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()); }