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Commit | Line | Data |
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212380e3 AC |
1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * channel.c: Controls channels. | |
4 | * | |
55abcbb2 KB |
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 | |
212380e3 AC |
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 | |
212380e3 AC |
23 | */ |
24 | ||
25 | #include "stdinc.h" | |
212380e3 | 26 | #include "channel.h" |
392ae75c | 27 | #include "chmode.h" |
212380e3 | 28 | #include "client.h" |
212380e3 AC |
29 | #include "hash.h" |
30 | #include "hook.h" | |
4562c604 | 31 | #include "match.h" |
212380e3 AC |
32 | #include "ircd.h" |
33 | #include "numeric.h" | |
34 | #include "s_serv.h" /* captab */ | |
35 | #include "s_user.h" | |
36 | #include "send.h" | |
37 | #include "whowas.h" | |
38 | #include "s_conf.h" /* ConfigFileEntry, ConfigChannel */ | |
39 | #include "s_newconf.h" | |
4016731b | 40 | #include "logger.h" |
77d3d2db | 41 | #include "s_assert.h" |
212380e3 | 42 | |
18e4d421 | 43 | struct config_channel_entry ConfigChannel; |
c3d10343 | 44 | rb_dlink_list global_channel_list; |
b617afdc VY |
45 | static rb_bh *channel_heap; |
46 | static rb_bh *ban_heap; | |
47 | static rb_bh *topic_heap; | |
48 | static rb_bh *member_heap; | |
49 | ||
212380e3 AC |
50 | static void free_topic(struct Channel *chptr); |
51 | ||
52 | static int h_can_join; | |
0aa36c5f | 53 | static int h_can_send; |
749d8c11 | 54 | int h_get_channel_access; |
212380e3 AC |
55 | |
56 | /* init_channels() | |
57 | * | |
58 | * input - | |
59 | * output - | |
60 | * side effects - initialises the various blockheaps | |
61 | */ | |
62 | void | |
63 | init_channels(void) | |
64 | { | |
c608a061 AC |
65 | channel_heap = rb_bh_create(sizeof(struct Channel), CHANNEL_HEAP_SIZE, "channel_heap"); |
66 | ban_heap = rb_bh_create(sizeof(struct Ban), BAN_HEAP_SIZE, "ban_heap"); | |
67 | topic_heap = rb_bh_create(TOPICLEN + 1 + USERHOST_REPLYLEN, TOPIC_HEAP_SIZE, "topic_heap"); | |
68 | member_heap = rb_bh_create(sizeof(struct membership), MEMBER_HEAP_SIZE, "member_heap"); | |
212380e3 AC |
69 | |
70 | h_can_join = register_hook("can_join"); | |
0aa36c5f | 71 | h_can_send = register_hook("can_send"); |
749d8c11 | 72 | h_get_channel_access = register_hook("get_channel_access"); |
212380e3 AC |
73 | } |
74 | ||
75 | /* | |
76 | * allocate_channel - Allocates a channel | |
77 | */ | |
78 | struct Channel * | |
79 | allocate_channel(const char *chname) | |
80 | { | |
81 | struct Channel *chptr; | |
398b6a73 | 82 | chptr = rb_bh_alloc(channel_heap); |
47a03750 | 83 | chptr->chname = rb_strdup(chname); |
212380e3 AC |
84 | return (chptr); |
85 | } | |
86 | ||
87 | void | |
88 | free_channel(struct Channel *chptr) | |
89 | { | |
637c4932 | 90 | rb_free(chptr->chname); |
78e6b731 | 91 | rb_free(chptr->mode_lock); |
398b6a73 | 92 | rb_bh_free(channel_heap, chptr); |
212380e3 AC |
93 | } |
94 | ||
95 | struct Ban * | |
765d839d | 96 | allocate_ban(const char *banstr, const char *who, const char *forward) |
212380e3 AC |
97 | { |
98 | struct Ban *bptr; | |
398b6a73 | 99 | bptr = rb_bh_alloc(ban_heap); |
47a03750 VY |
100 | bptr->banstr = rb_strdup(banstr); |
101 | bptr->who = rb_strdup(who); | |
765d839d | 102 | bptr->forward = forward ? rb_strdup(forward) : NULL; |
212380e3 AC |
103 | |
104 | return (bptr); | |
105 | } | |
106 | ||
107 | void | |
108 | free_ban(struct Ban *bptr) | |
109 | { | |
637c4932 VY |
110 | rb_free(bptr->banstr); |
111 | rb_free(bptr->who); | |
765d839d | 112 | rb_free(bptr->forward); |
398b6a73 | 113 | rb_bh_free(ban_heap, bptr); |
212380e3 AC |
114 | } |
115 | ||
27912fd4 AC |
116 | /* |
117 | * send_channel_join() | |
118 | * | |
119 | * input - channel to join, client joining. | |
120 | * output - none | |
121 | * side effects - none | |
122 | */ | |
123 | void | |
124 | send_channel_join(struct Channel *chptr, struct Client *client_p) | |
125 | { | |
126 | if (!IsClient(client_p)) | |
127 | return; | |
128 | ||
4b1cce65 | 129 | sendto_channel_local_with_capability(client_p, ALL_MEMBERS, NOCAPS, CLICAP_EXTENDED_JOIN, chptr, ":%s!%s@%s JOIN %s", |
92052a5c AC |
130 | client_p->name, client_p->username, client_p->host, chptr->chname); |
131 | ||
4b1cce65 | 132 | sendto_channel_local_with_capability(client_p, ALL_MEMBERS, CLICAP_EXTENDED_JOIN, NOCAPS, chptr, ":%s!%s@%s JOIN %s %s :%s", |
92052a5c AC |
133 | client_p->name, client_p->username, client_p->host, chptr->chname, |
134 | EmptyString(client_p->user->suser) ? "*" : client_p->user->suser, | |
26e9dd93 | 135 | client_p->info); |
c5bbc603 KB |
136 | |
137 | /* Send away message to away-notify enabled clients. */ | |
138 | if (client_p->user->away) | |
139 | sendto_channel_local_with_capability_butone(client_p, ALL_MEMBERS, CLICAP_AWAY_NOTIFY, NOCAPS, chptr, | |
140 | ":%s!%s@%s AWAY :%s", client_p->name, client_p->username, | |
141 | client_p->host, client_p->user->away); | |
27912fd4 | 142 | } |
212380e3 AC |
143 | |
144 | /* find_channel_membership() | |
145 | * | |
146 | * input - channel to find them in, client to find | |
147 | * output - membership of client in channel, else NULL | |
148 | * side effects - | |
149 | */ | |
150 | struct membership * | |
151 | find_channel_membership(struct Channel *chptr, struct Client *client_p) | |
152 | { | |
153 | struct membership *msptr; | |
330fc5c1 | 154 | rb_dlink_node *ptr; |
212380e3 AC |
155 | |
156 | if(!IsClient(client_p)) | |
157 | return NULL; | |
158 | ||
159 | /* Pick the most efficient list to use to be nice to things like | |
160 | * CHANSERV which could be in a large number of channels | |
161 | */ | |
330fc5c1 | 162 | if(rb_dlink_list_length(&chptr->members) < rb_dlink_list_length(&client_p->user->channel)) |
212380e3 | 163 | { |
5cefa1d6 | 164 | RB_DLINK_FOREACH(ptr, chptr->members.head) |
212380e3 AC |
165 | { |
166 | msptr = ptr->data; | |
167 | ||
168 | if(msptr->client_p == client_p) | |
169 | return msptr; | |
170 | } | |
171 | } | |
172 | else | |
173 | { | |
5cefa1d6 | 174 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) |
212380e3 AC |
175 | { |
176 | msptr = ptr->data; | |
177 | ||
178 | if(msptr->chptr == chptr) | |
179 | return msptr; | |
180 | } | |
181 | } | |
182 | ||
183 | return NULL; | |
184 | } | |
185 | ||
186 | /* find_channel_status() | |
187 | * | |
188 | * input - membership to get status for, whether we can combine flags | |
189 | * output - flags of user on channel | |
190 | * side effects - | |
191 | */ | |
192 | const char * | |
193 | find_channel_status(struct membership *msptr, int combine) | |
194 | { | |
195 | static char buffer[3]; | |
196 | char *p; | |
197 | ||
198 | p = buffer; | |
199 | ||
200 | if(is_chanop(msptr)) | |
201 | { | |
202 | if(!combine) | |
203 | return "@"; | |
204 | *p++ = '@'; | |
205 | } | |
206 | ||
207 | if(is_voiced(msptr)) | |
208 | *p++ = '+'; | |
209 | ||
210 | *p = '\0'; | |
211 | return buffer; | |
212 | } | |
213 | ||
214 | /* add_user_to_channel() | |
215 | * | |
216 | * input - channel to add client to, client to add, channel flags | |
55abcbb2 | 217 | * output - |
212380e3 AC |
218 | * side effects - user is added to channel |
219 | */ | |
220 | void | |
221 | add_user_to_channel(struct Channel *chptr, struct Client *client_p, int flags) | |
222 | { | |
223 | struct membership *msptr; | |
25365ce7 | 224 | rb_dlink_node *p; |
212380e3 AC |
225 | |
226 | s_assert(client_p->user != NULL); | |
227 | if(client_p->user == NULL) | |
228 | return; | |
229 | ||
398b6a73 | 230 | msptr = rb_bh_alloc(member_heap); |
212380e3 AC |
231 | |
232 | msptr->chptr = chptr; | |
233 | msptr->client_p = client_p; | |
234 | msptr->flags = flags; | |
235 | ||
25365ce7 EK |
236 | RB_DLINK_FOREACH(p, client_p->user->channel.head) |
237 | { | |
238 | struct membership *ms2 = p->data; | |
239 | if (irccmp(chptr->chname, ms2->chptr->chname) < 0) | |
240 | break; | |
241 | } | |
242 | if (p == NULL) | |
243 | rb_dlinkAddTail(msptr, &msptr->usernode, &client_p->user->channel); | |
244 | else | |
245 | rb_dlinkAddBefore(p, msptr, &msptr->usernode, &client_p->user->channel); | |
246 | ||
330fc5c1 | 247 | rb_dlinkAdd(msptr, &msptr->channode, &chptr->members); |
212380e3 AC |
248 | |
249 | if(MyClient(client_p)) | |
330fc5c1 | 250 | rb_dlinkAdd(msptr, &msptr->locchannode, &chptr->locmembers); |
212380e3 AC |
251 | } |
252 | ||
253 | /* remove_user_from_channel() | |
254 | * | |
255 | * input - membership pointer to remove from channel | |
256 | * output - | |
257 | * side effects - membership (thus user) is removed from channel | |
258 | */ | |
259 | void | |
260 | remove_user_from_channel(struct membership *msptr) | |
261 | { | |
262 | struct Client *client_p; | |
263 | struct Channel *chptr; | |
264 | s_assert(msptr != NULL); | |
265 | if(msptr == NULL) | |
266 | return; | |
267 | ||
268 | client_p = msptr->client_p; | |
269 | chptr = msptr->chptr; | |
270 | ||
330fc5c1 AC |
271 | rb_dlinkDelete(&msptr->usernode, &client_p->user->channel); |
272 | rb_dlinkDelete(&msptr->channode, &chptr->members); | |
212380e3 AC |
273 | |
274 | if(client_p->servptr == &me) | |
330fc5c1 | 275 | rb_dlinkDelete(&msptr->locchannode, &chptr->locmembers); |
212380e3 | 276 | |
330fc5c1 | 277 | if(!(chptr->mode.mode & MODE_PERMANENT) && rb_dlink_list_length(&chptr->members) <= 0) |
212380e3 AC |
278 | destroy_channel(chptr); |
279 | ||
398b6a73 | 280 | rb_bh_free(member_heap, msptr); |
212380e3 AC |
281 | |
282 | return; | |
283 | } | |
284 | ||
285 | /* remove_user_from_channels() | |
286 | * | |
287 | * input - user to remove from all channels | |
288 | * output - | |
289 | * side effects - user is removed from all channels | |
290 | */ | |
291 | void | |
292 | remove_user_from_channels(struct Client *client_p) | |
293 | { | |
294 | struct Channel *chptr; | |
295 | struct membership *msptr; | |
330fc5c1 | 296 | rb_dlink_node *ptr; |
637c4932 | 297 | rb_dlink_node *next_ptr; |
212380e3 AC |
298 | |
299 | if(client_p == NULL) | |
300 | return; | |
301 | ||
637c4932 | 302 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, client_p->user->channel.head) |
212380e3 AC |
303 | { |
304 | msptr = ptr->data; | |
305 | chptr = msptr->chptr; | |
306 | ||
330fc5c1 | 307 | rb_dlinkDelete(&msptr->channode, &chptr->members); |
212380e3 AC |
308 | |
309 | if(client_p->servptr == &me) | |
330fc5c1 | 310 | rb_dlinkDelete(&msptr->locchannode, &chptr->locmembers); |
212380e3 | 311 | |
330fc5c1 | 312 | if(!(chptr->mode.mode & MODE_PERMANENT) && rb_dlink_list_length(&chptr->members) <= 0) |
212380e3 AC |
313 | destroy_channel(chptr); |
314 | ||
398b6a73 | 315 | rb_bh_free(member_heap, msptr); |
212380e3 AC |
316 | } |
317 | ||
318 | client_p->user->channel.head = client_p->user->channel.tail = NULL; | |
319 | client_p->user->channel.length = 0; | |
320 | } | |
321 | ||
322 | /* invalidate_bancache_user() | |
323 | * | |
324 | * input - user to invalidate ban cache for | |
325 | * output - | |
326 | * side effects - ban cache is invalidated for all memberships of that user | |
327 | * to be used after a nick change | |
328 | */ | |
329 | void | |
330 | invalidate_bancache_user(struct Client *client_p) | |
331 | { | |
332 | struct membership *msptr; | |
330fc5c1 | 333 | rb_dlink_node *ptr; |
212380e3 AC |
334 | |
335 | if(client_p == NULL) | |
336 | return; | |
337 | ||
5cefa1d6 | 338 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) |
212380e3 AC |
339 | { |
340 | msptr = ptr->data; | |
341 | msptr->bants = 0; | |
342 | msptr->flags &= ~CHFL_BANNED; | |
343 | } | |
344 | } | |
345 | ||
346 | /* check_channel_name() | |
347 | * | |
348 | * input - channel name | |
216f58a2 | 349 | * output - true if valid channel name, else false |
212380e3 AC |
350 | * side effects - |
351 | */ | |
3a46803f | 352 | bool |
212380e3 AC |
353 | check_channel_name(const char *name) |
354 | { | |
355 | s_assert(name != NULL); | |
356 | if(name == NULL) | |
3a46803f | 357 | return false; |
212380e3 AC |
358 | |
359 | for (; *name; ++name) | |
360 | { | |
361 | if(!IsChanChar(*name)) | |
3a46803f | 362 | return false; |
212380e3 AC |
363 | } |
364 | ||
3a46803f | 365 | return true; |
212380e3 AC |
366 | } |
367 | ||
368 | /* free_channel_list() | |
369 | * | |
330fc5c1 | 370 | * input - rb_dlink list to free |
212380e3 AC |
371 | * output - |
372 | * side effects - list of b/e/I modes is cleared | |
373 | */ | |
374 | void | |
330fc5c1 | 375 | free_channel_list(rb_dlink_list * list) |
212380e3 | 376 | { |
330fc5c1 | 377 | rb_dlink_node *ptr; |
637c4932 | 378 | rb_dlink_node *next_ptr; |
212380e3 AC |
379 | struct Ban *actualBan; |
380 | ||
637c4932 | 381 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) |
212380e3 AC |
382 | { |
383 | actualBan = ptr->data; | |
384 | free_ban(actualBan); | |
385 | } | |
386 | ||
387 | list->head = list->tail = NULL; | |
388 | list->length = 0; | |
389 | } | |
390 | ||
391 | /* destroy_channel() | |
392 | * | |
393 | * input - channel to destroy | |
394 | * output - | |
395 | * side effects - channel is obliterated | |
396 | */ | |
397 | void | |
398 | destroy_channel(struct Channel *chptr) | |
399 | { | |
637c4932 | 400 | rb_dlink_node *ptr, *next_ptr; |
212380e3 | 401 | |
637c4932 | 402 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->invites.head) |
212380e3 AC |
403 | { |
404 | del_invite(chptr, ptr->data); | |
405 | } | |
406 | ||
407 | /* free all bans/exceptions/denies */ | |
408 | free_channel_list(&chptr->banlist); | |
409 | free_channel_list(&chptr->exceptlist); | |
410 | free_channel_list(&chptr->invexlist); | |
fea1ad52 | 411 | free_channel_list(&chptr->quietlist); |
212380e3 AC |
412 | |
413 | /* Free the topic */ | |
414 | free_topic(chptr); | |
415 | ||
330fc5c1 | 416 | rb_dlinkDelete(&chptr->node, &global_channel_list); |
212380e3 AC |
417 | del_from_channel_hash(chptr->chname, chptr); |
418 | free_channel(chptr); | |
419 | } | |
420 | ||
421 | /* channel_pub_or_secret() | |
422 | * | |
423 | * input - channel | |
424 | * output - "=" if public, "@" if secret, else "*" | |
425 | * side effects - | |
426 | */ | |
427 | static const char * | |
428 | channel_pub_or_secret(struct Channel *chptr) | |
429 | { | |
430 | if(PubChannel(chptr)) | |
431 | return ("="); | |
432 | else if(SecretChannel(chptr)) | |
433 | return ("@"); | |
434 | return ("*"); | |
435 | } | |
436 | ||
e8a8d7a4 EK |
437 | int |
438 | iter_comm_channels_step(rb_dlink_node *pos1, rb_dlink_node *pos2, | |
439 | struct membership **ms1, struct membership **ms2, | |
440 | struct Channel **chptr) | |
441 | { | |
442 | *ms1 = pos1 ? pos1->data : NULL; | |
443 | *ms2 = pos2 ? pos2->data : NULL; | |
444 | ||
445 | /* we're at the end */ | |
446 | if (*ms1 == NULL && *ms2 == NULL) | |
447 | return 0; | |
448 | ||
449 | /* one side is at the end, keep stepping the other one */ | |
450 | if (*ms1 == NULL || *ms2 == NULL) | |
451 | { | |
452 | *chptr = *ms1 != NULL ? (*ms1)->chptr : (*ms2)->chptr; | |
453 | return 1; | |
454 | } | |
455 | ||
456 | /* common channel */ | |
457 | if ((*ms1)->chptr == (*ms2)->chptr) | |
458 | { | |
459 | *chptr = (*ms1)->chptr; | |
460 | return 1; | |
461 | } | |
462 | ||
463 | /* null out the channel that's further ahead; we'll get to it later */ | |
464 | if (irccmp((*ms1)->chptr->chname, (*ms2)->chptr->chname) > 0) | |
465 | { | |
466 | *ms1 = NULL; | |
467 | *chptr = (*ms2)->chptr; | |
468 | return 1; | |
469 | } | |
470 | else | |
471 | { | |
472 | *ms2 = NULL; | |
473 | *chptr = (*ms1)->chptr; | |
474 | return 1; | |
475 | } | |
476 | } | |
477 | ||
212380e3 AC |
478 | /* channel_member_names() |
479 | * | |
480 | * input - channel to list, client to list to, show endofnames | |
481 | * output - | |
482 | * side effects - client is given list of users on channel | |
483 | */ | |
484 | void | |
485 | channel_member_names(struct Channel *chptr, struct Client *client_p, int show_eon) | |
486 | { | |
487 | struct membership *msptr; | |
488 | struct Client *target_p; | |
330fc5c1 | 489 | rb_dlink_node *ptr; |
212380e3 AC |
490 | int is_member; |
491 | int stack = IsCapable(client_p, CLICAP_MULTI_PREFIX); | |
492 | ||
493 | if(ShowChannel(client_p, chptr)) | |
494 | { | |
495 | is_member = IsMember(client_p, chptr); | |
496 | ||
e51d9a67 DF |
497 | send_multiline_init(client_p, " ", form_str(RPL_NAMREPLY), |
498 | me.name, | |
499 | client_p->name, | |
500 | channel_pub_or_secret(chptr), | |
501 | chptr->chname); | |
212380e3 | 502 | |
5cefa1d6 | 503 | RB_DLINK_FOREACH(ptr, chptr->members.head) |
212380e3 AC |
504 | { |
505 | msptr = ptr->data; | |
506 | target_p = msptr->client_p; | |
507 | ||
508 | if(IsInvisible(target_p) && !is_member) | |
509 | continue; | |
510 | ||
1b54aa5c | 511 | if (IsCapable(client_p, CLICAP_USERHOST_IN_NAMES)) |
212380e3 | 512 | { |
e51d9a67 DF |
513 | send_multiline_item(client_p, "%s%s!%s@%s", |
514 | find_channel_status(msptr, stack), | |
515 | target_p->name, | |
516 | target_p->username, | |
517 | target_p->host); | |
1b54aa5c MT |
518 | } |
519 | else | |
520 | { | |
e51d9a67 DF |
521 | send_multiline_item(client_p, "%s%s", |
522 | find_channel_status(msptr, stack), | |
523 | target_p->name); | |
212380e3 | 524 | } |
212380e3 AC |
525 | } |
526 | ||
e51d9a67 | 527 | send_multiline_fini(client_p, NULL); |
212380e3 AC |
528 | } |
529 | ||
530 | if(show_eon) | |
531 | sendto_one(client_p, form_str(RPL_ENDOFNAMES), | |
532 | me.name, client_p->name, chptr->chname); | |
533 | } | |
534 | ||
535 | /* del_invite() | |
536 | * | |
537 | * input - channel to remove invite from, client to remove | |
538 | * output - | |
539 | * side effects - user is removed from invite list, if exists | |
540 | */ | |
541 | void | |
542 | del_invite(struct Channel *chptr, struct Client *who) | |
543 | { | |
330fc5c1 AC |
544 | rb_dlinkFindDestroy(who, &chptr->invites); |
545 | rb_dlinkFindDestroy(chptr, &who->user->invited); | |
212380e3 AC |
546 | } |
547 | ||
a14de124 | 548 | /* is_banned_list() |
212380e3 | 549 | * |
a14de124 JT |
550 | * input - channel to check bans for, ban list (banlist or quietlist), |
551 | * user to check bans against, optional prebuilt buffers, | |
552 | * optional forward channel pointer | |
212380e3 AC |
553 | * output - 1 if banned, else 0 |
554 | * side effects - | |
555 | */ | |
a14de124 JT |
556 | static int |
557 | is_banned_list(struct Channel *chptr, rb_dlink_list *list, | |
558 | struct Client *who, struct membership *msptr, | |
a7d4a0ab | 559 | const struct matchset *ms, const char **forward) |
212380e3 | 560 | { |
a7d4a0ab | 561 | struct matchset ms_; |
330fc5c1 | 562 | rb_dlink_node *ptr; |
212380e3 AC |
563 | struct Ban *actualBan = NULL; |
564 | struct Ban *actualExcept = NULL; | |
565 | ||
a7d4a0ab | 566 | if (!MyClient(who)) |
212380e3 AC |
567 | return 0; |
568 | ||
a7d4a0ab | 569 | if (ms == NULL) |
212380e3 | 570 | { |
a7d4a0ab EK |
571 | matchset_for_client(who, &ms_); |
572 | ms = &ms_; | |
1c60de97 | 573 | } |
212380e3 | 574 | |
a14de124 | 575 | RB_DLINK_FOREACH(ptr, list->head) |
212380e3 AC |
576 | { |
577 | actualBan = ptr->data; | |
a7d4a0ab | 578 | if (matches_mask(ms, actualBan->banstr)) |
212380e3 | 579 | break; |
a7d4a0ab EK |
580 | if (match_extban(actualBan->banstr, who, chptr, CHFL_BAN)) |
581 | break; | |
582 | actualBan = NULL; | |
212380e3 AC |
583 | } |
584 | ||
a7d4a0ab | 585 | if ((actualBan != NULL) && ConfigChannel.use_except) |
212380e3 | 586 | { |
5cefa1d6 | 587 | RB_DLINK_FOREACH(ptr, chptr->exceptlist.head) |
212380e3 AC |
588 | { |
589 | actualExcept = ptr->data; | |
590 | ||
591 | /* theyre exempted.. */ | |
a7d4a0ab | 592 | if (matches_mask(ms, actualExcept->banstr) || |
255233fc | 593 | match_extban(actualExcept->banstr, who, chptr, CHFL_EXCEPTION)) |
212380e3 AC |
594 | { |
595 | /* cache the fact theyre not banned */ | |
596 | if(msptr != NULL) | |
597 | { | |
598 | msptr->bants = chptr->bants; | |
599 | msptr->flags &= ~CHFL_BANNED; | |
600 | } | |
601 | ||
602 | return CHFL_EXCEPTION; | |
603 | } | |
604 | } | |
605 | } | |
606 | ||
607 | /* cache the banned/not banned status */ | |
608 | if(msptr != NULL) | |
609 | { | |
610 | msptr->bants = chptr->bants; | |
611 | ||
612 | if(actualBan != NULL) | |
613 | { | |
614 | msptr->flags |= CHFL_BANNED; | |
615 | return CHFL_BAN; | |
616 | } | |
617 | else | |
618 | { | |
619 | msptr->flags &= ~CHFL_BANNED; | |
620 | return 0; | |
621 | } | |
622 | } | |
623 | ||
765d839d EM |
624 | if (actualBan && actualBan->forward && forward) |
625 | *forward = actualBan->forward; | |
626 | ||
212380e3 AC |
627 | return ((actualBan ? CHFL_BAN : 0)); |
628 | } | |
629 | ||
a14de124 JT |
630 | /* is_banned() |
631 | * | |
632 | * input - channel to check bans for, user to check bans against | |
633 | * optional prebuilt buffers, optional forward channel pointer | |
634 | * output - 1 if banned, else 0 | |
635 | * side effects - | |
636 | */ | |
637 | int | |
638 | is_banned(struct Channel *chptr, struct Client *who, struct membership *msptr, | |
a7d4a0ab | 639 | const struct matchset *ms, const char **forward) |
a14de124 | 640 | { |
ed9f6a65 | 641 | #if 0 |
2f9687c4 AC |
642 | if (chptr->last_checked_client != NULL && |
643 | who == chptr->last_checked_client && | |
644 | chptr->last_checked_type == CHFL_BAN && | |
1e8138af | 645 | chptr->last_checked_ts > chptr->bants) |
2f9687c4 AC |
646 | return chptr->last_checked_result; |
647 | ||
bcbc6bd9 | 648 | chptr->last_checked_client = who; |
2f9687c4 AC |
649 | chptr->last_checked_type = CHFL_BAN; |
650 | chptr->last_checked_result = is_banned_list(chptr, &chptr->banlist, who, msptr, s, s2, forward); | |
651 | chptr->last_checked_ts = rb_current_time(); | |
652 | ||
653 | return chptr->last_checked_result; | |
ed9f6a65 | 654 | #else |
a7d4a0ab | 655 | return is_banned_list(chptr, &chptr->banlist, who, msptr, ms, forward); |
ed9f6a65 | 656 | #endif |
a14de124 JT |
657 | } |
658 | ||
212380e3 AC |
659 | /* is_quieted() |
660 | * | |
661 | * input - channel to check bans for, user to check bans against | |
662 | * optional prebuilt buffers | |
663 | * output - 1 if banned, else 0 | |
664 | * side effects - | |
665 | */ | |
666 | int | |
667 | is_quieted(struct Channel *chptr, struct Client *who, struct membership *msptr, | |
a7d4a0ab | 668 | const struct matchset *ms) |
212380e3 | 669 | { |
ed9f6a65 | 670 | #if 0 |
2f9687c4 AC |
671 | if (chptr->last_checked_client != NULL && |
672 | who == chptr->last_checked_client && | |
673 | chptr->last_checked_type == CHFL_QUIET && | |
1e8138af | 674 | chptr->last_checked_ts > chptr->bants) |
2f9687c4 AC |
675 | return chptr->last_checked_result; |
676 | ||
bcbc6bd9 | 677 | chptr->last_checked_client = who; |
2f9687c4 AC |
678 | chptr->last_checked_type = CHFL_QUIET; |
679 | chptr->last_checked_result = is_banned_list(chptr, &chptr->quietlist, who, msptr, s, s2, NULL); | |
680 | chptr->last_checked_ts = rb_current_time(); | |
681 | ||
682 | return chptr->last_checked_result; | |
ed9f6a65 | 683 | #else |
a7d4a0ab | 684 | return is_banned_list(chptr, &chptr->quietlist, who, msptr, ms, NULL); |
ed9f6a65 | 685 | #endif |
212380e3 AC |
686 | } |
687 | ||
688 | /* can_join() | |
689 | * | |
690 | * input - client to check, channel to check for, key | |
765d839d | 691 | * output - reason for not being able to join, else 0, channel name to forward to |
212380e3 | 692 | * side effects - |
a63f7af7 | 693 | * caveats - this function should only be called on a local user. |
212380e3 AC |
694 | */ |
695 | int | |
fe74401b | 696 | can_join(struct Client *source_p, struct Channel *chptr, const char *key, const char **forward) |
212380e3 | 697 | { |
330fc5c1 AC |
698 | rb_dlink_node *invite = NULL; |
699 | rb_dlink_node *ptr; | |
212380e3 | 700 | struct Ban *invex = NULL; |
a7d4a0ab | 701 | struct matchset ms; |
1ebf4db4 | 702 | int i = 0; |
212380e3 AC |
703 | hook_data_channel moduledata; |
704 | ||
705 | s_assert(source_p->localClient != NULL); | |
706 | ||
8bb19bd7 AC |
707 | moduledata.client = source_p; |
708 | moduledata.chptr = chptr; | |
709 | moduledata.approved = 0; | |
710 | ||
a7d4a0ab | 711 | matchset_for_client(source_p, &ms); |
212380e3 | 712 | |
a7d4a0ab | 713 | if((is_banned(chptr, source_p, NULL, &ms, forward)) == CHFL_BAN) |
8bb19bd7 AC |
714 | { |
715 | moduledata.approved = ERR_BANNEDFROMCHAN; | |
716 | goto finish_join_check; | |
717 | } | |
212380e3 | 718 | |
765d839d EM |
719 | if(*chptr->mode.key && (EmptyString(key) || irccmp(chptr->mode.key, key))) |
720 | { | |
721 | moduledata.approved = ERR_BADCHANNELKEY; | |
722 | goto finish_join_check; | |
723 | } | |
724 | ||
725 | /* All checks from this point on will forward... */ | |
726 | if(forward) | |
727 | *forward = chptr->mode.forward; | |
728 | ||
212380e3 AC |
729 | if(chptr->mode.mode & MODE_INVITEONLY) |
730 | { | |
5cefa1d6 | 731 | RB_DLINK_FOREACH(invite, source_p->user->invited.head) |
212380e3 | 732 | { |
1ebf4db4 | 733 | if(invite->data == chptr) |
212380e3 AC |
734 | break; |
735 | } | |
1ebf4db4 | 736 | if(invite == NULL) |
212380e3 AC |
737 | { |
738 | if(!ConfigChannel.use_invex) | |
8bb19bd7 | 739 | moduledata.approved = ERR_INVITEONLYCHAN; |
5cefa1d6 | 740 | RB_DLINK_FOREACH(ptr, chptr->invexlist.head) |
212380e3 AC |
741 | { |
742 | invex = ptr->data; | |
a7d4a0ab EK |
743 | if (matches_mask(&ms, invex->banstr) || |
744 | match_extban(invex->banstr, source_p, chptr, CHFL_INVEX)) | |
212380e3 AC |
745 | break; |
746 | } | |
747 | if(ptr == NULL) | |
8bb19bd7 | 748 | moduledata.approved = ERR_INVITEONLYCHAN; |
212380e3 AC |
749 | } |
750 | } | |
751 | ||
212380e3 | 752 | if(chptr->mode.limit && |
330fc5c1 | 753 | rb_dlink_list_length(&chptr->members) >= (unsigned long) chptr->mode.limit) |
1ebf4db4 | 754 | i = ERR_CHANNELISFULL; |
212380e3 | 755 | if(chptr->mode.mode & MODE_REGONLY && EmptyString(source_p->user->suser)) |
1ebf4db4 | 756 | i = ERR_NEEDREGGEDNICK; |
212380e3 | 757 | /* join throttling stuff --nenolod */ |
1ebf4db4 | 758 | else if(chptr->mode.join_num > 0 && chptr->mode.join_time > 0) |
212380e3 | 759 | { |
55abcbb2 | 760 | if ((rb_current_time() - chptr->join_delta <= |
212380e3 AC |
761 | chptr->mode.join_time) && (chptr->join_count >= |
762 | chptr->mode.join_num)) | |
1ebf4db4 JT |
763 | i = ERR_THROTTLE; |
764 | } | |
765 | ||
766 | /* allow /invite to override +l/+r/+j also -- jilles */ | |
767 | if (i != 0 && invite == NULL) | |
768 | { | |
5cefa1d6 | 769 | RB_DLINK_FOREACH(invite, source_p->user->invited.head) |
1ebf4db4 JT |
770 | { |
771 | if(invite->data == chptr) | |
772 | break; | |
773 | } | |
774 | if (invite == NULL) | |
8bb19bd7 | 775 | moduledata.approved = i; |
212380e3 AC |
776 | } |
777 | ||
8bb19bd7 | 778 | finish_join_check: |
212380e3 AC |
779 | call_hook(h_can_join, &moduledata); |
780 | ||
781 | return moduledata.approved; | |
782 | } | |
783 | ||
784 | /* can_send() | |
785 | * | |
786 | * input - user to check in channel, membership pointer | |
787 | * output - whether can explicitly send or not, else CAN_SEND_NONOP | |
788 | * side effects - | |
789 | */ | |
790 | int | |
791 | can_send(struct Channel *chptr, struct Client *source_p, struct membership *msptr) | |
792 | { | |
0aa36c5f AC |
793 | hook_data_channel_approval moduledata; |
794 | ||
795 | moduledata.approved = CAN_SEND_NONOP; | |
202d4966 | 796 | moduledata.dir = MODE_QUERY; |
0aa36c5f | 797 | |
212380e3 AC |
798 | if(IsServer(source_p) || IsService(source_p)) |
799 | return CAN_SEND_OPV; | |
800 | ||
801 | if(MyClient(source_p) && hash_find_resv(chptr->chname) && | |
802 | !IsOper(source_p) && !IsExemptResv(source_p)) | |
0aa36c5f | 803 | moduledata.approved = CAN_SEND_NO; |
212380e3 AC |
804 | |
805 | if(msptr == NULL) | |
806 | { | |
807 | msptr = find_channel_membership(chptr, source_p); | |
808 | ||
809 | if(msptr == NULL) | |
810 | { | |
811 | /* if its +m or +n and theyre not in the channel, | |
812 | * they cant send. we dont check bans here because | |
813 | * theres no possibility of caching them --fl | |
814 | */ | |
815 | if(chptr->mode.mode & MODE_NOPRIVMSGS || chptr->mode.mode & MODE_MODERATED) | |
0aa36c5f | 816 | moduledata.approved = CAN_SEND_NO; |
212380e3 | 817 | else |
0aa36c5f | 818 | moduledata.approved = CAN_SEND_NONOP; |
b697041e AC |
819 | |
820 | return moduledata.approved; | |
212380e3 AC |
821 | } |
822 | } | |
823 | ||
212380e3 | 824 | if(chptr->mode.mode & MODE_MODERATED) |
0aa36c5f | 825 | moduledata.approved = CAN_SEND_NO; |
212380e3 AC |
826 | |
827 | if(MyClient(source_p)) | |
828 | { | |
829 | /* cached can_send */ | |
830 | if(msptr->bants == chptr->bants) | |
831 | { | |
832 | if(can_send_banned(msptr)) | |
0aa36c5f | 833 | moduledata.approved = CAN_SEND_NO; |
212380e3 | 834 | } |
a7d4a0ab EK |
835 | else if(is_banned(chptr, source_p, msptr, NULL, NULL) == CHFL_BAN |
836 | || is_quieted(chptr, source_p, msptr, NULL) == CHFL_BAN) | |
0aa36c5f | 837 | moduledata.approved = CAN_SEND_NO; |
212380e3 AC |
838 | } |
839 | ||
e06988c6 AC |
840 | if(is_chanop_voiced(msptr)) |
841 | moduledata.approved = CAN_SEND_OPV; | |
842 | ||
f4b52a0a EM |
843 | moduledata.client = source_p; |
844 | moduledata.chptr = msptr->chptr; | |
845 | moduledata.msptr = msptr; | |
846 | moduledata.target = NULL; | |
202d4966 | 847 | moduledata.dir = (moduledata.approved == CAN_SEND_NO) ? MODE_ADD : MODE_QUERY; |
f4b52a0a | 848 | |
0aa36c5f AC |
849 | call_hook(h_can_send, &moduledata); |
850 | ||
851 | return moduledata.approved; | |
212380e3 AC |
852 | } |
853 | ||
15484f02 BG |
854 | /* |
855 | * flood_attack_channel | |
856 | * inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC | |
857 | * says NOTICE must not auto reply | |
55abcbb2 | 858 | * - pointer to source Client |
3b9507d0 MU |
859 | * - pointer to target channel |
860 | * output - true if target is under flood attack | |
15484f02 BG |
861 | * side effects - check for flood attack on target chptr |
862 | */ | |
3b9507d0 | 863 | bool |
92fa29ce | 864 | flood_attack_channel(enum message_type msgtype, struct Client *source_p, struct Channel *chptr, char *chname) |
15484f02 BG |
865 | { |
866 | int delta; | |
867 | ||
868 | if(GlobalSetOptions.floodcount && MyClient(source_p)) | |
869 | { | |
870 | if((chptr->first_received_message_time + 1) < rb_current_time()) | |
871 | { | |
872 | delta = rb_current_time() - chptr->first_received_message_time; | |
873 | chptr->received_number_of_privmsgs -= delta; | |
874 | chptr->first_received_message_time = rb_current_time(); | |
875 | if(chptr->received_number_of_privmsgs <= 0) | |
876 | { | |
877 | chptr->received_number_of_privmsgs = 0; | |
878 | chptr->flood_noticed = 0; | |
879 | } | |
880 | } | |
881 | ||
882 | if((chptr->received_number_of_privmsgs >= GlobalSetOptions.floodcount) | |
883 | || chptr->flood_noticed) | |
884 | { | |
885 | if(chptr->flood_noticed == 0) | |
886 | { | |
887 | sendto_realops_snomask(SNO_BOTS, *chptr->chname == '&' ? L_ALL : L_NETWIDE, | |
888 | "Possible Flooder %s[%s@%s] on %s target: %s", | |
889 | source_p->name, source_p->username, | |
890 | source_p->orighost, | |
891 | source_p->servptr->name, chptr->chname); | |
892 | chptr->flood_noticed = 1; | |
893 | ||
894 | /* Add a bit of penalty */ | |
895 | chptr->received_number_of_privmsgs += 2; | |
896 | } | |
92fa29ce | 897 | if(MyClient(source_p) && (msgtype != MESSAGE_TYPE_NOTICE)) |
15484f02 BG |
898 | sendto_one(source_p, |
899 | ":%s NOTICE %s :*** Message to %s throttled due to flooding", | |
900 | me.name, source_p->name, chptr->chname); | |
3b9507d0 | 901 | return true; |
15484f02 BG |
902 | } |
903 | else | |
904 | chptr->received_number_of_privmsgs++; | |
905 | } | |
906 | ||
3b9507d0 | 907 | return false; |
15484f02 BG |
908 | } |
909 | ||
212380e3 AC |
910 | /* find_bannickchange_channel() |
911 | * Input: client to check | |
912 | * Output: channel preventing nick change | |
913 | */ | |
914 | struct Channel * | |
915 | find_bannickchange_channel(struct Client *client_p) | |
916 | { | |
917 | struct Channel *chptr; | |
918 | struct membership *msptr; | |
330fc5c1 | 919 | rb_dlink_node *ptr; |
a7d4a0ab | 920 | struct matchset ms; |
212380e3 AC |
921 | |
922 | if (!MyClient(client_p)) | |
923 | return NULL; | |
924 | ||
a7d4a0ab | 925 | matchset_for_client(client_p, &ms); |
212380e3 | 926 | |
5cefa1d6 | 927 | RB_DLINK_FOREACH(ptr, client_p->user->channel.head) |
212380e3 AC |
928 | { |
929 | msptr = ptr->data; | |
930 | chptr = msptr->chptr; | |
931 | if (is_chanop_voiced(msptr)) | |
932 | continue; | |
933 | /* cached can_send */ | |
934 | if (msptr->bants == chptr->bants) | |
935 | { | |
936 | if (can_send_banned(msptr)) | |
937 | return chptr; | |
938 | } | |
a7d4a0ab EK |
939 | else if (is_banned(chptr, client_p, msptr, &ms, NULL) == CHFL_BAN |
940 | || is_quieted(chptr, client_p, msptr, &ms) == CHFL_BAN) | |
212380e3 AC |
941 | return chptr; |
942 | } | |
943 | return NULL; | |
944 | } | |
945 | ||
946 | /* void check_spambot_warning(struct Client *source_p) | |
947 | * Input: Client to check, channel name or NULL if this is a part. | |
948 | * Output: none | |
949 | * Side-effects: Updates the client's oper_warn_count_down, warns the | |
950 | * IRC operators if necessary, and updates join_leave_countdown as | |
951 | * needed. | |
952 | */ | |
953 | void | |
954 | check_spambot_warning(struct Client *source_p, const char *name) | |
955 | { | |
956 | int t_delta; | |
957 | int decrement_count; | |
958 | if((GlobalSetOptions.spam_num && | |
959 | (source_p->localClient->join_leave_count >= GlobalSetOptions.spam_num))) | |
960 | { | |
961 | if(source_p->localClient->oper_warn_count_down > 0) | |
962 | source_p->localClient->oper_warn_count_down--; | |
963 | else | |
964 | source_p->localClient->oper_warn_count_down = 0; | |
e0c1f4ec JT |
965 | if(source_p->localClient->oper_warn_count_down == 0 && |
966 | name != NULL) | |
212380e3 AC |
967 | { |
968 | /* Its already known as a possible spambot */ | |
e0c1f4ec JT |
969 | sendto_realops_snomask(SNO_BOTS, L_NETWIDE, |
970 | "User %s (%s@%s) trying to join %s is a possible spambot", | |
971 | source_p->name, | |
972 | source_p->username, source_p->orighost, name); | |
212380e3 AC |
973 | source_p->localClient->oper_warn_count_down = OPER_SPAM_COUNTDOWN; |
974 | } | |
975 | } | |
976 | else | |
977 | { | |
978 | if((t_delta = | |
e3354945 | 979 | (rb_current_time() - source_p->localClient->last_leave_time)) > |
212380e3 AC |
980 | JOIN_LEAVE_COUNT_EXPIRE_TIME) |
981 | { | |
982 | decrement_count = (t_delta / JOIN_LEAVE_COUNT_EXPIRE_TIME); | |
981586df JT |
983 | if(name != NULL) |
984 | ; | |
985 | else if(decrement_count > source_p->localClient->join_leave_count) | |
212380e3 AC |
986 | source_p->localClient->join_leave_count = 0; |
987 | else | |
988 | source_p->localClient->join_leave_count -= decrement_count; | |
989 | } | |
990 | else | |
991 | { | |
e3354945 | 992 | if((rb_current_time() - |
212380e3 AC |
993 | (source_p->localClient->last_join_time)) < GlobalSetOptions.spam_time) |
994 | { | |
995 | /* oh, its a possible spambot */ | |
996 | source_p->localClient->join_leave_count++; | |
997 | } | |
998 | } | |
999 | if(name != NULL) | |
e3354945 | 1000 | source_p->localClient->last_join_time = rb_current_time(); |
212380e3 | 1001 | else |
e3354945 | 1002 | source_p->localClient->last_leave_time = rb_current_time(); |
212380e3 AC |
1003 | } |
1004 | } | |
1005 | ||
1006 | /* check_splitmode() | |
1007 | * | |
1008 | * input - | |
1009 | * output - | |
1010 | * side effects - compares usercount and servercount against their split | |
1011 | * values and adjusts splitmode accordingly | |
1012 | */ | |
1013 | void | |
1014 | check_splitmode(void *unused) | |
1015 | { | |
1016 | if(splitchecking && (ConfigChannel.no_join_on_split || ConfigChannel.no_create_on_split)) | |
1017 | { | |
1018 | /* not split, we're being asked to check now because someone | |
1019 | * has left | |
1020 | */ | |
1021 | if(!splitmode) | |
1022 | { | |
1023 | if(eob_count < split_servers || Count.total < split_users) | |
1024 | { | |
1025 | splitmode = 1; | |
1026 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1027 | "Network split, activating splitmode"); | |
c608a061 | 1028 | check_splitmode_ev = rb_event_addish("check_splitmode", check_splitmode, NULL, 2); |
212380e3 AC |
1029 | } |
1030 | } | |
1031 | /* in splitmode, check whether its finished */ | |
1032 | else if(eob_count >= split_servers && Count.total >= split_users) | |
1033 | { | |
1034 | splitmode = 0; | |
1035 | ||
1036 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1037 | "Network rejoined, deactivating splitmode"); | |
1038 | ||
c608a061 | 1039 | rb_event_delete(check_splitmode_ev); |
6a309903 | 1040 | check_splitmode_ev = NULL; |
212380e3 AC |
1041 | } |
1042 | } | |
1043 | } | |
1044 | ||
1045 | ||
1046 | /* allocate_topic() | |
1047 | * | |
1048 | * input - channel to allocate topic for | |
1049 | * output - 1 on success, else 0 | |
1050 | * side effects - channel gets a topic allocated | |
1051 | */ | |
1052 | static void | |
1053 | allocate_topic(struct Channel *chptr) | |
1054 | { | |
1055 | void *ptr; | |
1056 | ||
1057 | if(chptr == NULL) | |
1058 | return; | |
1059 | ||
398b6a73 | 1060 | ptr = rb_bh_alloc(topic_heap); |
212380e3 AC |
1061 | |
1062 | /* Basically we allocate one large block for the topic and | |
1063 | * the topic info. We then split it up into two and shove it | |
55abcbb2 | 1064 | * in the chptr |
212380e3 AC |
1065 | */ |
1066 | chptr->topic = ptr; | |
1067 | chptr->topic_info = (char *) ptr + TOPICLEN + 1; | |
1068 | *chptr->topic = '\0'; | |
1069 | *chptr->topic_info = '\0'; | |
1070 | } | |
1071 | ||
1072 | /* free_topic() | |
1073 | * | |
1074 | * input - channel which has topic to free | |
1075 | * output - | |
1076 | * side effects - channels topic is free'd | |
1077 | */ | |
1078 | static void | |
1079 | free_topic(struct Channel *chptr) | |
1080 | { | |
1081 | void *ptr; | |
1082 | ||
1083 | if(chptr == NULL || chptr->topic == NULL) | |
1084 | return; | |
1085 | ||
1086 | /* This is safe for now - If you change allocate_topic you | |
1087 | * MUST change this as well | |
1088 | */ | |
1089 | ptr = chptr->topic; | |
398b6a73 | 1090 | rb_bh_free(topic_heap, ptr); |
212380e3 AC |
1091 | chptr->topic = NULL; |
1092 | chptr->topic_info = NULL; | |
1093 | } | |
1094 | ||
1095 | /* set_channel_topic() | |
1096 | * | |
1097 | * input - channel, topic to set, topic info and topic ts | |
1098 | * output - | |
1099 | * side effects - channels topic, topic info and TS are set. | |
1100 | */ | |
1101 | void | |
1102 | set_channel_topic(struct Channel *chptr, const char *topic, const char *topic_info, time_t topicts) | |
1103 | { | |
1104 | if(strlen(topic) > 0) | |
1105 | { | |
1106 | if(chptr->topic == NULL) | |
1107 | allocate_topic(chptr); | |
f427c8b0 VY |
1108 | rb_strlcpy(chptr->topic, topic, TOPICLEN + 1); |
1109 | rb_strlcpy(chptr->topic_info, topic_info, USERHOST_REPLYLEN); | |
212380e3 AC |
1110 | chptr->topic_time = topicts; |
1111 | } | |
1112 | else | |
1113 | { | |
1114 | if(chptr->topic != NULL) | |
1115 | free_topic(chptr); | |
1116 | chptr->topic_time = 0; | |
1117 | } | |
1118 | } | |
1119 | ||
3b8a6350 | 1120 | /* channel_modes() |
212380e3 AC |
1121 | * |
1122 | * inputs - pointer to channel | |
1123 | * - pointer to client | |
f1e35c19 JT |
1124 | * output - string with simple modes |
1125 | * side effects - result from previous calls overwritten | |
212380e3 AC |
1126 | * |
1127 | * Stolen from ShadowIRCd 4 --nenolod | |
1128 | */ | |
1129 | const char * | |
3b8a6350 | 1130 | channel_modes(struct Channel *chptr, struct Client *client_p) |
212380e3 AC |
1131 | { |
1132 | int i; | |
1133 | char buf1[BUFSIZE]; | |
1134 | char buf2[BUFSIZE]; | |
1135 | static char final[BUFSIZE]; | |
1136 | char *mbuf = buf1; | |
1137 | char *pbuf = buf2; | |
1138 | ||
1139 | *mbuf++ = '+'; | |
1140 | *pbuf = '\0'; | |
1141 | ||
efccc22c | 1142 | for (i = 0; i < 256; i++) |
be29ec79 | 1143 | { |
5a1b54fd | 1144 | if(chmode_table[i].set_func == chm_hidden && !HasPrivilege(client_p, "auspex:cmodes") && IsClient(client_p)) |
be29ec79 | 1145 | continue; |
3b8a6350 | 1146 | if(chptr->mode.mode & chmode_flags[i]) |
efccc22c | 1147 | *mbuf++ = i; |
be29ec79 | 1148 | } |
212380e3 | 1149 | |
3b8a6350 | 1150 | if(chptr->mode.limit) |
212380e3 AC |
1151 | { |
1152 | *mbuf++ = 'l'; | |
1153 | ||
f1e35c19 | 1154 | if(!IsClient(client_p) || IsMember(client_p, chptr)) |
5203cba5 | 1155 | pbuf += sprintf(pbuf, " %d", chptr->mode.limit); |
212380e3 AC |
1156 | } |
1157 | ||
3b8a6350 | 1158 | if(*chptr->mode.key) |
212380e3 AC |
1159 | { |
1160 | *mbuf++ = 'k'; | |
1161 | ||
f1e35c19 | 1162 | if(pbuf > buf2 || !IsClient(client_p) || IsMember(client_p, chptr)) |
5203cba5 | 1163 | pbuf += sprintf(pbuf, " %s", chptr->mode.key); |
212380e3 AC |
1164 | } |
1165 | ||
3b8a6350 | 1166 | if(chptr->mode.join_num) |
212380e3 AC |
1167 | { |
1168 | *mbuf++ = 'j'; | |
1169 | ||
f1e35c19 | 1170 | if(pbuf > buf2 || !IsClient(client_p) || IsMember(client_p, chptr)) |
5203cba5 | 1171 | pbuf += sprintf(pbuf, " %d:%d", chptr->mode.join_num, |
3b8a6350 | 1172 | chptr->mode.join_time); |
212380e3 AC |
1173 | } |
1174 | ||
2da6f6eb JT |
1175 | if(*chptr->mode.forward && |
1176 | (ConfigChannel.use_forward || !IsClient(client_p))) | |
212380e3 AC |
1177 | { |
1178 | *mbuf++ = 'f'; | |
1179 | ||
f1e35c19 | 1180 | if(pbuf > buf2 || !IsClient(client_p) || IsMember(client_p, chptr)) |
5203cba5 | 1181 | pbuf += sprintf(pbuf, " %s", chptr->mode.forward); |
212380e3 AC |
1182 | } |
1183 | ||
1184 | *mbuf = '\0'; | |
1185 | ||
f427c8b0 | 1186 | rb_strlcpy(final, buf1, sizeof final); |
1f9de103 | 1187 | rb_strlcat(final, buf2, sizeof final); |
212380e3 AC |
1188 | return final; |
1189 | } | |
1190 | ||
212380e3 AC |
1191 | /* void send_cap_mode_changes(struct Client *client_p, |
1192 | * struct Client *source_p, | |
1193 | * struct Channel *chptr, int cap, int nocap) | |
1194 | * Input: The client sending(client_p), the source client(source_p), | |
1195 | * the channel to send mode changes for(chptr) | |
1196 | * Output: None. | |
1197 | * Side-effects: Sends the appropriate mode changes to capable servers. | |
1198 | * | |
1199 | * Reverted back to my original design, except that we now keep a count | |
1200 | * of the number of servers which each combination as an optimisation, so | |
1201 | * the capabs combinations which are not needed are not worked out. -A1kmm | |
346fba92 AC |
1202 | * |
1203 | * Removed most code here because we don't need to be compatible with ircd | |
1204 | * 2.8.21+CSr and stuff. --nenolod | |
212380e3 AC |
1205 | */ |
1206 | void | |
1207 | send_cap_mode_changes(struct Client *client_p, struct Client *source_p, | |
1208 | struct Channel *chptr, struct ChModeChange mode_changes[], int mode_count) | |
1209 | { | |
1210 | static char modebuf[BUFSIZE]; | |
1211 | static char parabuf[BUFSIZE]; | |
1212 | int i, mbl, pbl, nc, mc, preflen, len; | |
1213 | char *pbuf; | |
1214 | const char *arg; | |
346fba92 | 1215 | int dir; |
d352ca15 | 1216 | int arglen = 0; |
212380e3 AC |
1217 | |
1218 | /* Now send to servers... */ | |
346fba92 AC |
1219 | mc = 0; |
1220 | nc = 0; | |
1221 | pbl = 0; | |
1222 | parabuf[0] = 0; | |
1223 | pbuf = parabuf; | |
1224 | dir = MODE_QUERY; | |
1225 | ||
5203cba5 | 1226 | mbl = preflen = sprintf(modebuf, ":%s TMODE %ld %s ", |
346fba92 AC |
1227 | use_id(source_p), (long) chptr->channelts, |
1228 | chptr->chname); | |
1229 | ||
1230 | /* loop the list of - modes we have */ | |
1231 | for (i = 0; i < mode_count; i++) | |
212380e3 | 1232 | { |
346fba92 AC |
1233 | /* if they dont support the cap we need, or they do support a cap they |
1234 | * cant have, then dont add it to the modebuf.. that way they wont see | |
1235 | * the mode | |
1236 | */ | |
1237 | if (mode_changes[i].letter == 0) | |
212380e3 AC |
1238 | continue; |
1239 | ||
346fba92 AC |
1240 | if (!EmptyString(mode_changes[i].id)) |
1241 | arg = mode_changes[i].id; | |
1242 | else | |
1243 | arg = mode_changes[i].arg; | |
212380e3 | 1244 | |
346fba92 | 1245 | if(arg) |
212380e3 | 1246 | { |
346fba92 | 1247 | arglen = strlen(arg); |
212380e3 | 1248 | |
346fba92 AC |
1249 | /* dont even think about it! --fl */ |
1250 | if(arglen > MODEBUFLEN - 5) | |
1251 | continue; | |
1252 | } | |
212380e3 | 1253 | |
346fba92 AC |
1254 | /* if we're creeping past the buf size, we need to send it and make |
1255 | * another line for the other modes | |
1256 | * XXX - this could give away server topology with uids being | |
1257 | * different lengths, but not much we can do, except possibly break | |
1258 | * them as if they were the longest of the nick or uid at all times, | |
1259 | * which even then won't work as we don't always know the uid -A1kmm. | |
1260 | */ | |
1261 | if(arg && ((mc == MAXMODEPARAMSSERV) || | |
1262 | ((mbl + pbl + arglen + 4) > (BUFSIZE - 3)))) | |
1263 | { | |
1264 | if(nc != 0) | |
51452a37 | 1265 | sendto_server(client_p, chptr, NOCAPS, NOCAPS, |
346fba92 AC |
1266 | "%s %s", modebuf, parabuf); |
1267 | nc = 0; | |
1268 | mc = 0; | |
1269 | ||
1270 | mbl = preflen; | |
1271 | pbl = 0; | |
1272 | pbuf = parabuf; | |
1273 | parabuf[0] = 0; | |
1274 | dir = MODE_QUERY; | |
1275 | } | |
212380e3 | 1276 | |
346fba92 AC |
1277 | if(dir != mode_changes[i].dir) |
1278 | { | |
1279 | modebuf[mbl++] = (mode_changes[i].dir == MODE_ADD) ? '+' : '-'; | |
1280 | dir = mode_changes[i].dir; | |
1281 | } | |
212380e3 | 1282 | |
346fba92 AC |
1283 | modebuf[mbl++] = mode_changes[i].letter; |
1284 | modebuf[mbl] = 0; | |
1285 | nc++; | |
212380e3 | 1286 | |
346fba92 AC |
1287 | if(arg != NULL) |
1288 | { | |
5203cba5 | 1289 | len = sprintf(pbuf, "%s ", arg); |
346fba92 AC |
1290 | pbuf += len; |
1291 | pbl += len; | |
1292 | mc++; | |
212380e3 | 1293 | } |
346fba92 | 1294 | } |
212380e3 | 1295 | |
346fba92 AC |
1296 | if(pbl && parabuf[pbl - 1] == ' ') |
1297 | parabuf[pbl - 1] = 0; | |
212380e3 | 1298 | |
346fba92 | 1299 | if(nc != 0) |
51452a37 | 1300 | sendto_server(client_p, chptr, NOCAPS, NOCAPS, "%s %s", modebuf, parabuf); |
212380e3 | 1301 | } |
dca9e552 | 1302 | |
346fba92 | 1303 | void |
dca9e552 JT |
1304 | resv_chan_forcepart(const char *name, const char *reason, int temp_time) |
1305 | { | |
1306 | rb_dlink_node *ptr; | |
1307 | rb_dlink_node *next_ptr; | |
1308 | struct Channel *chptr; | |
1309 | struct membership *msptr; | |
1310 | struct Client *target_p; | |
1311 | ||
1312 | if(!ConfigChannel.resv_forcepart) | |
1313 | return; | |
1314 | ||
1315 | /* for each user on our server in the channel list | |
1316 | * send them a PART, and notify opers. | |
1317 | */ | |
1318 | chptr = find_channel(name); | |
1319 | if(chptr != NULL) | |
1320 | { | |
1321 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->locmembers.head) | |
1322 | { | |
1323 | msptr = ptr->data; | |
1324 | target_p = msptr->client_p; | |
1325 | ||
1326 | if(IsExemptResv(target_p)) | |
1327 | continue; | |
1328 | ||
1329 | sendto_server(target_p, chptr, CAP_TS6, NOCAPS, | |
1330 | ":%s PART %s", target_p->id, chptr->chname); | |
1331 | ||
4b1cce65 | 1332 | sendto_channel_local(target_p, ALL_MEMBERS, chptr, ":%s!%s@%s PART %s :%s", |
dca9e552 JT |
1333 | target_p->name, target_p->username, |
1334 | target_p->host, chptr->chname, target_p->name); | |
1335 | ||
1336 | remove_user_from_channel(msptr); | |
1337 | ||
1338 | /* notify opers & user they were removed from the channel */ | |
1339 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1340 | "Forced PART for %s!%s@%s from %s (%s)", | |
55abcbb2 | 1341 | target_p->name, target_p->username, |
dca9e552 JT |
1342 | target_p->host, name, reason); |
1343 | ||
1344 | if(temp_time > 0) | |
1345 | sendto_one_notice(target_p, ":*** Channel %s is temporarily unavailable on this server.", | |
1346 | name); | |
1347 | else | |
1348 | sendto_one_notice(target_p, ":*** Channel %s is no longer available on this server.", | |
1349 | name); | |
1350 | } | |
1351 | } | |
1352 | } |