Reorganize CC assets code
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jl777
179
src/cc/CCtx.cpp
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179
src/cc/CCtx.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 "CCinclude.h"
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/*
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FinalizeCCTx is a very useful function that will properly sign both CC and normal inputs, adds normal change and the opreturn.
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This allows the contract transaction functions to create the appropriate vins and vouts and have FinalizeCCTx create a properly signed transaction.
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By using -addressindex=1, it allows tracking of all the CC addresses
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*/
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bool SignTx(CMutableTransaction &mtx,int32_t vini,uint64_t utxovalue,const CScript scriptPubKey)
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{
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#ifdef ENABLE_WALLET
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CTransaction txNewConst(mtx); SignatureData sigdata; const CKeyStore& keystore = *pwalletMain;
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auto consensusBranchId = CurrentEpochBranchId(chainActive.Height() + 1, Params().GetConsensus());
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if ( ProduceSignature(TransactionSignatureCreator(&keystore,&txNewConst,vini,utxovalue,SIGHASH_ALL),scriptPubKey,sigdata,consensusBranchId) != 0 )
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{
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UpdateTransaction(mtx,vini,sigdata);
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return(true);
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} else fprintf(stderr,"signing error for CreateAsset vini.%d %.8f\n",vini,(double)utxovalue/COIN);
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#else
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return(false);
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#endif
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}
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std::string FinalizeCCTx(uint8_t evalcode,CMutableTransaction &mtx,CPubKey mypk,uint64_t txfee,CScript opret)
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{
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CTransaction vintx; std::string hex; uint256 hashBlock; uint64_t vinimask=0,utxovalues[64],change,totaloutputs=0,totalinputs=0; int32_t i,utxovout,n,err = 0; char myaddr[64],destaddr[64],unspendable[64]; uint8_t *privkey,myprivkey[32],unspendablepriv[32],*msg32 = 0; CC *mycond=0,*othercond=0,*cond; CPubKey unspendablepk;
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n = mtx.vout.size();
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for (i=0; i<n; i++)
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{
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//if ( mtx.vout[i].scriptPubKey.IsPayToCryptoCondition() == 0 )
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totaloutputs += mtx.vout[i].nValue;
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}
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if ( (n= mtx.vin.size()) > 64 )
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{
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fprintf(stderr,"FinalizeAssetTx: %d is too many vins\n",n);
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return(0);
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}
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Myprivkey(myprivkey);
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unspendablepk = GetUnspendable(evalcode,unspendablepriv);
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GetCCaddress(evalcode,myaddr,mypk);
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mycond = MakeCC(evalcode,mypk);
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GetCCaddress(evalcode,unspendable,unspendablepk);
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othercond = MakeCC(evalcode,unspendablepk);
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//fprintf(stderr,"myCCaddr.(%s) %p vs unspendable.(%s) %p\n",myaddr,mycond,unspendable,othercond);
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memset(utxovalues,0,sizeof(utxovalues));
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for (i=0; i<n; i++)
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{
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if ( GetTransaction(mtx.vin[i].prevout.hash,vintx,hashBlock,false) != 0 )
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{
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utxovout = mtx.vin[i].prevout.n;
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utxovalues[i] = vintx.vout[utxovout].nValue;
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totalinputs += utxovalues[i];
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if ( vintx.vout[utxovout].scriptPubKey.IsPayToCryptoCondition() == 0 )
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{
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//fprintf(stderr,"vin.%d is normal %.8f\n",i,(double)utxovalues[i]/COIN);
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vinimask |= (1LL << i);
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}
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else
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{
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}
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} else fprintf(stderr,"FinalizeCCTx couldnt find %s\n",mtx.vin[i].prevout.hash.ToString().c_str());
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}
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if ( totalinputs >= totaloutputs+2*txfee )
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{
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change = totalinputs - (totaloutputs+txfee);
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mtx.vout.push_back(CTxOut(change,CScript() << ParseHex(HexStr(mypk)) << OP_CHECKSIG));
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}
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mtx.vout.push_back(CTxOut(0,opret));
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PrecomputedTransactionData txdata(mtx);
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n = mtx.vin.size();
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for (i=0; i<n; i++)
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{
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if ( GetTransaction(mtx.vin[i].prevout.hash,vintx,hashBlock,false) != 0 )
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{
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utxovout = mtx.vin[i].prevout.n;
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if ( vintx.vout[utxovout].scriptPubKey.IsPayToCryptoCondition() == 0 )
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{
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if ( SignTx(mtx,i,vintx.vout[utxovout].nValue,vintx.vout[utxovout].scriptPubKey) == 0 )
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fprintf(stderr,"signing error for vini.%d of %llx\n",i,(long long)vinimask);
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}
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else
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{
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Getscriptaddress(destaddr,vintx.vout[utxovout].scriptPubKey);
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//fprintf(stderr,"vin.%d is CC %.8f -> (%s)\n",i,(double)utxovalues[i]/COIN,destaddr);
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if ( strcmp(destaddr,myaddr) == 0 )
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{
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privkey = myprivkey;
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cond = mycond;
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//fprintf(stderr,"my CC addr.(%s)\n",myaddr);
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}
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else if ( strcmp(destaddr,unspendable) == 0 )
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{
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privkey = unspendablepriv;
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cond = othercond;
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//fprintf(stderr,"unspendable CC addr.(%s)\n",unspendable);
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}
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else
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{
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fprintf(stderr,"vini.%d has unknown CC address.(%s)\n",i,destaddr);
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continue;
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}
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uint256 sighash = SignatureHash(CCPubKey(cond), mtx, i, SIGHASH_ALL, 0, 0, &txdata);
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if ( cc_signTreeSecp256k1Msg32(cond,privkey,sighash.begin()) != 0 )
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mtx.vin[i].scriptSig = CCSig(cond);
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else fprintf(stderr,"vini.%d has CC signing error address.(%s)\n",i,destaddr);
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}
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} else fprintf(stderr,"FinalizeAssetTx couldnt find %s\n",mtx.vin[i].prevout.hash.ToString().c_str());
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}
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if ( mycond != 0 )
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cc_free(mycond);
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if ( othercond != 0 )
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cc_free(othercond);
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std::string strHex = EncodeHexTx(mtx);
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if ( strHex.size() > 0 )
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return(strHex);
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else return(0);
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}
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void SetCCunspents(std::vector<std::pair<CAddressUnspentKey, CAddressUnspentValue> > &unspentOutputs,char *coinaddr)
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{
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int32_t type=0,i,n; char *ptr; std::string addrstr; uint160 hashBytes; std::vector<std::pair<uint160, int> > addresses;
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n = (int32_t)strlen(coinaddr);
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addrstr.resize(n+1);
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ptr = (char *)addrstr.data();
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for (i=0; i<=n; i++)
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ptr[i] = coinaddr[i];
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CBitcoinAddress address(addrstr);
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if ( address.GetIndexKey(hashBytes, type) == 0 )
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return;
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addresses.push_back(std::make_pair(hashBytes,type));
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for (std::vector<std::pair<uint160, int> >::iterator it = addresses.begin(); it != addresses.end(); it++)
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{
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if ( GetAddressUnspent((*it).first, (*it).second, unspentOutputs) == 0 )
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return;
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}
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}
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uint64_t AddNormalinputs(CMutableTransaction &mtx,CPubKey mypk,uint64_t total,int32_t maxinputs)
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{
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int32_t n = 0; uint64_t nValue,totalinputs = 0; std::vector<COutput> vecOutputs;
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#ifdef ENABLE_WALLET
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const CKeyStore& keystore = *pwalletMain;
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assert(pwalletMain != NULL);
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LOCK2(cs_main, pwalletMain->cs_wallet);
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pwalletMain->AvailableCoins(vecOutputs, false, NULL, true);
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BOOST_FOREACH(const COutput& out, vecOutputs)
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{
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if ( out.fSpendable != 0 )
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{
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mtx.vin.push_back(CTxIn(out.tx->GetHash(),out.i,CScript()));
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nValue = out.tx->vout[out.i].nValue;
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totalinputs += nValue;
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n++;
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if ( totalinputs >= total || n >= maxinputs )
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break;
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}
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}
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if ( totalinputs >= total )
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return(totalinputs);
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#endif
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return(0);
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}
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