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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.

11,310 bytes · SHA-256 8593052f6f00ce97… · View upstream ↗

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 <bitcoin-build-config.h> // IWYU pragma: keep
6
7#include <chainparams.h>
8#include <qt/intro.h>
9#include <qt/forms/ui_intro.h>
10#include <util/chaintype.h>
11#include <util/fs.h>
12
13#include <qt/freespacechecker.h>
14#include <qt/guiconstants.h>
15#include <qt/guiutil.h>
16#include <qt/optionsmodel.h>
17
18#include <common/args.h>
19#include <interfaces/node.h>
20#include <node/interface_ui.h>
21#include <util/fs_helpers.h>
22#include <util/translation.h>
23#include <validation.h>
24
25#include <QFileDialog>
26#include <QSettings>
27#include <QMessageBox>
28
29#include <cmath>
30#include <cstdlib>
31
32namespace {
33//! Return pruning size that will be used if automatic pruning is enabled.
34int GetPruneTargetGB()
35{
36    int64_t prune_target_mib = gArgs.GetIntArg("-prune", 0);
37    // >1 means automatic pruning is enabled by config, 1 means manual pruning, 0 means no pruning.
38    return prune_target_mib > 1 ? PruneMiBtoGB(prune_target_mib) : DEFAULT_PRUNE_TARGET_GB;
39}
40} // namespace
41
42Intro::Intro(QWidget *parent, int64_t blockchain_size_gb, int64_t chain_state_size_gb) :
43    QDialog(parent, GUIUtil::dialog_flags),
44    ui(new Ui::Intro),
45    m_blockchain_size_gb(blockchain_size_gb),
46    m_chain_state_size_gb(chain_state_size_gb),
47    m_prune_target_gb{GetPruneTargetGB()}
48{
49    ui->setupUi(this);
50    ui->welcomeLabel->setText(ui->welcomeLabel->text().arg(CLIENT_NAME));
51    ui->storageLabel->setText(ui->storageLabel->text().arg(CLIENT_NAME));
52
53    ui->lblExplanation1->setText(ui->lblExplanation1->text()
54        .arg(CLIENT_NAME)
55        .arg(m_blockchain_size_gb)
56        .arg(2009)
57        .arg(tr("Bitcoin"))
58    );
59    ui->lblExplanation2->setText(ui->lblExplanation2->text().arg(CLIENT_NAME));
60
61    const int min_prune_target_GB = std::ceil(MIN_DISK_SPACE_FOR_BLOCK_FILES / 1e9);
62    ui->pruneGB->setRange(min_prune_target_GB, std::numeric_limits<int>::max());
63    if (const auto arg{gArgs.GetIntArg("-prune")}) {
64        m_prune_checkbox_is_default = false;
65        ui->prune->setChecked(*arg >= 1);
66        ui->prune->setEnabled(false);
67    }
68    ui->pruneGB->setValue(m_prune_target_gb);
69    ui->pruneGB->setToolTip(ui->prune->toolTip());
70    ui->lblPruneSuffix->setToolTip(ui->prune->toolTip());
71    UpdatePruneLabels(ui->prune->isChecked());
72
73    connect(ui->prune, &QCheckBox::toggled, [this](bool prune_checked) {
74        m_prune_checkbox_is_default = false;
75        UpdatePruneLabels(prune_checked);
76        UpdateFreeSpaceLabel();
77    });
78    connect(ui->pruneGB, qOverload<int>(&QSpinBox::valueChanged), [this](int prune_GB) {
79        m_prune_target_gb = prune_GB;
80        UpdatePruneLabels(ui->prune->isChecked());
81        UpdateFreeSpaceLabel();
82    });
83
84    startThread();
85}
86
87Intro::~Intro()
88{
89    delete ui;
90    /* Ensure thread is finished before it is deleted */
91    thread->quit();
92    thread->wait();
93}
94
95QString Intro::getDataDirectory()
96{
97    return ui->dataDirectory->text();
98}
99
100void Intro::setDataDirectory(const QString &dataDir)
101{
102    ui->dataDirectory->setText(dataDir);
103    if(dataDir == GUIUtil::getDefaultDataDirectory())
104    {
105        ui->dataDirDefault->setChecked(true);
106        ui->dataDirectory->setEnabled(false);
107        ui->ellipsisButton->setEnabled(false);
108    } else {
109        ui->dataDirCustom->setChecked(true);
110        ui->dataDirectory->setEnabled(true);
111        ui->ellipsisButton->setEnabled(true);
112    }
113}
114
115int64_t Intro::getPruneMiB() const
116{
117    switch (ui->prune->checkState()) {
118    case Qt::Checked:
119        return PruneGBtoMiB(m_prune_target_gb);
120    case Qt::Unchecked: default:
121        return 0;
122    }
123}
124
125bool Intro::showIfNeeded(bool& did_show_intro, int64_t& prune_MiB)
126{
127    did_show_intro = false;
128
129    QSettings settings;
130    /* If data directory provided on command line, no need to look at settings
131       or show a picking dialog */
132    if(!gArgs.GetArg("-datadir", "").empty())
133        return true;
134    /* 1) Default data directory for operating system */
135    QString dataDir = GUIUtil::getDefaultDataDirectory();
136    /* 2) Allow QSettings to override default dir */
137    dataDir = settings.value("strDataDir", dataDir).toString();
138
139    if(!fs::exists(GUIUtil::QStringToPath(dataDir)) || gArgs.GetBoolArg("-choosedatadir", DEFAULT_CHOOSE_DATADIR) || settings.value("fReset", false).toBool() || gArgs.GetBoolArg("-resetguisettings", false))
140    {
141        /* Use selectParams here to guarantee Params() can be used by node interface */
142        try {
143            SelectParams(gArgs.GetChainType());
144        } catch (const std::exception& e) {
145            InitError(Untranslated(e.what()));
146            QMessageBox::critical(nullptr, CLIENT_NAME, QObject::tr("Error: %1").arg(QString(e.what())));
147            std::exit(EXIT_FAILURE);
148        }
149
150        /* If current default data directory does not exist, let the user choose one */
151        Intro intro(nullptr, Params().AssumedBlockchainSize(), Params().AssumedChainStateSize());
152        intro.setDataDirectory(dataDir);
153        intro.setWindowIcon(QIcon(":icons/bitcoin"));
154        did_show_intro = true;
155
156        while(true)
157        {
158            if(!intro.exec())
159            {
160                /* Cancel clicked */
161                return false;
162            }
163            dataDir = intro.getDataDirectory();
164            try {
165                if (TryCreateDirectories(GUIUtil::QStringToPath(dataDir))) {
166                    // If a new data directory has been created, make wallets subdirectory too
167                    TryCreateDirectories(GUIUtil::QStringToPath(dataDir) / "wallets");
168                }
169                break;
170            } catch (const fs::filesystem_error&) {
171                QMessageBox::critical(nullptr, CLIENT_NAME,
172                    tr("Error: Specified data directory \"%1\" cannot be created.").arg(dataDir));
173                /* fall through, back to choosing screen */
174            }
175        }
176
177        // Additional preferences:
178        prune_MiB = intro.getPruneMiB();
179
180        settings.setValue("strDataDir", dataDir);
181        settings.setValue("fReset", false);
182    }
183    /* Only override -datadir if different from the default, to make it possible to
184     * override -datadir in the bitcoin.conf file in the default data directory
185     * (to be consistent with bitcoind behavior)
186     */
187    if(dataDir != GUIUtil::getDefaultDataDirectory()) {
188        gArgs.SoftSetArg("-datadir", fs::PathToString(GUIUtil::QStringToPath(dataDir))); // use OS locale for path setting
189    }
190    return true;
191}
192
193void Intro::setStatus(int status, const QString &message, quint64 bytesAvailable)
194{
195    switch(status)
196    {
197    case FreespaceChecker::ST_OK:
198        ui->errorMessage->setText(message);
199        ui->errorMessage->setStyleSheet("");
200        break;
201    case FreespaceChecker::ST_ERROR:
202        ui->errorMessage->setText(tr("Error") + ": " + message);
203        ui->errorMessage->setStyleSheet("QLabel { color: #800000 }");
204        break;
205    }
206    /* Indicate number of bytes available */
207    if(status == FreespaceChecker::ST_ERROR)
208    {
209        ui->freeSpace->setText("");
210    } else {
211        m_bytes_available = bytesAvailable;
212        if (ui->prune->isEnabled() && m_prune_checkbox_is_default) {
213            ui->prune->setChecked(m_bytes_available < (m_blockchain_size_gb + m_chain_state_size_gb + 10) * GB_BYTES);
214        }
215        UpdateFreeSpaceLabel();
216    }
217    /* Don't allow confirm in ERROR state */
218    ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(status != FreespaceChecker::ST_ERROR);
219}
220
221void Intro::UpdateFreeSpaceLabel()
222{
223    QString freeString = tr("%n GB of space available", "", m_bytes_available / GB_BYTES);
224    if (m_bytes_available < m_required_space_gb * GB_BYTES) {
225        freeString += " " + tr("(of %n GB needed)", "", m_required_space_gb);
226        ui->freeSpace->setStyleSheet("QLabel { color: #800000 }");
227    } else if (m_bytes_available / GB_BYTES - m_required_space_gb < 10) {
228        freeString += " " + tr("(%n GB needed for full chain)", "", m_required_space_gb);
229        ui->freeSpace->setStyleSheet("QLabel { color: #999900 }");
230    } else {
231        ui->freeSpace->setStyleSheet("");
232    }
233    ui->freeSpace->setText(freeString + ".");
234}
235
236void Intro::on_dataDirectory_textChanged(const QString &dataDirStr)
237{
238    /* Disable OK button until check result comes in */
239    ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(false);
240    checkPath(dataDirStr);
241}
242
243void Intro::on_ellipsisButton_clicked()
244{
245    QString dir = QDir::toNativeSeparators(QFileDialog::getExistingDirectory(nullptr, tr("Choose data directory"), ui->dataDirectory->text()));
246    if(!dir.isEmpty())
247        ui->dataDirectory->setText(dir);
248}
249
250void Intro::on_dataDirDefault_clicked()

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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