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 "coreinfo.h"
  35 #include "coreirclisthelper.h"
  36 #include "corenetwork.h"
  37 #include "corenetworkconfig.h"
  38 #include "coresessioneventprocessor.h"
  39 #include "coretransfermanager.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 "logmessage.h"
  48 #include "messageevent.h"
  49 #include "remotepeer.h"
  50 #include "storage.h"
  51 #include "util.h"
  52
  53
  54 class ProcessMessagesEvent : public QEvent
  55 {
  56 public:
  57     ProcessMessagesEvent() : QEvent(QEvent::User) {}
  58 };
  59
  60
  61 CoreSession::CoreSession(UserId uid, bool restoreState, bool strictIdentEnabled, QObject *parent)
  62     : QObject(parent),
  63     _user(uid),
  64     _strictIdentEnabled(strictIdentEnabled),
  65     _signalProxy(new SignalProxy(SignalProxy::Server, this)),
  66     _aliasManager(this),
  67     _bufferSyncer(new CoreBufferSyncer(this)),
  68     _backlogManager(new CoreBacklogManager(this)),
  69     _bufferViewManager(new CoreBufferViewManager(_signalProxy, this)),
  70     _dccConfig(new CoreDccConfig(this)),
  71     _ircListHelper(new CoreIrcListHelper(this)),
  72     _networkConfig(new CoreNetworkConfig("GlobalNetworkConfig", this)),
  73     _coreInfo(new CoreInfo(this)),
  74     _transferManager(new CoreTransferManager(this)),
  75     _eventManager(new CoreEventManager(this)),
  76     _eventStringifier(new EventStringifier(this)),
  77     _sessionEventProcessor(new CoreSessionEventProcessor(this)),
  78     _ctcpParser(new CtcpParser(this)),
  79     _ircParser(new IrcParser(this)),
  80     scriptEngine(new QScriptEngine(this)),
  81     _processMessages(false),
  82     _ignoreListManager(this),
  83     _highlightRuleManager(this)
  84 {
  85     SignalProxy *p = signalProxy();
  86     p->setHeartBeatInterval(30);
  87     p->setMaxHeartBeatCount(60); // 30 mins until we throw a dead socket out
  88
  89     connect(p, SIGNAL(peerRemoved(Peer*)), SLOT(removeClient(Peer*)));
  90
  91     connect(p, SIGNAL(connected()), SLOT(clientsConnected()));
  92     connect(p, SIGNAL(disconnected()), SLOT(clientsDisconnected()));
  93
  94     p->attachSlot(SIGNAL(sendInput(BufferInfo, QString)), this, SLOT(msgFromClient(BufferInfo, QString)));
  95     p->attachSignal(this, SIGNAL(displayMsg(Message)));
  96     p->attachSignal(this, SIGNAL(displayStatusMsg(QString, QString)));
  97
  98     p->attachSignal(this, SIGNAL(identityCreated(const Identity &)));
  99     p->attachSignal(this, SIGNAL(identityRemoved(IdentityId)));
 100     p->attachSlot(SIGNAL(createIdentity(const Identity &, const QVariantMap &)), this, SLOT(createIdentity(const Identity &, const QVariantMap &)));
 101     p->attachSlot(SIGNAL(removeIdentity(IdentityId)), this, SLOT(removeIdentity(IdentityId)));
 102
 103     p->attachSignal(this, SIGNAL(networkCreated(NetworkId)));
 104     p->attachSignal(this, SIGNAL(networkRemoved(NetworkId)));
 105     p->attachSlot(SIGNAL(createNetwork(const NetworkInfo &, const QStringList &)), this, SLOT(createNetwork(const NetworkInfo &, const QStringList &)));
 106     p->attachSlot(SIGNAL(removeNetwork(NetworkId)), this, SLOT(removeNetwork(NetworkId)));
 107
 108     p->attachSlot(SIGNAL(changePassword(PeerPtr,QString,QString,QString)), this, SLOT(changePassword(PeerPtr,QString,QString,QString)));
 109     p->attachSignal(this, SIGNAL(passwordChanged(PeerPtr,bool)));
 110
 111     p->attachSlot(SIGNAL(kickClient(int)), this, SLOT(kickClient(int)));
 112     p->attachSignal(this, SIGNAL(disconnectFromCore()));
 113
 114     QVariantMap data;
 115     data["quasselVersion"] = Quassel::buildInfo().fancyVersionString;
 116     data["quasselBuildDate"] = Quassel::buildInfo().commitDate; // "BuildDate" for compatibility
 117     data["startTime"] = Core::instance()->startTime();
 118     data["sessionConnectedClients"] = 0;
 119     _coreInfo->setCoreData(data);
 120
 121     loadSettings();
 122     initScriptEngine();
 123
 124     eventManager()->registerObject(ircParser(), EventManager::NormalPriority);
 125     eventManager()->registerObject(sessionEventProcessor(), EventManager::HighPriority); // needs to process events *before* the stringifier!
 126     eventManager()->registerObject(ctcpParser(), EventManager::NormalPriority);
 127     eventManager()->registerObject(eventStringifier(), EventManager::NormalPriority);
 128     eventManager()->registerObject(this, EventManager::LowPriority); // for sending MessageEvents to the client
 129     // some events need to be handled after msg generation
 130     eventManager()->registerObject(sessionEventProcessor(), EventManager::LowPriority, "lateProcess");
 131     eventManager()->registerObject(ctcpParser(), EventManager::LowPriority, "send");
 132
 133     // periodically save our session state
 134     connect(Core::instance()->syncTimer(), SIGNAL(timeout()), this, SLOT(saveSessionState()));
 135
 136     p->synchronize(_bufferSyncer);
 137     p->synchronize(&aliasManager());
 138     p->synchronize(_backlogManager);
 139     p->synchronize(dccConfig());
 140     p->synchronize(ircListHelper());
 141     p->synchronize(networkConfig());
 142     p->synchronize(_coreInfo);
 143     p->synchronize(&_ignoreListManager);
 144     p->synchronize(&_highlightRuleManager);
 145     // Listen to network removed events
 146     connect(this, SIGNAL(networkRemoved(NetworkId)),
 147         &_highlightRuleManager, SLOT(networkRemoved(NetworkId)));
 148     p->synchronize(transferManager());
 149     // Restore session state
 150     if (restoreState)
 151         restoreSessionState();
 152
 153     emit initialized();
 154 }
 155
 156
 157 CoreSession::~CoreSession()
 158 {
 159     saveSessionState();
 160
 161     /* Why partially duplicate CoreNetwork destructor?  When each CoreNetwork quits in the
 162      * destructor, disconnections are processed in sequence for each object.  For many IRC servers
 163      * on a slow network, this could significantly delay core shutdown [msecs wait * network count].
 164      *
 165      * Here, CoreSession first calls disconnect on all networks, letting them all start
 166      * disconnecting before beginning to sequentially wait for each network.  Ideally, after the
 167      * first network is disconnected, the other networks will have already closed.  Worst-case may
 168      * still wait [msecs wait time * num. of networks], but the risk should be much lower.
 169      *
 170      * CoreNetwork should still do cleanup in its own destructor in case a network is deleted
 171      * outside of deleting the whole CoreSession.
 172      *
 173      * If this proves to be problematic in the future, there's an alternative Qt signal-based system
 174      * implemented in another pull request that guarentees a maximum amount of time to disconnect,
 175      * but at the cost of more complex code.
 176      *
 177      * See https://github.com/quassel/quassel/pull/203
 178      */
 179
 180     foreach(CoreNetwork *net, _networks.values()) {
 181         // Request each network properly disconnect, but don't count as user-requested disconnect
 182         if (net->socketConnected()) {
 183             // Only try if the socket's fully connected (not initializing or disconnecting).
 184             // Force an immediate disconnect, jumping the command queue.  Ensures the proper QUIT is
 185             // shown even if other messages are queued.
 186             net->disconnectFromIrc(false, QString(), false, true);
 187         }
 188     }
 189
 190     // Process the putCmd events that trigger the quit.  Without this, shutting down the core
 191     // results in abrubtly closing the socket rather than sending the QUIT as expected.
 192     QCoreApplication::processEvents();
 193
 194     foreach(CoreNetwork *net, _networks.values()) {
 195         // Wait briefly for each network to disconnect.  Sometimes it takes a little while to send.
 196         if (!net->forceDisconnect()) {
 197             qWarning() << "Timed out quitting network" << net->networkName() <<
 198                           "(user ID " << net->userId() << ")";
 199         }
 200         // Delete the network now that it's closed
 201         delete net;
 202     }
 203 }
 204
 205
 206 CoreNetwork *CoreSession::network(NetworkId id) const
 207 {
 208     if (_networks.contains(id)) return _networks[id];
 209     return 0;
 210 }
 211
 212
 213 CoreIdentity *CoreSession::identity(IdentityId id) const
 214 {
 215     if (_identities.contains(id)) return _identities[id];
 216     return 0;
 217 }
 218
 219
 220 void CoreSession::loadSettings()
 221 {
 222     CoreUserSettings s(user());
 223
 224     // migrate to db
 225     QList<IdentityId> ids = s.identityIds();
 226     QList<NetworkInfo> networkInfos = Core::networks(user());
 227     foreach(IdentityId id, ids) {
 228         CoreIdentity identity(s.identity(id));
 229         IdentityId newId = Core::createIdentity(user(), identity);
 230         QList<NetworkInfo>::iterator networkIter = networkInfos.begin();
 231         while (networkIter != networkInfos.end()) {
 232             if (networkIter->identity == id) {
 233                 networkIter->identity = newId;
 234                 Core::updateNetwork(user(), *networkIter);
 235                 networkIter = networkInfos.erase(networkIter);
 236             }
 237             else {
 238                 ++networkIter;
 239             }
 240         }
 241         s.removeIdentity(id);
 242     }
 243     // end of migration
 244
 245     foreach(CoreIdentity identity, Core::identities(user())) {
 246         createIdentity(identity);
 247     }
 248
 249     foreach(NetworkInfo info, Core::networks(user())) {
 250         createNetwork(info);
 251     }
 252 }
 253
 254
 255 void CoreSession::saveSessionState() const
 256 {
 257     _bufferSyncer->storeDirtyIds();
 258     _bufferViewManager->saveBufferViews();
 259     _networkConfig->save();
 260 }
 261
 262
 263 void CoreSession::restoreSessionState()
 264 {
 265     QList<NetworkId> nets = Core::connectedNetworks(user());
 266     CoreNetwork *net = 0;
 267     foreach(NetworkId id, nets) {
 268         net = network(id);
 269         Q_ASSERT(net);
 270         net->connectToIrc();
 271     }
 272 }
 273
 274
 275 void CoreSession::addClient(RemotePeer *peer)
 276 {
 277     signalProxy()->setTargetPeer(peer);
 278
 279     peer->dispatch(sessionState());
 280     signalProxy()->addPeer(peer);
 281     _coreInfo->setConnectedClientData(signalProxy()->peerCount(), signalProxy()->peerData());
 282
 283     signalProxy()->setTargetPeer(nullptr);
 284 }
 285
 286
 287 void CoreSession::addClient(InternalPeer *peer)
 288 {
 289     signalProxy()->addPeer(peer);
 290     emit sessionState(sessionState());
 291 }
 292
 293
 294 void CoreSession::removeClient(Peer *peer)
 295 {
 296     RemotePeer *p = qobject_cast<RemotePeer *>(peer);
 297     if (p)
 298         quInfo() << qPrintable(tr("Client")) << p->description() << qPrintable(tr("disconnected (UserId: %1).").arg(user().toInt()));
 299     _coreInfo->setConnectedClientData(signalProxy()->peerCount(), signalProxy()->peerData());
 300 }
 301
 302
 303 QHash<QString, QString> CoreSession::persistentChannels(NetworkId id) const
 304 {
 305     return Core::persistentChannels(user(), id);
 306 }
 307
 308
 309 QHash<QString, QByteArray> CoreSession::bufferCiphers(NetworkId id) const
 310 {
 311     return Core::bufferCiphers(user(), id);
 312 }
 313
 314 void CoreSession::setBufferCipher(NetworkId id, const QString &bufferName, const QByteArray &cipher) const
 315 {
 316     Core::setBufferCipher(user(), id, bufferName, cipher);
 317 }
 318
 319
 320 // FIXME switch to BufferId
 321 void CoreSession::msgFromClient(BufferInfo bufinfo, QString msg)
 322 {
 323     CoreNetwork *net = network(bufinfo.networkId());
 324     if (net) {
 325         net->userInput(bufinfo, msg);
 326     }
 327     else {
 328         qWarning() << "Trying to send to unconnected network:" << msg;
 329     }
 330 }
 331
 332
 333 // ALL messages coming pass through these functions before going to the GUI.
 334 // So this is the perfect place for storing the backlog and log stuff.
 335 void CoreSession::recvMessageFromServer(NetworkId networkId, Message::Type type, BufferInfo::Type bufferType,
 336     const QString &target, const QString &text_, const QString &sender, Message::Flags flags)
 337 {
 338     // U+FDD0 and U+FDD1 are special characters for Qt's text engine, specifically they mark the boundaries of
 339     // text frames in a QTextDocument. This might lead to problems in widgets displaying QTextDocuments (such as
 340     // KDE's notifications), hence we remove those just to be safe.
 341     QString text = text_;
 342     text.remove(QChar(0xfdd0)).remove(QChar(0xfdd1));
 343     RawMessage rawMsg(networkId, type, bufferType, target, text, sender, flags);
 344
 345     // check for HardStrictness ignore
 346     CoreNetwork *currentNetwork = network(networkId);
 347     QString networkName = currentNetwork ? currentNetwork->networkName() : QString("");
 348     if (_ignoreListManager.match(rawMsg, networkName) == IgnoreListManager::HardStrictness)
 349         return;
 350
 351
 352     if (currentNetwork && _highlightRuleManager.match(rawMsg, currentNetwork->myNick(), currentNetwork->identityPtr()->nicks()))
 353         rawMsg.flags |= Message::Flag::Highlight;
 354
 355     _messageQueue << rawMsg;
 356     if (!_processMessages) {
 357         _processMessages = true;
 358         QCoreApplication::postEvent(this, new ProcessMessagesEvent());
 359     }
 360 }
 361
 362
 363 void CoreSession::recvStatusMsgFromServer(QString msg)
 364 {
 365     CoreNetwork *net = qobject_cast<CoreNetwork *>(sender());
 366     Q_ASSERT(net);
 367     emit displayStatusMsg(net->networkName(), msg);
 368 }
 369
 370
 371 void CoreSession::processMessageEvent(MessageEvent *event)
 372 {
 373     recvMessageFromServer(event->networkId(), event->msgType(), event->bufferType(),
 374         event->target().isNull() ? "" : event->target(),
 375         event->text().isNull() ? "" : event->text(),
 376         event->sender().isNull() ? "" : event->sender(),
 377         event->msgFlags());
 378 }
 379
 380
 381 QList<BufferInfo> CoreSession::buffers() const
 382 {
 383     return Core::requestBuffers(user());
 384 }
 385
 386
 387 void CoreSession::customEvent(QEvent *event)
 388 {
 389     if (event->type() != QEvent::User)
 390         return;
 391
 392     processMessages();
 393     event->accept();
 394 }
 395
 396
 397 void CoreSession::processMessages()
 398 {
 399     if (_messageQueue.count() == 1) {
 400         const RawMessage &rawMsg = _messageQueue.first();
 401         bool createBuffer = !(rawMsg.flags & Message::Redirected);
 402         BufferInfo bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, rawMsg.bufferType, rawMsg.target, createBuffer);
 403         if (!bufferInfo.isValid()) {
 404             Q_ASSERT(!createBuffer);
 405             bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, BufferInfo::StatusBuffer, "");
 406         }
 407         Message msg(bufferInfo, rawMsg.type, rawMsg.text, rawMsg.sender, senderPrefixes(rawMsg.sender, bufferInfo),
 408                     realName(rawMsg.sender, rawMsg.networkId),  avatarUrl(rawMsg.sender, rawMsg.networkId),
 409                     rawMsg.flags);
 410         if(Core::storeMessage(msg))
 411             emit displayMsg(msg);
 412     }
 413     else {
 414         QHash<NetworkId, QHash<QString, BufferInfo> > bufferInfoCache;
 415         MessageList messages;
 416         QList<RawMessage> redirectedMessages; // list of Messages which don't enforce a buffer creation
 417         BufferInfo bufferInfo;
 418         for (int i = 0; i < _messageQueue.count(); i++) {
 419             const RawMessage &rawMsg = _messageQueue.at(i);
 420             if (bufferInfoCache.contains(rawMsg.networkId) && bufferInfoCache[rawMsg.networkId].contains(rawMsg.target)) {
 421                 bufferInfo = bufferInfoCache[rawMsg.networkId][rawMsg.target];
 422             }
 423             else {
 424                 bool createBuffer = !(rawMsg.flags & Message::Redirected);
 425                 bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, rawMsg.bufferType, rawMsg.target, createBuffer);
 426                 if (!bufferInfo.isValid()) {
 427                     Q_ASSERT(!createBuffer);
 428                     redirectedMessages << rawMsg;
 429                     continue;
 430                 }
 431                 bufferInfoCache[rawMsg.networkId][rawMsg.target] = bufferInfo;
 432             }
 433             Message msg(bufferInfo, rawMsg.type, rawMsg.text, rawMsg.sender, senderPrefixes(rawMsg.sender, bufferInfo),
 434                         realName(rawMsg.sender, rawMsg.networkId),  avatarUrl(rawMsg.sender, rawMsg.networkId),
 435                         rawMsg.flags);
 436             messages << msg;
 437         }
 438
 439         // recheck if there exists a buffer to store a redirected message in
 440         for (int i = 0; i < redirectedMessages.count(); i++) {
 441             const RawMessage &rawMsg = redirectedMessages.at(i);
 442             if (bufferInfoCache.contains(rawMsg.networkId) && bufferInfoCache[rawMsg.networkId].contains(rawMsg.target)) {
 443                 bufferInfo = bufferInfoCache[rawMsg.networkId][rawMsg.target];
 444             }
 445             else {
 446                 // no luck -> we store them in the StatusBuffer
 447                 bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, BufferInfo::StatusBuffer, "");
 448                 // add the StatusBuffer to the Cache in case there are more Messages for the original target
 449                 bufferInfoCache[rawMsg.networkId][rawMsg.target] = bufferInfo;
 450             }
 451             Message msg(bufferInfo, rawMsg.type, rawMsg.text, rawMsg.sender, senderPrefixes(rawMsg.sender, bufferInfo),
 452                         realName(rawMsg.sender, rawMsg.networkId),  avatarUrl(rawMsg.sender, rawMsg.networkId),
 453                         rawMsg.flags);
 454             messages << msg;
 455         }
 456
 457         if(Core::storeMessages(messages)) {
 458             // FIXME: extend protocol to a displayMessages(MessageList)
 459             for (int i = 0; i < messages.count(); i++) {
 460                 emit displayMsg(messages[i]);
 461             }
 462         }
 463     }
 464     _processMessages = false;
 465     _messageQueue.clear();
 466 }
 467
 468 QString CoreSession::senderPrefixes(const QString &sender, const BufferInfo &bufferInfo) const
 469 {
 470     CoreNetwork *currentNetwork = network(bufferInfo.networkId());
 471     if (!currentNetwork) {
 472         return {};
 473     }
 474
 475     if (bufferInfo.type() != BufferInfo::ChannelBuffer) {
 476         return {};
 477     }
 478
 479     IrcChannel *currentChannel = currentNetwork->ircChannel(bufferInfo.bufferName());
 480     if (!currentChannel) {
 481         return {};
 482     }
 483
 484     const QString modes = currentChannel->userModes(nickFromMask(sender).toLower());
 485     return currentNetwork->modesToPrefixes(modes);
 486 }
 487
 488 QString CoreSession::realName(const QString &sender, NetworkId networkId) const
 489 {
 490     CoreNetwork *currentNetwork = network(networkId);
 491     if (!currentNetwork) {
 492         return {};
 493     }
 494
 495     IrcUser *currentUser = currentNetwork->ircUser(nickFromMask(sender));
 496     if (!currentUser) {
 497         return {};
 498     }
 499
 500     return currentUser->realName();
 501 }
 502
 503 QString CoreSession::avatarUrl(const QString &sender, NetworkId networkId) const
 504 {
 505     Q_UNUSED(sender);
 506     Q_UNUSED(networkId);
 507     // Currently we do not have a way to retrieve this value yet.
 508     //
 509     // This likely will require implementing IRCv3's METADATA spec.
 510     // See https://ircv3.net/irc/
 511     // And https://blog.irccloud.com/avatars/
 512     return "";
 513 }
 514
 515 Protocol::SessionState CoreSession::sessionState() const
 516 {
 517     QVariantList bufferInfos;
 518     QVariantList networkIds;
 519     QVariantList identities;
 520
 521     foreach(const BufferInfo &id, buffers())
 522         bufferInfos << QVariant::fromValue(id);
 523     foreach(const NetworkId &id, _networks.keys())
 524         networkIds << QVariant::fromValue(id);
 525     foreach(const Identity *i, _identities.values())
 526         identities << QVariant::fromValue(*i);
 527
 528     return Protocol::SessionState(identities, bufferInfos, networkIds);
 529 }
 530
 531
 532 void CoreSession::initScriptEngine()
 533 {
 534     signalProxy()->attachSlot(SIGNAL(scriptRequest(QString)), this, SLOT(scriptRequest(QString)));
 535     signalProxy()->attachSignal(this, SIGNAL(scriptResult(QString)));
 536
 537     // FIXME
 538     //QScriptValue storage_ = scriptEngine->newQObject(storage);
 539     //scriptEngine->globalObject().setProperty("storage", storage_);
 540 }
 541
 542
 543 void CoreSession::scriptRequest(QString script)
 544 {
 545     emit scriptResult(scriptEngine->evaluate(script).toString());
 546 }
 547
 548
 549 /*** Identity Handling ***/
 550 void CoreSession::createIdentity(const Identity &identity, const QVariantMap &additional)
 551 {
 552 #ifndef HAVE_SSL
 553     Q_UNUSED(additional)
 554 #endif
 555
 556     CoreIdentity coreIdentity(identity);
 557 #ifdef HAVE_SSL
 558     if (additional.contains("KeyPem"))
 559         coreIdentity.setSslKey(additional["KeyPem"].toByteArray());
 560     if (additional.contains("CertPem"))
 561         coreIdentity.setSslCert(additional["CertPem"].toByteArray());
 562 #endif
 563     qDebug() << Q_FUNC_INFO;
 564     IdentityId id = Core::createIdentity(user(), coreIdentity);
 565     if (!id.isValid())
 566         return;
 567     else
 568         createIdentity(coreIdentity);
 569 }
 570
 571 const QString CoreSession::strictCompliantIdent(const CoreIdentity *identity) {
 572     if (_strictIdentEnabled) {
 573         // Strict mode enabled: only allow the user's Quassel username as an ident
 574         return Core::instance()->strictSysIdent(_user);
 575     } else {
 576         // Strict mode disabled: allow any identity specified
 577         return identity->ident();
 578     }
 579 }
 580
 581 void CoreSession::createIdentity(const CoreIdentity &identity)
 582 {
 583     CoreIdentity *coreIdentity = new CoreIdentity(identity, this);
 584     _identities[identity.id()] = coreIdentity;
 585     // CoreIdentity has its own synchronize method since its "private" sslManager needs to be synced as well
 586     coreIdentity->synchronize(signalProxy());
 587     connect(coreIdentity, SIGNAL(updated()), this, SLOT(updateIdentityBySender()));
 588     emit identityCreated(*coreIdentity);
 589 }
 590
 591
 592 void CoreSession::updateIdentityBySender()
 593 {
 594     CoreIdentity *identity = qobject_cast<CoreIdentity *>(sender());
 595     if (!identity)
 596         return;
 597     Core::updateIdentity(user(), *identity);
 598 }
 599
 600
 601 void CoreSession::removeIdentity(IdentityId id)
 602 {
 603     CoreIdentity *identity = _identities.take(id);
 604     if (identity) {
 605         emit identityRemoved(id);
 606         Core::removeIdentity(user(), id);
 607         identity->deleteLater();
 608     }
 609 }
 610
 611
 612 /*** Network Handling ***/
 613
 614 void CoreSession::createNetwork(const NetworkInfo &info_, const QStringList &persistentChans)
 615 {
 616     NetworkInfo info = info_;
 617     int id;
 618
 619     if (!info.networkId.isValid())
 620         Core::createNetwork(user(), info);
 621
 622     if (!info.networkId.isValid()) {
 623         qWarning() << qPrintable(tr("CoreSession::createNetwork(): Got invalid networkId from Core when trying to create network %1!").arg(info.networkName));
 624         return;
 625     }
 626
 627     id = info.networkId.toInt();
 628     if (!_networks.contains(id)) {
 629         // create persistent chans
 630         QRegExp rx("\\s*(\\S+)(?:\\s*(\\S+))?\\s*");
 631         foreach(QString channel, persistentChans) {
 632             if (!rx.exactMatch(channel)) {
 633                 qWarning() << QString("Invalid persistent channel declaration: %1").arg(channel);
 634                 continue;
 635             }
 636             Core::bufferInfo(user(), info.networkId, BufferInfo::ChannelBuffer, rx.cap(1), true);
 637             Core::setChannelPersistent(user(), info.networkId, rx.cap(1), true);
 638             if (!rx.cap(2).isEmpty())
 639                 Core::setPersistentChannelKey(user(), info.networkId, rx.cap(1), rx.cap(2));
 640         }
 641
 642         CoreNetwork *net = new CoreNetwork(id, this);
 643         connect(net, SIGNAL(displayMsg(NetworkId, Message::Type, BufferInfo::Type, const QString &, const QString &, const QString &, Message::Flags)),
 644             SLOT(recvMessageFromServer(NetworkId, Message::Type, BufferInfo::Type, const QString &, const QString &, const QString &, Message::Flags)));
 645         connect(net, SIGNAL(displayStatusMsg(QString)), SLOT(recvStatusMsgFromServer(QString)));
 646         connect(net, SIGNAL(disconnected(NetworkId)), SIGNAL(networkDisconnected(NetworkId)));
 647
 648         net->setNetworkInfo(info);
 649         net->setProxy(signalProxy());
 650         _networks[id] = net;
 651         signalProxy()->synchronize(net);
 652         emit networkCreated(id);
 653     }
 654     else {
 655         qWarning() << qPrintable(tr("CoreSession::createNetwork(): Trying to create a network that already exists, updating instead!"));
 656         _networks[info.networkId]->requestSetNetworkInfo(info);
 657     }
 658 }
 659
 660
 661 void CoreSession::removeNetwork(NetworkId id)
 662 {
 663     // Make sure the network is disconnected!
 664     CoreNetwork *net = network(id);
 665     if (!net)
 666         return;
 667
 668     if (net->connectionState() != Network::Disconnected) {
 669         // make sure we no longer receive data from the tcp buffer
 670         disconnect(net, SIGNAL(displayMsg(NetworkId, Message::Type, BufferInfo::Type, const QString &, const QString &, const QString &, Message::Flags)), this, 0);
 671         disconnect(net, SIGNAL(displayStatusMsg(QString)), this, 0);
 672         connect(net, SIGNAL(disconnected(NetworkId)), this, SLOT(destroyNetwork(NetworkId)));
 673         net->disconnectFromIrc();
 674     }
 675     else {
 676         destroyNetwork(id);
 677     }
 678 }
 679
 680
 681 void CoreSession::destroyNetwork(NetworkId id)
 682 {
 683     QList<BufferId> removedBuffers = Core::requestBufferIdsForNetwork(user(), id);
 684     Network *net = _networks.take(id);
 685     if (net && Core::removeNetwork(user(), id)) {
 686         // make sure that all unprocessed RawMessages from this network are removed
 687         QList<RawMessage>::iterator messageIter = _messageQueue.begin();
 688         while (messageIter != _messageQueue.end()) {
 689             if (messageIter->networkId == id) {
 690                 messageIter = _messageQueue.erase(messageIter);
 691             }
 692             else {
 693                 ++messageIter;
 694             }
 695         }
 696         // remove buffers from syncer
 697         foreach(BufferId bufferId, removedBuffers) {
 698             _bufferSyncer->removeBuffer(bufferId);
 699         }
 700         emit networkRemoved(id);
 701         net->deleteLater();
 702     }
 703 }
 704
 705
 706 void CoreSession::renameBuffer(const NetworkId &networkId, const QString &newName, const QString &oldName)
 707 {
 708     BufferInfo bufferInfo = Core::bufferInfo(user(), networkId, BufferInfo::QueryBuffer, oldName, false);
 709     if (bufferInfo.isValid()) {
 710         _bufferSyncer->renameBuffer(bufferInfo.bufferId(), newName);
 711     }
 712 }
 713
 714
 715 void CoreSession::clientsConnected()
 716 {
 717     QHash<NetworkId, CoreNetwork *>::iterator netIter = _networks.begin();
 718     Identity *identity = 0;
 719     CoreNetwork *net = 0;
 720     IrcUser *me = 0;
 721     while (netIter != _networks.end()) {
 722         net = *netIter;
 723         ++netIter;
 724
 725         if (!net->isConnected())
 726             continue;
 727         identity = net->identityPtr();
 728         if (!identity)
 729             continue;
 730         me = net->me();
 731         if (!me)
 732             continue;
 733
 734         if (identity->detachAwayEnabled() && me->isAway()) {
 735             net->userInputHandler()->handleAway(BufferInfo(), QString());
 736         }
 737     }
 738 }
 739
 740
 741 void CoreSession::clientsDisconnected()
 742 {
 743     QHash<NetworkId, CoreNetwork *>::iterator netIter = _networks.begin();
 744     Identity *identity = 0;
 745     CoreNetwork *net = 0;
 746     IrcUser *me = 0;
 747     QString awayReason;
 748     while (netIter != _networks.end()) {
 749         net = *netIter;
 750         ++netIter;
 751
 752         if (!net->isConnected())
 753             continue;
 754
 755         identity = net->identityPtr();
 756         if (!identity)
 757             continue;
 758         me = net->me();
 759         if (!me)
 760             continue;
 761
 762         if (identity->detachAwayEnabled() && !me->isAway()) {
 763             if (!identity->detachAwayReason().isEmpty())
 764                 awayReason = identity->detachAwayReason();
 765             net->setAutoAwayActive(true);
 766             // Allow handleAway() to format the current date/time in the string.
 767             net->userInputHandler()->handleAway(BufferInfo(), awayReason);
 768         }
 769     }
 770 }
 771
 772
 773 void CoreSession::globalAway(const QString &msg, const bool skipFormatting)
 774 {
 775     QHash<NetworkId, CoreNetwork *>::iterator netIter = _networks.begin();
 776     CoreNetwork *net = 0;
 777     while (netIter != _networks.end()) {
 778         net = *netIter;
 779         ++netIter;
 780
 781         if (!net->isConnected())
 782             continue;
 783
 784         net->userInputHandler()->issueAway(msg, false /* no force away */, skipFormatting);
 785     }
 786 }
 787
 788 void CoreSession::changePassword(PeerPtr peer, const QString &userName, const QString &oldPassword, const QString &newPassword) {
 789     Q_UNUSED(peer);
 790
 791     bool success = false;
 792     UserId uid = Core::validateUser(userName, oldPassword);
 793     if (uid.isValid() && uid == user())
 794         success = Core::changeUserPassword(uid, newPassword);
 795
 796     signalProxy()->restrictTargetPeers(signalProxy()->sourcePeer(), [&]{
 797         emit passwordChanged(nullptr, success);
 798     });
 799 }
 800
 801 void CoreSession::kickClient(int peerId) {
 802     auto peer = signalProxy()->peerById(peerId);
 803     if (peer == nullptr) {
 804         qWarning() << "Invalid peer Id: " << peerId;
 805         return;
 806     }
 807     signalProxy()->restrictTargetPeers(peer, [&]{
 808         emit disconnectFromCore();
 809     });
 810 }