1 /* IRCParser.c - NeonServ v5.3
2 * Copyright (C) 2011-2012 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];
61 printf("[%lu recv %lu] %s\n", syscall(SYS_gettid), (unsigned long) strlen(line), line);
63 printf("[recv %lu] %s\n", (unsigned long) strlen(line), line);
74 //the rest is a single parameter
75 argv[argc++] = line + 1;
79 if (argc >= MAXNUMPARAMS)
81 while (*line != ' ' && *line)
85 parse_raw(client, argv[0], argv[1], argv+2, argc-2);
89 static void register_irc_function(char *command, irc_cmd_t *func) {
90 struct irc_cmd *irc_cmd = malloc(sizeof(*irc_cmd));
93 perror("malloc() failed");
96 irc_cmd->cmd = command;
98 irc_cmd->next = irc_commands;
99 irc_commands = irc_cmd;
102 static void parse_raw(struct ClientSocket *client, char *from, char *cmd, char **argv, int argc) {
103 struct irc_cmd *irc_cmd;
105 for(irc_cmd = irc_commands; irc_cmd; irc_cmd = irc_cmd->next) {
106 if(!stricmp(irc_cmd->cmd, cmd)) {
107 ret = irc_cmd->func(client, from, argv, argc);
112 event_raw(client, from, cmd, argv, argc);
114 fprintf(stderr,"PARSE ERROR: %s\n", cmd);
118 static USERLIST_CALLBACK(got_channel_userlist) {
119 struct ChanUser *chanuser = data;
120 event_join(chanuser);
123 static IRC_CMD(raw_002) { //fixed: ZNC fakes a 001 raw even if we're not connected!
124 struct UserNode *user = getUserByNick(argv[0]);
126 user = addUser(argv[0]);
128 client->user->flags |= USERFLAG_ISBOT;
129 client->flags |= SOCKET_FLAG_READY;
130 event_bot_ready(client);
134 static int is_firstBotSeeUser(struct ClientSocket *client, struct UserNode *user) {
135 struct ClientSocket *bot, *pref_bot = NULL, *unpref_bot = NULL;
136 struct ChanUser *chanuser;
138 for(bot = getBots(SOCKET_FLAG_READY, NULL); bot; bot = getBots(SOCKET_FLAG_READY, bot)) {
140 for(chanuser = getUserChannels(bot->user, NULL); chanuser; chanuser = getUserChannels(bot->user, chanuser)) {
141 if(isUserOnChan(user, chanuser->chan)) {
147 if(bot->flags & SOCKET_FLAG_PREFERRED) {
153 bot = (pref_bot ? pref_bot : unpref_bot);
160 static int is_onlyBotSeeUser(struct ClientSocket *client, struct UserNode *user) {
161 struct ClientSocket *bot;
162 struct ChanUser *chanuser;
163 for(bot = getBots(SOCKET_FLAG_READY, NULL); bot; bot = getBots(SOCKET_FLAG_READY, bot)) {
164 if(bot == client) continue;
165 for(chanuser = getUserChannels(bot->user, NULL); chanuser; chanuser = getUserChannels(bot->user, chanuser)) {
166 if(isUserOnChan(user, chanuser->chan)) {
174 static IRC_CMD(raw_join) {
175 if(from == NULL || argc < 1) return 0;
176 struct UserNode *user = getUserByMask(from);
177 struct ChanNode *chan = getChanByName(argv[0]);
178 if(!chan && (!user || !(user->flags & USERFLAG_ISBOT))) return 0;
179 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
180 //let Bots always add themselves! (maybe they join invisible)
182 user = addUserMask(from);
184 struct UserNode *registering, *last_registering = NULL, *next_registering;
185 int noEvent = 0, wasRegistering = 0;
186 for(registering = registering_users; registering; registering = next_registering) {
187 next_registering = registering->next;
188 if(!strcmp(registering->nick, user->nick)) {
189 noEvent = event_registered(registering, user);
192 last_registering->next = registering->next;
194 registering_users = registering->next;
195 delUser(registering, 1);
196 } else if(time(0) - registering->created > 2) {
198 last_registering->next = registering->next;
200 registering_users = registering->next;
201 delUser(registering, 1);
203 last_registering = registering;
206 chan = addChannel(argv[0]);
207 //request member list
208 chan->chanbot = user;
209 struct ChanUser *chanuser = addChanUser(chan, user); //it must be a bot
210 get_userlist_with_invisible(chan, got_channel_userlist, chanuser);
211 putsock(client, "MODE %s", chan->name);
212 putsock(client, "MODE %s +b", chan->name);
213 } else if(!isUserOnChan(user, chan) && ((chan->flags & CHANFLAG_RECEIVED_USERLIST) || isBot(user))) {
214 struct ChanUser *chanuser = addChanUser(chan, user);
215 if(isModeSet(chan->modes, 'D'))
216 chanuser->flags |= CHANUSERFLAG_INVISIBLE;
219 user->flags |= USERFLAG_WAS_REGISTRING;
220 event_join(chanuser);
222 user->flags &= ~USERFLAG_WAS_REGISTRING;
224 if(!(user->flags & USERFLAG_ISBOT) && (chan->flags & CHANFLAG_REJOINING)) {
225 //ABORT REJOIN (security break)
226 struct ClientSocket **clients = chan->rejoin_array;
228 putsock(*clients, "JOIN %s", chan->name);
231 free(chan->rejoin_array);
232 chan->flags &= ~CHANFLAG_REJOINING;
234 } else if(chan->usercount == 1 && isUserOnChan(user, chan)) {
236 struct ChanUser *chanuser = getChanUser(user, chan);
237 chanuser->flags &= ~CHANUSERFLAG_VOICED;
238 chanuser->flags |= CHANUSERFLAG_OPPED;
243 static void check_full_rejoin(struct ChanNode *chan) {
244 struct ChanUser *chanuser;
247 for(chanuser = getChannelUsers(chan, NULL); chanuser; chanuser = getChannelUsers(chan, chanuser)) {
248 if((chanuser->flags & CHANUSERFLAG_OPPED) || !(chanuser->user->flags & USERFLAG_ISBOT)) {
252 if((chanuser->user->flags & USERFLAG_ISBOT))
256 struct ClientSocket **clients = calloc(botcount, sizeof(*clients));
257 struct ClientSocket *bot, *chanbot;
259 for(bot = getBots(SOCKET_FLAG_READY, NULL); bot; bot = getBots(SOCKET_FLAG_READY, bot)) {
260 if(bot->user != chan->chanbot && isUserOnChan(bot->user, chan)) {
262 putsock(bot, "PART %s :rejoining", chan->name);
263 } else if(bot->user == chan->chanbot)
266 chan->flags |= CHANFLAG_REJOINING;
267 chan->rejoin_array = clients;
270 putsock(chanbot, "PART %s :magic hop", chan->name);
271 putsock(chanbot, "JOIN %s", chan->name);
276 static IRC_CMD(raw_part) {
277 if(from == NULL || argc < 1) return 0;
278 struct UserNode *user = getUserByMask(from);
279 if(user == NULL) return 0;
280 struct ChanNode *chan = getChanByName(argv[0]);
281 if(chan == NULL) return 0;
282 if((!isBot(user) && chan->chanbot != client->user) || (isBot(user) && client->user != user)) return 1; //we ignore it - but it's not a parse error
283 int keep_channel = 1;
284 if(chan->chanbot == user && (chan->flags & CHANFLAG_REJOINING)) {
285 struct ClientSocket **clients = chan->rejoin_array;
287 putsock(*clients, "JOIN %s", chan->name);
290 free(chan->rejoin_array);
291 chan->flags &= ~CHANFLAG_REJOINING;
293 } else if(isUserOnChan(user, chan) && (chan->flags & CHANFLAG_RECEIVED_USERLIST)) {
294 struct ChanUser *chanuser = getChanUser(user, chan);
295 delChanUser(chanuser, 0); //we need to free the chanuser manually!
296 event_part(chanuser, (argc > 1 ? argv[1] : NULL));
297 freeChanUser(chanuser);
298 if(chan->chanbot == user) {
299 //check if theres another bot in the channel - otherwise free it
300 keep_channel = checkChannelVisibility(chan);
303 if(user->channel == NULL && !(user->flags & USERFLAG_ISBOT)) {
307 if(keep_channel && (chan->flags & CHANFLAG_RECEIVED_USERLIST) && !(chan->flags & CHANFLAG_REJOINING)) {
308 check_full_rejoin(chan);
310 else if(keep_channel && (chan->flags & CHANFLAG_REJOINING) && chan->usercount == 1) {
311 //bot is alone... rejoin!
312 putsock(client, "PART %s :magic hop", chan->name);
313 putsock(client, "JOIN %s", chan->name);
318 static IRC_CMD(raw_quit) {
319 if(from == NULL || argc < 1) return 0;
320 struct UserNode *user = getUserByMask(from);
321 if(user == NULL) return 0;
322 if(!is_firstBotSeeUser(client, user)) return 1; //we ignore it - but it's not a parse error
323 int registering = !stricmp(argv[0], "Registered");
324 if((registering && (user->flags & USERFLAG_ISBOT))) return 1; //bot is registering - just ignore it
325 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
326 event_quit(user, argv[0]);
327 if(user->flags & USERFLAG_ISBOT) {
328 //check if there are other bots in the users channel - otherwise free them
329 struct ChanUser *chanuser, *next;
330 for(chanuser = getUserChannels(user, NULL); chanuser; chanuser = next) {
331 next = getUserChannels(user, chanuser);
332 if(chanuser->chan->chanbot == user)
333 checkChannelVisibility(chanuser->chan);
335 //search the user representing the bot in the world of IRC
336 struct ClientSocket *bot;
337 for(bot = getBots(0, NULL); bot; bot = getBots(0, bot)) {
338 if(bot->user == user) {
339 bot->flags &= ~SOCKET_FLAG_READY;
344 } else if(!registering) {
345 struct ChanUser *chanuser;
346 struct ChanNode *chan;
347 for(chanuser = user->channel; chanuser; chanuser = chanuser->next_chan) {
348 chan = chanuser->chan;
349 if((chan->flags & CHANFLAG_RECEIVED_USERLIST) && !(chan->flags & CHANFLAG_REJOINING))
350 check_full_rejoin(chan);
353 if(registering && !(user->flags & USERFLAG_ISBOT)) {
354 user->next = registering_users;
355 user->created = time(0);
356 registering_users = user;
358 delUser(user, 1); //now we fully free the user
362 void bot_disconnect(struct ClientSocket *client) {
363 struct UserNode *user = client->user;
364 struct ChanUser *chanuser, *next;
366 if(is_onlyBotSeeUser(client, user)) {
367 //ok the bot-user is not seen by any other bots so we can simply free it.
369 event_quit(user, "disconnected");
370 for(chanuser = getUserChannels(user, NULL); chanuser; chanuser = next) {
371 next = getUserChannels(user, chanuser);
372 if(chanuser->chan->chanbot == user)
373 checkChannelVisibility(chanuser->chan);
374 freeChanUser(chanuser);
376 user->channel = NULL;
377 delUser(user, 1); //now we fully free the user
379 //we need to transform the bot-user back to a normal user (BNC FIX)
380 user->flags &= ~USERFLAG_ISBOT;
381 for(chanuser = getUserChannels(user, NULL); chanuser; chanuser = next) {
382 next = getUserChannels(user, chanuser);
383 if(chanuser->chan->chanbot == user)
384 checkChannelVisibility(chanuser->chan);
388 client->flags &= ~SOCKET_FLAG_READY;
392 static IRC_CMD(raw_kick) {
393 if(from == NULL || argc < 3) return 0;
394 struct UserNode *user = getUserByMask(from);
395 struct UserNode *target = getUserByNick(argv[1]);
396 struct ChanNode *chan = getChanByName(argv[0]);
397 if(chan == NULL || target == NULL) return 0;
398 if(((!isBot(target) && chan->chanbot != client->user) || (isBot(target) && client->user != target))) return 1; //we ignore it - but it's not a parse error
399 int keep_channel = 1;
400 if(isUserOnChan(target, chan) && (chan->flags & CHANFLAG_RECEIVED_USERLIST)) {
402 user = createTempUserMask(from);
404 user->flags |= USERFLAG_ISTMPUSER;
406 struct ChanUser *chanuser = getChanUser(target, chan);
407 delChanUser(chanuser, 0); //we need to free the chanuser manually!
408 event_kick(user, chanuser, argv[1]);
409 if(chanuser->chan->chanbot == user) {
410 //check if theres another bot in the channel - otherwise free it
411 keep_channel = checkChannelVisibility(chan);
413 freeChanUser(chanuser);
415 if(target->channel == NULL && !(target->flags & USERFLAG_ISBOT)) {
419 if(keep_channel && (chan->flags & CHANFLAG_RECEIVED_USERLIST) && !(chan->flags & CHANFLAG_REJOINING)) {
420 check_full_rejoin(chan);
425 static IRC_CMD(raw_topic) {
426 if(from == NULL || argc < 2) return 0;
427 struct UserNode *user = getUserByMask(from);
428 struct ChanNode *chan = getChanByName(argv[0]);
429 if(chan == NULL) return 0;
430 if(chan->chanbot != client->user) return 1; //just ignore it to prevent event duplicates
432 user = createTempUserMask(from);
434 user->flags |= USERFLAG_ISTMPUSER;
436 event_topic(user, chan, argv[1]);
437 strcpy(chan->topic, argv[1]);
441 static IRC_CMD(raw_privmsg) {
442 if(from == NULL || argc < 2) return 0;
443 struct UserNode *user = getUserByMask(from);
445 user = createTempUserMask(from);
447 user->flags |= USERFLAG_ISTMPUSER;
449 if(!stricmp(user->nick, "*status") && !match("Disconnected from IRC.*", argv[1])) {
451 bot_disconnect(client);
454 if(!stricmp(user->nick, "-sBNC") && !match("* disconnected from the server.", argv[1])) {
456 bot_disconnect(client);
459 if(argv[0][0] == '#') { //Channel message
460 struct ChanNode *chan = getChanByName(argv[0]);
461 if(chan && chan->chanbot == client->user) {
462 if(statistics_enabled)
463 statistics_privmsg++;
464 if(argv[1][0] == '\001') {
465 char *cmd = &argv[1][1];
466 char *text = strstr(cmd, " ");
470 if(strlen(text) && text[strlen(text)-1] == '\001')
471 text[strlen(text)-1] = '\0';
472 } else if(strlen(cmd) && cmd[strlen(cmd)-1] == '\001')
473 cmd[strlen(cmd)-1] = '\0';
474 event_chanctcp(user, chan, cmd, text);
476 event_chanmsg(user, chan, argv[1]);
479 struct UserNode *target = getUserByNick(argv[0]);
481 if(argv[1][0] == '\001') {
482 char *cmd = &argv[1][1];
483 char *text = strstr(cmd, " ");
487 if(strlen(text) && text[strlen(text)-1] == '\001')
488 text[strlen(text)-1] = '\0';
489 } else if(strlen(cmd) && cmd[strlen(cmd)-1] == '\001')
490 cmd[strlen(cmd)-1] = '\0';
491 event_privctcp(user, target, cmd, text);
493 event_privmsg(user, target, argv[1]);
499 static IRC_CMD(raw_notice) {
500 if(from == NULL || argc < 2) return 0;
501 struct UserNode *user = getUserByMask(from);
503 user = createTempUserMask(from);
505 user->flags |= USERFLAG_ISTMPUSER;
507 if(argv[0][0] == '#') { //Channel notice
508 struct ChanNode *chan = getChanByName(argv[0]);
509 if(chan && chan->chanbot == client->user)
510 event_channotice(user, chan, argv[1]);
512 struct UserNode *target = getUserByNick(argv[0]);
514 event_privnotice(user, target, argv[1]);
519 static IRC_CMD(raw_nick) {
520 if(from == NULL || argc == 0) return 0;
521 struct UserNode *user = getUserByMask(from);
522 if(user == NULL) return 0;
523 if(!is_firstBotSeeUser(client, user)) return 1; //we ignore it - but it's not a parse error
524 event_nick(user, argv[0]);
525 renameUser(user, argv[0]);
529 static IRC_CMD(raw_ping) {
530 if(argc == 0) return 0;
531 putsock(client, "PONG :%s", argv[0]);
535 static IRC_CMD(raw_354) {
536 recv_whohandler_354(client, argv, argc);
540 static IRC_CMD(raw_315) {
541 recv_whohandler_315(client, argv, argc);
545 static IRC_CMD(raw_324) { //MODE LIST
546 //Watchcat #pktest +stnzN
547 if(from == NULL || argc < 3) return 0;
548 struct ChanNode *chan = getChanByName(argv[1]);
549 if(chan == NULL) return 0;
550 parseModes(chan->modes, argv[2], argv+3, argc-3);
554 static IRC_CMD(raw_invite) {
555 if(from == NULL || argc < 2) return 0;
556 struct UserNode *user = getUserByMask(from);
558 user = createTempUserMask(from);
560 user->flags |= USERFLAG_ISTMPUSER;
562 event_invite(client, user, argv[1]);
566 static IRC_CMD(raw_mode) {
567 if(from == NULL || argc < 2) return 0;
568 struct UserNode *user = getUserByMask(from);
570 user = createTempUserMask(from);
572 user->flags |= USERFLAG_ISTMPUSER;
574 if(argv[0][0] == '#') {
576 struct ChanNode *chan = getChanByName(argv[0]);
578 if(chan->chanbot != client->user) return 1;
579 parseModes(chan->modes, argv[1], argv+2, argc-2);
580 event_mode(user, chan, argv[1], argv+2, argc-2);
587 static IRC_CMD(raw_367) {
588 //Watchcat #pktest pk911!*@* TestBot!~bot@pktest.user.WebGamesNet 1315863279
589 struct ChanNode *chan = getChanByName(argv[1]);
592 while((ban = getMatchingChannelBan(chan, argv[2]))) {
593 removeChannelBan(ban);
595 addChannelBan(chan, argv[2]);
599 static IRC_CMD(raw_251) {
600 if(argc < 2) return 0;
601 char *total_user_str = argv[1];
602 char total_visible[20], total_invisible[20];
603 int i = 0, total_visible_pos = 0, total_invisible_pos = 0;
604 while(*total_user_str) {
605 if(*total_user_str == ' ') {
608 if(total_visible_pos < 20)
609 total_visible[total_visible_pos++] = *total_user_str;
611 if(total_invisible_pos < 20)
612 total_invisible[total_invisible_pos++] = *total_user_str;
616 total_visible[total_visible_pos] = '\0';
617 total_invisible[total_invisible_pos] = '\0';
618 statistics_network_users = atoi(total_visible) + atoi(total_invisible);
622 static IRC_CMD(raw_254) {
623 if(argc < 3) return 0;
624 statistics_network_channels = atoi(argv[1]);
629 static IRC_CMD(raw_332) {
630 //Skynet #neonserv :topic
631 struct ChanNode *chan = getChanByName(argv[1]);
633 strcpy(chan->topic, argv[2]);
638 //all the raws we receive...
639 register_irc_function("002", raw_002);
640 register_irc_function("251", raw_251);
641 register_irc_function("254", raw_254);
642 register_irc_function("324", raw_324);
643 register_irc_function("332", raw_332);
644 register_irc_function("367", raw_367);
645 register_irc_function("INVITE", raw_invite);
646 register_irc_function("NOTICE", raw_notice);
647 register_irc_function("TOPIC", raw_topic);
648 register_irc_function("KICK", raw_kick);
649 register_irc_function("PART", raw_part);
650 register_irc_function("QUIT", raw_quit);
651 register_irc_function("JOIN", raw_join);
652 register_irc_function("MODE", raw_mode);
653 register_irc_function("NICK", raw_nick);
654 register_irc_function("354", raw_354);
655 register_irc_function("315", raw_315);
656 register_irc_function("PING", raw_ping);
657 register_irc_function("PRIVMSG", raw_privmsg);
661 struct irc_cmd *cmd, *next;
662 for(cmd = irc_commands; cmd; cmd = next) {
668 void reply(struct ClientSocket *client, struct UserNode *user, const char *text, ...) {
669 const char *reply_format = get_language_string(user, text);
670 if(reply_format == NULL)
672 loadUserSettings(user);
673 char formatBuf[MAXLEN];
674 sprintf(formatBuf, "%s %s :%s", ((user->flags & USERFLAG_REPLY_PRIVMSG) ? "PRIVMSG" : "NOTICE"), user->nick, reply_format);
676 char sendBuf[MAXLEN];
678 if (!(client->flags & SOCKET_FLAG_CONNECTED)) return;
680 va_start(arg_list, text);
681 pos = vsnprintf(sendBuf, MAXLEN - 2, formatBuf, arg_list);
683 if (pos < 0 || pos > (MAXLEN - 2)) pos = MAXLEN - 2;
685 sendBuf[pos+1] = '\0';
686 write_socket(client, sendBuf, pos+1);
689 char* merge_argv(char **argv, int start, int end) {
690 return merge_argv_char(argv, start, end, ' ');
693 char* merge_argv_char(char **argv, int start, int end, char seperator) {
696 for(i = start; i < end; i++) {
700 while(p != argv[i+1]) {