src/core/coresession.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2020 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  *                                                                         *
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  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 <utility>
  24
  25 #include "core.h"
  26 #include "corebacklogmanager.h"
  27 #include "corebuffersyncer.h"
  28 #include "corebufferviewmanager.h"
  29 #include "coredccconfig.h"
  30 #include "coreeventmanager.h"
  31 #include "coreidentity.h"
  32 #include "coreignorelistmanager.h"
  33 #include "coreinfo.h"
  34 #include "coreirclisthelper.h"
  35 #include "corenetwork.h"
  36 #include "corenetworkconfig.h"
  37 #include "coresessioneventprocessor.h"
  38 #include "coretransfermanager.h"
  39 #include "coreuserinputhandler.h"
  40 #include "coreusersettings.h"
  41 #include "ctcpparser.h"
  42 #include "eventstringifier.h"
  43 #include "internalpeer.h"
  44 #include "ircchannel.h"
  45 #include "ircparser.h"
  46 #include "ircuser.h"
  47 #include "messageevent.h"
  48 #include "remotepeer.h"
  49 #include "storage.h"
  50 #include "util.h"
  51
  52 class ProcessMessagesEvent : public QEvent
  53 {
  54 public:
  55     ProcessMessagesEvent()
  56         : QEvent(QEvent::User)
  57     {}
  58 };
  59
  60 CoreSession::CoreSession(UserId uid, bool restoreState, bool strictIdentEnabled, QObject* parent)
  61     : QObject(parent)
  62     , _user(uid)
  63     , _strictIdentEnabled(strictIdentEnabled)
  64     , _signalProxy(new SignalProxy(SignalProxy::Server, this))
  65     , _aliasManager(this)
  66     , _bufferSyncer(new CoreBufferSyncer(this))
  67     , _backlogManager(new CoreBacklogManager(this))
  68     , _bufferViewManager(new CoreBufferViewManager(_signalProxy, this))
  69     , _dccConfig(new CoreDccConfig(this))
  70     , _ircListHelper(new CoreIrcListHelper(this))
  71     , _networkConfig(new CoreNetworkConfig("GlobalNetworkConfig", this))
  72     , _coreInfo(new CoreInfo(this))
  73     , _transferManager(new CoreTransferManager(this))
  74     , _eventManager(new CoreEventManager(this))
  75     , _eventStringifier(new EventStringifier(this))
  76     , _sessionEventProcessor(new CoreSessionEventProcessor(this))
  77     , _ctcpParser(new CtcpParser(this))
  78     , _ircParser(new IrcParser(this))
  79     , _processMessages(false)
  80     , _ignoreListManager(this)
  81     , _highlightRuleManager(this)
  82     , _metricsServer(Core::instance()->metricsServer())
  83 {
  84     SignalProxy* p = signalProxy();
  85     p->setHeartBeatInterval(30);
  86     p->setMaxHeartBeatCount(60);  // 30 mins until we throw a dead socket out
  87
  88     connect(p, &SignalProxy::peerRemoved, this, &CoreSession::removeClient);
  89
  90     connect(p, &SignalProxy::connected, this, &CoreSession::clientsConnected);
  91     connect(p, &SignalProxy::disconnected, this, &CoreSession::clientsDisconnected);
  92
  93     p->attachSlot(SIGNAL(sendInput(BufferInfo,QString)), this, &CoreSession::msgFromClient);
  94     p->attachSignal(this, &CoreSession::displayMsg);
  95     p->attachSignal(this, &CoreSession::displayStatusMsg);
  96
  97     p->attachSignal(this, &CoreSession::identityCreated);
  98     p->attachSignal(this, &CoreSession::identityRemoved);
  99     p->attachSlot(SIGNAL(createIdentity(Identity,QVariantMap)), this, selectOverload<const Identity&, const QVariantMap&>(&CoreSession::createIdentity));
 100     p->attachSlot(SIGNAL(removeIdentity(IdentityId)), this, &CoreSession::removeIdentity);
 101
 102     p->attachSignal(this, &CoreSession::networkCreated);
 103     p->attachSignal(this, &CoreSession::networkRemoved);
 104     p->attachSlot(SIGNAL(createNetwork(NetworkInfo,QStringList)), this,&CoreSession::createNetwork);
 105     p->attachSlot(SIGNAL(removeNetwork(NetworkId)), this, &CoreSession::removeNetwork);
 106
 107     p->attachSlot(SIGNAL(changePassword(PeerPtr,QString,QString,QString)), this, &CoreSession::changePassword);
 108     p->attachSignal(this, &CoreSession::passwordChanged);
 109
 110     p->attachSlot(SIGNAL(kickClient(int)), this, &CoreSession::kickClient);
 111     p->attachSignal(this, &CoreSession::disconnectFromCore);
 112
 113     QVariantMap data;
 114     data["quasselVersion"] = Quassel::buildInfo().fancyVersionString;
 115     data["quasselBuildDate"] = Quassel::buildInfo().commitDate;  // "BuildDate" for compatibility
 116     data["startTime"] = Core::startTime();
 117     data["sessionConnectedClients"] = 0;
 118     _coreInfo->setCoreData(data);
 119
 120     loadSettings();
 121
 122     eventManager()->registerObject(ircParser(), EventManager::NormalPriority);
 123     eventManager()->registerObject(sessionEventProcessor(), EventManager::HighPriority);  // needs to process events *before* the stringifier!
 124     eventManager()->registerObject(ctcpParser(), EventManager::NormalPriority);
 125     eventManager()->registerObject(eventStringifier(), EventManager::NormalPriority);
 126     eventManager()->registerObject(this, EventManager::LowPriority);  // for sending MessageEvents to the client
 127     // some events need to be handled after msg generation
 128     eventManager()->registerObject(sessionEventProcessor(), EventManager::LowPriority, "lateProcess");
 129     eventManager()->registerObject(ctcpParser(), EventManager::LowPriority, "send");
 130
 131     // periodically save our session state
 132     connect(Core::syncTimer(), &QTimer::timeout, this, &CoreSession::saveSessionState);
 133
 134     p->synchronize(_bufferSyncer);
 135     p->synchronize(&aliasManager());
 136     p->synchronize(_backlogManager);
 137     p->synchronize(dccConfig());
 138     p->synchronize(ircListHelper());
 139     p->synchronize(networkConfig());
 140     p->synchronize(_coreInfo);
 141     p->synchronize(&_ignoreListManager);
 142     p->synchronize(&_highlightRuleManager);
 143     // Listen to network removed events
 144     connect(this, &CoreSession::networkRemoved, &_highlightRuleManager, &HighlightRuleManager::networkRemoved);
 145     p->synchronize(transferManager());
 146     // Restore session state
 147     if (restoreState)
 148         restoreSessionState();
 149
 150     emit initialized();
 151
 152     if (_metricsServer) {
 153         _metricsServer->addSession(user(), Core::instance()->strictSysIdent(_user));
 154     }
 155 }
 156
 157 void CoreSession::shutdown()
 158 {
 159     saveSessionState();
 160
 161     // Request disconnect from all connected networks in parallel, and wait until every network
 162     // has emitted the disconnected() signal before deleting the session itself
 163     for (CoreNetwork* net : _networks.values()) {
 164         if (net->socketState() != QAbstractSocket::UnconnectedState) {
 165             _networksPendingDisconnect.insert(net->networkId());
 166             connect(net, &CoreNetwork::disconnected, this, &CoreSession::onNetworkDisconnected);
 167             net->shutdown();
 168         }
 169     }
 170
 171     if (_networksPendingDisconnect.isEmpty()) {
 172         // Nothing to do, suicide so the core can shut down
 173         deleteLater();
 174     }
 175
 176     if (_metricsServer) {
 177         _metricsServer->removeSession(user());
 178     }
 179 }
 180
 181 void CoreSession::onNetworkDisconnected(NetworkId networkId)
 182 {
 183     _networksPendingDisconnect.remove(networkId);
 184     if (_networksPendingDisconnect.isEmpty()) {
 185         // We're done, suicide so the core can shut down
 186         deleteLater();
 187     }
 188 }
 189
 190 CoreNetwork* CoreSession::network(NetworkId id) const
 191 {
 192     if (_networks.contains(id))
 193         return _networks[id];
 194     return nullptr;
 195 }
 196
 197 CoreIdentity* CoreSession::identity(IdentityId id) const
 198 {
 199     if (_identities.contains(id))
 200         return _identities[id];
 201     return nullptr;
 202 }
 203
 204 void CoreSession::loadSettings()
 205 {
 206     CoreUserSettings s(user());
 207
 208     // migrate to db
 209     QList<IdentityId> ids = s.identityIds();
 210     std::vector<NetworkInfo> networkInfos = Core::networks(user());
 211     for (IdentityId id : ids) {
 212         CoreIdentity identity(s.identity(id));
 213         IdentityId newId = Core::createIdentity(user(), identity);
 214         auto networkIter = networkInfos.begin();
 215         while (networkIter != networkInfos.end()) {
 216             if (networkIter->identity == id) {
 217                 networkIter->identity = newId;
 218                 Core::updateNetwork(user(), *networkIter);
 219                 networkIter = networkInfos.erase(networkIter);
 220             }
 221             else {
 222                 ++networkIter;
 223             }
 224         }
 225         s.removeIdentity(id);
 226     }
 227     // end of migration
 228
 229     for (const CoreIdentity& identity : Core::identities(user())) {
 230         createIdentity(identity);
 231     }
 232
 233     for (const NetworkInfo& info : Core::networks(user())) {
 234         createNetwork(info);
 235     }
 236 }
 237
 238 void CoreSession::saveSessionState() const
 239 {
 240     _bufferSyncer->storeDirtyIds();
 241     _bufferViewManager->saveBufferViews();
 242     _networkConfig->save();
 243 }
 244
 245 void CoreSession::restoreSessionState()
 246 {
 247     for (NetworkId id : Core::connectedNetworks(user())) {
 248         auto net = network(id);
 249         Q_ASSERT(net);
 250         net->connectToIrc();
 251     }
 252 }
 253
 254 void CoreSession::addClient(RemotePeer* peer)
 255 {
 256     signalProxy()->setTargetPeer(peer);
 257
 258     peer->dispatch(sessionState());
 259     signalProxy()->addPeer(peer);
 260     _coreInfo->setConnectedClientData(signalProxy()->peerCount(), signalProxy()->peerData());
 261
 262     signalProxy()->setTargetPeer(nullptr);
 263
 264     if (_metricsServer) {
 265         _metricsServer->addClient(user());
 266     }
 267 }
 268
 269 void CoreSession::addClient(InternalPeer* peer)
 270 {
 271     signalProxy()->addPeer(peer);
 272     emit sessionStateReceived(sessionState());
 273 }
 274
 275 void CoreSession::removeClient(Peer* peer)
 276 {
 277     auto* p = qobject_cast<RemotePeer*>(peer);
 278     if (p)
 279         qInfo() << qPrintable(tr("Client")) << p->description() << qPrintable(tr("disconnected (UserId: %1).").arg(user().toInt()));
 280     _coreInfo->setConnectedClientData(signalProxy()->peerCount(), signalProxy()->peerData());
 281
 282     if (_metricsServer) {
 283         _metricsServer->removeClient(user());
 284     }
 285 }
 286
 287 QHash<QString, QString> CoreSession::persistentChannels(NetworkId id) const
 288 {
 289     return Core::persistentChannels(user(), id);
 290 }
 291
 292 QHash<QString, QByteArray> CoreSession::bufferCiphers(NetworkId id) const
 293 {
 294     return Core::bufferCiphers(user(), id);
 295 }
 296
 297 void CoreSession::setBufferCipher(NetworkId id, const QString& bufferName, const QByteArray& cipher) const
 298 {
 299     Core::setBufferCipher(user(), id, bufferName, cipher);
 300 }
 301
 302 // FIXME switch to BufferId
 303 void CoreSession::msgFromClient(BufferInfo bufinfo, QString msg)
 304 {
 305     CoreNetwork* net = network(bufinfo.networkId());
 306     if (net) {
 307         net->userInput(bufinfo, msg);
 308     }
 309     else {
 310         qWarning() << "Trying to send to unconnected network:" << msg;
 311     }
 312 }
 313
 314 // ALL messages coming pass through these functions before going to the GUI.
 315 // So this is the perfect place for storing the backlog and log stuff.
 316 void CoreSession::recvMessageFromServer(RawMessage msg)
 317 {
 318     // U+FDD0 and U+FDD1 are special characters for Qt's text engine, specifically they mark the boundaries of
 319     // text frames in a QTextDocument. This might lead to problems in widgets displaying QTextDocuments (such as
 320     // KDE's notifications), hence we remove those just to be safe.
 321     msg.text.remove(QChar(0xfdd0)).remove(QChar(0xfdd1));
 322
 323     // check for HardStrictness ignore
 324     CoreNetwork* currentNetwork = network(msg.networkId);
 325     QString networkName = currentNetwork ? currentNetwork->networkName() : QString("");
 326     if (_ignoreListManager.match(msg, networkName) == IgnoreListManager::HardStrictness)
 327         return;
 328
 329     if (currentNetwork && _highlightRuleManager.match(msg, currentNetwork->myNick(), currentNetwork->identityPtr()->nicks()))
 330         msg.flags |= Message::Flag::Highlight;
 331
 332     _messageQueue << std::move(msg);
 333     if (!_processMessages) {
 334         _processMessages = true;
 335         QCoreApplication::postEvent(this, new ProcessMessagesEvent());
 336     }
 337 }
 338
 339 void CoreSession::recvStatusMsgFromServer(QString msg)
 340 {
 341     auto* net = qobject_cast<CoreNetwork*>(sender());
 342     Q_ASSERT(net);
 343     emit displayStatusMsg(net->networkName(), std::move(msg));
 344 }
 345
 346 void CoreSession::processMessageEvent(MessageEvent* event)
 347 {
 348     recvMessageFromServer(RawMessage{
 349         event->timestamp(),
 350         event->networkId(),
 351         event->msgType(),
 352         event->bufferType(),
 353         event->target().isNull() ? "" : event->target(),
 354         event->text().isNull() ? "" : event->text(),
 355         event->sender().isNull() ? "" : event->sender(),
 356         event->msgFlags()
 357     });
 358 }
 359
 360 std::vector<BufferInfo> CoreSession::buffers() const
 361 {
 362     return Core::requestBuffers(user());
 363 }
 364
 365 void CoreSession::customEvent(QEvent* event)
 366 {
 367     if (event->type() != QEvent::User)
 368         return;
 369
 370     processMessages();
 371     event->accept();
 372 }
 373
 374 void CoreSession::processMessages()
 375 {
 376     if (_messageQueue.count() == 1) {
 377         const RawMessage& rawMsg = _messageQueue.first();
 378         bool createBuffer = !(rawMsg.flags & Message::Redirected);
 379         BufferInfo bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, rawMsg.bufferType, rawMsg.target, createBuffer);
 380         if (!bufferInfo.isValid()) {
 381             Q_ASSERT(!createBuffer);
 382             bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, BufferInfo::StatusBuffer, "");
 383         }
 384         Message msg(rawMsg.timestamp,
 385                     bufferInfo,
 386                     rawMsg.type,
 387                     rawMsg.text,
 388                     rawMsg.sender,
 389                     senderPrefixes(rawMsg.sender, bufferInfo),
 390                     realName(rawMsg.sender, rawMsg.networkId),
 391                     avatarUrl(rawMsg.sender, rawMsg.networkId),
 392                     rawMsg.flags);
 393         if (Core::storeMessage(msg))
 394             emit displayMsg(msg);
 395     }
 396     else {
 397         QHash<NetworkId, QHash<QString, BufferInfo>> bufferInfoCache;
 398         MessageList messages;
 399         QList<RawMessage> redirectedMessages;  // list of Messages which don't enforce a buffer creation
 400         BufferInfo bufferInfo;
 401         for (int i = 0; i < _messageQueue.count(); i++) {
 402             const RawMessage& rawMsg = _messageQueue.at(i);
 403             if (bufferInfoCache.contains(rawMsg.networkId) && bufferInfoCache[rawMsg.networkId].contains(rawMsg.target)) {
 404                 bufferInfo = bufferInfoCache[rawMsg.networkId][rawMsg.target];
 405             }
 406             else {
 407                 bool createBuffer = !(rawMsg.flags & Message::Redirected);
 408                 bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, rawMsg.bufferType, rawMsg.target, createBuffer);
 409                 if (!bufferInfo.isValid()) {
 410                     Q_ASSERT(!createBuffer);
 411                     redirectedMessages << rawMsg;
 412                     continue;
 413                 }
 414                 bufferInfoCache[rawMsg.networkId][rawMsg.target] = bufferInfo;
 415             }
 416             Message msg(rawMsg.timestamp,
 417                         bufferInfo,
 418                         rawMsg.type,
 419                         rawMsg.text,
 420                         rawMsg.sender,
 421                         senderPrefixes(rawMsg.sender, bufferInfo),
 422                         realName(rawMsg.sender, rawMsg.networkId),
 423                         avatarUrl(rawMsg.sender, rawMsg.networkId),
 424                         rawMsg.flags);
 425             messages << msg;
 426         }
 427
 428         // recheck if there exists a buffer to store a redirected message in
 429         for (int i = 0; i < redirectedMessages.count(); i++) {
 430             const RawMessage& rawMsg = redirectedMessages.at(i);
 431             if (bufferInfoCache.contains(rawMsg.networkId) && bufferInfoCache[rawMsg.networkId].contains(rawMsg.target)) {
 432                 bufferInfo = bufferInfoCache[rawMsg.networkId][rawMsg.target];
 433             }
 434             else {
 435                 // no luck -> we store them in the StatusBuffer
 436                 bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, BufferInfo::StatusBuffer, "");
 437                 // add the StatusBuffer to the Cache in case there are more Messages for the original target
 438                 bufferInfoCache[rawMsg.networkId][rawMsg.target] = bufferInfo;
 439             }
 440             Message msg(rawMsg.timestamp,
 441                         bufferInfo,
 442                         rawMsg.type,
 443                         rawMsg.text,
 444                         rawMsg.sender,
 445                         senderPrefixes(rawMsg.sender, bufferInfo),
 446                         realName(rawMsg.sender, rawMsg.networkId),
 447                         avatarUrl(rawMsg.sender, rawMsg.networkId),
 448                         rawMsg.flags);
 449             messages << msg;
 450         }
 451
 452         if (Core::storeMessages(messages)) {
 453             // FIXME: extend protocol to a displayMessages(MessageList)
 454             for (int i = 0; i < messages.count(); i++) {
 455                 emit displayMsg(messages[i]);
 456             }
 457         }
 458     }
 459     _processMessages = false;
 460     _messageQueue.clear();
 461 }
 462
 463 QString CoreSession::senderPrefixes(const QString& sender, const BufferInfo& bufferInfo) const
 464 {
 465     CoreNetwork* currentNetwork = network(bufferInfo.networkId());
 466     if (!currentNetwork) {
 467         return {};
 468     }
 469
 470     if (bufferInfo.type() != BufferInfo::ChannelBuffer) {
 471         return {};
 472     }
 473
 474     IrcChannel* currentChannel = currentNetwork->ircChannel(bufferInfo.bufferName());
 475     if (!currentChannel) {
 476         return {};
 477     }
 478
 479     const QString modes = currentChannel->userModes(nickFromMask(sender).toLower());
 480     return currentNetwork->modesToPrefixes(modes);
 481 }
 482
 483 QString CoreSession::realName(const QString& sender, NetworkId networkId) const
 484 {
 485     CoreNetwork* currentNetwork = network(networkId);
 486     if (!currentNetwork) {
 487         return {};
 488     }
 489
 490     IrcUser* currentUser = currentNetwork->ircUser(nickFromMask(sender));
 491     if (!currentUser) {
 492         return {};
 493     }
 494
 495     return currentUser->realName();
 496 }
 497
 498 QString CoreSession::avatarUrl(const QString& sender, NetworkId networkId) const
 499 {
 500     Q_UNUSED(sender);
 501     Q_UNUSED(networkId);
 502     // Currently we do not have a way to retrieve this value yet.
 503     //
 504     // This likely will require implementing IRCv3's METADATA spec.
 505     // See https://ircv3.net/irc/
 506     // And https://blog.irccloud.com/avatars/
 507     return "";
 508 }
 509
 510 Protocol::SessionState CoreSession::sessionState() const
 511 {
 512     QVariantList bufferInfos;
 513     QVariantList networkIds;
 514     QVariantList identities;
 515
 516     for (const BufferInfo& id : buffers()) {
 517         bufferInfos << QVariant::fromValue(id);
 518     }
 519     for (const NetworkId& id : _networks.keys()) {
 520         networkIds << QVariant::fromValue(id);
 521     }
 522     for (const Identity* i : _identities.values()) {
 523         identities << QVariant::fromValue(*i);
 524     }
 525
 526     return Protocol::SessionState(identities, bufferInfos, networkIds);
 527 }
 528
 529 /*** Identity Handling ***/
 530 void CoreSession::createIdentity(const Identity& identity, const QVariantMap& additional)
 531 {
 532 #ifndef HAVE_SSL
 533     Q_UNUSED(additional)
 534 #endif
 535
 536     CoreIdentity coreIdentity(identity);
 537 #ifdef HAVE_SSL
 538     if (additional.contains("KeyPem"))
 539         coreIdentity.setSslKey(additional["KeyPem"].toByteArray());
 540     if (additional.contains("CertPem"))
 541         coreIdentity.setSslCert(additional["CertPem"].toByteArray());
 542 #endif
 543     qDebug() << Q_FUNC_INFO;
 544     IdentityId id = Core::createIdentity(user(), coreIdentity);
 545     if (!id.isValid())
 546         return;
 547     else
 548         createIdentity(coreIdentity);
 549 }
 550
 551 const QString CoreSession::strictCompliantIdent(const CoreIdentity* identity)
 552 {
 553     if (_strictIdentEnabled) {
 554         // Strict mode enabled: only allow the user's Quassel username as an ident
 555         return Core::instance()->strictSysIdent(_user);
 556     }
 557     else {
 558         // Strict mode disabled: allow any identity specified
 559         return identity->ident();
 560     }
 561 }
 562
 563 void CoreSession::createIdentity(const CoreIdentity& identity)
 564 {
 565     auto* coreIdentity = new CoreIdentity(identity, this);
 566     _identities[identity.id()] = coreIdentity;
 567     // CoreIdentity has its own synchronize method since its "private" sslManager needs to be synced as well
 568     coreIdentity->synchronize(signalProxy());
 569     connect(coreIdentity, &SyncableObject::updated, this, &CoreSession::updateIdentityBySender);
 570     emit identityCreated(*coreIdentity);
 571 }
 572
 573 void CoreSession::updateIdentityBySender()
 574 {
 575     auto* identity = qobject_cast<CoreIdentity*>(sender());
 576     if (!identity)
 577         return;
 578     Core::updateIdentity(user(), *identity);
 579 }
 580
 581 void CoreSession::removeIdentity(IdentityId id)
 582 {
 583     CoreIdentity* identity = _identities.take(id);
 584     if (identity) {
 585         emit identityRemoved(id);
 586         Core::removeIdentity(user(), id);
 587         identity->deleteLater();
 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(
 603             tr("CoreSession::createNetwork(): Got invalid networkId from Core when trying to create network %1!").arg(info.networkName));
 604         return;
 605     }
 606
 607     id = info.networkId.toInt();
 608     if (!_networks.contains(id)) {
 609         // create persistent chans
 610         QRegExp rx(R"(\s*(\S+)(?:\s*(\S+))?\s*)");
 611         for (const QString& channel : persistentChans) {
 612             if (!rx.exactMatch(channel)) {
 613                 qWarning() << QString("Invalid persistent channel declaration: %1").arg(channel);
 614                 continue;
 615             }
 616             Core::bufferInfo(user(), info.networkId, BufferInfo::ChannelBuffer, rx.cap(1), true);
 617             Core::setChannelPersistent(user(), info.networkId, rx.cap(1), true);
 618             if (!rx.cap(2).isEmpty())
 619                 Core::setPersistentChannelKey(user(), info.networkId, rx.cap(1), rx.cap(2));
 620         }
 621
 622         CoreNetwork* net = new CoreNetwork(id, this);
 623         connect(net, &CoreNetwork::displayMsg, this, &CoreSession::recvMessageFromServer);
 624         connect(net, &CoreNetwork::displayStatusMsg, this, &CoreSession::recvStatusMsgFromServer);
 625         connect(net, &CoreNetwork::disconnected, this, &CoreSession::networkDisconnected);
 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 void CoreSession::removeNetwork(NetworkId id)
 640 {
 641     // Make sure the network is disconnected!
 642     CoreNetwork* net = network(id);
 643     if (!net)
 644         return;
 645
 646     if (net->connectionState() != Network::Disconnected) {
 647         // make sure we no longer receive data from the tcp buffer
 648         disconnect(net, &CoreNetwork::displayMsg, this, nullptr);
 649         disconnect(net, &CoreNetwork::displayStatusMsg, this, nullptr);
 650         connect(net, &CoreNetwork::disconnected, this, &CoreSession::destroyNetwork);
 651         net->disconnectFromIrc();
 652     }
 653     else {
 654         destroyNetwork(id);
 655     }
 656 }
 657
 658 void CoreSession::destroyNetwork(NetworkId id)
 659 {
 660     Network* net = _networks.take(id);
 661     if (net && Core::removeNetwork(user(), id)) {
 662         // make sure that all unprocessed RawMessages from this network are removed
 663         QList<RawMessage>::iterator messageIter = _messageQueue.begin();
 664         while (messageIter != _messageQueue.end()) {
 665             if (messageIter->networkId == id) {
 666                 messageIter = _messageQueue.erase(messageIter);
 667             }
 668             else {
 669                 ++messageIter;
 670             }
 671         }
 672         // remove buffers from syncer
 673         for (BufferId bufferId : Core::requestBufferIdsForNetwork(user(), id)) {
 674             _bufferSyncer->removeBuffer(bufferId);
 675         }
 676         emit networkRemoved(id);
 677         net->deleteLater();
 678     }
 679 }
 680
 681 void CoreSession::renameBuffer(const NetworkId& networkId, const QString& newName, const QString& oldName)
 682 {
 683     BufferInfo bufferInfo = Core::bufferInfo(user(), networkId, BufferInfo::QueryBuffer, oldName, false);
 684     if (bufferInfo.isValid()) {
 685         _bufferSyncer->renameBuffer(bufferInfo.bufferId(), newName);
 686     }
 687 }
 688
 689 void CoreSession::clientsConnected()
 690 {
 691     QHash<NetworkId, CoreNetwork*>::iterator netIter = _networks.begin();
 692     Identity* identity = nullptr;
 693     CoreNetwork* net = nullptr;
 694     IrcUser* me = nullptr;
 695     while (netIter != _networks.end()) {
 696         net = *netIter;
 697         ++netIter;
 698
 699         if (!net->isConnected())
 700             continue;
 701         identity = net->identityPtr();
 702         if (!identity)
 703             continue;
 704         me = net->me();
 705         if (!me)
 706             continue;
 707
 708         if (identity->detachAwayEnabled() && me->isAway()) {
 709             net->userInputHandler()->handleAway(BufferInfo(), QString());
 710         }
 711     }
 712 }
 713
 714 void CoreSession::clientsDisconnected()
 715 {
 716     QHash<NetworkId, CoreNetwork*>::iterator netIter = _networks.begin();
 717     Identity* identity = nullptr;
 718     CoreNetwork* net = nullptr;
 719     IrcUser* me = nullptr;
 720     QString awayReason;
 721     while (netIter != _networks.end()) {
 722         net = *netIter;
 723         ++netIter;
 724
 725         if (!net->isConnected())
 726             continue;
 727
 728         identity = net->identityPtr();
 729         if (!identity)
 730             continue;
 731         me = net->me();
 732         if (!me)
 733             continue;
 734
 735         if (identity->detachAwayEnabled() && !me->isAway()) {
 736             if (!identity->detachAwayReason().isEmpty())
 737                 awayReason = identity->detachAwayReason();
 738             net->setAutoAwayActive(true);
 739             // Allow handleAway() to format the current date/time in the string.
 740             net->userInputHandler()->handleAway(BufferInfo(), awayReason);
 741         }
 742     }
 743 }
 744
 745 void CoreSession::globalAway(const QString& msg, const bool skipFormatting)
 746 {
 747     QHash<NetworkId, CoreNetwork*>::iterator netIter = _networks.begin();
 748     CoreNetwork* net = nullptr;
 749     while (netIter != _networks.end()) {
 750         net = *netIter;
 751         ++netIter;
 752
 753         if (!net->isConnected())
 754             continue;
 755
 756         net->userInputHandler()->issueAway(msg, false /* no force away */, skipFormatting);
 757     }
 758 }
 759
 760 void CoreSession::changePassword(PeerPtr peer, const QString& userName, const QString& oldPassword, const QString& newPassword)
 761 {
 762     Q_UNUSED(peer);
 763
 764     bool success = false;
 765     UserId uid = Core::validateUser(userName, oldPassword);
 766     if (uid.isValid() && uid == user())
 767         success = Core::changeUserPassword(uid, newPassword);
 768
 769     signalProxy()->restrictTargetPeers(signalProxy()->sourcePeer(), [&] { emit passwordChanged(nullptr, success); });
 770 }
 771
 772 void CoreSession::kickClient(int peerId)
 773 {
 774     auto peer = signalProxy()->peerById(peerId);
 775     if (peer == nullptr) {
 776         qWarning() << "Invalid peer Id: " << peerId;
 777         return;
 778     }
 779     signalProxy()->restrictTargetPeers(peer, [&] { emit disconnectFromCore(); });
 780 }