1 /* IRCParser.c - NeonServ v5.2
2 * Copyright (C) 2011 Philipp Kreil (pk910)
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #include "IRCParser.h"
22 #include "IRCEvents.h"
23 #include "ClientSocket.h"
24 #include "WHOHandler.h"
31 struct irc_cmd *irc_commands = NULL;
32 static struct UserNode *registering_users = NULL;
33 int statistics_privmsg = 0;
34 int statistics_network_users = 0;
35 int statistics_network_channels = 0;
37 static void parse_line(struct ClientSocket *client, char *line);
38 static void register_irc_function(char *command, irc_cmd_t *func);
39 static void parse_raw(struct ClientSocket *client, char *from, char *cmd, char **argv, int argc);
41 int parse_lines(struct ClientSocket *client, char *lines, int len) {
44 for(i = 0; i < len; i++) {
45 if(lines[i] == '\r') //just zero it out :D
47 if(lines[i] == '\n') {
49 parse_line(client, line);
57 static void parse_line(struct ClientSocket *client, char *line) {
59 char *argv[MAXNUMPARAMS];
60 printf("[recv %lu] %s\n", (unsigned long) strlen(line), line);
70 //the rest is a single parameter
71 argv[argc++] = line + 1;
75 if (argc >= MAXNUMPARAMS)
77 while (*line != ' ' && *line)
81 parse_raw(client, argv[0], argv[1], argv+2, argc-2);
85 static void register_irc_function(char *command, irc_cmd_t *func) {
86 struct irc_cmd *irc_cmd = malloc(sizeof(*irc_cmd));
89 perror("malloc() failed");
92 irc_cmd->cmd = command;
94 irc_cmd->next = irc_commands;
95 irc_commands = irc_cmd;
98 static void parse_raw(struct ClientSocket *client, char *from, char *cmd, char **argv, int argc) {
99 struct irc_cmd *irc_cmd;
101 for(irc_cmd = irc_commands; irc_cmd; irc_cmd = irc_cmd->next) {
102 if(!stricmp(irc_cmd->cmd, cmd)) {
103 ret = irc_cmd->func(client, from, argv, argc);
108 event_raw(client, from, cmd, argv, argc);
110 fprintf(stderr,"PARSE ERROR: %s\n", cmd);
114 static USERLIST_CALLBACK(got_channel_userlist) {
115 struct ChanUser *chanuser = data;
116 event_join(chanuser);
119 static IRC_CMD(raw_002) { //fixed: ZNC fakes a 001 raw even if we're not connected!
120 struct UserNode *user = getUserByNick(argv[0]);
122 user = addUser(argv[0]);
124 client->user->flags |= USERFLAG_ISBOT;
125 client->flags |= SOCKET_FLAG_READY;
126 event_bot_ready(client);
130 static int is_firstBotSeeUser(struct ClientSocket *client, struct UserNode *user) {
131 struct ClientSocket *bot, *pref_bot = NULL, *unpref_bot = NULL;
132 struct ChanUser *chanuser;
134 for(bot = getBots(SOCKET_FLAG_READY, NULL); bot; bot = getBots(SOCKET_FLAG_READY, bot)) {
136 for(chanuser = getUserChannels(bot->user, NULL); chanuser; chanuser = getUserChannels(bot->user, chanuser)) {
137 if(isUserOnChan(user, chanuser->chan)) {
143 if(bot->flags & SOCKET_FLAG_PREFERRED) {
149 bot = (pref_bot ? pref_bot : unpref_bot);
156 static int is_onlyBotSeeUser(struct ClientSocket *client, struct UserNode *user) {
157 struct ClientSocket *bot;
158 struct ChanUser *chanuser;
159 for(bot = getBots(SOCKET_FLAG_READY, NULL); bot; bot = getBots(SOCKET_FLAG_READY, bot)) {
160 if(bot == client) continue;
161 for(chanuser = getUserChannels(bot->user, NULL); chanuser; chanuser = getUserChannels(bot->user, chanuser)) {
162 if(isUserOnChan(user, chanuser->chan)) {
170 static IRC_CMD(raw_join) {
171 if(from == NULL || argc < 1) return 0;
172 struct UserNode *user = getUserByMask(from);
173 struct ChanNode *chan = getChanByName(argv[0]);
174 if(!chan && (!user || !(user->flags & USERFLAG_ISBOT))) return 0;
175 if(chan && (((!user || !isBot(user)) && chan->chanbot != client->user) || ((user && isBot(user)) && client->user != user))) return 1; //we ignore it - but it's not a parse error
176 //let Bots always add themselves! (maybe they join invisible)
178 user = addUserMask(from);
180 struct UserNode *registering, *last_registering = NULL, *next_registering;
181 int noEvent = 0, wasRegistering = 0;
182 for(registering = registering_users; registering; registering = next_registering) {
183 next_registering = registering->next;
184 if(!strcmp(registering->nick, user->nick)) {
185 noEvent = event_registered(registering, user);
188 last_registering->next = registering->next;
190 registering_users = registering->next;
191 delUser(registering, 1);
192 } else if(time(0) - registering->created > 2) {
194 last_registering->next = registering->next;
196 registering_users = registering->next;
197 delUser(registering, 1);
199 last_registering = registering;
202 chan = addChannel(argv[0]);
203 //request member list
204 chan->chanbot = user;
205 struct ChanUser *chanuser = addChanUser(chan, user); //it must be a bot
206 get_userlist_with_invisible(chan, got_channel_userlist, chanuser);
207 putsock(client, "MODE %s", chan->name);
208 putsock(client, "MODE %s +b", chan->name);
209 } else if(!isUserOnChan(user, chan) && ((chan->flags & CHANFLAG_RECEIVED_USERLIST) || isBot(user))) {
210 struct ChanUser *chanuser = addChanUser(chan, user);
211 if(isModeSet(chan->modes, 'D'))
212 chanuser->flags |= CHANUSERFLAG_INVISIBLE;
215 user->flags |= USERFLAG_WAS_REGISTRING;
216 event_join(chanuser);
218 user->flags &= ~USERFLAG_WAS_REGISTRING;
220 if(!(user->flags & USERFLAG_ISBOT) && (chan->flags & CHANFLAG_REJOINING)) {
221 //ABORT REJOIN (security break)
222 struct ClientSocket **clients = chan->rejoin_array;
224 putsock(*clients, "JOIN %s", chan->name);
227 free(chan->rejoin_array);
228 chan->flags &= ~CHANFLAG_REJOINING;
230 } else if(chan->usercount == 1 && isUserOnChan(user, chan)) {
232 struct ChanUser *chanuser = getChanUser(user, chan);
233 chanuser->flags &= ~CHANUSERFLAG_VOICED;
234 chanuser->flags |= CHANUSERFLAG_OPPED;
239 static void check_full_rejoin(struct ChanNode *chan) {
240 struct ChanUser *chanuser;
243 for(chanuser = getChannelUsers(chan, NULL); chanuser; chanuser = getChannelUsers(chan, chanuser)) {
244 if((chanuser->flags & CHANUSERFLAG_OPPED) || !(chanuser->user->flags & USERFLAG_ISBOT)) {
248 if((chanuser->user->flags & USERFLAG_ISBOT))
252 struct ClientSocket **clients = calloc(botcount, sizeof(*clients));
253 struct ClientSocket *bot, *chanbot;
255 for(bot = getBots(SOCKET_FLAG_READY, NULL); bot; bot = getBots(SOCKET_FLAG_READY, bot)) {
256 if(bot->user != chan->chanbot && isUserOnChan(bot->user, chan)) {
258 putsock(bot, "PART %s :rejoining", chan->name);
259 } else if(bot->user == chan->chanbot)
262 chan->flags |= CHANFLAG_REJOINING;
263 chan->rejoin_array = clients;
266 putsock(chanbot, "PART %s :magic hop", chan->name);
267 putsock(chanbot, "JOIN %s", chan->name);
272 static IRC_CMD(raw_part) {
273 if(from == NULL || argc < 1) return 0;
274 struct UserNode *user = getUserByMask(from);
275 if(user == NULL) return 0;
276 struct ChanNode *chan = getChanByName(argv[0]);
277 if(chan == NULL) return 0;
278 if((!isBot(user) && chan->chanbot != client->user) || (isBot(user) && client->user != user)) return 1; //we ignore it - but it's not a parse error
279 int keep_channel = 1;
280 if(chan->chanbot == user && (chan->flags & CHANFLAG_REJOINING)) {
281 struct ClientSocket **clients = chan->rejoin_array;
283 putsock(*clients, "JOIN %s", chan->name);
286 free(chan->rejoin_array);
287 chan->flags &= ~CHANFLAG_REJOINING;
289 } else if(isUserOnChan(user, chan) && (chan->flags & CHANFLAG_RECEIVED_USERLIST)) {
290 struct ChanUser *chanuser = getChanUser(user, chan);
291 delChanUser(chanuser, 0); //we need to free the chanuser manually!
292 event_part(chanuser, (argc > 1 ? argv[1] : NULL));
293 freeChanUser(chanuser);
294 if(chan->chanbot == user) {
295 //check if theres another bot in the channel - otherwise free it
296 keep_channel = checkChannelVisibility(chan);
299 if(user->channel == NULL && !(user->flags & USERFLAG_ISBOT)) {
303 if(keep_channel && (chan->flags & CHANFLAG_RECEIVED_USERLIST) && !(chan->flags & CHANFLAG_REJOINING)) {
304 check_full_rejoin(chan);
306 else if(keep_channel && (chan->flags & CHANFLAG_REJOINING) && chan->usercount == 1) {
307 //bot is alone... rejoin!
308 putsock(client, "PART %s :magic hop", chan->name);
309 putsock(client, "JOIN %s", chan->name);
314 static IRC_CMD(raw_quit) {
315 if(from == NULL || argc < 1) return 0;
316 struct UserNode *user = getUserByMask(from);
317 if(user == NULL) return 0;
318 if(!is_firstBotSeeUser(client, user)) return 1; //we ignore it - but it's not a parse error
319 int registering = !stricmp(argv[0], "Registered");
320 if((registering && (user->flags & USERFLAG_ISBOT))) return 1; //bot is registering - just ignore it
321 delUser(user, 0); //a little bit crazy, but we want to delete the user on the channel's userlists - but not the users channel list
322 event_quit(user, argv[0]);
323 if(user->flags & USERFLAG_ISBOT) {
324 //check if there are other bots in the users channel - otherwise free them
325 struct ChanUser *chanuser, *next;
326 for(chanuser = getUserChannels(user, NULL); chanuser; chanuser = next) {
327 next = getUserChannels(user, chanuser);
328 if(chanuser->chan->chanbot == user)
329 checkChannelVisibility(chanuser->chan);
331 //search the user representing the bot in the world of IRC
332 struct ClientSocket *bot;
333 for(bot = getBots(0, NULL); bot; bot = getBots(0, bot)) {
334 if(bot->user == user) {
339 } else if(!registering) {
340 struct ChanUser *chanuser;
341 struct ChanNode *chan;
342 for(chanuser = user->channel; chanuser; chanuser = chanuser->next_chan) {
343 chan = chanuser->chan;
344 if((chan->flags & CHANFLAG_RECEIVED_USERLIST) && !(chan->flags & CHANFLAG_REJOINING))
345 check_full_rejoin(chan);
348 if(registering && !(user->flags & USERFLAG_ISBOT)) {
349 user->next = registering_users;
350 user->created = time(0);
351 registering_users = user;
353 delUser(user, 1); //now we fully free the user
357 void bot_disconnect(struct ClientSocket *client) {
358 struct UserNode *user = client->user;
359 struct ChanUser *chanuser, *next;
361 if(is_onlyBotSeeUser(client, user)) {
362 //ok the bot-user is not seen by any other bots so we can simply free it.
364 event_quit(user, "disconnected");
365 for(chanuser = getUserChannels(user, NULL); chanuser; chanuser = next) {
366 next = getUserChannels(user, chanuser);
367 if(chanuser->chan->chanbot == user)
368 checkChannelVisibility(chanuser->chan);
369 freeChanUser(chanuser);
371 user->channel = NULL;
372 delUser(user, 1); //now we fully free the user
374 //we need to transform the bot-user back to a normal user (BNC FIX)
375 user->flags &= ~USERFLAG_ISBOT;
376 for(chanuser = getUserChannels(user, NULL); chanuser; chanuser = next) {
377 next = getUserChannels(user, chanuser);
378 if(chanuser->chan->chanbot == user)
379 checkChannelVisibility(chanuser->chan);
386 static IRC_CMD(raw_kick) {
387 if(from == NULL || argc < 3) return 0;
388 struct UserNode *user = getUserByMask(from);
389 struct UserNode *target = getUserByNick(argv[1]);
390 struct ChanNode *chan = getChanByName(argv[0]);
391 if(chan == NULL || target == NULL) return 0;
392 if(((!isBot(target) && chan->chanbot != client->user) || (isBot(target) && client->user != target))) return 1; //we ignore it - but it's not a parse error
393 int keep_channel = 1;
394 if(isUserOnChan(target, chan) && (chan->flags & CHANFLAG_RECEIVED_USERLIST)) {
396 user = createTempUser(from);
397 user->flags |= USERFLAG_ISTMPUSER;
399 struct ChanUser *chanuser = getChanUser(target, chan);
400 delChanUser(chanuser, 0); //we need to free the chanuser manually!
401 event_kick(user, chanuser, argv[1]);
402 if(chanuser->chan->chanbot == user) {
403 //check if theres another bot in the channel - otherwise free it
404 keep_channel = checkChannelVisibility(chan);
406 freeChanUser(chanuser);
408 if(target->channel == NULL && !(target->flags & USERFLAG_ISBOT)) {
412 if(keep_channel && (chan->flags & CHANFLAG_RECEIVED_USERLIST) && !(chan->flags & CHANFLAG_REJOINING)) {
413 check_full_rejoin(chan);
418 static IRC_CMD(raw_topic) {
419 if(from == NULL || argc < 2) return 0;
420 struct UserNode *user = getUserByMask(from);
421 struct ChanNode *chan = getChanByName(argv[0]);
422 if(chan == NULL) return 0;
423 if(chan->chanbot != client->user) return 1; //just ignore it to prevent event duplicates
425 user = createTempUser(from);
426 user->flags |= USERFLAG_ISTMPUSER;
428 event_topic(user, chan, argv[1]);
429 strcpy(chan->topic, argv[1]);
433 static IRC_CMD(raw_privmsg) {
434 if(from == NULL || argc < 2) return 0;
435 struct UserNode *user = getUserByMask(from);
437 user = createTempUser(from);
438 user->flags |= USERFLAG_ISTMPUSER;
440 if(!stricmp(user->nick, "*status") && !match("Disconnected from IRC.*", argv[1])) {
442 bot_disconnect(client);
445 if(!stricmp(user->nick, "-sBNC") && !match("* disconnected from the server.", argv[1])) {
447 bot_disconnect(client);
450 if(argv[0][0] == '#') { //Channel message
451 struct ChanNode *chan = getChanByName(argv[0]);
452 if(chan && chan->chanbot == client->user) {
453 if(statistics_enabled)
454 statistics_privmsg++;
455 if(argv[1][0] == '\001') {
456 char *cmd = &argv[1][1];
457 char *text = strstr(cmd, " ");
461 if(strlen(text) && text[strlen(text)-1] == '\001')
462 text[strlen(text)-1] = '\0';
463 } else if(strlen(cmd) && cmd[strlen(cmd)-1] == '\001')
464 cmd[strlen(cmd)-1] = '\0';
465 event_chanctcp(user, chan, cmd, text);
467 event_chanmsg(user, chan, argv[1]);
470 struct UserNode *target = getUserByNick(argv[0]);
472 if(argv[1][0] == '\001') {
473 char *cmd = &argv[1][1];
474 char *text = strstr(cmd, " ");
478 if(strlen(text) && text[strlen(text)-1] == '\001')
479 text[strlen(text)-1] = '\0';
480 } else if(strlen(cmd) && cmd[strlen(cmd)-1] == '\001')
481 cmd[strlen(cmd)-1] = '\0';
482 event_privctcp(user, target, cmd, text);
484 event_privmsg(user, target, argv[1]);
490 static IRC_CMD(raw_notice) {
491 if(from == NULL || argc < 2) return 0;
492 struct UserNode *user = getUserByMask(from);
494 user = createTempUser(from);
495 user->flags |= USERFLAG_ISTMPUSER;
497 if(argv[0][0] == '#') { //Channel notice
498 struct ChanNode *chan = getChanByName(argv[0]);
499 if(chan && chan->chanbot == client->user)
500 event_channotice(user, chan, argv[1]);
502 struct UserNode *target = getUserByNick(argv[0]);
504 event_privnotice(user, target, argv[1]);
509 static IRC_CMD(raw_nick) {
510 if(from == NULL || argc == 0) return 0;
511 struct UserNode *user = getUserByMask(from);
512 if(user == NULL) return 0;
513 if(!is_firstBotSeeUser(client, user)) return 1; //we ignore it - but it's not a parse error
514 event_nick(user, argv[0]);
515 renameUser(user, argv[0]);
519 static IRC_CMD(raw_ping) {
520 if(argc == 0) return 0;
521 putsock(client, "PONG :%s", argv[0]);
525 static IRC_CMD(raw_354) {
526 recv_whohandler_354(client, argv, argc);
530 static IRC_CMD(raw_315) {
531 recv_whohandler_315(client, argv, argc);
535 static IRC_CMD(raw_324) { //MODE LIST
536 //Watchcat #pktest +stnzN
537 if(from == NULL || argc < 3) return 0;
538 struct ChanNode *chan = getChanByName(argv[1]);
539 if(chan == NULL) return 0;
540 parseModes(chan->modes, argv[2], argv+3, argc-3);
544 static IRC_CMD(raw_invite) {
545 if(from == NULL || argc < 2) return 0;
546 struct UserNode *user = getUserByMask(from);
548 user = createTempUser(from);
549 user->flags |= USERFLAG_ISTMPUSER;
551 event_invite(client, user, argv[1]);
555 static IRC_CMD(raw_mode) {
556 if(from == NULL || argc < 2) return 0;
557 struct UserNode *user = getUserByMask(from);
559 user = createTempUser(from);
560 user->flags |= USERFLAG_ISTMPUSER;
562 if(argv[0][0] == '#') {
564 struct ChanNode *chan = getChanByName(argv[0]);
566 if(chan->chanbot != client->user) return 1;
567 event_mode(user, chan, argv[1], argv+2, argc-2);
568 parseModes(chan->modes, argv[1], argv+2, argc-2);
575 static IRC_CMD(raw_367) {
576 //Watchcat #pktest pk911!*@* TestBot!~bot@pktest.user.WebGamesNet 1315863279
577 struct ChanNode *chan = getChanByName(argv[1]);
580 while((ban = getMatchingChannelBan(chan, argv[2]))) {
581 removeChannelBan(ban);
583 addChannelBan(chan, argv[2]);
587 static IRC_CMD(raw_251) {
588 if(argc < 2) return 0;
589 char *total_user_str = argv[1];
590 char total_visible[20], total_invisible[20];
591 int i, total_visible_pos = 0, total_invisible_pos = 0;
592 while(*total_user_str) {
593 if(*total_user_str == ' ') {
596 if(total_visible_pos < 20)
597 total_visible[total_visible_pos++] = *total_user_str;
599 if(total_invisible_pos < 20)
600 total_invisible[total_invisible_pos++] = *total_user_str;
604 total_visible[total_visible_pos] = '\0';
605 total_invisible[total_invisible_pos] = '\0';
606 statistics_network_users = atoi(total_visible) + atoi(total_invisible);
610 static IRC_CMD(raw_254) {
611 if(argc < 3) return 0;
612 statistics_network_channels = atoi(argv[1]);
617 static IRC_CMD(raw_332) {
618 //Skynet #neonserv :topic
619 struct ChanNode *chan = getChanByName(argv[1]);
621 strcpy(chan->topic, argv[2]);
626 //all the raws we receive...
627 register_irc_function("002", raw_002);
628 register_irc_function("251", raw_251);
629 register_irc_function("254", raw_254);
630 register_irc_function("324", raw_324);
631 register_irc_function("332", raw_332);
632 register_irc_function("367", raw_367);
633 register_irc_function("INVITE", raw_invite);
634 register_irc_function("NOTICE", raw_notice);
635 register_irc_function("TOPIC", raw_topic);
636 register_irc_function("KICK", raw_kick);
637 register_irc_function("PART", raw_part);
638 register_irc_function("QUIT", raw_quit);
639 register_irc_function("JOIN", raw_join);
640 register_irc_function("MODE", raw_mode);
641 register_irc_function("NICK", raw_nick);
642 register_irc_function("354", raw_354);
643 register_irc_function("315", raw_315);
644 register_irc_function("PING", raw_ping);
645 register_irc_function("PRIVMSG", raw_privmsg);
649 struct irc_cmd *cmd, *next;
650 for(cmd = irc_commands; cmd; cmd = next) {
656 void reply(struct ClientSocket *client, struct UserNode *user, const char *text, ...) {
657 const char *reply_format = get_language_string(user, text);
658 if(reply_format == NULL)
660 loadUserSettings(user);
661 char formatBuf[MAXLEN];
662 sprintf(formatBuf, "%s %s :%s", ((user->flags & USERFLAG_REPLY_PRIVMSG) ? "PRIVMSG" : "NOTICE"), user->nick, reply_format);
664 char sendBuf[MAXLEN];
666 if (!(client->flags & SOCKET_FLAG_CONNECTED)) return;
668 va_start(arg_list, text);
669 pos = vsnprintf(sendBuf, MAXLEN - 2, formatBuf, arg_list);
671 if (pos < 0 || pos > (MAXLEN - 2)) pos = MAXLEN - 2;
673 sendBuf[pos+1] = '\0';
674 write_socket(client, sendBuf, pos+1);
677 char* merge_argv(char **argv, int start, int end) {
678 return merge_argv_char(argv, start, end, ' ');
681 char* merge_argv_char(char **argv, int start, int end, char seperator) {
684 for(i = start; i < end; i++) {