| 1 |
/* |
| 2 |
* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
| 3 |
* m_whois.c: Shows who a user is. |
| 4 |
* |
| 5 |
* Copyright (C) 2005 by the past and present ircd coders, and others. |
| 6 |
* |
| 7 |
* This program is free software; you can redistribute it and/or modify |
| 8 |
* it under the terms of the GNU General Public License as published by |
| 9 |
* the Free Software Foundation; either version 2 of the License, or |
| 10 |
* (at your option) any later version. |
| 11 |
* |
| 12 |
* This program is distributed in the hope that it will be useful, |
| 13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 |
* GNU General Public License for more details. |
| 16 |
* |
| 17 |
* You should have received a copy of the GNU General Public License |
| 18 |
* along with this program; if not, write to the Free Software |
| 19 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| 20 |
* USA |
| 21 |
* |
| 22 |
* $Id$ |
| 23 |
*/ |
| 24 |
|
| 25 |
#include "stdinc.h" |
| 26 |
#include "common.h" |
| 27 |
#include "handlers.h" |
| 28 |
#include "client.h" |
| 29 |
#include "hash.h" |
| 30 |
#include "channel.h" |
| 31 |
#include "channel_mode.h" |
| 32 |
#include "ircd.h" |
| 33 |
#include "numeric.h" |
| 34 |
#include "s_conf.h" |
| 35 |
#include "s_serv.h" |
| 36 |
#include "send.h" |
| 37 |
#include "msg.h" |
| 38 |
#include "parse.h" |
| 39 |
#include "conf/modules.h" |
| 40 |
|
| 41 |
static void *do_whois(va_list); |
| 42 |
static int single_whois(struct Client *, struct Client *); |
| 43 |
static void whois_person(struct Client *, struct Client *); |
| 44 |
static int global_whois(struct Client *, const char *); |
| 45 |
|
| 46 |
static void m_whois(struct Client *, struct Client *, int, char *[]); |
| 47 |
static void mo_whois(struct Client *, struct Client *, int, char *[]); |
| 48 |
|
| 49 |
struct Message whois_msgtab = { |
| 50 |
"WHOIS", 0, 0, 0, 0, MFLG_SLOW, 0, |
| 51 |
{ m_unregistered, m_whois, mo_whois, m_ignore, mo_whois, m_ignore } |
| 52 |
}; |
| 53 |
|
| 54 |
static struct Callback *whois_cb; |
| 55 |
|
| 56 |
INIT_MODULE(m_whois, "$Revision$") |
| 57 |
{ |
| 58 |
whois_cb = register_callback("doing_whois", do_whois); |
| 59 |
mod_add_cmd(&whois_msgtab); |
| 60 |
} |
| 61 |
|
| 62 |
CLEANUP_MODULE |
| 63 |
{ |
| 64 |
mod_del_cmd(&whois_msgtab); |
| 65 |
uninstall_hook(whois_cb, do_whois); |
| 66 |
} |
| 67 |
|
| 68 |
/* |
| 69 |
** m_whois |
| 70 |
** parv[0] = sender prefix |
| 71 |
** parv[1] = nickname masklist |
| 72 |
*/ |
| 73 |
static void |
| 74 |
m_whois(struct Client *client_p, struct Client *source_p, |
| 75 |
int parc, char *parv[]) |
| 76 |
{ |
| 77 |
static time_t last_used = 0; |
| 78 |
|
| 79 |
if (parv[1] != NULL) |
| 80 |
{ |
| 81 |
parv[1] = stripws(parv[1]); |
| 82 |
if (parv[2] != NULL) |
| 83 |
parv[2] = stripws(parv[2]); |
| 84 |
} |
| 85 |
|
| 86 |
if (parc < 2 || EmptyString(parv[1])) |
| 87 |
{ |
| 88 |
sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN), |
| 89 |
me.name, source_p->name); |
| 90 |
return; |
| 91 |
} |
| 92 |
|
| 93 |
if (parc > 2 && !EmptyString(parv[2])) |
| 94 |
{ |
| 95 |
/* seeing as this is going across servers, we should limit it */ |
| 96 |
if ((last_used + ConfigFileEntry.pace_wait_simple) > CurrentTime) |
| 97 |
{ |
| 98 |
sendto_one(source_p, form_str(RPL_LOAD2HI), |
| 99 |
me.name, source_p->name); |
| 100 |
return; |
| 101 |
} |
| 102 |
|
| 103 |
last_used = CurrentTime; |
| 104 |
|
| 105 |
/* if we have serverhide enabled, they can either ask the clients |
| 106 |
* server, or our server.. I dont see why they would need to ask |
| 107 |
* anything else for info about the client.. --fl_ |
| 108 |
*/ |
| 109 |
if (ConfigFileEntry.disable_remote) |
| 110 |
parv[1] = parv[2]; |
| 111 |
|
| 112 |
if (hunt_server(client_p, source_p, ":%s WHOIS %s :%s", 1, |
| 113 |
parc, parv) != HUNTED_ISME) |
| 114 |
return; |
| 115 |
|
| 116 |
parv[1] = parv[2]; |
| 117 |
} |
| 118 |
|
| 119 |
execute_callback(whois_cb, source_p, parc, parv); |
| 120 |
} |
| 121 |
|
| 122 |
/* |
| 123 |
** mo_whois |
| 124 |
** parv[0] = sender prefix |
| 125 |
** parv[1] = nickname masklist |
| 126 |
*/ |
| 127 |
static void |
| 128 |
mo_whois(struct Client *client_p, struct Client *source_p, |
| 129 |
int parc, char *parv[]) |
| 130 |
{ |
| 131 |
if (parv[1] != NULL) |
| 132 |
{ |
| 133 |
parv[1] = stripws(parv[1]); |
| 134 |
if (parv[2] != NULL) |
| 135 |
parv[2] = stripws(parv[2]); |
| 136 |
} |
| 137 |
|
| 138 |
if (parc < 2 || EmptyString(parv[1])) |
| 139 |
{ |
| 140 |
sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN), |
| 141 |
me.name, source_p->name); |
| 142 |
return; |
| 143 |
} |
| 144 |
|
| 145 |
if (parc > 2 && !EmptyString(parv[2])) |
| 146 |
{ |
| 147 |
if (hunt_server(client_p, source_p, ":%s WHOIS %s :%s", 1, |
| 148 |
parc, parv) != HUNTED_ISME) |
| 149 |
return; |
| 150 |
|
| 151 |
parv[1] = parv[2]; |
| 152 |
} |
| 153 |
|
| 154 |
execute_callback(whois_cb, source_p, parc, parv); |
| 155 |
} |
| 156 |
|
| 157 |
/* do_whois() |
| 158 |
* |
| 159 |
* inputs - pointer to /whois source |
| 160 |
* - number of parameters |
| 161 |
* - pointer to parameters array |
| 162 |
* output - pointer to void |
| 163 |
* side effects - Does whois |
| 164 |
*/ |
| 165 |
static void * |
| 166 |
do_whois(va_list args) |
| 167 |
{ |
| 168 |
struct Client *source_p = va_arg(args, struct Client *); |
| 169 |
char **parv; |
| 170 |
static time_t last_used = 0; |
| 171 |
struct Client *target_p; |
| 172 |
char *nick; |
| 173 |
char *p = NULL; |
| 174 |
int found = 0; |
| 175 |
|
| 176 |
va_arg(args, int); |
| 177 |
parv = va_arg(args, char **); |
| 178 |
|
| 179 |
nick = parv[1]; |
| 180 |
while (*nick == ',') |
| 181 |
nick++; |
| 182 |
if ((p = strchr(nick, ',')) != NULL) |
| 183 |
*p = '\0'; |
| 184 |
|
| 185 |
if (*nick == '\0') |
| 186 |
return NULL; |
| 187 |
|
| 188 |
collapse(nick); |
| 189 |
|
| 190 |
if (!has_wildcards(nick)) |
| 191 |
{ |
| 192 |
if ((target_p = find_client(nick)) && IsClient(target_p)) |
| 193 |
{ |
| 194 |
whois_person(source_p, target_p); |
| 195 |
found = 1; |
| 196 |
} |
| 197 |
} |
| 198 |
else /* wilds is true */ |
| 199 |
{ |
| 200 |
if (!IsOper(source_p)) |
| 201 |
{ |
| 202 |
if ((last_used + ConfigFileEntry.pace_wait) > CurrentTime) |
| 203 |
{ |
| 204 |
sendto_one(source_p, form_str(RPL_LOAD2HI), |
| 205 |
me.name, source_p->name); |
| 206 |
return NULL; |
| 207 |
} |
| 208 |
|
| 209 |
last_used = CurrentTime; |
| 210 |
} |
| 211 |
|
| 212 |
/* Oh-oh wilds is true so have to do it the hard expensive way */ |
| 213 |
if (MyClient(source_p)) |
| 214 |
found = global_whois(source_p, nick); |
| 215 |
} |
| 216 |
|
| 217 |
if (!found) |
| 218 |
{ |
| 219 |
if (!IsDigit(*nick)) |
| 220 |
sendto_one(source_p, form_str(ERR_NOSUCHNICK), |
| 221 |
me.name, source_p->name, nick); |
| 222 |
} |
| 223 |
|
| 224 |
sendto_one(source_p, form_str(RPL_ENDOFWHOIS), |
| 225 |
me.name, source_p->name, parv[1]); |
| 226 |
return NULL; |
| 227 |
} |
| 228 |
|
| 229 |
/* global_whois() |
| 230 |
* |
| 231 |
* Inputs - source_p client to report to |
| 232 |
* - target_p client to report on |
| 233 |
* Output - if found return 1 |
| 234 |
* Side Effects - do a single whois on given client |
| 235 |
* writing results to source_p |
| 236 |
*/ |
| 237 |
static int |
| 238 |
global_whois(struct Client *source_p, const char *nick) |
| 239 |
{ |
| 240 |
dlink_node *ptr = NULL; |
| 241 |
struct Client *target_p = NULL; |
| 242 |
int found = 0; |
| 243 |
|
| 244 |
DLINK_FOREACH(ptr, global_client_list.head) |
| 245 |
{ |
| 246 |
target_p = ptr->data; |
| 247 |
|
| 248 |
if (!IsClient(target_p)) |
| 249 |
continue; |
| 250 |
|
| 251 |
if (!match(nick, target_p->name)) |
| 252 |
continue; |
| 253 |
|
| 254 |
assert(target_p->servptr != NULL); |
| 255 |
|
| 256 |
/* 'Rules' established for sending a WHOIS reply: |
| 257 |
* |
| 258 |
* |
| 259 |
* - if wildcards are being used dont send a reply if |
| 260 |
* the querier isnt any common channels and the |
| 261 |
* client in question is invisible and wildcards are |
| 262 |
* in use (allow exact matches only); |
| 263 |
* |
| 264 |
* - only send replies about common or public channels |
| 265 |
* the target user(s) are on; |
| 266 |
*/ |
| 267 |
|
| 268 |
found |= single_whois(source_p, target_p); |
| 269 |
} |
| 270 |
|
| 271 |
return found; |
| 272 |
} |
| 273 |
|
| 274 |
/* single_whois() |
| 275 |
* |
| 276 |
* Inputs - source_p client to report to |
| 277 |
* - target_p client to report on |
| 278 |
* Output - if found return 1 |
| 279 |
* Side Effects - do a single whois on given client |
| 280 |
* writing results to source_p |
| 281 |
*/ |
| 282 |
static int |
| 283 |
single_whois(struct Client *source_p, struct Client *target_p) |
| 284 |
{ |
| 285 |
dlink_node *ptr = NULL; |
| 286 |
struct Channel *chptr = NULL; |
| 287 |
|
| 288 |
if (!IsInvisible(target_p) || target_p == source_p) |
| 289 |
{ |
| 290 |
/* always show user if they are visible (no +i) */ |
| 291 |
whois_person(source_p, target_p); |
| 292 |
return 1; |
| 293 |
} |
| 294 |
|
| 295 |
/* target_p is +i. Check if it is on any common channels with source_p */ |
| 296 |
DLINK_FOREACH(ptr, target_p->channel.head) |
| 297 |
{ |
| 298 |
chptr = ((struct Membership *) ptr->data)->chptr; |
| 299 |
if (IsMember(source_p, chptr)) |
| 300 |
{ |
| 301 |
whois_person(source_p, target_p); |
| 302 |
return 1; |
| 303 |
} |
| 304 |
} |
| 305 |
|
| 306 |
return 0; |
| 307 |
} |
| 308 |
|
| 309 |
/* whois_person() |
| 310 |
* |
| 311 |
* inputs - source_p client to report to |
| 312 |
* - target_p client to report on |
| 313 |
* output - NONE |
| 314 |
* side effects - |
| 315 |
*/ |
| 316 |
static void |
| 317 |
whois_person(struct Client *source_p, struct Client *target_p) |
| 318 |
{ |
| 319 |
char buf[IRCD_BUFSIZE]; |
| 320 |
dlink_node *lp; |
| 321 |
struct Client *server_p; |
| 322 |
struct Channel *chptr; |
| 323 |
struct Membership *ms; |
| 324 |
int cur_len = 0; |
| 325 |
int mlen; |
| 326 |
char *t = NULL; |
| 327 |
int tlen; |
| 328 |
int reply_to_send = NO; |
| 329 |
|
| 330 |
server_p = target_p->servptr; |
| 331 |
|
| 332 |
sendto_one(source_p, form_str(RPL_WHOISUSER), |
| 333 |
me.name, source_p->name, target_p->name, |
| 334 |
target_p->username, target_p->host, target_p->info); |
| 335 |
|
| 336 |
cur_len = mlen = ircsprintf(buf, form_str(RPL_WHOISCHANNELS), |
| 337 |
me.name, source_p->name, target_p->name, ""); |
| 338 |
t = buf + mlen; |
| 339 |
|
| 340 |
DLINK_FOREACH(lp, target_p->channel.head) |
| 341 |
{ |
| 342 |
ms = lp->data; |
| 343 |
chptr = ms->chptr; |
| 344 |
|
| 345 |
if (ShowChannel(source_p, chptr)) |
| 346 |
{ |
| 347 |
/* Don't show local channels if user is doing a remote whois */ |
| 348 |
if (!MyConnect(source_p) && (chptr->chname[0] == '&')) |
| 349 |
continue; |
| 350 |
|
| 351 |
if ((cur_len + 3 + strlen(chptr->chname) + 1) > (IRCD_BUFSIZE - 2)) |
| 352 |
{ |
| 353 |
*(t - 1) = '\0'; |
| 354 |
sendto_one(source_p, "%s", buf); |
| 355 |
cur_len = mlen; |
| 356 |
t = buf + mlen; |
| 357 |
} |
| 358 |
|
| 359 |
tlen = ircsprintf(t, "%s%s ", get_member_status(ms, YES), chptr->chname); |
| 360 |
t += tlen; |
| 361 |
cur_len += tlen; |
| 362 |
reply_to_send = YES; |
| 363 |
} |
| 364 |
} |
| 365 |
|
| 366 |
if (reply_to_send) |
| 367 |
{ |
| 368 |
*(t - 1) = '\0'; |
| 369 |
sendto_one(source_p, "%s", buf); |
| 370 |
} |
| 371 |
|
| 372 |
if (IsOper(source_p) || !ConfigServerHide.hide_servers || target_p == source_p) |
| 373 |
sendto_one(source_p, form_str(RPL_WHOISSERVER), |
| 374 |
me.name, source_p->name, target_p->name, |
| 375 |
server_p->name, server_p->info); |
| 376 |
else |
| 377 |
sendto_one(source_p, form_str(RPL_WHOISSERVER), |
| 378 |
me.name, source_p->name, target_p->name, |
| 379 |
ConfigServerHide.hidden_name, |
| 380 |
ServerInfo.network_desc); |
| 381 |
|
| 382 |
if (target_p->away != NULL) |
| 383 |
sendto_one(source_p, form_str(RPL_AWAY), |
| 384 |
me.name, source_p->name, target_p->name, |
| 385 |
target_p->away); |
| 386 |
|
| 387 |
if (IsOper(target_p)) |
| 388 |
sendto_one(source_p, form_str((IsAdmin(target_p) && |
| 389 |
!IsOperHiddenAdmin(target_p)) ? RPL_WHOISADMIN : |
| 390 |
RPL_WHOISOPERATOR), me.name, source_p->name, target_p->name); |
| 391 |
|
| 392 |
if (IsOper(source_p) && IsCaptured(target_p)) |
| 393 |
sendto_one(source_p, form_str(RPL_ISCAPTURED), |
| 394 |
me.name, source_p->name, target_p->name); |
| 395 |
|
| 396 |
if (ConfigFileEntry.use_whois_actually) |
| 397 |
{ |
| 398 |
int show_ip = 0; |
| 399 |
|
| 400 |
if (target_p->sockhost[0] && irccmp(target_p->sockhost, "0")) |
| 401 |
{ |
| 402 |
if ((IsAdmin(source_p) || source_p == target_p)) |
| 403 |
show_ip = 1; |
| 404 |
else if (IsIPSpoof(target_p)) |
| 405 |
show_ip = (IsOper(source_p) && !ConfigFileEntry.hide_spoof_ips); |
| 406 |
else |
| 407 |
show_ip = 1; |
| 408 |
|
| 409 |
sendto_one(source_p, form_str(RPL_WHOISACTUALLY), |
| 410 |
me.name, source_p->name, target_p->name, |
| 411 |
show_ip ? target_p->sockhost : "255.255.255.255"); |
| 412 |
} |
| 413 |
} |
| 414 |
|
| 415 |
if (MyConnect(target_p)) /* Can't do any of this if not local! db */ |
| 416 |
{ |
| 417 |
#ifdef HAVE_LIBCRYPTO |
| 418 |
if (target_p->localClient->fd.ssl) |
| 419 |
sendto_one(source_p, form_str(RPL_WHOISSSL), |
| 420 |
me.name, source_p->name, target_p->name); |
| 421 |
#endif |
| 422 |
sendto_one(source_p, form_str(RPL_WHOISIDLE), |
| 423 |
me.name, source_p->name, target_p->name, |
| 424 |
CurrentTime - target_p->localClient->last, |
| 425 |
target_p->firsttime); |
| 426 |
} |
| 427 |
} |
