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