static void MutateTxAddOutData(CMutableTransaction& tx, const std::string& strInput)
{
CAmount value = 0;
// separate [VALUE:]DATA in string
size_t pos = strInput.find(':');
if (pos==0)
throw std::runtime_error("TX output value not specified");
if (pos != std::string::npos) {
// extract and validate VALUE
std::string strValue = strInput.substr(0, pos);
if (!ParseMoney(strValue, value))
throw std::runtime_error("invalid TX output value");
}
// extract and validate DATA
std::string strData = strInput.substr(pos + 1, std::string::npos);
if (!IsHex(strData))
throw std::runtime_error("invalid TX output data");
std::vector<unsigned char> data = ParseHex(strData);
CTxOut txout(value, CScript() << OP_RETURN << data);
tx.vout.push_back(txout);
}
static void MutateTxAddOutAddr(CMutableTransaction& tx, const std::string& strInput)
{
// separate VALUE:ADDRESS in string
size_t pos = strInput.find(':');
if ((pos == std::string::npos) ||
(pos == 0) ||
(pos == (strInput.size() - 1)))
throw std::runtime_error("TX output missing separator");
// extract and validate VALUE
std::string strValue = strInput.substr(0, pos);
CAmount value;
if (!ParseMoney(strValue, value))
throw std::runtime_error("invalid TX output value");
// extract and validate ADDRESS
std::string strAddr = strInput.substr(pos + 1, std::string::npos);
CBitcoinAddress addr(strAddr);
if (!addr.IsValid())
throw std::runtime_error("invalid TX output address");
// build standard output script via GetScriptForDestination()
CScript scriptPubKey = GetScriptForDestination(addr.Get());
// construct TxOut, append to transaction output list
CTxOut txout(value, scriptPubKey);
tx.vout.push_back(txout);
}
int CPrivateSend::GetDenominationsByAmounts(const std::vector<CAmount>& vecAmount)
{
CScript scriptTmp = CScript();
std::vector<CTxOut> vecTxOut;
BOOST_REVERSE_FOREACH(CAmount nAmount, vecAmount) {
CTxOut txout(nAmount, scriptTmp);
vecTxOut.push_back(txout);
}
static void MutateTxAddOutScript(CMutableTransaction& tx, const std::string& strInput)
{
// separate VALUE:SCRIPT[:FLAGS]
std::vector<std::string> vStrInputParts;
boost::split(vStrInputParts, strInput, boost::is_any_of(":"));
if (vStrInputParts.size() < 2)
throw std::runtime_error("TX output missing separator");
// Extract and validate VALUE
CAmount value = ExtractAndValidateValue(vStrInputParts[0]);
// extract and validate script
std::string strScript = vStrInputParts[1];
CScript scriptPubKey = ParseScript(strScript);
// Extract FLAGS
bool bSegWit = false;
bool bScriptHash = false;
if (vStrInputParts.size() == 3) {
std::string flags = vStrInputParts.back();
bSegWit = (flags.find('W') != std::string::npos);
bScriptHash = (flags.find('S') != std::string::npos);
}
if (scriptPubKey.size() > MAX_SCRIPT_SIZE) {
throw std::runtime_error(strprintf(
"script exceeds size limit: %d > %d", scriptPubKey.size(), MAX_SCRIPT_SIZE));
}
if (bSegWit) {
scriptPubKey = GetScriptForWitness(scriptPubKey);
}
if (bScriptHash) {
if (scriptPubKey.size() > MAX_SCRIPT_ELEMENT_SIZE) {
throw std::runtime_error(strprintf(
"redeemScript exceeds size limit: %d > %d", scriptPubKey.size(), MAX_SCRIPT_ELEMENT_SIZE));
}
scriptPubKey = GetScriptForDestination(CScriptID(scriptPubKey));
}
// construct TxOut, append to transaction output list
CTxOut txout(value, scriptPubKey);
tx.vout.push_back(txout);
}
static void MutateTxAddOutPubKey(CMutableTransaction& tx, const std::string& strInput)
{
// Separate into VALUE:PUBKEY[:FLAGS]
std::vector<std::string> vStrInputParts;
boost::split(vStrInputParts, strInput, boost::is_any_of(":"));
if (vStrInputParts.size() < 2 || vStrInputParts.size() > 3)
throw std::runtime_error("TX output missing or too many separators");
// Extract and validate VALUE
CAmount value = ExtractAndValidateValue(vStrInputParts[0]);
// Extract and validate PUBKEY
CPubKey pubkey(ParseHex(vStrInputParts[1]));
if (!pubkey.IsFullyValid())
throw std::runtime_error("invalid TX output pubkey");
CScript scriptPubKey = GetScriptForRawPubKey(pubkey);
// Extract and validate FLAGS
bool bSegWit = false;
bool bScriptHash = false;
if (vStrInputParts.size() == 3) {
std::string flags = vStrInputParts[2];
bSegWit = (flags.find('W') != std::string::npos);
bScriptHash = (flags.find('S') != std::string::npos);
}
if (bSegWit) {
if (!pubkey.IsCompressed()) {
throw std::runtime_error("Uncompressed pubkeys are not useable for SegWit outputs");
}
// Call GetScriptForWitness() to build a P2WSH scriptPubKey
scriptPubKey = GetScriptForWitness(scriptPubKey);
}
if (bScriptHash) {
// Get the ID for the script, and then construct a P2SH destination for it.
scriptPubKey = GetScriptForDestination(CScriptID(scriptPubKey));
}
// construct TxOut, append to transaction output list
CTxOut txout(value, scriptPubKey);
tx.vout.push_back(txout);
}
std::vector<std::shared_ptr<CoinDB::TxOut>> CreateTxDialog::getTxOuts()
{
std::vector<std::shared_ptr<CoinDB::TxOut>> txouts;
std::set<TxOutLayout*> txOutLayoutsCopy = txOutLayouts;
for (auto& txOutLayout: txOutLayoutsCopy) {
if (txOutLayout->getAddress().isEmpty()) {
removeTxOut(txOutLayout);
continue;
}
std::shared_ptr<CoinDB::TxOut> txout(new CoinDB::TxOut(txOutLayout->getValue(), txOutLayout->getScript()));
txout->sending_label(txOutLayout->getRecipient().toStdString());
txouts.push_back(txout);
}
if (txouts.empty()) {
addTxOut();
throw std::runtime_error("No outputs entered.");
}
return txouts;
}
void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
{
if (!model)
return;
// nPayAmount
CAmount nPayAmount = 0;
bool fDust = false;
CMutableTransaction txDummy;
Q_FOREACH(const CAmount &amount, CoinControlDialog::payAmounts)
{
nPayAmount += amount;
if (amount > 0)
{
CTxOut txout(amount, (CScript)std::vector<unsigned char>(24, 0));
txDummy.vout.push_back(txout);
if (txout.IsDust(::minRelayTxFee))
fDust = true;
}
}
bool TestChainForComputingMediansSetup::GenerateRandomTransaction(CTransaction& txNew)
{
CAmount amountToSend = 5000;
std::vector<CTransaction> res;
CKey key;
key.MakeNewKey(true);
CScript scriptPubKey = CScript() << ToByteVector(key.GetPubKey())
<< OP_CHECKSIG;
CBasicKeyStore keystore;
keystore.AddKeyPubKey(coinbaseKey, coinbaseKey.GetPubKey());
CTransaction utxo = coinbaseTxns[0];
coinbaseTxns.erase(coinbaseTxns.begin());
txNew.nLockTime = chainActive.Height();
txNew.vin.clear();
txNew.vout.clear();
for (int j = 0; j < nOutputs; ++j) {
CTxOut txout(amountToSend, scriptPubKey);
txNew.vout.push_back(txout);
}
//vin
CTxIn vin = CTxIn(utxo.GetHash(), 0, CScript(),
std::numeric_limits<unsigned int>::max() - 1);
txNew.vin.push_back(vin);
//previous tx's script pub key that we need to sign
CScript& scriptSigRes = txNew.vin[0].scriptSig;
CTransaction txNewConst(txNew);
ProduceSignature(TransactionSignatureCreator(&keystore, &txNewConst, 0),
utxo.vout[0].scriptPubKey, scriptSigRes);
res.push_back(txNew);
return true;
}
static void MutateTxAddOutScript(CMutableTransaction& tx, const std::string& strInput)
{
// separate VALUE:SCRIPT in string
size_t pos = strInput.find(':');
if ((pos == std::string::npos) ||
(pos == 0))
throw std::runtime_error("TX output missing separator");
// extract and validate VALUE
std::string strValue = strInput.substr(0, pos);
CAmount value;
if (!ParseMoney(strValue, value))
throw std::runtime_error("invalid TX output value");
// extract and validate script
std::string strScript = strInput.substr(pos + 1, std::string::npos);
CScript scriptPubKey = ParseScript(strScript); // throws on err
// construct TxOut, append to transaction output list
CTxOut txout(value, scriptPubKey);
tx.vout.push_back(txout);
}
static void MutateTxAddOutAddr(CMutableTransaction& tx, const std::string& strInput)
{
// Separate into VALUE:ADDRESS
std::vector<std::string> vStrInputParts;
boost::split(vStrInputParts, strInput, boost::is_any_of(":"));
if (vStrInputParts.size() != 2)
throw std::runtime_error("TX output missing or too many separators");
// Extract and validate VALUE
CAmount value = ExtractAndValidateValue(vStrInputParts[0]);
// extract and validate ADDRESS
std::string strAddr = vStrInputParts[1];
CTxDestination destination = DecodeDestination(strAddr);
if (!IsValidDestination(destination)) {
throw std::runtime_error("invalid TX output address");
}
CScript scriptPubKey = GetScriptForDestination(destination);
// construct TxOut, append to transaction output list
CTxOut txout(value, scriptPubKey);
tx.vout.push_back(txout);
}
void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
{
if (!model)
return;
// nPayAmount
CAmount nPayAmount = 0;
bool fDust = false;
CMutableTransaction txDummy;
for (const CAmount &amount : CoinControlDialog::payAmounts)
{
nPayAmount += amount;
if (amount > 0)
{
CTxOut txout(amount, (CScript)std::vector<unsigned char>(24, 0));
txDummy.vout.push_back(txout);
fDust |= IsDust(txout, ::dustRelayFee);
}
}
CAmount nAmount = 0;
CAmount nPayFee = 0;
CAmount nAfterFee = 0;
CAmount nChange = 0;
unsigned int nBytes = 0;
unsigned int nBytesInputs = 0;
unsigned int nQuantity = 0;
bool fWitness = false;
std::vector<COutPoint> vCoinControl;
std::vector<COutput> vOutputs;
coinControl->ListSelected(vCoinControl);
model->getOutputs(vCoinControl, vOutputs);
for (const COutput& out : vOutputs) {
// unselect already spent, very unlikely scenario, this could happen
// when selected are spent elsewhere, like rpc or another computer
uint256 txhash = out.tx->GetHash();
COutPoint outpt(txhash, out.i);
if (model->isSpent(outpt))
{
coinControl->UnSelect(outpt);
continue;
}
// Quantity
nQuantity++;
// Amount
nAmount += out.tx->tx->vout[out.i].nValue;
// Bytes
CTxDestination address;
int witnessversion = 0;
std::vector<unsigned char> witnessprogram;
if (out.tx->tx->vout[out.i].scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram))
{
nBytesInputs += (32 + 4 + 1 + (107 / WITNESS_SCALE_FACTOR) + 4);
fWitness = true;
}
else if(ExtractDestination(out.tx->tx->vout[out.i].scriptPubKey, address))
{
CPubKey pubkey;
CKeyID *keyid = boost::get<CKeyID>(&address);
if (keyid && model->getPubKey(*keyid, pubkey))
{
nBytesInputs += (pubkey.IsCompressed() ? 148 : 180);
}
else
nBytesInputs += 148; // in all error cases, simply assume 148 here
}
else nBytesInputs += 148;
}
// calculation
if (nQuantity > 0)
{
// Bytes
nBytes = nBytesInputs + ((CoinControlDialog::payAmounts.size() > 0 ? CoinControlDialog::payAmounts.size() + 1 : 2) * 34) + 10; // always assume +1 output for change here
if (fWitness)
{
// there is some fudging in these numbers related to the actual virtual transaction size calculation that will keep this estimate from being exact.
// usually, the result will be an overestimate within a couple of satoshis so that the confirmation dialog ends up displaying a slightly smaller fee.
// also, the witness stack size value is a variable sized integer. usually, the number of stack items will be well under the single byte var int limit.
nBytes += 2; // account for the serialized marker and flag bytes
nBytes += nQuantity; // account for the witness byte that holds the number of stack items for each input.
}
// in the subtract fee from amount case, we can tell if zero change already and subtract the bytes, so that fee calculation afterwards is accurate
if (CoinControlDialog::fSubtractFeeFromAmount)
if (nAmount - nPayAmount == 0)
nBytes -= 34;
// Fee
nPayFee = CWallet::GetMinimumFee(nBytes, *coinControl, ::mempool, ::feeEstimator, nullptr /* FeeCalculation */);
if (nPayAmount > 0)
{
nChange = nAmount - nPayAmount;
if (!CoinControlDialog::fSubtractFeeFromAmount)
nChange -= nPayFee;
// Never create dust outputs; if we would, just add the dust to the fee.
if (nChange > 0 && nChange < MIN_CHANGE)
{
CTxOut txout(nChange, (CScript)std::vector<unsigned char>(24, 0));
if (IsDust(txout, ::dustRelayFee))
{
nPayFee += nChange;
nChange = 0;
if (CoinControlDialog::fSubtractFeeFromAmount)
nBytes -= 34; // we didn't detect lack of change above
}
}
if (nChange == 0 && !CoinControlDialog::fSubtractFeeFromAmount)
nBytes -= 34;
}
// after fee
nAfterFee = std::max<CAmount>(nAmount - nPayFee, 0);
}
// actually update labels
int nDisplayUnit = WiFicoinUnits::WFC;
if (model && model->getOptionsModel())
nDisplayUnit = model->getOptionsModel()->getDisplayUnit();
QLabel *l1 = dialog->findChild<QLabel *>("labelCoinControlQuantity");
QLabel *l2 = dialog->findChild<QLabel *>("labelCoinControlAmount");
QLabel *l3 = dialog->findChild<QLabel *>("labelCoinControlFee");
QLabel *l4 = dialog->findChild<QLabel *>("labelCoinControlAfterFee");
QLabel *l5 = dialog->findChild<QLabel *>("labelCoinControlBytes");
QLabel *l7 = dialog->findChild<QLabel *>("labelCoinControlLowOutput");
QLabel *l8 = dialog->findChild<QLabel *>("labelCoinControlChange");
// enable/disable "dust" and "change"
dialog->findChild<QLabel *>("labelCoinControlLowOutputText")->setEnabled(nPayAmount > 0);
dialog->findChild<QLabel *>("labelCoinControlLowOutput") ->setEnabled(nPayAmount > 0);
dialog->findChild<QLabel *>("labelCoinControlChangeText") ->setEnabled(nPayAmount > 0);
dialog->findChild<QLabel *>("labelCoinControlChange") ->setEnabled(nPayAmount > 0);
// stats
l1->setText(QString::number(nQuantity)); // Quantity
l2->setText(WiFicoinUnits::formatWithUnit(nDisplayUnit, nAmount)); // Amount
l3->setText(WiFicoinUnits::formatWithUnit(nDisplayUnit, nPayFee)); // Fee
l4->setText(WiFicoinUnits::formatWithUnit(nDisplayUnit, nAfterFee)); // After Fee
l5->setText(((nBytes > 0) ? ASYMP_UTF8 : "") + QString::number(nBytes)); // Bytes
l7->setText(fDust ? tr("yes") : tr("no")); // Dust
l8->setText(WiFicoinUnits::formatWithUnit(nDisplayUnit, nChange)); // Change
if (nPayFee > 0)
{
l3->setText(ASYMP_UTF8 + l3->text());
l4->setText(ASYMP_UTF8 + l4->text());
if (nChange > 0 && !CoinControlDialog::fSubtractFeeFromAmount)
l8->setText(ASYMP_UTF8 + l8->text());
}
// turn label red when dust
l7->setStyleSheet((fDust) ? "color:red;" : "");
// tool tips
QString toolTipDust = tr("This label turns red if any recipient receives an amount smaller than the current dust threshold.");
// how many satoshis the estimated fee can vary per byte we guess wrong
double dFeeVary = (double)nPayFee / nBytes;
QString toolTip4 = tr("Can vary +/- %1 satoshi(s) per input.").arg(dFeeVary);
l3->setToolTip(toolTip4);
l4->setToolTip(toolTip4);
l7->setToolTip(toolTipDust);
l8->setToolTip(toolTip4);
dialog->findChild<QLabel *>("labelCoinControlFeeText") ->setToolTip(l3->toolTip());
dialog->findChild<QLabel *>("labelCoinControlAfterFeeText") ->setToolTip(l4->toolTip());
dialog->findChild<QLabel *>("labelCoinControlBytesText") ->setToolTip(l5->toolTip());
dialog->findChild<QLabel *>("labelCoinControlLowOutputText")->setToolTip(l7->toolTip());
dialog->findChild<QLabel *>("labelCoinControlChangeText") ->setToolTip(l8->toolTip());
// Insufficient funds
QLabel *label = dialog->findChild<QLabel *>("labelCoinControlInsuffFunds");
if (label)
label->setVisible(nChange < 0);
}
static void MutateTxAddOutMultiSig(CMutableTransaction& tx, const std::string& strInput)
{
// Separate into VALUE:REQUIRED:NUMKEYS:PUBKEY1:PUBKEY2:....[:FLAGS]
std::vector<std::string> vStrInputParts;
boost::split(vStrInputParts, strInput, boost::is_any_of(":"));
// Check that there are enough parameters
if (vStrInputParts.size()<3)
throw std::runtime_error("Not enough multisig parameters");
// Extract and validate VALUE
CAmount value = ExtractAndValidateValue(vStrInputParts[0]);
// Extract REQUIRED
uint32_t required = stoul(vStrInputParts[1]);
// Extract NUMKEYS
uint32_t numkeys = stoul(vStrInputParts[2]);
// Validate there are the correct number of pubkeys
if (vStrInputParts.size() < numkeys + 3)
throw std::runtime_error("incorrect number of multisig pubkeys");
if (required < 1 || required > 20 || numkeys < 1 || numkeys > 20 || numkeys < required)
throw std::runtime_error("multisig parameter mismatch. Required " \
+ std::to_string(required) + " of " + std::to_string(numkeys) + "signatures.");
// extract and validate PUBKEYs
std::vector<CPubKey> pubkeys;
for(int pos = 1; pos <= int(numkeys); pos++) {
CPubKey pubkey(ParseHex(vStrInputParts[pos + 2]));
if (!pubkey.IsFullyValid())
throw std::runtime_error("invalid TX output pubkey");
pubkeys.push_back(pubkey);
}
// Extract FLAGS
bool bSegWit = false;
bool bScriptHash = false;
if (vStrInputParts.size() == numkeys + 4) {
std::string flags = vStrInputParts.back();
bSegWit = (flags.find('W') != std::string::npos);
bScriptHash = (flags.find('S') != std::string::npos);
}
else if (vStrInputParts.size() > numkeys + 4) {
// Validate that there were no more parameters passed
throw std::runtime_error("Too many parameters");
}
CScript scriptPubKey = GetScriptForMultisig(required, pubkeys);
if (bSegWit) {
for (CPubKey& pubkey : pubkeys) {
if (!pubkey.IsCompressed()) {
throw std::runtime_error("Uncompressed pubkeys are not useable for SegWit outputs");
}
}
// Call GetScriptForWitness() to build a P2WSH scriptPubKey
scriptPubKey = GetScriptForWitness(scriptPubKey);
}
if (bScriptHash) {
if (scriptPubKey.size() > MAX_SCRIPT_ELEMENT_SIZE) {
throw std::runtime_error(strprintf(
"redeemScript exceeds size limit: %d > %d", scriptPubKey.size(), MAX_SCRIPT_ELEMENT_SIZE));
}
// Get the ID for the script, and then construct a P2SH destination for it.
scriptPubKey = GetScriptForDestination(CScriptID(scriptPubKey));
}
// construct TxOut, append to transaction output list
CTxOut txout(value, scriptPubKey);
tx.vout.push_back(txout);
}
