Remove Oracle Request (#2795)

* Remove Oracle Request * Change logic * Use invocation Counter * Update src/Neo/SmartContract/Native/OracleContract.cs Co-authored-by: Erik Zhang <[email protected]> Co-authored-by: Erik Zhang <[email protected]>
neo-project · Aug 3, 2022 · e32ef6e · e32ef6e
1 parent 718fc9f
commit e32ef6e
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/Neo/SmartContract/Native/OracleContract.cs b/src/Neo/SmartContract/Native/OracleContract.cs
@@ -116,6 +116,8 @@ public long GetPrice(DataCache snapshot)
         [ContractMethod(RequiredCallFlags = CallFlags.States | CallFlags.AllowCall | CallFlags.AllowNotify)]
         private ContractTask Finish(ApplicationEngine engine)
         {
+            if (engine.InvocationStack.Count != 2) throw new InvalidOperationException();
+            if (engine.GetInvocationCounter() != 1) throw new InvalidOperationException();
             Transaction tx = (Transaction)engine.ScriptContainer;
             OracleResponse response = tx.GetAttribute<OracleResponse>();
             if (response == null) throw new ArgumentException("Oracle response was not found");