From 2a99643fb06098cced1d002e9deb7dacdcc03c9a Mon Sep 17 00:00:00 2001
From: Erik Zhang <erik@neo.org>
Date: Sat, 12 Sep 2020 22:24:44 +0800
Subject: [PATCH] Allow calling script hash to pass CheckWitness (#1925)

---
 src/neo/SmartContract/ApplicationEngine.Runtime.cs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/neo/SmartContract/ApplicationEngine.Runtime.cs b/src/neo/SmartContract/ApplicationEngine.Runtime.cs
index 99903c35e5..935e4fb2fe 100644
--- a/src/neo/SmartContract/ApplicationEngine.Runtime.cs
+++ b/src/neo/SmartContract/ApplicationEngine.Runtime.cs
@@ -104,6 +104,8 @@ protected internal bool CheckWitness(byte[] hashOrPubkey)
 
         protected internal bool CheckWitnessInternal(UInt160 hash)
         {
+            if (hash.Equals(CallingScriptHash)) return true;
+
             if (ScriptContainer is Transaction tx)
             {
                 Signer[] signers;