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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 "tools.h" | |
29 | #include "channel.h" | |
30 | #include "client.h" | |
31 | #include "hash.h" | |
32 | #include "irc_string.h" | |
33 | #include "sprintf_irc.h" | |
34 | #include "ircd.h" | |
35 | #include "numeric.h" | |
36 | #include "send.h" | |
37 | #include "common.h" | |
38 | #include "msg.h" | |
39 | #include "parse.h" | |
40 | #include "modules.h" | |
41 | #include "s_serv.h" | |
42 | #include "s_conf.h" | |
43 | ||
44 | static int ms_sjoin(struct Client *, struct Client *, int, const char **); | |
45 | ||
46 | struct Message sjoin_msgtab = { | |
47 | "SJOIN", 0, 0, 0, MFLG_SLOW, | |
48 | {mg_unreg, mg_ignore, mg_ignore, {ms_sjoin, 0}, mg_ignore, mg_ignore} | |
49 | }; | |
50 | ||
51 | mapi_clist_av1 sjoin_clist[] = { &sjoin_msgtab, NULL }; | |
52 | ||
53 | DECLARE_MODULE_AV1(sjoin, NULL, NULL, sjoin_clist, NULL, NULL, "$Revision: 3434 $"); | |
54 | ||
55 | /* | |
56 | * ms_sjoin | |
57 | * parv[0] - sender | |
58 | * parv[1] - TS | |
59 | * parv[2] - channel | |
60 | * parv[3] - modes + n arguments (key and/or limit) | |
61 | * parv[4+n] - flags+nick list (all in one parameter) | |
62 | * | |
63 | * process a SJOIN, taking the TS's into account to either ignore the | |
64 | * incoming modes or undo the existing ones or merge them, and JOIN | |
65 | * all the specified users while sending JOIN/MODEs to local clients | |
66 | */ | |
67 | ||
68 | ||
69 | static char modebuf[MODEBUFLEN]; | |
70 | static char parabuf[MODEBUFLEN]; | |
71 | static const char *para[MAXMODEPARAMS]; | |
72 | static char *mbuf; | |
73 | static int pargs; | |
74 | ||
75 | static void set_final_mode(struct Mode *mode, struct Mode *oldmode); | |
76 | static void remove_our_modes(struct Channel *chptr, struct Client *source_p); | |
77 | static void remove_ban_list(struct Channel *chptr, struct Client *source_p, | |
78 | dlink_list * list, char c, int cap, int mems); | |
79 | ||
80 | static int | |
81 | ms_sjoin(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
82 | { | |
83 | static char buf_nick[BUFSIZE]; | |
84 | static char buf_uid[BUFSIZE]; | |
85 | static const char empty_modes[] = "0"; | |
86 | struct Channel *chptr; | |
87 | struct Client *target_p, *fakesource_p; | |
88 | time_t newts; | |
89 | time_t oldts; | |
90 | static struct Mode mode, *oldmode; | |
91 | const char *modes; | |
92 | int args = 0; | |
93 | int keep_our_modes = 1; | |
94 | int keep_new_modes = 1; | |
95 | int fl; | |
96 | int isnew; | |
97 | int mlen_nick, mlen_uid; | |
98 | int len_nick; | |
99 | int len_uid; | |
100 | int len; | |
101 | int joins = 0; | |
102 | const char *s; | |
103 | char *ptr_nick; | |
104 | char *ptr_uid; | |
105 | char *p; | |
106 | int i, joinc = 0, timeslice = 0; | |
107 | static char empty[] = ""; | |
108 | dlink_node *ptr, *next_ptr; | |
109 | ||
110 | if(!IsChannelName(parv[2]) || !check_channel_name(parv[2])) | |
111 | return 0; | |
112 | ||
113 | /* SJOIN's for local channels can't happen. */ | |
114 | if(*parv[2] == '&') | |
115 | return 0; | |
116 | ||
117 | modebuf[0] = parabuf[0] = mode.key[0] = mode.forward[0] = '\0'; | |
118 | pargs = mode.mode = mode.limit = mode.join_num = mode.join_time = 0; | |
119 | ||
120 | /* Hide connecting server on netburst -- jilles */ | |
121 | if (ConfigServerHide.flatten_links && !HasSentEob(source_p)) | |
122 | fakesource_p = &me; | |
123 | else | |
124 | fakesource_p = source_p; | |
125 | ||
126 | mbuf = modebuf; | |
127 | newts = atol(parv[1]); | |
128 | ||
129 | s = parv[3]; | |
130 | while (*s) | |
131 | { | |
132 | switch (*(s++)) | |
133 | { | |
134 | case 'i': | |
135 | mode.mode |= MODE_INVITEONLY; | |
136 | break; | |
137 | case 'n': | |
138 | mode.mode |= MODE_NOPRIVMSGS; | |
139 | break; | |
140 | case 'p': | |
141 | mode.mode |= MODE_PRIVATE; | |
142 | break; | |
143 | case 's': | |
144 | mode.mode |= MODE_SECRET; | |
145 | break; | |
146 | case 'm': | |
147 | mode.mode |= MODE_MODERATED; | |
148 | break; | |
149 | case 't': | |
150 | mode.mode |= MODE_TOPICLIMIT; | |
151 | break; | |
152 | case 'r': | |
153 | mode.mode |= MODE_REGONLY; | |
154 | break; | |
155 | case 'L': | |
156 | mode.mode |= MODE_EXLIMIT; | |
157 | break; | |
158 | case 'P': | |
159 | mode.mode |= MODE_PERMANENT; | |
160 | break; | |
161 | case 'c': | |
162 | mode.mode |= MODE_NOCOLOR; | |
163 | break; | |
164 | case 'g': | |
165 | mode.mode |= MODE_FREEINVITE; | |
166 | break; | |
167 | case 'z': | |
168 | mode.mode |= MODE_OPMODERATE; | |
169 | break; | |
170 | case 'F': | |
171 | mode.mode |= MODE_FREETARGET; | |
172 | break; | |
173 | case 'Q': | |
174 | mode.mode |= MODE_DISFORWARD; | |
175 | break; | |
176 | case 'f': | |
177 | strlcpy(mode.forward, parv[4 + args], sizeof(mode.forward)); | |
178 | args++; | |
179 | if(parc < 5 + args) | |
180 | return 0; | |
181 | break; | |
182 | case 'j': | |
183 | sscanf(parv[4 + args], "%d:%d", &joinc, ×lice); | |
184 | args++; | |
185 | mode.join_num = joinc; | |
186 | mode.join_time = timeslice; | |
187 | if(parc < 5 + args) | |
188 | return 0; | |
189 | break; | |
190 | case 'k': | |
191 | strlcpy(mode.key, parv[4 + args], sizeof(mode.key)); | |
192 | args++; | |
193 | if(parc < 5 + args) | |
194 | return 0; | |
195 | break; | |
196 | case 'l': | |
197 | mode.limit = atoi(parv[4 + args]); | |
198 | args++; | |
199 | if(parc < 5 + args) | |
200 | return 0; | |
201 | break; | |
202 | } | |
203 | } | |
204 | ||
205 | if(parv[args + 4]) | |
206 | { | |
207 | s = parv[args + 4]; | |
208 | ||
209 | /* remove any leading spaces */ | |
210 | while (*s == ' ') | |
211 | s++; | |
212 | } | |
213 | else | |
214 | s = ""; | |
215 | ||
216 | if((chptr = get_or_create_channel(source_p, parv[2], &isnew)) == NULL) | |
217 | return 0; /* channel name too long? */ | |
218 | ||
219 | ||
220 | oldts = chptr->channelts; | |
221 | oldmode = &chptr->mode; | |
222 | ||
223 | #ifdef IGNORE_BOGUS_TS | |
224 | if(newts < 800000000) | |
225 | { | |
226 | sendto_realops_snomask(SNO_DEBUG, L_ALL, | |
227 | "*** Bogus TS %ld on %s ignored from %s", | |
228 | (long) newts, chptr->chname, client_p->name); | |
229 | ||
230 | newts = (oldts == 0) ? oldts : 800000000; | |
231 | } | |
232 | #else | |
233 | if(!isnew && !newts && oldts) | |
234 | { | |
235 | sendto_channel_local(ALL_MEMBERS, chptr, | |
236 | ":%s NOTICE %s :*** Notice -- TS for %s " | |
237 | "changed from %ld to 0", | |
238 | me.name, chptr->chname, chptr->chname, (long) oldts); | |
239 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
240 | "Server %s changing TS on %s from %ld to 0", | |
241 | source_p->name, chptr->chname, (long) oldts); | |
242 | } | |
243 | #endif | |
244 | ||
245 | if(isnew) | |
246 | chptr->channelts = newts; | |
247 | ||
248 | else if(newts == 0 || oldts == 0) | |
249 | chptr->channelts = 0; | |
250 | else if(newts == oldts) | |
251 | ; | |
252 | else if(newts < oldts) | |
253 | { | |
254 | /* If configured, kick people trying to join +i/+k | |
255 | * channels by recreating them on split servers. | |
256 | * Don't kick if the source has sent EOB (services | |
257 | * deopping everyone by TS-1 SJOIN). | |
258 | * -- jilles */ | |
259 | if (ConfigChannel.kick_on_split_riding && | |
260 | !HasSentEob(source_p) && | |
261 | ((mode.mode & MODE_INVITEONLY) || | |
262 | (mode.key[0] != 0 && irccmp(mode.key, oldmode->key) != 0))) | |
263 | { | |
264 | struct membership *msptr; | |
265 | struct Client *who; | |
266 | int l = dlink_list_length(&chptr->members); | |
267 | int b = dlink_list_length(&chptr->banlist) + | |
268 | dlink_list_length(&chptr->exceptlist) + | |
269 | dlink_list_length(&chptr->invexlist) + | |
270 | dlink_list_length(&chptr->quietlist); | |
271 | ||
272 | DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->locmembers.head) | |
273 | { | |
274 | msptr = ptr->data; | |
275 | who = msptr->client_p; | |
276 | sendto_one(who, ":%s KICK %s %s :Net Rider", | |
277 | me.name, chptr->chname, who->name); | |
278 | ||
279 | sendto_server(NULL, chptr, CAP_TS6, NOCAPS, | |
280 | ":%s KICK %s %s :Net Rider", | |
281 | me.id, chptr->chname, | |
282 | who->id); | |
283 | sendto_server(NULL, chptr, NOCAPS, CAP_TS6, | |
284 | ":%s KICK %s %s :Net Rider", | |
285 | me.name, chptr->chname, who->name); | |
286 | remove_user_from_channel(msptr); | |
287 | if (--l == 0) | |
288 | break; | |
289 | } | |
290 | if (l == 0) | |
291 | { | |
292 | /* Channel was emptied, create a new one */ | |
293 | if((chptr = get_or_create_channel(source_p, parv[2], &isnew)) == NULL) | |
294 | return 0; /* oops! */ | |
295 | ||
296 | /* If the source does not do TS6, | |
297 | * nontimestamped bans have been sent to it, | |
298 | * but we have just lost those here. Let's | |
299 | * warn the channel about this. Because | |
300 | * of the kicks, any users on the channel | |
301 | * will be at client_p. -- jilles */ | |
302 | if (!has_id(source_p) && b > 0) | |
303 | 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]); | |
304 | oldmode = &chptr->mode; | |
305 | } | |
306 | } | |
307 | keep_our_modes = NO; | |
308 | chptr->channelts = newts; | |
309 | } | |
310 | else | |
311 | keep_new_modes = NO; | |
312 | ||
313 | if(!keep_new_modes) | |
314 | mode = *oldmode; | |
315 | else if(keep_our_modes) | |
316 | { | |
317 | mode.mode |= oldmode->mode; | |
318 | if(oldmode->limit > mode.limit) | |
319 | mode.limit = oldmode->limit; | |
320 | if(strcmp(mode.key, oldmode->key) < 0) | |
321 | strcpy(mode.key, oldmode->key); | |
322 | if(oldmode->join_num > mode.join_num || | |
323 | (oldmode->join_num == mode.join_num && | |
324 | oldmode->join_time > mode.join_time)) | |
325 | { | |
326 | mode.join_num = oldmode->join_num; | |
327 | mode.join_time = oldmode->join_time; | |
328 | } | |
329 | if(irccmp(mode.forward, oldmode->forward) < 0) | |
330 | strcpy(mode.forward, oldmode->forward); | |
331 | } | |
332 | else | |
333 | { | |
334 | /* If setting -j, clear join throttle state -- jilles */ | |
335 | if (!mode.join_num) | |
336 | chptr->join_count = chptr->join_delta = 0; | |
337 | } | |
338 | ||
339 | set_final_mode(&mode, oldmode); | |
340 | chptr->mode = mode; | |
341 | ||
342 | /* Lost the TS, other side wins, so remove modes on this side */ | |
343 | if(!keep_our_modes) | |
344 | { | |
345 | remove_our_modes(chptr, fakesource_p); | |
346 | DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->invites.head) | |
347 | { | |
348 | del_invite(chptr, ptr->data); | |
349 | } | |
350 | sendto_channel_local(ALL_MEMBERS, chptr, | |
351 | ":%s NOTICE %s :*** Notice -- TS for %s changed from %ld to %ld", | |
352 | me.name, chptr->chname, chptr->chname, | |
353 | (long) oldts, (long) newts); | |
354 | /* Update capitalization in channel name, this makes the | |
355 | * capitalization timestamped like modes are -- jilles */ | |
356 | strcpy(chptr->chname, parv[2]); | |
357 | } | |
358 | ||
359 | if(*modebuf != '\0') | |
360 | sendto_channel_local(ALL_MEMBERS, chptr, ":%s MODE %s %s %s", | |
361 | fakesource_p->name, chptr->chname, modebuf, parabuf); | |
362 | ||
363 | *modebuf = *parabuf = '\0'; | |
364 | ||
365 | if(parv[3][0] != '0' && keep_new_modes) | |
366 | modes = channel_modes(chptr, source_p); | |
367 | else | |
368 | modes = empty_modes; | |
369 | ||
370 | mlen_nick = ircsprintf(buf_nick, ":%s SJOIN %ld %s %s :", | |
371 | source_p->name, (long) chptr->channelts, parv[2], modes); | |
372 | ptr_nick = buf_nick + mlen_nick; | |
373 | ||
374 | /* working on the presumption eventually itll be more efficient to | |
375 | * build a TS6 buffer without checking its needed.. | |
376 | */ | |
377 | mlen_uid = ircsprintf(buf_uid, ":%s SJOIN %ld %s %s :", | |
378 | use_id(source_p), (long) chptr->channelts, parv[2], modes); | |
379 | ptr_uid = buf_uid + mlen_uid; | |
380 | ||
381 | mbuf = modebuf; | |
382 | para[0] = para[1] = para[2] = para[3] = empty; | |
383 | pargs = 0; | |
384 | len_nick = len_uid = 0; | |
385 | ||
386 | /* if theres a space, theres going to be more than one nick, change the | |
387 | * first space to \0, so s is just the first nick, and point p to the | |
388 | * second nick | |
389 | */ | |
390 | if((p = strchr(s, ' ')) != NULL) | |
391 | { | |
392 | *p++ = '\0'; | |
393 | } | |
394 | ||
395 | *mbuf++ = '+'; | |
396 | ||
397 | while (s) | |
398 | { | |
399 | fl = 0; | |
400 | ||
401 | for (i = 0; i < 2; i++) | |
402 | { | |
403 | if(*s == '@') | |
404 | { | |
405 | fl |= CHFL_CHANOP; | |
406 | s++; | |
407 | } | |
408 | else if(*s == '+') | |
409 | { | |
410 | fl |= CHFL_VOICE; | |
411 | s++; | |
412 | } | |
413 | } | |
414 | ||
415 | /* if the client doesnt exist or is fake direction, skip. */ | |
416 | if(!(target_p = find_client(s)) || | |
417 | (target_p->from != client_p) || !IsPerson(target_p)) | |
418 | goto nextnick; | |
419 | ||
420 | /* we assume for these we can fit at least one nick/uid in.. */ | |
421 | ||
422 | /* check we can fit another status+nick+space into a buffer */ | |
423 | if((mlen_nick + len_nick + NICKLEN + 3) > (BUFSIZE - 3)) | |
424 | { | |
425 | *(ptr_nick - 1) = '\0'; | |
426 | sendto_server(client_p->from, NULL, NOCAPS, CAP_TS6, "%s", buf_nick); | |
427 | ptr_nick = buf_nick + mlen_nick; | |
428 | len_nick = 0; | |
429 | } | |
430 | ||
431 | if((mlen_uid + len_uid + IDLEN + 3) > (BUFSIZE - 3)) | |
432 | { | |
433 | *(ptr_uid - 1) = '\0'; | |
434 | sendto_server(client_p->from, NULL, CAP_TS6, NOCAPS, "%s", buf_uid); | |
435 | ptr_uid = buf_uid + mlen_uid; | |
436 | len_uid = 0; | |
437 | } | |
438 | ||
439 | if(keep_new_modes) | |
440 | { | |
441 | if(fl & CHFL_CHANOP) | |
442 | { | |
443 | *ptr_nick++ = '@'; | |
444 | *ptr_uid++ = '@'; | |
445 | len_nick++; | |
446 | len_uid++; | |
447 | } | |
448 | if(fl & CHFL_VOICE) | |
449 | { | |
450 | *ptr_nick++ = '+'; | |
451 | *ptr_uid++ = '+'; | |
452 | len_nick++; | |
453 | len_uid++; | |
454 | } | |
455 | } | |
456 | ||
457 | /* copy the nick to the two buffers */ | |
458 | len = ircsprintf(ptr_nick, "%s ", target_p->name); | |
459 | ptr_nick += len; | |
460 | len_nick += len; | |
461 | len = ircsprintf(ptr_uid, "%s ", use_id(target_p)); | |
462 | ptr_uid += len; | |
463 | len_uid += len; | |
464 | ||
465 | if(!keep_new_modes) | |
466 | { | |
467 | if(fl & CHFL_CHANOP) | |
468 | fl = CHFL_DEOPPED; | |
469 | else | |
470 | fl = 0; | |
471 | } | |
472 | ||
473 | if(!IsMember(target_p, chptr)) | |
474 | { | |
475 | add_user_to_channel(chptr, target_p, fl); | |
476 | sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s JOIN :%s", | |
477 | target_p->name, | |
478 | target_p->username, target_p->host, parv[2]); | |
479 | joins++; | |
480 | } | |
481 | ||
482 | if(fl & CHFL_CHANOP) | |
483 | { | |
484 | *mbuf++ = 'o'; | |
485 | para[pargs++] = target_p->name; | |
486 | ||
487 | /* a +ov user.. bleh */ | |
488 | if(fl & CHFL_VOICE) | |
489 | { | |
490 | /* its possible the +o has filled up MAXMODEPARAMS, if so, start | |
491 | * a new buffer | |
492 | */ | |
493 | if(pargs >= MAXMODEPARAMS) | |
494 | { | |
495 | *mbuf = '\0'; | |
496 | sendto_channel_local(ALL_MEMBERS, chptr, | |
497 | ":%s MODE %s %s %s %s %s %s", | |
498 | fakesource_p->name, chptr->chname, | |
499 | modebuf, | |
500 | para[0], para[1], para[2], para[3]); | |
501 | mbuf = modebuf; | |
502 | *mbuf++ = '+'; | |
503 | para[0] = para[1] = para[2] = para[3] = NULL; | |
504 | pargs = 0; | |
505 | } | |
506 | ||
507 | *mbuf++ = 'v'; | |
508 | para[pargs++] = target_p->name; | |
509 | } | |
510 | } | |
511 | else if(fl & CHFL_VOICE) | |
512 | { | |
513 | *mbuf++ = 'v'; | |
514 | para[pargs++] = target_p->name; | |
515 | } | |
516 | ||
517 | if(pargs >= MAXMODEPARAMS) | |
518 | { | |
519 | *mbuf = '\0'; | |
520 | sendto_channel_local(ALL_MEMBERS, chptr, | |
521 | ":%s MODE %s %s %s %s %s %s", | |
522 | fakesource_p->name, | |
523 | chptr->chname, | |
524 | modebuf, para[0], para[1], para[2], para[3]); | |
525 | mbuf = modebuf; | |
526 | *mbuf++ = '+'; | |
527 | para[0] = para[1] = para[2] = para[3] = NULL; | |
528 | pargs = 0; | |
529 | } | |
530 | ||
531 | nextnick: | |
532 | /* p points to the next nick */ | |
533 | s = p; | |
534 | ||
535 | /* if there was a trailing space and p was pointing to it, then we | |
536 | * need to exit.. this has the side effect of breaking double spaces | |
537 | * in an sjoin.. but that shouldnt happen anyway | |
538 | */ | |
539 | if(s && (*s == '\0')) | |
540 | s = p = NULL; | |
541 | ||
542 | /* if p was NULL due to no spaces, s wont exist due to the above, so | |
543 | * we cant check it for spaces.. if there are no spaces, then when | |
544 | * we next get here, s will be NULL | |
545 | */ | |
546 | if(s && ((p = strchr(s, ' ')) != NULL)) | |
547 | { | |
548 | *p++ = '\0'; | |
549 | } | |
550 | } | |
551 | ||
552 | *mbuf = '\0'; | |
553 | if(pargs) | |
554 | { | |
555 | sendto_channel_local(ALL_MEMBERS, chptr, | |
556 | ":%s MODE %s %s %s %s %s %s", | |
557 | fakesource_p->name, chptr->chname, modebuf, | |
558 | para[0], CheckEmpty(para[1]), | |
559 | CheckEmpty(para[2]), CheckEmpty(para[3])); | |
560 | } | |
561 | ||
562 | if(!joins && !(chptr->mode.mode & MODE_PERMANENT) && isnew) | |
563 | { | |
564 | destroy_channel(chptr); | |
565 | ||
566 | return 0; | |
567 | } | |
568 | ||
569 | /* Keep the colon if we're sending an SJOIN without nicks -- jilles */ | |
570 | if (joins) | |
571 | { | |
572 | *(ptr_nick - 1) = '\0'; | |
573 | *(ptr_uid - 1) = '\0'; | |
574 | } | |
575 | ||
576 | sendto_server(client_p->from, NULL, CAP_TS6, NOCAPS, "%s", buf_uid); | |
577 | sendto_server(client_p->from, NULL, NOCAPS, CAP_TS6, "%s", buf_nick); | |
578 | ||
579 | /* if the source does TS6 we have to remove our bans. Its now safe | |
580 | * to issue -b's to the non-ts6 servers, as the sjoin we've just | |
581 | * sent will kill any ops they have. | |
582 | */ | |
583 | if(!keep_our_modes && source_p->id[0] != '\0') | |
584 | { | |
585 | if(dlink_list_length(&chptr->banlist) > 0) | |
586 | remove_ban_list(chptr, fakesource_p, &chptr->banlist, 'b', NOCAPS, ALL_MEMBERS); | |
587 | ||
588 | if(dlink_list_length(&chptr->exceptlist) > 0) | |
589 | remove_ban_list(chptr, fakesource_p, &chptr->exceptlist, | |
590 | 'e', CAP_EX, ONLY_CHANOPS); | |
591 | ||
592 | if(dlink_list_length(&chptr->invexlist) > 0) | |
593 | remove_ban_list(chptr, fakesource_p, &chptr->invexlist, | |
594 | 'I', CAP_IE, ONLY_CHANOPS); | |
595 | ||
596 | if(dlink_list_length(&chptr->quietlist) > 0) | |
597 | remove_ban_list(chptr, fakesource_p, &chptr->quietlist, | |
598 | 'q', NOCAPS, ALL_MEMBERS); | |
599 | ||
600 | chptr->bants++; | |
601 | } | |
602 | ||
603 | return 0; | |
604 | } | |
605 | ||
606 | struct mode_letter | |
607 | { | |
608 | int mode; | |
609 | char letter; | |
610 | }; | |
611 | ||
612 | static struct mode_letter flags[] = { | |
613 | {MODE_NOPRIVMSGS, 'n'}, | |
614 | {MODE_TOPICLIMIT, 't'}, | |
615 | {MODE_SECRET, 's'}, | |
616 | {MODE_MODERATED, 'm'}, | |
617 | {MODE_INVITEONLY, 'i'}, | |
618 | {MODE_PRIVATE, 'p'}, | |
619 | {MODE_REGONLY, 'r'}, | |
620 | {MODE_EXLIMIT, 'L'}, | |
621 | {MODE_PERMANENT, 'P'}, | |
622 | {MODE_NOCOLOR, 'c'}, | |
623 | {MODE_FREEINVITE, 'g'}, | |
624 | {MODE_OPMODERATE, 'z'}, | |
625 | {MODE_FREETARGET, 'F'}, | |
626 | {MODE_DISFORWARD, 'Q'}, | |
627 | {0, 0} | |
628 | }; | |
629 | ||
630 | static void | |
631 | set_final_mode(struct Mode *mode, struct Mode *oldmode) | |
632 | { | |
633 | int dir = MODE_QUERY; | |
634 | char *pbuf = parabuf; | |
635 | int len; | |
636 | int i; | |
637 | ||
638 | /* ok, first get a list of modes we need to add */ | |
639 | for (i = 0; flags[i].letter; i++) | |
640 | { | |
641 | if((mode->mode & flags[i].mode) && !(oldmode->mode & flags[i].mode)) | |
642 | { | |
643 | if(dir != MODE_ADD) | |
644 | { | |
645 | *mbuf++ = '+'; | |
646 | dir = MODE_ADD; | |
647 | } | |
648 | *mbuf++ = flags[i].letter; | |
649 | } | |
650 | } | |
651 | ||
652 | /* now the ones we need to remove. */ | |
653 | for (i = 0; flags[i].letter; i++) | |
654 | { | |
655 | if((oldmode->mode & flags[i].mode) && !(mode->mode & flags[i].mode)) | |
656 | { | |
657 | if(dir != MODE_DEL) | |
658 | { | |
659 | *mbuf++ = '-'; | |
660 | dir = MODE_DEL; | |
661 | } | |
662 | *mbuf++ = flags[i].letter; | |
663 | } | |
664 | } | |
665 | ||
666 | if(oldmode->limit && !mode->limit) | |
667 | { | |
668 | if(dir != MODE_DEL) | |
669 | { | |
670 | *mbuf++ = '-'; | |
671 | dir = MODE_DEL; | |
672 | } | |
673 | *mbuf++ = 'l'; | |
674 | } | |
675 | if(oldmode->key[0] && !mode->key[0]) | |
676 | { | |
677 | if(dir != MODE_DEL) | |
678 | { | |
679 | *mbuf++ = '-'; | |
680 | dir = MODE_DEL; | |
681 | } | |
682 | *mbuf++ = 'k'; | |
683 | len = ircsprintf(pbuf, "%s ", oldmode->key); | |
684 | pbuf += len; | |
685 | pargs++; | |
686 | } | |
687 | if(oldmode->join_num && !mode->join_num) | |
688 | { | |
689 | if(dir != MODE_DEL) | |
690 | { | |
691 | *mbuf++ = '-'; | |
692 | dir = MODE_DEL; | |
693 | } | |
694 | *mbuf++ = 'j'; | |
695 | } | |
696 | if(oldmode->forward[0] && !mode->forward[0]) | |
697 | { | |
698 | if(dir != MODE_DEL) | |
699 | { | |
700 | *mbuf++ = '-'; | |
701 | dir = MODE_DEL; | |
702 | } | |
703 | *mbuf++ = 'f'; | |
704 | } | |
705 | if(mode->limit && oldmode->limit != mode->limit) | |
706 | { | |
707 | if(dir != MODE_ADD) | |
708 | { | |
709 | *mbuf++ = '+'; | |
710 | dir = MODE_ADD; | |
711 | } | |
712 | *mbuf++ = 'l'; | |
713 | len = ircsprintf(pbuf, "%d ", mode->limit); | |
714 | pbuf += len; | |
715 | pargs++; | |
716 | } | |
717 | if(mode->key[0] && strcmp(oldmode->key, mode->key)) | |
718 | { | |
719 | if(dir != MODE_ADD) | |
720 | { | |
721 | *mbuf++ = '+'; | |
722 | dir = MODE_ADD; | |
723 | } | |
724 | *mbuf++ = 'k'; | |
725 | len = ircsprintf(pbuf, "%s ", mode->key); | |
726 | pbuf += len; | |
727 | pargs++; | |
728 | } | |
729 | if(mode->join_num && (oldmode->join_num != mode->join_num || oldmode->join_time != mode->join_time)) | |
730 | { | |
731 | if(dir != MODE_ADD) | |
732 | { | |
733 | *mbuf++ = '+'; | |
734 | dir = MODE_ADD; | |
735 | } | |
736 | *mbuf++ = 'j'; | |
737 | len = ircsprintf(pbuf, "%d:%d ", mode->join_num, mode->join_time); | |
738 | pbuf += len; | |
739 | pargs++; | |
740 | } | |
741 | if(mode->forward[0] && strcmp(oldmode->forward, mode->forward) && ConfigChannel.use_forward) | |
742 | { | |
743 | if(dir != MODE_ADD) | |
744 | { | |
745 | *mbuf++ = '+'; | |
746 | dir = MODE_ADD; | |
747 | } | |
748 | *mbuf++ = 'f'; | |
749 | len = ircsprintf(pbuf, "%s ", mode->forward); | |
750 | pbuf += len; | |
751 | pargs++; | |
752 | } | |
753 | *mbuf = '\0'; | |
754 | } | |
755 | ||
756 | /* | |
757 | * remove_our_modes | |
758 | * | |
759 | * inputs - | |
760 | * output - | |
761 | * side effects - | |
762 | */ | |
763 | static void | |
764 | remove_our_modes(struct Channel *chptr, struct Client *source_p) | |
765 | { | |
766 | struct membership *msptr; | |
767 | dlink_node *ptr; | |
768 | char lmodebuf[MODEBUFLEN]; | |
769 | char *lpara[MAXMODEPARAMS]; | |
770 | int count = 0; | |
771 | int i; | |
772 | ||
773 | mbuf = lmodebuf; | |
774 | *mbuf++ = '-'; | |
775 | ||
776 | for (i = 0; i < MAXMODEPARAMS; i++) | |
777 | lpara[i] = NULL; | |
778 | ||
779 | DLINK_FOREACH(ptr, chptr->members.head) | |
780 | { | |
781 | msptr = ptr->data; | |
782 | ||
783 | if(is_chanop(msptr)) | |
784 | { | |
785 | msptr->flags &= ~CHFL_CHANOP; | |
786 | lpara[count++] = msptr->client_p->name; | |
787 | *mbuf++ = 'o'; | |
788 | ||
789 | /* +ov, might not fit so check. */ | |
790 | if(is_voiced(msptr)) | |
791 | { | |
792 | if(count >= MAXMODEPARAMS) | |
793 | { | |
794 | *mbuf = '\0'; | |
795 | sendto_channel_local(ALL_MEMBERS, chptr, | |
796 | ":%s MODE %s %s %s %s %s %s", | |
797 | me.name, chptr->chname, | |
798 | lmodebuf, lpara[0], lpara[1], | |
799 | lpara[2], lpara[3]); | |
800 | ||
801 | /* preserve the initial '-' */ | |
802 | mbuf = lmodebuf; | |
803 | *mbuf++ = '-'; | |
804 | count = 0; | |
805 | ||
806 | for (i = 0; i < MAXMODEPARAMS; i++) | |
807 | lpara[i] = NULL; | |
808 | } | |
809 | ||
810 | msptr->flags &= ~CHFL_VOICE; | |
811 | lpara[count++] = msptr->client_p->name; | |
812 | *mbuf++ = 'v'; | |
813 | } | |
814 | } | |
815 | else if(is_voiced(msptr)) | |
816 | { | |
817 | msptr->flags &= ~CHFL_VOICE; | |
818 | lpara[count++] = msptr->client_p->name; | |
819 | *mbuf++ = 'v'; | |
820 | } | |
821 | else | |
822 | continue; | |
823 | ||
824 | if(count >= MAXMODEPARAMS) | |
825 | { | |
826 | *mbuf = '\0'; | |
827 | sendto_channel_local(ALL_MEMBERS, chptr, | |
828 | ":%s MODE %s %s %s %s %s %s", | |
829 | me.name, chptr->chname, lmodebuf, | |
830 | lpara[0], lpara[1], lpara[2], lpara[3]); | |
831 | mbuf = lmodebuf; | |
832 | *mbuf++ = '-'; | |
833 | count = 0; | |
834 | ||
835 | for (i = 0; i < MAXMODEPARAMS; i++) | |
836 | lpara[i] = NULL; | |
837 | } | |
838 | } | |
839 | ||
840 | if(count != 0) | |
841 | { | |
842 | *mbuf = '\0'; | |
843 | sendto_channel_local(ALL_MEMBERS, chptr, | |
844 | ":%s MODE %s %s %s %s %s %s", | |
845 | me.name, chptr->chname, lmodebuf, | |
846 | EmptyString(lpara[0]) ? "" : lpara[0], | |
847 | EmptyString(lpara[1]) ? "" : lpara[1], | |
848 | EmptyString(lpara[2]) ? "" : lpara[2], | |
849 | EmptyString(lpara[3]) ? "" : lpara[3]); | |
850 | ||
851 | } | |
852 | } | |
853 | ||
854 | /* remove_ban_list() | |
855 | * | |
856 | * inputs - channel, source, list to remove, char of mode, caps needed | |
857 | * outputs - | |
858 | * side effects - given list is removed, with modes issued to local clients | |
859 | * and non-TS6 servers. | |
860 | */ | |
861 | static void | |
862 | remove_ban_list(struct Channel *chptr, struct Client *source_p, | |
863 | dlink_list * list, char c, int cap, int mems) | |
864 | { | |
865 | static char lmodebuf[BUFSIZE]; | |
866 | static char lparabuf[BUFSIZE]; | |
867 | struct Ban *banptr; | |
868 | dlink_node *ptr; | |
869 | dlink_node *next_ptr; | |
870 | char *pbuf; | |
871 | int count = 0; | |
872 | int cur_len, mlen, plen; | |
873 | ||
874 | pbuf = lparabuf; | |
875 | ||
876 | cur_len = mlen = ircsprintf(lmodebuf, ":%s MODE %s -", source_p->name, chptr->chname); | |
877 | mbuf = lmodebuf + mlen; | |
878 | ||
879 | DLINK_FOREACH_SAFE(ptr, next_ptr, list->head) | |
880 | { | |
881 | banptr = ptr->data; | |
882 | ||
883 | /* trailing space, and the mode letter itself */ | |
884 | plen = strlen(banptr->banstr) + 2; | |
885 | ||
886 | if(count >= MAXMODEPARAMS || (cur_len + plen) > BUFSIZE - 4) | |
887 | { | |
888 | /* remove trailing space */ | |
889 | *mbuf = '\0'; | |
890 | *(pbuf - 1) = '\0'; | |
891 | ||
892 | sendto_channel_local(mems, chptr, "%s %s", lmodebuf, lparabuf); | |
893 | /* Tricky tricky. If we changed source_p to &me | |
894 | * in ms_sjoin(), this still won't send stuff | |
895 | * where it should not be sent, because the | |
896 | * real source_p does TS6 -- jilles */ | |
897 | sendto_server(source_p, chptr, cap, CAP_TS6, "%s %s", lmodebuf, lparabuf); | |
898 | ||
899 | cur_len = mlen; | |
900 | mbuf = lmodebuf + mlen; | |
901 | pbuf = lparabuf; | |
902 | count = 0; | |
903 | } | |
904 | ||
905 | *mbuf++ = c; | |
906 | cur_len += plen; | |
907 | pbuf += ircsprintf(pbuf, "%s ", banptr->banstr); | |
908 | count++; | |
909 | ||
910 | free_ban(banptr); | |
911 | } | |
912 | ||
913 | *mbuf = '\0'; | |
914 | *(pbuf - 1) = '\0'; | |
915 | sendto_channel_local(mems, chptr, "%s %s", lmodebuf, lparabuf); | |
916 | sendto_server(source_p, chptr, cap, CAP_TS6, "%s %s", lmodebuf, lparabuf); | |
917 | ||
918 | list->head = list->tail = NULL; | |
919 | list->length = 0; | |
920 | } |