src/common/quassel.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2018 by the Quassel Project                        *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) version 3.                                           *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  19  ***************************************************************************/
  20
  21 #include "quassel.h"
  22
  23 #include <algorithm>
  24 #include <iostream>
  25
  26 #include <QCoreApplication>
  27 #include <QDateTime>
  28 #include <QDir>
  29 #include <QFileInfo>
  30 #include <QHostAddress>
  31 #include <QLibraryInfo>
  32 #include <QMetaEnum>
  33 #include <QSettings>
  34 #include <QTranslator>
  35 #include <QUuid>
  36
  37 #include "bufferinfo.h"
  38 #include "identity.h"
  39 #include "logger.h"
  40 #include "logmessage.h"
  41 #include "message.h"
  42 #include "network.h"
  43 #include "peer.h"
  44 #include "protocol.h"
  45 #include "syncableobject.h"
  46 #include "types.h"
  47
  48 #ifndef Q_OS_WIN
  49 #    include "posixsignalwatcher.h"
  50 #else
  51 #    include "windowssignalwatcher.h"
  52 #endif
  53
  54 #include "../../version.h"
  55
  56 Quassel::Quassel()
  57     : Singleton<Quassel>{this}
  58     , _logger{new Logger{this}}
  59 {
  60 }
  61
  62
  63 void Quassel::init(RunMode runMode)
  64 {
  65     _runMode = runMode;
  66
  67     qsrand(QTime(0, 0, 0).secsTo(QTime::currentTime()));
  68
  69     setupSignalHandling();
  70     setupEnvironment();
  71     registerMetaTypes();
  72
  73     // Initial translation (may be overridden in UI settings)
  74     loadTranslation(QLocale::system());
  75
  76     setupCliParser();
  77
  78     // Don't keep a debug log on the core
  79     logger()->setup(runMode != RunMode::CoreOnly);
  80
  81     Network::setDefaultCodecForServer("UTF-8");
  82     Network::setDefaultCodecForEncoding("UTF-8");
  83     Network::setDefaultCodecForDecoding("ISO-8859-15");
  84 }
  85
  86
  87 Logger *Quassel::logger() const
  88 {
  89     return _logger;
  90 }
  91
  92
  93 void Quassel::registerQuitHandler(QuitHandler handler)
  94 {
  95     instance()->_quitHandlers.emplace_back(std::move(handler));
  96 }
  97
  98 void Quassel::quit()
  99 {
 100     // Protect against multiple invocations (e.g. triggered by MainWin::closeEvent())
 101     if (!_quitting) {
 102         _quitting = true;
 103         quInfo() << "Quitting...";
 104         if (_quitHandlers.empty()) {
 105             QCoreApplication::quit();
 106         }
 107         else {
 108             // Note: We expect one of the registered handlers to call QCoreApplication::quit()
 109             for (auto &&handler : _quitHandlers) {
 110                 handler();
 111             }
 112         }
 113     }
 114 }
 115
 116
 117 void Quassel::registerReloadHandler(ReloadHandler handler)
 118 {
 119     instance()->_reloadHandlers.emplace_back(std::move(handler));
 120 }
 121
 122
 123 bool Quassel::reloadConfig()
 124 {
 125     bool result{true};
 126     for (auto &&handler : _reloadHandlers) {
 127         result = result && handler();
 128     }
 129     return result;
 130 }
 131
 132
 133 //! Register our custom types with Qt's Meta Object System.
 134 /**  This makes them available for QVariant and in signals/slots, among other things.
 135 *
 136 */
 137 void Quassel::registerMetaTypes()
 138 {
 139     // Complex types
 140     qRegisterMetaType<Message>("Message");
 141     qRegisterMetaType<BufferInfo>("BufferInfo");
 142     qRegisterMetaType<NetworkInfo>("NetworkInfo");
 143     qRegisterMetaType<Network::Server>("Network::Server");
 144     qRegisterMetaType<Identity>("Identity");
 145
 146     qRegisterMetaTypeStreamOperators<Message>("Message");
 147     qRegisterMetaTypeStreamOperators<BufferInfo>("BufferInfo");
 148     qRegisterMetaTypeStreamOperators<NetworkInfo>("NetworkInfo");
 149     qRegisterMetaTypeStreamOperators<Network::Server>("Network::Server");
 150     qRegisterMetaTypeStreamOperators<Identity>("Identity");
 151
 152     qRegisterMetaType<IdentityId>("IdentityId");
 153     qRegisterMetaType<BufferId>("BufferId");
 154     qRegisterMetaType<NetworkId>("NetworkId");
 155     qRegisterMetaType<UserId>("UserId");
 156     qRegisterMetaType<AccountId>("AccountId");
 157     qRegisterMetaType<MsgId>("MsgId");
 158
 159     qRegisterMetaType<QHostAddress>("QHostAddress");
 160     qRegisterMetaTypeStreamOperators<QHostAddress>("QHostAddress");
 161     qRegisterMetaType<QUuid>("QUuid");
 162     qRegisterMetaTypeStreamOperators<QUuid>("QUuid");
 163
 164     qRegisterMetaTypeStreamOperators<IdentityId>("IdentityId");
 165     qRegisterMetaTypeStreamOperators<BufferId>("BufferId");
 166     qRegisterMetaTypeStreamOperators<NetworkId>("NetworkId");
 167     qRegisterMetaTypeStreamOperators<UserId>("UserId");
 168     qRegisterMetaTypeStreamOperators<AccountId>("AccountId");
 169     qRegisterMetaTypeStreamOperators<MsgId>("MsgId");
 170
 171     qRegisterMetaType<Protocol::SessionState>("Protocol::SessionState");
 172     qRegisterMetaType<PeerPtr>("PeerPtr");
 173     qRegisterMetaTypeStreamOperators<PeerPtr>("PeerPtr");
 174
 175     // Versions of Qt prior to 4.7 didn't define QVariant as a meta type
 176     if (!QMetaType::type("QVariant")) {
 177         qRegisterMetaType<QVariant>("QVariant");
 178         qRegisterMetaTypeStreamOperators<QVariant>("QVariant");
 179     }
 180 }
 181
 182
 183 void Quassel::setupEnvironment()
 184 {
 185     // On modern Linux systems, XDG_DATA_DIRS contains a list of directories containing application data. This
 186     // is, for example, used by Qt for finding icons and other things. In case Quassel is installed in a non-standard
 187     // prefix (or run from the build directory), it makes sense to add this to XDG_DATA_DIRS so we don't have to
 188     // hack extra search paths into various places.
 189 #ifdef Q_OS_UNIX
 190     QString xdgDataVar = QFile::decodeName(qgetenv("XDG_DATA_DIRS"));
 191     if (xdgDataVar.isEmpty())
 192         xdgDataVar = QLatin1String("/usr/local/share:/usr/share"); // sane defaults
 193
 194     QStringList xdgDirs = xdgDataVar.split(QLatin1Char(':'), QString::SkipEmptyParts);
 195
 196     // Add our install prefix (if we're not in a bindir, this just adds the current workdir)
 197     QString appDir = QCoreApplication::applicationDirPath();
 198     int binpos = appDir.lastIndexOf("/bin");
 199     if (binpos >= 0) {
 200         appDir.replace(binpos, 4, "/share");
 201         xdgDirs.append(appDir);
 202         // Also append apps/quassel, this is only for QIconLoader to find icons there
 203         xdgDirs.append(appDir + "/apps/quassel");
 204     } else
 205         xdgDirs.append(appDir);  // build directory is always the last fallback
 206
 207     xdgDirs.removeDuplicates();
 208
 209     qputenv("XDG_DATA_DIRS", QFile::encodeName(xdgDirs.join(":")));
 210 #endif
 211 }
 212
 213
 214 void Quassel::setupBuildInfo()
 215 {
 216     BuildInfo buildInfo;
 217     buildInfo.applicationName = "quassel";
 218     buildInfo.coreApplicationName = "quasselcore";
 219     buildInfo.clientApplicationName = "quasselclient";
 220     buildInfo.organizationName = "Quassel Project";
 221     buildInfo.organizationDomain = "quassel-irc.org";
 222
 223     buildInfo.protocolVersion = 10; // FIXME: deprecated, will be removed
 224
 225     buildInfo.baseVersion = QUASSEL_VERSION_STRING;
 226     buildInfo.generatedVersion = GIT_DESCRIBE;
 227
 228     // Check if we got a commit hash
 229     if (!QString(GIT_HEAD).isEmpty()) {
 230         buildInfo.commitHash = GIT_HEAD;
 231         // Set to Unix epoch, wrapped as a string for backwards-compatibility
 232         buildInfo.commitDate = QString::number(GIT_COMMIT_DATE);
 233     }
 234     else if (!QString(DIST_HASH).contains("Format")) {
 235         buildInfo.commitHash = DIST_HASH;
 236         // Leave as Unix epoch if set as Unix epoch, but don't force this for
 237         // backwards-compatibility with existing packaging/release tools that might set strings.
 238         buildInfo.commitDate = QString(DIST_DATE);
 239     }
 240
 241     // create a nice version string
 242     if (buildInfo.generatedVersion.isEmpty()) {
 243         if (!buildInfo.commitHash.isEmpty()) {
 244             // dist version
 245             buildInfo.plainVersionString = QString{"v%1 (dist-%2)"}
 246                                                .arg(buildInfo.baseVersion)
 247                                                .arg(buildInfo.commitHash.left(7));
 248             buildInfo.fancyVersionString = QString{"v%1 (dist-<a href=\"https://github.com/quassel/quassel/commit/%3\">%2</a>)"}
 249                                                .arg(buildInfo.baseVersion)
 250                                                .arg(buildInfo.commitHash.left(7))
 251                                                .arg(buildInfo.commitHash);
 252         }
 253         else {
 254             // we only have a base version :(
 255             buildInfo.plainVersionString = QString{"v%1 (unknown revision)"}.arg(buildInfo.baseVersion);
 256         }
 257     }
 258     else {
 259         // analyze what we got from git-describe
 260         static const QRegExp rx{"(.*)-(\\d+)-g([0-9a-f]+)(-dirty)?$"};
 261         if (rx.exactMatch(buildInfo.generatedVersion)) {
 262             QString distance = rx.cap(2) == "0" ? QString{} : QString{"%1+%2 "}.arg(rx.cap(1), rx.cap(2));
 263             buildInfo.plainVersionString = QString{"v%1 (%2git-%3%4)"}.arg(buildInfo.baseVersion, distance, rx.cap(3), rx.cap(4));
 264             if (!buildInfo.commitHash.isEmpty()) {
 265                 buildInfo.fancyVersionString = QString{"v%1 (%2git-<a href=\"https://github.com/quassel/quassel/commit/%5\">%3</a>%4)"}
 266                                                    .arg(buildInfo.baseVersion, distance, rx.cap(3), rx.cap(4), buildInfo.commitHash);
 267             }
 268         }
 269         else {
 270             buildInfo.plainVersionString = QString{"v%1 (invalid revision)"}.arg(buildInfo.baseVersion);
 271         }
 272     }
 273     if (buildInfo.fancyVersionString.isEmpty()) {
 274         buildInfo.fancyVersionString = buildInfo.plainVersionString;
 275     }
 276
 277     instance()->_buildInfo = std::move(buildInfo);
 278 }
 279
 280
 281 const Quassel::BuildInfo &Quassel::buildInfo()
 282 {
 283     return instance()->_buildInfo;
 284 }
 285
 286
 287 void Quassel::setupSignalHandling()
 288 {
 289 #ifndef Q_OS_WIN
 290     _signalWatcher = new PosixSignalWatcher(this);
 291 #else
 292     _signalWatcher = new WindowsSignalWatcher(this);
 293 #endif
 294     connect(_signalWatcher, SIGNAL(handleSignal(AbstractSignalWatcher::Action)), this, SLOT(handleSignal(AbstractSignalWatcher::Action)));
 295 }
 296
 297
 298 void Quassel::handleSignal(AbstractSignalWatcher::Action action)
 299 {
 300     switch (action) {
 301     case AbstractSignalWatcher::Action::Reload:
 302         // Most applications use this as the 'configuration reload' command, e.g. nginx uses it for graceful reloading of processes.
 303         if (!_reloadHandlers.empty()) {
 304             quInfo() << "Reloading configuration";
 305             if (reloadConfig()) {
 306                 quInfo() << "Successfully reloaded configuration";
 307             }
 308         }
 309         break;
 310     case AbstractSignalWatcher::Action::Terminate:
 311         if (!_quitting) {
 312             quit();
 313         }
 314         else {
 315             quInfo() << "Already shutting down, ignoring signal";
 316         }
 317         break;
 318     case AbstractSignalWatcher::Action::HandleCrash:
 319         logBacktrace(instance()->coreDumpFileName());
 320         exit(EXIT_FAILURE);
 321     }
 322 }
 323
 324
 325 Quassel::RunMode Quassel::runMode() {
 326     return instance()->_runMode;
 327 }
 328
 329
 330 void Quassel::setupCliParser()
 331 {
 332     QList<QCommandLineOption> options;
 333
 334     // General options
 335     /// @todo Bring back --datadir to specify the database location independent of config
 336     if (runMode() == RunMode::ClientOnly) {
 337         options += {{"c", "configdir"}, tr("Specify the directory holding the client configuration."), tr("path")};
 338     }
 339     else {
 340         options += {{"c", "configdir"}, tr("Specify the directory holding configuration files, the SQlite database and the SSL certificate."), tr("path")};
 341     }
 342
 343     // Client options
 344     if (runMode() != RunMode::CoreOnly) {
 345         options += {
 346             {"icontheme", tr("Override the system icon theme ('breeze' is recommended)."), tr("theme")},
 347             {"qss", tr("Load a custom application stylesheet."), tr("file.qss")},
 348             {"hidewindow", tr("Start the client minimized to the system tray.")},
 349         };
 350     }
 351
 352     // Core options
 353     if (runMode() != RunMode::ClientOnly) {
 354         options += {
 355             {"listen", tr("The address(es) quasselcore will listen on."), tr("<address>[,<address>[,...]]"), "::,0.0.0.0"},
 356             {{"p", "port"}, tr("The port quasselcore will listen at."), tr("port"), "4242"},
 357             {{"n", "norestore"}, tr("Don't restore last core's state.")},
 358             {"config-from-environment", tr("Load configuration from environment variables.")},
 359             {"select-backend", tr("Switch storage backend (migrating data if possible)."), tr("backendidentifier")},
 360             {"select-authenticator", tr("Select authentication backend."), tr("authidentifier")},
 361             {"add-user", tr("Starts an interactive session to add a new core user.")},
 362             {"change-userpass", tr("Starts an interactive session to change the password of the user identified by <username>."), tr("username")},
 363             {"strict-ident", tr("Use users' quasselcore username as ident reply. Ignores each user's configured ident setting.")},
 364             {"ident-daemon", tr("Enable internal ident daemon.")},
 365             {"ident-port", tr("The port quasselcore will listen at for ident requests. Only meaningful with --ident-daemon."), tr("port"), "10113"},
 366             {"oidentd", tr("Enable oidentd integration. In most cases you should also enable --strict-ident.")},
 367             {"oidentd-conffile", tr("Set path to oidentd configuration file."), tr("file")},
 368 #ifdef HAVE_SSL
 369             {"require-ssl", tr("Require SSL for remote (non-loopback) client connections.")},
 370             {"ssl-cert", tr("Specify the path to the SSL certificate."), tr("path"), "configdir/quasselCert.pem"},
 371             {"ssl-key", tr("Specify the path to the SSL key."), tr("path"), "ssl-cert-path"},
 372 #endif
 373         };
 374     }
 375
 376     // Logging options
 377     options += {
 378         {{"L", "loglevel"}, tr("Supports one of Debug|Info|Warning|Error; default is Info."), tr("level"), "Info"},
 379         {{"l", "logfile"}, tr("Log to a file."), "path"},
 380 #ifdef HAVE_SYSLOG
 381         {"syslog", tr("Log to syslog.")},
 382 #endif
 383     };
 384
 385     // Debug options
 386     options += {{"d", "debug"}, tr("Enable debug output.")};
 387     if (runMode() != RunMode::CoreOnly) {
 388         options += {
 389             {"debugbufferswitches", tr("Enables debugging for bufferswitches.")},
 390             {"debugmodel", tr("Enables debugging for models.")},
 391         };
 392     }
 393     if (runMode() != RunMode::ClientOnly) {
 394         options += {
 395             {"debug-irc", tr("Enable logging of all raw IRC messages to debug log, including passwords!  In most cases you should also set --loglevel Debug")},
 396             {"debug-irc-id", tr("Limit raw IRC logging to this network ID.  Implies --debug-irc"), tr("database network ID"), "-1"},
 397         };
 398     }
 399
 400     _cliParser.addOptions(options);
 401     _cliParser.addHelpOption();
 402     _cliParser.addVersionOption();
 403     _cliParser.setApplicationDescription(tr("Quassel IRC is a modern, distributed IRC client."));
 404
 405     // This will call ::exit() for --help, --version and in case of errors
 406     _cliParser.process(*QCoreApplication::instance());
 407 }
 408
 409
 410 QString Quassel::optionValue(const QString &key)
 411 {
 412     return instance()->_cliParser.value(key);
 413 }
 414
 415
 416 bool Quassel::isOptionSet(const QString &key)
 417 {
 418     return instance()->_cliParser.isSet(key);
 419 }
 420
 421
 422 const QString &Quassel::coreDumpFileName()
 423 {
 424     if (_coreDumpFileName.isEmpty()) {
 425         QDir configDir(configDirPath());
 426         _coreDumpFileName = configDir.absoluteFilePath(QString("Quassel-Crash-%1.log").arg(QDateTime::currentDateTime().toString("yyyyMMdd-hhmm")));
 427         QFile dumpFile(_coreDumpFileName);
 428         dumpFile.open(QIODevice::Append);
 429         QTextStream dumpStream(&dumpFile);
 430         dumpStream << "Quassel IRC: " << _buildInfo.baseVersion << ' ' << _buildInfo.commitHash << '\n';
 431         qDebug() << "Quassel IRC: " << _buildInfo.baseVersion << ' ' << _buildInfo.commitHash;
 432         dumpStream.flush();
 433         dumpFile.close();
 434     }
 435     return _coreDumpFileName;
 436 }
 437
 438
 439 QString Quassel::configDirPath()
 440 {
 441     if (!instance()->_configDirPath.isEmpty())
 442         return instance()->_configDirPath;
 443
 444     QString path;
 445     if (isOptionSet("configdir")) {
 446         path = Quassel::optionValue("configdir");
 447     }
 448     else {
 449 #ifdef Q_OS_MAC
 450         // On Mac, the path is always the same
 451         path = QDir::homePath() + "/Library/Application Support/Quassel/";
 452 #else
 453         // We abuse QSettings to find us a sensible path on the other platforms
 454 #  ifdef Q_OS_WIN
 455         // don't use the registry
 456         QSettings::Format format = QSettings::IniFormat;
 457 #  else
 458         QSettings::Format format = QSettings::NativeFormat;
 459 #  endif
 460         QSettings s(format, QSettings::UserScope, QCoreApplication::organizationDomain(), buildInfo().applicationName);
 461         QFileInfo fileInfo(s.fileName());
 462         path = fileInfo.dir().absolutePath();
 463 #endif /* Q_OS_MAC */
 464     }
 465
 466     path = QFileInfo{path}.absoluteFilePath();
 467
 468     if (!path.endsWith(QDir::separator()) && !path.endsWith('/'))
 469         path += QDir::separator();
 470
 471     QDir qDir{path};
 472     if (!qDir.exists(path)) {
 473         if (!qDir.mkpath(path)) {
 474             qCritical() << "Unable to create Quassel config directory:" << qPrintable(qDir.absolutePath());
 475             return {};
 476         }
 477     }
 478
 479     instance()->_configDirPath = path;
 480     return path;
 481 }
 482
 483
 484 QStringList Quassel::dataDirPaths()
 485 {
 486     if (!instance()->_dataDirPaths.isEmpty())
 487         return instance()->_dataDirPaths;
 488
 489     // TODO: Migrate to QStandardPaths (will require moving of the sqlite database,
 490     //       or a fallback for it being in the config dir)
 491
 492     QStringList dataDirNames;
 493 #ifdef Q_OS_WIN
 494     dataDirNames << qgetenv("APPDATA") + QCoreApplication::organizationDomain() + "/share/apps/quassel/"
 495                  << qgetenv("APPDATA") + QCoreApplication::organizationDomain()
 496                  << QCoreApplication::applicationDirPath();
 497 #elif defined Q_OS_MAC
 498     dataDirNames << QDir::homePath() + "/Library/Application Support/Quassel/"
 499                  << QCoreApplication::applicationDirPath();
 500 #else
 501     // Linux et al
 502
 503     // XDG_DATA_HOME is the location for users to override system-installed files, usually in .local/share
 504     // This should thus come first.
 505     QString xdgDataHome = QFile::decodeName(qgetenv("XDG_DATA_HOME"));
 506     if (xdgDataHome.isEmpty())
 507         xdgDataHome = QDir::homePath() + QLatin1String("/.local/share");
 508     dataDirNames << xdgDataHome;
 509
 510     // Now whatever is configured through XDG_DATA_DIRS
 511     QString xdgDataDirs = QFile::decodeName(qgetenv("XDG_DATA_DIRS"));
 512     if (xdgDataDirs.isEmpty())
 513         dataDirNames << "/usr/local/share" << "/usr/share";
 514     else
 515         dataDirNames << xdgDataDirs.split(':', QString::SkipEmptyParts);
 516
 517     // Just in case, also check our install prefix
 518     dataDirNames << QCoreApplication::applicationDirPath() + "/../share";
 519
 520     // Normalize and append our application name
 521     for (int i = 0; i < dataDirNames.count(); i++)
 522         dataDirNames[i] = QDir::cleanPath(dataDirNames.at(i)) + "/quassel/";
 523
 524 #endif
 525
 526     // Add resource path and workdir just in case.
 527     // Workdir should have precedence
 528     dataDirNames.prepend(QCoreApplication::applicationDirPath() + "/data/");
 529     dataDirNames.append(":/data/");
 530
 531     // Append trailing '/' and check for existence
 532     auto iter = dataDirNames.begin();
 533     while (iter != dataDirNames.end()) {
 534         if (!iter->endsWith(QDir::separator()) && !iter->endsWith('/'))
 535             iter->append(QDir::separator());
 536         if (!QFile::exists(*iter))
 537             iter = dataDirNames.erase(iter);
 538         else
 539             ++iter;
 540     }
 541
 542     dataDirNames.removeDuplicates();
 543
 544     instance()->_dataDirPaths = dataDirNames;
 545     return dataDirNames;
 546 }
 547
 548
 549 QString Quassel::findDataFilePath(const QString &fileName)
 550 {
 551     QStringList dataDirs = dataDirPaths();
 552     foreach(QString dataDir, dataDirs) {
 553         QString path = dataDir + fileName;
 554         if (QFile::exists(path))
 555             return path;
 556     }
 557     return QString();
 558 }
 559
 560
 561 QStringList Quassel::scriptDirPaths()
 562 {
 563     QStringList res(configDirPath() + "scripts/");
 564     foreach(QString path, dataDirPaths())
 565     res << path + "scripts/";
 566     return res;
 567 }
 568
 569
 570 QString Quassel::translationDirPath()
 571 {
 572     if (instance()->_translationDirPath.isEmpty()) {
 573         // We support only one translation dir; fallback mechanisms wouldn't work else.
 574         // This means that if we have a $data/translations dir, the internal :/i18n resource won't be considered.
 575         foreach(const QString &dir, dataDirPaths()) {
 576             if (QFile::exists(dir + "translations/")) {
 577                 instance()->_translationDirPath = dir + "translations/";
 578                 break;
 579             }
 580         }
 581         if (instance()->_translationDirPath.isEmpty())
 582             instance()->_translationDirPath = ":/i18n/";
 583     }
 584     return instance()->_translationDirPath;
 585 }
 586
 587
 588 void Quassel::loadTranslation(const QLocale &locale)
 589 {
 590     QTranslator *qtTranslator = QCoreApplication::instance()->findChild<QTranslator *>("QtTr");
 591     QTranslator *quasselTranslator = QCoreApplication::instance()->findChild<QTranslator *>("QuasselTr");
 592
 593     if (qtTranslator)
 594         qApp->removeTranslator(qtTranslator);
 595     if (quasselTranslator)
 596         qApp->removeTranslator(quasselTranslator);
 597
 598     // We use QLocale::C to indicate that we don't want a translation
 599     if (locale.language() == QLocale::C)
 600         return;
 601
 602     qtTranslator = new QTranslator(qApp);
 603     qtTranslator->setObjectName("QtTr");
 604
 605     quasselTranslator = new QTranslator(qApp);
 606     quasselTranslator->setObjectName("QuasselTr");
 607
 608 #ifndef Q_OS_MAC
 609     bool success = qtTranslator->load(locale, QString("qt_"), translationDirPath());
 610     if (!success)
 611         qtTranslator->load(locale, QString("qt_"), QLibraryInfo::location(QLibraryInfo::TranslationsPath));
 612     quasselTranslator->load(locale, QString(""), translationDirPath());
 613 #else
 614     bool success = qtTranslator->load(QString("qt_%1").arg(locale.name()), translationDirPath());
 615     if (!success)
 616         qtTranslator->load(QString("qt_%1").arg(locale.name()), QLibraryInfo::location(QLibraryInfo::TranslationsPath));
 617     quasselTranslator->load(QString("%1").arg(locale.name()), translationDirPath());
 618 #endif
 619
 620     qApp->installTranslator(quasselTranslator);
 621     qApp->installTranslator(qtTranslator);
 622 }
 623
 624
 625 // ---- Quassel::Features ---------------------------------------------------------------------------------------------
 626
 627 Quassel::Features::Features()
 628 {
 629     QStringList features;
 630
 631     // TODO Qt5: Use QMetaEnum::fromType()
 632     auto featureEnum = Quassel::staticMetaObject.enumerator(Quassel::staticMetaObject.indexOfEnumerator("Feature"));
 633     _features.resize(featureEnum.keyCount(), true);  // enable all known features to true
 634 }
 635
 636
 637 Quassel::Features::Features(const QStringList &features, LegacyFeatures legacyFeatures)
 638 {
 639     // TODO Qt5: Use QMetaEnum::fromType()
 640     auto featureEnum = Quassel::staticMetaObject.enumerator(Quassel::staticMetaObject.indexOfEnumerator("Feature"));
 641     _features.resize(featureEnum.keyCount(), false);
 642
 643     for (auto &&feature : features) {
 644         int i = featureEnum.keyToValue(qPrintable(feature));
 645         if (i >= 0) {
 646             _features[i] = true;
 647         }
 648         else {
 649             _unknownFeatures << feature;
 650         }
 651     }
 652
 653     if (legacyFeatures) {
 654         // TODO Qt5: Use QMetaEnum::fromType()
 655         auto legacyFeatureEnum = Quassel::staticMetaObject.enumerator(Quassel::staticMetaObject.indexOfEnumerator("LegacyFeature"));
 656         for (quint32 mask = 0x0001; mask <= 0x8000; mask <<=1) {
 657             if (static_cast<quint32>(legacyFeatures) & mask) {
 658                 int i = featureEnum.keyToValue(legacyFeatureEnum.valueToKey(mask));
 659                 if (i >= 0) {
 660                     _features[i] = true;
 661                 }
 662             }
 663         }
 664     }
 665 }
 666
 667
 668 bool Quassel::Features::isEnabled(Feature feature) const
 669 {
 670     size_t i = static_cast<size_t>(feature);
 671     return i < _features.size() ? _features[i] : false;
 672 }
 673
 674
 675 QStringList Quassel::Features::toStringList(bool enabled) const
 676 {
 677     // Check if any feature is enabled
 678     if (!enabled && std::all_of(_features.cbegin(), _features.cend(), [](bool feature) { return !feature; })) {
 679         return QStringList{} << "NoFeatures";
 680     }
 681
 682     QStringList result;
 683
 684     // TODO Qt5: Use QMetaEnum::fromType()
 685     auto featureEnum = Quassel::staticMetaObject.enumerator(Quassel::staticMetaObject.indexOfEnumerator("Feature"));
 686     for (quint32 i = 0; i < _features.size(); ++i) {
 687         if (_features[i] == enabled) {
 688             result << featureEnum.key(i);
 689         }
 690     }
 691     return result;
 692 }
 693
 694
 695 Quassel::LegacyFeatures Quassel::Features::toLegacyFeatures() const
 696 {
 697     // TODO Qt5: Use LegacyFeatures (flag operators for enum classes not supported in Qt4)
 698     quint32 result{0};
 699     // TODO Qt5: Use QMetaEnum::fromType()
 700     auto featureEnum = Quassel::staticMetaObject.enumerator(Quassel::staticMetaObject.indexOfEnumerator("Feature"));
 701     auto legacyFeatureEnum = Quassel::staticMetaObject.enumerator(Quassel::staticMetaObject.indexOfEnumerator("LegacyFeature"));
 702
 703     for (quint32 i = 0; i < _features.size(); ++i) {
 704         if (_features[i]) {
 705             int v = legacyFeatureEnum.keyToValue(featureEnum.key(i));
 706             if (v >= 0) {
 707                 result |= v;
 708             }
 709         }
 710     }
 711     return static_cast<LegacyFeatures>(result);
 712 }
 713
 714
 715 QStringList Quassel::Features::unknownFeatures() const
 716 {
 717     return _unknownFeatures;
 718 }