From 719cb3b0cf83a91e99d9f95d249a83b639b52b88 Mon Sep 17 00:00:00 2001
From: dubemoyibe-star <dubemoyibe@gmail.com>
Date: Fri, 29 May 2026 00:30:35 +0100
Subject: [PATCH 1/2] "[Contract] Implement Token Clawback Feature Fixes #62"

---
 contracts/token/src/lib.rs  | 21 ++++++----
 contracts/token/src/test.rs | 81 +++++++++++++++++++++++++++++++++++++
 sdk/src/client.ts           |  5 ++-
 3 files changed, 97 insertions(+), 10 deletions(-)

diff --git a/contracts/token/src/lib.rs b/contracts/token/src/lib.rs
index 5faad34..cdcc68a 100644
--- a/contracts/token/src/lib.rs
+++ b/contracts/token/src/lib.rs
@@ -384,21 +384,26 @@ impl BcForgeToken {
             .set(&DataKey::ClawbackAdmin, &clawback_admin);
     }
 
-    pub fn clawback(env: Env, from: Address, to: Address, amount: i128) -> Result<(), TokenError> {
+    pub fn clawback(env: Env, caller: Address, from: Address, to: Address, amount: i128) -> Result<(), TokenError> {
         Self::ensure_initialized(&env)?;
-        let clawback_admin: Address = env
-            .storage()
-            .instance()
-            .get(&DataKey::ClawbackAdmin)
-            .expect("clawback admin not set");
-        clawback_admin.require_auth();
+        caller.require_auth();
+
+        let current_admin = Self::read_admin(&env)?;
+        let clawback_admin: Option<Address> = env.storage().instance().get(&DataKey::ClawbackAdmin);
+
+        let is_authorized = caller == current_admin
+            || clawback_admin.map_or(false, |ca| ca == caller);
+
+        if !is_authorized {
+            panic!("unauthorized");
+        }
 
         if amount <= 0 {
             return Err(TokenError::InvalidAmount);
         }
 
         let _ = Self::move_balance(&env, &from, &to, amount)?;
-        events::emit_clawback(&env, &clawback_admin, &from, &to, amount);
+        events::emit_clawback(&env, &caller, &from, &to, amount);
         Ok(())
     }
 
diff --git a/contracts/token/src/test.rs b/contracts/token/src/test.rs
index 1de36a0..5afa6ac 100644
--- a/contracts/token/src/test.rs
+++ b/contracts/token/src/test.rs
@@ -910,3 +910,84 @@ fn test_batch_transfer_while_paused_returns_error() {
         )))
     );
 }
+
+#[test]
+fn test_clawback_by_admin() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (client, admin) = setup(&env);
+    let victim = Address::generate(&env);
+    let treasury = Address::generate(&env);
+
+    client.mint(&victim, &500);
+    client.clawback(&admin, &victim, &treasury, &200);
+
+    assert_eq!(client.balance(&victim), 300);
+    assert_eq!(client.balance(&treasury), 200);
+}
+
+#[test]
+fn test_clawback_by_clawback_admin() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (client, admin) = setup(&env);
+    let clawback_admin = Address::generate(&env);
+    let victim = Address::generate(&env);
+    let treasury = Address::generate(&env);
+
+    client.set_clawback_admin(&clawback_admin);
+    client.mint(&victim, &500);
+    client.clawback(&clawback_admin, &victim, &treasury, &300);
+
+    assert_eq!(client.balance(&victim), 200);
+    assert_eq!(client.balance(&treasury), 300);
+    let _ = admin;
+}
+
+#[test]
+#[should_panic(expected = "unauthorized")]
+fn test_clawback_unauthorized_panics() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (client, _admin) = setup(&env);
+    let rando = Address::generate(&env);
+    let victim = Address::generate(&env);
+    let treasury = Address::generate(&env);
+
+    client.mint(&victim, &100);
+    client.clawback(&rando, &victim, &treasury, &50);
+}
+
+#[test]
+fn test_clawback_invalid_amount_returns_error() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (client, admin) = setup(&env);
+    let victim = Address::generate(&env);
+    let treasury = Address::generate(&env);
+
+    client.mint(&victim, &100);
+    assert_eq!(
+        client.try_clawback(&admin, &victim, &treasury, &0),
+        Err(Ok(soroban_sdk::Error::from_contract_error(
+            TokenError::InvalidAmount as u32
+        )))
+    );
+}
+
+#[test]
+fn test_clawback_insufficient_balance_returns_error() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (client, admin) = setup(&env);
+    let victim = Address::generate(&env);
+    let treasury = Address::generate(&env);
+
+    client.mint(&victim, &50);
+    assert_eq!(
+        client.try_clawback(&admin, &victim, &treasury, &100),
+        Err(Ok(soroban_sdk::Error::from_contract_error(
+            TokenError::InsufficientBalance as u32
+        )))
+    );
+}
diff --git a/sdk/src/client.ts b/sdk/src/client.ts
index 5afb91c..211260f 100644
--- a/sdk/src/client.ts
+++ b/sdk/src/client.ts
@@ -582,9 +582,10 @@ export class bcForgeClient {
   }
 
   /**
-   * Execute a clawback operation.
+   * Execute a clawback operation. Caller must be the main admin or the designated clawback admin.
    */
   async clawback(
+    caller: string,
     from: string,
     to: string,
     amount: bigint,
@@ -592,7 +593,7 @@ export class bcForgeClient {
   ): Promise<TransactionResult> {
     return this.invokeContract(
       'clawback',
-      [addressToScVal(from), addressToScVal(to), i128ToScVal(amount)],
+      [addressToScVal(caller), addressToScVal(from), addressToScVal(to), i128ToScVal(amount)],
       source,
     );
   }

From b7bced16d168b5b07df4fb78a7583de1104998ad Mon Sep 17 00:00:00 2001
From: Ajibose <ajiboseibrahim12@gmail.com>
Date: Wed, 24 Jun 2026 23:02:23 +0300
Subject: [PATCH 2/2] test(token): add clawback edge-case coverage (#319)

---
 Cargo.lock                  | 2672 +++++++++++++++++++++++++++++++++++
 contracts/token/src/test.rs |  114 ++
 2 files changed, 2786 insertions(+)
 create mode 100644 Cargo.lock

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new file mode 100644
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diff --git a/contracts/token/src/test.rs b/contracts/token/src/test.rs
index 75a9d75..f2534b2 100644
--- a/contracts/token/src/test.rs
+++ b/contracts/token/src/test.rs
@@ -208,3 +208,117 @@ fn test_clawback_insufficient_balance_returns_error() {
         )))
     );
 }
+
+#[test]
+fn clawback_negative_amount_returns_error() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (client, admin) = setup(&env);
+    let victim = Address::generate(&env);
+    let treasury = Address::generate(&env);
+
+    client.mint(&victim, &100);
+    assert_eq!(
+        client.try_clawback(&admin, &victim, &treasury, &-10),
+        Err(Ok(soroban_sdk::Error::from_contract_error(
+            TokenError::InvalidAmount as u32
+        )))
+    );
+}
+
+#[test]
+fn clawback_full_drain_transfers_all() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (client, admin) = setup(&env);
+    let victim = Address::generate(&env);
+    let treasury = Address::generate(&env);
+
+    client.mint(&victim, &1000);
+    client.clawback(&admin, &victim, &treasury, &1000);
+
+    assert_eq!(client.balance(&victim), 0);
+    assert_eq!(client.balance(&treasury), 1000);
+}
+
+#[test]
+fn clawback_self_is_noop() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (client, admin) = setup(&env);
+    let user = Address::generate(&env);
+
+    client.mint(&user, &500);
+    // from == to: balance must be unchanged
+    client.clawback(&admin, &user, &user, &200);
+
+    assert_eq!(client.balance(&user), 500);
+}
+
+#[test]
+fn clawback_preserves_total_supply() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (client, admin) = setup(&env);
+    let victim = Address::generate(&env);
+    let treasury = Address::generate(&env);
+
+    client.mint(&victim, &700);
+    let before = client.supply();
+    client.clawback(&admin, &victim, &treasury, &200);
+    let after = client.supply();
+
+    // clawback moves balance, it does not burn -> supply unchanged
+    assert_eq!(before, after);
+}
+
+#[test]
+fn clawback_sequential_until_drained() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (client, admin) = setup(&env);
+    let victim = Address::generate(&env);
+    let treasury = Address::generate(&env);
+
+    client.mint(&victim, &1000);
+    client.clawback(&admin, &victim, &treasury, &400);
+    assert_eq!(client.balance(&victim), 600);
+    client.clawback(&admin, &victim, &treasury, &600);
+    assert_eq!(client.balance(&victim), 0);
+    assert_eq!(client.balance(&treasury), 1000);
+}
+
+#[test]
+fn clawback_admin_still_authorized_after_setting_clawback_admin() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (client, admin) = setup(&env);
+    let clawback_admin = Address::generate(&env);
+    let victim = Address::generate(&env);
+    let treasury = Address::generate(&env);
+
+    // setting a separate clawback admin must not revoke the original admin
+    client.set_clawback_admin(&clawback_admin);
+    client.mint(&victim, &300);
+    client.clawback(&admin, &victim, &treasury, &100);
+
+    assert_eq!(client.balance(&victim), 200);
+    assert_eq!(client.balance(&treasury), 100);
+}
+
+#[test]
+#[should_panic(expected = "unauthorized")]
+fn clawback_third_party_unauthorized_even_with_clawback_admin_set() {
+    let env = Env::default();
+    env.mock_all_auths();
+    let (client, _admin) = setup(&env);
+    let clawback_admin = Address::generate(&env);
+    let rando = Address::generate(&env);
+    let victim = Address::generate(&env);
+    let treasury = Address::generate(&env);
+
+    client.set_clawback_admin(&clawback_admin);
+    client.mint(&victim, &100);
+    // rando is neither admin nor clawback_admin -> must panic
+    client.clawback(&rando, &victim, &treasury, &50);
+}