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