Rest of second wave CC contract stubs
This commit is contained in:
jl777
210
src/cc/oracles.cpp
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210
src/cc/oracles.cpp
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/******************************************************************************
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* Copyright © 2014-2018 The SuperNET Developers. *
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* *
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* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
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* the top-level directory of this distribution for the individual copyright *
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* holder information and the developer policies on copyright and licensing. *
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* *
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* Unless otherwise agreed in a custom licensing agreement, no part of the *
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* SuperNET software, including this file may be copied, modified, propagated *
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* or distributed except according to the terms contained in the LICENSE file *
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* *
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* Removal or modification of this copyright notice is prohibited. *
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* *
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******************************************************************************/
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#include "CCOracles.h"
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/*
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*/
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// start of consensus code
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int64_t IsOraclesvout(struct CCcontract_info *cp,const CTransaction& tx,int32_t v)
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{
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char destaddr[64];
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if ( tx.vout[v].scriptPubKey.IsPayToCryptoCondition() != 0 )
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{
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if ( Getscriptaddress(destaddr,tx.vout[v].scriptPubKey) > 0 && strcmp(destaddr,cp->unspendableCCaddr) == 0 )
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return(tx.vout[v].nValue);
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}
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return(0);
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}
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bool OraclesExactAmounts(struct CCcontract_info *cp,Eval* eval,const CTransaction &tx,int32_t minage,uint64_t txfee)
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{
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static uint256 zerohash;
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CTransaction vinTx; uint256 hashBlock,activehash; int32_t i,numvins,numvouts; int64_t inputs=0,outputs=0,assetoshis;
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numvins = tx.vin.size();
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numvouts = tx.vout.size();
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for (i=0; i<numvins; i++)
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{
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//fprintf(stderr,"vini.%d\n",i);
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if ( (*cp->ismyvin)(tx.vin[i].scriptSig) != 0 )
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{
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//fprintf(stderr,"vini.%d check mempool\n",i);
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if ( eval->GetTxUnconfirmed(tx.vin[i].prevout.hash,vinTx,hashBlock) == 0 )
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return eval->Invalid("cant find vinTx");
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else
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{
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//fprintf(stderr,"vini.%d check hash and vout\n",i);
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if ( hashBlock == zerohash )
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return eval->Invalid("cant Oracles from mempool");
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if ( (assetoshis= IsOraclesvout(cp,vinTx,tx.vin[i].prevout.n)) != 0 )
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inputs += assetoshis;
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}
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}
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}
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for (i=0; i<numvouts; i++)
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{
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//fprintf(stderr,"i.%d of numvouts.%d\n",i,numvouts);
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if ( (assetoshis= IsOraclesvout(cp,tx,i)) != 0 )
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outputs += assetoshis;
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}
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if ( inputs != outputs+txfee )
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{
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fprintf(stderr,"inputs %llu vs outputs %llu\n",(long long)inputs,(long long)outputs);
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return eval->Invalid("mismatched inputs != outputs + txfee");
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}
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else return(true);
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}
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bool OraclesValidate(struct CCcontract_info *cp,Eval* eval,const CTransaction &tx)
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{
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int32_t numvins,numvouts,preventCCvins,preventCCvouts,i,numblocks; bool retval; uint256 txid; uint8_t hash[32]; char str[65],destaddr[64];
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return(false);
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std::vector<std::pair<CAddressIndexKey, CAmount> > txids;
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numvins = tx.vin.size();
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numvouts = tx.vout.size();
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preventCCvins = preventCCvouts = -1;
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if ( numvouts < 1 )
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return eval->Invalid("no vouts");
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else
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{
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for (i=0; i<numvins; i++)
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{
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if ( IsCCInput(tx.vin[0].scriptSig) == 0 )
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{
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return eval->Invalid("illegal normal vini");
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}
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}
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//fprintf(stderr,"check amounts\n");
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if ( OraclesExactAmounts(cp,eval,tx,1,10000) == false )
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{
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fprintf(stderr,"Oraclesget invalid amount\n");
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return false;
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}
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else
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{
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txid = tx.GetHash();
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memcpy(hash,&txid,sizeof(hash));
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retval = PreventCC(eval,tx,preventCCvins,numvins,preventCCvouts,numvouts);
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if ( retval != 0 )
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fprintf(stderr,"Oraclesget validated\n");
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else fprintf(stderr,"Oraclesget invalid\n");
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return(retval);
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}
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}
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}
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// end of consensus code
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// helper functions for rpc calls in rpcwallet.cpp
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int64_t AddOraclesInputs(struct CCcontract_info *cp,CMutableTransaction &mtx,CPubKey pk,int64_t total,int32_t maxinputs)
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{
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char coinaddr[64]; int64_t nValue,price,totalinputs = 0; uint256 txid,hashBlock; std::vector<uint8_t> origpubkey; CTransaction vintx; int32_t vout,n = 0;
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std::vector<std::pair<CAddressUnspentKey, CAddressUnspentValue> > unspentOutputs;
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GetCCaddress(cp,coinaddr,pk);
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SetCCunspents(unspentOutputs,coinaddr);
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for (std::vector<std::pair<CAddressUnspentKey, CAddressUnspentValue> >::const_iterator it=unspentOutputs.begin(); it!=unspentOutputs.end(); it++)
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{
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txid = it->first.txhash;
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vout = (int32_t)it->first.index;
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// no need to prevent dup
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if ( GetTransaction(txid,vintx,hashBlock,false) != 0 )
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{
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if ( (nValue= IsOraclesvout(cp,vintx,vout)) > 1000000 && myIsutxo_spentinmempool(txid,vout) == 0 )
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{
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if ( total != 0 && maxinputs != 0 )
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mtx.vin.push_back(CTxIn(txid,vout,CScript()));
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nValue = it->second.satoshis;
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totalinputs += nValue;
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n++;
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if ( (total > 0 && totalinputs >= total) || (maxinputs > 0 && n >= maxinputs) )
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break;
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}
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}
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}
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return(totalinputs);
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}
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std::string OraclesGet(uint64_t txfee,int64_t nValue)
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{
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CMutableTransaction mtx,tmpmtx; CPubKey mypk,Oraclespk; int64_t inputs,CCchange=0; struct CCcontract_info *cp,C; std::string rawhex; uint32_t j; int32_t i,len; uint8_t buf[32768]; bits256 hash;
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cp = CCinit(&C,EVAL_ORACLES);
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if ( txfee == 0 )
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txfee = 10000;
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Oraclespk = GetUnspendable(cp,0);
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mypk = pubkey2pk(Mypubkey());
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if ( (inputs= AddOraclesInputs(cp,mtx,Oraclespk,nValue+txfee,60)) > 0 )
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{
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if ( inputs > nValue )
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CCchange = (inputs - nValue - txfee);
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if ( CCchange != 0 )
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mtx.vout.push_back(MakeCC1vout(EVAL_ORACLES,CCchange,Oraclespk));
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mtx.vout.push_back(CTxOut(nValue,CScript() << ParseHex(HexStr(mypk)) << OP_CHECKSIG));
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fprintf(stderr,"start at %u\n",(uint32_t)time(NULL));
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j = rand() & 0xfffffff;
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for (i=0; i<1000000; i++,j++)
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{
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tmpmtx = mtx;
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rawhex = FinalizeCCTx(-1LL,cp,tmpmtx,mypk,txfee,CScript() << OP_RETURN << E_MARSHAL(ss << (uint8_t)EVAL_ORACLES << (uint8_t)'G' << j));
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if ( (len= (int32_t)rawhex.size()) > 0 && len < 65536 )
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{
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len >>= 1;
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decode_hex(buf,len,(char *)rawhex.c_str());
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hash = bits256_doublesha256(0,buf,len);
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if ( (hash.bytes[0] & 0xff) == 0 && (hash.bytes[31] & 0xff) == 0 )
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{
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fprintf(stderr,"found valid txid after %d iterations %u\n",i,(uint32_t)time(NULL));
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return(rawhex);
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}
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//fprintf(stderr,"%02x%02x ",hash.bytes[0],hash.bytes[31]);
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}
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}
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fprintf(stderr,"couldnt generate valid txid %u\n",(uint32_t)time(NULL));
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return("");
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} else fprintf(stderr,"cant find Oracles inputs\n");
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return("");
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}
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std::string OraclesFund(uint64_t txfee,int64_t funds)
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{
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CMutableTransaction mtx; CPubKey mypk,Oraclespk; CScript opret; struct CCcontract_info *cp,C;
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cp = CCinit(&C,EVAL_ORACLES);
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if ( txfee == 0 )
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txfee = 10000;
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mypk = pubkey2pk(Mypubkey());
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Oraclespk = GetUnspendable(cp,0);
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if ( AddNormalinputs(mtx,mypk,funds+txfee,64) > 0 )
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{
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mtx.vout.push_back(MakeCC1vout(EVAL_ORACLES,funds,Oraclespk));
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return(FinalizeCCTx(0,cp,mtx,mypk,txfee,opret));
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}
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return("");
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}
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UniValue OraclesInfo()
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{
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UniValue result(UniValue::VOBJ); char numstr[64];
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CMutableTransaction mtx; CPubKey Oraclespk; struct CCcontract_info *cp,C; int64_t funding;
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result.push_back(Pair("result","success"));
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result.push_back(Pair("name","Oracles"));
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cp = CCinit(&C,EVAL_ORACLES);
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Oraclespk = GetUnspendable(cp,0);
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funding = AddOraclesInputs(cp,mtx,Oraclespk,0,0);
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sprintf(numstr,"%.8f",(double)funding/COIN);
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result.push_back(Pair("funding",numstr));
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return(result);
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}
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