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1 | /* | |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * m_sjoin.c: Joins a user to a channel. | |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2002-2005 ircd-ratbox development team | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
22 | * USA | |
23 | * | |
24 | * $Id: m_sjoin.c 3434 2007-04-28 23:47:25Z jilles $ | |
25 | */ | |
26 | ||
27 | #include "stdinc.h" | |
28 | #include "channel.h" | |
29 | #include "client.h" | |
30 | #include "hash.h" | |
31 | #include "irc_string.h" | |
32 | #include "sprintf_irc.h" | |
33 | #include "ircd.h" | |
34 | #include "numeric.h" | |
35 | #include "send.h" | |
36 | #include "common.h" | |
37 | #include "msg.h" | |
38 | #include "parse.h" | |
39 | #include "modules.h" | |
40 | #include "s_serv.h" | |
41 | #include "s_conf.h" | |
42 | ||
43 | static int ms_sjoin(struct Client *, struct Client *, int, const char **); | |
44 | ||
45 | struct Message sjoin_msgtab = { | |
46 | "SJOIN", 0, 0, 0, MFLG_SLOW, | |
47 | {mg_unreg, mg_ignore, mg_ignore, {ms_sjoin, 0}, mg_ignore, mg_ignore} | |
48 | }; | |
49 | ||
50 | mapi_clist_av1 sjoin_clist[] = { &sjoin_msgtab, NULL }; | |
51 | ||
52 | DECLARE_MODULE_AV1(sjoin, NULL, NULL, sjoin_clist, NULL, NULL, "$Revision: 3434 $"); | |
53 | ||
54 | /* | |
55 | * ms_sjoin | |
56 | * parv[0] - sender | |
57 | * parv[1] - TS | |
58 | * parv[2] - channel | |
59 | * parv[3] - modes + n arguments (key and/or limit) | |
60 | * parv[4+n] - flags+nick list (all in one parameter) | |
61 | * | |
62 | * process a SJOIN, taking the TS's into account to either ignore the | |
63 | * incoming modes or undo the existing ones or merge them, and JOIN | |
64 | * all the specified users while sending JOIN/MODEs to local clients | |
65 | */ | |
66 | ||
67 | ||
68 | static char modebuf[MODEBUFLEN]; | |
69 | static char parabuf[MODEBUFLEN]; | |
70 | static const char *para[MAXMODEPARAMS]; | |
71 | static char *mbuf; | |
72 | static int pargs; | |
73 | ||
74 | static void set_final_mode(struct Mode *mode, struct Mode *oldmode); | |
75 | static void remove_our_modes(struct Channel *chptr, struct Client *source_p); | |
76 | static void remove_ban_list(struct Channel *chptr, struct Client *source_p, | |
77 | rb_dlink_list * list, char c, int cap, int mems); | |
78 | ||
79 | static int | |
80 | ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
81 | { | |
82 | static char buf_nick[BUFSIZE]; | |
83 | static char buf_uid[BUFSIZE]; | |
84 | static const char empty_modes[] = "0"; | |
85 | struct Channel *chptr; | |
86 | struct Client *target_p, *fakesource_p; | |
87 | time_t newts; | |
88 | time_t oldts; | |
89 | static struct Mode mode, *oldmode; | |
90 | const char *modes; | |
91 | int args = 0; | |
92 | int keep_our_modes = 1; | |
93 | int keep_new_modes = 1; | |
94 | int fl; | |
95 | int isnew; | |
96 | int mlen_nick, mlen_uid; | |
97 | int len_nick; | |
98 | int len_uid; | |
99 | int len; | |
100 | int joins = 0; | |
101 | const char *s; | |
102 | char *ptr_nick; | |
103 | char *ptr_uid; | |
104 | char *p; | |
105 | int i, joinc = 0, timeslice = 0; | |
106 | static char empty[] = ""; | |
107 | rb_dlink_node *ptr, *next_ptr; | |
108 | ||
109 | if(!IsChannelName(parv[2]) || !check_channel_name(parv[2])) | |
110 | return 0; | |
111 | ||
112 | /* SJOIN's for local channels can't happen. */ | |
113 | if(*parv[2] == '&') | |
114 | return 0; | |
115 | ||
116 | modebuf[0] = parabuf[0] = mode.key[0] = mode.forward[0] = '\0'; | |
117 | pargs = mode.mode = mode.limit = mode.join_num = mode.join_time = 0; | |
118 | ||
119 | /* Hide connecting server on netburst -- jilles */ | |
120 | if (ConfigServerHide.flatten_links && !HasSentEob(source_p)) | |
121 | fakesource_p = &me; | |
122 | else | |
123 | fakesource_p = source_p; | |
124 | ||
125 | mbuf = modebuf; | |
126 | newts = atol(parv[1]); | |
127 | ||
128 | s = parv[3]; | |
129 | while (*s) | |
130 | { | |
131 | switch (*(s++)) | |
132 | { | |
133 | case 'i': | |
134 | mode.mode |= MODE_INVITEONLY; | |
135 | break; | |
136 | case 'n': | |
137 | mode.mode |= MODE_NOPRIVMSGS; | |
138 | break; | |
139 | case 'p': | |
140 | mode.mode |= MODE_PRIVATE; | |
141 | break; | |
142 | case 's': | |
143 | mode.mode |= MODE_SECRET; | |
144 | break; | |
145 | case 'm': | |
146 | mode.mode |= MODE_MODERATED; | |
147 | break; | |
148 | case 't': | |
149 | mode.mode |= MODE_TOPICLIMIT; | |
150 | break; | |
151 | case 'r': | |
152 | mode.mode |= MODE_REGONLY; | |
153 | break; | |
154 | case 'L': | |
155 | mode.mode |= MODE_EXLIMIT; | |
156 | break; | |
157 | case 'P': | |
158 | mode.mode |= MODE_PERMANENT; | |
159 | break; | |
160 | case 'c': | |
161 | mode.mode |= MODE_NOCOLOR; | |
162 | break; | |
163 | case 'g': | |
164 | mode.mode |= MODE_FREEINVITE; | |
165 | break; | |
166 | case 'z': | |
167 | mode.mode |= MODE_OPMODERATE; | |
168 | break; | |
169 | case 'F': | |
170 | mode.mode |= MODE_FREETARGET; | |
171 | break; | |
172 | case 'Q': | |
173 | mode.mode |= MODE_DISFORWARD; | |
174 | break; | |
175 | case 'f': | |
176 | strlcpy(mode.forward, parv[4 + args], sizeof(mode.forward)); | |
177 | args++; | |
178 | if(parc < 5 + args) | |
179 | return 0; | |
180 | break; | |
181 | case 'j': | |
182 | sscanf(parv[4 + args], "%d:%d", &joinc, ×lice); | |
183 | args++; | |
184 | mode.join_num = joinc; | |
185 | mode.join_time = timeslice; | |
186 | if(parc < 5 + args) | |
187 | return 0; | |
188 | break; | |
189 | case 'k': | |
190 | strlcpy(mode.key, parv[4 + args], sizeof(mode.key)); | |
191 | args++; | |
192 | if(parc < 5 + args) | |
193 | return 0; | |
194 | break; | |
195 | case 'l': | |
196 | mode.limit = atoi(parv[4 + args]); | |
197 | args++; | |
198 | if(parc < 5 + args) | |
199 | return 0; | |
200 | break; | |
201 | } | |
202 | } | |
203 | ||
204 | if(parv[args + 4]) | |
205 | { | |
206 | s = parv[args + 4]; | |
207 | ||
208 | /* remove any leading spaces */ | |
209 | while (*s == ' ') | |
210 | s++; | |
211 | } | |
212 | else | |
213 | s = ""; | |
214 | ||
215 | if((chptr = get_or_create_channel(source_p, parv[2], &isnew)) == NULL) | |
216 | return 0; /* channel name too long? */ | |
217 | ||
218 | ||
219 | oldts = chptr->channelts; | |
220 | oldmode = &chptr->mode; | |
221 | ||
222 | #ifdef IGNORE_BOGUS_TS | |
223 | if(newts < 800000000) | |
224 | { | |
225 | sendto_realops_snomask(SNO_DEBUG, L_ALL, | |
226 | "*** Bogus TS %ld on %s ignored from %s", | |
227 | (long) newts, chptr->chname, client_p->name); | |
228 | ||
229 | newts = (oldts == 0) ? oldts : 800000000; | |
230 | } | |
231 | #else | |
232 | if(!isnew && !newts && oldts) | |
233 | { | |
234 | sendto_channel_local(ALL_MEMBERS, chptr, | |
235 | ":%s NOTICE %s :*** Notice -- TS for %s " | |
236 | "changed from %ld to 0", | |
237 | me.name, chptr->chname, chptr->chname, (long) oldts); | |
238 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
239 | "Server %s changing TS on %s from %ld to 0", | |
240 | source_p->name, chptr->chname, (long) oldts); | |
241 | } | |
242 | #endif | |
243 | ||
244 | if(isnew) | |
245 | chptr->channelts = newts; | |
246 | ||
247 | else if(newts == 0 || oldts == 0) | |
248 | chptr->channelts = 0; | |
249 | else if(newts == oldts) | |
250 | ; | |
251 | else if(newts < oldts) | |
252 | { | |
253 | /* If configured, kick people trying to join +i/+k | |
254 | * channels by recreating them on split servers. | |
255 | * Don't kick if the source has sent EOB (services | |
256 | * deopping everyone by TS-1 SJOIN). | |
257 | * -- jilles */ | |
258 | if (ConfigChannel.kick_on_split_riding && | |
259 | !HasSentEob(source_p) && | |
260 | ((mode.mode & MODE_INVITEONLY) || | |
261 | (mode.key[0] != 0 && irccmp(mode.key, oldmode->key) != 0))) | |
262 | { | |
263 | struct membership *msptr; | |
264 | struct Client *who; | |
265 | int l = rb_dlink_list_length(&chptr->members); | |
266 | int b = rb_dlink_list_length(&chptr->banlist) + | |
267 | rb_dlink_list_length(&chptr->exceptlist) + | |
268 | rb_dlink_list_length(&chptr->invexlist) + | |
269 | rb_dlink_list_length(&chptr->quietlist); | |
270 | ||
271 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->locmembers.head) | |
272 | { | |
273 | msptr = ptr->data; | |
274 | who = msptr->client_p; | |
275 | sendto_one(who, ":%s KICK %s %s :Net Rider", | |
276 | me.name, chptr->chname, who->name); | |
277 | ||
278 | sendto_server(NULL, chptr, CAP_TS6, NOCAPS, | |
279 | ":%s KICK %s %s :Net Rider", | |
280 | me.id, chptr->chname, | |
281 | who->id); | |
282 | sendto_server(NULL, chptr, NOCAPS, CAP_TS6, | |
283 | ":%s KICK %s %s :Net Rider", | |
284 | me.name, chptr->chname, who->name); | |
285 | remove_user_from_channel(msptr); | |
286 | if (--l == 0) | |
287 | break; | |
288 | } | |
289 | if (l == 0) | |
290 | { | |
291 | /* Channel was emptied, create a new one */ | |
292 | if((chptr = get_or_create_channel(source_p, parv[2], &isnew)) == NULL) | |
293 | return 0; /* oops! */ | |
294 | ||
295 | /* If the source does not do TS6, | |
296 | * nontimestamped bans have been sent to it, | |
297 | * but we have just lost those here. Let's | |
298 | * warn the channel about this. Because | |
299 | * of the kicks, any users on the channel | |
300 | * will be at client_p. -- jilles */ | |
301 | if (!has_id(source_p) && b > 0) | |
302 | sendto_one(client_p, ":%s NOTICE %s :*** Notice -- possible ban desync on %s, please remove any bans just added by servers", get_id(&me, client_p), parv[2], parv[2]); | |
303 | oldmode = &chptr->mode; | |
304 | } | |
305 | } | |
306 | keep_our_modes = NO; | |
307 | chptr->channelts = newts; | |
308 | } | |
309 | else | |
310 | keep_new_modes = NO; | |
311 | ||
312 | if(!keep_new_modes) | |
313 | mode = *oldmode; | |
314 | else if(keep_our_modes) | |
315 | { | |
316 | mode.mode |= oldmode->mode; | |
317 | if(oldmode->limit > mode.limit) | |
318 | mode.limit = oldmode->limit; | |
319 | if(strcmp(mode.key, oldmode->key) < 0) | |
320 | strcpy(mode.key, oldmode->key); | |
321 | if(oldmode->join_num > mode.join_num || | |
322 | (oldmode->join_num == mode.join_num && | |
323 | oldmode->join_time > mode.join_time)) | |
324 | { | |
325 | mode.join_num = oldmode->join_num; | |
326 | mode.join_time = oldmode->join_time; | |
327 | } | |
328 | if(irccmp(mode.forward, oldmode->forward) < 0) | |
329 | strcpy(mode.forward, oldmode->forward); | |
330 | } | |
331 | else | |
332 | { | |
333 | /* If setting -j, clear join throttle state -- jilles */ | |
334 | if (!mode.join_num) | |
335 | chptr->join_count = chptr->join_delta = 0; | |
336 | } | |
337 | ||
338 | set_final_mode(&mode, oldmode); | |
339 | chptr->mode = mode; | |
340 | ||
341 | /* Lost the TS, other side wins, so remove modes on this side */ | |
342 | if(!keep_our_modes) | |
343 | { | |
344 | remove_our_modes(chptr, fakesource_p); | |
345 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->invites.head) | |
346 | { | |
347 | del_invite(chptr, ptr->data); | |
348 | } | |
349 | sendto_channel_local(ALL_MEMBERS, chptr, | |
350 | ":%s NOTICE %s :*** Notice -- TS for %s changed from %ld to %ld", | |
351 | me.name, chptr->chname, chptr->chname, | |
352 | (long) oldts, (long) newts); | |
353 | /* Update capitalization in channel name, this makes the | |
354 | * capitalization timestamped like modes are -- jilles */ | |
355 | strcpy(chptr->chname, parv[2]); | |
356 | } | |
357 | ||
358 | if(*modebuf != '\0') | |
359 | sendto_channel_local(ALL_MEMBERS, chptr, ":%s MODE %s %s %s", | |
360 | fakesource_p->name, chptr->chname, modebuf, parabuf); | |
361 | ||
362 | *modebuf = *parabuf = '\0'; | |
363 | ||
364 | if(parv[3][0] != '0' && keep_new_modes) | |
365 | modes = channel_modes(chptr, source_p); | |
366 | else | |
367 | modes = empty_modes; | |
368 | ||
369 | mlen_nick = rb_sprintf(buf_nick, ":%s SJOIN %ld %s %s :", | |
370 | source_p->name, (long) chptr->channelts, parv[2], modes); | |
371 | ptr_nick = buf_nick + mlen_nick; | |
372 | ||
373 | /* working on the presumption eventually itll be more efficient to | |
374 | * build a TS6 buffer without checking its needed.. | |
375 | */ | |
376 | mlen_uid = rb_sprintf(buf_uid, ":%s SJOIN %ld %s %s :", | |
377 | use_id(source_p), (long) chptr->channelts, parv[2], modes); | |
378 | ptr_uid = buf_uid + mlen_uid; | |
379 | ||
380 | mbuf = modebuf; | |
381 | para[0] = para[1] = para[2] = para[3] = empty; | |
382 | pargs = 0; | |
383 | len_nick = len_uid = 0; | |
384 | ||
385 | /* if theres a space, theres going to be more than one nick, change the | |
386 | * first space to \0, so s is just the first nick, and point p to the | |
387 | * second nick | |
388 | */ | |
389 | if((p = strchr(s, ' ')) != NULL) | |
390 | { | |
391 | *p++ = '\0'; | |
392 | } | |
393 | ||
394 | *mbuf++ = '+'; | |
395 | ||
396 | while (s) | |
397 | { | |
398 | fl = 0; | |
399 | ||
400 | for (i = 0; i < 2; i++) | |
401 | { | |
402 | if(*s == '@') | |
403 | { | |
404 | fl |= CHFL_CHANOP; | |
405 | s++; | |
406 | } | |
407 | else if(*s == '+') | |
408 | { | |
409 | fl |= CHFL_VOICE; | |
410 | s++; | |
411 | } | |
412 | } | |
413 | ||
414 | /* if the client doesnt exist or is fake direction, skip. */ | |
415 | if(!(target_p = find_client(s)) || | |
416 | (target_p->from != client_p) || !IsPerson(target_p)) | |
417 | goto nextnick; | |
418 | ||
419 | /* we assume for these we can fit at least one nick/uid in.. */ | |
420 | ||
421 | /* check we can fit another status+nick+space into a buffer */ | |
422 | if((mlen_nick + len_nick + NICKLEN + 3) > (BUFSIZE - 3)) | |
423 | { | |
424 | *(ptr_nick - 1) = '\0'; | |
425 | sendto_server(client_p->from, NULL, NOCAPS, CAP_TS6, "%s", buf_nick); | |
426 | ptr_nick = buf_nick + mlen_nick; | |
427 | len_nick = 0; | |
428 | } | |
429 | ||
430 | if((mlen_uid + len_uid + IDLEN + 3) > (BUFSIZE - 3)) | |
431 | { | |
432 | *(ptr_uid - 1) = '\0'; | |
433 | sendto_server(client_p->from, NULL, CAP_TS6, NOCAPS, "%s", buf_uid); | |
434 | ptr_uid = buf_uid + mlen_uid; | |
435 | len_uid = 0; | |
436 | } | |
437 | ||
438 | if(keep_new_modes) | |
439 | { | |
440 | if(fl & CHFL_CHANOP) | |
441 | { | |
442 | *ptr_nick++ = '@'; | |
443 | *ptr_uid++ = '@'; | |
444 | len_nick++; | |
445 | len_uid++; | |
446 | } | |
447 | if(fl & CHFL_VOICE) | |
448 | { | |
449 | *ptr_nick++ = '+'; | |
450 | *ptr_uid++ = '+'; | |
451 | len_nick++; | |
452 | len_uid++; | |
453 | } | |
454 | } | |
455 | ||
456 | /* copy the nick to the two buffers */ | |
457 | len = rb_sprintf(ptr_nick, "%s ", target_p->name); | |
458 | ptr_nick += len; | |
459 | len_nick += len; | |
460 | len = rb_sprintf(ptr_uid, "%s ", use_id(target_p)); | |
461 | ptr_uid += len; | |
462 | len_uid += len; | |
463 | ||
464 | if(!keep_new_modes) | |
465 | fl = 0; | |
466 | ||
467 | if(!IsMember(target_p, chptr)) | |
468 | { | |
469 | add_user_to_channel(chptr, target_p, fl); | |
470 | sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s JOIN :%s", | |
471 | target_p->name, | |
472 | target_p->username, target_p->host, parv[2]); | |
473 | joins++; | |
474 | } | |
475 | ||
476 | if(fl & CHFL_CHANOP) | |
477 | { | |
478 | *mbuf++ = 'o'; | |
479 | para[pargs++] = target_p->name; | |
480 | ||
481 | /* a +ov user.. bleh */ | |
482 | if(fl & CHFL_VOICE) | |
483 | { | |
484 | /* its possible the +o has filled up MAXMODEPARAMS, if so, start | |
485 | * a new buffer | |
486 | */ | |
487 | if(pargs >= MAXMODEPARAMS) | |
488 | { | |
489 | *mbuf = '\0'; | |
490 | sendto_channel_local(ALL_MEMBERS, chptr, | |
491 | ":%s MODE %s %s %s %s %s %s", | |
492 | fakesource_p->name, chptr->chname, | |
493 | modebuf, | |
494 | para[0], para[1], para[2], para[3]); | |
495 | mbuf = modebuf; | |
496 | *mbuf++ = '+'; | |
497 | para[0] = para[1] = para[2] = para[3] = NULL; | |
498 | pargs = 0; | |
499 | } | |
500 | ||
501 | *mbuf++ = 'v'; | |
502 | para[pargs++] = target_p->name; | |
503 | } | |
504 | } | |
505 | else if(fl & CHFL_VOICE) | |
506 | { | |
507 | *mbuf++ = 'v'; | |
508 | para[pargs++] = target_p->name; | |
509 | } | |
510 | ||
511 | if(pargs >= MAXMODEPARAMS) | |
512 | { | |
513 | *mbuf = '\0'; | |
514 | sendto_channel_local(ALL_MEMBERS, chptr, | |
515 | ":%s MODE %s %s %s %s %s %s", | |
516 | fakesource_p->name, | |
517 | chptr->chname, | |
518 | modebuf, para[0], para[1], para[2], para[3]); | |
519 | mbuf = modebuf; | |
520 | *mbuf++ = '+'; | |
521 | para[0] = para[1] = para[2] = para[3] = NULL; | |
522 | pargs = 0; | |
523 | } | |
524 | ||
525 | nextnick: | |
526 | /* p points to the next nick */ | |
527 | s = p; | |
528 | ||
529 | /* if there was a trailing space and p was pointing to it, then we | |
530 | * need to exit.. this has the side effect of breaking double spaces | |
531 | * in an sjoin.. but that shouldnt happen anyway | |
532 | */ | |
533 | if(s && (*s == '\0')) | |
534 | s = p = NULL; | |
535 | ||
536 | /* if p was NULL due to no spaces, s wont exist due to the above, so | |
537 | * we cant check it for spaces.. if there are no spaces, then when | |
538 | * we next get here, s will be NULL | |
539 | */ | |
540 | if(s && ((p = strchr(s, ' ')) != NULL)) | |
541 | { | |
542 | *p++ = '\0'; | |
543 | } | |
544 | } | |
545 | ||
546 | *mbuf = '\0'; | |
547 | if(pargs) | |
548 | { | |
549 | sendto_channel_local(ALL_MEMBERS, chptr, | |
550 | ":%s MODE %s %s %s %s %s %s", | |
551 | fakesource_p->name, chptr->chname, modebuf, | |
552 | para[0], CheckEmpty(para[1]), | |
553 | CheckEmpty(para[2]), CheckEmpty(para[3])); | |
554 | } | |
555 | ||
556 | if(!joins && !(chptr->mode.mode & MODE_PERMANENT) && isnew) | |
557 | { | |
558 | destroy_channel(chptr); | |
559 | ||
560 | return 0; | |
561 | } | |
562 | ||
563 | /* Keep the colon if we're sending an SJOIN without nicks -- jilles */ | |
564 | if (joins) | |
565 | { | |
566 | *(ptr_nick - 1) = '\0'; | |
567 | *(ptr_uid - 1) = '\0'; | |
568 | } | |
569 | ||
570 | sendto_server(client_p->from, NULL, CAP_TS6, NOCAPS, "%s", buf_uid); | |
571 | sendto_server(client_p->from, NULL, NOCAPS, CAP_TS6, "%s", buf_nick); | |
572 | ||
573 | /* if the source does TS6 we have to remove our bans. Its now safe | |
574 | * to issue -b's to the non-ts6 servers, as the sjoin we've just | |
575 | * sent will kill any ops they have. | |
576 | */ | |
577 | if(!keep_our_modes && source_p->id[0] != '\0') | |
578 | { | |
579 | if(rb_dlink_list_length(&chptr->banlist) > 0) | |
580 | remove_ban_list(chptr, fakesource_p, &chptr->banlist, 'b', NOCAPS, ALL_MEMBERS); | |
581 | ||
582 | if(rb_dlink_list_length(&chptr->exceptlist) > 0) | |
583 | remove_ban_list(chptr, fakesource_p, &chptr->exceptlist, | |
584 | 'e', CAP_EX, ONLY_CHANOPS); | |
585 | ||
586 | if(rb_dlink_list_length(&chptr->invexlist) > 0) | |
587 | remove_ban_list(chptr, fakesource_p, &chptr->invexlist, | |
588 | 'I', CAP_IE, ONLY_CHANOPS); | |
589 | ||
590 | if(rb_dlink_list_length(&chptr->quietlist) > 0) | |
591 | remove_ban_list(chptr, fakesource_p, &chptr->quietlist, | |
592 | 'q', NOCAPS, ALL_MEMBERS); | |
593 | ||
594 | chptr->bants++; | |
595 | } | |
596 | ||
597 | return 0; | |
598 | } | |
599 | ||
600 | static void | |
601 | set_final_mode(struct Mode *mode, struct Mode *oldmode) | |
602 | { | |
603 | int dir = MODE_QUERY; | |
604 | char *pbuf = parabuf; | |
605 | int len; | |
606 | int i; | |
607 | ||
608 | /* ok, first get a list of modes we need to add */ | |
609 | for (i = 0; chmode_flags[i].letter; i++) | |
610 | { | |
611 | if((mode->mode & chmode_flags[i].mode) && !(oldmode->mode & chmode_flags[i].mode)) | |
612 | { | |
613 | if(dir != MODE_ADD) | |
614 | { | |
615 | *mbuf++ = '+'; | |
616 | dir = MODE_ADD; | |
617 | } | |
618 | *mbuf++ = chmode_flags[i].letter; | |
619 | } | |
620 | } | |
621 | ||
622 | /* now the ones we need to remove. */ | |
623 | for (i = 0; chmode_flags[i].letter; i++) | |
624 | { | |
625 | if((oldmode->mode & chmode_flags[i].mode) && !(mode->mode & chmode_flags[i].mode)) | |
626 | { | |
627 | if(dir != MODE_DEL) | |
628 | { | |
629 | *mbuf++ = '-'; | |
630 | dir = MODE_DEL; | |
631 | } | |
632 | *mbuf++ = chmode_flags[i].letter; | |
633 | } | |
634 | } | |
635 | ||
636 | if(oldmode->limit && !mode->limit) | |
637 | { | |
638 | if(dir != MODE_DEL) | |
639 | { | |
640 | *mbuf++ = '-'; | |
641 | dir = MODE_DEL; | |
642 | } | |
643 | *mbuf++ = 'l'; | |
644 | } | |
645 | if(oldmode->key[0] && !mode->key[0]) | |
646 | { | |
647 | if(dir != MODE_DEL) | |
648 | { | |
649 | *mbuf++ = '-'; | |
650 | dir = MODE_DEL; | |
651 | } | |
652 | *mbuf++ = 'k'; | |
653 | len = rb_sprintf(pbuf, "%s ", oldmode->key); | |
654 | pbuf += len; | |
655 | pargs++; | |
656 | } | |
657 | if(oldmode->join_num && !mode->join_num) | |
658 | { | |
659 | if(dir != MODE_DEL) | |
660 | { | |
661 | *mbuf++ = '-'; | |
662 | dir = MODE_DEL; | |
663 | } | |
664 | *mbuf++ = 'j'; | |
665 | } | |
666 | if(oldmode->forward[0] && !mode->forward[0]) | |
667 | { | |
668 | if(dir != MODE_DEL) | |
669 | { | |
670 | *mbuf++ = '-'; | |
671 | dir = MODE_DEL; | |
672 | } | |
673 | *mbuf++ = 'f'; | |
674 | } | |
675 | if(mode->limit && oldmode->limit != mode->limit) | |
676 | { | |
677 | if(dir != MODE_ADD) | |
678 | { | |
679 | *mbuf++ = '+'; | |
680 | dir = MODE_ADD; | |
681 | } | |
682 | *mbuf++ = 'l'; | |
683 | len = rb_sprintf(pbuf, "%d ", mode->limit); | |
684 | pbuf += len; | |
685 | pargs++; | |
686 | } | |
687 | if(mode->key[0] && strcmp(oldmode->key, mode->key)) | |
688 | { | |
689 | if(dir != MODE_ADD) | |
690 | { | |
691 | *mbuf++ = '+'; | |
692 | dir = MODE_ADD; | |
693 | } | |
694 | *mbuf++ = 'k'; | |
695 | len = rb_sprintf(pbuf, "%s ", mode->key); | |
696 | pbuf += len; | |
697 | pargs++; | |
698 | } | |
699 | if(mode->join_num && (oldmode->join_num != mode->join_num || oldmode->join_time != mode->join_time)) | |
700 | { | |
701 | if(dir != MODE_ADD) | |
702 | { | |
703 | *mbuf++ = '+'; | |
704 | dir = MODE_ADD; | |
705 | } | |
706 | *mbuf++ = 'j'; | |
707 | len = rb_sprintf(pbuf, "%d:%d ", mode->join_num, mode->join_time); | |
708 | pbuf += len; | |
709 | pargs++; | |
710 | } | |
711 | if(mode->forward[0] && strcmp(oldmode->forward, mode->forward) && ConfigChannel.use_forward) | |
712 | { | |
713 | if(dir != MODE_ADD) | |
714 | { | |
715 | *mbuf++ = '+'; | |
716 | dir = MODE_ADD; | |
717 | } | |
718 | *mbuf++ = 'f'; | |
719 | len = rb_sprintf(pbuf, "%s ", mode->forward); | |
720 | pbuf += len; | |
721 | pargs++; | |
722 | } | |
723 | *mbuf = '\0'; | |
724 | } | |
725 | ||
726 | /* | |
727 | * remove_our_modes | |
728 | * | |
729 | * inputs - | |
730 | * output - | |
731 | * side effects - | |
732 | */ | |
733 | static void | |
734 | remove_our_modes(struct Channel *chptr, struct Client *source_p) | |
735 | { | |
736 | struct membership *msptr; | |
737 | rb_dlink_node *ptr; | |
738 | char lmodebuf[MODEBUFLEN]; | |
739 | char *lpara[MAXMODEPARAMS]; | |
740 | int count = 0; | |
741 | int i; | |
742 | ||
743 | mbuf = lmodebuf; | |
744 | *mbuf++ = '-'; | |
745 | ||
746 | for (i = 0; i < MAXMODEPARAMS; i++) | |
747 | lpara[i] = NULL; | |
748 | ||
749 | RB_DLINK_FOREACH(ptr, chptr->members.head) | |
750 | { | |
751 | msptr = ptr->data; | |
752 | ||
753 | if(is_chanop(msptr)) | |
754 | { | |
755 | msptr->flags &= ~CHFL_CHANOP; | |
756 | lpara[count++] = msptr->client_p->name; | |
757 | *mbuf++ = 'o'; | |
758 | ||
759 | /* +ov, might not fit so check. */ | |
760 | if(is_voiced(msptr)) | |
761 | { | |
762 | if(count >= MAXMODEPARAMS) | |
763 | { | |
764 | *mbuf = '\0'; | |
765 | sendto_channel_local(ALL_MEMBERS, chptr, | |
766 | ":%s MODE %s %s %s %s %s %s", | |
767 | me.name, chptr->chname, | |
768 | lmodebuf, lpara[0], lpara[1], | |
769 | lpara[2], lpara[3]); | |
770 | ||
771 | /* preserve the initial '-' */ | |
772 | mbuf = lmodebuf; | |
773 | *mbuf++ = '-'; | |
774 | count = 0; | |
775 | ||
776 | for (i = 0; i < MAXMODEPARAMS; i++) | |
777 | lpara[i] = NULL; | |
778 | } | |
779 | ||
780 | msptr->flags &= ~CHFL_VOICE; | |
781 | lpara[count++] = msptr->client_p->name; | |
782 | *mbuf++ = 'v'; | |
783 | } | |
784 | } | |
785 | else if(is_voiced(msptr)) | |
786 | { | |
787 | msptr->flags &= ~CHFL_VOICE; | |
788 | lpara[count++] = msptr->client_p->name; | |
789 | *mbuf++ = 'v'; | |
790 | } | |
791 | else | |
792 | continue; | |
793 | ||
794 | if(count >= MAXMODEPARAMS) | |
795 | { | |
796 | *mbuf = '\0'; | |
797 | sendto_channel_local(ALL_MEMBERS, chptr, | |
798 | ":%s MODE %s %s %s %s %s %s", | |
799 | me.name, chptr->chname, lmodebuf, | |
800 | lpara[0], lpara[1], lpara[2], lpara[3]); | |
801 | mbuf = lmodebuf; | |
802 | *mbuf++ = '-'; | |
803 | count = 0; | |
804 | ||
805 | for (i = 0; i < MAXMODEPARAMS; i++) | |
806 | lpara[i] = NULL; | |
807 | } | |
808 | } | |
809 | ||
810 | if(count != 0) | |
811 | { | |
812 | *mbuf = '\0'; | |
813 | sendto_channel_local(ALL_MEMBERS, chptr, | |
814 | ":%s MODE %s %s %s %s %s %s", | |
815 | me.name, chptr->chname, lmodebuf, | |
816 | EmptyString(lpara[0]) ? "" : lpara[0], | |
817 | EmptyString(lpara[1]) ? "" : lpara[1], | |
818 | EmptyString(lpara[2]) ? "" : lpara[2], | |
819 | EmptyString(lpara[3]) ? "" : lpara[3]); | |
820 | ||
821 | } | |
822 | } | |
823 | ||
824 | /* remove_ban_list() | |
825 | * | |
826 | * inputs - channel, source, list to remove, char of mode, caps needed | |
827 | * outputs - | |
828 | * side effects - given list is removed, with modes issued to local clients | |
829 | * and non-TS6 servers. | |
830 | */ | |
831 | static void | |
832 | remove_ban_list(struct Channel *chptr, struct Client *source_p, | |
833 | rb_dlink_list * list, char c, int cap, int mems) | |
834 | { | |
835 | static char lmodebuf[BUFSIZE]; | |
836 | static char lparabuf[BUFSIZE]; | |
837 | struct Ban *banptr; | |
838 | rb_dlink_node *ptr; | |
839 | rb_dlink_node *next_ptr; | |
840 | char *pbuf; | |
841 | int count = 0; | |
842 | int cur_len, mlen, plen; | |
843 | ||
844 | pbuf = lparabuf; | |
845 | ||
846 | cur_len = mlen = rb_sprintf(lmodebuf, ":%s MODE %s -", source_p->name, chptr->chname); | |
847 | mbuf = lmodebuf + mlen; | |
848 | ||
849 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) | |
850 | { | |
851 | banptr = ptr->data; | |
852 | ||
853 | /* trailing space, and the mode letter itself */ | |
854 | plen = strlen(banptr->banstr) + 2; | |
855 | ||
856 | if(count >= MAXMODEPARAMS || (cur_len + plen) > BUFSIZE - 4) | |
857 | { | |
858 | /* remove trailing space */ | |
859 | *mbuf = '\0'; | |
860 | *(pbuf - 1) = '\0'; | |
861 | ||
862 | sendto_channel_local(mems, chptr, "%s %s", lmodebuf, lparabuf); | |
863 | /* Tricky tricky. If we changed source_p to &me | |
864 | * in ms_sjoin(), this still won't send stuff | |
865 | * where it should not be sent, because the | |
866 | * real source_p does TS6 -- jilles */ | |
867 | sendto_server(source_p, chptr, cap, CAP_TS6, "%s %s", lmodebuf, lparabuf); | |
868 | ||
869 | cur_len = mlen; | |
870 | mbuf = lmodebuf + mlen; | |
871 | pbuf = lparabuf; | |
872 | count = 0; | |
873 | } | |
874 | ||
875 | *mbuf++ = c; | |
876 | cur_len += plen; | |
877 | pbuf += rb_sprintf(pbuf, "%s ", banptr->banstr); | |
878 | count++; | |
879 | ||
880 | free_ban(banptr); | |
881 | } | |
882 | ||
883 | *mbuf = '\0'; | |
884 | *(pbuf - 1) = '\0'; | |
885 | sendto_channel_local(mems, chptr, "%s %s", lmodebuf, lparabuf); | |
886 | sendto_server(source_p, chptr, cap, CAP_TS6, "%s %s", lmodebuf, lparabuf); | |
887 | ||
888 | list->head = list->tail = NULL; | |
889 | list->length = 0; | |
890 | } |