Bitcoin Core  22.99.0
P2P Digital Currency
psbtoperationsdialog.cpp
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1 // Copyright (c) 2011-2020 The Bitcoin Core developers
2 // Distributed under the MIT software license, see the accompanying
3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
4 
6 
7 #include <core_io.h>
8 #include <interfaces/node.h>
9 #include <key_io.h>
10 #include <node/psbt.h>
11 #include <policy/policy.h>
12 #include <qt/bitcoinunits.h>
13 #include <qt/forms/ui_psbtoperationsdialog.h>
14 #include <qt/guiutil.h>
15 #include <qt/optionsmodel.h>
16 #include <util/strencodings.h>
17 
18 #include <iostream>
19 
20 
22  QWidget* parent, WalletModel* wallet_model, ClientModel* client_model) : QDialog(parent, GUIUtil::dialog_flags),
23  m_ui(new Ui::PSBTOperationsDialog),
24  m_wallet_model(wallet_model),
25  m_client_model(client_model)
26 {
27  m_ui->setupUi(this);
28  setWindowTitle("PSBT Operations");
29 
30  connect(m_ui->signTransactionButton, &QPushButton::clicked, this, &PSBTOperationsDialog::signTransaction);
31  connect(m_ui->broadcastTransactionButton, &QPushButton::clicked, this, &PSBTOperationsDialog::broadcastTransaction);
32  connect(m_ui->copyToClipboardButton, &QPushButton::clicked, this, &PSBTOperationsDialog::copyToClipboard);
33  connect(m_ui->saveButton, &QPushButton::clicked, this, &PSBTOperationsDialog::saveTransaction);
34 
35  connect(m_ui->closeButton, &QPushButton::clicked, this, &PSBTOperationsDialog::close);
36 
37  m_ui->signTransactionButton->setEnabled(false);
38  m_ui->broadcastTransactionButton->setEnabled(false);
39 }
40 
42 {
43  delete m_ui;
44 }
45 
47 {
48  m_transaction_data = psbtx;
49 
50  bool complete = FinalizePSBT(psbtx); // Make sure all existing signatures are fully combined before checking for completeness.
51  if (m_wallet_model) {
52  size_t n_could_sign;
53  TransactionError err = m_wallet_model->wallet().fillPSBT(SIGHASH_ALL, false /* sign */, true /* bip32derivs */, &n_could_sign, m_transaction_data, complete);
54  if (err != TransactionError::OK) {
55  showStatus(tr("Failed to load transaction: %1")
56  .arg(QString::fromStdString(TransactionErrorString(err).translated)),
58  return;
59  }
60  m_ui->signTransactionButton->setEnabled(!complete && !m_wallet_model->wallet().privateKeysDisabled() && n_could_sign > 0);
61  } else {
62  m_ui->signTransactionButton->setEnabled(false);
63  }
64 
65  m_ui->broadcastTransactionButton->setEnabled(complete);
66 
68 }
69 
71 {
72  bool complete;
73  size_t n_signed;
74 
76 
77  TransactionError err = m_wallet_model->wallet().fillPSBT(SIGHASH_ALL, true /* sign */, true /* bip32derivs */, &n_signed, m_transaction_data, complete);
78 
79  if (err != TransactionError::OK) {
80  showStatus(tr("Failed to sign transaction: %1")
81  .arg(QString::fromStdString(TransactionErrorString(err).translated)), StatusLevel::ERR);
82  return;
83  }
84 
86 
87  if (!complete && !ctx.isValid()) {
88  showStatus(tr("Cannot sign inputs while wallet is locked."), StatusLevel::WARN);
89  } else if (!complete && n_signed < 1) {
90  showStatus(tr("Could not sign any more inputs."), StatusLevel::WARN);
91  } else if (!complete) {
92  showStatus(tr("Signed %1 inputs, but more signatures are still required.").arg(n_signed),
94  } else {
95  showStatus(tr("Signed transaction successfully. Transaction is ready to broadcast."),
97  m_ui->broadcastTransactionButton->setEnabled(true);
98  }
99 }
100 
102 {
105  // This is never expected to fail unless we were given a malformed PSBT
106  // (e.g. with an invalid signature.)
107  showStatus(tr("Unknown error processing transaction."), StatusLevel::ERR);
108  return;
109  }
110 
112  std::string err_string;
114  *m_client_model->node().context(), tx, err_string, DEFAULT_MAX_RAW_TX_FEE_RATE.GetFeePerK(), /* relay */ true, /* await_callback */ false);
115 
116  if (error == TransactionError::OK) {
117  showStatus(tr("Transaction broadcast successfully! Transaction ID: %1")
118  .arg(QString::fromStdString(tx->GetHash().GetHex())), StatusLevel::INFO);
119  } else {
120  showStatus(tr("Transaction broadcast failed: %1")
121  .arg(QString::fromStdString(TransactionErrorString(error).translated)), StatusLevel::ERR);
122  }
123 }
124 
127  ssTx << m_transaction_data;
128  GUIUtil::setClipboard(EncodeBase64(ssTx.str()).c_str());
129  showStatus(tr("PSBT copied to clipboard."), StatusLevel::INFO);
130 }
131 
134  ssTx << m_transaction_data;
135 
136  QString selected_filter;
137  QString filename_suggestion = "";
138  bool first = true;
139  for (const CTxOut& out : m_transaction_data.tx->vout) {
140  if (!first) {
141  filename_suggestion.append("-");
142  }
143  CTxDestination address;
144  ExtractDestination(out.scriptPubKey, address);
146  QString address_str = QString::fromStdString(EncodeDestination(address));
147  filename_suggestion.append(address_str + "-" + amount);
148  first = false;
149  }
150  filename_suggestion.append(".psbt");
151  QString filename = GUIUtil::getSaveFileName(this,
152  tr("Save Transaction Data"), filename_suggestion,
153  //: Expanded name of the binary PSBT file format. See: BIP 174.
154  tr("Partially Signed Transaction (Binary)") + QLatin1String(" (*.psbt)"), &selected_filter);
155  if (filename.isEmpty()) {
156  return;
157  }
158  std::ofstream out(filename.toLocal8Bit().data(), std::ofstream::out | std::ofstream::binary);
159  out << ssTx.str();
160  out.close();
161  showStatus(tr("PSBT saved to disk."), StatusLevel::INFO);
162 }
163 
165  m_ui->transactionDescription->setText(QString::fromStdString(renderTransaction(m_transaction_data)));
167 }
168 
170 {
171  QString tx_description = "";
172  CAmount totalAmount = 0;
173  for (const CTxOut& out : psbtx.tx->vout) {
174  CTxDestination address;
175  ExtractDestination(out.scriptPubKey, address);
176  totalAmount += out.nValue;
177  tx_description.append(tr(" * Sends %1 to %2")
179  .arg(QString::fromStdString(EncodeDestination(address))));
180  tx_description.append("<br>");
181  }
182 
183  PSBTAnalysis analysis = AnalyzePSBT(psbtx);
184  tx_description.append(" * ");
185  if (!*analysis.fee) {
186  // This happens if the transaction is missing input UTXO information.
187  tx_description.append(tr("Unable to calculate transaction fee or total transaction amount."));
188  } else {
189  tx_description.append(tr("Pays transaction fee: "));
190  tx_description.append(BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, *analysis.fee));
191 
192  // add total amount in all subdivision units
193  tx_description.append("<hr />");
194  QStringList alternativeUnits;
196  {
198  alternativeUnits.append(BitcoinUnits::formatHtmlWithUnit(u, totalAmount));
199  }
200  }
201  tx_description.append(QString("<b>%1</b>: <b>%2</b>").arg(tr("Total Amount"))
203  tx_description.append(QString("<br /><span style='font-size:10pt; font-weight:normal;'>(=%1)</span>")
204  .arg(alternativeUnits.join(" " + tr("or") + " ")));
205  }
206 
207  size_t num_unsigned = CountPSBTUnsignedInputs(psbtx);
208  if (num_unsigned > 0) {
209  tx_description.append("<br><br>");
210  tx_description.append(tr("Transaction has %1 unsigned inputs.").arg(QString::number(num_unsigned)));
211  }
212 
213  return tx_description.toStdString();
214 }
215 
216 void PSBTOperationsDialog::showStatus(const QString &msg, StatusLevel level) {
217  m_ui->statusBar->setText(msg);
218  switch (level) {
219  case StatusLevel::INFO: {
220  m_ui->statusBar->setStyleSheet("QLabel { background-color : lightgreen }");
221  break;
222  }
223  case StatusLevel::WARN: {
224  m_ui->statusBar->setStyleSheet("QLabel { background-color : orange }");
225  break;
226  }
227  case StatusLevel::ERR: {
228  m_ui->statusBar->setStyleSheet("QLabel { background-color : red }");
229  break;
230  }
231  }
232  m_ui->statusBar->show();
233 }
234 
236  if (!m_wallet_model) {
237  return 0;
238  }
239 
240  size_t n_signed;
241  bool complete;
242  TransactionError err = m_wallet_model->wallet().fillPSBT(SIGHASH_ALL, false /* sign */, false /* bip32derivs */, &n_signed, m_transaction_data, complete);
243 
244  if (err != TransactionError::OK) {
245  return 0;
246  }
247  return n_signed;
248 }
249 
251  PSBTAnalysis analysis = AnalyzePSBT(psbtx);
252  size_t n_could_sign = couldSignInputs(psbtx);
253 
254  switch (analysis.next) {
255  case PSBTRole::UPDATER: {
256  showStatus(tr("Transaction is missing some information about inputs."), StatusLevel::WARN);
257  break;
258  }
259  case PSBTRole::SIGNER: {
260  QString need_sig_text = tr("Transaction still needs signature(s).");
262  if (!m_wallet_model) {
263  need_sig_text += " " + tr("(But no wallet is loaded.)");
264  level = StatusLevel::WARN;
265  } else if (m_wallet_model->wallet().privateKeysDisabled()) {
266  need_sig_text += " " + tr("(But this wallet cannot sign transactions.)");
267  level = StatusLevel::WARN;
268  } else if (n_could_sign < 1) {
269  need_sig_text += " " + tr("(But this wallet does not have the right keys.)"); // XXX wording
270  level = StatusLevel::WARN;
271  }
272  showStatus(need_sig_text, level);
273  break;
274  }
275  case PSBTRole::FINALIZER:
276  case PSBTRole::EXTRACTOR: {
277  showStatus(tr("Transaction is fully signed and ready for broadcast."), StatusLevel::INFO);
278  break;
279  }
280  default: {
281  showStatus(tr("Transaction status is unknown."), StatusLevel::ERR);
282  break;
283  }
284  }
285 }
PSBTOperationsDialog::updateTransactionDisplay
void updateTransactionDisplay()
Definition: psbtoperationsdialog.cpp:164
policy.h
FinalizePSBT
bool FinalizePSBT(PartiallySignedTransaction &psbtx)
Finalizes a PSBT if possible, combining partial signatures.
Definition: psbt.cpp:318
WalletModel
Interface to Bitcoin wallet from Qt view code.
Definition: walletmodel.h:51
TransactionErrorString
bilingual_str TransactionErrorString(const TransactionError err)
Definition: error.cpp:11
psbt.h
BitcoinUnits::formatWithUnit
static QString formatWithUnit(int unit, const CAmount &amount, bool plussign=false, SeparatorStyle separators=SeparatorStyle::STANDARD)
Format as string (with unit)
Definition: bitcoinunits.cpp:150
key_io.h
PSBTOperationsDialog::StatusLevel::ERR
@ ERR
PSBTOperationsDialog::couldSignInputs
size_t couldSignInputs(const PartiallySignedTransaction &psbtx)
Definition: psbtoperationsdialog.cpp:235
PSBTAnalysis
Holds the results of AnalyzePSBT (miscellaneous information about a PSBT)
Definition: psbt.h:29
DEFAULT_MAX_RAW_TX_FEE_RATE
static const CFeeRate DEFAULT_MAX_RAW_TX_FEE_RATE
Maximum fee rate for sendrawtransaction and testmempoolaccept RPC calls.
Definition: transaction.h:25
PSBTOperationsDialog::PSBTOperationsDialog
PSBTOperationsDialog(QWidget *parent, WalletModel *walletModel, ClientModel *clientModel)
Definition: psbtoperationsdialog.cpp:21
PSBTAnalysis::fee
std::optional< CAmount > fee
Amount of fee being paid by the transaction.
Definition: psbt.h:32
ClientModel::node
interfaces::Node & node() const
Definition: clientmodel.h:55
PSBTRole::UPDATER
@ UPDATER
PSBTOperationsDialog::m_transaction_data
PartiallySignedTransaction m_transaction_data
Definition: psbtoperationsdialog.h:37
GUIUtil
Utility functions used by the Bitcoin Qt UI.
Definition: bitcoingui.h:59
PSBTOperationsDialog::StatusLevel::INFO
@ INFO
BitcoinUnits::formatHtmlWithUnit
static QString formatHtmlWithUnit(int unit, const CAmount &amount, bool plussign=false, SeparatorStyle separators=SeparatorStyle::STANDARD)
Format as HTML string (with unit)
Definition: bitcoinunits.cpp:155
MakeTransactionRef
static CTransactionRef MakeTransactionRef(Tx &&txIn)
Definition: transaction.h:387
EncodeBase64
std::string EncodeBase64(Span< const unsigned char > input)
Definition: strencodings.cpp:130
FinalizeAndExtractPSBT
bool FinalizeAndExtractPSBT(PartiallySignedTransaction &psbtx, CMutableTransaction &result)
Finalizes a PSBT if possible, and extracts it to a CMutableTransaction if it could be finalized.
Definition: psbt.cpp:333
CTransactionRef
std::shared_ptr< const CTransaction > CTransactionRef
Definition: transaction.h:386
WalletModel::requestUnlock
UnlockContext requestUnlock()
Definition: walletmodel.cpp:433
PSBTOperationsDialog::m_wallet_model
WalletModel * m_wallet_model
Definition: psbtoperationsdialog.h:38
GUIUtil::dialog_flags
constexpr auto dialog_flags
Definition: guiutil.h:60
core_io.h
GUIUtil::setClipboard
void setClipboard(const QString &str)
Definition: guiutil.cpp:645
PSBTAnalysis::next
PSBTRole next
Which of the BIP 174 roles needs to handle the transaction next.
Definition: psbt.h:34
interfaces::Node::context
virtual NodeContext * context()
Get and set internal node context.
Definition: node.h:228
CTxOut::nValue
CAmount nValue
Definition: transaction.h:131
fsbridge::ofstream
fs::ofstream ofstream
Definition: fs.h:225
strencodings.h
PSBTOperationsDialog::showStatus
void showStatus(const QString &msg, StatusLevel level)
Definition: psbtoperationsdialog.cpp:216
PSBTOperationsDialog::openWithPSBT
void openWithPSBT(PartiallySignedTransaction psbtx)
Definition: psbtoperationsdialog.cpp:46
PSBTOperationsDialog::renderTransaction
std::string renderTransaction(const PartiallySignedTransaction &psbtx)
Definition: psbtoperationsdialog.cpp:169
ClientModel::getOptionsModel
OptionsModel * getOptionsModel()
Definition: clientmodel.cpp:182
TransactionError
TransactionError
Definition: error.h:22
PSBTOperationsDialog::showTransactionStatus
void showTransactionStatus(const PartiallySignedTransaction &psbtx)
Definition: psbtoperationsdialog.cpp:250
WalletModel::wallet
interfaces::Wallet & wallet() const
Definition: walletmodel.h:144
BitcoinUnits::availableUnits
static QList< Unit > availableUnits()
Get list of units, for drop-down box.
Definition: bitcoinunits.cpp:21
AnalyzePSBT
PSBTAnalysis AnalyzePSBT(PartiallySignedTransaction psbtx)
Provides helpful miscellaneous information about where a PSBT is in the signing workflow.
Definition: psbt.cpp:15
CTxDestination
std::variant< CNoDestination, PKHash, ScriptHash, WitnessV0ScriptHash, WitnessV0KeyHash, WitnessV1Taproot, WitnessUnknown > CTxDestination
A txout script template with a specific destination.
Definition: standard.h:157
CTxOut
An output of a transaction.
Definition: transaction.h:128
PSBTRole::SIGNER
@ SIGNER
CTxOut::scriptPubKey
CScript scriptPubKey
Definition: transaction.h:132
node.h
PSBTOperationsDialog::StatusLevel
StatusLevel
Definition: psbtoperationsdialog.h:41
PartiallySignedTransaction::tx
std::optional< CMutableTransaction > tx
Definition: psbt.h:393
PSBTOperationsDialog::broadcastTransaction
void broadcastTransaction()
Definition: psbtoperationsdialog.cpp:101
CAmount
int64_t CAmount
Amount in satoshis (Can be negative)
Definition: amount.h:12
guiutil.h
PSBTOperationsDialog::StatusLevel::WARN
@ WARN
ExtractDestination
bool ExtractDestination(const CScript &scriptPubKey, CTxDestination &addressRet)
Parse a standard scriptPubKey for the destination address.
Definition: standard.cpp:213
PSBTRole::EXTRACTOR
@ EXTRACTOR
CountPSBTUnsignedInputs
size_t CountPSBTUnsignedInputs(const PartiallySignedTransaction &psbt)
Counts the unsigned inputs of a PSBT.
Definition: psbt.cpp:202
GUIUtil::getSaveFileName
QString getSaveFileName(QWidget *parent, const QString &caption, const QString &dir, const QString &filter, QString *selectedSuffixOut)
Get save filename, mimics QFileDialog::getSaveFileName, except that it appends a default suffix when ...
Definition: guiutil.cpp:286
BroadcastTransaction
TransactionError BroadcastTransaction(NodeContext &node, const CTransactionRef tx, std::string &err_string, const CAmount &max_tx_fee, bool relay, bool wait_callback)
Submit a transaction to the mempool and (optionally) relay it to all P2P peers.
Definition: transaction.cpp:32
ClientModel
Model for Bitcoin network client.
Definition: clientmodel.h:47
SIGHASH_ALL
@ SIGHASH_ALL
Definition: interpreter.h:27
Ui
Definition: addressbookpage.h:14
PSBTRole::FINALIZER
@ FINALIZER
PSBTOperationsDialog::signTransaction
void signTransaction()
Definition: psbtoperationsdialog.cpp:70
WalletModel::UnlockContext
Definition: walletmodel.h:114
OptionsModel::getDisplayUnit
int getDisplayUnit() const
Definition: optionsmodel.h:88
PartiallySignedTransaction
A version of CTransaction with the PSBT format.
Definition: psbt.h:391
TransactionError::OK
@ OK
No error.
PSBTOperationsDialog::copyToClipboard
void copyToClipboard()
Definition: psbtoperationsdialog.cpp:125
BitcoinUnits::Unit
Unit
Bitcoin units.
Definition: bitcoinunits.h:41
PSBTOperationsDialog::~PSBTOperationsDialog
~PSBTOperationsDialog()
Definition: psbtoperationsdialog.cpp:41
bitcoinunits.h
PSBTOperationsDialog::m_client_model
ClientModel * m_client_model
Definition: psbtoperationsdialog.h:39
CDataStream
Double ended buffer combining vector and stream-like interfaces.
Definition: streams.h:204
SER_NETWORK
@ SER_NETWORK
Definition: serialize.h:138
optionsmodel.h
error
bool error(const char *fmt, const Args &... args)
Definition: system.h:49
CMutableTransaction
A mutable version of CTransaction.
Definition: transaction.h:344
CFeeRate::GetFeePerK
CAmount GetFeePerK() const
Return the fee in satoshis for a size of 1000 bytes.
Definition: feerate.h:56
CDataStream::str
std::string str() const
Definition: streams.h:242
psbtoperationsdialog.h
interfaces::Wallet::fillPSBT
virtual TransactionError fillPSBT(int sighash_type, bool sign, bool bip32derivs, size_t *n_signed, PartiallySignedTransaction &psbtx, bool &complete)=0
Fill PSBT.
interfaces::Wallet::privateKeysDisabled
virtual bool privateKeysDisabled()=0
PSBTOperationsDialog::saveTransaction
void saveTransaction()
Definition: psbtoperationsdialog.cpp:132
PSBTOperationsDialog::m_ui
Ui::PSBTOperationsDialog * m_ui
Definition: psbtoperationsdialog.h:36
EncodeDestination
std::string EncodeDestination(const CTxDestination &dest)
Definition: key_io.cpp:256
ctx
static secp256k1_context * ctx
Definition: tests.c:42
PROTOCOL_VERSION
static const int PROTOCOL_VERSION
network protocol versioning
Definition: version.h:12
BitcoinUnits::BTC
@ BTC
Definition: bitcoinunits.h:43
BitcoinUnits::format
static QString format(int unit, const CAmount &amount, bool plussign=false, SeparatorStyle separators=SeparatorStyle::STANDARD, bool justify=false)
Format as string.
Definition: bitcoinunits.cpp:103
PSBTOperationsDialog
Dialog showing transaction details.
Definition: psbtoperationsdialog.h:19