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212380e3 | 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 | * | |
83294285 | 24 | * $Id: channel.c 3580 2007-11-07 23:45:14Z jilles $ |
212380e3 | 25 | */ |
26 | ||
27 | #include "stdinc.h" | |
212380e3 | 28 | #include "channel.h" |
fba62b01 | 29 | #include "chmode.h" |
212380e3 | 30 | #include "client.h" |
31 | #include "common.h" | |
32 | #include "hash.h" | |
33 | #include "hook.h" | |
13ae2f4b | 34 | #include "match.h" |
212380e3 | 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" | |
d3455e2c | 43 | #include "logger.h" |
3472ff3f | 44 | #include "packet.h" |
212380e3 | 45 | |
9813daca | 46 | struct config_channel_entry ConfigChannel; |
1a218aaf | 47 | rb_dlink_list global_channel_list; |
5475a932 VY |
48 | static rb_bh *channel_heap; |
49 | static rb_bh *ban_heap; | |
50 | static rb_bh *topic_heap; | |
51 | static rb_bh *member_heap; | |
52 | ||
212380e3 | 53 | static int channel_capabs[] = { CAP_EX, CAP_IE, |
54 | CAP_SERVICE, | |
55 | CAP_TS6 | |
56 | }; | |
57 | ||
58 | #define NCHCAPS (sizeof(channel_capabs)/sizeof(int)) | |
59 | #define NCHCAP_COMBOS (1 << NCHCAPS) | |
60 | ||
61 | static struct ChCapCombo chcap_combos[NCHCAP_COMBOS]; | |
62 | ||
63 | static void free_topic(struct Channel *chptr); | |
64 | ||
65 | static int h_can_join; | |
67b90240 JH |
66 | static int h_can_create_channel; |
67 | static int h_channel_join; | |
212380e3 | 68 | |
69 | /* init_channels() | |
70 | * | |
71 | * input - | |
72 | * output - | |
73 | * side effects - initialises the various blockheaps | |
74 | */ | |
75 | void | |
76 | init_channels(void) | |
77 | { | |
dd9be678 WP |
78 | channel_heap = rb_bh_create(sizeof(struct Channel), CHANNEL_HEAP_SIZE, "channel_heap"); |
79 | ban_heap = rb_bh_create(sizeof(struct Ban), BAN_HEAP_SIZE, "ban_heap"); | |
80 | topic_heap = rb_bh_create(TOPICLEN + 1 + USERHOST_REPLYLEN, TOPIC_HEAP_SIZE, "topic_heap"); | |
81 | member_heap = rb_bh_create(sizeof(struct membership), MEMBER_HEAP_SIZE, "member_heap"); | |
212380e3 | 82 | |
83 | h_can_join = register_hook("can_join"); | |
67b90240 JH |
84 | h_channel_join = register_hook("channel_join"); |
85 | h_can_create_channel = register_hook("can_create_channel"); | |
212380e3 | 86 | } |
87 | ||
88 | /* | |
89 | * allocate_channel - Allocates a channel | |
90 | */ | |
91 | struct Channel * | |
92 | allocate_channel(const char *chname) | |
93 | { | |
94 | struct Channel *chptr; | |
6e9b4415 | 95 | chptr = rb_bh_alloc(channel_heap); |
62d28946 | 96 | chptr->chname = rb_strdup(chname); |
212380e3 | 97 | return (chptr); |
98 | } | |
99 | ||
100 | void | |
101 | free_channel(struct Channel *chptr) | |
102 | { | |
90a3c35b | 103 | rb_free(chptr->chname); |
6e9b4415 | 104 | rb_bh_free(channel_heap, chptr); |
212380e3 | 105 | } |
106 | ||
107 | struct Ban * | |
108 | allocate_ban(const char *banstr, const char *who) | |
109 | { | |
110 | struct Ban *bptr; | |
6e9b4415 | 111 | bptr = rb_bh_alloc(ban_heap); |
62d28946 VY |
112 | bptr->banstr = rb_strdup(banstr); |
113 | bptr->who = rb_strdup(who); | |
212380e3 | 114 | |
115 | return (bptr); | |
116 | } | |
117 | ||
118 | void | |
119 | free_ban(struct Ban *bptr) | |
120 | { | |
90a3c35b VY |
121 | rb_free(bptr->banstr); |
122 | rb_free(bptr->who); | |
6e9b4415 | 123 | rb_bh_free(ban_heap, bptr); |
212380e3 | 124 | } |
125 | ||
126 | ||
127 | /* find_channel_membership() | |
128 | * | |
129 | * input - channel to find them in, client to find | |
130 | * output - membership of client in channel, else NULL | |
131 | * side effects - | |
132 | */ | |
133 | struct membership * | |
134 | find_channel_membership(struct Channel *chptr, struct Client *client_p) | |
135 | { | |
136 | struct membership *msptr; | |
af81d5a0 | 137 | rb_dlink_node *ptr; |
212380e3 | 138 | |
139 | if(!IsClient(client_p)) | |
140 | return NULL; | |
141 | ||
142 | /* Pick the most efficient list to use to be nice to things like | |
143 | * CHANSERV which could be in a large number of channels | |
144 | */ | |
af81d5a0 | 145 | if(rb_dlink_list_length(&chptr->members) < rb_dlink_list_length(&client_p->user->channel)) |
212380e3 | 146 | { |
8e69bb4e | 147 | RB_DLINK_FOREACH(ptr, chptr->members.head) |
212380e3 | 148 | { |
149 | msptr = ptr->data; | |
150 | ||
151 | if(msptr->client_p == client_p) | |
152 | return msptr; | |
153 | } | |
154 | } | |
155 | else | |
156 | { | |
8e69bb4e | 157 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) |
212380e3 | 158 | { |
159 | msptr = ptr->data; | |
160 | ||
161 | if(msptr->chptr == chptr) | |
162 | return msptr; | |
163 | } | |
164 | } | |
165 | ||
166 | return NULL; | |
167 | } | |
168 | ||
169 | /* find_channel_status() | |
170 | * | |
171 | * input - membership to get status for, whether we can combine flags | |
172 | * output - flags of user on channel | |
173 | * side effects - | |
174 | */ | |
175 | const char * | |
176 | find_channel_status(struct membership *msptr, int combine) | |
177 | { | |
b8643345 | 178 | static char buffer[5]; |
212380e3 | 179 | char *p; |
180 | ||
181 | p = buffer; | |
182 | ||
b8643345 G |
183 | if(is_owner(msptr)) |
184 | { | |
185 | if(!combine) | |
186 | return "!"; | |
187 | *p++ = '!'; | |
188 | } | |
189 | ||
212380e3 | 190 | if(is_chanop(msptr)) |
191 | { | |
192 | if(!combine) | |
193 | return "@"; | |
194 | *p++ = '@'; | |
195 | } | |
196 | ||
b8643345 G |
197 | if(is_halfop(msptr)) |
198 | { | |
199 | if(!combine) | |
200 | return "%"; | |
201 | *p++ = '%'; | |
202 | } | |
203 | ||
212380e3 | 204 | if(is_voiced(msptr)) |
205 | *p++ = '+'; | |
206 | ||
207 | *p = '\0'; | |
208 | return buffer; | |
209 | } | |
210 | ||
40c6b59b G |
211 | /* is_halfop() |
212 | * | |
213 | * input - membership to check for halfops | |
214 | * output - 1 if the user is halfopped, 0 if the user is not or halfop | |
215 | * is disabled. | |
216 | * side effects - | |
217 | * | |
218 | */ | |
219 | int | |
220 | is_halfop(struct membership *msptr) | |
221 | { | |
40c6b59b G |
222 | if(!ConfigChannel.use_halfop) |
223 | return 0; | |
82f8e812 G |
224 | if(is_chmode_h(msptr)) |
225 | return 1; | |
40c6b59b G |
226 | else |
227 | return 0; | |
228 | } | |
229 | ||
230 | /* is_owner() | |
231 | * | |
232 | * input - membership to check for owner | |
233 | * output - 1 if the user is an owner, 0 if the user is not or owner | |
234 | * is disabled. | |
235 | * side effects - | |
236 | * | |
237 | */ | |
238 | int | |
239 | is_owner(struct membership *msptr) | |
240 | { | |
40c6b59b G |
241 | if(!ConfigChannel.use_owner) |
242 | return 0; | |
82f8e812 G |
243 | if(is_chmode_a(msptr)) |
244 | return 1; | |
40c6b59b G |
245 | else |
246 | return 0; | |
247 | } | |
248 | ||
d1c7eccf G |
249 | /* is_any_op() |
250 | * | |
251 | * input - membership to check for ops | |
252 | * output - 1 if the user is op, halfop, or owner, 0 elsewise | |
253 | * side effects - | |
254 | */ | |
d1c7eccf G |
255 | int |
256 | is_any_op(struct membership *msptr) | |
257 | { | |
40c6b59b | 258 | if(is_chanop(msptr) || is_halfop(msptr) || is_owner(msptr)) |
d1c7eccf G |
259 | return 1; |
260 | else | |
261 | return 0; | |
262 | } | |
263 | ||
bbc69733 G |
264 | /* is_chanop_voiced() |
265 | * | |
266 | * input - memebership to check for status | |
267 | * output - 1 if the user is op, halfop, owner, or voice, 0 elsewise | |
268 | * side effects - | |
269 | */ | |
270 | int | |
271 | is_chanop_voiced(struct membership *msptr) | |
272 | { | |
40c6b59b | 273 | if(is_chanop(msptr) || is_voiced(msptr) || is_halfop(msptr) || is_owner(msptr)) |
bbc69733 G |
274 | return 1; |
275 | else | |
276 | return 0; | |
277 | } | |
278 | ||
b3b2ed97 G |
279 | /* can_kick_deop() |
280 | * | |
281 | * input - two memeberships | |
282 | * output - 1 if the first memebership can kick/deop the second, 0 elsewise | |
283 | * side effects - | |
284 | */ | |
285 | int | |
286 | can_kick_deop(struct membership *source, struct membership *target) | |
287 | { | |
40c6b59b | 288 | if(is_chanop(source) && !is_owner(target)) |
b3b2ed97 | 289 | return 1; |
40c6b59b G |
290 | else if(is_halfop(source) && !is_any_op(target)) |
291 | return 1; | |
292 | else if(is_owner(source)) | |
293 | return 1; | |
294 | ||
295 | return 0; | |
b3b2ed97 G |
296 | } |
297 | ||
212380e3 | 298 | /* add_user_to_channel() |
299 | * | |
300 | * input - channel to add client to, client to add, channel flags | |
301 | * output - | |
302 | * side effects - user is added to channel | |
303 | */ | |
304 | void | |
305 | add_user_to_channel(struct Channel *chptr, struct Client *client_p, int flags) | |
306 | { | |
307 | struct membership *msptr; | |
308 | ||
309 | s_assert(client_p->user != NULL); | |
310 | if(client_p->user == NULL) | |
311 | return; | |
312 | ||
6e9b4415 | 313 | msptr = rb_bh_alloc(member_heap); |
212380e3 | 314 | |
315 | msptr->chptr = chptr; | |
316 | msptr->client_p = client_p; | |
317 | msptr->flags = flags; | |
318 | ||
af81d5a0 WP |
319 | rb_dlinkAdd(msptr, &msptr->usernode, &client_p->user->channel); |
320 | rb_dlinkAdd(msptr, &msptr->channode, &chptr->members); | |
212380e3 | 321 | |
322 | if(MyClient(client_p)) | |
af81d5a0 | 323 | rb_dlinkAdd(msptr, &msptr->locchannode, &chptr->locmembers); |
212380e3 | 324 | } |
325 | ||
326 | /* remove_user_from_channel() | |
327 | * | |
328 | * input - membership pointer to remove from channel | |
329 | * output - | |
330 | * side effects - membership (thus user) is removed from channel | |
331 | */ | |
332 | void | |
333 | remove_user_from_channel(struct membership *msptr) | |
334 | { | |
335 | struct Client *client_p; | |
336 | struct Channel *chptr; | |
337 | s_assert(msptr != NULL); | |
338 | if(msptr == NULL) | |
339 | return; | |
340 | ||
341 | client_p = msptr->client_p; | |
342 | chptr = msptr->chptr; | |
343 | ||
af81d5a0 WP |
344 | rb_dlinkDelete(&msptr->usernode, &client_p->user->channel); |
345 | rb_dlinkDelete(&msptr->channode, &chptr->members); | |
212380e3 | 346 | |
347 | if(client_p->servptr == &me) | |
af81d5a0 | 348 | rb_dlinkDelete(&msptr->locchannode, &chptr->locmembers); |
212380e3 | 349 | |
af81d5a0 | 350 | if(!(chptr->mode.mode & MODE_PERMANENT) && rb_dlink_list_length(&chptr->members) <= 0) |
212380e3 | 351 | destroy_channel(chptr); |
352 | ||
6e9b4415 | 353 | rb_bh_free(member_heap, msptr); |
212380e3 | 354 | |
355 | return; | |
356 | } | |
357 | ||
358 | /* remove_user_from_channels() | |
359 | * | |
360 | * input - user to remove from all channels | |
361 | * output - | |
362 | * side effects - user is removed from all channels | |
363 | */ | |
364 | void | |
365 | remove_user_from_channels(struct Client *client_p) | |
366 | { | |
367 | struct Channel *chptr; | |
368 | struct membership *msptr; | |
af81d5a0 | 369 | rb_dlink_node *ptr; |
90a3c35b | 370 | rb_dlink_node *next_ptr; |
212380e3 | 371 | |
372 | if(client_p == NULL) | |
373 | return; | |
374 | ||
90a3c35b | 375 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->user->channel.head) |
212380e3 | 376 | { |
377 | msptr = ptr->data; | |
378 | chptr = msptr->chptr; | |
379 | ||
af81d5a0 | 380 | rb_dlinkDelete(&msptr->channode, &chptr->members); |
212380e3 | 381 | |
382 | if(client_p->servptr == &me) | |
af81d5a0 | 383 | rb_dlinkDelete(&msptr->locchannode, &chptr->locmembers); |
212380e3 | 384 | |
af81d5a0 | 385 | if(!(chptr->mode.mode & MODE_PERMANENT) && rb_dlink_list_length(&chptr->members) <= 0) |
212380e3 | 386 | destroy_channel(chptr); |
387 | ||
6e9b4415 | 388 | rb_bh_free(member_heap, msptr); |
212380e3 | 389 | } |
390 | ||
391 | client_p->user->channel.head = client_p->user->channel.tail = NULL; | |
392 | client_p->user->channel.length = 0; | |
393 | } | |
394 | ||
395 | /* invalidate_bancache_user() | |
396 | * | |
397 | * input - user to invalidate ban cache for | |
398 | * output - | |
399 | * side effects - ban cache is invalidated for all memberships of that user | |
400 | * to be used after a nick change | |
401 | */ | |
402 | void | |
403 | invalidate_bancache_user(struct Client *client_p) | |
404 | { | |
405 | struct membership *msptr; | |
af81d5a0 | 406 | rb_dlink_node *ptr; |
212380e3 | 407 | |
408 | if(client_p == NULL) | |
409 | return; | |
410 | ||
8e69bb4e | 411 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) |
212380e3 | 412 | { |
413 | msptr = ptr->data; | |
414 | msptr->bants = 0; | |
415 | msptr->flags &= ~CHFL_BANNED; | |
416 | } | |
417 | } | |
418 | ||
419 | /* check_channel_name() | |
420 | * | |
421 | * input - channel name | |
422 | * output - 1 if valid channel name, else 0 | |
423 | * side effects - | |
424 | */ | |
425 | int | |
426 | check_channel_name(const char *name) | |
427 | { | |
428 | s_assert(name != NULL); | |
429 | if(name == NULL) | |
430 | return 0; | |
431 | ||
432 | for (; *name; ++name) | |
433 | { | |
434 | if(!IsChanChar(*name)) | |
435 | return 0; | |
436 | } | |
437 | ||
438 | return 1; | |
439 | } | |
440 | ||
441 | /* free_channel_list() | |
442 | * | |
af81d5a0 | 443 | * input - rb_dlink list to free |
212380e3 | 444 | * output - |
445 | * side effects - list of b/e/I modes is cleared | |
446 | */ | |
447 | void | |
af81d5a0 | 448 | free_channel_list(rb_dlink_list * list) |
212380e3 | 449 | { |
af81d5a0 | 450 | rb_dlink_node *ptr; |
90a3c35b | 451 | rb_dlink_node *next_ptr; |
212380e3 | 452 | struct Ban *actualBan; |
453 | ||
90a3c35b | 454 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
212380e3 | 455 | { |
456 | actualBan = ptr->data; | |
457 | free_ban(actualBan); | |
458 | } | |
459 | ||
460 | list->head = list->tail = NULL; | |
461 | list->length = 0; | |
462 | } | |
463 | ||
464 | /* destroy_channel() | |
465 | * | |
466 | * input - channel to destroy | |
467 | * output - | |
468 | * side effects - channel is obliterated | |
469 | */ | |
470 | void | |
471 | destroy_channel(struct Channel *chptr) | |
472 | { | |
90a3c35b | 473 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 474 | |
90a3c35b | 475 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->invites.head) |
212380e3 | 476 | { |
477 | del_invite(chptr, ptr->data); | |
478 | } | |
479 | ||
480 | /* free all bans/exceptions/denies */ | |
481 | free_channel_list(&chptr->banlist); | |
482 | free_channel_list(&chptr->exceptlist); | |
483 | free_channel_list(&chptr->invexlist); | |
fea1ad52 | 484 | free_channel_list(&chptr->quietlist); |
212380e3 | 485 | |
486 | /* Free the topic */ | |
487 | free_topic(chptr); | |
488 | ||
af81d5a0 | 489 | rb_dlinkDelete(&chptr->node, &global_channel_list); |
212380e3 | 490 | del_from_channel_hash(chptr->chname, chptr); |
491 | free_channel(chptr); | |
492 | } | |
493 | ||
494 | /* channel_pub_or_secret() | |
495 | * | |
496 | * input - channel | |
497 | * output - "=" if public, "@" if secret, else "*" | |
498 | * side effects - | |
499 | */ | |
500 | static const char * | |
501 | channel_pub_or_secret(struct Channel *chptr) | |
502 | { | |
503 | if(PubChannel(chptr)) | |
504 | return ("="); | |
505 | else if(SecretChannel(chptr)) | |
506 | return ("@"); | |
507 | return ("*"); | |
508 | } | |
509 | ||
510 | /* channel_member_names() | |
511 | * | |
512 | * input - channel to list, client to list to, show endofnames | |
513 | * output - | |
514 | * side effects - client is given list of users on channel | |
515 | */ | |
516 | void | |
517 | channel_member_names(struct Channel *chptr, struct Client *client_p, int show_eon) | |
518 | { | |
519 | struct membership *msptr; | |
520 | struct Client *target_p; | |
af81d5a0 | 521 | rb_dlink_node *ptr; |
212380e3 | 522 | char lbuf[BUFSIZE]; |
523 | char *t; | |
524 | int mlen; | |
525 | int tlen; | |
526 | int cur_len; | |
527 | int is_member; | |
528 | int stack = IsCapable(client_p, CLICAP_MULTI_PREFIX); | |
529 | ||
530 | if(ShowChannel(client_p, chptr)) | |
531 | { | |
532 | is_member = IsMember(client_p, chptr); | |
533 | ||
38e6acdd | 534 | cur_len = mlen = rb_sprintf(lbuf, form_str(RPL_NAMREPLY), |
212380e3 | 535 | me.name, client_p->name, |
536 | channel_pub_or_secret(chptr), chptr->chname); | |
537 | ||
538 | t = lbuf + cur_len; | |
539 | ||
8e69bb4e | 540 | RB_DLINK_FOREACH(ptr, chptr->members.head) |
212380e3 | 541 | { |
542 | msptr = ptr->data; | |
543 | target_p = msptr->client_p; | |
544 | ||
545 | if(IsInvisible(target_p) && !is_member) | |
546 | continue; | |
547 | ||
548 | /* space, possible "@+" prefix */ | |
549 | if(cur_len + strlen(target_p->name) + 3 >= BUFSIZE - 3) | |
550 | { | |
551 | *(t - 1) = '\0'; | |
552 | sendto_one(client_p, "%s", lbuf); | |
553 | cur_len = mlen; | |
554 | t = lbuf + mlen; | |
555 | } | |
556 | ||
38e6acdd | 557 | tlen = rb_sprintf(t, "%s%s ", find_channel_status(msptr, stack), |
212380e3 | 558 | target_p->name); |
559 | ||
560 | cur_len += tlen; | |
561 | t += tlen; | |
562 | } | |
563 | ||
564 | /* The old behaviour here was to always output our buffer, | |
565 | * even if there are no clients we can show. This happens | |
566 | * when a client does "NAMES" with no parameters, and all | |
567 | * the clients on a -sp channel are +i. I dont see a good | |
568 | * reason for keeping that behaviour, as it just wastes | |
569 | * bandwidth. --anfl | |
570 | */ | |
571 | if(cur_len != mlen) | |
572 | { | |
573 | *(t - 1) = '\0'; | |
574 | sendto_one(client_p, "%s", lbuf); | |
575 | } | |
576 | } | |
577 | ||
578 | if(show_eon) | |
579 | sendto_one(client_p, form_str(RPL_ENDOFNAMES), | |
580 | me.name, client_p->name, chptr->chname); | |
581 | } | |
582 | ||
583 | /* del_invite() | |
584 | * | |
585 | * input - channel to remove invite from, client to remove | |
586 | * output - | |
587 | * side effects - user is removed from invite list, if exists | |
588 | */ | |
589 | void | |
590 | del_invite(struct Channel *chptr, struct Client *who) | |
591 | { | |
af81d5a0 WP |
592 | rb_dlinkFindDestroy(who, &chptr->invites); |
593 | rb_dlinkFindDestroy(chptr, &who->user->invited); | |
212380e3 | 594 | } |
595 | ||
596 | /* is_banned() | |
597 | * | |
598 | * input - channel to check bans for, user to check bans against | |
599 | * optional prebuilt buffers | |
600 | * output - 1 if banned, else 0 | |
601 | * side effects - | |
602 | */ | |
603 | int | |
604 | is_banned(struct Channel *chptr, struct Client *who, struct membership *msptr, | |
605 | const char *s, const char *s2) | |
606 | { | |
607 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
608 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
609 | char src_althost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
610 | char *s3 = NULL; | |
af81d5a0 | 611 | rb_dlink_node *ptr; |
212380e3 | 612 | struct Ban *actualBan = NULL; |
613 | struct Ban *actualExcept = NULL; | |
614 | ||
615 | if(!MyClient(who)) | |
616 | return 0; | |
617 | ||
618 | /* if the buffers havent been built, do it here */ | |
619 | if(s == NULL) | |
620 | { | |
38e6acdd WP |
621 | rb_sprintf(src_host, "%s!%s@%s", who->name, who->username, who->host); |
622 | rb_sprintf(src_iphost, "%s!%s@%s", who->name, who->username, who->sockhost); | |
212380e3 | 623 | |
624 | s = src_host; | |
625 | s2 = src_iphost; | |
626 | } | |
627 | if(who->localClient->mangledhost != NULL) | |
628 | { | |
629 | /* if host mangling mode enabled, also check their real host */ | |
630 | if(!strcmp(who->host, who->localClient->mangledhost)) | |
631 | { | |
38e6acdd | 632 | rb_sprintf(src_althost, "%s!%s@%s", who->name, who->username, who->orighost); |
212380e3 | 633 | s3 = src_althost; |
634 | } | |
635 | /* if host mangling mode not enabled and no other spoof, | |
636 | * also check the mangled form of their host */ | |
637 | else if (!IsDynSpoof(who)) | |
638 | { | |
38e6acdd | 639 | rb_sprintf(src_althost, "%s!%s@%s", who->name, who->username, who->localClient->mangledhost); |
212380e3 | 640 | s3 = src_althost; |
641 | } | |
642 | } | |
643 | ||
8e69bb4e | 644 | RB_DLINK_FOREACH(ptr, chptr->banlist.head) |
212380e3 | 645 | { |
646 | actualBan = ptr->data; | |
647 | if(match(actualBan->banstr, s) || | |
648 | match(actualBan->banstr, s2) || | |
649 | match_cidr(actualBan->banstr, s2) || | |
650 | match_extban(actualBan->banstr, who, chptr, CHFL_BAN) || | |
651 | (s3 != NULL && match(actualBan->banstr, s3))) | |
652 | break; | |
653 | else | |
654 | actualBan = NULL; | |
655 | } | |
656 | ||
657 | if((actualBan != NULL) && ConfigChannel.use_except) | |
658 | { | |
8e69bb4e | 659 | RB_DLINK_FOREACH(ptr, chptr->exceptlist.head) |
212380e3 | 660 | { |
661 | actualExcept = ptr->data; | |
662 | ||
663 | /* theyre exempted.. */ | |
664 | if(match(actualExcept->banstr, s) || | |
665 | match(actualExcept->banstr, s2) || | |
666 | match_cidr(actualExcept->banstr, s2) || | |
667 | match_extban(actualExcept->banstr, who, chptr, CHFL_EXCEPTION) || | |
668 | (s3 != NULL && match(actualExcept->banstr, s3))) | |
669 | { | |
670 | /* cache the fact theyre not banned */ | |
671 | if(msptr != NULL) | |
672 | { | |
673 | msptr->bants = chptr->bants; | |
674 | msptr->flags &= ~CHFL_BANNED; | |
675 | } | |
676 | ||
677 | return CHFL_EXCEPTION; | |
678 | } | |
679 | } | |
680 | } | |
681 | ||
682 | /* cache the banned/not banned status */ | |
683 | if(msptr != NULL) | |
684 | { | |
685 | msptr->bants = chptr->bants; | |
686 | ||
687 | if(actualBan != NULL) | |
688 | { | |
689 | msptr->flags |= CHFL_BANNED; | |
690 | return CHFL_BAN; | |
691 | } | |
692 | else | |
693 | { | |
694 | msptr->flags &= ~CHFL_BANNED; | |
695 | return 0; | |
696 | } | |
697 | } | |
698 | ||
699 | return ((actualBan ? CHFL_BAN : 0)); | |
700 | } | |
701 | ||
702 | /* is_quieted() | |
703 | * | |
704 | * input - channel to check bans for, user to check bans against | |
705 | * optional prebuilt buffers | |
706 | * output - 1 if banned, else 0 | |
707 | * side effects - | |
708 | */ | |
709 | int | |
710 | is_quieted(struct Channel *chptr, struct Client *who, struct membership *msptr, | |
711 | const char *s, const char *s2) | |
712 | { | |
713 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
714 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
715 | char src_althost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
716 | char *s3 = NULL; | |
af81d5a0 | 717 | rb_dlink_node *ptr; |
212380e3 | 718 | struct Ban *actualBan = NULL; |
719 | struct Ban *actualExcept = NULL; | |
720 | ||
721 | if(!MyClient(who)) | |
722 | return 0; | |
723 | ||
724 | /* if the buffers havent been built, do it here */ | |
725 | if(s == NULL) | |
726 | { | |
38e6acdd WP |
727 | rb_sprintf(src_host, "%s!%s@%s", who->name, who->username, who->host); |
728 | rb_sprintf(src_iphost, "%s!%s@%s", who->name, who->username, who->sockhost); | |
212380e3 | 729 | |
730 | s = src_host; | |
731 | s2 = src_iphost; | |
732 | } | |
733 | if(who->localClient->mangledhost != NULL) | |
734 | { | |
735 | /* if host mangling mode enabled, also check their real host */ | |
736 | if(!strcmp(who->host, who->localClient->mangledhost)) | |
737 | { | |
38e6acdd | 738 | rb_sprintf(src_althost, "%s!%s@%s", who->name, who->username, who->orighost); |
212380e3 | 739 | s3 = src_althost; |
740 | } | |
741 | /* if host mangling mode not enabled and no other spoof, | |
742 | * also check the mangled form of their host */ | |
743 | else if (!IsDynSpoof(who)) | |
744 | { | |
38e6acdd | 745 | rb_sprintf(src_althost, "%s!%s@%s", who->name, who->username, who->localClient->mangledhost); |
212380e3 | 746 | s3 = src_althost; |
747 | } | |
748 | } | |
749 | ||
8e69bb4e | 750 | RB_DLINK_FOREACH(ptr, chptr->quietlist.head) |
212380e3 | 751 | { |
752 | actualBan = ptr->data; | |
753 | if(match(actualBan->banstr, s) || | |
754 | match(actualBan->banstr, s2) || | |
755 | match_cidr(actualBan->banstr, s2) || | |
756 | match_extban(actualBan->banstr, who, chptr, CHFL_QUIET) || | |
757 | (s3 != NULL && match(actualBan->banstr, s3))) | |
758 | break; | |
759 | else | |
760 | actualBan = NULL; | |
761 | } | |
762 | ||
763 | if((actualBan != NULL) && ConfigChannel.use_except) | |
764 | { | |
8e69bb4e | 765 | RB_DLINK_FOREACH(ptr, chptr->exceptlist.head) |
212380e3 | 766 | { |
767 | actualExcept = ptr->data; | |
768 | ||
769 | /* theyre exempted.. */ | |
770 | if(match(actualExcept->banstr, s) || | |
771 | match(actualExcept->banstr, s2) || | |
772 | match_cidr(actualExcept->banstr, s2) || | |
773 | match_extban(actualExcept->banstr, who, chptr, CHFL_EXCEPTION) || | |
774 | (s3 != NULL && match(actualExcept->banstr, s3))) | |
775 | { | |
776 | /* cache the fact theyre not banned */ | |
777 | if(msptr != NULL) | |
778 | { | |
779 | msptr->bants = chptr->bants; | |
780 | msptr->flags &= ~CHFL_BANNED; | |
781 | } | |
782 | ||
783 | return CHFL_EXCEPTION; | |
784 | } | |
785 | } | |
786 | } | |
787 | ||
788 | /* cache the banned/not banned status */ | |
789 | if(msptr != NULL) | |
790 | { | |
791 | msptr->bants = chptr->bants; | |
792 | ||
793 | if(actualBan != NULL) | |
794 | { | |
795 | msptr->flags |= CHFL_BANNED; | |
796 | return CHFL_BAN; | |
797 | } | |
798 | else | |
799 | { | |
800 | msptr->flags &= ~CHFL_BANNED; | |
801 | return 0; | |
802 | } | |
803 | } | |
804 | ||
805 | return ((actualBan ? CHFL_BAN : 0)); | |
806 | } | |
807 | ||
808 | /* can_join() | |
809 | * | |
810 | * input - client to check, channel to check for, key | |
811 | * output - reason for not being able to join, else 0 | |
812 | * side effects - | |
813 | */ | |
814 | int | |
815 | can_join(struct Client *source_p, struct Channel *chptr, char *key) | |
816 | { | |
af81d5a0 WP |
817 | rb_dlink_node *invite = NULL; |
818 | rb_dlink_node *ptr; | |
212380e3 | 819 | struct Ban *invex = NULL; |
820 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; | |
821 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
822 | char src_althost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
823 | int use_althost = 0; | |
1ebf4db4 | 824 | int i = 0; |
212380e3 | 825 | hook_data_channel moduledata; |
826 | ||
827 | s_assert(source_p->localClient != NULL); | |
828 | ||
13a467bb JH |
829 | if(IsOverride(source_p)) |
830 | return 0; | |
831 | ||
38e6acdd WP |
832 | rb_sprintf(src_host, "%s!%s@%s", source_p->name, source_p->username, source_p->host); |
833 | rb_sprintf(src_iphost, "%s!%s@%s", source_p->name, source_p->username, source_p->sockhost); | |
212380e3 | 834 | if(source_p->localClient->mangledhost != NULL) |
835 | { | |
836 | /* if host mangling mode enabled, also check their real host */ | |
837 | if(!strcmp(source_p->host, source_p->localClient->mangledhost)) | |
838 | { | |
38e6acdd | 839 | rb_sprintf(src_althost, "%s!%s@%s", source_p->name, source_p->username, source_p->orighost); |
212380e3 | 840 | use_althost = 1; |
841 | } | |
842 | /* if host mangling mode not enabled and no other spoof, | |
843 | * also check the mangled form of their host */ | |
844 | else if (!IsDynSpoof(source_p)) | |
845 | { | |
38e6acdd | 846 | rb_sprintf(src_althost, "%s!%s@%s", source_p->name, source_p->username, source_p->localClient->mangledhost); |
212380e3 | 847 | use_althost = 1; |
848 | } | |
849 | } | |
850 | ||
851 | if((is_banned(chptr, source_p, NULL, src_host, src_iphost)) == CHFL_BAN) | |
852 | return (ERR_BANNEDFROMCHAN); | |
853 | ||
854 | if(chptr->mode.mode & MODE_INVITEONLY) | |
855 | { | |
8e69bb4e | 856 | RB_DLINK_FOREACH(invite, source_p->user->invited.head) |
212380e3 | 857 | { |
1ebf4db4 | 858 | if(invite->data == chptr) |
212380e3 | 859 | break; |
860 | } | |
1ebf4db4 | 861 | if(invite == NULL) |
212380e3 | 862 | { |
863 | if(!ConfigChannel.use_invex) | |
864 | return (ERR_INVITEONLYCHAN); | |
8e69bb4e | 865 | RB_DLINK_FOREACH(ptr, chptr->invexlist.head) |
212380e3 | 866 | { |
867 | invex = ptr->data; | |
868 | if(match(invex->banstr, src_host) | |
869 | || match(invex->banstr, src_iphost) | |
870 | || match_cidr(invex->banstr, src_iphost) | |
871 | || match_extban(invex->banstr, source_p, chptr, CHFL_INVEX) | |
872 | || (use_althost && match(invex->banstr, src_althost))) | |
873 | break; | |
874 | } | |
875 | if(ptr == NULL) | |
876 | return (ERR_INVITEONLYCHAN); | |
877 | } | |
878 | } | |
879 | ||
880 | if(*chptr->mode.key && (EmptyString(key) || irccmp(chptr->mode.key, key))) | |
881 | return (ERR_BADCHANNELKEY); | |
882 | ||
883 | if(chptr->mode.limit && | |
af81d5a0 | 884 | rb_dlink_list_length(&chptr->members) >= (unsigned long) chptr->mode.limit) |
1ebf4db4 | 885 | i = ERR_CHANNELISFULL; |
212380e3 | 886 | if(chptr->mode.mode & MODE_REGONLY && EmptyString(source_p->user->suser)) |
1ebf4db4 | 887 | i = ERR_NEEDREGGEDNICK; |
212380e3 | 888 | /* join throttling stuff --nenolod */ |
1ebf4db4 | 889 | else if(chptr->mode.join_num > 0 && chptr->mode.join_time > 0) |
212380e3 | 890 | { |
9f6bbe3c | 891 | if ((rb_current_time() - chptr->join_delta <= |
212380e3 | 892 | chptr->mode.join_time) && (chptr->join_count >= |
893 | chptr->mode.join_num)) | |
1ebf4db4 | 894 | i = ERR_THROTTLE; |
895 | } | |
896 | ||
897 | /* allow /invite to override +l/+r/+j also -- jilles */ | |
898 | if (i != 0 && invite == NULL) | |
899 | { | |
8e69bb4e | 900 | RB_DLINK_FOREACH(invite, source_p->user->invited.head) |
1ebf4db4 | 901 | { |
902 | if(invite->data == chptr) | |
903 | break; | |
904 | } | |
905 | if (invite == NULL) | |
906 | return i; | |
212380e3 | 907 | } |
908 | ||
909 | moduledata.client = source_p; | |
910 | moduledata.chptr = chptr; | |
911 | moduledata.approved = 0; | |
912 | ||
913 | call_hook(h_can_join, &moduledata); | |
914 | ||
915 | return moduledata.approved; | |
916 | } | |
917 | ||
918 | /* can_send() | |
919 | * | |
920 | * input - user to check in channel, membership pointer | |
921 | * output - whether can explicitly send or not, else CAN_SEND_NONOP | |
922 | * side effects - | |
923 | */ | |
924 | int | |
925 | can_send(struct Channel *chptr, struct Client *source_p, struct membership *msptr) | |
926 | { | |
927 | if(IsServer(source_p) || IsService(source_p)) | |
928 | return CAN_SEND_OPV; | |
929 | ||
930 | if(MyClient(source_p) && hash_find_resv(chptr->chname) && | |
931 | !IsOper(source_p) && !IsExemptResv(source_p)) | |
932 | return CAN_SEND_NO; | |
933 | ||
934 | if(msptr == NULL) | |
935 | { | |
936 | msptr = find_channel_membership(chptr, source_p); | |
937 | ||
938 | if(msptr == NULL) | |
939 | { | |
940 | /* if its +m or +n and theyre not in the channel, | |
941 | * they cant send. we dont check bans here because | |
942 | * theres no possibility of caching them --fl | |
943 | */ | |
944 | if(chptr->mode.mode & MODE_NOPRIVMSGS || chptr->mode.mode & MODE_MODERATED) | |
945 | return CAN_SEND_NO; | |
946 | else | |
947 | return CAN_SEND_NONOP; | |
948 | } | |
949 | } | |
950 | ||
951 | if(is_chanop_voiced(msptr)) | |
952 | return CAN_SEND_OPV; | |
953 | ||
13a467bb JH |
954 | if(IsOverride(source_p)) |
955 | return CAN_SEND_NONOP; | |
956 | ||
212380e3 | 957 | if(chptr->mode.mode & MODE_MODERATED) |
958 | return CAN_SEND_NO; | |
959 | ||
960 | if(MyClient(source_p)) | |
961 | { | |
962 | /* cached can_send */ | |
963 | if(msptr->bants == chptr->bants) | |
964 | { | |
965 | if(can_send_banned(msptr)) | |
966 | return CAN_SEND_NO; | |
967 | } | |
968 | else if(is_banned(chptr, source_p, msptr, NULL, NULL) == CHFL_BAN | |
969 | || is_quieted(chptr, source_p, msptr, NULL, NULL) == CHFL_BAN) | |
970 | return CAN_SEND_NO; | |
971 | } | |
972 | ||
973 | return CAN_SEND_NONOP; | |
974 | } | |
975 | ||
976 | /* find_bannickchange_channel() | |
977 | * Input: client to check | |
978 | * Output: channel preventing nick change | |
979 | */ | |
980 | struct Channel * | |
981 | find_bannickchange_channel(struct Client *client_p) | |
982 | { | |
983 | struct Channel *chptr; | |
984 | struct membership *msptr; | |
af81d5a0 | 985 | rb_dlink_node *ptr; |
212380e3 | 986 | char src_host[NICKLEN + USERLEN + HOSTLEN + 6]; |
987 | char src_iphost[NICKLEN + USERLEN + HOSTLEN + 6]; | |
988 | ||
13a467bb | 989 | if (!MyClient(client_p) || IsOverride(client_p)) |
212380e3 | 990 | return NULL; |
991 | ||
38e6acdd WP |
992 | rb_sprintf(src_host, "%s!%s@%s", client_p->name, client_p->username, client_p->host); |
993 | rb_sprintf(src_iphost, "%s!%s@%s", client_p->name, client_p->username, client_p->sockhost); | |
212380e3 | 994 | |
8e69bb4e | 995 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) |
212380e3 | 996 | { |
997 | msptr = ptr->data; | |
998 | chptr = msptr->chptr; | |
999 | if (is_chanop_voiced(msptr)) | |
1000 | continue; | |
1001 | /* cached can_send */ | |
1002 | if (msptr->bants == chptr->bants) | |
1003 | { | |
1004 | if (can_send_banned(msptr)) | |
1005 | return chptr; | |
1006 | } | |
1007 | else if (is_banned(chptr, client_p, msptr, src_host, src_iphost) == CHFL_BAN | |
1008 | || is_quieted(chptr, client_p, msptr, src_host, src_iphost) == CHFL_BAN) | |
1009 | return chptr; | |
1010 | } | |
1011 | return NULL; | |
1012 | } | |
1013 | ||
afd4834b G |
1014 | /* find_nonickchange_channel() |
1015 | * Input: client to check | |
1016 | * Output: channel preventing nick change | |
1017 | */ | |
1018 | struct Channel * | |
1019 | find_nonickchange_channel(struct Client *client_p) | |
1020 | { | |
1021 | struct Channel *chptr; | |
1022 | struct membership *msptr; | |
1023 | rb_dlink_node *ptr; | |
1024 | ||
1025 | if (!MyClient(client_p)) | |
1026 | return NULL; | |
1027 | ||
1028 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) | |
1029 | { | |
1030 | msptr = ptr->data; | |
1031 | chptr = msptr->chptr; | |
5ad94b50 | 1032 | if (chptr->mode.mode & MODE_NONICK && (!ConfigChannel.exempt_cmode_N || !is_any_op(msptr))) |
afd4834b G |
1033 | return chptr; |
1034 | } | |
1035 | return NULL; | |
1036 | } | |
1037 | ||
212380e3 | 1038 | /* void check_spambot_warning(struct Client *source_p) |
1039 | * Input: Client to check, channel name or NULL if this is a part. | |
1040 | * Output: none | |
1041 | * Side-effects: Updates the client's oper_warn_count_down, warns the | |
1042 | * IRC operators if necessary, and updates join_leave_countdown as | |
1043 | * needed. | |
1044 | */ | |
1045 | void | |
1046 | check_spambot_warning(struct Client *source_p, const char *name) | |
1047 | { | |
1048 | int t_delta; | |
1049 | int decrement_count; | |
1050 | if((GlobalSetOptions.spam_num && | |
1051 | (source_p->localClient->join_leave_count >= GlobalSetOptions.spam_num))) | |
1052 | { | |
1053 | if(source_p->localClient->oper_warn_count_down > 0) | |
1054 | source_p->localClient->oper_warn_count_down--; | |
1055 | else | |
1056 | source_p->localClient->oper_warn_count_down = 0; | |
05d8a68c JT |
1057 | if(source_p->localClient->oper_warn_count_down == 0 && |
1058 | name != NULL) | |
212380e3 | 1059 | { |
1060 | /* Its already known as a possible spambot */ | |
05d8a68c JT |
1061 | sendto_realops_snomask(SNO_BOTS, L_NETWIDE, |
1062 | "User %s (%s@%s) trying to join %s is a possible spambot", | |
1063 | source_p->name, | |
1064 | source_p->username, source_p->orighost, name); | |
212380e3 | 1065 | source_p->localClient->oper_warn_count_down = OPER_SPAM_COUNTDOWN; |
1066 | } | |
1067 | } | |
1068 | else | |
1069 | { | |
1070 | if((t_delta = | |
9f6bbe3c | 1071 | (rb_current_time() - source_p->localClient->last_leave_time)) > |
212380e3 | 1072 | JOIN_LEAVE_COUNT_EXPIRE_TIME) |
1073 | { | |
1074 | decrement_count = (t_delta / JOIN_LEAVE_COUNT_EXPIRE_TIME); | |
b6698246 JT |
1075 | if(name != NULL) |
1076 | ; | |
1077 | else if(decrement_count > source_p->localClient->join_leave_count) | |
212380e3 | 1078 | source_p->localClient->join_leave_count = 0; |
1079 | else | |
1080 | source_p->localClient->join_leave_count -= decrement_count; | |
1081 | } | |
1082 | else | |
1083 | { | |
9f6bbe3c | 1084 | if((rb_current_time() - |
212380e3 | 1085 | (source_p->localClient->last_join_time)) < GlobalSetOptions.spam_time) |
1086 | { | |
1087 | /* oh, its a possible spambot */ | |
1088 | source_p->localClient->join_leave_count++; | |
1089 | } | |
1090 | } | |
1091 | if(name != NULL) | |
9f6bbe3c | 1092 | source_p->localClient->last_join_time = rb_current_time(); |
212380e3 | 1093 | else |
9f6bbe3c | 1094 | source_p->localClient->last_leave_time = rb_current_time(); |
212380e3 | 1095 | } |
1096 | } | |
1097 | ||
1098 | /* check_splitmode() | |
1099 | * | |
1100 | * input - | |
1101 | * output - | |
1102 | * side effects - compares usercount and servercount against their split | |
1103 | * values and adjusts splitmode accordingly | |
1104 | */ | |
1105 | void | |
1106 | check_splitmode(void *unused) | |
1107 | { | |
1108 | if(splitchecking && (ConfigChannel.no_join_on_split || ConfigChannel.no_create_on_split)) | |
1109 | { | |
1110 | /* not split, we're being asked to check now because someone | |
1111 | * has left | |
1112 | */ | |
1113 | if(!splitmode) | |
1114 | { | |
1115 | if(eob_count < split_servers || Count.total < split_users) | |
1116 | { | |
1117 | splitmode = 1; | |
1118 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1119 | "Network split, activating splitmode"); | |
dd9be678 | 1120 | check_splitmode_ev = rb_event_addish("check_splitmode", check_splitmode, NULL, 2); |
212380e3 | 1121 | } |
1122 | } | |
1123 | /* in splitmode, check whether its finished */ | |
1124 | else if(eob_count >= split_servers && Count.total >= split_users) | |
1125 | { | |
1126 | splitmode = 0; | |
1127 | ||
1128 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1129 | "Network rejoined, deactivating splitmode"); | |
1130 | ||
dd9be678 | 1131 | rb_event_delete(check_splitmode_ev); |
0ae330b4 | 1132 | check_splitmode_ev = NULL; |
212380e3 | 1133 | } |
1134 | } | |
1135 | } | |
1136 | ||
1137 | ||
1138 | /* allocate_topic() | |
1139 | * | |
1140 | * input - channel to allocate topic for | |
1141 | * output - 1 on success, else 0 | |
1142 | * side effects - channel gets a topic allocated | |
1143 | */ | |
1144 | static void | |
1145 | allocate_topic(struct Channel *chptr) | |
1146 | { | |
1147 | void *ptr; | |
1148 | ||
1149 | if(chptr == NULL) | |
1150 | return; | |
1151 | ||
6e9b4415 | 1152 | ptr = rb_bh_alloc(topic_heap); |
212380e3 | 1153 | |
1154 | /* Basically we allocate one large block for the topic and | |
1155 | * the topic info. We then split it up into two and shove it | |
1156 | * in the chptr | |
1157 | */ | |
1158 | chptr->topic = ptr; | |
1159 | chptr->topic_info = (char *) ptr + TOPICLEN + 1; | |
1160 | *chptr->topic = '\0'; | |
1161 | *chptr->topic_info = '\0'; | |
1162 | } | |
1163 | ||
1164 | /* free_topic() | |
1165 | * | |
1166 | * input - channel which has topic to free | |
1167 | * output - | |
1168 | * side effects - channels topic is free'd | |
1169 | */ | |
1170 | static void | |
1171 | free_topic(struct Channel *chptr) | |
1172 | { | |
1173 | void *ptr; | |
1174 | ||
1175 | if(chptr == NULL || chptr->topic == NULL) | |
1176 | return; | |
1177 | ||
1178 | /* This is safe for now - If you change allocate_topic you | |
1179 | * MUST change this as well | |
1180 | */ | |
1181 | ptr = chptr->topic; | |
6e9b4415 | 1182 | rb_bh_free(topic_heap, ptr); |
212380e3 | 1183 | chptr->topic = NULL; |
1184 | chptr->topic_info = NULL; | |
1185 | } | |
1186 | ||
1187 | /* set_channel_topic() | |
1188 | * | |
1189 | * input - channel, topic to set, topic info and topic ts | |
1190 | * output - | |
1191 | * side effects - channels topic, topic info and TS are set. | |
1192 | */ | |
1193 | void | |
1194 | set_channel_topic(struct Channel *chptr, const char *topic, const char *topic_info, time_t topicts) | |
1195 | { | |
1196 | if(strlen(topic) > 0) | |
1197 | { | |
1198 | if(chptr->topic == NULL) | |
1199 | allocate_topic(chptr); | |
907468c4 VY |
1200 | rb_strlcpy(chptr->topic, topic, TOPICLEN + 1); |
1201 | rb_strlcpy(chptr->topic_info, topic_info, USERHOST_REPLYLEN); | |
212380e3 | 1202 | chptr->topic_time = topicts; |
1203 | } | |
1204 | else | |
1205 | { | |
1206 | if(chptr->topic != NULL) | |
1207 | free_topic(chptr); | |
1208 | chptr->topic_time = 0; | |
1209 | } | |
1210 | } | |
1211 | ||
c279d43b G |
1212 | /* has_common_channel() |
1213 | * | |
1214 | * input - pointer to client | |
1215 | * - pointer to another client | |
1216 | * output - 1 if the two have a channel in common, 0 elsewise | |
1217 | * side effects - none | |
1218 | */ | |
1219 | int | |
1220 | has_common_channel(struct Client *client1, struct Client *client2) | |
1221 | { | |
1222 | rb_dlink_node *ptr; | |
1223 | ||
1224 | RB_DLINK_FOREACH(ptr, client1->user->channel.head) | |
1225 | { | |
1226 | if(IsMember(client2, ((struct membership *)ptr->data)->chptr)) | |
1227 | return 1; | |
1228 | } | |
99c78094 | 1229 | return 0; |
c279d43b G |
1230 | } |
1231 | ||
212380e3 | 1232 | /* channel_modes() |
1233 | * | |
1234 | * inputs - pointer to channel | |
1235 | * - pointer to client | |
f1e35c19 | 1236 | * output - string with simple modes |
1237 | * side effects - result from previous calls overwritten | |
212380e3 | 1238 | * |
1239 | * Stolen from ShadowIRCd 4 --nenolod | |
1240 | */ | |
1241 | const char * | |
1242 | channel_modes(struct Channel *chptr, struct Client *client_p) | |
1243 | { | |
1244 | int i; | |
1245 | char buf1[BUFSIZE]; | |
1246 | char buf2[BUFSIZE]; | |
1247 | static char final[BUFSIZE]; | |
1248 | char *mbuf = buf1; | |
1249 | char *pbuf = buf2; | |
1250 | ||
1251 | *mbuf++ = '+'; | |
1252 | *pbuf = '\0'; | |
1253 | ||
75818939 | 1254 | for (i = 0; i < 256; i++) |
1cdd8fdf | 1255 | { |
565f4362 | 1256 | if(chmode_table[i].set_func == chm_hidden && !IsOper(client_p) && IsClient(client_p)) |
1cdd8fdf | 1257 | continue; |
75818939 VY |
1258 | if(chptr->mode.mode & chmode_flags[i]) |
1259 | *mbuf++ = i; | |
1cdd8fdf | 1260 | } |
212380e3 | 1261 | |
1262 | if(chptr->mode.limit) | |
1263 | { | |
1264 | *mbuf++ = 'l'; | |
1265 | ||
f1e35c19 | 1266 | if(!IsClient(client_p) || IsMember(client_p, chptr)) |
38e6acdd | 1267 | pbuf += rb_sprintf(pbuf, " %d", chptr->mode.limit); |
212380e3 | 1268 | } |
1269 | ||
1270 | if(*chptr->mode.key) | |
1271 | { | |
1272 | *mbuf++ = 'k'; | |
1273 | ||
f1e35c19 | 1274 | if(pbuf > buf2 || !IsClient(client_p) || IsMember(client_p, chptr)) |
38e6acdd | 1275 | pbuf += rb_sprintf(pbuf, " %s", chptr->mode.key); |
212380e3 | 1276 | } |
1277 | ||
1278 | if(chptr->mode.join_num) | |
1279 | { | |
1280 | *mbuf++ = 'j'; | |
1281 | ||
f1e35c19 | 1282 | if(pbuf > buf2 || !IsClient(client_p) || IsMember(client_p, chptr)) |
38e6acdd | 1283 | pbuf += rb_sprintf(pbuf, " %d:%d", chptr->mode.join_num, |
212380e3 | 1284 | chptr->mode.join_time); |
1285 | } | |
1286 | ||
f1e35c19 | 1287 | if(*chptr->mode.forward && (ConfigChannel.use_forward || !IsClient(client_p))) |
212380e3 | 1288 | { |
1289 | *mbuf++ = 'f'; | |
1290 | ||
f1e35c19 | 1291 | if(pbuf > buf2 || !IsClient(client_p) || IsMember(client_p, chptr)) |
38e6acdd | 1292 | pbuf += rb_sprintf(pbuf, " %s", chptr->mode.forward); |
212380e3 | 1293 | } |
1294 | ||
1295 | *mbuf = '\0'; | |
1296 | ||
907468c4 | 1297 | rb_strlcpy(final, buf1, sizeof final); |
a64c5173 | 1298 | rb_strlcat(final, buf2, sizeof final); |
212380e3 | 1299 | return final; |
1300 | } | |
1301 | ||
1302 | /* Now lets do some stuff to keep track of what combinations of | |
1303 | * servers exist... | |
1304 | * Note that the number of combinations doubles each time you add | |
1305 | * something to this list. Each one is only quick if no servers use that | |
1306 | * combination, but if the numbers get too high here MODE will get too | |
1307 | * slow. I suggest if you get more than 7 here, you consider getting rid | |
1308 | * of some and merging or something. If it wasn't for irc+cs we would | |
1309 | * probably not even need to bother about most of these, but unfortunately | |
1310 | * we do. -A1kmm | |
1311 | */ | |
1312 | ||
1313 | /* void init_chcap_usage_counts(void) | |
1314 | * | |
1315 | * Inputs - none | |
1316 | * Output - none | |
1317 | * Side-effects - Initialises the usage counts to zero. Fills in the | |
1318 | * chcap_yes and chcap_no combination tables. | |
1319 | */ | |
1320 | void | |
1321 | init_chcap_usage_counts(void) | |
1322 | { | |
1323 | unsigned long m, c, y, n; | |
1324 | ||
1325 | memset(chcap_combos, 0, sizeof(chcap_combos)); | |
1326 | ||
1327 | /* For every possible combination */ | |
1328 | for (m = 0; m < NCHCAP_COMBOS; m++) | |
1329 | { | |
1330 | /* Check each capab */ | |
1331 | for (c = y = n = 0; c < NCHCAPS; c++) | |
1332 | { | |
1333 | if((m & (1 << c)) == 0) | |
1334 | n |= channel_capabs[c]; | |
1335 | else | |
1336 | y |= channel_capabs[c]; | |
1337 | } | |
1338 | chcap_combos[m].cap_yes = y; | |
1339 | chcap_combos[m].cap_no = n; | |
1340 | } | |
1341 | } | |
1342 | ||
1343 | /* void set_chcap_usage_counts(struct Client *serv_p) | |
1344 | * Input: serv_p; The client whose capabs to register. | |
1345 | * Output: none | |
1346 | * Side-effects: Increments the usage counts for the correct capab | |
1347 | * combination. | |
1348 | */ | |
1349 | void | |
1350 | set_chcap_usage_counts(struct Client *serv_p) | |
1351 | { | |
1352 | int n; | |
1353 | ||
1354 | for (n = 0; n < NCHCAP_COMBOS; n++) | |
1355 | { | |
1356 | if(IsCapable(serv_p, chcap_combos[n].cap_yes) && | |
1357 | NotCapable(serv_p, chcap_combos[n].cap_no)) | |
1358 | { | |
1359 | chcap_combos[n].count++; | |
1360 | return; | |
1361 | } | |
1362 | } | |
1363 | ||
1364 | /* This should be impossible -A1kmm. */ | |
1365 | s_assert(0); | |
1366 | } | |
1367 | ||
1368 | /* void set_chcap_usage_counts(struct Client *serv_p) | |
1369 | * | |
1370 | * Inputs - serv_p; The client whose capabs to register. | |
1371 | * Output - none | |
1372 | * Side-effects - Decrements the usage counts for the correct capab | |
1373 | * combination. | |
1374 | */ | |
1375 | void | |
1376 | unset_chcap_usage_counts(struct Client *serv_p) | |
1377 | { | |
1378 | int n; | |
1379 | ||
1380 | for (n = 0; n < NCHCAP_COMBOS; n++) | |
1381 | { | |
1382 | if(IsCapable(serv_p, chcap_combos[n].cap_yes) && | |
1383 | NotCapable(serv_p, chcap_combos[n].cap_no)) | |
1384 | { | |
1385 | /* Hopefully capabs can't change dynamically or anything... */ | |
1386 | s_assert(chcap_combos[n].count > 0); | |
1387 | ||
1388 | if(chcap_combos[n].count > 0) | |
1389 | chcap_combos[n].count--; | |
1390 | return; | |
1391 | } | |
1392 | } | |
1393 | ||
1394 | /* This should be impossible -A1kmm. */ | |
1395 | s_assert(0); | |
1396 | } | |
1397 | ||
1398 | /* void send_cap_mode_changes(struct Client *client_p, | |
1399 | * struct Client *source_p, | |
1400 | * struct Channel *chptr, int cap, int nocap) | |
1401 | * Input: The client sending(client_p), the source client(source_p), | |
1402 | * the channel to send mode changes for(chptr) | |
1403 | * Output: None. | |
1404 | * Side-effects: Sends the appropriate mode changes to capable servers. | |
1405 | * | |
1406 | * Reverted back to my original design, except that we now keep a count | |
1407 | * of the number of servers which each combination as an optimisation, so | |
1408 | * the capabs combinations which are not needed are not worked out. -A1kmm | |
1409 | */ | |
1410 | void | |
1411 | send_cap_mode_changes(struct Client *client_p, struct Client *source_p, | |
1412 | struct Channel *chptr, struct ChModeChange mode_changes[], int mode_count) | |
1413 | { | |
1414 | static char modebuf[BUFSIZE]; | |
1415 | static char parabuf[BUFSIZE]; | |
1416 | int i, mbl, pbl, nc, mc, preflen, len; | |
1417 | char *pbuf; | |
1418 | const char *arg; | |
1419 | int dir; | |
1420 | int j; | |
1421 | int cap; | |
1422 | int nocap; | |
1423 | int arglen; | |
1424 | ||
1425 | /* Now send to servers... */ | |
1426 | for (j = 0; j < NCHCAP_COMBOS; j++) | |
1427 | { | |
1428 | if(chcap_combos[j].count == 0) | |
1429 | continue; | |
1430 | ||
1431 | mc = 0; | |
1432 | nc = 0; | |
1433 | pbl = 0; | |
1434 | parabuf[0] = 0; | |
1435 | pbuf = parabuf; | |
1436 | dir = MODE_QUERY; | |
1437 | ||
1438 | cap = chcap_combos[j].cap_yes; | |
1439 | nocap = chcap_combos[j].cap_no; | |
1440 | ||
9f9b4d7b WP |
1441 | mbl = preflen = rb_sprintf(modebuf, ":%s TMODE %ld %s ", |
1442 | use_id(source_p), (long) chptr->channelts, | |
1443 | chptr->chname); | |
212380e3 | 1444 | |
1445 | /* loop the list of - modes we have */ | |
1446 | for (i = 0; i < mode_count; i++) | |
1447 | { | |
1448 | /* if they dont support the cap we need, or they do support a cap they | |
1449 | * cant have, then dont add it to the modebuf.. that way they wont see | |
1450 | * the mode | |
1451 | */ | |
1452 | if((mode_changes[i].letter == 0) || | |
1453 | ((cap & mode_changes[i].caps) != mode_changes[i].caps) | |
1454 | || ((nocap & mode_changes[i].nocaps) != mode_changes[i].nocaps)) | |
1455 | continue; | |
1456 | ||
7592f950 JT |
1457 | if(!EmptyString(mode_changes[i].id)) |
1458 | arg = mode_changes[i].id; | |
1459 | else | |
1460 | arg = mode_changes[i].arg; | |
212380e3 | 1461 | |
1462 | if(arg) | |
1463 | { | |
1464 | arglen = strlen(arg); | |
1465 | ||
1466 | /* dont even think about it! --fl */ | |
1467 | if(arglen > MODEBUFLEN - 5) | |
1468 | continue; | |
1469 | } | |
1470 | ||
1471 | /* if we're creeping past the buf size, we need to send it and make | |
1472 | * another line for the other modes | |
1473 | * XXX - this could give away server topology with uids being | |
1474 | * different lengths, but not much we can do, except possibly break | |
1475 | * them as if they were the longest of the nick or uid at all times, | |
1476 | * which even then won't work as we don't always know the uid -A1kmm. | |
1477 | */ | |
1478 | if(arg && ((mc == MAXMODEPARAMSSERV) || | |
1479 | ((mbl + pbl + arglen + 4) > (BUFSIZE - 3)))) | |
1480 | { | |
1481 | if(nc != 0) | |
1482 | sendto_server(client_p, chptr, cap, nocap, | |
1483 | "%s %s", modebuf, parabuf); | |
1484 | nc = 0; | |
1485 | mc = 0; | |
1486 | ||
1487 | mbl = preflen; | |
1488 | pbl = 0; | |
1489 | pbuf = parabuf; | |
1490 | parabuf[0] = 0; | |
1491 | dir = MODE_QUERY; | |
1492 | } | |
1493 | ||
1494 | if(dir != mode_changes[i].dir) | |
1495 | { | |
1496 | modebuf[mbl++] = (mode_changes[i].dir == MODE_ADD) ? '+' : '-'; | |
1497 | dir = mode_changes[i].dir; | |
1498 | } | |
1499 | ||
1500 | modebuf[mbl++] = mode_changes[i].letter; | |
1501 | modebuf[mbl] = 0; | |
1502 | nc++; | |
1503 | ||
1504 | if(arg != NULL) | |
1505 | { | |
38e6acdd | 1506 | len = rb_sprintf(pbuf, "%s ", arg); |
212380e3 | 1507 | pbuf += len; |
1508 | pbl += len; | |
1509 | mc++; | |
1510 | } | |
1511 | } | |
1512 | ||
1513 | if(pbl && parabuf[pbl - 1] == ' ') | |
1514 | parabuf[pbl - 1] = 0; | |
1515 | ||
1516 | if(nc != 0) | |
1517 | sendto_server(client_p, chptr, cap, nocap, "%s %s", modebuf, parabuf); | |
1518 | } | |
1519 | } | |
080bb5cf JH |
1520 | |
1521 | /* Check what we will forward to, without sending any notices to the user | |
1522 | * -- jilles | |
1523 | */ | |
1524 | struct Channel * | |
1525 | check_forward(struct Client *source_p, struct Channel *chptr, | |
1526 | char *key) | |
1527 | { | |
1528 | int depth = 0, i; | |
1529 | ||
1530 | /* User is +Q */ | |
1531 | if (IsNoForward(source_p)) | |
1532 | return NULL; | |
1533 | ||
1534 | while (depth < 16) | |
1535 | { | |
1536 | chptr = find_channel(chptr->mode.forward); | |
1537 | /* Can only forward to existing channels */ | |
1538 | if (chptr == NULL) | |
1539 | return NULL; | |
1540 | /* Already on there, show original error message */ | |
1541 | if (IsMember(source_p, chptr)) | |
1542 | return NULL; | |
1543 | /* Juped. Sending a warning notice would be unfair */ | |
1544 | if (hash_find_resv(chptr->chname)) | |
1545 | return NULL; | |
1546 | /* Don't forward to +Q channel */ | |
1547 | if (chptr->mode.mode & MODE_DISFORWARD) | |
1548 | return NULL; | |
1549 | i = can_join(source_p, chptr, key); | |
1550 | if (i == 0) | |
1551 | return chptr; | |
1552 | if (i != ERR_INVITEONLYCHAN && i != ERR_NEEDREGGEDNICK && i != ERR_THROTTLE && i != ERR_CHANNELISFULL) | |
1553 | return NULL; | |
1554 | depth++; | |
1555 | } | |
1556 | ||
1557 | return NULL; | |
1558 | } | |
67b90240 | 1559 | |
9230426e JH |
1560 | /* |
1561 | * do_join_0 | |
1562 | * | |
1563 | * inputs - pointer to client doing join 0 | |
1564 | * output - NONE | |
1565 | * side effects - Use has decided to join 0. This is legacy | |
1566 | * from the days when channels were numbers not names. *sigh* | |
9230426e JH |
1567 | */ |
1568 | void | |
1569 | do_join_0(struct Client *client_p, struct Client *source_p) | |
1570 | { | |
1571 | struct membership *msptr; | |
1572 | struct Channel *chptr = NULL; | |
1573 | rb_dlink_node *ptr; | |
1574 | ||
1575 | /* Finish the flood grace period... */ | |
1576 | if(MyClient(source_p) && !IsFloodDone(source_p)) | |
1577 | flood_endgrace(source_p); | |
1578 | ||
1579 | sendto_server(client_p, NULL, CAP_TS6, NOCAPS, ":%s JOIN 0", use_id(source_p)); | |
1580 | ||
aa35afbb JH |
1581 | while((ptr = source_p->user->channel.head)) |
1582 | { | |
9230426e JH |
1583 | if(source_p->user->channel.head && MyConnect(source_p) && |
1584 | !IsOper(source_p) && !IsExemptSpambot(source_p)) | |
1585 | check_spambot_warning(source_p, NULL); | |
1586 | ||
9230426e JH |
1587 | msptr = ptr->data; |
1588 | chptr = msptr->chptr; | |
1589 | sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s PART %s", | |
1590 | source_p->name, | |
1591 | source_p->username, source_p->host, chptr->chname); | |
1592 | remove_user_from_channel(msptr); | |
1593 | } | |
1594 | } | |
1595 | ||
1596 | int | |
1597 | check_channel_name_loc(struct Client *source_p, const char *name) | |
1598 | { | |
aa35afbb JH |
1599 | const char *p; |
1600 | ||
9230426e JH |
1601 | s_assert(name != NULL); |
1602 | if(EmptyString(name)) | |
1603 | return 0; | |
1604 | ||
1605 | if(ConfigFileEntry.disable_fake_channels && !IsOper(source_p)) | |
1606 | { | |
aa35afbb | 1607 | for(p = name; *p; ++p) |
9230426e | 1608 | { |
aa35afbb | 1609 | if(!IsChanChar(*p) || IsFakeChanChar(*p)) |
9230426e JH |
1610 | return 0; |
1611 | } | |
1612 | } | |
1613 | else | |
1614 | { | |
aa35afbb | 1615 | for(p = name; *p; ++p) |
9230426e | 1616 | { |
aa35afbb | 1617 | if(!IsChanChar(*p)) |
9230426e JH |
1618 | return 0; |
1619 | } | |
1620 | } | |
1621 | ||
aa35afbb JH |
1622 | if(ConfigChannel.only_ascii_channels) |
1623 | { | |
1624 | for(p = name; *p; ++p) | |
1625 | if(*p < 33 || *p > 126) | |
1626 | return 0; | |
1627 | } | |
1628 | ||
1629 | ||
9230426e JH |
1630 | return 1; |
1631 | } | |
1632 | ||
824455ab | 1633 | void user_join(struct Client * client_p, struct Client * source_p, const char * channels, const char * keys) |
67b90240 JH |
1634 | { |
1635 | static char jbuf[BUFSIZE]; | |
1636 | struct Channel *chptr = NULL; | |
1637 | struct ConfItem *aconf; | |
1638 | char *name; | |
1639 | char *key = NULL; | |
1640 | const char *modes; | |
1641 | int i, flags = 0; | |
1642 | char *p = NULL, *p2 = NULL; | |
1643 | char *chanlist; | |
1644 | char *mykey; | |
67b90240 JH |
1645 | |
1646 | jbuf[0] = '\0'; | |
1647 | ||
1648 | if(channels == NULL) | |
1649 | return; | |
1650 | ||
1651 | /* rebuild the list of channels theyre supposed to be joining. | |
1652 | * this code has a side effect of losing keys, but.. | |
1653 | */ | |
1654 | chanlist = LOCAL_COPY(channels); | |
1655 | for(name = rb_strtok_r(chanlist, ",", &p); name; name = rb_strtok_r(NULL, ",", &p)) | |
1656 | { | |
1657 | /* check the length and name of channel is ok */ | |
1658 | if(!check_channel_name_loc(source_p, name) || (strlen(name) > LOC_CHANNELLEN)) | |
1659 | { | |
1660 | sendto_one_numeric(source_p, ERR_BADCHANNAME, | |
1661 | form_str(ERR_BADCHANNAME), (unsigned char *) name); | |
1662 | continue; | |
1663 | } | |
1664 | ||
1665 | /* join 0 parts all channels */ | |
1666 | if(*name == '0' && (name[1] == ',' || name[1] == '\0') && name == chanlist) | |
1667 | { | |
1668 | (void) strcpy(jbuf, "0"); | |
1669 | continue; | |
1670 | } | |
1671 | ||
1672 | /* check it begins with # or &, and local chans are disabled */ | |
0eceaff1 G |
1673 | else if(!IsChannelName(name) || |
1674 | ( !ConfigChannel.use_local_channels && name[0] == '&')) | |
67b90240 JH |
1675 | { |
1676 | sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, | |
1677 | form_str(ERR_NOSUCHCHANNEL), name); | |
1678 | continue; | |
1679 | } | |
1680 | ||
1681 | /* see if its resv'd */ | |
1682 | if(!IsExemptResv(source_p) && (aconf = hash_find_resv(name))) | |
1683 | { | |
1684 | sendto_one_numeric(source_p, ERR_BADCHANNAME, | |
1685 | form_str(ERR_BADCHANNAME), name); | |
1686 | ||
1687 | /* dont warn for opers */ | |
1688 | if(!IsExemptJupe(source_p) && !IsOper(source_p)) | |
1689 | sendto_realops_snomask(SNO_SPY, L_NETWIDE, | |
1690 | "User %s (%s@%s) is attempting to join locally juped channel %s (%s)", | |
1691 | source_p->name, source_p->username, | |
1692 | source_p->orighost, name, aconf->passwd); | |
1693 | /* dont update tracking for jupe exempt users, these | |
1694 | * are likely to be spamtrap leaves | |
1695 | */ | |
1696 | else if(IsExemptJupe(source_p)) | |
1697 | aconf->port--; | |
1698 | ||
1699 | continue; | |
1700 | } | |
1701 | ||
1702 | if(splitmode && !IsOper(source_p) && (*name != '&') && | |
1703 | ConfigChannel.no_join_on_split) | |
1704 | { | |
1705 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
1706 | me.name, source_p->name, name); | |
1707 | continue; | |
1708 | } | |
1709 | ||
1710 | if(*jbuf) | |
1711 | (void) strcat(jbuf, ","); | |
1712 | (void) rb_strlcat(jbuf, name, sizeof(jbuf)); | |
1713 | } | |
1714 | ||
1715 | if(keys != NULL) | |
1716 | { | |
1717 | mykey = LOCAL_COPY(keys); | |
1718 | key = rb_strtok_r(mykey, ",", &p2); | |
1719 | } | |
1720 | ||
1721 | for(name = rb_strtok_r(jbuf, ",", &p); name; | |
1722 | key = (key) ? rb_strtok_r(NULL, ",", &p2) : NULL, name = rb_strtok_r(NULL, ",", &p)) | |
1723 | { | |
1724 | hook_data_channel_activity hook_info; | |
1725 | ||
1726 | /* JOIN 0 simply parts all channels the user is in */ | |
1727 | if(*name == '0' && !atoi(name)) | |
1728 | { | |
1729 | if(source_p->user->channel.head == NULL) | |
1730 | continue; | |
1731 | ||
1732 | do_join_0(&me, source_p); | |
1733 | continue; | |
1734 | } | |
1735 | ||
1736 | /* look for the channel */ | |
1737 | if((chptr = find_channel(name)) != NULL) | |
1738 | { | |
1739 | if(IsMember(source_p, chptr)) | |
1740 | continue; | |
1741 | ||
1742 | flags = 0; | |
1743 | } | |
1744 | else | |
1745 | { | |
1746 | hook_data_client_approval moduledata; | |
1747 | ||
1748 | moduledata.client = source_p; | |
1749 | moduledata.approved = 0; | |
1750 | ||
1751 | call_hook(h_can_create_channel, &moduledata); | |
1752 | ||
1753 | if(moduledata.approved != 0) | |
1754 | { | |
1755 | sendto_one(source_p, form_str(moduledata.approved), | |
1756 | me.name, source_p->name, name); | |
1757 | continue; | |
1758 | } | |
1759 | ||
1760 | if(splitmode && !IsOper(source_p) && (*name != '&') && | |
1761 | ConfigChannel.no_create_on_split) | |
1762 | { | |
1763 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
1764 | me.name, source_p->name, name); | |
1765 | continue; | |
1766 | } | |
1767 | ||
1768 | flags = CHFL_CHANOP; | |
1769 | } | |
1770 | ||
1771 | if((rb_dlink_list_length(&source_p->user->channel) >= | |
1772 | (unsigned long) ConfigChannel.max_chans_per_user) && | |
1773 | (!IsOper(source_p) || | |
1774 | (rb_dlink_list_length(&source_p->user->channel) >= | |
1775 | (unsigned long) ConfigChannel.max_chans_per_user * 3))) | |
1776 | { | |
1777 | sendto_one(source_p, form_str(ERR_TOOMANYCHANNELS), | |
1778 | me.name, source_p->name, name); | |
67b90240 JH |
1779 | return; |
1780 | } | |
1781 | ||
67b90240 JH |
1782 | if(chptr == NULL) /* If I already have a chptr, no point doing this */ |
1783 | { | |
1784 | chptr = get_or_create_channel(source_p, name, NULL); | |
1785 | ||
1786 | if(chptr == NULL) | |
1787 | { | |
1788 | sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE), | |
1789 | me.name, source_p->name, name); | |
67b90240 JH |
1790 | continue; |
1791 | } | |
1792 | } | |
1793 | ||
67b90240 JH |
1794 | /* can_join checks for +i key, bans etc */ |
1795 | if((i = can_join(source_p, chptr, key))) | |
1796 | { | |
1797 | if ((i != ERR_NEEDREGGEDNICK && i != ERR_THROTTLE && i != ERR_INVITEONLYCHAN && i != ERR_CHANNELISFULL) || | |
1798 | (!ConfigChannel.use_forward || (chptr = check_forward(source_p, chptr, key)) == NULL)) | |
1799 | { | |
1800 | /* might be wrong, but is there any other better location for such? | |
1801 | * see extensions/chm_operonly.c for other comments on this | |
1802 | * -- dwr | |
1803 | */ | |
1804 | if(i != ERR_CUSTOM) | |
1805 | sendto_one(source_p, form_str(i), me.name, source_p->name, name); | |
1806 | ||
67b90240 JH |
1807 | continue; |
1808 | } | |
1809 | ||
1810 | sendto_one_numeric(source_p, ERR_LINKCHANNEL, form_str(ERR_LINKCHANNEL), name, chptr->chname); | |
1811 | } | |
aa35afbb JH |
1812 | |
1813 | if(flags == 0 && | |
1814 | !IsOper(source_p) && !IsExemptSpambot(source_p)) | |
1815 | check_spambot_warning(source_p, name); | |
67b90240 JH |
1816 | |
1817 | /* add the user to the channel */ | |
1818 | add_user_to_channel(chptr, source_p, flags); | |
1819 | if (chptr->mode.join_num && | |
1820 | rb_current_time() - chptr->join_delta >= chptr->mode.join_time) | |
1821 | { | |
1822 | chptr->join_count = 0; | |
1823 | chptr->join_delta = rb_current_time(); | |
1824 | } | |
1825 | chptr->join_count++; | |
1826 | ||
1827 | /* we send the user their join here, because we could have to | |
1828 | * send a mode out next. | |
1829 | */ | |
1830 | sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s JOIN :%s", | |
1831 | source_p->name, | |
1832 | source_p->username, source_p->host, chptr->chname); | |
1833 | ||
1834 | /* its a new channel, set +nt and burst. */ | |
1835 | if(flags & CHFL_CHANOP) | |
1836 | { | |
1837 | chptr->channelts = rb_current_time(); | |
13ec57db JH |
1838 | |
1839 | /* autochanmodes stuff */ | |
1840 | if(ConfigChannel.autochanmodes) | |
1841 | { | |
1842 | char * ch; | |
1843 | for(ch = ConfigChannel.autochanmodes; *ch; *ch++) | |
1844 | { | |
1845 | chptr->mode.mode |= chmode_table[*ch].mode_type; | |
1846 | } | |
1847 | } | |
1848 | else | |
1849 | { | |
1850 | chptr->mode.mode |= MODE_TOPICLIMIT; | |
1851 | chptr->mode.mode |= MODE_NOPRIVMSGS; | |
1852 | } | |
1853 | ||
67b90240 JH |
1854 | modes = channel_modes(chptr, &me); |
1855 | ||
1856 | sendto_channel_local(ONLY_CHANOPS, chptr, ":%s MODE %s %s", | |
1857 | me.name, chptr->chname, modes); | |
1858 | ||
1859 | sendto_server(client_p, chptr, CAP_TS6, NOCAPS, | |
1860 | ":%s SJOIN %ld %s %s :@%s", | |
1861 | me.id, (long) chptr->channelts, | |
1862 | chptr->chname, modes, source_p->id); | |
1863 | } | |
1864 | else | |
1865 | { | |
1866 | sendto_server(client_p, chptr, CAP_TS6, NOCAPS, | |
1867 | ":%s JOIN %ld %s +", | |
1868 | use_id(source_p), (long) chptr->channelts, | |
1869 | chptr->chname); | |
1870 | } | |
1871 | ||
1872 | del_invite(chptr, source_p); | |
1873 | ||
1874 | if(chptr->topic != NULL) | |
1875 | { | |
1876 | sendto_one(source_p, form_str(RPL_TOPIC), me.name, | |
1877 | source_p->name, chptr->chname, chptr->topic); | |
1878 | ||
1879 | sendto_one(source_p, form_str(RPL_TOPICWHOTIME), | |
1880 | me.name, source_p->name, chptr->chname, | |
1881 | chptr->topic_info, chptr->topic_time); | |
1882 | } | |
1883 | ||
1884 | channel_member_names(chptr, source_p, 1); | |
1885 | ||
67b90240 JH |
1886 | hook_info.client = source_p; |
1887 | hook_info.chptr = chptr; | |
1888 | hook_info.key = key; | |
1889 | call_hook(h_channel_join, &hook_info); | |
1890 | } | |
1891 | ||
1892 | return; | |
1893 | } |