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1 | /* | |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * m_resv.c: Reserves(jupes) a nickname or channel. | |
4 | * | |
5 | * Copyright (C) 2001-2002 Hybrid Development Team | |
6 | * Copyright (C) 2002-2005 ircd-ratbox development team | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
21 | * USA | |
22 | * | |
23 | * $Id$ | |
24 | */ | |
25 | ||
26 | #include "stdinc.h" | |
27 | #include "client.h" | |
28 | #include "channel.h" | |
29 | #include "ircd.h" | |
30 | #include "numeric.h" | |
31 | #include "s_serv.h" | |
32 | #include "send.h" | |
33 | #include "msg.h" | |
34 | #include "parse.h" | |
35 | #include "modules.h" | |
36 | #include "s_conf.h" | |
37 | #include "s_newconf.h" | |
38 | #include "hash.h" | |
39 | #include "logger.h" | |
40 | #include "bandbi.h" | |
41 | ||
42 | static int mo_resv(struct Client *, struct Client *, int, const char **); | |
43 | static int ms_resv(struct Client *, struct Client *, int, const char **); | |
44 | static int me_resv(struct Client *, struct Client *, int, const char **); | |
45 | static int mo_unresv(struct Client *, struct Client *, int, const char **); | |
46 | static int ms_unresv(struct Client *, struct Client *, int, const char **); | |
47 | static int me_unresv(struct Client *, struct Client *, int, const char **); | |
48 | ||
49 | struct Message resv_msgtab = { | |
50 | "RESV", 0, 0, 0, MFLG_SLOW | MFLG_UNREG, | |
51 | {mg_ignore, mg_not_oper, {ms_resv, 4}, {ms_resv, 4}, {me_resv, 5}, {mo_resv, 3}} | |
52 | }; | |
53 | ||
54 | struct Message unresv_msgtab = { | |
55 | "UNRESV", 0, 0, 0, MFLG_SLOW | MFLG_UNREG, | |
56 | {mg_ignore, mg_not_oper, {ms_unresv, 3}, {ms_unresv, 3}, {me_unresv, 2}, {mo_unresv, 2}} | |
57 | }; | |
58 | ||
59 | mapi_clist_av1 resv_clist[] = { &resv_msgtab, &unresv_msgtab, NULL }; | |
60 | ||
61 | DECLARE_MODULE_AV1(resv, NULL, NULL, resv_clist, NULL, NULL, "$Revision$"); | |
62 | ||
63 | static void parse_resv(struct Client *source_p, const char *name, | |
64 | const char *reason, int temp_time); | |
65 | static void propagate_resv(struct Client *source_p, const char *target, | |
66 | int temp_time, const char *name, const char *reason); | |
67 | static void cluster_resv(struct Client *source_p, int temp_time, | |
68 | const char *name, const char *reason); | |
69 | ||
70 | static void handle_remote_unresv(struct Client *source_p, const char *name); | |
71 | static void remove_resv(struct Client *source_p, const char *name); | |
72 | static void resv_chan_forcepart(const char *name, const char *reason, int temp_time); | |
73 | ||
74 | /* | |
75 | * mo_resv() | |
76 | * parv[0] = sender prefix | |
77 | * parv[1] = channel/nick to forbid | |
78 | * parv[2] = reason | |
79 | */ | |
80 | static int | |
81 | mo_resv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
82 | { | |
83 | const char *name; | |
84 | const char *reason; | |
85 | const char *target_server = NULL; | |
86 | int temp_time; | |
87 | int loc = 1; | |
88 | ||
89 | if(!IsOperResv(source_p)) | |
90 | { | |
91 | sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "resv"); | |
92 | return 0; | |
93 | } | |
94 | ||
95 | /* RESV [time] <name> [ON <server>] :<reason> */ | |
96 | ||
97 | if((temp_time = valid_temp_time(parv[loc])) >= 0) | |
98 | loc++; | |
99 | /* we just set temp_time to -1! */ | |
100 | else | |
101 | temp_time = 0; | |
102 | ||
103 | name = parv[loc]; | |
104 | loc++; | |
105 | ||
106 | if((parc >= loc + 2) && (irccmp(parv[loc], "ON") == 0)) | |
107 | { | |
108 | if(!IsOperRemoteBan(source_p)) | |
109 | { | |
110 | sendto_one(source_p, form_str(ERR_NOPRIVS), | |
111 | me.name, source_p->name, "remoteban"); | |
112 | return 0; | |
113 | } | |
114 | ||
115 | target_server = parv[loc + 1]; | |
116 | loc += 2; | |
117 | } | |
118 | ||
119 | if(parc <= loc || EmptyString(parv[loc])) | |
120 | { | |
121 | sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS), me.name, source_p->name, "RESV"); | |
122 | return 0; | |
123 | } | |
124 | ||
125 | reason = parv[loc]; | |
126 | ||
127 | /* remote resv.. */ | |
128 | if(target_server) | |
129 | { | |
130 | propagate_resv(source_p, target_server, temp_time, name, reason); | |
131 | ||
132 | if(match(target_server, me.name) == 0) | |
133 | return 0; | |
134 | } | |
135 | else if(rb_dlink_list_length(&cluster_conf_list) > 0) | |
136 | cluster_resv(source_p, temp_time, name, reason); | |
137 | ||
138 | parse_resv(source_p, name, reason, temp_time); | |
139 | ||
140 | return 0; | |
141 | } | |
142 | ||
143 | /* ms_resv() | |
144 | * parv[0] = sender prefix | |
145 | * parv[1] = target server | |
146 | * parv[2] = channel/nick to forbid | |
147 | * parv[3] = reason | |
148 | */ | |
149 | static int | |
150 | ms_resv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
151 | { | |
152 | /* parv[0] parv[1] parv[2] parv[3] | |
153 | * oper target server resv reason | |
154 | */ | |
155 | propagate_resv(source_p, parv[1], 0, parv[2], parv[3]); | |
156 | ||
157 | if(!match(parv[1], me.name)) | |
158 | return 0; | |
159 | ||
160 | if(!IsPerson(source_p)) | |
161 | return 0; | |
162 | ||
163 | parse_resv(source_p, parv[2], parv[3], 0); | |
164 | return 0; | |
165 | } | |
166 | ||
167 | static int | |
168 | me_resv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
169 | { | |
170 | /* time name 0 :reason */ | |
171 | if(!IsPerson(source_p)) | |
172 | return 0; | |
173 | ||
174 | parse_resv(source_p, parv[2], parv[4], atoi(parv[1])); | |
175 | return 0; | |
176 | } | |
177 | ||
178 | /* parse_resv() | |
179 | * | |
180 | * inputs - source_p if error messages wanted | |
181 | * - thing to resv | |
182 | * - reason for resv | |
183 | * outputs - | |
184 | * side effects - will parse the resv and create it if valid | |
185 | */ | |
186 | static void | |
187 | parse_resv(struct Client *source_p, const char *name, const char *reason, int temp_time) | |
188 | { | |
189 | struct ConfItem *aconf; | |
190 | ||
191 | if(!MyClient(source_p) && | |
192 | !find_shared_conf(source_p->username, source_p->host, | |
193 | source_p->servptr->name, | |
194 | (temp_time > 0) ? SHARED_TRESV : SHARED_PRESV)) | |
195 | return; | |
196 | ||
197 | if(IsChannelName(name)) | |
198 | { | |
199 | if(hash_find_resv(name)) | |
200 | { | |
201 | sendto_one_notice(source_p, | |
202 | ":A RESV has already been placed on channel: %s", name); | |
203 | return; | |
204 | } | |
205 | ||
206 | if(strlen(name) > CHANNELLEN) | |
207 | { | |
208 | sendto_one_notice(source_p, ":Invalid RESV length: %s", name); | |
209 | return; | |
210 | } | |
211 | ||
212 | if(strchr(reason, '"')) | |
213 | { | |
214 | sendto_one_notice(source_p, ":Invalid character '\"' in comment"); | |
215 | return; | |
216 | } | |
217 | ||
218 | aconf = make_conf(); | |
219 | aconf->status = CONF_RESV_CHANNEL; | |
220 | aconf->port = 0; | |
221 | aconf->host = rb_strdup(name); | |
222 | aconf->passwd = rb_strdup(reason); | |
223 | add_to_resv_hash(aconf->host, aconf); | |
224 | resv_chan_forcepart(aconf->host, aconf->passwd, temp_time); | |
225 | ||
226 | if(temp_time > 0) | |
227 | { | |
228 | aconf->hold = rb_current_time() + temp_time; | |
229 | ||
230 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
231 | "%s added temporary %d min. RESV for [%s] [%s]", | |
232 | get_oper_name(source_p), temp_time / 60, | |
233 | name, reason); | |
234 | ilog(L_KLINE, "R %s %d %s %s", | |
235 | get_oper_name(source_p), temp_time / 60, name, reason); | |
236 | sendto_one_notice(source_p, ":Added temporary %d min. RESV [%s]", | |
237 | temp_time / 60, name); | |
238 | } | |
239 | else | |
240 | { | |
241 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
242 | "%s added RESV for [%s] [%s]", | |
243 | get_oper_name(source_p), name, reason); | |
244 | ilog(L_KLINE, "R %s 0 %s %s", | |
245 | get_oper_name(source_p), name, reason); | |
246 | sendto_one_notice(source_p, ":Added RESV [%s]", name); | |
247 | ||
248 | bandb_add(BANDB_RESV, source_p, aconf->host, NULL, aconf->passwd, NULL, 0); | |
249 | } | |
250 | } | |
251 | else if(clean_resv_nick(name)) | |
252 | { | |
253 | if(strlen(name) > NICKLEN * 2) | |
254 | { | |
255 | sendto_one_notice(source_p, ":Invalid RESV length: %s", name); | |
256 | return; | |
257 | } | |
258 | ||
259 | if(strchr(reason, '"')) | |
260 | { | |
261 | sendto_one_notice(source_p, ":Invalid character '\"' in comment"); | |
262 | return; | |
263 | } | |
264 | ||
265 | if(!valid_wild_card_simple(name)) | |
266 | { | |
267 | sendto_one_notice(source_p, | |
268 | ":Please include at least %d non-wildcard " | |
269 | "characters with the resv", | |
270 | ConfigFileEntry.min_nonwildcard_simple); | |
271 | return; | |
272 | } | |
273 | ||
274 | if(find_nick_resv_mask(name)) | |
275 | { | |
276 | sendto_one_notice(source_p, | |
277 | ":A RESV has already been placed on nick: %s", name); | |
278 | return; | |
279 | } | |
280 | ||
281 | aconf = make_conf(); | |
282 | aconf->status = CONF_RESV_NICK; | |
283 | aconf->port = 0; | |
284 | aconf->host = rb_strdup(name); | |
285 | aconf->passwd = rb_strdup(reason); | |
286 | rb_dlinkAddAlloc(aconf, &resv_conf_list); | |
287 | ||
288 | if(temp_time > 0) | |
289 | { | |
290 | aconf->hold = rb_current_time() + temp_time; | |
291 | ||
292 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
293 | "%s added temporary %d min. RESV for [%s] [%s]", | |
294 | get_oper_name(source_p), temp_time / 60, | |
295 | name, reason); | |
296 | ilog(L_KLINE, "R %s %d %s %s", | |
297 | get_oper_name(source_p), temp_time / 60, name, reason); | |
298 | sendto_one_notice(source_p, ":Added temporary %d min. RESV [%s]", | |
299 | temp_time / 60, name); | |
300 | } | |
301 | else | |
302 | { | |
303 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
304 | "%s added RESV for [%s] [%s]", | |
305 | get_oper_name(source_p), name, reason); | |
306 | ilog(L_KLINE, "R %s 0 %s %s", | |
307 | get_oper_name(source_p), name, reason); | |
308 | sendto_one_notice(source_p, ":Added RESV [%s]", name); | |
309 | ||
310 | bandb_add(BANDB_RESV, source_p, aconf->host, NULL, aconf->passwd, NULL, 0); | |
311 | } | |
312 | } | |
313 | else | |
314 | sendto_one_notice(source_p, ":You have specified an invalid resv: [%s]", name); | |
315 | } | |
316 | ||
317 | static void | |
318 | propagate_resv(struct Client *source_p, const char *target, | |
319 | int temp_time, const char *name, const char *reason) | |
320 | { | |
321 | if(!temp_time) | |
322 | { | |
323 | sendto_match_servs(source_p, target, | |
324 | CAP_CLUSTER, NOCAPS, "RESV %s %s :%s", target, name, reason); | |
325 | sendto_match_servs(source_p, target, | |
326 | CAP_ENCAP, CAP_CLUSTER, | |
327 | "ENCAP %s RESV %d %s 0 :%s", target, temp_time, name, reason); | |
328 | } | |
329 | else | |
330 | sendto_match_servs(source_p, target, | |
331 | CAP_ENCAP, NOCAPS, | |
332 | "ENCAP %s RESV %d %s 0 :%s", target, temp_time, name, reason); | |
333 | } | |
334 | ||
335 | static void | |
336 | cluster_resv(struct Client *source_p, int temp_time, const char *name, const char *reason) | |
337 | { | |
338 | struct remote_conf *shared_p; | |
339 | rb_dlink_node *ptr; | |
340 | ||
341 | RB_DLINK_FOREACH(ptr, cluster_conf_list.head) | |
342 | { | |
343 | shared_p = ptr->data; | |
344 | ||
345 | /* old protocol cant handle temps, and we dont really want | |
346 | * to convert them to perm.. --fl | |
347 | */ | |
348 | if(!temp_time) | |
349 | { | |
350 | if(!(shared_p->flags & SHARED_PRESV)) | |
351 | continue; | |
352 | ||
353 | sendto_match_servs(source_p, shared_p->server, | |
354 | CAP_CLUSTER, NOCAPS, | |
355 | "RESV %s %s :%s", shared_p->server, name, reason); | |
356 | sendto_match_servs(source_p, shared_p->server, | |
357 | CAP_ENCAP, CAP_CLUSTER, | |
358 | "ENCAP %s RESV 0 %s 0 :%s", | |
359 | shared_p->server, name, reason); | |
360 | } | |
361 | else if(shared_p->flags & SHARED_TRESV) | |
362 | sendto_match_servs(source_p, shared_p->server, | |
363 | CAP_ENCAP, NOCAPS, | |
364 | "ENCAP %s RESV %d %s 0 :%s", | |
365 | shared_p->server, temp_time, name, reason); | |
366 | } | |
367 | } | |
368 | ||
369 | ||
370 | /* | |
371 | * mo_unresv() | |
372 | * parv[0] = sender prefix | |
373 | * parv[1] = channel/nick to unforbid | |
374 | */ | |
375 | static int | |
376 | mo_unresv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
377 | { | |
378 | if(!IsOperResv(source_p)) | |
379 | { | |
380 | sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "resv"); | |
381 | return 0; | |
382 | } | |
383 | ||
384 | if((parc == 4) && (irccmp(parv[2], "ON") == 0)) | |
385 | { | |
386 | if(!IsOperRemoteBan(source_p)) | |
387 | { | |
388 | sendto_one(source_p, form_str(ERR_NOPRIVS), | |
389 | me.name, source_p->name, "remoteban"); | |
390 | return 0; | |
391 | } | |
392 | ||
393 | propagate_generic(source_p, "UNRESV", parv[3], CAP_CLUSTER, "%s", parv[1]); | |
394 | ||
395 | if(match(parv[3], me.name) == 0) | |
396 | return 0; | |
397 | } | |
398 | else if(rb_dlink_list_length(&cluster_conf_list) > 0) | |
399 | cluster_generic(source_p, "UNRESV", SHARED_UNRESV, CAP_CLUSTER, "%s", parv[1]); | |
400 | ||
401 | remove_resv(source_p, parv[1]); | |
402 | return 0; | |
403 | } | |
404 | ||
405 | /* ms_unresv() | |
406 | * parv[0] = sender prefix | |
407 | * parv[1] = target server | |
408 | * parv[2] = resv to remove | |
409 | */ | |
410 | static int | |
411 | ms_unresv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
412 | { | |
413 | /* parv[0] parv[1] parv[2] | |
414 | * oper target server resv to remove | |
415 | */ | |
416 | propagate_generic(source_p, "UNRESV", parv[1], CAP_CLUSTER, "%s", parv[2]); | |
417 | ||
418 | if(!match(parv[1], me.name)) | |
419 | return 0; | |
420 | ||
421 | if(!IsPerson(source_p)) | |
422 | return 0; | |
423 | ||
424 | handle_remote_unresv(source_p, parv[2]); | |
425 | return 0; | |
426 | } | |
427 | ||
428 | static int | |
429 | me_unresv(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
430 | { | |
431 | /* name */ | |
432 | if(!IsPerson(source_p)) | |
433 | return 0; | |
434 | ||
435 | handle_remote_unresv(source_p, parv[1]); | |
436 | return 0; | |
437 | } | |
438 | ||
439 | static void | |
440 | handle_remote_unresv(struct Client *source_p, const char *name) | |
441 | { | |
442 | if(!find_shared_conf(source_p->username, source_p->host, | |
443 | source_p->servptr->name, SHARED_UNRESV)) | |
444 | return; | |
445 | ||
446 | remove_resv(source_p, name); | |
447 | ||
448 | return; | |
449 | } | |
450 | ||
451 | static void | |
452 | remove_resv(struct Client *source_p, const char *name) | |
453 | { | |
454 | struct ConfItem *aconf = NULL; | |
455 | ||
456 | if(IsChannelName(name)) | |
457 | { | |
458 | if((aconf = hash_find_resv(name)) == NULL) | |
459 | { | |
460 | sendto_one_notice(source_p, ":No RESV for %s", name); | |
461 | return; | |
462 | } | |
463 | ||
464 | sendto_one_notice(source_p, ":RESV for [%s] is removed", name); | |
465 | ilog(L_KLINE, "UR %s %s", get_oper_name(source_p), name); | |
466 | if(!aconf->hold) | |
467 | { | |
468 | bandb_del(BANDB_RESV, aconf->host, NULL); | |
469 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
470 | "%s has removed the RESV for: [%s]", | |
471 | get_oper_name(source_p), name); | |
472 | } | |
473 | else | |
474 | { | |
475 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
476 | "%s has removed the temporary RESV for: [%s]", | |
477 | get_oper_name(source_p), name); | |
478 | } | |
479 | del_from_resv_hash(name, aconf); | |
480 | } | |
481 | else | |
482 | { | |
483 | rb_dlink_node *ptr; | |
484 | ||
485 | RB_DLINK_FOREACH(ptr, resv_conf_list.head) | |
486 | { | |
487 | aconf = ptr->data; | |
488 | ||
489 | if(irccmp(aconf->host, name)) | |
490 | aconf = NULL; | |
491 | else | |
492 | break; | |
493 | } | |
494 | ||
495 | if(aconf == NULL) | |
496 | { | |
497 | sendto_one_notice(source_p, ":No RESV for %s", name); | |
498 | return; | |
499 | } | |
500 | ||
501 | if(!aconf->hold) | |
502 | bandb_del(BANDB_RESV, aconf->host, NULL); | |
503 | else | |
504 | { | |
505 | sendto_one_notice(source_p, ":RESV for [%s] is removed", name); | |
506 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
507 | "%s has removed the RESV for: [%s]", | |
508 | get_oper_name(source_p), name); | |
509 | ilog(L_KLINE, "UR %s %s", get_oper_name(source_p), name); | |
510 | } | |
511 | /* already have ptr from the loop above.. */ | |
512 | rb_dlinkDestroy(ptr, &resv_conf_list); | |
513 | } | |
514 | free_conf(aconf); | |
515 | ||
516 | return; | |
517 | } | |
518 | ||
519 | static void | |
520 | resv_chan_forcepart(const char *name, const char *reason, int temp_time) | |
521 | { | |
522 | rb_dlink_node *ptr; | |
523 | rb_dlink_node *next_ptr; | |
524 | struct Channel *chptr; | |
525 | struct membership *msptr; | |
526 | struct Client *target_p; | |
527 | ||
528 | if(!ConfigChannel.resv_forcepart) | |
529 | return; | |
530 | ||
531 | /* for each user on our server in the channel list | |
532 | * send them a PART, and notify opers. | |
533 | */ | |
534 | chptr = find_channel(name); | |
535 | if(chptr != NULL) | |
536 | { | |
537 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->locmembers.head) | |
538 | { | |
539 | msptr = ptr->data; | |
540 | target_p = msptr->client_p; | |
541 | ||
542 | if(IsExemptResv(target_p)) | |
543 | continue; | |
544 | ||
545 | sendto_server(target_p, chptr, CAP_TS6, NOCAPS, | |
546 | ":%s PART %s", target_p->id, chptr->chname); | |
547 | ||
548 | sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s PART %s :%s", | |
549 | target_p->name, target_p->username, | |
550 | target_p->host, chptr->chname, target_p->name); | |
551 | ||
552 | remove_user_from_channel(msptr); | |
553 | ||
554 | /* notify opers & user they were removed from the channel */ | |
555 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
556 | "Forced PART for %s!%s@%s from %s (%s)", | |
557 | target_p->name, target_p->username, | |
558 | target_p->host, name, reason); | |
559 | ||
560 | if(temp_time > 0) | |
561 | sendto_one_notice(target_p, ":*** Channel %s is temporarily unavailable on this server.", | |
562 | name); | |
563 | else | |
564 | sendto_one_notice(target_p, ":*** Channel %s is no longer available on this server.", | |
565 | name); | |
566 | } | |
567 | } | |
568 | } |