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