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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

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1// Copyright (c) 2011-present 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
5#include <qt/psbtoperationsdialog.h>
6
7#include <common/messages.h>
8#include <core_io.h>
9#include <interfaces/node.h>
10#include <key_io.h>
11#include <node/psbt.h>
12#include <node/types.h>
13#include <policy/policy.h>
14#include <qt/bitcoinunits.h>
15#include <qt/forms/ui_psbtoperationsdialog.h>
16#include <qt/guiutil.h>
17#include <qt/optionsmodel.h>
18#include <util/fs.h>
19#include <util/strencodings.h>
20
21#include <fstream>
22#include <iostream>
23#include <string>
24
25using common::TransactionErrorString;
26using node::AnalyzePSBT;
27using node::DEFAULT_MAX_RAW_TX_FEE_RATE;
28using node::PSBTAnalysis;
29using node::TransactionError;
30
31PSBTOperationsDialog::PSBTOperationsDialog(
32    QWidget* parent, WalletModel* wallet_model, ClientModel* client_model) : QDialog(parent, GUIUtil::dialog_flags),
33                                                                             m_ui(new Ui::PSBTOperationsDialog),
34                                                                             m_wallet_model(wallet_model),
35                                                                             m_client_model(client_model)
36{
37    m_ui->setupUi(this);
38
39    connect(m_ui->signTransactionButton, &QPushButton::clicked, this, &PSBTOperationsDialog::signTransaction);
40    connect(m_ui->broadcastTransactionButton, &QPushButton::clicked, this, &PSBTOperationsDialog::broadcastTransaction);
41    connect(m_ui->copyToClipboardButton, &QPushButton::clicked, this, &PSBTOperationsDialog::copyToClipboard);
42    connect(m_ui->saveButton, &QPushButton::clicked, this, &PSBTOperationsDialog::saveTransaction);
43
44    connect(m_ui->closeButton, &QPushButton::clicked, this, &PSBTOperationsDialog::close);
45
46    m_ui->signTransactionButton->setEnabled(false);
47    m_ui->broadcastTransactionButton->setEnabled(false);
48}
49
50PSBTOperationsDialog::~PSBTOperationsDialog()
51{
52    delete m_ui;
53}
54
55void PSBTOperationsDialog::openWithPSBT(PartiallySignedTransaction psbtx)
56{
57    m_transaction_data = psbtx;
58
59    bool complete = FinalizePSBT(psbtx); // Make sure all existing signatures are fully combined before checking for completeness.
60    if (m_wallet_model) {
61        size_t n_could_sign;
62        const auto err{m_wallet_model->wallet().fillPSBT({.sign = false, .bip32_derivs= true}, &n_could_sign, *m_transaction_data, complete)};
63        if (err) {
64            showStatus(tr("Failed to load transaction: %1")
65                           .arg(QString::fromStdString(PSBTErrorString(*err).translated)),
66                       StatusLevel::Error);
67            return;
68        }
69        m_ui->signTransactionButton->setEnabled(!complete && !m_wallet_model->wallet().privateKeysDisabled() && n_could_sign > 0);
70    } else {
71        m_ui->signTransactionButton->setEnabled(false);
72    }
73
74    m_ui->broadcastTransactionButton->setEnabled(complete);
75
76    updateTransactionDisplay();
77}
78
79void PSBTOperationsDialog::signTransaction()
80{
81    bool complete;
82    size_t n_signed;
83
84    WalletModel::UnlockContext ctx(m_wallet_model->requestUnlock());
85
86    const auto err{m_wallet_model->wallet().fillPSBT({.sign = true, .bip32_derivs = true}, &n_signed, *m_transaction_data, complete)};
87
88    if (err) {
89        showStatus(tr("Failed to sign transaction: %1")
90            .arg(QString::fromStdString(PSBTErrorString(*err).translated)), StatusLevel::Error);
91        return;
92    }
93
94    updateTransactionDisplay();
95
96    if (!complete && !ctx.isValid()) {
97        showStatus(tr("Cannot sign inputs while wallet is locked."), StatusLevel::Warn);
98    } else if (!complete && n_signed < 1) {
99        showStatus(tr("Could not sign any more inputs."), StatusLevel::Warn);
100    } else if (!complete) {
101        showStatus(tr("Signed %n input(s), but more signatures are still required.", "", n_signed),
102            StatusLevel::Info);
103    } else {
104        showStatus(tr("Signed transaction successfully. Transaction is ready to broadcast."),
105            StatusLevel::Info);
106        m_ui->broadcastTransactionButton->setEnabled(true);
107    }
108}
109
110void PSBTOperationsDialog::broadcastTransaction()
111{
112    CMutableTransaction mtx;
113    if (!FinalizeAndExtractPSBT(*m_transaction_data, mtx)) {
114        // This is never expected to fail unless we were given a malformed PSBT
115        // (e.g. with an invalid signature.)
116        showStatus(tr("Unknown error processing transaction."), StatusLevel::Error);
117        return;
118    }
119
120    CTransactionRef tx = MakeTransactionRef(mtx);
121    std::string err_string;
122    TransactionError error =
123        m_client_model->node().broadcastTransaction(tx, DEFAULT_MAX_RAW_TX_FEE_RATE.GetFeePerK(), err_string);
124
125    if (error == TransactionError::OK) {
126        showStatus(tr("Transaction broadcast successfully! Transaction ID: %1")
127            .arg(QString::fromStdString(tx->GetHash().GetHex())), StatusLevel::Info);
128    } else {
129        showStatus(tr("Transaction broadcast failed: %1")
130            .arg(QString::fromStdString(TransactionErrorString(error).translated)), StatusLevel::Error);
131    }
132}
133
134void PSBTOperationsDialog::copyToClipboard() {
135    DataStream ssTx{};
136    ssTx << *m_transaction_data;
137    GUIUtil::setClipboard(EncodeBase64(ssTx.str()).c_str());
138    showStatus(tr("PSBT copied to clipboard."), StatusLevel::Info);
139}
140
141void PSBTOperationsDialog::saveTransaction() {
142    DataStream ssTx{};
143    ssTx << *m_transaction_data;
144
145    QString selected_filter;
146    QString filename_suggestion = "";
147    bool first = true;
148    for (const PSBTOutput& out : m_transaction_data->outputs) {
149        if (!first) {
150            filename_suggestion.append("-");
151        }
152        CTxDestination address;
153        ExtractDestination(out.script, address);
154        QString amount = BitcoinUnits::format(m_client_model->getOptionsModel()->getDisplayUnit(), out.amount);
155        QString address_str = QString::fromStdString(EncodeDestination(address));
156        filename_suggestion.append(address_str + "-" + amount);
157        first = false;
158    }
159    filename_suggestion.append(".psbt");
160    QString filename = GUIUtil::getSaveFileName(this,
161        tr("Save Transaction Data"), filename_suggestion,
162        //: Expanded name of the binary PSBT file format. See: BIP 174.
163        tr("Partially Signed Transaction (Binary)") + QLatin1String(" (*.psbt)"), &selected_filter);
164    if (filename.isEmpty()) {
165        return;
166    }
167    std::ofstream out{filename.toLocal8Bit().data(), std::ofstream::out | std::ofstream::binary};
168    out << ssTx.str();
169    out.close();
170    showStatus(tr("PSBT saved to disk."), StatusLevel::Info);
171}
172
173void PSBTOperationsDialog::updateTransactionDisplay() {
174    m_ui->transactionDescription->setText(renderTransaction(*m_transaction_data));
175    showTransactionStatus(*m_transaction_data);
176}
177
178QString PSBTOperationsDialog::renderTransaction(const PartiallySignedTransaction &psbtx)
179{
180    QString tx_description;
181    QLatin1String bullet_point(" * ");
182    CAmount totalAmount = 0;
183    for (const PSBTOutput& out : psbtx.outputs) {
184        CTxDestination address;
185        ExtractDestination(out.script, address);
186        totalAmount += out.amount;
187        tx_description.append(bullet_point).append(tr("Sends %1 to %2")
188            .arg(BitcoinUnits::formatWithUnit(BitcoinUnit::BTC, out.amount))
189            .arg(QString::fromStdString(EncodeDestination(address))));
190        // Check if the address is one of ours
191        if (m_wallet_model != nullptr && m_wallet_model->wallet().txoutIsMine(CTxOut(out.amount, out.script))) tx_description.append(" (" + tr("own address") + ")");
192        tx_description.append("<br>");
193    }
194
195    PSBTAnalysis analysis = AnalyzePSBT(psbtx);
196    tx_description.append(bullet_point);
197    if (!*analysis.fee) {
198        // This happens if the transaction is missing input UTXO information.
199        tx_description.append(tr("Unable to calculate transaction fee or total transaction amount."));
200    } else {
201        tx_description.append(tr("Pays transaction fee: "));
202        tx_description.append(BitcoinUnits::formatWithUnit(BitcoinUnit::BTC, *analysis.fee));
203
204        // add total amount in all subdivision units
205        tx_description.append("<hr />");
206        QStringList alternativeUnits;
207        for (const BitcoinUnits::Unit u : BitcoinUnits::availableUnits())
208        {
209            if(u != m_client_model->getOptionsModel()->getDisplayUnit()) {
210                alternativeUnits.append(BitcoinUnits::formatHtmlWithUnit(u, totalAmount));
211            }
212        }
213        tx_description.append(QString("<b>%1</b>: <b>%2</b>").arg(tr("Total Amount"))
214            .arg(BitcoinUnits::formatHtmlWithUnit(m_client_model->getOptionsModel()->getDisplayUnit(), totalAmount)));
215        tx_description.append(QString("<br /><span style='font-size:10pt; font-weight:normal;'>(=%1)</span>")
216            .arg(alternativeUnits.join(" " + tr("or") + " ")));
217    }
218
219    size_t num_unsigned = CountPSBTUnsignedInputs(psbtx);
220    if (num_unsigned > 0) {
221        tx_description.append("<br><br>");
222        tx_description.append(tr("Transaction has %n unsigned input(s).", "", num_unsigned));
223    }
224
225    return tx_description;
226}
227
228void PSBTOperationsDialog::showStatus(const QString &msg, StatusLevel level) {
229    m_ui->statusBar->setText(msg);
230    switch (level) {
231        case StatusLevel::Info: {
232            m_ui->statusBar->setStyleSheet("QLabel { background-color : lightgreen }");
233            break;
234        }
235        case StatusLevel::Warn: {
236            m_ui->statusBar->setStyleSheet("QLabel { background-color : orange }");
237            break;
238        }
239        case StatusLevel::Error: {
240            m_ui->statusBar->setStyleSheet("QLabel { background-color : red }");
241            break;
242        }
243    }
244    m_ui->statusBar->show();
245}
246
247size_t PSBTOperationsDialog::couldSignInputs(const PartiallySignedTransaction &psbtx) {
248    if (!m_wallet_model) {
249        return 0;
250    }

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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