WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransaction &transaction, const CCoinControl *coinControl)
{
qint64 total = 0;
QList<SendCoinsRecipient> recipients = transaction.getRecipients();
std::vector<std::pair<CScript, int64_t> > vecSend;
if(recipients.empty())
{
return OK;
}
QSet<QString> setAddress; // Used to detect duplicates
int nAddresses = 0;
// Pre-check input data for validity
foreach(const SendCoinsRecipient &rcp, recipients)
{
if (rcp.paymentRequest.IsInitialized())
{ // PaymentRequest...
int64_t 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());
vecSend.push_back(std::pair<CScript, int64_t>(scriptPubKey, out.amount()));
}
if (subtotal <= 0)
{
return InvalidAmount;
}
total += subtotal;
}
else
{ // User-entered digibyte address / amount:
if(!validateAddress(rcp.address))
{
return InvalidAddress;
}
if(rcp.amount <= 0)
{
return InvalidAmount;
}
setAddress.insert(rcp.address);
++nAddresses;
CScript scriptPubKey;
scriptPubKey.SetDestination(CDigiByteAddress(rcp.address.toStdString()).Get());
vecSend.push_back(std::pair<CScript, int64_t>(scriptPubKey, rcp.amount));
total += rcp.amount;
}
}
if(setAddress.size() != nAddresses)
{
return DuplicateAddress;
}
qint64 nBalance = getBalance(coinControl);
if(total > nBalance)
{
return AmountExceedsBalance;
}
if((total + nTransactionFee) > nBalance)
{
transaction.setTransactionFee(nTransactionFee);
return SendCoinsReturn(AmountWithFeeExceedsBalance);
}
{
LOCK2(cs_main, wallet->cs_wallet);
transaction.newPossibleKeyChange(wallet);
int64_t nFeeRequired = 0;
std::string strFailReason;
CWalletTx *newTx = transaction.getTransaction();
CReserveKey *keyChange = transaction.getPossibleKeyChange();
bool fCreated = wallet->CreateTransaction(vecSend, *newTx, *keyChange, nFeeRequired, strFailReason, coinControl);
transaction.setTransactionFee(nFeeRequired);
if(!fCreated)
{
if((total + nFeeRequired) > nBalance)
{
return SendCoinsReturn(AmountWithFeeExceedsBalance);
}
emit message(tr("Send Coins"), QString::fromStdString(strFailReason),
CClientUIInterface::MSG_ERROR);
return TransactionCreationFailed;
}
}
return SendCoinsReturn(OK);
}
WalletModel::SendCoinsReturn WalletModel::sendCoins(const QString &txcomment, const QList<SendCoinsRecipient> &recipients)
{
qint64 total = 0;
QSet<QString> setAddress;
QString hex;
if(recipients.empty())
{
return OK;
}
// Pre-check input data for validity
foreach(const SendCoinsRecipient &rcp, recipients)
{
if(!validateAddress(rcp.address))
{
return InvalidAddress;
}
setAddress.insert(rcp.address);
if(rcp.amount <= 0)
{
return InvalidAmount;
}
total += rcp.amount;
}
if(recipients.size() > setAddress.size())
{
return DuplicateAddress;
}
if(total > getBalance())
{
return AmountExceedsBalance;
}
if((total + nTransactionFee) > getBalance())
{
return SendCoinsReturn(AmountWithFeeExceedsBalance, nTransactionFee);
}
{
LOCK2(cs_main, wallet->cs_wallet);
// Sendmany
std::vector<std::pair<CScript, int64> > vecSend;
foreach(const SendCoinsRecipient &rcp, recipients)
{
CScript scriptPubKey;
scriptPubKey.SetDestination(CBitcoinAddress(rcp.address.toStdString()).Get());
vecSend.push_back(make_pair(scriptPubKey, rcp.amount));
}
CWalletTx wtx;
CReserveKey keyChange(wallet);
int64 nFeeRequired = 0;
std::string strFailReason;
std::string strTxComment = txcomment.toStdString();
if (!strTxComment.empty())
strTxComment = "text:" + strTxComment;
bool fCreated = wallet->CreateTransaction(vecSend, wtx, keyChange, nFeeRequired, strFailReason, strTxComment);
if(!fCreated)
{
if((total + nFeeRequired) > wallet->GetBalance())
{
return SendCoinsReturn(AmountWithFeeExceedsBalance, nFeeRequired);
}
emit message(tr("Send Coins"), QString::fromStdString(strFailReason),
CClientUIInterface::MSG_ERROR);
return TransactionCreationFailed;
}
if(!uiInterface.ThreadSafeAskFee(nFeeRequired))
{
return Aborted;
}
if(!wallet->CommitTransaction(wtx, keyChange))
{
return TransactionCommitFailed;
}
hex = QString::fromStdString(wtx.GetHash().GetHex());
}
WalletModel::SendCoinsReturn WalletModel::sendCoins(WalletModelTransaction &transaction)
{
QByteArray transaction_array; /* store serialized transaction */
{
LOCK2(cs_main, wallet->cs_wallet);
CWalletTx *newTx = transaction.getTransaction();
// Store PaymentRequests in wtx.vOrderForm in wallet.
foreach(const SendCoinsRecipient &rcp, transaction.getRecipients())
{
if (rcp.paymentRequest.IsInitialized())
{
std::string key("PaymentRequest");
std::string value;
rcp.paymentRequest.SerializeToString(&value);
newTx->vOrderForm.push_back(make_pair(key, value));
}
else if (!rcp.message.isEmpty()) // Message from normal ziftrcoin:URI (ziftrcoin:Z23...?message=example)
newTx->vOrderForm.push_back(make_pair("Message", rcp.message.toStdString()));
}
CReserveKey *keyChange = transaction.getPossibleKeyChange();
if(!wallet->CommitTransaction(*newTx, *keyChange))
return TransactionCommitFailed;
CTransaction* t = (CTransaction*)newTx;
CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
ssTx << *t;
transaction_array.append(&(ssTx[0]), ssTx.size());
}
// Add addresses / update labels that we've sent to to the address book,
// and emit coinsSent signal for each recipient
foreach(const SendCoinsRecipient &rcp, transaction.getRecipients())
{
// Don't touch the address book when we have a payment request
if (!rcp.paymentRequest.IsInitialized())
{
std::string strAddress = rcp.address.toStdString();
CTxDestination dest = CBitcoinAddress(strAddress).Get();
std::string strLabel = rcp.label.toStdString();
{
LOCK(wallet->cs_wallet);
std::map<CTxDestination, CAddressBookData>::iterator mi = wallet->mapAddressBook.find(dest);
// Check if we have a new address or an updated label
if (mi == wallet->mapAddressBook.end())
{
wallet->SetAddressBook(dest, strLabel, "send");
}
else if (mi->second.name != strLabel)
{
wallet->SetAddressBook(dest, strLabel, ""); // "" means don't change purpose
}
}
}
emit coinsSent(wallet, rcp, transaction_array);
}
return SendCoinsReturn(OK);
}
WalletModel::SendCoinsReturn WalletModel::sendCoins(WalletModelTransaction &transaction)
{
QByteArray transaction_array; /* store serialized transaction */
{
LOCK2(cs_main, wallet->cs_wallet);
CWalletTx *newTx = transaction.getTransaction();
QList<SendCoinsRecipient> recipients = transaction.getRecipients();
Q_FOREACH(const SendCoinsRecipient &rcp, recipients)
{
if (rcp.paymentRequest.IsInitialized())
{
// Make sure any payment requests involved are still valid.
if (PaymentServer::verifyExpired(rcp.paymentRequest.getDetails())) {
return PaymentRequestExpired;
}
// Store PaymentRequests in wtx.vOrderForm in wallet.
std::string key("PaymentRequest");
std::string value;
rcp.paymentRequest.SerializeToString(&value);
newTx->vOrderForm.push_back(make_pair(key, value));
}
else if (!rcp.message.isEmpty()) // Message from normal dash:URI (dash:XyZ...?message=example)
{
newTx->vOrderForm.push_back(make_pair("Message", rcp.message.toStdString()));
}
}
CReserveKey *keyChange = transaction.getPossibleKeyChange();
if(!wallet->CommitTransaction(*newTx, *keyChange, g_connman.get(), recipients[0].fUseInstantSend ? NetMsgType::TXLOCKREQUEST : NetMsgType::TX))
return TransactionCommitFailed;
CTransaction* t = (CTransaction*)newTx;
CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
ssTx << *t;
transaction_array.append(&(ssTx[0]), ssTx.size());
}
// Add addresses / update labels that we've sent to to the address book,
// and emit coinsSent signal for each recipient
Q_FOREACH(const SendCoinsRecipient &rcp, transaction.getRecipients())
{
// Don't touch the address book when we have a payment request
if (!rcp.paymentRequest.IsInitialized())
{
std::string strAddress = rcp.address.toStdString();
CTxDestination dest = CBitcoinAddress(strAddress).Get();
std::string strLabel = rcp.label.toStdString();
{
LOCK(wallet->cs_wallet);
std::map<CTxDestination, CAddressBookData>::iterator mi = wallet->mapAddressBook.find(dest);
// Check if we have a new address or an updated label
if (mi == wallet->mapAddressBook.end())
{
wallet->SetAddressBook(dest, strLabel, "send");
}
else if (mi->second.name != strLabel)
{
wallet->SetAddressBook(dest, strLabel, ""); // "" means don't change purpose
}
}
}
Q_EMIT coinsSent(wallet, rcp, transaction_array);
}
checkBalanceChanged(); // update balance immediately, otherwise there could be a short noticeable delay until pollBalanceChanged hits
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->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->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::sendCoins(const QList<SendCoinsRecipient> &recipients, const CCoinControl *coinControl)
{
qint64 total = 0;
QSet<QString> setAddress;
QString hex;
if(recipients.empty())
{
return OK;
}
// Pre-check input data for validity
foreach(const SendCoinsRecipient &rcp, recipients)
{
if(!validateAddress(rcp.address))
{
return InvalidAddress;
}
setAddress.insert(rcp.address);
if(rcp.amount <= 0)
{
return InvalidAmount;
}
total += rcp.amount;
}
if(recipients.size() > setAddress.size())
{
return DuplicateAddress;
}
int64 nBalance = 0;
std::vector<COutput> vCoins;
wallet->AvailableCoins(vCoins, true, coinControl);
BOOST_FOREACH(const COutput& out, vCoins)
nBalance += out.tx->vout[out.i].nValue;
if(total > nBalance)
{
return AmountExceedsBalance;
}
if((total + nTransactionFee) > nBalance)
{
return SendCoinsReturn(AmountWithFeeExceedsBalance, nTransactionFee);
}
{
LOCK2(cs_main, wallet->cs_wallet);
// Sendmany
std::vector<std::pair<CScript, int64> > vecSend;
foreach(const SendCoinsRecipient &rcp, recipients)
{
CScript scriptPubKey;
scriptPubKey.SetDestination(CBitcoinAddress(rcp.address.toStdString()).Get());
vecSend.push_back(make_pair(scriptPubKey, rcp.amount));
}
CWalletTx wtx;
CReserveKey keyChange(wallet);
int64 nFeeRequired = 0;
bool fCreated = wallet->CreateTransaction(vecSend, wtx, keyChange, nFeeRequired, coinControl);
if(!fCreated)
{
if((total + nFeeRequired) > nBalance) // FIXME: could cause collisions in the future
{
return SendCoinsReturn(AmountWithFeeExceedsBalance, nFeeRequired);
}
return TransactionCreationFailed;
}
if(!uiInterface.ThreadSafeAskFee(nFeeRequired, tr("Sending...").toStdString()))
{
return Aborted;
}
if(!wallet->CommitTransaction(wtx, keyChange))
{
return TransactionCommitFailed;
}
hex = QString::fromStdString(wtx.GetHash().GetHex());
}