src/client/client.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2015 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 "client.h"
  22
  23 #include "abstractmessageprocessor.h"
  24 #include "abstractui.h"
  25 #include "bufferinfo.h"
  26 #include "buffermodel.h"
  27 #include "buffersettings.h"
  28 #include "buffersyncer.h"
  29 #include "bufferviewconfig.h"
  30 #include "bufferviewoverlay.h"
  31 #include "clientaliasmanager.h"
  32 #include "clientbacklogmanager.h"
  33 #include "clientbufferviewmanager.h"
  34 #include "clientirclisthelper.h"
  35 #include "clientidentity.h"
  36 #include "clientignorelistmanager.h"
  37 #include "clienttransfermanager.h"
  38 #include "clientuserinputhandler.h"
  39 #include "coreaccountmodel.h"
  40 #include "coreconnection.h"
  41 #include "ircchannel.h"
  42 #include "ircuser.h"
  43 #include "message.h"
  44 #include "messagemodel.h"
  45 #include "network.h"
  46 #include "networkconfig.h"
  47 #include "networkmodel.h"
  48 #include "quassel.h"
  49 #include "signalproxy.h"
  50 #include "util.h"
  51 #include "clientauthhandler.h"
  52
  53 #include <stdio.h>
  54 #include <stdlib.h>
  55
  56 QPointer<Client> Client::instanceptr = 0;
  57 Quassel::Features Client::_coreFeatures = 0;
  58
  59 /*** Initialization/destruction ***/
  60
  61 bool Client::instanceExists()
  62 {
  63     return instanceptr;
  64 }
  65
  66
  67 Client *Client::instance()
  68 {
  69     if (!instanceptr)
  70         instanceptr = new Client();
  71     return instanceptr;
  72 }
  73
  74
  75 void Client::destroy()
  76 {
  77     if (instanceptr) {
  78         delete instanceptr->mainUi();
  79         instanceptr->deleteLater();
  80         instanceptr = 0;
  81     }
  82 }
  83
  84
  85 void Client::init(AbstractUi *ui)
  86 {
  87     instance()->_mainUi = ui;
  88     instance()->init();
  89 }
  90
  91
  92 Client::Client(QObject *parent)
  93     : QObject(parent),
  94     _signalProxy(new SignalProxy(SignalProxy::Client, this)),
  95     _mainUi(0),
  96     _networkModel(0),
  97     _bufferModel(0),
  98     _bufferSyncer(0),
  99     _aliasManager(0),
 100     _backlogManager(new ClientBacklogManager(this)),
 101     _bufferViewManager(0),
 102     _bufferViewOverlay(new BufferViewOverlay(this)),
 103     _ircListHelper(new ClientIrcListHelper(this)),
 104     _inputHandler(0),
 105     _networkConfig(0),
 106     _ignoreListManager(0),
 107     _transferManager(0),
 108     _messageModel(0),
 109     _messageProcessor(0),
 110     _coreAccountModel(new CoreAccountModel(this)),
 111     _coreConnection(new CoreConnection(this)),
 112     _connected(false),
 113     _debugLog(&_debugLogBuffer)
 114 {
 115     _signalProxy->synchronize(_ircListHelper);
 116 }
 117
 118
 119 Client::~Client()
 120 {
 121     disconnectFromCore();
 122 }
 123
 124
 125 void Client::init()
 126 {
 127     _networkModel = new NetworkModel(this);
 128
 129     connect(this, SIGNAL(networkRemoved(NetworkId)),
 130         _networkModel, SLOT(networkRemoved(NetworkId)));
 131
 132     _bufferModel = new BufferModel(_networkModel);
 133     _messageModel = mainUi()->createMessageModel(this);
 134     _messageProcessor = mainUi()->createMessageProcessor(this);
 135     _inputHandler = new ClientUserInputHandler(this);
 136
 137     SignalProxy *p = signalProxy();
 138
 139     p->attachSlot(SIGNAL(displayMsg(const Message &)), this, SLOT(recvMessage(const Message &)));
 140     p->attachSlot(SIGNAL(displayStatusMsg(QString, QString)), this, SLOT(recvStatusMsg(QString, QString)));
 141
 142     p->attachSlot(SIGNAL(bufferInfoUpdated(BufferInfo)), _networkModel, SLOT(bufferUpdated(BufferInfo)));
 143     p->attachSignal(inputHandler(), SIGNAL(sendInput(BufferInfo, QString)));
 144     p->attachSignal(this, SIGNAL(requestNetworkStates()));
 145
 146     p->attachSignal(this, SIGNAL(requestCreateIdentity(const Identity &, const QVariantMap &)), SIGNAL(createIdentity(const Identity &, const QVariantMap &)));
 147     p->attachSignal(this, SIGNAL(requestRemoveIdentity(IdentityId)), SIGNAL(removeIdentity(IdentityId)));
 148     p->attachSlot(SIGNAL(identityCreated(const Identity &)), this, SLOT(coreIdentityCreated(const Identity &)));
 149     p->attachSlot(SIGNAL(identityRemoved(IdentityId)), this, SLOT(coreIdentityRemoved(IdentityId)));
 150
 151     p->attachSignal(this, SIGNAL(requestCreateNetwork(const NetworkInfo &, const QStringList &)), SIGNAL(createNetwork(const NetworkInfo &, const QStringList &)));
 152     p->attachSignal(this, SIGNAL(requestRemoveNetwork(NetworkId)), SIGNAL(removeNetwork(NetworkId)));
 153     p->attachSlot(SIGNAL(networkCreated(NetworkId)), this, SLOT(coreNetworkCreated(NetworkId)));
 154     p->attachSlot(SIGNAL(networkRemoved(NetworkId)), this, SLOT(coreNetworkRemoved(NetworkId)));
 155
 156     //connect(mainUi(), SIGNAL(connectToCore(const QVariantMap &)), this, SLOT(connectToCore(const QVariantMap &)));
 157     connect(mainUi(), SIGNAL(disconnectFromCore()), this, SLOT(disconnectFromCore()));
 158     connect(this, SIGNAL(connected()), mainUi(), SLOT(connectedToCore()));
 159     connect(this, SIGNAL(disconnected()), mainUi(), SLOT(disconnectedFromCore()));
 160
 161     // attach backlog manager
 162     p->synchronize(backlogManager());
 163     connect(backlogManager(), SIGNAL(messagesReceived(BufferId, int)), _messageModel, SLOT(messagesReceived(BufferId, int)));
 164
 165     coreAccountModel()->load();
 166
 167     connect(coreConnection(), SIGNAL(stateChanged(CoreConnection::ConnectionState)), SLOT(connectionStateChanged(CoreConnection::ConnectionState)));
 168     coreConnection()->init();
 169 }
 170
 171
 172 /*** public static methods ***/
 173
 174 AbstractUi *Client::mainUi()
 175 {
 176     return instance()->_mainUi;
 177 }
 178
 179
 180 void Client::setCoreFeatures(Quassel::Features features)
 181 {
 182     _coreFeatures = features;
 183 }
 184
 185
 186 bool Client::isConnected()
 187 {
 188     return instance()->_connected;
 189 }
 190
 191
 192 bool Client::internalCore()
 193 {
 194     return currentCoreAccount().isInternal();
 195 }
 196
 197
 198 /*** Network handling ***/
 199
 200 QList<NetworkId> Client::networkIds()
 201 {
 202     return instance()->_networks.keys();
 203 }
 204
 205
 206 const Network *Client::network(NetworkId networkid)
 207 {
 208     if (instance()->_networks.contains(networkid)) return instance()->_networks[networkid];
 209     else return 0;
 210 }
 211
 212
 213 void Client::createNetwork(const NetworkInfo &info, const QStringList &persistentChannels)
 214 {
 215     emit instance()->requestCreateNetwork(info, persistentChannels);
 216 }
 217
 218
 219 void Client::removeNetwork(NetworkId id)
 220 {
 221     emit instance()->requestRemoveNetwork(id);
 222 }
 223
 224
 225 void Client::updateNetwork(const NetworkInfo &info)
 226 {
 227     Network *netptr = instance()->_networks.value(info.networkId, 0);
 228     if (!netptr) {
 229         qWarning() << "Update for unknown network requested:" << info;
 230         return;
 231     }
 232     netptr->requestSetNetworkInfo(info);
 233 }
 234
 235
 236 void Client::addNetwork(Network *net)
 237 {
 238     net->setProxy(signalProxy());
 239     signalProxy()->synchronize(net);
 240     networkModel()->attachNetwork(net);
 241     connect(net, SIGNAL(destroyed()), instance(), SLOT(networkDestroyed()));
 242     instance()->_networks[net->networkId()] = net;
 243     emit instance()->networkCreated(net->networkId());
 244 }
 245
 246
 247 void Client::coreNetworkCreated(NetworkId id)
 248 {
 249     if (_networks.contains(id)) {
 250         qWarning() << "Creation of already existing network requested!";
 251         return;
 252     }
 253     Network *net = new Network(id, this);
 254     addNetwork(net);
 255 }
 256
 257
 258 void Client::coreNetworkRemoved(NetworkId id)
 259 {
 260     if (!_networks.contains(id))
 261         return;
 262     Network *net = _networks.take(id);
 263     emit networkRemoved(net->networkId());
 264     net->deleteLater();
 265 }
 266
 267
 268 /*** Identity handling ***/
 269
 270 QList<IdentityId> Client::identityIds()
 271 {
 272     return instance()->_identities.keys();
 273 }
 274
 275
 276 const Identity *Client::identity(IdentityId id)
 277 {
 278     if (instance()->_identities.contains(id)) return instance()->_identities[id];
 279     else return 0;
 280 }
 281
 282
 283 void Client::createIdentity(const CertIdentity &id)
 284 {
 285     QVariantMap additional;
 286 #ifdef HAVE_SSL
 287     additional["KeyPem"] = id.sslKey().toPem();
 288     additional["CertPem"] = id.sslCert().toPem();
 289 #endif
 290     emit instance()->requestCreateIdentity(id, additional);
 291 }
 292
 293
 294 void Client::updateIdentity(IdentityId id, const QVariantMap &ser)
 295 {
 296     Identity *idptr = instance()->_identities.value(id, 0);
 297     if (!idptr) {
 298         qWarning() << "Update for unknown identity requested:" << id;
 299         return;
 300     }
 301     idptr->requestUpdate(ser);
 302 }
 303
 304
 305 void Client::removeIdentity(IdentityId id)
 306 {
 307     emit instance()->requestRemoveIdentity(id);
 308 }
 309
 310
 311 void Client::coreIdentityCreated(const Identity &other)
 312 {
 313     if (!_identities.contains(other.id())) {
 314         Identity *identity = new Identity(other, this);
 315         _identities[other.id()] = identity;
 316         identity->setInitialized();
 317         signalProxy()->synchronize(identity);
 318         emit identityCreated(other.id());
 319     }
 320     else {
 321         qWarning() << tr("Identity already exists in client!");
 322     }
 323 }
 324
 325
 326 void Client::coreIdentityRemoved(IdentityId id)
 327 {
 328     if (_identities.contains(id)) {
 329         emit identityRemoved(id);
 330         Identity *i = _identities.take(id);
 331         i->deleteLater();
 332     }
 333 }
 334
 335
 336 /*** User input handling ***/
 337
 338 void Client::userInput(const BufferInfo &bufferInfo, const QString &message)
 339 {
 340     // we need to make sure that AliasManager is ready before processing input
 341     if (aliasManager() && aliasManager()->isInitialized())
 342         inputHandler()->handleUserInput(bufferInfo, message);
 343     else
 344         instance()->_userInputBuffer.append(qMakePair(bufferInfo, message));
 345 }
 346
 347
 348 void Client::sendBufferedUserInput()
 349 {
 350     for (int i = 0; i < _userInputBuffer.count(); i++)
 351         userInput(_userInputBuffer.at(i).first, _userInputBuffer.at(i).second);
 352
 353     _userInputBuffer.clear();
 354 }
 355
 356
 357 /*** core connection stuff ***/
 358
 359 void Client::connectionStateChanged(CoreConnection::ConnectionState state)
 360 {
 361     switch (state) {
 362     case CoreConnection::Disconnected:
 363         setDisconnectedFromCore();
 364         break;
 365     case CoreConnection::Synchronized:
 366         setSyncedToCore();
 367         break;
 368     default:
 369         break;
 370     }
 371 }
 372
 373
 374 void Client::setSyncedToCore()
 375 {
 376     // create buffersyncer
 377     Q_ASSERT(!_bufferSyncer);
 378     _bufferSyncer = new BufferSyncer(this);
 379     connect(bufferSyncer(), SIGNAL(lastSeenMsgSet(BufferId, MsgId)), _networkModel, SLOT(setLastSeenMsgId(BufferId, MsgId)));
 380     connect(bufferSyncer(), SIGNAL(markerLineSet(BufferId, MsgId)), _networkModel, SLOT(setMarkerLineMsgId(BufferId, MsgId)));
 381     connect(bufferSyncer(), SIGNAL(bufferRemoved(BufferId)), this, SLOT(bufferRemoved(BufferId)));
 382     connect(bufferSyncer(), SIGNAL(bufferRenamed(BufferId, QString)), this, SLOT(bufferRenamed(BufferId, QString)));
 383     connect(bufferSyncer(), SIGNAL(buffersPermanentlyMerged(BufferId, BufferId)), this, SLOT(buffersPermanentlyMerged(BufferId, BufferId)));
 384     connect(bufferSyncer(), SIGNAL(buffersPermanentlyMerged(BufferId, BufferId)), _messageModel, SLOT(buffersPermanentlyMerged(BufferId, BufferId)));
 385     connect(bufferSyncer(), SIGNAL(bufferMarkedAsRead(BufferId)), SIGNAL(bufferMarkedAsRead(BufferId)));
 386     connect(networkModel(), SIGNAL(requestSetLastSeenMsg(BufferId, MsgId)), bufferSyncer(), SLOT(requestSetLastSeenMsg(BufferId, const MsgId &)));
 387
 388     SignalProxy *p = signalProxy();
 389
 390     if ((Client::coreFeatures() & Quassel::PasswordChange)) {
 391         p->attachSignal(this, SIGNAL(clientChangePassword(QString)));
 392     }
 393
 394     p->synchronize(bufferSyncer());
 395
 396     // create a new BufferViewManager
 397     Q_ASSERT(!_bufferViewManager);
 398     _bufferViewManager = new ClientBufferViewManager(p, this);
 399     connect(_bufferViewManager, SIGNAL(initDone()), _bufferViewOverlay, SLOT(restore()));
 400
 401     // create AliasManager
 402     Q_ASSERT(!_aliasManager);
 403     _aliasManager = new ClientAliasManager(this);
 404     connect(aliasManager(), SIGNAL(initDone()), SLOT(sendBufferedUserInput()));
 405     p->synchronize(aliasManager());
 406
 407     // create NetworkConfig
 408     Q_ASSERT(!_networkConfig);
 409     _networkConfig = new NetworkConfig("GlobalNetworkConfig", this);
 410     p->synchronize(networkConfig());
 411
 412     // create IgnoreListManager
 413     Q_ASSERT(!_ignoreListManager);
 414     _ignoreListManager = new ClientIgnoreListManager(this);
 415     p->synchronize(ignoreListManager());
 416
 417     Q_ASSERT(!_transferManager);
 418     _transferManager = new ClientTransferManager(this);
 419     p->synchronize(transferManager());
 420
 421     // trigger backlog request once all active bufferviews are initialized
 422     connect(bufferViewOverlay(), SIGNAL(initDone()), this, SLOT(requestInitialBacklog()));
 423
 424     _connected = true;
 425     emit connected();
 426     emit coreConnectionStateChanged(true);
 427 }
 428
 429
 430 void Client::requestInitialBacklog()
 431 {
 432     // usually it _should_ take longer until the bufferViews are initialized, so that's what
 433     // triggers this slot. But we have to make sure that we know all buffers yet.
 434     // so we check the BufferSyncer and in case it wasn't initialized we wait for that instead
 435     if (!bufferSyncer()->isInitialized()) {
 436         disconnect(bufferViewOverlay(), SIGNAL(initDone()), this, SLOT(requestInitialBacklog()));
 437         connect(bufferSyncer(), SIGNAL(initDone()), this, SLOT(requestInitialBacklog()));
 438         return;
 439     }
 440     disconnect(bufferViewOverlay(), SIGNAL(initDone()), this, SLOT(requestInitialBacklog()));
 441     disconnect(bufferSyncer(), SIGNAL(initDone()), this, SLOT(requestInitialBacklog()));
 442
 443     _backlogManager->requestInitialBacklog();
 444 }
 445
 446
 447 void Client::disconnectFromCore()
 448 {
 449     if (!coreConnection()->isConnected())
 450         return;
 451
 452     coreConnection()->disconnectFromCore();
 453 }
 454
 455
 456 void Client::setDisconnectedFromCore()
 457 {
 458     _connected = false;
 459     _coreFeatures = 0;
 460
 461     emit disconnected();
 462     emit coreConnectionStateChanged(false);
 463
 464     backlogManager()->reset();
 465     messageProcessor()->reset();
 466
 467     // Clear internal data. Hopefully nothing relies on it at this point.
 468
 469     if (_bufferSyncer) {
 470         _bufferSyncer->deleteLater();
 471         _bufferSyncer = 0;
 472     }
 473
 474     if (_bufferViewManager) {
 475         _bufferViewManager->deleteLater();
 476         _bufferViewManager = 0;
 477     }
 478
 479     _bufferViewOverlay->reset();
 480
 481     if (_aliasManager) {
 482         _aliasManager->deleteLater();
 483         _aliasManager = 0;
 484     }
 485
 486     if (_ignoreListManager) {
 487         _ignoreListManager->deleteLater();
 488         _ignoreListManager = 0;
 489     }
 490
 491     if (_transferManager) {
 492         _transferManager->deleteLater();
 493         _transferManager = 0;
 494     }
 495
 496     // we probably don't want to save pending input for reconnect
 497     _userInputBuffer.clear();
 498
 499     _messageModel->clear();
 500     _networkModel->clear();
 501
 502     QHash<NetworkId, Network *>::iterator netIter = _networks.begin();
 503     while (netIter != _networks.end()) {
 504         Network *net = netIter.value();
 505         emit networkRemoved(net->networkId());
 506         disconnect(net, SIGNAL(destroyed()), this, 0);
 507         netIter = _networks.erase(netIter);
 508         net->deleteLater();
 509     }
 510     Q_ASSERT(_networks.isEmpty());
 511
 512     QHash<IdentityId, Identity *>::iterator idIter = _identities.begin();
 513     while (idIter != _identities.end()) {
 514         emit identityRemoved(idIter.key());
 515         Identity *id = idIter.value();
 516         idIter = _identities.erase(idIter);
 517         id->deleteLater();
 518     }
 519     Q_ASSERT(_identities.isEmpty());
 520
 521     if (_networkConfig) {
 522         _networkConfig->deleteLater();
 523         _networkConfig = 0;
 524     }
 525 }
 526
 527
 528 /*** ***/
 529
 530 void Client::networkDestroyed()
 531 {
 532     Network *net = static_cast<Network *>(sender());
 533     QHash<NetworkId, Network *>::iterator netIter = _networks.begin();
 534     while (netIter != _networks.end()) {
 535         if (*netIter == net) {
 536             netIter = _networks.erase(netIter);
 537             break;
 538         }
 539         else {
 540             netIter++;
 541         }
 542     }
 543 }
 544
 545
 546 // Hmm... we never used this...
 547 void Client::recvStatusMsg(QString /*net*/, QString /*msg*/)
 548 {
 549     //recvMessage(net, Message::server("", QString("[STATUS] %1").arg(msg)));
 550 }
 551
 552
 553 void Client::recvMessage(const Message &msg)
 554 {
 555     Message msg_ = msg;
 556     messageProcessor()->process(msg_);
 557 }
 558
 559
 560 void Client::setBufferLastSeenMsg(BufferId id, const MsgId &msgId)
 561 {
 562     if (bufferSyncer())
 563         bufferSyncer()->requestSetLastSeenMsg(id, msgId);
 564 }
 565
 566
 567 void Client::setMarkerLine(BufferId id, const MsgId &msgId)
 568 {
 569     if (bufferSyncer())
 570         bufferSyncer()->requestSetMarkerLine(id, msgId);
 571 }
 572
 573
 574 MsgId Client::markerLine(BufferId id)
 575 {
 576     if (id.isValid() && networkModel())
 577         return networkModel()->markerLineMsgId(id);
 578     return MsgId();
 579 }
 580
 581
 582 void Client::removeBuffer(BufferId id)
 583 {
 584     if (!bufferSyncer()) return;
 585     bufferSyncer()->requestRemoveBuffer(id);
 586 }
 587
 588
 589 void Client::renameBuffer(BufferId bufferId, const QString &newName)
 590 {
 591     if (!bufferSyncer())
 592         return;
 593     bufferSyncer()->requestRenameBuffer(bufferId, newName);
 594 }
 595
 596
 597 void Client::mergeBuffersPermanently(BufferId bufferId1, BufferId bufferId2)
 598 {
 599     if (!bufferSyncer())
 600         return;
 601     bufferSyncer()->requestMergeBuffersPermanently(bufferId1, bufferId2);
 602 }
 603
 604
 605 void Client::purgeKnownBufferIds()
 606 {
 607     if (!bufferSyncer())
 608         return;
 609     bufferSyncer()->requestPurgeBufferIds();
 610 }
 611
 612
 613 void Client::bufferRemoved(BufferId bufferId)
 614 {
 615     // select a sane buffer (status buffer)
 616     /* we have to manually select a buffer because otherwise inconsitent changes
 617      * to the model might occur:
 618      * the result of a buffer removal triggers a change in the selection model.
 619      * the newly selected buffer might be a channel that hasn't been selected yet
 620      * and a new nickview would be created (which never heard of the "rowsAboutToBeRemoved").
 621      * this new view (and/or) its sort filter will then only receive a "rowsRemoved" signal.
 622      */
 623     QModelIndex current = bufferModel()->currentIndex();
 624     if (current.data(NetworkModel::BufferIdRole).value<BufferId>() == bufferId) {
 625         bufferModel()->setCurrentIndex(current.sibling(0, 0));
 626     }
 627
 628     // and remove it from the model
 629     networkModel()->removeBuffer(bufferId);
 630 }
 631
 632
 633 void Client::bufferRenamed(BufferId bufferId, const QString &newName)
 634 {
 635     QModelIndex bufferIndex = networkModel()->bufferIndex(bufferId);
 636     if (bufferIndex.isValid()) {
 637         networkModel()->setData(bufferIndex, newName, Qt::DisplayRole);
 638     }
 639 }
 640
 641
 642 void Client::buffersPermanentlyMerged(BufferId bufferId1, BufferId bufferId2)
 643 {
 644     QModelIndex idx = networkModel()->bufferIndex(bufferId1);
 645     bufferModel()->setCurrentIndex(bufferModel()->mapFromSource(idx));
 646     networkModel()->removeBuffer(bufferId2);
 647 }
 648
 649
 650 void Client::markBufferAsRead(BufferId id)
 651 {
 652     if (bufferSyncer() && id.isValid())
 653         bufferSyncer()->requestMarkBufferAsRead(id);
 654 }
 655
 656 void Client::changePassword(QString newPassword) {
 657     CoreAccount account = currentCoreAccount();
 658     account.setPassword(newPassword);
 659     coreAccountModel()->createOrUpdateAccount(account);
 660     emit clientChangePassword(newPassword);
 661 }
 662
 663
 664 #if QT_VERSION < 0x050000
 665 void Client::logMessage(QtMsgType type, const char *msg)
 666 {
 667     fprintf(stderr, "%s\n", msg);
 668     fflush(stderr);
 669     if (type == QtFatalMsg) {
 670         Quassel::logFatalMessage(msg);
 671     }
 672     else {
 673         QString msgString = QString("%1\n").arg(msg);
 674
 675         //Check to see if there is an instance around, else we risk recursions
 676         //when calling instance() and creating new ones.
 677         if (!instanceExists())
 678             return;
 679
 680         instance()->_debugLog << msgString;
 681         emit instance()->logUpdated(msgString);
 682     }
 683 }
 684 #else
 685 void Client::logMessage(QtMsgType type, const QMessageLogContext &context, const QString &msg)
 686 {
 687     Q_UNUSED(context);
 688
 689     fprintf(stderr, "%s\n", msg.toLocal8Bit().constData());
 690     fflush(stderr);
 691     if (type == QtFatalMsg) {
 692         Quassel::logFatalMessage(msg.toLocal8Bit().constData());
 693     }
 694     else {
 695         QString msgString = QString("%1\n").arg(msg);
 696
 697         //Check to see if there is an instance around, else we risk recursions
 698         //when calling instance() and creating new ones.
 699         if (!instanceExists())
 700             return;
 701
 702         instance()->_debugLog << msgString;
 703         emit instance()->logUpdated(msgString);
 704     }
 705 }
 706 #endif