forked from hush/hush3
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4 changed files with 241 additions and 1 deletions
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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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#ifndef CC_MOFN_H |
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#define CC_MOFN_H |
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#include "CCinclude.h" |
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#define EVAL_MOFN 0xea |
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bool MofNValidate(struct CCcontract_info *cp,Eval* eval,const CTransaction &tx); |
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// CCcustom
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UniValue MofNInfo(); |
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#endif |
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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 "CCMofN.h" |
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/*
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*/ |
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// start of consensus code
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int64_t IsMofNvout(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 MofNExactAmounts(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 MofN from mempool"); |
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if ( (assetoshis= IsMofNvout(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= IsMofNvout(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 MofNValidate(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 ( MofNExactAmounts(cp,eval,tx,1,10000) == false ) |
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{ |
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fprintf(stderr,"mofnget 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,"mofnget validated\n"); |
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else fprintf(stderr,"mofnget 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 AddMofNInputs(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= IsMofNvout(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 MofNGet(uint64_t txfee) |
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{ |
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CMutableTransaction mtx,tmpmtx; CPubKey mypk,mofnpk; 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_MOFN); |
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if ( txfee == 0 ) |
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txfee = 10000; |
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mofnpk = GetUnspendable(cp,0); |
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mypk = pubkey2pk(Mypubkey()); |
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if ( (inputs= AddMofNInputs(cp,mtx,mofnpk,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_MOFN,CCchange,mofnpk)); |
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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_MOFN << (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 mofn inputs\n"); |
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return(""); |
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} |
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std::string MofNFund(uint64_t txfee,int64_t funds) |
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{ |
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CMutableTransaction mtx; CPubKey mypk,mofnpk; CScript opret; struct CCcontract_info *cp,C; |
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cp = CCinit(&C,EVAL_MOFN); |
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if ( txfee == 0 ) |
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txfee = 10000; |
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mypk = pubkey2pk(Mypubkey()); |
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mofnpk = 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_MOFN,funds,mofnpk)); |
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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 MofNInfo() |
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{ |
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UniValue result(UniValue::VOBJ); char numstr[64]; |
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CMutableTransaction mtx; CPubKey mofnpk; 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","MofN")); |
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cp = CCinit(&C,EVAL_MOFN); |
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mofnpk = GetUnspendable(cp,0); |
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funding = AddMofNInputs(cp,mtx,mofnpk,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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