WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransaction &transaction, const CCoinControl& coinControl)
{
CAmount total = 0;
bool fSubtractFeeFromAmount = false;
bool fCoinJoin = false;
QList<SendCoinsRecipient> recipients = transaction.getRecipients();
std::vector<CRecipient> vecSend;
if(recipients.empty())
{
return OK;
}
QSet<QString> setAddress; // Used to detect duplicates
int nAddresses = 0;
// Pre-check input data for validity
for (const SendCoinsRecipient &rcp : recipients)
{
if (rcp.fCoinJoin)
fCoinJoin = true;
if (rcp.fSubtractFeeFromAmount)
fSubtractFeeFromAmount = true;
#ifdef ENABLE_BIP70
if (rcp.paymentRequest.IsInitialized())
{ // PaymentRequest...
CAmount subtotal = 0;
const payments::PaymentDetails& details = rcp.paymentRequest.getDetails();
for (int i = 0; i < details.outputs_size(); i++)
{
const payments::Output& out = details.outputs(i);
if (out.amount() <= 0) continue;
subtotal += out.amount();
const unsigned char* scriptStr = (const unsigned char*)out.script().data();
CScript scriptPubKey(scriptStr, scriptStr+out.script().size());
CAmount nAmount = out.amount();
CRecipient recipient = {scriptPubKey, nAmount, rcp.fSubtractFeeFromAmount};
vecSend.push_back(recipient);
}
if (subtotal <= 0)
{
return InvalidAmount;
}
total += subtotal;
}
else
#endif
{ // User-entered chaincoin address / amount:
if(!validateAddress(rcp.address))
{
return InvalidAddress;
}
if(rcp.amount <= 0)
{
return InvalidAmount;
}
setAddress.insert(rcp.address);
++nAddresses;
CScript scriptPubKey = GetScriptForDestination(DecodeDestination(rcp.address.toStdString()));
CRecipient recipient = {scriptPubKey, rcp.amount, rcp.fSubtractFeeFromAmount};
vecSend.push_back(recipient);
total += rcp.amount;
}
}
if(setAddress.size() != nAddresses)
{
return DuplicateAddress;
}
CAmount nBalance = m_wallet->getAvailableBalance(coinControl);
if(total > nBalance)
{
return AmountExceedsBalance;
}
{
CAmount nFeeRequired = 0;
int nChangePosRet = -1;
std::string strFailReason;
auto& newTx = transaction.getWtx();
newTx = m_wallet->createTransaction(vecSend, coinControl, true /* sign */, nChangePosRet, nFeeRequired, strFailReason, fCoinJoin);
transaction.setTransactionFee(nFeeRequired);
if (fSubtractFeeFromAmount && newTx)
transaction.reassignAmounts(nChangePosRet);
if(!newTx)
{
if(!fSubtractFeeFromAmount && (total + nFeeRequired) > nBalance)
{
return SendCoinsReturn(AmountWithFeeExceedsBalance);
}
Q_EMIT message(tr("Send Coins"), QString::fromStdString(strFailReason),
CClientUIInterface::MSG_ERROR);
return TransactionCreationFailed;
}
// reject absurdly high fee. (This can never happen because the
// wallet caps the fee at maxTxFee. This merely serves as a
// belt-and-suspenders check)
if (nFeeRequired > m_node.getMaxTxFee())
return AbsurdFee;
}
return SendCoinsReturn(OK);
}
WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransaction &transaction, const CCoinControl *coinControl)
{
CAmount total = 0;
bool fSubtractFeeFromAmount = false;
QList<SendCoinsRecipient> recipients = transaction.getRecipients();
std::vector<CRecipient> vecSend;
if(recipients.empty())
{
return OK;
}
// This should never really happen, yet another safety check, just in case.
if(wallet->IsLocked()) {
return TransactionCreationFailed;
}
QSet<QString> setAddress; // Used to detect duplicates
int nAddresses = 0;
// Pre-check input data for validity
Q_FOREACH(const SendCoinsRecipient &rcp, recipients)
{
if (rcp.fSubtractFeeFromAmount)
fSubtractFeeFromAmount = true;
if (rcp.paymentRequest.IsInitialized())
{ // PaymentRequest...
CAmount subtotal = 0;
const payments::PaymentDetails& details = rcp.paymentRequest.getDetails();
for (int i = 0; i < details.outputs_size(); i++)
{
const payments::Output& out = details.outputs(i);
if (out.amount() <= 0) continue;
subtotal += out.amount();
const unsigned char* scriptStr = (const unsigned char*)out.script().data();
CScript scriptPubKey(scriptStr, scriptStr+out.script().size());
CAmount nAmount = out.amount();
CRecipient recipient = {scriptPubKey, nAmount, rcp.fSubtractFeeFromAmount};
vecSend.push_back(recipient);
}
if (subtotal <= 0)
{
return InvalidAmount;
}
total += subtotal;
}
else
{ // User-entered dash address / amount:
if(!validateAddress(rcp.address))
{
return InvalidAddress;
}
if(rcp.amount <= 0)
{
return InvalidAmount;
}
setAddress.insert(rcp.address);
++nAddresses;
CScript scriptPubKey = GetScriptForDestination(CBitcoinAddress(rcp.address.toStdString()).Get());
CRecipient recipient = {scriptPubKey, rcp.amount, rcp.fSubtractFeeFromAmount};
vecSend.push_back(recipient);
total += rcp.amount;
}
}
if(setAddress.size() != nAddresses)
{
return DuplicateAddress;
}
CAmount nBalance = getBalance(coinControl);
if(total > nBalance)
{
return AmountExceedsBalance;
}
{
LOCK2(cs_main, wallet->cs_wallet);
transaction.newPossibleKeyChange(wallet);
CAmount nFeeRequired = 0;
int nChangePosRet = -1;
std::string strFailReason;
CWalletTx *newTx = transaction.getTransaction();
CReserveKey *keyChange = transaction.getPossibleKeyChange();
if(recipients[0].fUseInstantSend && total > sporkManager.GetSporkValue(SPORK_5_INSTANTSEND_MAX_VALUE)*COIN){
Q_EMIT message(tr("Send Coins"), tr("InstantSend doesn't support sending values that high yet. Transactions are currently limited to %1 DASH.").arg(sporkManager.GetSporkValue(SPORK_5_INSTANTSEND_MAX_VALUE)),
CClientUIInterface::MSG_ERROR);
return TransactionCreationFailed;
}
bool fCreated = wallet->CreateTransaction(vecSend, *newTx, *keyChange, nFeeRequired, nChangePosRet, strFailReason, coinControl, true, recipients[0].inputType, recipients[0].fUseInstantSend);
transaction.setTransactionFee(nFeeRequired);
if (fSubtractFeeFromAmount && fCreated)
transaction.reassignAmounts(nChangePosRet);
if(recipients[0].fUseInstantSend) {
if(newTx->tx->GetValueOut() > sporkManager.GetSporkValue(SPORK_5_INSTANTSEND_MAX_VALUE)*COIN) {
Q_EMIT message(tr("Send Coins"), tr("InstantSend doesn't support sending values that high yet. Transactions are currently limited to %1 DASH.").arg(sporkManager.GetSporkValue(SPORK_5_INSTANTSEND_MAX_VALUE)),
CClientUIInterface::MSG_ERROR);
return TransactionCreationFailed;
}
if(newTx->tx->vin.size() > CTxLockRequest::WARN_MANY_INPUTS) {
Q_EMIT message(tr("Send Coins"), tr("Used way too many inputs (>%1) for this InstantSend transaction, fees could be huge.").arg(CTxLockRequest::WARN_MANY_INPUTS),
CClientUIInterface::MSG_WARNING);
}
}
if(!fCreated)
{
if(!fSubtractFeeFromAmount && (total + nFeeRequired) > nBalance)
{
return SendCoinsReturn(AmountWithFeeExceedsBalance);
}
Q_EMIT message(tr("Send Coins"), QString::fromStdString(strFailReason),
CClientUIInterface::MSG_ERROR);
return TransactionCreationFailed;
}
// reject absurdly high fee. (This can never happen because the
// wallet caps the fee at maxTxFee. This merely serves as a
// belt-and-suspenders check)
if (nFeeRequired > maxTxFee)
return AbsurdFee;
}
return SendCoinsReturn(OK);
}
WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransaction& transaction, const CCoinControl* coinControl)
{
CAmount total = 0;
bool fSubtractFeeFromAmount = false;
QList<SendCoinsRecipient> recipients = transaction.getRecipients();
std::vector<CRecipient> vecSend;
if (recipients.empty()) {
return OK;
}
if (isAnonymizeOnlyUnlocked()) {
return AnonymizeOnlyUnlocked;
}
QSet<QString> setAddress; // Used to detect duplicates
int nAddresses = 0;
// Pre-check input data for validity
foreach (const SendCoinsRecipient& rcp, recipients) {
if (rcp.fSubtractFeeFromAmount)
fSubtractFeeFromAmount = true;
if (rcp.paymentRequest.IsInitialized()) { // PaymentRequest...
CAmount subtotal = 0;
const payments::PaymentDetails& details = rcp.paymentRequest.getDetails();
for (int i = 0; i < details.outputs_size(); i++) {
const payments::Output& out = details.outputs(i);
if (out.amount() <= 0) continue;
subtotal += out.amount();
const unsigned char* scriptStr = (const unsigned char*)out.script().data();
CScript scriptPubKey(scriptStr, scriptStr + out.script().size());
CAmount nAmount = out.amount();
CRecipient recipient = {scriptPubKey, nAmount, rcp.fSubtractFeeFromAmount};
vecSend.push_back(recipient);
}
if (subtotal <= 0) {
return InvalidAmount;
}
total += subtotal;
} else { // User-entered ion address / amount:
if (!validateAddress(rcp.address)) {
return InvalidAddress;
}
if (rcp.amount <= 0) {
return InvalidAmount;
}
setAddress.insert(rcp.address);
++nAddresses;
CScript scriptPubKey = GetScriptForDestination(DecodeDestination(rcp.address.toStdString()));
CRecipient recipient = {scriptPubKey, rcp.amount, rcp.fSubtractFeeFromAmount};
vecSend.push_back(recipient);
total += rcp.amount;
}
}
if (setAddress.size() != nAddresses) {
return DuplicateAddress;
}
CAmount nBalance = getBalance(coinControl);
if (total > nBalance) {
return AmountExceedsBalance;
}
{
LOCK2(cs_main, wallet->cs_wallet);
transaction.newPossibleKeyChange(wallet);
CAmount nFeeRequired = 0;
int nChangePosRet = -1;
std::string strFailReason;
CWalletTx* newTx = transaction.getTransaction();
CReserveKey* keyChange = transaction.getPossibleKeyChange();
if (recipients[0].useSwiftTX && total > GetSporkValue(SPORK_3_SWIFTTX_MAX_VALUE) * COIN) {
emit message(tr("Send Coins"), tr("SwiftX doesn't support sending values that high yet. Transactions are currently limited to %1 ION.").arg(GetSporkValue(SPORK_3_SWIFTTX_MAX_VALUE)),
CClientUIInterface::MSG_ERROR);
return TransactionCreationFailed;
}
bool fCreated = wallet->CreateTransaction(vecSend, *newTx, *keyChange, nFeeRequired, nChangePosRet, strFailReason, coinControl, recipients[0].inputType, recipients[0].useSwiftTX);
transaction.setTransactionFee(nFeeRequired);
if (fSubtractFeeFromAmount && fCreated)
transaction.reassignAmounts(nChangePosRet);
if (recipients[0].useSwiftTX && newTx->GetValueOut() > GetSporkValue(SPORK_3_SWIFTTX_MAX_VALUE) * COIN) {
emit message(tr("Send Coins"), tr("SwiftX doesn't support sending values that high yet. Transactions are currently limited to %1 ION.").arg(GetSporkValue(SPORK_3_SWIFTTX_MAX_VALUE)),
CClientUIInterface::MSG_ERROR);
return TransactionCreationFailed;
}
if (!fCreated) {
if (!fSubtractFeeFromAmount && (total + nFeeRequired) > nBalance) {
return SendCoinsReturn(AmountWithFeeExceedsBalance);
}
emit message(tr("Send Coins"), QString::fromStdString(strFailReason),
CClientUIInterface::MSG_ERROR);
return TransactionCreationFailed;
}
// reject insane fee
if (nFeeRequired > ::minRelayTxFee.GetFee(transaction.getTransactionSize()) * 10000)
return InsaneFee;
}
return SendCoinsReturn(OK);
}
WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransaction &transaction, const CCoinControl *coinControl)
{
CAmount total = 0;
bool fSubtractFeeFromAmount = false;
QList<SendCoinsRecipient> recipients = transaction.getRecipients();
std::vector<CRecipient> vecSend;
if(recipients.empty())
{
return OK;
}
QSet<QString> setAddress; // Used to detect duplicates
int nAddresses = 0;
// Pre-check input data for validity
Q_FOREACH(const SendCoinsRecipient &rcp, recipients)
{
if (rcp.fSubtractFeeFromAmount)
fSubtractFeeFromAmount = true;
if (rcp.paymentRequest.IsInitialized())
{ // PaymentRequest...
CAmount subtotal = 0;
const payments::PaymentDetails& details = rcp.paymentRequest.getDetails();
for (int i = 0; i < details.outputs_size(); i++)
{
const payments::Output& out = details.outputs(i);
if (out.amount() <= 0) continue;
subtotal += out.amount();
const unsigned char* scriptStr = (const unsigned char*)out.script().data();
CScript scriptPubKey(scriptStr, scriptStr+out.script().size());
CAmount nAmount = out.amount();
CRecipient recipient = {scriptPubKey, nAmount, rcp.fSubtractFeeFromAmount};
vecSend.push_back(recipient);
}
if (subtotal <= 0)
{
return InvalidAmount;
}
total += subtotal;
}
else
{ // User-entered bitcoin address / amount:
if(!validateAddress(rcp.address))
{
return InvalidAddress;
}
if(rcp.amount <= 0)
{
return InvalidAmount;
}
setAddress.insert(rcp.address);
++nAddresses;
CScript scriptPubKey = GetScriptForDestination(CBitcoinAddress(rcp.address.toStdString()).Get());
CRecipient recipient = {scriptPubKey, rcp.amount, rcp.fSubtractFeeFromAmount};
vecSend.push_back(recipient);
total += rcp.amount;
}
}
if(setAddress.size() != nAddresses)
{
return DuplicateAddress;
}
CAmount nBalance = getBalance(coinControl);
if(total > nBalance)
{
return AmountExceedsBalance;
}
{
LOCK2(cs_main, wallet->cs_wallet);
transaction.newPossibleKeyChange(wallet);
CAmount nFeeRequired = 0;
int nChangePosRet = -1;
std::string strFailReason;
CWalletTx *newTx = transaction.getTransaction();
CReserveKey *keyChange = transaction.getPossibleKeyChange();
bool fCreated = wallet->CreateTransaction(vecSend, *newTx, *keyChange, nFeeRequired, nChangePosRet, strFailReason, coinControl);
transaction.setTransactionFee(nFeeRequired);
if (fSubtractFeeFromAmount && fCreated)
transaction.reassignAmounts(nChangePosRet);
if(!fCreated)
{
if(!fSubtractFeeFromAmount && (total + nFeeRequired) > nBalance)
{
return SendCoinsReturn(AmountWithFeeExceedsBalance);
}
Q_EMIT message(tr("Send Coins"), QString::fromStdString(strFailReason),
CClientUIInterface::MSG_ERROR);
return TransactionCreationFailed;
}
// reject absurdly high fee > 0.1 bitcoin
if (nFeeRequired > 10000000)
return AbsurdFee;
}
return SendCoinsReturn(OK);
}
