src/core/coresession.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2019 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 <utility>
  24
  25 #include <QtScript>
  26
  27 #include "core.h"
  28 #include "corebacklogmanager.h"
  29 #include "corebuffersyncer.h"
  30 #include "corebufferviewmanager.h"
  31 #include "coredccconfig.h"
  32 #include "coreeventmanager.h"
  33 #include "coreidentity.h"
  34 #include "coreignorelistmanager.h"
  35 #include "coreinfo.h"
  36 #include "coreirclisthelper.h"
  37 #include "corenetwork.h"
  38 #include "corenetworkconfig.h"
  39 #include "coresessioneventprocessor.h"
  40 #include "coretransfermanager.h"
  41 #include "coreuserinputhandler.h"
  42 #include "coreusersettings.h"
  43 #include "ctcpparser.h"
  44 #include "eventstringifier.h"
  45 #include "internalpeer.h"
  46 #include "ircchannel.h"
  47 #include "ircparser.h"
  48 #include "ircuser.h"
  49 #include "messageevent.h"
  50 #include "remotepeer.h"
  51 #include "storage.h"
  52 #include "util.h"
  53
  54 class ProcessMessagesEvent : public QEvent
  55 {
  56 public:
  57     ProcessMessagesEvent()
  58         : QEvent(QEvent::User)
  59     {}
  60 };
  61
  62 CoreSession::CoreSession(UserId uid, bool restoreState, bool strictIdentEnabled, QObject* parent)
  63     : QObject(parent)
  64     , _user(uid)
  65     , _strictIdentEnabled(strictIdentEnabled)
  66     , _signalProxy(new SignalProxy(SignalProxy::Server, this))
  67     , _aliasManager(this)
  68     , _bufferSyncer(new CoreBufferSyncer(this))
  69     , _backlogManager(new CoreBacklogManager(this))
  70     , _bufferViewManager(new CoreBufferViewManager(_signalProxy, this))
  71     , _dccConfig(new CoreDccConfig(this))
  72     , _ircListHelper(new CoreIrcListHelper(this))
  73     , _networkConfig(new CoreNetworkConfig("GlobalNetworkConfig", this))
  74     , _coreInfo(new CoreInfo(this))
  75     , _transferManager(new CoreTransferManager(this))
  76     , _eventManager(new CoreEventManager(this))
  77     , _eventStringifier(new EventStringifier(this))
  78     , _sessionEventProcessor(new CoreSessionEventProcessor(this))
  79     , _ctcpParser(new CtcpParser(this))
  80     , _ircParser(new IrcParser(this))
  81     , scriptEngine(new QScriptEngine(this))
  82     , _processMessages(false)
  83     , _ignoreListManager(this)
  84     , _highlightRuleManager(this)
  85 {
  86     SignalProxy* p = signalProxy();
  87     p->setHeartBeatInterval(30);
  88     p->setMaxHeartBeatCount(60);  // 30 mins until we throw a dead socket out
  89
  90     connect(p, &SignalProxy::peerRemoved, this, &CoreSession::removeClient);
  91
  92     connect(p, &SignalProxy::connected, this, &CoreSession::clientsConnected);
  93     connect(p, &SignalProxy::disconnected, this, &CoreSession::clientsDisconnected);
  94
  95     p->attachSlot(SIGNAL(sendInput(BufferInfo,QString)), this, &CoreSession::msgFromClient);
  96     p->attachSignal(this, &CoreSession::displayMsg);
  97     p->attachSignal(this, &CoreSession::displayStatusMsg);
  98
  99     p->attachSignal(this, &CoreSession::identityCreated);
 100     p->attachSignal(this, &CoreSession::identityRemoved);
 101     p->attachSlot(SIGNAL(createIdentity(Identity,QVariantMap)), this, selectOverload<const Identity&, const QVariantMap&>(&CoreSession::createIdentity));
 102     p->attachSlot(SIGNAL(removeIdentity(IdentityId)), this, &CoreSession::removeIdentity);
 103
 104     p->attachSignal(this, &CoreSession::networkCreated);
 105     p->attachSignal(this, &CoreSession::networkRemoved);
 106     p->attachSlot(SIGNAL(createNetwork(NetworkInfo,QStringList)), this,&CoreSession::createNetwork);
 107     p->attachSlot(SIGNAL(removeNetwork(NetworkId)), this, &CoreSession::removeNetwork);
 108
 109     p->attachSlot(SIGNAL(changePassword(PeerPtr,QString,QString,QString)), this, &CoreSession::changePassword);
 110     p->attachSignal(this, &CoreSession::passwordChanged);
 111
 112     p->attachSlot(SIGNAL(kickClient(int)), this, &CoreSession::kickClient);
 113     p->attachSignal(this, &CoreSession::disconnectFromCore);
 114
 115     QVariantMap data;
 116     data["quasselVersion"] = Quassel::buildInfo().fancyVersionString;
 117     data["quasselBuildDate"] = Quassel::buildInfo().commitDate;  // "BuildDate" for compatibility
 118     data["startTime"] = Core::startTime();
 119     data["sessionConnectedClients"] = 0;
 120     _coreInfo->setCoreData(data);
 121
 122     loadSettings();
 123     initScriptEngine();
 124
 125     eventManager()->registerObject(ircParser(), EventManager::NormalPriority);
 126     eventManager()->registerObject(sessionEventProcessor(), EventManager::HighPriority);  // needs to process events *before* the stringifier!
 127     eventManager()->registerObject(ctcpParser(), EventManager::NormalPriority);
 128     eventManager()->registerObject(eventStringifier(), EventManager::NormalPriority);
 129     eventManager()->registerObject(this, EventManager::LowPriority);  // for sending MessageEvents to the client
 130     // some events need to be handled after msg generation
 131     eventManager()->registerObject(sessionEventProcessor(), EventManager::LowPriority, "lateProcess");
 132     eventManager()->registerObject(ctcpParser(), EventManager::LowPriority, "send");
 133
 134     // periodically save our session state
 135     connect(Core::syncTimer(), &QTimer::timeout, this, &CoreSession::saveSessionState);
 136
 137     p->synchronize(_bufferSyncer);
 138     p->synchronize(&aliasManager());
 139     p->synchronize(_backlogManager);
 140     p->synchronize(dccConfig());
 141     p->synchronize(ircListHelper());
 142     p->synchronize(networkConfig());
 143     p->synchronize(_coreInfo);
 144     p->synchronize(&_ignoreListManager);
 145     p->synchronize(&_highlightRuleManager);
 146     // Listen to network removed events
 147     connect(this, &CoreSession::networkRemoved, &_highlightRuleManager, &HighlightRuleManager::networkRemoved);
 148     p->synchronize(transferManager());
 149     // Restore session state
 150     if (restoreState)
 151         restoreSessionState();
 152
 153     emit initialized();
 154 }
 155
 156 void CoreSession::shutdown()
 157 {
 158     saveSessionState();
 159
 160     // Request disconnect from all connected networks in parallel, and wait until every network
 161     // has emitted the disconnected() signal before deleting the session itself
 162     for (CoreNetwork* net : _networks.values()) {
 163         if (net->socketState() != QAbstractSocket::UnconnectedState) {
 164             _networksPendingDisconnect.insert(net->networkId());
 165             connect(net, &CoreNetwork::disconnected, this, &CoreSession::onNetworkDisconnected);
 166             net->shutdown();
 167         }
 168     }
 169
 170     if (_networksPendingDisconnect.isEmpty()) {
 171         // Nothing to do, suicide so the core can shut down
 172         deleteLater();
 173     }
 174 }
 175
 176 void CoreSession::onNetworkDisconnected(NetworkId networkId)
 177 {
 178     _networksPendingDisconnect.remove(networkId);
 179     if (_networksPendingDisconnect.isEmpty()) {
 180         // We're done, suicide so the core can shut down
 181         deleteLater();
 182     }
 183 }
 184
 185 CoreNetwork* CoreSession::network(NetworkId id) const
 186 {
 187     if (_networks.contains(id))
 188         return _networks[id];
 189     return nullptr;
 190 }
 191
 192 CoreIdentity* CoreSession::identity(IdentityId id) const
 193 {
 194     if (_identities.contains(id))
 195         return _identities[id];
 196     return nullptr;
 197 }
 198
 199 void CoreSession::loadSettings()
 200 {
 201     CoreUserSettings s(user());
 202
 203     // migrate to db
 204     QList<IdentityId> ids = s.identityIds();
 205     QList<NetworkInfo> networkInfos = Core::networks(user());
 206     for (IdentityId id : ids) {
 207         CoreIdentity identity(s.identity(id));
 208         IdentityId newId = Core::createIdentity(user(), identity);
 209         QList<NetworkInfo>::iterator networkIter = networkInfos.begin();
 210         while (networkIter != networkInfos.end()) {
 211             if (networkIter->identity == id) {
 212                 networkIter->identity = newId;
 213                 Core::updateNetwork(user(), *networkIter);
 214                 networkIter = networkInfos.erase(networkIter);
 215             }
 216             else {
 217                 ++networkIter;
 218             }
 219         }
 220         s.removeIdentity(id);
 221     }
 222     // end of migration
 223
 224     for (const CoreIdentity& identity : Core::identities(user())) {
 225         createIdentity(identity);
 226     }
 227
 228     for (const NetworkInfo& info : Core::networks(user())) {
 229         createNetwork(info);
 230     }
 231 }
 232
 233 void CoreSession::saveSessionState() const
 234 {
 235     _bufferSyncer->storeDirtyIds();
 236     _bufferViewManager->saveBufferViews();
 237     _networkConfig->save();
 238 }
 239
 240 void CoreSession::restoreSessionState()
 241 {
 242     QList<NetworkId> nets = Core::connectedNetworks(user());
 243     CoreNetwork* net = nullptr;
 244     for (NetworkId id :  nets) {
 245         net = network(id);
 246         Q_ASSERT(net);
 247         net->connectToIrc();
 248     }
 249 }
 250
 251 void CoreSession::addClient(RemotePeer* peer)
 252 {
 253     signalProxy()->setTargetPeer(peer);
 254
 255     peer->dispatch(sessionState());
 256     signalProxy()->addPeer(peer);
 257     _coreInfo->setConnectedClientData(signalProxy()->peerCount(), signalProxy()->peerData());
 258
 259     signalProxy()->setTargetPeer(nullptr);
 260 }
 261
 262 void CoreSession::addClient(InternalPeer* peer)
 263 {
 264     signalProxy()->addPeer(peer);
 265     emit sessionStateReceived(sessionState());
 266 }
 267
 268 void CoreSession::removeClient(Peer* peer)
 269 {
 270     auto* p = qobject_cast<RemotePeer*>(peer);
 271     if (p)
 272         qInfo() << qPrintable(tr("Client")) << p->description() << qPrintable(tr("disconnected (UserId: %1).").arg(user().toInt()));
 273     _coreInfo->setConnectedClientData(signalProxy()->peerCount(), signalProxy()->peerData());
 274 }
 275
 276 QHash<QString, QString> CoreSession::persistentChannels(NetworkId id) const
 277 {
 278     return Core::persistentChannels(user(), id);
 279 }
 280
 281 QHash<QString, QByteArray> CoreSession::bufferCiphers(NetworkId id) const
 282 {
 283     return Core::bufferCiphers(user(), id);
 284 }
 285
 286 void CoreSession::setBufferCipher(NetworkId id, const QString& bufferName, const QByteArray& cipher) const
 287 {
 288     Core::setBufferCipher(user(), id, bufferName, cipher);
 289 }
 290
 291 // FIXME switch to BufferId
 292 void CoreSession::msgFromClient(BufferInfo bufinfo, QString msg)
 293 {
 294     CoreNetwork* net = network(bufinfo.networkId());
 295     if (net) {
 296         net->userInput(bufinfo, msg);
 297     }
 298     else {
 299         qWarning() << "Trying to send to unconnected network:" << msg;
 300     }
 301 }
 302
 303 // ALL messages coming pass through these functions before going to the GUI.
 304 // So this is the perfect place for storing the backlog and log stuff.
 305 void CoreSession::recvMessageFromServer(RawMessage msg)
 306 {
 307     // U+FDD0 and U+FDD1 are special characters for Qt's text engine, specifically they mark the boundaries of
 308     // text frames in a QTextDocument. This might lead to problems in widgets displaying QTextDocuments (such as
 309     // KDE's notifications), hence we remove those just to be safe.
 310     msg.text.remove(QChar(0xfdd0)).remove(QChar(0xfdd1));
 311
 312     // check for HardStrictness ignore
 313     CoreNetwork* currentNetwork = network(msg.networkId);
 314     QString networkName = currentNetwork ? currentNetwork->networkName() : QString("");
 315     if (_ignoreListManager.match(msg, networkName) == IgnoreListManager::HardStrictness)
 316         return;
 317
 318     if (currentNetwork && _highlightRuleManager.match(msg, currentNetwork->myNick(), currentNetwork->identityPtr()->nicks()))
 319         msg.flags |= Message::Flag::Highlight;
 320
 321     _messageQueue << std::move(msg);
 322     if (!_processMessages) {
 323         _processMessages = true;
 324         QCoreApplication::postEvent(this, new ProcessMessagesEvent());
 325     }
 326 }
 327
 328 void CoreSession::recvStatusMsgFromServer(QString msg)
 329 {
 330     auto* net = qobject_cast<CoreNetwork*>(sender());
 331     Q_ASSERT(net);
 332     emit displayStatusMsg(net->networkName(), std::move(msg));
 333 }
 334
 335 void CoreSession::processMessageEvent(MessageEvent* event)
 336 {
 337     recvMessageFromServer(RawMessage{
 338         event->timestamp(),
 339         event->networkId(),
 340         event->msgType(),
 341         event->bufferType(),
 342         event->target().isNull() ? "" : event->target(),
 343         event->text().isNull() ? "" : event->text(),
 344         event->sender().isNull() ? "" : event->sender(),
 345         event->msgFlags()
 346     });
 347 }
 348
 349 QList<BufferInfo> CoreSession::buffers() const
 350 {
 351     return Core::requestBuffers(user());
 352 }
 353
 354 void CoreSession::customEvent(QEvent* event)
 355 {
 356     if (event->type() != QEvent::User)
 357         return;
 358
 359     processMessages();
 360     event->accept();
 361 }
 362
 363 void CoreSession::processMessages()
 364 {
 365     if (_messageQueue.count() == 1) {
 366         const RawMessage& rawMsg = _messageQueue.first();
 367         bool createBuffer = !(rawMsg.flags & Message::Redirected);
 368         BufferInfo bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, rawMsg.bufferType, rawMsg.target, createBuffer);
 369         if (!bufferInfo.isValid()) {
 370             Q_ASSERT(!createBuffer);
 371             bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, BufferInfo::StatusBuffer, "");
 372         }
 373         Message msg(rawMsg.timestamp,
 374                     bufferInfo,
 375                     rawMsg.type,
 376                     rawMsg.text,
 377                     rawMsg.sender,
 378                     senderPrefixes(rawMsg.sender, bufferInfo),
 379                     realName(rawMsg.sender, rawMsg.networkId),
 380                     avatarUrl(rawMsg.sender, rawMsg.networkId),
 381                     rawMsg.flags);
 382         if (Core::storeMessage(msg))
 383             emit displayMsg(msg);
 384     }
 385     else {
 386         QHash<NetworkId, QHash<QString, BufferInfo>> bufferInfoCache;
 387         MessageList messages;
 388         QList<RawMessage> redirectedMessages;  // list of Messages which don't enforce a buffer creation
 389         BufferInfo bufferInfo;
 390         for (int i = 0; i < _messageQueue.count(); i++) {
 391             const RawMessage& rawMsg = _messageQueue.at(i);
 392             if (bufferInfoCache.contains(rawMsg.networkId) && bufferInfoCache[rawMsg.networkId].contains(rawMsg.target)) {
 393                 bufferInfo = bufferInfoCache[rawMsg.networkId][rawMsg.target];
 394             }
 395             else {
 396                 bool createBuffer = !(rawMsg.flags & Message::Redirected);
 397                 bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, rawMsg.bufferType, rawMsg.target, createBuffer);
 398                 if (!bufferInfo.isValid()) {
 399                     Q_ASSERT(!createBuffer);
 400                     redirectedMessages << rawMsg;
 401                     continue;
 402                 }
 403                 bufferInfoCache[rawMsg.networkId][rawMsg.target] = bufferInfo;
 404             }
 405             Message msg(rawMsg.timestamp,
 406                         bufferInfo,
 407                         rawMsg.type,
 408                         rawMsg.text,
 409                         rawMsg.sender,
 410                         senderPrefixes(rawMsg.sender, bufferInfo),
 411                         realName(rawMsg.sender, rawMsg.networkId),
 412                         avatarUrl(rawMsg.sender, rawMsg.networkId),
 413                         rawMsg.flags);
 414             messages << msg;
 415         }
 416
 417         // recheck if there exists a buffer to store a redirected message in
 418         for (int i = 0; i < redirectedMessages.count(); i++) {
 419             const RawMessage& rawMsg = redirectedMessages.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                 // no luck -> we store them in the StatusBuffer
 425                 bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, BufferInfo::StatusBuffer, "");
 426                 // add the StatusBuffer to the Cache in case there are more Messages for the original target
 427                 bufferInfoCache[rawMsg.networkId][rawMsg.target] = bufferInfo;
 428             }
 429             Message msg(rawMsg.timestamp,
 430                         bufferInfo,
 431                         rawMsg.type,
 432                         rawMsg.text,
 433                         rawMsg.sender,
 434                         senderPrefixes(rawMsg.sender, bufferInfo),
 435                         realName(rawMsg.sender, rawMsg.networkId),
 436                         avatarUrl(rawMsg.sender, rawMsg.networkId),
 437                         rawMsg.flags);
 438             messages << msg;
 439         }
 440
 441         if (Core::storeMessages(messages)) {
 442             // FIXME: extend protocol to a displayMessages(MessageList)
 443             for (int i = 0; i < messages.count(); i++) {
 444                 emit displayMsg(messages[i]);
 445             }
 446         }
 447     }
 448     _processMessages = false;
 449     _messageQueue.clear();
 450 }
 451
 452 QString CoreSession::senderPrefixes(const QString& sender, const BufferInfo& bufferInfo) const
 453 {
 454     CoreNetwork* currentNetwork = network(bufferInfo.networkId());
 455     if (!currentNetwork) {
 456         return {};
 457     }
 458
 459     if (bufferInfo.type() != BufferInfo::ChannelBuffer) {
 460         return {};
 461     }
 462
 463     IrcChannel* currentChannel = currentNetwork->ircChannel(bufferInfo.bufferName());
 464     if (!currentChannel) {
 465         return {};
 466     }
 467
 468     const QString modes = currentChannel->userModes(nickFromMask(sender).toLower());
 469     return currentNetwork->modesToPrefixes(modes);
 470 }
 471
 472 QString CoreSession::realName(const QString& sender, NetworkId networkId) const
 473 {
 474     CoreNetwork* currentNetwork = network(networkId);
 475     if (!currentNetwork) {
 476         return {};
 477     }
 478
 479     IrcUser* currentUser = currentNetwork->ircUser(nickFromMask(sender));
 480     if (!currentUser) {
 481         return {};
 482     }
 483
 484     return currentUser->realName();
 485 }
 486
 487 QString CoreSession::avatarUrl(const QString& sender, NetworkId networkId) const
 488 {
 489     Q_UNUSED(sender);
 490     Q_UNUSED(networkId);
 491     // Currently we do not have a way to retrieve this value yet.
 492     //
 493     // This likely will require implementing IRCv3's METADATA spec.
 494     // See https://ircv3.net/irc/
 495     // And https://blog.irccloud.com/avatars/
 496     return "";
 497 }
 498
 499 Protocol::SessionState CoreSession::sessionState() const
 500 {
 501     QVariantList bufferInfos;
 502     QVariantList networkIds;
 503     QVariantList identities;
 504
 505     for (const BufferInfo& id : buffers()) {
 506         bufferInfos << QVariant::fromValue(id);
 507     }
 508     for (const NetworkId& id : _networks.keys()) {
 509         networkIds << QVariant::fromValue(id);
 510     }
 511     for (const Identity* i : _identities.values()) {
 512         identities << QVariant::fromValue(*i);
 513     }
 514
 515     return Protocol::SessionState(identities, bufferInfos, networkIds);
 516 }
 517
 518 void CoreSession::initScriptEngine()
 519 {
 520     signalProxy()->attachSlot(SIGNAL(scriptRequest(QString)), this, &CoreSession::scriptRequest);
 521     signalProxy()->attachSignal(this, &CoreSession::scriptResult);
 522
 523     // FIXME
 524     // QScriptValue storage_ = scriptEngine->newQObject(storage);
 525     // scriptEngine->globalObject().setProperty("storage", storage_);
 526 }
 527
 528 void CoreSession::scriptRequest(QString script)
 529 {
 530     emit scriptResult(scriptEngine->evaluate(script).toString());
 531 }
 532
 533 /*** Identity Handling ***/
 534 void CoreSession::createIdentity(const Identity& identity, const QVariantMap& additional)
 535 {
 536 #ifndef HAVE_SSL
 537     Q_UNUSED(additional)
 538 #endif
 539
 540     CoreIdentity coreIdentity(identity);
 541 #ifdef HAVE_SSL
 542     if (additional.contains("KeyPem"))
 543         coreIdentity.setSslKey(additional["KeyPem"].toByteArray());
 544     if (additional.contains("CertPem"))
 545         coreIdentity.setSslCert(additional["CertPem"].toByteArray());
 546 #endif
 547     qDebug() << Q_FUNC_INFO;
 548     IdentityId id = Core::createIdentity(user(), coreIdentity);
 549     if (!id.isValid())
 550         return;
 551     else
 552         createIdentity(coreIdentity);
 553 }
 554
 555 const QString CoreSession::strictCompliantIdent(const CoreIdentity* identity)
 556 {
 557     if (_strictIdentEnabled) {
 558         // Strict mode enabled: only allow the user's Quassel username as an ident
 559         return Core::instance()->strictSysIdent(_user);
 560     }
 561     else {
 562         // Strict mode disabled: allow any identity specified
 563         return identity->ident();
 564     }
 565 }
 566
 567 void CoreSession::createIdentity(const CoreIdentity& identity)
 568 {
 569     auto* coreIdentity = new CoreIdentity(identity, this);
 570     _identities[identity.id()] = coreIdentity;
 571     // CoreIdentity has its own synchronize method since its "private" sslManager needs to be synced as well
 572     coreIdentity->synchronize(signalProxy());
 573     connect(coreIdentity, &SyncableObject::updated, this, &CoreSession::updateIdentityBySender);
 574     emit identityCreated(*coreIdentity);
 575 }
 576
 577 void CoreSession::updateIdentityBySender()
 578 {
 579     auto* identity = qobject_cast<CoreIdentity*>(sender());
 580     if (!identity)
 581         return;
 582     Core::updateIdentity(user(), *identity);
 583 }
 584
 585 void CoreSession::removeIdentity(IdentityId id)
 586 {
 587     CoreIdentity* identity = _identities.take(id);
 588     if (identity) {
 589         emit identityRemoved(id);
 590         Core::removeIdentity(user(), id);
 591         identity->deleteLater();
 592     }
 593 }
 594
 595 /*** Network Handling ***/
 596
 597 void CoreSession::createNetwork(const NetworkInfo& info_, const QStringList& persistentChans)
 598 {
 599     NetworkInfo info = info_;
 600     int id;
 601
 602     if (!info.networkId.isValid())
 603         Core::createNetwork(user(), info);
 604
 605     if (!info.networkId.isValid()) {
 606         qWarning() << qPrintable(
 607             tr("CoreSession::createNetwork(): Got invalid networkId from Core when trying to create network %1!").arg(info.networkName));
 608         return;
 609     }
 610
 611     id = info.networkId.toInt();
 612     if (!_networks.contains(id)) {
 613         // create persistent chans
 614         QRegExp rx(R"(\s*(\S+)(?:\s*(\S+))?\s*)");
 615         for (const QString& channel : persistentChans) {
 616             if (!rx.exactMatch(channel)) {
 617                 qWarning() << QString("Invalid persistent channel declaration: %1").arg(channel);
 618                 continue;
 619             }
 620             Core::bufferInfo(user(), info.networkId, BufferInfo::ChannelBuffer, rx.cap(1), true);
 621             Core::setChannelPersistent(user(), info.networkId, rx.cap(1), true);
 622             if (!rx.cap(2).isEmpty())
 623                 Core::setPersistentChannelKey(user(), info.networkId, rx.cap(1), rx.cap(2));
 624         }
 625
 626         CoreNetwork* net = new CoreNetwork(id, this);
 627         connect(net, &CoreNetwork::displayMsg, this, &CoreSession::recvMessageFromServer);
 628         connect(net, &CoreNetwork::displayStatusMsg, this, &CoreSession::recvStatusMsgFromServer);
 629         connect(net, &CoreNetwork::disconnected, this, &CoreSession::networkDisconnected);
 630
 631         net->setNetworkInfo(info);
 632         net->setProxy(signalProxy());
 633         _networks[id] = net;
 634         signalProxy()->synchronize(net);
 635         emit networkCreated(id);
 636     }
 637     else {
 638         qWarning() << qPrintable(tr("CoreSession::createNetwork(): Trying to create a network that already exists, updating instead!"));
 639         _networks[info.networkId]->requestSetNetworkInfo(info);
 640     }
 641 }
 642
 643 void CoreSession::removeNetwork(NetworkId id)
 644 {
 645     // Make sure the network is disconnected!
 646     CoreNetwork* net = network(id);
 647     if (!net)
 648         return;
 649
 650     if (net->connectionState() != Network::Disconnected) {
 651         // make sure we no longer receive data from the tcp buffer
 652         disconnect(net, &CoreNetwork::displayMsg, this, nullptr);
 653         disconnect(net, &CoreNetwork::displayStatusMsg, this, nullptr);
 654         connect(net, &CoreNetwork::disconnected, this, &CoreSession::destroyNetwork);
 655         net->disconnectFromIrc();
 656     }
 657     else {
 658         destroyNetwork(id);
 659     }
 660 }
 661
 662 void CoreSession::destroyNetwork(NetworkId id)
 663 {
 664     QList<BufferId> removedBuffers = Core::requestBufferIdsForNetwork(user(), id);
 665     Network* net = _networks.take(id);
 666     if (net && Core::removeNetwork(user(), id)) {
 667         // make sure that all unprocessed RawMessages from this network are removed
 668         QList<RawMessage>::iterator messageIter = _messageQueue.begin();
 669         while (messageIter != _messageQueue.end()) {
 670             if (messageIter->networkId == id) {
 671                 messageIter = _messageQueue.erase(messageIter);
 672             }
 673             else {
 674                 ++messageIter;
 675             }
 676         }
 677         // remove buffers from syncer
 678         for (BufferId bufferId : removedBuffers) {
 679             _bufferSyncer->removeBuffer(bufferId);
 680         }
 681         emit networkRemoved(id);
 682         net->deleteLater();
 683     }
 684 }
 685
 686 void CoreSession::renameBuffer(const NetworkId& networkId, const QString& newName, const QString& oldName)
 687 {
 688     BufferInfo bufferInfo = Core::bufferInfo(user(), networkId, BufferInfo::QueryBuffer, oldName, false);
 689     if (bufferInfo.isValid()) {
 690         _bufferSyncer->renameBuffer(bufferInfo.bufferId(), newName);
 691     }
 692 }
 693
 694 void CoreSession::clientsConnected()
 695 {
 696     QHash<NetworkId, CoreNetwork*>::iterator netIter = _networks.begin();
 697     Identity* identity = nullptr;
 698     CoreNetwork* net = nullptr;
 699     IrcUser* me = nullptr;
 700     while (netIter != _networks.end()) {
 701         net = *netIter;
 702         ++netIter;
 703
 704         if (!net->isConnected())
 705             continue;
 706         identity = net->identityPtr();
 707         if (!identity)
 708             continue;
 709         me = net->me();
 710         if (!me)
 711             continue;
 712
 713         if (identity->detachAwayEnabled() && me->isAway()) {
 714             net->userInputHandler()->handleAway(BufferInfo(), QString());
 715         }
 716     }
 717 }
 718
 719 void CoreSession::clientsDisconnected()
 720 {
 721     QHash<NetworkId, CoreNetwork*>::iterator netIter = _networks.begin();
 722     Identity* identity = nullptr;
 723     CoreNetwork* net = nullptr;
 724     IrcUser* me = nullptr;
 725     QString awayReason;
 726     while (netIter != _networks.end()) {
 727         net = *netIter;
 728         ++netIter;
 729
 730         if (!net->isConnected())
 731             continue;
 732
 733         identity = net->identityPtr();
 734         if (!identity)
 735             continue;
 736         me = net->me();
 737         if (!me)
 738             continue;
 739
 740         if (identity->detachAwayEnabled() && !me->isAway()) {
 741             if (!identity->detachAwayReason().isEmpty())
 742                 awayReason = identity->detachAwayReason();
 743             net->setAutoAwayActive(true);
 744             // Allow handleAway() to format the current date/time in the string.
 745             net->userInputHandler()->handleAway(BufferInfo(), awayReason);
 746         }
 747     }
 748 }
 749
 750 void CoreSession::globalAway(const QString& msg, const bool skipFormatting)
 751 {
 752     QHash<NetworkId, CoreNetwork*>::iterator netIter = _networks.begin();
 753     CoreNetwork* net = nullptr;
 754     while (netIter != _networks.end()) {
 755         net = *netIter;
 756         ++netIter;
 757
 758         if (!net->isConnected())
 759             continue;
 760
 761         net->userInputHandler()->issueAway(msg, false /* no force away */, skipFormatting);
 762     }
 763 }
 764
 765 void CoreSession::changePassword(PeerPtr peer, const QString& userName, const QString& oldPassword, const QString& newPassword)
 766 {
 767     Q_UNUSED(peer);
 768
 769     bool success = false;
 770     UserId uid = Core::validateUser(userName, oldPassword);
 771     if (uid.isValid() && uid == user())
 772         success = Core::changeUserPassword(uid, newPassword);
 773
 774     signalProxy()->restrictTargetPeers(signalProxy()->sourcePeer(), [&] { emit passwordChanged(nullptr, success); });
 775 }
 776
 777 void CoreSession::kickClient(int peerId)
 778 {
 779     auto peer = signalProxy()->peerById(peerId);
 780     if (peer == nullptr) {
 781         qWarning() << "Invalid peer Id: " << peerId;
 782         return;
 783     }
 784     signalProxy()->restrictTargetPeers(peer, [&] { emit disconnectFromCore(); });
 785 }