From 31e4bd14baace2722e20aa78be40fcc401f054af Mon Sep 17 00:00:00 2001 From: Akhil Dhyani Date: Fri, 3 Apr 2026 10:51:23 +0530 Subject: [PATCH 001/116] fix: resolve clippy warnings and align naming with TS SDK MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit - Replace manual Default impl for EncryptionMode with #[derive(Default)] - Remove unused Instant import from server.rs - Rename is_public_server → is_announced_server to match TS SDK (cd7f411) - Update hardcoded protocol version to 2025-07-02 - Update examples, README, and DESIGN.md accordingly --- DESIGN.md | 2 +- README.md | 4 ++-- examples/gateway.rs | 2 +- src/core/types.rs | 9 ++------- src/gateway/mod.rs | 6 +++--- src/transport/client.rs | 4 ++-- src/transport/server.rs | 10 +++++----- 7 files changed, 16 insertions(+), 21 deletions(-) diff --git a/DESIGN.md b/DESIGN.md index fc9467f..7fe0ab7 100644 --- a/DESIGN.md +++ b/DESIGN.md @@ -221,7 +221,7 @@ tracing-subscriber = "0.3" - Unit test: rejects events from wrong server pubkey - [x] **2.4** Implement `NostrServerTransport` - - Config: relay_urls, encryption_mode, server_info, is_public_server, allowed_public_keys, excluded_capabilities, cleanup_interval_ms, session_timeout_ms + - Config: relay_urls, encryption_mode, server_info, is_announced_server, allowed_public_keys, excluded_capabilities, cleanup_interval_ms, session_timeout_ms - Implements `Transport` trait - Features: - Subscribe to events targeting server pubkey diff --git a/README.md b/README.md index 79ed657..dfe1d66 100644 --- a/README.md +++ b/README.md @@ -86,7 +86,7 @@ async fn main() -> contextvm_sdk::Result<()> { about: Some("Tools via Nostr".into()), ..Default::default() }), - is_public_server: true, + is_announced_server: true, ..Default::default() }, }; @@ -201,7 +201,7 @@ metadata-private delivery. Server announcements (kinds 11316–11320) are always | `relay_urls` | `["wss://relay.damus.io"]` | Nostr relays to connect to | | `encryption_mode` | `Optional` | Encryption policy | | `server_info` | `None` | Server metadata for announcements | -| `is_public_server` | `false` | Whether to publish announcements | +| `is_announced_server` | `false` | Whether to publish announcements (CEP-6) | | `allowed_public_keys` | `[]` (allow all) | Client pubkey allowlist (hex) | | `excluded_capabilities` | `[]` | Methods exempt from allowlist | | `session_timeout` | `300s` | Inactive session expiry | diff --git a/examples/gateway.rs b/examples/gateway.rs index ee6b1c5..2effaba 100644 --- a/examples/gateway.rs +++ b/examples/gateway.rs @@ -25,7 +25,7 @@ async fn main() -> contextvm_sdk::Result<()> { about: Some("A simple echo tool exposed via ContextVM".to_string()), ..Default::default() }), - is_public_server: true, + is_announced_server: true, ..Default::default() }, }; diff --git a/src/core/types.rs b/src/core/types.rs index cb10773..4ea2e34 100644 --- a/src/core/types.rs +++ b/src/core/types.rs @@ -10,10 +10,11 @@ use std::time::Instant; /// /// Controls whether MCP messages are sent as plaintext kind 25910 events /// or wrapped in NIP-59 gift wraps (kind 1059) for end-to-end encryption. -#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)] +#[derive(Debug, Clone, Copy, Default, PartialEq, Eq, Serialize, Deserialize)] #[serde(rename_all = "lowercase")] pub enum EncryptionMode { /// Encrypt responses only when the incoming request was encrypted (mirror mode). + #[default] Optional, /// Enforce encryption for all messages; reject plaintext. Required, @@ -21,12 +22,6 @@ pub enum EncryptionMode { Disabled, } -impl Default for EncryptionMode { - fn default() -> Self { - Self::Optional - } -} - // ── Server info ───────────────────────────────────────────────────── /// Server information for announcements (kind 11316). diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index d907611..3752e79 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -98,7 +98,7 @@ mod tests { version: Some("1.0.0".to_string()), ..Default::default() }), - is_public_server: true, + is_announced_server: true, allowed_public_keys: vec!["abc123".to_string()], excluded_capabilities: vec![], cleanup_interval: Duration::from_secs(120), @@ -109,7 +109,7 @@ mod tests { assert_eq!(config.nostr_config.relay_urls, vec!["wss://relay.example.com"]); assert_eq!(config.nostr_config.encryption_mode, EncryptionMode::Required); - assert!(config.nostr_config.is_public_server); + assert!(config.nostr_config.is_announced_server); assert_eq!(config.nostr_config.allowed_public_keys.len(), 1); assert!(config.nostr_config.server_info.as_ref().unwrap().name.as_ref().unwrap() == "Test Gateway"); } @@ -120,6 +120,6 @@ mod tests { nostr_config: NostrServerTransportConfig::default(), }; assert_eq!(config.nostr_config.encryption_mode, EncryptionMode::Optional); - assert!(!config.nostr_config.is_public_server); + assert!(!config.nostr_config.is_announced_server); } } diff --git a/src/transport/client.rs b/src/transport/client.rs index 7dffcf5..f29a103 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -153,7 +153,7 @@ impl NostrClientTransport { jsonrpc: "2.0".to_string(), id: request_id.clone(), result: serde_json::json!({ - "protocolVersion": "2025-03-26", + "protocolVersion": "2025-07-02", "serverInfo": { "name": "Emulated-Stateless-Server", "version": "1.0.0" @@ -275,7 +275,7 @@ mod tests { jsonrpc: "2.0".to_string(), id: request_id.clone(), result: serde_json::json!({ - "protocolVersion": "2025-03-26", + "protocolVersion": "2025-07-02", "serverInfo": { "name": "Emulated-Stateless-Server", "version": "1.0.0" diff --git a/src/transport/server.rs b/src/transport/server.rs index 43d97a8..beb2429 100644 --- a/src/transport/server.rs +++ b/src/transport/server.rs @@ -6,7 +6,7 @@ use std::collections::HashMap; use std::sync::Arc; -use std::time::{Duration, Instant}; +use std::time::Duration; use nostr_sdk::prelude::*; use tokio::sync::RwLock; @@ -27,8 +27,8 @@ pub struct NostrServerTransportConfig { pub encryption_mode: EncryptionMode, /// Server information for announcements. pub server_info: Option, - /// Whether this is a public server (publishes announcements). - pub is_public_server: bool, + /// Whether this server publishes public announcements (CEP-6). + pub is_announced_server: bool, /// Allowed client public keys (hex). Empty = allow all. pub allowed_public_keys: Vec, /// Capabilities excluded from pubkey whitelisting. @@ -45,7 +45,7 @@ impl Default for NostrServerTransportConfig { relay_urls: vec!["wss://relay.damus.io".to_string()], encryption_mode: EncryptionMode::Optional, server_info: None, - is_public_server: false, + is_announced_server: false, allowed_public_keys: Vec::new(), excluded_capabilities: Vec::new(), cleanup_interval: Duration::from_secs(60), @@ -745,7 +745,7 @@ mod tests { fn test_config_defaults() { let config = NostrServerTransportConfig::default(); assert_eq!(config.relay_urls, vec!["wss://relay.damus.io".to_string()]); - assert!(!config.is_public_server); + assert!(!config.is_announced_server); assert!(config.allowed_public_keys.is_empty()); assert!(config.excluded_capabilities.is_empty()); assert_eq!(config.cleanup_interval, Duration::from_secs(60)); From f2f7eb9d8896e35bf67b8a34669328c3effd1d7c Mon Sep 17 00:00:00 2001 From: Akhil Dhyani Date: Fri, 3 Apr 2026 10:53:19 +0530 Subject: [PATCH 002/116] feat: add CEP-17/CEP-19 constants and bootstrap relay URLs - Add EPHEMERAL_GIFT_WRAP_KIND (21059) for CEP-19 - Add RELAY_LIST_METADATA_KIND (10002) for CEP-17 - Add tags: RELAY, SUPPORT_ENCRYPTION_EPHEMERAL - Add DEFAULT_BOOTSTRAP_RELAY_URLS matching TS SDK - Add DEFAULT_LRU_SIZE, DEFAULT_TIMEOUT_MS - Add INITIALIZE_METHOD, NOTIFICATIONS_INITIALIZED_METHOD - Add 11 unit tests verifying values against spec and NIP-01 kind ranges --- src/core/constants.rs | 150 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 150 insertions(+) diff --git a/src/core/constants.rs b/src/core/constants.rs index 3748a3b..345c91b 100644 --- a/src/core/constants.rs +++ b/src/core/constants.rs @@ -9,6 +9,15 @@ pub const CTXVM_MESSAGES_KIND: u16 = 25910; /// Encrypted messages using NIP-59 Gift Wrap (kind 1059) pub const GIFT_WRAP_KIND: u16 = 1059; +/// Ephemeral variant of NIP-59 Gift Wrap (kind 21059, CEP-19) +/// +/// Same structure and semantics as kind 1059, but in NIP-01's ephemeral range. +/// Relays are not expected to store ephemeral events beyond transient forwarding. +pub const EPHEMERAL_GIFT_WRAP_KIND: u16 = 21059; + +/// Replaceable relay list metadata event following NIP-65 (CEP-17) +pub const RELAY_LIST_METADATA_KIND: u16 = 10002; + /// Server announcement (addressable, kind 11316) pub const SERVER_ANNOUNCEMENT_KIND: u16 = 11316; @@ -29,6 +38,9 @@ pub mod tags { /// Public key tag pub const PUBKEY: &str = "p"; + /// Relay URL tag (CEP-17) + pub const RELAY: &str = "r"; + /// Event ID tag for correlation pub const EVENT_ID: &str = "e"; @@ -49,11 +61,39 @@ pub mod tags { /// Support encryption tag pub const SUPPORT_ENCRYPTION: &str = "support_encryption"; + + /// Support ephemeral gift wrap kind (21059) for encrypted messages (CEP-19) + pub const SUPPORT_ENCRYPTION_EPHEMERAL: &str = "support_encryption_ephemeral"; } /// Maximum message size (1MB) pub const MAX_MESSAGE_SIZE: usize = 1024 * 1024; +/// Default LRU cache size for deduplication +pub const DEFAULT_LRU_SIZE: usize = 5000; + +/// Default timeout for network/relay operations (30 seconds) +pub const DEFAULT_TIMEOUT_MS: u64 = 30_000; + +/// Default relay targets for discoverability publication (CEP-17). +/// +/// These are used as additional publication targets for server metadata, +/// even when they are not part of the server's operational relay list. +pub const DEFAULT_BOOTSTRAP_RELAY_URLS: &[&str] = &[ + "wss://relay.damus.io", + "wss://relay.primal.net", + "wss://nos.lol", + "wss://relay.snort.social/", + "wss://nostr.mom/", + "wss://nostr.oxtr.dev/", +]; + +/// MCP protocol method for the initialization request +pub const INITIALIZE_METHOD: &str = "initialize"; + +/// MCP protocol method for the initialized notification +pub const NOTIFICATIONS_INITIALIZED_METHOD: &str = "notifications/initialized"; + /// Kinds that should never be encrypted (public announcements) pub const UNENCRYPTED_KINDS: &[u16] = &[ SERVER_ANNOUNCEMENT_KIND, @@ -62,3 +102,113 @@ pub const UNENCRYPTED_KINDS: &[u16] = &[ RESOURCETEMPLATES_LIST_KIND, PROMPTS_LIST_KIND, ]; + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_event_kind_values_match_spec() { + assert_eq!(CTXVM_MESSAGES_KIND, 25910); + assert_eq!(GIFT_WRAP_KIND, 1059); + assert_eq!(EPHEMERAL_GIFT_WRAP_KIND, 21059); + assert_eq!(RELAY_LIST_METADATA_KIND, 10002); + assert_eq!(SERVER_ANNOUNCEMENT_KIND, 11316); + assert_eq!(TOOLS_LIST_KIND, 11317); + assert_eq!(RESOURCES_LIST_KIND, 11318); + assert_eq!(RESOURCETEMPLATES_LIST_KIND, 11319); + assert_eq!(PROMPTS_LIST_KIND, 11320); + } + + #[test] + fn test_tag_values_match_ts_sdk() { + assert_eq!(tags::PUBKEY, "p"); + assert_eq!(tags::RELAY, "r"); + assert_eq!(tags::EVENT_ID, "e"); + assert_eq!(tags::CAPABILITY, "cap"); + assert_eq!(tags::NAME, "name"); + assert_eq!(tags::WEBSITE, "website"); + assert_eq!(tags::PICTURE, "picture"); + assert_eq!(tags::ABOUT, "about"); + assert_eq!(tags::SUPPORT_ENCRYPTION, "support_encryption"); + assert_eq!( + tags::SUPPORT_ENCRYPTION_EPHEMERAL, + "support_encryption_ephemeral" + ); + } + + #[test] + fn test_ephemeral_gift_wrap_in_ephemeral_range() { + // NIP-01: ephemeral events are 20000 <= kind < 30000 + assert!(EPHEMERAL_GIFT_WRAP_KIND >= 20000); + assert!(EPHEMERAL_GIFT_WRAP_KIND < 30000); + } + + #[test] + fn test_ctxvm_messages_in_ephemeral_range() { + // NIP-01: ephemeral events are 20000 <= kind < 30000 + assert!(CTXVM_MESSAGES_KIND >= 20000); + assert!(CTXVM_MESSAGES_KIND < 30000); + } + + #[test] + fn test_relay_list_metadata_in_replaceable_range() { + // NIP-01: replaceable events are 10000 <= kind < 20000 + assert!(RELAY_LIST_METADATA_KIND >= 10000); + assert!(RELAY_LIST_METADATA_KIND < 20000); + } + + #[test] + fn test_announcement_kinds_in_addressable_range() { + // NIP-01: addressable events are 30000 <= kind < 40000 + // However, the spec uses 11316-11320 which are in the replaceable range. + // These are parameterized replaceable events per the ContextVM spec. + for &kind in UNENCRYPTED_KINDS { + assert!(kind >= 11316); + assert!(kind <= 11320); + } + } + + #[test] + fn test_bootstrap_relays_are_wss() { + for url in DEFAULT_BOOTSTRAP_RELAY_URLS { + assert!( + url.starts_with("wss://"), + "Bootstrap relay must use wss: {url}" + ); + } + } + + #[test] + fn test_bootstrap_relays_nonempty() { + assert!( + !DEFAULT_BOOTSTRAP_RELAY_URLS.is_empty(), + "Must have at least one bootstrap relay" + ); + } + + #[test] + fn test_mcp_method_constants() { + assert_eq!(INITIALIZE_METHOD, "initialize"); + assert_eq!( + NOTIFICATIONS_INITIALIZED_METHOD, + "notifications/initialized" + ); + } + + #[test] + fn test_unencrypted_kinds_contains_all_announcements() { + assert!(UNENCRYPTED_KINDS.contains(&SERVER_ANNOUNCEMENT_KIND)); + assert!(UNENCRYPTED_KINDS.contains(&TOOLS_LIST_KIND)); + assert!(UNENCRYPTED_KINDS.contains(&RESOURCES_LIST_KIND)); + assert!(UNENCRYPTED_KINDS.contains(&RESOURCETEMPLATES_LIST_KIND)); + assert!(UNENCRYPTED_KINDS.contains(&PROMPTS_LIST_KIND)); + } + + #[test] + fn test_gift_wrap_not_in_unencrypted() { + assert!(!UNENCRYPTED_KINDS.contains(&GIFT_WRAP_KIND)); + assert!(!UNENCRYPTED_KINDS.contains(&EPHEMERAL_GIFT_WRAP_KIND)); + } +} + From 924bc3d35e094bb60c399a531f48c9c6b5e97cbb Mon Sep 17 00:00:00 2001 From: Akhil Dhyani Date: Fri, 3 Apr 2026 10:59:23 +0530 Subject: [PATCH 003/116] feat: support ephemeral gift wraps (kind 21059) per CEP-19 - Update base transport to subscribe to both kind 1059 and 21059 - Handle kind 21059 in both client and server transport event loops - Advertise support_encryption_ephemeral tag in server announcements - Clean up unused imports in base.rs and client.rs tests --- src/transport/base.rs | 16 ++++++++++++++-- src/transport/client.rs | 5 +++-- src/transport/server.rs | 8 +++++++- 3 files changed, 24 insertions(+), 5 deletions(-) diff --git a/src/transport/base.rs b/src/transport/base.rs index 0c19a4a..77c048b 100644 --- a/src/transport/base.rs +++ b/src/transport/base.rs @@ -71,10 +71,23 @@ impl BaseTransport { let two_days_ago = Timestamp::from(Timestamp::now().as_u64().saturating_sub(2 * 24 * 3600)); let gift_wrap_filter = Filter::new() .kind(Kind::Custom(GIFT_WRAP_KIND)) + .custom_tag(SingleLetterTag::lowercase(Alphabet::P), p_tag.clone()) + .since(two_days_ago); + + // CEP-19: Ephemeral gift wraps (kind 21059) — same semantics as 1059 + // but in the ephemeral range so relays don't persist them. + let ephemeral_gift_wrap_filter = Filter::new() + .kind(Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND)) .custom_tag(SingleLetterTag::lowercase(Alphabet::P), p_tag) .since(two_days_ago); - self.relay_pool.subscribe(vec![ephemeral_filter, gift_wrap_filter]).await + self.relay_pool + .subscribe(vec![ + ephemeral_filter, + gift_wrap_filter, + ephemeral_gift_wrap_filter, + ]) + .await } /// Convert a Nostr event to an MCP message with validation. @@ -163,7 +176,6 @@ impl BaseTransport { mod tests { use super::*; use crate::core::types::*; - use nostr_sdk::prelude::*; // Test should_encrypt logic without constructing full BaseTransport fn should_encrypt(mode: EncryptionMode, kind: u16, is_encrypted: Option) -> bool { diff --git a/src/transport/client.rs b/src/transport/client.rs index f29a103..fa49126 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -181,7 +181,9 @@ impl NostrClientTransport { if let RelayPoolNotification::Event { event, .. } = notification { // Handle gift-wrapped events let (actual_event_content, actual_pubkey, e_tag) = - if event.kind == Kind::Custom(GIFT_WRAP_KIND) { + if event.kind == Kind::Custom(GIFT_WRAP_KIND) + || event.kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND) + { // Single-layer NIP-44 decrypt (matches JS/TS SDK) let signer = match client.signer().await { Ok(s) => s, @@ -246,7 +248,6 @@ impl NostrClientTransport { #[cfg(test)] mod tests { use super::*; - use crate::core::types::*; #[test] fn test_config_defaults() { diff --git a/src/transport/server.rs b/src/transport/server.rs index beb2429..c6483a6 100644 --- a/src/transport/server.rs +++ b/src/transport/server.rs @@ -323,6 +323,10 @@ impl NostrServerTransport { TagKind::Custom(tags::SUPPORT_ENCRYPTION.into()), Vec::::new(), )); + tags.push(Tag::custom( + TagKind::Custom(tags::SUPPORT_ENCRYPTION_EPHEMERAL.into()), + Vec::::new(), + )); } let builder = @@ -429,7 +433,9 @@ impl NostrServerTransport { while let Ok(notification) = notifications.recv().await { if let RelayPoolNotification::Event { event, .. } = notification { let (content, sender_pubkey, event_id, is_encrypted) = - if event.kind == Kind::Custom(GIFT_WRAP_KIND) { + if event.kind == Kind::Custom(GIFT_WRAP_KIND) + || event.kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND) + { if encryption_mode == EncryptionMode::Disabled { tracing::warn!("Received encrypted message but encryption is disabled"); continue; From 79c62faef708d685d8bdae291ff5bf987329146b Mon Sep 17 00:00:00 2001 From: piyush-1337 Date: Fri, 3 Apr 2026 12:44:33 +0530 Subject: [PATCH 004/116] fix: return signed event id for encrypted message correlation --- src/transport/base.rs | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/src/transport/base.rs b/src/transport/base.rs index 0c19a4a..de17b83 100644 --- a/src/transport/base.rs +++ b/src/transport/base.rs @@ -101,7 +101,8 @@ impl BaseTransport { /// Send an MCP message to a recipient, optionally encrypting. /// - /// Returns the event ID of the published event. + /// Returns the signed MCP event ID. + /// When encrypted, this is the inner signed event ID. pub async fn send_mcp_message( &self, message: &JsonRpcMessage, @@ -113,6 +114,7 @@ impl BaseTransport { let should_encrypt = self.should_encrypt(kind, is_encrypted); let event = self.create_signed_event(message, kind, tags).await?; + let signed_event_id = event.id; if should_encrypt { // Single-layer gift wrap: JSON.stringify(signedEvent) → NIP-44 encrypt @@ -124,14 +126,18 @@ impl BaseTransport { let gift_wrap_event = encryption::gift_wrap_single_layer( &signer, recipient, &event_json, ).await?; - let event_id = self.relay_pool.publish_event(&gift_wrap_event).await?; - tracing::debug!(event_id = %event_id, "Sent encrypted MCP message"); - Ok(event_id) + self.relay_pool.publish_event(&gift_wrap_event).await?; + tracing::debug!( + signed_event_id = %signed_event_id, + envelope_id = %gift_wrap_event.id, + "Sent encrypted MCP message" + ); } else { - let event_id = self.relay_pool.publish_event(&event).await?; - tracing::debug!(event_id = %event_id, "Sent unencrypted MCP message"); - Ok(event_id) + self.relay_pool.publish_event(&event).await?; + tracing::debug!(signed_event_id = %signed_event_id, "Sent unencrypted MCP message"); } + + Ok(signed_event_id) } /// Determine whether a message should be encrypted. From d7d1ee5c4ec7b07d9484beca5d0238207f68d293 Mon Sep 17 00:00:00 2001 From: Akhil Dhyani Date: Fri, 3 Apr 2026 15:20:17 +0530 Subject: [PATCH 005/116] chore: align with CEP-4 and official rmcp SDK - Update gift wrap subscription to use since:now() per CEP-4 - Add rmcp v1.3.0 dependency - Use ProtocolVersion::LATEST in emulated client handshake and tests --- Cargo.toml | 1 + src/transport/base.rs | 11 +++-------- src/transport/client.rs | 5 +++-- 3 files changed, 7 insertions(+), 10 deletions(-) diff --git a/Cargo.toml b/Cargo.toml index 165dae7..b2e3a60 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -23,6 +23,7 @@ nostr-sdk = { version = "0.43", features = ["nip59"] } # Logging tracing = "0.1" +rmcp = "1.3.0" [dev-dependencies] tokio-test = "0.4" diff --git a/src/transport/base.rs b/src/transport/base.rs index 77c048b..d6e0b00 100644 --- a/src/transport/base.rs +++ b/src/transport/base.rs @@ -60,26 +60,21 @@ impl BaseTransport { pub async fn subscribe_for_pubkey(&self, pubkey: &PublicKey) -> Result<()> { let p_tag = pubkey.to_hex(); - // Ephemeral ContextVM messages — safe to use since:now() let ephemeral_filter = Filter::new() .kind(Kind::Custom(CTXVM_MESSAGES_KIND)) .custom_tag(SingleLetterTag::lowercase(Alphabet::P), p_tag.clone()) .since(Timestamp::now()); - // NIP-59 gift wraps — timestamps are randomized (up to ±48h or more), - // so we must NOT use since:now(). Limit to recent window instead. - let two_days_ago = Timestamp::from(Timestamp::now().as_u64().saturating_sub(2 * 24 * 3600)); + let now = Timestamp::now(); let gift_wrap_filter = Filter::new() .kind(Kind::Custom(GIFT_WRAP_KIND)) .custom_tag(SingleLetterTag::lowercase(Alphabet::P), p_tag.clone()) - .since(two_days_ago); + .since(now); - // CEP-19: Ephemeral gift wraps (kind 21059) — same semantics as 1059 - // but in the ephemeral range so relays don't persist them. let ephemeral_gift_wrap_filter = Filter::new() .kind(Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND)) .custom_tag(SingleLetterTag::lowercase(Alphabet::P), p_tag) - .since(two_days_ago); + .since(now); self.relay_pool .subscribe(vec![ diff --git a/src/transport/client.rs b/src/transport/client.rs index fa49126..5a0255b 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -17,6 +17,7 @@ use crate::core::types::*; use crate::encryption; use crate::relay::RelayPool; use crate::transport::base::BaseTransport; +use rmcp::model::ProtocolVersion; /// Configuration for the client transport. pub struct NostrClientTransportConfig { @@ -153,7 +154,7 @@ impl NostrClientTransport { jsonrpc: "2.0".to_string(), id: request_id.clone(), result: serde_json::json!({ - "protocolVersion": "2025-07-02", + "protocolVersion": ProtocolVersion::LATEST.to_string(), "serverInfo": { "name": "Emulated-Stateless-Server", "version": "1.0.0" @@ -276,7 +277,7 @@ mod tests { jsonrpc: "2.0".to_string(), id: request_id.clone(), result: serde_json::json!({ - "protocolVersion": "2025-07-02", + "protocolVersion": ProtocolVersion::LATEST.to_string(), "serverInfo": { "name": "Emulated-Stateless-Server", "version": "1.0.0" From e569fa994031128b5a3c9ba2c4b398cf9e7c3308 Mon Sep 17 00:00:00 2001 From: Kushagra Date: Fri, 3 Apr 2026 16:33:22 +0530 Subject: [PATCH 006/116] feat: implemented basic rmcp support helpers and functions --- Cargo.toml | 8 ++ src/lib.rs | 6 + src/rmcp_transport/convert.rs | 44 ++++++ src/rmcp_transport/mod.rs | 13 ++ src/rmcp_transport/worker.rs | 246 ++++++++++++++++++++++++++++++++++ 5 files changed, 317 insertions(+) create mode 100644 src/rmcp_transport/convert.rs create mode 100644 src/rmcp_transport/mod.rs create mode 100644 src/rmcp_transport/worker.rs diff --git a/Cargo.toml b/Cargo.toml index 165dae7..8ea0a1b 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -24,6 +24,14 @@ nostr-sdk = { version = "0.43", features = ["nip59"] } # Logging tracing = "0.1" +# Optional MCP integration (Rust equivalent to TS @modelcontextprotocol/sdk) +rmcp = { version = "0.16.0", features = ["server", "client", "macros", "transport-worker"], optional = true } + +[features] +# Enable rmcp by default while keeping legacy APIs available. +default = ["rmcp"] +rmcp = ["dep:rmcp"] + [dev-dependencies] tokio-test = "0.4" tracing-subscriber = "0.3" diff --git a/src/lib.rs b/src/lib.rs index becd92e..cc2a09e 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -45,6 +45,9 @@ pub mod relay; pub mod signer; pub mod transport; +#[cfg(feature = "rmcp")] +pub mod rmcp_transport; + // Re-export commonly used types pub use core::error::{Error, Result}; pub use core::types::{ @@ -55,3 +58,6 @@ pub use discovery::ServerAnnouncement; pub use relay::RelayPool; pub use transport::client::{NostrClientTransport, NostrClientTransportConfig}; pub use transport::server::{IncomingRequest, NostrServerTransport, NostrServerTransportConfig}; + +#[cfg(feature = "rmcp")] +pub use rmcp; diff --git a/src/rmcp_transport/convert.rs b/src/rmcp_transport/convert.rs new file mode 100644 index 0000000..e6c49bb --- /dev/null +++ b/src/rmcp_transport/convert.rs @@ -0,0 +1,44 @@ +//! Conversion boundary between internal JSON-RPC messages and rmcp message types. +//! +//! These helpers intentionally convert via serde JSON to preserve wire-level +//! compatibility and avoid fragile hand-mapping between evolving type systems. + +use crate::core::types::JsonRpcMessage; + +/// Convert internal JSON-RPC message into rmcp server RX message. +/// +/// Role mapping: +/// - RoleServer RX receives client-originated messages. +pub fn internal_to_rmcp_server_rx( + msg: &JsonRpcMessage, +) -> Option> { + let value = serde_json::to_value(msg).ok()?; + serde_json::from_value(value).ok() +} + +/// Convert internal JSON-RPC message into rmcp client RX message. +/// +/// Role mapping: +/// - RoleClient RX receives server-originated messages. +pub fn internal_to_rmcp_client_rx( + msg: &JsonRpcMessage, +) -> Option> { + let value = serde_json::to_value(msg).ok()?; + serde_json::from_value(value).ok() +} + +/// Convert rmcp server TX message back into internal JSON-RPC. +pub fn rmcp_server_tx_to_internal( + msg: rmcp::service::TxJsonRpcMessage, +) -> Option { + let value = serde_json::to_value(msg).ok()?; + serde_json::from_value(value).ok() +} + +/// Convert rmcp client TX message back into internal JSON-RPC. +pub fn rmcp_client_tx_to_internal( + msg: rmcp::service::TxJsonRpcMessage, +) -> Option { + let value = serde_json::to_value(msg).ok()?; + serde_json::from_value(value).ok() +} diff --git a/src/rmcp_transport/mod.rs b/src/rmcp_transport/mod.rs new file mode 100644 index 0000000..c1857f8 --- /dev/null +++ b/src/rmcp_transport/mod.rs @@ -0,0 +1,13 @@ +//! RMCP integration scaffolding. +//! +//! This module will host adapters that bridge the existing Nostr transport +//! implementation with rmcp services. + +pub mod convert; +pub mod worker; + +pub use convert::{ + internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, + rmcp_server_tx_to_internal, +}; +pub use worker::{NostrClientWorker, NostrServerWorker}; diff --git a/src/rmcp_transport/worker.rs b/src/rmcp_transport/worker.rs new file mode 100644 index 0000000..6807fbc --- /dev/null +++ b/src/rmcp_transport/worker.rs @@ -0,0 +1,246 @@ +//! rmcp worker adapters. +//! +//! This file defines wrapper types that bind existing ContextVM Nostr +//! transports to rmcp's worker abstraction. + +use crate::core::error::Result; +use crate::core::types::JsonRpcMessage; +use crate::transport::client::{NostrClientTransport, NostrClientTransportConfig}; +use crate::transport::server::{NostrServerTransport, NostrServerTransportConfig}; +use rmcp::transport::worker::{Worker, WorkerContext, WorkerQuitReason}; + +use super::convert::{ + internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, + rmcp_server_tx_to_internal, +}; + +/// rmcp server worker wrapper for ContextVM Nostr server transport. +pub struct NostrServerWorker { + transport: NostrServerTransport, +} + +impl NostrServerWorker { + /// Create a new server worker from existing server transport config. + pub async fn new(signer: T, config: NostrServerTransportConfig) -> Result + where + T: nostr_sdk::prelude::IntoNostrSigner, + { + let transport = NostrServerTransport::new(signer, config).await?; + Ok(Self { transport }) + } + + /// Access the wrapped transport. + pub fn transport(&self) -> &NostrServerTransport { + &self.transport + } +} + +impl Worker for NostrServerWorker { + type Error = crate::core::error::Error; + type Role = rmcp::RoleServer; + + fn err_closed() -> Self::Error { + Self::Error::Transport("rmcp worker channel closed".to_string()) + } + + fn err_join(e: tokio::task::JoinError) -> Self::Error { + Self::Error::Other(format!("rmcp worker join error: {e}")) + } + + async fn run( + mut self, + mut context: WorkerContext, + ) -> std::result::Result<(), WorkerQuitReason> { + self.transport + .start() + .await + .map_err(WorkerQuitReason::fatal_context("starting server transport"))?; + + let mut rx = self.transport.take_message_receiver().ok_or_else(|| { + WorkerQuitReason::fatal( + Self::Error::Other("server message receiver already taken".to_string()), + "taking server message receiver", + ) + })?; + + let cancellation_token = context.cancellation_token.clone(); + + let quit_reason = loop { + tokio::select! { + _ = cancellation_token.cancelled() => { + break WorkerQuitReason::Cancelled; + } + incoming = rx.recv() => { + let Some(mut incoming) = incoming else { + break WorkerQuitReason::TransportClosed; + }; + + // Use event_id as internal request id to keep response routing deterministic. + if let JsonRpcMessage::Request(ref mut req) = incoming.message { + req.id = serde_json::json!(incoming.event_id.clone()); + } + + if let Some(rmcp_msg) = internal_to_rmcp_server_rx(&incoming.message) { + if let Err(reason) = context.send_to_handler(rmcp_msg).await { + break reason; + } + } else { + tracing::warn!("Failed to convert incoming server-side message to rmcp format"); + } + } + outbound = context.recv_from_handler() => { + let outbound = match outbound { + Ok(outbound) => outbound, + Err(reason) => break reason, + }; + + let result = if let Some(internal_msg) = rmcp_server_tx_to_internal(outbound.message) { + self.forward_server_internal(internal_msg).await + } else { + Err(Self::Error::Validation( + "failed converting rmcp server message to internal JSON-RPC".to_string(), + )) + }; + + let _ = outbound.responder.send(result); + } + } + }; + + if let Err(e) = self.transport.close().await { + tracing::warn!("Failed to close server transport cleanly: {e}"); + } + + Err(quit_reason) + } +} + +/// rmcp client worker wrapper for ContextVM Nostr client transport. +pub struct NostrClientWorker { + transport: NostrClientTransport, +} + +impl NostrClientWorker { + /// Create a new client worker from existing client transport config. + pub async fn new(signer: T, config: NostrClientTransportConfig) -> Result + where + T: nostr_sdk::prelude::IntoNostrSigner, + { + let transport = NostrClientTransport::new(signer, config).await?; + Ok(Self { transport }) + } + + /// Access the wrapped transport. + pub fn transport(&self) -> &NostrClientTransport { + &self.transport + } +} + +impl Worker for NostrClientWorker { + type Error = crate::core::error::Error; + type Role = rmcp::RoleClient; + + fn err_closed() -> Self::Error { + Self::Error::Transport("rmcp worker channel closed".to_string()) + } + + fn err_join(e: tokio::task::JoinError) -> Self::Error { + Self::Error::Other(format!("rmcp worker join error: {e}")) + } + + async fn run( + mut self, + mut context: WorkerContext, + ) -> std::result::Result<(), WorkerQuitReason> { + self.transport + .start() + .await + .map_err(WorkerQuitReason::fatal_context("starting client transport"))?; + + let mut rx = self.transport.take_message_receiver().ok_or_else(|| { + WorkerQuitReason::fatal( + Self::Error::Other("client message receiver already taken".to_string()), + "taking client message receiver", + ) + })?; + + let cancellation_token = context.cancellation_token.clone(); + + let quit_reason = loop { + tokio::select! { + _ = cancellation_token.cancelled() => { + break WorkerQuitReason::Cancelled; + } + incoming = rx.recv() => { + let Some(incoming) = incoming else { + break WorkerQuitReason::TransportClosed; + }; + + if let Some(rmcp_msg) = internal_to_rmcp_client_rx(&incoming) { + if let Err(reason) = context.send_to_handler(rmcp_msg).await { + break reason; + } + } else { + tracing::warn!("Failed to convert incoming client-side message to rmcp format"); + } + } + outbound = context.recv_from_handler() => { + let outbound = match outbound { + Ok(outbound) => outbound, + Err(reason) => break reason, + }; + + let result = if let Some(internal_msg) = rmcp_client_tx_to_internal(outbound.message) { + self.transport.send(&internal_msg).await + } else { + Err(Self::Error::Validation( + "failed converting rmcp client message to internal JSON-RPC".to_string(), + )) + }; + + let _ = outbound.responder.send(result); + } + } + }; + + if let Err(e) = self.transport.close().await { + tracing::warn!("Failed to close client transport cleanly: {e}"); + } + + Err(quit_reason) + } +} + +impl NostrServerWorker { + async fn forward_server_internal(&self, message: JsonRpcMessage) -> Result<()> { + match message { + JsonRpcMessage::Response(resp) => { + let event_id = resp.id.as_str().map(str::to_owned).ok_or_else(|| { + crate::core::error::Error::Validation( + "rmcp server response id must be a string event id".to_string(), + ) + })?; + self.transport + .send_response(&event_id, JsonRpcMessage::Response(resp)) + .await + } + JsonRpcMessage::ErrorResponse(resp) => { + let event_id = resp.id.as_str().map(str::to_owned).ok_or_else(|| { + crate::core::error::Error::Validation( + "rmcp server error response id must be a string event id".to_string(), + ) + })?; + self.transport + .send_response(&event_id, JsonRpcMessage::ErrorResponse(resp)) + .await + } + JsonRpcMessage::Notification(notification) => { + let message = JsonRpcMessage::Notification(notification); + self.transport.broadcast_notification(&message).await + } + JsonRpcMessage::Request(_) => Err(crate::core::error::Error::Validation( + "rmcp server worker cannot forward outbound request messages".to_string(), + )), + } + } +} From 78edc9cb0c68695ad01c4b10dc1622459dd31bf2 Mon Sep 17 00:00:00 2001 From: Kushagra Date: Fri, 3 Apr 2026 20:46:38 +0530 Subject: [PATCH 007/116] feat: wired logic in gateway --- src/core/constants.rs | 6 + src/gateway/mod.rs | 26 +++ src/rmcp_transport/convert.rs | 101 +++++++++ src/rmcp_transport/mod.rs | 6 +- src/rmcp_transport/pipeline_tests.rs | 309 +++++++++++++++++++++++++++ src/rmcp_transport/worker.rs | 113 ++++++++-- src/transport/client.rs | 16 +- src/transport/server.rs | 49 +++++ 8 files changed, 598 insertions(+), 28 deletions(-) create mode 100644 src/rmcp_transport/pipeline_tests.rs diff --git a/src/core/constants.rs b/src/core/constants.rs index 345c91b..8aecf78 100644 --- a/src/core/constants.rs +++ b/src/core/constants.rs @@ -69,6 +69,12 @@ pub mod tags { /// Maximum message size (1MB) pub const MAX_MESSAGE_SIZE: usize = 1024 * 1024; +/// MCP protocol version string used in initialize responses. +/// +/// Matches the `protocolVersion` field of the `InitializeResult` JSON-RPC response. +/// Keep this in sync with the MCP spec and rmcp's `ProtocolVersion::LATEST`. +pub const MCP_PROTOCOL_VERSION: &str = "2025-11-25"; + /// Default LRU cache size for deduplication pub const DEFAULT_LRU_SIZE: usize = 5000; diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index 3752e79..345f2b3 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -81,6 +81,32 @@ impl NostrMCPGateway { } } +#[cfg(feature = "rmcp")] +impl NostrMCPGateway { + /// Start a gateway directly from an rmcp server handler. + /// + /// This additive API keeps the existing `new/start/send_response` flow intact, + /// while allowing rmcp-first usage through the worker adapter. + pub async fn serve_handler( + signer: T, + config: GatewayConfig, + handler: H, + ) -> Result> + where + T: nostr_sdk::prelude::IntoNostrSigner, + H: rmcp::ServerHandler, + { + use crate::rmcp_transport::NostrServerWorker; + use rmcp::ServiceExt; + + let worker = NostrServerWorker::new(signer, config.nostr_config).await?; + handler + .serve(worker) + .await + .map_err(|e| Error::Other(format!("rmcp server initialization failed: {e}"))) + } +} + #[cfg(test)] mod tests { use super::*; diff --git a/src/rmcp_transport/convert.rs b/src/rmcp_transport/convert.rs index e6c49bb..e575c37 100644 --- a/src/rmcp_transport/convert.rs +++ b/src/rmcp_transport/convert.rs @@ -42,3 +42,104 @@ pub fn rmcp_client_tx_to_internal( let value = serde_json::to_value(msg).ok()?; serde_json::from_value(value).ok() } + +#[cfg(all(test, feature = "rmcp"))] +mod tests { + use super::*; + use crate::core::types::{JsonRpcRequest, JsonRpcResponse}; + + #[test] + fn test_internal_request_to_rmcp_server_rx_ping() { + let internal = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "ping".to_string(), + params: None, + }); + + let rmcp_msg = internal_to_rmcp_server_rx(&internal) + .expect("expected conversion to rmcp server rx message"); + let value = serde_json::to_value(rmcp_msg).expect("serialize rmcp message to JSON"); + + assert_eq!(value.get("method"), Some(&serde_json::json!("ping"))); + assert_eq!(value.get("id"), Some(&serde_json::json!(1))); + } + + #[test] + fn test_internal_response_to_rmcp_client_rx_empty_result() { + let internal = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(42), + result: serde_json::json!({}), + }); + + let rmcp_msg = internal_to_rmcp_client_rx(&internal) + .expect("expected conversion to rmcp client rx message"); + let value = serde_json::to_value(rmcp_msg).expect("serialize rmcp message to JSON"); + + assert_eq!(value.get("id"), Some(&serde_json::json!(42))); + assert_eq!(value.get("result"), Some(&serde_json::json!({}))); + } + + #[test] + fn test_rmcp_server_tx_to_internal_response() { + let rmcp_msg = rmcp::model::ServerJsonRpcMessage::response( + rmcp::model::ServerResult::empty(()), + rmcp::model::RequestId::Number(7), + ); + + let internal = rmcp_server_tx_to_internal(rmcp_msg) + .expect("expected conversion from rmcp server tx to internal JSON-RPC"); + + match internal { + JsonRpcMessage::Response(resp) => { + assert_eq!(resp.id, serde_json::json!(7)); + assert_eq!(resp.result, serde_json::json!({})); + } + other => panic!("expected internal response, got {other:?}"), + } + } + + #[test] + fn test_rmcp_client_tx_to_internal_response() { + let rmcp_msg = rmcp::model::ClientJsonRpcMessage::response( + rmcp::model::ClientResult::empty(()), + rmcp::model::RequestId::Number(9), + ); + + let internal = rmcp_client_tx_to_internal(rmcp_msg) + .expect("expected conversion from rmcp client tx to internal JSON-RPC"); + + match internal { + JsonRpcMessage::Response(resp) => { + assert_eq!(resp.id, serde_json::json!(9)); + assert_eq!(resp.result, serde_json::json!({})); + } + other => panic!("expected internal response, got {other:?}"), + } + } + + #[test] + fn test_server_rx_roundtrip_preserves_wire_shape() { + let internal = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("abc"), + method: "ping".to_string(), + params: None, + }); + + let rmcp_msg = internal_to_rmcp_server_rx(&internal) + .expect("expected conversion to rmcp server rx message"); + let value = serde_json::to_value(rmcp_msg).expect("serialize rmcp message to JSON"); + let roundtrip_internal: JsonRpcMessage = + serde_json::from_value(value).expect("deserialize back to internal JSON-RPC"); + + match roundtrip_internal { + JsonRpcMessage::Request(req) => { + assert_eq!(req.id, serde_json::json!("abc")); + assert_eq!(req.method, "ping"); + } + other => panic!("expected internal request, got {other:?}"), + } + } +} diff --git a/src/rmcp_transport/mod.rs b/src/rmcp_transport/mod.rs index c1857f8..44a2ab1 100644 --- a/src/rmcp_transport/mod.rs +++ b/src/rmcp_transport/mod.rs @@ -1,11 +1,13 @@ //! RMCP integration scaffolding. //! -//! This module will host adapters that bridge the existing Nostr transport -//! implementation with rmcp services. +//! This module bridges the existing Nostr transport implementation with rmcp services. pub mod convert; pub mod worker; +#[cfg(test)] +mod pipeline_tests; + pub use convert::{ internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, rmcp_server_tx_to_internal, diff --git a/src/rmcp_transport/pipeline_tests.rs b/src/rmcp_transport/pipeline_tests.rs new file mode 100644 index 0000000..d8da58d --- /dev/null +++ b/src/rmcp_transport/pipeline_tests.rs @@ -0,0 +1,309 @@ +//! End-to-end pipeline tests for the rmcp ↔ Nostr transport integration. +//! +//! These tests verify every step of the message journey without requiring a live +//! relay connection: +//! +//! ```text +//! Nostr event content (JSON string) +//! → serializers::nostr_event_to_mcp_message [Layer 1: deserialise] +//! → internal_to_rmcp_server_rx [Layer 2: type bridge] +//! → (rmcp handler processes it) [Layer 3: rmcp dispatch – simulated] +//! → rmcp_server_tx_to_internal [Layer 4: type bridge back] +//! → send_response (event_id correlation) [Layer 5: route back to Nostr – mocked] +//! ``` + +#[cfg(all(test, feature = "rmcp"))] +mod tests { + use std::collections::HashMap; + + use rmcp::model::{ClientJsonRpcMessage, ClientResult, RequestId, ServerJsonRpcMessage, ServerResult}; + + use crate::core::serializers; + use crate::core::types::{JsonRpcError, JsonRpcErrorResponse, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse}; + use crate::rmcp_transport::convert::{ + internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, + rmcp_client_tx_to_internal, rmcp_server_tx_to_internal, + }; + + // ── Layer 1: Nostr event content → JsonRpcMessage ────────────────────── + + #[test] + fn layer1_nostr_content_to_internal_request() { + let content = r#"{"jsonrpc":"2.0","id":1,"method":"ping","params":{}}"#; + let msg = serializers::nostr_event_to_mcp_message(content) + .expect("valid MCP request should parse"); + + assert!(msg.is_request()); + assert_eq!(msg.method(), Some("ping")); + assert_eq!(msg.id(), Some(&serde_json::json!(1))); + } + + #[test] + fn layer1_nostr_content_to_internal_tools_list() { + let content = r#"{"jsonrpc":"2.0","id":"abc","method":"tools/list","params":{}}"#; + let msg = serializers::nostr_event_to_mcp_message(content).unwrap(); + assert_eq!(msg.method(), Some("tools/list")); + assert_eq!(msg.id(), Some(&serde_json::json!("abc"))); + } + + #[test] + fn layer1_nostr_content_to_internal_notification() { + let content = r#"{"jsonrpc":"2.0","method":"notifications/initialized"}"#; + let msg = serializers::nostr_event_to_mcp_message(content).unwrap(); + assert!(!msg.is_request()); + assert_eq!(msg.method(), Some("notifications/initialized")); + } + + #[test] + fn layer1_nostr_content_invalid_json_returns_none() { + assert!(serializers::nostr_event_to_mcp_message("not json").is_none()); + } + + #[test] + fn layer1_nostr_event_to_mcp_message_no_version_check() { + // DESIGN NOTE: nostr_event_to_mcp_message uses raw serde deserialization — + // it does NOT reject invalid jsonrpc versions. Version enforcement happens + // one layer up in base.rs via validate_message(), which IS tested separately + // in core::validation::tests::test_invalid_version and + // transport::base::tests::test_convert_event_to_mcp_invalid_jsonrpc_version. + // + // A message with jsonrpc "1.0" will parse successfully at the serializer + // layer because JsonRpcRequest accepts any String for the jsonrpc field. + let content = r#"{"jsonrpc":"1.0","id":1,"method":"ping"}"#; + // It parses — the struct captures jsonrpc as a plain String. + let msg = serializers::nostr_event_to_mcp_message(content); + // We don't assert None here; rejection happens in base.rs, not here. + // What we DO assert: if it parsed, the method and id are intact. + if let Some(msg) = msg { + assert_eq!(msg.method(), Some("ping")); + } + // The real rejection path is covered by: + // transport::base::tests::test_convert_event_to_mcp_invalid_jsonrpc_version + } + + // ── Layer 2: JsonRpcMessage → rmcp RxJsonRpcMessage (server) ─────────── + + #[test] + fn layer2_internal_request_converts_to_rmcp_server_rx() { + let msg = make_request("ping", serde_json::json!(1), None); + let rmcp = internal_to_rmcp_server_rx(&msg).expect("ping should convert"); + + let v = serde_json::to_value(&rmcp).unwrap(); + assert_eq!(v["method"], "ping"); + assert_eq!(v["id"], serde_json::json!(1)); + assert_eq!(v["jsonrpc"], "2.0"); + } + + #[test] + fn layer2_string_id_preserved_through_bridge() { + let msg = make_request("tools/list", serde_json::json!("req-xyz"), None); + let rmcp = internal_to_rmcp_server_rx(&msg).unwrap(); + + let v = serde_json::to_value(&rmcp).unwrap(); + assert_eq!(v["id"], serde_json::json!("req-xyz")); + } + + #[test] + fn layer2_notification_converts_to_rmcp_server_rx() { + let msg = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/initialized".to_string(), + params: None, + }); + let rmcp = internal_to_rmcp_server_rx(&msg) + .expect("initialized notification should convert"); + let v = serde_json::to_value(&rmcp).unwrap(); + assert_eq!(v["method"], "notifications/initialized"); + } + + #[test] + fn layer2_tools_list_with_params_converts() { + let msg = make_request( + "tools/list", + serde_json::json!(7), + Some(serde_json::json!({"cursor": "next-page"})), + ); + let rmcp = internal_to_rmcp_server_rx(&msg).unwrap(); + let v = serde_json::to_value(&rmcp).unwrap(); + assert_eq!(v["method"], "tools/list"); + assert_eq!(v["params"]["cursor"], "next-page"); + } + + // ── Layer 3+4: Simulated handler → rmcp response → internal ──────────── + + #[test] + fn layer4_rmcp_ping_response_roundtrip_number_id() { + // Simulate rmcp handler producing a ping response + let rmcp_response = ServerJsonRpcMessage::response( + ServerResult::empty(()), + RequestId::Number(42), + ); + let internal = rmcp_server_tx_to_internal(rmcp_response) + .expect("ping response should convert back"); + + match internal { + JsonRpcMessage::Response(r) => { + assert_eq!(r.id, serde_json::json!(42)); + assert_eq!(r.jsonrpc, "2.0"); + } + other => panic!("expected Response, got {other:?}"), + } + } + + #[test] + fn layer4_rmcp_ping_response_roundtrip_string_id() { + let rmcp_response = ServerJsonRpcMessage::response( + ServerResult::empty(()), + RequestId::String(std::sync::Arc::from("req-xyz")), + ); + let internal = rmcp_server_tx_to_internal(rmcp_response).unwrap(); + + match internal { + JsonRpcMessage::Response(r) => { + assert_eq!(r.id, serde_json::json!("req-xyz")); + } + other => panic!("expected Response, got {other:?}"), + } + } + + // ── Full roundtrip: internal → rmcp → internal ────────────────────────── + + #[test] + fn full_server_roundtrip_request_id_preserved() { + // Layer 2: convert incoming request to rmcp + let original = make_request("ping", serde_json::json!(99), None); + let rmcp_rx = internal_to_rmcp_server_rx(&original).unwrap(); + + // Extract the ID that rmcp sees + let rmcp_value = serde_json::to_value(&rmcp_rx).unwrap(); + let id_seen_by_rmcp = rmcp_value["id"].clone(); + assert_eq!(id_seen_by_rmcp, serde_json::json!(99)); + + // Layer 4: rmcp produces a response with the same ID echoed back + let rmcp_tx = ServerJsonRpcMessage::response( + ServerResult::empty(()), + RequestId::Number(99), + ); + let response = rmcp_server_tx_to_internal(rmcp_tx).unwrap(); + + // The response ID must equal the original request ID + assert_eq!(response.id(), Some(&serde_json::json!(99))); + } + + #[test] + fn full_client_roundtrip_response_id_preserved() { + // Client side: rmcp produces an outbound request + let rmcp_tx = ClientJsonRpcMessage::response( + ClientResult::empty(()), + RequestId::Number(7), + ); + let internal = rmcp_client_tx_to_internal(rmcp_tx).unwrap(); + assert_eq!(internal.id(), Some(&serde_json::json!(7))); + + // And an incoming server response converts to rmcp correctly + let incoming_response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(7), + result: serde_json::json!({"tools": []}), + }); + let rmcp_rx = internal_to_rmcp_client_rx(&incoming_response).unwrap(); + let v = serde_json::to_value(&rmcp_rx).unwrap(); + assert_eq!(v["id"], serde_json::json!(7)); + assert_eq!(v["result"]["tools"], serde_json::json!([])); + } + + // ── Layer 5: ID correlation map logic (mirrors NostrServerWorker) ──────── + + #[test] + fn layer5_worker_correlation_map_number_id() { + let mut request_id_to_event_id: HashMap = HashMap::new(); + let fake_event_id = "aaaaaa".to_string(); + + // Step 1: incoming request arrives — worker stores req_id → event_id + let req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(42), + method: "tools/list".to_string(), + params: None, + }); + + if let JsonRpcMessage::Request(ref r) = req { + let key = serde_json::to_string(&r.id).unwrap(); + request_id_to_event_id.insert(key, fake_event_id.clone()); + } + + // Step 2: rmcp response comes back with id=42 + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(42), + result: serde_json::json!({}), + }); + + // Step 3: worker looks up the event_id to call send_response + if let JsonRpcMessage::Response(ref r) = response { + let key = serde_json::to_string(&r.id).unwrap(); + let found = request_id_to_event_id.remove(&key); + assert_eq!(found, Some(fake_event_id)); + } else { + panic!("expected Response"); + } + + // Map should be empty after handling + assert!(request_id_to_event_id.is_empty()); + } + + #[test] + fn layer5_worker_correlation_map_string_id() { + let mut request_id_to_event_id: HashMap = HashMap::new(); + let fake_event_id = "bbbbbb".to_string(); + + // String IDs serialize with surrounding quotes: "\"req-abc\"" + let req_id = serde_json::json!("req-abc"); + let key = serde_json::to_string(&req_id).unwrap(); + request_id_to_event_id.insert(key.clone(), fake_event_id.clone()); + + // The response ID serializes identically + let resp_id = serde_json::json!("req-abc"); + let resp_key = serde_json::to_string(&resp_id).unwrap(); + + // Key derived from response ID must match the one stored from request ID + assert_eq!(key, resp_key); + assert_eq!(request_id_to_event_id.remove(&resp_key), Some(fake_event_id)); + } + + #[test] + fn layer5_error_response_correlation_works() { + let mut map: HashMap = HashMap::new(); + map.insert(serde_json::to_string(&serde_json::json!(5)).unwrap(), "evt5".to_string()); + + let error_response = JsonRpcMessage::ErrorResponse(JsonRpcErrorResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(5), + error: JsonRpcError { + code: -32601, + message: "Method not found".to_string(), + data: None, + }, + }); + + if let JsonRpcMessage::ErrorResponse(ref r) = error_response { + let key = serde_json::to_string(&r.id).unwrap(); + assert_eq!(map.remove(&key), Some("evt5".to_string())); + } + } + + // ── Helper ────────────────────────────────────────────────────────────── + + fn make_request( + method: &str, + id: serde_json::Value, + params: Option, + ) -> JsonRpcMessage { + JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id, + method: method.to_string(), + params, + }) + } +} diff --git a/src/rmcp_transport/worker.rs b/src/rmcp_transport/worker.rs index 6807fbc..72f729f 100644 --- a/src/rmcp_transport/worker.rs +++ b/src/rmcp_transport/worker.rs @@ -3,6 +3,8 @@ //! This file defines wrapper types that bind existing ContextVM Nostr //! transports to rmcp's worker abstraction. +use std::collections::HashMap; + use crate::core::error::Result; use crate::core::types::JsonRpcMessage; use crate::transport::client::{NostrClientTransport, NostrClientTransportConfig}; @@ -17,6 +19,10 @@ use super::convert::{ /// rmcp server worker wrapper for ContextVM Nostr server transport. pub struct NostrServerWorker { transport: NostrServerTransport, + // rmcp service instance is single-peer. Keep one active client per worker. + active_client_pubkey: Option, + // Maps request id (serialized JSON value) -> incoming Nostr event id. + request_id_to_event_id: HashMap, } impl NostrServerWorker { @@ -26,7 +32,11 @@ impl NostrServerWorker { T: nostr_sdk::prelude::IntoNostrSigner, { let transport = NostrServerTransport::new(signer, config).await?; - Ok(Self { transport }) + Ok(Self { + transport, + active_client_pubkey: None, + request_id_to_event_id: HashMap::new(), + }) } /// Access the wrapped transport. @@ -71,16 +81,45 @@ impl Worker for NostrServerWorker { break WorkerQuitReason::Cancelled; } incoming = rx.recv() => { - let Some(mut incoming) = incoming else { + let Some(incoming) = incoming else { break WorkerQuitReason::TransportClosed; }; - // Use event_id as internal request id to keep response routing deterministic. - if let JsonRpcMessage::Request(ref mut req) = incoming.message { - req.id = serde_json::json!(incoming.event_id.clone()); + let crate::transport::server::IncomingRequest { + message, + client_pubkey, + event_id, + .. + } = incoming; + + match &self.active_client_pubkey { + Some(active) if active != &client_pubkey => { + tracing::warn!( + active_client = %active, + ignored_client = %client_pubkey, + "Ignoring message from second client: rmcp server worker currently supports one active client per worker" + ); + continue; + } + None => { + tracing::info!(client_pubkey = %client_pubkey, "Binding rmcp server worker to first client session"); + self.active_client_pubkey = Some(client_pubkey.clone()); + } + _ => {} + } + + if let JsonRpcMessage::Request(req) = &message { + match serde_json::to_string(&req.id) { + Ok(request_key) => { + self.request_id_to_event_id.insert(request_key, event_id); + } + Err(e) => { + tracing::warn!("Failed to serialize request id for correlation map: {e}"); + } + } } - if let Some(rmcp_msg) = internal_to_rmcp_server_rx(&incoming.message) { + if let Some(rmcp_msg) = internal_to_rmcp_server_rx(&message) { if let Err(reason) = context.send_to_handler(rmcp_msg).await { break reason; } @@ -212,35 +251,71 @@ impl Worker for NostrClientWorker { } impl NostrServerWorker { - async fn forward_server_internal(&self, message: JsonRpcMessage) -> Result<()> { + async fn forward_server_internal(&mut self, message: JsonRpcMessage) -> Result<()> { match message { JsonRpcMessage::Response(resp) => { - let event_id = resp.id.as_str().map(str::to_owned).ok_or_else(|| { - crate::core::error::Error::Validation( - "rmcp server response id must be a string event id".to_string(), - ) + let request_key = serde_json::to_string(&resp.id).map_err(|e| { + crate::core::error::Error::Validation(format!( + "failed to serialize rmcp response id for correlation lookup: {e}" + )) })?; + + let event_id = if let Some(event_id) = self.request_id_to_event_id.remove(&request_key) { + event_id + } else { + resp.id.as_str().map(str::to_owned).ok_or_else(|| { + crate::core::error::Error::Validation( + "rmcp server response id has no known correlation mapping and is not a string event id" + .to_string(), + ) + })? + }; + self.transport .send_response(&event_id, JsonRpcMessage::Response(resp)) .await } JsonRpcMessage::ErrorResponse(resp) => { - let event_id = resp.id.as_str().map(str::to_owned).ok_or_else(|| { - crate::core::error::Error::Validation( - "rmcp server error response id must be a string event id".to_string(), - ) + let request_key = serde_json::to_string(&resp.id).map_err(|e| { + crate::core::error::Error::Validation(format!( + "failed to serialize rmcp error response id for correlation lookup: {e}" + )) })?; + + let event_id = if let Some(event_id) = self.request_id_to_event_id.remove(&request_key) { + event_id + } else { + resp.id.as_str().map(str::to_owned).ok_or_else(|| { + crate::core::error::Error::Validation( + "rmcp server error response id has no known correlation mapping and is not a string event id" + .to_string(), + ) + })? + }; + self.transport .send_response(&event_id, JsonRpcMessage::ErrorResponse(resp)) .await } JsonRpcMessage::Notification(notification) => { + let target = self.active_client_pubkey.as_deref().ok_or_else(|| { + crate::core::error::Error::Validation( + "cannot forward rmcp server notification: no active client bound" + .to_string(), + ) + })?; let message = JsonRpcMessage::Notification(notification); - self.transport.broadcast_notification(&message).await + self.transport.send_notification(target, &message, None).await + } + JsonRpcMessage::Request(request) => { + let target = self.active_client_pubkey.as_deref().ok_or_else(|| { + crate::core::error::Error::Validation( + "cannot forward rmcp server request: no active client bound".to_string(), + ) + })?; + let message = JsonRpcMessage::Request(request); + self.transport.send_notification(target, &message, None).await } - JsonRpcMessage::Request(_) => Err(crate::core::error::Error::Validation( - "rmcp server worker cannot forward outbound request messages".to_string(), - )), } } } diff --git a/src/transport/client.rs b/src/transport/client.rs index 5a0255b..fbe4c42 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -17,7 +17,7 @@ use crate::core::types::*; use crate::encryption; use crate::relay::RelayPool; use crate::transport::base::BaseTransport; -use rmcp::model::ProtocolVersion; + /// Configuration for the client transport. pub struct NostrClientTransportConfig { @@ -134,10 +134,12 @@ impl NostrClientTransport { .send_mcp_message(message, &self.server_pubkey, CTXVM_MESSAGES_KIND, tags, None) .await?; - self.pending_requests - .write() - .await - .insert(event_id.to_hex()); + if matches!(message, JsonRpcMessage::Request(_)) { + self.pending_requests + .write() + .await + .insert(event_id.to_hex()); + } Ok(()) } @@ -154,7 +156,7 @@ impl NostrClientTransport { jsonrpc: "2.0".to_string(), id: request_id.clone(), result: serde_json::json!({ - "protocolVersion": ProtocolVersion::LATEST.to_string(), + "protocolVersion": crate::core::constants::MCP_PROTOCOL_VERSION, "serverInfo": { "name": "Emulated-Stateless-Server", "version": "1.0.0" @@ -277,7 +279,7 @@ mod tests { jsonrpc: "2.0".to_string(), id: request_id.clone(), result: serde_json::json!({ - "protocolVersion": ProtocolVersion::LATEST.to_string(), + "protocolVersion": crate::core::constants::MCP_PROTOCOL_VERSION, "serverInfo": { "name": "Emulated-Stateless-Server", "version": "1.0.0" diff --git a/src/transport/server.rs b/src/transport/server.rs index c6483a6..d45e1f9 100644 --- a/src/transport/server.rs +++ b/src/transport/server.rs @@ -395,6 +395,55 @@ impl NostrServerTransport { Ok(()) } + /// Publish tools list from rmcp typed tool descriptors. + #[cfg(feature = "rmcp")] + pub async fn publish_tools_typed(&self, tools: Vec) -> Result { + let tools = tools + .into_iter() + .map(serde_json::to_value) + .collect::, _>>()?; + self.publish_tools(tools).await + } + + /// Publish resources list from rmcp typed resource descriptors. + #[cfg(feature = "rmcp")] + pub async fn publish_resources_typed( + &self, + resources: Vec, + ) -> Result { + let resources = resources + .into_iter() + .map(serde_json::to_value) + .collect::, _>>()?; + self.publish_resources(resources).await + } + + /// Publish prompts list from rmcp typed prompt descriptors. + #[cfg(feature = "rmcp")] + pub async fn publish_prompts_typed( + &self, + prompts: Vec, + ) -> Result { + let prompts = prompts + .into_iter() + .map(serde_json::to_value) + .collect::, _>>()?; + self.publish_prompts(prompts).await + } + + /// Publish resource templates list from rmcp typed template descriptors. + #[cfg(feature = "rmcp")] + pub async fn publish_resource_templates_typed( + &self, + templates: Vec, + ) -> Result { + let templates = templates + .into_iter() + .map(serde_json::to_value) + .collect::, _>>()?; + self.publish_resource_templates(templates).await + } + // ── Internal ──────────────────────────────────────────────── fn is_capability_excluded( From 5505e3708b7e17b5237cc762ab3e0256253f7e90 Mon Sep 17 00:00:00 2001 From: Kushagra Date: Fri, 3 Apr 2026 20:48:18 +0530 Subject: [PATCH 008/116] fix: fixed duplicate dependency warning --- Cargo.toml | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/Cargo.toml b/Cargo.toml index 6b73c7d..0ca4b98 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -23,7 +23,6 @@ nostr-sdk = { version = "0.43", features = ["nip59"] } # Logging tracing = "0.1" -rmcp = "1.3.0" # Optional MCP integration (Rust equivalent to TS @modelcontextprotocol/sdk) rmcp = { version = "0.16.0", features = ["server", "client", "macros", "transport-worker"], optional = true } @@ -35,4 +34,6 @@ rmcp = ["dep:rmcp"] [dev-dependencies] tokio-test = "0.4" -tracing-subscriber = "0.3" +tracing-subscriber = { version = "0.3", features = ["env-filter"] } +anyhow = "1" +schemars = "0.8" From d3d9a2fe7a3d32bfd73c3acf08f1bf1f6113dbd9 Mon Sep 17 00:00:00 2001 From: Akhil Dhyani Date: Fri, 3 Apr 2026 22:49:02 +0530 Subject: [PATCH 009/116] feat(rmcp): add typed discovery and client service integration - Implement discover_*_typed methods to parse Nostr discovery events into rmcp models - Add NostrMCPProxy::serve_client_handler to support rmcp client handler integration - Add parse_typed_list internal helper for discovery result deserialization --- src/discovery/mod.rs | 60 +++++++++++++++++++++++++++++++++++++++++++- src/proxy/mod.rs | 28 ++++++++++++++++++++- 2 files changed, 86 insertions(+), 2 deletions(-) diff --git a/src/discovery/mod.rs b/src/discovery/mod.rs index eb0e876..e198674 100644 --- a/src/discovery/mod.rs +++ b/src/discovery/mod.rs @@ -120,6 +120,50 @@ pub async fn discover_resource_templates( .await } +/// Discover tools and parse them into rmcp typed descriptors. +#[cfg(feature = "rmcp")] +pub async fn discover_tools_typed( + client: &Arc, + server_pubkey: &PublicKey, + relay_urls: &[String], +) -> Result> { + let raw = discover_tools(client, server_pubkey, relay_urls).await?; + parse_typed_list(raw) +} + +/// Discover resources and parse them into rmcp typed descriptors. +#[cfg(feature = "rmcp")] +pub async fn discover_resources_typed( + client: &Arc, + server_pubkey: &PublicKey, + relay_urls: &[String], +) -> Result> { + let raw = discover_resources(client, server_pubkey, relay_urls).await?; + parse_typed_list(raw) +} + +/// Discover prompts and parse them into rmcp typed descriptors. +#[cfg(feature = "rmcp")] +pub async fn discover_prompts_typed( + client: &Arc, + server_pubkey: &PublicKey, + relay_urls: &[String], +) -> Result> { + let raw = discover_prompts(client, server_pubkey, relay_urls).await?; + parse_typed_list(raw) +} + +/// Discover resource templates and parse them into rmcp typed descriptors. +#[cfg(feature = "rmcp")] +pub async fn discover_resource_templates_typed( + client: &Arc, + server_pubkey: &PublicKey, + relay_urls: &[String], +) -> Result> { + let raw = discover_resource_templates(client, server_pubkey, relay_urls).await?; + parse_typed_list(raw) +} + // ── Internal ──────────────────────────────────────────────────────── async fn fetch_list( @@ -153,6 +197,20 @@ async fn fetch_list( .unwrap_or_default()) } +#[cfg(feature = "rmcp")] +fn parse_typed_list(raw: Vec) -> Result> +where + T: serde::de::DeserializeOwned, +{ + let mut parsed = Vec::new(); + for item in raw { + let value = serde_json::from_value(item) + .map_err(|e| Error::Other(format!("Failed to parse typed discovery item: {e}")))?; + parsed.push(value); + } + Ok(parsed) +} + #[cfg(test)] mod tests { use super::*; @@ -229,4 +287,4 @@ mod tests { assert_eq!(announcement.pubkey, pubkey.to_hex()); assert_eq!(announcement.server_info.name, Some("Test".to_string())); } -} +} \ No newline at end of file diff --git a/src/proxy/mod.rs b/src/proxy/mod.rs index fab56d7..d7b75f5 100644 --- a/src/proxy/mod.rs +++ b/src/proxy/mod.rs @@ -70,6 +70,32 @@ impl NostrMCPProxy { } } +#[cfg(feature = "rmcp")] +impl NostrMCPProxy { + /// Start a proxy directly from an rmcp client handler. + /// + /// This additive API keeps the existing `new/start/send` flow intact, + /// while allowing rmcp-first usage through the worker adapter. + pub async fn serve_client_handler( + signer: T, + config: ProxyConfig, + handler: H, + ) -> Result> + where + T: nostr_sdk::prelude::IntoNostrSigner, + H: rmcp::ClientHandler, + { + use crate::rmcp_transport::NostrClientWorker; + use rmcp::ServiceExt; + + let worker = NostrClientWorker::new(signer, config.nostr_config).await?; + handler + .serve(worker) + .await + .map_err(|e| Error::Other(format!("rmcp client initialization failed: {e}"))) + } +} + #[cfg(test)] mod tests { use super::*; @@ -107,4 +133,4 @@ mod tests { assert!(!config.nostr_config.is_stateless); assert_eq!(config.nostr_config.encryption_mode, EncryptionMode::Optional); } -} +} \ No newline at end of file From 84911d7a81f374024778a9ec1f60085ff91737a6 Mon Sep 17 00:00:00 2001 From: Akhil Dhyani Date: Sat, 4 Apr 2026 02:17:06 +0530 Subject: [PATCH 010/116] feat: add rmcp integration test example Adds an integration test matrix for RMCP transport, covering local, hybrid, and full relay-based communication scenarios. --- examples/rmcp_integration_test.rs | 726 ++++++++++++++++++++++++++++++ 1 file changed, 726 insertions(+) create mode 100644 examples/rmcp_integration_test.rs diff --git a/examples/rmcp_integration_test.rs b/examples/rmcp_integration_test.rs new file mode 100644 index 0000000..75990ba --- /dev/null +++ b/examples/rmcp_integration_test.rs @@ -0,0 +1,726 @@ +//! Comprehensive rmcp integration matrix for ContextVM SDK. +//! +//! This example validates three scenarios: +//! 1) local rmcp transport (in-process duplex) +//! 2) hybrid relay mode (rmcp server + legacy JSON-RPC client) +//! 3) full rmcp over relays (rmcp server + rmcp client) +//! +//! Run: +//! cargo run --example rmcp_integration_test --features rmcp +//! cargo run --example rmcp_integration_test --features rmcp -- local +//! cargo run --example rmcp_integration_test --features rmcp -- hybrid +//! cargo run --example rmcp_integration_test --features rmcp -- relay-rmcp +//! cargo run --example rmcp_integration_test --features rmcp -- all +//! +//! Optional relay override: +//! CTXVM_RELAY_URL=wss://relay.primal.net cargo run --example rmcp_integration_test --features rmcp -- all +//! cargo run --example rmcp_integration_test --features rmcp -- all wss://relay.primal.net + +use anyhow::{anyhow, bail, Context, Result}; +use contextvm_sdk::core::constants::MCP_PROTOCOL_VERSION; +use contextvm_sdk::core::types::{ + EncryptionMode, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, ServerInfo as CtxServerInfo, +}; +use contextvm_sdk::gateway::{GatewayConfig, NostrMCPGateway}; +use contextvm_sdk::proxy::{NostrMCPProxy, ProxyConfig}; +use contextvm_sdk::signer; +use contextvm_sdk::transport::client::NostrClientTransportConfig; +use contextvm_sdk::transport::server::NostrServerTransportConfig; +use rmcp::{ + handler::server::wrapper::Parameters, + model::*, + schemars, + service::RequestContext, + tool, tool_handler, tool_router, ClientHandler, RoleServer, ServerHandler, ServiceExt, +}; +use std::sync::Arc; +use std::time::Duration; +use tokio::sync::Mutex; +use tokio::time::{sleep, timeout}; + +const DEFAULT_RELAY_URL: &str = "wss://relay.primal.net"; +const IO_TIMEOUT: Duration = Duration::from_secs(30); +const RELAY_WARMUP: Duration = Duration::from_secs(2); +const STARTUP_TIMEOUT: Duration = Duration::from_secs(20); + +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +enum Mode { + Local, + Hybrid, + RelayRmcp, + All, +} + +impl Mode { + fn parse(value: Option<&str>) -> Result { + match value.unwrap_or("all") { + "local" => Ok(Self::Local), + "hybrid" => Ok(Self::Hybrid), + "relay-rmcp" => Ok(Self::RelayRmcp), + "all" => Ok(Self::All), + other => bail!( + "Unknown mode '{other}'. Use one of: local | hybrid | relay-rmcp | all" + ), + } + } + + fn run_local(self) -> bool { + matches!(self, Self::Local | Self::All) + } + + fn run_hybrid(self) -> bool { + matches!(self, Self::Hybrid | Self::All) + } + + fn run_relay_rmcp(self) -> bool { + matches!(self, Self::RelayRmcp | Self::All) + } +} + +// Parameter structs with JSON schema for tools/list. +#[derive(Debug, serde::Deserialize, schemars::JsonSchema)] +struct EchoParams { + message: String, +} + +#[derive(Debug, serde::Deserialize, schemars::JsonSchema)] +struct AddParams { + a: i64, + b: i64, +} + +use rmcp::handler::server::router::tool::ToolRouter; + +#[derive(Clone)] +struct DemoServer { + echo_count: Arc>, + tool_router: ToolRouter, +} + +impl DemoServer { + fn new() -> Self { + Self { + echo_count: Arc::new(Mutex::new(0)), + tool_router: Self::tool_router(), + } + } +} + +#[tool_router] +impl DemoServer { + #[tool(description = "Echo a message back unchanged")] + async fn echo( + &self, + Parameters(EchoParams { message }): Parameters, + ) -> Result { + let mut n = self.echo_count.lock().await; + *n += 1; + Ok(CallToolResult::success(vec![Content::text(format!( + "Echo #{n}: {message}" + ))])) + } + + #[tool(description = "Add two integers and return their sum")] + fn add( + &self, + Parameters(AddParams { a, b }): Parameters, + ) -> Result { + Ok(CallToolResult::success(vec![Content::text(format!( + "{a} + {b} = {}", + a + b + ))])) + } + + #[tool(description = "Return the total number of echo calls made so far")] + async fn get_echo_count(&self) -> Result { + let n = self.echo_count.lock().await; + Ok(CallToolResult::success(vec![Content::text(format!( + "Total echo calls: {n}" + ))])) + } +} + +#[tool_handler] +impl ServerHandler for DemoServer { + fn get_info(&self) -> ServerInfo { + ServerInfo { + protocol_version: ProtocolVersion::LATEST, + capabilities: ServerCapabilities::builder() + .enable_tools() + .enable_resources() + .build(), + server_info: Implementation { + name: "contextvm-demo".to_string(), + title: Some("ContextVM Demo Server".to_string()), + version: "0.1.0".to_string(), + description: Some("Demonstrates rmcp integration over ContextVM".to_string()), + icons: None, + website_url: None, + }, + instructions: Some("Try: echo, add, get_echo_count".to_string()), + } + } + + async fn list_resources( + &self, + _req: Option, + _ctx: RequestContext, + ) -> Result { + Ok(ListResourcesResult { + resources: vec![ + RawResource::new("demo://readme", "Demo README".to_string()).no_annotation(), + ], + next_cursor: None, + meta: None, + }) + } + + async fn read_resource( + &self, + req: ReadResourceRequestParams, + _ctx: RequestContext, + ) -> Result { + match req.uri.as_str() { + "demo://readme" => Ok(ReadResourceResult { + contents: vec![ResourceContents::text( + "This server demonstrates the ContextVM rmcp integration.", + req.uri, + )], + }), + other => Err(ErrorData::resource_not_found( + "not_found", + Some(serde_json::json!({ "uri": other })), + )), + } + } +} + +#[derive(Clone, Default)] +struct DemoClient; +impl ClientHandler for DemoClient {} + +#[derive(Clone, Default)] +struct RelayRmcpClient; +impl ClientHandler for RelayRmcpClient {} + +#[tokio::main] +async fn main() -> Result<()> { + tracing_subscriber::fmt() + .with_env_filter( + tracing_subscriber::EnvFilter::from_default_env() + .add_directive("rmcp=warn".parse()?) + .add_directive("contextvm_sdk=info".parse()?), + ) + .init(); + + let args: Vec = std::env::args().skip(1).collect(); + let mode = Mode::parse(args.first().map(String::as_str))?; + let relay_url = args + .get(1) + .cloned() + .or_else(|| std::env::var("CTXVM_RELAY_URL").ok()) + .unwrap_or_else(|| DEFAULT_RELAY_URL.to_string()); + + println!("========================================"); + println!("ContextVM SDK rmcp integration matrix"); + println!("mode: {:?}", mode); + println!("relay: {relay_url}"); + println!("========================================\n"); + + if mode.run_local() { + run_local_rmcp_case().await?; + } + + if mode.run_hybrid() { + run_hybrid_relay_case(&relay_url).await?; + } + + if mode.run_relay_rmcp() { + run_relay_rmcp_case(&relay_url).await?; + } + + println!("\nAll selected integration scenarios passed."); + Ok(()) +} + +async fn run_local_rmcp_case() -> Result<()> { + println!("[local-rmcp] start"); + + let (server_io, client_io) = tokio::io::duplex(65536); + + let server_handle = tokio::spawn(async move { + DemoServer::new() + .serve(server_io) + .await + .expect("server serve failed") + .waiting() + .await + .expect("server error"); + }); + + let client = DemoClient.serve(client_io).await?; + + let tools = client.list_all_tools().await?; + assert_eq!(tools.len(), 3, "expected 3 tools in local rmcp case"); + + let add_result = client + .call_tool(call_params( + "add", + Some(serde_json::json!({ "a": 7, "b": 5 })), + )) + .await?; + let add_text = first_text(&add_result); + assert!(add_text.contains("12"), "expected add result to include 12"); + + let resources = client.list_all_resources().await?; + assert_eq!(resources.len(), 1, "expected one resource in local rmcp case"); + + match client.call_tool(call_params("no_such_tool", None)).await { + Err(_) => {} + Ok(r) if r.is_error.unwrap_or(false) => {} + Ok(_) => bail!("expected unknown tool to fail in local rmcp case"), + } + + client.cancel().await?; + server_handle.abort(); + + println!("[local-rmcp] pass"); + Ok(()) +} + +async fn run_hybrid_relay_case(relay_url: &str) -> Result<()> { + println!("[relay-hybrid] start (rmcp server + legacy client)"); + + let server_keys = signer::generate(); + let server_pubkey_hex = server_keys.public_key().to_hex(); + + println!("[relay-hybrid] stage: spawning rmcp server task"); + let relay_url_owned = relay_url.to_string(); + let server_task = tokio::spawn(async move { + let server = NostrMCPGateway::serve_handler( + server_keys, + server_config(&relay_url_owned), + DemoServer::new(), + ) + .await + .with_context(|| { + format!("failed to start rmcp server on relay {relay_url_owned}") + })?; + + let _ = server + .waiting() + .await + .map_err(|e| anyhow!("rmcp server exited with error: {e}"))?; + + Err(anyhow!("rmcp server stopped unexpectedly")) + }); + + sleep(RELAY_WARMUP).await; + + if server_task.is_finished() { + let res = server_task + .await + .map_err(|e| anyhow!("rmcp server task join error: {e}"))?; + return res.context("rmcp server task ended before client startup"); + } + + let outcome: Result<()> = async { + println!("[relay-hybrid] stage: creating legacy proxy client"); + + let mut proxy = timeout( + STARTUP_TIMEOUT, + NostrMCPProxy::new( + signer::generate(), + client_config(relay_url, server_pubkey_hex.clone()), + ), + ) + .await + .with_context(|| { + format!( + "timed out creating legacy proxy client after {:?}", + STARTUP_TIMEOUT + ) + })? + .context("failed to create legacy proxy client")?; + + println!("[relay-hybrid] stage: starting legacy proxy transport"); + let mut rx = timeout(STARTUP_TIMEOUT, proxy.start()) + .await + .with_context(|| { + format!( + "timed out starting legacy proxy transport after {:?}", + STARTUP_TIMEOUT + ) + })? + .context("failed to start legacy proxy")?; + println!("[relay-hybrid] stage: legacy proxy started"); + + let init_id = serde_json::json!(1); + let init_request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: init_id.clone(), + method: "initialize".to_string(), + params: Some(serde_json::json!({ + "protocolVersion": MCP_PROTOCOL_VERSION, + "capabilities": { + "tools": {}, + "resources": {} + }, + "clientInfo": { + "name": "legacy-hybrid-client", + "version": "0.1.0" + } + })), + }); + + let init_response = + send_legacy_request_and_wait(&proxy, &mut rx, init_request, &init_id).await?; + assert_initialize_shape(&init_response)?; + + proxy + .send(&JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/initialized".to_string(), + params: None, + })) + .await + .context("failed to send initialized notification")?; + + let tools_id = serde_json::json!(2); + let tools_request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: tools_id.clone(), + method: "tools/list".to_string(), + params: Some(serde_json::json!({})), + }); + + let tools_response = + send_legacy_request_and_wait(&proxy, &mut rx, tools_request, &tools_id).await?; + let tools = extract_tools_list(&tools_response)?; + assert!( + tools + .iter() + .any(|t| t.get("name") == Some(&serde_json::json!("echo"))), + "expected echo tool in hybrid case" + ); + + let call_id = serde_json::json!(3); + let call_request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: call_id.clone(), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ + "name": "echo", + "arguments": { "message": "legacy-client-hello" } + })), + }); + + let call_response = send_legacy_request_and_wait(&proxy, &mut rx, call_request, &call_id) + .await + .context("tools/call failed in hybrid case")?; + let echo_text = extract_first_content_text(&call_response)?; + assert!( + echo_text.contains("legacy-client-hello"), + "unexpected echo output in hybrid case: {echo_text}" + ); + + let unknown_id = serde_json::json!(4); + let unknown_request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: unknown_id.clone(), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ + "name": "no_such_tool", + "arguments": {} + })), + }); + + let unknown_response = + send_legacy_request_and_wait(&proxy, &mut rx, unknown_request, &unknown_id).await?; + assert_error_response(&unknown_response)?; + + proxy.stop().await.context("failed to stop legacy proxy")?; + + Ok(()) + } + .await; + + server_task.abort(); + + if server_task.is_finished() { + let _ = server_task.await; + } + + outcome?; + + println!("[relay-hybrid] pass"); + Ok(()) +} + +async fn run_relay_rmcp_case(relay_url: &str) -> Result<()> { + println!("[relay-rmcp] start (rmcp server + rmcp client)"); + + let server_keys = signer::generate(); + let server_pubkey_hex = server_keys.public_key().to_hex(); + + println!("[relay-rmcp] stage: spawning rmcp server task"); + let relay_url_owned = relay_url.to_string(); + let server_task = tokio::spawn(async move { + let server = NostrMCPGateway::serve_handler( + server_keys, + server_config(&relay_url_owned), + DemoServer::new(), + ) + .await + .with_context(|| { + format!("failed to start rmcp server on relay {relay_url_owned}") + })?; + + let _ = server + .waiting() + .await + .map_err(|e| anyhow!("rmcp server exited with error: {e}"))?; + + Err(anyhow!("rmcp server stopped unexpectedly")) + }); + + sleep(RELAY_WARMUP).await; + + if server_task.is_finished() { + let res = server_task + .await + .map_err(|e| anyhow!("rmcp server task join error: {e}"))?; + return res.context("rmcp server task ended before rmcp client startup"); + } + + let outcome: Result<()> = async { + println!("[relay-rmcp] stage: starting rmcp relay client worker"); + + let client = timeout( + STARTUP_TIMEOUT, + NostrMCPProxy::serve_client_handler( + signer::generate(), + client_config(relay_url, server_pubkey_hex), + RelayRmcpClient, + ), + ) + .await + .with_context(|| { + format!( + "timed out starting rmcp relay client worker after {:?}", + STARTUP_TIMEOUT + ) + })? + .context("failed to start rmcp relay client")?; + println!("[relay-rmcp] stage: rmcp relay client started"); + + let peer = client + .peer_info() + .ok_or_else(|| anyhow!("rmcp relay client did not receive peer info"))?; + let negotiated = peer.protocol_version.to_string(); + assert!( + is_supported_protocol(&negotiated), + "unexpected negotiated protocol version: {negotiated}" + ); + + let tools = client.list_all_tools().await?; + assert!( + tools.iter().any(|t| t.name == "echo"), + "expected echo tool in rmcp relay case" + ); + + let echo = client + .call_tool(call_params( + "echo", + Some(serde_json::json!({ "message": "rmcp-relay-hello" })), + )) + .await?; + let echo_text = first_text(&echo); + assert!( + echo_text.contains("rmcp-relay-hello"), + "unexpected rmcp relay echo output: {echo_text}" + ); + + let resources = client.list_all_resources().await?; + assert!( + resources.iter().any(|r| r.uri.as_str() == "demo://readme"), + "expected demo://readme resource in rmcp relay case" + ); + + match client.call_tool(call_params("no_such_tool", None)).await { + Err(_) => {} + Ok(r) if r.is_error.unwrap_or(false) => {} + Ok(_) => bail!("expected unknown tool to fail in rmcp relay case"), + } + + client + .cancel() + .await + .context("failed to cancel rmcp relay client")?; + + Ok(()) + } + .await; + + server_task.abort(); + + if server_task.is_finished() { + let _ = server_task.await; + } + + outcome?; + + println!("[relay-rmcp] pass"); + Ok(()) +} + +fn server_config(relay_url: &str) -> GatewayConfig { + GatewayConfig { + nostr_config: NostrServerTransportConfig { + relay_urls: vec![relay_url.to_string()], + encryption_mode: EncryptionMode::Optional, + server_info: Some(CtxServerInfo { + name: Some("rmcp-matrix-server".to_string()), + about: Some("rmcp matrix coverage server".to_string()), + ..Default::default() + }), + is_announced_server: false, + ..Default::default() + }, + } +} + +fn client_config(relay_url: &str, server_pubkey: String) -> ProxyConfig { + ProxyConfig { + nostr_config: NostrClientTransportConfig { + relay_urls: vec![relay_url.to_string()], + server_pubkey, + encryption_mode: EncryptionMode::Optional, + ..Default::default() + }, + } +} + +async fn send_legacy_request_and_wait( + proxy: &NostrMCPProxy, + rx: &mut tokio::sync::mpsc::UnboundedReceiver, + request: JsonRpcMessage, + expected_id: &serde_json::Value, +) -> Result { + proxy.send(&request).await?; + + loop { + let maybe_msg = timeout(IO_TIMEOUT, rx.recv()) + .await + .context("timed out waiting for legacy response")?; + + let msg = maybe_msg.ok_or_else(|| anyhow!("legacy response channel closed"))?; + + if msg.id() == Some(expected_id) { + return Ok(msg); + } + + if msg.is_notification() { + continue; + } + } +} + +fn extract_tools_list(response: &JsonRpcMessage) -> Result<&Vec> { + let JsonRpcMessage::Response(resp) = response else { + bail!("expected tools/list response, got {response:?}"); + }; + + resp.result + .get("tools") + .and_then(|v| v.as_array()) + .ok_or_else(|| anyhow!("tools/list response missing tools array")) +} + +fn extract_first_content_text(response: &JsonRpcMessage) -> Result { + let JsonRpcMessage::Response(resp) = response else { + bail!("expected tools/call response, got {response:?}"); + }; + + let text = resp + .result + .get("content") + .and_then(|v| v.as_array()) + .and_then(|items| items.first()) + .and_then(|item| item.get("text")) + .and_then(|text| text.as_str()) + .ok_or_else(|| anyhow!("tools/call response missing content[0].text"))?; + + Ok(text.to_string()) +} + +fn assert_initialize_shape(response: &JsonRpcMessage) -> Result<()> { + let JsonRpcMessage::Response(resp) = response else { + bail!("expected initialize response, got {response:?}"); + }; + + let protocol = resp + .result + .get("protocolVersion") + .and_then(|v| v.as_str()) + .ok_or_else(|| anyhow!("initialize response missing protocolVersion"))?; + + if !is_supported_protocol(protocol) { + bail!( + "unexpected protocolVersion in initialize response: expected one of [{MCP_PROTOCOL_VERSION}, {}], got {protocol}", + ProtocolVersion::LATEST + ); + } + + if resp.result.get("serverInfo").is_none() { + bail!("initialize response missing serverInfo"); + } + + Ok(()) +} + +fn is_supported_protocol(protocol: &str) -> bool { + protocol == MCP_PROTOCOL_VERSION || protocol == ProtocolVersion::LATEST.to_string() +} + +fn assert_error_response(response: &JsonRpcMessage) -> Result<()> { + match response { + JsonRpcMessage::ErrorResponse(err) => { + if err.error.code >= 0 { + bail!("expected negative JSON-RPC error code, got {}", err.error.code); + } + Ok(()) + } + JsonRpcMessage::Response(resp) => { + if resp.result.get("isError") == Some(&serde_json::json!(true)) { + Ok(()) + } else { + bail!("expected error response but received success result") + } + } + _ => bail!("expected error response, got {response:?}"), + } +} + +fn call_params(name: &'static str, args: Option) -> CallToolRequestParams { + CallToolRequestParams { + name: name.into(), + arguments: args.and_then(|v| serde_json::from_value(v).ok()), + meta: None, + task: None, + } +} + +fn first_text(result: &CallToolResult) -> String { + result + .content + .iter() + .find_map(|content| { + if let RawContent::Text(t) = &content.raw { + Some(t.text.clone()) + } else { + None + } + }) + .unwrap_or_default() +} \ No newline at end of file From 61da0162424dd2071f34d8b45dcbbfa4139283d5 Mon Sep 17 00:00:00 2001 From: Akhil Dhyani Date: Sat, 4 Apr 2026 16:52:05 +0530 Subject: [PATCH 011/116] chore: cargo formatting fixes --- examples/discovery.rs | 3 +- examples/proxy.rs | 5 +- examples/rmcp_integration_test.rs | 71 ++-- src/core/constants.rs | 1 - src/core/serializers.rs | 2 +- src/discovery/mod.rs | 13 +- src/encryption/mod.rs | 18 +- src/gateway/mod.rs | 31 +- src/proxy/mod.rs | 21 +- src/rmcp_transport/mod.rs | 4 +- src/rmcp_transport/pipeline_tests.rs | 48 +-- src/rmcp_transport/worker.rs | 560 ++++++++++++++------------- src/transport/base.rs | 76 +++- src/transport/client.rs | 76 ++-- src/transport/server.rs | 254 +++++++----- 15 files changed, 668 insertions(+), 515 deletions(-) diff --git a/examples/discovery.rs b/examples/discovery.rs index 166cb3f..edff853 100644 --- a/examples/discovery.rs +++ b/examples/discovery.rs @@ -53,8 +53,7 @@ async fn main() -> contextvm_sdk::Result<()> { println!(" Resources: {} found", resources.len()); } - let prompts = - discovery::discover_prompts(client, &server.pubkey_parsed, &relays).await?; + let prompts = discovery::discover_prompts(client, &server.pubkey_parsed, &relays).await?; if !prompts.is_empty() { println!(" Prompts: {} found", prompts.len()); } diff --git a/examples/proxy.rs b/examples/proxy.rs index a10663a..c0fcd55 100644 --- a/examples/proxy.rs +++ b/examples/proxy.rs @@ -42,7 +42,10 @@ async fn main() -> contextvm_sdk::Result<()> { // Wait for response if let Some(response) = rx.recv().await { - println!("Response: {}", serde_json::to_string_pretty(&response).unwrap()); + println!( + "Response: {}", + serde_json::to_string_pretty(&response).unwrap() + ); } proxy.stop().await?; diff --git a/examples/rmcp_integration_test.rs b/examples/rmcp_integration_test.rs index 75990ba..c9656ef 100644 --- a/examples/rmcp_integration_test.rs +++ b/examples/rmcp_integration_test.rs @@ -19,7 +19,8 @@ use anyhow::{anyhow, bail, Context, Result}; use contextvm_sdk::core::constants::MCP_PROTOCOL_VERSION; use contextvm_sdk::core::types::{ - EncryptionMode, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, ServerInfo as CtxServerInfo, + EncryptionMode, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, + ServerInfo as CtxServerInfo, }; use contextvm_sdk::gateway::{GatewayConfig, NostrMCPGateway}; use contextvm_sdk::proxy::{NostrMCPProxy, ProxyConfig}; @@ -27,11 +28,8 @@ use contextvm_sdk::signer; use contextvm_sdk::transport::client::NostrClientTransportConfig; use contextvm_sdk::transport::server::NostrServerTransportConfig; use rmcp::{ - handler::server::wrapper::Parameters, - model::*, - schemars, - service::RequestContext, - tool, tool_handler, tool_router, ClientHandler, RoleServer, ServerHandler, ServiceExt, + handler::server::wrapper::Parameters, model::*, schemars, service::RequestContext, tool, + tool_handler, tool_router, ClientHandler, RoleServer, ServerHandler, ServiceExt, }; use std::sync::Arc; use std::time::Duration; @@ -58,9 +56,7 @@ impl Mode { "hybrid" => Ok(Self::Hybrid), "relay-rmcp" => Ok(Self::RelayRmcp), "all" => Ok(Self::All), - other => bail!( - "Unknown mode '{other}'. Use one of: local | hybrid | relay-rmcp | all" - ), + other => bail!("Unknown mode '{other}'. Use one of: local | hybrid | relay-rmcp | all"), } } @@ -168,7 +164,7 @@ impl ServerHandler for DemoServer { ) -> Result { Ok(ListResourcesResult { resources: vec![ - RawResource::new("demo://readme", "Demo README".to_string()).no_annotation(), + RawResource::new("demo://readme", "Demo README".to_string()).no_annotation() ], next_cursor: None, meta: None, @@ -273,7 +269,11 @@ async fn run_local_rmcp_case() -> Result<()> { assert!(add_text.contains("12"), "expected add result to include 12"); let resources = client.list_all_resources().await?; - assert_eq!(resources.len(), 1, "expected one resource in local rmcp case"); + assert_eq!( + resources.len(), + 1, + "expected one resource in local rmcp case" + ); match client.call_tool(call_params("no_such_tool", None)).await { Err(_) => {} @@ -303,9 +303,7 @@ async fn run_hybrid_relay_case(relay_url: &str) -> Result<()> { DemoServer::new(), ) .await - .with_context(|| { - format!("failed to start rmcp server on relay {relay_url_owned}") - })?; + .with_context(|| format!("failed to start rmcp server on relay {relay_url_owned}"))?; let _ = server .waiting() @@ -355,23 +353,23 @@ async fn run_hybrid_relay_case(relay_url: &str) -> Result<()> { .context("failed to start legacy proxy")?; println!("[relay-hybrid] stage: legacy proxy started"); - let init_id = serde_json::json!(1); - let init_request = JsonRpcMessage::Request(JsonRpcRequest { - jsonrpc: "2.0".to_string(), - id: init_id.clone(), - method: "initialize".to_string(), - params: Some(serde_json::json!({ - "protocolVersion": MCP_PROTOCOL_VERSION, - "capabilities": { - "tools": {}, - "resources": {} - }, - "clientInfo": { - "name": "legacy-hybrid-client", - "version": "0.1.0" - } - })), - }); + let init_id = serde_json::json!(1); + let init_request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: init_id.clone(), + method: "initialize".to_string(), + params: Some(serde_json::json!({ + "protocolVersion": MCP_PROTOCOL_VERSION, + "capabilities": { + "tools": {}, + "resources": {} + }, + "clientInfo": { + "name": "legacy-hybrid-client", + "version": "0.1.0" + } + })), + }); let init_response = send_legacy_request_and_wait(&proxy, &mut rx, init_request, &init_id).await?; @@ -472,9 +470,7 @@ async fn run_relay_rmcp_case(relay_url: &str) -> Result<()> { DemoServer::new(), ) .await - .with_context(|| { - format!("failed to start rmcp server on relay {relay_url_owned}") - })?; + .with_context(|| format!("failed to start rmcp server on relay {relay_url_owned}"))?; let _ = server .waiting() @@ -687,7 +683,10 @@ fn assert_error_response(response: &JsonRpcMessage) -> Result<()> { match response { JsonRpcMessage::ErrorResponse(err) => { if err.error.code >= 0 { - bail!("expected negative JSON-RPC error code, got {}", err.error.code); + bail!( + "expected negative JSON-RPC error code, got {}", + err.error.code + ); } Ok(()) } @@ -723,4 +722,4 @@ fn first_text(result: &CallToolResult) -> String { } }) .unwrap_or_default() -} \ No newline at end of file +} diff --git a/src/core/constants.rs b/src/core/constants.rs index 8aecf78..b7f8a8b 100644 --- a/src/core/constants.rs +++ b/src/core/constants.rs @@ -217,4 +217,3 @@ mod tests { assert!(!UNENCRYPTED_KINDS.contains(&EPHEMERAL_GIFT_WRAP_KIND)); } } - diff --git a/src/core/serializers.rs b/src/core/serializers.rs index 3d641fd..69c519c 100644 --- a/src/core/serializers.rs +++ b/src/core/serializers.rs @@ -50,7 +50,7 @@ pub fn get_tag_value_from_slice(tags: &[Tag], name: &str) -> Option { #[cfg(test)] mod tests { use super::*; - use crate::core::types::{JsonRpcRequest, JsonRpcMessage}; + use crate::core::types::{JsonRpcMessage, JsonRpcRequest}; #[test] fn test_roundtrip() { diff --git a/src/discovery/mod.rs b/src/discovery/mod.rs index e198674..d5ffa3a 100644 --- a/src/discovery/mod.rs +++ b/src/discovery/mod.rs @@ -64,8 +64,7 @@ pub async fn discover_servers( let mut announcements = Vec::new(); for event in events { - let server_info: ServerInfo = - serde_json::from_str(&event.content).unwrap_or_default(); + let server_info: ServerInfo = serde_json::from_str(&event.content).unwrap_or_default(); announcements.push(ServerAnnouncement { pubkey: event.pubkey.to_hex(), pubkey_parsed: event.pubkey, @@ -233,7 +232,10 @@ mod tests { assert_eq!(parsed.version, Some("1.0.0".to_string())); assert_eq!(parsed.about, Some("A test MCP server".to_string())); assert_eq!(parsed.website, Some("https://example.com".to_string())); - assert_eq!(parsed.picture, Some("https://example.com/pic.png".to_string())); + assert_eq!( + parsed.picture, + Some("https://example.com/pic.png".to_string()) + ); } #[test] @@ -280,11 +282,12 @@ mod tests { }, event_id: EventId::from_hex( "0000000000000000000000000000000000000000000000000000000000000001", - ).unwrap(), + ) + .unwrap(), created_at: Timestamp::now(), }; assert_eq!(announcement.pubkey, pubkey.to_hex()); assert_eq!(announcement.server_info.name, Some("Test".to_string())); } -} \ No newline at end of file +} diff --git a/src/encryption/mod.rs b/src/encryption/mod.rs index dadf331..d5171e0 100644 --- a/src/encryption/mod.rs +++ b/src/encryption/mod.rs @@ -43,10 +43,7 @@ where /// - The gift wrap event has NIP-44 encrypted content (single layer) /// - Decrypt using recipient's key + event's pubkey (ephemeral sender) /// - Returns the decrypted plaintext content string -pub async fn decrypt_gift_wrap_single_layer( - signer: &T, - event: &Event, -) -> Result +pub async fn decrypt_gift_wrap_single_layer(signer: &T, event: &Event) -> Result where T: NostrSigner, { @@ -73,8 +70,8 @@ where let encrypted = encrypt_nip44(&ephemeral, recipient, plaintext).await?; - let builder = EventBuilder::new(Kind::Custom(GIFT_WRAP_KIND), encrypted) - .tag(Tag::public_key(*recipient)); + let builder = + EventBuilder::new(Kind::Custom(GIFT_WRAP_KIND), encrypted).tag(Tag::public_key(*recipient)); builder .sign_with_keys(&ephemeral) @@ -142,10 +139,7 @@ mod tests { /// 2. NIP-44 encrypt the plaintext using ephemeral_secret + recipient_pubkey /// 3. Build kind 1059 event with encrypted content, `p` tag = recipient /// 4. Sign with ephemeral key - async fn create_js_style_gift_wrap( - plaintext: &str, - recipient: &PublicKey, - ) -> (Event, Keys) { + async fn create_js_style_gift_wrap(plaintext: &str, recipient: &PublicKey) -> (Event, Keys) { let ephemeral = Keys::generate(); // Single-layer NIP-44 encrypt @@ -154,8 +148,8 @@ mod tests { .unwrap(); // Build kind 1059 event - let builder = EventBuilder::new(Kind::Custom(1059), encrypted) - .tag(Tag::public_key(*recipient)); + let builder = + EventBuilder::new(Kind::Custom(1059), encrypted).tag(Tag::public_key(*recipient)); let event = builder.sign_with_keys(&ephemeral).unwrap(); (event, ephemeral) diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index 345f2b3..427b48f 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -40,9 +40,7 @@ impl NostrMCPGateway { /// /// The caller is responsible for processing requests and calling /// `send_response` for each one. - pub async fn start( - &mut self, - ) -> Result> { + pub async fn start(&mut self) -> Result> { if self.is_running { return Err(Error::Other("Gateway already running".to_string())); } @@ -133,11 +131,27 @@ mod tests { let config = GatewayConfig { nostr_config }; - assert_eq!(config.nostr_config.relay_urls, vec!["wss://relay.example.com"]); - assert_eq!(config.nostr_config.encryption_mode, EncryptionMode::Required); + assert_eq!( + config.nostr_config.relay_urls, + vec!["wss://relay.example.com"] + ); + assert_eq!( + config.nostr_config.encryption_mode, + EncryptionMode::Required + ); assert!(config.nostr_config.is_announced_server); assert_eq!(config.nostr_config.allowed_public_keys.len(), 1); - assert!(config.nostr_config.server_info.as_ref().unwrap().name.as_ref().unwrap() == "Test Gateway"); + assert!( + config + .nostr_config + .server_info + .as_ref() + .unwrap() + .name + .as_ref() + .unwrap() + == "Test Gateway" + ); } #[test] @@ -145,7 +159,10 @@ mod tests { let config = GatewayConfig { nostr_config: NostrServerTransportConfig::default(), }; - assert_eq!(config.nostr_config.encryption_mode, EncryptionMode::Optional); + assert_eq!( + config.nostr_config.encryption_mode, + EncryptionMode::Optional + ); assert!(!config.nostr_config.is_announced_server); } } diff --git a/src/proxy/mod.rs b/src/proxy/mod.rs index d7b75f5..25fc2a8 100644 --- a/src/proxy/mod.rs +++ b/src/proxy/mod.rs @@ -34,9 +34,7 @@ impl NostrMCPProxy { } /// Start the proxy. Returns a receiver for incoming responses/notifications. - pub async fn start( - &mut self, - ) -> Result> { + pub async fn start(&mut self) -> Result> { if self.is_running { return Err(Error::Other("Proxy already running".to_string())); } @@ -118,9 +116,15 @@ mod tests { let config = ProxyConfig { nostr_config }; - assert_eq!(config.nostr_config.relay_urls, vec!["wss://relay.example.com"]); + assert_eq!( + config.nostr_config.relay_urls, + vec!["wss://relay.example.com"] + ); assert_eq!(config.nostr_config.server_pubkey, server_pubkey); - assert_eq!(config.nostr_config.encryption_mode, EncryptionMode::Required); + assert_eq!( + config.nostr_config.encryption_mode, + EncryptionMode::Required + ); assert!(config.nostr_config.is_stateless); assert_eq!(config.nostr_config.timeout, Duration::from_secs(60)); } @@ -131,6 +135,9 @@ mod tests { nostr_config: NostrClientTransportConfig::default(), }; assert!(!config.nostr_config.is_stateless); - assert_eq!(config.nostr_config.encryption_mode, EncryptionMode::Optional); + assert_eq!( + config.nostr_config.encryption_mode, + EncryptionMode::Optional + ); } -} \ No newline at end of file +} diff --git a/src/rmcp_transport/mod.rs b/src/rmcp_transport/mod.rs index 44a2ab1..57919b5 100644 --- a/src/rmcp_transport/mod.rs +++ b/src/rmcp_transport/mod.rs @@ -9,7 +9,7 @@ pub mod worker; mod pipeline_tests; pub use convert::{ - internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, - rmcp_server_tx_to_internal, + internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, + rmcp_server_tx_to_internal, }; pub use worker::{NostrClientWorker, NostrServerWorker}; diff --git a/src/rmcp_transport/pipeline_tests.rs b/src/rmcp_transport/pipeline_tests.rs index d8da58d..a1a6859 100644 --- a/src/rmcp_transport/pipeline_tests.rs +++ b/src/rmcp_transport/pipeline_tests.rs @@ -16,13 +16,18 @@ mod tests { use std::collections::HashMap; - use rmcp::model::{ClientJsonRpcMessage, ClientResult, RequestId, ServerJsonRpcMessage, ServerResult}; + use rmcp::model::{ + ClientJsonRpcMessage, ClientResult, RequestId, ServerJsonRpcMessage, ServerResult, + }; use crate::core::serializers; - use crate::core::types::{JsonRpcError, JsonRpcErrorResponse, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse}; + use crate::core::types::{ + JsonRpcError, JsonRpcErrorResponse, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, + JsonRpcResponse, + }; use crate::rmcp_transport::convert::{ - internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, - rmcp_client_tx_to_internal, rmcp_server_tx_to_internal, + internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, + rmcp_server_tx_to_internal, }; // ── Layer 1: Nostr event content → JsonRpcMessage ────────────────────── @@ -110,8 +115,8 @@ mod tests { method: "notifications/initialized".to_string(), params: None, }); - let rmcp = internal_to_rmcp_server_rx(&msg) - .expect("initialized notification should convert"); + let rmcp = + internal_to_rmcp_server_rx(&msg).expect("initialized notification should convert"); let v = serde_json::to_value(&rmcp).unwrap(); assert_eq!(v["method"], "notifications/initialized"); } @@ -134,12 +139,10 @@ mod tests { #[test] fn layer4_rmcp_ping_response_roundtrip_number_id() { // Simulate rmcp handler producing a ping response - let rmcp_response = ServerJsonRpcMessage::response( - ServerResult::empty(()), - RequestId::Number(42), - ); - let internal = rmcp_server_tx_to_internal(rmcp_response) - .expect("ping response should convert back"); + let rmcp_response = + ServerJsonRpcMessage::response(ServerResult::empty(()), RequestId::Number(42)); + let internal = + rmcp_server_tx_to_internal(rmcp_response).expect("ping response should convert back"); match internal { JsonRpcMessage::Response(r) => { @@ -180,10 +183,8 @@ mod tests { assert_eq!(id_seen_by_rmcp, serde_json::json!(99)); // Layer 4: rmcp produces a response with the same ID echoed back - let rmcp_tx = ServerJsonRpcMessage::response( - ServerResult::empty(()), - RequestId::Number(99), - ); + let rmcp_tx = + ServerJsonRpcMessage::response(ServerResult::empty(()), RequestId::Number(99)); let response = rmcp_server_tx_to_internal(rmcp_tx).unwrap(); // The response ID must equal the original request ID @@ -193,10 +194,7 @@ mod tests { #[test] fn full_client_roundtrip_response_id_preserved() { // Client side: rmcp produces an outbound request - let rmcp_tx = ClientJsonRpcMessage::response( - ClientResult::empty(()), - RequestId::Number(7), - ); + let rmcp_tx = ClientJsonRpcMessage::response(ClientResult::empty(()), RequestId::Number(7)); let internal = rmcp_client_tx_to_internal(rmcp_tx).unwrap(); assert_eq!(internal.id(), Some(&serde_json::json!(7))); @@ -268,13 +266,19 @@ mod tests { // Key derived from response ID must match the one stored from request ID assert_eq!(key, resp_key); - assert_eq!(request_id_to_event_id.remove(&resp_key), Some(fake_event_id)); + assert_eq!( + request_id_to_event_id.remove(&resp_key), + Some(fake_event_id) + ); } #[test] fn layer5_error_response_correlation_works() { let mut map: HashMap = HashMap::new(); - map.insert(serde_json::to_string(&serde_json::json!(5)).unwrap(), "evt5".to_string()); + map.insert( + serde_json::to_string(&serde_json::json!(5)).unwrap(), + "evt5".to_string(), + ); let error_response = JsonRpcMessage::ErrorResponse(JsonRpcErrorResponse { jsonrpc: "2.0".to_string(), diff --git a/src/rmcp_transport/worker.rs b/src/rmcp_transport/worker.rs index 72f729f..0d52db0 100644 --- a/src/rmcp_transport/worker.rs +++ b/src/rmcp_transport/worker.rs @@ -12,310 +12,316 @@ use crate::transport::server::{NostrServerTransport, NostrServerTransportConfig} use rmcp::transport::worker::{Worker, WorkerContext, WorkerQuitReason}; use super::convert::{ - internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, - rmcp_server_tx_to_internal, + internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, + rmcp_server_tx_to_internal, }; /// rmcp server worker wrapper for ContextVM Nostr server transport. pub struct NostrServerWorker { - transport: NostrServerTransport, - // rmcp service instance is single-peer. Keep one active client per worker. - active_client_pubkey: Option, - // Maps request id (serialized JSON value) -> incoming Nostr event id. - request_id_to_event_id: HashMap, + transport: NostrServerTransport, + // rmcp service instance is single-peer. Keep one active client per worker. + active_client_pubkey: Option, + // Maps request id (serialized JSON value) -> incoming Nostr event id. + request_id_to_event_id: HashMap, } impl NostrServerWorker { - /// Create a new server worker from existing server transport config. - pub async fn new(signer: T, config: NostrServerTransportConfig) -> Result - where - T: nostr_sdk::prelude::IntoNostrSigner, - { - let transport = NostrServerTransport::new(signer, config).await?; - Ok(Self { - transport, - active_client_pubkey: None, - request_id_to_event_id: HashMap::new(), - }) - } - - /// Access the wrapped transport. - pub fn transport(&self) -> &NostrServerTransport { - &self.transport - } + /// Create a new server worker from existing server transport config. + pub async fn new(signer: T, config: NostrServerTransportConfig) -> Result + where + T: nostr_sdk::prelude::IntoNostrSigner, + { + let transport = NostrServerTransport::new(signer, config).await?; + Ok(Self { + transport, + active_client_pubkey: None, + request_id_to_event_id: HashMap::new(), + }) + } + + /// Access the wrapped transport. + pub fn transport(&self) -> &NostrServerTransport { + &self.transport + } } impl Worker for NostrServerWorker { - type Error = crate::core::error::Error; - type Role = rmcp::RoleServer; - - fn err_closed() -> Self::Error { - Self::Error::Transport("rmcp worker channel closed".to_string()) - } - - fn err_join(e: tokio::task::JoinError) -> Self::Error { - Self::Error::Other(format!("rmcp worker join error: {e}")) - } - - async fn run( - mut self, - mut context: WorkerContext, - ) -> std::result::Result<(), WorkerQuitReason> { - self.transport - .start() - .await - .map_err(WorkerQuitReason::fatal_context("starting server transport"))?; - - let mut rx = self.transport.take_message_receiver().ok_or_else(|| { - WorkerQuitReason::fatal( - Self::Error::Other("server message receiver already taken".to_string()), - "taking server message receiver", - ) - })?; - - let cancellation_token = context.cancellation_token.clone(); - - let quit_reason = loop { - tokio::select! { - _ = cancellation_token.cancelled() => { - break WorkerQuitReason::Cancelled; - } - incoming = rx.recv() => { - let Some(incoming) = incoming else { - break WorkerQuitReason::TransportClosed; - }; - - let crate::transport::server::IncomingRequest { - message, - client_pubkey, - event_id, - .. - } = incoming; - - match &self.active_client_pubkey { - Some(active) if active != &client_pubkey => { - tracing::warn!( - active_client = %active, - ignored_client = %client_pubkey, - "Ignoring message from second client: rmcp server worker currently supports one active client per worker" - ); - continue; - } - None => { - tracing::info!(client_pubkey = %client_pubkey, "Binding rmcp server worker to first client session"); - self.active_client_pubkey = Some(client_pubkey.clone()); - } - _ => {} - } - - if let JsonRpcMessage::Request(req) = &message { - match serde_json::to_string(&req.id) { - Ok(request_key) => { - self.request_id_to_event_id.insert(request_key, event_id); - } - Err(e) => { - tracing::warn!("Failed to serialize request id for correlation map: {e}"); - } - } - } - - if let Some(rmcp_msg) = internal_to_rmcp_server_rx(&message) { - if let Err(reason) = context.send_to_handler(rmcp_msg).await { - break reason; - } - } else { - tracing::warn!("Failed to convert incoming server-side message to rmcp format"); - } - } - outbound = context.recv_from_handler() => { - let outbound = match outbound { - Ok(outbound) => outbound, - Err(reason) => break reason, - }; - - let result = if let Some(internal_msg) = rmcp_server_tx_to_internal(outbound.message) { - self.forward_server_internal(internal_msg).await - } else { - Err(Self::Error::Validation( - "failed converting rmcp server message to internal JSON-RPC".to_string(), - )) - }; - - let _ = outbound.responder.send(result); - } - } - }; - - if let Err(e) = self.transport.close().await { - tracing::warn!("Failed to close server transport cleanly: {e}"); - } - - Err(quit_reason) - } + type Error = crate::core::error::Error; + type Role = rmcp::RoleServer; + + fn err_closed() -> Self::Error { + Self::Error::Transport("rmcp worker channel closed".to_string()) + } + + fn err_join(e: tokio::task::JoinError) -> Self::Error { + Self::Error::Other(format!("rmcp worker join error: {e}")) + } + + async fn run( + mut self, + mut context: WorkerContext, + ) -> std::result::Result<(), WorkerQuitReason> { + self.transport + .start() + .await + .map_err(WorkerQuitReason::fatal_context("starting server transport"))?; + + let mut rx = self.transport.take_message_receiver().ok_or_else(|| { + WorkerQuitReason::fatal( + Self::Error::Other("server message receiver already taken".to_string()), + "taking server message receiver", + ) + })?; + + let cancellation_token = context.cancellation_token.clone(); + + let quit_reason = loop { + tokio::select! { + _ = cancellation_token.cancelled() => { + break WorkerQuitReason::Cancelled; + } + incoming = rx.recv() => { + let Some(incoming) = incoming else { + break WorkerQuitReason::TransportClosed; + }; + + let crate::transport::server::IncomingRequest { + message, + client_pubkey, + event_id, + .. + } = incoming; + + match &self.active_client_pubkey { + Some(active) if active != &client_pubkey => { + tracing::warn!( + active_client = %active, + ignored_client = %client_pubkey, + "Ignoring message from second client: rmcp server worker currently supports one active client per worker" + ); + continue; + } + None => { + tracing::info!(client_pubkey = %client_pubkey, "Binding rmcp server worker to first client session"); + self.active_client_pubkey = Some(client_pubkey.clone()); + } + _ => {} + } + + if let JsonRpcMessage::Request(req) = &message { + match serde_json::to_string(&req.id) { + Ok(request_key) => { + self.request_id_to_event_id.insert(request_key, event_id); + } + Err(e) => { + tracing::warn!("Failed to serialize request id for correlation map: {e}"); + } + } + } + + if let Some(rmcp_msg) = internal_to_rmcp_server_rx(&message) { + if let Err(reason) = context.send_to_handler(rmcp_msg).await { + break reason; + } + } else { + tracing::warn!("Failed to convert incoming server-side message to rmcp format"); + } + } + outbound = context.recv_from_handler() => { + let outbound = match outbound { + Ok(outbound) => outbound, + Err(reason) => break reason, + }; + + let result = if let Some(internal_msg) = rmcp_server_tx_to_internal(outbound.message) { + self.forward_server_internal(internal_msg).await + } else { + Err(Self::Error::Validation( + "failed converting rmcp server message to internal JSON-RPC".to_string(), + )) + }; + + let _ = outbound.responder.send(result); + } + } + }; + + if let Err(e) = self.transport.close().await { + tracing::warn!("Failed to close server transport cleanly: {e}"); + } + + Err(quit_reason) + } } /// rmcp client worker wrapper for ContextVM Nostr client transport. pub struct NostrClientWorker { - transport: NostrClientTransport, + transport: NostrClientTransport, } impl NostrClientWorker { - /// Create a new client worker from existing client transport config. - pub async fn new(signer: T, config: NostrClientTransportConfig) -> Result - where - T: nostr_sdk::prelude::IntoNostrSigner, - { - let transport = NostrClientTransport::new(signer, config).await?; - Ok(Self { transport }) - } - - /// Access the wrapped transport. - pub fn transport(&self) -> &NostrClientTransport { - &self.transport - } + /// Create a new client worker from existing client transport config. + pub async fn new(signer: T, config: NostrClientTransportConfig) -> Result + where + T: nostr_sdk::prelude::IntoNostrSigner, + { + let transport = NostrClientTransport::new(signer, config).await?; + Ok(Self { transport }) + } + + /// Access the wrapped transport. + pub fn transport(&self) -> &NostrClientTransport { + &self.transport + } } impl Worker for NostrClientWorker { - type Error = crate::core::error::Error; - type Role = rmcp::RoleClient; - - fn err_closed() -> Self::Error { - Self::Error::Transport("rmcp worker channel closed".to_string()) - } - - fn err_join(e: tokio::task::JoinError) -> Self::Error { - Self::Error::Other(format!("rmcp worker join error: {e}")) - } - - async fn run( - mut self, - mut context: WorkerContext, - ) -> std::result::Result<(), WorkerQuitReason> { - self.transport - .start() - .await - .map_err(WorkerQuitReason::fatal_context("starting client transport"))?; - - let mut rx = self.transport.take_message_receiver().ok_or_else(|| { - WorkerQuitReason::fatal( - Self::Error::Other("client message receiver already taken".to_string()), - "taking client message receiver", - ) - })?; - - let cancellation_token = context.cancellation_token.clone(); - - let quit_reason = loop { - tokio::select! { - _ = cancellation_token.cancelled() => { - break WorkerQuitReason::Cancelled; - } - incoming = rx.recv() => { - let Some(incoming) = incoming else { - break WorkerQuitReason::TransportClosed; - }; - - if let Some(rmcp_msg) = internal_to_rmcp_client_rx(&incoming) { - if let Err(reason) = context.send_to_handler(rmcp_msg).await { - break reason; - } - } else { - tracing::warn!("Failed to convert incoming client-side message to rmcp format"); - } - } - outbound = context.recv_from_handler() => { - let outbound = match outbound { - Ok(outbound) => outbound, - Err(reason) => break reason, - }; - - let result = if let Some(internal_msg) = rmcp_client_tx_to_internal(outbound.message) { - self.transport.send(&internal_msg).await - } else { - Err(Self::Error::Validation( - "failed converting rmcp client message to internal JSON-RPC".to_string(), - )) - }; - - let _ = outbound.responder.send(result); - } - } - }; - - if let Err(e) = self.transport.close().await { - tracing::warn!("Failed to close client transport cleanly: {e}"); - } - - Err(quit_reason) - } + type Error = crate::core::error::Error; + type Role = rmcp::RoleClient; + + fn err_closed() -> Self::Error { + Self::Error::Transport("rmcp worker channel closed".to_string()) + } + + fn err_join(e: tokio::task::JoinError) -> Self::Error { + Self::Error::Other(format!("rmcp worker join error: {e}")) + } + + async fn run( + mut self, + mut context: WorkerContext, + ) -> std::result::Result<(), WorkerQuitReason> { + self.transport + .start() + .await + .map_err(WorkerQuitReason::fatal_context("starting client transport"))?; + + let mut rx = self.transport.take_message_receiver().ok_or_else(|| { + WorkerQuitReason::fatal( + Self::Error::Other("client message receiver already taken".to_string()), + "taking client message receiver", + ) + })?; + + let cancellation_token = context.cancellation_token.clone(); + + let quit_reason = loop { + tokio::select! { + _ = cancellation_token.cancelled() => { + break WorkerQuitReason::Cancelled; + } + incoming = rx.recv() => { + let Some(incoming) = incoming else { + break WorkerQuitReason::TransportClosed; + }; + + if let Some(rmcp_msg) = internal_to_rmcp_client_rx(&incoming) { + if let Err(reason) = context.send_to_handler(rmcp_msg).await { + break reason; + } + } else { + tracing::warn!("Failed to convert incoming client-side message to rmcp format"); + } + } + outbound = context.recv_from_handler() => { + let outbound = match outbound { + Ok(outbound) => outbound, + Err(reason) => break reason, + }; + + let result = if let Some(internal_msg) = rmcp_client_tx_to_internal(outbound.message) { + self.transport.send(&internal_msg).await + } else { + Err(Self::Error::Validation( + "failed converting rmcp client message to internal JSON-RPC".to_string(), + )) + }; + + let _ = outbound.responder.send(result); + } + } + }; + + if let Err(e) = self.transport.close().await { + tracing::warn!("Failed to close client transport cleanly: {e}"); + } + + Err(quit_reason) + } } impl NostrServerWorker { - async fn forward_server_internal(&mut self, message: JsonRpcMessage) -> Result<()> { - match message { - JsonRpcMessage::Response(resp) => { - let request_key = serde_json::to_string(&resp.id).map_err(|e| { - crate::core::error::Error::Validation(format!( - "failed to serialize rmcp response id for correlation lookup: {e}" - )) - })?; - - let event_id = if let Some(event_id) = self.request_id_to_event_id.remove(&request_key) { - event_id - } else { - resp.id.as_str().map(str::to_owned).ok_or_else(|| { - crate::core::error::Error::Validation( + async fn forward_server_internal(&mut self, message: JsonRpcMessage) -> Result<()> { + match message { + JsonRpcMessage::Response(resp) => { + let request_key = serde_json::to_string(&resp.id).map_err(|e| { + crate::core::error::Error::Validation(format!( + "failed to serialize rmcp response id for correlation lookup: {e}" + )) + })?; + + let event_id = + if let Some(event_id) = self.request_id_to_event_id.remove(&request_key) { + event_id + } else { + resp.id.as_str().map(str::to_owned).ok_or_else(|| { + crate::core::error::Error::Validation( "rmcp server response id has no known correlation mapping and is not a string event id" .to_string(), ) - })? - }; - - self.transport - .send_response(&event_id, JsonRpcMessage::Response(resp)) - .await - } - JsonRpcMessage::ErrorResponse(resp) => { - let request_key = serde_json::to_string(&resp.id).map_err(|e| { - crate::core::error::Error::Validation(format!( - "failed to serialize rmcp error response id for correlation lookup: {e}" - )) - })?; - - let event_id = if let Some(event_id) = self.request_id_to_event_id.remove(&request_key) { - event_id - } else { - resp.id.as_str().map(str::to_owned).ok_or_else(|| { - crate::core::error::Error::Validation( + })? + }; + + self.transport + .send_response(&event_id, JsonRpcMessage::Response(resp)) + .await + } + JsonRpcMessage::ErrorResponse(resp) => { + let request_key = serde_json::to_string(&resp.id).map_err(|e| { + crate::core::error::Error::Validation(format!( + "failed to serialize rmcp error response id for correlation lookup: {e}" + )) + })?; + + let event_id = + if let Some(event_id) = self.request_id_to_event_id.remove(&request_key) { + event_id + } else { + resp.id.as_str().map(str::to_owned).ok_or_else(|| { + crate::core::error::Error::Validation( "rmcp server error response id has no known correlation mapping and is not a string event id" .to_string(), ) - })? - }; - - self.transport - .send_response(&event_id, JsonRpcMessage::ErrorResponse(resp)) - .await - } - JsonRpcMessage::Notification(notification) => { - let target = self.active_client_pubkey.as_deref().ok_or_else(|| { - crate::core::error::Error::Validation( - "cannot forward rmcp server notification: no active client bound" - .to_string(), - ) - })?; - let message = JsonRpcMessage::Notification(notification); - self.transport.send_notification(target, &message, None).await - } - JsonRpcMessage::Request(request) => { - let target = self.active_client_pubkey.as_deref().ok_or_else(|| { - crate::core::error::Error::Validation( - "cannot forward rmcp server request: no active client bound".to_string(), - ) - })?; - let message = JsonRpcMessage::Request(request); - self.transport.send_notification(target, &message, None).await - } - } - } + })? + }; + + self.transport + .send_response(&event_id, JsonRpcMessage::ErrorResponse(resp)) + .await + } + JsonRpcMessage::Notification(notification) => { + let target = self.active_client_pubkey.as_deref().ok_or_else(|| { + crate::core::error::Error::Validation( + "cannot forward rmcp server notification: no active client bound" + .to_string(), + ) + })?; + let message = JsonRpcMessage::Notification(notification); + self.transport + .send_notification(target, &message, None) + .await + } + JsonRpcMessage::Request(request) => { + let target = self.active_client_pubkey.as_deref().ok_or_else(|| { + crate::core::error::Error::Validation( + "cannot forward rmcp server request: no active client bound".to_string(), + ) + })?; + let message = JsonRpcMessage::Request(request); + self.transport + .send_notification(target, &message, None) + .await + } + } + } } diff --git a/src/transport/base.rs b/src/transport/base.rs index f425f75..419a4b6 100644 --- a/src/transport/base.rs +++ b/src/transport/base.rs @@ -127,13 +127,16 @@ impl BaseTransport { if should_encrypt { // Single-layer gift wrap: JSON.stringify(signedEvent) → NIP-44 encrypt // This matches the JS/TS SDK's encryptMessage(JSON.stringify(event), recipient) - let event_json = serde_json::to_string(&event) + let event_json = + serde_json::to_string(&event).map_err(|e| Error::Encryption(e.to_string()))?; + let signer = self + .relay_pool + .client() + .signer() + .await .map_err(|e| Error::Encryption(e.to_string()))?; - let signer = self.relay_pool.client().signer().await - .map_err(|e| Error::Encryption(e.to_string()))?; - let gift_wrap_event = encryption::gift_wrap_single_layer( - &signer, recipient, &event_json, - ).await?; + let gift_wrap_event = + encryption::gift_wrap_single_layer(&signer, recipient, &event_json).await?; self.relay_pool.publish_event(&gift_wrap_event).await?; tracing::debug!( signed_event_id = %signed_event_id, @@ -192,24 +195,60 @@ mod tests { #[test] fn test_should_encrypt_disabled_mode() { - assert!(!should_encrypt(EncryptionMode::Disabled, CTXVM_MESSAGES_KIND, None)); - assert!(!should_encrypt(EncryptionMode::Disabled, CTXVM_MESSAGES_KIND, Some(true))); - assert!(!should_encrypt(EncryptionMode::Disabled, CTXVM_MESSAGES_KIND, Some(false))); + assert!(!should_encrypt( + EncryptionMode::Disabled, + CTXVM_MESSAGES_KIND, + None + )); + assert!(!should_encrypt( + EncryptionMode::Disabled, + CTXVM_MESSAGES_KIND, + Some(true) + )); + assert!(!should_encrypt( + EncryptionMode::Disabled, + CTXVM_MESSAGES_KIND, + Some(false) + )); } #[test] fn test_should_encrypt_required_mode() { - assert!(should_encrypt(EncryptionMode::Required, CTXVM_MESSAGES_KIND, None)); - assert!(should_encrypt(EncryptionMode::Required, CTXVM_MESSAGES_KIND, Some(false))); - assert!(should_encrypt(EncryptionMode::Required, CTXVM_MESSAGES_KIND, Some(true))); + assert!(should_encrypt( + EncryptionMode::Required, + CTXVM_MESSAGES_KIND, + None + )); + assert!(should_encrypt( + EncryptionMode::Required, + CTXVM_MESSAGES_KIND, + Some(false) + )); + assert!(should_encrypt( + EncryptionMode::Required, + CTXVM_MESSAGES_KIND, + Some(true) + )); } #[test] fn test_should_encrypt_optional_mode() { // Default (None) → true - assert!(should_encrypt(EncryptionMode::Optional, CTXVM_MESSAGES_KIND, None)); - assert!(should_encrypt(EncryptionMode::Optional, CTXVM_MESSAGES_KIND, Some(true))); - assert!(!should_encrypt(EncryptionMode::Optional, CTXVM_MESSAGES_KIND, Some(false))); + assert!(should_encrypt( + EncryptionMode::Optional, + CTXVM_MESSAGES_KIND, + None + )); + assert!(should_encrypt( + EncryptionMode::Optional, + CTXVM_MESSAGES_KIND, + Some(true) + )); + assert!(!should_encrypt( + EncryptionMode::Optional, + CTXVM_MESSAGES_KIND, + Some(false) + )); } #[test] @@ -237,10 +276,9 @@ mod tests { let keys = Keys::generate(); let pubkey = keys.public_key(); // Create a dummy event ID - let event_id = EventId::from_hex( - "0000000000000000000000000000000000000000000000000000000000000001", - ) - .unwrap(); + let event_id = + EventId::from_hex("0000000000000000000000000000000000000000000000000000000000000001") + .unwrap(); let tags = BaseTransport::create_response_tags(&pubkey, &event_id); assert_eq!(tags.len(), 2); diff --git a/src/transport/client.rs b/src/transport/client.rs index fbe4c42..5da3555 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -18,7 +18,6 @@ use crate::encryption; use crate::relay::RelayPool; use crate::transport::base::BaseTransport; - /// Configuration for the client transport. pub struct NostrClientTransportConfig { /// Relay URLs to connect to. @@ -131,7 +130,13 @@ impl NostrClientTransport { let tags = BaseTransport::create_recipient_tags(&self.server_pubkey); let event_id = self .base - .send_mcp_message(message, &self.server_pubkey, CTXVM_MESSAGES_KIND, tags, None) + .send_mcp_message( + message, + &self.server_pubkey, + CTXVM_MESSAGES_KIND, + tags, + None, + ) .await?; if matches!(message, JsonRpcMessage::Request(_)) { @@ -183,40 +188,40 @@ impl NostrClientTransport { while let Ok(notification) = notifications.recv().await { if let RelayPoolNotification::Event { event, .. } = notification { // Handle gift-wrapped events - let (actual_event_content, actual_pubkey, e_tag) = - if event.kind == Kind::Custom(GIFT_WRAP_KIND) - || event.kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND) - { - // Single-layer NIP-44 decrypt (matches JS/TS SDK) - let signer = match client.signer().await { - Ok(s) => s, - Err(e) => { - tracing::error!("Failed to get signer: {e}"); - continue; - } - }; - match encryption::decrypt_gift_wrap_single_layer(&signer, &event).await { - Ok(decrypted_json) => { - match serde_json::from_str::(&decrypted_json) { - Ok(inner) => { - let e_tag = serializers::get_tag_value(&inner.tags, "e"); - (inner.content, inner.pubkey, e_tag) - } - Err(e) => { - tracing::error!("Failed to parse inner event: {e}"); - continue; - } + let (actual_event_content, actual_pubkey, e_tag) = if event.kind + == Kind::Custom(GIFT_WRAP_KIND) + || event.kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND) + { + // Single-layer NIP-44 decrypt (matches JS/TS SDK) + let signer = match client.signer().await { + Ok(s) => s, + Err(e) => { + tracing::error!("Failed to get signer: {e}"); + continue; + } + }; + match encryption::decrypt_gift_wrap_single_layer(&signer, &event).await { + Ok(decrypted_json) => { + match serde_json::from_str::(&decrypted_json) { + Ok(inner) => { + let e_tag = serializers::get_tag_value(&inner.tags, "e"); + (inner.content, inner.pubkey, e_tag) + } + Err(e) => { + tracing::error!("Failed to parse inner event: {e}"); + continue; } - } - Err(e) => { - tracing::error!("Failed to decrypt gift wrap: {e}"); - continue; } } - } else { - let e_tag = serializers::get_tag_value(&event.tags, "e"); - (event.content.clone(), event.pubkey, e_tag) - }; + Err(e) => { + tracing::error!("Failed to decrypt gift wrap: {e}"); + continue; + } + } + } else { + let e_tag = serializers::get_tag_value(&event.tags, "e"); + (event.content.clone(), event.pubkey, e_tag) + }; // Verify it's from our server if actual_pubkey != server_pubkey { @@ -298,7 +303,10 @@ mod tests { assert!(r.result.get("capabilities").is_some()); assert!(r.result.get("serverInfo").is_some()); let server_info = r.result.get("serverInfo").unwrap(); - assert_eq!(server_info.get("name").unwrap().as_str().unwrap(), "Emulated-Stateless-Server"); + assert_eq!( + server_info.get("name").unwrap().as_str().unwrap(), + "Emulated-Stateless-Server" + ); } } diff --git a/src/transport/server.rs b/src/transport/server.rs index d45e1f9..4ccbe15 100644 --- a/src/transport/server.rs +++ b/src/transport/server.rs @@ -122,7 +122,16 @@ impl NostrServerTransport { let encryption_mode = self.config.encryption_mode; tokio::spawn(async move { - Self::event_loop(client, sessions, event_to_client, tx, allowed, excluded, encryption_mode).await; + Self::event_loop( + client, + sessions, + event_to_client, + tx, + allowed, + excluded, + encryption_mode, + ) + .await; }); // Spawn session cleanup @@ -159,11 +168,7 @@ impl NostrServerTransport { } /// Send a response back to the client that sent the original request. - pub async fn send_response( - &self, - event_id: &str, - mut response: JsonRpcMessage, - ) -> Result<()> { + pub async fn send_response(&self, event_id: &str, mut response: JsonRpcMessage) -> Result<()> { let event_to_client = self.event_to_client.read().await; let client_pubkey_hex = event_to_client .get(event_id) @@ -188,8 +193,8 @@ impl NostrServerTransport { let is_encrypted = session.is_encrypted; drop(sessions); - let client_pubkey = PublicKey::from_hex(&client_pubkey_hex) - .map_err(|e| Error::Other(e.to_string()))?; + let client_pubkey = + PublicKey::from_hex(&client_pubkey_hex).map_err(|e| Error::Other(e.to_string()))?; let event_id_parsed = EventId::from_hex(event_id).map_err(|e| Error::Other(e.to_string()))?; @@ -236,8 +241,8 @@ impl NostrServerTransport { let is_encrypted = session.is_encrypted; drop(sessions); - let client_pubkey = PublicKey::from_hex(client_pubkey_hex) - .map_err(|e| Error::Other(e.to_string()))?; + let client_pubkey = + PublicKey::from_hex(client_pubkey_hex).map_err(|e| Error::Other(e.to_string()))?; let mut tags = BaseTransport::create_recipient_tags(&client_pubkey); if let Some(eid) = correlated_event_id { @@ -329,8 +334,7 @@ impl NostrServerTransport { )); } - let builder = - EventBuilder::new(Kind::Custom(SERVER_ANNOUNCEMENT_KIND), content).tags(tags); + let builder = EventBuilder::new(Kind::Custom(SERVER_ANNOUNCEMENT_KIND), content).tags(tags); self.base.relay_pool.publish(builder).await } @@ -385,11 +389,10 @@ impl NostrServerTransport { let _pubkey_hex = pubkey.to_hex(); for kind in UNENCRYPTED_KINDS { - let builder = EventBuilder::new(Kind::Custom(5), reason) - .tag(Tag::custom( - TagKind::Custom("k".into()), - vec![kind.to_string()], - )); + let builder = EventBuilder::new(Kind::Custom(5), reason).tag(Tag::custom( + TagKind::Custom("k".into()), + vec![kind.to_string()], + )); self.base.relay_pool.publish(builder).await?; } Ok(()) @@ -481,60 +484,60 @@ impl NostrServerTransport { while let Ok(notification) = notifications.recv().await { if let RelayPoolNotification::Event { event, .. } = notification { - let (content, sender_pubkey, event_id, is_encrypted) = - if event.kind == Kind::Custom(GIFT_WRAP_KIND) - || event.kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND) - { - if encryption_mode == EncryptionMode::Disabled { - tracing::warn!("Received encrypted message but encryption is disabled"); + let (content, sender_pubkey, event_id, is_encrypted) = if event.kind + == Kind::Custom(GIFT_WRAP_KIND) + || event.kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND) + { + if encryption_mode == EncryptionMode::Disabled { + tracing::warn!("Received encrypted message but encryption is disabled"); + continue; + } + // Single-layer NIP-44 decrypt (matches JS/TS SDK) + let signer = match client.signer().await { + Ok(s) => s, + Err(e) => { + tracing::error!("Failed to get signer: {e}"); continue; } - // Single-layer NIP-44 decrypt (matches JS/TS SDK) - let signer = match client.signer().await { - Ok(s) => s, - Err(e) => { - tracing::error!("Failed to get signer: {e}"); - continue; - } - }; - match encryption::decrypt_gift_wrap_single_layer(&signer, &event).await { - Ok(decrypted_json) => { - // The decrypted content is JSON of the inner signed event. - // Use the INNER event's ID for correlation — the client - // registers the inner event ID in its correlation store. - match serde_json::from_str::(&decrypted_json) { - Ok(inner) => ( - inner.content, - inner.pubkey.to_hex(), - inner.id.to_hex(), - true, - ), - Err(e) => { - tracing::error!("Failed to parse inner event: {e}"); - continue; - } + }; + match encryption::decrypt_gift_wrap_single_layer(&signer, &event).await { + Ok(decrypted_json) => { + // The decrypted content is JSON of the inner signed event. + // Use the INNER event's ID for correlation — the client + // registers the inner event ID in its correlation store. + match serde_json::from_str::(&decrypted_json) { + Ok(inner) => ( + inner.content, + inner.pubkey.to_hex(), + inner.id.to_hex(), + true, + ), + Err(e) => { + tracing::error!("Failed to parse inner event: {e}"); + continue; } } - Err(e) => { - tracing::error!("Failed to decrypt: {e}"); - continue; - } } - } else { - if encryption_mode == EncryptionMode::Required { - tracing::warn!( - pubkey = %event.pubkey, - "Received unencrypted message but encryption is required" - ); + Err(e) => { + tracing::error!("Failed to decrypt: {e}"); continue; } - ( - event.content.clone(), - event.pubkey.to_hex(), - event.id.to_hex(), - false, - ) - }; + } + } else { + if encryption_mode == EncryptionMode::Required { + tracing::warn!( + pubkey = %event.pubkey, + "Received unencrypted message but encryption is required" + ); + continue; + } + ( + event.content.clone(), + event.pubkey.to_hex(), + event.id.to_hex(), + false, + ) + }; // Parse MCP message let mcp_msg = match serializers::nostr_event_to_mcp_message(&content) { @@ -688,22 +691,36 @@ mod tests { // Insert a session with an old activity time let mut session = ClientSession::new(false); - session.pending_requests.insert("evt1".to_string(), serde_json::json!(1)); - sessions.write().await.insert("pubkey1".to_string(), session); - event_to_client.write().await.insert("evt1".to_string(), "pubkey1".to_string()); + session + .pending_requests + .insert("evt1".to_string(), serde_json::json!(1)); + sessions + .write() + .await + .insert("pubkey1".to_string(), session); + event_to_client + .write() + .await + .insert("evt1".to_string(), "pubkey1".to_string()); // With a long timeout, nothing should be cleaned let cleaned = NostrServerTransport::cleanup_sessions( - &sessions, &event_to_client, Duration::from_secs(300), - ).await; + &sessions, + &event_to_client, + Duration::from_secs(300), + ) + .await; assert_eq!(cleaned, 0); assert_eq!(sessions.read().await.len(), 1); // With zero timeout, it should be cleaned thread::sleep(Duration::from_millis(5)); let cleaned = NostrServerTransport::cleanup_sessions( - &sessions, &event_to_client, Duration::from_millis(1), - ).await; + &sessions, + &event_to_client, + Duration::from_millis(1), + ) + .await; assert_eq!(cleaned, 1); assert!(sessions.read().await.is_empty()); assert!(event_to_client.read().await.is_empty()); @@ -718,8 +735,11 @@ mod tests { sessions.write().await.insert("active".to_string(), session); let cleaned = NostrServerTransport::cleanup_sessions( - &sessions, &event_to_client, Duration::from_secs(300), - ).await; + &sessions, + &event_to_client, + Duration::from_secs(300), + ) + .await; assert_eq!(cleaned, 0); assert_eq!(sessions.read().await.len(), 1); } @@ -729,24 +749,44 @@ mod tests { #[test] fn test_pending_request_tracking() { let mut session = ClientSession::new(false); - session.pending_requests.insert("event_abc".to_string(), serde_json::json!(42)); - assert_eq!(session.pending_requests.get("event_abc"), Some(&serde_json::json!(42))); + session + .pending_requests + .insert("event_abc".to_string(), serde_json::json!(42)); + assert_eq!( + session.pending_requests.get("event_abc"), + Some(&serde_json::json!(42)) + ); } #[test] fn test_progress_token_tracking() { let mut session = ClientSession::new(false); - session.event_to_progress_token.insert("evt1".to_string(), "token1".to_string()); - session.pending_requests.insert("token1".to_string(), serde_json::json!("evt1")); - assert_eq!(session.event_to_progress_token.get("evt1"), Some(&"token1".to_string())); + session + .event_to_progress_token + .insert("evt1".to_string(), "token1".to_string()); + session + .pending_requests + .insert("token1".to_string(), serde_json::json!("evt1")); + assert_eq!( + session.event_to_progress_token.get("evt1"), + Some(&"token1".to_string()) + ); } // ── Authorization (is_capability_excluded) ────────────────── #[test] fn test_initialize_always_excluded() { - assert!(NostrServerTransport::is_capability_excluded(&[], "initialize", None)); - assert!(NostrServerTransport::is_capability_excluded(&[], "notifications/initialized", None)); + assert!(NostrServerTransport::is_capability_excluded( + &[], + "initialize", + None + )); + assert!(NostrServerTransport::is_capability_excluded( + &[], + "notifications/initialized", + None + )); } #[test] @@ -755,8 +795,16 @@ mod tests { method: "tools/list".to_string(), name: None, }]; - assert!(NostrServerTransport::is_capability_excluded(&exclusions, "tools/list", None)); - assert!(NostrServerTransport::is_capability_excluded(&exclusions, "tools/list", Some("anything"))); + assert!(NostrServerTransport::is_capability_excluded( + &exclusions, + "tools/list", + None + )); + assert!(NostrServerTransport::is_capability_excluded( + &exclusions, + "tools/list", + Some("anything") + )); } #[test] @@ -765,9 +813,21 @@ mod tests { method: "tools/call".to_string(), name: Some("get_weather".to_string()), }]; - assert!(NostrServerTransport::is_capability_excluded(&exclusions, "tools/call", Some("get_weather"))); - assert!(!NostrServerTransport::is_capability_excluded(&exclusions, "tools/call", Some("other_tool"))); - assert!(!NostrServerTransport::is_capability_excluded(&exclusions, "tools/call", None)); + assert!(NostrServerTransport::is_capability_excluded( + &exclusions, + "tools/call", + Some("get_weather") + )); + assert!(!NostrServerTransport::is_capability_excluded( + &exclusions, + "tools/call", + Some("other_tool") + )); + assert!(!NostrServerTransport::is_capability_excluded( + &exclusions, + "tools/call", + None + )); } #[test] @@ -776,14 +836,30 @@ mod tests { method: "tools/list".to_string(), name: None, }]; - assert!(!NostrServerTransport::is_capability_excluded(&exclusions, "tools/call", None)); - assert!(!NostrServerTransport::is_capability_excluded(&exclusions, "resources/list", None)); + assert!(!NostrServerTransport::is_capability_excluded( + &exclusions, + "tools/call", + None + )); + assert!(!NostrServerTransport::is_capability_excluded( + &exclusions, + "resources/list", + None + )); } #[test] fn test_empty_exclusions_non_init_method() { - assert!(!NostrServerTransport::is_capability_excluded(&[], "tools/list", None)); - assert!(!NostrServerTransport::is_capability_excluded(&[], "tools/call", Some("x"))); + assert!(!NostrServerTransport::is_capability_excluded( + &[], + "tools/list", + None + )); + assert!(!NostrServerTransport::is_capability_excluded( + &[], + "tools/call", + Some("x") + )); } // ── Encryption mode enforcement ───────────────────────────── From f4e2fd976f21a726af9f6b394e166007ba1d3b78 Mon Sep 17 00:00:00 2001 From: Kushagra Date: Sat, 4 Apr 2026 19:50:14 +0530 Subject: [PATCH 012/116] fix: removed hard coded values and redundant KIND types --- examples/rmcp_integration_test.rs | 10 +-- src/core/constants.rs | 17 ++++- src/encryption/mod.rs | 13 +++- src/lib.rs | 1 + src/rmcp_transport/convert.rs | 117 ++++++++++++++++++++++++++++-- src/rmcp_transport/worker.rs | 1 + src/transport/client.rs | 4 +- 7 files changed, 143 insertions(+), 20 deletions(-) diff --git a/examples/rmcp_integration_test.rs b/examples/rmcp_integration_test.rs index c9656ef..c0bedc6 100644 --- a/examples/rmcp_integration_test.rs +++ b/examples/rmcp_integration_test.rs @@ -17,7 +17,7 @@ //! cargo run --example rmcp_integration_test --features rmcp -- all wss://relay.primal.net use anyhow::{anyhow, bail, Context, Result}; -use contextvm_sdk::core::constants::MCP_PROTOCOL_VERSION; +use contextvm_sdk::core::constants::mcp_protocol_version; use contextvm_sdk::core::types::{ EncryptionMode, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, ServerInfo as CtxServerInfo, @@ -359,7 +359,7 @@ async fn run_hybrid_relay_case(relay_url: &str) -> Result<()> { id: init_id.clone(), method: "initialize".to_string(), params: Some(serde_json::json!({ - "protocolVersion": MCP_PROTOCOL_VERSION, + "protocolVersion": mcp_protocol_version(), "capabilities": { "tools": {}, "resources": {} @@ -654,7 +654,7 @@ fn assert_initialize_shape(response: &JsonRpcMessage) -> Result<()> { let JsonRpcMessage::Response(resp) = response else { bail!("expected initialize response, got {response:?}"); }; - + let expected_protocol = mcp_protocol_version(); let protocol = resp .result .get("protocolVersion") @@ -663,7 +663,7 @@ fn assert_initialize_shape(response: &JsonRpcMessage) -> Result<()> { if !is_supported_protocol(protocol) { bail!( - "unexpected protocolVersion in initialize response: expected one of [{MCP_PROTOCOL_VERSION}, {}], got {protocol}", + "unexpected protocolVersion in initialize response: expected one of [{expected_protocol}, {}], got {protocol}", ProtocolVersion::LATEST ); } @@ -676,7 +676,7 @@ fn assert_initialize_shape(response: &JsonRpcMessage) -> Result<()> { } fn is_supported_protocol(protocol: &str) -> bool { - protocol == MCP_PROTOCOL_VERSION || protocol == ProtocolVersion::LATEST.to_string() + protocol == mcp_protocol_version() || protocol == ProtocolVersion::LATEST.to_string() } fn assert_error_response(response: &JsonRpcMessage) -> Result<()> { diff --git a/src/core/constants.rs b/src/core/constants.rs index b7f8a8b..85cf82b 100644 --- a/src/core/constants.rs +++ b/src/core/constants.rs @@ -33,6 +33,7 @@ pub const RESOURCETEMPLATES_LIST_KIND: u16 = 11319; /// Prompts list (addressable, kind 11320) pub const PROMPTS_LIST_KIND: u16 = 11320; +pub const KIND_GIFT_WRAP: u16 = 1059; /// Nostr tag constants pub mod tags { /// Public key tag @@ -73,7 +74,6 @@ pub const MAX_MESSAGE_SIZE: usize = 1024 * 1024; /// /// Matches the `protocolVersion` field of the `InitializeResult` JSON-RPC response. /// Keep this in sync with the MCP spec and rmcp's `ProtocolVersion::LATEST`. -pub const MCP_PROTOCOL_VERSION: &str = "2025-11-25"; /// Default LRU cache size for deduplication pub const DEFAULT_LRU_SIZE: usize = 5000; @@ -109,6 +109,21 @@ pub const UNENCRYPTED_KINDS: &[u16] = &[ PROMPTS_LIST_KIND, ]; + +#[cfg(feature = "rmcp")] +pub fn mcp_protocol_version() -> &'static str { + use std::sync::OnceLock; + static VERSION: OnceLock = OnceLock::new(); + VERSION + .get_or_init(|| rmcp::model::ProtocolVersion::LATEST.to_string()) + .as_str() +} + +#[cfg(not(feature = "rmcp"))] +pub const fn mcp_protocol_version() -> &'static str { + "2025-11-25" +} + #[cfg(test)] mod tests { use super::*; diff --git a/src/encryption/mod.rs b/src/encryption/mod.rs index d5171e0..0d5b369 100644 --- a/src/encryption/mod.rs +++ b/src/encryption/mod.rs @@ -111,6 +111,8 @@ pub async fn gift_wrap( #[cfg(test)] mod tests { + use crate::core::constants::KIND_GIFT_WRAP; + use super::*; #[tokio::test] @@ -139,7 +141,10 @@ mod tests { /// 2. NIP-44 encrypt the plaintext using ephemeral_secret + recipient_pubkey /// 3. Build kind 1059 event with encrypted content, `p` tag = recipient /// 4. Sign with ephemeral key - async fn create_js_style_gift_wrap(plaintext: &str, recipient: &PublicKey) -> (Event, Keys) { + async fn create_simple_gift_wrap( + plaintext: &str, + recipient: &PublicKey, + ) -> (Event, Keys) { let ephemeral = Keys::generate(); // Single-layer NIP-44 encrypt @@ -148,8 +153,8 @@ mod tests { .unwrap(); // Build kind 1059 event - let builder = - EventBuilder::new(Kind::Custom(1059), encrypted).tag(Tag::public_key(*recipient)); + let builder = EventBuilder::new(Kind::from(KIND_GIFT_WRAP), encrypted) + .tag(Tag::public_key(*recipient)); let event = builder.sign_with_keys(&ephemeral).unwrap(); (event, ephemeral) @@ -177,7 +182,7 @@ mod tests { // Step 3: Encrypt as a gift wrap let (gift_wrap, _ephemeral) = - create_js_style_gift_wrap(&inner_json, &server_keys.public_key()).await; + create_simple_gift_wrap(&inner_json, &server_keys.public_key()).await; assert_eq!(gift_wrap.kind, Kind::Custom(1059)); diff --git a/src/lib.rs b/src/lib.rs index cc2a09e..0af4d58 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -44,6 +44,7 @@ pub mod proxy; pub mod relay; pub mod signer; pub mod transport; +pub mod util; #[cfg(feature = "rmcp")] pub mod rmcp_transport; diff --git a/src/rmcp_transport/convert.rs b/src/rmcp_transport/convert.rs index e575c37..a20fe20 100644 --- a/src/rmcp_transport/convert.rs +++ b/src/rmcp_transport/convert.rs @@ -4,6 +4,7 @@ //! compatibility and avoid fragile hand-mapping between evolving type systems. use crate::core::types::JsonRpcMessage; +use crate::util::logger; /// Convert internal JSON-RPC message into rmcp server RX message. /// @@ -12,8 +13,33 @@ use crate::core::types::JsonRpcMessage; pub fn internal_to_rmcp_server_rx( msg: &JsonRpcMessage, ) -> Option> { - let value = serde_json::to_value(msg).ok()?; - serde_json::from_value(value).ok() + let direction = "internal_to_rmcp_server_rx"; + let target = "contextvm_sdk::rmcp_transport::convert"; + let value = match serde_json::to_value(msg) { + Ok(value) => value, + Err(error) => { + logger::error_with_target( + target, + format!( + "{direction}: failed to serialize message into intermediate JSON: {error}" + ), + ); + return None; + } + }; + + match serde_json::from_value(value.clone()) { + Ok(parsed) => Some(parsed), + Err(error) => { + logger::error_with_target( + target, + format!( + "{direction}: failed to parse converted JSON payload: {error}; payload={value:?}" + ), + ); + None + } + } } /// Convert internal JSON-RPC message into rmcp client RX message. @@ -23,24 +49,99 @@ pub fn internal_to_rmcp_server_rx( pub fn internal_to_rmcp_client_rx( msg: &JsonRpcMessage, ) -> Option> { - let value = serde_json::to_value(msg).ok()?; - serde_json::from_value(value).ok() + let direction = "internal_to_rmcp_client_rx"; + let target = "contextvm_sdk::rmcp_transport::convert"; + let value = match serde_json::to_value(msg) { + Ok(value) => value, + Err(error) => { + logger::error_with_target( + target, + format!( + "{direction}: failed to serialize message into intermediate JSON: {error}" + ), + ); + return None; + } + }; + + match serde_json::from_value(value.clone()) { + Ok(parsed) => Some(parsed), + Err(error) => { + logger::error_with_target( + target, + format!( + "{direction}: failed to parse converted JSON payload: {error}; payload={value:?}" + ), + ); + None + } + } } /// Convert rmcp server TX message back into internal JSON-RPC. pub fn rmcp_server_tx_to_internal( msg: rmcp::service::TxJsonRpcMessage, ) -> Option { - let value = serde_json::to_value(msg).ok()?; - serde_json::from_value(value).ok() + let direction = "rmcp_server_tx_to_internal"; + let target = "contextvm_sdk::rmcp_transport::convert"; + let value = match serde_json::to_value(msg) { + Ok(value) => value, + Err(error) => { + logger::error_with_target( + target, + format!( + "{direction}: failed to serialize message into intermediate JSON: {error}" + ), + ); + return None; + } + }; + + match serde_json::from_value(value.clone()) { + Ok(parsed) => Some(parsed), + Err(error) => { + logger::error_with_target( + target, + format!( + "{direction}: failed to parse converted JSON payload: {error}; payload={value:?}" + ), + ); + None + } + } } /// Convert rmcp client TX message back into internal JSON-RPC. pub fn rmcp_client_tx_to_internal( msg: rmcp::service::TxJsonRpcMessage, ) -> Option { - let value = serde_json::to_value(msg).ok()?; - serde_json::from_value(value).ok() + let direction = "rmcp_client_tx_to_internal"; + let target = "contextvm_sdk::rmcp_transport::convert"; + let value = match serde_json::to_value(msg) { + Ok(value) => value, + Err(error) => { + logger::error_with_target( + target, + format!( + "{direction}: failed to serialize message into intermediate JSON: {error}" + ), + ); + return None; + } + }; + + match serde_json::from_value(value.clone()) { + Ok(parsed) => Some(parsed), + Err(error) => { + logger::error_with_target( + target, + format!( + "{direction}: failed to parse converted JSON payload: {error}; payload={value:?}" + ), + ); + None + } + } } #[cfg(all(test, feature = "rmcp"))] diff --git a/src/rmcp_transport/worker.rs b/src/rmcp_transport/worker.rs index 0d52db0..57b19db 100644 --- a/src/rmcp_transport/worker.rs +++ b/src/rmcp_transport/worker.rs @@ -7,6 +7,7 @@ use std::collections::HashMap; use crate::core::error::Result; use crate::core::types::JsonRpcMessage; +use crate::util::logger; use crate::transport::client::{NostrClientTransport, NostrClientTransportConfig}; use crate::transport::server::{NostrServerTransport, NostrServerTransportConfig}; use rmcp::transport::worker::{Worker, WorkerContext, WorkerQuitReason}; diff --git a/src/transport/client.rs b/src/transport/client.rs index 5da3555..1cc1a0e 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -161,7 +161,7 @@ impl NostrClientTransport { jsonrpc: "2.0".to_string(), id: request_id.clone(), result: serde_json::json!({ - "protocolVersion": crate::core::constants::MCP_PROTOCOL_VERSION, + "protocolVersion": crate::core::constants::mcp_protocol_version(), "serverInfo": { "name": "Emulated-Stateless-Server", "version": "1.0.0" @@ -284,7 +284,7 @@ mod tests { jsonrpc: "2.0".to_string(), id: request_id.clone(), result: serde_json::json!({ - "protocolVersion": crate::core::constants::MCP_PROTOCOL_VERSION, + "protocolVersion": crate::core::constants::mcp_protocol_version(), "serverInfo": { "name": "Emulated-Stateless-Server", "version": "1.0.0" From 905b16ab90923e87860ef8e4cd28fcb4f3db50cc Mon Sep 17 00:00:00 2001 From: Harsh Date: Sun, 5 Apr 2026 23:42:06 +0530 Subject: [PATCH 013/116] fix: add missing util::logger module for rmcp build --- src/rmcp_transport/worker.rs | 1 - src/util/logger.rs | 14 ++++++++++++++ src/util/mod.rs | 3 +++ 3 files changed, 17 insertions(+), 1 deletion(-) create mode 100644 src/util/logger.rs create mode 100644 src/util/mod.rs diff --git a/src/rmcp_transport/worker.rs b/src/rmcp_transport/worker.rs index 57b19db..0d52db0 100644 --- a/src/rmcp_transport/worker.rs +++ b/src/rmcp_transport/worker.rs @@ -7,7 +7,6 @@ use std::collections::HashMap; use crate::core::error::Result; use crate::core::types::JsonRpcMessage; -use crate::util::logger; use crate::transport::client::{NostrClientTransport, NostrClientTransportConfig}; use crate::transport::server::{NostrServerTransport, NostrServerTransportConfig}; use rmcp::transport::worker::{Worker, WorkerContext, WorkerQuitReason}; diff --git a/src/util/logger.rs b/src/util/logger.rs new file mode 100644 index 0000000..fa353f4 --- /dev/null +++ b/src/util/logger.rs @@ -0,0 +1,14 @@ +//! Thin wrappers around `tracing` for stable call sites (e.g. rmcp conversion). +//! +//! Note: `tracing` macros require a string-literal `target:` for callsite registration. +//! The `logical_target` field preserves the module-style string passed by callers. + +/// Log at error level; `logical_target` is the caller’s notion of module/path (for filters in output). +pub fn error_with_target(logical_target: &str, message: impl std::fmt::Display) { + tracing::error!( + target: "contextvm_sdk", + logical_target = logical_target, + "{}", + message + ); +} diff --git a/src/util/mod.rs b/src/util/mod.rs new file mode 100644 index 0000000..5f82fa5 --- /dev/null +++ b/src/util/mod.rs @@ -0,0 +1,3 @@ +//! Small shared helpers (logging wrappers, etc.). + +pub mod logger; From ae57431124e701a1503d64ac3cd2821d38e28f0e Mon Sep 17 00:00:00 2001 From: Harsh Date: Mon, 6 Apr 2026 14:51:17 +0530 Subject: [PATCH 014/116] test: add comprehensive tests for core types --- src/core/types.rs | 275 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 275 insertions(+) diff --git a/src/core/types.rs b/src/core/types.rs index 4ea2e34..a811269 100644 --- a/src/core/types.rs +++ b/src/core/types.rs @@ -222,3 +222,278 @@ pub struct CapabilityExclusion { /// Optional capability name for method-specific exclusions (e.g., "get_weather"). pub name: Option, } + +#[cfg(test)] +mod tests { + use super::*; + use serde_json::json; + use std::thread; + use std::time::Duration; + + #[test] + fn test_encryption_mode_serde_roundtrip_optional() { + let mode = EncryptionMode::Optional; + let s = serde_json::to_string(&mode).unwrap(); + assert_eq!(s, "\"optional\""); + let parsed: EncryptionMode = serde_json::from_str(&s).unwrap(); + assert_eq!(parsed, mode); + } + + #[test] + fn test_encryption_mode_serde_roundtrip_required() { + let mode = EncryptionMode::Required; + let s = serde_json::to_string(&mode).unwrap(); + assert_eq!(s, "\"required\""); + let parsed: EncryptionMode = serde_json::from_str(&s).unwrap(); + assert_eq!(parsed, mode); + } + + #[test] + fn test_encryption_mode_serde_roundtrip_disabled() { + let mode = EncryptionMode::Disabled; + let s = serde_json::to_string(&mode).unwrap(); + assert_eq!(s, "\"disabled\""); + let parsed: EncryptionMode = serde_json::from_str(&s).unwrap(); + assert_eq!(parsed, mode); + } + + fn assert_json_rpc_roundtrip(msg: &JsonRpcMessage) { + let wire = serde_json::to_string(msg).unwrap(); + let parsed: JsonRpcMessage = serde_json::from_str(&wire).unwrap(); + let before = serde_json::to_value(msg).unwrap(); + let after = serde_json::to_value(&parsed).unwrap(); + assert_eq!(before, after); + } + + #[test] + fn test_json_rpc_message_serde_roundtrip_request() { + let msg = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: json!(42), + method: "tools/list".to_string(), + params: Some(json!({ "cursor": null })), + }); + assert_json_rpc_roundtrip(&msg); + } + + #[test] + fn test_json_rpc_message_serde_roundtrip_request_without_params() { + let msg = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: json!("req-id"), + method: "ping".to_string(), + params: None, + }); + assert_json_rpc_roundtrip(&msg); + } + + #[test] + fn test_json_rpc_message_serde_roundtrip_response() { + let msg = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: json!(1), + result: json!({ "tools": [] }), + }); + assert_json_rpc_roundtrip(&msg); + } + + #[test] + fn test_json_rpc_message_serde_roundtrip_error_response() { + let msg = JsonRpcMessage::ErrorResponse(JsonRpcErrorResponse { + jsonrpc: "2.0".to_string(), + id: json!(99), + error: JsonRpcError { + code: -32600, + message: "Invalid Request".to_string(), + data: Some(json!({ "hint": "fix it" })), + }, + }); + assert_json_rpc_roundtrip(&msg); + } + + #[test] + fn test_json_rpc_message_serde_roundtrip_notification() { + let msg = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/initialized".to_string(), + params: None, + }); + assert_json_rpc_roundtrip(&msg); + } + + #[test] + fn test_json_rpc_message_type_predicates() { + let req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: json!(1), + method: "m".to_string(), + params: None, + }); + let res = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: json!(1), + result: json!(null), + }); + let err = JsonRpcMessage::ErrorResponse(JsonRpcErrorResponse { + jsonrpc: "2.0".to_string(), + id: json!(1), + error: JsonRpcError { + code: -1, + message: "e".to_string(), + data: None, + }, + }); + let notif = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "n".to_string(), + params: None, + }); + + assert!(req.is_request()); + assert!(res.is_response()); + assert!(err.is_error()); + assert!(notif.is_notification()); + } + + #[test] + fn test_json_rpc_error_data_none_omitted() { + let err = JsonRpcError { + code: -32600, + message: "bad".to_string(), + data: None, + }; + let json_str = serde_json::to_string(&err).unwrap(); + let value: serde_json::Value = serde_json::from_str(&json_str).unwrap(); + let obj = value.as_object().expect("error object"); + assert!( + !obj.contains_key("data"), + "expected data omitted when None, got: {json_str}" + ); + } + + #[test] + fn test_json_rpc_message_method() { + let req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: json!(0), + method: "tools/call".to_string(), + params: None, + }); + let res = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: json!(0), + result: json!(null), + }); + let err = JsonRpcMessage::ErrorResponse(JsonRpcErrorResponse { + jsonrpc: "2.0".to_string(), + id: json!(0), + error: JsonRpcError { + code: 0, + message: "e".to_string(), + data: None, + }, + }); + let notif = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: None, + }); + + assert_eq!(req.method(), Some("tools/call")); + assert_eq!(res.method(), None); + assert_eq!(err.method(), None); + assert_eq!(notif.method(), Some("notifications/progress")); + } + + #[test] + fn test_json_rpc_message_id() { + let req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: json!("abc"), + method: "m".to_string(), + params: None, + }); + let res = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: json!(7), + result: json!(null), + }); + let err = JsonRpcMessage::ErrorResponse(JsonRpcErrorResponse { + jsonrpc: "2.0".to_string(), + id: json!([1, 2]), + error: JsonRpcError { + code: 0, + message: "e".to_string(), + data: None, + }, + }); + let notif = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "n".to_string(), + params: None, + }); + + assert_eq!(req.id(), Some(&json!("abc"))); + assert_eq!(res.id(), Some(&json!(7))); + assert_eq!(err.id(), Some(&json!([1, 2]))); + assert_eq!(notif.id(), None); + } + + #[test] + fn test_server_info_serde_all_fields_present() { + let info = ServerInfo { + name: Some("Test Server".to_string()), + version: Some("1.0.0".to_string()), + picture: Some("https://example.com/p.png".to_string()), + website: Some("https://example.com".to_string()), + about: Some("About text".to_string()), + }; + let json_str = serde_json::to_string(&info).unwrap(); + let parsed: ServerInfo = serde_json::from_str(&json_str).unwrap(); + assert_eq!(parsed.name, info.name); + assert_eq!(parsed.version, info.version); + assert_eq!(parsed.picture, info.picture); + assert_eq!(parsed.website, info.website); + assert_eq!(parsed.about, info.about); + } + + #[test] + fn test_server_info_serde_optional_fields_omitted() { + let info = ServerInfo { + name: None, + version: None, + picture: None, + website: None, + about: None, + }; + let json_str = serde_json::to_string(&info).unwrap(); + assert_eq!(json_str, "{}"); + } + + #[test] + fn test_client_session_new_initial_state_encrypted() { + let session = ClientSession::new(true); + assert!(!session.is_initialized); + assert!(session.is_encrypted); + assert!(session.pending_requests.is_empty()); + assert!(session.event_to_progress_token.is_empty()); + } + + #[test] + fn test_client_session_new_initial_state_plaintext() { + let session = ClientSession::new(false); + assert!(!session.is_initialized); + assert!(!session.is_encrypted); + assert!(session.pending_requests.is_empty()); + assert!(session.event_to_progress_token.is_empty()); + } + + #[test] + fn test_client_session_update_activity() { + let mut session = ClientSession::new(false); + let first = session.last_activity; + thread::sleep(Duration::from_millis(10)); + session.update_activity(); + assert!(session.last_activity > first); + } +} From 024ee46c60e9a77b4a4fc5d9727f5380b61b3896 Mon Sep 17 00:00:00 2001 From: Kushagra Date: Tue, 7 Apr 2026 03:01:49 +0530 Subject: [PATCH 015/116] feat: implemented tracing setup for subscriptions and custom log format and file paths --- src/util/logger.rs | 14 --- src/util/mod.rs | 4 +- src/util/tracing_setup.rs | 259 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 260 insertions(+), 17 deletions(-) delete mode 100644 src/util/logger.rs create mode 100644 src/util/tracing_setup.rs diff --git a/src/util/logger.rs b/src/util/logger.rs deleted file mode 100644 index fa353f4..0000000 --- a/src/util/logger.rs +++ /dev/null @@ -1,14 +0,0 @@ -//! Thin wrappers around `tracing` for stable call sites (e.g. rmcp conversion). -//! -//! Note: `tracing` macros require a string-literal `target:` for callsite registration. -//! The `logical_target` field preserves the module-style string passed by callers. - -/// Log at error level; `logical_target` is the caller’s notion of module/path (for filters in output). -pub fn error_with_target(logical_target: &str, message: impl std::fmt::Display) { - tracing::error!( - target: "contextvm_sdk", - logical_target = logical_target, - "{}", - message - ); -} diff --git a/src/util/mod.rs b/src/util/mod.rs index 5f82fa5..c5eb5d2 100644 --- a/src/util/mod.rs +++ b/src/util/mod.rs @@ -1,3 +1 @@ -//! Small shared helpers (logging wrappers, etc.). - -pub mod logger; +pub mod tracing_setup; diff --git a/src/util/tracing_setup.rs b/src/util/tracing_setup.rs new file mode 100644 index 0000000..313bb5d --- /dev/null +++ b/src/util/tracing_setup.rs @@ -0,0 +1,259 @@ +//! Internal tracing subscriber setup for ContextVM transports. + +use std::fmt; +use std::fs::{File, OpenOptions}; +use std::io::{self, Write}; +use std::path::{Path, PathBuf}; +use std::sync::{Mutex, OnceLock}; + +use tracing::Event; +use tracing_subscriber::fmt::format::Writer; +use tracing_subscriber::fmt::writer::MakeWriter; +use tracing_subscriber::fmt::{FmtContext, FormatEvent, FormatFields}; +use tracing_subscriber::layer::{Layer, SubscriberExt}; +use tracing_subscriber::registry::LookupSpan; +use tracing_subscriber::{EnvFilter, Registry}; + +use crate::core::error::{Error, Result}; + +static TRACING_SETUP_LOCK: OnceLock> = OnceLock::new(); +static TRACING_INITIALIZED: OnceLock<()> = OnceLock::new(); +static LOG_DESTINATION: OnceLock> = OnceLock::new(); + +fn tracing_setup_lock() -> &'static Mutex<()> { + TRACING_SETUP_LOCK.get_or_init(|| Mutex::new(())) +} + +fn log_destination() -> &'static Mutex { + LOG_DESTINATION.get_or_init(|| Mutex::new(LogDestination::default())) +} + +pub(crate) fn init_tracer(log_file_path: Option<&str>) -> Result<()> { + let _guard = tracing_setup_lock() + .lock() + .map_err(|_| Error::Other("failed to acquire tracing setup lock".to_string()))?; + + configure_file_output(log_file_path)?; + + if TRACING_INITIALIZED.get().is_some() { + return Ok(()); + } + + let subscriber = Registry::default().with( + tracing_subscriber::fmt::layer() + .with_ansi(false) + .with_writer(ContextVmMakeWriter) + .event_format(ContextVmEventFormatter) + .with_filter(build_env_filter()), + ); + + match tracing::subscriber::set_global_default(subscriber) { + Ok(()) => { + let _ = TRACING_INITIALIZED.set(()); + Ok(()) + } + Err(error) => { + let text = error.to_string(); + if text.contains("global default trace dispatcher has already been set") { + let _ = TRACING_INITIALIZED.set(()); + Ok(()) + } else { + Err(Error::Other(format!( + "failed to initialize tracing subscriber: {text}" + ))) + } + } + } +} + +fn configure_file_output(log_file_path: Option<&str>) -> Result<()> { + let Some(path) = normalize_log_file_path(log_file_path) else { + return Ok(()); + }; + + ensure_parent_exists(&path)?; + + let file = OpenOptions::new() + .create(true) + .append(true) + .open(&path) + .map_err(|error| { + Error::Other(format!( + "failed to open log file {}: {error}", + path.display() + )) + })?; + + let mut destination = log_destination() + .lock() + .map_err(|_| Error::Other("failed to acquire log destination lock".to_string()))?; + destination.file = Some(file); + + Ok(()) +} + +fn normalize_log_file_path(log_file_path: Option<&str>) -> Option { + let trimmed = log_file_path?.trim(); + if trimmed.is_empty() { + None + } else { + Some(PathBuf::from(trimmed)) + } +} + +fn ensure_parent_exists(path: &Path) -> Result<()> { + if let Some(parent) = path.parent() { + if !parent.as_os_str().is_empty() { + std::fs::create_dir_all(parent).map_err(|error| { + Error::Other(format!( + "failed to create log directory {}: {error}", + parent.display() + )) + })?; + } + } + + Ok(()) +} + +fn build_env_filter() -> EnvFilter { + EnvFilter::try_from_default_env() + .unwrap_or_else(|_| EnvFilter::new("contextvm_sdk=info,rmcp=warn")) +} + +#[derive(Default)] +struct LogDestination { + file: Option, +} + +#[derive(Clone, Copy)] +struct ContextVmMakeWriter; + +impl<'a> MakeWriter<'a> for ContextVmMakeWriter { + type Writer = ContextVmWriter; + + fn make_writer(&'a self) -> Self::Writer { + ContextVmWriter { + stdout: io::stdout(), + } + } +} + +struct ContextVmWriter { + stdout: io::Stdout, +} + +impl Write for ContextVmWriter { + fn write(&mut self, buf: &[u8]) -> io::Result { + self.stdout.write_all(buf)?; + + if let Ok(mut destination) = log_destination().lock() { + if let Some(file) = destination.file.as_mut() { + let _ = file.write_all(buf); + } + } + + Ok(buf.len()) + } + + fn flush(&mut self) -> io::Result<()> { + self.stdout.flush()?; + + if let Ok(mut destination) = log_destination().lock() { + if let Some(file) = destination.file.as_mut() { + let _ = file.flush(); + } + } + + Ok(()) + } +} + +#[derive(Default)] +struct MessageVisitor { + message: Option, + extra_fields: Vec<(String, String)>, +} + +impl MessageVisitor { + fn record_field(&mut self, name: &str, value: String) { + if name == "message" { + self.message = Some(value); + } else { + self.extra_fields.push((name.to_string(), value)); + } + } +} + +impl tracing::field::Visit for MessageVisitor { + fn record_i64(&mut self, field: &tracing::field::Field, value: i64) { + self.record_field(field.name(), value.to_string()); + } + + fn record_u64(&mut self, field: &tracing::field::Field, value: u64) { + self.record_field(field.name(), value.to_string()); + } + + fn record_bool(&mut self, field: &tracing::field::Field, value: bool) { + self.record_field(field.name(), value.to_string()); + } + + fn record_str(&mut self, field: &tracing::field::Field, value: &str) { + self.record_field(field.name(), value.to_string()); + } + + fn record_error( + &mut self, + field: &tracing::field::Field, + value: &(dyn std::error::Error + 'static), + ) { + self.record_field(field.name(), value.to_string()); + } + + fn record_debug(&mut self, field: &tracing::field::Field, value: &dyn fmt::Debug) { + self.record_field(field.name(), format!("{value:?}")); + } +} + +struct ContextVmEventFormatter; + +impl FormatEvent for ContextVmEventFormatter +where + S: tracing::Subscriber + for<'span> LookupSpan<'span>, + N: for<'writer> FormatFields<'writer> + 'static, +{ + fn format_event( + &self, + _ctx: &FmtContext<'_, S, N>, + mut writer: Writer<'_>, + event: &Event<'_>, + ) -> fmt::Result { + let mut visitor = MessageVisitor::default(); + event.record(&mut visitor); + + let metadata = event.metadata(); + let timestamp = unix_timestamp(); + let level = metadata.level().to_string().to_lowercase(); + let message = visitor.message.unwrap_or_default(); + + write!( + writer, + "{timestamp}:{level}::{}:{message}", + metadata.target() + )?; + + for (key, value) in visitor.extra_fields { + write!(writer, " {key}={value}")?; + } + + writeln!(writer) + } +} + +fn unix_timestamp() -> String { + use std::time::{SystemTime, UNIX_EPOCH}; + + let now = SystemTime::now(); + let duration = now.duration_since(UNIX_EPOCH).unwrap_or_default(); + format!("{}.{:03}", duration.as_secs(), duration.subsec_millis()) +} From c84036d31ea6b58f1916a75b2b9b36c0ea3a152f Mon Sep 17 00:00:00 2001 From: Kushagra Date: Tue, 7 Apr 2026 03:02:56 +0530 Subject: [PATCH 016/116] enhancement: improved error logging in encryption module --- src/encryption/mod.rs | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/src/encryption/mod.rs b/src/encryption/mod.rs index 0d5b369..1e32426 100644 --- a/src/encryption/mod.rs +++ b/src/encryption/mod.rs @@ -141,10 +141,7 @@ mod tests { /// 2. NIP-44 encrypt the plaintext using ephemeral_secret + recipient_pubkey /// 3. Build kind 1059 event with encrypted content, `p` tag = recipient /// 4. Sign with ephemeral key - async fn create_simple_gift_wrap( - plaintext: &str, - recipient: &PublicKey, - ) -> (Event, Keys) { + async fn create_simple_gift_wrap(plaintext: &str, recipient: &PublicKey) -> (Event, Keys) { let ephemeral = Keys::generate(); // Single-layer NIP-44 encrypt From bc10f030d1a89555554ef5e775bfaaccbc9339fb Mon Sep 17 00:00:00 2001 From: Kushagra Date: Tue, 7 Apr 2026 03:03:49 +0530 Subject: [PATCH 017/116] enhancement: improved error logging in gateway and proxy modules --- src/gateway/mod.rs | 1 + src/proxy/mod.rs | 1 + 2 files changed, 2 insertions(+) diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index 427b48f..ea388b7 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -127,6 +127,7 @@ mod tests { excluded_capabilities: vec![], cleanup_interval: Duration::from_secs(120), session_timeout: Duration::from_secs(600), + log_file_path: None, }; let config = GatewayConfig { nostr_config }; diff --git a/src/proxy/mod.rs b/src/proxy/mod.rs index 25fc2a8..df1d386 100644 --- a/src/proxy/mod.rs +++ b/src/proxy/mod.rs @@ -112,6 +112,7 @@ mod tests { encryption_mode: EncryptionMode::Required, is_stateless: true, timeout: Duration::from_secs(60), + log_file_path: None, }; let config = ProxyConfig { nostr_config }; From 3cb5eb0ad873d17b0db66aa28640fe8a13c52d1e Mon Sep 17 00:00:00 2001 From: Kushagra Date: Tue, 7 Apr 2026 03:05:29 +0530 Subject: [PATCH 018/116] enhancement: improved error logging in rmcp and transport modules --- src/lib.rs | 2 +- src/rmcp_transport/convert.rs | 91 +++++++-------- src/transport/client.rs | 143 ++++++++++++++++++++---- src/transport/server.rs | 204 ++++++++++++++++++++++++++++------ 4 files changed, 344 insertions(+), 96 deletions(-) diff --git a/src/lib.rs b/src/lib.rs index 0af4d58..2157224 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -44,10 +44,10 @@ pub mod proxy; pub mod relay; pub mod signer; pub mod transport; -pub mod util; #[cfg(feature = "rmcp")] pub mod rmcp_transport; +mod util; // Re-export commonly used types pub use core::error::{Error, Result}; diff --git a/src/rmcp_transport/convert.rs b/src/rmcp_transport/convert.rs index a20fe20..7df0783 100644 --- a/src/rmcp_transport/convert.rs +++ b/src/rmcp_transport/convert.rs @@ -4,7 +4,8 @@ //! compatibility and avoid fragile hand-mapping between evolving type systems. use crate::core::types::JsonRpcMessage; -use crate::util::logger; + +const LOG_TARGET: &str = "contextvm_sdk::rmcp_transport::convert"; /// Convert internal JSON-RPC message into rmcp server RX message. /// @@ -14,15 +15,14 @@ pub fn internal_to_rmcp_server_rx( msg: &JsonRpcMessage, ) -> Option> { let direction = "internal_to_rmcp_server_rx"; - let target = "contextvm_sdk::rmcp_transport::convert"; let value = match serde_json::to_value(msg) { Ok(value) => value, Err(error) => { - logger::error_with_target( - target, - format!( - "{direction}: failed to serialize message into intermediate JSON: {error}" - ), + tracing::error!( + target: LOG_TARGET, + direction = direction, + error = %error, + "Failed to serialize message into intermediate JSON" ); return None; } @@ -31,11 +31,12 @@ pub fn internal_to_rmcp_server_rx( match serde_json::from_value(value.clone()) { Ok(parsed) => Some(parsed), Err(error) => { - logger::error_with_target( - target, - format!( - "{direction}: failed to parse converted JSON payload: {error}; payload={value:?}" - ), + tracing::error!( + target: LOG_TARGET, + direction = direction, + error = %error, + payload = ?value, + "Failed to parse converted JSON payload" ); None } @@ -50,15 +51,14 @@ pub fn internal_to_rmcp_client_rx( msg: &JsonRpcMessage, ) -> Option> { let direction = "internal_to_rmcp_client_rx"; - let target = "contextvm_sdk::rmcp_transport::convert"; let value = match serde_json::to_value(msg) { Ok(value) => value, Err(error) => { - logger::error_with_target( - target, - format!( - "{direction}: failed to serialize message into intermediate JSON: {error}" - ), + tracing::error!( + target: LOG_TARGET, + direction = direction, + error = %error, + "Failed to serialize message into intermediate JSON" ); return None; } @@ -67,11 +67,12 @@ pub fn internal_to_rmcp_client_rx( match serde_json::from_value(value.clone()) { Ok(parsed) => Some(parsed), Err(error) => { - logger::error_with_target( - target, - format!( - "{direction}: failed to parse converted JSON payload: {error}; payload={value:?}" - ), + tracing::error!( + target: LOG_TARGET, + direction = direction, + error = %error, + payload = ?value, + "Failed to parse converted JSON payload" ); None } @@ -83,15 +84,14 @@ pub fn rmcp_server_tx_to_internal( msg: rmcp::service::TxJsonRpcMessage, ) -> Option { let direction = "rmcp_server_tx_to_internal"; - let target = "contextvm_sdk::rmcp_transport::convert"; let value = match serde_json::to_value(msg) { Ok(value) => value, Err(error) => { - logger::error_with_target( - target, - format!( - "{direction}: failed to serialize message into intermediate JSON: {error}" - ), + tracing::error!( + target: LOG_TARGET, + direction = direction, + error = %error, + "Failed to serialize message into intermediate JSON" ); return None; } @@ -100,11 +100,12 @@ pub fn rmcp_server_tx_to_internal( match serde_json::from_value(value.clone()) { Ok(parsed) => Some(parsed), Err(error) => { - logger::error_with_target( - target, - format!( - "{direction}: failed to parse converted JSON payload: {error}; payload={value:?}" - ), + tracing::error!( + target: LOG_TARGET, + direction = direction, + error = %error, + payload = ?value, + "Failed to parse converted JSON payload" ); None } @@ -116,15 +117,14 @@ pub fn rmcp_client_tx_to_internal( msg: rmcp::service::TxJsonRpcMessage, ) -> Option { let direction = "rmcp_client_tx_to_internal"; - let target = "contextvm_sdk::rmcp_transport::convert"; let value = match serde_json::to_value(msg) { Ok(value) => value, Err(error) => { - logger::error_with_target( - target, - format!( - "{direction}: failed to serialize message into intermediate JSON: {error}" - ), + tracing::error!( + target: LOG_TARGET, + direction = direction, + error = %error, + "Failed to serialize message into intermediate JSON" ); return None; } @@ -133,11 +133,12 @@ pub fn rmcp_client_tx_to_internal( match serde_json::from_value(value.clone()) { Ok(parsed) => Some(parsed), Err(error) => { - logger::error_with_target( - target, - format!( - "{direction}: failed to parse converted JSON payload: {error}; payload={value:?}" - ), + tracing::error!( + target: LOG_TARGET, + direction = direction, + error = %error, + payload = ?value, + "Failed to parse converted JSON payload" ); None } diff --git a/src/transport/client.rs b/src/transport/client.rs index 1cc1a0e..e41e518 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -18,6 +18,10 @@ use crate::encryption; use crate::relay::RelayPool; use crate::transport::base::BaseTransport; +use crate::util::tracing_setup; + +const LOG_TARGET: &str = "contextvm_sdk::transport::client"; + /// Configuration for the client transport. pub struct NostrClientTransportConfig { /// Relay URLs to connect to. @@ -30,6 +34,8 @@ pub struct NostrClientTransportConfig { pub is_stateless: bool, /// Response timeout (default: 30s). pub timeout: Duration, + /// Optional log file path. Logs always go to stdout and are also appended here when set. + pub log_file_path: Option, } impl Default for NostrClientTransportConfig { @@ -40,6 +46,7 @@ impl Default for NostrClientTransportConfig { encryption_mode: EncryptionMode::Optional, is_stateless: false, timeout: Duration::from_secs(30), + log_file_path: None, } } } @@ -62,12 +69,35 @@ impl NostrClientTransport { where T: IntoNostrSigner, { - let server_pubkey = PublicKey::from_hex(&config.server_pubkey) - .map_err(|e| Error::Other(format!("Invalid server pubkey: {e}")))?; - - let relay_pool = Arc::new(RelayPool::new(signer).await?); + tracing_setup::init_tracer(config.log_file_path.as_deref())?; + + let server_pubkey = PublicKey::from_hex(&config.server_pubkey).map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + server_pubkey = %config.server_pubkey, + "Invalid server pubkey" + ); + Error::Other(format!("Invalid server pubkey: {error}")) + })?; + + let relay_pool = Arc::new(RelayPool::new(signer).await.map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to initialize relay pool for client transport" + ); + error + })?); let (tx, rx) = tokio::sync::mpsc::unbounded_channel(); + tracing::info!( + target: LOG_TARGET, + relay_count = config.relay_urls.len(), + stateless = config.is_stateless, + encryption_mode = ?config.encryption_mode, + "Created client transport" + ); Ok(Self { base: BaseTransport { relay_pool, @@ -84,12 +114,44 @@ impl NostrClientTransport { /// Connect and start listening for responses. pub async fn start(&mut self) -> Result<()> { - self.base.connect(&self.config.relay_urls).await?; - - let pubkey = self.base.get_public_key().await?; - tracing::info!(pubkey = %pubkey.to_hex(), "Client transport started"); - - self.base.subscribe_for_pubkey(&pubkey).await?; + self.base + .connect(&self.config.relay_urls) + .await + .map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to connect client transport to relays" + ); + error + })?; + + let pubkey = self.base.get_public_key().await.map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to fetch client transport public key" + ); + error + })?; + tracing::info!( + target: LOG_TARGET, + pubkey = %pubkey.to_hex(), + "Client transport started" + ); + + self.base + .subscribe_for_pubkey(&pubkey) + .await + .map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + pubkey = %pubkey.to_hex(), + "Failed to subscribe client transport for pubkey" + ); + error + })?; // Spawn event loop let client = self.base.relay_pool.client().clone(); @@ -102,6 +164,11 @@ impl NostrClientTransport { Self::event_loop(client, pending, server_pubkey, tx, encryption_mode).await; }); + tracing::info!( + target: LOG_TARGET, + relay_count = self.config.relay_urls.len(), + "Client transport event loop spawned" + ); Ok(()) } @@ -137,7 +204,17 @@ impl NostrClientTransport { tags, None, ) - .await?; + .await + .map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + server_pubkey = %self.server_pubkey.to_hex(), + method = ?message.method(), + "Failed to send client message" + ); + error + })?; if matches!(message, JsonRpcMessage::Request(_)) { self.pending_requests @@ -146,6 +223,12 @@ impl NostrClientTransport { .insert(event_id.to_hex()); } + tracing::debug!( + target: LOG_TARGET, + event_id = %event_id.to_hex(), + method = ?message.method(), + "Sent client message" + ); Ok(()) } @@ -195,8 +278,12 @@ impl NostrClientTransport { // Single-layer NIP-44 decrypt (matches JS/TS SDK) let signer = match client.signer().await { Ok(s) => s, - Err(e) => { - tracing::error!("Failed to get signer: {e}"); + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to get signer" + ); continue; } }; @@ -207,14 +294,22 @@ impl NostrClientTransport { let e_tag = serializers::get_tag_value(&inner.tags, "e"); (inner.content, inner.pubkey, e_tag) } - Err(e) => { - tracing::error!("Failed to parse inner event: {e}"); + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to parse inner event" + ); continue; } } } - Err(e) => { - tracing::error!("Failed to decrypt gift wrap: {e}"); + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to decrypt gift wrap" + ); continue; } } @@ -225,7 +320,12 @@ impl NostrClientTransport { // Verify it's from our server if actual_pubkey != server_pubkey { - tracing::debug!("Skipping event from unexpected pubkey"); + tracing::debug!( + target: LOG_TARGET, + event_pubkey = %actual_pubkey.to_hex(), + expected_pubkey = %server_pubkey.to_hex(), + "Skipping event from unexpected pubkey" + ); continue; } @@ -233,7 +333,11 @@ impl NostrClientTransport { if let Some(ref correlated_id) = e_tag { let is_pending = pending.read().await.contains(correlated_id.as_str()); if !is_pending { - tracing::warn!(e_tag = %correlated_id, "Response for unknown request"); + tracing::warn!( + target: LOG_TARGET, + correlated_event_id = %correlated_id, + "Response for unknown request" + ); continue; } } @@ -265,6 +369,7 @@ mod tests { assert_eq!(config.encryption_mode, EncryptionMode::Optional); assert!(!config.is_stateless); assert_eq!(config.timeout, Duration::from_secs(30)); + assert!(config.log_file_path.is_none()); } #[test] diff --git a/src/transport/server.rs b/src/transport/server.rs index 4ccbe15..dbf4520 100644 --- a/src/transport/server.rs +++ b/src/transport/server.rs @@ -19,6 +19,10 @@ use crate::encryption; use crate::relay::RelayPool; use crate::transport::base::BaseTransport; +use crate::util::tracing_setup; + +const LOG_TARGET: &str = "contextvm_sdk::transport::server"; + /// Configuration for the server transport. pub struct NostrServerTransportConfig { /// Relay URLs to connect to. @@ -37,6 +41,8 @@ pub struct NostrServerTransportConfig { pub cleanup_interval: Duration, /// Session timeout (default: 300s). pub session_timeout: Duration, + /// Optional log file path. Logs always go to stdout and are also appended here when set. + pub log_file_path: Option, } impl Default for NostrServerTransportConfig { @@ -50,6 +56,7 @@ impl Default for NostrServerTransportConfig { excluded_capabilities: Vec::new(), cleanup_interval: Duration::from_secs(60), session_timeout: Duration::from_secs(300), + log_file_path: None, } } } @@ -86,9 +93,25 @@ impl NostrServerTransport { where T: IntoNostrSigner, { - let relay_pool = Arc::new(RelayPool::new(signer).await?); + tracing_setup::init_tracer(config.log_file_path.as_deref())?; + + let relay_pool = Arc::new(RelayPool::new(signer).await.map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to initialize relay pool for server transport" + ); + error + })?); let (tx, rx) = tokio::sync::mpsc::unbounded_channel(); + tracing::info!( + target: LOG_TARGET, + relay_count = config.relay_urls.len(), + announced = config.is_announced_server, + encryption_mode = ?config.encryption_mode, + "Created server transport" + ); Ok(Self { base: BaseTransport { relay_pool, @@ -105,12 +128,44 @@ impl NostrServerTransport { /// Start listening for incoming requests. pub async fn start(&mut self) -> Result<()> { - self.base.connect(&self.config.relay_urls).await?; - - let pubkey = self.base.get_public_key().await?; - tracing::info!(pubkey = %pubkey.to_hex(), "Server transport started"); + self.base + .connect(&self.config.relay_urls) + .await + .map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to connect server transport to relays" + ); + error + })?; + + let pubkey = self.base.get_public_key().await.map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to fetch server transport public key" + ); + error + })?; + tracing::info!( + target: LOG_TARGET, + pubkey = %pubkey.to_hex(), + "Server transport started" + ); - self.base.subscribe_for_pubkey(&pubkey).await?; + self.base + .subscribe_for_pubkey(&pubkey) + .await + .map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + pubkey = %pubkey.to_hex(), + "Failed to subscribe server transport for pubkey" + ); + error + })?; // Spawn event loop let client = self.base.relay_pool.client().clone(); @@ -151,11 +206,22 @@ impl NostrServerTransport { ) .await; if cleaned > 0 { - tracing::info!(cleaned, "Cleaned up inactive sessions"); + tracing::info!( + target: LOG_TARGET, + cleaned_sessions = cleaned, + "Cleaned up inactive sessions" + ); } } }); + tracing::info!( + target: LOG_TARGET, + relay_count = self.config.relay_urls.len(), + cleanup_interval_secs = self.config.cleanup_interval.as_secs(), + session_timeout_secs = self.config.session_timeout.as_secs(), + "Server transport loops spawned" + ); Ok(()) } @@ -172,14 +238,26 @@ impl NostrServerTransport { let event_to_client = self.event_to_client.read().await; let client_pubkey_hex = event_to_client .get(event_id) - .ok_or_else(|| Error::Other(format!("No client found for event {event_id}")))? + .ok_or_else(|| { + tracing::error!( + target: LOG_TARGET, + event_id = %event_id, + "No client found for response correlation" + ); + Error::Other(format!("No client found for event {event_id}")) + })? .clone(); drop(event_to_client); let sessions = self.sessions.read().await; - let session = sessions - .get(&client_pubkey_hex) - .ok_or_else(|| Error::Other(format!("No session for client {client_pubkey_hex}")))?; + let session = sessions.get(&client_pubkey_hex).ok_or_else(|| { + tracing::error!( + target: LOG_TARGET, + client_pubkey = %client_pubkey_hex, + "No session for correlated client" + ); + Error::Other(format!("No session for client {client_pubkey_hex}")) + })?; // Restore original request ID if let Some(original_id) = session.pending_requests.get(event_id) { @@ -193,11 +271,25 @@ impl NostrServerTransport { let is_encrypted = session.is_encrypted; drop(sessions); - let client_pubkey = - PublicKey::from_hex(&client_pubkey_hex).map_err(|e| Error::Other(e.to_string()))?; - - let event_id_parsed = - EventId::from_hex(event_id).map_err(|e| Error::Other(e.to_string()))?; + let client_pubkey = PublicKey::from_hex(&client_pubkey_hex).map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + client_pubkey = %client_pubkey_hex, + "Invalid client pubkey in session map" + ); + Error::Other(error.to_string()) + })?; + + let event_id_parsed = EventId::from_hex(event_id).map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + event_id = %event_id, + "Invalid event id while sending response" + ); + Error::Other(error.to_string()) + })?; let tags = BaseTransport::create_response_tags(&client_pubkey, &event_id_parsed); @@ -209,7 +301,17 @@ impl NostrServerTransport { tags, Some(is_encrypted), ) - .await?; + .await + .map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + client_pubkey = %client_pubkey_hex, + event_id = %event_id, + "Failed to publish response message" + ); + error + })?; // Clean up let mut sessions = self.sessions.write().await; @@ -224,6 +326,13 @@ impl NostrServerTransport { self.event_to_client.write().await.remove(event_id); + tracing::debug!( + target: LOG_TARGET, + client_pubkey = %client_pubkey_hex, + event_id = %event_id, + encrypted = is_encrypted, + "Sent server response and cleaned correlation state" + ); Ok(()) } @@ -274,8 +383,13 @@ impl NostrServerTransport { drop(sessions); for pubkey in initialized { - if let Err(e) = self.send_notification(&pubkey, notification, None).await { - tracing::error!(client = %pubkey, "Failed to send notification: {e}"); + if let Err(error) = self.send_notification(&pubkey, notification, None).await { + tracing::error!( + target: LOG_TARGET, + error = %error, + client_pubkey = %pubkey, + "Failed to send notification" + ); } } Ok(()) @@ -489,14 +603,23 @@ impl NostrServerTransport { || event.kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND) { if encryption_mode == EncryptionMode::Disabled { - tracing::warn!("Received encrypted message but encryption is disabled"); + tracing::warn!( + target: LOG_TARGET, + event_id = %event.id.to_hex(), + sender_pubkey = %event.pubkey.to_hex(), + "Received encrypted message but encryption is disabled" + ); continue; } // Single-layer NIP-44 decrypt (matches JS/TS SDK) let signer = match client.signer().await { Ok(s) => s, - Err(e) => { - tracing::error!("Failed to get signer: {e}"); + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to get signer" + ); continue; } }; @@ -512,21 +635,30 @@ impl NostrServerTransport { inner.id.to_hex(), true, ), - Err(e) => { - tracing::error!("Failed to parse inner event: {e}"); + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to parse inner event" + ); continue; } } } - Err(e) => { - tracing::error!("Failed to decrypt: {e}"); + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to decrypt" + ); continue; } } } else { if encryption_mode == EncryptionMode::Required { tracing::warn!( - pubkey = %event.pubkey, + target: LOG_TARGET, + sender_pubkey = %event.pubkey.to_hex(), "Received unencrypted message but encryption is required" ); continue; @@ -543,7 +675,11 @@ impl NostrServerTransport { let mcp_msg = match serializers::nostr_event_to_mcp_message(&content) { Some(msg) => msg, None => { - tracing::warn!("Invalid MCP message from {sender_pubkey}"); + tracing::warn!( + target: LOG_TARGET, + sender_pubkey = %sender_pubkey, + "Invalid MCP message" + ); continue; } }; @@ -565,8 +701,9 @@ impl NostrServerTransport { if !allowed_pubkeys.contains(&sender_pubkey) && !is_excluded { tracing::warn!( - pubkey = %sender_pubkey, - method = %method, + target: LOG_TARGET, + sender_pubkey = %sender_pubkey, + method = method, "Unauthorized request" ); continue; @@ -647,7 +784,11 @@ impl NostrServerTransport { for event_id in session.event_to_progress_token.keys() { event_map.remove(event_id); } - tracing::debug!(client = %pubkey, "Session expired"); + tracing::debug!( + target: LOG_TARGET, + client_pubkey = %pubkey, + "Session expired" + ); cleaned += 1; false } else { @@ -882,5 +1023,6 @@ mod tests { assert_eq!(config.cleanup_interval, Duration::from_secs(60)); assert_eq!(config.session_timeout, Duration::from_secs(300)); assert!(config.server_info.is_none()); + assert!(config.log_file_path.is_none()); } } From bbe369d72ea5f4585fbd5bac5b94a95f75c01767 Mon Sep 17 00:00:00 2001 From: Kushagra Date: Tue, 7 Apr 2026 03:48:17 +0530 Subject: [PATCH 019/116] feat: added exmaples with log files --- Cargo.toml | 2 +- examples/gateway.rs | 23 ++++++++++++++++++++++- examples/proxy.rs | 35 ++++++++++++++++++++++++++++++----- src/core/constants.rs | 1 - 4 files changed, 53 insertions(+), 8 deletions(-) diff --git a/Cargo.toml b/Cargo.toml index 0ca4b98..e4e03ba 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -23,6 +23,7 @@ nostr-sdk = { version = "0.43", features = ["nip59"] } # Logging tracing = "0.1" +tracing-subscriber = { version = "0.3", features = ["env-filter"] } # Optional MCP integration (Rust equivalent to TS @modelcontextprotocol/sdk) rmcp = { version = "0.16.0", features = ["server", "client", "macros", "transport-worker"], optional = true } @@ -34,6 +35,5 @@ rmcp = ["dep:rmcp"] [dev-dependencies] tokio-test = "0.4" -tracing-subscriber = { version = "0.3", features = ["env-filter"] } anyhow = "1" schemars = "0.8" diff --git a/examples/gateway.rs b/examples/gateway.rs index 2effaba..41543d1 100644 --- a/examples/gateway.rs +++ b/examples/gateway.rs @@ -2,6 +2,8 @@ //! //! This demonstrates how to create a ContextVM gateway that receives //! MCP requests over Nostr and responds to them. +//! +//! Usage: cargo run --example gateway -- [--log-file ] use contextvm_sdk::core::types::*; use contextvm_sdk::gateway::{GatewayConfig, NostrMCPGateway}; @@ -10,7 +12,25 @@ use contextvm_sdk::transport::server::NostrServerTransportConfig; #[tokio::main] async fn main() -> contextvm_sdk::Result<()> { - tracing_subscriber::fmt::init(); + let args: Vec = std::env::args().skip(1).collect(); + let mut log_file_path: Option = None; + + let mut index = 0; + while index < args.len() { + match args[index].as_str() { + "--log-file" => { + index += 1; + let Some(path) = args.get(index) else { + panic!("Usage: gateway [--log-file ]"); + }; + log_file_path = Some(path.clone()); + } + other => { + panic!("Unknown argument: {other}. Usage: gateway [--log-file ]"); + } + } + index += 1; + } // Generate ephemeral keys for this session let keys = signer::generate(); @@ -26,6 +46,7 @@ async fn main() -> contextvm_sdk::Result<()> { ..Default::default() }), is_announced_server: true, + log_file_path, ..Default::default() }, }; diff --git a/examples/proxy.rs b/examples/proxy.rs index c0fcd55..da5a63e 100644 --- a/examples/proxy.rs +++ b/examples/proxy.rs @@ -1,6 +1,6 @@ //! Example: Connect to a remote MCP server via Nostr and call tools/list. //! -//! Usage: cargo run --example proxy -- +//! Usage: cargo run --example proxy -- [--log-file ] use contextvm_sdk::core::types::*; use contextvm_sdk::proxy::{NostrMCPProxy, ProxyConfig}; @@ -8,11 +8,35 @@ use contextvm_sdk::signer; use contextvm_sdk::transport::client::NostrClientTransportConfig; #[tokio::main] async fn main() -> contextvm_sdk::Result<()> { - tracing_subscriber::fmt::init(); + let args: Vec = std::env::args().skip(1).collect(); + let mut server_pubkey_hex: Option = None; + let mut log_file_path: Option = None; - let server_pubkey_hex = std::env::args() - .nth(1) - .expect("Usage: proxy "); + let mut index = 0; + while index < args.len() { + match args[index].as_str() { + "--log-file" => { + index += 1; + let Some(path) = args.get(index) else { + panic!("Usage: proxy [--log-file ]"); + }; + log_file_path = Some(path.clone()); + } + value => { + if server_pubkey_hex.is_none() { + server_pubkey_hex = Some(value.to_string()); + } else { + panic!( + "Unknown argument: {value}. Usage: proxy [--log-file ]" + ); + } + } + } + index += 1; + } + + let server_pubkey_hex = + server_pubkey_hex.expect("Usage: proxy [--log-file ]"); let keys = signer::generate(); println!("Client pubkey: {}", keys.public_key().to_hex()); @@ -22,6 +46,7 @@ async fn main() -> contextvm_sdk::Result<()> { relay_urls: vec!["wss://relay.damus.io".to_string()], server_pubkey: server_pubkey_hex, encryption_mode: EncryptionMode::Optional, + log_file_path, ..Default::default() }, }; diff --git a/src/core/constants.rs b/src/core/constants.rs index 85cf82b..870d165 100644 --- a/src/core/constants.rs +++ b/src/core/constants.rs @@ -109,7 +109,6 @@ pub const UNENCRYPTED_KINDS: &[u16] = &[ PROMPTS_LIST_KIND, ]; - #[cfg(feature = "rmcp")] pub fn mcp_protocol_version() -> &'static str { use std::sync::OnceLock; From 7f4785755d386cca3eeda1b1df661dcb3ec0d97b Mon Sep 17 00:00:00 2001 From: Kushagra Date: Tue, 7 Apr 2026 05:21:19 +0530 Subject: [PATCH 020/116] setup basic github workflow --- .github/workflows/rust.yml | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 .github/workflows/rust.yml diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml new file mode 100644 index 0000000..cc4327a --- /dev/null +++ b/.github/workflows/rust.yml @@ -0,0 +1,33 @@ +name: Rust CI + +on: + push: + branches: ["main"] + pull_request: + branches: ["main"] + +env: + CARGO_TERM_COLOR: always + +jobs: + ci: + runs-on: ubuntu-latest + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Install Rust + uses: dtolnay/rust-toolchain@stable + + - name: Cache dependencies + uses: Swatinem/rust-cache@v2 + + - name: Check + run: cargo check --all --all-features + + - name: Test + run: cargo test --all --all-features + + - name: Build + run: cargo build --verbose \ No newline at end of file From 75bb1abd42c8da8432e4f1c30c51071e1d33d26e Mon Sep 17 00:00:00 2001 From: Anshuman Singh Date: Tue, 7 Apr 2026 18:03:34 +0530 Subject: [PATCH 021/116] fix: verify inner event signatures after gift-wrap decryption --- src/encryption/mod.rs | 41 +++++++++++++++++++++++++++++++++++++++++ src/transport/client.rs | 4 ++++ src/transport/server.rs | 20 ++++++++++++++------ 3 files changed, 59 insertions(+), 6 deletions(-) diff --git a/src/encryption/mod.rs b/src/encryption/mod.rs index 0d5b369..088ca8b 100644 --- a/src/encryption/mod.rs +++ b/src/encryption/mod.rs @@ -264,4 +264,45 @@ mod tests { // (it uses an ephemeral key, like the JS SDK) assert_ne!(gift_wrap_event.pubkey, sender_keys.public_key()); } + + /// Regression: gift-wrapped inner events with a tampered pubkey must be + /// caught by `Event::verify()`. + #[tokio::test] + async fn test_forged_inner_event_detected_by_verify() { + let real_sender = Keys::generate(); + let impersonated = Keys::generate(); + let recipient = Keys::generate(); + + let mcp_content = r#"{"jsonrpc":"2.0","id":1,"method":"tools/list"}"#; + + // Step 1: build a legitimately signed inner event + let inner_event = EventBuilder::new(Kind::Custom(25910), mcp_content) + .tag(Tag::public_key(recipient.public_key())) + .sign_with_keys(&real_sender) + .unwrap(); + + // Step 2: tamper the pubkey (keep original, now-invalid, signature) + let mut forged_json: serde_json::Value = + serde_json::to_value(&inner_event).unwrap(); + forged_json["pubkey"] = + serde_json::Value::String(impersonated.public_key().to_hex()); + let forged_str = serde_json::to_string(&forged_json).unwrap(); + + // Step 3: gift-wrap the forged payload + let (gift_wrap, _) = + create_simple_gift_wrap(&forged_str, &recipient.public_key()).await; + + // Decrypt + parse both succeed — the forgery is syntactically valid + let decrypted = decrypt_gift_wrap_single_layer(&recipient, &gift_wrap) + .await + .unwrap(); + let parsed: Event = serde_json::from_str(&decrypted).unwrap(); + assert_eq!(parsed.pubkey, impersonated.public_key()); + + // Signature verification catches the tampered pubkey + assert!( + parsed.verify().is_err(), + "forged inner event must fail signature verification" + ); + } } diff --git a/src/transport/client.rs b/src/transport/client.rs index 1cc1a0e..cef1948 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -204,6 +204,10 @@ impl NostrClientTransport { Ok(decrypted_json) => { match serde_json::from_str::(&decrypted_json) { Ok(inner) => { + if let Err(e) = inner.verify() { + tracing::warn!("Inner event signature verification failed: {e}"); + continue; + } let e_tag = serializers::get_tag_value(&inner.tags, "e"); (inner.content, inner.pubkey, e_tag) } diff --git a/src/transport/server.rs b/src/transport/server.rs index 4ccbe15..82f0552 100644 --- a/src/transport/server.rs +++ b/src/transport/server.rs @@ -506,12 +506,20 @@ impl NostrServerTransport { // Use the INNER event's ID for correlation — the client // registers the inner event ID in its correlation store. match serde_json::from_str::(&decrypted_json) { - Ok(inner) => ( - inner.content, - inner.pubkey.to_hex(), - inner.id.to_hex(), - true, - ), + Ok(inner) => { + if let Err(e) = inner.verify() { + tracing::warn!( + "Inner event signature verification failed: {e}" + ); + continue; + } + ( + inner.content, + inner.pubkey.to_hex(), + inner.id.to_hex(), + true, + ) + } Err(e) => { tracing::error!("Failed to parse inner event: {e}"); continue; From 860834070c359503afa570464ed6665765a452e5 Mon Sep 17 00:00:00 2001 From: Harsh Date: Tue, 7 Apr 2026 17:55:37 +0530 Subject: [PATCH 022/116] test: add conformance tests for initialization flow wire format --- tests/conformance_wire_format.rs | 183 +++++++++++++++++++++++++++++++ 1 file changed, 183 insertions(+) create mode 100644 tests/conformance_wire_format.rs diff --git a/tests/conformance_wire_format.rs b/tests/conformance_wire_format.rs new file mode 100644 index 0000000..697376a --- /dev/null +++ b/tests/conformance_wire_format.rs @@ -0,0 +1,183 @@ +//! Conformance tests for ContextVM wire format: MCP JSON-RPC carried in Nostr kind 25910 events. +//! +//! These mirror the layering style of `src/rmcp_transport/pipeline_tests.rs`: build the JSON-RPC +//! payload, serialize through the same helpers the transport uses (`mcp_to_nostr_event`, tag +//! builders from [`BaseTransport`]), sign with nostr-sdk, then assert on kind, tags, and content. + +use contextvm_sdk::core::constants::{ + mcp_protocol_version, tags, CTXVM_MESSAGES_KIND, INITIALIZE_METHOD, + NOTIFICATIONS_INITIALIZED_METHOD, +}; +use contextvm_sdk::core::serializers; +use contextvm_sdk::core::types::{ + JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, +}; +use contextvm_sdk::transport::base::BaseTransport; +use nostr_sdk::prelude::*; + +fn assert_ctxvm_message_kind(event: &Event) { + assert_eq!( + event.kind, + Kind::Custom(CTXVM_MESSAGES_KIND), + "ContextVM MCP messages must use kind {}", + CTXVM_MESSAGES_KIND + ); +} + +fn p_tag_hex(event: &Event) -> Option { + serializers::get_tag_value(&event.tags, tags::PUBKEY) +} + +fn e_tag_hex(event: &Event) -> Option { + serializers::get_tag_value(&event.tags, tags::EVENT_ID) +} + +// ── Initialize request ─────────────────────────────────────────────────────── + +#[test] +fn ctxvm_initialize_request_has_kind_p_tag_and_jsonrpc_initialize() { + let server_keys = Keys::generate(); + let server_pk = server_keys.public_key(); + + let init_req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: INITIALIZE_METHOD.to_string(), + params: Some(serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "capabilities": {}, + "clientInfo": { "name": "conformance-test", "version": "0.0.0" } + })), + }); + + let recipient_tags = BaseTransport::create_recipient_tags(&server_pk); + let builder = serializers::mcp_to_nostr_event(&init_req, CTXVM_MESSAGES_KIND, recipient_tags) + .expect("initialize request should serialize to event content"); + + let client_keys = Keys::generate(); + let event = builder + .sign_with_keys(&client_keys) + .expect("sign initialize request event"); + + assert_ctxvm_message_kind(&event); + assert_eq!( + p_tag_hex(&event), + Some(server_pk.to_hex()), + "initialize request must target the server via p tag" + ); + + let msg = serializers::nostr_event_to_mcp_message(&event.content) + .expect("event content should be valid JSON-RPC"); + assert!(msg.is_request()); + assert_eq!(msg.method(), Some(INITIALIZE_METHOD)); + + // Parse at the raw JSON level to verify wire format independently of the typed deserializer. + let v: serde_json::Value = + serde_json::from_str(&event.content).expect("content must be JSON object"); + assert_eq!(v["jsonrpc"], "2.0"); + assert_eq!(v["id"], serde_json::json!(1)); +} + +// ── Initialize response ────────────────────────────────────────────────────── + +#[test] +fn ctxvm_initialize_response_has_kind_e_tag_and_result_protocol_version() { + let server_keys = Keys::generate(); + let server_pk = server_keys.public_key(); + let client_keys = Keys::generate(); + let client_pk = client_keys.public_key(); + + // Signed request event provides the Nostr event id referenced by e on the response. + let init_req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("corr-1"), + method: INITIALIZE_METHOD.to_string(), + params: Some(serde_json::json!({})), + }); + let recipient_tags = BaseTransport::create_recipient_tags(&server_pk); + let request_event = serializers::mcp_to_nostr_event(&init_req, CTXVM_MESSAGES_KIND, recipient_tags) + .expect("request event for response correlation should serialize") + .sign_with_keys(&client_keys) + .expect("sign request event for correlation"); + + let init_resp = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("corr-1"), + result: serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "serverInfo": { + "name": "conformance-test-server", + "version": "0.0.0" + }, + "capabilities": {} + }), + }); + + let response_tags = BaseTransport::create_response_tags(&client_pk, &request_event.id); + let response_event = + serializers::mcp_to_nostr_event(&init_resp, CTXVM_MESSAGES_KIND, response_tags) + .expect("initialize response should serialize") + .sign_with_keys(&server_keys) + .expect("sign initialize response event"); + + assert_ctxvm_message_kind(&response_event); + assert_eq!( + p_tag_hex(&response_event), + Some(client_pk.to_hex()), + "initialize response must route back to the client via p tag" + ); + assert_eq!( + e_tag_hex(&response_event), + Some(request_event.id.to_hex()), + "initialize response must correlate to the request Nostr event via e tag" + ); + + let v: serde_json::Value = + serde_json::from_str(&response_event.content).expect("content must be JSON"); + assert_eq!(v["jsonrpc"], "2.0"); + assert_eq!(v["id"], serde_json::json!("corr-1")); + assert!(v["result"]["protocolVersion"].is_string()); + assert!(v["result"]["serverInfo"]["name"].is_string()); +} + +// ── notifications/initialized ────────────────────────────────────────────── + +#[test] +fn ctxvm_notifications_initialized_has_kind_p_tag_and_method() { + let server_keys = Keys::generate(); + let server_pk = server_keys.public_key(); + let client_keys = Keys::generate(); + + let notif = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: NOTIFICATIONS_INITIALIZED_METHOD.to_string(), + params: None, + }); + + let recipient_tags = BaseTransport::create_recipient_tags(&server_pk); + let event = serializers::mcp_to_nostr_event(¬if, CTXVM_MESSAGES_KIND, recipient_tags) + .expect("notification should serialize") + // Client sends this to the server; signer must differ from `p` so the tag is not stripped. + .sign_with_keys(&client_keys) + .expect("sign initialized notification"); + + assert_ctxvm_message_kind(&event); + assert_eq!( + p_tag_hex(&event), + Some(server_pk.to_hex()), + "initialized notification must include server p tag" + ); + + let msg = serializers::nostr_event_to_mcp_message(&event.content).expect("parse content"); + assert!(msg.is_notification()); + assert_eq!(msg.method(), Some(NOTIFICATIONS_INITIALIZED_METHOD)); + + // Parse at the raw JSON level to verify wire format independently of the typed deserializer. + let v: serde_json::Value = + serde_json::from_str(&event.content).expect("content must be JSON object"); + assert_eq!(v["jsonrpc"], "2.0"); + assert!( + v.get("id").map_or(true, serde_json::Value::is_null), + "JSON-RPC notifications must not include an id" + ); +} From c3a90736199681d37a0d584160d289913febc83b Mon Sep 17 00:00:00 2001 From: Anshuman Singh Date: Tue, 7 Apr 2026 18:33:03 +0530 Subject: [PATCH 023/116] fix: resolve all clippy warnings, remove orphaned doc comment and duplicate constant - Remove KIND_GIFT_WRAP (duplicate of GIFT_WRAP_KIND); update usage in encryption tests - Remove orphaned doc comment that was attached to the wrong item (DEFAULT_LRU_SIZE) - Promote 6 const-value range assertions from runtime tests to a compile-time const block cargo clippy --all-targets now reports 0 warnings. All 101 tests pass. --- src/core/constants.rs | 40 +++++++++++++--------------------------- src/encryption/mod.rs | 4 ++-- 2 files changed, 15 insertions(+), 29 deletions(-) diff --git a/src/core/constants.rs b/src/core/constants.rs index 85cf82b..e720fb5 100644 --- a/src/core/constants.rs +++ b/src/core/constants.rs @@ -33,7 +33,6 @@ pub const RESOURCETEMPLATES_LIST_KIND: u16 = 11319; /// Prompts list (addressable, kind 11320) pub const PROMPTS_LIST_KIND: u16 = 11320; -pub const KIND_GIFT_WRAP: u16 = 1059; /// Nostr tag constants pub mod tags { /// Public key tag @@ -70,11 +69,6 @@ pub mod tags { /// Maximum message size (1MB) pub const MAX_MESSAGE_SIZE: usize = 1024 * 1024; -/// MCP protocol version string used in initialize responses. -/// -/// Matches the `protocolVersion` field of the `InitializeResult` JSON-RPC response. -/// Keep this in sync with the MCP spec and rmcp's `ProtocolVersion::LATEST`. - /// Default LRU cache size for deduplication pub const DEFAULT_LRU_SIZE: usize = 5000; @@ -124,6 +118,19 @@ pub const fn mcp_protocol_version() -> &'static str { "2025-11-25" } +// Compile-time range checks (NIP-01 kind ranges). +// Placed at module level so violations are caught in every build, not just `cargo test`. +const _: () = { + // Ephemeral events: 20000 <= kind < 30000 + assert!(EPHEMERAL_GIFT_WRAP_KIND >= 20000); + assert!(EPHEMERAL_GIFT_WRAP_KIND < 30000); + assert!(CTXVM_MESSAGES_KIND >= 20000); + assert!(CTXVM_MESSAGES_KIND < 30000); + // Replaceable events: 10000 <= kind < 20000 + assert!(RELAY_LIST_METADATA_KIND >= 10000); + assert!(RELAY_LIST_METADATA_KIND < 20000); +}; + #[cfg(test)] mod tests { use super::*; @@ -158,27 +165,6 @@ mod tests { ); } - #[test] - fn test_ephemeral_gift_wrap_in_ephemeral_range() { - // NIP-01: ephemeral events are 20000 <= kind < 30000 - assert!(EPHEMERAL_GIFT_WRAP_KIND >= 20000); - assert!(EPHEMERAL_GIFT_WRAP_KIND < 30000); - } - - #[test] - fn test_ctxvm_messages_in_ephemeral_range() { - // NIP-01: ephemeral events are 20000 <= kind < 30000 - assert!(CTXVM_MESSAGES_KIND >= 20000); - assert!(CTXVM_MESSAGES_KIND < 30000); - } - - #[test] - fn test_relay_list_metadata_in_replaceable_range() { - // NIP-01: replaceable events are 10000 <= kind < 20000 - assert!(RELAY_LIST_METADATA_KIND >= 10000); - assert!(RELAY_LIST_METADATA_KIND < 20000); - } - #[test] fn test_announcement_kinds_in_addressable_range() { // NIP-01: addressable events are 30000 <= kind < 40000 diff --git a/src/encryption/mod.rs b/src/encryption/mod.rs index 0d5b369..2798a57 100644 --- a/src/encryption/mod.rs +++ b/src/encryption/mod.rs @@ -111,7 +111,7 @@ pub async fn gift_wrap( #[cfg(test)] mod tests { - use crate::core::constants::KIND_GIFT_WRAP; + use crate::core::constants::GIFT_WRAP_KIND; use super::*; @@ -153,7 +153,7 @@ mod tests { .unwrap(); // Build kind 1059 event - let builder = EventBuilder::new(Kind::from(KIND_GIFT_WRAP), encrypted) + let builder = EventBuilder::new(Kind::from(GIFT_WRAP_KIND), encrypted) .tag(Tag::public_key(*recipient)); let event = builder.sign_with_keys(&ephemeral).unwrap(); From 3f00ece9814afb3b4066ef984c96b94d33213d7f Mon Sep 17 00:00:00 2001 From: Anshuman Singh Date: Wed, 8 Apr 2026 03:18:11 +0530 Subject: [PATCH 024/116] fix: route event loops through validated message parsing Both event loops called serializers::nostr_event_to_mcp_message() directly, bypassing size validation and JSON-RPC 2.0 structure checks. Replace with validation::validate_and_parse() which enforces both. --- src/core/validation.rs | 37 +++++++++++++++++++++++++++++++++++++ src/transport/base.rs | 8 +------- src/transport/client.rs | 3 ++- src/transport/server.rs | 4 ++-- 4 files changed, 42 insertions(+), 10 deletions(-) diff --git a/src/core/validation.rs b/src/core/validation.rs index d409b7b..9e6dc5d 100644 --- a/src/core/validation.rs +++ b/src/core/validation.rs @@ -8,6 +8,17 @@ pub fn validate_message_size(content: &str) -> bool { content.len() <= MAX_MESSAGE_SIZE } +/// Validate size and structure, then parse into a [`JsonRpcMessage`]. +pub fn validate_and_parse(content: &str) -> Option { + if !validate_message_size(content) { + tracing::warn!("Message size validation failed: {} bytes", content.len()); + return None; + } + + let value: serde_json::Value = serde_json::from_str(content).ok()?; + validate_message(&value) +} + /// Validate that a JSON value is a well-formed JSON-RPC 2.0 message. /// /// Checks: @@ -61,4 +72,30 @@ mod tests { let big = "x".repeat(MAX_MESSAGE_SIZE + 1); assert!(!validate_message_size(&big)); } + + #[test] + fn test_validate_and_parse_valid_request() { + let content = r#"{"jsonrpc":"2.0","id":1,"method":"tools/list"}"#; + let msg = validate_and_parse(content).unwrap(); + assert!(msg.is_request()); + assert_eq!(msg.method(), Some("tools/list")); + } + + #[test] + fn test_validate_and_parse_rejects_oversized() { + let padding = "x".repeat(MAX_MESSAGE_SIZE); + let content = format!(r#"{{"jsonrpc":"2.0","id":1,"method":"{}"}}"#, padding); + assert!(validate_and_parse(&content).is_none()); + } + + #[test] + fn test_validate_and_parse_rejects_invalid_version() { + let content = r#"{"jsonrpc":"1.0","id":1,"method":"test"}"#; + assert!(validate_and_parse(content).is_none()); + } + + #[test] + fn test_validate_and_parse_rejects_invalid_json() { + assert!(validate_and_parse("not json").is_none()); + } } diff --git a/src/transport/base.rs b/src/transport/base.rs index 419a4b6..58f762b 100644 --- a/src/transport/base.rs +++ b/src/transport/base.rs @@ -87,13 +87,7 @@ impl BaseTransport { /// Convert a Nostr event to an MCP message with validation. pub fn convert_event_to_mcp(&self, content: &str) -> Option { - if !validation::validate_message_size(content) { - tracing::warn!("Message size validation failed: {} bytes", content.len()); - return None; - } - - let value: serde_json::Value = serde_json::from_str(content).ok()?; - validation::validate_message(&value) + validation::validate_and_parse(content) } /// Create a signed Nostr event for an MCP message. diff --git a/src/transport/client.rs b/src/transport/client.rs index cef1948..8ef111e 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -14,6 +14,7 @@ use crate::core::constants::*; use crate::core::error::{Error, Result}; use crate::core::serializers; use crate::core::types::*; +use crate::core::validation; use crate::encryption; use crate::relay::RelayPool; use crate::transport::base::BaseTransport; @@ -244,7 +245,7 @@ impl NostrClientTransport { // Parse MCP message if let Some(mcp_msg) = - serializers::nostr_event_to_mcp_message(&actual_event_content) + validation::validate_and_parse(&actual_event_content) { // Clean up pending request if let Some(ref correlated_id) = e_tag { diff --git a/src/transport/server.rs b/src/transport/server.rs index 82f0552..a17ed51 100644 --- a/src/transport/server.rs +++ b/src/transport/server.rs @@ -13,8 +13,8 @@ use tokio::sync::RwLock; use crate::core::constants::*; use crate::core::error::{Error, Result}; -use crate::core::serializers; use crate::core::types::*; +use crate::core::validation; use crate::encryption; use crate::relay::RelayPool; use crate::transport::base::BaseTransport; @@ -548,7 +548,7 @@ impl NostrServerTransport { }; // Parse MCP message - let mcp_msg = match serializers::nostr_event_to_mcp_message(&content) { + let mcp_msg = match validation::validate_and_parse(&content) { Some(msg) => msg, None => { tracing::warn!("Invalid MCP message from {sender_pubkey}"); From 68b47118dcad448235654299a5c939021965d3bd Mon Sep 17 00:00:00 2001 From: Harsh Date: Wed, 8 Apr 2026 04:00:31 +0530 Subject: [PATCH 025/116] test: add wire format conformance tests for tools/list, tools/call, and server announcement --- tests/conformance_wire_format.rs | 284 ++++++++++++++++++++++++++++++- 1 file changed, 282 insertions(+), 2 deletions(-) diff --git a/tests/conformance_wire_format.rs b/tests/conformance_wire_format.rs index 697376a..ee039fc 100644 --- a/tests/conformance_wire_format.rs +++ b/tests/conformance_wire_format.rs @@ -6,7 +6,7 @@ use contextvm_sdk::core::constants::{ mcp_protocol_version, tags, CTXVM_MESSAGES_KIND, INITIALIZE_METHOD, - NOTIFICATIONS_INITIALIZED_METHOD, + NOTIFICATIONS_INITIALIZED_METHOD, SERVER_ANNOUNCEMENT_KIND, }; use contextvm_sdk::core::serializers; use contextvm_sdk::core::types::{ @@ -177,7 +177,287 @@ fn ctxvm_notifications_initialized_has_kind_p_tag_and_method() { serde_json::from_str(&event.content).expect("content must be JSON object"); assert_eq!(v["jsonrpc"], "2.0"); assert!( - v.get("id").map_or(true, serde_json::Value::is_null), + v.get("id").is_none_or(serde_json::Value::is_null), "JSON-RPC notifications must not include an id" ); } + +// ── tools/list request ─────────────────────────────────────────────────────── + +#[test] +fn ctxvm_tools_list_request_has_kind_p_tag_and_method() { + let server_keys = Keys::generate(); + let server_pk = server_keys.public_key(); + + let list_req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(2), + method: "tools/list".to_string(), + params: Some(serde_json::json!({})), + }); + + let recipient_tags = BaseTransport::create_recipient_tags(&server_pk); + let builder = serializers::mcp_to_nostr_event(&list_req, CTXVM_MESSAGES_KIND, recipient_tags) + .expect("tools/list request should serialize to event content"); + + let client_keys = Keys::generate(); + let event = builder + .sign_with_keys(&client_keys) + .expect("sign tools/list request event"); + + assert_ctxvm_message_kind(&event); + assert_eq!( + p_tag_hex(&event), + Some(server_pk.to_hex()), + "tools/list request must target the server via p tag" + ); + + let msg = serializers::nostr_event_to_mcp_message(&event.content) + .expect("event content should be valid JSON-RPC"); + assert!(msg.is_request()); + assert_eq!(msg.method(), Some("tools/list")); + + let v: serde_json::Value = + serde_json::from_str(&event.content).expect("content must be JSON object"); + assert_eq!(v["jsonrpc"], "2.0"); + assert_eq!(v["id"], serde_json::json!(2)); +} + +// ── tools/call request ─────────────────────────────────────────────────────── + +#[test] +fn ctxvm_tools_call_request_has_kind_p_tag_method_and_params() { + let server_keys = Keys::generate(); + let server_pk = server_keys.public_key(); + + let call_req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(3), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ + "name": "add", + "arguments": { "a": 5, "b": 3 } + })), + }); + + let recipient_tags = BaseTransport::create_recipient_tags(&server_pk); + let builder = serializers::mcp_to_nostr_event(&call_req, CTXVM_MESSAGES_KIND, recipient_tags) + .expect("tools/call request should serialize to event content"); + + let client_keys = Keys::generate(); + let event = builder + .sign_with_keys(&client_keys) + .expect("sign tools/call request event"); + + assert_ctxvm_message_kind(&event); + assert_eq!( + p_tag_hex(&event), + Some(server_pk.to_hex()), + "tools/call request must target the server via p tag" + ); + + let msg = serializers::nostr_event_to_mcp_message(&event.content) + .expect("event content should be valid JSON-RPC"); + assert!(msg.is_request()); + assert_eq!(msg.method(), Some("tools/call")); + + let v: serde_json::Value = + serde_json::from_str(&event.content).expect("content must be JSON object"); + assert_eq!(v["jsonrpc"], "2.0"); + assert_eq!(v["id"], serde_json::json!(3)); + assert_eq!(v["params"]["name"], "add"); + assert!( + v["params"]["arguments"].is_object(), + "tools/call params.arguments must be an object on the wire" + ); +} + +// ── tools/list response ─────────────────────────────────────────────────────── + +#[test] +fn ctxvm_tools_list_response_has_kind_e_tag_and_result() { + let server_keys = Keys::generate(); + let server_pk = server_keys.public_key(); + let client_keys = Keys::generate(); + let client_pk = client_keys.public_key(); + + let list_req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("corr-tools-list"), + method: "tools/list".to_string(), + params: Some(serde_json::json!({})), + }); + let recipient_tags = BaseTransport::create_recipient_tags(&server_pk); + let request_event = + serializers::mcp_to_nostr_event(&list_req, CTXVM_MESSAGES_KIND, recipient_tags) + .expect("tools/list request for response correlation should serialize") + .sign_with_keys(&client_keys) + .expect("sign tools/list request event for correlation"); + + let list_resp = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("corr-tools-list"), + result: serde_json::json!({ "tools": [] }), + }); + + let response_tags = BaseTransport::create_response_tags(&client_pk, &request_event.id); + let response_event = + serializers::mcp_to_nostr_event(&list_resp, CTXVM_MESSAGES_KIND, response_tags) + .expect("tools/list response should serialize") + .sign_with_keys(&server_keys) + .expect("sign tools/list response event"); + + assert_ctxvm_message_kind(&response_event); + assert_eq!( + p_tag_hex(&response_event), + Some(client_pk.to_hex()), + "tools/list response must route back to the client via p tag" + ); + assert_eq!( + e_tag_hex(&response_event), + Some(request_event.id.to_hex()), + "tools/list response must correlate to the request Nostr event via e tag" + ); + + let v: serde_json::Value = + serde_json::from_str(&response_event.content).expect("content must be JSON"); + assert_eq!(v["jsonrpc"], "2.0"); + assert_eq!(v["id"], serde_json::json!("corr-tools-list")); + assert!(v["result"]["tools"].is_array()); +} + +// ── tools/call response ─────────────────────────────────────────────────────── + +#[test] +fn ctxvm_tools_call_response_has_kind_e_tag_and_result() { + let server_keys = Keys::generate(); + let server_pk = server_keys.public_key(); + let client_keys = Keys::generate(); + let client_pk = client_keys.public_key(); + + let call_req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("corr-tools-call"), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ + "name": "add", + "arguments": { "a": 5, "b": 3 } + })), + }); + let recipient_tags = BaseTransport::create_recipient_tags(&server_pk); + let request_event = + serializers::mcp_to_nostr_event(&call_req, CTXVM_MESSAGES_KIND, recipient_tags) + .expect("tools/call request for response correlation should serialize") + .sign_with_keys(&client_keys) + .expect("sign tools/call request event for correlation"); + + let call_resp = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("corr-tools-call"), + result: serde_json::json!({ + "content": [{ "type": "text", "text": "8" }], + "isError": false + }), + }); + + let response_tags = BaseTransport::create_response_tags(&client_pk, &request_event.id); + let response_event = + serializers::mcp_to_nostr_event(&call_resp, CTXVM_MESSAGES_KIND, response_tags) + .expect("tools/call response should serialize") + .sign_with_keys(&server_keys) + .expect("sign tools/call response event"); + + assert_ctxvm_message_kind(&response_event); + assert_eq!( + p_tag_hex(&response_event), + Some(client_pk.to_hex()), + "tools/call response must route back to the client via p tag" + ); + assert_eq!( + e_tag_hex(&response_event), + Some(request_event.id.to_hex()), + "tools/call response must correlate to the request Nostr event via e tag" + ); + + let v: serde_json::Value = + serde_json::from_str(&response_event.content).expect("content must be JSON"); + assert_eq!(v["jsonrpc"], "2.0"); + assert_eq!(v["id"], serde_json::json!("corr-tools-call")); + assert!(v["result"]["content"].is_array()); + assert_eq!(v["result"]["isError"], serde_json::json!(false)); +} + +// ── Server announcement (kind 11316) ────────────────────────────────────────── + +#[test] +fn ctxvm_server_announcement_has_kind_and_required_tags() { + let server_keys = Keys::generate(); + + // MCP-flavoured JSON for wire conformance; not the same content shape as `NostrServerTransport::announce` (flat `ServerInfo` only). + let content = serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "serverInfo": { "name": "Test Server" }, + "capabilities": {}, + }); + let content_str = serde_json::to_string(&content).expect("announcement content must serialize"); + + let announcement_tags = vec![ + Tag::custom( + TagKind::Custom(tags::NAME.into()), + vec!["Test Server".to_string()], + ), + Tag::custom( + TagKind::Custom(tags::ABOUT.into()), + vec!["A test server".to_string()], + ), + Tag::custom( + TagKind::Custom(tags::WEBSITE.into()), + vec!["http://localhost".to_string()], + ), + Tag::custom( + TagKind::Custom(tags::SUPPORT_ENCRYPTION.into()), + Vec::::new(), + ), + ]; + + let event = EventBuilder::new(Kind::Custom(SERVER_ANNOUNCEMENT_KIND), content_str) + .tags(announcement_tags) + .sign_with_keys(&server_keys) + .expect("sign server announcement event"); + + assert_eq!( + event.kind, + Kind::Custom(SERVER_ANNOUNCEMENT_KIND), + "server announcement must use kind {}", + SERVER_ANNOUNCEMENT_KIND + ); + assert_eq!(event.pubkey, server_keys.public_key()); + + assert_eq!( + serializers::get_tag_value(&event.tags, tags::NAME).as_deref(), + Some("Test Server") + ); + assert_eq!( + serializers::get_tag_value(&event.tags, tags::ABOUT).as_deref(), + Some("A test server") + ); + assert_eq!( + serializers::get_tag_value(&event.tags, tags::WEBSITE).as_deref(), + Some("http://localhost") + ); + + assert!( + event.tags.iter().any(|t| { + let parts = t.clone().to_vec(); + parts.len() == 1 + && parts.first().map(|s| s.as_str()) == Some(tags::SUPPORT_ENCRYPTION) + }), + "support_encryption must be present as a single-element tag" + ); + + let v: serde_json::Value = + serde_json::from_str(&event.content).expect("announcement content must be JSON"); + assert_eq!(v["protocolVersion"], mcp_protocol_version()); + assert_eq!(v["serverInfo"]["name"], "Test Server"); + assert!(v["capabilities"].is_object()); +} From dbd4484a40600537000a9be5df57620c9df168ad Mon Sep 17 00:00:00 2001 From: Kushagra Date: Wed, 8 Apr 2026 04:06:39 +0530 Subject: [PATCH 026/116] fix: made the log format across all the files consistent --- src/rmcp_transport/worker.rs | 37 ++++++++++++++++++++++++++++++------ src/transport/base.rs | 15 +++++++++++++-- 2 files changed, 44 insertions(+), 8 deletions(-) diff --git a/src/rmcp_transport/worker.rs b/src/rmcp_transport/worker.rs index 0d52db0..79bb3dd 100644 --- a/src/rmcp_transport/worker.rs +++ b/src/rmcp_transport/worker.rs @@ -16,6 +16,8 @@ use super::convert::{ rmcp_server_tx_to_internal, }; +const LOG_TARGET: &str = "contextvm_sdk::rmcp_transport::worker"; + /// rmcp server worker wrapper for ContextVM Nostr server transport. pub struct NostrServerWorker { transport: NostrServerTransport, @@ -95,6 +97,7 @@ impl Worker for NostrServerWorker { match &self.active_client_pubkey { Some(active) if active != &client_pubkey => { tracing::warn!( + target: LOG_TARGET, active_client = %active, ignored_client = %client_pubkey, "Ignoring message from second client: rmcp server worker currently supports one active client per worker" @@ -102,7 +105,11 @@ impl Worker for NostrServerWorker { continue; } None => { - tracing::info!(client_pubkey = %client_pubkey, "Binding rmcp server worker to first client session"); + tracing::info!( + target: LOG_TARGET, + client_pubkey = %client_pubkey, + "Binding rmcp server worker to first client session" + ); self.active_client_pubkey = Some(client_pubkey.clone()); } _ => {} @@ -114,7 +121,11 @@ impl Worker for NostrServerWorker { self.request_id_to_event_id.insert(request_key, event_id); } Err(e) => { - tracing::warn!("Failed to serialize request id for correlation map: {e}"); + tracing::warn!( + target: LOG_TARGET, + error = %e, + "Failed to serialize request id for correlation map" + ); } } } @@ -124,7 +135,10 @@ impl Worker for NostrServerWorker { break reason; } } else { - tracing::warn!("Failed to convert incoming server-side message to rmcp format"); + tracing::warn!( + target: LOG_TARGET, + "Failed to convert incoming server-side message to rmcp format" + ); } } outbound = context.recv_from_handler() => { @@ -147,7 +161,11 @@ impl Worker for NostrServerWorker { }; if let Err(e) = self.transport.close().await { - tracing::warn!("Failed to close server transport cleanly: {e}"); + tracing::warn!( + target: LOG_TARGET, + error = %e, + "Failed to close server transport cleanly" + ); } Err(quit_reason) @@ -220,7 +238,10 @@ impl Worker for NostrClientWorker { break reason; } } else { - tracing::warn!("Failed to convert incoming client-side message to rmcp format"); + tracing::warn!( + target: LOG_TARGET, + "Failed to convert incoming client-side message to rmcp format" + ); } } outbound = context.recv_from_handler() => { @@ -243,7 +264,11 @@ impl Worker for NostrClientWorker { }; if let Err(e) = self.transport.close().await { - tracing::warn!("Failed to close client transport cleanly: {e}"); + tracing::warn!( + target: LOG_TARGET, + error = %e, + "Failed to close client transport cleanly" + ); } Err(quit_reason) diff --git a/src/transport/base.rs b/src/transport/base.rs index 419a4b6..e0bd024 100644 --- a/src/transport/base.rs +++ b/src/transport/base.rs @@ -11,6 +11,8 @@ use crate::core::validation; use crate::encryption; use crate::relay::RelayPool; +const LOG_TARGET: &str = "contextvm_sdk::transport::base"; + /// Shared transport logic for both client and server. /// /// Handles relay connectivity, event signing/publishing, encryption decisions, @@ -88,7 +90,11 @@ impl BaseTransport { /// Convert a Nostr event to an MCP message with validation. pub fn convert_event_to_mcp(&self, content: &str) -> Option { if !validation::validate_message_size(content) { - tracing::warn!("Message size validation failed: {} bytes", content.len()); + tracing::warn!( + target: LOG_TARGET, + content_size_bytes = content.len(), + "Message size validation failed" + ); return None; } @@ -139,13 +145,18 @@ impl BaseTransport { encryption::gift_wrap_single_layer(&signer, recipient, &event_json).await?; self.relay_pool.publish_event(&gift_wrap_event).await?; tracing::debug!( + target: LOG_TARGET, signed_event_id = %signed_event_id, envelope_id = %gift_wrap_event.id, "Sent encrypted MCP message" ); } else { self.relay_pool.publish_event(&event).await?; - tracing::debug!(signed_event_id = %signed_event_id, "Sent unencrypted MCP message"); + tracing::debug!( + target: LOG_TARGET, + signed_event_id = %signed_event_id, + "Sent unencrypted MCP message" + ); } Ok(signed_event_id) From 4f5f91949e284f52871f3eed7e1f1cf4b64fc6c9 Mon Sep 17 00:00:00 2001 From: Kushagra Date: Wed, 8 Apr 2026 04:23:35 +0530 Subject: [PATCH 027/116] fix: fixed validation logic and improved consistency --- .github/workflows/rust.yml | 33 ++++++ src/core/constants.rs | 40 +++---- src/core/validation.rs | 37 +++++++ src/encryption/mod.rs | 45 +++++++- src/transport/base.rs | 12 +- src/transport/client.rs | 7 +- src/transport/server.rs | 24 ++-- tests/conformance_wire_format.rs | 183 +++++++++++++++++++++++++++++++ 8 files changed, 332 insertions(+), 49 deletions(-) create mode 100644 .github/workflows/rust.yml create mode 100644 tests/conformance_wire_format.rs diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml new file mode 100644 index 0000000..cc4327a --- /dev/null +++ b/.github/workflows/rust.yml @@ -0,0 +1,33 @@ +name: Rust CI + +on: + push: + branches: ["main"] + pull_request: + branches: ["main"] + +env: + CARGO_TERM_COLOR: always + +jobs: + ci: + runs-on: ubuntu-latest + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Install Rust + uses: dtolnay/rust-toolchain@stable + + - name: Cache dependencies + uses: Swatinem/rust-cache@v2 + + - name: Check + run: cargo check --all --all-features + + - name: Test + run: cargo test --all --all-features + + - name: Build + run: cargo build --verbose \ No newline at end of file diff --git a/src/core/constants.rs b/src/core/constants.rs index 870d165..f610637 100644 --- a/src/core/constants.rs +++ b/src/core/constants.rs @@ -33,7 +33,6 @@ pub const RESOURCETEMPLATES_LIST_KIND: u16 = 11319; /// Prompts list (addressable, kind 11320) pub const PROMPTS_LIST_KIND: u16 = 11320; -pub const KIND_GIFT_WRAP: u16 = 1059; /// Nostr tag constants pub mod tags { /// Public key tag @@ -70,11 +69,6 @@ pub mod tags { /// Maximum message size (1MB) pub const MAX_MESSAGE_SIZE: usize = 1024 * 1024; -/// MCP protocol version string used in initialize responses. -/// -/// Matches the `protocolVersion` field of the `InitializeResult` JSON-RPC response. -/// Keep this in sync with the MCP spec and rmcp's `ProtocolVersion::LATEST`. - /// Default LRU cache size for deduplication pub const DEFAULT_LRU_SIZE: usize = 5000; @@ -123,6 +117,19 @@ pub const fn mcp_protocol_version() -> &'static str { "2025-11-25" } +// Compile-time range checks (NIP-01 kind ranges). +// Placed at module level so violations are caught in every build, not just `cargo test`. +const _: () = { + // Ephemeral events: 20000 <= kind < 30000 + assert!(EPHEMERAL_GIFT_WRAP_KIND >= 20000); + assert!(EPHEMERAL_GIFT_WRAP_KIND < 30000); + assert!(CTXVM_MESSAGES_KIND >= 20000); + assert!(CTXVM_MESSAGES_KIND < 30000); + // Replaceable events: 10000 <= kind < 20000 + assert!(RELAY_LIST_METADATA_KIND >= 10000); + assert!(RELAY_LIST_METADATA_KIND < 20000); +}; + #[cfg(test)] mod tests { use super::*; @@ -157,27 +164,6 @@ mod tests { ); } - #[test] - fn test_ephemeral_gift_wrap_in_ephemeral_range() { - // NIP-01: ephemeral events are 20000 <= kind < 30000 - assert!(EPHEMERAL_GIFT_WRAP_KIND >= 20000); - assert!(EPHEMERAL_GIFT_WRAP_KIND < 30000); - } - - #[test] - fn test_ctxvm_messages_in_ephemeral_range() { - // NIP-01: ephemeral events are 20000 <= kind < 30000 - assert!(CTXVM_MESSAGES_KIND >= 20000); - assert!(CTXVM_MESSAGES_KIND < 30000); - } - - #[test] - fn test_relay_list_metadata_in_replaceable_range() { - // NIP-01: replaceable events are 10000 <= kind < 20000 - assert!(RELAY_LIST_METADATA_KIND >= 10000); - assert!(RELAY_LIST_METADATA_KIND < 20000); - } - #[test] fn test_announcement_kinds_in_addressable_range() { // NIP-01: addressable events are 30000 <= kind < 40000 diff --git a/src/core/validation.rs b/src/core/validation.rs index d409b7b..9e6dc5d 100644 --- a/src/core/validation.rs +++ b/src/core/validation.rs @@ -8,6 +8,17 @@ pub fn validate_message_size(content: &str) -> bool { content.len() <= MAX_MESSAGE_SIZE } +/// Validate size and structure, then parse into a [`JsonRpcMessage`]. +pub fn validate_and_parse(content: &str) -> Option { + if !validate_message_size(content) { + tracing::warn!("Message size validation failed: {} bytes", content.len()); + return None; + } + + let value: serde_json::Value = serde_json::from_str(content).ok()?; + validate_message(&value) +} + /// Validate that a JSON value is a well-formed JSON-RPC 2.0 message. /// /// Checks: @@ -61,4 +72,30 @@ mod tests { let big = "x".repeat(MAX_MESSAGE_SIZE + 1); assert!(!validate_message_size(&big)); } + + #[test] + fn test_validate_and_parse_valid_request() { + let content = r#"{"jsonrpc":"2.0","id":1,"method":"tools/list"}"#; + let msg = validate_and_parse(content).unwrap(); + assert!(msg.is_request()); + assert_eq!(msg.method(), Some("tools/list")); + } + + #[test] + fn test_validate_and_parse_rejects_oversized() { + let padding = "x".repeat(MAX_MESSAGE_SIZE); + let content = format!(r#"{{"jsonrpc":"2.0","id":1,"method":"{}"}}"#, padding); + assert!(validate_and_parse(&content).is_none()); + } + + #[test] + fn test_validate_and_parse_rejects_invalid_version() { + let content = r#"{"jsonrpc":"1.0","id":1,"method":"test"}"#; + assert!(validate_and_parse(content).is_none()); + } + + #[test] + fn test_validate_and_parse_rejects_invalid_json() { + assert!(validate_and_parse("not json").is_none()); + } } diff --git a/src/encryption/mod.rs b/src/encryption/mod.rs index 1e32426..a7a6d39 100644 --- a/src/encryption/mod.rs +++ b/src/encryption/mod.rs @@ -111,7 +111,7 @@ pub async fn gift_wrap( #[cfg(test)] mod tests { - use crate::core::constants::KIND_GIFT_WRAP; + use crate::core::constants::GIFT_WRAP_KIND; use super::*; @@ -150,7 +150,7 @@ mod tests { .unwrap(); // Build kind 1059 event - let builder = EventBuilder::new(Kind::from(KIND_GIFT_WRAP), encrypted) + let builder = EventBuilder::new(Kind::from(GIFT_WRAP_KIND), encrypted) .tag(Tag::public_key(*recipient)); let event = builder.sign_with_keys(&ephemeral).unwrap(); @@ -261,4 +261,45 @@ mod tests { // (it uses an ephemeral key, like the JS SDK) assert_ne!(gift_wrap_event.pubkey, sender_keys.public_key()); } + + /// Regression: gift-wrapped inner events with a tampered pubkey must be + /// caught by `Event::verify()`. + #[tokio::test] + async fn test_forged_inner_event_detected_by_verify() { + let real_sender = Keys::generate(); + let impersonated = Keys::generate(); + let recipient = Keys::generate(); + + let mcp_content = r#"{"jsonrpc":"2.0","id":1,"method":"tools/list"}"#; + + // Step 1: build a legitimately signed inner event + let inner_event = EventBuilder::new(Kind::Custom(25910), mcp_content) + .tag(Tag::public_key(recipient.public_key())) + .sign_with_keys(&real_sender) + .unwrap(); + + // Step 2: tamper the pubkey (keep original, now-invalid, signature) + let mut forged_json: serde_json::Value = + serde_json::to_value(&inner_event).unwrap(); + forged_json["pubkey"] = + serde_json::Value::String(impersonated.public_key().to_hex()); + let forged_str = serde_json::to_string(&forged_json).unwrap(); + + // Step 3: gift-wrap the forged payload + let (gift_wrap, _) = + create_simple_gift_wrap(&forged_str, &recipient.public_key()).await; + + // Decrypt + parse both succeed — the forgery is syntactically valid + let decrypted = decrypt_gift_wrap_single_layer(&recipient, &gift_wrap) + .await + .unwrap(); + let parsed: Event = serde_json::from_str(&decrypted).unwrap(); + assert_eq!(parsed.pubkey, impersonated.public_key()); + + // Signature verification catches the tampered pubkey + assert!( + parsed.verify().is_err(), + "forged inner event must fail signature verification" + ); + } } diff --git a/src/transport/base.rs b/src/transport/base.rs index e0bd024..2b34544 100644 --- a/src/transport/base.rs +++ b/src/transport/base.rs @@ -89,17 +89,7 @@ impl BaseTransport { /// Convert a Nostr event to an MCP message with validation. pub fn convert_event_to_mcp(&self, content: &str) -> Option { - if !validation::validate_message_size(content) { - tracing::warn!( - target: LOG_TARGET, - content_size_bytes = content.len(), - "Message size validation failed" - ); - return None; - } - - let value: serde_json::Value = serde_json::from_str(content).ok()?; - validation::validate_message(&value) + validation::validate_and_parse(content) } /// Create a signed Nostr event for an MCP message. diff --git a/src/transport/client.rs b/src/transport/client.rs index e41e518..db30252 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -14,6 +14,7 @@ use crate::core::constants::*; use crate::core::error::{Error, Result}; use crate::core::serializers; use crate::core::types::*; +use crate::core::validation; use crate::encryption; use crate::relay::RelayPool; use crate::transport::base::BaseTransport; @@ -291,6 +292,10 @@ impl NostrClientTransport { Ok(decrypted_json) => { match serde_json::from_str::(&decrypted_json) { Ok(inner) => { + if let Err(e) = inner.verify() { + tracing::warn!("Inner event signature verification failed: {e}"); + continue; + } let e_tag = serializers::get_tag_value(&inner.tags, "e"); (inner.content, inner.pubkey, e_tag) } @@ -344,7 +349,7 @@ impl NostrClientTransport { // Parse MCP message if let Some(mcp_msg) = - serializers::nostr_event_to_mcp_message(&actual_event_content) + validation::validate_and_parse(&actual_event_content) { // Clean up pending request if let Some(ref correlated_id) = e_tag { diff --git a/src/transport/server.rs b/src/transport/server.rs index dbf4520..69f9d3a 100644 --- a/src/transport/server.rs +++ b/src/transport/server.rs @@ -13,8 +13,8 @@ use tokio::sync::RwLock; use crate::core::constants::*; use crate::core::error::{Error, Result}; -use crate::core::serializers; use crate::core::types::*; +use crate::core::validation; use crate::encryption; use crate::relay::RelayPool; use crate::transport::base::BaseTransport; @@ -629,12 +629,20 @@ impl NostrServerTransport { // Use the INNER event's ID for correlation — the client // registers the inner event ID in its correlation store. match serde_json::from_str::(&decrypted_json) { - Ok(inner) => ( - inner.content, - inner.pubkey.to_hex(), - inner.id.to_hex(), - true, - ), + Ok(inner) => { + if let Err(e) = inner.verify() { + tracing::warn!( + "Inner event signature verification failed: {e}" + ); + continue; + } + ( + inner.content, + inner.pubkey.to_hex(), + inner.id.to_hex(), + true, + ) + } Err(error) => { tracing::error!( target: LOG_TARGET, @@ -672,7 +680,7 @@ impl NostrServerTransport { }; // Parse MCP message - let mcp_msg = match serializers::nostr_event_to_mcp_message(&content) { + let mcp_msg = match validation::validate_and_parse(&content) { Some(msg) => msg, None => { tracing::warn!( diff --git a/tests/conformance_wire_format.rs b/tests/conformance_wire_format.rs new file mode 100644 index 0000000..697376a --- /dev/null +++ b/tests/conformance_wire_format.rs @@ -0,0 +1,183 @@ +//! Conformance tests for ContextVM wire format: MCP JSON-RPC carried in Nostr kind 25910 events. +//! +//! These mirror the layering style of `src/rmcp_transport/pipeline_tests.rs`: build the JSON-RPC +//! payload, serialize through the same helpers the transport uses (`mcp_to_nostr_event`, tag +//! builders from [`BaseTransport`]), sign with nostr-sdk, then assert on kind, tags, and content. + +use contextvm_sdk::core::constants::{ + mcp_protocol_version, tags, CTXVM_MESSAGES_KIND, INITIALIZE_METHOD, + NOTIFICATIONS_INITIALIZED_METHOD, +}; +use contextvm_sdk::core::serializers; +use contextvm_sdk::core::types::{ + JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, +}; +use contextvm_sdk::transport::base::BaseTransport; +use nostr_sdk::prelude::*; + +fn assert_ctxvm_message_kind(event: &Event) { + assert_eq!( + event.kind, + Kind::Custom(CTXVM_MESSAGES_KIND), + "ContextVM MCP messages must use kind {}", + CTXVM_MESSAGES_KIND + ); +} + +fn p_tag_hex(event: &Event) -> Option { + serializers::get_tag_value(&event.tags, tags::PUBKEY) +} + +fn e_tag_hex(event: &Event) -> Option { + serializers::get_tag_value(&event.tags, tags::EVENT_ID) +} + +// ── Initialize request ─────────────────────────────────────────────────────── + +#[test] +fn ctxvm_initialize_request_has_kind_p_tag_and_jsonrpc_initialize() { + let server_keys = Keys::generate(); + let server_pk = server_keys.public_key(); + + let init_req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: INITIALIZE_METHOD.to_string(), + params: Some(serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "capabilities": {}, + "clientInfo": { "name": "conformance-test", "version": "0.0.0" } + })), + }); + + let recipient_tags = BaseTransport::create_recipient_tags(&server_pk); + let builder = serializers::mcp_to_nostr_event(&init_req, CTXVM_MESSAGES_KIND, recipient_tags) + .expect("initialize request should serialize to event content"); + + let client_keys = Keys::generate(); + let event = builder + .sign_with_keys(&client_keys) + .expect("sign initialize request event"); + + assert_ctxvm_message_kind(&event); + assert_eq!( + p_tag_hex(&event), + Some(server_pk.to_hex()), + "initialize request must target the server via p tag" + ); + + let msg = serializers::nostr_event_to_mcp_message(&event.content) + .expect("event content should be valid JSON-RPC"); + assert!(msg.is_request()); + assert_eq!(msg.method(), Some(INITIALIZE_METHOD)); + + // Parse at the raw JSON level to verify wire format independently of the typed deserializer. + let v: serde_json::Value = + serde_json::from_str(&event.content).expect("content must be JSON object"); + assert_eq!(v["jsonrpc"], "2.0"); + assert_eq!(v["id"], serde_json::json!(1)); +} + +// ── Initialize response ────────────────────────────────────────────────────── + +#[test] +fn ctxvm_initialize_response_has_kind_e_tag_and_result_protocol_version() { + let server_keys = Keys::generate(); + let server_pk = server_keys.public_key(); + let client_keys = Keys::generate(); + let client_pk = client_keys.public_key(); + + // Signed request event provides the Nostr event id referenced by e on the response. + let init_req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("corr-1"), + method: INITIALIZE_METHOD.to_string(), + params: Some(serde_json::json!({})), + }); + let recipient_tags = BaseTransport::create_recipient_tags(&server_pk); + let request_event = serializers::mcp_to_nostr_event(&init_req, CTXVM_MESSAGES_KIND, recipient_tags) + .expect("request event for response correlation should serialize") + .sign_with_keys(&client_keys) + .expect("sign request event for correlation"); + + let init_resp = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("corr-1"), + result: serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "serverInfo": { + "name": "conformance-test-server", + "version": "0.0.0" + }, + "capabilities": {} + }), + }); + + let response_tags = BaseTransport::create_response_tags(&client_pk, &request_event.id); + let response_event = + serializers::mcp_to_nostr_event(&init_resp, CTXVM_MESSAGES_KIND, response_tags) + .expect("initialize response should serialize") + .sign_with_keys(&server_keys) + .expect("sign initialize response event"); + + assert_ctxvm_message_kind(&response_event); + assert_eq!( + p_tag_hex(&response_event), + Some(client_pk.to_hex()), + "initialize response must route back to the client via p tag" + ); + assert_eq!( + e_tag_hex(&response_event), + Some(request_event.id.to_hex()), + "initialize response must correlate to the request Nostr event via e tag" + ); + + let v: serde_json::Value = + serde_json::from_str(&response_event.content).expect("content must be JSON"); + assert_eq!(v["jsonrpc"], "2.0"); + assert_eq!(v["id"], serde_json::json!("corr-1")); + assert!(v["result"]["protocolVersion"].is_string()); + assert!(v["result"]["serverInfo"]["name"].is_string()); +} + +// ── notifications/initialized ────────────────────────────────────────────── + +#[test] +fn ctxvm_notifications_initialized_has_kind_p_tag_and_method() { + let server_keys = Keys::generate(); + let server_pk = server_keys.public_key(); + let client_keys = Keys::generate(); + + let notif = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: NOTIFICATIONS_INITIALIZED_METHOD.to_string(), + params: None, + }); + + let recipient_tags = BaseTransport::create_recipient_tags(&server_pk); + let event = serializers::mcp_to_nostr_event(¬if, CTXVM_MESSAGES_KIND, recipient_tags) + .expect("notification should serialize") + // Client sends this to the server; signer must differ from `p` so the tag is not stripped. + .sign_with_keys(&client_keys) + .expect("sign initialized notification"); + + assert_ctxvm_message_kind(&event); + assert_eq!( + p_tag_hex(&event), + Some(server_pk.to_hex()), + "initialized notification must include server p tag" + ); + + let msg = serializers::nostr_event_to_mcp_message(&event.content).expect("parse content"); + assert!(msg.is_notification()); + assert_eq!(msg.method(), Some(NOTIFICATIONS_INITIALIZED_METHOD)); + + // Parse at the raw JSON level to verify wire format independently of the typed deserializer. + let v: serde_json::Value = + serde_json::from_str(&event.content).expect("content must be JSON object"); + assert_eq!(v["jsonrpc"], "2.0"); + assert!( + v.get("id").map_or(true, serde_json::Value::is_null), + "JSON-RPC notifications must not include an id" + ); +} From 23eaa5889d7aa49caa2cca4500b7d35c967c225e Mon Sep 17 00:00:00 2001 From: Anshuman Singh Date: Wed, 8 Apr 2026 04:48:09 +0530 Subject: [PATCH 028/116] Add integration test CI harness with local nostr relay --- .github/workflows/integration.yml | 44 +++++++ tests/integration.rs | 195 ++++++++++++++++++++++++++++++ 2 files changed, 239 insertions(+) create mode 100644 .github/workflows/integration.yml create mode 100644 tests/integration.rs diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml new file mode 100644 index 0000000..c7e1fc7 --- /dev/null +++ b/.github/workflows/integration.yml @@ -0,0 +1,44 @@ +name: Integration Tests + +on: + push: + branches: ["main"] + pull_request: + branches: ["main"] + +env: + CARGO_TERM_COLOR: always + +jobs: + integration: + name: Integration tests (local relay) + runs-on: ubuntu-latest + + services: + nostr-relay: + image: scsibug/nostr-rs-relay:0.8.9 + ports: + - 8080:8080 + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Install Rust + uses: dtolnay/rust-toolchain@stable + + - name: Cache dependencies + uses: Swatinem/rust-cache@v2 + + - name: Wait for relay + run: | + for i in $(seq 1 30); do + nc -z localhost 8080 2>/dev/null && exit 0 + sleep 1 + done + echo "Relay not ready after 30s" && exit 1 + + - name: Run integration example (all scenarios) + env: + CTXVM_RELAY_URL: ws://localhost:8080 + run: cargo run --example rmcp_integration_test --features rmcp -- all diff --git a/tests/integration.rs b/tests/integration.rs new file mode 100644 index 0000000..7507057 --- /dev/null +++ b/tests/integration.rs @@ -0,0 +1,195 @@ +//! Local RMCP integration test (in-process duplex I/O, no relay required). +//! Relay-dependent scenarios live in `examples/rmcp_integration_test.rs` +//! and run via the `integration.yml` workflow against a local relay container. + +#![cfg(feature = "rmcp")] + +use rmcp::{ + handler::server::router::tool::ToolRouter, handler::server::wrapper::Parameters, model::*, + schemars, tool, tool_handler, tool_router, ClientHandler, RoleServer, ServerHandler, + ServiceExt, service::RequestContext, +}; +use std::sync::Arc; +use tokio::sync::Mutex; + +// Minimal fixture: same tools as examples/rmcp_integration_test.rs + +#[derive(Debug, serde::Deserialize, schemars::JsonSchema)] +struct EchoParams { + message: String, +} + +#[derive(Debug, serde::Deserialize, schemars::JsonSchema)] +struct AddParams { + a: i64, + b: i64, +} + +#[derive(Clone)] +struct DemoServer { + echo_count: Arc>, + tool_router: ToolRouter, +} + +impl DemoServer { + fn new() -> Self { + Self { + echo_count: Arc::new(Mutex::new(0)), + tool_router: Self::tool_router(), + } + } +} + +#[tool_router] +impl DemoServer { + #[tool(description = "Echo a message back")] + async fn echo( + &self, + Parameters(EchoParams { message }): Parameters, + ) -> Result { + let mut n = self.echo_count.lock().await; + *n += 1; + Ok(CallToolResult::success(vec![Content::text(format!( + "Echo #{n}: {message}" + ))])) + } + + #[tool(description = "Add two integers")] + fn add( + &self, + Parameters(AddParams { a, b }): Parameters, + ) -> Result { + Ok(CallToolResult::success(vec![Content::text(format!( + "{a} + {b} = {}", + a + b + ))])) + } + + #[tool(description = "Return total echo calls")] + async fn get_echo_count(&self) -> Result { + let n = self.echo_count.lock().await; + Ok(CallToolResult::success(vec![Content::text(format!( + "Total echo calls: {n}" + ))])) + } +} + +#[tool_handler] +impl ServerHandler for DemoServer { + fn get_info(&self) -> ServerInfo { + ServerInfo { + protocol_version: ProtocolVersion::LATEST, + capabilities: ServerCapabilities::builder() + .enable_tools() + .enable_resources() + .build(), + server_info: Implementation { + name: "integration-test".to_string(), + title: None, + version: "0.1.0".to_string(), + description: None, + icons: None, + website_url: None, + }, + instructions: None, + } + } + + async fn list_resources( + &self, + _req: Option, + _ctx: RequestContext, + ) -> Result { + Ok(ListResourcesResult { + resources: vec![ + RawResource::new("demo://readme", "Demo README".to_string()).no_annotation(), + ], + next_cursor: None, + meta: None, + }) + } + + async fn read_resource( + &self, + req: ReadResourceRequestParams, + _ctx: RequestContext, + ) -> Result { + match req.uri.as_str() { + "demo://readme" => Ok(ReadResourceResult { + contents: vec![ResourceContents::text("Demo content.", req.uri)], + }), + other => Err(ErrorData::resource_not_found( + "not_found", + Some(serde_json::json!({ "uri": other })), + )), + } + } +} + +#[derive(Clone, Default)] +struct DemoClient; +impl ClientHandler for DemoClient {} + +fn first_text(result: &CallToolResult) -> String { + result + .content + .iter() + .find_map(|c| match &c.raw { + RawContent::Text(t) => Some(t.text.clone()), + _ => None, + }) + .unwrap_or_default() +} + +// ── Test ───────────────────────────────────────────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn test_local_rmcp() { + let (server_io, client_io) = tokio::io::duplex(65536); + + let server_handle = tokio::spawn(async move { + DemoServer::new() + .serve(server_io) + .await + .expect("serve") + .waiting() + .await + .expect("server error"); + }); + + let client = DemoClient.serve(client_io).await.expect("client init"); + + let tools = client.list_all_tools().await.expect("list tools"); + assert_eq!(tools.len(), 3); + + let add = client + .call_tool(CallToolRequestParams { + name: "add".into(), + arguments: serde_json::from_value(serde_json::json!({ "a": 7, "b": 5 })).ok(), + meta: None, + task: None, + }) + .await + .expect("call add"); + assert!(first_text(&add).contains("12")); + + let resources = client.list_all_resources().await.expect("list resources"); + assert_eq!(resources.len(), 1); + + match client + .call_tool(CallToolRequestParams { + name: "no_such_tool".into(), + arguments: None, + meta: None, + task: None, + }) + .await + { + Err(_) => {} + Ok(r) if r.is_error.unwrap_or(false) => {} + Ok(_) => panic!("expected unknown tool to fail"), + } + + client.cancel().await.expect("cancel"); + server_handle.abort(); +} From 3cb8f50963d408f5d6ffb53e5984f139d9f793ee Mon Sep 17 00:00:00 2001 From: Anshuman Singh Date: Wed, 8 Apr 2026 05:13:59 +0530 Subject: [PATCH 029/116] Fix CI: drop local relay, run integration example in local mode only --- .github/workflows/integration.yml | 25 ++++++------------------- 1 file changed, 6 insertions(+), 19 deletions(-) diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml index c7e1fc7..b55e77c 100644 --- a/.github/workflows/integration.yml +++ b/.github/workflows/integration.yml @@ -11,15 +11,9 @@ env: jobs: integration: - name: Integration tests (local relay) + name: Integration tests runs-on: ubuntu-latest - services: - nostr-relay: - image: scsibug/nostr-rs-relay:0.8.9 - ports: - - 8080:8080 - steps: - name: Checkout uses: actions/checkout@v4 @@ -30,15 +24,8 @@ jobs: - name: Cache dependencies uses: Swatinem/rust-cache@v2 - - name: Wait for relay - run: | - for i in $(seq 1 30); do - nc -z localhost 8080 2>/dev/null && exit 0 - sleep 1 - done - echo "Relay not ready after 30s" && exit 1 - - - name: Run integration example (all scenarios) - env: - CTXVM_RELAY_URL: ws://localhost:8080 - run: cargo run --example rmcp_integration_test --features rmcp -- all + - name: Run unit and local integration tests + run: cargo test --all-features + + - name: Run integration example (local RMCP) + run: cargo run --example rmcp_integration_test --features rmcp -- local From 02c0bdf71a4e029c04c8bd2f6f466fef94063dd8 Mon Sep 17 00:00:00 2001 From: Anshuman Singh Date: Wed, 8 Apr 2026 10:47:37 +0530 Subject: [PATCH 030/116] Add stateless conformance tests --- tests/conformance_stateless_mode.rs | 179 ++++++++++++++++++++++++++++ 1 file changed, 179 insertions(+) create mode 100644 tests/conformance_stateless_mode.rs diff --git a/tests/conformance_stateless_mode.rs b/tests/conformance_stateless_mode.rs new file mode 100644 index 0000000..bbddde5 --- /dev/null +++ b/tests/conformance_stateless_mode.rs @@ -0,0 +1,179 @@ +//! Conformance tests for stateless mode behavior in client transport. +//! +//! These mirror the TypeScript SDK StatelessModeHandler expectations at the +//! transport boundary: initialize requests are handled locally with an emulated +//! response, while unrelated methods are not handled statelessly. + +use std::time::Duration; + +use contextvm_sdk::core::constants::{mcp_protocol_version, INITIALIZE_METHOD}; +use contextvm_sdk::core::types::{ + EncryptionMode, JsonRpcMessage, JsonRpcRequest, +}; +use contextvm_sdk::transport::client::{ + NostrClientTransport, NostrClientTransportConfig, +}; +use contextvm_sdk::signer; +use tokio::time::timeout; + +async fn make_stateless_transport() -> ( + NostrClientTransport, + tokio::sync::mpsc::UnboundedReceiver, +) { + let server_keys = signer::generate(); + let client_keys = signer::generate(); + + let config = NostrClientTransportConfig { + relay_urls: Vec::new(), + server_pubkey: server_keys.public_key().to_hex(), + encryption_mode: EncryptionMode::Optional, + is_stateless: true, + timeout: Duration::from_secs(1), + }; + + let mut transport = NostrClientTransport::new(client_keys, config) + .await + .expect("transport should be constructed"); + let rx = transport + .take_message_receiver() + .expect("message receiver should be available once"); + + (transport, rx) +} + +#[tokio::test] +async fn create_emulated_response_returns_correct_request_id() { + let (transport, mut rx) = make_stateless_transport().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("test-id"), + method: INITIALIZE_METHOD.to_string(), + params: Some(serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "capabilities": {}, + "clientInfo": { "name": "conformance-test", "version": "0.0.0" } + })), + }); + + transport + .send(&request) + .await + .expect("initialize should be emulated in stateless mode"); + + let msg = timeout(Duration::from_millis(200), rx.recv()) + .await + .expect("should receive emulated response promptly") + .expect("channel should contain response"); + + match msg { + JsonRpcMessage::Response(resp) => { + assert_eq!(resp.id, serde_json::json!("test-id")); + assert_eq!(resp.jsonrpc, "2.0"); + assert_eq!( + resp.result + .get("protocolVersion") + .and_then(serde_json::Value::as_str), + Some(mcp_protocol_version()) + ); + assert_eq!( + resp.result + .get("serverInfo") + .and_then(|v| v.get("name")) + .and_then(serde_json::Value::as_str), + Some("Emulated-Stateless-Server") + ); + assert_eq!( + resp.result + .get("serverInfo") + .and_then(|v| v.get("version")) + .and_then(serde_json::Value::as_str), + Some("1.0.0") + ); + assert_eq!( + resp.result + .get("capabilities") + .and_then(|v| v.get("tools")) + .and_then(|v| v.get("listChanged")) + .and_then(serde_json::Value::as_bool), + Some(true) + ); + assert_eq!( + resp.result + .get("capabilities") + .and_then(|v| v.get("prompts")) + .and_then(|v| v.get("listChanged")) + .and_then(serde_json::Value::as_bool), + Some(true) + ); + assert_eq!( + resp.result + .get("capabilities") + .and_then(|v| v.get("resources")) + .and_then(|v| v.get("subscribe")) + .and_then(serde_json::Value::as_bool), + Some(true) + ); + assert_eq!( + resp.result + .get("capabilities") + .and_then(|v| v.get("resources")) + .and_then(|v| v.get("listChanged")) + .and_then(serde_json::Value::as_bool), + Some(true) + ); + } + other => panic!("expected Response, got {other:?}"), + } + + let duplicate = timeout(Duration::from_millis(100), rx.recv()).await; + assert!( + duplicate.is_err(), + "initialize request should emit exactly one emulated response" + ); +} + +#[tokio::test] +async fn should_handle_statelessly_returns_true_for_initialize() { + let (transport, mut rx) = make_stateless_transport().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: INITIALIZE_METHOD.to_string(), + params: None, + }); + + transport + .send(&request) + .await + .expect("initialize should be handled statelessly"); + + let msg = timeout(Duration::from_millis(200), rx.recv()) + .await + .expect("initialize should produce local emulated response") + .expect("response should be delivered"); + + assert_eq!(msg.id(), Some(&serde_json::json!(1))); +} + +#[tokio::test] +async fn should_handle_statelessly_returns_false_for_other_methods() { + let (transport, mut rx) = make_stateless_transport().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(2), + method: "tools/list".to_string(), + params: None, + }); + + let _send_result = transport.send(&request).await; + + let recv_result = timeout(Duration::from_millis(200), rx.recv()).await; + assert!( + recv_result.is_err(), + "non-initialize request should not create a local emulated response" + ); + +} From 963467e47653a1c3d8674af4f0fbc64f88c90d46 Mon Sep 17 00:00:00 2001 From: Anshuman Singh Date: Wed, 8 Apr 2026 11:05:48 +0530 Subject: [PATCH 031/116] Polish stateless test wording --- tests/conformance_stateless_mode.rs | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/tests/conformance_stateless_mode.rs b/tests/conformance_stateless_mode.rs index bbddde5..5c7637a 100644 --- a/tests/conformance_stateless_mode.rs +++ b/tests/conformance_stateless_mode.rs @@ -1,8 +1,4 @@ -//! Conformance tests for stateless mode behavior in client transport. -//! -//! These mirror the TypeScript SDK StatelessModeHandler expectations at the -//! transport boundary: initialize requests are handled locally with an emulated -//! response, while unrelated methods are not handled statelessly. +//! Stateless-mode conformance tests for the client transport. use std::time::Duration; From 1bc6b0f0344a91f806281863b68dbfce616b429e Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 9 Apr 2026 00:37:03 +0530 Subject: [PATCH 032/116] style: apply cargo fmt formatting --- .github/workflows/rust.yml | 9 + src/encryption/mod.rs | 9 +- src/transport/client.rs | 8 +- tests/conformance_stateless_mode.rs | 345 ++++++++++++------------ tests/conformance_wire_format.rs | 12 +- tests/integration.rs | 390 ++++++++++++++-------------- 6 files changed, 387 insertions(+), 386 deletions(-) diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml index cc4327a..43b2061 100644 --- a/.github/workflows/rust.yml +++ b/.github/workflows/rust.yml @@ -29,5 +29,14 @@ jobs: - name: Test run: cargo test --all --all-features + - name: Format check + run: cargo fmt --all -- --check + + - name: Clippy + run: cargo clippy --all --all-features -- -D warnings + + - name: Doc check + run: cargo doc --no-deps --all-features + - name: Build run: cargo build --verbose \ No newline at end of file diff --git a/src/encryption/mod.rs b/src/encryption/mod.rs index a7a6d39..20a5362 100644 --- a/src/encryption/mod.rs +++ b/src/encryption/mod.rs @@ -279,15 +279,12 @@ mod tests { .unwrap(); // Step 2: tamper the pubkey (keep original, now-invalid, signature) - let mut forged_json: serde_json::Value = - serde_json::to_value(&inner_event).unwrap(); - forged_json["pubkey"] = - serde_json::Value::String(impersonated.public_key().to_hex()); + let mut forged_json: serde_json::Value = serde_json::to_value(&inner_event).unwrap(); + forged_json["pubkey"] = serde_json::Value::String(impersonated.public_key().to_hex()); let forged_str = serde_json::to_string(&forged_json).unwrap(); // Step 3: gift-wrap the forged payload - let (gift_wrap, _) = - create_simple_gift_wrap(&forged_str, &recipient.public_key()).await; + let (gift_wrap, _) = create_simple_gift_wrap(&forged_str, &recipient.public_key()).await; // Decrypt + parse both succeed — the forgery is syntactically valid let decrypted = decrypt_gift_wrap_single_layer(&recipient, &gift_wrap) diff --git a/src/transport/client.rs b/src/transport/client.rs index db30252..640f207 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -293,7 +293,9 @@ impl NostrClientTransport { match serde_json::from_str::(&decrypted_json) { Ok(inner) => { if let Err(e) = inner.verify() { - tracing::warn!("Inner event signature verification failed: {e}"); + tracing::warn!( + "Inner event signature verification failed: {e}" + ); continue; } let e_tag = serializers::get_tag_value(&inner.tags, "e"); @@ -348,9 +350,7 @@ impl NostrClientTransport { } // Parse MCP message - if let Some(mcp_msg) = - validation::validate_and_parse(&actual_event_content) - { + if let Some(mcp_msg) = validation::validate_and_parse(&actual_event_content) { // Clean up pending request if let Some(ref correlated_id) = e_tag { pending.write().await.remove(correlated_id.as_str()); diff --git a/tests/conformance_stateless_mode.rs b/tests/conformance_stateless_mode.rs index 5c7637a..015e020 100644 --- a/tests/conformance_stateless_mode.rs +++ b/tests/conformance_stateless_mode.rs @@ -1,175 +1,170 @@ -//! Stateless-mode conformance tests for the client transport. - -use std::time::Duration; - -use contextvm_sdk::core::constants::{mcp_protocol_version, INITIALIZE_METHOD}; -use contextvm_sdk::core::types::{ - EncryptionMode, JsonRpcMessage, JsonRpcRequest, -}; -use contextvm_sdk::transport::client::{ - NostrClientTransport, NostrClientTransportConfig, -}; -use contextvm_sdk::signer; -use tokio::time::timeout; - -async fn make_stateless_transport() -> ( - NostrClientTransport, - tokio::sync::mpsc::UnboundedReceiver, -) { - let server_keys = signer::generate(); - let client_keys = signer::generate(); - - let config = NostrClientTransportConfig { - relay_urls: Vec::new(), - server_pubkey: server_keys.public_key().to_hex(), - encryption_mode: EncryptionMode::Optional, - is_stateless: true, - timeout: Duration::from_secs(1), - }; - - let mut transport = NostrClientTransport::new(client_keys, config) - .await - .expect("transport should be constructed"); - let rx = transport - .take_message_receiver() - .expect("message receiver should be available once"); - - (transport, rx) -} - -#[tokio::test] -async fn create_emulated_response_returns_correct_request_id() { - let (transport, mut rx) = make_stateless_transport().await; - - let request = JsonRpcMessage::Request(JsonRpcRequest { - jsonrpc: "2.0".to_string(), - id: serde_json::json!("test-id"), - method: INITIALIZE_METHOD.to_string(), - params: Some(serde_json::json!({ - "protocolVersion": mcp_protocol_version(), - "capabilities": {}, - "clientInfo": { "name": "conformance-test", "version": "0.0.0" } - })), - }); - - transport - .send(&request) - .await - .expect("initialize should be emulated in stateless mode"); - - let msg = timeout(Duration::from_millis(200), rx.recv()) - .await - .expect("should receive emulated response promptly") - .expect("channel should contain response"); - - match msg { - JsonRpcMessage::Response(resp) => { - assert_eq!(resp.id, serde_json::json!("test-id")); - assert_eq!(resp.jsonrpc, "2.0"); - assert_eq!( - resp.result - .get("protocolVersion") - .and_then(serde_json::Value::as_str), - Some(mcp_protocol_version()) - ); - assert_eq!( - resp.result - .get("serverInfo") - .and_then(|v| v.get("name")) - .and_then(serde_json::Value::as_str), - Some("Emulated-Stateless-Server") - ); - assert_eq!( - resp.result - .get("serverInfo") - .and_then(|v| v.get("version")) - .and_then(serde_json::Value::as_str), - Some("1.0.0") - ); - assert_eq!( - resp.result - .get("capabilities") - .and_then(|v| v.get("tools")) - .and_then(|v| v.get("listChanged")) - .and_then(serde_json::Value::as_bool), - Some(true) - ); - assert_eq!( - resp.result - .get("capabilities") - .and_then(|v| v.get("prompts")) - .and_then(|v| v.get("listChanged")) - .and_then(serde_json::Value::as_bool), - Some(true) - ); - assert_eq!( - resp.result - .get("capabilities") - .and_then(|v| v.get("resources")) - .and_then(|v| v.get("subscribe")) - .and_then(serde_json::Value::as_bool), - Some(true) - ); - assert_eq!( - resp.result - .get("capabilities") - .and_then(|v| v.get("resources")) - .and_then(|v| v.get("listChanged")) - .and_then(serde_json::Value::as_bool), - Some(true) - ); - } - other => panic!("expected Response, got {other:?}"), - } - - let duplicate = timeout(Duration::from_millis(100), rx.recv()).await; - assert!( - duplicate.is_err(), - "initialize request should emit exactly one emulated response" - ); -} - -#[tokio::test] -async fn should_handle_statelessly_returns_true_for_initialize() { - let (transport, mut rx) = make_stateless_transport().await; - - let request = JsonRpcMessage::Request(JsonRpcRequest { - jsonrpc: "2.0".to_string(), - id: serde_json::json!(1), - method: INITIALIZE_METHOD.to_string(), - params: None, - }); - - transport - .send(&request) - .await - .expect("initialize should be handled statelessly"); - - let msg = timeout(Duration::from_millis(200), rx.recv()) - .await - .expect("initialize should produce local emulated response") - .expect("response should be delivered"); - - assert_eq!(msg.id(), Some(&serde_json::json!(1))); -} - -#[tokio::test] -async fn should_handle_statelessly_returns_false_for_other_methods() { - let (transport, mut rx) = make_stateless_transport().await; - - let request = JsonRpcMessage::Request(JsonRpcRequest { - jsonrpc: "2.0".to_string(), - id: serde_json::json!(2), - method: "tools/list".to_string(), - params: None, - }); - - let _send_result = transport.send(&request).await; - - let recv_result = timeout(Duration::from_millis(200), rx.recv()).await; - assert!( - recv_result.is_err(), - "non-initialize request should not create a local emulated response" - ); - -} +//! Stateless-mode conformance tests for the client transport. + +use std::time::Duration; + +use contextvm_sdk::core::constants::{mcp_protocol_version, INITIALIZE_METHOD}; +use contextvm_sdk::core::types::{EncryptionMode, JsonRpcMessage, JsonRpcRequest}; +use contextvm_sdk::signer; +use contextvm_sdk::transport::client::{NostrClientTransport, NostrClientTransportConfig}; +use tokio::time::timeout; + +async fn make_stateless_transport() -> ( + NostrClientTransport, + tokio::sync::mpsc::UnboundedReceiver, +) { + let server_keys = signer::generate(); + let client_keys = signer::generate(); + + let config = NostrClientTransportConfig { + relay_urls: Vec::new(), + server_pubkey: server_keys.public_key().to_hex(), + encryption_mode: EncryptionMode::Optional, + is_stateless: true, + timeout: Duration::from_secs(1), + }; + + let mut transport = NostrClientTransport::new(client_keys, config) + .await + .expect("transport should be constructed"); + let rx = transport + .take_message_receiver() + .expect("message receiver should be available once"); + + (transport, rx) +} + +#[tokio::test] +async fn create_emulated_response_returns_correct_request_id() { + let (transport, mut rx) = make_stateless_transport().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("test-id"), + method: INITIALIZE_METHOD.to_string(), + params: Some(serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "capabilities": {}, + "clientInfo": { "name": "conformance-test", "version": "0.0.0" } + })), + }); + + transport + .send(&request) + .await + .expect("initialize should be emulated in stateless mode"); + + let msg = timeout(Duration::from_millis(200), rx.recv()) + .await + .expect("should receive emulated response promptly") + .expect("channel should contain response"); + + match msg { + JsonRpcMessage::Response(resp) => { + assert_eq!(resp.id, serde_json::json!("test-id")); + assert_eq!(resp.jsonrpc, "2.0"); + assert_eq!( + resp.result + .get("protocolVersion") + .and_then(serde_json::Value::as_str), + Some(mcp_protocol_version()) + ); + assert_eq!( + resp.result + .get("serverInfo") + .and_then(|v| v.get("name")) + .and_then(serde_json::Value::as_str), + Some("Emulated-Stateless-Server") + ); + assert_eq!( + resp.result + .get("serverInfo") + .and_then(|v| v.get("version")) + .and_then(serde_json::Value::as_str), + Some("1.0.0") + ); + assert_eq!( + resp.result + .get("capabilities") + .and_then(|v| v.get("tools")) + .and_then(|v| v.get("listChanged")) + .and_then(serde_json::Value::as_bool), + Some(true) + ); + assert_eq!( + resp.result + .get("capabilities") + .and_then(|v| v.get("prompts")) + .and_then(|v| v.get("listChanged")) + .and_then(serde_json::Value::as_bool), + Some(true) + ); + assert_eq!( + resp.result + .get("capabilities") + .and_then(|v| v.get("resources")) + .and_then(|v| v.get("subscribe")) + .and_then(serde_json::Value::as_bool), + Some(true) + ); + assert_eq!( + resp.result + .get("capabilities") + .and_then(|v| v.get("resources")) + .and_then(|v| v.get("listChanged")) + .and_then(serde_json::Value::as_bool), + Some(true) + ); + } + other => panic!("expected Response, got {other:?}"), + } + + let duplicate = timeout(Duration::from_millis(100), rx.recv()).await; + assert!( + duplicate.is_err(), + "initialize request should emit exactly one emulated response" + ); +} + +#[tokio::test] +async fn should_handle_statelessly_returns_true_for_initialize() { + let (transport, mut rx) = make_stateless_transport().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: INITIALIZE_METHOD.to_string(), + params: None, + }); + + transport + .send(&request) + .await + .expect("initialize should be handled statelessly"); + + let msg = timeout(Duration::from_millis(200), rx.recv()) + .await + .expect("initialize should produce local emulated response") + .expect("response should be delivered"); + + assert_eq!(msg.id(), Some(&serde_json::json!(1))); +} + +#[tokio::test] +async fn should_handle_statelessly_returns_false_for_other_methods() { + let (transport, mut rx) = make_stateless_transport().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(2), + method: "tools/list".to_string(), + params: None, + }); + + let _send_result = transport.send(&request).await; + + let recv_result = timeout(Duration::from_millis(200), rx.recv()).await; + assert!( + recv_result.is_err(), + "non-initialize request should not create a local emulated response" + ); +} diff --git a/tests/conformance_wire_format.rs b/tests/conformance_wire_format.rs index ee039fc..828ac38 100644 --- a/tests/conformance_wire_format.rs +++ b/tests/conformance_wire_format.rs @@ -95,10 +95,11 @@ fn ctxvm_initialize_response_has_kind_e_tag_and_result_protocol_version() { params: Some(serde_json::json!({})), }); let recipient_tags = BaseTransport::create_recipient_tags(&server_pk); - let request_event = serializers::mcp_to_nostr_event(&init_req, CTXVM_MESSAGES_KIND, recipient_tags) - .expect("request event for response correlation should serialize") - .sign_with_keys(&client_keys) - .expect("sign request event for correlation"); + let request_event = + serializers::mcp_to_nostr_event(&init_req, CTXVM_MESSAGES_KIND, recipient_tags) + .expect("request event for response correlation should serialize") + .sign_with_keys(&client_keys) + .expect("sign request event for correlation"); let init_resp = JsonRpcMessage::Response(JsonRpcResponse { jsonrpc: "2.0".to_string(), @@ -449,8 +450,7 @@ fn ctxvm_server_announcement_has_kind_and_required_tags() { assert!( event.tags.iter().any(|t| { let parts = t.clone().to_vec(); - parts.len() == 1 - && parts.first().map(|s| s.as_str()) == Some(tags::SUPPORT_ENCRYPTION) + parts.len() == 1 && parts.first().map(|s| s.as_str()) == Some(tags::SUPPORT_ENCRYPTION) }), "support_encryption must be present as a single-element tag" ); diff --git a/tests/integration.rs b/tests/integration.rs index 7507057..339f2a0 100644 --- a/tests/integration.rs +++ b/tests/integration.rs @@ -1,195 +1,195 @@ -//! Local RMCP integration test (in-process duplex I/O, no relay required). -//! Relay-dependent scenarios live in `examples/rmcp_integration_test.rs` -//! and run via the `integration.yml` workflow against a local relay container. - -#![cfg(feature = "rmcp")] - -use rmcp::{ - handler::server::router::tool::ToolRouter, handler::server::wrapper::Parameters, model::*, - schemars, tool, tool_handler, tool_router, ClientHandler, RoleServer, ServerHandler, - ServiceExt, service::RequestContext, -}; -use std::sync::Arc; -use tokio::sync::Mutex; - -// Minimal fixture: same tools as examples/rmcp_integration_test.rs - -#[derive(Debug, serde::Deserialize, schemars::JsonSchema)] -struct EchoParams { - message: String, -} - -#[derive(Debug, serde::Deserialize, schemars::JsonSchema)] -struct AddParams { - a: i64, - b: i64, -} - -#[derive(Clone)] -struct DemoServer { - echo_count: Arc>, - tool_router: ToolRouter, -} - -impl DemoServer { - fn new() -> Self { - Self { - echo_count: Arc::new(Mutex::new(0)), - tool_router: Self::tool_router(), - } - } -} - -#[tool_router] -impl DemoServer { - #[tool(description = "Echo a message back")] - async fn echo( - &self, - Parameters(EchoParams { message }): Parameters, - ) -> Result { - let mut n = self.echo_count.lock().await; - *n += 1; - Ok(CallToolResult::success(vec![Content::text(format!( - "Echo #{n}: {message}" - ))])) - } - - #[tool(description = "Add two integers")] - fn add( - &self, - Parameters(AddParams { a, b }): Parameters, - ) -> Result { - Ok(CallToolResult::success(vec![Content::text(format!( - "{a} + {b} = {}", - a + b - ))])) - } - - #[tool(description = "Return total echo calls")] - async fn get_echo_count(&self) -> Result { - let n = self.echo_count.lock().await; - Ok(CallToolResult::success(vec![Content::text(format!( - "Total echo calls: {n}" - ))])) - } -} - -#[tool_handler] -impl ServerHandler for DemoServer { - fn get_info(&self) -> ServerInfo { - ServerInfo { - protocol_version: ProtocolVersion::LATEST, - capabilities: ServerCapabilities::builder() - .enable_tools() - .enable_resources() - .build(), - server_info: Implementation { - name: "integration-test".to_string(), - title: None, - version: "0.1.0".to_string(), - description: None, - icons: None, - website_url: None, - }, - instructions: None, - } - } - - async fn list_resources( - &self, - _req: Option, - _ctx: RequestContext, - ) -> Result { - Ok(ListResourcesResult { - resources: vec![ - RawResource::new("demo://readme", "Demo README".to_string()).no_annotation(), - ], - next_cursor: None, - meta: None, - }) - } - - async fn read_resource( - &self, - req: ReadResourceRequestParams, - _ctx: RequestContext, - ) -> Result { - match req.uri.as_str() { - "demo://readme" => Ok(ReadResourceResult { - contents: vec![ResourceContents::text("Demo content.", req.uri)], - }), - other => Err(ErrorData::resource_not_found( - "not_found", - Some(serde_json::json!({ "uri": other })), - )), - } - } -} - -#[derive(Clone, Default)] -struct DemoClient; -impl ClientHandler for DemoClient {} - -fn first_text(result: &CallToolResult) -> String { - result - .content - .iter() - .find_map(|c| match &c.raw { - RawContent::Text(t) => Some(t.text.clone()), - _ => None, - }) - .unwrap_or_default() -} - -// ── Test ───────────────────────────────────────────────────────────────── - -#[tokio::test(flavor = "multi_thread", worker_threads = 2)] -async fn test_local_rmcp() { - let (server_io, client_io) = tokio::io::duplex(65536); - - let server_handle = tokio::spawn(async move { - DemoServer::new() - .serve(server_io) - .await - .expect("serve") - .waiting() - .await - .expect("server error"); - }); - - let client = DemoClient.serve(client_io).await.expect("client init"); - - let tools = client.list_all_tools().await.expect("list tools"); - assert_eq!(tools.len(), 3); - - let add = client - .call_tool(CallToolRequestParams { - name: "add".into(), - arguments: serde_json::from_value(serde_json::json!({ "a": 7, "b": 5 })).ok(), - meta: None, - task: None, - }) - .await - .expect("call add"); - assert!(first_text(&add).contains("12")); - - let resources = client.list_all_resources().await.expect("list resources"); - assert_eq!(resources.len(), 1); - - match client - .call_tool(CallToolRequestParams { - name: "no_such_tool".into(), - arguments: None, - meta: None, - task: None, - }) - .await - { - Err(_) => {} - Ok(r) if r.is_error.unwrap_or(false) => {} - Ok(_) => panic!("expected unknown tool to fail"), - } - - client.cancel().await.expect("cancel"); - server_handle.abort(); -} +//! Local RMCP integration test (in-process duplex I/O, no relay required). +//! Relay-dependent scenarios live in `examples/rmcp_integration_test.rs` +//! and run via the `integration.yml` workflow against a local relay container. + +#![cfg(feature = "rmcp")] + +use rmcp::{ + handler::server::router::tool::ToolRouter, handler::server::wrapper::Parameters, model::*, + schemars, service::RequestContext, tool, tool_handler, tool_router, ClientHandler, RoleServer, + ServerHandler, ServiceExt, +}; +use std::sync::Arc; +use tokio::sync::Mutex; + +// Minimal fixture: same tools as examples/rmcp_integration_test.rs + +#[derive(Debug, serde::Deserialize, schemars::JsonSchema)] +struct EchoParams { + message: String, +} + +#[derive(Debug, serde::Deserialize, schemars::JsonSchema)] +struct AddParams { + a: i64, + b: i64, +} + +#[derive(Clone)] +struct DemoServer { + echo_count: Arc>, + tool_router: ToolRouter, +} + +impl DemoServer { + fn new() -> Self { + Self { + echo_count: Arc::new(Mutex::new(0)), + tool_router: Self::tool_router(), + } + } +} + +#[tool_router] +impl DemoServer { + #[tool(description = "Echo a message back")] + async fn echo( + &self, + Parameters(EchoParams { message }): Parameters, + ) -> Result { + let mut n = self.echo_count.lock().await; + *n += 1; + Ok(CallToolResult::success(vec![Content::text(format!( + "Echo #{n}: {message}" + ))])) + } + + #[tool(description = "Add two integers")] + fn add( + &self, + Parameters(AddParams { a, b }): Parameters, + ) -> Result { + Ok(CallToolResult::success(vec![Content::text(format!( + "{a} + {b} = {}", + a + b + ))])) + } + + #[tool(description = "Return total echo calls")] + async fn get_echo_count(&self) -> Result { + let n = self.echo_count.lock().await; + Ok(CallToolResult::success(vec![Content::text(format!( + "Total echo calls: {n}" + ))])) + } +} + +#[tool_handler] +impl ServerHandler for DemoServer { + fn get_info(&self) -> ServerInfo { + ServerInfo { + protocol_version: ProtocolVersion::LATEST, + capabilities: ServerCapabilities::builder() + .enable_tools() + .enable_resources() + .build(), + server_info: Implementation { + name: "integration-test".to_string(), + title: None, + version: "0.1.0".to_string(), + description: None, + icons: None, + website_url: None, + }, + instructions: None, + } + } + + async fn list_resources( + &self, + _req: Option, + _ctx: RequestContext, + ) -> Result { + Ok(ListResourcesResult { + resources: vec![ + RawResource::new("demo://readme", "Demo README".to_string()).no_annotation() + ], + next_cursor: None, + meta: None, + }) + } + + async fn read_resource( + &self, + req: ReadResourceRequestParams, + _ctx: RequestContext, + ) -> Result { + match req.uri.as_str() { + "demo://readme" => Ok(ReadResourceResult { + contents: vec![ResourceContents::text("Demo content.", req.uri)], + }), + other => Err(ErrorData::resource_not_found( + "not_found", + Some(serde_json::json!({ "uri": other })), + )), + } + } +} + +#[derive(Clone, Default)] +struct DemoClient; +impl ClientHandler for DemoClient {} + +fn first_text(result: &CallToolResult) -> String { + result + .content + .iter() + .find_map(|c| match &c.raw { + RawContent::Text(t) => Some(t.text.clone()), + _ => None, + }) + .unwrap_or_default() +} + +// ── Test ───────────────────────────────────────────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn test_local_rmcp() { + let (server_io, client_io) = tokio::io::duplex(65536); + + let server_handle = tokio::spawn(async move { + DemoServer::new() + .serve(server_io) + .await + .expect("serve") + .waiting() + .await + .expect("server error"); + }); + + let client = DemoClient.serve(client_io).await.expect("client init"); + + let tools = client.list_all_tools().await.expect("list tools"); + assert_eq!(tools.len(), 3); + + let add = client + .call_tool(CallToolRequestParams { + name: "add".into(), + arguments: serde_json::from_value(serde_json::json!({ "a": 7, "b": 5 })).ok(), + meta: None, + task: None, + }) + .await + .expect("call add"); + assert!(first_text(&add).contains("12")); + + let resources = client.list_all_resources().await.expect("list resources"); + assert_eq!(resources.len(), 1); + + match client + .call_tool(CallToolRequestParams { + name: "no_such_tool".into(), + arguments: None, + meta: None, + task: None, + }) + .await + { + Err(_) => {} + Ok(r) if r.is_error.unwrap_or(false) => {} + Ok(_) => panic!("expected unknown tool to fail"), + } + + client.cancel().await.expect("cancel"); + server_handle.abort(); +} From be45cf6026d13d7d2f25d72c0b46ea30b9fcb6b8 Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 9 Apr 2026 00:46:52 +0530 Subject: [PATCH 033/116] resolve ci --- tests/conformance_stateless_mode.rs | 1 + 1 file changed, 1 insertion(+) diff --git a/tests/conformance_stateless_mode.rs b/tests/conformance_stateless_mode.rs index 015e020..54b633b 100644 --- a/tests/conformance_stateless_mode.rs +++ b/tests/conformance_stateless_mode.rs @@ -21,6 +21,7 @@ async fn make_stateless_transport() -> ( encryption_mode: EncryptionMode::Optional, is_stateless: true, timeout: Duration::from_secs(1), + log_file_path: None, }; let mut transport = NostrClientTransport::new(client_keys, config) From bc80b8aaebc32210ee5534801d9a35c18ac04e5b Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 9 Apr 2026 01:29:08 +0530 Subject: [PATCH 034/116] test: add conformance tests for signer behavior --- tests/conformance_signer.rs | 75 ++++++ tests/conformance_stateless_mode.rs | 351 ++++++++++++++-------------- 2 files changed, 251 insertions(+), 175 deletions(-) create mode 100644 tests/conformance_signer.rs diff --git a/tests/conformance_signer.rs b/tests/conformance_signer.rs new file mode 100644 index 0000000..5b7c661 --- /dev/null +++ b/tests/conformance_signer.rs @@ -0,0 +1,75 @@ +//! Conformance tests for signer behavior (hex `from_sk`, `generate`, NIP-44, signing). +//! +//! Same layout as `conformance_wire_format.rs`; scenarios follow the TS SDK +//! `private-key-signer.test.ts` alongside `src/signer/mod.rs` / `src/encryption/mod.rs`. + +use contextvm_sdk::encryption::{decrypt_nip44, encrypt_nip44}; +use contextvm_sdk::signer::{self, Keys}; +use nostr_sdk::prelude::*; + +/// Secret `1`, x-only pubkey of secp256k1 `G`. +const FIXTURE_SK_HEX: &str = "0000000000000000000000000000000000000000000000000000000000000001"; +const FIXTURE_PK_HEX: &str = "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798"; + +fn fixture_keys() -> Keys { + signer::from_sk(FIXTURE_SK_HEX).expect("fixture SK hex parses") +} + +// ── Key derivation ─────────────────────────────────────────────────────────── + +#[test] +fn signer_generates_keypair_from_secret_key() { + let keys = fixture_keys(); + assert_eq!(keys.public_key().to_hex(), FIXTURE_PK_HEX); +} + +// ── Random generation ──────────────────────────────────────────────────────── + +#[test] +fn signer_generates_random_keypair_when_no_secret_provided() { + let keys = signer::generate(); + assert_eq!(keys.public_key().to_hex().len(), 64); +} + +// ── NIP-44 ─────────────────────────────────────────────────────────────────── + +#[tokio::test] +async fn signer_nip44_encrypt_decrypt_roundtrip() { + let sender_keys = Keys::generate(); + let recipient_keys = Keys::generate(); + let plaintext = "Hello Encryption!"; + + let ciphertext = encrypt_nip44(&sender_keys, &recipient_keys.public_key(), plaintext) + .await + .expect("nip44 encrypt"); + + assert_ne!(ciphertext, plaintext); + + let decrypted = decrypt_nip44(&recipient_keys, &sender_keys.public_key(), &ciphertext) + .await + .expect("nip44 decrypt"); + + assert_eq!(decrypted, plaintext); +} + +// ── Public key ─────────────────────────────────────────────────────────────── + +#[test] +fn signer_get_public_key_returns_correct_key() { + let keys = fixture_keys(); + let expected_pk = PublicKey::parse(FIXTURE_PK_HEX).expect("fixture PK hex parses"); + assert_eq!(keys.public_key(), expected_pk); +} + +// ── Signed events ──────────────────────────────────────────────────────────── + +#[test] +fn signer_signed_event_has_valid_signature() { + let keys = fixture_keys(); + let event = EventBuilder::new(Kind::TextNote, "Hello Nostr!") + .sign_with_keys(&keys) + .expect("sign text note"); + + assert_eq!(event.pubkey, keys.public_key()); + event.verify().expect("verify signed event"); +} diff --git a/tests/conformance_stateless_mode.rs b/tests/conformance_stateless_mode.rs index 5c7637a..c8cc437 100644 --- a/tests/conformance_stateless_mode.rs +++ b/tests/conformance_stateless_mode.rs @@ -1,175 +1,176 @@ -//! Stateless-mode conformance tests for the client transport. - -use std::time::Duration; - -use contextvm_sdk::core::constants::{mcp_protocol_version, INITIALIZE_METHOD}; -use contextvm_sdk::core::types::{ - EncryptionMode, JsonRpcMessage, JsonRpcRequest, -}; -use contextvm_sdk::transport::client::{ - NostrClientTransport, NostrClientTransportConfig, -}; -use contextvm_sdk::signer; -use tokio::time::timeout; - -async fn make_stateless_transport() -> ( - NostrClientTransport, - tokio::sync::mpsc::UnboundedReceiver, -) { - let server_keys = signer::generate(); - let client_keys = signer::generate(); - - let config = NostrClientTransportConfig { - relay_urls: Vec::new(), - server_pubkey: server_keys.public_key().to_hex(), - encryption_mode: EncryptionMode::Optional, - is_stateless: true, - timeout: Duration::from_secs(1), - }; - - let mut transport = NostrClientTransport::new(client_keys, config) - .await - .expect("transport should be constructed"); - let rx = transport - .take_message_receiver() - .expect("message receiver should be available once"); - - (transport, rx) -} - -#[tokio::test] -async fn create_emulated_response_returns_correct_request_id() { - let (transport, mut rx) = make_stateless_transport().await; - - let request = JsonRpcMessage::Request(JsonRpcRequest { - jsonrpc: "2.0".to_string(), - id: serde_json::json!("test-id"), - method: INITIALIZE_METHOD.to_string(), - params: Some(serde_json::json!({ - "protocolVersion": mcp_protocol_version(), - "capabilities": {}, - "clientInfo": { "name": "conformance-test", "version": "0.0.0" } - })), - }); - - transport - .send(&request) - .await - .expect("initialize should be emulated in stateless mode"); - - let msg = timeout(Duration::from_millis(200), rx.recv()) - .await - .expect("should receive emulated response promptly") - .expect("channel should contain response"); - - match msg { - JsonRpcMessage::Response(resp) => { - assert_eq!(resp.id, serde_json::json!("test-id")); - assert_eq!(resp.jsonrpc, "2.0"); - assert_eq!( - resp.result - .get("protocolVersion") - .and_then(serde_json::Value::as_str), - Some(mcp_protocol_version()) - ); - assert_eq!( - resp.result - .get("serverInfo") - .and_then(|v| v.get("name")) - .and_then(serde_json::Value::as_str), - Some("Emulated-Stateless-Server") - ); - assert_eq!( - resp.result - .get("serverInfo") - .and_then(|v| v.get("version")) - .and_then(serde_json::Value::as_str), - Some("1.0.0") - ); - assert_eq!( - resp.result - .get("capabilities") - .and_then(|v| v.get("tools")) - .and_then(|v| v.get("listChanged")) - .and_then(serde_json::Value::as_bool), - Some(true) - ); - assert_eq!( - resp.result - .get("capabilities") - .and_then(|v| v.get("prompts")) - .and_then(|v| v.get("listChanged")) - .and_then(serde_json::Value::as_bool), - Some(true) - ); - assert_eq!( - resp.result - .get("capabilities") - .and_then(|v| v.get("resources")) - .and_then(|v| v.get("subscribe")) - .and_then(serde_json::Value::as_bool), - Some(true) - ); - assert_eq!( - resp.result - .get("capabilities") - .and_then(|v| v.get("resources")) - .and_then(|v| v.get("listChanged")) - .and_then(serde_json::Value::as_bool), - Some(true) - ); - } - other => panic!("expected Response, got {other:?}"), - } - - let duplicate = timeout(Duration::from_millis(100), rx.recv()).await; - assert!( - duplicate.is_err(), - "initialize request should emit exactly one emulated response" - ); -} - -#[tokio::test] -async fn should_handle_statelessly_returns_true_for_initialize() { - let (transport, mut rx) = make_stateless_transport().await; - - let request = JsonRpcMessage::Request(JsonRpcRequest { - jsonrpc: "2.0".to_string(), - id: serde_json::json!(1), - method: INITIALIZE_METHOD.to_string(), - params: None, - }); - - transport - .send(&request) - .await - .expect("initialize should be handled statelessly"); - - let msg = timeout(Duration::from_millis(200), rx.recv()) - .await - .expect("initialize should produce local emulated response") - .expect("response should be delivered"); - - assert_eq!(msg.id(), Some(&serde_json::json!(1))); -} - -#[tokio::test] -async fn should_handle_statelessly_returns_false_for_other_methods() { - let (transport, mut rx) = make_stateless_transport().await; - - let request = JsonRpcMessage::Request(JsonRpcRequest { - jsonrpc: "2.0".to_string(), - id: serde_json::json!(2), - method: "tools/list".to_string(), - params: None, - }); - - let _send_result = transport.send(&request).await; - - let recv_result = timeout(Duration::from_millis(200), rx.recv()).await; - assert!( - recv_result.is_err(), - "non-initialize request should not create a local emulated response" - ); - -} +//! Stateless-mode conformance tests for the client transport. + +use std::time::Duration; + +use contextvm_sdk::core::constants::{mcp_protocol_version, INITIALIZE_METHOD}; +use contextvm_sdk::core::types::{ + EncryptionMode, JsonRpcMessage, JsonRpcRequest, +}; +use contextvm_sdk::transport::client::{ + NostrClientTransport, NostrClientTransportConfig, +}; +use contextvm_sdk::signer; +use tokio::time::timeout; + +async fn make_stateless_transport() -> ( + NostrClientTransport, + tokio::sync::mpsc::UnboundedReceiver, +) { + let server_keys = signer::generate(); + let client_keys = signer::generate(); + + let config = NostrClientTransportConfig { + relay_urls: Vec::new(), + server_pubkey: server_keys.public_key().to_hex(), + encryption_mode: EncryptionMode::Optional, + is_stateless: true, + timeout: Duration::from_secs(1), + log_file_path: None, + }; + + let mut transport = NostrClientTransport::new(client_keys, config) + .await + .expect("transport should be constructed"); + let rx = transport + .take_message_receiver() + .expect("message receiver should be available once"); + + (transport, rx) +} + +#[tokio::test] +async fn create_emulated_response_returns_correct_request_id() { + let (transport, mut rx) = make_stateless_transport().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("test-id"), + method: INITIALIZE_METHOD.to_string(), + params: Some(serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "capabilities": {}, + "clientInfo": { "name": "conformance-test", "version": "0.0.0" } + })), + }); + + transport + .send(&request) + .await + .expect("initialize should be emulated in stateless mode"); + + let msg = timeout(Duration::from_millis(200), rx.recv()) + .await + .expect("should receive emulated response promptly") + .expect("channel should contain response"); + + match msg { + JsonRpcMessage::Response(resp) => { + assert_eq!(resp.id, serde_json::json!("test-id")); + assert_eq!(resp.jsonrpc, "2.0"); + assert_eq!( + resp.result + .get("protocolVersion") + .and_then(serde_json::Value::as_str), + Some(mcp_protocol_version()) + ); + assert_eq!( + resp.result + .get("serverInfo") + .and_then(|v| v.get("name")) + .and_then(serde_json::Value::as_str), + Some("Emulated-Stateless-Server") + ); + assert_eq!( + resp.result + .get("serverInfo") + .and_then(|v| v.get("version")) + .and_then(serde_json::Value::as_str), + Some("1.0.0") + ); + assert_eq!( + resp.result + .get("capabilities") + .and_then(|v| v.get("tools")) + .and_then(|v| v.get("listChanged")) + .and_then(serde_json::Value::as_bool), + Some(true) + ); + assert_eq!( + resp.result + .get("capabilities") + .and_then(|v| v.get("prompts")) + .and_then(|v| v.get("listChanged")) + .and_then(serde_json::Value::as_bool), + Some(true) + ); + assert_eq!( + resp.result + .get("capabilities") + .and_then(|v| v.get("resources")) + .and_then(|v| v.get("subscribe")) + .and_then(serde_json::Value::as_bool), + Some(true) + ); + assert_eq!( + resp.result + .get("capabilities") + .and_then(|v| v.get("resources")) + .and_then(|v| v.get("listChanged")) + .and_then(serde_json::Value::as_bool), + Some(true) + ); + } + other => panic!("expected Response, got {other:?}"), + } + + let duplicate = timeout(Duration::from_millis(100), rx.recv()).await; + assert!( + duplicate.is_err(), + "initialize request should emit exactly one emulated response" + ); +} + +#[tokio::test] +async fn should_handle_statelessly_returns_true_for_initialize() { + let (transport, mut rx) = make_stateless_transport().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: INITIALIZE_METHOD.to_string(), + params: None, + }); + + transport + .send(&request) + .await + .expect("initialize should be handled statelessly"); + + let msg = timeout(Duration::from_millis(200), rx.recv()) + .await + .expect("initialize should produce local emulated response") + .expect("response should be delivered"); + + assert_eq!(msg.id(), Some(&serde_json::json!(1))); +} + +#[tokio::test] +async fn should_handle_statelessly_returns_false_for_other_methods() { + let (transport, mut rx) = make_stateless_transport().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(2), + method: "tools/list".to_string(), + params: None, + }); + + let _send_result = transport.send(&request).await; + + let recv_result = timeout(Duration::from_millis(200), rx.recv()).await; + assert!( + recv_result.is_err(), + "non-initialize request should not create a local emulated response" + ); + +} From 53bb7ed0ad80211eb0bb8c7e32e732f0e1d98c51 Mon Sep 17 00:00:00 2001 From: Anshuman Singh Date: Thu, 9 Apr 2026 22:32:39 +0530 Subject: [PATCH 035/116] fix: enforce inbound encryption policy in client event loop The client event_loop accepted the encryption_mode parameter but never checked it (_encryption_mode with leading underscore). This let plaintext events through when EncryptionMode::Required was set, and encrypted events through when EncryptionMode::Disabled was set. Changes: - Rename _encryption_mode -> encryption_mode so it is actually used. - Add is_gift_wrap_kind() and violates_encryption_policy() helpers. - Guard the event loop: drop events that violate the configured policy before any decrypt/parse work. - Add unit tests proving Required drops plaintext, Disabled drops encrypted, and Optional accepts both. --- src/transport/client.rs | 113 ++++++++++++++++++++++++++++++++++++++-- 1 file changed, 108 insertions(+), 5 deletions(-) diff --git a/src/transport/client.rs b/src/transport/client.rs index 640f207..b61704d 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -265,17 +265,32 @@ impl NostrClientTransport { pending: Arc>>, server_pubkey: PublicKey, tx: tokio::sync::mpsc::UnboundedSender, - _encryption_mode: EncryptionMode, + encryption_mode: EncryptionMode, ) { let mut notifications = client.notifications(); while let Ok(notification) = notifications.recv().await { if let RelayPoolNotification::Event { event, .. } = notification { + let is_gift_wrap = is_gift_wrap_kind(&event.kind); + + // Enforce mode before decrypt/parse. + if violates_encryption_policy(&event.kind, &encryption_mode) { + if is_gift_wrap { + tracing::warn!( + event_id = %event.id.to_hex(), + "Received encrypted response but encryption is disabled" + ); + } else { + tracing::warn!( + event_id = %event.id.to_hex(), + "Received unencrypted response but encryption is required" + ); + } + continue; + } + // Handle gift-wrapped events - let (actual_event_content, actual_pubkey, e_tag) = if event.kind - == Kind::Custom(GIFT_WRAP_KIND) - || event.kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND) - { + let (actual_event_content, actual_pubkey, e_tag) = if is_gift_wrap { // Single-layer NIP-44 decrypt (matches JS/TS SDK) let signer = match client.signer().await { Ok(s) => s, @@ -362,6 +377,20 @@ impl NostrClientTransport { } } +#[inline] +fn is_gift_wrap_kind(kind: &Kind) -> bool { + *kind == Kind::Custom(GIFT_WRAP_KIND) || *kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND) +} + +/// Returns `true` when the inbound event kind violates the configured encryption +/// policy and must be dropped before any further processing. +#[inline] +fn violates_encryption_policy(kind: &Kind, mode: &EncryptionMode) -> bool { + let is_gift_wrap = is_gift_wrap_kind(kind); + (is_gift_wrap && *mode == EncryptionMode::Disabled) + || (!is_gift_wrap && *mode == EncryptionMode::Required) +} + #[cfg(test)] mod tests { use super::*; @@ -437,4 +466,78 @@ mod tests { }); assert_eq!(init_notif.method(), Some("notifications/initialized")); } + + #[test] + fn test_gift_wrap_kind_detection() { + assert!(is_gift_wrap_kind(&Kind::Custom(GIFT_WRAP_KIND))); + assert!(is_gift_wrap_kind(&Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND))); + assert!(!is_gift_wrap_kind(&Kind::Custom(CTXVM_MESSAGES_KIND))); + } + + #[test] + fn test_required_mode_drops_plaintext() { + let plaintext_kind = Kind::Custom(CTXVM_MESSAGES_KIND); + assert!( + violates_encryption_policy(&plaintext_kind, &EncryptionMode::Required), + "Required mode must reject plaintext (non-gift-wrap) events" + ); + } + + #[test] + fn test_disabled_mode_drops_encrypted() { + assert!( + violates_encryption_policy(&Kind::Custom(GIFT_WRAP_KIND), &EncryptionMode::Disabled), + "Disabled mode must reject gift-wrap events" + ); + assert!( + violates_encryption_policy( + &Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND), + &EncryptionMode::Disabled + ), + "Disabled mode must reject ephemeral gift-wrap events" + ); + } + + #[test] + fn test_optional_mode_accepts_all() { + let plaintext = Kind::Custom(CTXVM_MESSAGES_KIND); + let gift_wrap = Kind::Custom(GIFT_WRAP_KIND); + let ephemeral = Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND); + assert!(!violates_encryption_policy( + &plaintext, + &EncryptionMode::Optional + )); + assert!(!violates_encryption_policy( + &gift_wrap, + &EncryptionMode::Optional + )); + assert!(!violates_encryption_policy( + &ephemeral, + &EncryptionMode::Optional + )); + } + + #[test] + fn test_required_mode_accepts_encrypted() { + assert!( + !violates_encryption_policy(&Kind::Custom(GIFT_WRAP_KIND), &EncryptionMode::Required), + "Required mode must accept gift-wrap events" + ); + assert!( + !violates_encryption_policy( + &Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND), + &EncryptionMode::Required + ), + "Required mode must accept ephemeral gift-wrap events" + ); + } + + #[test] + fn test_disabled_mode_accepts_plaintext() { + let plaintext = Kind::Custom(CTXVM_MESSAGES_KIND); + assert!( + !violates_encryption_policy(&plaintext, &EncryptionMode::Disabled), + "Disabled mode must accept plaintext events" + ); + } } From 392538bc7a06dbb39d9f840f93333515981a4372 Mon Sep 17 00:00:00 2001 From: Anurag <86455065+theAnuragMishra@users.noreply.github.com> Date: Mon, 13 Apr 2026 00:37:00 +0530 Subject: [PATCH 036/116] fix(transport): fix comment saying we should not use a since filter on gift-wrap subscriptions The comment says that we should not use a since filter on gift-wrap subscriptions which is not true. This commit fixes it. Also, this commit fixes the comment to include kind 21059 filter which is used right now but not mentioned in the comment. --- src/transport/base.rs | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/src/transport/base.rs b/src/transport/base.rs index 2b34544..88fda0c 100644 --- a/src/transport/base.rs +++ b/src/transport/base.rs @@ -55,19 +55,17 @@ impl BaseTransport { /// Subscribe to events targeting a pubkey (both regular and encrypted). /// - /// Uses two filters: one for ephemeral ContextVM messages (kind 25910) - /// with `since: now()`, and one for NIP-59 gift wraps (kind 1059) without - /// a `since` constraint. Gift wraps use randomized timestamps per NIP-59, - /// so a `since: now()` filter would reject most incoming encrypted messages. + /// Uses three filters: one for ephemeral ContextVM messages (kind 25910) + /// and two for NIP-59 gift wraps (kinds 1059 and 21059). pub async fn subscribe_for_pubkey(&self, pubkey: &PublicKey) -> Result<()> { let p_tag = pubkey.to_hex(); + let now = Timestamp::now(); let ephemeral_filter = Filter::new() .kind(Kind::Custom(CTXVM_MESSAGES_KIND)) .custom_tag(SingleLetterTag::lowercase(Alphabet::P), p_tag.clone()) - .since(Timestamp::now()); + .since(now); - let now = Timestamp::now(); let gift_wrap_filter = Filter::new() .kind(Kind::Custom(GIFT_WRAP_KIND)) .custom_tag(SingleLetterTag::lowercase(Alphabet::P), p_tag.clone()) From d6fdb3d9be6a63329e0c92ab424ee0eeb36b6f83 Mon Sep 17 00:00:00 2001 From: Harsh Date: Fri, 10 Apr 2026 01:40:46 +0530 Subject: [PATCH 037/116] fix: implement gift-wrap deduplication using LRU cache --- Cargo.toml | 3 +++ src/transport/client.rs | 45 +++++++++++++++++++++++++++++++++++++++-- src/transport/server.rs | 37 ++++++++++++++++++++++++++++++++- 3 files changed, 82 insertions(+), 3 deletions(-) diff --git a/Cargo.toml b/Cargo.toml index e4e03ba..95e675a 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -28,6 +28,9 @@ tracing-subscriber = { version = "0.3", features = ["env-filter"] } # Optional MCP integration (Rust equivalent to TS @modelcontextprotocol/sdk) rmcp = { version = "0.16.0", features = ["server", "client", "macros", "transport-worker"], optional = true } +# LRU cache for gift-wrap (outer event id) deduplication +lru = "0.12" + [features] # Enable rmcp by default while keeping legacy APIs available. default = ["rmcp"] diff --git a/src/transport/client.rs b/src/transport/client.rs index b61704d..f7d9541 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -4,9 +4,11 @@ //! kind 25910 events, correlates responses via `e` tag. use std::collections::HashSet; -use std::sync::Arc; +use std::num::NonZeroUsize; +use std::sync::{Arc, Mutex}; use std::time::Duration; +use lru::LruCache; use nostr_sdk::prelude::*; use tokio::sync::RwLock; @@ -59,6 +61,10 @@ pub struct NostrClientTransport { server_pubkey: PublicKey, /// Pending request event IDs awaiting responses. pending_requests: Arc>>, + /// Outer gift-wrap event IDs successfully decrypted and verified (inner `verify()`). + /// Duplicate outer ids are skipped before decrypt; ids are inserted only after success + /// so failed decrypt/verify can be retried on redelivery. + seen_gift_wrap_ids: Arc>>, /// Channel for receiving processed MCP messages from the event loop. message_tx: tokio::sync::mpsc::UnboundedSender, message_rx: Option>, @@ -91,6 +97,9 @@ impl NostrClientTransport { error })?); let (tx, rx) = tokio::sync::mpsc::unbounded_channel(); + let seen_gift_wrap_ids = Arc::new(Mutex::new(LruCache::new( + NonZeroUsize::new(DEFAULT_LRU_SIZE).expect("DEFAULT_LRU_SIZE must be non-zero"), + ))); tracing::info!( target: LOG_TARGET, @@ -108,6 +117,7 @@ impl NostrClientTransport { config, server_pubkey, pending_requests: Arc::new(RwLock::new(HashSet::new())), + seen_gift_wrap_ids, message_tx: tx, message_rx: Some(rx), }) @@ -160,9 +170,18 @@ impl NostrClientTransport { let server_pubkey = self.server_pubkey; let tx = self.message_tx.clone(); let encryption_mode = self.config.encryption_mode; + let seen_gift_wrap_ids = self.seen_gift_wrap_ids.clone(); tokio::spawn(async move { - Self::event_loop(client, pending, server_pubkey, tx, encryption_mode).await; + Self::event_loop( + client, + pending, + server_pubkey, + tx, + encryption_mode, + seen_gift_wrap_ids, + ) + .await; }); tracing::info!( @@ -266,6 +285,7 @@ impl NostrClientTransport { server_pubkey: PublicKey, tx: tokio::sync::mpsc::UnboundedSender, encryption_mode: EncryptionMode, + seen_gift_wrap_ids: Arc>>, ) { let mut notifications = client.notifications(); @@ -291,6 +311,20 @@ impl NostrClientTransport { // Handle gift-wrapped events let (actual_event_content, actual_pubkey, e_tag) = if is_gift_wrap { + { + let guard = match seen_gift_wrap_ids.lock() { + Ok(g) => g, + Err(poisoned) => poisoned.into_inner(), + }; + if guard.contains(&event.id) { + tracing::debug!( + target: LOG_TARGET, + event_id = %event.id.to_hex(), + "Skipping duplicate gift-wrap (outer id)" + ); + continue; + } + } // Single-layer NIP-44 decrypt (matches JS/TS SDK) let signer = match client.signer().await { Ok(s) => s, @@ -313,6 +347,13 @@ impl NostrClientTransport { ); continue; } + { + let mut guard = match seen_gift_wrap_ids.lock() { + Ok(g) => g, + Err(poisoned) => poisoned.into_inner(), + }; + guard.put(event.id, ()); + } let e_tag = serializers::get_tag_value(&inner.tags, "e"); (inner.content, inner.pubkey, e_tag) } diff --git a/src/transport/server.rs b/src/transport/server.rs index 69f9d3a..c7cc912 100644 --- a/src/transport/server.rs +++ b/src/transport/server.rs @@ -5,9 +5,11 @@ //! server announcements. use std::collections::HashMap; -use std::sync::Arc; +use std::num::NonZeroUsize; +use std::sync::{Arc, Mutex}; use std::time::Duration; +use lru::LruCache; use nostr_sdk::prelude::*; use tokio::sync::RwLock; @@ -69,6 +71,10 @@ pub struct NostrServerTransport { sessions: Arc>>, /// Reverse lookup: event_id → client_pubkey_hex event_to_client: Arc>>, + /// Outer gift-wrap event IDs successfully decrypted and verified (inner `verify()`). + /// Duplicate outer ids are skipped before decrypt; ids are inserted only after success + /// so failed decrypt/verify can be retried on redelivery. + seen_gift_wrap_ids: Arc>>, /// Channel for incoming MCP messages (consumed by the MCP server). message_tx: tokio::sync::mpsc::UnboundedSender, message_rx: Option>, @@ -104,6 +110,9 @@ impl NostrServerTransport { error })?); let (tx, rx) = tokio::sync::mpsc::unbounded_channel(); + let seen_gift_wrap_ids = Arc::new(Mutex::new(LruCache::new( + NonZeroUsize::new(DEFAULT_LRU_SIZE).expect("DEFAULT_LRU_SIZE must be non-zero"), + ))); tracing::info!( target: LOG_TARGET, @@ -121,6 +130,7 @@ impl NostrServerTransport { config, sessions: Arc::new(RwLock::new(HashMap::new())), event_to_client: Arc::new(RwLock::new(HashMap::new())), + seen_gift_wrap_ids, message_tx: tx, message_rx: Some(rx), }) @@ -175,6 +185,7 @@ impl NostrServerTransport { let allowed = self.config.allowed_public_keys.clone(); let excluded = self.config.excluded_capabilities.clone(); let encryption_mode = self.config.encryption_mode; + let seen_gift_wrap_ids = self.seen_gift_wrap_ids.clone(); tokio::spawn(async move { Self::event_loop( @@ -185,6 +196,7 @@ impl NostrServerTransport { allowed, excluded, encryption_mode, + seen_gift_wrap_ids, ) .await; }); @@ -585,6 +597,7 @@ impl NostrServerTransport { }) } + #[allow(clippy::too_many_arguments)] async fn event_loop( client: Arc, sessions: Arc>>, @@ -593,6 +606,7 @@ impl NostrServerTransport { allowed_pubkeys: Vec, excluded_capabilities: Vec, encryption_mode: EncryptionMode, + seen_gift_wrap_ids: Arc>>, ) { let mut notifications = client.notifications(); @@ -611,6 +625,20 @@ impl NostrServerTransport { ); continue; } + { + let guard = match seen_gift_wrap_ids.lock() { + Ok(g) => g, + Err(poisoned) => poisoned.into_inner(), + }; + if guard.contains(&event.id) { + tracing::debug!( + target: LOG_TARGET, + event_id = %event.id.to_hex(), + "Skipping duplicate gift-wrap (outer id)" + ); + continue; + } + } // Single-layer NIP-44 decrypt (matches JS/TS SDK) let signer = match client.signer().await { Ok(s) => s, @@ -636,6 +664,13 @@ impl NostrServerTransport { ); continue; } + { + let mut guard = match seen_gift_wrap_ids.lock() { + Ok(g) => g, + Err(poisoned) => poisoned.into_inner(), + }; + guard.put(event.id, ()); + } ( inner.content, inner.pubkey.to_hex(), From b7fe8efb18c5a065229280293489b7f5fee5233c Mon Sep 17 00:00:00 2001 From: Harsh Date: Sun, 12 Apr 2026 04:24:07 +0530 Subject: [PATCH 038/116] refactor: extract RelayPoolTrait and implement MockRelayPool for testing --- src/relay/mock.rs | 306 ++++++++++++++++++++++++++++++++++++++++ src/relay/mod.rs | 70 +++++++++ src/transport/base.rs | 5 +- src/transport/client.rs | 29 ++-- src/transport/server.rs | 29 ++-- 5 files changed, 408 insertions(+), 31 deletions(-) create mode 100644 src/relay/mock.rs diff --git a/src/relay/mock.rs b/src/relay/mock.rs new file mode 100644 index 0000000..53039b2 --- /dev/null +++ b/src/relay/mock.rs @@ -0,0 +1,306 @@ +//! In-memory mock relay pool for network-free testing. +//! +//! Mirrors the design of the TypeScript SDK's `MockRelayHub`: +//! - `publish_event` stores the event and broadcasts it to all `notifications()` receivers. +//! - `subscribe` registers filters and immediately replays matching stored events through the +//! broadcast, so listeners that called `notifications()` before `subscribe()` see the replay. +//! - `connect` / `disconnect` are no-ops — no sockets are opened. +//! - Signing uses a freshly generated ephemeral `Keys`; `signer()` returns it wrapped in `Arc` +//! so encryption code can call it without any real relay connection. + +use std::collections::HashMap; +use std::sync::Arc; + +use async_trait::async_trait; +use tokio::sync::Mutex; + +use nostr_sdk::prelude::*; + +use crate::core::error::{Error, Result}; +use crate::relay::RelayPoolTrait; + +// ── Internal state ──────────────────────────────────────────────────────────── + +struct MockRelayInner { + events: Vec, + /// Active subscriptions: id → filters registered by that subscription. + subscriptions: HashMap>, + next_sub_id: u32, +} + +impl MockRelayInner { + fn new() -> Self { + Self { + events: Vec::new(), + subscriptions: HashMap::new(), + next_sub_id: 0, + } + } +} + +// ── Public struct ───────────────────────────────────────────────────────────── + +/// In-memory relay pool for deterministic, network-free testing. +/// +/// Create one with [`MockRelayPool::new`] and pass it (wrapped in `Arc`) wherever +/// an `Arc` is expected. +pub struct MockRelayPool { + inner: Arc>, + /// Broadcast sender — every published event is sent here so that all + /// `notifications()` receivers see it. + notification_tx: tokio::sync::broadcast::Sender, + /// Ephemeral key used for signing in `publish` / `sign` / `signer`. + keys: Keys, +} + +impl MockRelayPool { + /// Create a new mock relay pool with a freshly generated ephemeral signing key. + pub fn new() -> Self { + let keys = Keys::generate(); + let (tx, _rx) = tokio::sync::broadcast::channel(1024); + Self { + inner: Arc::new(Mutex::new(MockRelayInner::new())), + notification_tx: tx, + keys, + } + } + + /// The ephemeral public key used by this mock for signing. + pub fn mock_public_key(&self) -> PublicKey { + self.keys.public_key() + } + + /// Clone of all events published so far (useful for assertions in tests). + pub async fn stored_events(&self) -> Vec { + self.inner.lock().await.events.clone() + } +} + +impl Default for MockRelayPool { + fn default() -> Self { + Self::new() + } +} + +// ── RelayPoolTrait impl ─────────────────────────────────────────────────────── + +#[async_trait] +impl RelayPoolTrait for MockRelayPool { + /// No-op: the mock has no sockets to open. + async fn connect(&self, _relay_urls: &[String]) -> Result<()> { + Ok(()) + } + + /// No-op: the mock has no sockets to close. + async fn disconnect(&self) -> Result<()> { + Ok(()) + } + + /// Store the event and broadcast it to all current `notifications()` receivers. + async fn publish_event(&self, event: &Event) -> Result { + let event_id = event.id; + + { + let mut inner = self.inner.lock().await; + inner.events.push(event.clone()); + } + + // Always broadcast — consumers filter by kind/pubkey/tag themselves, + // which mirrors how nostr-sdk's real notification stream works. + let notification = make_notification(event.clone()); + // Ignore send errors: they just mean there are no active receivers yet. + let _ = self.notification_tx.send(notification); + + Ok(event_id) + } + + /// Sign `builder` with the ephemeral key, then call `publish_event`. + async fn publish(&self, builder: EventBuilder) -> Result { + let event = sign_with_keys(builder, &self.keys)?; + let id = event.id; + self.publish_event(&event).await?; + Ok(id) + } + + /// Sign `builder` with the ephemeral key and return the event without publishing. + async fn sign(&self, builder: EventBuilder) -> Result { + sign_with_keys(builder, &self.keys) + } + + /// Return the ephemeral key as a signer. + async fn signer(&self) -> Result> { + Ok(Arc::new(self.keys.clone()) as Arc) + } + + /// Return a new broadcast receiver. Each call gets an independent receiver + /// that sees all events published *after* this call, plus any replayed by + /// a subsequent `subscribe()`. + fn notifications(&self) -> tokio::sync::broadcast::Receiver { + self.notification_tx.subscribe() + } + + /// Return the ephemeral public key. + async fn public_key(&self) -> Result { + Ok(self.keys.public_key()) + } + + /// Register the filters and immediately replay any already-stored events that + /// match them through the broadcast channel, mirroring the behaviour of a + /// real relay that sends historical events before EOSE. + async fn subscribe(&self, filters: Vec) -> Result<()> { + let replay = { + let mut inner = self.inner.lock().await; + let sub_id = inner.next_sub_id; + inner.next_sub_id += 1; + + // Store filters first so the replay read comes from the stored value, + // ensuring the field is both written and read (no dead-code warning). + inner.subscriptions.insert(sub_id, filters); + + // Clone events so we can release the events borrow before borrowing subscriptions. + let events_snapshot = inner.events.clone(); + let stored = inner.subscriptions.get(&sub_id).expect("just inserted"); + events_snapshot + .into_iter() + .filter(|e| { + stored + .iter() + .any(|f| f.match_event(e, MatchEventOptions::default())) + }) + .collect::>() + }; + + for event in replay { + let _ = self.notification_tx.send(make_notification(event)); + } + + Ok(()) + } +} + +// ── Helpers ─────────────────────────────────────────────────────────────────── + +fn sign_with_keys(builder: EventBuilder, keys: &Keys) -> Result { + builder + .sign_with_keys(keys) + .map_err(|e| Error::Transport(e.to_string())) +} + +fn make_notification(event: Event) -> RelayPoolNotification { + RelayPoolNotification::Event { + relay_url: RelayUrl::parse("wss://mock.relay").expect("hardcoded URL"), + subscription_id: SubscriptionId::generate(), + event: Box::new(event), + } +} + +// ── Unit tests ──────────────────────────────────────────────────────────────── + +#[cfg(test)] +mod tests { + use super::*; + + #[tokio::test] + async fn connect_and_disconnect_are_noops() { + let pool = MockRelayPool::new(); + assert!(pool.connect(&["wss://unused".to_string()]).await.is_ok()); + assert!(pool.disconnect().await.is_ok()); + } + + #[tokio::test] + async fn publish_event_stores_and_broadcasts() { + let pool = MockRelayPool::new(); + let mut rx = pool.notifications(); + + let keys = Keys::generate(); + let event = EventBuilder::new(Kind::TextNote, "hello") + .sign_with_keys(&keys) + .unwrap(); + + pool.publish_event(&event).await.unwrap(); + + assert_eq!(pool.stored_events().await.len(), 1); + let notif = rx.try_recv().unwrap(); + if let RelayPoolNotification::Event { event: e, .. } = notif { + assert_eq!(e.id, event.id); + } else { + panic!("expected Event notification"); + } + } + + #[tokio::test] + async fn publish_signs_and_stores() { + let pool = MockRelayPool::new(); + let builder = EventBuilder::new(Kind::TextNote, "signed"); + pool.publish(builder).await.unwrap(); + let stored = pool.stored_events().await; + assert_eq!(stored.len(), 1); + assert_eq!(stored[0].pubkey, pool.mock_public_key()); + } + + #[tokio::test] + async fn sign_does_not_publish() { + let pool = MockRelayPool::new(); + let builder = EventBuilder::new(Kind::TextNote, "unsigned"); + let event = pool.sign(builder).await.unwrap(); + assert_eq!(event.pubkey, pool.mock_public_key()); + assert!(pool.stored_events().await.is_empty()); + } + + #[tokio::test] + async fn signer_uses_same_key_as_publish() { + let pool = MockRelayPool::new(); + let signer = pool.signer().await.unwrap(); + let expected_pubkey = pool.mock_public_key(); + assert_eq!(signer.get_public_key().await.unwrap(), expected_pubkey); + } + + #[tokio::test] + async fn subscribe_replays_matching_stored_events() { + let pool = MockRelayPool::new(); + let mut rx = pool.notifications(); + + // Pre-publish two events + let keys = Keys::generate(); + let e1 = EventBuilder::new(Kind::TextNote, "one") + .sign_with_keys(&keys) + .unwrap(); + let e2 = EventBuilder::new(Kind::Custom(9999), "two") + .sign_with_keys(&keys) + .unwrap(); + pool.publish_event(&e1).await.unwrap(); + pool.publish_event(&e2).await.unwrap(); + + // Drain the two publish notifications + rx.try_recv().unwrap(); + rx.try_recv().unwrap(); + + // Subscribe for TextNote only — e1 should be replayed, e2 not + let filter = Filter::new().kind(Kind::TextNote); + pool.subscribe(vec![filter]).await.unwrap(); + + let replayed = rx.try_recv().unwrap(); + if let RelayPoolNotification::Event { event, .. } = replayed { + assert_eq!(event.id, e1.id); + } else { + panic!("expected replayed Event notification"); + } + // e2 should not be replayed + assert!(rx.try_recv().is_err()); + } + + #[tokio::test] + async fn notifications_receives_future_publishes() { + let pool = MockRelayPool::new(); + let mut rx = pool.notifications(); + + let keys = Keys::generate(); + let event = EventBuilder::new(Kind::TextNote, "future") + .sign_with_keys(&keys) + .unwrap(); + pool.publish_event(&event).await.unwrap(); + + let notif = rx.try_recv().unwrap(); + assert!(matches!(notif, RelayPoolNotification::Event { .. })); + } +} diff --git a/src/relay/mod.rs b/src/relay/mod.rs index dedc94f..198a5a7 100644 --- a/src/relay/mod.rs +++ b/src/relay/mod.rs @@ -2,10 +2,38 @@ //! //! Wraps nostr-sdk's Client for relay connection, event publishing, and subscription. +pub mod mock; +pub use mock::MockRelayPool; + +use async_trait::async_trait; + use crate::core::error::{Error, Result}; use nostr_sdk::prelude::*; use std::sync::Arc; +/// Trait abstracting relay pool operations, enabling dependency injection and testing. +#[async_trait] +pub trait RelayPoolTrait: Send + Sync { + /// Connect to the given relay URLs. + async fn connect(&self, relay_urls: &[String]) -> Result<()>; + /// Disconnect from all relays. + async fn disconnect(&self) -> Result<()>; + /// Publish a pre-built event to relays. + async fn publish_event(&self, event: &Event) -> Result; + /// Build, sign, and publish an event from a builder. + async fn publish(&self, builder: EventBuilder) -> Result; + /// Sign an event builder without publishing. + async fn sign(&self, builder: EventBuilder) -> Result; + /// Get the signer associated with this relay pool. + async fn signer(&self) -> Result>; + /// Get notifications receiver for event streaming. + fn notifications(&self) -> tokio::sync::broadcast::Receiver; + /// Get the public key of the signer. + async fn public_key(&self) -> Result; + /// Subscribe to events matching filters. + async fn subscribe(&self, filters: Vec) -> Result<()>; +} + /// Relay pool wrapper for managing Nostr relay connections. pub struct RelayPool { client: Arc, @@ -106,3 +134,45 @@ impl RelayPool { Ok(()) } } + +#[async_trait] +impl RelayPoolTrait for RelayPool { + async fn connect(&self, relay_urls: &[String]) -> Result<()> { + RelayPool::connect(self, relay_urls).await + } + + async fn disconnect(&self) -> Result<()> { + RelayPool::disconnect(self).await + } + + async fn publish_event(&self, event: &Event) -> Result { + RelayPool::publish_event(self, event).await + } + + async fn publish(&self, builder: EventBuilder) -> Result { + RelayPool::publish(self, builder).await + } + + async fn sign(&self, builder: EventBuilder) -> Result { + RelayPool::sign(self, builder).await + } + + async fn signer(&self) -> Result> { + self.client + .signer() + .await + .map_err(|e| Error::Other(e.to_string())) + } + + fn notifications(&self) -> tokio::sync::broadcast::Receiver { + RelayPool::notifications(self) + } + + async fn public_key(&self) -> Result { + RelayPool::public_key(self).await + } + + async fn subscribe(&self, filters: Vec) -> Result<()> { + RelayPool::subscribe(self, filters).await + } +} diff --git a/src/transport/base.rs b/src/transport/base.rs index 88fda0c..4f488a5 100644 --- a/src/transport/base.rs +++ b/src/transport/base.rs @@ -9,7 +9,7 @@ use crate::core::serializers; use crate::core::types::{EncryptionMode, JsonRpcMessage}; use crate::core::validation; use crate::encryption; -use crate::relay::RelayPool; +use crate::relay::RelayPoolTrait; const LOG_TARGET: &str = "contextvm_sdk::transport::base"; @@ -20,7 +20,7 @@ const LOG_TARGET: &str = "contextvm_sdk::transport::base"; /// and [`NostrServerTransport`](super::server::NostrServerTransport). pub struct BaseTransport { /// The relay pool for publishing and subscribing to Nostr events. - pub relay_pool: Arc, + pub relay_pool: Arc, /// The encryption policy for outgoing messages. pub encryption_mode: EncryptionMode, /// Whether the transport is currently connected to relays. @@ -125,7 +125,6 @@ impl BaseTransport { serde_json::to_string(&event).map_err(|e| Error::Encryption(e.to_string()))?; let signer = self .relay_pool - .client() .signer() .await .map_err(|e| Error::Encryption(e.to_string()))?; diff --git a/src/transport/client.rs b/src/transport/client.rs index f7d9541..23f2853 100644 --- a/src/transport/client.rs +++ b/src/transport/client.rs @@ -18,7 +18,7 @@ use crate::core::serializers; use crate::core::types::*; use crate::core::validation; use crate::encryption; -use crate::relay::RelayPool; +use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; use crate::util::tracing_setup; @@ -88,14 +88,15 @@ impl NostrClientTransport { Error::Other(format!("Invalid server pubkey: {error}")) })?; - let relay_pool = Arc::new(RelayPool::new(signer).await.map_err(|error| { - tracing::error!( - target: LOG_TARGET, - error = %error, - "Failed to initialize relay pool for client transport" - ); - error - })?); + let relay_pool: Arc = + Arc::new(RelayPool::new(signer).await.map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to initialize relay pool for client transport" + ); + error + })?); let (tx, rx) = tokio::sync::mpsc::unbounded_channel(); let seen_gift_wrap_ids = Arc::new(Mutex::new(LruCache::new( NonZeroUsize::new(DEFAULT_LRU_SIZE).expect("DEFAULT_LRU_SIZE must be non-zero"), @@ -165,7 +166,7 @@ impl NostrClientTransport { })?; // Spawn event loop - let client = self.base.relay_pool.client().clone(); + let relay_pool = Arc::clone(&self.base.relay_pool); let pending = self.pending_requests.clone(); let server_pubkey = self.server_pubkey; let tx = self.message_tx.clone(); @@ -174,7 +175,7 @@ impl NostrClientTransport { tokio::spawn(async move { Self::event_loop( - client, + relay_pool, pending, server_pubkey, tx, @@ -280,14 +281,14 @@ impl NostrClientTransport { } async fn event_loop( - client: Arc, + relay_pool: Arc, pending: Arc>>, server_pubkey: PublicKey, tx: tokio::sync::mpsc::UnboundedSender, encryption_mode: EncryptionMode, seen_gift_wrap_ids: Arc>>, ) { - let mut notifications = client.notifications(); + let mut notifications = relay_pool.notifications(); while let Ok(notification) = notifications.recv().await { if let RelayPoolNotification::Event { event, .. } = notification { @@ -326,7 +327,7 @@ impl NostrClientTransport { } } // Single-layer NIP-44 decrypt (matches JS/TS SDK) - let signer = match client.signer().await { + let signer = match relay_pool.signer().await { Ok(s) => s, Err(error) => { tracing::error!( diff --git a/src/transport/server.rs b/src/transport/server.rs index c7cc912..9a41c2c 100644 --- a/src/transport/server.rs +++ b/src/transport/server.rs @@ -18,7 +18,7 @@ use crate::core::error::{Error, Result}; use crate::core::types::*; use crate::core::validation; use crate::encryption; -use crate::relay::RelayPool; +use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; use crate::util::tracing_setup; @@ -101,14 +101,15 @@ impl NostrServerTransport { { tracing_setup::init_tracer(config.log_file_path.as_deref())?; - let relay_pool = Arc::new(RelayPool::new(signer).await.map_err(|error| { - tracing::error!( - target: LOG_TARGET, - error = %error, - "Failed to initialize relay pool for server transport" - ); - error - })?); + let relay_pool: Arc = + Arc::new(RelayPool::new(signer).await.map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to initialize relay pool for server transport" + ); + error + })?); let (tx, rx) = tokio::sync::mpsc::unbounded_channel(); let seen_gift_wrap_ids = Arc::new(Mutex::new(LruCache::new( NonZeroUsize::new(DEFAULT_LRU_SIZE).expect("DEFAULT_LRU_SIZE must be non-zero"), @@ -178,7 +179,7 @@ impl NostrServerTransport { })?; // Spawn event loop - let client = self.base.relay_pool.client().clone(); + let relay_pool = Arc::clone(&self.base.relay_pool); let sessions = self.sessions.clone(); let event_to_client = self.event_to_client.clone(); let tx = self.message_tx.clone(); @@ -189,7 +190,7 @@ impl NostrServerTransport { tokio::spawn(async move { Self::event_loop( - client, + relay_pool, sessions, event_to_client, tx, @@ -599,7 +600,7 @@ impl NostrServerTransport { #[allow(clippy::too_many_arguments)] async fn event_loop( - client: Arc, + relay_pool: Arc, sessions: Arc>>, event_to_client: Arc>>, tx: tokio::sync::mpsc::UnboundedSender, @@ -608,7 +609,7 @@ impl NostrServerTransport { encryption_mode: EncryptionMode, seen_gift_wrap_ids: Arc>>, ) { - let mut notifications = client.notifications(); + let mut notifications = relay_pool.notifications(); while let Ok(notification) = notifications.recv().await { if let RelayPoolNotification::Event { event, .. } = notification { @@ -640,7 +641,7 @@ impl NostrServerTransport { } } // Single-layer NIP-44 decrypt (matches JS/TS SDK) - let signer = match client.signer().await { + let signer = match relay_pool.signer().await { Ok(s) => s, Err(error) => { tracing::error!( From 26dfe1371d032a45659ce0be71638e91adf8803e Mon Sep 17 00:00:00 2001 From: Harsh Date: Wed, 22 Apr 2026 06:53:59 +0530 Subject: [PATCH 039/116] test: add conformance tests for gift-wrap deduplication --- tests/conformance_dedup.rs | 113 +++++++++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 tests/conformance_dedup.rs diff --git a/tests/conformance_dedup.rs b/tests/conformance_dedup.rs new file mode 100644 index 0000000..3f53050 --- /dev/null +++ b/tests/conformance_dedup.rs @@ -0,0 +1,113 @@ +//! Conformance tests for gift-wrap deduplication via LRU cache. +//! +//! Both the client and server transports use an `LruCache` to skip +//! duplicate outer gift-wrap event IDs. The dedup check happens *before* decrypt +//! and the insert happens only *after* successful decrypt + inner `verify()`. +//! These tests exercise the LRU cache logic in isolation — no async, no transport. + +use std::num::NonZeroUsize; + +use lru::LruCache; +use nostr_sdk::prelude::*; + +use contextvm_sdk::core::constants::DEFAULT_LRU_SIZE; + +/// Helper: build a cache with the same capacity used by both transports. +fn new_dedup_cache() -> LruCache { + LruCache::new(NonZeroUsize::new(DEFAULT_LRU_SIZE).expect("DEFAULT_LRU_SIZE must be non-zero")) +} + +fn event_id_from_byte(b: u8) -> EventId { + EventId::from_byte_array([b; 32]) +} + +// ── Gift-wrap kind 1059 dedup ───────────────────────────────────────────────── + +#[test] +fn client_dedup_skips_duplicate_outer_gift_wrap_id() { + let mut cache = new_dedup_cache(); + let outer_id = event_id_from_byte(0x01); + + // First delivery: not yet seen, decrypt succeeds, insert into cache. + assert!( + !cache.contains(&outer_id), + "first delivery must not be in cache yet" + ); + cache.put(outer_id, ()); + + // Second delivery: same outer id is already cached, skip before decrypt. + assert!( + cache.contains(&outer_id), + "second delivery of the same outer id must be rejected" + ); +} + +#[test] +fn client_dedup_ephemeral_gift_wrap_skips_duplicate() { + let mut cache = new_dedup_cache(); + let ephemeral_outer_id = event_id_from_byte(0xE1); + + // First delivery of an ephemeral gift-wrap (kind 21059). + assert!( + !cache.contains(&ephemeral_outer_id), + "first delivery must not be in cache yet" + ); + cache.put(ephemeral_outer_id, ()); + + // Second delivery: same outer id is already cached, skip before decrypt. + assert!( + cache.contains(&ephemeral_outer_id), + "second delivery of the same ephemeral outer id must be rejected" + ); +} + +// ── Server dedup ────────────────────────────────────────────────────────────── + +#[test] +fn server_dedup_ephemeral_gift_wrap_skips_duplicate() { + let mut cache = new_dedup_cache(); + let ephemeral_outer_id = event_id_from_byte(0xE2); + + // First delivery of an ephemeral gift-wrap (kind 21059). + assert!( + !cache.contains(&ephemeral_outer_id), + "first delivery must not be in cache yet" + ); + cache.put(ephemeral_outer_id, ()); + + // Second delivery: same outer id is already cached, skip before decrypt. + assert!( + cache.contains(&ephemeral_outer_id), + "second delivery of the same ephemeral outer id must be rejected" + ); +} + +#[test] +fn server_dedup_lru_evicts_oldest_when_capacity_reached() { + let capacity = 3; + let mut cache: LruCache = + LruCache::new(NonZeroUsize::new(capacity).expect("non-zero")); + + let id_0 = event_id_from_byte(0x00); + let id_1 = event_id_from_byte(0x01); + let id_2 = event_id_from_byte(0x02); + let id_3 = event_id_from_byte(0x03); + + cache.put(id_0, ()); + cache.put(id_1, ()); + cache.put(id_2, ()); + + // Cache is at capacity (3). Inserting a fourth must evict the oldest (id_0). + cache.put(id_3, ()); + + assert!( + !cache.contains(&id_0), + "oldest entry must be evicted when capacity is exceeded" + ); + assert!(cache.contains(&id_1), "second entry must still be present"); + assert!(cache.contains(&id_2), "third entry must still be present"); + assert!( + cache.contains(&id_3), + "newly inserted entry must be present" + ); +} From ce94af140d4ac19db5b7a0601a06afb0fcfe4c36 Mon Sep 17 00:00:00 2001 From: Harsh Date: Wed, 22 Apr 2026 08:30:33 +0530 Subject: [PATCH 040/116] refactor: extract ClientCorrelationStore and ServerEventRouteStore into dedicated modules --- src/lib.rs | 8 +- src/transport/client/correlation_store.rs | 74 +++++++++++++ src/transport/{client.rs => client/mod.rs} | 21 ++-- src/transport/mod.rs | 4 +- src/transport/server/correlation_store.rs | 114 +++++++++++++++++++++ src/transport/{server.rs => server/mod.rs} | 91 ++++++++-------- 6 files changed, 250 insertions(+), 62 deletions(-) create mode 100644 src/transport/client/correlation_store.rs rename src/transport/{client.rs => client/mod.rs} (97%) create mode 100644 src/transport/server/correlation_store.rs rename src/transport/{server.rs => server/mod.rs} (94%) diff --git a/src/lib.rs b/src/lib.rs index 2157224..80f5945 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -57,8 +57,12 @@ pub use core::types::{ }; pub use discovery::ServerAnnouncement; pub use relay::RelayPool; -pub use transport::client::{NostrClientTransport, NostrClientTransportConfig}; -pub use transport::server::{IncomingRequest, NostrServerTransport, NostrServerTransportConfig}; +pub use transport::client::{ + ClientCorrelationStore, NostrClientTransport, NostrClientTransportConfig, +}; +pub use transport::server::{ + IncomingRequest, NostrServerTransport, NostrServerTransportConfig, ServerEventRouteStore, +}; #[cfg(feature = "rmcp")] pub use rmcp; diff --git a/src/transport/client/correlation_store.rs b/src/transport/client/correlation_store.rs new file mode 100644 index 0000000..e080fa5 --- /dev/null +++ b/src/transport/client/correlation_store.rs @@ -0,0 +1,74 @@ +//! Client-side correlation store for tracking pending request event IDs. + +use std::collections::HashSet; +use std::sync::Arc; + +use tokio::sync::RwLock; + +/// Tracks pending request event IDs awaiting responses on the client side. +#[derive(Clone)] +pub struct ClientCorrelationStore { + pending_requests: Arc>>, +} + +impl Default for ClientCorrelationStore { + fn default() -> Self { + Self::new() + } +} + +impl ClientCorrelationStore { + pub fn new() -> Self { + Self { + pending_requests: Arc::new(RwLock::new(HashSet::new())), + } + } + + pub async fn register(&self, event_id: String) { + self.pending_requests.write().await.insert(event_id); + } + + pub async fn contains(&self, event_id: &str) -> bool { + self.pending_requests.read().await.contains(event_id) + } + + pub async fn remove(&self, event_id: &str) { + self.pending_requests.write().await.remove(event_id); + } + + pub async fn clear(&self) { + self.pending_requests.write().await.clear(); + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[tokio::test] + async fn remove_nonexistent_is_noop() { + let store = ClientCorrelationStore::new(); + store.remove("nonexistent").await; + assert!(!store.contains("nonexistent").await); + } + + #[tokio::test] + async fn contains_after_clear() { + let store = ClientCorrelationStore::new(); + store.register("e1".into()).await; + store.register("e2".into()).await; + assert!(store.contains("e1").await); + store.clear().await; + assert!(!store.contains("e1").await); + assert!(!store.contains("e2").await); + } + + #[tokio::test] + async fn register_and_remove_roundtrip() { + let store = ClientCorrelationStore::new(); + store.register("e1".into()).await; + assert!(store.contains("e1").await); + store.remove("e1").await; + assert!(!store.contains("e1").await); + } +} diff --git a/src/transport/client.rs b/src/transport/client/mod.rs similarity index 97% rename from src/transport/client.rs rename to src/transport/client/mod.rs index 23f2853..cdd3e5b 100644 --- a/src/transport/client.rs +++ b/src/transport/client/mod.rs @@ -3,14 +3,16 @@ //! Connects to a remote MCP server over Nostr. Sends JSON-RPC requests as //! kind 25910 events, correlates responses via `e` tag. -use std::collections::HashSet; +pub mod correlation_store; + +pub use correlation_store::ClientCorrelationStore; + use std::num::NonZeroUsize; use std::sync::{Arc, Mutex}; use std::time::Duration; use lru::LruCache; use nostr_sdk::prelude::*; -use tokio::sync::RwLock; use crate::core::constants::*; use crate::core::error::{Error, Result}; @@ -60,7 +62,7 @@ pub struct NostrClientTransport { config: NostrClientTransportConfig, server_pubkey: PublicKey, /// Pending request event IDs awaiting responses. - pending_requests: Arc>>, + pending_requests: ClientCorrelationStore, /// Outer gift-wrap event IDs successfully decrypted and verified (inner `verify()`). /// Duplicate outer ids are skipped before decrypt; ids are inserted only after success /// so failed decrypt/verify can be retried on redelivery. @@ -117,7 +119,7 @@ impl NostrClientTransport { }, config, server_pubkey, - pending_requests: Arc::new(RwLock::new(HashSet::new())), + pending_requests: ClientCorrelationStore::new(), seen_gift_wrap_ids, message_tx: tx, message_rx: Some(rx), @@ -238,10 +240,7 @@ impl NostrClientTransport { })?; if matches!(message, JsonRpcMessage::Request(_)) { - self.pending_requests - .write() - .await - .insert(event_id.to_hex()); + self.pending_requests.register(event_id.to_hex()).await; } tracing::debug!( @@ -282,7 +281,7 @@ impl NostrClientTransport { async fn event_loop( relay_pool: Arc, - pending: Arc>>, + pending: ClientCorrelationStore, server_pubkey: PublicKey, tx: tokio::sync::mpsc::UnboundedSender, encryption_mode: EncryptionMode, @@ -395,7 +394,7 @@ impl NostrClientTransport { // Correlate response if let Some(ref correlated_id) = e_tag { - let is_pending = pending.read().await.contains(correlated_id.as_str()); + let is_pending = pending.contains(correlated_id.as_str()).await; if !is_pending { tracing::warn!( target: LOG_TARGET, @@ -410,7 +409,7 @@ impl NostrClientTransport { if let Some(mcp_msg) = validation::validate_and_parse(&actual_event_content) { // Clean up pending request if let Some(ref correlated_id) = e_tag { - pending.write().await.remove(correlated_id.as_str()); + pending.remove(correlated_id.as_str()).await; } let _ = tx.send(mcp_msg); } diff --git a/src/transport/mod.rs b/src/transport/mod.rs index 13a4f8a..0a31f45 100644 --- a/src/transport/mod.rs +++ b/src/transport/mod.rs @@ -7,5 +7,5 @@ pub mod base; pub mod client; pub mod server; -pub use client::{NostrClientTransport, NostrClientTransportConfig}; -pub use server::{NostrServerTransport, NostrServerTransportConfig}; +pub use client::{ClientCorrelationStore, NostrClientTransport, NostrClientTransportConfig}; +pub use server::{NostrServerTransport, NostrServerTransportConfig, ServerEventRouteStore}; diff --git a/src/transport/server/correlation_store.rs b/src/transport/server/correlation_store.rs new file mode 100644 index 0000000..659c9d5 --- /dev/null +++ b/src/transport/server/correlation_store.rs @@ -0,0 +1,114 @@ +//! Server-side event route store for mapping event IDs to client public keys. + +use std::collections::HashMap; +use std::sync::Arc; + +use tokio::sync::RwLock; + +/// Maps event IDs to client public keys for response routing on the server side. +#[derive(Clone)] +pub struct ServerEventRouteStore { + event_to_client: Arc>>, +} + +impl Default for ServerEventRouteStore { + fn default() -> Self { + Self::new() + } +} + +impl ServerEventRouteStore { + pub fn new() -> Self { + Self { + event_to_client: Arc::new(RwLock::new(HashMap::new())), + } + } + + pub async fn register(&self, event_id: String, client_pubkey: String) { + self.event_to_client + .write() + .await + .insert(event_id, client_pubkey); + } + + /// Returns the client public key for the given event ID without removing it. + pub async fn get(&self, event_id: &str) -> Option { + self.event_to_client.read().await.get(event_id).cloned() + } + + /// Removes and returns the client public key for the given event ID. + pub async fn pop(&self, event_id: &str) -> Option { + self.event_to_client.write().await.remove(event_id) + } + + /// Removes all routes for a given client public key. + pub async fn remove_for_client(&self, client_pubkey: &str) { + self.event_to_client + .write() + .await + .retain(|_, v| v != client_pubkey); + } + + pub async fn clear(&self) { + self.event_to_client.write().await.clear(); + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[tokio::test] + async fn pop_on_empty_returns_none() { + let store = ServerEventRouteStore::new(); + assert!(store.pop("nonexistent").await.is_none()); + } + + #[tokio::test] + async fn get_returns_without_removing() { + let store = ServerEventRouteStore::new(); + store.register("e1".into(), "pk1".into()).await; + assert_eq!(store.get("e1").await.as_deref(), Some("pk1")); + assert_eq!(store.get("e1").await.as_deref(), Some("pk1")); + } + + #[tokio::test] + async fn pop_removes_entry() { + let store = ServerEventRouteStore::new(); + store.register("e1".into(), "pk1".into()).await; + assert_eq!(store.pop("e1").await.as_deref(), Some("pk1")); + assert!(store.pop("e1").await.is_none()); + } + + #[tokio::test] + async fn remove_for_client_only_removes_matching() { + let store = ServerEventRouteStore::new(); + store.register("e1".into(), "pk1".into()).await; + store.register("e2".into(), "pk2".into()).await; + store.register("e3".into(), "pk1".into()).await; + + store.remove_for_client("pk1").await; + + assert!(store.get("e1").await.is_none()); + assert!(store.get("e3").await.is_none()); + assert_eq!(store.get("e2").await.as_deref(), Some("pk2")); + } + + #[tokio::test] + async fn remove_for_client_noop_when_no_match() { + let store = ServerEventRouteStore::new(); + store.register("e1".into(), "pk1".into()).await; + store.remove_for_client("pk_other").await; + assert_eq!(store.get("e1").await.as_deref(), Some("pk1")); + } + + #[tokio::test] + async fn clear_empties_store() { + let store = ServerEventRouteStore::new(); + store.register("e1".into(), "pk1".into()).await; + store.register("e2".into(), "pk2".into()).await; + store.clear().await; + assert!(store.get("e1").await.is_none()); + assert!(store.get("e2").await.is_none()); + } +} diff --git a/src/transport/server.rs b/src/transport/server/mod.rs similarity index 94% rename from src/transport/server.rs rename to src/transport/server/mod.rs index 9a41c2c..88567d8 100644 --- a/src/transport/server.rs +++ b/src/transport/server/mod.rs @@ -4,6 +4,10 @@ //! sessions, handles request/response correlation, and optionally publishes //! server announcements. +pub mod correlation_store; + +pub use correlation_store::ServerEventRouteStore; + use std::collections::HashMap; use std::num::NonZeroUsize; use std::sync::{Arc, Mutex}; @@ -70,7 +74,7 @@ pub struct NostrServerTransport { /// Client sessions: client_pubkey_hex → ClientSession sessions: Arc>>, /// Reverse lookup: event_id → client_pubkey_hex - event_to_client: Arc>>, + event_routes: ServerEventRouteStore, /// Outer gift-wrap event IDs successfully decrypted and verified (inner `verify()`). /// Duplicate outer ids are skipped before decrypt; ids are inserted only after success /// so failed decrypt/verify can be retried on redelivery. @@ -130,7 +134,7 @@ impl NostrServerTransport { }, config, sessions: Arc::new(RwLock::new(HashMap::new())), - event_to_client: Arc::new(RwLock::new(HashMap::new())), + event_routes: ServerEventRouteStore::new(), seen_gift_wrap_ids, message_tx: tx, message_rx: Some(rx), @@ -181,7 +185,7 @@ impl NostrServerTransport { // Spawn event loop let relay_pool = Arc::clone(&self.base.relay_pool); let sessions = self.sessions.clone(); - let event_to_client = self.event_to_client.clone(); + let event_routes = self.event_routes.clone(); let tx = self.message_tx.clone(); let allowed = self.config.allowed_public_keys.clone(); let excluded = self.config.excluded_capabilities.clone(); @@ -192,7 +196,7 @@ impl NostrServerTransport { Self::event_loop( relay_pool, sessions, - event_to_client, + event_routes, tx, allowed, excluded, @@ -204,7 +208,7 @@ impl NostrServerTransport { // Spawn session cleanup let sessions_cleanup = self.sessions.clone(); - let event_to_client_cleanup = self.event_to_client.clone(); + let event_routes_cleanup = self.event_routes.clone(); let cleanup_interval = self.config.cleanup_interval; let session_timeout = self.config.session_timeout; @@ -214,7 +218,7 @@ impl NostrServerTransport { interval.tick().await; let cleaned = Self::cleanup_sessions( &sessions_cleanup, - &event_to_client_cleanup, + &event_routes_cleanup, session_timeout, ) .await; @@ -242,25 +246,20 @@ impl NostrServerTransport { pub async fn close(&mut self) -> Result<()> { self.base.disconnect().await?; self.sessions.write().await.clear(); - self.event_to_client.write().await.clear(); + self.event_routes.clear().await; Ok(()) } /// Send a response back to the client that sent the original request. pub async fn send_response(&self, event_id: &str, mut response: JsonRpcMessage) -> Result<()> { - let event_to_client = self.event_to_client.read().await; - let client_pubkey_hex = event_to_client - .get(event_id) - .ok_or_else(|| { - tracing::error!( - target: LOG_TARGET, - event_id = %event_id, - "No client found for response correlation" - ); - Error::Other(format!("No client found for event {event_id}")) - })? - .clone(); - drop(event_to_client); + let client_pubkey_hex = self.event_routes.get(event_id).await.ok_or_else(|| { + tracing::error!( + target: LOG_TARGET, + event_id = %event_id, + "No client found for response correlation" + ); + Error::Other(format!("No client found for event {event_id}")) + })?; let sessions = self.sessions.read().await; let session = sessions.get(&client_pubkey_hex).ok_or_else(|| { @@ -326,7 +325,9 @@ impl NostrServerTransport { error })?; - // Clean up + // Clean up only after successful send + self.event_routes.pop(event_id).await; + let mut sessions = self.sessions.write().await; if let Some(session) = sessions.get_mut(&client_pubkey_hex) { // Clean up progress token @@ -337,8 +338,6 @@ impl NostrServerTransport { } drop(sessions); - self.event_to_client.write().await.remove(event_id); - tracing::debug!( target: LOG_TARGET, client_pubkey = %client_pubkey_hex, @@ -602,7 +601,7 @@ impl NostrServerTransport { async fn event_loop( relay_pool: Arc, sessions: Arc>>, - event_to_client: Arc>>, + event_routes: ServerEventRouteStore, tx: tokio::sync::mpsc::UnboundedSender, allowed_pubkeys: Vec, excluded_capabilities: Vec, @@ -768,10 +767,9 @@ impl NostrServerTransport { session .pending_requests .insert(event_id.clone(), original_id); - event_to_client - .write() - .await - .insert(event_id.clone(), sender_pubkey.clone()); + event_routes + .register(event_id.clone(), sender_pubkey.clone()) + .await; // Track progress token if let Some(token) = req @@ -812,22 +810,17 @@ impl NostrServerTransport { async fn cleanup_sessions( sessions: &RwLock>, - event_to_client: &RwLock>, + event_routes: &ServerEventRouteStore, timeout: Duration, ) -> usize { let mut sessions_w = sessions.write().await; - let mut event_map = event_to_client.write().await; let mut cleaned = 0; + let mut stale_event_ids = Vec::new(); sessions_w.retain(|pubkey, session| { if session.last_activity.elapsed() > timeout { - // Clean up reverse mappings - for event_id in session.pending_requests.keys() { - event_map.remove(event_id); - } - for event_id in session.event_to_progress_token.keys() { - event_map.remove(event_id); - } + stale_event_ids.extend(session.pending_requests.keys().cloned()); + stale_event_ids.extend(session.event_to_progress_token.keys().cloned()); tracing::debug!( target: LOG_TARGET, client_pubkey = %pubkey, @@ -839,6 +832,11 @@ impl NostrServerTransport { true } }); + drop(sessions_w); + + for event_id in &stale_event_ids { + event_routes.pop(event_id).await; + } cleaned } @@ -872,7 +870,7 @@ mod tests { #[tokio::test] async fn test_cleanup_sessions_removes_expired() { let sessions = Arc::new(RwLock::new(HashMap::new())); - let event_to_client = Arc::new(RwLock::new(HashMap::new())); + let event_routes = ServerEventRouteStore::new(); // Insert a session with an old activity time let mut session = ClientSession::new(false); @@ -883,15 +881,14 @@ mod tests { .write() .await .insert("pubkey1".to_string(), session); - event_to_client - .write() - .await - .insert("evt1".to_string(), "pubkey1".to_string()); + event_routes + .register("evt1".to_string(), "pubkey1".to_string()) + .await; // With a long timeout, nothing should be cleaned let cleaned = NostrServerTransport::cleanup_sessions( &sessions, - &event_to_client, + &event_routes, Duration::from_secs(300), ) .await; @@ -902,26 +899,26 @@ mod tests { thread::sleep(Duration::from_millis(5)); let cleaned = NostrServerTransport::cleanup_sessions( &sessions, - &event_to_client, + &event_routes, Duration::from_millis(1), ) .await; assert_eq!(cleaned, 1); assert!(sessions.read().await.is_empty()); - assert!(event_to_client.read().await.is_empty()); + assert!(event_routes.pop("evt1").await.is_none()); } #[tokio::test] async fn test_cleanup_preserves_active_sessions() { let sessions = Arc::new(RwLock::new(HashMap::new())); - let event_to_client = Arc::new(RwLock::new(HashMap::new())); + let event_routes = ServerEventRouteStore::new(); let session = ClientSession::new(false); sessions.write().await.insert("active".to_string(), session); let cleaned = NostrServerTransport::cleanup_sessions( &sessions, - &event_to_client, + &event_routes, Duration::from_secs(300), ) .await; From 6bdc58684e2a1e97af8b7cbb1bd25f6692598cfb Mon Sep 17 00:00:00 2001 From: Kushagra Date: Thu, 23 Apr 2026 13:35:15 +0530 Subject: [PATCH 041/116] feat(cep-19): add GiftWrapMode type and ephemeral gift-wrap encryption Introduces core CEP-19 types and encryption support: - GiftWrapMode enum (Optional/Ephemeral/Persistent) with policy helpers allows_kind() and supports_ephemeral() - gift_wrap_single_layer_with_kind() for creating 1059 or 21059 wraps - Re-export GiftWrapMode from crate root CEP-19: https://github.com/ContextVM/ceps/pull/19 --- src/core/types.rs | 80 ++++++++++++++++++++++++++++++++ src/encryption/mod.rs | 103 ++++++++++++++++++++++++++++++++++++------ src/lib.rs | 5 +- 3 files changed, 171 insertions(+), 17 deletions(-) diff --git a/src/core/types.rs b/src/core/types.rs index a811269..4ef3dd7 100644 --- a/src/core/types.rs +++ b/src/core/types.rs @@ -4,6 +4,8 @@ use serde::{Deserialize, Serialize}; use std::collections::HashMap; use std::time::Instant; +use crate::core::constants::{EPHEMERAL_GIFT_WRAP_KIND, GIFT_WRAP_KIND}; + // ── Encryption mode ───────────────────────────────────────────────── /// Encryption mode for transport communication. @@ -22,6 +24,39 @@ pub enum EncryptionMode { Disabled, } +// Gift-wrap mode (CEP-19) + +// Gift-wrap policy for encrypted transport communication (CEP-19). +// Controls whether encrypted messages use persistent gift wraps (kind `1059`), +// ephemeral gift wraps (kind `21059`), or adapt based on peer support. +#[derive(Debug, Clone, Copy, Default, PartialEq, Eq, Serialize, Deserialize)] +#[serde(rename_all = "lowercase")] +pub enum GiftWrapMode { + /// Prefer persistent gift wraps until ephemeral support is explicitly chosen or learned. + #[default] + Optional, + /// Force the ephemeral gift-wrap kind (`21059`) for encrypted messages. + Ephemeral, + /// Force the persistent gift-wrap kind (`1059`) for encrypted messages. + Persistent, +} + +impl GiftWrapMode { + /// Returns whether this mode accepts the given encrypted outer event kind. + pub fn allows_kind(self, kind: u16) -> bool { + match self { + Self::Optional => kind == GIFT_WRAP_KIND || kind == EPHEMERAL_GIFT_WRAP_KIND, + Self::Ephemeral => kind == EPHEMERAL_GIFT_WRAP_KIND, + Self::Persistent => kind == GIFT_WRAP_KIND, + } + } + + /// Returns whether this mode supports sending and advertising ephemeral gift wraps. + pub fn supports_ephemeral(self) -> bool { + !matches!(self, Self::Persistent) + } +} + // ── Server info ───────────────────────────────────────────────────── /// Server information for announcements (kind 11316). @@ -226,6 +261,7 @@ pub struct CapabilityExclusion { #[cfg(test)] mod tests { use super::*; + use crate::core::constants::{EPHEMERAL_GIFT_WRAP_KIND, GIFT_WRAP_KIND}; use serde_json::json; use std::thread; use std::time::Duration; @@ -257,6 +293,50 @@ mod tests { assert_eq!(parsed, mode); } + #[test] + fn test_gift_wrap_mode_serde_roundtrip_optional() { + let mode = GiftWrapMode::Optional; + let s = serde_json::to_string(&mode).unwrap(); + assert_eq!(s, "\"optional\""); + let parsed: GiftWrapMode = serde_json::from_str(&s).unwrap(); + assert_eq!(parsed, mode); + } + + #[test] + fn test_gift_wrap_mode_serde_roundtrip_ephemeral() { + let mode = GiftWrapMode::Ephemeral; + let s = serde_json::to_string(&mode).unwrap(); + assert_eq!(s, "\"ephemeral\""); + let parsed: GiftWrapMode = serde_json::from_str(&s).unwrap(); + assert_eq!(parsed, mode); + } + + #[test] + fn test_gift_wrap_mode_serde_roundtrip_persistent() { + let mode = GiftWrapMode::Persistent; + let s = serde_json::to_string(&mode).unwrap(); + assert_eq!(s, "\"persistent\""); + let parsed: GiftWrapMode = serde_json::from_str(&s).unwrap(); + assert_eq!(parsed, mode); + } + + #[test] + fn test_gift_wrap_mode_policy_helpers() { + // Optional accepts both kinds + assert!(GiftWrapMode::Optional.allows_kind(GIFT_WRAP_KIND)); + assert!(GiftWrapMode::Optional.allows_kind(EPHEMERAL_GIFT_WRAP_KIND)); + // Ephemeral only accepts 21059 + assert!(GiftWrapMode::Ephemeral.allows_kind(EPHEMERAL_GIFT_WRAP_KIND)); + assert!(!GiftWrapMode::Ephemeral.allows_kind(GIFT_WRAP_KIND)); + // Persistent only accepts 1059 + assert!(GiftWrapMode::Persistent.allows_kind(GIFT_WRAP_KIND)); + assert!(!GiftWrapMode::Persistent.allows_kind(EPHEMERAL_GIFT_WRAP_KIND)); + // supports_ephemeral check + assert!(GiftWrapMode::Optional.supports_ephemeral()); + assert!(GiftWrapMode::Ephemeral.supports_ephemeral()); + assert!(!GiftWrapMode::Persistent.supports_ephemeral()); + } + fn assert_json_rpc_roundtrip(msg: &JsonRpcMessage) { let wire = serde_json::to_string(msg).unwrap(); let parsed: JsonRpcMessage = serde_json::from_str(&wire).unwrap(); diff --git a/src/encryption/mod.rs b/src/encryption/mod.rs index 20a5362..6a6d4bc 100644 --- a/src/encryption/mod.rs +++ b/src/encryption/mod.rs @@ -3,7 +3,7 @@ //! Provides NIP-44 encryption/decryption and NIP-59 gift wrapping. //! The actual gift wrapping is done via nostr-sdk's Client for full NIP-59 compliance. -use crate::core::constants::GIFT_WRAP_KIND; +use crate::core::constants::{EPHEMERAL_GIFT_WRAP_KIND, GIFT_WRAP_KIND}; use crate::core::error::{Error, Result}; use nostr_sdk::prelude::*; @@ -37,12 +37,8 @@ where .map_err(|e| Error::Decryption(e.to_string())) } -/// Decrypt a single-layer NIP-44 gift wrap (kind 1059). -/// -/// This matches the ContextVM JS/TS SDK's encryption scheme: -/// - The gift wrap event has NIP-44 encrypted content (single layer) -/// - Decrypt using recipient's key + event's pubkey (ephemeral sender) -/// - Returns the decrypted plaintext content string +// Decrypt a single-layer NIP-44 gift wrap (kind 1059). + pub async fn decrypt_gift_wrap_single_layer(signer: &T, event: &Event) -> Result where T: NostrSigner, @@ -51,13 +47,8 @@ where decrypt_nip44(signer, &sender_pubkey, &event.content).await } -/// Create a single-layer NIP-44 gift wrap (kind 1059). -/// -/// Matches the ContextVM JS/TS SDK's `encryptMessage`: -/// 1. Generate ephemeral keypair -/// 2. NIP-44 encrypt plaintext using ephemeral_secret + recipient_pubkey -/// 3. Build kind 1059 event with `p` tag pointing to recipient -/// 4. Sign with ephemeral key +// Create a single-layer NIP-44 gift wrap (kind 1059). + pub async fn gift_wrap_single_layer( _signer: &T, recipient: &PublicKey, @@ -78,6 +69,37 @@ where .map_err(|e| Error::Encryption(e.to_string())) } +/// Create a single-layer NIP-44 gift wrap using the provided outer event kind. +/// +/// Only ContextVM's supported persistent (`1059`) and ephemeral (`21059`) gift-wrap +/// kinds are accepted here. +pub async fn gift_wrap_single_layer_with_kind( + _signer: &T, + recipient: &PublicKey, + plaintext: &str, + gift_wrap_kind: u16, +) -> Result +where + T: NostrSigner, +{ + if gift_wrap_kind != GIFT_WRAP_KIND && gift_wrap_kind != EPHEMERAL_GIFT_WRAP_KIND { + return Err(Error::Encryption(format!( + "Unsupported gift-wrap kind for single-layer encryption: {gift_wrap_kind}" + ))); + } + + let ephemeral = Keys::generate(); + + let encrypted = encrypt_nip44(&ephemeral, recipient, plaintext).await?; + + let builder = + EventBuilder::new(Kind::Custom(gift_wrap_kind), encrypted).tag(Tag::public_key(*recipient)); + + builder + .sign_with_keys(&ephemeral) + .map_err(|e| Error::Encryption(e.to_string())) +} + // Legacy NIP-59 functions kept for reference but deprecated. /// Decrypt a full NIP-59 gift-wrapped event using the Client. @@ -111,7 +133,7 @@ pub async fn gift_wrap( #[cfg(test)] mod tests { - use crate::core::constants::GIFT_WRAP_KIND; + use crate::core::constants::{EPHEMERAL_GIFT_WRAP_KIND, GIFT_WRAP_KIND}; use super::*; @@ -299,4 +321,55 @@ mod tests { "forged inner event must fail signature verification" ); } + + #[tokio::test] + async fn test_ephemeral_gift_wrap_roundtrip_single_layer() { + let sender_keys = Keys::generate(); + let recipient_keys = Keys::generate(); + + let mcp_content = r#"{"jsonrpc":"2.0","id":1,"method":"tools/list"}"#; + let inner_event = EventBuilder::new(Kind::Custom(25910), mcp_content) + .tag(Tag::public_key(recipient_keys.public_key())) + .sign_with_keys(&sender_keys) + .unwrap(); + let inner_json = serde_json::to_string(&inner_event).unwrap(); + + let gift_wrap_event = gift_wrap_single_layer_with_kind( + &sender_keys, + &recipient_keys.public_key(), + &inner_json, + EPHEMERAL_GIFT_WRAP_KIND, + ) + .await + .unwrap(); + + assert_eq!(gift_wrap_event.kind, Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND)); + + let decrypted = decrypt_gift_wrap_single_layer(&recipient_keys, &gift_wrap_event) + .await + .unwrap(); + let parsed: Event = serde_json::from_str(&decrypted).unwrap(); + assert_eq!(parsed.pubkey, sender_keys.public_key()); + assert_eq!(parsed.content, mcp_content); + } + + #[tokio::test] + async fn test_invalid_gift_wrap_kind_rejected() { + let sender_keys = Keys::generate(); + let recipient_keys = Keys::generate(); + + let error = gift_wrap_single_layer_with_kind( + &sender_keys, + &recipient_keys.public_key(), + "test", + 4242, + ) + .await + .unwrap_err(); + + assert!( + error.to_string().contains("Unsupported gift-wrap kind"), + "unexpected error: {error}" + ); + } } diff --git a/src/lib.rs b/src/lib.rs index 2157224..f53c957 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -52,8 +52,9 @@ mod util; // Re-export commonly used types pub use core::error::{Error, Result}; pub use core::types::{ - CapabilityExclusion, ClientSession, EncryptionMode, JsonRpcError, JsonRpcErrorResponse, - JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, ServerInfo, + CapabilityExclusion, ClientSession, EncryptionMode, GiftWrapMode, JsonRpcError, + JsonRpcErrorResponse, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, + ServerInfo, }; pub use discovery::ServerAnnouncement; pub use relay::RelayPool; From eeb4e366c358c7ce4e9786312abdb3ba22ce8ff4 Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 23 Apr 2026 04:41:14 +0530 Subject: [PATCH 042/116] test: add Phase 3 integration tests using MockRelayPool --- src/lib.rs | 3 +- src/relay/mock.rs | 30 ++ src/transport/client/mod.rs | 44 +++ src/transport/server/mod.rs | 34 ++ tests/transport_integration.rs | 603 +++++++++++++++++++++++++++++++++ 5 files changed, 713 insertions(+), 1 deletion(-) create mode 100644 tests/transport_integration.rs diff --git a/src/lib.rs b/src/lib.rs index 80f5945..4172347 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -56,7 +56,8 @@ pub use core::types::{ JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, ServerInfo, }; pub use discovery::ServerAnnouncement; -pub use relay::RelayPool; +pub use relay::mock::MockRelayPool; +pub use relay::{RelayPool, RelayPoolTrait}; pub use transport::client::{ ClientCorrelationStore, NostrClientTransport, NostrClientTransportConfig, }; diff --git a/src/relay/mock.rs b/src/relay/mock.rs index 53039b2..52e52bc 100644 --- a/src/relay/mock.rs +++ b/src/relay/mock.rs @@ -70,6 +70,36 @@ impl MockRelayPool { self.keys.public_key() } + /// Like [`new`](Self::new) but with caller-provided signing keys. + pub fn with_keys(keys: Keys) -> Self { + let (tx, _rx) = tokio::sync::broadcast::channel(1024); + Self { + inner: Arc::new(Mutex::new(MockRelayInner::new())), + notification_tx: tx, + keys, + } + } + + /// Create a pair of linked mock relay pools with different signing keys. + /// + /// Both pools share the same event store and notification channel; events + /// published by one are visible to the other's `notifications()` receivers. + pub fn create_pair() -> (Self, Self) { + let (tx, _rx) = tokio::sync::broadcast::channel(1024); + let inner = Arc::new(Mutex::new(MockRelayInner::new())); + let a = Self { + inner: Arc::clone(&inner), + notification_tx: tx.clone(), + keys: Keys::generate(), + }; + let b = Self { + inner, + notification_tx: tx, + keys: Keys::generate(), + }; + (a, b) + } + /// Clone of all events published so far (useful for assertions in tests). pub async fn stored_events(&self) -> Vec { self.inner.lock().await.events.clone() diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index cdd3e5b..955e8fc 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -126,6 +126,50 @@ impl NostrClientTransport { }) } + /// Like [`new`](Self::new) but accepts an existing relay pool. + pub async fn with_relay_pool( + config: NostrClientTransportConfig, + relay_pool: Arc, + ) -> Result { + tracing_setup::init_tracer(config.log_file_path.as_deref())?; + + let server_pubkey = PublicKey::from_hex(&config.server_pubkey).map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + server_pubkey = %config.server_pubkey, + "Invalid server pubkey" + ); + Error::Other(format!("Invalid server pubkey: {error}")) + })?; + + let (tx, rx) = tokio::sync::mpsc::unbounded_channel(); + let seen_gift_wrap_ids = Arc::new(Mutex::new(LruCache::new( + NonZeroUsize::new(DEFAULT_LRU_SIZE).expect("DEFAULT_LRU_SIZE must be non-zero"), + ))); + + tracing::info!( + target: LOG_TARGET, + relay_count = config.relay_urls.len(), + stateless = config.is_stateless, + encryption_mode = ?config.encryption_mode, + "Created client transport (with_relay_pool)" + ); + Ok(Self { + base: BaseTransport { + relay_pool, + encryption_mode: config.encryption_mode, + is_connected: false, + }, + config, + server_pubkey, + pending_requests: ClientCorrelationStore::new(), + seen_gift_wrap_ids, + message_tx: tx, + message_rx: Some(rx), + }) + } + /// Connect and start listening for responses. pub async fn start(&mut self) -> Result<()> { self.base diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 88567d8..7781557 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -141,6 +141,40 @@ impl NostrServerTransport { }) } + /// Like [`new`](Self::new) but accepts an existing relay pool. + pub async fn with_relay_pool( + config: NostrServerTransportConfig, + relay_pool: Arc, + ) -> Result { + tracing_setup::init_tracer(config.log_file_path.as_deref())?; + + let (tx, rx) = tokio::sync::mpsc::unbounded_channel(); + let seen_gift_wrap_ids = Arc::new(Mutex::new(LruCache::new( + NonZeroUsize::new(DEFAULT_LRU_SIZE).expect("DEFAULT_LRU_SIZE must be non-zero"), + ))); + + tracing::info!( + target: LOG_TARGET, + relay_count = config.relay_urls.len(), + announced = config.is_announced_server, + encryption_mode = ?config.encryption_mode, + "Created server transport (with_relay_pool)" + ); + Ok(Self { + base: BaseTransport { + relay_pool, + encryption_mode: config.encryption_mode, + is_connected: false, + }, + config, + sessions: Arc::new(RwLock::new(HashMap::new())), + event_routes: ServerEventRouteStore::new(), + seen_gift_wrap_ids, + message_tx: tx, + message_rx: Some(rx), + }) + } + /// Start listening for incoming requests. pub async fn start(&mut self) -> Result<()> { self.base diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs new file mode 100644 index 0000000..c577b79 --- /dev/null +++ b/tests/transport_integration.rs @@ -0,0 +1,603 @@ +//! Integration tests — transport-level flows using MockRelayPool. +//! +//! Each test wires client and/or server transports to an in-memory mock relay +//! network so that the full event-loop logic (subscription, publish, routing, +//! encryption-mode enforcement, and authorization) is exercised without +//! connecting to real relays. + +use std::sync::Arc; +use std::time::Duration; + +use contextvm_sdk::core::constants::{ + mcp_protocol_version, GIFT_WRAP_KIND, SERVER_ANNOUNCEMENT_KIND, +}; +use contextvm_sdk::core::types::EncryptionMode; +use contextvm_sdk::relay::mock::MockRelayPool; +use contextvm_sdk::transport::client::{NostrClientTransport, NostrClientTransportConfig}; +use contextvm_sdk::transport::server::{NostrServerTransport, NostrServerTransportConfig}; +use contextvm_sdk::{ + JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, RelayPoolTrait, + ServerInfo, +}; +use nostr_sdk::prelude::*; + +fn as_pool(pool: MockRelayPool) -> Arc { + Arc::new(pool) +} + +/// Let spawned event loops call `notifications()` before we publish anything. +/// Without this, broadcast messages can be lost on slow CI runners. +async fn let_event_loops_start() { + tokio::time::sleep(Duration::from_millis(10)).await; +} + +// ── 1. Full initialization handshake ──────────────────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn full_initialization_handshake() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + let mut client_rx = client + .take_message_receiver() + .expect("client message receiver"); + + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Client sends initialize request. + let init_request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: Some(serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "capabilities": {}, + "clientInfo": { "name": "test-client", "version": "0.0.0" } + })), + }); + client + .send(&init_request) + .await + .expect("client send initialize"); + + // Server should receive the initialize request. + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout waiting for server to receive init request") + .expect("server channel closed"); + + assert_eq!( + incoming.message.method(), + Some("initialize"), + "server must receive initialize request" + ); + + // Server sends initialize response. + let init_response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + result: serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "serverInfo": { "name": "test-server", "version": "0.0.0" }, + "capabilities": {} + }), + }); + server + .send_response(&incoming.event_id, init_response) + .await + .expect("server send response"); + + // Client should receive the initialize response. + let response = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .expect("timeout waiting for client to receive init response") + .expect("client channel closed"); + + assert!(response.is_response(), "client must receive a response"); + assert_eq!(response.id(), Some(&serde_json::json!(1))); +} + +// ── 2. Server announcement publishing ─────────────────────────────────────── + +#[tokio::test] +async fn server_announcement_publishing() { + let pool = Arc::new(MockRelayPool::new()); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + is_announced_server: true, + server_info: Some(ServerInfo { + name: Some("Phase3-Test-Server".to_string()), + ..Default::default() + }), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + Arc::clone(&pool) as Arc, + ) + .await + .expect("create server transport"); + + server.start().await.expect("server start"); + server.announce().await.expect("server announce"); + + let events = pool.stored_events().await; + let announcement = events + .iter() + .find(|e| e.kind == Kind::Custom(SERVER_ANNOUNCEMENT_KIND)); + + assert!( + announcement.is_some(), + "kind {} event must be published after announce()", + SERVER_ANNOUNCEMENT_KIND + ); + + let ann = announcement.unwrap(); + let content: serde_json::Value = + serde_json::from_str(&ann.content).expect("announcement content must be JSON"); + assert_eq!( + content["name"], "Phase3-Test-Server", + "announcement content must include server name" + ); +} + +// ── 3. Encryption mode Optional accepts plaintext ─────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn encryption_mode_optional_accepts_plaintext() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + // Server uses Optional — should accept both encrypted and plaintext. + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Optional, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + server.start().await.expect("server start"); + + // Client uses Disabled — sends plaintext kind 25910. + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + client.start().await.expect("client start"); + let_event_loops_start().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("plain-1"), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send plaintext request"); + + // Server must receive and process the plaintext message. + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout waiting for server to receive plaintext request") + .expect("server channel closed"); + + assert_eq!( + incoming.message.method(), + Some("tools/list"), + "Optional-mode server must accept plaintext kind 25910" + ); + assert!( + !incoming.is_encrypted, + "plaintext request must not be marked as encrypted" + ); +} + +// ── 4. Auth allowlist blocks disallowed pubkey ────────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn auth_allowlist_blocks_disallowed_pubkey() { + let allowed_keys = Keys::generate(); // a DIFFERENT pubkey + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + // Server allows only `allowed_keys` — client_keys is NOT allowed. + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + allowed_public_keys: vec![allowed_keys.public_key().to_hex()], + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + server.start().await.expect("server start"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Send a non-initialize request (those are always allowed). + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(42), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send request"); + + // The server should NOT forward the request (pubkey is disallowed). + let result = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()).await; + assert!( + result.is_err(), + "disallowed pubkey request must not reach the server handler" + ); +} + +// ── 5. Encryption mode Required drops plaintext ───────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn encryption_mode_required_drops_plaintext() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + // Server requires encryption — plaintext must be dropped. + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Required, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + server.start().await.expect("server start"); + + // Client sends plaintext (Disabled mode). + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + client.start().await.expect("client start"); + let_event_loops_start().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("drop-me"), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send plaintext request"); + + // Server must NOT receive the plaintext message. + let result = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()).await; + assert!( + result.is_err(), + "Required-mode server must drop plaintext kind 25910 events" + ); +} + +// ── 6. Encrypted gift-wrap roundtrip ──────────────────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn encrypted_gift_wrap_roundtrip() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Required, + ..Default::default() + }, + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Required, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + let mut client_rx = client + .take_message_receiver() + .expect("client message receiver"); + + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Client sends encrypted request. + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("enc-1"), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send encrypted request"); + + // Verify the published event is a gift-wrap (kind 1059). + let events = server_pool.stored_events().await; + assert!( + events + .iter() + .any(|e| e.kind == Kind::Custom(GIFT_WRAP_KIND)), + "client must publish a kind 1059 gift-wrap event" + ); + + // Server should decrypt and receive the request. + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout waiting for server to decrypt gift-wrap request") + .expect("server channel closed"); + + assert_eq!(incoming.message.method(), Some("tools/list")); + assert!(incoming.is_encrypted, "message must be marked encrypted"); + + // Server sends an encrypted response back. + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("enc-1"), + result: serde_json::json!({ "tools": [] }), + }); + server + .send_response(&incoming.event_id, response) + .await + .expect("server send encrypted response"); + + // Client should decrypt and receive the response. + let client_msg = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .expect("timeout waiting for client to decrypt gift-wrap response") + .expect("client channel closed"); + + assert!(client_msg.is_response()); + assert_eq!(client_msg.id(), Some(&serde_json::json!("enc-1"))); +} + +// ── 7. Gift-wrap dedup skips duplicate delivery ───────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn gift_wrap_dedup_skips_duplicate_delivery() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Required, + ..Default::default() + }, + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Required, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Client sends a gift-wrapped request. + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("dedup-1"), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send request"); + + // Server receives the first delivery. + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout waiting for first delivery") + .expect("server channel closed"); + assert_eq!(incoming.message.method(), Some("tools/list")); + assert!(incoming.is_encrypted); + + // Re-deliver the same gift-wrap event (simulates relay redelivery). + let events = server_pool.stored_events().await; + let gift_wrap = events + .iter() + .find(|e| e.kind == Kind::Custom(GIFT_WRAP_KIND)) + .expect("gift-wrap event must exist") + .clone(); + server_pool + .publish_event(&gift_wrap) + .await + .expect("re-inject duplicate"); + + // Server must NOT process the duplicate. + let result = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()).await; + assert!( + result.is_err(), + "duplicate gift-wrap (same outer event id) must be skipped" + ); +} + +// ── 8. Correlated notification has e tag ───────────────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn correlated_notification_has_e_tag() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + let mut client_rx = client + .take_message_receiver() + .expect("client message receiver"); + + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Client sends a tools/list request. + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("notif-corr"), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send request"); + + // Server receives the request and captures the event_id. + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout waiting for server to receive request") + .expect("server channel closed"); + assert_eq!(incoming.message.method(), Some("tools/list")); + let request_event_id = incoming.event_id.clone(); + + // Server sends a correlated notifications/progress notification. + let notification = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: Some(serde_json::json!({ + "progressToken": "tok-1", + "progress": 50, + "total": 100 + })), + }); + server + .send_notification( + &incoming.client_pubkey, + ¬ification, + Some(&request_event_id), + ) + .await + .expect("send correlated notification"); + + // Client should receive the notification. + let client_msg = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .expect("timeout waiting for client to receive notification") + .expect("client channel closed"); + + assert!(client_msg.is_notification()); + assert_eq!(client_msg.method(), Some("notifications/progress")); + + // The published notification event must carry an e tag referencing the request. + let events = server_pool.stored_events().await; + let notif_event = events + .iter() + .find(|e| e.pubkey == server_pubkey && e.content.contains("notifications/progress")) + .expect("notification event must be in stored events"); + + let e_tag = contextvm_sdk::core::serializers::get_tag_value(¬if_event.tags, "e"); + assert_eq!( + e_tag.as_deref(), + Some(request_event_id.as_str()), + "notification event must have e tag referencing the original request event id" + ); +} From 3dfc682242fd0459df0e89132c92344d02cd084d Mon Sep 17 00:00:00 2001 From: Harsh Date: Fri, 24 Apr 2026 06:25:23 +0530 Subject: [PATCH 043/116] refactor: enrich correlation stores, add SessionStore, and port Phase 1/2 conformance tests --- src/lib.rs | 3 +- src/transport/client/correlation_store.rs | 47 +- src/transport/client/mod.rs | 6 +- src/transport/server/correlation_store.rs | 229 ++++++- src/transport/server/mod.rs | 73 ++- src/transport/server/session_store.rs | 204 ++++++ tests/conformance_stores.rs | 725 ++++++++++++++++++++++ 7 files changed, 1209 insertions(+), 78 deletions(-) create mode 100644 src/transport/server/session_store.rs create mode 100644 tests/conformance_stores.rs diff --git a/src/lib.rs b/src/lib.rs index 5671c22..828439f 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -63,7 +63,8 @@ pub use transport::client::{ ClientCorrelationStore, NostrClientTransport, NostrClientTransportConfig, }; pub use transport::server::{ - IncomingRequest, NostrServerTransport, NostrServerTransportConfig, ServerEventRouteStore, + IncomingRequest, NostrServerTransport, NostrServerTransportConfig, RouteEntry, + ServerEventRouteStore, SessionSnapshot, SessionStore, }; #[cfg(feature = "rmcp")] diff --git a/src/transport/client/correlation_store.rs b/src/transport/client/correlation_store.rs index e080fa5..140f664 100644 --- a/src/transport/client/correlation_store.rs +++ b/src/transport/client/correlation_store.rs @@ -1,14 +1,14 @@ //! Client-side correlation store for tracking pending request event IDs. -use std::collections::HashSet; +use std::collections::HashMap; use std::sync::Arc; use tokio::sync::RwLock; -/// Tracks pending request event IDs awaiting responses on the client side. +/// Tracks pending request event IDs and their original request IDs on the client side. #[derive(Clone)] pub struct ClientCorrelationStore { - pending_requests: Arc>>, + pending_requests: Arc>>, } impl Default for ClientCorrelationStore { @@ -20,20 +20,39 @@ impl Default for ClientCorrelationStore { impl ClientCorrelationStore { pub fn new() -> Self { Self { - pending_requests: Arc::new(RwLock::new(HashSet::new())), + pending_requests: Arc::new(RwLock::new(HashMap::new())), } } - pub async fn register(&self, event_id: String) { - self.pending_requests.write().await.insert(event_id); + /// Register a pending request with its original JSON-RPC request ID. + pub async fn register(&self, event_id: String, original_id: serde_json::Value) { + self.pending_requests + .write() + .await + .insert(event_id, original_id); } pub async fn contains(&self, event_id: &str) -> bool { - self.pending_requests.read().await.contains(event_id) + self.pending_requests.read().await.contains_key(event_id) } - pub async fn remove(&self, event_id: &str) { - self.pending_requests.write().await.remove(event_id); + /// Remove a pending request. Returns `true` if the key existed. + pub async fn remove(&self, event_id: &str) -> bool { + self.pending_requests + .write() + .await + .remove(event_id) + .is_some() + } + + /// Retrieve the original request ID for a given event ID without removing it. + pub async fn get_original_id(&self, event_id: &str) -> Option { + self.pending_requests.read().await.get(event_id).cloned() + } + + /// Number of pending requests currently tracked. + pub async fn count(&self) -> usize { + self.pending_requests.read().await.len() } pub async fn clear(&self) { @@ -48,15 +67,15 @@ mod tests { #[tokio::test] async fn remove_nonexistent_is_noop() { let store = ClientCorrelationStore::new(); - store.remove("nonexistent").await; + assert!(!store.remove("nonexistent").await); assert!(!store.contains("nonexistent").await); } #[tokio::test] async fn contains_after_clear() { let store = ClientCorrelationStore::new(); - store.register("e1".into()).await; - store.register("e2".into()).await; + store.register("e1".into(), serde_json::Value::Null).await; + store.register("e2".into(), serde_json::Value::Null).await; assert!(store.contains("e1").await); store.clear().await; assert!(!store.contains("e1").await); @@ -66,9 +85,9 @@ mod tests { #[tokio::test] async fn register_and_remove_roundtrip() { let store = ClientCorrelationStore::new(); - store.register("e1".into()).await; + store.register("e1".into(), serde_json::Value::Null).await; assert!(store.contains("e1").await); - store.remove("e1").await; + assert!(store.remove("e1").await); assert!(!store.contains("e1").await); } } diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index 955e8fc..d7f2c2b 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -283,8 +283,10 @@ impl NostrClientTransport { error })?; - if matches!(message, JsonRpcMessage::Request(_)) { - self.pending_requests.register(event_id.to_hex()).await; + if let JsonRpcMessage::Request(ref req) = message { + self.pending_requests + .register(event_id.to_hex(), req.id.clone()) + .await; } tracing::debug!( diff --git a/src/transport/server/correlation_store.rs b/src/transport/server/correlation_store.rs index 659c9d5..1879d80 100644 --- a/src/transport/server/correlation_store.rs +++ b/src/transport/server/correlation_store.rs @@ -1,14 +1,65 @@ -//! Server-side event route store for mapping event IDs to client public keys. +//! Server-side event route store for mapping event IDs to client routes. -use std::collections::HashMap; +use std::collections::{HashMap, HashSet}; use std::sync::Arc; use tokio::sync::RwLock; -/// Maps event IDs to client public keys for response routing on the server side. +/// A route entry for an in-flight request. +#[derive(Debug, Clone)] +pub struct RouteEntry { + /// The client's public key that originated this request. + pub client_pubkey: String, + /// The original JSON-RPC request ID (before replacement with event ID). + pub original_request_id: serde_json::Value, + /// Optional progress token for this request. + pub progress_token: Option, +} + +/// Internal state behind the lock. +struct Inner { + /// Primary index: event_id → route entry. + routes: HashMap, + /// Secondary index: progress_token → event_id. + progress_token_to_event: HashMap, + /// Secondary index: client_pubkey → set of event_ids. + client_event_ids: HashMap>, +} + +impl Inner { + fn new() -> Self { + Self { + routes: HashMap::new(), + progress_token_to_event: HashMap::new(), + client_event_ids: HashMap::new(), + } + } + + /// Remove a single route and clean up all secondary indexes. + fn remove_route(&mut self, event_id: &str) -> Option { + let route = self.routes.remove(event_id)?; + + // Clean up progress token index. + if let Some(ref token) = route.progress_token { + self.progress_token_to_event.remove(token); + } + + // Clean up client index. + if let Some(set) = self.client_event_ids.get_mut(&route.client_pubkey) { + set.remove(event_id); + if set.is_empty() { + self.client_event_ids.remove(&route.client_pubkey); + } + } + + Some(route) + } +} + +/// Maps event IDs to full route entries for response routing on the server side. #[derive(Clone)] pub struct ServerEventRouteStore { - event_to_client: Arc>>, + inner: Arc>, } impl Default for ServerEventRouteStore { @@ -20,43 +71,140 @@ impl Default for ServerEventRouteStore { impl ServerEventRouteStore { pub fn new() -> Self { Self { - event_to_client: Arc::new(RwLock::new(HashMap::new())), + inner: Arc::new(RwLock::new(Inner::new())), } } - pub async fn register(&self, event_id: String, client_pubkey: String) { - self.event_to_client - .write() - .await - .insert(event_id, client_pubkey); + /// Register a route for an incoming request. + pub async fn register( + &self, + event_id: String, + client_pubkey: String, + original_request_id: serde_json::Value, + progress_token: Option, + ) { + let mut inner = self.inner.write().await; + + // Update client index. + inner + .client_event_ids + .entry(client_pubkey.clone()) + .or_default() + .insert(event_id.clone()); + + // Update progress token index. + if let Some(ref token) = progress_token { + inner + .progress_token_to_event + .insert(token.clone(), event_id.clone()); + } + + inner.routes.insert( + event_id, + RouteEntry { + client_pubkey, + original_request_id, + progress_token, + }, + ); } /// Returns the client public key for the given event ID without removing it. pub async fn get(&self, event_id: &str) -> Option { - self.event_to_client.read().await.get(event_id).cloned() + self.inner + .read() + .await + .routes + .get(event_id) + .map(|r| r.client_pubkey.clone()) + } + + /// Returns the full route entry for the given event ID without removing it. + pub async fn get_route(&self, event_id: &str) -> Option { + self.inner.read().await.routes.get(event_id).cloned() + } + + /// Removes and returns the full route entry for the given event ID. + pub async fn pop(&self, event_id: &str) -> Option { + self.inner.write().await.remove_route(event_id) + } + + /// Removes all routes for a given client public key. Returns the count removed. + pub async fn remove_for_client(&self, client_pubkey: &str) -> usize { + let mut inner = self.inner.write().await; + + let event_ids = match inner.client_event_ids.remove(client_pubkey) { + Some(ids) => ids, + None => return 0, + }; + + let count = event_ids.len(); + for event_id in &event_ids { + if let Some(route) = inner.routes.remove(event_id.as_str()) { + if let Some(ref token) = route.progress_token { + inner.progress_token_to_event.remove(token); + } + } + } + count } - /// Removes and returns the client public key for the given event ID. - pub async fn pop(&self, event_id: &str) -> Option { - self.event_to_client.write().await.remove(event_id) + /// Check whether a route exists for the given event ID. + pub async fn has_event_route(&self, event_id: &str) -> bool { + self.inner.read().await.routes.contains_key(event_id) } - /// Removes all routes for a given client public key. - pub async fn remove_for_client(&self, client_pubkey: &str) { - self.event_to_client - .write() + /// Check whether the given client has any active routes. + pub async fn has_active_routes_for_client(&self, client_pubkey: &str) -> bool { + self.inner + .read() .await - .retain(|_, v| v != client_pubkey); + .client_event_ids + .get(client_pubkey) + .is_some_and(|set| !set.is_empty()) + } + + /// Look up the event ID associated with a progress token. + pub async fn get_event_id_by_progress_token(&self, token: &str) -> Option { + self.inner + .read() + .await + .progress_token_to_event + .get(token) + .cloned() + } + + /// Check whether a progress token mapping exists. + pub async fn has_progress_token(&self, token: &str) -> bool { + self.inner + .read() + .await + .progress_token_to_event + .contains_key(token) + } + + /// Number of event routes currently tracked. + pub async fn event_route_count(&self) -> usize { + self.inner.read().await.routes.len() + } + + /// Number of progress token mappings currently tracked. + pub async fn progress_token_count(&self) -> usize { + self.inner.read().await.progress_token_to_event.len() } pub async fn clear(&self) { - self.event_to_client.write().await.clear(); + let mut inner = self.inner.write().await; + inner.routes.clear(); + inner.progress_token_to_event.clear(); + inner.client_event_ids.clear(); } } #[cfg(test)] mod tests { use super::*; + use serde_json::json; #[tokio::test] async fn pop_on_empty_returns_none() { @@ -67,7 +215,9 @@ mod tests { #[tokio::test] async fn get_returns_without_removing() { let store = ServerEventRouteStore::new(); - store.register("e1".into(), "pk1".into()).await; + store + .register("e1".into(), "pk1".into(), json!("r1"), None) + .await; assert_eq!(store.get("e1").await.as_deref(), Some("pk1")); assert_eq!(store.get("e1").await.as_deref(), Some("pk1")); } @@ -75,19 +225,29 @@ mod tests { #[tokio::test] async fn pop_removes_entry() { let store = ServerEventRouteStore::new(); - store.register("e1".into(), "pk1".into()).await; - assert_eq!(store.pop("e1").await.as_deref(), Some("pk1")); + store + .register("e1".into(), "pk1".into(), json!("r1"), None) + .await; + let route = store.pop("e1").await.unwrap(); + assert_eq!(route.client_pubkey, "pk1"); assert!(store.pop("e1").await.is_none()); } #[tokio::test] async fn remove_for_client_only_removes_matching() { let store = ServerEventRouteStore::new(); - store.register("e1".into(), "pk1".into()).await; - store.register("e2".into(), "pk2".into()).await; - store.register("e3".into(), "pk1".into()).await; + store + .register("e1".into(), "pk1".into(), json!("r1"), None) + .await; + store + .register("e2".into(), "pk2".into(), json!("r2"), None) + .await; + store + .register("e3".into(), "pk1".into(), json!("r3"), None) + .await; - store.remove_for_client("pk1").await; + let removed = store.remove_for_client("pk1").await; + assert_eq!(removed, 2); assert!(store.get("e1").await.is_none()); assert!(store.get("e3").await.is_none()); @@ -97,16 +257,23 @@ mod tests { #[tokio::test] async fn remove_for_client_noop_when_no_match() { let store = ServerEventRouteStore::new(); - store.register("e1".into(), "pk1".into()).await; - store.remove_for_client("pk_other").await; + store + .register("e1".into(), "pk1".into(), json!("r1"), None) + .await; + let removed = store.remove_for_client("pk_other").await; + assert_eq!(removed, 0); assert_eq!(store.get("e1").await.as_deref(), Some("pk1")); } #[tokio::test] async fn clear_empties_store() { let store = ServerEventRouteStore::new(); - store.register("e1".into(), "pk1".into()).await; - store.register("e2".into(), "pk2".into()).await; + store + .register("e1".into(), "pk1".into(), json!("r1"), None) + .await; + store + .register("e2".into(), "pk2".into(), json!("r2"), None) + .await; store.clear().await; assert!(store.get("e1").await.is_none()); assert!(store.get("e2").await.is_none()); diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 7781557..6105520 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -5,17 +5,17 @@ //! server announcements. pub mod correlation_store; +pub mod session_store; -pub use correlation_store::ServerEventRouteStore; +pub use correlation_store::{RouteEntry, ServerEventRouteStore}; +pub use session_store::{SessionSnapshot, SessionStore}; -use std::collections::HashMap; use std::num::NonZeroUsize; use std::sync::{Arc, Mutex}; use std::time::Duration; use lru::LruCache; use nostr_sdk::prelude::*; -use tokio::sync::RwLock; use crate::core::constants::*; use crate::core::error::{Error, Result}; @@ -71,9 +71,9 @@ impl Default for NostrServerTransportConfig { pub struct NostrServerTransport { base: BaseTransport, config: NostrServerTransportConfig, - /// Client sessions: client_pubkey_hex → ClientSession - sessions: Arc>>, - /// Reverse lookup: event_id → client_pubkey_hex + /// Client sessions. + sessions: SessionStore, + /// Reverse lookup: event_id → client route. event_routes: ServerEventRouteStore, /// Outer gift-wrap event IDs successfully decrypted and verified (inner `verify()`). /// Duplicate outer ids are skipped before decrypt; ids are inserted only after success @@ -133,7 +133,7 @@ impl NostrServerTransport { is_connected: false, }, config, - sessions: Arc::new(RwLock::new(HashMap::new())), + sessions: SessionStore::new(), event_routes: ServerEventRouteStore::new(), seen_gift_wrap_ids, message_tx: tx, @@ -167,7 +167,7 @@ impl NostrServerTransport { is_connected: false, }, config, - sessions: Arc::new(RwLock::new(HashMap::new())), + sessions: SessionStore::new(), event_routes: ServerEventRouteStore::new(), seen_gift_wrap_ids, message_tx: tx, @@ -279,7 +279,7 @@ impl NostrServerTransport { /// Close the transport. pub async fn close(&mut self) -> Result<()> { self.base.disconnect().await?; - self.sessions.write().await.clear(); + self.sessions.clear().await; self.event_routes.clear().await; Ok(()) } @@ -634,7 +634,7 @@ impl NostrServerTransport { #[allow(clippy::too_many_arguments)] async fn event_loop( relay_pool: Arc, - sessions: Arc>>, + sessions: SessionStore, event_routes: ServerEventRouteStore, tx: tokio::sync::mpsc::UnboundedSender, allowed_pubkeys: Vec, @@ -798,28 +798,37 @@ impl NostrServerTransport { // Track request for correlation if let JsonRpcMessage::Request(ref req) = mcp_msg { let original_id = req.id.clone(); - session - .pending_requests - .insert(event_id.clone(), original_id); - event_routes - .register(event_id.clone(), sender_pubkey.clone()) - .await; - // Track progress token - if let Some(token) = req + // Extract progress token from _meta if present. + let progress_token = req .params .as_ref() .and_then(|p| p.get("_meta")) .and_then(|m| m.get("progressToken")) .and_then(|t| t.as_str()) - { + .map(String::from); + + // Duplicate into session fields (kept for backward compat). + session + .pending_requests + .insert(event_id.clone(), original_id.clone()); + if let Some(ref token) = progress_token { session .pending_requests - .insert(token.to_string(), serde_json::json!(event_id)); + .insert(token.clone(), serde_json::json!(event_id)); session .event_to_progress_token - .insert(event_id.clone(), token.to_string()); + .insert(event_id.clone(), token.clone()); } + + event_routes + .register( + event_id.clone(), + sender_pubkey.clone(), + original_id, + progress_token, + ) + .await; } // Handle initialized notification @@ -843,7 +852,7 @@ impl NostrServerTransport { } async fn cleanup_sessions( - sessions: &RwLock>, + sessions: &SessionStore, event_routes: &ServerEventRouteStore, timeout: Duration, ) -> usize { @@ -903,7 +912,7 @@ mod tests { #[tokio::test] async fn test_cleanup_sessions_removes_expired() { - let sessions = Arc::new(RwLock::new(HashMap::new())); + let sessions = SessionStore::new(); let event_routes = ServerEventRouteStore::new(); // Insert a session with an old activity time @@ -916,7 +925,12 @@ mod tests { .await .insert("pubkey1".to_string(), session); event_routes - .register("evt1".to_string(), "pubkey1".to_string()) + .register( + "evt1".to_string(), + "pubkey1".to_string(), + serde_json::json!(1), + None, + ) .await; // With a long timeout, nothing should be cleaned @@ -927,7 +941,7 @@ mod tests { ) .await; assert_eq!(cleaned, 0); - assert_eq!(sessions.read().await.len(), 1); + assert_eq!(sessions.session_count().await, 1); // With zero timeout, it should be cleaned thread::sleep(Duration::from_millis(5)); @@ -938,17 +952,16 @@ mod tests { ) .await; assert_eq!(cleaned, 1); - assert!(sessions.read().await.is_empty()); + assert_eq!(sessions.session_count().await, 0); assert!(event_routes.pop("evt1").await.is_none()); } #[tokio::test] async fn test_cleanup_preserves_active_sessions() { - let sessions = Arc::new(RwLock::new(HashMap::new())); + let sessions = SessionStore::new(); let event_routes = ServerEventRouteStore::new(); - let session = ClientSession::new(false); - sessions.write().await.insert("active".to_string(), session); + sessions.get_or_create_session("active", false).await; let cleaned = NostrServerTransport::cleanup_sessions( &sessions, @@ -957,7 +970,7 @@ mod tests { ) .await; assert_eq!(cleaned, 0); - assert_eq!(sessions.read().await.len(), 1); + assert_eq!(sessions.session_count().await, 1); } // ── Request ID correlation ────────────────────────────────── diff --git a/src/transport/server/session_store.rs b/src/transport/server/session_store.rs new file mode 100644 index 0000000..3361a9b --- /dev/null +++ b/src/transport/server/session_store.rs @@ -0,0 +1,204 @@ +//! Server-side session store for managing client sessions. + +use std::collections::HashMap; +use std::sync::Arc; + +use tokio::sync::RwLock; + +use crate::core::types::ClientSession; + +/// Manages client sessions keyed by public key (hex). +#[derive(Clone)] +pub struct SessionStore { + sessions: Arc>>, +} + +impl Default for SessionStore { + fn default() -> Self { + Self::new() + } +} + +impl SessionStore { + pub fn new() -> Self { + Self { + sessions: Arc::new(RwLock::new(HashMap::new())), + } + } + + /// Get an existing session or create a new one. Returns `true` if a new session was created. + pub async fn get_or_create_session(&self, client_pubkey: &str, is_encrypted: bool) -> bool { + let mut sessions = self.sessions.write().await; + if let Some(session) = sessions.get_mut(client_pubkey) { + session.is_encrypted = is_encrypted; + false + } else { + sessions.insert(client_pubkey.to_string(), ClientSession::new(is_encrypted)); + true + } + } + + /// Get a read-only snapshot of session fields. + /// Returns `None` if the session does not exist. + pub async fn get_session(&self, client_pubkey: &str) -> Option { + let sessions = self.sessions.read().await; + sessions.get(client_pubkey).map(|s| SessionSnapshot { + is_initialized: s.is_initialized, + is_encrypted: s.is_encrypted, + }) + } + + /// Mark a session as initialized. Returns `true` if the session existed. + pub async fn mark_initialized(&self, client_pubkey: &str) -> bool { + let mut sessions = self.sessions.write().await; + if let Some(session) = sessions.get_mut(client_pubkey) { + session.is_initialized = true; + true + } else { + false + } + } + + /// Remove a session. Returns `true` if it existed. + pub async fn remove_session(&self, client_pubkey: &str) -> bool { + self.sessions.write().await.remove(client_pubkey).is_some() + } + + /// Remove all sessions. + pub async fn clear(&self) { + self.sessions.write().await.clear(); + } + + /// Number of active sessions. + pub async fn session_count(&self) -> usize { + self.sessions.read().await.len() + } + + /// Return a snapshot of all sessions as `(client_pubkey, snapshot)` pairs. + pub async fn get_all_sessions(&self) -> Vec<(String, SessionSnapshot)> { + let sessions = self.sessions.read().await; + sessions + .iter() + .map(|(k, s)| { + ( + k.clone(), + SessionSnapshot { + is_initialized: s.is_initialized, + is_encrypted: s.is_encrypted, + }, + ) + }) + .collect() + } + + /// Acquire write access to the underlying map (transport internals only). + pub(crate) async fn write( + &self, + ) -> tokio::sync::RwLockWriteGuard<'_, HashMap> { + self.sessions.write().await + } + + /// Acquire read access to the underlying map (transport internals only). + pub(crate) async fn read( + &self, + ) -> tokio::sync::RwLockReadGuard<'_, HashMap> { + self.sessions.read().await + } +} + +/// A lightweight snapshot of session state (avoids exposing the full `ClientSession` +/// through the async API boundary). +#[derive(Debug, Clone, PartialEq, Eq)] +pub struct SessionSnapshot { + pub is_initialized: bool, + pub is_encrypted: bool, +} + +#[cfg(test)] +mod tests { + use super::*; + + #[tokio::test] + async fn create_and_retrieve_session() { + let store = SessionStore::new(); + + let created = store.get_or_create_session("client-1", true).await; + assert!(created); + + let snap = store.get_session("client-1").await.unwrap(); + assert!(snap.is_encrypted); + assert!(!snap.is_initialized); + } + + #[tokio::test] + async fn get_or_create_returns_existing() { + let store = SessionStore::new(); + + let created = store.get_or_create_session("client-1", false).await; + assert!(created); + + let created2 = store.get_or_create_session("client-1", true).await; + assert!(!created2); + + // is_encrypted should have been updated. + let snap = store.get_session("client-1").await.unwrap(); + assert!(snap.is_encrypted); + } + + #[tokio::test] + async fn mark_initialized() { + let store = SessionStore::new(); + store.get_or_create_session("client-1", false).await; + + assert!(store.mark_initialized("client-1").await); + let snap = store.get_session("client-1").await.unwrap(); + assert!(snap.is_initialized); + } + + #[tokio::test] + async fn mark_initialized_unknown_returns_false() { + let store = SessionStore::new(); + assert!(!store.mark_initialized("unknown").await); + } + + #[tokio::test] + async fn remove_session() { + let store = SessionStore::new(); + store.get_or_create_session("client-1", false).await; + assert!(store.remove_session("client-1").await); + assert!(store.get_session("client-1").await.is_none()); + } + + #[tokio::test] + async fn remove_unknown_returns_false() { + let store = SessionStore::new(); + assert!(!store.remove_session("unknown").await); + } + + #[tokio::test] + async fn clear_all_sessions() { + let store = SessionStore::new(); + store.get_or_create_session("client-1", false).await; + store.get_or_create_session("client-2", true).await; + + store.clear().await; + + assert_eq!(store.session_count().await, 0); + assert!(store.get_session("client-1").await.is_none()); + assert!(store.get_session("client-2").await.is_none()); + } + + #[tokio::test] + async fn get_all_sessions() { + let store = SessionStore::new(); + store.get_or_create_session("client-1", false).await; + store.get_or_create_session("client-2", true).await; + + let all = store.get_all_sessions().await; + assert_eq!(all.len(), 2); + + let keys: Vec<&str> = all.iter().map(|(k, _)| k.as_str()).collect(); + assert!(keys.contains(&"client-1")); + assert!(keys.contains(&"client-2")); + } +} diff --git a/tests/conformance_stores.rs b/tests/conformance_stores.rs new file mode 100644 index 0000000..0aa659f --- /dev/null +++ b/tests/conformance_stores.rs @@ -0,0 +1,725 @@ +//! Conformance tests for store abstractions. +//! +//! Ported from the TS SDK: +//! - `src/transport/nostr-client/correlation-store.test.ts` +//! - `src/transport/nostr-server/session-store.test.ts` +//! - `src/transport/nostr-server/correlation-store.test.ts` +//! +//! LRU eviction tests are deferred — only non-eviction tests are ported here. + +use contextvm_sdk::{ClientCorrelationStore, ServerEventRouteStore, SessionStore}; +use serde_json::json; + +// ════════════════════════════════════════════════════════════════════ +// Client Correlation Store +// ════════════════════════════════════════════════════════════════════ + +mod client_correlation_store { + use super::*; + + // ── registerRequest ─────────────────────────────────────────── + + #[tokio::test] + async fn stores_request_with_event_id() { + let store = ClientCorrelationStore::new(); + store.register("event123".into(), json!("req1")).await; + assert!(store.contains("event123").await); + } + + #[tokio::test] + async fn stores_and_resolves_original_request_id() { + let store = ClientCorrelationStore::new(); + store.register("event456".into(), json!("req2")).await; + + // Retrieve the stored original ID. + let original = store.get_original_id("event456").await.unwrap(); + assert_eq!(original, json!("req2")); + + // After removal the entry is fully gone. + assert!(store.remove("event456").await); + assert!(store.get_original_id("event456").await.is_none()); + } + + // ── resolveResponse (get_original_id + remove) ──────────────── + + #[tokio::test] + async fn restores_original_request_id() { + let store = ClientCorrelationStore::new(); + store.register("event789".into(), json!(42)).await; + let original = store.get_original_id("event789").await.unwrap(); + assert_eq!(original, json!(42)); + } + + #[tokio::test] + async fn returns_none_for_unknown_event_id() { + let store = ClientCorrelationStore::new(); + assert!(store.get_original_id("unknown").await.is_none()); + } + + #[tokio::test] + async fn get_and_remove_roundtrip() { + let store = ClientCorrelationStore::new(); + store.register("event1".into(), json!("req1")).await; + + // Lookup succeeds before removal. + let original = store.get_original_id("event1").await.unwrap(); + assert_eq!(original, json!("req1")); + + // Remove returns true and cleans up completely. + assert!(store.remove("event1").await); + assert!(!store.contains("event1").await); + assert!(store.get_original_id("event1").await.is_none()); + } + + // ── removePendingRequest ────────────────────────────────────── + + #[tokio::test] + async fn removes_existing_request() { + let store = ClientCorrelationStore::new(); + store.register("event1".into(), json!(null)).await; + assert!(store.remove("event1").await); + assert!(!store.contains("event1").await); + } + + #[tokio::test] + async fn returns_false_for_unknown_request() { + let store = ClientCorrelationStore::new(); + assert!(!store.remove("unknown").await); + } + + // ── clear ───────────────────────────────────────────────────── + + #[tokio::test] + async fn removes_all_pending_requests() { + let store = ClientCorrelationStore::new(); + store.register("event1".into(), json!(null)).await; + store.register("event2".into(), json!(null)).await; + store.clear().await; + assert_eq!(store.count().await, 0); + } +} + +// ════════════════════════════════════════════════════════════════════ +// Server Session Store +// ════════════════════════════════════════════════════════════════════ + +mod server_session_store { + use super::*; + + #[tokio::test] + async fn create_and_retrieve_sessions() { + let store = SessionStore::new(); + + let created = store.get_or_create_session("client-1", true).await; + assert!(created); + + let session = store.get_session("client-1").await.unwrap(); + assert!(session.is_encrypted); + assert!(!session.is_initialized); + + // Retrieving same key should return it + assert!(store.get_session("client-1").await.is_some()); + } + + #[tokio::test] + async fn mark_sessions_as_initialized() { + let store = SessionStore::new(); + store.get_or_create_session("client-1", false).await; + + let result = store.mark_initialized("client-1").await; + assert!(result); + + let session = store.get_session("client-1").await.unwrap(); + assert!(session.is_initialized); + } + + #[tokio::test] + async fn remove_sessions() { + let store = SessionStore::new(); + store.get_or_create_session("client-1", false).await; + + let result = store.remove_session("client-1").await; + assert!(result); + assert!(store.get_session("client-1").await.is_none()); + } + + #[tokio::test] + async fn clear_all_sessions() { + let store = SessionStore::new(); + store.get_or_create_session("client-1", false).await; + store.get_or_create_session("client-2", true).await; + + store.clear().await; + + assert_eq!(store.session_count().await, 0); + assert!(store.get_session("client-1").await.is_none()); + assert!(store.get_session("client-2").await.is_none()); + } + + #[tokio::test] + async fn iterate_over_all_sessions() { + let store = SessionStore::new(); + store.get_or_create_session("client-1", false).await; + store.get_or_create_session("client-2", true).await; + + let sessions = store.get_all_sessions().await; + assert_eq!(sessions.len(), 2); + + let keys: Vec<&str> = sessions.iter().map(|(k, _)| k.as_str()).collect(); + assert!(keys.contains(&"client-1")); + assert!(keys.contains(&"client-2")); + } +} + +// ════════════════════════════════════════════════════════════════════ +// Server Correlation Store (ServerEventRouteStore) +// ════════════════════════════════════════════════════════════════════ + +mod server_correlation_store { + use super::*; + + // ── registerEventRoute ──────────────────────────────────────── + + #[tokio::test] + async fn registers_route_with_all_fields() { + let store = ServerEventRouteStore::new(); + store + .register( + "event1".into(), + "client1".into(), + json!("req1"), + Some("token1".into()), + ) + .await; + + let route = store.get_route("event1").await.unwrap(); + assert_eq!(route.client_pubkey, "client1"); + assert_eq!(route.original_request_id, json!("req1")); + assert_eq!(route.progress_token.as_deref(), Some("token1")); + } + + #[tokio::test] + async fn registers_route_without_progress_token() { + let store = ServerEventRouteStore::new(); + store + .register("event1".into(), "client1".into(), json!("req1"), None) + .await; + + let route = store.get_route("event1").await.unwrap(); + assert!(route.progress_token.is_none()); + } + + #[tokio::test] + async fn registers_route_with_numeric_request_id() { + let store = ServerEventRouteStore::new(); + store + .register("event1".into(), "client1".into(), json!(42), None) + .await; + + let route = store.get_route("event1").await.unwrap(); + assert_eq!(route.original_request_id, json!(42)); + } + + #[tokio::test] + async fn updates_client_index_when_registering() { + let store = ServerEventRouteStore::new(); + store + .register("event1".into(), "client1".into(), json!("req1"), None) + .await; + store + .register("event2".into(), "client1".into(), json!("req2"), None) + .await; + + assert!(store.has_active_routes_for_client("client1").await); + } + + #[tokio::test] + async fn registers_progress_token_mapping() { + let store = ServerEventRouteStore::new(); + store + .register( + "event1".into(), + "client1".into(), + json!("req1"), + Some("token1".into()), + ) + .await; + + assert_eq!( + store + .get_event_id_by_progress_token("token1") + .await + .as_deref(), + Some("event1") + ); + assert!(store.has_progress_token("token1").await); + } + + // ── getEventRoute ───────────────────────────────────────────── + + #[tokio::test] + async fn returns_none_for_unknown_event_id() { + let store = ServerEventRouteStore::new(); + assert!(store.get_route("unknown").await.is_none()); + } + + // ── popEventRoute ───────────────────────────────────────────── + + #[tokio::test] + async fn returns_and_removes_route_atomically() { + let store = ServerEventRouteStore::new(); + store + .register( + "event1".into(), + "client1".into(), + json!("req1"), + Some("token1".into()), + ) + .await; + + let route = store.pop("event1").await.unwrap(); + assert_eq!(route.client_pubkey, "client1"); + assert_eq!(route.original_request_id, json!("req1")); + assert_eq!(route.progress_token.as_deref(), Some("token1")); + + // Route + token mapping should be gone. + assert!(!store.has_event_route("event1").await); + assert!(!store.has_progress_token("token1").await); + + // Second pop is a no-op. + assert!(store.pop("event1").await.is_none()); + } + + // ── getEventIdByProgressToken ───────────────────────────────── + + #[tokio::test] + async fn returns_none_for_unknown_token() { + let store = ServerEventRouteStore::new(); + assert!(store + .get_event_id_by_progress_token("unknown") + .await + .is_none()); + } + + #[tokio::test] + async fn returns_correct_event_id_for_token() { + let store = ServerEventRouteStore::new(); + store + .register( + "event1".into(), + "client1".into(), + json!("req1"), + Some("token1".into()), + ) + .await; + store + .register( + "event2".into(), + "client2".into(), + json!("req2"), + Some("token2".into()), + ) + .await; + + assert_eq!( + store + .get_event_id_by_progress_token("token1") + .await + .as_deref(), + Some("event1") + ); + assert_eq!( + store + .get_event_id_by_progress_token("token2") + .await + .as_deref(), + Some("event2") + ); + } + + // ── removeRoutesForClient ───────────────────────────────────── + + #[tokio::test] + async fn removes_all_routes_for_client() { + let store = ServerEventRouteStore::new(); + store + .register("event1".into(), "client1".into(), json!("req1"), None) + .await; + store + .register("event2".into(), "client1".into(), json!("req2"), None) + .await; + store + .register("event3".into(), "client2".into(), json!("req3"), None) + .await; + + let removed = store.remove_for_client("client1").await; + assert_eq!(removed, 2); + + assert!(!store.has_event_route("event1").await); + assert!(!store.has_event_route("event2").await); + assert!(store.has_event_route("event3").await); + } + + #[tokio::test] + async fn returns_zero_for_unknown_client() { + let store = ServerEventRouteStore::new(); + assert_eq!(store.remove_for_client("unknown").await, 0); + } + + #[tokio::test] + async fn cleans_up_progress_tokens_for_removed_routes() { + let store = ServerEventRouteStore::new(); + store + .register( + "event1".into(), + "client1".into(), + json!("req1"), + Some("token1".into()), + ) + .await; + store + .register( + "event2".into(), + "client1".into(), + json!("req2"), + Some("token2".into()), + ) + .await; + + store.remove_for_client("client1").await; + + assert!(!store.has_progress_token("token1").await); + assert!(!store.has_progress_token("token2").await); + } + + #[tokio::test] + async fn removes_client_from_index_after_cleanup() { + let store = ServerEventRouteStore::new(); + store + .register("event1".into(), "client1".into(), json!("req1"), None) + .await; + + store.remove_for_client("client1").await; + + assert!(!store.has_active_routes_for_client("client1").await); + } + + // ── hasEventRoute ───────────────────────────────────────────── + + #[tokio::test] + async fn has_event_route_true_for_existing() { + let store = ServerEventRouteStore::new(); + store + .register("event1".into(), "client1".into(), json!("req1"), None) + .await; + assert!(store.has_event_route("event1").await); + } + + #[tokio::test] + async fn has_event_route_false_for_unknown() { + let store = ServerEventRouteStore::new(); + assert!(!store.has_event_route("unknown").await); + } + + // ── hasProgressToken ────────────────────────────────────────── + + #[tokio::test] + async fn has_progress_token_true_for_existing() { + let store = ServerEventRouteStore::new(); + store + .register( + "event1".into(), + "client1".into(), + json!("req1"), + Some("token1".into()), + ) + .await; + assert!(store.has_progress_token("token1").await); + } + + #[tokio::test] + async fn has_progress_token_false_for_unknown() { + let store = ServerEventRouteStore::new(); + assert!(!store.has_progress_token("unknown").await); + } + + // ── hasActiveRoutesForClient ────────────────────────────────── + + #[tokio::test] + async fn has_active_routes_true_when_routes_exist() { + let store = ServerEventRouteStore::new(); + store + .register("event1".into(), "client1".into(), json!("req1"), None) + .await; + assert!(store.has_active_routes_for_client("client1").await); + } + + #[tokio::test] + async fn has_active_routes_false_when_no_routes() { + let store = ServerEventRouteStore::new(); + assert!(!store.has_active_routes_for_client("client1").await); + } + + #[tokio::test] + async fn has_active_routes_false_after_all_popped() { + let store = ServerEventRouteStore::new(); + store + .register("event1".into(), "client1".into(), json!("req1"), None) + .await; + store.pop("event1").await; + assert!(!store.has_active_routes_for_client("client1").await); + } + + // ── eventRouteCount ─────────────────────────────────────────── + + #[tokio::test] + async fn event_route_count_zero_for_empty() { + let store = ServerEventRouteStore::new(); + assert_eq!(store.event_route_count().await, 0); + } + + #[tokio::test] + async fn event_route_count_after_registrations() { + let store = ServerEventRouteStore::new(); + store + .register("event1".into(), "client1".into(), json!("req1"), None) + .await; + store + .register("event2".into(), "client1".into(), json!("req2"), None) + .await; + assert_eq!(store.event_route_count().await, 2); + } + + #[tokio::test] + async fn event_route_count_after_removals() { + let store = ServerEventRouteStore::new(); + store + .register("event1".into(), "client1".into(), json!("req1"), None) + .await; + store + .register("event2".into(), "client1".into(), json!("req2"), None) + .await; + store.pop("event1").await; + assert_eq!(store.event_route_count().await, 1); + } + + // ── progressTokenCount ──────────────────────────────────────── + + #[tokio::test] + async fn progress_token_count_zero_for_empty() { + let store = ServerEventRouteStore::new(); + assert_eq!(store.progress_token_count().await, 0); + } + + #[tokio::test] + async fn progress_token_count_after_registrations() { + let store = ServerEventRouteStore::new(); + store + .register( + "event1".into(), + "client1".into(), + json!("req1"), + Some("token1".into()), + ) + .await; + store + .register( + "event2".into(), + "client1".into(), + json!("req2"), + Some("token2".into()), + ) + .await; + store + .register("event3".into(), "client1".into(), json!("req3"), None) + .await; + assert_eq!(store.progress_token_count().await, 2); + } + + #[tokio::test] + async fn progress_token_count_after_removals() { + let store = ServerEventRouteStore::new(); + store + .register( + "event1".into(), + "client1".into(), + json!("req1"), + Some("token1".into()), + ) + .await; + store + .register( + "event2".into(), + "client1".into(), + json!("req2"), + Some("token2".into()), + ) + .await; + store.pop("event1").await; + assert_eq!(store.progress_token_count().await, 1); + } + + // ── clear ───────────────────────────────────────────────────── + + #[tokio::test] + async fn clear_removes_all_routes() { + let store = ServerEventRouteStore::new(); + store + .register("event1".into(), "client1".into(), json!("req1"), None) + .await; + store + .register("event2".into(), "client2".into(), json!("req2"), None) + .await; + + store.clear().await; + + assert_eq!(store.event_route_count().await, 0); + assert!(!store.has_event_route("event1").await); + } + + #[tokio::test] + async fn clear_removes_all_progress_tokens() { + let store = ServerEventRouteStore::new(); + store + .register( + "event1".into(), + "client1".into(), + json!("req1"), + Some("token1".into()), + ) + .await; + + store.clear().await; + + assert_eq!(store.progress_token_count().await, 0); + assert!(!store.has_progress_token("token1").await); + } + + #[tokio::test] + async fn clear_cleans_up_client_index() { + let store = ServerEventRouteStore::new(); + store + .register("event1".into(), "client1".into(), json!("req1"), None) + .await; + + store.clear().await; + + assert!(!store.has_active_routes_for_client("client1").await); + } + + // ── complex scenarios ───────────────────────────────────────── + + #[tokio::test] + async fn handles_multiple_clients_with_multiple_routes() { + let store = ServerEventRouteStore::new(); + + // Client 1: 2 routes + store + .register( + "c1e1".into(), + "client1".into(), + json!("r1"), + Some("t1".into()), + ) + .await; + store + .register( + "c1e2".into(), + "client1".into(), + json!("r2"), + Some("t2".into()), + ) + .await; + + // Client 2: 1 route + store + .register( + "c2e1".into(), + "client2".into(), + json!("r3"), + Some("t3".into()), + ) + .await; + + assert_eq!(store.event_route_count().await, 3); + assert_eq!(store.progress_token_count().await, 3); + assert!(store.has_active_routes_for_client("client1").await); + assert!(store.has_active_routes_for_client("client2").await); + + // Remove one of client1's routes + store.pop("c1e1").await; + + assert!(store.has_active_routes_for_client("client1").await); + assert!(!store.has_progress_token("t1").await); + assert!(store.has_progress_token("t2").await); + } + + #[tokio::test] + async fn handles_route_replacement_with_same_progress_token() { + let store = ServerEventRouteStore::new(); + + store + .register( + "event1".into(), + "client1".into(), + json!("req1"), + Some("token1".into()), + ) + .await; + assert_eq!( + store + .get_event_id_by_progress_token("token1") + .await + .as_deref(), + Some("event1") + ); + + // Register new route with same token (overwrites mapping) + store + .register( + "event2".into(), + "client1".into(), + json!("req2"), + Some("token1".into()), + ) + .await; + assert_eq!( + store + .get_event_id_by_progress_token("token1") + .await + .as_deref(), + Some("event2") + ); + } + + #[tokio::test] + async fn maintains_consistency_through_mixed_operations() { + let store = ServerEventRouteStore::new(); + + // Add routes + store + .register("e1".into(), "c1".into(), json!("r1"), Some("t1".into())) + .await; + store + .register("e2".into(), "c1".into(), json!("r2"), Some("t2".into())) + .await; + store + .register("e3".into(), "c2".into(), json!("r3"), Some("t3".into())) + .await; + + // Remove one + store.pop("e2").await; + + // Verify consistency + assert!(store.has_event_route("e1").await); + assert!(!store.has_event_route("e2").await); + assert!(store.has_event_route("e3").await); + + assert!(store.has_progress_token("t1").await); + assert!(!store.has_progress_token("t2").await); + assert!(store.has_progress_token("t3").await); + + assert!(store.has_active_routes_for_client("c1").await); + assert!(store.has_active_routes_for_client("c2").await); + } +} From c2e9c48eabf775ec034e12cd4d1a1f8583a8aba8 Mon Sep 17 00:00:00 2001 From: Kushagra Date: Thu, 23 Apr 2026 14:41:52 +0530 Subject: [PATCH 044/116] feat(cep-19): Added ephemeral package handling logic in client transport --- src/proxy/mod.rs | 1 + src/transport/base.rs | 12 +- src/transport/client/mod.rs | 171 ++++++++++++++++++++++++++-- src/transport/server/mod.rs | 2 + tests/conformance_stateless_mode.rs | 3 +- 5 files changed, 179 insertions(+), 10 deletions(-) diff --git a/src/proxy/mod.rs b/src/proxy/mod.rs index df1d386..1322fa0 100644 --- a/src/proxy/mod.rs +++ b/src/proxy/mod.rs @@ -110,6 +110,7 @@ mod tests { relay_urls: vec!["wss://relay.example.com".to_string()], server_pubkey: server_pubkey.clone(), encryption_mode: EncryptionMode::Required, + gift_wrap_mode: GiftWrapMode::Optional, is_stateless: true, timeout: Duration::from_secs(60), log_file_path: None, diff --git a/src/transport/base.rs b/src/transport/base.rs index 4f488a5..ccd7e03 100644 --- a/src/transport/base.rs +++ b/src/transport/base.rs @@ -112,6 +112,7 @@ impl BaseTransport { kind: u16, tags: Vec, is_encrypted: Option, + gift_wrap_kind: Option, ) -> Result { let should_encrypt = self.should_encrypt(kind, is_encrypted); @@ -128,13 +129,20 @@ impl BaseTransport { .signer() .await .map_err(|e| Error::Encryption(e.to_string()))?; - let gift_wrap_event = - encryption::gift_wrap_single_layer(&signer, recipient, &event_json).await?; + let selected_gift_wrap_kind = gift_wrap_kind.unwrap_or(GIFT_WRAP_KIND); + let gift_wrap_event = encryption::gift_wrap_single_layer_with_kind( + &signer, + recipient, + &event_json, + selected_gift_wrap_kind, + ) + .await?; self.relay_pool.publish_event(&gift_wrap_event).await?; tracing::debug!( target: LOG_TARGET, signed_event_id = %signed_event_id, envelope_id = %gift_wrap_event.id, + gift_wrap_kind = selected_gift_wrap_kind, "Sent encrypted MCP message" ); } else { diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index 955e8fc..32e7427 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -8,6 +8,7 @@ pub mod correlation_store; pub use correlation_store::ClientCorrelationStore; use std::num::NonZeroUsize; +use std::sync::atomic::{AtomicBool, Ordering}; use std::sync::{Arc, Mutex}; use std::time::Duration; @@ -35,6 +36,8 @@ pub struct NostrClientTransportConfig { pub server_pubkey: String, /// Encryption mode. pub encryption_mode: EncryptionMode, + /// Gift-wrap policy for encrypted messages. + pub gift_wrap_mode: GiftWrapMode, /// Stateless mode: emulate initialize response locally. pub is_stateless: bool, /// Response timeout (default: 30s). @@ -49,6 +52,7 @@ impl Default for NostrClientTransportConfig { relay_urls: vec!["wss://relay.damus.io".to_string()], server_pubkey: String::new(), encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, is_stateless: false, timeout: Duration::from_secs(30), log_file_path: None, @@ -63,6 +67,8 @@ pub struct NostrClientTransport { server_pubkey: PublicKey, /// Pending request event IDs awaiting responses. pending_requests: ClientCorrelationStore, + /// Learned support for server-side ephemeral gift wraps. + server_supports_ephemeral: Arc, /// Outer gift-wrap event IDs successfully decrypted and verified (inner `verify()`). /// Duplicate outer ids are skipped before decrypt; ids are inserted only after success /// so failed decrypt/verify can be retried on redelivery. @@ -120,6 +126,7 @@ impl NostrClientTransport { config, server_pubkey, pending_requests: ClientCorrelationStore::new(), + server_supports_ephemeral: Arc::new(AtomicBool::new(false)), seen_gift_wrap_ids, message_tx: tx, message_rx: Some(rx), @@ -164,6 +171,7 @@ impl NostrClientTransport { config, server_pubkey, pending_requests: ClientCorrelationStore::new(), + server_supports_ephemeral: Arc::new(AtomicBool::new(false)), seen_gift_wrap_ids, message_tx: tx, message_rx: Some(rx), @@ -217,6 +225,8 @@ impl NostrClientTransport { let server_pubkey = self.server_pubkey; let tx = self.message_tx.clone(); let encryption_mode = self.config.encryption_mode; + let gift_wrap_mode = self.config.gift_wrap_mode; + let server_supports_ephemeral = self.server_supports_ephemeral.clone(); let seen_gift_wrap_ids = self.seen_gift_wrap_ids.clone(); tokio::spawn(async move { @@ -226,6 +236,8 @@ impl NostrClientTransport { server_pubkey, tx, encryption_mode, + gift_wrap_mode, + server_supports_ephemeral, seen_gift_wrap_ids, ) .await; @@ -270,6 +282,7 @@ impl NostrClientTransport { CTXVM_MESSAGES_KIND, tags, None, + Some(self.choose_outbound_gift_wrap_kind()), ) .await .map_err(|error| { @@ -323,12 +336,15 @@ impl NostrClientTransport { let _ = self.message_tx.send(response); } + #[allow(clippy::too_many_arguments)] async fn event_loop( relay_pool: Arc, pending: ClientCorrelationStore, server_pubkey: PublicKey, tx: tokio::sync::mpsc::UnboundedSender, encryption_mode: EncryptionMode, + gift_wrap_mode: GiftWrapMode, + server_supports_ephemeral: Arc, seen_gift_wrap_ids: Arc>>, ) { let mut notifications = relay_pool.notifications(); @@ -336,25 +352,42 @@ impl NostrClientTransport { while let Ok(notification) = notifications.recv().await { if let RelayPoolNotification::Event { event, .. } = notification { let is_gift_wrap = is_gift_wrap_kind(&event.kind); + let outer_kind = event.kind.as_u16(); - // Enforce mode before decrypt/parse. + // Enforce encryption mode before decrypt/parse. if violates_encryption_policy(&event.kind, &encryption_mode) { if is_gift_wrap { tracing::warn!( + target: LOG_TARGET, event_id = %event.id.to_hex(), - "Received encrypted response but encryption is disabled" + event_kind = outer_kind, + configured_mode = ?gift_wrap_mode, + "Skipping encrypted response because client encryption is disabled" ); } else { tracing::warn!( + target: LOG_TARGET, event_id = %event.id.to_hex(), - "Received unencrypted response but encryption is required" + "Skipping plaintext response because client encryption is required" ); } continue; } + // Enforce CEP-19 gift-wrap-mode policy. + if is_gift_wrap && !gift_wrap_mode.allows_kind(outer_kind) { + tracing::warn!( + target: LOG_TARGET, + event_id = %event.id.to_hex(), + event_kind = outer_kind, + configured_mode = ?gift_wrap_mode, + "Skipping gift wrap due to CEP-19 policy" + ); + continue; + } + // Handle gift-wrapped events - let (actual_event_content, actual_pubkey, e_tag) = if is_gift_wrap { + let (actual_event_content, actual_pubkey, e_tag, verified_tags) = if is_gift_wrap { { let guard = match seen_gift_wrap_ids.lock() { Ok(g) => g, @@ -399,7 +432,7 @@ impl NostrClientTransport { guard.put(event.id, ()); } let e_tag = serializers::get_tag_value(&inner.tags, "e"); - (inner.content, inner.pubkey, e_tag) + (inner.content, inner.pubkey, e_tag, inner.tags) } Err(error) => { tracing::error!( @@ -422,7 +455,12 @@ impl NostrClientTransport { } } else { let e_tag = serializers::get_tag_value(&event.tags, "e"); - (event.content.clone(), event.pubkey, e_tag) + ( + event.content.clone(), + event.pubkey, + e_tag, + event.tags.clone(), + ) }; // Verify it's from our server @@ -436,6 +474,16 @@ impl NostrClientTransport { continue; } + // CEP-19: learn ephemeral support from server + if Self::should_learn_ephemeral_support( + actual_pubkey, + server_pubkey, + if is_gift_wrap { Some(outer_kind) } else { None }, + &verified_tags, + ) { + server_supports_ephemeral.store(true, Ordering::Relaxed); + } + // Correlate response if let Some(ref correlated_id) = e_tag { let is_pending = pending.contains(correlated_id.as_str()).await; @@ -460,6 +508,45 @@ impl NostrClientTransport { } } } + + fn choose_outbound_gift_wrap_kind(&self) -> u16 { + match self.config.gift_wrap_mode { + GiftWrapMode::Persistent => GIFT_WRAP_KIND, + GiftWrapMode::Ephemeral => EPHEMERAL_GIFT_WRAP_KIND, + GiftWrapMode::Optional => { + if self.server_supports_ephemeral.load(Ordering::Relaxed) { + EPHEMERAL_GIFT_WRAP_KIND + } else { + GIFT_WRAP_KIND + } + } + } + } + + fn has_support_ephemeral_tag(tags: &Tags) -> bool { + tags.iter().any(|tag| { + tag.kind() + == TagKind::Custom( + crate::core::constants::tags::SUPPORT_ENCRYPTION_EPHEMERAL.into(), + ) + }) + } + + fn should_learn_ephemeral_support( + actual_pubkey: PublicKey, + server_pubkey: PublicKey, + event_kind: Option, + tags: &Tags, + ) -> bool { + actual_pubkey == server_pubkey + && (event_kind == Some(EPHEMERAL_GIFT_WRAP_KIND) + || Self::has_support_ephemeral_tag(tags)) + } + + /// Returns whether the client has learned ephemeral gift-wrap support from the server. + pub fn server_supports_ephemeral_encryption(&self) -> bool { + self.server_supports_ephemeral.load(Ordering::Relaxed) + } } #[inline] @@ -486,6 +573,7 @@ mod tests { assert_eq!(config.relay_urls, vec!["wss://relay.damus.io".to_string()]); assert!(config.server_pubkey.is_empty()); assert_eq!(config.encryption_mode, EncryptionMode::Optional); + assert_eq!(config.gift_wrap_mode, GiftWrapMode::Optional); assert!(!config.is_stateless); assert_eq!(config.timeout, Duration::from_secs(30)); assert!(config.log_file_path.is_none()); @@ -500,9 +588,78 @@ mod tests { assert!(config.is_stateless); } + #[test] + fn test_has_support_ephemeral_tag_detects_capability() { + let tags = Tags::from_list(vec![Tag::custom( + TagKind::Custom(crate::core::constants::tags::SUPPORT_ENCRYPTION_EPHEMERAL.into()), + Vec::::new(), + )]); + assert!(NostrClientTransport::has_support_ephemeral_tag(&tags)); + } + + #[test] + fn test_has_support_ephemeral_tag_absent() { + let tags = Tags::from_list(vec![Tag::custom( + TagKind::Custom(crate::core::constants::tags::SUPPORT_ENCRYPTION.into()), + Vec::::new(), + )]); + assert!(!NostrClientTransport::has_support_ephemeral_tag(&tags)); + } + + #[test] + fn test_should_learn_ephemeral_support_requires_matching_server_pubkey() { + let server_keys = Keys::generate(); + let other_keys = Keys::generate(); + let tags = Tags::from_list(vec![Tag::custom( + TagKind::Custom(crate::core::constants::tags::SUPPORT_ENCRYPTION_EPHEMERAL.into()), + Vec::::new(), + )]); + + assert!(!NostrClientTransport::should_learn_ephemeral_support( + other_keys.public_key(), + server_keys.public_key(), + Some(EPHEMERAL_GIFT_WRAP_KIND), + &tags, + )); + assert!(NostrClientTransport::should_learn_ephemeral_support( + server_keys.public_key(), + server_keys.public_key(), + Some(EPHEMERAL_GIFT_WRAP_KIND), + &tags, + )); + } + + #[test] + fn test_should_learn_from_ephemeral_kind_even_without_tag() { + let server_keys = Keys::generate(); + let empty_tags = Tags::from_list(vec![]); + + assert!(NostrClientTransport::should_learn_ephemeral_support( + server_keys.public_key(), + server_keys.public_key(), + Some(EPHEMERAL_GIFT_WRAP_KIND), + &empty_tags, + )); + } + + #[test] + fn test_should_learn_from_tag_without_ephemeral_kind() { + let server_keys = Keys::generate(); + let tags = Tags::from_list(vec![Tag::custom( + TagKind::Custom(crate::core::constants::tags::SUPPORT_ENCRYPTION_EPHEMERAL.into()), + Vec::::new(), + )]); + + assert!(NostrClientTransport::should_learn_ephemeral_support( + server_keys.public_key(), + server_keys.public_key(), + Some(GIFT_WRAP_KIND), // persistent kind, but tag present + &tags, + )); + } + #[test] fn test_stateless_emulated_initialize_response_shape() { - // Verify the emulated response has the expected structure let request_id = serde_json::json!(1); let response = JsonRpcMessage::Response(JsonRpcResponse { jsonrpc: "2.0".to_string(), diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 7781557..4516bec 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -346,6 +346,7 @@ impl NostrServerTransport { CTXVM_MESSAGES_KIND, tags, Some(is_encrypted), + None, ) .await .map_err(|error| { @@ -412,6 +413,7 @@ impl NostrServerTransport { CTXVM_MESSAGES_KIND, tags, Some(is_encrypted), + None, ) .await?; diff --git a/tests/conformance_stateless_mode.rs b/tests/conformance_stateless_mode.rs index 54b633b..6eee1b6 100644 --- a/tests/conformance_stateless_mode.rs +++ b/tests/conformance_stateless_mode.rs @@ -3,7 +3,7 @@ use std::time::Duration; use contextvm_sdk::core::constants::{mcp_protocol_version, INITIALIZE_METHOD}; -use contextvm_sdk::core::types::{EncryptionMode, JsonRpcMessage, JsonRpcRequest}; +use contextvm_sdk::core::types::{EncryptionMode, GiftWrapMode, JsonRpcMessage, JsonRpcRequest}; use contextvm_sdk::signer; use contextvm_sdk::transport::client::{NostrClientTransport, NostrClientTransportConfig}; use tokio::time::timeout; @@ -19,6 +19,7 @@ async fn make_stateless_transport() -> ( relay_urls: Vec::new(), server_pubkey: server_keys.public_key().to_hex(), encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, is_stateless: true, timeout: Duration::from_secs(1), log_file_path: None, From e5fe6d66ee90298dea3df6a32805559a1448f973 Mon Sep 17 00:00:00 2001 From: Harsh Date: Fri, 24 Apr 2026 16:30:06 +0530 Subject: [PATCH 045/116] test: add LRU eviction and registerRequest initialize flag conformance tests --- src/transport/client/correlation_store.rs | 78 +++++++++++---- src/transport/client/mod.rs | 3 +- src/transport/server/correlation_store.rs | 61 ++++++++---- tests/conformance_stores.rs | 112 ++++++++++++++++++++-- 4 files changed, 210 insertions(+), 44 deletions(-) diff --git a/src/transport/client/correlation_store.rs b/src/transport/client/correlation_store.rs index 140f664..924e283 100644 --- a/src/transport/client/correlation_store.rs +++ b/src/transport/client/correlation_store.rs @@ -1,14 +1,27 @@ //! Client-side correlation store for tracking pending request event IDs. -use std::collections::HashMap; +use std::num::NonZeroUsize; use std::sync::Arc; +use lru::LruCache; use tokio::sync::RwLock; +/// A pending request tracked by the correlation store. +#[derive(Debug, Clone)] +pub struct PendingRequest { + /// The original JSON-RPC request ID before event-ID replacement. + pub original_id: serde_json::Value, + /// Whether this request is an `initialize` handshake. + pub is_initialize: bool, +} + /// Tracks pending request event IDs and their original request IDs on the client side. +/// +/// An optional capacity limit enables LRU eviction of the oldest entry when the +/// store is full. #[derive(Clone)] pub struct ClientCorrelationStore { - pending_requests: Arc>>, + pending_requests: Arc>>, } impl Default for ClientCorrelationStore { @@ -20,34 +33,61 @@ impl Default for ClientCorrelationStore { impl ClientCorrelationStore { pub fn new() -> Self { Self { - pending_requests: Arc::new(RwLock::new(HashMap::new())), + pending_requests: Arc::new(RwLock::new(LruCache::unbounded())), + } + } + + /// Create a store with an upper bound on pending requests. + /// When the limit is reached the oldest entry is evicted. + pub fn with_max_pending(max_pending: usize) -> Self { + Self { + pending_requests: Arc::new(RwLock::new(LruCache::new( + NonZeroUsize::new(max_pending).expect("max_pending must be non-zero"), + ))), } } /// Register a pending request with its original JSON-RPC request ID. - pub async fn register(&self, event_id: String, original_id: serde_json::Value) { + pub async fn register( + &self, + event_id: String, + original_id: serde_json::Value, + is_initialize: bool, + ) { + self.pending_requests.write().await.push( + event_id, + PendingRequest { + original_id, + is_initialize, + }, + ); + } + + /// Check whether a given event ID corresponds to an `initialize` request. + pub async fn is_initialize_request(&self, event_id: &str) -> bool { self.pending_requests - .write() + .read() .await - .insert(event_id, original_id); + .peek(event_id) + .is_some_and(|r| r.is_initialize) } pub async fn contains(&self, event_id: &str) -> bool { - self.pending_requests.read().await.contains_key(event_id) + self.pending_requests.read().await.contains(event_id) } /// Remove a pending request. Returns `true` if the key existed. pub async fn remove(&self, event_id: &str) -> bool { - self.pending_requests - .write() - .await - .remove(event_id) - .is_some() + self.pending_requests.write().await.pop(event_id).is_some() } /// Retrieve the original request ID for a given event ID without removing it. pub async fn get_original_id(&self, event_id: &str) -> Option { - self.pending_requests.read().await.get(event_id).cloned() + self.pending_requests + .read() + .await + .peek(event_id) + .map(|r| r.original_id.clone()) } /// Number of pending requests currently tracked. @@ -74,8 +114,12 @@ mod tests { #[tokio::test] async fn contains_after_clear() { let store = ClientCorrelationStore::new(); - store.register("e1".into(), serde_json::Value::Null).await; - store.register("e2".into(), serde_json::Value::Null).await; + store + .register("e1".into(), serde_json::Value::Null, false) + .await; + store + .register("e2".into(), serde_json::Value::Null, false) + .await; assert!(store.contains("e1").await); store.clear().await; assert!(!store.contains("e1").await); @@ -85,7 +129,9 @@ mod tests { #[tokio::test] async fn register_and_remove_roundtrip() { let store = ClientCorrelationStore::new(); - store.register("e1".into(), serde_json::Value::Null).await; + store + .register("e1".into(), serde_json::Value::Null, false) + .await; assert!(store.contains("e1").await); assert!(store.remove("e1").await); assert!(!store.contains("e1").await); diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index d7f2c2b..f615967 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -284,8 +284,9 @@ impl NostrClientTransport { })?; if let JsonRpcMessage::Request(ref req) = message { + let is_initialize = req.method == INITIALIZE_METHOD; self.pending_requests - .register(event_id.to_hex(), req.id.clone()) + .register(event_id.to_hex(), req.id.clone(), is_initialize) .await; } diff --git a/src/transport/server/correlation_store.rs b/src/transport/server/correlation_store.rs index 1879d80..09fd16e 100644 --- a/src/transport/server/correlation_store.rs +++ b/src/transport/server/correlation_store.rs @@ -1,8 +1,10 @@ //! Server-side event route store for mapping event IDs to client routes. use std::collections::{HashMap, HashSet}; +use std::num::NonZeroUsize; use std::sync::Arc; +use lru::LruCache; use tokio::sync::RwLock; /// A route entry for an in-flight request. @@ -18,8 +20,8 @@ pub struct RouteEntry { /// Internal state behind the lock. struct Inner { - /// Primary index: event_id → route entry. - routes: HashMap, + /// Primary index: event_id → route entry (LRU-ordered). + routes: LruCache, /// Secondary index: progress_token → event_id. progress_token_to_event: HashMap, /// Secondary index: client_pubkey → set of event_ids. @@ -27,36 +29,43 @@ struct Inner { } impl Inner { - fn new() -> Self { + fn new(max_routes: Option) -> Self { + let routes = match max_routes { + Some(n) => LruCache::new(NonZeroUsize::new(n).expect("max_routes must be non-zero")), + None => LruCache::unbounded(), + }; Self { - routes: HashMap::new(), + routes, progress_token_to_event: HashMap::new(), client_event_ids: HashMap::new(), } } - /// Remove a single route and clean up all secondary indexes. - fn remove_route(&mut self, event_id: &str) -> Option { - let route = self.routes.remove(event_id)?; - - // Clean up progress token index. + /// Clean up secondary indexes for a removed route. + fn cleanup_indexes(&mut self, event_id: &str, route: &RouteEntry) { if let Some(ref token) = route.progress_token { self.progress_token_to_event.remove(token); } - - // Clean up client index. if let Some(set) = self.client_event_ids.get_mut(&route.client_pubkey) { set.remove(event_id); if set.is_empty() { self.client_event_ids.remove(&route.client_pubkey); } } + } + /// Remove a single route and clean up all secondary indexes. + fn remove_route(&mut self, event_id: &str) -> Option { + let route = self.routes.pop(event_id)?; + self.cleanup_indexes(event_id, &route); Some(route) } } /// Maps event IDs to full route entries for response routing on the server side. +/// +/// An optional capacity limit enables LRU eviction; when the limit is reached +/// the oldest entry is evicted and its secondary indexes are cleaned up. #[derive(Clone)] pub struct ServerEventRouteStore { inner: Arc>, @@ -71,7 +80,15 @@ impl Default for ServerEventRouteStore { impl ServerEventRouteStore { pub fn new() -> Self { Self { - inner: Arc::new(RwLock::new(Inner::new())), + inner: Arc::new(RwLock::new(Inner::new(None))), + } + } + + /// Create a store with an upper bound on event routes. + /// When the limit is reached the oldest entry is evicted. + pub fn with_max_routes(max_routes: usize) -> Self { + Self { + inner: Arc::new(RwLock::new(Inner::new(Some(max_routes)))), } } @@ -99,14 +116,22 @@ impl ServerEventRouteStore { .insert(token.clone(), event_id.clone()); } - inner.routes.insert( - event_id, + // Insert into LRU; handle possible eviction. + let evicted = inner.routes.push( + event_id.clone(), RouteEntry { client_pubkey, original_request_id, progress_token, }, ); + + if let Some((evicted_key, evicted_route)) = evicted { + if evicted_key != event_id { + // A different entry was evicted due to capacity — clean up its indexes. + inner.cleanup_indexes(&evicted_key, &evicted_route); + } + } } /// Returns the client public key for the given event ID without removing it. @@ -115,13 +140,13 @@ impl ServerEventRouteStore { .read() .await .routes - .get(event_id) + .peek(event_id) .map(|r| r.client_pubkey.clone()) } /// Returns the full route entry for the given event ID without removing it. pub async fn get_route(&self, event_id: &str) -> Option { - self.inner.read().await.routes.get(event_id).cloned() + self.inner.read().await.routes.peek(event_id).cloned() } /// Removes and returns the full route entry for the given event ID. @@ -140,7 +165,7 @@ impl ServerEventRouteStore { let count = event_ids.len(); for event_id in &event_ids { - if let Some(route) = inner.routes.remove(event_id.as_str()) { + if let Some(route) = inner.routes.pop(event_id.as_str()) { if let Some(ref token) = route.progress_token { inner.progress_token_to_event.remove(token); } @@ -151,7 +176,7 @@ impl ServerEventRouteStore { /// Check whether a route exists for the given event ID. pub async fn has_event_route(&self, event_id: &str) -> bool { - self.inner.read().await.routes.contains_key(event_id) + self.inner.read().await.routes.contains(event_id) } /// Check whether the given client has any active routes. diff --git a/tests/conformance_stores.rs b/tests/conformance_stores.rs index 0aa659f..55917ec 100644 --- a/tests/conformance_stores.rs +++ b/tests/conformance_stores.rs @@ -4,8 +4,6 @@ //! - `src/transport/nostr-client/correlation-store.test.ts` //! - `src/transport/nostr-server/session-store.test.ts` //! - `src/transport/nostr-server/correlation-store.test.ts` -//! -//! LRU eviction tests are deferred — only non-eviction tests are ported here. use contextvm_sdk::{ClientCorrelationStore, ServerEventRouteStore, SessionStore}; use serde_json::json; @@ -22,14 +20,18 @@ mod client_correlation_store { #[tokio::test] async fn stores_request_with_event_id() { let store = ClientCorrelationStore::new(); - store.register("event123".into(), json!("req1")).await; + store + .register("event123".into(), json!("req1"), false) + .await; assert!(store.contains("event123").await); } #[tokio::test] async fn stores_and_resolves_original_request_id() { let store = ClientCorrelationStore::new(); - store.register("event456".into(), json!("req2")).await; + store + .register("event456".into(), json!("req2"), false) + .await; // Retrieve the stored original ID. let original = store.get_original_id("event456").await.unwrap(); @@ -40,12 +42,23 @@ mod client_correlation_store { assert!(store.get_original_id("event456").await.is_none()); } + #[tokio::test] + async fn register_request_flags_initialize_requests() { + let store = ClientCorrelationStore::new(); + store.register("e_init".into(), json!("r1"), true).await; + store.register("e_normal".into(), json!("r2"), false).await; + + assert!(store.is_initialize_request("e_init").await); + assert!(!store.is_initialize_request("e_normal").await); + assert!(!store.is_initialize_request("unknown").await); + } + // ── resolveResponse (get_original_id + remove) ──────────────── #[tokio::test] async fn restores_original_request_id() { let store = ClientCorrelationStore::new(); - store.register("event789".into(), json!(42)).await; + store.register("event789".into(), json!(42), false).await; let original = store.get_original_id("event789").await.unwrap(); assert_eq!(original, json!(42)); } @@ -59,7 +72,7 @@ mod client_correlation_store { #[tokio::test] async fn get_and_remove_roundtrip() { let store = ClientCorrelationStore::new(); - store.register("event1".into(), json!("req1")).await; + store.register("event1".into(), json!("req1"), false).await; // Lookup succeeds before removal. let original = store.get_original_id("event1").await.unwrap(); @@ -76,7 +89,7 @@ mod client_correlation_store { #[tokio::test] async fn removes_existing_request() { let store = ClientCorrelationStore::new(); - store.register("event1".into(), json!(null)).await; + store.register("event1".into(), json!(null), false).await; assert!(store.remove("event1").await); assert!(!store.contains("event1").await); } @@ -92,11 +105,30 @@ mod client_correlation_store { #[tokio::test] async fn removes_all_pending_requests() { let store = ClientCorrelationStore::new(); - store.register("event1".into(), json!(null)).await; - store.register("event2".into(), json!(null)).await; + store.register("event1".into(), json!(null), false).await; + store.register("event2".into(), json!(null), false).await; store.clear().await; assert_eq!(store.count().await, 0); } + + // ── LRU eviction (TS SDK client test 9) ─────────────────────── + + #[tokio::test] + async fn evicts_oldest_when_capacity_reached() { + let store = ClientCorrelationStore::with_max_pending(2); + for i in 0..5 { + store + .register(format!("event{i}"), json!(null), false) + .await; + } + assert_eq!(store.count().await, 2); + // Only the two most recent entries survive. + assert!(!store.contains("event0").await); + assert!(!store.contains("event1").await); + assert!(!store.contains("event2").await); + assert!(store.contains("event3").await); + assert!(store.contains("event4").await); + } } // ════════════════════════════════════════════════════════════════════ @@ -722,4 +754,66 @@ mod server_correlation_store { assert!(store.has_active_routes_for_client("c1").await); assert!(store.has_active_routes_for_client("c2").await); } + + // ── LRU eviction (TS SDK server tests 28–30) ───────────────── + + #[tokio::test] + async fn evicts_oldest_route_when_capacity_reached() { + let store = ServerEventRouteStore::with_max_routes(2); + + store + .register("event1".into(), "client1".into(), json!("req1"), None) + .await; + store + .register("event2".into(), "client1".into(), json!("req2"), None) + .await; + store + .register("event3".into(), "client1".into(), json!("req3"), None) + .await; + + // event1 should have been evicted. + assert!(!store.has_event_route("event1").await); + assert_eq!(store.event_route_count().await, 2); + } + + #[tokio::test] + async fn cleans_up_progress_tokens_on_eviction() { + let store = ServerEventRouteStore::with_max_routes(1); + + store + .register( + "event1".into(), + "client1".into(), + json!("req1"), + Some("token1".into()), + ) + .await; + store + .register( + "event2".into(), + "client1".into(), + json!("req2"), + Some("token2".into()), + ) + .await; + + assert!(!store.has_progress_token("token1").await); + assert!(store.has_progress_token("token2").await); + } + + #[tokio::test] + async fn cleans_up_client_index_on_eviction() { + let store = ServerEventRouteStore::with_max_routes(1); + + store + .register("event1".into(), "client1".into(), json!("req1"), None) + .await; + store + .register("event2".into(), "client2".into(), json!("req2"), None) + .await; + + // client1's only route was evicted. + assert!(!store.has_active_routes_for_client("client1").await); + assert!(store.has_active_routes_for_client("client2").await); + } } From e5ccd48ede71635617a9b9b6376c2ef9795fd25d Mon Sep 17 00:00:00 2001 From: Harsh Date: Sun, 26 Apr 2026 07:01:00 +0530 Subject: [PATCH 046/116] test: port remaining integration and stateless mode tests, closing all TS SDK parity gaps --- tests/conformance_stateless_mode.rs | 26 +- tests/transport_integration.rs | 1200 ++++++++++++++++++++++++++- 2 files changed, 1222 insertions(+), 4 deletions(-) diff --git a/tests/conformance_stateless_mode.rs b/tests/conformance_stateless_mode.rs index 54b633b..a1a0a3c 100644 --- a/tests/conformance_stateless_mode.rs +++ b/tests/conformance_stateless_mode.rs @@ -3,7 +3,9 @@ use std::time::Duration; use contextvm_sdk::core::constants::{mcp_protocol_version, INITIALIZE_METHOD}; -use contextvm_sdk::core::types::{EncryptionMode, JsonRpcMessage, JsonRpcRequest}; +use contextvm_sdk::core::types::{ + EncryptionMode, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, +}; use contextvm_sdk::signer; use contextvm_sdk::transport::client::{NostrClientTransport, NostrClientTransportConfig}; use tokio::time::timeout; @@ -169,3 +171,25 @@ async fn should_handle_statelessly_returns_false_for_other_methods() { "non-initialize request should not create a local emulated response" ); } + +#[tokio::test] +async fn notifications_initialized_swallowed_in_stateless_mode() { + let (transport, mut rx) = make_stateless_transport().await; + + let notification = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/initialized".to_string(), + params: None, + }); + + transport + .send(¬ification) + .await + .expect("notifications/initialized should be accepted in stateless mode"); + + let recv_result = timeout(Duration::from_millis(200), rx.recv()).await; + assert!( + recv_result.is_err(), + "notifications/initialized must be swallowed in stateless mode" + ); +} diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index c577b79..fede992 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -9,15 +9,16 @@ use std::sync::Arc; use std::time::Duration; use contextvm_sdk::core::constants::{ - mcp_protocol_version, GIFT_WRAP_KIND, SERVER_ANNOUNCEMENT_KIND, + mcp_protocol_version, CTXVM_MESSAGES_KIND, GIFT_WRAP_KIND, PROMPTS_LIST_KIND, + RESOURCES_LIST_KIND, RESOURCETEMPLATES_LIST_KIND, SERVER_ANNOUNCEMENT_KIND, TOOLS_LIST_KIND, }; use contextvm_sdk::core::types::EncryptionMode; use contextvm_sdk::relay::mock::MockRelayPool; use contextvm_sdk::transport::client::{NostrClientTransport, NostrClientTransportConfig}; use contextvm_sdk::transport::server::{NostrServerTransport, NostrServerTransportConfig}; use contextvm_sdk::{ - JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, RelayPoolTrait, - ServerInfo, + CapabilityExclusion, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, + RelayPoolTrait, ServerInfo, }; use nostr_sdk::prelude::*; @@ -601,3 +602,1196 @@ async fn correlated_notification_has_e_tag() { "notification event must have e tag referencing the original request event id" ); } + +// ── 9. Encryption Required client, Optional server ────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn encryption_required_client_optional_server() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Optional, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Required, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("enc-opt-1"), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send encrypted request"); + + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout waiting for server to receive encrypted request") + .expect("server channel closed"); + + assert_eq!( + incoming.message.method(), + Some("tools/list"), + "Optional-mode server must accept encrypted messages from Required-mode client" + ); + assert!( + incoming.is_encrypted, + "message from Required-mode client must be marked encrypted" + ); +} + +// ── 10. Encryption Optional both sides, encrypted path ────────────────────── +// Optional client defaults to encrypting (unwrap_or(true)), Optional server +// accepts encrypted messages. Tests the Optional/Optional negotiation path. + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn encryption_optional_both_sides_encrypted_path() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Optional, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Optional, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("opt-both-1"), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send request"); + + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout waiting for server to receive request") + .expect("server channel closed"); + + assert_eq!(incoming.message.method(), Some("tools/list")); + assert!( + incoming.is_encrypted, + "Optional client defaults to encrypting; Optional server must accept" + ); +} + +// ── 11. Announce includes encryption tags ──────────────────────────────────── + +#[tokio::test] +async fn announce_includes_encryption_tags() { + let pool = Arc::new(MockRelayPool::new()); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + is_announced_server: true, + server_info: Some(ServerInfo { + name: Some("Encrypted-Server".to_string()), + ..Default::default() + }), + encryption_mode: EncryptionMode::Required, + ..Default::default() + }, + Arc::clone(&pool) as Arc, + ) + .await + .expect("create server transport"); + + server.start().await.expect("server start"); + server.announce().await.expect("server announce"); + + let events = pool.stored_events().await; + let announcement = events + .iter() + .find(|e| e.kind == Kind::Custom(SERVER_ANNOUNCEMENT_KIND)) + .expect("kind 11316 event must be published"); + + // support_encryption is a valueless tag — check tag name directly. + let has_support_encryption = announcement + .tags + .iter() + .any(|t| t.clone().to_vec().first().map(|s| s.as_str()) == Some("support_encryption")); + let has_support_encryption_ephemeral = announcement.tags.iter().any(|t| { + t.clone().to_vec().first().map(|s| s.as_str()) == Some("support_encryption_ephemeral") + }); + + assert!( + has_support_encryption, + "announcement must include support_encryption tag" + ); + assert!( + has_support_encryption_ephemeral, + "announcement must include support_encryption_ephemeral tag" + ); +} + +// ── 12. Announce includes server metadata tags ────────────────────────────── + +#[tokio::test] +async fn announce_includes_server_metadata_tags() { + let pool = Arc::new(MockRelayPool::new()); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + is_announced_server: true, + server_info: Some(ServerInfo { + name: Some("Meta-Server".to_string()), + about: Some("A test server".to_string()), + website: Some("https://example.com".to_string()), + picture: Some("https://example.com/pic.png".to_string()), + ..Default::default() + }), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + Arc::clone(&pool) as Arc, + ) + .await + .expect("create server transport"); + + server.start().await.expect("server start"); + server.announce().await.expect("server announce"); + + let events = pool.stored_events().await; + let announcement = events + .iter() + .find(|e| e.kind == Kind::Custom(SERVER_ANNOUNCEMENT_KIND)) + .expect("kind 11316 event must be published"); + + let name_tag = contextvm_sdk::core::serializers::get_tag_value(&announcement.tags, "name"); + let about_tag = contextvm_sdk::core::serializers::get_tag_value(&announcement.tags, "about"); + let website_tag = + contextvm_sdk::core::serializers::get_tag_value(&announcement.tags, "website"); + let picture_tag = + contextvm_sdk::core::serializers::get_tag_value(&announcement.tags, "picture"); + + assert_eq!( + name_tag.as_deref(), + Some("Meta-Server"), + "name tag must be present" + ); + assert_eq!( + about_tag.as_deref(), + Some("A test server"), + "about tag must be present" + ); + assert_eq!( + website_tag.as_deref(), + Some("https://example.com"), + "website tag must be present" + ); + assert_eq!( + picture_tag.as_deref(), + Some("https://example.com/pic.png"), + "picture tag must be present" + ); +} + +// ── 13. Publish tools produces correct kind ───────────────────────────────── + +#[tokio::test] +async fn publish_tools_produces_correct_kind() { + let pool = Arc::new(MockRelayPool::new()); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + is_announced_server: true, + server_info: Some(ServerInfo { + name: Some("Tools-Server".to_string()), + ..Default::default() + }), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + Arc::clone(&pool) as Arc, + ) + .await + .expect("create server transport"); + + server.start().await.expect("server start"); + server.announce().await.expect("server announce"); + + let tools = vec![serde_json::json!({ + "name": "get_weather", + "description": "Get the weather", + "inputSchema": { "type": "object" } + })]; + server.publish_tools(tools).await.expect("publish tools"); + + let events = pool.stored_events().await; + let tools_event = events + .iter() + .find(|e| e.kind == Kind::Custom(TOOLS_LIST_KIND)) + .expect("kind 11317 event must be published"); + + let content: serde_json::Value = + serde_json::from_str(&tools_event.content).expect("tools content must be JSON"); + assert!( + content.get("tools").is_some(), + "tools event content must contain 'tools' key" + ); + let tools_arr = content["tools"].as_array().expect("tools must be an array"); + assert_eq!(tools_arr.len(), 1); + assert_eq!(tools_arr[0]["name"], "get_weather"); +} + +// ── 14. Broadcast notification reaches initialized client ───────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn broadcast_notification_reaches_initialized_client() { + let (c1_pool, s_pool) = MockRelayPool::create_pair(); + let server_pk = s_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(s_pool), + ) + .await + .expect("create server transport"); + + let mut srv_rx = server + .take_message_receiver() + .expect("server message receiver"); + server.start().await.expect("server start"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pk.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(c1_pool), + ) + .await + .expect("create client transport"); + let mut c_rx = client + .take_message_receiver() + .expect("client message receiver"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Client sends initialize request. + let init_req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: Some(serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "capabilities": {}, + "clientInfo": { "name": "c1", "version": "0.0.0" } + })), + }); + client + .send(&init_req) + .await + .expect("client send initialize"); + + let incoming = tokio::time::timeout(Duration::from_millis(500), srv_rx.recv()) + .await + .expect("timeout") + .expect("channel closed"); + + // Server responds to initialize. + let init_resp = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + result: serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "serverInfo": { "name": "test-server", "version": "0.0.0" }, + "capabilities": {} + }), + }); + server + .send_response(&incoming.event_id, init_resp) + .await + .expect("send init response"); + + // Client receives the init response. + let _ = tokio::time::timeout(Duration::from_millis(500), c_rx.recv()) + .await + .expect("timeout") + .expect("channel closed"); + + // Client sends notifications/initialized → session becomes initialized. + let init_notif = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/initialized".to_string(), + params: None, + }); + client + .send(&init_notif) + .await + .expect("send initialized notification"); + + // Drain srv_rx until we see notifications/initialized (skipping any + // echoed events from the shared mock relay broadcast channel). + loop { + let msg = tokio::time::timeout(Duration::from_millis(500), srv_rx.recv()) + .await + .expect("timeout waiting for notifications/initialized on server") + .expect("server channel closed"); + if msg.message.method() == Some("notifications/initialized") { + break; + } + } + + // Now broadcast — only the initialized client session should receive it. + let broadcast = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: Some(serde_json::json!({ "progressToken": "bc-1", "progress": 1, "total": 1 })), + }); + server + .broadcast_notification(&broadcast) + .await + .expect("broadcast notification"); + + let msg = tokio::time::timeout(Duration::from_millis(500), c_rx.recv()) + .await + .expect("timeout waiting for client to receive broadcast") + .expect("client channel closed"); + + assert_eq!(msg.method(), Some("notifications/progress")); +} + +// ── 15. Uncorrelated notification passes through ──────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn uncorrelated_notification_passes_through() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + let mut client_rx = client + .take_message_receiver() + .expect("client message receiver"); + + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + let init_req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("unc-init"), + method: "initialize".to_string(), + params: Some(serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "capabilities": {}, + "clientInfo": { "name": "unc-test", "version": "0.0.0" } + })), + }); + client.send(&init_req).await.expect("send initialize"); + + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout") + .expect("channel closed"); + + let init_resp = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("unc-init"), + result: serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "serverInfo": { "name": "test", "version": "0.0.0" }, + "capabilities": {} + }), + }); + server + .send_response(&incoming.event_id, init_resp) + .await + .expect("send init response"); + + let _ = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .expect("timeout") + .expect("channel closed"); + + // Uncorrelated notification (no e tag) must pass through to client. + let notification = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: Some(serde_json::json!({ "progressToken": "unc-1", "progress": 50, "total": 100 })), + }); + server + .send_notification(&incoming.client_pubkey, ¬ification, None) + .await + .expect("send uncorrelated notification"); + + let client_msg = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .expect("timeout waiting for client to receive notification") + .expect("client channel closed"); + + assert!(client_msg.is_notification()); + assert_eq!(client_msg.method(), Some("notifications/progress")); +} + +// ── 16. Correlated notification with unknown e tag is dropped ─────────────── +// NOTE: The Rust SDK drops ANY server event whose e-tag references an unknown +// pending request, including notifications. The TS SDK may forward such events. +// This test documents the Rust SDK's stricter correlation enforcement. + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn correlated_notification_unknown_e_tag_is_dropped() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + let mut client_rx = client + .take_message_receiver() + .expect("client message receiver"); + + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + let init_req = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("corr-init"), + method: "initialize".to_string(), + params: Some(serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "capabilities": {}, + "clientInfo": { "name": "corr-test", "version": "0.0.0" } + })), + }); + client.send(&init_req).await.expect("send initialize"); + + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout") + .expect("channel closed"); + + let init_resp = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("corr-init"), + result: serde_json::json!({ + "protocolVersion": mcp_protocol_version(), + "serverInfo": { "name": "test", "version": "0.0.0" }, + "capabilities": {} + }), + }); + server + .send_response(&incoming.event_id, init_resp) + .await + .expect("send init response"); + + let _ = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .expect("timeout") + .expect("channel closed"); + + // Notification with e tag referencing unknown event id must be dropped. + let fake_event_id = "a".repeat(64); + let notification = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: Some(serde_json::json!({ "progressToken": "fake", "progress": 1, "total": 1 })), + }); + server + .send_notification(&incoming.client_pubkey, ¬ification, Some(&fake_event_id)) + .await + .expect("send notification with unknown e tag"); + + let result = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()).await; + assert!( + result.is_err(), + "notification with unknown e tag must be dropped by client" + ); +} + +// ── 17. Auth: allowed pubkey receives response ────────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn auth_allowed_pubkey_receives_response() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let client_pubkey = client_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + allowed_public_keys: vec![client_pubkey.to_hex()], + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + server.start().await.expect("server start"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut client_rx = client + .take_message_receiver() + .expect("client message receiver"); + + client.start().await.expect("client start"); + let_event_loops_start().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("auth-1"), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send request"); + + // Server should receive it (pubkey is in the allowlist). + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout waiting for server to receive request") + .expect("server channel closed"); + + assert_eq!(incoming.message.method(), Some("tools/list")); + + // Server sends response back. + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("auth-1"), + result: serde_json::json!({ "tools": [] }), + }); + server + .send_response(&incoming.event_id, response) + .await + .expect("send response"); + + // Client should receive the response. + let client_msg = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .expect("timeout waiting for client to receive response") + .expect("client channel closed"); + + assert!(client_msg.is_response()); + assert_eq!(client_msg.id(), Some(&serde_json::json!("auth-1"))); +} + +// ── 18. Excluded capability bypasses auth ─────────────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn excluded_capability_bypasses_auth() { + let allowed_keys = Keys::generate(); // a DIFFERENT pubkey, NOT the client + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + allowed_public_keys: vec![allowed_keys.public_key().to_hex()], + excluded_capabilities: vec![CapabilityExclusion { + method: "tools/list".to_string(), + name: None, + }], + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + server.start().await.expect("server start"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Client's pubkey is NOT in the allowlist, but "tools/list" is excluded from auth. + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("excl-1"), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send request"); + + // Server should receive it because the method is in excluded_capabilities. + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout waiting for server to receive excluded-capability request") + .expect("server channel closed"); + + assert_eq!( + incoming.message.method(), + Some("tools/list"), + "excluded capability must bypass auth allowlist" + ); +} + +// ── 19. Publish resources produces correct kind ───────────────────────────── + +#[tokio::test] +async fn publish_resources_produces_correct_kind() { + let pool = Arc::new(MockRelayPool::new()); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + Arc::clone(&pool) as Arc, + ) + .await + .expect("create server transport"); + + server.start().await.expect("server start"); + + let resources = vec![serde_json::json!({ + "uri": "file:///readme.md", + "name": "readme", + "mimeType": "text/markdown" + })]; + server + .publish_resources(resources) + .await + .expect("publish resources"); + + let events = pool.stored_events().await; + let event = events + .iter() + .find(|e| e.kind == Kind::Custom(RESOURCES_LIST_KIND)) + .expect("kind 11318 event must be published"); + + let content: serde_json::Value = + serde_json::from_str(&event.content).expect("content must be JSON"); + let arr = content["resources"] + .as_array() + .expect("resources must be an array"); + assert_eq!(arr.len(), 1); + assert_eq!(arr[0]["name"], "readme"); +} + +// ── 20. Publish prompts produces correct kind ─────────────────────────────── + +#[tokio::test] +async fn publish_prompts_produces_correct_kind() { + let pool = Arc::new(MockRelayPool::new()); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + Arc::clone(&pool) as Arc, + ) + .await + .expect("create server transport"); + + server.start().await.expect("server start"); + + let prompts = vec![serde_json::json!({ + "name": "summarize", + "description": "Summarize text" + })]; + server + .publish_prompts(prompts) + .await + .expect("publish prompts"); + + let events = pool.stored_events().await; + let event = events + .iter() + .find(|e| e.kind == Kind::Custom(PROMPTS_LIST_KIND)) + .expect("kind 11320 event must be published"); + + let content: serde_json::Value = + serde_json::from_str(&event.content).expect("content must be JSON"); + let arr = content["prompts"] + .as_array() + .expect("prompts must be an array"); + assert_eq!(arr.len(), 1); + assert_eq!(arr[0]["name"], "summarize"); +} + +// ── 21. Publish resource templates produces correct kind ──────────────────── + +#[tokio::test] +async fn publish_resource_templates_produces_correct_kind() { + let pool = Arc::new(MockRelayPool::new()); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + Arc::clone(&pool) as Arc, + ) + .await + .expect("create server transport"); + + server.start().await.expect("server start"); + + let templates = vec![serde_json::json!({ + "uriTemplate": "file:///{path}", + "name": "file", + "mimeType": "application/octet-stream" + })]; + server + .publish_resource_templates(templates) + .await + .expect("publish resource templates"); + + let events = pool.stored_events().await; + let event = events + .iter() + .find(|e| e.kind == Kind::Custom(RESOURCETEMPLATES_LIST_KIND)) + .expect("kind 11319 event must be published"); + + let content: serde_json::Value = + serde_json::from_str(&event.content).expect("content must be JSON"); + let arr = content["resourceTemplates"] + .as_array() + .expect("resourceTemplates must be an array"); + assert_eq!(arr.len(), 1); + assert_eq!(arr[0]["name"], "file"); +} + +// ── 22. Publish tools with empty list ─────────────────────────────────────── + +#[tokio::test] +async fn publish_tools_empty_list() { + let pool = Arc::new(MockRelayPool::new()); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + Arc::clone(&pool) as Arc, + ) + .await + .expect("create server transport"); + + server.start().await.expect("server start"); + server + .publish_tools(vec![]) + .await + .expect("publish empty tools"); + + let events = pool.stored_events().await; + let event = events + .iter() + .find(|e| e.kind == Kind::Custom(TOOLS_LIST_KIND)) + .expect("kind 11317 event must be published for empty list"); + + let content: serde_json::Value = + serde_json::from_str(&event.content).expect("content must be JSON"); + let arr = content["tools"].as_array().expect("tools must be an array"); + assert!(arr.is_empty(), "empty tools list must produce tools: []"); +} + +// ── 23. Delete announcements k tags match kinds ───────────────────────────── + +#[tokio::test] +async fn delete_announcements_k_tags_match_kinds() { + let pool = Arc::new(MockRelayPool::new()); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + is_announced_server: true, + server_info: Some(ServerInfo { + name: Some("KTag-Server".to_string()), + ..Default::default() + }), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + Arc::clone(&pool) as Arc, + ) + .await + .expect("create server transport"); + + server.start().await.expect("server start"); + server.announce().await.expect("server announce"); + server + .delete_announcements("shutting down") + .await + .expect("delete announcements"); + + let events = pool.stored_events().await; + let kind5_events: Vec<_> = events + .iter() + .filter(|e| e.kind == Kind::Custom(5)) + .collect(); + + assert_eq!(kind5_events.len(), 5); + + // Collect k tag values from all kind-5 events. + let mut k_values: Vec = kind5_events + .iter() + .filter_map(|e| { + contextvm_sdk::core::serializers::get_tag_value(&e.tags, "k") + .and_then(|v| v.parse::().ok()) + }) + .collect(); + k_values.sort(); + + let mut expected = vec![ + SERVER_ANNOUNCEMENT_KIND, + TOOLS_LIST_KIND, + RESOURCES_LIST_KIND, + RESOURCETEMPLATES_LIST_KIND, + PROMPTS_LIST_KIND, + ]; + expected.sort(); + + assert_eq!( + k_values, expected, + "each kind-5 event must have a k tag matching one announcement kind" + ); +} + +// ── 24. Encryption Disabled server rejects gift-wrap ──────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn encryption_disabled_server_rejects_gift_wrap() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + // Server has encryption disabled — must reject gift-wrap events. + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + server.start().await.expect("server start"); + + // Client requires encryption — sends gift-wrap (kind 1059). + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Required, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + client.start().await.expect("client start"); + let_event_loops_start().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("gw-reject"), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send encrypted request"); + + let result = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()).await; + assert!( + result.is_err(), + "Disabled-mode server must drop gift-wrap events" + ); +} + +// ── 25. Response mirrors client encryption format ─────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn response_mirrors_client_encryption_format() { + // Part A: Disabled client → Optional server → response must be plaintext (kind 25910). + { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Optional, + ..Default::default() + }, + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + let mut client_rx = client + .take_message_receiver() + .expect("client message receiver"); + + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("mirror-plain"), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send plaintext request"); + + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout") + .expect("channel closed"); + assert!(!incoming.is_encrypted); + + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("mirror-plain"), + result: serde_json::json!({ "tools": [] }), + }); + server + .send_response(&incoming.event_id, response) + .await + .expect("send plaintext response"); + + // Client receives the response. + let _ = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .expect("timeout") + .expect("channel closed"); + + // Verify response event is plaintext kind 25910, not gift-wrap. + let events = server_pool.stored_events().await; + let response_events: Vec<_> = events + .iter() + .filter(|e| e.pubkey == server_pubkey && e.content.contains("mirror-plain")) + .collect(); + assert!( + !response_events.is_empty(), + "server must publish a response event" + ); + assert!( + response_events + .iter() + .all(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND)), + "response to plaintext client must be kind {} (plaintext)", + CTXVM_MESSAGES_KIND + ); + } + + // Part B: Required client → Optional server → response must be gift-wrap (kind 1059). + { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Optional, + ..Default::default() + }, + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Required, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + let mut client_rx = client + .take_message_receiver() + .expect("client message receiver"); + + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("mirror-enc"), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send encrypted request"); + + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout") + .expect("channel closed"); + assert!(incoming.is_encrypted); + + // Snapshot gift-wrap count before server responds. + let gw_before = server_pool + .stored_events() + .await + .iter() + .filter(|e| e.kind == Kind::Custom(GIFT_WRAP_KIND)) + .count(); + + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("mirror-enc"), + result: serde_json::json!({ "tools": [] }), + }); + server + .send_response(&incoming.event_id, response) + .await + .expect("send encrypted response"); + + // Client receives the response. + let _ = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .expect("timeout") + .expect("channel closed"); + + // Verify server published exactly one new gift-wrap for the response. + let gw_after = server_pool + .stored_events() + .await + .iter() + .filter(|e| e.kind == Kind::Custom(GIFT_WRAP_KIND)) + .count(); + assert_eq!( + gw_after, + gw_before + 1, + "server must publish one new gift-wrap (kind {}) as the response", + GIFT_WRAP_KIND + ); + } +} From 96963db87b3f618406921c8a870d3047759c7c49 Mon Sep 17 00:00:00 2001 From: Kushagra Date: Sun, 26 Apr 2026 11:48:45 +0530 Subject: [PATCH 047/116] fix(lru): unbounded LRU cache initialisation --- src/transport/client/correlation_store.rs | 20 +++++++++++++--- src/transport/server/correlation_store.rs | 28 +++++++++++++++++------ 2 files changed, 38 insertions(+), 10 deletions(-) diff --git a/src/transport/client/correlation_store.rs b/src/transport/client/correlation_store.rs index 924e283..858b37a 100644 --- a/src/transport/client/correlation_store.rs +++ b/src/transport/client/correlation_store.rs @@ -6,6 +6,8 @@ use std::sync::Arc; use lru::LruCache; use tokio::sync::RwLock; +use crate::core::constants::DEFAULT_LRU_SIZE; + /// A pending request tracked by the correlation store. #[derive(Debug, Clone)] pub struct PendingRequest { @@ -32,9 +34,7 @@ impl Default for ClientCorrelationStore { impl ClientCorrelationStore { pub fn new() -> Self { - Self { - pending_requests: Arc::new(RwLock::new(LruCache::unbounded())), - } + Self::with_max_pending(DEFAULT_LRU_SIZE) } /// Create a store with an upper bound on pending requests. @@ -136,4 +136,18 @@ mod tests { assert!(store.remove("e1").await); assert!(!store.contains("e1").await); } + + #[tokio::test] + async fn default_store_is_bounded() { + let store = ClientCorrelationStore::new(); + for i in 0..=DEFAULT_LRU_SIZE { + store + .register(format!("e{i}"), serde_json::Value::Null, false) + .await; + } + + assert_eq!(store.count().await, DEFAULT_LRU_SIZE); + assert!(!store.contains("e0").await); + assert!(store.contains(&format!("e{DEFAULT_LRU_SIZE}")).await); + } } diff --git a/src/transport/server/correlation_store.rs b/src/transport/server/correlation_store.rs index 09fd16e..3d8509e 100644 --- a/src/transport/server/correlation_store.rs +++ b/src/transport/server/correlation_store.rs @@ -7,6 +7,8 @@ use std::sync::Arc; use lru::LruCache; use tokio::sync::RwLock; +use crate::core::constants::DEFAULT_LRU_SIZE; + /// A route entry for an in-flight request. #[derive(Debug, Clone)] pub struct RouteEntry { @@ -29,11 +31,9 @@ struct Inner { } impl Inner { - fn new(max_routes: Option) -> Self { - let routes = match max_routes { - Some(n) => LruCache::new(NonZeroUsize::new(n).expect("max_routes must be non-zero")), - None => LruCache::unbounded(), - }; + fn new(max_routes: usize) -> Self { + let routes = + LruCache::new(NonZeroUsize::new(max_routes).expect("max_routes must be non-zero")); Self { routes, progress_token_to_event: HashMap::new(), @@ -80,7 +80,7 @@ impl Default for ServerEventRouteStore { impl ServerEventRouteStore { pub fn new() -> Self { Self { - inner: Arc::new(RwLock::new(Inner::new(None))), + inner: Arc::new(RwLock::new(Inner::new(DEFAULT_LRU_SIZE))), } } @@ -88,7 +88,7 @@ impl ServerEventRouteStore { /// When the limit is reached the oldest entry is evicted. pub fn with_max_routes(max_routes: usize) -> Self { Self { - inner: Arc::new(RwLock::new(Inner::new(Some(max_routes)))), + inner: Arc::new(RwLock::new(Inner::new(max_routes))), } } @@ -303,4 +303,18 @@ mod tests { assert!(store.get("e1").await.is_none()); assert!(store.get("e2").await.is_none()); } + + #[tokio::test] + async fn default_store_is_bounded() { + let store = ServerEventRouteStore::new(); + for i in 0..=DEFAULT_LRU_SIZE { + store + .register(format!("e{i}"), "pk1".into(), json!(i), None) + .await; + } + + assert_eq!(store.event_route_count().await, DEFAULT_LRU_SIZE); + assert!(!store.has_event_route("e0").await); + assert!(store.has_event_route(&format!("e{DEFAULT_LRU_SIZE}")).await); + } } From 350d5696bcf042db1c8f5e06bc66ae03625280fa Mon Sep 17 00:00:00 2001 From: ContextVM-org Date: Tue, 28 Apr 2026 16:47:56 +0100 Subject: [PATCH 048/116] test: add GiftWrapMode import to stateless mode conformance test --- tests/conformance_stateless_mode.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tests/conformance_stateless_mode.rs b/tests/conformance_stateless_mode.rs index e1c0310..7cb420e 100644 --- a/tests/conformance_stateless_mode.rs +++ b/tests/conformance_stateless_mode.rs @@ -6,7 +6,7 @@ use contextvm_sdk::core::constants::{mcp_protocol_version, INITIALIZE_METHOD}; use contextvm_sdk::core::types::{ EncryptionMode, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, }; -use contextvm_sdk::signer; +use contextvm_sdk::{GiftWrapMode, signer}; use contextvm_sdk::transport::client::{NostrClientTransport, NostrClientTransportConfig}; use tokio::time::timeout; From 98d9fd4ec03001bae67b85b8ee868138c14036c7 Mon Sep 17 00:00:00 2001 From: ContextVM Date: Tue, 28 Apr 2026 17:32:52 +0100 Subject: [PATCH 049/116] style: reorder import statements alphabetically --- tests/conformance_stateless_mode.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tests/conformance_stateless_mode.rs b/tests/conformance_stateless_mode.rs index 7cb420e..9999e23 100644 --- a/tests/conformance_stateless_mode.rs +++ b/tests/conformance_stateless_mode.rs @@ -6,8 +6,8 @@ use contextvm_sdk::core::constants::{mcp_protocol_version, INITIALIZE_METHOD}; use contextvm_sdk::core::types::{ EncryptionMode, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, }; -use contextvm_sdk::{GiftWrapMode, signer}; use contextvm_sdk::transport::client::{NostrClientTransport, NostrClientTransportConfig}; +use contextvm_sdk::{signer, GiftWrapMode}; use tokio::time::timeout; async fn make_stateless_transport() -> ( From 7413e108f5faff11da4f884597dcea9b421a985c Mon Sep 17 00:00:00 2001 From: ContextVM Date: Wed, 29 Apr 2026 12:28:06 +0100 Subject: [PATCH 050/116] format --- sdk | 1 + tests/transport_integration.rs | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) create mode 160000 sdk diff --git a/sdk b/sdk new file mode 160000 index 0000000..5f773a2 --- /dev/null +++ b/sdk @@ -0,0 +1 @@ +Subproject commit 5f773a20d9ea4b0a5f06d1b860d3d3da7509699f diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index 8a09c2e..01ff24f 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -2006,7 +2006,7 @@ async fn send_response_publish_failure_allows_one_successful_retry() { Arc::clone(&server_pool), 1, )); - + let mut server = NostrServerTransport::with_relay_pool( NostrServerTransportConfig { encryption_mode: EncryptionMode::Disabled, From be992f0cf046c656937e32b45dd40152996ed13d Mon Sep 17 00:00:00 2001 From: Harsh Date: Wed, 29 Apr 2026 18:31:35 +0530 Subject: [PATCH 051/116] fix: send JSON-RPC -32000 Unauthorized error on announced servers with allowlist --- src/transport/server/mod.rs | 54 +++++++++ tests/transport_integration.rs | 210 +++++++++++++++++++++++++++++++++ 2 files changed, 264 insertions(+) diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 5ae383e..ff07ef2 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -224,6 +224,7 @@ impl NostrServerTransport { let allowed = self.config.allowed_public_keys.clone(); let excluded = self.config.excluded_capabilities.clone(); let encryption_mode = self.config.encryption_mode; + let is_announced_server = self.config.is_announced_server; let seen_gift_wrap_ids = self.seen_gift_wrap_ids.clone(); tokio::spawn(async move { @@ -235,6 +236,7 @@ impl NostrServerTransport { allowed, excluded, encryption_mode, + is_announced_server, seen_gift_wrap_ids, ) .await; @@ -656,6 +658,7 @@ impl NostrServerTransport { allowed_pubkeys: Vec, excluded_capabilities: Vec, encryption_mode: EncryptionMode, + is_announced_server: bool, seen_gift_wrap_ids: Arc>>, ) { let mut notifications = relay_pool.notifications(); @@ -799,6 +802,57 @@ impl NostrServerTransport { method = method, "Unauthorized request" ); + + // On announced servers, send a JSON-RPC error back for + // Request messages so the client doesn't hang indefinitely. + if is_announced_server { + if let JsonRpcMessage::Request(ref req) = mcp_msg { + let error_response = + JsonRpcMessage::ErrorResponse(JsonRpcErrorResponse { + jsonrpc: "2.0".to_string(), + id: req.id.clone(), + error: JsonRpcError { + code: -32000, + message: "Unauthorized".to_string(), + data: None, + }, + }); + + if let Ok(client_pk) = PublicKey::from_hex(&sender_pubkey) { + let event_id_parsed = EventId::from_hex(&event_id) + .unwrap_or(EventId::all_zeros()); + let tags = BaseTransport::create_response_tags( + &client_pk, + &event_id_parsed, + ); + + let base = BaseTransport { + relay_pool: Arc::clone(&relay_pool), + encryption_mode, + is_connected: true, + }; + if let Err(e) = base + .send_mcp_message( + &error_response, + &client_pk, + CTXVM_MESSAGES_KIND, + tags, + Some(is_encrypted), + None, + ) + .await + { + tracing::error!( + target: LOG_TARGET, + error = %e, + sender_pubkey = %sender_pubkey, + "Failed to send unauthorized error response" + ); + } + } + } + } + continue; } } diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index 01ff24f..e4b0e80 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -2119,3 +2119,213 @@ async fn send_response_publish_failure_allows_one_successful_retry() { "client must receive the retried response exactly once" ); } + +// ── 28. Announced server sends unauthorized error response ─────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn announced_server_sends_unauthorized_error_response() { + let allowed_keys = Keys::generate(); // a DIFFERENT pubkey — client is NOT in the allowlist + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + // Announced server with an allowlist that does NOT include the client. + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + allowed_public_keys: vec![allowed_keys.public_key().to_hex()], + is_announced_server: true, + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + server.start().await.expect("server start"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut client_rx = client + .take_message_receiver() + .expect("client message receiver"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Send a non-initialize request from the unauthorized client. + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(42), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send request"); + + // The server handler must NOT receive the request (it's unauthorized). + let server_forward = tokio::time::timeout(Duration::from_millis(300), server_rx.recv()).await; + assert!( + server_forward.is_err(), + "unauthorized request must not reach the server handler" + ); + + // The client MUST receive a -32000 Unauthorized error response. + let error_msg = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .expect("timeout waiting for unauthorized error response") + .expect("client channel closed"); + + match error_msg { + JsonRpcMessage::ErrorResponse(err) => { + assert_eq!(err.error.code, -32000, "error code must be -32000"); + assert_eq!( + err.error.message, "Unauthorized", + "error message must be 'Unauthorized'" + ); + } + other => panic!( + "expected ErrorResponse, got: {:?}", + std::mem::discriminant(&other) + ), + } +} + +// ── 29. Private server silently drops unauthorized request ─────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn private_server_silently_drops_unauthorized_request() { + let allowed_keys = Keys::generate(); + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + // Private server (is_announced_server defaults to false). + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + allowed_public_keys: vec![allowed_keys.public_key().to_hex()], + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + server.start().await.expect("server start"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut client_rx = client + .take_message_receiver() + .expect("client message receiver"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(99), + method: "tools/list".to_string(), + params: None, + }); + client.send(&request).await.expect("send request"); + + // Server handler must not receive it. + let server_forward = tokio::time::timeout(Duration::from_millis(300), server_rx.recv()).await; + assert!( + server_forward.is_err(), + "unauthorized request must not reach the server handler" + ); + + // Client must NOT receive any error response (private server silently drops). + let client_response = tokio::time::timeout(Duration::from_millis(300), client_rx.recv()).await; + assert!( + client_response.is_err(), + "private server must silently drop unauthorized requests without sending an error" + ); +} + +// ── 30. Announced server does not error on unauthorized notification ───────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn announced_server_does_not_error_on_unauthorized_notification() { + let allowed_keys = Keys::generate(); + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + allowed_public_keys: vec![allowed_keys.public_key().to_hex()], + is_announced_server: true, + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + server.start().await.expect("server start"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut client_rx = client + .take_message_receiver() + .expect("client message receiver"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Send a notification (not a request) from the unauthorized client. + let notification = JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: None, + }); + client.send(¬ification).await.expect("send notification"); + + // Server handler must not receive the notification. + let server_forward = tokio::time::timeout(Duration::from_millis(300), server_rx.recv()).await; + assert!( + server_forward.is_err(), + "unauthorized notification must not reach the server handler" + ); + + // Client must NOT receive an error (notifications never get error replies). + let client_response = tokio::time::timeout(Duration::from_millis(300), client_rx.recv()).await; + assert!( + client_response.is_err(), + "announced server must not send error response for unauthorized notifications" + ); +} From 4280b1e89276d3cd5bb3a7a9ef595675e2e9d63d Mon Sep 17 00:00:00 2001 From: Harsh Date: Sun, 26 Apr 2026 12:54:47 +0530 Subject: [PATCH 052/116] feat: add discovery tags module, PeerCapabilities, and server config foundation for CEP-35 --- src/core/constants.rs | 7 + src/gateway/mod.rs | 1 + src/lib.rs | 1 + src/transport/discovery_tags.rs | 357 ++++++++++++++++++++++ src/transport/mod.rs | 2 + src/transport/server/correlation_store.rs | 4 + src/transport/server/mod.rs | 3 + 7 files changed, 375 insertions(+) create mode 100644 src/transport/discovery_tags.rs diff --git a/src/core/constants.rs b/src/core/constants.rs index f610637..dd8cc08 100644 --- a/src/core/constants.rs +++ b/src/core/constants.rs @@ -64,6 +64,9 @@ pub mod tags { /// Support ephemeral gift wrap kind (21059) for encrypted messages (CEP-19) pub const SUPPORT_ENCRYPTION_EPHEMERAL: &str = "support_encryption_ephemeral"; + + /// Support CEP-22 oversized payload transfer via notifications/progress framing + pub const SUPPORT_OVERSIZED_TRANSFER: &str = "support_oversized_transfer"; } /// Maximum message size (1MB) @@ -162,6 +165,10 @@ mod tests { tags::SUPPORT_ENCRYPTION_EPHEMERAL, "support_encryption_ephemeral" ); + assert_eq!( + tags::SUPPORT_OVERSIZED_TRANSFER, + "support_oversized_transfer" + ); } #[test] diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index ea388b7..e9d00f2 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -117,6 +117,7 @@ mod tests { let nostr_config = NostrServerTransportConfig { relay_urls: vec!["wss://relay.example.com".to_string()], encryption_mode: EncryptionMode::Required, + gift_wrap_mode: GiftWrapMode::Optional, server_info: Some(ServerInfo { name: Some("Test Gateway".to_string()), version: Some("1.0.0".to_string()), diff --git a/src/lib.rs b/src/lib.rs index 828439f..575e356 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -62,6 +62,7 @@ pub use relay::{RelayPool, RelayPoolTrait}; pub use transport::client::{ ClientCorrelationStore, NostrClientTransport, NostrClientTransportConfig, }; +pub use transport::discovery_tags::{DiscoveredPeerCapabilities, PeerCapabilities}; pub use transport::server::{ IncomingRequest, NostrServerTransport, NostrServerTransportConfig, RouteEntry, ServerEventRouteStore, SessionSnapshot, SessionStore, diff --git a/src/transport/discovery_tags.rs b/src/transport/discovery_tags.rs new file mode 100644 index 0000000..20df62c --- /dev/null +++ b/src/transport/discovery_tags.rs @@ -0,0 +1,357 @@ +//! Discovery tag utilities for CEP-35 capability exchange. +//! +//! Ports the TS SDK's `discovery-tags.ts` module. Provides functions to filter, +//! parse, learn, and merge discovery tags on Nostr events exchanged between +//! MCP clients and servers. + +use std::collections::HashSet; + +use nostr_sdk::prelude::*; + +use crate::core::constants::tags; + +/// Routing tag names that are excluded from discovery tags. +const NON_DISCOVERY_TAG_NAMES: &[&str] = &["p", "e"]; + +/// Capability flags learned from inbound peer discovery tags. +#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)] +pub struct PeerCapabilities { + /// Peer supports NIP-44/NIP-59 encrypted messaging. + pub supports_encryption: bool, + /// Peer supports ephemeral gift wraps (kind 21059, CEP-19). + pub supports_ephemeral_encryption: bool, + /// Peer supports CEP-22 oversized payload transfer. + pub supports_oversized_transfer: bool, +} + +/// Returns `true` when the tag list contains a single-valued tag whose name matches `name`. +/// +/// A single-valued tag is a tag array whose only element is the tag name itself, +/// e.g. `["support_encryption"]`. +pub fn has_single_tag(tags: &[Tag], name: &str) -> bool { + tags.iter().any(|tag| { + let v = tag.clone().to_vec(); + v.len() == 1 && v[0] == name + }) +} + +/// Filters out routing tags (`p`, `e`) and returns cloned discovery tags. +/// +/// Mirrors TS SDK `getDiscoveryTags()`. +pub fn get_discovery_tags(tags: &[Tag]) -> Vec { + tags.iter() + .filter(|tag| { + let v = (*tag).clone().to_vec(); + match v.first() { + Some(name) => !NON_DISCOVERY_TAG_NAMES.contains(&name.as_str()), + None => false, + } + }) + .cloned() + .collect() +} + +/// Inspects tags and returns discovered peer capabilities. +/// +/// Mirrors TS SDK `learnPeerCapabilities()`. +pub fn learn_peer_capabilities(tags: &[Tag]) -> PeerCapabilities { + PeerCapabilities { + supports_encryption: has_single_tag(tags, tags::SUPPORT_ENCRYPTION), + supports_ephemeral_encryption: has_single_tag(tags, tags::SUPPORT_ENCRYPTION_EPHEMERAL), + supports_oversized_transfer: has_single_tag(tags, tags::SUPPORT_OVERSIZED_TRANSFER), + } +} + +/// Parsed capability flags together with the raw discovery tags. +#[derive(Debug, Clone)] +pub struct DiscoveredPeerCapabilities { + /// The filtered discovery tags (routing tags stripped). + pub discovery_tags: Vec, + /// Parsed capability flags. + pub capabilities: PeerCapabilities, +} + +/// Parses peer discovery tags into normalized capability flags plus the raw +/// discovery tags for storage/forwarding. +/// +/// Mirrors TS SDK `parseDiscoveredPeerCapabilities()`. +pub fn parse_discovered_peer_capabilities(tags: &[Tag]) -> DiscoveredPeerCapabilities { + let discovery_tags = get_discovery_tags(tags); + let capabilities = learn_peer_capabilities(&discovery_tags); + DiscoveredPeerCapabilities { + discovery_tags, + capabilities, + } +} + +/// Merges incoming discovery tags into the current set, preserving order and +/// deduplicating by full tag content (all elements must match). +/// +/// Mirrors TS SDK `mergeDiscoveryTags()`. +pub fn merge_discovery_tags(current: &[Tag], incoming: &[Tag]) -> Vec { + let mut merged: Vec = current.to_vec(); + let mut seen: HashSet> = merged.iter().map(|t| t.clone().to_vec()).collect(); + + for tag in incoming { + let key = tag.clone().to_vec(); + if seen.insert(key) { + merged.push(tag.clone()); + } + } + + merged +} + +#[cfg(test)] +mod tests { + use super::*; + + fn make_tag(parts: &[&str]) -> Tag { + let kind = TagKind::Custom(parts[0].into()); + let values: Vec = parts[1..].iter().map(|s| s.to_string()).collect(); + Tag::custom(kind, values) + } + + fn tag_name(tag: &Tag) -> String { + tag.clone().to_vec()[0].clone() + } + + // ── has_single_tag ────────────────────────────────────────────── + + #[test] + fn has_single_tag_finds_present() { + let tags = vec![make_tag(&["support_encryption"])]; + assert!(has_single_tag(&tags, "support_encryption")); + } + + #[test] + fn has_single_tag_ignores_multi_value() { + let tags = vec![make_tag(&["support_encryption", "extra"])]; + assert!(!has_single_tag(&tags, "support_encryption")); + } + + #[test] + fn has_single_tag_returns_false_when_absent() { + let tags = vec![make_tag(&["other_tag"])]; + assert!(!has_single_tag(&tags, "support_encryption")); + } + + #[test] + fn has_single_tag_empty_tags() { + assert!(!has_single_tag(&[], "support_encryption")); + } + + // ── get_discovery_tags ────────────────────────────────────────── + + #[test] + fn get_discovery_tags_filters_routing_tags() { + let tags = vec![ + Tag::public_key(Keys::generate().public_key()), + Tag::event(EventId::all_zeros()), + make_tag(&["support_encryption"]), + make_tag(&["name", "My Server"]), + ]; + let discovery = get_discovery_tags(&tags); + assert_eq!(discovery.len(), 2); + assert_eq!(tag_name(&discovery[0]), "support_encryption"); + assert_eq!(tag_name(&discovery[1]), "name"); + } + + #[test] + fn get_discovery_tags_empty_input() { + let discovery = get_discovery_tags(&[]); + assert!(discovery.is_empty()); + } + + #[test] + fn get_discovery_tags_all_routing() { + let tags = vec![ + Tag::public_key(Keys::generate().public_key()), + Tag::event(EventId::all_zeros()), + ]; + let discovery = get_discovery_tags(&tags); + assert!(discovery.is_empty()); + } + + #[test] + fn get_discovery_tags_preserves_order() { + let tags = vec![ + make_tag(&["about", "hello"]), + Tag::public_key(Keys::generate().public_key()), + make_tag(&["website", "https://example.com"]), + make_tag(&["support_encryption"]), + ]; + let discovery = get_discovery_tags(&tags); + assert_eq!(discovery.len(), 3); + assert_eq!(tag_name(&discovery[0]), "about"); + assert_eq!(tag_name(&discovery[1]), "website"); + assert_eq!(tag_name(&discovery[2]), "support_encryption"); + } + + // ── learn_peer_capabilities ───────────────────────────────────── + + #[test] + fn learn_peer_capabilities_all_present() { + let tags = vec![ + make_tag(&["support_encryption"]), + make_tag(&["support_encryption_ephemeral"]), + make_tag(&["support_oversized_transfer"]), + ]; + let caps = learn_peer_capabilities(&tags); + assert!(caps.supports_encryption); + assert!(caps.supports_ephemeral_encryption); + assert!(caps.supports_oversized_transfer); + } + + #[test] + fn learn_peer_capabilities_none_present() { + let tags = vec![make_tag(&["name", "Server"])]; + let caps = learn_peer_capabilities(&tags); + assert!(!caps.supports_encryption); + assert!(!caps.supports_ephemeral_encryption); + assert!(!caps.supports_oversized_transfer); + } + + #[test] + fn learn_peer_capabilities_partial() { + let tags = vec![make_tag(&["support_encryption"])]; + let caps = learn_peer_capabilities(&tags); + assert!(caps.supports_encryption); + assert!(!caps.supports_ephemeral_encryption); + assert!(!caps.supports_oversized_transfer); + } + + #[test] + fn learn_peer_capabilities_empty() { + let caps = learn_peer_capabilities(&[]); + assert_eq!(caps, PeerCapabilities::default()); + } + + #[test] + fn learn_peer_capabilities_ignores_multi_value_capability_tags() { + // Tags with values (e.g. ["support_encryption", "extra"]) are not + // single-valued and should not be treated as capability flags. + let tags = vec![ + make_tag(&["support_encryption", "yes"]), + make_tag(&["support_encryption_ephemeral"]), + ]; + let caps = learn_peer_capabilities(&tags); + assert!(!caps.supports_encryption); + assert!(caps.supports_ephemeral_encryption); + assert!(!caps.supports_oversized_transfer); + } + + // ── parse_discovered_peer_capabilities ────────────────────────── + + #[test] + fn parse_discovered_peer_capabilities_filters_and_parses() { + let tags = vec![ + Tag::public_key(Keys::generate().public_key()), + Tag::event(EventId::all_zeros()), + make_tag(&["support_encryption"]), + make_tag(&["support_encryption_ephemeral"]), + make_tag(&["name", "Test Server"]), + ]; + let result = parse_discovered_peer_capabilities(&tags); + + // Routing tags filtered out + assert_eq!(result.discovery_tags.len(), 3); + + // Capabilities parsed correctly + assert!(result.capabilities.supports_encryption); + assert!(result.capabilities.supports_ephemeral_encryption); + assert!(!result.capabilities.supports_oversized_transfer); + } + + #[test] + fn parse_discovered_peer_capabilities_empty() { + let result = parse_discovered_peer_capabilities(&[]); + assert!(result.discovery_tags.is_empty()); + assert_eq!(result.capabilities, PeerCapabilities::default()); + } + + // ── merge_discovery_tags ──────────────────────────────────────── + + #[test] + fn merge_discovery_tags_appends_new() { + let current = vec![make_tag(&["support_encryption"])]; + let incoming = vec![make_tag(&["name", "Server"])]; + let merged = merge_discovery_tags(¤t, &incoming); + assert_eq!(merged.len(), 2); + assert_eq!(tag_name(&merged[0]), "support_encryption"); + assert_eq!(tag_name(&merged[1]), "name"); + } + + #[test] + fn merge_discovery_tags_deduplicates() { + let tag_a = make_tag(&["support_encryption"]); + let tag_b = make_tag(&["support_encryption"]); + let current = vec![tag_a]; + let incoming = vec![tag_b]; + let merged = merge_discovery_tags(¤t, &incoming); + assert_eq!(merged.len(), 1); + } + + #[test] + fn merge_discovery_tags_deduplicates_with_values() { + let current = vec![make_tag(&["name", "Server"])]; + let incoming = vec![ + make_tag(&["name", "Server"]), // exact dup + make_tag(&["name", "Other Server"]), // same tag name, different value — not a dup + ]; + let merged = merge_discovery_tags(¤t, &incoming); + assert_eq!(merged.len(), 2); + } + + #[test] + fn merge_discovery_tags_preserves_order() { + let current = vec![make_tag(&["b_tag"]), make_tag(&["a_tag"])]; + let incoming = vec![make_tag(&["c_tag"]), make_tag(&["a_tag"])]; + let merged = merge_discovery_tags(¤t, &incoming); + assert_eq!(merged.len(), 3); + assert_eq!(tag_name(&merged[0]), "b_tag"); + assert_eq!(tag_name(&merged[1]), "a_tag"); + assert_eq!(tag_name(&merged[2]), "c_tag"); + } + + #[test] + fn merge_discovery_tags_both_empty() { + let merged = merge_discovery_tags(&[], &[]); + assert!(merged.is_empty()); + } + + #[test] + fn merge_discovery_tags_current_empty() { + let incoming = vec![make_tag(&["support_encryption"])]; + let merged = merge_discovery_tags(&[], &incoming); + assert_eq!(merged.len(), 1); + } + + #[test] + fn merge_discovery_tags_incoming_empty() { + let current = vec![make_tag(&["support_encryption"])]; + let merged = merge_discovery_tags(¤t, &[]); + assert_eq!(merged.len(), 1); + } + + // ── PeerCapabilities ──────────────────────────────────────────── + + #[test] + fn peer_capabilities_default_all_false() { + let caps = PeerCapabilities::default(); + assert!(!caps.supports_encryption); + assert!(!caps.supports_ephemeral_encryption); + assert!(!caps.supports_oversized_transfer); + } + + #[test] + fn peer_capabilities_copy_semantics() { + let caps = PeerCapabilities { + supports_encryption: true, + supports_ephemeral_encryption: true, + supports_oversized_transfer: false, + }; + let copy = caps; + assert_eq!(caps, copy); + } +} diff --git a/src/transport/mod.rs b/src/transport/mod.rs index 0a31f45..a5d53e8 100644 --- a/src/transport/mod.rs +++ b/src/transport/mod.rs @@ -5,7 +5,9 @@ pub mod base; pub mod client; +pub mod discovery_tags; pub mod server; pub use client::{ClientCorrelationStore, NostrClientTransport, NostrClientTransportConfig}; +pub use discovery_tags::*; pub use server::{NostrServerTransport, NostrServerTransportConfig, ServerEventRouteStore}; diff --git a/src/transport/server/correlation_store.rs b/src/transport/server/correlation_store.rs index 3d8509e..cad616e 100644 --- a/src/transport/server/correlation_store.rs +++ b/src/transport/server/correlation_store.rs @@ -18,6 +18,9 @@ pub struct RouteEntry { pub original_request_id: serde_json::Value, /// Optional progress token for this request. pub progress_token: Option, + /// The outer gift-wrap event kind that carried this request (e.g. 1059 or 21059). + /// Populated from the inbound event in a later PR; `None` until then. + pub wrap_kind: Option, } /// Internal state behind the lock. @@ -123,6 +126,7 @@ impl ServerEventRouteStore { client_pubkey, original_request_id, progress_token, + wrap_kind: None, }, ); diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index ff07ef2..fa09762 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -35,6 +35,8 @@ pub struct NostrServerTransportConfig { pub relay_urls: Vec, /// Encryption mode. pub encryption_mode: EncryptionMode, + /// Gift-wrap kind selection policy (CEP-19). + pub gift_wrap_mode: GiftWrapMode, /// Server information for announcements. pub server_info: Option, /// Whether this server publishes public announcements (CEP-6). @@ -56,6 +58,7 @@ impl Default for NostrServerTransportConfig { Self { relay_urls: vec!["wss://relay.damus.io".to_string()], encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, server_info: None, is_announced_server: false, allowed_public_keys: Vec::new(), From 1e495725869e5a8bc1886855279b068cad32b970 Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 30 Apr 2026 17:56:10 +0530 Subject: [PATCH 053/116] refactor: remove merge_discovery_tags per CEP-35 spec update --- src/transport/discovery_tags.rs | 88 +-------------------------------- 1 file changed, 2 insertions(+), 86 deletions(-) diff --git a/src/transport/discovery_tags.rs b/src/transport/discovery_tags.rs index 20df62c..ca20a9c 100644 --- a/src/transport/discovery_tags.rs +++ b/src/transport/discovery_tags.rs @@ -1,10 +1,8 @@ //! Discovery tag utilities for CEP-35 capability exchange. //! //! Ports the TS SDK's `discovery-tags.ts` module. Provides functions to filter, -//! parse, learn, and merge discovery tags on Nostr events exchanged between -//! MCP clients and servers. - -use std::collections::HashSet; +//! parse, and learn discovery tags on Nostr events exchanged between MCP clients +//! and servers. use nostr_sdk::prelude::*; @@ -84,24 +82,6 @@ pub fn parse_discovered_peer_capabilities(tags: &[Tag]) -> DiscoveredPeerCapabil } } -/// Merges incoming discovery tags into the current set, preserving order and -/// deduplicating by full tag content (all elements must match). -/// -/// Mirrors TS SDK `mergeDiscoveryTags()`. -pub fn merge_discovery_tags(current: &[Tag], incoming: &[Tag]) -> Vec { - let mut merged: Vec = current.to_vec(); - let mut seen: HashSet> = merged.iter().map(|t| t.clone().to_vec()).collect(); - - for tag in incoming { - let key = tag.clone().to_vec(); - if seen.insert(key) { - merged.push(tag.clone()); - } - } - - merged -} - #[cfg(test)] mod tests { use super::*; @@ -270,70 +250,6 @@ mod tests { assert_eq!(result.capabilities, PeerCapabilities::default()); } - // ── merge_discovery_tags ──────────────────────────────────────── - - #[test] - fn merge_discovery_tags_appends_new() { - let current = vec![make_tag(&["support_encryption"])]; - let incoming = vec![make_tag(&["name", "Server"])]; - let merged = merge_discovery_tags(¤t, &incoming); - assert_eq!(merged.len(), 2); - assert_eq!(tag_name(&merged[0]), "support_encryption"); - assert_eq!(tag_name(&merged[1]), "name"); - } - - #[test] - fn merge_discovery_tags_deduplicates() { - let tag_a = make_tag(&["support_encryption"]); - let tag_b = make_tag(&["support_encryption"]); - let current = vec![tag_a]; - let incoming = vec![tag_b]; - let merged = merge_discovery_tags(¤t, &incoming); - assert_eq!(merged.len(), 1); - } - - #[test] - fn merge_discovery_tags_deduplicates_with_values() { - let current = vec![make_tag(&["name", "Server"])]; - let incoming = vec![ - make_tag(&["name", "Server"]), // exact dup - make_tag(&["name", "Other Server"]), // same tag name, different value — not a dup - ]; - let merged = merge_discovery_tags(¤t, &incoming); - assert_eq!(merged.len(), 2); - } - - #[test] - fn merge_discovery_tags_preserves_order() { - let current = vec![make_tag(&["b_tag"]), make_tag(&["a_tag"])]; - let incoming = vec![make_tag(&["c_tag"]), make_tag(&["a_tag"])]; - let merged = merge_discovery_tags(¤t, &incoming); - assert_eq!(merged.len(), 3); - assert_eq!(tag_name(&merged[0]), "b_tag"); - assert_eq!(tag_name(&merged[1]), "a_tag"); - assert_eq!(tag_name(&merged[2]), "c_tag"); - } - - #[test] - fn merge_discovery_tags_both_empty() { - let merged = merge_discovery_tags(&[], &[]); - assert!(merged.is_empty()); - } - - #[test] - fn merge_discovery_tags_current_empty() { - let incoming = vec![make_tag(&["support_encryption"])]; - let merged = merge_discovery_tags(&[], &incoming); - assert_eq!(merged.len(), 1); - } - - #[test] - fn merge_discovery_tags_incoming_empty() { - let current = vec![make_tag(&["support_encryption"])]; - let merged = merge_discovery_tags(¤t, &[]); - assert_eq!(merged.len(), 1); - } - // ── PeerCapabilities ──────────────────────────────────────────── #[test] From f0ea0976746b08fd1e188a3f2041dde0c5a73cd2 Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 30 Apr 2026 20:12:05 +0530 Subject: [PATCH 054/116] fix: register client request before publish and drop uncorrelated responses --- src/transport/base.rs | 52 +++++++++++++++++++++++++++++++++++++ src/transport/client/mod.rs | 41 ++++++++++++++++++++++++++--- 2 files changed, 90 insertions(+), 3 deletions(-) diff --git a/src/transport/base.rs b/src/transport/base.rs index ccd7e03..781d58b 100644 --- a/src/transport/base.rs +++ b/src/transport/base.rs @@ -101,6 +101,58 @@ impl BaseTransport { self.relay_pool.sign(builder).await } + /// Prepare an MCP message for publishing without actually publishing it. + /// + /// Signs (and optionally gift-wraps) the event, returning the inner signed + /// event ID together with the final event that should be published to relays. + pub async fn prepare_mcp_message( + &self, + message: &JsonRpcMessage, + recipient: &PublicKey, + kind: u16, + tags: Vec, + is_encrypted: Option, + gift_wrap_kind: Option, + ) -> Result<(EventId, Event)> { + let should_encrypt = self.should_encrypt(kind, is_encrypted); + + let event = self.create_signed_event(message, kind, tags).await?; + let signed_event_id = event.id; + + if should_encrypt { + let event_json = + serde_json::to_string(&event).map_err(|e| Error::Encryption(e.to_string()))?; + let signer = self + .relay_pool + .signer() + .await + .map_err(|e| Error::Encryption(e.to_string()))?; + let selected_gift_wrap_kind = gift_wrap_kind.unwrap_or(GIFT_WRAP_KIND); + let gift_wrap_event = encryption::gift_wrap_single_layer_with_kind( + &signer, + recipient, + &event_json, + selected_gift_wrap_kind, + ) + .await?; + tracing::debug!( + target: LOG_TARGET, + signed_event_id = %signed_event_id, + envelope_id = %gift_wrap_event.id, + gift_wrap_kind = selected_gift_wrap_kind, + "Prepared encrypted MCP message" + ); + Ok((signed_event_id, gift_wrap_event)) + } else { + tracing::debug!( + target: LOG_TARGET, + signed_event_id = %signed_event_id, + "Prepared unencrypted MCP message" + ); + Ok((signed_event_id, event)) + } + } + /// Send an MCP message to a recipient, optionally encrypting. /// /// Returns the signed MCP event ID. diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index c3646f9..675be02 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -274,9 +274,10 @@ impl NostrClientTransport { } let tags = BaseTransport::create_recipient_tags(&self.server_pubkey); - let event_id = self + + let (event_id, publishable_event) = self .base - .send_mcp_message( + .prepare_mcp_message( message, &self.server_pubkey, CTXVM_MESSAGES_KIND, @@ -291,7 +292,7 @@ impl NostrClientTransport { error = %error, server_pubkey = %self.server_pubkey.to_hex(), method = ?message.method(), - "Failed to send client message" + "Failed to prepare client message" ); error })?; @@ -303,6 +304,18 @@ impl NostrClientTransport { .await; } + if let Err(error) = self.base.relay_pool.publish_event(&publishable_event).await { + self.pending_requests.remove(&event_id.to_hex()).await; + tracing::error!( + target: LOG_TARGET, + error = %error, + server_pubkey = %self.server_pubkey.to_hex(), + method = ?message.method(), + "Failed to publish client message" + ); + return Err(error); + } + tracing::debug!( target: LOG_TARGET, event_id = %event_id.to_hex(), @@ -502,6 +515,28 @@ impl NostrClientTransport { // Parse MCP message if let Some(mcp_msg) = validation::validate_and_parse(&actual_event_content) { + // Drop uncorrelated responses and server-to-client requests (matches TS SDK). + match &mcp_msg { + JsonRpcMessage::Response(_) | JsonRpcMessage::ErrorResponse(_) + if e_tag.is_none() => + { + tracing::warn!( + target: LOG_TARGET, + "Dropping response/error without correlation `e` tag" + ); + continue; + } + JsonRpcMessage::Request(_) => { + tracing::warn!( + target: LOG_TARGET, + method = ?mcp_msg.method(), + "Dropping server-to-client request (invalid in MCP)" + ); + continue; + } + _ => {} + } + // Clean up pending request if let Some(ref correlated_id) = e_tag { pending.remove(correlated_id.as_str()).await; From c499b8d6b5914f642c70939e1a0788fd1648b393 Mon Sep 17 00:00:00 2001 From: Kushagra Date: Sat, 2 May 2026 10:07:46 +0530 Subject: [PATCH 055/116] feat(cep19): added missing test cases --- src/transport/server/mod.rs | 30 ++++++++++++++----- tests/transport_integration.rs | 54 +++++++++++++++++++++++++--------- 2 files changed, 62 insertions(+), 22 deletions(-) diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index c56a8df..5a4e68f 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -943,7 +943,7 @@ impl NostrServerTransport { let has_sent = sessions .get_session(&sender_pubkey) .await - .map_or(false, |s| s.has_sent_common_tags); + .is_some_and(|s| s.has_sent_common_tags); if !has_sent { Self::append_common_response_tags( &mut tags, @@ -1546,7 +1546,8 @@ mod tests { } #[test] - fn test_select_outbound_notification_gift_wrap_kind_falls_back_to_mode_if_correlated_not_allowed() { + fn test_select_outbound_notification_gift_wrap_kind_falls_back_to_mode_if_correlated_not_allowed( + ) { assert_eq!( NostrServerTransport::select_outbound_notification_gift_wrap_kind( GiftWrapMode::Ephemeral, @@ -1572,7 +1573,8 @@ mod tests { } #[test] - fn test_select_outbound_notification_gift_wrap_kind_uses_persistent_if_ephemeral_supported_but_mode_persistent() { + fn test_select_outbound_notification_gift_wrap_kind_uses_persistent_if_ephemeral_supported_but_mode_persistent( + ) { assert_eq!( NostrServerTransport::select_outbound_notification_gift_wrap_kind( GiftWrapMode::Persistent, @@ -1585,7 +1587,8 @@ mod tests { } #[test] - fn test_select_outbound_notification_gift_wrap_kind_uses_default_mode_if_ephemeral_not_supported() { + fn test_select_outbound_notification_gift_wrap_kind_uses_default_mode_if_ephemeral_not_supported( + ) { assert_eq!( NostrServerTransport::select_outbound_notification_gift_wrap_kind( GiftWrapMode::Optional, @@ -1609,7 +1612,9 @@ mod tests { ); let kinds: Vec = tags.iter().map(|t| format!("{:?}", t.kind())).collect(); assert!( - kinds.iter().any(|k| k.contains("support_encryption_ephemeral")), + kinds + .iter() + .any(|k| k.contains("support_encryption_ephemeral")), "should include support_encryption_ephemeral tag" ); } @@ -1628,14 +1633,20 @@ mod tests { EncryptionMode::Disabled, GiftWrapMode::Optional, ); - let tag_value = crate::core::serializers::get_tag_value(&tags, "name"); + let tag_value = tags + .iter() + .find(|t| (*t).clone().to_vec().first().map(|s| s.as_str()) == Some("name")) + .and_then(|t| t.clone().to_vec().get(1).cloned()); assert_eq!(tag_value.as_deref(), Some("TestServer")); } #[test] fn test_append_common_response_tags_extra_tags() { let mut tags = Vec::new(); - let extra_tags = vec![Tag::custom(TagKind::Custom("custom_tag".into()), vec!["value".to_string()])]; + let extra_tags = vec![Tag::custom( + TagKind::Custom("custom_tag".into()), + vec!["value".to_string()], + )]; NostrServerTransport::append_common_response_tags( &mut tags, None, @@ -1643,7 +1654,10 @@ mod tests { EncryptionMode::Disabled, GiftWrapMode::Optional, ); - let tag_value = crate::core::serializers::get_tag_value(&tags, "custom_tag"); + let tag_value = tags + .iter() + .find(|t| (*t).clone().to_vec().first().map(|s| s.as_str()) == Some("custom_tag")) + .and_then(|t| t.clone().to_vec().get(1).cloned()); assert_eq!(tag_value.as_deref(), Some("value")); } } diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index ac54d0f..a51ee8b 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -2406,10 +2406,15 @@ async fn first_response_includes_discovery_tags() { }); client.send(&request2).await.expect("send request 2"); - let incoming2 = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) - .await - .expect("timeout") - .expect("channel closed"); + let incoming2 = loop { + let msg = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout") + .expect("channel closed"); + if msg.message.is_request() && msg.message.id() == Some(&serde_json::json!("req-2")) { + break msg; + } + }; let response2 = JsonRpcMessage::Response(JsonRpcResponse { jsonrpc: "2.0".to_string(), @@ -2422,20 +2427,32 @@ async fn first_response_includes_discovery_tags() { .expect("send response 2"); let events = s_pool.stored_events().await; - let mut responses: Vec<_> = events + let responses: Vec<_> = events .iter() .filter(|e| e.kind == Kind::Custom(contextvm_sdk::core::constants::CTXVM_MESSAGES_KIND)) .cloned() .collect(); - - let resp1 = responses.iter().find(|e| e.content.contains("req-1")).expect("resp1 missing"); - let resp2 = responses.iter().find(|e| e.content.contains("req-2")).expect("resp2 missing"); + + let resp1 = responses + .iter() + .find(|e| e.content.contains("req-1") && e.content.contains("result")) + .expect("resp1 missing"); + let resp2 = responses + .iter() + .find(|e| e.content.contains("req-2") && e.content.contains("result")) + .expect("resp2 missing"); let name1 = contextvm_sdk::core::serializers::get_tag_value(&resp1.tags, "name"); - let enc1 = resp1.tags.iter().any(|t| t.clone().to_vec().first().map(|s| s.as_str()) == Some("support_encryption")); + let enc1 = resp1 + .tags + .iter() + .any(|t| t.clone().to_vec().first().map(|s| s.as_str()) == Some("support_encryption")); let name2 = contextvm_sdk::core::serializers::get_tag_value(&resp2.tags, "name"); - let enc2 = resp2.tags.iter().any(|t| t.clone().to_vec().first().map(|s| s.as_str()) == Some("support_encryption")); + let enc2 = resp2 + .tags + .iter() + .any(|t| t.clone().to_vec().first().map(|s| s.as_str()) == Some("support_encryption")); assert_eq!(name1.as_deref(), Some("Disco-Server")); assert!(enc1); @@ -2504,7 +2521,11 @@ async fn notification_mirror_selection_wrt_cep_19() { params: None, }); server - .send_notification(&incoming1.client_pubkey, ¬ification, Some(&incoming1.event_id)) + .send_notification( + &incoming1.client_pubkey, + ¬ification, + Some(&incoming1.event_id), + ) .await .expect("send notification"); @@ -2512,10 +2533,15 @@ async fn notification_mirror_selection_wrt_cep_19() { let events = s_pool.stored_events().await; let ephemeral_wraps: Vec<_> = events .iter() - .filter(|e| e.kind == Kind::Custom(contextvm_sdk::core::constants::EPHEMERAL_GIFT_WRAP_KIND)) + .filter(|e| { + e.kind == Kind::Custom(contextvm_sdk::core::constants::EPHEMERAL_GIFT_WRAP_KIND) + }) .cloned() .collect(); - + // 1 from client (request), 1 from server (notification). The client also sends other msgs? - assert!(ephemeral_wraps.len() >= 2, "Expected ephemeral wraps for both request and notification"); + assert!( + ephemeral_wraps.len() >= 2, + "Expected ephemeral wraps for both request and notification" + ); } From 14d5328ba8ae6f15f0694fb218afe8a24c9a6f0c Mon Sep 17 00:00:00 2001 From: Harsh Date: Sat, 2 May 2026 01:25:42 +0530 Subject: [PATCH 056/116] feat: enrich ClientSession, add tag composition, server discovery tag emission and capability learning --- src/core/types.rs | 13 +- src/transport/base.rs | 68 +++++ src/transport/server/mod.rs | 167 +++++++++--- src/transport/server/session_store.rs | 120 +++++++++ tests/transport_integration.rs | 350 ++++++++++++++++++++++++-- 5 files changed, 663 insertions(+), 55 deletions(-) diff --git a/src/core/types.rs b/src/core/types.rs index 2df5818..d66311e 100644 --- a/src/core/types.rs +++ b/src/core/types.rs @@ -91,10 +91,16 @@ pub struct ClientSession { pub is_initialized: bool, /// Whether the client's messages were encrypted. pub is_encrypted: bool, - /// Whether common discovery tags have been sent to this client. + /// Whether server discovery tags have been sent to this client (one-shot flag). pub has_sent_common_tags: bool, - /// Whether the client has demonstrated support for ephemeral gift wraps. + /// Whether the client has demonstrated support for ephemeral gift wraps (CEP-19). pub supports_ephemeral_gift_wrap: bool, + /// Learned from client discovery tags: peer supports NIP-44 encryption. + pub supports_encryption: bool, + /// Learned from client discovery tags: peer supports ephemeral gift wraps (CEP-19). + pub supports_ephemeral_encryption: bool, + /// Learned from client discovery tags: peer supports CEP-22 oversized transfer. + pub supports_oversized_transfer: bool, /// Last activity timestamp. pub last_activity: Instant, /// Pending requests: event_id → original request ID. @@ -111,6 +117,9 @@ impl ClientSession { is_encrypted, has_sent_common_tags: false, supports_ephemeral_gift_wrap: false, + supports_encryption: false, + supports_ephemeral_encryption: false, + supports_oversized_transfer: false, last_activity: Instant::now(), pending_requests: HashMap::new(), event_to_progress_token: HashMap::new(), diff --git a/src/transport/base.rs b/src/transport/base.rs index 781d58b..bacb9c0 100644 --- a/src/transport/base.rs +++ b/src/transport/base.rs @@ -232,6 +232,21 @@ impl BaseTransport { pub fn create_response_tags(pubkey: &PublicKey, event_id: &EventId) -> Vec { vec![Tag::public_key(*pubkey), Tag::event(*event_id)] } + + /// Compose outbound event tags in canonical order: + /// routing (p, e) -> discovery (one-shot caps) -> negotiation (pmi, persistent). + pub fn compose_outbound_tags( + base_tags: &[Tag], + discovery_tags: &[Tag], + negotiation_tags: &[Tag], + ) -> Vec { + let mut tags = + Vec::with_capacity(base_tags.len() + discovery_tags.len() + negotiation_tags.len()); + tags.extend_from_slice(base_tags); + tags.extend_from_slice(discovery_tags); + tags.extend_from_slice(negotiation_tags); + tags + } } #[cfg(test)] @@ -396,4 +411,57 @@ mod tests { let big = "x".repeat(MAX_MESSAGE_SIZE + 1); assert!(!crate::core::validation::validate_message_size(&big)); } + + // ── compose_outbound_tags ────────────────────────────────── + + fn make_custom_tag(name: &str) -> Tag { + Tag::custom(TagKind::Custom(name.into()), Vec::::new()) + } + + #[test] + fn compose_outbound_tags_ordering() { + let keys = Keys::generate(); + let base = vec![Tag::public_key(keys.public_key())]; + let discovery = vec![make_custom_tag("support_encryption")]; + let negotiation = vec![make_custom_tag("pmi")]; + + let result = BaseTransport::compose_outbound_tags(&base, &discovery, &negotiation); + assert_eq!(result.len(), 3); + assert_eq!(result[0].clone().to_vec()[0], "p"); + assert_eq!(result[1].clone().to_vec()[0], "support_encryption"); + assert_eq!(result[2].clone().to_vec()[0], "pmi"); + } + + #[test] + fn compose_outbound_tags_empty_discovery() { + let keys = Keys::generate(); + let base = vec![Tag::public_key(keys.public_key())]; + let negotiation = vec![make_custom_tag("pmi")]; + + let result = BaseTransport::compose_outbound_tags(&base, &[], &negotiation); + assert_eq!(result.len(), 2); + assert_eq!(result[0].clone().to_vec()[0], "p"); + assert_eq!(result[1].clone().to_vec()[0], "pmi"); + } + + #[test] + fn compose_outbound_tags_all_empty() { + let result = BaseTransport::compose_outbound_tags(&[], &[], &[]); + assert!(result.is_empty()); + } + + #[test] + fn compose_outbound_tags_preserves_all_elements() { + let discovery = vec![ + make_custom_tag("support_encryption"), + make_custom_tag("support_encryption_ephemeral"), + ]; + let result = BaseTransport::compose_outbound_tags(&[], &discovery, &[]); + assert_eq!(result.len(), 2); + assert_eq!(result[0].clone().to_vec()[0], "support_encryption"); + assert_eq!( + result[1].clone().to_vec()[0], + "support_encryption_ephemeral" + ); + } } diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 5a4e68f..022aee1 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -26,6 +26,7 @@ use crate::core::validation; use crate::encryption; use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; +use crate::transport::discovery_tags::learn_peer_capabilities; use crate::util::tracing_setup; @@ -333,8 +334,8 @@ impl NostrServerTransport { let original_request_id = route.original_request_id; let progress_token = route.progress_token; - let sessions = self.sessions.read().await; - let session = sessions.get(&client_pubkey_hex).ok_or_else(|| { + let mut sessions_w = self.sessions.write().await; + let session = sessions_w.get_mut(&client_pubkey_hex).ok_or_else(|| { tracing::error!( target: LOG_TARGET, client_pubkey = %client_pubkey_hex, @@ -351,7 +352,10 @@ impl NostrServerTransport { } let is_encrypted = session.is_encrypted; - drop(sessions); + + // CEP-35: include discovery tags on first response to this client + let discovery_tags = self.take_pending_server_discovery_tags(session); + drop(sessions_w); // CEP-19: Look up the incoming wrap kind for mirroring let mirrored_wrap_kind = self @@ -382,23 +386,8 @@ impl NostrServerTransport { Error::Other(error.to_string()) })?; - let mut tags = BaseTransport::create_response_tags(&client_pubkey, &event_id_parsed); - - // Send server info and capabilities on the first response. - let mut sent_common_tags = false; - let session_snapshot = self.sessions.get_session(&client_pubkey_hex).await; - if let Some(snap) = session_snapshot { - if !snap.has_sent_common_tags { - Self::append_common_response_tags( - &mut tags, - self.config.server_info.as_ref(), - &self.extra_common_tags, - self.config.encryption_mode, - self.config.gift_wrap_mode, - ); - sent_common_tags = true; - } - } + let base_tags = BaseTransport::create_response_tags(&client_pubkey, &event_id_parsed); + let tags = BaseTransport::compose_outbound_tags(&base_tags, &discovery_tags, &[]); if let Err(error) = self .base @@ -437,16 +426,7 @@ impl NostrServerTransport { return Err(error); } - if sent_common_tags { - self.sessions - .mark_common_tags_sent(&client_pubkey_hex) - .await; - } - - // Clean up only after successful send - self.event_routes.pop(event_id).await; - - // Clean up wrap-kind tracking and reverse mapping + // Clean up wrap-kind tracking self.request_wrap_kinds.write().await.remove(event_id); let mut sessions = self.sessions.write().await; @@ -477,23 +457,28 @@ impl NostrServerTransport { notification: &JsonRpcMessage, correlated_event_id: Option<&str>, ) -> Result<()> { - let sessions = self.sessions.read().await; + let mut sessions = self.sessions.write().await; let session = sessions - .get(client_pubkey_hex) + .get_mut(client_pubkey_hex) .ok_or_else(|| Error::Other(format!("No session for {client_pubkey_hex}")))?; let is_encrypted = session.is_encrypted; let supports_ephemeral = session.supports_ephemeral_gift_wrap; + + // CEP-35: include discovery tags on first message to this client + let discovery_tags = self.take_pending_server_discovery_tags(session); drop(sessions); let client_pubkey = PublicKey::from_hex(client_pubkey_hex).map_err(|e| Error::Other(e.to_string()))?; - let mut tags = BaseTransport::create_recipient_tags(&client_pubkey); + let mut base_tags = BaseTransport::create_recipient_tags(&client_pubkey); if let Some(eid) = correlated_event_id { let event_id = EventId::from_hex(eid).map_err(|e| Error::Other(e.to_string()))?; - tags.push(Tag::event(event_id)); + base_tags.push(Tag::event(event_id)); } + let tags = BaseTransport::compose_outbound_tags(&base_tags, &discovery_tags, &[]); + // CEP-19: Look up mirrored wrap kind from correlated request let correlated_wrap_kind = if let Some(event_id) = correlated_event_id { self.request_wrap_kinds @@ -732,6 +717,70 @@ impl NostrServerTransport { self.publish_resource_templates(templates).await } + // ── CEP-35 discovery tag helpers ────────────────────────────── + + /// Build common discovery tags from server config. + /// + /// Includes server info tags (name, about, website, picture) and capability + /// tags (support_encryption, support_encryption_ephemeral) based on the + /// transport's encryption and gift-wrap mode. + fn get_common_tags(&self) -> Vec { + let mut tags = Vec::new(); + + // Server info tags + if let Some(ref info) = self.config.server_info { + if let Some(ref name) = info.name { + tags.push(Tag::custom( + TagKind::Custom(tags::NAME.into()), + vec![name.clone()], + )); + } + if let Some(ref about) = info.about { + tags.push(Tag::custom( + TagKind::Custom(tags::ABOUT.into()), + vec![about.clone()], + )); + } + if let Some(ref website) = info.website { + tags.push(Tag::custom( + TagKind::Custom(tags::WEBSITE.into()), + vec![website.clone()], + )); + } + if let Some(ref picture) = info.picture { + tags.push(Tag::custom( + TagKind::Custom(tags::PICTURE.into()), + vec![picture.clone()], + )); + } + } + + // Capability tags + if self.config.encryption_mode != EncryptionMode::Disabled { + tags.push(Tag::custom( + TagKind::Custom(tags::SUPPORT_ENCRYPTION.into()), + Vec::::new(), + )); + if self.config.gift_wrap_mode.supports_ephemeral() { + tags.push(Tag::custom( + TagKind::Custom(tags::SUPPORT_ENCRYPTION_EPHEMERAL.into()), + Vec::::new(), + )); + } + } + + tags + } + + /// One-shot: returns common tags if not yet sent to this client, empty otherwise. + fn take_pending_server_discovery_tags(&self, session: &mut ClientSession) -> Vec { + if session.has_sent_common_tags { + return vec![]; + } + session.has_sent_common_tags = true; + self.get_common_tags() + } + // ── Internal ──────────────────────────────────────────────── fn is_capability_excluded( @@ -792,7 +841,7 @@ impl NostrServerTransport { continue; } - let (content, sender_pubkey, event_id, is_encrypted) = if is_gift_wrap { + let (content, sender_pubkey, event_id, is_encrypted, inner_tags) = if is_gift_wrap { if encryption_mode == EncryptionMode::Disabled { tracing::warn!( target: LOG_TARGET, @@ -848,11 +897,13 @@ impl NostrServerTransport { }; guard.put(event.id, ()); } + let inner_tags: Vec = inner.tags.to_vec(); ( inner.content, inner.pubkey.to_hex(), inner.id.to_hex(), true, + inner_tags, ) } Err(error) => { @@ -888,6 +939,7 @@ impl NostrServerTransport { event.pubkey.to_hex(), event.id.to_hex(), false, + event.tags.to_vec(), ) }; @@ -1014,6 +1066,16 @@ impl NostrServerTransport { session.supports_ephemeral_gift_wrap = true; } + // CEP-35: learn client capabilities from inner event tags + let discovered = learn_peer_capabilities(&inner_tags); + session.supports_encryption |= discovered.supports_encryption; + session.supports_ephemeral_encryption |= discovered.supports_ephemeral_encryption; + // Only learn oversized support if CEP-22 is enabled on this server + // TODO: wire from config when CEP-22 lands + let oversized_enabled = false; + session.supports_oversized_transfer |= + oversized_enabled && discovered.supports_oversized_transfer; + // Track request for correlation if let JsonRpcMessage::Request(ref req) = mcp_msg { let original_id = req.id.clone(); @@ -1449,7 +1511,6 @@ mod tests { #[test] fn test_select_outbound_gift_wrap_kind_plaintext() { - // Plaintext: no encryption regardless of mode assert_eq!( NostrServerTransport::select_outbound_gift_wrap_kind( GiftWrapMode::Optional, @@ -1462,7 +1523,6 @@ mod tests { #[test] fn test_select_outbound_gift_wrap_kind_mirrors_incoming() { - // Mirrors ephemeral kind when Optional mode allows it assert_eq!( NostrServerTransport::select_outbound_gift_wrap_kind( GiftWrapMode::Optional, @@ -1475,7 +1535,6 @@ mod tests { #[test] fn test_select_outbound_gift_wrap_kind_persistent_mode_overrides_ephemeral() { - // Persistent mode: ephemeral mirror ignored, falls back to GIFT_WRAP_KIND assert_eq!( NostrServerTransport::select_outbound_gift_wrap_kind( GiftWrapMode::Persistent, @@ -1660,4 +1719,36 @@ mod tests { .and_then(|t| t.clone().to_vec().get(1).cloned()); assert_eq!(tag_value.as_deref(), Some("value")); } + + // ── CEP-35 discovery tag helpers ──────────────────────────── + + #[test] + fn test_cep35_client_session_new_fields_default_false() { + let session = ClientSession::new(false); + assert!(!session.has_sent_common_tags); + assert!(!session.supports_encryption); + assert!(!session.supports_ephemeral_encryption); + assert!(!session.supports_oversized_transfer); + } + + #[test] + fn test_cep35_capability_or_assign() { + let mut session = ClientSession::new(false); + + session.supports_encryption |= true; + session.supports_ephemeral_encryption |= false; + + session.supports_encryption |= false; + session.supports_ephemeral_encryption |= true; + + assert!(session.supports_encryption, "OR-assign must not downgrade"); + assert!(session.supports_ephemeral_encryption); + assert!(!session.supports_oversized_transfer); + } + + #[test] + fn test_config_gift_wrap_mode_default() { + let config = NostrServerTransportConfig::default(); + assert_eq!(config.gift_wrap_mode, GiftWrapMode::Optional); + } } diff --git a/src/transport/server/session_store.rs b/src/transport/server/session_store.rs index 7f29e25..6188482 100644 --- a/src/transport/server/session_store.rs +++ b/src/transport/server/session_store.rs @@ -218,4 +218,124 @@ mod tests { assert!(keys.contains(&"client-1")); assert!(keys.contains(&"client-2")); } + + // ── CEP-35 capability fields ──────────────────────────────── + + #[tokio::test] + async fn new_session_capability_fields_default_false() { + let store = SessionStore::new(); + store.get_or_create_session("client-1", false).await; + + let sessions = store.read().await; + let session = sessions.get("client-1").unwrap(); + assert!(!session.has_sent_common_tags); + assert!(!session.supports_encryption); + assert!(!session.supports_ephemeral_encryption); + assert!(!session.supports_oversized_transfer); + } + + #[tokio::test] + async fn has_sent_common_tags_flag() { + let store = SessionStore::new(); + store.get_or_create_session("client-1", false).await; + + let mut sessions = store.write().await; + let session = sessions.get_mut("client-1").unwrap(); + assert!(!session.has_sent_common_tags); + session.has_sent_common_tags = true; + assert!(session.has_sent_common_tags); + } + + #[tokio::test] + async fn capability_or_assign_persists() { + let store = SessionStore::new(); + store.get_or_create_session("client-1", false).await; + + // First update: learn encryption support + { + let mut sessions = store.write().await; + let session = sessions.get_mut("client-1").unwrap(); + session.supports_encryption |= true; + session.supports_ephemeral_encryption |= false; + } + + // Second update: learn ephemeral support; encryption stays true + { + let mut sessions = store.write().await; + let session = sessions.get_mut("client-1").unwrap(); + session.supports_encryption |= false; // should stay true + session.supports_ephemeral_encryption |= true; + } + + let sessions = store.read().await; + let session = sessions.get("client-1").unwrap(); + assert!(session.supports_encryption, "OR-assign must not downgrade"); + assert!(session.supports_ephemeral_encryption); + assert!(!session.supports_oversized_transfer); + } + + #[tokio::test] + async fn capability_fields_independent_per_client() { + let store = SessionStore::new(); + store.get_or_create_session("client-a", false).await; + store.get_or_create_session("client-b", false).await; + + { + let mut sessions = store.write().await; + let sa = sessions.get_mut("client-a").unwrap(); + sa.supports_encryption = true; + sa.has_sent_common_tags = true; + } + + let sessions = store.read().await; + let sa = sessions.get("client-a").unwrap(); + let sb = sessions.get("client-b").unwrap(); + assert!(sa.supports_encryption); + assert!(sa.has_sent_common_tags); + assert!(!sb.supports_encryption); + assert!(!sb.has_sent_common_tags); + } + + #[tokio::test] + async fn get_or_create_preserves_capability_fields() { + let store = SessionStore::new(); + store.get_or_create_session("client-1", false).await; + + // Set capability fields + { + let mut sessions = store.write().await; + let session = sessions.get_mut("client-1").unwrap(); + session.supports_encryption = true; + session.has_sent_common_tags = true; + } + + // Re-enter via get_or_create (existing session) + let created = store.get_or_create_session("client-1", true).await; + assert!(!created); + + // Capability fields must survive + let sessions = store.read().await; + let session = sessions.get("client-1").unwrap(); + assert!(session.supports_encryption); + assert!(session.has_sent_common_tags); + } + + #[tokio::test] + async fn clear_resets_capability_fields() { + let store = SessionStore::new(); + store.get_or_create_session("client-1", false).await; + { + let mut sessions = store.write().await; + let s = sessions.get_mut("client-1").unwrap(); + s.supports_encryption = true; + } + + store.clear().await; + store.get_or_create_session("client-1", false).await; + + let sessions = store.read().await; + let session = sessions.get("client-1").unwrap(); + assert!(!session.supports_encryption); + assert!(!session.has_sent_common_tags); + } } diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index a51ee8b..e84d5b9 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -12,11 +12,13 @@ use std::sync::{ use std::time::Duration; use async_trait::async_trait; +use contextvm_sdk::core::constants::tags; use contextvm_sdk::core::constants::{ - mcp_protocol_version, CTXVM_MESSAGES_KIND, GIFT_WRAP_KIND, PROMPTS_LIST_KIND, - RESOURCES_LIST_KIND, RESOURCETEMPLATES_LIST_KIND, SERVER_ANNOUNCEMENT_KIND, TOOLS_LIST_KIND, + mcp_protocol_version, CTXVM_MESSAGES_KIND, EPHEMERAL_GIFT_WRAP_KIND, GIFT_WRAP_KIND, + PROMPTS_LIST_KIND, RESOURCES_LIST_KIND, RESOURCETEMPLATES_LIST_KIND, SERVER_ANNOUNCEMENT_KIND, + TOOLS_LIST_KIND, }; -use contextvm_sdk::core::types::EncryptionMode; +use contextvm_sdk::core::types::{EncryptionMode, GiftWrapMode}; use contextvm_sdk::relay::mock::MockRelayPool; use contextvm_sdk::transport::client::{NostrClientTransport, NostrClientTransportConfig}; use contextvm_sdk::transport::server::{NostrServerTransport, NostrServerTransportConfig}; @@ -2330,7 +2332,7 @@ async fn announced_server_does_not_error_on_unauthorized_notification() { ); } -// ── 31. First response includes discovery tags ────────────────────────────── +// ── 31. First response includes discovery tags (upstream CEP-19) ───────────── #[tokio::test(flavor = "multi_thread", worker_threads = 2)] async fn first_response_includes_discovery_tags() { @@ -2346,7 +2348,7 @@ async fn first_response_includes_discovery_tags() { ..Default::default() }), encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: contextvm_sdk::core::types::GiftWrapMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, ..Default::default() }, Arc::clone(&s_pool) as Arc, @@ -2429,7 +2431,7 @@ async fn first_response_includes_discovery_tags() { let events = s_pool.stored_events().await; let responses: Vec<_> = events .iter() - .filter(|e| e.kind == Kind::Custom(contextvm_sdk::core::constants::CTXVM_MESSAGES_KIND)) + .filter(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND)) .cloned() .collect(); @@ -2472,7 +2474,7 @@ async fn notification_mirror_selection_wrt_cep_19() { let mut server = NostrServerTransport::with_relay_pool( NostrServerTransportConfig { encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: contextvm_sdk::core::types::GiftWrapMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, ..Default::default() }, Arc::clone(&s_pool) as Arc, @@ -2484,7 +2486,7 @@ async fn notification_mirror_selection_wrt_cep_19() { NostrClientTransportConfig { server_pubkey: server_pubkey.to_hex(), encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: contextvm_sdk::core::types::GiftWrapMode::Ephemeral, // Forces client to use Ephemeral + gift_wrap_mode: GiftWrapMode::Ephemeral, ..Default::default() }, as_pool(client_pool), @@ -2500,7 +2502,6 @@ async fn notification_mirror_selection_wrt_cep_19() { client.start().await.expect("client start"); let_event_loops_start().await; - // Send a request. It should be encrypted and wrapped with Ephemeral (21059) let request1 = JsonRpcMessage::Request(JsonRpcRequest { jsonrpc: "2.0".to_string(), id: serde_json::json!("req-1"), @@ -2514,7 +2515,6 @@ async fn notification_mirror_selection_wrt_cep_19() { .expect("timeout") .expect("channel closed"); - // Reply with a correlated notification let notification = JsonRpcMessage::Notification(JsonRpcNotification { jsonrpc: "2.0".to_string(), method: "notifications/progress".to_string(), @@ -2529,19 +2529,339 @@ async fn notification_mirror_selection_wrt_cep_19() { .await .expect("send notification"); - // The notification should have been sent as an Ephemeral Gift Wrap (21059) let events = s_pool.stored_events().await; let ephemeral_wraps: Vec<_> = events .iter() - .filter(|e| { - e.kind == Kind::Custom(contextvm_sdk::core::constants::EPHEMERAL_GIFT_WRAP_KIND) - }) + .filter(|e| e.kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND)) .cloned() .collect(); - // 1 from client (request), 1 from server (notification). The client also sends other msgs? assert!( ephemeral_wraps.len() >= 2, "Expected ephemeral wraps for both request and notification" ); } + +// ── CEP-35: Server-side discovery tag emission & capability learning ───────── + +fn event_tag_vecs(event: &Event) -> Vec> { + event.tags.iter().map(|t| t.clone().to_vec()).collect() +} + +fn has_tag_name(event: &Event, name: &str) -> bool { + event_tag_vecs(event) + .iter() + .any(|v| v.first().map(|s| s.as_str()) == Some(name)) +} + +fn get_tag_value(event: &Event, name: &str) -> Option { + event_tag_vecs(event).iter().find_map(|v| { + if v.first().map(|s| s.as_str()) == Some(name) { + v.get(1).cloned() + } else { + None + } + }) +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn server_response_includes_encryption_tags_when_enabled() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool_arc = Arc::new(server_pool); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + ..Default::default() + }, + Arc::clone(&server_pool_arc) as Arc, + ) + .await + .unwrap(); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .unwrap(); + + let mut server_rx = server.take_message_receiver().unwrap(); + let mut client_rx = client.take_message_receiver().unwrap(); + server.start().await.unwrap(); + client.start().await.unwrap(); + let_event_loops_start().await; + + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: None, + })) + .await + .unwrap(); + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .unwrap() + .unwrap(); + server + .send_response( + &incoming.event_id, + JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + result: serde_json::json!({}), + }), + ) + .await + .unwrap(); + let _ = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .unwrap(); + + let events = server_pool_arc.stored_events().await; + let response_event = events + .iter() + .find(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND) && has_tag_name(e, "e")) + .expect("response event must exist"); + + assert!( + has_tag_name(response_event, tags::SUPPORT_ENCRYPTION), + "first response must include support_encryption when mode != Disabled" + ); + assert!( + has_tag_name(response_event, tags::SUPPORT_ENCRYPTION_EPHEMERAL), + "first response must include support_encryption_ephemeral when GiftWrapMode != Persistent" + ); +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn server_response_excludes_ephemeral_tag_when_persistent() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool_arc = Arc::new(server_pool); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Persistent, + ..Default::default() + }, + Arc::clone(&server_pool_arc) as Arc, + ) + .await + .unwrap(); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .unwrap(); + + let mut server_rx = server.take_message_receiver().unwrap(); + let mut client_rx = client.take_message_receiver().unwrap(); + server.start().await.unwrap(); + client.start().await.unwrap(); + let_event_loops_start().await; + + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: None, + })) + .await + .unwrap(); + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .unwrap() + .unwrap(); + server + .send_response( + &incoming.event_id, + JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + result: serde_json::json!({}), + }), + ) + .await + .unwrap(); + let _ = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .unwrap(); + + let events = server_pool_arc.stored_events().await; + let response_event = events + .iter() + .find(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND) && has_tag_name(e, "e")) + .unwrap(); + + assert!( + has_tag_name(response_event, tags::SUPPORT_ENCRYPTION), + "support_encryption must be present" + ); + assert!( + !has_tag_name(response_event, tags::SUPPORT_ENCRYPTION_EPHEMERAL), + "support_encryption_ephemeral must NOT be present when GiftWrapMode is Persistent" + ); +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn server_learns_capabilities_from_client_request() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .unwrap(); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .unwrap(); + + let mut server_rx = server.take_message_receiver().unwrap(); + server.start().await.unwrap(); + client.start().await.unwrap(); + let_event_loops_start().await; + + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: None, + })) + .await + .unwrap(); + + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .unwrap() + .unwrap(); + + assert_eq!(incoming.message.method(), Some("initialize")); + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(2), + method: "tools/list".to_string(), + params: None, + })) + .await + .unwrap(); + let incoming2 = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .unwrap() + .unwrap(); + assert_eq!(incoming2.message.method(), Some("tools/list")); + assert_eq!(incoming.client_pubkey, incoming2.client_pubkey); +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn server_disabled_encryption_omits_encryption_tags() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool_arc = Arc::new(server_pool); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + server_info: Some(ServerInfo { + name: Some("NoEncrypt".to_string()), + ..Default::default() + }), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + Arc::clone(&server_pool_arc) as Arc, + ) + .await + .unwrap(); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .unwrap(); + + let mut server_rx = server.take_message_receiver().unwrap(); + let mut client_rx = client.take_message_receiver().unwrap(); + server.start().await.unwrap(); + client.start().await.unwrap(); + let_event_loops_start().await; + + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: None, + })) + .await + .unwrap(); + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .unwrap() + .unwrap(); + server + .send_response( + &incoming.event_id, + JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + result: serde_json::json!({}), + }), + ) + .await + .unwrap(); + let _ = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .unwrap(); + + let events = server_pool_arc.stored_events().await; + let response_event = events + .iter() + .find(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND) && has_tag_name(e, "e")) + .unwrap(); + + assert!(has_tag_name(response_event, tags::NAME)); + assert!( + !has_tag_name(response_event, tags::SUPPORT_ENCRYPTION), + "encryption tags must be omitted when EncryptionMode is Disabled" + ); + assert!(!has_tag_name( + response_event, + tags::SUPPORT_ENCRYPTION_EPHEMERAL + )); +} From 378ae4d7e1552fcb4eed0c43a264b846a5fd856f Mon Sep 17 00:00:00 2001 From: Harsh Date: Sun, 3 May 2026 00:52:02 +0530 Subject: [PATCH 057/116] feat: client discovery tag emission and capability learning for CEP-35 --- src/transport/client/mod.rs | 407 +++++++++++++++++++++++++++------ tests/transport_integration.rs | 196 ++++++++++++++++ 2 files changed, 534 insertions(+), 69 deletions(-) diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index 675be02..65aa47b 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -23,6 +23,7 @@ use crate::core::validation; use crate::encryption; use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; +use crate::transport::discovery_tags::{parse_discovered_peer_capabilities, PeerCapabilities}; use crate::util::tracing_setup; @@ -67,6 +68,12 @@ pub struct NostrClientTransport { server_pubkey: PublicKey, /// Pending request event IDs awaiting responses. pending_requests: ClientCorrelationStore, + /// CEP-35: one-shot flag for client discovery tag emission. + has_sent_discovery_tags: AtomicBool, + /// CEP-35: learned server capabilities from inbound discovery tags. + discovered_server_capabilities: Arc>, + /// CEP-35: first inbound event carrying discovery tags (session baseline). + server_initialize_event: Arc>>, /// Learned support for server-side ephemeral gift wraps. server_supports_ephemeral: Arc, /// Outer gift-wrap event IDs successfully decrypted and verified (inner `verify()`). @@ -126,6 +133,9 @@ impl NostrClientTransport { config, server_pubkey, pending_requests: ClientCorrelationStore::new(), + has_sent_discovery_tags: AtomicBool::new(false), + discovered_server_capabilities: Arc::new(Mutex::new(PeerCapabilities::default())), + server_initialize_event: Arc::new(Mutex::new(None)), server_supports_ephemeral: Arc::new(AtomicBool::new(false)), seen_gift_wrap_ids, message_tx: tx, @@ -171,6 +181,9 @@ impl NostrClientTransport { config, server_pubkey, pending_requests: ClientCorrelationStore::new(), + has_sent_discovery_tags: AtomicBool::new(false), + discovered_server_capabilities: Arc::new(Mutex::new(PeerCapabilities::default())), + server_initialize_event: Arc::new(Mutex::new(None)), server_supports_ephemeral: Arc::new(AtomicBool::new(false)), seen_gift_wrap_ids, message_tx: tx, @@ -226,6 +239,8 @@ impl NostrClientTransport { let tx = self.message_tx.clone(); let encryption_mode = self.config.encryption_mode; let gift_wrap_mode = self.config.gift_wrap_mode; + let discovered_caps = self.discovered_server_capabilities.clone(); + let init_event = self.server_initialize_event.clone(); let server_supports_ephemeral = self.server_supports_ephemeral.clone(); let seen_gift_wrap_ids = self.seen_gift_wrap_ids.clone(); @@ -237,6 +252,8 @@ impl NostrClientTransport { tx, encryption_mode, gift_wrap_mode, + discovered_caps, + init_event, server_supports_ephemeral, seen_gift_wrap_ids, ) @@ -273,7 +290,14 @@ impl NostrClientTransport { } } - let tags = BaseTransport::create_recipient_tags(&self.server_pubkey); + let is_request = message.is_request(); + let base_tags = BaseTransport::create_recipient_tags(&self.server_pubkey); + let discovery_tags = if is_request { + self.get_pending_client_discovery_tags() + } else { + vec![] + }; + let tags = BaseTransport::compose_outbound_tags(&base_tags, &discovery_tags, &[]); let (event_id, publishable_event) = self .base @@ -316,6 +340,11 @@ impl NostrClientTransport { return Err(error); } + // Flip one-shot flag only after successful publish + if is_request && !discovery_tags.is_empty() { + self.has_sent_discovery_tags.store(true, Ordering::Relaxed); + } + tracing::debug!( target: LOG_TARGET, event_id = %event_id.to_hex(), @@ -360,6 +389,8 @@ impl NostrClientTransport { tx: tokio::sync::mpsc::UnboundedSender, encryption_mode: EncryptionMode, gift_wrap_mode: GiftWrapMode, + discovered_caps: Arc>, + init_event: Arc>>, server_supports_ephemeral: Arc, seen_gift_wrap_ids: Arc>>, ) { @@ -403,81 +434,91 @@ impl NostrClientTransport { } // Handle gift-wrapped events - let (actual_event_content, actual_pubkey, e_tag, verified_tags) = if is_gift_wrap { - { - let guard = match seen_gift_wrap_ids.lock() { - Ok(g) => g, - Err(poisoned) => poisoned.into_inner(), - }; - if guard.contains(&event.id) { - tracing::debug!( - target: LOG_TARGET, - event_id = %event.id.to_hex(), - "Skipping duplicate gift-wrap (outer id)" - ); - continue; - } - } - // Single-layer NIP-44 decrypt (matches JS/TS SDK) - let signer = match relay_pool.signer().await { - Ok(s) => s, - Err(error) => { - tracing::error!( - target: LOG_TARGET, - error = %error, - "Failed to get signer" - ); - continue; + let (actual_event_content, actual_pubkey, e_tag, verified_tags, source_event) = + if is_gift_wrap { + { + let guard = match seen_gift_wrap_ids.lock() { + Ok(g) => g, + Err(poisoned) => poisoned.into_inner(), + }; + if guard.contains(&event.id) { + tracing::debug!( + target: LOG_TARGET, + event_id = %event.id.to_hex(), + "Skipping duplicate gift-wrap (outer id)" + ); + continue; + } } - }; - match encryption::decrypt_gift_wrap_single_layer(&signer, &event).await { - Ok(decrypted_json) => { - match serde_json::from_str::(&decrypted_json) { - Ok(inner) => { - if let Err(e) = inner.verify() { - tracing::warn!( - "Inner event signature verification failed: {e}" + // Single-layer NIP-44 decrypt (matches JS/TS SDK) + let signer = match relay_pool.signer().await { + Ok(s) => s, + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to get signer" + ); + continue; + } + }; + match encryption::decrypt_gift_wrap_single_layer(&signer, &event).await { + Ok(decrypted_json) => { + match serde_json::from_str::(&decrypted_json) { + Ok(inner) => { + if let Err(e) = inner.verify() { + tracing::warn!( + "Inner event signature verification failed: {e}" + ); + continue; + } + { + let mut guard = match seen_gift_wrap_ids.lock() { + Ok(g) => g, + Err(poisoned) => poisoned.into_inner(), + }; + guard.put(event.id, ()); + } + let e_tag = serializers::get_tag_value(&inner.tags, "e"); + let inner_clone = inner.clone(); + ( + inner.content, + inner.pubkey, + e_tag, + inner.tags, + inner_clone, + ) + } + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to parse inner event" ); continue; } - { - let mut guard = match seen_gift_wrap_ids.lock() { - Ok(g) => g, - Err(poisoned) => poisoned.into_inner(), - }; - guard.put(event.id, ()); - } - let e_tag = serializers::get_tag_value(&inner.tags, "e"); - (inner.content, inner.pubkey, e_tag, inner.tags) - } - Err(error) => { - tracing::error!( - target: LOG_TARGET, - error = %error, - "Failed to parse inner event" - ); - continue; } } + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to decrypt gift wrap" + ); + continue; + } } - Err(error) => { - tracing::error!( - target: LOG_TARGET, - error = %error, - "Failed to decrypt gift wrap" - ); - continue; - } - } - } else { - let e_tag = serializers::get_tag_value(&event.tags, "e"); - ( - event.content.clone(), - event.pubkey, - e_tag, - event.tags.clone(), - ) - }; + } else { + let e_tag = serializers::get_tag_value(&event.tags, "e"); + let event_clone = (*event).clone(); + ( + event.content.clone(), + event.pubkey, + e_tag, + event.tags.clone(), + event_clone, + ) + }; // Verify it's from our server if actual_pubkey != server_pubkey { @@ -490,6 +531,9 @@ impl NostrClientTransport { continue; } + // CEP-35: learn server capabilities from discovery tags + Self::learn_server_discovery(&discovered_caps, &init_event, &source_event); + // CEP-19: learn ephemeral support from server if Self::should_learn_ephemeral_support( actual_pubkey, @@ -547,6 +591,88 @@ impl NostrClientTransport { } } + // ── CEP-35 discovery tag helpers ────────────────────────────── + + /// Constructs client capability tags based on config. + fn get_client_capability_tags(&self) -> Vec { + let mut tags = Vec::new(); + if self.config.encryption_mode != EncryptionMode::Disabled { + tags.push(Tag::custom( + TagKind::Custom(tags::SUPPORT_ENCRYPTION.into()), + Vec::::new(), + )); + if self.config.gift_wrap_mode != GiftWrapMode::Persistent { + tags.push(Tag::custom( + TagKind::Custom(tags::SUPPORT_ENCRYPTION_EPHEMERAL.into()), + Vec::::new(), + )); + } + } + tags + } + + /// One-shot: returns capability tags if not yet sent, empty otherwise. + fn get_pending_client_discovery_tags(&self) -> Vec { + if self.has_sent_discovery_tags.load(Ordering::Relaxed) { + vec![] + } else { + self.get_client_capability_tags() + } + } + + /// Parses inbound event tags and updates learned server capabilities. + fn learn_server_discovery( + discovered_caps: &Mutex, + init_event: &Mutex>, + event: &Event, + ) { + let tag_vec: Vec = event.tags.clone().to_vec(); + let discovered = parse_discovered_peer_capabilities(&tag_vec); + if discovered.discovery_tags.is_empty() { + return; + } + + { + let mut caps = match discovered_caps.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + caps.supports_encryption |= discovered.capabilities.supports_encryption; + caps.supports_ephemeral_encryption |= + discovered.capabilities.supports_ephemeral_encryption; + caps.supports_oversized_transfer |= discovered.capabilities.supports_oversized_transfer; + } + + let mut stored = match init_event.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + if stored.is_none() { + *stored = Some(event.clone()); + } + // Note: TS SDK has an upgrade path where a later event with an InitializeResult + // replaces a non-initialize baseline. Not implemented here -- edge case only + // relevant if the first server message with discovery tags is a notification. + } + + /// Returns a clone of the first inbound event that carried server discovery tags. + pub fn get_server_initialize_event(&self) -> Option { + let guard = match self.server_initialize_event.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + guard.clone() + } + + /// Returns a snapshot of the learned server capabilities from discovery tags. + pub fn discovered_server_capabilities(&self) -> PeerCapabilities { + let guard = match self.discovered_server_capabilities.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + *guard + } + fn choose_outbound_gift_wrap_kind(&self) -> u16 { match self.config.gift_wrap_mode { GiftWrapMode::Persistent => GIFT_WRAP_KIND, @@ -820,4 +946,147 @@ mod tests { "Disabled mode must accept plaintext events" ); } + + // ── CEP-35 client discovery tag emission ──────────────────── + + fn make_transport_for_tags( + encryption_mode: EncryptionMode, + gift_wrap_mode: GiftWrapMode, + ) -> NostrClientTransport { + let keys = Keys::generate(); + NostrClientTransport { + base: BaseTransport { + relay_pool: Arc::new(crate::relay::mock::MockRelayPool::new()), + encryption_mode, + is_connected: false, + }, + config: NostrClientTransportConfig { + encryption_mode, + gift_wrap_mode, + server_pubkey: Keys::generate().public_key().to_hex(), + ..Default::default() + }, + server_pubkey: keys.public_key(), + pending_requests: ClientCorrelationStore::new(), + has_sent_discovery_tags: AtomicBool::new(false), + discovered_server_capabilities: Arc::new(Mutex::new(PeerCapabilities::default())), + server_initialize_event: Arc::new(Mutex::new(None)), + server_supports_ephemeral: Arc::new(AtomicBool::new(false)), + seen_gift_wrap_ids: Arc::new(Mutex::new(LruCache::new(NonZeroUsize::new(10).unwrap()))), + message_tx: tokio::sync::mpsc::unbounded_channel().0, + message_rx: None, + } + } + + fn make_tag(parts: &[&str]) -> Tag { + let kind = TagKind::Custom(parts[0].into()); + let values: Vec = parts[1..].iter().map(|s| s.to_string()).collect(); + Tag::custom(kind, values) + } + + fn tag_names(tags: &[Tag]) -> Vec { + tags.iter().map(|t| t.clone().to_vec()[0].clone()).collect() + } + + #[test] + fn client_capability_tags_encryption_optional() { + let t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Optional); + let tags = t.get_client_capability_tags(); + let names = tag_names(&tags); + assert_eq!( + names, + vec!["support_encryption", "support_encryption_ephemeral"] + ); + } + + #[test] + fn client_capability_tags_encryption_disabled() { + let t = make_transport_for_tags(EncryptionMode::Disabled, GiftWrapMode::Optional); + let tags = t.get_client_capability_tags(); + assert!(tags.is_empty()); + } + + #[test] + fn client_capability_tags_persistent_gift_wrap() { + let t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Persistent); + let tags = t.get_client_capability_tags(); + let names = tag_names(&tags); + assert_eq!(names, vec!["support_encryption"]); + } + + #[test] + fn client_discovery_tags_sent_once() { + let t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Optional); + let first = t.get_pending_client_discovery_tags(); + assert!(!first.is_empty()); + + t.has_sent_discovery_tags.store(true, Ordering::Relaxed); + let second = t.get_pending_client_discovery_tags(); + assert!(second.is_empty()); + } + + // ── CEP-35 client capability learning ─────────────────────── + + fn make_event_with_tags(tag_parts: &[&[&str]]) -> Event { + let keys = Keys::generate(); + let tags: Vec = tag_parts.iter().map(|p| make_tag(p)).collect(); + let builder = EventBuilder::new(Kind::Custom(CTXVM_MESSAGES_KIND), "{}").tags(tags); + let unsigned = builder.build(keys.public_key()); + unsigned.sign_with_keys(&keys).unwrap() + } + + #[test] + fn client_learn_server_discovery_sets_baseline() { + let caps = Mutex::new(PeerCapabilities::default()); + let init = Mutex::new(None); + let event = make_event_with_tags(&[&["support_encryption"], &["name", "TestServer"]]); + + NostrClientTransport::learn_server_discovery(&caps, &init, &event); + + let c = caps.lock().unwrap(); + assert!(c.supports_encryption); + assert!(!c.supports_ephemeral_encryption); + + let stored = init.lock().unwrap(); + assert!(stored.is_some()); + assert_eq!(stored.as_ref().unwrap().id, event.id); + } + + #[test] + fn client_learn_server_discovery_or_assigns() { + let caps = Mutex::new(PeerCapabilities::default()); + let init = Mutex::new(None); + + let event1 = make_event_with_tags(&[&["support_encryption"]]); + NostrClientTransport::learn_server_discovery(&caps, &init, &event1); + + // Second event with different caps does NOT downgrade + let event2 = make_event_with_tags(&[&["support_encryption_ephemeral"]]); + NostrClientTransport::learn_server_discovery(&caps, &init, &event2); + + let c = caps.lock().unwrap(); + assert!(c.supports_encryption, "must not downgrade"); + assert!(c.supports_ephemeral_encryption, "must learn new cap"); + } + + #[test] + fn client_baseline_not_replaced_on_later_events() { + let caps = Mutex::new(PeerCapabilities::default()); + let init = Mutex::new(None); + + let event1 = make_event_with_tags(&[&["support_encryption"], &["name", "First"]]); + NostrClientTransport::learn_server_discovery(&caps, &init, &event1); + let first_id = event1.id; + + let event2 = + make_event_with_tags(&[&["support_encryption_ephemeral"], &["name", "Second"]]); + NostrClientTransport::learn_server_discovery(&caps, &init, &event2); + + let stored = init.lock().unwrap(); + assert_eq!( + stored.as_ref().unwrap().id, + first_id, + "baseline must not be replaced" + ); + } } diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index e84d5b9..0d78b97 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -2865,3 +2865,199 @@ async fn server_disabled_encryption_omits_encryption_tags() { tags::SUPPORT_ENCRYPTION_EPHEMERAL )); } + +// ── CEP-35: Client-side discovery tag emission & capability learning ───────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn client_disabled_encryption_emits_no_discovery_tags() { + // Disabled encryption: client must not emit cap tags. Positive case (Optional + // mode emits tags) is covered by unit test client_capability_tags_encryption_optional. + let pool = Arc::new(MockRelayPool::new()); + let server_keys = Keys::generate(); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_keys.public_key().to_hex(), + encryption_mode: EncryptionMode::Disabled, + gift_wrap_mode: GiftWrapMode::Optional, + ..Default::default() + }, + Arc::clone(&pool) as Arc, + ) + .await + .unwrap(); + + client.start().await.unwrap(); + let_event_loops_start().await; + + // With Disabled encryption, no cap tags are emitted (correct per spec). + // Verify the event is published with p tag but without cap tags. + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: None, + })) + .await + .unwrap(); + + let events = pool.stored_events().await; + let client_event = events + .iter() + .find(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND)) + .expect("client must publish a request event"); + + // p tag must be present (routing) + assert!(has_tag_name(client_event, "p")); + // No encryption tags when Disabled (the unit test covers the Optional case) + assert!( + !has_tag_name(client_event, tags::SUPPORT_ENCRYPTION), + "Disabled client must not emit support_encryption" + ); +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn client_second_request_carries_no_discovery_tags() { + // Second request must never carry discovery tags. One-shot flag behavior + // is covered by unit test client_discovery_tags_sent_once. + let pool = Arc::new(MockRelayPool::new()); + let server_keys = Keys::generate(); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_keys.public_key().to_hex(), + encryption_mode: EncryptionMode::Disabled, + gift_wrap_mode: GiftWrapMode::Optional, + ..Default::default() + }, + Arc::clone(&pool) as Arc, + ) + .await + .unwrap(); + + client.start().await.unwrap(); + let_event_loops_start().await; + + // First request + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: None, + })) + .await + .unwrap(); + + // Second request + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(2), + method: "tools/list".to_string(), + params: None, + })) + .await + .unwrap(); + + let events = pool.stored_events().await; + let ctxvm_events: Vec<&Event> = events + .iter() + .filter(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND)) + .collect(); + assert!(ctxvm_events.len() >= 2); + + let second_event = ctxvm_events + .iter() + .find(|e| e.content.contains("tools/list")) + .expect("second request event must exist"); + + assert!( + !has_tag_name(second_event, tags::SUPPORT_ENCRYPTION), + "second request must NOT include discovery tags" + ); +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn client_learns_server_capabilities_from_first_response() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + server_info: Some(ServerInfo { + name: Some("CapServer".to_string()), + ..Default::default() + }), + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .unwrap(); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .unwrap(); + + let mut server_rx = server.take_message_receiver().unwrap(); + let mut client_rx = client.take_message_receiver().unwrap(); + server.start().await.unwrap(); + client.start().await.unwrap(); + let_event_loops_start().await; + + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: None, + })) + .await + .unwrap(); + + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .unwrap() + .unwrap(); + + server + .send_response( + &incoming.event_id, + JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + result: serde_json::json!({}), + }), + ) + .await + .unwrap(); + + let _ = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .unwrap(); + + // Client should have learned capabilities from server's first response + let caps = client.discovered_server_capabilities(); + assert!( + caps.supports_encryption, + "client must learn support_encryption from server response tags" + ); + assert!( + caps.supports_ephemeral_encryption, + "client must learn support_encryption_ephemeral from server response tags" + ); + + let baseline = client.get_server_initialize_event(); + assert!(baseline.is_some(), "baseline event must be set"); +} From 9fb41792b25c6e245b6f82d750af28eb3b35abef Mon Sep 17 00:00:00 2001 From: Harsh Date: Tue, 5 May 2026 02:06:20 +0530 Subject: [PATCH 058/116] test: add integration tests for CEP-35 OR-assign, baseline freeze, and discovery tag emission --- src/relay/mock.rs | 5 + tests/transport_integration.rs | 307 +++++++++++++++++++++++++++++++-- 2 files changed, 302 insertions(+), 10 deletions(-) diff --git a/src/relay/mock.rs b/src/relay/mock.rs index 52e52bc..a950235 100644 --- a/src/relay/mock.rs +++ b/src/relay/mock.rs @@ -70,6 +70,11 @@ impl MockRelayPool { self.keys.public_key() } + /// The ephemeral signing keys (for manual event injection in tests). + pub fn mock_keys(&self) -> Keys { + self.keys.clone() + } + /// Like [`new`](Self::new) but with caller-provided signing keys. pub fn with_keys(keys: Keys) -> Self { let (tx, _rx) = tokio::sync::broadcast::channel(1024); diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index 0d78b97..e1c4914 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -2554,16 +2554,6 @@ fn has_tag_name(event: &Event, name: &str) -> bool { .any(|v| v.first().map(|s| s.as_str()) == Some(name)) } -fn get_tag_value(event: &Event, name: &str) -> Option { - event_tag_vecs(event).iter().find_map(|v| { - if v.first().map(|s| s.as_str()) == Some(name) { - v.get(1).cloned() - } else { - None - } - }) -} - #[tokio::test(flavor = "multi_thread", worker_threads = 2)] async fn server_response_includes_encryption_tags_when_enabled() { let (client_pool, server_pool) = MockRelayPool::create_pair(); @@ -3061,3 +3051,300 @@ async fn client_learns_server_capabilities_from_first_response() { let baseline = client.get_server_initialize_event(); assert!(baseline.is_some(), "baseline event must be set"); } + +// ── CEP-35: OR-assign, baseline-freeze, and Optional emission ──────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn client_or_assigns_capabilities_across_responses() { + // Server with Persistent gift-wrap emits support_encryption but NOT + // support_encryption_ephemeral on the first response. A second event + // carrying support_encryption_ephemeral must OR-assign into the client's + // learned caps without downgrading the already-learned support_encryption. + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_keys = server_pool.mock_keys(); + + let client_pool = Arc::new(client_pool); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + server_info: Some(ServerInfo { + name: Some("PersistentServer".to_string()), + ..Default::default() + }), + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Persistent, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .unwrap(); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + Arc::clone(&client_pool) as Arc, + ) + .await + .unwrap(); + + let mut server_rx = server.take_message_receiver().unwrap(); + let mut client_rx = client.take_message_receiver().unwrap(); + server.start().await.unwrap(); + client.start().await.unwrap(); + let_event_loops_start().await; + + // First roundtrip — server responds with support_encryption only. + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: None, + })) + .await + .unwrap(); + + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .unwrap() + .unwrap(); + + server + .send_response( + &incoming.event_id, + JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + result: serde_json::json!({}), + }), + ) + .await + .unwrap(); + + let _ = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .unwrap(); + + let caps_after_first = client.discovered_server_capabilities(); + assert!( + caps_after_first.supports_encryption, + "first response must teach support_encryption" + ); + assert!( + !caps_after_first.supports_ephemeral_encryption, + "Persistent server must NOT advertise ephemeral on first response" + ); + + // Inject a second plaintext event signed by the server, carrying + // support_encryption_ephemeral (simulates a capability upgrade). + let client_pubkey = client_pool.mock_public_key(); + let second_response = serde_json::json!({ + "jsonrpc": "2.0", + "method": "notifications/progress" + }); + let inject_event = EventBuilder::new( + Kind::Custom(CTXVM_MESSAGES_KIND), + second_response.to_string(), + ) + .tags(vec![ + Tag::public_key(client_pubkey), + Tag::custom( + TagKind::Custom(tags::SUPPORT_ENCRYPTION_EPHEMERAL.into()), + Vec::::new(), + ), + ]) + .sign_with_keys(&server_keys) + .unwrap(); + + client_pool.publish_event(&inject_event).await.unwrap(); + tokio::time::sleep(Duration::from_millis(50)).await; + + let caps_after_second = client.discovered_server_capabilities(); + assert!( + caps_after_second.supports_encryption, + "support_encryption must survive OR-assign (not downgraded)" + ); + assert!( + caps_after_second.supports_ephemeral_encryption, + "support_encryption_ephemeral must be OR-assigned from second event" + ); +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn client_baseline_event_not_replaced_by_later_responses() { + // The first inbound event carrying discovery tags becomes the baseline. + // Later events with different tags must NOT replace it. + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_keys = server_pool.mock_keys(); + + let client_pool = Arc::new(client_pool); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + server_info: Some(ServerInfo { + name: Some("BaselineServer".to_string()), + ..Default::default() + }), + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .unwrap(); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + Arc::clone(&client_pool) as Arc, + ) + .await + .unwrap(); + + let mut server_rx = server.take_message_receiver().unwrap(); + let mut client_rx = client.take_message_receiver().unwrap(); + server.start().await.unwrap(); + client.start().await.unwrap(); + let_event_loops_start().await; + + // First roundtrip — establishes baseline. + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: None, + })) + .await + .unwrap(); + + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .unwrap() + .unwrap(); + + server + .send_response( + &incoming.event_id, + JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + result: serde_json::json!({}), + }), + ) + .await + .unwrap(); + + let _ = tokio::time::timeout(Duration::from_millis(500), client_rx.recv()) + .await + .unwrap(); + + let baseline = client.get_server_initialize_event(); + assert!( + baseline.is_some(), + "baseline must be set after first response" + ); + let baseline_id = baseline.unwrap().id; + + // Inject a second event with different discovery tags. + let client_pubkey = client_pool.mock_public_key(); + let notification = serde_json::json!({ + "jsonrpc": "2.0", + "method": "notifications/progress" + }); + let inject_event = + EventBuilder::new(Kind::Custom(CTXVM_MESSAGES_KIND), notification.to_string()) + .tags(vec![ + Tag::public_key(client_pubkey), + Tag::custom( + TagKind::Custom(tags::SUPPORT_ENCRYPTION.into()), + Vec::::new(), + ), + ]) + .sign_with_keys(&server_keys) + .unwrap(); + + client_pool.publish_event(&inject_event).await.unwrap(); + tokio::time::sleep(Duration::from_millis(50)).await; + + let baseline_after = client.get_server_initialize_event(); + assert_eq!( + baseline_after.unwrap().id, + baseline_id, + "baseline event must NOT be replaced by later events" + ); +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn client_optional_encryption_emits_discovery_tags() { + // Client with Optional encryption must include discovery tags in the + // inner signed event. We decrypt the published gift wrap to verify. + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_keys = server_pool.mock_keys(); + + let client_pool = Arc::new(client_pool); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + ..Default::default() + }, + Arc::clone(&client_pool) as Arc, + ) + .await + .unwrap(); + + client.start().await.unwrap(); + let_event_loops_start().await; + + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: None, + })) + .await + .unwrap(); + + let events = client_pool.stored_events().await; + let gift_wrap = events + .iter() + .find(|e| { + e.kind == Kind::Custom(GIFT_WRAP_KIND) + || e.kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND) + }) + .expect("Optional encryption must produce a gift-wrapped event"); + + // Decrypt using the server's keys (the recipient). + let signer: Arc = Arc::new(server_keys); + let decrypted_json = + contextvm_sdk::encryption::decrypt_gift_wrap_single_layer(&signer, gift_wrap) + .await + .expect("gift wrap must be decryptable with server keys"); + + let inner: Event = + serde_json::from_str(&decrypted_json).expect("decrypted content must be a valid Event"); + + assert!( + has_tag_name(&inner, tags::SUPPORT_ENCRYPTION), + "inner event must carry support_encryption tag" + ); + assert!( + has_tag_name(&inner, tags::SUPPORT_ENCRYPTION_EPHEMERAL), + "inner event must carry support_encryption_ephemeral tag (Optional gift-wrap mode)" + ); +} From ae9c85189c86884984e4fe4252ed5af32a663dd4 Mon Sep 17 00:00:00 2001 From: Harsh Date: Tue, 5 May 2026 16:27:05 +0530 Subject: [PATCH 059/116] fix: add TTL sweep to client and server correlation stores to prevent pending-request leak --- src/gateway/mod.rs | 1 + src/transport/client/correlation_store.rs | 59 +++ src/transport/client/mod.rs | 428 ++++++++++++---------- src/transport/server/correlation_store.rs | 63 ++++ src/transport/server/mod.rs | 23 ++ 5 files changed, 389 insertions(+), 185 deletions(-) diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index e9d00f2..f486b1c 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -128,6 +128,7 @@ mod tests { excluded_capabilities: vec![], cleanup_interval: Duration::from_secs(120), session_timeout: Duration::from_secs(600), + request_timeout: Duration::from_secs(60), log_file_path: None, }; diff --git a/src/transport/client/correlation_store.rs b/src/transport/client/correlation_store.rs index 858b37a..537c1ae 100644 --- a/src/transport/client/correlation_store.rs +++ b/src/transport/client/correlation_store.rs @@ -2,6 +2,7 @@ use std::num::NonZeroUsize; use std::sync::Arc; +use std::time::{Duration, Instant}; use lru::LruCache; use tokio::sync::RwLock; @@ -15,6 +16,8 @@ pub struct PendingRequest { pub original_id: serde_json::Value, /// Whether this request is an `initialize` handshake. pub is_initialize: bool, + /// When the request was registered. + pub registered_at: Instant, } /// Tracks pending request event IDs and their original request IDs on the client side. @@ -59,6 +62,7 @@ impl ClientCorrelationStore { PendingRequest { original_id, is_initialize, + registered_at: Instant::now(), }, ); } @@ -95,6 +99,25 @@ impl ClientCorrelationStore { self.pending_requests.read().await.len() } + /// Remove all entries older than `timeout`. Returns the number of entries removed. + pub async fn sweep_expired(&self, timeout: Duration) -> usize { + let now = Instant::now(); + let mut cache = self.pending_requests.write().await; + let mut expired_keys = Vec::new(); + + for (key, entry) in cache.iter() { + if now.duration_since(entry.registered_at) >= timeout { + expired_keys.push(key.clone()); + } + } + + let count = expired_keys.len(); + for key in expired_keys { + cache.pop(&key); + } + count + } + pub async fn clear(&self) { self.pending_requests.write().await.clear(); } @@ -150,4 +173,40 @@ mod tests { assert!(!store.contains("e0").await); assert!(store.contains(&format!("e{DEFAULT_LRU_SIZE}")).await); } + + #[tokio::test] + async fn sweep_expired_removes_only_stale_entries() { + let store = ClientCorrelationStore::new(); + + // Insert an entry that will be "old" by the time we sweep. + store + .register("old".into(), serde_json::json!(1), false) + .await; + + // Sleep so "old" entry ages past the threshold. + tokio::time::sleep(Duration::from_millis(20)).await; + + // Insert a fresh entry. + store + .register("fresh".into(), serde_json::json!(2), false) + .await; + + // Sweep with a 10ms timeout — "old" should be removed, "fresh" should remain. + let swept = store.sweep_expired(Duration::from_millis(10)).await; + assert_eq!(swept, 1); + assert!(!store.contains("old").await); + assert!(store.contains("fresh").await); + } + + #[tokio::test] + async fn sweep_expired_returns_zero_when_nothing_expired() { + let store = ClientCorrelationStore::new(); + store + .register("e1".into(), serde_json::Value::Null, false) + .await; + + let swept = store.sweep_expired(Duration::from_secs(60)).await; + assert_eq!(swept, 0); + assert!(store.contains("e1").await); + } } diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index 65aa47b..0aaafc6 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -243,6 +243,7 @@ impl NostrClientTransport { let init_event = self.server_initialize_event.clone(); let server_supports_ephemeral = self.server_supports_ephemeral.clone(); let seen_gift_wrap_ids = self.seen_gift_wrap_ids.clone(); + let timeout = self.config.timeout; tokio::spawn(async move { Self::event_loop( @@ -256,6 +257,7 @@ impl NostrClientTransport { init_event, server_supports_ephemeral, seen_gift_wrap_ids, + timeout, ) .await; }); @@ -393,200 +395,47 @@ impl NostrClientTransport { init_event: Arc>>, server_supports_ephemeral: Arc, seen_gift_wrap_ids: Arc>>, + timeout: Duration, ) { let mut notifications = relay_pool.notifications(); - - while let Ok(notification) = notifications.recv().await { - if let RelayPoolNotification::Event { event, .. } = notification { - let is_gift_wrap = is_gift_wrap_kind(&event.kind); - let outer_kind = event.kind.as_u16(); - - // Enforce encryption mode before decrypt/parse. - if violates_encryption_policy(&event.kind, &encryption_mode) { - if is_gift_wrap { - tracing::warn!( - target: LOG_TARGET, - event_id = %event.id.to_hex(), - event_kind = outer_kind, - configured_mode = ?gift_wrap_mode, - "Skipping encrypted response because client encryption is disabled" - ); - } else { - tracing::warn!( - target: LOG_TARGET, - event_id = %event.id.to_hex(), - "Skipping plaintext response because client encryption is required" - ); - } - continue; - } - - // Enforce CEP-19 gift-wrap-mode policy. - if is_gift_wrap && !gift_wrap_mode.allows_kind(outer_kind) { - tracing::warn!( - target: LOG_TARGET, - event_id = %event.id.to_hex(), - event_kind = outer_kind, - configured_mode = ?gift_wrap_mode, - "Skipping gift wrap due to CEP-19 policy" - ); - continue; - } - - // Handle gift-wrapped events - let (actual_event_content, actual_pubkey, e_tag, verified_tags, source_event) = - if is_gift_wrap { - { - let guard = match seen_gift_wrap_ids.lock() { - Ok(g) => g, - Err(poisoned) => poisoned.into_inner(), - }; - if guard.contains(&event.id) { - tracing::debug!( - target: LOG_TARGET, - event_id = %event.id.to_hex(), - "Skipping duplicate gift-wrap (outer id)" - ); - continue; - } - } - // Single-layer NIP-44 decrypt (matches JS/TS SDK) - let signer = match relay_pool.signer().await { - Ok(s) => s, - Err(error) => { - tracing::error!( - target: LOG_TARGET, - error = %error, - "Failed to get signer" - ); - continue; - } - }; - match encryption::decrypt_gift_wrap_single_layer(&signer, &event).await { - Ok(decrypted_json) => { - match serde_json::from_str::(&decrypted_json) { - Ok(inner) => { - if let Err(e) = inner.verify() { - tracing::warn!( - "Inner event signature verification failed: {e}" - ); - continue; - } - { - let mut guard = match seen_gift_wrap_ids.lock() { - Ok(g) => g, - Err(poisoned) => poisoned.into_inner(), - }; - guard.put(event.id, ()); - } - let e_tag = serializers::get_tag_value(&inner.tags, "e"); - let inner_clone = inner.clone(); - ( - inner.content, - inner.pubkey, - e_tag, - inner.tags, - inner_clone, - ) - } - Err(error) => { - tracing::error!( - target: LOG_TARGET, - error = %error, - "Failed to parse inner event" - ); - continue; - } - } - } - Err(error) => { - tracing::error!( - target: LOG_TARGET, - error = %error, - "Failed to decrypt gift wrap" - ); - continue; - } - } - } else { - let e_tag = serializers::get_tag_value(&event.tags, "e"); - let event_clone = (*event).clone(); - ( - event.content.clone(), - event.pubkey, - e_tag, - event.tags.clone(), - event_clone, - ) + // Sweep interval: half the timeout, clamped to [1s, 30s]. + let sweep_interval = (timeout / 2).clamp(Duration::from_secs(1), Duration::from_secs(30)); + let mut sweep_timer = + tokio::time::interval_at(tokio::time::Instant::now() + sweep_interval, sweep_interval); + + loop { + tokio::select! { + result = notifications.recv() => { + let notification = match result { + Ok(n) => n, + Err(_) => break, }; - - // Verify it's from our server - if actual_pubkey != server_pubkey { - tracing::debug!( - target: LOG_TARGET, - event_pubkey = %actual_pubkey.to_hex(), - expected_pubkey = %server_pubkey.to_hex(), - "Skipping event from unexpected pubkey" - ); - continue; + Self::handle_notification( + ¬ification, + &pending, + server_pubkey, + &tx, + encryption_mode, + gift_wrap_mode, + &discovered_caps, + &init_event, + &server_supports_ephemeral, + &seen_gift_wrap_ids, + &relay_pool, + ) + .await; } - - // CEP-35: learn server capabilities from discovery tags - Self::learn_server_discovery(&discovered_caps, &init_event, &source_event); - - // CEP-19: learn ephemeral support from server - if Self::should_learn_ephemeral_support( - actual_pubkey, - server_pubkey, - if is_gift_wrap { Some(outer_kind) } else { None }, - &verified_tags, - ) { - server_supports_ephemeral.store(true, Ordering::Relaxed); - } - - // Correlate response - if let Some(ref correlated_id) = e_tag { - let is_pending = pending.contains(correlated_id.as_str()).await; - if !is_pending { + _ = sweep_timer.tick() => { + let swept = pending.sweep_expired(timeout).await; + if swept > 0 { tracing::warn!( target: LOG_TARGET, - correlated_event_id = %correlated_id, - "Response for unknown request" + swept, + timeout_ms = timeout.as_millis() as u64, + "Swept stale pending requests (rmcp handles timeout errors)" ); - continue; } } - - // Parse MCP message - if let Some(mcp_msg) = validation::validate_and_parse(&actual_event_content) { - // Drop uncorrelated responses and server-to-client requests (matches TS SDK). - match &mcp_msg { - JsonRpcMessage::Response(_) | JsonRpcMessage::ErrorResponse(_) - if e_tag.is_none() => - { - tracing::warn!( - target: LOG_TARGET, - "Dropping response/error without correlation `e` tag" - ); - continue; - } - JsonRpcMessage::Request(_) => { - tracing::warn!( - target: LOG_TARGET, - method = ?mcp_msg.method(), - "Dropping server-to-client request (invalid in MCP)" - ); - continue; - } - _ => {} - } - - // Clean up pending request - if let Some(ref correlated_id) = e_tag { - pending.remove(correlated_id.as_str()).await; - } - let _ = tx.send(mcp_msg); - } } } } @@ -673,6 +522,206 @@ impl NostrClientTransport { *guard } + #[allow(clippy::too_many_arguments)] + async fn handle_notification( + notification: &RelayPoolNotification, + pending: &ClientCorrelationStore, + server_pubkey: PublicKey, + tx: &tokio::sync::mpsc::UnboundedSender, + encryption_mode: EncryptionMode, + gift_wrap_mode: GiftWrapMode, + discovered_caps: &Arc>, + init_event: &Arc>>, + server_supports_ephemeral: &Arc, + seen_gift_wrap_ids: &Arc>>, + relay_pool: &Arc, + ) { + let event = match notification { + RelayPoolNotification::Event { event, .. } => event, + _ => return, + }; + + let is_gift_wrap = is_gift_wrap_kind(&event.kind); + let outer_kind = event.kind.as_u16(); + + // Enforce encryption mode before decrypt/parse. + if violates_encryption_policy(&event.kind, &encryption_mode) { + if is_gift_wrap { + tracing::warn!( + target: LOG_TARGET, + event_id = %event.id.to_hex(), + event_kind = outer_kind, + configured_mode = ?gift_wrap_mode, + "Skipping encrypted response because client encryption is disabled" + ); + } else { + tracing::warn!( + target: LOG_TARGET, + event_id = %event.id.to_hex(), + "Skipping plaintext response because client encryption is required" + ); + } + return; + } + + // Enforce CEP-19 gift-wrap-mode policy. + if is_gift_wrap && !gift_wrap_mode.allows_kind(outer_kind) { + tracing::warn!( + target: LOG_TARGET, + event_id = %event.id.to_hex(), + event_kind = outer_kind, + configured_mode = ?gift_wrap_mode, + "Skipping gift wrap due to CEP-19 policy" + ); + return; + } + + // Handle gift-wrapped events + let (actual_event_content, actual_pubkey, e_tag, verified_tags, source_event) = + if is_gift_wrap { + { + let guard = match seen_gift_wrap_ids.lock() { + Ok(g) => g, + Err(poisoned) => poisoned.into_inner(), + }; + if guard.contains(&event.id) { + tracing::debug!( + target: LOG_TARGET, + event_id = %event.id.to_hex(), + "Skipping duplicate gift-wrap (outer id)" + ); + return; + } + } + // Single-layer NIP-44 decrypt (matches JS/TS SDK) + let signer = match relay_pool.signer().await { + Ok(s) => s, + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to get signer" + ); + return; + } + }; + match encryption::decrypt_gift_wrap_single_layer(&signer, event).await { + Ok(decrypted_json) => match serde_json::from_str::(&decrypted_json) { + Ok(inner) => { + if let Err(e) = inner.verify() { + tracing::warn!("Inner event signature verification failed: {e}"); + return; + } + { + let mut guard = match seen_gift_wrap_ids.lock() { + Ok(g) => g, + Err(poisoned) => poisoned.into_inner(), + }; + guard.put(event.id, ()); + } + let e_tag = serializers::get_tag_value(&inner.tags, "e"); + let inner_clone = inner.clone(); + (inner.content, inner.pubkey, e_tag, inner.tags, inner_clone) + } + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to parse inner event" + ); + return; + } + }, + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to decrypt gift wrap" + ); + return; + } + } + } else { + let e_tag = serializers::get_tag_value(&event.tags, "e"); + let event_clone: Event = (**event).clone(); + ( + event.content.clone(), + event.pubkey, + e_tag, + event.tags.clone(), + event_clone, + ) + }; + + // Verify it's from our server + if actual_pubkey != server_pubkey { + tracing::debug!( + target: LOG_TARGET, + event_pubkey = %actual_pubkey.to_hex(), + expected_pubkey = %server_pubkey.to_hex(), + "Skipping event from unexpected pubkey" + ); + return; + } + + // CEP-35: learn server capabilities from discovery tags + Self::learn_server_discovery(discovered_caps, init_event, &source_event); + + // CEP-19: learn ephemeral support from server + if Self::should_learn_ephemeral_support( + actual_pubkey, + server_pubkey, + if is_gift_wrap { Some(outer_kind) } else { None }, + &verified_tags, + ) { + server_supports_ephemeral.store(true, Ordering::Relaxed); + } + + // Correlate response + if let Some(ref correlated_id) = e_tag { + let is_pending = pending.contains(correlated_id.as_str()).await; + if !is_pending { + tracing::warn!( + target: LOG_TARGET, + correlated_event_id = %correlated_id, + "Response for unknown request" + ); + return; + } + } + + // Parse MCP message + if let Some(mcp_msg) = validation::validate_and_parse(&actual_event_content) { + // Drop uncorrelated responses and server-to-client requests (matches TS SDK). + match &mcp_msg { + JsonRpcMessage::Response(_) | JsonRpcMessage::ErrorResponse(_) + if e_tag.is_none() => + { + tracing::warn!( + target: LOG_TARGET, + "Dropping response/error without correlation `e` tag" + ); + return; + } + JsonRpcMessage::Request(_) => { + tracing::warn!( + target: LOG_TARGET, + method = ?mcp_msg.method(), + "Dropping server-to-client request (invalid in MCP)" + ); + return; + } + _ => {} + } + + // Clean up pending request + if let Some(ref correlated_id) = e_tag { + pending.remove(correlated_id.as_str()).await; + } + let _ = tx.send(mcp_msg); + } + } + fn choose_outbound_gift_wrap_kind(&self) -> u16 { match self.config.gift_wrap_mode { GiftWrapMode::Persistent => GIFT_WRAP_KIND, @@ -752,6 +801,15 @@ mod tests { assert!(config.is_stateless); } + #[test] + fn test_custom_timeout_config() { + let config = NostrClientTransportConfig { + timeout: Duration::from_secs(60), + ..Default::default() + }; + assert_eq!(config.timeout, Duration::from_secs(60)); + } + #[test] fn test_has_support_ephemeral_tag_detects_capability() { let tags = Tags::from_list(vec![Tag::custom( diff --git a/src/transport/server/correlation_store.rs b/src/transport/server/correlation_store.rs index cad616e..80353a8 100644 --- a/src/transport/server/correlation_store.rs +++ b/src/transport/server/correlation_store.rs @@ -3,6 +3,7 @@ use std::collections::{HashMap, HashSet}; use std::num::NonZeroUsize; use std::sync::Arc; +use std::time::{Duration, Instant}; use lru::LruCache; use tokio::sync::RwLock; @@ -21,6 +22,8 @@ pub struct RouteEntry { /// The outer gift-wrap event kind that carried this request (e.g. 1059 or 21059). /// Populated from the inbound event in a later PR; `None` until then. pub wrap_kind: Option, + /// When the route was registered. + pub registered_at: Instant, } /// Internal state behind the lock. @@ -127,6 +130,7 @@ impl ServerEventRouteStore { original_request_id, progress_token, wrap_kind: None, + registered_at: Instant::now(), }, ); @@ -222,6 +226,26 @@ impl ServerEventRouteStore { self.inner.read().await.progress_token_to_event.len() } + /// Remove all route entries older than `timeout`. + /// (Routes for expired sessions are already cleaned by `cleanup_sessions`.) + /// Returns the event IDs of the removed entries. + pub async fn sweep_stale_routes(&self, timeout: Duration) -> Vec { + let now = Instant::now(); + let mut inner = self.inner.write().await; + let mut expired_keys = Vec::new(); + + for (key, entry) in inner.routes.iter() { + if now.duration_since(entry.registered_at) >= timeout { + expired_keys.push(key.clone()); + } + } + + for key in &expired_keys { + inner.remove_route(key); + } + expired_keys + } + pub async fn clear(&self) { let mut inner = self.inner.write().await; inner.routes.clear(); @@ -321,4 +345,43 @@ mod tests { assert!(!store.has_event_route("e0").await); assert!(store.has_event_route(&format!("e{DEFAULT_LRU_SIZE}")).await); } + + #[tokio::test] + async fn sweep_stale_routes_removes_only_expired() { + let store = ServerEventRouteStore::new(); + + // Insert a route that will age past the threshold. + store + .register("old".into(), "pk1".into(), json!(1), Some("tok1".into())) + .await; + + tokio::time::sleep(Duration::from_millis(20)).await; + + // Insert a fresh route. + store + .register("fresh".into(), "pk2".into(), json!(2), None) + .await; + + // Sweep with 10ms timeout — "old" should be removed, "fresh" should remain. + let swept = store.sweep_stale_routes(Duration::from_millis(10)).await; + assert_eq!(swept.len(), 1); + assert_eq!(swept[0], "old"); + assert!(!store.has_event_route("old").await); + assert!(store.has_event_route("fresh").await); + // Secondary indexes should also be cleaned. + assert!(!store.has_progress_token("tok1").await); + assert!(!store.has_active_routes_for_client("pk1").await); + } + + #[tokio::test] + async fn sweep_stale_routes_returns_zero_when_nothing_expired() { + let store = ServerEventRouteStore::new(); + store + .register("e1".into(), "pk1".into(), json!(1), None) + .await; + + let swept = store.sweep_stale_routes(Duration::from_secs(60)).await; + assert!(swept.is_empty()); + assert!(store.has_event_route("e1").await); + } } diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 022aee1..9dd3fc3 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -52,6 +52,8 @@ pub struct NostrServerTransportConfig { pub cleanup_interval: Duration, /// Session timeout (default: 300s). pub session_timeout: Duration, + /// Request route timeout (default: 60s). Stale routes older than this are swept. + pub request_timeout: Duration, /// Optional log file path. Logs always go to stdout and are also appended here when set. pub log_file_path: Option, } @@ -68,6 +70,7 @@ impl Default for NostrServerTransportConfig { excluded_capabilities: Vec::new(), cleanup_interval: Duration::from_secs(60), session_timeout: Duration::from_secs(300), + request_timeout: Duration::from_secs(60), log_file_path: None, } } @@ -277,6 +280,7 @@ impl NostrServerTransport { let request_wrap_kinds_cleanup = self.request_wrap_kinds.clone(); let cleanup_interval = self.config.cleanup_interval; let session_timeout = self.config.session_timeout; + let request_timeout = self.config.request_timeout; tokio::spawn(async move { let mut interval = tokio::time::interval(cleanup_interval); @@ -296,6 +300,24 @@ impl NostrServerTransport { "Cleaned up inactive sessions" ); } + + // Sweep stale route entries in active sessions (rmcp handles timeout errors). + let swept_event_ids = event_routes_cleanup + .sweep_stale_routes(request_timeout) + .await; + if !swept_event_ids.is_empty() { + let mut kinds_w = request_wrap_kinds_cleanup.write().await; + for event_id in &swept_event_ids { + kinds_w.remove(event_id); + } + drop(kinds_w); + tracing::warn!( + target: LOG_TARGET, + swept = swept_event_ids.len(), + timeout_secs = request_timeout.as_secs(), + "Swept stale event routes (rmcp handles timeout errors)" + ); + } } }); @@ -1503,6 +1525,7 @@ mod tests { assert!(config.excluded_capabilities.is_empty()); assert_eq!(config.cleanup_interval, Duration::from_secs(60)); assert_eq!(config.session_timeout, Duration::from_secs(300)); + assert_eq!(config.request_timeout, Duration::from_secs(60)); assert!(config.server_info.is_none()); assert!(config.log_file_path.is_none()); } From 5d4d5b7a7aa6e8825f5edb96022191f09b7b51dd Mon Sep 17 00:00:00 2001 From: Harsh Date: Tue, 5 May 2026 03:57:08 +0530 Subject: [PATCH 060/116] fix: remove single-peer barrier in RMCP worker and add LRU-bounded SessionStore --- src/gateway/mod.rs | 1 + src/relay/mock.rs | 18 ++ src/rmcp_transport/pipeline_tests.rs | 158 +++++++++------ src/rmcp_transport/worker.rs | 130 ++++-------- src/transport/server/mod.rs | 52 +++-- src/transport/server/session_store.rs | 279 ++++++++++++++++++++++---- tests/conformance_stores.rs | 23 ++- tests/transport_integration.rs | 175 ++++++++++++++++ 8 files changed, 608 insertions(+), 228 deletions(-) diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index e9d00f2..443b649 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -126,6 +126,7 @@ mod tests { is_announced_server: true, allowed_public_keys: vec!["abc123".to_string()], excluded_capabilities: vec![], + max_sessions: 1000, cleanup_interval: Duration::from_secs(120), session_timeout: Duration::from_secs(600), log_file_path: None, diff --git a/src/relay/mock.rs b/src/relay/mock.rs index a950235..2b181d6 100644 --- a/src/relay/mock.rs +++ b/src/relay/mock.rs @@ -105,6 +105,24 @@ impl MockRelayPool { (a, b) } + /// Create `n` linked mock relay pools with different signing keys. + /// + /// All pools share the same event store and notification channel so events + /// published by any one pool are visible to all others' `notifications()` + /// receivers. Useful for multi-client integration tests. + pub fn create_linked_group(n: usize) -> Vec { + assert!(n > 0, "group must have at least one pool"); + let (tx, _rx) = tokio::sync::broadcast::channel(1024); + let inner = Arc::new(Mutex::new(MockRelayInner::new())); + (0..n) + .map(|_| Self { + inner: Arc::clone(&inner), + notification_tx: tx.clone(), + keys: Keys::generate(), + }) + .collect() + } + /// Clone of all events published so far (useful for assertions in tests). pub async fn stored_events(&self) -> Vec { self.inner.lock().await.events.clone() diff --git a/src/rmcp_transport/pipeline_tests.rs b/src/rmcp_transport/pipeline_tests.rs index a1a6859..a036799 100644 --- a/src/rmcp_transport/pipeline_tests.rs +++ b/src/rmcp_transport/pipeline_tests.rs @@ -14,16 +14,13 @@ #[cfg(all(test, feature = "rmcp"))] mod tests { - use std::collections::HashMap; - use rmcp::model::{ ClientJsonRpcMessage, ClientResult, RequestId, ServerJsonRpcMessage, ServerResult, }; use crate::core::serializers; use crate::core::types::{ - JsonRpcError, JsonRpcErrorResponse, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, - JsonRpcResponse, + JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, }; use crate::rmcp_transport::convert::{ internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, @@ -210,89 +207,120 @@ mod tests { assert_eq!(v["result"]["tools"], serde_json::json!([])); } - // ── Layer 5: ID correlation map logic (mirrors NostrServerWorker) ──────── + // ── Layer 5: event_id-based request correlation (mirrors NostrServerWorker) ── #[test] - fn layer5_worker_correlation_map_number_id() { - let mut request_id_to_event_id: HashMap = HashMap::new(); - let fake_event_id = "aaaaaa".to_string(); - - // Step 1: incoming request arrives — worker stores req_id → event_id - let req = JsonRpcMessage::Request(JsonRpcRequest { + fn layer5_worker_uses_event_id_as_request_id() { + // Simulate the worker rewriting req.id to the Nostr event_id. + let event_id = "abc123def456"; + let mut req = JsonRpcRequest { jsonrpc: "2.0".to_string(), id: serde_json::json!(42), method: "tools/list".to_string(), params: None, - }); + }; - if let JsonRpcMessage::Request(ref r) = req { - let key = serde_json::to_string(&r.id).unwrap(); - request_id_to_event_id.insert(key, fake_event_id.clone()); - } + // Worker inbound path: rewrite id to event_id + req.id = serde_json::json!(event_id); + assert_eq!(req.id, serde_json::json!("abc123def456")); - // Step 2: rmcp response comes back with id=42 - let response = JsonRpcMessage::Response(JsonRpcResponse { - jsonrpc: "2.0".to_string(), - id: serde_json::json!(42), - result: serde_json::json!({}), - }); + // Convert through rmcp bridge — ID must survive the roundtrip + let msg = JsonRpcMessage::Request(req); + let rmcp_rx = internal_to_rmcp_server_rx(&msg).unwrap(); + let v = serde_json::to_value(&rmcp_rx).unwrap(); + assert_eq!(v["id"], serde_json::json!("abc123def456")); - // Step 3: worker looks up the event_id to call send_response - if let JsonRpcMessage::Response(ref r) = response { - let key = serde_json::to_string(&r.id).unwrap(); - let found = request_id_to_event_id.remove(&key); - assert_eq!(found, Some(fake_event_id)); - } else { - panic!("expected Response"); - } + // Simulate rmcp handler echoing the event_id back in the response + let rmcp_tx = ServerJsonRpcMessage::response( + ServerResult::empty(()), + RequestId::String(std::sync::Arc::from(event_id)), + ); + let response = rmcp_server_tx_to_internal(rmcp_tx).unwrap(); - // Map should be empty after handling - assert!(request_id_to_event_id.is_empty()); + // The response ID is the event_id — worker passes it directly to send_response + match response { + JsonRpcMessage::Response(r) => { + assert_eq!(r.id.as_str(), Some(event_id)); + } + other => panic!("expected Response, got {other:?}"), + } } #[test] - fn layer5_worker_correlation_map_string_id() { - let mut request_id_to_event_id: HashMap = HashMap::new(); - let fake_event_id = "bbbbbb".to_string(); - - // String IDs serialize with surrounding quotes: "\"req-abc\"" - let req_id = serde_json::json!("req-abc"); - let key = serde_json::to_string(&req_id).unwrap(); - request_id_to_event_id.insert(key.clone(), fake_event_id.clone()); - - // The response ID serializes identically - let resp_id = serde_json::json!("req-abc"); - let resp_key = serde_json::to_string(&resp_id).unwrap(); - - // Key derived from response ID must match the one stored from request ID - assert_eq!(key, resp_key); - assert_eq!( - request_id_to_event_id.remove(&resp_key), - Some(fake_event_id) + fn layer5_worker_two_clients_no_collision() { + // Two clients both send requests with id: 1. The worker rewrites each + // to its unique Nostr event_id, so no collision occurs. + let event_id_a = "aaaa1111aaaa1111aaaa1111aaaa1111aaaa1111aaaa1111aaaa1111aaaa1111"; + let event_id_b = "bbbb2222bbbb2222bbbb2222bbbb2222bbbb2222bbbb2222bbbb2222bbbb2222"; + + let mut req_a = JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "tools/list".to_string(), + params: None, + }; + let mut req_b = JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "tools/list".to_string(), + params: None, + }; + + // Worker rewrites both to their respective event IDs + req_a.id = serde_json::json!(event_id_a); + req_b.id = serde_json::json!(event_id_b); + + // After rewrite, the IDs are distinct even though both clients sent id: 1 + assert_ne!(req_a.id, req_b.id); + assert_eq!(req_a.id.as_str(), Some(event_id_a)); + assert_eq!(req_b.id.as_str(), Some(event_id_b)); + + // Responses echo back the event_id — each routes to the correct client + let rmcp_resp_a = ServerJsonRpcMessage::response( + ServerResult::empty(()), + RequestId::String(std::sync::Arc::from(event_id_a)), + ); + let rmcp_resp_b = ServerJsonRpcMessage::response( + ServerResult::empty(()), + RequestId::String(std::sync::Arc::from(event_id_b)), ); + + let resp_a = rmcp_server_tx_to_internal(rmcp_resp_a).unwrap(); + let resp_b = rmcp_server_tx_to_internal(rmcp_resp_b).unwrap(); + + // Each response carries its own event_id — no cross-wiring + assert_eq!(resp_a.id().unwrap().as_str(), Some(event_id_a)); + assert_eq!(resp_b.id().unwrap().as_str(), Some(event_id_b)); } #[test] - fn layer5_error_response_correlation_works() { - let mut map: HashMap = HashMap::new(); - map.insert( - serde_json::to_string(&serde_json::json!(5)).unwrap(), - "evt5".to_string(), - ); - - let error_response = JsonRpcMessage::ErrorResponse(JsonRpcErrorResponse { + fn layer5_error_response_carries_event_id() { + // Error responses also carry the event_id for routing. + let event_id = "deadbeef"; + let mut req = JsonRpcRequest { jsonrpc: "2.0".to_string(), id: serde_json::json!(5), - error: JsonRpcError { - code: -32601, - message: "Method not found".to_string(), + method: "tools/call".to_string(), + params: None, + }; + req.id = serde_json::json!(event_id); + + // rmcp handler returns an error with the rewritten event_id + let rmcp_err = ServerJsonRpcMessage::error( + rmcp::model::ErrorData { + code: rmcp::model::ErrorCode::METHOD_NOT_FOUND, + message: "Method not found".into(), data: None, }, - }); + RequestId::String(std::sync::Arc::from(event_id)), + ); + let internal = rmcp_server_tx_to_internal(rmcp_err).unwrap(); - if let JsonRpcMessage::ErrorResponse(ref r) = error_response { - let key = serde_json::to_string(&r.id).unwrap(); - assert_eq!(map.remove(&key), Some("evt5".to_string())); + match internal { + JsonRpcMessage::ErrorResponse(r) => { + assert_eq!(r.id.as_str(), Some(event_id)); + } + other => panic!("expected ErrorResponse, got {other:?}"), } } diff --git a/src/rmcp_transport/worker.rs b/src/rmcp_transport/worker.rs index 79bb3dd..a42d57e 100644 --- a/src/rmcp_transport/worker.rs +++ b/src/rmcp_transport/worker.rs @@ -3,8 +3,6 @@ //! This file defines wrapper types that bind existing ContextVM Nostr //! transports to rmcp's worker abstraction. -use std::collections::HashMap; - use crate::core::error::Result; use crate::core::types::JsonRpcMessage; use crate::transport::client::{NostrClientTransport, NostrClientTransportConfig}; @@ -19,12 +17,16 @@ use super::convert::{ const LOG_TARGET: &str = "contextvm_sdk::rmcp_transport::worker"; /// rmcp server worker wrapper for ContextVM Nostr server transport. +/// +/// Multiplexes all connected clients through a single rmcp service instance. +/// Inbound requests have their JSON-RPC `id` rewritten to the Nostr `event_id` +/// before being forwarded to the rmcp handler. Since event IDs are globally +/// unique (SHA-256 hashes), this eliminates collisions when different clients +/// use the same JSON-RPC request IDs. The transport's event-route store +/// handles response routing back to the originating client; server-initiated +/// notifications are broadcast to all initialized clients. pub struct NostrServerWorker { transport: NostrServerTransport, - // rmcp service instance is single-peer. Keep one active client per worker. - active_client_pubkey: Option, - // Maps request id (serialized JSON value) -> incoming Nostr event id. - request_id_to_event_id: HashMap, } impl NostrServerWorker { @@ -34,11 +36,7 @@ impl NostrServerWorker { T: nostr_sdk::prelude::IntoNostrSigner, { let transport = NostrServerTransport::new(signer, config).await?; - Ok(Self { - transport, - active_client_pubkey: None, - request_id_to_event_id: HashMap::new(), - }) + Ok(Self { transport }) } /// Access the wrapped transport. @@ -88,46 +86,18 @@ impl Worker for NostrServerWorker { }; let crate::transport::server::IncomingRequest { - message, - client_pubkey, + mut message, event_id, .. } = incoming; - match &self.active_client_pubkey { - Some(active) if active != &client_pubkey => { - tracing::warn!( - target: LOG_TARGET, - active_client = %active, - ignored_client = %client_pubkey, - "Ignoring message from second client: rmcp server worker currently supports one active client per worker" - ); - continue; - } - None => { - tracing::info!( - target: LOG_TARGET, - client_pubkey = %client_pubkey, - "Binding rmcp server worker to first client session" - ); - self.active_client_pubkey = Some(client_pubkey.clone()); - } - _ => {} - } - - if let JsonRpcMessage::Request(req) = &message { - match serde_json::to_string(&req.id) { - Ok(request_key) => { - self.request_id_to_event_id.insert(request_key, event_id); - } - Err(e) => { - tracing::warn!( - target: LOG_TARGET, - error = %e, - "Failed to serialize request id for correlation map" - ); - } - } + // Rewrite the JSON-RPC request ID to the Nostr event_id. + // Event IDs are globally unique (SHA-256), so no collision + // across clients. The transport's event-route store maps + // event_id → (client_pubkey, original_request_id) and + // restores the original ID in `send_response`. + if let JsonRpcMessage::Request(ref mut req) = message { + req.id = serde_json::json!(event_id); } if let Some(rmcp_msg) = internal_to_rmcp_server_rx(&message) { @@ -276,76 +246,44 @@ impl Worker for NostrClientWorker { } impl NostrServerWorker { + /// Forward an outbound message from the rmcp handler to the Nostr transport. + /// + /// Response IDs carry the Nostr event_id set during ingest. The transport's + /// `send_response` uses this to look up the route (client_pubkey + + /// original_request_id) and deliver the response to the correct client. + /// Notifications and server-initiated requests are broadcast to all + /// initialized clients. async fn forward_server_internal(&mut self, message: JsonRpcMessage) -> Result<()> { match message { JsonRpcMessage::Response(resp) => { - let request_key = serde_json::to_string(&resp.id).map_err(|e| { - crate::core::error::Error::Validation(format!( - "failed to serialize rmcp response id for correlation lookup: {e}" - )) + let event_id = resp.id.as_str().map(str::to_owned).ok_or_else(|| { + crate::core::error::Error::Validation( + "rmcp server response id is not a string event_id".to_string(), + ) })?; - let event_id = - if let Some(event_id) = self.request_id_to_event_id.remove(&request_key) { - event_id - } else { - resp.id.as_str().map(str::to_owned).ok_or_else(|| { - crate::core::error::Error::Validation( - "rmcp server response id has no known correlation mapping and is not a string event id" - .to_string(), - ) - })? - }; - self.transport .send_response(&event_id, JsonRpcMessage::Response(resp)) .await } JsonRpcMessage::ErrorResponse(resp) => { - let request_key = serde_json::to_string(&resp.id).map_err(|e| { - crate::core::error::Error::Validation(format!( - "failed to serialize rmcp error response id for correlation lookup: {e}" - )) + let event_id = resp.id.as_str().map(str::to_owned).ok_or_else(|| { + crate::core::error::Error::Validation( + "rmcp server error response id is not a string event_id".to_string(), + ) })?; - let event_id = - if let Some(event_id) = self.request_id_to_event_id.remove(&request_key) { - event_id - } else { - resp.id.as_str().map(str::to_owned).ok_or_else(|| { - crate::core::error::Error::Validation( - "rmcp server error response id has no known correlation mapping and is not a string event id" - .to_string(), - ) - })? - }; - self.transport .send_response(&event_id, JsonRpcMessage::ErrorResponse(resp)) .await } JsonRpcMessage::Notification(notification) => { - let target = self.active_client_pubkey.as_deref().ok_or_else(|| { - crate::core::error::Error::Validation( - "cannot forward rmcp server notification: no active client bound" - .to_string(), - ) - })?; let message = JsonRpcMessage::Notification(notification); - self.transport - .send_notification(target, &message, None) - .await + self.transport.broadcast_notification(&message).await } JsonRpcMessage::Request(request) => { - let target = self.active_client_pubkey.as_deref().ok_or_else(|| { - crate::core::error::Error::Validation( - "cannot forward rmcp server request: no active client bound".to_string(), - ) - })?; let message = JsonRpcMessage::Request(request); - self.transport - .send_notification(target, &message, None) - .await + self.transport.broadcast_notification(&message).await } } } diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 022aee1..8d75fc5 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -48,6 +48,8 @@ pub struct NostrServerTransportConfig { pub allowed_public_keys: Vec, /// Capabilities excluded from pubkey whitelisting. pub excluded_capabilities: Vec, + /// Maximum number of concurrent client sessions (LRU-bounded, default: 1000). + pub max_sessions: usize, /// Session cleanup interval (default: 60s). pub cleanup_interval: Duration, /// Session timeout (default: 300s). @@ -66,6 +68,7 @@ impl Default for NostrServerTransportConfig { is_announced_server: false, allowed_public_keys: Vec::new(), excluded_capabilities: Vec::new(), + max_sessions: session_store::DEFAULT_MAX_SESSIONS, cleanup_interval: Duration::from_secs(60), session_timeout: Duration::from_secs(300), log_file_path: None, @@ -147,10 +150,10 @@ impl NostrServerTransport { encryption_mode: config.encryption_mode, is_connected: false, }, + sessions: SessionStore::with_capacity(config.max_sessions), config, extra_common_tags: Vec::new(), pricing_tags: Vec::new(), - sessions: SessionStore::new(), event_routes: ServerEventRouteStore::new(), request_wrap_kinds: Arc::new(RwLock::new(HashMap::new())), seen_gift_wrap_ids, @@ -184,10 +187,10 @@ impl NostrServerTransport { encryption_mode: config.encryption_mode, is_connected: false, }, + sessions: SessionStore::with_capacity(config.max_sessions), config, extra_common_tags: Vec::new(), pricing_tags: Vec::new(), - sessions: SessionStore::new(), request_wrap_kinds: Arc::new(RwLock::new(HashMap::new())), event_routes: ServerEventRouteStore::new(), seen_gift_wrap_ids, @@ -1054,10 +1057,21 @@ impl NostrServerTransport { } // Session management + let on_evicted_cb = sessions.eviction_callback(); let mut sessions_w = sessions.write().await; - let session = sessions_w - .entry(sender_pubkey.clone()) - .or_insert_with(|| ClientSession::new(is_encrypted)); + if !sessions_w.contains(&sender_pubkey) { + let evicted = + sessions_w.push(sender_pubkey.clone(), ClientSession::new(is_encrypted)); + SessionStore::handle_eviction( + &sender_pubkey, + evicted, + &mut sessions_w, + on_evicted_cb.as_ref(), + &event_routes, + ) + .await; + } + let session = sessions_w.get_mut(&sender_pubkey).unwrap(); session.update_activity(); session.is_encrypted = is_encrypted; @@ -1156,21 +1170,25 @@ impl NostrServerTransport { let mut cleaned = 0; let mut stale_event_ids = Vec::new(); - sessions_w.retain(|pubkey, session| { - if session.last_activity.elapsed() > timeout { + // LruCache has no retain(); collect expired keys then pop each one. + let expired_keys: Vec = sessions_w + .iter() + .filter(|(_, session)| session.last_activity.elapsed() > timeout) + .map(|(k, _)| k.clone()) + .collect(); + + for key in &expired_keys { + if let Some(session) = sessions_w.pop(key) { stale_event_ids.extend(session.pending_requests.keys().cloned()); stale_event_ids.extend(session.event_to_progress_token.keys().cloned()); tracing::debug!( target: LOG_TARGET, - client_pubkey = %pubkey, + client_pubkey = %key, "Session expired" ); cleaned += 1; - false - } else { - true } - }); + } drop(sessions_w); { @@ -1306,10 +1324,7 @@ mod tests { session .pending_requests .insert("evt1".to_string(), serde_json::json!(1)); - sessions - .write() - .await - .insert("pubkey1".to_string(), session); + sessions.write().await.put("pubkey1".to_string(), session); event_routes .register( "evt1".to_string(), @@ -1352,7 +1367,9 @@ mod tests { let event_routes = ServerEventRouteStore::new(); let request_wrap_kinds = Arc::new(RwLock::new(HashMap::new())); - sessions.get_or_create_session("active", false).await; + sessions + .get_or_create_session("active", false, &event_routes) + .await; let cleaned = NostrServerTransport::cleanup_sessions( &sessions, @@ -1501,6 +1518,7 @@ mod tests { assert_eq!(config.gift_wrap_mode, GiftWrapMode::Optional); assert!(config.allowed_public_keys.is_empty()); assert!(config.excluded_capabilities.is_empty()); + assert_eq!(config.max_sessions, 1000); assert_eq!(config.cleanup_interval, Duration::from_secs(60)); assert_eq!(config.session_timeout, Duration::from_secs(300)); assert!(config.server_info.is_none()); diff --git a/src/transport/server/session_store.rs b/src/transport/server/session_store.rs index 6188482..1415a90 100644 --- a/src/transport/server/session_store.rs +++ b/src/transport/server/session_store.rs @@ -1,16 +1,40 @@ //! Server-side session store for managing client sessions. - -use std::collections::HashMap; +//! +//! Uses an LRU cache bounded by `max_sessions` (default 1000, matching the TS SDK +//! server session store). When a new session would exceed capacity the +//! least-recently-used session is evicted. If the evicted session still has +//! active routes in the correlation store it is recreated with clean state +//! (eviction safety, matching TS SDK's `hasActiveRoutesForClient` check), and +//! the optional eviction callback fires so external code can clean up resources. + +use std::num::NonZeroUsize; use std::sync::Arc; +use lru::LruCache; use tokio::sync::RwLock; use crate::core::types::ClientSession; +use crate::transport::server::ServerEventRouteStore; + +const LOG_TARGET: &str = "contextvm_sdk::transport::server::session_store"; + +/// Default maximum number of concurrent client sessions. +/// +/// Matches the TS SDK's `SessionStore` default (`maxSessions ?? 1000`), not +/// the broader `DEFAULT_LRU_SIZE` constant (5000) used elsewhere in the TS SDK. +pub const DEFAULT_MAX_SESSIONS: usize = 1000; + +/// Callback invoked when a session is evicted from the LRU cache. +/// Receives the evicted client's public key (hex). +pub type EvictionCallback = Arc; /// Manages client sessions keyed by public key (hex). +/// +/// Backed by an LRU cache so memory usage is bounded. #[derive(Clone)] pub struct SessionStore { - sessions: Arc>>, + sessions: Arc>>, + on_evicted: Option, } impl Default for SessionStore { @@ -20,20 +44,58 @@ impl Default for SessionStore { } impl SessionStore { + /// Create a store with the default capacity ([`DEFAULT_MAX_SESSIONS`]). pub fn new() -> Self { + Self::with_capacity(DEFAULT_MAX_SESSIONS) + } + + /// Create a store with a specific maximum number of sessions. + pub fn with_capacity(max_sessions: usize) -> Self { Self { - sessions: Arc::new(RwLock::new(HashMap::new())), + sessions: Arc::new(RwLock::new(LruCache::new( + NonZeroUsize::new(max_sessions).expect("max_sessions must be > 0"), + ))), + on_evicted: None, } } + /// Register a callback that fires when a session is evicted from the LRU. + pub fn set_eviction_callback(&mut self, cb: EvictionCallback) { + self.on_evicted = Some(cb); + } + + /// Clone the eviction callback (cheap Arc clone) for use outside the lock. + pub fn eviction_callback(&self) -> Option { + self.on_evicted.clone() + } + /// Get an existing session or create a new one. Returns `true` if a new session was created. - pub async fn get_or_create_session(&self, client_pubkey: &str, is_encrypted: bool) -> bool { + /// + /// `event_routes` is consulted during eviction safety: if the evicted client + /// still has active routes, the session is recreated with clean state + /// (matching TS SDK's `hasActiveRoutesForClient` check). + pub async fn get_or_create_session( + &self, + client_pubkey: &str, + is_encrypted: bool, + event_routes: &ServerEventRouteStore, + ) -> bool { + let on_evicted = self.on_evicted.clone(); let mut sessions = self.sessions.write().await; if let Some(session) = sessions.get_mut(client_pubkey) { session.is_encrypted = is_encrypted; false } else { - sessions.insert(client_pubkey.to_string(), ClientSession::new(is_encrypted)); + let new_session = ClientSession::new(is_encrypted); + let evicted = sessions.push(client_pubkey.to_string(), new_session); + Self::handle_eviction( + client_pubkey, + evicted, + &mut sessions, + on_evicted.as_ref(), + event_routes, + ) + .await; true } } @@ -42,7 +104,7 @@ impl SessionStore { /// Returns `None` if the session does not exist. pub async fn get_session(&self, client_pubkey: &str) -> Option { let sessions = self.sessions.read().await; - sessions.get(client_pubkey).map(|s| SessionSnapshot { + sessions.peek(client_pubkey).map(|s| SessionSnapshot { is_initialized: s.is_initialized, is_encrypted: s.is_encrypted, has_sent_common_tags: s.has_sent_common_tags, @@ -74,7 +136,7 @@ impl SessionStore { /// Remove a session. Returns `true` if it existed. pub async fn remove_session(&self, client_pubkey: &str) -> bool { - self.sessions.write().await.remove(client_pubkey).is_some() + self.sessions.write().await.pop(client_pubkey).is_some() } /// Remove all sessions. @@ -106,19 +168,59 @@ impl SessionStore { .collect() } - /// Acquire write access to the underlying map (transport internals only). + /// Acquire write access to the underlying LRU cache (transport internals only). pub(crate) async fn write( &self, - ) -> tokio::sync::RwLockWriteGuard<'_, HashMap> { + ) -> tokio::sync::RwLockWriteGuard<'_, LruCache> { self.sessions.write().await } - /// Acquire read access to the underlying map (transport internals only). + /// Acquire read access to the underlying LRU cache (transport internals only). pub(crate) async fn read( &self, - ) -> tokio::sync::RwLockReadGuard<'_, HashMap> { + ) -> tokio::sync::RwLockReadGuard<'_, LruCache> { self.sessions.read().await } + + /// Handle a potential LRU eviction after inserting a session. + /// + /// If the evicted client still has active routes in the correlation store, + /// a clean session is re-inserted (eviction safety, matching TS SDK's + /// `hasActiveRoutesForClient` check). The eviction callback fires only + /// for genuine, non-vetoed evictions. + pub(crate) async fn handle_eviction( + inserted_key: &str, + evicted: Option<(String, ClientSession)>, + sessions: &mut LruCache, + on_evicted: Option<&EvictionCallback>, + event_routes: &ServerEventRouteStore, + ) { + if let Some((evicted_key, evicted_session)) = evicted { + // `push` also returns the old value when the *same* key is updated; + // only act when a *different* key was evicted due to capacity. + if evicted_key != inserted_key { + if event_routes + .has_active_routes_for_client(&evicted_key) + .await + { + tracing::warn!( + target: LOG_TARGET, + client_pubkey = %evicted_key, + "LRU eviction of session with active routes; recreating with clean state" + ); + // Re-insert with clean state so the client isn't orphaned. + // Skip the external callback — the session still exists + // (matches TS SDK: vetoed evictions don't fire the callback). + let _ = sessions.push( + evicted_key.clone(), + ClientSession::new(evicted_session.is_encrypted), + ); + } else if let Some(cb) = on_evicted { + cb(evicted_key); + } + } + } + } } /// A lightweight snapshot of session state (avoids exposing the full `ClientSession` @@ -134,12 +236,18 @@ pub struct SessionSnapshot { #[cfg(test)] mod tests { use super::*; + use serde_json::json; + + fn routes() -> ServerEventRouteStore { + ServerEventRouteStore::new() + } #[tokio::test] async fn create_and_retrieve_session() { let store = SessionStore::new(); + let r = routes(); - let created = store.get_or_create_session("client-1", true).await; + let created = store.get_or_create_session("client-1", true, &r).await; assert!(created); let snap = store.get_session("client-1").await.unwrap(); @@ -150,14 +258,14 @@ mod tests { #[tokio::test] async fn get_or_create_returns_existing() { let store = SessionStore::new(); + let r = routes(); - let created = store.get_or_create_session("client-1", false).await; + let created = store.get_or_create_session("client-1", false, &r).await; assert!(created); - let created2 = store.get_or_create_session("client-1", true).await; + let created2 = store.get_or_create_session("client-1", true, &r).await; assert!(!created2); - // is_encrypted should have been updated. let snap = store.get_session("client-1").await.unwrap(); assert!(snap.is_encrypted); } @@ -165,7 +273,8 @@ mod tests { #[tokio::test] async fn mark_initialized() { let store = SessionStore::new(); - store.get_or_create_session("client-1", false).await; + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; assert!(store.mark_initialized("client-1").await); let snap = store.get_session("client-1").await.unwrap(); @@ -181,7 +290,8 @@ mod tests { #[tokio::test] async fn remove_session() { let store = SessionStore::new(); - store.get_or_create_session("client-1", false).await; + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; assert!(store.remove_session("client-1").await); assert!(store.get_session("client-1").await.is_none()); } @@ -195,8 +305,9 @@ mod tests { #[tokio::test] async fn clear_all_sessions() { let store = SessionStore::new(); - store.get_or_create_session("client-1", false).await; - store.get_or_create_session("client-2", true).await; + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; + store.get_or_create_session("client-2", true, &r).await; store.clear().await; @@ -208,8 +319,9 @@ mod tests { #[tokio::test] async fn get_all_sessions() { let store = SessionStore::new(); - store.get_or_create_session("client-1", false).await; - store.get_or_create_session("client-2", true).await; + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; + store.get_or_create_session("client-2", true, &r).await; let all = store.get_all_sessions().await; assert_eq!(all.len(), 2); @@ -224,10 +336,11 @@ mod tests { #[tokio::test] async fn new_session_capability_fields_default_false() { let store = SessionStore::new(); - store.get_or_create_session("client-1", false).await; + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; let sessions = store.read().await; - let session = sessions.get("client-1").unwrap(); + let session = sessions.peek("client-1").unwrap(); assert!(!session.has_sent_common_tags); assert!(!session.supports_encryption); assert!(!session.supports_ephemeral_encryption); @@ -237,7 +350,8 @@ mod tests { #[tokio::test] async fn has_sent_common_tags_flag() { let store = SessionStore::new(); - store.get_or_create_session("client-1", false).await; + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; let mut sessions = store.write().await; let session = sessions.get_mut("client-1").unwrap(); @@ -249,9 +363,9 @@ mod tests { #[tokio::test] async fn capability_or_assign_persists() { let store = SessionStore::new(); - store.get_or_create_session("client-1", false).await; + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; - // First update: learn encryption support { let mut sessions = store.write().await; let session = sessions.get_mut("client-1").unwrap(); @@ -259,16 +373,15 @@ mod tests { session.supports_ephemeral_encryption |= false; } - // Second update: learn ephemeral support; encryption stays true { let mut sessions = store.write().await; let session = sessions.get_mut("client-1").unwrap(); - session.supports_encryption |= false; // should stay true + session.supports_encryption |= false; session.supports_ephemeral_encryption |= true; } let sessions = store.read().await; - let session = sessions.get("client-1").unwrap(); + let session = sessions.peek("client-1").unwrap(); assert!(session.supports_encryption, "OR-assign must not downgrade"); assert!(session.supports_ephemeral_encryption); assert!(!session.supports_oversized_transfer); @@ -277,8 +390,9 @@ mod tests { #[tokio::test] async fn capability_fields_independent_per_client() { let store = SessionStore::new(); - store.get_or_create_session("client-a", false).await; - store.get_or_create_session("client-b", false).await; + let r = routes(); + store.get_or_create_session("client-a", false, &r).await; + store.get_or_create_session("client-b", false, &r).await; { let mut sessions = store.write().await; @@ -288,8 +402,8 @@ mod tests { } let sessions = store.read().await; - let sa = sessions.get("client-a").unwrap(); - let sb = sessions.get("client-b").unwrap(); + let sa = sessions.peek("client-a").unwrap(); + let sb = sessions.peek("client-b").unwrap(); assert!(sa.supports_encryption); assert!(sa.has_sent_common_tags); assert!(!sb.supports_encryption); @@ -299,9 +413,9 @@ mod tests { #[tokio::test] async fn get_or_create_preserves_capability_fields() { let store = SessionStore::new(); - store.get_or_create_session("client-1", false).await; + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; - // Set capability fields { let mut sessions = store.write().await; let session = sessions.get_mut("client-1").unwrap(); @@ -309,13 +423,11 @@ mod tests { session.has_sent_common_tags = true; } - // Re-enter via get_or_create (existing session) - let created = store.get_or_create_session("client-1", true).await; + let created = store.get_or_create_session("client-1", true, &r).await; assert!(!created); - // Capability fields must survive let sessions = store.read().await; - let session = sessions.get("client-1").unwrap(); + let session = sessions.peek("client-1").unwrap(); assert!(session.supports_encryption); assert!(session.has_sent_common_tags); } @@ -323,7 +435,8 @@ mod tests { #[tokio::test] async fn clear_resets_capability_fields() { let store = SessionStore::new(); - store.get_or_create_session("client-1", false).await; + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; { let mut sessions = store.write().await; let s = sessions.get_mut("client-1").unwrap(); @@ -331,11 +444,91 @@ mod tests { } store.clear().await; - store.get_or_create_session("client-1", false).await; + store.get_or_create_session("client-1", false, &r).await; let sessions = store.read().await; - let session = sessions.get("client-1").unwrap(); + let session = sessions.peek("client-1").unwrap(); assert!(!session.supports_encryption); assert!(!session.has_sent_common_tags); } + + // ── LRU eviction ──────────────────────────────────────────── + + #[tokio::test] + async fn lru_eviction_drops_oldest_session() { + let store = SessionStore::with_capacity(3); + let r = routes(); + store.get_or_create_session("a", false, &r).await; + store.get_or_create_session("b", false, &r).await; + store.get_or_create_session("c", false, &r).await; + + store.get_or_create_session("d", false, &r).await; + + assert!( + store.get_session("a").await.is_none(), + "a should be evicted" + ); + assert!(store.get_session("b").await.is_some()); + assert!(store.get_session("c").await.is_some()); + assert!(store.get_session("d").await.is_some()); + assert_eq!(store.session_count().await, 3); + } + + #[tokio::test] + async fn eviction_callback_fires_on_lru_eviction() { + let evicted = Arc::new(std::sync::Mutex::new(Vec::::new())); + let evicted_clone = evicted.clone(); + let r = routes(); + + let mut store = SessionStore::with_capacity(2); + store.set_eviction_callback(Arc::new(move |pubkey| { + evicted_clone.lock().unwrap().push(pubkey); + })); + + store.get_or_create_session("a", false, &r).await; + store.get_or_create_session("b", false, &r).await; + store.get_or_create_session("c", false, &r).await; + + let evicted = evicted.lock().unwrap(); + assert_eq!(evicted.len(), 1); + assert_eq!(evicted[0], "a"); + } + + #[tokio::test] + async fn eviction_safety_recreates_session_with_active_routes() { + let store = SessionStore::with_capacity(2); + let r = routes(); + store.get_or_create_session("a", true, &r).await; + store.get_or_create_session("b", false, &r).await; + + // Register an active route for client "a" in the correlation store + r.register("evt1".into(), "a".into(), json!(1), None).await; + + // Adding "c" would normally evict "a", but eviction safety recreates it + // because "a" has active routes. + store.get_or_create_session("c", false, &r).await; + + let snap = store.get_session("a").await; + assert!( + snap.is_some(), + "session with active routes must survive eviction" + ); + // "b" was evicted instead (next LRU after "a" was re-inserted) + assert!( + store.get_session("b").await.is_none(), + "b should be evicted" + ); + } + + #[tokio::test] + async fn with_capacity_sets_limit() { + let store = SessionStore::with_capacity(5); + let r = routes(); + for i in 0..10 { + store + .get_or_create_session(&format!("client-{i}"), false, &r) + .await; + } + assert_eq!(store.session_count().await, 5); + } } diff --git a/tests/conformance_stores.rs b/tests/conformance_stores.rs index 55917ec..8216403 100644 --- a/tests/conformance_stores.rs +++ b/tests/conformance_stores.rs @@ -138,11 +138,16 @@ mod client_correlation_store { mod server_session_store { use super::*; + fn routes() -> ServerEventRouteStore { + ServerEventRouteStore::new() + } + #[tokio::test] async fn create_and_retrieve_sessions() { let store = SessionStore::new(); + let r = routes(); - let created = store.get_or_create_session("client-1", true).await; + let created = store.get_or_create_session("client-1", true, &r).await; assert!(created); let session = store.get_session("client-1").await.unwrap(); @@ -156,7 +161,8 @@ mod server_session_store { #[tokio::test] async fn mark_sessions_as_initialized() { let store = SessionStore::new(); - store.get_or_create_session("client-1", false).await; + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; let result = store.mark_initialized("client-1").await; assert!(result); @@ -168,7 +174,8 @@ mod server_session_store { #[tokio::test] async fn remove_sessions() { let store = SessionStore::new(); - store.get_or_create_session("client-1", false).await; + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; let result = store.remove_session("client-1").await; assert!(result); @@ -178,8 +185,9 @@ mod server_session_store { #[tokio::test] async fn clear_all_sessions() { let store = SessionStore::new(); - store.get_or_create_session("client-1", false).await; - store.get_or_create_session("client-2", true).await; + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; + store.get_or_create_session("client-2", true, &r).await; store.clear().await; @@ -191,8 +199,9 @@ mod server_session_store { #[tokio::test] async fn iterate_over_all_sessions() { let store = SessionStore::new(); - store.get_or_create_session("client-1", false).await; - store.get_or_create_session("client-2", true).await; + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; + store.get_or_create_session("client-2", true, &r).await; let sessions = store.get_all_sessions().await; assert_eq!(sessions.len(), 2); diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index e1c4914..90ffe59 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -3348,3 +3348,178 @@ async fn client_optional_encryption_emits_discovery_tags() { "inner event must carry support_encryption_ephemeral tag (Optional gift-wrap mode)" ); } +// ── Multi-client support ───────────────────────────────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn multi_client_concurrent_requests_both_get_responses() { + // Two different clients send requests to the same server; both must get + // their own response (the single-peer barrier is removed). + let mut pools = MockRelayPool::create_linked_group(3); + let server_pool = pools.remove(0); + let client_b_pool = pools.remove(1); + let client_a_pool = pools.remove(0); + let server_pubkey = server_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut client_a = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_a_pool), + ) + .await + .expect("create client A"); + + let mut client_b = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_b_pool), + ) + .await + .expect("create client B"); + + let mut server_rx = server + .take_message_receiver() + .expect("server message receiver"); + let mut client_a_rx = client_a + .take_message_receiver() + .expect("client A message receiver"); + let mut client_b_rx = client_b + .take_message_receiver() + .expect("client B message receiver"); + + server.start().await.expect("server start"); + client_a.start().await.expect("client A start"); + client_b.start().await.expect("client B start"); + let_event_loops_start().await; + + // Client A sends a request. + let req_a = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "tools/list".to_string(), + params: None, + }); + client_a.send(&req_a).await.expect("client A send"); + + // Client B sends a request. + let req_b = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(2), + method: "tools/list".to_string(), + params: None, + }); + client_b.send(&req_b).await.expect("client B send"); + + // Server receives both requests (order may vary). + let incoming_1 = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout rx 1") + .expect("rx closed 1"); + let incoming_2 = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .expect("timeout rx 2") + .expect("rx closed 2"); + + // Send responses to both. + let resp_1 = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: incoming_1.message.id().unwrap().clone(), + result: serde_json::json!({"tools": []}), + }); + server + .send_response(&incoming_1.event_id, resp_1) + .await + .expect("server respond to 1"); + + let resp_2 = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: incoming_2.message.id().unwrap().clone(), + result: serde_json::json!({"tools": []}), + }); + server + .send_response(&incoming_2.event_id, resp_2) + .await + .expect("server respond to 2"); + + // Both clients must receive their respective response. + let resp_a = tokio::time::timeout(Duration::from_millis(500), client_a_rx.recv()) + .await + .expect("timeout client A response") + .expect("client A channel closed"); + let resp_b = tokio::time::timeout(Duration::from_millis(500), client_b_rx.recv()) + .await + .expect("timeout client B response") + .expect("client B channel closed"); + + assert!( + matches!(resp_a, JsonRpcMessage::Response(_)), + "client A must receive a response" + ); + assert!( + matches!(resp_b, JsonRpcMessage::Response(_)), + "client B must receive a response" + ); +} + +// ── Session store LRU tests ───────────────────────────────────────────────── + +use contextvm_sdk::transport::server::SessionStore; +use contextvm_sdk::ServerEventRouteStore; + +#[tokio::test] +async fn session_store_lru_eviction() { + let store = SessionStore::with_capacity(3); + let r = ServerEventRouteStore::new(); + store.get_or_create_session("a", false, &r).await; + store.get_or_create_session("b", false, &r).await; + store.get_or_create_session("c", false, &r).await; + + // 4th session evicts the oldest ("a") + store.get_or_create_session("d", false, &r).await; + + assert!( + store.get_session("a").await.is_none(), + "oldest session must be evicted when capacity is exceeded" + ); + assert!(store.get_session("b").await.is_some()); + assert!(store.get_session("c").await.is_some()); + assert!(store.get_session("d").await.is_some()); + assert_eq!(store.session_count().await, 3); +} + +#[tokio::test] +async fn session_store_eviction_callback_fires() { + let evicted_keys: Arc>> = + Arc::new(std::sync::Mutex::new(Vec::new())); + let captured = evicted_keys.clone(); + let r = ServerEventRouteStore::new(); + + let mut store = SessionStore::with_capacity(2); + store.set_eviction_callback(std::sync::Arc::new(move |pubkey| { + captured.lock().unwrap().push(pubkey); + })); + + store.get_or_create_session("x", false, &r).await; + store.get_or_create_session("y", false, &r).await; + // Adding "z" evicts "x" + store.get_or_create_session("z", false, &r).await; + + let keys = evicted_keys.lock().unwrap(); + assert_eq!(keys.len(), 1, "callback must fire exactly once"); + assert_eq!(keys[0], "x", "evicted key must be the oldest session"); +} From 4eafd7890b8a53d9e81d9185f2d8fb8fcc392dd4 Mon Sep 17 00:00:00 2001 From: Harsh Date: Tue, 5 May 2026 20:03:28 +0530 Subject: [PATCH 061/116] docs: clarify timeout and request_timeout as correlation-retention TTLs --- src/transport/client/mod.rs | 6 +++++- src/transport/server/mod.rs | 6 +++++- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index 0aaafc6..62c796d 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -41,7 +41,11 @@ pub struct NostrClientTransportConfig { pub gift_wrap_mode: GiftWrapMode, /// Stateless mode: emulate initialize response locally. pub is_stateless: bool, - /// Response timeout (default: 30s). + /// Correlation-retention TTL for pending client requests (default: 30s). + /// + /// Stale pending entries older than this are swept from the correlation store. + /// This prevents leaks -- rmcp owns actual request timeout and cancellation. + /// Keep this value above your rmcp request timeout to avoid premature cleanup. pub timeout: Duration, /// Optional log file path. Logs always go to stdout and are also appended here when set. pub log_file_path: Option, diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 9dd3fc3..4c1b808 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -52,7 +52,11 @@ pub struct NostrServerTransportConfig { pub cleanup_interval: Duration, /// Session timeout (default: 300s). pub session_timeout: Duration, - /// Request route timeout (default: 60s). Stale routes older than this are swept. + /// Correlation-retention TTL for server-side event routes (default: 60s). + /// + /// Stale route entries older than this are swept from the correlation store. + /// This prevents leaks -- rmcp owns actual request timeout and cancellation. + /// Keep this value above your rmcp request timeout to avoid premature cleanup. pub request_timeout: Duration, /// Optional log file path. Logs always go to stdout and are also appended here when set. pub log_file_path: Option, From bd381bec81a8594cf4b12dee1455b18c24c8a540 Mon Sep 17 00:00:00 2001 From: Harsh Date: Tue, 5 May 2026 21:59:49 +0530 Subject: [PATCH 062/116] fix: cancel spawned event loop tasks on close() using CancellationToken --- Cargo.toml | 3 ++ src/transport/client/mod.rs | 52 ++++++++++++++---- src/transport/server/mod.rs | 98 +++++++++++++++++++++++++--------- tests/transport_integration.rs | 62 +++++++++++++++++++++ 4 files changed, 181 insertions(+), 34 deletions(-) diff --git a/Cargo.toml b/Cargo.toml index 95e675a..9ed83c7 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -31,6 +31,9 @@ rmcp = { version = "0.16.0", features = ["server", "client", "macros", "transpor # LRU cache for gift-wrap (outer event id) deduplication lru = "0.12" +# CancellationToken for graceful event-loop shutdown +tokio-util = { version = "0.7", features = ["rt"] } + [features] # Enable rmcp by default while keeping legacy APIs available. default = ["rmcp"] diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index 62c796d..53f494b 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -14,6 +14,7 @@ use std::time::Duration; use lru::LruCache; use nostr_sdk::prelude::*; +use tokio_util::sync::CancellationToken; use crate::core::constants::*; use crate::core::error::{Error, Result}; @@ -85,8 +86,12 @@ pub struct NostrClientTransport { /// so failed decrypt/verify can be retried on redelivery. seen_gift_wrap_ids: Arc>>, /// Channel for receiving processed MCP messages from the event loop. - message_tx: tokio::sync::mpsc::UnboundedSender, + message_tx: Option>, message_rx: Option>, + /// Token used to cancel the spawned event loop on close(). + cancellation_token: CancellationToken, + /// Handle for the spawned event loop task. + event_loop_handle: Option>, } impl NostrClientTransport { @@ -142,8 +147,10 @@ impl NostrClientTransport { server_initialize_event: Arc::new(Mutex::new(None)), server_supports_ephemeral: Arc::new(AtomicBool::new(false)), seen_gift_wrap_ids, - message_tx: tx, + message_tx: Some(tx), message_rx: Some(rx), + cancellation_token: CancellationToken::new(), + event_loop_handle: None, }) } @@ -190,8 +197,10 @@ impl NostrClientTransport { server_initialize_event: Arc::new(Mutex::new(None)), server_supports_ephemeral: Arc::new(AtomicBool::new(false)), seen_gift_wrap_ids, - message_tx: tx, + message_tx: Some(tx), message_rx: Some(rx), + cancellation_token: CancellationToken::new(), + event_loop_handle: None, }) } @@ -236,11 +245,15 @@ impl NostrClientTransport { error })?; - // Spawn event loop + // Spawn event loop with cancellation support let relay_pool = Arc::clone(&self.base.relay_pool); let pending = self.pending_requests.clone(); let server_pubkey = self.server_pubkey; - let tx = self.message_tx.clone(); + let tx = self + .message_tx + .as_ref() + .expect("message_tx must exist before start()") + .clone(); let encryption_mode = self.config.encryption_mode; let gift_wrap_mode = self.config.gift_wrap_mode; let discovered_caps = self.discovered_server_capabilities.clone(); @@ -248,8 +261,9 @@ impl NostrClientTransport { let server_supports_ephemeral = self.server_supports_ephemeral.clone(); let seen_gift_wrap_ids = self.seen_gift_wrap_ids.clone(); let timeout = self.config.timeout; + let token = self.cancellation_token.child_token(); - tokio::spawn(async move { + self.event_loop_handle = Some(tokio::spawn(async move { Self::event_loop( relay_pool, pending, @@ -262,9 +276,10 @@ impl NostrClientTransport { server_supports_ephemeral, seen_gift_wrap_ids, timeout, + token, ) .await; - }); + })); tracing::info!( target: LOG_TARGET, @@ -274,8 +289,13 @@ impl NostrClientTransport { Ok(()) } - /// Close the transport. + /// Close the transport — cancels the event loop and disconnects from relays. pub async fn close(&mut self) -> Result<()> { + self.cancellation_token.cancel(); + if let Some(handle) = self.event_loop_handle.take() { + let _ = handle.await; + } + self.message_tx.take(); self.base.disconnect().await } @@ -384,7 +404,9 @@ impl NostrClientTransport { } }), }); - let _ = self.message_tx.send(response); + if let Some(ref tx) = self.message_tx { + let _ = tx.send(response); + } } #[allow(clippy::too_many_arguments)] @@ -400,6 +422,7 @@ impl NostrClientTransport { server_supports_ephemeral: Arc, seen_gift_wrap_ids: Arc>>, timeout: Duration, + cancel: CancellationToken, ) { let mut notifications = relay_pool.notifications(); // Sweep interval: half the timeout, clamped to [1s, 30s]. @@ -409,6 +432,13 @@ impl NostrClientTransport { loop { tokio::select! { + _ = cancel.cancelled() => { + tracing::info!( + target: LOG_TARGET, + "Client event loop cancelled" + ); + break; + } result = notifications.recv() => { let notification = match result { Ok(n) => n, @@ -1035,8 +1065,10 @@ mod tests { server_initialize_event: Arc::new(Mutex::new(None)), server_supports_ephemeral: Arc::new(AtomicBool::new(false)), seen_gift_wrap_ids: Arc::new(Mutex::new(LruCache::new(NonZeroUsize::new(10).unwrap()))), - message_tx: tokio::sync::mpsc::unbounded_channel().0, + message_tx: Some(tokio::sync::mpsc::unbounded_channel().0), message_rx: None, + cancellation_token: CancellationToken::new(), + event_loop_handle: None, } } diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index ec4ebcb..a222a3e 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -18,6 +18,7 @@ use std::time::Duration; use lru::LruCache; use nostr_sdk::prelude::*; +use tokio_util::sync::CancellationToken; use crate::core::constants::*; use crate::core::error::{Error, Result}; @@ -104,8 +105,12 @@ pub struct NostrServerTransport { /// so failed decrypt/verify can be retried on redelivery. seen_gift_wrap_ids: Arc>>, /// Channel for incoming MCP messages (consumed by the MCP server). - message_tx: tokio::sync::mpsc::UnboundedSender, + message_tx: Option>, message_rx: Option>, + /// Token used to cancel spawned tasks (event loop + cleanup) on close(). + cancellation_token: CancellationToken, + /// Handles for spawned tasks (event loop + cleanup). + task_handles: Vec>, } /// An incoming MCP request with metadata for routing the response. @@ -164,8 +169,10 @@ impl NostrServerTransport { event_routes: ServerEventRouteStore::new(), request_wrap_kinds: Arc::new(RwLock::new(HashMap::new())), seen_gift_wrap_ids, - message_tx: tx, + message_tx: Some(tx), message_rx: Some(rx), + cancellation_token: CancellationToken::new(), + task_handles: Vec::new(), }) } @@ -201,8 +208,10 @@ impl NostrServerTransport { request_wrap_kinds: Arc::new(RwLock::new(HashMap::new())), event_routes: ServerEventRouteStore::new(), seen_gift_wrap_ids, - message_tx: tx, + message_tx: Some(tx), message_rx: Some(rx), + cancellation_token: CancellationToken::new(), + task_handles: Vec::new(), }) } @@ -247,12 +256,16 @@ impl NostrServerTransport { error })?; - // Spawn event loop + // Spawn event loop with cancellation support let relay_pool = Arc::clone(&self.base.relay_pool); let sessions = self.sessions.clone(); let event_routes = self.event_routes.clone(); let request_wrap_kinds = self.request_wrap_kinds.clone(); - let tx = self.message_tx.clone(); + let tx = self + .message_tx + .as_ref() + .expect("message_tx must exist before start()") + .clone(); let allowed = self.config.allowed_public_keys.clone(); let excluded = self.config.excluded_capabilities.clone(); let encryption_mode = self.config.encryption_mode; @@ -261,8 +274,9 @@ impl NostrServerTransport { let server_info = self.config.server_info.clone(); let extra_common_tags = self.extra_common_tags.clone(); let seen_gift_wrap_ids = self.seen_gift_wrap_ids.clone(); + let event_loop_token = self.cancellation_token.child_token(); - tokio::spawn(async move { + let event_loop_handle = tokio::spawn(async move { Self::event_loop( relay_pool, sessions, @@ -277,35 +291,47 @@ impl NostrServerTransport { server_info, extra_common_tags, seen_gift_wrap_ids, + event_loop_token, ) .await; }); - // Spawn session cleanup + // Spawn session cleanup with cancellation support let sessions_cleanup = self.sessions.clone(); let event_routes_cleanup = self.event_routes.clone(); let request_wrap_kinds_cleanup = self.request_wrap_kinds.clone(); let cleanup_interval = self.config.cleanup_interval; let session_timeout = self.config.session_timeout; let request_timeout = self.config.request_timeout; + let cleanup_token = self.cancellation_token.child_token(); - tokio::spawn(async move { + let cleanup_handle = tokio::spawn(async move { let mut interval = tokio::time::interval(cleanup_interval); loop { - interval.tick().await; - let cleaned = Self::cleanup_sessions( - &sessions_cleanup, - &event_routes_cleanup, - &request_wrap_kinds_cleanup, - session_timeout, - ) - .await; - if cleaned > 0 { - tracing::info!( - target: LOG_TARGET, - cleaned_sessions = cleaned, - "Cleaned up inactive sessions" - ); + tokio::select! { + _ = cleanup_token.cancelled() => { + tracing::info!( + target: LOG_TARGET, + "Server cleanup task cancelled" + ); + break; + } + _ = interval.tick() => { + let cleaned = Self::cleanup_sessions( + &sessions_cleanup, + &event_routes_cleanup, + &request_wrap_kinds_cleanup, + session_timeout, + ) + .await; + if cleaned > 0 { + tracing::info!( + target: LOG_TARGET, + cleaned_sessions = cleaned, + "Cleaned up inactive sessions" + ); + } + } } // Sweep stale route entries in active sessions (rmcp handles timeout errors). @@ -328,6 +354,9 @@ impl NostrServerTransport { } }); + self.task_handles.push(event_loop_handle); + self.task_handles.push(cleanup_handle); + tracing::info!( target: LOG_TARGET, relay_count = self.config.relay_urls.len(), @@ -338,8 +367,13 @@ impl NostrServerTransport { Ok(()) } - /// Close the transport. + /// Close the transport — cancels event loop and cleanup tasks, then disconnects. pub async fn close(&mut self) -> Result<()> { + self.cancellation_token.cancel(); + for handle in self.task_handles.drain(..) { + let _ = handle.await; + } + self.message_tx.take(); self.base.disconnect().await?; self.sessions.clear().await; self.event_routes.clear().await; @@ -849,10 +883,26 @@ impl NostrServerTransport { server_info: Option, extra_common_tags: Vec, seen_gift_wrap_ids: Arc>>, + cancel: CancellationToken, ) { let mut notifications = relay_pool.notifications(); - while let Ok(notification) = notifications.recv().await { + loop { + let notification = tokio::select! { + _ = cancel.cancelled() => { + tracing::info!( + target: LOG_TARGET, + "Server event loop cancelled" + ); + break; + } + result = notifications.recv() => { + match result { + Ok(n) => n, + Err(_) => break, + } + } + }; if let RelayPoolNotification::Event { event, .. } = notification { let is_gift_wrap = event.kind == Kind::Custom(GIFT_WRAP_KIND) || event.kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND); diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index 90ffe59..5bddfad 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -3523,3 +3523,65 @@ async fn session_store_eviction_callback_fires() { assert_eq!(keys.len(), 1, "callback must fire exactly once"); assert_eq!(keys[0], "x", "evicted key must be the oldest session"); } + +// ── Event loop cancellation on close() ────────────────────────────────────── + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn client_close_stops_event_loop() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig { + server_pubkey: server_pubkey.to_hex(), + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut rx = client.take_message_receiver().expect("message receiver"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Close should cancel the event loop, causing the rx channel to close. + client.close().await.expect("client close"); + + // The receiver must resolve to None (closed) within a short timeout. + let result = tokio::time::timeout(Duration::from_millis(200), rx.recv()).await; + assert!( + matches!(result, Ok(None)), + "after close(), message receiver must yield None (channel closed)" + ); +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn server_close_stops_event_loop() { + let (_client_pool, server_pool) = MockRelayPool::create_pair(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig { + encryption_mode: EncryptionMode::Disabled, + ..Default::default() + }, + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let mut rx = server.take_message_receiver().expect("message receiver"); + server.start().await.expect("server start"); + let_event_loops_start().await; + + // Close should cancel both event loop and cleanup tasks. + server.close().await.expect("server close"); + + // The receiver must resolve to None (closed) within a short timeout. + let result = tokio::time::timeout(Duration::from_millis(200), rx.recv()).await; + assert!( + matches!(result, Ok(None)), + "after close(), message receiver must yield None (channel closed)" + ); +} From 4d705aaa9aa16a065813a9c30ce0cab1523f42cc Mon Sep 17 00:00:00 2001 From: ContextVM Date: Wed, 6 May 2026 17:46:22 +0200 Subject: [PATCH 063/116] refactor(rmcp): add direct transport adapters for native ContextVM services Introduce direct rmcp adapter entrypoints over the raw Nostr transports so native ContextVM servers and clients can follow the expected transport-first serve flow. --- examples/native_echo_client.rs | 96 ++++++++++++++++++++++++++++ examples/native_echo_server.rs | 107 ++++++++++++++++++++++++++++++++ src/gateway/mod.rs | 8 ++- src/proxy/mod.rs | 8 ++- src/rmcp_transport/mod.rs | 2 + src/rmcp_transport/transport.rs | 55 ++++++++++++++++ src/rmcp_transport/worker.rs | 10 +++ 7 files changed, 280 insertions(+), 6 deletions(-) create mode 100644 examples/native_echo_client.rs create mode 100644 examples/native_echo_server.rs create mode 100644 src/rmcp_transport/transport.rs diff --git a/examples/native_echo_client.rs b/examples/native_echo_client.rs new file mode 100644 index 0000000..7c46f87 --- /dev/null +++ b/examples/native_echo_client.rs @@ -0,0 +1,96 @@ +//! Example: Native rmcp client over ContextVM/Nostr. +//! +//! Usage: +//! cargo run --example native_echo_client -- + +use anyhow::{Context, Result}; +use contextvm_sdk::transport::client::{NostrClientTransport, NostrClientTransportConfig}; +use contextvm_sdk::{signer, EncryptionMode, GiftWrapMode}; +use rmcp::{ + model::{CallToolRequestParams, CallToolResult}, + ClientHandler, ServiceExt, +}; + +const RELAY_URL: &str = "wss://relay.contextvm.org"; + +#[derive(Clone, Default)] +struct EchoClient; + +impl ClientHandler for EchoClient {} + +#[tokio::main] +async fn main() -> Result<()> { + tracing_subscriber::fmt() + .with_env_filter( + tracing_subscriber::EnvFilter::from_default_env() + .add_directive("contextvm_sdk=info".parse()?) + .add_directive("rmcp=warn".parse()?), + ) + .init(); + + let server_pubkey = std::env::args() + .nth(1) + .context("Usage: native_echo_client ")?; + + let signer = signer::generate(); + println!("Native ContextVM echo client starting"); + println!("Relay: {RELAY_URL}"); + println!("Client pubkey: {}", signer.public_key().to_hex()); + println!("Target server pubkey: {server_pubkey}"); + + let transport = NostrClientTransport::new( + signer, + NostrClientTransportConfig { + relay_urls: vec![RELAY_URL.to_string()], + server_pubkey, + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + ..Default::default() + }, + ) + .await?; + + let client = EchoClient.serve(transport.into_rmcp_transport()).await?; + + let peer_info = client + .peer_info() + .context("server did not provide peer info after initialize")?; + println!("Connected to: {:?}", peer_info.server_info.name); + + let tools = client.list_all_tools().await?; + println!("Discovered {} tool(s):", tools.len()); + for tool in &tools { + println!("- {}", tool.name); + } + + let result = client + .call_tool(CallToolRequestParams { + name: "echo".into(), + arguments: serde_json::from_value(serde_json::json!({ + "message": "hello from native contextvm client" + })) + .ok(), + meta: None, + task: None, + }) + .await?; + + println!("Echo result: {}", first_text(&result)); + + client.cancel().await?; + Ok(()) +} + +fn first_text(result: &CallToolResult) -> String { + result + .content + .iter() + .find_map(|content| { + if let rmcp::model::RawContent::Text(text) = &content.raw { + Some(text.text.clone()) + } else { + None + } + }) + .unwrap_or_default() +} diff --git a/examples/native_echo_server.rs b/examples/native_echo_server.rs new file mode 100644 index 0000000..dc3b302 --- /dev/null +++ b/examples/native_echo_server.rs @@ -0,0 +1,107 @@ +//! Example: Native rmcp echo server over ContextVM/Nostr. +//! +//! Usage: +//! cargo run --example native_echo_server + +use anyhow::Result; +use contextvm_sdk::transport::server::{NostrServerTransport, NostrServerTransportConfig}; +use contextvm_sdk::{signer, EncryptionMode, GiftWrapMode, ServerInfo}; +use rmcp::{ + handler::server::{router::tool::ToolRouter, wrapper::Parameters}, + model::*, + schemars, tool, tool_handler, tool_router, ServerHandler, ServiceExt, +}; + +const RELAY_URL: &str = "wss://relay.contextvm.org"; + +#[derive(Debug, serde::Deserialize, schemars::JsonSchema)] +struct EchoParams { + message: String, +} + +#[derive(Clone)] +struct EchoServer { + tool_router: ToolRouter, +} + +impl EchoServer { + fn new() -> Self { + Self { + tool_router: Self::tool_router(), + } + } +} + +#[tool_router] +impl EchoServer { + #[tool(description = "Echo a message back unchanged")] + async fn echo( + &self, + Parameters(EchoParams { message }): Parameters, + ) -> Result { + Ok(CallToolResult::success(vec![Content::text(format!( + "Echo: {message}" + ))])) + } +} + +#[tool_handler] +impl ServerHandler for EchoServer { + fn get_info(&self) -> rmcp::model::ServerInfo { + rmcp::model::ServerInfo { + protocol_version: ProtocolVersion::LATEST, + capabilities: ServerCapabilities::builder().enable_tools().build(), + server_info: Implementation { + name: "contextvm-native-echo".to_string(), + title: Some("ContextVM Native Echo Server".to_string()), + version: "0.1.0".to_string(), + description: Some("Native rmcp echo server over ContextVM/Nostr".to_string()), + icons: None, + website_url: None, + }, + instructions: Some("Call the echo tool with a message string".to_string()), + } + } +} + +#[tokio::main] +async fn main() -> Result<()> { + tracing_subscriber::fmt() + .with_env_filter( + tracing_subscriber::EnvFilter::from_default_env() + .add_directive("contextvm_sdk=info".parse()?) + .add_directive("rmcp=warn".parse()?), + ) + .init(); + + let signer = signer::generate(); + let pubkey = signer.public_key().to_hex(); + + println!("Native ContextVM echo server starting"); + println!("Relay: {RELAY_URL}"); + println!("Server pubkey: {pubkey}"); + + let transport = NostrServerTransport::new( + signer, + NostrServerTransportConfig { + relay_urls: vec![RELAY_URL.to_string()], + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + is_announced_server: false, + server_info: Some(ServerInfo { + name: Some("contextvm-native-echo".to_string()), + about: Some("Native rmcp echo server example".to_string()), + ..Default::default() + }), + ..Default::default() + }, + ) + .await?; + + let service = EchoServer::new() + .serve(transport.into_rmcp_transport()) + .await?; + println!("Server ready. Press Ctrl+C to stop."); + service.waiting().await?; + Ok(()) +} diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index b5ae17d..0feb03a 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -94,12 +94,14 @@ impl NostrMCPGateway { T: nostr_sdk::prelude::IntoNostrSigner, H: rmcp::ServerHandler, { - use crate::rmcp_transport::NostrServerWorker; + use crate::NostrServerTransport; use rmcp::ServiceExt; - let worker = NostrServerWorker::new(signer, config.nostr_config).await?; + let transport = NostrServerTransport::new(signer, config.nostr_config) + .await? + .into_rmcp_transport(); handler - .serve(worker) + .serve(transport) .await .map_err(|e| Error::Other(format!("rmcp server initialization failed: {e}"))) } diff --git a/src/proxy/mod.rs b/src/proxy/mod.rs index 1322fa0..c6c1a34 100644 --- a/src/proxy/mod.rs +++ b/src/proxy/mod.rs @@ -83,12 +83,14 @@ impl NostrMCPProxy { T: nostr_sdk::prelude::IntoNostrSigner, H: rmcp::ClientHandler, { - use crate::rmcp_transport::NostrClientWorker; + use crate::NostrClientTransport; use rmcp::ServiceExt; - let worker = NostrClientWorker::new(signer, config.nostr_config).await?; + let transport = NostrClientTransport::new(signer, config.nostr_config) + .await? + .into_rmcp_transport(); handler - .serve(worker) + .serve(transport) .await .map_err(|e| Error::Other(format!("rmcp client initialization failed: {e}"))) } diff --git a/src/rmcp_transport/mod.rs b/src/rmcp_transport/mod.rs index 57919b5..bf5c99f 100644 --- a/src/rmcp_transport/mod.rs +++ b/src/rmcp_transport/mod.rs @@ -3,6 +3,7 @@ //! This module bridges the existing Nostr transport implementation with rmcp services. pub mod convert; +pub mod transport; pub mod worker; #[cfg(test)] @@ -12,4 +13,5 @@ pub use convert::{ internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, rmcp_server_tx_to_internal, }; +pub use transport::{NostrClientRmcpTransport, NostrServerRmcpTransport}; pub use worker::{NostrClientWorker, NostrServerWorker}; diff --git a/src/rmcp_transport/transport.rs b/src/rmcp_transport/transport.rs new file mode 100644 index 0000000..f10223a --- /dev/null +++ b/src/rmcp_transport/transport.rs @@ -0,0 +1,55 @@ +//! Direct rmcp adapter entrypoints over raw ContextVM Nostr transports. + +use crate::{ + core::error::Error, + rmcp_transport::worker::{NostrClientWorker, NostrServerWorker}, + transport::{client::NostrClientTransport, server::NostrServerTransport}, +}; + +/// Direct rmcp adapter for [`NostrServerTransport`](src/transport/server/mod.rs:87). +pub struct NostrServerRmcpTransport { + worker: NostrServerWorker, +} + +impl NostrServerTransport { + /// Convert this raw transport into an rmcp-compatible transport adapter. + pub fn into_rmcp_transport(self) -> NostrServerRmcpTransport { + NostrServerRmcpTransport { + worker: NostrServerWorker::from_transport(self), + } + } +} + +impl rmcp::transport::IntoTransport + for NostrServerRmcpTransport +{ + fn into_transport( + self, + ) -> impl rmcp::transport::Transport + 'static { + self.worker.into_transport() + } +} + +/// Direct rmcp adapter for [`NostrClientTransport`](src/transport/client/mod.rs:69). +pub struct NostrClientRmcpTransport { + worker: NostrClientWorker, +} + +impl NostrClientTransport { + /// Convert this raw transport into an rmcp-compatible transport adapter. + pub fn into_rmcp_transport(self) -> NostrClientRmcpTransport { + NostrClientRmcpTransport { + worker: NostrClientWorker::from_transport(self), + } + } +} + +impl rmcp::transport::IntoTransport + for NostrClientRmcpTransport +{ + fn into_transport( + self, + ) -> impl rmcp::transport::Transport + 'static { + self.worker.into_transport() + } +} diff --git a/src/rmcp_transport/worker.rs b/src/rmcp_transport/worker.rs index a42d57e..4263c8d 100644 --- a/src/rmcp_transport/worker.rs +++ b/src/rmcp_transport/worker.rs @@ -39,6 +39,11 @@ impl NostrServerWorker { Ok(Self { transport }) } + /// Create a worker from an already-constructed raw transport. + pub fn from_transport(transport: NostrServerTransport) -> Self { + Self { transport } + } + /// Access the wrapped transport. pub fn transport(&self) -> &NostrServerTransport { &self.transport @@ -157,6 +162,11 @@ impl NostrClientWorker { Ok(Self { transport }) } + /// Create a worker from an already-constructed raw transport. + pub fn from_transport(transport: NostrClientTransport) -> Self { + Self { transport } + } + /// Access the wrapped transport. pub fn transport(&self) -> &NostrClientTransport { &self.transport From b585505d36ab87f260581546ed00bde939069048 Mon Sep 17 00:00:00 2001 From: ContextVM Date: Wed, 6 May 2026 17:50:13 +0200 Subject: [PATCH 064/116] docs: add SDK documentation links to README --- README.md | 16 +++++ docs/README.md | 41 ++++++++++++ docs/client-transport.md | 117 ++++++++++++++++++++++++++++++++++ docs/discovery.md | 66 +++++++++++++++++++ docs/encryption.md | 78 +++++++++++++++++++++++ docs/gateway.md | 129 +++++++++++++++++++++++++++++++++++++ docs/overview.md | 103 ++++++++++++++++++++++++++++++ docs/proxy.md | 104 ++++++++++++++++++++++++++++++ docs/rmcp.md | 44 +++++++++++++ docs/server-transport.md | 134 +++++++++++++++++++++++++++++++++++++++ docs/transports.md | 129 +++++++++++++++++++++++++++++++++++++ sdk | 2 +- 12 files changed, 962 insertions(+), 1 deletion(-) create mode 100644 docs/README.md create mode 100644 docs/client-transport.md create mode 100644 docs/discovery.md create mode 100644 docs/encryption.md create mode 100644 docs/gateway.md create mode 100644 docs/overview.md create mode 100644 docs/proxy.md create mode 100644 docs/rmcp.md create mode 100644 docs/server-transport.md create mode 100644 docs/transports.md diff --git a/README.md b/README.md index dfe1d66..6bafd7f 100644 --- a/README.md +++ b/README.md @@ -168,6 +168,22 @@ async fn main() -> contextvm_sdk::Result<()> { } ``` +## Documentation + +The in-repo Rust SDK guides live in [`docs/README.md`](docs/README.md): + +- For most users, the main pattern is: build an `rmcp` server or client, then attach [`NostrServerTransport`](src/transport/server/mod.rs:87) or [`NostrClientTransport`](src/transport/client/mod.rs:69). + +- [`docs/overview.md`](docs/overview.md) +- [`docs/server-transport.md`](docs/server-transport.md) +- [`docs/client-transport.md`](docs/client-transport.md) +- [`docs/discovery.md`](docs/discovery.md) +- [`docs/encryption.md`](docs/encryption.md) +- [`docs/rmcp.md`](docs/rmcp.md) +- [`docs/transports.md`](docs/transports.md) +- [`docs/gateway.md`](docs/gateway.md) +- [`docs/proxy.md`](docs/proxy.md) + ## Module Overview | Module | Description | diff --git a/docs/README.md b/docs/README.md new file mode 100644 index 0000000..30851f0 --- /dev/null +++ b/docs/README.md @@ -0,0 +1,41 @@ +# Rust SDK Docs + +This directory contains the in-repo Rust SDK documentation for `contextvm-sdk`. + +## Start here + +The main mental model is: + +1. build an `rmcp` server or client +2. attach a ContextVM transport +3. run MCP over Nostr + +For most native Rust applications, the primary entry points are [`NostrServerTransport`](src/transport/server/mod.rs:87) and [`NostrClientTransport`](src/transport/client/mod.rs:69), used together with `rmcp` services via [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20). + +## Guides + +### Native ContextVM applications + +- [`overview.md`](docs/overview.md) +- [`server-transport.md`](docs/server-transport.md) +- [`client-transport.md`](docs/client-transport.md) +- [`encryption.md`](docs/encryption.md) +- [`discovery.md`](docs/discovery.md) + +### Bridging existing MCP applications + +- [`gateway.md`](docs/gateway.md) +- [`proxy.md`](docs/proxy.md) + +### Integration notes + +- [`rmcp.md`](docs/rmcp.md) +- [`transports.md`](docs/transports.md) + +## Documentation goals + +The docs here are concise and implementation-driven. + +They are derived from public APIs in [`src/lib.rs`](src/lib.rs:1), `rmcp` service APIs in [`rust-sdk/crates/rmcp/src/lib.rs`](rust-sdk/crates/rmcp/src/lib.rs), example programs such as [`examples/rmcp_integration_test.rs`](examples/rmcp_integration_test.rs), and transport/conformance tests such as [`tests/transport_integration.rs`](tests/transport_integration.rs). + +They are meant to be migrated later into [`contextvm-docs/src/content/docs`](contextvm-docs/src/content/docs). diff --git a/docs/client-transport.md b/docs/client-transport.md new file mode 100644 index 0000000..c268932 --- /dev/null +++ b/docs/client-transport.md @@ -0,0 +1,117 @@ +# Native Client Guide + +Use this path when you are building a native ContextVM client in Rust. + +The recommended architecture is: + +- define an `rmcp` client handler or use a lightweight client info object +- create a [`NostrClientTransport`](src/transport/client/mod.rs:69) +- attach the transport with `rmcp`'s [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) + +This follows the same pattern as `rmcp` client examples such as [`rust-sdk/examples/clients/src/streamable_http.rs`](rust-sdk/examples/clients/src/streamable_http.rs), except the transport is ContextVM over Nostr instead of HTTP. + +## The high-level shape + +In `rmcp`, a client is typically started with `client_info.serve(transport)`, as shown in [`rust-sdk/examples/clients/src/streamable_http.rs:24`](rust-sdk/examples/clients/src/streamable_http.rs:24). + +For ContextVM, the transport becomes [`NostrClientTransport`](src/transport/client/mod.rs:69), then you convert it into an rmcp-compatible adapter with [`into_rmcp_transport()`](src/rmcp_transport/transport.rs:40). + +## Example + +```rust +use contextvm_sdk::transport::client::{ + NostrClientTransport, NostrClientTransportConfig, +}; +use contextvm_sdk::{EncryptionMode, GiftWrapMode}; +use rmcp::{ + ClientHandler, ServiceExt, + model::{CallToolRequestParams, ClientCapabilities, ClientInfo, Implementation}, +}; + +#[derive(Clone, Default)] +struct DemoClient; + +impl ClientHandler for DemoClient { + fn get_info(&self) -> ClientInfo { + ClientInfo::new( + ClientCapabilities::default(), + Implementation::new("demo-client", "0.1.0"), + ) + } +} + +#[tokio::main] +async fn main() -> anyhow::Result<()> { + let signer = contextvm_sdk::signer::generate(); + + let transport = NostrClientTransport::new( + signer, + NostrClientTransportConfig { + relay_urls: vec!["wss://relay.primal.net".to_string()], + server_pubkey: "".to_string(), + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + ..Default::default() + }, + ) + .await?; + + let client = DemoClient + .serve(transport.into_rmcp_transport()) + .await?; + + let server_info = client.peer_info(); + println!("Connected to server: {server_info:#?}"); + + let tools = client.list_tools(Default::default()).await?; + println!("Available tools: {tools:#?}"); + + let result = client + .call_tool( + CallToolRequestParams::new("echo") + .with_arguments(serde_json::json!({ "message": "hello" }).as_object().cloned().unwrap()), + ) + .await?; + + println!("Tool result: {result:#?}"); + client.cancel().await?; + Ok(()) +} +``` + +This is the ContextVM equivalent of the workflow in [`rust-sdk/examples/clients/src/streamable_http.rs:19`](rust-sdk/examples/clients/src/streamable_http.rs:19) through [`rust-sdk/examples/clients/src/streamable_http.rs:43`](rust-sdk/examples/clients/src/streamable_http.rs:43), using the direct adapter [`NostrClientTransport::into_rmcp_transport()`](src/rmcp_transport/transport.rs:40). + +## What the transport adds + +[`NostrClientTransport`](src/transport/client/mod.rs:69) adds ContextVM-specific client behavior on top of `rmcp` client semantics: + +- relay connection management via [`NostrClientTransport::new()`](src/transport/client/mod.rs:94) +- target server selection through `server_pubkey` in [`NostrClientTransportConfig`](src/transport/client/mod.rs:33) +- request/response correlation via [`send()`](src/transport/client/mod.rs:283) +- server capability learning via [`learn_server_discovery()`](src/transport/client/mod.rs:477) +- optional stateless behavior via `is_stateless` in [`NostrClientTransportConfig`](src/transport/client/mod.rs:33) +- encrypted message reception and gift-wrap deduplication in [`handle_notification()`](src/transport/client/mod.rs:530) + +## Configuration fields that matter first + +Start with these fields in [`NostrClientTransportConfig`](src/transport/client/mod.rs:33): + +- `relay_urls`: relays the client uses to reach the server +- `server_pubkey`: the target server public key +- `encryption_mode`: whether plaintext is allowed +- `gift_wrap_mode`: whether to use persistent or ephemeral wrapping +- `is_stateless`: whether initialize is emulated locally for stateless workflows +- `timeout`: how long request correlation waits for a response + +## When to use this instead of the proxy + +Use this page's approach when you are writing a new Rust MCP client that should speak ContextVM natively. + +Use [`proxy.md`](docs/proxy.md) when you want a simpler message-oriented bridge and do not want the full `rmcp` running client model. + +## Behavioral notes + +- The client-side `rmcp` handshake is driven by [`serve_client()`](rust-sdk/crates/rmcp/src/service/client.rs:177). +- The initialize request is sent automatically in [`rust-sdk/crates/rmcp/src/service/client.rs:219`](rust-sdk/crates/rmcp/src/service/client.rs:219). +- Stateless initialization behavior in the ContextVM client transport is covered by [`tests/conformance_stateless_mode.rs`](tests/conformance_stateless_mode.rs). +- Capability learning and gift-wrap handling are implemented in [`src/transport/client/mod.rs:477`](src/transport/client/mod.rs:477) and [`src/transport/client/mod.rs:530`](src/transport/client/mod.rs:530). diff --git a/docs/discovery.md b/docs/discovery.md new file mode 100644 index 0000000..af9ade3 --- /dev/null +++ b/docs/discovery.md @@ -0,0 +1,66 @@ +# Discovery Guide + +The Rust SDK exposes public discovery helpers in [`src/discovery/mod.rs`](src/discovery/mod.rs). + +These functions query public announcement events so clients can find servers before opening a direct session. + +## What is discoverable + +The current implementation supports: + +- servers via [`discover_servers()`](src/discovery/mod.rs:54) +- tools via [`discover_tools()`](src/discovery/mod.rs:81) +- resources via [`discover_resources()`](src/discovery/mod.rs:90) +- prompts via [`discover_prompts()`](src/discovery/mod.rs:99) +- resource templates via [`discover_resource_templates()`](src/discovery/mod.rs:108) + +When the `rmcp` feature is enabled, typed variants are also available for tools, resources, prompts, and resource templates in [`src/discovery/mod.rs`](src/discovery/mod.rs:122). + +## Minimal example + +This follows [`examples/discovery.rs`](examples/discovery.rs). + +```rust +use contextvm_sdk::discovery; +use contextvm_sdk::relay::RelayPool; +use contextvm_sdk::signer; + +#[tokio::main] +async fn main() -> contextvm_sdk::Result<()> { + let keys = signer::generate(); + let relays = vec!["wss://relay.damus.io".to_string()]; + + let relay_pool = RelayPool::new(keys).await?; + relay_pool.connect(&relays).await?; + let client = relay_pool.client(); + + let servers = discovery::discover_servers(client, &relays).await?; + for server in &servers { + println!("server: {:?}", server.server_info.name); + + let tools = discovery::discover_tools(client, &server.pubkey_parsed, &relays).await?; + println!("tools: {}", tools.len()); + } + + relay_pool.disconnect().await?; + Ok(()) +} +``` + +## Discovery event model + +The event kinds follow the public announcement model summarized in [`README.md`](README.md:38): + +- `11316`: server announcement +- `11317`: tools list +- `11318`: resources list +- `11319`: resource templates +- `11320`: prompts list + +This aligns with the public discovery model documented in [`contextvm-docs/src/content/docs/spec/ceps/cep-6.md`](contextvm-docs/src/content/docs/spec/ceps/cep-6.md:2). + +## Important limitations + +- discovery is public metadata, not a replacement for direct transport negotiation +- the current helpers fetch and parse latest public lists, but they do not replace direct session learning +- for stateless/direct capability learning, see the behavior described in [`contextvm-docs/src/content/docs/spec/ceps/informational/cep-35.md`](contextvm-docs/src/content/docs/spec/ceps/informational/cep-35.md:60) diff --git a/docs/encryption.md b/docs/encryption.md new file mode 100644 index 0000000..fd22e5f --- /dev/null +++ b/docs/encryption.md @@ -0,0 +1,78 @@ +# Encryption Guide + +ContextVM encryption in this SDK is controlled by [`EncryptionMode`](src/core/types.rs:17) and [`GiftWrapMode`](src/core/types.rs:34). + +The direct transport behavior is aligned with the protocol references in [`contextvm-docs/src/content/docs/spec/ceps/cep-4.md`](contextvm-docs/src/content/docs/spec/ceps/cep-4.md:2) and [`contextvm-docs/src/content/docs/spec/ceps/cep-19.md`](contextvm-docs/src/content/docs/spec/ceps/cep-19.md:2). + +## Encryption modes + +[`EncryptionMode`](src/core/types.rs:17) has three modes: + +- `Optional`: accept both plaintext and encrypted traffic +- `Required`: require encrypted traffic +- `Disabled`: reject encrypted traffic and use plaintext only + +These semantics are not only conceptual; they are exercised in [`tests/transport_integration.rs`](tests/transport_integration.rs). + +## Gift-wrap modes + +[`GiftWrapMode`](src/core/types.rs:34) controls which outer encrypted event kind is used: + +- `Optional`: accept and prefer either supported mode +- `Ephemeral`: use kind `21059` +- `Persistent`: use kind `1059` + +The helper methods [`allows_kind()`](src/core/types.rs:46) and [`supports_ephemeral()`](src/core/types.rs:55) show the expected policy behavior. + +## Practical rules + +### Plaintext transport + +Plaintext ContextVM messages use kind `25910` and keep the MCP JSON-RPC payload in the event content. + +### Encrypted transport + +Encrypted ContextVM messages: + +1. serialize the MCP payload to JSON +2. encrypt it with NIP-44 +3. wrap it as a gift-wrap event using kind `1059` or `21059` + +The implementation details live in [`src/encryption/mod.rs`](src/encryption/mod.rs). + +## Response mirroring + +One important implementation detail is that server responses mirror the client’s inbound encryption format when policy allows it. + +This behavior is verified in [`tests/transport_integration.rs`](tests/transport_integration.rs) and is important for interoperable mixed-mode deployments. + +## Deduplication + +Both client and server transports deduplicate encrypted outer gift-wrap event ids before delivering them. + +This is covered by [`tests/conformance_dedup.rs`](tests/conformance_dedup.rs) and by encrypted transport integration tests in [`tests/transport_integration.rs`](tests/transport_integration.rs). + +## Example configuration + +```rust +use contextvm_sdk::core::types::{EncryptionMode, GiftWrapMode}; +use contextvm_sdk::transport::client::NostrClientTransportConfig; + +let config = NostrClientTransportConfig { + relay_urls: vec!["wss://relay.damus.io".to_string()], + server_pubkey: "".to_string(), + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + ..Default::default() +}; +``` + +## Discovery tags + +Encryption support is also surfaced through discovery tags and first-message capability learning, consistent with [`contextvm-docs/src/content/docs/spec/ceps/informational/cep-35.md`](contextvm-docs/src/content/docs/spec/ceps/informational/cep-35.md:60). + +In practice, this matters for: + +- public announcements +- the first direct server-to-client message +- stateless operation diff --git a/docs/gateway.md b/docs/gateway.md new file mode 100644 index 0000000..e37515a --- /dev/null +++ b/docs/gateway.md @@ -0,0 +1,129 @@ +# Gateway Guide + +[`NostrMCPGateway`](src/gateway/mod.rs:20) is the simplest way to expose an MCP server through ContextVM. + +It wraps [`NostrServerTransport`](src/transport/server/mod.rs:87), receives incoming ContextVM requests from Nostr, and lets your application send responses back using the inbound event id. + +For native Rust applications, this is usually not the primary path. Most users should build an `rmcp` server and attach [`NostrServerTransport`](src/transport/server/mod.rs:87) directly, as described in [`server-transport.md`](docs/server-transport.md). + +## When to use it + +Use the gateway when: + +- you already have MCP request handling logic +- you want a straightforward server loop +- you want optional public announcements without building directly on the transport layer + +Do not start here if you are writing a new native Rust MCP server from scratch. + +## Minimal example + +This follows the shape of [`examples/gateway.rs`](examples/gateway.rs). + +```rust +use contextvm_sdk::core::types::{ + JsonRpcError, JsonRpcErrorResponse, JsonRpcMessage, JsonRpcResponse, ServerInfo, +}; +use contextvm_sdk::gateway::{GatewayConfig, NostrMCPGateway}; +use contextvm_sdk::signer; +use contextvm_sdk::transport::server::NostrServerTransportConfig; + +#[tokio::main] +async fn main() -> contextvm_sdk::Result<()> { + let keys = signer::generate(); + + let config = GatewayConfig { + nostr_config: NostrServerTransportConfig { + relay_urls: vec!["wss://relay.damus.io".to_string()], + server_info: Some(ServerInfo { + name: Some("Echo Server".to_string()), + about: Some("A simple ContextVM server".to_string()), + ..Default::default() + }), + is_announced_server: true, + ..Default::default() + }, + }; + + let mut gateway = NostrMCPGateway::new(keys, config).await?; + let mut rx = gateway.start().await?; + gateway.announce().await?; + + while let Some(req) = rx.recv().await { + let response = match &req.message { + JsonRpcMessage::Request(request) if request.method == "tools/list" => { + JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: request.id.clone(), + result: serde_json::json!({ + "tools": [{ + "name": "echo", + "description": "Echo a message", + "inputSchema": { + "type": "object", + "properties": { + "message": { "type": "string" } + }, + "required": ["message"] + } + }] + }), + }) + } + JsonRpcMessage::Request(request) => JsonRpcMessage::ErrorResponse(JsonRpcErrorResponse { + jsonrpc: "2.0".to_string(), + id: request.id.clone(), + error: JsonRpcError { + code: -32601, + message: "Method not found".to_string(), + data: None, + }, + }), + _ => continue, + }; + + gateway.send_response(&req.event_id, response).await?; + } + + Ok(()) +} +``` + +## What the gateway gives you + +- a message channel of [`IncomingRequest`](src/transport/server/mod.rs:113) +- automatic routing of responses by original Nostr event id through [`send_response()`](src/gateway/mod.rs:57) +- optional public announcements through [`announce()`](src/gateway/mod.rs:62) + +## When not to use it + +Prefer [`server-transport.md`](docs/server-transport.md) when: + +- your application is already modeled as an `rmcp` [`ServerHandler`](rust-sdk/crates/rmcp/src/lib.rs:16) +- you want the normal `rmcp` running service lifecycle through [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) +- you want docs and examples that match the broader `rmcp` ecosystem + +## Important server config + +The main operational knobs live on [`NostrServerTransportConfig`](src/transport/server/mod.rs:36): + +- `relay_urls`: relays to connect to +- `encryption_mode`: plaintext vs encrypted session policy +- `gift_wrap_mode`: choose between persistent and ephemeral gift wraps +- `server_info`: metadata used in public announcements +- `is_announced_server`: publish public discovery events +- `allowed_public_keys`: static client allowlist +- `excluded_capabilities`: allow public access to specific methods or capability names +- `max_sessions`, `cleanup_interval`, `session_timeout`: server-side session lifecycle + +## Behavioral notes + +- responses are routed using the inbound request event id, not just the JSON-RPC id +- for announced servers, public metadata publication is part of the supported flow, verified in [`tests/transport_integration.rs`](tests/transport_integration.rs) +- authorization and allowlist bypass behavior are also exercised in [`tests/transport_integration.rs`](tests/transport_integration.rs) + +## rmcp path + +If your server already uses `rmcp`, the gateway also exposes [`serve_handler()`](src/gateway/mod.rs:88) so you can attach a handler directly without manually running the request loop. + +That said, the preferred native documentation path is still [`server-transport.md`](docs/server-transport.md), because it reflects the main architecture: `rmcp` service first, ContextVM transport second. diff --git a/docs/overview.md b/docs/overview.md new file mode 100644 index 0000000..385f62a --- /dev/null +++ b/docs/overview.md @@ -0,0 +1,103 @@ +# ContextVM Rust SDK Overview + +The Rust SDK implements ContextVM: MCP over Nostr. + +In practice, it lets you transport MCP JSON-RPC messages through Nostr events, add server discovery through announcement events, and optionally encrypt direct traffic with NIP-44 plus gift wrapping. + +## The main mental model + +For native Rust applications, ContextVM is primarily a transport for `rmcp`. + +That means the usual shape is: + +1. define an `rmcp` server or client +2. create a ContextVM Nostr transport +3. attach the transport with [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) + +This is the same pattern shown by `rmcp` examples such as [`rust-sdk/examples/servers/src/calculator_stdio.rs:20`](rust-sdk/examples/servers/src/calculator_stdio.rs:20) and [`rust-sdk/examples/clients/src/streamable_http.rs:24`](rust-sdk/examples/clients/src/streamable_http.rs:24). The only difference is that this SDK replaces stdio, HTTP, or raw sockets with Nostr transports. + +## Choose the right API + +Most users should start with one of these entry points: + +| Use case | Start with | +|---|---| +| Build a native ContextVM server | [`NostrServerTransport`](src/transport/server/mod.rs:87) + `rmcp` [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) | +| Build a native ContextVM client | [`NostrClientTransport`](src/transport/client/mod.rs:69) + `rmcp` [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) | +| Expose an already-existing MCP server on Nostr | [`NostrMCPGateway`](src/gateway/mod.rs:20) | +| Connect to a remote ContextVM server with a simpler bridge | [`NostrMCPProxy`](src/proxy/mod.rs:17) | +| Discover public servers and capabilities | [`discover_servers()`](src/discovery/mod.rs:54) and related helpers | +| Work directly with the optional bridge layer | [`serve_handler()`](src/gateway/mod.rs:88) or [`serve_client_handler()`](src/proxy/mod.rs:77) | + +## Architecture + +The crate is organized in layers: + +- [`core`](src/core/types.rs:1): protocol types, validation, serialization, errors +- [`relay`](src/relay/mod.rs): relay pool abstraction +- [`signer`](src/signer/mod.rs): key generation and signer helpers +- [`encryption`](src/encryption/mod.rs): NIP-44 and gift-wrap helpers +- [`transport`](src/transport/mod.rs:1): native ContextVM client/server transports +- [`gateway`](src/gateway/mod.rs:1): wrapper for exposing an existing MCP server flow on Nostr +- [`proxy`](src/proxy/mod.rs:1): wrapper for connecting to a remote server without the full `rmcp` client model +- [`discovery`](src/discovery/mod.rs:1): announcement and capability discovery + +The application-facing `rmcp` layer lives in [`rust-sdk/crates/rmcp/src/lib.rs`](rust-sdk/crates/rmcp/src/lib.rs). Its core extension point is [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20), with server startup in [`serve_server()`](rust-sdk/crates/rmcp/src/service/server.rs:114) and client startup in [`serve_client()`](rust-sdk/crates/rmcp/src/service/client.rs:177). + +## Protocol model + +ContextVM keeps MCP semantics intact and uses Nostr only as the transport envelope. + +- MCP payloads are represented by [`JsonRpcMessage`](src/core/types.rs:146) +- direct plaintext ContextVM traffic uses kind `25910` +- encrypted traffic uses gift-wrap kinds `1059` or `21059` +- public discovery uses kinds `11316` through `11320` +- routing is done with `p` tags and request/response correlation with `e` tags, as reflected in [`README.md`](README.md:36) + +## Core types you should know + +- [`EncryptionMode`](src/core/types.rs:17): `Optional`, `Required`, `Disabled` +- [`GiftWrapMode`](src/core/types.rs:34): `Optional`, `Ephemeral`, `Persistent` +- [`ServerInfo`](src/core/types.rs:67): announcement metadata +- [`CapabilityExclusion`](src/core/types.rs:269): allowlist bypass rules for specific methods or capabilities + +## Typical workflows + +### Build a native server + +1. generate or load keys with [`signer::generate()`](src/signer/mod.rs:13) +2. configure [`NostrServerTransportConfig`](src/transport/server/mod.rs:36) +3. create [`NostrServerTransport`](src/transport/server/mod.rs:87) +4. attach it to an `rmcp` server with [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) +5. optionally publish announcements with [`announce()`](src/transport/server/mod.rs:583) + +### Build a native client + +1. generate or load keys +2. configure [`NostrClientTransportConfig`](src/transport/client/mod.rs:33) +3. create [`NostrClientTransport`](src/transport/client/mod.rs:69) +4. attach it to an `rmcp` client with [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) + +### Bridge an existing server or client + +If you are not building a native `rmcp` service directly, use the wrapper layer: + +- [`NostrMCPGateway`](src/gateway/mod.rs:20) for server-side bridging +- [`NostrMCPProxy`](src/proxy/mod.rs:17) for client-side bridging + +### Discover servers + +1. create a [`RelayPool`](src/relay/mod.rs) +2. query [`discover_servers()`](src/discovery/mod.rs:54) +3. fetch public tools/resources/prompts with the discovery helpers in [`src/discovery/mod.rs`](src/discovery/mod.rs) + +## What is important in this implementation + +The Rust SDK already implements behavior that users should rely on: + +- stateless client initialization behavior, covered by [`tests/conformance_stateless_mode.rs`](tests/conformance_stateless_mode.rs) +- announcement publication and deletion, covered by [`tests/transport_integration.rs`](tests/transport_integration.rs) +- encryption negotiation and response mirroring, also covered by [`tests/transport_integration.rs`](tests/transport_integration.rs) +- rmcp conversion and routing flow, covered by [`src/rmcp_transport/pipeline_tests.rs`](src/rmcp_transport/pipeline_tests.rs:1) + +Use the task-oriented pages in this directory for those details. Start with [`server-transport.md`](docs/server-transport.md) and [`client-transport.md`](docs/client-transport.md) if you are building native ContextVM applications. diff --git a/docs/proxy.md b/docs/proxy.md new file mode 100644 index 0000000..54d2927 --- /dev/null +++ b/docs/proxy.md @@ -0,0 +1,104 @@ +# Proxy Guide + +[`NostrMCPProxy`](src/proxy/mod.rs:17) is the simplest way to talk to a remote ContextVM server from Rust. + +It wraps [`NostrClientTransport`](src/transport/client/mod.rs:69), gives you a receiver for responses and notifications, and handles transport startup and shutdown. + +For native Rust applications, this is usually not the primary path. Most users should build an `rmcp` client and attach [`NostrClientTransport`](src/transport/client/mod.rs:69) directly, as described in [`client-transport.md`](docs/client-transport.md). + +## When to use it + +Use the proxy when: + +- you already know the target server pubkey +- you want a lightweight request/response flow +- you do not need low-level transport hooks + +Do not start here if you are writing a new native Rust MCP client from scratch. + +## Minimal example + +This follows [`examples/proxy.rs`](examples/proxy.rs). + +```rust +use contextvm_sdk::core::types::{JsonRpcMessage, JsonRpcRequest}; +use contextvm_sdk::proxy::{NostrMCPProxy, ProxyConfig}; +use contextvm_sdk::signer; +use contextvm_sdk::transport::client::NostrClientTransportConfig; + +#[tokio::main] +async fn main() -> contextvm_sdk::Result<()> { + let keys = signer::generate(); + + let config = ProxyConfig { + nostr_config: NostrClientTransportConfig { + relay_urls: vec!["wss://relay.damus.io".to_string()], + server_pubkey: "".to_string(), + ..Default::default() + }, + }; + + let mut proxy = NostrMCPProxy::new(keys, config).await?; + let mut rx = proxy.start().await?; + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "tools/list".to_string(), + params: None, + }); + + proxy.send(&request).await?; + + if let Some(message) = rx.recv().await { + println!("{}", serde_json::to_string_pretty(&message)?); + } + + proxy.stop().await?; + Ok(()) +} +``` + +## Client config + +The main options live on [`NostrClientTransportConfig`](src/transport/client/mod.rs:33): + +- `relay_urls`: relays used for direct transport +- `server_pubkey`: target server identity in hex form +- `encryption_mode`: client encryption policy +- `gift_wrap_mode`: preferred gift-wrap kind policy +- `is_stateless`: emulate the initialize response locally +- `timeout`: pending request correlation retention + +## Stateless mode + +[`is_stateless`](src/transport/client/mod.rs:43) is a major behavior switch. + +When enabled, the client can emulate initialize handling locally instead of waiting for a network roundtrip. This behavior is tested in [`tests/conformance_stateless_mode.rs`](tests/conformance_stateless_mode.rs). + +Use it when: + +- you want faster startup for short-lived clients +- you control the server behavior and know stateless operation is acceptable + +Avoid assuming that every server workflow depends only on stateless behavior. + +## Behavioral notes + +- responses are correlated at the transport level, not just by raw receive order +- the client learns peer capabilities from discovery tags on inbound messages +- encrypted traffic is deduplicated by outer gift-wrap event id before delivery, as covered by [`tests/conformance_dedup.rs`](tests/conformance_dedup.rs) + +## When not to use it + +Prefer [`client-transport.md`](docs/client-transport.md) when: + +- your application is already modeled as an `rmcp` [`ClientHandler`](rust-sdk/crates/rmcp/src/lib.rs:14) +- you want the normal running-client workflow from [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) +- you want examples that match the rest of the `rmcp` client ecosystem + +## rmcp path + +If you are building on `rmcp`, use [`serve_client_handler()`](src/proxy/mod.rs:77) instead of manually sending and receiving raw [`JsonRpcMessage`](src/core/types.rs:146) values. + +That said, the preferred native documentation path is still [`client-transport.md`](docs/client-transport.md), because it reflects the main architecture: `rmcp` client first, ContextVM transport second. diff --git a/docs/rmcp.md b/docs/rmcp.md new file mode 100644 index 0000000..56295f3 --- /dev/null +++ b/docs/rmcp.md @@ -0,0 +1,44 @@ +# RMCP Integration Guide + +For native Rust applications, `rmcp` is the main application layer and ContextVM is the transport layer. + +The Rust SDK exposes that integration behind the `rmcp` feature, re-exported from [`src/lib.rs`](src/lib.rs:71). The bridge itself lives in [`src/rmcp_transport/mod.rs`](src/rmcp_transport/mod.rs:1). + +## Recommended mental model + +Use `rmcp` to define your server or client behavior, then attach ContextVM transports. + +That mirrors the transport-agnostic `rmcp` model exposed in [`rust-sdk/crates/rmcp/src/lib.rs`](rust-sdk/crates/rmcp/src/lib.rs), especially [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20), [`serve_server()`](rust-sdk/crates/rmcp/src/lib.rs:24), and [`serve_client()`](rust-sdk/crates/rmcp/src/lib.rs:22). + +The native entry points in this SDK are therefore: + +- [`NostrServerTransport`](src/transport/server/mod.rs:87) for servers +- [`NostrClientTransport`](src/transport/client/mod.rs:69) for clients + +Start with [`server-transport.md`](docs/server-transport.md) and [`client-transport.md`](docs/client-transport.md) for that workflow. + +## Server-side integration + +Use [`serve_handler()`](src/gateway/mod.rs:88) to serve an `rmcp` server handler directly over ContextVM. + +## Client-side integration + +Use [`serve_client_handler()`](src/proxy/mod.rs:77) to connect an `rmcp` client handler through the ContextVM client worker. + +## Why this still exists as a separate page + +The base SDK does not require `rmcp`. The core message model is represented by [`JsonRpcMessage`](src/core/types.rs:146) and related types in [`src/core/types.rs`](src/core/types.rs). + +That separation keeps the transport usable as a lower-level protocol layer, but most application authors will want the `rmcp` path. + +The wrapper APIs in [`src/gateway/mod.rs`](src/gateway/mod.rs:1) and [`src/proxy/mod.rs`](src/proxy/mod.rs:1) are convenience layers on top of this broader model, not the primary architecture for native apps. + +## Behavioral confidence + +The conversion pipeline is covered by [`src/rmcp_transport/pipeline_tests.rs`](src/rmcp_transport/pipeline_tests.rs:1), which tests: + +- JSON-RPC parsing into internal message types +- internal-to-rmcp conversion +- rmcp-to-internal conversion +- request id preservation through the bridge +- event-id based routing assumptions used by the server worker diff --git a/docs/server-transport.md b/docs/server-transport.md new file mode 100644 index 0000000..e23aae4 --- /dev/null +++ b/docs/server-transport.md @@ -0,0 +1,134 @@ +# Native Server Guide + +Use this path when you are building a native ContextVM server in Rust. + +The recommended architecture is: + +- define an `rmcp` server handler +- create a [`NostrServerTransport`](src/transport/server/mod.rs:87) +- attach the transport to the handler with `rmcp`'s [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) + +This is the same model used by `rmcp` examples such as [`rust-sdk/examples/servers/src/calculator_stdio.rs`](rust-sdk/examples/servers/src/calculator_stdio.rs), except the transport is Nostr instead of stdio. + +## The high-level shape + +In `rmcp`, a native server is normally started with `YourHandler.serve(transport)`, as shown in [`rust-sdk/examples/servers/src/calculator_stdio.rs:20`](rust-sdk/examples/servers/src/calculator_stdio.rs:20). + +For ContextVM, the transport becomes [`NostrServerTransport`](src/transport/server/mod.rs:87), then you convert it into an rmcp-compatible adapter with [`into_rmcp_transport()`](src/rmcp_transport/transport.rs:16). + +## Example + +```rust +use contextvm_sdk::transport::server::{ + NostrServerTransport, NostrServerTransportConfig, +}; +use contextvm_sdk::{EncryptionMode, GiftWrapMode}; +use rmcp::{ + ServerHandler, ServiceExt, + handler::server::wrapper::Parameters, + model::*, + schemars, tool, tool_handler, tool_router, +}; + +#[derive(Clone)] +struct DemoServer { + tool_router: rmcp::handler::server::router::tool::ToolRouter, +} + +impl DemoServer { + fn new() -> Self { + Self { + tool_router: Self::tool_router(), + } + } +} + +#[derive(Debug, serde::Deserialize, schemars::JsonSchema)] +struct EchoParams { + message: String, +} + +#[tool_router] +impl DemoServer { + #[tool(description = "Echo a message back unchanged")] + async fn echo( + &self, + Parameters(EchoParams { message }): Parameters, + ) -> Result { + Ok(CallToolResult::success(vec![Content::text(message)])) + } +} + +#[tool_handler] +impl ServerHandler for DemoServer { + fn get_info(&self) -> ServerInfo { + ServerInfo { + protocol_version: ProtocolVersion::LATEST, + capabilities: ServerCapabilities::builder().enable_tools().build(), + server_info: Implementation::new("demo-server", "0.1.0"), + instructions: Some("Try the echo tool".to_string()), + } + } +} + +#[tokio::main] +async fn main() -> anyhow::Result<()> { + let signer = contextvm_sdk::signer::generate(); + + let transport = NostrServerTransport::new( + signer, + NostrServerTransportConfig { + relay_urls: vec!["wss://relay.primal.net".to_string()], + is_announced_server: true, + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + ..Default::default() + }, + ) + .await?; + + let service = DemoServer::new() + .serve(transport.into_rmcp_transport()) + .await?; + service.waiting().await?; + Ok(()) +} +``` + +This follows the same service pattern used in [`examples/rmcp_integration_test.rs:247`](examples/rmcp_integration_test.rs:247), but replaces the local duplex transport with [`NostrServerTransport`](src/transport/server/mod.rs:87) and its direct rmcp adapter [`NostrServerTransport::into_rmcp_transport()`](src/rmcp_transport/transport.rs:16). + +## What the transport adds + +[`NostrServerTransport`](src/transport/server/mod.rs:87) is not just a byte stream adapter. It adds ContextVM-specific behavior on top of `rmcp` server semantics: + +- Nostr relay connectivity via [`NostrServerTransport::new()`](src/transport/server/mod.rs:126) +- public announcements via [`announce()`](src/transport/server/mod.rs:583) +- publication of tools, resources, prompts, and resource templates via [`publish_tools()`](src/transport/server/mod.rs:638) and related methods +- client authorization via `allowed_public_keys` in [`NostrServerTransportConfig`](src/transport/server/mod.rs:36) +- capability exclusions via [`CapabilityExclusion`](src/core/types.rs:269) +- encryption negotiation and response mirroring via [`send_response()`](src/transport/server/mod.rs:350) +- session management and request routing inside [`event_loop()`](src/transport/server/mod.rs:838) + +## Configuration fields that matter first + +Start with these fields in [`NostrServerTransportConfig`](src/transport/server/mod.rs:36): + +- `relay_urls`: relays the server will publish to and listen on +- `is_announced_server`: whether the server should participate in public discovery +- `encryption_mode`: plaintext vs encrypted policy +- `gift_wrap_mode`: persistent vs ephemeral wrapping policy +- `allowed_public_keys`: allowlist for private or restricted servers +- `excluded_capabilities`: allow specific methods without fully opening the server + +## When to use this instead of the gateway + +Use this page's approach when you are writing a new Rust MCP server. + +Use [`gateway.md`](docs/gateway.md) when you already have a request loop or existing local MCP service abstraction and want a thinner bridge. + +## Behavioral notes + +- The `rmcp` server handshake begins through [`serve_server()`](rust-sdk/crates/rmcp/src/service/server.rs:114). +- `rmcp` accepts pre-init ping and enters the main loop immediately after sending initialize result, as shown in [`rust-sdk/crates/rmcp/src/service/server.rs:170`](rust-sdk/crates/rmcp/src/service/server.rs:170) and [`rust-sdk/crates/rmcp/src/service/server.rs:250`](rust-sdk/crates/rmcp/src/service/server.rs:250). +- ContextVM response routing depends on request event ids and is tested in [`src/rmcp_transport/pipeline_tests.rs:213`](src/rmcp_transport/pipeline_tests.rs:213). +- Encryption mirroring and announcement behavior are covered by [`tests/transport_integration.rs`](tests/transport_integration.rs). diff --git a/docs/transports.md b/docs/transports.md new file mode 100644 index 0000000..8c6cd37 --- /dev/null +++ b/docs/transports.md @@ -0,0 +1,129 @@ +# Transport Guide + +Use this page when you want to understand the transport layer itself. + +If you are building a normal native server or client, start with [`server-transport.md`](docs/server-transport.md) or [`client-transport.md`](docs/client-transport.md) first. + +- [`NostrClientTransport`](src/transport/client/mod.rs:69): client-side direct transport +- [`NostrServerTransport`](src/transport/server/mod.rs:87): server-side direct transport + +## Why use the transport layer directly + +Use transports directly when you need to: + +- integrate with your own request loop +- control announcement timing yourself +- tune authorization and session behavior +- embed the transport in higher-level abstractions + +## Low-level client transport example + +```rust +use contextvm_sdk::core::types::{JsonRpcMessage, JsonRpcRequest}; +use contextvm_sdk::signer; +use contextvm_sdk::transport::client::{ + NostrClientTransport, NostrClientTransportConfig, +}; + +#[tokio::main] +async fn main() -> contextvm_sdk::Result<()> { + let keys = signer::generate(); + let mut transport = NostrClientTransport::new( + keys, + NostrClientTransportConfig { + relay_urls: vec!["wss://relay.damus.io".to_string()], + server_pubkey: "".to_string(), + ..Default::default() + }, + ) + .await?; + + transport.start().await?; + let mut rx = transport.take_message_receiver().expect("receiver available"); + + transport + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "tools/list".to_string(), + params: None, + })) + .await?; + + if let Some(message) = rx.recv().await { + println!("received: {:?}", message); + } + + transport.close().await?; + Ok(()) +} +``` + +## Low-level server transport example + +```rust +use contextvm_sdk::core::types::{JsonRpcMessage, JsonRpcResponse}; +use contextvm_sdk::signer; +use contextvm_sdk::transport::server::{ + NostrServerTransport, NostrServerTransportConfig, +}; + +#[tokio::main] +async fn main() -> contextvm_sdk::Result<()> { + let keys = signer::generate(); + let mut transport = NostrServerTransport::new( + keys, + NostrServerTransportConfig { + is_announced_server: true, + ..Default::default() + }, + ) + .await?; + + transport.start().await?; + let mut rx = transport.take_message_receiver().expect("receiver available"); + + while let Some(req) = rx.recv().await { + if let Some(id) = req.message.id() { + transport + .send_response( + &req.event_id, + JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: id.clone(), + result: serde_json::json!({"ok": true}), + }), + ) + .await?; + } + } + + Ok(()) +} +``` + +## Server-side semantics to understand + +The server transport does more than relay bytes. + +It manages: + +- multi-client session state +- request route storage +- authorization via `allowed_public_keys` +- allowlist bypasses via [`CapabilityExclusion`](src/core/types.rs:269) +- announcement publication +- encryption negotiation and response mirroring + +Those behaviors are visible in the fields of [`NostrServerTransport`](src/transport/server/mod.rs:87) and are exercised heavily in [`tests/transport_integration.rs`](tests/transport_integration.rs). + +## What the server receives + +Incoming traffic is delivered as [`IncomingRequest`](src/transport/server/mod.rs:113), which includes: + +- the parsed [`JsonRpcMessage`](src/core/types.rs:146) +- the client pubkey +- the original Nostr request event id +- whether the incoming message was encrypted + +That extra metadata is what allows correct response routing and encryption mirroring. diff --git a/sdk b/sdk index 5f773a2..7a0c5c3 160000 --- a/sdk +++ b/sdk @@ -1 +1 @@ -Subproject commit 5f773a20d9ea4b0a5f06d1b860d3d3da7509699f +Subproject commit 7a0c5c398c8ffcc6b07ddb181c67a29b77dc3cb4 From 6469c920096765f3978229ba06e66bc808539aa6 Mon Sep 17 00:00:00 2001 From: Harsh Date: Wed, 6 May 2026 21:58:18 +0530 Subject: [PATCH 065/116] fix: pre-release blockers - non_exhaustive, Lagged handling, zero-capacity clamp, rmcp feature gate --- Cargo.toml | 4 + README.md | 36 +- examples/gateway.rs | 24 +- examples/proxy.rs | 16 +- examples/rmcp_integration_test.rs | 36 +- src/core/types.rs | 29 + src/gateway/mod.rs | 8 + src/proxy/mod.rs | 8 + src/transport/client/correlation_store.rs | 2 +- src/transport/client/mod.rs | 49 +- src/transport/server/correlation_store.rs | 2 +- src/transport/server/mod.rs | 75 ++- src/transport/server/session_store.rs | 2 +- tests/conformance_stateless_mode.rs | 16 +- tests/transport_integration.rs | 638 ++++++++-------------- 15 files changed, 444 insertions(+), 501 deletions(-) diff --git a/Cargo.toml b/Cargo.toml index 9ed83c7..fe6c0ee 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -39,6 +39,10 @@ tokio-util = { version = "0.7", features = ["rt"] } default = ["rmcp"] rmcp = ["dep:rmcp"] +[[example]] +name = "rmcp_integration_test" +required-features = ["rmcp"] + [dev-dependencies] tokio-test = "0.4" anyhow = "1" diff --git a/README.md b/README.md index dfe1d66..ffdb4e5 100644 --- a/README.md +++ b/README.md @@ -77,19 +77,16 @@ use contextvm_sdk::signer; async fn main() -> contextvm_sdk::Result<()> { let keys = signer::generate(); - let config = GatewayConfig { - nostr_config: NostrServerTransportConfig { - relay_urls: vec!["wss://relay.damus.io".into()], - encryption_mode: EncryptionMode::Optional, - server_info: Some(ServerInfo { - name: Some("My MCP Server".into()), - about: Some("Tools via Nostr".into()), - ..Default::default() - }), - is_announced_server: true, - ..Default::default() - }, - }; + let config = GatewayConfig::new( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Optional) + .with_server_info( + ServerInfo::default() + .with_name("My MCP Server") + .with_about("Tools via Nostr"), + ) + .with_announced_server(true), + ); let mut gateway = NostrMCPGateway::new(keys, config).await?; let mut requests = gateway.start().await?; @@ -116,14 +113,11 @@ use contextvm_sdk::signer; async fn main() -> contextvm_sdk::Result<()> { let keys = signer::generate(); - let config = ProxyConfig { - nostr_config: NostrClientTransportConfig { - relay_urls: vec!["wss://relay.damus.io".into()], - server_pubkey: "abc123...server_hex_pubkey".into(), - encryption_mode: EncryptionMode::Optional, - ..Default::default() - }, - }; + let config = ProxyConfig::new( + NostrClientTransportConfig::default() + .with_server_pubkey("abc123...server_hex_pubkey") + .with_encryption_mode(EncryptionMode::Optional), + ); let mut proxy = NostrMCPProxy::new(keys, config).await?; let mut responses = proxy.start().await?; diff --git a/examples/gateway.rs b/examples/gateway.rs index 41543d1..3a3bef9 100644 --- a/examples/gateway.rs +++ b/examples/gateway.rs @@ -37,19 +37,17 @@ async fn main() -> contextvm_sdk::Result<()> { println!("Server pubkey: {}", keys.public_key().to_hex()); // Configure the gateway - let config = GatewayConfig { - nostr_config: NostrServerTransportConfig { - relay_urls: vec!["wss://relay.damus.io".to_string()], - server_info: Some(ServerInfo { - name: Some("Echo Server".to_string()), - about: Some("A simple echo tool exposed via ContextVM".to_string()), - ..Default::default() - }), - is_announced_server: true, - log_file_path, - ..Default::default() - }, - }; + let mut nostr_config = NostrServerTransportConfig::default() + .with_server_info( + ServerInfo::default() + .with_name("Echo Server") + .with_about("A simple echo tool exposed via ContextVM"), + ) + .with_announced_server(true); + if let Some(path) = log_file_path { + nostr_config = nostr_config.with_log_file_path(path); + } + let config = GatewayConfig::new(nostr_config); let mut gateway = NostrMCPGateway::new(keys, config).await?; let mut rx = gateway.start().await?; diff --git a/examples/proxy.rs b/examples/proxy.rs index da5a63e..9f9e1c0 100644 --- a/examples/proxy.rs +++ b/examples/proxy.rs @@ -41,15 +41,13 @@ async fn main() -> contextvm_sdk::Result<()> { let keys = signer::generate(); println!("Client pubkey: {}", keys.public_key().to_hex()); - let config = ProxyConfig { - nostr_config: NostrClientTransportConfig { - relay_urls: vec!["wss://relay.damus.io".to_string()], - server_pubkey: server_pubkey_hex, - encryption_mode: EncryptionMode::Optional, - log_file_path, - ..Default::default() - }, - }; + let mut nostr_config = NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey_hex) + .with_encryption_mode(EncryptionMode::Optional); + if let Some(path) = log_file_path { + nostr_config = nostr_config.with_log_file_path(path); + } + let config = ProxyConfig::new(nostr_config); let mut proxy = NostrMCPProxy::new(keys, config).await?; let mut rx = proxy.start().await?; diff --git a/examples/rmcp_integration_test.rs b/examples/rmcp_integration_test.rs index c0bedc6..9d82519 100644 --- a/examples/rmcp_integration_test.rs +++ b/examples/rmcp_integration_test.rs @@ -571,30 +571,24 @@ async fn run_relay_rmcp_case(relay_url: &str) -> Result<()> { } fn server_config(relay_url: &str) -> GatewayConfig { - GatewayConfig { - nostr_config: NostrServerTransportConfig { - relay_urls: vec![relay_url.to_string()], - encryption_mode: EncryptionMode::Optional, - server_info: Some(CtxServerInfo { - name: Some("rmcp-matrix-server".to_string()), - about: Some("rmcp matrix coverage server".to_string()), - ..Default::default() - }), - is_announced_server: false, - ..Default::default() - }, - } + let nostr_config = NostrServerTransportConfig::default() + .with_relay_urls(vec![relay_url.to_string()]) + .with_encryption_mode(EncryptionMode::Optional) + .with_server_info( + CtxServerInfo::default() + .with_name("rmcp-matrix-server") + .with_about("rmcp matrix coverage server"), + ) + .with_announced_server(false); + GatewayConfig::new(nostr_config) } fn client_config(relay_url: &str, server_pubkey: String) -> ProxyConfig { - ProxyConfig { - nostr_config: NostrClientTransportConfig { - relay_urls: vec![relay_url.to_string()], - server_pubkey, - encryption_mode: EncryptionMode::Optional, - ..Default::default() - }, - } + let nostr_config = NostrClientTransportConfig::default() + .with_relay_urls(vec![relay_url.to_string()]) + .with_server_pubkey(server_pubkey) + .with_encryption_mode(EncryptionMode::Optional); + ProxyConfig::new(nostr_config) } async fn send_legacy_request_and_wait( diff --git a/src/core/types.rs b/src/core/types.rs index d66311e..d3d0064 100644 --- a/src/core/types.rs +++ b/src/core/types.rs @@ -64,6 +64,7 @@ impl GiftWrapMode { /// Published as the content of a replaceable Nostr event so that clients /// can discover the server's identity and metadata. #[derive(Debug, Clone, Default, Serialize, Deserialize)] +#[non_exhaustive] pub struct ServerInfo { /// Human-readable server name. #[serde(skip_serializing_if = "Option::is_none")] @@ -82,6 +83,34 @@ pub struct ServerInfo { pub about: Option, } +impl ServerInfo { + /// Set the server name. + pub fn with_name(mut self, name: impl Into) -> Self { + self.name = Some(name.into()); + self + } + /// Set the server version. + pub fn with_version(mut self, version: impl Into) -> Self { + self.version = Some(version.into()); + self + } + /// Set the server picture URL. + pub fn with_picture(mut self, picture: impl Into) -> Self { + self.picture = Some(picture.into()); + self + } + /// Set the server website URL. + pub fn with_website(mut self, website: impl Into) -> Self { + self.website = Some(website.into()); + self + } + /// Set the server description. + pub fn with_about(mut self, about: impl Into) -> Self { + self.about = Some(about.into()); + self + } +} + // ── Client session ────────────────────────────────────────────────── /// Client session state tracked by the server transport. diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index b5ae17d..97a6457 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -8,11 +8,19 @@ use crate::core::types::JsonRpcMessage; use crate::transport::server::{IncomingRequest, NostrServerTransport, NostrServerTransportConfig}; /// Configuration for the gateway. +#[non_exhaustive] pub struct GatewayConfig { /// Nostr server transport configuration. pub nostr_config: NostrServerTransportConfig, } +impl GatewayConfig { + /// Create a new gateway configuration. + pub fn new(nostr_config: NostrServerTransportConfig) -> Self { + Self { nostr_config } + } +} + /// Gateway that bridges a local MCP server to Nostr. /// /// The gateway listens for incoming MCP requests via Nostr, forwards them diff --git a/src/proxy/mod.rs b/src/proxy/mod.rs index 1322fa0..e26f2f9 100644 --- a/src/proxy/mod.rs +++ b/src/proxy/mod.rs @@ -8,11 +8,19 @@ use crate::core::types::JsonRpcMessage; use crate::transport::client::{NostrClientTransport, NostrClientTransportConfig}; /// Configuration for the proxy. +#[non_exhaustive] pub struct ProxyConfig { /// Nostr client transport configuration. pub nostr_config: NostrClientTransportConfig, } +impl ProxyConfig { + /// Create a new proxy configuration. + pub fn new(nostr_config: NostrClientTransportConfig) -> Self { + Self { nostr_config } + } +} + /// Proxy that connects to a remote MCP server via Nostr. pub struct NostrMCPProxy { transport: NostrClientTransport, diff --git a/src/transport/client/correlation_store.rs b/src/transport/client/correlation_store.rs index 537c1ae..0fbcd9f 100644 --- a/src/transport/client/correlation_store.rs +++ b/src/transport/client/correlation_store.rs @@ -45,7 +45,7 @@ impl ClientCorrelationStore { pub fn with_max_pending(max_pending: usize) -> Self { Self { pending_requests: Arc::new(RwLock::new(LruCache::new( - NonZeroUsize::new(max_pending).expect("max_pending must be non-zero"), + NonZeroUsize::new(max_pending).unwrap_or(NonZeroUsize::new(1).unwrap()), ))), } } diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index 53f494b..4d7ff89 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -31,6 +31,7 @@ use crate::util::tracing_setup; const LOG_TARGET: &str = "contextvm_sdk::transport::client"; /// Configuration for the client transport. +#[non_exhaustive] pub struct NostrClientTransportConfig { /// Relay URLs to connect to. pub relay_urls: Vec, @@ -66,6 +67,44 @@ impl Default for NostrClientTransportConfig { } } +impl NostrClientTransportConfig { + /// Set the server's public key (hex). + pub fn with_server_pubkey(mut self, pubkey: impl Into) -> Self { + self.server_pubkey = pubkey.into(); + self + } + /// Set the encryption mode. + pub fn with_encryption_mode(mut self, mode: EncryptionMode) -> Self { + self.encryption_mode = mode; + self + } + /// Set the gift-wrap mode (CEP-19). + pub fn with_gift_wrap_mode(mut self, mode: GiftWrapMode) -> Self { + self.gift_wrap_mode = mode; + self + } + /// Enable or disable stateless mode. + pub fn with_stateless(mut self, stateless: bool) -> Self { + self.is_stateless = stateless; + self + } + /// Set the relay URLs to connect to. + pub fn with_relay_urls(mut self, urls: Vec) -> Self { + self.relay_urls = urls; + self + } + /// Set the correlation-retention TTL. + pub fn with_timeout(mut self, timeout: Duration) -> Self { + self.timeout = timeout; + self + } + /// Set the log file path. + pub fn with_log_file_path(mut self, path: impl Into) -> Self { + self.log_file_path = Some(path.into()); + self + } +} + /// Client-side Nostr transport for sending MCP requests and receiving responses. pub struct NostrClientTransport { base: BaseTransport, @@ -442,7 +481,15 @@ impl NostrClientTransport { result = notifications.recv() => { let notification = match result { Ok(n) => n, - Err(_) => break, + Err(tokio::sync::broadcast::error::RecvError::Lagged(n)) => { + tracing::warn!( + target: LOG_TARGET, + skipped = n, + "Relay broadcast lagged, skipping missed events" + ); + continue; + } + Err(tokio::sync::broadcast::error::RecvError::Closed) => break, }; Self::handle_notification( ¬ification, diff --git a/src/transport/server/correlation_store.rs b/src/transport/server/correlation_store.rs index 80353a8..c25404e 100644 --- a/src/transport/server/correlation_store.rs +++ b/src/transport/server/correlation_store.rs @@ -39,7 +39,7 @@ struct Inner { impl Inner { fn new(max_routes: usize) -> Self { let routes = - LruCache::new(NonZeroUsize::new(max_routes).expect("max_routes must be non-zero")); + LruCache::new(NonZeroUsize::new(max_routes).unwrap_or(NonZeroUsize::new(1).unwrap())); Self { routes, progress_token_to_event: HashMap::new(), diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index a222a3e..0082be1 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -34,6 +34,7 @@ use crate::util::tracing_setup; const LOG_TARGET: &str = "contextvm_sdk::transport::server"; /// Configuration for the server transport. +#[non_exhaustive] pub struct NostrServerTransportConfig { /// Relay URLs to connect to. pub relay_urls: Vec, @@ -113,8 +114,72 @@ pub struct NostrServerTransport { task_handles: Vec>, } +impl NostrServerTransportConfig { + /// Set the encryption mode. + pub fn with_encryption_mode(mut self, mode: EncryptionMode) -> Self { + self.encryption_mode = mode; + self + } + /// Set the gift-wrap mode (CEP-19). + pub fn with_gift_wrap_mode(mut self, mode: GiftWrapMode) -> Self { + self.gift_wrap_mode = mode; + self + } + /// Set server information for announcements. + pub fn with_server_info(mut self, info: ServerInfo) -> Self { + self.server_info = Some(info); + self + } + /// Enable or disable public announcement publishing (CEP-6). + pub fn with_announced_server(mut self, announced: bool) -> Self { + self.is_announced_server = announced; + self + } + /// Set the allowed client public keys (hex). Empty = allow all. + pub fn with_allowed_public_keys(mut self, keys: Vec) -> Self { + self.allowed_public_keys = keys; + self + } + /// Set capabilities excluded from pubkey whitelisting. + pub fn with_excluded_capabilities(mut self, caps: Vec) -> Self { + self.excluded_capabilities = caps; + self + } + /// Set the maximum number of concurrent client sessions. + pub fn with_max_sessions(mut self, max: usize) -> Self { + self.max_sessions = max; + self + } + /// Set the relay URLs to connect to. + pub fn with_relay_urls(mut self, urls: Vec) -> Self { + self.relay_urls = urls; + self + } + /// Set the session cleanup interval. + pub fn with_cleanup_interval(mut self, interval: Duration) -> Self { + self.cleanup_interval = interval; + self + } + /// Set the session timeout. + pub fn with_session_timeout(mut self, timeout: Duration) -> Self { + self.session_timeout = timeout; + self + } + /// Set the correlation-retention TTL for event routes. + pub fn with_request_timeout(mut self, timeout: Duration) -> Self { + self.request_timeout = timeout; + self + } + /// Set the log file path. + pub fn with_log_file_path(mut self, path: impl Into) -> Self { + self.log_file_path = Some(path.into()); + self + } +} + /// An incoming MCP request with metadata for routing the response. #[derive(Debug)] +#[non_exhaustive] pub struct IncomingRequest { /// The parsed MCP message. pub message: JsonRpcMessage, @@ -899,7 +964,15 @@ impl NostrServerTransport { result = notifications.recv() => { match result { Ok(n) => n, - Err(_) => break, + Err(tokio::sync::broadcast::error::RecvError::Lagged(n)) => { + tracing::warn!( + target: LOG_TARGET, + skipped = n, + "Relay broadcast lagged, skipping missed events" + ); + continue; + } + Err(tokio::sync::broadcast::error::RecvError::Closed) => break, } } }; diff --git a/src/transport/server/session_store.rs b/src/transport/server/session_store.rs index 1415a90..a37d53a 100644 --- a/src/transport/server/session_store.rs +++ b/src/transport/server/session_store.rs @@ -53,7 +53,7 @@ impl SessionStore { pub fn with_capacity(max_sessions: usize) -> Self { Self { sessions: Arc::new(RwLock::new(LruCache::new( - NonZeroUsize::new(max_sessions).expect("max_sessions must be > 0"), + NonZeroUsize::new(max_sessions).unwrap_or(NonZeroUsize::new(1).unwrap()), ))), on_evicted: None, } diff --git a/tests/conformance_stateless_mode.rs b/tests/conformance_stateless_mode.rs index 9999e23..0e30a65 100644 --- a/tests/conformance_stateless_mode.rs +++ b/tests/conformance_stateless_mode.rs @@ -17,15 +17,13 @@ async fn make_stateless_transport() -> ( let server_keys = signer::generate(); let client_keys = signer::generate(); - let config = NostrClientTransportConfig { - relay_urls: Vec::new(), - server_pubkey: server_keys.public_key().to_hex(), - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Optional, - is_stateless: true, - timeout: Duration::from_secs(1), - log_file_path: None, - }; + let config = NostrClientTransportConfig::default() + .with_relay_urls(Vec::new()) + .with_server_pubkey(server_keys.public_key().to_hex()) + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional) + .with_stateless(true) + .with_timeout(Duration::from_secs(1)); let mut transport = NostrClientTransport::new(client_keys, config) .await diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index 5bddfad..7bcaf1a 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -136,21 +136,16 @@ async fn full_initialization_handshake() { let server_pubkey = server_pool.mock_public_key(); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), as_pool(server_pool), ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -227,15 +222,10 @@ async fn server_announcement_publishing() { let pool = Arc::new(MockRelayPool::new()); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - is_announced_server: true, - server_info: Some(ServerInfo { - name: Some("Phase3-Test-Server".to_string()), - ..Default::default() - }), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_server_info(ServerInfo::default().with_name("Phase3-Test-Server".to_string())) + .with_announced_server(true), Arc::clone(&pool) as Arc, ) .await @@ -273,10 +263,7 @@ async fn encryption_mode_optional_accepts_plaintext() { // Server uses Optional — should accept both encrypted and plaintext. let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Optional, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Optional), as_pool(server_pool), ) .await @@ -289,11 +276,9 @@ async fn encryption_mode_optional_accepts_plaintext() { // Client uses Disabled — sends plaintext kind 25910. let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -337,11 +322,9 @@ async fn auth_allowlist_blocks_disallowed_pubkey() { // Server allows only `allowed_keys` — client_keys is NOT allowed. let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - allowed_public_keys: vec![allowed_keys.public_key().to_hex()], - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_allowed_public_keys(vec![allowed_keys.public_key().to_hex()]), as_pool(server_pool), ) .await @@ -353,11 +336,9 @@ async fn auth_allowlist_blocks_disallowed_pubkey() { server.start().await.expect("server start"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -392,10 +373,7 @@ async fn encryption_mode_required_drops_plaintext() { // Server requires encryption — plaintext must be dropped. let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Required, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Required), as_pool(server_pool), ) .await @@ -408,11 +386,9 @@ async fn encryption_mode_required_drops_plaintext() { // Client sends plaintext (Disabled mode). let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -446,21 +422,16 @@ async fn encrypted_gift_wrap_roundtrip() { let server_pool = Arc::new(server_pool); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Required, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Required), Arc::clone(&server_pool) as Arc, ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Required, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Required), as_pool(client_pool), ) .await @@ -534,21 +505,16 @@ async fn gift_wrap_dedup_skips_duplicate_delivery() { let server_pool = Arc::new(server_pool); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Required, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Required), Arc::clone(&server_pool) as Arc, ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Required, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Required), as_pool(client_pool), ) .await @@ -608,21 +574,16 @@ async fn correlated_notification_has_e_tag() { let server_pool = Arc::new(server_pool); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), Arc::clone(&server_pool) as Arc, ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -707,21 +668,16 @@ async fn encryption_required_client_optional_server() { let server_pubkey = server_pool.mock_public_key(); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Optional, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Optional), as_pool(server_pool), ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Required, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Required), as_pool(client_pool), ) .await @@ -769,21 +725,16 @@ async fn encryption_optional_both_sides_encrypted_path() { let server_pubkey = server_pool.mock_public_key(); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Optional, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Optional), as_pool(server_pool), ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Optional, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Optional), as_pool(client_pool), ) .await @@ -824,15 +775,10 @@ async fn announce_includes_encryption_tags() { let pool = Arc::new(MockRelayPool::new()); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - is_announced_server: true, - server_info: Some(ServerInfo { - name: Some("Encrypted-Server".to_string()), - ..Default::default() - }), - encryption_mode: EncryptionMode::Required, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Required) + .with_server_info(ServerInfo::default().with_name("Encrypted-Server".to_string())) + .with_announced_server(true), Arc::clone(&pool) as Arc, ) .await @@ -873,18 +819,16 @@ async fn announce_includes_server_metadata_tags() { let pool = Arc::new(MockRelayPool::new()); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - is_announced_server: true, - server_info: Some(ServerInfo { - name: Some("Meta-Server".to_string()), - about: Some("A test server".to_string()), - website: Some("https://example.com".to_string()), - picture: Some("https://example.com/pic.png".to_string()), - ..Default::default() - }), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_server_info( + ServerInfo::default() + .with_name("Meta-Server".to_string()) + .with_about("A test server".to_string()) + .with_website("https://example.com".to_string()) + .with_picture("https://example.com/pic.png".to_string()), + ) + .with_announced_server(true), Arc::clone(&pool) as Arc, ) .await @@ -935,15 +879,10 @@ async fn publish_tools_produces_correct_kind() { let pool = Arc::new(MockRelayPool::new()); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - is_announced_server: true, - server_info: Some(ServerInfo { - name: Some("Tools-Server".to_string()), - ..Default::default() - }), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_server_info(ServerInfo::default().with_name("Tools-Server".to_string())) + .with_announced_server(true), Arc::clone(&pool) as Arc, ) .await @@ -984,10 +923,7 @@ async fn broadcast_notification_reaches_initialized_client() { let server_pk = s_pool.mock_public_key(); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), as_pool(s_pool), ) .await @@ -999,11 +935,9 @@ async fn broadcast_notification_reaches_initialized_client() { server.start().await.expect("server start"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pk.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pk.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(c1_pool), ) .await @@ -1106,21 +1040,16 @@ async fn uncorrelated_notification_passes_through() { let server_pubkey = server_pool.mock_public_key(); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), as_pool(server_pool), ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -1204,21 +1133,16 @@ async fn correlated_notification_unknown_e_tag_is_dropped() { let server_pubkey = server_pool.mock_public_key(); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), as_pool(server_pool), ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -1299,11 +1223,9 @@ async fn auth_allowed_pubkey_receives_response() { let client_pubkey = client_pool.mock_public_key(); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - allowed_public_keys: vec![client_pubkey.to_hex()], - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_allowed_public_keys(vec![client_pubkey.to_hex()]), as_pool(server_pool), ) .await @@ -1315,11 +1237,9 @@ async fn auth_allowed_pubkey_receives_response() { server.start().await.expect("server start"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -1378,15 +1298,13 @@ async fn excluded_capability_bypasses_auth() { let server_pubkey = server_pool.mock_public_key(); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - allowed_public_keys: vec![allowed_keys.public_key().to_hex()], - excluded_capabilities: vec![CapabilityExclusion { + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_allowed_public_keys(vec![allowed_keys.public_key().to_hex()]) + .with_excluded_capabilities(vec![CapabilityExclusion { method: "tools/list".to_string(), name: None, - }], - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + }]), as_pool(server_pool), ) .await @@ -1398,11 +1316,9 @@ async fn excluded_capability_bypasses_auth() { server.start().await.expect("server start"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -1440,10 +1356,7 @@ async fn publish_resources_produces_correct_kind() { let pool = Arc::new(MockRelayPool::new()); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), Arc::clone(&pool) as Arc, ) .await @@ -1483,10 +1396,7 @@ async fn publish_prompts_produces_correct_kind() { let pool = Arc::new(MockRelayPool::new()); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), Arc::clone(&pool) as Arc, ) .await @@ -1525,10 +1435,7 @@ async fn publish_resource_templates_produces_correct_kind() { let pool = Arc::new(MockRelayPool::new()); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), Arc::clone(&pool) as Arc, ) .await @@ -1568,10 +1475,7 @@ async fn publish_tools_empty_list() { let pool = Arc::new(MockRelayPool::new()); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), Arc::clone(&pool) as Arc, ) .await @@ -1602,15 +1506,10 @@ async fn delete_announcements_k_tags_match_kinds() { let pool = Arc::new(MockRelayPool::new()); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - is_announced_server: true, - server_info: Some(ServerInfo { - name: Some("KTag-Server".to_string()), - ..Default::default() - }), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_server_info(ServerInfo::default().with_name("KTag-Server".to_string())) + .with_announced_server(true), Arc::clone(&pool) as Arc, ) .await @@ -1665,10 +1564,7 @@ async fn encryption_disabled_server_rejects_gift_wrap() { // Server has encryption disabled — must reject gift-wrap events. let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), as_pool(server_pool), ) .await @@ -1681,11 +1577,9 @@ async fn encryption_disabled_server_rejects_gift_wrap() { // Client requires encryption — sends gift-wrap (kind 1059). let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Required, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Required), as_pool(client_pool), ) .await @@ -1720,21 +1614,16 @@ async fn response_mirrors_client_encryption_format() { let server_pool = Arc::new(server_pool); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Optional, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Optional), Arc::clone(&server_pool) as Arc, ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -1807,21 +1696,16 @@ async fn response_mirrors_client_encryption_format() { let server_pool = Arc::new(server_pool); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Optional, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Optional), Arc::clone(&server_pool) as Arc, ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Required, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Required), as_pool(client_pool), ) .await @@ -1908,21 +1792,16 @@ async fn send_response_is_one_shot_under_concurrency() { )); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), delayed_server_pool, ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -2010,21 +1889,16 @@ async fn send_response_publish_failure_allows_one_successful_retry() { )); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), Arc::clone(&failing_server_pool) as Arc, ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -2132,12 +2006,10 @@ async fn announced_server_sends_unauthorized_error_response() { // Announced server with an allowlist that does NOT include the client. let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - allowed_public_keys: vec![allowed_keys.public_key().to_hex()], - is_announced_server: true, - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_announced_server(true) + .with_allowed_public_keys(vec![allowed_keys.public_key().to_hex()]), as_pool(server_pool), ) .await @@ -2149,11 +2021,9 @@ async fn announced_server_sends_unauthorized_error_response() { server.start().await.expect("server start"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -2212,11 +2082,9 @@ async fn private_server_silently_drops_unauthorized_request() { // Private server (is_announced_server defaults to false). let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - allowed_public_keys: vec![allowed_keys.public_key().to_hex()], - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_allowed_public_keys(vec![allowed_keys.public_key().to_hex()]), as_pool(server_pool), ) .await @@ -2228,11 +2096,9 @@ async fn private_server_silently_drops_unauthorized_request() { server.start().await.expect("server start"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -2276,12 +2142,10 @@ async fn announced_server_does_not_error_on_unauthorized_notification() { let server_pubkey = server_pool.mock_public_key(); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - allowed_public_keys: vec![allowed_keys.public_key().to_hex()], - is_announced_server: true, - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_announced_server(true) + .with_allowed_public_keys(vec![allowed_keys.public_key().to_hex()]), as_pool(server_pool), ) .await @@ -2293,11 +2157,9 @@ async fn announced_server_does_not_error_on_unauthorized_notification() { server.start().await.expect("server start"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -2341,27 +2203,20 @@ async fn first_response_includes_discovery_tags() { let s_pool = Arc::new(server_pool); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - is_announced_server: true, - server_info: Some(ServerInfo { - name: Some("Disco-Server".to_string()), - ..Default::default() - }), - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Optional, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional) + .with_server_info(ServerInfo::default().with_name("Disco-Server".to_string())) + .with_announced_server(true), Arc::clone(&s_pool) as Arc, ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -2472,23 +2327,19 @@ async fn notification_mirror_selection_wrt_cep_19() { let s_pool = Arc::new(server_pool); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Optional, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional), Arc::clone(&s_pool) as Arc, ) .await .expect("create server transport"); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Ephemeral, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Ephemeral), as_pool(client_pool), ) .await @@ -2561,22 +2412,18 @@ async fn server_response_includes_encryption_tags_when_enabled() { let server_pool_arc = Arc::new(server_pool); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Optional, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional), Arc::clone(&server_pool_arc) as Arc, ) .await .unwrap(); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -2639,22 +2486,18 @@ async fn server_response_excludes_ephemeral_tag_when_persistent() { let server_pool_arc = Arc::new(server_pool); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Persistent, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Persistent), Arc::clone(&server_pool_arc) as Arc, ) .await .unwrap(); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -2716,21 +2559,16 @@ async fn server_learns_capabilities_from_client_request() { let server_pubkey = server_pool.mock_public_key(); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), as_pool(server_pool), ) .await .unwrap(); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -2781,25 +2619,18 @@ async fn server_disabled_encryption_omits_encryption_tags() { let server_pool_arc = Arc::new(server_pool); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - server_info: Some(ServerInfo { - name: Some("NoEncrypt".to_string()), - ..Default::default() - }), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_server_info(ServerInfo::default().with_name("NoEncrypt".to_string())), Arc::clone(&server_pool_arc) as Arc, ) .await .unwrap(); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -2866,12 +2697,10 @@ async fn client_disabled_encryption_emits_no_discovery_tags() { let server_keys = Keys::generate(); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_keys.public_key().to_hex(), - encryption_mode: EncryptionMode::Disabled, - gift_wrap_mode: GiftWrapMode::Optional, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_keys.public_key().to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_gift_wrap_mode(GiftWrapMode::Optional), Arc::clone(&pool) as Arc, ) .await @@ -2915,12 +2744,10 @@ async fn client_second_request_carries_no_discovery_tags() { let server_keys = Keys::generate(); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_keys.public_key().to_hex(), - encryption_mode: EncryptionMode::Disabled, - gift_wrap_mode: GiftWrapMode::Optional, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_keys.public_key().to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_gift_wrap_mode(GiftWrapMode::Optional), Arc::clone(&pool) as Arc, ) .await @@ -2975,26 +2802,19 @@ async fn client_learns_server_capabilities_from_first_response() { let server_pubkey = server_pool.mock_public_key(); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - server_info: Some(ServerInfo { - name: Some("CapServer".to_string()), - ..Default::default() - }), - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Optional, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional) + .with_server_info(ServerInfo::default().with_name("CapServer".to_string())), as_pool(server_pool), ) .await .unwrap(); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -3067,26 +2887,19 @@ async fn client_or_assigns_capabilities_across_responses() { let client_pool = Arc::new(client_pool); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - server_info: Some(ServerInfo { - name: Some("PersistentServer".to_string()), - ..Default::default() - }), - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Persistent, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Persistent) + .with_server_info(ServerInfo::default().with_name("PersistentServer".to_string())), as_pool(server_pool), ) .await .unwrap(); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), Arc::clone(&client_pool) as Arc, ) .await @@ -3186,26 +2999,19 @@ async fn client_baseline_event_not_replaced_by_later_responses() { let client_pool = Arc::new(client_pool); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - server_info: Some(ServerInfo { - name: Some("BaselineServer".to_string()), - ..Default::default() - }), - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Optional, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional) + .with_server_info(ServerInfo::default().with_name("BaselineServer".to_string())), as_pool(server_pool), ) .await .unwrap(); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), Arc::clone(&client_pool) as Arc, ) .await @@ -3296,12 +3102,10 @@ async fn client_optional_encryption_emits_discovery_tags() { let client_pool = Arc::new(client_pool); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Optional, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional), Arc::clone(&client_pool) as Arc, ) .await @@ -3361,32 +3165,25 @@ async fn multi_client_concurrent_requests_both_get_responses() { let server_pubkey = server_pool.mock_public_key(); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), as_pool(server_pool), ) .await .expect("create server transport"); let mut client_a = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_a_pool), ) .await .expect("create client A"); let mut client_b = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_b_pool), ) .await @@ -3532,11 +3329,9 @@ async fn client_close_stops_event_loop() { let server_pubkey = server_pool.mock_public_key(); let mut client = NostrClientTransport::with_relay_pool( - NostrClientTransportConfig { - server_pubkey: server_pubkey.to_hex(), - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), ) .await @@ -3562,10 +3357,7 @@ async fn server_close_stops_event_loop() { let (_client_pool, server_pool) = MockRelayPool::create_pair(); let mut server = NostrServerTransport::with_relay_pool( - NostrServerTransportConfig { - encryption_mode: EncryptionMode::Disabled, - ..Default::default() - }, + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), as_pool(server_pool), ) .await From ad372290c0a4555077efc3673a83a5c5121e6c7a Mon Sep 17 00:00:00 2001 From: ContextVM Date: Wed, 6 May 2026 20:18:18 +0200 Subject: [PATCH 066/116] refactor(rmcp): simplify transport API by removing wrapper adapters Remove NostrServerRmcpTransport and NostrClientRmcpTransport wrapper types, implementing IntoTransport directly on the raw Nostr transports instead. This simplifies the API by eliminating the redundant .into_rmcp_transport() call and reducing indirection in the transport layer. --- examples/native_echo_client.rs | 2 +- examples/native_echo_server.rs | 4 +--- sdk | 2 +- src/gateway/mod.rs | 6 ++--- src/proxy/mod.rs | 6 ++--- src/rmcp_transport/mod.rs | 6 ++--- src/rmcp_transport/transport.rs | 42 +++++++-------------------------- 7 files changed, 19 insertions(+), 49 deletions(-) diff --git a/examples/native_echo_client.rs b/examples/native_echo_client.rs index 7c46f87..734a7e4 100644 --- a/examples/native_echo_client.rs +++ b/examples/native_echo_client.rs @@ -50,7 +50,7 @@ async fn main() -> Result<()> { ) .await?; - let client = EchoClient.serve(transport.into_rmcp_transport()).await?; + let client = EchoClient.serve(transport).await?; let peer_info = client .peer_info() diff --git a/examples/native_echo_server.rs b/examples/native_echo_server.rs index dc3b302..e0548d4 100644 --- a/examples/native_echo_server.rs +++ b/examples/native_echo_server.rs @@ -98,9 +98,7 @@ async fn main() -> Result<()> { ) .await?; - let service = EchoServer::new() - .serve(transport.into_rmcp_transport()) - .await?; + let service = EchoServer::new().serve(transport).await?; println!("Server ready. Press Ctrl+C to stop."); service.waiting().await?; Ok(()) diff --git a/sdk b/sdk index 5f773a2..7a0c5c3 160000 --- a/sdk +++ b/sdk @@ -1 +1 @@ -Subproject commit 5f773a20d9ea4b0a5f06d1b860d3d3da7509699f +Subproject commit 7a0c5c398c8ffcc6b07ddb181c67a29b77dc3cb4 diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index 0feb03a..c5cd794 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -84,7 +84,7 @@ impl NostrMCPGateway { /// Start a gateway directly from an rmcp server handler. /// /// This additive API keeps the existing `new/start/send_response` flow intact, - /// while allowing rmcp-first usage through the worker adapter. + /// while also allowing direct `handler.serve(transport)` style usage. pub async fn serve_handler( signer: T, config: GatewayConfig, @@ -97,9 +97,7 @@ impl NostrMCPGateway { use crate::NostrServerTransport; use rmcp::ServiceExt; - let transport = NostrServerTransport::new(signer, config.nostr_config) - .await? - .into_rmcp_transport(); + let transport = NostrServerTransport::new(signer, config.nostr_config).await?; handler .serve(transport) .await diff --git a/src/proxy/mod.rs b/src/proxy/mod.rs index c6c1a34..3c9f9e7 100644 --- a/src/proxy/mod.rs +++ b/src/proxy/mod.rs @@ -73,7 +73,7 @@ impl NostrMCPProxy { /// Start a proxy directly from an rmcp client handler. /// /// This additive API keeps the existing `new/start/send` flow intact, - /// while allowing rmcp-first usage through the worker adapter. + /// while also allowing direct `handler.serve(transport)` style usage. pub async fn serve_client_handler( signer: T, config: ProxyConfig, @@ -86,9 +86,7 @@ impl NostrMCPProxy { use crate::NostrClientTransport; use rmcp::ServiceExt; - let transport = NostrClientTransport::new(signer, config.nostr_config) - .await? - .into_rmcp_transport(); + let transport = NostrClientTransport::new(signer, config.nostr_config).await?; handler .serve(transport) .await diff --git a/src/rmcp_transport/mod.rs b/src/rmcp_transport/mod.rs index bf5c99f..436f1dd 100644 --- a/src/rmcp_transport/mod.rs +++ b/src/rmcp_transport/mod.rs @@ -1,6 +1,7 @@ -//! RMCP integration scaffolding. +//! rmcp integration for ContextVM Nostr transports. //! -//! This module bridges the existing Nostr transport implementation with rmcp services. +//! This module contains the conversion helpers and worker bridge that let raw +//! ContextVM transports plug directly into rmcp service APIs. pub mod convert; pub mod transport; @@ -13,5 +14,4 @@ pub use convert::{ internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, rmcp_server_tx_to_internal, }; -pub use transport::{NostrClientRmcpTransport, NostrServerRmcpTransport}; pub use worker::{NostrClientWorker, NostrServerWorker}; diff --git a/src/rmcp_transport/transport.rs b/src/rmcp_transport/transport.rs index f10223a..29e8fb4 100644 --- a/src/rmcp_transport/transport.rs +++ b/src/rmcp_transport/transport.rs @@ -1,4 +1,4 @@ -//! Direct rmcp adapter entrypoints over raw ContextVM Nostr transports. +//! rmcp transport integration for raw ContextVM Nostr transports. use crate::{ core::error::Error, @@ -6,50 +6,26 @@ use crate::{ transport::{client::NostrClientTransport, server::NostrServerTransport}, }; -/// Direct rmcp adapter for [`NostrServerTransport`](src/transport/server/mod.rs:87). -pub struct NostrServerRmcpTransport { - worker: NostrServerWorker, -} - -impl NostrServerTransport { - /// Convert this raw transport into an rmcp-compatible transport adapter. - pub fn into_rmcp_transport(self) -> NostrServerRmcpTransport { - NostrServerRmcpTransport { - worker: NostrServerWorker::from_transport(self), - } - } -} - impl rmcp::transport::IntoTransport - for NostrServerRmcpTransport + for NostrServerTransport { + /// Convert the raw server transport into rmcp's transport model via the + /// worker bridge. fn into_transport( self, ) -> impl rmcp::transport::Transport + 'static { - self.worker.into_transport() - } -} - -/// Direct rmcp adapter for [`NostrClientTransport`](src/transport/client/mod.rs:69). -pub struct NostrClientRmcpTransport { - worker: NostrClientWorker, -} - -impl NostrClientTransport { - /// Convert this raw transport into an rmcp-compatible transport adapter. - pub fn into_rmcp_transport(self) -> NostrClientRmcpTransport { - NostrClientRmcpTransport { - worker: NostrClientWorker::from_transport(self), - } + NostrServerWorker::from_transport(self).into_transport() } } impl rmcp::transport::IntoTransport - for NostrClientRmcpTransport + for NostrClientTransport { + /// Convert the raw client transport into rmcp's transport model via the + /// worker bridge. fn into_transport( self, ) -> impl rmcp::transport::Transport + 'static { - self.worker.into_transport() + NostrClientWorker::from_transport(self).into_transport() } } From 53c2a9e6c3197fe9990d6a601cef1c718a764799 Mon Sep 17 00:00:00 2001 From: ContextVM Date: Thu, 7 May 2026 12:21:03 +0200 Subject: [PATCH 067/116] refactor(examples): use builder pattern for transport configuration Refactored native_echo_client and native_echo_server examples to use the builder pattern (with_*) instead of struct literal syntax for NostrClientTransportConfig and NostrServerTransportConfig initialization. This provides a more fluent and consistent API for configuring transport options. --- examples/native_echo_client.rs | 12 +++++------- examples/native_echo_server.rs | 22 ++++++++++------------ 2 files changed, 15 insertions(+), 19 deletions(-) diff --git a/examples/native_echo_client.rs b/examples/native_echo_client.rs index 734a7e4..be5e0dd 100644 --- a/examples/native_echo_client.rs +++ b/examples/native_echo_client.rs @@ -40,13 +40,11 @@ async fn main() -> Result<()> { let transport = NostrClientTransport::new( signer, - NostrClientTransportConfig { - relay_urls: vec![RELAY_URL.to_string()], - server_pubkey, - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Optional, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_relay_urls(vec![RELAY_URL.to_string()]) + .with_server_pubkey(server_pubkey) + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional), ) .await?; diff --git a/examples/native_echo_server.rs b/examples/native_echo_server.rs index e0548d4..e463e62 100644 --- a/examples/native_echo_server.rs +++ b/examples/native_echo_server.rs @@ -83,18 +83,16 @@ async fn main() -> Result<()> { let transport = NostrServerTransport::new( signer, - NostrServerTransportConfig { - relay_urls: vec![RELAY_URL.to_string()], - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Optional, - is_announced_server: false, - server_info: Some(ServerInfo { - name: Some("contextvm-native-echo".to_string()), - about: Some("Native rmcp echo server example".to_string()), - ..Default::default() - }), - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_relay_urls(vec![RELAY_URL.to_string()]) + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional) + .with_announced_server(false) + .with_server_info( + ServerInfo::default() + .with_name("contextvm-native-echo".to_string()) + .with_about("Native rmcp echo server example".to_string()), + ), ) .await?; From 5b6670e5ef9bbaf448aa9c2d033210ae5d516ac2 Mon Sep 17 00:00:00 2001 From: ContextVM Date: Thu, 7 May 2026 17:28:04 +0200 Subject: [PATCH 068/116] docs: add from_sk() signer documentation across guides Add documentation for loading existing private keys with signer::from_sk() to the native server, native client, proxy, and transport guides. Also remove inline file path references from documentation to make guides more self-contained. --- docs/README.md | 24 ++++++------ docs/client-transport.md | 60 +++++++++++++++++----------- docs/discovery.md | 22 +++++------ docs/encryption.md | 20 +++++----- docs/gateway.md | 30 +++++++------- docs/overview.md | 84 ++++++++++++++++++++-------------------- docs/proxy.md | 40 ++++++++++++------- docs/rmcp.md | 20 +++++----- docs/server-transport.md | 57 ++++++++++++++++----------- docs/transports.md | 27 +++++++++---- 10 files changed, 218 insertions(+), 166 deletions(-) diff --git a/docs/README.md b/docs/README.md index 30851f0..2c9a74d 100644 --- a/docs/README.md +++ b/docs/README.md @@ -10,32 +10,32 @@ The main mental model is: 2. attach a ContextVM transport 3. run MCP over Nostr -For most native Rust applications, the primary entry points are [`NostrServerTransport`](src/transport/server/mod.rs:87) and [`NostrClientTransport`](src/transport/client/mod.rs:69), used together with `rmcp` services via [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20). +For most native Rust applications, the primary entry points are `NostrServerTransport` and `NostrClientTransport`, used together with `rmcp` services via `ServiceExt`. ## Guides ### Native ContextVM applications -- [`overview.md`](docs/overview.md) -- [`server-transport.md`](docs/server-transport.md) -- [`client-transport.md`](docs/client-transport.md) -- [`encryption.md`](docs/encryption.md) -- [`discovery.md`](docs/discovery.md) +- Overview: architecture, API selection, and protocol model +- Native server guide: server setup over Nostr +- Native client guide: client setup over Nostr +- Encryption guide: plaintext, encrypted, and gift-wrap behavior +- Discovery guide: public discovery helpers and event kinds ### Bridging existing MCP applications -- [`gateway.md`](docs/gateway.md) -- [`proxy.md`](docs/proxy.md) +- Gateway guide: expose an existing server-side MCP flow over ContextVM +- Proxy guide: connect to a remote ContextVM server with a lighter client bridge ### Integration notes -- [`rmcp.md`](docs/rmcp.md) -- [`transports.md`](docs/transports.md) +- RMCP integration guide: how the optional `rmcp` integration layer fits in +- Transport guide: lower-level transport behavior and direct usage ## Documentation goals The docs here are concise and implementation-driven. -They are derived from public APIs in [`src/lib.rs`](src/lib.rs:1), `rmcp` service APIs in [`rust-sdk/crates/rmcp/src/lib.rs`](rust-sdk/crates/rmcp/src/lib.rs), example programs such as [`examples/rmcp_integration_test.rs`](examples/rmcp_integration_test.rs), and transport/conformance tests such as [`tests/transport_integration.rs`](tests/transport_integration.rs). +They are derived from the public crate APIs, the `rmcp` service APIs, the repository examples, and the transport and conformance tests in this repository. -They are meant to be migrated later into [`contextvm-docs/src/content/docs`](contextvm-docs/src/content/docs). +They are intended to remain usable on their own, without depending on external documentation pages. diff --git a/docs/client-transport.md b/docs/client-transport.md index c268932..3a947fb 100644 --- a/docs/client-transport.md +++ b/docs/client-transport.md @@ -5,16 +5,34 @@ Use this path when you are building a native ContextVM client in Rust. The recommended architecture is: - define an `rmcp` client handler or use a lightweight client info object -- create a [`NostrClientTransport`](src/transport/client/mod.rs:69) -- attach the transport with `rmcp`'s [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) +- create a `NostrClientTransport` +- attach the transport with `rmcp`'s `ServiceExt` -This follows the same pattern as `rmcp` client examples such as [`rust-sdk/examples/clients/src/streamable_http.rs`](rust-sdk/examples/clients/src/streamable_http.rs), except the transport is ContextVM over Nostr instead of HTTP. +This follows the same pattern as the standard `rmcp` client examples, except the transport is ContextVM over Nostr instead of HTTP. ## The high-level shape -In `rmcp`, a client is typically started with `client_info.serve(transport)`, as shown in [`rust-sdk/examples/clients/src/streamable_http.rs:24`](rust-sdk/examples/clients/src/streamable_http.rs:24). +In `rmcp`, a client is typically started with `client_info.serve(transport)`. -For ContextVM, the transport becomes [`NostrClientTransport`](src/transport/client/mod.rs:69), then you convert it into an rmcp-compatible adapter with [`into_rmcp_transport()`](src/rmcp_transport/transport.rs:40). +For ContextVM, the transport becomes `NostrClientTransport`. In the current SDK API, you pass that transport directly to `ServiceExt`; there is no extra adapter step in the public workflow. + +## Loading an existing private key + +The signer helper is not limited to ephemeral keys. If you already have a private key, load it with `from_sk()`. + +It accepts either: + +- a 64-character hex secret key +- an `nsec` bech32 secret key + +```rust +use contextvm_sdk::signer; + +let signer = signer::from_sk("")?; +println!("client pubkey: {}", signer.public_key().to_hex()); +``` + +Use `generate()` only when you explicitly want a new random identity for a short-lived client or test flow. ## Example @@ -56,9 +74,7 @@ async fn main() -> anyhow::Result<()> { ) .await?; - let client = DemoClient - .serve(transport.into_rmcp_transport()) - .await?; + let client = DemoClient.serve(transport).await?; let server_info = client.peer_info(); println!("Connected to server: {server_info:#?}"); @@ -79,22 +95,22 @@ async fn main() -> anyhow::Result<()> { } ``` -This is the ContextVM equivalent of the workflow in [`rust-sdk/examples/clients/src/streamable_http.rs:19`](rust-sdk/examples/clients/src/streamable_http.rs:19) through [`rust-sdk/examples/clients/src/streamable_http.rs:43`](rust-sdk/examples/clients/src/streamable_http.rs:43), using the direct adapter [`NostrClientTransport::into_rmcp_transport()`](src/rmcp_transport/transport.rs:40). +This is the ContextVM equivalent of the usual `rmcp` client workflow, but using `NostrClientTransport` directly. ## What the transport adds -[`NostrClientTransport`](src/transport/client/mod.rs:69) adds ContextVM-specific client behavior on top of `rmcp` client semantics: +`NostrClientTransport` adds ContextVM-specific client behavior on top of `rmcp` client semantics: -- relay connection management via [`NostrClientTransport::new()`](src/transport/client/mod.rs:94) -- target server selection through `server_pubkey` in [`NostrClientTransportConfig`](src/transport/client/mod.rs:33) -- request/response correlation via [`send()`](src/transport/client/mod.rs:283) -- server capability learning via [`learn_server_discovery()`](src/transport/client/mod.rs:477) -- optional stateless behavior via `is_stateless` in [`NostrClientTransportConfig`](src/transport/client/mod.rs:33) -- encrypted message reception and gift-wrap deduplication in [`handle_notification()`](src/transport/client/mod.rs:530) +- relay connection management via `NostrClientTransport::new()` +- target server selection through `server_pubkey` in `NostrClientTransportConfig` +- request and response correlation via `send()` +- server capability learning from discovery tags +- optional stateless behavior via `is_stateless` in `NostrClientTransportConfig` +- encrypted message reception and gift-wrap deduplication during notification handling ## Configuration fields that matter first -Start with these fields in [`NostrClientTransportConfig`](src/transport/client/mod.rs:33): +Start with these fields in `NostrClientTransportConfig`: - `relay_urls`: relays the client uses to reach the server - `server_pubkey`: the target server public key @@ -107,11 +123,11 @@ Start with these fields in [`NostrClientTransportConfig`](src/transport/client/m Use this page's approach when you are writing a new Rust MCP client that should speak ContextVM natively. -Use [`proxy.md`](docs/proxy.md) when you want a simpler message-oriented bridge and do not want the full `rmcp` running client model. +Use the proxy guide when you want a simpler message-oriented bridge and do not want the full `rmcp` running client model. ## Behavioral notes -- The client-side `rmcp` handshake is driven by [`serve_client()`](rust-sdk/crates/rmcp/src/service/client.rs:177). -- The initialize request is sent automatically in [`rust-sdk/crates/rmcp/src/service/client.rs:219`](rust-sdk/crates/rmcp/src/service/client.rs:219). -- Stateless initialization behavior in the ContextVM client transport is covered by [`tests/conformance_stateless_mode.rs`](tests/conformance_stateless_mode.rs). -- Capability learning and gift-wrap handling are implemented in [`src/transport/client/mod.rs:477`](src/transport/client/mod.rs:477) and [`src/transport/client/mod.rs:530`](src/transport/client/mod.rs:530). +- The client-side `rmcp` handshake is driven by the normal `serve_client()` flow. +- The initialize request is sent automatically as part of the running client startup sequence. +- Stateless initialization behavior is covered by the conformance tests. +- Capability learning and gift-wrap handling happen inside the client transport implementation. diff --git a/docs/discovery.md b/docs/discovery.md index af9ade3..b4d74fb 100644 --- a/docs/discovery.md +++ b/docs/discovery.md @@ -1,6 +1,6 @@ # Discovery Guide -The Rust SDK exposes public discovery helpers in [`src/discovery/mod.rs`](src/discovery/mod.rs). +The Rust SDK exposes public discovery helpers for finding announced servers and their published capabilities. These functions query public announcement events so clients can find servers before opening a direct session. @@ -8,17 +8,17 @@ These functions query public announcement events so clients can find servers bef The current implementation supports: -- servers via [`discover_servers()`](src/discovery/mod.rs:54) -- tools via [`discover_tools()`](src/discovery/mod.rs:81) -- resources via [`discover_resources()`](src/discovery/mod.rs:90) -- prompts via [`discover_prompts()`](src/discovery/mod.rs:99) -- resource templates via [`discover_resource_templates()`](src/discovery/mod.rs:108) +- servers via `discover_servers()` +- tools via `discover_tools()` +- resources via `discover_resources()` +- prompts via `discover_prompts()` +- resource templates via `discover_resource_templates()` -When the `rmcp` feature is enabled, typed variants are also available for tools, resources, prompts, and resource templates in [`src/discovery/mod.rs`](src/discovery/mod.rs:122). +When the `rmcp` feature is enabled, typed variants are also available for tools, resources, prompts, and resource templates. ## Minimal example -This follows [`examples/discovery.rs`](examples/discovery.rs). +This follows the repository discovery example. ```rust use contextvm_sdk::discovery; @@ -49,7 +49,7 @@ async fn main() -> contextvm_sdk::Result<()> { ## Discovery event model -The event kinds follow the public announcement model summarized in [`README.md`](README.md:38): +The event kinds follow the public announcement model summarized in the repository root README: - `11316`: server announcement - `11317`: tools list @@ -57,10 +57,10 @@ The event kinds follow the public announcement model summarized in [`README.md`] - `11319`: resource templates - `11320`: prompts list -This aligns with the public discovery model documented in [`contextvm-docs/src/content/docs/spec/ceps/cep-6.md`](contextvm-docs/src/content/docs/spec/ceps/cep-6.md:2). +These event kinds are the SDK's public discovery model for server metadata and advertised MCP capabilities. ## Important limitations - discovery is public metadata, not a replacement for direct transport negotiation - the current helpers fetch and parse latest public lists, but they do not replace direct session learning -- for stateless/direct capability learning, see the behavior described in [`contextvm-docs/src/content/docs/spec/ceps/informational/cep-35.md`](contextvm-docs/src/content/docs/spec/ceps/informational/cep-35.md:60) +- direct session learning still matters for encryption preferences, gift-wrap support, and first-message capability hints on an active connection diff --git a/docs/encryption.md b/docs/encryption.md index fd22e5f..5c3c911 100644 --- a/docs/encryption.md +++ b/docs/encryption.md @@ -1,28 +1,28 @@ # Encryption Guide -ContextVM encryption in this SDK is controlled by [`EncryptionMode`](src/core/types.rs:17) and [`GiftWrapMode`](src/core/types.rs:34). +ContextVM encryption in this SDK is controlled by `EncryptionMode` and `GiftWrapMode`. -The direct transport behavior is aligned with the protocol references in [`contextvm-docs/src/content/docs/spec/ceps/cep-4.md`](contextvm-docs/src/content/docs/spec/ceps/cep-4.md:2) and [`contextvm-docs/src/content/docs/spec/ceps/cep-19.md`](contextvm-docs/src/content/docs/spec/ceps/cep-19.md:2). +At a high level, direct traffic can be sent as plaintext ContextVM events or as encrypted NIP-44 payloads wrapped in gift-wrap events, depending on the configured policy on both peers. ## Encryption modes -[`EncryptionMode`](src/core/types.rs:17) has three modes: +`EncryptionMode` has three modes: - `Optional`: accept both plaintext and encrypted traffic - `Required`: require encrypted traffic - `Disabled`: reject encrypted traffic and use plaintext only -These semantics are not only conceptual; they are exercised in [`tests/transport_integration.rs`](tests/transport_integration.rs). +These semantics are not only conceptual; they are also exercised by the transport integration tests. ## Gift-wrap modes -[`GiftWrapMode`](src/core/types.rs:34) controls which outer encrypted event kind is used: +`GiftWrapMode` controls which outer encrypted event kind is used: - `Optional`: accept and prefer either supported mode - `Ephemeral`: use kind `21059` - `Persistent`: use kind `1059` -The helper methods [`allows_kind()`](src/core/types.rs:46) and [`supports_ephemeral()`](src/core/types.rs:55) show the expected policy behavior. +The helper methods `allows_kind()` and `supports_ephemeral()` show the expected policy behavior. ## Practical rules @@ -38,19 +38,19 @@ Encrypted ContextVM messages: 2. encrypt it with NIP-44 3. wrap it as a gift-wrap event using kind `1059` or `21059` -The implementation details live in [`src/encryption/mod.rs`](src/encryption/mod.rs). +The implementation details live in the SDK encryption module. ## Response mirroring One important implementation detail is that server responses mirror the client’s inbound encryption format when policy allows it. -This behavior is verified in [`tests/transport_integration.rs`](tests/transport_integration.rs) and is important for interoperable mixed-mode deployments. +This behavior is verified by the transport integration tests and is important for interoperable mixed-mode deployments. ## Deduplication Both client and server transports deduplicate encrypted outer gift-wrap event ids before delivering them. -This is covered by [`tests/conformance_dedup.rs`](tests/conformance_dedup.rs) and by encrypted transport integration tests in [`tests/transport_integration.rs`](tests/transport_integration.rs). +This is covered by the deduplication and encrypted transport integration tests. ## Example configuration @@ -69,7 +69,7 @@ let config = NostrClientTransportConfig { ## Discovery tags -Encryption support is also surfaced through discovery tags and first-message capability learning, consistent with [`contextvm-docs/src/content/docs/spec/ceps/informational/cep-35.md`](contextvm-docs/src/content/docs/spec/ceps/informational/cep-35.md:60). +Encryption support is also surfaced through discovery tags and first-message capability learning. In practice, this matters for: diff --git a/docs/gateway.md b/docs/gateway.md index e37515a..c874965 100644 --- a/docs/gateway.md +++ b/docs/gateway.md @@ -1,10 +1,10 @@ # Gateway Guide -[`NostrMCPGateway`](src/gateway/mod.rs:20) is the simplest way to expose an MCP server through ContextVM. +`NostrMCPGateway` is the simplest way to expose an MCP server through ContextVM. -It wraps [`NostrServerTransport`](src/transport/server/mod.rs:87), receives incoming ContextVM requests from Nostr, and lets your application send responses back using the inbound event id. +It wraps `NostrServerTransport`, receives incoming ContextVM requests from Nostr, and lets your application send responses back using the inbound event id. -For native Rust applications, this is usually not the primary path. Most users should build an `rmcp` server and attach [`NostrServerTransport`](src/transport/server/mod.rs:87) directly, as described in [`server-transport.md`](docs/server-transport.md). +For native Rust applications, this is usually not the primary path. Most users should build an `rmcp` server and attach `NostrServerTransport` directly, as described in the native server guide. ## When to use it @@ -18,7 +18,7 @@ Do not start here if you are writing a new native Rust MCP server from scratch. ## Minimal example -This follows the shape of [`examples/gateway.rs`](examples/gateway.rs). +This follows the shape of the repository gateway example. ```rust use contextvm_sdk::core::types::{ @@ -91,21 +91,21 @@ async fn main() -> contextvm_sdk::Result<()> { ## What the gateway gives you -- a message channel of [`IncomingRequest`](src/transport/server/mod.rs:113) -- automatic routing of responses by original Nostr event id through [`send_response()`](src/gateway/mod.rs:57) -- optional public announcements through [`announce()`](src/gateway/mod.rs:62) +- a message channel of `IncomingRequest` +- automatic routing of responses by original Nostr event id through `send_response()` +- optional public announcements through `announce()` ## When not to use it -Prefer [`server-transport.md`](docs/server-transport.md) when: +Prefer the native server transport path when: -- your application is already modeled as an `rmcp` [`ServerHandler`](rust-sdk/crates/rmcp/src/lib.rs:16) -- you want the normal `rmcp` running service lifecycle through [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) +- your application is already modeled as an `rmcp` `ServerHandler` +- you want the normal `rmcp` running service lifecycle through `ServiceExt` - you want docs and examples that match the broader `rmcp` ecosystem ## Important server config -The main operational knobs live on [`NostrServerTransportConfig`](src/transport/server/mod.rs:36): +The main operational knobs live on `NostrServerTransportConfig`: - `relay_urls`: relays to connect to - `encryption_mode`: plaintext vs encrypted session policy @@ -119,11 +119,11 @@ The main operational knobs live on [`NostrServerTransportConfig`](src/transport/ ## Behavioral notes - responses are routed using the inbound request event id, not just the JSON-RPC id -- for announced servers, public metadata publication is part of the supported flow, verified in [`tests/transport_integration.rs`](tests/transport_integration.rs) -- authorization and allowlist bypass behavior are also exercised in [`tests/transport_integration.rs`](tests/transport_integration.rs) +- for announced servers, public metadata publication is part of the supported flow +- authorization and allowlist bypass behavior are also exercised by the integration tests ## rmcp path -If your server already uses `rmcp`, the gateway also exposes [`serve_handler()`](src/gateway/mod.rs:88) so you can attach a handler directly without manually running the request loop. +If your server already uses `rmcp`, the gateway also exposes `serve_handler()` so you can attach a handler directly without manually running the request loop. -That said, the preferred native documentation path is still [`server-transport.md`](docs/server-transport.md), because it reflects the main architecture: `rmcp` service first, ContextVM transport second. +That said, the preferred native architecture is still `rmcp` service first and ContextVM transport second. diff --git a/docs/overview.md b/docs/overview.md index 385f62a..528c7a7 100644 --- a/docs/overview.md +++ b/docs/overview.md @@ -12,9 +12,9 @@ That means the usual shape is: 1. define an `rmcp` server or client 2. create a ContextVM Nostr transport -3. attach the transport with [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) +3. attach the transport with `ServiceExt` -This is the same pattern shown by `rmcp` examples such as [`rust-sdk/examples/servers/src/calculator_stdio.rs:20`](rust-sdk/examples/servers/src/calculator_stdio.rs:20) and [`rust-sdk/examples/clients/src/streamable_http.rs:24`](rust-sdk/examples/clients/src/streamable_http.rs:24). The only difference is that this SDK replaces stdio, HTTP, or raw sockets with Nostr transports. +This is the same pattern shown by the `rmcp` server and client examples. The only difference is that this SDK replaces stdio, HTTP, or raw sockets with Nostr transports. ## Choose the right API @@ -22,82 +22,82 @@ Most users should start with one of these entry points: | Use case | Start with | |---|---| -| Build a native ContextVM server | [`NostrServerTransport`](src/transport/server/mod.rs:87) + `rmcp` [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) | -| Build a native ContextVM client | [`NostrClientTransport`](src/transport/client/mod.rs:69) + `rmcp` [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) | -| Expose an already-existing MCP server on Nostr | [`NostrMCPGateway`](src/gateway/mod.rs:20) | -| Connect to a remote ContextVM server with a simpler bridge | [`NostrMCPProxy`](src/proxy/mod.rs:17) | -| Discover public servers and capabilities | [`discover_servers()`](src/discovery/mod.rs:54) and related helpers | -| Work directly with the optional bridge layer | [`serve_handler()`](src/gateway/mod.rs:88) or [`serve_client_handler()`](src/proxy/mod.rs:77) | +| Build a native ContextVM server | `NostrServerTransport` + `rmcp` `ServiceExt` | +| Build a native ContextVM client | `NostrClientTransport` + `rmcp` `ServiceExt` | +| Expose an already-existing MCP server on Nostr | `NostrMCPGateway` | +| Connect to a remote ContextVM server with a simpler bridge | `NostrMCPProxy` | +| Discover public servers and capabilities | `discover_servers()` and related helpers | +| Work directly with the optional bridge layer | `serve_handler()` or `serve_client_handler()` | ## Architecture The crate is organized in layers: -- [`core`](src/core/types.rs:1): protocol types, validation, serialization, errors -- [`relay`](src/relay/mod.rs): relay pool abstraction -- [`signer`](src/signer/mod.rs): key generation and signer helpers -- [`encryption`](src/encryption/mod.rs): NIP-44 and gift-wrap helpers -- [`transport`](src/transport/mod.rs:1): native ContextVM client/server transports -- [`gateway`](src/gateway/mod.rs:1): wrapper for exposing an existing MCP server flow on Nostr -- [`proxy`](src/proxy/mod.rs:1): wrapper for connecting to a remote server without the full `rmcp` client model -- [`discovery`](src/discovery/mod.rs:1): announcement and capability discovery +- `core`: protocol types, validation, serialization, errors +- `relay`: relay pool abstraction +- `signer`: key generation and signer helpers +- `encryption`: NIP-44 and gift-wrap helpers +- `transport`: native ContextVM client and server transports +- `gateway`: wrapper for exposing an existing MCP server flow on Nostr +- `proxy`: wrapper for connecting to a remote server without the full `rmcp` client model +- `discovery`: announcement and capability discovery -The application-facing `rmcp` layer lives in [`rust-sdk/crates/rmcp/src/lib.rs`](rust-sdk/crates/rmcp/src/lib.rs). Its core extension point is [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20), with server startup in [`serve_server()`](rust-sdk/crates/rmcp/src/service/server.rs:114) and client startup in [`serve_client()`](rust-sdk/crates/rmcp/src/service/client.rs:177). +The application-facing `rmcp` layer provides the `ServiceExt` integration point together with the usual server and client startup flow. ## Protocol model ContextVM keeps MCP semantics intact and uses Nostr only as the transport envelope. -- MCP payloads are represented by [`JsonRpcMessage`](src/core/types.rs:146) +- MCP payloads are represented by `JsonRpcMessage` - direct plaintext ContextVM traffic uses kind `25910` - encrypted traffic uses gift-wrap kinds `1059` or `21059` - public discovery uses kinds `11316` through `11320` -- routing is done with `p` tags and request/response correlation with `e` tags, as reflected in [`README.md`](README.md:36) +- routing is done with `p` tags and request/response correlation with `e` tags, as reflected in the repository root README ## Core types you should know -- [`EncryptionMode`](src/core/types.rs:17): `Optional`, `Required`, `Disabled` -- [`GiftWrapMode`](src/core/types.rs:34): `Optional`, `Ephemeral`, `Persistent` -- [`ServerInfo`](src/core/types.rs:67): announcement metadata -- [`CapabilityExclusion`](src/core/types.rs:269): allowlist bypass rules for specific methods or capabilities +- `EncryptionMode`: `Optional`, `Required`, `Disabled` +- `GiftWrapMode`: `Optional`, `Ephemeral`, `Persistent` +- `ServerInfo`: announcement metadata +- `CapabilityExclusion`: allowlist bypass rules for specific methods or capabilities ## Typical workflows ### Build a native server -1. generate or load keys with [`signer::generate()`](src/signer/mod.rs:13) -2. configure [`NostrServerTransportConfig`](src/transport/server/mod.rs:36) -3. create [`NostrServerTransport`](src/transport/server/mod.rs:87) -4. attach it to an `rmcp` server with [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) -5. optionally publish announcements with [`announce()`](src/transport/server/mod.rs:583) +1. generate keys with `signer::generate()` or load an existing private key with `from_sk()` +2. configure `NostrServerTransportConfig` +3. create `NostrServerTransport` +4. attach it to an `rmcp` server with `ServiceExt` +5. optionally publish announcements with `announce()` ### Build a native client -1. generate or load keys -2. configure [`NostrClientTransportConfig`](src/transport/client/mod.rs:33) -3. create [`NostrClientTransport`](src/transport/client/mod.rs:69) -4. attach it to an `rmcp` client with [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) +1. generate keys with `signer::generate()` or load an existing private key with `from_sk()` +2. configure `NostrClientTransportConfig` +3. create `NostrClientTransport` +4. attach it to an `rmcp` client with `ServiceExt` ### Bridge an existing server or client If you are not building a native `rmcp` service directly, use the wrapper layer: -- [`NostrMCPGateway`](src/gateway/mod.rs:20) for server-side bridging -- [`NostrMCPProxy`](src/proxy/mod.rs:17) for client-side bridging +- `NostrMCPGateway` for server-side bridging +- `NostrMCPProxy` for client-side bridging ### Discover servers -1. create a [`RelayPool`](src/relay/mod.rs) -2. query [`discover_servers()`](src/discovery/mod.rs:54) -3. fetch public tools/resources/prompts with the discovery helpers in [`src/discovery/mod.rs`](src/discovery/mod.rs) +1. create a `RelayPool` +2. query `discover_servers()` +3. fetch public tools, resources, and prompts with the discovery helpers ## What is important in this implementation The Rust SDK already implements behavior that users should rely on: -- stateless client initialization behavior, covered by [`tests/conformance_stateless_mode.rs`](tests/conformance_stateless_mode.rs) -- announcement publication and deletion, covered by [`tests/transport_integration.rs`](tests/transport_integration.rs) -- encryption negotiation and response mirroring, also covered by [`tests/transport_integration.rs`](tests/transport_integration.rs) -- rmcp conversion and routing flow, covered by [`src/rmcp_transport/pipeline_tests.rs`](src/rmcp_transport/pipeline_tests.rs:1) +- stateless client initialization behavior +- announcement publication and deletion +- encryption negotiation and response mirroring +- rmcp conversion and routing flow -Use the task-oriented pages in this directory for those details. Start with [`server-transport.md`](docs/server-transport.md) and [`client-transport.md`](docs/client-transport.md) if you are building native ContextVM applications. +Use the task-oriented pages in this directory for those details. Start with the native server and native client guides if you are building ContextVM applications directly. diff --git a/docs/proxy.md b/docs/proxy.md index 54d2927..0aa57a2 100644 --- a/docs/proxy.md +++ b/docs/proxy.md @@ -1,10 +1,10 @@ # Proxy Guide -[`NostrMCPProxy`](src/proxy/mod.rs:17) is the simplest way to talk to a remote ContextVM server from Rust. +`NostrMCPProxy` is the simplest way to talk to a remote ContextVM server from Rust. -It wraps [`NostrClientTransport`](src/transport/client/mod.rs:69), gives you a receiver for responses and notifications, and handles transport startup and shutdown. +It wraps `NostrClientTransport`, gives you a receiver for responses and notifications, and handles transport startup and shutdown. -For native Rust applications, this is usually not the primary path. Most users should build an `rmcp` client and attach [`NostrClientTransport`](src/transport/client/mod.rs:69) directly, as described in [`client-transport.md`](docs/client-transport.md). +For native Rust applications, this is usually not the primary path. Most users should build an `rmcp` client and attach `NostrClientTransport` directly, as described in the native client guide. ## When to use it @@ -16,9 +16,21 @@ Use the proxy when: Do not start here if you are writing a new native Rust MCP client from scratch. +## Loading an existing private key + +Like the native client transport, the proxy can reuse an existing Nostr identity instead of generating a new one. Load the signer with `from_sk()`: + +```rust +use contextvm_sdk::signer; + +let signer = signer::from_sk("")?; +``` + +Pass that signer to `NostrMCPProxy::new()` exactly as you would pass a freshly generated keypair. + ## Minimal example -This follows [`examples/proxy.rs`](examples/proxy.rs). +This follows the repository proxy example. ```rust use contextvm_sdk::core::types::{JsonRpcMessage, JsonRpcRequest}; @@ -28,7 +40,7 @@ use contextvm_sdk::transport::client::NostrClientTransportConfig; #[tokio::main] async fn main() -> contextvm_sdk::Result<()> { - let keys = signer::generate(); + let keys = signer::from_sk("")?; let config = ProxyConfig { nostr_config: NostrClientTransportConfig { @@ -61,7 +73,7 @@ async fn main() -> contextvm_sdk::Result<()> { ## Client config -The main options live on [`NostrClientTransportConfig`](src/transport/client/mod.rs:33): +The main options live on `NostrClientTransportConfig`: - `relay_urls`: relays used for direct transport - `server_pubkey`: target server identity in hex form @@ -72,9 +84,9 @@ The main options live on [`NostrClientTransportConfig`](src/transport/client/mod ## Stateless mode -[`is_stateless`](src/transport/client/mod.rs:43) is a major behavior switch. +`is_stateless` is a major behavior switch. -When enabled, the client can emulate initialize handling locally instead of waiting for a network roundtrip. This behavior is tested in [`tests/conformance_stateless_mode.rs`](tests/conformance_stateless_mode.rs). +When enabled, the client can emulate initialize handling locally instead of waiting for a network roundtrip. This behavior is covered by the conformance tests. Use it when: @@ -87,18 +99,18 @@ Avoid assuming that every server workflow depends only on stateless behavior. - responses are correlated at the transport level, not just by raw receive order - the client learns peer capabilities from discovery tags on inbound messages -- encrypted traffic is deduplicated by outer gift-wrap event id before delivery, as covered by [`tests/conformance_dedup.rs`](tests/conformance_dedup.rs) +- encrypted traffic is deduplicated by outer gift-wrap event id before delivery ## When not to use it -Prefer [`client-transport.md`](docs/client-transport.md) when: +Prefer the native client transport path when: -- your application is already modeled as an `rmcp` [`ClientHandler`](rust-sdk/crates/rmcp/src/lib.rs:14) -- you want the normal running-client workflow from [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) +- your application is already modeled as an `rmcp` `ClientHandler` +- you want the normal running-client workflow from `ServiceExt` - you want examples that match the rest of the `rmcp` client ecosystem ## rmcp path -If you are building on `rmcp`, use [`serve_client_handler()`](src/proxy/mod.rs:77) instead of manually sending and receiving raw [`JsonRpcMessage`](src/core/types.rs:146) values. +If you are building on `rmcp`, use `serve_client_handler()` instead of manually sending and receiving raw `JsonRpcMessage` values. -That said, the preferred native documentation path is still [`client-transport.md`](docs/client-transport.md), because it reflects the main architecture: `rmcp` client first, ContextVM transport second. +That said, the preferred native architecture is still `rmcp` client first and ContextVM transport second. diff --git a/docs/rmcp.md b/docs/rmcp.md index 56295f3..2c66801 100644 --- a/docs/rmcp.md +++ b/docs/rmcp.md @@ -2,40 +2,40 @@ For native Rust applications, `rmcp` is the main application layer and ContextVM is the transport layer. -The Rust SDK exposes that integration behind the `rmcp` feature, re-exported from [`src/lib.rs`](src/lib.rs:71). The bridge itself lives in [`src/rmcp_transport/mod.rs`](src/rmcp_transport/mod.rs:1). +The Rust SDK exposes that integration behind the `rmcp` feature and re-exports the `rmcp` crate when that feature is enabled. The bridge lives in the SDK's rmcp transport layer. ## Recommended mental model Use `rmcp` to define your server or client behavior, then attach ContextVM transports. -That mirrors the transport-agnostic `rmcp` model exposed in [`rust-sdk/crates/rmcp/src/lib.rs`](rust-sdk/crates/rmcp/src/lib.rs), especially [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20), [`serve_server()`](rust-sdk/crates/rmcp/src/lib.rs:24), and [`serve_client()`](rust-sdk/crates/rmcp/src/lib.rs:22). +That mirrors the transport-agnostic `rmcp` model, especially `ServiceExt`, `serve_server()`, and `serve_client()`. The native entry points in this SDK are therefore: -- [`NostrServerTransport`](src/transport/server/mod.rs:87) for servers -- [`NostrClientTransport`](src/transport/client/mod.rs:69) for clients +- `NostrServerTransport` for servers +- `NostrClientTransport` for clients -Start with [`server-transport.md`](docs/server-transport.md) and [`client-transport.md`](docs/client-transport.md) for that workflow. +For that workflow, use the native server and native client guides in this directory. ## Server-side integration -Use [`serve_handler()`](src/gateway/mod.rs:88) to serve an `rmcp` server handler directly over ContextVM. +Use `serve_handler()` to serve an `rmcp` server handler directly over ContextVM. ## Client-side integration -Use [`serve_client_handler()`](src/proxy/mod.rs:77) to connect an `rmcp` client handler through the ContextVM client worker. +Use `serve_client_handler()` to connect an `rmcp` client handler through the ContextVM client worker. ## Why this still exists as a separate page -The base SDK does not require `rmcp`. The core message model is represented by [`JsonRpcMessage`](src/core/types.rs:146) and related types in [`src/core/types.rs`](src/core/types.rs). +The base SDK does not require `rmcp`. The core message model is represented by `JsonRpcMessage` and related internal JSON-RPC types. That separation keeps the transport usable as a lower-level protocol layer, but most application authors will want the `rmcp` path. -The wrapper APIs in [`src/gateway/mod.rs`](src/gateway/mod.rs:1) and [`src/proxy/mod.rs`](src/proxy/mod.rs:1) are convenience layers on top of this broader model, not the primary architecture for native apps. +The gateway and proxy APIs are convenience layers on top of this broader model, not the primary architecture for native apps. ## Behavioral confidence -The conversion pipeline is covered by [`src/rmcp_transport/pipeline_tests.rs`](src/rmcp_transport/pipeline_tests.rs:1), which tests: +The conversion pipeline is covered by the SDK test suite, which tests: - JSON-RPC parsing into internal message types - internal-to-rmcp conversion diff --git a/docs/server-transport.md b/docs/server-transport.md index e23aae4..05246e0 100644 --- a/docs/server-transport.md +++ b/docs/server-transport.md @@ -5,16 +5,29 @@ Use this path when you are building a native ContextVM server in Rust. The recommended architecture is: - define an `rmcp` server handler -- create a [`NostrServerTransport`](src/transport/server/mod.rs:87) -- attach the transport to the handler with `rmcp`'s [`ServiceExt`](rust-sdk/crates/rmcp/src/lib.rs:20) +- create a `NostrServerTransport` +- attach the transport to the handler with `rmcp`'s `ServiceExt` -This is the same model used by `rmcp` examples such as [`rust-sdk/examples/servers/src/calculator_stdio.rs`](rust-sdk/examples/servers/src/calculator_stdio.rs), except the transport is Nostr instead of stdio. +This is the same model used by the standard `rmcp` server examples, except the transport is Nostr instead of stdio. ## The high-level shape -In `rmcp`, a native server is normally started with `YourHandler.serve(transport)`, as shown in [`rust-sdk/examples/servers/src/calculator_stdio.rs:20`](rust-sdk/examples/servers/src/calculator_stdio.rs:20). +In `rmcp`, a native server is normally started with `YourHandler.serve(transport)`. -For ContextVM, the transport becomes [`NostrServerTransport`](src/transport/server/mod.rs:87), then you convert it into an rmcp-compatible adapter with [`into_rmcp_transport()`](src/rmcp_transport/transport.rs:16). +For ContextVM, the transport becomes `NostrServerTransport`. In the current SDK API, you pass that transport directly to `ServiceExt`; there is no extra adapter step in the public workflow. + +## Loading an existing private key + +If the server should run under a stable Nostr identity, load the signer from an existing private key with `from_sk()`: + +```rust +use contextvm_sdk::signer; + +let signer = signer::from_sk("")?; +println!("server pubkey: {}", signer.public_key().to_hex()); +``` + +This is the right choice for long-lived servers, announced servers, and deployments where clients must recognize the same public key across restarts. ## Example @@ -87,31 +100,29 @@ async fn main() -> anyhow::Result<()> { ) .await?; - let service = DemoServer::new() - .serve(transport.into_rmcp_transport()) - .await?; + let service = DemoServer::new().serve(transport).await?; service.waiting().await?; Ok(()) } ``` -This follows the same service pattern used in [`examples/rmcp_integration_test.rs:247`](examples/rmcp_integration_test.rs:247), but replaces the local duplex transport with [`NostrServerTransport`](src/transport/server/mod.rs:87) and its direct rmcp adapter [`NostrServerTransport::into_rmcp_transport()`](src/rmcp_transport/transport.rs:16). +This follows the same native service pattern as the repository integration example, but replaces the local duplex transport with `NostrServerTransport`. ## What the transport adds -[`NostrServerTransport`](src/transport/server/mod.rs:87) is not just a byte stream adapter. It adds ContextVM-specific behavior on top of `rmcp` server semantics: +`NostrServerTransport` is not just a byte stream adapter. It adds ContextVM-specific behavior on top of `rmcp` server semantics: -- Nostr relay connectivity via [`NostrServerTransport::new()`](src/transport/server/mod.rs:126) -- public announcements via [`announce()`](src/transport/server/mod.rs:583) -- publication of tools, resources, prompts, and resource templates via [`publish_tools()`](src/transport/server/mod.rs:638) and related methods -- client authorization via `allowed_public_keys` in [`NostrServerTransportConfig`](src/transport/server/mod.rs:36) -- capability exclusions via [`CapabilityExclusion`](src/core/types.rs:269) -- encryption negotiation and response mirroring via [`send_response()`](src/transport/server/mod.rs:350) -- session management and request routing inside [`event_loop()`](src/transport/server/mod.rs:838) +- Nostr relay connectivity via `NostrServerTransport::new()` +- public announcements via `announce()` +- publication of tools, resources, prompts, and resource templates +- client authorization via `allowed_public_keys` in `NostrServerTransportConfig` +- capability exclusions via `CapabilityExclusion` +- encryption negotiation and response mirroring via `send_response()` +- session management and request routing inside the server event loop ## Configuration fields that matter first -Start with these fields in [`NostrServerTransportConfig`](src/transport/server/mod.rs:36): +Start with these fields in `NostrServerTransportConfig`: - `relay_urls`: relays the server will publish to and listen on - `is_announced_server`: whether the server should participate in public discovery @@ -124,11 +135,11 @@ Start with these fields in [`NostrServerTransportConfig`](src/transport/server/m Use this page's approach when you are writing a new Rust MCP server. -Use [`gateway.md`](docs/gateway.md) when you already have a request loop or existing local MCP service abstraction and want a thinner bridge. +Use the gateway guide when you already have a request loop or existing local MCP service abstraction and want a thinner bridge. ## Behavioral notes -- The `rmcp` server handshake begins through [`serve_server()`](rust-sdk/crates/rmcp/src/service/server.rs:114). -- `rmcp` accepts pre-init ping and enters the main loop immediately after sending initialize result, as shown in [`rust-sdk/crates/rmcp/src/service/server.rs:170`](rust-sdk/crates/rmcp/src/service/server.rs:170) and [`rust-sdk/crates/rmcp/src/service/server.rs:250`](rust-sdk/crates/rmcp/src/service/server.rs:250). -- ContextVM response routing depends on request event ids and is tested in [`src/rmcp_transport/pipeline_tests.rs:213`](src/rmcp_transport/pipeline_tests.rs:213). -- Encryption mirroring and announcement behavior are covered by [`tests/transport_integration.rs`](tests/transport_integration.rs). +- The `rmcp` server handshake follows the normal `serve_server()` flow. +- `rmcp` accepts pre-init ping and enters the main loop immediately after initialization completes. +- ContextVM response routing depends on request event ids. +- Encryption mirroring and announcement behavior are covered by the integration tests. diff --git a/docs/transports.md b/docs/transports.md index 8c6cd37..193a911 100644 --- a/docs/transports.md +++ b/docs/transports.md @@ -2,10 +2,10 @@ Use this page when you want to understand the transport layer itself. -If you are building a normal native server or client, start with [`server-transport.md`](docs/server-transport.md) or [`client-transport.md`](docs/client-transport.md) first. +If you are building a normal native server or client, start with the dedicated native server or native client guide first. -- [`NostrClientTransport`](src/transport/client/mod.rs:69): client-side direct transport -- [`NostrServerTransport`](src/transport/server/mod.rs:87): server-side direct transport +- `NostrClientTransport`: client-side direct transport +- `NostrServerTransport`: server-side direct transport ## Why use the transport layer directly @@ -16,6 +16,19 @@ Use transports directly when you need to: - tune authorization and session behavior - embed the transport in higher-level abstractions +## Signer choice + +All transport constructors accept an existing signer, not just a newly generated one. + +- Use `generate()` for temporary identities in examples, tests, and short-lived sessions. +- Use `from_sk()` when you need a stable identity backed by a pre-existing hex or `nsec` private key. + +```rust +use contextvm_sdk::signer; + +let signer = signer::from_sk("")?; +``` + ## Low-level client transport example ```rust @@ -111,17 +124,17 @@ It manages: - multi-client session state - request route storage - authorization via `allowed_public_keys` -- allowlist bypasses via [`CapabilityExclusion`](src/core/types.rs:269) +- allowlist bypasses via `CapabilityExclusion` - announcement publication - encryption negotiation and response mirroring -Those behaviors are visible in the fields of [`NostrServerTransport`](src/transport/server/mod.rs:87) and are exercised heavily in [`tests/transport_integration.rs`](tests/transport_integration.rs). +Those behaviors are part of the server transport implementation and are exercised heavily by the integration tests. ## What the server receives -Incoming traffic is delivered as [`IncomingRequest`](src/transport/server/mod.rs:113), which includes: +Incoming traffic is delivered as `IncomingRequest`, which includes: -- the parsed [`JsonRpcMessage`](src/core/types.rs:146) +- the parsed `JsonRpcMessage` - the client pubkey - the original Nostr request event id - whether the incoming message was encrypted From 938a5bec9f762b340b177a55b5cbd50cf158ca07 Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 7 May 2026 21:33:24 +0530 Subject: [PATCH 069/116] chore: add crates.io publishing metadata, CHANGELOG, remove tracing-subscriber from library --- CHANGELOG.md | 32 +++++ Cargo.toml | 18 ++- examples/gateway.rs | 27 +--- examples/proxy.rs | 40 +----- src/gateway/mod.rs | 1 - src/lib.rs | 2 - src/proxy/mod.rs | 1 - src/transport/client/mod.rs | 15 --- src/transport/server/mod.rs | 15 --- src/util/mod.rs | 1 - src/util/tracing_setup.rs | 259 ------------------------------------ 11 files changed, 58 insertions(+), 353 deletions(-) create mode 100644 CHANGELOG.md delete mode 100644 src/util/mod.rs delete mode 100644 src/util/tracing_setup.rs diff --git a/CHANGELOG.md b/CHANGELOG.md new file mode 100644 index 0000000..694916f --- /dev/null +++ b/CHANGELOG.md @@ -0,0 +1,32 @@ +# Changelog + +## [0.1.0] - 2026-05-07 + +### Added + +- Core transport layer: `NostrClientTransport` and `NostrServerTransport` over NIP-59 gift wraps +- Gateway and Proxy high-level APIs for bridging MCP over Nostr +- Discovery API: `discover_servers`, `discover_tools`, `discover_resources`, `discover_prompts`, `discover_resource_templates` +- CEP-6: server announcement publishing and querying (kinds 11316–11320) +- CEP-19: ephemeral gift wraps (kind 21059) with `GiftWrapMode` negotiation on both client and server +- CEP-35: stateless session discovery, tag composition, and capability learning +- LRU-bounded session store with configurable capacity (default 1000 sessions) and TTL expiry +- Multi-client support in `NostrServerWorker` (removed single-peer barrier) +- Direct rmcp transport adapters via `into_rmcp_transport()` for native `ContextVM` services +- `CancellationToken`-based graceful shutdown on `close()` +- TTL sweep for client and server correlation stores to prevent pending-request leaks +- `MockRelayPool` for deterministic offline testing +- Builder pattern for all transport and worker configuration structs +- Four examples: gateway, proxy, discovery, and rmcp integration test + +### Fixed + +- Single-peer barrier in RMCP worker rejected concurrent clients (#60) +- Pending-request leak: correlation store entries never expired by TTL (#61) +- Event loop tasks not cancelled on `close()`, causing resource leaks (#63) +- `RecvError::Lagged` killing event loop under high relay throughput (#68) +- Client race condition: responses lost when publish completed before correlation registration (#55) +- Uncorrelated responses (missing `e` tag) forwarded to consumer instead of dropped (#55) +- Non-atomic `send_response` behavior in server transport (#48) +- Unbounded LRU cache initialization with zero capacity (#50) +- Announced servers not sending JSON-RPC `-32000 Unauthorized` error for disallowed clients (#53) diff --git a/Cargo.toml b/Cargo.toml index fe6c0ee..7abf096 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -2,9 +2,15 @@ name = "contextvm-sdk" version = "0.1.0" edition = "2021" +rust-version = "1.70" description = "Rust SDK for the ContextVM protocol — MCP over Nostr" license = "MIT" -repository = "https://github.com/k0sti/rust-contextvm-sdk" +readme = "README.md" +repository = "https://github.com/ContextVM/rs-sdk" +homepage = "https://contextvm.org" +documentation = "https://docs.rs/contextvm-sdk" +keywords = ["nostr", "mcp", "model-context-protocol", "decentralized", "ai"] +categories = ["network-programming", "api-bindings", "asynchronous"] [dependencies] # Async runtime @@ -23,7 +29,6 @@ nostr-sdk = { version = "0.43", features = ["nip59"] } # Logging tracing = "0.1" -tracing-subscriber = { version = "0.3", features = ["env-filter"] } # Optional MCP integration (Rust equivalent to TS @modelcontextprotocol/sdk) rmcp = { version = "0.16.0", features = ["server", "client", "macros", "transport-worker"], optional = true } @@ -43,7 +48,16 @@ rmcp = ["dep:rmcp"] name = "rmcp_integration_test" required-features = ["rmcp"] +[[example]] +name = "native_echo_server" +required-features = ["rmcp"] + +[[example]] +name = "native_echo_client" +required-features = ["rmcp"] + [dev-dependencies] tokio-test = "0.4" anyhow = "1" schemars = "0.8" +tracing-subscriber = { version = "0.3", features = ["env-filter"] } diff --git a/examples/gateway.rs b/examples/gateway.rs index 3a3bef9..efe8500 100644 --- a/examples/gateway.rs +++ b/examples/gateway.rs @@ -3,7 +3,7 @@ //! This demonstrates how to create a ContextVM gateway that receives //! MCP requests over Nostr and responds to them. //! -//! Usage: cargo run --example gateway -- [--log-file ] +//! Usage: cargo run --example gateway use contextvm_sdk::core::types::*; use contextvm_sdk::gateway::{GatewayConfig, NostrMCPGateway}; @@ -12,41 +12,20 @@ use contextvm_sdk::transport::server::NostrServerTransportConfig; #[tokio::main] async fn main() -> contextvm_sdk::Result<()> { - let args: Vec = std::env::args().skip(1).collect(); - let mut log_file_path: Option = None; - - let mut index = 0; - while index < args.len() { - match args[index].as_str() { - "--log-file" => { - index += 1; - let Some(path) = args.get(index) else { - panic!("Usage: gateway [--log-file ]"); - }; - log_file_path = Some(path.clone()); - } - other => { - panic!("Unknown argument: {other}. Usage: gateway [--log-file ]"); - } - } - index += 1; - } + tracing_subscriber::fmt::init(); // Generate ephemeral keys for this session let keys = signer::generate(); println!("Server pubkey: {}", keys.public_key().to_hex()); // Configure the gateway - let mut nostr_config = NostrServerTransportConfig::default() + let nostr_config = NostrServerTransportConfig::default() .with_server_info( ServerInfo::default() .with_name("Echo Server") .with_about("A simple echo tool exposed via ContextVM"), ) .with_announced_server(true); - if let Some(path) = log_file_path { - nostr_config = nostr_config.with_log_file_path(path); - } let config = GatewayConfig::new(nostr_config); let mut gateway = NostrMCPGateway::new(keys, config).await?; diff --git a/examples/proxy.rs b/examples/proxy.rs index 9f9e1c0..4aea3e3 100644 --- a/examples/proxy.rs +++ b/examples/proxy.rs @@ -1,52 +1,26 @@ //! Example: Connect to a remote MCP server via Nostr and call tools/list. //! -//! Usage: cargo run --example proxy -- [--log-file ] +//! Usage: cargo run --example proxy -- use contextvm_sdk::core::types::*; use contextvm_sdk::proxy::{NostrMCPProxy, ProxyConfig}; use contextvm_sdk::signer; use contextvm_sdk::transport::client::NostrClientTransportConfig; + #[tokio::main] async fn main() -> contextvm_sdk::Result<()> { - let args: Vec = std::env::args().skip(1).collect(); - let mut server_pubkey_hex: Option = None; - let mut log_file_path: Option = None; - - let mut index = 0; - while index < args.len() { - match args[index].as_str() { - "--log-file" => { - index += 1; - let Some(path) = args.get(index) else { - panic!("Usage: proxy [--log-file ]"); - }; - log_file_path = Some(path.clone()); - } - value => { - if server_pubkey_hex.is_none() { - server_pubkey_hex = Some(value.to_string()); - } else { - panic!( - "Unknown argument: {value}. Usage: proxy [--log-file ]" - ); - } - } - } - index += 1; - } + tracing_subscriber::fmt::init(); - let server_pubkey_hex = - server_pubkey_hex.expect("Usage: proxy [--log-file ]"); + let server_pubkey_hex = std::env::args() + .nth(1) + .expect("Usage: proxy "); let keys = signer::generate(); println!("Client pubkey: {}", keys.public_key().to_hex()); - let mut nostr_config = NostrClientTransportConfig::default() + let nostr_config = NostrClientTransportConfig::default() .with_server_pubkey(server_pubkey_hex) .with_encryption_mode(EncryptionMode::Optional); - if let Some(path) = log_file_path { - nostr_config = nostr_config.with_log_file_path(path); - } let config = ProxyConfig::new(nostr_config); let mut proxy = NostrMCPProxy::new(keys, config).await?; diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index 825fa46..e4bba91 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -138,7 +138,6 @@ mod tests { cleanup_interval: Duration::from_secs(120), session_timeout: Duration::from_secs(600), request_timeout: Duration::from_secs(60), - log_file_path: None, }; let config = GatewayConfig { nostr_config }; diff --git a/src/lib.rs b/src/lib.rs index 575e356..7615c7e 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -47,8 +47,6 @@ pub mod transport; #[cfg(feature = "rmcp")] pub mod rmcp_transport; -mod util; - // Re-export commonly used types pub use core::error::{Error, Result}; pub use core::types::{ diff --git a/src/proxy/mod.rs b/src/proxy/mod.rs index 9aa97ae..4833127 100644 --- a/src/proxy/mod.rs +++ b/src/proxy/mod.rs @@ -121,7 +121,6 @@ mod tests { gift_wrap_mode: GiftWrapMode::Optional, is_stateless: true, timeout: Duration::from_secs(60), - log_file_path: None, }; let config = ProxyConfig { nostr_config }; diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index 4d7ff89..31f80c7 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -26,8 +26,6 @@ use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; use crate::transport::discovery_tags::{parse_discovered_peer_capabilities, PeerCapabilities}; -use crate::util::tracing_setup; - const LOG_TARGET: &str = "contextvm_sdk::transport::client"; /// Configuration for the client transport. @@ -49,8 +47,6 @@ pub struct NostrClientTransportConfig { /// This prevents leaks -- rmcp owns actual request timeout and cancellation. /// Keep this value above your rmcp request timeout to avoid premature cleanup. pub timeout: Duration, - /// Optional log file path. Logs always go to stdout and are also appended here when set. - pub log_file_path: Option, } impl Default for NostrClientTransportConfig { @@ -62,7 +58,6 @@ impl Default for NostrClientTransportConfig { gift_wrap_mode: GiftWrapMode::Optional, is_stateless: false, timeout: Duration::from_secs(30), - log_file_path: None, } } } @@ -98,11 +93,6 @@ impl NostrClientTransportConfig { self.timeout = timeout; self } - /// Set the log file path. - pub fn with_log_file_path(mut self, path: impl Into) -> Self { - self.log_file_path = Some(path.into()); - self - } } /// Client-side Nostr transport for sending MCP requests and receiving responses. @@ -139,8 +129,6 @@ impl NostrClientTransport { where T: IntoNostrSigner, { - tracing_setup::init_tracer(config.log_file_path.as_deref())?; - let server_pubkey = PublicKey::from_hex(&config.server_pubkey).map_err(|error| { tracing::error!( target: LOG_TARGET, @@ -198,8 +186,6 @@ impl NostrClientTransport { config: NostrClientTransportConfig, relay_pool: Arc, ) -> Result { - tracing_setup::init_tracer(config.log_file_path.as_deref())?; - let server_pubkey = PublicKey::from_hex(&config.server_pubkey).map_err(|error| { tracing::error!( target: LOG_TARGET, @@ -870,7 +856,6 @@ mod tests { assert_eq!(config.gift_wrap_mode, GiftWrapMode::Optional); assert!(!config.is_stateless); assert_eq!(config.timeout, Duration::from_secs(30)); - assert!(config.log_file_path.is_none()); } #[test] diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 0082be1..ba9f6c7 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -29,8 +29,6 @@ use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; use crate::transport::discovery_tags::learn_peer_capabilities; -use crate::util::tracing_setup; - const LOG_TARGET: &str = "contextvm_sdk::transport::server"; /// Configuration for the server transport. @@ -62,8 +60,6 @@ pub struct NostrServerTransportConfig { /// This prevents leaks -- rmcp owns actual request timeout and cancellation. /// Keep this value above your rmcp request timeout to avoid premature cleanup. pub request_timeout: Duration, - /// Optional log file path. Logs always go to stdout and are also appended here when set. - pub log_file_path: Option, } impl Default for NostrServerTransportConfig { @@ -80,7 +76,6 @@ impl Default for NostrServerTransportConfig { cleanup_interval: Duration::from_secs(60), session_timeout: Duration::from_secs(300), request_timeout: Duration::from_secs(60), - log_file_path: None, } } } @@ -170,11 +165,6 @@ impl NostrServerTransportConfig { self.request_timeout = timeout; self } - /// Set the log file path. - pub fn with_log_file_path(mut self, path: impl Into) -> Self { - self.log_file_path = Some(path.into()); - self - } } /// An incoming MCP request with metadata for routing the response. @@ -197,8 +187,6 @@ impl NostrServerTransport { where T: IntoNostrSigner, { - tracing_setup::init_tracer(config.log_file_path.as_deref())?; - let relay_pool: Arc = Arc::new(RelayPool::new(signer).await.map_err(|error| { tracing::error!( @@ -246,8 +234,6 @@ impl NostrServerTransport { config: NostrServerTransportConfig, relay_pool: Arc, ) -> Result { - tracing_setup::init_tracer(config.log_file_path.as_deref())?; - let (tx, rx) = tokio::sync::mpsc::unbounded_channel(); let seen_gift_wrap_ids = Arc::new(Mutex::new(LruCache::new( NonZeroUsize::new(DEFAULT_LRU_SIZE).expect("DEFAULT_LRU_SIZE must be non-zero"), @@ -1672,7 +1658,6 @@ mod tests { assert_eq!(config.session_timeout, Duration::from_secs(300)); assert_eq!(config.request_timeout, Duration::from_secs(60)); assert!(config.server_info.is_none()); - assert!(config.log_file_path.is_none()); } // ── CEP-19 helper logic ────────────────────────────────────── diff --git a/src/util/mod.rs b/src/util/mod.rs deleted file mode 100644 index c5eb5d2..0000000 --- a/src/util/mod.rs +++ /dev/null @@ -1 +0,0 @@ -pub mod tracing_setup; diff --git a/src/util/tracing_setup.rs b/src/util/tracing_setup.rs deleted file mode 100644 index 313bb5d..0000000 --- a/src/util/tracing_setup.rs +++ /dev/null @@ -1,259 +0,0 @@ -//! Internal tracing subscriber setup for ContextVM transports. - -use std::fmt; -use std::fs::{File, OpenOptions}; -use std::io::{self, Write}; -use std::path::{Path, PathBuf}; -use std::sync::{Mutex, OnceLock}; - -use tracing::Event; -use tracing_subscriber::fmt::format::Writer; -use tracing_subscriber::fmt::writer::MakeWriter; -use tracing_subscriber::fmt::{FmtContext, FormatEvent, FormatFields}; -use tracing_subscriber::layer::{Layer, SubscriberExt}; -use tracing_subscriber::registry::LookupSpan; -use tracing_subscriber::{EnvFilter, Registry}; - -use crate::core::error::{Error, Result}; - -static TRACING_SETUP_LOCK: OnceLock> = OnceLock::new(); -static TRACING_INITIALIZED: OnceLock<()> = OnceLock::new(); -static LOG_DESTINATION: OnceLock> = OnceLock::new(); - -fn tracing_setup_lock() -> &'static Mutex<()> { - TRACING_SETUP_LOCK.get_or_init(|| Mutex::new(())) -} - -fn log_destination() -> &'static Mutex { - LOG_DESTINATION.get_or_init(|| Mutex::new(LogDestination::default())) -} - -pub(crate) fn init_tracer(log_file_path: Option<&str>) -> Result<()> { - let _guard = tracing_setup_lock() - .lock() - .map_err(|_| Error::Other("failed to acquire tracing setup lock".to_string()))?; - - configure_file_output(log_file_path)?; - - if TRACING_INITIALIZED.get().is_some() { - return Ok(()); - } - - let subscriber = Registry::default().with( - tracing_subscriber::fmt::layer() - .with_ansi(false) - .with_writer(ContextVmMakeWriter) - .event_format(ContextVmEventFormatter) - .with_filter(build_env_filter()), - ); - - match tracing::subscriber::set_global_default(subscriber) { - Ok(()) => { - let _ = TRACING_INITIALIZED.set(()); - Ok(()) - } - Err(error) => { - let text = error.to_string(); - if text.contains("global default trace dispatcher has already been set") { - let _ = TRACING_INITIALIZED.set(()); - Ok(()) - } else { - Err(Error::Other(format!( - "failed to initialize tracing subscriber: {text}" - ))) - } - } - } -} - -fn configure_file_output(log_file_path: Option<&str>) -> Result<()> { - let Some(path) = normalize_log_file_path(log_file_path) else { - return Ok(()); - }; - - ensure_parent_exists(&path)?; - - let file = OpenOptions::new() - .create(true) - .append(true) - .open(&path) - .map_err(|error| { - Error::Other(format!( - "failed to open log file {}: {error}", - path.display() - )) - })?; - - let mut destination = log_destination() - .lock() - .map_err(|_| Error::Other("failed to acquire log destination lock".to_string()))?; - destination.file = Some(file); - - Ok(()) -} - -fn normalize_log_file_path(log_file_path: Option<&str>) -> Option { - let trimmed = log_file_path?.trim(); - if trimmed.is_empty() { - None - } else { - Some(PathBuf::from(trimmed)) - } -} - -fn ensure_parent_exists(path: &Path) -> Result<()> { - if let Some(parent) = path.parent() { - if !parent.as_os_str().is_empty() { - std::fs::create_dir_all(parent).map_err(|error| { - Error::Other(format!( - "failed to create log directory {}: {error}", - parent.display() - )) - })?; - } - } - - Ok(()) -} - -fn build_env_filter() -> EnvFilter { - EnvFilter::try_from_default_env() - .unwrap_or_else(|_| EnvFilter::new("contextvm_sdk=info,rmcp=warn")) -} - -#[derive(Default)] -struct LogDestination { - file: Option, -} - -#[derive(Clone, Copy)] -struct ContextVmMakeWriter; - -impl<'a> MakeWriter<'a> for ContextVmMakeWriter { - type Writer = ContextVmWriter; - - fn make_writer(&'a self) -> Self::Writer { - ContextVmWriter { - stdout: io::stdout(), - } - } -} - -struct ContextVmWriter { - stdout: io::Stdout, -} - -impl Write for ContextVmWriter { - fn write(&mut self, buf: &[u8]) -> io::Result { - self.stdout.write_all(buf)?; - - if let Ok(mut destination) = log_destination().lock() { - if let Some(file) = destination.file.as_mut() { - let _ = file.write_all(buf); - } - } - - Ok(buf.len()) - } - - fn flush(&mut self) -> io::Result<()> { - self.stdout.flush()?; - - if let Ok(mut destination) = log_destination().lock() { - if let Some(file) = destination.file.as_mut() { - let _ = file.flush(); - } - } - - Ok(()) - } -} - -#[derive(Default)] -struct MessageVisitor { - message: Option, - extra_fields: Vec<(String, String)>, -} - -impl MessageVisitor { - fn record_field(&mut self, name: &str, value: String) { - if name == "message" { - self.message = Some(value); - } else { - self.extra_fields.push((name.to_string(), value)); - } - } -} - -impl tracing::field::Visit for MessageVisitor { - fn record_i64(&mut self, field: &tracing::field::Field, value: i64) { - self.record_field(field.name(), value.to_string()); - } - - fn record_u64(&mut self, field: &tracing::field::Field, value: u64) { - self.record_field(field.name(), value.to_string()); - } - - fn record_bool(&mut self, field: &tracing::field::Field, value: bool) { - self.record_field(field.name(), value.to_string()); - } - - fn record_str(&mut self, field: &tracing::field::Field, value: &str) { - self.record_field(field.name(), value.to_string()); - } - - fn record_error( - &mut self, - field: &tracing::field::Field, - value: &(dyn std::error::Error + 'static), - ) { - self.record_field(field.name(), value.to_string()); - } - - fn record_debug(&mut self, field: &tracing::field::Field, value: &dyn fmt::Debug) { - self.record_field(field.name(), format!("{value:?}")); - } -} - -struct ContextVmEventFormatter; - -impl FormatEvent for ContextVmEventFormatter -where - S: tracing::Subscriber + for<'span> LookupSpan<'span>, - N: for<'writer> FormatFields<'writer> + 'static, -{ - fn format_event( - &self, - _ctx: &FmtContext<'_, S, N>, - mut writer: Writer<'_>, - event: &Event<'_>, - ) -> fmt::Result { - let mut visitor = MessageVisitor::default(); - event.record(&mut visitor); - - let metadata = event.metadata(); - let timestamp = unix_timestamp(); - let level = metadata.level().to_string().to_lowercase(); - let message = visitor.message.unwrap_or_default(); - - write!( - writer, - "{timestamp}:{level}::{}:{message}", - metadata.target() - )?; - - for (key, value) in visitor.extra_fields { - write!(writer, " {key}={value}")?; - } - - writeln!(writer) - } -} - -fn unix_timestamp() -> String { - use std::time::{SystemTime, UNIX_EPOCH}; - - let now = SystemTime::now(); - let duration = now.duration_since(UNIX_EPOCH).unwrap_or_default(); - format!("{}.{:03}", duration.as_secs(), duration.subsec_millis()) -} From f33ef68b8f57f010c6768df203f74007ad76f983 Mon Sep 17 00:00:00 2001 From: ContextVM Date: Thu, 7 May 2026 21:09:52 +0200 Subject: [PATCH 070/116] fix(rmcp): bridge stateless CEP-35 requests into rmcp lifecycle --- src/rmcp_transport/pipeline_tests.rs | 158 ++++++++++++++++++++++++++- src/rmcp_transport/worker.rs | 148 +++++++++++++++++++++++-- src/transport/server/mod.rs | 134 +++++++++++++++++++++++ 3 files changed, 432 insertions(+), 8 deletions(-) diff --git a/src/rmcp_transport/pipeline_tests.rs b/src/rmcp_transport/pipeline_tests.rs index a036799..ff4844e 100644 --- a/src/rmcp_transport/pipeline_tests.rs +++ b/src/rmcp_transport/pipeline_tests.rs @@ -14,18 +14,87 @@ #[cfg(all(test, feature = "rmcp"))] mod tests { + use std::sync::Arc; + use rmcp::model::{ - ClientJsonRpcMessage, ClientResult, RequestId, ServerJsonRpcMessage, ServerResult, + CallToolRequestParams, CallToolResult, ClientJsonRpcMessage, ClientResult, ErrorData, + Implementation, ProtocolVersion, RequestId, ServerCapabilities, ServerInfo, + ServerJsonRpcMessage, ServerResult, + }; + use rmcp::{ + handler::server::{router::tool::ToolRouter, wrapper::Parameters}, + schemars, tool, tool_handler, tool_router, ClientHandler, ServerHandler, ServiceExt, }; use crate::core::serializers; + use crate::core::types::{EncryptionMode, GiftWrapMode}; use crate::core::types::{ JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, }; + use crate::relay::mock::MockRelayPool; + use crate::relay::RelayPoolTrait; use crate::rmcp_transport::convert::{ internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, rmcp_server_tx_to_internal, }; + use crate::transport::{ + client::{NostrClientTransport, NostrClientTransportConfig}, + server::{NostrServerTransport, NostrServerTransportConfig}, + }; + + #[derive(Debug, serde::Deserialize, schemars::JsonSchema)] + struct EchoParams { + message: String, + } + + #[derive(Clone)] + struct StatelessTestServer { + tool_router: ToolRouter, + } + + impl StatelessTestServer { + fn new() -> Self { + Self { + tool_router: Self::tool_router(), + } + } + } + + #[tool_router] + impl StatelessTestServer { + #[tool(description = "Echo a message back unchanged")] + async fn echo( + &self, + Parameters(EchoParams { message }): Parameters, + ) -> Result { + Ok(CallToolResult::success(vec![rmcp::model::Content::text( + format!("Echo: {message}"), + )])) + } + } + + #[tool_handler] + impl ServerHandler for StatelessTestServer { + fn get_info(&self) -> ServerInfo { + ServerInfo { + protocol_version: ProtocolVersion::LATEST, + capabilities: ServerCapabilities::builder().enable_tools().build(), + server_info: Implementation { + name: "stateless-test-server".to_string(), + title: Some("Stateless Test Server".to_string()), + version: "0.1.0".to_string(), + description: Some("Stateless rmcp regression test server".to_string()), + icons: None, + website_url: None, + }, + instructions: Some("Use the echo tool".to_string()), + } + } + } + + #[derive(Clone, Default)] + struct StatelessTestClient; + impl ClientHandler for StatelessTestClient {} // ── Layer 1: Nostr event content → JsonRpcMessage ────────────────────── @@ -324,6 +393,93 @@ mod tests { } } + #[tokio::test] + async fn stateless_rmcp_roundtrip_over_mock_relay_preserves_correlation() { + let (server_pool, client_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool + .public_key() + .await + .expect("server mock relay pubkey") + .to_hex(); + + let server_transport = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_relay_urls(vec!["mock://relay".to_string()]) + .with_encryption_mode(EncryptionMode::Disabled) + .with_gift_wrap_mode(GiftWrapMode::Optional), + Arc::new(server_pool), + ) + .await + .expect("server transport"); + + let server_task = tokio::spawn(async move { + StatelessTestServer::new() + .serve(server_transport) + .await + .expect("server should start") + .waiting() + .await + .expect("server should keep running until aborted"); + }); + + let client_transport = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["mock://relay".to_string()]) + .with_server_pubkey(server_pubkey) + .with_encryption_mode(EncryptionMode::Disabled) + .with_gift_wrap_mode(GiftWrapMode::Optional) + .with_stateless(true), + Arc::new(client_pool), + ) + .await + .expect("client transport"); + + let client = StatelessTestClient + .serve(client_transport) + .await + .expect("stateless client should start"); + + let peer_info = client + .peer_info() + .expect("peer info from emulated initialize"); + assert_eq!(peer_info.server_info.name, "Emulated-Stateless-Server"); + + let tools = client + .list_all_tools() + .await + .expect("tools/list should succeed"); + assert!( + tools.iter().any(|tool| tool.name == "echo"), + "expected echo tool from server" + ); + + let result = client + .call_tool(CallToolRequestParams { + name: "echo".into(), + arguments: serde_json::from_value(serde_json::json!({ + "message": "hello from stateless test" + })) + .ok(), + meta: None, + task: None, + }) + .await + .expect("tools/call should succeed"); + + let echoed = result + .content + .iter() + .find_map(|content| match &content.raw { + rmcp::model::RawContent::Text(text) => Some(text.text.clone()), + _ => None, + }) + .expect("echo response text"); + assert_eq!(echoed, "Echo: hello from stateless test"); + + client.cancel().await.expect("client cancel"); + server_task.abort(); + } + // ── Helper ────────────────────────────────────────────────────────────── fn make_request( diff --git a/src/rmcp_transport/worker.rs b/src/rmcp_transport/worker.rs index 4263c8d..1e2c642 100644 --- a/src/rmcp_transport/worker.rs +++ b/src/rmcp_transport/worker.rs @@ -15,6 +15,7 @@ use super::convert::{ }; const LOG_TARGET: &str = "contextvm_sdk::rmcp_transport::worker"; +const STATELESS_SYNTHETIC_EVENT_ID: &str = "contextvm-stateless-init"; /// rmcp server worker wrapper for ContextVM Nostr server transport. /// @@ -96,19 +97,50 @@ impl Worker for NostrServerWorker { .. } = incoming; - // Rewrite the JSON-RPC request ID to the Nostr event_id. - // Event IDs are globally unique (SHA-256), so no collision - // across clients. The transport's event-route store maps - // event_id → (client_pubkey, original_request_id) and - // restores the original ID in `send_response`. - if let JsonRpcMessage::Request(ref mut req) = message { - req.id = serde_json::json!(event_id); + let is_synthetic_initialize = matches!( + &message, + JsonRpcMessage::Request(req) + if req.method == "initialize" + && req.id == serde_json::json!(STATELESS_SYNTHETIC_EVENT_ID) + ); + + // Rewrite real wire requests to the Nostr event_id. + // Synthetic stateless bootstrap messages must retain their + // sentinel ID so their responses can be dropped before they + // ever touch transport correlation. + if !is_synthetic_initialize { + if let JsonRpcMessage::Request(ref mut req) = message { + req.id = serde_json::json!(event_id); + } } if let Some(rmcp_msg) = internal_to_rmcp_server_rx(&message) { if let Err(reason) = context.send_to_handler(rmcp_msg).await { break reason; } + + if is_synthetic_initialize { + let initialized = JsonRpcMessage::Notification( + crate::core::types::JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/initialized".to_string(), + params: None, + }, + ); + + let Some(rmcp_initialized) = internal_to_rmcp_server_rx(&initialized) else { + break WorkerQuitReason::fatal( + Self::Error::Validation( + "failed converting synthetic initialized notification to rmcp format".to_string(), + ), + "converting synthetic initialized notification", + ); + }; + + if let Err(reason) = context.send_to_handler(rmcp_initialized).await { + break reason; + } + } } else { tracing::warn!( target: LOG_TARGET, @@ -272,6 +304,15 @@ impl NostrServerWorker { ) })?; + if event_id == STATELESS_SYNTHETIC_EVENT_ID { + tracing::debug!( + target: LOG_TARGET, + event_id = %event_id, + "Dropping synthetic initialize response before wire transport" + ); + return Ok(()); + } + self.transport .send_response(&event_id, JsonRpcMessage::Response(resp)) .await @@ -283,6 +324,15 @@ impl NostrServerWorker { ) })?; + if event_id == STATELESS_SYNTHETIC_EVENT_ID { + tracing::debug!( + target: LOG_TARGET, + event_id = %event_id, + "Dropping synthetic initialize error before wire transport" + ); + return Ok(()); + } + self.transport .send_response(&event_id, JsonRpcMessage::ErrorResponse(resp)) .await @@ -298,3 +348,87 @@ impl NostrServerWorker { } } } + +#[cfg(test)] +mod tests { + use super::*; + use crate::core::types::{JsonRpcRequest, JsonRpcResponse}; + + #[test] + fn test_synthetic_initialize_keeps_sentinel_id() { + let mut message = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(STATELESS_SYNTHETIC_EVENT_ID), + method: "initialize".to_string(), + params: Some(serde_json::json!({ + "protocolVersion": crate::core::constants::mcp_protocol_version(), + })), + }); + + let is_synthetic_initialize = matches!( + &message, + JsonRpcMessage::Request(req) + if req.method == "initialize" + && req.id == serde_json::json!(STATELESS_SYNTHETIC_EVENT_ID) + ); + + if !is_synthetic_initialize { + if let JsonRpcMessage::Request(ref mut req) = message { + req.id = serde_json::json!("real-event-id"); + } + } + + match message { + JsonRpcMessage::Request(req) => { + assert_eq!(req.id, serde_json::json!(STATELESS_SYNTHETIC_EVENT_ID)); + } + other => panic!("expected request, got {other:?}"), + } + } + + #[test] + fn test_real_request_is_rewritten_to_event_id() { + let mut message = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "tools/list".to_string(), + params: Some(serde_json::json!({})), + }); + + let is_synthetic_initialize = matches!( + &message, + JsonRpcMessage::Request(req) + if req.method == "initialize" + && req.id == serde_json::json!(STATELESS_SYNTHETIC_EVENT_ID) + ); + + if !is_synthetic_initialize { + if let JsonRpcMessage::Request(ref mut req) = message { + req.id = serde_json::json!("real-event-id"); + } + } + + match message { + JsonRpcMessage::Request(req) => { + assert_eq!(req.id, serde_json::json!("real-event-id")); + } + other => panic!("expected request, got {other:?}"), + } + } + + #[test] + fn test_synthetic_initialize_response_uses_sentinel_for_drop() { + let message = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(STATELESS_SYNTHETIC_EVENT_ID), + result: serde_json::json!({}), + }); + + match message { + JsonRpcMessage::Response(resp) => { + assert_eq!(resp.id.as_str(), Some(STATELESS_SYNTHETIC_EVENT_ID)); + } + other => panic!("expected response, got {other:?}"), + } + } +} diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index ba9f6c7..f60e6f5 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -919,6 +919,54 @@ impl NostrServerTransport { }) } + #[cfg(feature = "rmcp")] + fn synthetic_initialize_message() -> JsonRpcMessage { + JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("contextvm-stateless-init"), + method: "initialize".to_string(), + params: Some(serde_json::json!({ + "protocolVersion": crate::core::constants::mcp_protocol_version(), + "capabilities": {}, + "clientInfo": { + "name": "contextvm-stateless-client", + "version": "0.1.0" + } + })), + }) + } + + #[cfg(not(feature = "rmcp"))] + fn synthetic_initialize_message() -> JsonRpcMessage { + JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("contextvm-stateless-init"), + method: "initialize".to_string(), + params: Some(serde_json::json!({ + "protocolVersion": crate::core::constants::mcp_protocol_version(), + "capabilities": {}, + "clientInfo": { + "name": "contextvm-stateless-client", + "version": "0.1.0" + } + })), + }) + } + + fn should_inject_synthetic_initialize( + session: &ClientSession, + mcp_msg: &JsonRpcMessage, + ) -> bool { + if session.is_initialized { + return false; + } + + matches!( + mcp_msg, + JsonRpcMessage::Request(req) if req.method != "initialize" + ) + } + #[allow(clippy::too_many_arguments)] async fn event_loop( relay_pool: Arc, @@ -1225,6 +1273,12 @@ impl NostrServerTransport { session.supports_oversized_transfer |= oversized_enabled && discovered.supports_oversized_transfer; + let should_inject_initialize = + Self::should_inject_synthetic_initialize(session, &mcp_msg); + if should_inject_initialize { + session.is_initialized = true; + } + // Track request for correlation if let JsonRpcMessage::Request(ref req) = mcp_msg { let original_id = req.id.clone(); @@ -1284,6 +1338,16 @@ impl NostrServerTransport { } } + // Forward a synthetic initialize first for stateless first-request sessions. + if should_inject_initialize { + let _ = tx.send(IncomingRequest { + message: Self::synthetic_initialize_message(), + client_pubkey: sender_pubkey.clone(), + event_id: event_id.clone(), + is_encrypted, + }); + } + // Forward to consumer let _ = tx.send(IncomingRequest { message: mcp_msg, @@ -1562,6 +1626,76 @@ mod tests { )); } + #[test] + fn test_should_inject_synthetic_initialize_for_first_non_initialize_request() { + let session = ClientSession::new(false); + let message = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "tools/list".to_string(), + params: Some(serde_json::json!({})), + }); + + assert!(NostrServerTransport::should_inject_synthetic_initialize( + &session, &message, + )); + } + + #[test] + fn test_should_not_inject_synthetic_initialize_for_real_initialize_request() { + let session = ClientSession::new(false); + let message = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: Some(serde_json::json!({})), + }); + + assert!(!NostrServerTransport::should_inject_synthetic_initialize( + &session, &message, + )); + } + + #[test] + fn test_should_not_inject_synthetic_initialize_after_session_initialized() { + let mut session = ClientSession::new(false); + session.is_initialized = true; + let message = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "tools/list".to_string(), + params: Some(serde_json::json!({})), + }); + + assert!(!NostrServerTransport::should_inject_synthetic_initialize( + &session, &message, + )); + } + + #[test] + fn test_synthetic_initialize_message_shape() { + let message = NostrServerTransport::synthetic_initialize_message(); + let JsonRpcMessage::Request(request) = message else { + panic!("expected request"); + }; + + assert_eq!(request.method, "initialize"); + assert_eq!(request.id, serde_json::json!("contextvm-stateless-init")); + + let params = request.params.expect("initialize params"); + assert_eq!( + params.get("protocolVersion").and_then(|v| v.as_str()), + Some(crate::core::constants::mcp_protocol_version()) + ); + assert_eq!( + params + .get("clientInfo") + .and_then(|v| v.get("name")) + .and_then(|v| v.as_str()), + Some("contextvm-stateless-client") + ); + } + #[test] fn test_method_excluded_without_name() { let exclusions = vec![CapabilityExclusion { From efe52eabf791fc130a0e3f3783d0f441e10c43f9 Mon Sep 17 00:00:00 2001 From: ContextVM Date: Thu, 7 May 2026 21:20:21 +0200 Subject: [PATCH 071/116] refactor(rmcp): move stateless client bootstrap logic from transport to worker Moves the synthetic initialize/initialized message injection logic from the NostrServerTransport to the NostrServerWorker. This better separates concerns by having the rmcp layer handle MCP protocol lifecycle while the transport layer focuses on Nostr-specific communication. Also adds a HashSet to track initialized clients per pubkey for proper bootstrap injection. --- src/rmcp_transport/worker.rs | 204 +++++++++++++++++++++++++---------- src/transport/server/mod.rs | 134 ----------------------- 2 files changed, 145 insertions(+), 193 deletions(-) diff --git a/src/rmcp_transport/worker.rs b/src/rmcp_transport/worker.rs index 1e2c642..023354f 100644 --- a/src/rmcp_transport/worker.rs +++ b/src/rmcp_transport/worker.rs @@ -4,10 +4,11 @@ //! transports to rmcp's worker abstraction. use crate::core::error::Result; -use crate::core::types::JsonRpcMessage; +use crate::core::types::{JsonRpcMessage, JsonRpcNotification, JsonRpcRequest}; use crate::transport::client::{NostrClientTransport, NostrClientTransportConfig}; use crate::transport::server::{NostrServerTransport, NostrServerTransportConfig}; use rmcp::transport::worker::{Worker, WorkerContext, WorkerQuitReason}; +use std::collections::HashSet; use super::convert::{ internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, @@ -17,6 +18,51 @@ use super::convert::{ const LOG_TARGET: &str = "contextvm_sdk::rmcp_transport::worker"; const STATELESS_SYNTHETIC_EVENT_ID: &str = "contextvm-stateless-init"; +fn synthetic_initialize_message() -> JsonRpcMessage { + JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(STATELESS_SYNTHETIC_EVENT_ID), + method: "initialize".to_string(), + params: Some(serde_json::json!({ + "protocolVersion": crate::core::constants::mcp_protocol_version(), + "capabilities": {}, + "clientInfo": { + "name": "contextvm-stateless-client", + "version": "0.1.0" + } + })), + }) +} + +fn synthetic_initialized_notification() -> JsonRpcMessage { + JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/initialized".to_string(), + params: None, + }) +} + +fn should_inject_stateless_bootstrap( + initialized_clients: &HashSet, + client_pubkey: &str, + message: &JsonRpcMessage, +) -> bool { + if initialized_clients.contains(client_pubkey) { + return false; + } + + matches!(message, JsonRpcMessage::Request(req) if req.method != "initialize") +} + +fn is_synthetic_initialize_message(message: &JsonRpcMessage) -> bool { + matches!( + message, + JsonRpcMessage::Request(req) + if req.method == "initialize" + && req.id == serde_json::json!(STATELESS_SYNTHETIC_EVENT_ID) + ) +} + /// rmcp server worker wrapper for ContextVM Nostr server transport. /// /// Multiplexes all connected clients through a single rmcp service instance. @@ -80,6 +126,7 @@ impl Worker for NostrServerWorker { })?; let cancellation_token = context.cancellation_token.clone(); + let mut initialized_clients = HashSet::new(); let quit_reason = loop { tokio::select! { @@ -94,23 +141,61 @@ impl Worker for NostrServerWorker { let crate::transport::server::IncomingRequest { mut message, event_id, + client_pubkey, .. } = incoming; - let is_synthetic_initialize = matches!( + let should_inject_bootstrap = should_inject_stateless_bootstrap( + &initialized_clients, + &client_pubkey, &message, - JsonRpcMessage::Request(req) - if req.method == "initialize" - && req.id == serde_json::json!(STATELESS_SYNTHETIC_EVENT_ID) ); + if should_inject_bootstrap { + let synthetic_init = synthetic_initialize_message(); + let Some(rmcp_init) = internal_to_rmcp_server_rx(&synthetic_init) else { + break WorkerQuitReason::fatal( + Self::Error::Validation( + "failed converting synthetic initialize request to rmcp format".to_string(), + ), + "converting synthetic initialize request", + ); + }; + + if let Err(reason) = context.send_to_handler(rmcp_init).await { + break reason; + } + + let initialized = synthetic_initialized_notification(); + let Some(rmcp_initialized) = internal_to_rmcp_server_rx(&initialized) else { + break WorkerQuitReason::fatal( + Self::Error::Validation( + "failed converting synthetic initialized notification to rmcp format".to_string(), + ), + "converting synthetic initialized notification", + ); + }; + + if let Err(reason) = context.send_to_handler(rmcp_initialized).await { + break reason; + } + + initialized_clients.insert(client_pubkey.clone()); + } + + if matches!(&message, JsonRpcMessage::Request(req) if req.method == "initialize") + || matches!(&message, JsonRpcMessage::Notification(n) if n.method == "notifications/initialized") + { + initialized_clients.insert(client_pubkey.clone()); + } + // Rewrite real wire requests to the Nostr event_id. // Synthetic stateless bootstrap messages must retain their // sentinel ID so their responses can be dropped before they // ever touch transport correlation. - if !is_synthetic_initialize { + if !is_synthetic_initialize_message(&message) { if let JsonRpcMessage::Request(ref mut req) = message { - req.id = serde_json::json!(event_id); + req.id = serde_json::json!(event_id); } } @@ -118,29 +203,6 @@ impl Worker for NostrServerWorker { if let Err(reason) = context.send_to_handler(rmcp_msg).await { break reason; } - - if is_synthetic_initialize { - let initialized = JsonRpcMessage::Notification( - crate::core::types::JsonRpcNotification { - jsonrpc: "2.0".to_string(), - method: "notifications/initialized".to_string(), - params: None, - }, - ); - - let Some(rmcp_initialized) = internal_to_rmcp_server_rx(&initialized) else { - break WorkerQuitReason::fatal( - Self::Error::Validation( - "failed converting synthetic initialized notification to rmcp format".to_string(), - ), - "converting synthetic initialized notification", - ); - }; - - if let Err(reason) = context.send_to_handler(rmcp_initialized).await { - break reason; - } - } } else { tracing::warn!( target: LOG_TARGET, @@ -352,35 +414,50 @@ impl NostrServerWorker { #[cfg(test)] mod tests { use super::*; - use crate::core::types::{JsonRpcRequest, JsonRpcResponse}; + use crate::core::types::JsonRpcResponse; #[test] - fn test_synthetic_initialize_keeps_sentinel_id() { - let mut message = JsonRpcMessage::Request(JsonRpcRequest { + fn test_should_inject_stateless_bootstrap_for_first_non_initialize_request() { + let initialized_clients = HashSet::new(); + let message = JsonRpcMessage::Request(JsonRpcRequest { jsonrpc: "2.0".to_string(), - id: serde_json::json!(STATELESS_SYNTHETIC_EVENT_ID), + id: serde_json::json!(1), + method: "tools/list".to_string(), + params: Some(serde_json::json!({})), + }); + + assert!(should_inject_stateless_bootstrap( + &initialized_clients, + "client-a", + &message, + )); + } + + #[test] + fn test_should_not_inject_stateless_bootstrap_for_real_initialize() { + let initialized_clients = HashSet::new(); + let message = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), method: "initialize".to_string(), - params: Some(serde_json::json!({ - "protocolVersion": crate::core::constants::mcp_protocol_version(), - })), + params: Some(serde_json::json!({})), }); - let is_synthetic_initialize = matches!( + assert!(!should_inject_stateless_bootstrap( + &initialized_clients, + "client-a", &message, - JsonRpcMessage::Request(req) - if req.method == "initialize" - && req.id == serde_json::json!(STATELESS_SYNTHETIC_EVENT_ID) - ); - - if !is_synthetic_initialize { - if let JsonRpcMessage::Request(ref mut req) = message { - req.id = serde_json::json!("real-event-id"); - } - } + )); + } + + #[test] + fn test_synthetic_initialize_keeps_sentinel_id() { + let message = synthetic_initialize_message(); match message { JsonRpcMessage::Request(req) => { assert_eq!(req.id, serde_json::json!(STATELESS_SYNTHETIC_EVENT_ID)); + assert_eq!(req.method, "initialize"); } other => panic!("expected request, got {other:?}"), } @@ -395,17 +472,8 @@ mod tests { params: Some(serde_json::json!({})), }); - let is_synthetic_initialize = matches!( - &message, - JsonRpcMessage::Request(req) - if req.method == "initialize" - && req.id == serde_json::json!(STATELESS_SYNTHETIC_EVENT_ID) - ); - - if !is_synthetic_initialize { - if let JsonRpcMessage::Request(ref mut req) = message { - req.id = serde_json::json!("real-event-id"); - } + if let JsonRpcMessage::Request(ref mut req) = message { + req.id = serde_json::json!("real-event-id"); } match message { @@ -431,4 +499,22 @@ mod tests { other => panic!("expected response, got {other:?}"), } } + + #[test] + fn test_synthetic_initialized_notification_shape() { + let message = synthetic_initialized_notification(); + match message { + JsonRpcMessage::Notification(notification) => { + assert_eq!(notification.method, "notifications/initialized"); + } + other => panic!("expected notification, got {other:?}"), + } + } + + #[test] + fn test_is_synthetic_initialize_message_detects_sentinel() { + assert!(is_synthetic_initialize_message( + &synthetic_initialize_message() + )); + } } diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index f60e6f5..ba9f6c7 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -919,54 +919,6 @@ impl NostrServerTransport { }) } - #[cfg(feature = "rmcp")] - fn synthetic_initialize_message() -> JsonRpcMessage { - JsonRpcMessage::Request(JsonRpcRequest { - jsonrpc: "2.0".to_string(), - id: serde_json::json!("contextvm-stateless-init"), - method: "initialize".to_string(), - params: Some(serde_json::json!({ - "protocolVersion": crate::core::constants::mcp_protocol_version(), - "capabilities": {}, - "clientInfo": { - "name": "contextvm-stateless-client", - "version": "0.1.0" - } - })), - }) - } - - #[cfg(not(feature = "rmcp"))] - fn synthetic_initialize_message() -> JsonRpcMessage { - JsonRpcMessage::Request(JsonRpcRequest { - jsonrpc: "2.0".to_string(), - id: serde_json::json!("contextvm-stateless-init"), - method: "initialize".to_string(), - params: Some(serde_json::json!({ - "protocolVersion": crate::core::constants::mcp_protocol_version(), - "capabilities": {}, - "clientInfo": { - "name": "contextvm-stateless-client", - "version": "0.1.0" - } - })), - }) - } - - fn should_inject_synthetic_initialize( - session: &ClientSession, - mcp_msg: &JsonRpcMessage, - ) -> bool { - if session.is_initialized { - return false; - } - - matches!( - mcp_msg, - JsonRpcMessage::Request(req) if req.method != "initialize" - ) - } - #[allow(clippy::too_many_arguments)] async fn event_loop( relay_pool: Arc, @@ -1273,12 +1225,6 @@ impl NostrServerTransport { session.supports_oversized_transfer |= oversized_enabled && discovered.supports_oversized_transfer; - let should_inject_initialize = - Self::should_inject_synthetic_initialize(session, &mcp_msg); - if should_inject_initialize { - session.is_initialized = true; - } - // Track request for correlation if let JsonRpcMessage::Request(ref req) = mcp_msg { let original_id = req.id.clone(); @@ -1338,16 +1284,6 @@ impl NostrServerTransport { } } - // Forward a synthetic initialize first for stateless first-request sessions. - if should_inject_initialize { - let _ = tx.send(IncomingRequest { - message: Self::synthetic_initialize_message(), - client_pubkey: sender_pubkey.clone(), - event_id: event_id.clone(), - is_encrypted, - }); - } - // Forward to consumer let _ = tx.send(IncomingRequest { message: mcp_msg, @@ -1626,76 +1562,6 @@ mod tests { )); } - #[test] - fn test_should_inject_synthetic_initialize_for_first_non_initialize_request() { - let session = ClientSession::new(false); - let message = JsonRpcMessage::Request(JsonRpcRequest { - jsonrpc: "2.0".to_string(), - id: serde_json::json!(1), - method: "tools/list".to_string(), - params: Some(serde_json::json!({})), - }); - - assert!(NostrServerTransport::should_inject_synthetic_initialize( - &session, &message, - )); - } - - #[test] - fn test_should_not_inject_synthetic_initialize_for_real_initialize_request() { - let session = ClientSession::new(false); - let message = JsonRpcMessage::Request(JsonRpcRequest { - jsonrpc: "2.0".to_string(), - id: serde_json::json!(1), - method: "initialize".to_string(), - params: Some(serde_json::json!({})), - }); - - assert!(!NostrServerTransport::should_inject_synthetic_initialize( - &session, &message, - )); - } - - #[test] - fn test_should_not_inject_synthetic_initialize_after_session_initialized() { - let mut session = ClientSession::new(false); - session.is_initialized = true; - let message = JsonRpcMessage::Request(JsonRpcRequest { - jsonrpc: "2.0".to_string(), - id: serde_json::json!(1), - method: "tools/list".to_string(), - params: Some(serde_json::json!({})), - }); - - assert!(!NostrServerTransport::should_inject_synthetic_initialize( - &session, &message, - )); - } - - #[test] - fn test_synthetic_initialize_message_shape() { - let message = NostrServerTransport::synthetic_initialize_message(); - let JsonRpcMessage::Request(request) = message else { - panic!("expected request"); - }; - - assert_eq!(request.method, "initialize"); - assert_eq!(request.id, serde_json::json!("contextvm-stateless-init")); - - let params = request.params.expect("initialize params"); - assert_eq!( - params.get("protocolVersion").and_then(|v| v.as_str()), - Some(crate::core::constants::mcp_protocol_version()) - ); - assert_eq!( - params - .get("clientInfo") - .and_then(|v| v.get("name")) - .and_then(|v| v.as_str()), - Some("contextvm-stateless-client") - ); - } - #[test] fn test_method_excluded_without_name() { let exclusions = vec![CapabilityExclusion { From ea17427d05ef80e2e9c23dceb0f1865b0e7cb966 Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 7 May 2026 23:47:13 +0530 Subject: [PATCH 072/116] chore: add missing derives and gate MockRelayPool behind test-utils feature --- CHANGELOG.md | 6 ++++++ Cargo.toml | 8 +++++++- README.md | 2 +- src/core/types.rs | 4 ++-- src/gateway/mod.rs | 1 + src/lib.rs | 1 + src/proxy/mod.rs | 1 + src/relay/mod.rs | 2 ++ src/transport/client/mod.rs | 1 + src/transport/server/mod.rs | 1 + 10 files changed, 23 insertions(+), 4 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 694916f..acf7e70 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,5 +1,11 @@ # Changelog +## [0.1.1] - 2026-05-08 + +### Fixed + +- Corrected crates.io metadata (repository URL, keywords, categories, homepage, documentation) + ## [0.1.0] - 2026-05-07 ### Added diff --git a/Cargo.toml b/Cargo.toml index 7abf096..cf0537d 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -1,6 +1,6 @@ [package] name = "contextvm-sdk" -version = "0.1.0" +version = "0.1.1" edition = "2021" rust-version = "1.70" description = "Rust SDK for the ContextVM protocol — MCP over Nostr" @@ -43,6 +43,8 @@ tokio-util = { version = "0.7", features = ["rt"] } # Enable rmcp by default while keeping legacy APIs available. default = ["rmcp"] rmcp = ["dep:rmcp"] +## Exposes `MockRelayPool` for use in downstream integration tests. +test-utils = [] [[example]] name = "rmcp_integration_test" @@ -56,6 +58,10 @@ required-features = ["rmcp"] name = "native_echo_client" required-features = ["rmcp"] +[[test]] +name = "transport_integration" +required-features = ["test-utils"] + [dev-dependencies] tokio-test = "0.4" anyhow = "1" diff --git a/README.md b/README.md index ffdb4e5..e1f5e6b 100644 --- a/README.md +++ b/README.md @@ -53,7 +53,7 @@ Add to your `Cargo.toml`: ```toml [dependencies] -contextvm-sdk = { git = "https://github.com/k0sti/rust-contextvm-sdk" } +contextvm-sdk = { git = "https://github.com/ContextVM/rs-sdk" } ``` Or clone and use as a path dependency: diff --git a/src/core/types.rs b/src/core/types.rs index d3d0064..1860369 100644 --- a/src/core/types.rs +++ b/src/core/types.rs @@ -114,7 +114,7 @@ impl ServerInfo { // ── Client session ────────────────────────────────────────────────── /// Client session state tracked by the server transport. -#[derive(Debug)] +#[derive(Debug, Clone)] pub struct ClientSession { /// Whether the client has completed MCP initialization. pub is_initialized: bool, @@ -294,7 +294,7 @@ impl JsonRpcMessage { // ── Capability exclusion ──────────────────────────────────────────── /// A capability exclusion pattern that bypasses pubkey whitelisting. -#[derive(Debug, Clone)] +#[derive(Debug, Clone, Serialize, Deserialize)] pub struct CapabilityExclusion { /// The JSON-RPC method to exclude (e.g., "tools/call", "tools/list"). pub method: String, diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index e4bba91..9e637c9 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -8,6 +8,7 @@ use crate::core::types::JsonRpcMessage; use crate::transport::server::{IncomingRequest, NostrServerTransport, NostrServerTransportConfig}; /// Configuration for the gateway. +#[derive(Debug, Clone)] #[non_exhaustive] pub struct GatewayConfig { /// Nostr server transport configuration. diff --git a/src/lib.rs b/src/lib.rs index 7615c7e..29d5672 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -55,6 +55,7 @@ pub use core::types::{ ServerInfo, }; pub use discovery::ServerAnnouncement; +#[cfg(any(test, feature = "test-utils"))] pub use relay::mock::MockRelayPool; pub use relay::{RelayPool, RelayPoolTrait}; pub use transport::client::{ diff --git a/src/proxy/mod.rs b/src/proxy/mod.rs index 4833127..fce265f 100644 --- a/src/proxy/mod.rs +++ b/src/proxy/mod.rs @@ -8,6 +8,7 @@ use crate::core::types::JsonRpcMessage; use crate::transport::client::{NostrClientTransport, NostrClientTransportConfig}; /// Configuration for the proxy. +#[derive(Debug, Clone)] #[non_exhaustive] pub struct ProxyConfig { /// Nostr client transport configuration. diff --git a/src/relay/mod.rs b/src/relay/mod.rs index 198a5a7..cfb0bc5 100644 --- a/src/relay/mod.rs +++ b/src/relay/mod.rs @@ -2,7 +2,9 @@ //! //! Wraps nostr-sdk's Client for relay connection, event publishing, and subscription. +#[cfg(any(test, feature = "test-utils"))] pub mod mock; +#[cfg(any(test, feature = "test-utils"))] pub use mock::MockRelayPool; use async_trait::async_trait; diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index 31f80c7..424cea6 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -29,6 +29,7 @@ use crate::transport::discovery_tags::{parse_discovered_peer_capabilities, PeerC const LOG_TARGET: &str = "contextvm_sdk::transport::client"; /// Configuration for the client transport. +#[derive(Debug, Clone)] #[non_exhaustive] pub struct NostrClientTransportConfig { /// Relay URLs to connect to. diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index ba9f6c7..e885376 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -32,6 +32,7 @@ use crate::transport::discovery_tags::learn_peer_capabilities; const LOG_TARGET: &str = "contextvm_sdk::transport::server"; /// Configuration for the server transport. +#[derive(Debug, Clone)] #[non_exhaustive] pub struct NostrServerTransportConfig { /// Relay URLs to connect to. From 12262dafeec7996909a1437b7bc9e13dbe6220ad Mon Sep 17 00:00:00 2001 From: Harsh Date: Fri, 8 May 2026 07:47:22 +0530 Subject: [PATCH 073/116] test: add E2E happy path integration tests through full SDK stack --- tests/e2e_happy_path.rs | 448 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 448 insertions(+) create mode 100644 tests/e2e_happy_path.rs diff --git a/tests/e2e_happy_path.rs b/tests/e2e_happy_path.rs new file mode 100644 index 0000000..61f0c2a --- /dev/null +++ b/tests/e2e_happy_path.rs @@ -0,0 +1,448 @@ +//! End-to-end happy path integration tests. +//! +//! Exercises the full SDK stack in-memory: RMCP handler → NostrServerWorker → +//! NostrServerTransport → MockRelayPool → NostrClientTransport → +//! NostrClientWorker → RMCP client. No network required. + +#![cfg(feature = "rmcp")] + +use std::sync::Arc; +use std::time::Duration; + +use contextvm_sdk::core::types::EncryptionMode; +use contextvm_sdk::relay::mock::MockRelayPool; +use contextvm_sdk::transport::client::{NostrClientTransport, NostrClientTransportConfig}; +use contextvm_sdk::transport::server::{NostrServerTransport, NostrServerTransportConfig}; +use contextvm_sdk::RelayPoolTrait; + +use rmcp::{ + handler::server::router::tool::ToolRouter, handler::server::wrapper::Parameters, model::*, + schemars, service::RequestContext, tool, tool_handler, tool_router, ClientHandler, RoleServer, + ServerHandler, ServiceExt, +}; +use tokio::sync::Mutex; + +// ── Fixtures ────────────────────────────────────────────────────────────── + +#[derive(Debug, serde::Deserialize, schemars::JsonSchema)] +struct EchoParams { + message: String, +} + +#[derive(Debug, serde::Deserialize, schemars::JsonSchema)] +struct AddParams { + a: i64, + b: i64, +} + +#[derive(Clone)] +struct DemoServer { + echo_count: Arc>, + tool_router: ToolRouter, +} + +impl DemoServer { + fn new() -> Self { + Self { + echo_count: Arc::new(Mutex::new(0)), + tool_router: Self::tool_router(), + } + } +} + +#[tool_router] +impl DemoServer { + #[tool(description = "Echo a message back")] + async fn echo( + &self, + Parameters(EchoParams { message }): Parameters, + ) -> Result { + let mut n = self.echo_count.lock().await; + *n += 1; + Ok(CallToolResult::success(vec![Content::text(format!( + "Echo #{n}: {message}" + ))])) + } + + #[tool(description = "Add two integers")] + fn add( + &self, + Parameters(AddParams { a, b }): Parameters, + ) -> Result { + Ok(CallToolResult::success(vec![Content::text(format!( + "{a} + {b} = {}", + a + b + ))])) + } + + #[tool(description = "Return total echo calls")] + async fn get_echo_count(&self) -> Result { + let n = self.echo_count.lock().await; + Ok(CallToolResult::success(vec![Content::text(format!( + "Total echo calls: {n}" + ))])) + } +} + +#[tool_handler] +impl ServerHandler for DemoServer { + fn get_info(&self) -> ServerInfo { + ServerInfo { + protocol_version: ProtocolVersion::LATEST, + capabilities: ServerCapabilities::builder() + .enable_tools() + .enable_resources() + .build(), + server_info: Implementation { + name: "e2e-test-server".to_string(), + title: None, + version: "0.1.0".to_string(), + description: None, + icons: None, + website_url: None, + }, + instructions: None, + } + } + + async fn list_resources( + &self, + _req: Option, + _ctx: RequestContext, + ) -> Result { + Ok(ListResourcesResult { + resources: vec![ + RawResource::new("demo://readme", "Demo README".to_string()).no_annotation() + ], + next_cursor: None, + meta: None, + }) + } + + async fn read_resource( + &self, + req: ReadResourceRequestParams, + _ctx: RequestContext, + ) -> Result { + match req.uri.as_str() { + "demo://readme" => Ok(ReadResourceResult { + contents: vec![ResourceContents::text("Demo content.", req.uri)], + }), + other => Err(ErrorData::resource_not_found( + "not_found", + Some(serde_json::json!({ "uri": other })), + )), + } + } +} + +#[derive(Clone, Default)] +struct DemoClient; +impl ClientHandler for DemoClient {} + +// ── Helpers ─────────────────────────────────────────────────────────────── + +fn as_pool(pool: MockRelayPool) -> Arc { + Arc::new(pool) +} + +fn first_text(result: &CallToolResult) -> String { + result + .content + .iter() + .find_map(|c| match &c.raw { + RawContent::Text(t) => Some(t.text.clone()), + _ => None, + }) + .unwrap_or_default() +} + +fn call_params(name: &'static str, args: Option) -> CallToolRequestParams { + CallToolRequestParams { + name: name.into(), + arguments: args.and_then(|v| serde_json::from_value(v).ok()), + meta: None, + task: None, + } +} + +// ── Core scenario runner ────────────────────────────────────────────────── + +async fn run_e2e_scenario(mode: EncryptionMode) { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + + // Extract server pubkey before as_pool() takes ownership + let server_pubkey_hex = server_pool.mock_public_key().to_hex(); + + let server_transport = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default().with_encryption_mode(mode), + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let client_transport = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey_hex) + .with_encryption_mode(mode), + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let server_handle = tokio::spawn(async move { + DemoServer::new() + .serve(server_transport) + .await + .expect("server serve failed") + .waiting() + .await + .expect("server error"); + }); + + // Let server event loop establish subscriptions + tokio::time::sleep(Duration::from_millis(10)).await; + + // rmcp handles the initialize handshake + let client = tokio::time::timeout(Duration::from_secs(5), DemoClient.serve(client_transport)) + .await + .expect("client startup timed out") + .expect("client init failed"); + + let peer = client + .peer_info() + .expect("peer_info should be available after serve()"); + assert_eq!( + peer.server_info.name, "e2e-test-server", + "server name mismatch" + ); + + let tools = client.list_all_tools().await.expect("list_all_tools"); + assert_eq!(tools.len(), 3, "expected 3 tools"); + let tool_names: Vec<&str> = tools.iter().map(|t| t.name.as_ref()).collect(); + assert!(tool_names.contains(&"echo"), "missing echo tool"); + assert!(tool_names.contains(&"add"), "missing add tool"); + assert!( + tool_names.contains(&"get_echo_count"), + "missing get_echo_count tool" + ); + + let echo1 = client + .call_tool(call_params( + "echo", + Some(serde_json::json!({"message": "hello"})), + )) + .await + .expect("echo call"); + let echo1_text = first_text(&echo1); + assert!( + echo1_text.contains("hello"), + "echo should contain 'hello', got: {echo1_text}" + ); + assert!( + echo1_text.contains("#1"), + "first echo should be #1, got: {echo1_text}" + ); + + let add = client + .call_tool(call_params( + "add", + Some(serde_json::json!({"a": 7, "b": 5})), + )) + .await + .expect("add call"); + let add_text = first_text(&add); + assert!( + add_text.contains("12"), + "add result should contain 12, got: {add_text}" + ); + + let count = client + .call_tool(call_params("get_echo_count", None)) + .await + .expect("get_echo_count call"); + let count_text = first_text(&count); + assert!( + count_text.contains("calls: 1"), + "echo count should be 1 after one echo call, got: {count_text}" + ); + + let echo2 = client + .call_tool(call_params( + "echo", + Some(serde_json::json!({"message": "world"})), + )) + .await + .expect("second echo call"); + let echo2_text = first_text(&echo2); + assert!( + echo2_text.contains("#2"), + "second echo should be #2, got: {echo2_text}" + ); + + let count2 = client + .call_tool(call_params("get_echo_count", None)) + .await + .expect("get_echo_count after second echo"); + let count2_text = first_text(&count2); + assert!( + count2_text.contains("calls: 2"), + "echo count should be 2, got: {count2_text}" + ); + + let resources = client + .list_all_resources() + .await + .expect("list_all_resources"); + assert_eq!(resources.len(), 1, "expected 1 resource"); + assert_eq!(resources[0].uri.as_str(), "demo://readme"); + assert_eq!(resources[0].name.as_str(), "Demo README"); + + let read_result = client + .read_resource(ReadResourceRequestParams { + uri: "demo://readme".to_string(), + meta: None, + }) + .await + .expect("read_resource"); + assert_eq!(read_result.contents.len(), 1); + match &read_result.contents[0] { + ResourceContents::TextResourceContents { text, uri, .. } => { + assert_eq!(uri, "demo://readme"); + assert!( + text.contains("Demo content."), + "unexpected resource text: {text}" + ); + } + _ => panic!("expected TextResourceContents"), + } + + match client.call_tool(call_params("no_such_tool", None)).await { + Err(_) => {} + Ok(r) if r.is_error.unwrap_or(false) => {} + Ok(_) => panic!("expected unknown tool to fail"), + } + + client.cancel().await.expect("client cancel"); + server_handle.abort(); +} + +// ── Tests ───────────────────────────────────────────────────────────────── + +// NOTE: EncryptionMode::Disabled is intentionally NOT tested here. +// MockRelayPool broadcasts all events to all receivers, including the publisher. +// In Disabled mode (plaintext kind 25910), the server receives its own responses +// and the RMCP handler rejects them. In encrypted modes, the server naturally +// can't decrypt events gift-wrapped for the client, so they're filtered out. +// Real Nostr relays do not echo events back to the publisher, so this is a +// mock-only limitation. Disabled mode is tested at the transport level in +// tests/transport_integration.rs. + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn e2e_happy_path_encryption_optional() { + run_e2e_scenario(EncryptionMode::Optional).await; +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn e2e_happy_path_encryption_required() { + run_e2e_scenario(EncryptionMode::Required).await; +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn e2e_multi_client_no_crosstalk() { + let mut pools = MockRelayPool::create_linked_group(3); + let server_pool = pools.remove(0); + let client1_pool = pools.remove(0); + let client2_pool = pools.remove(0); + + // Extract server pubkey BEFORE as_pool() takes ownership + let server_pubkey_hex = server_pool.mock_public_key().to_hex(); + + let server_transport = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Optional), + as_pool(server_pool), + ) + .await + .expect("create server transport"); + + let server_handle = tokio::spawn(async move { + DemoServer::new() + .serve(server_transport) + .await + .expect("server serve failed") + .waiting() + .await + .expect("server error"); + }); + + tokio::time::sleep(Duration::from_millis(10)).await; + + // Create two independent clients + let client1_transport = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey_hex.clone()) + .with_encryption_mode(EncryptionMode::Optional), + as_pool(client1_pool), + ) + .await + .expect("create client1 transport"); + + let client2_transport = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_server_pubkey(server_pubkey_hex) + .with_encryption_mode(EncryptionMode::Optional), + as_pool(client2_pool), + ) + .await + .expect("create client2 transport"); + + let client1 = tokio::time::timeout(Duration::from_secs(5), DemoClient.serve(client1_transport)) + .await + .expect("client1 timed out") + .expect("client1 init"); + + let client2 = tokio::time::timeout(Duration::from_secs(5), DemoClient.serve(client2_transport)) + .await + .expect("client2 timed out") + .expect("client2 init"); + + // Both clients call echo — responses must route correctly + let r1 = client1 + .call_tool(call_params( + "echo", + Some(serde_json::json!({"message": "from-client1"})), + )) + .await + .expect("client1 echo"); + assert!( + first_text(&r1).contains("from-client1"), + "client1 should get its own response" + ); + + let r2 = client2 + .call_tool(call_params( + "echo", + Some(serde_json::json!({"message": "from-client2"})), + )) + .await + .expect("client2 echo"); + assert!( + first_text(&r2).contains("from-client2"), + "client2 should get its own response" + ); + + // Shared stateful counter should reflect calls from both clients + let count = client1 + .call_tool(call_params("get_echo_count", None)) + .await + .expect("client1 get_echo_count"); + assert!( + first_text(&count).contains("calls: 2"), + "echo count should be 2 after calls from both clients" + ); + + // Cleanup + client1.cancel().await.expect("client1 cancel"); + client2.cancel().await.expect("client2 cancel"); + server_handle.abort(); +} From 5a567f2f634d7a803415fcf732057313fd54ad63 Mon Sep 17 00:00:00 2001 From: ContextVM Date: Fri, 8 May 2026 12:02:42 +0200 Subject: [PATCH 074/116] docs: update transport configuration examples to use builder pattern Updates code examples across all documentation guides to use the builder pattern (with_* methods) instead of struct literals for NostrClientTransportConfig, NostrServerTransportConfig, GatewayConfig, and ProxyConfig. Also updates function references to use fully qualified associated function names. --- docs/README.md | 2 + docs/client-transport.md | 91 ++++++++++++++++++++---------- docs/encryption.md | 14 ++--- docs/gateway.md | 20 +++---- docs/overview.md | 4 +- docs/proxy.md | 10 ++-- docs/rmcp.md | 6 +- docs/server-transport.md | 59 ++++++++++++++------ docs/stateless.md | 102 ++++++++++++++++++++++++++++++++++ docs/transport-modes.md | 116 +++++++++++++++++++++++++++++++++++++++ docs/transports.md | 13 ++--- 11 files changed, 352 insertions(+), 85 deletions(-) create mode 100644 docs/stateless.md create mode 100644 docs/transport-modes.md diff --git a/docs/README.md b/docs/README.md index 2c9a74d..400ac2c 100644 --- a/docs/README.md +++ b/docs/README.md @@ -20,6 +20,7 @@ For most native Rust applications, the primary entry points are `NostrServerTran - Native server guide: server setup over Nostr - Native client guide: client setup over Nostr - Encryption guide: plaintext, encrypted, and gift-wrap behavior +- Stateless mode guide: client-side initialize emulation and when to use it - Discovery guide: public discovery helpers and event kinds ### Bridging existing MCP applications @@ -31,6 +32,7 @@ For most native Rust applications, the primary entry points are `NostrServerTran - RMCP integration guide: how the optional `rmcp` integration layer fits in - Transport guide: lower-level transport behavior and direct usage +- Transport modes guide: encryption mode, gift-wrap mode, and stateless mode as one reference ## Documentation goals diff --git a/docs/client-transport.md b/docs/client-transport.md index 3a947fb..cc4de18 100644 --- a/docs/client-transport.md +++ b/docs/client-transport.md @@ -37,62 +37,97 @@ Use `generate()` only when you explicitly want a new random identity for a short ## Example ```rust +use anyhow::Context; use contextvm_sdk::transport::client::{ NostrClientTransport, NostrClientTransportConfig, }; -use contextvm_sdk::{EncryptionMode, GiftWrapMode}; +use contextvm_sdk::{signer, EncryptionMode, GiftWrapMode}; use rmcp::{ + model::{CallToolRequestParams, CallToolResult}, ClientHandler, ServiceExt, - model::{CallToolRequestParams, ClientCapabilities, ClientInfo, Implementation}, }; +const RELAY_URL: &str = "wss://relay.contextvm.org"; + #[derive(Clone, Default)] struct DemoClient; -impl ClientHandler for DemoClient { - fn get_info(&self) -> ClientInfo { - ClientInfo::new( - ClientCapabilities::default(), - Implementation::new("demo-client", "0.1.0"), - ) - } -} +impl ClientHandler for DemoClient {} #[tokio::main] async fn main() -> anyhow::Result<()> { - let signer = contextvm_sdk::signer::generate(); + let server_pubkey = std::env::args() + .nth(1) + .context("Usage: native_echo_client ")?; + + tracing_subscriber::fmt() + .with_env_filter( + tracing_subscriber::EnvFilter::from_default_env() + .add_directive("contextvm_sdk=info".parse()?) + .add_directive("rmcp=warn".parse()?), + ) + .init(); + + let signer = signer::generate(); + + println!("Native ContextVM echo client starting"); + println!("Relay: {RELAY_URL}"); + println!("Client pubkey: {}", signer.public_key().to_hex()); + println!("Target server pubkey: {server_pubkey}"); let transport = NostrClientTransport::new( signer, - NostrClientTransportConfig { - relay_urls: vec!["wss://relay.primal.net".to_string()], - server_pubkey: "".to_string(), - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Optional, - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_relay_urls(vec![RELAY_URL.to_string()]) + .with_server_pubkey(server_pubkey) + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional), ) .await?; let client = DemoClient.serve(transport).await?; - let server_info = client.peer_info(); - println!("Connected to server: {server_info:#?}"); + let peer_info = client + .peer_info() + .expect("server did not provide peer info after initialize"); + println!("Connected to: {:?}", peer_info.server_info.name); - let tools = client.list_tools(Default::default()).await?; - println!("Available tools: {tools:#?}"); + let tools = client.list_all_tools().await?; + println!("Discovered {} tool(s):", tools.len()); + for tool in &tools { + println!("- {}", tool.name); + } let result = client - .call_tool( - CallToolRequestParams::new("echo") - .with_arguments(serde_json::json!({ "message": "hello" }).as_object().cloned().unwrap()), - ) + .call_tool(CallToolRequestParams { + name: "echo".into(), + arguments: serde_json::from_value(serde_json::json!({ + "message": "hello from native contextvm client" + })) + .ok(), + meta: None, + task: None, + }) .await?; - println!("Tool result: {result:#?}"); + println!("Echo result: {}", first_text(&result)); client.cancel().await?; Ok(()) } + +fn first_text(result: &CallToolResult) -> String { + result + .content + .iter() + .find_map(|content| { + if let rmcp::model::RawContent::Text(text) = &content.raw { + Some(text.text.clone()) + } else { + None + } + }) + .unwrap_or_default() +} ``` This is the ContextVM equivalent of the usual `rmcp` client workflow, but using `NostrClientTransport` directly. @@ -127,7 +162,7 @@ Use the proxy guide when you want a simpler message-oriented bridge and do not w ## Behavioral notes -- The client-side `rmcp` handshake is driven by the normal `serve_client()` flow. +- The client-side `rmcp` handshake is driven by `ServiceExt::serve()` on the client handler. - The initialize request is sent automatically as part of the running client startup sequence. - Stateless initialization behavior is covered by the conformance tests. - Capability learning and gift-wrap handling happen inside the client transport implementation. diff --git a/docs/encryption.md b/docs/encryption.md index 5c3c911..9abbb61 100644 --- a/docs/encryption.md +++ b/docs/encryption.md @@ -18,7 +18,7 @@ These semantics are not only conceptual; they are also exercised by the transpor `GiftWrapMode` controls which outer encrypted event kind is used: -- `Optional`: accept and prefer either supported mode +- `Optional`: accept both modes and default to persistent wrapping until ephemeral support is learned from the peer - `Ephemeral`: use kind `21059` - `Persistent`: use kind `1059` @@ -58,13 +58,11 @@ This is covered by the deduplication and encrypted transport integration tests. use contextvm_sdk::core::types::{EncryptionMode, GiftWrapMode}; use contextvm_sdk::transport::client::NostrClientTransportConfig; -let config = NostrClientTransportConfig { - relay_urls: vec!["wss://relay.damus.io".to_string()], - server_pubkey: "".to_string(), - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Optional, - ..Default::default() -}; +let config = NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://relay.damus.io".to_string()]) + .with_server_pubkey("") + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional); ``` ## Discovery tags diff --git a/docs/gateway.md b/docs/gateway.md index c874965..bcec813 100644 --- a/docs/gateway.md +++ b/docs/gateway.md @@ -33,16 +33,14 @@ async fn main() -> contextvm_sdk::Result<()> { let keys = signer::generate(); let config = GatewayConfig { - nostr_config: NostrServerTransportConfig { - relay_urls: vec!["wss://relay.damus.io".to_string()], - server_info: Some(ServerInfo { - name: Some("Echo Server".to_string()), - about: Some("A simple ContextVM server".to_string()), - ..Default::default() - }), - is_announced_server: true, - ..Default::default() - }, + nostr_config: NostrServerTransportConfig::default() + .with_relay_urls(vec!["wss://relay.damus.io".to_string()]) + .with_server_info( + ServerInfo::default() + .with_name("Echo Server".to_string()) + .with_about("A simple ContextVM server".to_string()), + ) + .with_announced_server(true), }; let mut gateway = NostrMCPGateway::new(keys, config).await?; @@ -124,6 +122,6 @@ The main operational knobs live on `NostrServerTransportConfig`: ## rmcp path -If your server already uses `rmcp`, the gateway also exposes `serve_handler()` so you can attach a handler directly without manually running the request loop. +If your server already uses `rmcp`, the gateway also exposes the associated function `NostrMCPGateway::serve_handler()` so you can attach a handler directly without manually running the request loop. That said, the preferred native architecture is still `rmcp` service first and ContextVM transport second. diff --git a/docs/overview.md b/docs/overview.md index 528c7a7..add9879 100644 --- a/docs/overview.md +++ b/docs/overview.md @@ -27,7 +27,7 @@ Most users should start with one of these entry points: | Expose an already-existing MCP server on Nostr | `NostrMCPGateway` | | Connect to a remote ContextVM server with a simpler bridge | `NostrMCPProxy` | | Discover public servers and capabilities | `discover_servers()` and related helpers | -| Work directly with the optional bridge layer | `serve_handler()` or `serve_client_handler()` | +| Work directly with the optional bridge layer | `NostrMCPGateway::serve_handler()` or `NostrMCPProxy::serve_client_handler()` | ## Architecture @@ -58,7 +58,7 @@ ContextVM keeps MCP semantics intact and uses Nostr only as the transport envelo - `EncryptionMode`: `Optional`, `Required`, `Disabled` - `GiftWrapMode`: `Optional`, `Ephemeral`, `Persistent` -- `ServerInfo`: announcement metadata +- `contextvm_sdk::ServerInfo`: announcement metadata - `CapabilityExclusion`: allowlist bypass rules for specific methods or capabilities ## Typical workflows diff --git a/docs/proxy.md b/docs/proxy.md index 0aa57a2..0ef6167 100644 --- a/docs/proxy.md +++ b/docs/proxy.md @@ -43,11 +43,9 @@ async fn main() -> contextvm_sdk::Result<()> { let keys = signer::from_sk("")?; let config = ProxyConfig { - nostr_config: NostrClientTransportConfig { - relay_urls: vec!["wss://relay.damus.io".to_string()], - server_pubkey: "".to_string(), - ..Default::default() - }, + nostr_config: NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://relay.damus.io".to_string()]) + .with_server_pubkey(""), }; let mut proxy = NostrMCPProxy::new(keys, config).await?; @@ -111,6 +109,6 @@ Prefer the native client transport path when: ## rmcp path -If you are building on `rmcp`, use `serve_client_handler()` instead of manually sending and receiving raw `JsonRpcMessage` values. +If you are building on `rmcp`, use the associated function `NostrMCPProxy::serve_client_handler()` instead of manually sending and receiving raw `JsonRpcMessage` values. That said, the preferred native architecture is still `rmcp` client first and ContextVM transport second. diff --git a/docs/rmcp.md b/docs/rmcp.md index 2c66801..cf611c6 100644 --- a/docs/rmcp.md +++ b/docs/rmcp.md @@ -8,7 +8,7 @@ The Rust SDK exposes that integration behind the `rmcp` feature and re-exports t Use `rmcp` to define your server or client behavior, then attach ContextVM transports. -That mirrors the transport-agnostic `rmcp` model, especially `ServiceExt`, `serve_server()`, and `serve_client()`. +That mirrors the transport-agnostic `rmcp` model, especially `ServiceExt` and the standard `handler.serve(transport)` pattern. The native entry points in this SDK are therefore: @@ -19,11 +19,11 @@ For that workflow, use the native server and native client guides in this direct ## Server-side integration -Use `serve_handler()` to serve an `rmcp` server handler directly over ContextVM. +Use the associated function `NostrMCPGateway::serve_handler()` to serve an `rmcp` server handler directly over ContextVM. ## Client-side integration -Use `serve_client_handler()` to connect an `rmcp` client handler through the ContextVM client worker. +Use the associated function `NostrMCPProxy::serve_client_handler()` to connect an `rmcp` client handler through the ContextVM client worker. ## Why this still exists as a separate page diff --git a/docs/server-transport.md b/docs/server-transport.md index 05246e0..b5e270c 100644 --- a/docs/server-transport.md +++ b/docs/server-transport.md @@ -35,17 +35,19 @@ This is the right choice for long-lived servers, announced servers, and deployme use contextvm_sdk::transport::server::{ NostrServerTransport, NostrServerTransportConfig, }; -use contextvm_sdk::{EncryptionMode, GiftWrapMode}; +use contextvm_sdk::{signer, EncryptionMode, GiftWrapMode, ServerInfo}; use rmcp::{ ServerHandler, ServiceExt, - handler::server::wrapper::Parameters, + handler::server::{router::tool::ToolRouter, wrapper::Parameters}, model::*, schemars, tool, tool_handler, tool_router, }; +const RELAY_URL: &str = "wss://relay.contextvm.org"; + #[derive(Clone)] struct DemoServer { - tool_router: rmcp::handler::server::router::tool::ToolRouter, + tool_router: ToolRouter, } impl DemoServer { @@ -68,45 +70,66 @@ impl DemoServer { &self, Parameters(EchoParams { message }): Parameters, ) -> Result { - Ok(CallToolResult::success(vec![Content::text(message)])) + Ok(CallToolResult::success(vec![Content::text(format!( + "Echo: {message}" + ))])) } } #[tool_handler] impl ServerHandler for DemoServer { - fn get_info(&self) -> ServerInfo { - ServerInfo { + fn get_info(&self) -> rmcp::model::ServerInfo { + rmcp::model::ServerInfo { protocol_version: ProtocolVersion::LATEST, capabilities: ServerCapabilities::builder().enable_tools().build(), - server_info: Implementation::new("demo-server", "0.1.0"), - instructions: Some("Try the echo tool".to_string()), + server_info: Implementation::new("contextvm-native-echo", "0.1.0") + .with_title("ContextVM Native Echo Server") + .with_description("Native rmcp echo server over ContextVM/Nostr"), + instructions: Some("Call the echo tool with a message string".to_string()), } } } #[tokio::main] async fn main() -> anyhow::Result<()> { - let signer = contextvm_sdk::signer::generate(); + tracing_subscriber::fmt() + .with_env_filter( + tracing_subscriber::EnvFilter::from_default_env() + .add_directive("contextvm_sdk=info".parse()?) + .add_directive("rmcp=warn".parse()?), + ) + .init(); + + let signer = signer::generate(); + let pubkey = signer.public_key().to_hex(); + + println!("Native ContextVM echo server starting"); + println!("Relay: {RELAY_URL}"); + println!("Server pubkey: {pubkey}"); let transport = NostrServerTransport::new( signer, - NostrServerTransportConfig { - relay_urls: vec!["wss://relay.primal.net".to_string()], - is_announced_server: true, - encryption_mode: EncryptionMode::Optional, - gift_wrap_mode: GiftWrapMode::Optional, - ..Default::default() - }, + NostrServerTransportConfig::default() + .with_relay_urls(vec![RELAY_URL.to_string()]) + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional) + .with_announced_server(false) + .with_server_info( + ServerInfo::default() + .with_name("contextvm-native-echo".to_string()) + .with_about("Native rmcp echo server example".to_string()), + ), ) .await?; let service = DemoServer::new().serve(transport).await?; + println!("Server ready. Press Ctrl+C to stop."); service.waiting().await?; Ok(()) } ``` -This follows the same native service pattern as the repository integration example, but replaces the local duplex transport with `NostrServerTransport`. +This follows the same flow as [`examples/native_echo_server.rs`](examples/native_echo_server.rs:1), while keeping the snippet compatible for external crate users by avoiding struct literals on `#[non_exhaustive]` types. ## What the transport adds @@ -139,7 +162,7 @@ Use the gateway guide when you already have a request loop or existing local MCP ## Behavioral notes -- The `rmcp` server handshake follows the normal `serve_server()` flow. +- The `rmcp` server handshake follows `ServiceExt::serve()` on the server handler. - `rmcp` accepts pre-init ping and enters the main loop immediately after initialization completes. - ContextVM response routing depends on request event ids. - Encryption mirroring and announcement behavior are covered by the integration tests. diff --git a/docs/stateless.md b/docs/stateless.md new file mode 100644 index 0000000..7fb2c48 --- /dev/null +++ b/docs/stateless.md @@ -0,0 +1,102 @@ +# Stateless Mode Guide + +Stateless mode is a client-side transport behavior enabled through `NostrClientTransportConfig::with_stateless()`. + +It is designed for flows where the client should behave as if initialization succeeded without waiting for the server to answer over the network. + +## What stateless mode actually does + +When `is_stateless` is enabled on `NostrClientTransportConfig`, the client transport intercepts two parts of the normal MCP startup sequence inside `NostrClientTransport::send()`: + +- an outgoing `initialize` request +- an outgoing `notifications/initialized` notification + +For the `initialize` request, the transport locally emulates a successful initialize response instead of publishing the request to the relay network. + +For the `notifications/initialized` notification, the transport simply swallows the notification and does not send it over the network. + +## What does not change + +Stateless mode does not make the whole transport local-only. + +After initialization is emulated, normal requests are still serialized and sent through Nostr. + +That means stateless mode changes startup semantics, not the rest of the request/response transport model. + +## When to use it + +Use stateless mode when: + +- you want faster startup for short-lived clients +- you control both sides and do not need a server-provided initialize payload +- you are using the proxy or native client flow mainly for direct tool calls after startup + +Avoid it when: + +- you need the server's real initialize response +- your workflow depends on server-specific initialize metadata +- you want startup behavior to strictly follow the network exchange + +## Example + +```rust +use contextvm_sdk::transport::client::{ + NostrClientTransport, NostrClientTransportConfig, +}; +use contextvm_sdk::{signer, EncryptionMode, GiftWrapMode}; +use rmcp::{ClientHandler, ServiceExt}; + +#[derive(Clone, Default)] +struct DemoClient; + +impl ClientHandler for DemoClient {} + +#[tokio::main] +async fn main() -> anyhow::Result<()> { + let signer = signer::generate(); + + let transport = NostrClientTransport::new( + signer, + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://relay.contextvm.org".to_string()]) + .with_server_pubkey("") + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional) + .with_stateless(true), + ) + .await?; + + let client = DemoClient.serve(transport).await?; + + // Initialize completed locally; subsequent requests still go over Nostr. + let tools = client.list_all_tools().await?; + println!("Discovered {} tool(s)", tools.len()); + + client.cancel().await?; + Ok(()) +} +``` + +## Emulated initialize shape + +The emulated initialize response includes: + +- `protocolVersion` +- `serverInfo` +- `capabilities` + +This is verified by the transport tests in the repository. + +The placeholder `serverInfo.name` used by the emulated response is currently `Emulated-Stateless-Server`. + +## Relationship to discovery and learned capabilities + +Stateless mode does not disable peer capability learning. + +The client still advertises its own capabilities through discovery tags, and it still learns server capabilities from inbound tags later in the session. + +So even in stateless mode, encryption and ephemeral gift-wrap support can still be learned from later inbound traffic. + +## Practical limitation + +Because the initialize roundtrip is skipped, stateless mode should be treated as an optimization for compatible workflows, not as a universal replacement for normal MCP startup. diff --git a/docs/transport-modes.md b/docs/transport-modes.md new file mode 100644 index 0000000..e058096 --- /dev/null +++ b/docs/transport-modes.md @@ -0,0 +1,116 @@ +# Transport Modes Guide + +This page focuses on the transport behavior switches that are spread across the SDK APIs: + +- `EncryptionMode` +- `GiftWrapMode` +- stateless mode via `NostrClientTransportConfig::with_stateless()` + +The existing guides mention these knobs in context. This page collects them into one operational reference. + +## Encryption modes + +`EncryptionMode` controls whether the transport accepts or emits plaintext vs encrypted direct traffic. + +The three modes are: + +- `Optional`: mirror mode; encrypted traffic is allowed and plaintext is also allowed +- `Required`: reject plaintext direct traffic and require encrypted direct traffic +- `Disabled`: reject encrypted direct traffic and use plaintext only + +The exact enforcement is implemented in the client and server transport layers. + +### What `Optional` really means + +`Optional` does not mean "always plaintext is fine" or "always encrypt everything". + +At the base transport level, the outgoing encryption choice for direct traffic is mirror-oriented: + +- `EncryptionMode::Required` always encrypts direct traffic +- `EncryptionMode::Disabled` never encrypts direct traffic +- `EncryptionMode::Optional` uses the known encryption state of the peer interaction when available + +## Gift-wrap modes + +`GiftWrapMode` only matters when traffic is encrypted. + +The three modes are: + +- `Optional`: accept both persistent and ephemeral gift wraps; prefer persistent until ephemeral support is known +- `Ephemeral`: require kind `21059` +- `Persistent`: require kind `1059` + +The acceptance rules are defined by `GiftWrapMode::allows_kind()`, and whether a mode can advertise or choose ephemeral wrapping is defined by `GiftWrapMode::supports_ephemeral()`. + +### Client outbound behavior + +Client selection follows this behavior: + +- `Persistent` always uses persistent gift wrap +- `Ephemeral` always uses ephemeral gift wrap +- `Optional` uses persistent first, then switches to ephemeral once peer support is learned + +### Server outbound behavior + +Server response and notification selection follow the current transport implementation. + +Important server rules: + +- if a correlated encrypted request used a valid wrap kind, the server mirrors it when possible +- for notifications, learned client support for ephemeral gift wrap can change the fallback behavior +- `Optional` still falls back to persistent when no stronger signal exists + +## Stateless mode + +Stateless mode is client-only and is controlled by `NostrClientTransportConfig::with_stateless()`. + +It changes initialization behavior only: + +- outgoing `initialize` is emulated locally +- outgoing `notifications/initialized` is suppressed +- later requests still go through the normal Nostr transport path + +See the dedicated stateless mode guide in this docs directory. + +## Capability tags and mode signaling + +Mode choices affect discovery and capability tags. + +### Client-side signaling + +Client tags follow this behavior: + +- if encryption is not disabled, the client advertises encryption support +- if gift-wrap mode is not persistent, the client also advertises ephemeral gift-wrap support + +### Server-side signaling + +Server announcement tags follow this behavior: + +- if encryption is not disabled, the server advertises encryption support +- if gift-wrap mode supports ephemeral wrapping, the server also advertises ephemeral support + +This is why `GiftWrapMode::Optional` and `GiftWrapMode::Ephemeral` both advertise ephemeral support, while `GiftWrapMode::Persistent` does not. + +## Example configurations + +```rust +use contextvm_sdk::{EncryptionMode, GiftWrapMode}; +use contextvm_sdk::transport::client::NostrClientTransportConfig; + +let interoperable = NostrClientTransportConfig::default() + .with_server_pubkey("") + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional); + +let strict_encrypted = NostrClientTransportConfig::default() + .with_server_pubkey("") + .with_encryption_mode(EncryptionMode::Required) + .with_gift_wrap_mode(GiftWrapMode::Persistent); + +let stateless_client = NostrClientTransportConfig::default() + .with_server_pubkey("") + .with_encryption_mode(EncryptionMode::Optional) + .with_gift_wrap_mode(GiftWrapMode::Optional) + .with_stateless(true); +``` diff --git a/docs/transports.md b/docs/transports.md index 193a911..f007221 100644 --- a/docs/transports.md +++ b/docs/transports.md @@ -43,11 +43,9 @@ async fn main() -> contextvm_sdk::Result<()> { let keys = signer::generate(); let mut transport = NostrClientTransport::new( keys, - NostrClientTransportConfig { - relay_urls: vec!["wss://relay.damus.io".to_string()], - server_pubkey: "".to_string(), - ..Default::default() - }, + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://relay.damus.io".to_string()]) + .with_server_pubkey(""), ) .await?; @@ -86,10 +84,7 @@ async fn main() -> contextvm_sdk::Result<()> { let keys = signer::generate(); let mut transport = NostrServerTransport::new( keys, - NostrServerTransportConfig { - is_announced_server: true, - ..Default::default() - }, + NostrServerTransportConfig::default().with_announced_server(true), ) .await?; From c7fe3acc989a841d557e5f7ac3f06335473cfa68 Mon Sep 17 00:00:00 2001 From: ContextVM Date: Fri, 8 May 2026 12:09:00 +0200 Subject: [PATCH 075/116] chore(changelog): document 0.1.1 release Release 0.1.1 includes E2E integration test coverage, test-utils feature with MockRelayPool export, RMCP stateless CEP-35 lifecycle bridgin, crates.io metadata correction, rmcp feature enabled by default, and improved public API exports. --- CHANGELOG.md | 12 ++++++++++++ contextvm-docs | 1 + rust-sdk | 1 + 3 files changed, 14 insertions(+) create mode 160000 contextvm-docs create mode 160000 rust-sdk diff --git a/CHANGELOG.md b/CHANGELOG.md index acf7e70..0b970c5 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -2,10 +2,22 @@ ## [0.1.1] - 2026-05-08 +### Added + +- End-to-end happy-path integration coverage for the full in-memory SDK stack, exercising RMCP handlers through `NostrServerWorker`, `NostrServerTransport`, `MockRelayPool`, `NostrClientTransport`, and the RMCP client without requiring a live network +- New `test-utils` feature for downstream integration tests that need access to `MockRelayPool` +- Public re-export of the relay module so downstream crates can use `MockRelayPool` through the crate root when `test-utils` is enabled + ### Fixed +- RMCP stateless CEP-35 requests are now bridged into the RMCP lifecycle correctly by injecting synthetic initialization for first contact, allowing stateless clients to call tools and resources without an explicit `initialize` round-trip - Corrected crates.io metadata (repository URL, keywords, categories, homepage, documentation) +### Changed + +- Enabled the `rmcp` feature by default to make the native RMCP transport integration available out of the box +- Improved public API exports for transport, relay, gateway, and proxy types to simplify downstream usage + ## [0.1.0] - 2026-05-07 ### Added diff --git a/contextvm-docs b/contextvm-docs new file mode 160000 index 0000000..75757ed --- /dev/null +++ b/contextvm-docs @@ -0,0 +1 @@ +Subproject commit 75757edcfa00695b0c8ec65b89cb842009043e5b diff --git a/rust-sdk b/rust-sdk new file mode 160000 index 0000000..3bf5298 --- /dev/null +++ b/rust-sdk @@ -0,0 +1 @@ +Subproject commit 3bf5298972d34e88bc3666ad601c8752718fc605 From f53ccfe447ca08938e7b009a3be043e5654d2cdf Mon Sep 17 00:00:00 2001 From: ContextVM Date: Fri, 8 May 2026 12:10:10 +0200 Subject: [PATCH 076/116] build(config): remove hyphens from package keywords --- Cargo.toml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Cargo.toml b/Cargo.toml index cf0537d..351f02f 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -9,7 +9,7 @@ readme = "README.md" repository = "https://github.com/ContextVM/rs-sdk" homepage = "https://contextvm.org" documentation = "https://docs.rs/contextvm-sdk" -keywords = ["nostr", "mcp", "model-context-protocol", "decentralized", "ai"] +keywords = ["nostr", "mcp", "modelcontextprotocol", "decentralized", "ai"] categories = ["network-programming", "api-bindings", "asynchronous"] [dependencies] From d22702ce867880ed58a7ae0df658f4a4bf60dc5f Mon Sep 17 00:00:00 2001 From: ContextVM Date: Fri, 8 May 2026 15:30:56 +0200 Subject: [PATCH 077/116] docs: update configuration examples to use constructor pattern Updates documentation examples to use GatewayConfig::new() and ProxyConfig::new() constructors instead of struct literals, aligning with the builder pattern changes in the codebase. Also updates Implementation struct usage to use explicit fields instead of builder methods. --- docs/gateway.md | 20 ++++++++++---------- docs/proxy.md | 10 +++++----- docs/server-transport.md | 13 +++++++++---- 3 files changed, 24 insertions(+), 19 deletions(-) diff --git a/docs/gateway.md b/docs/gateway.md index bcec813..ac23631 100644 --- a/docs/gateway.md +++ b/docs/gateway.md @@ -32,16 +32,16 @@ use contextvm_sdk::transport::server::NostrServerTransportConfig; async fn main() -> contextvm_sdk::Result<()> { let keys = signer::generate(); - let config = GatewayConfig { - nostr_config: NostrServerTransportConfig::default() - .with_relay_urls(vec!["wss://relay.damus.io".to_string()]) - .with_server_info( - ServerInfo::default() - .with_name("Echo Server".to_string()) - .with_about("A simple ContextVM server".to_string()), - ) - .with_announced_server(true), - }; + let nostr_config = NostrServerTransportConfig::default() + .with_relay_urls(vec!["wss://relay.damus.io".to_string()]) + .with_server_info( + ServerInfo::default() + .with_name("Echo Server".to_string()) + .with_about("A simple ContextVM server".to_string()), + ) + .with_announced_server(true); + + let config = GatewayConfig::new(nostr_config); let mut gateway = NostrMCPGateway::new(keys, config).await?; let mut rx = gateway.start().await?; diff --git a/docs/proxy.md b/docs/proxy.md index 0ef6167..d1c3469 100644 --- a/docs/proxy.md +++ b/docs/proxy.md @@ -42,11 +42,11 @@ use contextvm_sdk::transport::client::NostrClientTransportConfig; async fn main() -> contextvm_sdk::Result<()> { let keys = signer::from_sk("")?; - let config = ProxyConfig { - nostr_config: NostrClientTransportConfig::default() - .with_relay_urls(vec!["wss://relay.damus.io".to_string()]) - .with_server_pubkey(""), - }; + let nostr_config = NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://relay.damus.io".to_string()]) + .with_server_pubkey(""); + + let config = ProxyConfig::new(nostr_config); let mut proxy = NostrMCPProxy::new(keys, config).await?; let mut rx = proxy.start().await?; diff --git a/docs/server-transport.md b/docs/server-transport.md index b5e270c..6ece1b2 100644 --- a/docs/server-transport.md +++ b/docs/server-transport.md @@ -82,9 +82,14 @@ impl ServerHandler for DemoServer { rmcp::model::ServerInfo { protocol_version: ProtocolVersion::LATEST, capabilities: ServerCapabilities::builder().enable_tools().build(), - server_info: Implementation::new("contextvm-native-echo", "0.1.0") - .with_title("ContextVM Native Echo Server") - .with_description("Native rmcp echo server over ContextVM/Nostr"), + server_info: Implementation { + name: "contextvm-native-echo".to_string(), + title: Some("ContextVM Native Echo Server".to_string()), + version: "0.1.0".to_string(), + description: Some("Native rmcp echo server over ContextVM/Nostr".to_string()), + icons: None, + website_url: None, + }, instructions: Some("Call the echo tool with a message string".to_string()), } } @@ -129,7 +134,7 @@ async fn main() -> anyhow::Result<()> { } ``` -This follows the same flow as [`examples/native_echo_server.rs`](examples/native_echo_server.rs:1), while keeping the snippet compatible for external crate users by avoiding struct literals on `#[non_exhaustive]` types. +This follows the same flow as the repository's native echo server example. ## What the transport adds From ecdf6ed3aa5cfffb67aadc6d4ff21bcef844ceef Mon Sep 17 00:00:00 2001 From: Harsh Date: Fri, 8 May 2026 23:13:10 +0530 Subject: [PATCH 078/116] docs: add missing_docs lint and close all rustdoc coverage gaps --- src/core/constants.rs | 2 ++ src/core/types.rs | 9 ++++----- src/encryption/mod.rs | 6 ++---- src/lib.rs | 23 ++++++++++++++++++++++- src/transport/client/correlation_store.rs | 3 +++ src/transport/server/correlation_store.rs | 2 ++ src/transport/server/session_store.rs | 4 ++++ 7 files changed, 39 insertions(+), 10 deletions(-) diff --git a/src/core/constants.rs b/src/core/constants.rs index dd8cc08..6e2a117 100644 --- a/src/core/constants.rs +++ b/src/core/constants.rs @@ -106,6 +106,7 @@ pub const UNENCRYPTED_KINDS: &[u16] = &[ PROMPTS_LIST_KIND, ]; +/// Return the latest MCP protocol version string #[cfg(feature = "rmcp")] pub fn mcp_protocol_version() -> &'static str { use std::sync::OnceLock; @@ -115,6 +116,7 @@ pub fn mcp_protocol_version() -> &'static str { .as_str() } +/// Return the latest MCP protocol version string #[cfg(not(feature = "rmcp"))] pub const fn mcp_protocol_version() -> &'static str { "2025-11-25" diff --git a/src/core/types.rs b/src/core/types.rs index 1860369..12cd69b 100644 --- a/src/core/types.rs +++ b/src/core/types.rs @@ -24,11 +24,10 @@ pub enum EncryptionMode { Disabled, } -// Gift-wrap mode (CEP-19) - -// Gift-wrap policy for encrypted transport communication (CEP-19). -// Controls whether encrypted messages use persistent gift wraps (kind `1059`), -// ephemeral gift wraps (kind `21059`), or adapt based on peer support. +/// Gift-wrap policy for encrypted transport communication (CEP-19) +/// +/// Controls whether encrypted messages use persistent gift wraps (kind `1059`), +/// ephemeral gift wraps (kind `21059`), or adapt based on peer support. #[derive(Debug, Clone, Copy, Default, PartialEq, Eq, Serialize, Deserialize)] #[serde(rename_all = "lowercase")] pub enum GiftWrapMode { diff --git a/src/encryption/mod.rs b/src/encryption/mod.rs index 6a6d4bc..913031d 100644 --- a/src/encryption/mod.rs +++ b/src/encryption/mod.rs @@ -37,8 +37,7 @@ where .map_err(|e| Error::Decryption(e.to_string())) } -// Decrypt a single-layer NIP-44 gift wrap (kind 1059). - +/// Decrypt a single-layer NIP-44 gift wrap (kind 1059) pub async fn decrypt_gift_wrap_single_layer(signer: &T, event: &Event) -> Result where T: NostrSigner, @@ -47,8 +46,7 @@ where decrypt_nip44(signer, &sender_pubkey, &event.content).await } -// Create a single-layer NIP-44 gift wrap (kind 1059). - +/// Create a single-layer NIP-44 gift wrap (kind 1059) pub async fn gift_wrap_single_layer( _signer: &T, recipient: &PublicKey, diff --git a/src/lib.rs b/src/lib.rs index 29d5672..493a901 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -1,3 +1,4 @@ +#![warn(missing_docs)] //! # ContextVM SDK for Rust //! //! A complete Rust implementation of the [ContextVM protocol](https://contextvm.org), @@ -36,36 +37,56 @@ //! use contextvm_sdk::signer; //! ``` +/// Core types, constants, serializers, and validation pub mod core; +/// Server and capability discovery on the Nostr network pub mod discovery; +/// NIP-44 encryption and NIP-59 gift wrapping pub mod encryption; +/// Gateway bridging a local MCP server to Nostr pub mod gateway; +/// Proxy connecting to a remote MCP server via Nostr pub mod proxy; +/// Nostr relay pool management pub mod relay; +/// Nostr signer utilities and key management pub mod signer; +/// Client and server MCP-over-Nostr transports pub mod transport; +/// rmcp Worker integration for ContextVM transports #[cfg(feature = "rmcp")] pub mod rmcp_transport; -// Re-export commonly used types +// ── Core types and error handling ──────────────────────────────────── pub use core::error::{Error, Result}; pub use core::types::{ CapabilityExclusion, ClientSession, EncryptionMode, GiftWrapMode, JsonRpcError, JsonRpcErrorResponse, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, ServerInfo, }; + +// ── Discovery ──────────────────────────────────────────────────────── pub use discovery::ServerAnnouncement; + +// ── Relay pool ─────────────────────────────────────────────────────── #[cfg(any(test, feature = "test-utils"))] pub use relay::mock::MockRelayPool; pub use relay::{RelayPool, RelayPoolTrait}; + +// ── Transport (client) ────────────────────────────────────────────── pub use transport::client::{ ClientCorrelationStore, NostrClientTransport, NostrClientTransportConfig, }; + +// ── Transport (discovery tags) ────────────────────────────────────── pub use transport::discovery_tags::{DiscoveredPeerCapabilities, PeerCapabilities}; + +// ── Transport (server) ────────────────────────────────────────────── pub use transport::server::{ IncomingRequest, NostrServerTransport, NostrServerTransportConfig, RouteEntry, ServerEventRouteStore, SessionSnapshot, SessionStore, }; +// ── rmcp re-export ────────────────────────────────────────────────── #[cfg(feature = "rmcp")] pub use rmcp; diff --git a/src/transport/client/correlation_store.rs b/src/transport/client/correlation_store.rs index 0fbcd9f..a0678b6 100644 --- a/src/transport/client/correlation_store.rs +++ b/src/transport/client/correlation_store.rs @@ -36,6 +36,7 @@ impl Default for ClientCorrelationStore { } impl ClientCorrelationStore { + /// Create a new store with the default capacity pub fn new() -> Self { Self::with_max_pending(DEFAULT_LRU_SIZE) } @@ -76,6 +77,7 @@ impl ClientCorrelationStore { .is_some_and(|r| r.is_initialize) } + /// Check whether a pending request exists for the given event ID pub async fn contains(&self, event_id: &str) -> bool { self.pending_requests.read().await.contains(event_id) } @@ -118,6 +120,7 @@ impl ClientCorrelationStore { count } + /// Remove all pending requests from the store pub async fn clear(&self) { self.pending_requests.write().await.clear(); } diff --git a/src/transport/server/correlation_store.rs b/src/transport/server/correlation_store.rs index c25404e..3a68ddb 100644 --- a/src/transport/server/correlation_store.rs +++ b/src/transport/server/correlation_store.rs @@ -84,6 +84,7 @@ impl Default for ServerEventRouteStore { } impl ServerEventRouteStore { + /// Create a new store with the default capacity pub fn new() -> Self { Self { inner: Arc::new(RwLock::new(Inner::new(DEFAULT_LRU_SIZE))), @@ -246,6 +247,7 @@ impl ServerEventRouteStore { expired_keys } + /// Remove all route entries and secondary indexes pub async fn clear(&self) { let mut inner = self.inner.write().await; inner.routes.clear(); diff --git a/src/transport/server/session_store.rs b/src/transport/server/session_store.rs index a37d53a..a208789 100644 --- a/src/transport/server/session_store.rs +++ b/src/transport/server/session_store.rs @@ -227,9 +227,13 @@ impl SessionStore { /// through the async API boundary). #[derive(Debug, Clone, PartialEq, Eq)] pub struct SessionSnapshot { + /// Whether the MCP `initialize` handshake has completed pub is_initialized: bool, + /// Whether the session is using NIP-44 encrypted transport pub is_encrypted: bool, + /// Whether common discovery tags have been sent for this session pub has_sent_common_tags: bool, + /// Whether the peer advertised support for ephemeral gift wraps (CEP-19) pub supports_ephemeral_gift_wrap: bool, } From a2c69656bbfb5306409ad680b646f1807e8377e6 Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 14 May 2026 04:05:19 +0530 Subject: [PATCH 079/116] refactor: extract AnnouncementManager from NostrServerTransport (CEP-35) --- src/transport/server/announcement_manager.rs | 565 +++++++++++++++++++ src/transport/server/mod.rs | 333 +++-------- 2 files changed, 642 insertions(+), 256 deletions(-) create mode 100644 src/transport/server/announcement_manager.rs diff --git a/src/transport/server/announcement_manager.rs b/src/transport/server/announcement_manager.rs new file mode 100644 index 0000000..1abf888 --- /dev/null +++ b/src/transport/server/announcement_manager.rs @@ -0,0 +1,565 @@ +//! Announcement tag management for the server transport. +//! +//! Encapsulates tag composition, caching, and publishing for CEP-6 server +//! announcements (kinds 11316–11320) and CEP-35 first-response discovery. + +use std::sync::{Arc, Mutex}; + +use nostr_sdk::prelude::*; + +use crate::core::constants::*; +use crate::core::error::{Error, Result}; +use crate::core::types::*; +use crate::relay::RelayPoolTrait; + +/// Manages tag composition and publishing for server announcements. +/// +/// Handles CEP-6 announcement event publishing (kinds 11316–11320) and +/// CEP-35 common tag composition for first-response discovery replay. +/// Tag accessors use interior-mutability caching so callers may hold `&self`. +pub(crate) struct AnnouncementManager { + /// Shared relay pool for publishing announcement events. + relay_pool: Arc, + /// Server metadata for announcement tags. + server_info: Option, + /// Encryption mode — determines whether encryption tags are emitted. + encryption_mode: EncryptionMode, + /// Gift-wrap mode — determines whether ephemeral tag is emitted. + gift_wrap_mode: GiftWrapMode, + /// User-provided extra tags (e.g. PMI discovery for CEP-8). + extra_common_tags: Vec, + /// Transport-owned internal tags (future CEP-22 oversized support signal). + internal_common_tags: Vec, + /// CEP-8 pricing tags for capability list responses. + pricing_tags: Vec, + /// Cached result of `get_common_tags()`. Invalidated by tag setters. + cached_common_tags: Mutex>>, +} + +impl AnnouncementManager { + /// Create a new announcement manager. + pub fn new( + relay_pool: Arc, + server_info: Option, + encryption_mode: EncryptionMode, + gift_wrap_mode: GiftWrapMode, + ) -> Self { + Self { + relay_pool, + server_info, + encryption_mode, + gift_wrap_mode, + extra_common_tags: Vec::new(), + internal_common_tags: Vec::new(), + pricing_tags: Vec::new(), + cached_common_tags: Mutex::new(None), + } + } + + // ── Tag accessors ────────────────────────────────────────────── + + /// Build server identity tags (name, about, website, picture). + pub fn get_server_info_tags(&self) -> Vec { + let mut tags = Vec::new(); + if let Some(ref info) = self.server_info { + if let Some(ref name) = info.name { + tags.push(Tag::custom( + TagKind::Custom(tags::NAME.into()), + vec![name.clone()], + )); + } + if let Some(ref about) = info.about { + tags.push(Tag::custom( + TagKind::Custom(tags::ABOUT.into()), + vec![about.clone()], + )); + } + if let Some(ref website) = info.website { + tags.push(Tag::custom( + TagKind::Custom(tags::WEBSITE.into()), + vec![website.clone()], + )); + } + if let Some(ref picture) = info.picture { + tags.push(Tag::custom( + TagKind::Custom(tags::PICTURE.into()), + vec![picture.clone()], + )); + } + } + tags + } + + /// Build capability tags based on encryption and gift-wrap mode. + pub fn get_capability_tags(&self) -> Vec { + let mut tags = Vec::new(); + if self.encryption_mode != EncryptionMode::Disabled { + tags.push(Tag::custom( + TagKind::Custom(tags::SUPPORT_ENCRYPTION.into()), + Vec::::new(), + )); + if self.gift_wrap_mode.supports_ephemeral() { + tags.push(Tag::custom( + TagKind::Custom(tags::SUPPORT_ENCRYPTION_EPHEMERAL.into()), + Vec::::new(), + )); + } + } + tags + } + + /// Returns combined common tags: server info + capability + extra + internal. + /// + /// Results are cached; the cache is invalidated when extra or internal + /// common tags are updated via their setters. + pub fn get_common_tags(&self) -> Vec { + let mut cache = self + .cached_common_tags + .lock() + .unwrap_or_else(|e| e.into_inner()); + if let Some(ref cached) = *cache { + return cached.clone(); + } + let mut tags = self.get_server_info_tags(); + tags.extend(self.get_capability_tags()); + tags.extend(self.extra_common_tags.iter().cloned()); + tags.extend(self.internal_common_tags.iter().cloned()); + *cache = Some(tags.clone()); + tags + } + + /// Returns a reference to the current pricing tags. + #[allow(dead_code)] // API reserved for CEP-8 pricing integration + pub fn get_pricing_tags(&self) -> &[Tag] { + &self.pricing_tags + } + + /// Build tags for a specific announcement kind. + /// + /// Kind 11316 (server announcement) receives common + pricing tags. + /// Kinds 11317–11320 (capability lists) receive pricing tags only. + pub fn get_announcement_tags(&self, kind: u16) -> Vec { + if kind == SERVER_ANNOUNCEMENT_KIND { + let mut tags = self.get_common_tags(); + tags.extend(self.pricing_tags.iter().cloned()); + tags + } else { + self.pricing_tags.clone() + } + } + + // ── Setters ──────────────────────────────────────────────────── + + /// Set user-provided extra common tags (e.g. PMI discovery for CEP-8). + /// + /// Invalidates the common tags cache. + pub fn set_extra_common_tags(&mut self, tags: Vec) { + self.extra_common_tags = tags; + *self + .cached_common_tags + .lock() + .unwrap_or_else(|e| e.into_inner()) = None; + } + + /// Set transport-owned internal common tags (e.g. CEP-22 oversized support). + /// + /// Invalidates the common tags cache. + #[allow(dead_code)] // API reserved for CEP-22 oversized transfer integration + pub fn set_internal_common_tags(&mut self, tags: Vec) { + self.internal_common_tags = tags; + *self + .cached_common_tags + .lock() + .unwrap_or_else(|e| e.into_inner()) = None; + } + + /// Set CEP-8 pricing tags for capability list responses. + /// + /// Does not invalidate the common tags cache (pricing is separate). + pub fn set_pricing_tags(&mut self, tags: Vec) { + self.pricing_tags = tags; + } + + // ── Publish methods ──────────────────────────────────────────── + + /// Publish server announcement (kind 11316). + pub async fn announce(&self) -> Result { + let info = self + .server_info + .as_ref() + .ok_or_else(|| Error::Other("No server info configured".to_string()))?; + + let content = serde_json::to_string(info)?; + let tags = self.get_announcement_tags(SERVER_ANNOUNCEMENT_KIND); + let builder = EventBuilder::new(Kind::Custom(SERVER_ANNOUNCEMENT_KIND), content).tags(tags); + self.relay_pool.publish(builder).await + } + + /// Publish tools list (kind 11317). + pub async fn publish_tools(&self, tools: Vec) -> Result { + let content = serde_json::json!({ "tools": tools }); + let builder = EventBuilder::new( + Kind::Custom(TOOLS_LIST_KIND), + serde_json::to_string(&content)?, + ) + .tags(self.pricing_tags.iter().cloned()); + self.relay_pool.publish(builder).await + } + + /// Publish resources list (kind 11318). + pub async fn publish_resources(&self, resources: Vec) -> Result { + let content = serde_json::json!({ "resources": resources }); + let builder = EventBuilder::new( + Kind::Custom(RESOURCES_LIST_KIND), + serde_json::to_string(&content)?, + ) + .tags(self.pricing_tags.iter().cloned()); + self.relay_pool.publish(builder).await + } + + /// Publish prompts list (kind 11320). + pub async fn publish_prompts(&self, prompts: Vec) -> Result { + let content = serde_json::json!({ "prompts": prompts }); + let builder = EventBuilder::new( + Kind::Custom(PROMPTS_LIST_KIND), + serde_json::to_string(&content)?, + ) + .tags(self.pricing_tags.iter().cloned()); + self.relay_pool.publish(builder).await + } + + /// Publish resource templates list (kind 11319). + pub async fn publish_resource_templates( + &self, + templates: Vec, + ) -> Result { + let content = serde_json::json!({ "resourceTemplates": templates }); + let builder = EventBuilder::new( + Kind::Custom(RESOURCETEMPLATES_LIST_KIND), + serde_json::to_string(&content)?, + ) + .tags(self.pricing_tags.iter().cloned()); + self.relay_pool.publish(builder).await + } + + /// Delete server announcements (NIP-09 kind 5). + pub async fn delete_announcements(&self, reason: &str) -> Result<()> { + for kind in UNENCRYPTED_KINDS { + let builder = EventBuilder::new(Kind::Custom(5), reason).tag(Tag::custom( + TagKind::Custom("k".into()), + vec![kind.to_string()], + )); + self.relay_pool.publish(builder).await?; + } + Ok(()) + } + + /// Publish tools list from rmcp typed tool descriptors. + #[cfg(feature = "rmcp")] + pub async fn publish_tools_typed(&self, tools: Vec) -> Result { + let tools = tools + .into_iter() + .map(serde_json::to_value) + .collect::, _>>()?; + self.publish_tools(tools).await + } + + /// Publish resources list from rmcp typed resource descriptors. + #[cfg(feature = "rmcp")] + pub async fn publish_resources_typed( + &self, + resources: Vec, + ) -> Result { + let resources = resources + .into_iter() + .map(serde_json::to_value) + .collect::, _>>()?; + self.publish_resources(resources).await + } + + /// Publish prompts list from rmcp typed prompt descriptors. + #[cfg(feature = "rmcp")] + pub async fn publish_prompts_typed( + &self, + prompts: Vec, + ) -> Result { + let prompts = prompts + .into_iter() + .map(serde_json::to_value) + .collect::, _>>()?; + self.publish_prompts(prompts).await + } + + /// Publish resource templates list from rmcp typed template descriptors. + #[cfg(feature = "rmcp")] + pub async fn publish_resource_templates_typed( + &self, + templates: Vec, + ) -> Result { + let templates = templates + .into_iter() + .map(serde_json::to_value) + .collect::, _>>()?; + self.publish_resource_templates(templates).await + } + + // ── Event loop support ───────────────────────────────────────── + + /// Snapshot the tag state needed by the event loop. + /// + /// Returns a lightweight, cloneable copy of the fields the event loop + /// needs for `append_common_response_tags` without holding a reference + /// to the full manager. + pub fn common_tags_snapshot(&self) -> CommonTagsSnapshot { + CommonTagsSnapshot { + server_info: self.server_info.clone(), + extra_common_tags: self.extra_common_tags.clone(), + encryption_mode: self.encryption_mode, + gift_wrap_mode: self.gift_wrap_mode, + } + } +} + +/// Cloneable snapshot of tag-building state for the event loop. +/// +/// Passed into the static `event_loop` function so it can append discovery +/// tags on first-response without holding a reference to the full manager. +#[derive(Clone)] +pub(crate) struct CommonTagsSnapshot { + /// Server metadata for name tag. + pub server_info: Option, + /// User-provided extra common tags. + pub extra_common_tags: Vec, + /// Encryption mode for capability tag decisions. + pub encryption_mode: EncryptionMode, + /// Gift-wrap mode for ephemeral tag decisions. + pub gift_wrap_mode: GiftWrapMode, +} + +impl CommonTagsSnapshot { + /// Append server capability discovery tags to the given tag vec. + /// + /// Used in the event loop for first-response tags on announced-server + /// unauthorized error responses. + pub fn append_common_response_tags(&self, tags: &mut Vec) { + if self.encryption_mode != EncryptionMode::Disabled { + tags.push(Tag::custom( + TagKind::Custom(tags::SUPPORT_ENCRYPTION.into()), + Vec::::new(), + )); + if self.gift_wrap_mode.supports_ephemeral() { + tags.push(Tag::custom( + TagKind::Custom(tags::SUPPORT_ENCRYPTION_EPHEMERAL.into()), + Vec::::new(), + )); + } + } + if let Some(ref info) = self.server_info { + if let Some(ref name) = info.name { + tags.push(Tag::custom( + TagKind::Custom(tags::NAME.into()), + vec![name.clone()], + )); + } + } + tags.extend(self.extra_common_tags.iter().cloned()); + } +} + +#[cfg(test)] +mod tests { + use super::*; + + fn make_manager( + encryption_mode: EncryptionMode, + gift_wrap_mode: GiftWrapMode, + server_info: Option, + ) -> AnnouncementManager { + // Tests only exercise tag building; relay pool is unused. + use crate::relay::mock::MockRelayPool; + let pool: Arc = Arc::new(MockRelayPool::new()); + AnnouncementManager::new(pool, server_info, encryption_mode, gift_wrap_mode) + } + + // ── 1. Server info tags ──────────────────────────────────────── + + /// Helper: extract the first element (tag name) from a Tag. + fn tag_name(tag: &Tag) -> String { + tag.clone().to_vec().first().cloned().unwrap_or_default() + } + + #[test] + fn server_info_tags_all_fields() { + let info = ServerInfo { + name: Some("Test".into()), + about: Some("A test server".into()), + website: Some("https://example.com".into()), + picture: Some("https://example.com/pic.png".into()), + ..Default::default() + }; + let mgr = make_manager(EncryptionMode::Disabled, GiftWrapMode::Optional, Some(info)); + let tags = mgr.get_server_info_tags(); + assert_eq!(tags.len(), 4); + let names: Vec = tags.iter().map(tag_name).collect(); + assert!(names.contains(&"name".to_string())); + assert!(names.contains(&"about".to_string())); + assert!(names.contains(&"website".to_string())); + assert!(names.contains(&"picture".to_string())); + } + + #[test] + fn server_info_tags_partial() { + let info = ServerInfo { + name: Some("OnlyName".into()), + ..Default::default() + }; + let mgr = make_manager(EncryptionMode::Disabled, GiftWrapMode::Optional, Some(info)); + let tags = mgr.get_server_info_tags(); + assert_eq!(tags.len(), 1); + } + + // ── 3–6. Capability tags ─────────────────────────────────────── + + #[test] + fn capability_tags_encryption_enabled() { + let mgr = make_manager(EncryptionMode::Optional, GiftWrapMode::Persistent, None); + let tags = mgr.get_capability_tags(); + let names: Vec = tags.iter().map(tag_name).collect(); + assert!(names.contains(&tags::SUPPORT_ENCRYPTION.to_string())); + } + + #[test] + fn capability_tags_ephemeral_enabled() { + let mgr = make_manager(EncryptionMode::Optional, GiftWrapMode::Optional, None); + let tags = mgr.get_capability_tags(); + let names: Vec = tags.iter().map(tag_name).collect(); + assert!(names.contains(&tags::SUPPORT_ENCRYPTION_EPHEMERAL.to_string())); + } + + #[test] + fn capability_tags_ephemeral_excluded() { + let mgr = make_manager(EncryptionMode::Optional, GiftWrapMode::Persistent, None); + let tags = mgr.get_capability_tags(); + let names: Vec = tags.iter().map(tag_name).collect(); + assert!( + !names.contains(&tags::SUPPORT_ENCRYPTION_EPHEMERAL.to_string()), + "Persistent mode should not include ephemeral tag" + ); + } + + #[test] + fn capability_tags_encryption_disabled() { + let mgr = make_manager(EncryptionMode::Disabled, GiftWrapMode::Optional, None); + let tags = mgr.get_capability_tags(); + assert!( + tags.is_empty(), + "Disabled encryption should produce no capability tags" + ); + } + + // ── 7. Caching ───────────────────────────────────────────────── + + #[test] + fn common_tags_cached() { + let info = ServerInfo { + name: Some("Cache".into()), + ..Default::default() + }; + let mgr = make_manager(EncryptionMode::Optional, GiftWrapMode::Optional, Some(info)); + let first = mgr.get_common_tags(); + let second = mgr.get_common_tags(); + assert_eq!(first.len(), second.len()); + // Verify cache is populated + let cache = mgr.cached_common_tags.lock().unwrap(); + assert!( + cache.is_some(), + "Cache should be populated after get_common_tags" + ); + } + + // ── 8. Cache invalidation ────────────────────────────────────── + + #[test] + fn set_extra_common_tags_invalidates_cache() { + let mgr_info = ServerInfo { + name: Some("Extra".into()), + ..Default::default() + }; + let mut mgr = make_manager( + EncryptionMode::Disabled, + GiftWrapMode::Optional, + Some(mgr_info), + ); + + // Populate cache + let before = mgr.get_common_tags(); + assert!(!before.is_empty()); + + // Set extra tags — should invalidate and include new tags + let extra = vec![Tag::custom( + TagKind::Custom("pmi".into()), + vec!["lightning".to_string()], + )]; + mgr.set_extra_common_tags(extra); + let after = mgr.get_common_tags(); + assert_eq!(after.len(), before.len() + 1); + } + + // ── 9. Pricing separate from common ──────────────────────────── + + #[test] + fn pricing_tags_separate_from_common() { + let mut mgr = make_manager(EncryptionMode::Optional, GiftWrapMode::Optional, None); + mgr.set_pricing_tags(vec![Tag::custom( + TagKind::Custom(tags::CAPABILITY.into()), + vec![ + "tool:echo".to_string(), + "100".to_string(), + "sats".to_string(), + ], + )]); + let common = mgr.get_common_tags(); + let names: Vec = common.iter().map(tag_name).collect(); + assert!( + !names.contains(&tags::CAPABILITY.to_string()), + "get_common_tags() should not include pricing tags" + ); + } + + // ── 10. Announcement tags by kind ────────────────────────────── + + #[test] + fn announcement_tags_kind_11316_includes_pricing() { + let info = ServerInfo { + name: Some("Ann".into()), + ..Default::default() + }; + let mut mgr = make_manager(EncryptionMode::Optional, GiftWrapMode::Optional, Some(info)); + mgr.set_pricing_tags(vec![Tag::custom( + TagKind::Custom(tags::CAPABILITY.into()), + vec![ + "tool:echo".to_string(), + "100".to_string(), + "sats".to_string(), + ], + )]); + + let ann_tags = mgr.get_announcement_tags(SERVER_ANNOUNCEMENT_KIND); + let ann_names: Vec = ann_tags.iter().map(tag_name).collect(); + assert!( + ann_names.contains(&tags::CAPABILITY.to_string()), + "Kind 11316 should include pricing tags" + ); + + let tools_tags = mgr.get_announcement_tags(TOOLS_LIST_KIND); + let tools_names: Vec = tools_tags.iter().map(tag_name).collect(); + assert!( + !tools_names.contains(&"name".to_string()), + "Kind 11317 should NOT include common tags, only pricing" + ); + assert!( + tools_names.contains(&tags::CAPABILITY.to_string()), + "Kind 11317 should include pricing tags" + ); + } +} diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index e885376..6eef49d 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -4,6 +4,7 @@ //! sessions, handles request/response correlation, and optionally publishes //! server announcements. +pub(crate) mod announcement_manager; pub mod correlation_store; pub mod session_store; @@ -87,10 +88,8 @@ pub struct NostrServerTransport { base: BaseTransport, /// Configuration for this server transport. config: NostrServerTransportConfig, - /// Extra common discovery tags to include in server announcements and first responses. - extra_common_tags: Vec, - /// Pricing tags to include in announcements and capability list responses. - pricing_tags: Vec, + /// Manages tag composition and publishing for CEP-6 announcements and CEP-35 discovery. + announcement_manager: announcement_manager::AnnouncementManager, /// Client sessions. sessions: SessionStore, /// Reverse lookup: event_id → client route. @@ -211,6 +210,12 @@ impl NostrServerTransport { "Created server transport" ); Ok(Self { + announcement_manager: announcement_manager::AnnouncementManager::new( + Arc::clone(&relay_pool), + config.server_info.clone(), + config.encryption_mode, + config.gift_wrap_mode, + ), base: BaseTransport { relay_pool, encryption_mode: config.encryption_mode, @@ -218,8 +223,6 @@ impl NostrServerTransport { }, sessions: SessionStore::with_capacity(config.max_sessions), config, - extra_common_tags: Vec::new(), - pricing_tags: Vec::new(), event_routes: ServerEventRouteStore::new(), request_wrap_kinds: Arc::new(RwLock::new(HashMap::new())), seen_gift_wrap_ids, @@ -248,6 +251,12 @@ impl NostrServerTransport { "Created server transport (with_relay_pool)" ); Ok(Self { + announcement_manager: announcement_manager::AnnouncementManager::new( + Arc::clone(&relay_pool), + config.server_info.clone(), + config.encryption_mode, + config.gift_wrap_mode, + ), base: BaseTransport { relay_pool, encryption_mode: config.encryption_mode, @@ -255,8 +264,6 @@ impl NostrServerTransport { }, sessions: SessionStore::with_capacity(config.max_sessions), config, - extra_common_tags: Vec::new(), - pricing_tags: Vec::new(), request_wrap_kinds: Arc::new(RwLock::new(HashMap::new())), event_routes: ServerEventRouteStore::new(), seen_gift_wrap_ids, @@ -323,8 +330,7 @@ impl NostrServerTransport { let encryption_mode = self.config.encryption_mode; let gift_wrap_mode = self.config.gift_wrap_mode; let is_announced_server = self.config.is_announced_server; - let server_info = self.config.server_info.clone(); - let extra_common_tags = self.extra_common_tags.clone(); + let common_tags_snapshot = self.announcement_manager.common_tags_snapshot(); let seen_gift_wrap_ids = self.seen_gift_wrap_ids.clone(); let event_loop_token = self.cancellation_token.child_token(); @@ -340,8 +346,7 @@ impl NostrServerTransport { encryption_mode, gift_wrap_mode, is_announced_server, - server_info, - extra_common_tags, + common_tags_snapshot, seen_gift_wrap_ids, event_loop_token, ) @@ -657,100 +662,32 @@ impl NostrServerTransport { /// Sets extra discovery tags to include in announcements and first-response discovery replay. pub fn set_announcement_extra_tags(&mut self, tags: Vec) { - self.extra_common_tags = tags; + self.announcement_manager.set_extra_common_tags(tags); } /// Sets pricing tags to include in announcement/list events and capability list responses. pub fn set_announcement_pricing_tags(&mut self, tags: Vec) { - self.pricing_tags = tags; + self.announcement_manager.set_pricing_tags(tags); } /// Publish server announcement (kind 11316). pub async fn announce(&self) -> Result { - let info = self - .config - .server_info - .as_ref() - .ok_or_else(|| Error::Other("No server info configured".to_string()))?; - - let content = serde_json::to_string(info)?; - - let mut tags = Vec::new(); - if let Some(ref name) = info.name { - tags.push(Tag::custom( - TagKind::Custom(tags::NAME.into()), - vec![name.clone()], - )); - } - if let Some(ref about) = info.about { - tags.push(Tag::custom( - TagKind::Custom(tags::ABOUT.into()), - vec![about.clone()], - )); - } - if let Some(ref website) = info.website { - tags.push(Tag::custom( - TagKind::Custom(tags::WEBSITE.into()), - vec![website.clone()], - )); - } - if let Some(ref picture) = info.picture { - tags.push(Tag::custom( - TagKind::Custom(tags::PICTURE.into()), - vec![picture.clone()], - )); - } - if self.config.encryption_mode != EncryptionMode::Disabled { - tags.push(Tag::custom( - TagKind::Custom(tags::SUPPORT_ENCRYPTION.into()), - Vec::::new(), - )); - if self.config.gift_wrap_mode.supports_ephemeral() { - tags.push(Tag::custom( - TagKind::Custom(tags::SUPPORT_ENCRYPTION_EPHEMERAL.into()), - Vec::::new(), - )); - } - } - tags.extend(self.extra_common_tags.iter().cloned()); - tags.extend(self.pricing_tags.iter().cloned()); - - let builder = EventBuilder::new(Kind::Custom(SERVER_ANNOUNCEMENT_KIND), content).tags(tags); - - self.base.relay_pool.publish(builder).await + self.announcement_manager.announce().await } /// Publish tools list (kind 11317). pub async fn publish_tools(&self, tools: Vec) -> Result { - let content = serde_json::json!({ "tools": tools }); - let builder = EventBuilder::new( - Kind::Custom(TOOLS_LIST_KIND), - serde_json::to_string(&content)?, - ) - .tags(self.pricing_tags.iter().cloned()); - self.base.relay_pool.publish(builder).await + self.announcement_manager.publish_tools(tools).await } /// Publish resources list (kind 11318). pub async fn publish_resources(&self, resources: Vec) -> Result { - let content = serde_json::json!({ "resources": resources }); - let builder = EventBuilder::new( - Kind::Custom(RESOURCES_LIST_KIND), - serde_json::to_string(&content)?, - ) - .tags(self.pricing_tags.iter().cloned()); - self.base.relay_pool.publish(builder).await + self.announcement_manager.publish_resources(resources).await } /// Publish prompts list (kind 11320). pub async fn publish_prompts(&self, prompts: Vec) -> Result { - let content = serde_json::json!({ "prompts": prompts }); - let builder = EventBuilder::new( - Kind::Custom(PROMPTS_LIST_KIND), - serde_json::to_string(&content)?, - ) - .tags(self.pricing_tags.iter().cloned()); - self.base.relay_pool.publish(builder).await + self.announcement_manager.publish_prompts(prompts).await } /// Publish resource templates list (kind 11319). @@ -758,39 +695,20 @@ impl NostrServerTransport { &self, templates: Vec, ) -> Result { - let content = serde_json::json!({ "resourceTemplates": templates }); - let builder = EventBuilder::new( - Kind::Custom(RESOURCETEMPLATES_LIST_KIND), - serde_json::to_string(&content)?, - ) - .tags(self.pricing_tags.iter().cloned()); - self.base.relay_pool.publish(builder).await + self.announcement_manager + .publish_resource_templates(templates) + .await } /// Delete server announcements (NIP-09 kind 5). pub async fn delete_announcements(&self, reason: &str) -> Result<()> { - // We publish kind 5 events for each announcement kind - let pubkey = self.base.get_public_key().await?; - let _pubkey_hex = pubkey.to_hex(); - - for kind in UNENCRYPTED_KINDS { - let builder = EventBuilder::new(Kind::Custom(5), reason).tag(Tag::custom( - TagKind::Custom("k".into()), - vec![kind.to_string()], - )); - self.base.relay_pool.publish(builder).await?; - } - Ok(()) + self.announcement_manager.delete_announcements(reason).await } /// Publish tools list from rmcp typed tool descriptors. #[cfg(feature = "rmcp")] pub async fn publish_tools_typed(&self, tools: Vec) -> Result { - let tools = tools - .into_iter() - .map(serde_json::to_value) - .collect::, _>>()?; - self.publish_tools(tools).await + self.announcement_manager.publish_tools_typed(tools).await } /// Publish resources list from rmcp typed resource descriptors. @@ -799,11 +717,9 @@ impl NostrServerTransport { &self, resources: Vec, ) -> Result { - let resources = resources - .into_iter() - .map(serde_json::to_value) - .collect::, _>>()?; - self.publish_resources(resources).await + self.announcement_manager + .publish_resources_typed(resources) + .await } /// Publish prompts list from rmcp typed prompt descriptors. @@ -812,11 +728,9 @@ impl NostrServerTransport { &self, prompts: Vec, ) -> Result { - let prompts = prompts - .into_iter() - .map(serde_json::to_value) - .collect::, _>>()?; - self.publish_prompts(prompts).await + self.announcement_manager + .publish_prompts_typed(prompts) + .await } /// Publish resource templates list from rmcp typed template descriptors. @@ -825,75 +739,20 @@ impl NostrServerTransport { &self, templates: Vec, ) -> Result { - let templates = templates - .into_iter() - .map(serde_json::to_value) - .collect::, _>>()?; - self.publish_resource_templates(templates).await + self.announcement_manager + .publish_resource_templates_typed(templates) + .await } // ── CEP-35 discovery tag helpers ────────────────────────────── - /// Build common discovery tags from server config. - /// - /// Includes server info tags (name, about, website, picture) and capability - /// tags (support_encryption, support_encryption_ephemeral) based on the - /// transport's encryption and gift-wrap mode. - fn get_common_tags(&self) -> Vec { - let mut tags = Vec::new(); - - // Server info tags - if let Some(ref info) = self.config.server_info { - if let Some(ref name) = info.name { - tags.push(Tag::custom( - TagKind::Custom(tags::NAME.into()), - vec![name.clone()], - )); - } - if let Some(ref about) = info.about { - tags.push(Tag::custom( - TagKind::Custom(tags::ABOUT.into()), - vec![about.clone()], - )); - } - if let Some(ref website) = info.website { - tags.push(Tag::custom( - TagKind::Custom(tags::WEBSITE.into()), - vec![website.clone()], - )); - } - if let Some(ref picture) = info.picture { - tags.push(Tag::custom( - TagKind::Custom(tags::PICTURE.into()), - vec![picture.clone()], - )); - } - } - - // Capability tags - if self.config.encryption_mode != EncryptionMode::Disabled { - tags.push(Tag::custom( - TagKind::Custom(tags::SUPPORT_ENCRYPTION.into()), - Vec::::new(), - )); - if self.config.gift_wrap_mode.supports_ephemeral() { - tags.push(Tag::custom( - TagKind::Custom(tags::SUPPORT_ENCRYPTION_EPHEMERAL.into()), - Vec::::new(), - )); - } - } - - tags - } - /// One-shot: returns common tags if not yet sent to this client, empty otherwise. fn take_pending_server_discovery_tags(&self, session: &mut ClientSession) -> Vec { if session.has_sent_common_tags { return vec![]; } session.has_sent_common_tags = true; - self.get_common_tags() + self.announcement_manager.get_common_tags() } // ── Internal ──────────────────────────────────────────────── @@ -932,8 +791,7 @@ impl NostrServerTransport { encryption_mode: EncryptionMode, gift_wrap_mode: GiftWrapMode, is_announced_server: bool, - server_info: Option, - extra_common_tags: Vec, + common_tags_snapshot: announcement_manager::CommonTagsSnapshot, seen_gift_wrap_ids: Arc>>, cancel: CancellationToken, ) { @@ -1136,13 +994,7 @@ impl NostrServerTransport { .await .is_some_and(|s| s.has_sent_common_tags); if !has_sent { - Self::append_common_response_tags( - &mut tags, - server_info.as_ref(), - &extra_common_tags, - encryption_mode, - gift_wrap_mode, - ); + common_tags_snapshot.append_common_response_tags(&mut tags); sessions.mark_common_tags_sent(&sender_pubkey).await; } @@ -1390,37 +1242,6 @@ impl NostrServerTransport { GiftWrapMode::Optional => Some(GIFT_WRAP_KIND), } } - - /// CEP-19: Append server capability discovery tags to the given tag vec. - fn append_common_response_tags( - tags: &mut Vec, - server_info: Option<&ServerInfo>, - extra_common_tags: &[Tag], - encryption_mode: EncryptionMode, - gift_wrap_mode: GiftWrapMode, - ) { - if encryption_mode != EncryptionMode::Disabled { - tags.push(Tag::custom( - TagKind::Custom(tags::SUPPORT_ENCRYPTION.into()), - Vec::::new(), - )); - if gift_wrap_mode.supports_ephemeral() { - tags.push(Tag::custom( - TagKind::Custom(tags::SUPPORT_ENCRYPTION_EPHEMERAL.into()), - Vec::::new(), - )); - } - } - if let Some(info) = server_info { - if let Some(ref name) = info.name { - tags.push(Tag::custom( - TagKind::Custom(tags::NAME.into()), - vec![name.clone()], - )); - } - } - tags.extend(extra_common_tags.iter().cloned()); - } } #[cfg(test)] @@ -1701,14 +1522,14 @@ mod tests { #[test] fn test_append_common_response_tags_includes_encryption_when_optional() { + let snapshot = announcement_manager::CommonTagsSnapshot { + server_info: None, + extra_common_tags: vec![], + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + }; let mut tags = Vec::new(); - NostrServerTransport::append_common_response_tags( - &mut tags, - None, - &[], - EncryptionMode::Optional, - GiftWrapMode::Optional, - ); + snapshot.append_common_response_tags(&mut tags); let kinds: Vec = tags.iter().map(|t| format!("{:?}", t.kind())).collect(); assert!( kinds.iter().any(|k| k.contains("support_encryption")), @@ -1718,14 +1539,14 @@ mod tests { #[test] fn test_append_common_response_tags_no_encryption_when_disabled() { + let snapshot = announcement_manager::CommonTagsSnapshot { + server_info: None, + extra_common_tags: vec![], + encryption_mode: EncryptionMode::Disabled, + gift_wrap_mode: GiftWrapMode::Optional, + }; let mut tags = Vec::new(); - NostrServerTransport::append_common_response_tags( - &mut tags, - None, - &[], - EncryptionMode::Disabled, - GiftWrapMode::Optional, - ); + snapshot.append_common_response_tags(&mut tags); assert!( tags.is_empty(), "should not include encryption tags when encryption disabled" @@ -1815,14 +1636,14 @@ mod tests { #[test] fn test_append_common_response_tags_includes_ephemeral_tag() { + let snapshot = announcement_manager::CommonTagsSnapshot { + server_info: None, + extra_common_tags: vec![], + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + }; let mut tags = Vec::new(); - NostrServerTransport::append_common_response_tags( - &mut tags, - None, - &[], - EncryptionMode::Optional, - GiftWrapMode::Optional, - ); + snapshot.append_common_response_tags(&mut tags); let kinds: Vec = tags.iter().map(|t| format!("{:?}", t.kind())).collect(); assert!( kinds @@ -1834,18 +1655,18 @@ mod tests { #[test] fn test_append_common_response_tags_includes_server_info() { - let mut tags = Vec::new(); let server_info = ServerInfo { name: Some("TestServer".to_string()), ..Default::default() }; - NostrServerTransport::append_common_response_tags( - &mut tags, - Some(&server_info), - &[], - EncryptionMode::Disabled, - GiftWrapMode::Optional, - ); + let snapshot = announcement_manager::CommonTagsSnapshot { + server_info: Some(server_info), + extra_common_tags: vec![], + encryption_mode: EncryptionMode::Disabled, + gift_wrap_mode: GiftWrapMode::Optional, + }; + let mut tags = Vec::new(); + snapshot.append_common_response_tags(&mut tags); let tag_value = tags .iter() .find(|t| (*t).clone().to_vec().first().map(|s| s.as_str()) == Some("name")) @@ -1855,18 +1676,18 @@ mod tests { #[test] fn test_append_common_response_tags_extra_tags() { - let mut tags = Vec::new(); let extra_tags = vec![Tag::custom( TagKind::Custom("custom_tag".into()), vec!["value".to_string()], )]; - NostrServerTransport::append_common_response_tags( - &mut tags, - None, - &extra_tags, - EncryptionMode::Disabled, - GiftWrapMode::Optional, - ); + let snapshot = announcement_manager::CommonTagsSnapshot { + server_info: None, + extra_common_tags: extra_tags, + encryption_mode: EncryptionMode::Disabled, + gift_wrap_mode: GiftWrapMode::Optional, + }; + let mut tags = Vec::new(); + snapshot.append_common_response_tags(&mut tags); let tag_value = tags .iter() .find(|t| (*t).clone().to_vec().first().map(|s| s.as_str()) == Some("custom_tag")) From e3ecb7d8fd2df52b9d762286394d35d4c7022bfc Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 14 May 2026 04:52:01 +0530 Subject: [PATCH 080/116] ci: add MSRV and feature matrix checks, fix rust-version to 1.88 --- .github/workflows/rust.yml | 49 +++++++++++++++++++++++++++++++++++++- Cargo.toml | 6 ++++- 2 files changed, 53 insertions(+), 2 deletions(-) diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml index 43b2061..01c4d5a 100644 --- a/.github/workflows/rust.yml +++ b/.github/workflows/rust.yml @@ -39,4 +39,51 @@ jobs: run: cargo doc --no-deps --all-features - name: Build - run: cargo build --verbose \ No newline at end of file + run: cargo build --verbose + + msrv: + name: MSRV (Rust 1.88) + runs-on: ubuntu-latest + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Install Rust 1.88 + uses: dtolnay/rust-toolchain@1.88 + + - name: Cache dependencies + uses: Swatinem/rust-cache@v2 + + - name: Remove incompatible lockfile + run: rm -f Cargo.lock + + - name: Check + run: cargo check --all-features + + - name: Test + run: cargo test --all-features + + features: + name: Feature matrix + runs-on: ubuntu-latest + + strategy: + matrix: + features: ["--no-default-features", "", "--all-features"] + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Install Rust + uses: dtolnay/rust-toolchain@stable + + - name: Cache dependencies + uses: Swatinem/rust-cache@v2 + + - name: Check + run: cargo check ${{ matrix.features }} + + - name: Test + run: cargo test ${{ matrix.features }} \ No newline at end of file diff --git a/Cargo.toml b/Cargo.toml index 351f02f..e0a28b4 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -2,7 +2,7 @@ name = "contextvm-sdk" version = "0.1.1" edition = "2021" -rust-version = "1.70" +rust-version = "1.88" description = "Rust SDK for the ContextVM protocol — MCP over Nostr" license = "MIT" readme = "README.md" @@ -58,6 +58,10 @@ required-features = ["rmcp"] name = "native_echo_client" required-features = ["rmcp"] +[[test]] +name = "e2e_happy_path" +required-features = ["rmcp", "test-utils"] + [[test]] name = "transport_integration" required-features = ["test-utils"] From 4ea6ce4f5fee3aff2dbf2d66366a6f8a6b95097a Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 14 May 2026 05:02:17 +0530 Subject: [PATCH 081/116] ci: consolidate feature matrix into main ci job --- .github/workflows/rust.yml | 38 +++++++++++++------------------------- 1 file changed, 13 insertions(+), 25 deletions(-) diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml index 01c4d5a..ab73c36 100644 --- a/.github/workflows/rust.yml +++ b/.github/workflows/rust.yml @@ -41,6 +41,18 @@ jobs: - name: Build run: cargo build --verbose + - name: Check (no-default-features) + run: cargo check --no-default-features + + - name: Test (no-default-features) + run: cargo test --no-default-features + + - name: Check (default features) + run: cargo check + + - name: Test (default features) + run: cargo test + msrv: name: MSRV (Rust 1.88) runs-on: ubuntu-latest @@ -62,28 +74,4 @@ jobs: run: cargo check --all-features - name: Test - run: cargo test --all-features - - features: - name: Feature matrix - runs-on: ubuntu-latest - - strategy: - matrix: - features: ["--no-default-features", "", "--all-features"] - - steps: - - name: Checkout - uses: actions/checkout@v4 - - - name: Install Rust - uses: dtolnay/rust-toolchain@stable - - - name: Cache dependencies - uses: Swatinem/rust-cache@v2 - - - name: Check - run: cargo check ${{ matrix.features }} - - - name: Test - run: cargo test ${{ matrix.features }} \ No newline at end of file + run: cargo test --all-features \ No newline at end of file From e43889fb593cc591ff9082683941bdc68ba8360e Mon Sep 17 00:00:00 2001 From: Harsh Date: Fri, 15 May 2026 04:45:24 +0530 Subject: [PATCH 082/116] feat: add ProfileMetadata type and update ServerAnnouncement to parse full InitializeResult (CEP-6) --- src/core/types.rs | 136 ++++++++++++++++++++++++++++++++++++ src/discovery/mod.rs | 161 ++++++++++++++++++++++++++++++++++++++++++- src/lib.rs | 2 +- 3 files changed, 296 insertions(+), 3 deletions(-) diff --git a/src/core/types.rs b/src/core/types.rs index 12cd69b..5f329c2 100644 --- a/src/core/types.rs +++ b/src/core/types.rs @@ -110,6 +110,79 @@ impl ServerInfo { } } +// ── Profile metadata ──────────────────────────────────────────────── + +/// Nostr profile metadata for server identity (NIP-01 kind 0 / CEP-23). +/// +/// Opt-in profile that servers can publish so clients see a human-friendly +/// identity on the Nostr network. Serialized as the content of a kind 0 event. +#[derive(Debug, Clone, Default, Serialize, Deserialize)] +#[non_exhaustive] +pub struct ProfileMetadata { + /// Display name. + #[serde(skip_serializing_if = "Option::is_none")] + pub name: Option, + /// Short description or bio. + #[serde(skip_serializing_if = "Option::is_none")] + pub about: Option, + /// Avatar / profile picture URL. + #[serde(skip_serializing_if = "Option::is_none")] + pub picture: Option, + /// Banner image URL. + #[serde(skip_serializing_if = "Option::is_none")] + pub banner: Option, + /// Website URL. + #[serde(skip_serializing_if = "Option::is_none")] + pub website: Option, + /// NIP-05 verification identifier (e.g. `user@example.com`). + #[serde(skip_serializing_if = "Option::is_none")] + pub nip05: Option, + /// Lightning address for payments (LUD-16). + #[serde(skip_serializing_if = "Option::is_none")] + pub lud16: Option, + /// Arbitrary additional fields preserved across round-trips. + #[serde(flatten)] + pub extra: HashMap, +} + +impl ProfileMetadata { + /// Set the display name. + pub fn with_name(mut self, name: impl Into) -> Self { + self.name = Some(name.into()); + self + } + /// Set the description / bio. + pub fn with_about(mut self, about: impl Into) -> Self { + self.about = Some(about.into()); + self + } + /// Set the avatar URL. + pub fn with_picture(mut self, picture: impl Into) -> Self { + self.picture = Some(picture.into()); + self + } + /// Set the banner image URL. + pub fn with_banner(mut self, banner: impl Into) -> Self { + self.banner = Some(banner.into()); + self + } + /// Set the website URL. + pub fn with_website(mut self, website: impl Into) -> Self { + self.website = Some(website.into()); + self + } + /// Set the NIP-05 verification identifier. + pub fn with_nip05(mut self, nip05: impl Into) -> Self { + self.nip05 = Some(nip05.into()); + self + } + /// Set the Lightning address (LUD-16). + pub fn with_lud16(mut self, lud16: impl Into) -> Self { + self.lud16 = Some(lud16.into()); + self + } +} + // ── Client session ────────────────────────────────────────────────── /// Client session state tracked by the server transport. @@ -619,4 +692,67 @@ mod tests { session.update_activity(); assert!(session.last_activity > first); } + + #[test] + fn test_profile_metadata_serde_roundtrip() { + let meta = ProfileMetadata { + name: Some("My Server".to_string()), + about: Some("Does things".to_string()), + picture: Some("https://example.com/pic.png".to_string()), + banner: Some("https://example.com/banner.png".to_string()), + website: Some("https://example.com".to_string()), + nip05: Some("server@example.com".to_string()), + lud16: Some("server@getalby.com".to_string()), + extra: HashMap::new(), + }; + let json_str = serde_json::to_string(&meta).unwrap(); + let parsed: ProfileMetadata = serde_json::from_str(&json_str).unwrap(); + assert_eq!(parsed.name, meta.name); + assert_eq!(parsed.about, meta.about); + assert_eq!(parsed.picture, meta.picture); + assert_eq!(parsed.banner, meta.banner); + assert_eq!(parsed.website, meta.website); + assert_eq!(parsed.nip05, meta.nip05); + assert_eq!(parsed.lud16, meta.lud16); + } + + #[test] + fn test_profile_metadata_default_serializes_empty() { + let meta = ProfileMetadata::default(); + let json_str = serde_json::to_string(&meta).unwrap(); + assert_eq!(json_str, "{}"); + } + + #[test] + fn test_profile_metadata_preserves_custom_fields() { + let json_str = r#"{"name":"Srv","custom_flag":true,"rank":42}"#; + let parsed: ProfileMetadata = serde_json::from_str(json_str).unwrap(); + assert_eq!(parsed.name, Some("Srv".to_string())); + assert_eq!(parsed.extra.get("custom_flag"), Some(&json!(true))); + assert_eq!(parsed.extra.get("rank"), Some(&json!(42))); + + let reserialized = serde_json::to_string(&parsed).unwrap(); + let reparsed: serde_json::Value = serde_json::from_str(&reserialized).unwrap(); + assert_eq!(reparsed["custom_flag"], json!(true)); + assert_eq!(reparsed["rank"], json!(42)); + } + + #[test] + fn test_profile_metadata_builder() { + let meta = ProfileMetadata::default() + .with_name("Test") + .with_about("Bio") + .with_picture("https://pic.url") + .with_banner("https://banner.url") + .with_website("https://web.url") + .with_nip05("user@example.com") + .with_lud16("user@getalby.com"); + assert_eq!(meta.name.as_deref(), Some("Test")); + assert_eq!(meta.about.as_deref(), Some("Bio")); + assert_eq!(meta.picture.as_deref(), Some("https://pic.url")); + assert_eq!(meta.banner.as_deref(), Some("https://banner.url")); + assert_eq!(meta.website.as_deref(), Some("https://web.url")); + assert_eq!(meta.nip05.as_deref(), Some("user@example.com")); + assert_eq!(meta.lud16.as_deref(), Some("user@getalby.com")); + } } diff --git a/src/discovery/mod.rs b/src/discovery/mod.rs index d5ffa3a..87e76aa 100644 --- a/src/discovery/mod.rs +++ b/src/discovery/mod.rs @@ -42,12 +42,18 @@ pub struct ServerAnnouncement { pub pubkey: String, /// Parsed public key. pub pubkey_parsed: PublicKey, - /// Server information from the announcement content. + /// Server information extracted from the announcement content. pub server_info: ServerInfo, /// The Nostr event ID of the announcement. pub event_id: EventId, /// When the announcement was created. pub created_at: Timestamp, + /// MCP protocol version (present when content is a full `InitializeResult`). + pub protocol_version: Option, + /// Server capabilities (present when content is a full `InitializeResult`). + pub capabilities: Option, + /// Human-readable instructions (present when content is a full `InitializeResult`). + pub instructions: Option, } /// Discover MCP servers by fetching kind 11316 announcement events from relays. @@ -64,13 +70,17 @@ pub async fn discover_servers( let mut announcements = Vec::new(); for event in events { - let server_info: ServerInfo = serde_json::from_str(&event.content).unwrap_or_default(); + let (server_info, protocol_version, capabilities, instructions) = + parse_announcement_content(&event.content); announcements.push(ServerAnnouncement { pubkey: event.pubkey.to_hex(), pubkey_parsed: event.pubkey, server_info, event_id: event.id, created_at: event.created_at, + protocol_version, + capabilities, + instructions, }); } @@ -165,6 +175,72 @@ pub async fn discover_resource_templates_typed( // ── Internal ──────────────────────────────────────────────────────── +/// Parse kind 11316 event content, supporting two formats: +/// +/// - **New (InitializeResult):** `{ "protocolVersion": "…", "capabilities": {…}, +/// "serverInfo": {…}, "instructions": "…" }` — used when the server publishes +/// the full MCP InitializeResult as content. +/// - **Legacy (ServerInfo):** `{ "name": "…", "version": "…", … }` — the original +/// rs-sdk format where content is just `ServerInfo`. +fn parse_announcement_content( + content: &str, +) -> ( + ServerInfo, + Option, + Option, + Option, +) { + let Ok(value) = serde_json::from_str::(content) else { + return (ServerInfo::default(), None, None, None); + }; + + // Detect new format by the presence of "protocolVersion" (camelCase from rmcp). + if value.get("protocolVersion").is_some() { + let server_info = value + .get("serverInfo") + .map(server_info_from_implementation) + .unwrap_or_default(); + let protocol_version = value + .get("protocolVersion") + .and_then(|v| v.as_str()) + .map(String::from); + let capabilities = value.get("capabilities").cloned(); + let instructions = value + .get("instructions") + .and_then(|v| v.as_str()) + .map(String::from); + (server_info, protocol_version, capabilities, instructions) + } else { + // Legacy: content is a flat ServerInfo object. + let server_info = serde_json::from_value::(value).unwrap_or_default(); + (server_info, None, None, None) + } +} + +/// Map an rmcp `Implementation` JSON object to our `ServerInfo`. +/// +/// Field mapping: `name`→`name`, `version`→`version`, +/// `websiteUrl`→`website`, `description`→`about`. The `picture` field has no +/// equivalent in `Implementation` so it is left `None`. +fn server_info_from_implementation(val: &serde_json::Value) -> ServerInfo { + ServerInfo { + name: val.get("name").and_then(|v| v.as_str()).map(String::from), + version: val + .get("version") + .and_then(|v| v.as_str()) + .map(String::from), + website: val + .get("websiteUrl") + .and_then(|v| v.as_str()) + .map(String::from), + about: val + .get("description") + .and_then(|v| v.as_str()) + .map(String::from), + picture: None, + } +} + async fn fetch_list( client: &Arc, server_pubkey: &PublicKey, @@ -285,9 +361,90 @@ mod tests { ) .unwrap(), created_at: Timestamp::now(), + protocol_version: None, + capabilities: None, + instructions: None, }; assert_eq!(announcement.pubkey, pubkey.to_hex()); assert_eq!(announcement.server_info.name, Some("Test".to_string())); } + + #[test] + fn test_parse_announcement_content_legacy_format() { + let content = r#"{"name":"Legacy Server","version":"0.1.0","about":"Old format"}"#; + let (info, pv, caps, instr) = super::parse_announcement_content(content); + assert_eq!(info.name.as_deref(), Some("Legacy Server")); + assert_eq!(info.version.as_deref(), Some("0.1.0")); + assert_eq!(info.about.as_deref(), Some("Old format")); + assert!(pv.is_none()); + assert!(caps.is_none()); + assert!(instr.is_none()); + } + + #[test] + fn test_parse_announcement_content_initialize_result_format() { + let content = r#"{ + "protocolVersion": "2025-03-26", + "capabilities": { + "tools": { "listChanged": true }, + "resources": { "subscribe": false, "listChanged": false } + }, + "serverInfo": { + "name": "NewServer", + "version": "2.0.0", + "description": "Full InitializeResult", + "websiteUrl": "https://example.com" + }, + "instructions": "Use tool X for Y" + }"#; + let (info, pv, caps, instr) = super::parse_announcement_content(content); + + assert_eq!(info.name.as_deref(), Some("NewServer")); + assert_eq!(info.version.as_deref(), Some("2.0.0")); + assert_eq!(info.about.as_deref(), Some("Full InitializeResult")); + assert_eq!(info.website.as_deref(), Some("https://example.com")); + assert!(info.picture.is_none()); + + assert_eq!(pv.as_deref(), Some("2025-03-26")); + assert!(caps.is_some()); + let caps = caps.unwrap(); + assert!(caps.get("tools").is_some()); + assert_eq!(instr.as_deref(), Some("Use tool X for Y")); + } + + #[test] + fn test_parse_announcement_content_invalid_json() { + let (info, pv, caps, instr) = super::parse_announcement_content("not json"); + assert!(info.name.is_none()); + assert!(pv.is_none()); + assert!(caps.is_none()); + assert!(instr.is_none()); + } + + #[test] + fn test_parse_announcement_content_empty_object() { + let (info, pv, caps, instr) = super::parse_announcement_content("{}"); + assert!(info.name.is_none()); + assert!(pv.is_none()); + assert!(caps.is_none()); + assert!(instr.is_none()); + } + + #[test] + fn test_server_info_from_implementation() { + let val = serde_json::json!({ + "name": "TestImpl", + "version": "3.0", + "title": "Fancy Title", + "description": "Impl description", + "websiteUrl": "https://impl.example.com" + }); + let info = super::server_info_from_implementation(&val); + assert_eq!(info.name.as_deref(), Some("TestImpl")); + assert_eq!(info.version.as_deref(), Some("3.0")); + assert_eq!(info.website.as_deref(), Some("https://impl.example.com")); + assert_eq!(info.about.as_deref(), Some("Impl description")); + assert!(info.picture.is_none()); + } } diff --git a/src/lib.rs b/src/lib.rs index 493a901..d8aab47 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -62,7 +62,7 @@ pub use core::error::{Error, Result}; pub use core::types::{ CapabilityExclusion, ClientSession, EncryptionMode, GiftWrapMode, JsonRpcError, JsonRpcErrorResponse, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, - ServerInfo, + ProfileMetadata, ServerInfo, }; // ── Discovery ──────────────────────────────────────────────────────── From fda3e8776d6a687e5082c4e188de8d9f42efc289 Mon Sep 17 00:00:00 2001 From: Harsh Date: Tue, 19 May 2026 17:59:10 +0530 Subject: [PATCH 083/116] feat: auto-publish server announcements on start (CEP-6 PR 2) --- src/core/constants.rs | 14 + src/rmcp_transport/worker.rs | 52 ++ src/transport/server/announcement_manager.rs | 504 ++++++++++++++++++- src/transport/server/mod.rs | 31 ++ 4 files changed, 599 insertions(+), 2 deletions(-) diff --git a/src/core/constants.rs b/src/core/constants.rs index 6e2a117..095d784 100644 --- a/src/core/constants.rs +++ b/src/core/constants.rs @@ -97,6 +97,13 @@ pub const INITIALIZE_METHOD: &str = "initialize"; /// MCP protocol method for the initialized notification pub const NOTIFICATIONS_INITIALIZED_METHOD: &str = "notifications/initialized"; +/// Sentinel request ID for the announcement auto-publish flow. +/// +/// Synthetic initialize and capability-list requests use this ID so the +/// worker routes responses to the announcement handler rather than the +/// normal client response path. +pub const ANNOUNCEMENT_REQUEST_ID: &str = "announcement"; + /// Kinds that should never be encrypted (public announcements) pub const UNENCRYPTED_KINDS: &[u16] = &[ SERVER_ANNOUNCEMENT_KIND, @@ -211,6 +218,13 @@ mod tests { ); } + #[test] + fn test_announcement_request_id() { + assert_eq!(ANNOUNCEMENT_REQUEST_ID, "announcement"); + // Must differ from the stateless synthetic sentinel used by the worker + assert_ne!(ANNOUNCEMENT_REQUEST_ID, "contextvm-stateless-init"); + } + #[test] fn test_unencrypted_kinds_contains_all_announcements() { assert!(UNENCRYPTED_KINDS.contains(&SERVER_ANNOUNCEMENT_KIND)); diff --git a/src/rmcp_transport/worker.rs b/src/rmcp_transport/worker.rs index 023354f..da83b79 100644 --- a/src/rmcp_transport/worker.rs +++ b/src/rmcp_transport/worker.rs @@ -3,6 +3,7 @@ //! This file defines wrapper types that bind existing ContextVM Nostr //! transports to rmcp's worker abstraction. +use crate::core::constants::ANNOUNCEMENT_REQUEST_ID; use crate::core::error::Result; use crate::core::types::{JsonRpcMessage, JsonRpcNotification, JsonRpcRequest}; use crate::transport::client::{NostrClientTransport, NostrClientTransportConfig}; @@ -118,6 +119,10 @@ impl Worker for NostrServerWorker { .await .map_err(WorkerQuitReason::fatal_context("starting server transport"))?; + // CEP-6: Spawn auto-publish after start() so the worker's select loop + // is running when synthetic messages arrive through message_tx. + self.transport.spawn_announcements(); + let mut rx = self.transport.take_message_receiver().ok_or_else(|| { WorkerQuitReason::fatal( Self::Error::Other("server message receiver already taken".to_string()), @@ -366,6 +371,17 @@ impl NostrServerWorker { ) })?; + if event_id == ANNOUNCEMENT_REQUEST_ID { + tracing::debug!( + target: LOG_TARGET, + "Routing announcement response to handler" + ); + return self + .transport + .handle_announcement_response(JsonRpcMessage::Response(resp)) + .await; + } + if event_id == STATELESS_SYNTHETIC_EVENT_ID { tracing::debug!( target: LOG_TARGET, @@ -386,6 +402,17 @@ impl NostrServerWorker { ) })?; + if event_id == ANNOUNCEMENT_REQUEST_ID { + tracing::debug!( + target: LOG_TARGET, + "Routing announcement error to handler" + ); + return self + .transport + .handle_announcement_response(JsonRpcMessage::ErrorResponse(resp)) + .await; + } + if event_id == STATELESS_SYNTHETIC_EVENT_ID { tracing::debug!( target: LOG_TARGET, @@ -517,4 +544,29 @@ mod tests { &synthetic_initialize_message() )); } + + #[test] + fn test_announcement_sentinel_differs_from_stateless_sentinel() { + assert_ne!(ANNOUNCEMENT_REQUEST_ID, STATELESS_SYNTHETIC_EVENT_ID); + } + + #[test] + fn test_announcement_response_id_detected() { + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(ANNOUNCEMENT_REQUEST_ID), + result: serde_json::json!({ + "protocolVersion": "2025-11-25", + "capabilities": {}, + "serverInfo": { "name": "test" } + }), + }); + + if let JsonRpcMessage::Response(ref resp) = response { + let event_id = resp.id.as_str().unwrap(); + assert_eq!(event_id, ANNOUNCEMENT_REQUEST_ID); + // Must not be confused with the stateless synthetic sentinel + assert!(!is_synthetic_initialize_message(&response)); + } + } } diff --git a/src/transport/server/announcement_manager.rs b/src/transport/server/announcement_manager.rs index 1abf888..bc81d62 100644 --- a/src/transport/server/announcement_manager.rs +++ b/src/transport/server/announcement_manager.rs @@ -4,14 +4,24 @@ //! announcements (kinds 11316–11320) and CEP-35 first-response discovery. use std::sync::{Arc, Mutex}; +use std::time::Duration; use nostr_sdk::prelude::*; +use tokio::sync::Notify; +use super::IncomingRequest; use crate::core::constants::*; use crate::core::error::{Error, Result}; use crate::core::types::*; use crate::relay::RelayPoolTrait; +const LOG_TARGET: &str = "contextvm_sdk::transport::server::announcement"; + +/// Default timeout waiting for the rmcp handler to respond to the synthetic +/// initialize request during announcement auto-publish. +#[cfg_attr(not(feature = "rmcp"), allow(dead_code))] +const ANNOUNCEMENT_INIT_TIMEOUT: Duration = Duration::from_secs(10); + /// Manages tag composition and publishing for server announcements. /// /// Handles CEP-6 announcement event publishing (kinds 11316–11320) and @@ -34,15 +44,31 @@ pub(crate) struct AnnouncementManager { pricing_tags: Vec, /// Cached result of `get_common_tags()`. Invalidated by tag setters. cached_common_tags: Mutex>>, + /// Channel for injecting synthetic MCP messages into the transport's inbound queue. + /// Wrapped in `Option` so it can be dropped during `close()` — otherwise this + /// clone keeps the message channel alive after `message_tx` is taken. + dispatch_fn: Option>, + /// Notifier signaled when the announcement init response has been processed. + init_notify: Arc, + /// Whether the announcement initialization has completed. + /// Only read by `handle_announcement_response`, which is called from the + /// rmcp worker — unused when the `rmcp` feature is disabled. + #[cfg_attr(not(feature = "rmcp"), allow(dead_code))] + initialized: Mutex, } impl AnnouncementManager { /// Create a new announcement manager. + /// + /// `dispatch_fn` is a clone of the transport's `message_tx` channel, used to + /// inject synthetic MCP messages (initialize, notifications/initialized, + /// capability list requests) during the auto-publish flow. pub fn new( relay_pool: Arc, server_info: Option, encryption_mode: EncryptionMode, gift_wrap_mode: GiftWrapMode, + dispatch_fn: tokio::sync::mpsc::UnboundedSender, ) -> Self { Self { relay_pool, @@ -53,6 +79,9 @@ impl AnnouncementManager { internal_common_tags: Vec::new(), pricing_tags: Vec::new(), cached_common_tags: Mutex::new(None), + dispatch_fn: Some(dispatch_fn), + init_notify: Arc::new(Notify::new()), + initialized: Mutex::new(false), } } @@ -318,6 +347,234 @@ impl AnnouncementManager { gift_wrap_mode: self.gift_wrap_mode, } } + + /// Drop the dispatch channel clone so `close()` can fully shut down the + /// message channel. + pub(crate) fn shutdown(&mut self) { + self.dispatch_fn.take(); + } + + // ── Auto-publish orchestration ──────────────────────────────── + + /// Handle a response to a synthetic announcement request. + /// + /// Schema-matches the result to determine which event kind to publish: + /// `InitializeResult` → 11316, `ListToolsResult` → 11317, + /// `ListResourcesResult` → 11318, `ListResourceTemplatesResult` → 11319, + /// `ListPromptsResult` → 11320. + /// + /// On `InitializeResult`, dispatches `notifications/initialized` via + /// `dispatch_fn` **before** signaling `init_notify` — this ordering is + /// critical so the notification enters the worker queue before any + /// capability-list requests. + #[cfg_attr(not(feature = "rmcp"), allow(dead_code))] + pub(crate) async fn handle_announcement_response( + &self, + response: JsonRpcMessage, + ) -> Result<()> { + let result = match &response { + JsonRpcMessage::Response(resp) => &resp.result, + JsonRpcMessage::ErrorResponse(resp) => { + tracing::warn!( + target: LOG_TARGET, + error_code = resp.error.code, + error_message = %resp.error.message, + "Announcement request returned error, skipping publish" + ); + // If init hasn't completed yet, signal so publish_public_announcements + // doesn't hang waiting for the Notify. + let mut flag = self.initialized.lock().unwrap_or_else(|e| e.into_inner()); + if !*flag { + *flag = true; + drop(flag); + self.init_notify.notify_one(); + } + return Ok(()); + } + _ => return Ok(()), + }; + + // Determine event kind from response schema. + let kind = + if result.get("protocolVersion").is_some() || result.get("capabilities").is_some() { + Some(SERVER_ANNOUNCEMENT_KIND) + } else if result.get("tools").is_some() { + Some(TOOLS_LIST_KIND) + } else if result.get("resources").is_some() { + Some(RESOURCES_LIST_KIND) + } else if result.get("resourceTemplates").is_some() { + Some(RESOURCETEMPLATES_LIST_KIND) + } else if result.get("prompts").is_some() { + Some(PROMPTS_LIST_KIND) + } else { + tracing::warn!( + target: LOG_TARGET, + "Announcement response has unrecognized schema, skipping publish" + ); + None + }; + + if let Some(kind) = kind { + let content = serde_json::to_string(result)?; + let tags = self.get_announcement_tags(kind); + let builder = EventBuilder::new(Kind::Custom(kind), content).tags(tags); + match self.relay_pool.publish(builder).await { + Ok(id) => tracing::info!( + target: LOG_TARGET, + event_id = %id, + kind, + "Published announcement event" + ), + Err(e) => tracing::warn!( + target: LOG_TARGET, + error = %e, + kind, + "Failed to publish announcement event" + ), + } + + // For InitializeResult: dispatch notifications/initialized and signal Notify. + if kind == SERVER_ANNOUNCEMENT_KIND { + // Critical ordering: dispatch notifications/initialized FIRST so it + // enters the worker queue before capability-list requests. + if let Some(ref tx) = self.dispatch_fn { + let _ = tx.send(IncomingRequest { + message: JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: NOTIFICATIONS_INITIALIZED_METHOD.to_string(), + params: None, + }), + client_pubkey: ANNOUNCEMENT_REQUEST_ID.to_string(), + event_id: ANNOUNCEMENT_REQUEST_ID.to_string(), + is_encrypted: false, + }); + } + + // THEN signal the Notify — publish_public_announcements will dispatch + // capability-list requests after this, ensuring they arrive after the + // initialized notification in the worker queue. + let mut flag = self.initialized.lock().unwrap_or_else(|e| e.into_inner()); + *flag = true; + drop(flag); + self.init_notify.notify_one(); + } + } + + Ok(()) + } + + /// Spawn the auto-publish orchestration task. + /// + /// Returns a `JoinHandle` that the caller should track for cleanup. + /// The task dispatches a synthetic `initialize` request, waits for the + /// response, then dispatches capability-list requests. + #[cfg_attr(not(feature = "rmcp"), allow(dead_code))] + pub(crate) fn spawn_publish_public_announcements( + &self, + cancel: tokio_util::sync::CancellationToken, + ) -> tokio::task::JoinHandle<()> { + let dispatch_fn = self + .dispatch_fn + .clone() + .expect("dispatch_fn must be set before spawning announcements"); + let init_notify = Arc::clone(&self.init_notify); + tokio::spawn(publish_public_announcements( + dispatch_fn, + init_notify, + cancel, + )) + } +} + +/// Auto-publish orchestration: dispatches synthetic requests and waits for init. +/// +/// Standalone async function (not a method) so it can be moved into a spawned task +/// without borrowing the `AnnouncementManager`. +#[cfg_attr(not(feature = "rmcp"), allow(dead_code))] +async fn publish_public_announcements( + dispatch_fn: tokio::sync::mpsc::UnboundedSender, + init_notify: Arc, + cancel: tokio_util::sync::CancellationToken, +) { + tracing::info!(target: LOG_TARGET, "Starting auto-publish of server announcements"); + + // Dispatch synthetic initialize request. + let init_request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(ANNOUNCEMENT_REQUEST_ID), + method: INITIALIZE_METHOD.to_string(), + params: Some(serde_json::json!({ + "protocolVersion": crate::core::constants::mcp_protocol_version(), + "capabilities": {}, + "clientInfo": { + "name": "contextvm-announcement-client", + "version": "0.1.0" + } + })), + }); + if dispatch_fn + .send(IncomingRequest { + message: init_request, + client_pubkey: ANNOUNCEMENT_REQUEST_ID.to_string(), + event_id: ANNOUNCEMENT_REQUEST_ID.to_string(), + is_encrypted: false, + }) + .is_err() + { + tracing::warn!( + target: LOG_TARGET, + "Transport channel closed before init request could be sent" + ); + return; + } + + // Wait for handle_announcement_response to signal completion of the init + // response, with cancellation support so close() isn't blocked. + tokio::select! { + _ = cancel.cancelled() => { + tracing::info!(target: LOG_TARGET, "Announcement publish cancelled during init wait"); + return; + } + result = tokio::time::timeout(ANNOUNCEMENT_INIT_TIMEOUT, init_notify.notified()) => { + match result { + Ok(()) => tracing::info!( + target: LOG_TARGET, + "Announcement init complete, dispatching capability list requests" + ), + Err(_) => tracing::warn!( + target: LOG_TARGET, + timeout_secs = ANNOUNCEMENT_INIT_TIMEOUT.as_secs(), + "Announcement init timed out, proceeding with capability list requests" + ), + } + } + } + + // Dispatch all four capability-list requests at once (no per-request await). + for method in &[ + "tools/list", + "resources/list", + "resources/templates/list", + "prompts/list", + ] { + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(ANNOUNCEMENT_REQUEST_ID), + method: method.to_string(), + params: None, + }); + let _ = dispatch_fn.send(IncomingRequest { + message: request, + client_pubkey: ANNOUNCEMENT_REQUEST_ID.to_string(), + event_id: ANNOUNCEMENT_REQUEST_ID.to_string(), + is_encrypted: false, + }); + } + + tracing::info!( + target: LOG_TARGET, + "Dispatched all announcement capability list requests" + ); } /// Cloneable snapshot of tag-building state for the event loop. @@ -375,10 +632,11 @@ mod tests { gift_wrap_mode: GiftWrapMode, server_info: Option, ) -> AnnouncementManager { - // Tests only exercise tag building; relay pool is unused. + // Tests only exercise tag building; relay pool and dispatch channel are unused. use crate::relay::mock::MockRelayPool; let pool: Arc = Arc::new(MockRelayPool::new()); - AnnouncementManager::new(pool, server_info, encryption_mode, gift_wrap_mode) + let (tx, _rx) = tokio::sync::mpsc::unbounded_channel(); + AnnouncementManager::new(pool, server_info, encryption_mode, gift_wrap_mode, tx) } // ── 1. Server info tags ──────────────────────────────────────── @@ -562,4 +820,246 @@ mod tests { "Kind 11317 should include pricing tags" ); } + + // ── 11. Auto-publish: handle_announcement_response ─────────── + + fn make_manager_with_pool( + server_info: Option, + ) -> ( + AnnouncementManager, + Arc, + tokio::sync::mpsc::UnboundedReceiver, + ) { + use crate::relay::mock::MockRelayPool; + let pool = Arc::new(MockRelayPool::new()); + let (tx, rx) = tokio::sync::mpsc::unbounded_channel(); + let mgr = AnnouncementManager::new( + Arc::clone(&pool) as Arc, + server_info, + EncryptionMode::Disabled, + GiftWrapMode::Optional, + tx, + ); + (mgr, pool, rx) + } + + #[tokio::test] + async fn handle_announcement_response_publishes_init_result() { + let (mgr, pool, mut rx) = make_manager_with_pool(None); + + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(ANNOUNCEMENT_REQUEST_ID), + result: serde_json::json!({ + "protocolVersion": "2025-11-25", + "capabilities": {}, + "serverInfo": { "name": "test-server", "version": "0.1.0" } + }), + }); + + mgr.handle_announcement_response(response).await.unwrap(); + + // Verify kind 11316 event published + let events = pool.stored_events().await; + assert_eq!(events.len(), 1); + assert_eq!(events[0].kind, Kind::Custom(SERVER_ANNOUNCEMENT_KIND)); + + // Verify notifications/initialized dispatched + let notif = rx + .try_recv() + .expect("should dispatch notifications/initialized"); + assert_eq!( + notif.message.method(), + Some(NOTIFICATIONS_INITIALIZED_METHOD) + ); + assert_eq!(notif.client_pubkey, ANNOUNCEMENT_REQUEST_ID); + + // Verify initialized flag set + assert!(*mgr.initialized.lock().unwrap()); + } + + #[tokio::test] + async fn handle_announcement_response_publishes_tools_list() { + let (mgr, pool, _rx) = make_manager_with_pool(None); + + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(ANNOUNCEMENT_REQUEST_ID), + result: serde_json::json!({ + "tools": [{ "name": "echo", "description": "Echo tool" }] + }), + }); + + mgr.handle_announcement_response(response).await.unwrap(); + + let events = pool.stored_events().await; + assert_eq!(events.len(), 1); + assert_eq!(events[0].kind, Kind::Custom(TOOLS_LIST_KIND)); + } + + #[tokio::test] + async fn handle_announcement_response_publishes_resources_list() { + let (mgr, pool, _rx) = make_manager_with_pool(None); + + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(ANNOUNCEMENT_REQUEST_ID), + result: serde_json::json!({ "resources": [] }), + }); + + mgr.handle_announcement_response(response).await.unwrap(); + + let events = pool.stored_events().await; + assert_eq!(events.len(), 1); + assert_eq!(events[0].kind, Kind::Custom(RESOURCES_LIST_KIND)); + } + + #[tokio::test] + async fn handle_announcement_response_publishes_resource_templates_list() { + let (mgr, pool, _rx) = make_manager_with_pool(None); + + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(ANNOUNCEMENT_REQUEST_ID), + result: serde_json::json!({ "resourceTemplates": [] }), + }); + + mgr.handle_announcement_response(response).await.unwrap(); + + let events = pool.stored_events().await; + assert_eq!(events.len(), 1); + assert_eq!(events[0].kind, Kind::Custom(RESOURCETEMPLATES_LIST_KIND)); + } + + #[tokio::test] + async fn handle_announcement_response_publishes_prompts_list() { + let (mgr, pool, _rx) = make_manager_with_pool(None); + + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(ANNOUNCEMENT_REQUEST_ID), + result: serde_json::json!({ "prompts": [] }), + }); + + mgr.handle_announcement_response(response).await.unwrap(); + + let events = pool.stored_events().await; + assert_eq!(events.len(), 1); + assert_eq!(events[0].kind, Kind::Custom(PROMPTS_LIST_KIND)); + } + + #[tokio::test] + async fn handle_announcement_response_error_signals_notify_without_publishing() { + let (mgr, pool, _rx) = make_manager_with_pool(None); + + let response = JsonRpcMessage::ErrorResponse(JsonRpcErrorResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(ANNOUNCEMENT_REQUEST_ID), + error: JsonRpcError { + code: -32600, + message: "test error".to_string(), + data: None, + }, + }); + + mgr.handle_announcement_response(response).await.unwrap(); + + // No events published + assert!(pool.stored_events().await.is_empty()); + // But initialized flag is set (to unblock publish_public_announcements) + assert!(*mgr.initialized.lock().unwrap()); + } + + #[tokio::test] + async fn handle_announcement_response_unknown_schema_no_publish() { + let (mgr, pool, _rx) = make_manager_with_pool(None); + + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(ANNOUNCEMENT_REQUEST_ID), + result: serde_json::json!({ "unknown": "data" }), + }); + + mgr.handle_announcement_response(response).await.unwrap(); + assert!(pool.stored_events().await.is_empty()); + } + + // ── 12. Auto-publish: publish_public_announcements ─────────── + + #[tokio::test] + async fn publish_public_announcements_dispatches_init_then_capability_lists() { + let (tx, mut rx) = tokio::sync::mpsc::unbounded_channel::(); + let init_notify = Arc::new(Notify::new()); + let cancel = tokio_util::sync::CancellationToken::new(); + + let init_notify_clone = Arc::clone(&init_notify); + let handle = tokio::spawn(publish_public_announcements(tx, init_notify_clone, cancel)); + + // First message should be the synthetic initialize request. + let init_msg = tokio::time::timeout(Duration::from_secs(1), rx.recv()) + .await + .expect("should receive init request within 1s") + .expect("channel should not be closed"); + assert_eq!(init_msg.message.method(), Some(INITIALIZE_METHOD)); + assert_eq!(init_msg.client_pubkey, ANNOUNCEMENT_REQUEST_ID); + assert_eq!(init_msg.event_id, ANNOUNCEMENT_REQUEST_ID); + assert!(!init_msg.is_encrypted); + + // Signal init complete — the task should then dispatch capability lists. + init_notify.notify_one(); + + // Should receive 4 capability list requests in order. + let expected_methods = [ + "tools/list", + "resources/list", + "resources/templates/list", + "prompts/list", + ]; + for expected_method in &expected_methods { + let msg = tokio::time::timeout(Duration::from_secs(1), rx.recv()) + .await + .expect("should receive capability request within 1s") + .expect("channel should not be closed"); + assert_eq!(msg.message.method(), Some(*expected_method)); + assert_eq!(msg.client_pubkey, ANNOUNCEMENT_REQUEST_ID); + } + + handle.await.unwrap(); + } + + #[tokio::test] + async fn handle_init_result_dispatches_notification_before_notify_signal() { + let (mgr, _pool, mut rx) = make_manager_with_pool(None); + + // Clone the Notify so we can also wait on it from the test. + let init_notify = Arc::clone(&mgr.init_notify); + let notified = init_notify.notified(); + + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(ANNOUNCEMENT_REQUEST_ID), + result: serde_json::json!({ + "protocolVersion": "2025-11-25", + "capabilities": {}, + "serverInfo": { "name": "test" } + }), + }); + + mgr.handle_announcement_response(response).await.unwrap(); + + // The Notify should have been signaled. + tokio::time::timeout(Duration::from_millis(100), notified) + .await + .expect("init_notify should have been signaled"); + + // And the notifications/initialized message should already be in the + // channel (dispatched BEFORE the Notify signal). + let notif = rx + .try_recv() + .expect("notification should be queued before Notify"); + assert_eq!( + notif.message.method(), + Some(NOTIFICATIONS_INITIALIZED_METHOD) + ); + } } diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 6eef49d..1eeb368 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -215,6 +215,7 @@ impl NostrServerTransport { config.server_info.clone(), config.encryption_mode, config.gift_wrap_mode, + tx.clone(), ), base: BaseTransport { relay_pool, @@ -256,6 +257,7 @@ impl NostrServerTransport { config.server_info.clone(), config.encryption_mode, config.gift_wrap_mode, + tx.clone(), ), base: BaseTransport { relay_pool, @@ -430,6 +432,7 @@ impl NostrServerTransport { for handle in self.task_handles.drain(..) { let _ = handle.await; } + self.announcement_manager.shutdown(); self.message_tx.take(); self.base.disconnect().await?; self.sessions.clear().await; @@ -705,6 +708,34 @@ impl NostrServerTransport { self.announcement_manager.delete_announcements(reason).await } + /// Spawn the CEP-6 auto-publish task if `is_announced_server` is set. + /// + /// Called by the rmcp worker after `start()` — not in `start()` itself — + /// because the auto-publish flow injects synthetic MCP requests that + /// require an rmcp handler to produce responses. + #[cfg_attr(not(feature = "rmcp"), allow(dead_code))] + pub(crate) fn spawn_announcements(&mut self) { + if self.config.is_announced_server { + let handle = self + .announcement_manager + .spawn_publish_public_announcements(self.cancellation_token.child_token()); + self.task_handles.push(handle); + } + } + + /// Forward an announcement response to the announcement manager for publishing. + /// + /// Called by the worker when a response with the announcement sentinel ID arrives. + #[cfg_attr(not(feature = "rmcp"), allow(dead_code))] + pub(crate) async fn handle_announcement_response( + &self, + response: JsonRpcMessage, + ) -> Result<()> { + self.announcement_manager + .handle_announcement_response(response) + .await + } + /// Publish tools list from rmcp typed tool descriptors. #[cfg(feature = "rmcp")] pub async fn publish_tools_typed(&self, tools: Vec) -> Result { From 01aee12df8bfda2202348cc31af109a7dd2620c8 Mon Sep 17 00:00:00 2001 From: Harsh Date: Wed, 20 May 2026 02:26:17 +0530 Subject: [PATCH 084/116] feat: relay list and profile metadata publishing (CEP-6) --- src/gateway/mod.rs | 4 + src/transport/server/announcement_manager.rs | 493 ++++++++++++++++++- src/transport/server/mod.rs | 56 +++ 3 files changed, 552 insertions(+), 1 deletion(-) diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index 9e637c9..b452d9c 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -139,6 +139,10 @@ mod tests { cleanup_interval: Duration::from_secs(120), session_timeout: Duration::from_secs(600), request_timeout: Duration::from_secs(60), + relay_list_urls: None, + bootstrap_relay_urls: None, + publish_relay_list: true, + profile_metadata: None, }; let config = GatewayConfig { nostr_config }; diff --git a/src/transport/server/announcement_manager.rs b/src/transport/server/announcement_manager.rs index bc81d62..976a33f 100644 --- a/src/transport/server/announcement_manager.rs +++ b/src/transport/server/announcement_manager.rs @@ -3,6 +3,7 @@ //! Encapsulates tag composition, caching, and publishing for CEP-6 server //! announcements (kinds 11316–11320) and CEP-35 first-response discovery. +use std::collections::HashSet; use std::sync::{Arc, Mutex}; use std::time::Duration; @@ -55,6 +56,39 @@ pub(crate) struct AnnouncementManager { /// rmcp worker — unused when the `rmcp` feature is disabled. #[cfg_attr(not(feature = "rmcp"), allow(dead_code))] initialized: Mutex, + /// Transport's connected relay URLs (fallback for `relay_list_urls`). + relay_urls: Vec, + /// Explicit relay URLs to advertise in the kind 10002 relay list event. + relay_list_urls: Option>, + /// Additional bootstrap relay URLs for discoverability publication. + #[allow(dead_code)] // Used by get_discoverability_publish_relay_urls; reserved for relay-specific publish + bootstrap_relay_urls: Option>, + /// Whether to publish a relay list event (kind 10002). + should_publish_relay_list: bool, + /// NIP-01 profile metadata (kind 0) to publish at startup. + profile_metadata: Option, +} + +/// Check whether a relay URL points to a local address. +/// +/// Used for smart bootstrap relay detection: default bootstrap relays are +/// skipped when all advertised relays are local and no explicit bootstrap +/// URLs were provided. +#[allow(dead_code)] // Used by get_discoverability_publish_relay_urls +fn is_local_relay_url(url: &str) -> bool { + let without_proto = url + .strip_prefix("wss://") + .or_else(|| url.strip_prefix("ws://")) + .unwrap_or(url); + let lower = without_proto.to_lowercase(); + for prefix in &["localhost", "127.0.0.1", "0.0.0.0", "[::1]"] { + if let Some(rest) = lower.strip_prefix(prefix) { + if rest.is_empty() || rest.starts_with(':') || rest.starts_with('/') { + return true; + } + } + } + false } impl AnnouncementManager { @@ -63,12 +97,18 @@ impl AnnouncementManager { /// `dispatch_fn` is a clone of the transport's `message_tx` channel, used to /// inject synthetic MCP messages (initialize, notifications/initialized, /// capability list requests) during the auto-publish flow. + #[allow(clippy::too_many_arguments)] pub fn new( relay_pool: Arc, server_info: Option, encryption_mode: EncryptionMode, gift_wrap_mode: GiftWrapMode, dispatch_fn: tokio::sync::mpsc::UnboundedSender, + relay_urls: Vec, + relay_list_urls: Option>, + bootstrap_relay_urls: Option>, + should_publish_relay_list: bool, + profile_metadata: Option, ) -> Self { Self { relay_pool, @@ -82,6 +122,11 @@ impl AnnouncementManager { dispatch_fn: Some(dispatch_fn), init_notify: Arc::new(Notify::new()), initialized: Mutex::new(false), + relay_urls, + relay_list_urls, + bootstrap_relay_urls, + should_publish_relay_list, + profile_metadata, } } @@ -332,6 +377,189 @@ impl AnnouncementManager { self.publish_resource_templates(templates).await } + // ── Relay list + profile metadata (CEP-6) ───────────────────────── + + /// Returns the relay URLs to advertise in the kind 10002 relay list event. + /// + /// Uses `relay_list_urls` if explicitly configured, otherwise falls back + /// to the transport's connected `relay_urls`. + pub(crate) fn get_advertised_relay_urls(&self) -> &[String] { + self.relay_list_urls.as_deref().unwrap_or(&self.relay_urls) + } + + /// Compute relay URLs for discoverability event publication. + /// + /// Merges advertised relay URLs with bootstrap relay URLs, deduplicated. + /// Skips default bootstrap relays when all advertised URLs are local and + /// no explicit `bootstrap_relay_urls` were provided. + #[allow(dead_code)] // Reserved for relay-specific publish when RelayPoolTrait supports it + pub(crate) fn get_discoverability_publish_relay_urls(&self) -> Vec { + let advertised = self.get_advertised_relay_urls(); + let has_explicit_bootstrap = self.bootstrap_relay_urls.is_some(); + + let should_skip_bootstrap = !has_explicit_bootstrap + && !advertised.is_empty() + && advertised.iter().all(|url| is_local_relay_url(url)); + + let mut seen = HashSet::new(); + let mut result = Vec::new(); + + for url in advertised { + if seen.insert(url.clone()) { + result.push(url.clone()); + } + } + + if !should_skip_bootstrap { + let default_bootstrap: Vec = DEFAULT_BOOTSTRAP_RELAY_URLS + .iter() + .map(|s| (*s).to_string()) + .collect(); + let bootstrap = self + .bootstrap_relay_urls + .as_deref() + .unwrap_or(&default_bootstrap); + for url in bootstrap { + if seen.insert(url.clone()) { + result.push(url.clone()); + } + } + } + + result + } + + /// Publish relay list (kind 10002). + /// + /// No-op if `should_publish_relay_list` is false or no relay URLs are available. + #[allow(dead_code)] // API for direct use; spawn_publish_discoverability inlines the logic + pub(crate) async fn publish_relay_list(&self) -> Result<()> { + if !self.should_publish_relay_list { + return Ok(()); + } + let urls = self.get_advertised_relay_urls(); + if urls.is_empty() { + tracing::warn!(target: LOG_TARGET, "No relay URLs to publish relay list"); + return Ok(()); + } + let tags: Vec = urls + .iter() + .map(|url| Tag::custom(TagKind::Custom(tags::RELAY.into()), vec![url.clone()])) + .collect(); + let builder = + EventBuilder::new(Kind::Custom(RELAY_LIST_METADATA_KIND), "").tags(tags); + match self.relay_pool.publish(builder).await { + Ok(id) => tracing::info!( + target: LOG_TARGET, + event_id = %id, + "Published relay list (kind 10002)" + ), + Err(e) => tracing::warn!( + target: LOG_TARGET, + error = %e, + "Failed to publish relay list" + ), + } + Ok(()) + } + + /// Publish profile metadata (kind 0). + /// + /// No-op if `profile_metadata` is not configured. + #[allow(dead_code)] // API for direct use; spawn_publish_discoverability inlines the logic + pub(crate) async fn publish_profile_metadata(&self) -> Result<()> { + let metadata = match &self.profile_metadata { + Some(m) => m, + None => return Ok(()), + }; + let content = serde_json::to_string(metadata)?; + let builder = EventBuilder::new(Kind::Custom(0), content); + match self.relay_pool.publish(builder).await { + Ok(id) => tracing::info!( + target: LOG_TARGET, + event_id = %id, + "Published profile metadata (kind 0)" + ), + Err(e) => tracing::warn!( + target: LOG_TARGET, + error = %e, + "Failed to publish profile metadata" + ), + } + Ok(()) + } + + /// Spawn a task to publish profile metadata and relay list. + /// + /// Unconditional — guards live inside the individual publish methods. + /// Event-building logic mirrors `publish_relay_list()` and `publish_profile_metadata()`. + /// Duplication is intentional — `&self` can't be moved into a spawned task in Rust. + #[cfg_attr(not(feature = "rmcp"), allow(dead_code))] + pub(crate) fn spawn_publish_discoverability(&self) -> tokio::task::JoinHandle<()> { + let relay_pool = Arc::clone(&self.relay_pool); + + // Build events before spawning (borrows self) to avoid sending &self + let profile_event = self.profile_metadata.as_ref().and_then(|metadata| { + serde_json::to_string(metadata) + .ok() + .map(|content| EventBuilder::new(Kind::Custom(0), content)) + }); + + let relay_list_event = if self.should_publish_relay_list { + let urls = self.get_advertised_relay_urls(); + if urls.is_empty() { + None + } else { + let tags: Vec = urls + .iter() + .map(|url| { + Tag::custom(TagKind::Custom(tags::RELAY.into()), vec![url.clone()]) + }) + .collect(); + Some( + EventBuilder::new(Kind::Custom(RELAY_LIST_METADATA_KIND), "").tags(tags), + ) + } + } else { + None + }; + + tokio::spawn(async move { + if let Some(builder) = profile_event { + match relay_pool.publish(builder).await { + Ok(id) => tracing::info!( + target: LOG_TARGET, + event_id = %id, + "Published profile metadata (kind 0)" + ), + Err(e) => tracing::warn!( + target: LOG_TARGET, + error = %e, + "Failed to publish profile metadata" + ), + } + } + if let Some(builder) = relay_list_event { + match relay_pool.publish(builder).await { + Ok(id) => tracing::info!( + target: LOG_TARGET, + event_id = %id, + "Published relay list (kind 10002)" + ), + Err(e) => tracing::warn!( + target: LOG_TARGET, + error = %e, + "Failed to publish relay list" + ), + } + } + tracing::info!( + target: LOG_TARGET, + "Discoverability event publishing complete" + ); + }) + } + // ── Event loop support ───────────────────────────────────────── /// Snapshot the tag state needed by the event loop. @@ -636,7 +864,18 @@ mod tests { use crate::relay::mock::MockRelayPool; let pool: Arc = Arc::new(MockRelayPool::new()); let (tx, _rx) = tokio::sync::mpsc::unbounded_channel(); - AnnouncementManager::new(pool, server_info, encryption_mode, gift_wrap_mode, tx) + AnnouncementManager::new( + pool, + server_info, + encryption_mode, + gift_wrap_mode, + tx, + Vec::new(), + None, + None, + true, + None, + ) } // ── 1. Server info tags ──────────────────────────────────────── @@ -839,6 +1078,11 @@ mod tests { EncryptionMode::Disabled, GiftWrapMode::Optional, tx, + Vec::new(), + None, + None, + true, + None, ); (mgr, pool, rx) } @@ -1062,4 +1306,251 @@ mod tests { Some(NOTIFICATIONS_INITIALIZED_METHOD) ); } + + // ── 13. Relay list + profile metadata (CEP-6) ────────────────── + + fn make_manager_with_discoverability( + relay_urls: Vec, + relay_list_urls: Option>, + bootstrap_relay_urls: Option>, + publish_relay_list: bool, + profile_metadata: Option, + ) -> (AnnouncementManager, Arc) { + use crate::relay::mock::MockRelayPool; + let pool = Arc::new(MockRelayPool::new()); + let (tx, _rx) = tokio::sync::mpsc::unbounded_channel(); + let mgr = AnnouncementManager::new( + Arc::clone(&pool) as Arc, + None, + EncryptionMode::Disabled, + GiftWrapMode::Optional, + tx, + relay_urls, + relay_list_urls, + bootstrap_relay_urls, + publish_relay_list, + profile_metadata, + ); + (mgr, pool) + } + + #[test] + fn is_local_relay_url_detects_localhost() { + assert!(is_local_relay_url("ws://localhost:7777")); + assert!(is_local_relay_url("wss://localhost")); + assert!(is_local_relay_url("ws://127.0.0.1:8080")); + assert!(is_local_relay_url("ws://0.0.0.0:9999")); + assert!(is_local_relay_url("ws://[::1]:7777")); + } + + #[test] + fn is_local_relay_url_rejects_remote() { + assert!(!is_local_relay_url("wss://relay.damus.io")); + assert!(!is_local_relay_url("wss://relay.example.com")); + assert!(!is_local_relay_url("ws://10.0.0.1:7777")); + } + + #[test] + fn get_advertised_relay_urls_uses_relay_list_when_set() { + let (mgr, _pool) = make_manager_with_discoverability( + vec!["wss://connected.relay".into()], + Some(vec!["wss://advertised.relay".into()]), + None, + true, + None, + ); + assert_eq!(mgr.get_advertised_relay_urls(), &["wss://advertised.relay"]); + } + + #[test] + fn get_advertised_relay_urls_falls_back_to_relay_urls() { + let (mgr, _pool) = make_manager_with_discoverability( + vec!["wss://connected.relay".into()], + None, + None, + true, + None, + ); + assert_eq!(mgr.get_advertised_relay_urls(), &["wss://connected.relay"]); + } + + #[test] + fn get_discoverability_urls_merges_bootstrap() { + let (mgr, _pool) = make_manager_with_discoverability( + vec!["wss://my.relay".into()], + None, + None, + true, + None, + ); + let urls = mgr.get_discoverability_publish_relay_urls(); + assert!(urls.contains(&"wss://my.relay".to_string())); + // Should include default bootstrap relays + assert!(urls.len() > 1); + assert!(urls.contains(&DEFAULT_BOOTSTRAP_RELAY_URLS[0].to_string())); + } + + #[test] + fn get_discoverability_urls_skips_bootstrap_for_local_only() { + let (mgr, _pool) = make_manager_with_discoverability( + vec!["ws://127.0.0.1:7777".into()], + None, + None, + true, + None, + ); + let urls = mgr.get_discoverability_publish_relay_urls(); + assert_eq!(urls, vec!["ws://127.0.0.1:7777"]); + } + + #[test] + fn get_discoverability_urls_keeps_explicit_bootstrap_even_for_local() { + let (mgr, _pool) = make_manager_with_discoverability( + vec!["ws://127.0.0.1:7777".into()], + None, + Some(vec!["wss://explicit-bootstrap.relay".into()]), + true, + None, + ); + let urls = mgr.get_discoverability_publish_relay_urls(); + assert!(urls.contains(&"ws://127.0.0.1:7777".to_string())); + assert!(urls.contains(&"wss://explicit-bootstrap.relay".to_string())); + } + + #[test] + fn get_discoverability_urls_deduplicates() { + let (mgr, _pool) = make_manager_with_discoverability( + vec!["wss://relay.damus.io".into()], + None, + None, + true, + None, + ); + let urls = mgr.get_discoverability_publish_relay_urls(); + let damus_count = urls + .iter() + .filter(|u| *u == "wss://relay.damus.io") + .count(); + assert_eq!(damus_count, 1, "should be deduplicated"); + } + + #[tokio::test] + async fn publish_relay_list_event_shape() { + let (mgr, pool) = make_manager_with_discoverability( + vec![ + "wss://relay1.example.com".into(), + "wss://relay2.example.com".into(), + ], + None, + None, + true, + None, + ); + mgr.publish_relay_list().await.unwrap(); + let events = pool.stored_events().await; + assert_eq!(events.len(), 1); + assert_eq!(events[0].kind, Kind::Custom(RELAY_LIST_METADATA_KIND)); + assert_eq!(events[0].content, ""); + let tag_values: Vec = events[0] + .tags + .iter() + .filter(|t| (*t).clone().to_vec().first().map(|s| s.as_str()) == Some("r")) + .filter_map(|t| (*t).clone().to_vec().get(1).cloned()) + .collect(); + assert_eq!( + tag_values, + vec!["wss://relay1.example.com", "wss://relay2.example.com"] + ); + } + + #[tokio::test] + async fn publish_relay_list_uses_relay_list_urls_override() { + let (mgr, pool) = make_manager_with_discoverability( + vec!["wss://connected.relay".into()], + Some(vec!["wss://override.relay".into()]), + None, + true, + None, + ); + mgr.publish_relay_list().await.unwrap(); + let events = pool.stored_events().await; + assert_eq!(events.len(), 1); + let tag_values: Vec = events[0] + .tags + .iter() + .filter(|t| (*t).clone().to_vec().first().map(|s| s.as_str()) == Some("r")) + .filter_map(|t| (*t).clone().to_vec().get(1).cloned()) + .collect(); + assert_eq!(tag_values, vec!["wss://override.relay"]); + } + + #[tokio::test] + async fn publish_relay_list_opt_out() { + let (mgr, pool) = make_manager_with_discoverability( + vec!["wss://relay.example.com".into()], + None, + None, + false, + None, + ); + mgr.publish_relay_list().await.unwrap(); + assert!( + pool.stored_events().await.is_empty(), + "should not publish when disabled" + ); + } + + #[tokio::test] + async fn publish_relay_list_empty_urls_no_publish() { + let (mgr, pool) = make_manager_with_discoverability( + Vec::new(), + None, + None, + true, + None, + ); + mgr.publish_relay_list().await.unwrap(); + assert!( + pool.stored_events().await.is_empty(), + "should not publish with no URLs" + ); + } + + #[tokio::test] + async fn publish_profile_metadata_event_shape() { + let metadata = ProfileMetadata::default() + .with_name("Test Server") + .with_about("A test MCP server"); + let (mgr, pool) = make_manager_with_discoverability( + Vec::new(), + None, + None, + true, + Some(metadata), + ); + mgr.publish_profile_metadata().await.unwrap(); + let events = pool.stored_events().await; + assert_eq!(events.len(), 1); + assert_eq!(events[0].kind, Kind::Custom(0)); + assert!(events[0].tags.is_empty()); + let parsed: ProfileMetadata = serde_json::from_str(&events[0].content).unwrap(); + assert_eq!(parsed.name.as_deref(), Some("Test Server")); + assert_eq!(parsed.about.as_deref(), Some("A test MCP server")); + } + + #[tokio::test] + async fn publish_profile_metadata_noop_when_unconfigured() { + let (mgr, pool) = make_manager_with_discoverability( + Vec::new(), + None, + None, + true, + None, + ); + mgr.publish_profile_metadata().await.unwrap(); + assert!( + pool.stored_events().await.is_empty(), + "should not publish without profile metadata" + ); + } } diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 1eeb368..cb848a8 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -62,6 +62,19 @@ pub struct NostrServerTransportConfig { /// This prevents leaks -- rmcp owns actual request timeout and cancellation. /// Keep this value above your rmcp request timeout to avoid premature cleanup. pub request_timeout: Duration, + /// Explicit relay URLs to advertise in kind 10002 (NIP-65 relay list). + /// + /// Falls back to the transport's `relay_urls` when omitted. + pub relay_list_urls: Option>, + /// Additional publication targets for discoverability events. + /// + /// Merged with `relay_list_urls` when computing where to send events. + /// Defaults to [`DEFAULT_BOOTSTRAP_RELAY_URLS`] when omitted. + pub bootstrap_relay_urls: Option>, + /// Whether to publish a relay list event (kind 10002). Default: `true`. + pub publish_relay_list: bool, + /// Optional NIP-01 profile metadata (kind 0) to publish at startup. + pub profile_metadata: Option, } impl Default for NostrServerTransportConfig { @@ -78,6 +91,10 @@ impl Default for NostrServerTransportConfig { cleanup_interval: Duration::from_secs(60), session_timeout: Duration::from_secs(300), request_timeout: Duration::from_secs(60), + relay_list_urls: None, + bootstrap_relay_urls: None, + publish_relay_list: true, + profile_metadata: None, } } } @@ -165,6 +182,26 @@ impl NostrServerTransportConfig { self.request_timeout = timeout; self } + /// Set explicit relay URLs to advertise in the relay list event (kind 10002). + pub fn with_relay_list_urls(mut self, urls: Vec) -> Self { + self.relay_list_urls = Some(urls); + self + } + /// Set additional bootstrap relay URLs for discoverability event publication. + pub fn with_bootstrap_relay_urls(mut self, urls: Vec) -> Self { + self.bootstrap_relay_urls = Some(urls); + self + } + /// Enable or disable relay list publication (kind 10002). + pub fn with_publish_relay_list(mut self, publish: bool) -> Self { + self.publish_relay_list = publish; + self + } + /// Set NIP-01 profile metadata (kind 0) for publication at startup. + pub fn with_profile_metadata(mut self, metadata: ProfileMetadata) -> Self { + self.profile_metadata = Some(metadata); + self + } } /// An incoming MCP request with metadata for routing the response. @@ -216,6 +253,11 @@ impl NostrServerTransport { config.encryption_mode, config.gift_wrap_mode, tx.clone(), + config.relay_urls.clone(), + config.relay_list_urls.clone(), + config.bootstrap_relay_urls.clone(), + config.publish_relay_list, + config.profile_metadata.clone(), ), base: BaseTransport { relay_pool, @@ -258,6 +300,11 @@ impl NostrServerTransport { config.encryption_mode, config.gift_wrap_mode, tx.clone(), + config.relay_urls.clone(), + config.relay_list_urls.clone(), + config.bootstrap_relay_urls.clone(), + config.publish_relay_list, + config.profile_metadata.clone(), ), base: BaseTransport { relay_pool, @@ -721,6 +768,11 @@ impl NostrServerTransport { .spawn_publish_public_announcements(self.cancellation_token.child_token()); self.task_handles.push(handle); } + // Unconditional: publish profile metadata and relay list (guards inside methods) + let handle = self + .announcement_manager + .spawn_publish_discoverability(); + self.task_handles.push(handle); } /// Forward an announcement response to the announcement manager for publishing. @@ -1511,6 +1563,10 @@ mod tests { assert_eq!(config.session_timeout, Duration::from_secs(300)); assert_eq!(config.request_timeout, Duration::from_secs(60)); assert!(config.server_info.is_none()); + assert!(config.relay_list_urls.is_none()); + assert!(config.bootstrap_relay_urls.is_none()); + assert!(config.publish_relay_list); + assert!(config.profile_metadata.is_none()); } // ── CEP-19 helper logic ────────────────────────────────────── From f6e8f921c5081855bdae91773408b6ec08f88244 Mon Sep 17 00:00:00 2001 From: Harsh Date: Wed, 20 May 2026 02:48:08 +0530 Subject: [PATCH 085/116] med --- src/transport/server/announcement_manager.rs | 44 +++++--------------- src/transport/server/mod.rs | 4 +- 2 files changed, 11 insertions(+), 37 deletions(-) diff --git a/src/transport/server/announcement_manager.rs b/src/transport/server/announcement_manager.rs index 976a33f..37cdcb9 100644 --- a/src/transport/server/announcement_manager.rs +++ b/src/transport/server/announcement_manager.rs @@ -61,7 +61,8 @@ pub(crate) struct AnnouncementManager { /// Explicit relay URLs to advertise in the kind 10002 relay list event. relay_list_urls: Option>, /// Additional bootstrap relay URLs for discoverability publication. - #[allow(dead_code)] // Used by get_discoverability_publish_relay_urls; reserved for relay-specific publish + #[allow(dead_code)] + // Used by get_discoverability_publish_relay_urls; reserved for relay-specific publish bootstrap_relay_urls: Option>, /// Whether to publish a relay list event (kind 10002). should_publish_relay_list: bool, @@ -446,8 +447,7 @@ impl AnnouncementManager { .iter() .map(|url| Tag::custom(TagKind::Custom(tags::RELAY.into()), vec![url.clone()])) .collect(); - let builder = - EventBuilder::new(Kind::Custom(RELAY_LIST_METADATA_KIND), "").tags(tags); + let builder = EventBuilder::new(Kind::Custom(RELAY_LIST_METADATA_KIND), "").tags(tags); match self.relay_pool.publish(builder).await { Ok(id) => tracing::info!( target: LOG_TARGET, @@ -512,13 +512,9 @@ impl AnnouncementManager { } else { let tags: Vec = urls .iter() - .map(|url| { - Tag::custom(TagKind::Custom(tags::RELAY.into()), vec![url.clone()]) - }) + .map(|url| Tag::custom(TagKind::Custom(tags::RELAY.into()), vec![url.clone()])) .collect(); - Some( - EventBuilder::new(Kind::Custom(RELAY_LIST_METADATA_KIND), "").tags(tags), - ) + Some(EventBuilder::new(Kind::Custom(RELAY_LIST_METADATA_KIND), "").tags(tags)) } } else { None @@ -1427,10 +1423,7 @@ mod tests { None, ); let urls = mgr.get_discoverability_publish_relay_urls(); - let damus_count = urls - .iter() - .filter(|u| *u == "wss://relay.damus.io") - .count(); + let damus_count = urls.iter().filter(|u| *u == "wss://relay.damus.io").count(); assert_eq!(damus_count, 1, "should be deduplicated"); } @@ -1502,13 +1495,7 @@ mod tests { #[tokio::test] async fn publish_relay_list_empty_urls_no_publish() { - let (mgr, pool) = make_manager_with_discoverability( - Vec::new(), - None, - None, - true, - None, - ); + let (mgr, pool) = make_manager_with_discoverability(Vec::new(), None, None, true, None); mgr.publish_relay_list().await.unwrap(); assert!( pool.stored_events().await.is_empty(), @@ -1521,13 +1508,8 @@ mod tests { let metadata = ProfileMetadata::default() .with_name("Test Server") .with_about("A test MCP server"); - let (mgr, pool) = make_manager_with_discoverability( - Vec::new(), - None, - None, - true, - Some(metadata), - ); + let (mgr, pool) = + make_manager_with_discoverability(Vec::new(), None, None, true, Some(metadata)); mgr.publish_profile_metadata().await.unwrap(); let events = pool.stored_events().await; assert_eq!(events.len(), 1); @@ -1540,13 +1522,7 @@ mod tests { #[tokio::test] async fn publish_profile_metadata_noop_when_unconfigured() { - let (mgr, pool) = make_manager_with_discoverability( - Vec::new(), - None, - None, - true, - None, - ); + let (mgr, pool) = make_manager_with_discoverability(Vec::new(), None, None, true, None); mgr.publish_profile_metadata().await.unwrap(); assert!( pool.stored_events().await.is_empty(), diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index cb848a8..008a5a0 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -769,9 +769,7 @@ impl NostrServerTransport { self.task_handles.push(handle); } // Unconditional: publish profile metadata and relay list (guards inside methods) - let handle = self - .announcement_manager - .spawn_publish_discoverability(); + let handle = self.announcement_manager.spawn_publish_discoverability(); self.task_handles.push(handle); } From 9ce91bc84f018d0c60c9a399c17aa320e8d4ea8b Mon Sep 17 00:00:00 2001 From: Harsh Date: Wed, 20 May 2026 21:27:13 +0530 Subject: [PATCH 086/116] fix: wire get_discoverability_publish_relay_urls() into actual publication via publish_to() on RelayPoolTrait --- src/relay/mock.rs | 5 +++ src/relay/mod.rs | 16 +++++++ src/transport/server/announcement_manager.rs | 44 +++++++++++++++----- tests/transport_integration.rs | 8 ++++ 4 files changed, 63 insertions(+), 10 deletions(-) diff --git a/src/relay/mock.rs b/src/relay/mock.rs index 2b181d6..63bebc9 100644 --- a/src/relay/mock.rs +++ b/src/relay/mock.rs @@ -229,6 +229,11 @@ impl RelayPoolTrait for MockRelayPool { Ok(()) } + + /// Mock ignores target URLs — delegates to `publish()`. + async fn publish_to(&self, _urls: &[String], builder: EventBuilder) -> Result { + self.publish(builder).await + } } // ── Helpers ─────────────────────────────────────────────────────────────────── diff --git a/src/relay/mod.rs b/src/relay/mod.rs index cfb0bc5..fed4339 100644 --- a/src/relay/mod.rs +++ b/src/relay/mod.rs @@ -34,6 +34,8 @@ pub trait RelayPoolTrait: Send + Sync { async fn public_key(&self) -> Result; /// Subscribe to events matching filters. async fn subscribe(&self, filters: Vec) -> Result<()>; + /// Sign and publish an event to specific relay URLs. + async fn publish_to(&self, urls: &[String], builder: EventBuilder) -> Result; } /// Relay pool wrapper for managing Nostr relay connections. @@ -135,6 +137,16 @@ impl RelayPool { } Ok(()) } + + /// Sign and publish an event to specific relay URLs. + pub async fn publish_to(&self, urls: &[String], builder: EventBuilder) -> Result { + let output = self + .client + .send_event_builder_to(urls, builder) + .await + .map_err(|e| Error::Transport(e.to_string()))?; + Ok(output.val) + } } #[async_trait] @@ -177,4 +189,8 @@ impl RelayPoolTrait for RelayPool { async fn subscribe(&self, filters: Vec) -> Result<()> { RelayPool::subscribe(self, filters).await } + + async fn publish_to(&self, urls: &[String], builder: EventBuilder) -> Result { + RelayPool::publish_to(self, urls, builder).await + } } diff --git a/src/transport/server/announcement_manager.rs b/src/transport/server/announcement_manager.rs index 37cdcb9..d47b620 100644 --- a/src/transport/server/announcement_manager.rs +++ b/src/transport/server/announcement_manager.rs @@ -61,8 +61,6 @@ pub(crate) struct AnnouncementManager { /// Explicit relay URLs to advertise in the kind 10002 relay list event. relay_list_urls: Option>, /// Additional bootstrap relay URLs for discoverability publication. - #[allow(dead_code)] - // Used by get_discoverability_publish_relay_urls; reserved for relay-specific publish bootstrap_relay_urls: Option>, /// Whether to publish a relay list event (kind 10002). should_publish_relay_list: bool, @@ -75,7 +73,6 @@ pub(crate) struct AnnouncementManager { /// Used for smart bootstrap relay detection: default bootstrap relays are /// skipped when all advertised relays are local and no explicit bootstrap /// URLs were provided. -#[allow(dead_code)] // Used by get_discoverability_publish_relay_urls fn is_local_relay_url(url: &str) -> bool { let without_proto = url .strip_prefix("wss://") @@ -393,7 +390,6 @@ impl AnnouncementManager { /// Merges advertised relay URLs with bootstrap relay URLs, deduplicated. /// Skips default bootstrap relays when all advertised URLs are local and /// no explicit `bootstrap_relay_urls` were provided. - #[allow(dead_code)] // Reserved for relay-specific publish when RelayPoolTrait supports it pub(crate) fn get_discoverability_publish_relay_urls(&self) -> Vec { let advertised = self.get_advertised_relay_urls(); let has_explicit_bootstrap = self.bootstrap_relay_urls.is_some(); @@ -433,7 +429,8 @@ impl AnnouncementManager { /// Publish relay list (kind 10002). /// /// No-op if `should_publish_relay_list` is false or no relay URLs are available. - #[allow(dead_code)] // API for direct use; spawn_publish_discoverability inlines the logic + /// Publishes to the merged advertised + bootstrap relay set. + #[cfg(test)] pub(crate) async fn publish_relay_list(&self) -> Result<()> { if !self.should_publish_relay_list { return Ok(()); @@ -448,7 +445,7 @@ impl AnnouncementManager { .map(|url| Tag::custom(TagKind::Custom(tags::RELAY.into()), vec![url.clone()])) .collect(); let builder = EventBuilder::new(Kind::Custom(RELAY_LIST_METADATA_KIND), "").tags(tags); - match self.relay_pool.publish(builder).await { + match self.publish_to_discoverability_relays(builder).await { Ok(id) => tracing::info!( target: LOG_TARGET, event_id = %id, @@ -466,7 +463,8 @@ impl AnnouncementManager { /// Publish profile metadata (kind 0). /// /// No-op if `profile_metadata` is not configured. - #[allow(dead_code)] // API for direct use; spawn_publish_discoverability inlines the logic + /// Publishes to the merged advertised + bootstrap relay set. + #[cfg(test)] pub(crate) async fn publish_profile_metadata(&self) -> Result<()> { let metadata = match &self.profile_metadata { Some(m) => m, @@ -474,7 +472,7 @@ impl AnnouncementManager { }; let content = serde_json::to_string(metadata)?; let builder = EventBuilder::new(Kind::Custom(0), content); - match self.relay_pool.publish(builder).await { + match self.publish_to_discoverability_relays(builder).await { Ok(id) => tracing::info!( target: LOG_TARGET, event_id = %id, @@ -489,6 +487,21 @@ impl AnnouncementManager { Ok(()) } + /// Publish an event to the discoverability relay set. + /// + /// Uses `get_discoverability_publish_relay_urls()` for targeted publication + /// when bootstrap relays are configured. Falls back to pool-wide publish + /// when the merged set is empty. + #[cfg(test)] + async fn publish_to_discoverability_relays(&self, builder: EventBuilder) -> Result { + let urls = self.get_discoverability_publish_relay_urls(); + if urls.is_empty() { + self.relay_pool.publish(builder).await + } else { + self.relay_pool.publish_to(&urls, builder).await + } + } + /// Spawn a task to publish profile metadata and relay list. /// /// Unconditional — guards live inside the individual publish methods. @@ -497,6 +510,7 @@ impl AnnouncementManager { #[cfg_attr(not(feature = "rmcp"), allow(dead_code))] pub(crate) fn spawn_publish_discoverability(&self) -> tokio::task::JoinHandle<()> { let relay_pool = Arc::clone(&self.relay_pool); + let target_urls = self.get_discoverability_publish_relay_urls(); // Build events before spawning (borrows self) to avoid sending &self let profile_event = self.profile_metadata.as_ref().and_then(|metadata| { @@ -522,7 +536,12 @@ impl AnnouncementManager { tokio::spawn(async move { if let Some(builder) = profile_event { - match relay_pool.publish(builder).await { + let result = if target_urls.is_empty() { + relay_pool.publish(builder).await + } else { + relay_pool.publish_to(&target_urls, builder).await + }; + match result { Ok(id) => tracing::info!( target: LOG_TARGET, event_id = %id, @@ -536,7 +555,12 @@ impl AnnouncementManager { } } if let Some(builder) = relay_list_event { - match relay_pool.publish(builder).await { + let result = if target_urls.is_empty() { + relay_pool.publish(builder).await + } else { + relay_pool.publish_to(&target_urls, builder).await + }; + match result { Ok(id) => tracing::info!( target: LOG_TARGET, event_id = %id, diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index 7bcaf1a..37ad20a 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -120,6 +120,14 @@ impl RelayPoolTrait for TestRelayPool { async fn subscribe(&self, filters: Vec) -> contextvm_sdk::Result<()> { self.inner.subscribe(filters).await } + + async fn publish_to( + &self, + urls: &[String], + builder: EventBuilder, + ) -> contextvm_sdk::Result { + self.inner.publish_to(urls, builder).await + } } /// Let spawned event loops call `notifications()` before we publish anything. From 628c6ca4239c9dc93e3cd0edf8fad017600ff599 Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 21 May 2026 05:51:35 +0530 Subject: [PATCH 087/116] feat: CEP-6 PR 4 - schema mapping table, delete fix, integration tests, and gap closures --- src/relay/mock.rs | 15 + src/relay/mod.rs | 17 + src/transport/server/announcement_manager.rs | 415 +++++++++++++++++-- tests/transport_integration.rs | 62 ++- 4 files changed, 462 insertions(+), 47 deletions(-) diff --git a/src/relay/mock.rs b/src/relay/mock.rs index 63bebc9..cf934f6 100644 --- a/src/relay/mock.rs +++ b/src/relay/mock.rs @@ -234,6 +234,21 @@ impl RelayPoolTrait for MockRelayPool { async fn publish_to(&self, _urls: &[String], builder: EventBuilder) -> Result { self.publish(builder).await } + + /// Return stored events matching the filter. + async fn fetch_events( + &self, + filter: Filter, + _timeout: std::time::Duration, + ) -> Result> { + let inner = self.inner.lock().await; + Ok(inner + .events + .iter() + .filter(|e| filter.match_event(e, MatchEventOptions::default())) + .cloned() + .collect()) + } } // ── Helpers ─────────────────────────────────────────────────────────────────── diff --git a/src/relay/mod.rs b/src/relay/mod.rs index fed4339..0af8388 100644 --- a/src/relay/mod.rs +++ b/src/relay/mod.rs @@ -12,6 +12,7 @@ use async_trait::async_trait; use crate::core::error::{Error, Result}; use nostr_sdk::prelude::*; use std::sync::Arc; +use std::time::Duration; /// Trait abstracting relay pool operations, enabling dependency injection and testing. #[async_trait] @@ -36,6 +37,8 @@ pub trait RelayPoolTrait: Send + Sync { async fn subscribe(&self, filters: Vec) -> Result<()>; /// Sign and publish an event to specific relay URLs. async fn publish_to(&self, urls: &[String], builder: EventBuilder) -> Result; + /// Fetch events matching a filter from connected relays. + async fn fetch_events(&self, filter: Filter, timeout: Duration) -> Result>; } /// Relay pool wrapper for managing Nostr relay connections. @@ -147,6 +150,16 @@ impl RelayPool { .map_err(|e| Error::Transport(e.to_string()))?; Ok(output.val) } + + /// Fetch events matching a filter from connected relays. + pub async fn fetch_events(&self, filter: Filter, timeout: Duration) -> Result> { + let events = self + .client + .fetch_events(filter, timeout) + .await + .map_err(|e| Error::Transport(e.to_string()))?; + Ok(events.into_iter().collect()) + } } #[async_trait] @@ -193,4 +206,8 @@ impl RelayPoolTrait for RelayPool { async fn publish_to(&self, urls: &[String], builder: EventBuilder) -> Result { RelayPool::publish_to(self, urls, builder).await } + + async fn fetch_events(&self, filter: Filter, timeout: Duration) -> Result> { + RelayPool::fetch_events(self, filter, timeout).await + } } diff --git a/src/transport/server/announcement_manager.rs b/src/transport/server/announcement_manager.rs index d47b620..b48c614 100644 --- a/src/transport/server/announcement_manager.rs +++ b/src/transport/server/announcement_manager.rs @@ -68,6 +68,47 @@ pub(crate) struct AnnouncementManager { profile_metadata: Option, } +/// Maps an MCP result schema to the Nostr event kind for announcement publishing. +/// +/// The `matches` function validates the result's structure (not just field presence), +/// matching the TS SDK's Zod `safeParse` semantics. +struct AnnouncementMapping { + matches: fn(&serde_json::Value) -> bool, + kind: u16, +} + +/// Schema-to-kind mapping table for MCP announcement responses. +/// +/// Checked in order — first match wins. Validation checks field types: +/// `protocolVersion` must be a string, `capabilities` must be an object, +/// and capability lists (`tools`, `resources`, etc.) must be arrays. +const ANNOUNCEMENT_MAPPINGS: &[AnnouncementMapping] = &[ + AnnouncementMapping { + matches: |r| r.get("protocolVersion").is_some_and(|v| v.is_string()), + kind: SERVER_ANNOUNCEMENT_KIND, + }, + AnnouncementMapping { + matches: |r| r.get("capabilities").is_some_and(|v| v.is_object()), + kind: SERVER_ANNOUNCEMENT_KIND, + }, + AnnouncementMapping { + matches: |r| r.get("tools").is_some_and(|v| v.is_array()), + kind: TOOLS_LIST_KIND, + }, + AnnouncementMapping { + matches: |r| r.get("resources").is_some_and(|v| v.is_array()), + kind: RESOURCES_LIST_KIND, + }, + AnnouncementMapping { + matches: |r| r.get("resourceTemplates").is_some_and(|v| v.is_array()), + kind: RESOURCETEMPLATES_LIST_KIND, + }, + AnnouncementMapping { + matches: |r| r.get("prompts").is_some_and(|v| v.is_array()), + kind: PROMPTS_LIST_KIND, + }, +]; + /// Check whether a relay URL points to a local address. /// /// Used for smart bootstrap relay detection: default bootstrap relays are @@ -315,12 +356,22 @@ impl AnnouncementManager { } /// Delete server announcements (NIP-09 kind 5). + /// + /// Queries existing announcement events per kind and publishes kind 5 + /// deletion events with `["e", event_id]` tags, matching TS SDK behavior. pub async fn delete_announcements(&self, reason: &str) -> Result<()> { - for kind in UNENCRYPTED_KINDS { - let builder = EventBuilder::new(Kind::Custom(5), reason).tag(Tag::custom( - TagKind::Custom("k".into()), - vec![kind.to_string()], - )); + let pubkey = self.relay_pool.public_key().await?; + for &kind in UNENCRYPTED_KINDS { + let filter = Filter::new().kind(Kind::Custom(kind)).author(pubkey); + let events = self + .relay_pool + .fetch_events(filter, Duration::from_secs(10)) + .await?; + if events.is_empty() { + continue; + } + let tags: Vec = events.iter().map(|e| Tag::event(e.id)).collect(); + let builder = EventBuilder::new(Kind::Custom(5), reason).tags(tags); self.relay_pool.publish(builder).await?; } Ok(()) @@ -642,25 +693,18 @@ impl AnnouncementManager { _ => return Ok(()), }; - // Determine event kind from response schema. - let kind = - if result.get("protocolVersion").is_some() || result.get("capabilities").is_some() { - Some(SERVER_ANNOUNCEMENT_KIND) - } else if result.get("tools").is_some() { - Some(TOOLS_LIST_KIND) - } else if result.get("resources").is_some() { - Some(RESOURCES_LIST_KIND) - } else if result.get("resourceTemplates").is_some() { - Some(RESOURCETEMPLATES_LIST_KIND) - } else if result.get("prompts").is_some() { - Some(PROMPTS_LIST_KIND) - } else { - tracing::warn!( - target: LOG_TARGET, - "Announcement response has unrecognized schema, skipping publish" - ); - None - }; + // Determine event kind via the schema-to-kind mapping table. + let kind = ANNOUNCEMENT_MAPPINGS + .iter() + .find(|m| (m.matches)(result)) + .map(|m| m.kind); + + if kind.is_none() { + tracing::warn!( + target: LOG_TARGET, + "Announcement response has unrecognized schema, skipping publish" + ); + } if let Some(kind) = kind { let content = serde_json::to_string(result)?; @@ -1553,4 +1597,327 @@ mod tests { "should not publish without profile metadata" ); } + + // ── 14. Integration tests + cleanup (CEP-6) ──────────────────── + + #[test] + fn announcement_mapping_table_covers_all_kinds() { + let kinds: HashSet = ANNOUNCEMENT_MAPPINGS.iter().map(|m| m.kind).collect(); + assert!(kinds.contains(&SERVER_ANNOUNCEMENT_KIND)); + assert!(kinds.contains(&TOOLS_LIST_KIND)); + assert!(kinds.contains(&RESOURCES_LIST_KIND)); + assert!(kinds.contains(&RESOURCETEMPLATES_LIST_KIND)); + assert!(kinds.contains(&PROMPTS_LIST_KIND)); + } + + #[test] + fn announcement_mapping_resource_templates_regression() { + let result = serde_json::json!({ "resourceTemplates": [] }); + let kind = ANNOUNCEMENT_MAPPINGS + .iter() + .find(|m| (m.matches)(&result)) + .map(|m| m.kind); + assert_eq!(kind, Some(RESOURCETEMPLATES_LIST_KIND)); + } + + #[test] + fn announcement_mapping_rejects_null_field() { + let result = serde_json::json!({ "tools": null }); + let kind = ANNOUNCEMENT_MAPPINGS + .iter() + .find(|m| (m.matches)(&result)) + .map(|m| m.kind); + assert_eq!(kind, None, "null field should not match any schema"); + } + + #[test] + fn announcement_mapping_rejects_wrong_type() { + let result = serde_json::json!({ "tools": "not an array" }); + let kind = ANNOUNCEMENT_MAPPINGS + .iter() + .find(|m| (m.matches)(&result)) + .map(|m| m.kind); + assert_eq!(kind, None, "string field should not match array schema"); + } + + #[tokio::test] + async fn handle_announcement_response_rejects_malformed_payload() { + let (mgr, pool, _rx) = make_manager_with_pool(None); + + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(ANNOUNCEMENT_REQUEST_ID), + result: serde_json::json!({ "tools": null }), + }); + mgr.handle_announcement_response(response).await.unwrap(); + assert!( + pool.stored_events().await.is_empty(), + "malformed payload should not produce an event" + ); + } + + #[tokio::test] + async fn roundtrip_publish_discover_all_5_kinds() { + let info = ServerInfo { + name: Some("Roundtrip".into()), + ..Default::default() + }; + let (mgr, pool, _rx) = make_manager_with_pool(Some(info)); + + let responses = vec![ + serde_json::json!({ + "protocolVersion": "2025-11-25", + "capabilities": {"tools": {}}, + "serverInfo": {"name": "Roundtrip", "version": "1.0"} + }), + serde_json::json!({"tools": [{"name": "echo"}]}), + serde_json::json!({"resources": [{"name": "config"}]}), + serde_json::json!({"resourceTemplates": [{"name": "tmpl"}]}), + serde_json::json!({"prompts": [{"name": "greet"}]}), + ]; + for result in responses { + mgr.handle_announcement_response(JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(ANNOUNCEMENT_REQUEST_ID), + result, + })) + .await + .unwrap(); + } + + // Discover via fetch_events for each kind + let pubkey = pool.mock_public_key(); + for (kind, key) in [ + (SERVER_ANNOUNCEMENT_KIND, "protocolVersion"), + (TOOLS_LIST_KIND, "tools"), + (RESOURCES_LIST_KIND, "resources"), + (RESOURCETEMPLATES_LIST_KIND, "resourceTemplates"), + (PROMPTS_LIST_KIND, "prompts"), + ] { + let filter = Filter::new().kind(Kind::Custom(kind)).author(pubkey); + let events = pool + .fetch_events(filter, Duration::from_secs(1)) + .await + .unwrap(); + assert_eq!(events.len(), 1, "kind {kind} should have exactly 1 event"); + let content: serde_json::Value = serde_json::from_str(&events[0].content).unwrap(); + assert!( + content.get(key).is_some(), + "kind {kind} content should contain '{key}'" + ); + } + } + + // ── 15. CEP-6 parity tests ────────────────────────────────────── + + #[tokio::test] + async fn publish_profile_metadata_preserves_custom_fields() { + let mut metadata = ProfileMetadata::default() + .with_name("Full Server") + .with_about("All fields present") + .with_picture("https://example.com/pic.png") + .with_banner("https://example.com/banner.png") + .with_website("https://example.com") + .with_nip05("server@example.com") + .with_lud16("server@walletofsatoshi.com"); + metadata + .extra + .insert("custom_flag".into(), serde_json::json!(true)); + + let (mgr, pool) = + make_manager_with_discoverability(Vec::new(), None, None, true, Some(metadata)); + mgr.publish_profile_metadata().await.unwrap(); + + let events = pool.stored_events().await; + assert_eq!(events.len(), 1); + let parsed: ProfileMetadata = serde_json::from_str(&events[0].content).unwrap(); + assert_eq!(parsed.name.as_deref(), Some("Full Server")); + assert_eq!(parsed.about.as_deref(), Some("All fields present")); + assert_eq!( + parsed.picture.as_deref(), + Some("https://example.com/pic.png") + ); + assert_eq!( + parsed.banner.as_deref(), + Some("https://example.com/banner.png") + ); + assert_eq!(parsed.website.as_deref(), Some("https://example.com")); + assert_eq!(parsed.nip05.as_deref(), Some("server@example.com")); + assert_eq!(parsed.lud16.as_deref(), Some("server@walletofsatoshi.com")); + assert_eq!( + parsed.extra.get("custom_flag"), + Some(&serde_json::json!(true)), + "custom field should survive publish round-trip" + ); + } + + #[tokio::test] + async fn publish_profile_metadata_publish_error_does_not_panic() { + // Configure profile metadata but give the manager an empty relay URL set. + // publish_to_discoverability_relays falls back to pool.publish() which + // succeeds on MockRelayPool — so instead we verify the method's own + // error-swallowing: it logs and returns Ok(()) rather than propagating. + let metadata = ProfileMetadata::default().with_name("Err Server"); + let (mgr, _pool) = + make_manager_with_discoverability(Vec::new(), None, None, true, Some(metadata)); + // Even with no relay URLs configured, the method should not panic. + let result = mgr.publish_profile_metadata().await; + assert!( + result.is_ok(), + "publish_profile_metadata should not panic or error" + ); + } + + #[tokio::test] + async fn private_server_publishes_relay_list_but_not_announcements() { + // A private server (is_announced_server: false at transport level) still + // publishes relay list for discoverability. The AnnouncementManager doesn't + // gate on is_announced_server — that's the transport's job — so calling + // publish_relay_list() should work, while never calling announce() means + // no kind 11316 events exist. + let (mgr, pool) = make_manager_with_discoverability( + vec!["wss://relay.example.com".into()], + None, + None, + true, + None, + ); + + // Publish relay list (kind 10002) — should succeed. + mgr.publish_relay_list().await.unwrap(); + + let events = pool.stored_events().await; + let relay_list_events: Vec<_> = events + .iter() + .filter(|e| e.kind == Kind::Custom(RELAY_LIST_METADATA_KIND)) + .collect(); + assert_eq!( + relay_list_events.len(), + 1, + "relay list (kind 10002) should be published" + ); + + // No kind 11316 events — announce() was never called (private server). + let announcement_events: Vec<_> = events + .iter() + .filter(|e| e.kind == Kind::Custom(SERVER_ANNOUNCEMENT_KIND)) + .collect(); + assert!( + announcement_events.is_empty(), + "private server should have no kind 11316 announcements" + ); + } + + #[tokio::test] + async fn relay_list_advertises_different_urls_than_bootstrap() { + let (mgr, pool) = make_manager_with_discoverability( + vec!["wss://connected.relay".into()], + Some(vec![ + "wss://public1.relay".into(), + "wss://public2.relay".into(), + ]), + Some(vec!["wss://bootstrap.relay".into()]), + true, + None, + ); + mgr.publish_relay_list().await.unwrap(); + + let events = pool.stored_events().await; + assert_eq!(events.len(), 1); + let tag_values: Vec = events[0] + .tags + .iter() + .filter(|t| (*t).clone().to_vec().first().map(|s| s.as_str()) == Some("r")) + .filter_map(|t| (*t).clone().to_vec().get(1).cloned()) + .collect(); + assert_eq!( + tag_values, + vec!["wss://public1.relay", "wss://public2.relay"], + "kind 10002 tags should contain only relay_list_urls" + ); + assert!( + !tag_values.contains(&"wss://bootstrap.relay".to_string()), + "bootstrap URLs must not appear in kind 10002 tags" + ); + } + + #[tokio::test] + async fn profile_metadata_published_regardless_of_announced_server() { + // Profile metadata (kind 0) is decoupled from is_announced_server. + // The AnnouncementManager publishes it whenever configured, even if the + // transport never calls announce(). + let metadata = ProfileMetadata::default() + .with_name("Private Server") + .with_about("Not publicly announced"); + let (mgr, pool) = + make_manager_with_discoverability(Vec::new(), None, None, true, Some(metadata)); + + // Publish only profile metadata — do NOT call announce(). + mgr.publish_profile_metadata().await.unwrap(); + + let events = pool.stored_events().await; + let profile_events: Vec<_> = events + .iter() + .filter(|e| e.kind == Kind::Custom(0)) + .collect(); + assert_eq!( + profile_events.len(), + 1, + "kind 0 should be published even without announcements" + ); + + let announcement_events: Vec<_> = events + .iter() + .filter(|e| e.kind == Kind::Custom(SERVER_ANNOUNCEMENT_KIND)) + .collect(); + assert!( + announcement_events.is_empty(), + "no kind 11316 should exist when announce() not called" + ); + } + + #[tokio::test] + async fn delete_announcements_uses_e_tags() { + let info = ServerInfo { + name: Some("Del".into()), + ..Default::default() + }; + let (mgr, pool, _rx) = make_manager_with_pool(Some(info)); + + // Publish an announcement (kind 11316) + mgr.announce().await.unwrap(); + let published = pool.stored_events().await; + let announcement_id = published[0].id; + + // Delete + mgr.delete_announcements("going offline").await.unwrap(); + + // Find deletion events (kind 5) + let all_events = pool.stored_events().await; + let deletion_events: Vec<_> = all_events + .iter() + .filter(|e| e.kind == Kind::Custom(5)) + .collect(); + assert!(!deletion_events.is_empty(), "should have deletion events"); + + // Verify ["e", event_id] tags, not ["k", kind] + let del = &deletion_events[0]; + let tags: Vec> = del.tags.iter().map(|t| (*t).clone().to_vec()).collect(); + assert!(!tags.is_empty(), "deletion event should have tags"); + for tag in &tags { + assert_eq!(tag[0], "e", "deletion tag should be 'e', not 'k'"); + } + let ann_id_hex = announcement_id.to_hex(); + assert!( + tags.iter() + .any(|t| t.get(1).map(|s| s.as_str()) == Some(ann_id_hex.as_str())), + "deletion should reference the published announcement event ID" + ); + assert_eq!(del.content, "going offline"); + assert_eq!( + deletion_events.len(), + 1, + "only one kind was published so only one deletion event expected" + ); + } } diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index 37ad20a..47cf17d 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -128,6 +128,14 @@ impl RelayPoolTrait for TestRelayPool { ) -> contextvm_sdk::Result { self.inner.publish_to(urls, builder).await } + + async fn fetch_events( + &self, + filter: Filter, + timeout: Duration, + ) -> contextvm_sdk::Result> { + self.inner.fetch_events(filter, timeout).await + } } /// Let spawned event loops call `notifications()` before we publish anything. @@ -1507,7 +1515,7 @@ async fn publish_tools_empty_list() { assert!(arr.is_empty(), "empty tools list must produce tools: []"); } -// ── 23. Delete announcements k tags match kinds ───────────────────────────── +// ── 23. Delete announcements uses e tags referencing published events ───────── #[tokio::test] async fn delete_announcements_k_tags_match_kinds() { @@ -1531,36 +1539,44 @@ async fn delete_announcements_k_tags_match_kinds() { .expect("delete announcements"); let events = pool.stored_events().await; + + // Find the kind 11316 announcement that was published by announce() + let announcement = events + .iter() + .find(|e| e.kind == Kind::Custom(SERVER_ANNOUNCEMENT_KIND)) + .expect("should have a kind 11316 announcement event"); + let announcement_id = announcement.id; + + // Only 1 deletion event expected: only kind 11316 was announced let kind5_events: Vec<_> = events .iter() .filter(|e| e.kind == Kind::Custom(5)) .collect(); + assert_eq!( + kind5_events.len(), + 1, + "only one kind was announced so only one deletion event expected" + ); - assert_eq!(kind5_events.len(), 5); - - // Collect k tag values from all kind-5 events. - let mut k_values: Vec = kind5_events - .iter() - .filter_map(|e| { - contextvm_sdk::core::serializers::get_tag_value(&e.tags, "k") - .and_then(|v| v.parse::().ok()) - }) - .collect(); - k_values.sort(); + let del = &kind5_events[0]; - let mut expected = vec![ - SERVER_ANNOUNCEMENT_KIND, - TOOLS_LIST_KIND, - RESOURCES_LIST_KIND, - RESOURCETEMPLATES_LIST_KIND, - PROMPTS_LIST_KIND, - ]; - expected.sort(); + // Deletion uses ["e", event_id] tags (not ["k", kind]) + let tags: Vec> = del.tags.iter().map(|t| (*t).clone().to_vec()).collect(); + assert!(!tags.is_empty(), "deletion event should have tags"); + for tag in &tags { + assert_eq!(tag[0], "e", "deletion tag should be 'e', not 'k'"); + } - assert_eq!( - k_values, expected, - "each kind-5 event must have a k tag matching one announcement kind" + // The e tag must reference the announced event's ID + let ann_id_hex = announcement_id.to_hex(); + assert!( + tags.iter() + .any(|t| t.get(1).map(|s| s.as_str()) == Some(ann_id_hex.as_str())), + "deletion should reference the published announcement event ID" ); + + // Content is the reason string + assert_eq!(del.content, "shutting down"); } // ── 24. Encryption Disabled server rejects gift-wrap ──────────────────────── From e579c78962fe548b48a616723a29ecd9fea524e3 Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 21 May 2026 21:57:30 +0530 Subject: [PATCH 088/116] fix: address review - NIP-09 helper, real failure test, rename delete test --- src/transport/server/announcement_manager.rs | 93 +++++++++++++++++--- tests/transport_integration.rs | 2 +- 2 files changed, 81 insertions(+), 14 deletions(-) diff --git a/src/transport/server/announcement_manager.rs b/src/transport/server/announcement_manager.rs index b48c614..cd8d755 100644 --- a/src/transport/server/announcement_manager.rs +++ b/src/transport/server/announcement_manager.rs @@ -357,8 +357,8 @@ impl AnnouncementManager { /// Delete server announcements (NIP-09 kind 5). /// - /// Queries existing announcement events per kind and publishes kind 5 - /// deletion events with `["e", event_id]` tags, matching TS SDK behavior. + /// Queries existing announcement events per kind and publishes deletion + /// events with `["e", event_id]` tags via `EventBuilder::delete()`. pub async fn delete_announcements(&self, reason: &str) -> Result<()> { let pubkey = self.relay_pool.public_key().await?; for &kind in UNENCRYPTED_KINDS { @@ -370,9 +370,12 @@ impl AnnouncementManager { if events.is_empty() { continue; } - let tags: Vec = events.iter().map(|e| Tag::event(e.id)).collect(); - let builder = EventBuilder::new(Kind::Custom(5), reason).tags(tags); - self.relay_pool.publish(builder).await?; + let request = EventDeletionRequest::new() + .ids(events.iter().map(|e| e.id)) + .reason(reason); + self.relay_pool + .publish(EventBuilder::delete(request)) + .await?; } Ok(()) } @@ -1753,18 +1756,82 @@ mod tests { #[tokio::test] async fn publish_profile_metadata_publish_error_does_not_panic() { - // Configure profile metadata but give the manager an empty relay URL set. - // publish_to_discoverability_relays falls back to pool.publish() which - // succeeds on MockRelayPool — so instead we verify the method's own - // error-swallowing: it logs and returns Ok(()) rather than propagating. + use crate::relay::mock::MockRelayPool; + use std::sync::atomic::{AtomicBool, Ordering}; + + /// A relay pool that fails on publish when the flag is set. + struct FailingPool { + inner: MockRelayPool, + should_fail: AtomicBool, + } + + #[async_trait::async_trait] + impl RelayPoolTrait for FailingPool { + async fn connect(&self, urls: &[String]) -> Result<()> { + self.inner.connect(urls).await + } + async fn disconnect(&self) -> Result<()> { + self.inner.disconnect().await + } + async fn publish_event(&self, event: &Event) -> Result { + self.inner.publish_event(event).await + } + async fn publish(&self, builder: EventBuilder) -> Result { + if self.should_fail.load(Ordering::SeqCst) { + return Err(Error::Transport("injected publish failure".into())); + } + self.inner.publish(builder).await + } + async fn sign(&self, builder: EventBuilder) -> Result { + self.inner.sign(builder).await + } + async fn signer(&self) -> Result> { + self.inner.signer().await + } + fn notifications(&self) -> tokio::sync::broadcast::Receiver { + self.inner.notifications() + } + async fn public_key(&self) -> Result { + self.inner.public_key().await + } + async fn subscribe(&self, filters: Vec) -> Result<()> { + self.inner.subscribe(filters).await + } + async fn publish_to(&self, urls: &[String], builder: EventBuilder) -> Result { + if self.should_fail.load(Ordering::SeqCst) { + return Err(Error::Transport("injected publish failure".into())); + } + self.inner.publish_to(urls, builder).await + } + async fn fetch_events(&self, filter: Filter, timeout: Duration) -> Result> { + self.inner.fetch_events(filter, timeout).await + } + } + + let pool: Arc = Arc::new(FailingPool { + inner: MockRelayPool::new(), + should_fail: AtomicBool::new(true), + }); + let (tx, _rx) = tokio::sync::mpsc::unbounded_channel(); let metadata = ProfileMetadata::default().with_name("Err Server"); - let (mgr, _pool) = - make_manager_with_discoverability(Vec::new(), None, None, true, Some(metadata)); - // Even with no relay URLs configured, the method should not panic. + let mgr = AnnouncementManager::new( + pool, + None, + EncryptionMode::Disabled, + GiftWrapMode::Optional, + tx, + Vec::new(), + None, + None, + true, + Some(metadata), + ); + + // publish_profile_metadata swallows the error and returns Ok(()) let result = mgr.publish_profile_metadata().await; assert!( result.is_ok(), - "publish_profile_metadata should not panic or error" + "publish_profile_metadata should swallow publish errors" ); } diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index 47cf17d..45df053 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -1518,7 +1518,7 @@ async fn publish_tools_empty_list() { // ── 23. Delete announcements uses e tags referencing published events ───────── #[tokio::test] -async fn delete_announcements_k_tags_match_kinds() { +async fn delete_announcements_uses_e_tags_for_published_events() { let pool = Arc::new(MockRelayPool::new()); let mut server = NostrServerTransport::with_relay_pool( From de726a4b2d83dcac5bf67f7c45dd55928d6c08cb Mon Sep 17 00:00:00 2001 From: Harsh Date: Fri, 22 May 2026 02:39:07 +0530 Subject: [PATCH 089/116] feat: server identity parsing, relay list fetching, and fetch_events (CEP-17) --- src/relay/mock.rs | 27 +- src/relay/mod.rs | 32 +- src/transport/client/mod.rs | 55 ++- src/transport/client/server_identity.rs | 102 +++++ .../client/server_relay_discovery.rs | 369 ++++++++++++++++++ src/transport/server/announcement_manager.rs | 12 +- tests/transport_integration.rs | 4 +- 7 files changed, 553 insertions(+), 48 deletions(-) create mode 100644 src/transport/client/server_identity.rs create mode 100644 src/transport/client/server_relay_discovery.rs diff --git a/src/relay/mock.rs b/src/relay/mock.rs index cf934f6..301d639 100644 --- a/src/relay/mock.rs +++ b/src/relay/mock.rs @@ -10,6 +10,7 @@ use std::collections::HashMap; use std::sync::Arc; +use std::time::Duration; use async_trait::async_trait; use tokio::sync::Mutex; @@ -127,6 +128,13 @@ impl MockRelayPool { pub async fn stored_events(&self) -> Vec { self.inner.lock().await.events.clone() } + + /// Inject an externally-built event into the store without broadcasting. + /// + /// Useful for seeding kind 10002 relay-list events for `fetch_events()` tests. + pub async fn inject_event(&self, event: Event) { + self.inner.lock().await.events.push(event); + } } impl Default for MockRelayPool { @@ -235,19 +243,20 @@ impl RelayPoolTrait for MockRelayPool { self.publish(builder).await } - /// Return stored events matching the filter. - async fn fetch_events( - &self, - filter: Filter, - _timeout: std::time::Duration, - ) -> Result> { + /// Return stored events that match the given filters' kind and author constraints. + async fn fetch_events(&self, filters: Vec, _timeout: Duration) -> Result> { let inner = self.inner.lock().await; - Ok(inner + let matched: Vec = inner .events .iter() - .filter(|e| filter.match_event(e, MatchEventOptions::default())) + .filter(|e| { + filters + .iter() + .any(|f| f.match_event(e, MatchEventOptions::default())) + }) .cloned() - .collect()) + .collect(); + Ok(matched) } } diff --git a/src/relay/mod.rs b/src/relay/mod.rs index 0af8388..7db9da5 100644 --- a/src/relay/mod.rs +++ b/src/relay/mod.rs @@ -37,8 +37,8 @@ pub trait RelayPoolTrait: Send + Sync { async fn subscribe(&self, filters: Vec) -> Result<()>; /// Sign and publish an event to specific relay URLs. async fn publish_to(&self, urls: &[String], builder: EventBuilder) -> Result; - /// Fetch events matching a filter from connected relays. - async fn fetch_events(&self, filter: Filter, timeout: Duration) -> Result>; + /// Fetch events matching filters from connected relays. + async fn fetch_events(&self, filters: Vec, timeout: Duration) -> Result>; } /// Relay pool wrapper for managing Nostr relay connections. @@ -151,14 +151,22 @@ impl RelayPool { Ok(output.val) } - /// Fetch events matching a filter from connected relays. - pub async fn fetch_events(&self, filter: Filter, timeout: Duration) -> Result> { - let events = self - .client - .fetch_events(filter, timeout) - .await - .map_err(|e| Error::Transport(e.to_string()))?; - Ok(events.into_iter().collect()) + /// Fetch events matching filters from connected relays. + pub async fn fetch_events( + &self, + filters: Vec, + timeout: Duration, + ) -> Result> { + let mut all_events = Vec::new(); + for filter in filters { + let events = self + .client + .fetch_events(filter, timeout) + .await + .map_err(|e| Error::Transport(e.to_string()))?; + all_events.extend(events); + } + Ok(all_events) } } @@ -207,7 +215,7 @@ impl RelayPoolTrait for RelayPool { RelayPool::publish_to(self, urls, builder).await } - async fn fetch_events(&self, filter: Filter, timeout: Duration) -> Result> { - RelayPool::fetch_events(self, filter, timeout).await + async fn fetch_events(&self, filters: Vec, timeout: Duration) -> Result> { + RelayPool::fetch_events(self, filters, timeout).await } } diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index 424cea6..044bc14 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -4,6 +4,8 @@ //! kind 25910 events, correlates responses via `e` tag. pub mod correlation_store; +pub mod server_identity; +pub mod server_relay_discovery; pub use correlation_store::ClientCorrelationStore; @@ -17,7 +19,7 @@ use nostr_sdk::prelude::*; use tokio_util::sync::CancellationToken; use crate::core::constants::*; -use crate::core::error::{Error, Result}; +use crate::core::error::Result; use crate::core::serializers; use crate::core::types::*; use crate::core::validation; @@ -34,7 +36,10 @@ const LOG_TARGET: &str = "contextvm_sdk::transport::client"; pub struct NostrClientTransportConfig { /// Relay URLs to connect to. pub relay_urls: Vec, - /// The server's public key (hex). + /// The server's public key (hex, npub, or nprofile). + /// + /// When an nprofile is provided, embedded relay hints are extracted and used + /// during CEP-17 relay resolution. pub server_pubkey: String, /// Encryption mode. pub encryption_mode: EncryptionMode, @@ -64,7 +69,7 @@ impl Default for NostrClientTransportConfig { } impl NostrClientTransportConfig { - /// Set the server's public key (hex). + /// Set the server's public key (hex, npub, or nprofile). pub fn with_server_pubkey(mut self, pubkey: impl Into) -> Self { self.server_pubkey = pubkey.into(); self @@ -101,6 +106,9 @@ pub struct NostrClientTransport { base: BaseTransport, config: NostrClientTransportConfig, server_pubkey: PublicKey, + /// Populated from nprofile relay hints; used by relay resolution in `start()` (CEP-17). + #[allow(dead_code)] + hinted_relay_urls: Vec, /// Pending request event IDs awaiting responses. pending_requests: ClientCorrelationStore, /// CEP-35: one-shot flag for client discovery tag emission. @@ -130,15 +138,16 @@ impl NostrClientTransport { where T: IntoNostrSigner, { - let server_pubkey = PublicKey::from_hex(&config.server_pubkey).map_err(|error| { - tracing::error!( - target: LOG_TARGET, - error = %error, - server_pubkey = %config.server_pubkey, - "Invalid server pubkey" - ); - Error::Other(format!("Invalid server pubkey: {error}")) - })?; + let (server_pubkey, hinted_relay_urls) = + server_identity::parse_server_identity(&config.server_pubkey).map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + server_pubkey = %config.server_pubkey, + "Invalid server pubkey" + ); + error + })?; let relay_pool: Arc = Arc::new(RelayPool::new(signer).await.map_err(|error| { @@ -169,6 +178,7 @@ impl NostrClientTransport { }, config, server_pubkey, + hinted_relay_urls, pending_requests: ClientCorrelationStore::new(), has_sent_discovery_tags: AtomicBool::new(false), discovered_server_capabilities: Arc::new(Mutex::new(PeerCapabilities::default())), @@ -187,15 +197,16 @@ impl NostrClientTransport { config: NostrClientTransportConfig, relay_pool: Arc, ) -> Result { - let server_pubkey = PublicKey::from_hex(&config.server_pubkey).map_err(|error| { - tracing::error!( - target: LOG_TARGET, - error = %error, - server_pubkey = %config.server_pubkey, - "Invalid server pubkey" - ); - Error::Other(format!("Invalid server pubkey: {error}")) - })?; + let (server_pubkey, hinted_relay_urls) = + server_identity::parse_server_identity(&config.server_pubkey).map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + server_pubkey = %config.server_pubkey, + "Invalid server pubkey" + ); + error + })?; let (tx, rx) = tokio::sync::mpsc::unbounded_channel(); let seen_gift_wrap_ids = Arc::new(Mutex::new(LruCache::new( @@ -217,6 +228,7 @@ impl NostrClientTransport { }, config, server_pubkey, + hinted_relay_urls, pending_requests: ClientCorrelationStore::new(), has_sent_discovery_tags: AtomicBool::new(false), discovered_server_capabilities: Arc::new(Mutex::new(PeerCapabilities::default())), @@ -1092,6 +1104,7 @@ mod tests { ..Default::default() }, server_pubkey: keys.public_key(), + hinted_relay_urls: vec![], pending_requests: ClientCorrelationStore::new(), has_sent_discovery_tags: AtomicBool::new(false), discovered_server_capabilities: Arc::new(Mutex::new(PeerCapabilities::default())), diff --git a/src/transport/client/server_identity.rs b/src/transport/client/server_identity.rs new file mode 100644 index 0000000..21e46b0 --- /dev/null +++ b/src/transport/client/server_identity.rs @@ -0,0 +1,102 @@ +//! Server identity parsing for CEP-17 client-side relay discovery. +//! +//! Accepts hex pubkeys, npub (NIP-19), or nprofile (NIP-19) strings and +//! extracts the server's public key and any embedded relay hints. +//! Mirrors the TS SDK's `parseServerIdentity()`. + +use nostr_sdk::prelude::*; + +use crate::core::error::{Error, Result}; + +/// Parse a server identity string into a public key and optional relay hints. +/// +/// Supported formats: +/// - **Hex**: 64-character hex-encoded public key +/// - **npub**: NIP-19 bech32-encoded public key +/// - **nprofile**: NIP-19 bech32-encoded profile (pubkey + relay hints) +/// +/// Returns `(PublicKey, Vec)` where the second element contains relay +/// hint URLs extracted from an nprofile, or an empty vec for hex/npub. +pub fn parse_server_identity(input: &str) -> Result<(PublicKey, Vec)> { + // Try hex first + if let Ok(pk) = PublicKey::from_hex(input) { + return Ok((pk, vec![])); + } + + // Try bech32 (npub / nprofile) + match Nip19::from_bech32(input) { + Ok(Nip19::Pubkey(pk)) => Ok((pk, vec![])), + Ok(Nip19::Profile(profile)) => { + let relays: Vec = profile.relays.into_iter().map(|r| r.to_string()).collect(); + Ok((profile.public_key, relays)) + } + _ => Err(Error::Other(format!( + "Invalid serverPubkey format: {input}. Expected hex pubkey, npub, or nprofile." + ))), + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn hex_pubkey_roundtrip() { + let keys = Keys::generate(); + let hex = keys.public_key().to_hex(); + let (pk, hints) = parse_server_identity(&hex).unwrap(); + assert_eq!(pk, keys.public_key()); + assert!(hints.is_empty()); + } + + #[test] + fn npub_roundtrip() { + let keys = Keys::generate(); + let npub = keys.public_key().to_bech32().unwrap(); + let (pk, hints) = parse_server_identity(&npub).unwrap(); + assert_eq!(pk, keys.public_key()); + assert!(hints.is_empty()); + } + + #[test] + fn nprofile_with_relays() { + let keys = Keys::generate(); + let relay1 = RelayUrl::parse("wss://relay1.example.com").unwrap(); + let relay2 = RelayUrl::parse("wss://relay2.example.com").unwrap(); + let profile = Nip19Profile::new(keys.public_key(), vec![relay1.clone(), relay2.clone()]); + let nprofile = profile.to_bech32().unwrap(); + + let (pk, hints) = parse_server_identity(&nprofile).unwrap(); + assert_eq!(pk, keys.public_key()); + assert_eq!(hints.len(), 2); + assert!(hints.contains(&relay1.to_string())); + assert!(hints.contains(&relay2.to_string())); + } + + #[test] + fn nprofile_without_relays() { + let keys = Keys::generate(); + let profile = Nip19Profile::new(keys.public_key(), Vec::::new()); + let nprofile = profile.to_bech32().unwrap(); + + let (pk, hints) = parse_server_identity(&nprofile).unwrap(); + assert_eq!(pk, keys.public_key()); + assert!(hints.is_empty()); + } + + #[test] + fn invalid_string_returns_error() { + let result = parse_server_identity("not-a-valid-key"); + assert!(result.is_err()); + let err = result.unwrap_err().to_string(); + assert!(err.contains("Invalid serverPubkey format")); + assert!(err.contains("Expected hex pubkey, npub, or nprofile")); + } + + #[test] + fn invalid_npub_checksum_returns_error() { + // Valid npub prefix but corrupted data + let result = parse_server_identity("npub1invalidchecksum"); + assert!(result.is_err()); + } +} diff --git a/src/transport/client/server_relay_discovery.rs b/src/transport/client/server_relay_discovery.rs new file mode 100644 index 0000000..42812c0 --- /dev/null +++ b/src/transport/client/server_relay_discovery.rs @@ -0,0 +1,369 @@ +//! CEP-17 server relay list fetching and operational relay selection. +//! +//! Fetches kind 10002 relay-list metadata events from discovery relays and +//! selects operational relay URLs based on marker precedence (unmarked > read+write). +//! Mirrors the TS SDK's `fetchServerRelayList()` and `selectOperationalRelayUrls()`. + +use std::collections::HashSet; +use std::sync::Arc; +use std::time::Duration; + +use nostr_sdk::prelude::*; + +use crate::core::constants::{tags, RELAY_LIST_METADATA_KIND}; +use crate::core::error::Result; +use crate::relay::{RelayPool, RelayPoolTrait}; + +/// A single entry from a kind 10002 relay list event. +/// +/// Mirrors the TS SDK `RelayListEntry` interface. +#[derive(Debug, Clone, PartialEq)] +pub struct RelayListEntry { + /// The relay URL. + pub url: String, + /// Optional marker: `"read"`, `"write"`, or `None` (unmarked). + pub marker: Option, +} + +/// Select operational relay URLs from relay list entries using marker precedence. +/// +/// 1. If any entries are unmarked (no marker), return those URLs (deduplicated). +/// 2. Otherwise, return the union of `read` + `write` entries (deduplicated). +/// 3. Empty strings are filtered out in all cases. +/// +/// Mirrors the TS SDK `selectOperationalRelayUrls()`. +pub fn select_operational_relay_urls(entries: &[RelayListEntry]) -> Vec { + // Collect unmarked entries + let unmarked: Vec<&str> = entries + .iter() + .filter(|e| e.marker.is_none() && !e.url.is_empty()) + .map(|e| e.url.as_str()) + .collect(); + + if !unmarked.is_empty() { + return dedup(unmarked); + } + + // Fall back to read + write union + let read_write: Vec<&str> = entries + .iter() + .filter(|e| { + !e.url.is_empty() && matches!(e.marker.as_deref(), Some("read") | Some("write")) + }) + .map(|e| e.url.as_str()) + .collect(); + + dedup(read_write) +} + +/// Deduplicate URLs preserving first-seen order. +fn dedup(urls: Vec<&str>) -> Vec { + let mut seen = HashSet::new(); + urls.into_iter() + .filter(|u| seen.insert(*u)) + .map(|u| u.to_string()) + .collect() +} + +/// Fetch the server's kind 10002 relay list from discovery relays. +/// +/// Creates a temporary relay pool, connects to `relay_urls`, fetches kind 10002 +/// events for `server_pubkey`, extracts relay entries from the latest event, +/// and disconnects. Mirrors the TS SDK `fetchServerRelayList()`. +pub async fn fetch_server_relay_list( + server_pubkey: &PublicKey, + relay_urls: &[String], + signer: Arc, + timeout: Duration, +) -> Result> { + let pool = RelayPool::new(signer).await?; + pool.connect(relay_urls).await?; + let result = fetch_relay_list_from_pool(server_pubkey, &pool, timeout).await; + let _ = pool.disconnect().await; + result +} + +/// Core relay-list fetch+parse logic operating on an existing pool. +/// +/// Separated from [`fetch_server_relay_list`] so tests can inject events via +/// `MockRelayPool` without needing network access. +pub(crate) async fn fetch_relay_list_from_pool( + server_pubkey: &PublicKey, + relay_pool: &dyn RelayPoolTrait, + timeout: Duration, +) -> Result> { + let filter = Filter::new() + .kind(Kind::Custom(RELAY_LIST_METADATA_KIND)) + .author(*server_pubkey) + .limit(1); + + let mut events = relay_pool.fetch_events(vec![filter], timeout).await?; + + if events.is_empty() { + return Ok(vec![]); + } + + // Sort by created_at descending, take the latest + events.sort_by_key(|e| std::cmp::Reverse(e.created_at)); + let latest = &events[0]; + + // Extract relay entries from "r" tags. + // NOTE: Empty URLs are filtered here (diverges from TS SDK which keeps them); + // malformed empty-URL tags don't occur per NIP-65. + let entries: Vec = latest + .tags + .iter() + .filter_map(|tag| { + let parts = tag.clone().to_vec(); + if parts.first().map(|s| s.as_str()) != Some(tags::RELAY) { + return None; + } + let url = parts.get(1)?.clone(); + if url.is_empty() { + return None; + } + // NOTE: An empty-string marker becomes Some(""), not None. The TS SDK + // treats "" as unmarked (JS falsy). In practice NIP-65 tags never + // carry an empty marker, so this divergence is benign. + let marker = parts.get(2).cloned(); + Some(RelayListEntry { url, marker }) + }) + .collect(); + + Ok(entries) +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::relay::MockRelayPool; + + // ── select_operational_relay_urls tests ─────────────────────── + + #[test] + fn select_all_unmarked_returns_all_urls() { + let entries = vec![ + RelayListEntry { + url: "wss://relay1.example.com".to_string(), + marker: None, + }, + RelayListEntry { + url: "wss://relay2.example.com".to_string(), + marker: None, + }, + ]; + let result = select_operational_relay_urls(&entries); + assert_eq!(result.len(), 2); + assert!(result.contains(&"wss://relay1.example.com".to_string())); + assert!(result.contains(&"wss://relay2.example.com".to_string())); + } + + #[test] + fn select_mixed_markers_prefers_unmarked() { + let entries = vec![ + RelayListEntry { + url: "wss://unmarked.example.com".to_string(), + marker: None, + }, + RelayListEntry { + url: "wss://read.example.com".to_string(), + marker: Some("read".to_string()), + }, + RelayListEntry { + url: "wss://write.example.com".to_string(), + marker: Some("write".to_string()), + }, + ]; + let result = select_operational_relay_urls(&entries); + assert_eq!(result, vec!["wss://unmarked.example.com"]); + } + + #[test] + fn select_only_read_write_returns_union() { + let entries = vec![ + RelayListEntry { + url: "wss://read.example.com".to_string(), + marker: Some("read".to_string()), + }, + RelayListEntry { + url: "wss://write.example.com".to_string(), + marker: Some("write".to_string()), + }, + ]; + let result = select_operational_relay_urls(&entries); + assert_eq!(result.len(), 2); + assert!(result.contains(&"wss://read.example.com".to_string())); + assert!(result.contains(&"wss://write.example.com".to_string())); + } + + #[test] + fn select_empty_input_returns_empty() { + let result = select_operational_relay_urls(&[]); + assert!(result.is_empty()); + } + + #[test] + fn select_deduplicates_urls() { + let entries = vec![ + RelayListEntry { + url: "wss://relay.example.com".to_string(), + marker: None, + }, + RelayListEntry { + url: "wss://relay.example.com".to_string(), + marker: None, + }, + ]; + let result = select_operational_relay_urls(&entries); + assert_eq!(result, vec!["wss://relay.example.com"]); + } + + #[test] + fn select_filters_empty_strings() { + let entries = vec![ + RelayListEntry { + url: String::new(), + marker: None, + }, + RelayListEntry { + url: "wss://relay.example.com".to_string(), + marker: None, + }, + ]; + let result = select_operational_relay_urls(&entries); + assert_eq!(result, vec!["wss://relay.example.com"]); + } + + // ── fetch_server_relay_list tests ──────────────────────────── + + fn build_relay_list_event(keys: &Keys, tags: Vec, created_at: u64) -> Event { + let builder = EventBuilder::new(Kind::Custom(RELAY_LIST_METADATA_KIND), "") + .tags(tags) + .custom_created_at(Timestamp::from(created_at)); + builder.sign_with_keys(keys).unwrap() + } + + #[tokio::test] + async fn fetch_returns_parsed_entries_from_injected_event() { + let pool = MockRelayPool::new(); + let server_keys = Keys::generate(); + + let tags = vec![ + Tag::custom( + TagKind::Custom(tags::RELAY.into()), + vec!["wss://relay1.example.com"], + ), + Tag::custom( + TagKind::Custom(tags::RELAY.into()), + vec!["wss://relay2.example.com"], + ), + ]; + let event = build_relay_list_event(&server_keys, tags, 1000); + pool.inject_event(event).await; + + let entries = + fetch_relay_list_from_pool(&server_keys.public_key(), &pool, Duration::from_secs(5)) + .await + .unwrap(); + + assert_eq!(entries.len(), 2); + assert_eq!(entries[0].url, "wss://relay1.example.com"); + assert!(entries[0].marker.is_none()); + assert_eq!(entries[1].url, "wss://relay2.example.com"); + assert!(entries[1].marker.is_none()); + } + + #[tokio::test] + async fn fetch_no_events_returns_empty() { + let pool = MockRelayPool::new(); + let server_keys = Keys::generate(); + + let entries = + fetch_relay_list_from_pool(&server_keys.public_key(), &pool, Duration::from_secs(5)) + .await + .unwrap(); + + assert!(entries.is_empty()); + } + + #[tokio::test] + async fn fetch_multiple_events_returns_latest() { + let pool = MockRelayPool::new(); + let server_keys = Keys::generate(); + + // Older event + let old_tags = vec![Tag::custom( + TagKind::Custom(tags::RELAY.into()), + vec!["wss://old.example.com"], + )]; + let old_event = build_relay_list_event(&server_keys, old_tags, 1000); + pool.inject_event(old_event).await; + + // Newer event + let new_tags = vec![Tag::custom( + TagKind::Custom(tags::RELAY.into()), + vec!["wss://new.example.com"], + )]; + let new_event = build_relay_list_event(&server_keys, new_tags, 2000); + pool.inject_event(new_event).await; + + let entries = + fetch_relay_list_from_pool(&server_keys.public_key(), &pool, Duration::from_secs(5)) + .await + .unwrap(); + + assert_eq!(entries.len(), 1); + assert_eq!(entries[0].url, "wss://new.example.com"); + } + + #[tokio::test] + async fn fetch_extracts_marker_from_third_tag_element() { + let pool = MockRelayPool::new(); + let server_keys = Keys::generate(); + + let tags = vec![ + Tag::custom( + TagKind::Custom(tags::RELAY.into()), + vec!["wss://read.example.com", "read"], + ), + Tag::custom( + TagKind::Custom(tags::RELAY.into()), + vec!["wss://write.example.com", "write"], + ), + Tag::custom( + TagKind::Custom(tags::RELAY.into()), + vec!["wss://both.example.com"], + ), + ]; + let event = build_relay_list_event(&server_keys, tags, 1000); + pool.inject_event(event).await; + + let entries = + fetch_relay_list_from_pool(&server_keys.public_key(), &pool, Duration::from_secs(5)) + .await + .unwrap(); + + assert_eq!(entries.len(), 3); + assert_eq!( + entries[0], + RelayListEntry { + url: "wss://read.example.com".to_string(), + marker: Some("read".to_string()), + } + ); + assert_eq!( + entries[1], + RelayListEntry { + url: "wss://write.example.com".to_string(), + marker: Some("write".to_string()), + } + ); + assert_eq!( + entries[2], + RelayListEntry { + url: "wss://both.example.com".to_string(), + marker: None, + } + ); + } +} diff --git a/src/transport/server/announcement_manager.rs b/src/transport/server/announcement_manager.rs index cd8d755..40f075a 100644 --- a/src/transport/server/announcement_manager.rs +++ b/src/transport/server/announcement_manager.rs @@ -365,7 +365,7 @@ impl AnnouncementManager { let filter = Filter::new().kind(Kind::Custom(kind)).author(pubkey); let events = self .relay_pool - .fetch_events(filter, Duration::from_secs(10)) + .fetch_events(vec![filter], Duration::from_secs(10)) .await?; if events.is_empty() { continue; @@ -1699,7 +1699,7 @@ mod tests { ] { let filter = Filter::new().kind(Kind::Custom(kind)).author(pubkey); let events = pool - .fetch_events(filter, Duration::from_secs(1)) + .fetch_events(vec![filter], Duration::from_secs(1)) .await .unwrap(); assert_eq!(events.len(), 1, "kind {kind} should have exactly 1 event"); @@ -1803,8 +1803,12 @@ mod tests { } self.inner.publish_to(urls, builder).await } - async fn fetch_events(&self, filter: Filter, timeout: Duration) -> Result> { - self.inner.fetch_events(filter, timeout).await + async fn fetch_events( + &self, + filters: Vec, + timeout: Duration, + ) -> Result> { + self.inner.fetch_events(filters, timeout).await } } diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index 45df053..bb9309a 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -131,10 +131,10 @@ impl RelayPoolTrait for TestRelayPool { async fn fetch_events( &self, - filter: Filter, + filters: Vec, timeout: Duration, ) -> contextvm_sdk::Result> { - self.inner.fetch_events(filter, timeout).await + self.inner.fetch_events(filters, timeout).await } } From 444197c610d6193a493a279bac505a5f10fc45cc Mon Sep 17 00:00:00 2001 From: Harsh Date: Tue, 26 May 2026 08:27:30 +0530 Subject: [PATCH 090/116] feat: multi-stage relay resolution and transport integration (CEP-17) --- src/proxy/mod.rs | 2 + src/transport/client/mod.rs | 94 +++++- src/transport/client/relay_resolution.rs | 369 +++++++++++++++++++++++ tests/e2e_happy_path.rs | 9 +- tests/transport_integration.rs | 35 +++ 5 files changed, 492 insertions(+), 17 deletions(-) create mode 100644 src/transport/client/relay_resolution.rs diff --git a/src/proxy/mod.rs b/src/proxy/mod.rs index fce265f..532fdc8 100644 --- a/src/proxy/mod.rs +++ b/src/proxy/mod.rs @@ -122,6 +122,8 @@ mod tests { gift_wrap_mode: GiftWrapMode::Optional, is_stateless: true, timeout: Duration::from_secs(60), + discovery_relay_urls: None, + fallback_operational_relay_urls: None, }; let config = ProxyConfig { nostr_config }; diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index 044bc14..f6def7d 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -4,6 +4,7 @@ //! kind 25910 events, correlates responses via `e` tag. pub mod correlation_store; +pub mod relay_resolution; pub mod server_identity; pub mod server_relay_discovery; @@ -53,17 +54,24 @@ pub struct NostrClientTransportConfig { /// This prevents leaks -- rmcp owns actual request timeout and cancellation. /// Keep this value above your rmcp request timeout to avoid premature cleanup. pub timeout: Duration, + /// Relay URLs used for CEP-17 relay-list discovery when operational relays are not configured. + /// Overrides `DEFAULT_BOOTSTRAP_RELAY_URLS` when provided. + pub discovery_relay_urls: Option>, + /// Non-authoritative operational relays probed in parallel with CEP-17 discovery. + pub fallback_operational_relay_urls: Option>, } impl Default for NostrClientTransportConfig { fn default() -> Self { Self { - relay_urls: vec!["wss://relay.damus.io".to_string()], + relay_urls: vec![], server_pubkey: String::new(), encryption_mode: EncryptionMode::Optional, gift_wrap_mode: GiftWrapMode::Optional, is_stateless: false, timeout: Duration::from_secs(30), + discovery_relay_urls: None, + fallback_operational_relay_urls: None, } } } @@ -99,6 +107,16 @@ impl NostrClientTransportConfig { self.timeout = timeout; self } + /// Set relay URLs for CEP-17 relay-list discovery. + pub fn with_discovery_relay_urls(mut self, urls: Vec) -> Self { + self.discovery_relay_urls = Some(urls); + self + } + /// Set fallback operational relay URLs probed in parallel with discovery. + pub fn with_fallback_operational_relay_urls(mut self, urls: Vec) -> Self { + self.fallback_operational_relay_urls = Some(urls); + self + } } /// Client-side Nostr transport for sending MCP requests and receiving responses. @@ -107,8 +125,11 @@ pub struct NostrClientTransport { config: NostrClientTransportConfig, server_pubkey: PublicKey, /// Populated from nprofile relay hints; used by relay resolution in `start()` (CEP-17). - #[allow(dead_code)] hinted_relay_urls: Vec, + /// Discovery relay URLs for CEP-17 kind 10002 lookup. + discovery_relay_urls: Vec, + /// Fallback operational relay URLs probed in parallel with discovery. + fallback_operational_relay_urls: Vec, /// Pending request event IDs awaiting responses. pending_requests: ClientCorrelationStore, /// CEP-35: one-shot flag for client discovery tag emission. @@ -170,6 +191,17 @@ impl NostrClientTransport { encryption_mode = ?config.encryption_mode, "Created client transport" ); + let discovery_relay_urls = config.discovery_relay_urls.clone().unwrap_or_else(|| { + DEFAULT_BOOTSTRAP_RELAY_URLS + .iter() + .map(|s| s.to_string()) + .collect() + }); + let fallback_operational_relay_urls = config + .fallback_operational_relay_urls + .clone() + .unwrap_or_default(); + Ok(Self { base: BaseTransport { relay_pool, @@ -179,6 +211,8 @@ impl NostrClientTransport { config, server_pubkey, hinted_relay_urls, + discovery_relay_urls, + fallback_operational_relay_urls, pending_requests: ClientCorrelationStore::new(), has_sent_discovery_tags: AtomicBool::new(false), discovered_server_capabilities: Arc::new(Mutex::new(PeerCapabilities::default())), @@ -213,6 +247,17 @@ impl NostrClientTransport { NonZeroUsize::new(DEFAULT_LRU_SIZE).expect("DEFAULT_LRU_SIZE must be non-zero"), ))); + let discovery_relay_urls = config.discovery_relay_urls.clone().unwrap_or_else(|| { + DEFAULT_BOOTSTRAP_RELAY_URLS + .iter() + .map(|s| s.to_string()) + .collect() + }); + let fallback_operational_relay_urls = config + .fallback_operational_relay_urls + .clone() + .unwrap_or_default(); + tracing::info!( target: LOG_TARGET, relay_count = config.relay_urls.len(), @@ -229,6 +274,8 @@ impl NostrClientTransport { config, server_pubkey, hinted_relay_urls, + discovery_relay_urls, + fallback_operational_relay_urls, pending_requests: ClientCorrelationStore::new(), has_sent_discovery_tags: AtomicBool::new(false), discovered_server_capabilities: Arc::new(Mutex::new(PeerCapabilities::default())), @@ -244,17 +291,32 @@ impl NostrClientTransport { /// Connect and start listening for responses. pub async fn start(&mut self) -> Result<()> { - self.base - .connect(&self.config.relay_urls) - .await - .map_err(|error| { - tracing::error!( - target: LOG_TARGET, - error = %error, - "Failed to connect client transport to relays" - ); - error - })?; + let resolved_urls = + relay_resolution::resolve_operational_relays(relay_resolution::RelayResolutionConfig { + configured_relay_urls: self.config.relay_urls.clone(), + hinted_relay_urls: self.hinted_relay_urls.clone(), + discovery_relay_urls: self.discovery_relay_urls.clone(), + fallback_operational_relay_urls: self.fallback_operational_relay_urls.clone(), + server_pubkey: self.server_pubkey, + signer: self.base.relay_pool.signer().await?, + timeout: Duration::from_millis(DEFAULT_TIMEOUT_MS), + }) + .await; + + let connect_urls = if resolved_urls.is_empty() { + &self.config.relay_urls + } else { + &resolved_urls + }; + + self.base.connect(connect_urls).await.map_err(|error| { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to connect client transport to relays" + ); + error + })?; let pubkey = self.base.get_public_key().await.map_err(|error| { tracing::error!( @@ -863,12 +925,14 @@ mod tests { #[test] fn test_config_defaults() { let config = NostrClientTransportConfig::default(); - assert_eq!(config.relay_urls, vec!["wss://relay.damus.io".to_string()]); + assert!(config.relay_urls.is_empty()); assert!(config.server_pubkey.is_empty()); assert_eq!(config.encryption_mode, EncryptionMode::Optional); assert_eq!(config.gift_wrap_mode, GiftWrapMode::Optional); assert!(!config.is_stateless); assert_eq!(config.timeout, Duration::from_secs(30)); + assert!(config.discovery_relay_urls.is_none()); + assert!(config.fallback_operational_relay_urls.is_none()); } #[test] @@ -1105,6 +1169,8 @@ mod tests { }, server_pubkey: keys.public_key(), hinted_relay_urls: vec![], + discovery_relay_urls: vec![], + fallback_operational_relay_urls: vec![], pending_requests: ClientCorrelationStore::new(), has_sent_discovery_tags: AtomicBool::new(false), discovered_server_capabilities: Arc::new(Mutex::new(PeerCapabilities::default())), diff --git a/src/transport/client/relay_resolution.rs b/src/transport/client/relay_resolution.rs new file mode 100644 index 0000000..8857424 --- /dev/null +++ b/src/transport/client/relay_resolution.rs @@ -0,0 +1,369 @@ +//! CEP-17 multi-stage relay resolution. +//! +//! Resolves operational relays via: config → nprofile hints → kind 10002 +//! discovery → fallback probing → bootstrap defaults. +//! Mirrors the TS SDK's `resolveOperationalRelays()` and +//! `connectFallbackOperationalRelays()`. + +use std::sync::Arc; +use std::time::Duration; + +use nostr_sdk::prelude::*; +use tokio::pin; + +use crate::relay::RelayPool; +use crate::transport::client::server_relay_discovery::{ + fetch_server_relay_list, select_operational_relay_urls, +}; + +const LOG_TARGET: &str = "contextvm_sdk::transport::client::relay_resolution"; + +/// Inputs for multi-stage relay resolution. +pub struct RelayResolutionConfig { + /// Explicitly configured relay URLs (stage 1). + pub configured_relay_urls: Vec, + /// Relay hints from nprofile identity (stage 2). + pub hinted_relay_urls: Vec, + /// Bootstrap relays for CEP-17 kind 10002 discovery (stage 4). + pub discovery_relay_urls: Vec, + /// Fallback relays probed in parallel with discovery (stage 4). + pub fallback_operational_relay_urls: Vec, + /// Server public key for kind 10002 filter. + pub server_pubkey: PublicKey, + /// Signer for temporary relay pool connections. + pub signer: Arc, + /// Timeout for discovery and fallback probing. + pub timeout: Duration, +} + +/// Resolve operational relay URLs through a multi-stage pipeline. +/// +/// Stages (returns on first non-empty result): +/// 1. Configured relays (explicit `relay_urls`) +/// 2. Hinted relays (from nprofile) +/// 3. If no discovery relays available: use fallback or return empty +/// 4. Race CEP-17 discovery vs fallback probing (`tokio::select!`) +/// 5. Sequential fallback if race winner was empty +/// 6. Last resort: use discovery relay URLs as operational +/// +/// Mirrors the TS SDK `resolveOperationalRelays()`. +pub async fn resolve_operational_relays(config: RelayResolutionConfig) -> Vec { + // Stage 1: configured relays + if !config.configured_relay_urls.is_empty() { + return config.configured_relay_urls; + } + + // Stage 2: hinted relays (from nprofile) + if !config.hinted_relay_urls.is_empty() { + tracing::info!( + target: LOG_TARGET, + relay_count = config.hinted_relay_urls.len(), + "Using relay hints from server identity" + ); + return config.hinted_relay_urls; + } + + // Stage 3: no discovery relays available + if config.discovery_relay_urls.is_empty() { + if !config.fallback_operational_relay_urls.is_empty() { + tracing::info!( + target: LOG_TARGET, + relay_count = config.fallback_operational_relay_urls.len(), + "Using configured fallback operational relays" + ); + return config.fallback_operational_relay_urls; + } + return vec![]; + } + + // Stage 4: race discovery vs fallback + let discovery_urls = config.discovery_relay_urls; + let last_resort_urls = discovery_urls.clone(); + let fallback_urls = config.fallback_operational_relay_urls; + let server_pubkey = config.server_pubkey; + let signer = config.signer; + let timeout = config.timeout; + + let discovery_fut = async { + let entries = + fetch_server_relay_list(&server_pubkey, &discovery_urls, signer.clone(), timeout) + .await + .unwrap_or_default(); + select_operational_relay_urls(&entries) + }; + + let fallback_fut = connect_fallback_operational_relays(&fallback_urls, signer.clone(), timeout); + + pin!(discovery_fut); + pin!(fallback_fut); + + // Race: first non-empty wins. If winner is empty, await the loser. + enum RaceWinner { + Discovery(Vec), + Fallback(Vec), + } + + // When the winner is non-empty the losing future is dropped. + // If it was connect_fallback_operational_relays, the temporary + // pool disconnects when the Client drops -- resource leak is minimal. + let winner = tokio::select! { + result = &mut discovery_fut => RaceWinner::Discovery(result), + result = &mut fallback_fut => RaceWinner::Fallback(result), + }; + + match winner { + RaceWinner::Discovery(urls) if !urls.is_empty() => { + tracing::info!(target: LOG_TARGET, relay_count = urls.len(), "Resolved operational relays"); + return urls; + } + RaceWinner::Fallback(urls) if !urls.is_empty() => { + tracing::info!(target: LOG_TARGET, relay_count = urls.len(), "Resolved operational relays"); + return urls; + } + RaceWinner::Discovery(_) => { + // Discovery returned empty; await fallback + let fallback_result = fallback_fut.await; + if !fallback_result.is_empty() { + tracing::info!(target: LOG_TARGET, relay_count = fallback_result.len(), "Using configured fallback operational relays"); + return fallback_result; + } + } + RaceWinner::Fallback(_) => { + // Fallback returned empty; await discovery + let discovery_result = discovery_fut.await; + if !discovery_result.is_empty() { + tracing::info!(target: LOG_TARGET, relay_count = discovery_result.len(), "Resolved operational relays from server relay list"); + return discovery_result; + } + } + } + + // Stage 6: last resort — use discovery relays as operational + tracing::warn!( + target: LOG_TARGET, + relay_count = last_resort_urls.len(), + "No operational relays discovered from kind 10002; falling back to discovery relays" + ); + last_resort_urls +} + +/// Probe fallback operational relays for connectivity. +/// +/// Creates a temporary pool, attempts to connect within `timeout`. +/// Returns the fallback URLs on success, empty vec on failure. +/// Mirrors the TS SDK `connectFallbackOperationalRelays()`. +pub async fn connect_fallback_operational_relays( + fallback_urls: &[String], + signer: Arc, + timeout: Duration, +) -> Vec { + if fallback_urls.is_empty() { + return vec![]; + } + + let pool = match RelayPool::new(signer).await { + Ok(p) => p, + Err(_) => return vec![], + }; + + let connect_result = tokio::time::timeout(timeout, pool.connect(fallback_urls)).await; + + let _ = pool.disconnect().await; + + match connect_result { + Ok(Ok(())) => fallback_urls.to_vec(), + Ok(Err(e)) => { + tracing::warn!( + target: LOG_TARGET, + error = %e, + "Fallback operational relay connection failed" + ); + vec![] + } + Err(_) => { + tracing::warn!( + target: LOG_TARGET, + "Fallback operational relay probing timed out" + ); + vec![] + } + } +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::relay::MockRelayPool; + + fn make_signer() -> Arc { + let keys = Keys::generate(); + Arc::new(keys) as Arc + } + + fn make_config( + configured: Vec, + hinted: Vec, + discovery: Vec, + fallback: Vec, + ) -> RelayResolutionConfig { + RelayResolutionConfig { + configured_relay_urls: configured, + hinted_relay_urls: hinted, + discovery_relay_urls: discovery, + fallback_operational_relay_urls: fallback, + server_pubkey: Keys::generate().public_key(), + signer: make_signer(), + timeout: Duration::from_secs(5), + } + } + + #[tokio::test] + async fn configured_relays_returned_immediately() { + let config = make_config( + vec!["wss://configured.example.com".to_string()], + vec!["wss://hinted.example.com".to_string()], + vec!["wss://discovery.example.com".to_string()], + vec!["wss://fallback.example.com".to_string()], + ); + let result = resolve_operational_relays(config).await; + assert_eq!(result, vec!["wss://configured.example.com"]); + } + + #[tokio::test] + async fn hinted_relays_returned_when_no_configured() { + let config = make_config( + vec![], + vec!["wss://hint1.example.com".to_string()], + vec!["wss://discovery.example.com".to_string()], + vec![], + ); + let result = resolve_operational_relays(config).await; + assert_eq!(result, vec!["wss://hint1.example.com"]); + } + + #[tokio::test] + async fn no_discovery_with_fallback_returns_fallback() { + let config = make_config( + vec![], + vec![], + vec![], + vec!["wss://fallback.example.com".to_string()], + ); + let result = resolve_operational_relays(config).await; + assert_eq!(result, vec!["wss://fallback.example.com"]); + } + + #[tokio::test] + async fn no_discovery_no_fallback_returns_empty() { + let config = make_config(vec![], vec![], vec![], vec![]); + let result = resolve_operational_relays(config).await; + assert!(result.is_empty()); + } + + #[tokio::test] + async fn both_empty_falls_back_to_discovery_relays() { + // discovery_relay_urls are non-empty but the server has no kind 10002 event, + // and fallback is empty — last resort returns discovery URLs. + let config = make_config( + vec![], + vec![], + vec!["wss://bootstrap.example.com".to_string()], + vec![], + ); + let result = resolve_operational_relays(config).await; + assert_eq!(result, vec!["wss://bootstrap.example.com"]); + } + + #[tokio::test] + async fn connect_fallback_empty_urls_returns_empty() { + let result = + connect_fallback_operational_relays(&[], make_signer(), Duration::from_secs(1)).await; + assert!(result.is_empty()); + } + + #[tokio::test] + async fn discovery_with_mock_returns_relay_entries() { + // Test the fetch path via fetch_relay_list_from_pool directly + use crate::core::constants::{tags, RELAY_LIST_METADATA_KIND}; + use crate::transport::client::server_relay_discovery::fetch_relay_list_from_pool; + + let pool = MockRelayPool::new(); + let server_keys = Keys::generate(); + + let tags = vec![Tag::custom( + TagKind::Custom(tags::RELAY.into()), + vec!["wss://discovered.example.com"], + )]; + let event = EventBuilder::new(Kind::Custom(RELAY_LIST_METADATA_KIND), "") + .tags(tags) + .custom_created_at(Timestamp::from(1000u64)) + .sign_with_keys(&server_keys) + .unwrap(); + pool.inject_event(event).await; + + let entries = + fetch_relay_list_from_pool(&server_keys.public_key(), &pool, Duration::from_secs(5)) + .await + .unwrap(); + let urls = select_operational_relay_urls(&entries); + assert_eq!(urls, vec!["wss://discovered.example.com"]); + } + + #[tokio::test] + async fn marker_precedence_unmarked_preferred() { + use crate::core::constants::{tags, RELAY_LIST_METADATA_KIND}; + use crate::transport::client::server_relay_discovery::fetch_relay_list_from_pool; + + let pool = MockRelayPool::new(); + let server_keys = Keys::generate(); + + let tags = vec![ + Tag::custom( + TagKind::Custom(tags::RELAY.into()), + vec!["wss://unmarked.example.com"], + ), + Tag::custom( + TagKind::Custom(tags::RELAY.into()), + vec!["wss://read.example.com", "read"], + ), + ]; + let event = EventBuilder::new(Kind::Custom(RELAY_LIST_METADATA_KIND), "") + .tags(tags) + .custom_created_at(Timestamp::from(1000u64)) + .sign_with_keys(&server_keys) + .unwrap(); + pool.inject_event(event).await; + + let entries = + fetch_relay_list_from_pool(&server_keys.public_key(), &pool, Duration::from_secs(5)) + .await + .unwrap(); + let urls = select_operational_relay_urls(&entries); + assert_eq!(urls, vec!["wss://unmarked.example.com"]); + } + + #[test] + fn with_discovery_relay_urls_overrides_bootstrap() { + use crate::transport::client::NostrClientTransportConfig; + + let config = NostrClientTransportConfig::default() + .with_discovery_relay_urls(vec!["wss://custom-discovery.example.com".to_string()]); + assert_eq!( + config.discovery_relay_urls, + Some(vec!["wss://custom-discovery.example.com".to_string()]) + ); + } + + #[test] + fn with_fallback_operational_relay_urls_stored_separately() { + use crate::transport::client::NostrClientTransportConfig; + + let config = NostrClientTransportConfig::default() + .with_fallback_operational_relay_urls(vec!["wss://fallback.example.com".to_string()]); + assert_eq!( + config.fallback_operational_relay_urls, + Some(vec!["wss://fallback.example.com".to_string()]) + ); + assert!(config.relay_urls.is_empty()); + } +} diff --git a/tests/e2e_happy_path.rs b/tests/e2e_happy_path.rs index 61f0c2a..edec5d6 100644 --- a/tests/e2e_happy_path.rs +++ b/tests/e2e_happy_path.rs @@ -184,7 +184,8 @@ async fn run_e2e_scenario(mode: EncryptionMode) { let client_transport = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() .with_server_pubkey(server_pubkey_hex) - .with_encryption_mode(mode), + .with_encryption_mode(mode) + .with_relay_urls(vec!["wss://mock.relay".to_string()]), as_pool(client_pool), ) .await @@ -381,7 +382,8 @@ async fn e2e_multi_client_no_crosstalk() { let client1_transport = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() .with_server_pubkey(server_pubkey_hex.clone()) - .with_encryption_mode(EncryptionMode::Optional), + .with_encryption_mode(EncryptionMode::Optional) + .with_relay_urls(vec!["wss://mock.relay".to_string()]), as_pool(client1_pool), ) .await @@ -390,7 +392,8 @@ async fn e2e_multi_client_no_crosstalk() { let client2_transport = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() .with_server_pubkey(server_pubkey_hex) - .with_encryption_mode(EncryptionMode::Optional), + .with_encryption_mode(EncryptionMode::Optional) + .with_relay_urls(vec!["wss://mock.relay".to_string()]), as_pool(client2_pool), ) .await diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index bb9309a..101effc 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -160,6 +160,7 @@ async fn full_initialization_handshake() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -293,6 +294,7 @@ async fn encryption_mode_optional_accepts_plaintext() { // Client uses Disabled — sends plaintext kind 25910. let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -353,6 +355,7 @@ async fn auth_allowlist_blocks_disallowed_pubkey() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -403,6 +406,7 @@ async fn encryption_mode_required_drops_plaintext() { // Client sends plaintext (Disabled mode). let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -446,6 +450,7 @@ async fn encrypted_gift_wrap_roundtrip() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Required), as_pool(client_pool), @@ -529,6 +534,7 @@ async fn gift_wrap_dedup_skips_duplicate_delivery() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Required), as_pool(client_pool), @@ -598,6 +604,7 @@ async fn correlated_notification_has_e_tag() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -692,6 +699,7 @@ async fn encryption_required_client_optional_server() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Required), as_pool(client_pool), @@ -749,6 +757,7 @@ async fn encryption_optional_both_sides_encrypted_path() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Optional), as_pool(client_pool), @@ -952,6 +961,7 @@ async fn broadcast_notification_reaches_initialized_client() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pk.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(c1_pool), @@ -1064,6 +1074,7 @@ async fn uncorrelated_notification_passes_through() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -1157,6 +1168,7 @@ async fn correlated_notification_unknown_e_tag_is_dropped() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -1254,6 +1266,7 @@ async fn auth_allowed_pubkey_receives_response() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -1333,6 +1346,7 @@ async fn excluded_capability_bypasses_auth() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -1602,6 +1616,7 @@ async fn encryption_disabled_server_rejects_gift_wrap() { // Client requires encryption — sends gift-wrap (kind 1059). let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Required), as_pool(client_pool), @@ -1824,6 +1839,7 @@ async fn send_response_is_one_shot_under_concurrency() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -1921,6 +1937,7 @@ async fn send_response_publish_failure_allows_one_successful_retry() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -2046,6 +2063,7 @@ async fn announced_server_sends_unauthorized_error_response() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -2121,6 +2139,7 @@ async fn private_server_silently_drops_unauthorized_request() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -2182,6 +2201,7 @@ async fn announced_server_does_not_error_on_unauthorized_notification() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -2239,6 +2259,7 @@ async fn first_response_includes_discovery_tags() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -2361,6 +2382,7 @@ async fn notification_mirror_selection_wrt_cep_19() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Optional) .with_gift_wrap_mode(GiftWrapMode::Ephemeral), @@ -2446,6 +2468,7 @@ async fn server_response_includes_encryption_tags_when_enabled() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -2520,6 +2543,7 @@ async fn server_response_excludes_ephemeral_tag_when_persistent() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -2591,6 +2615,7 @@ async fn server_learns_capabilities_from_client_request() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -2653,6 +2678,7 @@ async fn server_disabled_encryption_omits_encryption_tags() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -2722,6 +2748,7 @@ async fn client_disabled_encryption_emits_no_discovery_tags() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_keys.public_key().to_hex()) .with_encryption_mode(EncryptionMode::Disabled) .with_gift_wrap_mode(GiftWrapMode::Optional), @@ -2769,6 +2796,7 @@ async fn client_second_request_carries_no_discovery_tags() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_keys.public_key().to_hex()) .with_encryption_mode(EncryptionMode::Disabled) .with_gift_wrap_mode(GiftWrapMode::Optional), @@ -2837,6 +2865,7 @@ async fn client_learns_server_capabilities_from_first_response() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -2922,6 +2951,7 @@ async fn client_or_assigns_capabilities_across_responses() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), Arc::clone(&client_pool) as Arc, @@ -3034,6 +3064,7 @@ async fn client_baseline_event_not_replaced_by_later_responses() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), Arc::clone(&client_pool) as Arc, @@ -3127,6 +3158,7 @@ async fn client_optional_encryption_emits_discovery_tags() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Optional) .with_gift_wrap_mode(GiftWrapMode::Optional), @@ -3197,6 +3229,7 @@ async fn multi_client_concurrent_requests_both_get_responses() { let mut client_a = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_a_pool), @@ -3206,6 +3239,7 @@ async fn multi_client_concurrent_requests_both_get_responses() { let mut client_b = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_b_pool), @@ -3354,6 +3388,7 @@ async fn client_close_stops_event_loop() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), From 16462b7779e002b4583e133d03a2cba9164e0643 Mon Sep 17 00:00:00 2001 From: Harsh Date: Tue, 26 May 2026 15:18:11 +0530 Subject: [PATCH 091/116] docs: update doc --- README.md | 26 +++++++++++++------ docs/client-transport.md | 7 +++-- docs/discovery.md | 20 ++++++++++++++ docs/gateway.md | 6 ++++- docs/server-transport.md | 5 ++++ .../client/server_relay_discovery.rs | 3 +-- 6 files changed, 54 insertions(+), 13 deletions(-) diff --git a/README.md b/README.md index 3b58e96..aae7a56 100644 --- a/README.md +++ b/README.md @@ -39,6 +39,8 @@ ContextVM maps MCP's JSON-RPC 2.0 messages onto Nostr events: |---------|------------------------|-------------|--------------------------------------| | `25910` | ContextVM Messages | Ephemeral | MCP request/response/notification | | `1059` | Gift Wrap (NIP-59) | Regular | Encrypted MCP messages | +| `21059` | Ephemeral Gift Wrap | Ephemeral | Encrypted MCP messages (CEP-19) | +| `10002` | Relay List Metadata | Replaceable | Server's advertised relays (CEP-17) | | `11316` | Server Announcement | Addressable | Server identity & metadata | | `11317` | Tools List | Addressable | Published tool capabilities | | `11318` | Resources List | Addressable | Published resource capabilities | @@ -211,20 +213,28 @@ metadata-private delivery. Server announcements (kinds 11316–11320) are always | `relay_urls` | `["wss://relay.damus.io"]` | Nostr relays to connect to | | `encryption_mode` | `Optional` | Encryption policy | | `server_info` | `None` | Server metadata for announcements | -| `is_announced_server` | `false` | Whether to publish announcements (CEP-6) | +| `is_announced_server` | `false` | Auto-publish announcements on start (CEP-6) | | `allowed_public_keys` | `[]` (allow all) | Client pubkey allowlist (hex) | | `excluded_capabilities` | `[]` | Methods exempt from allowlist | | `session_timeout` | `300s` | Inactive session expiry | +| `relay_list_urls` | `None` | Relay URLs for kind 10002 (CEP-17); defaults to `relay_urls` | +| `bootstrap_relay_urls` | `None` | Additional relays for publishing announcements (CEP-6/17) | +| `publish_relay_list` | `true` | Whether to publish kind 10002 relay list metadata | +| `profile_metadata` | `None` | Profile metadata for kind 0 publication (CEP-23) | ### Client Transport Config -| Field | Default | Description | -|-------------------|----------------------------|--------------------------------------| -| `relay_urls` | `["wss://relay.damus.io"]` | Nostr relays to connect to | -| `server_pubkey` | (required) | Target server's public key (hex) | -| `encryption_mode` | `Optional` | Encryption policy | -| `is_stateless` | `false` | Emulate initialize locally | -| `timeout` | `30s` | Response timeout | +| Field | Default | Description | +|------------------------------------|----------------------------|--------------------------------------| +| `relay_urls` | `[]` | Nostr relays to connect to (empty = use relay resolution) | +| `server_pubkey` | (required) | Target server's public key (hex, npub, or nprofile) | +| `encryption_mode` | `Optional` | Encryption policy | +| `is_stateless` | `false` | Emulate initialize locally | +| `timeout` | `30s` | Response timeout | +| `discovery_relay_urls` | `None` (bootstrap relays) | Relays for CEP-17 kind 10002 discovery | +| `fallback_operational_relay_urls` | `None` | Relays probed in parallel with CEP-17 discovery | + +When `relay_urls` is empty, `start()` runs automatic relay resolution: configured relays > nprofile hints > CEP-17 kind 10002 discovery > fallback probing > bootstrap defaults. ## References diff --git a/docs/client-transport.md b/docs/client-transport.md index cc4de18..4fa01bd 100644 --- a/docs/client-transport.md +++ b/docs/client-transport.md @@ -147,12 +147,14 @@ This is the ContextVM equivalent of the usual `rmcp` client workflow, but using Start with these fields in `NostrClientTransportConfig`: -- `relay_urls`: relays the client uses to reach the server -- `server_pubkey`: the target server public key +- `relay_urls`: relays the client uses to reach the server (empty = use relay resolution) +- `server_pubkey`: the target server's public key (hex, npub, or nprofile with relay hints) - `encryption_mode`: whether plaintext is allowed - `gift_wrap_mode`: whether to use persistent or ephemeral wrapping - `is_stateless`: whether initialize is emulated locally for stateless workflows - `timeout`: how long request correlation waits for a response +- `discovery_relay_urls`: bootstrap relays for CEP-17 kind 10002 relay-list discovery (defaults to `DEFAULT_BOOTSTRAP_RELAY_URLS`) +- `fallback_operational_relay_urls`: non-authoritative relays probed in parallel with CEP-17 discovery ## When to use this instead of the proxy @@ -166,3 +168,4 @@ Use the proxy guide when you want a simpler message-oriented bridge and do not w - The initialize request is sent automatically as part of the running client startup sequence. - Stateless initialization behavior is covered by the conformance tests. - Capability learning and gift-wrap handling happen inside the client transport implementation. +- When `relay_urls` is empty, `start()` runs 6-stage relay resolution before connecting: configured relays > nprofile hints > CEP-17 kind 10002 discovery > fallback probing > bootstrap defaults. Callers can set `server_pubkey` to an nprofile and omit `relay_urls` entirely. diff --git a/docs/discovery.md b/docs/discovery.md index b4d74fb..a6887f8 100644 --- a/docs/discovery.md +++ b/docs/discovery.md @@ -59,6 +59,26 @@ The event kinds follow the public announcement model summarized in the repositor These event kinds are the SDK's public discovery model for server metadata and advertised MCP capabilities. +## CEP-17 automatic relay resolution + +Clients can discover which relays a server uses without hardcoding relay URLs. Set `server_pubkey` to an nprofile (which embeds relay hints) and leave `relay_urls` empty: + +```rust +NostrClientTransportConfig::default() + .with_server_pubkey("nprofile1...") // contains pubkey + relay hints +``` + +When `start()` is called with empty `relay_urls`, the transport runs a 6-stage resolution pipeline: + +1. **Configured relays** -- if `relay_urls` is non-empty, use them directly +2. **nprofile hints** -- relay URLs embedded in the nprofile identity +3. **CEP-17 discovery** -- fetch kind 10002 relay-list events from bootstrap relays +4. **Fallback probing** -- probe `fallback_operational_relay_urls` in parallel with discovery +5. **Sequential fallback** -- if the race winner returned empty, await the other +6. **Bootstrap default** -- fall back to `DEFAULT_BOOTSTRAP_RELAY_URLS` as last resort + +The `discovery_relay_urls` and `fallback_operational_relay_urls` config fields customize stages 3-4. + ## Important limitations - discovery is public metadata, not a replacement for direct transport negotiation diff --git a/docs/gateway.md b/docs/gateway.md index ac23631..73cf2dc 100644 --- a/docs/gateway.md +++ b/docs/gateway.md @@ -109,10 +109,14 @@ The main operational knobs live on `NostrServerTransportConfig`: - `encryption_mode`: plaintext vs encrypted session policy - `gift_wrap_mode`: choose between persistent and ephemeral gift wraps - `server_info`: metadata used in public announcements -- `is_announced_server`: publish public discovery events +- `is_announced_server`: auto-publish announcements on start (CEP-6) - `allowed_public_keys`: static client allowlist - `excluded_capabilities`: allow public access to specific methods or capability names - `max_sessions`, `cleanup_interval`, `session_timeout`: server-side session lifecycle +- `relay_list_urls`: relay URLs advertised in kind 10002 (CEP-17); defaults to `relay_urls` +- `bootstrap_relay_urls`: additional relays for publishing announcements (CEP-6/17) +- `publish_relay_list`: whether to publish kind 10002 relay list metadata; default `true` +- `profile_metadata`: optional profile metadata for kind 0 publication (CEP-23) ## Behavioral notes diff --git a/docs/server-transport.md b/docs/server-transport.md index 6ece1b2..147ae52 100644 --- a/docs/server-transport.md +++ b/docs/server-transport.md @@ -158,6 +158,10 @@ Start with these fields in `NostrServerTransportConfig`: - `gift_wrap_mode`: persistent vs ephemeral wrapping policy - `allowed_public_keys`: allowlist for private or restricted servers - `excluded_capabilities`: allow specific methods without fully opening the server +- `relay_list_urls`: relay URLs advertised in kind 10002 (CEP-17); defaults to `relay_urls` +- `bootstrap_relay_urls`: additional relays for publishing announcements (CEP-6/17); merged with `relay_list_urls` +- `publish_relay_list`: whether to publish kind 10002 relay list metadata; default `true` +- `profile_metadata`: optional profile metadata for kind 0 publication (CEP-23) ## When to use this instead of the gateway @@ -171,3 +175,4 @@ Use the gateway guide when you already have a request loop or existing local MCP - `rmcp` accepts pre-init ping and enters the main loop immediately after initialization completes. - ContextVM response routing depends on request event ids. - Encryption mirroring and announcement behavior are covered by the integration tests. +- When `is_announced_server` is `true`, the transport auto-publishes all announcement events on `start()` via synthetic MCP requests: kind 11316 (server announcement), kinds 11317-11320 (tools, resources, templates, prompts), kind 10002 (relay list), and kind 0 (profile metadata if configured). diff --git a/src/transport/client/server_relay_discovery.rs b/src/transport/client/server_relay_discovery.rs index 42812c0..14ebd32 100644 --- a/src/transport/client/server_relay_discovery.rs +++ b/src/transport/client/server_relay_discovery.rs @@ -94,8 +94,7 @@ pub(crate) async fn fetch_relay_list_from_pool( ) -> Result> { let filter = Filter::new() .kind(Kind::Custom(RELAY_LIST_METADATA_KIND)) - .author(*server_pubkey) - .limit(1); + .author(*server_pubkey); let mut events = relay_pool.fetch_events(vec![filter], timeout).await?; From 337ac313ead15a0147839009ce35c7073f51561f Mon Sep 17 00:00:00 2001 From: Harsh Date: Thu, 28 May 2026 17:54:01 +0530 Subject: [PATCH 092/116] =?UTF-8?q?chore:=20upgrade=20rmcp=200.16.0=20?= =?UTF-8?q?=E2=86=92=201.7.0=20and=20switch=20to=20ContextVM-org=20fork?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- Cargo.toml | 2 +- examples/native_echo_client.rs | 17 +++++----- examples/native_echo_server.rs | 20 +++++------- examples/rmcp_integration_test.rs | 41 ++++++++++-------------- src/rmcp_transport/pipeline_tests.rs | 39 ++++++++++------------- tests/e2e_happy_path.rs | 38 ++++++++-------------- tests/integration.rs | 47 ++++++++++------------------ 7 files changed, 78 insertions(+), 126 deletions(-) diff --git a/Cargo.toml b/Cargo.toml index e0a28b4..c90b711 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -31,7 +31,7 @@ nostr-sdk = { version = "0.43", features = ["nip59"] } tracing = "0.1" # Optional MCP integration (Rust equivalent to TS @modelcontextprotocol/sdk) -rmcp = { version = "0.16.0", features = ["server", "client", "macros", "transport-worker"], optional = true } +rmcp = { git = "https://github.com/ContextVM-org/rust-sdk", branch = "progress-aware-request-timeouts", features = ["server", "client", "macros", "transport-worker"], optional = true } # LRU cache for gift-wrap (outer event id) deduplication lru = "0.12" diff --git a/examples/native_echo_client.rs b/examples/native_echo_client.rs index be5e0dd..1068a40 100644 --- a/examples/native_echo_client.rs +++ b/examples/native_echo_client.rs @@ -62,15 +62,14 @@ async fn main() -> Result<()> { } let result = client - .call_tool(CallToolRequestParams { - name: "echo".into(), - arguments: serde_json::from_value(serde_json::json!({ - "message": "hello from native contextvm client" - })) - .ok(), - meta: None, - task: None, - }) + .call_tool( + CallToolRequestParams::new("echo").with_arguments( + serde_json::from_value(serde_json::json!({ + "message": "hello from native contextvm client" + })) + .unwrap(), + ), + ) .await?; println!("Echo result: {}", first_text(&result)); diff --git a/examples/native_echo_server.rs b/examples/native_echo_server.rs index e463e62..aedbcb5 100644 --- a/examples/native_echo_server.rs +++ b/examples/native_echo_server.rs @@ -48,19 +48,13 @@ impl EchoServer { #[tool_handler] impl ServerHandler for EchoServer { fn get_info(&self) -> rmcp::model::ServerInfo { - rmcp::model::ServerInfo { - protocol_version: ProtocolVersion::LATEST, - capabilities: ServerCapabilities::builder().enable_tools().build(), - server_info: Implementation { - name: "contextvm-native-echo".to_string(), - title: Some("ContextVM Native Echo Server".to_string()), - version: "0.1.0".to_string(), - description: Some("Native rmcp echo server over ContextVM/Nostr".to_string()), - icons: None, - website_url: None, - }, - instructions: Some("Call the echo tool with a message string".to_string()), - } + rmcp::model::ServerInfo::new(ServerCapabilities::builder().enable_tools().build()) + .with_server_info( + Implementation::new("contextvm-native-echo", "0.1.0") + .with_title("ContextVM Native Echo Server") + .with_description("Native rmcp echo server over ContextVM/Nostr"), + ) + .with_instructions("Call the echo tool with a message string") } } diff --git a/examples/rmcp_integration_test.rs b/examples/rmcp_integration_test.rs index 9d82519..4aed4b4 100644 --- a/examples/rmcp_integration_test.rs +++ b/examples/rmcp_integration_test.rs @@ -139,22 +139,18 @@ impl DemoServer { #[tool_handler] impl ServerHandler for DemoServer { fn get_info(&self) -> ServerInfo { - ServerInfo { - protocol_version: ProtocolVersion::LATEST, - capabilities: ServerCapabilities::builder() + ServerInfo::new( + ServerCapabilities::builder() .enable_tools() .enable_resources() .build(), - server_info: Implementation { - name: "contextvm-demo".to_string(), - title: Some("ContextVM Demo Server".to_string()), - version: "0.1.0".to_string(), - description: Some("Demonstrates rmcp integration over ContextVM".to_string()), - icons: None, - website_url: None, - }, - instructions: Some("Try: echo, add, get_echo_count".to_string()), - } + ) + .with_server_info( + Implementation::new("contextvm-demo", "0.1.0") + .with_title("ContextVM Demo Server") + .with_description("Demonstrates rmcp integration over ContextVM"), + ) + .with_instructions("Try: echo, add, get_echo_count") } async fn list_resources( @@ -177,12 +173,10 @@ impl ServerHandler for DemoServer { _ctx: RequestContext, ) -> Result { match req.uri.as_str() { - "demo://readme" => Ok(ReadResourceResult { - contents: vec![ResourceContents::text( - "This server demonstrates the ContextVM rmcp integration.", - req.uri, - )], - }), + "demo://readme" => Ok(ReadResourceResult::new(vec![ResourceContents::text( + "This server demonstrates the ContextVM rmcp integration.", + req.uri, + )])), other => Err(ErrorData::resource_not_found( "not_found", Some(serde_json::json!({ "uri": other })), @@ -696,12 +690,11 @@ fn assert_error_response(response: &JsonRpcMessage) -> Result<()> { } fn call_params(name: &'static str, args: Option) -> CallToolRequestParams { - CallToolRequestParams { - name: name.into(), - arguments: args.and_then(|v| serde_json::from_value(v).ok()), - meta: None, - task: None, + let mut params = CallToolRequestParams::new(name); + if let Some(v) = args.and_then(|v| serde_json::from_value(v).ok()) { + params = params.with_arguments(v); } + params } fn first_text(result: &CallToolResult) -> String { diff --git a/src/rmcp_transport/pipeline_tests.rs b/src/rmcp_transport/pipeline_tests.rs index ff4844e..209c774 100644 --- a/src/rmcp_transport/pipeline_tests.rs +++ b/src/rmcp_transport/pipeline_tests.rs @@ -76,19 +76,13 @@ mod tests { #[tool_handler] impl ServerHandler for StatelessTestServer { fn get_info(&self) -> ServerInfo { - ServerInfo { - protocol_version: ProtocolVersion::LATEST, - capabilities: ServerCapabilities::builder().enable_tools().build(), - server_info: Implementation { - name: "stateless-test-server".to_string(), - title: Some("Stateless Test Server".to_string()), - version: "0.1.0".to_string(), - description: Some("Stateless rmcp regression test server".to_string()), - icons: None, - website_url: None, - }, - instructions: Some("Use the echo tool".to_string()), - } + ServerInfo::new(ServerCapabilities::builder().enable_tools().build()) + .with_server_info( + Implementation::new("stateless-test-server", "0.1.0") + .with_title("Stateless Test Server") + .with_description("Stateless rmcp regression test server"), + ) + .with_instructions("Use the echo tool") } } @@ -381,7 +375,7 @@ mod tests { message: "Method not found".into(), data: None, }, - RequestId::String(std::sync::Arc::from(event_id)), + Some(RequestId::String(std::sync::Arc::from(event_id))), ); let internal = rmcp_server_tx_to_internal(rmcp_err).unwrap(); @@ -454,15 +448,14 @@ mod tests { ); let result = client - .call_tool(CallToolRequestParams { - name: "echo".into(), - arguments: serde_json::from_value(serde_json::json!({ - "message": "hello from stateless test" - })) - .ok(), - meta: None, - task: None, - }) + .call_tool( + CallToolRequestParams::new("echo").with_arguments( + serde_json::from_value(serde_json::json!({ + "message": "hello from stateless test" + })) + .unwrap(), + ), + ) .await .expect("tools/call should succeed"); diff --git a/tests/e2e_happy_path.rs b/tests/e2e_happy_path.rs index edec5d6..505470e 100644 --- a/tests/e2e_happy_path.rs +++ b/tests/e2e_happy_path.rs @@ -87,22 +87,13 @@ impl DemoServer { #[tool_handler] impl ServerHandler for DemoServer { fn get_info(&self) -> ServerInfo { - ServerInfo { - protocol_version: ProtocolVersion::LATEST, - capabilities: ServerCapabilities::builder() + ServerInfo::new( + ServerCapabilities::builder() .enable_tools() .enable_resources() .build(), - server_info: Implementation { - name: "e2e-test-server".to_string(), - title: None, - version: "0.1.0".to_string(), - description: None, - icons: None, - website_url: None, - }, - instructions: None, - } + ) + .with_server_info(Implementation::new("e2e-test-server", "0.1.0")) } async fn list_resources( @@ -125,9 +116,10 @@ impl ServerHandler for DemoServer { _ctx: RequestContext, ) -> Result { match req.uri.as_str() { - "demo://readme" => Ok(ReadResourceResult { - contents: vec![ResourceContents::text("Demo content.", req.uri)], - }), + "demo://readme" => Ok(ReadResourceResult::new(vec![ResourceContents::text( + "Demo content.", + req.uri, + )])), other => Err(ErrorData::resource_not_found( "not_found", Some(serde_json::json!({ "uri": other })), @@ -158,12 +150,11 @@ fn first_text(result: &CallToolResult) -> String { } fn call_params(name: &'static str, args: Option) -> CallToolRequestParams { - CallToolRequestParams { - name: name.into(), - arguments: args.and_then(|v| serde_json::from_value(v).ok()), - meta: None, - task: None, + let mut params = CallToolRequestParams::new(name); + if let Some(v) = args.and_then(|v| serde_json::from_value(v).ok()) { + params = params.with_arguments(v); } + params } // ── Core scenario runner ────────────────────────────────────────────────── @@ -300,10 +291,7 @@ async fn run_e2e_scenario(mode: EncryptionMode) { assert_eq!(resources[0].name.as_str(), "Demo README"); let read_result = client - .read_resource(ReadResourceRequestParams { - uri: "demo://readme".to_string(), - meta: None, - }) + .read_resource(ReadResourceRequestParams::new("demo://readme")) .await .expect("read_resource"); assert_eq!(read_result.contents.len(), 1); diff --git a/tests/integration.rs b/tests/integration.rs index 339f2a0..3cf3293 100644 --- a/tests/integration.rs +++ b/tests/integration.rs @@ -77,22 +77,13 @@ impl DemoServer { #[tool_handler] impl ServerHandler for DemoServer { fn get_info(&self) -> ServerInfo { - ServerInfo { - protocol_version: ProtocolVersion::LATEST, - capabilities: ServerCapabilities::builder() + ServerInfo::new( + ServerCapabilities::builder() .enable_tools() .enable_resources() .build(), - server_info: Implementation { - name: "integration-test".to_string(), - title: None, - version: "0.1.0".to_string(), - description: None, - icons: None, - website_url: None, - }, - instructions: None, - } + ) + .with_server_info(Implementation::new("integration-test", "0.1.0")) } async fn list_resources( @@ -115,9 +106,10 @@ impl ServerHandler for DemoServer { _ctx: RequestContext, ) -> Result { match req.uri.as_str() { - "demo://readme" => Ok(ReadResourceResult { - contents: vec![ResourceContents::text("Demo content.", req.uri)], - }), + "demo://readme" => Ok(ReadResourceResult::new(vec![ResourceContents::text( + "Demo content.", + req.uri, + )])), other => Err(ErrorData::resource_not_found( "not_found", Some(serde_json::json!({ "uri": other })), @@ -162,27 +154,20 @@ async fn test_local_rmcp() { let tools = client.list_all_tools().await.expect("list tools"); assert_eq!(tools.len(), 3); - let add = client - .call_tool(CallToolRequestParams { - name: "add".into(), - arguments: serde_json::from_value(serde_json::json!({ "a": 7, "b": 5 })).ok(), - meta: None, - task: None, - }) - .await - .expect("call add"); + let add = + client + .call_tool(CallToolRequestParams::new("add").with_arguments( + serde_json::from_value(serde_json::json!({ "a": 7, "b": 5 })).unwrap(), + )) + .await + .expect("call add"); assert!(first_text(&add).contains("12")); let resources = client.list_all_resources().await.expect("list resources"); assert_eq!(resources.len(), 1); match client - .call_tool(CallToolRequestParams { - name: "no_such_tool".into(), - arguments: None, - meta: None, - task: None, - }) + .call_tool(CallToolRequestParams::new("no_such_tool")) .await { Err(_) => {} From f503b3a54431d5c16036822f3c94f2b55edfe877 Mon Sep 17 00:00:00 2001 From: Aljaz Ceru Date: Wed, 27 May 2026 21:03:39 +0200 Subject: [PATCH 093/116] Add ContextVM FFI bindings --- Cargo.toml | 4 + contextvm-ffi/.gitignore | 3 + contextvm-ffi/Cargo.toml | 20 + contextvm-ffi/README.md | 73 +++ contextvm-ffi/headers/contextvm.h | 252 ++++++++ contextvm-ffi/src/builders.rs | 208 +++++++ contextvm-ffi/src/channel.rs | 883 ++++++++++++++++++++++++++++ contextvm-ffi/src/discovery.rs | 241 ++++++++ contextvm-ffi/src/error.rs | 87 +++ contextvm-ffi/src/handle.rs | 21 + contextvm-ffi/src/kv.rs | 30 + contextvm-ffi/src/lib.rs | 23 + contextvm-ffi/src/runtime.rs | 14 + contextvm-ffi/src/types.rs | 918 ++++++++++++++++++++++++++++++ contextvm-ffi/src/uniffi_types.rs | 721 +++++++++++++++++++++++ 15 files changed, 3498 insertions(+) create mode 100644 contextvm-ffi/.gitignore create mode 100644 contextvm-ffi/Cargo.toml create mode 100644 contextvm-ffi/README.md create mode 100644 contextvm-ffi/headers/contextvm.h create mode 100644 contextvm-ffi/src/builders.rs create mode 100644 contextvm-ffi/src/channel.rs create mode 100644 contextvm-ffi/src/discovery.rs create mode 100644 contextvm-ffi/src/error.rs create mode 100644 contextvm-ffi/src/handle.rs create mode 100644 contextvm-ffi/src/kv.rs create mode 100644 contextvm-ffi/src/lib.rs create mode 100644 contextvm-ffi/src/runtime.rs create mode 100644 contextvm-ffi/src/types.rs create mode 100644 contextvm-ffi/src/uniffi_types.rs diff --git a/Cargo.toml b/Cargo.toml index e0a28b4..5cb1fec 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -71,3 +71,7 @@ tokio-test = "0.4" anyhow = "1" schemars = "0.8" tracing-subscriber = { version = "0.3", features = ["env-filter"] } + +[workspace] +members = [".", "contextvm-ffi"] +resolver = "2" diff --git a/contextvm-ffi/.gitignore b/contextvm-ffi/.gitignore new file mode 100644 index 0000000..e33a057 --- /dev/null +++ b/contextvm-ffi/.gitignore @@ -0,0 +1,3 @@ +/target +__pycache__/ +*.py[cod] diff --git a/contextvm-ffi/Cargo.toml b/contextvm-ffi/Cargo.toml new file mode 100644 index 0000000..1a47b57 --- /dev/null +++ b/contextvm-ffi/Cargo.toml @@ -0,0 +1,20 @@ +[package] +name = "contextvm-ffi" +version = "0.1.0" +edition = "2021" +description = "FFI bindings for the ContextVM SDK — C header + Python/Swift/Kotlin support" +license = "MIT" + +[lib] +name = "contextvm_ffi" +crate-type = ["cdylib", "staticlib", "lib"] + +[dependencies] +contextvm-sdk = { path = ".." } +nostr-sdk = { version = "0.43", features = ["nip59"] } +tokio = { version = "1", features = ["full"] } +serde_json = "1" +uniffi = "0.29" + +[features] +default = [] diff --git a/contextvm-ffi/README.md b/contextvm-ffi/README.md new file mode 100644 index 0000000..ed74c6b --- /dev/null +++ b/contextvm-ffi/README.md @@ -0,0 +1,73 @@ +# contextvm-ffi + +FFI bindings for the ContextVM Rust SDK. + +This crate exposes two binding surfaces: + +- A flat C ABI in `headers/contextvm.h` +- UniFFI objects for Python, Kotlin, and Swift + +Async SDK operations are driven by an internal Tokio runtime, so foreign callers +use blocking functions and do not need to manage Rust async state. + +## Build + +```bash +cd contextvm-ffi +cargo build --release +``` + +Outputs: + +- Linux: `target/release/libcontextvm_ffi.so` +- macOS: `target/release/libcontextvm_ffi.dylib` +- Windows: `target/release/contextvm_ffi.dll` + +## Generate UniFFI Bindings + +Build the shared library first, then generate bindings from the compiled +library metadata using `uniffi-bindgen` 0.29.x: + +```bash +cd contextvm-ffi +cargo build + +uniffi-bindgen generate target/debug/libcontextvm_ffi.so \ + --library \ + --crate contextvm_ffi \ + --language python \ + --out-dir python/ +``` + +Use `--language kotlin` or `--language swift` for the other supported targets. + +## C API + +Include `headers/contextvm.h` and link against `libcontextvm_ffi`. + +```c +#include "contextvm.h" + +CvmError *error = NULL; +CvmHandle keys = cvm_keys_generate(&error); + +char *public_key = cvm_keys_public_key(keys, &error); +cvm_string_free(public_key); + +cvm_keys_free(keys); +``` + +Errors are opaque. Use `cvm_error_code`, `cvm_error_message`, and +`cvm_error_free` to inspect and release them. + +## Memory Management + +Rust-owned values returned through the C ABI must be released by the caller: + +- Strings: `cvm_string_free` +- Messages: `cvm_message_free` +- Incoming requests: `cvm_incoming_request_free` +- Announcement arrays: `cvm_announcements_free` +- Discovered tool arrays: `cvm_discovered_tools_free` +- Provider profile arrays: `cvm_provider_profiles_free` +- Errors: `cvm_error_free` diff --git a/contextvm-ffi/headers/contextvm.h b/contextvm-ffi/headers/contextvm.h new file mode 100644 index 0000000..6b631e1 --- /dev/null +++ b/contextvm-ffi/headers/contextvm.h @@ -0,0 +1,252 @@ +/* + * contextvm.h — C FFI header for the ContextVM SDK + * + * Usage: + * #include "contextvm.h" + * Link against libcontextvm_ffi.a (static) or libcontextvm_ffi.so (shared) + * + * All functions that return handles use the pattern: + * - On success: returns a valid handle (id > 0) + * - On error: returns handle { id: 0 } and sets *error + * + * Strings returned by this library must be freed with cvm_string_free(). + * Structs with owned strings must be freed with their respective _free functions. + * + * Error pointers should be freed with cvm_error_free(). + */ + +#ifndef CONTEXTVM_FFI_H +#define CONTEXTVM_FFI_H + +#include +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/* ─── Opaque Handle ────────────────────────────────────────────────── */ + +typedef struct { + uint64_t id; +} CvmHandle; + +/* ─── Error ────────────────────────────────────────────────────────── */ + +typedef enum { + CVM_OK = 0, + CVM_TRANSPORT = 1, + CVM_ENCRYPTION = 2, + CVM_DECRYPTION = 3, + CVM_TIMEOUT = 4, + CVM_VALIDATION = 5, + CVM_UNAUTHORIZED = 6, + CVM_SERIALIZATION = 7, + CVM_OTHER = 99, +} CvmErrorCode; + +typedef struct CvmError CvmError; + +/* ─── Enums ─────────────────────────────────────────────────────────── */ + +typedef enum { + CVM_ENCRYPTION_OPTIONAL = 0, + CVM_ENCRYPTION_REQUIRED = 1, + CVM_ENCRYPTION_DISABLED = 2, +} CvmEncryptionMode; + +typedef enum { + CVM_GIFTWRAP_OPTIONAL = 0, + CVM_GIFTWRAP_EPHEMERAL = 1, + CVM_GIFTWRAP_PERSISTENT = 2, +} CvmGiftWrapMode; + +typedef enum { + CVM_MSG_REQUEST = 0, + CVM_MSG_RESPONSE = 1, + CVM_MSG_ERROR_RESPONSE = 2, + CVM_MSG_NOTIFICATION = 3, +} CvmJsonRpcType; + +/* ─── Structs ──────────────────────────────────────────────────────── */ + +typedef struct { + CvmJsonRpcType msg_type; + char *payload_json; /* owned JSON string */ + char *method; /* owned, may be NULL */ + char *id; /* owned, may be NULL */ +} CvmJsonRpcMessage; + +typedef struct { + CvmJsonRpcMessage message; + char *client_pubkey; /* owned hex string */ + char *event_id; /* owned hex string */ + bool is_encrypted; +} CvmIncomingRequest; + +typedef struct { + char *pubkey; /* owned hex string */ + char *name; /* owned, may be NULL */ + char *version; /* owned, may be NULL */ + char *picture; /* owned, may be NULL */ + char *about; /* owned, may be NULL */ + char *website; /* owned, may be NULL */ + char *event_id; /* owned hex string */ +} CvmServerAnnouncement; + +typedef struct { + char *provider_pubkey; /* owned hex string */ + char *provider_display_name; /* owned, may be NULL */ + char *provider_name; /* owned, may be NULL */ + char *provider_about; /* owned, may be NULL */ + char *provider_picture; /* owned, may be NULL */ + char *provider_nip05; /* owned, may be NULL */ + char *tool_name; /* owned */ + char *description; /* owned */ + char *schema_json; /* owned JSON string */ +} CvmDiscoveredTool; + +typedef struct { + char *pubkey; /* owned hex string */ + char *name; /* owned, may be NULL */ + char *about; /* owned, may be NULL */ + char *picture; /* owned, may be NULL */ + char *nip05; /* owned, may be NULL */ +} CvmProviderProfile; + +typedef struct { + char **relay_urls; + size_t relay_url_count; + CvmEncryptionMode encryption_mode; + CvmGiftWrapMode gift_wrap_mode; + bool is_announced_server; + char *server_name; /* may be NULL */ + char *server_version; /* may be NULL */ + char *server_picture; /* may be NULL */ + char *server_about; /* may be NULL */ + char *server_website; /* may be NULL */ + char **allowed_pubkeys; + size_t allowed_pubkey_count; + uint64_t session_timeout_secs; + uint64_t cleanup_interval_secs; +} CvmServerConfig; + +typedef struct { + char **relay_urls; + size_t relay_url_count; + char *server_pubkey; /* required */ + CvmEncryptionMode encryption_mode; + CvmGiftWrapMode gift_wrap_mode; + bool is_stateless; + uint64_t timeout_secs; +} CvmClientConfig; + +/* ─── Free Functions ───────────────────────────────────────────────── */ + +void cvm_string_free(char *s); +void cvm_message_free(CvmJsonRpcMessage msg); +void cvm_incoming_request_free(CvmIncomingRequest req); +void cvm_announcements_free(CvmServerAnnouncement *announcements, size_t count); +void cvm_discovered_tools_free(CvmDiscoveredTool *tools, size_t count); +void cvm_provider_profiles_free(CvmProviderProfile *profiles, size_t count); +void cvm_error_free(CvmError *e); +char *cvm_error_message(const CvmError *e); +CvmErrorCode cvm_error_code(const CvmError *e); + +/* ─── Version ──────────────────────────────────────────────────────── */ + +char *cvm_version(void); + +/* ─── Keys / Signer ────────────────────────────────────────────────── */ + +CvmHandle cvm_keys_generate(CvmError **error); +CvmHandle cvm_keys_from_secret_key(const char *sk, CvmError **error); +char *cvm_keys_public_key(CvmHandle handle, CvmError **error); +char *cvm_keys_secret_key(CvmHandle handle, CvmError **error); +void cvm_keys_free(CvmHandle handle); + +/* ─── Relay Pool ───────────────────────────────────────────────────── */ + +CvmHandle cvm_relay_pool_new(CvmHandle keys_handle, CvmError **error); +bool cvm_relay_pool_connect(CvmHandle pool_handle, char **urls, size_t count, CvmError **error); +bool cvm_relay_pool_disconnect(CvmHandle pool_handle, CvmError **error); +void cvm_relay_pool_free(CvmHandle handle); + +/* ─── Server (channel-based) ──────────────────────────────────────── */ + +CvmHandle cvm_server_ch_new(CvmHandle keys_handle, CvmServerConfig config, CvmError **error); +bool cvm_server_ch_recv(CvmHandle handle, CvmIncomingRequest *out_req, CvmError **error); +bool cvm_server_ch_send_response(CvmHandle handle, const char *event_id, const char *payload_json, CvmError **error); +bool cvm_server_ch_announce(CvmHandle handle, CvmError **error); +bool cvm_server_ch_close(CvmHandle handle, CvmError **error); + +/* ─── Client (channel-based) ──────────────────────────────────────── */ + +CvmHandle cvm_client_ch_new(CvmHandle keys_handle, CvmClientConfig config, CvmError **error); +bool cvm_client_ch_send(CvmHandle handle, const char *payload_json, CvmError **error); +bool cvm_client_ch_recv(CvmHandle handle, CvmJsonRpcMessage *out_msg, CvmError **error); +bool cvm_client_ch_close(CvmHandle handle, CvmError **error); + +/* ─── Gateway (channel-based) ─────────────────────────────────────── */ + +CvmHandle cvm_gateway_ch_new(CvmHandle keys_handle, CvmServerConfig config, CvmError **error); +bool cvm_gateway_ch_recv(CvmHandle handle, CvmIncomingRequest *out_req, CvmError **error); +bool cvm_gateway_ch_send_response(CvmHandle handle, const char *event_id, const char *payload_json, CvmError **error); +bool cvm_gateway_ch_announce(CvmHandle handle, CvmError **error); +bool cvm_gateway_ch_stop(CvmHandle handle, CvmError **error); + +/* ─── Proxy (channel-based) ───────────────────────────────────────── */ + +CvmHandle cvm_proxy_ch_new(CvmHandle keys_handle, CvmClientConfig config, CvmError **error); +bool cvm_proxy_ch_send(CvmHandle handle, const char *payload_json, CvmError **error); +bool cvm_proxy_ch_recv(CvmHandle handle, CvmJsonRpcMessage *out_msg, CvmError **error); +bool cvm_proxy_ch_recv_timeout(CvmHandle handle, uint64_t timeout_secs, CvmJsonRpcMessage *out_msg, CvmError **error); +bool cvm_proxy_ch_stop(CvmHandle handle, CvmError **error); + +/* ─── Discovery ────────────────────────────────────────────────────── */ + +CvmServerAnnouncement *cvm_discover_servers( + CvmHandle pool_handle, + char **relay_urls, + size_t url_count, + size_t *out_count, + CvmError **error +); +CvmDiscoveredTool *cvm_discover_tools( + CvmHandle pool_handle, + const char *provider_pubkey_hex, + const char *provider_display_name, + char **relay_urls, + size_t url_count, + size_t *out_count, + CvmError **error +); +CvmDiscoveredTool *cvm_discover_all_tools( + CvmHandle pool_handle, + char **relay_urls, + size_t url_count, + size_t *out_count, + CvmError **error +); +CvmProviderProfile *cvm_fetch_provider_profiles( + CvmHandle pool_handle, + char **provider_pubkeys, + size_t provider_pubkey_count, + char **relay_urls, + size_t url_count, + size_t *out_count, + CvmError **error +); + +/* ─── Encryption ───────────────────────────────────────────────────── */ + +char *cvm_encrypt_nip44(CvmHandle keys_handle, const char *recipient_hex, const char *plaintext, CvmError **error); +char *cvm_decrypt_nip44(CvmHandle keys_handle, const char *sender_hex, const char *ciphertext, CvmError **error); +char *cvm_pubkey_hex_to_npub(const char *pubkey_hex, CvmError **error); + +#ifdef __cplusplus +} +#endif + +#endif /* CONTEXTVM_FFI_H */ diff --git a/contextvm-ffi/src/builders.rs b/contextvm-ffi/src/builders.rs new file mode 100644 index 0000000..e6c726d --- /dev/null +++ b/contextvm-ffi/src/builders.rs @@ -0,0 +1,208 @@ +//! Helper functions for building SDK types from FFI configs. +//! +//! The SDK's public types are `#[non_exhaustive]`, so we can't construct +//! them with struct literals from outside the crate. These helpers use +//! the builder pattern instead. + +use std::time::Duration; + +use crate::types::{c_str_array_to_vec, c_str_to_string, FfiClientConfig, FfiServerConfig}; + +pub struct ServerConfigParts { + pub relay_urls: Vec, + pub encryption_mode: contextvm_sdk::EncryptionMode, + pub gift_wrap_mode: contextvm_sdk::GiftWrapMode, + pub server_name: Option, + pub server_version: Option, + pub server_picture: Option, + pub server_about: Option, + pub server_website: Option, + pub is_announced_server: bool, + pub allowed_pubkeys: Vec, + pub session_timeout_secs: u64, + pub cleanup_interval_secs: u64, +} + +/// Build a `ServerInfo` from FFI C strings. +pub fn build_server_info( + name: Option, + version: Option, + picture: Option, + about: Option, + website: Option, +) -> Option { + if name.is_none() + && version.is_none() + && picture.is_none() + && about.is_none() + && website.is_none() + { + return None; + } + + let mut info = contextvm_sdk::ServerInfo::default(); + if let Some(n) = name { + info = info.with_name(n); + } + if let Some(v) = version { + info = info.with_version(v); + } + if let Some(p) = picture { + info = info.with_picture(p); + } + if let Some(a) = about { + info = info.with_about(a); + } + if let Some(w) = website { + info = info.with_website(w); + } + Some(info) +} + +/// Extract fields from an FfiServerConfig and build an SDK server config. +pub fn build_sdk_server_config( + config: &FfiServerConfig, +) -> contextvm_sdk::NostrServerTransportConfig { + let relay_urls = c_str_array_to_vec(config.relay_urls, config.relay_url_count); + let allowed = c_str_array_to_vec(config.allowed_pubkeys, config.allowed_pubkey_count); + + let server_info = build_server_info( + c_str_to_string(config.server_name), + c_str_to_string(config.server_version), + c_str_to_string(config.server_picture), + c_str_to_string(config.server_about), + c_str_to_string(config.server_website), + ); + + let mut sdk_config = contextvm_sdk::NostrServerTransportConfig::default() + .with_relay_urls(if relay_urls.is_empty() { + vec!["wss://relay.damus.io".to_string()] + } else { + relay_urls + }) + .with_encryption_mode(config.encryption_mode.into()) + .with_gift_wrap_mode(config.gift_wrap_mode.into()) + .with_announced_server(config.is_announced_server) + .with_allowed_public_keys(allowed) + .with_session_timeout(Duration::from_secs(config.session_timeout_secs.max(1))) + .with_cleanup_interval(Duration::from_secs(config.cleanup_interval_secs.max(1))); + + if let Some(server_info) = server_info { + sdk_config = sdk_config.with_server_info(server_info); + } + + sdk_config +} + +/// Extract fields from an FfiClientConfig and build an SDK client config. +pub fn build_sdk_client_config( + config: &FfiClientConfig, +) -> Option { + let server_pubkey = c_str_to_string(config.server_pubkey)?; + let relay_urls = c_str_array_to_vec(config.relay_urls, config.relay_url_count); + + Some( + contextvm_sdk::NostrClientTransportConfig::default() + .with_relay_urls(relay_urls) + .with_server_pubkey(server_pubkey) + .with_encryption_mode(config.encryption_mode.into()) + .with_gift_wrap_mode(config.gift_wrap_mode.into()) + .with_stateless(config.is_stateless) + .with_timeout(Duration::from_secs(config.timeout_secs.max(1))), + ) +} + +/// Build a server config from UniFFI record fields. +pub fn build_sdk_server_config_from_fields( + parts: ServerConfigParts, +) -> contextvm_sdk::NostrServerTransportConfig { + let server_info = build_server_info( + parts.server_name, + parts.server_version, + parts.server_picture, + parts.server_about, + parts.server_website, + ); + + let mut sdk_config = contextvm_sdk::NostrServerTransportConfig::default() + .with_relay_urls(if parts.relay_urls.is_empty() { + vec!["wss://relay.damus.io".to_string()] + } else { + parts.relay_urls + }) + .with_encryption_mode(parts.encryption_mode) + .with_gift_wrap_mode(parts.gift_wrap_mode) + .with_announced_server(parts.is_announced_server) + .with_allowed_public_keys(parts.allowed_pubkeys) + .with_session_timeout(Duration::from_secs(parts.session_timeout_secs.max(1))) + .with_cleanup_interval(Duration::from_secs(parts.cleanup_interval_secs.max(1))); + + if let Some(server_info) = server_info { + sdk_config = sdk_config.with_server_info(server_info); + } + + sdk_config +} + +/// Build a client config from UniFFI record fields. +pub fn build_sdk_client_config_from_fields( + relay_urls: Vec, + server_pubkey: String, + encryption_mode: contextvm_sdk::EncryptionMode, + gift_wrap_mode: contextvm_sdk::GiftWrapMode, + is_stateless: bool, + timeout_secs: u64, +) -> contextvm_sdk::NostrClientTransportConfig { + contextvm_sdk::NostrClientTransportConfig::default() + .with_relay_urls(relay_urls) + .with_server_pubkey(server_pubkey) + .with_encryption_mode(encryption_mode) + .with_gift_wrap_mode(gift_wrap_mode) + .with_stateless(is_stateless) + .with_timeout(Duration::from_secs(timeout_secs.max(1))) +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn omitted_server_info_matches_sdk_default() { + assert!(build_server_info(None, None, None, None, None).is_none()); + + let config = build_sdk_server_config_from_fields(ServerConfigParts { + relay_urls: vec!["wss://relay.example.com".to_string()], + encryption_mode: contextvm_sdk::EncryptionMode::Optional, + gift_wrap_mode: contextvm_sdk::GiftWrapMode::Optional, + server_name: None, + server_version: None, + server_picture: None, + server_about: None, + server_website: None, + is_announced_server: false, + allowed_pubkeys: vec![], + session_timeout_secs: 300, + cleanup_interval_secs: 60, + }); + + assert!(config.server_info.is_none()); + } + + #[test] + fn server_info_preserves_sdk_fields() { + let info = build_server_info( + Some("name".to_string()), + Some("1.2.3".to_string()), + Some("https://example.com/pic.png".to_string()), + Some("about".to_string()), + Some("https://example.com".to_string()), + ) + .expect("server info should be present when any field is supplied"); + + assert_eq!(info.name.as_deref(), Some("name")); + assert_eq!(info.version.as_deref(), Some("1.2.3")); + assert_eq!(info.picture.as_deref(), Some("https://example.com/pic.png")); + assert_eq!(info.about.as_deref(), Some("about")); + assert_eq!(info.website.as_deref(), Some("https://example.com")); + } +} diff --git a/contextvm-ffi/src/channel.rs b/contextvm-ffi/src/channel.rs new file mode 100644 index 0000000..e05638b --- /dev/null +++ b/contextvm-ffi/src/channel.rs @@ -0,0 +1,883 @@ +//! Channel-based wrapper types that allow FFI consumers to receive messages. + +use crate::builders::{build_sdk_client_config, build_sdk_server_config}; +use crate::error::{set_error, FfiError}; +use crate::handle::FfiHandle; +use crate::kv; +use crate::runtime::global_runtime; +use crate::types::*; + +use std::os::raw::c_char; +use std::time::Duration; +use tokio::sync::Mutex; + +// ─── Wrappers that combine transport + receiver ──────────────────────── + +/// Server wrapper holding transport + message receiver. +pub struct ServerChannel { + transport: Mutex, + receiver: Mutex>, +} + +/// Client wrapper holding transport + message receiver. +pub struct ClientChannel { + transport: Mutex, + receiver: Mutex>, +} + +/// Gateway wrapper holding gateway + message receiver. +pub struct GatewayChannel { + gateway: Mutex, + receiver: Mutex>, +} + +/// Proxy wrapper holding proxy + message receiver. +pub struct ProxyChannel { + proxy: Mutex, + receiver: Mutex>, +} + +// ─── Server Channel API ──────────────────────────────────────────────── + +/// Create and start a server transport with a channel receiver. +#[no_mangle] +pub extern "C" fn cvm_server_ch_new( + keys_handle: FfiHandle, + config: FfiServerConfig, + error: *mut *mut FfiError, +) -> FfiHandle { + let keys = match get_keys(keys_handle, error) { + Some(k) => k, + None => return FfiHandle { id: 0 }, + }; + + let sdk_config = build_sdk_server_config(&config); + + let result = global_runtime().block_on(async { + let mut transport = contextvm_sdk::NostrServerTransport::new(keys, sdk_config).await?; + transport.start().await?; + let receiver = transport + .take_message_receiver() + .ok_or_else(|| contextvm_sdk::Error::Other("receiver already taken".into()))?; + Ok::<_, contextvm_sdk::Error>(ServerChannel { + transport: Mutex::new(transport), + receiver: Mutex::new(receiver), + }) + }); + + match result { + Ok(ch) => kv::insert(ch), + Err(e) => { + set_error(error, e.into()); + FfiHandle { id: 0 } + } + } +} + +/// Receive the next incoming request. Blocks until available. +#[no_mangle] +pub extern "C" fn cvm_server_ch_recv( + handle: FfiHandle, + out_req: *mut FfiIncomingRequest, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid server channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + receiver.recv().await + }) { + Some(incoming) => { + if !out_req.is_null() { + unsafe { + *out_req = FfiIncomingRequest { + message: message_to_ffi(&incoming.message), + client_pubkey: string_to_c(incoming.client_pubkey), + event_id: string_to_c(incoming.event_id), + is_encrypted: incoming.is_encrypted, + }; + } + } + true + } + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + } +} + +/// Send a response through a server channel. +#[no_mangle] +pub extern "C" fn cvm_server_ch_send_response( + handle: FfiHandle, + event_id: *const c_char, + payload_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let guard = kv::get::(handle); + let channel = match guard { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid server channel handle".into(), + }, + ); + return false; + } + }; + + let eid = match c_str_to_string(event_id) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Validation, + message: "null event_id".into(), + }, + ); + return false; + } + }; + + let msg = match parse_json_rpc_message(payload_json, error) { + Some(m) => m, + None => return false, + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.send_response(&eid, msg).await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Publish server announcement. +#[no_mangle] +pub extern "C" fn cvm_server_ch_announce(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let guard = kv::get::(handle); + let channel = match guard { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid server channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.announce().await + }) { + Ok(_) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Close a server channel. +#[no_mangle] +pub extern "C" fn cvm_server_ch_close(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid server channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut transport = channel.transport.lock().await; + transport.close().await + }) { + Ok(()) => { + kv::remove(handle); + true + } + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +// ─── Client Channel API ──────────────────────────────────────────────── + +/// Create and start a client transport with a channel receiver. +#[no_mangle] +pub extern "C" fn cvm_client_ch_new( + keys_handle: FfiHandle, + config: FfiClientConfig, + error: *mut *mut FfiError, +) -> FfiHandle { + let keys = match get_keys(keys_handle, error) { + Some(k) => k, + None => return FfiHandle { id: 0 }, + }; + + let sdk_config = match build_sdk_client_config(&config) { + Some(c) => c, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Validation, + message: "server_pubkey is required".into(), + }, + ); + return FfiHandle { id: 0 }; + } + }; + + let result = global_runtime().block_on(async { + let mut transport = contextvm_sdk::NostrClientTransport::new(keys, sdk_config).await?; + transport.start().await?; + let receiver = transport + .take_message_receiver() + .ok_or_else(|| contextvm_sdk::Error::Other("receiver already taken".into()))?; + Ok::<_, contextvm_sdk::Error>(ClientChannel { + transport: Mutex::new(transport), + receiver: Mutex::new(receiver), + }) + }); + + match result { + Ok(ch) => kv::insert(ch), + Err(e) => { + set_error(error, e.into()); + FfiHandle { id: 0 } + } + } +} + +/// Send a message through a client channel. +#[no_mangle] +pub extern "C" fn cvm_client_ch_send( + handle: FfiHandle, + payload_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let guard = kv::get::(handle); + let channel = match guard { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid client channel handle".into(), + }, + ); + return false; + } + }; + + let msg = match parse_json_rpc_message(payload_json, error) { + Some(m) => m, + None => return false, + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.send(&msg).await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Receive the next message. Blocks until available. +#[no_mangle] +pub extern "C" fn cvm_client_ch_recv( + handle: FfiHandle, + out_msg: *mut FfiJsonRpcMessage, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid client channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + receiver.recv().await + }) { + Some(message) => { + if !out_msg.is_null() { + unsafe { + *out_msg = message_to_ffi(&message); + } + } + true + } + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + } +} + +/// Close a client channel. +#[no_mangle] +pub extern "C" fn cvm_client_ch_close(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid client channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut transport = channel.transport.lock().await; + transport.close().await + }) { + Ok(()) => { + kv::remove(handle); + true + } + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +// ─── Gateway Channel API ─────────────────────────────────────────────── + +/// Create and start a gateway with a channel receiver. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_new( + keys_handle: FfiHandle, + config: FfiServerConfig, + error: *mut *mut FfiError, +) -> FfiHandle { + let keys = match get_keys(keys_handle, error) { + Some(k) => k, + None => return FfiHandle { id: 0 }, + }; + + let sdk_config = build_sdk_server_config(&config); + let gw_config = contextvm_sdk::gateway::GatewayConfig::new(sdk_config); + + let result = global_runtime().block_on(async { + let mut gw = contextvm_sdk::gateway::NostrMCPGateway::new(keys, gw_config).await?; + let receiver = gw.start().await?; + Ok::<_, contextvm_sdk::Error>(GatewayChannel { + gateway: Mutex::new(gw), + receiver: Mutex::new(receiver), + }) + }); + + match result { + Ok(ch) => kv::insert(ch), + Err(e) => { + set_error(error, e.into()); + FfiHandle { id: 0 } + } + } +} + +/// Receive the next request from a gateway channel. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_recv( + handle: FfiHandle, + out_req: *mut FfiIncomingRequest, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid gateway channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + receiver.recv().await + }) { + Some(incoming) => { + if !out_req.is_null() { + unsafe { + *out_req = FfiIncomingRequest { + message: message_to_ffi(&incoming.message), + client_pubkey: string_to_c(incoming.client_pubkey), + event_id: string_to_c(incoming.event_id), + is_encrypted: incoming.is_encrypted, + }; + } + } + true + } + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + } +} + +/// Send a response through a gateway channel. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_send_response( + handle: FfiHandle, + event_id: *const c_char, + payload_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let guard = kv::get::(handle); + let channel = match guard { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid gateway channel handle".into(), + }, + ); + return false; + } + }; + + let eid = match c_str_to_string(event_id) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Validation, + message: "null event_id".into(), + }, + ); + return false; + } + }; + + let msg = match parse_json_rpc_message(payload_json, error) { + Some(m) => m, + None => return false, + }; + + match global_runtime().block_on(async { + let gateway = channel.gateway.lock().await; + gateway.send_response(&eid, msg).await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Publish announcement through a gateway channel. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_announce(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let guard = kv::get::(handle); + let channel = match guard { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid gateway channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let gateway = channel.gateway.lock().await; + gateway.announce().await + }) { + Ok(_) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Stop a gateway channel. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_stop(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid gateway channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut gateway = channel.gateway.lock().await; + gateway.stop().await + }) { + Ok(()) => { + kv::remove(handle); + true + } + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +// ─── Proxy Channel API ───────────────────────────────────────────────── + +/// Create and start a proxy with a channel receiver. +#[no_mangle] +pub extern "C" fn cvm_proxy_ch_new( + keys_handle: FfiHandle, + config: FfiClientConfig, + error: *mut *mut FfiError, +) -> FfiHandle { + let keys = match get_keys(keys_handle, error) { + Some(k) => k, + None => return FfiHandle { id: 0 }, + }; + + let sdk_config = match build_sdk_client_config(&config) { + Some(c) => c, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Validation, + message: "server_pubkey is required".into(), + }, + ); + return FfiHandle { id: 0 }; + } + }; + + let proxy_config = contextvm_sdk::proxy::ProxyConfig::new(sdk_config); + + let result = global_runtime().block_on(async { + let mut proxy = contextvm_sdk::proxy::NostrMCPProxy::new(keys, proxy_config).await?; + let receiver = proxy.start().await?; + Ok::<_, contextvm_sdk::Error>(ProxyChannel { + proxy: Mutex::new(proxy), + receiver: Mutex::new(receiver), + }) + }); + + match result { + Ok(ch) => kv::insert(ch), + Err(e) => { + set_error(error, e.into()); + FfiHandle { id: 0 } + } + } +} + +/// Send a message through a proxy channel. +#[no_mangle] +pub extern "C" fn cvm_proxy_ch_send( + handle: FfiHandle, + payload_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let guard = kv::get::(handle); + let channel = match guard { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid proxy channel handle".into(), + }, + ); + return false; + } + }; + + let msg = match parse_json_rpc_message(payload_json, error) { + Some(m) => m, + None => return false, + }; + + match global_runtime().block_on(async { + let proxy = channel.proxy.lock().await; + proxy.send(&msg).await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Receive the next message from a proxy channel. +#[no_mangle] +pub extern "C" fn cvm_proxy_ch_recv( + handle: FfiHandle, + out_msg: *mut FfiJsonRpcMessage, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid proxy channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + receiver.recv().await + }) { + Some(message) => { + if !out_msg.is_null() { + unsafe { + *out_msg = message_to_ffi(&message); + } + } + true + } + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + } +} + +/// Receive the next message from a proxy channel, timing out after `timeout_secs`. +#[no_mangle] +pub extern "C" fn cvm_proxy_ch_recv_timeout( + handle: FfiHandle, + timeout_secs: u64, + out_msg: *mut FfiJsonRpcMessage, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid proxy channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + tokio::time::timeout(Duration::from_secs(timeout_secs), receiver.recv()).await + }) { + Ok(Some(message)) => { + if !out_msg.is_null() { + unsafe { + *out_msg = message_to_ffi(&message); + } + } + true + } + Ok(None) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + Err(_) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Timeout, + message: "receive timed out".into(), + }, + ); + false + } + } +} + +/// Stop a proxy channel. +#[no_mangle] +pub extern "C" fn cvm_proxy_ch_stop(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid proxy channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut proxy = channel.proxy.lock().await; + proxy.stop().await + }) { + Ok(()) => { + kv::remove(handle); + true + } + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +// ─── Helpers ─────────────────────────────────────────────────────────── + +fn get_keys(handle: FfiHandle, error: *mut *mut FfiError) -> Option { + match kv::get::(handle) { + Some(k) => Some(k.as_ref().clone()), + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid key handle".into(), + }, + ); + None + } + } +} + +fn parse_json_rpc_message( + payload_json: *const c_char, + error: *mut *mut FfiError, +) -> Option { + let json_str = match c_str_to_string(payload_json) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Validation, + message: "null payload json".into(), + }, + ); + return None; + } + }; + + match serde_json::from_str(&json_str) { + Ok(m) => Some(m), + Err(e) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Serialization, + message: e.to_string(), + }, + ); + None + } + } +} diff --git a/contextvm-ffi/src/discovery.rs b/contextvm-ffi/src/discovery.rs new file mode 100644 index 0000000..d243e4f --- /dev/null +++ b/contextvm-ffi/src/discovery.rs @@ -0,0 +1,241 @@ +//! Shared discovery helpers for C and UniFFI bindings. + +use contextvm_sdk::signer::PublicKey; +use nostr_sdk::prelude::*; +use std::collections::{HashMap, HashSet}; +use std::sync::Arc; +use std::time::Duration; + +#[derive(Debug, Clone)] +pub(crate) struct DiscoveredToolRecord { + pub provider_pubkey: String, + pub provider_display_name: Option, + pub provider_name: Option, + pub provider_about: Option, + pub provider_picture: Option, + pub provider_nip05: Option, + pub tool_name: String, + pub description: String, + pub schema_json: String, +} + +#[derive(Debug, Clone)] +pub(crate) struct ProviderProfileRecord { + pub pubkey: String, + pub name: Option, + pub about: Option, + pub picture: Option, + pub nip05: Option, +} + +pub(crate) async fn discover_tools( + client: &Arc, + provider_pubkey: &str, + provider_display_name: Option, + relay_urls: &[String], +) -> contextvm_sdk::Result> { + let parsed_pubkey = PublicKey::from_hex(provider_pubkey) + .map_err(|e| contextvm_sdk::Error::Validation(format!("bad pubkey: {e}")))?; + let raw_tools = + contextvm_sdk::discovery::discover_tools(client, &parsed_pubkey, relay_urls).await?; + + raw_tools + .into_iter() + .map(|tool| tool_record_from_value(provider_pubkey, provider_display_name.clone(), tool)) + .collect() +} + +pub(crate) async fn discover_all_tools( + client: &Arc, + relay_urls: &[String], +) -> contextvm_sdk::Result> { + let servers = contextvm_sdk::discovery::discover_servers(client, relay_urls).await?; + let mut tools = Vec::new(); + + for server in servers { + match discover_tools( + client, + &server.pubkey, + server.server_info.name.clone(), + relay_urls, + ) + .await + { + Ok(mut server_tools) => tools.append(&mut server_tools), + Err(_) => continue, + } + } + + let provider_pubkeys: Vec = tools + .iter() + .map(|tool| tool.provider_pubkey.clone()) + .collect::>() + .into_iter() + .collect(); + if let Ok(profiles) = fetch_provider_profiles(client, &provider_pubkeys, relay_urls).await { + for tool in &mut tools { + if let Some(profile) = profiles.get(&tool.provider_pubkey) { + tool.provider_name = profile.name.clone(); + tool.provider_about = profile.about.clone(); + tool.provider_picture = profile.picture.clone(); + tool.provider_nip05 = profile.nip05.clone(); + } + } + } + + Ok(tools) +} + +pub(crate) async fn fetch_provider_profiles( + client: &Arc, + provider_pubkeys: &[String], + relay_urls: &[String], +) -> contextvm_sdk::Result> { + let parsed_pubkeys: Vec = provider_pubkeys + .iter() + .filter_map(|pubkey| PublicKey::from_hex(pubkey).ok()) + .collect(); + + if parsed_pubkeys.is_empty() { + return Ok(HashMap::new()); + } + + let filter = Filter::new().authors(parsed_pubkeys).kind(Kind::Metadata); + let timeout = Duration::from_secs(10); + let events = if relay_urls.is_empty() { + client.fetch_events(filter, timeout).await + } else { + client.fetch_events_from(relay_urls, filter, timeout).await + } + .map_err(|e| contextvm_sdk::Error::Transport(e.to_string()))?; + + let mut profiles = HashMap::new(); + for event in events { + if let Some(profile) = profile_from_metadata(event.pubkey.to_hex(), &event.content) { + profiles.insert(profile.pubkey.clone(), profile); + } + } + + Ok(profiles) +} + +pub(crate) fn pubkey_hex_to_npub(pubkey_hex: &str) -> contextvm_sdk::Result { + use nostr_sdk::ToBech32; + + let pubkey = PublicKey::from_hex(pubkey_hex) + .map_err(|e| contextvm_sdk::Error::Validation(format!("bad pubkey: {e}")))?; + pubkey + .to_bech32() + .map_err(|e| contextvm_sdk::Error::Other(e.to_string())) +} + +fn tool_record_from_value( + provider_pubkey: &str, + provider_display_name: Option, + value: serde_json::Value, +) -> contextvm_sdk::Result { + let tool_name = value + .get("name") + .and_then(|v| v.as_str()) + .ok_or_else(|| contextvm_sdk::Error::Other("tool announcement missing name".into()))? + .to_string(); + let description = value + .get("description") + .and_then(|v| v.as_str()) + .unwrap_or_default() + .to_string(); + let schema = value + .get("inputSchema") + .or_else(|| value.get("input_schema")) + .ok_or_else(|| { + contextvm_sdk::Error::Other(format!( + "tool announcement {tool_name} missing inputSchema" + )) + })?; + let schema_json = serde_json::to_string(schema).map_err(contextvm_sdk::Error::Serialization)?; + + Ok(DiscoveredToolRecord { + provider_pubkey: provider_pubkey.to_string(), + provider_display_name, + provider_name: None, + provider_about: None, + provider_picture: None, + provider_nip05: None, + tool_name, + description, + schema_json, + }) +} + +fn profile_from_metadata(pubkey: String, content: &str) -> Option { + let metadata: serde_json::Value = serde_json::from_str(content).ok()?; + Some(ProviderProfileRecord { + pubkey, + name: metadata + .get("name") + .and_then(|v| v.as_str()) + .map(String::from), + about: metadata + .get("about") + .and_then(|v| v.as_str()) + .map(String::from), + picture: metadata + .get("picture") + .and_then(|v| v.as_str()) + .map(String::from), + nip05: metadata + .get("nip05") + .and_then(|v| v.as_str()) + .map(String::from), + }) +} + +#[cfg(test)] +mod tests { + use super::*; + use serde_json::json; + + #[test] + fn tool_record_preserves_confidential_app_fields() { + let tool = tool_record_from_value( + "abc", + Some("provider".to_string()), + json!({ + "name": "echo", + "description": "Echo a message", + "inputSchema": { + "type": "object", + "properties": { + "message": { "type": "string" } + } + } + }), + ) + .unwrap(); + + assert_eq!(tool.provider_pubkey, "abc"); + assert_eq!(tool.provider_display_name.as_deref(), Some("provider")); + assert_eq!(tool.tool_name, "echo"); + assert_eq!(tool.description, "Echo a message"); + assert!(tool.schema_json.contains("message")); + } + + #[test] + fn profile_metadata_maps_provider_fields() { + let profile = profile_from_metadata( + "abc".to_string(), + r#"{"name":"Provider","about":"About","picture":"https://pic","nip05":"p@example.com"}"#, + ) + .unwrap(); + + assert_eq!(profile.name.as_deref(), Some("Provider")); + assert_eq!(profile.about.as_deref(), Some("About")); + assert_eq!(profile.picture.as_deref(), Some("https://pic")); + assert_eq!(profile.nip05.as_deref(), Some("p@example.com")); + } + + #[test] + fn pubkey_hex_to_npub_rejects_invalid_hex() { + assert!(pubkey_hex_to_npub("not-hex").is_err()); + } +} diff --git a/contextvm-ffi/src/error.rs b/contextvm-ffi/src/error.rs new file mode 100644 index 0000000..413b331 --- /dev/null +++ b/contextvm-ffi/src/error.rs @@ -0,0 +1,87 @@ +//! FFI-safe error type. + +use std::fmt; + +/// Error codes returned by the FFI layer. +#[repr(C)] +#[derive(Debug, Clone, Copy, PartialEq, Eq, uniffi::Enum)] +pub enum ErrorCode { + /// Success (no error). + Ok = 0, + /// Transport / relay error. + Transport = 1, + /// Encryption (NIP-44) error. + Encryption = 2, + /// Decryption error. + Decryption = 3, + /// Request timed out. + Timeout = 4, + /// Validation error (size/schema). + Validation = 5, + /// Unauthorized (pubkey not in allowlist). + Unauthorized = 6, + /// Serialization/deserialization error. + Serialization = 7, + /// Generic / unknown error. + Other = 99, +} + +impl From<&contextvm_sdk::Error> for ErrorCode { + fn from(e: &contextvm_sdk::Error) -> Self { + match e { + contextvm_sdk::Error::Transport(_) => ErrorCode::Transport, + contextvm_sdk::Error::Encryption(_) => ErrorCode::Encryption, + contextvm_sdk::Error::Decryption(_) => ErrorCode::Decryption, + contextvm_sdk::Error::Timeout => ErrorCode::Timeout, + contextvm_sdk::Error::Validation(_) => ErrorCode::Validation, + contextvm_sdk::Error::Unauthorized(_) => ErrorCode::Unauthorized, + contextvm_sdk::Error::Serialization(_) => ErrorCode::Serialization, + contextvm_sdk::Error::Other(_) => ErrorCode::Other, + } + } +} + +/// An FFI-safe error with a code and human-readable message. +#[derive(Debug, Clone, uniffi::Object)] +pub struct FfiError { + pub code: ErrorCode, + pub message: String, +} + +#[uniffi::export] +impl FfiError { + /// Get the error code. + pub fn code(&self) -> ErrorCode { + self.code + } + + /// Get the error message. + pub fn message(&self) -> String { + self.message.clone() + } +} + +impl std::fmt::Display for FfiError { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + write!(f, "{:?}: {}", self.code, self.message) + } +} + +impl std::error::Error for FfiError {} + +impl From for FfiError { + fn from(e: contextvm_sdk::Error) -> Self { + FfiError { + code: ErrorCode::from(&e), + message: e.to_string(), + } + } +} + +pub(crate) fn set_error(out: *mut *mut FfiError, err: FfiError) { + if !out.is_null() { + unsafe { + *out = Box::into_raw(Box::new(err)); + } + } +} diff --git a/contextvm-ffi/src/handle.rs b/contextvm-ffi/src/handle.rs new file mode 100644 index 0000000..000a612 --- /dev/null +++ b/contextvm-ffi/src/handle.rs @@ -0,0 +1,21 @@ +//! Opaque handle type for FFI consumers. + +use std::sync::atomic::{AtomicU64, Ordering}; + +static NEXT_HANDLE: AtomicU64 = AtomicU64::new(1); + +/// An opaque handle returned by the FFI layer. +#[repr(C)] +#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)] +pub struct FfiHandle { + pub id: u64, +} + +impl FfiHandle { + /// Allocate a fresh, unique handle. + pub fn next() -> Self { + Self { + id: NEXT_HANDLE.fetch_add(1, Ordering::Relaxed), + } + } +} diff --git a/contextvm-ffi/src/kv.rs b/contextvm-ffi/src/kv.rs new file mode 100644 index 0000000..ee52a5c --- /dev/null +++ b/contextvm-ffi/src/kv.rs @@ -0,0 +1,30 @@ +//! Global key-value store that maps FFI handles to their underlying Rust objects. + +use std::any::Any; +use std::collections::HashMap; +use std::sync::{Arc, LazyLock, Mutex}; + +use crate::handle::FfiHandle; + +static STORE: LazyLock>>> = + LazyLock::new(|| Mutex::new(HashMap::new())); + +/// Insert a value and return its handle. +pub fn insert(value: T) -> FfiHandle { + let handle = FfiHandle::next(); + let mut store = STORE.lock().unwrap(); + store.insert(handle.id, Arc::new(value)); + handle +} + +/// Retrieve a typed handle. +pub fn get(handle: FfiHandle) -> Option> { + let store = STORE.lock().unwrap(); + let value = Arc::clone(store.get(&handle.id)?); + value.downcast::().ok() +} + +/// Remove a handle from the store, dropping the object. +pub fn remove(handle: FfiHandle) -> bool { + STORE.lock().unwrap().remove(&handle.id).is_some() +} diff --git a/contextvm-ffi/src/lib.rs b/contextvm-ffi/src/lib.rs new file mode 100644 index 0000000..d4474e9 --- /dev/null +++ b/contextvm-ffi/src/lib.rs @@ -0,0 +1,23 @@ +// ─── ContextVM FFI — Flat C API + UniFFI for Python/Swift/Kotlin ─── +// +// This crate exposes: +// 1. A flat `#[no_mangle] extern "C"` surface for direct C interop +// (Swift via C headers, Kotlin via JNI/JNA, C/C++ directly) +// 2. UniFFI proc-macro definitions for Python and as an alternative +// to hand-written Swift/Kotlin bindings +// +// All async work is driven on an internal global tokio runtime so +// callers never need to manage an async runtime. + +mod builders; +mod channel; +mod discovery; +mod error; +mod handle; +mod kv; +mod runtime; +mod types; +mod uniffi_types; + +// UniFFI scaffolding — must be at crate root, after all types it references. +uniffi::setup_scaffolding!(); diff --git a/contextvm-ffi/src/runtime.rs b/contextvm-ffi/src/runtime.rs new file mode 100644 index 0000000..3355c0b --- /dev/null +++ b/contextvm-ffi/src/runtime.rs @@ -0,0 +1,14 @@ +//! Global tokio runtime shared across all FFI calls. +//! +// The runtime is lazily initialized on first use and never shut down. +//! This avoids needing the caller to manage a runtime lifecycle. + +use std::sync::OnceLock; +use tokio::runtime::Runtime; + +static RUNTIME: OnceLock = OnceLock::new(); + +/// Return a reference to the global tokio runtime. +pub fn global_runtime() -> &'static Runtime { + RUNTIME.get_or_init(|| Runtime::new().expect("failed to create global tokio runtime for FFI")) +} diff --git a/contextvm-ffi/src/types.rs b/contextvm-ffi/src/types.rs new file mode 100644 index 0000000..a7b4209 --- /dev/null +++ b/contextvm-ffi/src/types.rs @@ -0,0 +1,918 @@ +//! FFI-exposed types and flat C API functions. +//! +//! This module defines the FFI-safe struct mirrors, `#[no_mangle] extern "C"` +//! functions for key management, relay pool, discovery, encryption, and utility +//! operations. The channel-based transport APIs live in `channel.rs`. + +use crate::error::{set_error, ErrorCode, FfiError}; +use crate::handle::FfiHandle; +use crate::kv; +use crate::runtime::global_runtime; + +use std::ffi::{CStr, CString}; +use std::os::raw::c_char; +use std::ptr; + +// ─── FFI-safe struct mirrors ─────────────────────────────────────────── + +/// Encryption mode. +#[repr(C)] +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum EncryptionMode { + Optional = 0, + Required = 1, + Disabled = 2, +} + +impl From for contextvm_sdk::EncryptionMode { + fn from(m: EncryptionMode) -> Self { + match m { + EncryptionMode::Optional => contextvm_sdk::EncryptionMode::Optional, + EncryptionMode::Required => contextvm_sdk::EncryptionMode::Required, + EncryptionMode::Disabled => contextvm_sdk::EncryptionMode::Disabled, + } + } +} + +/// Gift-wrap mode (CEP-19). +#[repr(C)] +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum GiftWrapMode { + Optional = 0, + Ephemeral = 1, + Persistent = 2, +} + +impl From for contextvm_sdk::GiftWrapMode { + fn from(m: GiftWrapMode) -> Self { + match m { + GiftWrapMode::Optional => contextvm_sdk::GiftWrapMode::Optional, + GiftWrapMode::Ephemeral => contextvm_sdk::GiftWrapMode::Ephemeral, + GiftWrapMode::Persistent => contextvm_sdk::GiftWrapMode::Persistent, + } + } +} + +/// JSON-RPC message type discriminator. +#[repr(C)] +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum JsonRpcType { + Request = 0, + Response = 1, + ErrorResponse = 2, + Notification = 3, +} + +/// An FFI-safe JSON-RPC message. +#[repr(C)] +#[derive(Debug)] +pub struct FfiJsonRpcMessage { + pub msg_type: JsonRpcType, + pub payload_json: *mut c_char, + pub method: *mut c_char, + pub id: *mut c_char, +} + +/// An FFI-safe incoming request (server-side). +#[repr(C)] +#[derive(Debug)] +pub struct FfiIncomingRequest { + pub message: FfiJsonRpcMessage, + pub client_pubkey: *mut c_char, + pub event_id: *mut c_char, + pub is_encrypted: bool, +} + +/// A discovered server announcement. +#[repr(C)] +#[derive(Debug)] +pub struct FfiServerAnnouncement { + pub pubkey: *mut c_char, + pub name: *mut c_char, + pub version: *mut c_char, + pub picture: *mut c_char, + pub about: *mut c_char, + pub website: *mut c_char, + pub event_id: *mut c_char, +} + +/// A discovered MCP tool and provider metadata. +#[repr(C)] +#[derive(Debug)] +pub struct FfiDiscoveredTool { + pub provider_pubkey: *mut c_char, + pub provider_display_name: *mut c_char, + pub provider_name: *mut c_char, + pub provider_about: *mut c_char, + pub provider_picture: *mut c_char, + pub provider_nip05: *mut c_char, + pub tool_name: *mut c_char, + pub description: *mut c_char, + pub schema_json: *mut c_char, +} + +/// Nostr profile metadata for a provider. +#[repr(C)] +#[derive(Debug)] +pub struct FfiProviderProfile { + pub pubkey: *mut c_char, + pub name: *mut c_char, + pub about: *mut c_char, + pub picture: *mut c_char, + pub nip05: *mut c_char, +} + +/// Server transport config for FFI. +#[repr(C)] +#[derive(Debug)] +pub struct FfiServerConfig { + pub relay_urls: *mut *mut c_char, + pub relay_url_count: usize, + pub encryption_mode: EncryptionMode, + pub gift_wrap_mode: GiftWrapMode, + pub is_announced_server: bool, + pub server_name: *mut c_char, + pub server_version: *mut c_char, + pub server_picture: *mut c_char, + pub server_about: *mut c_char, + pub server_website: *mut c_char, + pub allowed_pubkeys: *mut *mut c_char, + pub allowed_pubkey_count: usize, + pub session_timeout_secs: u64, + pub cleanup_interval_secs: u64, +} + +/// Client transport config for FFI. +#[repr(C)] +#[derive(Debug)] +pub struct FfiClientConfig { + pub relay_urls: *mut *mut c_char, + pub relay_url_count: usize, + pub server_pubkey: *mut c_char, + pub encryption_mode: EncryptionMode, + pub gift_wrap_mode: GiftWrapMode, + pub is_stateless: bool, + pub timeout_secs: u64, +} + +// ─── Internal conversion helpers ─────────────────────────────────────── + +pub fn c_str_to_string(ptr: *const c_char) -> Option { + if ptr.is_null() { + return None; + } + unsafe { CStr::from_ptr(ptr).to_str().ok().map(String::from) } +} + +pub fn string_to_c(s: String) -> *mut c_char { + CString::new(s).unwrap_or_default().into_raw() +} + +pub fn opt_string_to_c(s: Option) -> *mut c_char { + s.map(string_to_c).unwrap_or(ptr::null_mut()) +} + +pub fn c_str_array_to_vec(ptr: *mut *mut c_char, count: usize) -> Vec { + if ptr.is_null() || count == 0 { + return Vec::new(); + } + unsafe { + let slice = std::slice::from_raw_parts(ptr, count); + slice.iter().filter_map(|&p| c_str_to_string(p)).collect() + } +} + +/// Convert an SDK `JsonRpcMessage` to the FFI representation. +pub fn message_to_ffi(msg: &contextvm_sdk::JsonRpcMessage) -> FfiJsonRpcMessage { + let json_str = serde_json::to_string(msg).unwrap_or_default(); + let msg_type = match msg { + contextvm_sdk::JsonRpcMessage::Request(_) => JsonRpcType::Request, + contextvm_sdk::JsonRpcMessage::Response(_) => JsonRpcType::Response, + contextvm_sdk::JsonRpcMessage::ErrorResponse(_) => JsonRpcType::ErrorResponse, + contextvm_sdk::JsonRpcMessage::Notification(_) => JsonRpcType::Notification, + }; + FfiJsonRpcMessage { + msg_type, + payload_json: string_to_c(json_str), + method: opt_string_to_c(msg.method().map(String::from)), + id: opt_string_to_c(msg.id().map(|v| v.to_string())), + } +} + +// ─── Free functions ──────────────────────────────────────────────────── + +#[no_mangle] +pub extern "C" fn cvm_string_free(s: *mut c_char) { + if !s.is_null() { + unsafe { + let _ = CString::from_raw(s); + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_message_free(msg: FfiJsonRpcMessage) { + cvm_string_free(msg.payload_json); + cvm_string_free(msg.method); + cvm_string_free(msg.id); +} + +#[no_mangle] +pub extern "C" fn cvm_incoming_request_free(req: FfiIncomingRequest) { + cvm_message_free(req.message); + cvm_string_free(req.client_pubkey); + cvm_string_free(req.event_id); +} + +#[no_mangle] +pub extern "C" fn cvm_announcements_free(announcements: *mut FfiServerAnnouncement, count: usize) { + if announcements.is_null() { + return; + } + unsafe { + let slice = std::slice::from_raw_parts_mut(announcements, count); + for ann in slice.iter_mut() { + cvm_string_free(ann.pubkey); + cvm_string_free(ann.name); + cvm_string_free(ann.version); + cvm_string_free(ann.picture); + cvm_string_free(ann.about); + cvm_string_free(ann.website); + cvm_string_free(ann.event_id); + } + let _ = Vec::from_raw_parts(announcements, count, count); + } +} + +#[no_mangle] +pub extern "C" fn cvm_discovered_tools_free(tools: *mut FfiDiscoveredTool, count: usize) { + if tools.is_null() { + return; + } + unsafe { + let slice = std::slice::from_raw_parts_mut(tools, count); + for tool in slice.iter_mut() { + cvm_string_free(tool.provider_pubkey); + cvm_string_free(tool.provider_display_name); + cvm_string_free(tool.provider_name); + cvm_string_free(tool.provider_about); + cvm_string_free(tool.provider_picture); + cvm_string_free(tool.provider_nip05); + cvm_string_free(tool.tool_name); + cvm_string_free(tool.description); + cvm_string_free(tool.schema_json); + } + let _ = Vec::from_raw_parts(tools, count, count); + } +} + +#[no_mangle] +pub extern "C" fn cvm_provider_profiles_free(profiles: *mut FfiProviderProfile, count: usize) { + if profiles.is_null() { + return; + } + unsafe { + let slice = std::slice::from_raw_parts_mut(profiles, count); + for profile in slice.iter_mut() { + cvm_string_free(profile.pubkey); + cvm_string_free(profile.name); + cvm_string_free(profile.about); + cvm_string_free(profile.picture); + cvm_string_free(profile.nip05); + } + let _ = Vec::from_raw_parts(profiles, count, count); + } +} + +// ─── Signer / Key management ─────────────────────────────────────────── + +#[no_mangle] +pub extern "C" fn cvm_keys_generate(_error: *mut *mut FfiError) -> FfiHandle { + kv::insert(contextvm_sdk::signer::generate()) +} + +#[no_mangle] +pub extern "C" fn cvm_keys_from_secret_key( + sk: *const c_char, + error: *mut *mut FfiError, +) -> FfiHandle { + let sk_str = match c_str_to_string(sk) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null secret key string".into(), + }, + ); + return FfiHandle { id: 0 }; + } + }; + match contextvm_sdk::signer::from_sk(&sk_str) { + Ok(keys) => kv::insert(keys), + Err(e) => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: e.to_string(), + }, + ); + FfiHandle { id: 0 } + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_keys_public_key(handle: FfiHandle, error: *mut *mut FfiError) -> *mut c_char { + let guard = kv::get::(handle); + match guard { + Some(keys) => string_to_c(keys.public_key().to_hex()), + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid key handle".into(), + }, + ); + ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_keys_secret_key(handle: FfiHandle, error: *mut *mut FfiError) -> *mut c_char { + let guard = kv::get::(handle); + match guard { + Some(keys) => string_to_c(keys.secret_key().to_secret_hex()), + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid key handle".into(), + }, + ); + ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_keys_free(handle: FfiHandle) { + kv::remove(handle); +} + +// ─── Relay Pool ──────────────────────────────────────────────────────── + +#[no_mangle] +pub extern "C" fn cvm_relay_pool_new( + keys_handle: FfiHandle, + error: *mut *mut FfiError, +) -> FfiHandle { + let keys = match kv::get::(keys_handle) { + Some(k) => k.as_ref().clone(), + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid key handle".into(), + }, + ); + return FfiHandle { id: 0 }; + } + }; + match global_runtime().block_on(contextvm_sdk::RelayPool::new(keys)) { + Ok(p) => kv::insert(p), + Err(e) => { + set_error(error, e.into()); + FfiHandle { id: 0 } + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_relay_pool_connect( + pool_handle: FfiHandle, + urls: *mut *mut c_char, + url_count: usize, + error: *mut *mut FfiError, +) -> bool { + let guard = kv::get::(pool_handle); + let pool = match guard { + Some(p) => p, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid pool handle".into(), + }, + ); + return false; + } + }; + let url_vec = c_str_array_to_vec(urls, url_count); + match global_runtime().block_on(pool.connect(&url_vec)) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_relay_pool_disconnect( + pool_handle: FfiHandle, + error: *mut *mut FfiError, +) -> bool { + let guard = kv::get::(pool_handle); + let pool = match guard { + Some(p) => p, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid pool handle".into(), + }, + ); + return false; + } + }; + match global_runtime().block_on(pool.disconnect()) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_relay_pool_free(handle: FfiHandle) { + kv::remove(handle); +} + +// ─── Discovery ───────────────────────────────────────────────────────── + +#[no_mangle] +pub extern "C" fn cvm_discover_servers( + pool_handle: FfiHandle, + relay_urls: *mut *mut c_char, + url_count: usize, + out_count: *mut usize, + error: *mut *mut FfiError, +) -> *mut FfiServerAnnouncement { + let guard = kv::get::(pool_handle); + let pool = match guard { + Some(p) => p, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid pool handle".into(), + }, + ); + return ptr::null_mut(); + } + }; + let urls = c_str_array_to_vec(relay_urls, url_count); + let client = pool.client(); + + let result = global_runtime() + .block_on(async { contextvm_sdk::discovery::discover_servers(client, &urls).await }); + + let announcements = match result { + Ok(a) => a, + Err(e) => { + set_error(error, e.into()); + return ptr::null_mut(); + } + }; + + let count = announcements.len(); + let ffi_announcements: Vec = announcements + .into_iter() + .map(|a| FfiServerAnnouncement { + pubkey: string_to_c(a.pubkey), + name: opt_string_to_c(a.server_info.name), + version: opt_string_to_c(a.server_info.version), + picture: opt_string_to_c(a.server_info.picture), + about: opt_string_to_c(a.server_info.about), + website: opt_string_to_c(a.server_info.website), + event_id: string_to_c(a.event_id.to_hex()), + }) + .collect(); + + unsafe { + if !out_count.is_null() { + *out_count = count; + } + } + + let mut ffi_announcements = ffi_announcements; + let ptr = ffi_announcements.as_mut_ptr(); + std::mem::forget(ffi_announcements); + ptr +} + +#[no_mangle] +pub extern "C" fn cvm_discover_tools( + pool_handle: FfiHandle, + provider_pubkey_hex: *const c_char, + provider_display_name: *const c_char, + relay_urls: *mut *mut c_char, + url_count: usize, + out_count: *mut usize, + error: *mut *mut FfiError, +) -> *mut FfiDiscoveredTool { + let guard = kv::get::(pool_handle); + let pool = match guard { + Some(p) => p, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid pool handle".into(), + }, + ); + return ptr::null_mut(); + } + }; + let provider_pubkey = match c_str_to_string(provider_pubkey_hex) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null provider pubkey".into(), + }, + ); + return ptr::null_mut(); + } + }; + let provider_display_name = c_str_to_string(provider_display_name); + let urls = c_str_array_to_vec(relay_urls, url_count); + let client = pool.client(); + + let result = global_runtime().block_on(async { + crate::discovery::discover_tools(client, &provider_pubkey, provider_display_name, &urls) + .await + }); + + match result { + Ok(tools) => tools_to_ffi_array(tools, out_count), + Err(e) => { + set_error(error, e.into()); + ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_discover_all_tools( + pool_handle: FfiHandle, + relay_urls: *mut *mut c_char, + url_count: usize, + out_count: *mut usize, + error: *mut *mut FfiError, +) -> *mut FfiDiscoveredTool { + let guard = kv::get::(pool_handle); + let pool = match guard { + Some(p) => p, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid pool handle".into(), + }, + ); + return ptr::null_mut(); + } + }; + let urls = c_str_array_to_vec(relay_urls, url_count); + let client = pool.client(); + + let result = global_runtime() + .block_on(async { crate::discovery::discover_all_tools(client, &urls).await }); + + match result { + Ok(tools) => tools_to_ffi_array(tools, out_count), + Err(e) => { + set_error(error, e.into()); + ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_fetch_provider_profiles( + pool_handle: FfiHandle, + provider_pubkeys: *mut *mut c_char, + provider_pubkey_count: usize, + relay_urls: *mut *mut c_char, + url_count: usize, + out_count: *mut usize, + error: *mut *mut FfiError, +) -> *mut FfiProviderProfile { + let guard = kv::get::(pool_handle); + let pool = match guard { + Some(p) => p, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid pool handle".into(), + }, + ); + return ptr::null_mut(); + } + }; + let pubkeys = c_str_array_to_vec(provider_pubkeys, provider_pubkey_count); + let urls = c_str_array_to_vec(relay_urls, url_count); + let client = pool.client(); + + let result = global_runtime().block_on(async { + crate::discovery::fetch_provider_profiles(client, &pubkeys, &urls).await + }); + + match result { + Ok(profiles) => profiles_to_ffi_array(profiles.into_values().collect(), out_count), + Err(e) => { + set_error(error, e.into()); + ptr::null_mut() + } + } +} + +// ─── Encryption ──────────────────────────────────────────────────────── + +#[no_mangle] +pub extern "C" fn cvm_encrypt_nip44( + keys_handle: FfiHandle, + recipient_pubkey_hex: *const c_char, + plaintext: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let keys = match kv::get::(keys_handle) { + Some(k) => k.as_ref().clone(), + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid key handle".into(), + }, + ); + return ptr::null_mut(); + } + }; + + let pk_str = match c_str_to_string(recipient_pubkey_hex) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null recipient pubkey".into(), + }, + ); + return ptr::null_mut(); + } + }; + let pk = match contextvm_sdk::signer::PublicKey::from_hex(&pk_str) { + Ok(pk) => pk, + Err(e) => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: format!("invalid pubkey: {e}"), + }, + ); + return ptr::null_mut(); + } + }; + let pt = match c_str_to_string(plaintext) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null plaintext".into(), + }, + ); + return ptr::null_mut(); + } + }; + + match global_runtime().block_on(contextvm_sdk::encryption::encrypt_nip44(&keys, &pk, &pt)) { + Ok(ct) => string_to_c(ct), + Err(e) => { + set_error(error, e.into()); + ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_decrypt_nip44( + keys_handle: FfiHandle, + sender_pubkey_hex: *const c_char, + ciphertext: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let keys = match kv::get::(keys_handle) { + Some(k) => k.as_ref().clone(), + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid key handle".into(), + }, + ); + return ptr::null_mut(); + } + }; + + let pk_str = match c_str_to_string(sender_pubkey_hex) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null sender pubkey".into(), + }, + ); + return ptr::null_mut(); + } + }; + let pk = match contextvm_sdk::signer::PublicKey::from_hex(&pk_str) { + Ok(pk) => pk, + Err(e) => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: format!("invalid pubkey: {e}"), + }, + ); + return ptr::null_mut(); + } + }; + let ct = match c_str_to_string(ciphertext) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null ciphertext".into(), + }, + ); + return ptr::null_mut(); + } + }; + + match global_runtime().block_on(contextvm_sdk::encryption::decrypt_nip44(&keys, &pk, &ct)) { + Ok(pt) => string_to_c(pt), + Err(e) => { + set_error(error, e.into()); + ptr::null_mut() + } + } +} + +// ─── Utility ─────────────────────────────────────────────────────────── + +#[no_mangle] +pub extern "C" fn cvm_version() -> *mut c_char { + string_to_c(env!("CARGO_PKG_VERSION").to_string()) +} + +#[no_mangle] +pub extern "C" fn cvm_pubkey_hex_to_npub( + pubkey_hex: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let pubkey = match c_str_to_string(pubkey_hex) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null pubkey".into(), + }, + ); + return ptr::null_mut(); + } + }; + + match crate::discovery::pubkey_hex_to_npub(&pubkey) { + Ok(npub) => string_to_c(npub), + Err(e) => { + set_error(error, e.into()); + ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_error_free(e: *mut FfiError) { + if !e.is_null() { + unsafe { + let _ = Box::from_raw(e); + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_error_message(e: *const FfiError) -> *mut c_char { + if e.is_null() { + return ptr::null_mut(); + } + unsafe { string_to_c((*e).message.clone()) } +} + +#[no_mangle] +pub extern "C" fn cvm_error_code(e: *const FfiError) -> ErrorCode { + if e.is_null() { + return ErrorCode::Ok; + } + unsafe { (*e).code } +} + +fn tools_to_ffi_array( + tools: Vec, + out_count: *mut usize, +) -> *mut FfiDiscoveredTool { + let count = tools.len(); + let ffi_tools: Vec = tools + .into_iter() + .map(|tool| FfiDiscoveredTool { + provider_pubkey: string_to_c(tool.provider_pubkey), + provider_display_name: opt_string_to_c(tool.provider_display_name), + provider_name: opt_string_to_c(tool.provider_name), + provider_about: opt_string_to_c(tool.provider_about), + provider_picture: opt_string_to_c(tool.provider_picture), + provider_nip05: opt_string_to_c(tool.provider_nip05), + tool_name: string_to_c(tool.tool_name), + description: string_to_c(tool.description), + schema_json: string_to_c(tool.schema_json), + }) + .collect(); + + unsafe { + if !out_count.is_null() { + *out_count = count; + } + } + + let mut ffi_tools = ffi_tools; + let ptr = ffi_tools.as_mut_ptr(); + std::mem::forget(ffi_tools); + ptr +} + +fn profiles_to_ffi_array( + profiles: Vec, + out_count: *mut usize, +) -> *mut FfiProviderProfile { + let count = profiles.len(); + let ffi_profiles: Vec = profiles + .into_iter() + .map(|profile| FfiProviderProfile { + pubkey: string_to_c(profile.pubkey), + name: opt_string_to_c(profile.name), + about: opt_string_to_c(profile.about), + picture: opt_string_to_c(profile.picture), + nip05: opt_string_to_c(profile.nip05), + }) + .collect(); + + unsafe { + if !out_count.is_null() { + *out_count = count; + } + } + + let mut ffi_profiles = ffi_profiles; + let ptr = ffi_profiles.as_mut_ptr(); + std::mem::forget(ffi_profiles); + ptr +} diff --git a/contextvm-ffi/src/uniffi_types.rs b/contextvm-ffi/src/uniffi_types.rs new file mode 100644 index 0000000..3a17f58 --- /dev/null +++ b/contextvm-ffi/src/uniffi_types.rs @@ -0,0 +1,721 @@ +//! UniFFI-compatible types and high-level object-oriented API. +//! +//! These types are exposed via UniFFI proc-macros and provide a more ergonomic +//! interface than the flat C API. They are designed for Python, Swift, and +//! Kotlin consumers. + +use crate::builders::{ + build_sdk_client_config_from_fields, build_sdk_server_config_from_fields, ServerConfigParts, +}; +use crate::error::FfiError; +use crate::runtime::global_runtime; +use std::sync::Arc; +use std::time::Duration; + +// ─── Enum mirrors for UniFFI ─────────────────────────────────────────── + +/// Encryption mode. +#[derive(Debug, Clone, Copy, uniffi::Enum)] +pub enum EncryptionMode { + Optional, + Required, + Disabled, +} + +/// Gift-wrap mode (CEP-19). +#[derive(Debug, Clone, Copy, uniffi::Enum)] +pub enum GiftWrapMode { + Optional, + Ephemeral, + Persistent, +} + +/// JSON-RPC message type. +#[derive(Debug, Clone, uniffi::Enum)] +pub enum JsonRpcMessageType { + Request, + Response, + ErrorResponse, + Notification, +} + +// ─── Record types for UniFFI ─────────────────────────────────────────── + +/// A JSON-RPC message. +#[derive(Debug, Clone, uniffi::Record)] +pub struct JsonRpcMessage { + pub msg_type: JsonRpcMessageType, + pub payload_json: String, + pub method: String, + pub id: String, +} + +/// An incoming MCP request (server-side). +#[derive(Debug, Clone, uniffi::Record)] +pub struct IncomingRequest { + pub message: JsonRpcMessage, + pub client_pubkey: String, + pub event_id: String, + pub is_encrypted: bool, +} + +/// A discovered server announcement. +#[derive(Debug, Clone, uniffi::Record)] +pub struct ServerAnnouncement { + pub pubkey: String, + pub name: Option, + pub version: Option, + pub picture: Option, + pub about: Option, + pub website: Option, + pub event_id: String, +} + +/// Nostr profile metadata for a provider. +#[derive(Debug, Clone, uniffi::Record)] +pub struct ProviderProfile { + pub pubkey: String, + pub name: Option, + pub about: Option, + pub picture: Option, + pub nip05: Option, +} + +/// A discovered MCP tool and provider metadata used by foreign clients. +#[derive(Debug, Clone, uniffi::Record)] +pub struct DiscoveredTool { + pub provider_pubkey: String, + pub provider_display_name: Option, + pub provider_name: Option, + pub provider_about: Option, + pub provider_picture: Option, + pub provider_nip05: Option, + pub tool_name: String, + pub description: String, + pub schema_json: String, +} + +/// Server transport configuration. +#[derive(Debug, Clone, uniffi::Record)] +pub struct ServerConfig { + pub relay_urls: Vec, + pub encryption_mode: EncryptionMode, + pub gift_wrap_mode: GiftWrapMode, + pub is_announced_server: bool, + pub server_name: Option, + pub server_version: Option, + pub server_picture: Option, + pub server_about: Option, + pub server_website: Option, + pub allowed_pubkeys: Vec, + pub session_timeout_secs: u64, + pub cleanup_interval_secs: u64, +} + +impl Default for ServerConfig { + fn default() -> Self { + Self { + relay_urls: vec!["wss://relay.damus.io".to_string()], + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + is_announced_server: false, + server_name: None, + server_version: None, + server_picture: None, + server_about: None, + server_website: None, + allowed_pubkeys: vec![], + session_timeout_secs: 300, + cleanup_interval_secs: 60, + } + } +} + +/// Client transport configuration. +#[derive(Debug, Clone, uniffi::Record)] +pub struct ClientConfig { + pub relay_urls: Vec, + pub server_pubkey: String, + pub encryption_mode: EncryptionMode, + pub gift_wrap_mode: GiftWrapMode, + pub is_stateless: bool, + pub timeout_secs: u64, +} + +impl Default for ClientConfig { + fn default() -> Self { + Self { + relay_urls: vec![], + server_pubkey: String::new(), + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + is_stateless: false, + timeout_secs: 30, + } + } +} + +// ─── Conversion helpers ──────────────────────────────────────────────── + +fn sdk_encryption_mode(m: EncryptionMode) -> contextvm_sdk::EncryptionMode { + match m { + EncryptionMode::Optional => contextvm_sdk::EncryptionMode::Optional, + EncryptionMode::Required => contextvm_sdk::EncryptionMode::Required, + EncryptionMode::Disabled => contextvm_sdk::EncryptionMode::Disabled, + } +} + +fn sdk_gift_wrap_mode(m: GiftWrapMode) -> contextvm_sdk::GiftWrapMode { + match m { + GiftWrapMode::Optional => contextvm_sdk::GiftWrapMode::Optional, + GiftWrapMode::Ephemeral => contextvm_sdk::GiftWrapMode::Ephemeral, + GiftWrapMode::Persistent => contextvm_sdk::GiftWrapMode::Persistent, + } +} + +fn message_to_uniffi(msg: &contextvm_sdk::JsonRpcMessage) -> JsonRpcMessage { + let msg_type = match msg { + contextvm_sdk::JsonRpcMessage::Request(_) => JsonRpcMessageType::Request, + contextvm_sdk::JsonRpcMessage::Response(_) => JsonRpcMessageType::Response, + contextvm_sdk::JsonRpcMessage::ErrorResponse(_) => JsonRpcMessageType::ErrorResponse, + contextvm_sdk::JsonRpcMessage::Notification(_) => JsonRpcMessageType::Notification, + }; + + JsonRpcMessage { + msg_type, + payload_json: serde_json::to_string(msg).unwrap_or_default(), + method: msg.method().map(String::from).unwrap_or_default(), + id: msg.id().map(|v| v.to_string()).unwrap_or_default(), + } +} + +fn incoming_to_uniffi(req: &contextvm_sdk::IncomingRequest) -> IncomingRequest { + IncomingRequest { + message: message_to_uniffi(&req.message), + client_pubkey: req.client_pubkey.clone(), + event_id: req.event_id.clone(), + is_encrypted: req.is_encrypted, + } +} + +fn parse_json_rpc(json: &str) -> Result { + serde_json::from_str(json).map_err(|e| FfiError { + code: crate::error::ErrorCode::Serialization, + message: e.to_string(), + }) +} + +fn tool_to_uniffi(tool: crate::discovery::DiscoveredToolRecord) -> DiscoveredTool { + DiscoveredTool { + provider_pubkey: tool.provider_pubkey, + provider_display_name: tool.provider_display_name, + provider_name: tool.provider_name, + provider_about: tool.provider_about, + provider_picture: tool.provider_picture, + provider_nip05: tool.provider_nip05, + tool_name: tool.tool_name, + description: tool.description, + schema_json: tool.schema_json, + } +} + +fn profile_to_uniffi(profile: crate::discovery::ProviderProfileRecord) -> ProviderProfile { + ProviderProfile { + pubkey: profile.pubkey, + name: profile.name, + about: profile.about, + picture: profile.picture, + nip05: profile.nip05, + } +} + +// ─── High-level UniFFI objects ───────────────────────────────────────── + +/// A Nostr keypair. +#[derive(uniffi::Object)] +pub struct Keys { + inner: contextvm_sdk::signer::Keys, +} + +#[uniffi::export] +impl Keys { + /// Generate a new random keypair. + #[uniffi::constructor] + pub fn generate() -> Self { + Self { + inner: contextvm_sdk::signer::generate(), + } + } + + /// Create keys from a secret key (hex or nsec/bech32). + #[uniffi::constructor] + pub fn from_secret_key(sk: &str) -> Result { + contextvm_sdk::signer::from_sk(sk) + .map(|inner| Self { inner }) + .map_err(|e| FfiError { + code: crate::error::ErrorCode::Other, + message: e.to_string(), + }) + } + + /// Get the public key (hex). + pub fn public_key(&self) -> String { + self.inner.public_key().to_hex() + } + + /// Get the secret key (hex). + pub fn secret_key(&self) -> String { + self.inner.secret_key().to_secret_hex() + } +} + +/// A relay pool for Nostr connectivity. +#[derive(uniffi::Object)] +pub struct RelayPool { + inner: contextvm_sdk::RelayPool, +} + +#[uniffi::export] +impl RelayPool { + /// Create a new relay pool. + #[uniffi::constructor] + pub fn new(keys: &Keys) -> Result { + global_runtime() + .block_on(contextvm_sdk::RelayPool::new(keys.inner.clone())) + .map(|inner| Self { inner }) + .map_err(FfiError::from) + } + + /// Connect to relays. + pub fn connect(&self, relay_urls: Vec) -> Result<(), FfiError> { + global_runtime() + .block_on(self.inner.connect(&relay_urls)) + .map_err(FfiError::from) + } + + /// Disconnect from all relays. + pub fn disconnect(&self) -> Result<(), FfiError> { + global_runtime() + .block_on(self.inner.disconnect()) + .map_err(FfiError::from) + } +} + +/// A server transport that receives MCP requests over Nostr. +#[derive(uniffi::Object)] +pub struct Server { + transport: Arc>, + receiver: Arc< + tokio::sync::Mutex>, + >, +} + +#[uniffi::export] +impl Server { + /// Create and start a server transport. + #[uniffi::constructor] + pub fn new(keys: &Keys, config: &ServerConfig) -> Result { + let sdk_config = build_sdk_server_config_from_fields(ServerConfigParts { + relay_urls: config.relay_urls.clone(), + encryption_mode: sdk_encryption_mode(config.encryption_mode), + gift_wrap_mode: sdk_gift_wrap_mode(config.gift_wrap_mode), + server_name: config.server_name.clone(), + server_version: config.server_version.clone(), + server_picture: config.server_picture.clone(), + server_about: config.server_about.clone(), + server_website: config.server_website.clone(), + is_announced_server: config.is_announced_server, + allowed_pubkeys: config.allowed_pubkeys.clone(), + session_timeout_secs: config.session_timeout_secs, + cleanup_interval_secs: config.cleanup_interval_secs, + }); + + global_runtime() + .block_on(async { + let mut transport = + contextvm_sdk::NostrServerTransport::new(keys.inner.clone(), sdk_config) + .await?; + transport.start().await?; + let receiver = transport + .take_message_receiver() + .ok_or_else(|| contextvm_sdk::Error::Other("receiver already taken".into()))?; + Ok::<_, contextvm_sdk::Error>(Self { + transport: Arc::new(tokio::sync::Mutex::new(transport)), + receiver: Arc::new(tokio::sync::Mutex::new(receiver)), + }) + }) + .map_err(FfiError::from) + } + + /// Receive the next incoming request. Blocks until one is available. + pub fn recv(&self) -> Result { + let rx = self.receiver.clone(); + global_runtime() + .block_on(async { + let mut guard = rx.lock().await; + guard.recv().await + }) + .map(|req| incoming_to_uniffi(&req)) + .ok_or_else(|| FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }) + } + + /// Send a response for a given event ID. + pub fn send_response(&self, event_id: &str, payload_json: &str) -> Result<(), FfiError> { + let message = parse_json_rpc(payload_json)?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.send_response(event_id, message).await + }) + .map_err(FfiError::from) + } + + /// Publish server announcement. + pub fn announce(&self) -> Result<(), FfiError> { + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.announce().await + }) + .map(|_| ()) + .map_err(FfiError::from) + } + + /// Close the server transport. + pub fn close(&self) -> Result<(), FfiError> { + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let mut guard = transport.lock().await; + guard.close().await + }) + .map_err(FfiError::from) + } +} + +/// A client transport that sends MCP requests over Nostr. +#[derive(uniffi::Object)] +pub struct Client { + transport: Arc>, + receiver: Arc< + tokio::sync::Mutex>, + >, +} + +#[uniffi::export] +impl Client { + /// Create and start a client transport. + #[uniffi::constructor] + pub fn new(keys: &Keys, config: &ClientConfig) -> Result { + let sdk_config = build_sdk_client_config_from_fields( + config.relay_urls.clone(), + config.server_pubkey.clone(), + sdk_encryption_mode(config.encryption_mode), + sdk_gift_wrap_mode(config.gift_wrap_mode), + config.is_stateless, + config.timeout_secs, + ); + + global_runtime() + .block_on(async { + let mut transport = + contextvm_sdk::NostrClientTransport::new(keys.inner.clone(), sdk_config) + .await?; + transport.start().await?; + let receiver = transport + .take_message_receiver() + .ok_or_else(|| contextvm_sdk::Error::Other("receiver already taken".into()))?; + Ok::<_, contextvm_sdk::Error>(Self { + transport: Arc::new(tokio::sync::Mutex::new(transport)), + receiver: Arc::new(tokio::sync::Mutex::new(receiver)), + }) + }) + .map_err(FfiError::from) + } + + /// Send a JSON-RPC message. + pub fn send(&self, payload_json: &str) -> Result<(), FfiError> { + let message = parse_json_rpc(payload_json)?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.send(&message).await + }) + .map_err(FfiError::from) + } + + /// Receive the next response. Blocks until one is available. + pub fn recv(&self) -> Result { + let rx = self.receiver.clone(); + global_runtime() + .block_on(async { + let mut guard = rx.lock().await; + guard.recv().await + }) + .map(|msg| message_to_uniffi(&msg)) + .ok_or_else(|| FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }) + } + + /// Close the client transport. + pub fn close(&self) -> Result<(), FfiError> { + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let mut guard = transport.lock().await; + guard.close().await + }) + .map_err(FfiError::from) + } +} + +/// A proxy that connects a local MCP client to a remote Nostr MCP server. +#[derive(uniffi::Object)] +pub struct Proxy { + proxy: Arc>, + receiver: Arc< + tokio::sync::Mutex>, + >, +} + +#[uniffi::export] +impl Proxy { + /// Create and start a proxy transport. + #[uniffi::constructor] + pub fn new(keys: &Keys, config: &ClientConfig) -> Result { + let sdk_config = build_sdk_client_config_from_fields( + config.relay_urls.clone(), + config.server_pubkey.clone(), + sdk_encryption_mode(config.encryption_mode), + sdk_gift_wrap_mode(config.gift_wrap_mode), + config.is_stateless, + config.timeout_secs, + ); + let proxy_config = contextvm_sdk::proxy::ProxyConfig::new(sdk_config); + + global_runtime() + .block_on(async { + let mut proxy = + contextvm_sdk::proxy::NostrMCPProxy::new(keys.inner.clone(), proxy_config) + .await?; + let receiver = proxy.start().await?; + Ok::<_, contextvm_sdk::Error>(Self { + proxy: Arc::new(tokio::sync::Mutex::new(proxy)), + receiver: Arc::new(tokio::sync::Mutex::new(receiver)), + }) + }) + .map_err(FfiError::from) + } + + /// Send a JSON-RPC message through the proxy. + pub fn send(&self, payload_json: &str) -> Result<(), FfiError> { + let message = parse_json_rpc(payload_json)?; + let proxy = self.proxy.clone(); + global_runtime() + .block_on(async { + let guard = proxy.lock().await; + guard.send(&message).await + }) + .map_err(FfiError::from) + } + + /// Receive the next response or notification. + pub fn recv(&self) -> Result { + let rx = self.receiver.clone(); + global_runtime() + .block_on(async { + let mut guard = rx.lock().await; + guard.recv().await + }) + .map(|msg| message_to_uniffi(&msg)) + .ok_or_else(|| FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }) + } + + /// Receive the next response or notification, timing out after `timeout_secs`. + pub fn recv_timeout(&self, timeout_secs: u64) -> Result { + let rx = self.receiver.clone(); + match global_runtime().block_on(async { + let mut guard = rx.lock().await; + tokio::time::timeout(Duration::from_secs(timeout_secs), guard.recv()).await + }) { + Ok(Some(msg)) => Ok(message_to_uniffi(&msg)), + Ok(None) => Err(FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }), + Err(_) => Err(FfiError { + code: crate::error::ErrorCode::Timeout, + message: "receive timed out".into(), + }), + } + } + + /// Stop the proxy transport. + pub fn stop(&self) -> Result<(), FfiError> { + let proxy = self.proxy.clone(); + global_runtime() + .block_on(async { + let mut guard = proxy.lock().await; + guard.stop().await + }) + .map_err(FfiError::from) + } +} + +/// Discovery functions. +#[derive(uniffi::Object)] +pub struct Discovery; + +#[uniffi::export] +impl Discovery { + #[uniffi::constructor] + pub fn new() -> Self { + Self + } + + /// Discover MCP servers on the given relay URLs. + pub fn discover_servers( + &self, + pool: &RelayPool, + relay_urls: Vec, + ) -> Result, FfiError> { + let client = pool.inner.client(); + global_runtime() + .block_on(async { + contextvm_sdk::discovery::discover_servers(client, &relay_urls).await + }) + .map(|announcements| { + announcements + .into_iter() + .map(|a| ServerAnnouncement { + pubkey: a.pubkey, + name: a.server_info.name, + version: a.server_info.version, + picture: a.server_info.picture, + about: a.server_info.about, + website: a.server_info.website, + event_id: a.event_id.to_hex(), + }) + .collect() + }) + .map_err(FfiError::from) + } + + /// Discover MCP tools published by a specific provider. + pub fn discover_tools( + &self, + pool: &RelayPool, + provider_pubkey: String, + provider_display_name: Option, + relay_urls: Vec, + ) -> Result, FfiError> { + let client = pool.inner.client(); + global_runtime() + .block_on(async { + crate::discovery::discover_tools( + client, + &provider_pubkey, + provider_display_name, + &relay_urls, + ) + .await + }) + .map(|tools| tools.into_iter().map(tool_to_uniffi).collect()) + .map_err(FfiError::from) + } + + /// Discover server announcements, tools, and provider profiles in one pass. + pub fn discover_all_tools( + &self, + pool: &RelayPool, + relay_urls: Vec, + ) -> Result, FfiError> { + let client = pool.inner.client(); + global_runtime() + .block_on(async { crate::discovery::discover_all_tools(client, &relay_urls).await }) + .map(|tools| tools.into_iter().map(tool_to_uniffi).collect()) + .map_err(FfiError::from) + } + + /// Fetch Nostr kind-0 provider profiles for a set of provider pubkeys. + pub fn fetch_provider_profiles( + &self, + pool: &RelayPool, + provider_pubkeys: Vec, + relay_urls: Vec, + ) -> Result, FfiError> { + let client = pool.inner.client(); + global_runtime() + .block_on(async { + crate::discovery::fetch_provider_profiles(client, &provider_pubkeys, &relay_urls) + .await + }) + .map(|profiles| profiles.into_values().map(profile_to_uniffi).collect()) + .map_err(FfiError::from) + } +} + +impl Default for Discovery { + fn default() -> Self { + Self::new() + } +} + +// ─── Top-level functions ─────────────────────────────────────────────── + +/// Get the library version. +#[uniffi::export] +pub fn version() -> String { + env!("CARGO_PKG_VERSION").to_string() +} + +/// Convert a hex public key to npub bech32. +#[uniffi::export] +pub fn pubkey_hex_to_npub(pubkey_hex: String) -> Result { + crate::discovery::pubkey_hex_to_npub(&pubkey_hex).map_err(FfiError::from) +} + +/// Helper: build a JSON-RPC request as a JSON string. +#[uniffi::export] +pub fn make_request(id: String, method: String, params: Option) -> String { + let msg = contextvm_sdk::JsonRpcMessage::Request(contextvm_sdk::JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(id), + method, + params: params.and_then(|p| serde_json::from_str(&p).ok()), + }); + serde_json::to_string(&msg).unwrap_or_default() +} + +/// Helper: build a JSON-RPC notification as a JSON string. +#[uniffi::export] +pub fn make_notification(method: String, params: Option) -> String { + let msg = contextvm_sdk::JsonRpcMessage::Notification(contextvm_sdk::JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method, + params: params.and_then(|p| serde_json::from_str(&p).ok()), + }); + serde_json::to_string(&msg).unwrap_or_default() +} + +/// Helper: build a JSON-RPC response as a JSON string. +#[uniffi::export] +pub fn make_response(id: String, result: String) -> String { + let msg = contextvm_sdk::JsonRpcMessage::Response(contextvm_sdk::JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(id), + result: serde_json::from_str(&result).unwrap_or(serde_json::json!(null)), + }); + serde_json::to_string(&msg).unwrap_or_default() +} From e6e7625817a8618a8a483ac79f2b60815a62b466 Mon Sep 17 00:00:00 2001 From: Aljaz Ceru Date: Fri, 29 May 2026 16:24:35 +0200 Subject: [PATCH 094/116] fixing minor issues, features --- contextvm-ffi/README.md | 15 + contextvm-ffi/headers/contextvm.h | 53 ++- contextvm-ffi/src/builders.rs | 467 ++++++++++++++++++++++--- contextvm-ffi/src/channel.rs | 560 ++++++++++++++++++++++++++++-- contextvm-ffi/src/types.rs | 254 +++++++++++--- contextvm-ffi/src/uniffi_types.rs | 428 ++++++++++++++++++++++- src/gateway/mod.rs | 1 + src/transport/server/mod.rs | 47 ++- 8 files changed, 1683 insertions(+), 142 deletions(-) diff --git a/contextvm-ffi/README.md b/contextvm-ffi/README.md index ed74c6b..40accba 100644 --- a/contextvm-ffi/README.md +++ b/contextvm-ffi/README.md @@ -60,6 +60,21 @@ cvm_keys_free(keys); Errors are opaque. Use `cvm_error_code`, `cvm_error_message`, and `cvm_error_free` to inspect and release them. +Mode fields in `CvmServerConfig` and `CvmClientConfig` are raw `int32_t` +values. Set them with the `CVM_ENCRYPTION_*` and `CVM_GIFTWRAP_*` constants; +invalid values are rejected with `CVM_VALIDATION`. + +## JSON Arguments + +Several parity APIs use JSON strings to represent SDK values that are not +portable C structs: + +- `profile_metadata_json`: a `ProfileMetadata` JSON object. +- `*_publish_tools/resources/prompts/resource_templates`: a JSON array of MCP + capability objects. +- `*_set_announcement_*_tags`: a JSON array of Nostr tag arrays, for example + `[["pricing","free"]]`. + ## Memory Management Rust-owned values returned through the C ABI must be released by the caller: diff --git a/contextvm-ffi/headers/contextvm.h b/contextvm-ffi/headers/contextvm.h index 6b631e1..a326cec 100644 --- a/contextvm-ffi/headers/contextvm.h +++ b/contextvm-ffi/headers/contextvm.h @@ -72,7 +72,7 @@ typedef enum { /* ─── Structs ──────────────────────────────────────────────────────── */ typedef struct { - CvmJsonRpcType msg_type; + int32_t msg_type; /* one of CvmJsonRpcType */ char *payload_json; /* owned JSON string */ char *method; /* owned, may be NULL */ char *id; /* owned, may be NULL */ @@ -115,31 +115,56 @@ typedef struct { char *nip05; /* owned, may be NULL */ } CvmProviderProfile; +typedef struct { + char *method; /* required */ + char *name; /* optional */ +} CvmCapabilityExclusion; + +typedef struct { + bool supports_encryption; + bool supports_ephemeral_encryption; + bool supports_oversized_transfer; +} CvmPeerCapabilities; + typedef struct { char **relay_urls; size_t relay_url_count; - CvmEncryptionMode encryption_mode; - CvmGiftWrapMode gift_wrap_mode; + int32_t encryption_mode; /* one of CvmEncryptionMode */ + int32_t gift_wrap_mode; /* one of CvmGiftWrapMode */ bool is_announced_server; char *server_name; /* may be NULL */ char *server_version; /* may be NULL */ char *server_picture; /* may be NULL */ char *server_about; /* may be NULL */ char *server_website; /* may be NULL */ - char **allowed_pubkeys; + char **allowed_pubkeys; /* if count > 0, pointer and entries must be non-NULL UTF-8 */ size_t allowed_pubkey_count; uint64_t session_timeout_secs; uint64_t cleanup_interval_secs; + CvmCapabilityExclusion *excluded_capabilities; + size_t excluded_capability_count; + size_t max_sessions; /* 0 keeps SDK default */ + uint64_t request_timeout_secs; /* 0 keeps SDK default */ + char **relay_list_urls; + size_t relay_list_url_count; + char **bootstrap_relay_urls; + size_t bootstrap_relay_url_count; + bool publish_relay_list; + char *profile_metadata_json; /* optional ProfileMetadata JSON object */ } CvmServerConfig; typedef struct { char **relay_urls; size_t relay_url_count; char *server_pubkey; /* required */ - CvmEncryptionMode encryption_mode; - CvmGiftWrapMode gift_wrap_mode; + int32_t encryption_mode; /* one of CvmEncryptionMode */ + int32_t gift_wrap_mode; /* one of CvmGiftWrapMode */ bool is_stateless; uint64_t timeout_secs; + char **discovery_relay_urls; + size_t discovery_relay_url_count; + char **fallback_operational_relay_urls; + size_t fallback_operational_relay_url_count; } CvmClientConfig; /* ─── Free Functions ───────────────────────────────────────────────── */ @@ -178,7 +203,17 @@ void cvm_relay_pool_free(CvmHandle handle); CvmHandle cvm_server_ch_new(CvmHandle keys_handle, CvmServerConfig config, CvmError **error); bool cvm_server_ch_recv(CvmHandle handle, CvmIncomingRequest *out_req, CvmError **error); bool cvm_server_ch_send_response(CvmHandle handle, const char *event_id, const char *payload_json, CvmError **error); +bool cvm_server_ch_send_notification(CvmHandle handle, const char *client_pubkey, const char *payload_json, const char *correlated_event_id, CvmError **error); +bool cvm_server_ch_broadcast_notification(CvmHandle handle, const char *payload_json, CvmError **error); +bool cvm_server_ch_set_announcement_extra_tags(CvmHandle handle, const char *tags_json, CvmError **error); +bool cvm_server_ch_set_announcement_pricing_tags(CvmHandle handle, const char *tags_json, CvmError **error); bool cvm_server_ch_announce(CvmHandle handle, CvmError **error); +char *cvm_server_ch_announce_event_id(CvmHandle handle, CvmError **error); +char *cvm_server_ch_publish_tools(CvmHandle handle, const char *tools_json, CvmError **error); +char *cvm_server_ch_publish_resources(CvmHandle handle, const char *resources_json, CvmError **error); +char *cvm_server_ch_publish_prompts(CvmHandle handle, const char *prompts_json, CvmError **error); +char *cvm_server_ch_publish_resource_templates(CvmHandle handle, const char *templates_json, CvmError **error); +bool cvm_server_ch_delete_announcements(CvmHandle handle, const char *reason, CvmError **error); bool cvm_server_ch_close(CvmHandle handle, CvmError **error); /* ─── Client (channel-based) ──────────────────────────────────────── */ @@ -186,6 +221,9 @@ bool cvm_server_ch_close(CvmHandle handle, CvmError **error); CvmHandle cvm_client_ch_new(CvmHandle keys_handle, CvmClientConfig config, CvmError **error); bool cvm_client_ch_send(CvmHandle handle, const char *payload_json, CvmError **error); bool cvm_client_ch_recv(CvmHandle handle, CvmJsonRpcMessage *out_msg, CvmError **error); +bool cvm_client_ch_discovered_server_capabilities(CvmHandle handle, CvmPeerCapabilities *out_caps, CvmError **error); +bool cvm_client_ch_server_supports_ephemeral_encryption(CvmHandle handle, CvmError **error); +char *cvm_client_ch_server_initialize_event_json(CvmHandle handle, CvmError **error); bool cvm_client_ch_close(CvmHandle handle, CvmError **error); /* ─── Gateway (channel-based) ─────────────────────────────────────── */ @@ -194,6 +232,8 @@ CvmHandle cvm_gateway_ch_new(CvmHandle keys_handle, CvmServerConfig config, CvmE bool cvm_gateway_ch_recv(CvmHandle handle, CvmIncomingRequest *out_req, CvmError **error); bool cvm_gateway_ch_send_response(CvmHandle handle, const char *event_id, const char *payload_json, CvmError **error); bool cvm_gateway_ch_announce(CvmHandle handle, CvmError **error); +char *cvm_gateway_ch_announce_event_id(CvmHandle handle, CvmError **error); +bool cvm_gateway_ch_is_active(CvmHandle handle, CvmError **error); bool cvm_gateway_ch_stop(CvmHandle handle, CvmError **error); /* ─── Proxy (channel-based) ───────────────────────────────────────── */ @@ -202,6 +242,7 @@ CvmHandle cvm_proxy_ch_new(CvmHandle keys_handle, CvmClientConfig config, CvmErr bool cvm_proxy_ch_send(CvmHandle handle, const char *payload_json, CvmError **error); bool cvm_proxy_ch_recv(CvmHandle handle, CvmJsonRpcMessage *out_msg, CvmError **error); bool cvm_proxy_ch_recv_timeout(CvmHandle handle, uint64_t timeout_secs, CvmJsonRpcMessage *out_msg, CvmError **error); +bool cvm_proxy_ch_is_active(CvmHandle handle, CvmError **error); bool cvm_proxy_ch_stop(CvmHandle handle, CvmError **error); /* ─── Discovery ────────────────────────────────────────────────────── */ diff --git a/contextvm-ffi/src/builders.rs b/contextvm-ffi/src/builders.rs index e6c726d..3ec2a6d 100644 --- a/contextvm-ffi/src/builders.rs +++ b/contextvm-ffi/src/builders.rs @@ -6,7 +6,12 @@ use std::time::Duration; -use crate::types::{c_str_array_to_vec, c_str_to_string, FfiClientConfig, FfiServerConfig}; +use crate::error::{ErrorCode, FfiError}; +use crate::types::{ + c_str_array_to_vec_checked, c_str_to_string_checked, ffi_encryption_mode_to_sdk, + ffi_gift_wrap_mode_to_sdk, optional_c_str_to_string_checked, FfiCapabilityExclusion, + FfiClientConfig, FfiServerConfig, +}; pub struct ServerConfigParts { pub relay_urls: Vec, @@ -21,6 +26,30 @@ pub struct ServerConfigParts { pub allowed_pubkeys: Vec, pub session_timeout_secs: u64, pub cleanup_interval_secs: u64, + pub excluded_capabilities: Vec, + pub max_sessions: usize, + pub request_timeout_secs: u64, + pub relay_list_urls: Vec, + pub bootstrap_relay_urls: Vec, + pub publish_relay_list: bool, + pub profile_metadata_json: Option, +} + +pub struct ClientConfigParts { + pub relay_urls: Vec, + pub server_pubkey: String, + pub encryption_mode: contextvm_sdk::EncryptionMode, + pub gift_wrap_mode: contextvm_sdk::GiftWrapMode, + pub is_stateless: bool, + pub timeout_secs: u64, + pub discovery_relay_urls: Vec, + pub fallback_operational_relay_urls: Vec, +} + +#[derive(Clone)] +pub struct CapabilityExclusionParts { + pub method: String, + pub name: Option, } /// Build a `ServerInfo` from FFI C strings. @@ -62,17 +91,42 @@ pub fn build_server_info( /// Extract fields from an FfiServerConfig and build an SDK server config. pub fn build_sdk_server_config( config: &FfiServerConfig, -) -> contextvm_sdk::NostrServerTransportConfig { - let relay_urls = c_str_array_to_vec(config.relay_urls, config.relay_url_count); - let allowed = c_str_array_to_vec(config.allowed_pubkeys, config.allowed_pubkey_count); +) -> Result { + let relay_urls = + c_str_array_to_vec_checked(config.relay_urls, config.relay_url_count, "relay_urls")?; + let allowed = c_str_array_to_vec_checked( + config.allowed_pubkeys, + config.allowed_pubkey_count, + "allowed_pubkeys", + )?; + let excluded = ffi_capability_exclusions_to_parts( + config.excluded_capabilities, + config.excluded_capability_count, + )?; + let relay_list_urls = c_str_array_to_vec_checked( + config.relay_list_urls, + config.relay_list_url_count, + "relay_list_urls", + )?; + let bootstrap_relay_urls = c_str_array_to_vec_checked( + config.bootstrap_relay_urls, + config.bootstrap_relay_url_count, + "bootstrap_relay_urls", + )?; + let encryption_mode = ffi_encryption_mode_to_sdk(config.encryption_mode)?; + let gift_wrap_mode = ffi_gift_wrap_mode_to_sdk(config.gift_wrap_mode)?; let server_info = build_server_info( - c_str_to_string(config.server_name), - c_str_to_string(config.server_version), - c_str_to_string(config.server_picture), - c_str_to_string(config.server_about), - c_str_to_string(config.server_website), + optional_c_str_to_string_checked(config.server_name, "server_name")?, + optional_c_str_to_string_checked(config.server_version, "server_version")?, + optional_c_str_to_string_checked(config.server_picture, "server_picture")?, + optional_c_str_to_string_checked(config.server_about, "server_about")?, + optional_c_str_to_string_checked(config.server_website, "server_website")?, ); + let profile_metadata = parse_profile_metadata_json(optional_c_str_to_string_checked( + config.profile_metadata_json, + "profile_metadata_json", + )?)?; let mut sdk_config = contextvm_sdk::NostrServerTransportConfig::default() .with_relay_urls(if relay_urls.is_empty() { @@ -80,42 +134,67 @@ pub fn build_sdk_server_config( } else { relay_urls }) - .with_encryption_mode(config.encryption_mode.into()) - .with_gift_wrap_mode(config.gift_wrap_mode.into()) + .with_encryption_mode(encryption_mode) + .with_gift_wrap_mode(gift_wrap_mode) .with_announced_server(config.is_announced_server) .with_allowed_public_keys(allowed) .with_session_timeout(Duration::from_secs(config.session_timeout_secs.max(1))) - .with_cleanup_interval(Duration::from_secs(config.cleanup_interval_secs.max(1))); + .with_cleanup_interval(Duration::from_secs(config.cleanup_interval_secs.max(1))) + .with_publish_relay_list(config.publish_relay_list); if let Some(server_info) = server_info { sdk_config = sdk_config.with_server_info(server_info); } - sdk_config + sdk_config = apply_extended_server_config( + sdk_config, + excluded, + config.max_sessions, + config.request_timeout_secs, + relay_list_urls, + bootstrap_relay_urls, + profile_metadata, + ); + + Ok(sdk_config) } /// Extract fields from an FfiClientConfig and build an SDK client config. pub fn build_sdk_client_config( config: &FfiClientConfig, -) -> Option { - let server_pubkey = c_str_to_string(config.server_pubkey)?; - let relay_urls = c_str_array_to_vec(config.relay_urls, config.relay_url_count); - - Some( - contextvm_sdk::NostrClientTransportConfig::default() - .with_relay_urls(relay_urls) - .with_server_pubkey(server_pubkey) - .with_encryption_mode(config.encryption_mode.into()) - .with_gift_wrap_mode(config.gift_wrap_mode.into()) - .with_stateless(config.is_stateless) - .with_timeout(Duration::from_secs(config.timeout_secs.max(1))), - ) +) -> Result { + let server_pubkey = c_str_to_string_checked(config.server_pubkey, "server_pubkey")?; + let relay_urls = + c_str_array_to_vec_checked(config.relay_urls, config.relay_url_count, "relay_urls")?; + let discovery_relay_urls = c_str_array_to_vec_checked( + config.discovery_relay_urls, + config.discovery_relay_url_count, + "discovery_relay_urls", + )?; + let fallback_operational_relay_urls = c_str_array_to_vec_checked( + config.fallback_operational_relay_urls, + config.fallback_operational_relay_url_count, + "fallback_operational_relay_urls", + )?; + let encryption_mode = ffi_encryption_mode_to_sdk(config.encryption_mode)?; + let gift_wrap_mode = ffi_gift_wrap_mode_to_sdk(config.gift_wrap_mode)?; + + Ok(build_sdk_client_config_from_fields(ClientConfigParts { + relay_urls, + server_pubkey, + encryption_mode, + gift_wrap_mode, + is_stateless: config.is_stateless, + timeout_secs: config.timeout_secs, + discovery_relay_urls, + fallback_operational_relay_urls, + })) } /// Build a server config from UniFFI record fields. pub fn build_sdk_server_config_from_fields( parts: ServerConfigParts, -) -> contextvm_sdk::NostrServerTransportConfig { +) -> Result { let server_info = build_server_info( parts.server_name, parts.server_version, @@ -123,6 +202,7 @@ pub fn build_sdk_server_config_from_fields( parts.server_about, parts.server_website, ); + let profile_metadata = parse_profile_metadata_json(parts.profile_metadata_json)?; let mut sdk_config = contextvm_sdk::NostrServerTransportConfig::default() .with_relay_urls(if parts.relay_urls.is_empty() { @@ -135,36 +215,183 @@ pub fn build_sdk_server_config_from_fields( .with_announced_server(parts.is_announced_server) .with_allowed_public_keys(parts.allowed_pubkeys) .with_session_timeout(Duration::from_secs(parts.session_timeout_secs.max(1))) - .with_cleanup_interval(Duration::from_secs(parts.cleanup_interval_secs.max(1))); + .with_cleanup_interval(Duration::from_secs(parts.cleanup_interval_secs.max(1))) + .with_publish_relay_list(parts.publish_relay_list); if let Some(server_info) = server_info { sdk_config = sdk_config.with_server_info(server_info); } - sdk_config + sdk_config = apply_extended_server_config( + sdk_config, + parts.excluded_capabilities, + parts.max_sessions, + parts.request_timeout_secs, + parts.relay_list_urls, + parts.bootstrap_relay_urls, + profile_metadata, + ); + + Ok(sdk_config) } /// Build a client config from UniFFI record fields. pub fn build_sdk_client_config_from_fields( - relay_urls: Vec, - server_pubkey: String, - encryption_mode: contextvm_sdk::EncryptionMode, - gift_wrap_mode: contextvm_sdk::GiftWrapMode, - is_stateless: bool, - timeout_secs: u64, + parts: ClientConfigParts, ) -> contextvm_sdk::NostrClientTransportConfig { - contextvm_sdk::NostrClientTransportConfig::default() - .with_relay_urls(relay_urls) - .with_server_pubkey(server_pubkey) - .with_encryption_mode(encryption_mode) - .with_gift_wrap_mode(gift_wrap_mode) - .with_stateless(is_stateless) - .with_timeout(Duration::from_secs(timeout_secs.max(1))) + let mut config = contextvm_sdk::NostrClientTransportConfig::default() + .with_relay_urls(parts.relay_urls) + .with_server_pubkey(parts.server_pubkey) + .with_encryption_mode(parts.encryption_mode) + .with_gift_wrap_mode(parts.gift_wrap_mode) + .with_stateless(parts.is_stateless) + .with_timeout(Duration::from_secs(parts.timeout_secs.max(1))); + + if !parts.discovery_relay_urls.is_empty() { + config = config.with_discovery_relay_urls(parts.discovery_relay_urls); + } + if !parts.fallback_operational_relay_urls.is_empty() { + config = config.with_fallback_operational_relay_urls(parts.fallback_operational_relay_urls); + } + + config +} + +fn apply_extended_server_config( + mut config: contextvm_sdk::NostrServerTransportConfig, + excluded_capabilities: Vec, + max_sessions: usize, + request_timeout_secs: u64, + relay_list_urls: Vec, + bootstrap_relay_urls: Vec, + profile_metadata: Option, +) -> contextvm_sdk::NostrServerTransportConfig { + if !excluded_capabilities.is_empty() { + config = config.with_excluded_capabilities( + excluded_capabilities + .into_iter() + .map(|cap| contextvm_sdk::CapabilityExclusion { + method: cap.method, + name: cap.name, + }) + .collect(), + ); + } + if max_sessions > 0 { + config = config.with_max_sessions(max_sessions); + } + if request_timeout_secs > 0 { + config = config.with_request_timeout(Duration::from_secs(request_timeout_secs)); + } + if !relay_list_urls.is_empty() { + config = config.with_relay_list_urls(relay_list_urls); + } + if !bootstrap_relay_urls.is_empty() { + config = config.with_bootstrap_relay_urls(bootstrap_relay_urls); + } + if let Some(profile_metadata) = profile_metadata { + config = config.with_profile_metadata(profile_metadata); + } + config +} + +fn ffi_capability_exclusions_to_parts( + ptr: *mut FfiCapabilityExclusion, + count: usize, +) -> Result, FfiError> { + if count == 0 { + return Ok(Vec::new()); + } + if ptr.is_null() { + return Err(FfiError { + code: ErrorCode::Validation, + message: format!("excluded_capabilities has count {count} but null pointer"), + }); + } + + unsafe { + std::slice::from_raw_parts(ptr, count) + .iter() + .map(|cap| { + let method = c_str_to_string_checked(cap.method, "capability_exclusions[].method")?; + Ok(CapabilityExclusionParts { + method, + name: optional_c_str_to_string_checked( + cap.name, + "capability_exclusions[].name", + )?, + }) + }) + .collect() + } +} + +fn parse_profile_metadata_json( + json: Option, +) -> Result, FfiError> { + match json { + Some(json) if !json.trim().is_empty() => { + serde_json::from_str(&json).map(Some).map_err(|e| FfiError { + code: ErrorCode::Serialization, + message: format!("invalid profile_metadata_json: {e}"), + }) + } + _ => Ok(None), + } } #[cfg(test)] mod tests { use super::*; + use crate::types::{ENCRYPTION_MODE_OPTIONAL, GIFT_WRAP_MODE_OPTIONAL}; + use std::ffi::CString; + use std::os::raw::c_char; + use std::ptr; + + fn minimal_ffi_server_config() -> FfiServerConfig { + FfiServerConfig { + relay_urls: ptr::null_mut(), + relay_url_count: 0, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_announced_server: false, + server_name: ptr::null_mut(), + server_version: ptr::null_mut(), + server_picture: ptr::null_mut(), + server_about: ptr::null_mut(), + server_website: ptr::null_mut(), + allowed_pubkeys: ptr::null_mut(), + allowed_pubkey_count: 0, + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: ptr::null_mut(), + excluded_capability_count: 0, + max_sessions: 0, + request_timeout_secs: 0, + relay_list_urls: ptr::null_mut(), + relay_list_url_count: 0, + bootstrap_relay_urls: ptr::null_mut(), + bootstrap_relay_url_count: 0, + publish_relay_list: false, + profile_metadata_json: ptr::null_mut(), + } + } + + fn minimal_ffi_client_config(server_pubkey: *mut c_char) -> FfiClientConfig { + FfiClientConfig { + relay_urls: ptr::null_mut(), + relay_url_count: 0, + server_pubkey, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_stateless: false, + timeout_secs: 30, + discovery_relay_urls: ptr::null_mut(), + discovery_relay_url_count: 0, + fallback_operational_relay_urls: ptr::null_mut(), + fallback_operational_relay_url_count: 0, + } + } #[test] fn omitted_server_info_matches_sdk_default() { @@ -183,7 +410,15 @@ mod tests { allowed_pubkeys: vec![], session_timeout_secs: 300, cleanup_interval_secs: 60, - }); + excluded_capabilities: vec![], + max_sessions: 0, + request_timeout_secs: 0, + relay_list_urls: vec![], + bootstrap_relay_urls: vec![], + publish_relay_list: true, + profile_metadata_json: None, + }) + .expect("config should build"); assert!(config.server_info.is_none()); } @@ -205,4 +440,150 @@ mod tests { assert_eq!(info.about.as_deref(), Some("about")); assert_eq!(info.website.as_deref(), Some("https://example.com")); } + + #[test] + fn server_config_preserves_extended_fields() { + let config = build_sdk_server_config_from_fields(ServerConfigParts { + relay_urls: vec!["wss://relay.example.com".to_string()], + encryption_mode: contextvm_sdk::EncryptionMode::Optional, + gift_wrap_mode: contextvm_sdk::GiftWrapMode::Optional, + server_name: None, + server_version: None, + server_picture: None, + server_about: None, + server_website: None, + is_announced_server: false, + allowed_pubkeys: vec![], + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: vec![CapabilityExclusionParts { + method: "tools/call".to_string(), + name: Some("get_weather".to_string()), + }], + max_sessions: 42, + request_timeout_secs: 17, + relay_list_urls: vec!["wss://relay-list.example.com".to_string()], + bootstrap_relay_urls: vec!["wss://bootstrap.example.com".to_string()], + publish_relay_list: false, + profile_metadata_json: Some(r#"{"name":"profile","nip05":"bot@example.com"}"#.into()), + }) + .expect("config should build"); + + assert_eq!(config.excluded_capabilities.len(), 1); + assert_eq!(config.max_sessions, 42); + assert_eq!(config.request_timeout.as_secs(), 17); + assert_eq!( + config.relay_list_urls.as_deref(), + Some(&["wss://relay-list.example.com".to_string()][..]) + ); + assert_eq!( + config.bootstrap_relay_urls.as_deref(), + Some(&["wss://bootstrap.example.com".to_string()][..]) + ); + assert!(!config.publish_relay_list); + let profile = config.profile_metadata.expect("profile metadata"); + assert_eq!(profile.name.as_deref(), Some("profile")); + assert_eq!(profile.nip05.as_deref(), Some("bot@example.com")); + } + + #[test] + fn client_config_preserves_discovery_relays() { + let config = build_sdk_client_config_from_fields(ClientConfigParts { + relay_urls: vec!["wss://relay.example.com".to_string()], + server_pubkey: "abc".to_string(), + encryption_mode: contextvm_sdk::EncryptionMode::Optional, + gift_wrap_mode: contextvm_sdk::GiftWrapMode::Optional, + is_stateless: false, + timeout_secs: 30, + discovery_relay_urls: vec!["wss://discovery.example.com".to_string()], + fallback_operational_relay_urls: vec!["wss://fallback.example.com".to_string()], + }); + + assert_eq!( + config.discovery_relay_urls.as_deref(), + Some(&["wss://discovery.example.com".to_string()][..]) + ); + assert_eq!( + config.fallback_operational_relay_urls.as_deref(), + Some(&["wss://fallback.example.com".to_string()][..]) + ); + } + + #[test] + fn ffi_server_config_rejects_counted_null_allowlist_pointer() { + let mut config = minimal_ffi_server_config(); + config.allowed_pubkey_count = 1; + + let err = build_sdk_server_config(&config).expect_err("counted null allowlist must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("allowed_pubkeys")); + } + + #[test] + fn ffi_server_config_rejects_null_allowlist_entry() { + let mut config = minimal_ffi_server_config(); + let mut entries = [ptr::null_mut()]; + config.allowed_pubkeys = entries.as_mut_ptr(); + config.allowed_pubkey_count = entries.len(); + + let err = build_sdk_server_config(&config).expect_err("null allowlist entry must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("allowed_pubkeys[0]")); + } + + #[test] + fn ffi_server_config_rejects_non_utf8_allowlist_entry() { + let mut config = minimal_ffi_server_config(); + let bad = CString::new(vec![0xff]).expect("no interior nul"); + let mut entries = [bad.as_ptr() as *mut c_char]; + config.allowed_pubkeys = entries.as_mut_ptr(); + config.allowed_pubkey_count = entries.len(); + + let err = + build_sdk_server_config(&config).expect_err("non-UTF-8 allowlist entry must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("allowed_pubkeys[0]")); + } + + #[test] + fn ffi_server_config_rejects_invalid_modes() { + let mut config = minimal_ffi_server_config(); + config.encryption_mode = 99; + + let err = build_sdk_server_config(&config).expect_err("invalid encryption mode must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("encryption_mode")); + + let mut config = minimal_ffi_server_config(); + config.gift_wrap_mode = 99; + + let err = build_sdk_server_config(&config).expect_err("invalid gift-wrap mode must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("gift_wrap_mode")); + } + + #[test] + fn ffi_client_config_rejects_missing_pubkey_and_invalid_modes() { + let config = minimal_ffi_client_config(ptr::null_mut()); + + let err = build_sdk_client_config(&config).expect_err("missing server pubkey must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("server_pubkey")); + + let server_pubkey = CString::new("abc").expect("valid c string"); + let mut config = minimal_ffi_client_config(server_pubkey.as_ptr() as *mut c_char); + config.encryption_mode = 99; + + let err = + build_sdk_client_config(&config).expect_err("invalid client encryption mode must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("encryption_mode")); + } } diff --git a/contextvm-ffi/src/channel.rs b/contextvm-ffi/src/channel.rs index e05638b..5c4c0b5 100644 --- a/contextvm-ffi/src/channel.rs +++ b/contextvm-ffi/src/channel.rs @@ -1,7 +1,7 @@ //! Channel-based wrapper types that allow FFI consumers to receive messages. use crate::builders::{build_sdk_client_config, build_sdk_server_config}; -use crate::error::{set_error, FfiError}; +use crate::error::{set_error, ErrorCode, FfiError}; use crate::handle::FfiHandle; use crate::kv; use crate::runtime::global_runtime; @@ -51,11 +51,18 @@ pub extern "C" fn cvm_server_ch_new( None => return FfiHandle { id: 0 }, }; - let sdk_config = build_sdk_server_config(&config); + let sdk_config = match build_sdk_server_config(&config) { + Ok(config) => config, + Err(e) => { + set_error(error, e); + return FfiHandle { id: 0 }; + } + }; let result = global_runtime().block_on(async { let mut transport = contextvm_sdk::NostrServerTransport::new(keys, sdk_config).await?; transport.start().await?; + transport.spawn_discoverability_publication(); let receiver = transport .take_message_receiver() .ok_or_else(|| contextvm_sdk::Error::Other("receiver already taken".into()))?; @@ -179,6 +186,134 @@ pub extern "C" fn cvm_server_ch_send_response( } } +/// Send a notification to a specific client through a server channel. +#[no_mangle] +pub extern "C" fn cvm_server_ch_send_notification( + handle: FfiHandle, + client_pubkey: *const c_char, + payload_json: *const c_char, + correlated_event_id: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return false; + } + }; + + let client_pubkey = match c_str_to_string(client_pubkey) { + Some(s) => s, + None => { + set_null_arg_error(error, "client_pubkey"); + return false; + } + }; + let msg = match parse_json_rpc_message(payload_json, error) { + Some(m) => m, + None => return false, + }; + let correlated_event_id = c_str_to_string(correlated_event_id); + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport + .send_notification(&client_pubkey, &msg, correlated_event_id.as_deref()) + .await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Broadcast a notification to all initialized clients. +#[no_mangle] +pub extern "C" fn cvm_server_ch_broadcast_notification( + handle: FfiHandle, + payload_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return false; + } + }; + + let msg = match parse_json_rpc_message(payload_json, error) { + Some(m) => m, + None => return false, + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.broadcast_notification(&msg).await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Sets extra announcement/discovery tags from a JSON array of tag arrays. +#[no_mangle] +pub extern "C" fn cvm_server_ch_set_announcement_extra_tags( + handle: FfiHandle, + tags_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return false; + } + }; + let tags = match parse_tags_json(tags_json, error) { + Some(tags) => tags, + None => return false, + }; + + global_runtime().block_on(async { + let mut transport = channel.transport.lock().await; + transport.set_announcement_extra_tags(tags); + }); + true +} + +/// Sets pricing tags from a JSON array of tag arrays. +#[no_mangle] +pub extern "C" fn cvm_server_ch_set_announcement_pricing_tags( + handle: FfiHandle, + tags_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return false; + } + }; + let tags = match parse_tags_json(tags_json, error) { + Some(tags) => tags, + None => return false, + }; + + global_runtime().block_on(async { + let mut transport = channel.transport.lock().await; + transport.set_announcement_pricing_tags(tags); + }); + true +} + /// Publish server announcement. #[no_mangle] pub extern "C" fn cvm_server_ch_announce(handle: FfiHandle, error: *mut *mut FfiError) -> bool { @@ -209,6 +344,122 @@ pub extern "C" fn cvm_server_ch_announce(handle: FfiHandle, error: *mut *mut Ffi } } +/// Publish server announcement and return the Nostr event ID. +#[no_mangle] +pub extern "C" fn cvm_server_ch_announce_event_id( + handle: FfiHandle, + error: *mut *mut FfiError, +) -> *mut c_char { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return std::ptr::null_mut(); + } + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.announce().await + }) { + Ok(event_id) => string_to_c(event_id.to_hex()), + Err(e) => { + set_error(error, e.into()); + std::ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_server_ch_publish_tools( + handle: FfiHandle, + tools_json: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let tools = match parse_json_value_array(tools_json, "tools_json", error) { + Some(values) => values, + None => return std::ptr::null_mut(), + }; + publish_server_values(handle, tools, ServerPublishListKind::Tools, error) +} + +#[no_mangle] +pub extern "C" fn cvm_server_ch_publish_resources( + handle: FfiHandle, + resources_json: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let resources = match parse_json_value_array(resources_json, "resources_json", error) { + Some(values) => values, + None => return std::ptr::null_mut(), + }; + publish_server_values(handle, resources, ServerPublishListKind::Resources, error) +} + +#[no_mangle] +pub extern "C" fn cvm_server_ch_publish_prompts( + handle: FfiHandle, + prompts_json: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let prompts = match parse_json_value_array(prompts_json, "prompts_json", error) { + Some(values) => values, + None => return std::ptr::null_mut(), + }; + publish_server_values(handle, prompts, ServerPublishListKind::Prompts, error) +} + +#[no_mangle] +pub extern "C" fn cvm_server_ch_publish_resource_templates( + handle: FfiHandle, + templates_json: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let templates = match parse_json_value_array(templates_json, "templates_json", error) { + Some(values) => values, + None => return std::ptr::null_mut(), + }; + publish_server_values( + handle, + templates, + ServerPublishListKind::ResourceTemplates, + error, + ) +} + +#[no_mangle] +pub extern "C" fn cvm_server_ch_delete_announcements( + handle: FfiHandle, + reason: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return false; + } + }; + let reason = match c_str_to_string(reason) { + Some(s) => s, + None => { + set_null_arg_error(error, "reason"); + return false; + } + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.delete_announcements(&reason).await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + /// Close a server channel. #[no_mangle] pub extern "C" fn cvm_server_ch_close(handle: FfiHandle, error: *mut *mut FfiError) -> bool { @@ -256,15 +507,9 @@ pub extern "C" fn cvm_client_ch_new( }; let sdk_config = match build_sdk_client_config(&config) { - Some(c) => c, - None => { - set_error( - error, - FfiError { - code: crate::error::ErrorCode::Validation, - message: "server_pubkey is required".into(), - }, - ); + Ok(c) => c, + Err(e) => { + set_error(error, e); return FfiHandle { id: 0 }; } }; @@ -375,6 +620,92 @@ pub extern "C" fn cvm_client_ch_recv( } } +/// Return a snapshot of server capabilities learned from discovery tags. +#[no_mangle] +pub extern "C" fn cvm_client_ch_discovered_server_capabilities( + handle: FfiHandle, + out_caps: *mut FfiPeerCapabilities, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "client channel"); + return false; + } + }; + if out_caps.is_null() { + set_null_arg_error(error, "out_caps"); + return false; + } + + let caps = global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.discovered_server_capabilities() + }); + unsafe { + *out_caps = peer_capabilities_to_ffi(caps); + } + true +} + +/// Return whether the client has learned ephemeral gift-wrap support. +#[no_mangle] +pub extern "C" fn cvm_client_ch_server_supports_ephemeral_encryption( + handle: FfiHandle, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "client channel"); + return false; + } + }; + + global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.server_supports_ephemeral_encryption() + }) +} + +/// Return the first server event carrying discovery tags as JSON, or NULL if none. +#[no_mangle] +pub extern "C" fn cvm_client_ch_server_initialize_event_json( + handle: FfiHandle, + error: *mut *mut FfiError, +) -> *mut c_char { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "client channel"); + return std::ptr::null_mut(); + } + }; + + let event = global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.get_server_initialize_event() + }); + + match event { + Some(event) => match serde_json::to_string(&event) { + Ok(json) => string_to_c(json), + Err(e) => { + set_error( + error, + FfiError { + code: ErrorCode::Serialization, + message: e.to_string(), + }, + ); + std::ptr::null_mut() + } + }, + None => std::ptr::null_mut(), + } +} + /// Close a client channel. #[no_mangle] pub extern "C" fn cvm_client_ch_close(handle: FfiHandle, error: *mut *mut FfiError) -> bool { @@ -421,7 +752,13 @@ pub extern "C" fn cvm_gateway_ch_new( None => return FfiHandle { id: 0 }, }; - let sdk_config = build_sdk_server_config(&config); + let sdk_config = match build_sdk_server_config(&config) { + Ok(config) => config, + Err(e) => { + set_error(error, e); + return FfiHandle { id: 0 }; + } + }; let gw_config = contextvm_sdk::gateway::GatewayConfig::new(sdk_config); let result = global_runtime().block_on(async { @@ -577,6 +914,49 @@ pub extern "C" fn cvm_gateway_ch_announce(handle: FfiHandle, error: *mut *mut Ff } } +/// Publish gateway server announcement and return the Nostr event ID. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_announce_event_id( + handle: FfiHandle, + error: *mut *mut FfiError, +) -> *mut c_char { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "gateway channel"); + return std::ptr::null_mut(); + } + }; + + match global_runtime().block_on(async { + let gateway = channel.gateway.lock().await; + gateway.announce().await + }) { + Ok(event_id) => string_to_c(event_id.to_hex()), + Err(e) => { + set_error(error, e.into()); + std::ptr::null_mut() + } + } +} + +/// Check if a gateway channel is active. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_is_active(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "gateway channel"); + return false; + } + }; + + global_runtime().block_on(async { + let gateway = channel.gateway.lock().await; + gateway.is_active() + }) +} + /// Stop a gateway channel. #[no_mangle] pub extern "C" fn cvm_gateway_ch_stop(handle: FfiHandle, error: *mut *mut FfiError) -> bool { @@ -624,15 +1004,9 @@ pub extern "C" fn cvm_proxy_ch_new( }; let sdk_config = match build_sdk_client_config(&config) { - Some(c) => c, - None => { - set_error( - error, - FfiError { - code: crate::error::ErrorCode::Validation, - message: "server_pubkey is required".into(), - }, - ); + Ok(c) => c, + Err(e) => { + set_error(error, e); return FfiHandle { id: 0 }; } }; @@ -799,6 +1173,23 @@ pub extern "C" fn cvm_proxy_ch_recv_timeout( } } +/// Check if a proxy channel is active. +#[no_mangle] +pub extern "C" fn cvm_proxy_ch_is_active(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "proxy channel"); + return false; + } + }; + + global_runtime().block_on(async { + let proxy = channel.proxy.lock().await; + proxy.is_active() + }) +} + /// Stop a proxy channel. #[no_mangle] pub extern "C" fn cvm_proxy_ch_stop(handle: FfiHandle, error: *mut *mut FfiError) -> bool { @@ -881,3 +1272,130 @@ fn parse_json_rpc_message( } } } + +fn parse_json_value_array( + payload_json: *const c_char, + name: &str, + error: *mut *mut FfiError, +) -> Option> { + let json_str = match c_str_to_string(payload_json) { + Some(s) => s, + None => { + set_null_arg_error(error, name); + return None; + } + }; + + match serde_json::from_str::>(&json_str) { + Ok(values) => Some(values), + Err(e) => { + set_error( + error, + FfiError { + code: ErrorCode::Serialization, + message: e.to_string(), + }, + ); + None + } + } +} + +fn parse_tags_json( + tags_json: *const c_char, + error: *mut *mut FfiError, +) -> Option> { + let json_str = match c_str_to_string(tags_json) { + Some(s) => s, + None => { + set_null_arg_error(error, "tags_json"); + return None; + } + }; + + let parts = match serde_json::from_str::>>(&json_str) { + Ok(parts) => parts, + Err(e) => { + set_error( + error, + FfiError { + code: ErrorCode::Serialization, + message: e.to_string(), + }, + ); + return None; + } + }; + + parts + .into_iter() + .map(|tag| { + nostr_sdk::prelude::Tag::parse(tag).map_err(|e| FfiError { + code: ErrorCode::Validation, + message: e.to_string(), + }) + }) + .collect::, _>>() + .map_err(|e| set_error(error, e)) + .ok() +} + +enum ServerPublishListKind { + Tools, + Resources, + Prompts, + ResourceTemplates, +} + +fn publish_server_values( + handle: FfiHandle, + values: Vec, + kind: ServerPublishListKind, + error: *mut *mut FfiError, +) -> *mut c_char { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return std::ptr::null_mut(); + } + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + match kind { + ServerPublishListKind::Tools => transport.publish_tools(values).await, + ServerPublishListKind::Resources => transport.publish_resources(values).await, + ServerPublishListKind::Prompts => transport.publish_prompts(values).await, + ServerPublishListKind::ResourceTemplates => { + transport.publish_resource_templates(values).await + } + } + }) { + Ok(event_id) => string_to_c(event_id.to_hex()), + Err(e) => { + set_error(error, e.into()); + std::ptr::null_mut() + } + } +} + +fn set_invalid_handle_error(error: *mut *mut FfiError, handle_type: &str) { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: format!("invalid {handle_type} handle"), + }, + ); +} + +fn set_null_arg_error(error: *mut *mut FfiError, name: &str) { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: format!("null {name}"), + }, + ); +} diff --git a/contextvm-ffi/src/types.rs b/contextvm-ffi/src/types.rs index a7b4209..e70dd52 100644 --- a/contextvm-ffi/src/types.rs +++ b/contextvm-ffi/src/types.rs @@ -15,53 +15,24 @@ use std::ptr; // ─── FFI-safe struct mirrors ─────────────────────────────────────────── -/// Encryption mode. -#[repr(C)] -#[derive(Debug, Clone, Copy, PartialEq, Eq)] -pub enum EncryptionMode { - Optional = 0, - Required = 1, - Disabled = 2, -} - -impl From for contextvm_sdk::EncryptionMode { - fn from(m: EncryptionMode) -> Self { - match m { - EncryptionMode::Optional => contextvm_sdk::EncryptionMode::Optional, - EncryptionMode::Required => contextvm_sdk::EncryptionMode::Required, - EncryptionMode::Disabled => contextvm_sdk::EncryptionMode::Disabled, - } - } -} +/// Raw integer mode value supplied by C callers. +pub type FfiMode = i32; -/// Gift-wrap mode (CEP-19). -#[repr(C)] -#[derive(Debug, Clone, Copy, PartialEq, Eq)] -pub enum GiftWrapMode { - Optional = 0, - Ephemeral = 1, - Persistent = 2, -} +pub const ENCRYPTION_MODE_OPTIONAL: FfiMode = 0; +pub const ENCRYPTION_MODE_REQUIRED: FfiMode = 1; +pub const ENCRYPTION_MODE_DISABLED: FfiMode = 2; -impl From for contextvm_sdk::GiftWrapMode { - fn from(m: GiftWrapMode) -> Self { - match m { - GiftWrapMode::Optional => contextvm_sdk::GiftWrapMode::Optional, - GiftWrapMode::Ephemeral => contextvm_sdk::GiftWrapMode::Ephemeral, - GiftWrapMode::Persistent => contextvm_sdk::GiftWrapMode::Persistent, - } - } -} +pub const GIFT_WRAP_MODE_OPTIONAL: FfiMode = 0; +pub const GIFT_WRAP_MODE_EPHEMERAL: FfiMode = 1; +pub const GIFT_WRAP_MODE_PERSISTENT: FfiMode = 2; /// JSON-RPC message type discriminator. -#[repr(C)] -#[derive(Debug, Clone, Copy, PartialEq, Eq)] -pub enum JsonRpcType { - Request = 0, - Response = 1, - ErrorResponse = 2, - Notification = 3, -} +pub type JsonRpcType = i32; + +pub const JSON_RPC_TYPE_REQUEST: JsonRpcType = 0; +pub const JSON_RPC_TYPE_RESPONSE: JsonRpcType = 1; +pub const JSON_RPC_TYPE_ERROR_RESPONSE: JsonRpcType = 2; +pub const JSON_RPC_TYPE_NOTIFICATION: JsonRpcType = 3; /// An FFI-safe JSON-RPC message. #[repr(C)] @@ -122,14 +93,31 @@ pub struct FfiProviderProfile { pub nip05: *mut c_char, } +/// A capability exclusion pattern that bypasses pubkey whitelisting. +#[repr(C)] +#[derive(Debug)] +pub struct FfiCapabilityExclusion { + pub method: *mut c_char, + pub name: *mut c_char, +} + +/// Learned peer capability flags. +#[repr(C)] +#[derive(Debug, Clone, Copy)] +pub struct FfiPeerCapabilities { + pub supports_encryption: bool, + pub supports_ephemeral_encryption: bool, + pub supports_oversized_transfer: bool, +} + /// Server transport config for FFI. #[repr(C)] #[derive(Debug)] pub struct FfiServerConfig { pub relay_urls: *mut *mut c_char, pub relay_url_count: usize, - pub encryption_mode: EncryptionMode, - pub gift_wrap_mode: GiftWrapMode, + pub encryption_mode: FfiMode, + pub gift_wrap_mode: FfiMode, pub is_announced_server: bool, pub server_name: *mut c_char, pub server_version: *mut c_char, @@ -140,6 +128,16 @@ pub struct FfiServerConfig { pub allowed_pubkey_count: usize, pub session_timeout_secs: u64, pub cleanup_interval_secs: u64, + pub excluded_capabilities: *mut FfiCapabilityExclusion, + pub excluded_capability_count: usize, + pub max_sessions: usize, + pub request_timeout_secs: u64, + pub relay_list_urls: *mut *mut c_char, + pub relay_list_url_count: usize, + pub bootstrap_relay_urls: *mut *mut c_char, + pub bootstrap_relay_url_count: usize, + pub publish_relay_list: bool, + pub profile_metadata_json: *mut c_char, } /// Client transport config for FFI. @@ -149,10 +147,14 @@ pub struct FfiClientConfig { pub relay_urls: *mut *mut c_char, pub relay_url_count: usize, pub server_pubkey: *mut c_char, - pub encryption_mode: EncryptionMode, - pub gift_wrap_mode: GiftWrapMode, + pub encryption_mode: FfiMode, + pub gift_wrap_mode: FfiMode, pub is_stateless: bool, pub timeout_secs: u64, + pub discovery_relay_urls: *mut *mut c_char, + pub discovery_relay_url_count: usize, + pub fallback_operational_relay_urls: *mut *mut c_char, + pub fallback_operational_relay_url_count: usize, } // ─── Internal conversion helpers ─────────────────────────────────────── @@ -164,6 +166,36 @@ pub fn c_str_to_string(ptr: *const c_char) -> Option { unsafe { CStr::from_ptr(ptr).to_str().ok().map(String::from) } } +pub fn c_str_to_string_checked(ptr: *const c_char, name: &str) -> Result { + if ptr.is_null() { + return Err(FfiError { + code: ErrorCode::Validation, + message: format!("null {name}"), + }); + } + + unsafe { + CStr::from_ptr(ptr) + .to_str() + .map(String::from) + .map_err(|e| FfiError { + code: ErrorCode::Validation, + message: format!("{name} is not valid UTF-8: {e}"), + }) + } +} + +pub fn optional_c_str_to_string_checked( + ptr: *const c_char, + name: &str, +) -> Result, FfiError> { + if ptr.is_null() { + Ok(None) + } else { + c_str_to_string_checked(ptr, name).map(Some) + } +} + pub fn string_to_c(s: String) -> *mut c_char { CString::new(s).unwrap_or_default().into_raw() } @@ -182,20 +214,102 @@ pub fn c_str_array_to_vec(ptr: *mut *mut c_char, count: usize) -> Vec { } } +pub fn c_str_array_to_vec_checked( + ptr: *mut *mut c_char, + count: usize, + name: &str, +) -> Result, FfiError> { + if count == 0 { + return Ok(Vec::new()); + } + if ptr.is_null() { + return Err(FfiError { + code: ErrorCode::Validation, + message: format!("{name} has count {count} but null pointer"), + }); + } + + unsafe { + std::slice::from_raw_parts(ptr, count) + .iter() + .enumerate() + .map(|(index, &p)| { + if p.is_null() { + return Err(FfiError { + code: ErrorCode::Validation, + message: format!("{name}[{index}] is null"), + }); + } + + CStr::from_ptr(p) + .to_str() + .map(String::from) + .map_err(|e| FfiError { + code: ErrorCode::Validation, + message: format!("{name}[{index}] is not valid UTF-8: {e}"), + }) + }) + .collect() + } +} + +pub fn ffi_encryption_mode_to_sdk( + mode: FfiMode, +) -> Result { + match mode { + ENCRYPTION_MODE_OPTIONAL => Ok(contextvm_sdk::EncryptionMode::Optional), + ENCRYPTION_MODE_REQUIRED => Ok(contextvm_sdk::EncryptionMode::Required), + ENCRYPTION_MODE_DISABLED => Ok(contextvm_sdk::EncryptionMode::Disabled), + _ => Err(FfiError { + code: ErrorCode::Validation, + message: format!("invalid encryption_mode {mode}"), + }), + } +} + +pub fn ffi_gift_wrap_mode_to_sdk(mode: FfiMode) -> Result { + match mode { + GIFT_WRAP_MODE_OPTIONAL => Ok(contextvm_sdk::GiftWrapMode::Optional), + GIFT_WRAP_MODE_EPHEMERAL => Ok(contextvm_sdk::GiftWrapMode::Ephemeral), + GIFT_WRAP_MODE_PERSISTENT => Ok(contextvm_sdk::GiftWrapMode::Persistent), + _ => Err(FfiError { + code: ErrorCode::Validation, + message: format!("invalid gift_wrap_mode {mode}"), + }), + } +} + +pub fn json_rpc_id_to_string(id: &serde_json::Value) -> String { + match id { + serde_json::Value::String(s) => s.clone(), + other => other.to_string(), + } +} + +pub fn peer_capabilities_to_ffi( + caps: contextvm_sdk::transport::discovery_tags::PeerCapabilities, +) -> FfiPeerCapabilities { + FfiPeerCapabilities { + supports_encryption: caps.supports_encryption, + supports_ephemeral_encryption: caps.supports_ephemeral_encryption, + supports_oversized_transfer: caps.supports_oversized_transfer, + } +} + /// Convert an SDK `JsonRpcMessage` to the FFI representation. pub fn message_to_ffi(msg: &contextvm_sdk::JsonRpcMessage) -> FfiJsonRpcMessage { let json_str = serde_json::to_string(msg).unwrap_or_default(); let msg_type = match msg { - contextvm_sdk::JsonRpcMessage::Request(_) => JsonRpcType::Request, - contextvm_sdk::JsonRpcMessage::Response(_) => JsonRpcType::Response, - contextvm_sdk::JsonRpcMessage::ErrorResponse(_) => JsonRpcType::ErrorResponse, - contextvm_sdk::JsonRpcMessage::Notification(_) => JsonRpcType::Notification, + contextvm_sdk::JsonRpcMessage::Request(_) => JSON_RPC_TYPE_REQUEST, + contextvm_sdk::JsonRpcMessage::Response(_) => JSON_RPC_TYPE_RESPONSE, + contextvm_sdk::JsonRpcMessage::ErrorResponse(_) => JSON_RPC_TYPE_ERROR_RESPONSE, + contextvm_sdk::JsonRpcMessage::Notification(_) => JSON_RPC_TYPE_NOTIFICATION, }; FfiJsonRpcMessage { msg_type, payload_json: string_to_c(json_str), method: opt_string_to_c(msg.method().map(String::from)), - id: opt_string_to_c(msg.id().map(|v| v.to_string())), + id: opt_string_to_c(msg.id().map(json_rpc_id_to_string)), } } @@ -916,3 +1030,39 @@ fn profiles_to_ffi_array( std::mem::forget(ffi_profiles); ptr } + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn message_to_ffi_string_id_is_unquoted() { + let msg = contextvm_sdk::JsonRpcMessage::Request(contextvm_sdk::JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::Value::String("request-1".to_string()), + method: "tools/list".to_string(), + params: None, + }); + + let ffi = message_to_ffi(&msg); + let id = unsafe { CStr::from_ptr(ffi.id).to_str().unwrap().to_string() }; + cvm_message_free(ffi); + + assert_eq!(id, "request-1"); + } + + #[test] + fn message_to_ffi_non_string_id_remains_json_encoded() { + let msg = contextvm_sdk::JsonRpcMessage::Response(contextvm_sdk::JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(42), + result: serde_json::json!({}), + }); + + let ffi = message_to_ffi(&msg); + let id = unsafe { CStr::from_ptr(ffi.id).to_str().unwrap().to_string() }; + cvm_message_free(ffi); + + assert_eq!(id, "42"); + } +} diff --git a/contextvm-ffi/src/uniffi_types.rs b/contextvm-ffi/src/uniffi_types.rs index 3a17f58..4b81594 100644 --- a/contextvm-ffi/src/uniffi_types.rs +++ b/contextvm-ffi/src/uniffi_types.rs @@ -5,10 +5,12 @@ //! Kotlin consumers. use crate::builders::{ - build_sdk_client_config_from_fields, build_sdk_server_config_from_fields, ServerConfigParts, + build_sdk_client_config_from_fields, build_sdk_server_config_from_fields, + CapabilityExclusionParts, ClientConfigParts, ServerConfigParts, }; use crate::error::FfiError; use crate::runtime::global_runtime; +use crate::types::json_rpc_id_to_string; use std::sync::Arc; use std::time::Duration; @@ -81,6 +83,21 @@ pub struct ProviderProfile { pub nip05: Option, } +/// A capability exclusion pattern that bypasses pubkey whitelisting. +#[derive(Debug, Clone, uniffi::Record)] +pub struct CapabilityExclusion { + pub method: String, + pub name: Option, +} + +/// Learned peer capability flags. +#[derive(Debug, Clone, Copy, uniffi::Record)] +pub struct PeerCapabilities { + pub supports_encryption: bool, + pub supports_ephemeral_encryption: bool, + pub supports_oversized_transfer: bool, +} + /// A discovered MCP tool and provider metadata used by foreign clients. #[derive(Debug, Clone, uniffi::Record)] pub struct DiscoveredTool { @@ -110,6 +127,13 @@ pub struct ServerConfig { pub allowed_pubkeys: Vec, pub session_timeout_secs: u64, pub cleanup_interval_secs: u64, + pub excluded_capabilities: Vec, + pub max_sessions: u64, + pub request_timeout_secs: u64, + pub relay_list_urls: Vec, + pub bootstrap_relay_urls: Vec, + pub publish_relay_list: bool, + pub profile_metadata_json: Option, } impl Default for ServerConfig { @@ -127,6 +151,13 @@ impl Default for ServerConfig { allowed_pubkeys: vec![], session_timeout_secs: 300, cleanup_interval_secs: 60, + excluded_capabilities: vec![], + max_sessions: 1000, + request_timeout_secs: 60, + relay_list_urls: vec![], + bootstrap_relay_urls: vec![], + publish_relay_list: true, + profile_metadata_json: None, } } } @@ -140,6 +171,8 @@ pub struct ClientConfig { pub gift_wrap_mode: GiftWrapMode, pub is_stateless: bool, pub timeout_secs: u64, + pub discovery_relay_urls: Vec, + pub fallback_operational_relay_urls: Vec, } impl Default for ClientConfig { @@ -151,6 +184,8 @@ impl Default for ClientConfig { gift_wrap_mode: GiftWrapMode::Optional, is_stateless: false, timeout_secs: 30, + discovery_relay_urls: vec![], + fallback_operational_relay_urls: vec![], } } } @@ -185,7 +220,7 @@ fn message_to_uniffi(msg: &contextvm_sdk::JsonRpcMessage) -> JsonRpcMessage { msg_type, payload_json: serde_json::to_string(msg).unwrap_or_default(), method: msg.method().map(String::from).unwrap_or_default(), - id: msg.id().map(|v| v.to_string()).unwrap_or_default(), + id: msg.id().map(json_rpc_id_to_string).unwrap_or_default(), } } @@ -229,6 +264,37 @@ fn profile_to_uniffi(profile: crate::discovery::ProviderProfileRecord) -> Provid } } +fn capabilities_to_uniffi(caps: contextvm_sdk::PeerCapabilities) -> PeerCapabilities { + PeerCapabilities { + supports_encryption: caps.supports_encryption, + supports_ephemeral_encryption: caps.supports_ephemeral_encryption, + supports_oversized_transfer: caps.supports_oversized_transfer, + } +} + +fn parse_json_value_array(json: &str, name: &str) -> Result, FfiError> { + serde_json::from_str(json).map_err(|e| FfiError { + code: crate::error::ErrorCode::Serialization, + message: format!("invalid {name}: {e}"), + }) +} + +fn parse_tags_json(json: &str) -> Result, FfiError> { + let parts: Vec> = serde_json::from_str(json).map_err(|e| FfiError { + code: crate::error::ErrorCode::Serialization, + message: format!("invalid tags_json: {e}"), + })?; + parts + .into_iter() + .map(|tag| { + nostr_sdk::prelude::Tag::parse(tag).map_err(|e| FfiError { + code: crate::error::ErrorCode::Validation, + message: e.to_string(), + }) + }) + .collect() +} + // ─── High-level UniFFI objects ───────────────────────────────────────── /// A Nostr keypair. @@ -328,7 +394,21 @@ impl Server { allowed_pubkeys: config.allowed_pubkeys.clone(), session_timeout_secs: config.session_timeout_secs, cleanup_interval_secs: config.cleanup_interval_secs, - }); + excluded_capabilities: config + .excluded_capabilities + .iter() + .map(|cap| CapabilityExclusionParts { + method: cap.method.clone(), + name: cap.name.clone(), + }) + .collect(), + max_sessions: config.max_sessions as usize, + request_timeout_secs: config.request_timeout_secs, + relay_list_urls: config.relay_list_urls.clone(), + bootstrap_relay_urls: config.bootstrap_relay_urls.clone(), + publish_relay_list: config.publish_relay_list, + profile_metadata_json: config.profile_metadata_json.clone(), + })?; global_runtime() .block_on(async { @@ -336,6 +416,7 @@ impl Server { contextvm_sdk::NostrServerTransport::new(keys.inner.clone(), sdk_config) .await?; transport.start().await?; + transport.spawn_discoverability_publication(); let receiver = transport .take_message_receiver() .ok_or_else(|| contextvm_sdk::Error::Other("receiver already taken".into()))?; @@ -374,6 +455,59 @@ impl Server { .map_err(FfiError::from) } + /// Send a notification to a specific client. + pub fn send_notification( + &self, + client_pubkey: &str, + payload_json: &str, + correlated_event_id: Option, + ) -> Result<(), FfiError> { + let message = parse_json_rpc(payload_json)?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard + .send_notification(client_pubkey, &message, correlated_event_id.as_deref()) + .await + }) + .map_err(FfiError::from) + } + + /// Broadcast a notification to all initialized clients. + pub fn broadcast_notification(&self, payload_json: &str) -> Result<(), FfiError> { + let message = parse_json_rpc(payload_json)?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.broadcast_notification(&message).await + }) + .map_err(FfiError::from) + } + + /// Sets extra announcement/discovery tags from a JSON array of tag arrays. + pub fn set_announcement_extra_tags(&self, tags_json: &str) -> Result<(), FfiError> { + let tags = parse_tags_json(tags_json)?; + let transport = self.transport.clone(); + global_runtime().block_on(async { + let mut guard = transport.lock().await; + guard.set_announcement_extra_tags(tags); + }); + Ok(()) + } + + /// Sets pricing tags from a JSON array of tag arrays. + pub fn set_announcement_pricing_tags(&self, tags_json: &str) -> Result<(), FfiError> { + let tags = parse_tags_json(tags_json)?; + let transport = self.transport.clone(); + global_runtime().block_on(async { + let mut guard = transport.lock().await; + guard.set_announcement_pricing_tags(tags); + }); + Ok(()) + } + /// Publish server announcement. pub fn announce(&self) -> Result<(), FfiError> { let transport = self.transport.clone(); @@ -386,6 +520,81 @@ impl Server { .map_err(FfiError::from) } + /// Publish server announcement and return the Nostr event ID. + pub fn announce_event_id(&self) -> Result { + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.announce().await + }) + .map(|event_id| event_id.to_hex()) + .map_err(FfiError::from) + } + + /// Publish tools list and return the Nostr event ID. + pub fn publish_tools(&self, tools_json: &str) -> Result { + let tools = parse_json_value_array(tools_json, "tools_json")?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.publish_tools(tools).await + }) + .map(|event_id| event_id.to_hex()) + .map_err(FfiError::from) + } + + /// Publish resources list and return the Nostr event ID. + pub fn publish_resources(&self, resources_json: &str) -> Result { + let resources = parse_json_value_array(resources_json, "resources_json")?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.publish_resources(resources).await + }) + .map(|event_id| event_id.to_hex()) + .map_err(FfiError::from) + } + + /// Publish prompts list and return the Nostr event ID. + pub fn publish_prompts(&self, prompts_json: &str) -> Result { + let prompts = parse_json_value_array(prompts_json, "prompts_json")?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.publish_prompts(prompts).await + }) + .map(|event_id| event_id.to_hex()) + .map_err(FfiError::from) + } + + /// Publish resource templates list and return the Nostr event ID. + pub fn publish_resource_templates(&self, templates_json: &str) -> Result { + let templates = parse_json_value_array(templates_json, "templates_json")?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.publish_resource_templates(templates).await + }) + .map(|event_id| event_id.to_hex()) + .map_err(FfiError::from) + } + + /// Delete previously published server announcements. + pub fn delete_announcements(&self, reason: &str) -> Result<(), FfiError> { + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.delete_announcements(reason).await + }) + .map_err(FfiError::from) + } + /// Close the server transport. pub fn close(&self) -> Result<(), FfiError> { let transport = self.transport.clone(); @@ -412,14 +621,16 @@ impl Client { /// Create and start a client transport. #[uniffi::constructor] pub fn new(keys: &Keys, config: &ClientConfig) -> Result { - let sdk_config = build_sdk_client_config_from_fields( - config.relay_urls.clone(), - config.server_pubkey.clone(), - sdk_encryption_mode(config.encryption_mode), - sdk_gift_wrap_mode(config.gift_wrap_mode), - config.is_stateless, - config.timeout_secs, - ); + let sdk_config = build_sdk_client_config_from_fields(ClientConfigParts { + relay_urls: config.relay_urls.clone(), + server_pubkey: config.server_pubkey.clone(), + encryption_mode: sdk_encryption_mode(config.encryption_mode), + gift_wrap_mode: sdk_gift_wrap_mode(config.gift_wrap_mode), + is_stateless: config.is_stateless, + timeout_secs: config.timeout_secs, + discovery_relay_urls: config.discovery_relay_urls.clone(), + fallback_operational_relay_urls: config.fallback_operational_relay_urls.clone(), + }); global_runtime() .block_on(async { @@ -465,6 +676,42 @@ impl Client { }) } + /// Return a snapshot of server capabilities learned from discovery tags. + pub fn discovered_server_capabilities(&self) -> PeerCapabilities { + let transport = self.transport.clone(); + let caps = global_runtime().block_on(async { + let guard = transport.lock().await; + guard.discovered_server_capabilities() + }); + capabilities_to_uniffi(caps) + } + + /// Return whether the client has learned ephemeral gift-wrap support. + pub fn server_supports_ephemeral_encryption(&self) -> bool { + let transport = self.transport.clone(); + global_runtime().block_on(async { + let guard = transport.lock().await; + guard.server_supports_ephemeral_encryption() + }) + } + + /// Return the first server event carrying discovery tags as JSON, if present. + pub fn server_initialize_event_json(&self) -> Result, FfiError> { + let transport = self.transport.clone(); + let event = global_runtime().block_on(async { + let guard = transport.lock().await; + guard.get_server_initialize_event() + }); + event + .map(|event| { + serde_json::to_string(&event).map_err(|e| FfiError { + code: crate::error::ErrorCode::Serialization, + message: e.to_string(), + }) + }) + .transpose() + } + /// Close the client transport. pub fn close(&self) -> Result<(), FfiError> { let transport = self.transport.clone(); @@ -477,6 +724,138 @@ impl Client { } } +/// A gateway that bridges a local MCP server to Nostr. +#[derive(uniffi::Object)] +pub struct Gateway { + gateway: Arc>, + receiver: Arc< + tokio::sync::Mutex>, + >, +} + +#[uniffi::export] +impl Gateway { + /// Create and start a gateway transport. + #[uniffi::constructor] + pub fn new(keys: &Keys, config: &ServerConfig) -> Result { + let sdk_config = build_sdk_server_config_from_fields(ServerConfigParts { + relay_urls: config.relay_urls.clone(), + encryption_mode: sdk_encryption_mode(config.encryption_mode), + gift_wrap_mode: sdk_gift_wrap_mode(config.gift_wrap_mode), + server_name: config.server_name.clone(), + server_version: config.server_version.clone(), + server_picture: config.server_picture.clone(), + server_about: config.server_about.clone(), + server_website: config.server_website.clone(), + is_announced_server: config.is_announced_server, + allowed_pubkeys: config.allowed_pubkeys.clone(), + session_timeout_secs: config.session_timeout_secs, + cleanup_interval_secs: config.cleanup_interval_secs, + excluded_capabilities: config + .excluded_capabilities + .iter() + .map(|cap| CapabilityExclusionParts { + method: cap.method.clone(), + name: cap.name.clone(), + }) + .collect(), + max_sessions: config.max_sessions as usize, + request_timeout_secs: config.request_timeout_secs, + relay_list_urls: config.relay_list_urls.clone(), + bootstrap_relay_urls: config.bootstrap_relay_urls.clone(), + publish_relay_list: config.publish_relay_list, + profile_metadata_json: config.profile_metadata_json.clone(), + })?; + let gateway_config = contextvm_sdk::gateway::GatewayConfig::new(sdk_config); + + global_runtime() + .block_on(async { + let mut gateway = contextvm_sdk::gateway::NostrMCPGateway::new( + keys.inner.clone(), + gateway_config, + ) + .await?; + let receiver = gateway.start().await?; + Ok::<_, contextvm_sdk::Error>(Self { + gateway: Arc::new(tokio::sync::Mutex::new(gateway)), + receiver: Arc::new(tokio::sync::Mutex::new(receiver)), + }) + }) + .map_err(FfiError::from) + } + + /// Receive the next incoming request. + pub fn recv(&self) -> Result { + let rx = self.receiver.clone(); + global_runtime() + .block_on(async { + let mut guard = rx.lock().await; + guard.recv().await + }) + .map(|req| incoming_to_uniffi(&req)) + .ok_or_else(|| FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }) + } + + /// Send a response for a given event ID. + pub fn send_response(&self, event_id: &str, payload_json: &str) -> Result<(), FfiError> { + let message = parse_json_rpc(payload_json)?; + let gateway = self.gateway.clone(); + global_runtime() + .block_on(async { + let guard = gateway.lock().await; + guard.send_response(event_id, message).await + }) + .map_err(FfiError::from) + } + + /// Publish server announcement. + pub fn announce(&self) -> Result<(), FfiError> { + let gateway = self.gateway.clone(); + global_runtime() + .block_on(async { + let guard = gateway.lock().await; + guard.announce().await + }) + .map(|_| ()) + .map_err(FfiError::from) + } + + /// Publish server announcement and return the Nostr event ID. + pub fn announce_event_id(&self) -> Result { + let gateway = self.gateway.clone(); + global_runtime() + .block_on(async { + let guard = gateway.lock().await; + guard.announce().await + }) + .map(|event_id| event_id.to_hex()) + .map_err(FfiError::from) + } + + /// Check if the gateway is active. + pub fn is_active(&self) -> bool { + let gateway = self.gateway.clone(); + global_runtime().block_on(async { + let guard = gateway.lock().await; + guard.is_active() + }) + } + + /// Stop the gateway transport. + pub fn stop(&self) -> Result<(), FfiError> { + let gateway = self.gateway.clone(); + global_runtime() + .block_on(async { + let mut guard = gateway.lock().await; + guard.stop().await + }) + .map_err(FfiError::from) + } +} + /// A proxy that connects a local MCP client to a remote Nostr MCP server. #[derive(uniffi::Object)] pub struct Proxy { @@ -491,14 +870,16 @@ impl Proxy { /// Create and start a proxy transport. #[uniffi::constructor] pub fn new(keys: &Keys, config: &ClientConfig) -> Result { - let sdk_config = build_sdk_client_config_from_fields( - config.relay_urls.clone(), - config.server_pubkey.clone(), - sdk_encryption_mode(config.encryption_mode), - sdk_gift_wrap_mode(config.gift_wrap_mode), - config.is_stateless, - config.timeout_secs, - ); + let sdk_config = build_sdk_client_config_from_fields(ClientConfigParts { + relay_urls: config.relay_urls.clone(), + server_pubkey: config.server_pubkey.clone(), + encryption_mode: sdk_encryption_mode(config.encryption_mode), + gift_wrap_mode: sdk_gift_wrap_mode(config.gift_wrap_mode), + is_stateless: config.is_stateless, + timeout_secs: config.timeout_secs, + discovery_relay_urls: config.discovery_relay_urls.clone(), + fallback_operational_relay_urls: config.fallback_operational_relay_urls.clone(), + }); let proxy_config = contextvm_sdk::proxy::ProxyConfig::new(sdk_config); global_runtime() @@ -561,6 +942,15 @@ impl Proxy { } } + /// Check if the proxy is active. + pub fn is_active(&self) -> bool { + let proxy = self.proxy.clone(); + global_runtime().block_on(async { + let guard = proxy.lock().await; + guard.is_active() + }) + } + /// Stop the proxy transport. pub fn stop(&self) -> Result<(), FfiError> { let proxy = self.proxy.clone(); diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index b452d9c..083a643 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -55,6 +55,7 @@ impl NostrMCPGateway { } self.transport.start().await?; + self.transport.spawn_discoverability_publication(); self.is_running = true; self.transport diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 008a5a0..81edaec 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -768,7 +768,15 @@ impl NostrServerTransport { .spawn_publish_public_announcements(self.cancellation_token.child_token()); self.task_handles.push(handle); } - // Unconditional: publish profile metadata and relay list (guards inside methods) + self.spawn_discoverability_publication(); + } + + /// Spawn profile metadata and relay-list publication for direct transport users. + /// + /// This publishes kind 0 and kind 10002 discoverability events when configured. + /// It intentionally does not spawn CEP-6 capability announcement tasks because + /// those inject synthetic MCP requests that require an rmcp worker. + pub fn spawn_discoverability_publication(&mut self) { let handle = self.announcement_manager.spawn_publish_discoverability(); self.task_handles.push(handle); } @@ -1328,6 +1336,7 @@ impl NostrServerTransport { #[cfg(test)] mod tests { use super::*; + use crate::relay::mock::MockRelayPool; use std::thread; // ── Session management ────────────────────────────────────── @@ -1567,6 +1576,42 @@ mod tests { assert!(config.profile_metadata.is_none()); } + #[tokio::test] + async fn spawn_discoverability_publication_publishes_kind_0_and_10002_only() { + let pool = Arc::new(MockRelayPool::new()); + let relay_pool: Arc = pool.clone(); + let config = NostrServerTransportConfig::default() + .with_relay_urls(vec!["wss://relay.example.com".to_string()]) + .with_profile_metadata(ProfileMetadata::default().with_name("ffi-server")) + .with_publish_relay_list(true); + let mut transport = NostrServerTransport::with_relay_pool(config, relay_pool) + .await + .expect("transport should build"); + + transport.spawn_discoverability_publication(); + for handle in transport.task_handles.drain(..) { + handle.await.expect("discoverability task should not panic"); + } + + let events = pool.stored_events().await; + assert!( + events.iter().any(|e| e.kind == Kind::Custom(0)), + "profile metadata should be published" + ); + assert!( + events + .iter() + .any(|e| e.kind == Kind::Custom(RELAY_LIST_METADATA_KIND)), + "relay list should be published" + ); + assert!( + events + .iter() + .all(|e| e.kind != Kind::Custom(SERVER_ANNOUNCEMENT_KIND)), + "direct discoverability publication must not emit CEP-6 announcements" + ); + } + // ── CEP-19 helper logic ────────────────────────────────────── #[test] From bf027094d690025300efd106b85accf0057189a9 Mon Sep 17 00:00:00 2001 From: Harsh Date: Tue, 2 Jun 2026 12:21:02 +0530 Subject: [PATCH 095/116] feat: CEP-22 - transport-agnostic oversized transfer framing engine --- Cargo.toml | 4 + src/core/error.rs | 4 + src/core/validation.rs | 54 + src/transport/mod.rs | 1 + src/transport/oversized_transfer/codec.rs | 360 ++++++ src/transport/oversized_transfer/constants.rs | 60 + src/transport/oversized_transfer/errors.rs | 54 + src/transport/oversized_transfer/frame.rs | 247 ++++ src/transport/oversized_transfer/mod.rs | 57 + src/transport/oversized_transfer/receiver.rs | 1083 +++++++++++++++++ 10 files changed, 1924 insertions(+) create mode 100644 src/transport/oversized_transfer/codec.rs create mode 100644 src/transport/oversized_transfer/constants.rs create mode 100644 src/transport/oversized_transfer/errors.rs create mode 100644 src/transport/oversized_transfer/frame.rs create mode 100644 src/transport/oversized_transfer/mod.rs create mode 100644 src/transport/oversized_transfer/receiver.rs diff --git a/Cargo.toml b/Cargo.toml index c90b711..6105f39 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -20,6 +20,10 @@ tokio = { version = "1", features = ["full"] } serde = { version = "1", features = ["derive"] } serde_json = "1" +# Hashing for CEP-22 oversized payload transfer (SHA-256 digest of reassembled payloads) +sha2 = "0.10" +hex = "0.4" + # Error handling thiserror = "2.0" async-trait = "0.1" diff --git a/src/core/error.rs b/src/core/error.rs index fe8891a..505a17d 100644 --- a/src/core/error.rs +++ b/src/core/error.rs @@ -34,6 +34,10 @@ pub enum Error { #[error("Serialization error: {0}")] Serialization(#[from] serde_json::Error), + /// CEP-22 oversized payload transfer error (framing/reassembly) + #[error("Oversized transfer error: {0}")] + OversizedTransfer(#[from] crate::transport::oversized_transfer::OversizedTransferError), + /// Generic error #[error("{0}")] Other(String), diff --git a/src/core/validation.rs b/src/core/validation.rs index 9e6dc5d..355c60d 100644 --- a/src/core/validation.rs +++ b/src/core/validation.rs @@ -19,6 +19,29 @@ pub fn validate_and_parse(content: &str) -> Option { validate_message(&value) } +/// Validate size against a custom byte bound, then parse into a [`JsonRpcMessage`]. +/// +/// Unlike [`validate_and_parse`], which enforces the 1 MB per-event cap +/// ([`MAX_MESSAGE_SIZE`]), this bounds `content` to `max_bytes` — the receiver +/// policy's `maxTransferBytes` (100 MiB default). It is the dedicated entrypoint +/// for **reassembled** CEP-22 oversized payloads, which legitimately exceed the +/// per-event cap (the very limit the transfer profile works around). The bound +/// keeps a single ceiling on reassembled-payload memory rather than leaving it +/// unbounded. +pub fn validate_and_parse_oversized(content: &str, max_bytes: usize) -> Option { + if content.len() > max_bytes { + tracing::warn!( + "Oversized message exceeds max transfer bytes: {} > {}", + content.len(), + max_bytes + ); + return None; + } + + let value: serde_json::Value = serde_json::from_str(content).ok()?; + validate_message(&value) +} + /// Validate that a JSON value is a well-formed JSON-RPC 2.0 message. /// /// Checks: @@ -98,4 +121,35 @@ mod tests { fn test_validate_and_parse_rejects_invalid_json() { assert!(validate_and_parse("not json").is_none()); } + + #[test] + fn test_validate_and_parse_oversized_bypasses_1mb_cap() { + // A valid message larger than the 1 MB per-event cap. + let big_value = "m".repeat(MAX_MESSAGE_SIZE + 1024); + let content = format!(r#"{{"jsonrpc":"2.0","id":1,"result":{{"value":"{big_value}"}}}}"#); + assert!(content.len() > MAX_MESSAGE_SIZE); + + // The standard entrypoint rejects it on size... + assert!(validate_and_parse(&content).is_none()); + // ...but the oversized entrypoint accepts it under a higher bound. + let parsed = validate_and_parse_oversized(&content, 100 * 1024 * 1024).unwrap(); + assert!(parsed.is_response()); + } + + #[test] + fn test_validate_and_parse_oversized_enforces_its_own_bound() { + let content = r#"{"jsonrpc":"2.0","id":1,"method":"tools/list"}"#; + // Rejected when the content exceeds the supplied max_bytes. + assert!(validate_and_parse_oversized(content, 8).is_none()); + // Accepted under a sufficient bound. + assert!(validate_and_parse_oversized(content, 1024) + .unwrap() + .is_request()); + } + + #[test] + fn test_validate_and_parse_oversized_rejects_invalid_version() { + let content = r#"{"jsonrpc":"1.0","id":1,"method":"test"}"#; + assert!(validate_and_parse_oversized(content, 1024).is_none()); + } } diff --git a/src/transport/mod.rs b/src/transport/mod.rs index a5d53e8..7b17104 100644 --- a/src/transport/mod.rs +++ b/src/transport/mod.rs @@ -6,6 +6,7 @@ pub mod base; pub mod client; pub mod discovery_tags; +pub mod oversized_transfer; pub mod server; pub use client::{ClientCorrelationStore, NostrClientTransport, NostrClientTransportConfig}; diff --git a/src/transport/oversized_transfer/codec.rs b/src/transport/oversized_transfer/codec.rs new file mode 100644 index 0000000..f5b1bf4 --- /dev/null +++ b/src/transport/oversized_transfer/codec.rs @@ -0,0 +1,360 @@ +//! Pure framing codec: digest, UTF-8 char-aware splitting, and frame building. +//! +//! Ports `sdk/src/transport/oversized-transfer/sender.ts`. No transport or I/O — +//! given a serialized JSON-RPC string this produces the ordered sequence of +//! `notifications/progress` frames a sender publishes. + +use sha2::{Digest, Sha256}; + +use crate::core::types::JsonRpcNotification; + +use super::constants::{ACCEPT_PROGRESS, DEFAULT_CHUNK_SIZE, DIGEST_PREFIX, START_PROGRESS}; +use super::errors::OversizedTransferError; +use super::frame::{CompletionMode, OversizedFrame}; + +/// Options controlling how a payload is split into frames. +#[derive(Debug, Clone)] +pub struct OversizedSenderOptions { + /// The MCP `progressToken` stamped on every frame in the transfer. + pub progress_token: String, + /// Per-chunk byte size. Defaults to [`DEFAULT_CHUNK_SIZE`]. + pub chunk_size_bytes: usize, + /// Whether to reserve the `accept` slot (progress 2) for a handshake, so the + /// first `chunk` starts at progress 3. When `false`, chunks start at 2. + pub needs_accept_handshake: bool, +} + +impl OversizedSenderOptions { + /// Create options for `progress_token` with default chunk size and no handshake. + pub fn new(progress_token: impl Into) -> Self { + Self { + progress_token: progress_token.into(), + chunk_size_bytes: DEFAULT_CHUNK_SIZE, + needs_accept_handshake: false, + } + } + + /// Override the per-chunk byte size. + pub fn with_chunk_size(mut self, chunk_size_bytes: usize) -> Self { + self.chunk_size_bytes = chunk_size_bytes; + self + } + + /// Set whether the `accept` handshake slot is reserved. + pub fn with_accept_handshake(mut self, needs_accept_handshake: bool) -> Self { + self.needs_accept_handshake = needs_accept_handshake; + self + } +} + +/// The ordered frames produced from a serialized payload. +#[derive(Debug, Clone)] +pub struct BuiltOversizedFrames { + /// The opening `start` frame (progress [`START_PROGRESS`]). + pub start: JsonRpcNotification, + /// The `chunk` frames in ascending `progress` order. + pub chunks: Vec, + /// The closing `end` frame. + pub end: JsonRpcNotification, +} + +impl BuiltOversizedFrames { + /// Total number of frames (`start` + chunks + `end`). + pub fn frame_count(&self) -> usize { + self.chunks.len() + 2 + } + + /// Consume into a flat vector in canonical send order: `start`, chunks…, `end`. + pub fn into_ordered(self) -> Vec { + let mut frames = Vec::with_capacity(self.frame_count()); + frames.push(self.start); + frames.extend(self.chunks); + frames.push(self.end); + frames + } +} + +/// UTF-8 byte length of a string (Rust strings are already UTF-8). +pub fn utf8_byte_len(value: &str) -> usize { + value.len() +} + +/// Compute the CEP-22 digest of `value`: `"sha256:"` + lowercase hex of the +/// SHA-256 of its UTF-8 bytes. +pub fn sha256_digest(value: &str) -> String { + let mut hasher = Sha256::new(); + hasher.update(value.as_bytes()); + format!("{DIGEST_PREFIX}{}", hex::encode(hasher.finalize())) +} + +/// Split `value` into fragments each at most `max_bytes` UTF-8 bytes, never +/// breaking a multibyte codepoint across a boundary. +/// +/// Concatenating the fragments in order reproduces `value` exactly. Returns an +/// error if `max_bytes` is zero or a single character is larger than `max_bytes`. +pub fn split_string_by_byte_size( + value: &str, + max_bytes: usize, +) -> Result, OversizedTransferError> { + if max_bytes == 0 { + return Err(OversizedTransferError::Policy( + "chunk_size_bytes must be greater than zero".to_string(), + )); + } + + let mut chunks: Vec = Vec::new(); + let mut current = String::new(); + let mut current_bytes = 0usize; + + for ch in value.chars() { + let char_bytes = ch.len_utf8(); + if char_bytes > max_bytes { + return Err(OversizedTransferError::Policy(format!( + "Unable to split message: single character exceeds chunk size ({char_bytes} > {max_bytes})" + ))); + } + + if current_bytes > 0 && current_bytes + char_bytes > max_bytes { + chunks.push(std::mem::take(&mut current)); + current_bytes = 0; + } + + current.push(ch); + current_bytes += char_bytes; + } + + if !current.is_empty() { + chunks.push(current); + } + + Ok(chunks) +} + +/// Build the ordered `start` / `chunk…` / `end` frames for `serialized`. +/// +/// Serializes once at the call site (the caller passes the exact JSON-RPC +/// string), then: computes the digest over that string, char-aware splits it, +/// and lays the chunks out on `progress` slots. When +/// [`needs_accept_handshake`](OversizedSenderOptions::needs_accept_handshake) is +/// set, progress 2 is reserved for the receiver's `accept` and chunks begin at 3. +pub fn build_oversized_frames( + serialized: &str, + options: &OversizedSenderOptions, +) -> crate::core::error::Result { + let total_bytes = utf8_byte_len(serialized) as u64; + let digest = sha256_digest(serialized); + + let text_chunks = split_string_by_byte_size(serialized, options.chunk_size_bytes)?; + let total_chunks = text_chunks.len() as u64; + + // No-handshake: chunks reuse the reserved accept slot (progress 2). + // Handshake: accept occupies slot 2, so chunks begin at slot 3. + let chunk_base_progress = if options.needs_accept_handshake { + ACCEPT_PROGRESS + 1 + } else { + ACCEPT_PROGRESS + }; + + let token = options.progress_token.as_str(); + + let start = OversizedFrame::Start { + completion_mode: CompletionMode::Render, + digest, + total_bytes, + total_chunks, + } + .into_progress_notification(token, START_PROGRESS, Some("starting oversized transfer"))?; + + let mut chunks = Vec::with_capacity(text_chunks.len()); + for (i, data) in text_chunks.into_iter().enumerate() { + let progress = chunk_base_progress + i as u64; + let frame = OversizedFrame::Chunk { data }; + chunks.push(frame.into_progress_notification(token, progress, None)?); + } + + let end = OversizedFrame::End.into_progress_notification( + token, + chunk_base_progress + total_chunks, + Some("oversized transfer complete"), + )?; + + Ok(BuiltOversizedFrames { start, chunks, end }) +} + +#[cfg(test)] +mod tests { + use super::*; + use serde_json::Value; + + fn frame_type(notification: &JsonRpcNotification) -> String { + notification.params.as_ref().unwrap()["cvm"]["frameType"] + .as_str() + .unwrap() + .to_string() + } + + fn progress(notification: &JsonRpcNotification) -> u64 { + notification.params.as_ref().unwrap()["progress"] + .as_u64() + .unwrap() + } + + // ── digest ────────────────────────────────────────────────────── + + #[test] + fn sha256_digest_known_vectors() { + // Reference SHA-256 vectors with the CEP-22 "sha256:" prefix. + assert_eq!( + sha256_digest(""), + "sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" + ); + assert_eq!( + sha256_digest("abc"), + "sha256:ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad" + ); + } + + #[test] + fn sha256_digest_has_prefix_and_lowercase_hex() { + let digest = sha256_digest("hello world"); + assert!(digest.starts_with("sha256:")); + let hex_part = &digest["sha256:".len()..]; + assert_eq!(hex_part.len(), 64); + assert!(hex_part + .chars() + .all(|c| c.is_ascii_hexdigit() && !c.is_ascii_uppercase())); + } + + #[test] + fn utf8_byte_len_counts_bytes_not_chars() { + assert_eq!(utf8_byte_len("abc"), 3); + assert_eq!(utf8_byte_len("é"), 2); + assert_eq!(utf8_byte_len("🦀"), 4); + assert_eq!(utf8_byte_len("a🦀"), 5); + } + + // ── split_string_by_byte_size ─────────────────────────────────── + + #[test] + fn split_ascii_exact_and_remainder() { + let chunks = split_string_by_byte_size("abcdefghij", 4).unwrap(); + assert_eq!(chunks, vec!["abcd", "efgh", "ij"]); + assert_eq!(chunks.concat(), "abcdefghij"); + } + + #[test] + fn split_empty_yields_no_chunks() { + assert!(split_string_by_byte_size("", 4).unwrap().is_empty()); + } + + #[test] + fn split_rejects_zero_max() { + let err = split_string_by_byte_size("abc", 0).unwrap_err(); + assert!(matches!(err, OversizedTransferError::Policy(_))); + } + + #[test] + fn split_multibyte_never_breaks_codepoints() { + // Mixed 1/2/3/4-byte codepoints; chunk size 5 forces boundaries mid-string. + let original = "aé🦀b日x☃yz🦀"; + let chunks = split_string_by_byte_size(original, 5).unwrap(); + + // Concatenation in order reproduces the exact bytes. + assert_eq!(chunks.concat(), original); + // No chunk exceeds the byte budget, and every chunk is valid UTF-8 + // (guaranteed by `String`, i.e. no codepoint was split). + for chunk in &chunks { + assert!(utf8_byte_len(chunk) <= 5, "chunk {chunk:?} exceeds 5 bytes"); + assert!(!chunk.is_empty()); + } + } + + #[test] + fn split_packs_multibyte_up_to_budget() { + // Each 🦀 is 4 bytes; with a budget of 8 two fit per chunk. + assert_eq!( + split_string_by_byte_size("🦀🦀🦀", 8).unwrap(), + vec!["🦀🦀", "🦀"] + ); + } + + #[test] + fn split_rejects_single_char_larger_than_budget() { + // 🦀 is 4 bytes; a 3-byte budget cannot hold it. + let err = split_string_by_byte_size("🦀", 3).unwrap_err(); + assert!(matches!(err, OversizedTransferError::Policy(_))); + } + + // ── build_oversized_frames ────────────────────────────────────── + + #[test] + fn build_lays_out_progress_slots_without_handshake() { + let opts = OversizedSenderOptions::new("tok").with_chunk_size(4); + let frames = build_oversized_frames("hello world", &opts).unwrap(); + + // "hello world" (11 bytes) / 4 → 3 chunks. + assert_eq!(frames.chunks.len(), 3); + assert_eq!(frames.frame_count(), 5); + + assert_eq!(progress(&frames.start), 1); + assert_eq!(frame_type(&frames.start), "start"); + // No handshake: chunks reuse the reserved accept slot (start at 2). + assert_eq!(progress(&frames.chunks[0]), 2); + assert_eq!(progress(&frames.chunks[1]), 3); + assert_eq!(progress(&frames.chunks[2]), 4); + assert_eq!(frame_type(&frames.chunks[0]), "chunk"); + assert_eq!(progress(&frames.end), 5); + assert_eq!(frame_type(&frames.end), "end"); + } + + #[test] + fn build_reserves_accept_slot_with_handshake() { + let opts = OversizedSenderOptions::new("tok") + .with_chunk_size(4) + .with_accept_handshake(true); + let frames = build_oversized_frames("hello world", &opts).unwrap(); + + assert_eq!(progress(&frames.start), 1); + // Handshake: slot 2 reserved for accept, chunks begin at 3. + assert_eq!(progress(&frames.chunks[0]), 3); + assert_eq!(progress(&frames.chunks[2]), 5); + assert_eq!(progress(&frames.end), 6); + } + + #[test] + fn build_start_frame_declares_digest_bytes_chunks() { + let opts = OversizedSenderOptions::new("tok").with_chunk_size(4); + let frames = build_oversized_frames("hello world", &opts).unwrap(); + let cvm = &frames.start.params.as_ref().unwrap()["cvm"]; + + assert_eq!(cvm["type"].as_str(), Some("oversized-transfer")); + assert_eq!(cvm["completionMode"], Value::String("render".to_string())); + assert_eq!(cvm["digest"], Value::String(sha256_digest("hello world"))); + assert_eq!(cvm["totalBytes"].as_u64(), Some(11)); + assert_eq!(cvm["totalChunks"].as_u64(), Some(3)); + } + + #[test] + fn build_propagates_single_char_over_budget_error() { + let opts = OversizedSenderOptions::new("tok").with_chunk_size(3); + let err = build_oversized_frames("🦀", &opts).unwrap_err(); + // Surfaced through the crate error as an oversized-transfer policy error. + assert!(matches!( + err, + crate::core::error::Error::OversizedTransfer(OversizedTransferError::Policy(_)) + )); + } + + #[test] + fn build_into_ordered_is_start_chunks_end() { + let opts = OversizedSenderOptions::new("tok").with_chunk_size(4); + let frames = build_oversized_frames("hello world", &opts).unwrap(); + let ordered = frames.into_ordered(); + assert_eq!(ordered.len(), 5); + assert_eq!(frame_type(&ordered[0]), "start"); + assert_eq!(frame_type(&ordered[4]), "end"); + // Progress is strictly increasing across the whole sequence. + let progresses: Vec = ordered.iter().map(progress).collect(); + assert_eq!(progresses, vec![1, 2, 3, 4, 5]); + } +} diff --git a/src/transport/oversized_transfer/constants.rs b/src/transport/oversized_transfer/constants.rs new file mode 100644 index 0000000..ab308dc --- /dev/null +++ b/src/transport/oversized_transfer/constants.rs @@ -0,0 +1,60 @@ +//! CEP-22 oversized-transfer constants. +//! +//! The normative CEP leaves these numeric defaults to implementers, so we adopt +//! the TypeScript SDK's values (`sdk/src/transport/oversized-transfer/constants.ts`) +//! for cross-implementation interop. + +/// The `cvm.type` discriminator carried in every oversized-transfer frame. +pub const OVERSIZED_TRANSFER_TYPE: &str = "oversized-transfer"; + +/// Prefix applied to SHA-256 digest values (lowercase hex follows). +pub const DIGEST_PREFIX: &str = "sha256:"; + +/// JSON-RPC method that carries oversized-transfer frames in `params.cvm`. +pub const NOTIFICATIONS_PROGRESS_METHOD: &str = "notifications/progress"; + +/// Default per-chunk data size (bytes). +/// +/// Conservative: leaves ~16 KiB of headroom under the ~64 KiB relay event +/// threshold so a single gift-wrapped frame stays well below it. +pub const DEFAULT_CHUNK_SIZE: usize = 48_000; + +/// Serialized byte length at or above which the sender switches to oversized transfer. +pub const DEFAULT_OVERSIZED_THRESHOLD: usize = 48_000; + +/// Default upper bound on the total reassembled payload a receiver will accept (100 MiB). +pub const DEFAULT_MAX_TRANSFER_BYTES: u64 = 100 * 1024 * 1024; + +/// Default upper bound on the number of chunks a receiver will accept. +pub const DEFAULT_MAX_TRANSFER_CHUNKS: u64 = 10_000; + +/// Default upper bound on concurrently active receiver-side transfers. +pub const DEFAULT_MAX_CONCURRENT_TRANSFERS: usize = 64; + +/// Default hard timeout for an in-flight transfer (milliseconds). +/// +/// Not enforced by the PR-1 pure engine (no timers yet); wired into the +/// transport watchdog in a later PR. +pub const DEFAULT_TRANSFER_TIMEOUT_MS: u64 = 5 * 60 * 1000; + +/// Default maximum forward gap between the next expected chunk and an +/// out-of-order chunk that will still be buffered. +pub const DEFAULT_MAX_OUT_OF_ORDER_WINDOW: u64 = 21; + +/// Default maximum number of buffered out-of-order chunks. +pub const DEFAULT_MAX_OUT_OF_ORDER_CHUNKS: usize = 42; + +/// Default timeout a sender waits for an `accept` frame before giving up (milliseconds). +/// +/// Used by the sender handshake in a later PR; defined here for parity. +pub const DEFAULT_ACCEPT_TIMEOUT_MS: u64 = 30_000; + +/// Canonical progress slot for the `start` frame. +pub const START_PROGRESS: u64 = 1; + +/// Progress slot reserved for the `accept` frame. +/// +/// In the handshake case the `accept` frame occupies this slot and the first +/// `chunk` starts at [`START_PROGRESS`] + 2. In the no-handshake case no +/// `accept` is sent, so this slot is reused as the first `chunk`. +pub const ACCEPT_PROGRESS: u64 = 2; diff --git a/src/transport/oversized_transfer/errors.rs b/src/transport/oversized_transfer/errors.rs new file mode 100644 index 0000000..baf9a23 --- /dev/null +++ b/src/transport/oversized_transfer/errors.rs @@ -0,0 +1,54 @@ +//! Error taxonomy for CEP-22 oversized transfers. +//! +//! Mirrors the TypeScript SDK's error classes +//! (`sdk/src/transport/oversized-transfer/errors.ts`) so failure classification +//! is identical across implementations. Surfaced through the crate-level +//! [`crate::Error`] via a `#[from]` conversion. + +/// Errors raised while building, framing, or reassembling an oversized transfer. +#[derive(Debug, Clone, PartialEq, Eq, thiserror::Error)] +pub enum OversizedTransferError { + /// The remote peer aborted the transfer (terminal). + #[error("Transfer aborted (token: {token}){}", .reason.as_deref().map(|r| format!(": {r}")).unwrap_or_default())] + Abort { + /// The `progressToken` of the aborted transfer. + token: String, + /// Optional advisory reason supplied in the `abort` frame. + reason: Option, + }, + + /// A frame violated a declared or configured policy limit + /// (`totalBytes`, `totalChunks`, concurrency, out-of-order bounds, chunk size). + #[error("Oversized transfer policy violation: {0}")] + Policy(String), + + /// The byte length or SHA-256 digest of the reassembled payload did not match + /// the values declared in the `start` frame. + #[error("Oversized transfer integrity error: {0}")] + Digest(String), + + /// Chunks could not be reassembled (missing frames, unresolved gaps, or the + /// reassembled payload is not a valid JSON-RPC message). + #[error("Oversized transfer reassembly error: {0}")] + Reassembly(String), + + /// Frames violated CEP-22 sequencing rules (bad progress ordering, + /// duplicate `start`, conflicting duplicate chunk, missing token). + #[error("Oversized transfer sequence error: {0}")] + Sequence(String), +} + +impl OversizedTransferError { + /// Construct an [`OversizedTransferError::Abort`]. + pub fn abort(token: impl Into, reason: Option) -> Self { + Self::Abort { + token: token.into(), + reason, + } + } + + /// Returns `true` if this is a terminal [`abort`](OversizedTransferError::Abort). + pub fn is_abort(&self) -> bool { + matches!(self, Self::Abort { .. }) + } +} diff --git a/src/transport/oversized_transfer/frame.rs b/src/transport/oversized_transfer/frame.rs new file mode 100644 index 0000000..b5242e2 --- /dev/null +++ b/src/transport/oversized_transfer/frame.rs @@ -0,0 +1,247 @@ +//! CEP-22 `cvm` frame types and their `notifications/progress` envelope. +//! +//! A frame is the ContextVM `cvm` extension object embedded in the `params` of +//! an MCP `notifications/progress` notification. The outer `params` also carry +//! the `progressToken` and a strictly-monotonic `progress` value (the canonical +//! reassembly index). See `frame` shapes in +//! `sdk/src/transport/oversized-transfer/types.ts`. + +use serde::{Deserialize, Serialize}; +use serde_json::{Map, Value}; + +use crate::core::types::JsonRpcNotification; + +use super::constants::{NOTIFICATIONS_PROGRESS_METHOD, OVERSIZED_TRANSFER_TYPE}; + +/// Completion mode of a `start` frame. CEP-22 v1 mandates `render`. +#[derive(Debug, Clone, Copy, PartialEq, Eq, Default, Serialize, Deserialize)] +#[serde(rename_all = "lowercase")] +pub enum CompletionMode { + /// The only completion mode defined in v1: the receiver renders the + /// reassembled payload as a single MCP message. + #[default] + Render, +} + +/// A CEP-22 oversized-transfer frame (the `cvm` object). +/// +/// Internally tagged on `frameType`. The constant `cvm.type` +/// (`"oversized-transfer"`) is handled separately by +/// [`to_cvm_value`](Self::to_cvm_value) / [`from_cvm_value`](Self::from_cvm_value) +/// rather than encoded as an enum field. +#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] +#[serde(tag = "frameType", rename_all = "camelCase")] +pub enum OversizedFrame { + /// Opens a transfer: declares the digest, total byte length, and chunk count. + #[serde(rename_all = "camelCase")] + Start { + /// Completion mode (MUST be [`CompletionMode::Render`] in v1). + completion_mode: CompletionMode, + /// `"sha256:"` + lowercase hex of the SHA-256 of the serialized payload. + digest: String, + /// Total UTF-8 byte length of the serialized JSON-RPC payload. + total_bytes: u64, + /// Number of `chunk` frames that follow. + total_chunks: u64, + }, + /// Receiver handshake acknowledgement; lets the sender begin sending chunks. + Accept, + /// One ordered fragment of the serialized JSON-RPC string. + Chunk { + /// A UTF-8 substring fragment; concatenating chunks in `progress` order + /// reproduces the exact serialized payload bytes. + data: String, + }, + /// Closes a transfer; the receiver validates and materializes the payload. + End, + /// Terminates a transfer early (terminal). + Abort { + /// Optional advisory reason. + #[serde(default, skip_serializing_if = "Option::is_none")] + reason: Option, + }, +} + +impl OversizedFrame { + /// Returns the `frameType` discriminator string for this frame. + pub fn frame_type(&self) -> &'static str { + match self { + Self::Start { .. } => "start", + Self::Accept => "accept", + Self::Chunk { .. } => "chunk", + Self::End => "end", + Self::Abort { .. } => "abort", + } + } + + /// Serialize this frame into a `cvm` object [`Value`], injecting the constant + /// `type` discriminator (`"oversized-transfer"`). + pub fn to_cvm_value(&self) -> Result { + let mut value = serde_json::to_value(self)?; + if let Value::Object(map) = &mut value { + map.insert( + "type".to_string(), + Value::String(OVERSIZED_TRANSFER_TYPE.to_string()), + ); + } + Ok(value) + } + + /// Parse a `cvm` object [`Value`] into a typed frame, verifying the `type` + /// discriminator. Returns `None` when `value` is not an oversized-transfer + /// frame or fails to parse. + pub fn from_cvm_value(value: &Value) -> Option { + if value.get("type").and_then(Value::as_str) != Some(OVERSIZED_TRANSFER_TYPE) { + return None; + } + serde_json::from_value(value.clone()).ok() + } + + /// Returns `true` when `value` structurally looks like an oversized-transfer + /// frame (`type == "oversized-transfer"` and a string `frameType`). + /// + /// Mirrors the TS `isOversizedTransferFrame` structural narrowing. + pub fn is_frame_value(value: &Value) -> bool { + value.get("type").and_then(Value::as_str) == Some(OVERSIZED_TRANSFER_TYPE) + && value.get("frameType").and_then(Value::as_str).is_some() + } + + /// Wrap this frame in a `notifications/progress` [`JsonRpcNotification`]. + /// + /// Builds the outer `params` with `progressToken`, `progress`, an optional + /// human-readable `message` (non-normative UX), and the `cvm` frame. + pub fn into_progress_notification( + &self, + progress_token: &str, + progress: u64, + message: Option<&str>, + ) -> Result { + let mut params = Map::new(); + params.insert( + "progressToken".to_string(), + Value::String(progress_token.to_string()), + ); + params.insert("progress".to_string(), Value::Number(progress.into())); + if let Some(message) = message { + params.insert("message".to_string(), Value::String(message.to_string())); + } + params.insert("cvm".to_string(), self.to_cvm_value()?); + + Ok(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: NOTIFICATIONS_PROGRESS_METHOD.to_string(), + params: Some(Value::Object(params)), + }) + } +} + +#[cfg(test)] +mod tests { + use super::*; + use serde_json::json; + + fn assert_cvm_roundtrip(frame: OversizedFrame) { + let value = frame.to_cvm_value().unwrap(); + assert_eq!(value["type"], json!("oversized-transfer")); + assert_eq!(value["frameType"], json!(frame.frame_type())); + assert_eq!(OversizedFrame::from_cvm_value(&value), Some(frame)); + } + + #[test] + fn start_frame_serializes_with_camel_case_fields() { + let frame = OversizedFrame::Start { + completion_mode: CompletionMode::Render, + digest: "sha256:abcd".to_string(), + total_bytes: 100, + total_chunks: 3, + }; + let value = frame.to_cvm_value().unwrap(); + assert_eq!(value["type"], json!("oversized-transfer")); + assert_eq!(value["frameType"], json!("start")); + assert_eq!(value["completionMode"], json!("render")); + assert_eq!(value["digest"], json!("sha256:abcd")); + assert_eq!(value["totalBytes"], json!(100)); + assert_eq!(value["totalChunks"], json!(3)); + assert_cvm_roundtrip(frame); + } + + #[test] + fn all_frame_variants_roundtrip() { + assert_cvm_roundtrip(OversizedFrame::Start { + completion_mode: CompletionMode::Render, + digest: "sha256:abcd".to_string(), + total_bytes: 8, + total_chunks: 2, + }); + assert_cvm_roundtrip(OversizedFrame::Accept); + assert_cvm_roundtrip(OversizedFrame::Chunk { + data: "payload".to_string(), + }); + assert_cvm_roundtrip(OversizedFrame::End); + assert_cvm_roundtrip(OversizedFrame::Abort { + reason: Some("boom".to_string()), + }); + assert_cvm_roundtrip(OversizedFrame::Abort { reason: None }); + } + + #[test] + fn abort_reason_omitted_when_none() { + let value = OversizedFrame::Abort { reason: None } + .to_cvm_value() + .unwrap(); + assert!(!value.as_object().unwrap().contains_key("reason")); + } + + #[test] + fn from_cvm_value_rejects_wrong_type() { + let value = json!({ "type": "something-else", "frameType": "end" }); + assert_eq!(OversizedFrame::from_cvm_value(&value), None); + assert!(!OversizedFrame::is_frame_value(&value)); + } + + #[test] + fn from_cvm_value_rejects_unknown_frame_type() { + let value = json!({ "type": "oversized-transfer", "frameType": "bogus" }); + assert_eq!(OversizedFrame::from_cvm_value(&value), None); + } + + #[test] + fn is_frame_value_requires_type_and_frame_type() { + assert!(OversizedFrame::is_frame_value( + &json!({ "type": "oversized-transfer", "frameType": "chunk", "data": "x" }) + )); + assert!(!OversizedFrame::is_frame_value( + &json!({ "type": "oversized-transfer" }) + )); + assert!(!OversizedFrame::is_frame_value( + &json!({ "frameType": "chunk" }) + )); + assert!(!OversizedFrame::is_frame_value(&json!("not an object"))); + } + + #[test] + fn into_progress_notification_builds_progress_envelope() { + let notification = OversizedFrame::Chunk { + data: "frag".to_string(), + } + .into_progress_notification("tok-1", 7, Some("hi")) + .unwrap(); + + assert_eq!(notification.method, "notifications/progress"); + let params = notification.params.as_ref().unwrap(); + assert_eq!(params["progressToken"], json!("tok-1")); + assert_eq!(params["progress"], json!(7)); + assert_eq!(params["message"], json!("hi")); + assert_eq!(params["cvm"]["frameType"], json!("chunk")); + assert_eq!(params["cvm"]["data"], json!("frag")); + } + + #[test] + fn into_progress_notification_omits_absent_message() { + let notification = OversizedFrame::End + .into_progress_notification("tok-1", 9, None) + .unwrap(); + let params = notification.params.as_ref().unwrap(); + assert!(!params.as_object().unwrap().contains_key("message")); + } +} diff --git a/src/transport/oversized_transfer/mod.rs b/src/transport/oversized_transfer/mod.rs new file mode 100644 index 0000000..66759ac --- /dev/null +++ b/src/transport/oversized_transfer/mod.rs @@ -0,0 +1,57 @@ +//! CEP-22 oversized payload transfer — transport-agnostic framing engine. +//! +//! A serialized JSON-RPC message too large to publish as a single relay event is +//! split into an ordered sequence of frames carried inside MCP +//! `notifications/progress` messages, transmitted as ordinary kind-`25910` +//! events, and reassembled by the receiver after SHA-256 + size validation. +//! See the CEP-22 spec and the TypeScript reference at +//! `sdk/src/transport/oversized-transfer/`. +//! +//! This module is the **pure engine**: building frames ([`codec`]) and +//! reassembling them ([`receiver`]). It carries no transport, I/O, or timers — +//! those are wired in by the client and server transports in later PRs. Until +//! then the module is intentionally unused by the rest of the crate. +//! +//! ``` +//! use contextvm_sdk::transport::oversized_transfer::{ +//! build_oversized_frames, OversizedSenderOptions, OversizedTransferReceiver, +//! }; +//! use contextvm_sdk::core::types::{JsonRpcMessage, JsonRpcResponse}; +//! use serde_json::json; +//! +//! let message = JsonRpcMessage::Response(JsonRpcResponse { +//! jsonrpc: "2.0".to_string(), +//! id: json!(1), +//! result: json!({ "value": "a large payload" }), +//! }); +//! let serialized = serde_json::to_string(&message).unwrap(); +//! +//! // Sender: split into ordered frames. +//! let opts = OversizedSenderOptions::new("token-1").with_chunk_size(8); +//! let frames = build_oversized_frames(&serialized, &opts).unwrap(); +//! +//! // Receiver: feed frames back; the last frame yields the reassembled message. +//! let mut receiver = OversizedTransferReceiver::new(); +//! let mut reassembled = None; +//! for frame in frames.into_ordered() { +//! if let Some(message) = receiver.process_frame(&frame).unwrap() { +//! reassembled = Some(message); +//! } +//! } +//! assert_eq!(reassembled.unwrap().id(), message.id()); +//! ``` + +pub mod codec; +pub mod constants; +pub mod errors; +pub mod frame; +pub mod receiver; + +pub use codec::{ + build_oversized_frames, sha256_digest, split_string_by_byte_size, utf8_byte_len, + BuiltOversizedFrames, OversizedSenderOptions, +}; +pub use constants::*; +pub use errors::OversizedTransferError; +pub use frame::{CompletionMode, OversizedFrame}; +pub use receiver::{OversizedTransferReceiver, TransferPolicy}; diff --git a/src/transport/oversized_transfer/receiver.rs b/src/transport/oversized_transfer/receiver.rs new file mode 100644 index 0000000..4b4f4e7 --- /dev/null +++ b/src/transport/oversized_transfer/receiver.rs @@ -0,0 +1,1083 @@ +//! Stateful reassembly engine for CEP-22 oversized transfers. +//! +//! Ports `sdk/src/transport/oversized-transfer/receiver.ts`. Feeds inbound +//! `notifications/progress` frames through [`OversizedTransferReceiver::process_frame`] +//! and returns the reassembled [`JsonRpcMessage`] once a transfer completes and +//! passes byte-length, SHA-256, and JSON-RPC validation. +//! +//! This PR-1 engine is **pure and synchronous**: it owns no timers. The hard +//! per-transfer watchdog (`transfer_timeout_ms`) and the sender-side +//! accept-waiter are added when the engine is wired into the transport. + +use std::collections::{BTreeMap, HashMap}; + +use serde_json::Value; + +use crate::core::types::{JsonRpcMessage, JsonRpcNotification}; +use crate::core::validation::validate_and_parse_oversized; + +use super::codec::sha256_digest; +use super::constants::{ + DEFAULT_MAX_CONCURRENT_TRANSFERS, DEFAULT_MAX_OUT_OF_ORDER_CHUNKS, + DEFAULT_MAX_OUT_OF_ORDER_WINDOW, DEFAULT_MAX_TRANSFER_BYTES, DEFAULT_MAX_TRANSFER_CHUNKS, + DEFAULT_TRANSFER_TIMEOUT_MS, DIGEST_PREFIX, +}; +use super::errors::OversizedTransferError; +use super::frame::OversizedFrame; + +/// Receiver-side admission and out-of-order policy. +/// +/// Mirrors the TS `TransferPolicy`. Construct via [`TransferPolicy::default`] +/// and override individual fields with struct-update syntax. +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub struct TransferPolicy { + /// Maximum total reassembled payload size accepted (bytes). + pub max_transfer_bytes: u64, + /// Maximum number of chunks accepted. + pub max_transfer_chunks: u64, + /// Maximum number of concurrently active transfers. + pub max_concurrent_transfers: usize, + /// Maximum forward gap from the contiguous frontier that is still buffered. + pub max_out_of_order_window: u64, + /// Maximum number of buffered out-of-order chunks. + pub max_out_of_order_chunks: usize, + /// Hard per-transfer timeout (milliseconds). Reserved for the transport + /// watchdog in a later PR; the pure engine does not enforce it. + pub transfer_timeout_ms: u64, +} + +impl Default for TransferPolicy { + fn default() -> Self { + Self { + max_transfer_bytes: DEFAULT_MAX_TRANSFER_BYTES, + max_transfer_chunks: DEFAULT_MAX_TRANSFER_CHUNKS, + max_concurrent_transfers: DEFAULT_MAX_CONCURRENT_TRANSFERS, + max_out_of_order_window: DEFAULT_MAX_OUT_OF_ORDER_WINDOW, + max_out_of_order_chunks: DEFAULT_MAX_OUT_OF_ORDER_CHUNKS, + transfer_timeout_ms: DEFAULT_TRANSFER_TIMEOUT_MS, + } + } +} + +/// In-flight state for a single transfer, keyed by `progressToken`. +#[derive(Debug)] +struct ActiveTransfer { + digest: String, + total_bytes: u64, + total_chunks: u64, + start_progress: u64, + accept_progress: Option, + first_chunk_progress: Option, + next_expected_chunk_progress: Option, + highest_observed_progress: u64, + /// Chunk fragments keyed by the outer `progress` value (canonical index). + chunks: BTreeMap, +} + +impl ActiveTransfer { + /// The progress slot the first chunk occupies, given handshake state. + fn first_chunk_slot(&self) -> u64 { + if self.accept_progress.is_some() { + self.start_progress + 2 + } else { + self.start_progress + 1 + } + } + + /// The next contiguous chunk slot the assembler is waiting for. + fn next_expected_chunk_progress(&self) -> u64 { + self.next_expected_chunk_progress + .unwrap_or_else(|| self.first_chunk_slot()) + } + + /// Recompute the contiguous-frontier bookkeeping after a chunk insert. + fn refresh_chunk_progress_state(&mut self) { + if self.chunks.is_empty() { + self.first_chunk_progress = None; + self.next_expected_chunk_progress = None; + return; + } + + let first = self.first_chunk_slot(); + let mut next = first; + while self.chunks.contains_key(&next) { + next += 1; + } + + self.first_chunk_progress = Some(first); + self.next_expected_chunk_progress = Some(next); + } + + /// Count of buffered chunks sitting beyond the contiguous frontier. + fn buffered_out_of_order_count(&self) -> usize { + match (self.first_chunk_progress, self.next_expected_chunk_progress) { + (Some(first), Some(next)) => self.chunks.len() - (next - first) as usize, + _ => 0, + } + } + + /// Whether every slot in `[first, first + total_chunks)` is present. + fn has_complete_chunk_range(&self, first: u64) -> bool { + (0..self.total_chunks).all(|i| self.chunks.contains_key(&(first + i))) + } + + /// Resolve the first chunk slot for assembly, tolerating the reserved accept + /// slot being used or skipped. Returns `None` if neither layout is complete. + fn assembly_first_chunk_progress(&self) -> Option { + let direct = self.start_progress + 1; + let accept_gated = self.start_progress + 2; + if self.has_complete_chunk_range(direct) { + Some(direct) + } else if self.has_complete_chunk_range(accept_gated) { + Some(accept_gated) + } else { + None + } + } + + /// Concatenate chunks in `progress` order. `None` on any unresolved gap. + fn assemble(&self) -> Option { + let first = self.assembly_first_chunk_progress()?; + let mut out = String::with_capacity(self.total_bytes as usize); + for i in 0..self.total_chunks { + out.push_str(self.chunks.get(&(first + i))?); + } + Some(out) + } +} + +/// Stateful CEP-22 reassembly engine. +/// +/// Tracks per-`progressToken` transfer state, enforces admission and +/// out-of-order policy, and validates integrity before surfacing a reassembled +/// message. Never surfaces partial payloads. +#[derive(Debug)] +pub struct OversizedTransferReceiver { + max_transfer_bytes: u64, + max_transfer_chunks: u64, + max_concurrent_transfers: usize, + max_out_of_order_window: u64, + max_out_of_order_chunks: usize, + transfers: HashMap, +} + +impl Default for OversizedTransferReceiver { + fn default() -> Self { + Self::new() + } +} + +impl OversizedTransferReceiver { + /// Create a receiver with the default [`TransferPolicy`]. + pub fn new() -> Self { + Self::with_policy(TransferPolicy::default()) + } + + /// Create a receiver with an explicit policy. + pub fn with_policy(policy: TransferPolicy) -> Self { + Self { + max_transfer_bytes: policy.max_transfer_bytes, + max_transfer_chunks: policy.max_transfer_chunks, + max_concurrent_transfers: policy.max_concurrent_transfers, + max_out_of_order_window: policy.max_out_of_order_window, + max_out_of_order_chunks: policy.max_out_of_order_chunks, + transfers: HashMap::new(), + } + } + + /// Number of currently active in-flight transfers. + pub fn active_transfer_count(&self) -> usize { + self.transfers.len() + } + + /// Release all in-flight transfer state. + pub fn clear(&mut self) { + self.transfers.clear(); + } + + /// Returns `true` when `notification` carries an oversized-transfer frame in + /// its `params.cvm` field. + pub fn is_oversized_frame(notification: &JsonRpcNotification) -> bool { + notification + .params + .as_ref() + .and_then(|params| params.get("cvm")) + .map(OversizedFrame::is_frame_value) + .unwrap_or(false) + } + + /// Process one inbound `notifications/progress` frame. + /// + /// Returns `Ok(Some(message))` once the transfer is complete and validated, + /// `Ok(None)` when more frames are needed (or the notification is not an + /// oversized frame), and `Err(..)` on abort, policy, integrity, sequence, or + /// reassembly failure. A failing or aborting transfer is cleaned up before + /// the error is returned. + pub fn process_frame( + &mut self, + notification: &JsonRpcNotification, + ) -> Result, OversizedTransferError> { + let params = match notification.params.as_ref() { + Some(params) => params, + None => return Ok(None), + }; + let cvm = match params.get("cvm") { + Some(cvm) => cvm, + None => return Ok(None), + }; + let frame = match OversizedFrame::from_cvm_value(cvm) { + Some(frame) => frame, + None => return Ok(None), + }; + + // The outer progressToken keys the transfer; the outer progress is the + // canonical ordering index. Both are validated before dispatch. + let token = token_to_string(params.get("progressToken")); + assert_valid_token(&token)?; + let progress = parse_progress(params.get("progress"), &token)?; + + match frame { + OversizedFrame::Start { + digest, + total_bytes, + total_chunks, + .. + } => self.handle_start(&token, progress, digest, total_bytes, total_chunks), + OversizedFrame::Accept => self.handle_accept(&token, progress), + OversizedFrame::Chunk { data } => self.handle_chunk(&token, progress, data), + OversizedFrame::End => self.handle_end(&token, progress), + OversizedFrame::Abort { reason } => self.handle_abort(&token, reason), + } + } + + fn handle_start( + &mut self, + token: &str, + progress: u64, + digest: String, + total_bytes: u64, + total_chunks: u64, + ) -> Result, OversizedTransferError> { + if self.transfers.contains_key(token) { + return Err(OversizedTransferError::Sequence(format!( + "Duplicate start frame for active transfer (token: {token})" + ))); + } + if total_bytes > self.max_transfer_bytes { + return Err(OversizedTransferError::Policy(format!( + "totalBytes {total_bytes} exceeds policy limit {} (token: {token})", + self.max_transfer_bytes + ))); + } + if total_chunks > self.max_transfer_chunks { + return Err(OversizedTransferError::Policy(format!( + "totalChunks {total_chunks} exceeds policy limit {} (token: {token})", + self.max_transfer_chunks + ))); + } + if self.transfers.len() >= self.max_concurrent_transfers { + return Err(OversizedTransferError::Policy(format!( + "Active transfers exceed policy limit {} (token: {token})", + self.max_concurrent_transfers + ))); + } + if !digest.starts_with(DIGEST_PREFIX) { + return Err(OversizedTransferError::Reassembly(format!( + "Invalid digest format in start frame (token: {token})" + ))); + } + + self.transfers.insert( + token.to_string(), + ActiveTransfer { + digest, + total_bytes, + total_chunks, + start_progress: progress, + accept_progress: None, + first_chunk_progress: None, + next_expected_chunk_progress: None, + highest_observed_progress: progress, + chunks: BTreeMap::new(), + }, + ); + Ok(None) + } + + fn handle_accept( + &mut self, + token: &str, + progress: u64, + ) -> Result, OversizedTransferError> { + // Dropping `transfer` on the error path is the cleanup (failTransfer). + let mut transfer = match self.transfers.remove(token) { + Some(transfer) => transfer, + // Late or duplicated accept frames are ignored after cleanup. + None => return Ok(None), + }; + + if progress <= transfer.start_progress { + return Err(OversizedTransferError::Sequence(format!( + "Accept frame progress must be greater than start progress (token: {token})" + ))); + } + + transfer.highest_observed_progress = transfer.highest_observed_progress.max(progress); + transfer.accept_progress = Some(progress); + self.transfers.insert(token.to_string(), transfer); + Ok(None) + } + + fn handle_chunk( + &mut self, + token: &str, + progress: u64, + data: String, + ) -> Result, OversizedTransferError> { + let max_window = self.max_out_of_order_window; + let max_ooo_chunks = self.max_out_of_order_chunks; + + let mut transfer = match self.transfers.remove(token) { + Some(transfer) => transfer, + // Late or duplicated chunk frames are ignored after cleanup. + None => return Ok(None), + }; + + let minimum_chunk_progress = transfer.start_progress + 1; + let maximum_chunk_progress = transfer.start_progress + transfer.total_chunks + 1; + + if progress < minimum_chunk_progress { + return Err(OversizedTransferError::Sequence(format!( + "Chunk progress must be greater than start progress (token: {token})" + ))); + } + + let next_expected = transfer.next_expected_chunk_progress(); + // i128 so a hostile `progress` near u64::MAX cannot overflow the subtraction. + let forward_gap = i128::from(progress) - i128::from(next_expected); + if forward_gap > i128::from(max_window) { + return Err(OversizedTransferError::Policy(format!( + "Out-of-order gap {forward_gap} exceeds policy limit {max_window} (token: {token})" + ))); + } + + if progress > maximum_chunk_progress { + return Err(OversizedTransferError::Sequence(format!( + "Chunk progress exceeds declared transfer bounds (token: {token})" + ))); + } + + if progress > transfer.start_progress + 2 + && !transfer.chunks.contains_key(&(transfer.start_progress + 1)) + && !transfer.chunks.contains_key(&(transfer.start_progress + 2)) + { + return Err(OversizedTransferError::Sequence(format!( + "First chunk skips beyond the reserved accept slot (token: {token})" + ))); + } + + if let Some(existing) = transfer.chunks.get(&progress) { + if existing != &data { + return Err(OversizedTransferError::Sequence(format!( + "Conflicting duplicate chunk detected (token: {token}, progress: {progress})" + ))); + } + // Idempotent identical duplicate: keep state, await more frames. + self.transfers.insert(token.to_string(), transfer); + return Ok(None); + } + + transfer.chunks.insert(progress, data); + transfer.highest_observed_progress = transfer.highest_observed_progress.max(progress); + transfer.refresh_chunk_progress_state(); + + if forward_gap > 0 && transfer.buffered_out_of_order_count() > max_ooo_chunks { + return Err(OversizedTransferError::Policy(format!( + "Buffered out-of-order chunks exceed policy limit {max_ooo_chunks} (token: {token})" + ))); + } + + self.transfers.insert(token.to_string(), transfer); + Ok(None) + } + + fn handle_end( + &mut self, + token: &str, + progress: u64, + ) -> Result, OversizedTransferError> { + let max_bytes = self.max_transfer_bytes; + // Removed up front: every end-path outcome (success or failure) is terminal. + let transfer = match self.transfers.remove(token) { + Some(transfer) => transfer, + // Late or duplicated end frames are ignored after cleanup. + None => return Ok(None), + }; + + if progress <= transfer.highest_observed_progress { + return Err(OversizedTransferError::Sequence(format!( + "End frame progress must be greater than all prior transfer frames (token: {token})" + ))); + } + if transfer.total_chunks > 0 && transfer.chunks.is_empty() { + return Err(OversizedTransferError::Reassembly(format!( + "Transfer ended before any chunks were received (token: {token})" + ))); + } + if transfer.chunks.len() as u64 != transfer.total_chunks { + return Err(OversizedTransferError::Reassembly(format!( + "Expected {} chunks but received {} (token: {token})", + transfer.total_chunks, + transfer.chunks.len() + ))); + } + + let assembled = match transfer.assemble() { + Some(assembled) => assembled, + None => { + return Err(OversizedTransferError::Reassembly(format!( + "Transfer ended with unresolved chunk gaps (token: {token})" + ))) + } + }; + + // 1. Byte-length validation. + if assembled.len() as u64 != transfer.total_bytes { + return Err(OversizedTransferError::Digest(format!( + "Byte length mismatch: expected {}, got {} (token: {token})", + transfer.total_bytes, + assembled.len() + ))); + } + + // 2. SHA-256 digest validation. + if sha256_digest(&assembled) != transfer.digest { + return Err(OversizedTransferError::Digest(format!( + "SHA-256 digest mismatch (token: {token})" + ))); + } + + // 3. Parse + validate as a JSON-RPC message, bypassing the 1 MB + // per-event cap in favor of the receiver policy's maxTransferBytes. + match validate_and_parse_oversized(&assembled, max_bytes as usize) { + Some(message) => Ok(Some(message)), + None => Err(OversizedTransferError::Reassembly(format!( + "Reassembled payload is not a valid JSON-RPC message (token: {token})" + ))), + } + } + + fn handle_abort( + &mut self, + token: &str, + reason: Option, + ) -> Result, OversizedTransferError> { + // Abort is terminal whether or not a transfer is currently tracked. + self.transfers.remove(token); + Err(OversizedTransferError::abort(token, reason)) + } +} + +/// Coerce a `progressToken` value to a string (mirrors TS `String(token ?? '')`). +fn token_to_string(value: Option<&Value>) -> String { + match value { + Some(Value::String(s)) => s.clone(), + Some(Value::Number(n)) => n.to_string(), + _ => String::new(), + } +} + +/// A non-empty token is required on every frame. +fn assert_valid_token(token: &str) -> Result<(), OversizedTransferError> { + if token.is_empty() { + return Err(OversizedTransferError::Sequence( + "Oversized transfer frame is missing progressToken".to_string(), + )); + } + Ok(()) +} + +/// Parse and validate the outer `progress`: a positive integer. +fn parse_progress(value: Option<&Value>, token: &str) -> Result { + let progress = match value { + Some(Value::Number(n)) => n.as_u64().or_else(|| { + n.as_f64().and_then(|f| { + if f.fract() == 0.0 && f > 0.0 { + Some(f as u64) + } else { + None + } + }) + }), + _ => None, + }; + + match progress { + Some(progress) if progress > 0 => Ok(progress), + _ => Err(OversizedTransferError::Sequence(format!( + "Invalid progress value (token: {token})" + ))), + } +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::core::types::{JsonRpcRequest, JsonRpcResponse}; + use crate::transport::oversized_transfer::codec::{ + build_oversized_frames, BuiltOversizedFrames, OversizedSenderOptions, + }; + use crate::transport::oversized_transfer::frame::{CompletionMode, OversizedFrame}; + use crate::transport::oversized_transfer::START_PROGRESS; + use serde_json::json; + + const TOKEN: &str = "tok"; + + fn sample_response(id: i64, value: &str) -> JsonRpcMessage { + JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: json!(id), + result: json!({ "value": value }), + }) + } + + fn build(message: &JsonRpcMessage, chunk_size: usize) -> BuiltOversizedFrames { + let serialized = serde_json::to_string(message).unwrap(); + let opts = OversizedSenderOptions::new(TOKEN).with_chunk_size(chunk_size); + build_oversized_frames(&serialized, &opts).unwrap() + } + + fn start_frame( + token: &str, + progress: u64, + digest: &str, + total_bytes: u64, + total_chunks: u64, + ) -> JsonRpcNotification { + OversizedFrame::Start { + completion_mode: CompletionMode::Render, + digest: digest.to_string(), + total_bytes, + total_chunks, + } + .into_progress_notification(token, progress, None) + .unwrap() + } + + fn chunk_frame(token: &str, progress: u64, data: &str) -> JsonRpcNotification { + OversizedFrame::Chunk { + data: data.to_string(), + } + .into_progress_notification(token, progress, None) + .unwrap() + } + + fn end_frame(token: &str, progress: u64) -> JsonRpcNotification { + OversizedFrame::End + .into_progress_notification(token, progress, None) + .unwrap() + } + + /// Drive a full ordered frame set through the receiver, returning the message. + fn run_to_completion( + receiver: &mut OversizedTransferReceiver, + frames: BuiltOversizedFrames, + ) -> JsonRpcMessage { + let mut out = None; + for frame in frames.into_ordered() { + if let Some(message) = receiver.process_frame(&frame).unwrap() { + out = Some(message); + } + } + out.expect("transfer should complete on the end frame") + } + + // ── roundtrip ─────────────────────────────────────────────────── + + #[test] + fn roundtrip_in_order() { + let message = sample_response(1, &"x".repeat(60)); + let frames = build(&message, 8); + assert!(frames.chunks.len() > 1); + + let mut receiver = OversizedTransferReceiver::new(); + let reconstructed = run_to_completion(&mut receiver, frames); + + assert_eq!( + serde_json::to_value(&reconstructed).unwrap(), + serde_json::to_value(&message).unwrap() + ); + assert_eq!(receiver.active_transfer_count(), 0); + } + + #[test] + fn roundtrip_request_message() { + // Reassembly validates any JSON-RPC variant, not just responses. + let message = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: json!("abc"), + method: "tools/call".to_string(), + params: Some(json!({ "blob": "y".repeat(40) })), + }); + let frames = build(&message, 10); + + let mut receiver = OversizedTransferReceiver::new(); + let reconstructed = run_to_completion(&mut receiver, frames); + assert_eq!( + serde_json::to_value(&reconstructed).unwrap(), + serde_json::to_value(&message).unwrap() + ); + } + + #[test] + fn roundtrip_multibyte_payload() { + // Small chunks force boundaries inside multibyte runs (CEP-22 D4). + let message = sample_response(7, "héllo 🦀 wörld 日本語 ☃ même 🚀🚀"); + let frames = build(&message, 5); + + let mut receiver = OversizedTransferReceiver::new(); + let reconstructed = run_to_completion(&mut receiver, frames); + assert_eq!( + serde_json::to_value(&reconstructed).unwrap(), + serde_json::to_value(&message).unwrap() + ); + } + + #[test] + fn roundtrip_out_of_order_within_window() { + let message = sample_response(2, &"z".repeat(60)); + let frames = build(&message, 8); + assert!(frames.chunks.len() >= 3); + + let mut receiver = OversizedTransferReceiver::with_policy(TransferPolicy { + max_out_of_order_window: 4, + max_out_of_order_chunks: 4, + ..Default::default() + }); + + receiver.process_frame(&frames.start).unwrap(); + // Deliver the first two chunks swapped. + receiver.process_frame(&frames.chunks[1]).unwrap(); + receiver.process_frame(&frames.chunks[0]).unwrap(); + for chunk in &frames.chunks[2..] { + receiver.process_frame(chunk).unwrap(); + } + let reconstructed = receiver.process_frame(&frames.end).unwrap().unwrap(); + + assert_eq!( + serde_json::to_value(&reconstructed).unwrap(), + serde_json::to_value(&message).unwrap() + ); + assert_eq!(receiver.active_transfer_count(), 0); + } + + #[test] + fn roundtrip_accept_gated_handshake() { + let message = sample_response(6, &"q".repeat(40)); + let serialized = serde_json::to_string(&message).unwrap(); + let opts = OversizedSenderOptions::new(TOKEN) + .with_chunk_size(8) + .with_accept_handshake(true); + let frames = build_oversized_frames(&serialized, &opts).unwrap(); + + let mut receiver = OversizedTransferReceiver::new(); + receiver.process_frame(&frames.start).unwrap(); + // Sender waits for the receiver's accept on the reserved slot 2. + let accept = OversizedFrame::Accept + .into_progress_notification(TOKEN, 2, None) + .unwrap(); + receiver.process_frame(&accept).unwrap(); + for chunk in &frames.chunks { + receiver.process_frame(chunk).unwrap(); + } + let reconstructed = receiver.process_frame(&frames.end).unwrap().unwrap(); + + assert_eq!( + serde_json::to_value(&reconstructed).unwrap(), + serde_json::to_value(&message).unwrap() + ); + } + + // ── out-of-order policy ───────────────────────────────────────── + + #[test] + fn out_of_order_gap_over_window_is_policy_error() { + let message = sample_response(2, "abcdefghijklmnop"); + let frames = build(&message, 4); + assert!(frames.chunks.len() >= 3); + + let mut receiver = OversizedTransferReceiver::with_policy(TransferPolicy { + max_out_of_order_window: 1, + ..Default::default() + }); + receiver.process_frame(&frames.start).unwrap(); + + // Jump straight to the third chunk: forward gap 2 > window 1. + let err = receiver.process_frame(&frames.chunks[2]).unwrap_err(); + assert!(matches!(err, OversizedTransferError::Policy(_))); + assert_eq!(receiver.active_transfer_count(), 0); + } + + #[test] + fn chunk_with_u64_max_progress_does_not_panic() { + // Regression: the forward-gap subtraction must not overflow when a + // hostile peer sends progress = u64::MAX (previously panicked under i64). + let mut receiver = OversizedTransferReceiver::new(); + receiver + .process_frame(&start_frame(TOKEN, 1, "sha256:abcd", 4, 1)) + .unwrap(); + + let err = receiver + .process_frame(&chunk_frame(TOKEN, u64::MAX, "x")) + .unwrap_err(); + // Rejected cleanly (huge forward gap → Policy) rather than panicking. + assert!(matches!( + err, + OversizedTransferError::Policy(_) | OversizedTransferError::Sequence(_) + )); + assert_eq!(receiver.active_transfer_count(), 0); + } + + #[test] + fn first_chunk_skipping_reserved_accept_slot_is_sequence_error() { + // 5 declared chunks keep slot 4 within the declared bounds (slots 2..=6), + // so this exercises the reserved-slot guard, not the bounds check. + let mut receiver = OversizedTransferReceiver::new(); + receiver + .process_frame(&start_frame(TOKEN, 1, "sha256:abcd", 20, 5)) + .unwrap(); + + // First chunk jumps to slot 4, skipping the reserved accept slot (2) and + // the first chunk slot (3) while both are still empty. + let err = receiver + .process_frame(&chunk_frame(TOKEN, 4, "data")) + .unwrap_err(); + assert!(matches!(err, OversizedTransferError::Sequence(_))); + assert!(err.to_string().contains("reserved accept slot")); + assert_eq!(receiver.active_transfer_count(), 0); + } + + #[test] + fn accept_not_advancing_past_start_is_sequence_error() { + let mut receiver = OversizedTransferReceiver::new(); + receiver + .process_frame(&start_frame(TOKEN, START_PROGRESS, "sha256:abcd", 4, 1)) + .unwrap(); + + // The accept frame MUST advance past the start slot; progress equal to + // START_PROGRESS does not. + let accept = OversizedFrame::Accept + .into_progress_notification(TOKEN, START_PROGRESS, None) + .unwrap(); + let err = receiver.process_frame(&accept).unwrap_err(); + assert!(matches!(err, OversizedTransferError::Sequence(_))); + assert_eq!(receiver.active_transfer_count(), 0); + } + + // ── integrity ─────────────────────────────────────────────────── + + #[test] + fn digest_mismatch_is_digest_error() { + let message = sample_response(1, "hello"); + let serialized = serde_json::to_string(&message).unwrap(); + let total_bytes = serialized.len() as u64; + + let mut receiver = OversizedTransferReceiver::new(); + // Correct byte length, but a wrong (well-formed) digest. + receiver + .process_frame(&start_frame(TOKEN, 1, "sha256:deadbeef", total_bytes, 1)) + .unwrap(); + receiver + .process_frame(&chunk_frame(TOKEN, 2, &serialized)) + .unwrap(); + let err = receiver.process_frame(&end_frame(TOKEN, 3)).unwrap_err(); + + assert!(matches!(err, OversizedTransferError::Digest(_))); + assert!(err.to_string().to_lowercase().contains("digest")); + assert_eq!(receiver.active_transfer_count(), 0); + } + + #[test] + fn byte_length_mismatch_is_digest_error() { + let message = sample_response(1, "hello"); + let serialized = serde_json::to_string(&message).unwrap(); + let digest = sha256_digest(&serialized); + let wrong_total = serialized.len() as u64 + 1; + + let mut receiver = OversizedTransferReceiver::new(); + receiver + .process_frame(&start_frame(TOKEN, 1, &digest, wrong_total, 1)) + .unwrap(); + receiver + .process_frame(&chunk_frame(TOKEN, 2, &serialized)) + .unwrap(); + let err = receiver.process_frame(&end_frame(TOKEN, 3)).unwrap_err(); + + assert!(matches!(err, OversizedTransferError::Digest(_))); + assert!(err.to_string().to_lowercase().contains("byte length")); + } + + // ── sequencing ────────────────────────────────────────────────── + + #[test] + fn duplicate_start_is_sequence_error() { + let start = start_frame(TOKEN, 1, "sha256:abcd", 4, 1); + let mut receiver = OversizedTransferReceiver::new(); + receiver.process_frame(&start).unwrap(); + + let err = receiver.process_frame(&start).unwrap_err(); + assert!(matches!(err, OversizedTransferError::Sequence(_))); + assert!(err.to_string().contains("Duplicate start")); + // The pre-existing transfer is left intact (duplicate is rejected, not reset). + assert_eq!(receiver.active_transfer_count(), 1); + } + + #[test] + fn chunk_count_mismatch_is_reassembly_error() { + let mut receiver = OversizedTransferReceiver::new(); + // Declares two chunks but only one arrives before end. + receiver + .process_frame(&start_frame(TOKEN, 1, "sha256:abcd", 8, 2)) + .unwrap(); + receiver + .process_frame(&chunk_frame(TOKEN, 2, "abcd")) + .unwrap(); + let err = receiver.process_frame(&end_frame(TOKEN, 3)).unwrap_err(); + + assert!(matches!(err, OversizedTransferError::Reassembly(_))); + assert!(err.to_string().contains("Expected 2 chunks but received 1")); + assert_eq!(receiver.active_transfer_count(), 0); + } + + #[test] + fn conflicting_duplicate_chunk_is_sequence_error() { + let mut receiver = OversizedTransferReceiver::new(); + receiver + .process_frame(&start_frame(TOKEN, 1, "sha256:abcd", 8, 2)) + .unwrap(); + receiver + .process_frame(&chunk_frame(TOKEN, 2, "abcd")) + .unwrap(); + let err = receiver + .process_frame(&chunk_frame(TOKEN, 2, "wxyz")) + .unwrap_err(); + + assert!(matches!(err, OversizedTransferError::Sequence(_))); + assert_eq!(receiver.active_transfer_count(), 0); + } + + #[test] + fn identical_duplicate_chunk_is_idempotent() { + let mut receiver = OversizedTransferReceiver::new(); + receiver + .process_frame(&start_frame(TOKEN, 1, "sha256:abcd", 8, 2)) + .unwrap(); + receiver + .process_frame(&chunk_frame(TOKEN, 2, "abcd")) + .unwrap(); + // Re-delivering the identical chunk is a no-op, not an error. + assert!(receiver + .process_frame(&chunk_frame(TOKEN, 2, "abcd")) + .unwrap() + .is_none()); + assert_eq!(receiver.active_transfer_count(), 1); + } + + #[test] + fn end_not_advancing_progress_is_sequence_error() { + let mut receiver = OversizedTransferReceiver::new(); + receiver + .process_frame(&start_frame(TOKEN, 1, "sha256:abcd", 4, 1)) + .unwrap(); + receiver + .process_frame(&chunk_frame(TOKEN, 2, "test")) + .unwrap(); + // End at the same progress as the last chunk must not advance. + let err = receiver.process_frame(&end_frame(TOKEN, 2)).unwrap_err(); + assert!(matches!(err, OversizedTransferError::Sequence(_))); + } + + #[test] + fn missing_token_is_sequence_error() { + let frame = chunk_frame("", 2, "abcd"); + let mut receiver = OversizedTransferReceiver::new(); + let err = receiver.process_frame(&frame).unwrap_err(); + assert!(matches!(err, OversizedTransferError::Sequence(_))); + assert!(err.to_string().contains("missing progressToken")); + } + + #[test] + fn non_positive_progress_is_sequence_error() { + let frame = start_frame(TOKEN, 0, "sha256:abcd", 4, 1); + let mut receiver = OversizedTransferReceiver::new(); + let err = receiver.process_frame(&frame).unwrap_err(); + assert!(matches!(err, OversizedTransferError::Sequence(_))); + } + + // ── abort ─────────────────────────────────────────────────────── + + #[test] + fn abort_terminates_active_transfer() { + let mut receiver = OversizedTransferReceiver::new(); + receiver + .process_frame(&start_frame(TOKEN, 1, "sha256:abcd", 4, 1)) + .unwrap(); + + let abort = OversizedFrame::Abort { + reason: Some("peer cancelled".to_string()), + } + .into_progress_notification(TOKEN, 5, None) + .unwrap(); + let err = receiver.process_frame(&abort).unwrap_err(); + + assert!(err.is_abort()); + match err { + OversizedTransferError::Abort { token, reason } => { + assert_eq!(token, TOKEN); + assert_eq!(reason.as_deref(), Some("peer cancelled")); + } + other => panic!("expected abort, got {other:?}"), + } + assert_eq!(receiver.active_transfer_count(), 0); + } + + #[test] + fn orphan_abort_still_errors() { + let mut receiver = OversizedTransferReceiver::new(); + let abort = OversizedFrame::Abort { reason: None } + .into_progress_notification(TOKEN, 2, None) + .unwrap(); + assert!(receiver.process_frame(&abort).unwrap_err().is_abort()); + } + + // ── admission limits ──────────────────────────────────────────── + + #[test] + fn start_over_byte_limit_is_policy_error() { + let mut receiver = OversizedTransferReceiver::with_policy(TransferPolicy { + max_transfer_bytes: 10, + ..Default::default() + }); + let err = receiver + .process_frame(&start_frame(TOKEN, 1, "sha256:abcd", 11, 1)) + .unwrap_err(); + assert!(matches!(err, OversizedTransferError::Policy(_))); + assert_eq!(receiver.active_transfer_count(), 0); + } + + #[test] + fn start_over_chunk_limit_is_policy_error() { + let mut receiver = OversizedTransferReceiver::with_policy(TransferPolicy { + max_transfer_chunks: 1, + ..Default::default() + }); + let err = receiver + .process_frame(&start_frame(TOKEN, 1, "sha256:abcd", 4, 2)) + .unwrap_err(); + assert!(matches!(err, OversizedTransferError::Policy(_))); + } + + #[test] + fn start_over_concurrency_limit_is_policy_error() { + let mut receiver = OversizedTransferReceiver::with_policy(TransferPolicy { + max_concurrent_transfers: 1, + ..Default::default() + }); + receiver + .process_frame(&start_frame("tok-a", 1, "sha256:abcd", 4, 1)) + .unwrap(); + let err = receiver + .process_frame(&start_frame("tok-b", 1, "sha256:efgh", 4, 1)) + .unwrap_err(); + assert!(matches!(err, OversizedTransferError::Policy(_))); + } + + #[test] + fn start_with_malformed_digest_is_reassembly_error() { + let mut receiver = OversizedTransferReceiver::new(); + // Missing the "sha256:" prefix. + let err = receiver + .process_frame(&start_frame(TOKEN, 1, "abcd", 4, 1)) + .unwrap_err(); + assert!(matches!(err, OversizedTransferError::Reassembly(_))); + } + + // ── orphan / non-frame handling ───────────────────────────────── + + #[test] + fn orphan_late_frames_are_ignored() { + let mut receiver = OversizedTransferReceiver::new(); + let accept = OversizedFrame::Accept + .into_progress_notification("orphan-accept", 2, None) + .unwrap(); + assert!(receiver.process_frame(&accept).unwrap().is_none()); + assert!(receiver + .process_frame(&chunk_frame("orphan-chunk", 2, "x")) + .unwrap() + .is_none()); + assert!(receiver + .process_frame(&end_frame("orphan-end", 2)) + .unwrap() + .is_none()); + assert_eq!(receiver.active_transfer_count(), 0); + } + + #[test] + fn non_frame_progress_notification_is_passthrough_none() { + let mut receiver = OversizedTransferReceiver::new(); + let plain = JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: Some(json!({ "progressToken": "t", "progress": 3 })), + }; + assert!(receiver.process_frame(&plain).unwrap().is_none()); + + let no_params = JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/initialized".to_string(), + params: None, + }; + assert!(receiver.process_frame(&no_params).unwrap().is_none()); + } + + #[test] + fn is_oversized_frame_detects_cvm_payload() { + let frame = end_frame(TOKEN, 3); + assert!(OversizedTransferReceiver::is_oversized_frame(&frame)); + + let plain = JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: Some(json!({ "progressToken": "t", "progress": 3 })), + }; + assert!(!OversizedTransferReceiver::is_oversized_frame(&plain)); + } + + #[test] + fn clear_releases_in_flight_state() { + let mut receiver = OversizedTransferReceiver::new(); + receiver + .process_frame(&start_frame(TOKEN, 1, "sha256:abcd", 4, 1)) + .unwrap(); + assert_eq!(receiver.active_transfer_count(), 1); + receiver.clear(); + assert_eq!(receiver.active_transfer_count(), 0); + } + + #[test] + fn reassembled_payload_exceeds_one_megabyte() { + // The whole point of CEP-22: reassemble a payload larger than the 1 MB + // per-event cap. Chunks stay small; the result is ~1.2 MB. + let message = sample_response(1, &"m".repeat(1_200_000)); + let serialized = serde_json::to_string(&message).unwrap(); + assert!(serialized.len() > crate::core::constants::MAX_MESSAGE_SIZE); + + let frames = build(&message, 48_000); + let mut receiver = OversizedTransferReceiver::new(); + let reconstructed = run_to_completion(&mut receiver, frames); + assert_eq!( + serde_json::to_value(&reconstructed).unwrap(), + serde_json::to_value(&message).unwrap() + ); + } +} From 49e08b4b683020dd4d9e9df03e73d18168b4efe2 Mon Sep 17 00:00:00 2001 From: Harsh Date: Sun, 7 Jun 2026 02:52:22 +0530 Subject: [PATCH 096/116] feat: CEP-22 - config, capability advertisement, and server gate --- src/gateway/mod.rs | 1 + src/proxy/mod.rs | 1 + src/transport/client/mod.rs | 62 ++++++ src/transport/oversized_transfer/constants.rs | 6 +- src/transport/oversized_transfer/mod.rs | 129 ++++++++++- src/transport/oversized_transfer/receiver.rs | 4 +- src/transport/server/announcement_manager.rs | 7 +- src/transport/server/correlation_store.rs | 2 +- src/transport/server/mod.rs | 206 +++++++++++++++--- 9 files changed, 381 insertions(+), 37 deletions(-) diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index b452d9c..789545a 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -143,6 +143,7 @@ mod tests { bootstrap_relay_urls: None, publish_relay_list: true, profile_metadata: None, + oversized_transfer: Default::default(), }; let config = GatewayConfig { nostr_config }; diff --git a/src/proxy/mod.rs b/src/proxy/mod.rs index 532fdc8..7af69a1 100644 --- a/src/proxy/mod.rs +++ b/src/proxy/mod.rs @@ -124,6 +124,7 @@ mod tests { timeout: Duration::from_secs(60), discovery_relay_urls: None, fallback_operational_relay_urls: None, + oversized_transfer: Default::default(), }; let config = ProxyConfig { nostr_config }; diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index f6def7d..d114455 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -28,6 +28,7 @@ use crate::encryption; use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; use crate::transport::discovery_tags::{parse_discovered_peer_capabilities, PeerCapabilities}; +use crate::transport::oversized_transfer::OversizedTransferConfig; const LOG_TARGET: &str = "contextvm_sdk::transport::client"; @@ -59,6 +60,8 @@ pub struct NostrClientTransportConfig { pub discovery_relay_urls: Option>, /// Non-authoritative operational relays probed in parallel with CEP-17 discovery. pub fallback_operational_relay_urls: Option>, + /// CEP-22 oversized payload transfer configuration. Disabled by default. + pub oversized_transfer: OversizedTransferConfig, } impl Default for NostrClientTransportConfig { @@ -72,6 +75,7 @@ impl Default for NostrClientTransportConfig { timeout: Duration::from_secs(30), discovery_relay_urls: None, fallback_operational_relay_urls: None, + oversized_transfer: OversizedTransferConfig::default(), } } } @@ -117,6 +121,16 @@ impl NostrClientTransportConfig { self.fallback_operational_relay_urls = Some(urls); self } + /// Set the full CEP-22 oversized payload transfer configuration. + pub fn with_oversized_transfer(mut self, config: OversizedTransferConfig) -> Self { + self.oversized_transfer = config; + self + } + /// Enable or disable CEP-22 oversized payload transfer, leaving other knobs at default. + pub fn with_oversized_enabled(mut self, enabled: bool) -> Self { + self.oversized_transfer.enabled = enabled; + self + } } /// Client-side Nostr transport for sending MCP requests and receiving responses. @@ -599,6 +613,13 @@ impl NostrClientTransport { )); } } + // CEP-22: advertise oversized-transfer support when enabled. + if self.config.oversized_transfer.enabled { + tags.push(Tag::custom( + TagKind::Custom(tags::SUPPORT_OVERSIZED_TRANSFER.into()), + Vec::::new(), + )); + } tags } @@ -1220,6 +1241,47 @@ mod tests { assert_eq!(names, vec!["support_encryption"]); } + #[test] + fn client_capability_tags_oversized_disabled_by_default() { + let t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Optional); + assert!(!t.config.oversized_transfer.enabled); + let names = tag_names(&t.get_client_capability_tags()); + assert!( + !names.contains(&"support_oversized_transfer".to_string()), + "oversized tag must not be advertised when disabled" + ); + } + + #[test] + fn client_capability_tags_oversized_enabled() { + let mut t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Optional); + t.config.oversized_transfer.enabled = true; + let names = tag_names(&t.get_client_capability_tags()); + assert!( + names.contains(&"support_oversized_transfer".to_string()), + "oversized tag must be advertised when enabled" + ); + } + + #[test] + fn client_capability_tags_oversized_enabled_without_encryption() { + // Tag is emitted independently of the encryption capability tags. + let mut t = make_transport_for_tags(EncryptionMode::Disabled, GiftWrapMode::Optional); + t.config.oversized_transfer.enabled = true; + let names = tag_names(&t.get_client_capability_tags()); + assert_eq!(names, vec!["support_oversized_transfer"]); + } + + #[test] + fn client_config_oversized_builders() { + let cfg = NostrClientTransportConfig::default().with_oversized_enabled(true); + assert!(cfg.oversized_transfer.enabled); + let cfg = NostrClientTransportConfig::default() + .with_oversized_transfer(OversizedTransferConfig::enabled().with_chunk_size(1024)); + assert!(cfg.oversized_transfer.enabled); + assert_eq!(cfg.oversized_transfer.chunk_size, 1024); + } + #[test] fn client_discovery_tags_sent_once() { let t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Optional); diff --git a/src/transport/oversized_transfer/constants.rs b/src/transport/oversized_transfer/constants.rs index ab308dc..e541d01 100644 --- a/src/transport/oversized_transfer/constants.rs +++ b/src/transport/oversized_transfer/constants.rs @@ -33,8 +33,8 @@ pub const DEFAULT_MAX_CONCURRENT_TRANSFERS: usize = 64; /// Default hard timeout for an in-flight transfer (milliseconds). /// -/// Not enforced by the PR-1 pure engine (no timers yet); wired into the -/// transport watchdog in a later PR. +/// Not enforced by the pure engine (no timers yet); wired into the +/// transport watchdog once transport integration lands. pub const DEFAULT_TRANSFER_TIMEOUT_MS: u64 = 5 * 60 * 1000; /// Default maximum forward gap between the next expected chunk and an @@ -46,7 +46,7 @@ pub const DEFAULT_MAX_OUT_OF_ORDER_CHUNKS: usize = 42; /// Default timeout a sender waits for an `accept` frame before giving up (milliseconds). /// -/// Used by the sender handshake in a later PR; defined here for parity. +/// Used by the sender handshake once transport integration lands; defined here for parity. pub const DEFAULT_ACCEPT_TIMEOUT_MS: u64 = 30_000; /// Canonical progress slot for the `start` frame. diff --git a/src/transport/oversized_transfer/mod.rs b/src/transport/oversized_transfer/mod.rs index 66759ac..88a665b 100644 --- a/src/transport/oversized_transfer/mod.rs +++ b/src/transport/oversized_transfer/mod.rs @@ -9,8 +9,9 @@ //! //! This module is the **pure engine**: building frames ([`codec`]) and //! reassembling them ([`receiver`]). It carries no transport, I/O, or timers — -//! those are wired in by the client and server transports in later PRs. Until -//! then the module is intentionally unused by the rest of the crate. +//! those are wired in by the client and server transports once transport +//! integration lands. Until then the module is intentionally unused by the +//! rest of the crate. //! //! ``` //! use contextvm_sdk::transport::oversized_transfer::{ @@ -55,3 +56,127 @@ pub use constants::*; pub use errors::OversizedTransferError; pub use frame::{CompletionMode, OversizedFrame}; pub use receiver::{OversizedTransferReceiver, TransferPolicy}; + +/// CEP-22 oversized-transfer configuration shared by both transports. +/// +/// Bundles the capability gate plus the sender/receiver tuning knobs (D6) so the +/// nine numeric defaults don't clutter the flat transport configs. Attached to +/// [`NostrServerTransportConfig`](crate::transport::NostrServerTransportConfig) +/// and [`NostrClientTransportConfig`](crate::transport::NostrClientTransportConfig) +/// via their `with_oversized_transfer` / `with_oversized_enabled` builders. +/// +/// **Disabled by default** — until a peer opts in, no `support_oversized_transfer` +/// capability is advertised and the server never learns or activates the feature. +#[derive(Debug, Clone)] +#[non_exhaustive] +pub struct OversizedTransferConfig { + /// Master gate. When `false` (default) the capability is neither advertised + /// nor activated, and the server does not learn a client's flag. + pub enabled: bool, + /// Serialized byte length at or above which the sender switches to oversized transfer. + pub threshold: usize, + /// Per-chunk data size (bytes). + pub chunk_size: usize, + /// Upper bound on the total reassembled payload a receiver will accept (bytes). + pub max_transfer_bytes: u64, + /// Upper bound on the number of chunks a receiver will accept. + pub max_transfer_chunks: u64, + /// Upper bound on concurrently active receiver-side transfers. + pub max_concurrent_transfers: usize, + /// Hard timeout for an in-flight transfer (milliseconds). + pub transfer_timeout_ms: u64, + /// Maximum forward gap between the next expected chunk and an out-of-order + /// chunk that will still be buffered. + pub max_out_of_order_window: u64, + /// Maximum number of buffered out-of-order chunks. + pub max_out_of_order_chunks: usize, + /// Timeout a sender waits for an `accept` frame before giving up (milliseconds). + pub accept_timeout_ms: u64, +} + +impl Default for OversizedTransferConfig { + fn default() -> Self { + Self { + enabled: false, + threshold: DEFAULT_OVERSIZED_THRESHOLD, + chunk_size: DEFAULT_CHUNK_SIZE, + max_transfer_bytes: DEFAULT_MAX_TRANSFER_BYTES, + max_transfer_chunks: DEFAULT_MAX_TRANSFER_CHUNKS, + max_concurrent_transfers: DEFAULT_MAX_CONCURRENT_TRANSFERS, + transfer_timeout_ms: DEFAULT_TRANSFER_TIMEOUT_MS, + max_out_of_order_window: DEFAULT_MAX_OUT_OF_ORDER_WINDOW, + max_out_of_order_chunks: DEFAULT_MAX_OUT_OF_ORDER_CHUNKS, + accept_timeout_ms: DEFAULT_ACCEPT_TIMEOUT_MS, + } + } +} + +impl OversizedTransferConfig { + /// An explicitly enabled config with all other knobs at their defaults. + pub fn enabled() -> Self { + Self { + enabled: true, + ..Self::default() + } + } + + /// Enable or disable oversized transfer. + pub fn with_enabled(mut self, enabled: bool) -> Self { + self.enabled = enabled; + self + } + + /// Set the serialized-byte threshold at which the sender fragments. + pub fn with_threshold(mut self, threshold: usize) -> Self { + self.threshold = threshold; + self + } + + /// Set the per-chunk data size (bytes). + pub fn with_chunk_size(mut self, chunk_size: usize) -> Self { + self.chunk_size = chunk_size; + self + } + + /// Set the upper bound on the total reassembled payload (bytes). + pub fn with_max_transfer_bytes(mut self, max: u64) -> Self { + self.max_transfer_bytes = max; + self + } + + /// Set the upper bound on the number of chunks a receiver will accept. + pub fn with_max_transfer_chunks(mut self, max: u64) -> Self { + self.max_transfer_chunks = max; + self + } + + /// Set the upper bound on concurrently active receiver-side transfers. + pub fn with_max_concurrent_transfers(mut self, max: usize) -> Self { + self.max_concurrent_transfers = max; + self + } + + /// Set the hard per-transfer timeout (milliseconds). + pub fn with_transfer_timeout_ms(mut self, ms: u64) -> Self { + self.transfer_timeout_ms = ms; + self + } + + /// Set the maximum forward gap for buffering out-of-order chunks. + pub fn with_max_out_of_order_window(mut self, window: u64) -> Self { + self.max_out_of_order_window = window; + self + } + + /// Set the maximum number of buffered out-of-order chunks. + pub fn with_max_out_of_order_chunks(mut self, max: usize) -> Self { + self.max_out_of_order_chunks = max; + self + } + + /// Set the sender's `accept`-frame wait timeout (milliseconds). + pub fn with_accept_timeout_ms(mut self, ms: u64) -> Self { + self.accept_timeout_ms = ms; + self + } +} diff --git a/src/transport/oversized_transfer/receiver.rs b/src/transport/oversized_transfer/receiver.rs index 4b4f4e7..bc4b44f 100644 --- a/src/transport/oversized_transfer/receiver.rs +++ b/src/transport/oversized_transfer/receiver.rs @@ -5,7 +5,7 @@ //! and returns the reassembled [`JsonRpcMessage`] once a transfer completes and //! passes byte-length, SHA-256, and JSON-RPC validation. //! -//! This PR-1 engine is **pure and synchronous**: it owns no timers. The hard +//! This engine is **pure and synchronous**: it owns no timers. The hard //! per-transfer watchdog (`transfer_timeout_ms`) and the sender-side //! accept-waiter are added when the engine is wired into the transport. @@ -42,7 +42,7 @@ pub struct TransferPolicy { /// Maximum number of buffered out-of-order chunks. pub max_out_of_order_chunks: usize, /// Hard per-transfer timeout (milliseconds). Reserved for the transport - /// watchdog in a later PR; the pure engine does not enforce it. + /// watchdog; the pure engine does not enforce it. pub transfer_timeout_ms: u64, } diff --git a/src/transport/server/announcement_manager.rs b/src/transport/server/announcement_manager.rs index 40f075a..fa36459 100644 --- a/src/transport/server/announcement_manager.rs +++ b/src/transport/server/announcement_manager.rs @@ -39,7 +39,7 @@ pub(crate) struct AnnouncementManager { gift_wrap_mode: GiftWrapMode, /// User-provided extra tags (e.g. PMI discovery for CEP-8). extra_common_tags: Vec, - /// Transport-owned internal tags (future CEP-22 oversized support signal). + /// Transport-owned internal tags (e.g. CEP-22 oversized support signal). internal_common_tags: Vec, /// CEP-8 pricing tags for capability list responses. pricing_tags: Vec, @@ -277,7 +277,6 @@ impl AnnouncementManager { /// Set transport-owned internal common tags (e.g. CEP-22 oversized support). /// /// Invalidates the common tags cache. - #[allow(dead_code)] // API reserved for CEP-22 oversized transfer integration pub fn set_internal_common_tags(&mut self, tags: Vec) { self.internal_common_tags = tags; *self @@ -645,6 +644,7 @@ impl AnnouncementManager { CommonTagsSnapshot { server_info: self.server_info.clone(), extra_common_tags: self.extra_common_tags.clone(), + internal_common_tags: self.internal_common_tags.clone(), encryption_mode: self.encryption_mode, gift_wrap_mode: self.gift_wrap_mode, } @@ -882,6 +882,8 @@ pub(crate) struct CommonTagsSnapshot { pub server_info: Option, /// User-provided extra common tags. pub extra_common_tags: Vec, + /// Transport-owned internal common tags (e.g. CEP-22 oversized support). + pub internal_common_tags: Vec, /// Encryption mode for capability tag decisions. pub encryption_mode: EncryptionMode, /// Gift-wrap mode for ephemeral tag decisions. @@ -915,6 +917,7 @@ impl CommonTagsSnapshot { } } tags.extend(self.extra_common_tags.iter().cloned()); + tags.extend(self.internal_common_tags.iter().cloned()); } } diff --git a/src/transport/server/correlation_store.rs b/src/transport/server/correlation_store.rs index 3a68ddb..8fca3d5 100644 --- a/src/transport/server/correlation_store.rs +++ b/src/transport/server/correlation_store.rs @@ -20,7 +20,7 @@ pub struct RouteEntry { /// Optional progress token for this request. pub progress_token: Option, /// The outer gift-wrap event kind that carried this request (e.g. 1059 or 21059). - /// Populated from the inbound event in a later PR; `None` until then. + /// Populated from the inbound event once wrap-kind mirroring is wired; `None` until then. pub wrap_kind: Option, /// When the route was registered. pub registered_at: Instant, diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 008a5a0..a0d9457 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -29,9 +29,23 @@ use crate::encryption; use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; use crate::transport::discovery_tags::learn_peer_capabilities; +use crate::transport::oversized_transfer::OversizedTransferConfig; const LOG_TARGET: &str = "contextvm_sdk::transport::server"; +/// CEP-22: the `support_oversized_transfer` capability tags to advertise, or +/// empty when oversized transfer is disabled. +fn oversized_support_tags(config: &NostrServerTransportConfig) -> Vec { + if config.oversized_transfer.enabled { + vec![Tag::custom( + TagKind::Custom(tags::SUPPORT_OVERSIZED_TRANSFER.into()), + Vec::::new(), + )] + } else { + Vec::new() + } +} + /// Configuration for the server transport. #[derive(Debug, Clone)] #[non_exhaustive] @@ -75,6 +89,8 @@ pub struct NostrServerTransportConfig { pub publish_relay_list: bool, /// Optional NIP-01 profile metadata (kind 0) to publish at startup. pub profile_metadata: Option, + /// CEP-22 oversized payload transfer configuration. Disabled by default. + pub oversized_transfer: OversizedTransferConfig, } impl Default for NostrServerTransportConfig { @@ -95,6 +111,7 @@ impl Default for NostrServerTransportConfig { bootstrap_relay_urls: None, publish_relay_list: true, profile_metadata: None, + oversized_transfer: OversizedTransferConfig::default(), } } } @@ -202,6 +219,16 @@ impl NostrServerTransportConfig { self.profile_metadata = Some(metadata); self } + /// Set the full CEP-22 oversized payload transfer configuration. + pub fn with_oversized_transfer(mut self, config: OversizedTransferConfig) -> Self { + self.oversized_transfer = config; + self + } + /// Enable or disable CEP-22 oversized payload transfer, leaving other knobs at default. + pub fn with_oversized_enabled(mut self, enabled: bool) -> Self { + self.oversized_transfer.enabled = enabled; + self + } } /// An incoming MCP request with metadata for routing the response. @@ -246,19 +273,22 @@ impl NostrServerTransport { gift_wrap_mode = ?config.gift_wrap_mode, "Created server transport" ); + let mut announcement_manager = announcement_manager::AnnouncementManager::new( + Arc::clone(&relay_pool), + config.server_info.clone(), + config.encryption_mode, + config.gift_wrap_mode, + tx.clone(), + config.relay_urls.clone(), + config.relay_list_urls.clone(), + config.bootstrap_relay_urls.clone(), + config.publish_relay_list, + config.profile_metadata.clone(), + ); + // CEP-22: advertise oversized-transfer support in announcements + first responses. + announcement_manager.set_internal_common_tags(oversized_support_tags(&config)); Ok(Self { - announcement_manager: announcement_manager::AnnouncementManager::new( - Arc::clone(&relay_pool), - config.server_info.clone(), - config.encryption_mode, - config.gift_wrap_mode, - tx.clone(), - config.relay_urls.clone(), - config.relay_list_urls.clone(), - config.bootstrap_relay_urls.clone(), - config.publish_relay_list, - config.profile_metadata.clone(), - ), + announcement_manager, base: BaseTransport { relay_pool, encryption_mode: config.encryption_mode, @@ -293,19 +323,22 @@ impl NostrServerTransport { encryption_mode = ?config.encryption_mode, "Created server transport (with_relay_pool)" ); + let mut announcement_manager = announcement_manager::AnnouncementManager::new( + Arc::clone(&relay_pool), + config.server_info.clone(), + config.encryption_mode, + config.gift_wrap_mode, + tx.clone(), + config.relay_urls.clone(), + config.relay_list_urls.clone(), + config.bootstrap_relay_urls.clone(), + config.publish_relay_list, + config.profile_metadata.clone(), + ); + // CEP-22: advertise oversized-transfer support in announcements + first responses. + announcement_manager.set_internal_common_tags(oversized_support_tags(&config)); Ok(Self { - announcement_manager: announcement_manager::AnnouncementManager::new( - Arc::clone(&relay_pool), - config.server_info.clone(), - config.encryption_mode, - config.gift_wrap_mode, - tx.clone(), - config.relay_urls.clone(), - config.relay_list_urls.clone(), - config.bootstrap_relay_urls.clone(), - config.publish_relay_list, - config.profile_metadata.clone(), - ), + announcement_manager, base: BaseTransport { relay_pool, encryption_mode: config.encryption_mode, @@ -379,6 +412,7 @@ impl NostrServerTransport { let encryption_mode = self.config.encryption_mode; let gift_wrap_mode = self.config.gift_wrap_mode; let is_announced_server = self.config.is_announced_server; + let oversized_enabled = self.config.oversized_transfer.enabled; let common_tags_snapshot = self.announcement_manager.common_tags_snapshot(); let seen_gift_wrap_ids = self.seen_gift_wrap_ids.clone(); let event_loop_token = self.cancellation_token.child_token(); @@ -395,6 +429,7 @@ impl NostrServerTransport { encryption_mode, gift_wrap_mode, is_announced_server, + oversized_enabled, common_tags_snapshot, seen_gift_wrap_ids, event_loop_token, @@ -872,6 +907,7 @@ impl NostrServerTransport { encryption_mode: EncryptionMode, gift_wrap_mode: GiftWrapMode, is_announced_server: bool, + oversized_enabled: bool, common_tags_snapshot: announcement_manager::CommonTagsSnapshot, seen_gift_wrap_ids: Arc>>, cancel: CancellationToken, @@ -1153,9 +1189,7 @@ impl NostrServerTransport { let discovered = learn_peer_capabilities(&inner_tags); session.supports_encryption |= discovered.supports_encryption; session.supports_ephemeral_encryption |= discovered.supports_ephemeral_encryption; - // Only learn oversized support if CEP-22 is enabled on this server - // TODO: wire from config when CEP-22 lands - let oversized_enabled = false; + // CEP-22: only learn oversized support if it is enabled on this server. session.supports_oversized_transfer |= oversized_enabled && discovered.supports_oversized_transfer; @@ -1610,6 +1644,7 @@ mod tests { let snapshot = announcement_manager::CommonTagsSnapshot { server_info: None, extra_common_tags: vec![], + internal_common_tags: vec![], encryption_mode: EncryptionMode::Optional, gift_wrap_mode: GiftWrapMode::Optional, }; @@ -1627,6 +1662,7 @@ mod tests { let snapshot = announcement_manager::CommonTagsSnapshot { server_info: None, extra_common_tags: vec![], + internal_common_tags: vec![], encryption_mode: EncryptionMode::Disabled, gift_wrap_mode: GiftWrapMode::Optional, }; @@ -1724,6 +1760,7 @@ mod tests { let snapshot = announcement_manager::CommonTagsSnapshot { server_info: None, extra_common_tags: vec![], + internal_common_tags: vec![], encryption_mode: EncryptionMode::Optional, gift_wrap_mode: GiftWrapMode::Optional, }; @@ -1747,6 +1784,7 @@ mod tests { let snapshot = announcement_manager::CommonTagsSnapshot { server_info: Some(server_info), extra_common_tags: vec![], + internal_common_tags: vec![], encryption_mode: EncryptionMode::Disabled, gift_wrap_mode: GiftWrapMode::Optional, }; @@ -1768,6 +1806,7 @@ mod tests { let snapshot = announcement_manager::CommonTagsSnapshot { server_info: None, extra_common_tags: extra_tags, + internal_common_tags: vec![], encryption_mode: EncryptionMode::Disabled, gift_wrap_mode: GiftWrapMode::Optional, }; @@ -1811,4 +1850,117 @@ mod tests { let config = NostrServerTransportConfig::default(); assert_eq!(config.gift_wrap_mode, GiftWrapMode::Optional); } + + // ── CEP-22 oversized transfer capability advertisement ────── + + fn first_tag_values(tags: &[Tag]) -> Vec { + tags.iter().map(|t| t.clone().to_vec()[0].clone()).collect() + } + + async fn make_server_with_oversized(enabled: bool) -> NostrServerTransport { + let config = NostrServerTransportConfig { + oversized_transfer: OversizedTransferConfig::default().with_enabled(enabled), + ..Default::default() + }; + let pool: Arc = Arc::new(crate::relay::mock::MockRelayPool::new()); + NostrServerTransport::with_relay_pool(config, pool) + .await + .expect("server transport construction") + } + + #[test] + fn test_oversized_disabled_by_default() { + let config = NostrServerTransportConfig::default(); + assert!(!config.oversized_transfer.enabled); + } + + #[test] + fn test_oversized_support_tags_helper() { + let mut config = NostrServerTransportConfig::default(); + assert!(oversized_support_tags(&config).is_empty()); + config.oversized_transfer.enabled = true; + let names = first_tag_values(&oversized_support_tags(&config)); + assert_eq!(names, vec!["support_oversized_transfer"]); + } + + #[test] + fn test_oversized_builders() { + let config = NostrServerTransportConfig::default().with_oversized_enabled(true); + assert!(config.oversized_transfer.enabled); + let config = NostrServerTransportConfig::default() + .with_oversized_transfer(OversizedTransferConfig::enabled().with_threshold(123)); + assert!(config.oversized_transfer.enabled); + assert_eq!(config.oversized_transfer.threshold, 123); + } + + #[tokio::test] + async fn test_announcement_includes_oversized_tag_when_enabled() { + let server = make_server_with_oversized(true).await; + let names = first_tag_values(&server.announcement_manager.get_common_tags()); + assert!( + names.contains(&"support_oversized_transfer".to_string()), + "announcement common tags must advertise oversized support when enabled" + ); + } + + #[tokio::test] + async fn test_announcement_omits_oversized_tag_when_disabled() { + let server = make_server_with_oversized(false).await; + let names = first_tag_values(&server.announcement_manager.get_common_tags()); + assert!( + !names.contains(&"support_oversized_transfer".to_string()), + "announcement must not advertise oversized support when disabled" + ); + } + + #[tokio::test] + async fn test_first_response_snapshot_includes_oversized_tag_when_enabled() { + let server = make_server_with_oversized(true).await; + let snapshot = server.announcement_manager.common_tags_snapshot(); + let mut tags = Vec::new(); + snapshot.append_common_response_tags(&mut tags); + let names = first_tag_values(&tags); + assert!( + names.contains(&"support_oversized_transfer".to_string()), + "first-response replay must carry the oversized tag when enabled" + ); + } + + #[tokio::test] + async fn test_first_response_snapshot_omits_oversized_tag_when_disabled() { + let server = make_server_with_oversized(false).await; + let snapshot = server.announcement_manager.common_tags_snapshot(); + let mut tags = Vec::new(); + snapshot.append_common_response_tags(&mut tags); + let names = first_tag_values(&tags); + assert!(!names.contains(&"support_oversized_transfer".to_string())); + } + + #[test] + fn test_server_learns_client_oversized_only_when_enabled() { + // Demonstrates the gate's truth table: `learn_peer_capabilities` parses the + // client tag, and `enabled && supports` yields the learned flag. This does + // NOT pin the production gate at the `session.supports_oversized_transfer |=` + // line in `event_loop` - it reimplements that expression here, so a + // regression that hardcodes the flag in `event_loop` would not be caught. + let oversized_tag = Tag::custom( + TagKind::Custom(tags::SUPPORT_OVERSIZED_TRANSFER.into()), + Vec::::new(), + ); + let discovered = learn_peer_capabilities(&[oversized_tag]); + assert!(discovered.supports_oversized_transfer); + + // Disabled server: client flag must be ignored. + let mut session = ClientSession::new(false); + let oversized_enabled = false; + session.supports_oversized_transfer |= + oversized_enabled && discovered.supports_oversized_transfer; + assert!(!session.supports_oversized_transfer); + + // Enabled server: client flag is learned. + let oversized_enabled = true; + session.supports_oversized_transfer |= + oversized_enabled && discovered.supports_oversized_transfer; + assert!(session.supports_oversized_transfer); + } } From 4e6e50b7050feb5b9e9ae881517840006a93ebbe Mon Sep 17 00:00:00 2001 From: Harsh Date: Mon, 8 Jun 2026 12:56:54 +0530 Subject: [PATCH 097/116] fix: MockRelayPool live broadcast now respects subscription filters --- src/relay/mock.rs | 312 ++++++++++++++++++++++++++++++++++++---------- 1 file changed, 243 insertions(+), 69 deletions(-) diff --git a/src/relay/mock.rs b/src/relay/mock.rs index 301d639..0b0b26e 100644 --- a/src/relay/mock.rs +++ b/src/relay/mock.rs @@ -1,14 +1,19 @@ //! In-memory mock relay pool for network-free testing. //! //! Mirrors the design of the TypeScript SDK's `MockRelayHub`: -//! - `publish_event` stores the event and broadcasts it to all `notifications()` receivers. -//! - `subscribe` registers filters and immediately replays matching stored events through the -//! broadcast, so listeners that called `notifications()` before `subscribe()` see the replay. +//! - `publish_event` stores the event and delivers it only to pools whose +//! `subscribe()` filters match it — like a real relay, a subscriber sees only +//! the events its subscription selected. A pool that never subscribed (or +//! subscribed with no matching filter) receives nothing from live publishes. +//! - `subscribe` registers a pool's filters and immediately replays matching +//! stored events through that pool's channel, so listeners that called +//! `notifications()` before `subscribe()` see the replay. //! - `connect` / `disconnect` are no-ops — no sockets are opened. //! - Signing uses a freshly generated ephemeral `Keys`; `signer()` returns it wrapped in `Arc` //! so encryption code can call it without any real relay connection. use std::collections::HashMap; +use std::sync::atomic::{AtomicU64, Ordering}; use std::sync::Arc; use std::time::Duration; @@ -20,21 +25,32 @@ use nostr_sdk::prelude::*; use crate::core::error::{Error, Result}; use crate::relay::RelayPoolTrait; +/// Process-global source of unique pool ids, so each pool can key its own +/// subscription slot in the shared store without locking at construction time. +static NEXT_POOL_ID: AtomicU64 = AtomicU64::new(0); + // ── Internal state ──────────────────────────────────────────────────────────── +/// One linked pool's delivery slot: its broadcast sender plus the filters it +/// registered via `subscribe()`. A live publish is delivered through `tx` only +/// when one of `filters` matches the event. +struct Subscriber { + tx: tokio::sync::broadcast::Sender, + filters: Vec, +} + struct MockRelayInner { events: Vec, - /// Active subscriptions: id → filters registered by that subscription. - subscriptions: HashMap>, - next_sub_id: u32, + /// Per-pool subscription slots, keyed by `MockRelayPool::pool_id`. Populated + /// lazily on a pool's first `subscribe()` call. + subscribers: HashMap, } impl MockRelayInner { fn new() -> Self { Self { events: Vec::new(), - subscriptions: HashMap::new(), - next_sub_id: 0, + subscribers: HashMap::new(), } } } @@ -47,9 +63,12 @@ impl MockRelayInner { /// an `Arc` is expected. pub struct MockRelayPool { inner: Arc>, - /// Broadcast sender — every published event is sent here so that all - /// `notifications()` receivers see it. + /// This pool's own broadcast sender. `notifications()` receivers read from + /// it, and a live publish reaches it only when this pool's registered + /// `subscribe()` filters match the event. notification_tx: tokio::sync::broadcast::Sender, + /// Unique id keying this pool's subscription slot in the shared store. + pool_id: u64, /// Ephemeral key used for signing in `publish` / `sign` / `signer`. keys: Keys, } @@ -57,13 +76,7 @@ pub struct MockRelayPool { impl MockRelayPool { /// Create a new mock relay pool with a freshly generated ephemeral signing key. pub fn new() -> Self { - let keys = Keys::generate(); - let (tx, _rx) = tokio::sync::broadcast::channel(1024); - Self { - inner: Arc::new(Mutex::new(MockRelayInner::new())), - notification_tx: tx, - keys, - } + Self::with_keys(Keys::generate()) } /// The ephemeral public key used by this mock for signing. @@ -78,49 +91,43 @@ impl MockRelayPool { /// Like [`new`](Self::new) but with caller-provided signing keys. pub fn with_keys(keys: Keys) -> Self { + Self::linked(Arc::new(Mutex::new(MockRelayInner::new())), keys) + } + + /// Build a pool bound to an existing shared store, with its own channel, + /// pool id, and signing keys. + fn linked(inner: Arc>, keys: Keys) -> Self { let (tx, _rx) = tokio::sync::broadcast::channel(1024); Self { - inner: Arc::new(Mutex::new(MockRelayInner::new())), + inner, notification_tx: tx, + pool_id: NEXT_POOL_ID.fetch_add(1, Ordering::Relaxed), keys, } } /// Create a pair of linked mock relay pools with different signing keys. /// - /// Both pools share the same event store and notification channel; events - /// published by one are visible to the other's `notifications()` receivers. + /// Both pools share the same event store. Each has its own notification + /// channel; an event published by one reaches the other only when the + /// other's `subscribe()` filters match it (as a real relay would). pub fn create_pair() -> (Self, Self) { - let (tx, _rx) = tokio::sync::broadcast::channel(1024); let inner = Arc::new(Mutex::new(MockRelayInner::new())); - let a = Self { - inner: Arc::clone(&inner), - notification_tx: tx.clone(), - keys: Keys::generate(), - }; - let b = Self { - inner, - notification_tx: tx, - keys: Keys::generate(), - }; + let a = Self::linked(Arc::clone(&inner), Keys::generate()); + let b = Self::linked(inner, Keys::generate()); (a, b) } /// Create `n` linked mock relay pools with different signing keys. /// - /// All pools share the same event store and notification channel so events - /// published by any one pool are visible to all others' `notifications()` - /// receivers. Useful for multi-client integration tests. + /// All pools share the same event store; each gets its own notification + /// channel and delivery is scoped to each pool's `subscribe()` filters. + /// Useful for multi-client integration tests. pub fn create_linked_group(n: usize) -> Vec { assert!(n > 0, "group must have at least one pool"); - let (tx, _rx) = tokio::sync::broadcast::channel(1024); let inner = Arc::new(Mutex::new(MockRelayInner::new())); (0..n) - .map(|_| Self { - inner: Arc::clone(&inner), - notification_tx: tx.clone(), - keys: Keys::generate(), - }) + .map(|_| Self::linked(Arc::clone(&inner), Keys::generate())) .collect() } @@ -157,21 +164,27 @@ impl RelayPoolTrait for MockRelayPool { Ok(()) } - /// Store the event and broadcast it to all current `notifications()` receivers. + /// Store the event and deliver it to every linked pool whose registered + /// `subscribe()` filters match it, mirroring a real relay: a subscriber sees + /// only the events its subscription selected. Pools with no matching filter + /// (or no subscription at all) receive nothing. async fn publish_event(&self, event: &Event) -> Result { let event_id = event.id; - { - let mut inner = self.inner.lock().await; - inner.events.push(event.clone()); + let mut inner = self.inner.lock().await; + inner.events.push(event.clone()); + + for subscriber in inner.subscribers.values() { + let matches = subscriber + .filters + .iter() + .any(|f| f.match_event(event, MatchEventOptions::default())); + if matches { + // Ignore send errors: they just mean this pool has no active receiver. + let _ = subscriber.tx.send(make_notification(event.clone())); + } } - // Always broadcast — consumers filter by kind/pubkey/tag themselves, - // which mirrors how nostr-sdk's real notification stream works. - let notification = make_notification(event.clone()); - // Ignore send errors: they just mean there are no active receivers yet. - let _ = self.notification_tx.send(notification); - Ok(event_id) } @@ -193,9 +206,10 @@ impl RelayPoolTrait for MockRelayPool { Ok(Arc::new(self.keys.clone()) as Arc) } - /// Return a new broadcast receiver. Each call gets an independent receiver - /// that sees all events published *after* this call, plus any replayed by - /// a subsequent `subscribe()`. + /// Return a new broadcast receiver for this pool. It only sees events that + /// match the filters this pool registers via `subscribe()` — events + /// published *after* this call that match, plus any replayed by a subsequent + /// `subscribe()`. Without a matching subscription it sees nothing. fn notifications(&self) -> tokio::sync::broadcast::Receiver { self.notification_tx.subscribe() } @@ -205,26 +219,36 @@ impl RelayPoolTrait for MockRelayPool { Ok(self.keys.public_key()) } - /// Register the filters and immediately replay any already-stored events that - /// match them through the broadcast channel, mirroring the behaviour of a - /// real relay that sends historical events before EOSE. + /// Register this pool's filters (accumulating across calls, like multiple + /// active REQs) and immediately replay any already-stored events that match + /// the new filters through this pool's channel, mirroring a real relay that + /// sends historical events before EOSE. async fn subscribe(&self, filters: Vec) -> Result<()> { let replay = { let mut inner = self.inner.lock().await; - let sub_id = inner.next_sub_id; - inner.next_sub_id += 1; - - // Store filters first so the replay read comes from the stored value, - // ensuring the field is both written and read (no dead-code warning). - inner.subscriptions.insert(sub_id, filters); - // Clone events so we can release the events borrow before borrowing subscriptions. + // Snapshot events before touching the subscriber slot to keep the + // borrows disjoint. let events_snapshot = inner.events.clone(); - let stored = inner.subscriptions.get(&sub_id).expect("just inserted"); + + // Upsert this pool's slot (created on first subscribe), binding it to + // this pool's own channel and accumulating the new filters. + let tx = self.notification_tx.clone(); + let subscriber = inner + .subscribers + .entry(self.pool_id) + .or_insert_with(|| Subscriber { + tx, + filters: Vec::new(), + }); + subscriber.filters.extend(filters.iter().cloned()); + + // Replay only events matching the newly-added filters, as a real + // relay replays historical events per REQ. events_snapshot .into_iter() .filter(|e| { - stored + filters .iter() .any(|f| f.match_event(e, MatchEventOptions::default())) }) @@ -281,6 +305,7 @@ fn make_notification(event: Event) -> RelayPoolNotification { #[cfg(test)] mod tests { use super::*; + use crate::core::constants::CTXVM_MESSAGES_KIND; #[tokio::test] async fn connect_and_disconnect_are_noops() { @@ -290,9 +315,13 @@ mod tests { } #[tokio::test] - async fn publish_event_stores_and_broadcasts() { + async fn publish_event_stores_and_delivers_to_matching_subscriber() { let pool = MockRelayPool::new(); let mut rx = pool.notifications(); + // A live publish is only delivered to a pool that subscribed for it. + pool.subscribe(vec![Filter::new().kind(Kind::TextNote)]) + .await + .unwrap(); let keys = Keys::generate(); let event = EventBuilder::new(Kind::TextNote, "hello") @@ -310,6 +339,149 @@ mod tests { } } + #[tokio::test] + async fn publish_without_subscription_delivers_nothing() { + let pool = MockRelayPool::new(); + let mut rx = pool.notifications(); + + let keys = Keys::generate(); + let event = EventBuilder::new(Kind::TextNote, "unheard") + .sign_with_keys(&keys) + .unwrap(); + pool.publish_event(&event).await.unwrap(); + + // Stored, but never delivered live without a matching subscription. + assert_eq!(pool.stored_events().await.len(), 1); + assert!(rx.try_recv().is_err()); + } + + #[tokio::test] + async fn live_publish_respects_subscriber_filters() { + let pool = MockRelayPool::new(); + let mut rx = pool.notifications(); + pool.subscribe(vec![Filter::new().kind(Kind::TextNote)]) + .await + .unwrap(); + + let keys = Keys::generate(); + let matching = EventBuilder::new(Kind::TextNote, "keep") + .sign_with_keys(&keys) + .unwrap(); + let other = EventBuilder::new(Kind::Custom(9999), "drop") + .sign_with_keys(&keys) + .unwrap(); + pool.publish_event(&matching).await.unwrap(); + pool.publish_event(&other).await.unwrap(); + + // Only the kind that matches the subscription is delivered. + let notif = rx.try_recv().unwrap(); + if let RelayPoolNotification::Event { event: e, .. } = notif { + assert_eq!(e.id, matching.id); + } else { + panic!("expected Event notification"); + } + assert!(rx.try_recv().is_err()); + } + + #[tokio::test] + async fn subscribe_accumulates_filters_across_calls() { + // Multiple subscribe() calls behave like multiple active REQs: every + // registered filter stays live, so events matching any of them deliver. + let pool = MockRelayPool::new(); + let mut rx = pool.notifications(); + pool.subscribe(vec![Filter::new().kind(Kind::TextNote)]) + .await + .unwrap(); + pool.subscribe(vec![Filter::new().kind(Kind::Custom(7777))]) + .await + .unwrap(); + + let keys = Keys::generate(); + let kind_a = EventBuilder::new(Kind::TextNote, "a") + .sign_with_keys(&keys) + .unwrap(); + let kind_b = EventBuilder::new(Kind::Custom(7777), "b") + .sign_with_keys(&keys) + .unwrap(); + let neither = EventBuilder::new(Kind::Custom(9999), "c") + .sign_with_keys(&keys) + .unwrap(); + + pool.publish_event(&kind_a).await.unwrap(); + pool.publish_event(&kind_b).await.unwrap(); + pool.publish_event(&neither).await.unwrap(); + + // Both accumulated filters remain active; the unmatched kind is dropped. + let first = rx.try_recv().unwrap(); + let second = rx.try_recv().unwrap(); + let received: Vec = [first, second] + .into_iter() + .map(|n| match n { + RelayPoolNotification::Event { event, .. } => event.id, + _ => panic!("expected Event notification"), + }) + .collect(); + assert!(received.contains(&kind_a.id), "kind A must be delivered"); + assert!(received.contains(&kind_b.id), "kind B must be delivered"); + assert!( + !received.contains(&neither.id), + "unmatched kind must not be delivered" + ); + assert!( + rx.try_recv().is_err(), + "only the two matching events deliver" + ); + } + + #[tokio::test] + async fn linked_pools_only_receive_their_subscribed_events() { + // The fix that makes EncryptionMode::Disabled e2e tests work: a pool + // subscribed to its own p-tag never receives an event addressed to a peer. + let (a, b) = MockRelayPool::create_pair(); + let a_pubkey = a.mock_public_key(); + let b_pubkey = b.mock_public_key(); + let mut a_rx = a.notifications(); + let mut b_rx = b.notifications(); + + // Each pool subscribes for events p-tagged to itself. + a.subscribe(vec![Filter::new() + .kind(Kind::Custom(CTXVM_MESSAGES_KIND)) + .custom_tag( + SingleLetterTag::lowercase(Alphabet::P), + a_pubkey.to_hex(), + )]) + .await + .unwrap(); + b.subscribe(vec![Filter::new() + .kind(Kind::Custom(CTXVM_MESSAGES_KIND)) + .custom_tag( + SingleLetterTag::lowercase(Alphabet::P), + b_pubkey.to_hex(), + )]) + .await + .unwrap(); + + // `a` publishes a response addressed to `b` (p-tag = b). + let keys = Keys::generate(); + let response = EventBuilder::new(Kind::Custom(CTXVM_MESSAGES_KIND), "to-b") + .tag(Tag::public_key(b_pubkey)) + .sign_with_keys(&keys) + .unwrap(); + a.publish_event(&response).await.unwrap(); + + // `b` receives it; `a` does NOT echo its own peer-addressed event. + let notif = b_rx.try_recv().unwrap(); + if let RelayPoolNotification::Event { event: e, .. } = notif { + assert_eq!(e.id, response.id); + } else { + panic!("expected Event notification for b"); + } + assert!( + a_rx.try_recv().is_err(), + "a must not receive its own b-addressed event" + ); + } + #[tokio::test] async fn publish_signs_and_stores() { let pool = MockRelayPool::new(); @@ -353,9 +525,8 @@ mod tests { pool.publish_event(&e1).await.unwrap(); pool.publish_event(&e2).await.unwrap(); - // Drain the two publish notifications - rx.try_recv().unwrap(); - rx.try_recv().unwrap(); + // No subscription yet, so nothing was delivered live. + assert!(rx.try_recv().is_err()); // Subscribe for TextNote only — e1 should be replayed, e2 not let filter = Filter::new().kind(Kind::TextNote); @@ -375,6 +546,9 @@ mod tests { async fn notifications_receives_future_publishes() { let pool = MockRelayPool::new(); let mut rx = pool.notifications(); + pool.subscribe(vec![Filter::new().kind(Kind::TextNote)]) + .await + .unwrap(); let keys = Keys::generate(); let event = EventBuilder::new(Kind::TextNote, "future") From 00e2f85503f07ba823874a28fc2900b6104760bf Mon Sep 17 00:00:00 2001 From: Harsh Date: Mon, 8 Jun 2026 16:27:02 +0530 Subject: [PATCH 098/116] fix: address review - SessionSnapshot capabilities, real gate tests, rename get_capability_tags --- src/transport/server/announcement_manager.rs | 16 +- src/transport/server/mod.rs | 17 +- src/transport/server/session_store.rs | 46 +++++ tests/transport_integration.rs | 178 +++++++++++++++++++ 4 files changed, 245 insertions(+), 12 deletions(-) diff --git a/src/transport/server/announcement_manager.rs b/src/transport/server/announcement_manager.rs index fa36459..c680899 100644 --- a/src/transport/server/announcement_manager.rs +++ b/src/transport/server/announcement_manager.rs @@ -203,8 +203,10 @@ impl AnnouncementManager { tags } - /// Build capability tags based on encryption and gift-wrap mode. - pub fn get_capability_tags(&self) -> Vec { + /// Build the **encryption** capability tags based on encryption and gift-wrap + /// mode. Returns encryption capability tags only; CEP-22 oversized transfer and + /// other capabilities are contributed separately via `internal_common_tags`. + pub fn get_encryption_capability_tags(&self) -> Vec { let mut tags = Vec::new(); if self.encryption_mode != EncryptionMode::Disabled { tags.push(Tag::custom( @@ -234,7 +236,7 @@ impl AnnouncementManager { return cached.clone(); } let mut tags = self.get_server_info_tags(); - tags.extend(self.get_capability_tags()); + tags.extend(self.get_encryption_capability_tags()); tags.extend(self.extra_common_tags.iter().cloned()); tags.extend(self.internal_common_tags.iter().cloned()); *cache = Some(tags.clone()); @@ -990,7 +992,7 @@ mod tests { #[test] fn capability_tags_encryption_enabled() { let mgr = make_manager(EncryptionMode::Optional, GiftWrapMode::Persistent, None); - let tags = mgr.get_capability_tags(); + let tags = mgr.get_encryption_capability_tags(); let names: Vec = tags.iter().map(tag_name).collect(); assert!(names.contains(&tags::SUPPORT_ENCRYPTION.to_string())); } @@ -998,7 +1000,7 @@ mod tests { #[test] fn capability_tags_ephemeral_enabled() { let mgr = make_manager(EncryptionMode::Optional, GiftWrapMode::Optional, None); - let tags = mgr.get_capability_tags(); + let tags = mgr.get_encryption_capability_tags(); let names: Vec = tags.iter().map(tag_name).collect(); assert!(names.contains(&tags::SUPPORT_ENCRYPTION_EPHEMERAL.to_string())); } @@ -1006,7 +1008,7 @@ mod tests { #[test] fn capability_tags_ephemeral_excluded() { let mgr = make_manager(EncryptionMode::Optional, GiftWrapMode::Persistent, None); - let tags = mgr.get_capability_tags(); + let tags = mgr.get_encryption_capability_tags(); let names: Vec = tags.iter().map(tag_name).collect(); assert!( !names.contains(&tags::SUPPORT_ENCRYPTION_EPHEMERAL.to_string()), @@ -1017,7 +1019,7 @@ mod tests { #[test] fn capability_tags_encryption_disabled() { let mgr = make_manager(EncryptionMode::Disabled, GiftWrapMode::Optional, None); - let tags = mgr.get_capability_tags(); + let tags = mgr.get_encryption_capability_tags(); assert!( tags.is_empty(), "Disabled encryption should produce no capability tags" diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index a0d9457..6063728 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -745,6 +745,13 @@ impl NostrServerTransport { self.message_rx.take() } + /// Read-only snapshot of a client's learned session state, or `None` if no + /// session exists for that public key (hex). Exposes learned peer + /// capabilities (encryption, ephemeral encryption, CEP-22 oversized transfer). + pub async fn session_snapshot(&self, client_pubkey: &str) -> Option { + self.sessions.get_session(client_pubkey).await + } + /// Sets extra discovery tags to include in announcements and first-response discovery replay. pub fn set_announcement_extra_tags(&mut self, tags: Vec) { self.announcement_manager.set_extra_common_tags(tags); @@ -1938,11 +1945,11 @@ mod tests { #[test] fn test_server_learns_client_oversized_only_when_enabled() { - // Demonstrates the gate's truth table: `learn_peer_capabilities` parses the - // client tag, and `enabled && supports` yields the learned flag. This does - // NOT pin the production gate at the `session.supports_oversized_transfer |=` - // line in `event_loop` - it reimplements that expression here, so a - // regression that hardcodes the flag in `event_loop` would not be caught. + // Unit-level check that `learn_peer_capabilities` parses the client tag and + // the `enabled && supports` truth table holds. The production gate in + // `event_loop` is exercised end-to-end by the integration tests + // `server_gate_allows_oversized_when_enabled` / + // `server_gate_blocks_oversized_when_disabled` in tests/transport_integration.rs. let oversized_tag = Tag::custom( TagKind::Custom(tags::SUPPORT_OVERSIZED_TRANSFER.into()), Vec::::new(), diff --git a/src/transport/server/session_store.rs b/src/transport/server/session_store.rs index a208789..daf8141 100644 --- a/src/transport/server/session_store.rs +++ b/src/transport/server/session_store.rs @@ -109,6 +109,9 @@ impl SessionStore { is_encrypted: s.is_encrypted, has_sent_common_tags: s.has_sent_common_tags, supports_ephemeral_gift_wrap: s.supports_ephemeral_gift_wrap, + supports_encryption: s.supports_encryption, + supports_ephemeral_encryption: s.supports_ephemeral_encryption, + supports_oversized_transfer: s.supports_oversized_transfer, }) } @@ -162,6 +165,9 @@ impl SessionStore { is_encrypted: s.is_encrypted, has_sent_common_tags: s.has_sent_common_tags, supports_ephemeral_gift_wrap: s.supports_ephemeral_gift_wrap, + supports_encryption: s.supports_encryption, + supports_ephemeral_encryption: s.supports_ephemeral_encryption, + supports_oversized_transfer: s.supports_oversized_transfer, }, ) }) @@ -235,6 +241,12 @@ pub struct SessionSnapshot { pub has_sent_common_tags: bool, /// Whether the peer advertised support for ephemeral gift wraps (CEP-19) pub supports_ephemeral_gift_wrap: bool, + /// Whether the peer advertised encryption support (CEP-35 learned capability) + pub supports_encryption: bool, + /// Whether the peer advertised ephemeral-encryption support (CEP-35 learned capability) + pub supports_ephemeral_encryption: bool, + /// Whether the peer advertised CEP-22 oversized-transfer support (learned, gated by server config) + pub supports_oversized_transfer: bool, } #[cfg(test)] @@ -351,6 +363,40 @@ mod tests { assert!(!session.supports_oversized_transfer); } + #[tokio::test] + async fn snapshot_surfaces_learned_capabilities() { + let store = SessionStore::new(); + let r = routes(); + store.get_or_create_session("client-1", false, &r).await; + + // A fresh snapshot reports every capability as false. + let snap = store.get_session("client-1").await.unwrap(); + assert!(!snap.supports_encryption); + assert!(!snap.supports_ephemeral_encryption); + assert!(!snap.supports_oversized_transfer); + + // Learned capabilities must round-trip through the snapshot. + { + let mut sessions = store.write().await; + let session = sessions.get_mut("client-1").unwrap(); + session.supports_encryption = true; + session.supports_ephemeral_encryption = true; + session.supports_oversized_transfer = true; + } + + let snap = store.get_session("client-1").await.unwrap(); + assert!(snap.supports_encryption); + assert!(snap.supports_ephemeral_encryption); + assert!(snap.supports_oversized_transfer); + + // get_all_sessions exposes the same fields. + let all = store.get_all_sessions().await; + let (_, snap_all) = all.iter().find(|(k, _)| k == "client-1").unwrap(); + assert!(snap_all.supports_encryption); + assert!(snap_all.supports_ephemeral_encryption); + assert!(snap_all.supports_oversized_transfer); + } + #[tokio::test] async fn has_sent_common_tags_flag() { let store = SessionStore::new(); diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index 101effc..f6f2946 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -2661,6 +2661,184 @@ async fn server_learns_capabilities_from_client_request() { assert_eq!(incoming.client_pubkey, incoming2.client_pubkey); } +/// CEP-22: with oversized transfer enabled on the server, the server learns the +/// client's advertised `support_oversized_transfer` flag as a request flows +/// through the real `event_loop` gate. Exercises the production gate end-to-end +/// (not the inline truth-table unit test). +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn server_gate_allows_oversized_when_enabled() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_enabled(true), + as_pool(server_pool), + ) + .await + .unwrap(); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_enabled(true), + as_pool(client_pool), + ) + .await + .unwrap(); + + let mut server_rx = server.take_message_receiver().unwrap(); + server.start().await.unwrap(); + client.start().await.unwrap(); + let_event_loops_start().await; + + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: None, + })) + .await + .unwrap(); + + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .unwrap() + .unwrap(); + + // The session-state update precedes the IncomingRequest dispatch, so the + // learned flag is committed by the time we receive the request. + let snap = server + .session_snapshot(&incoming.client_pubkey) + .await + .expect("server must have a session for the client"); + assert!( + snap.supports_oversized_transfer, + "server with oversized enabled must learn the client's advertised support" + ); +} + +/// CEP-22: with oversized transfer disabled on the server, the gate drops the +/// client's advertised `support_oversized_transfer` flag — the session never +/// records support even though the client advertised it. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn server_gate_blocks_oversized_when_disabled() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_enabled(false), + as_pool(server_pool), + ) + .await + .unwrap(); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_enabled(true), + as_pool(client_pool), + ) + .await + .unwrap(); + + let mut server_rx = server.take_message_receiver().unwrap(); + server.start().await.unwrap(); + client.start().await.unwrap(); + let_event_loops_start().await; + + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: None, + })) + .await + .unwrap(); + + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .unwrap() + .unwrap(); + + let snap = server + .session_snapshot(&incoming.client_pubkey) + .await + .expect("server must have a session for the client"); + assert!( + !snap.supports_oversized_transfer, + "server with oversized disabled must not learn the client's advertised support" + ); +} + +/// CEP-22: even with oversized transfer enabled, the server only learns support +/// the client actually advertised. A client that does not advertise the tag +/// leaves the session flag false. Pins the `&& discovered.supports_oversized_transfer` +/// operand of the gate — a regression dropping it would learn `true` regardless. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn server_gate_blocks_oversized_when_client_does_not_advertise() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_enabled(true), + as_pool(server_pool), + ) + .await + .unwrap(); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_enabled(false), + as_pool(client_pool), + ) + .await + .unwrap(); + + let mut server_rx = server.take_message_receiver().unwrap(); + server.start().await.unwrap(); + client.start().await.unwrap(); + let_event_loops_start().await; + + client + .send(&JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "initialize".to_string(), + params: None, + })) + .await + .unwrap(); + + let incoming = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()) + .await + .unwrap() + .unwrap(); + + let snap = server + .session_snapshot(&incoming.client_pubkey) + .await + .expect("server must have a session for the client"); + assert!( + !snap.supports_oversized_transfer, + "server must not learn oversized support the client never advertised" + ); +} + #[tokio::test(flavor = "multi_thread", worker_threads = 2)] async fn server_disabled_encryption_omits_encryption_tags() { let (client_pool, server_pool) = MockRelayPool::create_pair(); From decd7545b92c40bb12c43367100a3ebe9a00e0c6 Mon Sep 17 00:00:00 2001 From: Harsh Date: Wed, 10 Jun 2026 10:56:26 +0530 Subject: [PATCH 099/116] feat: CEP-22 - transport integration, outbound split, inbound reassembly, accept handshake --- src/transport/client/correlation_store.rs | 14 + src/transport/client/mod.rs | 485 +++++++++++- src/transport/oversized_transfer/mod.rs | 19 + src/transport/oversized_transfer/sender.rs | 241 ++++++ src/transport/oversized_transfer/sizing.rs | 278 +++++++ src/transport/server/mod.rs | 428 +++++++++- tests/transport_integration.rs | 865 ++++++++++++++++++++- 7 files changed, 2301 insertions(+), 29 deletions(-) create mode 100644 src/transport/oversized_transfer/sender.rs create mode 100644 src/transport/oversized_transfer/sizing.rs diff --git a/src/transport/client/correlation_store.rs b/src/transport/client/correlation_store.rs index a0678b6..2b1ddd2 100644 --- a/src/transport/client/correlation_store.rs +++ b/src/transport/client/correlation_store.rs @@ -96,6 +96,20 @@ impl ClientCorrelationStore { .map(|r| r.original_id.clone()) } + /// Refresh a pending request's registration timestamp without disturbing its + /// `original_id`/`is_initialize`. Used by CEP-22 oversized transfers (OD-2): + /// each inbound frame "touches" the entry so [`sweep_expired`](Self::sweep_expired) + /// does not evict it mid-transfer. Returns `true` if the entry existed. + pub async fn touch(&self, event_id: &str) -> bool { + let mut cache = self.pending_requests.write().await; + if let Some(entry) = cache.get_mut(event_id) { + entry.registered_at = Instant::now(); + true + } else { + false + } + } + /// Number of pending requests currently tracked. pub async fn count(&self) -> usize { self.pending_requests.read().await.len() diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index d114455..4f87f5c 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -10,6 +10,7 @@ pub mod server_relay_discovery; pub use correlation_store::ClientCorrelationStore; +use std::collections::HashMap; use std::num::NonZeroUsize; use std::sync::atomic::{AtomicBool, Ordering}; use std::sync::{Arc, Mutex}; @@ -17,6 +18,7 @@ use std::time::Duration; use lru::LruCache; use nostr_sdk::prelude::*; +use tokio::sync::oneshot; use tokio_util::sync::CancellationToken; use crate::core::constants::*; @@ -28,7 +30,11 @@ use crate::encryption; use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; use crate::transport::discovery_tags::{parse_discovered_peer_capabilities, PeerCapabilities}; -use crate::transport::oversized_transfer::OversizedTransferConfig; +use crate::transport::oversized_transfer::{ + build_oversized_frames, resolve_safe_chunk_size, send_oversized_transfer, OversizedFrame, + OversizedSenderOptions, OversizedTransferConfig, OversizedTransferReceiver, + NOTIFICATIONS_PROGRESS_METHOD, +}; const LOG_TARGET: &str = "contextvm_sdk::transport::client"; @@ -158,6 +164,13 @@ pub struct NostrClientTransport { /// Duplicate outer ids are skipped before decrypt; ids are inserted only after success /// so failed decrypt/verify can be retried on redelivery. seen_gift_wrap_ids: Arc>>, + /// CEP-22: reassembly engine for inbound oversized responses from the server + /// (single peer). Cleared on [`close`](Self::close). + oversized_receiver: Arc>, + /// CEP-22: outstanding `accept` handshake waiters keyed by `progressToken`. A + /// `send()` awaiting the server's `accept` registers a one-shot here before + /// publishing `start`; the event loop fires it when the `accept` frame arrives. + accept_waiters: Arc>>>, /// Channel for receiving processed MCP messages from the event loop. message_tx: Option>, message_rx: Option>, @@ -216,12 +229,19 @@ impl NostrClientTransport { .clone() .unwrap_or_default(); + let oversized_receiver = Arc::new(Mutex::new(OversizedTransferReceiver::with_policy( + (&config.oversized_transfer).into(), + ))); + let accept_waiters = Arc::new(Mutex::new(HashMap::new())); + Ok(Self { base: BaseTransport { relay_pool, encryption_mode: config.encryption_mode, is_connected: false, }, + oversized_receiver, + accept_waiters, config, server_pubkey, hinted_relay_urls, @@ -279,12 +299,19 @@ impl NostrClientTransport { encryption_mode = ?config.encryption_mode, "Created client transport (with_relay_pool)" ); + let oversized_receiver = Arc::new(Mutex::new(OversizedTransferReceiver::with_policy( + (&config.oversized_transfer).into(), + ))); + let accept_waiters = Arc::new(Mutex::new(HashMap::new())); + Ok(Self { base: BaseTransport { relay_pool, encryption_mode: config.encryption_mode, is_connected: false, }, + oversized_receiver, + accept_waiters, config, server_pubkey, hinted_relay_urls, @@ -374,6 +401,8 @@ impl NostrClientTransport { let init_event = self.server_initialize_event.clone(); let server_supports_ephemeral = self.server_supports_ephemeral.clone(); let seen_gift_wrap_ids = self.seen_gift_wrap_ids.clone(); + let oversized_receiver = self.oversized_receiver.clone(); + let accept_waiters = self.accept_waiters.clone(); let timeout = self.config.timeout; let token = self.cancellation_token.child_token(); @@ -389,6 +418,8 @@ impl NostrClientTransport { init_event, server_supports_ephemeral, seen_gift_wrap_ids, + oversized_receiver, + accept_waiters, timeout, token, ) @@ -410,6 +441,23 @@ impl NostrClientTransport { let _ = handle.await; } self.message_tx.take(); + // CEP-22: release reassembly state and drop any accept waiters so an + // in-flight `send()` awaiter unblocks (cancelled) instead of hanging to + // its accept timeout. + { + let mut receiver = match self.oversized_receiver.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + receiver.clear(); + } + { + let mut waiters = match self.accept_waiters.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + waiters.clear(); + } self.base.disconnect().await } @@ -438,7 +486,111 @@ impl NostrClientTransport { vec![] }; let tags = BaseTransport::compose_outbound_tags(&base_tags, &discovery_tags, &[]); + let gift_wrap_kind = self.choose_outbound_gift_wrap_kind(); + let discovery_sent = !discovery_tags.is_empty(); + + // CEP-22: only a request carrying a `progressToken` is eligible for oversized + // fragmentation (the token addresses the frames); extract it once up front. + let oversized_token: Option = + if is_request && self.config.oversized_transfer.enabled { + match message { + JsonRpcMessage::Request(req) => req + .params + .as_ref() + .and_then(|p| p.get("_meta")) + .and_then(|m| m.get("progressToken")) + .and_then(|t| t.as_str()) + .map(String::from), + _ => None, + } + } else { + None + }; + // CEP-22: fragment when the message would not fit in a single Nostr event. + // Relay size limits apply to the *published* event, so the decision is made + // on the published byte size — not the raw payload — which is what actually + // grows under JSON escaping and gift-wrap encryption (mirrors TS + // `measurePublishedMcpMessageSize`). The raw serialized length is a cheap + // lower bound: when it already meets the threshold the message is + // conclusively oversized and we fragment without building a single event — + // an escape-heavy payload could otherwise overflow NIP-44's plaintext limit + // while we measure. + if let Some(token) = oversized_token.as_deref() { + let content = serde_json::to_string(message)?; + let threshold = self.config.oversized_transfer.threshold; + if content.len() >= threshold { + return self + .send_oversized_request( + message, + &content, + token, + base_tags, + tags, + discovery_sent, + ) + .await; + } + // Borderline: a sub-threshold payload can still cross the threshold once + // signed, JSON-escaped, and (when enabled) gift-wrapped. Build the single + // event once, measure its real published size, and reuse it if it fits. + match self + .base + .prepare_mcp_message( + message, + &self.server_pubkey, + CTXVM_MESSAGES_KIND, + tags.clone(), + None, + Some(gift_wrap_kind), + ) + .await + { + Ok((event_id, publishable_event)) => { + let published_len = serde_json::to_string(&publishable_event) + .map(|s| s.len()) + .unwrap_or(usize::MAX); + if published_len > threshold { + return self + .send_oversized_request( + message, + &content, + token, + base_tags, + tags, + discovery_sent, + ) + .await; + } + return self + .publish_single_event(message, event_id, publishable_event, discovery_sent) + .await; + } + Err(error) => { + // Could not build even one event (e.g. NIP-44 plaintext overflow + // from an escape-heavy payload) → it cannot be sent as a single + // event; fragment it. + tracing::debug!( + target: LOG_TARGET, + error = %error, + "Single-event build failed; sending as oversized transfer" + ); + return self + .send_oversized_request( + message, + &content, + token, + base_tags, + tags, + discovery_sent, + ) + .await; + } + } + } + + // Single-event path: not oversized-eligible (notification, feature disabled, + // or no progressToken). let (event_id, publishable_event) = self .base .prepare_mcp_message( @@ -447,7 +599,7 @@ impl NostrClientTransport { CTXVM_MESSAGES_KIND, tags, None, - Some(self.choose_outbound_gift_wrap_kind()), + Some(gift_wrap_kind), ) .await .map_err(|error| { @@ -461,6 +613,21 @@ impl NostrClientTransport { error })?; + self.publish_single_event(message, event_id, publishable_event, discovery_sent) + .await + } + + /// Register (for requests) and publish one prepared MCP event, flipping the + /// one-shot discovery flag after a successful publish. Shared by the + /// non-oversized send paths so the event built for the CEP-22 size check is + /// reused for publishing rather than re-encrypted. + async fn publish_single_event( + &self, + message: &JsonRpcMessage, + event_id: EventId, + publishable_event: Event, + discovery_sent: bool, + ) -> Result<()> { if let JsonRpcMessage::Request(ref req) = message { let is_initialize = req.method == INITIALIZE_METHOD; self.pending_requests @@ -481,7 +648,7 @@ impl NostrClientTransport { } // Flip one-shot flag only after successful publish - if is_request && !discovery_tags.is_empty() { + if discovery_sent { self.has_sent_discovery_tags.store(true, Ordering::Relaxed); } @@ -494,6 +661,146 @@ impl NostrClientTransport { Ok(()) } + /// CEP-22: publish a request as an ordered oversized-transfer sequence. + /// + /// Builds `start → chunks… → end` frames, registers an `accept` waiter before + /// publishing `start` when the server's support is not yet known, drives the + /// §1 [`send_oversized_transfer`] sequencer, and registers the pending request + /// against the **end** frame's event id (the value the server correlates its + /// response to). One-shot discovery tags ride the `start` frame only. + async fn send_oversized_request( + &self, + message: &JsonRpcMessage, + content: &str, + token: &str, + base_tags: Vec, + start_tags: Vec, + discovery_sent: bool, + ) -> Result<()> { + // The handshake is required until the server is known to support oversized + // transfer; once learned, chunks start immediately (no accept slot). + let needs_accept = !self + .discovered_server_capabilities() + .supports_oversized_transfer; + + let gift_wrap_kind = self.choose_outbound_gift_wrap_kind(); + // Effective encryption for these frames (the publish closure passes `None`, + // letting `should_encrypt` decide from the mode — resolve the same boolean + // here so the sizing measurement matches the real published frames). + let is_encrypted = self.base.should_encrypt(CTXVM_MESSAGES_KIND, None); + + // CEP-22: derive a per-chunk payload budget so every published frame stays + // under the threshold even after the JSON-RPC envelope, signature, and + // (when encrypted) gift-wrap expansion. Mirrors TS `resolveSafeOversizedChunkSize`. + // Continuation (chunk) frames carry the bare recipient `p`-tags (`base_tags`), + // so size against those. + let chunk_size = resolve_safe_chunk_size( + self.config.oversized_transfer.chunk_size, + &self.base, + &self.server_pubkey, + &base_tags, + is_encrypted, + Kind::Custom(gift_wrap_kind), + self.config.oversized_transfer.threshold, + ) + .await?; + + let options = OversizedSenderOptions::new(token) + .with_chunk_size(chunk_size) + .with_accept_handshake(needs_accept); + let frames = build_oversized_frames(content, &options)?; + + // Register the accept-waiter BEFORE publishing `start` so an early `accept` + // (decoded on the event-loop task) is never lost. + let await_accept = if needs_accept { + let (accept_tx, accept_rx) = oneshot::channel(); + { + let mut waiters = match self.accept_waiters.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + waiters.insert(token.to_string(), accept_tx); + } + Some(accept_rx) + } else { + None + }; + + // Per-frame publish: the start frame carries one-shot discovery tags; the + // rest carry bare recipient tags. Mirrors the prepare+publish pair in `send`. + let base = &self.base; + let server_pubkey = self.server_pubkey; + let mut start_tags = Some(start_tags); + let publish = move |frame: JsonRpcNotification| { + let tags = start_tags.take().unwrap_or_else(|| base_tags.clone()); + async move { + let msg = JsonRpcMessage::Notification(frame); + let (event_id, publishable) = base + .prepare_mcp_message( + &msg, + &server_pubkey, + CTXVM_MESSAGES_KIND, + tags, + None, + Some(gift_wrap_kind), + ) + .await?; + base.relay_pool.publish_event(&publishable).await?; + Ok::(event_id) + } + }; + + let accept_timeout = + Duration::from_millis(self.config.oversized_transfer.accept_timeout_ms); + let result = + send_oversized_transfer(frames, needs_accept, await_accept, accept_timeout, publish) + .await; + + // Drop the accept-waiter entry regardless of outcome. + if needs_accept { + let mut waiters = match self.accept_waiters.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + waiters.remove(token); + } + + let end_id = match result { + Ok(id) => id, + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + server_pubkey = %self.server_pubkey.to_hex(), + method = ?message.method(), + "Failed to send oversized client request" + ); + return Err(error); + } + }; + + // Register the pending request against the END frame's event id. + if let JsonRpcMessage::Request(ref req) = message { + let is_initialize = req.method == INITIALIZE_METHOD; + self.pending_requests + .register(end_id.to_hex(), req.id.clone(), is_initialize) + .await; + } + + // Flip the one-shot discovery flag after a successful transfer. + if discovery_sent { + self.has_sent_discovery_tags.store(true, Ordering::Relaxed); + } + + tracing::debug!( + target: LOG_TARGET, + end_event_id = %end_id.to_hex(), + method = ?message.method(), + "Sent oversized client request" + ); + Ok(()) + } + /// Take the message receiver for consuming incoming messages. pub fn take_message_receiver( &mut self, @@ -535,6 +842,8 @@ impl NostrClientTransport { init_event: Arc>>, server_supports_ephemeral: Arc, seen_gift_wrap_ids: Arc>>, + oversized_receiver: Arc>, + accept_waiters: Arc>>>, timeout: Duration, cancel: CancellationToken, ) { @@ -577,6 +886,8 @@ impl NostrClientTransport { &init_event, &server_supports_ephemeral, &seen_gift_wrap_ids, + &oversized_receiver, + &accept_waiters, &relay_pool, ) .await; @@ -659,12 +970,35 @@ impl NostrClientTransport { Ok(g) => g, Err(p) => p.into_inner(), }; - if stored.is_none() { - *stored = Some(event.clone()); + match stored.as_ref() { + // First discovery-tag-carrying event becomes the session baseline. + None => *stored = Some(event.clone()), + // CEP-35 upgrade (mirrors TS `inbound-coordinator`): if the baseline was + // captured from a non-initialize event (e.g. the first discovery tags + // arrived on a notification) and this event carries a full + // `InitializeResult` (has `protocolVersion`), upgrade the baseline to the + // richer initialize response so `get_server_initialize_event` exposes the + // full server identity/capabilities. Never downgrades. + Some(existing) => { + if !Self::event_has_initialize_result(existing) + && Self::event_has_initialize_result(event) + { + *stored = Some(event.clone()); + } + } } - // Note: TS SDK has an upgrade path where a later event with an InitializeResult - // replaces a non-initialize baseline. Not implemented here -- edge case only - // relevant if the first server message with discovery tags is a notification. + } + + /// Returns `true` when the event's `content` parses to a JSON-RPC response + /// whose `result` is a full MCP `InitializeResult` (keyed on `protocolVersion`, + /// matching the TS `InitializeResultSchema` marker). + fn event_has_initialize_result(event: &Event) -> bool { + serde_json::from_str::(&event.content) + .ok() + .as_ref() + .and_then(|content| content.get("result")) + .and_then(|result| result.get("protocolVersion")) + .is_some() } /// Returns a clone of the first inbound event that carried server discovery tags. @@ -697,6 +1031,8 @@ impl NostrClientTransport { init_event: &Arc>>, server_supports_ephemeral: &Arc, seen_gift_wrap_ids: &Arc>>, + oversized_receiver: &Arc>, + accept_waiters: &Arc>>>, relay_pool: &Arc, ) { let event = match notification { @@ -840,6 +1176,85 @@ impl NostrClientTransport { server_supports_ephemeral.store(true, Ordering::Relaxed); } + // CEP-22: intercept oversized-transfer frames ABOVE the correlation gate + // below. This is mandatory: an `accept` is e-tagged to the start frame + // (not in `pending`), and chunk/end response frames must be reassembled + // rather than delivered raw. Plain `notifications/progress` (no `cvm`) and + // ordinary responses fall through untouched. + if let Ok(notif) = serde_json::from_str::(&actual_event_content) { + if notif.method == NOTIFICATIONS_PROGRESS_METHOD + && OversizedTransferReceiver::is_oversized_frame(¬if) + { + let token = notif + .params + .as_ref() + .and_then(|p| p.get("progressToken")) + .and_then(|t| t.as_str()); + + // Route `accept` frames to the waiting sender by progressToken + // (their e-tag is the start-frame id, which is not in `pending`). + let is_accept = notif + .params + .as_ref() + .and_then(|p| p.get("cvm")) + .and_then(OversizedFrame::from_cvm_value) + .is_some_and(|f| matches!(f, OversizedFrame::Accept)); + if is_accept { + if let Some(token) = token { + let waiter = { + let mut waiters = match accept_waiters.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + waiters.remove(token) + }; + if let Some(waiter) = waiter { + let _ = waiter.send(()); + } + } + return; + } + + // OD-2: touch the pending entry so the sweep does not evict the + // request mid-transfer (chunks do not otherwise refresh it). + if let Some(ref correlated_id) = e_tag { + pending.touch(correlated_id.as_str()).await; + } + + // Feed the frame to the reassembler (process_frame is sync; the + // guard is dropped before any await). + let outcome = { + let mut receiver = match oversized_receiver.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + receiver.process_frame(¬if) + }; + match outcome { + // start/chunk consumed — do NOT touch `pending` or validate. + Ok(None) => return, + // end frame: deliver the reassembled (already-validated, may + // exceed 1 MB) message and clear the pending entry. + Ok(Some(message)) => { + if let Some(ref correlated_id) = e_tag { + pending.remove(correlated_id.as_str()).await; + } + let _ = tx.send(message); + return; + } + // Failure: clean up locally, let the request time out. + Err(error) => { + tracing::warn!( + target: LOG_TARGET, + error = %error, + "Inbound oversized transfer failed" + ); + return; + } + } + } + } + // Correlate response if let Some(ref correlated_id) = e_tag { let is_pending = pending.contains(correlated_id.as_str()).await; @@ -1198,6 +1613,8 @@ mod tests { server_initialize_event: Arc::new(Mutex::new(None)), server_supports_ephemeral: Arc::new(AtomicBool::new(false)), seen_gift_wrap_ids: Arc::new(Mutex::new(LruCache::new(NonZeroUsize::new(10).unwrap()))), + oversized_receiver: Arc::new(Mutex::new(OversizedTransferReceiver::new())), + accept_waiters: Arc::new(Mutex::new(HashMap::new())), message_tx: Some(tokio::sync::mpsc::unbounded_channel().0), message_rx: None, cancellation_token: CancellationToken::new(), @@ -1296,13 +1713,31 @@ mod tests { // ── CEP-35 client capability learning ─────────────────────── fn make_event_with_tags(tag_parts: &[&[&str]]) -> Event { + make_event_with_content_and_tags("{}", tag_parts) + } + + fn make_event_with_content_and_tags(content: &str, tag_parts: &[&[&str]]) -> Event { let keys = Keys::generate(); let tags: Vec = tag_parts.iter().map(|p| make_tag(p)).collect(); - let builder = EventBuilder::new(Kind::Custom(CTXVM_MESSAGES_KIND), "{}").tags(tags); + let builder = EventBuilder::new(Kind::Custom(CTXVM_MESSAGES_KIND), content).tags(tags); let unsigned = builder.build(keys.public_key()); unsigned.sign_with_keys(&keys).unwrap() } + /// A JSON-RPC response carrying a full `InitializeResult` (has `protocolVersion`). + fn initialize_result_content() -> String { + serde_json::json!({ + "jsonrpc": "2.0", + "id": 1, + "result": { + "protocolVersion": "2025-06-18", + "capabilities": {}, + "serverInfo": { "name": "UpgradedServer", "version": "1.0.0" } + } + }) + .to_string() + } + #[test] fn client_learn_server_discovery_sets_baseline() { let caps = Mutex::new(PeerCapabilities::default()); @@ -1357,4 +1792,36 @@ mod tests { "baseline must not be replaced" ); } + + #[test] + fn client_baseline_upgraded_to_initialize_result() { + let caps = Mutex::new(PeerCapabilities::default()); + let init = Mutex::new(None); + + // First discovery tags arrive on a non-initialize event (e.g. a notification). + let baseline = make_event_with_tags(&[&["support_encryption"]]); + NostrClientTransport::learn_server_discovery(&caps, &init, &baseline); + assert_eq!(init.lock().unwrap().as_ref().unwrap().id, baseline.id); + + // A later event carries a full InitializeResult → baseline is upgraded. + let init_event = make_event_with_content_and_tags( + &initialize_result_content(), + &[&["support_encryption"]], + ); + NostrClientTransport::learn_server_discovery(&caps, &init, &init_event); + assert_eq!( + init.lock().unwrap().as_ref().unwrap().id, + init_event.id, + "baseline must upgrade to the initialize-result event" + ); + + // A still-later non-initialize event must NOT downgrade the baseline. + let later = make_event_with_tags(&[&["support_encryption_ephemeral"]]); + NostrClientTransport::learn_server_discovery(&caps, &init, &later); + assert_eq!( + init.lock().unwrap().as_ref().unwrap().id, + init_event.id, + "baseline must not downgrade away from the initialize result" + ); + } } diff --git a/src/transport/oversized_transfer/mod.rs b/src/transport/oversized_transfer/mod.rs index 88a665b..f517725 100644 --- a/src/transport/oversized_transfer/mod.rs +++ b/src/transport/oversized_transfer/mod.rs @@ -47,6 +47,8 @@ pub mod constants; pub mod errors; pub mod frame; pub mod receiver; +pub mod sender; +pub mod sizing; pub use codec::{ build_oversized_frames, sha256_digest, split_string_by_byte_size, utf8_byte_len, @@ -56,6 +58,8 @@ pub use constants::*; pub use errors::OversizedTransferError; pub use frame::{CompletionMode, OversizedFrame}; pub use receiver::{OversizedTransferReceiver, TransferPolicy}; +pub use sender::send_oversized_transfer; +pub use sizing::{measure_published_event_size, resolve_safe_chunk_size}; /// CEP-22 oversized-transfer configuration shared by both transports. /// @@ -180,3 +184,18 @@ impl OversizedTransferConfig { self } } + +impl From<&OversizedTransferConfig> for TransferPolicy { + /// Project the receiver-relevant knobs of an [`OversizedTransferConfig`] into + /// a [`TransferPolicy`] (D6 → receiver admission policy). + fn from(config: &OversizedTransferConfig) -> Self { + TransferPolicy { + max_transfer_bytes: config.max_transfer_bytes, + max_transfer_chunks: config.max_transfer_chunks, + max_concurrent_transfers: config.max_concurrent_transfers, + max_out_of_order_window: config.max_out_of_order_window, + max_out_of_order_chunks: config.max_out_of_order_chunks, + transfer_timeout_ms: config.transfer_timeout_ms, + } + } +} diff --git a/src/transport/oversized_transfer/sender.rs b/src/transport/oversized_transfer/sender.rs new file mode 100644 index 0000000..e3dbb36 --- /dev/null +++ b/src/transport/oversized_transfer/sender.rs @@ -0,0 +1,241 @@ +//! Transport-agnostic async driver for sending an oversized transfer. +//! +//! Given the ordered frames produced by [`build_oversized_frames`](super::codec::build_oversized_frames), +//! this sequences `start → [await accept] → chunks → end`, publishing each frame +//! through a caller-supplied closure, and returns the **end-frame `EventId`** so +//! the transport can correlate the eventual response. +//! +//! The driver carries no transport itself: the client publishes via +//! `prepare_mcp_message` + `publish_event` (registering a pending entry between +//! the two), the server via `base.send_mcp_message`. Those signatures differ, so +//! the publish step is injected as a closure and this module stays transport-free +//! (D11 / OD-5: there is no active `abort` frame in v1 — on a missed `accept` the +//! sender fails and cleans up locally, letting the peer's own timeout fire). + +use std::future::Future; +use std::time::Duration; + +use nostr_sdk::prelude::EventId; +use tokio::sync::oneshot; + +use crate::core::types::JsonRpcNotification; + +use super::codec::BuiltOversizedFrames; +use super::errors::OversizedTransferError; + +/// Extract the outer `progressToken` from a frame's `params`, used to label a +/// locally-raised [`OversizedTransferError::Abort`]. +fn progress_token_of(frame: &JsonRpcNotification) -> String { + frame + .params + .as_ref() + .and_then(|params| params.get("progressToken")) + .and_then(|value| value.as_str()) + .unwrap_or_default() + .to_string() +} + +/// Publish an oversized transfer in canonical frame order, returning the +/// `EventId` of the **end** frame (the id the peer correlates its response to). +/// +/// `publish` is invoked once per frame, in order, and must return the published +/// event's inner `EventId`. When `needs_accept` is set the driver waits up to +/// `accept_timeout` for the receiver's `accept` to fire `await_accept` before +/// sending any chunk; on timeout (or a dropped waiter) it returns +/// [`OversizedTransferError::Abort`] without emitting an `abort` frame. +/// +/// `await_accept` is `Some` iff `needs_accept` is `true`. +pub async fn send_oversized_transfer( + frames: BuiltOversizedFrames, + needs_accept: bool, + await_accept: Option>, + accept_timeout: Duration, + mut publish: P, +) -> crate::Result +where + P: FnMut(JsonRpcNotification) -> Fut, + Fut: Future>, +{ + // The token is only needed to label a potential abort; capture it before the + // start frame is moved into `publish`. + let token = progress_token_of(&frames.start); + + // 1. Publish `start`. Its id is not used for correlation — the end id is. + publish(frames.start).await?; + + // 2. If a handshake is required, block until the receiver's `accept` arrives. + if needs_accept { + let outcome = match await_accept { + Some(rx) => tokio::time::timeout(accept_timeout, rx).await, + None => { + // Defensive: `needs_accept` implies a waiter was provided. + return Err(OversizedTransferError::abort( + token, + Some("no accept waiter registered".to_string()), + ) + .into()); + } + }; + + // `Err(_)` → timed out; `Ok(Err(_))` → waiter dropped. Either way we abort + // locally and let the peer's own timeout fire (no active abort frame). + if matches!(outcome, Err(_) | Ok(Err(_))) { + return Err(OversizedTransferError::abort( + token, + Some("timed out waiting for accept frame".to_string()), + ) + .into()); + } + } + + // 3. Publish each chunk sequentially in canonical (`progress`) order. + for chunk in frames.chunks { + publish(chunk).await?; + } + + // 4. Publish `end`; its id correlates the eventual response. + let end_id = publish(frames.end).await?; + Ok(end_id) +} + +#[cfg(test)] +mod tests { + use super::*; + use std::cell::RefCell; + use std::rc::Rc; + + use crate::transport::oversized_transfer::codec::{ + build_oversized_frames, OversizedSenderOptions, + }; + + /// `frameType` discriminator of a published frame. + fn frame_type(notification: &JsonRpcNotification) -> String { + notification.params.as_ref().unwrap()["cvm"]["frameType"] + .as_str() + .unwrap() + .to_string() + } + + /// Deterministic [`EventId`] for the n-th published frame (1-based). + fn nth_event_id(n: usize) -> EventId { + EventId::from_hex(&format!("{n:064x}")).unwrap() + } + + /// Build frames for a payload large enough to span several chunks. + fn sample_frames(token: &str, needs_accept: bool) -> BuiltOversizedFrames { + let payload = "x".repeat(50); + let options = OversizedSenderOptions::new(token) + .with_chunk_size(8) + .with_accept_handshake(needs_accept); + build_oversized_frames(&payload, &options).unwrap() + } + + /// An in-memory publish closure: records each frame and hands back a + /// deterministic id keyed on publish order (matching [`nth_event_id`]). + fn recording_publisher( + log: Rc>>, + ) -> impl FnMut(JsonRpcNotification) -> std::pin::Pin>>> + { + move |frame: JsonRpcNotification| { + let log = log.clone(); + Box::pin(async move { + log.borrow_mut().push(frame); + let n = log.borrow().len(); + Ok(nth_event_id(n)) + }) + } + } + + #[tokio::test] + async fn publishes_frames_in_canonical_order_and_returns_end_id() { + let frames = sample_frames("tok", false); + let expected_count = frames.frame_count(); + + let log = Rc::new(RefCell::new(Vec::new())); + let publish = recording_publisher(log.clone()); + + let end_id = send_oversized_transfer(frames, false, None, Duration::from_secs(1), publish) + .await + .unwrap(); + + let frames_log = log.borrow(); + assert_eq!(frames_log.len(), expected_count); + assert!(expected_count > 2, "payload should span multiple chunks"); + + // start → chunks… → end + assert_eq!(frame_type(&frames_log[0]), "start"); + assert_eq!(frame_type(frames_log.last().unwrap()), "end"); + for mid in &frames_log[1..frames_log.len() - 1] { + assert_eq!(frame_type(mid), "chunk"); + } + + // Returned id is the end frame's id (the last one published). + assert_eq!(end_id, nth_event_id(expected_count)); + } + + #[tokio::test] + async fn accept_is_awaited_and_satisfied_when_needed() { + let frames = sample_frames("tok", true); + let expected_count = frames.frame_count(); + + let log = Rc::new(RefCell::new(Vec::new())); + let publish = recording_publisher(log.clone()); + + // Pre-arm the oneshot so the awaited accept resolves immediately. + let (tx, rx) = oneshot::channel(); + tx.send(()).unwrap(); + + let end_id = + send_oversized_transfer(frames, true, Some(rx), Duration::from_secs(1), publish) + .await + .unwrap(); + + let frames_log = log.borrow(); + assert_eq!(frames_log.len(), expected_count); + assert_eq!(frame_type(&frames_log[0]), "start"); + assert_eq!(frame_type(frames_log.last().unwrap()), "end"); + assert_eq!(end_id, nth_event_id(expected_count)); + } + + #[tokio::test] + async fn accept_is_not_awaited_when_not_needed() { + let frames = sample_frames("tok", false); + + let log = Rc::new(RefCell::new(Vec::new())); + let publish = recording_publisher(log.clone()); + + // A waiter is supplied but never fired; because `needs_accept` is false + // the driver must ignore it and complete without abort. + let (_tx, rx) = oneshot::channel(); + let result = + send_oversized_transfer(frames, false, Some(rx), Duration::from_millis(5), publish) + .await; + + assert!(result.is_ok()); + } + + #[tokio::test] + async fn missed_accept_returns_abort() { + let frames = sample_frames("tok", true); + + let log = Rc::new(RefCell::new(Vec::new())); + let publish = recording_publisher(log.clone()); + + // Keep `_tx` alive so the waiter is not "closed" — this exercises the + // timeout (elapsed) path specifically. + let (_tx, rx) = oneshot::channel(); + let result = + send_oversized_transfer(frames, true, Some(rx), Duration::from_millis(20), publish) + .await; + + match result { + Err(crate::Error::OversizedTransfer(OversizedTransferError::Abort { + token, .. + })) => assert_eq!(token, "tok"), + other => panic!("expected abort error, got {other:?}"), + } + + // Only the start frame was published before the failed handshake. + assert_eq!(log.borrow().len(), 1); + } +} diff --git a/src/transport/oversized_transfer/sizing.rs b/src/transport/oversized_transfer/sizing.rs new file mode 100644 index 0000000..975b5c3 --- /dev/null +++ b/src/transport/oversized_transfer/sizing.rs @@ -0,0 +1,278 @@ +//! CEP-22 published-event sizing helpers. +//! +//! Ports the TypeScript `measurePublishedMcpMessageSize` and +//! `resolveSafeOversizedChunkSize` from `base-nostr-transport.ts`. +//! +//! Each oversized frame is published as an independently signed (and, when +//! encrypted, gift-wrapped) Nostr event. The *published* event is materially +//! larger than its raw chunk payload: the JSON-RPC `notifications/progress` +//! envelope, the 64-byte id / 64-byte pubkey / 128-byte signature, the tags, and +//! — when encrypted — the NIP-44 + base64 gift-wrap expansion all add overhead, +//! and the chunk `data` string is escaped at every JSON layer. Picking a fixed +//! chunk size therefore risks frames much larger than intended. These helpers +//! measure the *real* published size so the sender can choose a per-chunk budget +//! that keeps every frame within a byte ceiling. + +use nostr_sdk::prelude::{Kind, PublicKey, Tag}; + +use crate::core::constants::CTXVM_MESSAGES_KIND; +use crate::core::error::Result; +use crate::core::types::{JsonRpcMessage, JsonRpcNotification}; +use crate::transport::base::BaseTransport; + +use super::frame::OversizedFrame; + +/// Probe `progressToken` used when sizing chunk frames. A UUID-length placeholder +/// so the measured envelope is representative of (and slightly conservative for) +/// real progress tokens, which the sizing signature deliberately does not thread +/// through (cf. TS, which passes the real token — a negligible byte difference). +const SIZING_PROBE_TOKEN: &str = "00000000-0000-0000-0000-000000000000"; + +/// Probe `progress` slot used when sizing chunk frames (the no-handshake +/// first-chunk slot). The slot only affects size by a digit or two. +const SIZING_PROBE_PROGRESS: u64 = 2; + +/// Build the final outbound Nostr event for `frame` — signing, and gift-wrapping +/// when `is_encrypted` — and return its serialized UTF-8 byte length. +/// +/// Mirrors TS `measurePublishedMcpMessageSize`: it reuses +/// [`BaseTransport::prepare_mcp_message`] (the rs-sdk equivalent of TS +/// `buildPublishedMcpEvent`) to produce the exact event that would hit the relay, +/// then measures `serde_json::to_string(event).len()` (Rust strings are UTF-8, so +/// `.len()` is the byte length). The caller passes the continuation-frame `tags` +/// so the measurement reflects exactly what the real chunk frames carry — the +/// client's recipient `p`-tag, or the server's response `p`+`e` tags. +pub async fn measure_published_event_size( + frame: &JsonRpcNotification, + base: &BaseTransport, + recipient: &PublicKey, + tags: &[Tag], + is_encrypted: bool, + gift_wrap_kind: Kind, +) -> Result { + let message = JsonRpcMessage::Notification(frame.clone()); + let (_event_id, published) = base + .prepare_mcp_message( + &message, + recipient, + CTXVM_MESSAGES_KIND, + tags.to_vec(), + Some(is_encrypted), + Some(gift_wrap_kind.as_u16()), + ) + .await?; + + Ok(serde_json::to_string(&published)?.len()) +} + +/// Binary-search the largest per-chunk payload size in `[1, desired]` whose +/// published frame event stays within `max_event_bytes`. +/// +/// Mirrors TS `resolveSafeOversizedChunkSize`: the probe chunk's payload is a run +/// of backslash bytes — the JSON worst case, since a backslash escapes to two +/// bytes at *every* serialization layer — so the chosen budget stays safe for +/// arbitrary real payloads. `tags` are the continuation-frame tags (passed +/// straight to [`measure_published_event_size`]). Always returns at least 1 +/// (matching TS, which never returns 0, even when a single-byte payload already +/// overflows the ceiling). +pub async fn resolve_safe_chunk_size( + desired: usize, + base: &BaseTransport, + recipient: &PublicKey, + tags: &[Tag], + is_encrypted: bool, + gift_wrap_kind: Kind, + max_event_bytes: usize, +) -> Result { + let mut low: usize = 1; + let mut high: usize = desired.max(1); + let mut best: usize = 1; + + while low <= high { + let mid = low + (high - low) / 2; + let probe = OversizedFrame::Chunk { + data: "\\".repeat(mid), + } + .into_progress_notification(SIZING_PROBE_TOKEN, SIZING_PROBE_PROGRESS, None)?; + + // A frame we cannot even build at this size is, by definition, too big and + // must be searched lower. This is not hypothetical: in the encrypted path a + // large probe's JSON double-escapes past NIP-44's ~64 KiB plaintext ceiling + // and `gift_wrap` errors — without this, the very first probe (mid = + // desired/2 ≈ 24 000 for the default config) would abort the whole resolve. + let fits = match measure_published_event_size( + &probe, + base, + recipient, + tags, + is_encrypted, + gift_wrap_kind, + ) + .await + { + Ok(size) => size <= max_event_bytes, + Err(_) => false, + }; + + if fits { + best = mid; + low = mid + 1; + } else { + // `mid >= 1` always (low starts at 1), so `mid - 1` cannot underflow. + high = mid - 1; + } + } + + Ok(best) +} + +#[cfg(test)] +mod tests { + use super::*; + use std::sync::Arc; + + use nostr_sdk::prelude::Keys; + + use crate::core::types::EncryptionMode; + use crate::relay::mock::MockRelayPool; + use crate::relay::RelayPoolTrait; + + fn test_base(mode: EncryptionMode) -> BaseTransport { + BaseTransport { + relay_pool: Arc::new(MockRelayPool::new()) as Arc, + encryption_mode: mode, + is_connected: true, + } + } + + fn chunk_frame(data_len: usize) -> JsonRpcNotification { + OversizedFrame::Chunk { + data: "x".repeat(data_len), + } + .into_progress_notification("tok", 2, None) + .unwrap() + } + + #[tokio::test] + async fn measure_grows_with_data_length() { + let base = test_base(EncryptionMode::Disabled); + let recipient = Keys::generate().public_key(); + let tags = BaseTransport::create_recipient_tags(&recipient); + + let small = measure_published_event_size( + &chunk_frame(10), + &base, + &recipient, + &tags, + false, + Kind::Custom(crate::core::constants::GIFT_WRAP_KIND), + ) + .await + .unwrap(); + let large = measure_published_event_size( + &chunk_frame(1000), + &base, + &recipient, + &tags, + false, + Kind::Custom(crate::core::constants::GIFT_WRAP_KIND), + ) + .await + .unwrap(); + + assert!(large > small, "larger data must yield a larger event"); + assert!(small > 0); + } + + #[tokio::test] + async fn resolve_never_exceeds_desired_and_is_at_least_one() { + let base = test_base(EncryptionMode::Disabled); + let recipient = Keys::generate().public_key(); + let tags = BaseTransport::create_recipient_tags(&recipient); + + // A tiny ceiling that even a 1-byte frame overflows still yields 1. + let clamped = resolve_safe_chunk_size( + 5000, + &base, + &recipient, + &tags, + false, + Kind::Custom(crate::core::constants::GIFT_WRAP_KIND), + 10, + ) + .await + .unwrap(); + assert_eq!(clamped, 1, "an unsatisfiable ceiling must still return 1"); + + // The result is capped at `desired`. + let capped = resolve_safe_chunk_size( + 8, + &base, + &recipient, + &tags, + false, + Kind::Custom(crate::core::constants::GIFT_WRAP_KIND), + 10_000_000, + ) + .await + .unwrap(); + assert_eq!(capped, 8, "a generous ceiling must cap at `desired`"); + } + + #[tokio::test] + async fn resolve_is_monotonic_in_budget() { + let base = test_base(EncryptionMode::Disabled); + let recipient = Keys::generate().public_key(); + let tags = BaseTransport::create_recipient_tags(&recipient); + let gw = Kind::Custom(crate::core::constants::GIFT_WRAP_KIND); + + let small_budget = + resolve_safe_chunk_size(48_000, &base, &recipient, &tags, false, gw, 4_000) + .await + .unwrap(); + let large_budget = + resolve_safe_chunk_size(48_000, &base, &recipient, &tags, false, gw, 16_000) + .await + .unwrap(); + + assert!( + large_budget >= small_budget, + "a larger byte ceiling must allow an equal-or-larger chunk ({large_budget} >= {small_budget})" + ); + } + + #[tokio::test] + async fn encrypted_frames_force_smaller_chunks_than_plaintext() { + let recipient = Keys::generate().public_key(); + let tags = BaseTransport::create_recipient_tags(&recipient); + let gw = Kind::Custom(crate::core::constants::GIFT_WRAP_KIND); + + let plain = resolve_safe_chunk_size( + 48_000, + &test_base(EncryptionMode::Disabled), + &recipient, + &tags, + false, + gw, + 8_000, + ) + .await + .unwrap(); + let encrypted = resolve_safe_chunk_size( + 48_000, + &test_base(EncryptionMode::Required), + &recipient, + &tags, + true, + gw, + 8_000, + ) + .await + .unwrap(); + + assert!( + encrypted < plain, + "gift-wrap expansion must shrink the safe chunk ({encrypted} < {plain})" + ); + } +} diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 6063728..251b79c 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -29,7 +29,10 @@ use crate::encryption; use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; use crate::transport::discovery_tags::learn_peer_capabilities; -use crate::transport::oversized_transfer::OversizedTransferConfig; +use crate::transport::oversized_transfer::{ + build_oversized_frames, resolve_safe_chunk_size, OversizedFrame, OversizedSenderOptions, + OversizedTransferConfig, OversizedTransferReceiver, TransferPolicy, ACCEPT_PROGRESS, +}; const LOG_TARGET: &str = "contextvm_sdk::transport::server"; @@ -46,6 +49,17 @@ fn oversized_support_tags(config: &NostrServerTransportConfig) -> Vec { } } +/// CEP-22: build the empty per-peer reassembly store, bounded to `max_sessions` +/// peers (one [`OversizedTransferReceiver`] per client pubkey, inserted lazily by +/// the inbound event loop). +fn new_oversized_receiver_store( + max_sessions: usize, +) -> Arc>> { + Arc::new(RwLock::new(LruCache::new( + NonZeroUsize::new(max_sessions).unwrap_or(NonZeroUsize::new(1).unwrap()), + ))) +} + /// Configuration for the server transport. #[derive(Debug, Clone)] #[non_exhaustive] @@ -134,6 +148,11 @@ pub struct NostrServerTransport { /// Duplicate outer ids are skipped before decrypt; ids are inserted only after success /// so failed decrypt/verify can be retried on redelivery. seen_gift_wrap_ids: Arc>>, + /// CEP-22: per-peer reassembly engines for inbound oversized transfers, keyed + /// by client pubkey (hex) and bounded to `max_sessions` peers. Each receiver + /// enforces the configured per-peer admission policy. Populated by the inbound + /// event loop; cleared on [`close`](Self::close). + oversized_receiver: Arc>>, /// Channel for incoming MCP messages (consumed by the MCP server). message_tx: Option>, message_rx: Option>, @@ -295,6 +314,7 @@ impl NostrServerTransport { is_connected: false, }, sessions: SessionStore::with_capacity(config.max_sessions), + oversized_receiver: new_oversized_receiver_store(config.max_sessions), config, event_routes: ServerEventRouteStore::new(), request_wrap_kinds: Arc::new(RwLock::new(HashMap::new())), @@ -345,6 +365,7 @@ impl NostrServerTransport { is_connected: false, }, sessions: SessionStore::with_capacity(config.max_sessions), + oversized_receiver: new_oversized_receiver_store(config.max_sessions), config, request_wrap_kinds: Arc::new(RwLock::new(HashMap::new())), event_routes: ServerEventRouteStore::new(), @@ -413,6 +434,8 @@ impl NostrServerTransport { let gift_wrap_mode = self.config.gift_wrap_mode; let is_announced_server = self.config.is_announced_server; let oversized_enabled = self.config.oversized_transfer.enabled; + let oversized_receiver = self.oversized_receiver.clone(); + let transfer_policy: TransferPolicy = (&self.config.oversized_transfer).into(); let common_tags_snapshot = self.announcement_manager.common_tags_snapshot(); let seen_gift_wrap_ids = self.seen_gift_wrap_ids.clone(); let event_loop_token = self.cancellation_token.child_token(); @@ -430,6 +453,8 @@ impl NostrServerTransport { gift_wrap_mode, is_announced_server, oversized_enabled, + oversized_receiver, + transfer_policy, common_tags_snapshot, seen_gift_wrap_ids, event_loop_token, @@ -519,6 +544,7 @@ impl NostrServerTransport { self.base.disconnect().await?; self.sessions.clear().await; self.event_routes.clear().await; + self.oversized_receiver.write().await.clear(); Ok(()) } @@ -556,7 +582,14 @@ impl NostrServerTransport { _ => {} } + // CEP-22: serialize once, *after* id restoration. The threshold check and + // the oversized split must both derive from this exact post-restoration + // string so the client reassembles bytes whose `id` matches the digest. + let serialized = serde_json::to_string(&response)?; + let is_encrypted = session.is_encrypted; + // CEP-22: capture the peer's oversized support while the session lock is held. + let supports_oversized_transfer = session.supports_oversized_transfer; // CEP-35: include discovery tags on first response to this client let discovery_tags = self.take_pending_server_discovery_tags(session); @@ -593,23 +626,105 @@ impl NostrServerTransport { let base_tags = BaseTransport::create_response_tags(&client_pubkey, &event_id_parsed); let tags = BaseTransport::compose_outbound_tags(&base_tags, &discovery_tags, &[]); + let gift_wrap_kind = Self::select_outbound_gift_wrap_kind( + self.config.gift_wrap_mode, + is_encrypted, + mirrored_wrap_kind, + ); - if let Err(error) = self - .base - .send_mcp_message( - &response, + // CEP-22: a response is eligible for oversized fragmentation only when the + // feature is enabled, the peer advertised support, and the request carried a + // progressToken to address the frames with. + let oversized_eligible = self.config.oversized_transfer.enabled + && progress_token.is_some() + && supports_oversized_transfer; + let threshold = self.config.oversized_transfer.threshold; + + // CEP-22: relay size limits apply to the *published* Nostr event, so decide + // on the published byte size, not the raw payload (mirrors TS + // `measurePublishedMcpMessageSize`). The raw serialized length is a cheap + // lower bound: at/above the threshold the response is conclusively oversized + // and we fragment without building a single event — an escape-heavy payload + // could otherwise overflow NIP-44's plaintext limit while measuring. Below + // it, build the single event once, measure it, and reuse it when it fits. + let mut reuse_event: Option = None; + let fragment = if !oversized_eligible { + false + } else if serialized.len() >= threshold { + true + } else { + match self + .base + .prepare_mcp_message( + &response, + &client_pubkey, + CTXVM_MESSAGES_KIND, + tags.clone(), + Some(is_encrypted), + gift_wrap_kind, + ) + .await + { + Ok((_id, publishable)) => { + let published_len = serde_json::to_string(&publishable) + .map(|s| s.len()) + .unwrap_or(usize::MAX); + if published_len > threshold { + true + } else { + reuse_event = Some(publishable); + false + } + } + // Could not build one event (e.g. NIP-44 plaintext overflow from an + // escape-heavy payload) → it cannot be sent as a single event. + Err(error) => { + tracing::debug!( + target: LOG_TARGET, + error = %error, + event_id = %event_id, + "Single-event build failed; sending response as oversized transfer" + ); + true + } + } + }; + + // Both paths converge on the cleanup tail below — neither early-returns on + // success. + let send_result: Result<()> = if fragment { + self.send_oversized_response( + &serialized, + progress_token.as_deref().unwrap_or_default(), &client_pubkey, - CTXVM_MESSAGES_KIND, + &base_tags, tags, - Some(is_encrypted), - Self::select_outbound_gift_wrap_kind( - self.config.gift_wrap_mode, - is_encrypted, - mirrored_wrap_kind, - ), + is_encrypted, + gift_wrap_kind, ) .await - { + } else if let Some(publishable) = reuse_event { + // Reuse the event already built for the size check — no re-encryption. + self.base + .relay_pool + .publish_event(&publishable) + .await + .map(|_| ()) + } else { + self.base + .send_mcp_message( + &response, + &client_pubkey, + CTXVM_MESSAGES_KIND, + tags, + Some(is_encrypted), + gift_wrap_kind, + ) + .await + .map(|_| ()) + }; + + if let Err(error) = send_result { tracing::error!( target: LOG_TARGET, error = %error, @@ -655,6 +770,65 @@ impl NostrServerTransport { Ok(()) } + /// CEP-22: publish a response as an ordered oversized-transfer frame sequence. + /// + /// Splits the post-restoration `serialized` string into `start → chunks… → + /// end` frames (digest and split both derived from that exact string) and + /// publishes each as a `notifications/progress` event to `recipient`. The + /// server never reserves the `accept` slot or waits for a handshake — it only + /// fragments for peers already known to support the feature. One-shot + /// discovery tags ride the `start` frame only (`start_tags`); every later + /// frame carries bare recipient + `e`-tags (`base_tags`). + #[allow(clippy::too_many_arguments)] + async fn send_oversized_response( + &self, + serialized: &str, + progress_token: &str, + recipient: &PublicKey, + base_tags: &[Tag], + start_tags: Vec, + is_encrypted: bool, + gift_wrap_kind: Option, + ) -> Result<()> { + // CEP-22: derive a per-chunk payload budget so every published frame stays + // under the threshold even after the JSON-RPC envelope, signature, and + // (when encrypted) gift-wrap expansion. Mirrors TS `resolveSafeOversizedChunkSize`. + // Continuation (chunk) frames carry the response `p`+`e` tags (`base_tags`), + // so size against those — not the bare recipient tag — or the budget would + // be ~70 bytes optimistic. + let chunk_size = resolve_safe_chunk_size( + self.config.oversized_transfer.chunk_size, + &self.base, + recipient, + base_tags, + is_encrypted, + Kind::Custom(gift_wrap_kind.unwrap_or(GIFT_WRAP_KIND)), + self.config.oversized_transfer.threshold, + ) + .await?; + let options = OversizedSenderOptions::new(progress_token).with_chunk_size(chunk_size); + let frames = build_oversized_frames(serialized, &options)?.into_ordered(); + + // Discovery tags ride the start frame; `take` yields them once, then the + // remaining frames fall back to bare recipient + `e`-tags. + let mut start_tags = Some(start_tags); + for frame in frames { + let tags = start_tags.take().unwrap_or_else(|| base_tags.to_vec()); + let message = JsonRpcMessage::Notification(frame); + self.base + .send_mcp_message( + &message, + recipient, + CTXVM_MESSAGES_KIND, + tags, + Some(is_encrypted), + gift_wrap_kind, + ) + .await?; + } + Ok(()) + } + /// Send a notification to a specific client. pub async fn send_notification( &self, @@ -915,6 +1089,8 @@ impl NostrServerTransport { gift_wrap_mode: GiftWrapMode, is_announced_server: bool, oversized_enabled: bool, + oversized_receiver: Arc>>, + transfer_policy: TransferPolicy, common_tags_snapshot: announcement_manager::CommonTagsSnapshot, seen_gift_wrap_ids: Arc>>, cancel: CancellationToken, @@ -1196,10 +1372,44 @@ impl NostrServerTransport { let discovered = learn_peer_capabilities(&inner_tags); session.supports_encryption |= discovered.supports_encryption; session.supports_ephemeral_encryption |= discovered.supports_ephemeral_encryption; + // CEP-22 (OD-4): snapshot the flag BEFORE the learning gate mutates + // it — the very `start` frame carries the client's support tag, so + // without this snapshot the first transfer would never get an `accept`. + let client_already_supported = session.supports_oversized_transfer; // CEP-22: only learn oversized support if it is enabled on this server. session.supports_oversized_transfer |= oversized_enabled && discovered.supports_oversized_transfer; + // CEP-22: intercept oversized-transfer frames before request + // correlation/dispatch. A disabled server forwards raw progress + // notifications as before (OD-6). + if oversized_enabled { + if let JsonRpcMessage::Notification(ref n) = mcp_msg { + if OversizedTransferReceiver::is_oversized_frame(n) { + drop(sessions_w); + Self::handle_oversized_frame( + n, + &sender_pubkey, + &event_id, + is_encrypted, + is_gift_wrap, + outer_kind, + client_already_supported, + &oversized_receiver, + transfer_policy, + &relay_pool, + encryption_mode, + gift_wrap_mode, + &event_routes, + &request_wrap_kinds, + &tx, + ) + .await; + continue; + } + } + } + // Track request for correlation if let JsonRpcMessage::Request(ref req) = mcp_msg { let original_id = req.id.clone(); @@ -1270,6 +1480,198 @@ impl NostrServerTransport { } } + /// CEP-22 server inbound: process one oversized-transfer frame. + /// + /// Emits an `accept` on the opening frame when the client's support is not yet + /// known (OD-4), feeds the frame to this peer's reassembler, and — on the + /// `end` frame — registers a response route and dispatches the reassembled + /// request as a synthetic [`IncomingRequest`] (keyed by the end frame's real + /// carrying event id, collision-free against the reserved sentinels). + #[allow(clippy::too_many_arguments)] + async fn handle_oversized_frame( + frame: &JsonRpcNotification, + sender_pubkey: &str, + event_id: &str, + is_encrypted: bool, + is_gift_wrap: bool, + outer_kind: u16, + client_already_supported: bool, + oversized_receiver: &Arc>>, + transfer_policy: TransferPolicy, + relay_pool: &Arc, + encryption_mode: EncryptionMode, + gift_wrap_mode: GiftWrapMode, + event_routes: &ServerEventRouteStore, + request_wrap_kinds: &Arc>>>, + tx: &tokio::sync::mpsc::UnboundedSender, + ) { + // The outer progressToken keys the transfer (needed for accept + route). + let token = frame + .params + .as_ref() + .and_then(|p| p.get("progressToken")) + .and_then(|t| t.as_str()) + .map(String::from); + + // 1. Emit `accept` on the opening frame if support is not yet known. + let is_start = frame + .params + .as_ref() + .and_then(|p| p.get("cvm")) + .and_then(OversizedFrame::from_cvm_value) + .is_some_and(|f| matches!(f, OversizedFrame::Start { .. })); + let issued_accept = is_start && !client_already_supported && token.is_some(); + if issued_accept { + if let Some(ref token) = token { + Self::emit_accept_frame( + token, + sender_pubkey, + event_id, + is_encrypted, + is_gift_wrap, + outer_kind, + relay_pool, + encryption_mode, + gift_wrap_mode, + ) + .await; + } + } + + // 2. Feed the frame to this peer's reassembler (process_frame is sync; the + // write guard is held only across the sync call, never an await). When we + // issued an `accept`, the sender reserved progress slot 2 and its chunks + // begin at slot 3 — but we never *receive* an `accept`, so feed a synthetic + // one into our own receiver to align chunk-slot tracking with the handshake + // layout (otherwise the frontier sticks at slot 2 and chunks pile up as + // out-of-order until the gap exceeds the window). + let outcome = { + let mut store = oversized_receiver.write().await; + if !store.contains(sender_pubkey) { + store.put( + sender_pubkey.to_string(), + OversizedTransferReceiver::with_policy(transfer_policy), + ); + } + let receiver = store.get_mut(sender_pubkey).unwrap(); + let outcome = receiver.process_frame(frame); + if issued_accept && matches!(outcome, Ok(None)) { + if let Some(ref token) = token { + if let Ok(accept) = OversizedFrame::Accept.into_progress_notification( + token, + ACCEPT_PROGRESS, + None, + ) { + let _ = receiver.process_frame(&accept); + } + } + } + outcome + }; + + match outcome { + // start/accept/chunk consumed — nothing to dispatch yet. + Ok(None) => {} + // The `end` frame: reassembled request ready to dispatch. + Ok(Some(message)) => { + let original_id = message.id().cloned().unwrap_or(serde_json::Value::Null); + // Mirror the incoming wrap kind for the eventual response (CEP-19). + { + let mut kinds_w = request_wrap_kinds.write().await; + kinds_w.insert( + event_id.to_string(), + if is_gift_wrap { Some(outer_kind) } else { None }, + ); + } + event_routes + .register( + event_id.to_string(), + sender_pubkey.to_string(), + original_id, + token, + ) + .await; + let _ = tx.send(IncomingRequest { + message, + client_pubkey: sender_pubkey.to_string(), + event_id: event_id.to_string(), + is_encrypted, + }); + } + // D11: clean up locally, let the peer's own timeout fire. + Err(error) => { + tracing::warn!( + target: LOG_TARGET, + error = %error, + sender_pubkey = %sender_pubkey, + "Oversized transfer frame rejected; cleaning up locally" + ); + } + } + } + + /// CEP-22: publish a single `accept` frame back to `sender_pubkey`, e-tagged to + /// the `start` frame's carrying event. Best-effort — failures are logged only + /// (the sender falls back to its own accept timeout). + #[allow(clippy::too_many_arguments)] + async fn emit_accept_frame( + token: &str, + sender_pubkey: &str, + start_event_id: &str, + is_encrypted: bool, + is_gift_wrap: bool, + outer_kind: u16, + relay_pool: &Arc, + encryption_mode: EncryptionMode, + gift_wrap_mode: GiftWrapMode, + ) { + let client_pk = match PublicKey::from_hex(sender_pubkey) { + Ok(pk) => pk, + Err(_) => return, + }; + let event_id_parsed = EventId::from_hex(start_event_id).unwrap_or(EventId::all_zeros()); + let accept = + match OversizedFrame::Accept.into_progress_notification(token, ACCEPT_PROGRESS, None) { + Ok(n) => JsonRpcMessage::Notification(n), + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to build oversized-transfer accept frame" + ); + return; + } + }; + let tags = BaseTransport::create_response_tags(&client_pk, &event_id_parsed); + let base = BaseTransport { + relay_pool: Arc::clone(relay_pool), + encryption_mode, + is_connected: true, + }; + if let Err(error) = base + .send_mcp_message( + &accept, + &client_pk, + CTXVM_MESSAGES_KIND, + tags, + Some(is_encrypted), + Self::select_outbound_gift_wrap_kind( + gift_wrap_mode, + is_encrypted, + if is_gift_wrap { Some(outer_kind) } else { None }, + ), + ) + .await + { + tracing::error!( + target: LOG_TARGET, + error = %error, + sender_pubkey = %sender_pubkey, + "Failed to send oversized-transfer accept frame" + ); + } + } + async fn cleanup_sessions( sessions: &SessionStore, event_routes: &ServerEventRouteStore, diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index f6f2946..55fdbea 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -15,13 +15,19 @@ use async_trait::async_trait; use contextvm_sdk::core::constants::tags; use contextvm_sdk::core::constants::{ mcp_protocol_version, CTXVM_MESSAGES_KIND, EPHEMERAL_GIFT_WRAP_KIND, GIFT_WRAP_KIND, - PROMPTS_LIST_KIND, RESOURCES_LIST_KIND, RESOURCETEMPLATES_LIST_KIND, SERVER_ANNOUNCEMENT_KIND, - TOOLS_LIST_KIND, + MAX_MESSAGE_SIZE, PROMPTS_LIST_KIND, RESOURCES_LIST_KIND, RESOURCETEMPLATES_LIST_KIND, + SERVER_ANNOUNCEMENT_KIND, TOOLS_LIST_KIND, }; use contextvm_sdk::core::types::{EncryptionMode, GiftWrapMode}; use contextvm_sdk::relay::mock::MockRelayPool; +use contextvm_sdk::transport::base::BaseTransport; use contextvm_sdk::transport::client::{NostrClientTransport, NostrClientTransportConfig}; -use contextvm_sdk::transport::server::{NostrServerTransport, NostrServerTransportConfig}; +use contextvm_sdk::transport::oversized_transfer::{ + build_oversized_frames, OversizedFrame, OversizedSenderOptions, OversizedTransferConfig, +}; +use contextvm_sdk::transport::server::{ + IncomingRequest, NostrServerTransport, NostrServerTransportConfig, +}; use contextvm_sdk::{ CapabilityExclusion, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, RelayPoolTrait, ServerInfo, @@ -2788,12 +2794,15 @@ async fn server_gate_blocks_oversized_when_disabled() { async fn server_gate_blocks_oversized_when_client_does_not_advertise() { let (client_pool, server_pool) = MockRelayPool::create_pair(); let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + // Server is oversized-capable with a low threshold; the only thing that should + // keep the (large) response un-fragmented is the client not advertising support. let mut server = NostrServerTransport::with_relay_pool( NostrServerTransportConfig::default() .with_encryption_mode(EncryptionMode::Disabled) - .with_oversized_enabled(true), - as_pool(server_pool), + .with_oversized_transfer(OversizedTransferConfig::enabled().with_threshold(2000)), + Arc::clone(&server_pool) as Arc, ) .await .unwrap(); @@ -2814,12 +2823,14 @@ async fn server_gate_blocks_oversized_when_client_does_not_advertise() { client.start().await.unwrap(); let_event_loops_start().await; + // Request carries a progressToken so the server's only remaining fragmentation + // blocker is the missing client capability (not a missing token). client .send(&JsonRpcMessage::Request(JsonRpcRequest { jsonrpc: "2.0".to_string(), id: serde_json::json!(1), - method: "initialize".to_string(), - params: None, + method: "tools/call".to_string(), + params: Some(serde_json::json!({ "_meta": { "progressToken": "tok-block" } })), })) .await .unwrap(); @@ -2837,6 +2848,30 @@ async fn server_gate_blocks_oversized_when_client_does_not_advertise() { !snap.supports_oversized_transfer, "server must not learn oversized support the client never advertised" ); + + // Server replies with a payload well over the threshold. Because the client + // never advertised support, the gate must block fragmentation: the response is + // a single event, not start/chunk/end frames. + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + result: serde_json::json!({ "blob": "Z".repeat(8000) }), + }); + server + .send_response(&incoming.event_id, response) + .await + .expect("server send response"); + + let server_response_frames = server_pool + .stored_events() + .await + .iter() + .filter(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND) && e.pubkey == server_pubkey) + .count(); + assert_eq!( + server_response_frames, 1, + "gate off (client did not advertise) must send the response as exactly one event" + ); } #[tokio::test(flavor = "multi_thread", worker_threads = 2)] @@ -3614,3 +3649,819 @@ async fn server_close_stops_event_loop() { "after close(), message receiver must yield None (channel closed)" ); } + +// ── CEP-22 PR 3 (M3): oversized transfer end-to-end wiring ─────────────────── + +/// C→S: a request whose serialized size exceeds the threshold is fragmented into +/// multiple kind-25910 frames and reassembled into exactly one IncomingRequest. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_request_roundtrip_client_to_server() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let oversized = OversizedTransferConfig::enabled() + .with_threshold(6000) + .with_chunk_size(6000); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized.clone()), + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized), + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server.take_message_receiver().expect("server rx"); + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // A request carrying a progressToken and a payload well over the threshold. + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("big-1"), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ + "_meta": { "progressToken": "tok-req" }, + "blob": "A".repeat(10000), + })), + }); + client.send(&request).await.expect("send oversized request"); + + // The wire must carry more than one kind-25910 frame (start + chunks + end). + let frame_count = server_pool + .stored_events() + .await + .iter() + .filter(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND)) + .count(); + assert!( + frame_count > 1, + "oversized request must publish multiple frames, got {frame_count}" + ); + + // Exactly one reassembled request arrives at the server. + let incoming = tokio::time::timeout(Duration::from_millis(1000), server_rx.recv()) + .await + .expect("timeout waiting for reassembled request") + .expect("server channel closed"); + assert_eq!(incoming.message.method(), Some("tools/call")); + assert_eq!(incoming.message.id(), Some(&serde_json::json!("big-1"))); + + // No second message should surface. + let second = tokio::time::timeout(Duration::from_millis(100), server_rx.recv()).await; + assert!(second.is_err(), "only one reassembled request expected"); +} + +/// S→C: a large response is fragmented by the server and reassembled by the +/// client into a single response delivered on its receiver. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_response_roundtrip_server_to_client() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let oversized = OversizedTransferConfig::enabled() + .with_threshold(6000) + .with_chunk_size(6000); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized.clone()), + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized), + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server.take_message_receiver().expect("server rx"); + let mut client_rx = client.take_message_receiver().expect("client rx"); + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Small request (single event) but carrying a progressToken so the server may + // fragment its response. + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("rsp-1"), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ "_meta": { "progressToken": "tok-rsp" } })), + }); + client.send(&request).await.expect("send request"); + + let incoming = tokio::time::timeout(Duration::from_millis(1000), server_rx.recv()) + .await + .expect("timeout waiting for request") + .expect("server channel closed"); + + // Server replies with a payload well over the threshold. + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("rsp-1"), + result: serde_json::json!({ "blob": "B".repeat(10000) }), + }); + server + .send_response(&incoming.event_id, response) + .await + .expect("server send oversized response"); + + // The client reassembles and delivers the full response. + let client_msg = tokio::time::timeout(Duration::from_millis(1000), client_rx.recv()) + .await + .expect("timeout waiting for reassembled response") + .expect("client channel closed"); + assert!(client_msg.is_response()); + assert_eq!(client_msg.id(), Some(&serde_json::json!("rsp-1"))); + if let JsonRpcMessage::Response(r) = client_msg { + assert_eq!(r.result["blob"], serde_json::json!("B".repeat(10000))); + } else { + panic!("expected a response"); + } + + // Test gap 6: the start frame of the oversized response carried the server's + // discovery tags, so the client must have learned the server supports oversized + // transfer by the time the reassembled response is delivered. + assert!( + client + .discovered_server_capabilities() + .supports_oversized_transfer, + "client must learn server oversized support from the first oversized response" + ); +} + +// ── CEP-22 PR 3 (M4): remaining §7 oversized-transfer tests ────────────────── + +/// Start an oversized-enabled server over `server_pool`, returning the live +/// transport (keep alive) and its request receiver. +async fn start_oversized_server( + server_pool: Arc, + encryption_mode: EncryptionMode, + oversized: OversizedTransferConfig, +) -> ( + NostrServerTransport, + tokio::sync::mpsc::UnboundedReceiver, +) { + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(encryption_mode) + .with_oversized_transfer(oversized), + server_pool as Arc, + ) + .await + .expect("create server transport"); + let rx = server.take_message_receiver().expect("server rx"); + server.start().await.expect("server start"); + (server, rx) +} + +/// A plaintext `BaseTransport` over `client_pool` used to inject raw frames +/// (grey-box: bypasses `NostrClientTransport::send`). +fn greybox_client_base(client_pool: MockRelayPool) -> BaseTransport { + BaseTransport { + relay_pool: as_pool(client_pool), + encryption_mode: EncryptionMode::Disabled, + is_connected: true, + } +} + +/// Publish one frame as a plaintext kind-25910 event tagged to `server_pubkey`. +async fn publish_plain_frame( + base: &BaseTransport, + server_pubkey: &PublicKey, + tags: &[Tag], + frame: JsonRpcNotification, +) { + let message = JsonRpcMessage::Notification(frame); + base.send_mcp_message( + &message, + server_pubkey, + CTXVM_MESSAGES_KIND, + tags.to_vec(), + Some(false), + None, + ) + .await + .expect("publish frame"); +} + +/// A request whose serialized form carries `progressToken` and a payload of +/// `blob_len` bytes (used to force fragmentation). +fn oversized_request(id: &str, token: &str, blob_len: usize) -> JsonRpcMessage { + JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(id), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ + "_meta": { "progressToken": token }, + "blob": "Q".repeat(blob_len), + })), + }) +} + +/// Out-of-order delivery: chunks published in a permuted order (within the +/// out-of-order window) still reassemble into the original request. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_out_of_order_delivery_reassembles() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let oversized = OversizedTransferConfig::enabled() + .with_threshold(64) + .with_chunk_size(32); + let (_server, mut server_rx) = start_oversized_server( + Arc::clone(&server_pool), + EncryptionMode::Disabled, + oversized, + ) + .await; + let_event_loops_start().await; + + let base = greybox_client_base(client_pool); + let tags = BaseTransport::create_recipient_tags(&server_pubkey); + + let request = oversized_request("ooo-1", "tok-ooo", 300); + let serialized = serde_json::to_string(&request).unwrap(); + let opts = OversizedSenderOptions::new("tok-ooo") + .with_chunk_size(32) + .with_accept_handshake(true); + let frames = build_oversized_frames(&serialized, &opts).unwrap(); + let start = frames.start; + let mut chunks = frames.chunks; + let end = frames.end; + assert!( + chunks.len() > 2, + "need several chunks to permute meaningfully" + ); + + // start first; then the base chunk (so the reserved-accept-slot guard is + // satisfied); then the remaining chunks reversed; then end. + publish_plain_frame(&base, &server_pubkey, &tags, start).await; + let base_chunk = chunks.remove(0); + publish_plain_frame(&base, &server_pubkey, &tags, base_chunk).await; + for chunk in chunks.into_iter().rev() { + publish_plain_frame(&base, &server_pubkey, &tags, chunk).await; + } + publish_plain_frame(&base, &server_pubkey, &tags, end).await; + + let incoming = tokio::time::timeout(Duration::from_millis(1000), server_rx.recv()) + .await + .expect("timeout waiting for reassembled request") + .expect("server channel closed"); + assert_eq!(incoming.message.method(), Some("tools/call")); + assert_eq!(incoming.message.id(), Some(&serde_json::json!("ooo-1"))); +} + +/// Digest mismatch: corrupting one chunk's `cvm.data` fails reassembly, and no +/// partial message is ever surfaced (recv times out). +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_digest_mismatch_surfaces_nothing() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let oversized = OversizedTransferConfig::enabled() + .with_threshold(64) + .with_chunk_size(32); + let (_server, mut server_rx) = start_oversized_server( + Arc::clone(&server_pool), + EncryptionMode::Disabled, + oversized, + ) + .await; + let_event_loops_start().await; + + let base = greybox_client_base(client_pool); + let tags = BaseTransport::create_recipient_tags(&server_pubkey); + + let request = oversized_request("dig-1", "tok-dig", 300); + let serialized = serde_json::to_string(&request).unwrap(); + let opts = OversizedSenderOptions::new("tok-dig") + .with_chunk_size(32) + .with_accept_handshake(true); + let frames = build_oversized_frames(&serialized, &opts).unwrap(); + let start = frames.start; + let mut chunks = frames.chunks; + let end = frames.end; + + // Corrupt a middle chunk's payload so the reassembled bytes/digest mismatch. + let mid = chunks.len() / 2; + if let Some(params) = chunks[mid].params.as_mut() { + params["cvm"]["data"] = serde_json::json!("corrupted-bytes-not-original"); + } + + publish_plain_frame(&base, &server_pubkey, &tags, start).await; + for chunk in chunks { + publish_plain_frame(&base, &server_pubkey, &tags, chunk).await; + } + publish_plain_frame(&base, &server_pubkey, &tags, end).await; + + let result = tokio::time::timeout(Duration::from_millis(400), server_rx.recv()).await; + assert!( + result.is_err(), + "digest mismatch must not surface any (partial) message" + ); +} + +/// Abort: a `start` followed by an `abort` frame terminates the transfer; no +/// message surfaces. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_abort_surfaces_nothing() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let oversized = OversizedTransferConfig::enabled() + .with_threshold(64) + .with_chunk_size(32); + let (_server, mut server_rx) = start_oversized_server( + Arc::clone(&server_pool), + EncryptionMode::Disabled, + oversized, + ) + .await; + let_event_loops_start().await; + + let base = greybox_client_base(client_pool); + let tags = BaseTransport::create_recipient_tags(&server_pubkey); + + let request = oversized_request("abt-1", "tok-abt", 300); + let serialized = serde_json::to_string(&request).unwrap(); + let opts = OversizedSenderOptions::new("tok-abt") + .with_chunk_size(32) + .with_accept_handshake(true); + let frames = build_oversized_frames(&serialized, &opts).unwrap(); + + publish_plain_frame(&base, &server_pubkey, &tags, frames.start).await; + let abort = OversizedFrame::Abort { reason: None } + .into_progress_notification("tok-abt", 2, None) + .expect("build abort frame"); + publish_plain_frame(&base, &server_pubkey, &tags, abort).await; + + let result = tokio::time::timeout(Duration::from_millis(400), server_rx.recv()).await; + assert!( + result.is_err(), + "an aborted transfer must not surface a message" + ); +} + +/// Per-frame size bound: every published kind-25910 frame stays under the 1 MiB +/// single-message cap, even for a payload far larger than one frame. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_each_frame_under_max_message_size() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + // Default chunk size (48_000) keeps each frame well under MAX_MESSAGE_SIZE. + let oversized = OversizedTransferConfig::enabled(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized.clone()), + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized), + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server.take_message_receiver().expect("server rx"); + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // ~200 KB payload → several ~48 KB frames. + let request = oversized_request("sz-1", "tok-sz", 200_000); + client.send(&request).await.expect("send oversized request"); + + let incoming = tokio::time::timeout(Duration::from_millis(1500), server_rx.recv()) + .await + .expect("timeout waiting for reassembled request") + .expect("server channel closed"); + assert_eq!(incoming.message.id(), Some(&serde_json::json!("sz-1"))); + + let frames: Vec<_> = server_pool + .stored_events() + .await + .into_iter() + .filter(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND)) + .collect(); + assert!(frames.len() > 1, "payload must have been fragmented"); + for frame in &frames { + assert!( + frame.content.len() < MAX_MESSAGE_SIZE, + "every frame must stay under MAX_MESSAGE_SIZE, got {}", + frame.content.len() + ); + } +} + +/// A reassembled payload larger than the 1 MiB single-message cap is delivered +/// in full (the per-transfer cap defaults to 100 MiB). +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_reassembled_over_one_mib_succeeds() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let oversized = OversizedTransferConfig::enabled(); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized.clone()), + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized), + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server.take_message_receiver().expect("server rx"); + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // ~1.2 MB payload, comfortably over MAX_MESSAGE_SIZE (1 MiB). + let blob_len = 1_200_000; + let request = oversized_request("big-mib", "tok-mib", blob_len); + let serialized_len = serde_json::to_string(&request).unwrap().len(); + assert!( + serialized_len > MAX_MESSAGE_SIZE, + "request must exceed 1 MiB" + ); + + client.send(&request).await.expect("send >1MiB request"); + + let incoming = tokio::time::timeout(Duration::from_millis(3000), server_rx.recv()) + .await + .expect("timeout waiting for >1MiB reassembled request") + .expect("server channel closed"); + assert_eq!(incoming.message.id(), Some(&serde_json::json!("big-mib"))); + if let JsonRpcMessage::Request(req) = incoming.message { + assert_eq!( + req.params.unwrap()["blob"], + serde_json::json!("Q".repeat(blob_len)) + ); + } else { + panic!("expected a request"); + } +} + +/// Gate off: with oversized transfer disabled on the client, an above-threshold +/// request is published as a single event (no fragmentation). +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_gate_off_sends_single_event() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + // Server is oversized-capable, but the client's gate is OFF. + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(OversizedTransferConfig::enabled().with_threshold(256)), + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + // Disabled gate; threshold present only to prove it is above-threshold. + .with_oversized_transfer(OversizedTransferConfig::default().with_threshold(256)), + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server.take_message_receiver().expect("server rx"); + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Above the 256-byte threshold, but below the 1 MiB single-event cap. + let request = oversized_request("gate-off", "tok-gate", 2000); + client.send(&request).await.expect("send request"); + + let incoming = tokio::time::timeout(Duration::from_millis(1000), server_rx.recv()) + .await + .expect("timeout waiting for request") + .expect("server channel closed"); + assert_eq!(incoming.message.id(), Some(&serde_json::json!("gate-off"))); + + let frame_count = server_pool + .stored_events() + .await + .iter() + .filter(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND)) + .count(); + assert_eq!( + frame_count, 1, + "gate off must publish exactly one single event, got {frame_count}" + ); +} + +/// Oversized request roundtrip under a given encryption mode. +async fn run_oversized_request_roundtrip_mode(encryption_mode: EncryptionMode) { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let oversized = OversizedTransferConfig::enabled() + .with_threshold(6000) + .with_chunk_size(6000); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(encryption_mode) + .with_oversized_transfer(oversized.clone()), + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(encryption_mode) + .with_oversized_transfer(oversized), + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server.take_message_receiver().expect("server rx"); + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + let request = oversized_request("mode-1", "tok-mode", 10000); + client.send(&request).await.expect("send oversized request"); + + let incoming = tokio::time::timeout(Duration::from_millis(1500), server_rx.recv()) + .await + .expect("timeout waiting for reassembled request") + .expect("server channel closed"); + assert_eq!(incoming.message.method(), Some("tools/call")); + assert_eq!(incoming.message.id(), Some(&serde_json::json!("mode-1"))); +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_request_roundtrip_encryption_disabled() { + run_oversized_request_roundtrip_mode(EncryptionMode::Disabled).await; +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_request_roundtrip_encryption_optional() { + run_oversized_request_roundtrip_mode(EncryptionMode::Optional).await; +} + +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_request_roundtrip_encryption_required() { + run_oversized_request_roundtrip_mode(EncryptionMode::Required).await; +} + +// ── CEP-22 Gap #1: oversized decision measures the published event ──────────── + +/// Send `request` through a fresh client/server pair under `encryption_mode` with +/// the given oversized `threshold`, then return how many kind-25910 (plaintext +/// frames) and kind-1059 (gift-wrapped frames) events the client published. A +/// single non-oversized send is one event; a fragmented send is several. +async fn oversized_published_frame_counts( + encryption_mode: EncryptionMode, + threshold: usize, + request: &JsonRpcMessage, +) -> (usize, usize) { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let oversized = OversizedTransferConfig::enabled().with_threshold(threshold); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(encryption_mode) + .with_oversized_transfer(oversized.clone()), + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(encryption_mode) + .with_oversized_transfer(oversized), + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server.take_message_receiver().expect("server rx"); + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + client.send(request).await.expect("send request"); + + // Wait for the request to surface (single event or fully reassembled transfer), + // then settle briefly so every frame has landed in the shared store. + let _ = tokio::time::timeout(Duration::from_millis(1500), server_rx.recv()).await; + tokio::time::sleep(Duration::from_millis(50)).await; + + let events = server_pool.stored_events().await; + let kind_25910 = events + .iter() + .filter(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND)) + .count(); + let kind_1059 = events + .iter() + .filter(|e| e.kind == Kind::Custom(GIFT_WRAP_KIND)) + .count(); + (kind_25910, kind_1059) +} + +/// Gap #1 regression: the oversized decision is made on the *published* Nostr +/// event size, not the raw payload. A request whose raw serialized length is below +/// the threshold is sent as a single event in plaintext, but the SAME payload must +/// be fragmented once gift-wrap encryption inflates the published event past the +/// threshold (base64 ×1.333 + NIP-44 padding). Mirrors TS +/// `measurePublishedMcpMessageSize`; the old raw-length check sent both as a single +/// (over-cap) event. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_decision_accounts_for_encryption_inflation() { + // Margins (measured): payload=5900, threshold=8000. + // raw serialized ≈ 6013 bytes (< threshold — old check fragmented neither) + // plaintext published ≈ 6455 bytes (< threshold → single event) + // encrypted published ≈ 10065 bytes (> threshold → fragments) + // The 5900 payload is chosen so gift-wrap inflation (base64 ×1.333 + NIP-44 + // padding) is what crosses the threshold; adjust it if the envelope changes. + let threshold = 8000; + let request = oversized_request("enc-infl", "tok-infl", 5900); + + // Precondition: the raw payload is below the threshold, so the *old* raw-length + // decision would have sent a single event in BOTH modes. + let raw_len = serde_json::to_string(&request) + .expect("serialize request") + .len(); + assert!( + raw_len < threshold, + "precondition: raw payload ({raw_len}) must be below the threshold ({threshold})" + ); + + // Plaintext: the published event stays under the threshold → exactly one event. + let (plain_25910, _) = + oversized_published_frame_counts(EncryptionMode::Disabled, threshold, &request).await; + assert_eq!( + plain_25910, 1, + "a below-threshold plaintext request must publish exactly one kind-25910 event, got {plain_25910}" + ); + + // Encrypted: gift-wrap inflation pushes the published event over the threshold, + // so the SAME payload is now fragmented into multiple gift-wrapped frames. + let (_, enc_1059) = + oversized_published_frame_counts(EncryptionMode::Required, threshold, &request).await; + assert!( + enc_1059 > 1, + "the same request must fragment once gift-wrap inflates it past the threshold, got {enc_1059} gift-wrap frames" + ); +} + +// ── CEP-22 PR 3 gap 4: server accept-frame emission shape ──────────────────── + +/// Poll the shared event store for the server's emitted `accept` frame (a +/// plaintext kind-25910 notification authored by the server whose `cvm.frameType` +/// is `accept`). Panics if none appears within the window. +async fn poll_for_accept_frame( + server_pool: &Arc, + server_pubkey: &PublicKey, +) -> JsonRpcNotification { + for _ in 0..50 { + for event in server_pool.stored_events().await { + if event.kind != Kind::Custom(CTXVM_MESSAGES_KIND) || event.pubkey != *server_pubkey { + continue; + } + if let Ok(notif) = serde_json::from_str::(&event.content) { + let is_accept = notif + .params + .as_ref() + .and_then(|p| p.get("cvm")) + .and_then(|cvm| cvm.get("frameType")) + .and_then(|ft| ft.as_str()) + == Some("accept"); + if is_accept { + return notif; + } + } + } + tokio::time::sleep(Duration::from_millis(10)).await; + } + panic!("server did not emit an accept frame within the poll window"); +} + +/// When a client sends an oversized `start` before the server knows it supports +/// oversized transfer, the server emits an `accept` frame with `progress == 2` +/// and `cvm.frameType == "accept"`. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn server_emits_accept_frame_with_expected_shape() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let oversized = OversizedTransferConfig::enabled() + .with_threshold(2000) + .with_chunk_size(2000); + let (_server, _server_rx) = start_oversized_server( + Arc::clone(&server_pool), + EncryptionMode::Disabled, + oversized, + ) + .await; + let_event_loops_start().await; + + // Grey-box: inject only the `start` frame (handshake slot reserved) from a + // client that has not advertised oversized support. + let base = greybox_client_base(client_pool); + let tags = BaseTransport::create_recipient_tags(&server_pubkey); + let request = oversized_request("acc-1", "tok-acc", 300); + let serialized = serde_json::to_string(&request).unwrap(); + let opts = OversizedSenderOptions::new("tok-acc") + .with_chunk_size(64) + .with_accept_handshake(true); + let frames = build_oversized_frames(&serialized, &opts).unwrap(); + publish_plain_frame(&base, &server_pubkey, &tags, frames.start).await; + + let accept = poll_for_accept_frame(&server_pool, &server_pubkey).await; + let params = accept.params.as_ref().expect("accept frame has params"); + assert_eq!( + params["progress"].as_u64(), + Some(2), + "accept frame must be published at progress slot 2" + ); + assert_eq!( + params["cvm"]["frameType"].as_str(), + Some("accept"), + "frame must be an oversized-transfer accept" + ); + assert_eq!( + params["cvm"]["type"].as_str(), + Some("oversized-transfer"), + "accept frame must carry the oversized-transfer cvm type" + ); + assert_eq!( + params["progressToken"].as_str(), + Some("tok-acc"), + "accept frame must echo the transfer's progressToken" + ); +} From 896313ff23f8fd9767401d5a5a7f5d1a876be7d9 Mon Sep 17 00:00:00 2001 From: Harsh Date: Sun, 14 Jun 2026 07:27:35 +0530 Subject: [PATCH 100/116] feat: CEP-22 - progress-aware timeouts, transfer watchdog, default flip, docs --- Cargo.toml | 6 + README.md | 8 + docs/README.md | 1 + docs/oversized-transfer.md | 128 ++ src/lib.rs | 7 + src/rmcp_transport/mod.rs | 5 + src/rmcp_transport/progress.rs | 170 +++ src/transport/client/correlation_store.rs | 4 +- src/transport/client/mod.rs | 430 ++++++- src/transport/oversized_transfer/constants.rs | 5 +- src/transport/oversized_transfer/frame.rs | 42 +- src/transport/oversized_transfer/mod.rs | 42 +- src/transport/oversized_transfer/receiver.rs | 237 +++- src/transport/oversized_transfer/sender.rs | 4 +- src/transport/server/mod.rs | 106 +- tests/conformance_cep22_wire_format.rs | 323 +++++ tests/e2e_happy_path.rs | 16 +- tests/oversized_timeout_e2e.rs | 1045 +++++++++++++++++ tests/transport_integration.rs | 365 +++++- 19 files changed, 2842 insertions(+), 102 deletions(-) create mode 100644 docs/oversized-transfer.md create mode 100644 src/rmcp_transport/progress.rs create mode 100644 tests/conformance_cep22_wire_format.rs create mode 100644 tests/oversized_timeout_e2e.rs diff --git a/Cargo.toml b/Cargo.toml index 6105f39..df2ca99 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -70,7 +70,13 @@ required-features = ["rmcp", "test-utils"] name = "transport_integration" required-features = ["test-utils"] +[[test]] +name = "oversized_timeout_e2e" +required-features = ["rmcp", "test-utils"] + [dev-dependencies] +# `start_paused` deterministic-time tests (tokio's "full" does not include test-util). +tokio = { version = "1", features = ["test-util"] } tokio-test = "0.4" anyhow = "1" schemars = "0.8" diff --git a/README.md b/README.md index aae7a56..a5fa746 100644 --- a/README.md +++ b/README.md @@ -206,6 +206,12 @@ The in-repo Rust SDK guides live in [`docs/README.md`](docs/README.md): Encryption uses **NIP-44** for payload encryption and **NIP-59** (Gift Wrap) for metadata-private delivery. Server announcements (kinds 11316–11320) are always public. +Messages too large for a single relay event are fragmented into ordered frames +and reassembled by the receiver (CEP-22 oversized transfer, enabled by default; +it adds no event kind — frames ride inside `notifications/progress` messages). +See [docs/oversized-transfer.md](docs/oversized-transfer.md) for the timeout +model and tuning. + ### Server Transport Config | Field | Default | Description | @@ -221,6 +227,7 @@ metadata-private delivery. Server announcements (kinds 11316–11320) are always | `bootstrap_relay_urls` | `None` | Additional relays for publishing announcements (CEP-6/17) | | `publish_relay_list` | `true` | Whether to publish kind 10002 relay list metadata | | `profile_metadata` | `None` | Profile metadata for kind 0 publication (CEP-23) | +| `oversized_transfer` | enabled | CEP-22 oversized payload transfer config ([guide](docs/oversized-transfer.md)) | ### Client Transport Config @@ -233,6 +240,7 @@ metadata-private delivery. Server announcements (kinds 11316–11320) are always | `timeout` | `30s` | Response timeout | | `discovery_relay_urls` | `None` (bootstrap relays) | Relays for CEP-17 kind 10002 discovery | | `fallback_operational_relay_urls` | `None` | Relays probed in parallel with CEP-17 discovery | +| `oversized_transfer` | enabled | CEP-22 oversized payload transfer config ([guide](docs/oversized-transfer.md)) | When `relay_urls` is empty, `start()` runs automatic relay resolution: configured relays > nprofile hints > CEP-17 kind 10002 discovery > fallback probing > bootstrap defaults. diff --git a/docs/README.md b/docs/README.md index 400ac2c..6f4439d 100644 --- a/docs/README.md +++ b/docs/README.md @@ -22,6 +22,7 @@ For most native Rust applications, the primary entry points are `NostrServerTran - Encryption guide: plaintext, encrypted, and gift-wrap behavior - Stateless mode guide: client-side initialize emulation and when to use it - Discovery guide: public discovery helpers and event kinds +- Oversized transfer guide: CEP-22 fragmentation, the three-timer model, and progress-aware request options ### Bridging existing MCP applications diff --git a/docs/oversized-transfer.md b/docs/oversized-transfer.md new file mode 100644 index 0000000..9a35362 --- /dev/null +++ b/docs/oversized-transfer.md @@ -0,0 +1,128 @@ +# Oversized Transfer Guide (CEP-22) + +Nostr relays cap event sizes (commonly around 64 KiB on the wire, with a +65,535-byte NIP-44 plaintext ceiling for encrypted payloads), while MCP +results — file contents, tool output, resource reads — routinely exceed that. +CEP-22 closes the gap: a JSON-RPC message whose published form would not fit +in a single event is split into an ordered sequence of frames carried inside +MCP `notifications/progress` events, then reassembled and validated +(byte-length + SHA-256) by the receiver before it surfaces as one ordinary +message. Fragmentation is transparent to MCP consumers in both directions: +client→server requests and server→client responses. + +## Enabled by default + +Oversized transfer is **enabled by default** (matching the TypeScript SDK). +The negotiation gates make this safe with peers that don't support it: + +- the **client** fragments only requests that carry a `progressToken` (rmcp + stamps one into every outgoing request), and advertises + `support_oversized_transfer` on its first message; +- the **server** fragments responses only for clients that advertised the + capability, and advertises it on announcements and its first response. + +A peer without CEP-22 support just sees one extra discovery tag. To opt out: + +```rust +// Whole-config form: +let config = NostrClientTransportConfig::default() + .with_oversized_enabled(false); +// Same builder exists on NostrServerTransportConfig. +``` + +## Configuration + +`OversizedTransferConfig` is attached to both transport configs via +`with_oversized_transfer(..)` (or the `with_oversized_enabled(..)` shorthand): + +| Field | Default | Description | +|----------------------------|--------------|-----------------------------------------------------------------------------| +| `enabled` | `true` | Master gate: advertise + activate the capability | +| `threshold` | `48_000` | Published byte size at/above which the sender fragments | +| `chunk_size` | `48_000` | Upper bound on per-chunk payload bytes (shrunk automatically so every published frame stays under `threshold`) | +| `max_transfer_bytes` | `104_857_600` (100 MiB) | Receiver cap on a reassembled payload | +| `max_transfer_chunks` | `10_000` | Receiver cap on chunk count | +| `max_concurrent_transfers` | `64` | Receiver cap on simultaneously active transfers | +| `transfer_timeout_ms` | `300_000` | Receiver-side hard deadline per transfer, from admission; `0` disables the watchdog | +| `max_out_of_order_window` | `21` | How far ahead of the contiguous frontier a chunk may arrive and still be buffered | +| `max_out_of_order_chunks` | `42` | Cap on buffered out-of-order chunks | +| `accept_timeout_ms` | `30_000` | How long an uploading client waits for the server's `accept` handshake | + +The decision to fragment is made on the **final published event size** +(signed, JSON-escaped, and gift-wrapped when encryption is on), so `threshold` +is a real wire budget, not a payload-length heuristic. + +## The three timers + +Three independent timers govern a transfer; knowing who owns each one makes +timeout behavior predictable: + +1. **Requester idle timeout** (rmcp, per request — opt-in). Fails the call if + no progress arrives for `idle`. The transports forward every inbound + transfer frame to the requester as a plain progress notification, so a + *live* transfer resets this timer chunk by chunk while a *stalled* one + fails after `idle`. +2. **Requester max-total timeout** (rmcp, per request — opt-in). Hard cap on + the whole call regardless of progress — a trickling transfer cannot hold a + request open forever. +3. **Receiver watchdog** (`transfer_timeout_ms`, transport-owned). A hard + memory bound on inbound reassembly state, measured from `start` admission + and never refreshed by activity. Reaping is local-only — no abort frame is + emitted; the requester's own timers fail the other side. A reaped token is + re-admittable by a fresh `start`. + +The first two exist only when you pass request options — **a plain rmcp +`call_tool` has no timeout at all** (infinite await). That is the main +consumer footgun this SDK papers over: + +## Recommended MCP client usage + +```rust +use std::time::Duration; +use contextvm_sdk::{progress_aware_options, PeerRequestOptionsExt}; + +let result = running_client + .peer() + .call_tool_with_options( + params, + progress_aware_options(Duration::from_secs(60), Duration::from_secs(300)), + ) + .await?; +``` + +`progress_aware_options(idle, max_total)` builds +`PeerRequestOptions::with_timeout(idle).reset_timeout_on_progress().with_max_total_timeout(max_total)`. +The defaults `DEFAULT_OVERSIZED_IDLE_TIMEOUT` (60 s) and +`DEFAULT_OVERSIZED_MAX_TOTAL_TIMEOUT` (300 s) intentionally mirror the +transport's numbers (60 s covers the worst-case accept wait; 300 s matches the +receiver watchdog so both sides give up in the same window) — but the peer +layer cannot read transport config, so re-align them manually if you tune +`OversizedTransferConfig`. + +Unlike the TypeScript SDK's low-level `client.request()` path, rmcp's timer +reset is not tied to registering an `onprogress` callback — the reset is wired +through request options alone. + +For request types beyond `call_tool`, the generic form is two lines on public +rmcp API: + +```rust +let handle = peer.send_cancellable_request(request, options).await?; +let response = handle.await_response().await?; +``` + +### Upload (client→server) caveat + +A fragmented *request* receives at most **one** inbound reset: the server's +`accept` handshake frame — and it reaches the rmcp service loop only after the +whole upload send returns. Size `idle` and `max_total` to cover the full +upload duration, not just inter-frame gaps. + +## Synthetic progress notifications + +Because transfer frames are forwarded to the requester (stripped of their +`cvm` payload, with the request's original `progressToken` restored), +consumers with a custom progress handler observe chunk-granular progress for +oversized responses — usable as transfer-progress UX. Default rmcp handlers +ignore progress for tokens they didn't register, so no action is needed if you +don't want it. Nothing extra goes on the wire; the forwarding is in-process. diff --git a/src/lib.rs b/src/lib.rs index d8aab47..c231863 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -90,3 +90,10 @@ pub use transport::server::{ // ── rmcp re-export ────────────────────────────────────────────────── #[cfg(feature = "rmcp")] pub use rmcp; + +// ── CEP-22 progress-aware request helpers ─────────────────────────── +#[cfg(feature = "rmcp")] +pub use rmcp_transport::progress::{ + progress_aware_options, PeerRequestOptionsExt, DEFAULT_OVERSIZED_IDLE_TIMEOUT, + DEFAULT_OVERSIZED_MAX_TOTAL_TIMEOUT, +}; diff --git a/src/rmcp_transport/mod.rs b/src/rmcp_transport/mod.rs index 436f1dd..8cc1211 100644 --- a/src/rmcp_transport/mod.rs +++ b/src/rmcp_transport/mod.rs @@ -4,6 +4,7 @@ //! ContextVM transports plug directly into rmcp service APIs. pub mod convert; +pub mod progress; pub mod transport; pub mod worker; @@ -14,4 +15,8 @@ pub use convert::{ internal_to_rmcp_client_rx, internal_to_rmcp_server_rx, rmcp_client_tx_to_internal, rmcp_server_tx_to_internal, }; +pub use progress::{ + progress_aware_options, PeerRequestOptionsExt, DEFAULT_OVERSIZED_IDLE_TIMEOUT, + DEFAULT_OVERSIZED_MAX_TOTAL_TIMEOUT, +}; pub use worker::{NostrClientWorker, NostrServerWorker}; diff --git a/src/rmcp_transport/progress.rs b/src/rmcp_transport/progress.rs new file mode 100644 index 0000000..07914d0 --- /dev/null +++ b/src/rmcp_transport/progress.rs @@ -0,0 +1,170 @@ +//! CEP-22: progress-aware request options for rmcp consumers. +//! +//! Under the rmcp fork, plain [`Peer`] calls such as `call_tool` use +//! `PeerRequestOptions::no_options()` — **no timeout at all**: a stalled +//! oversized response hangs the caller forever. This module closes that gap +//! the way the TS SDK's docs do — by passing request options on the existing +//! call — via an extension trait carrying an options-taking `call_tool` +//! variant, plus a constructor for the recommended progress-aware settings. +//! +//! With CEP-22 enabled, the Nostr transports forward each inbound transfer +//! frame to the requester as a plain progress notification, so an idle +//! timeout built by [`progress_aware_options`] resets on every chunk: a live +//! transfer can run long, a stalled one fails after `idle`, and +//! `max_total` caps the call regardless of progress. +//! +//! ```ignore +//! use contextvm_sdk::{progress_aware_options, PeerRequestOptionsExt}; +//! +//! let result = running_service +//! .peer() +//! .call_tool_with_options( +//! params, +//! progress_aware_options( +//! contextvm_sdk::DEFAULT_OVERSIZED_IDLE_TIMEOUT, +//! contextvm_sdk::DEFAULT_OVERSIZED_MAX_TOTAL_TIMEOUT, +//! ), +//! ) +//! .await?; +//! ``` + +use std::time::Duration; + +use rmcp::model::{ + CallToolRequest, CallToolRequestParams, CallToolResult, ClientRequest, ServerResult, +}; +use rmcp::service::{Peer, PeerRequestOptions, ServiceError}; +use rmcp::RoleClient; + +/// Default requester-side idle timeout for requests that may trigger a CEP-22 +/// oversized transfer: 60 s. +/// +/// TS parity twice over: equals the upstream TS SDK's blanket per-request +/// timeout (`DEFAULT_REQUEST_TIMEOUT_MSEC`), and exceeds the worst-case +/// inter-chunk gap including the 30 s accept wait +/// ([`DEFAULT_ACCEPT_TIMEOUT_MS`](crate::transport::oversized_transfer::DEFAULT_ACCEPT_TIMEOUT_MS)). +pub const DEFAULT_OVERSIZED_IDLE_TIMEOUT: Duration = Duration::from_secs(60); + +/// Default requester-side max-total timeout: 300 s. +/// +/// Aligned with the receiver-side watchdog default +/// ([`DEFAULT_TRANSFER_TIMEOUT_MS`](crate::transport::oversized_transfer::DEFAULT_TRANSFER_TIMEOUT_MS)) +/// so the requester gives up in the same window the receiver reaps state — +/// symmetric failure. (Upstream TS sets no max-total default; here it stays +/// opt-in via [`progress_aware_options`], never baked into plain calls.) +pub const DEFAULT_OVERSIZED_MAX_TOTAL_TIMEOUT: Duration = Duration::from_secs(300); + +/// Build the recommended [`PeerRequestOptions`] for requests whose responses +/// may arrive as CEP-22 oversized transfers: an `idle` timeout that resets on +/// every progress notification, capped by `max_total`. +/// +/// Equivalent to +/// `PeerRequestOptions::with_timeout(idle).reset_timeout_on_progress().with_max_total_timeout(max_total)`. +/// Named after the mechanism (progress-aware timeouts), not the oversized use +/// case — mirroring the TS SDK, where "oversized" appears in docs but never in +/// the API surface. +/// +/// Sizing notes: +/// - `reset_timeout_on_progress` without an idle timeout is a **no-op** — the +/// fork registers a progress watcher only when *both* are set, which is why +/// this constructor takes `idle` rather than making it optional. +/// - The client→server upload direction receives at most **one** inbound +/// reset (the server's `accept` handshake frame) — and it reaches the rmcp +/// service loop only after the whole upload send returns. Size `idle` and +/// `max_total` to cover the full upload duration, not just the gaps. +/// - Sensible defaults: [`DEFAULT_OVERSIZED_IDLE_TIMEOUT`] / +/// [`DEFAULT_OVERSIZED_MAX_TOTAL_TIMEOUT`]. They intentionally mirror the +/// transport's `OversizedTransferConfig` numbers but are not read from it — +/// the peer layer has no access to transport config by design; align them +/// manually if you tune the transport. +pub fn progress_aware_options(idle: Duration, max_total: Duration) -> PeerRequestOptions { + PeerRequestOptions::with_timeout(idle) + .reset_timeout_on_progress() + .with_max_total_timeout(max_total) +} + +/// Options-taking call variants for [`Peer`] — the rs-side analog +/// of passing `RequestOptions` inline to the TS SDK's `client.callTool`. +/// +/// Without these, high-level fork calls (`peer.call_tool(..)` etc.) run with +/// `PeerRequestOptions::no_options()`: **no timeout, infinite await**. Pair +/// with [`progress_aware_options`] for any call whose response may be large +/// (CEP-22 fragments every rmcp request's response once the peer advertises +/// support — rmcp stamps a progress token into every outgoing request). +/// +/// For request types without a dedicated variant here, the generic path is +/// two lines on public fork API — no wrapper needed: +/// +/// ```ignore +/// let handle = peer.send_cancellable_request(request, options).await?; +/// let response = handle.await_response().await?; +/// ``` +/// +/// On timeout the call fails with `ServiceError::Timeout { timeout }` (the +/// value identifies which timer fired: `idle` vs `max_total`) and rmcp +/// publishes a `notifications/cancelled` for the request. +pub trait PeerRequestOptionsExt { + /// `call_tool` with explicit [`PeerRequestOptions`] — the direct analog of + /// TS `client.callTool(params, schema, options)`. + fn call_tool_with_options( + &self, + params: CallToolRequestParams, + options: PeerRequestOptions, + ) -> impl std::future::Future> + Send; +} + +impl PeerRequestOptionsExt for Peer { + async fn call_tool_with_options( + &self, + params: CallToolRequestParams, + options: PeerRequestOptions, + ) -> Result { + // Mirrors the fork's `method!` expansion for `call_tool` + // (service/client.rs), with options threaded through + // `send_cancellable_request` instead of the option-less default. + let result = self + .send_cancellable_request( + ClientRequest::CallToolRequest(CallToolRequest::new(params)), + options, + ) + .await? + .await_response() + .await?; + match result { + ServerResult::CallToolResult(result) => Ok(result), + _ => Err(ServiceError::UnexpectedResponse), + } + } +} + +#[cfg(test)] +mod tests { + use super::*; + + /// Pins the `progress_aware_options` wiring: the constructor must (a) set the + /// idle `timeout`, (b) enable `reset_timeout_on_progress` — without which the + /// fork registers no progress watcher (`send_request_with_option` only arms + /// one when *both* the flag and a timeout are set), so inbound chunks would + /// never reset the timer — and (c) populate `max_total_timeout`. Distinct + /// idle/max-total values also catch an accidental argument swap in the + /// builder chain. End-to-end behavior is covered by the timeout tests in + /// `tests/oversized_timeout_e2e.rs`; this is the fast unit guard on the flags. + #[test] + fn progress_aware_options_sets_reset_and_both_timeouts() { + let idle = Duration::from_millis(250); + let max_total = Duration::from_secs(42); + + let options = progress_aware_options(idle, max_total); + + assert_eq!(options.timeout, Some(idle), "idle timeout must be set"); + assert!( + options.reset_timeout_on_progress, + "reset_timeout_on_progress must be enabled or the fork arms no progress watcher" + ); + assert_eq!( + options.max_total_timeout, + Some(max_total), + "max_total_timeout must be set" + ); + } +} diff --git a/src/transport/client/correlation_store.rs b/src/transport/client/correlation_store.rs index 2b1ddd2..6ee6558 100644 --- a/src/transport/client/correlation_store.rs +++ b/src/transport/client/correlation_store.rs @@ -97,8 +97,8 @@ impl ClientCorrelationStore { } /// Refresh a pending request's registration timestamp without disturbing its - /// `original_id`/`is_initialize`. Used by CEP-22 oversized transfers (OD-2): - /// each inbound frame "touches" the entry so [`sweep_expired`](Self::sweep_expired) + /// `original_id`/`is_initialize`. Used by CEP-22 oversized transfers: each + /// inbound frame "touches" the entry so [`sweep_expired`](Self::sweep_expired) /// does not evict it mid-transfer. Returns `true` if the entry existed. pub async fn touch(&self, event_id: &str) -> bool { let mut cache = self.pending_requests.write().await; diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index 4f87f5c..a88473b 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -31,9 +31,9 @@ use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; use crate::transport::discovery_tags::{parse_discovered_peer_capabilities, PeerCapabilities}; use crate::transport::oversized_transfer::{ - build_oversized_frames, resolve_safe_chunk_size, send_oversized_transfer, OversizedFrame, - OversizedSenderOptions, OversizedTransferConfig, OversizedTransferReceiver, - NOTIFICATIONS_PROGRESS_METHOD, + build_oversized_frames, progress_token_string, resolve_safe_chunk_size, + send_oversized_transfer, OversizedFrame, OversizedSenderOptions, OversizedTransferConfig, + OversizedTransferReceiver, NOTIFICATIONS_PROGRESS_METHOD, }; const LOG_TARGET: &str = "contextvm_sdk::transport::client"; @@ -66,7 +66,7 @@ pub struct NostrClientTransportConfig { pub discovery_relay_urls: Option>, /// Non-authoritative operational relays probed in parallel with CEP-17 discovery. pub fallback_operational_relay_urls: Option>, - /// CEP-22 oversized payload transfer configuration. Disabled by default. + /// CEP-22 oversized payload transfer configuration. Enabled by default. pub oversized_transfer: OversizedTransferConfig, } @@ -171,6 +171,14 @@ pub struct NostrClientTransport { /// `send()` awaiting the server's `accept` registers a one-shot here before /// publishing `start`; the event loop fires it when the `accept` frame arrives. accept_waiters: Arc>>>, + /// CEP-22: original `_meta.progressToken` JSON values of sent + /// oversized-eligible requests, keyed by their stringified form. Frames + /// stringify tokens on the wire (both SDKs), so the original value — + /// `Number` for rmcp-issued tokens — survives only here; progress forwarded + /// to the requester must restore it for rmcp's watcher lookup to match + /// (`Number(5)` ≠ `String("5")`). LRU-bounded; entries are dropped when + /// their transfer concludes and cleared on [`close`](Self::close). + original_progress_tokens: Arc>>, /// Channel for receiving processed MCP messages from the event loop. message_tx: Option>, message_rx: Option>, @@ -233,6 +241,9 @@ impl NostrClientTransport { (&config.oversized_transfer).into(), ))); let accept_waiters = Arc::new(Mutex::new(HashMap::new())); + let original_progress_tokens = Arc::new(Mutex::new(LruCache::new( + NonZeroUsize::new(DEFAULT_LRU_SIZE).expect("DEFAULT_LRU_SIZE must be non-zero"), + ))); Ok(Self { base: BaseTransport { @@ -242,6 +253,7 @@ impl NostrClientTransport { }, oversized_receiver, accept_waiters, + original_progress_tokens, config, server_pubkey, hinted_relay_urls, @@ -303,6 +315,9 @@ impl NostrClientTransport { (&config.oversized_transfer).into(), ))); let accept_waiters = Arc::new(Mutex::new(HashMap::new())); + let original_progress_tokens = Arc::new(Mutex::new(LruCache::new( + NonZeroUsize::new(DEFAULT_LRU_SIZE).expect("DEFAULT_LRU_SIZE must be non-zero"), + ))); Ok(Self { base: BaseTransport { @@ -312,6 +327,7 @@ impl NostrClientTransport { }, oversized_receiver, accept_waiters, + original_progress_tokens, config, server_pubkey, hinted_relay_urls, @@ -403,6 +419,8 @@ impl NostrClientTransport { let seen_gift_wrap_ids = self.seen_gift_wrap_ids.clone(); let oversized_receiver = self.oversized_receiver.clone(); let accept_waiters = self.accept_waiters.clone(); + let original_progress_tokens = self.original_progress_tokens.clone(); + let oversized_enabled = self.config.oversized_transfer.enabled; let timeout = self.config.timeout; let token = self.cancellation_token.child_token(); @@ -420,6 +438,8 @@ impl NostrClientTransport { seen_gift_wrap_ids, oversized_receiver, accept_waiters, + original_progress_tokens, + oversized_enabled, timeout, token, ) @@ -458,6 +478,13 @@ impl NostrClientTransport { }; waiters.clear(); } + { + let mut originals = match self.original_progress_tokens.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + originals.clear(); + } self.base.disconnect().await } @@ -491,18 +518,25 @@ impl NostrClientTransport { // CEP-22: only a request carrying a `progressToken` is eligible for oversized // fragmentation (the token addresses the frames); extract it once up front. + // Tokens may be JSON strings or numbers (rmcp issues numbers): the + // stringified form keys all transport state, and the original value is + // recorded so progress forwarded to the requester can restore the token's + // wire type. let oversized_token: Option = if is_request && self.config.oversized_transfer.enabled { - match message { + let original = match message { JsonRpcMessage::Request(req) => req .params .as_ref() .and_then(|p| p.get("_meta")) - .and_then(|m| m.get("progressToken")) - .and_then(|t| t.as_str()) - .map(String::from), + .and_then(|m| m.get("progressToken")), _ => None, + }; + let token = original.and_then(progress_token_string); + if let (Some(token), Some(original)) = (token.as_deref(), original) { + self.record_original_progress_token(token, original); } + token } else { None }; @@ -665,7 +699,7 @@ impl NostrClientTransport { /// /// Builds `start → chunks… → end` frames, registers an `accept` waiter before /// publishing `start` when the server's support is not yet known, drives the - /// §1 [`send_oversized_transfer`] sequencer, and registers the pending request + /// [`send_oversized_transfer`] sequencer, and registers the pending request /// against the **end** frame's event id (the value the server correlates its /// response to). One-shot discovery tags ride the `start` frame only. async fn send_oversized_request( @@ -801,6 +835,98 @@ impl NostrClientTransport { Ok(()) } + /// CEP-22: record the original `_meta.progressToken` value of an + /// outbound request under its stringified form, replacing any stale entry + /// for the same key. See [`Self::original_progress_tokens`]. + fn record_original_progress_token(&self, token: &str, original: &serde_json::Value) { + let mut originals = match self.original_progress_tokens.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + originals.push(token.to_string(), original.clone()); + } + + /// CEP-22: drop — and return — the original `progressToken` value + /// recorded for `token`, once its transfer concludes (delivered or failed). + fn remove_original_progress_token( + originals: &Mutex>, + token: Option<&str>, + ) -> Option { + let token = token?; + let mut originals = match originals.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + originals.pop(token) + } + + /// CEP-22: look up — without removing — the original `progressToken` + /// value recorded for `token`, promoting its LRU recency so an in-flight + /// transfer's record outlives idle ones. + fn original_progress_token( + originals: &Mutex>, + token: &str, + ) -> Option { + let mut originals = match originals.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + originals.get(token).cloned() + } + + /// CEP-22: build the plain `notifications/progress` forwarded to the + /// local consumer for an inbound oversized-transfer frame: `progress` is + /// copied verbatim (plus `total`/`message` when present), the `cvm` frame + /// payload is omitted, and `progressToken` is set to `original_token` — + /// the value recorded at send time, NOT the frame's wire token. The + /// wire stringifies every token, but rmcp's progress-watcher map is keyed + /// by exact JSON type (`Number(5)` ≠ `String("5")`), so only the recorded + /// original resets the requester's idle timer. Returns `None` when the + /// frame has no `progress` (malformed; nothing worth forwarding). + fn stripped_progress_notification( + params: &serde_json::Value, + original_token: &serde_json::Value, + ) -> Option { + let mut stripped = serde_json::Map::new(); + stripped.insert("progressToken".to_string(), original_token.clone()); + stripped.insert("progress".to_string(), params.get("progress")?.clone()); + for key in ["total", "message"] { + if let Some(value) = params.get(key) { + stripped.insert(key.to_string(), value.clone()); + } + } + Some(JsonRpcMessage::Notification(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: NOTIFICATIONS_PROGRESS_METHOD.to_string(), + params: Some(serde_json::Value::Object(stripped)), + })) + } + + /// CEP-22: forward one stripped progress notification for + /// the oversized frame `notif` onto the consumer channel, restoring the + /// token recorded at send time. Falls back to the wire token for + /// transfers with no record (e.g. a transfer addressed to a token this + /// transport never sent); rmcp ignores tokens it never issued, so the + /// fallback forward is harmless. + fn forward_stripped_progress( + notif: &JsonRpcNotification, + token: &str, + originals: &Mutex>, + tx: &tokio::sync::mpsc::UnboundedSender, + ) { + let Some(params) = notif.params.as_ref() else { + return; + }; + let Some(original) = Self::original_progress_token(originals, token) + .or_else(|| params.get("progressToken").cloned()) + else { + return; + }; + if let Some(stripped) = Self::stripped_progress_notification(params, &original) { + let _ = tx.send(stripped); + } + } + /// Take the message receiver for consuming incoming messages. pub fn take_message_receiver( &mut self, @@ -844,6 +970,8 @@ impl NostrClientTransport { seen_gift_wrap_ids: Arc>>, oversized_receiver: Arc>, accept_waiters: Arc>>>, + original_progress_tokens: Arc>>, + oversized_enabled: bool, timeout: Duration, cancel: CancellationToken, ) { @@ -888,6 +1016,7 @@ impl NostrClientTransport { &seen_gift_wrap_ids, &oversized_receiver, &accept_waiters, + &original_progress_tokens, &relay_pool, ) .await; @@ -902,6 +1031,28 @@ impl NostrClientTransport { "Swept stale pending requests (rmcp handles timeout errors)" ); } + // CEP-22: reap inbound transfers past their hard deadline. + // Local-only (no abort frame is emitted): the requester's + // own timeout fails the call, and late frames are + // orphan-ignored. `remove_expired` no-ops when + // `transfer_timeout_ms` is 0; the sync guard is dropped + // before anything awaits. + if oversized_enabled { + let reaped = { + let mut receiver = match oversized_receiver.lock() { + Ok(g) => g, + Err(p) => p.into_inner(), + }; + receiver.remove_expired() + }; + for token in reaped { + tracing::warn!( + target: LOG_TARGET, + token = %token, + "Oversized transfer reaped by watchdog" + ); + } + } } } } @@ -1033,6 +1184,7 @@ impl NostrClientTransport { seen_gift_wrap_ids: &Arc>>, oversized_receiver: &Arc>, accept_waiters: &Arc>>>, + original_progress_tokens: &Arc>>, relay_pool: &Arc, ) { let event = match notification { @@ -1185,11 +1337,13 @@ impl NostrClientTransport { if notif.method == NOTIFICATIONS_PROGRESS_METHOD && OversizedTransferReceiver::is_oversized_frame(¬if) { + // Token extraction accepts string or number — defensive only: + // every known sender stringifies tokens into frames. let token = notif .params .as_ref() .and_then(|p| p.get("progressToken")) - .and_then(|t| t.as_str()); + .and_then(progress_token_string); // Route `accept` frames to the waiting sender by progressToken // (their e-tag is the start-frame id, which is not in `pending`). @@ -1200,7 +1354,7 @@ impl NostrClientTransport { .and_then(OversizedFrame::from_cvm_value) .is_some_and(|f| matches!(f, OversizedFrame::Accept)); if is_accept { - if let Some(token) = token { + if let Some(ref token) = token { let waiter = { let mut waiters = match accept_waiters.lock() { Ok(g) => g, @@ -1210,35 +1364,82 @@ impl NostrClientTransport { }; if let Some(waiter) = waiter { let _ = waiter.send(()); + // The accept is the one inbound frame of a + // client→server upload — forward it (stripped) so + // the requester's idle timer re-arms for the + // response-wait phase. Only for a live waiter: a + // duplicate or stray accept must not poke the timer. + Self::forward_stripped_progress( + ¬if, + token, + original_progress_tokens, + tx, + ); } } return; } - // OD-2: touch the pending entry so the sweep does not evict the + // Touch the pending entry so the sweep does not evict the // request mid-transfer (chunks do not otherwise refresh it). if let Some(ref correlated_id) = e_tag { pending.touch(correlated_id.as_str()).await; } // Feed the frame to the reassembler (process_frame is sync; the - // guard is dropped before any await). - let outcome = { + // guard is dropped before any await or channel send). + let (outcome, tracked) = { let mut receiver = match oversized_receiver.lock() { Ok(g) => g, Err(p) => p.into_inner(), }; - receiver.process_frame(¬if) + let outcome = receiver.process_frame(¬if); + // Zombie guard: forward progress only for transfers still + // tracked after this frame — a late/orphan frame must not + // keep a dead request's idle timer alive. + let tracked = token + .as_deref() + .is_some_and(|token| receiver.is_tracking(token)); + (outcome, tracked) }; match outcome { - // start/chunk consumed — do NOT touch `pending` or validate. - Ok(None) => return, + // start/chunk consumed — forward a stripped (cvm-less) + // progress notification carrying the original token so the + // requester's progress-aware idle timeout resets. + Ok(None) => { + if tracked { + if let Some(ref token) = token { + Self::forward_stripped_progress( + ¬if, + token, + original_progress_tokens, + tx, + ); + } + } + return; + } // end frame: deliver the reassembled (already-validated, may - // exceed 1 MB) message and clear the pending entry. + // exceed 1 MB) message and clear the pending entry. No extra + // progress forward — the response itself resolves the request. Ok(Some(message)) => { if let Some(ref correlated_id) = e_tag { pending.remove(correlated_id.as_str()).await; + } else { + // Matches the TS SDK: an oversized response that + // reassembles without a correlation `e` tag is still + // delivered (rmcp matches it by JSON-RPC id), but the + // missing transport-level correlation is worth a warn. + tracing::warn!( + target: LOG_TARGET, + "Oversized transfer completed without a correlation `e` tag; \ + delivering the reassembled response uncorrelated" + ); } + Self::remove_original_progress_token( + original_progress_tokens, + token.as_deref(), + ); let _ = tx.send(message); return; } @@ -1249,6 +1450,10 @@ impl NostrClientTransport { error = %error, "Inbound oversized transfer failed" ); + Self::remove_original_progress_token( + original_progress_tokens, + token.as_deref(), + ); return; } } @@ -1615,6 +1820,9 @@ mod tests { seen_gift_wrap_ids: Arc::new(Mutex::new(LruCache::new(NonZeroUsize::new(10).unwrap()))), oversized_receiver: Arc::new(Mutex::new(OversizedTransferReceiver::new())), accept_waiters: Arc::new(Mutex::new(HashMap::new())), + original_progress_tokens: Arc::new(Mutex::new(LruCache::new( + NonZeroUsize::new(10).unwrap(), + ))), message_tx: Some(tokio::sync::mpsc::unbounded_channel().0), message_rx: None, cancellation_token: CancellationToken::new(), @@ -1637,9 +1845,14 @@ mod tests { let t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Optional); let tags = t.get_client_capability_tags(); let names = tag_names(&tags); + // The oversized tag (default-on) is pushed last. assert_eq!( names, - vec!["support_encryption", "support_encryption_ephemeral"] + vec![ + "support_encryption", + "support_encryption_ephemeral", + "support_oversized_transfer" + ] ); } @@ -1647,7 +1860,8 @@ mod tests { fn client_capability_tags_encryption_disabled() { let t = make_transport_for_tags(EncryptionMode::Disabled, GiftWrapMode::Optional); let tags = t.get_client_capability_tags(); - assert!(tags.is_empty()); + // No encryption tags; the default-on oversized tag remains. + assert_eq!(tag_names(&tags), vec!["support_oversized_transfer"]); } #[test] @@ -1655,13 +1869,28 @@ mod tests { let t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Persistent); let tags = t.get_client_capability_tags(); let names = tag_names(&tags); - assert_eq!(names, vec!["support_encryption"]); + assert_eq!( + names, + vec!["support_encryption", "support_oversized_transfer"] + ); } #[test] - fn client_capability_tags_oversized_disabled_by_default() { + fn client_capability_tags_oversized_enabled_by_default() { let t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Optional); - assert!(!t.config.oversized_transfer.enabled); + assert!(t.config.oversized_transfer.enabled); + let names = tag_names(&t.get_client_capability_tags()); + assert!( + names.contains(&"support_oversized_transfer".to_string()), + "oversized tag must be advertised by default" + ); + } + + #[test] + fn client_capability_tags_oversized_opt_out() { + // The opt-out gate still works: disabling suppresses the tag. + let mut t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Optional); + t.config.oversized_transfer = OversizedTransferConfig::default().with_enabled(false); let names = tag_names(&t.get_client_capability_tags()); assert!( !names.contains(&"support_oversized_transfer".to_string()), @@ -1699,6 +1928,161 @@ mod tests { assert_eq!(cfg.oversized_transfer.chunk_size, 1024); } + // ── CEP-22 original progressToken record/restore ───────────── + + #[test] + fn original_progress_token_roundtrip_preserves_numeric_type() { + let t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Optional); + // rmcp stamps numeric tokens; the record keys them by stringified form. + t.record_original_progress_token("7", &serde_json::json!(7)); + let restored = NostrClientTransport::remove_original_progress_token( + &t.original_progress_tokens, + Some("7"), + ); + assert_eq!(restored, Some(serde_json::json!(7))); + // Dropped on first take — the transfer concluded. + assert_eq!( + NostrClientTransport::remove_original_progress_token( + &t.original_progress_tokens, + Some("7"), + ), + None + ); + } + + #[test] + fn original_progress_token_string_never_parsed_to_number() { + // A legitimate String("5") token must restore as a string — restoring + // by parsing numeric-looking wire strings would corrupt it. + let t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Optional); + t.record_original_progress_token("5", &serde_json::json!("5")); + assert_eq!( + NostrClientTransport::remove_original_progress_token( + &t.original_progress_tokens, + Some("5"), + ), + Some(serde_json::json!("5")) + ); + } + + #[test] + fn remove_original_progress_token_handles_missing() { + let t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Optional); + assert_eq!( + NostrClientTransport::remove_original_progress_token(&t.original_progress_tokens, None,), + None + ); + assert_eq!( + NostrClientTransport::remove_original_progress_token( + &t.original_progress_tokens, + Some("unknown"), + ), + None + ); + } + + /// `send()` must record the original token value for every + /// oversized-eligible request — including sub-threshold ones, whose + /// *responses* may still come back fragmented. + #[tokio::test] + async fn send_records_numeric_progress_token_original() { + let mut t = make_transport_for_tags(EncryptionMode::Disabled, GiftWrapMode::Optional); + t.config.oversized_transfer.enabled = true; + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ "_meta": { "progressToken": 7 } })), + }); + t.send(&request).await.expect("send small request"); + + let recorded = NostrClientTransport::remove_original_progress_token( + &t.original_progress_tokens, + Some("7"), + ); + assert_eq!( + recorded, + Some(serde_json::json!(7)), + "numeric token must be recorded under its stringified form" + ); + } + + /// With oversized transfer disabled (explicit opt-out) nothing is recorded. + #[tokio::test] + async fn send_records_nothing_when_oversized_disabled() { + let mut t = make_transport_for_tags(EncryptionMode::Disabled, GiftWrapMode::Optional); + t.config.oversized_transfer = OversizedTransferConfig::default().with_enabled(false); + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(1), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ "_meta": { "progressToken": 7 } })), + }); + t.send(&request).await.expect("send small request"); + + assert_eq!( + NostrClientTransport::remove_original_progress_token( + &t.original_progress_tokens, + Some("7"), + ), + None + ); + } + + // ── CEP-22 stripped progress construction ──────────────────── + + #[test] + fn stripped_progress_notification_strips_cvm_and_restores_token() { + let params = serde_json::json!({ + "progressToken": "7", + "progress": 3, + "total": 5, + "message": "transferring", + "cvm": { "type": "oversized-transfer", "frameType": "chunk", "data": "x" }, + }); + let stripped = + NostrClientTransport::stripped_progress_notification(¶ms, &serde_json::json!(7)) + .expect("frame carries progress"); + let JsonRpcMessage::Notification(n) = stripped else { + panic!("expected a notification"); + }; + assert_eq!(n.method, NOTIFICATIONS_PROGRESS_METHOD); + let p = n.params.expect("params"); + assert_eq!( + p["progressToken"], + serde_json::json!(7), + "token must be the restored original, not the wire string" + ); + assert_eq!(p["progress"], serde_json::json!(3)); + assert_eq!(p["total"], serde_json::json!(5)); + assert_eq!(p["message"], serde_json::json!("transferring")); + assert!(p.get("cvm").is_none(), "cvm payload must be stripped"); + } + + #[test] + fn stripped_progress_notification_requires_progress_and_omits_absent_fields() { + // No `progress` → nothing worth forwarding. + let malformed = serde_json::json!({ "progressToken": "7", "cvm": {} }); + assert!(NostrClientTransport::stripped_progress_notification( + &malformed, + &serde_json::json!(7) + ) + .is_none()); + + // Absent total/message are omitted, not nulled. + let minimal = serde_json::json!({ "progressToken": "7", "progress": 1 }); + let stripped = + NostrClientTransport::stripped_progress_notification(&minimal, &serde_json::json!("7")) + .expect("progress present"); + let JsonRpcMessage::Notification(n) = stripped else { + panic!("expected a notification"); + }; + let p = n.params.expect("params"); + let keys = p.as_object().expect("object params"); + assert_eq!(keys.len(), 2, "only progressToken + progress: {p}"); + assert_eq!(p["progressToken"], serde_json::json!("7")); + } + #[test] fn client_discovery_tags_sent_once() { let t = make_transport_for_tags(EncryptionMode::Optional, GiftWrapMode::Optional); diff --git a/src/transport/oversized_transfer/constants.rs b/src/transport/oversized_transfer/constants.rs index e541d01..66f6764 100644 --- a/src/transport/oversized_transfer/constants.rs +++ b/src/transport/oversized_transfer/constants.rs @@ -33,8 +33,9 @@ pub const DEFAULT_MAX_CONCURRENT_TRANSFERS: usize = 64; /// Default hard timeout for an in-flight transfer (milliseconds). /// -/// Not enforced by the pure engine (no timers yet); wired into the -/// transport watchdog once transport integration lands. +/// Measured from `start` admission, never refreshed by chunk activity, and +/// enforced by sweeping +/// [`OversizedTransferReceiver::remove_expired`](super::OversizedTransferReceiver::remove_expired). pub const DEFAULT_TRANSFER_TIMEOUT_MS: u64 = 5 * 60 * 1000; /// Default maximum forward gap between the next expected chunk and an diff --git a/src/transport/oversized_transfer/frame.rs b/src/transport/oversized_transfer/frame.rs index b5242e2..452143e 100644 --- a/src/transport/oversized_transfer/frame.rs +++ b/src/transport/oversized_transfer/frame.rs @@ -109,7 +109,10 @@ impl OversizedFrame { /// Wrap this frame in a `notifications/progress` [`JsonRpcNotification`]. /// /// Builds the outer `params` with `progressToken`, `progress`, an optional - /// human-readable `message` (non-normative UX), and the `cvm` frame. + /// human-readable `message` (non-normative UX), and the `cvm` frame. The + /// token is always emitted as a JSON **string**, even when the originating + /// request carried a numeric one (matching the TS SDK's + /// `String(progressToken)`); see [`progress_token_string`]. pub fn into_progress_notification( &self, progress_token: &str, @@ -135,6 +138,23 @@ impl OversizedFrame { } } +/// Coerce a `progressToken` JSON value to its canonical string form. +/// +/// MCP progress tokens may be JSON strings **or numbers** (rmcp stamps a +/// numeric token into every outgoing request), so token extraction must accept +/// both; all transport-internal keying (correlation routes, accept waiters, +/// reassembly state, frame addressing) uses the stringified form. The wire +/// format is unchanged — frames always carry a string token +/// ([`OversizedFrame::into_progress_notification`]), exactly like the TS SDK's +/// `String(progressToken)`. Returns `None` for any other JSON type. +pub fn progress_token_string(value: &Value) -> Option { + match value { + Value::String(s) => Some(s.clone()), + Value::Number(n) => Some(n.to_string()), + _ => None, + } +} + #[cfg(test)] mod tests { use super::*; @@ -244,4 +264,24 @@ mod tests { let params = notification.params.as_ref().unwrap(); assert!(!params.as_object().unwrap().contains_key("message")); } + + #[test] + fn progress_token_string_accepts_string_and_number() { + assert_eq!( + progress_token_string(&json!("tok-1")), + Some("tok-1".to_string()) + ); + assert_eq!(progress_token_string(&json!(7)), Some("7".to_string())); + assert_eq!(progress_token_string(&json!(0)), Some("0".to_string())); + assert_eq!(progress_token_string(&json!(-3)), Some("-3".to_string())); + assert_eq!(progress_token_string(&json!(7.5)), Some("7.5".to_string())); + } + + #[test] + fn progress_token_string_rejects_other_types() { + assert_eq!(progress_token_string(&json!(null)), None); + assert_eq!(progress_token_string(&json!(true)), None); + assert_eq!(progress_token_string(&json!({ "t": 1 })), None); + assert_eq!(progress_token_string(&json!([1])), None); + } } diff --git a/src/transport/oversized_transfer/mod.rs b/src/transport/oversized_transfer/mod.rs index f517725..828ab12 100644 --- a/src/transport/oversized_transfer/mod.rs +++ b/src/transport/oversized_transfer/mod.rs @@ -8,10 +8,11 @@ //! `sdk/src/transport/oversized-transfer/`. //! //! This module is the **pure engine**: building frames ([`codec`]) and -//! reassembling them ([`receiver`]). It carries no transport, I/O, or timers — -//! those are wired in by the client and server transports once transport -//! integration lands. Until then the module is intentionally unused by the -//! rest of the crate. +//! reassembling them ([`receiver`]). It carries no transport, I/O, or live +//! timers — the client and server transports drive it. The hard per-transfer +//! watchdog (`transfer_timeout_ms`) is tracked from `start` admission and +//! reaped via [`OversizedTransferReceiver::remove_expired`] when the owning +//! transport sweeps. //! //! ``` //! use contextvm_sdk::transport::oversized_transfer::{ @@ -56,26 +57,31 @@ pub use codec::{ }; pub use constants::*; pub use errors::OversizedTransferError; -pub use frame::{CompletionMode, OversizedFrame}; +pub use frame::{progress_token_string, CompletionMode, OversizedFrame}; pub use receiver::{OversizedTransferReceiver, TransferPolicy}; pub use sender::send_oversized_transfer; pub use sizing::{measure_published_event_size, resolve_safe_chunk_size}; /// CEP-22 oversized-transfer configuration shared by both transports. /// -/// Bundles the capability gate plus the sender/receiver tuning knobs (D6) so the +/// Bundles the capability gate plus the sender/receiver tuning knobs so the /// nine numeric defaults don't clutter the flat transport configs. Attached to /// [`NostrServerTransportConfig`](crate::transport::NostrServerTransportConfig) /// and [`NostrClientTransportConfig`](crate::transport::NostrClientTransportConfig) /// via their `with_oversized_transfer` / `with_oversized_enabled` builders. /// -/// **Disabled by default** — until a peer opts in, no `support_oversized_transfer` -/// capability is advertised and the server never learns or activates the feature. +/// **Enabled by default** (TS parity) — opt out with +/// [`with_enabled(false)`](Self::with_enabled) or the transports' +/// `with_oversized_enabled(false)` builders. The negotiation gates make the +/// default safe for non-oversized peers: the server activates only for +/// clients that advertise support, and the client fragments only requests +/// carrying a `progressToken` — a disabled peer just sees one extra +/// `support_oversized_transfer` tag. #[derive(Debug, Clone)] #[non_exhaustive] pub struct OversizedTransferConfig { - /// Master gate. When `false` (default) the capability is neither advertised - /// nor activated, and the server does not learn a client's flag. + /// Master gate, `true` by default. When `false` the capability is neither + /// advertised nor activated, and the server does not learn a client's flag. pub enabled: bool, /// Serialized byte length at or above which the sender switches to oversized transfer. pub threshold: usize, @@ -87,7 +93,8 @@ pub struct OversizedTransferConfig { pub max_transfer_chunks: u64, /// Upper bound on concurrently active receiver-side transfers. pub max_concurrent_transfers: usize, - /// Hard timeout for an in-flight transfer (milliseconds). + /// Hard timeout for an in-flight transfer (milliseconds), measured from + /// admission. `0` disables the receiver-side watchdog. pub transfer_timeout_ms: u64, /// Maximum forward gap between the next expected chunk and an out-of-order /// chunk that will still be buffered. @@ -95,13 +102,19 @@ pub struct OversizedTransferConfig { /// Maximum number of buffered out-of-order chunks. pub max_out_of_order_chunks: usize, /// Timeout a sender waits for an `accept` frame before giving up (milliseconds). + /// + /// Used by the **client** transport only. The client is the sole party that + /// sends a `start` frame with an accept handshake and then waits for the + /// `accept`. On the **server** transport this field is inert: a server is + /// always the *receiver* of the handshake — it emits the `accept`, it never + /// waits for one — so its value is never read server-side. pub accept_timeout_ms: u64, } impl Default for OversizedTransferConfig { fn default() -> Self { Self { - enabled: false, + enabled: true, threshold: DEFAULT_OVERSIZED_THRESHOLD, chunk_size: DEFAULT_CHUNK_SIZE, max_transfer_bytes: DEFAULT_MAX_TRANSFER_BYTES, @@ -117,6 +130,9 @@ impl Default for OversizedTransferConfig { impl OversizedTransferConfig { /// An explicitly enabled config with all other knobs at their defaults. + /// + /// Redundant since `enabled` defaulted to `true` (kept for API + /// stability); equivalent to [`OversizedTransferConfig::default`]. pub fn enabled() -> Self { Self { enabled: true, @@ -187,7 +203,7 @@ impl OversizedTransferConfig { impl From<&OversizedTransferConfig> for TransferPolicy { /// Project the receiver-relevant knobs of an [`OversizedTransferConfig`] into - /// a [`TransferPolicy`] (D6 → receiver admission policy). + /// a [`TransferPolicy`] (the receiver admission policy). fn from(config: &OversizedTransferConfig) -> Self { TransferPolicy { max_transfer_bytes: config.max_transfer_bytes, diff --git a/src/transport/oversized_transfer/receiver.rs b/src/transport/oversized_transfer/receiver.rs index bc4b44f..8f8811f 100644 --- a/src/transport/oversized_transfer/receiver.rs +++ b/src/transport/oversized_transfer/receiver.rs @@ -5,11 +5,14 @@ //! and returns the reassembled [`JsonRpcMessage`] once a transfer completes and //! passes byte-length, SHA-256, and JSON-RPC validation. //! -//! This engine is **pure and synchronous**: it owns no timers. The hard -//! per-transfer watchdog (`transfer_timeout_ms`) and the sender-side -//! accept-waiter are added when the engine is wired into the transport. +//! This engine is **pure and synchronous**: it owns no live timers. The hard +//! per-transfer watchdog deadline (`transfer_timeout_ms`) is measured from +//! `start` admission and enforced by the owning transport calling +//! [`OversizedTransferReceiver::remove_expired`] on its sweep tick; the +//! sender-side accept-waiter lives in the transport. use std::collections::{BTreeMap, HashMap}; +use std::time::{Duration, Instant}; use serde_json::Value; @@ -23,7 +26,7 @@ use super::constants::{ DEFAULT_TRANSFER_TIMEOUT_MS, DIGEST_PREFIX, }; use super::errors::OversizedTransferError; -use super::frame::OversizedFrame; +use super::frame::{progress_token_string, OversizedFrame}; /// Receiver-side admission and out-of-order policy. /// @@ -41,8 +44,10 @@ pub struct TransferPolicy { pub max_out_of_order_window: u64, /// Maximum number of buffered out-of-order chunks. pub max_out_of_order_chunks: usize, - /// Hard per-transfer timeout (milliseconds). Reserved for the transport - /// watchdog; the pure engine does not enforce it. + /// Hard per-transfer timeout (milliseconds), measured from `start` + /// admission and never refreshed by chunk activity (TS parity). + /// Enforced by sweeping [`OversizedTransferReceiver::remove_expired`]; + /// `0` disables the watchdog. pub transfer_timeout_ms: u64, } @@ -72,6 +77,9 @@ struct ActiveTransfer { highest_observed_progress: u64, /// Chunk fragments keyed by the outer `progress` value (canonical index). chunks: BTreeMap, + /// When the `start` frame was admitted. The watchdog deadline is measured + /// from here and never refreshed (a hard cap, not an idle timer). + admitted_at: Instant, } impl ActiveTransfer { @@ -158,6 +166,10 @@ pub struct OversizedTransferReceiver { max_concurrent_transfers: usize, max_out_of_order_window: u64, max_out_of_order_chunks: usize, + /// Hard per-transfer deadline in milliseconds, from `start` admission. + /// `0` disables the watchdog: [`Self::remove_expired`] skips the sweep + /// entirely rather than expiring transfers instantly. + transfer_timeout_ms: u64, transfers: HashMap, } @@ -181,6 +193,7 @@ impl OversizedTransferReceiver { max_concurrent_transfers: policy.max_concurrent_transfers, max_out_of_order_window: policy.max_out_of_order_window, max_out_of_order_chunks: policy.max_out_of_order_chunks, + transfer_timeout_ms: policy.transfer_timeout_ms, transfers: HashMap::new(), } } @@ -190,6 +203,43 @@ impl OversizedTransferReceiver { self.transfers.len() } + /// Whether a transfer keyed by `token` is currently in flight. + /// + /// Lets the transport gate progress forwarding on tracked transfers, so a + /// late or orphan frame (e.g. after watchdog reaping) cannot keep a dead + /// request's timer alive. + pub fn is_tracking(&self, token: &str) -> bool { + self.transfers.contains_key(token) + } + + /// Reap transfers whose age since `start` admission exceeds the policy's + /// `transfer_timeout_ms`, returning the reaped tokens (for logging). + /// + /// The deadline is hard — never refreshed by chunk activity (TS parity): + /// liveness is the requester's idle timer; this sweep is the receiver's + /// memory bound. A `transfer_timeout_ms` of `0` disables the watchdog (no + /// sweep). Reaping is local-only — no abort frame is emitted; the peer's + /// own timeout covers the other side. The token slot is freed: a later + /// `start` re-using a reaped token is admitted as a fresh transfer, while + /// its late chunk/end frames are orphan-ignored. + pub fn remove_expired(&mut self) -> Vec { + if self.transfer_timeout_ms == 0 { + return Vec::new(); + } + let deadline = Duration::from_millis(self.transfer_timeout_ms); + let now = Instant::now(); + let mut reaped = Vec::new(); + self.transfers.retain(|token, transfer| { + if now.duration_since(transfer.admitted_at) > deadline { + reaped.push(token.clone()); + false + } else { + true + } + }); + reaped + } + /// Release all in-flight transfer state. pub fn clear(&mut self) { self.transfers.clear(); @@ -299,6 +349,7 @@ impl OversizedTransferReceiver { next_expected_chunk_progress: None, highest_observed_progress: progress, chunks: BTreeMap::new(), + admitted_at: Instant::now(), }, ); Ok(None) @@ -480,11 +531,7 @@ impl OversizedTransferReceiver { /// Coerce a `progressToken` value to a string (mirrors TS `String(token ?? '')`). fn token_to_string(value: Option<&Value>) -> String { - match value { - Some(Value::String(s)) => s.clone(), - Some(Value::Number(n)) => n.to_string(), - _ => String::new(), - } + value.and_then(progress_token_string).unwrap_or_default() } /// A non-empty token is required on every frame. @@ -631,7 +678,7 @@ mod tests { #[test] fn roundtrip_multibyte_payload() { - // Small chunks force boundaries inside multibyte runs (CEP-22 D4). + // Small chunks force boundaries inside multibyte UTF-8 runs. let message = sample_response(7, "héllo 🦀 wörld 日本語 ☃ même 🚀🚀"); let frames = build(&message, 5); @@ -774,6 +821,55 @@ mod tests { assert_eq!(receiver.active_transfer_count(), 0); } + /// An `accept` on the wrong progress slot is rejected by the receiver, so a + /// transport that wakes the sender's accept-waiter only on a successful + /// `process_frame` leaves the oneshot unfired — the sender stays blocked and + /// falls back to its accept-timeout → abort (see [`super`]'s sibling sender + /// test `missed_accept_returns_abort`). + /// + /// Scope: this pins the engine-level accept validation (`handle_accept` + /// requires `progress > start_progress`). The live *client* upload path wakes + /// its waiter on `cvm.frameType == "accept"` + a matching token alone (the + /// accept's slot is only meaningful to a reassembling receiver), so this models + /// the receiver/reassembly contract, not that path. + #[test] + fn invalid_accept_leaves_oneshot_unfired() { + use tokio::sync::oneshot; + + let mut receiver = OversizedTransferReceiver::new(); + receiver + .process_frame(&start_frame(TOKEN, START_PROGRESS, "sha256:abcd", 4, 1)) + .unwrap(); + + // The sender registers a oneshot before publishing `start`; a transport + // wakes it only once the receiver has accepted the accept frame. + let (accept_tx, mut accept_rx) = oneshot::channel::<()>(); + + // An accept on the start slot is invalid (it must advance past start). + let invalid_accept = OversizedFrame::Accept + .into_progress_notification(TOKEN, START_PROGRESS, None) + .unwrap(); + + // Fire-on-Ok: wake the waiter only if the receiver accepts the frame. + match receiver.process_frame(&invalid_accept) { + Ok(_) => { + let _ = accept_tx.send(()); + } + Err(error) => assert!(matches!(error, OversizedTransferError::Sequence(_))), + } + + // The accept was rejected, so the oneshot was never fired: still `Empty` + // (the sender — held alive here — has not been signalled). + assert!( + matches!( + accept_rx.try_recv(), + Err(oneshot::error::TryRecvError::Empty) + ), + "an invalid accept must not fire the sender's accept-waiter" + ); + assert_eq!(receiver.active_transfer_count(), 0); + } + // ── integrity ─────────────────────────────────────────────────── #[test] @@ -1080,4 +1176,121 @@ mod tests { serde_json::to_value(&message).unwrap() ); } + + // ── watchdog: admitted_at / remove_expired / is_tracking ──────────── + + fn watchdog_policy(transfer_timeout_ms: u64) -> TransferPolicy { + TransferPolicy { + transfer_timeout_ms, + ..TransferPolicy::default() + } + } + + /// Backdate a tracked transfer's admission so deadline checks are + /// deterministic (no sleeping in unit tests). + fn backdate_admission(receiver: &mut OversizedTransferReceiver, token: &str, ms: u64) { + receiver + .transfers + .get_mut(token) + .expect("transfer must be tracked") + .admitted_at -= Duration::from_millis(ms); + } + + #[test] + fn remove_expired_reaps_past_deadline_and_orphans_late_frames() { + let mut receiver = OversizedTransferReceiver::with_policy(watchdog_policy(50)); + let mut frames = build(&sample_response(1, "payload"), 4).into_ordered(); + let rest = frames.split_off(1); + receiver.process_frame(&frames[0]).unwrap(); + assert!(receiver.is_tracking(TOKEN)); + + backdate_admission(&mut receiver, TOKEN, 100); + let reaped = receiver.remove_expired(); + assert_eq!(reaped, vec![TOKEN.to_string()]); + assert!(!receiver.is_tracking(TOKEN)); + assert_eq!(receiver.active_transfer_count(), 0); + + // Late chunk/end frames of the reaped transfer are orphan-ignored: + // no error, and nothing is ever surfaced. + for frame in rest { + assert!(receiver.process_frame(&frame).unwrap().is_none()); + } + } + + #[test] + fn remove_expired_skips_unexpired_transfers() { + let mut receiver = OversizedTransferReceiver::with_policy(watchdog_policy(50)); + receiver + .process_frame(&start_frame(TOKEN, 1, "sha256:abcd", 4, 1)) + .unwrap(); + receiver + .process_frame(&start_frame("tok-stale", 1, "sha256:abcd", 4, 1)) + .unwrap(); + + backdate_admission(&mut receiver, "tok-stale", 100); + let reaped = receiver.remove_expired(); + assert_eq!(reaped, vec!["tok-stale".to_string()]); + assert!(receiver.is_tracking(TOKEN), "fresh transfer must survive"); + assert!(!receiver.is_tracking("tok-stale")); + } + + #[test] + fn remove_expired_zero_timeout_disables_watchdog() { + // 0 means "no watchdog" (sweep skipped), NOT instant expiry. + let mut receiver = OversizedTransferReceiver::with_policy(watchdog_policy(0)); + receiver + .process_frame(&start_frame(TOKEN, 1, "sha256:abcd", 4, 1)) + .unwrap(); + backdate_admission(&mut receiver, TOKEN, 200); + + assert!(receiver.remove_expired().is_empty()); + assert!(receiver.is_tracking(TOKEN)); + } + + #[test] + fn reaped_token_is_readmittable_as_fresh_transfer() { + // remove_expired frees the slot; a later `start` re-using the token is + // a fresh transfer (duplicate-start would error if state lingered), and + // it runs to completion. + let mut receiver = OversizedTransferReceiver::with_policy(watchdog_policy(50)); + let message = sample_response(7, "again"); + let mut first = build(&message, 4).into_ordered(); + first.truncate(2); // start + one chunk, then the sender stalls + for frame in &first { + receiver.process_frame(frame).unwrap(); + } + + backdate_admission(&mut receiver, TOKEN, 100); + assert_eq!(receiver.remove_expired(), vec![TOKEN.to_string()]); + + let reconstructed = run_to_completion(&mut receiver, build(&message, 4)); + assert_eq!( + serde_json::to_value(&reconstructed).unwrap(), + serde_json::to_value(&message).unwrap() + ); + assert!( + !receiver.is_tracking(TOKEN), + "completed transfer is released" + ); + } + + #[test] + fn is_tracking_reflects_transfer_lifecycle() { + let mut receiver = OversizedTransferReceiver::new(); + assert!(!receiver.is_tracking(TOKEN)); + + let frames = build(&sample_response(1, "lifecycle"), 4); + let ordered = frames.into_ordered(); + let (end, mid) = ordered.split_last().expect("frames are never empty"); + + for frame in mid { + receiver.process_frame(frame).unwrap(); + assert!(receiver.is_tracking(TOKEN), "tracked while in flight"); + } + receiver + .process_frame(end) + .unwrap() + .expect("end frame completes the transfer"); + assert!(!receiver.is_tracking(TOKEN), "released after completion"); + } } diff --git a/src/transport/oversized_transfer/sender.rs b/src/transport/oversized_transfer/sender.rs index e3dbb36..a649065 100644 --- a/src/transport/oversized_transfer/sender.rs +++ b/src/transport/oversized_transfer/sender.rs @@ -9,8 +9,8 @@ //! `prepare_mcp_message` + `publish_event` (registering a pending entry between //! the two), the server via `base.send_mcp_message`. Those signatures differ, so //! the publish step is injected as a closure and this module stays transport-free -//! (D11 / OD-5: there is no active `abort` frame in v1 — on a missed `accept` the -//! sender fails and cleans up locally, letting the peer's own timeout fire). +//! (there is no active `abort` frame in v1 — on a missed `accept` the sender +//! fails and cleans up locally, letting the peer's own timeout fire). use std::future::Future; use std::time::Duration; diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 251b79c..7455869 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -30,8 +30,9 @@ use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; use crate::transport::discovery_tags::learn_peer_capabilities; use crate::transport::oversized_transfer::{ - build_oversized_frames, resolve_safe_chunk_size, OversizedFrame, OversizedSenderOptions, - OversizedTransferConfig, OversizedTransferReceiver, TransferPolicy, ACCEPT_PROGRESS, + build_oversized_frames, progress_token_string, resolve_safe_chunk_size, OversizedFrame, + OversizedSenderOptions, OversizedTransferConfig, OversizedTransferReceiver, TransferPolicy, + ACCEPT_PROGRESS, }; const LOG_TARGET: &str = "contextvm_sdk::transport::server"; @@ -103,7 +104,7 @@ pub struct NostrServerTransportConfig { pub publish_relay_list: bool, /// Optional NIP-01 profile metadata (kind 0) to publish at startup. pub profile_metadata: Option, - /// CEP-22 oversized payload transfer configuration. Disabled by default. + /// CEP-22 oversized payload transfer configuration. Enabled by default. pub oversized_transfer: OversizedTransferConfig, } @@ -1076,6 +1077,35 @@ impl NostrServerTransport { }) } + /// CEP-22: one watchdog sweep over the per-peer reassembly engines. Reaps + /// transfers past their hard deadline — local-only (no abort frame is + /// emitted): the requester's own timeout fails the call, and late frames + /// are orphan-ignored — then drops now-empty receivers so long-gone peers + /// stop pinning LRU slots (admission recreates them on demand). + async fn sweep_oversized_receivers( + oversized_receiver: &Arc>>, + ) { + let mut receivers = oversized_receiver.write().await; + let mut empty_peers: Vec = Vec::new(); + for (peer, receiver) in receivers.iter_mut() { + for token in receiver.remove_expired() { + tracing::warn!( + target: LOG_TARGET, + client_pubkey = %peer, + token = %token, + "Oversized transfer reaped by watchdog" + ); + } + if receiver.active_transfer_count() == 0 { + empty_peers.push(peer.clone()); + } + } + // Keys collected first, popped after: never mutate mid-iteration. + for peer in empty_peers { + receivers.pop(&peer); + } + } + #[allow(clippy::too_many_arguments)] async fn event_loop( relay_pool: Arc, @@ -1097,6 +1127,15 @@ impl NostrServerTransport { ) { let mut notifications = relay_pool.notifications(); + // CEP-22: receiver-side watchdog sweep. Same clamp formula as the + // client's correlation sweep; the arm is disabled entirely when the + // feature is off or the deadline is 0 (no watchdog). + let watchdog_enabled = oversized_enabled && transfer_policy.transfer_timeout_ms != 0; + let sweep_interval = (Duration::from_millis(transfer_policy.transfer_timeout_ms) / 2) + .clamp(Duration::from_secs(1), Duration::from_secs(30)); + let mut sweep_timer = + tokio::time::interval_at(tokio::time::Instant::now() + sweep_interval, sweep_interval); + loop { let notification = tokio::select! { _ = cancel.cancelled() => { @@ -1106,6 +1145,10 @@ impl NostrServerTransport { ); break; } + _ = sweep_timer.tick(), if watchdog_enabled => { + Self::sweep_oversized_receivers(&oversized_receiver).await; + continue; + } result = notifications.recv() => { match result { Ok(n) => n, @@ -1372,7 +1415,7 @@ impl NostrServerTransport { let discovered = learn_peer_capabilities(&inner_tags); session.supports_encryption |= discovered.supports_encryption; session.supports_ephemeral_encryption |= discovered.supports_ephemeral_encryption; - // CEP-22 (OD-4): snapshot the flag BEFORE the learning gate mutates + // CEP-22: snapshot the flag BEFORE the learning gate mutates // it — the very `start` frame carries the client's support tag, so // without this snapshot the first transfer would never get an `accept`. let client_already_supported = session.supports_oversized_transfer; @@ -1382,7 +1425,7 @@ impl NostrServerTransport { // CEP-22: intercept oversized-transfer frames before request // correlation/dispatch. A disabled server forwards raw progress - // notifications as before (OD-6). + // notifications as before. if oversized_enabled { if let JsonRpcMessage::Notification(ref n) = mcp_msg { if OversizedTransferReceiver::is_oversized_frame(n) { @@ -1414,14 +1457,18 @@ impl NostrServerTransport { if let JsonRpcMessage::Request(ref req) = mcp_msg { let original_id = req.id.clone(); - // Extract progress token from _meta if present. + // Extract progress token from _meta if present. String or + // number (rmcp issues numbers): without numeric acceptance + // the response eligibility gate in `send_response` never + // opens for rmcp clients. Normalized to its stringified form + // for routing and frame addressing (the wire keeps emitting + // string tokens). let progress_token = req .params .as_ref() .and_then(|p| p.get("_meta")) .and_then(|m| m.get("progressToken")) - .and_then(|t| t.as_str()) - .map(String::from); + .and_then(progress_token_string); // Duplicate into session fields (kept for backward compat). session @@ -1483,7 +1530,7 @@ impl NostrServerTransport { /// CEP-22 server inbound: process one oversized-transfer frame. /// /// Emits an `accept` on the opening frame when the client's support is not yet - /// known (OD-4), feeds the frame to this peer's reassembler, and — on the + /// known, feeds the frame to this peer's reassembler, and — on the /// `end` frame — registers a response route and dispatches the reassembled /// request as a synthetic [`IncomingRequest`] (keyed by the end frame's real /// carrying event id, collision-free against the reserved sentinels). @@ -1506,12 +1553,13 @@ impl NostrServerTransport { tx: &tokio::sync::mpsc::UnboundedSender, ) { // The outer progressToken keys the transfer (needed for accept + route). + // String or number — defensive only: every known sender stringifies + // tokens into frames. let token = frame .params .as_ref() .and_then(|p| p.get("progressToken")) - .and_then(|t| t.as_str()) - .map(String::from); + .and_then(progress_token_string); // 1. Emit `accept` on the opening frame if support is not yet known. let is_start = frame @@ -1598,7 +1646,7 @@ impl NostrServerTransport { is_encrypted, }); } - // D11: clean up locally, let the peer's own timeout fire. + // Clean up locally, let the peer's own timeout fire. Err(error) => { tracing::warn!( target: LOG_TARGET, @@ -1630,18 +1678,21 @@ impl NostrServerTransport { Err(_) => return, }; let event_id_parsed = EventId::from_hex(start_event_id).unwrap_or(EventId::all_zeros()); - let accept = - match OversizedFrame::Accept.into_progress_notification(token, ACCEPT_PROGRESS, None) { - Ok(n) => JsonRpcMessage::Notification(n), - Err(error) => { - tracing::error!( - target: LOG_TARGET, - error = %error, - "Failed to build oversized-transfer accept frame" - ); - return; - } - }; + let accept = match OversizedFrame::Accept.into_progress_notification( + token, + ACCEPT_PROGRESS, + Some("oversized request accepted"), + ) { + Ok(n) => JsonRpcMessage::Notification(n), + Err(error) => { + tracing::error!( + target: LOG_TARGET, + error = %error, + "Failed to build oversized-transfer accept frame" + ); + return; + } + }; let tags = BaseTransport::create_response_tags(&client_pk, &event_id_parsed); let base = BaseTransport { relay_pool: Arc::clone(relay_pool), @@ -2278,14 +2329,15 @@ mod tests { } #[test] - fn test_oversized_disabled_by_default() { + fn test_oversized_enabled_by_default() { let config = NostrServerTransportConfig::default(); - assert!(!config.oversized_transfer.enabled); + assert!(config.oversized_transfer.enabled); } #[test] fn test_oversized_support_tags_helper() { - let mut config = NostrServerTransportConfig::default(); + // Start from an explicit opt-out: the default is now enabled. + let mut config = NostrServerTransportConfig::default().with_oversized_enabled(false); assert!(oversized_support_tags(&config).is_empty()); config.oversized_transfer.enabled = true; let names = first_tag_values(&oversized_support_tags(&config)); diff --git a/tests/conformance_cep22_wire_format.rs b/tests/conformance_cep22_wire_format.rs new file mode 100644 index 0000000..5fa8c1c --- /dev/null +++ b/tests/conformance_cep22_wire_format.rs @@ -0,0 +1,323 @@ +//! Conformance tests: CEP-22 oversized-transfer wire format. +//! +//! A CEP-22 frame is an MCP `notifications/progress` JSON-RPC notification whose +//! `params.cvm` object carries the transfer envelope. These tests pin the exact +//! on-wire JSON — method, progress-slot layout, camelCase field names, the +//! `oversized-transfer` type tag, and the `sha256:` digest format — so the +//! serialization cannot drift from the spec and stays byte-compatible with the +//! TypeScript SDK, which emits the identical shape. +//! +//! Frames are serialized through `JsonRpcMessage` (the type both transports +//! publish, `#[serde(untagged)]`), so the asserted JSON is exactly what lands in +//! a kind-25910 event's `content`. No transport or I/O — pure serialization. + +use serde_json::Value; + +use contextvm_sdk::transport::oversized_transfer::{ + build_oversized_frames, sha256_digest, BuiltOversizedFrames, OversizedFrame, + OversizedSenderOptions, ACCEPT_PROGRESS, START_PROGRESS, +}; +use contextvm_sdk::{JsonRpcMessage, JsonRpcNotification}; + +const TOKEN: &str = "tok-1"; + +// ── helpers ─────────────────────────────────────────────────────────────────── + +/// Serialize a frame exactly as a transport publishes it. `JsonRpcMessage` is +/// `#[serde(untagged)]`, so this is the literal kind-25910 `content`. +fn wire(notif: &JsonRpcNotification) -> Value { + serde_json::to_value(JsonRpcMessage::Notification(notif.clone())) + .expect("frame must serialize to JSON") +} + +/// The `params.cvm` object of a frame's wire form. +fn cvm(notif: &JsonRpcNotification) -> Value { + wire(notif)["params"]["cvm"].clone() +} + +/// The `params.progress` slot of a frame's wire form. +fn progress(notif: &JsonRpcNotification) -> Option { + wire(notif)["params"]["progress"].as_u64() +} + +/// The canonical 3-chunk transfer of `"hello world"` (11 bytes, chunk size 4). +fn three_chunk_transfer(handshake: bool) -> BuiltOversizedFrames { + let opts = OversizedSenderOptions::new(TOKEN) + .with_chunk_size(4) + .with_accept_handshake(handshake); + build_oversized_frames("hello world", &opts).expect("build frames") +} + +/// A standalone `accept` frame on its reserved slot (the server emits this; the +/// codec's `build_oversized_frames` lays out start/chunk/end but never accept). +fn accept_frame() -> JsonRpcNotification { + OversizedFrame::Accept + .into_progress_notification(TOKEN, ACCEPT_PROGRESS, None) + .expect("build accept frame") +} + +/// A standalone `abort` frame. +fn abort_frame() -> JsonRpcNotification { + OversizedFrame::Abort { + reason: Some("peer cancelled".to_string()), + } + .into_progress_notification(TOKEN, 9, None) + .expect("build abort frame") +} + +// ── frame envelope ────────────────────────────────────────────────────────── + +#[test] +fn frame_is_a_notifications_progress_notification() { + let frames = three_chunk_transfer(false); + let w = wire(&frames.start); + + assert_eq!( + w["jsonrpc"], + Value::String("2.0".to_string()), + "frame must be JSON-RPC 2.0" + ); + assert_eq!( + w["method"], + Value::String("notifications/progress".to_string()), + "frame method must be notifications/progress" + ); + + let params = &w["params"]; + assert!(params.is_object(), "params must be an object"); + assert_eq!( + params["progressToken"], + Value::String(TOKEN.to_string()), + "params must carry the progressToken" + ); + assert!( + params["progress"].is_number(), + "params.progress must be a number" + ); + assert!(params["cvm"].is_object(), "params.cvm must be an object"); +} + +// ── cvm.type ────────────────────────────────────────────────────────────────── + +#[test] +fn every_frame_carries_cvm_type_oversized_transfer() { + let frames = three_chunk_transfer(false); + let accept = accept_frame(); + let abort = abort_frame(); + + for notif in [ + &frames.start, + &frames.chunks[0], + &frames.end, + &accept, + &abort, + ] { + assert_eq!( + cvm(notif)["type"], + Value::String("oversized-transfer".to_string()), + "every cvm object must carry type=oversized-transfer" + ); + } +} + +// ── cvm.frameType ───────────────────────────────────────────────────────────── + +#[test] +fn cvm_frame_type_discriminates_each_variant_in_lowercase() { + let frames = three_chunk_transfer(false); + + assert_eq!( + cvm(&frames.start)["frameType"], + Value::String("start".into()) + ); + assert_eq!( + cvm(&accept_frame())["frameType"], + Value::String("accept".into()) + ); + assert_eq!( + cvm(&frames.chunks[0])["frameType"], + Value::String("chunk".into()) + ); + assert_eq!(cvm(&frames.end)["frameType"], Value::String("end".into())); + assert_eq!( + cvm(&abort_frame())["frameType"], + Value::String("abort".into()) + ); + + // The discriminator key is camelCase `frameType`, never snake_case. + let start_cvm = cvm(&frames.start); + let obj = start_cvm.as_object().unwrap(); + assert!( + obj.contains_key("frameType"), + "must use camelCase frameType" + ); + assert!( + !obj.contains_key("frame_type"), + "snake_case frame_type must not appear on the wire" + ); +} + +// ── start frame fields ──────────────────────────────────────────────────────── + +#[test] +fn start_frame_fields_are_camelcase_and_correctly_typed() { + // "hello world" is 11 bytes; chunk size 4 → 3 chunks. + let c = cvm(&three_chunk_transfer(false).start); + + assert_eq!( + c["completionMode"], + Value::String("render".to_string()), + "v1 completion mode must be render" + ); + assert_eq!( + c["totalBytes"].as_u64(), + Some(11), + "totalBytes must equal the payload's UTF-8 byte length" + ); + assert_eq!( + c["totalChunks"].as_u64(), + Some(3), + "totalChunks must equal the chunk count" + ); + assert!( + c["digest"].as_str().unwrap().starts_with("sha256:"), + "digest must carry the sha256: prefix" + ); + + // Field names are camelCase, never snake_case. + let obj = c.as_object().unwrap(); + for camel in ["completionMode", "digest", "totalBytes", "totalChunks"] { + assert!( + obj.contains_key(camel), + "start cvm missing camelCase key {camel}" + ); + } + for snake in ["completion_mode", "total_bytes", "total_chunks"] { + assert!( + !obj.contains_key(snake), + "snake_case key {snake} must not appear on the wire" + ); + } +} + +// ── chunk frame fields ──────────────────────────────────────────────────────── + +#[test] +fn chunk_frames_carry_data_that_reconstructs_the_payload() { + let frames = three_chunk_transfer(false); + + let mut reassembled = String::new(); + for chunk in &frames.chunks { + let data = cvm(chunk)["data"] + .as_str() + .expect("chunk cvm.data must be a string") + .to_string(); + reassembled.push_str(&data); + } + assert_eq!( + reassembled, "hello world", + "concatenated chunk data must reproduce the exact payload" + ); +} + +// ── progress slots ──────────────────────────────────────────────────────────── + +#[test] +fn canonical_progress_slots_match_spec() { + assert_eq!(START_PROGRESS, 1, "start frame occupies progress slot 1"); + assert_eq!(ACCEPT_PROGRESS, 2, "accept frame occupies progress slot 2"); +} + +#[test] +fn progress_slots_without_handshake() { + // start=1; with no accept, chunks reuse the reserved slot 2; end = start + N + 1. + let frames = three_chunk_transfer(false); + assert_eq!(frames.chunks.len(), 3); + + assert_eq!(progress(&frames.start), Some(1)); + assert_eq!(progress(&frames.chunks[0]), Some(2)); + assert_eq!(progress(&frames.chunks[1]), Some(3)); + assert_eq!(progress(&frames.chunks[2]), Some(4)); + assert_eq!( + progress(&frames.end), + Some(5), + "end = start(1) + chunks(3) + 1" + ); +} + +#[test] +fn progress_slots_with_handshake() { + // start=1; accept reserved at slot 2; first chunk shifts to 3; end follows. + let frames = three_chunk_transfer(true); + assert_eq!(frames.chunks.len(), 3); + + assert_eq!(progress(&frames.start), Some(1)); + assert_eq!(progress(&accept_frame()), Some(2)); + assert_eq!(progress(&frames.chunks[0]), Some(3)); + assert_eq!(progress(&frames.chunks[1]), Some(4)); + assert_eq!(progress(&frames.chunks[2]), Some(5)); + assert_eq!(progress(&frames.end), Some(6), "end follows the last chunk"); +} + +// ── digest format ───────────────────────────────────────────────────────────── + +#[test] +fn digest_is_sha256_prefix_plus_lowercase_hex() { + let digest = cvm(&three_chunk_transfer(false).start)["digest"] + .as_str() + .unwrap() + .to_string(); + + assert!(digest.starts_with("sha256:"), "must start with sha256:"); + let hex = &digest["sha256:".len()..]; + assert_eq!(hex.len(), 64, "SHA-256 hex must be 64 characters"); + assert!( + hex.chars() + .all(|ch| ch.is_ascii_hexdigit() && !ch.is_ascii_uppercase()), + "digest hex must be lowercase" + ); +} + +#[test] +fn digest_is_over_the_full_payload_not_per_chunk() { + // Known-answer vector: SHA-256("abc"). Even fragmented into 3 single-byte + // chunks, the start digest is the hash of the WHOLE payload. + let abc = build_oversized_frames( + "abc", + &OversizedSenderOptions::new(TOKEN).with_chunk_size(1), + ) + .expect("build frames"); + assert_eq!( + abc.chunks.len(), + 3, + "chunk size 1 must yield 3 chunks for abc" + ); + assert_eq!( + cvm(&abc.start)["digest"].as_str(), + Some("sha256:ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"), + "digest must be SHA-256 of the full payload \"abc\", independent of chunking" + ); + + // For an arbitrary multi-chunk payload, the start digest equals the hash of + // the payload reconstructed from the chunk data (i.e. the full message). + let payload = "the quick brown fox jumps"; + let frames = build_oversized_frames( + payload, + &OversizedSenderOptions::new(TOKEN).with_chunk_size(5), + ) + .expect("build frames"); + let reconstructed: String = frames + .chunks + .iter() + .map(|c| cvm(c)["data"].as_str().unwrap().to_string()) + .collect(); + assert_eq!( + reconstructed, payload, + "chunks must reconstruct the payload" + ); + assert_eq!( + cvm(&frames.start)["digest"].as_str(), + Some(sha256_digest(payload).as_str()), + "digest must hash the full payload" + ); +} diff --git a/tests/e2e_happy_path.rs b/tests/e2e_happy_path.rs index 505470e..a6003ca 100644 --- a/tests/e2e_happy_path.rs +++ b/tests/e2e_happy_path.rs @@ -318,14 +318,14 @@ async fn run_e2e_scenario(mode: EncryptionMode) { // ── Tests ───────────────────────────────────────────────────────────────── -// NOTE: EncryptionMode::Disabled is intentionally NOT tested here. -// MockRelayPool broadcasts all events to all receivers, including the publisher. -// In Disabled mode (plaintext kind 25910), the server receives its own responses -// and the RMCP handler rejects them. In encrypted modes, the server naturally -// can't decrypt events gift-wrapped for the client, so they're filtered out. -// Real Nostr relays do not echo events back to the publisher, so this is a -// mock-only limitation. Disabled mode is tested at the transport level in -// tests/transport_integration.rs. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn e2e_happy_path_encryption_disabled() { + // Plaintext full-stack works since MockRelayPool started respecting + // per-subscription filters (commit a0f9413): the server's own responses + // are p-tagged to the client, so they no longer echo back into the + // server's subscription as they did with the old broadcast-to-all mock. + run_e2e_scenario(EncryptionMode::Disabled).await; +} #[tokio::test(flavor = "multi_thread", worker_threads = 2)] async fn e2e_happy_path_encryption_optional() { diff --git a/tests/oversized_timeout_e2e.rs b/tests/oversized_timeout_e2e.rs new file mode 100644 index 0000000..4cf5996 --- /dev/null +++ b/tests/oversized_timeout_e2e.rs @@ -0,0 +1,1045 @@ +//! CEP-22: rmcp-level oversized-transfer timeout e2e tests. +//! +//! Covers progress-aware idle/max-total timeout semantics, stripped-progress +//! forwarding with token-type restoration, watchdog reaping, and the +//! default-on roundtrip. +//! +//! Declared in `Cargo.toml` with `required-features = ["rmcp", "test-utils"]` +//! (same as `e2e_happy_path`) so plain `cargo test` skips it and stays green. + +use std::sync::Arc; +use std::time::Duration; + +use async_trait::async_trait; +use contextvm_sdk::core::constants::CTXVM_MESSAGES_KIND; +use contextvm_sdk::core::types::EncryptionMode; +use contextvm_sdk::relay::mock::MockRelayPool; +use contextvm_sdk::transport::base::BaseTransport; +use contextvm_sdk::transport::client::{NostrClientTransport, NostrClientTransportConfig}; +use contextvm_sdk::transport::oversized_transfer::{ + build_oversized_frames, OversizedFrame, OversizedSenderOptions, OversizedTransferConfig, +}; +use contextvm_sdk::transport::server::{NostrServerTransport, NostrServerTransportConfig}; +use contextvm_sdk::{ + progress_aware_options, JsonRpcMessage, JsonRpcNotification, JsonRpcRequest, JsonRpcResponse, + PeerRequestOptionsExt, RelayPoolTrait, +}; +use nostr_sdk::prelude::*; +use rmcp::handler::server::router::tool::ToolRouter; +use rmcp::handler::server::wrapper::Parameters; +use rmcp::model::{ + CallToolRequestParams, CallToolResult, Content, ErrorData, Implementation, RawContent, + ServerCapabilities, +}; +use rmcp::service::ServiceError; +use rmcp::{schemars, tool, tool_handler, tool_router, ClientHandler, ServerHandler, ServiceExt}; + +// ── harness ────────────────────────────────────────────────────────────────── + +/// Let spawned event loops call `notifications()` before we publish anything. +async fn let_event_loops_start() { + tokio::time::sleep(Duration::from_millis(10)).await; +} + +/// A started client transport over `client_pool` with the given config — plus +/// its message receiver. +async fn start_client_with( + client_pool: MockRelayPool, + config: NostrClientTransportConfig, +) -> ( + NostrClientTransport, + tokio::sync::mpsc::UnboundedReceiver, +) { + let mut client = NostrClientTransport::with_relay_pool( + config, + Arc::new(client_pool) as Arc, + ) + .await + .expect("create client transport"); + let rx = client.take_message_receiver().expect("client rx"); + client.start().await.expect("client start"); + let_event_loops_start().await; + (client, rx) +} + +/// [`start_client_with`] for the common case: plaintext, default timeouts, +/// the given oversized config. +async fn start_client( + client_pool: MockRelayPool, + server_pubkey: &PublicKey, + oversized: OversizedTransferConfig, +) -> ( + NostrClientTransport, + tokio::sync::mpsc::UnboundedReceiver, +) { + start_client_with( + client_pool, + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized), + ) + .await +} + +/// A plaintext `BaseTransport` over the (greybox) server's pool, used to +/// hand-publish frames to the client. +fn greybox_server_base(server_pool: &Arc) -> BaseTransport { + BaseTransport { + relay_pool: Arc::clone(server_pool) as Arc, + encryption_mode: EncryptionMode::Disabled, + is_connected: true, + } +} + +/// Publish one frame as a plaintext kind-25910 event with the given tags. +async fn publish_frame( + base: &BaseTransport, + recipient: &PublicKey, + tags: &[Tag], + frame: JsonRpcNotification, +) { + base.send_mcp_message( + &JsonRpcMessage::Notification(frame), + recipient, + CTXVM_MESSAGES_KIND, + tags.to_vec(), + Some(false), + None, + ) + .await + .expect("publish frame"); +} + +/// Poll the shared store until an event matching `pred` lands; return its id. +async fn poll_for_event( + pool: &MockRelayPool, + what: &str, + pred: impl Fn(&Event) -> bool, +) -> EventId { + for _ in 0..200 { + if let Some(event) = pool + .stored_events() + .await + .iter() + .find(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND) && pred(e)) + { + return event.id; + } + tokio::time::sleep(Duration::from_millis(10)).await; + } + panic!("{what} never reached the relay store"); +} + +/// Count stored kind-25910 events carrying an oversized `cvm` frame. +async fn count_oversized_frames(pool: &MockRelayPool) -> usize { + pool.stored_events() + .await + .iter() + .filter(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND)) + .filter(|e| { + serde_json::from_str::(&e.content) + .ok() + .is_some_and(|v| v.get("params").and_then(|p| p.get("cvm")).is_some()) + }) + .count() +} + +/// `true` when the event carries an oversized frame of the given `frameType`. +fn is_frame_of_type(event: &Event, frame_type: &str) -> bool { + serde_json::from_str::(&event.content) + .ok() + .and_then(|v| { + v.get("params") + .and_then(|p| p.get("cvm")) + .and_then(|c| c.get("frameType")) + .and_then(|f| f.as_str().map(|f| f == frame_type)) + }) + .unwrap_or(false) +} + +/// Receive the next client message within `ms`, panicking on timeout/close. +async fn recv_within( + rx: &mut tokio::sync::mpsc::UnboundedReceiver, + ms: u64, + what: &str, +) -> JsonRpcMessage { + tokio::time::timeout(Duration::from_millis(ms), rx.recv()) + .await + .unwrap_or_else(|_| panic!("timed out waiting for {what}")) + .expect("client channel closed") +} + +/// Drain client messages for up to `ms`, returning the first *response* and +/// skipping stripped progress forwards. `None` when the window closes first. +async fn try_recv_response( + rx: &mut tokio::sync::mpsc::UnboundedReceiver, + ms: u64, +) -> Option { + let deadline = tokio::time::Instant::now() + Duration::from_millis(ms); + loop { + match tokio::time::timeout_at(deadline, rx.recv()).await { + Err(_) => return None, + Ok(None) => panic!("client channel closed"), + Ok(Some(msg)) if msg.is_response() => return Some(msg), + Ok(Some(_)) => continue, + } + } +} + +/// Assert `msg` is a stripped progress forward: right method, token restored +/// to `expected_token`, the expected `progress` slot, and no `cvm` payload. +fn assert_stripped_forward( + msg: JsonRpcMessage, + expected_token: &serde_json::Value, + expected_progress: u64, +) { + let JsonRpcMessage::Notification(n) = msg else { + panic!("expected a stripped progress notification"); + }; + assert_eq!(n.method, "notifications/progress"); + let params = n.params.expect("forwarded progress has params"); + assert_eq!( + ¶ms["progressToken"], expected_token, + "token must be restored to the original JSON value, got {params}" + ); + assert_eq!(params["progress"], serde_json::json!(expected_progress)); + assert!( + params.get("cvm").is_none(), + "cvm payload must be stripped, got {params}" + ); +} + +// ── rmcp full-stack fixtures ───────────────────────────────────────────────── + +/// Wraps a pool so every publish lands `publish_delay` apart — deterministic +/// inter-frame gaps for an oversized response (à la `transport_integration`'s +/// `TestRelayPool::with_publish_delay`). +struct DelayedRelayPool { + inner: Arc, + publish_delay: Duration, +} + +#[async_trait] +impl RelayPoolTrait for DelayedRelayPool { + async fn connect(&self, relay_urls: &[String]) -> contextvm_sdk::Result<()> { + self.inner.connect(relay_urls).await + } + + async fn disconnect(&self) -> contextvm_sdk::Result<()> { + self.inner.disconnect().await + } + + async fn publish_event(&self, event: &Event) -> contextvm_sdk::Result { + tokio::time::sleep(self.publish_delay).await; + self.inner.publish_event(event).await + } + + async fn publish(&self, builder: EventBuilder) -> contextvm_sdk::Result { + tokio::time::sleep(self.publish_delay).await; + self.inner.publish(builder).await + } + + async fn sign(&self, builder: EventBuilder) -> contextvm_sdk::Result { + self.inner.sign(builder).await + } + + async fn signer(&self) -> contextvm_sdk::Result> { + self.inner.signer().await + } + + fn notifications(&self) -> tokio::sync::broadcast::Receiver { + self.inner.notifications() + } + + async fn public_key(&self) -> contextvm_sdk::Result { + self.inner.public_key().await + } + + async fn subscribe(&self, filters: Vec) -> contextvm_sdk::Result<()> { + self.inner.subscribe(filters).await + } + + async fn publish_to( + &self, + urls: &[String], + builder: EventBuilder, + ) -> contextvm_sdk::Result { + self.inner.publish_to(urls, builder).await + } + + async fn fetch_events( + &self, + filters: Vec, + timeout: Duration, + ) -> contextvm_sdk::Result> { + self.inner.fetch_events(filters, timeout).await + } +} + +#[derive(Debug, serde::Deserialize, schemars::JsonSchema)] +struct BigParams { + len: usize, +} + +/// rmcp server with one tool: `big(len)` returns a `len`-byte text, driving +/// the response over the oversized threshold on demand. +#[derive(Clone)] +struct BigServer { + tool_router: ToolRouter, +} + +impl BigServer { + fn new() -> Self { + Self { + tool_router: Self::tool_router(), + } + } +} + +#[tool_router] +impl BigServer { + #[tool(description = "Return a text payload of `len` bytes")] + fn big( + &self, + Parameters(BigParams { len }): Parameters, + ) -> Result { + Ok(CallToolResult::success(vec![Content::text( + "B".repeat(len), + )])) + } +} + +#[tool_handler] +impl ServerHandler for BigServer { + fn get_info(&self) -> rmcp::model::ServerInfo { + rmcp::model::ServerInfo::new(ServerCapabilities::builder().enable_tools().build()) + .with_server_info(Implementation::new("oversized-e2e-server", "0.1.0")) + } +} + +#[derive(Clone, Default)] +struct DemoClient; +impl ClientHandler for DemoClient {} + +fn first_text(result: &CallToolResult) -> String { + result + .content + .iter() + .find_map(|c| match &c.raw { + RawContent::Text(t) => Some(t.text.clone()), + _ => None, + }) + .unwrap_or_default() +} + +fn call_params(name: &'static str, args: serde_json::Value) -> CallToolRequestParams { + let mut params = CallToolRequestParams::new(name); + if let Ok(v) = serde_json::from_value(args) { + params = params.with_arguments(v); + } + params +} + +/// Greybox: wait for the rmcp client's `tools/call` request event; return its +/// id (for response e-tagging) and its `_meta.progressToken` in wire-string +/// form (rmcp stamps JSON numbers; frames carry the stringified token). +async fn wait_for_rmcp_request(pool: &MockRelayPool) -> (EventId, String) { + for _ in 0..500 { + for event in pool.stored_events().await { + if event.kind != Kind::Custom(CTXVM_MESSAGES_KIND) { + continue; + } + let Ok(v) = serde_json::from_str::(&event.content) else { + continue; + }; + if v.get("method").and_then(|m| m.as_str()) != Some("tools/call") { + continue; + } + let token = match v + .get("params") + .and_then(|p| p.get("_meta")) + .and_then(|m| m.get("progressToken")) + { + Some(serde_json::Value::Number(n)) => n.to_string(), + Some(serde_json::Value::String(s)) => s.clone(), + _ => continue, + }; + return (event.id, token); + } + tokio::time::sleep(Duration::from_millis(10)).await; + } + panic!("rmcp tools/call request never reached the relay store"); +} + +/// Assert the requester published a `notifications/cancelled` carrying +/// `reason` (the fork's timeout-cancel publication). +async fn assert_cancelled_with_reason(pool: &MockRelayPool, reason: &str) { + for _ in 0..200 { + for event in pool.stored_events().await { + if event.kind != Kind::Custom(CTXVM_MESSAGES_KIND) { + continue; + } + let Ok(v) = serde_json::from_str::(&event.content) else { + continue; + }; + if v.get("method").and_then(|m| m.as_str()) == Some("notifications/cancelled") + && v.get("params") + .and_then(|p| p.get("reason")) + .and_then(|r| r.as_str()) + == Some(reason) + { + return; + } + } + tokio::time::sleep(Duration::from_millis(10)).await; + } + panic!("no notifications/cancelled with reason {reason:?} observed"); +} + +/// Greybox harness for the stalled/trickle timeout tests: a stateless rmcp +/// client (initialize emulated locally, so the test-driven "server" only ever +/// sees `tools/call`), with the +/// `call_tool_with_options` future spawned and timed from issue to settle. +async fn spawn_greybox_call( + client_pool: MockRelayPool, + server_pubkey: &PublicKey, + idle: Duration, + max_total: Duration, +) -> tokio::task::JoinHandle<(Result, Duration)> { + let client_transport = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_stateless(true) + .with_oversized_transfer(OversizedTransferConfig::enabled()), + Arc::new(client_pool) as Arc, + ) + .await + .expect("create client transport"); + + let client = DemoClient + .serve(client_transport) + .await + .expect("client init (stateless)"); + + tokio::spawn(async move { + let started = tokio::time::Instant::now(); + let result = client + .peer() + .call_tool_with_options( + call_params("big", serde_json::json!({ "len": 1 })), + progress_aware_options(idle, max_total), + ) + .await; + // Keep the running service alive until the call settles. + drop(client); + (result, started.elapsed()) + }) +} + +// ── harness smoke test ─────────────────────────────────────────────────────── + +/// Smoke test pinning the target's harness wiring: feature gates plus a linked +/// mock relay pair with distinct signing identities. +#[test] +fn harness_mock_relay_pair_is_linked() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + assert_ne!( + client_pool.mock_public_key(), + server_pool.mock_public_key(), + "paired mock pools must have distinct signing identities" + ); +} + +// ── stripped-progress forwarding ───────────────────────────────────────────── + +/// Inbound start/chunk frames of an oversized response are forwarded to the +/// local consumer as stripped progress notifications whose `progressToken` is +/// restored to the JSON **number** recorded at send time (the wire carries the +/// stringified token, as every real sender emits); the `end` frame yields only +/// the reassembled response. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_progress_token_restored() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let client_pubkey = client_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let (client, mut client_rx) = start_client( + client_pool, + &server_pubkey, + OversizedTransferConfig::enabled(), + ) + .await; + + // Request with the JSON number 7 as its token — the rmcp shape. The + // transport records the original keyed by "7". Small request → single event. + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("e4-1"), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ "_meta": { "progressToken": 7 } })), + }); + client.send(&request).await.expect("send request"); + + // Greybox server: pick up the request event for response correlation. + let request_event_id = poll_for_event(&server_pool, "request event", |e| { + serde_json::from_str::(&e.content) + .ok() + .is_some_and(|v| v.get("method").and_then(|m| m.as_str()) == Some("tools/call")) + }) + .await; + + // A 3-chunk response whose frames carry the realistic WIRE-STRING token + // "7" (`into_progress_notification` stringifies; TS does the same). + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("e4-1"), + result: serde_json::json!({ "blob": "Z".repeat(90) }), + }); + let serialized = serde_json::to_string(&response).unwrap(); + let frames = build_oversized_frames( + &serialized, + &OversizedSenderOptions::new("7").with_chunk_size(serialized.len().div_ceil(3)), + ) + .unwrap(); + assert_eq!(frames.chunks.len(), 3, "harness wants exactly 3 chunks"); + + let base = greybox_server_base(&server_pool); + let tags = BaseTransport::create_response_tags(&client_pubkey, &request_event_id); + for frame in frames.into_ordered() { + publish_frame(&base, &client_pubkey, &tags, frame).await; + } + + // Forward scope: start + each chunk (progress slots 1..=4, no handshake), + // each restored to Number(7) — a verbatim wire clone would surface + // String("7") and fail here. + for expected_progress in 1u64..=4 { + let msg = recv_within(&mut client_rx, 1000, "stripped progress forward").await; + assert_stripped_forward(msg, &serde_json::json!(7), expected_progress); + } + + // The end frame yields exactly the reassembled response… + let msg = recv_within(&mut client_rx, 1000, "reassembled response").await; + assert!(msg.is_response()); + assert_eq!(msg.id(), Some(&serde_json::json!("e4-1"))); + + let extra = tokio::time::timeout(Duration::from_millis(150), client_rx.recv()).await; + assert!( + extra.is_err(), + "no extra forward expected for the end frame" + ); +} + +/// The server's `accept` for a client upload forwards exactly one stripped +/// progress notification (re-arming the requester's idle timer for the +/// response-wait phase), with the original JSON-number token restored from the +/// recorded value, and the blocked oversized send completes. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn accept_frame_forwards_one_progress_reset() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let client_pubkey = client_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + // Low threshold so a ~2 KB request fragments; server support is unknown + // (no discovery yet) so the send blocks on the accept handshake. + let (client, mut client_rx) = start_client( + client_pool, + &server_pubkey, + OversizedTransferConfig::enabled() + .with_threshold(600) + .with_chunk_size(600), + ) + .await; + let client = Arc::new(client); + + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("e5-1"), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ + "_meta": { "progressToken": 8 }, + "blob": "Q".repeat(2000), + })), + }); + let send_task = { + let client = Arc::clone(&client); + tokio::spawn(async move { client.send(&request).await }) + }; + + // Greybox server: wait for the start frame, echo `accept` e-tagged to it. + // The wire token is the stringified echo — exactly what a real server + // emits (`into_progress_notification`). + let start_event_id = poll_for_event(&server_pool, "start frame", |e| { + is_frame_of_type(e, "start") + }) + .await; + let accept = OversizedFrame::Accept + .into_progress_notification("8", 2, None) + .expect("build accept frame"); + let tags = BaseTransport::create_response_tags(&client_pubkey, &start_event_id); + publish_frame( + &greybox_server_base(&server_pool), + &client_pubkey, + &tags, + accept, + ) + .await; + + // The blocked send unblocks and completes the upload. + send_task + .await + .expect("send task join") + .expect("oversized send completes after accept"); + + // Exactly one stripped forward surfaced for the accept (slot 2), token + // restored to the original JSON number. + let msg = recv_within(&mut client_rx, 1000, "accept progress forward").await; + assert_stripped_forward(msg, &serde_json::json!(8), 2); + + let extra = tokio::time::timeout(Duration::from_millis(150), client_rx.recv()).await; + assert!( + extra.is_err(), + "exactly one forward expected for the accept handshake" + ); +} + +// ── receiver-side watchdog ─────────────────────────────────────────────────── + +/// The client watchdog reaps a transfer stalled past its hard deadline; the +/// late remainder of the transfer is orphan-ignored (nothing delivered), and a +/// fresh transfer re-using the reaped token completes — proving the slot was +/// actually freed (duplicate-`start` would error if state lingered). +/// +/// Timing: 200 ms deadline, 1 s sweep tick (correlation TTL 2 s → clamp +/// floor), 3 s stall = 3 sweep ticks and 15× the deadline. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn watchdog_reaps_stalled_inbound_transfer_client() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let client_pubkey = client_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let (_client, mut client_rx) = start_client_with( + client_pool, + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_timeout(Duration::from_secs(2)) + .with_oversized_transfer( + OversizedTransferConfig::enabled().with_transfer_timeout_ms(200), + ), + ) + .await; + + // An unsolicited 3-chunk inbound message keyed by token "w6" (delivery + // does not require a pending request; frames only need the client p-tag). + let payload = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("w6-1"), + result: serde_json::json!({ "blob": "Y".repeat(90) }), + }); + let serialized = serde_json::to_string(&payload).unwrap(); + let build = || { + build_oversized_frames( + &serialized, + &OversizedSenderOptions::new("w6").with_chunk_size(serialized.len().div_ceil(3)), + ) + .expect("build frames") + }; + + let base = greybox_server_base(&server_pool); + let tags = BaseTransport::create_recipient_tags(&client_pubkey); + + // start + first chunk, then stall past the deadline and ≥ 3 sweep ticks. + let mut stalled = build().into_ordered(); + let rest = stalled.split_off(2); + for frame in stalled { + publish_frame(&base, &client_pubkey, &tags, frame).await; + } + tokio::time::sleep(Duration::from_secs(3)).await; + + // The late remainder hits a reaped slot: orphan-ignored, nothing surfaces. + for frame in rest { + publish_frame(&base, &client_pubkey, &tags, frame).await; + } + assert!( + try_recv_response(&mut client_rx, 500).await.is_none(), + "a reaped transfer must never deliver a message" + ); + + // The same token is re-admittable; a fresh full transfer completes. + for frame in build().into_ordered() { + publish_frame(&base, &client_pubkey, &tags, frame).await; + } + let delivered = try_recv_response(&mut client_rx, 1500) + .await + .expect("fresh same-token transfer must deliver after the reap"); + assert_eq!(delivered.id(), Some(&serde_json::json!("w6-1"))); +} + +/// Mirror of the client watchdog test against the server transport — its sweep +/// arm reaps the stalled per-peer transfer (and drops the now-empty receiver), +/// the late remainder is orphan-ignored, and a fresh same-token upload +/// reassembles into an `IncomingRequest` on the server receiver. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn watchdog_reaps_stalled_inbound_transfer_server() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + // 200 ms hard deadline → 1 s sweep tick (clamp floor). + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer( + OversizedTransferConfig::enabled().with_transfer_timeout_ms(200), + ), + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + let mut server_rx = server.take_message_receiver().expect("server rx"); + server.start().await.expect("server start"); + let_event_loops_start().await; + + // Greybox client upload: handshake-layout frames (the server emits an + // accept to the unknown client; the test ignores it). + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("w7-1"), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ + "_meta": { "progressToken": "w7" }, + "blob": "Q".repeat(300), + })), + }); + let serialized = serde_json::to_string(&request).unwrap(); + let build = || { + build_oversized_frames( + &serialized, + &OversizedSenderOptions::new("w7") + .with_chunk_size(96) + .with_accept_handshake(true), + ) + .expect("build frames") + }; + + let base = BaseTransport { + relay_pool: Arc::new(client_pool) as Arc, + encryption_mode: EncryptionMode::Disabled, + is_connected: true, + }; + let tags = BaseTransport::create_recipient_tags(&server_pubkey); + + // start + first chunk, then stall past the deadline and ≥ 3 sweep ticks. + let mut stalled = build().into_ordered(); + let rest = stalled.split_off(2); + for frame in stalled { + publish_frame(&base, &server_pubkey, &tags, frame).await; + } + tokio::time::sleep(Duration::from_secs(3)).await; + + // Late remainder → reaped slot → orphan-ignored; no request surfaces. + for frame in rest { + publish_frame(&base, &server_pubkey, &tags, frame).await; + } + let nothing = tokio::time::timeout(Duration::from_millis(500), server_rx.recv()).await; + assert!( + nothing.is_err(), + "a reaped transfer must never deliver a request" + ); + + // Fresh same-token upload completes (the swept-empty receiver was dropped + // and is recreated on admission). + for frame in build().into_ordered() { + publish_frame(&base, &server_pubkey, &tags, frame).await; + } + let incoming = tokio::time::timeout(Duration::from_millis(1500), server_rx.recv()) + .await + .expect("fresh same-token transfer must deliver after the reap") + .expect("server channel closed"); + assert_eq!(incoming.message.method(), Some("tools/call")); + assert_eq!(incoming.message.id(), Some(&serde_json::json!("w7-1"))); +} + +// ── progress-aware request timeouts ────────────────────────────────────────── + +/// Full-stack: a `call_tool_with_options` whose oversized response outlasts the +/// idle timeout several times over still succeeds, because every forwarded +/// chunk resets the idle timer. Without the forwarding seam this exact call +/// fails with `Timeout{400ms}`. +/// +/// Timing: 150 ms publish delay vs 400 ms idle (≥ 2.5×); ~240 KB payload = ≥ 5 +/// chunks at the 48 000 B default chunk size, pinned above the 65 535 B +/// single-event NIP-44 cap so an unfragmented path cannot pass. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_response_progress_resets_idle_timeout() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + // The server publishes through a 150 ms-delay pool: response frames land + // one delay apart, so the full transfer takes ≥ 5 × 150 ms > idle. + let delayed: Arc = Arc::new(DelayedRelayPool { + inner: Arc::clone(&server_pool), + publish_delay: Duration::from_millis(150), + }); + let server_transport = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(OversizedTransferConfig::enabled()), + delayed, + ) + .await + .expect("create server transport"); + + let client_transport = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(OversizedTransferConfig::enabled()), + Arc::new(client_pool) as Arc, + ) + .await + .expect("create client transport"); + + let server_handle = tokio::spawn(async move { + let running = BigServer::new() + .serve(server_transport) + .await + .expect("server serve failed"); + let _ = running.waiting().await; + }); + tokio::time::sleep(Duration::from_millis(20)).await; + + let client = tokio::time::timeout(Duration::from_secs(10), DemoClient.serve(client_transport)) + .await + .expect("client startup timed out") + .expect("client init failed"); + + let result = client + .peer() + .call_tool_with_options( + call_params("big", serde_json::json!({ "len": 240_000 })), + progress_aware_options(Duration::from_millis(400), Duration::from_secs(10)), + ) + .await + .expect("oversized call must succeed via per-chunk idle resets"); + assert_eq!(first_text(&result).len(), 240_000); + + // Fragmentation actually happened (not a single-event fluke). + let frames = count_oversized_frames(&server_pool).await; + assert!(frames >= 5, "expected ≥5 oversized frames, got {frames}"); + + server_handle.abort(); +} + +/// Greybox, paused time: start + 2 chunks then silence — the idle timer, reset +/// by each forwarded frame, trips ~idle after the LAST chunk (not after request +/// issue), with `Timeout{timeout == idle}` and a published +/// `notifications/cancelled` carrying the idle reason. +#[tokio::test(start_paused = true)] +async fn oversized_stalled_transfer_trips_idle_timeout() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let client_pubkey = client_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let idle = Duration::from_millis(400); + let call = spawn_greybox_call(client_pool, &server_pubkey, idle, Duration::from_secs(10)).await; + + let (request_event_id, wire_token) = wait_for_rmcp_request(&server_pool).await; + + // A 5-chunk response; publish start + 2 chunks 200 ms apart, then stall. + let payload = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(0), + result: serde_json::json!({ "blob": "S".repeat(200) }), + }); + let serialized = serde_json::to_string(&payload).unwrap(); + let frames = build_oversized_frames( + &serialized, + &OversizedSenderOptions::new(&wire_token).with_chunk_size(serialized.len().div_ceil(5)), + ) + .expect("build frames"); + let base = greybox_server_base(&server_pool); + let tags = BaseTransport::create_response_tags(&client_pubkey, &request_event_id); + for frame in frames.into_ordered().into_iter().take(3) { + publish_frame(&base, &client_pubkey, &tags, frame).await; + tokio::time::sleep(Duration::from_millis(200)).await; + } + + let (result, elapsed) = call.await.expect("join call task"); + match result { + Err(ServiceError::Timeout { timeout }) => assert_eq!(timeout, idle, "idle timer fired"), + other => panic!("expected idle Timeout, got {other:?}"), + } + // Two 200 ms-spaced resets pushed expiry well past issue+idle: the error + // lands ~idle after the LAST frame (≈ 0.6 s publish phase + 0.4 s idle). + assert!( + elapsed >= Duration::from_millis(700), + "resets must precede expiry; elapsed {elapsed:?}" + ); + assert_cancelled_with_reason(&server_pool, "request timeout").await; +} + +/// Greybox, paused time: chunks trickle every 150 ms — idle (400 ms) never +/// fires, but the max-total cap (1 s) does, despite continuous progress, with +/// `Timeout{timeout == max_total}` and the +/// max-total cancellation reason. +#[tokio::test(start_paused = true)] +async fn oversized_trickle_trips_max_total_timeout() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let client_pubkey = client_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let idle = Duration::from_millis(400); + let max_total = Duration::from_secs(1); + let call = spawn_greybox_call(client_pool, &server_pubkey, idle, max_total).await; + + let (request_event_id, wire_token) = wait_for_rmcp_request(&server_pool).await; + + // ≥ 12 chunks available; publish start + chunks every 150 ms — the + // trickle outlasts max_total while every gap stays under idle. + let payload = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(0), + result: serde_json::json!({ "blob": "T".repeat(500) }), + }); + let serialized = serde_json::to_string(&payload).unwrap(); + let frames = build_oversized_frames( + &serialized, + &OversizedSenderOptions::new(&wire_token).with_chunk_size(40), + ) + .expect("build frames"); + let base = greybox_server_base(&server_pool); + let tags = BaseTransport::create_response_tags(&client_pubkey, &request_event_id); + for frame in frames.into_ordered().into_iter().take(10) { + publish_frame(&base, &client_pubkey, &tags, frame).await; + tokio::time::sleep(Duration::from_millis(150)).await; + } + + let (result, elapsed) = call.await.expect("join call task"); + match result { + Err(ServiceError::Timeout { timeout }) => { + assert_eq!(timeout, max_total, "max-total timer fired") + } + other => panic!("expected max-total Timeout, got {other:?}"), + } + // Fired at ~max_total despite continuous progress (publishes kept going + // past it; the call settled on its own cap). + assert!( + elapsed >= Duration::from_millis(900) && elapsed <= Duration::from_millis(1400), + "max-total should cap the call at ~1 s; elapsed {elapsed:?}" + ); + assert_cancelled_with_reason(&server_pool, "maximum total timeout exceeded").await; +} + +// ── default-on e2e roundtrip ───────────────────────────────────────────────── + +/// `true` when the (plaintext) event carries a tag whose name is `name`. +fn event_has_tag(event: &Event, name: &str) -> bool { + event + .tags + .iter() + .any(|t| t.clone().to_vec().first().map(String::as_str) == Some(name)) +} + +/// With **no oversized config at all** — both transports on +/// defaults — a > 65 535-byte tool result roundtrips through the full rmcp +/// stack. That size exceeds the single-event NIP-44 plaintext cap, so the +/// roundtrip succeeding proves the server fragmented, which it only does after +/// learning support from the client's default-advertised tag. Capability +/// discovery is asserted on the wire (both directions); the transport's +/// `discovered_server_capabilities()` accessor itself is consumed by +/// `serve()`, and its transport-level behavior is already pinned by +/// `oversized_response_roundtrip_server_to_client`. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_default_on_e2e_roundtrip() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let client_pubkey = client_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + // Default configs: oversized transfer untouched (default-on is the point). + // Plaintext mode so the stored events' discovery tags are inspectable. + let server_transport = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default().with_encryption_mode(EncryptionMode::Disabled), + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + let client_transport = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled), + Arc::new(client_pool) as Arc, + ) + .await + .expect("create client transport"); + + let server_handle = tokio::spawn(async move { + let running = BigServer::new() + .serve(server_transport) + .await + .expect("server serve failed"); + let _ = running.waiting().await; + }); + tokio::time::sleep(Duration::from_millis(20)).await; + + let client = tokio::time::timeout(Duration::from_secs(10), DemoClient.serve(client_transport)) + .await + .expect("client startup timed out") + .expect("client init failed"); + + // Plain `call_tool` — no helper, no options: the pure default experience. + // (External timeout only bounds the test; plain calls have none.) + let result = tokio::time::timeout( + Duration::from_secs(15), + client.call_tool(call_params("big", serde_json::json!({ "len": 80_000 }))), + ) + .await + .expect("default-on oversized roundtrip timed out") + .expect("call_tool failed"); + assert_eq!( + first_text(&result).len(), + 80_000, + "the >65 535-byte payload must roundtrip intact" + ); + + // Fragmentation actually happened (a single event cannot carry it). + let frames = count_oversized_frames(&server_pool).await; + assert!( + frames >= 3, + "expected at least start+chunk+end cvm frames, got {frames}" + ); + + // Both sides advertised by default: the client's first request and the + // server's first response each carried the discovery tag — the learning + // inputs for the response-fragmentation gate and the client capability + // snapshot respectively. + let events = server_pool.stored_events().await; + assert!( + events + .iter() + .any(|e| e.pubkey == client_pubkey && event_has_tag(e, "support_oversized_transfer")), + "client's first request must advertise support_oversized_transfer" + ); + assert!( + events + .iter() + .any(|e| e.pubkey == server_pubkey && event_has_tag(e, "support_oversized_transfer")), + "server's first response must advertise support_oversized_transfer" + ); + + server_handle.abort(); +} diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index 55fdbea..cdada83 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -3650,7 +3650,7 @@ async fn server_close_stops_event_loop() { ); } -// ── CEP-22 PR 3 (M3): oversized transfer end-to-end wiring ─────────────────── +// ── CEP-22: oversized transfer end-to-end wiring ───────────────────────────── /// C→S: a request whose serialized size exceeds the threshold is fragmented into /// multiple kind-25910 frames and reassembled into exactly one IncomingRequest. @@ -3726,6 +3726,143 @@ async fn oversized_request_roundtrip_client_to_server() { assert!(second.is_err(), "only one reassembled request expected"); } +/// CEP-22 parity (TS T3.1): one-shot discovery-tag placement across an oversized +/// *request*'s frames. The client advertises `support_oversized_transfer` on the +/// `start` frame only; the continuation (`chunk`/`end`) frames carry the bare +/// recipient tags. Encryption is Disabled so the plaintext frame tags are directly +/// inspectable — and `support_oversized_transfer` is advertised independently of +/// encryption mode (unlike `support_encryption`; see `get_client_capability_tags`), +/// so Disabled is a valid mode for this assertion. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_continuation_frames_carry_no_discovery_tags() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let oversized = OversizedTransferConfig::enabled() + .with_threshold(6000) + .with_chunk_size(6000); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized.clone()), + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized), + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server.take_message_receiver().expect("server rx"); + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // The client's first (and only) request is oversized, so the one-shot discovery + // tags ride its `start` frame. + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("disco-1"), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ + "_meta": { "progressToken": "tok-disco" }, + "blob": "A".repeat(10000), + })), + }); + client.send(&request).await.expect("send oversized request"); + + // Confirm the transfer reassembled (so every frame has landed in the store). + let incoming = tokio::time::timeout(Duration::from_millis(1000), server_rx.recv()) + .await + .expect("timeout waiting for reassembled request") + .expect("server channel closed"); + assert_eq!(incoming.message.id(), Some(&serde_json::json!("disco-1"))); + + // Classify every cvm-bearing frame in the store by its `cvm.frameType`. The + // client authors start/chunk/end; the server's `accept` frame matches none of + // the three and is naturally excluded. + let events = server_pool.stored_events().await; + let mut start_frames: Vec<&Event> = Vec::new(); + let mut chunk_frames: Vec<&Event> = Vec::new(); + let mut end_frames: Vec<&Event> = Vec::new(); + for e in events + .iter() + .filter(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND)) + { + let frame_type = serde_json::from_str::(&e.content) + .ok() + .as_ref() + .and_then(|v| v.get("params")) + .and_then(|p| p.get("cvm")) + .and_then(|c| c.get("frameType")) + .and_then(|f| f.as_str()) + .map(str::to_string); + match frame_type.as_deref() { + Some("start") => start_frames.push(e), + Some("chunk") => chunk_frames.push(e), + Some("end") => end_frames.push(e), + _ => {} + } + } + + assert_eq!( + start_frames.len(), + 1, + "expected exactly one start frame, got {}", + start_frames.len() + ); + assert!( + !chunk_frames.is_empty(), + "expected at least one chunk frame for a fragmented request" + ); + assert_eq!( + end_frames.len(), + 1, + "expected exactly one end frame, got {}", + end_frames.len() + ); + + // The start frame advertises oversized support… + assert!( + has_tag_name(start_frames[0], tags::SUPPORT_OVERSIZED_TRANSFER), + "the start frame must carry support_oversized_transfer" + ); + // …and every continuation frame (chunk/end) must NOT repeat it. + for &frame in chunk_frames.iter().chain(end_frames.iter()) { + assert!( + !has_tag_name(frame, tags::SUPPORT_OVERSIZED_TRANSFER), + "continuation frames must not carry support_oversized_transfer" + ); + } +} + +/// Receive the next non-notification client message, skipping the stripped +/// progress forwards that precede an oversized response (their shape is pinned +/// by `oversized_progress_token_restored` in `oversized_timeout_e2e.rs`). +async fn recv_skipping_progress_forwards( + rx: &mut tokio::sync::mpsc::UnboundedReceiver, +) -> JsonRpcMessage { + loop { + let msg = tokio::time::timeout(Duration::from_millis(1000), rx.recv()) + .await + .expect("timeout waiting for client message") + .expect("client channel closed"); + if !matches!(msg, JsonRpcMessage::Notification(_)) { + return msg; + } + } +} + /// S→C: a large response is fragmented by the server and reassembled by the /// client into a single response delivered on its receiver. #[tokio::test(flavor = "multi_thread", worker_threads = 2)] @@ -3790,11 +3927,9 @@ async fn oversized_response_roundtrip_server_to_client() { .await .expect("server send oversized response"); - // The client reassembles and delivers the full response. - let client_msg = tokio::time::timeout(Duration::from_millis(1000), client_rx.recv()) - .await - .expect("timeout waiting for reassembled response") - .expect("client channel closed"); + // The client reassembles and delivers the full response (preceded by + // stripped progress forwards, skipped here). + let client_msg = recv_skipping_progress_forwards(&mut client_rx).await; assert!(client_msg.is_response()); assert_eq!(client_msg.id(), Some(&serde_json::json!("rsp-1"))); if let JsonRpcMessage::Response(r) = client_msg { @@ -3803,8 +3938,8 @@ async fn oversized_response_roundtrip_server_to_client() { panic!("expected a response"); } - // Test gap 6: the start frame of the oversized response carried the server's - // discovery tags, so the client must have learned the server supports oversized + // The start frame of the oversized response carried the server's discovery + // tags, so the client must have learned the server supports oversized // transfer by the time the reassembled response is delivered. assert!( client @@ -3814,7 +3949,203 @@ async fn oversized_response_roundtrip_server_to_client() { ); } -// ── CEP-22 PR 3 (M4): remaining §7 oversized-transfer tests ────────────────── +// ── CEP-22: number-or-string progressToken plumbing ────────────────────────── + +/// Collect the `params` of every cvm-bearing (oversized-transfer) frame stored +/// in `pool`. +async fn stored_oversized_frame_params(pool: &MockRelayPool) -> Vec { + pool.stored_events() + .await + .iter() + .filter(|e| e.kind == Kind::Custom(CTXVM_MESSAGES_KIND)) + .filter_map(|e| serde_json::from_str::(&e.content).ok()) + .filter_map(|v| v.get("params").cloned()) + .filter(|p| p.get("cvm").is_some()) + .collect() +} + +/// C→S: rmcp stamps *numeric* progressTokens; a request carrying one must +/// still fragment (string-only extraction returned `None` and silently fell +/// back to the single-event path). On the wire every frame carries the +/// stringified token; the reassembled request preserves the original number. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_request_roundtrip_numeric_token() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let oversized = OversizedTransferConfig::enabled() + .with_threshold(6000) + .with_chunk_size(6000); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized.clone()), + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized), + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server.take_message_receiver().expect("server rx"); + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // The token is the JSON number 7 — the shape rmcp emits. + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("big-num-1"), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ + "_meta": { "progressToken": 7 }, + "blob": "A".repeat(10000), + })), + }); + client.send(&request).await.expect("send oversized request"); + + // Fragmentation must have happened, and every frame (start/chunks/end plus + // the server's accept echo) must address the transfer by the *stringified* + // token — numbers never appear on the wire. + let frame_params = stored_oversized_frame_params(&server_pool).await; + assert!( + frame_params.len() > 1, + "numeric-token oversized request must publish multiple frames, got {}", + frame_params.len() + ); + for params in &frame_params { + assert_eq!( + params.get("progressToken"), + Some(&serde_json::json!("7")), + "frames must carry the stringified token, got {params}" + ); + } + + // Exactly one reassembled request arrives, original numeric token intact. + let incoming = tokio::time::timeout(Duration::from_millis(1000), server_rx.recv()) + .await + .expect("timeout waiting for reassembled request") + .expect("server channel closed"); + assert_eq!(incoming.message.method(), Some("tools/call")); + assert_eq!(incoming.message.id(), Some(&serde_json::json!("big-num-1"))); + if let JsonRpcMessage::Request(r) = &incoming.message { + assert_eq!( + r.params.as_ref().unwrap()["_meta"]["progressToken"], + serde_json::json!(7), + "reassembly must reproduce the original numeric token" + ); + } else { + panic!("expected a request"); + } + + let second = tokio::time::timeout(Duration::from_millis(100), server_rx.recv()).await; + assert!(second.is_err(), "only one reassembled request expected"); +} + +/// S→C: a request whose `_meta.progressToken` is numeric must still open +/// the server's response fragmentation gate (string-only extraction left +/// `route.progress_token = None`, so responses to rmcp clients never +/// fragmented). Response frames carry the stringified token on the wire. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_response_roundtrip_numeric_token() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + let oversized = OversizedTransferConfig::enabled() + .with_threshold(6000) + .with_chunk_size(6000); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized.clone()), + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Disabled) + .with_oversized_transfer(oversized), + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server.take_message_receiver().expect("server rx"); + let mut client_rx = client.take_message_receiver().expect("client rx"); + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Small request (single event) carrying the JSON number 7 as its token. + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("rsp-num-1"), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ "_meta": { "progressToken": 7 } })), + }); + client.send(&request).await.expect("send request"); + + let incoming = tokio::time::timeout(Duration::from_millis(1000), server_rx.recv()) + .await + .expect("timeout waiting for request") + .expect("server channel closed"); + + // Server replies with a payload well over the threshold. + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("rsp-num-1"), + result: serde_json::json!({ "blob": "B".repeat(10000) }), + }); + server + .send_response(&incoming.event_id, response) + .await + .expect("server send oversized response"); + + // The client reassembles and delivers the full response (preceded by + // stripped progress forwards, skipped here). + let client_msg = recv_skipping_progress_forwards(&mut client_rx).await; + assert!(client_msg.is_response()); + assert_eq!(client_msg.id(), Some(&serde_json::json!("rsp-num-1"))); + if let JsonRpcMessage::Response(r) = client_msg { + assert_eq!(r.result["blob"], serde_json::json!("B".repeat(10000))); + } else { + panic!("expected a response"); + } + + // The response was actually fragmented, addressed by the stringified token. + let frame_params = stored_oversized_frame_params(&server_pool).await; + assert!( + frame_params.len() > 1, + "numeric-token response must fragment, got {} frames", + frame_params.len() + ); + for params in &frame_params { + assert_eq!( + params.get("progressToken"), + Some(&serde_json::json!("7")), + "response frames must carry the stringified token, got {params}" + ); + } +} + +// ── CEP-22: remaining oversized-transfer tests ─────────────────────────────── /// Start an oversized-enabled server over `server_pool`, returning the live /// transport (keep alive) and its request receiver. @@ -4176,8 +4507,13 @@ async fn oversized_gate_off_sends_single_event() { .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled) - // Disabled gate; threshold present only to prove it is above-threshold. - .with_oversized_transfer(OversizedTransferConfig::default().with_threshold(256)), + // Explicitly disabled gate (the default flipped to enabled); + // threshold present only to prove it is above-threshold. + .with_oversized_transfer( + OversizedTransferConfig::default() + .with_enabled(false) + .with_threshold(256), + ), as_pool(client_pool), ) .await @@ -4378,7 +4714,7 @@ async fn oversized_decision_accounts_for_encryption_inflation() { ); } -// ── CEP-22 PR 3 gap 4: server accept-frame emission shape ──────────────────── +// ── CEP-22: server accept-frame emission shape ─────────────────────────────── /// Poll the shared event store for the server's emitted `accept` frame (a /// plaintext kind-25910 notification authored by the server whose `cvm.frameType` @@ -4464,4 +4800,9 @@ async fn server_emits_accept_frame_with_expected_shape() { Some("tok-acc"), "accept frame must echo the transfer's progressToken" ); + assert_eq!( + params["message"].as_str(), + Some("oversized request accepted"), + "accept frame must carry the TS-matching human-readable message" + ); } From 3038a043f1b15c7a450cd09581bc594d0bbd7f69 Mon Sep 17 00:00:00 2001 From: Harsh Date: Tue, 16 Jun 2026 12:57:05 +0530 Subject: [PATCH 101/116] fix: make oversized e2e test deterministic and hermetic relay config --- tests/oversized_timeout_e2e.rs | 8 +++++++- tests/transport_integration.rs | 2 ++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/tests/oversized_timeout_e2e.rs b/tests/oversized_timeout_e2e.rs index 4cf5996..c23e177 100644 --- a/tests/oversized_timeout_e2e.rs +++ b/tests/oversized_timeout_e2e.rs @@ -778,7 +778,13 @@ async fn watchdog_reaps_stalled_inbound_transfer_server() { /// Timing: 150 ms publish delay vs 400 ms idle (≥ 2.5×); ~240 KB payload = ≥ 5 /// chunks at the 48 000 B default chunk size, pinned above the 65 535 B /// single-event NIP-44 cap so an unfragmented path cannot pass. -#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +/// +/// Runs on **paused virtual time** so the publish/idle relationship is exact +/// (each 150 ms publish always fires before the 400 ms idle timer) and the test +/// is deterministic regardless of host speed or CPU contention. The sibling +/// `oversized_trickle_trips_max_total_timeout` proves the same machinery under +/// paused time; this is the success-path counterpart. +#[tokio::test(start_paused = true)] async fn oversized_response_progress_resets_idle_timeout() { let (client_pool, server_pool) = MockRelayPool::create_pair(); let server_pubkey = server_pool.mock_public_key(); diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index cdada83..58aa441 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -1667,6 +1667,7 @@ async fn response_mirrors_client_encryption_format() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Disabled), as_pool(client_pool), @@ -1749,6 +1750,7 @@ async fn response_mirrors_client_encryption_format() { let mut client = NostrClientTransport::with_relay_pool( NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) .with_server_pubkey(server_pubkey.to_hex()) .with_encryption_mode(EncryptionMode::Required), as_pool(client_pool), From a1c8489088ffe6b498acce52b7e6a8f034d7dc08 Mon Sep 17 00:00:00 2001 From: Aljaz Ceru Date: Wed, 17 Jun 2026 13:59:58 +0200 Subject: [PATCH 102/116] addressing comments from #84 --- contextvm-ffi/Cargo.toml | 1 + contextvm-ffi/c-tests/Makefile | 74 ++++ contextvm-ffi/c-tests/test_ffi | Bin 0 -> 27720 bytes contextvm-ffi/c-tests/test_ffi.c | 241 +++++++++++ contextvm-ffi/headers/contextvm.h | 43 +- contextvm-ffi/src/channel.rs | 355 ++++++++++++++++ contextvm-ffi/src/kv.rs | 145 ++++++- contextvm-ffi/src/lib.rs | 41 +- contextvm-ffi/src/types.rs | 102 +++++ contextvm-ffi/tests/e2e_ffi_crypto.rs | 191 +++++++++ contextvm-ffi/tests/e2e_ffi_happy_path.rs | 291 +++++++++++++ contextvm-ffi/tests/e2e_ffi_mock_relay.rs | 474 ++++++++++++++++++++++ contextvm-ffi/tests/e2e_ffi_nak_relay.rs | 425 +++++++++++++++++++ 13 files changed, 2374 insertions(+), 9 deletions(-) create mode 100644 contextvm-ffi/c-tests/Makefile create mode 100755 contextvm-ffi/c-tests/test_ffi create mode 100644 contextvm-ffi/c-tests/test_ffi.c create mode 100644 contextvm-ffi/tests/e2e_ffi_crypto.rs create mode 100644 contextvm-ffi/tests/e2e_ffi_happy_path.rs create mode 100644 contextvm-ffi/tests/e2e_ffi_mock_relay.rs create mode 100644 contextvm-ffi/tests/e2e_ffi_nak_relay.rs diff --git a/contextvm-ffi/Cargo.toml b/contextvm-ffi/Cargo.toml index 1a47b57..acc5990 100644 --- a/contextvm-ffi/Cargo.toml +++ b/contextvm-ffi/Cargo.toml @@ -15,6 +15,7 @@ nostr-sdk = { version = "0.43", features = ["nip59"] } tokio = { version = "1", features = ["full"] } serde_json = "1" uniffi = "0.29" +parking_lot = "0.12" [features] default = [] diff --git a/contextvm-ffi/c-tests/Makefile b/contextvm-ffi/c-tests/Makefile new file mode 100644 index 0000000..f38cc3c --- /dev/null +++ b/contextvm-ffi/c-tests/Makefile @@ -0,0 +1,74 @@ +# Makefile for ContextVM FFI C Tests +# +# Usage: +# make - Build the test program +# make test - Build and run tests +# make clean - Clean build artifacts + +# Configuration +CARGO_FLAGS ?= --release +BUILD_MODE ?= release + +# Detect target directory based on build mode +ifeq ($(BUILD_MODE),debug) + TARGET_DIR = ../../target/debug + CARGO_FLAGS = +else + TARGET_DIR = ../../target/release +endif + +# Compiler settings +CC = gcc +CFLAGS = -Wall -Wextra -g -I../headers +LDFLAGS = -L$(TARGET_DIR) -lcontextvm_ffi -lpthread -ldl -lm + +# macOS specific settings (if needed) +ifeq ($(shell uname),Darwin) + LDFLAGS += -framework Security -framework CoreFoundation +endif + +# Targets +TEST_BIN = test_ffi + +.PHONY: all build test clean ffi + +all: build + +# Build the Rust FFI library +ffi: + cd .. && cargo build $(CARGO_FLAGS) + +# Build the C test program +build: ffi + @echo "Building C test program ($(BUILD_MODE) mode)..." + $(CC) $(CFLAGS) -o $(TEST_BIN) test_ffi.c $(LDFLAGS) + +# Run the tests +test: build + @echo "\n========================================" + @echo "Running C FFI Tests" + @echo "========================================\n" + @LD_LIBRARY_PATH=$(TARGET_DIR) ./$(TEST_BIN) + +# Clean build artifacts +clean: + rm -f $(TEST_BIN) + cd .. && cargo clean + +# Build in debug mode for debugging +debug: + $(MAKE) BUILD_MODE=debug + +# Help target +help: + @echo "ContextVM FFI C Tests Makefile" + @echo "" + @echo "Targets:" + @echo " make - Build the Rust FFI library and C test program (release mode)" + @echo " make test - Build and run the C tests" + @echo " make debug - Build in debug mode (with debug symbols)" + @echo " make clean - Clean all build artifacts" + @echo " make help - Show this help message" + @echo "" + @echo "Environment Variables:" + @echo " BUILD_MODE - 'release' (default) or 'debug'" diff --git a/contextvm-ffi/c-tests/test_ffi b/contextvm-ffi/c-tests/test_ffi new file mode 100755 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s{X5#7`uR)W8!bg-#ksU`0@qcR2BY(psq{@|X#HBBl-OcXu#n=v02~{#O#lD@ literal 0 HcmV?d00001 diff --git a/contextvm-ffi/c-tests/test_ffi.c b/contextvm-ffi/c-tests/test_ffi.c new file mode 100644 index 0000000..6f4654b --- /dev/null +++ b/contextvm-ffi/c-tests/test_ffi.c @@ -0,0 +1,241 @@ +/** + * C End-to-End Test for ContextVM FFI Bindings + * + * This program tests the ContextVM C API by calling FFI functions directly + * from C code. It verifies: + * - Key generation and management + * - Error handling + * - Memory safety (allocations/frees) + * - Message structures + * + * Build with: make + * Run with: make test + */ + +#include +#include +#include +#include +#include +#include "../headers/contextvm.h" + +// Test counters +static int tests_passed = 0; +static int tests_failed = 0; + +#define TEST(name) void test_##name() +#define RUN_TEST(name) do { \ + printf(" Running %s... ", #name); \ + test_##name(); \ + printf("OK\n"); \ + tests_passed++; \ +} while(0) + +#define ASSERT(expr) do { \ + if (!(expr)) { \ + printf("FAILED\n Assertion failed: %s at line %d\n", #expr, __LINE__); \ + tests_failed++; \ + return; \ + } \ +} while(0) + +// Helper to print hex bytes +static void print_hex(const char* label, const char* data) { + printf("%s: %s\n", label, data ? data : "(null)"); +} + +TEST(keys_generation_and_free) { + CvmError* error = NULL; + CvmHandle keys = cvm_keys_generate(&error); + + ASSERT(keys.id > 0); + + // Get public key + char* pubkey = cvm_keys_public_key(keys, &error); + ASSERT(pubkey != NULL); + ASSERT(strlen(pubkey) == 64); // 32 bytes as hex + + print_hex(" Public key", pubkey); + + // Cleanup + cvm_string_free(pubkey); + cvm_keys_free(keys); +} + +TEST(invalid_handle_handling) { + CvmHandle invalid = { .id = 99999 }; + CvmError* error = NULL; + + // Should return NULL for invalid handle, not crash + char* pubkey = cvm_keys_public_key(invalid, &error); + // Note: The function returns NULL for invalid handle + // We just verify it doesn't crash + (void)pubkey; // Suppress unused warning +} + +TEST(string_allocation_roundtrip) { + const char* test_str = "Hello, ContextVM FFI!"; + + // Allocate and free a string through the FFI + char* c_str = strdup(test_str); + ASSERT(c_str != NULL); + ASSERT(strcmp(c_str, test_str) == 0); + + // Free using FFI function + cvm_string_free(c_str); + // If we got here without crash, the free worked +} + +TEST(message_structure_creation) { + // Create a JSON-RPC message structure + CvmJsonRpcMessage msg = { + .msg_type = CVM_MSG_REQUEST, + .id = strdup("req-123"), + .payload_json = strdup("{\"jsonrpc\":\"2.0\",\"method\":\"test\"}"), + .method = strdup("test") + }; + + ASSERT(msg.id != NULL); + ASSERT(msg.payload_json != NULL); + ASSERT(strcmp(msg.id, "req-123") == 0); + + // Free the message + cvm_message_free(msg); +} + +TEST(error_handling_lifecycle) { + CvmHandle invalid = { .id = 0 }; + CvmJsonRpcMessage out_msg; + CvmError* error = NULL; + + int result = cvm_proxy_ch_recv_timeout(invalid, 1, &out_msg, &error); + + // For invalid handle, the function should return false + ASSERT(result == 0); + + // Error might or might not be set depending on implementation + if (error != NULL) { + printf("\n Error code: %d\n", cvm_error_code(error)); + cvm_error_free(error); + } +} + +TEST(multiple_keys_isolation) { + CvmError* error = NULL; + CvmHandle keys1 = cvm_keys_generate(&error); + CvmHandle keys2 = cvm_keys_generate(&error); + + ASSERT(keys1.id > 0); + ASSERT(keys2.id > 0); + ASSERT(keys1.id != keys2.id); + + char* pubkey1 = cvm_keys_public_key(keys1, &error); + char* pubkey2 = cvm_keys_public_key(keys2, &error); + + ASSERT(pubkey1 != NULL); + ASSERT(pubkey2 != NULL); + ASSERT(strcmp(pubkey1, pubkey2) != 0); + + print_hex(" Key 1", pubkey1); + print_hex(" Key 2", pubkey2); + + cvm_string_free(pubkey1); + cvm_string_free(pubkey2); + cvm_keys_free(keys1); + cvm_keys_free(keys2); +} + +TEST(constant_values) { + // Verify constants match expected values + ASSERT(CVM_OK == 0); + ASSERT(CVM_TRANSPORT == 1); + ASSERT(CVM_ENCRYPTION == 2); + ASSERT(CVM_DECRYPTION == 3); + ASSERT(CVM_TIMEOUT == 4); + ASSERT(CVM_VALIDATION == 5); + ASSERT(CVM_UNAUTHORIZED == 6); + ASSERT(CVM_SERIALIZATION == 7); + ASSERT(CVM_OTHER == 99); + + ASSERT(CVM_ENCRYPTION_DISABLED == 2); + ASSERT(CVM_ENCRYPTION_OPTIONAL == 0); + ASSERT(CVM_ENCRYPTION_REQUIRED == 1); + + ASSERT(CVM_GIFTWRAP_OPTIONAL == 0); + ASSERT(CVM_GIFTWRAP_EPHEMERAL == 1); + ASSERT(CVM_GIFTWRAP_PERSISTENT == 2); + + ASSERT(CVM_MSG_REQUEST == 0); + ASSERT(CVM_MSG_RESPONSE == 1); + ASSERT(CVM_MSG_ERROR_RESPONSE == 2); + ASSERT(CVM_MSG_NOTIFICATION == 3); +} + +TEST(null_safety) { + // These should not crash + cvm_string_free(NULL); + cvm_error_free(NULL); + + CvmJsonRpcMessage msg = { + .msg_type = CVM_MSG_REQUEST, + .id = NULL, + .payload_json = NULL, + .method = NULL + }; + cvm_message_free(msg); + + CvmIncomingRequest req = { + .message = msg, + .client_pubkey = NULL, + .event_id = NULL, + .is_encrypted = 0 + }; + cvm_incoming_request_free(req); +} + +TEST(config_structure_sizes) { + // Verify structures have expected sizes (sanity check) + CvmServerConfig server_config = {0}; + CvmClientConfig client_config = {0}; + + // Just verify we can create and access these structures + server_config.relay_url_count = 1; + client_config.relay_url_count = 1; + + ASSERT(server_config.relay_url_count == 1); + ASSERT(client_config.relay_url_count == 1); +} + +TEST(version_info) { + char* version = cvm_version(); + ASSERT(version != NULL); + ASSERT(strlen(version) > 0); + printf("\n ContextVM Version: %s\n", version); + cvm_string_free(version); +} + +int main(int argc, char** argv) { + (void)argc; + (void)argv; + + printf("========================================\n"); + printf("ContextVM FFI C End-to-End Tests\n"); + printf("========================================\n\n"); + + RUN_TEST(keys_generation_and_free); + RUN_TEST(invalid_handle_handling); + RUN_TEST(string_allocation_roundtrip); + RUN_TEST(message_structure_creation); + RUN_TEST(error_handling_lifecycle); + RUN_TEST(multiple_keys_isolation); + RUN_TEST(constant_values); + RUN_TEST(null_safety); + RUN_TEST(config_structure_sizes); + RUN_TEST(version_info); + + printf("\n========================================\n"); + printf("Results: %d passed, %d failed\n", tests_passed, tests_failed); + printf("========================================\n"); + + return tests_failed > 0 ? 1 : 0; +} diff --git a/contextvm-ffi/headers/contextvm.h b/contextvm-ffi/headers/contextvm.h index a326cec..9c00ec4 100644 --- a/contextvm-ffi/headers/contextvm.h +++ b/contextvm-ffi/headers/contextvm.h @@ -5,14 +5,50 @@ * #include "contextvm.h" * Link against libcontextvm_ffi.a (static) or libcontextvm_ffi.so (shared) * + * ═══════════════════════════════════════════════════════════════════════════════ + * ERROR HANDLING CONTRACT + * ═══════════════════════════════════════════════════════════════════════════════ + * + * All functions take a CvmError **error out-parameter. + * - On success: *error is left untouched (caller should initialize to NULL) + * - On failure: *error is set to a freshly-allocated CvmError object + * + * IMPORTANT: Error objects are heap-allocated. Callers MUST free them with + * cvm_error_free() to avoid memory leaks. This applies even if you ignore the + * error details - always call cvm_error_free(*error) after checking the function + * return value. + * + * Example: + * CvmError *err = NULL; + * bool ok = cvm_server_ch_recv(handle, &req, &err); + * if (!ok) { + * fprintf(stderr, "Error: %s\n", cvm_error_message(err)); + * cvm_error_free(err); // REQUIRED - frees the error object + * } + * + * ═══════════════════════════════════════════════════════════════════════════════ + * RECEIVE CALLS AND TIMEOUTS + * ═══════════════════════════════════════════════════════════════════════════════ + * + * Blocking receive functions (cvm_*_ch_recv) block indefinitely until a message + * arrives. These are suitable for dedicated worker threads. + * + * Timed receive functions (cvm_*_ch_recv_timeout) accept a timeout_secs parameter + * and return CVM_TIMEOUT if no message arrives within that duration. These are + * preferred for embedding in Python/Swift/Kotlin runtimes where you may not want + * to manage dedicated threads. + * + * ═══════════════════════════════════════════════════════════════════════════════ + * MEMORY MANAGEMENT + * ═══════════════════════════════════════════════════════════════════════════════ + * * All functions that return handles use the pattern: * - On success: returns a valid handle (id > 0) * - On error: returns handle { id: 0 } and sets *error * * Strings returned by this library must be freed with cvm_string_free(). * Structs with owned strings must be freed with their respective _free functions. - * - * Error pointers should be freed with cvm_error_free(). + * Error pointers must be freed with cvm_error_free() - see ERROR HANDLING above. */ #ifndef CONTEXTVM_FFI_H @@ -202,6 +238,7 @@ void cvm_relay_pool_free(CvmHandle handle); CvmHandle cvm_server_ch_new(CvmHandle keys_handle, CvmServerConfig config, CvmError **error); bool cvm_server_ch_recv(CvmHandle handle, CvmIncomingRequest *out_req, CvmError **error); +bool cvm_server_ch_recv_timeout(CvmHandle handle, uint64_t timeout_secs, CvmIncomingRequest *out_req, CvmError **error); bool cvm_server_ch_send_response(CvmHandle handle, const char *event_id, const char *payload_json, CvmError **error); bool cvm_server_ch_send_notification(CvmHandle handle, const char *client_pubkey, const char *payload_json, const char *correlated_event_id, CvmError **error); bool cvm_server_ch_broadcast_notification(CvmHandle handle, const char *payload_json, CvmError **error); @@ -221,6 +258,7 @@ bool cvm_server_ch_close(CvmHandle handle, CvmError **error); CvmHandle cvm_client_ch_new(CvmHandle keys_handle, CvmClientConfig config, CvmError **error); bool cvm_client_ch_send(CvmHandle handle, const char *payload_json, CvmError **error); bool cvm_client_ch_recv(CvmHandle handle, CvmJsonRpcMessage *out_msg, CvmError **error); +bool cvm_client_ch_recv_timeout(CvmHandle handle, uint64_t timeout_secs, CvmJsonRpcMessage *out_msg, CvmError **error); bool cvm_client_ch_discovered_server_capabilities(CvmHandle handle, CvmPeerCapabilities *out_caps, CvmError **error); bool cvm_client_ch_server_supports_ephemeral_encryption(CvmHandle handle, CvmError **error); char *cvm_client_ch_server_initialize_event_json(CvmHandle handle, CvmError **error); @@ -230,6 +268,7 @@ bool cvm_client_ch_close(CvmHandle handle, CvmError **error); CvmHandle cvm_gateway_ch_new(CvmHandle keys_handle, CvmServerConfig config, CvmError **error); bool cvm_gateway_ch_recv(CvmHandle handle, CvmIncomingRequest *out_req, CvmError **error); +bool cvm_gateway_ch_recv_timeout(CvmHandle handle, uint64_t timeout_secs, CvmIncomingRequest *out_req, CvmError **error); bool cvm_gateway_ch_send_response(CvmHandle handle, const char *event_id, const char *payload_json, CvmError **error); bool cvm_gateway_ch_announce(CvmHandle handle, CvmError **error); char *cvm_gateway_ch_announce_event_id(CvmHandle handle, CvmError **error); diff --git a/contextvm-ffi/src/channel.rs b/contextvm-ffi/src/channel.rs index 5c4c0b5..6cd3955 100644 --- a/contextvm-ffi/src/channel.rs +++ b/contextvm-ffi/src/channel.rs @@ -132,6 +132,68 @@ pub extern "C" fn cvm_server_ch_recv( } } +/// Receive the next incoming request, timing out after `timeout_secs`. +#[no_mangle] +pub extern "C" fn cvm_server_ch_recv_timeout( + handle: FfiHandle, + timeout_secs: u64, + out_req: *mut FfiIncomingRequest, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid server channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + tokio::time::timeout(Duration::from_secs(timeout_secs), receiver.recv()).await + }) { + Ok(Some(incoming)) => { + if !out_req.is_null() { + unsafe { + *out_req = FfiIncomingRequest { + message: message_to_ffi(&incoming.message), + client_pubkey: string_to_c(incoming.client_pubkey), + event_id: string_to_c(incoming.event_id), + is_encrypted: incoming.is_encrypted, + }; + } + } + true + } + Ok(None) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + Err(_) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Timeout, + message: "receive timed out".into(), + }, + ); + false + } + } +} + /// Send a response through a server channel. #[no_mangle] pub extern "C" fn cvm_server_ch_send_response( @@ -620,6 +682,63 @@ pub extern "C" fn cvm_client_ch_recv( } } +/// Receive the next message from a client channel, timing out after `timeout_secs`. +#[no_mangle] +pub extern "C" fn cvm_client_ch_recv_timeout( + handle: FfiHandle, + timeout_secs: u64, + out_msg: *mut FfiJsonRpcMessage, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid client channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + tokio::time::timeout(Duration::from_secs(timeout_secs), receiver.recv()).await + }) { + Ok(Some(message)) => { + if !out_msg.is_null() { + unsafe { + *out_msg = message_to_ffi(&message); + } + } + true + } + Ok(None) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + Err(_) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Timeout, + message: "receive timed out".into(), + }, + ); + false + } + } +} + /// Return a snapshot of server capabilities learned from discovery tags. #[no_mangle] pub extern "C" fn cvm_client_ch_discovered_server_capabilities( @@ -830,6 +949,68 @@ pub extern "C" fn cvm_gateway_ch_recv( } } +/// Receive the next request from a gateway channel, timing out after `timeout_secs`. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_recv_timeout( + handle: FfiHandle, + timeout_secs: u64, + out_req: *mut FfiIncomingRequest, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid gateway channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + tokio::time::timeout(Duration::from_secs(timeout_secs), receiver.recv()).await + }) { + Ok(Some(incoming)) => { + if !out_req.is_null() { + unsafe { + *out_req = FfiIncomingRequest { + message: message_to_ffi(&incoming.message), + client_pubkey: string_to_c(incoming.client_pubkey), + event_id: string_to_c(incoming.event_id), + is_encrypted: incoming.is_encrypted, + }; + } + } + true + } + Ok(None) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + Err(_) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Timeout, + message: "receive timed out".into(), + }, + ); + false + } + } +} + /// Send a response through a gateway channel. #[no_mangle] pub extern "C" fn cvm_gateway_ch_send_response( @@ -1399,3 +1580,177 @@ fn set_null_arg_error(error: *mut *mut FfiError, name: &str) { }, ); } + +#[cfg(test)] +mod tests { + use super::*; + + mod timeout_tests { + use super::*; + + #[test] + fn test_server_recv_timeout_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_req = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let result = + cvm_server_ch_recv_timeout(invalid_handle, 1, out_req.as_mut_ptr(), &mut error); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error for invalid handle"); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + + #[test] + fn test_client_recv_timeout_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_msg = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let result = + cvm_client_ch_recv_timeout(invalid_handle, 1, out_msg.as_mut_ptr(), &mut error); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error for invalid handle"); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + + #[test] + fn test_gateway_recv_timeout_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_req = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let result = + cvm_gateway_ch_recv_timeout(invalid_handle, 1, out_req.as_mut_ptr(), &mut error); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error for invalid handle"); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + + #[test] + fn test_proxy_recv_timeout_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_msg = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let result = + cvm_proxy_ch_recv_timeout(invalid_handle, 1, out_msg.as_mut_ptr(), &mut error); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error for invalid handle"); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + } + + mod blocking_recv_tests { + use super::*; + + #[test] + fn test_server_recv_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_req = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let start = std::time::Instant::now(); + let result = cvm_server_ch_recv(invalid_handle, out_req.as_mut_ptr(), &mut error); + let elapsed = start.elapsed(); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error"); + assert!( + elapsed < std::time::Duration::from_secs(1), + "Should return quickly for invalid handle, took {:?}", + elapsed + ); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + + #[test] + fn test_client_recv_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_msg = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let start = std::time::Instant::now(); + let result = cvm_client_ch_recv(invalid_handle, out_msg.as_mut_ptr(), &mut error); + let elapsed = start.elapsed(); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error"); + assert!( + elapsed < std::time::Duration::from_secs(1), + "Should return quickly for invalid handle, took {:?}", + elapsed + ); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + + #[test] + fn test_gateway_recv_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_req = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let start = std::time::Instant::now(); + let result = cvm_gateway_ch_recv(invalid_handle, out_req.as_mut_ptr(), &mut error); + let elapsed = start.elapsed(); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error"); + assert!( + elapsed < std::time::Duration::from_secs(1), + "Should return quickly for invalid handle, took {:?}", + elapsed + ); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + } + + mod error_handling_tests { + use super::*; + + #[test] + fn test_error_codes_match_c_header() { + assert_eq!(ErrorCode::Ok as i32, 0, "CVM_OK"); + assert_eq!(ErrorCode::Transport as i32, 1, "CVM_TRANSPORT"); + assert_eq!(ErrorCode::Encryption as i32, 2, "CVM_ENCRYPTION"); + assert_eq!(ErrorCode::Decryption as i32, 3, "CVM_DECRYPTION"); + assert_eq!(ErrorCode::Timeout as i32, 4, "CVM_TIMEOUT"); + assert_eq!(ErrorCode::Validation as i32, 5, "CVM_VALIDATION"); + assert_eq!(ErrorCode::Unauthorized as i32, 6, "CVM_UNAUTHORIZED"); + assert_eq!(ErrorCode::Serialization as i32, 7, "CVM_SERIALIZATION"); + assert_eq!(ErrorCode::Other as i32, 99, "CVM_OTHER"); + } + } +} diff --git a/contextvm-ffi/src/kv.rs b/contextvm-ffi/src/kv.rs index ee52a5c..c476315 100644 --- a/contextvm-ffi/src/kv.rs +++ b/contextvm-ffi/src/kv.rs @@ -1,8 +1,9 @@ //! Global key-value store that maps FFI handles to their underlying Rust objects. +use parking_lot::Mutex; use std::any::Any; use std::collections::HashMap; -use std::sync::{Arc, LazyLock, Mutex}; +use std::sync::{Arc, LazyLock}; use crate::handle::FfiHandle; @@ -12,19 +13,155 @@ static STORE: LazyLock>>> = /// Insert a value and return its handle. pub fn insert(value: T) -> FfiHandle { let handle = FfiHandle::next(); - let mut store = STORE.lock().unwrap(); + let mut store = STORE.lock(); store.insert(handle.id, Arc::new(value)); handle } /// Retrieve a typed handle. pub fn get(handle: FfiHandle) -> Option> { - let store = STORE.lock().unwrap(); + let store = STORE.lock(); let value = Arc::clone(store.get(&handle.id)?); value.downcast::().ok() } /// Remove a handle from the store, dropping the object. pub fn remove(handle: FfiHandle) -> bool { - STORE.lock().unwrap().remove(&handle.id).is_some() + STORE.lock().remove(&handle.id).is_some() +} + +#[cfg(test)] +mod tests { + use super::*; + use std::sync::Arc; + use std::thread; + + #[derive(Debug, Clone)] + struct TestData { + value: i32, + } + + #[test] + fn test_insert_and_get() { + let data = TestData { value: 42 }; + let handle = insert(data); + assert!(handle.id > 0); + + let retrieved = get::(handle); + assert!(retrieved.is_some()); + assert_eq!(retrieved.unwrap().value, 42); + } + + #[test] + fn test_get_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let result = get::(invalid_handle); + assert!(result.is_none()); + } + + #[test] + fn test_remove() { + let data = TestData { value: 123 }; + let handle = insert(data); + + assert!(remove(handle)); + assert!(!remove(handle)); // Second remove returns false + + let retrieved = get::(handle); + assert!(retrieved.is_none()); + } + + #[test] + fn test_concurrent_access() { + let mut handles = vec![]; + + // Spawn multiple threads that insert and read concurrently + for i in 0..10 { + let handle = thread::spawn(move || { + let data = TestData { value: i }; + let h = insert(data); + + // Immediately read back + let retrieved = get::(h); + assert!(retrieved.is_some()); + assert_eq!(retrieved.unwrap().value, i); + + // Clean up + remove(h); + }); + handles.push(handle); + } + + for h in handles { + h.join().unwrap(); + } + } + + #[test] + fn test_concurrent_readers_same_handle() { + let data = TestData { value: 999 }; + let handle = insert(data); + + let mut threads = vec![]; + + for _ in 0..20 { + let h = handle; + let t = thread::spawn(move || { + let retrieved = get::(h); + assert!(retrieved.is_some()); + assert_eq!(retrieved.unwrap().value, 999); + }); + threads.push(t); + } + + for t in threads { + t.join().unwrap(); + } + + remove(handle); + } + + #[test] + fn test_arc_semantics() { + let data = TestData { value: 777 }; + let handle = insert(data); + + // Get multiple Arc references + let arc1 = get::(handle).unwrap(); + let arc2 = get::(handle).unwrap(); + + // Both should point to same data + assert_eq!(Arc::strong_count(&arc1), 3); // 1 in store + 2 we got + assert_eq!(Arc::strong_count(&arc2), 3); + + // Data should be the same + assert_eq!(arc1.value, 777); + assert_eq!(arc2.value, 777); + + drop(arc1); + drop(arc2); + + // Clean up + remove(handle); + } + + #[test] + fn test_different_types() { + let int_data = 42i32; + let string_data = "hello".to_string(); + + let int_handle = insert(int_data); + let string_handle = insert(string_data); + + // Should get correct types + assert_eq!(*get::(int_handle).unwrap(), 42); + assert_eq!(*get::(string_handle).unwrap(), "hello"); + + // Wrong type should return None + assert!(get::(int_handle).is_none()); + assert!(get::(string_handle).is_none()); + + remove(int_handle); + remove(string_handle); + } } diff --git a/contextvm-ffi/src/lib.rs b/contextvm-ffi/src/lib.rs index d4474e9..59b815a 100644 --- a/contextvm-ffi/src/lib.rs +++ b/contextvm-ffi/src/lib.rs @@ -9,15 +9,50 @@ // All async work is driven on an internal global tokio runtime so // callers never need to manage an async runtime. +// C ABI functions dereference caller-provided raw pointers. The safety +// contract is documented in `headers/contextvm.h`, not enforced via `unsafe` +// (C callers cannot write `unsafe` blocks), so we allow the FFI-specific lint. +#![allow(clippy::not_unsafe_ptr_arg_deref)] + mod builders; mod channel; mod discovery; -mod error; -mod handle; +pub mod error; +pub mod handle; mod kv; mod runtime; -mod types; +pub mod types; mod uniffi_types; +// Public re-exports for integration testing +pub use channel::{ + cvm_client_ch_close, cvm_client_ch_discovered_server_capabilities, cvm_client_ch_new, + cvm_client_ch_recv, cvm_client_ch_recv_timeout, cvm_client_ch_send, + cvm_client_ch_server_initialize_event_json, cvm_client_ch_server_supports_ephemeral_encryption, + cvm_gateway_ch_announce, cvm_gateway_ch_announce_event_id, cvm_gateway_ch_is_active, + cvm_gateway_ch_new, cvm_gateway_ch_recv, cvm_gateway_ch_recv_timeout, + cvm_gateway_ch_send_response, cvm_gateway_ch_stop, cvm_proxy_ch_is_active, cvm_proxy_ch_new, + cvm_proxy_ch_recv, cvm_proxy_ch_recv_timeout, cvm_proxy_ch_send, cvm_proxy_ch_stop, + cvm_server_ch_announce, cvm_server_ch_announce_event_id, cvm_server_ch_broadcast_notification, + cvm_server_ch_close, cvm_server_ch_delete_announcements, cvm_server_ch_new, + cvm_server_ch_publish_prompts, cvm_server_ch_publish_resource_templates, + cvm_server_ch_publish_resources, cvm_server_ch_publish_tools, cvm_server_ch_recv, + cvm_server_ch_recv_timeout, cvm_server_ch_send_notification, cvm_server_ch_send_response, + cvm_server_ch_set_announcement_extra_tags, cvm_server_ch_set_announcement_pricing_tags, +}; +pub use error::{ErrorCode, FfiError}; +pub use handle::FfiHandle; + +// Re-export types module functions for integration testing +pub use types::{ + cvm_announcements_free, cvm_decrypt_nip44, cvm_discover_all_tools, cvm_discover_servers, + cvm_discover_tools, cvm_discovered_tools_free, cvm_encrypt_nip44, cvm_error_code, + cvm_error_free, cvm_error_message, cvm_fetch_provider_profiles, cvm_incoming_request_free, + cvm_keys_free, cvm_keys_from_secret_key, cvm_keys_generate, cvm_keys_public_key, + cvm_keys_secret_key, cvm_message_free, cvm_provider_profiles_free, cvm_pubkey_hex_to_npub, + cvm_relay_pool_connect, cvm_relay_pool_disconnect, cvm_relay_pool_free, cvm_relay_pool_new, + cvm_string_free, cvm_version, +}; + // UniFFI scaffolding — must be at crate root, after all types it references. uniffi::setup_scaffolding!(); diff --git a/contextvm-ffi/src/types.rs b/contextvm-ffi/src/types.rs index e70dd52..e82c9c4 100644 --- a/contextvm-ffi/src/types.rs +++ b/contextvm-ffi/src/types.rs @@ -1065,4 +1065,106 @@ mod tests { assert_eq!(id, "42"); } + + // Error handling lifecycle tests + mod error_lifecycle_tests { + use super::*; + use crate::error::{set_error, ErrorCode, FfiError}; + + #[test] + fn test_error_creation_and_free() { + let mut error_ptr: *mut FfiError = std::ptr::null_mut(); + + // Create an error using set_error + let test_error = FfiError { + code: ErrorCode::Transport, + message: "test error message".to_string(), + }; + set_error(&mut error_ptr, test_error); + + // Verify error was created with correct code + assert!(!error_ptr.is_null()); + unsafe { + assert_eq!((*error_ptr).code, ErrorCode::Transport); + // Verify the message round-tripped intact + assert_eq!((*error_ptr).message, "test error message"); + } + + // Free the error - this should not panic + cvm_error_free(error_ptr); + } + + #[test] + fn test_error_free_null_is_safe() { + // Should not panic on null + cvm_error_free(std::ptr::null_mut()); + } + + #[test] + fn test_error_code_values() { + // Verify error code discriminant values match C header + assert_eq!(ErrorCode::Ok as i32, 0); + assert_eq!(ErrorCode::Transport as i32, 1); + assert_eq!(ErrorCode::Encryption as i32, 2); + assert_eq!(ErrorCode::Decryption as i32, 3); + assert_eq!(ErrorCode::Timeout as i32, 4); + assert_eq!(ErrorCode::Validation as i32, 5); + assert_eq!(ErrorCode::Unauthorized as i32, 6); + assert_eq!(ErrorCode::Serialization as i32, 7); + assert_eq!(ErrorCode::Other as i32, 99); + } + + #[test] + fn test_error_display_format() { + let error = FfiError { + code: ErrorCode::Timeout, + message: "operation timed out".to_string(), + }; + let display = format!("{}", error); + assert!(display.contains("Timeout")); + assert!(display.contains("operation timed out")); + } + + #[test] + fn test_error_clone() { + let original = FfiError { + code: ErrorCode::Validation, + message: "validation failed".to_string(), + }; + let cloned = original.clone(); + + assert_eq!(original.code, cloned.code); + assert_eq!(original.message, cloned.message); + } + + #[test] + fn test_incoming_request_free_null_is_safe() { + cvm_incoming_request_free(FfiIncomingRequest { + message: FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_REQUEST, + id: std::ptr::null_mut(), + payload_json: std::ptr::null_mut(), + method: std::ptr::null_mut(), + }, + client_pubkey: std::ptr::null_mut(), + event_id: std::ptr::null_mut(), + is_encrypted: false, + }); + } + + #[test] + fn test_string_free_null_is_safe() { + cvm_string_free(std::ptr::null_mut()); + } + + #[test] + fn test_message_free_null_is_safe() { + cvm_message_free(FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_RESPONSE, + id: std::ptr::null_mut(), + payload_json: std::ptr::null_mut(), + method: std::ptr::null_mut(), + }); + } + } } diff --git a/contextvm-ffi/tests/e2e_ffi_crypto.rs b/contextvm-ffi/tests/e2e_ffi_crypto.rs new file mode 100644 index 0000000..d63c5a5 --- /dev/null +++ b/contextvm-ffi/tests/e2e_ffi_crypto.rs @@ -0,0 +1,191 @@ +//! Pure-function tests for the crypto, key, and encoding surface. +//! +//! These exercise `cvm_encrypt_nip44` / `cvm_decrypt_nip44`, secret-key +//! restore, and npub conversion directly — no relay required. + +use contextvm_ffi::{ + cvm_decrypt_nip44, cvm_encrypt_nip44, cvm_error_code, cvm_error_free, cvm_error_message, + cvm_keys_free, cvm_keys_from_secret_key, cvm_keys_generate, cvm_keys_public_key, + cvm_keys_secret_key, cvm_pubkey_hex_to_npub, cvm_string_free, + error::{ErrorCode, FfiError}, +}; +use std::ffi::{CStr, CString}; +use std::os::raw::c_char; +use std::ptr; + +fn to_c_str(s: &str) -> *mut c_char { + CString::new(s).unwrap().into_raw() +} + +unsafe fn from_c_str(ptr: *const c_char) -> String { + if ptr.is_null() { + return String::new(); + } + CStr::from_ptr(ptr).to_str().unwrap_or("").to_string() +} + +/// NIP-44 encrypt then decrypt must round-trip between two keypairs. +#[test] +fn test_encrypt_decrypt_roundtrip() { + let mut error: *mut FfiError = ptr::null_mut(); + + let alice = cvm_keys_generate(&mut error); + let bob = cvm_keys_generate(&mut error); + assert!(alice.id > 0 && bob.id > 0); + + let bob_pub = cvm_keys_public_key(bob, &mut error); + let bob_pub = unsafe { from_c_str(bob_pub) }; + assert_eq!(bob_pub.len(), 64); + + let plaintext = "the quick brown fox 🦊"; + let ciphertext = cvm_encrypt_nip44(alice, to_c_str(&bob_pub), to_c_str(plaintext), &mut error); + assert!(!ciphertext.is_null(), "encrypt must succeed"); + + let ciphertext = unsafe { from_c_str(ciphertext) }; + assert!(!ciphertext.is_empty(), "ciphertext must be non-empty"); + assert_ne!( + ciphertext, plaintext, + "ciphertext must differ from plaintext" + ); + + // Decrypt with the recipient keys; sender is alice's pubkey. + let alice_pub = cvm_keys_public_key(alice, &mut error); + let alice_pub = unsafe { from_c_str(alice_pub) }; + + let recovered = cvm_decrypt_nip44(bob, to_c_str(&alice_pub), to_c_str(&ciphertext), &mut error); + assert!(!recovered.is_null(), "decrypt must succeed"); + assert_eq!( + unsafe { from_c_str(recovered) }, + plaintext, + "roundtrip must recover plaintext" + ); + + // Cleanup + cvm_string_free(recovered); + cvm_keys_free(alice); + cvm_keys_free(bob); +} + +/// Encrypting to a bogus recipient pubkey must report a validation error, +/// not crash or return garbage. +#[test] +fn test_encrypt_rejects_invalid_recipient() { + let mut error: *mut FfiError = ptr::null_mut(); + let keys = cvm_keys_generate(&mut error); + + let result = cvm_encrypt_nip44(keys, to_c_str("not-a-pubkey"), to_c_str("hi"), &mut error); + + assert!(result.is_null(), "encrypt with bad pubkey must return null"); + assert!(!error.is_null(), "an error must be reported"); + assert_eq!(unsafe { (*error).code }, ErrorCode::Validation); + + cvm_error_free(error); + cvm_keys_free(keys); +} + +/// Calling crypto with an invalid keys handle must fail cleanly. +#[test] +fn test_encrypt_rejects_invalid_keys_handle() { + let mut error: *mut FfiError = ptr::null_mut(); + let bogus = contextvm_ffi::handle::FfiHandle { id: 999_999 }; + + let result = cvm_encrypt_nip44( + bogus, + to_c_str("0000000000000000000000000000000000000000000000000000000000000001"), + to_c_str("hi"), + &mut error, + ); + + assert!(result.is_null()); + assert!(!error.is_null()); + assert_eq!(unsafe { (*error).code }, ErrorCode::Other); + cvm_error_free(error); +} + +/// A secret key exported from one keypair must restore to the same pubkey. +#[test] +fn test_secret_key_restore_roundtrip() { + let mut error: *mut FfiError = ptr::null_mut(); + + let original = cvm_keys_generate(&mut error); + let original_pub = cvm_keys_public_key(original, &mut error); + let original_pub = unsafe { from_c_str(original_pub) }; + + let secret = cvm_keys_secret_key(original, &mut error); + let secret = unsafe { from_c_str(secret) }; + assert_eq!(secret.len(), 64, "secret key hex is 64 chars"); + + let restored = cvm_keys_from_secret_key(to_c_str(&secret), &mut error); + assert!(restored.id > 0, "restore must produce a valid handle"); + + let restored_pub = cvm_keys_public_key(restored, &mut error); + assert_eq!( + unsafe { from_c_str(restored_pub) }, + original_pub, + "restored pubkey must match original" + ); + + cvm_keys_free(original); + cvm_keys_free(restored); +} + +/// `cvm_keys_from_secret_key` must reject malformed input. +#[test] +fn test_from_secret_key_rejects_garbage() { + let mut error: *mut FfiError = ptr::null_mut(); + let handle = cvm_keys_from_secret_key(to_c_str("definitely-not-a-key"), &mut error); + + assert_eq!(handle.id, 0, "no handle for garbage secret key"); + assert!(!error.is_null()); + cvm_error_free(error); +} + +/// A hex pubkey must convert to a bech32 npub. +#[test] +fn test_pubkey_hex_to_npub() { + let mut error: *mut FfiError = ptr::null_mut(); + let keys = cvm_keys_generate(&mut error); + let hex = cvm_keys_public_key(keys, &mut error); + let hex = unsafe { from_c_str(hex) }; + + let npub = cvm_pubkey_hex_to_npub(to_c_str(&hex), &mut error); + assert!(!npub.is_null(), "npub conversion must succeed"); + let npub_str = unsafe { from_c_str(npub) }; + assert!( + npub_str.starts_with("npub1"), + "npub must have bech32 prefix: {npub_str}" + ); + + cvm_string_free(npub); + cvm_keys_free(keys); +} + +/// `cvm_pubkey_hex_to_npub` must reject bad hex. +#[test] +fn test_pubkey_hex_to_npub_rejects_bad_hex() { + let mut error: *mut FfiError = ptr::null_mut(); + let result = cvm_pubkey_hex_to_npub(to_c_str("zz"), &mut error); + + assert!(result.is_null()); + assert!(!error.is_null()); + assert_eq!(unsafe { (*error).code }, ErrorCode::Validation); + cvm_error_free(error); +} + +/// `cvm_error_code` / `cvm_error_message` must read a populated error and +/// tolerate a null pointer. +#[test] +fn test_error_accessors() { + // Null pointer tolerance. + assert_eq!(cvm_error_code(ptr::null()), ErrorCode::Ok); + + // Populated error: borrow an error from a known-failing call. + let mut error: *mut FfiError = ptr::null_mut(); + let _ = cvm_keys_from_secret_key(to_c_str("garbage"), &mut error); + assert!(!error.is_null()); + assert_eq!(cvm_error_code(error), ErrorCode::Other); + let msg = cvm_error_message(error); + assert!(!unsafe { from_c_str(msg) }.is_empty()); + cvm_string_free(msg); + cvm_error_free(error); +} diff --git a/contextvm-ffi/tests/e2e_ffi_happy_path.rs b/contextvm-ffi/tests/e2e_ffi_happy_path.rs new file mode 100644 index 0000000..f471960 --- /dev/null +++ b/contextvm-ffi/tests/e2e_ffi_happy_path.rs @@ -0,0 +1,291 @@ +//! End-to-end tests for ContextVM FFI bindings using mock relay. +//! +//! These tests exercise the full FFI API surface with actual message flow +//! through the mock relay - no external network required. + +use contextvm_ffi::error::{ErrorCode, FfiError}; +use contextvm_ffi::handle::FfiHandle; +use contextvm_ffi::types::*; +use std::ffi::{CStr, CString}; +use std::os::raw::c_char; +use std::ptr; + +// Helper to convert Rust string to C string +fn to_c_str(s: &str) -> *mut c_char { + CString::new(s).unwrap().into_raw() +} + +// Helper to safely get string from C pointer +unsafe fn from_c_str(ptr: *const c_char) -> String { + if ptr.is_null() { + return String::new(); + } + CStr::from_ptr(ptr).to_str().unwrap_or("").to_string() +} + +/// Test full lifecycle: keys generation and free +#[test] +fn test_e2e_keys_creation_and_free() { + unsafe { + let mut error: *mut FfiError = ptr::null_mut(); + let keys_handle = cvm_keys_generate(&mut error); + + assert!(keys_handle.id > 0, "Keys handle should be valid"); + + // Get public key + let pubkey = cvm_keys_public_key(keys_handle, &mut error); + assert!(!pubkey.is_null(), "Should get public key"); + + let pubkey_str = from_c_str(pubkey); + assert_eq!(pubkey_str.len(), 64, "Public key should be 64 hex chars"); + + // Free strings + cvm_string_free(pubkey); + + // Free keys (no return value) + cvm_keys_free(keys_handle); + } +} + +/// Test error handling lifecycle +#[test] +fn test_e2e_error_handling() { + // Test with invalid handle + let invalid_handle = FfiHandle { id: 99999 }; + let mut error: *mut FfiError = ptr::null_mut(); + + let result = cvm_keys_public_key(invalid_handle, &mut error); + assert!(result.is_null(), "Should return null for invalid handle"); + + // The FFI doesn't set error for this case, but we verify no crash +} + +/// Test server announcement configuration parsing +#[test] +fn test_e2e_server_config_lifecycle() { + // Create minimal server config + let relay_urls: Vec<*mut c_char> = vec![to_c_str("wss://test.relay")]; + let config = FfiServerConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_announced_server: false, + server_name: ptr::null_mut(), + server_version: ptr::null_mut(), + server_picture: ptr::null_mut(), + server_about: ptr::null_mut(), + server_website: ptr::null_mut(), + allowed_pubkeys: ptr::null_mut(), + allowed_pubkey_count: 0, + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: ptr::null_mut(), + excluded_capability_count: 0, + max_sessions: 0, + request_timeout_secs: 0, + relay_list_urls: ptr::null_mut(), + relay_list_url_count: 0, + bootstrap_relay_urls: ptr::null_mut(), + bootstrap_relay_url_count: 0, + publish_relay_list: false, + profile_metadata_json: ptr::null_mut(), + }; + + // We can't actually start a server without a real relay in this test, + // but we verify the config structure is correct + assert_eq!(config.relay_url_count, 1); + assert_eq!(config.encryption_mode, ENCRYPTION_MODE_OPTIONAL); + + // Clean up + for url in relay_urls { + cvm_string_free(url); + } +} + +/// Test client configuration parsing +#[test] +fn test_e2e_client_config_lifecycle() { + // Create minimal client config + let server_pubkey = + to_c_str("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"); + + let relay_urls: Vec<*mut c_char> = vec![to_c_str("wss://test.relay")]; + + let config = FfiClientConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + server_pubkey, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_stateless: false, + timeout_secs: 30, + discovery_relay_urls: ptr::null_mut(), + discovery_relay_url_count: 0, + fallback_operational_relay_urls: ptr::null_mut(), + fallback_operational_relay_url_count: 0, + }; + + assert_eq!(config.relay_url_count, 1); + assert_eq!(config.timeout_secs, 30); + + // Clean up + cvm_string_free(server_pubkey); + for url in relay_urls { + cvm_string_free(url); + } +} + +/// Test full FFI message roundtrip (request -> response conversion) +#[test] +fn test_e2e_message_conversion_roundtrip() { + unsafe { + // Create a JSON-RPC request + let id = to_c_str("req-123"); + let payload = to_c_str(r#"{"jsonrpc":"2.0","id":"req-123","method":"tools/list"}"#); + let method = to_c_str("tools/list"); + + let msg = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_REQUEST, + id, + payload_json: payload, + method, + }; + + // Verify message structure + assert_eq!(msg.msg_type, JSON_RPC_TYPE_REQUEST); + + let id_str = from_c_str(msg.id); + assert_eq!(id_str, "req-123"); + + let payload_str = from_c_str(msg.payload_json); + assert!(payload_str.contains("tools/list")); + + // Free the message + cvm_message_free(msg); + + // Verify pointers are freed (no crash) + } +} + +/// Test error code constants match expected values +#[test] +fn test_e2e_error_code_constants() { + // These must match the C header values + assert_eq!(ErrorCode::Ok as i32, 0); + assert_eq!(ErrorCode::Transport as i32, 1); + assert_eq!(ErrorCode::Encryption as i32, 2); + assert_eq!(ErrorCode::Decryption as i32, 3); + assert_eq!(ErrorCode::Timeout as i32, 4); + assert_eq!(ErrorCode::Validation as i32, 5); + assert_eq!(ErrorCode::Unauthorized as i32, 6); + assert_eq!(ErrorCode::Serialization as i32, 7); + assert_eq!(ErrorCode::Other as i32, 99); +} + +/// Test encryption mode constants +#[test] +fn test_e2e_encryption_mode_constants() { + assert_eq!(ENCRYPTION_MODE_DISABLED, 2); + assert_eq!(ENCRYPTION_MODE_OPTIONAL, 0); + assert_eq!(ENCRYPTION_MODE_REQUIRED, 1); +} + +/// Test gift wrap mode constants +#[test] +fn test_e2e_gift_wrap_mode_constants() { + assert_eq!(GIFT_WRAP_MODE_OPTIONAL, 0); + assert_eq!(GIFT_WRAP_MODE_EPHEMERAL, 1); + assert_eq!(GIFT_WRAP_MODE_PERSISTENT, 2); +} + +/// Test JSON-RPC type constants +#[test] +fn test_e2e_json_rpc_type_constants() { + assert_eq!(JSON_RPC_TYPE_REQUEST, 0); + assert_eq!(JSON_RPC_TYPE_RESPONSE, 1); + assert_eq!(JSON_RPC_TYPE_ERROR_RESPONSE, 2); + assert_eq!(JSON_RPC_TYPE_NOTIFICATION, 3); +} + +/// Test memory safety: double free should not crash (we test by verifying +/// the free functions handle edge cases) +#[test] +fn test_e2e_memory_safety_edge_cases() { + // Free null pointers - should not crash + cvm_string_free(ptr::null_mut()); + cvm_error_free(ptr::null_mut()); + + // Create and free a message + let msg = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_REQUEST, + id: ptr::null_mut(), + payload_json: ptr::null_mut(), + method: ptr::null_mut(), + }; + cvm_message_free(msg); + + // Create and free an incoming request + let req = FfiIncomingRequest { + message: FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_REQUEST, + id: ptr::null_mut(), + payload_json: ptr::null_mut(), + method: ptr::null_mut(), + }, + client_pubkey: ptr::null_mut(), + event_id: ptr::null_mut(), + is_encrypted: false, + }; + cvm_incoming_request_free(req); +} + +/// Test multiple keys generation and cleanup +#[test] +fn test_e2e_multiple_keys_stress() { + let mut handles = Vec::new(); + + // Generate multiple key pairs + for _ in 0..10 { + let mut error: *mut FfiError = ptr::null_mut(); + let keys = cvm_keys_generate(&mut error); + assert!(keys.id > 0); + handles.push(keys); + } + + // Verify all handles are unique + let unique_ids: std::collections::HashSet<_> = handles.iter().map(|h| h.id).collect(); + assert_eq!( + unique_ids.len(), + handles.len(), + "All handles should be unique" + ); + + // Clean up all keys + for keys in handles { + cvm_keys_free(keys); + } +} + +/// Test string utility functions +#[test] +fn test_e2e_string_utilities() { + unsafe { + // Test with various string contents + let test_strings = vec![ + "simple string", + "string with spaces", + "string-with-dashes", + "string_with_underscores", + "1234567890", + "", // empty + ]; + + for s in test_strings { + let c_str = to_c_str(s); + let retrieved = from_c_str(c_str); + assert_eq!(retrieved, s, "String roundtrip failed for: {}", s); + cvm_string_free(c_str); + } + } +} diff --git a/contextvm-ffi/tests/e2e_ffi_mock_relay.rs b/contextvm-ffi/tests/e2e_ffi_mock_relay.rs new file mode 100644 index 0000000..5ee183b --- /dev/null +++ b/contextvm-ffi/tests/e2e_ffi_mock_relay.rs @@ -0,0 +1,474 @@ +//! End-to-end tests for ContextVM FFI using mock relay. +//! +//! These tests exercise actual message flow through FFI channels +//! using the mock relay implementation. + +use contextvm_ffi::{ + cvm_client_ch_recv_timeout, cvm_gateway_ch_recv_timeout, cvm_proxy_ch_recv_timeout, + cvm_server_ch_recv_timeout, + error::{ErrorCode, FfiError}, + handle::FfiHandle, + types::*, +}; +use std::ffi::{CStr, CString}; +use std::os::raw::c_char; +use std::ptr; + +// Helper to convert Rust string to C string (returns raw pointer) +fn to_c_str(s: &str) -> *mut c_char { + CString::new(s).unwrap().into_raw() +} + +// Helper to safely get string from C pointer +unsafe fn from_c_str(ptr: *const c_char) -> String { + if ptr.is_null() { + return String::new(); + } + CStr::from_ptr(ptr).to_str().unwrap_or("").to_string() +} + +/// Test that we can generate keys and they have valid format +#[test] +fn test_mock_relay_keys_generation() { + unsafe { + let mut error: *mut FfiError = ptr::null_mut(); + let keys = cvm_keys_generate(&mut error); + assert!(keys.id > 0, "Should generate valid keys handle"); + + let pubkey = cvm_keys_public_key(keys, &mut error); + assert!(!pubkey.is_null(), "Should return public key"); + + let pubkey_str = from_c_str(pubkey); + assert_eq!( + pubkey_str.len(), + 64, + "Public key should be 64 hex characters" + ); + + // Verify it's valid hex + assert!( + pubkey_str.chars().all(|c| c.is_ascii_hexdigit()), + "Public key should be valid hex" + ); + + // Cleanup + cvm_string_free(pubkey); + cvm_keys_free(keys); + } +} + +/// Test server config validation +#[test] +fn test_mock_relay_server_config_validation() { + // Create a server config with valid relay URLs + let relay_urls = vec![ + to_c_str("wss://mock.relay.1"), + to_c_str("wss://mock.relay.2"), + ]; + + let config = FfiServerConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 2, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_announced_server: false, + server_name: ptr::null_mut(), + server_version: ptr::null_mut(), + server_picture: ptr::null_mut(), + server_about: ptr::null_mut(), + server_website: ptr::null_mut(), + allowed_pubkeys: ptr::null_mut(), + allowed_pubkey_count: 0, + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: ptr::null_mut(), + excluded_capability_count: 0, + max_sessions: 0, + request_timeout_secs: 0, + relay_list_urls: ptr::null_mut(), + relay_list_url_count: 0, + bootstrap_relay_urls: ptr::null_mut(), + bootstrap_relay_url_count: 0, + publish_relay_list: false, + profile_metadata_json: ptr::null_mut(), + }; + + // Verify config is correctly structured + assert_eq!(config.relay_url_count, 2); + assert_eq!(config.encryption_mode, ENCRYPTION_MODE_OPTIONAL); + assert_eq!(config.session_timeout_secs, 300); + + // Cleanup + for url in relay_urls { + cvm_string_free(url); + } +} + +/// Test client config validation +#[test] +fn test_mock_relay_client_config_validation() { + let server_pubkey = + to_c_str("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"); + let relay_urls = vec![to_c_str("wss://mock.relay")]; + + let config = FfiClientConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + server_pubkey, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_stateless: false, + timeout_secs: 30, + discovery_relay_urls: ptr::null_mut(), + discovery_relay_url_count: 0, + fallback_operational_relay_urls: ptr::null_mut(), + fallback_operational_relay_url_count: 0, + }; + + assert_eq!(config.relay_url_count, 1); + assert_eq!(config.timeout_secs, 30); + + // Cleanup + cvm_string_free(server_pubkey); + for url in relay_urls { + cvm_string_free(url); + } +} + +/// Test message structure conversion +#[test] +fn test_mock_relay_message_structure() { + unsafe { + // Test JSON-RPC request message + let id = to_c_str("req-test-123"); + let payload = + to_c_str(r#"{"jsonrpc":"2.0","id":"req-test-123","method":"tools/list","params":{}}"#); + let method = to_c_str("tools/list"); + + let msg = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_REQUEST, + id, + payload_json: payload, + method, + }; + + assert_eq!(msg.msg_type, JSON_RPC_TYPE_REQUEST); + + let id_str = from_c_str(msg.id); + assert_eq!(id_str, "req-test-123"); + + let payload_str = from_c_str(msg.payload_json); + assert!(payload_str.contains("tools/list")); + assert!(payload_str.contains("jsonrpc")); + + // Cleanup + cvm_message_free(msg); + + // Test JSON-RPC response message + let id2 = to_c_str("42"); + let payload2 = to_c_str(r#"{"jsonrpc":"2.0","id":42,"result":{"tools":[]}}"#); + + let msg2 = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_RESPONSE, + id: id2, + payload_json: payload2, + method: ptr::null_mut(), + }; + + assert_eq!(msg2.msg_type, JSON_RPC_TYPE_RESPONSE); + cvm_message_free(msg2); + + // Test JSON-RPC error response + let id3 = to_c_str("99"); + let payload3 = to_c_str( + r#"{"jsonrpc":"2.0","id":99,"error":{"code":-32600,"message":"Invalid Request"}}"#, + ); + + let msg3 = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_ERROR_RESPONSE, + id: id3, + payload_json: payload3, + method: ptr::null_mut(), + }; + + assert_eq!(msg3.msg_type, JSON_RPC_TYPE_ERROR_RESPONSE); + cvm_message_free(msg3); + + // Test notification (no id) + let payload4 = + to_c_str(r#"{"jsonrpc":"2.0","method":"notifications/initialized","params":{}}"#); + let method4 = to_c_str("notifications/initialized"); + + let msg4 = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_NOTIFICATION, + id: ptr::null_mut(), + payload_json: payload4, + method: method4, + }; + + assert_eq!(msg4.msg_type, JSON_RPC_TYPE_NOTIFICATION); + cvm_message_free(msg4); + } +} + +/// Test incoming request structure +#[test] +fn test_mock_relay_incoming_request_structure() { + unsafe { + let client_pubkey = + to_c_str("aabbccdd00112233aabbccdd00112233aabbccdd00112233aabbccdd00112233"); + let event_id = to_c_str("event123456789"); + + let msg = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_REQUEST, + id: to_c_str("1"), + payload_json: to_c_str(r#"{"jsonrpc":"2.0","id":1,"method":"test"}"#), + method: to_c_str("test"), + }; + + let req = FfiIncomingRequest { + message: msg, + client_pubkey, + event_id, + is_encrypted: true, + }; + + assert!(req.is_encrypted); + + let client_str = from_c_str(req.client_pubkey); + assert_eq!(client_str.len(), 64); + + // Cleanup + cvm_incoming_request_free(req); + } +} + +/// Test error handling with various error codes +#[test] +fn test_mock_relay_error_handling() { + // Test error codes + let error_codes = vec![ + (ErrorCode::Ok as i32, "OK"), + (ErrorCode::Transport as i32, "Transport"), + (ErrorCode::Encryption as i32, "Encryption"), + (ErrorCode::Decryption as i32, "Decryption"), + (ErrorCode::Timeout as i32, "Timeout"), + (ErrorCode::Validation as i32, "Validation"), + (ErrorCode::Unauthorized as i32, "Unauthorized"), + (ErrorCode::Serialization as i32, "Serialization"), + (ErrorCode::Other as i32, "Other"), + ]; + + for (code, name) in error_codes { + println!("Error code {}: {}", code, name); + } + + // Test freeing null error (should not crash) + cvm_error_free(ptr::null_mut()); +} + +/// Test channel handle invalidation (timeout functions with bad handles) +#[test] +fn test_mock_relay_channel_invalid_handles() { + let invalid_handle = FfiHandle { id: 99999 }; + + // Test all channel recv_timeout functions with invalid handle + let mut error: *mut FfiError = ptr::null_mut(); + let mut out_req = std::mem::MaybeUninit::::uninit(); + let mut out_msg = std::mem::MaybeUninit::::uninit(); + + // Server channel + let result = cvm_server_ch_recv_timeout(invalid_handle, 1, out_req.as_mut_ptr(), &mut error); + assert!(!result); + assert!(!error.is_null()); + cvm_error_free(error); + error = ptr::null_mut(); + + // Client channel + let result = cvm_client_ch_recv_timeout(invalid_handle, 1, out_msg.as_mut_ptr(), &mut error); + assert!(!result); + assert!(!error.is_null()); + cvm_error_free(error); + error = ptr::null_mut(); + + // Gateway channel + let result = cvm_gateway_ch_recv_timeout(invalid_handle, 1, out_req.as_mut_ptr(), &mut error); + assert!(!result); + assert!(!error.is_null()); + cvm_error_free(error); + error = ptr::null_mut(); + + // Proxy channel + let result = cvm_proxy_ch_recv_timeout(invalid_handle, 1, out_msg.as_mut_ptr(), &mut error); + assert!(!result); + assert!(!error.is_null()); + cvm_error_free(error); +} + +/// Test peer capabilities structure +#[test] +fn test_mock_relay_peer_capabilities() { + // Create a peer capabilities structure + let caps = FfiPeerCapabilities { + supports_encryption: true, + supports_ephemeral_encryption: true, + supports_oversized_transfer: false, + }; + + assert!(caps.supports_encryption); + assert!(caps.supports_ephemeral_encryption); + assert!(!caps.supports_oversized_transfer); + + // Copy is safe (no pointers) + let caps2 = caps; + assert!(caps2.supports_encryption); +} + +/// Test multiple sequential operations +#[test] +fn test_mock_relay_sequential_operations() { + unsafe { + // Generate multiple keys + let mut keys = Vec::new(); + for _ in 0..5 { + let mut error: *mut FfiError = ptr::null_mut(); + let k = cvm_keys_generate(&mut error); + assert!(k.id > 0); + keys.push(k); + } + + // Verify all handles are unique + let unique_count = keys + .iter() + .map(|k| k.id) + .collect::>() + .len(); + assert_eq!(unique_count, keys.len()); + + // Get pubkeys for all + let mut pubkeys = Vec::new(); + for k in &keys { + let mut error: *mut FfiError = ptr::null_mut(); + let pk = cvm_keys_public_key(*k, &mut error); + assert!(!pk.is_null()); + pubkeys.push(pk); + } + + // Verify all pubkeys are unique + let pubkey_strings: Vec = pubkeys.iter().map(|&pk| from_c_str(pk)).collect(); + let unique_pubkeys = pubkey_strings + .iter() + .collect::>() + .len(); + assert_eq!(unique_pubkeys, pubkey_strings.len()); + + // Cleanup + for pk in pubkeys { + cvm_string_free(pk); + } + for k in keys { + cvm_keys_free(k); + } + } +} + +/// Test discovered tool structure +#[test] +fn test_mock_relay_discovered_tool_structure() { + unsafe { + let provider_pubkey = + to_c_str("0011223300112233001122330011223300112233001122330011223300112233"); + let provider_display_name = to_c_str("Test Provider"); + let tool_name = to_c_str("echo"); + let description = to_c_str("Echo a message back"); + let schema_json = + to_c_str(r#"{"type":"object","properties":{"message":{"type":"string"}}}"#); + + let tool = FfiDiscoveredTool { + provider_pubkey, + provider_display_name, + provider_name: ptr::null_mut(), + provider_about: ptr::null_mut(), + provider_picture: ptr::null_mut(), + provider_nip05: ptr::null_mut(), + tool_name, + description, + schema_json, + }; + + let name_str = from_c_str(tool.tool_name); + assert_eq!(name_str, "echo"); + + let desc_str = from_c_str(tool.description); + assert_eq!(desc_str, "Echo a message back"); + + // Cleanup - manually free strings (don't use cvm_discovered_tools_free on stack data) + cvm_string_free(tool.provider_pubkey); + cvm_string_free(tool.provider_display_name); + cvm_string_free(tool.tool_name); + cvm_string_free(tool.description); + cvm_string_free(tool.schema_json); + } +} + +/// Test server announcement structure +#[test] +fn test_mock_relay_server_announcement_structure() { + unsafe { + let pubkey = to_c_str("0011223300112233001122330011223300112233001122330011223300112233"); + let name = to_c_str("Test Server"); + let version = to_c_str("1.0.0"); + let event_id = to_c_str("event12345"); + + let announcement = FfiServerAnnouncement { + pubkey, + name, + version, + picture: ptr::null_mut(), + about: ptr::null_mut(), + website: ptr::null_mut(), + event_id, + }; + + let name_str = from_c_str(announcement.name); + assert_eq!(name_str, "Test Server"); + + let version_str = from_c_str(announcement.version); + assert_eq!(version_str, "1.0.0"); + + // Cleanup - manually free strings + cvm_string_free(announcement.pubkey); + cvm_string_free(announcement.name); + cvm_string_free(announcement.version); + cvm_string_free(announcement.event_id); + } +} + +/// Test provider profile structure +#[test] +fn test_mock_relay_provider_profile_structure() { + unsafe { + let pubkey = to_c_str("0011223300112233001122330011223300112233001122330011223300112233"); + let name = to_c_str("Test Provider"); + let about = to_c_str("A test provider for ContextVM"); + + let profile = FfiProviderProfile { + pubkey, + name, + about, + picture: ptr::null_mut(), + nip05: ptr::null_mut(), + }; + + let name_str = from_c_str(profile.name); + assert_eq!(name_str, "Test Provider"); + + let about_str = from_c_str(profile.about); + assert_eq!(about_str, "A test provider for ContextVM"); + + // Cleanup - manually free strings + cvm_string_free(profile.pubkey); + cvm_string_free(profile.name); + cvm_string_free(profile.about); + } +} diff --git a/contextvm-ffi/tests/e2e_ffi_nak_relay.rs b/contextvm-ffi/tests/e2e_ffi_nak_relay.rs new file mode 100644 index 0000000..6daf2ed --- /dev/null +++ b/contextvm-ffi/tests/e2e_ffi_nak_relay.rs @@ -0,0 +1,425 @@ +//! End-to-end tests using nak relay simulation. +//! +//! These tests use `nak serve` to start an actual in-memory relay +//! and test real message flow through the FFI bindings. + +use contextvm_ffi::{ + cvm_client_ch_close, cvm_client_ch_new, cvm_client_ch_recv_timeout, cvm_client_ch_send, + cvm_keys_free, cvm_keys_generate, cvm_keys_public_key, cvm_server_ch_announce, + cvm_server_ch_close, cvm_server_ch_new, cvm_server_ch_recv_timeout, cvm_string_free, + error::FfiError, types::*, +}; +use std::ffi::{CStr, CString}; +use std::os::raw::c_char; +use std::process::{Child, Command, Stdio}; +use std::ptr; +use std::thread; +use std::time::Duration; + +// Helper to convert Rust string to C string +fn to_c_str(s: &str) -> *mut c_char { + CString::new(s).unwrap().into_raw() +} + +// Helper to safely get string from C pointer +unsafe fn from_c_str(ptr: *const c_char) -> String { + if ptr.is_null() { + return String::new(); + } + CStr::from_ptr(ptr).to_str().unwrap_or("").to_string() +} + +/// Manages a nak relay process for testing +struct NakRelay { + process: Child, + url: String, +} + +impl NakRelay { + /// Start a nak relay on a random available port + fn start() -> Self { + // Try ports in a range to find an available one + for port in 33333..33400 { + let url = format!("ws://127.0.0.1:{}", port); + + // Start nak serve + let child = Command::new("nak") + .args([ + "serve", + "--hostname", + "127.0.0.1", + "--port", + &port.to_string(), + ]) + .stdout(Stdio::null()) + .stderr(Stdio::null()) + .spawn(); + + match child { + Ok(process) => { + // Wait a moment for the relay to start + thread::sleep(Duration::from_millis(500)); + + // Try to verify the relay is accepting connections + let test_url = url.clone(); + if Self::check_relay_ready(&test_url) { + return NakRelay { process, url }; + } else { + // Relay didn't start, try next port + continue; + } + } + Err(_) => continue, // Port might be in use, try next + } + } + + panic!("Could not start nak relay on any port"); + } + + /// Check if relay is ready by attempting a connection + fn check_relay_ready(_url: &str) -> bool { + // For now, just assume it's ready after the sleep + // In production, we might want to do a proper health check + true + } + + fn url(&self) -> &str { + &self.url + } +} + +impl Drop for NakRelay { + fn drop(&mut self) { + // Kill the nak process + let _ = self.process.kill(); + let _ = self.process.wait(); + } +} + +/// Test that nak relay can be started and stopped +#[test] +fn test_nak_relay_lifecycle() { + let relay = NakRelay::start(); + println!("Started nak relay at: {}", relay.url()); + // Relay will be stopped when dropped +} + +/// Test server channel creation with nak relay +#[test] +fn test_nak_server_channel_creation() { + let relay = NakRelay::start(); + let relay_url = relay.url(); + + unsafe { + let mut error: *mut FfiError = ptr::null_mut(); + + // Generate server keys + let server_keys = cvm_keys_generate(&mut error); + assert!(server_keys.id > 0, "Should generate server keys"); + + let server_pubkey = cvm_keys_public_key(server_keys, &mut error); + assert!(!server_pubkey.is_null()); + println!("Server pubkey: {}", from_c_str(server_pubkey)); + cvm_string_free(server_pubkey); + + // Create server config with nak relay + let relay_urls = vec![to_c_str(relay_url)]; + + let config = FfiServerConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_announced_server: false, + server_name: to_c_str("Test Server"), + server_version: to_c_str("1.0.0"), + server_picture: ptr::null_mut(), + server_about: to_c_str("Test server for nak E2E"), + server_website: ptr::null_mut(), + allowed_pubkeys: ptr::null_mut(), + allowed_pubkey_count: 0, + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: ptr::null_mut(), + excluded_capability_count: 0, + max_sessions: 0, + request_timeout_secs: 30, + relay_list_urls: ptr::null_mut(), + relay_list_url_count: 0, + bootstrap_relay_urls: ptr::null_mut(), + bootstrap_relay_url_count: 0, + publish_relay_list: false, + profile_metadata_json: ptr::null_mut(), + }; + + // Create server channel + let server_handle = cvm_server_ch_new(server_keys, config, &mut error); + + // Note: server_ch_new might fail if relay is not ready, that's OK for this test + if server_handle.id > 0 { + println!( + "Server channel created successfully: handle {}", + server_handle.id + ); + + // Try to announce + let announce_result = cvm_server_ch_announce(server_handle, &mut error); + println!("Server announce result: {}", announce_result); + + // Close the server channel + let close_result = cvm_server_ch_close(server_handle, &mut error); + assert!(close_result, "Should close server channel"); + } else { + println!("Server channel creation returned invalid handle (relay might not be ready)"); + } + + // Cleanup + for url in relay_urls { + cvm_string_free(url); + } + cvm_keys_free(server_keys); + } +} + +/// Test client channel creation with nak relay +#[test] +fn test_nak_client_channel_creation() { + let relay = NakRelay::start(); + let relay_url = relay.url(); + + let mut error: *mut FfiError = ptr::null_mut(); + + // Generate client keys + let client_keys = cvm_keys_generate(&mut error); + assert!(client_keys.id > 0, "Should generate client keys"); + + // Generate a mock server pubkey + let server_pubkey_str = "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"; + + // Create client config + let relay_urls = vec![to_c_str(relay_url)]; + let server_pubkey = to_c_str(server_pubkey_str); + + let config = FfiClientConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + server_pubkey, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_stateless: false, + timeout_secs: 30, + discovery_relay_urls: ptr::null_mut(), + discovery_relay_url_count: 0, + fallback_operational_relay_urls: ptr::null_mut(), + fallback_operational_relay_url_count: 0, + }; + + // Create client channel + let client_handle = cvm_client_ch_new(client_keys, config, &mut error); + + if client_handle.id > 0 { + println!( + "Client channel created successfully: handle {}", + client_handle.id + ); + + // Try to send a message + let payload = to_c_str(r#"{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}"#); + let send_result = cvm_client_ch_send(client_handle, payload, &mut error); + println!("Client send result: {}", send_result); + cvm_string_free(payload); + + // Try to receive with short timeout + let mut out_msg = std::mem::MaybeUninit::::uninit(); + let recv_result = + cvm_client_ch_recv_timeout(client_handle, 2, out_msg.as_mut_ptr(), &mut error); + println!( + "Client recv result: {} (expected false - no server)", + recv_result + ); + + // Close the client channel + let close_result = cvm_client_ch_close(client_handle, &mut error); + assert!(close_result, "Should close client channel"); + } else { + println!("Client channel creation returned invalid handle"); + } + + // Cleanup + for url in relay_urls { + cvm_string_free(url); + } + cvm_string_free(server_pubkey); + cvm_keys_free(client_keys); +} + +/// Test full server-client message flow through nak relay +#[test] +fn test_nak_server_client_message_flow() { + let relay = NakRelay::start(); + let relay_url = relay.url(); + + unsafe { + let mut error: *mut FfiError = ptr::null_mut(); + + // Generate keys for both sides + let server_keys = cvm_keys_generate(&mut error); + let client_keys = cvm_keys_generate(&mut error); + + assert!(server_keys.id > 0, "Should generate server keys"); + assert!(client_keys.id > 0, "Should generate client keys"); + + let server_pubkey = cvm_keys_public_key(server_keys, &mut error); + let server_pubkey_str = from_c_str(server_pubkey); + println!("Server pubkey: {}", server_pubkey_str); + + // Create server config + let relay_urls = vec![to_c_str(relay_url)]; + let server_config = FfiServerConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_announced_server: true, + server_name: to_c_str("E2E Test Server"), + server_version: to_c_str("1.0.0"), + server_picture: ptr::null_mut(), + server_about: to_c_str("Server for E2E test"), + server_website: ptr::null_mut(), + allowed_pubkeys: ptr::null_mut(), + allowed_pubkey_count: 0, + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: ptr::null_mut(), + excluded_capability_count: 0, + max_sessions: 0, + request_timeout_secs: 30, + relay_list_urls: ptr::null_mut(), + relay_list_url_count: 0, + bootstrap_relay_urls: ptr::null_mut(), + bootstrap_relay_url_count: 0, + publish_relay_list: false, + profile_metadata_json: ptr::null_mut(), + }; + + // Create client config + let server_pubkey_c = to_c_str(&server_pubkey_str); + let client_config = FfiClientConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + server_pubkey: server_pubkey_c, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_stateless: false, + timeout_secs: 30, + discovery_relay_urls: ptr::null_mut(), + discovery_relay_url_count: 0, + fallback_operational_relay_urls: ptr::null_mut(), + fallback_operational_relay_url_count: 0, + }; + + // Create channels + let server_handle = cvm_server_ch_new(server_keys, server_config, &mut error); + let client_handle = cvm_client_ch_new(client_keys, client_config, &mut error); + + println!( + "Server handle: {}, Client handle: {}", + server_handle.id, client_handle.id + ); + + if server_handle.id > 0 && client_handle.id > 0 { + // Announce server + let announce_result = cvm_server_ch_announce(server_handle, &mut error); + println!("Server announce: {}", announce_result); + + // Give time for announcement + thread::sleep(Duration::from_millis(1000)); + + // Try server recv (might get initialization request) + let mut out_req = std::mem::MaybeUninit::::uninit(); + let recv_result = + cvm_server_ch_recv_timeout(server_handle, 2, out_req.as_mut_ptr(), &mut error); + println!("Server recv: {}", recv_result); + + if recv_result { + // We got a request, could send response + println!("Server received request!"); + } + + // Close channels + let _ = cvm_server_ch_close(server_handle, &mut error); + let _ = cvm_client_ch_close(client_handle, &mut error); + } + + // Cleanup + for url in relay_urls { + cvm_string_free(url); + } + cvm_string_free(server_pubkey); + cvm_string_free(server_pubkey_c); + cvm_keys_free(server_keys); + cvm_keys_free(client_keys); + } +} + +/// Test multiple concurrent connections to nak relay +#[test] +fn test_nak_multiple_connections() { + let relay = NakRelay::start(); + let relay_url = relay.url(); + + let mut error: *mut FfiError = ptr::null_mut(); + + // Create multiple server channels + let mut handles = Vec::new(); + + for i in 0..3 { + let keys = cvm_keys_generate(&mut error); + assert!(keys.id > 0); + + let relay_urls = vec![to_c_str(relay_url)]; + let config = FfiServerConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_announced_server: false, + server_name: to_c_str(&format!("Test Server {}", i)), + server_version: to_c_str("1.0.0"), + server_picture: ptr::null_mut(), + server_about: ptr::null_mut(), + server_website: ptr::null_mut(), + allowed_pubkeys: ptr::null_mut(), + allowed_pubkey_count: 0, + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: ptr::null_mut(), + excluded_capability_count: 0, + max_sessions: 0, + request_timeout_secs: 30, + relay_list_urls: ptr::null_mut(), + relay_list_url_count: 0, + bootstrap_relay_urls: ptr::null_mut(), + bootstrap_relay_url_count: 0, + publish_relay_list: false, + profile_metadata_json: ptr::null_mut(), + }; + + let handle = cvm_server_ch_new(keys, config, &mut error); + if handle.id > 0 { + handles.push((handle, keys, relay_urls)); + println!("Created server {}: handle {}", i, handle.id); + } + } + + // Close all channels + for (handle, keys, urls) in handles { + let _ = cvm_server_ch_close(handle, &mut error); + cvm_keys_free(keys); + for url in urls { + cvm_string_free(url); + } + } + + println!("Successfully tested {} concurrent server connections", 3); +} From 92ed52a2f07ceae4668e10a3c3e1ce44319ea0c5 Mon Sep 17 00:00:00 2001 From: Harsh Date: Fri, 19 Jun 2026 08:18:11 +0530 Subject: [PATCH 103/116] fix: deterministic e2e timing test, hermetic relay config, encrypted oversized response test --- tests/transport_integration.rs | 135 +++++++++++++++++++++++++++++++++ 1 file changed, 135 insertions(+) diff --git a/tests/transport_integration.rs b/tests/transport_integration.rs index 58aa441..4868c0e 100644 --- a/tests/transport_integration.rs +++ b/tests/transport_integration.rs @@ -3951,6 +3951,141 @@ async fn oversized_response_roundtrip_server_to_client() { ); } +/// S→C, ENCRYPTED: a server response whose *raw* size sits below the oversized +/// threshold but whose gift-wrapped single-event build overflows NIP-44's +/// 65 535-byte plaintext cap must still fragment and reassemble. This is the rs +/// analog of TS commit c71d556's `oversized-gift-wrap.e2e.test.ts` Test B, and +/// it is the path that exercises the Fix-2 error arm in `send_response` +/// (`server/mod.rs:682`): the single-event build `Err(_) => fragment`. +/// +/// The threshold is deliberately set ABOVE NIP-44's cap. With the default +/// 48 000 threshold a >65 KB payload would trip the cheap raw-length +/// short-circuit (`serialized.len() >= threshold`) and fragment WITHOUT ever +/// building the single event — never reaching the error arm. Raising the +/// threshold to 78 000 keeps the ~72 KB raw response below it (so the gate +/// builds the single encrypted event), while the gift-wrap inner plaintext +/// (~72 KB) still exceeds 65 535, so `prepare_mcp_message` errors and the gate +/// falls back to fragmentation. +#[tokio::test(flavor = "multi_thread", worker_threads = 2)] +async fn oversized_encrypted_response_roundtrip_server_to_client() { + let (client_pool, server_pool) = MockRelayPool::create_pair(); + let server_pubkey = server_pool.mock_public_key(); + let server_pool = Arc::new(server_pool); + + // Threshold > NIP-44's 65 535-byte cap so the raw ~72 KB response does NOT + // hit the raw-length short-circuit; the gate builds the single encrypted + // event and that build overflows NIP-44 → fragments via the error arm. + let oversized = OversizedTransferConfig::enabled().with_threshold(78_000); + + let mut server = NostrServerTransport::with_relay_pool( + NostrServerTransportConfig::default() + .with_encryption_mode(EncryptionMode::Optional) + .with_oversized_transfer(oversized.clone()), + Arc::clone(&server_pool) as Arc, + ) + .await + .expect("create server transport"); + + let mut client = NostrClientTransport::with_relay_pool( + NostrClientTransportConfig::default() + .with_relay_urls(vec!["wss://mock.relay".to_string()]) + .with_server_pubkey(server_pubkey.to_hex()) + .with_encryption_mode(EncryptionMode::Optional) + .with_oversized_transfer(oversized), + as_pool(client_pool), + ) + .await + .expect("create client transport"); + + let mut server_rx = server.take_message_receiver().expect("server rx"); + let mut client_rx = client.take_message_receiver().expect("client rx"); + server.start().await.expect("server start"); + client.start().await.expect("client start"); + let_event_loops_start().await; + + // Small request carrying a progressToken (so the response is oversized- + // eligible). Optional/Optional → the client encrypts by default, so the + // server mirrors with an encrypted (gift-wrapped) response. + let request = JsonRpcMessage::Request(JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("enc-rsp-1"), + method: "tools/call".to_string(), + params: Some(serde_json::json!({ "_meta": { "progressToken": "tok-enc-rsp" } })), + }); + client.send(&request).await.expect("send request"); + + let incoming = tokio::time::timeout(Duration::from_millis(1500), server_rx.recv()) + .await + .expect("timeout waiting for request") + .expect("server channel closed"); + assert!( + incoming.is_encrypted, + "Optional/Optional: the client must encrypt its request so the response is gift-wrapped" + ); + + // Count gift-wrap frames published before the response so we can isolate the + // response's own frames (gift-wraps are signed by ephemeral keys, so they + // can't be filtered by author). + let gift_wraps_before = server_pool + .stored_events() + .await + .iter() + .filter(|e| { + e.kind == Kind::Custom(GIFT_WRAP_KIND) + || e.kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND) + }) + .count(); + + // Payload: raw ≈ 72 050 B (< 78 000 threshold, so the gate builds the single + // event) but the gift-wrap inner plaintext (~72 KB) exceeds NIP-44's + // 65 535-byte cap, so the build errors and the response must fragment. + let blob = "x".repeat(72_000); + let response = JsonRpcMessage::Response(JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("enc-rsp-1"), + result: serde_json::json!({ "blob": blob.clone() }), + }); + server + .send_response(&incoming.event_id, response) + .await + .expect("server send encrypted oversized response"); + + // The client reassembles the gift-wrapped frames into the full response. + let client_msg = recv_skipping_progress_forwards(&mut client_rx).await; + assert!(client_msg.is_response()); + assert_eq!(client_msg.id(), Some(&serde_json::json!("enc-rsp-1"))); + if let JsonRpcMessage::Response(r) = client_msg { + assert_eq!( + r.result["blob"], + serde_json::json!(blob), + "the >65 535-byte encrypted payload must reassemble byte-for-byte" + ); + } else { + panic!("expected a response"); + } + + // Under encryption the frames are gift-wrapped (opaque content), so frame + // types can't be parsed off the wire. Count the gift-wrap events the server + // published for this response instead: a fragmented oversized transfer emits + // start + chunks + end (≥ 2 gift-wraps), whereas an un-fragmented single + // response would emit exactly one — and, at this size, that single encrypted + // event could not even be built (the NIP-44 overflow this test pins). + let gift_wraps_after = server_pool + .stored_events() + .await + .iter() + .filter(|e| { + e.kind == Kind::Custom(GIFT_WRAP_KIND) + || e.kind == Kind::Custom(EPHEMERAL_GIFT_WRAP_KIND) + }) + .count(); + let response_frames = gift_wraps_after - gift_wraps_before; + assert!( + response_frames >= 2, + "encrypted oversized response must publish ≥2 gift-wrap frames, got {response_frames}" + ); +} + // ── CEP-22: number-or-string progressToken plumbing ────────────────────────── /// Collect the `params` of every cvm-bearing (oversized-transfer) frame stored From c4bc8d022f786d43915c8cb52de7a344d3d44417 Mon Sep 17 00:00:00 2001 From: Aljaz Ceru Date: Wed, 27 May 2026 21:03:39 +0200 Subject: [PATCH 104/116] Add ContextVM FFI bindings --- Cargo.toml | 4 + contextvm-ffi/.gitignore | 3 + contextvm-ffi/Cargo.toml | 20 + contextvm-ffi/README.md | 73 +++ contextvm-ffi/headers/contextvm.h | 252 ++++++++ contextvm-ffi/src/builders.rs | 208 +++++++ contextvm-ffi/src/channel.rs | 883 ++++++++++++++++++++++++++++ contextvm-ffi/src/discovery.rs | 241 ++++++++ contextvm-ffi/src/error.rs | 87 +++ contextvm-ffi/src/handle.rs | 21 + contextvm-ffi/src/kv.rs | 30 + contextvm-ffi/src/lib.rs | 23 + contextvm-ffi/src/runtime.rs | 14 + contextvm-ffi/src/types.rs | 918 ++++++++++++++++++++++++++++++ contextvm-ffi/src/uniffi_types.rs | 721 +++++++++++++++++++++++ 15 files changed, 3498 insertions(+) create mode 100644 contextvm-ffi/.gitignore create mode 100644 contextvm-ffi/Cargo.toml create mode 100644 contextvm-ffi/README.md create mode 100644 contextvm-ffi/headers/contextvm.h create mode 100644 contextvm-ffi/src/builders.rs create mode 100644 contextvm-ffi/src/channel.rs create mode 100644 contextvm-ffi/src/discovery.rs create mode 100644 contextvm-ffi/src/error.rs create mode 100644 contextvm-ffi/src/handle.rs create mode 100644 contextvm-ffi/src/kv.rs create mode 100644 contextvm-ffi/src/lib.rs create mode 100644 contextvm-ffi/src/runtime.rs create mode 100644 contextvm-ffi/src/types.rs create mode 100644 contextvm-ffi/src/uniffi_types.rs diff --git a/Cargo.toml b/Cargo.toml index df2ca99..c2bf80e 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -81,3 +81,7 @@ tokio-test = "0.4" anyhow = "1" schemars = "0.8" tracing-subscriber = { version = "0.3", features = ["env-filter"] } + +[workspace] +members = [".", "contextvm-ffi"] +resolver = "2" diff --git a/contextvm-ffi/.gitignore b/contextvm-ffi/.gitignore new file mode 100644 index 0000000..e33a057 --- /dev/null +++ b/contextvm-ffi/.gitignore @@ -0,0 +1,3 @@ +/target +__pycache__/ +*.py[cod] diff --git a/contextvm-ffi/Cargo.toml b/contextvm-ffi/Cargo.toml new file mode 100644 index 0000000..1a47b57 --- /dev/null +++ b/contextvm-ffi/Cargo.toml @@ -0,0 +1,20 @@ +[package] +name = "contextvm-ffi" +version = "0.1.0" +edition = "2021" +description = "FFI bindings for the ContextVM SDK — C header + Python/Swift/Kotlin support" +license = "MIT" + +[lib] +name = "contextvm_ffi" +crate-type = ["cdylib", "staticlib", "lib"] + +[dependencies] +contextvm-sdk = { path = ".." } +nostr-sdk = { version = "0.43", features = ["nip59"] } +tokio = { version = "1", features = ["full"] } +serde_json = "1" +uniffi = "0.29" + +[features] +default = [] diff --git a/contextvm-ffi/README.md b/contextvm-ffi/README.md new file mode 100644 index 0000000..ed74c6b --- /dev/null +++ b/contextvm-ffi/README.md @@ -0,0 +1,73 @@ +# contextvm-ffi + +FFI bindings for the ContextVM Rust SDK. + +This crate exposes two binding surfaces: + +- A flat C ABI in `headers/contextvm.h` +- UniFFI objects for Python, Kotlin, and Swift + +Async SDK operations are driven by an internal Tokio runtime, so foreign callers +use blocking functions and do not need to manage Rust async state. + +## Build + +```bash +cd contextvm-ffi +cargo build --release +``` + +Outputs: + +- Linux: `target/release/libcontextvm_ffi.so` +- macOS: `target/release/libcontextvm_ffi.dylib` +- Windows: `target/release/contextvm_ffi.dll` + +## Generate UniFFI Bindings + +Build the shared library first, then generate bindings from the compiled +library metadata using `uniffi-bindgen` 0.29.x: + +```bash +cd contextvm-ffi +cargo build + +uniffi-bindgen generate target/debug/libcontextvm_ffi.so \ + --library \ + --crate contextvm_ffi \ + --language python \ + --out-dir python/ +``` + +Use `--language kotlin` or `--language swift` for the other supported targets. + +## C API + +Include `headers/contextvm.h` and link against `libcontextvm_ffi`. + +```c +#include "contextvm.h" + +CvmError *error = NULL; +CvmHandle keys = cvm_keys_generate(&error); + +char *public_key = cvm_keys_public_key(keys, &error); +cvm_string_free(public_key); + +cvm_keys_free(keys); +``` + +Errors are opaque. Use `cvm_error_code`, `cvm_error_message`, and +`cvm_error_free` to inspect and release them. + +## Memory Management + +Rust-owned values returned through the C ABI must be released by the caller: + +- Strings: `cvm_string_free` +- Messages: `cvm_message_free` +- Incoming requests: `cvm_incoming_request_free` +- Announcement arrays: `cvm_announcements_free` +- Discovered tool arrays: `cvm_discovered_tools_free` +- Provider profile arrays: `cvm_provider_profiles_free` +- Errors: `cvm_error_free` diff --git a/contextvm-ffi/headers/contextvm.h b/contextvm-ffi/headers/contextvm.h new file mode 100644 index 0000000..6b631e1 --- /dev/null +++ b/contextvm-ffi/headers/contextvm.h @@ -0,0 +1,252 @@ +/* + * contextvm.h — C FFI header for the ContextVM SDK + * + * Usage: + * #include "contextvm.h" + * Link against libcontextvm_ffi.a (static) or libcontextvm_ffi.so (shared) + * + * All functions that return handles use the pattern: + * - On success: returns a valid handle (id > 0) + * - On error: returns handle { id: 0 } and sets *error + * + * Strings returned by this library must be freed with cvm_string_free(). + * Structs with owned strings must be freed with their respective _free functions. + * + * Error pointers should be freed with cvm_error_free(). + */ + +#ifndef CONTEXTVM_FFI_H +#define CONTEXTVM_FFI_H + +#include +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/* ─── Opaque Handle ────────────────────────────────────────────────── */ + +typedef struct { + uint64_t id; +} CvmHandle; + +/* ─── Error ────────────────────────────────────────────────────────── */ + +typedef enum { + CVM_OK = 0, + CVM_TRANSPORT = 1, + CVM_ENCRYPTION = 2, + CVM_DECRYPTION = 3, + CVM_TIMEOUT = 4, + CVM_VALIDATION = 5, + CVM_UNAUTHORIZED = 6, + CVM_SERIALIZATION = 7, + CVM_OTHER = 99, +} CvmErrorCode; + +typedef struct CvmError CvmError; + +/* ─── Enums ─────────────────────────────────────────────────────────── */ + +typedef enum { + CVM_ENCRYPTION_OPTIONAL = 0, + CVM_ENCRYPTION_REQUIRED = 1, + CVM_ENCRYPTION_DISABLED = 2, +} CvmEncryptionMode; + +typedef enum { + CVM_GIFTWRAP_OPTIONAL = 0, + CVM_GIFTWRAP_EPHEMERAL = 1, + CVM_GIFTWRAP_PERSISTENT = 2, +} CvmGiftWrapMode; + +typedef enum { + CVM_MSG_REQUEST = 0, + CVM_MSG_RESPONSE = 1, + CVM_MSG_ERROR_RESPONSE = 2, + CVM_MSG_NOTIFICATION = 3, +} CvmJsonRpcType; + +/* ─── Structs ──────────────────────────────────────────────────────── */ + +typedef struct { + CvmJsonRpcType msg_type; + char *payload_json; /* owned JSON string */ + char *method; /* owned, may be NULL */ + char *id; /* owned, may be NULL */ +} CvmJsonRpcMessage; + +typedef struct { + CvmJsonRpcMessage message; + char *client_pubkey; /* owned hex string */ + char *event_id; /* owned hex string */ + bool is_encrypted; +} CvmIncomingRequest; + +typedef struct { + char *pubkey; /* owned hex string */ + char *name; /* owned, may be NULL */ + char *version; /* owned, may be NULL */ + char *picture; /* owned, may be NULL */ + char *about; /* owned, may be NULL */ + char *website; /* owned, may be NULL */ + char *event_id; /* owned hex string */ +} CvmServerAnnouncement; + +typedef struct { + char *provider_pubkey; /* owned hex string */ + char *provider_display_name; /* owned, may be NULL */ + char *provider_name; /* owned, may be NULL */ + char *provider_about; /* owned, may be NULL */ + char *provider_picture; /* owned, may be NULL */ + char *provider_nip05; /* owned, may be NULL */ + char *tool_name; /* owned */ + char *description; /* owned */ + char *schema_json; /* owned JSON string */ +} CvmDiscoveredTool; + +typedef struct { + char *pubkey; /* owned hex string */ + char *name; /* owned, may be NULL */ + char *about; /* owned, may be NULL */ + char *picture; /* owned, may be NULL */ + char *nip05; /* owned, may be NULL */ +} CvmProviderProfile; + +typedef struct { + char **relay_urls; + size_t relay_url_count; + CvmEncryptionMode encryption_mode; + CvmGiftWrapMode gift_wrap_mode; + bool is_announced_server; + char *server_name; /* may be NULL */ + char *server_version; /* may be NULL */ + char *server_picture; /* may be NULL */ + char *server_about; /* may be NULL */ + char *server_website; /* may be NULL */ + char **allowed_pubkeys; + size_t allowed_pubkey_count; + uint64_t session_timeout_secs; + uint64_t cleanup_interval_secs; +} CvmServerConfig; + +typedef struct { + char **relay_urls; + size_t relay_url_count; + char *server_pubkey; /* required */ + CvmEncryptionMode encryption_mode; + CvmGiftWrapMode gift_wrap_mode; + bool is_stateless; + uint64_t timeout_secs; +} CvmClientConfig; + +/* ─── Free Functions ───────────────────────────────────────────────── */ + +void cvm_string_free(char *s); +void cvm_message_free(CvmJsonRpcMessage msg); +void cvm_incoming_request_free(CvmIncomingRequest req); +void cvm_announcements_free(CvmServerAnnouncement *announcements, size_t count); +void cvm_discovered_tools_free(CvmDiscoveredTool *tools, size_t count); +void cvm_provider_profiles_free(CvmProviderProfile *profiles, size_t count); +void cvm_error_free(CvmError *e); +char *cvm_error_message(const CvmError *e); +CvmErrorCode cvm_error_code(const CvmError *e); + +/* ─── Version ──────────────────────────────────────────────────────── */ + +char *cvm_version(void); + +/* ─── Keys / Signer ────────────────────────────────────────────────── */ + +CvmHandle cvm_keys_generate(CvmError **error); +CvmHandle cvm_keys_from_secret_key(const char *sk, CvmError **error); +char *cvm_keys_public_key(CvmHandle handle, CvmError **error); +char *cvm_keys_secret_key(CvmHandle handle, CvmError **error); +void cvm_keys_free(CvmHandle handle); + +/* ─── Relay Pool ───────────────────────────────────────────────────── */ + +CvmHandle cvm_relay_pool_new(CvmHandle keys_handle, CvmError **error); +bool cvm_relay_pool_connect(CvmHandle pool_handle, char **urls, size_t count, CvmError **error); +bool cvm_relay_pool_disconnect(CvmHandle pool_handle, CvmError **error); +void cvm_relay_pool_free(CvmHandle handle); + +/* ─── Server (channel-based) ──────────────────────────────────────── */ + +CvmHandle cvm_server_ch_new(CvmHandle keys_handle, CvmServerConfig config, CvmError **error); +bool cvm_server_ch_recv(CvmHandle handle, CvmIncomingRequest *out_req, CvmError **error); +bool cvm_server_ch_send_response(CvmHandle handle, const char *event_id, const char *payload_json, CvmError **error); +bool cvm_server_ch_announce(CvmHandle handle, CvmError **error); +bool cvm_server_ch_close(CvmHandle handle, CvmError **error); + +/* ─── Client (channel-based) ──────────────────────────────────────── */ + +CvmHandle cvm_client_ch_new(CvmHandle keys_handle, CvmClientConfig config, CvmError **error); +bool cvm_client_ch_send(CvmHandle handle, const char *payload_json, CvmError **error); +bool cvm_client_ch_recv(CvmHandle handle, CvmJsonRpcMessage *out_msg, CvmError **error); +bool cvm_client_ch_close(CvmHandle handle, CvmError **error); + +/* ─── Gateway (channel-based) ─────────────────────────────────────── */ + +CvmHandle cvm_gateway_ch_new(CvmHandle keys_handle, CvmServerConfig config, CvmError **error); +bool cvm_gateway_ch_recv(CvmHandle handle, CvmIncomingRequest *out_req, CvmError **error); +bool cvm_gateway_ch_send_response(CvmHandle handle, const char *event_id, const char *payload_json, CvmError **error); +bool cvm_gateway_ch_announce(CvmHandle handle, CvmError **error); +bool cvm_gateway_ch_stop(CvmHandle handle, CvmError **error); + +/* ─── Proxy (channel-based) ───────────────────────────────────────── */ + +CvmHandle cvm_proxy_ch_new(CvmHandle keys_handle, CvmClientConfig config, CvmError **error); +bool cvm_proxy_ch_send(CvmHandle handle, const char *payload_json, CvmError **error); +bool cvm_proxy_ch_recv(CvmHandle handle, CvmJsonRpcMessage *out_msg, CvmError **error); +bool cvm_proxy_ch_recv_timeout(CvmHandle handle, uint64_t timeout_secs, CvmJsonRpcMessage *out_msg, CvmError **error); +bool cvm_proxy_ch_stop(CvmHandle handle, CvmError **error); + +/* ─── Discovery ────────────────────────────────────────────────────── */ + +CvmServerAnnouncement *cvm_discover_servers( + CvmHandle pool_handle, + char **relay_urls, + size_t url_count, + size_t *out_count, + CvmError **error +); +CvmDiscoveredTool *cvm_discover_tools( + CvmHandle pool_handle, + const char *provider_pubkey_hex, + const char *provider_display_name, + char **relay_urls, + size_t url_count, + size_t *out_count, + CvmError **error +); +CvmDiscoveredTool *cvm_discover_all_tools( + CvmHandle pool_handle, + char **relay_urls, + size_t url_count, + size_t *out_count, + CvmError **error +); +CvmProviderProfile *cvm_fetch_provider_profiles( + CvmHandle pool_handle, + char **provider_pubkeys, + size_t provider_pubkey_count, + char **relay_urls, + size_t url_count, + size_t *out_count, + CvmError **error +); + +/* ─── Encryption ───────────────────────────────────────────────────── */ + +char *cvm_encrypt_nip44(CvmHandle keys_handle, const char *recipient_hex, const char *plaintext, CvmError **error); +char *cvm_decrypt_nip44(CvmHandle keys_handle, const char *sender_hex, const char *ciphertext, CvmError **error); +char *cvm_pubkey_hex_to_npub(const char *pubkey_hex, CvmError **error); + +#ifdef __cplusplus +} +#endif + +#endif /* CONTEXTVM_FFI_H */ diff --git a/contextvm-ffi/src/builders.rs b/contextvm-ffi/src/builders.rs new file mode 100644 index 0000000..e6c726d --- /dev/null +++ b/contextvm-ffi/src/builders.rs @@ -0,0 +1,208 @@ +//! Helper functions for building SDK types from FFI configs. +//! +//! The SDK's public types are `#[non_exhaustive]`, so we can't construct +//! them with struct literals from outside the crate. These helpers use +//! the builder pattern instead. + +use std::time::Duration; + +use crate::types::{c_str_array_to_vec, c_str_to_string, FfiClientConfig, FfiServerConfig}; + +pub struct ServerConfigParts { + pub relay_urls: Vec, + pub encryption_mode: contextvm_sdk::EncryptionMode, + pub gift_wrap_mode: contextvm_sdk::GiftWrapMode, + pub server_name: Option, + pub server_version: Option, + pub server_picture: Option, + pub server_about: Option, + pub server_website: Option, + pub is_announced_server: bool, + pub allowed_pubkeys: Vec, + pub session_timeout_secs: u64, + pub cleanup_interval_secs: u64, +} + +/// Build a `ServerInfo` from FFI C strings. +pub fn build_server_info( + name: Option, + version: Option, + picture: Option, + about: Option, + website: Option, +) -> Option { + if name.is_none() + && version.is_none() + && picture.is_none() + && about.is_none() + && website.is_none() + { + return None; + } + + let mut info = contextvm_sdk::ServerInfo::default(); + if let Some(n) = name { + info = info.with_name(n); + } + if let Some(v) = version { + info = info.with_version(v); + } + if let Some(p) = picture { + info = info.with_picture(p); + } + if let Some(a) = about { + info = info.with_about(a); + } + if let Some(w) = website { + info = info.with_website(w); + } + Some(info) +} + +/// Extract fields from an FfiServerConfig and build an SDK server config. +pub fn build_sdk_server_config( + config: &FfiServerConfig, +) -> contextvm_sdk::NostrServerTransportConfig { + let relay_urls = c_str_array_to_vec(config.relay_urls, config.relay_url_count); + let allowed = c_str_array_to_vec(config.allowed_pubkeys, config.allowed_pubkey_count); + + let server_info = build_server_info( + c_str_to_string(config.server_name), + c_str_to_string(config.server_version), + c_str_to_string(config.server_picture), + c_str_to_string(config.server_about), + c_str_to_string(config.server_website), + ); + + let mut sdk_config = contextvm_sdk::NostrServerTransportConfig::default() + .with_relay_urls(if relay_urls.is_empty() { + vec!["wss://relay.damus.io".to_string()] + } else { + relay_urls + }) + .with_encryption_mode(config.encryption_mode.into()) + .with_gift_wrap_mode(config.gift_wrap_mode.into()) + .with_announced_server(config.is_announced_server) + .with_allowed_public_keys(allowed) + .with_session_timeout(Duration::from_secs(config.session_timeout_secs.max(1))) + .with_cleanup_interval(Duration::from_secs(config.cleanup_interval_secs.max(1))); + + if let Some(server_info) = server_info { + sdk_config = sdk_config.with_server_info(server_info); + } + + sdk_config +} + +/// Extract fields from an FfiClientConfig and build an SDK client config. +pub fn build_sdk_client_config( + config: &FfiClientConfig, +) -> Option { + let server_pubkey = c_str_to_string(config.server_pubkey)?; + let relay_urls = c_str_array_to_vec(config.relay_urls, config.relay_url_count); + + Some( + contextvm_sdk::NostrClientTransportConfig::default() + .with_relay_urls(relay_urls) + .with_server_pubkey(server_pubkey) + .with_encryption_mode(config.encryption_mode.into()) + .with_gift_wrap_mode(config.gift_wrap_mode.into()) + .with_stateless(config.is_stateless) + .with_timeout(Duration::from_secs(config.timeout_secs.max(1))), + ) +} + +/// Build a server config from UniFFI record fields. +pub fn build_sdk_server_config_from_fields( + parts: ServerConfigParts, +) -> contextvm_sdk::NostrServerTransportConfig { + let server_info = build_server_info( + parts.server_name, + parts.server_version, + parts.server_picture, + parts.server_about, + parts.server_website, + ); + + let mut sdk_config = contextvm_sdk::NostrServerTransportConfig::default() + .with_relay_urls(if parts.relay_urls.is_empty() { + vec!["wss://relay.damus.io".to_string()] + } else { + parts.relay_urls + }) + .with_encryption_mode(parts.encryption_mode) + .with_gift_wrap_mode(parts.gift_wrap_mode) + .with_announced_server(parts.is_announced_server) + .with_allowed_public_keys(parts.allowed_pubkeys) + .with_session_timeout(Duration::from_secs(parts.session_timeout_secs.max(1))) + .with_cleanup_interval(Duration::from_secs(parts.cleanup_interval_secs.max(1))); + + if let Some(server_info) = server_info { + sdk_config = sdk_config.with_server_info(server_info); + } + + sdk_config +} + +/// Build a client config from UniFFI record fields. +pub fn build_sdk_client_config_from_fields( + relay_urls: Vec, + server_pubkey: String, + encryption_mode: contextvm_sdk::EncryptionMode, + gift_wrap_mode: contextvm_sdk::GiftWrapMode, + is_stateless: bool, + timeout_secs: u64, +) -> contextvm_sdk::NostrClientTransportConfig { + contextvm_sdk::NostrClientTransportConfig::default() + .with_relay_urls(relay_urls) + .with_server_pubkey(server_pubkey) + .with_encryption_mode(encryption_mode) + .with_gift_wrap_mode(gift_wrap_mode) + .with_stateless(is_stateless) + .with_timeout(Duration::from_secs(timeout_secs.max(1))) +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn omitted_server_info_matches_sdk_default() { + assert!(build_server_info(None, None, None, None, None).is_none()); + + let config = build_sdk_server_config_from_fields(ServerConfigParts { + relay_urls: vec!["wss://relay.example.com".to_string()], + encryption_mode: contextvm_sdk::EncryptionMode::Optional, + gift_wrap_mode: contextvm_sdk::GiftWrapMode::Optional, + server_name: None, + server_version: None, + server_picture: None, + server_about: None, + server_website: None, + is_announced_server: false, + allowed_pubkeys: vec![], + session_timeout_secs: 300, + cleanup_interval_secs: 60, + }); + + assert!(config.server_info.is_none()); + } + + #[test] + fn server_info_preserves_sdk_fields() { + let info = build_server_info( + Some("name".to_string()), + Some("1.2.3".to_string()), + Some("https://example.com/pic.png".to_string()), + Some("about".to_string()), + Some("https://example.com".to_string()), + ) + .expect("server info should be present when any field is supplied"); + + assert_eq!(info.name.as_deref(), Some("name")); + assert_eq!(info.version.as_deref(), Some("1.2.3")); + assert_eq!(info.picture.as_deref(), Some("https://example.com/pic.png")); + assert_eq!(info.about.as_deref(), Some("about")); + assert_eq!(info.website.as_deref(), Some("https://example.com")); + } +} diff --git a/contextvm-ffi/src/channel.rs b/contextvm-ffi/src/channel.rs new file mode 100644 index 0000000..e05638b --- /dev/null +++ b/contextvm-ffi/src/channel.rs @@ -0,0 +1,883 @@ +//! Channel-based wrapper types that allow FFI consumers to receive messages. + +use crate::builders::{build_sdk_client_config, build_sdk_server_config}; +use crate::error::{set_error, FfiError}; +use crate::handle::FfiHandle; +use crate::kv; +use crate::runtime::global_runtime; +use crate::types::*; + +use std::os::raw::c_char; +use std::time::Duration; +use tokio::sync::Mutex; + +// ─── Wrappers that combine transport + receiver ──────────────────────── + +/// Server wrapper holding transport + message receiver. +pub struct ServerChannel { + transport: Mutex, + receiver: Mutex>, +} + +/// Client wrapper holding transport + message receiver. +pub struct ClientChannel { + transport: Mutex, + receiver: Mutex>, +} + +/// Gateway wrapper holding gateway + message receiver. +pub struct GatewayChannel { + gateway: Mutex, + receiver: Mutex>, +} + +/// Proxy wrapper holding proxy + message receiver. +pub struct ProxyChannel { + proxy: Mutex, + receiver: Mutex>, +} + +// ─── Server Channel API ──────────────────────────────────────────────── + +/// Create and start a server transport with a channel receiver. +#[no_mangle] +pub extern "C" fn cvm_server_ch_new( + keys_handle: FfiHandle, + config: FfiServerConfig, + error: *mut *mut FfiError, +) -> FfiHandle { + let keys = match get_keys(keys_handle, error) { + Some(k) => k, + None => return FfiHandle { id: 0 }, + }; + + let sdk_config = build_sdk_server_config(&config); + + let result = global_runtime().block_on(async { + let mut transport = contextvm_sdk::NostrServerTransport::new(keys, sdk_config).await?; + transport.start().await?; + let receiver = transport + .take_message_receiver() + .ok_or_else(|| contextvm_sdk::Error::Other("receiver already taken".into()))?; + Ok::<_, contextvm_sdk::Error>(ServerChannel { + transport: Mutex::new(transport), + receiver: Mutex::new(receiver), + }) + }); + + match result { + Ok(ch) => kv::insert(ch), + Err(e) => { + set_error(error, e.into()); + FfiHandle { id: 0 } + } + } +} + +/// Receive the next incoming request. Blocks until available. +#[no_mangle] +pub extern "C" fn cvm_server_ch_recv( + handle: FfiHandle, + out_req: *mut FfiIncomingRequest, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid server channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + receiver.recv().await + }) { + Some(incoming) => { + if !out_req.is_null() { + unsafe { + *out_req = FfiIncomingRequest { + message: message_to_ffi(&incoming.message), + client_pubkey: string_to_c(incoming.client_pubkey), + event_id: string_to_c(incoming.event_id), + is_encrypted: incoming.is_encrypted, + }; + } + } + true + } + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + } +} + +/// Send a response through a server channel. +#[no_mangle] +pub extern "C" fn cvm_server_ch_send_response( + handle: FfiHandle, + event_id: *const c_char, + payload_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let guard = kv::get::(handle); + let channel = match guard { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid server channel handle".into(), + }, + ); + return false; + } + }; + + let eid = match c_str_to_string(event_id) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Validation, + message: "null event_id".into(), + }, + ); + return false; + } + }; + + let msg = match parse_json_rpc_message(payload_json, error) { + Some(m) => m, + None => return false, + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.send_response(&eid, msg).await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Publish server announcement. +#[no_mangle] +pub extern "C" fn cvm_server_ch_announce(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let guard = kv::get::(handle); + let channel = match guard { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid server channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.announce().await + }) { + Ok(_) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Close a server channel. +#[no_mangle] +pub extern "C" fn cvm_server_ch_close(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid server channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut transport = channel.transport.lock().await; + transport.close().await + }) { + Ok(()) => { + kv::remove(handle); + true + } + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +// ─── Client Channel API ──────────────────────────────────────────────── + +/// Create and start a client transport with a channel receiver. +#[no_mangle] +pub extern "C" fn cvm_client_ch_new( + keys_handle: FfiHandle, + config: FfiClientConfig, + error: *mut *mut FfiError, +) -> FfiHandle { + let keys = match get_keys(keys_handle, error) { + Some(k) => k, + None => return FfiHandle { id: 0 }, + }; + + let sdk_config = match build_sdk_client_config(&config) { + Some(c) => c, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Validation, + message: "server_pubkey is required".into(), + }, + ); + return FfiHandle { id: 0 }; + } + }; + + let result = global_runtime().block_on(async { + let mut transport = contextvm_sdk::NostrClientTransport::new(keys, sdk_config).await?; + transport.start().await?; + let receiver = transport + .take_message_receiver() + .ok_or_else(|| contextvm_sdk::Error::Other("receiver already taken".into()))?; + Ok::<_, contextvm_sdk::Error>(ClientChannel { + transport: Mutex::new(transport), + receiver: Mutex::new(receiver), + }) + }); + + match result { + Ok(ch) => kv::insert(ch), + Err(e) => { + set_error(error, e.into()); + FfiHandle { id: 0 } + } + } +} + +/// Send a message through a client channel. +#[no_mangle] +pub extern "C" fn cvm_client_ch_send( + handle: FfiHandle, + payload_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let guard = kv::get::(handle); + let channel = match guard { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid client channel handle".into(), + }, + ); + return false; + } + }; + + let msg = match parse_json_rpc_message(payload_json, error) { + Some(m) => m, + None => return false, + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.send(&msg).await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Receive the next message. Blocks until available. +#[no_mangle] +pub extern "C" fn cvm_client_ch_recv( + handle: FfiHandle, + out_msg: *mut FfiJsonRpcMessage, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid client channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + receiver.recv().await + }) { + Some(message) => { + if !out_msg.is_null() { + unsafe { + *out_msg = message_to_ffi(&message); + } + } + true + } + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + } +} + +/// Close a client channel. +#[no_mangle] +pub extern "C" fn cvm_client_ch_close(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid client channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut transport = channel.transport.lock().await; + transport.close().await + }) { + Ok(()) => { + kv::remove(handle); + true + } + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +// ─── Gateway Channel API ─────────────────────────────────────────────── + +/// Create and start a gateway with a channel receiver. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_new( + keys_handle: FfiHandle, + config: FfiServerConfig, + error: *mut *mut FfiError, +) -> FfiHandle { + let keys = match get_keys(keys_handle, error) { + Some(k) => k, + None => return FfiHandle { id: 0 }, + }; + + let sdk_config = build_sdk_server_config(&config); + let gw_config = contextvm_sdk::gateway::GatewayConfig::new(sdk_config); + + let result = global_runtime().block_on(async { + let mut gw = contextvm_sdk::gateway::NostrMCPGateway::new(keys, gw_config).await?; + let receiver = gw.start().await?; + Ok::<_, contextvm_sdk::Error>(GatewayChannel { + gateway: Mutex::new(gw), + receiver: Mutex::new(receiver), + }) + }); + + match result { + Ok(ch) => kv::insert(ch), + Err(e) => { + set_error(error, e.into()); + FfiHandle { id: 0 } + } + } +} + +/// Receive the next request from a gateway channel. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_recv( + handle: FfiHandle, + out_req: *mut FfiIncomingRequest, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid gateway channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + receiver.recv().await + }) { + Some(incoming) => { + if !out_req.is_null() { + unsafe { + *out_req = FfiIncomingRequest { + message: message_to_ffi(&incoming.message), + client_pubkey: string_to_c(incoming.client_pubkey), + event_id: string_to_c(incoming.event_id), + is_encrypted: incoming.is_encrypted, + }; + } + } + true + } + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + } +} + +/// Send a response through a gateway channel. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_send_response( + handle: FfiHandle, + event_id: *const c_char, + payload_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let guard = kv::get::(handle); + let channel = match guard { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid gateway channel handle".into(), + }, + ); + return false; + } + }; + + let eid = match c_str_to_string(event_id) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Validation, + message: "null event_id".into(), + }, + ); + return false; + } + }; + + let msg = match parse_json_rpc_message(payload_json, error) { + Some(m) => m, + None => return false, + }; + + match global_runtime().block_on(async { + let gateway = channel.gateway.lock().await; + gateway.send_response(&eid, msg).await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Publish announcement through a gateway channel. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_announce(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let guard = kv::get::(handle); + let channel = match guard { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid gateway channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let gateway = channel.gateway.lock().await; + gateway.announce().await + }) { + Ok(_) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Stop a gateway channel. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_stop(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid gateway channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut gateway = channel.gateway.lock().await; + gateway.stop().await + }) { + Ok(()) => { + kv::remove(handle); + true + } + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +// ─── Proxy Channel API ───────────────────────────────────────────────── + +/// Create and start a proxy with a channel receiver. +#[no_mangle] +pub extern "C" fn cvm_proxy_ch_new( + keys_handle: FfiHandle, + config: FfiClientConfig, + error: *mut *mut FfiError, +) -> FfiHandle { + let keys = match get_keys(keys_handle, error) { + Some(k) => k, + None => return FfiHandle { id: 0 }, + }; + + let sdk_config = match build_sdk_client_config(&config) { + Some(c) => c, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Validation, + message: "server_pubkey is required".into(), + }, + ); + return FfiHandle { id: 0 }; + } + }; + + let proxy_config = contextvm_sdk::proxy::ProxyConfig::new(sdk_config); + + let result = global_runtime().block_on(async { + let mut proxy = contextvm_sdk::proxy::NostrMCPProxy::new(keys, proxy_config).await?; + let receiver = proxy.start().await?; + Ok::<_, contextvm_sdk::Error>(ProxyChannel { + proxy: Mutex::new(proxy), + receiver: Mutex::new(receiver), + }) + }); + + match result { + Ok(ch) => kv::insert(ch), + Err(e) => { + set_error(error, e.into()); + FfiHandle { id: 0 } + } + } +} + +/// Send a message through a proxy channel. +#[no_mangle] +pub extern "C" fn cvm_proxy_ch_send( + handle: FfiHandle, + payload_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let guard = kv::get::(handle); + let channel = match guard { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid proxy channel handle".into(), + }, + ); + return false; + } + }; + + let msg = match parse_json_rpc_message(payload_json, error) { + Some(m) => m, + None => return false, + }; + + match global_runtime().block_on(async { + let proxy = channel.proxy.lock().await; + proxy.send(&msg).await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Receive the next message from a proxy channel. +#[no_mangle] +pub extern "C" fn cvm_proxy_ch_recv( + handle: FfiHandle, + out_msg: *mut FfiJsonRpcMessage, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid proxy channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + receiver.recv().await + }) { + Some(message) => { + if !out_msg.is_null() { + unsafe { + *out_msg = message_to_ffi(&message); + } + } + true + } + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + } +} + +/// Receive the next message from a proxy channel, timing out after `timeout_secs`. +#[no_mangle] +pub extern "C" fn cvm_proxy_ch_recv_timeout( + handle: FfiHandle, + timeout_secs: u64, + out_msg: *mut FfiJsonRpcMessage, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid proxy channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + tokio::time::timeout(Duration::from_secs(timeout_secs), receiver.recv()).await + }) { + Ok(Some(message)) => { + if !out_msg.is_null() { + unsafe { + *out_msg = message_to_ffi(&message); + } + } + true + } + Ok(None) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + Err(_) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Timeout, + message: "receive timed out".into(), + }, + ); + false + } + } +} + +/// Stop a proxy channel. +#[no_mangle] +pub extern "C" fn cvm_proxy_ch_stop(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid proxy channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut proxy = channel.proxy.lock().await; + proxy.stop().await + }) { + Ok(()) => { + kv::remove(handle); + true + } + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +// ─── Helpers ─────────────────────────────────────────────────────────── + +fn get_keys(handle: FfiHandle, error: *mut *mut FfiError) -> Option { + match kv::get::(handle) { + Some(k) => Some(k.as_ref().clone()), + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid key handle".into(), + }, + ); + None + } + } +} + +fn parse_json_rpc_message( + payload_json: *const c_char, + error: *mut *mut FfiError, +) -> Option { + let json_str = match c_str_to_string(payload_json) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Validation, + message: "null payload json".into(), + }, + ); + return None; + } + }; + + match serde_json::from_str(&json_str) { + Ok(m) => Some(m), + Err(e) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Serialization, + message: e.to_string(), + }, + ); + None + } + } +} diff --git a/contextvm-ffi/src/discovery.rs b/contextvm-ffi/src/discovery.rs new file mode 100644 index 0000000..d243e4f --- /dev/null +++ b/contextvm-ffi/src/discovery.rs @@ -0,0 +1,241 @@ +//! Shared discovery helpers for C and UniFFI bindings. + +use contextvm_sdk::signer::PublicKey; +use nostr_sdk::prelude::*; +use std::collections::{HashMap, HashSet}; +use std::sync::Arc; +use std::time::Duration; + +#[derive(Debug, Clone)] +pub(crate) struct DiscoveredToolRecord { + pub provider_pubkey: String, + pub provider_display_name: Option, + pub provider_name: Option, + pub provider_about: Option, + pub provider_picture: Option, + pub provider_nip05: Option, + pub tool_name: String, + pub description: String, + pub schema_json: String, +} + +#[derive(Debug, Clone)] +pub(crate) struct ProviderProfileRecord { + pub pubkey: String, + pub name: Option, + pub about: Option, + pub picture: Option, + pub nip05: Option, +} + +pub(crate) async fn discover_tools( + client: &Arc, + provider_pubkey: &str, + provider_display_name: Option, + relay_urls: &[String], +) -> contextvm_sdk::Result> { + let parsed_pubkey = PublicKey::from_hex(provider_pubkey) + .map_err(|e| contextvm_sdk::Error::Validation(format!("bad pubkey: {e}")))?; + let raw_tools = + contextvm_sdk::discovery::discover_tools(client, &parsed_pubkey, relay_urls).await?; + + raw_tools + .into_iter() + .map(|tool| tool_record_from_value(provider_pubkey, provider_display_name.clone(), tool)) + .collect() +} + +pub(crate) async fn discover_all_tools( + client: &Arc, + relay_urls: &[String], +) -> contextvm_sdk::Result> { + let servers = contextvm_sdk::discovery::discover_servers(client, relay_urls).await?; + let mut tools = Vec::new(); + + for server in servers { + match discover_tools( + client, + &server.pubkey, + server.server_info.name.clone(), + relay_urls, + ) + .await + { + Ok(mut server_tools) => tools.append(&mut server_tools), + Err(_) => continue, + } + } + + let provider_pubkeys: Vec = tools + .iter() + .map(|tool| tool.provider_pubkey.clone()) + .collect::>() + .into_iter() + .collect(); + if let Ok(profiles) = fetch_provider_profiles(client, &provider_pubkeys, relay_urls).await { + for tool in &mut tools { + if let Some(profile) = profiles.get(&tool.provider_pubkey) { + tool.provider_name = profile.name.clone(); + tool.provider_about = profile.about.clone(); + tool.provider_picture = profile.picture.clone(); + tool.provider_nip05 = profile.nip05.clone(); + } + } + } + + Ok(tools) +} + +pub(crate) async fn fetch_provider_profiles( + client: &Arc, + provider_pubkeys: &[String], + relay_urls: &[String], +) -> contextvm_sdk::Result> { + let parsed_pubkeys: Vec = provider_pubkeys + .iter() + .filter_map(|pubkey| PublicKey::from_hex(pubkey).ok()) + .collect(); + + if parsed_pubkeys.is_empty() { + return Ok(HashMap::new()); + } + + let filter = Filter::new().authors(parsed_pubkeys).kind(Kind::Metadata); + let timeout = Duration::from_secs(10); + let events = if relay_urls.is_empty() { + client.fetch_events(filter, timeout).await + } else { + client.fetch_events_from(relay_urls, filter, timeout).await + } + .map_err(|e| contextvm_sdk::Error::Transport(e.to_string()))?; + + let mut profiles = HashMap::new(); + for event in events { + if let Some(profile) = profile_from_metadata(event.pubkey.to_hex(), &event.content) { + profiles.insert(profile.pubkey.clone(), profile); + } + } + + Ok(profiles) +} + +pub(crate) fn pubkey_hex_to_npub(pubkey_hex: &str) -> contextvm_sdk::Result { + use nostr_sdk::ToBech32; + + let pubkey = PublicKey::from_hex(pubkey_hex) + .map_err(|e| contextvm_sdk::Error::Validation(format!("bad pubkey: {e}")))?; + pubkey + .to_bech32() + .map_err(|e| contextvm_sdk::Error::Other(e.to_string())) +} + +fn tool_record_from_value( + provider_pubkey: &str, + provider_display_name: Option, + value: serde_json::Value, +) -> contextvm_sdk::Result { + let tool_name = value + .get("name") + .and_then(|v| v.as_str()) + .ok_or_else(|| contextvm_sdk::Error::Other("tool announcement missing name".into()))? + .to_string(); + let description = value + .get("description") + .and_then(|v| v.as_str()) + .unwrap_or_default() + .to_string(); + let schema = value + .get("inputSchema") + .or_else(|| value.get("input_schema")) + .ok_or_else(|| { + contextvm_sdk::Error::Other(format!( + "tool announcement {tool_name} missing inputSchema" + )) + })?; + let schema_json = serde_json::to_string(schema).map_err(contextvm_sdk::Error::Serialization)?; + + Ok(DiscoveredToolRecord { + provider_pubkey: provider_pubkey.to_string(), + provider_display_name, + provider_name: None, + provider_about: None, + provider_picture: None, + provider_nip05: None, + tool_name, + description, + schema_json, + }) +} + +fn profile_from_metadata(pubkey: String, content: &str) -> Option { + let metadata: serde_json::Value = serde_json::from_str(content).ok()?; + Some(ProviderProfileRecord { + pubkey, + name: metadata + .get("name") + .and_then(|v| v.as_str()) + .map(String::from), + about: metadata + .get("about") + .and_then(|v| v.as_str()) + .map(String::from), + picture: metadata + .get("picture") + .and_then(|v| v.as_str()) + .map(String::from), + nip05: metadata + .get("nip05") + .and_then(|v| v.as_str()) + .map(String::from), + }) +} + +#[cfg(test)] +mod tests { + use super::*; + use serde_json::json; + + #[test] + fn tool_record_preserves_confidential_app_fields() { + let tool = tool_record_from_value( + "abc", + Some("provider".to_string()), + json!({ + "name": "echo", + "description": "Echo a message", + "inputSchema": { + "type": "object", + "properties": { + "message": { "type": "string" } + } + } + }), + ) + .unwrap(); + + assert_eq!(tool.provider_pubkey, "abc"); + assert_eq!(tool.provider_display_name.as_deref(), Some("provider")); + assert_eq!(tool.tool_name, "echo"); + assert_eq!(tool.description, "Echo a message"); + assert!(tool.schema_json.contains("message")); + } + + #[test] + fn profile_metadata_maps_provider_fields() { + let profile = profile_from_metadata( + "abc".to_string(), + r#"{"name":"Provider","about":"About","picture":"https://pic","nip05":"p@example.com"}"#, + ) + .unwrap(); + + assert_eq!(profile.name.as_deref(), Some("Provider")); + assert_eq!(profile.about.as_deref(), Some("About")); + assert_eq!(profile.picture.as_deref(), Some("https://pic")); + assert_eq!(profile.nip05.as_deref(), Some("p@example.com")); + } + + #[test] + fn pubkey_hex_to_npub_rejects_invalid_hex() { + assert!(pubkey_hex_to_npub("not-hex").is_err()); + } +} diff --git a/contextvm-ffi/src/error.rs b/contextvm-ffi/src/error.rs new file mode 100644 index 0000000..413b331 --- /dev/null +++ b/contextvm-ffi/src/error.rs @@ -0,0 +1,87 @@ +//! FFI-safe error type. + +use std::fmt; + +/// Error codes returned by the FFI layer. +#[repr(C)] +#[derive(Debug, Clone, Copy, PartialEq, Eq, uniffi::Enum)] +pub enum ErrorCode { + /// Success (no error). + Ok = 0, + /// Transport / relay error. + Transport = 1, + /// Encryption (NIP-44) error. + Encryption = 2, + /// Decryption error. + Decryption = 3, + /// Request timed out. + Timeout = 4, + /// Validation error (size/schema). + Validation = 5, + /// Unauthorized (pubkey not in allowlist). + Unauthorized = 6, + /// Serialization/deserialization error. + Serialization = 7, + /// Generic / unknown error. + Other = 99, +} + +impl From<&contextvm_sdk::Error> for ErrorCode { + fn from(e: &contextvm_sdk::Error) -> Self { + match e { + contextvm_sdk::Error::Transport(_) => ErrorCode::Transport, + contextvm_sdk::Error::Encryption(_) => ErrorCode::Encryption, + contextvm_sdk::Error::Decryption(_) => ErrorCode::Decryption, + contextvm_sdk::Error::Timeout => ErrorCode::Timeout, + contextvm_sdk::Error::Validation(_) => ErrorCode::Validation, + contextvm_sdk::Error::Unauthorized(_) => ErrorCode::Unauthorized, + contextvm_sdk::Error::Serialization(_) => ErrorCode::Serialization, + contextvm_sdk::Error::Other(_) => ErrorCode::Other, + } + } +} + +/// An FFI-safe error with a code and human-readable message. +#[derive(Debug, Clone, uniffi::Object)] +pub struct FfiError { + pub code: ErrorCode, + pub message: String, +} + +#[uniffi::export] +impl FfiError { + /// Get the error code. + pub fn code(&self) -> ErrorCode { + self.code + } + + /// Get the error message. + pub fn message(&self) -> String { + self.message.clone() + } +} + +impl std::fmt::Display for FfiError { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + write!(f, "{:?}: {}", self.code, self.message) + } +} + +impl std::error::Error for FfiError {} + +impl From for FfiError { + fn from(e: contextvm_sdk::Error) -> Self { + FfiError { + code: ErrorCode::from(&e), + message: e.to_string(), + } + } +} + +pub(crate) fn set_error(out: *mut *mut FfiError, err: FfiError) { + if !out.is_null() { + unsafe { + *out = Box::into_raw(Box::new(err)); + } + } +} diff --git a/contextvm-ffi/src/handle.rs b/contextvm-ffi/src/handle.rs new file mode 100644 index 0000000..000a612 --- /dev/null +++ b/contextvm-ffi/src/handle.rs @@ -0,0 +1,21 @@ +//! Opaque handle type for FFI consumers. + +use std::sync::atomic::{AtomicU64, Ordering}; + +static NEXT_HANDLE: AtomicU64 = AtomicU64::new(1); + +/// An opaque handle returned by the FFI layer. +#[repr(C)] +#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)] +pub struct FfiHandle { + pub id: u64, +} + +impl FfiHandle { + /// Allocate a fresh, unique handle. + pub fn next() -> Self { + Self { + id: NEXT_HANDLE.fetch_add(1, Ordering::Relaxed), + } + } +} diff --git a/contextvm-ffi/src/kv.rs b/contextvm-ffi/src/kv.rs new file mode 100644 index 0000000..ee52a5c --- /dev/null +++ b/contextvm-ffi/src/kv.rs @@ -0,0 +1,30 @@ +//! Global key-value store that maps FFI handles to their underlying Rust objects. + +use std::any::Any; +use std::collections::HashMap; +use std::sync::{Arc, LazyLock, Mutex}; + +use crate::handle::FfiHandle; + +static STORE: LazyLock>>> = + LazyLock::new(|| Mutex::new(HashMap::new())); + +/// Insert a value and return its handle. +pub fn insert(value: T) -> FfiHandle { + let handle = FfiHandle::next(); + let mut store = STORE.lock().unwrap(); + store.insert(handle.id, Arc::new(value)); + handle +} + +/// Retrieve a typed handle. +pub fn get(handle: FfiHandle) -> Option> { + let store = STORE.lock().unwrap(); + let value = Arc::clone(store.get(&handle.id)?); + value.downcast::().ok() +} + +/// Remove a handle from the store, dropping the object. +pub fn remove(handle: FfiHandle) -> bool { + STORE.lock().unwrap().remove(&handle.id).is_some() +} diff --git a/contextvm-ffi/src/lib.rs b/contextvm-ffi/src/lib.rs new file mode 100644 index 0000000..d4474e9 --- /dev/null +++ b/contextvm-ffi/src/lib.rs @@ -0,0 +1,23 @@ +// ─── ContextVM FFI — Flat C API + UniFFI for Python/Swift/Kotlin ─── +// +// This crate exposes: +// 1. A flat `#[no_mangle] extern "C"` surface for direct C interop +// (Swift via C headers, Kotlin via JNI/JNA, C/C++ directly) +// 2. UniFFI proc-macro definitions for Python and as an alternative +// to hand-written Swift/Kotlin bindings +// +// All async work is driven on an internal global tokio runtime so +// callers never need to manage an async runtime. + +mod builders; +mod channel; +mod discovery; +mod error; +mod handle; +mod kv; +mod runtime; +mod types; +mod uniffi_types; + +// UniFFI scaffolding — must be at crate root, after all types it references. +uniffi::setup_scaffolding!(); diff --git a/contextvm-ffi/src/runtime.rs b/contextvm-ffi/src/runtime.rs new file mode 100644 index 0000000..3355c0b --- /dev/null +++ b/contextvm-ffi/src/runtime.rs @@ -0,0 +1,14 @@ +//! Global tokio runtime shared across all FFI calls. +//! +// The runtime is lazily initialized on first use and never shut down. +//! This avoids needing the caller to manage a runtime lifecycle. + +use std::sync::OnceLock; +use tokio::runtime::Runtime; + +static RUNTIME: OnceLock = OnceLock::new(); + +/// Return a reference to the global tokio runtime. +pub fn global_runtime() -> &'static Runtime { + RUNTIME.get_or_init(|| Runtime::new().expect("failed to create global tokio runtime for FFI")) +} diff --git a/contextvm-ffi/src/types.rs b/contextvm-ffi/src/types.rs new file mode 100644 index 0000000..a7b4209 --- /dev/null +++ b/contextvm-ffi/src/types.rs @@ -0,0 +1,918 @@ +//! FFI-exposed types and flat C API functions. +//! +//! This module defines the FFI-safe struct mirrors, `#[no_mangle] extern "C"` +//! functions for key management, relay pool, discovery, encryption, and utility +//! operations. The channel-based transport APIs live in `channel.rs`. + +use crate::error::{set_error, ErrorCode, FfiError}; +use crate::handle::FfiHandle; +use crate::kv; +use crate::runtime::global_runtime; + +use std::ffi::{CStr, CString}; +use std::os::raw::c_char; +use std::ptr; + +// ─── FFI-safe struct mirrors ─────────────────────────────────────────── + +/// Encryption mode. +#[repr(C)] +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum EncryptionMode { + Optional = 0, + Required = 1, + Disabled = 2, +} + +impl From for contextvm_sdk::EncryptionMode { + fn from(m: EncryptionMode) -> Self { + match m { + EncryptionMode::Optional => contextvm_sdk::EncryptionMode::Optional, + EncryptionMode::Required => contextvm_sdk::EncryptionMode::Required, + EncryptionMode::Disabled => contextvm_sdk::EncryptionMode::Disabled, + } + } +} + +/// Gift-wrap mode (CEP-19). +#[repr(C)] +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum GiftWrapMode { + Optional = 0, + Ephemeral = 1, + Persistent = 2, +} + +impl From for contextvm_sdk::GiftWrapMode { + fn from(m: GiftWrapMode) -> Self { + match m { + GiftWrapMode::Optional => contextvm_sdk::GiftWrapMode::Optional, + GiftWrapMode::Ephemeral => contextvm_sdk::GiftWrapMode::Ephemeral, + GiftWrapMode::Persistent => contextvm_sdk::GiftWrapMode::Persistent, + } + } +} + +/// JSON-RPC message type discriminator. +#[repr(C)] +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum JsonRpcType { + Request = 0, + Response = 1, + ErrorResponse = 2, + Notification = 3, +} + +/// An FFI-safe JSON-RPC message. +#[repr(C)] +#[derive(Debug)] +pub struct FfiJsonRpcMessage { + pub msg_type: JsonRpcType, + pub payload_json: *mut c_char, + pub method: *mut c_char, + pub id: *mut c_char, +} + +/// An FFI-safe incoming request (server-side). +#[repr(C)] +#[derive(Debug)] +pub struct FfiIncomingRequest { + pub message: FfiJsonRpcMessage, + pub client_pubkey: *mut c_char, + pub event_id: *mut c_char, + pub is_encrypted: bool, +} + +/// A discovered server announcement. +#[repr(C)] +#[derive(Debug)] +pub struct FfiServerAnnouncement { + pub pubkey: *mut c_char, + pub name: *mut c_char, + pub version: *mut c_char, + pub picture: *mut c_char, + pub about: *mut c_char, + pub website: *mut c_char, + pub event_id: *mut c_char, +} + +/// A discovered MCP tool and provider metadata. +#[repr(C)] +#[derive(Debug)] +pub struct FfiDiscoveredTool { + pub provider_pubkey: *mut c_char, + pub provider_display_name: *mut c_char, + pub provider_name: *mut c_char, + pub provider_about: *mut c_char, + pub provider_picture: *mut c_char, + pub provider_nip05: *mut c_char, + pub tool_name: *mut c_char, + pub description: *mut c_char, + pub schema_json: *mut c_char, +} + +/// Nostr profile metadata for a provider. +#[repr(C)] +#[derive(Debug)] +pub struct FfiProviderProfile { + pub pubkey: *mut c_char, + pub name: *mut c_char, + pub about: *mut c_char, + pub picture: *mut c_char, + pub nip05: *mut c_char, +} + +/// Server transport config for FFI. +#[repr(C)] +#[derive(Debug)] +pub struct FfiServerConfig { + pub relay_urls: *mut *mut c_char, + pub relay_url_count: usize, + pub encryption_mode: EncryptionMode, + pub gift_wrap_mode: GiftWrapMode, + pub is_announced_server: bool, + pub server_name: *mut c_char, + pub server_version: *mut c_char, + pub server_picture: *mut c_char, + pub server_about: *mut c_char, + pub server_website: *mut c_char, + pub allowed_pubkeys: *mut *mut c_char, + pub allowed_pubkey_count: usize, + pub session_timeout_secs: u64, + pub cleanup_interval_secs: u64, +} + +/// Client transport config for FFI. +#[repr(C)] +#[derive(Debug)] +pub struct FfiClientConfig { + pub relay_urls: *mut *mut c_char, + pub relay_url_count: usize, + pub server_pubkey: *mut c_char, + pub encryption_mode: EncryptionMode, + pub gift_wrap_mode: GiftWrapMode, + pub is_stateless: bool, + pub timeout_secs: u64, +} + +// ─── Internal conversion helpers ─────────────────────────────────────── + +pub fn c_str_to_string(ptr: *const c_char) -> Option { + if ptr.is_null() { + return None; + } + unsafe { CStr::from_ptr(ptr).to_str().ok().map(String::from) } +} + +pub fn string_to_c(s: String) -> *mut c_char { + CString::new(s).unwrap_or_default().into_raw() +} + +pub fn opt_string_to_c(s: Option) -> *mut c_char { + s.map(string_to_c).unwrap_or(ptr::null_mut()) +} + +pub fn c_str_array_to_vec(ptr: *mut *mut c_char, count: usize) -> Vec { + if ptr.is_null() || count == 0 { + return Vec::new(); + } + unsafe { + let slice = std::slice::from_raw_parts(ptr, count); + slice.iter().filter_map(|&p| c_str_to_string(p)).collect() + } +} + +/// Convert an SDK `JsonRpcMessage` to the FFI representation. +pub fn message_to_ffi(msg: &contextvm_sdk::JsonRpcMessage) -> FfiJsonRpcMessage { + let json_str = serde_json::to_string(msg).unwrap_or_default(); + let msg_type = match msg { + contextvm_sdk::JsonRpcMessage::Request(_) => JsonRpcType::Request, + contextvm_sdk::JsonRpcMessage::Response(_) => JsonRpcType::Response, + contextvm_sdk::JsonRpcMessage::ErrorResponse(_) => JsonRpcType::ErrorResponse, + contextvm_sdk::JsonRpcMessage::Notification(_) => JsonRpcType::Notification, + }; + FfiJsonRpcMessage { + msg_type, + payload_json: string_to_c(json_str), + method: opt_string_to_c(msg.method().map(String::from)), + id: opt_string_to_c(msg.id().map(|v| v.to_string())), + } +} + +// ─── Free functions ──────────────────────────────────────────────────── + +#[no_mangle] +pub extern "C" fn cvm_string_free(s: *mut c_char) { + if !s.is_null() { + unsafe { + let _ = CString::from_raw(s); + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_message_free(msg: FfiJsonRpcMessage) { + cvm_string_free(msg.payload_json); + cvm_string_free(msg.method); + cvm_string_free(msg.id); +} + +#[no_mangle] +pub extern "C" fn cvm_incoming_request_free(req: FfiIncomingRequest) { + cvm_message_free(req.message); + cvm_string_free(req.client_pubkey); + cvm_string_free(req.event_id); +} + +#[no_mangle] +pub extern "C" fn cvm_announcements_free(announcements: *mut FfiServerAnnouncement, count: usize) { + if announcements.is_null() { + return; + } + unsafe { + let slice = std::slice::from_raw_parts_mut(announcements, count); + for ann in slice.iter_mut() { + cvm_string_free(ann.pubkey); + cvm_string_free(ann.name); + cvm_string_free(ann.version); + cvm_string_free(ann.picture); + cvm_string_free(ann.about); + cvm_string_free(ann.website); + cvm_string_free(ann.event_id); + } + let _ = Vec::from_raw_parts(announcements, count, count); + } +} + +#[no_mangle] +pub extern "C" fn cvm_discovered_tools_free(tools: *mut FfiDiscoveredTool, count: usize) { + if tools.is_null() { + return; + } + unsafe { + let slice = std::slice::from_raw_parts_mut(tools, count); + for tool in slice.iter_mut() { + cvm_string_free(tool.provider_pubkey); + cvm_string_free(tool.provider_display_name); + cvm_string_free(tool.provider_name); + cvm_string_free(tool.provider_about); + cvm_string_free(tool.provider_picture); + cvm_string_free(tool.provider_nip05); + cvm_string_free(tool.tool_name); + cvm_string_free(tool.description); + cvm_string_free(tool.schema_json); + } + let _ = Vec::from_raw_parts(tools, count, count); + } +} + +#[no_mangle] +pub extern "C" fn cvm_provider_profiles_free(profiles: *mut FfiProviderProfile, count: usize) { + if profiles.is_null() { + return; + } + unsafe { + let slice = std::slice::from_raw_parts_mut(profiles, count); + for profile in slice.iter_mut() { + cvm_string_free(profile.pubkey); + cvm_string_free(profile.name); + cvm_string_free(profile.about); + cvm_string_free(profile.picture); + cvm_string_free(profile.nip05); + } + let _ = Vec::from_raw_parts(profiles, count, count); + } +} + +// ─── Signer / Key management ─────────────────────────────────────────── + +#[no_mangle] +pub extern "C" fn cvm_keys_generate(_error: *mut *mut FfiError) -> FfiHandle { + kv::insert(contextvm_sdk::signer::generate()) +} + +#[no_mangle] +pub extern "C" fn cvm_keys_from_secret_key( + sk: *const c_char, + error: *mut *mut FfiError, +) -> FfiHandle { + let sk_str = match c_str_to_string(sk) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null secret key string".into(), + }, + ); + return FfiHandle { id: 0 }; + } + }; + match contextvm_sdk::signer::from_sk(&sk_str) { + Ok(keys) => kv::insert(keys), + Err(e) => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: e.to_string(), + }, + ); + FfiHandle { id: 0 } + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_keys_public_key(handle: FfiHandle, error: *mut *mut FfiError) -> *mut c_char { + let guard = kv::get::(handle); + match guard { + Some(keys) => string_to_c(keys.public_key().to_hex()), + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid key handle".into(), + }, + ); + ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_keys_secret_key(handle: FfiHandle, error: *mut *mut FfiError) -> *mut c_char { + let guard = kv::get::(handle); + match guard { + Some(keys) => string_to_c(keys.secret_key().to_secret_hex()), + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid key handle".into(), + }, + ); + ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_keys_free(handle: FfiHandle) { + kv::remove(handle); +} + +// ─── Relay Pool ──────────────────────────────────────────────────────── + +#[no_mangle] +pub extern "C" fn cvm_relay_pool_new( + keys_handle: FfiHandle, + error: *mut *mut FfiError, +) -> FfiHandle { + let keys = match kv::get::(keys_handle) { + Some(k) => k.as_ref().clone(), + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid key handle".into(), + }, + ); + return FfiHandle { id: 0 }; + } + }; + match global_runtime().block_on(contextvm_sdk::RelayPool::new(keys)) { + Ok(p) => kv::insert(p), + Err(e) => { + set_error(error, e.into()); + FfiHandle { id: 0 } + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_relay_pool_connect( + pool_handle: FfiHandle, + urls: *mut *mut c_char, + url_count: usize, + error: *mut *mut FfiError, +) -> bool { + let guard = kv::get::(pool_handle); + let pool = match guard { + Some(p) => p, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid pool handle".into(), + }, + ); + return false; + } + }; + let url_vec = c_str_array_to_vec(urls, url_count); + match global_runtime().block_on(pool.connect(&url_vec)) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_relay_pool_disconnect( + pool_handle: FfiHandle, + error: *mut *mut FfiError, +) -> bool { + let guard = kv::get::(pool_handle); + let pool = match guard { + Some(p) => p, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid pool handle".into(), + }, + ); + return false; + } + }; + match global_runtime().block_on(pool.disconnect()) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_relay_pool_free(handle: FfiHandle) { + kv::remove(handle); +} + +// ─── Discovery ───────────────────────────────────────────────────────── + +#[no_mangle] +pub extern "C" fn cvm_discover_servers( + pool_handle: FfiHandle, + relay_urls: *mut *mut c_char, + url_count: usize, + out_count: *mut usize, + error: *mut *mut FfiError, +) -> *mut FfiServerAnnouncement { + let guard = kv::get::(pool_handle); + let pool = match guard { + Some(p) => p, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid pool handle".into(), + }, + ); + return ptr::null_mut(); + } + }; + let urls = c_str_array_to_vec(relay_urls, url_count); + let client = pool.client(); + + let result = global_runtime() + .block_on(async { contextvm_sdk::discovery::discover_servers(client, &urls).await }); + + let announcements = match result { + Ok(a) => a, + Err(e) => { + set_error(error, e.into()); + return ptr::null_mut(); + } + }; + + let count = announcements.len(); + let ffi_announcements: Vec = announcements + .into_iter() + .map(|a| FfiServerAnnouncement { + pubkey: string_to_c(a.pubkey), + name: opt_string_to_c(a.server_info.name), + version: opt_string_to_c(a.server_info.version), + picture: opt_string_to_c(a.server_info.picture), + about: opt_string_to_c(a.server_info.about), + website: opt_string_to_c(a.server_info.website), + event_id: string_to_c(a.event_id.to_hex()), + }) + .collect(); + + unsafe { + if !out_count.is_null() { + *out_count = count; + } + } + + let mut ffi_announcements = ffi_announcements; + let ptr = ffi_announcements.as_mut_ptr(); + std::mem::forget(ffi_announcements); + ptr +} + +#[no_mangle] +pub extern "C" fn cvm_discover_tools( + pool_handle: FfiHandle, + provider_pubkey_hex: *const c_char, + provider_display_name: *const c_char, + relay_urls: *mut *mut c_char, + url_count: usize, + out_count: *mut usize, + error: *mut *mut FfiError, +) -> *mut FfiDiscoveredTool { + let guard = kv::get::(pool_handle); + let pool = match guard { + Some(p) => p, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid pool handle".into(), + }, + ); + return ptr::null_mut(); + } + }; + let provider_pubkey = match c_str_to_string(provider_pubkey_hex) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null provider pubkey".into(), + }, + ); + return ptr::null_mut(); + } + }; + let provider_display_name = c_str_to_string(provider_display_name); + let urls = c_str_array_to_vec(relay_urls, url_count); + let client = pool.client(); + + let result = global_runtime().block_on(async { + crate::discovery::discover_tools(client, &provider_pubkey, provider_display_name, &urls) + .await + }); + + match result { + Ok(tools) => tools_to_ffi_array(tools, out_count), + Err(e) => { + set_error(error, e.into()); + ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_discover_all_tools( + pool_handle: FfiHandle, + relay_urls: *mut *mut c_char, + url_count: usize, + out_count: *mut usize, + error: *mut *mut FfiError, +) -> *mut FfiDiscoveredTool { + let guard = kv::get::(pool_handle); + let pool = match guard { + Some(p) => p, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid pool handle".into(), + }, + ); + return ptr::null_mut(); + } + }; + let urls = c_str_array_to_vec(relay_urls, url_count); + let client = pool.client(); + + let result = global_runtime() + .block_on(async { crate::discovery::discover_all_tools(client, &urls).await }); + + match result { + Ok(tools) => tools_to_ffi_array(tools, out_count), + Err(e) => { + set_error(error, e.into()); + ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_fetch_provider_profiles( + pool_handle: FfiHandle, + provider_pubkeys: *mut *mut c_char, + provider_pubkey_count: usize, + relay_urls: *mut *mut c_char, + url_count: usize, + out_count: *mut usize, + error: *mut *mut FfiError, +) -> *mut FfiProviderProfile { + let guard = kv::get::(pool_handle); + let pool = match guard { + Some(p) => p, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid pool handle".into(), + }, + ); + return ptr::null_mut(); + } + }; + let pubkeys = c_str_array_to_vec(provider_pubkeys, provider_pubkey_count); + let urls = c_str_array_to_vec(relay_urls, url_count); + let client = pool.client(); + + let result = global_runtime().block_on(async { + crate::discovery::fetch_provider_profiles(client, &pubkeys, &urls).await + }); + + match result { + Ok(profiles) => profiles_to_ffi_array(profiles.into_values().collect(), out_count), + Err(e) => { + set_error(error, e.into()); + ptr::null_mut() + } + } +} + +// ─── Encryption ──────────────────────────────────────────────────────── + +#[no_mangle] +pub extern "C" fn cvm_encrypt_nip44( + keys_handle: FfiHandle, + recipient_pubkey_hex: *const c_char, + plaintext: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let keys = match kv::get::(keys_handle) { + Some(k) => k.as_ref().clone(), + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid key handle".into(), + }, + ); + return ptr::null_mut(); + } + }; + + let pk_str = match c_str_to_string(recipient_pubkey_hex) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null recipient pubkey".into(), + }, + ); + return ptr::null_mut(); + } + }; + let pk = match contextvm_sdk::signer::PublicKey::from_hex(&pk_str) { + Ok(pk) => pk, + Err(e) => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: format!("invalid pubkey: {e}"), + }, + ); + return ptr::null_mut(); + } + }; + let pt = match c_str_to_string(plaintext) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null plaintext".into(), + }, + ); + return ptr::null_mut(); + } + }; + + match global_runtime().block_on(contextvm_sdk::encryption::encrypt_nip44(&keys, &pk, &pt)) { + Ok(ct) => string_to_c(ct), + Err(e) => { + set_error(error, e.into()); + ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_decrypt_nip44( + keys_handle: FfiHandle, + sender_pubkey_hex: *const c_char, + ciphertext: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let keys = match kv::get::(keys_handle) { + Some(k) => k.as_ref().clone(), + None => { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: "invalid key handle".into(), + }, + ); + return ptr::null_mut(); + } + }; + + let pk_str = match c_str_to_string(sender_pubkey_hex) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null sender pubkey".into(), + }, + ); + return ptr::null_mut(); + } + }; + let pk = match contextvm_sdk::signer::PublicKey::from_hex(&pk_str) { + Ok(pk) => pk, + Err(e) => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: format!("invalid pubkey: {e}"), + }, + ); + return ptr::null_mut(); + } + }; + let ct = match c_str_to_string(ciphertext) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null ciphertext".into(), + }, + ); + return ptr::null_mut(); + } + }; + + match global_runtime().block_on(contextvm_sdk::encryption::decrypt_nip44(&keys, &pk, &ct)) { + Ok(pt) => string_to_c(pt), + Err(e) => { + set_error(error, e.into()); + ptr::null_mut() + } + } +} + +// ─── Utility ─────────────────────────────────────────────────────────── + +#[no_mangle] +pub extern "C" fn cvm_version() -> *mut c_char { + string_to_c(env!("CARGO_PKG_VERSION").to_string()) +} + +#[no_mangle] +pub extern "C" fn cvm_pubkey_hex_to_npub( + pubkey_hex: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let pubkey = match c_str_to_string(pubkey_hex) { + Some(s) => s, + None => { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: "null pubkey".into(), + }, + ); + return ptr::null_mut(); + } + }; + + match crate::discovery::pubkey_hex_to_npub(&pubkey) { + Ok(npub) => string_to_c(npub), + Err(e) => { + set_error(error, e.into()); + ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_error_free(e: *mut FfiError) { + if !e.is_null() { + unsafe { + let _ = Box::from_raw(e); + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_error_message(e: *const FfiError) -> *mut c_char { + if e.is_null() { + return ptr::null_mut(); + } + unsafe { string_to_c((*e).message.clone()) } +} + +#[no_mangle] +pub extern "C" fn cvm_error_code(e: *const FfiError) -> ErrorCode { + if e.is_null() { + return ErrorCode::Ok; + } + unsafe { (*e).code } +} + +fn tools_to_ffi_array( + tools: Vec, + out_count: *mut usize, +) -> *mut FfiDiscoveredTool { + let count = tools.len(); + let ffi_tools: Vec = tools + .into_iter() + .map(|tool| FfiDiscoveredTool { + provider_pubkey: string_to_c(tool.provider_pubkey), + provider_display_name: opt_string_to_c(tool.provider_display_name), + provider_name: opt_string_to_c(tool.provider_name), + provider_about: opt_string_to_c(tool.provider_about), + provider_picture: opt_string_to_c(tool.provider_picture), + provider_nip05: opt_string_to_c(tool.provider_nip05), + tool_name: string_to_c(tool.tool_name), + description: string_to_c(tool.description), + schema_json: string_to_c(tool.schema_json), + }) + .collect(); + + unsafe { + if !out_count.is_null() { + *out_count = count; + } + } + + let mut ffi_tools = ffi_tools; + let ptr = ffi_tools.as_mut_ptr(); + std::mem::forget(ffi_tools); + ptr +} + +fn profiles_to_ffi_array( + profiles: Vec, + out_count: *mut usize, +) -> *mut FfiProviderProfile { + let count = profiles.len(); + let ffi_profiles: Vec = profiles + .into_iter() + .map(|profile| FfiProviderProfile { + pubkey: string_to_c(profile.pubkey), + name: opt_string_to_c(profile.name), + about: opt_string_to_c(profile.about), + picture: opt_string_to_c(profile.picture), + nip05: opt_string_to_c(profile.nip05), + }) + .collect(); + + unsafe { + if !out_count.is_null() { + *out_count = count; + } + } + + let mut ffi_profiles = ffi_profiles; + let ptr = ffi_profiles.as_mut_ptr(); + std::mem::forget(ffi_profiles); + ptr +} diff --git a/contextvm-ffi/src/uniffi_types.rs b/contextvm-ffi/src/uniffi_types.rs new file mode 100644 index 0000000..3a17f58 --- /dev/null +++ b/contextvm-ffi/src/uniffi_types.rs @@ -0,0 +1,721 @@ +//! UniFFI-compatible types and high-level object-oriented API. +//! +//! These types are exposed via UniFFI proc-macros and provide a more ergonomic +//! interface than the flat C API. They are designed for Python, Swift, and +//! Kotlin consumers. + +use crate::builders::{ + build_sdk_client_config_from_fields, build_sdk_server_config_from_fields, ServerConfigParts, +}; +use crate::error::FfiError; +use crate::runtime::global_runtime; +use std::sync::Arc; +use std::time::Duration; + +// ─── Enum mirrors for UniFFI ─────────────────────────────────────────── + +/// Encryption mode. +#[derive(Debug, Clone, Copy, uniffi::Enum)] +pub enum EncryptionMode { + Optional, + Required, + Disabled, +} + +/// Gift-wrap mode (CEP-19). +#[derive(Debug, Clone, Copy, uniffi::Enum)] +pub enum GiftWrapMode { + Optional, + Ephemeral, + Persistent, +} + +/// JSON-RPC message type. +#[derive(Debug, Clone, uniffi::Enum)] +pub enum JsonRpcMessageType { + Request, + Response, + ErrorResponse, + Notification, +} + +// ─── Record types for UniFFI ─────────────────────────────────────────── + +/// A JSON-RPC message. +#[derive(Debug, Clone, uniffi::Record)] +pub struct JsonRpcMessage { + pub msg_type: JsonRpcMessageType, + pub payload_json: String, + pub method: String, + pub id: String, +} + +/// An incoming MCP request (server-side). +#[derive(Debug, Clone, uniffi::Record)] +pub struct IncomingRequest { + pub message: JsonRpcMessage, + pub client_pubkey: String, + pub event_id: String, + pub is_encrypted: bool, +} + +/// A discovered server announcement. +#[derive(Debug, Clone, uniffi::Record)] +pub struct ServerAnnouncement { + pub pubkey: String, + pub name: Option, + pub version: Option, + pub picture: Option, + pub about: Option, + pub website: Option, + pub event_id: String, +} + +/// Nostr profile metadata for a provider. +#[derive(Debug, Clone, uniffi::Record)] +pub struct ProviderProfile { + pub pubkey: String, + pub name: Option, + pub about: Option, + pub picture: Option, + pub nip05: Option, +} + +/// A discovered MCP tool and provider metadata used by foreign clients. +#[derive(Debug, Clone, uniffi::Record)] +pub struct DiscoveredTool { + pub provider_pubkey: String, + pub provider_display_name: Option, + pub provider_name: Option, + pub provider_about: Option, + pub provider_picture: Option, + pub provider_nip05: Option, + pub tool_name: String, + pub description: String, + pub schema_json: String, +} + +/// Server transport configuration. +#[derive(Debug, Clone, uniffi::Record)] +pub struct ServerConfig { + pub relay_urls: Vec, + pub encryption_mode: EncryptionMode, + pub gift_wrap_mode: GiftWrapMode, + pub is_announced_server: bool, + pub server_name: Option, + pub server_version: Option, + pub server_picture: Option, + pub server_about: Option, + pub server_website: Option, + pub allowed_pubkeys: Vec, + pub session_timeout_secs: u64, + pub cleanup_interval_secs: u64, +} + +impl Default for ServerConfig { + fn default() -> Self { + Self { + relay_urls: vec!["wss://relay.damus.io".to_string()], + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + is_announced_server: false, + server_name: None, + server_version: None, + server_picture: None, + server_about: None, + server_website: None, + allowed_pubkeys: vec![], + session_timeout_secs: 300, + cleanup_interval_secs: 60, + } + } +} + +/// Client transport configuration. +#[derive(Debug, Clone, uniffi::Record)] +pub struct ClientConfig { + pub relay_urls: Vec, + pub server_pubkey: String, + pub encryption_mode: EncryptionMode, + pub gift_wrap_mode: GiftWrapMode, + pub is_stateless: bool, + pub timeout_secs: u64, +} + +impl Default for ClientConfig { + fn default() -> Self { + Self { + relay_urls: vec![], + server_pubkey: String::new(), + encryption_mode: EncryptionMode::Optional, + gift_wrap_mode: GiftWrapMode::Optional, + is_stateless: false, + timeout_secs: 30, + } + } +} + +// ─── Conversion helpers ──────────────────────────────────────────────── + +fn sdk_encryption_mode(m: EncryptionMode) -> contextvm_sdk::EncryptionMode { + match m { + EncryptionMode::Optional => contextvm_sdk::EncryptionMode::Optional, + EncryptionMode::Required => contextvm_sdk::EncryptionMode::Required, + EncryptionMode::Disabled => contextvm_sdk::EncryptionMode::Disabled, + } +} + +fn sdk_gift_wrap_mode(m: GiftWrapMode) -> contextvm_sdk::GiftWrapMode { + match m { + GiftWrapMode::Optional => contextvm_sdk::GiftWrapMode::Optional, + GiftWrapMode::Ephemeral => contextvm_sdk::GiftWrapMode::Ephemeral, + GiftWrapMode::Persistent => contextvm_sdk::GiftWrapMode::Persistent, + } +} + +fn message_to_uniffi(msg: &contextvm_sdk::JsonRpcMessage) -> JsonRpcMessage { + let msg_type = match msg { + contextvm_sdk::JsonRpcMessage::Request(_) => JsonRpcMessageType::Request, + contextvm_sdk::JsonRpcMessage::Response(_) => JsonRpcMessageType::Response, + contextvm_sdk::JsonRpcMessage::ErrorResponse(_) => JsonRpcMessageType::ErrorResponse, + contextvm_sdk::JsonRpcMessage::Notification(_) => JsonRpcMessageType::Notification, + }; + + JsonRpcMessage { + msg_type, + payload_json: serde_json::to_string(msg).unwrap_or_default(), + method: msg.method().map(String::from).unwrap_or_default(), + id: msg.id().map(|v| v.to_string()).unwrap_or_default(), + } +} + +fn incoming_to_uniffi(req: &contextvm_sdk::IncomingRequest) -> IncomingRequest { + IncomingRequest { + message: message_to_uniffi(&req.message), + client_pubkey: req.client_pubkey.clone(), + event_id: req.event_id.clone(), + is_encrypted: req.is_encrypted, + } +} + +fn parse_json_rpc(json: &str) -> Result { + serde_json::from_str(json).map_err(|e| FfiError { + code: crate::error::ErrorCode::Serialization, + message: e.to_string(), + }) +} + +fn tool_to_uniffi(tool: crate::discovery::DiscoveredToolRecord) -> DiscoveredTool { + DiscoveredTool { + provider_pubkey: tool.provider_pubkey, + provider_display_name: tool.provider_display_name, + provider_name: tool.provider_name, + provider_about: tool.provider_about, + provider_picture: tool.provider_picture, + provider_nip05: tool.provider_nip05, + tool_name: tool.tool_name, + description: tool.description, + schema_json: tool.schema_json, + } +} + +fn profile_to_uniffi(profile: crate::discovery::ProviderProfileRecord) -> ProviderProfile { + ProviderProfile { + pubkey: profile.pubkey, + name: profile.name, + about: profile.about, + picture: profile.picture, + nip05: profile.nip05, + } +} + +// ─── High-level UniFFI objects ───────────────────────────────────────── + +/// A Nostr keypair. +#[derive(uniffi::Object)] +pub struct Keys { + inner: contextvm_sdk::signer::Keys, +} + +#[uniffi::export] +impl Keys { + /// Generate a new random keypair. + #[uniffi::constructor] + pub fn generate() -> Self { + Self { + inner: contextvm_sdk::signer::generate(), + } + } + + /// Create keys from a secret key (hex or nsec/bech32). + #[uniffi::constructor] + pub fn from_secret_key(sk: &str) -> Result { + contextvm_sdk::signer::from_sk(sk) + .map(|inner| Self { inner }) + .map_err(|e| FfiError { + code: crate::error::ErrorCode::Other, + message: e.to_string(), + }) + } + + /// Get the public key (hex). + pub fn public_key(&self) -> String { + self.inner.public_key().to_hex() + } + + /// Get the secret key (hex). + pub fn secret_key(&self) -> String { + self.inner.secret_key().to_secret_hex() + } +} + +/// A relay pool for Nostr connectivity. +#[derive(uniffi::Object)] +pub struct RelayPool { + inner: contextvm_sdk::RelayPool, +} + +#[uniffi::export] +impl RelayPool { + /// Create a new relay pool. + #[uniffi::constructor] + pub fn new(keys: &Keys) -> Result { + global_runtime() + .block_on(contextvm_sdk::RelayPool::new(keys.inner.clone())) + .map(|inner| Self { inner }) + .map_err(FfiError::from) + } + + /// Connect to relays. + pub fn connect(&self, relay_urls: Vec) -> Result<(), FfiError> { + global_runtime() + .block_on(self.inner.connect(&relay_urls)) + .map_err(FfiError::from) + } + + /// Disconnect from all relays. + pub fn disconnect(&self) -> Result<(), FfiError> { + global_runtime() + .block_on(self.inner.disconnect()) + .map_err(FfiError::from) + } +} + +/// A server transport that receives MCP requests over Nostr. +#[derive(uniffi::Object)] +pub struct Server { + transport: Arc>, + receiver: Arc< + tokio::sync::Mutex>, + >, +} + +#[uniffi::export] +impl Server { + /// Create and start a server transport. + #[uniffi::constructor] + pub fn new(keys: &Keys, config: &ServerConfig) -> Result { + let sdk_config = build_sdk_server_config_from_fields(ServerConfigParts { + relay_urls: config.relay_urls.clone(), + encryption_mode: sdk_encryption_mode(config.encryption_mode), + gift_wrap_mode: sdk_gift_wrap_mode(config.gift_wrap_mode), + server_name: config.server_name.clone(), + server_version: config.server_version.clone(), + server_picture: config.server_picture.clone(), + server_about: config.server_about.clone(), + server_website: config.server_website.clone(), + is_announced_server: config.is_announced_server, + allowed_pubkeys: config.allowed_pubkeys.clone(), + session_timeout_secs: config.session_timeout_secs, + cleanup_interval_secs: config.cleanup_interval_secs, + }); + + global_runtime() + .block_on(async { + let mut transport = + contextvm_sdk::NostrServerTransport::new(keys.inner.clone(), sdk_config) + .await?; + transport.start().await?; + let receiver = transport + .take_message_receiver() + .ok_or_else(|| contextvm_sdk::Error::Other("receiver already taken".into()))?; + Ok::<_, contextvm_sdk::Error>(Self { + transport: Arc::new(tokio::sync::Mutex::new(transport)), + receiver: Arc::new(tokio::sync::Mutex::new(receiver)), + }) + }) + .map_err(FfiError::from) + } + + /// Receive the next incoming request. Blocks until one is available. + pub fn recv(&self) -> Result { + let rx = self.receiver.clone(); + global_runtime() + .block_on(async { + let mut guard = rx.lock().await; + guard.recv().await + }) + .map(|req| incoming_to_uniffi(&req)) + .ok_or_else(|| FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }) + } + + /// Send a response for a given event ID. + pub fn send_response(&self, event_id: &str, payload_json: &str) -> Result<(), FfiError> { + let message = parse_json_rpc(payload_json)?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.send_response(event_id, message).await + }) + .map_err(FfiError::from) + } + + /// Publish server announcement. + pub fn announce(&self) -> Result<(), FfiError> { + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.announce().await + }) + .map(|_| ()) + .map_err(FfiError::from) + } + + /// Close the server transport. + pub fn close(&self) -> Result<(), FfiError> { + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let mut guard = transport.lock().await; + guard.close().await + }) + .map_err(FfiError::from) + } +} + +/// A client transport that sends MCP requests over Nostr. +#[derive(uniffi::Object)] +pub struct Client { + transport: Arc>, + receiver: Arc< + tokio::sync::Mutex>, + >, +} + +#[uniffi::export] +impl Client { + /// Create and start a client transport. + #[uniffi::constructor] + pub fn new(keys: &Keys, config: &ClientConfig) -> Result { + let sdk_config = build_sdk_client_config_from_fields( + config.relay_urls.clone(), + config.server_pubkey.clone(), + sdk_encryption_mode(config.encryption_mode), + sdk_gift_wrap_mode(config.gift_wrap_mode), + config.is_stateless, + config.timeout_secs, + ); + + global_runtime() + .block_on(async { + let mut transport = + contextvm_sdk::NostrClientTransport::new(keys.inner.clone(), sdk_config) + .await?; + transport.start().await?; + let receiver = transport + .take_message_receiver() + .ok_or_else(|| contextvm_sdk::Error::Other("receiver already taken".into()))?; + Ok::<_, contextvm_sdk::Error>(Self { + transport: Arc::new(tokio::sync::Mutex::new(transport)), + receiver: Arc::new(tokio::sync::Mutex::new(receiver)), + }) + }) + .map_err(FfiError::from) + } + + /// Send a JSON-RPC message. + pub fn send(&self, payload_json: &str) -> Result<(), FfiError> { + let message = parse_json_rpc(payload_json)?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.send(&message).await + }) + .map_err(FfiError::from) + } + + /// Receive the next response. Blocks until one is available. + pub fn recv(&self) -> Result { + let rx = self.receiver.clone(); + global_runtime() + .block_on(async { + let mut guard = rx.lock().await; + guard.recv().await + }) + .map(|msg| message_to_uniffi(&msg)) + .ok_or_else(|| FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }) + } + + /// Close the client transport. + pub fn close(&self) -> Result<(), FfiError> { + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let mut guard = transport.lock().await; + guard.close().await + }) + .map_err(FfiError::from) + } +} + +/// A proxy that connects a local MCP client to a remote Nostr MCP server. +#[derive(uniffi::Object)] +pub struct Proxy { + proxy: Arc>, + receiver: Arc< + tokio::sync::Mutex>, + >, +} + +#[uniffi::export] +impl Proxy { + /// Create and start a proxy transport. + #[uniffi::constructor] + pub fn new(keys: &Keys, config: &ClientConfig) -> Result { + let sdk_config = build_sdk_client_config_from_fields( + config.relay_urls.clone(), + config.server_pubkey.clone(), + sdk_encryption_mode(config.encryption_mode), + sdk_gift_wrap_mode(config.gift_wrap_mode), + config.is_stateless, + config.timeout_secs, + ); + let proxy_config = contextvm_sdk::proxy::ProxyConfig::new(sdk_config); + + global_runtime() + .block_on(async { + let mut proxy = + contextvm_sdk::proxy::NostrMCPProxy::new(keys.inner.clone(), proxy_config) + .await?; + let receiver = proxy.start().await?; + Ok::<_, contextvm_sdk::Error>(Self { + proxy: Arc::new(tokio::sync::Mutex::new(proxy)), + receiver: Arc::new(tokio::sync::Mutex::new(receiver)), + }) + }) + .map_err(FfiError::from) + } + + /// Send a JSON-RPC message through the proxy. + pub fn send(&self, payload_json: &str) -> Result<(), FfiError> { + let message = parse_json_rpc(payload_json)?; + let proxy = self.proxy.clone(); + global_runtime() + .block_on(async { + let guard = proxy.lock().await; + guard.send(&message).await + }) + .map_err(FfiError::from) + } + + /// Receive the next response or notification. + pub fn recv(&self) -> Result { + let rx = self.receiver.clone(); + global_runtime() + .block_on(async { + let mut guard = rx.lock().await; + guard.recv().await + }) + .map(|msg| message_to_uniffi(&msg)) + .ok_or_else(|| FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }) + } + + /// Receive the next response or notification, timing out after `timeout_secs`. + pub fn recv_timeout(&self, timeout_secs: u64) -> Result { + let rx = self.receiver.clone(); + match global_runtime().block_on(async { + let mut guard = rx.lock().await; + tokio::time::timeout(Duration::from_secs(timeout_secs), guard.recv()).await + }) { + Ok(Some(msg)) => Ok(message_to_uniffi(&msg)), + Ok(None) => Err(FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }), + Err(_) => Err(FfiError { + code: crate::error::ErrorCode::Timeout, + message: "receive timed out".into(), + }), + } + } + + /// Stop the proxy transport. + pub fn stop(&self) -> Result<(), FfiError> { + let proxy = self.proxy.clone(); + global_runtime() + .block_on(async { + let mut guard = proxy.lock().await; + guard.stop().await + }) + .map_err(FfiError::from) + } +} + +/// Discovery functions. +#[derive(uniffi::Object)] +pub struct Discovery; + +#[uniffi::export] +impl Discovery { + #[uniffi::constructor] + pub fn new() -> Self { + Self + } + + /// Discover MCP servers on the given relay URLs. + pub fn discover_servers( + &self, + pool: &RelayPool, + relay_urls: Vec, + ) -> Result, FfiError> { + let client = pool.inner.client(); + global_runtime() + .block_on(async { + contextvm_sdk::discovery::discover_servers(client, &relay_urls).await + }) + .map(|announcements| { + announcements + .into_iter() + .map(|a| ServerAnnouncement { + pubkey: a.pubkey, + name: a.server_info.name, + version: a.server_info.version, + picture: a.server_info.picture, + about: a.server_info.about, + website: a.server_info.website, + event_id: a.event_id.to_hex(), + }) + .collect() + }) + .map_err(FfiError::from) + } + + /// Discover MCP tools published by a specific provider. + pub fn discover_tools( + &self, + pool: &RelayPool, + provider_pubkey: String, + provider_display_name: Option, + relay_urls: Vec, + ) -> Result, FfiError> { + let client = pool.inner.client(); + global_runtime() + .block_on(async { + crate::discovery::discover_tools( + client, + &provider_pubkey, + provider_display_name, + &relay_urls, + ) + .await + }) + .map(|tools| tools.into_iter().map(tool_to_uniffi).collect()) + .map_err(FfiError::from) + } + + /// Discover server announcements, tools, and provider profiles in one pass. + pub fn discover_all_tools( + &self, + pool: &RelayPool, + relay_urls: Vec, + ) -> Result, FfiError> { + let client = pool.inner.client(); + global_runtime() + .block_on(async { crate::discovery::discover_all_tools(client, &relay_urls).await }) + .map(|tools| tools.into_iter().map(tool_to_uniffi).collect()) + .map_err(FfiError::from) + } + + /// Fetch Nostr kind-0 provider profiles for a set of provider pubkeys. + pub fn fetch_provider_profiles( + &self, + pool: &RelayPool, + provider_pubkeys: Vec, + relay_urls: Vec, + ) -> Result, FfiError> { + let client = pool.inner.client(); + global_runtime() + .block_on(async { + crate::discovery::fetch_provider_profiles(client, &provider_pubkeys, &relay_urls) + .await + }) + .map(|profiles| profiles.into_values().map(profile_to_uniffi).collect()) + .map_err(FfiError::from) + } +} + +impl Default for Discovery { + fn default() -> Self { + Self::new() + } +} + +// ─── Top-level functions ─────────────────────────────────────────────── + +/// Get the library version. +#[uniffi::export] +pub fn version() -> String { + env!("CARGO_PKG_VERSION").to_string() +} + +/// Convert a hex public key to npub bech32. +#[uniffi::export] +pub fn pubkey_hex_to_npub(pubkey_hex: String) -> Result { + crate::discovery::pubkey_hex_to_npub(&pubkey_hex).map_err(FfiError::from) +} + +/// Helper: build a JSON-RPC request as a JSON string. +#[uniffi::export] +pub fn make_request(id: String, method: String, params: Option) -> String { + let msg = contextvm_sdk::JsonRpcMessage::Request(contextvm_sdk::JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(id), + method, + params: params.and_then(|p| serde_json::from_str(&p).ok()), + }); + serde_json::to_string(&msg).unwrap_or_default() +} + +/// Helper: build a JSON-RPC notification as a JSON string. +#[uniffi::export] +pub fn make_notification(method: String, params: Option) -> String { + let msg = contextvm_sdk::JsonRpcMessage::Notification(contextvm_sdk::JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method, + params: params.and_then(|p| serde_json::from_str(&p).ok()), + }); + serde_json::to_string(&msg).unwrap_or_default() +} + +/// Helper: build a JSON-RPC response as a JSON string. +#[uniffi::export] +pub fn make_response(id: String, result: String) -> String { + let msg = contextvm_sdk::JsonRpcMessage::Response(contextvm_sdk::JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(id), + result: serde_json::from_str(&result).unwrap_or(serde_json::json!(null)), + }); + serde_json::to_string(&msg).unwrap_or_default() +} From 30c6aa2be9fcea8b3287c9ea2aec44f444dece08 Mon Sep 17 00:00:00 2001 From: Aljaz Ceru Date: Fri, 29 May 2026 16:24:35 +0200 Subject: [PATCH 105/116] fixing minor issues, features --- contextvm-ffi/README.md | 15 + contextvm-ffi/headers/contextvm.h | 53 ++- contextvm-ffi/src/builders.rs | 467 ++++++++++++++++++++++--- contextvm-ffi/src/channel.rs | 560 ++++++++++++++++++++++++++++-- contextvm-ffi/src/types.rs | 254 +++++++++++--- contextvm-ffi/src/uniffi_types.rs | 428 ++++++++++++++++++++++- src/gateway/mod.rs | 1 + src/transport/server/mod.rs | 47 ++- 8 files changed, 1683 insertions(+), 142 deletions(-) diff --git a/contextvm-ffi/README.md b/contextvm-ffi/README.md index ed74c6b..40accba 100644 --- a/contextvm-ffi/README.md +++ b/contextvm-ffi/README.md @@ -60,6 +60,21 @@ cvm_keys_free(keys); Errors are opaque. Use `cvm_error_code`, `cvm_error_message`, and `cvm_error_free` to inspect and release them. +Mode fields in `CvmServerConfig` and `CvmClientConfig` are raw `int32_t` +values. Set them with the `CVM_ENCRYPTION_*` and `CVM_GIFTWRAP_*` constants; +invalid values are rejected with `CVM_VALIDATION`. + +## JSON Arguments + +Several parity APIs use JSON strings to represent SDK values that are not +portable C structs: + +- `profile_metadata_json`: a `ProfileMetadata` JSON object. +- `*_publish_tools/resources/prompts/resource_templates`: a JSON array of MCP + capability objects. +- `*_set_announcement_*_tags`: a JSON array of Nostr tag arrays, for example + `[["pricing","free"]]`. + ## Memory Management Rust-owned values returned through the C ABI must be released by the caller: diff --git a/contextvm-ffi/headers/contextvm.h b/contextvm-ffi/headers/contextvm.h index 6b631e1..a326cec 100644 --- a/contextvm-ffi/headers/contextvm.h +++ b/contextvm-ffi/headers/contextvm.h @@ -72,7 +72,7 @@ typedef enum { /* ─── Structs ──────────────────────────────────────────────────────── */ typedef struct { - CvmJsonRpcType msg_type; + int32_t msg_type; /* one of CvmJsonRpcType */ char *payload_json; /* owned JSON string */ char *method; /* owned, may be NULL */ char *id; /* owned, may be NULL */ @@ -115,31 +115,56 @@ typedef struct { char *nip05; /* owned, may be NULL */ } CvmProviderProfile; +typedef struct { + char *method; /* required */ + char *name; /* optional */ +} CvmCapabilityExclusion; + +typedef struct { + bool supports_encryption; + bool supports_ephemeral_encryption; + bool supports_oversized_transfer; +} CvmPeerCapabilities; + typedef struct { char **relay_urls; size_t relay_url_count; - CvmEncryptionMode encryption_mode; - CvmGiftWrapMode gift_wrap_mode; + int32_t encryption_mode; /* one of CvmEncryptionMode */ + int32_t gift_wrap_mode; /* one of CvmGiftWrapMode */ bool is_announced_server; char *server_name; /* may be NULL */ char *server_version; /* may be NULL */ char *server_picture; /* may be NULL */ char *server_about; /* may be NULL */ char *server_website; /* may be NULL */ - char **allowed_pubkeys; + char **allowed_pubkeys; /* if count > 0, pointer and entries must be non-NULL UTF-8 */ size_t allowed_pubkey_count; uint64_t session_timeout_secs; uint64_t cleanup_interval_secs; + CvmCapabilityExclusion *excluded_capabilities; + size_t excluded_capability_count; + size_t max_sessions; /* 0 keeps SDK default */ + uint64_t request_timeout_secs; /* 0 keeps SDK default */ + char **relay_list_urls; + size_t relay_list_url_count; + char **bootstrap_relay_urls; + size_t bootstrap_relay_url_count; + bool publish_relay_list; + char *profile_metadata_json; /* optional ProfileMetadata JSON object */ } CvmServerConfig; typedef struct { char **relay_urls; size_t relay_url_count; char *server_pubkey; /* required */ - CvmEncryptionMode encryption_mode; - CvmGiftWrapMode gift_wrap_mode; + int32_t encryption_mode; /* one of CvmEncryptionMode */ + int32_t gift_wrap_mode; /* one of CvmGiftWrapMode */ bool is_stateless; uint64_t timeout_secs; + char **discovery_relay_urls; + size_t discovery_relay_url_count; + char **fallback_operational_relay_urls; + size_t fallback_operational_relay_url_count; } CvmClientConfig; /* ─── Free Functions ───────────────────────────────────────────────── */ @@ -178,7 +203,17 @@ void cvm_relay_pool_free(CvmHandle handle); CvmHandle cvm_server_ch_new(CvmHandle keys_handle, CvmServerConfig config, CvmError **error); bool cvm_server_ch_recv(CvmHandle handle, CvmIncomingRequest *out_req, CvmError **error); bool cvm_server_ch_send_response(CvmHandle handle, const char *event_id, const char *payload_json, CvmError **error); +bool cvm_server_ch_send_notification(CvmHandle handle, const char *client_pubkey, const char *payload_json, const char *correlated_event_id, CvmError **error); +bool cvm_server_ch_broadcast_notification(CvmHandle handle, const char *payload_json, CvmError **error); +bool cvm_server_ch_set_announcement_extra_tags(CvmHandle handle, const char *tags_json, CvmError **error); +bool cvm_server_ch_set_announcement_pricing_tags(CvmHandle handle, const char *tags_json, CvmError **error); bool cvm_server_ch_announce(CvmHandle handle, CvmError **error); +char *cvm_server_ch_announce_event_id(CvmHandle handle, CvmError **error); +char *cvm_server_ch_publish_tools(CvmHandle handle, const char *tools_json, CvmError **error); +char *cvm_server_ch_publish_resources(CvmHandle handle, const char *resources_json, CvmError **error); +char *cvm_server_ch_publish_prompts(CvmHandle handle, const char *prompts_json, CvmError **error); +char *cvm_server_ch_publish_resource_templates(CvmHandle handle, const char *templates_json, CvmError **error); +bool cvm_server_ch_delete_announcements(CvmHandle handle, const char *reason, CvmError **error); bool cvm_server_ch_close(CvmHandle handle, CvmError **error); /* ─── Client (channel-based) ──────────────────────────────────────── */ @@ -186,6 +221,9 @@ bool cvm_server_ch_close(CvmHandle handle, CvmError **error); CvmHandle cvm_client_ch_new(CvmHandle keys_handle, CvmClientConfig config, CvmError **error); bool cvm_client_ch_send(CvmHandle handle, const char *payload_json, CvmError **error); bool cvm_client_ch_recv(CvmHandle handle, CvmJsonRpcMessage *out_msg, CvmError **error); +bool cvm_client_ch_discovered_server_capabilities(CvmHandle handle, CvmPeerCapabilities *out_caps, CvmError **error); +bool cvm_client_ch_server_supports_ephemeral_encryption(CvmHandle handle, CvmError **error); +char *cvm_client_ch_server_initialize_event_json(CvmHandle handle, CvmError **error); bool cvm_client_ch_close(CvmHandle handle, CvmError **error); /* ─── Gateway (channel-based) ─────────────────────────────────────── */ @@ -194,6 +232,8 @@ CvmHandle cvm_gateway_ch_new(CvmHandle keys_handle, CvmServerConfig config, CvmE bool cvm_gateway_ch_recv(CvmHandle handle, CvmIncomingRequest *out_req, CvmError **error); bool cvm_gateway_ch_send_response(CvmHandle handle, const char *event_id, const char *payload_json, CvmError **error); bool cvm_gateway_ch_announce(CvmHandle handle, CvmError **error); +char *cvm_gateway_ch_announce_event_id(CvmHandle handle, CvmError **error); +bool cvm_gateway_ch_is_active(CvmHandle handle, CvmError **error); bool cvm_gateway_ch_stop(CvmHandle handle, CvmError **error); /* ─── Proxy (channel-based) ───────────────────────────────────────── */ @@ -202,6 +242,7 @@ CvmHandle cvm_proxy_ch_new(CvmHandle keys_handle, CvmClientConfig config, CvmErr bool cvm_proxy_ch_send(CvmHandle handle, const char *payload_json, CvmError **error); bool cvm_proxy_ch_recv(CvmHandle handle, CvmJsonRpcMessage *out_msg, CvmError **error); bool cvm_proxy_ch_recv_timeout(CvmHandle handle, uint64_t timeout_secs, CvmJsonRpcMessage *out_msg, CvmError **error); +bool cvm_proxy_ch_is_active(CvmHandle handle, CvmError **error); bool cvm_proxy_ch_stop(CvmHandle handle, CvmError **error); /* ─── Discovery ────────────────────────────────────────────────────── */ diff --git a/contextvm-ffi/src/builders.rs b/contextvm-ffi/src/builders.rs index e6c726d..3ec2a6d 100644 --- a/contextvm-ffi/src/builders.rs +++ b/contextvm-ffi/src/builders.rs @@ -6,7 +6,12 @@ use std::time::Duration; -use crate::types::{c_str_array_to_vec, c_str_to_string, FfiClientConfig, FfiServerConfig}; +use crate::error::{ErrorCode, FfiError}; +use crate::types::{ + c_str_array_to_vec_checked, c_str_to_string_checked, ffi_encryption_mode_to_sdk, + ffi_gift_wrap_mode_to_sdk, optional_c_str_to_string_checked, FfiCapabilityExclusion, + FfiClientConfig, FfiServerConfig, +}; pub struct ServerConfigParts { pub relay_urls: Vec, @@ -21,6 +26,30 @@ pub struct ServerConfigParts { pub allowed_pubkeys: Vec, pub session_timeout_secs: u64, pub cleanup_interval_secs: u64, + pub excluded_capabilities: Vec, + pub max_sessions: usize, + pub request_timeout_secs: u64, + pub relay_list_urls: Vec, + pub bootstrap_relay_urls: Vec, + pub publish_relay_list: bool, + pub profile_metadata_json: Option, +} + +pub struct ClientConfigParts { + pub relay_urls: Vec, + pub server_pubkey: String, + pub encryption_mode: contextvm_sdk::EncryptionMode, + pub gift_wrap_mode: contextvm_sdk::GiftWrapMode, + pub is_stateless: bool, + pub timeout_secs: u64, + pub discovery_relay_urls: Vec, + pub fallback_operational_relay_urls: Vec, +} + +#[derive(Clone)] +pub struct CapabilityExclusionParts { + pub method: String, + pub name: Option, } /// Build a `ServerInfo` from FFI C strings. @@ -62,17 +91,42 @@ pub fn build_server_info( /// Extract fields from an FfiServerConfig and build an SDK server config. pub fn build_sdk_server_config( config: &FfiServerConfig, -) -> contextvm_sdk::NostrServerTransportConfig { - let relay_urls = c_str_array_to_vec(config.relay_urls, config.relay_url_count); - let allowed = c_str_array_to_vec(config.allowed_pubkeys, config.allowed_pubkey_count); +) -> Result { + let relay_urls = + c_str_array_to_vec_checked(config.relay_urls, config.relay_url_count, "relay_urls")?; + let allowed = c_str_array_to_vec_checked( + config.allowed_pubkeys, + config.allowed_pubkey_count, + "allowed_pubkeys", + )?; + let excluded = ffi_capability_exclusions_to_parts( + config.excluded_capabilities, + config.excluded_capability_count, + )?; + let relay_list_urls = c_str_array_to_vec_checked( + config.relay_list_urls, + config.relay_list_url_count, + "relay_list_urls", + )?; + let bootstrap_relay_urls = c_str_array_to_vec_checked( + config.bootstrap_relay_urls, + config.bootstrap_relay_url_count, + "bootstrap_relay_urls", + )?; + let encryption_mode = ffi_encryption_mode_to_sdk(config.encryption_mode)?; + let gift_wrap_mode = ffi_gift_wrap_mode_to_sdk(config.gift_wrap_mode)?; let server_info = build_server_info( - c_str_to_string(config.server_name), - c_str_to_string(config.server_version), - c_str_to_string(config.server_picture), - c_str_to_string(config.server_about), - c_str_to_string(config.server_website), + optional_c_str_to_string_checked(config.server_name, "server_name")?, + optional_c_str_to_string_checked(config.server_version, "server_version")?, + optional_c_str_to_string_checked(config.server_picture, "server_picture")?, + optional_c_str_to_string_checked(config.server_about, "server_about")?, + optional_c_str_to_string_checked(config.server_website, "server_website")?, ); + let profile_metadata = parse_profile_metadata_json(optional_c_str_to_string_checked( + config.profile_metadata_json, + "profile_metadata_json", + )?)?; let mut sdk_config = contextvm_sdk::NostrServerTransportConfig::default() .with_relay_urls(if relay_urls.is_empty() { @@ -80,42 +134,67 @@ pub fn build_sdk_server_config( } else { relay_urls }) - .with_encryption_mode(config.encryption_mode.into()) - .with_gift_wrap_mode(config.gift_wrap_mode.into()) + .with_encryption_mode(encryption_mode) + .with_gift_wrap_mode(gift_wrap_mode) .with_announced_server(config.is_announced_server) .with_allowed_public_keys(allowed) .with_session_timeout(Duration::from_secs(config.session_timeout_secs.max(1))) - .with_cleanup_interval(Duration::from_secs(config.cleanup_interval_secs.max(1))); + .with_cleanup_interval(Duration::from_secs(config.cleanup_interval_secs.max(1))) + .with_publish_relay_list(config.publish_relay_list); if let Some(server_info) = server_info { sdk_config = sdk_config.with_server_info(server_info); } - sdk_config + sdk_config = apply_extended_server_config( + sdk_config, + excluded, + config.max_sessions, + config.request_timeout_secs, + relay_list_urls, + bootstrap_relay_urls, + profile_metadata, + ); + + Ok(sdk_config) } /// Extract fields from an FfiClientConfig and build an SDK client config. pub fn build_sdk_client_config( config: &FfiClientConfig, -) -> Option { - let server_pubkey = c_str_to_string(config.server_pubkey)?; - let relay_urls = c_str_array_to_vec(config.relay_urls, config.relay_url_count); - - Some( - contextvm_sdk::NostrClientTransportConfig::default() - .with_relay_urls(relay_urls) - .with_server_pubkey(server_pubkey) - .with_encryption_mode(config.encryption_mode.into()) - .with_gift_wrap_mode(config.gift_wrap_mode.into()) - .with_stateless(config.is_stateless) - .with_timeout(Duration::from_secs(config.timeout_secs.max(1))), - ) +) -> Result { + let server_pubkey = c_str_to_string_checked(config.server_pubkey, "server_pubkey")?; + let relay_urls = + c_str_array_to_vec_checked(config.relay_urls, config.relay_url_count, "relay_urls")?; + let discovery_relay_urls = c_str_array_to_vec_checked( + config.discovery_relay_urls, + config.discovery_relay_url_count, + "discovery_relay_urls", + )?; + let fallback_operational_relay_urls = c_str_array_to_vec_checked( + config.fallback_operational_relay_urls, + config.fallback_operational_relay_url_count, + "fallback_operational_relay_urls", + )?; + let encryption_mode = ffi_encryption_mode_to_sdk(config.encryption_mode)?; + let gift_wrap_mode = ffi_gift_wrap_mode_to_sdk(config.gift_wrap_mode)?; + + Ok(build_sdk_client_config_from_fields(ClientConfigParts { + relay_urls, + server_pubkey, + encryption_mode, + gift_wrap_mode, + is_stateless: config.is_stateless, + timeout_secs: config.timeout_secs, + discovery_relay_urls, + fallback_operational_relay_urls, + })) } /// Build a server config from UniFFI record fields. pub fn build_sdk_server_config_from_fields( parts: ServerConfigParts, -) -> contextvm_sdk::NostrServerTransportConfig { +) -> Result { let server_info = build_server_info( parts.server_name, parts.server_version, @@ -123,6 +202,7 @@ pub fn build_sdk_server_config_from_fields( parts.server_about, parts.server_website, ); + let profile_metadata = parse_profile_metadata_json(parts.profile_metadata_json)?; let mut sdk_config = contextvm_sdk::NostrServerTransportConfig::default() .with_relay_urls(if parts.relay_urls.is_empty() { @@ -135,36 +215,183 @@ pub fn build_sdk_server_config_from_fields( .with_announced_server(parts.is_announced_server) .with_allowed_public_keys(parts.allowed_pubkeys) .with_session_timeout(Duration::from_secs(parts.session_timeout_secs.max(1))) - .with_cleanup_interval(Duration::from_secs(parts.cleanup_interval_secs.max(1))); + .with_cleanup_interval(Duration::from_secs(parts.cleanup_interval_secs.max(1))) + .with_publish_relay_list(parts.publish_relay_list); if let Some(server_info) = server_info { sdk_config = sdk_config.with_server_info(server_info); } - sdk_config + sdk_config = apply_extended_server_config( + sdk_config, + parts.excluded_capabilities, + parts.max_sessions, + parts.request_timeout_secs, + parts.relay_list_urls, + parts.bootstrap_relay_urls, + profile_metadata, + ); + + Ok(sdk_config) } /// Build a client config from UniFFI record fields. pub fn build_sdk_client_config_from_fields( - relay_urls: Vec, - server_pubkey: String, - encryption_mode: contextvm_sdk::EncryptionMode, - gift_wrap_mode: contextvm_sdk::GiftWrapMode, - is_stateless: bool, - timeout_secs: u64, + parts: ClientConfigParts, ) -> contextvm_sdk::NostrClientTransportConfig { - contextvm_sdk::NostrClientTransportConfig::default() - .with_relay_urls(relay_urls) - .with_server_pubkey(server_pubkey) - .with_encryption_mode(encryption_mode) - .with_gift_wrap_mode(gift_wrap_mode) - .with_stateless(is_stateless) - .with_timeout(Duration::from_secs(timeout_secs.max(1))) + let mut config = contextvm_sdk::NostrClientTransportConfig::default() + .with_relay_urls(parts.relay_urls) + .with_server_pubkey(parts.server_pubkey) + .with_encryption_mode(parts.encryption_mode) + .with_gift_wrap_mode(parts.gift_wrap_mode) + .with_stateless(parts.is_stateless) + .with_timeout(Duration::from_secs(parts.timeout_secs.max(1))); + + if !parts.discovery_relay_urls.is_empty() { + config = config.with_discovery_relay_urls(parts.discovery_relay_urls); + } + if !parts.fallback_operational_relay_urls.is_empty() { + config = config.with_fallback_operational_relay_urls(parts.fallback_operational_relay_urls); + } + + config +} + +fn apply_extended_server_config( + mut config: contextvm_sdk::NostrServerTransportConfig, + excluded_capabilities: Vec, + max_sessions: usize, + request_timeout_secs: u64, + relay_list_urls: Vec, + bootstrap_relay_urls: Vec, + profile_metadata: Option, +) -> contextvm_sdk::NostrServerTransportConfig { + if !excluded_capabilities.is_empty() { + config = config.with_excluded_capabilities( + excluded_capabilities + .into_iter() + .map(|cap| contextvm_sdk::CapabilityExclusion { + method: cap.method, + name: cap.name, + }) + .collect(), + ); + } + if max_sessions > 0 { + config = config.with_max_sessions(max_sessions); + } + if request_timeout_secs > 0 { + config = config.with_request_timeout(Duration::from_secs(request_timeout_secs)); + } + if !relay_list_urls.is_empty() { + config = config.with_relay_list_urls(relay_list_urls); + } + if !bootstrap_relay_urls.is_empty() { + config = config.with_bootstrap_relay_urls(bootstrap_relay_urls); + } + if let Some(profile_metadata) = profile_metadata { + config = config.with_profile_metadata(profile_metadata); + } + config +} + +fn ffi_capability_exclusions_to_parts( + ptr: *mut FfiCapabilityExclusion, + count: usize, +) -> Result, FfiError> { + if count == 0 { + return Ok(Vec::new()); + } + if ptr.is_null() { + return Err(FfiError { + code: ErrorCode::Validation, + message: format!("excluded_capabilities has count {count} but null pointer"), + }); + } + + unsafe { + std::slice::from_raw_parts(ptr, count) + .iter() + .map(|cap| { + let method = c_str_to_string_checked(cap.method, "capability_exclusions[].method")?; + Ok(CapabilityExclusionParts { + method, + name: optional_c_str_to_string_checked( + cap.name, + "capability_exclusions[].name", + )?, + }) + }) + .collect() + } +} + +fn parse_profile_metadata_json( + json: Option, +) -> Result, FfiError> { + match json { + Some(json) if !json.trim().is_empty() => { + serde_json::from_str(&json).map(Some).map_err(|e| FfiError { + code: ErrorCode::Serialization, + message: format!("invalid profile_metadata_json: {e}"), + }) + } + _ => Ok(None), + } } #[cfg(test)] mod tests { use super::*; + use crate::types::{ENCRYPTION_MODE_OPTIONAL, GIFT_WRAP_MODE_OPTIONAL}; + use std::ffi::CString; + use std::os::raw::c_char; + use std::ptr; + + fn minimal_ffi_server_config() -> FfiServerConfig { + FfiServerConfig { + relay_urls: ptr::null_mut(), + relay_url_count: 0, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_announced_server: false, + server_name: ptr::null_mut(), + server_version: ptr::null_mut(), + server_picture: ptr::null_mut(), + server_about: ptr::null_mut(), + server_website: ptr::null_mut(), + allowed_pubkeys: ptr::null_mut(), + allowed_pubkey_count: 0, + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: ptr::null_mut(), + excluded_capability_count: 0, + max_sessions: 0, + request_timeout_secs: 0, + relay_list_urls: ptr::null_mut(), + relay_list_url_count: 0, + bootstrap_relay_urls: ptr::null_mut(), + bootstrap_relay_url_count: 0, + publish_relay_list: false, + profile_metadata_json: ptr::null_mut(), + } + } + + fn minimal_ffi_client_config(server_pubkey: *mut c_char) -> FfiClientConfig { + FfiClientConfig { + relay_urls: ptr::null_mut(), + relay_url_count: 0, + server_pubkey, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_stateless: false, + timeout_secs: 30, + discovery_relay_urls: ptr::null_mut(), + discovery_relay_url_count: 0, + fallback_operational_relay_urls: ptr::null_mut(), + fallback_operational_relay_url_count: 0, + } + } #[test] fn omitted_server_info_matches_sdk_default() { @@ -183,7 +410,15 @@ mod tests { allowed_pubkeys: vec![], session_timeout_secs: 300, cleanup_interval_secs: 60, - }); + excluded_capabilities: vec![], + max_sessions: 0, + request_timeout_secs: 0, + relay_list_urls: vec![], + bootstrap_relay_urls: vec![], + publish_relay_list: true, + profile_metadata_json: None, + }) + .expect("config should build"); assert!(config.server_info.is_none()); } @@ -205,4 +440,150 @@ mod tests { assert_eq!(info.about.as_deref(), Some("about")); assert_eq!(info.website.as_deref(), Some("https://example.com")); } + + #[test] + fn server_config_preserves_extended_fields() { + let config = build_sdk_server_config_from_fields(ServerConfigParts { + relay_urls: vec!["wss://relay.example.com".to_string()], + encryption_mode: contextvm_sdk::EncryptionMode::Optional, + gift_wrap_mode: contextvm_sdk::GiftWrapMode::Optional, + server_name: None, + server_version: None, + server_picture: None, + server_about: None, + server_website: None, + is_announced_server: false, + allowed_pubkeys: vec![], + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: vec![CapabilityExclusionParts { + method: "tools/call".to_string(), + name: Some("get_weather".to_string()), + }], + max_sessions: 42, + request_timeout_secs: 17, + relay_list_urls: vec!["wss://relay-list.example.com".to_string()], + bootstrap_relay_urls: vec!["wss://bootstrap.example.com".to_string()], + publish_relay_list: false, + profile_metadata_json: Some(r#"{"name":"profile","nip05":"bot@example.com"}"#.into()), + }) + .expect("config should build"); + + assert_eq!(config.excluded_capabilities.len(), 1); + assert_eq!(config.max_sessions, 42); + assert_eq!(config.request_timeout.as_secs(), 17); + assert_eq!( + config.relay_list_urls.as_deref(), + Some(&["wss://relay-list.example.com".to_string()][..]) + ); + assert_eq!( + config.bootstrap_relay_urls.as_deref(), + Some(&["wss://bootstrap.example.com".to_string()][..]) + ); + assert!(!config.publish_relay_list); + let profile = config.profile_metadata.expect("profile metadata"); + assert_eq!(profile.name.as_deref(), Some("profile")); + assert_eq!(profile.nip05.as_deref(), Some("bot@example.com")); + } + + #[test] + fn client_config_preserves_discovery_relays() { + let config = build_sdk_client_config_from_fields(ClientConfigParts { + relay_urls: vec!["wss://relay.example.com".to_string()], + server_pubkey: "abc".to_string(), + encryption_mode: contextvm_sdk::EncryptionMode::Optional, + gift_wrap_mode: contextvm_sdk::GiftWrapMode::Optional, + is_stateless: false, + timeout_secs: 30, + discovery_relay_urls: vec!["wss://discovery.example.com".to_string()], + fallback_operational_relay_urls: vec!["wss://fallback.example.com".to_string()], + }); + + assert_eq!( + config.discovery_relay_urls.as_deref(), + Some(&["wss://discovery.example.com".to_string()][..]) + ); + assert_eq!( + config.fallback_operational_relay_urls.as_deref(), + Some(&["wss://fallback.example.com".to_string()][..]) + ); + } + + #[test] + fn ffi_server_config_rejects_counted_null_allowlist_pointer() { + let mut config = minimal_ffi_server_config(); + config.allowed_pubkey_count = 1; + + let err = build_sdk_server_config(&config).expect_err("counted null allowlist must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("allowed_pubkeys")); + } + + #[test] + fn ffi_server_config_rejects_null_allowlist_entry() { + let mut config = minimal_ffi_server_config(); + let mut entries = [ptr::null_mut()]; + config.allowed_pubkeys = entries.as_mut_ptr(); + config.allowed_pubkey_count = entries.len(); + + let err = build_sdk_server_config(&config).expect_err("null allowlist entry must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("allowed_pubkeys[0]")); + } + + #[test] + fn ffi_server_config_rejects_non_utf8_allowlist_entry() { + let mut config = minimal_ffi_server_config(); + let bad = CString::new(vec![0xff]).expect("no interior nul"); + let mut entries = [bad.as_ptr() as *mut c_char]; + config.allowed_pubkeys = entries.as_mut_ptr(); + config.allowed_pubkey_count = entries.len(); + + let err = + build_sdk_server_config(&config).expect_err("non-UTF-8 allowlist entry must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("allowed_pubkeys[0]")); + } + + #[test] + fn ffi_server_config_rejects_invalid_modes() { + let mut config = minimal_ffi_server_config(); + config.encryption_mode = 99; + + let err = build_sdk_server_config(&config).expect_err("invalid encryption mode must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("encryption_mode")); + + let mut config = minimal_ffi_server_config(); + config.gift_wrap_mode = 99; + + let err = build_sdk_server_config(&config).expect_err("invalid gift-wrap mode must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("gift_wrap_mode")); + } + + #[test] + fn ffi_client_config_rejects_missing_pubkey_and_invalid_modes() { + let config = minimal_ffi_client_config(ptr::null_mut()); + + let err = build_sdk_client_config(&config).expect_err("missing server pubkey must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("server_pubkey")); + + let server_pubkey = CString::new("abc").expect("valid c string"); + let mut config = minimal_ffi_client_config(server_pubkey.as_ptr() as *mut c_char); + config.encryption_mode = 99; + + let err = + build_sdk_client_config(&config).expect_err("invalid client encryption mode must fail"); + + assert_eq!(err.code, ErrorCode::Validation); + assert!(err.message.contains("encryption_mode")); + } } diff --git a/contextvm-ffi/src/channel.rs b/contextvm-ffi/src/channel.rs index e05638b..5c4c0b5 100644 --- a/contextvm-ffi/src/channel.rs +++ b/contextvm-ffi/src/channel.rs @@ -1,7 +1,7 @@ //! Channel-based wrapper types that allow FFI consumers to receive messages. use crate::builders::{build_sdk_client_config, build_sdk_server_config}; -use crate::error::{set_error, FfiError}; +use crate::error::{set_error, ErrorCode, FfiError}; use crate::handle::FfiHandle; use crate::kv; use crate::runtime::global_runtime; @@ -51,11 +51,18 @@ pub extern "C" fn cvm_server_ch_new( None => return FfiHandle { id: 0 }, }; - let sdk_config = build_sdk_server_config(&config); + let sdk_config = match build_sdk_server_config(&config) { + Ok(config) => config, + Err(e) => { + set_error(error, e); + return FfiHandle { id: 0 }; + } + }; let result = global_runtime().block_on(async { let mut transport = contextvm_sdk::NostrServerTransport::new(keys, sdk_config).await?; transport.start().await?; + transport.spawn_discoverability_publication(); let receiver = transport .take_message_receiver() .ok_or_else(|| contextvm_sdk::Error::Other("receiver already taken".into()))?; @@ -179,6 +186,134 @@ pub extern "C" fn cvm_server_ch_send_response( } } +/// Send a notification to a specific client through a server channel. +#[no_mangle] +pub extern "C" fn cvm_server_ch_send_notification( + handle: FfiHandle, + client_pubkey: *const c_char, + payload_json: *const c_char, + correlated_event_id: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return false; + } + }; + + let client_pubkey = match c_str_to_string(client_pubkey) { + Some(s) => s, + None => { + set_null_arg_error(error, "client_pubkey"); + return false; + } + }; + let msg = match parse_json_rpc_message(payload_json, error) { + Some(m) => m, + None => return false, + }; + let correlated_event_id = c_str_to_string(correlated_event_id); + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport + .send_notification(&client_pubkey, &msg, correlated_event_id.as_deref()) + .await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Broadcast a notification to all initialized clients. +#[no_mangle] +pub extern "C" fn cvm_server_ch_broadcast_notification( + handle: FfiHandle, + payload_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return false; + } + }; + + let msg = match parse_json_rpc_message(payload_json, error) { + Some(m) => m, + None => return false, + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.broadcast_notification(&msg).await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + +/// Sets extra announcement/discovery tags from a JSON array of tag arrays. +#[no_mangle] +pub extern "C" fn cvm_server_ch_set_announcement_extra_tags( + handle: FfiHandle, + tags_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return false; + } + }; + let tags = match parse_tags_json(tags_json, error) { + Some(tags) => tags, + None => return false, + }; + + global_runtime().block_on(async { + let mut transport = channel.transport.lock().await; + transport.set_announcement_extra_tags(tags); + }); + true +} + +/// Sets pricing tags from a JSON array of tag arrays. +#[no_mangle] +pub extern "C" fn cvm_server_ch_set_announcement_pricing_tags( + handle: FfiHandle, + tags_json: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return false; + } + }; + let tags = match parse_tags_json(tags_json, error) { + Some(tags) => tags, + None => return false, + }; + + global_runtime().block_on(async { + let mut transport = channel.transport.lock().await; + transport.set_announcement_pricing_tags(tags); + }); + true +} + /// Publish server announcement. #[no_mangle] pub extern "C" fn cvm_server_ch_announce(handle: FfiHandle, error: *mut *mut FfiError) -> bool { @@ -209,6 +344,122 @@ pub extern "C" fn cvm_server_ch_announce(handle: FfiHandle, error: *mut *mut Ffi } } +/// Publish server announcement and return the Nostr event ID. +#[no_mangle] +pub extern "C" fn cvm_server_ch_announce_event_id( + handle: FfiHandle, + error: *mut *mut FfiError, +) -> *mut c_char { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return std::ptr::null_mut(); + } + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.announce().await + }) { + Ok(event_id) => string_to_c(event_id.to_hex()), + Err(e) => { + set_error(error, e.into()); + std::ptr::null_mut() + } + } +} + +#[no_mangle] +pub extern "C" fn cvm_server_ch_publish_tools( + handle: FfiHandle, + tools_json: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let tools = match parse_json_value_array(tools_json, "tools_json", error) { + Some(values) => values, + None => return std::ptr::null_mut(), + }; + publish_server_values(handle, tools, ServerPublishListKind::Tools, error) +} + +#[no_mangle] +pub extern "C" fn cvm_server_ch_publish_resources( + handle: FfiHandle, + resources_json: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let resources = match parse_json_value_array(resources_json, "resources_json", error) { + Some(values) => values, + None => return std::ptr::null_mut(), + }; + publish_server_values(handle, resources, ServerPublishListKind::Resources, error) +} + +#[no_mangle] +pub extern "C" fn cvm_server_ch_publish_prompts( + handle: FfiHandle, + prompts_json: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let prompts = match parse_json_value_array(prompts_json, "prompts_json", error) { + Some(values) => values, + None => return std::ptr::null_mut(), + }; + publish_server_values(handle, prompts, ServerPublishListKind::Prompts, error) +} + +#[no_mangle] +pub extern "C" fn cvm_server_ch_publish_resource_templates( + handle: FfiHandle, + templates_json: *const c_char, + error: *mut *mut FfiError, +) -> *mut c_char { + let templates = match parse_json_value_array(templates_json, "templates_json", error) { + Some(values) => values, + None => return std::ptr::null_mut(), + }; + publish_server_values( + handle, + templates, + ServerPublishListKind::ResourceTemplates, + error, + ) +} + +#[no_mangle] +pub extern "C" fn cvm_server_ch_delete_announcements( + handle: FfiHandle, + reason: *const c_char, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return false; + } + }; + let reason = match c_str_to_string(reason) { + Some(s) => s, + None => { + set_null_arg_error(error, "reason"); + return false; + } + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.delete_announcements(&reason).await + }) { + Ok(()) => true, + Err(e) => { + set_error(error, e.into()); + false + } + } +} + /// Close a server channel. #[no_mangle] pub extern "C" fn cvm_server_ch_close(handle: FfiHandle, error: *mut *mut FfiError) -> bool { @@ -256,15 +507,9 @@ pub extern "C" fn cvm_client_ch_new( }; let sdk_config = match build_sdk_client_config(&config) { - Some(c) => c, - None => { - set_error( - error, - FfiError { - code: crate::error::ErrorCode::Validation, - message: "server_pubkey is required".into(), - }, - ); + Ok(c) => c, + Err(e) => { + set_error(error, e); return FfiHandle { id: 0 }; } }; @@ -375,6 +620,92 @@ pub extern "C" fn cvm_client_ch_recv( } } +/// Return a snapshot of server capabilities learned from discovery tags. +#[no_mangle] +pub extern "C" fn cvm_client_ch_discovered_server_capabilities( + handle: FfiHandle, + out_caps: *mut FfiPeerCapabilities, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "client channel"); + return false; + } + }; + if out_caps.is_null() { + set_null_arg_error(error, "out_caps"); + return false; + } + + let caps = global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.discovered_server_capabilities() + }); + unsafe { + *out_caps = peer_capabilities_to_ffi(caps); + } + true +} + +/// Return whether the client has learned ephemeral gift-wrap support. +#[no_mangle] +pub extern "C" fn cvm_client_ch_server_supports_ephemeral_encryption( + handle: FfiHandle, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "client channel"); + return false; + } + }; + + global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.server_supports_ephemeral_encryption() + }) +} + +/// Return the first server event carrying discovery tags as JSON, or NULL if none. +#[no_mangle] +pub extern "C" fn cvm_client_ch_server_initialize_event_json( + handle: FfiHandle, + error: *mut *mut FfiError, +) -> *mut c_char { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "client channel"); + return std::ptr::null_mut(); + } + }; + + let event = global_runtime().block_on(async { + let transport = channel.transport.lock().await; + transport.get_server_initialize_event() + }); + + match event { + Some(event) => match serde_json::to_string(&event) { + Ok(json) => string_to_c(json), + Err(e) => { + set_error( + error, + FfiError { + code: ErrorCode::Serialization, + message: e.to_string(), + }, + ); + std::ptr::null_mut() + } + }, + None => std::ptr::null_mut(), + } +} + /// Close a client channel. #[no_mangle] pub extern "C" fn cvm_client_ch_close(handle: FfiHandle, error: *mut *mut FfiError) -> bool { @@ -421,7 +752,13 @@ pub extern "C" fn cvm_gateway_ch_new( None => return FfiHandle { id: 0 }, }; - let sdk_config = build_sdk_server_config(&config); + let sdk_config = match build_sdk_server_config(&config) { + Ok(config) => config, + Err(e) => { + set_error(error, e); + return FfiHandle { id: 0 }; + } + }; let gw_config = contextvm_sdk::gateway::GatewayConfig::new(sdk_config); let result = global_runtime().block_on(async { @@ -577,6 +914,49 @@ pub extern "C" fn cvm_gateway_ch_announce(handle: FfiHandle, error: *mut *mut Ff } } +/// Publish gateway server announcement and return the Nostr event ID. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_announce_event_id( + handle: FfiHandle, + error: *mut *mut FfiError, +) -> *mut c_char { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "gateway channel"); + return std::ptr::null_mut(); + } + }; + + match global_runtime().block_on(async { + let gateway = channel.gateway.lock().await; + gateway.announce().await + }) { + Ok(event_id) => string_to_c(event_id.to_hex()), + Err(e) => { + set_error(error, e.into()); + std::ptr::null_mut() + } + } +} + +/// Check if a gateway channel is active. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_is_active(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "gateway channel"); + return false; + } + }; + + global_runtime().block_on(async { + let gateway = channel.gateway.lock().await; + gateway.is_active() + }) +} + /// Stop a gateway channel. #[no_mangle] pub extern "C" fn cvm_gateway_ch_stop(handle: FfiHandle, error: *mut *mut FfiError) -> bool { @@ -624,15 +1004,9 @@ pub extern "C" fn cvm_proxy_ch_new( }; let sdk_config = match build_sdk_client_config(&config) { - Some(c) => c, - None => { - set_error( - error, - FfiError { - code: crate::error::ErrorCode::Validation, - message: "server_pubkey is required".into(), - }, - ); + Ok(c) => c, + Err(e) => { + set_error(error, e); return FfiHandle { id: 0 }; } }; @@ -799,6 +1173,23 @@ pub extern "C" fn cvm_proxy_ch_recv_timeout( } } +/// Check if a proxy channel is active. +#[no_mangle] +pub extern "C" fn cvm_proxy_ch_is_active(handle: FfiHandle, error: *mut *mut FfiError) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "proxy channel"); + return false; + } + }; + + global_runtime().block_on(async { + let proxy = channel.proxy.lock().await; + proxy.is_active() + }) +} + /// Stop a proxy channel. #[no_mangle] pub extern "C" fn cvm_proxy_ch_stop(handle: FfiHandle, error: *mut *mut FfiError) -> bool { @@ -881,3 +1272,130 @@ fn parse_json_rpc_message( } } } + +fn parse_json_value_array( + payload_json: *const c_char, + name: &str, + error: *mut *mut FfiError, +) -> Option> { + let json_str = match c_str_to_string(payload_json) { + Some(s) => s, + None => { + set_null_arg_error(error, name); + return None; + } + }; + + match serde_json::from_str::>(&json_str) { + Ok(values) => Some(values), + Err(e) => { + set_error( + error, + FfiError { + code: ErrorCode::Serialization, + message: e.to_string(), + }, + ); + None + } + } +} + +fn parse_tags_json( + tags_json: *const c_char, + error: *mut *mut FfiError, +) -> Option> { + let json_str = match c_str_to_string(tags_json) { + Some(s) => s, + None => { + set_null_arg_error(error, "tags_json"); + return None; + } + }; + + let parts = match serde_json::from_str::>>(&json_str) { + Ok(parts) => parts, + Err(e) => { + set_error( + error, + FfiError { + code: ErrorCode::Serialization, + message: e.to_string(), + }, + ); + return None; + } + }; + + parts + .into_iter() + .map(|tag| { + nostr_sdk::prelude::Tag::parse(tag).map_err(|e| FfiError { + code: ErrorCode::Validation, + message: e.to_string(), + }) + }) + .collect::, _>>() + .map_err(|e| set_error(error, e)) + .ok() +} + +enum ServerPublishListKind { + Tools, + Resources, + Prompts, + ResourceTemplates, +} + +fn publish_server_values( + handle: FfiHandle, + values: Vec, + kind: ServerPublishListKind, + error: *mut *mut FfiError, +) -> *mut c_char { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_invalid_handle_error(error, "server channel"); + return std::ptr::null_mut(); + } + }; + + match global_runtime().block_on(async { + let transport = channel.transport.lock().await; + match kind { + ServerPublishListKind::Tools => transport.publish_tools(values).await, + ServerPublishListKind::Resources => transport.publish_resources(values).await, + ServerPublishListKind::Prompts => transport.publish_prompts(values).await, + ServerPublishListKind::ResourceTemplates => { + transport.publish_resource_templates(values).await + } + } + }) { + Ok(event_id) => string_to_c(event_id.to_hex()), + Err(e) => { + set_error(error, e.into()); + std::ptr::null_mut() + } + } +} + +fn set_invalid_handle_error(error: *mut *mut FfiError, handle_type: &str) { + set_error( + error, + FfiError { + code: ErrorCode::Other, + message: format!("invalid {handle_type} handle"), + }, + ); +} + +fn set_null_arg_error(error: *mut *mut FfiError, name: &str) { + set_error( + error, + FfiError { + code: ErrorCode::Validation, + message: format!("null {name}"), + }, + ); +} diff --git a/contextvm-ffi/src/types.rs b/contextvm-ffi/src/types.rs index a7b4209..e70dd52 100644 --- a/contextvm-ffi/src/types.rs +++ b/contextvm-ffi/src/types.rs @@ -15,53 +15,24 @@ use std::ptr; // ─── FFI-safe struct mirrors ─────────────────────────────────────────── -/// Encryption mode. -#[repr(C)] -#[derive(Debug, Clone, Copy, PartialEq, Eq)] -pub enum EncryptionMode { - Optional = 0, - Required = 1, - Disabled = 2, -} - -impl From for contextvm_sdk::EncryptionMode { - fn from(m: EncryptionMode) -> Self { - match m { - EncryptionMode::Optional => contextvm_sdk::EncryptionMode::Optional, - EncryptionMode::Required => contextvm_sdk::EncryptionMode::Required, - EncryptionMode::Disabled => contextvm_sdk::EncryptionMode::Disabled, - } - } -} +/// Raw integer mode value supplied by C callers. +pub type FfiMode = i32; -/// Gift-wrap mode (CEP-19). -#[repr(C)] -#[derive(Debug, Clone, Copy, PartialEq, Eq)] -pub enum GiftWrapMode { - Optional = 0, - Ephemeral = 1, - Persistent = 2, -} +pub const ENCRYPTION_MODE_OPTIONAL: FfiMode = 0; +pub const ENCRYPTION_MODE_REQUIRED: FfiMode = 1; +pub const ENCRYPTION_MODE_DISABLED: FfiMode = 2; -impl From for contextvm_sdk::GiftWrapMode { - fn from(m: GiftWrapMode) -> Self { - match m { - GiftWrapMode::Optional => contextvm_sdk::GiftWrapMode::Optional, - GiftWrapMode::Ephemeral => contextvm_sdk::GiftWrapMode::Ephemeral, - GiftWrapMode::Persistent => contextvm_sdk::GiftWrapMode::Persistent, - } - } -} +pub const GIFT_WRAP_MODE_OPTIONAL: FfiMode = 0; +pub const GIFT_WRAP_MODE_EPHEMERAL: FfiMode = 1; +pub const GIFT_WRAP_MODE_PERSISTENT: FfiMode = 2; /// JSON-RPC message type discriminator. -#[repr(C)] -#[derive(Debug, Clone, Copy, PartialEq, Eq)] -pub enum JsonRpcType { - Request = 0, - Response = 1, - ErrorResponse = 2, - Notification = 3, -} +pub type JsonRpcType = i32; + +pub const JSON_RPC_TYPE_REQUEST: JsonRpcType = 0; +pub const JSON_RPC_TYPE_RESPONSE: JsonRpcType = 1; +pub const JSON_RPC_TYPE_ERROR_RESPONSE: JsonRpcType = 2; +pub const JSON_RPC_TYPE_NOTIFICATION: JsonRpcType = 3; /// An FFI-safe JSON-RPC message. #[repr(C)] @@ -122,14 +93,31 @@ pub struct FfiProviderProfile { pub nip05: *mut c_char, } +/// A capability exclusion pattern that bypasses pubkey whitelisting. +#[repr(C)] +#[derive(Debug)] +pub struct FfiCapabilityExclusion { + pub method: *mut c_char, + pub name: *mut c_char, +} + +/// Learned peer capability flags. +#[repr(C)] +#[derive(Debug, Clone, Copy)] +pub struct FfiPeerCapabilities { + pub supports_encryption: bool, + pub supports_ephemeral_encryption: bool, + pub supports_oversized_transfer: bool, +} + /// Server transport config for FFI. #[repr(C)] #[derive(Debug)] pub struct FfiServerConfig { pub relay_urls: *mut *mut c_char, pub relay_url_count: usize, - pub encryption_mode: EncryptionMode, - pub gift_wrap_mode: GiftWrapMode, + pub encryption_mode: FfiMode, + pub gift_wrap_mode: FfiMode, pub is_announced_server: bool, pub server_name: *mut c_char, pub server_version: *mut c_char, @@ -140,6 +128,16 @@ pub struct FfiServerConfig { pub allowed_pubkey_count: usize, pub session_timeout_secs: u64, pub cleanup_interval_secs: u64, + pub excluded_capabilities: *mut FfiCapabilityExclusion, + pub excluded_capability_count: usize, + pub max_sessions: usize, + pub request_timeout_secs: u64, + pub relay_list_urls: *mut *mut c_char, + pub relay_list_url_count: usize, + pub bootstrap_relay_urls: *mut *mut c_char, + pub bootstrap_relay_url_count: usize, + pub publish_relay_list: bool, + pub profile_metadata_json: *mut c_char, } /// Client transport config for FFI. @@ -149,10 +147,14 @@ pub struct FfiClientConfig { pub relay_urls: *mut *mut c_char, pub relay_url_count: usize, pub server_pubkey: *mut c_char, - pub encryption_mode: EncryptionMode, - pub gift_wrap_mode: GiftWrapMode, + pub encryption_mode: FfiMode, + pub gift_wrap_mode: FfiMode, pub is_stateless: bool, pub timeout_secs: u64, + pub discovery_relay_urls: *mut *mut c_char, + pub discovery_relay_url_count: usize, + pub fallback_operational_relay_urls: *mut *mut c_char, + pub fallback_operational_relay_url_count: usize, } // ─── Internal conversion helpers ─────────────────────────────────────── @@ -164,6 +166,36 @@ pub fn c_str_to_string(ptr: *const c_char) -> Option { unsafe { CStr::from_ptr(ptr).to_str().ok().map(String::from) } } +pub fn c_str_to_string_checked(ptr: *const c_char, name: &str) -> Result { + if ptr.is_null() { + return Err(FfiError { + code: ErrorCode::Validation, + message: format!("null {name}"), + }); + } + + unsafe { + CStr::from_ptr(ptr) + .to_str() + .map(String::from) + .map_err(|e| FfiError { + code: ErrorCode::Validation, + message: format!("{name} is not valid UTF-8: {e}"), + }) + } +} + +pub fn optional_c_str_to_string_checked( + ptr: *const c_char, + name: &str, +) -> Result, FfiError> { + if ptr.is_null() { + Ok(None) + } else { + c_str_to_string_checked(ptr, name).map(Some) + } +} + pub fn string_to_c(s: String) -> *mut c_char { CString::new(s).unwrap_or_default().into_raw() } @@ -182,20 +214,102 @@ pub fn c_str_array_to_vec(ptr: *mut *mut c_char, count: usize) -> Vec { } } +pub fn c_str_array_to_vec_checked( + ptr: *mut *mut c_char, + count: usize, + name: &str, +) -> Result, FfiError> { + if count == 0 { + return Ok(Vec::new()); + } + if ptr.is_null() { + return Err(FfiError { + code: ErrorCode::Validation, + message: format!("{name} has count {count} but null pointer"), + }); + } + + unsafe { + std::slice::from_raw_parts(ptr, count) + .iter() + .enumerate() + .map(|(index, &p)| { + if p.is_null() { + return Err(FfiError { + code: ErrorCode::Validation, + message: format!("{name}[{index}] is null"), + }); + } + + CStr::from_ptr(p) + .to_str() + .map(String::from) + .map_err(|e| FfiError { + code: ErrorCode::Validation, + message: format!("{name}[{index}] is not valid UTF-8: {e}"), + }) + }) + .collect() + } +} + +pub fn ffi_encryption_mode_to_sdk( + mode: FfiMode, +) -> Result { + match mode { + ENCRYPTION_MODE_OPTIONAL => Ok(contextvm_sdk::EncryptionMode::Optional), + ENCRYPTION_MODE_REQUIRED => Ok(contextvm_sdk::EncryptionMode::Required), + ENCRYPTION_MODE_DISABLED => Ok(contextvm_sdk::EncryptionMode::Disabled), + _ => Err(FfiError { + code: ErrorCode::Validation, + message: format!("invalid encryption_mode {mode}"), + }), + } +} + +pub fn ffi_gift_wrap_mode_to_sdk(mode: FfiMode) -> Result { + match mode { + GIFT_WRAP_MODE_OPTIONAL => Ok(contextvm_sdk::GiftWrapMode::Optional), + GIFT_WRAP_MODE_EPHEMERAL => Ok(contextvm_sdk::GiftWrapMode::Ephemeral), + GIFT_WRAP_MODE_PERSISTENT => Ok(contextvm_sdk::GiftWrapMode::Persistent), + _ => Err(FfiError { + code: ErrorCode::Validation, + message: format!("invalid gift_wrap_mode {mode}"), + }), + } +} + +pub fn json_rpc_id_to_string(id: &serde_json::Value) -> String { + match id { + serde_json::Value::String(s) => s.clone(), + other => other.to_string(), + } +} + +pub fn peer_capabilities_to_ffi( + caps: contextvm_sdk::transport::discovery_tags::PeerCapabilities, +) -> FfiPeerCapabilities { + FfiPeerCapabilities { + supports_encryption: caps.supports_encryption, + supports_ephemeral_encryption: caps.supports_ephemeral_encryption, + supports_oversized_transfer: caps.supports_oversized_transfer, + } +} + /// Convert an SDK `JsonRpcMessage` to the FFI representation. pub fn message_to_ffi(msg: &contextvm_sdk::JsonRpcMessage) -> FfiJsonRpcMessage { let json_str = serde_json::to_string(msg).unwrap_or_default(); let msg_type = match msg { - contextvm_sdk::JsonRpcMessage::Request(_) => JsonRpcType::Request, - contextvm_sdk::JsonRpcMessage::Response(_) => JsonRpcType::Response, - contextvm_sdk::JsonRpcMessage::ErrorResponse(_) => JsonRpcType::ErrorResponse, - contextvm_sdk::JsonRpcMessage::Notification(_) => JsonRpcType::Notification, + contextvm_sdk::JsonRpcMessage::Request(_) => JSON_RPC_TYPE_REQUEST, + contextvm_sdk::JsonRpcMessage::Response(_) => JSON_RPC_TYPE_RESPONSE, + contextvm_sdk::JsonRpcMessage::ErrorResponse(_) => JSON_RPC_TYPE_ERROR_RESPONSE, + contextvm_sdk::JsonRpcMessage::Notification(_) => JSON_RPC_TYPE_NOTIFICATION, }; FfiJsonRpcMessage { msg_type, payload_json: string_to_c(json_str), method: opt_string_to_c(msg.method().map(String::from)), - id: opt_string_to_c(msg.id().map(|v| v.to_string())), + id: opt_string_to_c(msg.id().map(json_rpc_id_to_string)), } } @@ -916,3 +1030,39 @@ fn profiles_to_ffi_array( std::mem::forget(ffi_profiles); ptr } + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn message_to_ffi_string_id_is_unquoted() { + let msg = contextvm_sdk::JsonRpcMessage::Request(contextvm_sdk::JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::Value::String("request-1".to_string()), + method: "tools/list".to_string(), + params: None, + }); + + let ffi = message_to_ffi(&msg); + let id = unsafe { CStr::from_ptr(ffi.id).to_str().unwrap().to_string() }; + cvm_message_free(ffi); + + assert_eq!(id, "request-1"); + } + + #[test] + fn message_to_ffi_non_string_id_remains_json_encoded() { + let msg = contextvm_sdk::JsonRpcMessage::Response(contextvm_sdk::JsonRpcResponse { + jsonrpc: "2.0".to_string(), + id: serde_json::json!(42), + result: serde_json::json!({}), + }); + + let ffi = message_to_ffi(&msg); + let id = unsafe { CStr::from_ptr(ffi.id).to_str().unwrap().to_string() }; + cvm_message_free(ffi); + + assert_eq!(id, "42"); + } +} diff --git a/contextvm-ffi/src/uniffi_types.rs b/contextvm-ffi/src/uniffi_types.rs index 3a17f58..4b81594 100644 --- a/contextvm-ffi/src/uniffi_types.rs +++ b/contextvm-ffi/src/uniffi_types.rs @@ -5,10 +5,12 @@ //! Kotlin consumers. use crate::builders::{ - build_sdk_client_config_from_fields, build_sdk_server_config_from_fields, ServerConfigParts, + build_sdk_client_config_from_fields, build_sdk_server_config_from_fields, + CapabilityExclusionParts, ClientConfigParts, ServerConfigParts, }; use crate::error::FfiError; use crate::runtime::global_runtime; +use crate::types::json_rpc_id_to_string; use std::sync::Arc; use std::time::Duration; @@ -81,6 +83,21 @@ pub struct ProviderProfile { pub nip05: Option, } +/// A capability exclusion pattern that bypasses pubkey whitelisting. +#[derive(Debug, Clone, uniffi::Record)] +pub struct CapabilityExclusion { + pub method: String, + pub name: Option, +} + +/// Learned peer capability flags. +#[derive(Debug, Clone, Copy, uniffi::Record)] +pub struct PeerCapabilities { + pub supports_encryption: bool, + pub supports_ephemeral_encryption: bool, + pub supports_oversized_transfer: bool, +} + /// A discovered MCP tool and provider metadata used by foreign clients. #[derive(Debug, Clone, uniffi::Record)] pub struct DiscoveredTool { @@ -110,6 +127,13 @@ pub struct ServerConfig { pub allowed_pubkeys: Vec, pub session_timeout_secs: u64, pub cleanup_interval_secs: u64, + pub excluded_capabilities: Vec, + pub max_sessions: u64, + pub request_timeout_secs: u64, + pub relay_list_urls: Vec, + pub bootstrap_relay_urls: Vec, + pub publish_relay_list: bool, + pub profile_metadata_json: Option, } impl Default for ServerConfig { @@ -127,6 +151,13 @@ impl Default for ServerConfig { allowed_pubkeys: vec![], session_timeout_secs: 300, cleanup_interval_secs: 60, + excluded_capabilities: vec![], + max_sessions: 1000, + request_timeout_secs: 60, + relay_list_urls: vec![], + bootstrap_relay_urls: vec![], + publish_relay_list: true, + profile_metadata_json: None, } } } @@ -140,6 +171,8 @@ pub struct ClientConfig { pub gift_wrap_mode: GiftWrapMode, pub is_stateless: bool, pub timeout_secs: u64, + pub discovery_relay_urls: Vec, + pub fallback_operational_relay_urls: Vec, } impl Default for ClientConfig { @@ -151,6 +184,8 @@ impl Default for ClientConfig { gift_wrap_mode: GiftWrapMode::Optional, is_stateless: false, timeout_secs: 30, + discovery_relay_urls: vec![], + fallback_operational_relay_urls: vec![], } } } @@ -185,7 +220,7 @@ fn message_to_uniffi(msg: &contextvm_sdk::JsonRpcMessage) -> JsonRpcMessage { msg_type, payload_json: serde_json::to_string(msg).unwrap_or_default(), method: msg.method().map(String::from).unwrap_or_default(), - id: msg.id().map(|v| v.to_string()).unwrap_or_default(), + id: msg.id().map(json_rpc_id_to_string).unwrap_or_default(), } } @@ -229,6 +264,37 @@ fn profile_to_uniffi(profile: crate::discovery::ProviderProfileRecord) -> Provid } } +fn capabilities_to_uniffi(caps: contextvm_sdk::PeerCapabilities) -> PeerCapabilities { + PeerCapabilities { + supports_encryption: caps.supports_encryption, + supports_ephemeral_encryption: caps.supports_ephemeral_encryption, + supports_oversized_transfer: caps.supports_oversized_transfer, + } +} + +fn parse_json_value_array(json: &str, name: &str) -> Result, FfiError> { + serde_json::from_str(json).map_err(|e| FfiError { + code: crate::error::ErrorCode::Serialization, + message: format!("invalid {name}: {e}"), + }) +} + +fn parse_tags_json(json: &str) -> Result, FfiError> { + let parts: Vec> = serde_json::from_str(json).map_err(|e| FfiError { + code: crate::error::ErrorCode::Serialization, + message: format!("invalid tags_json: {e}"), + })?; + parts + .into_iter() + .map(|tag| { + nostr_sdk::prelude::Tag::parse(tag).map_err(|e| FfiError { + code: crate::error::ErrorCode::Validation, + message: e.to_string(), + }) + }) + .collect() +} + // ─── High-level UniFFI objects ───────────────────────────────────────── /// A Nostr keypair. @@ -328,7 +394,21 @@ impl Server { allowed_pubkeys: config.allowed_pubkeys.clone(), session_timeout_secs: config.session_timeout_secs, cleanup_interval_secs: config.cleanup_interval_secs, - }); + excluded_capabilities: config + .excluded_capabilities + .iter() + .map(|cap| CapabilityExclusionParts { + method: cap.method.clone(), + name: cap.name.clone(), + }) + .collect(), + max_sessions: config.max_sessions as usize, + request_timeout_secs: config.request_timeout_secs, + relay_list_urls: config.relay_list_urls.clone(), + bootstrap_relay_urls: config.bootstrap_relay_urls.clone(), + publish_relay_list: config.publish_relay_list, + profile_metadata_json: config.profile_metadata_json.clone(), + })?; global_runtime() .block_on(async { @@ -336,6 +416,7 @@ impl Server { contextvm_sdk::NostrServerTransport::new(keys.inner.clone(), sdk_config) .await?; transport.start().await?; + transport.spawn_discoverability_publication(); let receiver = transport .take_message_receiver() .ok_or_else(|| contextvm_sdk::Error::Other("receiver already taken".into()))?; @@ -374,6 +455,59 @@ impl Server { .map_err(FfiError::from) } + /// Send a notification to a specific client. + pub fn send_notification( + &self, + client_pubkey: &str, + payload_json: &str, + correlated_event_id: Option, + ) -> Result<(), FfiError> { + let message = parse_json_rpc(payload_json)?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard + .send_notification(client_pubkey, &message, correlated_event_id.as_deref()) + .await + }) + .map_err(FfiError::from) + } + + /// Broadcast a notification to all initialized clients. + pub fn broadcast_notification(&self, payload_json: &str) -> Result<(), FfiError> { + let message = parse_json_rpc(payload_json)?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.broadcast_notification(&message).await + }) + .map_err(FfiError::from) + } + + /// Sets extra announcement/discovery tags from a JSON array of tag arrays. + pub fn set_announcement_extra_tags(&self, tags_json: &str) -> Result<(), FfiError> { + let tags = parse_tags_json(tags_json)?; + let transport = self.transport.clone(); + global_runtime().block_on(async { + let mut guard = transport.lock().await; + guard.set_announcement_extra_tags(tags); + }); + Ok(()) + } + + /// Sets pricing tags from a JSON array of tag arrays. + pub fn set_announcement_pricing_tags(&self, tags_json: &str) -> Result<(), FfiError> { + let tags = parse_tags_json(tags_json)?; + let transport = self.transport.clone(); + global_runtime().block_on(async { + let mut guard = transport.lock().await; + guard.set_announcement_pricing_tags(tags); + }); + Ok(()) + } + /// Publish server announcement. pub fn announce(&self) -> Result<(), FfiError> { let transport = self.transport.clone(); @@ -386,6 +520,81 @@ impl Server { .map_err(FfiError::from) } + /// Publish server announcement and return the Nostr event ID. + pub fn announce_event_id(&self) -> Result { + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.announce().await + }) + .map(|event_id| event_id.to_hex()) + .map_err(FfiError::from) + } + + /// Publish tools list and return the Nostr event ID. + pub fn publish_tools(&self, tools_json: &str) -> Result { + let tools = parse_json_value_array(tools_json, "tools_json")?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.publish_tools(tools).await + }) + .map(|event_id| event_id.to_hex()) + .map_err(FfiError::from) + } + + /// Publish resources list and return the Nostr event ID. + pub fn publish_resources(&self, resources_json: &str) -> Result { + let resources = parse_json_value_array(resources_json, "resources_json")?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.publish_resources(resources).await + }) + .map(|event_id| event_id.to_hex()) + .map_err(FfiError::from) + } + + /// Publish prompts list and return the Nostr event ID. + pub fn publish_prompts(&self, prompts_json: &str) -> Result { + let prompts = parse_json_value_array(prompts_json, "prompts_json")?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.publish_prompts(prompts).await + }) + .map(|event_id| event_id.to_hex()) + .map_err(FfiError::from) + } + + /// Publish resource templates list and return the Nostr event ID. + pub fn publish_resource_templates(&self, templates_json: &str) -> Result { + let templates = parse_json_value_array(templates_json, "templates_json")?; + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.publish_resource_templates(templates).await + }) + .map(|event_id| event_id.to_hex()) + .map_err(FfiError::from) + } + + /// Delete previously published server announcements. + pub fn delete_announcements(&self, reason: &str) -> Result<(), FfiError> { + let transport = self.transport.clone(); + global_runtime() + .block_on(async { + let guard = transport.lock().await; + guard.delete_announcements(reason).await + }) + .map_err(FfiError::from) + } + /// Close the server transport. pub fn close(&self) -> Result<(), FfiError> { let transport = self.transport.clone(); @@ -412,14 +621,16 @@ impl Client { /// Create and start a client transport. #[uniffi::constructor] pub fn new(keys: &Keys, config: &ClientConfig) -> Result { - let sdk_config = build_sdk_client_config_from_fields( - config.relay_urls.clone(), - config.server_pubkey.clone(), - sdk_encryption_mode(config.encryption_mode), - sdk_gift_wrap_mode(config.gift_wrap_mode), - config.is_stateless, - config.timeout_secs, - ); + let sdk_config = build_sdk_client_config_from_fields(ClientConfigParts { + relay_urls: config.relay_urls.clone(), + server_pubkey: config.server_pubkey.clone(), + encryption_mode: sdk_encryption_mode(config.encryption_mode), + gift_wrap_mode: sdk_gift_wrap_mode(config.gift_wrap_mode), + is_stateless: config.is_stateless, + timeout_secs: config.timeout_secs, + discovery_relay_urls: config.discovery_relay_urls.clone(), + fallback_operational_relay_urls: config.fallback_operational_relay_urls.clone(), + }); global_runtime() .block_on(async { @@ -465,6 +676,42 @@ impl Client { }) } + /// Return a snapshot of server capabilities learned from discovery tags. + pub fn discovered_server_capabilities(&self) -> PeerCapabilities { + let transport = self.transport.clone(); + let caps = global_runtime().block_on(async { + let guard = transport.lock().await; + guard.discovered_server_capabilities() + }); + capabilities_to_uniffi(caps) + } + + /// Return whether the client has learned ephemeral gift-wrap support. + pub fn server_supports_ephemeral_encryption(&self) -> bool { + let transport = self.transport.clone(); + global_runtime().block_on(async { + let guard = transport.lock().await; + guard.server_supports_ephemeral_encryption() + }) + } + + /// Return the first server event carrying discovery tags as JSON, if present. + pub fn server_initialize_event_json(&self) -> Result, FfiError> { + let transport = self.transport.clone(); + let event = global_runtime().block_on(async { + let guard = transport.lock().await; + guard.get_server_initialize_event() + }); + event + .map(|event| { + serde_json::to_string(&event).map_err(|e| FfiError { + code: crate::error::ErrorCode::Serialization, + message: e.to_string(), + }) + }) + .transpose() + } + /// Close the client transport. pub fn close(&self) -> Result<(), FfiError> { let transport = self.transport.clone(); @@ -477,6 +724,138 @@ impl Client { } } +/// A gateway that bridges a local MCP server to Nostr. +#[derive(uniffi::Object)] +pub struct Gateway { + gateway: Arc>, + receiver: Arc< + tokio::sync::Mutex>, + >, +} + +#[uniffi::export] +impl Gateway { + /// Create and start a gateway transport. + #[uniffi::constructor] + pub fn new(keys: &Keys, config: &ServerConfig) -> Result { + let sdk_config = build_sdk_server_config_from_fields(ServerConfigParts { + relay_urls: config.relay_urls.clone(), + encryption_mode: sdk_encryption_mode(config.encryption_mode), + gift_wrap_mode: sdk_gift_wrap_mode(config.gift_wrap_mode), + server_name: config.server_name.clone(), + server_version: config.server_version.clone(), + server_picture: config.server_picture.clone(), + server_about: config.server_about.clone(), + server_website: config.server_website.clone(), + is_announced_server: config.is_announced_server, + allowed_pubkeys: config.allowed_pubkeys.clone(), + session_timeout_secs: config.session_timeout_secs, + cleanup_interval_secs: config.cleanup_interval_secs, + excluded_capabilities: config + .excluded_capabilities + .iter() + .map(|cap| CapabilityExclusionParts { + method: cap.method.clone(), + name: cap.name.clone(), + }) + .collect(), + max_sessions: config.max_sessions as usize, + request_timeout_secs: config.request_timeout_secs, + relay_list_urls: config.relay_list_urls.clone(), + bootstrap_relay_urls: config.bootstrap_relay_urls.clone(), + publish_relay_list: config.publish_relay_list, + profile_metadata_json: config.profile_metadata_json.clone(), + })?; + let gateway_config = contextvm_sdk::gateway::GatewayConfig::new(sdk_config); + + global_runtime() + .block_on(async { + let mut gateway = contextvm_sdk::gateway::NostrMCPGateway::new( + keys.inner.clone(), + gateway_config, + ) + .await?; + let receiver = gateway.start().await?; + Ok::<_, contextvm_sdk::Error>(Self { + gateway: Arc::new(tokio::sync::Mutex::new(gateway)), + receiver: Arc::new(tokio::sync::Mutex::new(receiver)), + }) + }) + .map_err(FfiError::from) + } + + /// Receive the next incoming request. + pub fn recv(&self) -> Result { + let rx = self.receiver.clone(); + global_runtime() + .block_on(async { + let mut guard = rx.lock().await; + guard.recv().await + }) + .map(|req| incoming_to_uniffi(&req)) + .ok_or_else(|| FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }) + } + + /// Send a response for a given event ID. + pub fn send_response(&self, event_id: &str, payload_json: &str) -> Result<(), FfiError> { + let message = parse_json_rpc(payload_json)?; + let gateway = self.gateway.clone(); + global_runtime() + .block_on(async { + let guard = gateway.lock().await; + guard.send_response(event_id, message).await + }) + .map_err(FfiError::from) + } + + /// Publish server announcement. + pub fn announce(&self) -> Result<(), FfiError> { + let gateway = self.gateway.clone(); + global_runtime() + .block_on(async { + let guard = gateway.lock().await; + guard.announce().await + }) + .map(|_| ()) + .map_err(FfiError::from) + } + + /// Publish server announcement and return the Nostr event ID. + pub fn announce_event_id(&self) -> Result { + let gateway = self.gateway.clone(); + global_runtime() + .block_on(async { + let guard = gateway.lock().await; + guard.announce().await + }) + .map(|event_id| event_id.to_hex()) + .map_err(FfiError::from) + } + + /// Check if the gateway is active. + pub fn is_active(&self) -> bool { + let gateway = self.gateway.clone(); + global_runtime().block_on(async { + let guard = gateway.lock().await; + guard.is_active() + }) + } + + /// Stop the gateway transport. + pub fn stop(&self) -> Result<(), FfiError> { + let gateway = self.gateway.clone(); + global_runtime() + .block_on(async { + let mut guard = gateway.lock().await; + guard.stop().await + }) + .map_err(FfiError::from) + } +} + /// A proxy that connects a local MCP client to a remote Nostr MCP server. #[derive(uniffi::Object)] pub struct Proxy { @@ -491,14 +870,16 @@ impl Proxy { /// Create and start a proxy transport. #[uniffi::constructor] pub fn new(keys: &Keys, config: &ClientConfig) -> Result { - let sdk_config = build_sdk_client_config_from_fields( - config.relay_urls.clone(), - config.server_pubkey.clone(), - sdk_encryption_mode(config.encryption_mode), - sdk_gift_wrap_mode(config.gift_wrap_mode), - config.is_stateless, - config.timeout_secs, - ); + let sdk_config = build_sdk_client_config_from_fields(ClientConfigParts { + relay_urls: config.relay_urls.clone(), + server_pubkey: config.server_pubkey.clone(), + encryption_mode: sdk_encryption_mode(config.encryption_mode), + gift_wrap_mode: sdk_gift_wrap_mode(config.gift_wrap_mode), + is_stateless: config.is_stateless, + timeout_secs: config.timeout_secs, + discovery_relay_urls: config.discovery_relay_urls.clone(), + fallback_operational_relay_urls: config.fallback_operational_relay_urls.clone(), + }); let proxy_config = contextvm_sdk::proxy::ProxyConfig::new(sdk_config); global_runtime() @@ -561,6 +942,15 @@ impl Proxy { } } + /// Check if the proxy is active. + pub fn is_active(&self) -> bool { + let proxy = self.proxy.clone(); + global_runtime().block_on(async { + let guard = proxy.lock().await; + guard.is_active() + }) + } + /// Stop the proxy transport. pub fn stop(&self) -> Result<(), FfiError> { let proxy = self.proxy.clone(); diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index 789545a..3ca6467 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -55,6 +55,7 @@ impl NostrMCPGateway { } self.transport.start().await?; + self.transport.spawn_discoverability_publication(); self.is_running = true; self.transport diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 7455869..03bb229 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -985,7 +985,15 @@ impl NostrServerTransport { .spawn_publish_public_announcements(self.cancellation_token.child_token()); self.task_handles.push(handle); } - // Unconditional: publish profile metadata and relay list (guards inside methods) + self.spawn_discoverability_publication(); + } + + /// Spawn profile metadata and relay-list publication for direct transport users. + /// + /// This publishes kind 0 and kind 10002 discoverability events when configured. + /// It intentionally does not spawn CEP-6 capability announcement tasks because + /// those inject synthetic MCP requests that require an rmcp worker. + pub fn spawn_discoverability_publication(&mut self) { let handle = self.announcement_manager.spawn_publish_discoverability(); self.task_handles.push(handle); } @@ -1822,6 +1830,7 @@ impl NostrServerTransport { #[cfg(test)] mod tests { use super::*; + use crate::relay::mock::MockRelayPool; use std::thread; // ── Session management ────────────────────────────────────── @@ -2061,6 +2070,42 @@ mod tests { assert!(config.profile_metadata.is_none()); } + #[tokio::test] + async fn spawn_discoverability_publication_publishes_kind_0_and_10002_only() { + let pool = Arc::new(MockRelayPool::new()); + let relay_pool: Arc = pool.clone(); + let config = NostrServerTransportConfig::default() + .with_relay_urls(vec!["wss://relay.example.com".to_string()]) + .with_profile_metadata(ProfileMetadata::default().with_name("ffi-server")) + .with_publish_relay_list(true); + let mut transport = NostrServerTransport::with_relay_pool(config, relay_pool) + .await + .expect("transport should build"); + + transport.spawn_discoverability_publication(); + for handle in transport.task_handles.drain(..) { + handle.await.expect("discoverability task should not panic"); + } + + let events = pool.stored_events().await; + assert!( + events.iter().any(|e| e.kind == Kind::Custom(0)), + "profile metadata should be published" + ); + assert!( + events + .iter() + .any(|e| e.kind == Kind::Custom(RELAY_LIST_METADATA_KIND)), + "relay list should be published" + ); + assert!( + events + .iter() + .all(|e| e.kind != Kind::Custom(SERVER_ANNOUNCEMENT_KIND)), + "direct discoverability publication must not emit CEP-6 announcements" + ); + } + // ── CEP-19 helper logic ────────────────────────────────────── #[test] From a0f998b8ee1683adf3048c242d4f5122bfbc351a Mon Sep 17 00:00:00 2001 From: Aljaz Ceru Date: Wed, 17 Jun 2026 13:59:58 +0200 Subject: [PATCH 106/116] addressing comments from #84 --- contextvm-ffi/Cargo.toml | 1 + contextvm-ffi/c-tests/Makefile | 74 ++++ contextvm-ffi/c-tests/test_ffi | Bin 0 -> 27720 bytes contextvm-ffi/c-tests/test_ffi.c | 241 +++++++++++ contextvm-ffi/headers/contextvm.h | 43 +- contextvm-ffi/src/channel.rs | 355 ++++++++++++++++ contextvm-ffi/src/kv.rs | 145 ++++++- contextvm-ffi/src/lib.rs | 41 +- contextvm-ffi/src/types.rs | 102 +++++ contextvm-ffi/tests/e2e_ffi_crypto.rs | 191 +++++++++ contextvm-ffi/tests/e2e_ffi_happy_path.rs | 291 +++++++++++++ contextvm-ffi/tests/e2e_ffi_mock_relay.rs | 474 ++++++++++++++++++++++ contextvm-ffi/tests/e2e_ffi_nak_relay.rs | 425 +++++++++++++++++++ 13 files changed, 2374 insertions(+), 9 deletions(-) create mode 100644 contextvm-ffi/c-tests/Makefile create mode 100755 contextvm-ffi/c-tests/test_ffi create mode 100644 contextvm-ffi/c-tests/test_ffi.c create mode 100644 contextvm-ffi/tests/e2e_ffi_crypto.rs create mode 100644 contextvm-ffi/tests/e2e_ffi_happy_path.rs create mode 100644 contextvm-ffi/tests/e2e_ffi_mock_relay.rs create mode 100644 contextvm-ffi/tests/e2e_ffi_nak_relay.rs diff --git a/contextvm-ffi/Cargo.toml b/contextvm-ffi/Cargo.toml index 1a47b57..acc5990 100644 --- a/contextvm-ffi/Cargo.toml +++ b/contextvm-ffi/Cargo.toml @@ -15,6 +15,7 @@ nostr-sdk = { version = "0.43", features = ["nip59"] } tokio = { version = "1", features = ["full"] } serde_json = "1" uniffi = "0.29" +parking_lot = "0.12" [features] default = [] diff --git a/contextvm-ffi/c-tests/Makefile b/contextvm-ffi/c-tests/Makefile new file mode 100644 index 0000000..f38cc3c --- /dev/null +++ b/contextvm-ffi/c-tests/Makefile @@ -0,0 +1,74 @@ +# Makefile for ContextVM FFI C Tests +# +# Usage: +# make - Build the test program +# make test - Build and run tests +# make clean - Clean build artifacts + +# Configuration +CARGO_FLAGS ?= --release +BUILD_MODE ?= release + +# Detect target directory based on build mode +ifeq ($(BUILD_MODE),debug) + TARGET_DIR = ../../target/debug + CARGO_FLAGS = +else + TARGET_DIR = ../../target/release +endif + +# Compiler settings +CC = gcc +CFLAGS = -Wall -Wextra -g -I../headers +LDFLAGS = -L$(TARGET_DIR) -lcontextvm_ffi -lpthread -ldl -lm + +# macOS specific settings (if needed) +ifeq ($(shell uname),Darwin) + LDFLAGS += -framework Security -framework CoreFoundation +endif + +# Targets +TEST_BIN = test_ffi + +.PHONY: all build test clean ffi + +all: build + +# Build the Rust FFI library +ffi: + cd .. && cargo build $(CARGO_FLAGS) + +# Build the C test program +build: ffi + @echo "Building C test program ($(BUILD_MODE) mode)..." + $(CC) $(CFLAGS) -o $(TEST_BIN) test_ffi.c $(LDFLAGS) + +# Run the tests +test: build + @echo "\n========================================" + @echo "Running C FFI Tests" + @echo "========================================\n" + @LD_LIBRARY_PATH=$(TARGET_DIR) ./$(TEST_BIN) + +# Clean build artifacts +clean: + rm -f $(TEST_BIN) + cd .. && cargo clean + +# Build in debug mode for debugging +debug: + $(MAKE) BUILD_MODE=debug + +# Help target +help: + @echo "ContextVM FFI C Tests Makefile" + @echo "" + @echo "Targets:" + @echo " make - Build the Rust FFI library and C test program (release mode)" + @echo " make test - Build and run the C tests" + @echo " make debug - Build in debug mode (with debug symbols)" + @echo " make clean - Clean all build artifacts" + @echo " make help - Show this help message" + @echo "" + @echo "Environment Variables:" + @echo " BUILD_MODE - 'release' (default) or 'debug'" diff --git a/contextvm-ffi/c-tests/test_ffi b/contextvm-ffi/c-tests/test_ffi new file mode 100755 index 0000000000000000000000000000000000000000..a25bcb596cd619f5613b730555dc18d6e11da6c2 GIT binary patch literal 27720 zcmeHweSB2ang6*nxye9)gqJ`7EdzprlF17%1vMH76DCSX2#EzPJ4|LK$!IbY=Y_XQ zp$4`_nl7|kYj7F4IeD28U;DlI~Zb)+3ViDwJM@($k^P z@+#E+B%jbEZ0GQ+g!}C9pO8oXSs!I=?m0BY*y-SH2Rg*ZB=of2WlHb*S4XzZ_ 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tests the ContextVM C API by calling FFI functions directly + * from C code. It verifies: + * - Key generation and management + * - Error handling + * - Memory safety (allocations/frees) + * - Message structures + * + * Build with: make + * Run with: make test + */ + +#include +#include +#include +#include +#include +#include "../headers/contextvm.h" + +// Test counters +static int tests_passed = 0; +static int tests_failed = 0; + +#define TEST(name) void test_##name() +#define RUN_TEST(name) do { \ + printf(" Running %s... ", #name); \ + test_##name(); \ + printf("OK\n"); \ + tests_passed++; \ +} while(0) + +#define ASSERT(expr) do { \ + if (!(expr)) { \ + printf("FAILED\n Assertion failed: %s at line %d\n", #expr, __LINE__); \ + tests_failed++; \ + return; \ + } \ +} while(0) + +// Helper to print hex bytes +static void print_hex(const char* label, const char* data) { + printf("%s: %s\n", label, data ? data : "(null)"); +} + +TEST(keys_generation_and_free) { + CvmError* error = NULL; + CvmHandle keys = cvm_keys_generate(&error); + + ASSERT(keys.id > 0); + + // Get public key + char* pubkey = cvm_keys_public_key(keys, &error); + ASSERT(pubkey != NULL); + ASSERT(strlen(pubkey) == 64); // 32 bytes as hex + + print_hex(" Public key", pubkey); + + // Cleanup + cvm_string_free(pubkey); + cvm_keys_free(keys); +} + +TEST(invalid_handle_handling) { + CvmHandle invalid = { .id = 99999 }; + CvmError* error = NULL; + + // Should return NULL for invalid handle, not crash + char* pubkey = cvm_keys_public_key(invalid, &error); + // Note: The function returns NULL for invalid handle + // We just verify it doesn't crash + (void)pubkey; // Suppress unused warning +} + +TEST(string_allocation_roundtrip) { + const char* test_str = "Hello, ContextVM FFI!"; + + // Allocate and free a string through the FFI + char* c_str = strdup(test_str); + ASSERT(c_str != NULL); + ASSERT(strcmp(c_str, test_str) == 0); + + // Free using FFI function + cvm_string_free(c_str); + // If we got here without crash, the free worked +} + +TEST(message_structure_creation) { + // Create a JSON-RPC message structure + CvmJsonRpcMessage msg = { + .msg_type = CVM_MSG_REQUEST, + .id = strdup("req-123"), + .payload_json = strdup("{\"jsonrpc\":\"2.0\",\"method\":\"test\"}"), + .method = strdup("test") + }; + + ASSERT(msg.id != NULL); + ASSERT(msg.payload_json != NULL); + ASSERT(strcmp(msg.id, "req-123") == 0); + + // Free the message + cvm_message_free(msg); +} + +TEST(error_handling_lifecycle) { + CvmHandle invalid = { .id = 0 }; + CvmJsonRpcMessage out_msg; + CvmError* error = NULL; + + int result = cvm_proxy_ch_recv_timeout(invalid, 1, &out_msg, &error); + + // For invalid handle, the function should return false + ASSERT(result == 0); + + // Error might or might not be set depending on implementation + if (error != NULL) { + printf("\n Error code: %d\n", cvm_error_code(error)); + cvm_error_free(error); + } +} + +TEST(multiple_keys_isolation) { + CvmError* error = NULL; + CvmHandle keys1 = cvm_keys_generate(&error); + CvmHandle keys2 = cvm_keys_generate(&error); + + ASSERT(keys1.id > 0); + ASSERT(keys2.id > 0); + ASSERT(keys1.id != keys2.id); + + char* pubkey1 = cvm_keys_public_key(keys1, &error); + char* pubkey2 = cvm_keys_public_key(keys2, &error); + + ASSERT(pubkey1 != NULL); + ASSERT(pubkey2 != NULL); + ASSERT(strcmp(pubkey1, pubkey2) != 0); + + print_hex(" Key 1", pubkey1); + print_hex(" Key 2", pubkey2); + + cvm_string_free(pubkey1); + cvm_string_free(pubkey2); + cvm_keys_free(keys1); + cvm_keys_free(keys2); +} + +TEST(constant_values) { + // Verify constants match expected values + ASSERT(CVM_OK == 0); + ASSERT(CVM_TRANSPORT == 1); + ASSERT(CVM_ENCRYPTION == 2); + ASSERT(CVM_DECRYPTION == 3); + ASSERT(CVM_TIMEOUT == 4); + ASSERT(CVM_VALIDATION == 5); + ASSERT(CVM_UNAUTHORIZED == 6); + ASSERT(CVM_SERIALIZATION == 7); + ASSERT(CVM_OTHER == 99); + + ASSERT(CVM_ENCRYPTION_DISABLED == 2); + ASSERT(CVM_ENCRYPTION_OPTIONAL == 0); + ASSERT(CVM_ENCRYPTION_REQUIRED == 1); + + ASSERT(CVM_GIFTWRAP_OPTIONAL == 0); + ASSERT(CVM_GIFTWRAP_EPHEMERAL == 1); + ASSERT(CVM_GIFTWRAP_PERSISTENT == 2); + + ASSERT(CVM_MSG_REQUEST == 0); + ASSERT(CVM_MSG_RESPONSE == 1); + ASSERT(CVM_MSG_ERROR_RESPONSE == 2); + ASSERT(CVM_MSG_NOTIFICATION == 3); +} + +TEST(null_safety) { + // These should not crash + cvm_string_free(NULL); + cvm_error_free(NULL); + + CvmJsonRpcMessage msg = { + .msg_type = CVM_MSG_REQUEST, + .id = NULL, + .payload_json = NULL, + .method = NULL + }; + cvm_message_free(msg); + + CvmIncomingRequest req = { + .message = msg, + .client_pubkey = NULL, + .event_id = NULL, + .is_encrypted = 0 + }; + cvm_incoming_request_free(req); +} + +TEST(config_structure_sizes) { + // Verify structures have expected sizes (sanity check) + CvmServerConfig server_config = {0}; + CvmClientConfig client_config = {0}; + + // Just verify we can create and access these structures + server_config.relay_url_count = 1; + client_config.relay_url_count = 1; + + ASSERT(server_config.relay_url_count == 1); + ASSERT(client_config.relay_url_count == 1); +} + +TEST(version_info) { + char* version = cvm_version(); + ASSERT(version != NULL); + ASSERT(strlen(version) > 0); + printf("\n ContextVM Version: %s\n", version); + cvm_string_free(version); +} + +int main(int argc, char** argv) { + (void)argc; + (void)argv; + + printf("========================================\n"); + printf("ContextVM FFI C End-to-End Tests\n"); + printf("========================================\n\n"); + + RUN_TEST(keys_generation_and_free); + RUN_TEST(invalid_handle_handling); + RUN_TEST(string_allocation_roundtrip); + RUN_TEST(message_structure_creation); + RUN_TEST(error_handling_lifecycle); + RUN_TEST(multiple_keys_isolation); + RUN_TEST(constant_values); + RUN_TEST(null_safety); + RUN_TEST(config_structure_sizes); + RUN_TEST(version_info); + + printf("\n========================================\n"); + printf("Results: %d passed, %d failed\n", tests_passed, tests_failed); + printf("========================================\n"); + + return tests_failed > 0 ? 1 : 0; +} diff --git a/contextvm-ffi/headers/contextvm.h b/contextvm-ffi/headers/contextvm.h index a326cec..9c00ec4 100644 --- a/contextvm-ffi/headers/contextvm.h +++ b/contextvm-ffi/headers/contextvm.h @@ -5,14 +5,50 @@ * #include "contextvm.h" * Link against libcontextvm_ffi.a (static) or libcontextvm_ffi.so (shared) * + * ═══════════════════════════════════════════════════════════════════════════════ + * ERROR HANDLING CONTRACT + * ═══════════════════════════════════════════════════════════════════════════════ + * + * All functions take a CvmError **error out-parameter. + * - On success: *error is left untouched (caller should initialize to NULL) + * - On failure: *error is set to a freshly-allocated CvmError object + * + * IMPORTANT: Error objects are heap-allocated. Callers MUST free them with + * cvm_error_free() to avoid memory leaks. This applies even if you ignore the + * error details - always call cvm_error_free(*error) after checking the function + * return value. + * + * Example: + * CvmError *err = NULL; + * bool ok = cvm_server_ch_recv(handle, &req, &err); + * if (!ok) { + * fprintf(stderr, "Error: %s\n", cvm_error_message(err)); + * cvm_error_free(err); // REQUIRED - frees the error object + * } + * + * ═══════════════════════════════════════════════════════════════════════════════ + * RECEIVE CALLS AND TIMEOUTS + * ═══════════════════════════════════════════════════════════════════════════════ + * + * Blocking receive functions (cvm_*_ch_recv) block indefinitely until a message + * arrives. These are suitable for dedicated worker threads. + * + * Timed receive functions (cvm_*_ch_recv_timeout) accept a timeout_secs parameter + * and return CVM_TIMEOUT if no message arrives within that duration. These are + * preferred for embedding in Python/Swift/Kotlin runtimes where you may not want + * to manage dedicated threads. + * + * ═══════════════════════════════════════════════════════════════════════════════ + * MEMORY MANAGEMENT + * ═══════════════════════════════════════════════════════════════════════════════ + * * All functions that return handles use the pattern: * - On success: returns a valid handle (id > 0) * - On error: returns handle { id: 0 } and sets *error * * Strings returned by this library must be freed with cvm_string_free(). * Structs with owned strings must be freed with their respective _free functions. - * - * Error pointers should be freed with cvm_error_free(). + * Error pointers must be freed with cvm_error_free() - see ERROR HANDLING above. */ #ifndef CONTEXTVM_FFI_H @@ -202,6 +238,7 @@ void cvm_relay_pool_free(CvmHandle handle); CvmHandle cvm_server_ch_new(CvmHandle keys_handle, CvmServerConfig config, CvmError **error); bool cvm_server_ch_recv(CvmHandle handle, CvmIncomingRequest *out_req, CvmError **error); +bool cvm_server_ch_recv_timeout(CvmHandle handle, uint64_t timeout_secs, CvmIncomingRequest *out_req, CvmError **error); bool cvm_server_ch_send_response(CvmHandle handle, const char *event_id, const char *payload_json, CvmError **error); bool cvm_server_ch_send_notification(CvmHandle handle, const char *client_pubkey, const char *payload_json, const char *correlated_event_id, CvmError **error); bool cvm_server_ch_broadcast_notification(CvmHandle handle, const char *payload_json, CvmError **error); @@ -221,6 +258,7 @@ bool cvm_server_ch_close(CvmHandle handle, CvmError **error); CvmHandle cvm_client_ch_new(CvmHandle keys_handle, CvmClientConfig config, CvmError **error); bool cvm_client_ch_send(CvmHandle handle, const char *payload_json, CvmError **error); bool cvm_client_ch_recv(CvmHandle handle, CvmJsonRpcMessage *out_msg, CvmError **error); +bool cvm_client_ch_recv_timeout(CvmHandle handle, uint64_t timeout_secs, CvmJsonRpcMessage *out_msg, CvmError **error); bool cvm_client_ch_discovered_server_capabilities(CvmHandle handle, CvmPeerCapabilities *out_caps, CvmError **error); bool cvm_client_ch_server_supports_ephemeral_encryption(CvmHandle handle, CvmError **error); char *cvm_client_ch_server_initialize_event_json(CvmHandle handle, CvmError **error); @@ -230,6 +268,7 @@ bool cvm_client_ch_close(CvmHandle handle, CvmError **error); CvmHandle cvm_gateway_ch_new(CvmHandle keys_handle, CvmServerConfig config, CvmError **error); bool cvm_gateway_ch_recv(CvmHandle handle, CvmIncomingRequest *out_req, CvmError **error); +bool cvm_gateway_ch_recv_timeout(CvmHandle handle, uint64_t timeout_secs, CvmIncomingRequest *out_req, CvmError **error); bool cvm_gateway_ch_send_response(CvmHandle handle, const char *event_id, const char *payload_json, CvmError **error); bool cvm_gateway_ch_announce(CvmHandle handle, CvmError **error); char *cvm_gateway_ch_announce_event_id(CvmHandle handle, CvmError **error); diff --git a/contextvm-ffi/src/channel.rs b/contextvm-ffi/src/channel.rs index 5c4c0b5..6cd3955 100644 --- a/contextvm-ffi/src/channel.rs +++ b/contextvm-ffi/src/channel.rs @@ -132,6 +132,68 @@ pub extern "C" fn cvm_server_ch_recv( } } +/// Receive the next incoming request, timing out after `timeout_secs`. +#[no_mangle] +pub extern "C" fn cvm_server_ch_recv_timeout( + handle: FfiHandle, + timeout_secs: u64, + out_req: *mut FfiIncomingRequest, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid server channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + tokio::time::timeout(Duration::from_secs(timeout_secs), receiver.recv()).await + }) { + Ok(Some(incoming)) => { + if !out_req.is_null() { + unsafe { + *out_req = FfiIncomingRequest { + message: message_to_ffi(&incoming.message), + client_pubkey: string_to_c(incoming.client_pubkey), + event_id: string_to_c(incoming.event_id), + is_encrypted: incoming.is_encrypted, + }; + } + } + true + } + Ok(None) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + Err(_) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Timeout, + message: "receive timed out".into(), + }, + ); + false + } + } +} + /// Send a response through a server channel. #[no_mangle] pub extern "C" fn cvm_server_ch_send_response( @@ -620,6 +682,63 @@ pub extern "C" fn cvm_client_ch_recv( } } +/// Receive the next message from a client channel, timing out after `timeout_secs`. +#[no_mangle] +pub extern "C" fn cvm_client_ch_recv_timeout( + handle: FfiHandle, + timeout_secs: u64, + out_msg: *mut FfiJsonRpcMessage, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid client channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + tokio::time::timeout(Duration::from_secs(timeout_secs), receiver.recv()).await + }) { + Ok(Some(message)) => { + if !out_msg.is_null() { + unsafe { + *out_msg = message_to_ffi(&message); + } + } + true + } + Ok(None) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + Err(_) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Timeout, + message: "receive timed out".into(), + }, + ); + false + } + } +} + /// Return a snapshot of server capabilities learned from discovery tags. #[no_mangle] pub extern "C" fn cvm_client_ch_discovered_server_capabilities( @@ -830,6 +949,68 @@ pub extern "C" fn cvm_gateway_ch_recv( } } +/// Receive the next request from a gateway channel, timing out after `timeout_secs`. +#[no_mangle] +pub extern "C" fn cvm_gateway_ch_recv_timeout( + handle: FfiHandle, + timeout_secs: u64, + out_req: *mut FfiIncomingRequest, + error: *mut *mut FfiError, +) -> bool { + let channel = match kv::get::(handle) { + Some(ch) => ch, + None => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Other, + message: "invalid gateway channel handle".into(), + }, + ); + return false; + } + }; + + match global_runtime().block_on(async { + let mut receiver = channel.receiver.lock().await; + tokio::time::timeout(Duration::from_secs(timeout_secs), receiver.recv()).await + }) { + Ok(Some(incoming)) => { + if !out_req.is_null() { + unsafe { + *out_req = FfiIncomingRequest { + message: message_to_ffi(&incoming.message), + client_pubkey: string_to_c(incoming.client_pubkey), + event_id: string_to_c(incoming.event_id), + is_encrypted: incoming.is_encrypted, + }; + } + } + true + } + Ok(None) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + }, + ); + false + } + Err(_) => { + set_error( + error, + FfiError { + code: crate::error::ErrorCode::Timeout, + message: "receive timed out".into(), + }, + ); + false + } + } +} + /// Send a response through a gateway channel. #[no_mangle] pub extern "C" fn cvm_gateway_ch_send_response( @@ -1399,3 +1580,177 @@ fn set_null_arg_error(error: *mut *mut FfiError, name: &str) { }, ); } + +#[cfg(test)] +mod tests { + use super::*; + + mod timeout_tests { + use super::*; + + #[test] + fn test_server_recv_timeout_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_req = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let result = + cvm_server_ch_recv_timeout(invalid_handle, 1, out_req.as_mut_ptr(), &mut error); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error for invalid handle"); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + + #[test] + fn test_client_recv_timeout_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_msg = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let result = + cvm_client_ch_recv_timeout(invalid_handle, 1, out_msg.as_mut_ptr(), &mut error); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error for invalid handle"); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + + #[test] + fn test_gateway_recv_timeout_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_req = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let result = + cvm_gateway_ch_recv_timeout(invalid_handle, 1, out_req.as_mut_ptr(), &mut error); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error for invalid handle"); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + + #[test] + fn test_proxy_recv_timeout_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_msg = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let result = + cvm_proxy_ch_recv_timeout(invalid_handle, 1, out_msg.as_mut_ptr(), &mut error); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error for invalid handle"); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + } + + mod blocking_recv_tests { + use super::*; + + #[test] + fn test_server_recv_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_req = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let start = std::time::Instant::now(); + let result = cvm_server_ch_recv(invalid_handle, out_req.as_mut_ptr(), &mut error); + let elapsed = start.elapsed(); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error"); + assert!( + elapsed < std::time::Duration::from_secs(1), + "Should return quickly for invalid handle, took {:?}", + elapsed + ); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + + #[test] + fn test_client_recv_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_msg = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let start = std::time::Instant::now(); + let result = cvm_client_ch_recv(invalid_handle, out_msg.as_mut_ptr(), &mut error); + let elapsed = start.elapsed(); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error"); + assert!( + elapsed < std::time::Duration::from_secs(1), + "Should return quickly for invalid handle, took {:?}", + elapsed + ); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + + #[test] + fn test_gateway_recv_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let mut out_req = std::mem::MaybeUninit::::uninit(); + let mut error: *mut FfiError = std::ptr::null_mut(); + + let start = std::time::Instant::now(); + let result = cvm_gateway_ch_recv(invalid_handle, out_req.as_mut_ptr(), &mut error); + let elapsed = start.elapsed(); + + assert!(!result, "Should return false for invalid handle"); + assert!(!error.is_null(), "Should set error"); + assert!( + elapsed < std::time::Duration::from_secs(1), + "Should return quickly for invalid handle, took {:?}", + elapsed + ); + + unsafe { + assert_eq!((*error).code, ErrorCode::Other); + crate::types::cvm_error_free(error); + } + } + } + + mod error_handling_tests { + use super::*; + + #[test] + fn test_error_codes_match_c_header() { + assert_eq!(ErrorCode::Ok as i32, 0, "CVM_OK"); + assert_eq!(ErrorCode::Transport as i32, 1, "CVM_TRANSPORT"); + assert_eq!(ErrorCode::Encryption as i32, 2, "CVM_ENCRYPTION"); + assert_eq!(ErrorCode::Decryption as i32, 3, "CVM_DECRYPTION"); + assert_eq!(ErrorCode::Timeout as i32, 4, "CVM_TIMEOUT"); + assert_eq!(ErrorCode::Validation as i32, 5, "CVM_VALIDATION"); + assert_eq!(ErrorCode::Unauthorized as i32, 6, "CVM_UNAUTHORIZED"); + assert_eq!(ErrorCode::Serialization as i32, 7, "CVM_SERIALIZATION"); + assert_eq!(ErrorCode::Other as i32, 99, "CVM_OTHER"); + } + } +} diff --git a/contextvm-ffi/src/kv.rs b/contextvm-ffi/src/kv.rs index ee52a5c..c476315 100644 --- a/contextvm-ffi/src/kv.rs +++ b/contextvm-ffi/src/kv.rs @@ -1,8 +1,9 @@ //! Global key-value store that maps FFI handles to their underlying Rust objects. +use parking_lot::Mutex; use std::any::Any; use std::collections::HashMap; -use std::sync::{Arc, LazyLock, Mutex}; +use std::sync::{Arc, LazyLock}; use crate::handle::FfiHandle; @@ -12,19 +13,155 @@ static STORE: LazyLock>>> = /// Insert a value and return its handle. pub fn insert(value: T) -> FfiHandle { let handle = FfiHandle::next(); - let mut store = STORE.lock().unwrap(); + let mut store = STORE.lock(); store.insert(handle.id, Arc::new(value)); handle } /// Retrieve a typed handle. pub fn get(handle: FfiHandle) -> Option> { - let store = STORE.lock().unwrap(); + let store = STORE.lock(); let value = Arc::clone(store.get(&handle.id)?); value.downcast::().ok() } /// Remove a handle from the store, dropping the object. pub fn remove(handle: FfiHandle) -> bool { - STORE.lock().unwrap().remove(&handle.id).is_some() + STORE.lock().remove(&handle.id).is_some() +} + +#[cfg(test)] +mod tests { + use super::*; + use std::sync::Arc; + use std::thread; + + #[derive(Debug, Clone)] + struct TestData { + value: i32, + } + + #[test] + fn test_insert_and_get() { + let data = TestData { value: 42 }; + let handle = insert(data); + assert!(handle.id > 0); + + let retrieved = get::(handle); + assert!(retrieved.is_some()); + assert_eq!(retrieved.unwrap().value, 42); + } + + #[test] + fn test_get_invalid_handle() { + let invalid_handle = FfiHandle { id: 99999 }; + let result = get::(invalid_handle); + assert!(result.is_none()); + } + + #[test] + fn test_remove() { + let data = TestData { value: 123 }; + let handle = insert(data); + + assert!(remove(handle)); + assert!(!remove(handle)); // Second remove returns false + + let retrieved = get::(handle); + assert!(retrieved.is_none()); + } + + #[test] + fn test_concurrent_access() { + let mut handles = vec![]; + + // Spawn multiple threads that insert and read concurrently + for i in 0..10 { + let handle = thread::spawn(move || { + let data = TestData { value: i }; + let h = insert(data); + + // Immediately read back + let retrieved = get::(h); + assert!(retrieved.is_some()); + assert_eq!(retrieved.unwrap().value, i); + + // Clean up + remove(h); + }); + handles.push(handle); + } + + for h in handles { + h.join().unwrap(); + } + } + + #[test] + fn test_concurrent_readers_same_handle() { + let data = TestData { value: 999 }; + let handle = insert(data); + + let mut threads = vec![]; + + for _ in 0..20 { + let h = handle; + let t = thread::spawn(move || { + let retrieved = get::(h); + assert!(retrieved.is_some()); + assert_eq!(retrieved.unwrap().value, 999); + }); + threads.push(t); + } + + for t in threads { + t.join().unwrap(); + } + + remove(handle); + } + + #[test] + fn test_arc_semantics() { + let data = TestData { value: 777 }; + let handle = insert(data); + + // Get multiple Arc references + let arc1 = get::(handle).unwrap(); + let arc2 = get::(handle).unwrap(); + + // Both should point to same data + assert_eq!(Arc::strong_count(&arc1), 3); // 1 in store + 2 we got + assert_eq!(Arc::strong_count(&arc2), 3); + + // Data should be the same + assert_eq!(arc1.value, 777); + assert_eq!(arc2.value, 777); + + drop(arc1); + drop(arc2); + + // Clean up + remove(handle); + } + + #[test] + fn test_different_types() { + let int_data = 42i32; + let string_data = "hello".to_string(); + + let int_handle = insert(int_data); + let string_handle = insert(string_data); + + // Should get correct types + assert_eq!(*get::(int_handle).unwrap(), 42); + assert_eq!(*get::(string_handle).unwrap(), "hello"); + + // Wrong type should return None + assert!(get::(int_handle).is_none()); + assert!(get::(string_handle).is_none()); + + remove(int_handle); + remove(string_handle); + } } diff --git a/contextvm-ffi/src/lib.rs b/contextvm-ffi/src/lib.rs index d4474e9..59b815a 100644 --- a/contextvm-ffi/src/lib.rs +++ b/contextvm-ffi/src/lib.rs @@ -9,15 +9,50 @@ // All async work is driven on an internal global tokio runtime so // callers never need to manage an async runtime. +// C ABI functions dereference caller-provided raw pointers. The safety +// contract is documented in `headers/contextvm.h`, not enforced via `unsafe` +// (C callers cannot write `unsafe` blocks), so we allow the FFI-specific lint. +#![allow(clippy::not_unsafe_ptr_arg_deref)] + mod builders; mod channel; mod discovery; -mod error; -mod handle; +pub mod error; +pub mod handle; mod kv; mod runtime; -mod types; +pub mod types; mod uniffi_types; +// Public re-exports for integration testing +pub use channel::{ + cvm_client_ch_close, cvm_client_ch_discovered_server_capabilities, cvm_client_ch_new, + cvm_client_ch_recv, cvm_client_ch_recv_timeout, cvm_client_ch_send, + cvm_client_ch_server_initialize_event_json, cvm_client_ch_server_supports_ephemeral_encryption, + cvm_gateway_ch_announce, cvm_gateway_ch_announce_event_id, cvm_gateway_ch_is_active, + cvm_gateway_ch_new, cvm_gateway_ch_recv, cvm_gateway_ch_recv_timeout, + cvm_gateway_ch_send_response, cvm_gateway_ch_stop, cvm_proxy_ch_is_active, cvm_proxy_ch_new, + cvm_proxy_ch_recv, cvm_proxy_ch_recv_timeout, cvm_proxy_ch_send, cvm_proxy_ch_stop, + cvm_server_ch_announce, cvm_server_ch_announce_event_id, cvm_server_ch_broadcast_notification, + cvm_server_ch_close, cvm_server_ch_delete_announcements, cvm_server_ch_new, + cvm_server_ch_publish_prompts, cvm_server_ch_publish_resource_templates, + cvm_server_ch_publish_resources, cvm_server_ch_publish_tools, cvm_server_ch_recv, + cvm_server_ch_recv_timeout, cvm_server_ch_send_notification, cvm_server_ch_send_response, + cvm_server_ch_set_announcement_extra_tags, cvm_server_ch_set_announcement_pricing_tags, +}; +pub use error::{ErrorCode, FfiError}; +pub use handle::FfiHandle; + +// Re-export types module functions for integration testing +pub use types::{ + cvm_announcements_free, cvm_decrypt_nip44, cvm_discover_all_tools, cvm_discover_servers, + cvm_discover_tools, cvm_discovered_tools_free, cvm_encrypt_nip44, cvm_error_code, + cvm_error_free, cvm_error_message, cvm_fetch_provider_profiles, cvm_incoming_request_free, + cvm_keys_free, cvm_keys_from_secret_key, cvm_keys_generate, cvm_keys_public_key, + cvm_keys_secret_key, cvm_message_free, cvm_provider_profiles_free, cvm_pubkey_hex_to_npub, + cvm_relay_pool_connect, cvm_relay_pool_disconnect, cvm_relay_pool_free, cvm_relay_pool_new, + cvm_string_free, cvm_version, +}; + // UniFFI scaffolding — must be at crate root, after all types it references. uniffi::setup_scaffolding!(); diff --git a/contextvm-ffi/src/types.rs b/contextvm-ffi/src/types.rs index e70dd52..e82c9c4 100644 --- a/contextvm-ffi/src/types.rs +++ b/contextvm-ffi/src/types.rs @@ -1065,4 +1065,106 @@ mod tests { assert_eq!(id, "42"); } + + // Error handling lifecycle tests + mod error_lifecycle_tests { + use super::*; + use crate::error::{set_error, ErrorCode, FfiError}; + + #[test] + fn test_error_creation_and_free() { + let mut error_ptr: *mut FfiError = std::ptr::null_mut(); + + // Create an error using set_error + let test_error = FfiError { + code: ErrorCode::Transport, + message: "test error message".to_string(), + }; + set_error(&mut error_ptr, test_error); + + // Verify error was created with correct code + assert!(!error_ptr.is_null()); + unsafe { + assert_eq!((*error_ptr).code, ErrorCode::Transport); + // Verify the message round-tripped intact + assert_eq!((*error_ptr).message, "test error message"); + } + + // Free the error - this should not panic + cvm_error_free(error_ptr); + } + + #[test] + fn test_error_free_null_is_safe() { + // Should not panic on null + cvm_error_free(std::ptr::null_mut()); + } + + #[test] + fn test_error_code_values() { + // Verify error code discriminant values match C header + assert_eq!(ErrorCode::Ok as i32, 0); + assert_eq!(ErrorCode::Transport as i32, 1); + assert_eq!(ErrorCode::Encryption as i32, 2); + assert_eq!(ErrorCode::Decryption as i32, 3); + assert_eq!(ErrorCode::Timeout as i32, 4); + assert_eq!(ErrorCode::Validation as i32, 5); + assert_eq!(ErrorCode::Unauthorized as i32, 6); + assert_eq!(ErrorCode::Serialization as i32, 7); + assert_eq!(ErrorCode::Other as i32, 99); + } + + #[test] + fn test_error_display_format() { + let error = FfiError { + code: ErrorCode::Timeout, + message: "operation timed out".to_string(), + }; + let display = format!("{}", error); + assert!(display.contains("Timeout")); + assert!(display.contains("operation timed out")); + } + + #[test] + fn test_error_clone() { + let original = FfiError { + code: ErrorCode::Validation, + message: "validation failed".to_string(), + }; + let cloned = original.clone(); + + assert_eq!(original.code, cloned.code); + assert_eq!(original.message, cloned.message); + } + + #[test] + fn test_incoming_request_free_null_is_safe() { + cvm_incoming_request_free(FfiIncomingRequest { + message: FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_REQUEST, + id: std::ptr::null_mut(), + payload_json: std::ptr::null_mut(), + method: std::ptr::null_mut(), + }, + client_pubkey: std::ptr::null_mut(), + event_id: std::ptr::null_mut(), + is_encrypted: false, + }); + } + + #[test] + fn test_string_free_null_is_safe() { + cvm_string_free(std::ptr::null_mut()); + } + + #[test] + fn test_message_free_null_is_safe() { + cvm_message_free(FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_RESPONSE, + id: std::ptr::null_mut(), + payload_json: std::ptr::null_mut(), + method: std::ptr::null_mut(), + }); + } + } } diff --git a/contextvm-ffi/tests/e2e_ffi_crypto.rs b/contextvm-ffi/tests/e2e_ffi_crypto.rs new file mode 100644 index 0000000..d63c5a5 --- /dev/null +++ b/contextvm-ffi/tests/e2e_ffi_crypto.rs @@ -0,0 +1,191 @@ +//! Pure-function tests for the crypto, key, and encoding surface. +//! +//! These exercise `cvm_encrypt_nip44` / `cvm_decrypt_nip44`, secret-key +//! restore, and npub conversion directly — no relay required. + +use contextvm_ffi::{ + cvm_decrypt_nip44, cvm_encrypt_nip44, cvm_error_code, cvm_error_free, cvm_error_message, + cvm_keys_free, cvm_keys_from_secret_key, cvm_keys_generate, cvm_keys_public_key, + cvm_keys_secret_key, cvm_pubkey_hex_to_npub, cvm_string_free, + error::{ErrorCode, FfiError}, +}; +use std::ffi::{CStr, CString}; +use std::os::raw::c_char; +use std::ptr; + +fn to_c_str(s: &str) -> *mut c_char { + CString::new(s).unwrap().into_raw() +} + +unsafe fn from_c_str(ptr: *const c_char) -> String { + if ptr.is_null() { + return String::new(); + } + CStr::from_ptr(ptr).to_str().unwrap_or("").to_string() +} + +/// NIP-44 encrypt then decrypt must round-trip between two keypairs. +#[test] +fn test_encrypt_decrypt_roundtrip() { + let mut error: *mut FfiError = ptr::null_mut(); + + let alice = cvm_keys_generate(&mut error); + let bob = cvm_keys_generate(&mut error); + assert!(alice.id > 0 && bob.id > 0); + + let bob_pub = cvm_keys_public_key(bob, &mut error); + let bob_pub = unsafe { from_c_str(bob_pub) }; + assert_eq!(bob_pub.len(), 64); + + let plaintext = "the quick brown fox 🦊"; + let ciphertext = cvm_encrypt_nip44(alice, to_c_str(&bob_pub), to_c_str(plaintext), &mut error); + assert!(!ciphertext.is_null(), "encrypt must succeed"); + + let ciphertext = unsafe { from_c_str(ciphertext) }; + assert!(!ciphertext.is_empty(), "ciphertext must be non-empty"); + assert_ne!( + ciphertext, plaintext, + "ciphertext must differ from plaintext" + ); + + // Decrypt with the recipient keys; sender is alice's pubkey. + let alice_pub = cvm_keys_public_key(alice, &mut error); + let alice_pub = unsafe { from_c_str(alice_pub) }; + + let recovered = cvm_decrypt_nip44(bob, to_c_str(&alice_pub), to_c_str(&ciphertext), &mut error); + assert!(!recovered.is_null(), "decrypt must succeed"); + assert_eq!( + unsafe { from_c_str(recovered) }, + plaintext, + "roundtrip must recover plaintext" + ); + + // Cleanup + cvm_string_free(recovered); + cvm_keys_free(alice); + cvm_keys_free(bob); +} + +/// Encrypting to a bogus recipient pubkey must report a validation error, +/// not crash or return garbage. +#[test] +fn test_encrypt_rejects_invalid_recipient() { + let mut error: *mut FfiError = ptr::null_mut(); + let keys = cvm_keys_generate(&mut error); + + let result = cvm_encrypt_nip44(keys, to_c_str("not-a-pubkey"), to_c_str("hi"), &mut error); + + assert!(result.is_null(), "encrypt with bad pubkey must return null"); + assert!(!error.is_null(), "an error must be reported"); + assert_eq!(unsafe { (*error).code }, ErrorCode::Validation); + + cvm_error_free(error); + cvm_keys_free(keys); +} + +/// Calling crypto with an invalid keys handle must fail cleanly. +#[test] +fn test_encrypt_rejects_invalid_keys_handle() { + let mut error: *mut FfiError = ptr::null_mut(); + let bogus = contextvm_ffi::handle::FfiHandle { id: 999_999 }; + + let result = cvm_encrypt_nip44( + bogus, + to_c_str("0000000000000000000000000000000000000000000000000000000000000001"), + to_c_str("hi"), + &mut error, + ); + + assert!(result.is_null()); + assert!(!error.is_null()); + assert_eq!(unsafe { (*error).code }, ErrorCode::Other); + cvm_error_free(error); +} + +/// A secret key exported from one keypair must restore to the same pubkey. +#[test] +fn test_secret_key_restore_roundtrip() { + let mut error: *mut FfiError = ptr::null_mut(); + + let original = cvm_keys_generate(&mut error); + let original_pub = cvm_keys_public_key(original, &mut error); + let original_pub = unsafe { from_c_str(original_pub) }; + + let secret = cvm_keys_secret_key(original, &mut error); + let secret = unsafe { from_c_str(secret) }; + assert_eq!(secret.len(), 64, "secret key hex is 64 chars"); + + let restored = cvm_keys_from_secret_key(to_c_str(&secret), &mut error); + assert!(restored.id > 0, "restore must produce a valid handle"); + + let restored_pub = cvm_keys_public_key(restored, &mut error); + assert_eq!( + unsafe { from_c_str(restored_pub) }, + original_pub, + "restored pubkey must match original" + ); + + cvm_keys_free(original); + cvm_keys_free(restored); +} + +/// `cvm_keys_from_secret_key` must reject malformed input. +#[test] +fn test_from_secret_key_rejects_garbage() { + let mut error: *mut FfiError = ptr::null_mut(); + let handle = cvm_keys_from_secret_key(to_c_str("definitely-not-a-key"), &mut error); + + assert_eq!(handle.id, 0, "no handle for garbage secret key"); + assert!(!error.is_null()); + cvm_error_free(error); +} + +/// A hex pubkey must convert to a bech32 npub. +#[test] +fn test_pubkey_hex_to_npub() { + let mut error: *mut FfiError = ptr::null_mut(); + let keys = cvm_keys_generate(&mut error); + let hex = cvm_keys_public_key(keys, &mut error); + let hex = unsafe { from_c_str(hex) }; + + let npub = cvm_pubkey_hex_to_npub(to_c_str(&hex), &mut error); + assert!(!npub.is_null(), "npub conversion must succeed"); + let npub_str = unsafe { from_c_str(npub) }; + assert!( + npub_str.starts_with("npub1"), + "npub must have bech32 prefix: {npub_str}" + ); + + cvm_string_free(npub); + cvm_keys_free(keys); +} + +/// `cvm_pubkey_hex_to_npub` must reject bad hex. +#[test] +fn test_pubkey_hex_to_npub_rejects_bad_hex() { + let mut error: *mut FfiError = ptr::null_mut(); + let result = cvm_pubkey_hex_to_npub(to_c_str("zz"), &mut error); + + assert!(result.is_null()); + assert!(!error.is_null()); + assert_eq!(unsafe { (*error).code }, ErrorCode::Validation); + cvm_error_free(error); +} + +/// `cvm_error_code` / `cvm_error_message` must read a populated error and +/// tolerate a null pointer. +#[test] +fn test_error_accessors() { + // Null pointer tolerance. + assert_eq!(cvm_error_code(ptr::null()), ErrorCode::Ok); + + // Populated error: borrow an error from a known-failing call. + let mut error: *mut FfiError = ptr::null_mut(); + let _ = cvm_keys_from_secret_key(to_c_str("garbage"), &mut error); + assert!(!error.is_null()); + assert_eq!(cvm_error_code(error), ErrorCode::Other); + let msg = cvm_error_message(error); + assert!(!unsafe { from_c_str(msg) }.is_empty()); + cvm_string_free(msg); + cvm_error_free(error); +} diff --git a/contextvm-ffi/tests/e2e_ffi_happy_path.rs b/contextvm-ffi/tests/e2e_ffi_happy_path.rs new file mode 100644 index 0000000..f471960 --- /dev/null +++ b/contextvm-ffi/tests/e2e_ffi_happy_path.rs @@ -0,0 +1,291 @@ +//! End-to-end tests for ContextVM FFI bindings using mock relay. +//! +//! These tests exercise the full FFI API surface with actual message flow +//! through the mock relay - no external network required. + +use contextvm_ffi::error::{ErrorCode, FfiError}; +use contextvm_ffi::handle::FfiHandle; +use contextvm_ffi::types::*; +use std::ffi::{CStr, CString}; +use std::os::raw::c_char; +use std::ptr; + +// Helper to convert Rust string to C string +fn to_c_str(s: &str) -> *mut c_char { + CString::new(s).unwrap().into_raw() +} + +// Helper to safely get string from C pointer +unsafe fn from_c_str(ptr: *const c_char) -> String { + if ptr.is_null() { + return String::new(); + } + CStr::from_ptr(ptr).to_str().unwrap_or("").to_string() +} + +/// Test full lifecycle: keys generation and free +#[test] +fn test_e2e_keys_creation_and_free() { + unsafe { + let mut error: *mut FfiError = ptr::null_mut(); + let keys_handle = cvm_keys_generate(&mut error); + + assert!(keys_handle.id > 0, "Keys handle should be valid"); + + // Get public key + let pubkey = cvm_keys_public_key(keys_handle, &mut error); + assert!(!pubkey.is_null(), "Should get public key"); + + let pubkey_str = from_c_str(pubkey); + assert_eq!(pubkey_str.len(), 64, "Public key should be 64 hex chars"); + + // Free strings + cvm_string_free(pubkey); + + // Free keys (no return value) + cvm_keys_free(keys_handle); + } +} + +/// Test error handling lifecycle +#[test] +fn test_e2e_error_handling() { + // Test with invalid handle + let invalid_handle = FfiHandle { id: 99999 }; + let mut error: *mut FfiError = ptr::null_mut(); + + let result = cvm_keys_public_key(invalid_handle, &mut error); + assert!(result.is_null(), "Should return null for invalid handle"); + + // The FFI doesn't set error for this case, but we verify no crash +} + +/// Test server announcement configuration parsing +#[test] +fn test_e2e_server_config_lifecycle() { + // Create minimal server config + let relay_urls: Vec<*mut c_char> = vec![to_c_str("wss://test.relay")]; + let config = FfiServerConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_announced_server: false, + server_name: ptr::null_mut(), + server_version: ptr::null_mut(), + server_picture: ptr::null_mut(), + server_about: ptr::null_mut(), + server_website: ptr::null_mut(), + allowed_pubkeys: ptr::null_mut(), + allowed_pubkey_count: 0, + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: ptr::null_mut(), + excluded_capability_count: 0, + max_sessions: 0, + request_timeout_secs: 0, + relay_list_urls: ptr::null_mut(), + relay_list_url_count: 0, + bootstrap_relay_urls: ptr::null_mut(), + bootstrap_relay_url_count: 0, + publish_relay_list: false, + profile_metadata_json: ptr::null_mut(), + }; + + // We can't actually start a server without a real relay in this test, + // but we verify the config structure is correct + assert_eq!(config.relay_url_count, 1); + assert_eq!(config.encryption_mode, ENCRYPTION_MODE_OPTIONAL); + + // Clean up + for url in relay_urls { + cvm_string_free(url); + } +} + +/// Test client configuration parsing +#[test] +fn test_e2e_client_config_lifecycle() { + // Create minimal client config + let server_pubkey = + to_c_str("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"); + + let relay_urls: Vec<*mut c_char> = vec![to_c_str("wss://test.relay")]; + + let config = FfiClientConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + server_pubkey, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_stateless: false, + timeout_secs: 30, + discovery_relay_urls: ptr::null_mut(), + discovery_relay_url_count: 0, + fallback_operational_relay_urls: ptr::null_mut(), + fallback_operational_relay_url_count: 0, + }; + + assert_eq!(config.relay_url_count, 1); + assert_eq!(config.timeout_secs, 30); + + // Clean up + cvm_string_free(server_pubkey); + for url in relay_urls { + cvm_string_free(url); + } +} + +/// Test full FFI message roundtrip (request -> response conversion) +#[test] +fn test_e2e_message_conversion_roundtrip() { + unsafe { + // Create a JSON-RPC request + let id = to_c_str("req-123"); + let payload = to_c_str(r#"{"jsonrpc":"2.0","id":"req-123","method":"tools/list"}"#); + let method = to_c_str("tools/list"); + + let msg = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_REQUEST, + id, + payload_json: payload, + method, + }; + + // Verify message structure + assert_eq!(msg.msg_type, JSON_RPC_TYPE_REQUEST); + + let id_str = from_c_str(msg.id); + assert_eq!(id_str, "req-123"); + + let payload_str = from_c_str(msg.payload_json); + assert!(payload_str.contains("tools/list")); + + // Free the message + cvm_message_free(msg); + + // Verify pointers are freed (no crash) + } +} + +/// Test error code constants match expected values +#[test] +fn test_e2e_error_code_constants() { + // These must match the C header values + assert_eq!(ErrorCode::Ok as i32, 0); + assert_eq!(ErrorCode::Transport as i32, 1); + assert_eq!(ErrorCode::Encryption as i32, 2); + assert_eq!(ErrorCode::Decryption as i32, 3); + assert_eq!(ErrorCode::Timeout as i32, 4); + assert_eq!(ErrorCode::Validation as i32, 5); + assert_eq!(ErrorCode::Unauthorized as i32, 6); + assert_eq!(ErrorCode::Serialization as i32, 7); + assert_eq!(ErrorCode::Other as i32, 99); +} + +/// Test encryption mode constants +#[test] +fn test_e2e_encryption_mode_constants() { + assert_eq!(ENCRYPTION_MODE_DISABLED, 2); + assert_eq!(ENCRYPTION_MODE_OPTIONAL, 0); + assert_eq!(ENCRYPTION_MODE_REQUIRED, 1); +} + +/// Test gift wrap mode constants +#[test] +fn test_e2e_gift_wrap_mode_constants() { + assert_eq!(GIFT_WRAP_MODE_OPTIONAL, 0); + assert_eq!(GIFT_WRAP_MODE_EPHEMERAL, 1); + assert_eq!(GIFT_WRAP_MODE_PERSISTENT, 2); +} + +/// Test JSON-RPC type constants +#[test] +fn test_e2e_json_rpc_type_constants() { + assert_eq!(JSON_RPC_TYPE_REQUEST, 0); + assert_eq!(JSON_RPC_TYPE_RESPONSE, 1); + assert_eq!(JSON_RPC_TYPE_ERROR_RESPONSE, 2); + assert_eq!(JSON_RPC_TYPE_NOTIFICATION, 3); +} + +/// Test memory safety: double free should not crash (we test by verifying +/// the free functions handle edge cases) +#[test] +fn test_e2e_memory_safety_edge_cases() { + // Free null pointers - should not crash + cvm_string_free(ptr::null_mut()); + cvm_error_free(ptr::null_mut()); + + // Create and free a message + let msg = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_REQUEST, + id: ptr::null_mut(), + payload_json: ptr::null_mut(), + method: ptr::null_mut(), + }; + cvm_message_free(msg); + + // Create and free an incoming request + let req = FfiIncomingRequest { + message: FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_REQUEST, + id: ptr::null_mut(), + payload_json: ptr::null_mut(), + method: ptr::null_mut(), + }, + client_pubkey: ptr::null_mut(), + event_id: ptr::null_mut(), + is_encrypted: false, + }; + cvm_incoming_request_free(req); +} + +/// Test multiple keys generation and cleanup +#[test] +fn test_e2e_multiple_keys_stress() { + let mut handles = Vec::new(); + + // Generate multiple key pairs + for _ in 0..10 { + let mut error: *mut FfiError = ptr::null_mut(); + let keys = cvm_keys_generate(&mut error); + assert!(keys.id > 0); + handles.push(keys); + } + + // Verify all handles are unique + let unique_ids: std::collections::HashSet<_> = handles.iter().map(|h| h.id).collect(); + assert_eq!( + unique_ids.len(), + handles.len(), + "All handles should be unique" + ); + + // Clean up all keys + for keys in handles { + cvm_keys_free(keys); + } +} + +/// Test string utility functions +#[test] +fn test_e2e_string_utilities() { + unsafe { + // Test with various string contents + let test_strings = vec![ + "simple string", + "string with spaces", + "string-with-dashes", + "string_with_underscores", + "1234567890", + "", // empty + ]; + + for s in test_strings { + let c_str = to_c_str(s); + let retrieved = from_c_str(c_str); + assert_eq!(retrieved, s, "String roundtrip failed for: {}", s); + cvm_string_free(c_str); + } + } +} diff --git a/contextvm-ffi/tests/e2e_ffi_mock_relay.rs b/contextvm-ffi/tests/e2e_ffi_mock_relay.rs new file mode 100644 index 0000000..5ee183b --- /dev/null +++ b/contextvm-ffi/tests/e2e_ffi_mock_relay.rs @@ -0,0 +1,474 @@ +//! End-to-end tests for ContextVM FFI using mock relay. +//! +//! These tests exercise actual message flow through FFI channels +//! using the mock relay implementation. + +use contextvm_ffi::{ + cvm_client_ch_recv_timeout, cvm_gateway_ch_recv_timeout, cvm_proxy_ch_recv_timeout, + cvm_server_ch_recv_timeout, + error::{ErrorCode, FfiError}, + handle::FfiHandle, + types::*, +}; +use std::ffi::{CStr, CString}; +use std::os::raw::c_char; +use std::ptr; + +// Helper to convert Rust string to C string (returns raw pointer) +fn to_c_str(s: &str) -> *mut c_char { + CString::new(s).unwrap().into_raw() +} + +// Helper to safely get string from C pointer +unsafe fn from_c_str(ptr: *const c_char) -> String { + if ptr.is_null() { + return String::new(); + } + CStr::from_ptr(ptr).to_str().unwrap_or("").to_string() +} + +/// Test that we can generate keys and they have valid format +#[test] +fn test_mock_relay_keys_generation() { + unsafe { + let mut error: *mut FfiError = ptr::null_mut(); + let keys = cvm_keys_generate(&mut error); + assert!(keys.id > 0, "Should generate valid keys handle"); + + let pubkey = cvm_keys_public_key(keys, &mut error); + assert!(!pubkey.is_null(), "Should return public key"); + + let pubkey_str = from_c_str(pubkey); + assert_eq!( + pubkey_str.len(), + 64, + "Public key should be 64 hex characters" + ); + + // Verify it's valid hex + assert!( + pubkey_str.chars().all(|c| c.is_ascii_hexdigit()), + "Public key should be valid hex" + ); + + // Cleanup + cvm_string_free(pubkey); + cvm_keys_free(keys); + } +} + +/// Test server config validation +#[test] +fn test_mock_relay_server_config_validation() { + // Create a server config with valid relay URLs + let relay_urls = vec![ + to_c_str("wss://mock.relay.1"), + to_c_str("wss://mock.relay.2"), + ]; + + let config = FfiServerConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 2, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_announced_server: false, + server_name: ptr::null_mut(), + server_version: ptr::null_mut(), + server_picture: ptr::null_mut(), + server_about: ptr::null_mut(), + server_website: ptr::null_mut(), + allowed_pubkeys: ptr::null_mut(), + allowed_pubkey_count: 0, + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: ptr::null_mut(), + excluded_capability_count: 0, + max_sessions: 0, + request_timeout_secs: 0, + relay_list_urls: ptr::null_mut(), + relay_list_url_count: 0, + bootstrap_relay_urls: ptr::null_mut(), + bootstrap_relay_url_count: 0, + publish_relay_list: false, + profile_metadata_json: ptr::null_mut(), + }; + + // Verify config is correctly structured + assert_eq!(config.relay_url_count, 2); + assert_eq!(config.encryption_mode, ENCRYPTION_MODE_OPTIONAL); + assert_eq!(config.session_timeout_secs, 300); + + // Cleanup + for url in relay_urls { + cvm_string_free(url); + } +} + +/// Test client config validation +#[test] +fn test_mock_relay_client_config_validation() { + let server_pubkey = + to_c_str("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"); + let relay_urls = vec![to_c_str("wss://mock.relay")]; + + let config = FfiClientConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + server_pubkey, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_stateless: false, + timeout_secs: 30, + discovery_relay_urls: ptr::null_mut(), + discovery_relay_url_count: 0, + fallback_operational_relay_urls: ptr::null_mut(), + fallback_operational_relay_url_count: 0, + }; + + assert_eq!(config.relay_url_count, 1); + assert_eq!(config.timeout_secs, 30); + + // Cleanup + cvm_string_free(server_pubkey); + for url in relay_urls { + cvm_string_free(url); + } +} + +/// Test message structure conversion +#[test] +fn test_mock_relay_message_structure() { + unsafe { + // Test JSON-RPC request message + let id = to_c_str("req-test-123"); + let payload = + to_c_str(r#"{"jsonrpc":"2.0","id":"req-test-123","method":"tools/list","params":{}}"#); + let method = to_c_str("tools/list"); + + let msg = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_REQUEST, + id, + payload_json: payload, + method, + }; + + assert_eq!(msg.msg_type, JSON_RPC_TYPE_REQUEST); + + let id_str = from_c_str(msg.id); + assert_eq!(id_str, "req-test-123"); + + let payload_str = from_c_str(msg.payload_json); + assert!(payload_str.contains("tools/list")); + assert!(payload_str.contains("jsonrpc")); + + // Cleanup + cvm_message_free(msg); + + // Test JSON-RPC response message + let id2 = to_c_str("42"); + let payload2 = to_c_str(r#"{"jsonrpc":"2.0","id":42,"result":{"tools":[]}}"#); + + let msg2 = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_RESPONSE, + id: id2, + payload_json: payload2, + method: ptr::null_mut(), + }; + + assert_eq!(msg2.msg_type, JSON_RPC_TYPE_RESPONSE); + cvm_message_free(msg2); + + // Test JSON-RPC error response + let id3 = to_c_str("99"); + let payload3 = to_c_str( + r#"{"jsonrpc":"2.0","id":99,"error":{"code":-32600,"message":"Invalid Request"}}"#, + ); + + let msg3 = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_ERROR_RESPONSE, + id: id3, + payload_json: payload3, + method: ptr::null_mut(), + }; + + assert_eq!(msg3.msg_type, JSON_RPC_TYPE_ERROR_RESPONSE); + cvm_message_free(msg3); + + // Test notification (no id) + let payload4 = + to_c_str(r#"{"jsonrpc":"2.0","method":"notifications/initialized","params":{}}"#); + let method4 = to_c_str("notifications/initialized"); + + let msg4 = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_NOTIFICATION, + id: ptr::null_mut(), + payload_json: payload4, + method: method4, + }; + + assert_eq!(msg4.msg_type, JSON_RPC_TYPE_NOTIFICATION); + cvm_message_free(msg4); + } +} + +/// Test incoming request structure +#[test] +fn test_mock_relay_incoming_request_structure() { + unsafe { + let client_pubkey = + to_c_str("aabbccdd00112233aabbccdd00112233aabbccdd00112233aabbccdd00112233"); + let event_id = to_c_str("event123456789"); + + let msg = FfiJsonRpcMessage { + msg_type: JSON_RPC_TYPE_REQUEST, + id: to_c_str("1"), + payload_json: to_c_str(r#"{"jsonrpc":"2.0","id":1,"method":"test"}"#), + method: to_c_str("test"), + }; + + let req = FfiIncomingRequest { + message: msg, + client_pubkey, + event_id, + is_encrypted: true, + }; + + assert!(req.is_encrypted); + + let client_str = from_c_str(req.client_pubkey); + assert_eq!(client_str.len(), 64); + + // Cleanup + cvm_incoming_request_free(req); + } +} + +/// Test error handling with various error codes +#[test] +fn test_mock_relay_error_handling() { + // Test error codes + let error_codes = vec![ + (ErrorCode::Ok as i32, "OK"), + (ErrorCode::Transport as i32, "Transport"), + (ErrorCode::Encryption as i32, "Encryption"), + (ErrorCode::Decryption as i32, "Decryption"), + (ErrorCode::Timeout as i32, "Timeout"), + (ErrorCode::Validation as i32, "Validation"), + (ErrorCode::Unauthorized as i32, "Unauthorized"), + (ErrorCode::Serialization as i32, "Serialization"), + (ErrorCode::Other as i32, "Other"), + ]; + + for (code, name) in error_codes { + println!("Error code {}: {}", code, name); + } + + // Test freeing null error (should not crash) + cvm_error_free(ptr::null_mut()); +} + +/// Test channel handle invalidation (timeout functions with bad handles) +#[test] +fn test_mock_relay_channel_invalid_handles() { + let invalid_handle = FfiHandle { id: 99999 }; + + // Test all channel recv_timeout functions with invalid handle + let mut error: *mut FfiError = ptr::null_mut(); + let mut out_req = std::mem::MaybeUninit::::uninit(); + let mut out_msg = std::mem::MaybeUninit::::uninit(); + + // Server channel + let result = cvm_server_ch_recv_timeout(invalid_handle, 1, out_req.as_mut_ptr(), &mut error); + assert!(!result); + assert!(!error.is_null()); + cvm_error_free(error); + error = ptr::null_mut(); + + // Client channel + let result = cvm_client_ch_recv_timeout(invalid_handle, 1, out_msg.as_mut_ptr(), &mut error); + assert!(!result); + assert!(!error.is_null()); + cvm_error_free(error); + error = ptr::null_mut(); + + // Gateway channel + let result = cvm_gateway_ch_recv_timeout(invalid_handle, 1, out_req.as_mut_ptr(), &mut error); + assert!(!result); + assert!(!error.is_null()); + cvm_error_free(error); + error = ptr::null_mut(); + + // Proxy channel + let result = cvm_proxy_ch_recv_timeout(invalid_handle, 1, out_msg.as_mut_ptr(), &mut error); + assert!(!result); + assert!(!error.is_null()); + cvm_error_free(error); +} + +/// Test peer capabilities structure +#[test] +fn test_mock_relay_peer_capabilities() { + // Create a peer capabilities structure + let caps = FfiPeerCapabilities { + supports_encryption: true, + supports_ephemeral_encryption: true, + supports_oversized_transfer: false, + }; + + assert!(caps.supports_encryption); + assert!(caps.supports_ephemeral_encryption); + assert!(!caps.supports_oversized_transfer); + + // Copy is safe (no pointers) + let caps2 = caps; + assert!(caps2.supports_encryption); +} + +/// Test multiple sequential operations +#[test] +fn test_mock_relay_sequential_operations() { + unsafe { + // Generate multiple keys + let mut keys = Vec::new(); + for _ in 0..5 { + let mut error: *mut FfiError = ptr::null_mut(); + let k = cvm_keys_generate(&mut error); + assert!(k.id > 0); + keys.push(k); + } + + // Verify all handles are unique + let unique_count = keys + .iter() + .map(|k| k.id) + .collect::>() + .len(); + assert_eq!(unique_count, keys.len()); + + // Get pubkeys for all + let mut pubkeys = Vec::new(); + for k in &keys { + let mut error: *mut FfiError = ptr::null_mut(); + let pk = cvm_keys_public_key(*k, &mut error); + assert!(!pk.is_null()); + pubkeys.push(pk); + } + + // Verify all pubkeys are unique + let pubkey_strings: Vec = pubkeys.iter().map(|&pk| from_c_str(pk)).collect(); + let unique_pubkeys = pubkey_strings + .iter() + .collect::>() + .len(); + assert_eq!(unique_pubkeys, pubkey_strings.len()); + + // Cleanup + for pk in pubkeys { + cvm_string_free(pk); + } + for k in keys { + cvm_keys_free(k); + } + } +} + +/// Test discovered tool structure +#[test] +fn test_mock_relay_discovered_tool_structure() { + unsafe { + let provider_pubkey = + to_c_str("0011223300112233001122330011223300112233001122330011223300112233"); + let provider_display_name = to_c_str("Test Provider"); + let tool_name = to_c_str("echo"); + let description = to_c_str("Echo a message back"); + let schema_json = + to_c_str(r#"{"type":"object","properties":{"message":{"type":"string"}}}"#); + + let tool = FfiDiscoveredTool { + provider_pubkey, + provider_display_name, + provider_name: ptr::null_mut(), + provider_about: ptr::null_mut(), + provider_picture: ptr::null_mut(), + provider_nip05: ptr::null_mut(), + tool_name, + description, + schema_json, + }; + + let name_str = from_c_str(tool.tool_name); + assert_eq!(name_str, "echo"); + + let desc_str = from_c_str(tool.description); + assert_eq!(desc_str, "Echo a message back"); + + // Cleanup - manually free strings (don't use cvm_discovered_tools_free on stack data) + cvm_string_free(tool.provider_pubkey); + cvm_string_free(tool.provider_display_name); + cvm_string_free(tool.tool_name); + cvm_string_free(tool.description); + cvm_string_free(tool.schema_json); + } +} + +/// Test server announcement structure +#[test] +fn test_mock_relay_server_announcement_structure() { + unsafe { + let pubkey = to_c_str("0011223300112233001122330011223300112233001122330011223300112233"); + let name = to_c_str("Test Server"); + let version = to_c_str("1.0.0"); + let event_id = to_c_str("event12345"); + + let announcement = FfiServerAnnouncement { + pubkey, + name, + version, + picture: ptr::null_mut(), + about: ptr::null_mut(), + website: ptr::null_mut(), + event_id, + }; + + let name_str = from_c_str(announcement.name); + assert_eq!(name_str, "Test Server"); + + let version_str = from_c_str(announcement.version); + assert_eq!(version_str, "1.0.0"); + + // Cleanup - manually free strings + cvm_string_free(announcement.pubkey); + cvm_string_free(announcement.name); + cvm_string_free(announcement.version); + cvm_string_free(announcement.event_id); + } +} + +/// Test provider profile structure +#[test] +fn test_mock_relay_provider_profile_structure() { + unsafe { + let pubkey = to_c_str("0011223300112233001122330011223300112233001122330011223300112233"); + let name = to_c_str("Test Provider"); + let about = to_c_str("A test provider for ContextVM"); + + let profile = FfiProviderProfile { + pubkey, + name, + about, + picture: ptr::null_mut(), + nip05: ptr::null_mut(), + }; + + let name_str = from_c_str(profile.name); + assert_eq!(name_str, "Test Provider"); + + let about_str = from_c_str(profile.about); + assert_eq!(about_str, "A test provider for ContextVM"); + + // Cleanup - manually free strings + cvm_string_free(profile.pubkey); + cvm_string_free(profile.name); + cvm_string_free(profile.about); + } +} diff --git a/contextvm-ffi/tests/e2e_ffi_nak_relay.rs b/contextvm-ffi/tests/e2e_ffi_nak_relay.rs new file mode 100644 index 0000000..6daf2ed --- /dev/null +++ b/contextvm-ffi/tests/e2e_ffi_nak_relay.rs @@ -0,0 +1,425 @@ +//! End-to-end tests using nak relay simulation. +//! +//! These tests use `nak serve` to start an actual in-memory relay +//! and test real message flow through the FFI bindings. + +use contextvm_ffi::{ + cvm_client_ch_close, cvm_client_ch_new, cvm_client_ch_recv_timeout, cvm_client_ch_send, + cvm_keys_free, cvm_keys_generate, cvm_keys_public_key, cvm_server_ch_announce, + cvm_server_ch_close, cvm_server_ch_new, cvm_server_ch_recv_timeout, cvm_string_free, + error::FfiError, types::*, +}; +use std::ffi::{CStr, CString}; +use std::os::raw::c_char; +use std::process::{Child, Command, Stdio}; +use std::ptr; +use std::thread; +use std::time::Duration; + +// Helper to convert Rust string to C string +fn to_c_str(s: &str) -> *mut c_char { + CString::new(s).unwrap().into_raw() +} + +// Helper to safely get string from C pointer +unsafe fn from_c_str(ptr: *const c_char) -> String { + if ptr.is_null() { + return String::new(); + } + CStr::from_ptr(ptr).to_str().unwrap_or("").to_string() +} + +/// Manages a nak relay process for testing +struct NakRelay { + process: Child, + url: String, +} + +impl NakRelay { + /// Start a nak relay on a random available port + fn start() -> Self { + // Try ports in a range to find an available one + for port in 33333..33400 { + let url = format!("ws://127.0.0.1:{}", port); + + // Start nak serve + let child = Command::new("nak") + .args([ + "serve", + "--hostname", + "127.0.0.1", + "--port", + &port.to_string(), + ]) + .stdout(Stdio::null()) + .stderr(Stdio::null()) + .spawn(); + + match child { + Ok(process) => { + // Wait a moment for the relay to start + thread::sleep(Duration::from_millis(500)); + + // Try to verify the relay is accepting connections + let test_url = url.clone(); + if Self::check_relay_ready(&test_url) { + return NakRelay { process, url }; + } else { + // Relay didn't start, try next port + continue; + } + } + Err(_) => continue, // Port might be in use, try next + } + } + + panic!("Could not start nak relay on any port"); + } + + /// Check if relay is ready by attempting a connection + fn check_relay_ready(_url: &str) -> bool { + // For now, just assume it's ready after the sleep + // In production, we might want to do a proper health check + true + } + + fn url(&self) -> &str { + &self.url + } +} + +impl Drop for NakRelay { + fn drop(&mut self) { + // Kill the nak process + let _ = self.process.kill(); + let _ = self.process.wait(); + } +} + +/// Test that nak relay can be started and stopped +#[test] +fn test_nak_relay_lifecycle() { + let relay = NakRelay::start(); + println!("Started nak relay at: {}", relay.url()); + // Relay will be stopped when dropped +} + +/// Test server channel creation with nak relay +#[test] +fn test_nak_server_channel_creation() { + let relay = NakRelay::start(); + let relay_url = relay.url(); + + unsafe { + let mut error: *mut FfiError = ptr::null_mut(); + + // Generate server keys + let server_keys = cvm_keys_generate(&mut error); + assert!(server_keys.id > 0, "Should generate server keys"); + + let server_pubkey = cvm_keys_public_key(server_keys, &mut error); + assert!(!server_pubkey.is_null()); + println!("Server pubkey: {}", from_c_str(server_pubkey)); + cvm_string_free(server_pubkey); + + // Create server config with nak relay + let relay_urls = vec![to_c_str(relay_url)]; + + let config = FfiServerConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_announced_server: false, + server_name: to_c_str("Test Server"), + server_version: to_c_str("1.0.0"), + server_picture: ptr::null_mut(), + server_about: to_c_str("Test server for nak E2E"), + server_website: ptr::null_mut(), + allowed_pubkeys: ptr::null_mut(), + allowed_pubkey_count: 0, + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: ptr::null_mut(), + excluded_capability_count: 0, + max_sessions: 0, + request_timeout_secs: 30, + relay_list_urls: ptr::null_mut(), + relay_list_url_count: 0, + bootstrap_relay_urls: ptr::null_mut(), + bootstrap_relay_url_count: 0, + publish_relay_list: false, + profile_metadata_json: ptr::null_mut(), + }; + + // Create server channel + let server_handle = cvm_server_ch_new(server_keys, config, &mut error); + + // Note: server_ch_new might fail if relay is not ready, that's OK for this test + if server_handle.id > 0 { + println!( + "Server channel created successfully: handle {}", + server_handle.id + ); + + // Try to announce + let announce_result = cvm_server_ch_announce(server_handle, &mut error); + println!("Server announce result: {}", announce_result); + + // Close the server channel + let close_result = cvm_server_ch_close(server_handle, &mut error); + assert!(close_result, "Should close server channel"); + } else { + println!("Server channel creation returned invalid handle (relay might not be ready)"); + } + + // Cleanup + for url in relay_urls { + cvm_string_free(url); + } + cvm_keys_free(server_keys); + } +} + +/// Test client channel creation with nak relay +#[test] +fn test_nak_client_channel_creation() { + let relay = NakRelay::start(); + let relay_url = relay.url(); + + let mut error: *mut FfiError = ptr::null_mut(); + + // Generate client keys + let client_keys = cvm_keys_generate(&mut error); + assert!(client_keys.id > 0, "Should generate client keys"); + + // Generate a mock server pubkey + let server_pubkey_str = "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"; + + // Create client config + let relay_urls = vec![to_c_str(relay_url)]; + let server_pubkey = to_c_str(server_pubkey_str); + + let config = FfiClientConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + server_pubkey, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_stateless: false, + timeout_secs: 30, + discovery_relay_urls: ptr::null_mut(), + discovery_relay_url_count: 0, + fallback_operational_relay_urls: ptr::null_mut(), + fallback_operational_relay_url_count: 0, + }; + + // Create client channel + let client_handle = cvm_client_ch_new(client_keys, config, &mut error); + + if client_handle.id > 0 { + println!( + "Client channel created successfully: handle {}", + client_handle.id + ); + + // Try to send a message + let payload = to_c_str(r#"{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}"#); + let send_result = cvm_client_ch_send(client_handle, payload, &mut error); + println!("Client send result: {}", send_result); + cvm_string_free(payload); + + // Try to receive with short timeout + let mut out_msg = std::mem::MaybeUninit::::uninit(); + let recv_result = + cvm_client_ch_recv_timeout(client_handle, 2, out_msg.as_mut_ptr(), &mut error); + println!( + "Client recv result: {} (expected false - no server)", + recv_result + ); + + // Close the client channel + let close_result = cvm_client_ch_close(client_handle, &mut error); + assert!(close_result, "Should close client channel"); + } else { + println!("Client channel creation returned invalid handle"); + } + + // Cleanup + for url in relay_urls { + cvm_string_free(url); + } + cvm_string_free(server_pubkey); + cvm_keys_free(client_keys); +} + +/// Test full server-client message flow through nak relay +#[test] +fn test_nak_server_client_message_flow() { + let relay = NakRelay::start(); + let relay_url = relay.url(); + + unsafe { + let mut error: *mut FfiError = ptr::null_mut(); + + // Generate keys for both sides + let server_keys = cvm_keys_generate(&mut error); + let client_keys = cvm_keys_generate(&mut error); + + assert!(server_keys.id > 0, "Should generate server keys"); + assert!(client_keys.id > 0, "Should generate client keys"); + + let server_pubkey = cvm_keys_public_key(server_keys, &mut error); + let server_pubkey_str = from_c_str(server_pubkey); + println!("Server pubkey: {}", server_pubkey_str); + + // Create server config + let relay_urls = vec![to_c_str(relay_url)]; + let server_config = FfiServerConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_announced_server: true, + server_name: to_c_str("E2E Test Server"), + server_version: to_c_str("1.0.0"), + server_picture: ptr::null_mut(), + server_about: to_c_str("Server for E2E test"), + server_website: ptr::null_mut(), + allowed_pubkeys: ptr::null_mut(), + allowed_pubkey_count: 0, + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: ptr::null_mut(), + excluded_capability_count: 0, + max_sessions: 0, + request_timeout_secs: 30, + relay_list_urls: ptr::null_mut(), + relay_list_url_count: 0, + bootstrap_relay_urls: ptr::null_mut(), + bootstrap_relay_url_count: 0, + publish_relay_list: false, + profile_metadata_json: ptr::null_mut(), + }; + + // Create client config + let server_pubkey_c = to_c_str(&server_pubkey_str); + let client_config = FfiClientConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + server_pubkey: server_pubkey_c, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_stateless: false, + timeout_secs: 30, + discovery_relay_urls: ptr::null_mut(), + discovery_relay_url_count: 0, + fallback_operational_relay_urls: ptr::null_mut(), + fallback_operational_relay_url_count: 0, + }; + + // Create channels + let server_handle = cvm_server_ch_new(server_keys, server_config, &mut error); + let client_handle = cvm_client_ch_new(client_keys, client_config, &mut error); + + println!( + "Server handle: {}, Client handle: {}", + server_handle.id, client_handle.id + ); + + if server_handle.id > 0 && client_handle.id > 0 { + // Announce server + let announce_result = cvm_server_ch_announce(server_handle, &mut error); + println!("Server announce: {}", announce_result); + + // Give time for announcement + thread::sleep(Duration::from_millis(1000)); + + // Try server recv (might get initialization request) + let mut out_req = std::mem::MaybeUninit::::uninit(); + let recv_result = + cvm_server_ch_recv_timeout(server_handle, 2, out_req.as_mut_ptr(), &mut error); + println!("Server recv: {}", recv_result); + + if recv_result { + // We got a request, could send response + println!("Server received request!"); + } + + // Close channels + let _ = cvm_server_ch_close(server_handle, &mut error); + let _ = cvm_client_ch_close(client_handle, &mut error); + } + + // Cleanup + for url in relay_urls { + cvm_string_free(url); + } + cvm_string_free(server_pubkey); + cvm_string_free(server_pubkey_c); + cvm_keys_free(server_keys); + cvm_keys_free(client_keys); + } +} + +/// Test multiple concurrent connections to nak relay +#[test] +fn test_nak_multiple_connections() { + let relay = NakRelay::start(); + let relay_url = relay.url(); + + let mut error: *mut FfiError = ptr::null_mut(); + + // Create multiple server channels + let mut handles = Vec::new(); + + for i in 0..3 { + let keys = cvm_keys_generate(&mut error); + assert!(keys.id > 0); + + let relay_urls = vec![to_c_str(relay_url)]; + let config = FfiServerConfig { + relay_urls: relay_urls.as_ptr() as *mut *mut c_char, + relay_url_count: 1, + encryption_mode: ENCRYPTION_MODE_OPTIONAL, + gift_wrap_mode: GIFT_WRAP_MODE_OPTIONAL, + is_announced_server: false, + server_name: to_c_str(&format!("Test Server {}", i)), + server_version: to_c_str("1.0.0"), + server_picture: ptr::null_mut(), + server_about: ptr::null_mut(), + server_website: ptr::null_mut(), + allowed_pubkeys: ptr::null_mut(), + allowed_pubkey_count: 0, + session_timeout_secs: 300, + cleanup_interval_secs: 60, + excluded_capabilities: ptr::null_mut(), + excluded_capability_count: 0, + max_sessions: 0, + request_timeout_secs: 30, + relay_list_urls: ptr::null_mut(), + relay_list_url_count: 0, + bootstrap_relay_urls: ptr::null_mut(), + bootstrap_relay_url_count: 0, + publish_relay_list: false, + profile_metadata_json: ptr::null_mut(), + }; + + let handle = cvm_server_ch_new(keys, config, &mut error); + if handle.id > 0 { + handles.push((handle, keys, relay_urls)); + println!("Created server {}: handle {}", i, handle.id); + } + } + + // Close all channels + for (handle, keys, urls) in handles { + let _ = cvm_server_ch_close(handle, &mut error); + cvm_keys_free(keys); + for url in urls { + cvm_string_free(url); + } + } + + println!("Successfully tested {} concurrent server connections", 3); +} From 1f9bdb7ab367ce09bdf70d794c2f9eceefaf6c5d Mon Sep 17 00:00:00 2001 From: ContextVM Date: Fri, 19 Jun 2026 12:58:29 +0200 Subject: [PATCH 107/116] fix(ffi): cover SDK OversizedTransfer error variant Rebasing onto main pulled in CEP-22, which added `contextvm_sdk::Error::OversizedTransfer`. The non-exhaustive match in `ErrorCode::from(&Error)` failed to compile. Map the new variant to `ErrorCode::Transport`, since oversized-transfer failures are transport-layer framing/reassembly issues and the C header exposes no dedicated code. --- contextvm-ffi/src/error.rs | 3 +++ 1 file changed, 3 insertions(+) diff --git a/contextvm-ffi/src/error.rs b/contextvm-ffi/src/error.rs index 413b331..ba333a9 100644 --- a/contextvm-ffi/src/error.rs +++ b/contextvm-ffi/src/error.rs @@ -36,6 +36,9 @@ impl From<&contextvm_sdk::Error> for ErrorCode { contextvm_sdk::Error::Validation(_) => ErrorCode::Validation, contextvm_sdk::Error::Unauthorized(_) => ErrorCode::Unauthorized, contextvm_sdk::Error::Serialization(_) => ErrorCode::Serialization, + // CEP-22 oversized-transfer failures are transport-layer + // framing/reassembly issues, so they surface as CVM_TRANSPORT. + contextvm_sdk::Error::OversizedTransfer(_) => ErrorCode::Transport, contextvm_sdk::Error::Other(_) => ErrorCode::Other, } } From 63fd4ebfed1418de16a909ad078ea0d877c35a7c Mon Sep 17 00:00:00 2001 From: ContextVM Date: Fri, 19 Jun 2026 12:58:44 +0200 Subject: [PATCH 108/116] =?UTF-8?q?fix(ffi):=20address=20review=20?= =?UTF-8?q?=E2=80=94=20gate=20nak=20tests,=20drop=20committed=20binary,=20?= =?UTF-8?q?harden=20docs?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit CI / build hygiene - Feature-gate the nak relay e2e suite behind `nak-tests` (Cargo `[[test]]` required-features) so default `cargo test` and CI's `cargo test --all-features` no longer require the external `nak` binary. The tests additionally no-op at runtime when `nak` is absent from PATH (clear stderr note), so `--all-features` stays green without it; with `nak` present they run for real. - Replace the fake `check_relay_ready()` stub (always returned true) with a real TCP connect probe, and surface a `nak`-not-found failure explicitly instead of masking it as a port conflict. - Stop tracking the compiled `c-tests/test_ffi` ELF; the Makefile rebuilds it from `test_ffi.c`, and it is now gitignored. Docs / API surface - headers/contextvm.h: document that `*_ch_recv_timeout(timeout_secs = 0)` is a try-recv (returns immediately), closing the non-blocking-poll gap without new symbols. - lib.rs: mark the test-only re-exports `#[doc(hidden)]` so the published rustdoc surface reflects the real API, not the test plumbing. - Correct misleading module docs in the FFI integration tests: happy_path / mock_relay describe themselves as lifecycle/structure suites (they spin up no relay); only e2e_ffi_nak_relay drives real message flow. --- contextvm-ffi/.gitignore | 3 + contextvm-ffi/Cargo.toml | 10 ++ contextvm-ffi/c-tests/test_ffi | Bin 27720 -> 0 bytes contextvm-ffi/headers/contextvm.h | 4 + contextvm-ffi/src/lib.rs | 10 +- contextvm-ffi/tests/e2e_ffi_happy_path.rs | 8 +- contextvm-ffi/tests/e2e_ffi_mock_relay.rs | 8 +- contextvm-ffi/tests/e2e_ffi_nak_relay.rs | 109 ++++++++++++++++++---- 8 files changed, 125 insertions(+), 27 deletions(-) delete mode 100755 contextvm-ffi/c-tests/test_ffi diff --git a/contextvm-ffi/.gitignore b/contextvm-ffi/.gitignore index e33a057..ca32551 100644 --- a/contextvm-ffi/.gitignore +++ b/contextvm-ffi/.gitignore @@ -1,3 +1,6 @@ /target __pycache__/ *.py[cod] + +# C test binary built by c-tests/Makefile +c-tests/test_ffi diff --git a/contextvm-ffi/Cargo.toml b/contextvm-ffi/Cargo.toml index acc5990..310cb4c 100644 --- a/contextvm-ffi/Cargo.toml +++ b/contextvm-ffi/Cargo.toml @@ -19,3 +19,13 @@ parking_lot = "0.12" [features] default = [] +# End-to-end tests that spawn the `nak` CLI relay (https://github.com/nbd-wtf/nostr-cli). +# Off by default so `cargo test` and CI's `cargo test --all --all-features` don't +# require `nak` to be installed. When enabled but `nak` is absent from PATH, the +# tests no-op with a stderr note instead of failing. +nak-tests = [] + +# `nak` is an external process; only build this test target when explicitly opted in. +[[test]] +name = "e2e_ffi_nak_relay" +required-features = ["nak-tests"] diff --git a/contextvm-ffi/c-tests/test_ffi b/contextvm-ffi/c-tests/test_ffi deleted file mode 100755 index a25bcb596cd619f5613b730555dc18d6e11da6c2..0000000000000000000000000000000000000000 GIT binary patch literal 0 HcmV?d00001 literal 27720 zcmeHweSB2ang6*nxye9)gqJ`7EdzprlF17%1vMH76DCSX2#EzPJ4|LK$!IbY=Y_XQ zp$4`_nl7|kYj7F4IeD28U;DlI~Zb)+3ViDwJM@($k^P z@+#E+B%jbEZ0GQ+g!}C9pO8oXSs!I=?m0BY*y-SH2Rg*ZB=of2WlHb*S4XzZ_ zh^O2uY&#{LDL+Z2ll;{`T(L*obR@6$<}a+fxpB?%+iu#tv$!qPw0L20TcD^d6i#d@ z+OlME(c*=!Sj1Jv&7lDLgeS}S8N`Gj9$l{nUul=Iq3<_9QFZk}0)*!r#F4}w5ey|? zH4OjXhvAc-o%pj}lZUZqJ_MasVbK4EzoG28V;KJKVfZJ9;pYuw&xgavyN8kAH;nvK z!|*R32It@~@}C%nUksdCNW0|ndRy8fVQ(z%i^jcP;jM0{@dkp?U`r?#4@MhmD%&FA zV1uuzEhy85O!04O_qGRPF<(p2+Z+uB1u^ajZjE_65>0I(KgF5X5shrw>h-sJqe1^B zZ#>i&JXpSL*__O*q! z0R-^zW)kmiVn1eEm!yen$qM=LN*XwIzeE9_`HEnZbucQ`bEid^Pppw7nVp z+?2Es_h<0OWbhAU@KJ%O>!A$(xD;22LmB+M4E~V}zHTFw+>^l{pCNxTgRhzbr=H5- z)AMQM8u7r02Sz+F;(@;|54@N6u@5|*Z#z7D%olGI!n3<4ZcCo>biUwto(q~>Gz;wH zoY}bN&8QG0-%2Tc=aR`}^IoRuLEQIRnx+Xs-*ai29>{%eDnmi2IhOX?g(nm8EHV@b=A0)AYdYn~fbj{*8scV4;6*p-)@rS1j~# z3;m3Re!@aOVxb?j&|kCA_YI;;e_h@6>fd;}&UrfD?5}HZm-dvt=;b24Y~GBWB=@`uAs=G-MNJgU`_R+X z?|Jq&H+r5OuzQT-o>xDNPXfT@3c!&(EB&nXseSG&pMzwPxTew5S^mNGh`JS%r1D>u#zo&D1zldjh_PF~m z=AcMV;%k*>Pt5>~ew?CR&w09DIYPzhef>|#eoJbSX{%w=ob1EoEl6YjGl z>gjf$^>m%+odvTzUG83>_rf=ck9)eu1_`y>j379=fHhx%sLUaX9QK$it{0-S$LKPz zL!|FG<29aTjIPrJd!2-pwkH+>^kxYhKUO?nxoXSg36-e}S4phVm zWs*dBeL7HhPcrS>8sz|?xEQ6o;9V$qx{iCg-st@bnWnJchl;fNMDG^LXODXz z;JHRREN=GB2Jg?h^MSuL1l-ySbKtf{awS~LZdgc|UGDz9R^aa;<3YgraQJ#Q5~Wtw z-AC4Sxd+ey1_V2?h9tVpA5BB?*I0^w=0B+T|9q`-;@1(m_zBORMuI~-VtWEWL=@ocB&o-aPkN{Pn}SHvmb3Z$OZnR=0UU zv0jiYk~*VUhb3!(;Z*~CfzrCo-%N#VO%~hU{eX)3{8ClSqlok!B^lL#scc`A`j3#l z-=cq*^*goxHbgFN=ghkcR?DWXH7C)?P64gw8G0g; zr^|tq_e4*Z`{~Z@PYbTz7hx@2c(4#gM_DZ0hadSPxo{`?5BK5Ch+JF>z>_pMmT&~1 zM;{0NOigOr)3K!=gMEZUN*FgWQ*6)QMP?Y_o{~3$^1FV0i z)^8>KFR^~(8OB)p91n|!CB{0!xZ8qp8)Fn{jM;>-hA?DRol*U7wk%q&VxLv)v64-r zWv}48Zk2hxJsEj@){@sdf1vU{i%;TQ-Xn5jS=#lJt@Q4fH8DAiHF_Iucdj;d4-L6ye4Q_Xp&sfW9jvip#y ztMLeErS0wkeG+*%@VCU%1<{&Ao;@3mc)A>(u5}m?YI;DP^mKVJAgn6{eF`*+?Qw#h z3mZ`Ex{}^!Wd0S%XTw0cu%6GnozG3|OBI+o9HFv41?LJp%Af>+=frLg0^neX**yShj_zSD9=isQCYPb^(F8W&8_m)0a~A3DxAAw>9Lum` z!p(6WA{TG;>|rbhC_@{vOMuG=;1vtN3S!JwD% zG3n?JEqFh8pA7oC#=9Spi_NH(fxIWgF4?5NCDpr0{dJ4_URH0?>g!4UDpE(|?Ib;J z((LZu0Ax7{t@9zo2ix7X{XcpB)@`=2-ih87B;RdzD{_$}A5`R(Ocp##WViW4=2B;r zc@4aW3FItl3f<;OrSU#^d(6kmlW;RQ}R(c2H+9`g|m@J$IYUIKjH0`NEiY@~6g+w4>Tk1{~J1_(%i zUP|pYYb*d!0-*U3(v~ZLFaylj09QzWCndlb3qUCW+#&%C1yIBQ7fX~6&LILH+${mV zhen#|gZ_5`FdzYXIPFC5+u&jDrvbh$0oF-?do2Ku62N|%TXvf}6u?0S2x)+g3}DVt z_H|QgK`oejOgATuy%tH-5q=;m<~B$GZr22|^+fL{8SY~c-QAP-Ko907vS-M_P`~w~ z&re^z@i-WmyjBZ!l|GLIO5oO; z;rUV(;)96NrA#KXd|9LX`5a>T5EChYy zFOtb62tR)|nOukPEreSTe&d(PLPv|e-7|7Hy~49RXOl1Q(me093L${-0!e;I!+_-Z}ERJyH>0Vw@#{Iwwc z*r4>sQt4xWYlClV2H~$r;m-%Z7(V~uApMt8`m2zB4(Va?ZOXo&P21Oo^pZD|N#5tI z)0eTja6;vCNS}uEUuELEJMFd~Nf|1`A;|m~GPEq3%ER{4lntkl{_wNp|HZSV)FdKNfku7zbqB~osIs}yOzsJ}H74|0EpfUiBU zcp)A-BiD!rMm#X$fe{brc(X*2-O>b0@F_JAOOo;2>_GCF_0(MXF zrGJ-&y?=bsoPjRvaN|q=K8v2Abm{cpeVD{755MoBha4{2N=?^*iqKYSx_VVQKf6Ki zQTFNICKa+&`gfy>n|s zo&U!aU&~=Noy&*pn1yXHOdnEs*de3SS+if!yHq+h6mYsKzC!=s3sS$!wm_DsNn?cy z>r}W=g&iu~slvS~JfOluD(q3=DHWboVZRE+c$sm&3Y{vnnDb{zN1YT|Sy_3lb8aKg zfSjd^TzHo*S|}$v3+E|@m=9Um5M(vY!(Iitev)eKlGgW5h?&A*;R*CJ<;(3WC(9b4 z_BWKexd|EA&QHP54n(#i=U-9(*;zR+QD8XU0z|egXFKXR+sN)?%FIWLH)(2XpEoIi zU}BbuA8A6_{57&N-v^$(Xgc9J{+>XM?0zWbQ{3^7#Bi9@Nz5N1o;7V^h*>#3$kF^g zbj|6LI*FB^^%{P@Fv?MR9@O|yK&%+YTiAqooXm0CUju(k6>imK(6vXYoc5=HVA!vM zi8gyZiB1Lq7dpdlE4? 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Use this for non-blocking + * polls instead of blocking worker-thread consumption. + * * ═══════════════════════════════════════════════════════════════════════════════ * MEMORY MANAGEMENT * ═══════════════════════════════════════════════════════════════════════════════ diff --git a/contextvm-ffi/src/lib.rs b/contextvm-ffi/src/lib.rs index 59b815a..629a481 100644 --- a/contextvm-ffi/src/lib.rs +++ b/contextvm-ffi/src/lib.rs @@ -24,7 +24,10 @@ mod runtime; pub mod types; mod uniffi_types; -// Public re-exports for integration testing +// Test-only re-exports. These expose flat-C-ABI symbols and internal modules so the +// `tests/` integration binaries can call them directly. They are `#[doc(hidden)]` to +// keep them out of the published rustdoc surface; do not rely on them as a stable API. +#[doc(hidden)] pub use channel::{ cvm_client_ch_close, cvm_client_ch_discovered_server_capabilities, cvm_client_ch_new, cvm_client_ch_recv, cvm_client_ch_recv_timeout, cvm_client_ch_send, @@ -40,10 +43,13 @@ pub use channel::{ cvm_server_ch_recv_timeout, cvm_server_ch_send_notification, cvm_server_ch_send_response, cvm_server_ch_set_announcement_extra_tags, cvm_server_ch_set_announcement_pricing_tags, }; +#[doc(hidden)] pub use error::{ErrorCode, FfiError}; +#[doc(hidden)] pub use handle::FfiHandle; -// Re-export types module functions for integration testing +// Re-export types module functions for integration testing (see note above). +#[doc(hidden)] pub use types::{ cvm_announcements_free, cvm_decrypt_nip44, cvm_discover_all_tools, cvm_discover_servers, cvm_discover_tools, cvm_discovered_tools_free, cvm_encrypt_nip44, cvm_error_code, diff --git a/contextvm-ffi/tests/e2e_ffi_happy_path.rs b/contextvm-ffi/tests/e2e_ffi_happy_path.rs index f471960..04dc69d 100644 --- a/contextvm-ffi/tests/e2e_ffi_happy_path.rs +++ b/contextvm-ffi/tests/e2e_ffi_happy_path.rs @@ -1,7 +1,9 @@ -//! End-to-end tests for ContextVM FFI bindings using mock relay. +//! Lifecycle and API-surface tests for the ContextVM FFI bindings. //! -//! These tests exercise the full FFI API surface with actual message flow -//! through the mock relay - no external network required. +//! These cover the non-network parts of the FFI contract: keys generation, +//! config struct layout, message struct conversion, constant values, and +//! memory-management edge cases (null-safe frees, multiple handles). Real +//! message flow is exercised in `e2e_ffi_nak_relay.rs`. use contextvm_ffi::error::{ErrorCode, FfiError}; use contextvm_ffi::handle::FfiHandle; diff --git a/contextvm-ffi/tests/e2e_ffi_mock_relay.rs b/contextvm-ffi/tests/e2e_ffi_mock_relay.rs index 5ee183b..2650cc9 100644 --- a/contextvm-ffi/tests/e2e_ffi_mock_relay.rs +++ b/contextvm-ffi/tests/e2e_ffi_mock_relay.rs @@ -1,7 +1,9 @@ -//! End-to-end tests for ContextVM FFI using mock relay. +//! Structure and validation tests for ContextVM FFI types. //! -//! These tests exercise actual message flow through FFI channels -//! using the mock relay implementation. +//! These verify the layout and round-trip conversion of the FFI structs +//! (configs, messages, announcements, profiles) plus channel handle error +//! paths — without any relay or network. Live message flow lives in +//! `e2e_ffi_nak_relay.rs`. use contextvm_ffi::{ cvm_client_ch_recv_timeout, cvm_gateway_ch_recv_timeout, cvm_proxy_ch_recv_timeout, diff --git a/contextvm-ffi/tests/e2e_ffi_nak_relay.rs b/contextvm-ffi/tests/e2e_ffi_nak_relay.rs index 6daf2ed..e6bd0e3 100644 --- a/contextvm-ffi/tests/e2e_ffi_nak_relay.rs +++ b/contextvm-ffi/tests/e2e_ffi_nak_relay.rs @@ -1,7 +1,10 @@ -//! End-to-end tests using nak relay simulation. +//! End-to-end tests driven by a real `nak serve` relay. //! -//! These tests use `nak serve` to start an actual in-memory relay -//! and test real message flow through the FFI bindings. +//! These tests spawn the `nak` CLI (https://github.com/nbd-wtf/nostr-cli) to run +//! an actual in-process relay and exercise real message flow through the FFI +//! bindings. They are gated behind the `nak-tests` feature and additionally +//! no-op when the `nak` binary is not on PATH, so they are safe under +//! `cargo test --all --all-features` without `nak` installed. use contextvm_ffi::{ cvm_client_ch_close, cvm_client_ch_new, cvm_client_ch_recv_timeout, cvm_client_ch_send, @@ -10,6 +13,7 @@ use contextvm_ffi::{ error::FfiError, types::*, }; use std::ffi::{CStr, CString}; +use std::net::TcpStream; use std::os::raw::c_char; use std::process::{Child, Command, Stdio}; use std::ptr; @@ -35,8 +39,37 @@ struct NakRelay { url: String, } +/// Returns true if the `nak` binary is available on PATH. +/// +/// The nak-tests target is feature-gated, but CI runs `cargo test --all-features`, +/// which enables it. To stay green without `nak` installed, tests call this and +/// no-op when the binary is absent. +fn nak_available() -> bool { + Command::new("nak") + .arg("--version") + .stdout(Stdio::null()) + .stderr(Stdio::null()) + .status() + .is_ok() +} + +/// Skip helper for tests that need `nak`. Prints a note and returns true if the +/// test should be skipped (binary absent), false if it should proceed. +fn skip_if_no_nak() -> bool { + if !nak_available() { + eprintln!( + "nak binary not found on PATH; skipping nak e2e test \ + (enable `nak-tests` and install nak to run it)" + ); + return true; + } + false +} + impl NakRelay { - /// Start a nak relay on a random available port + /// Start a nak relay on a random available port. + /// + /// Panics with an actionable message if `nak` cannot be launched. fn start() -> Self { // Try ports in a range to find an available one for port in 33333..33400 { @@ -56,31 +89,54 @@ impl NakRelay { .spawn(); match child { - Ok(process) => { - // Wait a moment for the relay to start - thread::sleep(Duration::from_millis(500)); - - // Try to verify the relay is accepting connections - let test_url = url.clone(); - if Self::check_relay_ready(&test_url) { + Ok(mut process) => { + // Probe the listener with a short TCP connect retry loop so + // we only proceed once nak is actually accepting sockets. + if Self::wait_for_relay(&url, Duration::from_secs(5)) { return NakRelay { process, url }; } else { - // Relay didn't start, try next port + // Relay didn't come up on this port; clean up and try next. + let _ = process.kill(); + let _ = process.wait(); continue; } } - Err(_) => continue, // Port might be in use, try next + Err(e) => { + // Most likely `nak` is not installed at all — surface that + // clearly rather than masking it as a port conflict. + if e.kind() == std::io::ErrorKind::NotFound { + panic!( + "`nak` binary not found on PATH; install it \ + (https://github.com/nbd-wtf/nostr-cli) or run without \ + the `nak-tests` feature" + ); + } + continue; // Transient launch failure; try next port. + } } } - panic!("Could not start nak relay on any port"); + panic!("Could not start nak relay on any port in 33333..33400"); } - /// Check if relay is ready by attempting a connection - fn check_relay_ready(_url: &str) -> bool { - // For now, just assume it's ready after the sleep - // In production, we might want to do a proper health check - true + /// Poll the relay address with a TCP connect until it succeeds or times out. + fn wait_for_relay(url: &str, deadline: Duration) -> bool { + let addr = url.trim_start_matches("ws://"); + let start = std::time::Instant::now(); + while start.elapsed() < deadline { + if TcpStream::connect_timeout( + &addr + .parse() + .unwrap_or_else(|_| "127.0.0.1:0".parse().unwrap()), + Duration::from_millis(200), + ) + .is_ok() + { + return true; + } + thread::sleep(Duration::from_millis(100)); + } + false } fn url(&self) -> &str { @@ -99,6 +155,9 @@ impl Drop for NakRelay { /// Test that nak relay can be started and stopped #[test] fn test_nak_relay_lifecycle() { + if skip_if_no_nak() { + return; + } let relay = NakRelay::start(); println!("Started nak relay at: {}", relay.url()); // Relay will be stopped when dropped @@ -107,6 +166,9 @@ fn test_nak_relay_lifecycle() { /// Test server channel creation with nak relay #[test] fn test_nak_server_channel_creation() { + if skip_if_no_nak() { + return; + } let relay = NakRelay::start(); let relay_url = relay.url(); @@ -184,6 +246,9 @@ fn test_nak_server_channel_creation() { /// Test client channel creation with nak relay #[test] fn test_nak_client_channel_creation() { + if skip_if_no_nak() { + return; + } let relay = NakRelay::start(); let relay_url = relay.url(); @@ -256,6 +321,9 @@ fn test_nak_client_channel_creation() { /// Test full server-client message flow through nak relay #[test] fn test_nak_server_client_message_flow() { + if skip_if_no_nak() { + return; + } let relay = NakRelay::start(); let relay_url = relay.url(); @@ -365,6 +433,9 @@ fn test_nak_server_client_message_flow() { /// Test multiple concurrent connections to nak relay #[test] fn test_nak_multiple_connections() { + if skip_if_no_nak() { + return; + } let relay = NakRelay::start(); let relay_url = relay.url(); From b01f183037bd6fdf40e131e88b85c9ec8a3f4428 Mon Sep 17 00:00:00 2001 From: Harsh Date: Tue, 23 Jun 2026 17:29:09 +0530 Subject: [PATCH 109/116] feat: CEP-41 - open-stream engine (frame, session, writer, registry, config) --- Cargo.toml | 3 + src/core/constants.rs | 3 + src/core/error.rs | 4 + src/core/types.rs | 4 + src/gateway/mod.rs | 1 + src/proxy/mod.rs | 1 + src/transport/client/mod.rs | 14 + src/transport/discovery_tags.rs | 21 + src/transport/mod.rs | 5 + src/transport/open_stream/constants.rs | 26 + src/transport/open_stream/errors.rs | 49 + src/transport/open_stream/frame.rs | 342 +++++++ src/transport/open_stream/mod.rs | 213 +++++ src/transport/open_stream/receiver.rs | 146 +++ src/transport/open_stream/registry.rs | 704 ++++++++++++++ src/transport/open_stream/session.rs | 1182 ++++++++++++++++++++++++ src/transport/open_stream/writer.rs | 685 ++++++++++++++ src/transport/server/mod.rs | 15 + src/transport/server/session_store.rs | 8 + 19 files changed, 3426 insertions(+) create mode 100644 src/transport/open_stream/constants.rs create mode 100644 src/transport/open_stream/errors.rs create mode 100644 src/transport/open_stream/frame.rs create mode 100644 src/transport/open_stream/mod.rs create mode 100644 src/transport/open_stream/receiver.rs create mode 100644 src/transport/open_stream/registry.rs create mode 100644 src/transport/open_stream/session.rs create mode 100644 src/transport/open_stream/writer.rs diff --git a/Cargo.toml b/Cargo.toml index df2ca99..2547043 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -28,6 +28,9 @@ hex = "0.4" thiserror = "2.0" async-trait = "0.1" +# Async stream/future primitives (CEP-41 open-stream `Stream` impl + boxed publish closures) +futures = "0.3" + # Nostr SDK with NIP-59 (Gift Wrap) support nostr-sdk = { version = "0.43", features = ["nip59"] } diff --git a/src/core/constants.rs b/src/core/constants.rs index 095d784..e06af99 100644 --- a/src/core/constants.rs +++ b/src/core/constants.rs @@ -67,6 +67,9 @@ pub mod tags { /// Support CEP-22 oversized payload transfer via notifications/progress framing pub const SUPPORT_OVERSIZED_TRANSFER: &str = "support_oversized_transfer"; + + /// Support CEP-41 open-ended streaming via notifications/progress framing + pub const SUPPORT_OPEN_STREAM: &str = "support_open_stream"; } /// Maximum message size (1MB) diff --git a/src/core/error.rs b/src/core/error.rs index 505a17d..5a70a81 100644 --- a/src/core/error.rs +++ b/src/core/error.rs @@ -38,6 +38,10 @@ pub enum Error { #[error("Oversized transfer error: {0}")] OversizedTransfer(#[from] crate::transport::oversized_transfer::OversizedTransferError), + /// CEP-41 open-stream error (sequencing/policy/abort) + #[error("Open stream error: {0}")] + OpenStream(#[from] crate::transport::open_stream::OpenStreamError), + /// Generic error #[error("{0}")] Other(String), diff --git a/src/core/types.rs b/src/core/types.rs index 5f329c2..b790e8a 100644 --- a/src/core/types.rs +++ b/src/core/types.rs @@ -202,6 +202,9 @@ pub struct ClientSession { pub supports_ephemeral_encryption: bool, /// Learned from client discovery tags: peer supports CEP-22 oversized transfer. pub supports_oversized_transfer: bool, + /// Learned from client discovery tags: peer supports CEP-41 open streams + /// (learned, gated by server config; data only until PR2 activation). + pub supports_open_stream: bool, /// Last activity timestamp. pub last_activity: Instant, /// Pending requests: event_id → original request ID. @@ -221,6 +224,7 @@ impl ClientSession { supports_encryption: false, supports_ephemeral_encryption: false, supports_oversized_transfer: false, + supports_open_stream: false, last_activity: Instant::now(), pending_requests: HashMap::new(), event_to_progress_token: HashMap::new(), diff --git a/src/gateway/mod.rs b/src/gateway/mod.rs index 789545a..ff6428a 100644 --- a/src/gateway/mod.rs +++ b/src/gateway/mod.rs @@ -144,6 +144,7 @@ mod tests { publish_relay_list: true, profile_metadata: None, oversized_transfer: Default::default(), + open_stream: Default::default(), }; let config = GatewayConfig { nostr_config }; diff --git a/src/proxy/mod.rs b/src/proxy/mod.rs index 7af69a1..c1bcecc 100644 --- a/src/proxy/mod.rs +++ b/src/proxy/mod.rs @@ -125,6 +125,7 @@ mod tests { discovery_relay_urls: None, fallback_operational_relay_urls: None, oversized_transfer: Default::default(), + open_stream: Default::default(), }; let config = ProxyConfig { nostr_config }; diff --git a/src/transport/client/mod.rs b/src/transport/client/mod.rs index a88473b..8e0abf2 100644 --- a/src/transport/client/mod.rs +++ b/src/transport/client/mod.rs @@ -30,6 +30,7 @@ use crate::encryption; use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; use crate::transport::discovery_tags::{parse_discovered_peer_capabilities, PeerCapabilities}; +use crate::transport::open_stream::OpenStreamConfig; use crate::transport::oversized_transfer::{ build_oversized_frames, progress_token_string, resolve_safe_chunk_size, send_oversized_transfer, OversizedFrame, OversizedSenderOptions, OversizedTransferConfig, @@ -68,6 +69,11 @@ pub struct NostrClientTransportConfig { pub fallback_operational_relay_urls: Option>, /// CEP-22 oversized payload transfer configuration. Enabled by default. pub oversized_transfer: OversizedTransferConfig, + /// CEP-41 open-stream configuration. Disabled by default (opt-in). + /// + /// **Data only in PR1** — the event loop does not consult it yet; activation + /// (capability advertisement, learning, `call_tool_stream`) lands in PR2. + pub open_stream: OpenStreamConfig, } impl Default for NostrClientTransportConfig { @@ -82,6 +88,7 @@ impl Default for NostrClientTransportConfig { discovery_relay_urls: None, fallback_operational_relay_urls: None, oversized_transfer: OversizedTransferConfig::default(), + open_stream: OpenStreamConfig::default(), } } } @@ -137,6 +144,13 @@ impl NostrClientTransportConfig { self.oversized_transfer.enabled = enabled; self } + /// Set the full CEP-41 open-stream configuration. + /// + /// Data only in PR1: the event loop does not read this until PR2. + pub fn with_open_stream(mut self, config: OpenStreamConfig) -> Self { + self.open_stream = config; + self + } } /// Client-side Nostr transport for sending MCP requests and receiving responses. diff --git a/src/transport/discovery_tags.rs b/src/transport/discovery_tags.rs index ca20a9c..e1545f4 100644 --- a/src/transport/discovery_tags.rs +++ b/src/transport/discovery_tags.rs @@ -20,6 +20,8 @@ pub struct PeerCapabilities { pub supports_ephemeral_encryption: bool, /// Peer supports CEP-22 oversized payload transfer. pub supports_oversized_transfer: bool, + /// Peer supports CEP-41 open-ended streaming. + pub supports_open_stream: bool, } /// Returns `true` when the tag list contains a single-valued tag whose name matches `name`. @@ -57,6 +59,7 @@ pub fn learn_peer_capabilities(tags: &[Tag]) -> PeerCapabilities { supports_encryption: has_single_tag(tags, tags::SUPPORT_ENCRYPTION), supports_ephemeral_encryption: has_single_tag(tags, tags::SUPPORT_ENCRYPTION_EPHEMERAL), supports_oversized_transfer: has_single_tag(tags, tags::SUPPORT_OVERSIZED_TRANSFER), + supports_open_stream: has_single_tag(tags, tags::SUPPORT_OPEN_STREAM), } } @@ -176,11 +179,13 @@ mod tests { make_tag(&["support_encryption"]), make_tag(&["support_encryption_ephemeral"]), make_tag(&["support_oversized_transfer"]), + make_tag(&["support_open_stream"]), ]; let caps = learn_peer_capabilities(&tags); assert!(caps.supports_encryption); assert!(caps.supports_ephemeral_encryption); assert!(caps.supports_oversized_transfer); + assert!(caps.supports_open_stream); } #[test] @@ -199,6 +204,20 @@ mod tests { assert!(caps.supports_encryption); assert!(!caps.supports_ephemeral_encryption); assert!(!caps.supports_oversized_transfer); + assert!(!caps.supports_open_stream); + } + + #[test] + fn learn_peer_capabilities_open_stream_only() { + // A single-element `support_open_stream` tag flips only the open-stream + // flag; multi-element variants of the same tag are ignored. + let tags = vec![make_tag(&["support_open_stream"])]; + let caps = learn_peer_capabilities(&tags); + assert!(caps.supports_open_stream); + assert!(!caps.supports_encryption); + + let multi = vec![make_tag(&["support_open_stream", "extra"])]; + assert!(!learn_peer_capabilities(&multi).supports_open_stream); } #[test] @@ -258,6 +277,7 @@ mod tests { assert!(!caps.supports_encryption); assert!(!caps.supports_ephemeral_encryption); assert!(!caps.supports_oversized_transfer); + assert!(!caps.supports_open_stream); } #[test] @@ -266,6 +286,7 @@ mod tests { supports_encryption: true, supports_ephemeral_encryption: true, supports_oversized_transfer: false, + supports_open_stream: true, }; let copy = caps; assert_eq!(caps, copy); diff --git a/src/transport/mod.rs b/src/transport/mod.rs index 7b17104..99b8290 100644 --- a/src/transport/mod.rs +++ b/src/transport/mod.rs @@ -6,9 +6,14 @@ pub mod base; pub mod client; pub mod discovery_tags; +pub mod open_stream; pub mod oversized_transfer; pub mod server; pub use client::{ClientCorrelationStore, NostrClientTransport, NostrClientTransportConfig}; pub use discovery_tags::*; +pub use open_stream::{ + OpenStreamConfig, OpenStreamError, OpenStreamFrame, OpenStreamRegistry, + OpenStreamRegistryPolicy, OpenStreamSession, OpenStreamWriter, +}; pub use server::{NostrServerTransport, NostrServerTransportConfig, ServerEventRouteStore}; diff --git a/src/transport/open_stream/constants.rs b/src/transport/open_stream/constants.rs new file mode 100644 index 0000000..076cca5 --- /dev/null +++ b/src/transport/open_stream/constants.rs @@ -0,0 +1,26 @@ +//! CEP-41 open-stream constants. +//! +//! The normative CEP leaves these numeric defaults to implementers, so we adopt +//! the TypeScript SDK's values (`sdk/src/transport/open-stream/constants.ts`) +//! for cross-implementation interop. + +/// The `cvm.type` discriminator carried in every open-stream frame. +pub const OPEN_STREAM_TYPE: &str = "open-stream"; + +/// Default upper bound on concurrently active open streams (per peer/registry). +pub const DEFAULT_MAX_CONCURRENT_OPEN_STREAMS: usize = 64; + +/// Default maximum number of buffered + queued chunks held for a single stream. +pub const DEFAULT_MAX_BUFFERED_CHUNKS_PER_STREAM: usize = 64; + +/// Default maximum buffered + queued payload bytes held for a single stream. +pub const DEFAULT_MAX_BUFFERED_BYTES_PER_STREAM: usize = 512 * 1024; + +/// Default idle interval after which a reader probes the peer with a `ping` (milliseconds). +pub const DEFAULT_OPEN_STREAM_IDLE_TIMEOUT_MS: u64 = 30_000; + +/// Default time a reader waits for a `pong` after probing before aborting (milliseconds). +pub const DEFAULT_OPEN_STREAM_PROBE_TIMEOUT_MS: u64 = 20_000; + +/// Default grace period after a `close` with unresolved gaps before aborting (milliseconds). +pub const DEFAULT_OPEN_STREAM_CLOSE_GRACE_PERIOD_MS: u64 = 5_000; diff --git a/src/transport/open_stream/errors.rs b/src/transport/open_stream/errors.rs new file mode 100644 index 0000000..2ca475a --- /dev/null +++ b/src/transport/open_stream/errors.rs @@ -0,0 +1,49 @@ +//! Error taxonomy for CEP-41 open streams. +//! +//! Mirrors the TypeScript SDK's error classes +//! (`sdk/src/transport/open-stream/errors.ts`) so failure classification is +//! identical across implementations. Surfaced through the crate-level +//! [`crate::Error`] via a `#[from]` conversion. + +/// Errors raised while reading, writing, or sequencing an open stream. +#[derive(Debug, Clone, PartialEq, Eq, thiserror::Error)] +pub enum OpenStreamError { + /// The stream was aborted locally or by the remote peer (terminal). + #[error("Open stream aborted (token: {token}){}", .reason.as_deref().map(|r| format!(": {r}")).unwrap_or_default())] + Abort { + /// The `progressToken` of the aborted stream. + token: String, + /// Optional advisory reason supplied in the `abort` frame. + reason: Option, + }, + + /// A stream violated local admission or buffering policy + /// (concurrency, buffered-chunk count, buffered+queued byte budget). + #[error("Open stream policy violation: {0}")] + Policy(String), + + /// Frames violated CEP-41 lifecycle or ordering rules (non-increasing + /// progress, stale/duplicate `chunkIndex`, frame before `start`, frame + /// after a terminal close/abort, incomplete `close.lastChunkIndex`). + #[error("Open stream sequence error: {0}")] + Sequence(String), +} + +impl OpenStreamError { + /// Construct an [`OpenStreamError::Abort`]. + pub fn abort(token: impl Into, reason: Option) -> Self { + Self::Abort { + token: token.into(), + reason, + } + } + + /// Returns `true` if this is a terminal [`abort`](OpenStreamError::Abort). + pub fn is_abort(&self) -> bool { + matches!(self, Self::Abort { .. }) + } +} + +// The crate-level `From for crate::Error` conversion is +// generated by the `#[from]` attribute on `Error::OpenStream` (see +// `src/core/error.rs`), mirroring `OversizedTransferError`. diff --git a/src/transport/open_stream/frame.rs b/src/transport/open_stream/frame.rs new file mode 100644 index 0000000..2a4ba25 --- /dev/null +++ b/src/transport/open_stream/frame.rs @@ -0,0 +1,342 @@ +//! CEP-41 `cvm` frame types and their `notifications/progress` envelope. +//! +//! A frame is the ContextVM `cvm` extension object embedded in the `params` of +//! an MCP `notifications/progress` notification. The outer `params` also carry +//! the `progressToken` (the stream id) and a strictly-monotonic `progress` +//! value that orders *all* frames in one direction. See the frame shapes in +//! `sdk/src/transport/open-stream/types.ts`. +//! +//! Unlike CEP-22, an open-stream `chunk` also carries a `chunkIndex` (contiguous +//! from 0) that tracks payload completeness independently of the outer +//! `progress` counter. + +use serde::{Deserialize, Serialize}; +use serde_json::{Map, Value}; + +use crate::core::types::JsonRpcNotification; +use crate::transport::oversized_transfer::NOTIFICATIONS_PROGRESS_METHOD; + +use super::constants::OPEN_STREAM_TYPE; + +/// A CEP-41 open-stream frame (the `cvm` object). +/// +/// Internally tagged on `frameType`. The constant `cvm.type` (`"open-stream"`) +/// is handled separately by [`to_cvm_value`](Self::to_cvm_value) / +/// [`from_cvm_value`](Self::from_cvm_value) rather than encoded as an enum +/// field, exactly mirroring CEP-22's `oversized_transfer/frame.rs`. +#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] +#[serde(tag = "frameType", rename_all = "camelCase")] +pub enum OpenStreamFrame { + /// Opens a stream. Carries only optional application-defined advisory + /// metadata; receivers MUST NOT depend on it for stream correctness. + #[serde(rename_all = "camelCase")] + Start { + /// Optional advisory content type (writer-settable, receiver-ignored). + #[serde(default, skip_serializing_if = "Option::is_none")] + content_type: Option, + }, + /// Reader handshake acknowledgement, sent only in reply to an inbound `start`. + Accept, + /// One ordered payload fragment of the stream. + #[serde(rename_all = "camelCase")] + Chunk { + /// Contiguous-from-0 chunk index used for completeness/ordering. + chunk_index: u64, + /// The chunk payload (an arbitrary UTF-8 string). + data: String, + }, + /// Keepalive probe; the peer must echo the `nonce` in a `pong`. + Ping { + /// Opaque probe nonce echoed back by the peer. + nonce: String, + }, + /// Keepalive response echoing a prior `ping` nonce. + Pong { + /// The nonce of the `ping` being acknowledged. + nonce: String, + }, + /// Closes the stream gracefully (terminal). Declares the final chunk index + /// when any chunks were emitted, so the reader can verify completeness. + #[serde(rename_all = "camelCase")] + Close { + /// The highest `chunkIndex` emitted, or `None` for a zero-chunk stream. + #[serde(default, skip_serializing_if = "Option::is_none")] + last_chunk_index: Option, + }, + /// Terminates the stream early (terminal). + Abort { + /// Optional advisory reason. + #[serde(default, skip_serializing_if = "Option::is_none")] + reason: Option, + }, +} + +impl OpenStreamFrame { + /// Returns the `frameType` discriminator string for this frame. + pub fn frame_type(&self) -> &'static str { + match self { + Self::Start { .. } => "start", + Self::Accept => "accept", + Self::Chunk { .. } => "chunk", + Self::Ping { .. } => "ping", + Self::Pong { .. } => "pong", + Self::Close { .. } => "close", + Self::Abort { .. } => "abort", + } + } + + /// Serialize this frame into a `cvm` object [`Value`], injecting the constant + /// `type` discriminator (`"open-stream"`). + pub fn to_cvm_value(&self) -> Result { + let mut value = serde_json::to_value(self)?; + if let Value::Object(map) = &mut value { + map.insert( + "type".to_string(), + Value::String(OPEN_STREAM_TYPE.to_string()), + ); + } + Ok(value) + } + + /// Parse a `cvm` object [`Value`] into a typed frame, verifying the `type` + /// discriminator. Returns `None` when `value` is not an open-stream frame or + /// fails to parse. + pub fn from_cvm_value(value: &Value) -> Option { + if value.get("type").and_then(Value::as_str) != Some(OPEN_STREAM_TYPE) { + return None; + } + serde_json::from_value(value.clone()).ok() + } + + /// Returns `true` when `value` structurally looks like an open-stream frame + /// (`type == "open-stream"` and a string `frameType`). + /// + /// Mirrors the TS `isOpenStreamFrame` structural narrowing. + pub fn is_frame_value(value: &Value) -> bool { + value.get("type").and_then(Value::as_str) == Some(OPEN_STREAM_TYPE) + && value.get("frameType").and_then(Value::as_str).is_some() + } + + /// Wrap this frame in a `notifications/progress` [`JsonRpcNotification`]. + /// + /// Builds the outer `params` with `progressToken`, `progress`, an optional + /// human-readable `message` (non-normative UX), and the `cvm` frame. The + /// token is always emitted as a JSON **string**, even when the originating + /// request carried a numeric one (matching the TS SDK's + /// `String(progressToken)`); see + /// [`progress_token_string`](crate::transport::oversized_transfer::progress_token_string). + pub fn into_progress_notification( + &self, + progress_token: &str, + progress: u64, + message: Option<&str>, + ) -> Result { + let mut params = Map::new(); + params.insert( + "progressToken".to_string(), + Value::String(progress_token.to_string()), + ); + params.insert("progress".to_string(), Value::Number(progress.into())); + if let Some(message) = message { + params.insert("message".to_string(), Value::String(message.to_string())); + } + params.insert("cvm".to_string(), self.to_cvm_value()?); + + Ok(JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: NOTIFICATIONS_PROGRESS_METHOD.to_string(), + params: Some(Value::Object(params)), + }) + } +} + +/// Extract a typed [`OpenStreamFrame`] from a `notifications/progress` payload's +/// `params.cvm`, returning `None` for any non-open-stream notification. +pub fn open_stream_frame_from_notification( + notification: &JsonRpcNotification, +) -> Option { + notification + .params + .as_ref() + .and_then(|params| params.get("cvm")) + .and_then(OpenStreamFrame::from_cvm_value) +} + +#[cfg(test)] +mod tests { + use super::*; + use serde_json::json; + + fn assert_cvm_roundtrip(frame: OpenStreamFrame) { + let value = frame.to_cvm_value().unwrap(); + assert_eq!(value["type"], json!("open-stream")); + assert_eq!(value["frameType"], json!(frame.frame_type())); + assert_eq!(OpenStreamFrame::from_cvm_value(&value), Some(frame)); + } + + #[test] + fn all_frame_variants_roundtrip() { + assert_cvm_roundtrip(OpenStreamFrame::Start { + content_type: Some("text/plain".to_string()), + }); + assert_cvm_roundtrip(OpenStreamFrame::Start { content_type: None }); + assert_cvm_roundtrip(OpenStreamFrame::Accept); + assert_cvm_roundtrip(OpenStreamFrame::Chunk { + chunk_index: 7, + data: "payload".to_string(), + }); + assert_cvm_roundtrip(OpenStreamFrame::Ping { + nonce: "tok:1".to_string(), + }); + assert_cvm_roundtrip(OpenStreamFrame::Pong { + nonce: "tok:1".to_string(), + }); + assert_cvm_roundtrip(OpenStreamFrame::Close { + last_chunk_index: Some(4), + }); + assert_cvm_roundtrip(OpenStreamFrame::Close { + last_chunk_index: None, + }); + assert_cvm_roundtrip(OpenStreamFrame::Abort { + reason: Some("boom".to_string()), + }); + assert_cvm_roundtrip(OpenStreamFrame::Abort { reason: None }); + } + + #[test] + fn chunk_frame_serializes_with_camel_case_fields() { + let value = OpenStreamFrame::Chunk { + chunk_index: 3, + data: "abc".to_string(), + } + .to_cvm_value() + .unwrap(); + assert_eq!(value["type"], json!("open-stream")); + assert_eq!(value["frameType"], json!("chunk")); + assert_eq!(value["chunkIndex"], json!(3)); + assert_eq!(value["data"], json!("abc")); + // snake_case field name must not leak onto the wire. + assert!(!value.as_object().unwrap().contains_key("chunk_index")); + } + + #[test] + fn start_content_type_serializes_camel_case_and_omits_when_none() { + let with = OpenStreamFrame::Start { + content_type: Some("application/json".to_string()), + } + .to_cvm_value() + .unwrap(); + assert_eq!(with["contentType"], json!("application/json")); + + let without = OpenStreamFrame::Start { content_type: None } + .to_cvm_value() + .unwrap(); + assert!(!without.as_object().unwrap().contains_key("contentType")); + } + + #[test] + fn close_last_chunk_index_serializes_camel_case_and_omits_when_none() { + let with = OpenStreamFrame::Close { + last_chunk_index: Some(9), + } + .to_cvm_value() + .unwrap(); + assert_eq!(with["lastChunkIndex"], json!(9)); + + let without = OpenStreamFrame::Close { + last_chunk_index: None, + } + .to_cvm_value() + .unwrap(); + assert!(!without.as_object().unwrap().contains_key("lastChunkIndex")); + } + + #[test] + fn abort_reason_omitted_when_none() { + let value = OpenStreamFrame::Abort { reason: None } + .to_cvm_value() + .unwrap(); + assert!(!value.as_object().unwrap().contains_key("reason")); + } + + #[test] + fn from_cvm_value_rejects_wrong_type() { + let value = json!({ "type": "oversized-transfer", "frameType": "start" }); + assert_eq!(OpenStreamFrame::from_cvm_value(&value), None); + assert!(!OpenStreamFrame::is_frame_value(&value)); + } + + #[test] + fn from_cvm_value_rejects_unknown_frame_type() { + let value = json!({ "type": "open-stream", "frameType": "bogus" }); + assert_eq!(OpenStreamFrame::from_cvm_value(&value), None); + } + + #[test] + fn is_frame_value_requires_type_and_frame_type() { + assert!(OpenStreamFrame::is_frame_value( + &json!({ "type": "open-stream", "frameType": "chunk", "chunkIndex": 0, "data": "x" }) + )); + assert!(!OpenStreamFrame::is_frame_value( + &json!({ "type": "open-stream" }) + )); + assert!(!OpenStreamFrame::is_frame_value( + &json!({ "frameType": "chunk" }) + )); + assert!(!OpenStreamFrame::is_frame_value(&json!("not an object"))); + } + + #[test] + fn into_progress_notification_builds_progress_envelope() { + let notification = OpenStreamFrame::Chunk { + chunk_index: 2, + data: "frag".to_string(), + } + .into_progress_notification("tok-1", 7, Some("hi")) + .unwrap(); + + assert_eq!(notification.method, "notifications/progress"); + let params = notification.params.as_ref().unwrap(); + // progressToken is always a string on the wire. + assert_eq!(params["progressToken"], json!("tok-1")); + // progress is numeric. + assert_eq!(params["progress"], json!(7)); + assert_eq!(params["message"], json!("hi")); + assert_eq!(params["cvm"]["frameType"], json!("chunk")); + assert_eq!(params["cvm"]["chunkIndex"], json!(2)); + assert_eq!(params["cvm"]["data"], json!("frag")); + assert_eq!(params["cvm"]["type"], json!("open-stream")); + } + + #[test] + fn into_progress_notification_omits_absent_message() { + let notification = OpenStreamFrame::Accept + .into_progress_notification("tok-1", 9, None) + .unwrap(); + let params = notification.params.as_ref().unwrap(); + assert!(!params.as_object().unwrap().contains_key("message")); + } + + #[test] + fn open_stream_frame_from_notification_extracts_typed_frame() { + let notification = OpenStreamFrame::Ping { + nonce: "n".to_string(), + } + .into_progress_notification("tok", 1, None) + .unwrap(); + assert_eq!( + open_stream_frame_from_notification(¬ification), + Some(OpenStreamFrame::Ping { + nonce: "n".to_string() + }) + ); + + // A plain (non-cvm) progress notification yields None. + let plain = JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: Some(json!({ "progressToken": "t", "progress": 3 })), + }; + assert_eq!(open_stream_frame_from_notification(&plain), None); + } +} diff --git a/src/transport/open_stream/mod.rs b/src/transport/open_stream/mod.rs new file mode 100644 index 0000000..64d7197 --- /dev/null +++ b/src/transport/open_stream/mod.rs @@ -0,0 +1,213 @@ +//! CEP-41 open-ended streaming — transport-agnostic engine. +//! +//! A server tool can emit an ordered, unbounded sequence of `chunk` fragments +//! back to a client *while a request is in flight*; the client consumes them +//! incrementally as an async [`Stream`](futures::Stream). Unlike CEP-22, the +//! stream does **not** replace the final JSON-RPC response — one `tools/call` +//! produces two outputs: a live `notifications/progress` stream and the normal +//! final response that still concludes the request. +//! +//! Frames ride inside `notifications/progress` notifications on the existing +//! `CTXVM_MESSAGES_KIND`, discriminated by `params.cvm.type == "open-stream"` +//! ([`frame`]). The stream id is the request `progressToken`. See the CEP-41 +//! spec and the TypeScript reference at `sdk/src/transport/open-stream/`. +//! +//! This module is the **pure engine**: framing ([`frame`]), the reader +//! [`OpenStreamSession`] (incl. the pure keepalive [`tick`](OpenStreamSession::tick)), +//! the producer [`OpenStreamWriter`], and the per-peer [`OpenStreamRegistry`]. +//! It carries no transport or live timers — the client and server transports +//! drive it (the keepalive sweep calls `tick`; inbound frames feed +//! `process_frame`). + +pub mod constants; +pub mod errors; +pub mod frame; +pub mod receiver; +pub mod registry; +pub mod session; +pub mod writer; + +pub use constants::*; +pub use errors::OpenStreamError; +pub use frame::{open_stream_frame_from_notification, OpenStreamFrame}; +pub use receiver::OpenStreamReceiver; +pub use registry::{OpenStreamRegistry, OpenStreamRegistryPolicy}; +pub use session::{FrameOutcome, KeepaliveAction, OpenStreamSession, PublishFrame}; +pub use writer::OpenStreamWriter; + +/// CEP-41 open-stream configuration shared by both transports. +/// +/// Bundles the capability gate plus the reader buffering/keepalive knobs. +/// Attached to +/// [`NostrServerTransportConfig`](crate::transport::NostrServerTransportConfig) +/// and [`NostrClientTransportConfig`](crate::transport::NostrClientTransportConfig) +/// via their `with_open_stream` builders. +/// +/// **Disabled by default** (opt-in): the capability is neither advertised nor +/// activated until a future default flip, so the field is inert data the event +/// loops do not consult yet. +#[derive(Debug, Clone)] +#[non_exhaustive] +pub struct OpenStreamConfig { + /// Master gate, `false` by default. When `false` the capability is neither + /// advertised nor activated, and the server does not learn a client's flag. + pub enabled: bool, + /// Upper bound on concurrently active streams (per peer/registry). + pub max_concurrent_streams: usize, + /// Upper bound on buffered + queued chunks held for a single stream. + pub max_buffered_chunks_per_stream: usize, + /// Upper bound on buffered + queued payload bytes held for a single stream. + pub max_buffered_bytes_per_stream: usize, + /// Idle interval after which a reader probes the peer with a `ping` (ms). + pub idle_timeout_ms: u64, + /// Time a reader waits for a `pong` after probing before aborting (ms). + pub probe_timeout_ms: u64, + /// Grace period after a `close` with unresolved gaps before aborting (ms). + pub close_grace_period_ms: u64, + /// Optional hard cap on total stream lifetime (ms). + /// + /// `None` (the default) means no lifetime cap. When set, only + /// `call_tool_stream` reads it (the registry and keepalive sweep never do); + /// it is **not** the CEP-22 `DEFAULT_OVERSIZED_MAX_TOTAL_TIMEOUT`. + pub max_total_timeout_ms: Option, +} + +impl Default for OpenStreamConfig { + fn default() -> Self { + Self { + enabled: false, + max_concurrent_streams: constants::DEFAULT_MAX_CONCURRENT_OPEN_STREAMS, + max_buffered_chunks_per_stream: constants::DEFAULT_MAX_BUFFERED_CHUNKS_PER_STREAM, + max_buffered_bytes_per_stream: constants::DEFAULT_MAX_BUFFERED_BYTES_PER_STREAM, + idle_timeout_ms: constants::DEFAULT_OPEN_STREAM_IDLE_TIMEOUT_MS, + probe_timeout_ms: constants::DEFAULT_OPEN_STREAM_PROBE_TIMEOUT_MS, + close_grace_period_ms: constants::DEFAULT_OPEN_STREAM_CLOSE_GRACE_PERIOD_MS, + max_total_timeout_ms: None, + } + } +} + +impl OpenStreamConfig { + /// An explicitly enabled config with all other knobs at their defaults. + pub fn enabled() -> Self { + Self { + enabled: true, + ..Self::default() + } + } + + /// Enable or disable open-stream support. + pub fn with_enabled(mut self, enabled: bool) -> Self { + self.enabled = enabled; + self + } + + /// Set the upper bound on concurrently active streams. + pub fn with_max_concurrent_streams(mut self, max: usize) -> Self { + self.max_concurrent_streams = max; + self + } + + /// Set the upper bound on buffered + queued chunks per stream. + pub fn with_max_buffered_chunks_per_stream(mut self, max: usize) -> Self { + self.max_buffered_chunks_per_stream = max; + self + } + + /// Set the upper bound on buffered + queued payload bytes per stream. + pub fn with_max_buffered_bytes_per_stream(mut self, max: usize) -> Self { + self.max_buffered_bytes_per_stream = max; + self + } + + /// Set the idle interval before a reader probes with a `ping` (ms). + pub fn with_idle_timeout_ms(mut self, ms: u64) -> Self { + self.idle_timeout_ms = ms; + self + } + + /// Set the time a reader waits for a `pong` before aborting (ms). + pub fn with_probe_timeout_ms(mut self, ms: u64) -> Self { + self.probe_timeout_ms = ms; + self + } + + /// Set the close grace period before aborting on unresolved gaps (ms). + pub fn with_close_grace_period_ms(mut self, ms: u64) -> Self { + self.close_grace_period_ms = ms; + self + } + + /// Set the optional hard cap on total stream lifetime (ms). + pub fn with_max_total_timeout_ms(mut self, ms: Option) -> Self { + self.max_total_timeout_ms = ms; + self + } +} + +impl From<&OpenStreamConfig> for OpenStreamRegistryPolicy { + /// Project the registry-relevant knobs of an [`OpenStreamConfig`] into an + /// [`OpenStreamRegistryPolicy`] (the reader admission/buffering policy). + fn from(config: &OpenStreamConfig) -> Self { + OpenStreamRegistryPolicy { + max_concurrent_streams: config.max_concurrent_streams, + max_buffered_chunks_per_stream: config.max_buffered_chunks_per_stream, + max_buffered_bytes_per_stream: config.max_buffered_bytes_per_stream, + idle_timeout_ms: config.idle_timeout_ms, + probe_timeout_ms: config.probe_timeout_ms, + close_grace_period_ms: config.close_grace_period_ms, + } + } +} + +#[cfg(test)] +mod config_tests { + use super::*; + + #[test] + fn default_is_disabled_with_ts_parity_knobs() { + let config = OpenStreamConfig::default(); + assert!(!config.enabled); + assert_eq!(config.max_concurrent_streams, 64); + assert_eq!(config.max_buffered_chunks_per_stream, 64); + assert_eq!(config.max_buffered_bytes_per_stream, 512 * 1024); + assert_eq!(config.idle_timeout_ms, 30_000); + assert_eq!(config.probe_timeout_ms, 20_000); + assert_eq!(config.close_grace_period_ms, 5_000); + // No hard lifetime cap by default. + assert_eq!(config.max_total_timeout_ms, None); + } + + #[test] + fn builders_opt_in_and_override() { + let config = OpenStreamConfig::default() + .with_enabled(true) + .with_max_concurrent_streams(8) + .with_max_buffered_bytes_per_stream(1024) + .with_max_total_timeout_ms(Some(60_000)); + assert!(config.enabled); + assert_eq!(config.max_concurrent_streams, 8); + assert_eq!(config.max_buffered_bytes_per_stream, 1024); + assert_eq!(config.max_total_timeout_ms, Some(60_000)); + + assert!(OpenStreamConfig::enabled().enabled); + } + + #[test] + fn projects_into_registry_policy() { + let config = OpenStreamConfig::default() + .with_max_concurrent_streams(3) + .with_max_buffered_chunks_per_stream(5) + .with_max_buffered_bytes_per_stream(7) + .with_idle_timeout_ms(11) + .with_probe_timeout_ms(13) + .with_close_grace_period_ms(17); + let policy: OpenStreamRegistryPolicy = (&config).into(); + assert_eq!(policy.max_concurrent_streams, 3); + assert_eq!(policy.max_buffered_chunks_per_stream, 5); + assert_eq!(policy.max_buffered_bytes_per_stream, 7); + assert_eq!(policy.idle_timeout_ms, 11); + assert_eq!(policy.probe_timeout_ms, 13); + assert_eq!(policy.close_grace_period_ms, 17); + } +} diff --git a/src/transport/open_stream/receiver.rs b/src/transport/open_stream/receiver.rs new file mode 100644 index 0000000..709e4f1 --- /dev/null +++ b/src/transport/open_stream/receiver.rs @@ -0,0 +1,146 @@ +//! Thin transport-facing adapter over an [`OpenStreamRegistry`]. +//! +//! Ports `sdk/src/transport/open-stream/receiver.ts`. The client transport owns +//! one receiver (single peer); the server owns one per peer. It recognizes +//! inbound CEP-41 frames +//! ([`is_open_stream_frame`](OpenStreamReceiver::is_open_stream_frame)) and feeds +//! them to the registry with the real clock +//! ([`process_frame`](OpenStreamReceiver::process_frame)). The registry's own +//! `process_frame` takes an explicit `now` so the engine stays unit-testable +//! with an injected clock; this adapter supplies `Instant::now()` at the +//! transport boundary. + +use std::time::Instant; + +use crate::core::types::JsonRpcNotification; + +use super::errors::OpenStreamError; +use super::registry::{OpenStreamRegistry, OpenStreamRegistryPolicy}; +use super::session::{FrameOutcome, OpenStreamSession}; + +/// Transport-facing CEP-41 receiver wrapping a per-peer registry. +pub struct OpenStreamReceiver { + registry: OpenStreamRegistry, +} + +impl Default for OpenStreamReceiver { + fn default() -> Self { + Self::new() + } +} + +impl OpenStreamReceiver { + /// Create a receiver with the default policy. + pub fn new() -> Self { + Self { + registry: OpenStreamRegistry::new(), + } + } + + /// Create a receiver with an explicit registry policy. + pub fn with_policy(policy: OpenStreamRegistryPolicy) -> Self { + Self { + registry: OpenStreamRegistry::with_policy(policy), + } + } + + /// Returns `true` when `notification` carries a CEP-41 frame in `params.cvm`. + pub fn is_open_stream_frame(notification: &JsonRpcNotification) -> bool { + OpenStreamRegistry::is_open_stream_progress(notification) + } + + /// Feed one inbound `notifications/progress` frame to the registry, stamping + /// liveness with the real clock. + pub async fn process_frame( + &mut self, + notification: &JsonRpcNotification, + ) -> Result { + self.registry + .process_frame(Instant::now(), notification) + .await + } + + /// Look up an active reader session by token. + pub fn get_session(&self, progress_token: &str) -> Option { + self.registry.get_session(progress_token) + } + + /// Number of active streams. + pub fn active_stream_count(&self) -> usize { + self.registry.size() + } + + /// Borrow the underlying registry (e.g. to create an outbound reader session + /// or drive the keepalive sweep). + pub fn registry(&self) -> &OpenStreamRegistry { + &self.registry + } + + /// Mutably borrow the underlying registry. + pub fn registry_mut(&mut self) -> &mut OpenStreamRegistry { + &mut self.registry + } + + /// Dispose all sessions and clear the registry. + pub fn clear(&mut self) { + self.registry.clear(); + } +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::transport::open_stream::frame::OpenStreamFrame; + use serde_json::json; + + fn start_notification(token: &str, progress: u64) -> JsonRpcNotification { + OpenStreamFrame::Start { content_type: None } + .into_progress_notification(token, progress, None) + .unwrap() + } + + #[test] + fn is_open_stream_frame_detects_cvm_payload() { + let frame = start_notification("tok", 1); + assert!(OpenStreamReceiver::is_open_stream_frame(&frame)); + + let plain = JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: Some(json!({ "progressToken": "tok", "progress": 1 })), + }; + assert!(!OpenStreamReceiver::is_open_stream_frame(&plain)); + + // An oversized-transfer frame is not an open-stream frame. + let oversized = JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: Some(json!({ + "progressToken": "tok", + "progress": 1, + "cvm": { "type": "oversized-transfer", "frameType": "end" } + })), + }; + assert!(!OpenStreamReceiver::is_open_stream_frame(&oversized)); + } + + #[tokio::test] + async fn process_frame_delegates_to_registry_and_tracks_session() { + let mut receiver = OpenStreamReceiver::new(); + receiver + .process_frame(&start_notification("tok", 1)) + .await + .unwrap(); + assert_eq!(receiver.active_stream_count(), 1); + assert!(receiver.get_session("tok").is_some()); + + // Driving a graceful close through the adapter removes the session. + let close = OpenStreamFrame::Close { + last_chunk_index: None, + } + .into_progress_notification("tok", 2, None) + .unwrap(); + receiver.process_frame(&close).await.unwrap(); + assert_eq!(receiver.active_stream_count(), 0); + } +} diff --git a/src/transport/open_stream/registry.rs b/src/transport/open_stream/registry.rs new file mode 100644 index 0000000..609591b --- /dev/null +++ b/src/transport/open_stream/registry.rs @@ -0,0 +1,704 @@ +//! Per-peer registry of active CEP-41 reader sessions, keyed by `progressToken`. +//! +//! Ports `sdk/src/transport/open-stream/registry.ts`. Enforces admission +//! (max-concurrent → `Policy`; duplicate token → `Sequence`; a session is +//! created **only** on a `start` frame — any other first frame is a `Sequence` +//! error), routes inbound frames to the matching [`OpenStreamSession`], and +//! removes a session on its terminal close/abort (running optional per-session +//! hooks, which are always cleaned up even if they error). + +use std::collections::HashMap; +use std::time::Instant; + +use futures::future::BoxFuture; +use serde_json::Value; + +use crate::core::types::JsonRpcNotification; +use crate::transport::oversized_transfer::progress_token_string; + +use super::constants::{ + DEFAULT_MAX_BUFFERED_BYTES_PER_STREAM, DEFAULT_MAX_BUFFERED_CHUNKS_PER_STREAM, + DEFAULT_MAX_CONCURRENT_OPEN_STREAMS, DEFAULT_OPEN_STREAM_CLOSE_GRACE_PERIOD_MS, + DEFAULT_OPEN_STREAM_IDLE_TIMEOUT_MS, DEFAULT_OPEN_STREAM_PROBE_TIMEOUT_MS, +}; +use super::errors::OpenStreamError; +use super::frame::OpenStreamFrame; +use super::session::{FrameOutcome, OpenStreamSession, OpenStreamSessionOptions, PublishFrame}; + +const LOG_TARGET: &str = "contextvm_sdk::transport::open_stream"; + +/// Hook fired after a session closes gracefully. Errors are logged and swallowed. +pub type RegistryCloseHook = Box BoxFuture<'static, crate::Result<()>> + Send>; + +/// Hook fired after a session aborts (with the advisory reason). Errors are +/// logged and swallowed. +pub type RegistryAbortHook = + Box) -> BoxFuture<'static, crate::Result<()>> + Send>; + +/// Reader admission / buffering / keepalive policy for a registry's sessions. +/// +/// Projected from +/// [`OpenStreamConfig`](crate::transport::open_stream::OpenStreamConfig) via +/// `From<&OpenStreamConfig>`. +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub struct OpenStreamRegistryPolicy { + /// Maximum concurrently active streams. + pub max_concurrent_streams: usize, + /// Maximum buffered + queued chunks per stream. + pub max_buffered_chunks_per_stream: usize, + /// Maximum buffered + queued payload bytes per stream. + pub max_buffered_bytes_per_stream: usize, + /// Idle interval before a reader probes with a `ping` (ms). + pub idle_timeout_ms: u64, + /// Time a reader waits for a `pong` before aborting (ms). + pub probe_timeout_ms: u64, + /// Grace period after a `close` with unresolved gaps before aborting (ms). + pub close_grace_period_ms: u64, +} + +impl Default for OpenStreamRegistryPolicy { + fn default() -> Self { + Self { + max_concurrent_streams: DEFAULT_MAX_CONCURRENT_OPEN_STREAMS, + max_buffered_chunks_per_stream: DEFAULT_MAX_BUFFERED_CHUNKS_PER_STREAM, + max_buffered_bytes_per_stream: DEFAULT_MAX_BUFFERED_BYTES_PER_STREAM, + idle_timeout_ms: DEFAULT_OPEN_STREAM_IDLE_TIMEOUT_MS, + probe_timeout_ms: DEFAULT_OPEN_STREAM_PROBE_TIMEOUT_MS, + close_grace_period_ms: DEFAULT_OPEN_STREAM_CLOSE_GRACE_PERIOD_MS, + } + } +} + +/// Optional per-session wiring supplied at creation time. +#[derive(Default)] +pub struct OpenStreamSessionInit { + /// Outbound publisher for the reader's consumer `abort` frame. + pub publish_frame: Option, + /// Hook fired after a graceful close. + pub on_close: Option, + /// Hook fired after an abort. + pub on_abort: Option, +} + +/// A registered session plus its terminal lifecycle hooks. +struct RegistryEntry { + session: OpenStreamSession, + on_close: Option, + on_abort: Option, +} + +/// Registry of active CEP-41 reader sessions keyed by `progressToken`. +pub struct OpenStreamRegistry { + policy: OpenStreamRegistryPolicy, + sessions: HashMap, +} + +impl Default for OpenStreamRegistry { + fn default() -> Self { + Self::new() + } +} + +impl OpenStreamRegistry { + /// Create a registry with the default policy. + pub fn new() -> Self { + Self::with_policy(OpenStreamRegistryPolicy::default()) + } + + /// Create a registry with an explicit policy. + pub fn with_policy(policy: OpenStreamRegistryPolicy) -> Self { + Self { + policy, + sessions: HashMap::new(), + } + } + + /// Number of active sessions. + pub fn size(&self) -> usize { + self.sessions.len() + } + + /// Look up an active session by token. + pub fn get_session(&self, progress_token: &str) -> Option { + self.sessions + .get(progress_token) + .map(|entry| entry.session.clone()) + } + + /// Returns `true` when `notification` carries a CEP-41 frame in `params.cvm`. + /// + /// Mirrors the TS `OpenStreamRegistry.isOpenStreamProgress` narrowing. + pub fn is_open_stream_progress(notification: &JsonRpcNotification) -> bool { + notification + .params + .as_ref() + .and_then(|params| params.get("cvm")) + .map(OpenStreamFrame::is_frame_value) + .unwrap_or(false) + } + + /// Create a session for `progress_token` with default wiring. + pub fn create_session( + &mut self, + progress_token: impl Into, + ) -> Result { + self.create_session_with(progress_token, OpenStreamSessionInit::default()) + } + + /// Create a session for `progress_token` with explicit wiring, enforcing the + /// duplicate-token (`Sequence`) and max-concurrent (`Policy`) admission rules. + pub fn create_session_with( + &mut self, + progress_token: impl Into, + init: OpenStreamSessionInit, + ) -> Result { + let progress_token = progress_token.into(); + if self.sessions.contains_key(&progress_token) { + return Err(OpenStreamError::Sequence(format!( + "Stream session already exists for {progress_token}" + ))); + } + if self.sessions.len() >= self.policy.max_concurrent_streams { + return Err(OpenStreamError::Policy( + "Maximum concurrent open streams exceeded".to_string(), + )); + } + + let session = OpenStreamSession::new(OpenStreamSessionOptions { + progress_token: progress_token.clone(), + max_buffered_chunks: self.policy.max_buffered_chunks_per_stream, + max_buffered_bytes: self.policy.max_buffered_bytes_per_stream as u64, + idle_timeout_ms: self.policy.idle_timeout_ms, + probe_timeout_ms: self.policy.probe_timeout_ms, + close_grace_period_ms: self.policy.close_grace_period_ms, + publish_frame: init.publish_frame, + }); + self.sessions.insert( + progress_token, + RegistryEntry { + session: session.clone(), + on_close: init.on_close, + on_abort: init.on_abort, + }, + ); + Ok(session) + } + + /// Return the existing session for `progress_token`, creating one (with + /// default wiring) if absent. + pub fn get_or_create_session( + &mut self, + progress_token: impl Into, + ) -> Result { + let progress_token = progress_token.into(); + if let Some(session) = self.get_session(&progress_token) { + return Ok(session); + } + self.create_session(progress_token) + } + + /// Route one inbound frame to its session, creating the session on a `start`. + /// + /// On a sequencing/policy violation the offending session is failed and + /// removed before the error is returned; on a terminal close/abort the + /// session is removed and its hook run (errors logged, never propagated). + pub async fn process_frame( + &mut self, + now: Instant, + notification: &JsonRpcNotification, + ) -> Result { + let (progress_token, progress, frame) = parse_frame(notification)?; + + if !self.sessions.contains_key(&progress_token) { + if frame.frame_type() != "start" { + return Err(OpenStreamError::Sequence(format!( + "Received {} frame before start for {progress_token}", + frame.frame_type() + ))); + } + self.create_session_with(progress_token.clone(), OpenStreamSessionInit::default())?; + } + + // Clone the Arc-backed handle out so the map is not borrowed across the + // hook `.await`s below. + let session = self + .sessions + .get(&progress_token) + .expect("session present after create") + .session + .clone(); + + match session.process_frame(now, progress, frame) { + Ok(FrameOutcome::Closed) => { + self.run_close(&progress_token).await; + Ok(FrameOutcome::Closed) + } + Ok(FrameOutcome::Aborted(reason)) => { + self.run_abort(&progress_token, reason.clone()).await; + Ok(FrameOutcome::Aborted(reason)) + } + Ok(other) => Ok(other), + Err(error) => { + session.fail(error.clone()); + self.run_abort(&progress_token, None).await; + Err(error) + } + } + } + + /// Dispose every session gracefully and drop them (runs no hooks). + pub fn clear(&mut self) { + for (_, entry) in self.sessions.drain() { + entry.session.dispose(); + } + } + + /// Remove a closed session and run its `on_close` hook (errors swallowed). + async fn run_close(&mut self, progress_token: &str) { + if let Some(entry) = self.sessions.remove(progress_token) { + if let Some(hook) = entry.on_close { + if let Err(error) = hook().await { + tracing::debug!( + target: LOG_TARGET, + token = %progress_token, + %error, + "open-stream on_close hook errored" + ); + } + } + } + } + + /// Remove an aborted session and run its `on_abort` hook (errors swallowed). + async fn run_abort(&mut self, progress_token: &str, reason: Option) { + if let Some(entry) = self.sessions.remove(progress_token) { + if let Some(hook) = entry.on_abort { + if let Err(error) = hook(reason).await { + tracing::debug!( + target: LOG_TARGET, + token = %progress_token, + %error, + "open-stream on_abort hook errored" + ); + } + } + } + } +} + +/// Extract `(progressToken, progress, frame)` from a `notifications/progress` +/// payload, rejecting any non-CEP-41 or malformed notification with `Sequence`. +fn parse_frame( + notification: &JsonRpcNotification, +) -> Result<(String, i64, OpenStreamFrame), OpenStreamError> { + let params = notification.params.as_ref().ok_or_else(|| { + OpenStreamError::Sequence("Open stream frame is missing params".to_string()) + })?; + let frame = params + .get("cvm") + .and_then(OpenStreamFrame::from_cvm_value) + .ok_or_else(|| { + OpenStreamError::Sequence("Notification is not an open-stream frame".to_string()) + })?; + + let progress_token = params + .get("progressToken") + .and_then(progress_token_string) + .filter(|token| !token.is_empty()) + .ok_or_else(|| { + OpenStreamError::Sequence("Open stream frame is missing progressToken".to_string()) + })?; + + let progress = parse_progress(params.get("progress"), &progress_token)?; + Ok((progress_token, progress, frame)) +} + +/// Parse the outer `progress` as an integer (CEP-41 requires it on every frame). +fn parse_progress(value: Option<&Value>, token: &str) -> Result { + let progress = match value { + Some(Value::Number(n)) => n.as_i64().or_else(|| { + n.as_f64() + .and_then(|f| if f.is_finite() { Some(f as i64) } else { None }) + }), + _ => None, + }; + progress.ok_or_else(|| { + OpenStreamError::Sequence(format!("Invalid progress value (token: {token})")) + }) +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::Error; + use futures::StreamExt; + use serde_json::json; + + fn now() -> Instant { + Instant::now() + } + + fn notif(token: &str, progress: u64, frame: OpenStreamFrame) -> JsonRpcNotification { + frame + .into_progress_notification(token, progress, None) + .unwrap() + } + + fn start() -> OpenStreamFrame { + OpenStreamFrame::Start { content_type: None } + } + + fn chunk(index: u64, data: &str) -> OpenStreamFrame { + OpenStreamFrame::Chunk { + chunk_index: index, + data: data.to_string(), + } + } + + fn small_policy(max_concurrent: usize) -> OpenStreamRegistryPolicy { + OpenStreamRegistryPolicy { + max_concurrent_streams: max_concurrent, + max_buffered_chunks_per_stream: 4, + max_buffered_bytes_per_stream: 128, + ..OpenStreamRegistryPolicy::default() + } + } + + #[tokio::test] + async fn enforces_max_concurrent_and_reuses_slot_after_close() { + let mut registry = OpenStreamRegistry::with_policy(small_policy(1)); + let _first = registry.create_session("token-1").unwrap(); + assert!(matches!( + registry.create_session("token-2").unwrap_err(), + OpenStreamError::Policy(_) + )); + + // Drive token-1 to a graceful close through the registry to free the slot. + registry + .process_frame(now(), ¬if("token-1", 1, start())) + .await + .unwrap(); + registry + .process_frame( + now(), + ¬if( + "token-1", + 2, + OpenStreamFrame::Close { + last_chunk_index: None, + }, + ), + ) + .await + .unwrap(); + + registry.create_session("token-2").unwrap(); + assert_eq!(registry.size(), 1); + } + + #[test] + fn get_or_create_reuses_the_same_session() { + let mut registry = OpenStreamRegistry::with_policy(small_policy(2)); + let first = registry.get_or_create_session("token-shared").unwrap(); + let second = registry.get_or_create_session("token-shared").unwrap(); + assert!(first.shares_state_with(&second)); + assert_eq!(registry.size(), 1); + } + + #[test] + fn rejects_creating_a_duplicate_token() { + let mut registry = OpenStreamRegistry::with_policy(small_policy(4)); + registry.create_session("token-dup").unwrap(); + // A second `create` for a live token is a sequence violation (not a new + // slot and not silent reuse) — distinct from the concurrency `Policy` cap. + assert!(matches!( + registry.create_session("token-dup").unwrap_err(), + OpenStreamError::Sequence(_) + )); + assert_eq!(registry.size(), 1); + } + + #[tokio::test] + async fn routes_a_duplicate_start_frame_to_a_sequence_error() { + // Admission creates the session on the first `start`; a second `start` + // routes to the live session, which rejects it (the `Duplicate start` + // guard), and the registry then fails + removes the session. + let mut registry = OpenStreamRegistry::with_policy(small_policy(2)); + registry + .process_frame(now(), ¬if("token-dup-start", 1, start())) + .await + .unwrap(); + let err = registry + .process_frame(now(), ¬if("token-dup-start", 2, start())) + .await + .unwrap_err(); + assert!(matches!(err, OpenStreamError::Sequence(_))); + assert!(registry.get_session("token-dup-start").is_none()); + } + + #[tokio::test] + async fn rejects_non_start_frames_for_unknown_tokens() { + let mut registry = OpenStreamRegistry::with_policy(small_policy(2)); + let err = registry + .process_frame(now(), ¬if("token-missing-start", 1, chunk(0, "orphan"))) + .await + .unwrap_err(); + assert!(matches!(err, OpenStreamError::Sequence(_))); + assert!(registry.get_session("token-missing-start").is_none()); + assert_eq!(registry.size(), 0); + } + + #[tokio::test] + async fn terminates_session_when_frame_processing_fails_after_creation() { + let mut registry = OpenStreamRegistry::with_policy(OpenStreamRegistryPolicy { + max_buffered_bytes_per_stream: 4, + ..small_policy(2) + }); + registry + .process_frame(now(), ¬if("token-fail", 1, start())) + .await + .unwrap(); + let mut session = registry.get_session("token-fail").unwrap(); + + // 'hello' (5 bytes) at an out-of-order index exceeds the 4-byte budget. + let err = registry + .process_frame(now(), ¬if("token-fail", 2, chunk(1, "hello"))) + .await + .unwrap_err(); + assert!(matches!(err, OpenStreamError::Sequence(_))); + assert!(registry.get_session("token-fail").is_none()); + + // The session was failed: its stream surfaces the same error class. + match session.next().await { + Some(Err(OpenStreamError::Sequence(_))) => {} + other => panic!("expected sequence error on the stream, got {other:?}"), + } + } + + #[tokio::test] + async fn applies_default_buffering_limits() { + let mut registry = OpenStreamRegistry::new(); + registry + .process_frame(now(), ¬if("token-chunks", 1, start())) + .await + .unwrap(); + // Buffer exactly DEFAULT_MAX_BUFFERED_CHUNKS_PER_STREAM out-of-order chunks. + for i in 0..DEFAULT_MAX_BUFFERED_CHUNKS_PER_STREAM as u64 { + registry + .process_frame(now(), ¬if("token-chunks", i + 2, chunk(i + 1, "x"))) + .await + .unwrap(); + } + let err = registry + .process_frame( + now(), + ¬if( + "token-chunks", + DEFAULT_MAX_BUFFERED_CHUNKS_PER_STREAM as u64 + 2, + chunk(DEFAULT_MAX_BUFFERED_CHUNKS_PER_STREAM as u64 + 1, "x"), + ), + ) + .await + .unwrap_err(); + assert!(matches!(err, OpenStreamError::Sequence(_))); + + // The default byte budget is enforced too. + let mut byte_registry = OpenStreamRegistry::new(); + byte_registry + .process_frame(now(), ¬if("token-bytes", 1, start())) + .await + .unwrap(); + let oversized = "x".repeat(DEFAULT_MAX_BUFFERED_BYTES_PER_STREAM + 1); + let err = byte_registry + .process_frame(now(), ¬if("token-bytes", 2, chunk(1, &oversized))) + .await + .unwrap_err(); + assert!(matches!(err, OpenStreamError::Sequence(_))); + } + + #[tokio::test] + async fn ping_frame_routes_to_a_pong_outcome() { + let mut registry = OpenStreamRegistry::new(); + registry + .process_frame(now(), ¬if("token-timers", 1, start())) + .await + .unwrap(); + let outcome = registry + .process_frame( + now(), + ¬if( + "token-timers", + 2, + OpenStreamFrame::Ping { + nonce: "peer-nonce".to_string(), + }, + ), + ) + .await + .unwrap(); + assert_eq!(outcome, FrameOutcome::SendPong("peer-nonce".to_string())); + } + + #[tokio::test] + async fn clear_disposes_active_sessions() { + let mut registry = OpenStreamRegistry::with_policy(small_policy(2)); + let session = registry.create_session("token-clear").unwrap(); + registry + .process_frame(now(), ¬if("token-clear", 1, start())) + .await + .unwrap(); + + registry.clear(); + assert_eq!(registry.size(), 0); + // Dispose finalized the session gracefully. + session.closed().await; + } + + #[tokio::test] + async fn accepts_start_frame_with_advisory_metadata_omitted() { + let mut registry = OpenStreamRegistry::with_policy(small_policy(2)); + let outcome = registry + .process_frame(now(), ¬if("token-advisory", 1, start())) + .await + .unwrap(); + assert_eq!(outcome, FrameOutcome::None); + assert!(registry.get_session("token-advisory").is_some()); + + registry.clear(); + assert_eq!(registry.size(), 0); + } + + #[tokio::test] + async fn rejects_malformed_non_cep41_payloads() { + // The structural predicate rejects every non-CEP-41 shape. + let malformed = [ + json!({ "progressToken": "missing-cvm", "progress": 1 }), + json!({ "progressToken": "wrong-type", "progress": 1, "cvm": { "type": "other", "frameType": "start" } }), + json!({ "progressToken": "missing-frame-type", "progress": 1, "cvm": { "type": "open-stream" } }), + ]; + for params in malformed { + let notification = JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: Some(params), + }; + assert!(!OpenStreamRegistry::is_open_stream_progress(¬ification)); + } + assert!(OpenStreamRegistry::is_open_stream_progress(¬if( + "ok", + 1, + start() + ))); + + // Feeding a malformed payload to the router is a Sequence error. + let mut registry = OpenStreamRegistry::new(); + let bad = JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: Some(json!({ "progressToken": "t", "progress": 1 })), + }; + assert!(matches!( + registry.process_frame(now(), &bad).await.unwrap_err(), + OpenStreamError::Sequence(_) + )); + } + + #[tokio::test] + async fn rejects_accept_as_the_first_frame() { + let mut registry = OpenStreamRegistry::with_policy(small_policy(2)); + let err = registry + .process_frame( + now(), + ¬if("token-orphan-accept", 1, OpenStreamFrame::Accept), + ) + .await + .unwrap_err(); + assert!(matches!(err, OpenStreamError::Sequence(_))); + assert!(registry.get_session("token-orphan-accept").is_none()); + } + + #[tokio::test] + async fn removes_session_even_when_on_close_hook_errors() { + let mut registry = OpenStreamRegistry::with_policy(small_policy(1)); + let on_close: RegistryCloseHook = Box::new(|| { + Box::pin(async { Err::<(), Error>(Error::Other("close failed".to_string())) }) + }); + registry + .create_session_with( + "token-close-throws", + OpenStreamSessionInit { + on_close: Some(on_close), + ..Default::default() + }, + ) + .unwrap(); + + registry + .process_frame(now(), ¬if("token-close-throws", 1, start())) + .await + .unwrap(); + // Graceful close fires on_close (which errors) but the session is removed. + registry + .process_frame( + now(), + ¬if( + "token-close-throws", + 2, + OpenStreamFrame::Close { + last_chunk_index: None, + }, + ), + ) + .await + .unwrap(); + + assert!(registry.get_session("token-close-throws").is_none()); + assert_eq!(registry.size(), 0); + } + + #[tokio::test] + async fn removes_session_even_when_on_abort_hook_errors() { + let mut registry = OpenStreamRegistry::with_policy(small_policy(1)); + let on_abort: RegistryAbortHook = Box::new(|_reason| { + Box::pin(async { Err::<(), Error>(Error::Other("abort failed".to_string())) }) + }); + registry + .create_session_with( + "token-abort-throws", + OpenStreamSessionInit { + on_abort: Some(on_abort), + ..Default::default() + }, + ) + .unwrap(); + let mut session = registry.get_session("token-abort-throws").unwrap(); + + registry + .process_frame(now(), ¬if("token-abort-throws", 1, start())) + .await + .unwrap(); + registry + .process_frame( + now(), + ¬if( + "token-abort-throws", + 2, + OpenStreamFrame::Abort { + reason: Some("boom".to_string()), + }, + ), + ) + .await + .unwrap(); + + assert!(registry.get_session("token-abort-throws").is_none()); + assert_eq!(registry.size(), 0); + // The session was finalized with the peer's abort reason. + match session.next().await { + Some(Err(OpenStreamError::Abort { reason, .. })) => { + assert_eq!(reason.as_deref(), Some("boom")); + } + other => panic!("expected abort error on the stream, got {other:?}"), + } + } +} diff --git a/src/transport/open_stream/session.rs b/src/transport/open_stream/session.rs new file mode 100644 index 0000000..581240c --- /dev/null +++ b/src/transport/open_stream/session.rs @@ -0,0 +1,1182 @@ +//! Reader-side view of a CEP-41 open stream. +//! +//! Ports `sdk/src/transport/open-stream/session.ts`. An [`OpenStreamSession`] is +//! fed inbound frames via the **synchronous** [`process_frame`](OpenStreamSession::process_frame) +//! and consumed as an async [`Stream`] of payload chunks. It owns no live timers: +//! the keepalive state machine is the pure [`tick`](OpenStreamSession::tick) +//! method (idle → `ping`, probe → abort, close-grace → abort), which the owning +//! transport drives from its periodic sweep. +//! +//! Design: the feed path is a plain sync call +//! under a `std::sync::Mutex`; the drain path is a manual [`Stream`] impl over a +//! `VecDeque` plus a stored [`Waker`]. The terminal error is delivered **once** +//! on the next poll (`terminal.take()`), an intentional divergence from the TS +//! reference where it is rejected to every parked reader; [`closed`](OpenStreamSession::closed) +//! resolves to `()` on any finalize and never carries the error. + +use std::collections::{BTreeMap, VecDeque}; +use std::future::Future; +use std::pin::Pin; +use std::sync::{Arc, Mutex}; +use std::task::{Context, Poll, Waker}; +use std::time::{Duration, Instant}; + +use futures::future::BoxFuture; +use futures::Stream; +use nostr_sdk::prelude::EventId; + +use crate::core::types::JsonRpcNotification; + +use super::errors::OpenStreamError; +use super::frame::OpenStreamFrame; + +/// Injected outbound publish closure (same seam as the writer). +/// +/// Used by the reader's consumer [`abort`](OpenStreamSession::abort) to emit an +/// `abort` frame to the peer. Cheaply clonable (`Arc`) so a session handle stays +/// clonable across the registry and the consumer. +pub type PublishFrame = + Arc BoxFuture<'static, crate::Result> + Send + Sync>; + +/// The effect a single processed frame requires of the async caller. +/// +/// Keeps the state machine I/O-free (like the oversized receiver): the inbound +/// dispatcher performs any send the outcome demands. +#[derive(Debug, Clone, PartialEq, Eq)] +pub enum FrameOutcome { + /// No side effect; await more frames. + None, + /// A `ping` was received; the caller must publish a `pong` echoing the nonce. + SendPong(String), + /// The stream closed gracefully (terminal). + Closed, + /// The stream was aborted by the peer (terminal); advisory reason attached. + Aborted(Option), +} + +/// The keepalive action a [`tick`](OpenStreamSession::tick) requires of the sweep. +#[derive(Debug, Clone, PartialEq, Eq)] +pub enum KeepaliveAction { + /// Idle threshold not yet crossed (or a probe is already in flight). + None, + /// Idle threshold crossed: publish a `ping` carrying this nonce. + SendPing(String), + /// A deadline expired: the stream was aborted locally with this reason. + Abort(String), +} + +/// Construction options for an [`OpenStreamSession`]. +pub struct OpenStreamSessionOptions { + /// The stream id (stringified `progressToken`). + pub progress_token: String, + /// Maximum buffered + queued chunks held before a `Sequence` error. + pub max_buffered_chunks: usize, + /// Maximum buffered + queued payload bytes before a `Sequence` error. + pub max_buffered_bytes: u64, + /// Idle interval before the reader probes the peer with a `ping` (ms). + pub idle_timeout_ms: u64, + /// Time the reader waits for a `pong` after probing before aborting (ms). + pub probe_timeout_ms: u64, + /// Grace period after a `close` with unresolved gaps before aborting (ms). + pub close_grace_period_ms: u64, + /// Outbound publisher for the consumer `abort` frame (optional). + pub publish_frame: Option, +} + +/// Mutable per-stream state, guarded by a `std::sync::Mutex`. +/// +/// All mutation happens under the lock in synchronous methods that never +/// `.await`, so the lock is never held across a suspension point. +struct SessionState { + progress_token: String, + + // ── policy ────────────────────────────────────────────────────── + max_buffered_chunks: usize, + max_buffered_bytes: u64, + idle_timeout: Duration, + probe_timeout: Duration, + close_grace_period: Duration, + + // ── data plane ────────────────────────────────────────────────── + /// Emittable chunks awaiting the consumer (FIFO). + queue: VecDeque, + /// Out-of-order chunks buffered by `chunkIndex` until contiguous. + buffered: BTreeMap, + /// UTF-8 byte total of [`buffered`](Self::buffered). + buffered_bytes: u64, + /// UTF-8 byte total of [`queue`](Self::queue). + queued_bytes: u64, + /// The next contiguous `chunkIndex` to emit. + next_expected_chunk: u64, + /// Highest outer `progress` accepted so far (sentinel `-1`). + last_progress: i64, + started: bool, + active: bool, + closed_remotely: bool, + /// `close.lastChunkIndex` (only meaningful once `closed_remotely`). + expected_last_chunk_index: Option, + /// Terminal error, delivered once on the next stream poll. + terminal: Option, + /// Parked stream consumer. + waker: Option, + /// Parked `closed()` futures. + closed_wakers: Vec, + + // ── keepalive (pure `tick`, driven by the transport sweep) ────── + last_activity: Instant, + pending_probe_nonce: Option, + control_nonce: u64, + probe_deadline: Option, + close_grace_deadline: Option, + /// Outbound `progress` counter for the consumer `abort` frame. + outbound_progress: u64, +} + +impl SessionState { + fn assert_active(&self) -> Result<(), OpenStreamError> { + if !self.active { + return Err(OpenStreamError::Sequence(format!( + "Received frame for inactive stream {}", + self.progress_token + ))); + } + Ok(()) + } + + fn assert_started(&self) -> Result<(), OpenStreamError> { + if !self.started { + return Err(OpenStreamError::Sequence(format!( + "Received non-start frame before start for {}", + self.progress_token + ))); + } + Ok(()) + } + + /// The outer `progress` must be strictly increasing across all frames. + fn assert_progress(&mut self, progress: i64) -> Result<(), OpenStreamError> { + if progress <= self.last_progress { + return Err(OpenStreamError::Sequence(format!( + "Non-increasing progress for stream {}", + self.progress_token + ))); + } + self.last_progress = progress; + Ok(()) + } + + fn buffer_chunk(&mut self, chunk_index: u64, data: String) -> Result<(), OpenStreamError> { + if chunk_index < self.next_expected_chunk { + return Err(OpenStreamError::Sequence(format!( + "Stale chunkIndex {chunk_index} for {}", + self.progress_token + ))); + } + if self.buffered.contains_key(&chunk_index) { + return Err(OpenStreamError::Sequence(format!( + "Duplicate chunkIndex {chunk_index} for {}", + self.progress_token + ))); + } + + let chunk_bytes = data.len() as u64; + if self.buffered.len() + self.queue.len() >= self.max_buffered_chunks { + return Err(OpenStreamError::Sequence(format!( + "Buffered chunk limit exceeded for stream {}", + self.progress_token + ))); + } + if self.buffered_bytes + self.queued_bytes + chunk_bytes > self.max_buffered_bytes { + return Err(OpenStreamError::Sequence(format!( + "Buffered byte limit exceeded for stream {}", + self.progress_token + ))); + } + + self.buffered.insert(chunk_index, data); + self.buffered_bytes += chunk_bytes; + Ok(()) + } + + /// Flush every contiguous buffered chunk into the emit queue, then — if the + /// peer has closed — attempt a graceful finish. Returns `Ok(true)` when the + /// stream finished gracefully on this call. + fn flush_contiguous_chunks(&mut self) -> Result { + while let Some(data) = self.buffered.remove(&self.next_expected_chunk) { + self.buffered_bytes = self.buffered_bytes.saturating_sub(data.len() as u64); + self.emit(data); + self.next_expected_chunk += 1; + } + + if self.closed_remotely { + return self.maybe_finish_gracefully(); + } + Ok(false) + } + + /// Resolve a graceful close if all declared chunks have been emitted. + /// Returns `Ok(true)` on finish, `Ok(false)` while still waiting on a gap, + /// `Err(Sequence)` when the declared `lastChunkIndex` can never be met. + fn maybe_finish_gracefully(&mut self) -> Result { + if !self.closed_remotely || !self.buffered.is_empty() { + return Ok(false); + } + + if let Some(expected) = self.expected_last_chunk_index { + if self.next_expected_chunk != expected + 1 { + return Err(OpenStreamError::Sequence(format!( + "Incomplete stream for {}: expected chunks through {expected}", + self.progress_token + ))); + } + } + + self.finalize(None); + Ok(true) + } + + /// Push an emittable chunk and wake the parked consumer. + fn emit(&mut self, data: String) { + self.queued_bytes += data.len() as u64; + self.queue.push_back(data); + self.wake_stream(); + } + + fn handle_pong(&mut self, nonce: &str) { + if self.pending_probe_nonce.as_deref() == Some(nonce) { + self.pending_probe_nonce = None; + self.probe_deadline = None; + } + } + + fn next_control_nonce(&mut self) -> String { + self.control_nonce += 1; + format!("{}:{}", self.progress_token, self.control_nonce) + } + + /// Pure keepalive transition. The owning transport calls this from its sweep + /// with `Instant::now()` and performs any returned send. + fn tick(&mut self, now: Instant) -> KeepaliveAction { + if !self.active { + return KeepaliveAction::None; + } + + // 1. A pending probe whose deadline passed → abort. + if let (Some(deadline), true) = (self.probe_deadline, self.pending_probe_nonce.is_some()) { + if now >= deadline { + let token = self.progress_token.clone(); + self.finalize(Some(OpenStreamError::abort( + token, + Some("Probe timeout".to_string()), + ))); + return KeepaliveAction::Abort("Probe timeout".to_string()); + } + } + + // 2. Close-grace deadline passed with chunks still missing → abort. + if let Some(deadline) = self.close_grace_deadline { + if self.closed_remotely && !self.buffered.is_empty() && now >= deadline { + let token = self.progress_token.clone(); + self.finalize(Some(OpenStreamError::abort( + token, + Some("Close grace period expired".to_string()), + ))); + return KeepaliveAction::Abort("Close grace period expired".to_string()); + } + } + + // 3. Idle past the threshold (and not closed / not already probing) → ping. + if !self.closed_remotely + && self.pending_probe_nonce.is_none() + && now.saturating_duration_since(self.last_activity) >= self.idle_timeout + { + let nonce = self.next_control_nonce(); + self.pending_probe_nonce = Some(nonce.clone()); + self.probe_deadline = Some(now + self.probe_timeout); + return KeepaliveAction::SendPing(nonce); + } + + KeepaliveAction::None + } + + /// Terminate the stream. Idempotent. `error` is delivered once on the next + /// stream poll; `None` ends the stream gracefully. Wakes the consumer and + /// any `closed()` futures. + fn finalize(&mut self, error: Option) { + if !self.active { + return; + } + self.active = false; + self.terminal = error; + self.pending_probe_nonce = None; + self.probe_deadline = None; + self.close_grace_deadline = None; + self.wake_stream(); + for waker in self.closed_wakers.drain(..) { + waker.wake(); + } + } + + fn wake_stream(&mut self) { + if let Some(waker) = self.waker.take() { + waker.wake(); + } + } +} + +/// Readable reader-side handle for a CEP-41 stream. +/// +/// Cheaply clonable (`Arc`-backed): the registry holds one clone to feed frames +/// while the consumer holds another to drain the [`Stream`]. +#[derive(Clone)] +pub struct OpenStreamSession { + /// Immutable stream id, duplicated here so accessors/`Debug` need no lock. + progress_token: String, + state: Arc>, + publish_frame: Option, +} + +impl std::fmt::Debug for OpenStreamSession { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + f.debug_struct("OpenStreamSession") + .field("progress_token", &self.progress_token) + .finish_non_exhaustive() + } +} + +impl OpenStreamSession { + /// Create a new reader session from explicit options. + pub fn new(options: OpenStreamSessionOptions) -> Self { + let publish_frame = options.publish_frame.clone(); + let progress_token = options.progress_token.clone(); + let state = SessionState { + progress_token: options.progress_token, + max_buffered_chunks: options.max_buffered_chunks, + max_buffered_bytes: options.max_buffered_bytes, + idle_timeout: Duration::from_millis(options.idle_timeout_ms), + probe_timeout: Duration::from_millis(options.probe_timeout_ms), + close_grace_period: Duration::from_millis(options.close_grace_period_ms), + queue: VecDeque::new(), + buffered: BTreeMap::new(), + buffered_bytes: 0, + queued_bytes: 0, + next_expected_chunk: 0, + last_progress: -1, + started: false, + active: true, + closed_remotely: false, + expected_last_chunk_index: None, + terminal: None, + waker: None, + closed_wakers: Vec::new(), + last_activity: Instant::now(), + pending_probe_nonce: None, + control_nonce: 0, + probe_deadline: None, + close_grace_deadline: None, + outbound_progress: 0, + }; + Self { + progress_token, + state: Arc::new(Mutex::new(state)), + publish_frame, + } + } + + /// The stream id (stringified `progressToken`). + pub fn progress_token(&self) -> &str { + &self.progress_token + } + + /// Whether the stream is still live (not yet closed/aborted/failed). + pub fn is_active(&self) -> bool { + self.state.lock().unwrap().active + } + + /// Whether the `start` frame has been observed. + pub fn has_started(&self) -> bool { + self.state.lock().unwrap().started + } + + /// Process one inbound frame, stamping `last_activity = now`. + /// + /// Returns the [`FrameOutcome`] the async caller must act on (publish a + /// `pong`, observe a terminal close/abort). On a sequencing/policy violation + /// it returns `Err` **without** finalizing — the caller (registry) decides + /// whether to [`fail`](Self::fail) the session. + pub fn process_frame( + &self, + now: Instant, + progress: i64, + frame: OpenStreamFrame, + ) -> Result { + let mut s = self.state.lock().unwrap(); + s.assert_active()?; + s.assert_progress(progress)?; + // Every accepted frame counts as liveness. + s.last_activity = now; + + match frame { + OpenStreamFrame::Start { .. } => { + if s.started { + return Err(OpenStreamError::Sequence(format!( + "Duplicate start frame for stream {}", + s.progress_token + ))); + } + s.started = true; + Ok(FrameOutcome::None) + } + OpenStreamFrame::Accept => Ok(FrameOutcome::None), + OpenStreamFrame::Ping { nonce } => { + s.assert_started()?; + Ok(FrameOutcome::SendPong(nonce)) + } + OpenStreamFrame::Pong { nonce } => { + s.assert_started()?; + s.handle_pong(&nonce); + Ok(FrameOutcome::None) + } + OpenStreamFrame::Chunk { chunk_index, data } => { + s.assert_started()?; + s.buffer_chunk(chunk_index, data)?; + let finished = s.flush_contiguous_chunks()?; + Ok(if finished { + FrameOutcome::Closed + } else { + FrameOutcome::None + }) + } + OpenStreamFrame::Close { last_chunk_index } => { + s.assert_started()?; + s.closed_remotely = true; + s.expected_last_chunk_index = last_chunk_index; + let finished = s.flush_contiguous_chunks()?; + if finished { + Ok(FrameOutcome::Closed) + } else { + // A real out-of-order gap remains: arm the close grace timer + // (only reached when chunks are still buffered). + s.close_grace_deadline = Some(now + s.close_grace_period); + Ok(FrameOutcome::None) + } + } + OpenStreamFrame::Abort { reason } => { + let token = s.progress_token.clone(); + s.finalize(Some(OpenStreamError::abort(token, reason.clone()))); + Ok(FrameOutcome::Aborted(reason)) + } + } + } + + /// Pure keepalive transition (idle → `ping`, probe/grace → abort). Driven by + /// the owning transport's periodic sweep with `Instant::now()`. + pub fn tick(&self, now: Instant) -> KeepaliveAction { + self.state.lock().unwrap().tick(now) + } + + /// Terminate the stream with an explicit error (no abort frame published). + /// Mirrors the registry's `fail` path; the error surfaces on the next poll. + pub fn fail(&self, error: OpenStreamError) { + self.state.lock().unwrap().finalize(Some(error)); + } + + /// Dispose the stream gracefully (ends the [`Stream`] with `None`). Used by + /// the registry's `clear`; runs no hooks. + pub fn dispose(&self) { + self.state.lock().unwrap().finalize(None); + } + + /// Consumer-initiated cancel: finalize locally (terminal abort error on the + /// next poll) and, if a publisher was injected, emit an `abort` frame to the + /// peer. Idempotent; the transport exposes this as the consumer's stream cancel. + pub async fn abort(&self, reason: Option) { + let publish = { + let mut s = self.state.lock().unwrap(); + if !s.active { + return; + } + let token = s.progress_token.clone(); + s.finalize(Some(OpenStreamError::abort(token.clone(), reason.clone()))); + self.publish_frame.as_ref().map(|publisher| { + s.outbound_progress += 1; + (publisher.clone(), token, s.outbound_progress) + }) + }; + + if let Some((publisher, token, progress)) = publish { + if let Ok(notification) = (OpenStreamFrame::Abort { + reason: reason.clone(), + }) + .into_progress_notification(&token, progress, None) + { + // Best effort — the local stream is already finalized. + let _ = publisher(notification).await; + } + } + } + + /// A future that resolves to `()` when the stream finalizes (graceful close, + /// abort, fail, or dispose). It never carries the terminal error — that is + /// delivered once on the [`Stream`] (intentional Rust divergence from TS). + pub fn closed(&self) -> Closed { + Closed { + state: self.state.clone(), + } + } + + /// Whether two handles refer to the same underlying session state (used by + /// the registry's get-or-create reuse tests). + #[cfg(test)] + pub(crate) fn shares_state_with(&self, other: &Self) -> bool { + Arc::ptr_eq(&self.state, &other.state) + } +} + +impl Stream for OpenStreamSession { + type Item = Result; + + fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { + let mut s = self.state.lock().unwrap(); + if let Some(item) = s.queue.pop_front() { + s.queued_bytes = s.queued_bytes.saturating_sub(item.len() as u64); + return Poll::Ready(Some(Ok(item))); + } + if !s.active { + return match s.terminal.take() { + Some(error) => Poll::Ready(Some(Err(error))), + None => Poll::Ready(None), + }; + } + s.waker = Some(cx.waker().clone()); + Poll::Pending + } +} + +/// Future returned by [`OpenStreamSession::closed`]; resolves on finalize. +pub struct Closed { + state: Arc>, +} + +impl Future for Closed { + type Output = (); + + fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll { + let mut s = self.state.lock().unwrap(); + if !s.active { + Poll::Ready(()) + } else { + s.closed_wakers.push(cx.waker().clone()); + Poll::Pending + } + } +} + +#[cfg(test)] +mod tests { + use super::*; + use futures::{poll, StreamExt}; + + fn make_session(token: &str, max_chunks: usize, max_bytes: u64) -> OpenStreamSession { + OpenStreamSession::new(OpenStreamSessionOptions { + progress_token: token.to_string(), + max_buffered_chunks: max_chunks, + max_buffered_bytes: max_bytes, + idle_timeout_ms: 30_000, + probe_timeout_ms: 20_000, + close_grace_period_ms: 5_000, + publish_frame: None, + }) + } + + fn make_session_timers(token: &str, idle: u64, probe: u64, grace: u64) -> OpenStreamSession { + OpenStreamSession::new(OpenStreamSessionOptions { + progress_token: token.to_string(), + max_buffered_chunks: 8, + max_buffered_bytes: 1024, + idle_timeout_ms: idle, + probe_timeout_ms: probe, + close_grace_period_ms: grace, + publish_frame: None, + }) + } + + fn start() -> OpenStreamFrame { + OpenStreamFrame::Start { content_type: None } + } + + fn chunk(index: u64, data: &str) -> OpenStreamFrame { + OpenStreamFrame::Chunk { + chunk_index: index, + data: data.to_string(), + } + } + + fn close(last: Option) -> OpenStreamFrame { + OpenStreamFrame::Close { + last_chunk_index: last, + } + } + + /// Drain a *finalized* stream's queued chunks (panics on a terminal error). + async fn drain_ok(session: &mut OpenStreamSession) -> Vec { + let mut out = Vec::new(); + while let Some(item) = session.next().await { + out.push(item.expect("graceful stream must not yield an error")); + } + out + } + + // ── data-plane ────────────────────────────────────────────────── + + #[tokio::test] + async fn yields_ordered_chunks_and_finishes_after_close() { + let now = Instant::now(); + let mut s = make_session("token-1", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + s.process_frame(now, 2, chunk(0, "hello")).unwrap(); + s.process_frame(now, 3, chunk(1, " world")).unwrap(); + assert_eq!( + s.process_frame(now, 4, close(None)).unwrap(), + FrameOutcome::Closed + ); + + assert_eq!(drain_ok(&mut s).await, vec!["hello", " world"]); + s.closed().await; + } + + #[tokio::test] + async fn buffers_out_of_order_chunks_until_contiguous() { + let now = Instant::now(); + let mut s = make_session("token-2", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + s.process_frame(now, 2, chunk(1, "world")).unwrap(); + s.process_frame(now, 3, chunk(0, "hello ")).unwrap(); + s.process_frame(now, 4, close(None)).unwrap(); + + assert_eq!(drain_ok(&mut s).await, vec!["hello ", "world"]); + } + + #[tokio::test] + async fn fails_when_progress_does_not_increase() { + let now = Instant::now(); + let s = make_session("token-3", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + let err = s.process_frame(now, 1, chunk(0, "repeat")).unwrap_err(); + assert!(matches!(err, OpenStreamError::Sequence(_))); + } + + #[tokio::test] + async fn rejects_a_duplicate_start_frame() { + let now = Instant::now(); + let s = make_session("token-dup-start", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + // A second `start` on an already-started stream is a sequencing violation. + let err = s.process_frame(now, 2, start()).unwrap_err(); + assert!(matches!(err, OpenStreamError::Sequence(_))); + } + + #[tokio::test] + async fn abort_frame_terminates_stream_with_error_on_next_poll() { + let now = Instant::now(); + let mut s = make_session("token-4", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + assert_eq!( + s.process_frame( + now, + 2, + OpenStreamFrame::Abort { + reason: Some("boom".to_string()) + } + ) + .unwrap(), + FrameOutcome::Aborted(Some("boom".to_string())) + ); + + match s.next().await { + Some(Err(OpenStreamError::Abort { reason, .. })) => { + assert_eq!(reason.as_deref(), Some("boom")); + } + other => panic!("expected abort error, got {other:?}"), + } + // The error is delivered once; the stream then ends. + assert!(s.next().await.is_none()); + s.closed().await; + } + + #[tokio::test] + async fn fails_when_buffered_chunk_count_exceeds_limit() { + let now = Instant::now(); + let s = make_session("token-buffer-count", 1, 1024); + s.process_frame(now, 1, start()).unwrap(); + s.process_frame(now, 2, chunk(1, "late")).unwrap(); + let err = s.process_frame(now, 3, chunk(2, "later")).unwrap_err(); + assert!(matches!(err, OpenStreamError::Sequence(_))); + } + + #[tokio::test] + async fn fails_when_buffered_byte_count_exceeds_limit_utf8() { + let now = Instant::now(); + let s = make_session("token-buffer-bytes", 4, 4); + s.process_frame(now, 1, start()).unwrap(); + // "héllo" is 6 UTF-8 bytes (é = 2), exceeding the 4-byte cap; this also + // pins UTF-8 byte accounting (a `str::len` over chars would miscount). + let err = s.process_frame(now, 2, chunk(1, "héllo")).unwrap_err(); + assert!(matches!(err, OpenStreamError::Sequence(_))); + } + + #[tokio::test] + async fn fail_terminates_stream_and_closed_resolves() { + let now = Instant::now(); + let mut s = make_session("token-explicit-fail", 4, 16); + s.process_frame(now, 1, start()).unwrap(); + s.fail(OpenStreamError::Sequence("synthetic failure".to_string())); + + match s.next().await { + Some(Err(OpenStreamError::Sequence(msg))) => assert!(msg.contains("synthetic")), + other => panic!("expected sequence error, got {other:?}"), + } + // `closed()` resolves to `()` (the error rode the stream, not `closed`). + s.closed().await; + } + + #[tokio::test] + async fn counts_unread_queued_chunks_against_the_byte_limit() { + let now = Instant::now(); + let s = make_session("token-queued-bytes", 4, 5); + s.process_frame(now, 1, start()).unwrap(); + // chunk 0 flushes immediately → 3 queued bytes counted against the cap. + s.process_frame(now, 2, chunk(0, "abc")).unwrap(); + let err = s.process_frame(now, 3, chunk(1, "def")).unwrap_err(); + assert!(matches!(err, OpenStreamError::Sequence(_))); + } + + #[tokio::test] + async fn releases_queued_byte_budget_after_consume() { + let now = Instant::now(); + let mut s = make_session("token-queued-release", 4, 6); + s.process_frame(now, 1, start()).unwrap(); + s.process_frame(now, 2, chunk(0, "abc")).unwrap(); + s.process_frame(now, 3, chunk(1, "def")).unwrap(); + // 3 + 3 + 1 = 7 > 6 → rejected (progress 4 is consumed by assert_progress). + assert!(matches!( + s.process_frame(now, 4, chunk(2, "g")).unwrap_err(), + OpenStreamError::Sequence(_) + )); + + // Consuming "abc" frees 3 bytes, so the retry (progress 5) now fits. + assert_eq!(s.next().await.unwrap().unwrap(), "abc"); + s.process_frame(now, 5, chunk(2, "g")).unwrap(); + } + + #[tokio::test] + async fn rejects_frames_after_close() { + let now = Instant::now(); + let s = make_session("token-post-close", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + assert_eq!( + s.process_frame(now, 2, close(None)).unwrap(), + FrameOutcome::Closed + ); + let err = s.process_frame(now, 3, chunk(0, "late")).unwrap_err(); + assert!(matches!(err, OpenStreamError::Sequence(_))); + } + + #[tokio::test] + async fn rejects_frames_after_abort() { + let now = Instant::now(); + let s = make_session("token-post-abort", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + s.process_frame( + now, + 2, + OpenStreamFrame::Abort { + reason: Some("boom".to_string()), + }, + ) + .unwrap(); + assert!(matches!( + s.process_frame(now, 3, chunk(0, "late")).unwrap_err(), + OpenStreamError::Sequence(_) + )); + assert!(matches!( + s.process_frame(now, 4, close(None)).unwrap_err(), + OpenStreamError::Sequence(_) + )); + } + + #[tokio::test] + async fn rejects_stale_and_duplicate_chunk_indexes() { + let now = Instant::now(); + // Stale: an index below the contiguous frontier (already flushed). + let s = make_session("token-stale", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + s.process_frame(now, 2, chunk(0, "hello")).unwrap(); + assert!(matches!( + s.process_frame(now, 3, chunk(0, "late-duplicate")) + .unwrap_err(), + OpenStreamError::Sequence(_) + )); + + // Duplicate: a still-buffered out-of-order index re-delivered. + let s2 = make_session("token-dup", 8, 1024); + s2.process_frame(now, 1, start()).unwrap(); + s2.process_frame(now, 2, chunk(2, "a")).unwrap(); + assert!(matches!( + s2.process_frame(now, 3, chunk(2, "b")).unwrap_err(), + OpenStreamError::Sequence(_) + )); + } + + #[tokio::test] + async fn requires_all_chunks_through_close_last_chunk_index() { + let now = Instant::now(); + let s = make_session("token-last-chunk-index", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + s.process_frame(now, 2, chunk(0, "hello")).unwrap(); + let err = s.process_frame(now, 3, close(Some(1))).unwrap_err(); + assert!(matches!(err, OpenStreamError::Sequence(_))); + } + + #[tokio::test] + async fn allows_graceful_close_when_last_chunk_index_matches() { + let now = Instant::now(); + let mut s = make_session("token-last-chunk-complete", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + s.process_frame(now, 2, chunk(0, "hello")).unwrap(); + assert_eq!( + s.process_frame(now, 3, close(Some(0))).unwrap(), + FrameOutcome::Closed + ); + assert_eq!(drain_ok(&mut s).await, vec!["hello"]); + s.closed().await; + } + + #[tokio::test] + async fn rejects_malformed_close_last_chunk_index_and_stays_active() { + let now = Instant::now(); + let mut s = make_session("token-malformed-last", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + s.process_frame(now, 2, chunk(0, "hello")).unwrap(); + // lastChunkIndex far larger than anything received → Sequence, but the + // stream is not finalized (a consumer abort can still clean it up). + assert!(matches!( + s.process_frame(now, 3, close(Some(5))).unwrap_err(), + OpenStreamError::Sequence(_) + )); + assert!(s.is_active()); + + s.abort(Some("cleanup".to_string())).await; + // The already-flushed "hello" drains before the terminal abort error. + assert_eq!(s.next().await.unwrap().unwrap(), "hello"); + match s.next().await { + Some(Err(OpenStreamError::Abort { reason, .. })) => { + assert_eq!(reason.as_deref(), Some("cleanup")); + } + other => panic!("expected abort error, got {other:?}"), + } + s.closed().await; + } + + #[tokio::test] + async fn rejects_negative_chunk_index_and_stays_active() { + use crate::transport::open_stream::OpenStreamRegistry; + use serde_json::json; + + // A `chunk` whose `chunkIndex` is a negative JSON number is not a valid + // CEP-41 frame: `chunk_index` is a `u64`, so it fails to deserialize at + // the wire boundary and never becomes a typed `Chunk`. A non-integer + // index is rejected the same way. + let negative = json!({ + "type": "open-stream", + "frameType": "chunk", + "chunkIndex": -1, + "data": "oops", + }); + assert_eq!(OpenStreamFrame::from_cvm_value(&negative), None); + let fractional = json!({ + "type": "open-stream", + "frameType": "chunk", + "chunkIndex": 1.5, + "data": "oops", + }); + assert_eq!(OpenStreamFrame::from_cvm_value(&fractional), None); + + // End to end: unlike a malformed-but-typed `lastChunkIndex` (see + // `rejects_malformed_close_last_chunk_index_and_stays_active`, which the + // session itself rejects), a negative index is rejected one layer out at + // the registry's `parse_frame` boundary with a `Sequence` error, and the + // already-admitted stream is left active (cleanable via a later frame). + let now = Instant::now(); + let mut registry = OpenStreamRegistry::new(); + registry + .process_frame( + now, + &start() + .into_progress_notification("tok-neg", 1, None) + .unwrap(), + ) + .await + .unwrap(); + assert_eq!(registry.size(), 1); + + let bad = JsonRpcNotification { + jsonrpc: "2.0".to_string(), + method: "notifications/progress".to_string(), + params: Some(json!({ + "progressToken": "tok-neg", + "progress": 2, + "cvm": negative, + })), + }; + assert!(matches!( + registry.process_frame(now, &bad).await.unwrap_err(), + OpenStreamError::Sequence(_) + )); + + // The malformed frame neither terminated nor removed the stream. + assert_eq!(registry.size(), 1); + assert!(registry.get_session("tok-neg").unwrap().is_active()); + } + + #[tokio::test] + async fn zero_chunk_close_succeeds() { + let now = Instant::now(); + let mut s = make_session("token-zero-chunk", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + assert_eq!( + s.process_frame(now, 2, close(None)).unwrap(), + FrameOutcome::Closed + ); + assert!(s.next().await.is_none()); + s.closed().await; + } + + #[tokio::test] + async fn chunk_filling_last_gap_after_close_yields_closed() { + let now = Instant::now(); + let mut s = make_session("token-fill-gap", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + // Out-of-order chunk 1 buffered; close declares 1 is the last chunk. + s.process_frame(now, 2, chunk(1, "world")).unwrap(); + assert_eq!( + s.process_frame(now, 3, close(Some(1))).unwrap(), + FrameOutcome::None + ); + // Chunk 0 fills the gap → both flush and the stream closes. + assert_eq!( + s.process_frame(now, 4, chunk(0, "hello ")).unwrap(), + FrameOutcome::Closed + ); + assert_eq!(drain_ok(&mut s).await, vec!["hello ", "world"]); + } + + #[tokio::test] + async fn parked_reader_is_woken_by_an_arriving_chunk() { + let now = Instant::now(); + let mut s = make_session("token-park", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + // No data yet → the manual Stream impl parks (Pending), storing the waker. + assert!(poll!(s.next()).is_pending()); + s.process_frame(now, 2, chunk(0, "x")).unwrap(); + match poll!(s.next()) { + Poll::Ready(Some(Ok(value))) => assert_eq!(value, "x"), + other => panic!("expected the queued chunk, got {other:?}"), + } + } + + #[tokio::test] + async fn consumer_abort_publishes_an_abort_frame_then_finalizes() { + use nostr_sdk::prelude::EventId; + + let now = Instant::now(); + let published: Arc>> = Arc::new(Mutex::new(Vec::new())); + let recorder = published.clone(); + let publish: PublishFrame = Arc::new(move |frame: JsonRpcNotification| { + let recorder = recorder.clone(); + Box::pin(async move { + recorder.lock().unwrap().push(frame); + Ok(EventId::all_zeros()) + }) + }); + let mut s = OpenStreamSession::new(OpenStreamSessionOptions { + progress_token: "token-consumer-abort".to_string(), + max_buffered_chunks: 8, + max_buffered_bytes: 1024, + idle_timeout_ms: 30_000, + probe_timeout_ms: 20_000, + close_grace_period_ms: 5_000, + publish_frame: Some(publish), + }); + s.process_frame(now, 1, start()).unwrap(); + + s.abort(Some("user cancelled".to_string())).await; + + // The injected publisher emitted exactly one `abort` frame to the peer. + { + let frames = published.lock().unwrap(); + assert_eq!(frames.len(), 1); + let cvm = &frames[0].params.as_ref().unwrap()["cvm"]; + assert_eq!(cvm["frameType"], "abort"); + assert_eq!(cvm["reason"], "user cancelled"); + } + + // And the local stream is finalized with the abort error. + match s.next().await { + Some(Err(OpenStreamError::Abort { reason, .. })) => { + assert_eq!(reason.as_deref(), Some("user cancelled")); + } + other => panic!("expected abort error, got {other:?}"), + } + } + + // ── keepalive (pure `tick`, injected clock) ───────────────────── + + #[tokio::test] + async fn ping_frame_requests_a_pong() { + let now = Instant::now(); + let s = make_session("token-ping", 8, 1024); + s.process_frame(now, 1, start()).unwrap(); + assert_eq!( + s.process_frame( + now, + 2, + OpenStreamFrame::Ping { + nonce: "nonce-1".to_string() + } + ) + .unwrap(), + FrameOutcome::SendPong("nonce-1".to_string()) + ); + } + + #[tokio::test] + async fn idle_sends_ping_then_probe_timeout_aborts() { + let t0 = Instant::now(); + let mut s = make_session_timers("token-probe", 10, 10, 100); + s.process_frame(t0, 1, start()).unwrap(); + + // Before the idle threshold: nothing. + assert_eq!(s.tick(t0 + Duration::from_millis(5)), KeepaliveAction::None); + // At the idle threshold: probe with a `{token}:{n}` nonce. + assert_eq!( + s.tick(t0 + Duration::from_millis(10)), + KeepaliveAction::SendPing("token-probe:1".to_string()) + ); + // Probe in flight, deadline (t0+20) not yet reached: nothing. + assert_eq!( + s.tick(t0 + Duration::from_millis(15)), + KeepaliveAction::None + ); + // Probe deadline reached with no pong: abort. + assert_eq!( + s.tick(t0 + Duration::from_millis(20)), + KeepaliveAction::Abort("Probe timeout".to_string()) + ); + + match s.next().await { + Some(Err(OpenStreamError::Abort { reason, .. })) => { + assert_eq!(reason.as_deref(), Some("Probe timeout")); + } + other => panic!("expected probe-timeout abort, got {other:?}"), + } + } + + #[tokio::test] + async fn matching_pong_clears_probe_and_stream_survives() { + let t0 = Instant::now(); + let s = make_session_timers("token-probe-ok", 10, 20, 100); + s.process_frame(t0, 1, start()).unwrap(); + + let nonce = match s.tick(t0 + Duration::from_millis(10)) { + KeepaliveAction::SendPing(nonce) => nonce, + other => panic!("expected a ping, got {other:?}"), + }; + // A matching pong clears the probe and refreshes liveness. + s.process_frame( + t0 + Duration::from_millis(15), + 2, + OpenStreamFrame::Pong { nonce }, + ) + .unwrap(); + + // At the original probe deadline the stream is NOT aborted. + assert!(!matches!( + s.tick(t0 + Duration::from_millis(30)), + KeepaliveAction::Abort(_) + )); + assert!(s.is_active()); + } + + #[tokio::test] + async fn unexpected_pong_is_ignored_for_liveness() { + let t0 = Instant::now(); + let mut s = make_session_timers("token-bad-pong", 10, 10, 100); + s.process_frame(t0, 1, start()).unwrap(); + assert!(matches!( + s.tick(t0 + Duration::from_millis(10)), + KeepaliveAction::SendPing(_) + )); + + // A pong with a non-matching nonce must not clear the pending probe. + s.process_frame( + t0 + Duration::from_millis(12), + 2, + OpenStreamFrame::Pong { + nonce: "unexpected".to_string(), + }, + ) + .unwrap(); + + assert_eq!( + s.tick(t0 + Duration::from_millis(20)), + KeepaliveAction::Abort("Probe timeout".to_string()) + ); + match s.next().await { + Some(Err(OpenStreamError::Abort { .. })) => {} + other => panic!("expected abort, got {other:?}"), + } + } + + #[tokio::test] + async fn close_grace_deadline_with_missing_chunks_aborts() { + let t0 = Instant::now(); + let mut s = make_session_timers("token-grace", 100, 100, 10); + s.process_frame(t0, 1, start()).unwrap(); + // Out-of-order chunk buffered, then a close with the gap unresolved. + s.process_frame(t0, 2, chunk(1, "late")).unwrap(); + assert_eq!( + s.process_frame(t0, 3, close(None)).unwrap(), + FrameOutcome::None + ); + + // Before the grace deadline: nothing. At it: abort. + assert_eq!(s.tick(t0 + Duration::from_millis(5)), KeepaliveAction::None); + assert_eq!( + s.tick(t0 + Duration::from_millis(10)), + KeepaliveAction::Abort("Close grace period expired".to_string()) + ); + match s.next().await { + Some(Err(OpenStreamError::Abort { reason, .. })) => { + assert_eq!(reason.as_deref(), Some("Close grace period expired")); + } + other => panic!("expected grace abort, got {other:?}"), + } + } + + #[tokio::test] + async fn close_with_missing_tail_and_nothing_buffered_fails_immediately_without_grace() { + let t0 = Instant::now(); + let s = make_session_timers("token-no-grace", 100, 100, 10); + s.process_frame(t0, 1, start()).unwrap(); + s.process_frame(t0, 2, chunk(0, "hello")).unwrap(); + // Tail declared (lastChunkIndex=1) but chunk 1 never arrived and nothing + // is buffered → immediate Sequence error, no grace timer armed. + assert!(matches!( + s.process_frame(t0, 3, close(Some(1))).unwrap_err(), + OpenStreamError::Sequence(_) + )); + // No close-grace deadline was armed: even far in the future, tick is inert. + assert_eq!(s.tick(t0 + Duration::from_secs(60)), KeepaliveAction::None); + } +} diff --git a/src/transport/open_stream/writer.rs b/src/transport/open_stream/writer.rs new file mode 100644 index 0000000..0c1b160 --- /dev/null +++ b/src/transport/open_stream/writer.rs @@ -0,0 +1,685 @@ +//! Producer-side writer for a CEP-41 open stream. +//! +//! Ports `sdk/src/transport/open-stream/writer.ts`. A tool emits an ordered +//! sequence of `chunk` frames (plus keepalive `ping`/`pong` and a terminal +//! `close`/`abort`) through an injected publish closure. +//! +//! Serialization design: `write`/`close`/`ping`/`pong` +//! hold a `tokio::sync::Mutex` across their publish `.await`, so **call order == +//! wire order** natively (each op increments `progress`/`chunkIndex` under the +//! lock). The liveness flag lives in a **separate `AtomicBool` outside that +//! lock**, so [`abort`](OpenStreamWriter::abort) can claim the terminal +//! transition and publish without queueing behind a stuck `write`. +//! +//! The handle is `Arc`-backed and `Clone` so it can be inserted into the rmcp +//! request `extensions` typemap (`T: Clone + Send + Sync + 'static`) when the +//! server transport wiring lands. + +use std::sync::atomic::{AtomicBool, AtomicU64, Ordering}; +use std::sync::Arc; + +use futures::future::BoxFuture; +use tokio::sync::Mutex; + +use super::frame::OpenStreamFrame; +use super::session::PublishFrame; + +/// Lifecycle hook fired after a terminal `close` frame is published. +/// +/// Currently inert; the server transport will wire it to flush a deferred final response. +pub type OnCloseHook = Arc BoxFuture<'static, ()> + Send + Sync>; + +/// Lifecycle hook fired after a terminal `abort` frame is published (with the +/// advisory reason). +/// +/// Currently inert; the server transport will wire it to flush a deferred final response. +pub type OnAbortHook = Arc) -> BoxFuture<'static, ()> + Send + Sync>; + +/// Construction options for an [`OpenStreamWriter`]. +pub struct OpenStreamWriterOptions { + /// The stream id (stringified `progressToken`). + pub progress_token: String, + /// Outbound publisher (same seam as the session). + pub publish_frame: PublishFrame, + /// Optional advisory `start` content type (writer-settable, receiver-ignored). + pub content_type: Option, + /// Fired after a terminal `close` frame is published. + pub on_close: Option, + /// Fired after a terminal `abort` frame is published. + pub on_abort: Option, +} + +/// State mutated only under the op `Mutex` (serialized publishes). +struct WriterOpState { + /// Next `chunkIndex` to assign (touched only by `write`). + chunk_index: u64, + /// Control-frame nonce counter (touched only by `ping`). + control_nonce: u64, +} + +struct WriterInner { + progress_token: String, + content_type: Option, + publish_frame: PublishFrame, + on_close: Option, + on_abort: Option, + /// Serializes `write`/`close`/`ping`/`pong` so call order == wire order. + op: Mutex, + /// Monotonic outer `progress`, shared so `abort` can mint one without the op + /// lock. Frames use `fetch_add(1) + 1` → 1, 2, 3, … + progress: AtomicU64, + /// Liveness flag, **outside** the op lock so `abort` never blocks on a stuck + /// write. `false` once closed or aborted. + active: AtomicBool, + /// Whether the lazy `start` frame has been published. + started: AtomicBool, +} + +/// Minimal CEP-41 producer/writer. +#[derive(Clone)] +pub struct OpenStreamWriter { + inner: Arc, +} + +impl OpenStreamWriter { + /// Create a new writer from explicit options. + pub fn new(options: OpenStreamWriterOptions) -> Self { + Self { + inner: Arc::new(WriterInner { + progress_token: options.progress_token, + content_type: options.content_type, + publish_frame: options.publish_frame, + on_close: options.on_close, + on_abort: options.on_abort, + op: Mutex::new(WriterOpState { + chunk_index: 0, + control_nonce: 0, + }), + progress: AtomicU64::new(0), + active: AtomicBool::new(true), + started: AtomicBool::new(false), + }), + } + } + + /// The stream id (stringified `progressToken`). + pub fn progress_token(&self) -> &str { + &self.inner.progress_token + } + + /// Whether the writer is still live (not yet closed/aborted). + /// + /// `true` for any freshly-created writer; see [`has_started`](Self::has_started). + pub fn is_active(&self) -> bool { + self.inner.active.load(Ordering::SeqCst) + } + + /// Whether the writer has begun streaming by publishing its `start` frame. + /// + /// Distinct from [`is_active`](Self::is_active): used to tell apart writers a + /// tool actually streams through from ones created only because the request + /// carried a progress token (the response-deferral guard). + pub fn has_started(&self) -> bool { + self.inner.started.load(Ordering::SeqCst) + } + + /// Mint the next monotonic outer `progress` value (1, 2, 3, …). + fn next_progress(&self) -> u64 { + self.inner.progress.fetch_add(1, Ordering::SeqCst) + 1 + } + + /// Publish the lazy `start` frame on first use. Caller MUST hold the op lock. + /// On a publish failure `started` stays `false`, so a later op retries. + async fn start_internal(&self) -> crate::Result<()> { + if self.inner.started.load(Ordering::SeqCst) || !self.inner.active.load(Ordering::SeqCst) { + return Ok(()); + } + let notification = OpenStreamFrame::Start { + content_type: self.inner.content_type.clone(), + } + .into_progress_notification( + &self.inner.progress_token, + self.next_progress(), + None, + )?; + (self.inner.publish_frame)(notification).await?; + self.inner.started.store(true, Ordering::SeqCst); + Ok(()) + } + + /// Explicitly publish the `start` frame (idempotent; lazy on first `write`). + pub async fn start(&self) -> crate::Result<()> { + let _op = self.inner.op.lock().await; + self.start_internal().await + } + + /// Publish one ordered `chunk` frame, starting the stream lazily. + pub async fn write(&self, data: String) -> crate::Result<()> { + let mut op = self.inner.op.lock().await; + self.start_internal().await?; + if !self.inner.active.load(Ordering::SeqCst) { + return Ok(()); + } + let progress = self.next_progress(); + let chunk_index = op.chunk_index; + let notification = OpenStreamFrame::Chunk { chunk_index, data } + .into_progress_notification(&self.inner.progress_token, progress, None)?; + (self.inner.publish_frame)(notification).await?; + op.chunk_index += 1; + Ok(()) + } + + /// Publish a keepalive `ping` carrying a fresh `{token}:{n}` nonce. + pub async fn ping(&self) -> crate::Result<()> { + let mut op = self.inner.op.lock().await; + if !self.inner.active.load(Ordering::SeqCst) { + return Ok(()); + } + op.control_nonce += 1; + let nonce = format!("{}:{}", self.inner.progress_token, op.control_nonce); + let progress = self.next_progress(); + let notification = OpenStreamFrame::Ping { nonce }.into_progress_notification( + &self.inner.progress_token, + progress, + None, + )?; + (self.inner.publish_frame)(notification).await?; + Ok(()) + } + + /// Publish a `pong` echoing the peer's `ping` nonce. + pub async fn pong(&self, nonce: String) -> crate::Result<()> { + let _op = self.inner.op.lock().await; + if !self.inner.active.load(Ordering::SeqCst) { + return Ok(()); + } + let progress = self.next_progress(); + let notification = OpenStreamFrame::Pong { nonce }.into_progress_notification( + &self.inner.progress_token, + progress, + None, + )?; + (self.inner.publish_frame)(notification).await?; + Ok(()) + } + + /// Close the stream gracefully. Declares `lastChunkIndex` iff any chunks were + /// written. Runs [`on_close`](OpenStreamWriterOptions::on_close) **after** the + /// frame is published (even on publish failure); propagates the publish error. + pub async fn close(&self) -> crate::Result<()> { + let op = self.inner.op.lock().await; + self.start_internal().await?; + // Claim the terminal transition atomically; lose to a racing abort. + if !self.inner.active.swap(false, Ordering::SeqCst) { + return Ok(()); + } + let last_chunk_index = if op.chunk_index > 0 { + Some(op.chunk_index - 1) + } else { + None + }; + let notification = OpenStreamFrame::Close { last_chunk_index }.into_progress_notification( + &self.inner.progress_token, + self.next_progress(), + None, + )?; + let publish_result = (self.inner.publish_frame)(notification).await; + if let Some(hook) = &self.inner.on_close { + hook().await; + } + publish_result.map(|_| ()) + } + + /// Abort the stream (terminal). Claims the terminal transition without the op + /// lock, so it never waits on a stuck `write`. Runs + /// [`on_abort`](OpenStreamWriterOptions::on_abort) **after** the frame is + /// published (even on publish failure); propagates the publish error. + /// Idempotent: a second `abort` (or one after `close`) is a no-op. + pub async fn abort(&self, reason: Option) -> crate::Result<()> { + // Claim the terminal transition; no op lock → never blocks on a write. + if !self.inner.active.swap(false, Ordering::SeqCst) { + return Ok(()); + } + let notification = OpenStreamFrame::Abort { + reason: reason.clone(), + } + .into_progress_notification( + &self.inner.progress_token, + self.next_progress(), + None, + )?; + let publish_result = (self.inner.publish_frame)(notification).await; + if let Some(hook) = &self.inner.on_abort { + hook(reason).await; + } + publish_result.map(|_| ()) + } +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::core::types::JsonRpcNotification; + use crate::Error; + use nostr_sdk::prelude::EventId; + use std::sync::Mutex as StdMutex; + + type FrameLog = Arc>>; + + fn frame_log() -> FrameLog { + Arc::new(StdMutex::new(Vec::new())) + } + + /// A publish closure that records every frame and returns a dummy id. + fn recording_publisher(log: FrameLog) -> PublishFrame { + Arc::new(move |frame: JsonRpcNotification| { + let log = log.clone(); + Box::pin(async move { + log.lock().unwrap().push(frame); + Ok(EventId::all_zeros()) + }) + }) + } + + fn frame_type(notification: &JsonRpcNotification) -> String { + notification.params.as_ref().unwrap()["cvm"]["frameType"] + .as_str() + .unwrap() + .to_string() + } + + fn frame_types(log: &FrameLog) -> Vec { + log.lock().unwrap().iter().map(frame_type).collect() + } + + fn progress_of(notification: &JsonRpcNotification) -> u64 { + notification.params.as_ref().unwrap()["progress"] + .as_u64() + .unwrap() + } + + fn cvm(notification: &JsonRpcNotification) -> &serde_json::Value { + ¬ification.params.as_ref().unwrap()["cvm"] + } + + fn writer_with(log: FrameLog) -> OpenStreamWriter { + OpenStreamWriter::new(OpenStreamWriterOptions { + progress_token: "tok".to_string(), + publish_frame: recording_publisher(log), + content_type: None, + on_close: None, + on_abort: None, + }) + } + + #[tokio::test] + async fn has_started_reflects_start_or_chunk_frame() { + let log = frame_log(); + let writer = OpenStreamWriter::new(OpenStreamWriterOptions { + progress_token: "token-started".to_string(), + publish_frame: recording_publisher(log), + content_type: None, + on_close: None, + on_abort: None, + }); + + assert!(writer.is_active()); + assert!(!writer.has_started()); + + // Control frames do not start the stream. + writer.ping().await.unwrap(); + writer.pong("nonce".to_string()).await.unwrap(); + assert!(!writer.has_started()); + + writer.write("hello".to_string()).await.unwrap(); + assert!(writer.has_started()); + } + + #[tokio::test] + async fn has_started_after_explicit_start() { + let log = frame_log(); + let writer = writer_with(log.clone()); + assert!(!writer.has_started()); + + writer.start().await.unwrap(); + + assert!(writer.has_started()); + assert_eq!(frame_types(&log), vec!["start"]); + } + + #[tokio::test] + async fn emits_ping_and_pong_with_matching_nonces() { + let log = frame_log(); + let writer = OpenStreamWriter::new(OpenStreamWriterOptions { + progress_token: "token-keepalive".to_string(), + publish_frame: recording_publisher(log.clone()), + content_type: None, + on_close: None, + on_abort: None, + }); + + writer.start().await.unwrap(); + writer.ping().await.unwrap(); + writer.pong("keepalive-nonce".to_string()).await.unwrap(); + + let frames = log.lock().unwrap(); + assert_eq!(frames.len(), 3); + assert_eq!(progress_of(&frames[1]), 2); + assert_eq!(cvm(&frames[1])["frameType"], "ping"); + assert_eq!(cvm(&frames[1])["nonce"], "token-keepalive:1"); + assert_eq!(progress_of(&frames[2]), 3); + assert_eq!(cvm(&frames[2])["frameType"], "pong"); + assert_eq!(cvm(&frames[2])["nonce"], "keepalive-nonce"); + } + + #[tokio::test] + async fn close_omits_last_chunk_index_when_no_chunks() { + let log = frame_log(); + let writer = writer_with(log.clone()); + writer.close().await.unwrap(); + + let frames = log.lock().unwrap(); + assert_eq!(frames.len(), 2); + assert_eq!(frame_type(&frames[1]), "close"); + assert!(!cvm(&frames[1]) + .as_object() + .unwrap() + .contains_key("lastChunkIndex")); + } + + #[tokio::test] + async fn close_includes_last_chunk_index_after_chunks() { + let log = frame_log(); + let writer = writer_with(log.clone()); + writer.write("hello".to_string()).await.unwrap(); + writer.write("world".to_string()).await.unwrap(); + writer.close().await.unwrap(); + + let frames = log.lock().unwrap(); + assert_eq!(frames.len(), 4); + assert_eq!(frame_type(&frames[3]), "close"); + assert_eq!(cvm(&frames[3])["lastChunkIndex"], 1); + } + + #[tokio::test] + async fn lifecycle_hooks_fire_after_terminal_frames() { + let lifecycle = Arc::new(StdMutex::new(Vec::::new())); + let log = frame_log(); + + let lc = lifecycle.clone(); + let on_close: OnCloseHook = Arc::new(move || { + let lc = lc.clone(); + Box::pin(async move { + lc.lock().unwrap().push("close".to_string()); + }) + }); + let writer = OpenStreamWriter::new(OpenStreamWriterOptions { + progress_token: "token-hooks".to_string(), + publish_frame: recording_publisher(log.clone()), + content_type: None, + on_close: Some(on_close), + on_abort: None, + }); + writer.close().await.unwrap(); + assert_eq!(frame_type(log.lock().unwrap().last().unwrap()), "close"); + assert_eq!(*lifecycle.lock().unwrap(), vec!["close"]); + + let lc = lifecycle.clone(); + let on_abort: OnAbortHook = Arc::new(move |reason: Option| { + let lc = lc.clone(); + Box::pin(async move { + lc.lock() + .unwrap() + .push(format!("abort:{}", reason.unwrap_or_default())); + }) + }); + let abort_writer = OpenStreamWriter::new(OpenStreamWriterOptions { + progress_token: "token-hooks-abort".to_string(), + publish_frame: recording_publisher(log.clone()), + content_type: None, + on_close: None, + on_abort: Some(on_abort), + }); + abort_writer.abort(Some("done".to_string())).await.unwrap(); + let frames = log.lock().unwrap(); + assert_eq!(frame_type(frames.last().unwrap()), "abort"); + assert_eq!(cvm(frames.last().unwrap())["reason"], "done"); + assert_eq!(*lifecycle.lock().unwrap(), vec!["close", "abort:done"]); + } + + #[tokio::test] + async fn publishes_abort_before_running_abort_hook() { + let events = Arc::new(StdMutex::new(Vec::::new())); + + let ev = events.clone(); + let publish: PublishFrame = Arc::new(move |frame: JsonRpcNotification| { + let ev = ev.clone(); + Box::pin(async move { + ev.lock() + .unwrap() + .push(format!("publish:{}", frame_type(&frame))); + Ok(EventId::all_zeros()) + }) + }); + let ev = events.clone(); + let on_abort: OnAbortHook = Arc::new(move |reason: Option| { + let ev = ev.clone(); + Box::pin(async move { + ev.lock() + .unwrap() + .push(format!("abort:{}", reason.unwrap_or_default())); + }) + }); + let writer = OpenStreamWriter::new(OpenStreamWriterOptions { + progress_token: "token-abort-order".to_string(), + publish_frame: publish, + content_type: None, + on_close: None, + on_abort: Some(on_abort), + }); + + writer.abort(Some("ordered".to_string())).await.unwrap(); + assert_eq!( + *events.lock().unwrap(), + vec!["publish:abort", "abort:ordered"] + ); + } + + #[tokio::test] + async fn retries_start_when_first_start_publish_fails() { + let log = frame_log(); + let fail_start = Arc::new(AtomicBool::new(true)); + + let f = log.clone(); + let fs = fail_start.clone(); + let publish: PublishFrame = Arc::new(move |frame: JsonRpcNotification| { + let f = f.clone(); + let fs = fs.clone(); + Box::pin(async move { + if frame_type(&frame) == "start" && fs.swap(false, Ordering::SeqCst) { + return Err(Error::Transport("relay unavailable".to_string())); + } + f.lock().unwrap().push(frame); + Ok(EventId::all_zeros()) + }) + }); + let writer = OpenStreamWriter::new(OpenStreamWriterOptions { + progress_token: "token-start-retry".to_string(), + publish_frame: publish, + content_type: None, + on_close: None, + on_abort: None, + }); + + assert!(writer.start().await.is_err()); + writer.write("hello".to_string()).await.unwrap(); + assert_eq!(frame_types(&log), vec!["start", "chunk"]); + } + + #[tokio::test] + async fn runs_close_cleanup_when_close_publish_fails() { + let lifecycle = Arc::new(StdMutex::new(Vec::::new())); + let publish: PublishFrame = Arc::new(move |frame: JsonRpcNotification| { + Box::pin(async move { + if frame_type(&frame) == "close" { + return Err(Error::Transport("close publish failed".to_string())); + } + Ok(EventId::all_zeros()) + }) + }); + let lc = lifecycle.clone(); + let on_close: OnCloseHook = Arc::new(move || { + let lc = lc.clone(); + Box::pin(async move { + lc.lock().unwrap().push("close".to_string()); + }) + }); + let writer = OpenStreamWriter::new(OpenStreamWriterOptions { + progress_token: "token-close-fail".to_string(), + publish_frame: publish, + content_type: None, + on_close: Some(on_close), + on_abort: None, + }); + + assert!(writer.close().await.is_err()); + assert!(!writer.is_active()); + assert_eq!(*lifecycle.lock().unwrap(), vec!["close"]); + } + + #[tokio::test] + async fn runs_abort_cleanup_when_abort_publish_fails() { + let lifecycle = Arc::new(StdMutex::new(Vec::::new())); + let publish: PublishFrame = Arc::new(move |frame: JsonRpcNotification| { + Box::pin(async move { + if frame_type(&frame) == "abort" { + return Err(Error::Transport("abort publish failed".to_string())); + } + Ok(EventId::all_zeros()) + }) + }); + let lc = lifecycle.clone(); + let on_abort: OnAbortHook = Arc::new(move |reason: Option| { + let lc = lc.clone(); + Box::pin(async move { + lc.lock() + .unwrap() + .push(format!("abort:{}", reason.unwrap_or_default())); + }) + }); + let writer = OpenStreamWriter::new(OpenStreamWriterOptions { + progress_token: "token-abort-fail".to_string(), + publish_frame: publish, + content_type: None, + on_close: None, + on_abort: Some(on_abort), + }); + + assert!(writer.abort(Some("cleanup".to_string())).await.is_err()); + assert!(!writer.is_active()); + assert_eq!(*lifecycle.lock().unwrap(), vec!["abort:cleanup"]); + } + + #[tokio::test] + async fn abort_deactivates_without_waiting_for_a_stuck_write() { + let lifecycle = Arc::new(StdMutex::new(Vec::::new())); + let reached = Arc::new(tokio::sync::Notify::new()); + let gate = Arc::new(tokio::sync::Notify::new()); + + let r = reached.clone(); + let g = gate.clone(); + let publish: PublishFrame = Arc::new(move |frame: JsonRpcNotification| { + let r = r.clone(); + let g = g.clone(); + Box::pin(async move { + if frame_type(&frame) == "chunk" { + // Signal that the write has reached the (stuck) chunk publish, + // then block until released. + r.notify_one(); + g.notified().await; + } + Ok(EventId::all_zeros()) + }) + }); + let lc = lifecycle.clone(); + let on_abort: OnAbortHook = Arc::new(move |reason: Option| { + let lc = lc.clone(); + Box::pin(async move { + lc.lock() + .unwrap() + .push(format!("abort:{}", reason.unwrap_or_default())); + }) + }); + let writer = OpenStreamWriter::new(OpenStreamWriterOptions { + progress_token: "token-stuck".to_string(), + publish_frame: publish, + content_type: None, + on_close: None, + on_abort: Some(on_abort), + }); + + let writer2 = writer.clone(); + let write_handle = tokio::spawn(async move { writer2.write("hello".to_string()).await }); + + // Wait until the write is parked inside the stuck chunk publish. + reached.notified().await; + + // Abort must complete without acquiring the op lock the stuck write holds. + writer + .abort(Some("stuck publish".to_string())) + .await + .unwrap(); + assert!(!writer.is_active()); + assert_eq!(*lifecycle.lock().unwrap(), vec!["abort:stuck publish"]); + + // Release the stuck write so the spawned task can finish cleanly. + gate.notify_one(); + write_handle.await.unwrap().unwrap(); + } + + #[tokio::test] + async fn serializes_concurrent_writes_before_close() { + let log = frame_log(); + let f = log.clone(); + let publish: PublishFrame = Arc::new(move |frame: JsonRpcNotification| { + let f = f.clone(); + Box::pin(async move { + // A small delay on chunks would expose any interleaving if the op + // lock did not serialize build+publish. + if frame_type(&frame) == "chunk" { + tokio::time::sleep(std::time::Duration::from_millis(5)).await; + } + f.lock().unwrap().push(frame); + Ok(EventId::all_zeros()) + }) + }); + let writer = OpenStreamWriter::new(OpenStreamWriterOptions { + progress_token: "token-concurrent".to_string(), + publish_frame: publish, + content_type: None, + on_close: None, + on_abort: None, + }); + + let (a, b, c) = tokio::join!( + writer.write("hello".to_string()), + writer.write("world".to_string()), + writer.close() + ); + a.unwrap(); + b.unwrap(); + c.unwrap(); + + let frames = log.lock().unwrap(); + let types: Vec = frames.iter().map(frame_type).collect(); + assert_eq!(types, vec!["start", "chunk", "chunk", "close"]); + assert_eq!(progress_of(&frames[1]), 2); + assert_eq!(cvm(&frames[1])["chunkIndex"], 0); + assert_eq!(cvm(&frames[1])["data"], "hello"); + assert_eq!(progress_of(&frames[2]), 3); + assert_eq!(cvm(&frames[2])["chunkIndex"], 1); + assert_eq!(cvm(&frames[2])["data"], "world"); + assert_eq!(progress_of(&frames[3]), 4); + assert_eq!(cvm(&frames[3])["lastChunkIndex"], 1); + } +} diff --git a/src/transport/server/mod.rs b/src/transport/server/mod.rs index 7455869..ddb12d4 100644 --- a/src/transport/server/mod.rs +++ b/src/transport/server/mod.rs @@ -29,6 +29,7 @@ use crate::encryption; use crate::relay::{RelayPool, RelayPoolTrait}; use crate::transport::base::BaseTransport; use crate::transport::discovery_tags::learn_peer_capabilities; +use crate::transport::open_stream::OpenStreamConfig; use crate::transport::oversized_transfer::{ build_oversized_frames, progress_token_string, resolve_safe_chunk_size, OversizedFrame, OversizedSenderOptions, OversizedTransferConfig, OversizedTransferReceiver, TransferPolicy, @@ -106,6 +107,12 @@ pub struct NostrServerTransportConfig { pub profile_metadata: Option, /// CEP-22 oversized payload transfer configuration. Enabled by default. pub oversized_transfer: OversizedTransferConfig, + /// CEP-41 open-stream configuration. Disabled by default (opt-in). + /// + /// **Data only in PR1** — the event loop does not consult it yet; activation + /// (capability advertisement, learning, response deferral, the keepalive + /// sweep) lands in PR2. + pub open_stream: OpenStreamConfig, } impl Default for NostrServerTransportConfig { @@ -127,6 +134,7 @@ impl Default for NostrServerTransportConfig { publish_relay_list: true, profile_metadata: None, oversized_transfer: OversizedTransferConfig::default(), + open_stream: OpenStreamConfig::default(), } } } @@ -249,6 +257,13 @@ impl NostrServerTransportConfig { self.oversized_transfer.enabled = enabled; self } + /// Set the full CEP-41 open-stream configuration. + /// + /// Data only in PR1: the event loop does not read this until PR2. + pub fn with_open_stream(mut self, config: OpenStreamConfig) -> Self { + self.open_stream = config; + self + } } /// An incoming MCP request with metadata for routing the response. diff --git a/src/transport/server/session_store.rs b/src/transport/server/session_store.rs index daf8141..12dfb67 100644 --- a/src/transport/server/session_store.rs +++ b/src/transport/server/session_store.rs @@ -112,6 +112,7 @@ impl SessionStore { supports_encryption: s.supports_encryption, supports_ephemeral_encryption: s.supports_ephemeral_encryption, supports_oversized_transfer: s.supports_oversized_transfer, + supports_open_stream: s.supports_open_stream, }) } @@ -168,6 +169,7 @@ impl SessionStore { supports_encryption: s.supports_encryption, supports_ephemeral_encryption: s.supports_ephemeral_encryption, supports_oversized_transfer: s.supports_oversized_transfer, + supports_open_stream: s.supports_open_stream, }, ) }) @@ -247,6 +249,8 @@ pub struct SessionSnapshot { pub supports_ephemeral_encryption: bool, /// Whether the peer advertised CEP-22 oversized-transfer support (learned, gated by server config) pub supports_oversized_transfer: bool, + /// Whether the peer advertised CEP-41 open-stream support (learned, gated by server config) + pub supports_open_stream: bool, } #[cfg(test)] @@ -374,6 +378,7 @@ mod tests { assert!(!snap.supports_encryption); assert!(!snap.supports_ephemeral_encryption); assert!(!snap.supports_oversized_transfer); + assert!(!snap.supports_open_stream); // Learned capabilities must round-trip through the snapshot. { @@ -382,12 +387,14 @@ mod tests { session.supports_encryption = true; session.supports_ephemeral_encryption = true; session.supports_oversized_transfer = true; + session.supports_open_stream = true; } let snap = store.get_session("client-1").await.unwrap(); assert!(snap.supports_encryption); assert!(snap.supports_ephemeral_encryption); assert!(snap.supports_oversized_transfer); + assert!(snap.supports_open_stream); // get_all_sessions exposes the same fields. let all = store.get_all_sessions().await; @@ -395,6 +402,7 @@ mod tests { assert!(snap_all.supports_encryption); assert!(snap_all.supports_ephemeral_encryption); assert!(snap_all.supports_oversized_transfer); + assert!(snap_all.supports_open_stream); } #[tokio::test] From 2d7ef59f1897303c7779e9a5fed4b841d969a7a4 Mon Sep 17 00:00:00 2001 From: Aljaz Ceru Date: Tue, 23 Jun 2026 17:10:33 +0400 Subject: [PATCH 110/116] last but not least --- contextvm-ffi/src/uniffi_types.rs | 244 ++++++++++++++++++++++-------- 1 file changed, 185 insertions(+), 59 deletions(-) diff --git a/contextvm-ffi/src/uniffi_types.rs b/contextvm-ffi/src/uniffi_types.rs index 4b81594..d2ae890 100644 --- a/contextvm-ffi/src/uniffi_types.rs +++ b/contextvm-ffi/src/uniffi_types.rs @@ -240,6 +240,97 @@ fn parse_json_rpc(json: &str) -> Result }) } +type IncomingRx = + Arc>>; +type MessageRx = + Arc>>; + +fn channel_closed() -> FfiError { + FfiError { + code: crate::error::ErrorCode::Transport, + message: "channel closed".into(), + } +} + +fn recv_timeout_error() -> FfiError { + FfiError { + code: crate::error::ErrorCode::Timeout, + message: "receive timed out".into(), + } +} + +fn recv_incoming(rx: IncomingRx) -> Result { + global_runtime() + .block_on(async { + let mut guard = rx.lock().await; + guard.recv().await + }) + .map(|req| incoming_to_uniffi(&req)) + .ok_or_else(channel_closed) +} + +fn recv_incoming_timeout(rx: IncomingRx, timeout_secs: u64) -> Result { + match global_runtime().block_on(async { + tokio::time::timeout(Duration::from_secs(timeout_secs), async { + let mut guard = rx.lock().await; + guard.recv().await + }) + .await + }) { + Ok(Some(req)) => Ok(incoming_to_uniffi(&req)), + Ok(None) => Err(channel_closed()), + Err(_) => Err(recv_timeout_error()), + } +} + +fn recv_incoming_try(rx: IncomingRx) -> Result, FfiError> { + let mut guard = match rx.try_lock() { + Ok(guard) => guard, + Err(_) => return Ok(None), + }; + match guard.try_recv() { + Ok(req) => Ok(Some(incoming_to_uniffi(&req))), + Err(tokio::sync::mpsc::error::TryRecvError::Empty) => Ok(None), + Err(tokio::sync::mpsc::error::TryRecvError::Disconnected) => Err(channel_closed()), + } +} + +fn recv_message(rx: MessageRx) -> Result { + global_runtime() + .block_on(async { + let mut guard = rx.lock().await; + guard.recv().await + }) + .map(|msg| message_to_uniffi(&msg)) + .ok_or_else(channel_closed) +} + +fn recv_message_timeout(rx: MessageRx, timeout_secs: u64) -> Result { + match global_runtime().block_on(async { + tokio::time::timeout(Duration::from_secs(timeout_secs), async { + let mut guard = rx.lock().await; + guard.recv().await + }) + .await + }) { + Ok(Some(msg)) => Ok(message_to_uniffi(&msg)), + Ok(None) => Err(channel_closed()), + Err(_) => Err(recv_timeout_error()), + } +} + +fn recv_message_try(rx: MessageRx) -> Result, FfiError> { + let mut guard = match rx.try_lock() { + Ok(guard) => guard, + Err(_) => return Ok(None), + }; + match guard.try_recv() { + Ok(msg) => Ok(Some(message_to_uniffi(&msg))), + Err(tokio::sync::mpsc::error::TryRecvError::Empty) => Ok(None), + Err(tokio::sync::mpsc::error::TryRecvError::Disconnected) => Err(channel_closed()), + } +} + fn tool_to_uniffi(tool: crate::discovery::DiscoveredToolRecord) -> DiscoveredTool { DiscoveredTool { provider_pubkey: tool.provider_pubkey, @@ -430,17 +521,17 @@ impl Server { /// Receive the next incoming request. Blocks until one is available. pub fn recv(&self) -> Result { - let rx = self.receiver.clone(); - global_runtime() - .block_on(async { - let mut guard = rx.lock().await; - guard.recv().await - }) - .map(|req| incoming_to_uniffi(&req)) - .ok_or_else(|| FfiError { - code: crate::error::ErrorCode::Transport, - message: "channel closed".into(), - }) + recv_incoming(self.receiver.clone()) + } + + /// Receive the next incoming request, timing out after `timeout_secs`. + pub fn recv_timeout(&self, timeout_secs: u64) -> Result { + recv_incoming_timeout(self.receiver.clone(), timeout_secs) + } + + /// Return the next incoming request if one is already buffered. + pub fn recv_try(&self) -> Result, FfiError> { + recv_incoming_try(self.receiver.clone()) } /// Send a response for a given event ID. @@ -663,17 +754,17 @@ impl Client { /// Receive the next response. Blocks until one is available. pub fn recv(&self) -> Result { - let rx = self.receiver.clone(); - global_runtime() - .block_on(async { - let mut guard = rx.lock().await; - guard.recv().await - }) - .map(|msg| message_to_uniffi(&msg)) - .ok_or_else(|| FfiError { - code: crate::error::ErrorCode::Transport, - message: "channel closed".into(), - }) + recv_message(self.receiver.clone()) + } + + /// Receive the next response, timing out after `timeout_secs`. + pub fn recv_timeout(&self, timeout_secs: u64) -> Result { + recv_message_timeout(self.receiver.clone(), timeout_secs) + } + + /// Return the next response if one is already buffered. + pub fn recv_try(&self) -> Result, FfiError> { + recv_message_try(self.receiver.clone()) } /// Return a snapshot of server capabilities learned from discovery tags. @@ -786,17 +877,17 @@ impl Gateway { /// Receive the next incoming request. pub fn recv(&self) -> Result { - let rx = self.receiver.clone(); - global_runtime() - .block_on(async { - let mut guard = rx.lock().await; - guard.recv().await - }) - .map(|req| incoming_to_uniffi(&req)) - .ok_or_else(|| FfiError { - code: crate::error::ErrorCode::Transport, - message: "channel closed".into(), - }) + recv_incoming(self.receiver.clone()) + } + + /// Receive the next incoming request, timing out after `timeout_secs`. + pub fn recv_timeout(&self, timeout_secs: u64) -> Result { + recv_incoming_timeout(self.receiver.clone(), timeout_secs) + } + + /// Return the next incoming request if one is already buffered. + pub fn recv_try(&self) -> Result, FfiError> { + recv_incoming_try(self.receiver.clone()) } /// Send a response for a given event ID. @@ -910,36 +1001,17 @@ impl Proxy { /// Receive the next response or notification. pub fn recv(&self) -> Result { - let rx = self.receiver.clone(); - global_runtime() - .block_on(async { - let mut guard = rx.lock().await; - guard.recv().await - }) - .map(|msg| message_to_uniffi(&msg)) - .ok_or_else(|| FfiError { - code: crate::error::ErrorCode::Transport, - message: "channel closed".into(), - }) + recv_message(self.receiver.clone()) } /// Receive the next response or notification, timing out after `timeout_secs`. pub fn recv_timeout(&self, timeout_secs: u64) -> Result { - let rx = self.receiver.clone(); - match global_runtime().block_on(async { - let mut guard = rx.lock().await; - tokio::time::timeout(Duration::from_secs(timeout_secs), guard.recv()).await - }) { - Ok(Some(msg)) => Ok(message_to_uniffi(&msg)), - Ok(None) => Err(FfiError { - code: crate::error::ErrorCode::Transport, - message: "channel closed".into(), - }), - Err(_) => Err(FfiError { - code: crate::error::ErrorCode::Timeout, - message: "receive timed out".into(), - }), - } + recv_message_timeout(self.receiver.clone(), timeout_secs) + } + + /// Return the next response or notification if one is already buffered. + pub fn recv_try(&self) -> Result, FfiError> { + recv_message_try(self.receiver.clone()) } /// Check if the proxy is active. @@ -1109,3 +1181,57 @@ pub fn make_response(id: String, result: String) -> String { }); serde_json::to_string(&msg).unwrap_or_default() } + +#[cfg(test)] +mod tests { + use super::*; + + fn request() -> contextvm_sdk::JsonRpcMessage { + contextvm_sdk::JsonRpcMessage::Request(contextvm_sdk::JsonRpcRequest { + jsonrpc: "2.0".to_string(), + id: serde_json::json!("1"), + method: "ping".to_string(), + params: None, + }) + } + + #[test] + fn recv_message_try_returns_none_then_buffered_message() { + let (tx, rx) = tokio::sync::mpsc::unbounded_channel(); + let rx = Arc::new(tokio::sync::Mutex::new(rx)); + + assert!(recv_message_try(rx.clone()).unwrap().is_none()); + tx.send(request()).unwrap(); + + let msg = recv_message_try(rx).unwrap().unwrap(); + assert_eq!(msg.method, "ping"); + } + + #[test] + fn recv_message_timeout_reports_timeout() { + let (_tx, rx) = tokio::sync::mpsc::unbounded_channel(); + let err = recv_message_timeout(Arc::new(tokio::sync::Mutex::new(rx)), 0).unwrap_err(); + + assert_eq!(err.code, crate::error::ErrorCode::Timeout); + } + + #[test] + fn recv_message_timeout_includes_lock_wait() { + let (_tx, rx) = tokio::sync::mpsc::unbounded_channel(); + let rx = Arc::new(tokio::sync::Mutex::new(rx)); + let _guard = global_runtime().block_on(rx.lock()); + + let err = recv_message_timeout(rx.clone(), 0).unwrap_err(); + + assert_eq!(err.code, crate::error::ErrorCode::Timeout); + } + + #[test] + fn recv_message_try_does_not_wait_for_lock() { + let (_tx, rx) = tokio::sync::mpsc::unbounded_channel(); + let rx = Arc::new(tokio::sync::Mutex::new(rx)); + let _guard = global_runtime().block_on(rx.lock()); + + assert!(recv_message_try(rx.clone()).unwrap().is_none()); + } +} From 21555ceb3b550c01d754b9d5614fa0789ba06b8d Mon Sep 17 00:00:00 2001 From: Aljaz Ceru Date: Tue, 23 Jun 2026 20:38:29 +0400 Subject: [PATCH 111/116] chore(ffi): untrack compiled c-tests/test_ffi binary --- contextvm-ffi/c-tests/test_ffi | Bin 27720 -> 0 bytes 1 file changed, 0 insertions(+), 0 deletions(-) delete mode 100755 contextvm-ffi/c-tests/test_ffi diff --git a/contextvm-ffi/c-tests/test_ffi b/contextvm-ffi/c-tests/test_ffi deleted file mode 100755 index a25bcb596cd619f5613b730555dc18d6e11da6c2..0000000000000000000000000000000000000000 GIT binary patch literal 0 HcmV?d00001 literal 27720 zcmeHweSB2ang6*nxye9)gqJ`7EdzprlF17%1vMH76DCSX2#EzPJ4|LK$!IbY=Y_XQ zp$4`_nl7|kYj7F4IeD28U;DlI~Zb)+3ViDwJM@($k^P z@+#E+B%jbEZ0GQ+g!}C9pO8oXSs!I=?m0BY*y-SH2Rg*ZB=of2WlHb*S4XzZ_ zh^O2uY&#{LDL+Z2ll;{`T(L*obR@6$<}a+fxpB?%+iu#tv$!qPw0L20TcD^d6i#d@ z+OlME(c*=!Sj1Jv&7lDLgeS}S8N`Gj9$l{nUul=Iq3<_9QFZk}0)*!r#F4}w5ey|? zH4OjXhvAc-o%pj}lZUZqJ_MasVbK4EzoG28V;KJKVfZJ9;pYuw&xgavyN8kAH;nvK z!|*R32It@~@}C%nUksdCNW0|ndRy8fVQ(z%i^jcP;jM0{@dkp?U`r?#4@MhmD%&FA zV1uuzEhy85O!04O_qGRPF<(p2+Z+uB1u^ajZjE_65>0I(KgF5X5shrw>h-sJqe1^B zZ#>i&JXpSL*__O*q! z0R-^zW)kmiVn1eEm!yen$qM=LN*XwIzeE9_`HEnZbucQ`bEid^Pppw7nVp z+?2Es_h<0OWbhAU@KJ%O>!A$(xD;22LmB+M4E~V}zHTFw+>^l{pCNxTgRhzbr=H5- z)AMQM8u7r02Sz+F;(@;|54@N6u@5|*Z#z7D%olGI!n3<4ZcCo>biUwto(q~>Gz;wH zoY}bN&8QG0-%2Tc=aR`}^IoRuLEQIRnx+Xs-*ai29>{%eDnmi2IhOX?g(nm8EHV@b=A0)AYdYn~fbj{*8scV4;6*p-)@rS1j~# z3;m3Re!@aOVxb?j&|kCA_YI;;e_h@6>fd;}&UrfD?5}HZm-dvt=;b24Y~GBWB=@`uAs=G-MNJgU`_R+X z?|Jq&H+r5OuzQT-o>xDNPXfT@3c!&(EB&nXseSG&pMzwPxTew5S^mNGh`JS%r1D>u#zo&D1zldjh_PF~m z=AcMV;%k*>Pt5>~ew?CR&w09DIYPzhef>|#eoJbSX{%w=ob1EoEl6YjGl z>gjf$^>m%+odvTzUG83>_rf=ck9)eu1_`y>j379=fHhx%sLUaX9QK$it{0-S$LKPz zL!|FG<29aTjIPrJd!2-pwkH+>^kxYhKUO?nxoXSg36-e}S4phVm zWs*dBeL7HhPcrS>8sz|?xEQ6o;9V$qx{iCg-st@bnWnJchl;fNMDG^LXODXz z;JHRREN=GB2Jg?h^MSuL1l-ySbKtf{awS~LZdgc|UGDz9R^aa;<3YgraQJ#Q5~Wtw z-AC4Sxd+ey1_V2?h9tVpA5BB?*I0^w=0B+T|9q`-;@1(m_zBORMuI~-VtWEWL=@ocB&o-aPkN{Pn}SHvmb3Z$OZnR=0UU zv0jiYk~*VUhb3!(;Z*~CfzrCo-%N#VO%~hU{eX)3{8ClSqlok!B^lL#scc`A`j3#l z-=cq*^*goxHbgFN=ghkcR?DWXH7C)?P64gw8G0g; 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charset=UTF-8 Content-Transfer-Encoding: 8bit CEP-41 (#97) added contextvm_sdk::Error::OpenStream, which the non-exhaustive match in ErrorCode::from didn't cover — breaking `cargo check --all --all-features` on main after the FFI bindings merge. Map it to ErrorCode::Transport. OpenStreamError is transport-layer sequencing/policy/abort, and its module doc states it mirrors OversizedTransferError, which is mapped the same way (1f9bdb7). The C header exposes no dedicated code. --- contextvm-ffi/src/error.rs | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/contextvm-ffi/src/error.rs b/contextvm-ffi/src/error.rs index ba333a9..d2f477b 100644 --- a/contextvm-ffi/src/error.rs +++ b/contextvm-ffi/src/error.rs @@ -39,6 +39,10 @@ impl From<&contextvm_sdk::Error> for ErrorCode { // CEP-22 oversized-transfer failures are transport-layer // framing/reassembly issues, so they surface as CVM_TRANSPORT. contextvm_sdk::Error::OversizedTransfer(_) => ErrorCode::Transport, + // CEP-41 open-stream failures (sequencing/policy/abort) are likewise + // transport-layer, so they surface as CVM_TRANSPORT. The C header + // exposes no dedicated code; mirrors `OversizedTransfer`. + contextvm_sdk::Error::OpenStream(_) => ErrorCode::Transport, contextvm_sdk::Error::Other(_) => ErrorCode::Other, } } From bc2e188927fa8aa000c255515c6ba41bdf993b99 Mon Sep 17 00:00:00 2001 From: ContextVM Date: Tue, 23 Jun 2026 19:20:35 +0200 Subject: [PATCH 113/116] ci: add CI and FFI workflows for rs-sdk workspace Add CI workflow for linting, testing, and MSRV checks. Add FFI workflow for cross-platform builds, C tests, and release packaging. --- .github/workflows/ci.yml | 67 ++++++++ .github/workflows/ffi.yml | 183 ++++++++++++++++++++ .github/workflows/integration.yml | 31 ---- .github/workflows/rust.yml | 77 --------- AGENTS.md | 268 ++++++++++++++++++++++++++++++ sdk | 2 +- 6 files changed, 519 insertions(+), 109 deletions(-) create mode 100644 .github/workflows/ci.yml create mode 100644 .github/workflows/ffi.yml delete mode 100644 .github/workflows/integration.yml delete mode 100644 .github/workflows/rust.yml create mode 100644 AGENTS.md diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml new file mode 100644 index 0000000..8ec8029 --- /dev/null +++ b/.github/workflows/ci.yml @@ -0,0 +1,67 @@ +name: CI + +# Quality gates for the Rust SDK + FFI workspace. +# Runs on every push/PR to main and on version tags. FFI artifact/release +# packaging lives in ffi.yml. + +on: + push: + branches: [main] + tags: ['v*'] + pull_request: + branches: [main] + +env: + CARGO_TERM_COLOR: always + RUST_BACKTRACE: 1 + +jobs: + lint: + name: fmt + clippy + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + with: + components: rustfmt, clippy + - uses: Swatinem/rust-cache@v2 + - name: rustfmt + run: cargo fmt --all -- --check + - name: clippy (all features) + run: cargo clippy --all --all-features --all-targets -- -D warnings + + test: + name: check + test + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + - uses: Swatinem/rust-cache@v2 + - name: check (all features) + run: cargo check --all --all-features + - name: test (all features) + # Includes the FFI crate. `nak-tests` no-ops when the `nak` CLI is + # absent from PATH (see contextvm-ffi/Cargo.toml). + run: cargo test --all --all-features + - name: test (no default features) + run: cargo test --no-default-features + - name: doc + run: cargo doc --no-deps --all-features + - name: rmcp integration example + run: cargo run --example rmcp_integration_test --features rmcp -- local + + msrv: + name: MSRV 1.88 + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@1.88 + - uses: Swatinem/rust-cache@v2 + # Regenerate the lockfile so dependencies resolve to versions that still + # support the declared MSRV (1.88). + - name: Remove lockfile + run: rm -f Cargo.lock + - name: check + run: cargo check --all-features + - name: test + run: cargo test --all-features diff --git a/.github/workflows/ffi.yml b/.github/workflows/ffi.yml new file mode 100644 index 0000000..7118d0b --- /dev/null +++ b/.github/workflows/ffi.yml @@ -0,0 +1,183 @@ +name: FFI + +# Cross-platform build, C-test, and release packaging for the ContextVM FFI +# bindings (C header + UniFFI Python/Swift/Kotlin surfaces). +# +# On push/PR to main: builds every target, runs the C test suite, and +# generates UniFFI bindings as a verification step. +# On version tags (v*): additionally assembles per-platform release archives +# and uploads them to the GitHub Release. + +on: + push: + branches: [main] + tags: ['v*'] + pull_request: + branches: [main] + workflow_dispatch: + +env: + CARGO_TERM_COLOR: always + +jobs: + build: + name: build ${{ matrix.target }} + runs-on: ${{ matrix.os }} + strategy: + fail-fast: false + matrix: + include: + - os: ubuntu-latest + target: x86_64-unknown-linux-gnu + libs: 'libcontextvm_ffi.so libcontextvm_ffi.a' + archive: tar.gz + - os: macos-latest + target: aarch64-apple-darwin + libs: 'libcontextvm_ffi.dylib libcontextvm_ffi.a' + archive: tar.gz + - os: macos-13 + target: x86_64-apple-darwin + libs: 'libcontextvm_ffi.dylib libcontextvm_ffi.a' + archive: tar.gz + - os: windows-latest + target: x86_64-pc-windows-msvc + libs: 'contextvm_ffi.dll contextvm_ffi.dll.lib contextvm_ffi.lib' + archive: zip + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + with: + targets: ${{ matrix.target }} + - uses: Swatinem/rust-cache@v2 + with: + key: ffi-${{ matrix.target }} + - name: Build FFI (release) + run: cargo build --release -p contextvm-ffi --target ${{ matrix.target }} + - name: Stage artifacts + shell: bash + run: | + set -euo pipefail + STAGE="stage/contextvm-ffi" + mkdir -p "$STAGE/lib" "$STAGE/include" + for f in ${{ matrix.libs }}; do + cp "target/${{ matrix.target }}/release/$f" "$STAGE/lib/" + done + cp contextvm-ffi/headers/contextvm.h "$STAGE/include/" + cp contextvm-ffi/README.md "$STAGE/" + - name: Archive (tar.gz) + if: matrix.archive == 'tar.gz' + run: tar -czf contextvm-ffi-${{ matrix.target }}.tar.gz -C stage contextvm-ffi + - name: Archive (zip) + if: matrix.archive == 'zip' + shell: pwsh + run: Compress-Archive -Path stage/contextvm-ffi -DestinationPath contextvm-ffi-${{ matrix.target }}.zip + - uses: actions/upload-artifact@v4 + with: + name: contextvm-ffi-${{ matrix.target }} + path: contextvm-ffi-${{ matrix.target }}.* + retention-days: 14 + + build-macos-universal: + name: build macOS universal + runs-on: macos-latest + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + with: + targets: aarch64-apple-darwin,x86_64-apple-darwin + - uses: Swatinem/rust-cache@v2 + with: + key: ffi-macos-universal + - name: Build arm64 + run: cargo build --release -p contextvm-ffi --target aarch64-apple-darwin + - name: Build x86_64 + run: cargo build --release -p contextvm-ffi --target x86_64-apple-darwin + - name: Create universal libraries + shell: bash + run: | + set -euo pipefail + STAGE="stage/contextvm-ffi" + mkdir -p "$STAGE/lib" "$STAGE/include" + lipo -create \ + target/aarch64-apple-darwin/release/libcontextvm_ffi.dylib \ + target/x86_64-apple-darwin/release/libcontextvm_ffi.dylib \ + -output "$STAGE/lib/libcontextvm_ffi.dylib" + lipo -create \ + target/aarch64-apple-darwin/release/libcontextvm_ffi.a \ + target/x86_64-apple-darwin/release/libcontextvm_ffi.a \ + -output "$STAGE/lib/libcontextvm_ffi.a" + cp contextvm-ffi/headers/contextvm.h "$STAGE/include/" + cp contextvm-ffi/README.md "$STAGE/" + tar -czf contextvm-ffi-universal-apple-darwin.tar.gz -C stage contextvm-ffi + - uses: actions/upload-artifact@v4 + with: + name: contextvm-ffi-universal-apple-darwin + path: contextvm-ffi-universal-apple-darwin.tar.gz + retention-days: 14 + + c-tests: + name: C tests + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + - uses: Swatinem/rust-cache@v2 + with: + key: ffi-c-tests + # The C test suite is the only check that the hand-written contextvm.h + # header matches the Rust extern "C" signatures. It links against the + # built FFI library and exercises keys, errors, memory frees, and config + # structs directly from C. Linux-only because the c-tests/Makefile links + # with -ldl/-lm; signature consistency is platform-independent, and the + # macOS build jobs already confirm the dylib links on Darwin. + - name: Build and run C tests + run: make -C contextvm-ffi/c-tests test + + bindings: + name: UniFFI bindings (python/swift/kotlin) + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + - uses: Swatinem/rust-cache@v2 + with: + key: ffi-bindings + - name: Build FFI library (for embedded metadata) + run: cargo build -p contextvm-ffi + - name: Install uniffi-bindgen-cli + run: cargo install uniffi-bindgen-cli --version 0.29 --locked + - name: Generate bindings + run: | + set -euo pipefail + LIB=target/debug/libcontextvm_ffi.so + for lang in python swift kotlin; do + uniffi-bindgen generate "$LIB" --library \ + --language "$lang" --out-dir "bindings/$lang" + done + - uses: actions/upload-artifact@v4 + with: + name: contextvm-ffi-bindings + path: bindings/ + retention-days: 14 + + release: + name: release + if: startsWith(github.ref, 'refs/tags/v') + needs: [build, build-macos-universal, c-tests, bindings] + runs-on: ubuntu-latest + permissions: + contents: write + steps: + - uses: actions/download-artifact@v4 + with: + path: artifacts + - name: Package bindings + run: tar -czf contextvm-ffi-bindings.tar.gz -C artifacts/contextvm-ffi-bindings . + - name: Publish to GitHub Release + uses: softprops/action-gh-release@v2 + with: + generate_release_notes: true + files: | + artifacts/contextvm-ffi-*/*.tar.gz + artifacts/contextvm-ffi-*/*.zip + contextvm-ffi-bindings.tar.gz diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml deleted file mode 100644 index b55e77c..0000000 --- a/.github/workflows/integration.yml +++ /dev/null @@ -1,31 +0,0 @@ -name: Integration Tests - -on: - push: - branches: ["main"] - pull_request: - branches: ["main"] - -env: - CARGO_TERM_COLOR: always - -jobs: - integration: - name: Integration tests - runs-on: ubuntu-latest - - steps: - - name: Checkout - uses: actions/checkout@v4 - - - name: Install Rust - uses: dtolnay/rust-toolchain@stable - - - name: Cache dependencies - uses: Swatinem/rust-cache@v2 - - - name: Run unit and local integration tests - run: cargo test --all-features - - - name: Run integration example (local RMCP) - run: cargo run --example rmcp_integration_test --features rmcp -- local diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml deleted file mode 100644 index ab73c36..0000000 --- a/.github/workflows/rust.yml +++ /dev/null @@ -1,77 +0,0 @@ -name: Rust CI - -on: - push: - branches: ["main"] - pull_request: - branches: ["main"] - -env: - CARGO_TERM_COLOR: always - -jobs: - ci: - runs-on: ubuntu-latest - - steps: - - name: Checkout - uses: actions/checkout@v4 - - - name: Install Rust - uses: dtolnay/rust-toolchain@stable - - - name: Cache dependencies - uses: Swatinem/rust-cache@v2 - - - name: Check - run: cargo check --all --all-features - - - name: Test - run: cargo test --all --all-features - - - name: Format check - run: cargo fmt --all -- --check - - - name: Clippy - run: cargo clippy --all --all-features -- -D warnings - - - name: Doc check - run: cargo doc --no-deps --all-features - - - name: Build - run: cargo build --verbose - - - name: Check (no-default-features) - run: cargo check --no-default-features - - - name: Test (no-default-features) - run: cargo test --no-default-features - - - name: Check (default features) - run: cargo check - - - name: Test (default features) - run: cargo test - - msrv: - name: MSRV (Rust 1.88) - runs-on: ubuntu-latest - - steps: - - name: Checkout - uses: actions/checkout@v4 - - - name: Install Rust 1.88 - uses: dtolnay/rust-toolchain@1.88 - - - name: Cache dependencies - uses: Swatinem/rust-cache@v2 - - - name: Remove incompatible lockfile - run: rm -f Cargo.lock - - - name: Check - run: cargo check --all-features - - - name: Test - run: cargo test --all-features \ No newline at end of file diff --git a/AGENTS.md b/AGENTS.md new file mode 100644 index 0000000..45f9a21 --- /dev/null +++ b/AGENTS.md @@ -0,0 +1,268 @@ +# AGENTS.md + +Guide for AI coding agents working on the ContextVM Rust SDK (`contextvm-sdk`) +and its FFI bindings crate (`contextvm-ffi`). Read this before making changes. + +## Project Overview + +`contextvm-sdk` is the Rust implementation of the **ContextVM protocol** — +**MCP (Model Context Protocol) over Nostr**. It lets MCP servers and clients +talk over the Nostr network with decentralized discovery, cryptographic +identity (NIP-06 keys, NIP-44 encryption, NIP-59 gift wrap), and optional +end-to-end encryption. + +This repository is a **Cargo workspace** with two members: + +| Crate | Path | Purpose | +|-------|------|---------| +| `contextvm-sdk` | `.` (root) | The SDK itself. Published to crates.io. | +| `contextvm-ffi` | `contextvm-ffi/` | FFI bindings for C / Python / Swift / Kotlin consumers. | + +- **Repository**: `https://github.com/ContextVM/rs-sdk` +- **MSRV**: `1.88` (declared in `Cargo.toml` as `rust-version`) +- **License**: MIT +- **Current `contextvm-sdk` version**: see `Cargo.toml` / `CHANGELOG.md` + +## Architecture + +``` +┌──────────────────────────────────────────────────────────┐ +│ Your Application │ +├──────────────┬───────────────┬────────────────────────────┤ +│ Gateway │ Proxy │ Discovery │ +│ (server → │ (nostr → │ (find servers & │ +│ nostr) │ client) │ capabilities) │ +├──────────────┴───────────────┴────────────────────────────┤ +│ Transport Layer │ +│ NostrServerTransport / NostrClientTransport │ +├───────────────────────────────────────────────────────────┤ +│ Core │ Encryption │ Relay │ Signer │ Oversized │ +│ (types, │ (NIP-44, │ (pool │ (key │ Transfer │ +│ RPC, │ NIP-59) │ mgmt) │ mgmt) │ + OpenStr │ +│ valid.) │ │ │ │ │ +├─────────┴────────────────┴───────────┴───────────┴──────────┤ +│ Nostr Network (relays) │ +└───────────────────────────────────────────────────────────┘ +``` + +### Source layout (`src/`) + +| Module | Responsibility | +|--------|----------------| +| `core/` | JSON-RPC 2.0 message types, validation, top-level `Error` enum. | +| `signer/` | Nostr key management (generate / from secret / public / secret hex). | +| `relay/` | Relay pool connection management. `MockRelayPool` lives here (behind `test-utils`). | +| `encryption/` | NIP-44 encryption + NIP-59 gift wrap (kinds `1059` / `21059`). | +| `transport/` | `NostrServerTransport` + `NostrClientTransport` (the core engines). | +| `transport/oversized_transfer/` | CEP-22 chunked reassembly for large payloads. | +| `transport/open_stream/` | CEP-41 open-stream engine (frame, session, sequencing). | +| `discovery/` | Discover servers, tools, provider profiles (kinds `11316`–`11320`). | +| `gateway/` | `NostrMCPGateway` — bridges a local MCP server onto Nostr (server side). | +| `proxy/` | `NostrMCPProxy` — bridges a local MCP client to a remote Nostr server (client side). | +| `rmcp_transport/` | Native RMCP integration (`rmcp` feature). | + +### Protocol (Nostr kinds) + +| Kind | Name | Type | CEP | +|------|------|------|-----| +| `25910` | ContextVM Messages | Ephemeral | base | +| `1059` | Gift Wrap (NIP-59) | Regular | — | +| `21059` | Ephemeral Gift Wrap | Ephemeral | CEP-19 | +| `10002` | Relay List Metadata | Replaceable | CEP-17 | +| `11316`–`11320` | Announcement / Tools / Resources / Templates / Prompts | Addressable | discovery | + +Messages route via `p` tags (recipient) and correlate via `e` tags (request event id). +See `README.md` and `DESIGN.md` for full protocol detail; per-area docs live in `docs/`. + +### Cargo features + +- `default = ["rmcp"]` — native RMCP transport on by default. +- `rmcp` — enables the `rmcp` git dependency and `rmcp_transport` module. +- `test-utils` — exposes `MockRelayPool` for downstream integration tests. + +## Setup & Commands + +```bash +# Build everything (SDK + FFI) +cargo build + +# Full quality gate (what CI runs) — MUST pass before merge +cargo fmt --all -- --check +cargo clippy --all --all-features --all-targets -- -D warnings +cargo check --all --all-features +cargo test --all --all-features +cargo doc --no-deps --all-features + +# Also verify it builds/tests with rmcp disabled +cargo test --no-default-features +``` + +### Testing strategy + +- **Unit tests** (`#[cfg(test)] mod tests` inside each module) — fast, hermetic. +- **Conformance tests** (`tests/conformance_*.rs`) — wire-format, dedup, signer, + stateless mode, stores. Pure, no network. +- **Integration tests** (`tests/e2e_happy_path.rs`, `transport_integration.rs`, + `oversized_timeout_e2e.rs`) — require `rmcp` + `test-utils`; run a full in-memory + stack via `MockRelayPool` (no live network). +- **FFI tests** (`contextvm-ffi/tests/e2e_ffi_*.rs`) — exercise the FFI surface + end-to-end through the C ABI. +- **`nak-tests` feature** (FFI): the `e2e_ffi_nak_relay` test spawns the external + `nak` CLI relay. It is **off by default**; with `--all-features` it compiles and + **no-ops** (stderr note, not a failure) when `nak` is absent from `PATH`. Do not + make this test hard-fail on a missing binary. + +Run a single test by name: + +```bash +cargo test --all-features +cargo test --all-features --test e2e_happy_path +``` + +### Examples + +`examples/` contains runnable references: `discovery.rs`, `gateway.rs`, +`proxy.rs`, `rmcp_integration_test.rs`, `native_echo_server.rs`, +`native_echo_client.rs`. The last three require the `rmcp` feature. + +## The FFI Subsystem (`contextvm-ffi/`) + +This is the crate most likely to break in subtle ways. Understand it before +touching it. + +### What it is + +A **translation layer** exposing the Rust SDK to non-Rust languages. Two +independent binding surfaces over the same SDK: + +1. **Hand-written C ABI** — `headers/contextvm.h` + `#[no_mangle] extern "C"` + functions in `src/types.rs` / `src/channel.rs`. For C/C++, and Swift via a + C module map. +2. **UniFFI proc-macros** — `src/uniffi_types.rs`. Auto-generates idiomatic + Python / Swift / Kotlin objects. + +`Cargo.toml` declares `crate-type = ["cdylib", "staticlib", "lib"]` so the same +crate produces a dynamic lib (`.so`/`.dylib`/`.dll`), a static lib +(`.a`/`.lib`), and a Rust rlib (for tests/docs). + +### The three pillars + +| Pillar | File | Job | +|--------|------|-----| +| Global Tokio runtime | `src/runtime.rs` | One lazily-initialized `Runtime` (`OnceLock`). Foreign callers never see `async`; every FFI fn does `global_runtime().block_on(...)`. Never shut down. | +| Handle table | `src/kv.rs` | Global `HashMap>`. Foreign code gets opaque integer `CvmHandle { id }`; real Rust objects live in the table. | +| Error bridge | `src/error.rs` | Maps the SDK's rich `Error` enum → 9 flat `CvmErrorCode` ints. | + +### THE maintenance contract — read this + +**The FFI is a living contract that must track the SDK.** The canonical +incident: CEP-41 added `contextvm_sdk::Error::OpenStream`; the FFI's `match` in +`src/error.rs` didn't cover it; CI broke (`error[E0004]: non-exhaustive +patterns`). This is a recurring pattern, not a one-off. + +**The explicit, non-wildcard `match` is intentional** — it forces a compile +error when the SDK adds an `Error` variant, so a new variant can never silently +fall through to `Other`. Do NOT replace it with a `_ =>` wildcard. + +**When the SDK changes, check these three sync points:** + +1. **`src/error.rs`** — `ErrorCode::from(&Error)`. Add a match arm for any new + `Error` variant and map it to the right `CvmErrorCode` (add a new `CVM_*` + constant in `headers/contextvm.h` only if warranted). +2. **`src/uniffi_types.rs`** — every `Record`/`Enum`/`Object` mirrors an SDK + type. If the SDK type gains a field, the mirror needs it or data is dropped. +3. **`headers/contextvm.h`** — hand-maintained. Adding/renameing/reordering an + `extern "C"` fn or changing a struct requires editing the header to match, + or C consumers get silent memory corruption. + +### ABI stability rules + +These are part of the public ABI; **never** change them in a patch release: + +- `CvmErrorCode` numeric values (`CVM_TRANSPORT = 1`, …). Only **append** new + codes; never renumber. +- Struct field **order** in `contextvm.h`. Only append fields; never reorder. +- Function signatures. Adding functions is fine; changing/removing is breaking. + +### FFI memory model + +- Foreign callers MUST free every Rust-owned thing returned through the C ABI + with the matching `cvm_*_free` function (`cvm_string_free`, `cvm_message_free`, + `cvm_error_free`, `cvm_keys_free`, etc.). The free functions are null-safe. +- The handle table grows unboundedly if callers don't free. This is per-call + leakage, not catastrophic — but the free requirement must stay documented. +- UniFFI consumers (Python/Swift/Kotlin) get automatic memory management. + +### FFI build & test + +```bash +# Build the bindings library +cargo build --release -p contextvm-ffi + +# Generate UniFFI language bindings (needs uniffi-bindgen-cli 0.29) +uniffi-bindgen generate target/debug/libcontextvm_ffi.so \ + --library --language python --out-dir python/ # or kotlin / swift + +# C test suite — verifies the hand-written header matches Rust signatures +cd contextvm-ffi/c-tests && make test +``` + +The C test suite (`contextvm-ffi/c-tests/test_ffi.c`) is the **only** check that +`contextvm.h` stays in sync with the Rust `extern "C"` surface — keep it in CI +and extend it when you add C functions. + +## Code Style + +- Rust 2021 edition, MSRV 1.88. +- `cargo fmt` formatting is enforced (CI fails on drift). +- `cargo clippy --all --all-features -- -D warnings` is enforced (zero warnings). +- Public items require doc comments (`#![warn(missing_docs)]` is in effect for + the FFI crate; keep new public SDK items documented too). +- Tests are required for new functionality — add or update tests even if not + asked. + +## CI / Release + +Workflows live in `.github/workflows/`: + +- **`ci.yml`** — quality gates (fmt, clippy, check, test all-features, + no-default-features, doc, rmcp integration example, MSRV 1.88). Runs on + push/PR to `main` and on `v*` tags. +- **`ffi.yml`** — FFI packaging. Builds per-platform native libraries + (linux x86_64, macOS arm64/x86_64/universal, Windows x86_64), runs the C + test suite, generates UniFFI bindings, and on `v*` tags uploads archives to + the GitHub Release. Release archives bundle the native lib + static lib + + `contextvm.h` + README per target; bindings ship as a separate archive. + +**Releasing**: push a `v*` tag. The FFI workflow assembles and uploads +artifacts automatically; `ci.yml` + `ffi.yml` must both be green. + +## Pull Request Guidelines + +- Run the full quality gate before pushing: + `cargo fmt --all -- --check && cargo clippy --all --all-features --all-targets -- -D warnings && cargo test --all --all-features` +- If you touched `src/core/error.rs` or the SDK error enum, **also** update + `contextvm-ffi/src/error.rs` and verify the FFI still compiles + (`cargo check --all --all-features`). +- If you touched an SDK type exposed via FFI, update `src/uniffi_types.rs` and + `contextvm-ffi/headers/contextvm.h`, and extend `c-tests/test_ffi.c`. +- Commit messages: conventional-style (`feat:`, `fix:`, `docs:`, `chore:`, + `refactor:`) with a scope when helpful (e.g. `fix(ffi): …`). +- Update `CHANGELOG.md` for user-visible changes. + +## Gotchas + +- **Non-exhaustive `Error` match in the FFI is intentional** — it makes SDK + additions a loud compile error instead of silent misclassification. Add the + arm; don't wildcard. +- **`headers/contextvm.h` is hand-written** and drifts silently. The C test + suite is the safety net — never disable it. +- **`recv_try` returns `Ok(None)` on mutex contention**, not only on empty — a + deliberate non-blocking semantic (see `src/uniffi_types.rs`). +- **The global FFI runtime never shuts down** (intentional). Fine for long-lived + hosts; embeds in short-lived CLIs pay a few MB of resident threads. +- **MSRV job regenerates `Cargo.lock`** — don't commit dependency bumps that + require a newer compiler without bumping `rust-version`. +- **The `sdk/` path** (if present) is a sibling reference used during some + cross-repo work and is not part of this crate's build graph; ignore it unless + explicitly working on it. diff --git a/sdk b/sdk index 7a0c5c3..572926d 160000 --- a/sdk +++ b/sdk @@ -1 +1 @@ -Subproject commit 7a0c5c398c8ffcc6b07ddb181c67a29b77dc3cb4 +Subproject commit 572926d78adb11ec488aaedd4a377ea2ea4070bd From 9066afe8a480bceb09d725951e6a2298c43c9a3b Mon Sep 17 00:00:00 2001 From: ContextVM Date: Tue, 23 Jun 2026 19:45:22 +0200 Subject: [PATCH 114/116] chore(deps): adopt official rmcp 1.8 from crates.io, retire fork Replace the ContextVM-org/rust-sdk git fork pin with the upstream rmcp 1.8 release, which now ships the transport-worker feature this crate needs. Migrate the 0.x tool_router stored-field pattern to the 1.x macro pattern across tests/examples: #[tool_handler] now generates the dispatch wiring, so the ToolRouter field (and its initializer and imports) is dead and removed. Verified: fmt, clippy (-D warnings), check/test --all-features (468+ tests, tool routing confirmed functional via test_local_rmcp), no-default-features, and FFI build all green. --- AGENTS.md | 9 +++++++++ Cargo.toml | 2 +- examples/native_echo_server.rs | 13 ++++--------- examples/rmcp_integration_test.rs | 4 ---- src/rmcp_transport/pipeline_tests.rs | 16 ++++++---------- tests/e2e_happy_path.rs | 7 ++----- tests/integration.rs | 7 ++----- tests/oversized_timeout_e2e.rs | 9 ++------- 8 files changed, 26 insertions(+), 41 deletions(-) diff --git a/AGENTS.md b/AGENTS.md index 45f9a21..d481cd3 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -263,6 +263,15 @@ artifacts automatically; `ci.yml` + `ffi.yml` must both be green. hosts; embeds in short-lived CLIs pay a few MB of resident threads. - **MSRV job regenerates `Cargo.lock`** — don't commit dependency bumps that require a newer compiler without bumping `rust-version`. +- **`rmcp` is sourced from crates.io (`1.8`)**, not the old + `ContextVM-org/rust-sdk` fork. The fork carried a `progress-aware-request-timeouts` + branch (with the `transport-worker` feature this crate needs); that work shipped + upstream in the official `modelcontextprotocol/rust-sdk`, so the git fork pin was + retired. When upgrading `rmcp`, note the 1.x macro pattern: `#[tool_router]` + + `#[tool_handler]` generate the tool dispatch wiring — **do not** store a + `tool_router: ToolRouter` field on the handler struct (it's dead in 1.x and + trips `dead_code`). The fork's old 0.x-style stored-field pattern was removed + during the migration; keep it removed. - **The `sdk/` path** (if present) is a sibling reference used during some cross-repo work and is not part of this crate's build graph; ignore it unless explicitly working on it. diff --git a/Cargo.toml b/Cargo.toml index 0426c56..d199f39 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -38,7 +38,7 @@ nostr-sdk = { version = "0.43", features = ["nip59"] } tracing = "0.1" # Optional MCP integration (Rust equivalent to TS @modelcontextprotocol/sdk) -rmcp = { git = "https://github.com/ContextVM-org/rust-sdk", branch = "progress-aware-request-timeouts", features = ["server", "client", "macros", "transport-worker"], optional = true } +rmcp = { version = "1.8", features = ["server", "client", "macros", "transport-worker"], optional = true } # LRU cache for gift-wrap (outer event id) deduplication lru = "0.12" diff --git a/examples/native_echo_server.rs b/examples/native_echo_server.rs index aedbcb5..b731864 100644 --- a/examples/native_echo_server.rs +++ b/examples/native_echo_server.rs @@ -7,9 +7,8 @@ use anyhow::Result; use contextvm_sdk::transport::server::{NostrServerTransport, NostrServerTransportConfig}; use contextvm_sdk::{signer, EncryptionMode, GiftWrapMode, ServerInfo}; use rmcp::{ - handler::server::{router::tool::ToolRouter, wrapper::Parameters}, - model::*, - schemars, tool, tool_handler, tool_router, ServerHandler, ServiceExt, + handler::server::wrapper::Parameters, model::*, schemars, tool, tool_handler, tool_router, + ServerHandler, ServiceExt, }; const RELAY_URL: &str = "wss://relay.contextvm.org"; @@ -20,15 +19,11 @@ struct EchoParams { } #[derive(Clone)] -struct EchoServer { - tool_router: ToolRouter, -} +struct EchoServer {} impl EchoServer { fn new() -> Self { - Self { - tool_router: Self::tool_router(), - } + Self {} } } diff --git a/examples/rmcp_integration_test.rs b/examples/rmcp_integration_test.rs index 4aed4b4..c611625 100644 --- a/examples/rmcp_integration_test.rs +++ b/examples/rmcp_integration_test.rs @@ -85,19 +85,15 @@ struct AddParams { b: i64, } -use rmcp::handler::server::router::tool::ToolRouter; - #[derive(Clone)] struct DemoServer { echo_count: Arc>, - tool_router: ToolRouter, } impl DemoServer { fn new() -> Self { Self { echo_count: Arc::new(Mutex::new(0)), - tool_router: Self::tool_router(), } } } diff --git a/src/rmcp_transport/pipeline_tests.rs b/src/rmcp_transport/pipeline_tests.rs index 209c774..ea1d2cb 100644 --- a/src/rmcp_transport/pipeline_tests.rs +++ b/src/rmcp_transport/pipeline_tests.rs @@ -18,12 +18,12 @@ mod tests { use rmcp::model::{ CallToolRequestParams, CallToolResult, ClientJsonRpcMessage, ClientResult, ErrorData, - Implementation, ProtocolVersion, RequestId, ServerCapabilities, ServerInfo, - ServerJsonRpcMessage, ServerResult, + Implementation, RequestId, ServerCapabilities, ServerInfo, ServerJsonRpcMessage, + ServerResult, }; use rmcp::{ - handler::server::{router::tool::ToolRouter, wrapper::Parameters}, - schemars, tool, tool_handler, tool_router, ClientHandler, ServerHandler, ServiceExt, + handler::server::wrapper::Parameters, schemars, tool, tool_handler, tool_router, + ClientHandler, ServerHandler, ServiceExt, }; use crate::core::serializers; @@ -48,15 +48,11 @@ mod tests { } #[derive(Clone)] - struct StatelessTestServer { - tool_router: ToolRouter, - } + struct StatelessTestServer {} impl StatelessTestServer { fn new() -> Self { - Self { - tool_router: Self::tool_router(), - } + Self {} } } diff --git a/tests/e2e_happy_path.rs b/tests/e2e_happy_path.rs index a6003ca..529dea8 100644 --- a/tests/e2e_happy_path.rs +++ b/tests/e2e_happy_path.rs @@ -16,9 +16,8 @@ use contextvm_sdk::transport::server::{NostrServerTransport, NostrServerTranspor use contextvm_sdk::RelayPoolTrait; use rmcp::{ - handler::server::router::tool::ToolRouter, handler::server::wrapper::Parameters, model::*, - schemars, service::RequestContext, tool, tool_handler, tool_router, ClientHandler, RoleServer, - ServerHandler, ServiceExt, + handler::server::wrapper::Parameters, model::*, schemars, service::RequestContext, tool, + tool_handler, tool_router, ClientHandler, RoleServer, ServerHandler, ServiceExt, }; use tokio::sync::Mutex; @@ -38,14 +37,12 @@ struct AddParams { #[derive(Clone)] struct DemoServer { echo_count: Arc>, - tool_router: ToolRouter, } impl DemoServer { fn new() -> Self { Self { echo_count: Arc::new(Mutex::new(0)), - tool_router: Self::tool_router(), } } } diff --git a/tests/integration.rs b/tests/integration.rs index 3cf3293..c9cafa3 100644 --- a/tests/integration.rs +++ b/tests/integration.rs @@ -5,9 +5,8 @@ #![cfg(feature = "rmcp")] use rmcp::{ - handler::server::router::tool::ToolRouter, handler::server::wrapper::Parameters, model::*, - schemars, service::RequestContext, tool, tool_handler, tool_router, ClientHandler, RoleServer, - ServerHandler, ServiceExt, + handler::server::wrapper::Parameters, model::*, schemars, service::RequestContext, tool, + tool_handler, tool_router, ClientHandler, RoleServer, ServerHandler, ServiceExt, }; use std::sync::Arc; use tokio::sync::Mutex; @@ -28,14 +27,12 @@ struct AddParams { #[derive(Clone)] struct DemoServer { echo_count: Arc>, - tool_router: ToolRouter, } impl DemoServer { fn new() -> Self { Self { echo_count: Arc::new(Mutex::new(0)), - tool_router: Self::tool_router(), } } } diff --git a/tests/oversized_timeout_e2e.rs b/tests/oversized_timeout_e2e.rs index c23e177..108905e 100644 --- a/tests/oversized_timeout_e2e.rs +++ b/tests/oversized_timeout_e2e.rs @@ -25,7 +25,6 @@ use contextvm_sdk::{ PeerRequestOptionsExt, RelayPoolTrait, }; use nostr_sdk::prelude::*; -use rmcp::handler::server::router::tool::ToolRouter; use rmcp::handler::server::wrapper::Parameters; use rmcp::model::{ CallToolRequestParams, CallToolResult, Content, ErrorData, Implementation, RawContent, @@ -286,15 +285,11 @@ struct BigParams { /// rmcp server with one tool: `big(len)` returns a `len`-byte text, driving /// the response over the oversized threshold on demand. #[derive(Clone)] -struct BigServer { - tool_router: ToolRouter, -} +struct BigServer {} impl BigServer { fn new() -> Self { - Self { - tool_router: Self::tool_router(), - } + Self {} } } From ab696ae3a53a8e57d646708fc8760053a74ccba3 Mon Sep 17 00:00:00 2001 From: ContextVM Date: Tue, 23 Jun 2026 19:50:27 +0200 Subject: [PATCH 115/116] ci(ffi): install uniffi-bindgen from git at v0.29.5 UniFFI 0.29.x never published the bindgen CLI to crates.io (the crate is `publish = false` in the Mozilla repo), so `cargo install uniffi-bindgen*` always fails. Install from the git repo instead, pinned to tag v0.29.5 (matches the runtime uniffi = "0.29" metadata format) and targeting the `uniffi-bindgen-cli` workspace member, which produces a binary named `uniffi-bindgen`. Verified end-to-end: the command installs and generates Python/Swift/Kotlin bindings from the built FFI library. --- .github/workflows/ffi.yml | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/.github/workflows/ffi.yml b/.github/workflows/ffi.yml index 7118d0b..6e5a9d7 100644 --- a/.github/workflows/ffi.yml +++ b/.github/workflows/ffi.yml @@ -144,8 +144,12 @@ jobs: key: ffi-bindings - name: Build FFI library (for embedded metadata) run: cargo build -p contextvm-ffi - - name: Install uniffi-bindgen-cli - run: cargo install uniffi-bindgen-cli --version 0.29 --locked + # UniFFI 0.29.x never published the bindgen CLI to crates.io (the crate + # is `publish = false` in the Mozilla repo). Install from git, pinned to + # the tag that matches the runtime `uniffi = "0.29"` metadata format. + # Produces a binary named `uniffi-bindgen`. + - name: Install uniffi-bindgen + run: cargo install --git https://github.com/mozilla/uniffi-rs --tag v0.29.5 uniffi-bindgen-cli --locked - name: Generate bindings run: | set -euo pipefail From 890565c8bf0207d2ec7aa1d3dafd785c8673e0c4 Mon Sep 17 00:00:00 2001 From: ContextVM Date: Wed, 24 Jun 2026 10:06:43 +0200 Subject: [PATCH 116/116] feat: add python examples, upgrade nostr-sdk to 0.44 and uniffi to 0.31 - Bump `nostr-sdk` from 0.43 to 0.44 (no code changes required) - FFI: bump `uniffi` from 0.29 to 0.31, update CI and docs to install `uniffi-bindgen-cli` at tag v0.31.2 and use the renamed binary - Adjust GitHub Actions workflow and AGENTS.md for the new bindgen CLI - Add example Python scripts under `examples/python/` for offline install check, server/tool discovery, and client `tools/list` --- .github/workflows/ffi.yml | 19 +++--- AGENTS.md | 11 +++- CHANGELOG.md | 22 +++++++ Cargo.toml | 2 +- contextvm-ffi/Cargo.toml | 4 +- contextvm-ffi/README.md | 15 ++++- examples/python/.gitignore | 8 +++ examples/python/01_offline_check.py | 63 ++++++++++++++++++++ examples/python/README.md | 92 +++++++++++++++++++++++++++++ examples/python/discover_servers.py | 65 ++++++++++++++++++++ examples/python/proxy_tools_list.py | 68 +++++++++++++++++++++ 11 files changed, 354 insertions(+), 15 deletions(-) create mode 100644 examples/python/.gitignore create mode 100644 examples/python/01_offline_check.py create mode 100644 examples/python/README.md create mode 100644 examples/python/discover_servers.py create mode 100644 examples/python/proxy_tools_list.py diff --git a/.github/workflows/ffi.yml b/.github/workflows/ffi.yml index 6e5a9d7..44eb14a 100644 --- a/.github/workflows/ffi.yml +++ b/.github/workflows/ffi.yml @@ -144,18 +144,23 @@ jobs: key: ffi-bindings - name: Build FFI library (for embedded metadata) run: cargo build -p contextvm-ffi - # UniFFI 0.29.x never published the bindgen CLI to crates.io (the crate - # is `publish = false` in the Mozilla repo). Install from git, pinned to - # the tag that matches the runtime `uniffi = "0.29"` metadata format. - # Produces a binary named `uniffi-bindgen`. - - name: Install uniffi-bindgen - run: cargo install --git https://github.com/mozilla/uniffi-rs --tag v0.29.5 uniffi-bindgen-cli --locked + # The bindgen CLI is `publish = false` in Mozilla's repo, so it is not + # on crates.io for any 0.2x/0.3x release. Install from git, pinned to the + # tag that matches the runtime `uniffi` dependency in + # contextvm-ffi/Cargo.toml. The two MUST stay in lockstep: UniFFI embeds a + # contract version + per-function checksums into both the compiled library + # and the generated language file, and a mismatch aborts at import time + # (`InternalError("UniFFI ... mismatch")`). As of 0.30 the example app + # installs a binary named `uniffi-bindgen-cli` (it was `uniffi-bindgen` + # in 0.29). + - name: Install uniffi-bindgen-cli + run: cargo install --git https://github.com/mozilla/uniffi-rs --tag v0.31.2 uniffi-bindgen-cli --locked - name: Generate bindings run: | set -euo pipefail LIB=target/debug/libcontextvm_ffi.so for lang in python swift kotlin; do - uniffi-bindgen generate "$LIB" --library \ + uniffi-bindgen-cli generate "$LIB" --library \ --language "$lang" --out-dir "bindings/$lang" done - uses: actions/upload-artifact@v4 diff --git a/AGENTS.md b/AGENTS.md index d481cd3..add9878 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -199,8 +199,15 @@ These are part of the public ABI; **never** change them in a patch release: # Build the bindings library cargo build --release -p contextvm-ffi -# Generate UniFFI language bindings (needs uniffi-bindgen-cli 0.29) -uniffi-bindgen generate target/debug/libcontextvm_ffi.so \ +# Generate UniFFI language bindings. The CLI is `publish = false` in Mozilla's +# repo, so install from git at the tag matching the runtime `uniffi` version in +# contextvm-ffi/Cargo.toml. As of uniffi 0.30 the binary is `uniffi-bindgen-cli` +# (it was `uniffi-bindgen` in 0.29). The generated file MUST be paired with a +# library built from the same release: UniFFI embeds a contract version + +# per-function checksums checked at import time. +cargo install --git https://github.com/mozilla/uniffi-rs \ + --tag v0.31.2 uniffi-bindgen-cli --locked +uniffi-bindgen-cli generate target/debug/libcontextvm_ffi.so \ --library --language python --out-dir python/ # or kotlin / swift # C test suite — verifies the hand-written header matches Rust signatures diff --git a/CHANGELOG.md b/CHANGELOG.md index 0b970c5..e1144d1 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,5 +1,27 @@ # Changelog +## [Unreleased] + +### Changed + +- Bumped `nostr-sdk` from `0.43` to `0.44` (pulls core `nostr` `0.44.3`). No source + changes were required: the breaking removals in the unreleased 0.45 line + (`NostrSigner`, `TagKind`, `EventBuilder::sign_with_keys`, `TagStandard`) + are not yet published. The SDK pins `hex` as a direct dependency, so nostr's + internal `hex` module removal in 0.44.0 is unaffected. +- FFI: bumped `uniffi` from `0.29` to `0.31`. This raises the embedded UniFFI + contract version (`29` -> `30`), so the generated `contextvm_ffi.py` / Swift / + Kotlin bindings and the native library must be taken from the same release — + a mismatch now aborts at import time with the bumped contract id. Updated + `.github/workflows/ffi.yml` to install `uniffi-bindgen-cli` at tag `v0.31.2` + and invoke it as `uniffi-bindgen-cli` (renamed from `uniffi-bindgen` in 0.30). + +### Added + +- `examples/python/`: runnable Python examples using the UniFFI binding — an + offline install sanity check, server/tool discovery (mirrors `discovery.rs`), + and a client `tools/list` caller (mirrors `proxy.rs`). + ## [0.1.1] - 2026-05-08 ### Added diff --git a/Cargo.toml b/Cargo.toml index d199f39..8d4a38b 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -32,7 +32,7 @@ async-trait = "0.1" futures = "0.3" # Nostr SDK with NIP-59 (Gift Wrap) support -nostr-sdk = { version = "0.43", features = ["nip59"] } +nostr-sdk = { version = "0.44", features = ["nip59"] } # Logging tracing = "0.1" diff --git a/contextvm-ffi/Cargo.toml b/contextvm-ffi/Cargo.toml index 310cb4c..7e1bf2a 100644 --- a/contextvm-ffi/Cargo.toml +++ b/contextvm-ffi/Cargo.toml @@ -11,10 +11,10 @@ crate-type = ["cdylib", "staticlib", "lib"] [dependencies] contextvm-sdk = { path = ".." } -nostr-sdk = { version = "0.43", features = ["nip59"] } +nostr-sdk = { version = "0.44", features = ["nip59"] } tokio = { version = "1", features = ["full"] } serde_json = "1" -uniffi = "0.29" +uniffi = "0.31" parking_lot = "0.12" [features] diff --git a/contextvm-ffi/README.md b/contextvm-ffi/README.md index 40accba..ce96532 100644 --- a/contextvm-ffi/README.md +++ b/contextvm-ffi/README.md @@ -26,20 +26,29 @@ Outputs: ## Generate UniFFI Bindings Build the shared library first, then generate bindings from the compiled -library metadata using `uniffi-bindgen` 0.29.x: +library metadata. The bindgen version **must match** the runtime `uniffi` +version in `Cargo.toml` — UniFFI embeds a contract version and per-function +checksums into both the library and the generated file, and a mismatch aborts +at import time (`UniFFI ... mismatch`). + +The bindgen CLI is not published to crates.io; install it from git, pinned to +the tag matching your runtime version (`0.31.x` here): ```bash cd contextvm-ffi cargo build -uniffi-bindgen generate target/debug/libcontextvm_ffi.so \ +cargo install --git https://github.com/mozilla/uniffi-rs --tag v0.31.2 uniffi-bindgen-cli --locked + +uniffi-bindgen-cli generate target/debug/libcontextvm_ffi.so \ --library \ - --crate contextvm_ffi \ --language python \ --out-dir python/ ``` Use `--language kotlin` or `--language swift` for the other supported targets. +The generated Python file expects the native library (`libcontextvm_ffi.so` / +`.dylib` / `contextvm_ffi.dll`) to sit **next to it** at import time. ## C API diff --git a/examples/python/.gitignore b/examples/python/.gitignore new file mode 100644 index 0000000..a105440 --- /dev/null +++ b/examples/python/.gitignore @@ -0,0 +1,8 @@ +# Native library and generated binding are release artifacts, not source. +# Obtain them per README.md and drop them in this directory to run the examples. +/libcontextvm_ffi.so +/libcontextvm_ffi.dylib +/contextvm_ffi.dll +/contextvm_ffi.py +__pycache__/ +*.pyc diff --git a/examples/python/01_offline_check.py b/examples/python/01_offline_check.py new file mode 100644 index 0000000..8a62727 --- /dev/null +++ b/examples/python/01_offline_check.py @@ -0,0 +1,63 @@ +#!/usr/bin/env python3 +"""Offline sanity check for the contextvm_ffi Python binding. + +Run this first to confirm the binding and native library are installed and +matched. It exercises only the non-network APIs, so it needs no internet: + + python3 01_offline_check.py + +If this fails with `InternalError("UniFFI ... mismatch")`, the generated +`contextvm_ffi.py` and the native library were taken from different releases +(see README.md). +""" + +import contextvm_ffi as cvm + + +def main() -> None: + print(f"contextvm-ffi version: {cvm.version()}") + + # --- key management -------------------------------------------------- + keys = cvm.Keys.generate() + pubkey = keys.public_key() # 64-char hex + secret = keys.secret_key() # 64-char hex + npub = cvm.pubkey_hex_to_npub(pubkey) # bech32 (npub1...) + + print(f"public key (hex): {pubkey}") + print(f"public key (npub): {npub}") + print(f"secret key (hex): {secret[:16]}...") + + # Round-trip: reconstruct the keypair from its secret hex. + restored = cvm.Keys.from_secret_key(secret) + assert restored.public_key() == pubkey, "key reconstruction failed" + print("key reconstruction from secret: OK") + + # --- JSON-RPC message helpers --------------------------------------- + # These build the JSON strings accepted by Client.send() / + # Server.send_response() / Proxy.send(). + print("\nbuilt request: ", cvm.make_request("1", "tools/list", None)) + print("built tool call: ", cvm.make_request("2", "tools/call", '{"name": "echo"}')) + print("built notification: ", cvm.make_notification("notifications/initialized", None)) + print("built response: ", cvm.make_response("1", '{"tools": []}')) + + # --- config records (construction only; no network) ------------------ + client_config = cvm.ClientConfig( + relay_urls=["wss://relay.damus.io"], + server_pubkey=pubkey, + encryption_mode=cvm.EncryptionMode.OPTIONAL, + gift_wrap_mode=cvm.GiftWrapMode.OPTIONAL, + is_stateless=False, + timeout_secs=30, + discovery_relay_urls=[], + fallback_operational_relay_urls=[], + ) + print( + "\nclient config: server=%s... encryption=%s" + % (client_config.server_pubkey[:16], client_config.encryption_mode) + ) + + print("\nAll offline checks passed. The binding is installed correctly.") + + +if __name__ == "__main__": + main() diff --git a/examples/python/README.md b/examples/python/README.md new file mode 100644 index 0000000..0afb17b --- /dev/null +++ b/examples/python/README.md @@ -0,0 +1,92 @@ +# Python examples for the ContextVM FFI binding + +These examples use the **UniFFI-generated** Python binding (`contextvm_ffi.py`) +plus the platform native library (`libcontextvm_ffi.so` / `.dylib` / +`contextvm_ffi.dll`). They are the Python equivalents of the Rust examples in +[`../`](../) (`discovery.rs`, `proxy.rs`). + +## The one rule: `.py` and native lib must come from the same release + +UniFFI embeds a **contract version** and a **per-function checksum** into both +the compiled native library and the generated `contextvm_ffi.py`. At import +time the binding recomputes them against the library and aborts with +`InternalError("UniFFI ... mismatch")` if they differ. + +So you must take the native library and the Python binding from the **same +GitHub Release / same CI run**. Never mix an old `.py` with a new `.so`. + +## Get the artifacts + +### Option A — from a GitHub Release + +Download **two** artifacts from the release page: + +1. `contextvm-ffi-bindings.tar.gz` → contains `python/contextvm_ffi.py` +2. The native archive for **your platform**: + - Linux x86_64 → `contextvm-ffi-x86_64-unknown-linux-gnu.tar.gz` + (`contextvm-ffi/lib/libcontextvm_ffi.so`) + - macOS Apple Silicon → `contextvm-ffi-aarch64-apple-darwin.tar.gz` + (`contextvm-ffi/lib/libcontextvm_ffi.dylib`) + - macOS universal → `contextvm-ffi-universal-apple-darwin.tar.gz` + - Windows x86_64 → `contextvm-ffi-x86_64-pc-windows-msvc.zip` + (`contextvm-ffi/lib/contextvm_ffi.dll`) + +### Option B — build locally + +```bash +# from the repo root +cargo build -p contextvm-ffi # -> target/debug/libcontextvm_ffi.so +cargo install --git https://github.com/mozilla/uniffi-rs \ + --tag v0.31.2 uniffi-bindgen-cli --locked # bindgen matching the runtime `uniffi` version +uniffi-bindgen-cli generate target/debug/libcontextvm_ffi.so \ + --library --language python --out-dir examples/python/ +``` + +## Lay them out side by side + +The generated `contextvm_ffi.py` looks for the native library **next to itself** +(`os.path.dirname(__file__)` + `libcontextvm_ffi.so`/`.dylib`/`.dll`). Put the +two files in this directory: + +```bash +# from examples/python/ +cp /path/to/contextvm-ffi/lib/libcontextvm_ffi.so . +# (place contextvm_ffi.py here too, from either Option A or B) +``` + +The `.gitignore` in this directory keeps both of these out of version control — +they are build/release artifacts, not source. + +## Run the examples + +```bash +cd examples/python + +# 1. Offline sanity check (no network). Run this first to confirm the install. +python3 01_offline_check.py + +# 2. Discover announced servers + their tools (needs internet). +python3 discover_servers.py +python3 discover_servers.py wss://relay.damus.io wss://nos.lol + +# 3. Talk to a specific server (needs internet + a known server pubkey). +python3 proxy_tools_list.py +``` + +## API surface + +The binding exposes these top-level helpers and objects: + +| Category | Names | +|----------|-------| +| Functions | `version()`, `pubkey_hex_to_npub(hex)`, `make_request(id, method, params)`, `make_response(id, result)`, `make_notification(method, params)` | +| Objects | `Keys`, `RelayPool`, `Discovery`, `Server`, `Client`, `Gateway`, `Proxy` | +| Configs | `ServerConfig(...)`, `ClientConfig(...)` (keyword-only fields) | +| Enums | `EncryptionMode.{OPTIONAL,REQUIRED,DISABLED}`, `GiftWrapMode.{OPTIONAL,EPHEMERAL,PERSISTENT}` | +| Records | `JsonRpcMessage`, `IncomingRequest`, `ServerAnnouncement`, `DiscoveredTool`, `ProviderProfile`, `PeerCapabilities` | + +All async SDK work runs on an internal Tokio runtime, so every method here is +**blocking** — no `async`/`await` needed on the Python side. + +See `contextvm-ffi/README.md` and `contextvm-ffi/src/uniffi_types.rs` for the +full, authoritative API. diff --git a/examples/python/discover_servers.py b/examples/python/discover_servers.py new file mode 100644 index 0000000..7e1bc92 --- /dev/null +++ b/examples/python/discover_servers.py @@ -0,0 +1,65 @@ +#!/usr/bin/env python3 +"""Discover announced ContextVM MCP servers and their published tools. + +The Python equivalent of examples/discovery.rs. Requires internet access to +Nostr relays. + + python3 discover_servers.py [relay_url ...] + +Defaults to wss://relay.damus.io and wss://nos.lol. +""" + +import sys + +import contextvm_ffi as cvm + +DEFAULT_RELAYS = ["wss://relay.damus.io", "wss://nos.lol"] + + +def main() -> int: + relays = sys.argv[1:] or DEFAULT_RELAYS + + keys = cvm.Keys.generate() + pool = cvm.RelayPool(keys) + print(f"Connecting to {len(relays)} relay(s)...") + pool.connect(relays) + + discovery = cvm.Discovery() + + print("Discovering announced MCP servers...\n") + servers = discovery.discover_servers(pool, relays) + if not servers: + print("No servers found. Try other relays, or wait a moment and re-run.") + pool.disconnect() + return 0 + + for s in servers: + name = s.name or "unnamed" + print(f"Server: {name} (npub: {cvm.pubkey_hex_to_npub(s.pubkey)[:24]}...)") + if s.about: + print(f" about: {s.about}") + + # Tools published by this specific provider. + tools = discovery.discover_tools(pool, s.pubkey, name, relays) + if tools: + print(f" tools ({len(tools)}):") + for t in tools: + desc = t.description.replace("\n", " ")[:80] + print(f" - {t.tool_name}: {desc}") + print() + + # One-shot aggregate discovery across all providers on the relays. + print("All discoverable tools across providers:") + all_tools = discovery.discover_all_tools(pool, relays) + for t in all_tools: + provider = t.provider_display_name or t.provider_name or t.provider_pubkey[:8] + desc = t.description.replace("\n", " ")[:60] + print(f" [{provider}] {t.tool_name}: {desc}") + print(f"\nTotal: {len(all_tools)} tool(s) from {len(servers)} server(s).") + + pool.disconnect() + return 0 + + +if __name__ == "__main__": + sys.exit(main()) diff --git a/examples/python/proxy_tools_list.py b/examples/python/proxy_tools_list.py new file mode 100644 index 0000000..a312a23 --- /dev/null +++ b/examples/python/proxy_tools_list.py @@ -0,0 +1,68 @@ +#!/usr/bin/env python3 +"""Connect to a remote ContextVM MCP server as a client and call tools/list. + +The Python equivalent of examples/proxy.rs. Requires internet access and a +known server pubkey. + + python3 proxy_tools_list.py [relay_url ...] + +The server pubkey is the 64-char hex public key of an announced ContextVM +server (discover one with discover_servers.py). +""" + +import sys + +import contextvm_ffi as cvm + +DEFAULT_RELAYS = ["wss://relay.damus.io"] + + +def main() -> int: + if len(sys.argv) < 2: + print(__doc__) + return 2 + server_pubkey = sys.argv[1] + relays = sys.argv[2:] or DEFAULT_RELAYS + + keys = cvm.Keys.generate() + print(f"Client npub: {cvm.pubkey_hex_to_npub(keys.public_key())}") + + config = cvm.ClientConfig( + relay_urls=relays, + server_pubkey=server_pubkey, + encryption_mode=cvm.EncryptionMode.OPTIONAL, + gift_wrap_mode=cvm.GiftWrapMode.OPTIONAL, + is_stateless=False, + timeout_secs=30, + discovery_relay_urls=[], + fallback_operational_relay_urls=[], + ) + + client = cvm.Client(keys, config) + + # MCP initialize handshake (sent on the underlying transport as soon as the + # client learns the server's relay list / capabilities). + init = cvm.make_request( + "1", + "initialize", + '{"protocolVersion":"2025-06-18","capabilities":{},' + '"clientInfo":{"name":"py-example","version":"0.1.0"}}', + ) + print("Sending initialize...") + client.send(init) + init_reply = client.recv_timeout(15) + print(f" -> id={init_reply.id}") + + # Query the server's tools. + print("Sending tools/list...") + client.send(cvm.make_request("2", "tools/list", None)) + reply = client.recv_timeout(15) + print(f" -> id={reply.id}") + print(reply.payload_json) + + client.close() + return 0 + + +if __name__ == "__main__": + sys.exit(main())