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1 | /* | |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * channel.c: Controls channels. | |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2002-2005 ircd-ratbox development team | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
22 | * USA | |
23 | * | |
24 | * $Id: channel.c 3580 2007-11-07 23:45:14Z jilles $ | |
25 | */ | |
26 | ||
27 | #include "stdinc.h" | |
28 | #include "channel.h" | |
29 | #include "chmode.h" | |
30 | #include "client.h" | |
31 | #include "common.h" | |
32 | #include "hash.h" | |
33 | #include "hook.h" | |
34 | #include "match.h" | |
35 | #include "ircd.h" | |
36 | #include "numeric.h" | |
37 | #include "s_serv.h" /* captab */ | |
38 | #include "s_user.h" | |
39 | #include "send.h" | |
40 | #include "whowas.h" | |
41 | #include "s_conf.h" /* ConfigFileEntry, ConfigChannel */ | |
42 | #include "s_newconf.h" | |
43 | #include "logger.h" | |
44 | #include "packet.h" | |
45 | #include "irc_dictionary.h" | |
46 | ||
47 | struct config_channel_entry ConfigChannel; | |
48 | rb_dlink_list global_channel_list; | |
49 | static rb_bh *channel_heap; | |
50 | static rb_bh *ban_heap; | |
51 | static rb_bh *topic_heap; | |
52 | static rb_bh *member_heap; | |
53 | ||
54 | static int channel_capabs[] = { CAP_EX, CAP_IE, | |
55 | CAP_SERVICE, | |
56 | CAP_TS6 | |
57 | }; | |
58 | ||
59 | #define NCHCAPS (sizeof(channel_capabs)/sizeof(int)) | |
60 | #define NCHCAP_COMBOS (1 << NCHCAPS) | |
61 | ||
62 | static struct ChCapCombo chcap_combos[NCHCAP_COMBOS]; | |
63 | ||
64 | static void free_topic(struct Channel *chptr); | |
65 | ||
66 | static int h_can_join; | |
67 | static int h_can_create_channel; | |
68 | static int h_channel_join; | |
69 | ||
70 | /* init_channels() | |
71 | * | |
72 | * input - | |
73 | * output - | |
74 | * side effects - initialises the various blockheaps | |
75 | */ | |
76 | void | |
77 | init_channels(void) | |
78 | { | |
79 | channel_heap = rb_bh_create(sizeof(struct Channel), CHANNEL_HEAP_SIZE, "channel_heap"); | |
80 | ban_heap = rb_bh_create(sizeof(struct Ban), BAN_HEAP_SIZE, "ban_heap"); | |
81 | topic_heap = rb_bh_create(TOPICLEN + 1 + USERHOST_REPLYLEN, TOPIC_HEAP_SIZE, "topic_heap"); | |
82 | member_heap = rb_bh_create(sizeof(struct membership), MEMBER_HEAP_SIZE, "member_heap"); | |
83 | ||
84 | h_can_join = register_hook("can_join"); | |
85 | h_channel_join = register_hook("channel_join"); | |
86 | h_can_create_channel = register_hook("can_create_channel"); | |
87 | } | |
88 | ||
89 | /* | |
90 | * allocate_channel - Allocates a channel | |
91 | */ | |
92 | struct Channel * | |
93 | allocate_channel(const char *chname) | |
94 | { | |
95 | struct Channel *chptr; | |
96 | struct Dictionary *metadata; | |
97 | chptr = rb_bh_alloc(channel_heap); | |
98 | chptr->chname = rb_strdup(chname); | |
99 | ||
100 | metadata = irc_dictionary_create(irccmp); | |
101 | chptr->metadata = metadata; | |
102 | return (chptr); | |
103 | } | |
104 | ||
105 | void | |
106 | free_channel(struct Channel *chptr) | |
107 | { | |
108 | channel_metadata_clear(chptr); | |
109 | rb_free(chptr->chname); | |
110 | rb_bh_free(channel_heap, chptr); | |
111 | } | |
112 | ||
113 | struct Ban * | |
114 | allocate_ban(const char *banstr, const char *who) | |
115 | { | |
116 | struct Ban *bptr; | |
117 | bptr = rb_bh_alloc(ban_heap); | |
118 | bptr->banstr = rb_strdup(banstr); | |
119 | bptr->who = rb_strdup(who); | |
120 | ||
121 | return (bptr); | |
122 | } | |
123 | ||
124 | void | |
125 | free_ban(struct Ban *bptr) | |
126 | { | |
127 | rb_free(bptr->banstr); | |
128 | rb_free(bptr->who); | |
129 | rb_bh_free(ban_heap, bptr); | |
130 | } | |
131 | ||
132 | ||
133 | /* find_channel_membership() | |
134 | * | |
135 | * input - channel to find them in, client to find | |
136 | * output - membership of client in channel, else NULL | |
137 | * side effects - | |
138 | */ | |
139 | struct membership * | |
140 | find_channel_membership(struct Channel *chptr, struct Client *client_p) | |
141 | { | |
142 | struct membership *msptr; | |
143 | rb_dlink_node *ptr; | |
144 | ||
145 | if(!IsClient(client_p)) | |
146 | return NULL; | |
147 | ||
148 | /* Pick the most efficient list to use to be nice to things like | |
149 | * CHANSERV which could be in a large number of channels | |
150 | */ | |
151 | if(rb_dlink_list_length(&chptr->members) < rb_dlink_list_length(&client_p->user->channel)) | |
152 | { | |
153 | RB_DLINK_FOREACH(ptr, chptr->members.head) | |
154 | { | |
155 | msptr = ptr->data; | |
156 | ||
157 | if(msptr->client_p == client_p) | |
158 | return msptr; | |
159 | } | |
160 | } | |
161 | else | |
162 | { | |
163 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) | |
164 | { | |
165 | msptr = ptr->data; | |
166 | ||
167 | if(msptr->chptr == chptr) | |
168 | return msptr; | |
169 | } | |
170 | } | |
171 | ||
172 | return NULL; | |
173 | } | |
174 | ||
175 | /* find_channel_status() | |
176 | * | |
177 | * input - membership to get status for, whether we can combine flags | |
178 | * output - flags of user on channel | |
179 | * side effects - | |
180 | */ | |
181 | const char * | |
182 | find_channel_status(struct membership *msptr, int combine) | |
183 | { | |
184 | static char buffer[5]; | |
185 | char *p; | |
186 | ||
187 | p = buffer; | |
188 | ||
189 | if(is_owner(msptr)) | |
190 | { | |
191 | if(!combine) | |
192 | return "!"; | |
193 | *p++ = '!'; | |
194 | } | |
195 | ||
196 | if(is_chanop(msptr)) | |
197 | { | |
198 | if(!combine) | |
199 | return "@"; | |
200 | *p++ = '@'; | |
201 | } | |
202 | ||
203 | if(is_halfop(msptr)) | |
204 | { | |
205 | if(!combine) | |
206 | return "%"; | |
207 | *p++ = '%'; | |
208 | } | |
209 | ||
210 | if(is_voiced(msptr)) | |
211 | *p++ = '+'; | |
212 | ||
213 | *p = '\0'; | |
214 | return buffer; | |
215 | } | |
216 | ||
217 | /* is_halfop() | |
218 | * | |
219 | * input - membership to check for halfops | |
220 | * output - 1 if the user is halfopped, 0 if the user is not or halfop | |
221 | * is disabled. | |
222 | * side effects - | |
223 | * | |
224 | */ | |
225 | int | |
226 | is_halfop(struct membership *msptr) | |
227 | { | |
228 | if(!ConfigChannel.use_halfop) | |
229 | return 0; | |
230 | if(is_chmode_h(msptr)) | |
231 | return 1; | |
232 | else | |
233 | return 0; | |
234 | } | |
235 | ||
236 | /* is_owner() | |
237 | * | |
238 | * input - membership to check for owner | |
239 | * output - 1 if the user is an owner, 0 if the user is not or owner | |
240 | * is disabled. | |
241 | * side effects - | |
242 | * | |
243 | */ | |
244 | int | |
245 | is_owner(struct membership *msptr) | |
246 | { | |
247 | if(!ConfigChannel.use_owner) | |
248 | return 0; | |
249 | if(is_chmode_a(msptr)) | |
250 | return 1; | |
251 | else | |
252 | return 0; | |
253 | } | |
254 | ||
255 | /* is_any_op() | |
256 | * | |
257 | * input - membership to check for ops | |
258 | * output - 1 if the user is op, halfop, or owner, 0 elsewise | |
259 | * side effects - | |
260 | */ | |
261 | int | |
262 | is_any_op(struct membership *msptr) | |
263 | { | |
264 | if(is_chanop(msptr) || is_halfop(msptr) || is_owner(msptr)) | |
265 | return 1; | |
266 | else | |
267 | return 0; | |
268 | } | |
269 | ||
270 | /* is_chanop_voiced() | |
271 | * | |
272 | * input - memebership to check for status | |
273 | * output - 1 if the user is op, halfop, owner, or voice, 0 elsewise | |
274 | * side effects - | |
275 | */ | |
276 | int | |
277 | is_chanop_voiced(struct membership *msptr) | |
278 | { | |
279 | if(is_chanop(msptr) || is_voiced(msptr) || is_halfop(msptr) || is_owner(msptr)) | |
280 | return 1; | |
281 | else | |
282 | return 0; | |
283 | } | |
284 | ||
285 | /* can_kick_deop() | |
286 | * | |
287 | * input - two memeberships | |
288 | * output - 1 if the first memebership can kick/deop the second, 0 elsewise | |
289 | * side effects - | |
290 | */ | |
291 | int | |
292 | can_kick_deop(struct membership *source, struct membership *target) | |
293 | { | |
294 | if(is_chanop(source) && !is_owner(target)) | |
295 | return 1; | |
296 | else if(is_halfop(source) && !is_any_op(target)) | |
297 | return 1; | |
298 | else if(is_owner(source)) | |
299 | return 1; | |
300 | ||
301 | return 0; | |
302 | } | |
303 | ||
304 | /* add_user_to_channel() | |
305 | * | |
306 | * input - channel to add client to, client to add, channel flags | |
307 | * output - | |
308 | * side effects - user is added to channel | |
309 | */ | |
310 | void | |
311 | add_user_to_channel(struct Channel *chptr, struct Client *client_p, int flags) | |
312 | { | |
313 | struct membership *msptr; | |
314 | ||
315 | s_assert(client_p->user != NULL); | |
316 | if(client_p->user == NULL) | |
317 | return; | |
318 | ||
319 | msptr = rb_bh_alloc(member_heap); | |
320 | ||
321 | msptr->chptr = chptr; | |
322 | msptr->client_p = client_p; | |
323 | msptr->flags = flags; | |
324 | ||
325 | rb_dlinkAdd(msptr, &msptr->usernode, &client_p->user->channel); | |
326 | rb_dlinkAdd(msptr, &msptr->channode, &chptr->members); | |
327 | ||
328 | if(MyClient(client_p)) | |
329 | rb_dlinkAdd(msptr, &msptr->locchannode, &chptr->locmembers); | |
330 | } | |
331 | ||
332 | /* remove_user_from_channel() | |
333 | * | |
334 | * input - membership pointer to remove from channel | |
335 | * output - | |
336 | * side effects - membership (thus user) is removed from channel | |
337 | */ | |
338 | void | |
339 | remove_user_from_channel(struct membership *msptr) | |
340 | { | |
341 | struct Client *client_p; | |
342 | struct Channel *chptr; | |
343 | s_assert(msptr != NULL); | |
344 | if(msptr == NULL) | |
345 | return; | |
346 | ||
347 | client_p = msptr->client_p; | |
348 | chptr = msptr->chptr; | |
349 | ||
350 | rb_dlinkDelete(&msptr->usernode, &client_p->user->channel); | |
351 | rb_dlinkDelete(&msptr->channode, &chptr->members); | |
352 | ||
353 | if(client_p->servptr == &me) | |
354 | rb_dlinkDelete(&msptr->locchannode, &chptr->locmembers); | |
355 | ||
356 | if(!(chptr->mode.mode & MODE_PERMANENT) && rb_dlink_list_length(&chptr->members) <= 0) | |
357 | destroy_channel(chptr); | |
358 | ||
359 | rb_bh_free(member_heap, msptr); | |
360 | ||
361 | return; | |
362 | } | |
363 | ||
364 | /* remove_user_from_channels() | |
365 | * | |
366 | * input - user to remove from all channels | |
367 | * output - | |
368 | * side effects - user is removed from all channels | |
369 | */ | |
370 | void | |
371 | remove_user_from_channels(struct Client *client_p) | |
372 | { | |
373 | struct Channel *chptr; | |
374 | struct membership *msptr; | |
375 | rb_dlink_node *ptr; | |
376 | rb_dlink_node *next_ptr; | |
377 | ||
378 | if(client_p == NULL) | |
379 | return; | |
380 | ||
381 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->user->channel.head) | |
382 | { | |
383 | msptr = ptr->data; | |
384 | chptr = msptr->chptr; | |
385 | ||
386 | rb_dlinkDelete(&msptr->channode, &chptr->members); | |
387 | ||
388 | if(client_p->servptr == &me) | |
389 | rb_dlinkDelete(&msptr->locchannode, &chptr->locmembers); | |
390 | ||
391 | if(!(chptr->mode.mode & MODE_PERMANENT) && rb_dlink_list_length(&chptr->members) <= 0) | |
392 | destroy_channel(chptr); | |
393 | ||
394 | rb_bh_free(member_heap, msptr); | |
395 | } | |
396 | ||
397 | client_p->user->channel.head = client_p->user->channel.tail = NULL; | |
398 | client_p->user->channel.length = 0; | |
399 | } | |
400 | ||
401 | /* invalidate_bancache_user() | |
402 | * | |
403 | * input - user to invalidate ban cache for | |
404 | * output - | |
405 | * side effects - ban cache is invalidated for all memberships of that user | |
406 | * to be used after a nick change | |
407 | */ | |
408 | void | |
409 | invalidate_bancache_user(struct Client *client_p) | |
410 | { | |
411 | struct membership *msptr; | |
412 | rb_dlink_node *ptr; | |
413 | ||
414 | if(client_p == NULL) | |
415 | return; | |
416 | ||
417 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) | |
418 | { | |
419 | msptr = ptr->data; | |
420 | msptr->bants = 0; | |
421 | msptr->flags &= ~CHFL_BANNED; | |
422 | } | |
423 | } | |
424 | ||
425 | /* check_channel_name() | |
426 | * | |
427 | * input - channel name | |
428 | * output - 1 if valid channel name, else 0 | |
429 | * side effects - | |
430 | */ | |
431 | int | |
432 | check_channel_name(const char *name) | |
433 | { | |
434 | s_assert(name != NULL); | |
435 | if(name == NULL) | |
436 | return 0; | |
437 | ||
438 | for (; *name; ++name) | |
439 | { | |
440 | if(!IsChanChar(*name)) | |
441 | return 0; | |
442 | } | |
443 | ||
444 | return 1; | |
445 | } | |
446 | ||
447 | /* free_channel_list() | |
448 | * | |
449 | * input - rb_dlink list to free | |
450 | * output - | |
451 | * side effects - list of b/e/I modes is cleared | |
452 | */ | |
453 | void | |
454 | free_channel_list(rb_dlink_list * list) | |
455 | { | |
456 | rb_dlink_node *ptr; | |
457 | rb_dlink_node *next_ptr; | |
458 | struct Ban *actualBan; | |
459 | ||
460 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) | |
461 | { | |
462 | actualBan = ptr->data; | |
463 | free_ban(actualBan); | |
464 | } | |
465 | ||
466 | list->head = list->tail = NULL; | |
467 | list->length = 0; | |
468 | } | |
469 | ||
470 | /* destroy_channel() | |
471 | * | |
472 | * input - channel to destroy | |
473 | * output - | |
474 | * side effects - channel is obliterated | |
475 | */ | |
476 | void | |
477 | destroy_channel(struct Channel *chptr) | |
478 | { | |
479 | rb_dlink_node *ptr, *next_ptr; | |
480 | ||
481 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->invites.head) | |
482 | { | |
483 | del_invite(chptr, ptr->data); | |
484 | } | |
485 | ||
486 | /* free all bans/exceptions/denies */ | |
487 | free_channel_list(&chptr->banlist); | |
488 | free_channel_list(&chptr->exceptlist); | |
489 | free_channel_list(&chptr->invexlist); | |
490 | free_channel_list(&chptr->quietlist); | |
491 | ||
492 | /* Free the topic */ | |
493 | free_topic(chptr); | |
494 | ||
495 | rb_dlinkDelete(&chptr->node, &global_channel_list); | |
496 | del_from_channel_hash(chptr->chname, chptr); | |
497 | free_channel(chptr); | |
498 | } | |
499 | ||
500 | /* channel_pub_or_secret() | |
501 | * | |
502 | * input - channel | |
503 | * output - "=" if public, "@" if secret, else "*" | |
504 | * side effects - | |
505 | */ | |
506 | static const char * | |
507 | channel_pub_or_secret(struct Channel *chptr) | |
508 | { | |
509 | if(PubChannel(chptr)) | |
510 | return ("="); | |
511 | else if(SecretChannel(chptr)) | |
512 | return ("@"); | |
513 | return ("*"); | |
514 | } | |
515 | ||
516 | /* channel_member_names() | |
517 | * | |
518 | * input - channel to list, client to list to, show endofnames | |
519 | * output - | |
520 | * side effects - client is given list of users on channel | |
521 | */ | |
522 | void | |
523 | channel_member_names(struct Channel *chptr, struct Client *client_p, int show_eon) | |
524 | { | |
525 | struct membership *msptr; | |
526 | struct Client *target_p; | |
527 | rb_dlink_node *ptr; | |
528 | char lbuf[BUFSIZE]; | |
529 | char *t; | |
530 | int mlen; | |
531 | int tlen; | |
532 | int cur_len; | |
533 | int is_member; | |
534 | int stack = IsCapable(client_p, CLICAP_MULTI_PREFIX); | |
535 | ||
536 | if(ShowChannel(client_p, chptr)) | |
537 | { | |
538 | is_member = IsMember(client_p, chptr); | |
539 | ||
540 | cur_len = mlen = rb_sprintf(lbuf, form_str(RPL_NAMREPLY), | |
541 | me.name, client_p->name, | |
542 | channel_pub_or_secret(chptr), chptr->chname); | |
543 | ||
544 | t = lbuf + cur_len; | |
545 | ||
546 | RB_DLINK_FOREACH(ptr, chptr->members.head) | |
547 | { | |
548 | msptr = ptr->data; | |
549 | target_p = msptr->client_p; | |
550 | ||
551 | if(IsInvisible(target_p) && !is_member) | |
552 | continue; | |
553 | ||
554 | /* space, possible "@+" prefix */ | |
555 | if(cur_len + strlen(target_p->name) + 3 >= BUFSIZE - 3) | |
556 | { | |
557 | *(t - 1) = '\0'; | |
558 | sendto_one(client_p, "%s", lbuf); | |
559 | cur_len = mlen; | |
560 | t = lbuf + mlen; | |
561 | } | |
562 | ||
563 | tlen = rb_sprintf(t, "%s%s ", find_channel_status(msptr, stack), | |
564 | target_p->name); | |
565 | ||
566 | cur_len += tlen; | |
567 | t += tlen; | |
568 | } | |
569 | ||
570 | /* The old behaviour here was to always output our buffer, | |
571 | * even if there are no clients we can show. This happens | |
572 | * when a client does "NAMES" with no parameters, and all | |
573 | * the clients on a -sp channel are +i. I dont see a good | |
574 | * reason for keeping that behaviour, as it just wastes | |
575 | * bandwidth. --anfl | |
576 | */ | |
577 | if(cur_len != mlen) | |
578 | { | |
579 | *(t - 1) = '\0'; | |
580 | sendto_one(client_p, "%s", lbuf); | |
581 | } | |
582 | } | |
583 | ||
584 | if(show_eon) | |
585 | sendto_one(client_p, form_str(RPL_ENDOFNAMES), | |
586 | me.name, client_p->name, chptr->chname); | |
587 | } | |
588 | ||
589 | /* del_invite() | |
590 | * | |
591 | * input - channel to remove invite from, client to remove | |
592 | * output - | |
593 | * side effects - user is removed from invite list, if exists | |
594 | */ | |
595 | void | |
596 | del_invite(struct Channel *chptr, struct Client *who) | |
597 | { | |
598 | rb_dlinkFindDestroy(who, &chptr->invites); | |
599 | rb_dlinkFindDestroy(chptr, &who->user->invited); | |
600 | } | |
601 | ||
602 | /* is_banned() | |
603 | * | |
604 | * input - channel to check bans for, user to check bans against | |
605 | * optional prebuilt buffers | |
606 | * output - 1 if banned, else 0 | |
607 | * side effects - | |
608 | */ | |
609 | int | |
610 | is_banned(struct Channel *chptr, struct Client *who, struct membership *msptr, | |
611 | const char *s, const char *s2) | |
612 | { | |
613 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
614 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
615 | char src_althost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
616 | char *s3 = NULL; | |
617 | rb_dlink_node *ptr; | |
618 | struct Ban *actualBan = NULL; | |
619 | struct Ban *actualExcept = NULL; | |
620 | ||
621 | if(!MyClient(who)) | |
622 | return 0; | |
623 | ||
624 | /* if the buffers havent been built, do it here */ | |
625 | if(s == NULL) | |
626 | { | |
627 | rb_sprintf(src_host, "%s!%s@%s", who->name, who->username, who->host); | |
628 | rb_sprintf(src_iphost, "%s!%s@%s", who->name, who->username, who->sockhost); | |
629 | ||
630 | s = src_host; | |
631 | s2 = src_iphost; | |
632 | } | |
633 | if(who->localClient->mangledhost != NULL) | |
634 | { | |
635 | /* if host mangling mode enabled, also check their real host */ | |
636 | if(!strcmp(who->host, who->localClient->mangledhost)) | |
637 | { | |
638 | rb_sprintf(src_althost, "%s!%s@%s", who->name, who->username, who->orighost); | |
639 | s3 = src_althost; | |
640 | } | |
641 | /* if host mangling mode not enabled and no other spoof, | |
642 | * also check the mangled form of their host */ | |
643 | else if (!IsDynSpoof(who)) | |
644 | { | |
645 | rb_sprintf(src_althost, "%s!%s@%s", who->name, who->username, who->localClient->mangledhost); | |
646 | s3 = src_althost; | |
647 | } | |
648 | } | |
649 | ||
650 | RB_DLINK_FOREACH(ptr, chptr->banlist.head) | |
651 | { | |
652 | actualBan = ptr->data; | |
653 | if(match(actualBan->banstr, s) || | |
654 | match(actualBan->banstr, s2) || | |
655 | match_cidr(actualBan->banstr, s2) || | |
656 | match_extban(actualBan->banstr, who, chptr, CHFL_BAN) || | |
657 | (s3 != NULL && match(actualBan->banstr, s3))) | |
658 | break; | |
659 | else | |
660 | actualBan = NULL; | |
661 | } | |
662 | ||
663 | if((actualBan != NULL) && ConfigChannel.use_except) | |
664 | { | |
665 | RB_DLINK_FOREACH(ptr, chptr->exceptlist.head) | |
666 | { | |
667 | actualExcept = ptr->data; | |
668 | ||
669 | /* theyre exempted.. */ | |
670 | if(match(actualExcept->banstr, s) || | |
671 | match(actualExcept->banstr, s2) || | |
672 | match_cidr(actualExcept->banstr, s2) || | |
673 | match_extban(actualExcept->banstr, who, chptr, CHFL_EXCEPTION) || | |
674 | (s3 != NULL && match(actualExcept->banstr, s3))) | |
675 | { | |
676 | /* cache the fact theyre not banned */ | |
677 | if(msptr != NULL) | |
678 | { | |
679 | msptr->bants = chptr->bants; | |
680 | msptr->flags &= ~CHFL_BANNED; | |
681 | } | |
682 | ||
683 | return CHFL_EXCEPTION; | |
684 | } | |
685 | } | |
686 | } | |
687 | ||
688 | /* cache the banned/not banned status */ | |
689 | if(msptr != NULL) | |
690 | { | |
691 | msptr->bants = chptr->bants; | |
692 | ||
693 | if(actualBan != NULL) | |
694 | { | |
695 | msptr->flags |= CHFL_BANNED; | |
696 | return CHFL_BAN; | |
697 | } | |
698 | else | |
699 | { | |
700 | msptr->flags &= ~CHFL_BANNED; | |
701 | return 0; | |
702 | } | |
703 | } | |
704 | ||
705 | return ((actualBan ? CHFL_BAN : 0)); | |
706 | } | |
707 | ||
708 | /* is_quieted() | |
709 | * | |
710 | * input - channel to check bans for, user to check bans against | |
711 | * optional prebuilt buffers | |
712 | * output - 1 if banned, else 0 | |
713 | * side effects - | |
714 | */ | |
715 | int | |
716 | is_quieted(struct Channel *chptr, struct Client *who, struct membership *msptr, | |
717 | const char *s, const char *s2) | |
718 | { | |
719 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
720 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
721 | char src_althost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
722 | char *s3 = NULL; | |
723 | rb_dlink_node *ptr; | |
724 | struct Ban *actualBan = NULL; | |
725 | struct Ban *actualExcept = NULL; | |
726 | ||
727 | if(!MyClient(who)) | |
728 | return 0; | |
729 | ||
730 | /* if the buffers havent been built, do it here */ | |
731 | if(s == NULL) | |
732 | { | |
733 | rb_sprintf(src_host, "%s!%s@%s", who->name, who->username, who->host); | |
734 | rb_sprintf(src_iphost, "%s!%s@%s", who->name, who->username, who->sockhost); | |
735 | ||
736 | s = src_host; | |
737 | s2 = src_iphost; | |
738 | } | |
739 | if(who->localClient->mangledhost != NULL) | |
740 | { | |
741 | /* if host mangling mode enabled, also check their real host */ | |
742 | if(!strcmp(who->host, who->localClient->mangledhost)) | |
743 | { | |
744 | rb_sprintf(src_althost, "%s!%s@%s", who->name, who->username, who->orighost); | |
745 | s3 = src_althost; | |
746 | } | |
747 | /* if host mangling mode not enabled and no other spoof, | |
748 | * also check the mangled form of their host */ | |
749 | else if (!IsDynSpoof(who)) | |
750 | { | |
751 | rb_sprintf(src_althost, "%s!%s@%s", who->name, who->username, who->localClient->mangledhost); | |
752 | s3 = src_althost; | |
753 | } | |
754 | } | |
755 | ||
756 | RB_DLINK_FOREACH(ptr, chptr->quietlist.head) | |
757 | { | |
758 | actualBan = ptr->data; | |
759 | if(match(actualBan->banstr, s) || | |
760 | match(actualBan->banstr, s2) || | |
761 | match_cidr(actualBan->banstr, s2) || | |
762 | match_extban(actualBan->banstr, who, chptr, CHFL_QUIET) || | |
763 | (s3 != NULL && match(actualBan->banstr, s3))) | |
764 | break; | |
765 | else | |
766 | actualBan = NULL; | |
767 | } | |
768 | ||
769 | if((actualBan != NULL) && ConfigChannel.use_except) | |
770 | { | |
771 | RB_DLINK_FOREACH(ptr, chptr->exceptlist.head) | |
772 | { | |
773 | actualExcept = ptr->data; | |
774 | ||
775 | /* theyre exempted.. */ | |
776 | if(match(actualExcept->banstr, s) || | |
777 | match(actualExcept->banstr, s2) || | |
778 | match_cidr(actualExcept->banstr, s2) || | |
779 | match_extban(actualExcept->banstr, who, chptr, CHFL_EXCEPTION) || | |
780 | (s3 != NULL && match(actualExcept->banstr, s3))) | |
781 | { | |
782 | /* cache the fact theyre not banned */ | |
783 | if(msptr != NULL) | |
784 | { | |
785 | msptr->bants = chptr->bants; | |
786 | msptr->flags &= ~CHFL_BANNED; | |
787 | } | |
788 | ||
789 | return CHFL_EXCEPTION; | |
790 | } | |
791 | } | |
792 | } | |
793 | ||
794 | /* cache the banned/not banned status */ | |
795 | if(msptr != NULL) | |
796 | { | |
797 | msptr->bants = chptr->bants; | |
798 | ||
799 | if(actualBan != NULL) | |
800 | { | |
801 | msptr->flags |= CHFL_BANNED; | |
802 | return CHFL_BAN; | |
803 | } | |
804 | else | |
805 | { | |
806 | msptr->flags &= ~CHFL_BANNED; | |
807 | return 0; | |
808 | } | |
809 | } | |
810 | ||
811 | return ((actualBan ? CHFL_BAN : 0)); | |
812 | } | |
813 | ||
814 | /* can_join() | |
815 | * | |
816 | * input - client to check, channel to check for, key | |
817 | * output - reason for not being able to join, else 0 | |
818 | * side effects - | |
819 | */ | |
820 | int | |
821 | can_join(struct Client *source_p, struct Channel *chptr, char *key) | |
822 | { | |
823 | rb_dlink_node *invite = NULL; | |
824 | rb_dlink_node *ptr; | |
825 | struct Ban *invex = NULL; | |
826 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
827 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
828 | char src_althost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
829 | int use_althost = 0; | |
830 | int i = 0; | |
831 | hook_data_channel moduledata; | |
832 | struct Metadata *md; | |
833 | struct DictionaryIter iter; | |
834 | char *text = rb_strdup(""); | |
835 | ||
836 | s_assert(source_p->localClient != NULL); | |
837 | ||
838 | if(IsOverride(source_p)) | |
839 | return 0; | |
840 | ||
841 | rb_sprintf(src_host, "%s!%s@%s", source_p->name, source_p->username, source_p->host); | |
842 | rb_sprintf(src_iphost, "%s!%s@%s", source_p->name, source_p->username, source_p->sockhost); | |
843 | if(source_p->localClient->mangledhost != NULL) | |
844 | { | |
845 | /* if host mangling mode enabled, also check their real host */ | |
846 | if(!strcmp(source_p->host, source_p->localClient->mangledhost)) | |
847 | { | |
848 | rb_sprintf(src_althost, "%s!%s@%s", source_p->name, source_p->username, source_p->orighost); | |
849 | use_althost = 1; | |
850 | } | |
851 | /* if host mangling mode not enabled and no other spoof, | |
852 | * also check the mangled form of their host */ | |
853 | else if (!IsDynSpoof(source_p)) | |
854 | { | |
855 | rb_sprintf(src_althost, "%s!%s@%s", source_p->name, source_p->username, source_p->localClient->mangledhost); | |
856 | use_althost = 1; | |
857 | } | |
858 | } | |
859 | ||
860 | if((is_banned(chptr, source_p, NULL, src_host, src_iphost)) == CHFL_BAN) | |
861 | return (ERR_BANNEDFROMCHAN); | |
862 | ||
863 | rb_sprintf(text, "K%s",source_p->name); | |
864 | ||
865 | if(md = channel_metadata_find(chptr, text)) | |
866 | { | |
867 | if(md->timevalue + ConfigChannel.kick_no_rejoin_time > rb_current_time()) | |
868 | { | |
869 | return ERR_KICKNOREJOIN; | |
870 | } | |
871 | /* cleanup the channel's kicknorejoin metadata. */ | |
872 | DICTIONARY_FOREACH(md, &iter, chptr->metadata) | |
873 | { | |
874 | text = rb_strdup(md->name); | |
875 | if((text[0] == 'K') && (md->timevalue + ConfigChannel.kick_no_rejoin_time > rb_current_time())) | |
876 | channel_metadata_delete(chptr, md->name, 1); | |
877 | } | |
878 | ||
879 | } | |
880 | ||
881 | if(chptr->mode.mode & MODE_INVITEONLY) | |
882 | { | |
883 | RB_DLINK_FOREACH(invite, source_p->user->invited.head) | |
884 | { | |
885 | if(invite->data == chptr) | |
886 | break; | |
887 | } | |
888 | if(invite == NULL) | |
889 | { | |
890 | if(!ConfigChannel.use_invex) | |
891 | return (ERR_INVITEONLYCHAN); | |
892 | RB_DLINK_FOREACH(ptr, chptr->invexlist.head) | |
893 | { | |
894 | invex = ptr->data; | |
895 | if(match(invex->banstr, src_host) | |
896 | || match(invex->banstr, src_iphost) | |
897 | || match_cidr(invex->banstr, src_iphost) | |
898 | || match_extban(invex->banstr, source_p, chptr, CHFL_INVEX) | |
899 | || (use_althost && match(invex->banstr, src_althost))) | |
900 | break; | |
901 | } | |
902 | if(ptr == NULL) | |
903 | return (ERR_INVITEONLYCHAN); | |
904 | } | |
905 | } | |
906 | ||
907 | if(*chptr->mode.key && (EmptyString(key) || irccmp(chptr->mode.key, key))) | |
908 | return (ERR_BADCHANNELKEY); | |
909 | ||
910 | if(chptr->mode.limit && | |
911 | rb_dlink_list_length(&chptr->members) >= (unsigned long) chptr->mode.limit) | |
912 | i = ERR_CHANNELISFULL; | |
913 | if(chptr->mode.mode & MODE_REGONLY && EmptyString(source_p->user->suser)) | |
914 | i = ERR_NEEDREGGEDNICK; | |
915 | /* join throttling stuff --nenolod */ | |
916 | else if(chptr->mode.join_num > 0 && chptr->mode.join_time > 0) | |
917 | { | |
918 | if ((rb_current_time() - chptr->join_delta <= | |
919 | chptr->mode.join_time) && (chptr->join_count >= | |
920 | chptr->mode.join_num)) | |
921 | i = ERR_THROTTLE; | |
922 | } | |
923 | ||
924 | /* allow /invite to override +l/+r/+j also -- jilles */ | |
925 | if (i != 0 && invite == NULL) | |
926 | { | |
927 | RB_DLINK_FOREACH(invite, source_p->user->invited.head) | |
928 | { | |
929 | if(invite->data == chptr) | |
930 | break; | |
931 | } | |
932 | if (invite == NULL) | |
933 | return i; | |
934 | } | |
935 | ||
936 | moduledata.client = source_p; | |
937 | moduledata.chptr = chptr; | |
938 | moduledata.approved = 0; | |
939 | ||
940 | call_hook(h_can_join, &moduledata); | |
941 | ||
942 | return moduledata.approved; | |
943 | } | |
944 | ||
945 | /* can_send() | |
946 | * | |
947 | * input - user to check in channel, membership pointer | |
948 | * output - whether can explicitly send or not, else CAN_SEND_NONOP | |
949 | * side effects - | |
950 | */ | |
951 | int | |
952 | can_send(struct Channel *chptr, struct Client *source_p, struct membership *msptr) | |
953 | { | |
954 | if(IsServer(source_p) || IsService(source_p)) | |
955 | return CAN_SEND_OPV; | |
956 | ||
957 | if(MyClient(source_p) && hash_find_resv(chptr->chname) && | |
958 | !IsOper(source_p) && !IsExemptResv(source_p)) | |
959 | return CAN_SEND_NO; | |
960 | ||
961 | if(msptr == NULL) | |
962 | { | |
963 | msptr = find_channel_membership(chptr, source_p); | |
964 | ||
965 | if(msptr == NULL) | |
966 | { | |
967 | /* if its +m or +n and theyre not in the channel, | |
968 | * they cant send. we dont check bans here because | |
969 | * theres no possibility of caching them --fl | |
970 | */ | |
971 | if(chptr->mode.mode & MODE_NOPRIVMSGS || chptr->mode.mode & MODE_MODERATED) | |
972 | return CAN_SEND_NO; | |
973 | else | |
974 | return CAN_SEND_NONOP; | |
975 | } | |
976 | } | |
977 | ||
978 | if(is_chanop_voiced(msptr)) | |
979 | return CAN_SEND_OPV; | |
980 | ||
981 | if(IsOverride(source_p)) | |
982 | return CAN_SEND_NONOP; | |
983 | ||
984 | if(chptr->mode.mode & MODE_MODERATED) | |
985 | return CAN_SEND_NO; | |
986 | ||
987 | if(MyClient(source_p)) | |
988 | { | |
989 | /* cached can_send */ | |
990 | if(msptr->bants == chptr->bants) | |
991 | { | |
992 | if(can_send_banned(msptr)) | |
993 | return CAN_SEND_NO; | |
994 | } | |
995 | else if(is_banned(chptr, source_p, msptr, NULL, NULL) == CHFL_BAN | |
996 | || is_quieted(chptr, source_p, msptr, NULL, NULL) == CHFL_BAN) | |
997 | return CAN_SEND_NO; | |
998 | } | |
999 | ||
1000 | return CAN_SEND_NONOP; | |
1001 | } | |
1002 | ||
1003 | /* find_bannickchange_channel() | |
1004 | * Input: client to check | |
1005 | * Output: channel preventing nick change | |
1006 | */ | |
1007 | struct Channel * | |
1008 | find_bannickchange_channel(struct Client *client_p) | |
1009 | { | |
1010 | struct Channel *chptr; | |
1011 | struct membership *msptr; | |
1012 | rb_dlink_node *ptr; | |
1013 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
1014 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
1015 | ||
1016 | if (!MyClient(client_p) || IsOverride(client_p)) | |
1017 | return NULL; | |
1018 | ||
1019 | rb_sprintf(src_host, "%s!%s@%s", client_p->name, client_p->username, client_p->host); | |
1020 | rb_sprintf(src_iphost, "%s!%s@%s", client_p->name, client_p->username, client_p->sockhost); | |
1021 | ||
1022 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) | |
1023 | { | |
1024 | msptr = ptr->data; | |
1025 | chptr = msptr->chptr; | |
1026 | if (is_chanop_voiced(msptr)) | |
1027 | continue; | |
1028 | /* cached can_send */ | |
1029 | if (msptr->bants == chptr->bants) | |
1030 | { | |
1031 | if (can_send_banned(msptr)) | |
1032 | return chptr; | |
1033 | } | |
1034 | else if (is_banned(chptr, client_p, msptr, src_host, src_iphost) == CHFL_BAN | |
1035 | || is_quieted(chptr, client_p, msptr, src_host, src_iphost) == CHFL_BAN) | |
1036 | return chptr; | |
1037 | } | |
1038 | return NULL; | |
1039 | } | |
1040 | ||
1041 | /* find_nonickchange_channel() | |
1042 | * Input: client to check | |
1043 | * Output: channel preventing nick change | |
1044 | */ | |
1045 | struct Channel * | |
1046 | find_nonickchange_channel(struct Client *client_p) | |
1047 | { | |
1048 | struct Channel *chptr; | |
1049 | struct membership *msptr; | |
1050 | rb_dlink_node *ptr; | |
1051 | ||
1052 | if (!MyClient(client_p)) | |
1053 | return NULL; | |
1054 | ||
1055 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) | |
1056 | { | |
1057 | msptr = ptr->data; | |
1058 | chptr = msptr->chptr; | |
1059 | if (chptr->mode.mode & MODE_NONICK && (!ConfigChannel.exempt_cmode_N || !is_any_op(msptr))) | |
1060 | return chptr; | |
1061 | } | |
1062 | return NULL; | |
1063 | } | |
1064 | ||
1065 | /* void check_spambot_warning(struct Client *source_p) | |
1066 | * Input: Client to check, channel name or NULL if this is a part. | |
1067 | * Output: none | |
1068 | * Side-effects: Updates the client's oper_warn_count_down, warns the | |
1069 | * IRC operators if necessary, and updates join_leave_countdown as | |
1070 | * needed. | |
1071 | */ | |
1072 | void | |
1073 | check_spambot_warning(struct Client *source_p, const char *name) | |
1074 | { | |
1075 | int t_delta; | |
1076 | int decrement_count; | |
1077 | if((GlobalSetOptions.spam_num && | |
1078 | (source_p->localClient->join_leave_count >= GlobalSetOptions.spam_num))) | |
1079 | { | |
1080 | if(source_p->localClient->oper_warn_count_down > 0) | |
1081 | source_p->localClient->oper_warn_count_down--; | |
1082 | else | |
1083 | source_p->localClient->oper_warn_count_down = 0; | |
1084 | if(source_p->localClient->oper_warn_count_down == 0 && | |
1085 | name != NULL) | |
1086 | { | |
1087 | /* Its already known as a possible spambot */ | |
1088 | sendto_realops_snomask(SNO_BOTS, L_NETWIDE, | |
1089 | "User %s (%s@%s) trying to join %s is a possible spambot", | |
1090 | source_p->name, | |
1091 | source_p->username, source_p->orighost, name); | |
1092 | source_p->localClient->oper_warn_count_down = OPER_SPAM_COUNTDOWN; | |
1093 | } | |
1094 | } | |
1095 | else | |
1096 | { | |
1097 | if((t_delta = | |
1098 | (rb_current_time() - source_p->localClient->last_leave_time)) > | |
1099 | JOIN_LEAVE_COUNT_EXPIRE_TIME) | |
1100 | { | |
1101 | decrement_count = (t_delta / JOIN_LEAVE_COUNT_EXPIRE_TIME); | |
1102 | if(name != NULL) | |
1103 | ; | |
1104 | else if(decrement_count > source_p->localClient->join_leave_count) | |
1105 | source_p->localClient->join_leave_count = 0; | |
1106 | else | |
1107 | source_p->localClient->join_leave_count -= decrement_count; | |
1108 | } | |
1109 | else | |
1110 | { | |
1111 | if((rb_current_time() - | |
1112 | (source_p->localClient->last_join_time)) < GlobalSetOptions.spam_time) | |
1113 | { | |
1114 | /* oh, its a possible spambot */ | |
1115 | source_p->localClient->join_leave_count++; | |
1116 | } | |
1117 | } | |
1118 | if(name != NULL) | |
1119 | source_p->localClient->last_join_time = rb_current_time(); | |
1120 | else | |
1121 | source_p->localClient->last_leave_time = rb_current_time(); | |
1122 | } | |
1123 | } | |
1124 | ||
1125 | /* check_splitmode() | |
1126 | * | |
1127 | * input - | |
1128 | * output - | |
1129 | * side effects - compares usercount and servercount against their split | |
1130 | * values and adjusts splitmode accordingly | |
1131 | */ | |
1132 | void | |
1133 | check_splitmode(void *unused) | |
1134 | { | |
1135 | if(splitchecking && (ConfigChannel.no_join_on_split || ConfigChannel.no_create_on_split)) | |
1136 | { | |
1137 | /* not split, we're being asked to check now because someone | |
1138 | * has left | |
1139 | */ | |
1140 | if(!splitmode) | |
1141 | { | |
1142 | if(eob_count < split_servers || Count.total < split_users) | |
1143 | { | |
1144 | splitmode = 1; | |
1145 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1146 | "Network split, activating splitmode"); | |
1147 | check_splitmode_ev = rb_event_addish("check_splitmode", check_splitmode, NULL, 2); | |
1148 | } | |
1149 | } | |
1150 | /* in splitmode, check whether its finished */ | |
1151 | else if(eob_count >= split_servers && Count.total >= split_users) | |
1152 | { | |
1153 | splitmode = 0; | |
1154 | ||
1155 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1156 | "Network rejoined, deactivating splitmode"); | |
1157 | ||
1158 | rb_event_delete(check_splitmode_ev); | |
1159 | check_splitmode_ev = NULL; | |
1160 | } | |
1161 | } | |
1162 | } | |
1163 | ||
1164 | ||
1165 | /* allocate_topic() | |
1166 | * | |
1167 | * input - channel to allocate topic for | |
1168 | * output - 1 on success, else 0 | |
1169 | * side effects - channel gets a topic allocated | |
1170 | */ | |
1171 | static void | |
1172 | allocate_topic(struct Channel *chptr) | |
1173 | { | |
1174 | void *ptr; | |
1175 | ||
1176 | if(chptr == NULL) | |
1177 | return; | |
1178 | ||
1179 | ptr = rb_bh_alloc(topic_heap); | |
1180 | ||
1181 | /* Basically we allocate one large block for the topic and | |
1182 | * the topic info. We then split it up into two and shove it | |
1183 | * in the chptr | |
1184 | */ | |
1185 | chptr->topic = ptr; | |
1186 | chptr->topic_info = (char *) ptr + TOPICLEN + 1; | |
1187 | *chptr->topic = '\0'; | |
1188 | *chptr->topic_info = '\0'; | |
1189 | } | |
1190 | ||
1191 | /* free_topic() | |
1192 | * | |
1193 | * input - channel which has topic to free | |
1194 | * output - | |
1195 | * side effects - channels topic is free'd | |
1196 | */ | |
1197 | static void | |
1198 | free_topic(struct Channel *chptr) | |
1199 | { | |
1200 | void *ptr; | |
1201 | ||
1202 | if(chptr == NULL || chptr->topic == NULL) | |
1203 | return; | |
1204 | ||
1205 | /* This is safe for now - If you change allocate_topic you | |
1206 | * MUST change this as well | |
1207 | */ | |
1208 | ptr = chptr->topic; | |
1209 | rb_bh_free(topic_heap, ptr); | |
1210 | chptr->topic = NULL; | |
1211 | chptr->topic_info = NULL; | |
1212 | } | |
1213 | ||
1214 | /* set_channel_topic() | |
1215 | * | |
1216 | * input - channel, topic to set, topic info and topic ts | |
1217 | * output - | |
1218 | * side effects - channels topic, topic info and TS are set. | |
1219 | */ | |
1220 | void | |
1221 | set_channel_topic(struct Channel *chptr, const char *topic, const char *topic_info, time_t topicts) | |
1222 | { | |
1223 | if(strlen(topic) > 0) | |
1224 | { | |
1225 | if(chptr->topic == NULL) | |
1226 | allocate_topic(chptr); | |
1227 | rb_strlcpy(chptr->topic, topic, TOPICLEN + 1); | |
1228 | rb_strlcpy(chptr->topic_info, topic_info, USERHOST_REPLYLEN); | |
1229 | chptr->topic_time = topicts; | |
1230 | } | |
1231 | else | |
1232 | { | |
1233 | if(chptr->topic != NULL) | |
1234 | free_topic(chptr); | |
1235 | chptr->topic_time = 0; | |
1236 | } | |
1237 | } | |
1238 | ||
1239 | /* has_common_channel() | |
1240 | * | |
1241 | * input - pointer to client | |
1242 | * - pointer to another client | |
1243 | * output - 1 if the two have a channel in common, 0 elsewise | |
1244 | * side effects - none | |
1245 | */ | |
1246 | int | |
1247 | has_common_channel(struct Client *client1, struct Client *client2) | |
1248 | { | |
1249 | rb_dlink_node *ptr; | |
1250 | ||
1251 | RB_DLINK_FOREACH(ptr, client1->user->channel.head) | |
1252 | { | |
1253 | if(IsMember(client2, ((struct membership *)ptr->data)->chptr)) | |
1254 | return 1; | |
1255 | } | |
1256 | return 0; | |
1257 | } | |
1258 | ||
1259 | /* channel_modes() | |
1260 | * | |
1261 | * inputs - pointer to channel | |
1262 | * - pointer to client | |
1263 | * output - string with simple modes | |
1264 | * side effects - result from previous calls overwritten | |
1265 | * | |
1266 | * Stolen from ShadowIRCd 4 --nenolod | |
1267 | */ | |
1268 | const char * | |
1269 | channel_modes(struct Channel *chptr, struct Client *client_p) | |
1270 | { | |
1271 | int i; | |
1272 | char buf1[BUFSIZE]; | |
1273 | char buf2[BUFSIZE]; | |
1274 | static char final[BUFSIZE]; | |
1275 | char *mbuf = buf1; | |
1276 | char *pbuf = buf2; | |
1277 | ||
1278 | *mbuf++ = '+'; | |
1279 | *pbuf = '\0'; | |
1280 | ||
1281 | for (i = 0; i < 256; i++) | |
1282 | { | |
1283 | if(chmode_table[i].set_func == chm_hidden && !IsOper(client_p) && IsClient(client_p)) | |
1284 | continue; | |
1285 | if(chptr->mode.mode & chmode_flags[i]) | |
1286 | *mbuf++ = i; | |
1287 | } | |
1288 | ||
1289 | if(chptr->mode.limit) | |
1290 | { | |
1291 | *mbuf++ = 'l'; | |
1292 | ||
1293 | if(!IsClient(client_p) || IsMember(client_p, chptr)) | |
1294 | pbuf += rb_sprintf(pbuf, " %d", chptr->mode.limit); | |
1295 | } | |
1296 | ||
1297 | if(*chptr->mode.key) | |
1298 | { | |
1299 | *mbuf++ = 'k'; | |
1300 | ||
1301 | if(pbuf > buf2 || !IsClient(client_p) || IsMember(client_p, chptr)) | |
1302 | pbuf += rb_sprintf(pbuf, " %s", chptr->mode.key); | |
1303 | } | |
1304 | ||
1305 | if(chptr->mode.join_num) | |
1306 | { | |
1307 | *mbuf++ = 'j'; | |
1308 | ||
1309 | if(pbuf > buf2 || !IsClient(client_p) || IsMember(client_p, chptr)) | |
1310 | pbuf += rb_sprintf(pbuf, " %d:%d", chptr->mode.join_num, | |
1311 | chptr->mode.join_time); | |
1312 | } | |
1313 | ||
1314 | if(*chptr->mode.forward && (ConfigChannel.use_forward || !IsClient(client_p))) | |
1315 | { | |
1316 | *mbuf++ = 'f'; | |
1317 | ||
1318 | if(pbuf > buf2 || !IsClient(client_p) || IsMember(client_p, chptr)) | |
1319 | pbuf += rb_sprintf(pbuf, " %s", chptr->mode.forward); | |
1320 | } | |
1321 | ||
1322 | *mbuf = '\0'; | |
1323 | ||
1324 | rb_strlcpy(final, buf1, sizeof final); | |
1325 | rb_strlcat(final, buf2, sizeof final); | |
1326 | return final; | |
1327 | } | |
1328 | ||
1329 | /* Now lets do some stuff to keep track of what combinations of | |
1330 | * servers exist... | |
1331 | * Note that the number of combinations doubles each time you add | |
1332 | * something to this list. Each one is only quick if no servers use that | |
1333 | * combination, but if the numbers get too high here MODE will get too | |
1334 | * slow. I suggest if you get more than 7 here, you consider getting rid | |
1335 | * of some and merging or something. If it wasn't for irc+cs we would | |
1336 | * probably not even need to bother about most of these, but unfortunately | |
1337 | * we do. -A1kmm | |
1338 | */ | |
1339 | ||
1340 | /* void init_chcap_usage_counts(void) | |
1341 | * | |
1342 | * Inputs - none | |
1343 | * Output - none | |
1344 | * Side-effects - Initialises the usage counts to zero. Fills in the | |
1345 | * chcap_yes and chcap_no combination tables. | |
1346 | */ | |
1347 | void | |
1348 | init_chcap_usage_counts(void) | |
1349 | { | |
1350 | unsigned long m, c, y, n; | |
1351 | ||
1352 | memset(chcap_combos, 0, sizeof(chcap_combos)); | |
1353 | ||
1354 | /* For every possible combination */ | |
1355 | for (m = 0; m < NCHCAP_COMBOS; m++) | |
1356 | { | |
1357 | /* Check each capab */ | |
1358 | for (c = y = n = 0; c < NCHCAPS; c++) | |
1359 | { | |
1360 | if((m & (1 << c)) == 0) | |
1361 | n |= channel_capabs[c]; | |
1362 | else | |
1363 | y |= channel_capabs[c]; | |
1364 | } | |
1365 | chcap_combos[m].cap_yes = y; | |
1366 | chcap_combos[m].cap_no = n; | |
1367 | } | |
1368 | } | |
1369 | ||
1370 | /* void set_chcap_usage_counts(struct Client *serv_p) | |
1371 | * Input: serv_p; The client whose capabs to register. | |
1372 | * Output: none | |
1373 | * Side-effects: Increments the usage counts for the correct capab | |
1374 | * combination. | |
1375 | */ | |
1376 | void | |
1377 | set_chcap_usage_counts(struct Client *serv_p) | |
1378 | { | |
1379 | int n; | |
1380 | ||
1381 | for (n = 0; n < NCHCAP_COMBOS; n++) | |
1382 | { | |
1383 | if(IsCapable(serv_p, chcap_combos[n].cap_yes) && | |
1384 | NotCapable(serv_p, chcap_combos[n].cap_no)) | |
1385 | { | |
1386 | chcap_combos[n].count++; | |
1387 | return; | |
1388 | } | |
1389 | } | |
1390 | ||
1391 | /* This should be impossible -A1kmm. */ | |
1392 | s_assert(0); | |
1393 | } | |
1394 | ||
1395 | /* void set_chcap_usage_counts(struct Client *serv_p) | |
1396 | * | |
1397 | * Inputs - serv_p; The client whose capabs to register. | |
1398 | * Output - none | |
1399 | * Side-effects - Decrements the usage counts for the correct capab | |
1400 | * combination. | |
1401 | */ | |
1402 | void | |
1403 | unset_chcap_usage_counts(struct Client *serv_p) | |
1404 | { | |
1405 | int n; | |
1406 | ||
1407 | for (n = 0; n < NCHCAP_COMBOS; n++) | |
1408 | { | |
1409 | if(IsCapable(serv_p, chcap_combos[n].cap_yes) && | |
1410 | NotCapable(serv_p, chcap_combos[n].cap_no)) | |
1411 | { | |
1412 | /* Hopefully capabs can't change dynamically or anything... */ | |
1413 | s_assert(chcap_combos[n].count > 0); | |
1414 | ||
1415 | if(chcap_combos[n].count > 0) | |
1416 | chcap_combos[n].count--; | |
1417 | return; | |
1418 | } | |
1419 | } | |
1420 | ||
1421 | /* This should be impossible -A1kmm. */ | |
1422 | s_assert(0); | |
1423 | } | |
1424 | ||
1425 | /* void send_cap_mode_changes(struct Client *client_p, | |
1426 | * struct Client *source_p, | |
1427 | * struct Channel *chptr, int cap, int nocap) | |
1428 | * Input: The client sending(client_p), the source client(source_p), | |
1429 | * the channel to send mode changes for(chptr) | |
1430 | * Output: None. | |
1431 | * Side-effects: Sends the appropriate mode changes to capable servers. | |
1432 | * | |
1433 | * Reverted back to my original design, except that we now keep a count | |
1434 | * of the number of servers which each combination as an optimisation, so | |
1435 | * the capabs combinations which are not needed are not worked out. -A1kmm | |
1436 | */ | |
1437 | void | |
1438 | send_cap_mode_changes(struct Client *client_p, struct Client *source_p, | |
1439 | struct Channel *chptr, struct ChModeChange mode_changes[], int mode_count) | |
1440 | { | |
1441 | static char modebuf[BUFSIZE]; | |
1442 | static char parabuf[BUFSIZE]; | |
1443 | int i, mbl, pbl, nc, mc, preflen, len; | |
1444 | char *pbuf; | |
1445 | const char *arg; | |
1446 | int dir; | |
1447 | int j; | |
1448 | int cap; | |
1449 | int nocap; | |
1450 | int arglen; | |
1451 | ||
1452 | /* Now send to servers... */ | |
1453 | for (j = 0; j < NCHCAP_COMBOS; j++) | |
1454 | { | |
1455 | if(chcap_combos[j].count == 0) | |
1456 | continue; | |
1457 | ||
1458 | mc = 0; | |
1459 | nc = 0; | |
1460 | pbl = 0; | |
1461 | parabuf[0] = 0; | |
1462 | pbuf = parabuf; | |
1463 | dir = MODE_QUERY; | |
1464 | ||
1465 | cap = chcap_combos[j].cap_yes; | |
1466 | nocap = chcap_combos[j].cap_no; | |
1467 | ||
1468 | mbl = preflen = rb_sprintf(modebuf, ":%s TMODE %ld %s ", | |
1469 | use_id(source_p), (long) chptr->channelts, | |
1470 | chptr->chname); | |
1471 | ||
1472 | /* loop the list of - modes we have */ | |
1473 | for (i = 0; i < mode_count; i++) | |
1474 | { | |
1475 | /* if they dont support the cap we need, or they do support a cap they | |
1476 | * cant have, then dont add it to the modebuf.. that way they wont see | |
1477 | * the mode | |
1478 | */ | |
1479 | if((mode_changes[i].letter == 0) || | |
1480 | ((cap & mode_changes[i].caps) != mode_changes[i].caps) | |
1481 | || ((nocap & mode_changes[i].nocaps) != mode_changes[i].nocaps)) | |
1482 | continue; | |
1483 | ||
1484 | if(!EmptyString(mode_changes[i].id)) | |
1485 | arg = mode_changes[i].id; | |
1486 | else | |
1487 | arg = mode_changes[i].arg; | |
1488 | ||
1489 | if(arg) | |
1490 | { | |
1491 | arglen = strlen(arg); | |
1492 | ||
1493 | /* dont even think about it! --fl */ | |
1494 | if(arglen > MODEBUFLEN - 5) | |
1495 | continue; | |
1496 | } | |
1497 | ||
1498 | /* if we're creeping past the buf size, we need to send it and make | |
1499 | * another line for the other modes | |
1500 | * XXX - this could give away server topology with uids being | |
1501 | * different lengths, but not much we can do, except possibly break | |
1502 | * them as if they were the longest of the nick or uid at all times, | |
1503 | * which even then won't work as we don't always know the uid -A1kmm. | |
1504 | */ | |
1505 | if(arg && ((mc == MAXMODEPARAMSSERV) || | |
1506 | ((mbl + pbl + arglen + 4) > (BUFSIZE - 3)))) | |
1507 | { | |
1508 | if(nc != 0) | |
1509 | sendto_server(client_p, chptr, cap, nocap, | |
1510 | "%s %s", modebuf, parabuf); | |
1511 | nc = 0; | |
1512 | mc = 0; | |
1513 | ||
1514 | mbl = preflen; | |
1515 | pbl = 0; | |
1516 | pbuf = parabuf; | |
1517 | parabuf[0] = 0; | |
1518 | dir = MODE_QUERY; | |
1519 | } | |
1520 | ||
1521 | if(dir != mode_changes[i].dir) | |
1522 | { | |
1523 | modebuf[mbl++] = (mode_changes[i].dir == MODE_ADD) ? '+' : '-'; | |
1524 | dir = mode_changes[i].dir; | |
1525 | } | |
1526 | ||
1527 | modebuf[mbl++] = mode_changes[i].letter; | |
1528 | modebuf[mbl] = 0; | |
1529 | nc++; | |
1530 | ||
1531 | if(arg != NULL) | |
1532 | { | |
1533 | len = rb_sprintf(pbuf, "%s ", arg); | |
1534 | pbuf += len; | |
1535 | pbl += len; | |
1536 | mc++; | |
1537 | } | |
1538 | } | |
1539 | ||
1540 | if(pbl && parabuf[pbl - 1] == ' ') | |
1541 | parabuf[pbl - 1] = 0; | |
1542 | ||
1543 | if(nc != 0) | |
1544 | sendto_server(client_p, chptr, cap, nocap, "%s %s", modebuf, parabuf); | |
1545 | } | |
1546 | } | |
1547 | ||
1548 | /* Check what we will forward to, without sending any notices to the user | |
1549 | * -- jilles | |
1550 | */ | |
1551 | struct Channel * | |
1552 | check_forward(struct Client *source_p, struct Channel *chptr, | |
1553 | char *key) | |
1554 | { | |
1555 | int depth = 0, i; | |
1556 | ||
1557 | /* User is +Q */ | |
1558 | if (IsNoForward(source_p)) | |
1559 | return NULL; | |
1560 | ||
1561 | while (depth < 16) | |
1562 | { | |
1563 | chptr = find_channel(chptr->mode.forward); | |
1564 | /* Can only forward to existing channels */ | |
1565 | if (chptr == NULL) | |
1566 | return NULL; | |
1567 | /* Already on there, show original error message */ | |
1568 | if (IsMember(source_p, chptr)) | |
1569 | return NULL; | |
1570 | /* Juped. Sending a warning notice would be unfair */ | |
1571 | if (hash_find_resv(chptr->chname)) | |
1572 | return NULL; | |
1573 | /* Don't forward to +Q channel */ | |
1574 | if (chptr->mode.mode & MODE_DISFORWARD) | |
1575 | return NULL; | |
1576 | i = can_join(source_p, chptr, key); | |
1577 | if (i == 0) | |
1578 | return chptr; | |
1579 | if (i != ERR_INVITEONLYCHAN && i != ERR_NEEDREGGEDNICK && i != ERR_THROTTLE && i != ERR_CHANNELISFULL) | |
1580 | return NULL; | |
1581 | depth++; | |
1582 | } | |
1583 | ||
1584 | return NULL; | |
1585 | } | |
1586 | ||
1587 | /* | |
1588 | * do_join_0 | |
1589 | * | |
1590 | * inputs - pointer to client doing join 0 | |
1591 | * output - NONE | |
1592 | * side effects - Use has decided to join 0. This is legacy | |
1593 | * from the days when channels were numbers not names. *sigh* | |
1594 | */ | |
1595 | void | |
1596 | do_join_0(struct Client *client_p, struct Client *source_p) | |
1597 | { | |
1598 | struct membership *msptr; | |
1599 | struct Channel *chptr = NULL; | |
1600 | rb_dlink_node *ptr; | |
1601 | ||
1602 | /* Finish the flood grace period... */ | |
1603 | if(MyClient(source_p) && !IsFloodDone(source_p)) | |
1604 | flood_endgrace(source_p); | |
1605 | ||
1606 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, ":%s JOIN 0", use_id(source_p)); | |
1607 | ||
1608 | while((ptr = source_p->user->channel.head)) | |
1609 | { | |
1610 | if(source_p->user->channel.head && MyConnect(source_p) && | |
1611 | !IsOper(source_p) && !IsExemptSpambot(source_p)) | |
1612 | check_spambot_warning(source_p, NULL); | |
1613 | ||
1614 | msptr = ptr->data; | |
1615 | chptr = msptr->chptr; | |
1616 | sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s PART %s", | |
1617 | source_p->name, | |
1618 | source_p->username, source_p->host, chptr->chname); | |
1619 | remove_user_from_channel(msptr); | |
1620 | } | |
1621 | } | |
1622 | ||
1623 | int | |
1624 | check_channel_name_loc(struct Client *source_p, const char *name) | |
1625 | { | |
1626 | const char *p; | |
1627 | ||
1628 | s_assert(name != NULL); | |
1629 | if(EmptyString(name)) | |
1630 | return 0; | |
1631 | ||
1632 | if(ConfigFileEntry.disable_fake_channels && !IsOper(source_p)) | |
1633 | { | |
1634 | for(p = name; *p; ++p) | |
1635 | { | |
1636 | if(!IsChanChar(*p) || IsFakeChanChar(*p)) | |
1637 | return 0; | |
1638 | } | |
1639 | } | |
1640 | else | |
1641 | { | |
1642 | for(p = name; *p; ++p) | |
1643 | { | |
1644 | if(!IsChanChar(*p)) | |
1645 | return 0; | |
1646 | } | |
1647 | } | |
1648 | ||
1649 | if(ConfigChannel.only_ascii_channels) | |
1650 | { | |
1651 | for(p = name; *p; ++p) | |
1652 | if(*p < 33 || *p > 126) | |
1653 | return 0; | |
1654 | } | |
1655 | ||
1656 | ||
1657 | return 1; | |
1658 | } | |
1659 | ||
1660 | void user_join(struct Client * client_p, struct Client * source_p, const char * channels, const char * keys) | |
1661 | { | |
1662 | static char jbuf[BUFSIZE]; | |
1663 | struct Channel *chptr = NULL; | |
1664 | struct ConfItem *aconf; | |
1665 | char *name; | |
1666 | char *key = NULL; | |
1667 | const char *modes; | |
1668 | int i, flags = 0; | |
1669 | char *p = NULL, *p2 = NULL; | |
1670 | char *chanlist; | |
1671 | char *mykey; | |
1672 | ||
1673 | jbuf[0] = '\0'; | |
1674 | ||
1675 | if(channels == NULL) | |
1676 | return; | |
1677 | ||
1678 | /* rebuild the list of channels theyre supposed to be joining. | |
1679 | * this code has a side effect of losing keys, but.. | |
1680 | */ | |
1681 | chanlist = LOCAL_COPY(channels); | |
1682 | for(name = rb_strtok_r(chanlist, ",", &p); name; name = rb_strtok_r(NULL, ",", &p)) | |
1683 | { | |
1684 | /* check the length and name of channel is ok */ | |
1685 | if(!check_channel_name_loc(source_p, name) || (strlen(name) > LOC_CHANNELLEN)) | |
1686 | { | |
1687 | sendto_one_numeric(source_p, ERR_BADCHANNAME, | |
1688 | form_str(ERR_BADCHANNAME), (unsigned char *) name); | |
1689 | continue; | |
1690 | } | |
1691 | ||
1692 | /* join 0 parts all channels */ | |
1693 | if(*name == '0' && (name[1] == ',' || name[1] == '\0') && name == chanlist) | |
1694 | { | |
1695 | (void) strcpy(jbuf, "0"); | |
1696 | continue; | |
1697 | } | |
1698 | ||
1699 | /* check it begins with # or &, and local chans are disabled */ | |
1700 | else if(!IsChannelName(name) || | |
1701 | ( !ConfigChannel.use_local_channels && name[0] == '&')) | |
1702 | { | |
1703 | sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, | |
1704 | form_str(ERR_NOSUCHCHANNEL), name); | |
1705 | continue; | |
1706 | } | |
1707 | ||
1708 | /* see if its resv'd */ | |
1709 | if(!IsExemptResv(source_p) && (aconf = hash_find_resv(name))) | |
1710 | { | |
1711 | sendto_one_numeric(source_p, ERR_BADCHANNAME, | |
1712 | form_str(ERR_BADCHANNAME), name); | |
1713 | ||
1714 | /* dont warn for opers */ | |
1715 | if(!IsExemptJupe(source_p) && !IsOper(source_p)) | |
1716 | sendto_realops_snomask(SNO_SPY, L_NETWIDE, | |
1717 | "User %s (%s@%s) is attempting to join locally juped channel %s (%s)", | |
1718 | source_p->name, source_p->username, | |
1719 | source_p->orighost, name, aconf->passwd); | |
1720 | /* dont update tracking for jupe exempt users, these | |
1721 | * are likely to be spamtrap leaves | |
1722 | */ | |
1723 | else if(IsExemptJupe(source_p)) | |
1724 | aconf->port--; | |
1725 | ||
1726 | continue; | |
1727 | } | |
1728 | ||
1729 | if(splitmode && !IsOper(source_p) && (*name != '&') && | |
1730 | ConfigChannel.no_join_on_split) | |
1731 | { | |
1732 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
1733 | me.name, source_p->name, name); | |
1734 | continue; | |
1735 | } | |
1736 | ||
1737 | if(*jbuf) | |
1738 | (void) strcat(jbuf, ","); | |
1739 | (void) rb_strlcat(jbuf, name, sizeof(jbuf)); | |
1740 | } | |
1741 | ||
1742 | if(keys != NULL) | |
1743 | { | |
1744 | mykey = LOCAL_COPY(keys); | |
1745 | key = rb_strtok_r(mykey, ",", &p2); | |
1746 | } | |
1747 | ||
1748 | for(name = rb_strtok_r(jbuf, ",", &p); name; | |
1749 | key = (key) ? rb_strtok_r(NULL, ",", &p2) : NULL, name = rb_strtok_r(NULL, ",", &p)) | |
1750 | { | |
1751 | hook_data_channel_activity hook_info; | |
1752 | ||
1753 | /* JOIN 0 simply parts all channels the user is in */ | |
1754 | if(*name == '0' && !atoi(name)) | |
1755 | { | |
1756 | if(source_p->user->channel.head == NULL) | |
1757 | continue; | |
1758 | ||
1759 | do_join_0(&me, source_p); | |
1760 | continue; | |
1761 | } | |
1762 | ||
1763 | /* look for the channel */ | |
1764 | if((chptr = find_channel(name)) != NULL) | |
1765 | { | |
1766 | if(IsMember(source_p, chptr)) | |
1767 | continue; | |
1768 | ||
1769 | flags = 0; | |
1770 | } | |
1771 | else | |
1772 | { | |
1773 | hook_data_client_approval moduledata; | |
1774 | ||
1775 | moduledata.client = source_p; | |
1776 | moduledata.approved = 0; | |
1777 | ||
1778 | call_hook(h_can_create_channel, &moduledata); | |
1779 | ||
1780 | if(moduledata.approved != 0) | |
1781 | { | |
1782 | sendto_one(source_p, form_str(moduledata.approved), | |
1783 | me.name, source_p->name, name); | |
1784 | continue; | |
1785 | } | |
1786 | ||
1787 | if(splitmode && !IsOper(source_p) && (*name != '&') && | |
1788 | ConfigChannel.no_create_on_split) | |
1789 | { | |
1790 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
1791 | me.name, source_p->name, name); | |
1792 | continue; | |
1793 | } | |
1794 | ||
1795 | flags = CHFL_CHANOP; | |
1796 | } | |
1797 | ||
1798 | if((rb_dlink_list_length(&source_p->user->channel) >= | |
1799 | (unsigned long) ConfigChannel.max_chans_per_user) && | |
1800 | (!IsOper(source_p) || | |
1801 | (rb_dlink_list_length(&source_p->user->channel) >= | |
1802 | (unsigned long) ConfigChannel.max_chans_per_user * 3))) | |
1803 | { | |
1804 | sendto_one(source_p, form_str(ERR_TOOMANYCHANNELS), | |
1805 | me.name, source_p->name, name); | |
1806 | return; | |
1807 | } | |
1808 | ||
1809 | if(chptr == NULL) /* If I already have a chptr, no point doing this */ | |
1810 | { | |
1811 | chptr = get_or_create_channel(source_p, name, NULL); | |
1812 | ||
1813 | if(chptr == NULL) | |
1814 | { | |
1815 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
1816 | me.name, source_p->name, name); | |
1817 | continue; | |
1818 | } | |
1819 | } | |
1820 | ||
1821 | /* can_join checks for +i key, bans etc */ | |
1822 | if((i = can_join(source_p, chptr, key))) | |
1823 | { | |
1824 | if ((i != ERR_NEEDREGGEDNICK && i != ERR_THROTTLE && i != ERR_INVITEONLYCHAN && i != ERR_CHANNELISFULL) || | |
1825 | (!ConfigChannel.use_forward || (chptr = check_forward(source_p, chptr, key)) == NULL)) | |
1826 | { | |
1827 | /* might be wrong, but is there any other better location for such? | |
1828 | * see extensions/chm_operonly.c for other comments on this | |
1829 | * -- dwr | |
1830 | */ | |
1831 | if(i != ERR_CUSTOM) | |
1832 | sendto_one(source_p, form_str(i), me.name, source_p->name, name); | |
1833 | ||
1834 | continue; | |
1835 | } | |
1836 | ||
1837 | sendto_one_numeric(source_p, ERR_LINKCHANNEL, form_str(ERR_LINKCHANNEL), name, chptr->chname); | |
1838 | } | |
1839 | ||
1840 | if(flags == 0 && | |
1841 | !IsOper(source_p) && !IsExemptSpambot(source_p)) | |
1842 | check_spambot_warning(source_p, name); | |
1843 | ||
1844 | /* add the user to the channel */ | |
1845 | add_user_to_channel(chptr, source_p, flags); | |
1846 | if (chptr->mode.join_num && | |
1847 | rb_current_time() - chptr->join_delta >= chptr->mode.join_time) | |
1848 | { | |
1849 | chptr->join_count = 0; | |
1850 | chptr->join_delta = rb_current_time(); | |
1851 | } | |
1852 | chptr->join_count++; | |
1853 | ||
1854 | /* we send the user their join here, because we could have to | |
1855 | * send a mode out next. | |
1856 | */ | |
1857 | sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s JOIN :%s", | |
1858 | source_p->name, | |
1859 | source_p->username, source_p->host, chptr->chname); | |
1860 | ||
1861 | /* its a new channel, set +nt and burst. */ | |
1862 | if(flags & CHFL_CHANOP) | |
1863 | { | |
1864 | chptr->channelts = rb_current_time(); | |
1865 | ||
1866 | /* autochanmodes stuff */ | |
1867 | if(ConfigChannel.autochanmodes) | |
1868 | { | |
1869 | char * ch; | |
1870 | for(ch = ConfigChannel.autochanmodes; *ch; *ch++) | |
1871 | { | |
1872 | chptr->mode.mode |= chmode_table[*ch].mode_type; | |
1873 | } | |
1874 | } | |
1875 | else | |
1876 | { | |
1877 | chptr->mode.mode |= MODE_TOPICLIMIT; | |
1878 | chptr->mode.mode |= MODE_NOPRIVMSGS; | |
1879 | } | |
1880 | ||
1881 | modes = channel_modes(chptr, &me); | |
1882 | ||
1883 | sendto_channel_local(ONLY_CHANOPS, chptr, ":%s MODE %s %s", | |
1884 | me.name, chptr->chname, modes); | |
1885 | ||
1886 | sendto_server(client_p, chptr, CAP_TS6, NOCAPS, | |
1887 | ":%s SJOIN %ld %s %s :@%s", | |
1888 | me.id, (long) chptr->channelts, | |
1889 | chptr->chname, modes, source_p->id); | |
1890 | } | |
1891 | else | |
1892 | { | |
1893 | sendto_server(client_p, chptr, CAP_TS6, NOCAPS, | |
1894 | ":%s JOIN %ld %s +", | |
1895 | use_id(source_p), (long) chptr->channelts, | |
1896 | chptr->chname); | |
1897 | } | |
1898 | ||
1899 | del_invite(chptr, source_p); | |
1900 | ||
1901 | if(chptr->topic != NULL) | |
1902 | { | |
1903 | sendto_one(source_p, form_str(RPL_TOPIC), me.name, | |
1904 | source_p->name, chptr->chname, chptr->topic); | |
1905 | ||
1906 | sendto_one(source_p, form_str(RPL_TOPICWHOTIME), | |
1907 | me.name, source_p->name, chptr->chname, | |
1908 | chptr->topic_info, chptr->topic_time); | |
1909 | } | |
1910 | ||
1911 | channel_member_names(chptr, source_p, 1); | |
1912 | ||
1913 | hook_info.client = source_p; | |
1914 | hook_info.chptr = chptr; | |
1915 | hook_info.key = key; | |
1916 | call_hook(h_channel_join, &hook_info); | |
1917 | } | |
1918 | ||
1919 | return; | |
1920 | } | |
1921 | ||
1922 | /* | |
1923 | * channel_metadata_add | |
1924 | * | |
1925 | * inputs - pointer to channel struct | |
1926 | * - name of metadata item you wish to add | |
1927 | * - value of metadata item | |
1928 | * - 1 if metadata should be propegated, 0 if not | |
1929 | * output - none | |
1930 | * side effects - metadata is added to the channel in question | |
1931 | * - metadata is propegated if propegate is set. | |
1932 | */ | |
1933 | struct Metadata * | |
1934 | channel_metadata_add(struct Channel *target, const char *name, const char *value, int propegate) | |
1935 | { | |
1936 | struct Metadata *md; | |
1937 | ||
1938 | md = rb_malloc(sizeof(struct Metadata)); | |
1939 | md->name = rb_strdup(name); | |
1940 | md->value = rb_strdup(value); | |
1941 | ||
1942 | irc_dictionary_add(target->metadata, md->name, md); | |
1943 | ||
1944 | if(propegate) | |
1945 | sendto_match_servs(&me, "*", CAP_ENCAP, NOCAPS, "ENCAP * METADATA ADD %s %s :%s", | |
1946 | target->chname, name, value); | |
1947 | ||
1948 | return md; | |
1949 | } | |
1950 | ||
1951 | /* | |
1952 | * channel_metadata_time_add | |
1953 | * | |
1954 | * inputs - pointer to channel struct | |
1955 | * - name of metadata item you wish to add | |
1956 | * - time_t you wish to add | |
1957 | * - value you wish to add | |
1958 | * output - none | |
1959 | * side effects - metadata is added to the channel in question | |
1960 | */ | |
1961 | struct Metadata * | |
1962 | channel_metadata_time_add(struct Channel *target, const char *name, time_t timevalue, const char *value) | |
1963 | { | |
1964 | struct Metadata *md; | |
1965 | ||
1966 | md = rb_malloc(sizeof(struct Metadata)); | |
1967 | md->name = rb_strdup(name); | |
1968 | md->value = rb_strdup(value); | |
1969 | md->timevalue = timevalue; | |
1970 | ||
1971 | irc_dictionary_add(target->metadata, md->name, md); | |
1972 | ||
1973 | return md; | |
1974 | } | |
1975 | ||
1976 | /* | |
1977 | * channel_metadata_delete | |
1978 | * | |
1979 | * inputs - pointer to channel struct | |
1980 | * - name of metadata item you wish to delete | |
1981 | * output - none | |
1982 | * side effects - metadata is deleted from the channel in question | |
1983 | * - deletion is propegated if propegate is set | |
1984 | */ | |
1985 | void | |
1986 | channel_metadata_delete(struct Channel *target, const char *name, int propegate) | |
1987 | { | |
1988 | struct Metadata *md = channel_metadata_find(target, name); | |
1989 | ||
1990 | if(!md) | |
1991 | return; | |
1992 | ||
1993 | irc_dictionary_delete(target->metadata, md->name); | |
1994 | ||
1995 | rb_free(md); | |
1996 | ||
1997 | if(propegate) | |
1998 | sendto_match_servs(&me, "*", CAP_ENCAP, NOCAPS, "ENCAP * METADATA DELETE %s %s", | |
1999 | target->chname, name); | |
2000 | } | |
2001 | ||
2002 | /* | |
2003 | * channel_metadata_find | |
2004 | * | |
2005 | * inputs - pointer to channel struct | |
2006 | * - name of metadata item you wish to read | |
2007 | * output - the requested metadata, if it exists, elsewise null. | |
2008 | * side effects - | |
2009 | */ | |
2010 | struct Metadata * | |
2011 | channel_metadata_find(struct Channel *target, const char *name) | |
2012 | { | |
2013 | if(!target) | |
2014 | return NULL; | |
2015 | ||
2016 | if(!target->metadata) | |
2017 | return NULL; | |
2018 | ||
2019 | return irc_dictionary_retrieve(target->metadata, name); | |
2020 | } | |
2021 | ||
2022 | /* | |
2023 | * channel_metadata_clear | |
2024 | * | |
2025 | * inputs - pointer to channel struct | |
2026 | * output - none | |
2027 | * side effects - metadata is cleared from the channel in question | |
2028 | */ | |
2029 | void | |
2030 | channel_metadata_clear(struct Channel *chptr) | |
2031 | { | |
2032 | struct Metadata *md; | |
2033 | struct DictionaryIter iter; | |
2034 | ||
2035 | DICTIONARY_FOREACH(md, &iter, chptr->metadata) | |
2036 | { | |
2037 | channel_metadata_delete(chptr, md->name, 0); | |
2038 | } | |
2039 | } |