Check is token is active in deposit

src/bridge/token_bridge.cairo

@@ -315,6 +315,14 @@ pub mod TokenBridge {
                 .read()
                 .consume_message_from_appchain(appchain_bridge, payload.span());
         }
+
+        fn accept_deposit(self: @ContractState, token: ContractAddress, amount: u256) {
+            self.is_servicing_token(token);
+            let caller = get_caller_address();
+            let dispatcher = IERC20Dispatcher { contract_address: token };
+            assert(dispatcher.balance_of(caller) == amount, 'Not enough balance');
+            dispatcher.transfer_from(caller, get_contract_address(), amount);
+        }
     }
 
 
@@ -352,14 +360,6 @@ pub mod TokenBridge {
     }
 
 
-    fn accept_deposit(token: ContractAddress, amount: u256) {
-        let caller = get_caller_address();
-        let dispatcher = IERC20Dispatcher { contract_address: token };
-        assert(dispatcher.balance_of(caller) == amount, 'Not enough balance');
-        dispatcher.transfer_from(caller, get_contract_address(), amount);
-    }
-
-
     #[abi(embed_v0)]
     impl TokenBrdigeAdminImpl of ITokenBridgeAdmin<ContractState> {
         fn set_appchain_token_bridge(ref self: ContractState, appchain_bridge: ContractAddress) {
@@ -478,7 +478,7 @@ pub mod TokenBridge {
             appchain_recipient: ContractAddress
         ) {
             let no_message: Span<felt252> = array![].span();
-            accept_deposit(token, amount);
+            self.accept_deposit(token, amount);
             let nonce = self
                 .send_deposit_message(
                     token,
@@ -512,7 +512,7 @@ pub mod TokenBridge {
             appchain_recipient: ContractAddress,
             message: Span<felt252>
         ) {
-            accept_deposit(token, amount);
+            self.accept_deposit(token, amount);
             let nonce = self
                 .send_deposit_message(
                     token,

src/constants.cairo

@@ -1,3 +1,5 @@
+// These constants have been take from this [Starkgate Bridge contract constants](https://github.com/starknet-io/starkgate-contracts/blob/cairo-1/src/solidity/StarkgateConstants.sol#L4)
+
 // Starknet L1 handler selectors.
 pub const HANDLE_TOKEN_DEPOSIT_SELECTOR: felt252 =
     774397379524139446221206168840917193112228400237242521560346153613428128537;