src/qt/bitcoin.cpp

   1 // Copyright (c) 2011-2016 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 #if defined(HAVE_CONFIG_H)
   6 #include "config/bitcoin-config.h"
   7 #endif
   8
   9 #include "bitcoingui.h"
  10
  11 #include "chainparams.h"
  12 #include "clientmodel.h"
  13 #include "fs.h"
  14 #include "guiconstants.h"
  15 #include "guiutil.h"
  16 #include "intro.h"
  17 #include "networkstyle.h"
  18 #include "optionsmodel.h"
  19 #include "platformstyle.h"
  20 #include "splashscreen.h"
  21 #include "utilitydialog.h"
  22 #include "winshutdownmonitor.h"
  23
  24 #ifdef ENABLE_WALLET
  25 #include "paymentserver.h"
  26 #include "walletmodel.h"
  27 #endif
  28
  29 #include "init.h"
  30 #include "rpc/server.h"
  31 #include "scheduler.h"
  32 #include "ui_interface.h"
  33 #include "util.h"
  34 #include "warnings.h"
  35
  36 #ifdef ENABLE_WALLET
  37 #include "wallet/wallet.h"
  38 #endif
  39
  40 #include <stdint.h>
  41
  42 #include <boost/thread.hpp>
  43
  44 #include <QApplication>
  45 #include <QDebug>
  46 #include <QLibraryInfo>
  47 #include <QLocale>
  48 #include <QMessageBox>
  49 #include <QSettings>
  50 #include <QThread>
  51 #include <QTimer>
  52 #include <QTranslator>
  53 #include <QSslConfiguration>
  54
  55 #if defined(QT_STATICPLUGIN)
  56 #include <QtPlugin>
  57 #if QT_VERSION < 0x050000
  58 Q_IMPORT_PLUGIN(qcncodecs)
  59 Q_IMPORT_PLUGIN(qjpcodecs)
  60 Q_IMPORT_PLUGIN(qtwcodecs)
  61 Q_IMPORT_PLUGIN(qkrcodecs)
  62 Q_IMPORT_PLUGIN(qtaccessiblewidgets)
  63 #else
  64 #if QT_VERSION < 0x050400
  65 Q_IMPORT_PLUGIN(AccessibleFactory)
  66 #endif
  67 #if defined(QT_QPA_PLATFORM_XCB)
  68 Q_IMPORT_PLUGIN(QXcbIntegrationPlugin);
  69 #elif defined(QT_QPA_PLATFORM_WINDOWS)
  70 Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin);
  71 #elif defined(QT_QPA_PLATFORM_COCOA)
  72 Q_IMPORT_PLUGIN(QCocoaIntegrationPlugin);
  73 #endif
  74 #endif
  75 #endif
  76
  77 #if QT_VERSION < 0x050000
  78 #include <QTextCodec>
  79 #endif
  80
  81 // Declare meta types used for QMetaObject::invokeMethod
  82 Q_DECLARE_METATYPE(bool*)
  83 Q_DECLARE_METATYPE(CAmount)
  84
  85 static void InitMessage(const std::string &message)
  86 {
  87     LogPrintf("init message: %s\n", message);
  88 }
  89
  90 /*
  91    Translate string to current locale using Qt.
  92  */
  93 static std::string Translate(const char* psz)
  94 {
  95     return QCoreApplication::translate("bitcoin-core", psz).toStdString();
  96 }
  97
  98 static QString GetLangTerritory()
  99 {
 100     QSettings settings;
 101     // Get desired locale (e.g. "de_DE")
 102     // 1) System default language
 103     QString lang_territory = QLocale::system().name();
 104     // 2) Language from QSettings
 105     QString lang_territory_qsettings = settings.value("language", "").toString();
 106     if(!lang_territory_qsettings.isEmpty())
 107         lang_territory = lang_territory_qsettings;
 108     // 3) -lang command line argument
 109     lang_territory = QString::fromStdString(GetArg("-lang", lang_territory.toStdString()));
 110     return lang_territory;
 111 }
 112
 113 /** Set up translations */
 114 static void initTranslations(QTranslator &qtTranslatorBase, QTranslator &qtTranslator, QTranslator &translatorBase, QTranslator &translator)
 115 {
 116     // Remove old translators
 117     QApplication::removeTranslator(&qtTranslatorBase);
 118     QApplication::removeTranslator(&qtTranslator);
 119     QApplication::removeTranslator(&translatorBase);
 120     QApplication::removeTranslator(&translator);
 121
 122     // Get desired locale (e.g. "de_DE")
 123     // 1) System default language
 124     QString lang_territory = GetLangTerritory();
 125
 126     // Convert to "de" only by truncating "_DE"
 127     QString lang = lang_territory;
 128     lang.truncate(lang_territory.lastIndexOf('_'));
 129
 130     // Load language files for configured locale:
 131     // - First load the translator for the base language, without territory
 132     // - Then load the more specific locale translator
 133
 134     // Load e.g. qt_de.qm
 135     if (qtTranslatorBase.load("qt_" + lang, QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
 136         QApplication::installTranslator(&qtTranslatorBase);
 137
 138     // Load e.g. qt_de_DE.qm
 139     if (qtTranslator.load("qt_" + lang_territory, QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
 140         QApplication::installTranslator(&qtTranslator);
 141
 142     // Load e.g. bitcoin_de.qm (shortcut "de" needs to be defined in bitcoin.qrc)
 143     if (translatorBase.load(lang, ":/translations/"))
 144         QApplication::installTranslator(&translatorBase);
 145
 146     // Load e.g. bitcoin_de_DE.qm (shortcut "de_DE" needs to be defined in bitcoin.qrc)
 147     if (translator.load(lang_territory, ":/translations/"))
 148         QApplication::installTranslator(&translator);
 149 }
 150
 151 /* qDebug() message handler --> debug.log */
 152 #if QT_VERSION < 0x050000
 153 void DebugMessageHandler(QtMsgType type, const char *msg)
 154 {
 155     if (type == QtDebugMsg) {
 156         LogPrint(BCLog::QT, "GUI: %s\n", msg);
 157     } else {
 158         LogPrintf("GUI: %s\n", msg);
 159     }
 160 }
 161 #else
 162 void DebugMessageHandler(QtMsgType type, const QMessageLogContext& context, const QString &msg)
 163 {
 164     Q_UNUSED(context);
 165     if (type == QtDebugMsg) {
 166         LogPrint(BCLog::QT, "GUI: %s\n", msg.toStdString());
 167     } else {
 168         LogPrintf("GUI: %s\n", msg.toStdString());
 169     }
 170 }
 171 #endif
 172
 173 /** Class encapsulating Bitcoin Core startup and shutdown.
 174  * Allows running startup and shutdown in a different thread from the UI thread.
 175  */
 176 class BitcoinCore: public QObject
 177 {
 178     Q_OBJECT
 179 public:
 180     explicit BitcoinCore();
 181     /** Basic initialization, before starting initialization/shutdown thread.
 182      * Return true on success.
 183      */
 184     static bool baseInitialize();
 185
 186 public Q_SLOTS:
 187     void initialize();
 188     void shutdown();
 189
 190 Q_SIGNALS:
 191     void initializeResult(bool success);
 192     void shutdownResult();
 193     void runawayException(const QString &message);
 194
 195 private:
 196     boost::thread_group threadGroup;
 197     CScheduler scheduler;
 198
 199     /// Pass fatal exception message to UI thread
 200     void handleRunawayException(const std::exception *e);
 201 };
 202
 203 /** Main Bitcoin application object */
 204 class BitcoinApplication: public QApplication
 205 {
 206     Q_OBJECT
 207 public:
 208     explicit BitcoinApplication(int &argc, char **argv);
 209     ~BitcoinApplication();
 210
 211 #ifdef ENABLE_WALLET
 212     /// Create payment server
 213     void createPaymentServer();
 214 #endif
 215     /// parameter interaction/setup based on rules
 216     void parameterSetup();
 217     /// Create options model
 218     void createOptionsModel(bool resetSettings);
 219     /// Create main window
 220     void createWindow(const NetworkStyle *networkStyle);
 221     /// Create splash screen
 222     void createSplashScreen(const NetworkStyle *networkStyle);
 223
 224     /// Request core initialization
 225     void requestInitialize();
 226     /// Request core shutdown
 227     void requestShutdown();
 228
 229     /// Get process return value
 230     int getReturnValue() const { return returnValue; }
 231
 232     /// Get window identifier of QMainWindow (BitcoinGUI)
 233     WId getMainWinId() const;
 234
 235 public Q_SLOTS:
 236     void initializeResult(bool success);
 237     void shutdownResult();
 238     /// Handle runaway exceptions. Shows a message box with the problem and quits the program.
 239     void handleRunawayException(const QString &message);
 240
 241 Q_SIGNALS:
 242     void requestedInitialize();
 243     void requestedShutdown();
 244     void stopThread();
 245     void splashFinished(QWidget *window);
 246
 247 private:
 248     QThread *coreThread;
 249     OptionsModel *optionsModel;
 250     ClientModel *clientModel;
 251     BitcoinGUI *window;
 252     QTimer *pollShutdownTimer;
 253 #ifdef ENABLE_WALLET
 254     PaymentServer* paymentServer;
 255     WalletModel *walletModel;
 256 #endif
 257     int returnValue;
 258     const PlatformStyle *platformStyle;
 259     std::unique_ptr<QWidget> shutdownWindow;
 260
 261     void startThread();
 262 };
 263
 264 #include "bitcoin.moc"
 265
 266 BitcoinCore::BitcoinCore():
 267     QObject()
 268 {
 269 }
 270
 271 void BitcoinCore::handleRunawayException(const std::exception *e)
 272 {
 273     PrintExceptionContinue(e, "Runaway exception");
 274     Q_EMIT runawayException(QString::fromStdString(GetWarnings("gui")));
 275 }
 276
 277 bool BitcoinCore::baseInitialize()
 278 {
 279     if (!AppInitBasicSetup())
 280     {
 281         return false;
 282     }
 283     if (!AppInitParameterInteraction())
 284     {
 285         return false;
 286     }
 287     if (!AppInitSanityChecks())
 288     {
 289         return false;
 290     }
 291     if (!AppInitLockDataDirectory())
 292     {
 293         return false;
 294     }
 295     return true;
 296 }
 297
 298 void BitcoinCore::initialize()
 299 {
 300     try
 301     {
 302         qDebug() << __func__ << ": Running initialization in thread";
 303         bool rv = AppInitMain(threadGroup, scheduler);
 304         Q_EMIT initializeResult(rv);
 305     } catch (const std::exception& e) {
 306         handleRunawayException(&e);
 307     } catch (...) {
 308         handleRunawayException(NULL);
 309     }
 310 }
 311
 312 void BitcoinCore::shutdown()
 313 {
 314     try
 315     {
 316         qDebug() << __func__ << ": Running Shutdown in thread";
 317         Interrupt(threadGroup);
 318         threadGroup.join_all();
 319         Shutdown();
 320         qDebug() << __func__ << ": Shutdown finished";
 321         Q_EMIT shutdownResult();
 322     } catch (const std::exception& e) {
 323         handleRunawayException(&e);
 324     } catch (...) {
 325         handleRunawayException(NULL);
 326     }
 327 }
 328
 329 BitcoinApplication::BitcoinApplication(int &argc, char **argv):
 330     QApplication(argc, argv),
 331     coreThread(0),
 332     optionsModel(0),
 333     clientModel(0),
 334     window(0),
 335     pollShutdownTimer(0),
 336 #ifdef ENABLE_WALLET
 337     paymentServer(0),
 338     walletModel(0),
 339 #endif
 340     returnValue(0)
 341 {
 342     setQuitOnLastWindowClosed(false);
 343
 344     // UI per-platform customization
 345     // This must be done inside the BitcoinApplication constructor, or after it, because
 346     // PlatformStyle::instantiate requires a QApplication
 347     std::string platformName;
 348     platformName = GetArg("-uiplatform", BitcoinGUI::DEFAULT_UIPLATFORM);
 349     platformStyle = PlatformStyle::instantiate(QString::fromStdString(platformName));
 350     if (!platformStyle) // Fall back to "other" if specified name not found
 351         platformStyle = PlatformStyle::instantiate("other");
 352     assert(platformStyle);
 353 }
 354
 355 BitcoinApplication::~BitcoinApplication()
 356 {
 357     if(coreThread)
 358     {
 359         qDebug() << __func__ << ": Stopping thread";
 360         Q_EMIT stopThread();
 361         coreThread->wait();
 362         qDebug() << __func__ << ": Stopped thread";
 363     }
 364
 365     delete window;
 366     window = 0;
 367 #ifdef ENABLE_WALLET
 368     delete paymentServer;
 369     paymentServer = 0;
 370 #endif
 371     delete optionsModel;
 372     optionsModel = 0;
 373     delete platformStyle;
 374     platformStyle = 0;
 375 }
 376
 377 #ifdef ENABLE_WALLET
 378 void BitcoinApplication::createPaymentServer()
 379 {
 380     paymentServer = new PaymentServer(this);
 381 }
 382 #endif
 383
 384 void BitcoinApplication::createOptionsModel(bool resetSettings)
 385 {
 386     optionsModel = new OptionsModel(NULL, resetSettings);
 387 }
 388
 389 void BitcoinApplication::createWindow(const NetworkStyle *networkStyle)
 390 {
 391     window = new BitcoinGUI(platformStyle, networkStyle, 0);
 392
 393     pollShutdownTimer = new QTimer(window);
 394     connect(pollShutdownTimer, SIGNAL(timeout()), window, SLOT(detectShutdown()));
 395     pollShutdownTimer->start(200);
 396 }
 397
 398 void BitcoinApplication::createSplashScreen(const NetworkStyle *networkStyle)
 399 {
 400     SplashScreen *splash = new SplashScreen(0, networkStyle);
 401     // We don't hold a direct pointer to the splash screen after creation, but the splash
 402     // screen will take care of deleting itself when slotFinish happens.
 403     splash->show();
 404     connect(this, SIGNAL(splashFinished(QWidget*)), splash, SLOT(slotFinish(QWidget*)));
 405     connect(this, SIGNAL(requestedShutdown()), splash, SLOT(close()));
 406 }
 407
 408 void BitcoinApplication::startThread()
 409 {
 410     if(coreThread)
 411         return;
 412     coreThread = new QThread(this);
 413     BitcoinCore *executor = new BitcoinCore();
 414     executor->moveToThread(coreThread);
 415
 416     /*  communication to and from thread */
 417     connect(executor, SIGNAL(initializeResult(bool)), this, SLOT(initializeResult(bool)));
 418     connect(executor, SIGNAL(shutdownResult()), this, SLOT(shutdownResult()));
 419     connect(executor, SIGNAL(runawayException(QString)), this, SLOT(handleRunawayException(QString)));
 420     connect(this, SIGNAL(requestedInitialize()), executor, SLOT(initialize()));
 421     connect(this, SIGNAL(requestedShutdown()), executor, SLOT(shutdown()));
 422     /*  make sure executor object is deleted in its own thread */
 423     connect(this, SIGNAL(stopThread()), executor, SLOT(deleteLater()));
 424     connect(this, SIGNAL(stopThread()), coreThread, SLOT(quit()));
 425
 426     coreThread->start();
 427 }
 428
 429 void BitcoinApplication::parameterSetup()
 430 {
 431     InitLogging();
 432     InitParameterInteraction();
 433 }
 434
 435 void BitcoinApplication::requestInitialize()
 436 {
 437     qDebug() << __func__ << ": Requesting initialize";
 438     startThread();
 439     Q_EMIT requestedInitialize();
 440 }
 441
 442 void BitcoinApplication::requestShutdown()
 443 {
 444     // Show a simple window indicating shutdown status
 445     // Do this first as some of the steps may take some time below,
 446     // for example the RPC console may still be executing a command.
 447     shutdownWindow.reset(ShutdownWindow::showShutdownWindow(window));
 448
 449     qDebug() << __func__ << ": Requesting shutdown";
 450     startThread();
 451     window->hide();
 452     window->setClientModel(0);
 453     pollShutdownTimer->stop();
 454
 455 #ifdef ENABLE_WALLET
 456     window->removeAllWallets();
 457     delete walletModel;
 458     walletModel = 0;
 459 #endif
 460     delete clientModel;
 461     clientModel = 0;
 462
 463     StartShutdown();
 464
 465     // Request shutdown from core thread
 466     Q_EMIT requestedShutdown();
 467 }
 468
 469 void BitcoinApplication::initializeResult(bool success)
 470 {
 471     qDebug() << __func__ << ": Initialization result: " << success;
 472     // Set exit result.
 473     returnValue = success ? EXIT_SUCCESS : EXIT_FAILURE;
 474     if(success)
 475     {
 476         // Log this only after AppInitMain finishes, as then logging setup is guaranteed complete
 477         qWarning() << "Platform customization:" << platformStyle->getName();
 478 #ifdef ENABLE_WALLET
 479         PaymentServer::LoadRootCAs();
 480         paymentServer->setOptionsModel(optionsModel);
 481 #endif
 482
 483         clientModel = new ClientModel(optionsModel);
 484         window->setClientModel(clientModel);
 485
 486 #ifdef ENABLE_WALLET
 487         // TODO: Expose secondary wallets
 488         if (!vpwallets.empty())
 489         {
 490             walletModel = new WalletModel(platformStyle, vpwallets[0], optionsModel);
 491
 492             window->addWallet(BitcoinGUI::DEFAULT_WALLET, walletModel);
 493             window->setCurrentWallet(BitcoinGUI::DEFAULT_WALLET);
 494
 495             connect(walletModel, SIGNAL(coinsSent(CWallet*,SendCoinsRecipient,QByteArray)),
 496                              paymentServer, SLOT(fetchPaymentACK(CWallet*,const SendCoinsRecipient&,QByteArray)));
 497         }
 498 #endif
 499
 500         // If -min option passed, start window minimized.
 501         if(GetBoolArg("-min", false))
 502         {
 503             window->showMinimized();
 504         }
 505         else
 506         {
 507             window->show();
 508         }
 509         Q_EMIT splashFinished(window);
 510
 511 #ifdef ENABLE_WALLET
 512         // Now that initialization/startup is done, process any command-line
 513         // bitcoin: URIs or payment requests:
 514         connect(paymentServer, SIGNAL(receivedPaymentRequest(SendCoinsRecipient)),
 515                          window, SLOT(handlePaymentRequest(SendCoinsRecipient)));
 516         connect(window, SIGNAL(receivedURI(QString)),
 517                          paymentServer, SLOT(handleURIOrFile(QString)));
 518         connect(paymentServer, SIGNAL(message(QString,QString,unsigned int)),
 519                          window, SLOT(message(QString,QString,unsigned int)));
 520         QTimer::singleShot(100, paymentServer, SLOT(uiReady()));
 521 #endif
 522     } else {
 523         quit(); // Exit main loop
 524     }
 525 }
 526
 527 void BitcoinApplication::shutdownResult()
 528 {
 529     quit(); // Exit main loop after shutdown finished
 530 }
 531
 532 void BitcoinApplication::handleRunawayException(const QString &message)
 533 {
 534     QMessageBox::critical(0, "Runaway exception", BitcoinGUI::tr("A fatal error occurred. Bitcoin can no longer continue safely and will quit.") + QString("\n\n") + message);
 535     ::exit(EXIT_FAILURE);
 536 }
 537
 538 WId BitcoinApplication::getMainWinId() const
 539 {
 540     if (!window)
 541         return 0;
 542
 543     return window->winId();
 544 }
 545
 546 #ifndef BITCOIN_QT_TEST
 547 int main(int argc, char *argv[])
 548 {
 549     SetupEnvironment();
 550
 551     /// 1. Parse command-line options. These take precedence over anything else.
 552     // Command-line options take precedence:
 553     ParseParameters(argc, argv);
 554
 555     // Do not refer to data directory yet, this can be overridden by Intro::pickDataDirectory
 556
 557     /// 2. Basic Qt initialization (not dependent on parameters or configuration)
 558 #if QT_VERSION < 0x050000
 559     // Internal string conversion is all UTF-8
 560     QTextCodec::setCodecForTr(QTextCodec::codecForName("UTF-8"));
 561     QTextCodec::setCodecForCStrings(QTextCodec::codecForTr());
 562 #endif
 563
 564     Q_INIT_RESOURCE(bitcoin);
 565     Q_INIT_RESOURCE(bitcoin_locale);
 566
 567     BitcoinApplication app(argc, argv);
 568 #if QT_VERSION > 0x050100
 569     // Generate high-dpi pixmaps
 570     QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
 571 #endif
 572 #if QT_VERSION >= 0x050600
 573     QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
 574 #endif
 575 #ifdef Q_OS_MAC
 576     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
 577 #endif
 578 #if QT_VERSION >= 0x050500
 579     // Because of the POODLE attack it is recommended to disable SSLv3 (https://disablessl3.com/),
 580     // so set SSL protocols to TLS1.0+.
 581     QSslConfiguration sslconf = QSslConfiguration::defaultConfiguration();
 582     sslconf.setProtocol(QSsl::TlsV1_0OrLater);
 583     QSslConfiguration::setDefaultConfiguration(sslconf);
 584 #endif
 585
 586     // Register meta types used for QMetaObject::invokeMethod
 587     qRegisterMetaType< bool* >();
 588     //   Need to pass name here as CAmount is a typedef (see http://qt-project.org/doc/qt-5/qmetatype.html#qRegisterMetaType)
 589     //   IMPORTANT if it is no longer a typedef use the normal variant above
 590     qRegisterMetaType< CAmount >("CAmount");
 591     qRegisterMetaType< std::function<void(void)> >("std::function<void(void)>");
 592
 593     /// 3. Application identification
 594     // must be set before OptionsModel is initialized or translations are loaded,
 595     // as it is used to locate QSettings
 596     QApplication::setOrganizationName(QAPP_ORG_NAME);
 597     QApplication::setOrganizationDomain(QAPP_ORG_DOMAIN);
 598     QApplication::setApplicationName(QAPP_APP_NAME_DEFAULT);
 599     GUIUtil::SubstituteFonts(GetLangTerritory());
 600
 601     /// 4. Initialization of translations, so that intro dialog is in user's language
 602     // Now that QSettings are accessible, initialize translations
 603     QTranslator qtTranslatorBase, qtTranslator, translatorBase, translator;
 604     initTranslations(qtTranslatorBase, qtTranslator, translatorBase, translator);
 605     translationInterface.Translate.connect(Translate);
 606
 607     // Show help message immediately after parsing command-line options (for "-lang") and setting locale,
 608     // but before showing splash screen.
 609     if (IsArgSet("-?") || IsArgSet("-h") || IsArgSet("-help") || IsArgSet("-version"))
 610     {
 611         HelpMessageDialog help(NULL, IsArgSet("-version"));
 612         help.showOrPrint();
 613         return EXIT_SUCCESS;
 614     }
 615
 616     /// 5. Now that settings and translations are available, ask user for data directory
 617     // User language is set up: pick a data directory
 618     if (!Intro::pickDataDirectory())
 619         return EXIT_SUCCESS;
 620
 621     /// 6. Determine availability of data directory and parse bitcoin.conf
 622     /// - Do not call GetDataDir(true) before this step finishes
 623     if (!fs::is_directory(GetDataDir(false)))
 624     {
 625         QMessageBox::critical(0, QObject::tr(PACKAGE_NAME),
 626                               QObject::tr("Error: Specified data directory \"%1\" does not exist.").arg(QString::fromStdString(GetArg("-datadir", ""))));
 627         return EXIT_FAILURE;
 628     }
 629     try {
 630         ReadConfigFile(GetArg("-conf", BITCOIN_CONF_FILENAME));
 631     } catch (const std::exception& e) {
 632         QMessageBox::critical(0, QObject::tr(PACKAGE_NAME),
 633                               QObject::tr("Error: Cannot parse configuration file: %1. Only use key=value syntax.").arg(e.what()));
 634         return EXIT_FAILURE;
 635     }
 636
 637     /// 7. Determine network (and switch to network specific options)
 638     // - Do not call Params() before this step
 639     // - Do this after parsing the configuration file, as the network can be switched there
 640     // - QSettings() will use the new application name after this, resulting in network-specific settings
 641     // - Needs to be done before createOptionsModel
 642
 643     // Check for -testnet or -regtest parameter (Params() calls are only valid after this clause)
 644     try {
 645         SelectParams(ChainNameFromCommandLine());
 646     } catch(std::exception &e) {
 647         QMessageBox::critical(0, QObject::tr(PACKAGE_NAME), QObject::tr("Error: %1").arg(e.what()));
 648         return EXIT_FAILURE;
 649     }
 650 #ifdef ENABLE_WALLET
 651     // Parse URIs on command line -- this can affect Params()
 652     PaymentServer::ipcParseCommandLine(argc, argv);
 653 #endif
 654
 655     QScopedPointer<const NetworkStyle> networkStyle(NetworkStyle::instantiate(QString::fromStdString(Params().NetworkIDString())));
 656     assert(!networkStyle.isNull());
 657     // Allow for separate UI settings for testnets
 658     QApplication::setApplicationName(networkStyle->getAppName());
 659     // Re-initialize translations after changing application name (language in network-specific settings can be different)
 660     initTranslations(qtTranslatorBase, qtTranslator, translatorBase, translator);
 661
 662 #ifdef ENABLE_WALLET
 663     /// 8. URI IPC sending
 664     // - Do this early as we don't want to bother initializing if we are just calling IPC
 665     // - Do this *after* setting up the data directory, as the data directory hash is used in the name
 666     // of the server.
 667     // - Do this after creating app and setting up translations, so errors are
 668     // translated properly.
 669     if (PaymentServer::ipcSendCommandLine())
 670         exit(EXIT_SUCCESS);
 671
 672     // Start up the payment server early, too, so impatient users that click on
 673     // bitcoin: links repeatedly have their payment requests routed to this process:
 674     app.createPaymentServer();
 675 #endif
 676
 677     /// 9. Main GUI initialization
 678     // Install global event filter that makes sure that long tooltips can be word-wrapped
 679     app.installEventFilter(new GUIUtil::ToolTipToRichTextFilter(TOOLTIP_WRAP_THRESHOLD, &app));
 680 #if QT_VERSION < 0x050000
 681     // Install qDebug() message handler to route to debug.log
 682     qInstallMsgHandler(DebugMessageHandler);
 683 #else
 684 #if defined(Q_OS_WIN)
 685     // Install global event filter for processing Windows session related Windows messages (WM_QUERYENDSESSION and WM_ENDSESSION)
 686     qApp->installNativeEventFilter(new WinShutdownMonitor());
 687 #endif
 688     // Install qDebug() message handler to route to debug.log
 689     qInstallMessageHandler(DebugMessageHandler);
 690 #endif
 691     // Allow parameter interaction before we create the options model
 692     app.parameterSetup();
 693     // Load GUI settings from QSettings
 694     app.createOptionsModel(IsArgSet("-resetguisettings"));
 695
 696     // Subscribe to global signals from core
 697     uiInterface.InitMessage.connect(InitMessage);
 698
 699     if (GetBoolArg("-splash", DEFAULT_SPLASHSCREEN) && !GetBoolArg("-min", false))
 700         app.createSplashScreen(networkStyle.data());
 701
 702     int rv = EXIT_SUCCESS;
 703     try
 704     {
 705         app.createWindow(networkStyle.data());
 706         // Perform base initialization before spinning up initialization/shutdown thread
 707         // This is acceptable because this function only contains steps that are quick to execute,
 708         // so the GUI thread won't be held up.
 709         if (BitcoinCore::baseInitialize()) {
 710             app.requestInitialize();
 711 #if defined(Q_OS_WIN) && QT_VERSION >= 0x050000
 712             WinShutdownMonitor::registerShutdownBlockReason(QObject::tr("%1 didn't yet exit safely...").arg(QObject::tr(PACKAGE_NAME)), (HWND)app.getMainWinId());
 713 #endif
 714             app.exec();
 715             app.requestShutdown();
 716             app.exec();
 717             rv = app.getReturnValue();
 718         } else {
 719             // A dialog with detailed error will have been shown by InitError()
 720             rv = EXIT_FAILURE;
 721         }
 722     } catch (const std::exception& e) {
 723         PrintExceptionContinue(&e, "Runaway exception");
 724         app.handleRunawayException(QString::fromStdString(GetWarnings("gui")));
 725     } catch (...) {
 726         PrintExceptionContinue(NULL, "Runaway exception");
 727         app.handleRunawayException(QString::fromStdString(GetWarnings("gui")));
 728     }
 729     return rv;
 730 }
 731 #endif // BITCOIN_QT_TEST