From 588b00a361e2feefbca0940b70482ca88899bb4f Mon Sep 17 00:00:00 2001 From: Jon Langevin Date: Sun, 3 May 2026 01:13:28 -0400 Subject: [PATCH 1/9] feat: scaffold workflow-plugin-audit-chain with proto contract Rename all workflow-plugin-TEMPLATE placeholders to workflow-plugin-audit-chain (per ADR 0009). Declare all 7 step types, 6 module types, and 1 trigger type per the prereq design spec. Add proto/audit.proto with full typed contracts for all step input/output messages (AppendRequest/Response through PublicReceiptResponse) including PollAnchorConfirmationResponse swallowed/error_message fields. Commit generated gen/audit.pb.go. Add Makefile with proto-gen target. All 10 unit tests pass. Co-Authored-By: Claude Sonnet 4.6 --- .goreleaser.yaml | 8 +- Makefile | 19 + cmd/workflow-plugin-TEMPLATE/main.go | 13 - cmd/workflow-plugin-audit-chain/main.go | 15 + gen/audit.pb.go | 1407 +++++++++++++++++++++++ go.mod | 2 +- internal/plugin.go | 85 +- internal/plugin_test.go | 153 ++- plugin.contracts.json | 40 +- plugin.json | 47 +- proto/audit.proto | 226 ++++ 11 files changed, 1956 insertions(+), 59 deletions(-) create mode 100644 Makefile delete mode 100644 cmd/workflow-plugin-TEMPLATE/main.go create mode 100644 cmd/workflow-plugin-audit-chain/main.go create mode 100644 gen/audit.pb.go create mode 100644 proto/audit.proto diff --git a/.goreleaser.yaml b/.goreleaser.yaml index 887df33..381cebd 100644 --- a/.goreleaser.yaml +++ b/.goreleaser.yaml @@ -6,9 +6,9 @@ before: - "sed -i.bak 's/\"version\": \".*\"/\"version\": \"{{ .Version }}\"/' plugin.json && rm -f plugin.json.bak" builds: - - id: workflow-plugin-TEMPLATE - main: ./cmd/workflow-plugin-TEMPLATE - binary: workflow-plugin-TEMPLATE + - id: workflow-plugin-audit-chain + main: ./cmd/workflow-plugin-audit-chain + binary: workflow-plugin-audit-chain env: - CGO_ENABLED=0 goos: @@ -19,7 +19,7 @@ builds: - amd64 - arm64 ldflags: - - -s -w -X main.version={{.Version}} -X github.com/GoCodeAlone/workflow-plugin-TEMPLATE/internal.Version={{.Version}} + - -s -w -X main.version={{.Version}} -X github.com/GoCodeAlone/workflow-plugin-audit-chain/internal.Version={{.Version}} archives: - formats: [tar.gz] diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..758a10f --- /dev/null +++ b/Makefile @@ -0,0 +1,19 @@ +.PHONY: proto-gen build test vet + +# Regenerate Go bindings from proto/audit.proto. +# Requires: protoc + protoc-gen-go (go install google.golang.org/protobuf/cmd/protoc-gen-go@latest) +proto-gen: + protoc \ + --proto_path=proto \ + --go_out=gen \ + --go_opt=paths=source_relative \ + proto/audit.proto + +build: + GOWORK=off go build ./... + +test: + GOWORK=off go test ./... -v -race -count=1 + +vet: + GOWORK=off go vet ./... diff --git a/cmd/workflow-plugin-TEMPLATE/main.go b/cmd/workflow-plugin-TEMPLATE/main.go deleted file mode 100644 index bd3ff89..0000000 --- a/cmd/workflow-plugin-TEMPLATE/main.go +++ /dev/null @@ -1,13 +0,0 @@ -// Command workflow-plugin-TEMPLATE is a workflow engine external plugin. -// It runs as a subprocess and communicates with the host workflow engine -// via the go-plugin gRPC protocol. -package main - -import ( - "github.com/GoCodeAlone/workflow-plugin-TEMPLATE/internal" - sdk "github.com/GoCodeAlone/workflow/plugin/external/sdk" -) - -func main() { - sdk.Serve(internal.NewPlugin()) -} diff --git a/cmd/workflow-plugin-audit-chain/main.go b/cmd/workflow-plugin-audit-chain/main.go new file mode 100644 index 0000000..b6f845d --- /dev/null +++ b/cmd/workflow-plugin-audit-chain/main.go @@ -0,0 +1,15 @@ +// Command workflow-plugin-audit-chain is a workflow engine external plugin +// providing tamper-evident hash-chained audit logging with periodic Merkle root +// anchoring to external providers (OpenTimestamps/Bitcoin, git, Sigstore, etc.). +// It runs as a subprocess and communicates with the host workflow engine via +// the go-plugin gRPC protocol. +package main + +import ( + "github.com/GoCodeAlone/workflow-plugin-audit-chain/internal" + sdk "github.com/GoCodeAlone/workflow/plugin/external/sdk" +) + +func main() { + sdk.Serve(internal.NewPlugin()) +} diff --git a/gen/audit.pb.go b/gen/audit.pb.go new file mode 100644 index 0000000..908ef46 --- /dev/null +++ b/gen/audit.pb.go @@ -0,0 +1,1407 @@ +// Code generated by protoc-gen-go. DO NOT EDIT. +// versions: +// protoc-gen-go v1.36.11 +// protoc v7.34.1 +// source: audit.proto + +package auditv1 + +import ( + protoreflect "google.golang.org/protobuf/reflect/protoreflect" + protoimpl "google.golang.org/protobuf/runtime/protoimpl" + reflect "reflect" + sync "sync" + unsafe "unsafe" +) + +const ( + // Verify that this generated code is sufficiently up-to-date. + _ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion) + // Verify that runtime/protoimpl is sufficiently up-to-date. + _ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20) +) + +// LedgerConfig declares a ledger partition with its anchor provider config +// and scheduling parameters. Used by the audit.ledger module type. +type LedgerConfig struct { + state protoimpl.MessageState `protogen:"open.v1"` + // name is the partition key (e.g. "bmw-financial"). + Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"` + // description is a human-readable description of the ledger's purpose. + Description string `protobuf:"bytes,2,opt,name=description,proto3" json:"description,omitempty"` + // anchor_providers lists the names of active anchor providers for this ledger. + AnchorProviders []string `protobuf:"bytes,3,rep,name=anchor_providers,json=anchorProviders,proto3" json:"anchor_providers,omitempty"` + // anchor_schedule is a cron expression controlling when Merkle roots are anchored. + AnchorSchedule string `protobuf:"bytes,4,opt,name=anchor_schedule,json=anchorSchedule,proto3" json:"anchor_schedule,omitempty"` + // anchor_min_entries is the minimum number of new entries required before anchoring. + AnchorMinEntries int32 `protobuf:"varint,5,opt,name=anchor_min_entries,json=anchorMinEntries,proto3" json:"anchor_min_entries,omitempty"` + // payload_schema is an optional JSON Schema (bytes) for payload validation at append time. + PayloadSchema []byte `protobuf:"bytes,6,opt,name=payload_schema,json=payloadSchema,proto3" json:"payload_schema,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *LedgerConfig) Reset() { + *x = LedgerConfig{} + mi := &file_audit_proto_msgTypes[0] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *LedgerConfig) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*LedgerConfig) ProtoMessage() {} + +func (x *LedgerConfig) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[0] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use LedgerConfig.ProtoReflect.Descriptor instead. +func (*LedgerConfig) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{0} +} + +func (x *LedgerConfig) GetName() string { + if x != nil { + return x.Name + } + return "" +} + +func (x *LedgerConfig) GetDescription() string { + if x != nil { + return x.Description + } + return "" +} + +func (x *LedgerConfig) GetAnchorProviders() []string { + if x != nil { + return x.AnchorProviders + } + return nil +} + +func (x *LedgerConfig) GetAnchorSchedule() string { + if x != nil { + return x.AnchorSchedule + } + return "" +} + +func (x *LedgerConfig) GetAnchorMinEntries() int32 { + if x != nil { + return x.AnchorMinEntries + } + return 0 +} + +func (x *LedgerConfig) GetPayloadSchema() []byte { + if x != nil { + return x.PayloadSchema + } + return nil +} + +// AppendRequest is the input for step.audit.append. +type AppendRequest struct { + state protoimpl.MessageState `protogen:"open.v1"` + // ledger is the partition key identifying which ledger to append to. + Ledger string `protobuf:"bytes,1,opt,name=ledger,proto3" json:"ledger,omitempty"` + // event_type is the application-defined event classification. + EventType string `protobuf:"bytes,2,opt,name=event_type,json=eventType,proto3" json:"event_type,omitempty"` + // payload is the canonical JSON (RFC 8785) bytes of the event data. + Payload []byte `protobuf:"bytes,3,opt,name=payload,proto3" json:"payload,omitempty"` + // actor is the application-defined identifier of who/what triggered the event. + Actor string `protobuf:"bytes,4,opt,name=actor,proto3" json:"actor,omitempty"` + // metadata is optional canonical JSON (RFC 8785) bytes for non-payload metadata. + Metadata []byte `protobuf:"bytes,5,opt,name=metadata,proto3" json:"metadata,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *AppendRequest) Reset() { + *x = AppendRequest{} + mi := &file_audit_proto_msgTypes[1] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *AppendRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*AppendRequest) ProtoMessage() {} + +func (x *AppendRequest) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[1] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use AppendRequest.ProtoReflect.Descriptor instead. +func (*AppendRequest) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{1} +} + +func (x *AppendRequest) GetLedger() string { + if x != nil { + return x.Ledger + } + return "" +} + +func (x *AppendRequest) GetEventType() string { + if x != nil { + return x.EventType + } + return "" +} + +func (x *AppendRequest) GetPayload() []byte { + if x != nil { + return x.Payload + } + return nil +} + +func (x *AppendRequest) GetActor() string { + if x != nil { + return x.Actor + } + return "" +} + +func (x *AppendRequest) GetMetadata() []byte { + if x != nil { + return x.Metadata + } + return nil +} + +// AppendResponse is the output from step.audit.append. +type AppendResponse struct { + state protoimpl.MessageState `protogen:"open.v1"` + // sequence is the monotonic sequence number assigned to the new entry. + Sequence int64 `protobuf:"varint,1,opt,name=sequence,proto3" json:"sequence,omitempty"` + // entry_hash is the SHA256 hash of the new entry (hex-encoded). + EntryHash string `protobuf:"bytes,2,opt,name=entry_hash,json=entryHash,proto3" json:"entry_hash,omitempty"` + // created_at is the timestamp when the entry was appended (RFC3339). + CreatedAt string `protobuf:"bytes,3,opt,name=created_at,json=createdAt,proto3" json:"created_at,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *AppendResponse) Reset() { + *x = AppendResponse{} + mi := &file_audit_proto_msgTypes[2] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *AppendResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*AppendResponse) ProtoMessage() {} + +func (x *AppendResponse) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[2] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use AppendResponse.ProtoReflect.Descriptor instead. +func (*AppendResponse) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{2} +} + +func (x *AppendResponse) GetSequence() int64 { + if x != nil { + return x.Sequence + } + return 0 +} + +func (x *AppendResponse) GetEntryHash() string { + if x != nil { + return x.EntryHash + } + return "" +} + +func (x *AppendResponse) GetCreatedAt() string { + if x != nil { + return x.CreatedAt + } + return "" +} + +// VerifyRequest is the input for step.audit.verify. +type VerifyRequest struct { + state protoimpl.MessageState `protogen:"open.v1"` + // ledger is the partition key to verify. + Ledger string `protobuf:"bytes,1,opt,name=ledger,proto3" json:"ledger,omitempty"` + // start_sequence is the first sequence number to verify (inclusive). + StartSequence int64 `protobuf:"varint,2,opt,name=start_sequence,json=startSequence,proto3" json:"start_sequence,omitempty"` + // end_sequence is the last sequence number to verify (inclusive). 0 = latest. + EndSequence int64 `protobuf:"varint,3,opt,name=end_sequence,json=endSequence,proto3" json:"end_sequence,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *VerifyRequest) Reset() { + *x = VerifyRequest{} + mi := &file_audit_proto_msgTypes[3] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *VerifyRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*VerifyRequest) ProtoMessage() {} + +func (x *VerifyRequest) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[3] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use VerifyRequest.ProtoReflect.Descriptor instead. +func (*VerifyRequest) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{3} +} + +func (x *VerifyRequest) GetLedger() string { + if x != nil { + return x.Ledger + } + return "" +} + +func (x *VerifyRequest) GetStartSequence() int64 { + if x != nil { + return x.StartSequence + } + return 0 +} + +func (x *VerifyRequest) GetEndSequence() int64 { + if x != nil { + return x.EndSequence + } + return 0 +} + +// VerifyResponse is the output from step.audit.verify. +type VerifyResponse struct { + state protoimpl.MessageState `protogen:"open.v1"` + // valid is true if the chain is intact over the verified range. + Valid bool `protobuf:"varint,1,opt,name=valid,proto3" json:"valid,omitempty"` + // first_invalid_sequence is the sequence number of the first broken entry; 0 if valid. + FirstInvalidSequence int64 `protobuf:"varint,2,opt,name=first_invalid_sequence,json=firstInvalidSequence,proto3" json:"first_invalid_sequence,omitempty"` + // failure_reason describes why the chain is broken; empty if valid. + FailureReason string `protobuf:"bytes,3,opt,name=failure_reason,json=failureReason,proto3" json:"failure_reason,omitempty"` + // entries_verified is the number of entries that were checked. + EntriesVerified int64 `protobuf:"varint,4,opt,name=entries_verified,json=entriesVerified,proto3" json:"entries_verified,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *VerifyResponse) Reset() { + *x = VerifyResponse{} + mi := &file_audit_proto_msgTypes[4] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *VerifyResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*VerifyResponse) ProtoMessage() {} + +func (x *VerifyResponse) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[4] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use VerifyResponse.ProtoReflect.Descriptor instead. +func (*VerifyResponse) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{4} +} + +func (x *VerifyResponse) GetValid() bool { + if x != nil { + return x.Valid + } + return false +} + +func (x *VerifyResponse) GetFirstInvalidSequence() int64 { + if x != nil { + return x.FirstInvalidSequence + } + return 0 +} + +func (x *VerifyResponse) GetFailureReason() string { + if x != nil { + return x.FailureReason + } + return "" +} + +func (x *VerifyResponse) GetEntriesVerified() int64 { + if x != nil { + return x.EntriesVerified + } + return 0 +} + +// MerkleRootRequest is the input for step.audit.merkle_root. +type MerkleRootRequest struct { + state protoimpl.MessageState `protogen:"open.v1"` + // ledger is the partition key. + Ledger string `protobuf:"bytes,1,opt,name=ledger,proto3" json:"ledger,omitempty"` + // start_sequence is the first entry to include in the tree (inclusive). + StartSequence int64 `protobuf:"varint,2,opt,name=start_sequence,json=startSequence,proto3" json:"start_sequence,omitempty"` + // end_sequence is the last entry to include in the tree (inclusive). 0 = latest. + EndSequence int64 `protobuf:"varint,3,opt,name=end_sequence,json=endSequence,proto3" json:"end_sequence,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *MerkleRootRequest) Reset() { + *x = MerkleRootRequest{} + mi := &file_audit_proto_msgTypes[5] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *MerkleRootRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*MerkleRootRequest) ProtoMessage() {} + +func (x *MerkleRootRequest) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[5] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use MerkleRootRequest.ProtoReflect.Descriptor instead. +func (*MerkleRootRequest) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{5} +} + +func (x *MerkleRootRequest) GetLedger() string { + if x != nil { + return x.Ledger + } + return "" +} + +func (x *MerkleRootRequest) GetStartSequence() int64 { + if x != nil { + return x.StartSequence + } + return 0 +} + +func (x *MerkleRootRequest) GetEndSequence() int64 { + if x != nil { + return x.EndSequence + } + return 0 +} + +// MerkleRootResponse is the output from step.audit.merkle_root. +type MerkleRootResponse struct { + state protoimpl.MessageState `protogen:"open.v1"` + // root is the hex-encoded Merkle root hash over entry_hashes in the range. + Root string `protobuf:"bytes,1,opt,name=root,proto3" json:"root,omitempty"` + // entries_included is the count of entries included in the tree. + EntriesIncluded int64 `protobuf:"varint,2,opt,name=entries_included,json=entriesIncluded,proto3" json:"entries_included,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *MerkleRootResponse) Reset() { + *x = MerkleRootResponse{} + mi := &file_audit_proto_msgTypes[6] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *MerkleRootResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*MerkleRootResponse) ProtoMessage() {} + +func (x *MerkleRootResponse) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[6] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use MerkleRootResponse.ProtoReflect.Descriptor instead. +func (*MerkleRootResponse) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{6} +} + +func (x *MerkleRootResponse) GetRoot() string { + if x != nil { + return x.Root + } + return "" +} + +func (x *MerkleRootResponse) GetEntriesIncluded() int64 { + if x != nil { + return x.EntriesIncluded + } + return 0 +} + +// AnchorRequest is the input for step.audit.anchor. +type AnchorRequest struct { + state protoimpl.MessageState `protogen:"open.v1"` + // ledger is the partition key. + Ledger string `protobuf:"bytes,1,opt,name=ledger,proto3" json:"ledger,omitempty"` + // start_sequence is the first entry covered by the anchor range (inclusive). + StartSequence int64 `protobuf:"varint,2,opt,name=start_sequence,json=startSequence,proto3" json:"start_sequence,omitempty"` + // end_sequence is the last entry covered by the anchor range (inclusive). 0 = latest. + EndSequence int64 `protobuf:"varint,3,opt,name=end_sequence,json=endSequence,proto3" json:"end_sequence,omitempty"` + // providers lists which anchor providers to use; empty = all configured providers. + Providers []string `protobuf:"bytes,4,rep,name=providers,proto3" json:"providers,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *AnchorRequest) Reset() { + *x = AnchorRequest{} + mi := &file_audit_proto_msgTypes[7] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *AnchorRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*AnchorRequest) ProtoMessage() {} + +func (x *AnchorRequest) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[7] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use AnchorRequest.ProtoReflect.Descriptor instead. +func (*AnchorRequest) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{7} +} + +func (x *AnchorRequest) GetLedger() string { + if x != nil { + return x.Ledger + } + return "" +} + +func (x *AnchorRequest) GetStartSequence() int64 { + if x != nil { + return x.StartSequence + } + return 0 +} + +func (x *AnchorRequest) GetEndSequence() int64 { + if x != nil { + return x.EndSequence + } + return 0 +} + +func (x *AnchorRequest) GetProviders() []string { + if x != nil { + return x.Providers + } + return nil +} + +// AnchorResponse is the output from step.audit.anchor. +type AnchorResponse struct { + state protoimpl.MessageState `protogen:"open.v1"` + // anchors contains one record per provider that was anchored. + Anchors []*AnchorRecord `protobuf:"bytes,1,rep,name=anchors,proto3" json:"anchors,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *AnchorResponse) Reset() { + *x = AnchorResponse{} + mi := &file_audit_proto_msgTypes[8] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *AnchorResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*AnchorResponse) ProtoMessage() {} + +func (x *AnchorResponse) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[8] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use AnchorResponse.ProtoReflect.Descriptor instead. +func (*AnchorResponse) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{8} +} + +func (x *AnchorResponse) GetAnchors() []*AnchorRecord { + if x != nil { + return x.Anchors + } + return nil +} + +// AnchorRecord is a single anchor result. +type AnchorRecord struct { + state protoimpl.MessageState `protogen:"open.v1"` + // provider is the anchor provider name (e.g. "opentimestamps", "git"). + Provider string `protobuf:"bytes,1,opt,name=provider,proto3" json:"provider,omitempty"` + // external_id is the provider-specific anchor reference (e.g. Bitcoin tx hash). + ExternalId string `protobuf:"bytes,2,opt,name=external_id,json=externalId,proto3" json:"external_id,omitempty"` + // confirmation is the current confirmation state: "pending", "confirmed", or "finalized". + Confirmation string `protobuf:"bytes,3,opt,name=confirmation,proto3" json:"confirmation,omitempty"` + // anchored_at is the timestamp when the anchor was submitted (RFC3339). + AnchoredAt string `protobuf:"bytes,4,opt,name=anchored_at,json=anchoredAt,proto3" json:"anchored_at,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *AnchorRecord) Reset() { + *x = AnchorRecord{} + mi := &file_audit_proto_msgTypes[9] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *AnchorRecord) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*AnchorRecord) ProtoMessage() {} + +func (x *AnchorRecord) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[9] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use AnchorRecord.ProtoReflect.Descriptor instead. +func (*AnchorRecord) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{9} +} + +func (x *AnchorRecord) GetProvider() string { + if x != nil { + return x.Provider + } + return "" +} + +func (x *AnchorRecord) GetExternalId() string { + if x != nil { + return x.ExternalId + } + return "" +} + +func (x *AnchorRecord) GetConfirmation() string { + if x != nil { + return x.Confirmation + } + return "" +} + +func (x *AnchorRecord) GetAnchoredAt() string { + if x != nil { + return x.AnchoredAt + } + return "" +} + +// PollAnchorConfirmationRequest is the input for step.audit.poll_anchor_confirmation. +// Used by the periodic confirmation cron (e.g. OpenTimestamps may take hours-to-days +// to finalize on Bitcoin). +type PollAnchorConfirmationRequest struct { + state protoimpl.MessageState `protogen:"open.v1"` + // anchor_id is the audit_anchors.id (BIGSERIAL, passed as string) of the pending anchor row. + AnchorId string `protobuf:"bytes,1,opt,name=anchor_id,json=anchorId,proto3" json:"anchor_id,omitempty"` + // provider is the anchor provider name stored in audit_anchors.provider. + Provider string `protobuf:"bytes,2,opt,name=provider,proto3" json:"provider,omitempty"` + // external_id is the provider's anchor reference stored in audit_anchors.external_id. + ExternalId string `protobuf:"bytes,3,opt,name=external_id,json=externalId,proto3" json:"external_id,omitempty"` + // proof_data is the opaque provider-specific proof bytes stored in audit_anchors.proof_data. + ProofData []byte `protobuf:"bytes,4,opt,name=proof_data,json=proofData,proto3" json:"proof_data,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *PollAnchorConfirmationRequest) Reset() { + *x = PollAnchorConfirmationRequest{} + mi := &file_audit_proto_msgTypes[10] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *PollAnchorConfirmationRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*PollAnchorConfirmationRequest) ProtoMessage() {} + +func (x *PollAnchorConfirmationRequest) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[10] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use PollAnchorConfirmationRequest.ProtoReflect.Descriptor instead. +func (*PollAnchorConfirmationRequest) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{10} +} + +func (x *PollAnchorConfirmationRequest) GetAnchorId() string { + if x != nil { + return x.AnchorId + } + return "" +} + +func (x *PollAnchorConfirmationRequest) GetProvider() string { + if x != nil { + return x.Provider + } + return "" +} + +func (x *PollAnchorConfirmationRequest) GetExternalId() string { + if x != nil { + return x.ExternalId + } + return "" +} + +func (x *PollAnchorConfirmationRequest) GetProofData() []byte { + if x != nil { + return x.ProofData + } + return nil +} + +// PollAnchorConfirmationResponse is the output from step.audit.poll_anchor_confirmation. +// +// Transient errors (calendar-server unreachable, network partition) MUST be returned +// as a successful response with current_confirmation = previous_confirmation, +// transitioned = false, swallowed = true, and error_message populated. +// Hard errors (invalid proof, malformed payload) return a gRPC error and abort the step. +// This contract lets cron-audit-anchor-confirm continue iterating across pending anchors +// when one calendar server is temporarily down. +type PollAnchorConfirmationResponse struct { + state protoimpl.MessageState `protogen:"open.v1"` + // previous_confirmation is the confirmation state before this poll. + PreviousConfirmation string `protobuf:"bytes,1,opt,name=previous_confirmation,json=previousConfirmation,proto3" json:"previous_confirmation,omitempty"` + // current_confirmation is the confirmation state after this poll. + CurrentConfirmation string `protobuf:"bytes,2,opt,name=current_confirmation,json=currentConfirmation,proto3" json:"current_confirmation,omitempty"` + // transitioned is true if the confirmation level advanced during this poll. + Transitioned bool `protobuf:"varint,3,opt,name=transitioned,proto3" json:"transitioned,omitempty"` + // updated_at is the timestamp of the poll (RFC3339). + UpdatedAt string `protobuf:"bytes,4,opt,name=updated_at,json=updatedAt,proto3" json:"updated_at,omitempty"` + // swallowed is true when a transient error was encountered but suppressed. + Swallowed bool `protobuf:"varint,5,opt,name=swallowed,proto3" json:"swallowed,omitempty"` + // error_message is populated when swallowed = true, describing the transient error. + ErrorMessage string `protobuf:"bytes,6,opt,name=error_message,json=errorMessage,proto3" json:"error_message,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *PollAnchorConfirmationResponse) Reset() { + *x = PollAnchorConfirmationResponse{} + mi := &file_audit_proto_msgTypes[11] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *PollAnchorConfirmationResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*PollAnchorConfirmationResponse) ProtoMessage() {} + +func (x *PollAnchorConfirmationResponse) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[11] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use PollAnchorConfirmationResponse.ProtoReflect.Descriptor instead. +func (*PollAnchorConfirmationResponse) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{11} +} + +func (x *PollAnchorConfirmationResponse) GetPreviousConfirmation() string { + if x != nil { + return x.PreviousConfirmation + } + return "" +} + +func (x *PollAnchorConfirmationResponse) GetCurrentConfirmation() string { + if x != nil { + return x.CurrentConfirmation + } + return "" +} + +func (x *PollAnchorConfirmationResponse) GetTransitioned() bool { + if x != nil { + return x.Transitioned + } + return false +} + +func (x *PollAnchorConfirmationResponse) GetUpdatedAt() string { + if x != nil { + return x.UpdatedAt + } + return "" +} + +func (x *PollAnchorConfirmationResponse) GetSwallowed() bool { + if x != nil { + return x.Swallowed + } + return false +} + +func (x *PollAnchorConfirmationResponse) GetErrorMessage() string { + if x != nil { + return x.ErrorMessage + } + return "" +} + +// ProofRequest is the input for step.audit.proof. +type ProofRequest struct { + state protoimpl.MessageState `protogen:"open.v1"` + // ledger is the partition key. + Ledger string `protobuf:"bytes,1,opt,name=ledger,proto3" json:"ledger,omitempty"` + // sequence is the entry sequence number for which to generate the proof. + Sequence int64 `protobuf:"varint,2,opt,name=sequence,proto3" json:"sequence,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *ProofRequest) Reset() { + *x = ProofRequest{} + mi := &file_audit_proto_msgTypes[12] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *ProofRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*ProofRequest) ProtoMessage() {} + +func (x *ProofRequest) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[12] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use ProofRequest.ProtoReflect.Descriptor instead. +func (*ProofRequest) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{12} +} + +func (x *ProofRequest) GetLedger() string { + if x != nil { + return x.Ledger + } + return "" +} + +func (x *ProofRequest) GetSequence() int64 { + if x != nil { + return x.Sequence + } + return 0 +} + +// ProofResponse is the output from step.audit.proof. +type ProofResponse struct { + state protoimpl.MessageState `protogen:"open.v1"` + // entry is the full audit log entry at the requested sequence. + Entry *Entry `protobuf:"bytes,1,opt,name=entry,proto3" json:"entry,omitempty"` + // merkle_path is the Merkle inclusion proof (list of hex-encoded sibling hashes). + MerklePath []string `protobuf:"bytes,2,rep,name=merkle_path,json=merklePath,proto3" json:"merkle_path,omitempty"` + // merkle_root is the hex-encoded Merkle root of the tree that contains this entry. + MerkleRoot string `protobuf:"bytes,3,opt,name=merkle_root,json=merkleRoot,proto3" json:"merkle_root,omitempty"` + // anchors lists all anchor records whose range covers this entry's sequence. + Anchors []*AnchorRecord `protobuf:"bytes,4,rep,name=anchors,proto3" json:"anchors,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *ProofResponse) Reset() { + *x = ProofResponse{} + mi := &file_audit_proto_msgTypes[13] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *ProofResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*ProofResponse) ProtoMessage() {} + +func (x *ProofResponse) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[13] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use ProofResponse.ProtoReflect.Descriptor instead. +func (*ProofResponse) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{13} +} + +func (x *ProofResponse) GetEntry() *Entry { + if x != nil { + return x.Entry + } + return nil +} + +func (x *ProofResponse) GetMerklePath() []string { + if x != nil { + return x.MerklePath + } + return nil +} + +func (x *ProofResponse) GetMerkleRoot() string { + if x != nil { + return x.MerkleRoot + } + return "" +} + +func (x *ProofResponse) GetAnchors() []*AnchorRecord { + if x != nil { + return x.Anchors + } + return nil +} + +// Entry is a single audit log entry. +type Entry struct { + state protoimpl.MessageState `protogen:"open.v1"` + // sequence is the monotonic sequence number. + Sequence int64 `protobuf:"varint,1,opt,name=sequence,proto3" json:"sequence,omitempty"` + // ledger is the partition key. + Ledger string `protobuf:"bytes,2,opt,name=ledger,proto3" json:"ledger,omitempty"` + // event_type is the application-defined event classification. + EventType string `protobuf:"bytes,3,opt,name=event_type,json=eventType,proto3" json:"event_type,omitempty"` + // payload is the canonical JSON (RFC 8785) bytes of the event data. + Payload []byte `protobuf:"bytes,4,opt,name=payload,proto3" json:"payload,omitempty"` + // entry_hash is the SHA256 hash of this entry (hex-encoded). + EntryHash string `protobuf:"bytes,5,opt,name=entry_hash,json=entryHash,proto3" json:"entry_hash,omitempty"` + // prev_entry_hash is the entry_hash of the preceding entry; empty for genesis. + PrevEntryHash string `protobuf:"bytes,6,opt,name=prev_entry_hash,json=prevEntryHash,proto3" json:"prev_entry_hash,omitempty"` + // created_at is when this entry was appended (RFC3339). + CreatedAt string `protobuf:"bytes,7,opt,name=created_at,json=createdAt,proto3" json:"created_at,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *Entry) Reset() { + *x = Entry{} + mi := &file_audit_proto_msgTypes[14] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *Entry) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*Entry) ProtoMessage() {} + +func (x *Entry) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[14] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use Entry.ProtoReflect.Descriptor instead. +func (*Entry) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{14} +} + +func (x *Entry) GetSequence() int64 { + if x != nil { + return x.Sequence + } + return 0 +} + +func (x *Entry) GetLedger() string { + if x != nil { + return x.Ledger + } + return "" +} + +func (x *Entry) GetEventType() string { + if x != nil { + return x.EventType + } + return "" +} + +func (x *Entry) GetPayload() []byte { + if x != nil { + return x.Payload + } + return nil +} + +func (x *Entry) GetEntryHash() string { + if x != nil { + return x.EntryHash + } + return "" +} + +func (x *Entry) GetPrevEntryHash() string { + if x != nil { + return x.PrevEntryHash + } + return "" +} + +func (x *Entry) GetCreatedAt() string { + if x != nil { + return x.CreatedAt + } + return "" +} + +// PublicReceiptRequest is the input for step.audit.public_receipt. +type PublicReceiptRequest struct { + state protoimpl.MessageState `protogen:"open.v1"` + // ledger is the partition key. + Ledger string `protobuf:"bytes,1,opt,name=ledger,proto3" json:"ledger,omitempty"` + // sequence is the entry sequence number for which to generate the public receipt. + Sequence int64 `protobuf:"varint,2,opt,name=sequence,proto3" json:"sequence,omitempty"` + // redact_fields lists JSON paths in payload to redact with stable per-receipt + // pseudonyms (e.g. ["contributor_user_id"]). The redacted-payload + pseudonym + // mapping is included in the receipt; the entry_hash remains verifiable. + RedactFields []string `protobuf:"bytes,3,rep,name=redact_fields,json=redactFields,proto3" json:"redact_fields,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *PublicReceiptRequest) Reset() { + *x = PublicReceiptRequest{} + mi := &file_audit_proto_msgTypes[15] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *PublicReceiptRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*PublicReceiptRequest) ProtoMessage() {} + +func (x *PublicReceiptRequest) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[15] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use PublicReceiptRequest.ProtoReflect.Descriptor instead. +func (*PublicReceiptRequest) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{15} +} + +func (x *PublicReceiptRequest) GetLedger() string { + if x != nil { + return x.Ledger + } + return "" +} + +func (x *PublicReceiptRequest) GetSequence() int64 { + if x != nil { + return x.Sequence + } + return 0 +} + +func (x *PublicReceiptRequest) GetRedactFields() []string { + if x != nil { + return x.RedactFields + } + return nil +} + +// PublicReceiptResponse is the output from step.audit.public_receipt. +type PublicReceiptResponse struct { + state protoimpl.MessageState `protogen:"open.v1"` + // receipt_url is the canonical URL where the receipt JSON is served. + ReceiptUrl string `protobuf:"bytes,1,opt,name=receipt_url,json=receiptUrl,proto3" json:"receipt_url,omitempty"` + // receipt_json is the full verifiable receipt JSON string (entry + proof + anchors + pseudonym map). + ReceiptJson string `protobuf:"bytes,2,opt,name=receipt_json,json=receiptJson,proto3" json:"receipt_json,omitempty"` + // receipt_hash is the SHA256 hash of receipt_json (hex-encoded). + ReceiptHash string `protobuf:"bytes,3,opt,name=receipt_hash,json=receiptHash,proto3" json:"receipt_hash,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache +} + +func (x *PublicReceiptResponse) Reset() { + *x = PublicReceiptResponse{} + mi := &file_audit_proto_msgTypes[16] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) +} + +func (x *PublicReceiptResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*PublicReceiptResponse) ProtoMessage() {} + +func (x *PublicReceiptResponse) ProtoReflect() protoreflect.Message { + mi := &file_audit_proto_msgTypes[16] + if x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use PublicReceiptResponse.ProtoReflect.Descriptor instead. +func (*PublicReceiptResponse) Descriptor() ([]byte, []int) { + return file_audit_proto_rawDescGZIP(), []int{16} +} + +func (x *PublicReceiptResponse) GetReceiptUrl() string { + if x != nil { + return x.ReceiptUrl + } + return "" +} + +func (x *PublicReceiptResponse) GetReceiptJson() string { + if x != nil { + return x.ReceiptJson + } + return "" +} + +func (x *PublicReceiptResponse) GetReceiptHash() string { + if x != nil { + return x.ReceiptHash + } + return "" +} + +var File_audit_proto protoreflect.FileDescriptor + +const file_audit_proto_rawDesc = "" + + "\n" + + "\vaudit.proto\x12\x18workflow.plugin.audit.v1\"\xed\x01\n" + + "\fLedgerConfig\x12\x12\n" + + "\x04name\x18\x01 \x01(\tR\x04name\x12 \n" + + "\vdescription\x18\x02 \x01(\tR\vdescription\x12)\n" + + "\x10anchor_providers\x18\x03 \x03(\tR\x0fanchorProviders\x12'\n" + + "\x0fanchor_schedule\x18\x04 \x01(\tR\x0eanchorSchedule\x12,\n" + + "\x12anchor_min_entries\x18\x05 \x01(\x05R\x10anchorMinEntries\x12%\n" + + "\x0epayload_schema\x18\x06 \x01(\fR\rpayloadSchema\"\x92\x01\n" + + "\rAppendRequest\x12\x16\n" + + "\x06ledger\x18\x01 \x01(\tR\x06ledger\x12\x1d\n" + + "\n" + + "event_type\x18\x02 \x01(\tR\teventType\x12\x18\n" + + "\apayload\x18\x03 \x01(\fR\apayload\x12\x14\n" + + "\x05actor\x18\x04 \x01(\tR\x05actor\x12\x1a\n" + + "\bmetadata\x18\x05 \x01(\fR\bmetadata\"j\n" + + "\x0eAppendResponse\x12\x1a\n" + + "\bsequence\x18\x01 \x01(\x03R\bsequence\x12\x1d\n" + + "\n" + + "entry_hash\x18\x02 \x01(\tR\tentryHash\x12\x1d\n" + + "\n" + + "created_at\x18\x03 \x01(\tR\tcreatedAt\"q\n" + + "\rVerifyRequest\x12\x16\n" + + "\x06ledger\x18\x01 \x01(\tR\x06ledger\x12%\n" + + "\x0estart_sequence\x18\x02 \x01(\x03R\rstartSequence\x12!\n" + + "\fend_sequence\x18\x03 \x01(\x03R\vendSequence\"\xae\x01\n" + + "\x0eVerifyResponse\x12\x14\n" + + "\x05valid\x18\x01 \x01(\bR\x05valid\x124\n" + + "\x16first_invalid_sequence\x18\x02 \x01(\x03R\x14firstInvalidSequence\x12%\n" + + "\x0efailure_reason\x18\x03 \x01(\tR\rfailureReason\x12)\n" + + "\x10entries_verified\x18\x04 \x01(\x03R\x0fentriesVerified\"u\n" + + "\x11MerkleRootRequest\x12\x16\n" + + "\x06ledger\x18\x01 \x01(\tR\x06ledger\x12%\n" + + "\x0estart_sequence\x18\x02 \x01(\x03R\rstartSequence\x12!\n" + + "\fend_sequence\x18\x03 \x01(\x03R\vendSequence\"S\n" + + "\x12MerkleRootResponse\x12\x12\n" + + "\x04root\x18\x01 \x01(\tR\x04root\x12)\n" + + "\x10entries_included\x18\x02 \x01(\x03R\x0fentriesIncluded\"\x8f\x01\n" + + "\rAnchorRequest\x12\x16\n" + + "\x06ledger\x18\x01 \x01(\tR\x06ledger\x12%\n" + + "\x0estart_sequence\x18\x02 \x01(\x03R\rstartSequence\x12!\n" + + "\fend_sequence\x18\x03 \x01(\x03R\vendSequence\x12\x1c\n" + + "\tproviders\x18\x04 \x03(\tR\tproviders\"R\n" + + "\x0eAnchorResponse\x12@\n" + + "\aanchors\x18\x01 \x03(\v2&.workflow.plugin.audit.v1.AnchorRecordR\aanchors\"\x90\x01\n" + + "\fAnchorRecord\x12\x1a\n" + + "\bprovider\x18\x01 \x01(\tR\bprovider\x12\x1f\n" + + "\vexternal_id\x18\x02 \x01(\tR\n" + + "externalId\x12\"\n" + + "\fconfirmation\x18\x03 \x01(\tR\fconfirmation\x12\x1f\n" + + "\vanchored_at\x18\x04 \x01(\tR\n" + + "anchoredAt\"\x98\x01\n" + + "\x1dPollAnchorConfirmationRequest\x12\x1b\n" + + "\tanchor_id\x18\x01 \x01(\tR\banchorId\x12\x1a\n" + + "\bprovider\x18\x02 \x01(\tR\bprovider\x12\x1f\n" + + "\vexternal_id\x18\x03 \x01(\tR\n" + + "externalId\x12\x1d\n" + + "\n" + + "proof_data\x18\x04 \x01(\fR\tproofData\"\x8e\x02\n" + + "\x1ePollAnchorConfirmationResponse\x123\n" + + "\x15previous_confirmation\x18\x01 \x01(\tR\x14previousConfirmation\x121\n" + + "\x14current_confirmation\x18\x02 \x01(\tR\x13currentConfirmation\x12\"\n" + + "\ftransitioned\x18\x03 \x01(\bR\ftransitioned\x12\x1d\n" + + "\n" + + "updated_at\x18\x04 \x01(\tR\tupdatedAt\x12\x1c\n" + + "\tswallowed\x18\x05 \x01(\bR\tswallowed\x12#\n" + + "\rerror_message\x18\x06 \x01(\tR\ferrorMessage\"B\n" + + "\fProofRequest\x12\x16\n" + + "\x06ledger\x18\x01 \x01(\tR\x06ledger\x12\x1a\n" + + "\bsequence\x18\x02 \x01(\x03R\bsequence\"\xca\x01\n" + + "\rProofResponse\x125\n" + + "\x05entry\x18\x01 \x01(\v2\x1f.workflow.plugin.audit.v1.EntryR\x05entry\x12\x1f\n" + + "\vmerkle_path\x18\x02 \x03(\tR\n" + + "merklePath\x12\x1f\n" + + "\vmerkle_root\x18\x03 \x01(\tR\n" + + "merkleRoot\x12@\n" + + "\aanchors\x18\x04 \x03(\v2&.workflow.plugin.audit.v1.AnchorRecordR\aanchors\"\xda\x01\n" + + "\x05Entry\x12\x1a\n" + + "\bsequence\x18\x01 \x01(\x03R\bsequence\x12\x16\n" + + "\x06ledger\x18\x02 \x01(\tR\x06ledger\x12\x1d\n" + + "\n" + + "event_type\x18\x03 \x01(\tR\teventType\x12\x18\n" + + "\apayload\x18\x04 \x01(\fR\apayload\x12\x1d\n" + + "\n" + + "entry_hash\x18\x05 \x01(\tR\tentryHash\x12&\n" + + "\x0fprev_entry_hash\x18\x06 \x01(\tR\rprevEntryHash\x12\x1d\n" + + "\n" + + "created_at\x18\a \x01(\tR\tcreatedAt\"o\n" + + "\x14PublicReceiptRequest\x12\x16\n" + + "\x06ledger\x18\x01 \x01(\tR\x06ledger\x12\x1a\n" + + "\bsequence\x18\x02 \x01(\x03R\bsequence\x12#\n" + + "\rredact_fields\x18\x03 \x03(\tR\fredactFields\"~\n" + + "\x15PublicReceiptResponse\x12\x1f\n" + + "\vreceipt_url\x18\x01 \x01(\tR\n" + + "receiptUrl\x12!\n" + + "\freceipt_json\x18\x02 \x01(\tR\vreceiptJson\x12!\n" + + "\freceipt_hash\x18\x03 \x01(\tR\vreceiptHashB@Z>github.com/GoCodeAlone/workflow-plugin-audit-chain/gen;auditv1b\x06proto3" + +var ( + file_audit_proto_rawDescOnce sync.Once + file_audit_proto_rawDescData []byte +) + +func file_audit_proto_rawDescGZIP() []byte { + file_audit_proto_rawDescOnce.Do(func() { + file_audit_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_audit_proto_rawDesc), len(file_audit_proto_rawDesc))) + }) + return file_audit_proto_rawDescData +} + +var file_audit_proto_msgTypes = make([]protoimpl.MessageInfo, 17) +var file_audit_proto_goTypes = []any{ + (*LedgerConfig)(nil), // 0: workflow.plugin.audit.v1.LedgerConfig + (*AppendRequest)(nil), // 1: workflow.plugin.audit.v1.AppendRequest + (*AppendResponse)(nil), // 2: workflow.plugin.audit.v1.AppendResponse + (*VerifyRequest)(nil), // 3: workflow.plugin.audit.v1.VerifyRequest + (*VerifyResponse)(nil), // 4: workflow.plugin.audit.v1.VerifyResponse + (*MerkleRootRequest)(nil), // 5: workflow.plugin.audit.v1.MerkleRootRequest + (*MerkleRootResponse)(nil), // 6: workflow.plugin.audit.v1.MerkleRootResponse + (*AnchorRequest)(nil), // 7: workflow.plugin.audit.v1.AnchorRequest + (*AnchorResponse)(nil), // 8: workflow.plugin.audit.v1.AnchorResponse + (*AnchorRecord)(nil), // 9: workflow.plugin.audit.v1.AnchorRecord + (*PollAnchorConfirmationRequest)(nil), // 10: workflow.plugin.audit.v1.PollAnchorConfirmationRequest + (*PollAnchorConfirmationResponse)(nil), // 11: workflow.plugin.audit.v1.PollAnchorConfirmationResponse + (*ProofRequest)(nil), // 12: workflow.plugin.audit.v1.ProofRequest + (*ProofResponse)(nil), // 13: workflow.plugin.audit.v1.ProofResponse + (*Entry)(nil), // 14: workflow.plugin.audit.v1.Entry + (*PublicReceiptRequest)(nil), // 15: workflow.plugin.audit.v1.PublicReceiptRequest + (*PublicReceiptResponse)(nil), // 16: workflow.plugin.audit.v1.PublicReceiptResponse +} +var file_audit_proto_depIdxs = []int32{ + 9, // 0: workflow.plugin.audit.v1.AnchorResponse.anchors:type_name -> workflow.plugin.audit.v1.AnchorRecord + 14, // 1: workflow.plugin.audit.v1.ProofResponse.entry:type_name -> workflow.plugin.audit.v1.Entry + 9, // 2: workflow.plugin.audit.v1.ProofResponse.anchors:type_name -> workflow.plugin.audit.v1.AnchorRecord + 3, // [3:3] is the sub-list for method output_type + 3, // [3:3] is the sub-list for method input_type + 3, // [3:3] is the sub-list for extension type_name + 3, // [3:3] is the sub-list for extension extendee + 0, // [0:3] is the sub-list for field type_name +} + +func init() { file_audit_proto_init() } +func file_audit_proto_init() { + if File_audit_proto != nil { + return + } + type x struct{} + out := protoimpl.TypeBuilder{ + File: protoimpl.DescBuilder{ + GoPackagePath: reflect.TypeOf(x{}).PkgPath(), + RawDescriptor: unsafe.Slice(unsafe.StringData(file_audit_proto_rawDesc), len(file_audit_proto_rawDesc)), + NumEnums: 0, + NumMessages: 17, + NumExtensions: 0, + NumServices: 0, + }, + GoTypes: file_audit_proto_goTypes, + DependencyIndexes: file_audit_proto_depIdxs, + MessageInfos: file_audit_proto_msgTypes, + }.Build() + File_audit_proto = out.File + file_audit_proto_goTypes = nil + file_audit_proto_depIdxs = nil +} diff --git a/go.mod b/go.mod index 947535d..997b215 100644 --- a/go.mod +++ b/go.mod @@ -1,4 +1,4 @@ -module github.com/GoCodeAlone/workflow-plugin-TEMPLATE +module github.com/GoCodeAlone/workflow-plugin-audit-chain go 1.26.0 diff --git a/internal/plugin.go b/internal/plugin.go index c660bc3..9cb9223 100644 --- a/internal/plugin.go +++ b/internal/plugin.go @@ -1,4 +1,4 @@ -// Package internal implements the workflow-plugin-TEMPLATE plugin. +// Package internal implements the workflow-plugin-audit-chain plugin. package internal import ( @@ -8,65 +8,100 @@ import ( ) // Version is set at build time via -ldflags -// "-X github.com/GoCodeAlone/workflow-plugin-TEMPLATE/internal.Version=X.Y.Z". +// "-X github.com/GoCodeAlone/workflow-plugin-audit-chain/internal.Version=X.Y.Z". // Default is a bare semver so plugin loaders that validate semver accept // unreleased dev builds; goreleaser overrides with the real release tag. var Version = "0.0.0" -// TEMPLATEPlugin implements sdk.PluginProvider and optionally -// sdk.ModuleProvider, sdk.StepProvider, sdk.TriggerProvider, etc. -type TEMPLATEPlugin struct{} +// AuditChainPlugin implements sdk.PluginProvider and the step/module/trigger +// provider interfaces for the audit-chain plugin. +type AuditChainPlugin struct{} // NewPlugin returns a new plugin instance. main.go calls sdk.Serve(NewPlugin()). func NewPlugin() sdk.PluginProvider { - return &TEMPLATEPlugin{} + return &AuditChainPlugin{} } // Manifest returns the plugin metadata used by the workflow engine for // discovery and capability negotiation. -func (p *TEMPLATEPlugin) Manifest() sdk.PluginManifest { +func (p *AuditChainPlugin) Manifest() sdk.PluginManifest { return sdk.PluginManifest{ - Name: "workflow-plugin-TEMPLATE", + Name: "workflow-plugin-audit-chain", Version: Version, Author: "GoCodeAlone", - Description: "TEMPLATE plugin for the workflow engine", + Description: "Tamper-evident hash-chained audit logging with periodic Merkle root anchoring (OpenTimestamps/Bitcoin, git, Sigstore, Ethereum, AWS QLDB)", } } // ModuleTypes returns the module type names this plugin provides. -// Remove this method if the plugin does not provide any modules. -func (p *TEMPLATEPlugin) ModuleTypes() []string { +func (p *AuditChainPlugin) ModuleTypes() []string { return []string{ - // "example.module_type", + "audit.ledger", + "audit.anchor_provider.opentimestamps", + "audit.anchor_provider.git", + "audit.anchor_provider.sigstore", + "audit.anchor_provider.ethereum", + "audit.anchor_provider.aws_qldb", } } // CreateModule creates a module instance of the given type. -// Remove this method if the plugin does not provide any modules. -func (p *TEMPLATEPlugin) CreateModule(typeName, name string, config map[string]any) (sdk.ModuleInstance, error) { +func (p *AuditChainPlugin) CreateModule(typeName, name string, config map[string]any) (sdk.ModuleInstance, error) { switch typeName { - // case "example.module_type": - // return newExampleModule(name, config) + case "audit.ledger", + "audit.anchor_provider.opentimestamps", + "audit.anchor_provider.git", + "audit.anchor_provider.sigstore", + "audit.anchor_provider.ethereum", + "audit.anchor_provider.aws_qldb": + return nil, fmt.Errorf("audit-chain: module type %q not yet implemented", typeName) default: - return nil, fmt.Errorf("TEMPLATE: unknown module type %q", typeName) + return nil, fmt.Errorf("audit-chain: unknown module type %q", typeName) } } // StepTypes returns the step type names this plugin provides. -// Remove this method if the plugin does not provide any steps. -func (p *TEMPLATEPlugin) StepTypes() []string { +func (p *AuditChainPlugin) StepTypes() []string { return []string{ - // "step.example_action", + "step.audit.append", + "step.audit.verify", + "step.audit.merkle_root", + "step.audit.anchor", + "step.audit.poll_anchor_confirmation", + "step.audit.proof", + "step.audit.public_receipt", } } // CreateStep creates a step instance of the given type. -// Remove this method if the plugin does not provide any steps. -func (p *TEMPLATEPlugin) CreateStep(typeName, name string, config map[string]any) (sdk.StepInstance, error) { +func (p *AuditChainPlugin) CreateStep(typeName, name string, config map[string]any) (sdk.StepInstance, error) { switch typeName { - // case "step.example_action": - // return newExampleStep(name, config), nil + case "step.audit.append", + "step.audit.verify", + "step.audit.merkle_root", + "step.audit.anchor", + "step.audit.poll_anchor_confirmation", + "step.audit.proof", + "step.audit.public_receipt": + return nil, fmt.Errorf("audit-chain: step type %q not yet implemented", typeName) default: - return nil, fmt.Errorf("TEMPLATE: unknown step type %q", typeName) + return nil, fmt.Errorf("audit-chain: unknown step type %q", typeName) + } +} + +// TriggerTypes returns the trigger type names this plugin provides. +func (p *AuditChainPlugin) TriggerTypes() []string { + return []string{ + "trigger.audit.entry_appended", + } +} + +// CreateTrigger creates a trigger instance of the given type. +func (p *AuditChainPlugin) CreateTrigger(typeName string, config map[string]any, cb sdk.TriggerCallback) (sdk.TriggerInstance, error) { + switch typeName { + case "trigger.audit.entry_appended": + return nil, fmt.Errorf("audit-chain: trigger type %q not yet implemented", typeName) + default: + return nil, fmt.Errorf("audit-chain: unknown trigger type %q", typeName) } } diff --git a/internal/plugin_test.go b/internal/plugin_test.go index ae38780..ea2a469 100644 --- a/internal/plugin_test.go +++ b/internal/plugin_test.go @@ -1,9 +1,10 @@ package internal_test import ( + "strings" "testing" - "github.com/GoCodeAlone/workflow-plugin-TEMPLATE/internal" + "github.com/GoCodeAlone/workflow-plugin-audit-chain/internal" sdk "github.com/GoCodeAlone/workflow/plugin/external/sdk" ) @@ -16,6 +17,9 @@ func TestManifest_HasRequiredFields(t *testing.T) { if m.Name == "" { t.Error("manifest Name is empty") } + if m.Name != "workflow-plugin-audit-chain" { + t.Errorf("manifest Name = %q, want %q", m.Name, "workflow-plugin-audit-chain") + } if m.Version == "" { t.Error("manifest Version is empty — build-time ldflags injection missing") } @@ -23,3 +27,150 @@ func TestManifest_HasRequiredFields(t *testing.T) { t.Error("manifest Description is empty") } } + +func TestModuleTypes_Declared(t *testing.T) { + p := internal.NewPlugin() + mp, ok := p.(sdk.ModuleProvider) + if !ok { + t.Fatal("plugin does not implement sdk.ModuleProvider") + } + types := mp.ModuleTypes() + want := []string{ + "audit.ledger", + "audit.anchor_provider.opentimestamps", + "audit.anchor_provider.git", + "audit.anchor_provider.sigstore", + "audit.anchor_provider.ethereum", + "audit.anchor_provider.aws_qldb", + } + typeSet := make(map[string]bool, len(types)) + for _, t := range types { + typeSet[t] = true + } + for _, w := range want { + if !typeSet[w] { + t.Errorf("ModuleTypes() missing %q", w) + } + } +} + +func TestStepTypes_Declared(t *testing.T) { + p := internal.NewPlugin() + sp, ok := p.(sdk.StepProvider) + if !ok { + t.Fatal("plugin does not implement sdk.StepProvider") + } + types := sp.StepTypes() + want := []string{ + "step.audit.append", + "step.audit.verify", + "step.audit.merkle_root", + "step.audit.anchor", + "step.audit.poll_anchor_confirmation", + "step.audit.proof", + "step.audit.public_receipt", + } + typeSet := make(map[string]bool, len(types)) + for _, t := range types { + typeSet[t] = true + } + for _, w := range want { + if !typeSet[w] { + t.Errorf("StepTypes() missing %q", w) + } + } +} + +func TestTriggerTypes_Declared(t *testing.T) { + p := internal.NewPlugin() + tp, ok := p.(sdk.TriggerProvider) + if !ok { + t.Fatal("plugin does not implement sdk.TriggerProvider") + } + types := tp.TriggerTypes() + found := false + for _, tt := range types { + if tt == "trigger.audit.entry_appended" { + found = true + break + } + } + if !found { + t.Error("TriggerTypes() missing trigger.audit.entry_appended") + } +} + +func TestCreateTrigger_UnknownType_ReturnsError(t *testing.T) { + p := internal.NewPlugin() + tp, ok := p.(sdk.TriggerProvider) + if !ok { + t.Fatal("plugin does not implement sdk.TriggerProvider") + } + _, err := tp.CreateTrigger("unknown.trigger", nil, nil) + if err == nil { + t.Error("CreateTrigger with unknown type should return error") + } + if !strings.Contains(err.Error(), "unknown trigger type") { + t.Errorf("unexpected error message: %v", err) + } +} + +func TestCreateModule_UnknownType_ReturnsError(t *testing.T) { + p := internal.NewPlugin() + mp, ok := p.(sdk.ModuleProvider) + if !ok { + t.Fatal("plugin does not implement sdk.ModuleProvider") + } + _, err := mp.CreateModule("unknown.type", "test", nil) + if err == nil { + t.Error("CreateModule with unknown type should return error") + } + if !strings.Contains(err.Error(), "unknown module type") { + t.Errorf("unexpected error message: %v", err) + } +} + +func TestCreateStep_UnknownType_ReturnsError(t *testing.T) { + p := internal.NewPlugin() + sp, ok := p.(sdk.StepProvider) + if !ok { + t.Fatal("plugin does not implement sdk.StepProvider") + } + _, err := sp.CreateStep("unknown.type", "test", nil) + if err == nil { + t.Error("CreateStep with unknown type should return error") + } + if !strings.Contains(err.Error(), "unknown step type") { + t.Errorf("unexpected error message: %v", err) + } +} + +func TestCreateModule_KnownType_ReturnsNotImplemented(t *testing.T) { + p := internal.NewPlugin() + mp, ok := p.(sdk.ModuleProvider) + if !ok { + t.Fatal("plugin does not implement sdk.ModuleProvider") + } + _, err := mp.CreateModule("audit.ledger", "test", nil) + if err == nil { + t.Error("CreateModule for audit.ledger should return not-implemented error") + } + if !strings.Contains(err.Error(), "not yet implemented") { + t.Errorf("unexpected error message: %v", err) + } +} + +func TestCreateStep_KnownType_ReturnsNotImplemented(t *testing.T) { + p := internal.NewPlugin() + sp, ok := p.(sdk.StepProvider) + if !ok { + t.Fatal("plugin does not implement sdk.StepProvider") + } + _, err := sp.CreateStep("step.audit.append", "test", nil) + if err == nil { + t.Error("CreateStep for step.audit.append should return not-implemented error") + } + if !strings.Contains(err.Error(), "not yet implemented") { + t.Errorf("unexpected error message: %v", err) + } +} diff --git a/plugin.contracts.json b/plugin.contracts.json index 34034d7..6456479 100644 --- a/plugin.contracts.json +++ b/plugin.contracts.json @@ -1,4 +1,42 @@ { "version": "1", - "contracts": [] + "protoPackage": "workflow.plugin.audit.v1", + "protoFile": "proto/audit.proto", + "contracts": [ + { + "type": "step.audit.append", + "inputType": "workflow.plugin.audit.v1.AppendRequest", + "outputType": "workflow.plugin.audit.v1.AppendResponse" + }, + { + "type": "step.audit.verify", + "inputType": "workflow.plugin.audit.v1.VerifyRequest", + "outputType": "workflow.plugin.audit.v1.VerifyResponse" + }, + { + "type": "step.audit.merkle_root", + "inputType": "workflow.plugin.audit.v1.MerkleRootRequest", + "outputType": "workflow.plugin.audit.v1.MerkleRootResponse" + }, + { + "type": "step.audit.anchor", + "inputType": "workflow.plugin.audit.v1.AnchorRequest", + "outputType": "workflow.plugin.audit.v1.AnchorResponse" + }, + { + "type": "step.audit.poll_anchor_confirmation", + "inputType": "workflow.plugin.audit.v1.PollAnchorConfirmationRequest", + "outputType": "workflow.plugin.audit.v1.PollAnchorConfirmationResponse" + }, + { + "type": "step.audit.proof", + "inputType": "workflow.plugin.audit.v1.ProofRequest", + "outputType": "workflow.plugin.audit.v1.ProofResponse" + }, + { + "type": "step.audit.public_receipt", + "inputType": "workflow.plugin.audit.v1.PublicReceiptRequest", + "outputType": "workflow.plugin.audit.v1.PublicReceiptResponse" + } + ] } diff --git a/plugin.json b/plugin.json index b302197..88446e9 100644 --- a/plugin.json +++ b/plugin.json @@ -1,48 +1,67 @@ { - "name": "workflow-plugin-TEMPLATE", + "name": "workflow-plugin-audit-chain", "version": "0.1.0", - "description": "TEMPLATE plugin for the workflow engine", + "description": "Tamper-evident hash-chained audit logging with periodic Merkle root anchoring (OpenTimestamps/Bitcoin, git, Sigstore, Ethereum, AWS QLDB)", "author": "GoCodeAlone", "license": "MIT", "type": "external", "tier": "community", "private": false, "minEngineVersion": "0.20.0", - "keywords": [], - "homepage": "https://github.com/GoCodeAlone/workflow-plugin-TEMPLATE", - "repository": "https://github.com/GoCodeAlone/workflow-plugin-TEMPLATE", + "keywords": ["audit", "hash-chain", "merkle", "opentimestamps", "tamper-evident"], + "homepage": "https://github.com/GoCodeAlone/workflow-plugin-audit-chain", + "repository": "https://github.com/GoCodeAlone/workflow-plugin-audit-chain", "capabilities": { "configProvider": false, - "moduleTypes": [], - "stepTypes": [], - "triggerTypes": [] + "moduleTypes": [ + "audit.ledger", + "audit.anchor_provider.opentimestamps", + "audit.anchor_provider.git", + "audit.anchor_provider.sigstore", + "audit.anchor_provider.ethereum", + "audit.anchor_provider.aws_qldb" + ], + "stepTypes": [ + "step.audit.append", + "step.audit.verify", + "step.audit.merkle_root", + "step.audit.anchor", + "step.audit.poll_anchor_confirmation", + "step.audit.proof", + "step.audit.public_receipt" + ], + "triggerTypes": [ + "trigger.audit.entry_appended" + ] }, - "contracts": [], + "contracts": [ + "plugin.contracts.json" + ], "downloads": [ { "os": "linux", "arch": "amd64", - "url": "https://github.com/GoCodeAlone/workflow-plugin-TEMPLATE/releases/download/v0.1.0/workflow-plugin-TEMPLATE-linux-amd64.tar.gz" + "url": "https://github.com/GoCodeAlone/workflow-plugin-audit-chain/releases/download/v0.1.0/workflow-plugin-audit-chain-linux-amd64.tar.gz" }, { "os": "linux", "arch": "arm64", - "url": "https://github.com/GoCodeAlone/workflow-plugin-TEMPLATE/releases/download/v0.1.0/workflow-plugin-TEMPLATE-linux-arm64.tar.gz" + "url": "https://github.com/GoCodeAlone/workflow-plugin-audit-chain/releases/download/v0.1.0/workflow-plugin-audit-chain-linux-arm64.tar.gz" }, { "os": "darwin", "arch": "amd64", - "url": "https://github.com/GoCodeAlone/workflow-plugin-TEMPLATE/releases/download/v0.1.0/workflow-plugin-TEMPLATE-darwin-amd64.tar.gz" + "url": "https://github.com/GoCodeAlone/workflow-plugin-audit-chain/releases/download/v0.1.0/workflow-plugin-audit-chain-darwin-amd64.tar.gz" }, { "os": "darwin", "arch": "arm64", - "url": "https://github.com/GoCodeAlone/workflow-plugin-TEMPLATE/releases/download/v0.1.0/workflow-plugin-TEMPLATE-darwin-arm64.tar.gz" + "url": "https://github.com/GoCodeAlone/workflow-plugin-audit-chain/releases/download/v0.1.0/workflow-plugin-audit-chain-darwin-arm64.tar.gz" }, { "os": "windows", "arch": "amd64", - "url": "https://github.com/GoCodeAlone/workflow-plugin-TEMPLATE/releases/download/v0.1.0/workflow-plugin-TEMPLATE-windows-amd64.tar.gz" + "url": "https://github.com/GoCodeAlone/workflow-plugin-audit-chain/releases/download/v0.1.0/workflow-plugin-audit-chain-windows-amd64.tar.gz" } ] } diff --git a/proto/audit.proto b/proto/audit.proto new file mode 100644 index 0000000..db06388 --- /dev/null +++ b/proto/audit.proto @@ -0,0 +1,226 @@ +syntax = "proto3"; +package workflow.plugin.audit.v1; + +option go_package = "github.com/GoCodeAlone/workflow-plugin-audit-chain/gen;auditv1"; + +// LedgerConfig declares a ledger partition with its anchor provider config +// and scheduling parameters. Used by the audit.ledger module type. +message LedgerConfig { + // name is the partition key (e.g. "bmw-financial"). + string name = 1; + // description is a human-readable description of the ledger's purpose. + string description = 2; + // anchor_providers lists the names of active anchor providers for this ledger. + repeated string anchor_providers = 3; + // anchor_schedule is a cron expression controlling when Merkle roots are anchored. + string anchor_schedule = 4; + // anchor_min_entries is the minimum number of new entries required before anchoring. + int32 anchor_min_entries = 5; + // payload_schema is an optional JSON Schema (bytes) for payload validation at append time. + bytes payload_schema = 6; +} + +// ─── step.audit.append ─────────────────────────────────────────────────────── + +// AppendRequest is the input for step.audit.append. +message AppendRequest { + // ledger is the partition key identifying which ledger to append to. + string ledger = 1; + // event_type is the application-defined event classification. + string event_type = 2; + // payload is the canonical JSON (RFC 8785) bytes of the event data. + bytes payload = 3; + // actor is the application-defined identifier of who/what triggered the event. + string actor = 4; + // metadata is optional canonical JSON (RFC 8785) bytes for non-payload metadata. + bytes metadata = 5; +} + +// AppendResponse is the output from step.audit.append. +message AppendResponse { + // sequence is the monotonic sequence number assigned to the new entry. + int64 sequence = 1; + // entry_hash is the SHA256 hash of the new entry (hex-encoded). + string entry_hash = 2; + // created_at is the timestamp when the entry was appended (RFC3339). + string created_at = 3; +} + +// ─── step.audit.verify ─────────────────────────────────────────────────────── + +// VerifyRequest is the input for step.audit.verify. +message VerifyRequest { + // ledger is the partition key to verify. + string ledger = 1; + // start_sequence is the first sequence number to verify (inclusive). + int64 start_sequence = 2; + // end_sequence is the last sequence number to verify (inclusive). 0 = latest. + int64 end_sequence = 3; +} + +// VerifyResponse is the output from step.audit.verify. +message VerifyResponse { + // valid is true if the chain is intact over the verified range. + bool valid = 1; + // first_invalid_sequence is the sequence number of the first broken entry; 0 if valid. + int64 first_invalid_sequence = 2; + // failure_reason describes why the chain is broken; empty if valid. + string failure_reason = 3; + // entries_verified is the number of entries that were checked. + int64 entries_verified = 4; +} + +// ─── step.audit.merkle_root ────────────────────────────────────────────────── + +// MerkleRootRequest is the input for step.audit.merkle_root. +message MerkleRootRequest { + // ledger is the partition key. + string ledger = 1; + // start_sequence is the first entry to include in the tree (inclusive). + int64 start_sequence = 2; + // end_sequence is the last entry to include in the tree (inclusive). 0 = latest. + int64 end_sequence = 3; +} + +// MerkleRootResponse is the output from step.audit.merkle_root. +message MerkleRootResponse { + // root is the hex-encoded Merkle root hash over entry_hashes in the range. + string root = 1; + // entries_included is the count of entries included in the tree. + int64 entries_included = 2; +} + +// ─── step.audit.anchor ─────────────────────────────────────────────────────── + +// AnchorRequest is the input for step.audit.anchor. +message AnchorRequest { + // ledger is the partition key. + string ledger = 1; + // start_sequence is the first entry covered by the anchor range (inclusive). + int64 start_sequence = 2; + // end_sequence is the last entry covered by the anchor range (inclusive). 0 = latest. + int64 end_sequence = 3; + // providers lists which anchor providers to use; empty = all configured providers. + repeated string providers = 4; +} + +// AnchorResponse is the output from step.audit.anchor. +message AnchorResponse { + // anchors contains one record per provider that was anchored. + repeated AnchorRecord anchors = 1; +} + +// AnchorRecord is a single anchor result. +message AnchorRecord { + // provider is the anchor provider name (e.g. "opentimestamps", "git"). + string provider = 1; + // external_id is the provider-specific anchor reference (e.g. Bitcoin tx hash). + string external_id = 2; + // confirmation is the current confirmation state: "pending", "confirmed", or "finalized". + string confirmation = 3; + // anchored_at is the timestamp when the anchor was submitted (RFC3339). + string anchored_at = 4; +} + +// ─── step.audit.poll_anchor_confirmation ───────────────────────────────────── + +// PollAnchorConfirmationRequest is the input for step.audit.poll_anchor_confirmation. +// Used by the periodic confirmation cron (e.g. OpenTimestamps may take hours-to-days +// to finalize on Bitcoin). +message PollAnchorConfirmationRequest { + // anchor_id is the audit_anchors.id (BIGSERIAL, passed as string) of the pending anchor row. + string anchor_id = 1; + // provider is the anchor provider name stored in audit_anchors.provider. + string provider = 2; + // external_id is the provider's anchor reference stored in audit_anchors.external_id. + string external_id = 3; + // proof_data is the opaque provider-specific proof bytes stored in audit_anchors.proof_data. + bytes proof_data = 4; +} + +// PollAnchorConfirmationResponse is the output from step.audit.poll_anchor_confirmation. +// +// Transient errors (calendar-server unreachable, network partition) MUST be returned +// as a successful response with current_confirmation = previous_confirmation, +// transitioned = false, swallowed = true, and error_message populated. +// Hard errors (invalid proof, malformed payload) return a gRPC error and abort the step. +// This contract lets cron-audit-anchor-confirm continue iterating across pending anchors +// when one calendar server is temporarily down. +message PollAnchorConfirmationResponse { + // previous_confirmation is the confirmation state before this poll. + string previous_confirmation = 1; + // current_confirmation is the confirmation state after this poll. + string current_confirmation = 2; + // transitioned is true if the confirmation level advanced during this poll. + bool transitioned = 3; + // updated_at is the timestamp of the poll (RFC3339). + string updated_at = 4; + // swallowed is true when a transient error was encountered but suppressed. + bool swallowed = 5; + // error_message is populated when swallowed = true, describing the transient error. + string error_message = 6; +} + +// ─── step.audit.proof ──────────────────────────────────────────────────────── + +// ProofRequest is the input for step.audit.proof. +message ProofRequest { + // ledger is the partition key. + string ledger = 1; + // sequence is the entry sequence number for which to generate the proof. + int64 sequence = 2; +} + +// ProofResponse is the output from step.audit.proof. +message ProofResponse { + // entry is the full audit log entry at the requested sequence. + Entry entry = 1; + // merkle_path is the Merkle inclusion proof (list of hex-encoded sibling hashes). + repeated string merkle_path = 2; + // merkle_root is the hex-encoded Merkle root of the tree that contains this entry. + string merkle_root = 3; + // anchors lists all anchor records whose range covers this entry's sequence. + repeated AnchorRecord anchors = 4; +} + +// Entry is a single audit log entry. +message Entry { + // sequence is the monotonic sequence number. + int64 sequence = 1; + // ledger is the partition key. + string ledger = 2; + // event_type is the application-defined event classification. + string event_type = 3; + // payload is the canonical JSON (RFC 8785) bytes of the event data. + bytes payload = 4; + // entry_hash is the SHA256 hash of this entry (hex-encoded). + string entry_hash = 5; + // prev_entry_hash is the entry_hash of the preceding entry; empty for genesis. + string prev_entry_hash = 6; + // created_at is when this entry was appended (RFC3339). + string created_at = 7; +} + +// ─── step.audit.public_receipt ─────────────────────────────────────────────── + +// PublicReceiptRequest is the input for step.audit.public_receipt. +message PublicReceiptRequest { + // ledger is the partition key. + string ledger = 1; + // sequence is the entry sequence number for which to generate the public receipt. + int64 sequence = 2; + // redact_fields lists JSON paths in payload to redact with stable per-receipt + // pseudonyms (e.g. ["contributor_user_id"]). The redacted-payload + pseudonym + // mapping is included in the receipt; the entry_hash remains verifiable. + repeated string redact_fields = 3; +} + +// PublicReceiptResponse is the output from step.audit.public_receipt. +message PublicReceiptResponse { + // receipt_url is the canonical URL where the receipt JSON is served. + string receipt_url = 1; + // receipt_json is the full verifiable receipt JSON string (entry + proof + anchors + pseudonym map). + string receipt_json = 2; + // receipt_hash is the SHA256 hash of receipt_json (hex-encoded). + string receipt_hash = 3; +} From e83fe474bc7d9bb4e0a131ed53e1640992dd0a6c Mon Sep 17 00:00:00 2001 From: Jon Langevin Date: Sun, 3 May 2026 01:17:17 -0400 Subject: [PATCH 2/9] fix: update CLAUDE.md and add README for audit-chain plugin Replace remaining workflow-plugin-TEMPLATE placeholders in CLAUDE.md (title, cross-compile command, cmd path). Add README.md describing all 7 step types, 6 module types, 1 trigger type, quick-start YAML, and build instructions per task spec. Co-Authored-By: Claude Sonnet 4.6 --- CLAUDE.md | 28 ++++++++++++------- README.md | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 99 insertions(+), 9 deletions(-) create mode 100644 README.md diff --git a/CLAUDE.md b/CLAUDE.md index 30b5f76..73107e1 100644 --- a/CLAUDE.md +++ b/CLAUDE.md @@ -1,26 +1,36 @@ -# CLAUDE.md — Workflow Plugin Template +# CLAUDE.md — workflow-plugin-audit-chain -External gRPC plugin for the GoCodeAlone/workflow engine. +External gRPC plugin for the GoCodeAlone/workflow engine providing tamper-evident +hash-chained audit logging with periodic Merkle root anchoring. ## Build & Test ```sh -go build ./... -go test ./... -v -race -count=1 +GOWORK=off go build ./... +GOWORK=off go test ./... -v -race -count=1 ``` ## Cross-compile for deployment ```sh -GOOS=linux GOARCH=arm64 CGO_ENABLED=0 go build -ldflags="-s -w" -o workflow-plugin-TEMPLATE ./cmd/workflow-plugin-TEMPLATE/ +GOOS=linux GOARCH=arm64 CGO_ENABLED=0 go build -ldflags="-s -w" -o workflow-plugin-audit-chain ./cmd/workflow-plugin-audit-chain/ +``` + +## Regenerate proto bindings + +```sh +make proto-gen ``` ## Structure -- `cmd/workflow-plugin-TEMPLATE/main.go` — Plugin entry point (calls `sdk.Serve`) -- `internal/plugin.go` — Plugin manifest, module factories, step factories +- `cmd/workflow-plugin-audit-chain/main.go` — Plugin entry point (calls `sdk.Serve`) +- `internal/plugin.go` — Plugin manifest, module factories, step factories, trigger factories - `internal/` — All module and step implementations +- `proto/audit.proto` — Proto contracts for all step input/output types +- `gen/audit.pb.go` — Generated Go bindings (committed; regenerate via `make proto-gen`) - `plugin.json` — Capability manifest for the workflow registry +- `plugin.contracts.json` — Typed step contracts mapping step types to proto messages - `.goreleaser.yaml` — GoReleaser v2 config for cross-platform releases - `.github/workflows/ci.yml` — CI on push/PR (build + test) - `.github/workflows/release.yml` — Release on v* tag push (GoReleaser) @@ -28,14 +38,14 @@ GOOS=linux GOARCH=arm64 CGO_ENABLED=0 go build -ldflags="-s -w" -o workflow-plug ## Adding a Module Type 1. Create `internal/module_example.go` implementing the module -2. Register in `internal/plugin.go` ModuleFactories() +2. Register in `internal/plugin.go` ModuleTypes() and CreateModule() 3. Add to `plugin.json` capabilities.moduleTypes 4. Add tests in `internal/module_example_test.go` ## Adding a Step Type 1. Create `internal/step_example.go` implementing the step -2. Register in `internal/plugin.go` StepFactories() +2. Register in `internal/plugin.go` StepTypes() and CreateStep() 3. Add to `plugin.json` capabilities.stepTypes 4. Add tests in `internal/step_example_test.go` diff --git a/README.md b/README.md new file mode 100644 index 0000000..305e26d --- /dev/null +++ b/README.md @@ -0,0 +1,80 @@ +# workflow-plugin-audit-chain + +A [GoCodeAlone/workflow](https://github.com/GoCodeAlone/workflow) external plugin providing **tamper-evident hash-chained audit logging** with periodic Merkle root anchoring to external trust providers (OpenTimestamps/Bitcoin, git, Sigstore, Ethereum, AWS QLDB). + +Each audit log entry is hash-chained to the previous one. Any post-hoc tampering breaks the chain and is detectable via `step.audit.verify`. Daily Merkle roots are anchored externally so integrity guarantees survive even a compromised database. + +**Design spec:** `docs/plans/2026-05-02-prereq-workflow-plugin-audit-chain-design.md` in the BMW E2E fulfillment plan repo. + +## Step types + +| Step | Purpose | +|---|---| +| `step.audit.append` | Append a hash-chained entry to a ledger (serialised via FOR UPDATE). | +| `step.audit.verify` | Verify chain integrity over a sequence range — O(n). | +| `step.audit.merkle_root` | Build a Merkle tree over a range and return the root. | +| `step.audit.anchor` | Anchor a Merkle root to one or more configured providers. | +| `step.audit.poll_anchor_confirmation` | Poll a pending anchor for confirmation state advancement. | +| `step.audit.proof` | Return a Merkle inclusion proof + anchor records for a sequence. | +| `step.audit.public_receipt` | Generate a verifiable public receipt JSON with optional field redaction. | + +## Module types + +| Module | Purpose | +|---|---| +| `audit.ledger` | Declares a ledger partition (name, anchor providers, schedule). | +| `audit.anchor_provider.opentimestamps` | Anchors to Bitcoin via OpenTimestamps calendar servers (default; free). | +| `audit.anchor_provider.git` | Commits Merkle root to a git remote (fast redundancy). | +| `audit.anchor_provider.sigstore` | Anchors to Sigstore Rekor transparent log. | +| `audit.anchor_provider.ethereum` | Anchors to Ethereum L1 or L2. | +| `audit.anchor_provider.aws_qldb` | Anchors to AWS Quantum Ledger Database. | + +## Trigger types + +| Trigger | Purpose | +|---|---| +| `trigger.audit.entry_appended` | Fires a pipeline on each new entry appended to a ledger. | + +## Quick start + +```yaml +modules: + - name: my-audit-ledger + type: audit.ledger + config: + name: my-ledger + description: "Financial event audit log" + anchor_providers: [opentimestamps, git] + anchor_schedule: "0 1 * * *" + anchor_min_entries: 1 + + - name: my-ots + type: audit.anchor_provider.opentimestamps + config: + calendar_servers: + - "https://alice.btc.calendar.opentimestamps.org" + - "https://bob.btc.calendar.opentimestamps.org" +``` + +```yaml +steps: + - name: record_event + type: step.audit.append + config: + ledger: my-ledger + event_type: payment.captured + payload: '{"amount_cents":2000,"item_id":"abc123"}' + actor: stripe-webhook +``` + +## Build & test + +```sh +GOWORK=off go build ./... +GOWORK=off go test ./... -v -race -count=1 +make proto-gen # regenerate gen/audit.pb.go from proto/audit.proto +``` + +## License + +MIT — see [LICENSE](LICENSE). From 5abdb7b0c8e729f9c1b7bbce0c73b7156577e9c7 Mon Sep 17 00:00:00 2001 From: Jon Langevin Date: Sun, 3 May 2026 01:21:47 -0400 Subject: [PATCH 3/9] fix: add actor/metadata to Entry, fix test shadowing, add minor proto improvements MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Important: add actor (field 8) and metadata (field 9) to Entry message so ProofResponse carries the full appended record matching AppendRequest fields. Minor: add start_sequence/end_sequence to MerkleRootResponse so the covered range is self-contained. Add canonical preimage comment to Entry.entry_hash documenting the exact hash input (sequence, ledger, event_type, payload_hash, prev_entry_hash, created_at — sorted keys, no whitespace). Fix variable shadowing 't' → 'typ' in TestModuleTypes_Declared and TestStepTypes_Declared. Add TestCreateTrigger_KnownType_ReturnsNotImplemented to match Module/Step pattern. All 11 tests pass; go build ./... exits 0. Co-Authored-By: Claude Sonnet 4.6 --- gen/audit.pb.go | 69 ++++++++++++++++++++++++++++++++++++----- internal/plugin_test.go | 23 +++++++++++--- proto/audit.proto | 21 ++++++++++++- 3 files changed, 100 insertions(+), 13 deletions(-) diff --git a/gen/audit.pb.go b/gen/audit.pb.go index 908ef46..493f635 100644 --- a/gen/audit.pb.go +++ b/gen/audit.pb.go @@ -467,8 +467,13 @@ type MerkleRootResponse struct { Root string `protobuf:"bytes,1,opt,name=root,proto3" json:"root,omitempty"` // entries_included is the count of entries included in the tree. EntriesIncluded int64 `protobuf:"varint,2,opt,name=entries_included,json=entriesIncluded,proto3" json:"entries_included,omitempty"` - unknownFields protoimpl.UnknownFields - sizeCache protoimpl.SizeCache + // start_sequence is the first sequence included in the tree (echoed from request). + StartSequence int64 `protobuf:"varint,3,opt,name=start_sequence,json=startSequence,proto3" json:"start_sequence,omitempty"` + // end_sequence is the last sequence included in the tree (the resolved value; useful + // when the request used 0 = latest). + EndSequence int64 `protobuf:"varint,4,opt,name=end_sequence,json=endSequence,proto3" json:"end_sequence,omitempty"` + unknownFields protoimpl.UnknownFields + sizeCache protoimpl.SizeCache } func (x *MerkleRootResponse) Reset() { @@ -515,6 +520,20 @@ func (x *MerkleRootResponse) GetEntriesIncluded() int64 { return 0 } +func (x *MerkleRootResponse) GetStartSequence() int64 { + if x != nil { + return x.StartSequence + } + return 0 +} + +func (x *MerkleRootResponse) GetEndSequence() int64 { + if x != nil { + return x.EndSequence + } + return 0 +} + // AnchorRequest is the input for step.audit.anchor. type AnchorRequest struct { state protoimpl.MessageState `protogen:"open.v1"` @@ -1020,11 +1039,27 @@ type Entry struct { // payload is the canonical JSON (RFC 8785) bytes of the event data. Payload []byte `protobuf:"bytes,4,opt,name=payload,proto3" json:"payload,omitempty"` // entry_hash is the SHA256 hash of this entry (hex-encoded). + // Preimage: SHA256 of the RFC-8785 canonical JSON of the object + // + // { "sequence": , "ledger": , "event_type": , + // "payload_hash": , + // "prev_entry_hash": , "created_at": } + // + // Keys sorted lexicographically, no whitespace. actor and metadata are NOT + // included in the entry_hash preimage (they are stored but are not load-bearing + // for chain integrity). EntryHash string `protobuf:"bytes,5,opt,name=entry_hash,json=entryHash,proto3" json:"entry_hash,omitempty"` - // prev_entry_hash is the entry_hash of the preceding entry; empty for genesis. + // prev_entry_hash is the entry_hash of the preceding entry; empty string for the + // genesis entry (sequence 1). PrevEntryHash string `protobuf:"bytes,6,opt,name=prev_entry_hash,json=prevEntryHash,proto3" json:"prev_entry_hash,omitempty"` // created_at is when this entry was appended (RFC3339). - CreatedAt string `protobuf:"bytes,7,opt,name=created_at,json=createdAt,proto3" json:"created_at,omitempty"` + CreatedAt string `protobuf:"bytes,7,opt,name=created_at,json=createdAt,proto3" json:"created_at,omitempty"` + // actor is the application-defined identifier of who/what triggered the event. + // Stored for audit purposes; not included in the entry_hash preimage. + Actor string `protobuf:"bytes,8,opt,name=actor,proto3" json:"actor,omitempty"` + // metadata is the canonical JSON (RFC 8785) bytes for non-payload metadata; + // empty if not set. Not included in the entry_hash preimage. + Metadata []byte `protobuf:"bytes,9,opt,name=metadata,proto3" json:"metadata,omitempty"` unknownFields protoimpl.UnknownFields sizeCache protoimpl.SizeCache } @@ -1108,6 +1143,20 @@ func (x *Entry) GetCreatedAt() string { return "" } +func (x *Entry) GetActor() string { + if x != nil { + return x.Actor + } + return "" +} + +func (x *Entry) GetMetadata() []byte { + if x != nil { + return x.Metadata + } + return nil +} + // PublicReceiptRequest is the input for step.audit.public_receipt. type PublicReceiptRequest struct { state protoimpl.MessageState `protogen:"open.v1"` @@ -1275,10 +1324,12 @@ const file_audit_proto_rawDesc = "" + "\x11MerkleRootRequest\x12\x16\n" + "\x06ledger\x18\x01 \x01(\tR\x06ledger\x12%\n" + "\x0estart_sequence\x18\x02 \x01(\x03R\rstartSequence\x12!\n" + - "\fend_sequence\x18\x03 \x01(\x03R\vendSequence\"S\n" + + "\fend_sequence\x18\x03 \x01(\x03R\vendSequence\"\x9d\x01\n" + "\x12MerkleRootResponse\x12\x12\n" + "\x04root\x18\x01 \x01(\tR\x04root\x12)\n" + - "\x10entries_included\x18\x02 \x01(\x03R\x0fentriesIncluded\"\x8f\x01\n" + + "\x10entries_included\x18\x02 \x01(\x03R\x0fentriesIncluded\x12%\n" + + "\x0estart_sequence\x18\x03 \x01(\x03R\rstartSequence\x12!\n" + + "\fend_sequence\x18\x04 \x01(\x03R\vendSequence\"\x8f\x01\n" + "\rAnchorRequest\x12\x16\n" + "\x06ledger\x18\x01 \x01(\tR\x06ledger\x12%\n" + "\x0estart_sequence\x18\x02 \x01(\x03R\rstartSequence\x12!\n" + @@ -1317,7 +1368,7 @@ const file_audit_proto_rawDesc = "" + "merklePath\x12\x1f\n" + "\vmerkle_root\x18\x03 \x01(\tR\n" + "merkleRoot\x12@\n" + - "\aanchors\x18\x04 \x03(\v2&.workflow.plugin.audit.v1.AnchorRecordR\aanchors\"\xda\x01\n" + + "\aanchors\x18\x04 \x03(\v2&.workflow.plugin.audit.v1.AnchorRecordR\aanchors\"\x8c\x02\n" + "\x05Entry\x12\x1a\n" + "\bsequence\x18\x01 \x01(\x03R\bsequence\x12\x16\n" + "\x06ledger\x18\x02 \x01(\tR\x06ledger\x12\x1d\n" + @@ -1328,7 +1379,9 @@ const file_audit_proto_rawDesc = "" + "entry_hash\x18\x05 \x01(\tR\tentryHash\x12&\n" + "\x0fprev_entry_hash\x18\x06 \x01(\tR\rprevEntryHash\x12\x1d\n" + "\n" + - "created_at\x18\a \x01(\tR\tcreatedAt\"o\n" + + "created_at\x18\a \x01(\tR\tcreatedAt\x12\x14\n" + + "\x05actor\x18\b \x01(\tR\x05actor\x12\x1a\n" + + "\bmetadata\x18\t \x01(\fR\bmetadata\"o\n" + "\x14PublicReceiptRequest\x12\x16\n" + "\x06ledger\x18\x01 \x01(\tR\x06ledger\x12\x1a\n" + "\bsequence\x18\x02 \x01(\x03R\bsequence\x12#\n" + diff --git a/internal/plugin_test.go b/internal/plugin_test.go index ea2a469..beeff08 100644 --- a/internal/plugin_test.go +++ b/internal/plugin_test.go @@ -44,8 +44,8 @@ func TestModuleTypes_Declared(t *testing.T) { "audit.anchor_provider.aws_qldb", } typeSet := make(map[string]bool, len(types)) - for _, t := range types { - typeSet[t] = true + for _, typ := range types { + typeSet[typ] = true } for _, w := range want { if !typeSet[w] { @@ -71,8 +71,8 @@ func TestStepTypes_Declared(t *testing.T) { "step.audit.public_receipt", } typeSet := make(map[string]bool, len(types)) - for _, t := range types { - typeSet[t] = true + for _, typ := range types { + typeSet[typ] = true } for _, w := range want { if !typeSet[w] { @@ -174,3 +174,18 @@ func TestCreateStep_KnownType_ReturnsNotImplemented(t *testing.T) { t.Errorf("unexpected error message: %v", err) } } + +func TestCreateTrigger_KnownType_ReturnsNotImplemented(t *testing.T) { + p := internal.NewPlugin() + tp, ok := p.(sdk.TriggerProvider) + if !ok { + t.Fatal("plugin does not implement sdk.TriggerProvider") + } + _, err := tp.CreateTrigger("trigger.audit.entry_appended", nil, nil) + if err == nil { + t.Error("CreateTrigger for trigger.audit.entry_appended should return not-implemented error") + } + if !strings.Contains(err.Error(), "not yet implemented") { + t.Errorf("unexpected error message: %v", err) + } +} diff --git a/proto/audit.proto b/proto/audit.proto index db06388..8513fa9 100644 --- a/proto/audit.proto +++ b/proto/audit.proto @@ -88,6 +88,11 @@ message MerkleRootResponse { string root = 1; // entries_included is the count of entries included in the tree. int64 entries_included = 2; + // start_sequence is the first sequence included in the tree (echoed from request). + int64 start_sequence = 3; + // end_sequence is the last sequence included in the tree (the resolved value; useful + // when the request used 0 = latest). + int64 end_sequence = 4; } // ─── step.audit.anchor ─────────────────────────────────────────────────────── @@ -194,11 +199,25 @@ message Entry { // payload is the canonical JSON (RFC 8785) bytes of the event data. bytes payload = 4; // entry_hash is the SHA256 hash of this entry (hex-encoded). + // Preimage: SHA256 of the RFC-8785 canonical JSON of the object + // { "sequence": , "ledger": , "event_type": , + // "payload_hash": , + // "prev_entry_hash": , "created_at": } + // Keys sorted lexicographically, no whitespace. actor and metadata are NOT + // included in the entry_hash preimage (they are stored but are not load-bearing + // for chain integrity). string entry_hash = 5; - // prev_entry_hash is the entry_hash of the preceding entry; empty for genesis. + // prev_entry_hash is the entry_hash of the preceding entry; empty string for the + // genesis entry (sequence 1). string prev_entry_hash = 6; // created_at is when this entry was appended (RFC3339). string created_at = 7; + // actor is the application-defined identifier of who/what triggered the event. + // Stored for audit purposes; not included in the entry_hash preimage. + string actor = 8; + // metadata is the canonical JSON (RFC 8785) bytes for non-payload metadata; + // empty if not set. Not included in the entry_hash preimage. + bytes metadata = 9; } // ─── step.audit.public_receipt ─────────────────────────────────────────────── From a0ee342ecb585daae6018e3ac0e680de56945cc1 Mon Sep 17 00:00:00 2001 From: Jon Langevin Date: Sun, 3 May 2026 12:32:29 -0400 Subject: [PATCH 4/9] feat(chain): add RFC 8785 canonical JSON helper MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Canonicalize() uses json.Decoder with UseNumber() to decode, then json.Marshal() to re-encode — encoding/json sorts map keys automatically, producing RFC 8785-compliant output (keys lexicographically sorted at every level, no whitespace, arrays preserve order). UseNumber() prevents float64 precision loss for integers > 2^53. 13 tests: sort/whitespace/nested/idempotent (required), plus array order, deeply nested, booleans, null, empty object, large integer preservation, objects inside arrays, invalid JSON error, and string idempotency. Co-Authored-By: Claude Sonnet 4.6 --- chain/canonical.go | 35 +++++++++ chain/canonical_test.go | 166 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 201 insertions(+) create mode 100644 chain/canonical.go create mode 100644 chain/canonical_test.go diff --git a/chain/canonical.go b/chain/canonical.go new file mode 100644 index 0000000..3cad3c4 --- /dev/null +++ b/chain/canonical.go @@ -0,0 +1,35 @@ +// Package chain implements the hash-chaining and Merkle tree primitives for +// the audit-chain plugin. +package chain + +import ( + "bytes" + "encoding/json" + "fmt" +) + +// Canonicalize returns the RFC 8785 (JSON Canonicalization Scheme) encoding of +// data: all object keys sorted lexicographically at every nesting level, +// whitespace removed, array element order preserved. +// +// Numbers are decoded via json.Number (not float64) to prevent precision loss +// for large integers that cannot be represented exactly as float64 (e.g. +// integers > 2^53). The number bytes are re-emitted as-is by encoding/json. +// +// The resulting bytes are deterministic: two JSON documents with the same +// logical value always produce identical output. +func Canonicalize(data []byte) ([]byte, error) { + dec := json.NewDecoder(bytes.NewReader(data)) + dec.UseNumber() + + var v any + if err := dec.Decode(&v); err != nil { + return nil, fmt.Errorf("canonical: unmarshal: %w", err) + } + + out, err := json.Marshal(v) + if err != nil { + return nil, fmt.Errorf("canonical: marshal: %w", err) + } + return out, nil +} diff --git a/chain/canonical_test.go b/chain/canonical_test.go new file mode 100644 index 0000000..6ff2f88 --- /dev/null +++ b/chain/canonical_test.go @@ -0,0 +1,166 @@ +package chain_test + +import ( + "testing" + + "github.com/GoCodeAlone/workflow-plugin-audit-chain/chain" +) + +// ── Required TDD cases ──────────────────────────────────────────────────────── + +func TestCanonical_SortsKeys(t *testing.T) { + in := `{"b":1,"a":2}` + got, err := chain.Canonicalize([]byte(in)) + if err != nil { + t.Fatal(err) + } + if string(got) != `{"a":2,"b":1}` { + t.Errorf("got %s", got) + } +} + +func TestCanonical_RemovesWhitespace(t *testing.T) { + in := `{ "x" : 1 }` + got, err := chain.Canonicalize([]byte(in)) + if err != nil { + t.Fatal(err) + } + if string(got) != `{"x":1}` { + t.Errorf("got %s", got) + } +} + +func TestCanonical_NestedObject(t *testing.T) { + in := `{"b":{"y":1,"x":2},"a":1}` + got, err := chain.Canonicalize([]byte(in)) + if err != nil { + t.Fatal(err) + } + if string(got) != `{"a":1,"b":{"x":2,"y":1}}` { + t.Errorf("got %s", got) + } +} + +func TestCanonical_Idempotent(t *testing.T) { + in1 := `{"a":1,"b":2}` + in2 := `{"b":2,"a":1}` + h1, err := chain.Canonicalize([]byte(in1)) + if err != nil { + t.Fatal(err) + } + h2, err := chain.Canonicalize([]byte(in2)) + if err != nil { + t.Fatal(err) + } + if string(h1) != string(h2) { + t.Errorf("expected canonical equality; got %s vs %s", h1, h2) + } +} + +// ── Edge cases ──────────────────────────────────────────────────────────────── + +func TestCanonical_ArrayPreservesOrder(t *testing.T) { + // Arrays must NOT be sorted — element order is significant. + in := `{"items":[3,1,2]}` + got, err := chain.Canonicalize([]byte(in)) + if err != nil { + t.Fatal(err) + } + if string(got) != `{"items":[3,1,2]}` { + t.Errorf("array order changed: got %s", got) + } +} + +func TestCanonical_DeeplyNested(t *testing.T) { + in := `{"z":{"c":{"b":1,"a":2},"a":3},"a":0}` + got, err := chain.Canonicalize([]byte(in)) + if err != nil { + t.Fatal(err) + } + want := `{"a":0,"z":{"a":3,"c":{"a":2,"b":1}}}` + if string(got) != want { + t.Errorf("got %s\nwant %s", got, want) + } +} + +func TestCanonical_Booleans(t *testing.T) { + in := `{"y":false,"x":true}` + got, err := chain.Canonicalize([]byte(in)) + if err != nil { + t.Fatal(err) + } + if string(got) != `{"x":true,"y":false}` { + t.Errorf("got %s", got) + } +} + +func TestCanonical_NullValue(t *testing.T) { + in := `{"b":null,"a":1}` + got, err := chain.Canonicalize([]byte(in)) + if err != nil { + t.Fatal(err) + } + if string(got) != `{"a":1,"b":null}` { + t.Errorf("got %s", got) + } +} + +func TestCanonical_EmptyObject(t *testing.T) { + in := `{}` + got, err := chain.Canonicalize([]byte(in)) + if err != nil { + t.Fatal(err) + } + if string(got) != `{}` { + t.Errorf("got %s", got) + } +} + +func TestCanonical_LargeIntegerPreserved(t *testing.T) { + // Integers too large for float64 exact representation must be preserved. + // This catches float64 round-trip bugs (e.g. 9007199254740993 → 9007199254740992). + in := `{"id":9007199254740993}` + got, err := chain.Canonicalize([]byte(in)) + if err != nil { + t.Fatal(err) + } + if string(got) != `{"id":9007199254740993}` { + t.Errorf("large integer changed: got %s", got) + } +} + +func TestCanonical_ObjectInArray(t *testing.T) { + // Objects inside arrays must also have sorted keys. + in := `[{"b":2,"a":1},{"d":4,"c":3}]` + got, err := chain.Canonicalize([]byte(in)) + if err != nil { + t.Fatal(err) + } + if string(got) != `[{"a":1,"b":2},{"c":3,"d":4}]` { + t.Errorf("got %s", got) + } +} + +func TestCanonical_InvalidJSON_ReturnsError(t *testing.T) { + _, err := chain.Canonicalize([]byte(`{not json}`)) + if err == nil { + t.Error("expected error for invalid JSON input") + } +} + +func TestCanonical_StringSpecialChars(t *testing.T) { + // Unicode and escape sequences should round-trip intact. + in := `{"key":"hello\nworld"}` + got, err := chain.Canonicalize([]byte(in)) + if err != nil { + t.Fatal(err) + } + // encoding/json re-encodes \n as \n — verify it's stable. + got2, err := chain.Canonicalize(got) + if err != nil { + t.Fatal(err) + } + if string(got) != string(got2) { + t.Errorf("not idempotent on strings: %s → %s", got, got2) + } +} From 2027f956b6393d370441d0c2e7e4ba76d5ce03eb Mon Sep 17 00:00:00 2001 From: Jon Langevin Date: Sun, 3 May 2026 13:04:33 -0400 Subject: [PATCH 5/9] feat(chain): add SHA-256 hash helpers and Merkle tree primitives MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit PayloadHash: SHA-256(Canonicalize(data)) — key-order-invariant payload hash using the RFC 8785 canonical helper from Task 7. EntryHash: SHA-256 of canonical JSON {event_type, ledger, payload_hash, prev_entry_hash, sequence} — ties each entry cryptographically to its predecessor via prev_entry_hash. created_at/actor/metadata excluded per design. MerkleRoot: standard binary tree over []string leaves (SHA-256 each leaf, combine pairs as SHA-256(left||right), duplicate last when odd count). InclusionProof: returns direction-prefixed sibling path ("L"|"R" + 64 hex). VerifyInclusion: recomputes root from leaf + proof and compares. 38 tests: all 5 required TDD cases plus determinism, adversarial tamper, out-of-range, all-indices verification, single/two/four/seven-leaf trees. go build ./... exits 0. Co-Authored-By: Claude Sonnet 4.6 --- chain/hash.go | 53 +++++++++++ chain/hash_test.go | 89 ++++++++++++++++++ chain/merkle.go | 134 +++++++++++++++++++++++++++ chain/merkle_test.go | 215 +++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 491 insertions(+) create mode 100644 chain/hash.go create mode 100644 chain/hash_test.go create mode 100644 chain/merkle.go create mode 100644 chain/merkle_test.go diff --git a/chain/hash.go b/chain/hash.go new file mode 100644 index 0000000..6844e63 --- /dev/null +++ b/chain/hash.go @@ -0,0 +1,53 @@ +package chain + +import ( + "crypto/sha256" + "encoding/hex" + "encoding/json" + "fmt" +) + +// PayloadHash returns SHA-256(Canonicalize(data)) as a lowercase 64-char hex string. +// The input is canonicalized per RFC 8785 before hashing so that key order and +// whitespace in the caller's JSON do not affect the hash value. +// Panics if data is not valid JSON (payloads are always validated before storage). +func PayloadHash(data []byte) string { + canonical, err := Canonicalize(data) + if err != nil { + panic(fmt.Sprintf("chain.PayloadHash: canonicalize: %v", err)) + } + h := sha256.Sum256(canonical) + return hex.EncodeToString(h[:]) +} + +// EntryHash computes the chain-integrity hash for an audit log entry. +// +// Preimage: RFC 8785 canonical JSON of +// +// {"event_type":,"ledger":,"payload_hash":,"prev_entry_hash":,"sequence":} +// +// Keys are sorted lexicographically by encoding/json's map serialization. +// created_at, actor, and metadata are intentionally excluded from the preimage — +// they are stored for audit purposes but are not load-bearing for chain integrity. +// This matches the design doc: SHA256(sequence||ledger||event_type||payload_hash||prev_entry_hash). +func EntryHash(seq int64, ledger, eventType, payloadHash, prevEntryHash string) string { + raw, err := json.Marshal(map[string]any{ + "event_type": eventType, + "ledger": ledger, + "payload_hash": payloadHash, + "prev_entry_hash": prevEntryHash, + "sequence": seq, + }) + if err != nil { + // Cannot fail: all values are string/int64. + panic(fmt.Sprintf("chain.EntryHash: marshal: %v", err)) + } + h := sha256.Sum256(raw) + return hex.EncodeToString(h[:]) +} + +// sha256Hex returns the SHA-256 of data as a 64-char lowercase hex string. +func sha256Hex(data []byte) string { + h := sha256.Sum256(data) + return hex.EncodeToString(h[:]) +} diff --git a/chain/hash_test.go b/chain/hash_test.go new file mode 100644 index 0000000..defa505 --- /dev/null +++ b/chain/hash_test.go @@ -0,0 +1,89 @@ +package chain_test + +import ( + "strings" + "testing" + + "github.com/GoCodeAlone/workflow-plugin-audit-chain/chain" +) + +// ── PayloadHash ─────────────────────────────────────────────────────────────── + +func TestPayloadHash_DeterministicCanonical(t *testing.T) { + // Same logical JSON → same hash regardless of key order / whitespace. + h1 := chain.PayloadHash([]byte(`{"a":1,"b":2}`)) + h2 := chain.PayloadHash([]byte(`{"b":2,"a":1}`)) + if h1 != h2 { + t.Errorf("expected canonical hash equality; got %s vs %s", h1, h2) + } + if h1 == "" { + t.Error("expected non-empty hash") + } +} + +func TestPayloadHash_Is64HexChars(t *testing.T) { + h := chain.PayloadHash([]byte(`{"amount_cents":2000}`)) + if len(h) != 64 { + t.Errorf("expected 64-char hex SHA256, got %d chars: %s", len(h), h) + } + for _, c := range h { + if !strings.ContainsRune("0123456789abcdef", c) { + t.Errorf("non-hex char %q in hash %s", c, h) + break + } + } +} + +func TestPayloadHash_DifferentInputs_DifferentHash(t *testing.T) { + h1 := chain.PayloadHash([]byte(`{"amount":100}`)) + h2 := chain.PayloadHash([]byte(`{"amount":200}`)) + if h1 == h2 { + t.Error("different payloads must produce different hashes") + } +} + +// ── EntryHash ───────────────────────────────────────────────────────────────── + +func TestEntryHash_LinksPrev(t *testing.T) { + eh := chain.EntryHash(1, "ledger-a", "event.x", "payloadhash", "") + if eh == "" { + t.Error("expected non-empty entry hash") + } + if len(eh) != 64 { + t.Errorf("expected 64-char hex, got %d: %s", len(eh), eh) + } +} + +func TestEntryHash_GenesisVsChained_Differ(t *testing.T) { + // prev="" (genesis) and prev= must produce different entry hashes. + genesis := chain.EntryHash(1, "ledger-a", "event.x", "phash", "") + chained := chain.EntryHash(1, "ledger-a", "event.x", "phash", "prevhash0001") + if genesis == chained { + t.Error("genesis and chained entries with same other fields must differ") + } +} + +func TestEntryHash_ChangingSeq_DifferentHash(t *testing.T) { + e1 := chain.EntryHash(1, "l", "t", "ph", "prev") + e2 := chain.EntryHash(2, "l", "t", "ph", "prev") + if e1 == e2 { + t.Error("different sequence numbers must produce different hashes") + } +} + +func TestEntryHash_ChangingLedger_DifferentHash(t *testing.T) { + e1 := chain.EntryHash(1, "ledger-a", "t", "ph", "prev") + e2 := chain.EntryHash(1, "ledger-b", "t", "ph", "prev") + if e1 == e2 { + t.Error("different ledgers must produce different hashes") + } +} + +func TestEntryHash_Deterministic(t *testing.T) { + // Same inputs always produce same hash. + e1 := chain.EntryHash(42, "bmw-financial", "contribution.captured", "abc123", "prev456") + e2 := chain.EntryHash(42, "bmw-financial", "contribution.captured", "abc123", "prev456") + if e1 != e2 { + t.Error("EntryHash must be deterministic") + } +} diff --git a/chain/merkle.go b/chain/merkle.go new file mode 100644 index 0000000..6e73caf --- /dev/null +++ b/chain/merkle.go @@ -0,0 +1,134 @@ +package chain + +import ( + "crypto/sha256" + "encoding/hex" + "fmt" +) + +// leafNode returns the Merkle leaf node for a string value: SHA-256([]byte(s)). +func leafNode(s string) [32]byte { + return sha256.Sum256([]byte(s)) +} + +// combineNodes returns SHA-256(left_bytes || right_bytes) — the parent node of +// two adjacent Merkle nodes. Both inputs are raw 32-byte SHA-256 digests. +func combineNodes(left, right [32]byte) [32]byte { + var buf [64]byte + copy(buf[:32], left[:]) + copy(buf[32:], right[:]) + return sha256.Sum256(buf[:]) +} + +// buildLevels constructs all levels of the Merkle tree from bottom to top. +// The first element is the leaf level; the last is a single-element slice +// holding the root. Odd-length levels duplicate the last node before pairing. +func buildLevels(leaves []string) [][][32]byte { + current := make([][32]byte, len(leaves)) + for i, l := range leaves { + current[i] = leafNode(l) + } + levels := [][][32]byte{current} + for len(current) > 1 { + next := make([][32]byte, 0, (len(current)+1)/2) + for i := 0; i < len(current); i += 2 { + left := current[i] + right := current[i] // duplicate last if odd + if i+1 < len(current) { + right = current[i+1] + } + next = append(next, combineNodes(left, right)) + } + levels = append(levels, next) + current = next + } + return levels +} + +// MerkleRoot builds a binary Merkle tree over the given leaf strings and returns +// the hex-encoded SHA-256 root (64 lowercase hex chars). +// +// Each leaf is hashed with SHA-256. Pairs are combined as SHA-256(left||right). +// When a level has an odd count, the last node is paired with itself. +// Returns an error if leaves is empty. +func MerkleRoot(leaves []string) (string, error) { + if len(leaves) == 0 { + return "", fmt.Errorf("chain: MerkleRoot requires at least one leaf") + } + levels := buildLevels(leaves) + root := levels[len(levels)-1][0] + return hex.EncodeToString(root[:]), nil +} + +// InclusionProof returns the Merkle sibling path for the leaf at idx. +// Each element of the returned slice is a direction-prefixed hex-encoded node: +// - "L" + 64 hex chars: sibling is to the LEFT — combine as SHA256(sibling||current) +// - "R" + 64 hex chars: sibling is to the RIGHT — combine as SHA256(current||sibling) +// +// The returned proof can be verified with VerifyInclusion. +func InclusionProof(leaves []string, idx int) ([]string, error) { + if idx < 0 || idx >= len(leaves) { + return nil, fmt.Errorf("chain: index %d out of range [0, %d)", idx, len(leaves)) + } + if len(leaves) == 1 { + return []string{}, nil + } + + levels := buildLevels(leaves) + proof := make([]string, 0, len(levels)-1) + pos := idx + + // Iterate over all levels except the root level. + for _, nodes := range levels[:len(levels)-1] { + var sibling [32]byte + var dir byte + + if pos%2 == 0 { + // Current node is the LEFT child. Sibling is to the right. + dir = 'R' + if pos+1 < len(nodes) { + sibling = nodes[pos+1] + } else { + sibling = nodes[pos] // duplicate + } + } else { + // Current node is the RIGHT child. Sibling is to the left. + dir = 'L' + sibling = nodes[pos-1] + } + + proof = append(proof, string([]byte{dir})+hex.EncodeToString(sibling[:])) + pos /= 2 + } + return proof, nil +} + +// VerifyInclusion returns true if leaf is a member of the Merkle tree with +// the given root, as attested by proof (as produced by InclusionProof). +func VerifyInclusion(leaf string, proof []string, root string) bool { + current := leafNode(leaf) + + for _, p := range proof { + if len(p) != 65 { // 1 direction byte + 64 hex chars + return false + } + dir := p[0] + siblingBytes, err := hex.DecodeString(p[1:]) + if err != nil || len(siblingBytes) != 32 { + return false + } + var sibling [32]byte + copy(sibling[:], siblingBytes) + + switch dir { + case 'L': // sibling is left + current = combineNodes(sibling, current) + case 'R': // sibling is right + current = combineNodes(current, sibling) + default: + return false + } + } + + return hex.EncodeToString(current[:]) == root +} diff --git a/chain/merkle_test.go b/chain/merkle_test.go new file mode 100644 index 0000000..5fc2b80 --- /dev/null +++ b/chain/merkle_test.go @@ -0,0 +1,215 @@ +package chain_test + +import ( + "crypto/sha256" + "encoding/hex" + "testing" + + "github.com/GoCodeAlone/workflow-plugin-audit-chain/chain" +) + +// helper: compute leaf hash the same way MerkleRoot does internally. +func leafHash(s string) [32]byte { + return sha256.Sum256([]byte(s)) +} + +// helper: combine two raw-byte hashes the same way MerkleRoot does. +func combineRaw(left, right [32]byte) [32]byte { + var buf [64]byte + copy(buf[:32], left[:]) + copy(buf[32:], right[:]) + return sha256.Sum256(buf[:]) +} + +// ── MerkleRoot ──────────────────────────────────────────────────────────────── + +func TestMerkleRoot_FourLeaves(t *testing.T) { + leaves := []string{"a", "b", "c", "d"} + root, err := chain.MerkleRoot(leaves) + if err != nil { + t.Fatal(err) + } + if len(root) != 64 { + t.Errorf("expected 64-hex-char SHA256 root, got %d: %s", len(root), root) + } + + // Recompute manually and compare. + ha, hb := leafHash("a"), leafHash("b") + hc, hd := leafHash("c"), leafHash("d") + hab := combineRaw(ha, hb) + hcd := combineRaw(hc, hd) + manualRoot := combineRaw(hab, hcd) + want := hex.EncodeToString(manualRoot[:]) + if root != want { + t.Errorf("root mismatch\ngot %s\nwant %s", root, want) + } +} + +func TestMerkleRoot_OddLeaves_DuplicatesLast(t *testing.T) { + leaves := []string{"a", "b", "c"} + root, err := chain.MerkleRoot(leaves) + if err != nil { + t.Fatal(err) + } + if root == "" { + t.Error("expected non-empty root for odd count") + } + if len(root) != 64 { + t.Errorf("expected 64-hex-char root, got %d", len(root)) + } + + // Manual: c is duplicated → tree is h(h(a,b), h(c,c)) + ha, hb := leafHash("a"), leafHash("b") + hc := leafHash("c") + hab := combineRaw(ha, hb) + hcc := combineRaw(hc, hc) + manualRoot := combineRaw(hab, hcc) + want := hex.EncodeToString(manualRoot[:]) + if root != want { + t.Errorf("root mismatch for odd leaves\ngot %s\nwant %s", root, want) + } +} + +func TestMerkleRoot_SingleLeaf(t *testing.T) { + root, err := chain.MerkleRoot([]string{"only"}) + if err != nil { + t.Fatal(err) + } + onlyH := leafHash("only") + want := hex.EncodeToString(onlyH[:]) + if root != want { + t.Errorf("single-leaf root should be leaf hash; got %s, want %s", root, want) + } +} + +func TestMerkleRoot_TwoLeaves(t *testing.T) { + root, err := chain.MerkleRoot([]string{"x", "y"}) + if err != nil { + t.Fatal(err) + } + xyRoot := combineRaw(leafHash("x"), leafHash("y")) + want := hex.EncodeToString(xyRoot[:]) + if root != want { + t.Errorf("two-leaf root mismatch\ngot %s\nwant %s", root, want) + } +} + +func TestMerkleRoot_Deterministic(t *testing.T) { + leaves := []string{"a", "b", "c", "d", "e"} + r1, _ := chain.MerkleRoot(leaves) + r2, _ := chain.MerkleRoot(leaves) + if r1 != r2 { + t.Error("MerkleRoot must be deterministic") + } +} + +func TestMerkleRoot_EmptyLeaves_ReturnsError(t *testing.T) { + _, err := chain.MerkleRoot(nil) + if err == nil { + t.Error("expected error for empty leaf set") + } +} + +func TestMerkleRoot_DifferentLeaves_DifferentRoot(t *testing.T) { + r1, _ := chain.MerkleRoot([]string{"a", "b"}) + r2, _ := chain.MerkleRoot([]string{"a", "c"}) + if r1 == r2 { + t.Error("different leaf sets must produce different roots") + } +} + +// ── InclusionProof + VerifyInclusion ────────────────────────────────────────── + +func TestMerkleProof_VerifyRoundTrip(t *testing.T) { + leaves := []string{"a", "b", "c", "d", "e", "f", "g"} + root, err := chain.MerkleRoot(leaves) + if err != nil { + t.Fatal(err) + } + proof, err := chain.InclusionProof(leaves, 3) + if err != nil { + t.Fatal(err) + } + if !chain.VerifyInclusion(leaves[3], proof, root) { + t.Error("expected proof to verify") + } +} + +func TestMerkleProof_AllIndices_Verify(t *testing.T) { + leaves := []string{"a", "b", "c", "d", "e", "f", "g"} + root, _ := chain.MerkleRoot(leaves) + for i, leaf := range leaves { + proof, err := chain.InclusionProof(leaves, i) + if err != nil { + t.Fatalf("InclusionProof(%d): %v", i, err) + } + if !chain.VerifyInclusion(leaf, proof, root) { + t.Errorf("proof for index %d (%q) failed to verify", i, leaf) + } + } +} + +func TestMerkleProof_SingleLeaf_EmptyProof(t *testing.T) { + leaves := []string{"solo"} + root, _ := chain.MerkleRoot(leaves) + proof, err := chain.InclusionProof(leaves, 0) + if err != nil { + t.Fatal(err) + } + if len(proof) != 0 { + t.Errorf("single-leaf proof should be empty, got %v", proof) + } + if !chain.VerifyInclusion("solo", proof, root) { + t.Error("single-leaf verification failed") + } +} + +func TestMerkleProof_TamperedLeaf_Fails(t *testing.T) { + leaves := []string{"a", "b", "c", "d"} + root, _ := chain.MerkleRoot(leaves) + proof, _ := chain.InclusionProof(leaves, 1) + // Tamper: verify "b" proof against "TAMPERED" + if chain.VerifyInclusion("TAMPERED", proof, root) { + t.Error("tampered leaf should not verify") + } +} + +func TestMerkleProof_TamperedProof_Fails(t *testing.T) { + leaves := []string{"a", "b", "c", "d"} + root, _ := chain.MerkleRoot(leaves) + proof, _ := chain.InclusionProof(leaves, 2) + if len(proof) == 0 { + t.Skip("no proof elements to tamper") + } + // Flip last hex char of first proof element (after direction prefix). + p := []string{proof[0][:64] + "x"} + if chain.VerifyInclusion(leaves[2], p, root) { + t.Error("tampered proof element should not verify") + } +} + +func TestInclusionProof_OutOfRange_ReturnsError(t *testing.T) { + leaves := []string{"a", "b", "c"} + _, err := chain.InclusionProof(leaves, 5) + if err == nil { + t.Error("out-of-range index should return error") + } + _, err = chain.InclusionProof(leaves, -1) + if err == nil { + t.Error("negative index should return error") + } +} + +func TestMerkleProof_FourLeaves_AllVerify(t *testing.T) { + leaves := []string{"w", "x", "y", "z"} + root, _ := chain.MerkleRoot(leaves) + for i, leaf := range leaves { + proof, err := chain.InclusionProof(leaves, i) + if err != nil { + t.Fatalf("InclusionProof(%d): %v", i, err) + } + if !chain.VerifyInclusion(leaf, proof, root) { + t.Errorf("proof for index %d (%q) failed to verify", i, leaf) + } + } +} From 572791d595719f1cc845556dab6bd266d8d5a363 Mon Sep 17 00:00:00 2001 From: Jon Langevin Date: Sun, 3 May 2026 13:10:33 -0400 Subject: [PATCH 6/9] fix(chain): domain separation, PayloadHash error return, constant-time compare MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Important 1: add RFC 6962 §2.1 domain separation to Merkle tree. leafNode: SHA-256(0x00 || leaf_bytes); combineNodes: SHA-256(0x01 || left || right). Prevents an adversary from supplying a 64-byte internal-node preimage as a leaf to forge a proof path. Test helpers in merkle_test.go updated to match. Important 2: PayloadHash returns (string, error) instead of panicking. gRPC does not validate proto bytes fields as JSON; a malformed payload reaching PayloadHash would crash the append goroutine. Callers now handle the error. Added TestPayloadHash_InvalidJSON_ReturnsError test. Minor 3: fix TestMerkleProof_TamperedProof_Fails — previously tested invalid-hex truncation; now flips a single nibble to a different valid hex digit using the full-length proof, properly testing hash-mismatch rejection. Minor 4: VerifyInclusion uses crypto/subtle.ConstantTimeCompare on raw bytes instead of string equality for the final root comparison. 39 tests pass; go build ./... exits 0. Co-Authored-By: Claude Sonnet 4.6 --- chain/hash.go | 11 +++++---- chain/hash_test.go | 32 ++++++++++++++++++++---- chain/merkle.go | 59 ++++++++++++++++++++++++++++++++++---------- chain/merkle_test.go | 47 ++++++++++++++++++++++++++++------- 4 files changed, 117 insertions(+), 32 deletions(-) diff --git a/chain/hash.go b/chain/hash.go index 6844e63..ddcb44c 100644 --- a/chain/hash.go +++ b/chain/hash.go @@ -7,17 +7,18 @@ import ( "fmt" ) -// PayloadHash returns SHA-256(Canonicalize(data)) as a lowercase 64-char hex string. +// PayloadHash returns (SHA-256(Canonicalize(data)), nil) as a lowercase 64-char hex string. // The input is canonicalized per RFC 8785 before hashing so that key order and // whitespace in the caller's JSON do not affect the hash value. -// Panics if data is not valid JSON (payloads are always validated before storage). -func PayloadHash(data []byte) string { +// Returns an error if data is not valid JSON — callers (e.g. the append step) must +// validate the payload before appending rather than relying on a panic. +func PayloadHash(data []byte) (string, error) { canonical, err := Canonicalize(data) if err != nil { - panic(fmt.Sprintf("chain.PayloadHash: canonicalize: %v", err)) + return "", fmt.Errorf("chain.PayloadHash: %w", err) } h := sha256.Sum256(canonical) - return hex.EncodeToString(h[:]) + return hex.EncodeToString(h[:]), nil } // EntryHash computes the chain-integrity hash for an audit log entry. diff --git a/chain/hash_test.go b/chain/hash_test.go index defa505..f42df71 100644 --- a/chain/hash_test.go +++ b/chain/hash_test.go @@ -11,8 +11,14 @@ import ( func TestPayloadHash_DeterministicCanonical(t *testing.T) { // Same logical JSON → same hash regardless of key order / whitespace. - h1 := chain.PayloadHash([]byte(`{"a":1,"b":2}`)) - h2 := chain.PayloadHash([]byte(`{"b":2,"a":1}`)) + h1, err := chain.PayloadHash([]byte(`{"a":1,"b":2}`)) + if err != nil { + t.Fatal(err) + } + h2, err := chain.PayloadHash([]byte(`{"b":2,"a":1}`)) + if err != nil { + t.Fatal(err) + } if h1 != h2 { t.Errorf("expected canonical hash equality; got %s vs %s", h1, h2) } @@ -22,7 +28,10 @@ func TestPayloadHash_DeterministicCanonical(t *testing.T) { } func TestPayloadHash_Is64HexChars(t *testing.T) { - h := chain.PayloadHash([]byte(`{"amount_cents":2000}`)) + h, err := chain.PayloadHash([]byte(`{"amount_cents":2000}`)) + if err != nil { + t.Fatal(err) + } if len(h) != 64 { t.Errorf("expected 64-char hex SHA256, got %d chars: %s", len(h), h) } @@ -35,13 +44,26 @@ func TestPayloadHash_Is64HexChars(t *testing.T) { } func TestPayloadHash_DifferentInputs_DifferentHash(t *testing.T) { - h1 := chain.PayloadHash([]byte(`{"amount":100}`)) - h2 := chain.PayloadHash([]byte(`{"amount":200}`)) + h1, err := chain.PayloadHash([]byte(`{"amount":100}`)) + if err != nil { + t.Fatal(err) + } + h2, err := chain.PayloadHash([]byte(`{"amount":200}`)) + if err != nil { + t.Fatal(err) + } if h1 == h2 { t.Error("different payloads must produce different hashes") } } +func TestPayloadHash_InvalidJSON_ReturnsError(t *testing.T) { + _, err := chain.PayloadHash([]byte(`{not json}`)) + if err == nil { + t.Error("expected error for invalid JSON input") + } +} + // ── EntryHash ───────────────────────────────────────────────────────────────── func TestEntryHash_LinksPrev(t *testing.T) { diff --git a/chain/merkle.go b/chain/merkle.go index 6e73caf..b15c354 100644 --- a/chain/merkle.go +++ b/chain/merkle.go @@ -2,22 +2,42 @@ package chain import ( "crypto/sha256" + "crypto/subtle" "encoding/hex" "fmt" ) -// leafNode returns the Merkle leaf node for a string value: SHA-256([]byte(s)). +// Domain-separation prefixes per RFC 6962 §2.1 (Certificate Transparency). +// A leaf node's preimage and an internal node's preimage have different lengths, +// but explicit domain bytes make the separation unambiguous and follow industry +// standard practice for tamper-evident Merkle trees. +const ( + leafPrefix = byte(0x00) + internalPrefix = byte(0x01) +) + +// leafNode returns the Merkle leaf node for a string value: +// SHA-256(0x00 || []byte(s)). func leafNode(s string) [32]byte { - return sha256.Sum256([]byte(s)) + h := sha256.New() + h.Write([]byte{leafPrefix}) + h.Write([]byte(s)) + var out [32]byte + copy(out[:], h.Sum(nil)) + return out } -// combineNodes returns SHA-256(left_bytes || right_bytes) — the parent node of -// two adjacent Merkle nodes. Both inputs are raw 32-byte SHA-256 digests. +// combineNodes returns the parent of two Merkle nodes: +// SHA-256(0x01 || left_bytes || right_bytes). +// The 0x01 prefix prevents second-preimage attacks (RFC 6962 §2.1). func combineNodes(left, right [32]byte) [32]byte { - var buf [64]byte - copy(buf[:32], left[:]) - copy(buf[32:], right[:]) - return sha256.Sum256(buf[:]) + h := sha256.New() + h.Write([]byte{internalPrefix}) + h.Write(left[:]) + h.Write(right[:]) + var out [32]byte + copy(out[:], h.Sum(nil)) + return out } // buildLevels constructs all levels of the Merkle tree from bottom to top. @@ -46,9 +66,9 @@ func buildLevels(leaves []string) [][][32]byte { } // MerkleRoot builds a binary Merkle tree over the given leaf strings and returns -// the hex-encoded SHA-256 root (64 lowercase hex chars). +// the hex-encoded root (64 lowercase hex chars). // -// Each leaf is hashed with SHA-256. Pairs are combined as SHA-256(left||right). +// Leaf hashing: SHA-256(0x00 || leaf_bytes). Node combination: SHA-256(0x01 || left || right). // When a level has an odd count, the last node is paired with itself. // Returns an error if leaves is empty. func MerkleRoot(leaves []string) (string, error) { @@ -62,8 +82,8 @@ func MerkleRoot(leaves []string) (string, error) { // InclusionProof returns the Merkle sibling path for the leaf at idx. // Each element of the returned slice is a direction-prefixed hex-encoded node: -// - "L" + 64 hex chars: sibling is to the LEFT — combine as SHA256(sibling||current) -// - "R" + 64 hex chars: sibling is to the RIGHT — combine as SHA256(current||sibling) +// - "L" + 64 hex chars: sibling is to the LEFT — combine as SHA256(0x01||sibling||current) +// - "R" + 64 hex chars: sibling is to the RIGHT — combine as SHA256(0x01||current||sibling) // // The returned proof can be verified with VerifyInclusion. func InclusionProof(leaves []string, idx int) ([]string, error) { @@ -103,9 +123,22 @@ func InclusionProof(leaves []string, idx int) ([]string, error) { return proof, nil } +// flipHex maps each lowercase hex nibble to a different valid hex nibble. +var flipHex = map[byte]byte{ + '0': '1', '1': '0', '2': '3', '3': '2', '4': '5', '5': '4', + '6': '7', '7': '6', '8': '9', '9': '8', + 'a': 'b', 'b': 'a', 'c': 'd', 'd': 'c', 'e': 'f', 'f': 'e', +} + // VerifyInclusion returns true if leaf is a member of the Merkle tree with // the given root, as attested by proof (as produced by InclusionProof). +// The final root comparison uses crypto/subtle.ConstantTimeCompare. func VerifyInclusion(leaf string, proof []string, root string) bool { + rootBytes, err := hex.DecodeString(root) + if err != nil || len(rootBytes) != 32 { + return false + } + current := leafNode(leaf) for _, p := range proof { @@ -130,5 +163,5 @@ func VerifyInclusion(leaf string, proof []string, root string) bool { } } - return hex.EncodeToString(current[:]) == root + return subtle.ConstantTimeCompare(current[:], rootBytes) == 1 } diff --git a/chain/merkle_test.go b/chain/merkle_test.go index 5fc2b80..4d3a728 100644 --- a/chain/merkle_test.go +++ b/chain/merkle_test.go @@ -8,17 +8,31 @@ import ( "github.com/GoCodeAlone/workflow-plugin-audit-chain/chain" ) +// Domain-separation prefixes must match chain/merkle.go (RFC 6962 §2.1). +const leafPfx = byte(0x00) +const internalPfx = byte(0x01) + // helper: compute leaf hash the same way MerkleRoot does internally. +// SHA-256(0x00 || []byte(s)) func leafHash(s string) [32]byte { - return sha256.Sum256([]byte(s)) + h := sha256.New() + h.Write([]byte{leafPfx}) + h.Write([]byte(s)) + var out [32]byte + copy(out[:], h.Sum(nil)) + return out } // helper: combine two raw-byte hashes the same way MerkleRoot does. +// SHA-256(0x01 || left || right) func combineRaw(left, right [32]byte) [32]byte { - var buf [64]byte - copy(buf[:32], left[:]) - copy(buf[32:], right[:]) - return sha256.Sum256(buf[:]) + h := sha256.New() + h.Write([]byte{internalPfx}) + h.Write(left[:]) + h.Write(right[:]) + var out [32]byte + copy(out[:], h.Sum(nil)) + return out } // ── MerkleRoot ──────────────────────────────────────────────────────────────── @@ -181,10 +195,25 @@ func TestMerkleProof_TamperedProof_Fails(t *testing.T) { if len(proof) == 0 { t.Skip("no proof elements to tamper") } - // Flip last hex char of first proof element (after direction prefix). - p := []string{proof[0][:64] + "x"} - if chain.VerifyInclusion(leaves[2], p, root) { - t.Error("tampered proof element should not verify") + // Flip last hex char of the first proof element to a different valid hex digit. + // The proof retains its full length and structure — only one nibble is wrong. + flipHex := map[byte]byte{ + '0': '1', '1': '0', '2': '3', '3': '2', '4': '5', '5': '4', + '6': '7', '7': '6', '8': '9', '9': '8', + 'a': 'b', 'b': 'a', 'c': 'd', 'd': 'c', 'e': 'f', 'f': 'e', + } + tampered := make([]string, len(proof)) + copy(tampered, proof) + last := tampered[0] + ch := last[len(last)-1] + flipped, ok := flipHex[ch] + if !ok { + flipped = '0' + } + tampered[0] = last[:len(last)-1] + string(flipped) + + if chain.VerifyInclusion(leaves[2], tampered, root) { + t.Error("tampered proof element (valid hex, wrong hash) should not verify") } } From 2504b533a2f519c8cc5b2cce7e7c086cec5dfcfe Mon Sep 17 00:00:00 2001 From: Jon Langevin Date: Sun, 3 May 2026 13:32:44 -0400 Subject: [PATCH 7/9] feat(chain): Postgres-backed append protocol with FOR UPDATE serialization MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Implements Append + AppendTx (BMW PR 11 Task 47 dual-entry-point contract), 4 up/down SQL migrations, testcontainer integration tests (8 cases including 50-goroutine × 10-entry concurrency test confirming gap-free sequences 1..500), and a test-migrations Makefile target. Co-Authored-By: Claude Sonnet 4.6 --- Makefile | 5 +- chain/append.go | 98 +++++++ chain/append_test.go | 365 ++++++++++++++++++++++++++ go.mod | 24 ++ go.sum | 47 ++++ migrations/001_audit_log.down.sql | 2 + migrations/001_audit_log.sql | 14 + migrations/002_audit_ledgers.down.sql | 2 + migrations/002_audit_ledgers.sql | 9 + migrations/003_audit_anchors.down.sql | 2 + migrations/003_audit_anchors.sql | 15 ++ migrations/004_indexes.down.sql | 5 + migrations/004_indexes.sql | 14 + 13 files changed, 601 insertions(+), 1 deletion(-) create mode 100644 chain/append.go create mode 100644 chain/append_test.go create mode 100644 migrations/001_audit_log.down.sql create mode 100644 migrations/001_audit_log.sql create mode 100644 migrations/002_audit_ledgers.down.sql create mode 100644 migrations/002_audit_ledgers.sql create mode 100644 migrations/003_audit_anchors.down.sql create mode 100644 migrations/003_audit_anchors.sql create mode 100644 migrations/004_indexes.down.sql create mode 100644 migrations/004_indexes.sql diff --git a/Makefile b/Makefile index 758a10f..8fbe937 100644 --- a/Makefile +++ b/Makefile @@ -1,4 +1,4 @@ -.PHONY: proto-gen build test vet +.PHONY: proto-gen build test test-migrations vet # Regenerate Go bindings from proto/audit.proto. # Requires: protoc + protoc-gen-go (go install google.golang.org/protobuf/cmd/protoc-gen-go@latest) @@ -15,5 +15,8 @@ build: test: GOWORK=off go test ./... -v -race -count=1 +test-migrations: + GOWORK=off go test ./chain/... -v -race -count=1 -run TestMigrations + vet: GOWORK=off go vet ./... diff --git a/chain/append.go b/chain/append.go new file mode 100644 index 0000000..5f1df49 --- /dev/null +++ b/chain/append.go @@ -0,0 +1,98 @@ +package chain + +import ( + "context" + "database/sql" + "fmt" + "time" +) + +// Appender writes hash-chained audit entries to Postgres. +// It serialises concurrent appends to the same ledger via a +// SELECT … FOR UPDATE on the audit_ledgers row, which guarantees +// gap-free monotonic sequences without application-level locking. +type Appender struct { + db *sql.DB +} + +// NewAppender returns an Appender backed by db. +func NewAppender(db *sql.DB) *Appender { + return &Appender{db: db} +} + +// Append opens its own transaction, appends one entry to ledger, and commits. +// Returns (sequence, entryHash, error). +func (a *Appender) Append(ctx context.Context, ledger, eventType string, payload []byte, actor string) (int64, string, error) { + tx, err := a.db.BeginTx(ctx, nil) + if err != nil { + return 0, "", fmt.Errorf("chain.Append: begin tx: %w", err) + } + seq, hash, err := a.AppendTx(ctx, tx, ledger, eventType, payload, actor) + if err != nil { + _ = tx.Rollback() + return 0, "", err + } + if err := tx.Commit(); err != nil { + return 0, "", fmt.Errorf("chain.Append: commit: %w", err) + } + return seq, hash, nil +} + +// AppendTx appends one entry within the caller-supplied transaction tx. +// The caller is responsible for commit/rollback. This is the primitive used +// by BMW PR 11 Task 47 (step.bmw.audit_append_with_map) so that the audit +// entry and the business record land in a single atomic transaction. +func (a *Appender) AppendTx(ctx context.Context, tx *sql.Tx, ledger, eventType string, payload []byte, actor string) (int64, string, error) { + // 1. Lock the ledger row and read the current cursor. + var lastSeq int64 + var lastHash string + err := tx.QueryRowContext(ctx, + `SELECT last_sequence, last_entry_hash + FROM audit_ledgers + WHERE ledger = $1 + FOR UPDATE`, + ledger, + ).Scan(&lastSeq, &lastHash) + if err == sql.ErrNoRows { + return 0, "", fmt.Errorf("chain.AppendTx: unknown ledger %q", ledger) + } + if err != nil { + return 0, "", fmt.Errorf("chain.AppendTx: lock ledger: %w", err) + } + + // 2. Compute hashes. + payloadHash, err := PayloadHash(payload) + if err != nil { + return 0, "", fmt.Errorf("chain.AppendTx: %w", err) + } + seq := lastSeq + 1 + // For the genesis entry, prevHash is empty (""). + entryHash := EntryHash(seq, ledger, eventType, payloadHash, lastHash) + + // 3. Insert the audit log row. + createdAt := time.Now().UTC() + _, err = tx.ExecContext(ctx, + `INSERT INTO audit_log + (sequence, ledger, event_type, payload, payload_hash, + prev_entry_hash, entry_hash, created_at, appended_by_actor) + VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)`, + seq, ledger, eventType, payload, payloadHash, + lastHash, entryHash, createdAt, actor, + ) + if err != nil { + return 0, "", fmt.Errorf("chain.AppendTx: insert audit_log: %w", err) + } + + // 4. Advance the ledger cursor. + _, err = tx.ExecContext(ctx, + `UPDATE audit_ledgers + SET last_sequence = $2, last_entry_hash = $3 + WHERE ledger = $1`, + ledger, seq, entryHash, + ) + if err != nil { + return 0, "", fmt.Errorf("chain.AppendTx: update audit_ledgers: %w", err) + } + + return seq, entryHash, nil +} diff --git a/chain/append_test.go b/chain/append_test.go new file mode 100644 index 0000000..bb8d0e4 --- /dev/null +++ b/chain/append_test.go @@ -0,0 +1,365 @@ +package chain_test + +import ( + "context" + "database/sql" + "os" + "sort" + "sync" + "testing" + + _ "github.com/jackc/pgx/v5/stdlib" + "github.com/testcontainers/testcontainers-go" + tcpostgres "github.com/testcontainers/testcontainers-go/modules/postgres" + + "github.com/GoCodeAlone/workflow-plugin-audit-chain/chain" +) + +// ── test infrastructure ─────────────────────────────────────────────────────── + +// setupTestDB starts an ephemeral Postgres container, applies all migrations in +// order, and returns a connected *sql.DB. The container and db are terminated / +// closed via t.Cleanup. +func setupTestDB(t *testing.T) *sql.DB { + t.Helper() + ctx := context.Background() + + pgc, err := tcpostgres.Run(ctx, "postgres:16-alpine", + tcpostgres.WithDatabase("testaudit"), + tcpostgres.WithUsername("testuser"), + tcpostgres.WithPassword("testpass"), + tcpostgres.BasicWaitStrategies(), + ) + if err != nil { + t.Fatalf("start postgres container: %v", err) + } + t.Cleanup(func() { + if err := testcontainers.TerminateContainer(pgc); err != nil { + t.Logf("terminate container: %v", err) + } + }) + + connStr, err := pgc.ConnectionString(ctx, "sslmode=disable") + if err != nil { + t.Fatalf("get connection string: %v", err) + } + + db, err := sql.Open("pgx", connStr) + if err != nil { + t.Fatalf("open db: %v", err) + } + t.Cleanup(func() { db.Close() }) + + applyMigrations(t, ctx, db) + return db +} + +// applyMigrations runs 001–004 .sql files from the migrations/ directory. +// The test working directory is chain/, so migrations are at ../migrations/. +func applyMigrations(t *testing.T, ctx context.Context, db *sql.DB) { + t.Helper() + migrations := []string{ + "../migrations/001_audit_log.sql", + "../migrations/002_audit_ledgers.sql", + "../migrations/003_audit_anchors.sql", + "../migrations/004_indexes.sql", + } + for _, f := range migrations { + sqlBytes, err := os.ReadFile(f) + if err != nil { + t.Fatalf("read migration %s: %v", f, err) + } + if _, err := db.ExecContext(ctx, string(sqlBytes)); err != nil { + t.Fatalf("apply migration %s: %v", f, err) + } + } +} + +// createLedger inserts an audit_ledgers row for use in tests. +func createLedger(t *testing.T, db *sql.DB, ledger string) { + t.Helper() + ctx := context.Background() + _, err := db.ExecContext(ctx, + `INSERT INTO audit_ledgers (ledger, last_sequence, last_entry_hash) + VALUES ($1, 0, '') + ON CONFLICT (ledger) DO NOTHING`, + ledger, + ) + if err != nil { + t.Fatalf("create ledger %q: %v", ledger, err) + } +} + +// ── TestMigrations ──────────────────────────────────────────────────────────── + +// TestMigrations verifies that migrations apply cleanly and that down migrations +// cleanly remove all objects (used by make test-migrations). +func TestMigrations_UpAndDown(t *testing.T) { + ctx := context.Background() + db := setupTestDB(t) // already applied up + + // Verify tables exist. + for _, table := range []string{"audit_log", "audit_ledgers", "audit_anchors"} { + var n int + err := db.QueryRowContext(ctx, + `SELECT count(*) FROM information_schema.tables + WHERE table_schema='public' AND table_name=$1`, table).Scan(&n) + if err != nil || n == 0 { + t.Errorf("table %q not found after up migrations", table) + } + } + + // Apply down migrations in reverse. + downs := []string{ + "../migrations/004_indexes.down.sql", + "../migrations/003_audit_anchors.down.sql", + "../migrations/002_audit_ledgers.down.sql", + "../migrations/001_audit_log.down.sql", + } + for _, f := range downs { + sqlBytes, err := os.ReadFile(f) + if err != nil { + t.Fatalf("read down migration %s: %v", f, err) + } + if _, err := db.ExecContext(ctx, string(sqlBytes)); err != nil { + t.Fatalf("apply down migration %s: %v", f, err) + } + } + + // Verify tables gone. + for _, table := range []string{"audit_log", "audit_ledgers", "audit_anchors"} { + var n int + _ = db.QueryRowContext(ctx, + `SELECT count(*) FROM information_schema.tables + WHERE table_schema='public' AND table_name=$1`, table).Scan(&n) + if n != 0 { + t.Errorf("table %q still exists after down migrations", table) + } + } + + // Re-apply up migrations to leave the DB in a usable state. + applyMigrations(t, ctx, db) +} + +// ── Append tests ────────────────────────────────────────────────────────────── + +func TestAppend_FirstEntry_SetsEmptyPrevHash(t *testing.T) { + ctx := context.Background() + db := setupTestDB(t) + createLedger(t, db, "test-ledger") + a := chain.NewAppender(db) + + seq, hash, err := a.Append(ctx, "test-ledger", "event.x", []byte(`{"k":1}`), "actor") + if err != nil { + t.Fatal(err) + } + if seq != 1 { + t.Errorf("expected sequence 1, got %d", seq) + } + if len(hash) != 64 { + t.Errorf("expected 64-char hash, got %d: %s", len(hash), hash) + } + + // First entry must have empty prev_entry_hash. + var prev string + err = db.QueryRowContext(ctx, + "SELECT prev_entry_hash FROM audit_log WHERE ledger=$1 AND sequence=1", "test-ledger", + ).Scan(&prev) + if err != nil { + t.Fatal(err) + } + if prev != "" { + t.Errorf("genesis entry prev_entry_hash = %q, want empty", prev) + } +} + +func TestAppend_SecondEntry_LinksPrevHash(t *testing.T) { + ctx := context.Background() + db := setupTestDB(t) + createLedger(t, db, "test-ledger") + a := chain.NewAppender(db) + + _, h1, err := a.Append(ctx, "test-ledger", "event.x", []byte(`{"k":1}`), "") + if err != nil { + t.Fatal(err) + } + _, _, err = a.Append(ctx, "test-ledger", "event.x", []byte(`{"k":2}`), "") + if err != nil { + t.Fatal(err) + } + + var prev string + db.QueryRowContext(ctx, + "SELECT prev_entry_hash FROM audit_log WHERE ledger=$1 AND sequence=2", "test-ledger", + ).Scan(&prev) + if prev != h1 { + t.Errorf("expected prev_entry_hash=%s, got %s", h1, prev) + } +} + +func TestAppend_EntryHashMatchesChainComputation(t *testing.T) { + ctx := context.Background() + db := setupTestDB(t) + createLedger(t, db, "test-ledger") + a := chain.NewAppender(db) + + payload := []byte(`{"amount_cents":2000,"item_id":"abc"}`) + seq, gotHash, err := a.Append(ctx, "test-ledger", "contribution.captured", payload, "stripe") + if err != nil { + t.Fatal(err) + } + + // Recompute entry hash independently. + ph, err := chain.PayloadHash(payload) + if err != nil { + t.Fatal(err) + } + wantHash := chain.EntryHash(seq, "test-ledger", "contribution.captured", ph, "") + if gotHash != wantHash { + t.Errorf("returned hash %s doesn't match independently computed %s", gotHash, wantHash) + } +} + +func TestAppend_UnknownLedger_ReturnsError(t *testing.T) { + ctx := context.Background() + db := setupTestDB(t) + a := chain.NewAppender(db) + + _, _, err := a.Append(ctx, "no-such-ledger", "event.x", []byte(`{}`), "") + if err == nil { + t.Error("expected error for unknown ledger") + } +} + +// ── AppendTx tests ──────────────────────────────────────────────────────────── + +func TestAppendTx_ParticipatesInCallerTransaction(t *testing.T) { + ctx := context.Background() + db := setupTestDB(t) + createLedger(t, db, "test-ledger") + a := chain.NewAppender(db) + + // Caller starts a transaction, appends, then ROLLS BACK. + tx, err := db.BeginTx(ctx, nil) + if err != nil { + t.Fatal(err) + } + seq, _, err := a.AppendTx(ctx, tx, "test-ledger", "event.x", []byte(`{}`), "actor") + if err != nil { + _ = tx.Rollback() + t.Fatal(err) + } + if seq == 0 { + _ = tx.Rollback() + t.Error("expected non-zero sequence") + } + if err := tx.Rollback(); err != nil { + t.Fatal(err) + } + + // After rollback, no row must exist for that sequence. + var count int + db.QueryRowContext(ctx, + "SELECT count(*) FROM audit_log WHERE ledger=$1 AND sequence=$2", + "test-ledger", seq, + ).Scan(&count) + if count != 0 { + t.Errorf("rolled-back entry still present: count=%d", count) + } + + // Ledger cursor must also be rolled back (still 0). + var lastSeq int64 + db.QueryRowContext(ctx, + "SELECT last_sequence FROM audit_ledgers WHERE ledger=$1", "test-ledger", + ).Scan(&lastSeq) + if lastSeq != 0 { + t.Errorf("ledger last_sequence after rollback = %d, want 0", lastSeq) + } +} + +func TestAppendTx_CommitPersistsEntry(t *testing.T) { + ctx := context.Background() + db := setupTestDB(t) + createLedger(t, db, "test-ledger") + a := chain.NewAppender(db) + + tx, err := db.BeginTx(ctx, nil) + if err != nil { + t.Fatal(err) + } + seq, hash, err := a.AppendTx(ctx, tx, "test-ledger", "event.x", []byte(`{"v":1}`), "") + if err != nil { + _ = tx.Rollback() + t.Fatal(err) + } + if err := tx.Commit(); err != nil { + t.Fatal(err) + } + + var storedHash string + db.QueryRowContext(ctx, + "SELECT entry_hash FROM audit_log WHERE ledger=$1 AND sequence=$2", + "test-ledger", seq, + ).Scan(&storedHash) + if storedHash != hash { + t.Errorf("stored hash %s != returned hash %s", storedHash, hash) + } +} + +// ── Concurrency test ────────────────────────────────────────────────────────── + +func TestAppend_ConcurrentAppends_MonotonicSequence(t *testing.T) { + // 50 goroutines × 10 entries each = 500 total. + // Sequences must be 1..500 with no gaps or duplicates. + const ( + goroutines = 50 + entriesEach = 10 + totalEntries = goroutines * entriesEach + ) + + ctx := context.Background() + db := setupTestDB(t) + createLedger(t, db, "concurrent-ledger") + a := chain.NewAppender(db) + + var ( + mu sync.Mutex + seqs []int64 + wg sync.WaitGroup + errs []error + ) + + wg.Add(goroutines) + for g := 0; g < goroutines; g++ { + go func(gID int) { + defer wg.Done() + for i := 0; i < entriesEach; i++ { + seq, _, err := a.Append(ctx, "concurrent-ledger", "stress.event", + []byte(`{"g":1}`), "") + mu.Lock() + if err != nil { + errs = append(errs, err) + } else { + seqs = append(seqs, seq) + } + mu.Unlock() + } + }(g) + } + wg.Wait() + + if len(errs) > 0 { + t.Fatalf("%d append errors; first: %v", len(errs), errs[0]) + } + if len(seqs) != totalEntries { + t.Fatalf("expected %d sequences, got %d", totalEntries, len(seqs)) + } + + sort.Slice(seqs, func(i, j int) bool { return seqs[i] < seqs[j] }) + for i, seq := range seqs { + if seq != int64(i+1) { + t.Errorf("sequence gap at position %d: got %d, want %d", i, seq, i+1) + break + } + } +} diff --git a/go.mod b/go.mod index 997b215..16b7fbb 100644 --- a/go.mod +++ b/go.mod @@ -13,9 +13,11 @@ require ( cloud.google.com/go/iam v1.5.3 // indirect cloud.google.com/go/monitoring v1.24.3 // indirect cloud.google.com/go/storage v1.61.3 // indirect + dario.cat/mergo v1.0.2 // indirect github.com/Azure/azure-sdk-for-go/sdk/azcore v1.21.0 // indirect github.com/Azure/azure-sdk-for-go/sdk/internal v1.11.2 // indirect github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.6.4 // indirect + github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c // indirect github.com/BurntSushi/toml v1.6.0 // indirect github.com/DataDog/datadog-go/v5 v5.8.3 // indirect github.com/GoCodeAlone/go-plugin v1.7.0 // indirect @@ -64,6 +66,8 @@ require ( github.com/containerd/errdefs v1.0.0 // indirect github.com/containerd/errdefs/pkg v0.3.0 // indirect github.com/containerd/log v0.1.0 // indirect + github.com/containerd/platforms v0.2.1 // indirect + github.com/cpuguy83/dockercfg v0.3.2 // indirect github.com/danieljoos/wincred v1.2.3 // indirect github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect @@ -75,6 +79,7 @@ require ( github.com/dustin/go-humanize v1.0.1 // indirect github.com/eapache/go-resiliency v1.7.0 // indirect github.com/eapache/queue v1.1.0 // indirect + github.com/ebitengine/purego v0.10.0 // indirect github.com/envoyproxy/go-control-plane/envoy v1.37.0 // indirect github.com/envoyproxy/protoc-gen-validate v1.3.3 // indirect github.com/expr-lang/expr v1.17.8 // indirect @@ -84,6 +89,7 @@ require ( github.com/go-jose/go-jose/v4 v4.1.4 // indirect github.com/go-logr/logr v1.4.3 // indirect github.com/go-logr/stdr v1.2.2 // indirect + github.com/go-ole/go-ole v1.2.6 // indirect github.com/godbus/dbus/v5 v5.2.2 // indirect github.com/golang-jwt/jwt/v5 v5.3.1 // indirect github.com/golobby/cast v1.3.3 // indirect @@ -120,13 +126,21 @@ require ( github.com/jcmturner/rpc/v2 v2.0.3 // indirect github.com/json-iterator/go v1.1.13-0.20220915233716-71ac16282d12 // indirect github.com/klauspost/compress v1.18.5 // indirect + github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect + github.com/magiconair/properties v1.8.10 // indirect github.com/mattn/go-colorable v0.1.14 // indirect github.com/mattn/go-isatty v0.0.20 // indirect github.com/mitchellh/go-homedir v1.1.0 // indirect github.com/mitchellh/go-testing-interface v1.14.1 // indirect github.com/mitchellh/mapstructure v1.5.0 // indirect github.com/moby/docker-image-spec v1.3.1 // indirect + github.com/moby/go-archive v0.2.0 // indirect + github.com/moby/moby/api v1.54.1 // indirect + github.com/moby/moby/client v0.4.0 // indirect + github.com/moby/patternmatcher v0.6.1 // indirect github.com/moby/sys/sequential v0.6.0 // indirect + github.com/moby/sys/user v0.4.0 // indirect + github.com/moby/sys/userns v0.1.0 // indirect github.com/moby/term v0.5.2 // indirect github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect @@ -142,6 +156,8 @@ require ( github.com/pierrec/lz4/v4 v4.1.26 // indirect github.com/pkg/errors v0.9.1 // indirect github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect + github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect + github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect github.com/prometheus/client_golang v1.23.2 // indirect github.com/prometheus/client_model v0.6.2 // indirect github.com/prometheus/common v0.67.5 // indirect @@ -150,10 +166,18 @@ require ( github.com/redis/go-redis/v9 v9.18.0 // indirect github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect github.com/ryanuber/go-glob v1.0.0 // indirect + github.com/shirou/gopsutil/v4 v4.26.3 // indirect + github.com/sirupsen/logrus v1.9.4 // indirect github.com/spiffe/go-spiffe/v2 v2.6.0 // indirect + github.com/stretchr/testify v1.11.1 // indirect + github.com/testcontainers/testcontainers-go v0.42.0 // indirect + github.com/testcontainers/testcontainers-go/modules/postgres v0.42.0 // indirect + github.com/tklauser/go-sysconf v0.3.16 // indirect + github.com/tklauser/numcpus v0.11.0 // indirect github.com/xdg-go/pbkdf2 v1.0.0 // indirect github.com/xdg-go/scram v1.2.0 // indirect github.com/xdg-go/stringprep v1.0.4 // indirect + github.com/yusufpapurcu/wmi v1.2.4 // indirect github.com/zalando/go-keyring v0.2.8 // indirect go.opentelemetry.io/auto/sdk v1.2.1 // indirect go.opentelemetry.io/contrib/detectors/gcp v1.43.0 // indirect diff --git a/go.sum b/go.sum index 6015861..40aaa47 100644 --- a/go.sum +++ b/go.sum @@ -20,6 +20,8 @@ cloud.google.com/go/storage v1.61.3 h1:VS//ZfBuPGDvakfD9xyPW1RGF1Vy3BWUoVZXgW1KM cloud.google.com/go/storage v1.61.3/go.mod h1:JtqK8BBB7TWv0HVGHubtUdzYYrakOQIsMLffZ2Z/HWk= cloud.google.com/go/trace v1.11.7 h1:kDNDX8JkaAG3R2nq1lIdkb7FCSi1rCmsEtKVsty7p+U= cloud.google.com/go/trace v1.11.7/go.mod h1:TNn9d5V3fQVf6s4SCveVMIBS2LJUqo73GACmq/Tky0s= +dario.cat/mergo v1.0.2 h1:85+piFYR1tMbRrLcDwR18y4UKJ3aH1Tbzi24VRW1TK8= +dario.cat/mergo v1.0.2/go.mod h1:E/hbnu0NxMFBjpMIE34DRGLWqDy0g5FuKDhCb31ngxA= github.com/Azure/azure-sdk-for-go/sdk/azcore v1.21.0 h1:fou+2+WFTib47nS+nz/ozhEBnvU96bKHy6LjRsY4E28= github.com/Azure/azure-sdk-for-go/sdk/azcore v1.21.0/go.mod h1:t76Ruy8AHvUAC8GfMWJMa0ElSbuIcO03NLpynfbgsPA= github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.13.1 h1:Hk5QBxZQC1jb2Fwj6mpzme37xbCDdNTxU7O9eb5+LB4= @@ -145,6 +147,10 @@ github.com/containerd/errdefs/pkg v0.3.0 h1:9IKJ06FvyNlexW690DXuQNx2KA2cUJXx151X github.com/containerd/errdefs/pkg v0.3.0/go.mod h1:NJw6s9HwNuRhnjJhM7pylWwMyAkmCQvQ4GpJHEqRLVk= github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I= github.com/containerd/log v0.1.0/go.mod h1:VRRf09a7mHDIRezVKTRCrOq78v577GXq3bSa3EhrzVo= +github.com/containerd/platforms v0.2.1 h1:zvwtM3rz2YHPQsF2CHYM8+KtB5dvhISiXh5ZpSBQv6A= +github.com/containerd/platforms v0.2.1/go.mod h1:XHCb+2/hzowdiut9rkudds9bE5yJ7npe7dG/wG+uFPw= +github.com/cpuguy83/dockercfg v0.3.2 h1:DlJTyZGBDlXqUZ2Dk2Q3xHs/FtnooJJVaad2S9GKorA= +github.com/cpuguy83/dockercfg v0.3.2/go.mod h1:sugsbF4//dDlL/i+S+rtpIWp+5h0BHJHfjj5/jFyUJc= github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= github.com/cucumber/gherkin/go/v26 v26.2.0 h1:EgIjePLWiPeslwIWmNQ3XHcypPsWAHoMCz/YEBKP4GI= github.com/cucumber/gherkin/go/v26 v26.2.0/go.mod h1:t2GAPnB8maCT4lkHL99BDCVNzCh1d7dBhCLt150Nr/0= @@ -176,6 +182,8 @@ github.com/eapache/go-resiliency v1.7.0 h1:n3NRTnBn5N0Cbi/IeOHuQn9s2UwVUH7Ga0ZWc github.com/eapache/go-resiliency v1.7.0/go.mod h1:5yPzW0MIvSe0JDsv0v+DvcjEv2FyD6iZYSs1ZI+iQho= github.com/eapache/queue v1.1.0 h1:YOEu7KNc61ntiQlcEeUIoDTJ2o8mQznoNvUhiigpIqc= github.com/eapache/queue v1.1.0/go.mod h1:6eCeP0CKFpHLu8blIFXhExK/dRa7WDZfr6jVFPTqq+I= +github.com/ebitengine/purego v0.10.0 h1:QIw4xfpWT6GWTzaW5XEKy3HXoqrJGx1ijYHzTF0/ISU= +github.com/ebitengine/purego v0.10.0/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ= github.com/envoyproxy/go-control-plane v0.14.0 h1:hbG2kr4RuFj222B6+7T83thSPqLjwBIfQawTkC++2HA= github.com/envoyproxy/go-control-plane v0.14.0/go.mod h1:NcS5X47pLl/hfqxU70yPwL9ZMkUlwlKxtAohpi2wBEU= github.com/envoyproxy/go-control-plane/envoy v1.37.0 h1:u3riX6BoYRfF4Dr7dwSOroNfdSbEPe9Yyl09/B6wBrQ= @@ -202,6 +210,8 @@ github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI= github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY= github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag= github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE= +github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY= +github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0= github.com/go-test/deep v1.1.1 h1:0r/53hagsehfO4bzD2Pgr/+RgHqhmf+k1Bpse2cTu1U= github.com/go-test/deep v1.1.1/go.mod h1:5C2ZWiW0ErCdrYzpqxLbTX7MG14M9iiw8DgHncVwcsE= github.com/godbus/dbus/v5 v5.2.2 h1:TUR3TgtSVDmjiXOgAAyaZbYmIeP3DPkld3jgKGV8mXQ= @@ -215,6 +225,7 @@ github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps= github.com/golobby/cast v1.3.3 h1:s2Lawb9RMz7YyYf8IrfMQY4IFmA1R/lgfmj97Vc6fig= github.com/golobby/cast v1.3.3/go.mod h1:0oDO5IT84HTXcbLDf1YXuk0xtg/cRDrxhbpWKxwtJCY= +github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8= github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU= @@ -316,6 +327,10 @@ github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY= github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE= github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc= github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw= +github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 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v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U= github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 h1:o4JXh1EVt9k/+g42oCprj/FisM4qX9L3sZB3upGN2ZU= +github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55/go.mod h1:OmDBASR4679mdNQnz2pUhc2G8CO2JrUAVFDRBDP/hJE= github.com/prometheus/client_golang v1.23.2 h1:Je96obch5RDVy3FDMndoUsjAhG5Edi49h0RJWRi/o0o= github.com/prometheus/client_golang v1.23.2/go.mod h1:Tb1a6LWHB3/SPIzCoaDXI4I8UHKeFTEQ1YCr+0Gyqmg= github.com/prometheus/client_model v0.6.2 h1:oBsgwpGs7iVziMvrGhE53c/GrLUsZdHnqNwqPLxwZyk= @@ -401,9 +430,13 @@ github.com/ryanuber/go-glob v1.0.0 h1:iQh3xXAumdQ+4Ufa5b25cRpC5TYKlno6hsv6Cb3pkB github.com/ryanuber/go-glob v1.0.0/go.mod h1:807d1WSdnB0XRJzKNil9Om6lcp/3a0v4qIHxIXzX/Yc= github.com/santhosh-tekuri/jsonschema/v6 v6.0.2 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h1:l+DolpxNWYgruGQVV0xsfeya3CsC7m8iBzDnMpsbLuo= @@ -423,6 +456,14 @@ github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4= github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U= github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U= +github.com/testcontainers/testcontainers-go v0.42.0 h1:He3IhTzTZOygSXLJPMX7n44XtK+qhjat1nI9cneBbUY= +github.com/testcontainers/testcontainers-go v0.42.0/go.mod h1:vZjdY1YmUA1qEForxOIOazfsrdyORJAbhi0bp8plN30= +github.com/testcontainers/testcontainers-go/modules/postgres v0.42.0 h1:GCbb1ndrF7OTDiIvxXyItaDab4qkzTFJ48LKFdM7EIo= +github.com/testcontainers/testcontainers-go/modules/postgres v0.42.0/go.mod h1:IRPBaI8jXdrNfD0e4Zm7Fbcgaz5shKxOQv4axiL09xs= +github.com/tklauser/go-sysconf v0.3.16 h1:frioLaCQSsF5Cy1jgRBrzr6t502KIIwQ0MArYICU0nA= +github.com/tklauser/go-sysconf v0.3.16/go.mod h1:/qNL9xxDhc7tx3HSRsLWNnuzbVfh3e7gh/BmM179nYI= +github.com/tklauser/numcpus v0.11.0 h1:nSTwhKH5e1dMNsCdVBukSZrURJRoHbSEQjdEbY+9RXw= +github.com/tklauser/numcpus v0.11.0/go.mod h1:z+LwcLq54uWZTX0u/bGobaV34u6V7KNlTZejzM6/3MQ= github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw= github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc= github.com/xdg-go/pbkdf2 v1.0.0 h1:Su7DPu48wXMwC3bs7MCNG+z4FhcyEuz5dlvchbq0B0c= @@ -435,6 +476,8 @@ github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY= github.com/yuin/gopher-lua v1.1.1 h1:kYKnWBjvbNP4XLT3+bPEwAXJx262OhaHDWDVOPjL46M= github.com/yuin/gopher-lua v1.1.1/go.mod h1:GBR0iDaNXjAgGg9zfCvksxSRnQx76gclCIb7kdAd1Pw= +github.com/yusufpapurcu/wmi v1.2.4 h1:zFUKzehAFReQwLys1b/iSMl+JQGSCSjtVqQn9bBrPo0= +github.com/yusufpapurcu/wmi v1.2.4/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0= github.com/zalando/go-keyring v0.2.8 h1:6sD/Ucpl7jNq10rM2pgqTs0sZ9V3qMrqfIIy5YPccHs= github.com/zalando/go-keyring v0.2.8/go.mod h1:tsMo+VpRq5NGyKfxoBVjCuMrG47yj8cmakZDO5QGii0= github.com/zeebo/xxh3 v1.1.0 h1:s7DLGDK45Dyfg7++yxI0khrfwq9661w9EN78eP/UZVs= @@ -506,14 +549,17 @@ golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4= golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0= golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20201204225414-ed752295db88/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= @@ -543,6 +589,7 @@ golang.org/x/tools v0.43.0 h1:12BdW9CeB3Z+J/I/wj34VMl8X+fEXBxVR90JeMX5E7s= golang.org/x/tools v0.43.0/go.mod h1:uHkMso649BX2cZK6+RpuIPXS3ho2hZo4FVwfoy1vIk0= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= gonum.org/v1/gonum v0.17.0 h1:VbpOemQlsSMrYmn7T2OUvQ4dqxQXU+ouZFQsZOx50z4= gonum.org/v1/gonum v0.17.0/go.mod h1:El3tOrEuMpv2UdMrbNlKEh9vd86bmQ6vqIcDwxEOc1E= diff --git a/migrations/001_audit_log.down.sql b/migrations/001_audit_log.down.sql new file mode 100644 index 0000000..e36213d --- /dev/null +++ b/migrations/001_audit_log.down.sql @@ -0,0 +1,2 @@ +-- 001_audit_log.down.sql +DROP TABLE IF EXISTS audit_log; diff --git a/migrations/001_audit_log.sql b/migrations/001_audit_log.sql new file mode 100644 index 0000000..239d9d7 --- /dev/null +++ b/migrations/001_audit_log.sql @@ -0,0 +1,14 @@ +-- 001_audit_log.sql: append-only hash-chained event log +CREATE TABLE IF NOT EXISTS audit_log ( + id BIGSERIAL PRIMARY KEY, + sequence BIGINT NOT NULL, + ledger VARCHAR(64) NOT NULL, + event_type VARCHAR(100) NOT NULL, + payload JSONB NOT NULL, + payload_hash VARCHAR(128) NOT NULL, + prev_entry_hash VARCHAR(128) NOT NULL DEFAULT '', + entry_hash VARCHAR(128) NOT NULL, + created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(), + appended_by_actor VARCHAR(255), + metadata JSONB +); diff --git a/migrations/002_audit_ledgers.down.sql b/migrations/002_audit_ledgers.down.sql new file mode 100644 index 0000000..6137985 --- /dev/null +++ b/migrations/002_audit_ledgers.down.sql @@ -0,0 +1,2 @@ +-- 002_audit_ledgers.down.sql +DROP TABLE IF EXISTS audit_ledgers; diff --git a/migrations/002_audit_ledgers.sql b/migrations/002_audit_ledgers.sql new file mode 100644 index 0000000..fb2b0e3 --- /dev/null +++ b/migrations/002_audit_ledgers.sql @@ -0,0 +1,9 @@ +-- 002_audit_ledgers.sql: ledger state cursor (FOR UPDATE serialization target) +CREATE TABLE IF NOT EXISTS audit_ledgers ( + ledger VARCHAR(64) PRIMARY KEY, + last_sequence BIGINT NOT NULL DEFAULT 0, + last_entry_hash VARCHAR(128) NOT NULL DEFAULT '', + description TEXT, + anchor_provider_names TEXT[], + anchor_schedule VARCHAR(64) +); diff --git a/migrations/003_audit_anchors.down.sql b/migrations/003_audit_anchors.down.sql new file mode 100644 index 0000000..aa4d313 --- /dev/null +++ b/migrations/003_audit_anchors.down.sql @@ -0,0 +1,2 @@ +-- 003_audit_anchors.down.sql +DROP TABLE IF EXISTS audit_anchors; diff --git a/migrations/003_audit_anchors.sql b/migrations/003_audit_anchors.sql new file mode 100644 index 0000000..42909d6 --- /dev/null +++ b/migrations/003_audit_anchors.sql @@ -0,0 +1,15 @@ +-- 003_audit_anchors.sql: external anchor records per provider +CREATE TABLE IF NOT EXISTS audit_anchors ( + id BIGSERIAL PRIMARY KEY, + ledger VARCHAR(64) NOT NULL, + range_start BIGINT NOT NULL, + range_end BIGINT NOT NULL, + merkle_root VARCHAR(128) NOT NULL, + provider VARCHAR(50) NOT NULL, + external_id VARCHAR(512), + proof_data BYTEA, + confirmation VARCHAR(20) NOT NULL DEFAULT 'pending', + anchored_at TIMESTAMPTZ NOT NULL DEFAULT NOW(), + confirmed_at TIMESTAMPTZ, + finalized_at TIMESTAMPTZ +); diff --git a/migrations/004_indexes.down.sql b/migrations/004_indexes.down.sql new file mode 100644 index 0000000..5e4583e --- /dev/null +++ b/migrations/004_indexes.down.sql @@ -0,0 +1,5 @@ +-- 004_indexes.down.sql +DROP INDEX IF EXISTS idx_audit_anchors_pending; +DROP INDEX IF EXISTS idx_audit_anchors_ledger_range; +DROP INDEX IF EXISTS idx_audit_log_event_type_created; +DROP INDEX IF EXISTS idx_audit_log_ledger_seq; diff --git a/migrations/004_indexes.sql b/migrations/004_indexes.sql new file mode 100644 index 0000000..d0d14ce --- /dev/null +++ b/migrations/004_indexes.sql @@ -0,0 +1,14 @@ +-- 004_indexes.sql: performance and uniqueness indexes +CREATE UNIQUE INDEX IF NOT EXISTS idx_audit_log_ledger_seq + ON audit_log(ledger, sequence); + +CREATE INDEX IF NOT EXISTS idx_audit_log_event_type_created + ON audit_log(ledger, event_type, created_at); + +CREATE INDEX IF NOT EXISTS idx_audit_anchors_ledger_range + ON audit_anchors(ledger, range_start, range_end); + +-- Partial index for polling pending/confirmed anchors (skip finalized rows). +CREATE INDEX IF NOT EXISTS idx_audit_anchors_pending + ON audit_anchors(provider, confirmation) + WHERE confirmation != 'finalized'; From 837313ceb6fbff8c2e295af77a2212cab52feca4 Mon Sep 17 00:00:00 2001 From: Jon Langevin Date: Sun, 3 May 2026 13:38:20 -0400 Subject: [PATCH 8/9] fix(chain): address code-review feedback on append protocol - Add metadata []byte param to Append+AppendTx (fixes dead schema column; Task 47 can now pass metadata without a breaking change) - Fix all unchecked Scan calls in tests (false-positive risk on rollback test where zero-value matched expected value) - Add SET LOCAL lock_timeout='5s' before FOR UPDATE (surfaces stalled holders as errors rather than indefinite blocks) - Use DB-side NOW() for created_at (avoids multi-node clock skew) - Drop unused gID goroutine closure parameter; use range-over-int idiom Co-Authored-By: Claude Sonnet 4.6 --- chain/append.go | 24 +++++++++++++++-------- chain/append_test.go | 46 ++++++++++++++++++++++++++------------------ 2 files changed, 43 insertions(+), 27 deletions(-) diff --git a/chain/append.go b/chain/append.go index 5f1df49..da0cc34 100644 --- a/chain/append.go +++ b/chain/append.go @@ -4,7 +4,6 @@ import ( "context" "database/sql" "fmt" - "time" ) // Appender writes hash-chained audit entries to Postgres. @@ -21,13 +20,14 @@ func NewAppender(db *sql.DB) *Appender { } // Append opens its own transaction, appends one entry to ledger, and commits. +// metadata is stored as-is in audit_log.metadata (JSONB); pass nil if not needed. // Returns (sequence, entryHash, error). -func (a *Appender) Append(ctx context.Context, ledger, eventType string, payload []byte, actor string) (int64, string, error) { +func (a *Appender) Append(ctx context.Context, ledger, eventType string, payload, metadata []byte, actor string) (int64, string, error) { tx, err := a.db.BeginTx(ctx, nil) if err != nil { return 0, "", fmt.Errorf("chain.Append: begin tx: %w", err) } - seq, hash, err := a.AppendTx(ctx, tx, ledger, eventType, payload, actor) + seq, hash, err := a.AppendTx(ctx, tx, ledger, eventType, payload, metadata, actor) if err != nil { _ = tx.Rollback() return 0, "", err @@ -42,7 +42,14 @@ func (a *Appender) Append(ctx context.Context, ledger, eventType string, payload // The caller is responsible for commit/rollback. This is the primitive used // by BMW PR 11 Task 47 (step.bmw.audit_append_with_map) so that the audit // entry and the business record land in a single atomic transaction. -func (a *Appender) AppendTx(ctx context.Context, tx *sql.Tx, ledger, eventType string, payload []byte, actor string) (int64, string, error) { +// metadata is stored as-is in audit_log.metadata (JSONB); pass nil if not needed. +func (a *Appender) AppendTx(ctx context.Context, tx *sql.Tx, ledger, eventType string, payload, metadata []byte, actor string) (int64, string, error) { + // 0. Enforce a server-side lock timeout so a stalled holder surfaces as an + // error rather than blocking indefinitely. + if _, err := tx.ExecContext(ctx, `SET LOCAL lock_timeout = '5s'`); err != nil { + return 0, "", fmt.Errorf("chain.AppendTx: set lock_timeout: %w", err) + } + // 1. Lock the ledger row and read the current cursor. var lastSeq int64 var lastHash string @@ -70,14 +77,15 @@ func (a *Appender) AppendTx(ctx context.Context, tx *sql.Tx, ledger, eventType s entryHash := EntryHash(seq, ledger, eventType, payloadHash, lastHash) // 3. Insert the audit log row. - createdAt := time.Now().UTC() + // created_at uses DB-server NOW() to avoid application clock skew in + // multi-node deployments. _, err = tx.ExecContext(ctx, `INSERT INTO audit_log (sequence, ledger, event_type, payload, payload_hash, - prev_entry_hash, entry_hash, created_at, appended_by_actor) - VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)`, + prev_entry_hash, entry_hash, created_at, appended_by_actor, metadata) + VALUES ($1, $2, $3, $4, $5, $6, $7, NOW(), $8, $9)`, seq, ledger, eventType, payload, payloadHash, - lastHash, entryHash, createdAt, actor, + lastHash, entryHash, actor, metadata, ) if err != nil { return 0, "", fmt.Errorf("chain.AppendTx: insert audit_log: %w", err) diff --git a/chain/append_test.go b/chain/append_test.go index bb8d0e4..df531b4 100644 --- a/chain/append_test.go +++ b/chain/append_test.go @@ -149,7 +149,7 @@ func TestAppend_FirstEntry_SetsEmptyPrevHash(t *testing.T) { createLedger(t, db, "test-ledger") a := chain.NewAppender(db) - seq, hash, err := a.Append(ctx, "test-ledger", "event.x", []byte(`{"k":1}`), "actor") + seq, hash, err := a.Append(ctx, "test-ledger", "event.x", []byte(`{"k":1}`), nil, "actor") if err != nil { t.Fatal(err) } @@ -179,19 +179,21 @@ func TestAppend_SecondEntry_LinksPrevHash(t *testing.T) { createLedger(t, db, "test-ledger") a := chain.NewAppender(db) - _, h1, err := a.Append(ctx, "test-ledger", "event.x", []byte(`{"k":1}`), "") + _, h1, err := a.Append(ctx, "test-ledger", "event.x", []byte(`{"k":1}`), nil, "") if err != nil { t.Fatal(err) } - _, _, err = a.Append(ctx, "test-ledger", "event.x", []byte(`{"k":2}`), "") + _, _, err = a.Append(ctx, "test-ledger", "event.x", []byte(`{"k":2}`), nil, "") if err != nil { t.Fatal(err) } var prev string - db.QueryRowContext(ctx, + if err := db.QueryRowContext(ctx, "SELECT prev_entry_hash FROM audit_log WHERE ledger=$1 AND sequence=2", "test-ledger", - ).Scan(&prev) + ).Scan(&prev); err != nil { + t.Fatalf("query prev_entry_hash: %v", err) + } if prev != h1 { t.Errorf("expected prev_entry_hash=%s, got %s", h1, prev) } @@ -204,7 +206,7 @@ func TestAppend_EntryHashMatchesChainComputation(t *testing.T) { a := chain.NewAppender(db) payload := []byte(`{"amount_cents":2000,"item_id":"abc"}`) - seq, gotHash, err := a.Append(ctx, "test-ledger", "contribution.captured", payload, "stripe") + seq, gotHash, err := a.Append(ctx, "test-ledger", "contribution.captured", payload, nil, "stripe") if err != nil { t.Fatal(err) } @@ -225,7 +227,7 @@ func TestAppend_UnknownLedger_ReturnsError(t *testing.T) { db := setupTestDB(t) a := chain.NewAppender(db) - _, _, err := a.Append(ctx, "no-such-ledger", "event.x", []byte(`{}`), "") + _, _, err := a.Append(ctx, "no-such-ledger", "event.x", []byte(`{}`), nil, "") if err == nil { t.Error("expected error for unknown ledger") } @@ -244,7 +246,7 @@ func TestAppendTx_ParticipatesInCallerTransaction(t *testing.T) { if err != nil { t.Fatal(err) } - seq, _, err := a.AppendTx(ctx, tx, "test-ledger", "event.x", []byte(`{}`), "actor") + seq, _, err := a.AppendTx(ctx, tx, "test-ledger", "event.x", []byte(`{}`), nil, "actor") if err != nil { _ = tx.Rollback() t.Fatal(err) @@ -259,19 +261,23 @@ func TestAppendTx_ParticipatesInCallerTransaction(t *testing.T) { // After rollback, no row must exist for that sequence. var count int - db.QueryRowContext(ctx, + if err := db.QueryRowContext(ctx, "SELECT count(*) FROM audit_log WHERE ledger=$1 AND sequence=$2", "test-ledger", seq, - ).Scan(&count) + ).Scan(&count); err != nil { + t.Fatalf("query audit_log count: %v", err) + } if count != 0 { t.Errorf("rolled-back entry still present: count=%d", count) } // Ledger cursor must also be rolled back (still 0). var lastSeq int64 - db.QueryRowContext(ctx, + if err := db.QueryRowContext(ctx, "SELECT last_sequence FROM audit_ledgers WHERE ledger=$1", "test-ledger", - ).Scan(&lastSeq) + ).Scan(&lastSeq); err != nil { + t.Fatalf("query audit_ledgers last_sequence: %v", err) + } if lastSeq != 0 { t.Errorf("ledger last_sequence after rollback = %d, want 0", lastSeq) } @@ -287,7 +293,7 @@ func TestAppendTx_CommitPersistsEntry(t *testing.T) { if err != nil { t.Fatal(err) } - seq, hash, err := a.AppendTx(ctx, tx, "test-ledger", "event.x", []byte(`{"v":1}`), "") + seq, hash, err := a.AppendTx(ctx, tx, "test-ledger", "event.x", []byte(`{"v":1}`), nil, "") if err != nil { _ = tx.Rollback() t.Fatal(err) @@ -297,10 +303,12 @@ func TestAppendTx_CommitPersistsEntry(t *testing.T) { } var storedHash string - db.QueryRowContext(ctx, + if err := db.QueryRowContext(ctx, "SELECT entry_hash FROM audit_log WHERE ledger=$1 AND sequence=$2", "test-ledger", seq, - ).Scan(&storedHash) + ).Scan(&storedHash); err != nil { + t.Fatalf("query entry_hash: %v", err) + } if storedHash != hash { t.Errorf("stored hash %s != returned hash %s", storedHash, hash) } @@ -330,12 +338,12 @@ func TestAppend_ConcurrentAppends_MonotonicSequence(t *testing.T) { ) wg.Add(goroutines) - for g := 0; g < goroutines; g++ { - go func(gID int) { + for range goroutines { + go func() { defer wg.Done() for i := 0; i < entriesEach; i++ { seq, _, err := a.Append(ctx, "concurrent-ledger", "stress.event", - []byte(`{"g":1}`), "") + []byte(`{"g":1}`), nil, "") mu.Lock() if err != nil { errs = append(errs, err) @@ -344,7 +352,7 @@ func TestAppend_ConcurrentAppends_MonotonicSequence(t *testing.T) { } mu.Unlock() } - }(g) + }() } wg.Wait() From 8b91995d1edfb5cae58064bd63a512a2762a4f5a Mon Sep 17 00:00:00 2001 From: Jon Langevin Date: Sun, 3 May 2026 14:00:50 -0400 Subject: [PATCH 9/9] fix(plugin.json): contracts field as empty array (filename strings fail wfctl strict-contracts validator) The wfctl plugin validate --strict-contracts CI check requires contracts array elements to be objects (map[string]interface{}), not filename strings. Other GoCodeAlone plugins use null or [] for empty contracts; adopting [] to match template default. The plugin.contracts.json file remains in-tree for the future when contracts are formalized. Co-Authored-By: Claude Opus 4.7 (1M context) --- plugin.json | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/plugin.json b/plugin.json index 88446e9..e1bf5ae 100644 --- a/plugin.json +++ b/plugin.json @@ -34,9 +34,7 @@ "trigger.audit.entry_appended" ] }, - "contracts": [ - "plugin.contracts.json" - ], + "contracts": [], "downloads": [ { "os": "linux",