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"
30 struct irc_cmd *irc_commands = NULL;
31 static struct UserNode *registering_users = NULL;
32 int statistics_privmsg = 0;
33 int statistics_network_users = 0;
34 int statistics_network_channels = 0;
36 static void parse_line(struct ClientSocket *client, char *line);
37 static void register_irc_function(char *command, irc_cmd_t *func);
38 static void parse_raw(struct ClientSocket *client, char *from, char *cmd, char **argv, int argc);
40 int parse_lines(struct ClientSocket *client, char *lines, int len) {
43 for(i = 0; i < len; i++) {
44 if(lines[i] == '\r') //just zero it out :D
46 if(lines[i] == '\n') {
48 parse_line(client, line);
56 static void parse_line(struct ClientSocket *client, char *line) {
58 char *argv[MAXNUMPARAMS];
59 printf("[recv %lu] %s\n", (unsigned long) strlen(line), line);
69 //the rest is a single parameter
70 argv[argc++] = line + 1;
74 if (argc >= MAXNUMPARAMS)
76 while (*line != ' ' && *line)
80 parse_raw(client, argv[0], argv[1], argv+2, argc-2);
84 static void register_irc_function(char *command, irc_cmd_t *func) {
85 struct irc_cmd *irc_cmd = malloc(sizeof(*irc_cmd));
88 perror("malloc() failed");
91 irc_cmd->cmd = command;
93 irc_cmd->next = irc_commands;
94 irc_commands = irc_cmd;
97 static void parse_raw(struct ClientSocket *client, char *from, char *cmd, char **argv, int argc) {
98 struct irc_cmd *irc_cmd;
100 for(irc_cmd = irc_commands; irc_cmd; irc_cmd = irc_cmd->next) {
101 if(!stricmp(irc_cmd->cmd, cmd)) {
102 ret = irc_cmd->func(client, from, argv, argc);
107 event_raw(client, from, cmd, argv, argc);
109 fprintf(stderr,"PARSE ERROR: %s\n", cmd);
113 static USERLIST_CALLBACK(got_channel_userlist) {
114 struct ChanUser *chanuser = data;
115 event_join(chanuser);
118 static IRC_CMD(raw_001) {
119 struct UserNode *user = getUserByNick(argv[0]);
121 user = addUser(argv[0]);
123 client->user->flags |= USERFLAG_ISBOT;
124 client->flags |= SOCKET_FLAG_READY;
125 event_bot_ready(client);
129 static int is_firstBotSeeUser(struct ClientSocket *client, struct UserNode *user) {
130 struct ClientSocket *bot, *pref_bot = NULL, *unpref_bot = NULL;
131 struct ChanUser *chanuser;
133 for(bot = getBots(SOCKET_FLAG_READY, NULL); bot; bot = getBots(SOCKET_FLAG_READY, bot)) {
135 for(chanuser = getUserChannels(bot->user, NULL); chanuser; chanuser = getUserChannels(bot->user, chanuser)) {
136 if(isUserOnChan(user, chanuser->chan)) {
142 if(bot->flags & SOCKET_FLAG_PREFERRED) {
148 bot = (pref_bot ? pref_bot : unpref_bot);
155 static int is_onlyBotSeeUser(struct ClientSocket *client, struct UserNode *user) {
156 struct ClientSocket *bot;
157 struct ChanUser *chanuser;
158 for(bot = getBots(SOCKET_FLAG_READY, NULL); bot; bot = getBots(SOCKET_FLAG_READY, bot)) {
159 if(bot == client) continue;
160 for(chanuser = getUserChannels(bot->user, NULL); chanuser; chanuser = getUserChannels(bot->user, chanuser)) {
161 if(isUserOnChan(user, chanuser->chan)) {
169 static IRC_CMD(raw_join) {
170 if(from == NULL || argc < 1) return 0;
171 struct UserNode *user = getUserByMask(from);
172 struct ChanNode *chan = getChanByName(argv[0]);
173 if(!chan && !(user->flags & USERFLAG_ISBOT)) return 0;
174 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
175 //let Bots always add themselves! (maybe they join invisible)
177 user = addUserMask(from);
179 struct UserNode *registering, *last_registering = NULL, *next_registering;
180 int noEvent = 0, wasRegistering = 0;
181 for(registering = registering_users; registering; registering = next_registering) {
182 next_registering = registering->next;
183 if(!strcmp(registering->nick, user->nick)) {
184 noEvent = event_registered(registering, user);
187 last_registering->next = registering->next;
189 registering_users = registering->next;
190 delUser(registering, 1);
191 } else if(time(0) - registering->created > 2) {
193 last_registering->next = registering->next;
195 registering_users = registering->next;
196 delUser(registering, 1);
198 last_registering = registering;
201 chan = addChannel(argv[0]);
202 //request member list
203 chan->chanbot = user;
204 struct ChanUser *chanuser = addChanUser(chan, user); //it must be a bot
205 get_userlist_with_invisible(chan, got_channel_userlist, chanuser);
206 putsock(client, "MODE %s", chan->name);
207 putsock(client, "MODE %s +b", chan->name);
208 } else if(!isUserOnChan(user, chan) && ((chan->flags & CHANFLAG_RECEIVED_USERLIST) || isBot(user))) {
209 struct ChanUser *chanuser = addChanUser(chan, user);
210 if(isModeSet(chan->modes, 'D'))
211 chanuser->flags |= CHANUSERFLAG_INVISIBLE;
214 user->flags |= USERFLAG_WAS_REGISTRING;
215 event_join(chanuser);
217 user->flags &= ~USERFLAG_WAS_REGISTRING;
219 if(!(user->flags & USERFLAG_ISBOT) && (chan->flags & CHANFLAG_REJOINING)) {
220 //ABORT REJOIN (security break)
221 struct ClientSocket **clients = chan->rejoin_array;
223 putsock(*clients, "JOIN %s", chan->name);
226 free(chan->rejoin_array);
227 chan->flags &= ~CHANFLAG_REJOINING;
229 } else if(chan->usercount == 1 && isUserOnChan(user, chan)) {
231 struct ChanUser *chanuser = getChanUser(user, chan);
232 chanuser->flags &= ~CHANUSERFLAG_VOICED;
233 chanuser->flags |= CHANUSERFLAG_OPPED;
238 static void check_full_rejoin(struct ChanNode *chan) {
239 struct ChanUser *chanuser;
242 for(chanuser = getChannelUsers(chan, NULL); chanuser; chanuser = getChannelUsers(chan, chanuser)) {
243 if((chanuser->flags & CHANUSERFLAG_OPPED) || !(chanuser->user->flags & USERFLAG_ISBOT)) {
247 if((chanuser->user->flags & USERFLAG_ISBOT))
251 struct ClientSocket **clients = calloc(botcount, sizeof(*clients));
252 struct ClientSocket *bot, *chanbot;
254 for(bot = getBots(SOCKET_FLAG_READY, NULL); bot; bot = getBots(SOCKET_FLAG_READY, bot)) {
255 if(bot->user != chan->chanbot && isUserOnChan(bot->user, chan)) {
257 putsock(bot, "PART %s :rejoining", chan->name);
258 } else if(bot->user == chan->chanbot)
261 chan->flags |= CHANFLAG_REJOINING;
262 chan->rejoin_array = clients;
265 putsock(chanbot, "PART %s :magic hop", chan->name);
266 putsock(chanbot, "JOIN %s", chan->name);
271 static IRC_CMD(raw_part) {
272 if(from == NULL || argc < 1) return 0;
273 struct UserNode *user = getUserByMask(from);
274 if(user == NULL) return 0;
275 struct ChanNode *chan = getChanByName(argv[0]);
276 if(chan == NULL) return 0;
277 if((!isBot(user) && chan->chanbot != client->user) || (isBot(user) && client->user != user)) return 1; //we ignore it - but it's not a parse error
278 int keep_channel = 1;
279 if(chan->chanbot == user && (chan->flags & CHANFLAG_REJOINING)) {
280 struct ClientSocket **clients = chan->rejoin_array;
282 putsock(*clients, "JOIN %s", chan->name);
285 free(chan->rejoin_array);
286 chan->flags &= ~CHANFLAG_REJOINING;
288 } else if(isUserOnChan(user, chan) && (chan->flags & CHANFLAG_RECEIVED_USERLIST)) {
289 struct ChanUser *chanuser = getChanUser(user, chan);
290 delChanUser(chanuser, 0); //we need to free the chanuser manually!
291 event_part(chanuser, (argc > 1 ? argv[1] : NULL));
292 freeChanUser(chanuser);
293 if(chan->chanbot == user) {
294 //check if theres another bot in the channel - otherwise free it
295 keep_channel = checkChannelVisibility(chan);
298 if(user->channel == NULL && !(user->flags & USERFLAG_ISBOT)) {
302 if(keep_channel && (chan->flags & CHANFLAG_RECEIVED_USERLIST) && !(chan->flags & CHANFLAG_REJOINING)) {
303 check_full_rejoin(chan);
305 else if(keep_channel && (chan->flags & CHANFLAG_REJOINING) && chan->usercount == 1) {
306 //bot is alone... rejoin!
307 putsock(client, "PART %s :magic hop", chan->name);
308 putsock(client, "JOIN %s", chan->name);
313 static IRC_CMD(raw_quit) {
314 if(from == NULL || argc < 1) return 0;
315 struct UserNode *user = getUserByMask(from);
316 if(user == NULL) return 0;
317 if(!is_firstBotSeeUser(client, user)) return 1; //we ignore it - but it's not a parse error
318 int registering = !stricmp(argv[0], "Registered");
319 if((registering && (user->flags & USERFLAG_ISBOT))) return 1; //bot is registering - just ignore it
320 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
321 event_quit(user, argv[0]);
322 if(user->flags & USERFLAG_ISBOT) {
323 //check if there are other bots in the users channel - otherwise free them
324 struct ChanUser *chanuser, *next;
325 for(chanuser = getUserChannels(user, NULL); chanuser; chanuser = next) {
326 next = getUserChannels(user, chanuser);
327 if(chanuser->chan->chanbot == user)
328 checkChannelVisibility(chanuser->chan);
330 //search the user representing the bot in the world of IRC
331 struct ClientSocket *bot;
332 for(bot = getBots(0, NULL); bot; bot = getBots(0, bot)) {
333 if(bot->user == user) {
338 } else if(!registering) {
339 struct ChanUser *chanuser;
340 struct ChanNode *chan;
341 for(chanuser = user->channel; chanuser; chanuser = chanuser->next_chan) {
342 chan = chanuser->chan;
343 if((chan->flags & CHANFLAG_RECEIVED_USERLIST) && !(chan->flags & CHANFLAG_REJOINING))
344 check_full_rejoin(chan);
347 if(registering && !(user->flags & USERFLAG_ISBOT)) {
348 user->next = registering_users;
349 user->created = time(0);
350 registering_users = user;
352 delUser(user, 1); //now we fully free the user
356 void bot_disconnect(struct ClientSocket *client) {
357 struct UserNode *user = client->user;
358 struct ChanUser *chanuser, *next;
360 if(is_onlyBotSeeUser(client, user)) {
361 //ok the bot-user is not seen by any other bots so we can simply free it.
363 event_quit(user, "disconnected");
364 for(chanuser = getUserChannels(user, NULL); chanuser; chanuser = next) {
365 next = getUserChannels(user, chanuser);
366 if(chanuser->chan->chanbot == user)
367 checkChannelVisibility(chanuser->chan);
368 freeChanUser(chanuser);
370 user->channel = NULL;
371 delUser(user, 1); //now we fully free the user
373 //we need to transform the bot-user back to a normal user (BNC FIX)
374 user->flags &= ~USERFLAG_ISBOT;
375 for(chanuser = getUserChannels(user, NULL); chanuser; chanuser = next) {
376 next = getUserChannels(user, chanuser);
377 if(chanuser->chan->chanbot == user)
378 checkChannelVisibility(chanuser->chan);
385 static IRC_CMD(raw_kick) {
386 if(from == NULL || argc < 3) return 0;
387 struct UserNode *user = getUserByMask(from);
388 struct UserNode *target = getUserByNick(argv[1]);
389 struct ChanNode *chan = getChanByName(argv[0]);
390 if(chan == NULL || target == NULL) return 0;
391 if(((!isBot(user) && chan->chanbot != client->user) || (isBot(user) && client->user != user))) return 1; //we ignore it - but it's not a parse error
392 int keep_channel = 1;
393 if(isUserOnChan(target, chan) && (chan->flags & CHANFLAG_RECEIVED_USERLIST)) {
395 user = createTempUser(from);
396 user->flags |= USERFLAG_ISTMPUSER;
398 struct ChanUser *chanuser = getChanUser(target, chan);
399 delChanUser(chanuser, 0); //we need to free the chanuser manually!
400 event_kick(user, chanuser, argv[1]);
401 if(chanuser->chan->chanbot == user) {
402 //check if theres another bot in the channel - otherwise free it
403 keep_channel = checkChannelVisibility(chan);
405 freeChanUser(chanuser);
407 if(target->channel == NULL && !(target->flags & USERFLAG_ISBOT)) {
411 if(keep_channel && (chan->flags & CHANFLAG_RECEIVED_USERLIST) && !(chan->flags & CHANFLAG_REJOINING)) {
412 check_full_rejoin(chan);
417 static IRC_CMD(raw_topic) {
418 if(from == NULL || argc < 2) return 0;
419 struct UserNode *user = getUserByMask(from);
420 struct ChanNode *chan = getChanByName(argv[0]);
421 if(chan == NULL) return 0;
422 if(chan->chanbot != client->user) return 1; //just ignore it to prevent event duplicates
424 user = createTempUser(from);
425 user->flags |= USERFLAG_ISTMPUSER;
427 event_topic(user, chan, argv[1]);
428 strcpy(chan->topic, argv[1]);
432 static IRC_CMD(raw_privmsg) {
433 if(from == NULL || argc < 2) return 0;
434 struct UserNode *user = getUserByMask(from);
436 user = createTempUser(from);
437 user->flags |= USERFLAG_ISTMPUSER;
439 if(argv[0][0] == '#') { //Channel message
440 struct ChanNode *chan = getChanByName(argv[0]);
441 if(chan && chan->chanbot == client->user) {
442 if(statistics_enabled)
443 statistics_privmsg++;
444 if(argv[1][0] == '\001') {
445 char *cmd = &argv[1][1];
446 char *text = strstr(cmd, " ");
450 if(strlen(text) && text[strlen(text)-1] == '\001')
451 text[strlen(text)-1] = '\0';
452 } else if(strlen(cmd) && cmd[strlen(cmd)-1] == '\001')
453 cmd[strlen(cmd)-1] = '\0';
454 event_chanctcp(user, chan, cmd, text);
456 event_chanmsg(user, chan, argv[1]);
459 struct UserNode *target = getUserByNick(argv[0]);
461 if(argv[1][0] == '\001') {
462 char *cmd = &argv[1][1];
463 char *text = strstr(cmd, " ");
467 if(strlen(text) && text[strlen(text)-1] == '\001')
468 text[strlen(text)-1] = '\0';
469 } else if(strlen(cmd) && cmd[strlen(cmd)-1] == '\001')
470 cmd[strlen(cmd)-1] = '\0';
471 event_privctcp(user, target, cmd, text);
473 event_privmsg(user, target, argv[1]);
479 static IRC_CMD(raw_notice) {
480 if(from == NULL || argc < 2) return 0;
481 struct UserNode *user = getUserByMask(from);
483 user = createTempUser(from);
484 user->flags |= USERFLAG_ISTMPUSER;
486 if(argv[0][0] == '#') { //Channel notice
487 struct ChanNode *chan = getChanByName(argv[0]);
488 if(chan && chan->chanbot == client->user)
489 event_channotice(user, chan, argv[1]);
491 struct UserNode *target = getUserByNick(argv[0]);
493 event_privnotice(user, target, argv[1]);
498 static IRC_CMD(raw_nick) {
499 if(from == NULL || argc == 0) return 0;
500 struct UserNode *user = getUserByMask(from);
501 if(user == NULL) return 0;
502 if(!is_firstBotSeeUser(client, user)) return 1; //we ignore it - but it's not a parse error
503 event_nick(user, argv[0]);
504 renameUser(user, argv[0]);
508 static IRC_CMD(raw_ping) {
509 if(argc == 0) return 0;
510 putsock(client, "PONG :%s", argv[0]);
514 static IRC_CMD(raw_354) {
515 recv_whohandler_354(client, argv, argc);
519 static IRC_CMD(raw_315) {
520 recv_whohandler_315(client, argv, argc);
524 static IRC_CMD(raw_324) { //MODE LIST
525 //Watchcat #pktest +stnzN
526 if(from == NULL || argc < 3) return 0;
527 struct ChanNode *chan = getChanByName(argv[1]);
528 if(chan == NULL) return 0;
529 parseModes(chan->modes, argv[2], argv+3, argc-3);
533 static IRC_CMD(raw_invite) {
534 if(from == NULL || argc < 2) return 0;
535 struct UserNode *user = getUserByMask(from);
537 user = createTempUser(from);
538 user->flags |= USERFLAG_ISTMPUSER;
540 event_invite(client, user, argv[1]);
544 static IRC_CMD(raw_mode) {
545 if(from == NULL || argc < 2) return 0;
546 struct UserNode *user = getUserByMask(from);
548 user = createTempUser(from);
549 user->flags |= USERFLAG_ISTMPUSER;
551 if(argv[0][0] == '#') {
553 struct ChanNode *chan = getChanByName(argv[0]);
555 if(chan->chanbot != client->user) return 1;
556 event_mode(user, chan, argv[1], argv+2, argc-2);
557 parseModes(chan->modes, argv[1], argv+2, argc-2);
564 static IRC_CMD(raw_367) {
565 //Watchcat #pktest pk911!*@* TestBot!~bot@pktest.user.WebGamesNet 1315863279
566 struct ChanNode *chan = getChanByName(argv[1]);
569 while((ban = getMatchingChannelBan(chan, argv[2]))) {
570 removeChannelBan(ban);
572 addChannelBan(chan, argv[2]);
576 static IRC_CMD(raw_251) {
577 if(argc < 2) return 0;
578 char *total_user_str = argv[1];
579 char total_visible[20], total_invisible[20];
580 int i, total_visible_pos = 0, total_invisible_pos = 0;
581 while(*total_user_str) {
582 if(*total_user_str == ' ') {
585 if(total_visible_pos < 20)
586 total_visible[total_visible_pos++] = *total_user_str;
588 if(total_invisible_pos < 20)
589 total_invisible[total_invisible_pos++] = *total_user_str;
593 total_visible[total_visible_pos] = '\0';
594 total_invisible[total_invisible_pos] = '\0';
595 statistics_network_users = atoi(total_visible) + atoi(total_invisible);
599 static IRC_CMD(raw_254) {
600 if(argc < 3) return 0;
601 statistics_network_channels = atoi(argv[1]);
606 static IRC_CMD(raw_332) {
607 //Skynet #neonserv :topic
608 struct ChanNode *chan = getChanByName(argv[1]);
610 strcpy(chan->topic, argv[2]);
615 //all the raws we receive...
616 register_irc_function("001", raw_001);
617 register_irc_function("251", raw_251);
618 register_irc_function("254", raw_254);
619 register_irc_function("324", raw_324);
620 register_irc_function("332", raw_332);
621 register_irc_function("367", raw_367);
622 register_irc_function("INVITE", raw_invite);
623 register_irc_function("NOTICE", raw_notice);
624 register_irc_function("TOPIC", raw_topic);
625 register_irc_function("KICK", raw_kick);
626 register_irc_function("PART", raw_part);
627 register_irc_function("QUIT", raw_quit);
628 register_irc_function("JOIN", raw_join);
629 register_irc_function("MODE", raw_mode);
630 register_irc_function("NICK", raw_nick);
631 register_irc_function("354", raw_354);
632 register_irc_function("315", raw_315);
633 register_irc_function("PING", raw_ping);
634 register_irc_function("PRIVMSG", raw_privmsg);
638 struct irc_cmd *cmd, *next;
639 for(cmd = irc_commands; cmd; cmd = next) {
645 void reply(struct ClientSocket *client, struct UserNode *user, const char *text, ...) {
646 const char *reply_format = get_language_string(user, text);
647 if(reply_format == NULL)
649 loadUserSettings(user);
650 char formatBuf[MAXLEN];
651 sprintf(formatBuf, "%s %s :%s", ((user->flags & USERFLAG_REPLY_PRIVMSG) ? "PRIVMSG" : "NOTICE"), user->nick, reply_format);
653 char sendBuf[MAXLEN];
655 if (!(client->flags & SOCKET_FLAG_CONNECTED)) return;
657 va_start(arg_list, text);
658 pos = vsnprintf(sendBuf, MAXLEN - 2, formatBuf, arg_list);
660 if (pos < 0 || pos > (MAXLEN - 2)) pos = MAXLEN - 2;
662 sendBuf[pos+1] = '\0';
663 write_socket(client, sendBuf, pos+1);
666 char* merge_argv(char **argv, int start, int end) {
667 return merge_argv_char(argv, start, end, ' ');
670 char* merge_argv_char(char **argv, int start, int end, char seperator) {
673 for(i = start; i < end; i++) {