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@ -244,7 +244,7 @@ bool ChannelsValidate(struct CCcontract_info *cp,Eval* eval,const CTransaction & |
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return eval->Invalid("vout.1 is CC for channelOpen"); |
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else if ( tx.vout[2].scriptPubKey.IsPayToCryptoCondition() == 0 ) |
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return eval->Invalid("vout.2 is CC for channelOpen"); |
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else if ( numpayments > 1000) |
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else if ( numpayments > CHANNELS_MAXPAYMENTS) |
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return eval->Invalid("too many payment increments"); |
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else if ( tx.vout[0].nValue != param1 * param2) |
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return eval->Invalid("tx funds do not match sum of payments"); |
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@ -287,7 +287,6 @@ int64_t AddChannelsInputs(struct CCcontract_info *cp,CMutableTransaction &mtx, u |
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GetCCaddress1of2(cp,coinaddr,srcpub,destpub); |
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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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if ( (int32_t)it->first.index==0 && GetTransaction(it->first.txhash,tx,hashBlock,false) != 0 && (numvouts= tx.vout.size()) > 0) |
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@ -301,12 +300,10 @@ int64_t AddChannelsInputs(struct CCcontract_info *cp,CMutableTransaction &mtx, u |
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} |
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} |
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} |
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if (myIsutxo_spentinmempool(txid,vout) != 0) |
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{ |
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txid=zeroid; |
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int32_t mindepth=1000; |
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BOOST_FOREACH(const CTxMemPoolEntry &e, mempool.mapTx) |
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{ |
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const CTransaction &txmempool = e.GetTx(); |
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@ -323,7 +320,6 @@ int64_t AddChannelsInputs(struct CCcontract_info *cp,CMutableTransaction &mtx, u |
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} |
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} |
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} |
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if (txid != zeroid) |
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{ |
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mtx.vin.push_back(CTxIn(txid,vout,CScript())); |
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@ -344,6 +340,8 @@ std::string ChannelOpen(uint64_t txfee,CPubKey destpub,int32_t numpayments,int64 |
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cp = CCinit(&C,EVAL_CHANNELS); |
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if ( txfee == 0 ) |
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txfee = 10000; |
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if (numpayments>CHANNELS_MAXPAYMENTS) |
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return (""); |
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mypk = pubkey2pk(Mypubkey()); |
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funds = numpayments * payment; |
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if ( AddNormalinputs(mtx,mypk,funds+3*txfee,64) > 0 ) |
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@ -364,38 +362,78 @@ std::string ChannelOpen(uint64_t txfee,CPubKey destpub,int32_t numpayments,int64 |
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return(""); |
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} |
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std::string ChannelPayment(uint64_t txfee,uint256 prevtxid,uint256 opentxid,int32_t numpayments) |
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std::string ChannelPayment(uint64_t txfee,uint256 opentxid,uint256 prevtxid,int64_t amount) |
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{ |
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CMutableTransaction mtx; CPubKey mypk,srcpub,destpub; uint256 txid,secret,hashblock,entropy,hentropy,param3; |
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struct CCcontract_info *cp,C; int32_t i,funcid,prevdepth,numvouts,param1; |
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struct CCcontract_info *cp,C; int32_t i,funcid,prevdepth,numvouts,numpayments,param1; |
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int64_t param2,payment,change,funds; |
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uint8_t hash[32],hashdest[32]; |
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CTransaction channelOpenTx,prevTx; |
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if (GetTransaction(prevtxid,prevTx,hashblock,false) != 0) |
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if (opentxid==prevtxid) |
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{ |
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if ((numvouts=prevTx.vout.size()) > 0 && ((funcid = DecodeChannelsPaymentOpRet(prevTx.vout[numvouts-1].scriptPubKey, txid, txid, srcpub, destpub, param1, param2, param3)) != 0) && (funcid == 'O' || funcid == 'P')) |
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if (GetTransaction(opentxid,channelOpenTx,hashblock,false) != 0) |
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{ |
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if (mypk != srcpub || mypk != destpub) |
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if ((numvouts=prevTx.vout.size()) > 0 && ((funcid = DecodeChannelsOpRet(prevTx.vout[numvouts-1].scriptPubKey, txid, srcpub, destpub, param1, param2, param3)) != 0) && funcid == 'O') |
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{ |
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fprintf(stderr,"this is not our channel\n"); |
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if (mypk == srcpub || mypk == destpub) |
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{ |
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prevdepth=param1; |
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payment=param2; |
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} |
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else |
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{ |
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fprintf(stderr,"this is not our channel\n"); |
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return(""); |
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} |
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} |
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else |
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{ |
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fprintf(stderr,"invalid previous txid\n"); |
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return(""); |
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} |
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if (amount % payment != 0) |
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return (""); |
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numpayments=amount/payment; |
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hentropy = DiceHashEntropy(entropy, channelOpenTx.vin[0].prevout.hash); |
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endiancpy(hash, (uint8_t * ) & hentropy, 32); |
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for (i = 0; i < numpayments; i++) |
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{ |
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vcalc_sha256(0, hashdest, hash, 32); |
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memcpy(hash, hashdest, 32); |
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} |
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endiancpy((uint8_t * ) & secret, hashdest, 32); |
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prevdepth=param1; |
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payment=param2; |
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} |
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} |
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else if (GetTransaction(prevtxid,prevTx,hashblock,false) != 0) |
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{ |
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if ((numvouts=prevTx.vout.size()) > 0 && ((funcid = DecodeChannelsPaymentOpRet(prevTx.vout[numvouts-1].scriptPubKey, txid, txid, srcpub, destpub, param1, param2, param3)) != 0) && funcid == 'P') |
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{ |
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if (mypk == srcpub || mypk == destpub) |
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{ |
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prevdepth=param1; |
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payment=param2; |
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} |
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else |
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{ |
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fprintf(stderr,"this is not our channel\n"); |
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return(""); |
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} |
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} |
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else |
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{ |
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fprintf(stderr,"invalid previous txid\n"); |
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return(""); |
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} |
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if ((numpayments=amount % payment) != 0) |
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return (""); |
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numpayments=amount/payment; |
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if (GetTransaction(opentxid,channelOpenTx,hashblock,false) != 0) |
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{ |
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hentropy = DiceHashEntropy(entropy, channelOpenTx.vin[0].prevout.hash); |
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endiancpy(hash, (uint8_t * ) & hentropy, 32); |
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for (i = 0; i < prevdepth-numpayments; i++) |
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for (i = 0; i < numpayments; i++) |
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{ |
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vcalc_sha256(0, hashdest, hash, 32); |
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memcpy(hash, hashdest, 32); |
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@ -416,8 +454,8 @@ std::string ChannelPayment(uint64_t txfee,uint256 prevtxid,uint256 opentxid,int3 |
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mypk = pubkey2pk(Mypubkey()); |
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if ( AddNormalinputs(mtx,mypk,2*txfee,1) > 0 ) |
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{ |
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if ((funds=AddChannelsInputs(cp,mtx,prevtxid)) != 0 && (change=funds-numpayments*payment)>=0) { |
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mtx.vout.push_back(CTxOut(numpayments * payment, CScript() << ParseHex(HexStr(destpub)) << OP_CHECKSIG)); |
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if ((funds=AddChannelsInputs(cp,mtx,prevtxid)) != 0 && (change=funds-amount)>=0) { |
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mtx.vout.push_back(CTxOut(amount, CScript() << ParseHex(HexStr(destpub)) << OP_CHECKSIG)); |
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mtx.vout.push_back(MakeCC1vout(EVAL_CHANNELS, txfee, mypk)); |
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mtx.vout.push_back(MakeCC1of2vout(EVAL_CHANNELS, change, mypk, destpub)); |
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return (FinalizeCCTx(0, cp, mtx, mypk, txfee, EncodeChannelsPaymentOpRet('P', opentxid, prevtxid, mypk, destpub, prevdepth - numpayments, payment, secret))); |
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@ -426,7 +464,7 @@ std::string ChannelPayment(uint64_t txfee,uint256 prevtxid,uint256 opentxid,int3 |
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return(""); |
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} |
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std::string ChannelClose(uint64_t txfee,uint256 prevtxid,uint256 opentxid,CPubKey destpub) |
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std::string ChannelClose(uint64_t txfee,uint256 opentxid) |
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{ |
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CMutableTransaction mtx; CPubKey mypk; struct CCcontract_info *cp,C; |
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// verify this is one of our outbound channels
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@ -437,12 +475,12 @@ std::string ChannelClose(uint64_t txfee,uint256 prevtxid,uint256 opentxid,CPubKe |
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if ( AddNormalinputs(mtx,mypk,2*txfee,1) > 0 ) |
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{ |
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mtx.vout.push_back(MakeCC1vout(EVAL_CHANNELS,txfee,mypk)); |
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return(FinalizeCCTx(0,cp,mtx,mypk,txfee,EncodeChannelsOpRet('S',opentxid,mypk,destpub,0,0,zeroid))); |
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return(FinalizeCCTx(0,cp,mtx,mypk,txfee,EncodeChannelsOpRet('S',opentxid,mypk,mypk,0,0,zeroid))); |
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} |
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return(""); |
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} |
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std::string ChannelRefund(uint64_t txfee,uint256 closetxid,uint256 opentxid) |
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std::string ChannelRefund(uint64_t txfee,uint256 opentxid,uint256 closetxid) |
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{ |
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CMutableTransaction mtx; CPubKey mypk; struct CCcontract_info *cp,C; int64_t amount; |
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// verify stoptxid and origtxid match and are mine
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