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Multisig withdraw fix

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This commit is contained in:
Mihailo Milenkovic
2018-10-26 13:00:16 +02:00
parent 029bd0dd5d
commit 2fd999a2f6
6 changed files with 162 additions and 74 deletions
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85
src/cc/gateways.cpp
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@@ -178,6 +178,18 @@ uint8_t DecodeGatewaysOpRet(const CScript &scriptPubKey,std::string &coin,uint25
return(0);
}
uint8_t DecodeGatewaysPartialOpRet(const CScript &scriptPubKey,int32_t &K, CPubKey &signerpk, std::string &coin,std::string &hex)
{
std::vector<uint8_t> vopret; uint8_t *script,e,f;
GetOpReturnData(scriptPubKey, vopret);
script = (uint8_t *)vopret.data();
if ( vopret.size() > 2 && E_UNMARSHAL(vopret,ss >> e; ss >> f; ss >> K; ss >> signerpk; ss >> coin; ss >> hex) != 0 )
{
return(f);
}
return(0);
}
uint8_t DecodeGatewaysBindOpRet(char *depositaddr,const CScript &scriptPubKey,std::string &coin,uint256 &tokenid,int64_t &totalsupply,uint256 &oracletxid,uint8_t &M,uint8_t &N,std::vector<CPubKey> &pubkeys,uint8_t &taddr,uint8_t &prefix,uint8_t &prefix2)
{
std::vector<uint8_t> vopret; uint8_t *script,e,f;
@@ -873,31 +885,60 @@ UniValue GatewaysPendingWithdraws(uint256 bindtxid,std::string refcoin)
return(result);
}
std::string GatewaysMultisig(uint64_t txfee,std::string refcoin,uint256 bindtxid,uint256 withdrawtxid,char *txidaddr)
std::string GatewaysMultisig(char *txidaddr)
{
UniValue result(UniValue::VOBJ); std::string coin,hex; char str[67],numstr[65],depositaddr[64],gatewaysassets[64]; uint8_t M,N; std::vector<CPubKey> pubkeys; uint8_t taddr,prefix,prefix2; uint256 tokenid,oracletxid,hashBlock; CTransaction tx; CPubKey Gatewayspk,mypk; struct CCcontract_info *cp,C; int32_t i,n,complete,partialtx; int64_t totalsupply;
cp = CCinit(&C,EVAL_GATEWAYS);
if ( txfee == 0 )
txfee = 10000;
complete = partialtx = 0;
mypk = pubkey2pk(Mypubkey());
Gatewayspk = GetUnspendable(cp,0);
_GetCCaddress(gatewaysassets,EVAL_GATEWAYS,Gatewayspk);
if ( GetTransaction(bindtxid,tx,hashBlock,false) != 0 )
std::string parthex,hex,refcoin; uint256 txid,hashBlock; CTransaction tx; int32_t i,maxK,K; CPubKey signerpk;
std::vector<std::pair<CAddressUnspentKey, CAddressUnspentValue> > unspentOutputs;
SetCCunspents(unspentOutputs,txidaddr);
if (unspentOutputs.size()==0) return ("");
maxK=0;
for (std::vector<std::pair<CAddressUnspentKey, CAddressUnspentValue> >::const_iterator it=unspentOutputs.begin(); it!=unspentOutputs.end(); it++)
{
depositaddr[0] = 0;
if ( tx.vout.size() > 0 && DecodeGatewaysBindOpRet(depositaddr,tx.vout[tx.vout.size()-1].scriptPubKey,coin,tokenid,totalsupply,oracletxid,M,N,pubkeys,taddr,prefix,prefix2) != 0 && M <= N && N > 1 && coin == refcoin )
txid = it->first.txhash;
if (GetTransaction(txid,tx,hashBlock,false) != 0 && tx.vout.size() > 0 && DecodeGatewaysPartialOpRet(tx.vout[tx.vout.size()-1].scriptPubKey,K,signerpk,refcoin,hex) == 'P' && K>maxK )
{
// need a decentralized way to add signatures to msig tx
n = pubkeys.size();
for (i=0; i<n; i++)
if ( mypk == pubkeys[i] )
break;
if ( i != n )
{
hex = "";
} else fprintf(stderr,"not one of the multisig signers\n");
maxK=K;
parthex=hex;
}
}
return(hex);
if (maxK>0) return(parthex);
else return ("");
}
std::string GatewaysPartialSign(uint64_t txfee,char* txidaddr,std::string refcoin, std::string hex)
{
CMutableTransaction mtx; CScript opret; CPubKey mypk,gatewayspk,signerpk; struct CCcontract_info *cp,C; CTransaction tx;
std::vector<std::pair<CAddressUnspentKey, CAddressUnspentValue> > unspentOutputs;
int32_t maxK,K; uint256 txid,parttxid,hashBlock;
cp = CCinit(&C,EVAL_GATEWAYS);
if ( txfee == 0 )
txfee = 5000;
mypk = pubkey2pk(Mypubkey());
gatewayspk = GetUnspendable(cp,0);
SetCCunspents(unspentOutputs,txidaddr);
if (unspentOutputs.size()==0)
{
if (AddNormalinputs(mtx,mypk,2*txfee,2)==0)
fprintf(stderr,"error adding funds for partialsign\n");
}
else
{
maxK=0;
for (std::vector<std::pair<CAddressUnspentKey, CAddressUnspentValue> >::const_iterator it=unspentOutputs.begin(); it!=unspentOutputs.end(); it++)
{
txid = it->first.txhash;
if (GetTransaction(txid,tx,hashBlock,false) != 0 && tx.vout.size() > 0 && DecodeGatewaysPartialOpRet(tx.vout[tx.vout.size()-1].scriptPubKey,K,signerpk,refcoin,hex) == 'P' && K>maxK )
{
maxK=K;
parttxid=txid;
}
}
if (maxK>0) mtx.vin.push_back(CTxIn(parttxid,0,CScript()));
else fprintf(stderr,"Error finding previous partial tx\n");
}
mtx.vout.push_back(CTxOut(5000,CScript() << ParseHex(HexStr(gatewayspk)) << OP_CHECKSIG));
opret << OP_RETURN << E_MARSHAL(ss << cp->evalcode << 'P' << K << mypk << refcoin << hex);
return(FinalizeCCTx(0,cp,mtx,mypk,txfee,opret));
}