#include "ircparser.h"
-#include "coresession.h"
+#include "corenetwork.h"
+#include "eventmanager.h"
+#include "ircevent.h"
+#include "messageevent.h"
#include "networkevent.h"
+#ifdef HAVE_QCA2
+# include "cipher.h"
+#endif
+
IrcParser::IrcParser(CoreSession *session) :
QObject(session),
_coreSession(session)
}
-void IrcParser::processNetworkIncoming(Event *event) {
- NetworkDataEvent *e = static_cast<NetworkDataEvent *>(event);
+bool IrcParser::checkParamCount(const QString &cmd, const QList<QByteArray> ¶ms, int minParams) {
+ if(params.count() < minParams) {
+ qWarning() << "Expected" << minParams << "params for IRC command" << cmd << ", got:" << params;
+ return false;
+ }
+ return true;
+}
+
+QByteArray IrcParser::decrypt(Network *network, const QString &bufferName, const QByteArray &message, bool isTopic) {
+#ifdef HAVE_QCA2
+ if(message.isEmpty())
+ return message;
+
+ Cipher *cipher = qobject_cast<CoreNetwork *>(network)->cipher(bufferName);
+ if(!cipher)
+ return message;
+
+ return isTopic? cipher->decryptTopic(message) : cipher->decrypt(message);
+#else
+ return message;
+#endif
+}
+
+/* parse the raw server string and generate an appropriate event */
+/* used to be handleServerMsg() */
+void IrcParser::processNetworkIncoming(NetworkDataEvent *e) {
+ CoreNetwork *net = qobject_cast<CoreNetwork *>(e->network());
+ if(!net) {
+ qWarning() << "Received network event without valid network pointer!";
+ return;
+ }
+
+ // note that the IRC server is still alive
+ net->resetPingTimeout();
+
+ QByteArray msg = e->data();
+ if(msg.isEmpty()) {
+ qWarning() << "Received empty string from server!";
+ return;
+ }
+
+ // Now we split the raw message into its various parts...
+ QString prefix;
+ QByteArray trailing;
+ QString cmd, target;
+
+ // First, check for a trailing parameter introduced by " :", since this might screw up splitting the msg
+ // NOTE: This assumes that this is true in raw encoding, but well, hopefully there are no servers running in japanese on protocol level...
+ int idx = msg.indexOf(" :");
+ if(idx >= 0) {
+ if(msg.length() > idx + 2)
+ trailing = msg.mid(idx + 2);
+ msg = msg.left(idx);
+ }
+ // OK, now it is safe to split...
+ QList<QByteArray> params = msg.split(' ');
+
+ // This could still contain empty elements due to (faulty?) ircds sending multiple spaces in a row
+ // Also, QByteArray is not nearly as convenient to work with as QString for such things :)
+ QList<QByteArray>::iterator iter = params.begin();
+ while(iter != params.end()) {
+ if(iter->isEmpty())
+ iter = params.erase(iter);
+ else
+ ++iter;
+ }
+
+ if(!trailing.isEmpty())
+ params << trailing;
+ if(params.count() < 1) {
+ qWarning() << "Received invalid string from server!";
+ return;
+ }
+
+ QString foo = net->serverDecode(params.takeFirst());
+
+ // a colon as the first chars indicates the existence of a prefix
+ if(foo[0] == ':') {
+ foo.remove(0, 1);
+ prefix = foo;
+ if(params.count() < 1) {
+ qWarning() << "Received invalid string from server!";
+ return;
+ }
+ foo = net->serverDecode(params.takeFirst());
+ }
+
+ // next string without a whitespace is the command
+ cmd = foo.trimmed();
+
+ QList<Event *> events;
+ EventManager::EventType type = EventManager::Invalid;
+
+ // numeric replies have the target as first param (RFC 2812 - 2.4). this is usually our own nick. Remove this!
+ uint num = cmd.toUInt();
+ if(num > 0) {
+ if(params.count() == 0) {
+ qWarning() << "Message received from server violates RFC and is ignored!" << msg;
+ return;
+ }
+ target = net->serverDecode(params.takeFirst());
+ type = EventManager::IrcEventNumeric;
+ } else {
+ QString typeName = QLatin1String("IrcEvent") + cmd.at(0).toUpper() + cmd.mid(1).toLower();
+ type = eventManager()->eventTypeByName(typeName);
+ if(type == EventManager::Invalid) {
+ type = eventManager()->eventTypeByName("IrcEventUnknown");
+ Q_ASSERT(type != EventManager::Invalid);
+ }
+ target = QString();
+ }
+
+ // Almost always, all params are server-encoded. There's a few exceptions, let's catch them here!
+ // Possibly not the best option, we might want something more generic? Maybe yet another layer of
+ // unencoded events with event handlers for the exceptions...
+ // Also, PRIVMSG and NOTICE need some special handling, we put this in here as well, so we get out
+ // nice pre-parsed events that the CTCP handler can consume.
+
+ QStringList decParams;
+ bool defaultHandling = true; // whether to automatically copy the remaining params and send the event
+
+ switch(type) {
+
+ case EventManager::IrcEventPrivmsg:
+ defaultHandling = false; // this might create a list of events
+
+ if(checkParamCount(cmd, params, 1)) {
+ QString senderNick = nickFromMask(prefix);
+ QByteArray msg = params.count() < 2 ? QByteArray() : params.at(1);
+
+ QStringList targets = net->serverDecode(params.at(0)).split(',', QString::SkipEmptyParts);
+ QStringList::const_iterator targetIter;
+ for(targetIter = targets.constBegin(); targetIter != targets.constEnd(); ++targetIter) {
+ QString target = net->isChannelName(*targetIter) ? *targetIter : senderNick;
+
+ msg = decrypt(net, target, msg);
+
+ events << new IrcEventRawMessage(EventManager::IrcEventRawPrivmsg, net, prefix, target, msg);
+ //events << new MessageEvent(Message::Plain, net, net->channelDecode(target, msg), target, prefix);
+ }
+ }
+ break;
+
+ case EventManager::IrcEventNotice:
+ defaultHandling = false;
+
+ if(checkParamCount(cmd, params, 2)) {
+ QStringList targets = net->serverDecode(params.at(0)).split(',', QString::SkipEmptyParts);
+ QStringList::const_iterator targetIter;
+ for(targetIter = targets.constBegin(); targetIter != targets.constEnd(); ++targetIter) {
+ QString target = *targetIter;
+
+ // special treatment for welcome messages like:
+ // :ChanServ!ChanServ@services. NOTICE egst :[#apache] Welcome, this is #apache. Please read the in-channel topic message. This channel is being logged by IRSeekBot. If you have any question please see http://blog.freenode.net/?p=68
+ if(!net->isChannelName(target)) {
+ QString decMsg = net->serverDecode(params.at(1));
+ QRegExp welcomeRegExp("^\\[([^\\]]+)\\] ");
+ if(welcomeRegExp.indexIn(decMsg) != -1) {
+ QString channelname = welcomeRegExp.cap(1);
+ decMsg = decMsg.mid(welcomeRegExp.matchedLength());
+ CoreIrcChannel *chan = static_cast<CoreIrcChannel *>(net->ircChannel(channelname)); // we only have CoreIrcChannels in the core, so this cast is safe
+ if(chan && !chan->receivedWelcomeMsg()) {
+ chan->setReceivedWelcomeMsg();
+ events << new MessageEvent(Message::Notice, net, decMsg, channelname, prefix);
+ continue;
+ }
+ }
+ }
+
+ if(prefix.isEmpty() || target == "AUTH") {
+ target = QString();
+ } else {
+ if(!target.isEmpty() && net->prefixes().contains(target.at(0)))
+ target = target.mid(1);
+ if(!net->isChannelName(target))
+ target = nickFromMask(prefix);
+ }
+ events << new IrcEventRawMessage(EventManager::IrcEventRawNotice, net, prefix, target, msg);
+ }
+ }
+ break;
+
+ // the following events need only special casing for param decoding
+ case EventManager::IrcEventKick:
+ if(params.count() >= 3) { // we have a reason
+ decParams << net->serverDecode(params.at(0)) << net->serverDecode(params.at(1));
+ decParams << net->channelDecode(decParams.first(), params.at(2)); // kick reason
+ }
+ break;
+
+ case EventManager::IrcEventPart:
+ if(params.count() >= 2) {
+ QString channel = net->serverDecode(params.at(0));
+ decParams << channel;
+ decParams << net->userDecode(nickFromMask(prefix), params.at(1));
+ }
+ break;
+
+ case EventManager::IrcEventQuit:
+ if(params.count() >= 1) {
+ decParams << net->userDecode(nickFromMask(prefix), params.at(0));
+ }
+ break;
+
+ case EventManager::IrcEventTopic:
+ if(params.count() >= 1) {
+ QString channel = net->serverDecode(params.at(0));
+ decParams << channel;
+ decParams << (params.count() >= 2? net->channelDecode(channel, decrypt(net, channel, params.at(1), true)) : QString());
+ }
+ break;
+
+ case EventManager::IrcEventNumeric:
+ switch(num) {
+ case 301: /* RPL_AWAY */
+ if(params.count() >= 2) {
+ QString nick = net->serverDecode(params.at(0));
+ decParams << nick;
+ decParams << net->userDecode(nick, params.at(1));
+ }
+ break;
+
+ case 332: /* RPL_TOPIC */
+ if(params.count() >= 2) {
+ QString channel = net->serverDecode(params.at(0));
+ decParams << channel;
+ decParams << net->channelDecode(channel, decrypt(net, channel, params.at(1), true));
+ }
+ break;
+
+ case 333: /* Topic set by... */
+ if(params.count() >= 2) {
+ QString channel = net->serverDecode(params.at(0));
+ decParams << channel << net->serverDecode(params.at(1));
+ decParams << net->channelDecode(channel, params.at(2));
+ }
+ break;
+ }
+
+ default:
+ break;
+ }
+
+ if(defaultHandling && type != EventManager::Invalid) {
+ for(int i = decParams.count(); i < params.count(); i++)
+ decParams << net->serverDecode(params.at(i));
+
+ IrcEvent *event;
+ if(type == EventManager::IrcEventNumeric)
+ event = new IrcEventNumeric(num, net, prefix, target);
+ else
+ event = new IrcEvent(type, net, prefix);
+ event->setParams(decParams);
+ events << event;
+ }
- qDebug() << "received" << e->data();
+ foreach(Event *event, events) {
+ coreSession()->eventManager()->sendEvent(event);
+ }
}
projects / quassel.git / blobdiff