DragonX/dragonx
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 2 Wiki Activity

Validate rewards

Browse Source
This commit is contained in:
jl777
2018-07-28 00:15:31 -11:00
parent 4f839b5c9c
commit 0af767e098
1 changed files with 86 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

119
src/cc/rewards.cpp
View File

@@ -92,7 +92,7 @@ uint8_t DecodeRewardsFundingOpRet(const CScript &scriptPubKey,uint64_t &sbits,ui
std::vector<uint8_t> vopret; uint8_t *script,e,f;
GetOpReturnData(scriptPubKey, vopret);
script = (uint8_t *)vopret.data();
if ( E_UNMARSHAL(vopret,ss >> e; ss >> f; ss >> sbits; ss >> APR; ss >> minseconds; ss >> maxseconds; ss >> mindeposit) != 0 )
if ( vopret.size() > 2 && E_UNMARSHAL(vopret,ss >> e; ss >> f; ss >> sbits; ss >> APR; ss >> minseconds; ss >> maxseconds; ss >> mindeposit) != 0 )
{
if ( e == EVAL_REWARDS && f == 'F' )
return(f);
@@ -107,15 +107,26 @@ CScript EncodeRewardsOpRet(uint8_t funcid,uint64_t sbits,uint256 fundingtxid)
return(opret);
}
uint8_t DecodeRewardsOpRet(const CScript &scriptPubKey,uint64_t &sbits,uint256 &fundingtxid)
uint8_t DecodeRewardsOpRet(uint256 txid,const CScript &scriptPubKey,uint64_t &sbits,uint256 &fundingtxid)
{
std::vector<uint8_t> vopret; uint8_t *script,e,f;
std::vector<uint8_t> vopret; uint8_t *script,e,f; uint64_t APR,minseconds,maxseconds,mindeposit;
GetOpReturnData(scriptPubKey, vopret);
script = (uint8_t *)vopret.data();
if ( E_UNMARSHAL(vopret,ss >> e; ss >> f; ss >> sbits; ss >> fundingtxid) != 0 )
if ( vopret.size() > 2 )
{
if ( e == EVAL_REWARDS && (f == 'L' || f == 'U' || f == 'A') )
return(f);
script = (uint8_t *)vopret.data();
if ( script[0] == EVAL_REWARDS )
{
if ( script[1] == 'F' )
{
if ( (funcid= DecodeRewardsFundingOpRet(scriptPubKey,sbits,APR,minseconds,maxseconds,mindeposit)) == 'F' )
fundingtxid = txid;
}
else if ( E_UNMARSHAL(vopret,ss >> e; ss >> f; ss >> sbits; ss >> fundingtxid) != 0 )
{
if ( e == EVAL_REWARDS && (f == 'L' || f == 'U' || f == 'A') )
return(f);
}
}
}
return(0);
}
@@ -131,10 +142,10 @@ uint64_t IsRewardsvout(struct CCcontract_info *cp,const CTransaction& tx,int32_t
return(0);
}
bool RewardsExactAmounts(struct CCcontract_info *cp,Eval* eval,const CTransaction &tx,int32_t minage,uint64_t txfee)
bool RewardsExactAmounts(struct CCcontract_info *cp,Eval *eval,const CTransaction &tx,uint64_t txfee)
{
static uint256 zerohash;
CTransaction vinTx; uint256 hashBlock,activehash; int32_t i,numvins,numvouts; uint64_t inputs=0,outputs=0,assetoshis;
CTransaction vinTx; uint256 hashBlock; int32_t i,numvins,numvouts; uint64_t inputs=0,outputs=0,assetoshis;
numvins = tx.vin.size();
numvouts = tx.vout.size();
for (i=0; i<numvins; i++)
@@ -158,17 +169,17 @@ bool RewardsExactAmounts(struct CCcontract_info *cp,Eval* eval,const CTransactio
if ( (assetoshis= IsRewardsvout(cp,tx,i)) != 0 )
outputs += assetoshis;
}
if ( inputs != outputs+COIN+txfee )
if ( inputs != outputs+txfee )
{
fprintf(stderr,"inputs %llu vs outputs %llu\n",(long long)inputs,(long long)outputs);
return eval->Invalid("mismatched inputs != outputs + COIN + txfee");
return eval->Invalid("mismatched inputs != outputs + txfee");
}
else return(true);
}
bool RewardsValidate(struct CCcontract_info *cp,Eval* eval,const CTransaction &tx)
{
int32_t numvins,numvouts,preventCCvins,preventCCvouts,i;
uint256 txid,fundingtxid; uint64_t sbits,APR,minseconds,maxseconds,mindeposit,amount,reward; int32_t numvins,numvouts,preventCCvins,preventCCvouts,i; uint8_t funcid; CScript scriptPubKey; CTransaction fundingTx,vinTx;
numvins = tx.vin.size();
numvouts = tx.vout.size();
preventCCvins = preventCCvouts = -1;
@@ -176,26 +187,70 @@ bool RewardsValidate(struct CCcontract_info *cp,Eval* eval,const CTransaction &t
return eval->Invalid("no vouts");
else
{
// follow rules
for (i=0; i<numvins; i++)
txid = tx.GetHash();
if ( (funcid= DecodeRewardsOpRet(txid,tx.vout[numvouts-1].scriptPubKey,sbits,fundingtxid)) != 0 )
{
if ( IsCCInput(tx.vin[0].scriptSig) == 0 )
return eval->Invalid("illegal normal vini");
}
if ( RewardsExactAmounts(cp,eval,tx,1,10000) == false )
return false;
else
{
preventCCvouts = 1;
if ( IsRewardsvout(cp,tx,0) != 0 )
if ( eval->GetTxUnconfirmed(fundingtxid,fundingTx,hashBlock) == 0 )
return eval->Invalid("cant find fundingtxid");
else if ( fundingTx.vout.size() > 0 && DecodeRewardsFundingOpRet(fundingTx.vout[fundingTx.vout.size()-1].scriptPubKey,sbits,APR,minseconds,maxseconds,mindeposit) != 'F' )
return eval->Invalid("fundingTx not valid");
switch ( funcid )
{
preventCCvouts++;
i = 1;
} else i = 0;
if ( tx.vout[i].nValue != COIN )
return eval->Invalid("invalid rewards output");
return(PreventCC(eval,tx,preventCCvins,numvins,preventCCvouts,numvouts));
case 'F':
//vins.*: normal inputs
//vout.0: CC vout for funding
//vout.1: normal marker vout for easy searching
//vout.2: normal change
//vout.n-1: opreturn 'F' sbits APR minseconds maxseconds mindeposit
return eval->Invalid("unexpected RewardsValidate for createfunding");
break;
case 'A':
//vins.*: normal inputs
//vout.0: CC vout for funding
//vout.1: normal change
//vout.n-1: opreturn 'A' sbits fundingtxid
return eval->Invalid("unexpected RewardsValidate for addfunding");
break;
case 'L':
//vins.*: normal inputs
//vout.0: CC vout for locked funds
//vout.1: normal output to unlock address
//vout.2: change
//vout.n-1: opreturn 'L' sbits fundingtxid
return eval->Invalid("unexpected RewardsValidate for lock");
break;
case 'U':
//vin.0: locked funds CC vout.0 from lock
//vin.1+: funding CC vout.0 from 'F' and 'A' and 'U'
//vout.0: funding CC change
//vout.1: normal output to unlock address
//vout.n-1: opreturn 'U' sbits fundingtxid
for (i=0; i<numvins; i++)
{
if ( (*cp->ismyvin)(tx.vin[i].scriptSig) == 0 )
return eval->Invalid("unexpected normal vin for unlock");
}
if ( RewardsExactAmounts(cp,eval,tx,txfee+tx.vout[1].nValue) == 0 )
return false;
else if ( eval->GetTxUnconfirmed(tx.vin[0].prevout.hash,vinTx,hashBlock) == 0 )
return eval->Invalid("always should find vin.0, but didnt");
else if ( vinTx.vout[0].scriptPubKey.IsPayToCryptoCondition() == 0 )
return eval->Invalid("lock tx vout.0 is normal output");
else if ( tx.vout.size() < 3 )
return eval->Invalid("unlock tx not enough vouts");
else if ( tx.vout[0].scriptPubKey.IsPayToCryptoCondition() == 0 )
return eval->Invalid("unlock tx vout.0 is normal output");
else if ( tx.vout[1].scriptPubKey.IsPayToCryptoCondition() A= 0 )
return eval->Invalid("unlock tx vout.1 is CC output");
amount = vinTx.vout[0].nValue;
reward = RewardsCalc(amount,txid,APR,minseconds,maxseconds,mindeposit);
if ( tx.vout[1].nValue > amount+reward )
return eval->Invalid("unlock tx vout.1 isnt amount+reward");
preventCCvouts = 1;
break;
}
}
return(PreventCC(eval,tx,preventCCvins,numvins,preventCCvouts,numvouts));
}
return(true);
}
@@ -218,7 +273,7 @@ uint64_t AddRewardsInputs(CScript &scriptPubKey,int32_t fundsflag,struct CCcontr
continue;
if ( GetTransaction(txid,tx,hashBlock,false) != 0 && tx.vout.size() > 0 && tx.vout[vout].scriptPubKey.IsPayToCryptoCondition() != 0 )
{
if ( (funcid= DecodeRewardsFundingOpRet(tx.vout[tx.vout.size()-1].scriptPubKey,sbits,APR,minseconds,maxseconds,mindeposit)) == 'F' || (funcid= DecodeRewardsOpRet(tx.vout[tx.vout.size()-1].scriptPubKey,sbits,fundingtxid)) != 0 )
if ( (funcid= DecodeRewardsOpRet(txid,tx.vout[tx.vout.size()-1].scriptPubKey,sbits,fundingtxid)) != 0 )
{
if ( fundsflag != 0 && funcid != 'F' && funcid != 'A' && funcid != 'U' )
continue;
@@ -252,14 +307,12 @@ uint64_t RewardsPlanFunds(uint64_t refsbits,struct CCcontract_info *cp,CPubKey p
vout = (int32_t)it->first.index;
if ( GetTransaction(txid,tx,hashBlock,false) != 0 && tx.vout[vout].scriptPubKey.IsPayToCryptoCondition() != 0 )
{
if ( (funcid= DecodeRewardsFundingOpRet(tx.vout[tx.vout.size()-1].scriptPubKey,sbits,APR,minseconds,maxseconds,mindeposit)) == 'F' || (funcid= DecodeRewardsOpRet(tx.vout[tx.vout.size()-1].scriptPubKey,sbits,fundingtxid)) == 'A' || funcid == 'U' )
if ( (funcid= DecodeRewardsOpRet(txid,tx.vout[tx.vout.size()-1].scriptPubKey,sbits,fundingtxid)) != 0 )
{
if ( (funcid == 'F' && reffundingtxid == txid) || reffundingtxid == fundingtxid )
{
if ( refsbits == sbits && (nValue= IsRewardsvout(cp,tx,vout)) > 0 )
{
totalinputs += nValue;
}
else fprintf(stderr,"refsbits.%llx sbits.%llx nValue %.8f\n",(long long)refsbits,(long long)sbits,(double)nValue/COIN);
} else fprintf(stderr,"else case\n");
} else fprintf(stderr,"funcid.%d %c skipped %.8f\n",funcid,funcid,(double)tx.vout[vout].nValue/COIN);