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212380e3 AC |
1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * m_mode.c: Sets a user or channel mode. | |
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_mode.c 1006 2006-03-09 15:32:14Z nenolod $ | |
25 | */ | |
26 | ||
27 | #include "stdinc.h" | |
212380e3 AC |
28 | #include "channel.h" |
29 | #include "client.h" | |
30 | #include "hash.h" | |
4562c604 | 31 | #include "match.h" |
212380e3 AC |
32 | #include "ircd.h" |
33 | #include "numeric.h" | |
34 | #include "s_user.h" | |
35 | #include "s_conf.h" | |
36 | #include "s_serv.h" | |
4016731b | 37 | #include "logger.h" |
212380e3 AC |
38 | #include "send.h" |
39 | #include "msg.h" | |
40 | #include "parse.h" | |
41 | #include "modules.h" | |
42 | #include "packet.h" | |
212380e3 AC |
43 | #include "s_newconf.h" |
44 | ||
45 | static int m_mode(struct Client *, struct Client *, int, const char **); | |
46 | static int ms_mode(struct Client *, struct Client *, int, const char **); | |
47 | static int ms_tmode(struct Client *, struct Client *, int, const char **); | |
48 | static int ms_bmask(struct Client *, struct Client *, int, const char **); | |
49 | ||
50 | struct Message mode_msgtab = { | |
51 | "MODE", 0, 0, 0, MFLG_SLOW, | |
52 | {mg_unreg, {m_mode, 2}, {m_mode, 3}, {ms_mode, 3}, mg_ignore, {m_mode, 2}} | |
53 | }; | |
54 | struct Message tmode_msgtab = { | |
55 | "TMODE", 0, 0, 0, MFLG_SLOW, | |
56 | {mg_ignore, mg_ignore, {ms_tmode, 4}, {ms_tmode, 4}, mg_ignore, mg_ignore} | |
57 | }; | |
58 | struct Message bmask_msgtab = { | |
59 | "BMASK", 0, 0, 0, MFLG_SLOW, | |
60 | {mg_ignore, mg_ignore, mg_ignore, {ms_bmask, 5}, mg_ignore, mg_ignore} | |
61 | }; | |
62 | ||
63 | mapi_clist_av1 mode_clist[] = { &mode_msgtab, &tmode_msgtab, &bmask_msgtab, NULL }; | |
64 | ||
65 | DECLARE_MODULE_AV1(mode, NULL, NULL, mode_clist, NULL, NULL, "$Revision: 1006 $"); | |
66 | ||
67 | /* | |
68 | * m_mode - MODE command handler | |
212380e3 AC |
69 | * parv[1] - channel |
70 | */ | |
71 | static int | |
72 | m_mode(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
73 | { | |
74 | struct Channel *chptr = NULL; | |
75 | struct membership *msptr; | |
76 | int n = 2; | |
77 | const char *dest; | |
78 | int operspy = 0; | |
79 | ||
80 | dest = parv[1]; | |
81 | ||
82 | if(IsOperSpy(source_p) && *dest == '!') | |
83 | { | |
84 | dest++; | |
85 | operspy = 1; | |
86 | ||
87 | if(EmptyString(dest)) | |
88 | { | |
89 | sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS), | |
90 | me.name, source_p->name, "MODE"); | |
91 | return 0; | |
92 | } | |
93 | } | |
94 | ||
95 | /* Now, try to find the channel in question */ | |
96 | if(!IsChanPrefix(*dest)) | |
97 | { | |
98 | /* if here, it has to be a non-channel name */ | |
99 | user_mode(client_p, source_p, parc, parv); | |
100 | return 0; | |
101 | } | |
102 | ||
103 | if(!check_channel_name(dest)) | |
104 | { | |
105 | sendto_one_numeric(source_p, ERR_BADCHANNAME, form_str(ERR_BADCHANNAME), parv[1]); | |
106 | return 0; | |
107 | } | |
108 | ||
109 | chptr = find_channel(dest); | |
110 | ||
111 | if(chptr == NULL) | |
112 | { | |
113 | sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, | |
114 | form_str(ERR_NOSUCHCHANNEL), parv[1]); | |
115 | return 0; | |
116 | } | |
117 | ||
118 | /* Now know the channel exists */ | |
119 | if(parc < n + 1) | |
120 | { | |
121 | if(operspy) | |
122 | report_operspy(source_p, "MODE", chptr->chname); | |
123 | ||
124 | sendto_one(source_p, form_str(RPL_CHANNELMODEIS), | |
125 | me.name, source_p->name, parv[1], | |
126 | operspy ? channel_modes(chptr, &me) : channel_modes(chptr, source_p)); | |
127 | ||
128 | sendto_one(source_p, form_str(RPL_CREATIONTIME), | |
129 | me.name, source_p->name, parv[1], chptr->channelts); | |
130 | } | |
131 | else | |
132 | { | |
133 | msptr = find_channel_membership(chptr, source_p); | |
134 | ||
212380e3 AC |
135 | /* Finish the flood grace period... */ |
136 | if(MyClient(source_p) && !IsFloodDone(source_p)) | |
137 | { | |
138 | if(!((parc == 3) && (parv[2][0] == 'b') && (parv[2][1] == '\0'))) | |
139 | flood_endgrace(source_p); | |
140 | } | |
141 | ||
142 | set_channel_mode(client_p, source_p, chptr, msptr, parc - n, parv + n); | |
143 | } | |
144 | ||
145 | return 0; | |
146 | } | |
147 | ||
148 | static int | |
149 | ms_mode(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
150 | { | |
151 | struct Channel *chptr; | |
152 | ||
153 | chptr = find_channel(parv[1]); | |
154 | ||
155 | if(chptr == NULL) | |
156 | { | |
157 | sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, | |
158 | form_str(ERR_NOSUCHCHANNEL), parv[1]); | |
159 | return 0; | |
160 | } | |
161 | ||
162 | set_channel_mode(client_p, source_p, chptr, NULL, parc - 2, parv + 2); | |
163 | ||
164 | return 0; | |
165 | } | |
166 | ||
167 | static int | |
168 | ms_tmode(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
169 | { | |
170 | struct Channel *chptr = NULL; | |
171 | struct membership *msptr; | |
172 | ||
173 | /* Now, try to find the channel in question */ | |
174 | if(!IsChanPrefix(parv[2][0]) || !check_channel_name(parv[2])) | |
175 | { | |
176 | sendto_one_numeric(source_p, ERR_BADCHANNAME, form_str(ERR_BADCHANNAME), parv[2]); | |
177 | return 0; | |
178 | } | |
179 | ||
180 | chptr = find_channel(parv[2]); | |
181 | ||
182 | if(chptr == NULL) | |
183 | { | |
184 | sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, | |
185 | form_str(ERR_NOSUCHCHANNEL), parv[2]); | |
186 | return 0; | |
187 | } | |
188 | ||
189 | /* TS is higher, drop it. */ | |
190 | if(atol(parv[1]) > chptr->channelts) | |
191 | return 0; | |
192 | ||
193 | if(IsServer(source_p)) | |
194 | { | |
195 | set_channel_mode(client_p, source_p, chptr, NULL, parc - 3, parv + 3); | |
196 | } | |
197 | else | |
198 | { | |
199 | msptr = find_channel_membership(chptr, source_p); | |
200 | ||
212380e3 AC |
201 | set_channel_mode(client_p, source_p, chptr, msptr, parc - 3, parv + 3); |
202 | } | |
203 | ||
204 | return 0; | |
205 | } | |
206 | ||
207 | static int | |
208 | ms_bmask(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
209 | { | |
210 | static char modebuf[BUFSIZE]; | |
211 | static char parabuf[BUFSIZE]; | |
212 | struct Channel *chptr; | |
5b96d9a6 | 213 | rb_dlink_list *banlist; |
212380e3 AC |
214 | const char *s; |
215 | char *t; | |
216 | char *mbuf; | |
217 | char *pbuf; | |
218 | long mode_type; | |
219 | int mlen; | |
220 | int plen = 0; | |
221 | int tlen; | |
222 | int arglen; | |
223 | int modecount = 0; | |
224 | int needcap = NOCAPS; | |
225 | int mems; | |
226 | struct Client *fakesource_p; | |
227 | ||
228 | if(!IsChanPrefix(parv[2][0]) || !check_channel_name(parv[2])) | |
229 | return 0; | |
230 | ||
231 | if((chptr = find_channel(parv[2])) == NULL) | |
232 | return 0; | |
233 | ||
234 | /* TS is higher, drop it. */ | |
235 | if(atol(parv[1]) > chptr->channelts) | |
236 | return 0; | |
237 | ||
238 | switch (parv[3][0]) | |
239 | { | |
240 | case 'b': | |
241 | banlist = &chptr->banlist; | |
242 | mode_type = CHFL_BAN; | |
243 | mems = ALL_MEMBERS; | |
244 | break; | |
245 | ||
246 | case 'e': | |
247 | banlist = &chptr->exceptlist; | |
248 | mode_type = CHFL_EXCEPTION; | |
249 | needcap = CAP_EX; | |
250 | mems = ONLY_CHANOPS; | |
251 | break; | |
252 | ||
253 | case 'I': | |
254 | banlist = &chptr->invexlist; | |
255 | mode_type = CHFL_INVEX; | |
256 | needcap = CAP_IE; | |
257 | mems = ONLY_CHANOPS; | |
258 | break; | |
259 | ||
260 | case 'q': | |
261 | banlist = &chptr->quietlist; | |
262 | mode_type = CHFL_QUIET; | |
263 | mems = ALL_MEMBERS; | |
264 | break; | |
265 | ||
266 | /* maybe we should just blindly propagate this? */ | |
267 | default: | |
268 | return 0; | |
269 | } | |
270 | ||
271 | parabuf[0] = '\0'; | |
272 | s = LOCAL_COPY(parv[4]); | |
273 | ||
274 | /* Hide connecting server on netburst -- jilles */ | |
275 | if (ConfigServerHide.flatten_links && !HasSentEob(source_p)) | |
276 | fakesource_p = &me; | |
277 | else | |
278 | fakesource_p = source_p; | |
7cdb0a09 | 279 | mlen = rb_sprintf(modebuf, ":%s MODE %s +", fakesource_p->name, chptr->chname); |
212380e3 AC |
280 | mbuf = modebuf + mlen; |
281 | pbuf = parabuf; | |
282 | ||
283 | while(*s == ' ') | |
284 | s++; | |
285 | ||
286 | /* next char isnt a space, point t to the next one */ | |
287 | if((t = strchr(s, ' ')) != NULL) | |
288 | { | |
289 | *t++ = '\0'; | |
290 | ||
291 | /* double spaces will break the parser */ | |
292 | while(*t == ' ') | |
293 | t++; | |
294 | } | |
295 | ||
296 | /* couldve skipped spaces and got nothing.. */ | |
297 | while(!EmptyString(s)) | |
298 | { | |
299 | /* ban with a leading ':' -- this will break the protocol */ | |
300 | if(*s == ':') | |
301 | goto nextban; | |
302 | ||
303 | tlen = strlen(s); | |
304 | ||
305 | /* I dont even want to begin parsing this.. */ | |
306 | if(tlen > MODEBUFLEN) | |
307 | break; | |
308 | ||
309 | if(add_id(fakesource_p, chptr, s, banlist, mode_type)) | |
310 | { | |
311 | /* this new one wont fit.. */ | |
312 | if(mlen + MAXMODEPARAMS + plen + tlen > BUFSIZE - 5 || | |
313 | modecount >= MAXMODEPARAMS) | |
314 | { | |
315 | *mbuf = '\0'; | |
316 | *(pbuf - 1) = '\0'; | |
317 | sendto_channel_local(mems, chptr, "%s %s", modebuf, parabuf); | |
318 | sendto_server(client_p, chptr, needcap, CAP_TS6, | |
319 | "%s %s", modebuf, parabuf); | |
320 | ||
321 | mbuf = modebuf + mlen; | |
322 | pbuf = parabuf; | |
323 | plen = modecount = 0; | |
324 | } | |
325 | ||
326 | *mbuf++ = parv[3][0]; | |
7cdb0a09 | 327 | arglen = rb_sprintf(pbuf, "%s ", s); |
212380e3 AC |
328 | pbuf += arglen; |
329 | plen += arglen; | |
330 | modecount++; | |
331 | } | |
332 | ||
333 | nextban: | |
334 | s = t; | |
335 | ||
336 | if(s != NULL) | |
337 | { | |
338 | if((t = strchr(s, ' ')) != NULL) | |
339 | { | |
340 | *t++ = '\0'; | |
341 | ||
342 | while(*t == ' ') | |
343 | t++; | |
344 | } | |
345 | } | |
346 | } | |
347 | ||
348 | if(modecount) | |
349 | { | |
350 | *mbuf = '\0'; | |
351 | *(pbuf - 1) = '\0'; | |
352 | sendto_channel_local(mems, chptr, "%s %s", modebuf, parabuf); | |
353 | sendto_server(client_p, chptr, needcap, CAP_TS6, "%s %s", modebuf, parabuf); | |
354 | } | |
355 | ||
356 | sendto_server(client_p, chptr, CAP_TS6 | needcap, NOCAPS, ":%s BMASK %ld %s %s :%s", | |
357 | source_p->id, (long) chptr->channelts, chptr->chname, parv[3], parv[4]); | |
358 | return 0; | |
359 | } | |
360 |