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