customcc

src/cc/customcc.cpp

@@ -0,0 +1,80 @@
+/*
+ simple stub custom cc
+ */
+
+CScript custom_opret(uint8_t funcid,CPubKey pk)
+{
+    CScript opret; uint8_t evalcode = EVAL_CUSTOM;
+    opret << OP_RETURN << E_MARSHAL(ss << evalcode << funcid << pk);
+    return(opret);
+}
+
+uint8_t custom_opretdecode(CPubKey &pk,CScript scriptPubKey)
+{
+    std::vector<uint8_t> vopret; uint8_t e,f;
+    GetOpReturnData(scriptPubKey,vopret);
+    if ( vopret.size() > 2 && E_UNMARSHAL(vopret,ss >> e; ss >> f; ss >> pk) != 0 && e == EVAL_CUSTOM )
+    {
+        return(f);
+    }
+    return(0);
+}
+
+UniValue custom_rawtxresult(UniValue &result,std::string rawtx,int32_t broadcastflag)
+{
+    CTransaction tx;
+    if ( rawtx.size() > 0 )
+    {
+        result.push_back(Pair("hex",rawtx));
+        if ( DecodeHexTx(tx,rawtx) != 0 )
+        {
+            if ( broadcastflag != 0 && myAddtomempool(tx) != 0 )
+                RelayTransaction(tx);
+            result.push_back(Pair("txid",tx.GetHash().ToString()));
+            result.push_back(Pair("result","success"));
+        } else result.push_back(Pair("error","decode hex"));
+    } else result.push_back(Pair("error","couldnt finalize CCtx"));
+    return(result);
+}
+
+UniValue custom_func0(uint64_t txfee,struct CCcontract_info *cp,cJSON *params)
+{
+    UniValue result(UniValue::VOBJ);
+    result.push_back(Pair("result","success"));
+    result.push_back(Pair("message","just an example of an information returning rpc"));
+    return(result);
+}
+
+// send yourself 1 coin to your CC address using normal utxo from your -pubkey
+
+UniValue custom_func1(uint64_t txfee,struct CCcontract_info *cp,cJSON *params)
+{
+    CMutableTransaction mtx = CreateNewContextualCMutableTransaction(Params().GetConsensus(), komodo_nextheight());
+    UniValue result(UniValue::VOBJ); CPubKey mypk; int64_t amount = COIN; int32_t broadcastflag=0;
+    if ( txfee == 0 )
+        txfee = CUSTOM_TXFEE;
+    mypk = pubkey2pk(Mypubkey());
+    if ( AddNormalinputs(mtx,mypk,COIN+txfee,64) >= COIN+txfee ) // add utxo to mtx
+    {
+        mtx.vout.push_back(MakeCC1vout(cp->evalcode,amount,mypk)); // make vout0
+        // add opreturn, change is automatically added and tx is properly signed
+        rawtx = FinalizeCCTx(0,cp,mtx,mypk,txfee,custom_opret('1',mypk));
+        return(custom_rawtxresult(result,rawtx,broadcastflag));
+    }
+    return(result);
+}
+
+bool custom_validate(struct CCcontract_info *cp,int32_t height,Eval *eval,const CTransaction tx)
+{
+    char expectedaddress[64]; CPubKey pk;
+    if ( tx.vout.size() != 2 ) // make sure the tx only has 2 outputs
+        return eval->Invalid("invalid number of vouts");
+    else if ( custom_opretdecode(pk,tx.vout[1].scriptPubKey) != '1' ) // verify has opreturn
+        return eval->Invalid("invalid opreturn");
+    GetCCaddress(cp,expectedaddress,pk)
+    if ( IsCClibvout(cp,tx,0,expectedaddress) == COIN ) // make sure amount and destination matches
+        return(true);
+    else return eval->Invalid("invalid vout0 amount");
+}
+
+