src/core/coresession.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 "coresession.h"
  22
  23 #include <QtScript>
  24
  25 #include "core.h"
  26 #include "coreuserinputhandler.h"
  27 #include "corebuffersyncer.h"
  28 #include "corebacklogmanager.h"
  29 #include "corebufferviewmanager.h"
  30 #include "coredccconfig.h"
  31 #include "coreeventmanager.h"
  32 #include "coreidentity.h"
  33 #include "coreignorelistmanager.h"
  34 #include "coreirclisthelper.h"
  35 #include "corenetwork.h"
  36 #include "corenetworkconfig.h"
  37 #include "coresessioneventprocessor.h"
  38 #include "coretransfermanager.h"
  39 #include "coreusersettings.h"
  40 #include "ctcpparser.h"
  41 #include "eventstringifier.h"
  42 #include "internalpeer.h"
  43 #include "ircchannel.h"
  44 #include "ircparser.h"
  45 #include "ircuser.h"
  46 #include "logger.h"
  47 #include "messageevent.h"
  48 #include "remotepeer.h"
  49 #include "storage.h"
  50 #include "util.h"
  51
  52
  53 class ProcessMessagesEvent : public QEvent
  54 {
  55 public:
  56     ProcessMessagesEvent() : QEvent(QEvent::User) {}
  57 };
  58
  59
  60 CoreSession::CoreSession(UserId uid, bool restoreState, QObject *parent)
  61     : QObject(parent),
  62     _user(uid),
  63     _signalProxy(new SignalProxy(SignalProxy::Server, this)),
  64     _aliasManager(this),
  65     _bufferSyncer(new CoreBufferSyncer(this)),
  66     _backlogManager(new CoreBacklogManager(this)),
  67     _bufferViewManager(new CoreBufferViewManager(_signalProxy, this)),
  68     _dccConfig(new CoreDccConfig(this)),
  69     _ircListHelper(new CoreIrcListHelper(this)),
  70     _networkConfig(new CoreNetworkConfig("GlobalNetworkConfig", this)),
  71     _coreInfo(this),
  72     _transferManager(new CoreTransferManager(this)),
  73     _eventManager(new CoreEventManager(this)),
  74     _eventStringifier(new EventStringifier(this)),
  75     _sessionEventProcessor(new CoreSessionEventProcessor(this)),
  76     _ctcpParser(new CtcpParser(this)),
  77     _ircParser(new IrcParser(this)),
  78     scriptEngine(new QScriptEngine(this)),
  79     _processMessages(false),
  80     _ignoreListManager(this),
  81     _highlightRuleManager(this)
  82 {
  83     SignalProxy *p = signalProxy();
  84     p->setHeartBeatInterval(30);
  85     p->setMaxHeartBeatCount(60); // 30 mins until we throw a dead socket out
  86
  87     connect(p, SIGNAL(peerRemoved(Peer*)), SLOT(removeClient(Peer*)));
  88
  89     connect(p, SIGNAL(connected()), SLOT(clientsConnected()));
  90     connect(p, SIGNAL(disconnected()), SLOT(clientsDisconnected()));
  91
  92     p->attachSlot(SIGNAL(sendInput(BufferInfo, QString)), this, SLOT(msgFromClient(BufferInfo, QString)));
  93     p->attachSignal(this, SIGNAL(displayMsg(Message)));
  94     p->attachSignal(this, SIGNAL(displayStatusMsg(QString, QString)));
  95
  96     p->attachSignal(this, SIGNAL(identityCreated(const Identity &)));
  97     p->attachSignal(this, SIGNAL(identityRemoved(IdentityId)));
  98     p->attachSlot(SIGNAL(createIdentity(const Identity &, const QVariantMap &)), this, SLOT(createIdentity(const Identity &, const QVariantMap &)));
  99     p->attachSlot(SIGNAL(removeIdentity(IdentityId)), this, SLOT(removeIdentity(IdentityId)));
 100
 101     p->attachSignal(this, SIGNAL(networkCreated(NetworkId)));
 102     p->attachSignal(this, SIGNAL(networkRemoved(NetworkId)));
 103     p->attachSlot(SIGNAL(createNetwork(const NetworkInfo &, const QStringList &)), this, SLOT(createNetwork(const NetworkInfo &, const QStringList &)));
 104     p->attachSlot(SIGNAL(removeNetwork(NetworkId)), this, SLOT(removeNetwork(NetworkId)));
 105
 106     p->attachSlot(SIGNAL(changePassword(PeerPtr,QString,QString,QString)), this, SLOT(changePassword(PeerPtr,QString,QString,QString)));
 107     p->attachSignal(this, SIGNAL(passwordChanged(PeerPtr,bool)));
 108
 109     p->attachSlot(SIGNAL(kickClient(int)), this, SLOT(kickClient(int)));
 110     p->attachSignal(this, SIGNAL(disconnectFromCore()));
 111
 112     loadSettings();
 113     initScriptEngine();
 114
 115     eventManager()->registerObject(ircParser(), EventManager::NormalPriority);
 116     eventManager()->registerObject(sessionEventProcessor(), EventManager::HighPriority); // needs to process events *before* the stringifier!
 117     eventManager()->registerObject(ctcpParser(), EventManager::NormalPriority);
 118     eventManager()->registerObject(eventStringifier(), EventManager::NormalPriority);
 119     eventManager()->registerObject(this, EventManager::LowPriority); // for sending MessageEvents to the client
 120     // some events need to be handled after msg generation
 121     eventManager()->registerObject(sessionEventProcessor(), EventManager::LowPriority, "lateProcess");
 122     eventManager()->registerObject(ctcpParser(), EventManager::LowPriority, "send");
 123
 124     // periodically save our session state
 125     connect(&(Core::instance()->syncTimer()), SIGNAL(timeout()), this, SLOT(saveSessionState()));
 126
 127     p->synchronize(_bufferSyncer);
 128     p->synchronize(&aliasManager());
 129     p->synchronize(_backlogManager);
 130     p->synchronize(dccConfig());
 131     p->synchronize(ircListHelper());
 132     p->synchronize(networkConfig());
 133     p->synchronize(&_coreInfo);
 134     p->synchronize(&_ignoreListManager);
 135     p->synchronize(&_highlightRuleManager);
 136     p->synchronize(transferManager());
 137     // Restore session state
 138     if (restoreState)
 139         restoreSessionState();
 140
 141     emit initialized();
 142 }
 143
 144
 145 CoreSession::~CoreSession()
 146 {
 147     saveSessionState();
 148
 149     /* Why partially duplicate CoreNetwork destructor?  When each CoreNetwork quits in the
 150      * destructor, disconnections are processed in sequence for each object.  For many IRC servers
 151      * on a slow network, this could significantly delay core shutdown [msecs wait * network count].
 152      *
 153      * Here, CoreSession first calls disconnect on all networks, letting them all start
 154      * disconnecting before beginning to sequentially wait for each network.  Ideally, after the
 155      * first network is disconnected, the other networks will have already closed.  Worst-case may
 156      * still wait [msecs wait time * num. of networks], but the risk should be much lower.
 157      *
 158      * CoreNetwork should still do cleanup in its own destructor in case a network is deleted
 159      * outside of deleting the whole CoreSession.
 160      *
 161      * If this proves to be problematic in the future, there's an alternative Qt signal-based system
 162      * implemented in another pull request that guarentees a maximum amount of time to disconnect,
 163      * but at the cost of more complex code.
 164      *
 165      * See https://github.com/quassel/quassel/pull/203
 166      */
 167
 168     foreach(CoreNetwork *net, _networks.values()) {
 169         // Request each network properly disconnect, but don't count as user-requested disconnect
 170         if (net->socketConnected()) {
 171             // Only try if the socket's fully connected (not initializing or disconnecting).
 172             // Force an immediate disconnect, jumping the command queue.  Ensures the proper QUIT is
 173             // shown even if other messages are queued.
 174             net->disconnectFromIrc(false, QString(), false, true);
 175         }
 176     }
 177
 178     // Process the putCmd events that trigger the quit.  Without this, shutting down the core
 179     // results in abrubtly closing the socket rather than sending the QUIT as expected.
 180     QCoreApplication::processEvents();
 181
 182     foreach(CoreNetwork *net, _networks.values()) {
 183         // Wait briefly for each network to disconnect.  Sometimes it takes a little while to send.
 184         if (!net->forceDisconnect()) {
 185             qWarning() << "Timed out quitting network" << net->networkName() <<
 186                           "(user ID " << net->userId() << ")";
 187         }
 188         // Delete the network now that it's closed
 189         delete net;
 190     }
 191 }
 192
 193
 194 CoreNetwork *CoreSession::network(NetworkId id) const
 195 {
 196     if (_networks.contains(id)) return _networks[id];
 197     return 0;
 198 }
 199
 200
 201 CoreIdentity *CoreSession::identity(IdentityId id) const
 202 {
 203     if (_identities.contains(id)) return _identities[id];
 204     return 0;
 205 }
 206
 207
 208 void CoreSession::loadSettings()
 209 {
 210     CoreUserSettings s(user());
 211
 212     // migrate to db
 213     QList<IdentityId> ids = s.identityIds();
 214     QList<NetworkInfo> networkInfos = Core::networks(user());
 215     foreach(IdentityId id, ids) {
 216         CoreIdentity identity(s.identity(id));
 217         IdentityId newId = Core::createIdentity(user(), identity);
 218         QList<NetworkInfo>::iterator networkIter = networkInfos.begin();
 219         while (networkIter != networkInfos.end()) {
 220             if (networkIter->identity == id) {
 221                 networkIter->identity = newId;
 222                 Core::updateNetwork(user(), *networkIter);
 223                 networkIter = networkInfos.erase(networkIter);
 224             }
 225             else {
 226                 ++networkIter;
 227             }
 228         }
 229         s.removeIdentity(id);
 230     }
 231     // end of migration
 232
 233     foreach(CoreIdentity identity, Core::identities(user())) {
 234         createIdentity(identity);
 235     }
 236
 237     foreach(NetworkInfo info, Core::networks(user())) {
 238         createNetwork(info);
 239     }
 240 }
 241
 242
 243 void CoreSession::saveSessionState() const
 244 {
 245     _bufferSyncer->storeDirtyIds();
 246     _bufferViewManager->saveBufferViews();
 247     _networkConfig->save();
 248 }
 249
 250
 251 void CoreSession::restoreSessionState()
 252 {
 253     QList<NetworkId> nets = Core::connectedNetworks(user());
 254     CoreNetwork *net = 0;
 255     foreach(NetworkId id, nets) {
 256         net = network(id);
 257         Q_ASSERT(net);
 258         net->connectToIrc();
 259     }
 260 }
 261
 262
 263 void CoreSession::addClient(RemotePeer *peer)
 264 {
 265     signalProxy()->setTargetPeer(peer);
 266
 267     peer->dispatch(sessionState());
 268     signalProxy()->addPeer(peer);
 269
 270     signalProxy()->setTargetPeer(nullptr);
 271 }
 272
 273
 274 void CoreSession::addClient(InternalPeer *peer)
 275 {
 276     signalProxy()->addPeer(peer);
 277     emit sessionState(sessionState());
 278 }
 279
 280
 281 void CoreSession::removeClient(Peer *peer)
 282 {
 283     RemotePeer *p = qobject_cast<RemotePeer *>(peer);
 284     if (p)
 285         quInfo() << qPrintable(tr("Client")) << p->description() << qPrintable(tr("disconnected (UserId: %1).").arg(user().toInt()));
 286 }
 287
 288
 289 QHash<QString, QString> CoreSession::persistentChannels(NetworkId id) const
 290 {
 291     return Core::persistentChannels(user(), id);
 292 }
 293
 294
 295 QHash<QString, QByteArray> CoreSession::bufferCiphers(NetworkId id) const
 296 {
 297     return Core::bufferCiphers(user(), id);
 298 }
 299
 300 void CoreSession::setBufferCipher(NetworkId id, const QString &bufferName, const QByteArray &cipher) const
 301 {
 302     Core::setBufferCipher(user(), id, bufferName, cipher);
 303 }
 304
 305
 306 // FIXME switch to BufferId
 307 void CoreSession::msgFromClient(BufferInfo bufinfo, QString msg)
 308 {
 309     CoreNetwork *net = network(bufinfo.networkId());
 310     if (net) {
 311         net->userInput(bufinfo, msg);
 312     }
 313     else {
 314         qWarning() << "Trying to send to unconnected network:" << msg;
 315     }
 316 }
 317
 318
 319 // ALL messages coming pass through these functions before going to the GUI.
 320 // So this is the perfect place for storing the backlog and log stuff.
 321 void CoreSession::recvMessageFromServer(NetworkId networkId, Message::Type type, BufferInfo::Type bufferType,
 322     const QString &target, const QString &text_, const QString &sender, Message::Flags flags)
 323 {
 324     // U+FDD0 and U+FDD1 are special characters for Qt's text engine, specifically they mark the boundaries of
 325     // text frames in a QTextDocument. This might lead to problems in widgets displaying QTextDocuments (such as
 326     // KDE's notifications), hence we remove those just to be safe.
 327     QString text = text_;
 328     text.remove(QChar(0xfdd0)).remove(QChar(0xfdd1));
 329     RawMessage rawMsg(networkId, type, bufferType, target, text, sender, flags);
 330
 331     // check for HardStrictness ignore
 332     CoreNetwork *currentNetwork = network(networkId);
 333     QString networkName = currentNetwork ? currentNetwork->networkName() : QString("");
 334     if (_ignoreListManager.match(rawMsg, networkName) == IgnoreListManager::HardStrictness)
 335         return;
 336
 337     if (_highlightRuleManager.match(rawMsg, currentNetwork->myNick(), currentNetwork->identityPtr()->nicks()))
 338         rawMsg.flags |= Message::Flag::Highlight;
 339
 340     _messageQueue << rawMsg;
 341     if (!_processMessages) {
 342         _processMessages = true;
 343         QCoreApplication::postEvent(this, new ProcessMessagesEvent());
 344     }
 345 }
 346
 347
 348 void CoreSession::recvStatusMsgFromServer(QString msg)
 349 {
 350     CoreNetwork *net = qobject_cast<CoreNetwork *>(sender());
 351     Q_ASSERT(net);
 352     emit displayStatusMsg(net->networkName(), msg);
 353 }
 354
 355
 356 void CoreSession::processMessageEvent(MessageEvent *event)
 357 {
 358     recvMessageFromServer(event->networkId(), event->msgType(), event->bufferType(),
 359         event->target().isNull() ? "" : event->target(),
 360         event->text().isNull() ? "" : event->text(),
 361         event->sender().isNull() ? "" : event->sender(),
 362         event->msgFlags());
 363 }
 364
 365
 366 QList<BufferInfo> CoreSession::buffers() const
 367 {
 368     return Core::requestBuffers(user());
 369 }
 370
 371
 372 void CoreSession::customEvent(QEvent *event)
 373 {
 374     if (event->type() != QEvent::User)
 375         return;
 376
 377     processMessages();
 378     event->accept();
 379 }
 380
 381
 382 void CoreSession::processMessages()
 383 {
 384     if (_messageQueue.count() == 1) {
 385         const RawMessage &rawMsg = _messageQueue.first();
 386         bool createBuffer = !(rawMsg.flags & Message::Redirected);
 387         BufferInfo bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, rawMsg.bufferType, rawMsg.target, createBuffer);
 388         if (!bufferInfo.isValid()) {
 389             Q_ASSERT(!createBuffer);
 390             bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, BufferInfo::StatusBuffer, "");
 391         }
 392         Message msg(bufferInfo, rawMsg.type, rawMsg.text, rawMsg.sender, senderPrefixes(rawMsg.sender, bufferInfo),
 393                     realName(rawMsg.sender, rawMsg.networkId),  avatarUrl(rawMsg.sender, rawMsg.networkId),
 394                     rawMsg.flags);
 395         if(Core::storeMessage(msg))
 396             emit displayMsg(msg);
 397     }
 398     else {
 399         QHash<NetworkId, QHash<QString, BufferInfo> > bufferInfoCache;
 400         MessageList messages;
 401         QList<RawMessage> redirectedMessages; // list of Messages which don't enforce a buffer creation
 402         BufferInfo bufferInfo;
 403         for (int i = 0; i < _messageQueue.count(); i++) {
 404             const RawMessage &rawMsg = _messageQueue.at(i);
 405             if (bufferInfoCache.contains(rawMsg.networkId) && bufferInfoCache[rawMsg.networkId].contains(rawMsg.target)) {
 406                 bufferInfo = bufferInfoCache[rawMsg.networkId][rawMsg.target];
 407             }
 408             else {
 409                 bool createBuffer = !(rawMsg.flags & Message::Redirected);
 410                 bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, rawMsg.bufferType, rawMsg.target, createBuffer);
 411                 if (!bufferInfo.isValid()) {
 412                     Q_ASSERT(!createBuffer);
 413                     redirectedMessages << rawMsg;
 414                     continue;
 415                 }
 416                 bufferInfoCache[rawMsg.networkId][rawMsg.target] = bufferInfo;
 417             }
 418             Message msg(bufferInfo, rawMsg.type, rawMsg.text, rawMsg.sender, senderPrefixes(rawMsg.sender, bufferInfo),
 419                         realName(rawMsg.sender, rawMsg.networkId),  avatarUrl(rawMsg.sender, rawMsg.networkId),
 420                         rawMsg.flags);
 421             messages << msg;
 422         }
 423
 424         // recheck if there exists a buffer to store a redirected message in
 425         for (int i = 0; i < redirectedMessages.count(); i++) {
 426             const RawMessage &rawMsg = redirectedMessages.at(i);
 427             if (bufferInfoCache.contains(rawMsg.networkId) && bufferInfoCache[rawMsg.networkId].contains(rawMsg.target)) {
 428                 bufferInfo = bufferInfoCache[rawMsg.networkId][rawMsg.target];
 429             }
 430             else {
 431                 // no luck -> we store them in the StatusBuffer
 432                 bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, BufferInfo::StatusBuffer, "");
 433                 // add the StatusBuffer to the Cache in case there are more Messages for the original target
 434                 bufferInfoCache[rawMsg.networkId][rawMsg.target] = bufferInfo;
 435             }
 436             Message msg(bufferInfo, rawMsg.type, rawMsg.text, rawMsg.sender, senderPrefixes(rawMsg.sender, bufferInfo),
 437                         realName(rawMsg.sender, rawMsg.networkId),  avatarUrl(rawMsg.sender, rawMsg.networkId),
 438                         rawMsg.flags);
 439             messages << msg;
 440         }
 441
 442         if(Core::storeMessages(messages)) {
 443             // FIXME: extend protocol to a displayMessages(MessageList)
 444             for (int i = 0; i < messages.count(); i++) {
 445                 emit displayMsg(messages[i]);
 446             }
 447         }
 448     }
 449     _processMessages = false;
 450     _messageQueue.clear();
 451 }
 452
 453 QString CoreSession::senderPrefixes(const QString &sender, const BufferInfo &bufferInfo) const
 454 {
 455     CoreNetwork *currentNetwork = network(bufferInfo.networkId());
 456     if (!currentNetwork) {
 457         return {};
 458     }
 459
 460     if (bufferInfo.type() != BufferInfo::ChannelBuffer) {
 461         return {};
 462     }
 463
 464     IrcChannel *currentChannel = currentNetwork->ircChannel(bufferInfo.bufferName());
 465     if (!currentChannel) {
 466         return {};
 467     }
 468
 469     const QString modes = currentChannel->userModes(nickFromMask(sender).toLower());
 470     return currentNetwork->modesToPrefixes(modes);
 471 }
 472
 473 QString CoreSession::realName(const QString &sender, NetworkId networkId) const
 474 {
 475     CoreNetwork *currentNetwork = network(networkId);
 476     if (!currentNetwork) {
 477         return {};
 478     }
 479
 480     IrcUser *currentUser = currentNetwork->ircUser(nickFromMask(sender));
 481     if (!currentUser) {
 482         return {};
 483     }
 484
 485     return currentUser->realName();
 486 }
 487
 488 QString CoreSession::avatarUrl(const QString &sender, NetworkId networkId) const
 489 {
 490     Q_UNUSED(sender);
 491     Q_UNUSED(networkId);
 492     // Currently we do not have a way to retrieve this value yet.
 493     //
 494     // This likely will require implementing IRCv3's METADATA spec.
 495     // See https://ircv3.net/irc/
 496     // And https://blog.irccloud.com/avatars/
 497     return "";
 498 }
 499
 500 Protocol::SessionState CoreSession::sessionState() const
 501 {
 502     QVariantList bufferInfos;
 503     QVariantList networkIds;
 504     QVariantList identities;
 505
 506     foreach(const BufferInfo &id, buffers())
 507         bufferInfos << QVariant::fromValue(id);
 508     foreach(const NetworkId &id, _networks.keys())
 509         networkIds << QVariant::fromValue(id);
 510     foreach(const Identity *i, _identities.values())
 511         identities << QVariant::fromValue(*i);
 512
 513     return Protocol::SessionState(identities, bufferInfos, networkIds);
 514 }
 515
 516
 517 void CoreSession::initScriptEngine()
 518 {
 519     signalProxy()->attachSlot(SIGNAL(scriptRequest(QString)), this, SLOT(scriptRequest(QString)));
 520     signalProxy()->attachSignal(this, SIGNAL(scriptResult(QString)));
 521
 522     // FIXME
 523     //QScriptValue storage_ = scriptEngine->newQObject(storage);
 524     //scriptEngine->globalObject().setProperty("storage", storage_);
 525 }
 526
 527
 528 void CoreSession::scriptRequest(QString script)
 529 {
 530     emit scriptResult(scriptEngine->evaluate(script).toString());
 531 }
 532
 533
 534 /*** Identity Handling ***/
 535 void CoreSession::createIdentity(const Identity &identity, const QVariantMap &additional)
 536 {
 537 #ifndef HAVE_SSL
 538     Q_UNUSED(additional)
 539 #endif
 540
 541     CoreIdentity coreIdentity(identity);
 542 #ifdef HAVE_SSL
 543     if (additional.contains("KeyPem"))
 544         coreIdentity.setSslKey(additional["KeyPem"].toByteArray());
 545     if (additional.contains("CertPem"))
 546         coreIdentity.setSslCert(additional["CertPem"].toByteArray());
 547 #endif
 548     qDebug() << Q_FUNC_INFO;
 549     IdentityId id = Core::createIdentity(user(), coreIdentity);
 550     if (!id.isValid())
 551         return;
 552     else
 553         createIdentity(coreIdentity);
 554 }
 555
 556 const QString CoreSession::strictSysident() {
 557     return Core::instance()->strictSysIdent(_user);
 558 }
 559
 560 void CoreSession::createIdentity(const CoreIdentity &identity)
 561 {
 562     CoreIdentity *coreIdentity = new CoreIdentity(identity, this);
 563     _identities[identity.id()] = coreIdentity;
 564     // CoreIdentity has its own synchronize method since its "private" sslManager needs to be synced as well
 565     coreIdentity->synchronize(signalProxy());
 566     connect(coreIdentity, SIGNAL(updated()), this, SLOT(updateIdentityBySender()));
 567     emit identityCreated(*coreIdentity);
 568 }
 569
 570
 571 void CoreSession::updateIdentityBySender()
 572 {
 573     CoreIdentity *identity = qobject_cast<CoreIdentity *>(sender());
 574     if (!identity)
 575         return;
 576     Core::updateIdentity(user(), *identity);
 577 }
 578
 579
 580 void CoreSession::removeIdentity(IdentityId id)
 581 {
 582     CoreIdentity *identity = _identities.take(id);
 583     if (identity) {
 584         emit identityRemoved(id);
 585         Core::removeIdentity(user(), id);
 586         identity->deleteLater();
 587     }
 588 }
 589
 590
 591 /*** Network Handling ***/
 592
 593 void CoreSession::createNetwork(const NetworkInfo &info_, const QStringList &persistentChans)
 594 {
 595     NetworkInfo info = info_;
 596     int id;
 597
 598     if (!info.networkId.isValid())
 599         Core::createNetwork(user(), info);
 600
 601     if (!info.networkId.isValid()) {
 602         qWarning() << qPrintable(tr("CoreSession::createNetwork(): Got invalid networkId from Core when trying to create network %1!").arg(info.networkName));
 603         return;
 604     }
 605
 606     id = info.networkId.toInt();
 607     if (!_networks.contains(id)) {
 608         // create persistent chans
 609         QRegExp rx("\\s*(\\S+)(?:\\s*(\\S+))?\\s*");
 610         foreach(QString channel, persistentChans) {
 611             if (!rx.exactMatch(channel)) {
 612                 qWarning() << QString("Invalid persistent channel declaration: %1").arg(channel);
 613                 continue;
 614             }
 615             Core::bufferInfo(user(), info.networkId, BufferInfo::ChannelBuffer, rx.cap(1), true);
 616             Core::setChannelPersistent(user(), info.networkId, rx.cap(1), true);
 617             if (!rx.cap(2).isEmpty())
 618                 Core::setPersistentChannelKey(user(), info.networkId, rx.cap(1), rx.cap(2));
 619         }
 620
 621         CoreNetwork *net = new CoreNetwork(id, this);
 622         connect(net, SIGNAL(displayMsg(NetworkId, Message::Type, BufferInfo::Type, const QString &, const QString &, const QString &, Message::Flags)),
 623             SLOT(recvMessageFromServer(NetworkId, Message::Type, BufferInfo::Type, const QString &, const QString &, const QString &, Message::Flags)));
 624         connect(net, SIGNAL(displayStatusMsg(QString)), SLOT(recvStatusMsgFromServer(QString)));
 625         connect(net, SIGNAL(disconnected(NetworkId)), SIGNAL(networkDisconnected(NetworkId)));
 626
 627         net->setNetworkInfo(info);
 628         net->setProxy(signalProxy());
 629         _networks[id] = net;
 630         signalProxy()->synchronize(net);
 631         emit networkCreated(id);
 632     }
 633     else {
 634         qWarning() << qPrintable(tr("CoreSession::createNetwork(): Trying to create a network that already exists, updating instead!"));
 635         _networks[info.networkId]->requestSetNetworkInfo(info);
 636     }
 637 }
 638
 639
 640 void CoreSession::removeNetwork(NetworkId id)
 641 {
 642     // Make sure the network is disconnected!
 643     CoreNetwork *net = network(id);
 644     if (!net)
 645         return;
 646
 647     if (net->connectionState() != Network::Disconnected) {
 648         // make sure we no longer receive data from the tcp buffer
 649         disconnect(net, SIGNAL(displayMsg(NetworkId, Message::Type, BufferInfo::Type, const QString &, const QString &, const QString &, Message::Flags)), this, 0);
 650         disconnect(net, SIGNAL(displayStatusMsg(QString)), this, 0);
 651         connect(net, SIGNAL(disconnected(NetworkId)), this, SLOT(destroyNetwork(NetworkId)));
 652         net->disconnectFromIrc();
 653     }
 654     else {
 655         destroyNetwork(id);
 656     }
 657 }
 658
 659
 660 void CoreSession::destroyNetwork(NetworkId id)
 661 {
 662     QList<BufferId> removedBuffers = Core::requestBufferIdsForNetwork(user(), id);
 663     Network *net = _networks.take(id);
 664     if (net && Core::removeNetwork(user(), id)) {
 665         // make sure that all unprocessed RawMessages from this network are removed
 666         QList<RawMessage>::iterator messageIter = _messageQueue.begin();
 667         while (messageIter != _messageQueue.end()) {
 668             if (messageIter->networkId == id) {
 669                 messageIter = _messageQueue.erase(messageIter);
 670             }
 671             else {
 672                 ++messageIter;
 673             }
 674         }
 675         // remove buffers from syncer
 676         foreach(BufferId bufferId, removedBuffers) {
 677             _bufferSyncer->removeBuffer(bufferId);
 678         }
 679         emit networkRemoved(id);
 680         net->deleteLater();
 681     }
 682 }
 683
 684
 685 void CoreSession::renameBuffer(const NetworkId &networkId, const QString &newName, const QString &oldName)
 686 {
 687     BufferInfo bufferInfo = Core::bufferInfo(user(), networkId, BufferInfo::QueryBuffer, oldName, false);
 688     if (bufferInfo.isValid()) {
 689         _bufferSyncer->renameBuffer(bufferInfo.bufferId(), newName);
 690     }
 691 }
 692
 693
 694 void CoreSession::clientsConnected()
 695 {
 696     QHash<NetworkId, CoreNetwork *>::iterator netIter = _networks.begin();
 697     Identity *identity = 0;
 698     CoreNetwork *net = 0;
 699     IrcUser *me = 0;
 700     while (netIter != _networks.end()) {
 701         net = *netIter;
 702         ++netIter;
 703
 704         if (!net->isConnected())
 705             continue;
 706         identity = net->identityPtr();
 707         if (!identity)
 708             continue;
 709         me = net->me();
 710         if (!me)
 711             continue;
 712
 713         if (identity->detachAwayEnabled() && me->isAway()) {
 714             net->userInputHandler()->handleAway(BufferInfo(), QString());
 715         }
 716     }
 717 }
 718
 719
 720 void CoreSession::clientsDisconnected()
 721 {
 722     QHash<NetworkId, CoreNetwork *>::iterator netIter = _networks.begin();
 723     Identity *identity = 0;
 724     CoreNetwork *net = 0;
 725     IrcUser *me = 0;
 726     QString awayReason;
 727     while (netIter != _networks.end()) {
 728         net = *netIter;
 729         ++netIter;
 730
 731         if (!net->isConnected())
 732             continue;
 733
 734         identity = net->identityPtr();
 735         if (!identity)
 736             continue;
 737         me = net->me();
 738         if (!me)
 739             continue;
 740
 741         if (identity->detachAwayEnabled() && !me->isAway()) {
 742             if (!identity->detachAwayReason().isEmpty())
 743                 awayReason = identity->detachAwayReason();
 744             net->setAutoAwayActive(true);
 745             // Allow handleAway() to format the current date/time in the string.
 746             net->userInputHandler()->handleAway(BufferInfo(), awayReason);
 747         }
 748     }
 749 }
 750
 751
 752 void CoreSession::globalAway(const QString &msg, const bool skipFormatting)
 753 {
 754     QHash<NetworkId, CoreNetwork *>::iterator netIter = _networks.begin();
 755     CoreNetwork *net = 0;
 756     while (netIter != _networks.end()) {
 757         net = *netIter;
 758         ++netIter;
 759
 760         if (!net->isConnected())
 761             continue;
 762
 763         net->userInputHandler()->issueAway(msg, false /* no force away */, skipFormatting);
 764     }
 765 }
 766
 767 void CoreSession::changePassword(PeerPtr peer, const QString &userName, const QString &oldPassword, const QString &newPassword) {
 768     Q_UNUSED(peer);
 769
 770     bool success = false;
 771     UserId uid = Core::validateUser(userName, oldPassword);
 772     if (uid.isValid() && uid == user())
 773         success = Core::changeUserPassword(uid, newPassword);
 774
 775     signalProxy()->restrictTargetPeers(signalProxy()->sourcePeer(), [&]{
 776         emit passwordChanged(nullptr, success);
 777     });
 778 }
 779
 780 void CoreSession::kickClient(int peerId) {
 781     auto peer = signalProxy()->peerById(peerId);
 782     if (peer == nullptr) {
 783         qWarning() << "Invalid peer Id: " << peerId;
 784         return;
 785     }
 786     signalProxy()->restrictTargetPeers(peer, [&]{
 787         emit disconnectFromCore();
 788     });
 789 }