Decode CC opret RPC

src/rpc/misc.cpp

@@ -28,6 +28,7 @@
 #include "timedata.h"
 #include "txmempool.h"
 #include "util.h"
+#include "cc/eval.h"
 #ifdef ENABLE_WALLET
 #include "wallet/wallet.h"
 #include "wallet/walletdb.h"
@@ -1339,6 +1340,52 @@ UniValue txnotarizedconfirmed(const UniValue& params, bool fHelp)
     return result;
 }
 
+UniValue decodeccopret(const UniValue& params, bool fHelp)
+{
+    CTransaction tx; uint256 txid,hashBlock;
+    std::vector<uint8_t> vopret; uint8_t *script;
+    UniValue result(UniValue::VOBJ);
+
+    if (fHelp || params.size() < 1 || params.size() > 1)
+    {
+        string msg = "decodeccopret hex\n"
+            "\nReturns eval code and function id for CC OP RETURN data.\n"           
+
+            "\nArguments:\n"
+            "1. txid      (string, required) Transaction id.\n"          
+
+            "\nResult:\n"
+            "{\n"
+            "  eval_code,  (string) Eval code name.\n" 
+            "  function,   (char) Function id char.\n"           
+            "}\n"           
+        ;
+        throw runtime_error(msg);
+    }
+    txid = uint256S((char *)params[0].get_str().c_str());
+    {
+        LOCK(cs_main);
+            if (!GetTransaction(txid, tx, hashBlock, true))
+                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "No information available about transaction");
+    }
+    GetOpReturnData(tx.vout[tx.vout.size()-1].scriptPubKey,vopret);
+    script = (uint8_t *)vopret.data();
+    if ( vopret.size() > 1)
+    {        
+        char func[5];
+        sprintf(func,"%c",script[1]);
+        result.push_back(Pair("result", "success"));
+        result.push_back(Pair("eval_code", EvalToStr(script[0])));
+        result.push_back(Pair("function", func));
+    }
+    else
+    {
+        result.push_back(Pair("result", "error"));
+        result.push_back(Pair("error", "invalid or no CC opret data"));
+    }
+    return result;
+}
+
 static const CRPCCommand commands[] =
 { //  category              name                      actor (function)         okSafeMode
   //  --------------------- ------------------------  -----------------------  ----------

src/rpc/server.cpp

@@ -503,6 +503,7 @@ static const CRPCCommand vRPCCommands[] =
     { "util",               "validateaddress",        &validateaddress,        true  }, /* uses wallet if enabled */
     { "util",               "verifymessage",          &verifymessage,          true  },
     { "util",               "txnotarizedconfirmed",   &txnotarizedconfirmed,   true  },
+    { "util",               "decodeccopret",   &decodeccopret,   true  },
     { "util",               "estimatefee",            &estimatefee,            true  },
     { "util",               "estimatepriority",       &estimatepriority,       true  },
     { "util",               "z_validateaddress",      &z_validateaddress,      true  }, /* uses wallet if enabled */

src/rpc/server.h

@@ -356,6 +356,7 @@ extern UniValue walletlock(const UniValue& params, bool fHelp);
 extern UniValue encryptwallet(const UniValue& params, bool fHelp);
 extern UniValue validateaddress(const UniValue& params, bool fHelp);
 extern UniValue txnotarizedconfirmed(const UniValue& params, bool fHelp);
+extern UniValue decodeccopret(const UniValue& params, bool fHelp);
 extern UniValue getinfo(const UniValue& params, bool fHelp);
 extern UniValue setpubkey(const UniValue& params, bool fHelp);
 extern UniValue getwalletinfo(const UniValue& params, bool fHelp);