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212380e3 AC |
1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * m_whois.c: Shows who a user is. | |
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 | * | |
8a1e143f | 24 | * $Id: m_whois.c 3299 2007-03-28 14:54:10Z jilles $ |
212380e3 AC |
25 | */ |
26 | ||
27 | #include "stdinc.h" | |
28 | #include "tools.h" | |
29 | #include "common.h" | |
30 | #include "client.h" | |
31 | #include "hash.h" | |
32 | #include "channel.h" | |
33 | #include "hash.h" | |
34 | #include "ircd.h" | |
35 | #include "numeric.h" | |
36 | #include "s_conf.h" | |
37 | #include "s_serv.h" | |
38 | #include "send.h" | |
39 | #include "irc_string.h" | |
40 | #include "sprintf_irc.h" | |
41 | #include "s_conf.h" | |
42 | #include "s_log.h" | |
43 | #include "msg.h" | |
44 | #include "parse.h" | |
45 | #include "modules.h" | |
46 | #include "hook.h" | |
47 | #include "s_newconf.h" | |
48 | ||
49 | static void do_whois(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]); | |
50 | static void single_whois(struct Client *source_p, struct Client *target_p, int operspy); | |
51 | ||
52 | static int m_whois(struct Client *, struct Client *, int, const char **); | |
53 | static int ms_whois(struct Client *, struct Client *, int, const char **); | |
54 | ||
55 | struct Message whois_msgtab = { | |
56 | "WHOIS", 0, 0, 0, MFLG_SLOW, | |
57 | {mg_unreg, {m_whois, 2}, {ms_whois, 2}, mg_ignore, mg_ignore, {m_whois, 2}} | |
58 | }; | |
59 | ||
60 | int doing_whois_hook; | |
61 | int doing_whois_global_hook; | |
62 | ||
63 | mapi_clist_av1 whois_clist[] = { &whois_msgtab, NULL }; | |
64 | mapi_hlist_av1 whois_hlist[] = { | |
65 | { "doing_whois", &doing_whois_hook }, | |
66 | { "doing_whois_global", &doing_whois_global_hook }, | |
67 | { NULL, NULL } | |
68 | }; | |
69 | ||
8a1e143f | 70 | DECLARE_MODULE_AV1(whois, NULL, NULL, whois_clist, whois_hlist, NULL, "$Revision: 3299 $"); |
212380e3 AC |
71 | |
72 | /* | |
73 | * m_whois | |
74 | * parv[0] = sender prefix | |
75 | * parv[1] = nickname masklist | |
76 | */ | |
77 | static int | |
78 | m_whois(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
79 | { | |
80 | static time_t last_used = 0; | |
81 | ||
82 | if(parc > 2) | |
83 | { | |
84 | if(EmptyString(parv[2])) | |
85 | { | |
86 | sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN), | |
87 | me.name, source_p->name); | |
88 | return 0; | |
89 | } | |
90 | ||
91 | if(!IsOper(source_p)) | |
92 | { | |
93 | /* seeing as this is going across servers, we should limit it */ | |
94 | if((last_used + ConfigFileEntry.pace_wait_simple) > CurrentTime) | |
95 | { | |
96 | sendto_one(source_p, form_str(RPL_LOAD2HI), | |
97 | me.name, source_p->name, "WHOIS"); | |
98 | sendto_one_numeric(source_p, RPL_ENDOFWHOIS, | |
99 | form_str(RPL_ENDOFWHOIS), parv[1]); | |
100 | return 0; | |
101 | } | |
102 | else | |
103 | last_used = CurrentTime; | |
104 | } | |
105 | ||
106 | if(hunt_server(client_p, source_p, ":%s WHOIS %s :%s", 1, parc, parv) != | |
107 | HUNTED_ISME) | |
108 | return 0; | |
109 | ||
110 | parv[1] = parv[2]; | |
111 | ||
112 | } | |
113 | do_whois(client_p, source_p, parc, parv); | |
114 | ||
115 | return 0; | |
116 | } | |
117 | ||
118 | /* | |
119 | * ms_whois | |
120 | * parv[0] = sender prefix | |
121 | * parv[1] = server to reply | |
122 | * parv[2] = nickname to whois | |
123 | */ | |
124 | static int | |
125 | ms_whois(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
126 | { | |
127 | struct Client *target_p; | |
128 | ||
129 | /* note: early versions of ratbox allowed users to issue a remote | |
130 | * whois with a blank parv[2], so we cannot treat it as a protocol | |
131 | * violation. --anfl | |
132 | */ | |
133 | if(parc < 3 || EmptyString(parv[2])) | |
134 | { | |
135 | sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN), | |
136 | me.name, source_p->name); | |
137 | return 0; | |
138 | } | |
139 | ||
140 | /* check if parv[1] exists */ | |
141 | if((target_p = find_client(parv[1])) == NULL) | |
142 | { | |
143 | sendto_one_numeric(source_p, ERR_NOSUCHSERVER, | |
144 | form_str(ERR_NOSUCHSERVER), | |
145 | IsDigit(parv[1][0]) ? "*" : parv[1]); | |
146 | return 0; | |
147 | } | |
148 | ||
149 | /* if parv[1] isnt my client, or me, someone else is supposed | |
150 | * to be handling the request.. so send it to them | |
151 | */ | |
152 | if(!MyClient(target_p) && !IsMe(target_p)) | |
153 | { | |
154 | sendto_one(target_p, ":%s WHOIS %s :%s", | |
155 | get_id(source_p, target_p), | |
156 | get_id(target_p, target_p), parv[2]); | |
157 | return 0; | |
158 | } | |
159 | ||
160 | /* ok, the target is either us, or a client on our server, so perform the whois | |
161 | * but first, parv[1] == server to perform the whois on, parv[2] == person | |
162 | * to whois, so make parv[1] = parv[2] so do_whois is ok -- fl_ | |
163 | */ | |
164 | parv[1] = parv[2]; | |
165 | do_whois(client_p, source_p, parc, parv); | |
166 | ||
167 | return 0; | |
168 | } | |
169 | ||
170 | /* do_whois | |
171 | * | |
172 | * inputs - pointer to | |
173 | * output - | |
174 | * side effects - | |
175 | */ | |
176 | static void | |
177 | do_whois(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
178 | { | |
179 | struct Client *target_p; | |
180 | char *nick; | |
181 | char *p = NULL; | |
182 | int operspy = 0; | |
183 | ||
184 | nick = LOCAL_COPY(parv[1]); | |
185 | if((p = strchr(nick, ','))) | |
186 | *p = '\0'; | |
187 | ||
188 | if(IsOperSpy(source_p) && *nick == '!') | |
189 | { | |
190 | operspy = 1; | |
191 | nick++; | |
192 | } | |
193 | ||
194 | target_p = find_named_person(nick); | |
195 | ||
196 | if(target_p != NULL) | |
197 | { | |
198 | if(operspy) | |
199 | { | |
200 | char buffer[BUFSIZE]; | |
201 | ||
202 | snprintf(buffer, sizeof(buffer), "%s!%s@%s %s", | |
203 | target_p->name, target_p->username, | |
204 | target_p->host, target_p->user->server); | |
205 | report_operspy(source_p, "WHOIS", buffer); | |
206 | } | |
207 | ||
208 | single_whois(source_p, target_p, operspy); | |
209 | } | |
210 | else | |
211 | sendto_one_numeric(source_p, ERR_NOSUCHNICK, | |
212 | form_str(ERR_NOSUCHNICK), | |
8a1e143f | 213 | nick); |
212380e3 AC |
214 | |
215 | sendto_one_numeric(source_p, RPL_ENDOFWHOIS, | |
216 | form_str(RPL_ENDOFWHOIS), parv[1]); | |
217 | return; | |
218 | } | |
219 | ||
220 | /* | |
221 | * single_whois() | |
222 | * | |
223 | * Inputs - source_p client to report to | |
224 | * - target_p client to report on | |
225 | * Output - if found return 1 | |
226 | * Side Effects - do a single whois on given client | |
227 | * writing results to source_p | |
228 | */ | |
229 | static void | |
230 | single_whois(struct Client *source_p, struct Client *target_p, int operspy) | |
231 | { | |
232 | char buf[BUFSIZE]; | |
233 | dlink_node *ptr; | |
234 | struct Client *a2client_p; | |
235 | struct membership *msptr; | |
236 | struct Channel *chptr; | |
237 | int cur_len = 0; | |
238 | int mlen; | |
239 | char *t; | |
240 | int tlen; | |
241 | hook_data_client hdata; | |
242 | char *name; | |
243 | char quest[] = "?"; | |
244 | int visible; | |
245 | int extra_space = 0; | |
246 | ||
247 | if(target_p->name[0] == '\0') | |
248 | name = quest; | |
249 | else | |
250 | name = target_p->name; | |
251 | ||
252 | if(target_p->user == NULL) | |
253 | { | |
254 | s_assert(0); | |
255 | return; | |
256 | } | |
257 | ||
258 | a2client_p = target_p->servptr; | |
259 | ||
260 | sendto_one_numeric(source_p, RPL_WHOISUSER, form_str(RPL_WHOISUSER), | |
261 | target_p->name, target_p->username, | |
262 | target_p->host, target_p->info); | |
263 | ||
264 | cur_len = mlen = ircsprintf(buf, form_str(RPL_WHOISCHANNELS), | |
265 | get_id(&me, source_p), get_id(source_p, source_p), | |
266 | target_p->name); | |
267 | ||
268 | /* Make sure it won't overflow when sending it to the client | |
269 | * in full names; note that serverhiding may require more space | |
270 | * for a different server name (not done here) -- jilles | |
271 | */ | |
272 | if (!MyConnect(source_p)) | |
273 | { | |
274 | extra_space = strlen(source_p->name) - 9; | |
275 | if (extra_space < 0) | |
276 | extra_space = 0; | |
277 | extra_space += strlen(me.name) - 2; /* make sure >= 0 */ | |
278 | cur_len += extra_space; | |
279 | } | |
280 | ||
281 | t = buf + mlen; | |
282 | ||
04513cff | 283 | if (!IsService(target_p)) |
212380e3 | 284 | { |
04513cff JT |
285 | DLINK_FOREACH(ptr, target_p->user->channel.head) |
286 | { | |
287 | msptr = ptr->data; | |
288 | chptr = msptr->chptr; | |
212380e3 | 289 | |
04513cff | 290 | visible = ShowChannel(source_p, chptr); |
212380e3 | 291 | |
04513cff | 292 | if(visible || operspy) |
212380e3 | 293 | { |
04513cff JT |
294 | if((cur_len + strlen(chptr->chname) + 3) > (BUFSIZE - 5)) |
295 | { | |
296 | sendto_one(source_p, "%s", buf); | |
297 | cur_len = mlen + extra_space; | |
298 | t = buf + mlen; | |
299 | } | |
300 | ||
301 | tlen = ircsprintf(t, "%s%s%s ", | |
302 | visible ? "" : "!", | |
303 | find_channel_status(msptr, 1), | |
304 | chptr->chname); | |
305 | t += tlen; | |
306 | cur_len += tlen; | |
212380e3 | 307 | } |
212380e3 AC |
308 | } |
309 | } | |
310 | ||
311 | if(cur_len > mlen + extra_space) | |
312 | sendto_one(source_p, "%s", buf); | |
313 | ||
314 | sendto_one_numeric(source_p, RPL_WHOISSERVER, form_str(RPL_WHOISSERVER), | |
315 | target_p->name, target_p->user->server, | |
316 | a2client_p ? a2client_p->info : "*Not On This Net*"); | |
317 | ||
318 | if(target_p->user->away) | |
319 | sendto_one_numeric(source_p, RPL_AWAY, form_str(RPL_AWAY), | |
320 | target_p->name, target_p->user->away); | |
321 | ||
322 | if(IsOper(target_p)) | |
323 | { | |
324 | sendto_one_numeric(source_p, RPL_WHOISOPERATOR, form_str(RPL_WHOISOPERATOR), | |
325 | target_p->name, | |
326 | IsService(target_p) ? ConfigFileEntry.servicestring : | |
327 | (IsAdmin(target_p) ? GlobalSetOptions.adminstring : | |
328 | GlobalSetOptions.operstring)); | |
329 | } | |
330 | ||
331 | if(MyClient(target_p)) | |
332 | { | |
333 | if (IsDynSpoof(target_p) && (IsOper(source_p) || source_p == target_p)) | |
334 | { | |
335 | /* trick here: show a nonoper their own IP if | |
336 | * dynamic spoofed but not if auth{} spoofed | |
337 | * -- jilles */ | |
338 | ClearDynSpoof(target_p); | |
339 | sendto_one_numeric(source_p, RPL_WHOISHOST, | |
340 | form_str(RPL_WHOISHOST), | |
341 | target_p->name, target_p->orighost, | |
342 | show_ip(source_p, target_p) ? target_p->sockhost : "255.255.255.255"); | |
343 | SetDynSpoof(target_p); | |
344 | } | |
345 | else if(ConfigFileEntry.use_whois_actually && show_ip(source_p, target_p)) | |
346 | sendto_one_numeric(source_p, RPL_WHOISACTUALLY, | |
347 | form_str(RPL_WHOISACTUALLY), | |
348 | target_p->name, target_p->sockhost); | |
349 | ||
350 | sendto_one_numeric(source_p, RPL_WHOISIDLE, form_str(RPL_WHOISIDLE), | |
351 | target_p->name, | |
352 | CurrentTime - target_p->localClient->last, | |
353 | target_p->localClient->firsttime); | |
354 | } | |
355 | else | |
356 | { | |
357 | if (IsDynSpoof(target_p) && (IsOper(source_p) || source_p == target_p)) | |
358 | { | |
359 | ClearDynSpoof(target_p); | |
360 | sendto_one_numeric(source_p, RPL_WHOISHOST, | |
361 | form_str(RPL_WHOISHOST), | |
362 | target_p->name, target_p->orighost, | |
363 | show_ip(source_p, target_p) && !EmptyString(target_p->sockhost) && strcmp(target_p->sockhost, "0")? target_p->sockhost : "255.255.255.255"); | |
364 | SetDynSpoof(target_p); | |
365 | } | |
366 | else if(ConfigFileEntry.use_whois_actually && show_ip(source_p, target_p) && | |
367 | !EmptyString(target_p->sockhost) && strcmp(target_p->sockhost, "0")) | |
368 | { | |
369 | sendto_one_numeric(source_p, RPL_WHOISACTUALLY, | |
370 | form_str(RPL_WHOISACTUALLY), | |
371 | target_p->name, target_p->sockhost); | |
372 | ||
373 | } | |
374 | ||
375 | } | |
376 | ||
377 | hdata.client = source_p; | |
378 | hdata.target = target_p; | |
379 | ||
380 | /* doing_whois_hook must only be called for local clients, | |
381 | * doing_whois_global_hook must only be called for local targets | |
382 | */ | |
383 | /* it is important that these are called *before* RPL_ENDOFWHOIS is | |
384 | * sent, services compatibility code depends on it. --anfl | |
385 | */ | |
386 | if(MyClient(source_p)) | |
387 | call_hook(doing_whois_hook, &hdata); | |
388 | else | |
389 | call_hook(doing_whois_global_hook, &hdata); | |
390 | ||
391 | return; | |
392 | } | |
393 |