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 "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     , scriptEngine(new QScriptEngine(this))
  80     , _processMessages(false)
  81     , _ignoreListManager(this)
  82     , _highlightRuleManager(this)
  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::instance()->startTime();
 117     data["sessionConnectedClients"] = 0;
 118     _coreInfo->setCoreData(data);
 119
 120     loadSettings();
 121     initScriptEngine();
 122
 123     eventManager()->registerObject(ircParser(), EventManager::NormalPriority);
 124     eventManager()->registerObject(sessionEventProcessor(), EventManager::HighPriority);  // needs to process events *before* the stringifier!
 125     eventManager()->registerObject(ctcpParser(), EventManager::NormalPriority);
 126     eventManager()->registerObject(eventStringifier(), EventManager::NormalPriority);
 127     eventManager()->registerObject(this, EventManager::LowPriority);  // for sending MessageEvents to the client
 128     // some events need to be handled after msg generation
 129     eventManager()->registerObject(sessionEventProcessor(), EventManager::LowPriority, "lateProcess");
 130     eventManager()->registerObject(ctcpParser(), EventManager::LowPriority, "send");
 131
 132     // periodically save our session state
 133     connect(Core::instance()->syncTimer(), &QTimer::timeout, this, &CoreSession::saveSessionState);
 134
 135     p->synchronize(_bufferSyncer);
 136     p->synchronize(&aliasManager());
 137     p->synchronize(_backlogManager);
 138     p->synchronize(dccConfig());
 139     p->synchronize(ircListHelper());
 140     p->synchronize(networkConfig());
 141     p->synchronize(_coreInfo);
 142     p->synchronize(&_ignoreListManager);
 143     p->synchronize(&_highlightRuleManager);
 144     // Listen to network removed events
 145     connect(this, &CoreSession::networkRemoved, &_highlightRuleManager, &HighlightRuleManager::networkRemoved);
 146     p->synchronize(transferManager());
 147     // Restore session state
 148     if (restoreState)
 149         restoreSessionState();
 150
 151     emit initialized();
 152 }
 153
 154 void CoreSession::shutdown()
 155 {
 156     saveSessionState();
 157
 158     // Request disconnect from all connected networks in parallel, and wait until every network
 159     // has emitted the disconnected() signal before deleting the session itself
 160     for (CoreNetwork* net : _networks.values()) {
 161         if (net->socketState() != QAbstractSocket::UnconnectedState) {
 162             _networksPendingDisconnect.insert(net->networkId());
 163             connect(net, &CoreNetwork::disconnected, this, &CoreSession::onNetworkDisconnected);
 164             net->shutdown();
 165         }
 166     }
 167
 168     if (_networksPendingDisconnect.isEmpty()) {
 169         // Nothing to do, suicide so the core can shut down
 170         deleteLater();
 171     }
 172 }
 173
 174 void CoreSession::onNetworkDisconnected(NetworkId networkId)
 175 {
 176     _networksPendingDisconnect.remove(networkId);
 177     if (_networksPendingDisconnect.isEmpty()) {
 178         // We're done, suicide so the core can shut down
 179         deleteLater();
 180     }
 181 }
 182
 183 CoreNetwork* CoreSession::network(NetworkId id) const
 184 {
 185     if (_networks.contains(id))
 186         return _networks[id];
 187     return nullptr;
 188 }
 189
 190 CoreIdentity* CoreSession::identity(IdentityId id) const
 191 {
 192     if (_identities.contains(id))
 193         return _identities[id];
 194     return nullptr;
 195 }
 196
 197 void CoreSession::loadSettings()
 198 {
 199     CoreUserSettings s(user());
 200
 201     // migrate to db
 202     QList<IdentityId> ids = s.identityIds();
 203     QList<NetworkInfo> networkInfos = Core::networks(user());
 204     foreach (IdentityId id, ids) {
 205         CoreIdentity identity(s.identity(id));
 206         IdentityId newId = Core::createIdentity(user(), identity);
 207         QList<NetworkInfo>::iterator networkIter = networkInfos.begin();
 208         while (networkIter != networkInfos.end()) {
 209             if (networkIter->identity == id) {
 210                 networkIter->identity = newId;
 211                 Core::updateNetwork(user(), *networkIter);
 212                 networkIter = networkInfos.erase(networkIter);
 213             }
 214             else {
 215                 ++networkIter;
 216             }
 217         }
 218         s.removeIdentity(id);
 219     }
 220     // end of migration
 221
 222     foreach (CoreIdentity identity, Core::identities(user())) {
 223         createIdentity(identity);
 224     }
 225
 226     foreach (NetworkInfo info, Core::networks(user())) {
 227         createNetwork(info);
 228     }
 229 }
 230
 231 void CoreSession::saveSessionState() const
 232 {
 233     _bufferSyncer->storeDirtyIds();
 234     _bufferViewManager->saveBufferViews();
 235     _networkConfig->save();
 236 }
 237
 238 void CoreSession::restoreSessionState()
 239 {
 240     QList<NetworkId> nets = Core::connectedNetworks(user());
 241     CoreNetwork* net = nullptr;
 242     foreach (NetworkId id, nets) {
 243         net = network(id);
 244         Q_ASSERT(net);
 245         net->connectToIrc();
 246     }
 247 }
 248
 249 void CoreSession::addClient(RemotePeer* peer)
 250 {
 251     signalProxy()->setTargetPeer(peer);
 252
 253     peer->dispatch(sessionState());
 254     signalProxy()->addPeer(peer);
 255     _coreInfo->setConnectedClientData(signalProxy()->peerCount(), signalProxy()->peerData());
 256
 257     signalProxy()->setTargetPeer(nullptr);
 258 }
 259
 260 void CoreSession::addClient(InternalPeer* peer)
 261 {
 262     signalProxy()->addPeer(peer);
 263     emit sessionStateReceived(sessionState());
 264 }
 265
 266 void CoreSession::removeClient(Peer* peer)
 267 {
 268     auto* p = qobject_cast<RemotePeer*>(peer);
 269     if (p)
 270         qInfo() << qPrintable(tr("Client")) << p->description() << qPrintable(tr("disconnected (UserId: %1).").arg(user().toInt()));
 271     _coreInfo->setConnectedClientData(signalProxy()->peerCount(), signalProxy()->peerData());
 272 }
 273
 274 QHash<QString, QString> CoreSession::persistentChannels(NetworkId id) const
 275 {
 276     return Core::persistentChannels(user(), id);
 277 }
 278
 279 QHash<QString, QByteArray> CoreSession::bufferCiphers(NetworkId id) const
 280 {
 281     return Core::bufferCiphers(user(), id);
 282 }
 283
 284 void CoreSession::setBufferCipher(NetworkId id, const QString& bufferName, const QByteArray& cipher) const
 285 {
 286     Core::setBufferCipher(user(), id, bufferName, cipher);
 287 }
 288
 289 // FIXME switch to BufferId
 290 void CoreSession::msgFromClient(BufferInfo bufinfo, QString msg)
 291 {
 292     CoreNetwork* net = network(bufinfo.networkId());
 293     if (net) {
 294         net->userInput(bufinfo, msg);
 295     }
 296     else {
 297         qWarning() << "Trying to send to unconnected network:" << msg;
 298     }
 299 }
 300
 301 // ALL messages coming pass through these functions before going to the GUI.
 302 // So this is the perfect place for storing the backlog and log stuff.
 303 void CoreSession::recvMessageFromServer(NetworkId networkId,
 304                                         Message::Type type,
 305                                         BufferInfo::Type bufferType,
 306                                         const QString& target,
 307                                         const QString& text_,
 308                                         const QString& sender,
 309                                         Message::Flags flags)
 310 {
 311     // U+FDD0 and U+FDD1 are special characters for Qt's text engine, specifically they mark the boundaries of
 312     // text frames in a QTextDocument. This might lead to problems in widgets displaying QTextDocuments (such as
 313     // KDE's notifications), hence we remove those just to be safe.
 314     QString text = text_;
 315     text.remove(QChar(0xfdd0)).remove(QChar(0xfdd1));
 316     RawMessage rawMsg(networkId, type, bufferType, target, text, sender, flags);
 317
 318     // check for HardStrictness ignore
 319     CoreNetwork* currentNetwork = network(networkId);
 320     QString networkName = currentNetwork ? currentNetwork->networkName() : QString("");
 321     if (_ignoreListManager.match(rawMsg, networkName) == IgnoreListManager::HardStrictness)
 322         return;
 323
 324     if (currentNetwork && _highlightRuleManager.match(rawMsg, currentNetwork->myNick(), currentNetwork->identityPtr()->nicks()))
 325         rawMsg.flags |= Message::Flag::Highlight;
 326
 327     _messageQueue << rawMsg;
 328     if (!_processMessages) {
 329         _processMessages = true;
 330         QCoreApplication::postEvent(this, new ProcessMessagesEvent());
 331     }
 332 }
 333
 334 void CoreSession::recvStatusMsgFromServer(QString msg)
 335 {
 336     auto* net = qobject_cast<CoreNetwork*>(sender());
 337     Q_ASSERT(net);
 338     emit displayStatusMsg(net->networkName(), msg);
 339 }
 340
 341 void CoreSession::processMessageEvent(MessageEvent* event)
 342 {
 343     recvMessageFromServer(event->networkId(),
 344                           event->msgType(),
 345                           event->bufferType(),
 346                           event->target().isNull() ? "" : event->target(),
 347                           event->text().isNull() ? "" : event->text(),
 348                           event->sender().isNull() ? "" : event->sender(),
 349                           event->msgFlags());
 350 }
 351
 352 QList<BufferInfo> CoreSession::buffers() const
 353 {
 354     return Core::requestBuffers(user());
 355 }
 356
 357 void CoreSession::customEvent(QEvent* event)
 358 {
 359     if (event->type() != QEvent::User)
 360         return;
 361
 362     processMessages();
 363     event->accept();
 364 }
 365
 366 void CoreSession::processMessages()
 367 {
 368     if (_messageQueue.count() == 1) {
 369         const RawMessage& rawMsg = _messageQueue.first();
 370         bool createBuffer = !(rawMsg.flags & Message::Redirected);
 371         BufferInfo bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, rawMsg.bufferType, rawMsg.target, createBuffer);
 372         if (!bufferInfo.isValid()) {
 373             Q_ASSERT(!createBuffer);
 374             bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, BufferInfo::StatusBuffer, "");
 375         }
 376         Message msg(bufferInfo,
 377                     rawMsg.type,
 378                     rawMsg.text,
 379                     rawMsg.sender,
 380                     senderPrefixes(rawMsg.sender, bufferInfo),
 381                     realName(rawMsg.sender, rawMsg.networkId),
 382                     avatarUrl(rawMsg.sender, rawMsg.networkId),
 383                     rawMsg.flags);
 384         if (Core::storeMessage(msg))
 385             emit displayMsg(msg);
 386     }
 387     else {
 388         QHash<NetworkId, QHash<QString, BufferInfo>> bufferInfoCache;
 389         MessageList messages;
 390         QList<RawMessage> redirectedMessages;  // list of Messages which don't enforce a buffer creation
 391         BufferInfo bufferInfo;
 392         for (int i = 0; i < _messageQueue.count(); i++) {
 393             const RawMessage& rawMsg = _messageQueue.at(i);
 394             if (bufferInfoCache.contains(rawMsg.networkId) && bufferInfoCache[rawMsg.networkId].contains(rawMsg.target)) {
 395                 bufferInfo = bufferInfoCache[rawMsg.networkId][rawMsg.target];
 396             }
 397             else {
 398                 bool createBuffer = !(rawMsg.flags & Message::Redirected);
 399                 bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, rawMsg.bufferType, rawMsg.target, createBuffer);
 400                 if (!bufferInfo.isValid()) {
 401                     Q_ASSERT(!createBuffer);
 402                     redirectedMessages << rawMsg;
 403                     continue;
 404                 }
 405                 bufferInfoCache[rawMsg.networkId][rawMsg.target] = bufferInfo;
 406             }
 407             Message msg(bufferInfo,
 408                         rawMsg.type,
 409                         rawMsg.text,
 410                         rawMsg.sender,
 411                         senderPrefixes(rawMsg.sender, bufferInfo),
 412                         realName(rawMsg.sender, rawMsg.networkId),
 413                         avatarUrl(rawMsg.sender, rawMsg.networkId),
 414                         rawMsg.flags);
 415             messages << msg;
 416         }
 417
 418         // recheck if there exists a buffer to store a redirected message in
 419         for (int i = 0; i < redirectedMessages.count(); i++) {
 420             const RawMessage& rawMsg = redirectedMessages.at(i);
 421             if (bufferInfoCache.contains(rawMsg.networkId) && bufferInfoCache[rawMsg.networkId].contains(rawMsg.target)) {
 422                 bufferInfo = bufferInfoCache[rawMsg.networkId][rawMsg.target];
 423             }
 424             else {
 425                 // no luck -> we store them in the StatusBuffer
 426                 bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, BufferInfo::StatusBuffer, "");
 427                 // add the StatusBuffer to the Cache in case there are more Messages for the original target
 428                 bufferInfoCache[rawMsg.networkId][rawMsg.target] = bufferInfo;
 429             }
 430             Message msg(bufferInfo,
 431                         rawMsg.type,
 432                         rawMsg.text,
 433                         rawMsg.sender,
 434                         senderPrefixes(rawMsg.sender, bufferInfo),
 435                         realName(rawMsg.sender, rawMsg.networkId),
 436                         avatarUrl(rawMsg.sender, rawMsg.networkId),
 437                         rawMsg.flags);
 438             messages << msg;
 439         }
 440
 441         if (Core::storeMessages(messages)) {
 442             // FIXME: extend protocol to a displayMessages(MessageList)
 443             for (int i = 0; i < messages.count(); i++) {
 444                 emit displayMsg(messages[i]);
 445             }
 446         }
 447     }
 448     _processMessages = false;
 449     _messageQueue.clear();
 450 }
 451
 452 QString CoreSession::senderPrefixes(const QString& sender, const BufferInfo& bufferInfo) const
 453 {
 454     CoreNetwork* currentNetwork = network(bufferInfo.networkId());
 455     if (!currentNetwork) {
 456         return {};
 457     }
 458
 459     if (bufferInfo.type() != BufferInfo::ChannelBuffer) {
 460         return {};
 461     }
 462
 463     IrcChannel* currentChannel = currentNetwork->ircChannel(bufferInfo.bufferName());
 464     if (!currentChannel) {
 465         return {};
 466     }
 467
 468     const QString modes = currentChannel->userModes(nickFromMask(sender).toLower());
 469     return currentNetwork->modesToPrefixes(modes);
 470 }
 471
 472 QString CoreSession::realName(const QString& sender, NetworkId networkId) const
 473 {
 474     CoreNetwork* currentNetwork = network(networkId);
 475     if (!currentNetwork) {
 476         return {};
 477     }
 478
 479     IrcUser* currentUser = currentNetwork->ircUser(nickFromMask(sender));
 480     if (!currentUser) {
 481         return {};
 482     }
 483
 484     return currentUser->realName();
 485 }
 486
 487 QString CoreSession::avatarUrl(const QString& sender, NetworkId networkId) const
 488 {
 489     Q_UNUSED(sender);
 490     Q_UNUSED(networkId);
 491     // Currently we do not have a way to retrieve this value yet.
 492     //
 493     // This likely will require implementing IRCv3's METADATA spec.
 494     // See https://ircv3.net/irc/
 495     // And https://blog.irccloud.com/avatars/
 496     return "";
 497 }
 498
 499 Protocol::SessionState CoreSession::sessionState() const
 500 {
 501     QVariantList bufferInfos;
 502     QVariantList networkIds;
 503     QVariantList identities;
 504
 505     foreach (const BufferInfo& id, buffers())
 506         bufferInfos << QVariant::fromValue(id);
 507     foreach (const NetworkId& id, _networks.keys())
 508         networkIds << QVariant::fromValue(id);
 509     foreach (const Identity* i, _identities.values())
 510         identities << QVariant::fromValue(*i);
 511
 512     return Protocol::SessionState(identities, bufferInfos, networkIds);
 513 }
 514
 515 void CoreSession::initScriptEngine()
 516 {
 517     signalProxy()->attachSlot(SIGNAL(scriptRequest(QString)), this, &CoreSession::scriptRequest);
 518     signalProxy()->attachSignal(this, &CoreSession::scriptResult);
 519
 520     // FIXME
 521     // QScriptValue storage_ = scriptEngine->newQObject(storage);
 522     // scriptEngine->globalObject().setProperty("storage", storage_);
 523 }
 524
 525 void CoreSession::scriptRequest(QString script)
 526 {
 527     emit scriptResult(scriptEngine->evaluate(script).toString());
 528 }
 529
 530 /*** Identity Handling ***/
 531 void CoreSession::createIdentity(const Identity& identity, const QVariantMap& additional)
 532 {
 533 #ifndef HAVE_SSL
 534     Q_UNUSED(additional)
 535 #endif
 536
 537     CoreIdentity coreIdentity(identity);
 538 #ifdef HAVE_SSL
 539     if (additional.contains("KeyPem"))
 540         coreIdentity.setSslKey(additional["KeyPem"].toByteArray());
 541     if (additional.contains("CertPem"))
 542         coreIdentity.setSslCert(additional["CertPem"].toByteArray());
 543 #endif
 544     qDebug() << Q_FUNC_INFO;
 545     IdentityId id = Core::createIdentity(user(), coreIdentity);
 546     if (!id.isValid())
 547         return;
 548     else
 549         createIdentity(coreIdentity);
 550 }
 551
 552 const QString CoreSession::strictCompliantIdent(const CoreIdentity* identity)
 553 {
 554     if (_strictIdentEnabled) {
 555         // Strict mode enabled: only allow the user's Quassel username as an ident
 556         return Core::instance()->strictSysIdent(_user);
 557     }
 558     else {
 559         // Strict mode disabled: allow any identity specified
 560         return identity->ident();
 561     }
 562 }
 563
 564 void CoreSession::createIdentity(const CoreIdentity& identity)
 565 {
 566     auto* coreIdentity = new CoreIdentity(identity, this);
 567     _identities[identity.id()] = coreIdentity;
 568     // CoreIdentity has its own synchronize method since its "private" sslManager needs to be synced as well
 569     coreIdentity->synchronize(signalProxy());
 570     connect(coreIdentity, &SyncableObject::updated, this, &CoreSession::updateIdentityBySender);
 571     emit identityCreated(*coreIdentity);
 572 }
 573
 574 void CoreSession::updateIdentityBySender()
 575 {
 576     auto* identity = qobject_cast<CoreIdentity*>(sender());
 577     if (!identity)
 578         return;
 579     Core::updateIdentity(user(), *identity);
 580 }
 581
 582 void CoreSession::removeIdentity(IdentityId id)
 583 {
 584     CoreIdentity* identity = _identities.take(id);
 585     if (identity) {
 586         emit identityRemoved(id);
 587         Core::removeIdentity(user(), id);
 588         identity->deleteLater();
 589     }
 590 }
 591
 592 /*** Network Handling ***/
 593
 594 void CoreSession::createNetwork(const NetworkInfo& info_, const QStringList& persistentChans)
 595 {
 596     NetworkInfo info = info_;
 597     int id;
 598
 599     if (!info.networkId.isValid())
 600         Core::createNetwork(user(), info);
 601
 602     if (!info.networkId.isValid()) {
 603         qWarning() << qPrintable(
 604             tr("CoreSession::createNetwork(): Got invalid networkId from Core when trying to create network %1!").arg(info.networkName));
 605         return;
 606     }
 607
 608     id = info.networkId.toInt();
 609     if (!_networks.contains(id)) {
 610         // create persistent chans
 611         QRegExp rx(R"(\s*(\S+)(?:\s*(\S+))?\s*)");
 612         foreach (QString channel, persistentChans) {
 613             if (!rx.exactMatch(channel)) {
 614                 qWarning() << QString("Invalid persistent channel declaration: %1").arg(channel);
 615                 continue;
 616             }
 617             Core::bufferInfo(user(), info.networkId, BufferInfo::ChannelBuffer, rx.cap(1), true);
 618             Core::setChannelPersistent(user(), info.networkId, rx.cap(1), true);
 619             if (!rx.cap(2).isEmpty())
 620                 Core::setPersistentChannelKey(user(), info.networkId, rx.cap(1), rx.cap(2));
 621         }
 622
 623         CoreNetwork* net = new CoreNetwork(id, this);
 624         connect(net, &CoreNetwork::displayMsg, this, &CoreSession::recvMessageFromServer);
 625         connect(net, &CoreNetwork::displayStatusMsg, this, &CoreSession::recvStatusMsgFromServer);
 626         connect(net, &CoreNetwork::disconnected, this, &CoreSession::networkDisconnected);
 627
 628         net->setNetworkInfo(info);
 629         net->setProxy(signalProxy());
 630         _networks[id] = net;
 631         signalProxy()->synchronize(net);
 632         emit networkCreated(id);
 633     }
 634     else {
 635         qWarning() << qPrintable(tr("CoreSession::createNetwork(): Trying to create a network that already exists, updating instead!"));
 636         _networks[info.networkId]->requestSetNetworkInfo(info);
 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, &CoreNetwork::displayMsg, this, nullptr);
 650         disconnect(net, &CoreNetwork::displayStatusMsg, this, nullptr);
 651         connect(net, &CoreNetwork::disconnected, this, &CoreSession::destroyNetwork);
 652         net->disconnectFromIrc();
 653     }
 654     else {
 655         destroyNetwork(id);
 656     }
 657 }
 658
 659 void CoreSession::destroyNetwork(NetworkId id)
 660 {
 661     QList<BufferId> removedBuffers = Core::requestBufferIdsForNetwork(user(), id);
 662     Network* net = _networks.take(id);
 663     if (net && Core::removeNetwork(user(), id)) {
 664         // make sure that all unprocessed RawMessages from this network are removed
 665         QList<RawMessage>::iterator messageIter = _messageQueue.begin();
 666         while (messageIter != _messageQueue.end()) {
 667             if (messageIter->networkId == id) {
 668                 messageIter = _messageQueue.erase(messageIter);
 669             }
 670             else {
 671                 ++messageIter;
 672             }
 673         }
 674         // remove buffers from syncer
 675         foreach (BufferId bufferId, removedBuffers) {
 676             _bufferSyncer->removeBuffer(bufferId);
 677         }
 678         emit networkRemoved(id);
 679         net->deleteLater();
 680     }
 681 }
 682
 683 void CoreSession::renameBuffer(const NetworkId& networkId, const QString& newName, const QString& oldName)
 684 {
 685     BufferInfo bufferInfo = Core::bufferInfo(user(), networkId, BufferInfo::QueryBuffer, oldName, false);
 686     if (bufferInfo.isValid()) {
 687         _bufferSyncer->renameBuffer(bufferInfo.bufferId(), newName);
 688     }
 689 }
 690
 691 void CoreSession::clientsConnected()
 692 {
 693     QHash<NetworkId, CoreNetwork*>::iterator netIter = _networks.begin();
 694     Identity* identity = nullptr;
 695     CoreNetwork* net = nullptr;
 696     IrcUser* me = nullptr;
 697     while (netIter != _networks.end()) {
 698         net = *netIter;
 699         ++netIter;
 700
 701         if (!net->isConnected())
 702             continue;
 703         identity = net->identityPtr();
 704         if (!identity)
 705             continue;
 706         me = net->me();
 707         if (!me)
 708             continue;
 709
 710         if (identity->detachAwayEnabled() && me->isAway()) {
 711             net->userInputHandler()->handleAway(BufferInfo(), QString());
 712         }
 713     }
 714 }
 715
 716 void CoreSession::clientsDisconnected()
 717 {
 718     QHash<NetworkId, CoreNetwork*>::iterator netIter = _networks.begin();
 719     Identity* identity = nullptr;
 720     CoreNetwork* net = nullptr;
 721     IrcUser* me = nullptr;
 722     QString awayReason;
 723     while (netIter != _networks.end()) {
 724         net = *netIter;
 725         ++netIter;
 726
 727         if (!net->isConnected())
 728             continue;
 729
 730         identity = net->identityPtr();
 731         if (!identity)
 732             continue;
 733         me = net->me();
 734         if (!me)
 735             continue;
 736
 737         if (identity->detachAwayEnabled() && !me->isAway()) {
 738             if (!identity->detachAwayReason().isEmpty())
 739                 awayReason = identity->detachAwayReason();
 740             net->setAutoAwayActive(true);
 741             // Allow handleAway() to format the current date/time in the string.
 742             net->userInputHandler()->handleAway(BufferInfo(), awayReason);
 743         }
 744     }
 745 }
 746
 747 void CoreSession::globalAway(const QString& msg, const bool skipFormatting)
 748 {
 749     QHash<NetworkId, CoreNetwork*>::iterator netIter = _networks.begin();
 750     CoreNetwork* net = nullptr;
 751     while (netIter != _networks.end()) {
 752         net = *netIter;
 753         ++netIter;
 754
 755         if (!net->isConnected())
 756             continue;
 757
 758         net->userInputHandler()->issueAway(msg, false /* no force away */, skipFormatting);
 759     }
 760 }
 761
 762 void CoreSession::changePassword(PeerPtr peer, const QString& userName, const QString& oldPassword, const QString& newPassword)
 763 {
 764     Q_UNUSED(peer);
 765
 766     bool success = false;
 767     UserId uid = Core::validateUser(userName, oldPassword);
 768     if (uid.isValid() && uid == user())
 769         success = Core::changeUserPassword(uid, newPassword);
 770
 771     signalProxy()->restrictTargetPeers(signalProxy()->sourcePeer(), [&] { emit passwordChanged(nullptr, success); });
 772 }
 773
 774 void CoreSession::kickClient(int peerId)
 775 {
 776     auto peer = signalProxy()->peerById(peerId);
 777     if (peer == nullptr) {
 778         qWarning() << "Invalid peer Id: " << peerId;
 779         return;
 780     }
 781     signalProxy()->restrictTargetPeers(peer, [&] { emit disconnectFromCore(); });
 782 }