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");
}
OracleRequest request = GetRequest(engine.Snapshot, response.Id);
if (request == null)
{
throw new ArgumentException("Oracle request was not found");
}
engine.SendNotification(Hash, "OracleResponse", new VM.Types.Array(engine.ReferenceCounter)
{
response.Id, request.OriginalTxid.ToArray()
});
StackItem userData = BinarySerializer.Deserialize(request.UserData, engine.Limits, engine.ReferenceCounter);
return(engine.CallFromNativeContract(Hash, request.CallbackContract, request.CallbackMethod, request.Url, userData, (int)response.Code, response.Result));
}
private UInt256 GetOriginalTxid(ApplicationEngine engine)
{
Transaction tx = (Transaction)engine.ScriptContainer;
OracleResponse response = tx.GetAttribute <OracleResponse>();
if (response is null)
{
return(tx.Hash);
}
OracleRequest request = GetRequest(engine.Snapshot, response.Id);
return(request.OriginalTxid);
}
private void Finish(ApplicationEngine engine)
{
Transaction tx = (Transaction)engine.ScriptContainer;
OracleResponse response = tx.GetAttribute <OracleResponse>();
if (response == null)
{
throw new ArgumentException("Oracle response was not found");
}
OracleRequest request = GetRequest(engine.Snapshot, response.Id);
if (request == null)
{
throw new ArgumentException("Oracle request was not found");
}
engine.SendNotification(Hash, "OracleResponse", new VM.Types.Array {
response.Id, request.OriginalTxid.ToArray()
});
StackItem userData = BinarySerializer.Deserialize(request.UserData, engine.Limits.MaxStackSize, engine.Limits.MaxItemSize, engine.ReferenceCounter);
engine.CallFromNativeContract(Hash, request.CallbackContract, request.CallbackMethod, request.Url, userData, (int)response.Code, response.Result);
}