int64_t CTransaction::GetValueOut() const
{
int64_t nValueOut = 0;
BOOST_FOREACH(const CTxOut& txout, vout)
{
nValueOut += txout.nValue;
if (!MoneyRange(txout.nValue) || !MoneyRange(nValueOut))
throw std::runtime_error("CTransaction::GetValueOut() : value out of range");
}
BOOST_FOREACH(const CTxIn& txin, vin)
{
if(txin.IsZCMint()){ // since mint's consume funds, they count as an output
int64_t contribution = txin.GetBtcContributionOfZerocoinTransaction();
nValueOut += contribution;
if (!MoneyRange(contribution) || !MoneyRange(nValueOut))
throw std::runtime_error("CTransaction::GetValueOut() : value out of range");
}
}
CAmount CTransaction::GetValueOut() const
{
CAmount nValueOut = 0;
for (const auto& tx_out : vout) {
nValueOut += tx_out.nValue;
if (!MoneyRange(tx_out.nValue) || !MoneyRange(nValueOut))
throw std::runtime_error(std::string(__func__) + ": value out of range");
}
return nValueOut;
}
CAmount CTransaction::GetValueOut() const
{
CAmount nValueOut = 0;
for (std::vector<CTxOut>::const_iterator it(vout.begin()); it != vout.end(); ++it)
{
nValueOut += it->nValue;
if (!MoneyRange(it->nValue) || !MoneyRange(nValueOut))
throw std::runtime_error("CTransaction::GetValueOut(): value out of range");
}
return nValueOut;
}
CAmount CTransaction::GetValueOut(bool fExcludeNames) const
{
CAmount nValueOut = 0;
for (std::vector<CTxOut>::const_iterator it(vout.begin()); it != vout.end(); ++it)
{
if (!fExcludeNames || !CNameScript::isNameScript(it->scriptPubKey))
nValueOut += it->nValue;
if (!MoneyRange(it->nValue) || !MoneyRange(nValueOut))
throw std::runtime_error("CTransaction::GetValueOut() : value out of range");
}
return nValueOut;
}
CAmount ParsePaymentAmount(const std::string& strAmount)
{
CAmount nAmount = 0;
if (strAmount.empty()) {
std::ostringstream ostr;
ostr << "ParsePaymentAmount: Amount is empty";
throw std::runtime_error(ostr.str());
}
if (strAmount.size() > 20) {
// String is much too long, the functions below impose stricter
// requirements
std::ostringstream ostr;
ostr << "ParsePaymentAmount: Amount string too long";
throw std::runtime_error(ostr.str());
}
// Make sure the string makes sense as an amount
// Note: No spaces allowed
// Also note: No scientific notation
size_t pos = strAmount.find_first_not_of("0123456789.");
if (pos != std::string::npos) {
std::ostringstream ostr;
ostr << "ParsePaymentAmount: Amount string contains invalid character";
throw std::runtime_error(ostr.str());
}
pos = strAmount.find(".");
if (pos == 0) {
// JSON doesn't allow values to start with a decimal point
std::ostringstream ostr;
ostr << "ParsePaymentAmount: Invalid amount string, leading decimal point not allowed";
throw std::runtime_error(ostr.str());
}
// Make sure there's no more than 1 decimal point
if ((pos != std::string::npos) && (strAmount.find(".", pos + 1) != std::string::npos)) {
std::ostringstream ostr;
ostr << "ParsePaymentAmount: Invalid amount string, too many decimal points";
throw std::runtime_error(ostr.str());
}
// Note this code is taken from AmountFromValue in rpcserver.cpp
// which is used for parsing the amounts in createrawtransaction.
if (!ParseFixedPoint(strAmount, 8, &nAmount)) {
nAmount = 0;
std::ostringstream ostr;
ostr << "ParsePaymentAmount: ParseFixedPoint failed for string: " << strAmount;
throw std::runtime_error(ostr.str());
}
if (!MoneyRange(nAmount)) {
nAmount = 0;
std::ostringstream ostr;
ostr << "ParsePaymentAmount: Invalid amount string, value outside of valid money range";
throw std::runtime_error(ostr.str());
}
return nAmount;
}
bool VertiCoinAmountField::validate()
{
mpq value = 0; bool valid = false;
if (VertiCoinUnits::parse(currentUnit, text(), &value) && MoneyRange(value))
valid = true;
setValid(valid);
return valid;
}
bool Consensus::CheckTxInputs(const CTransaction& tx, CValidationState& state, const CCoinsViewCache& inputs, int nSpendHeight, CAmount& txfee)
{
// are the actual inputs available?
if (!inputs.HaveInputs(tx)) {
return state.DoS(100, false, REJECT_INVALID, "bad-txns-inputs-missingorspent", false,
strprintf("%s: inputs missing/spent", __func__));
}
CAmount nValueIn = 0;
for (unsigned int i = 0; i < tx.vin.size(); ++i) {
const COutPoint &prevout = tx.vin[i].prevout;
const Coin& coin = inputs.AccessCoin(prevout);
assert(!coin.IsSpent());
// If prev is coinbase, check that it's matured
if (coin.IsCoinBase() && nSpendHeight - coin.nHeight < COINBASE_MATURITY) {
return state.Invalid(false,
REJECT_INVALID, "bad-txns-premature-spend-of-coinbase",
strprintf("tried to spend coinbase at depth %d", nSpendHeight - coin.nHeight));
}
// Check for negative or overflow input values
nValueIn += coin.out.nValue;
if (!MoneyRange(coin.out.nValue) || !MoneyRange(nValueIn)) {
return state.DoS(100, false, REJECT_INVALID, "bad-txns-inputvalues-outofrange");
}
}
const CAmount value_out = tx.GetValueOut();
if (nValueIn < value_out) {
return state.DoS(100, false, REJECT_INVALID, "bad-txns-in-belowout", false,
strprintf("value in (%s) < value out (%s)", FormatMoney(nValueIn), FormatMoney(value_out)));
}
// Tally transaction fees
const CAmount txfee_aux = nValueIn - value_out;
if (!MoneyRange(txfee_aux)) {
return state.DoS(100, false, REJECT_INVALID, "bad-txns-fee-outofrange");
}
txfee = txfee_aux;
return true;
}
CAmount AmountFromValue(const UniValue& value)
{
if (!value.isNum() && !value.isStr())
throw JSONRPCError(RPC_TYPE_ERROR, "Amount is not a number or string");
CAmount amount;
if (!ParseFixedPoint(value.getValStr(), 8, &amount))
throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount");
if (!MoneyRange(amount))
throw JSONRPCError(RPC_TYPE_ERROR, "Amount out of range");
return amount;
}
bool PaymentServer::verifyAmount(const CAmount& requestAmount)
{
bool fVerified = MoneyRange(requestAmount);
if (!fVerified) {
qWarning() << QString("PaymentServer::%1: Payment request amount out of allowed range (%2, allowed 0 - %3).")
.arg(__func__)
.arg(requestAmount)
.arg(MAX_MONEY);
}
return fVerified;
}
static CAmount AmountFromValue(const UniValue& value)
{
if (!value.isNum() && !value.isStr())
throw std::runtime_error("Amount is not a number or string");
CAmount amount;
if (!ParseFixedPoint(value.getValStr(), 8, &amount))
throw std::runtime_error("Invalid amount");
if (!MoneyRange(amount))
throw std::runtime_error("Amount out of range");
return amount;
}
CAmount CTransaction::GetValueOut() const
{
CAmount nValueOut = 0;
for (std::vector<CTxOut>::const_iterator it(vout.begin()); it != vout.end(); ++it)
{
nValueOut += it->nValue;
if (!MoneyRange(it->nValue) || !MoneyRange(nValueOut))
throw std::runtime_error("CTransaction::GetValueOut(): value out of range");
}
if (valueBalance <= 0) {
// NB: negative valueBalance "takes" money from the transparent value pool just as outputs do
nValueOut += -valueBalance;
if (!MoneyRange(-valueBalance) || !MoneyRange(nValueOut)) {
throw std::runtime_error("CTransaction::GetValueOut(): value out of range");
}
}
for (std::vector<JSDescription>::const_iterator it(vjoinsplit.begin()); it != vjoinsplit.end(); ++it)
{
// NB: vpub_old "takes" money from the transparent value pool just as outputs do
nValueOut += it->vpub_old;
if (!MoneyRange(it->vpub_old) || !MoneyRange(nValueOut))
throw std::runtime_error("CTransaction::GetValueOut(): value out of range");
}
return nValueOut;
}
CAmount CTransaction::GetShieldedValueIn() const
{
CAmount nValue = 0;
if (valueBalance >= 0) {
// NB: positive valueBalance "gives" money to the transparent value pool just as inputs do
nValue += valueBalance;
if (!MoneyRange(valueBalance) || !MoneyRange(nValue)) {
throw std::runtime_error("CTransaction::GetShieldedValueIn(): value out of range");
}
}
for (std::vector<JSDescription>::const_iterator it(vjoinsplit.begin()); it != vjoinsplit.end(); ++it)
{
// NB: vpub_new "gives" money to the transparent value pool just as inputs do
nValue += it->vpub_new;
if (!MoneyRange(it->vpub_new) || !MoneyRange(nValue))
throw std::runtime_error("CTransaction::GetShieldedValueIn(): value out of range");
}
return nValue;
}
bool CheckTransaction(const CTransaction& tx, CValidationState &state, bool fCheckDuplicateInputs)
{
// Basic checks that don't depend on any context
if (tx.vin.empty())
return state.DoS(10, false, REJECT_INVALID, "bad-txns-vin-empty");
if (tx.vout.empty())
return state.DoS(10, false, REJECT_INVALID, "bad-txns-vout-empty");
// Size limits (this doesn't take the witness into account, as that hasn't been checked for malleability)
if (::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS) * WITNESS_SCALE_FACTOR > MAX_BLOCK_WEIGHT)
return state.DoS(100, false, REJECT_INVALID, "bad-txns-oversize");
// Check for negative or overflow output values
CAmount nValueOut = 0;
for (const auto& txout : tx.vout)
{
if (txout.nValue < 0)
return state.DoS(100, false, REJECT_INVALID, "bad-txns-vout-negative");
if (txout.nValue > MAX_MONEY)
return state.DoS(100, false, REJECT_INVALID, "bad-txns-vout-toolarge");
nValueOut += txout.nValue;
if (!MoneyRange(nValueOut))
return state.DoS(100, false, REJECT_INVALID, "bad-txns-txouttotal-toolarge");
}
// Check for duplicate inputs - note that this check is slow so we skip it in CheckBlock
if (fCheckDuplicateInputs) {
std::set<COutPoint> vInOutPoints;
for (const auto& txin : tx.vin)
{
if (!vInOutPoints.insert(txin.prevout).second)
return state.DoS(100, false, REJECT_INVALID, "bad-txns-inputs-duplicate");
}
}
if (tx.IsCoinBase())
{
if (tx.vin[0].scriptSig.size() < 2 || tx.vin[0].scriptSig.size() > 100)
return state.DoS(100, false, REJECT_INVALID, "bad-cb-length");
}
else
{
for (const auto& txin : tx.vin)
if (txin.prevout.IsNull())
return state.DoS(10, false, REJECT_INVALID, "bad-txns-prevout-null");
}
return true;
}
/*
* Decompose CWallet transaction to model transaction records.
*/
QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *wallet, const CWalletTx &wtx)
{
QList<TransactionRecord> parts;
int64_t nTime = wtx.GetTxTime();
CAmount nCredit = wtx.GetCredit(ISMINE_ALL);
CAmount nDebit = wtx.GetDebit(ISMINE_ALL);
CAmount nNet = nCredit - nDebit;
uint256 hash = wtx.GetHash(), hashPrev = 0;
std::map<std::string, std::string> mapValue = wtx.mapValue;
if (nNet > 0 || wtx.IsCoinBase() || wtx.IsCoinStake())
{
//
// Credit
//
BOOST_FOREACH(const CTxOut& txout, wtx.vout)
{
isminetype mine = wallet->IsMine(txout);
if(mine)
{
TransactionRecord sub(hash, nTime);
CTxDestination address;
sub.idx = parts.size(); // sequence number
sub.credit = txout.nValue;
sub.involvesWatchAddress = mine == ISMINE_WATCH_ONLY;
if (ExtractDestination(txout.scriptPubKey, address) && IsMine(*wallet, address))
{
// Received by Bitcoin Address
sub.type = TransactionRecord::RecvWithAddress;
sub.address = CTurbogoldAddress(address).ToString();
}
else
{
// Received by IP connection (deprecated features), or a multisignature or other non-simple transaction
sub.type = TransactionRecord::RecvFromOther;
sub.address = mapValue["from"];
}
if (wtx.IsCoinBase())
{
// Generated (proof-of-work)
sub.type = TransactionRecord::Generated;
}
if (wtx.IsCoinStake())
{
// Generated (proof-of-stake)
if (hashPrev == hash)
continue; // last coinstake output
CAmount nValueOut = 0;
BOOST_FOREACH(const CTxOut& txout, wtx.vout)
{
if (IsMine(*wallet,txout.scriptPubKey))
nValueOut += txout.nValue;
if (!MoneyRange(txout.nValue) || !MoneyRange(nValueOut))
throw std::runtime_error("CTransaction::GetValueOut() : value out of range");
}
sub.type = TransactionRecord::Generated;
sub.credit = nNet > 0 ? nNet : nValueOut - nDebit;
hashPrev = hash;
}
parts.append(sub);
}
}
}