1 /***************************************************************************
2 * Copyright (C) 2005-2010 by the Quassel Project *
3 * devel@quassel-irc.org *
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. *
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. *
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 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
21 #include "ircparser.h"
23 #include "corenetwork.h"
24 #include "eventmanager.h"
26 #include "messageevent.h"
27 #include "networkevent.h"
33 IrcParser::IrcParser(CoreSession *session) :
37 connect(this, SIGNAL(newEvent(Event *)), coreSession()->eventManager(), SLOT(postEvent(Event *)));
40 bool IrcParser::checkParamCount(const QString &cmd, const QList<QByteArray> ¶ms, int minParams) {
41 if(params.count() < minParams) {
42 qWarning() << "Expected" << minParams << "params for IRC command" << cmd << ", got:" << params;
48 QByteArray IrcParser::decrypt(Network *network, const QString &bufferName, const QByteArray &message, bool isTopic) {
53 if(!Cipher::neededFeaturesAvailable())
56 Cipher *cipher = qobject_cast<CoreNetwork *>(network)->cipher(bufferName);
60 return isTopic? cipher->decryptTopic(message) : cipher->decrypt(message);
69 /* parse the raw server string and generate an appropriate event */
70 /* used to be handleServerMsg() */
71 void IrcParser::processNetworkIncoming(NetworkDataEvent *e) {
72 CoreNetwork *net = qobject_cast<CoreNetwork *>(e->network());
74 qWarning() << "Received network event without valid network pointer!";
78 // note that the IRC server is still alive
79 net->resetPingTimeout();
81 QByteArray msg = e->data();
83 qWarning() << "Received empty string from server!";
87 // Now we split the raw message into its various parts...
92 // First, check for a trailing parameter introduced by " :", since this might screw up splitting the msg
93 // NOTE: This assumes that this is true in raw encoding, but well, hopefully there are no servers running in japanese on protocol level...
94 int idx = msg.indexOf(" :");
96 if(msg.length() > idx + 2)
97 trailing = msg.mid(idx + 2);
100 // OK, now it is safe to split...
101 QList<QByteArray> params = msg.split(' ');
103 // This could still contain empty elements due to (faulty?) ircds sending multiple spaces in a row
104 // Also, QByteArray is not nearly as convenient to work with as QString for such things :)
105 QList<QByteArray>::iterator iter = params.begin();
106 while(iter != params.end()) {
108 iter = params.erase(iter);
113 if(!trailing.isEmpty())
115 if(params.count() < 1) {
116 qWarning() << "Received invalid string from server!";
120 QString foo = net->serverDecode(params.takeFirst());
122 // a colon as the first chars indicates the existence of a prefix
126 if(params.count() < 1) {
127 qWarning() << "Received invalid string from server!";
130 foo = net->serverDecode(params.takeFirst());
133 // next string without a whitespace is the command
136 QList<Event *> events;
137 EventManager::EventType type = EventManager::Invalid;
139 uint num = cmd.toUInt();
142 if(params.count() == 0) {
143 qWarning() << "Message received from server violates RFC and is ignored!" << msg;
146 // numeric replies have the target as first param (RFC 2812 - 2.4). this is usually our own nick. Remove this!
147 target = net->serverDecode(params.takeFirst());
148 type = EventManager::IrcEventNumeric;
150 // any other irc command
151 QString typeName = QLatin1String("IrcEvent") + cmd.at(0).toUpper() + cmd.mid(1).toLower();
152 type = eventManager()->eventTypeByName(typeName);
153 if(type == EventManager::Invalid) {
154 type = eventManager()->eventTypeByName("IrcEventUnknown");
155 Q_ASSERT(type != EventManager::Invalid);
160 // Almost always, all params are server-encoded. There's a few exceptions, let's catch them here!
161 // Possibly not the best option, we might want something more generic? Maybe yet another layer of
162 // unencoded events with event handlers for the exceptions...
163 // Also, PRIVMSG and NOTICE need some special handling, we put this in here as well, so we get out
164 // nice pre-parsed events that the CTCP handler can consume.
166 QStringList decParams;
167 bool defaultHandling = true; // whether to automatically copy the remaining params and send the event
171 case EventManager::IrcEventPrivmsg:
172 defaultHandling = false; // this might create a list of events
174 if(checkParamCount(cmd, params, 1)) {
175 QString senderNick = nickFromMask(prefix);
176 QByteArray msg = params.count() < 2 ? QByteArray() : params.at(1);
178 QStringList targets = net->serverDecode(params.at(0)).split(',', QString::SkipEmptyParts);
179 QStringList::const_iterator targetIter;
180 for(targetIter = targets.constBegin(); targetIter != targets.constEnd(); ++targetIter) {
181 QString target = net->isChannelName(*targetIter) ? *targetIter : senderNick;
183 msg = decrypt(net, target, msg);
185 events << new IrcEventRawMessage(EventManager::IrcEventRawPrivmsg, net, msg, prefix, target, e->timestamp());
190 case EventManager::IrcEventNotice:
191 defaultHandling = false;
193 if(checkParamCount(cmd, params, 2)) {
194 QStringList targets = net->serverDecode(params.at(0)).split(',', QString::SkipEmptyParts);
195 QStringList::const_iterator targetIter;
196 for(targetIter = targets.constBegin(); targetIter != targets.constEnd(); ++targetIter) {
197 QString target = *targetIter;
199 // special treatment for welcome messages like:
200 // :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
201 if(!net->isChannelName(target)) {
202 QString decMsg = net->serverDecode(params.at(1));
203 QRegExp welcomeRegExp("^\\[([^\\]]+)\\] ");
204 if(welcomeRegExp.indexIn(decMsg) != -1) {
205 QString channelname = welcomeRegExp.cap(1);
206 decMsg = decMsg.mid(welcomeRegExp.matchedLength());
207 CoreIrcChannel *chan = static_cast<CoreIrcChannel *>(net->ircChannel(channelname)); // we only have CoreIrcChannels in the core, so this cast is safe
208 if(chan && !chan->receivedWelcomeMsg()) {
209 chan->setReceivedWelcomeMsg();
210 events << new MessageEvent(Message::Notice, net, decMsg, prefix, channelname, Message::None, e->timestamp());
216 if(prefix.isEmpty() || target == "AUTH") {
219 if(!target.isEmpty() && net->prefixes().contains(target.at(0)))
220 target = target.mid(1);
221 if(!net->isChannelName(target))
222 target = nickFromMask(prefix);
224 events << new IrcEventRawMessage(EventManager::IrcEventRawNotice, net, params[1], prefix, target, e->timestamp());
229 // the following events need only special casing for param decoding
230 case EventManager::IrcEventKick:
231 if(params.count() >= 3) { // we have a reason
232 decParams << net->serverDecode(params.at(0)) << net->serverDecode(params.at(1));
233 decParams << net->channelDecode(decParams.first(), params.at(2)); // kick reason
237 case EventManager::IrcEventPart:
238 if(params.count() >= 2) {
239 QString channel = net->serverDecode(params.at(0));
240 decParams << channel;
241 decParams << net->userDecode(nickFromMask(prefix), params.at(1));
245 case EventManager::IrcEventQuit:
246 if(params.count() >= 1) {
247 decParams << net->userDecode(nickFromMask(prefix), params.at(0));
251 case EventManager::IrcEventTopic:
252 if(params.count() >= 1) {
253 QString channel = net->serverDecode(params.at(0));
254 decParams << channel;
255 decParams << (params.count() >= 2? net->channelDecode(channel, decrypt(net, channel, params.at(1), true)) : QString());
259 case EventManager::IrcEventNumeric:
261 case 301: /* RPL_AWAY */
262 if(params.count() >= 2) {
263 QString nick = net->serverDecode(params.at(0));
265 decParams << net->userDecode(nick, params.at(1));
269 case 332: /* RPL_TOPIC */
270 if(params.count() >= 2) {
271 QString channel = net->serverDecode(params.at(0));
272 decParams << channel;
273 decParams << net->channelDecode(channel, decrypt(net, channel, params.at(1), true));
277 case 333: /* Topic set by... */
278 if(params.count() >= 2) {
279 QString channel = net->serverDecode(params.at(0));
280 decParams << channel << net->serverDecode(params.at(1));
281 decParams << net->channelDecode(channel, params.at(2));
290 if(defaultHandling && type != EventManager::Invalid) {
291 for(int i = decParams.count(); i < params.count(); i++)
292 decParams << net->serverDecode(params.at(i));
295 if(type == EventManager::IrcEventNumeric)
296 event = new IrcEventNumeric(num, net, prefix, target);
298 event = new IrcEvent(type, net, prefix);
299 event->setParams(decParams);
300 event->setTimestamp(e->timestamp());
304 foreach(Event *event, events) {
305 emit newEvent(event);