| 1 |
/* |
| 2 |
* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
| 3 |
* m_whois.c: Shows who a user is. |
| 4 |
* |
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* Copyright (C) 2005 by the past and present ircd coders, and others. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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* |
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* $Id$ |
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*/ |
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|
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#include "stdinc.h" |
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#include "common.h" |
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#include "handlers.h" |
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#include "client.h" |
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#include "hash.h" |
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#include "channel.h" |
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#include "channel_mode.h" |
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#include "ircd.h" |
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#include "numeric.h" |
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#include "s_conf.h" |
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#include "s_serv.h" |
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#include "send.h" |
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#include "msg.h" |
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#include "parse.h" |
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#include "modules.h" |
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|
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static void do_whois(struct Client *, int, char **); |
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static int single_whois(struct Client *, struct Client *); |
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static void whois_person(struct Client *, struct Client *); |
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static int global_whois(struct Client *, const char *); |
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|
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static void m_whois(struct Client *, struct Client *, int, char *[]); |
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static void mo_whois(struct Client *, struct Client *, int, char *[]); |
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|
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struct Message whois_msgtab = { |
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"WHOIS", 0, 0, 0, 0, MFLG_SLOW, 0, |
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{ m_unregistered, m_whois, mo_whois, m_ignore, mo_whois, m_ignore } |
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}; |
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|
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#ifndef STATIC_MODULES |
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const char *_version = "$Revision$"; |
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static struct Callback *whois_cb; |
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|
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static void * |
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va_whois(va_list args) |
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{ |
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struct Client *source_p = va_arg(args, struct Client *); |
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int parc = va_arg(args, int); |
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char **parv = va_arg(args, char **); |
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|
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do_whois(source_p, parc, parv); |
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return NULL; |
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} |
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|
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void |
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_modinit(void) |
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{ |
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whois_cb = register_callback("doing_whois", va_whois); |
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mod_add_cmd(&whois_msgtab); |
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} |
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|
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void |
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_moddeinit(void) |
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{ |
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mod_del_cmd(&whois_msgtab); |
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uninstall_hook(whois_cb, va_whois); |
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} |
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#endif |
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|
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/* |
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** m_whois |
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** parv[0] = sender prefix |
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** parv[1] = nickname masklist |
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*/ |
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static void |
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m_whois(struct Client *client_p, struct Client *source_p, |
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int parc, char *parv[]) |
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{ |
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static time_t last_used = 0; |
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|
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if (parc < 2 || EmptyString(parv[1])) |
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{ |
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sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN), |
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me.name, source_p->name); |
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return; |
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} |
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|
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if (parc > 2 && !EmptyString(parv[2])) |
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{ |
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/* seeing as this is going across servers, we should limit it */ |
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if ((last_used + ConfigFileEntry.pace_wait_simple) > CurrentTime) |
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{ |
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sendto_one(source_p, form_str(RPL_LOAD2HI), |
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me.name, source_p->name); |
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return; |
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} |
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else |
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last_used = CurrentTime; |
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|
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/* if we have serverhide enabled, they can either ask the clients |
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* server, or our server.. I dont see why they would need to ask |
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* anything else for info about the client.. --fl_ |
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*/ |
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if (ConfigFileEntry.disable_remote) |
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parv[1] = parv[2]; |
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|
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if (hunt_server(client_p, source_p, ":%s WHOIS %s :%s", 1, |
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parc, parv) != HUNTED_ISME) |
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return; |
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|
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parv[1] = parv[2]; |
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} |
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|
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#ifdef STATIC_MODULES |
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do_whois(source_p, parc, parv); |
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#else |
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execute_callback(whois_cb, source_p, parc, parv); |
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#endif |
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} |
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|
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/* |
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** mo_whois |
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** parv[0] = sender prefix |
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** parv[1] = nickname masklist |
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*/ |
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static void |
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mo_whois(struct Client *client_p, struct Client *source_p, |
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int parc, char *parv[]) |
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{ |
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if (parc < 2 || EmptyString(parv[1])) |
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{ |
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sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN), |
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me.name, source_p->name); |
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return; |
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} |
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|
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if (parc > 2 && !EmptyString(parv[2])) |
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{ |
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if (hunt_server(client_p, source_p, ":%s WHOIS %s :%s", 1, |
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parc, parv) != HUNTED_ISME) |
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return; |
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|
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parv[1] = parv[2]; |
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} |
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|
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#ifdef STATIC_MODULES |
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do_whois(source_p, parc, parv); |
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#else |
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execute_callback(whois_cb, source_p, parc, parv); |
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#endif |
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} |
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|
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/* do_whois() |
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* |
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* inputs - pointer to /whois source |
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* - number of parameters |
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* - pointer to parameters array |
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* output - pointer to void |
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* side effects - Does whois |
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*/ |
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static void |
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do_whois(struct Client *source_p, int parc, char **parv) |
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{ |
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static time_t last_used = 0; |
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struct Client *target_p; |
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char *nick; |
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char *p = NULL; |
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int found = 0; |
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|
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nick = parv[1]; |
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while (*nick == ',') |
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nick++; |
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if ((p = strchr(nick, ',')) != NULL) |
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*p = '\0'; |
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|
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if (*nick == '\0') |
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return; |
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|
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collapse(nick); |
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|
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if (strpbrk(nick, "?#*") == NULL) |
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{ |
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if ((target_p = find_client(nick)) != NULL) |
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{ |
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if (IsServer(source_p->from)) |
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client_burst_if_needed(source_p->from, target_p); |
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|
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if (IsClient(target_p)) |
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{ |
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whois_person(source_p, target_p); |
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found = 1; |
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} |
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} |
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else if (!ServerInfo.hub && uplink && IsCapable(uplink, CAP_LL)) |
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{ |
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if (parc > 2) |
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sendto_one(uplink,":%s WHOIS %s :%s", |
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source_p->name, nick, nick); |
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else |
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sendto_one(uplink,":%s WHOIS %s", |
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source_p->name, nick); |
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return; |
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} |
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} |
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else /* wilds is true */ |
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{ |
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/* disallow wild card whois on lazylink leafs for now */ |
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if (!ServerInfo.hub && uplink && IsCapable(uplink, CAP_LL)) |
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return; |
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|
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if (!IsOper(source_p)) |
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{ |
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if ((last_used + ConfigFileEntry.pace_wait) > CurrentTime) |
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{ |
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sendto_one(source_p, form_str(RPL_LOAD2HI), |
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me.name, source_p->name); |
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return; |
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} |
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else |
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last_used = CurrentTime; |
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} |
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|
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/* Oh-oh wilds is true so have to do it the hard expensive way */ |
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if (MyClient(source_p)) |
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found = global_whois(source_p, nick); |
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} |
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|
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if (!found) |
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{ |
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if (!IsDigit(*nick)) |
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sendto_one(source_p, form_str(ERR_NOSUCHNICK), |
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me.name, source_p->name, nick); |
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} |
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|
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sendto_one(source_p, form_str(RPL_ENDOFWHOIS), |
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me.name, source_p->name, parv[1]); |
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} |
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|
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/* global_whois() |
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* |
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* Inputs - source_p client to report to |
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* - target_p client to report on |
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* Output - if found return 1 |
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* Side Effects - do a single whois on given client |
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* writing results to source_p |
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*/ |
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static int |
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global_whois(struct Client *source_p, const char *nick) |
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{ |
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dlink_node *ptr = NULL; |
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struct Client *target_p = NULL; |
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int found = 0; |
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|
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DLINK_FOREACH(ptr, global_client_list.head) |
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{ |
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target_p = ptr->data; |
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|
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if (!IsClient(target_p)) |
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continue; |
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|
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if (!match(nick, target_p->name)) |
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continue; |
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|
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assert(target_p->servptr != NULL); |
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|
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/* 'Rules' established for sending a WHOIS reply: |
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* |
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* |
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* - if wildcards are being used dont send a reply if |
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* the querier isnt any common channels and the |
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* client in question is invisible and wildcards are |
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* in use (allow exact matches only); |
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* |
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* - only send replies about common or public channels |
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* the target user(s) are on; |
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*/ |
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|
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found |= single_whois(source_p, target_p); |
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} |
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|
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return found; |
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} |
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|
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/* single_whois() |
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* |
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* Inputs - source_p client to report to |
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* - target_p client to report on |
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* Output - if found return 1 |
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* Side Effects - do a single whois on given client |
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* writing results to source_p |
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*/ |
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static int |
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single_whois(struct Client *source_p, struct Client *target_p) |
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{ |
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dlink_node *ptr = NULL; |
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struct Channel *chptr = NULL; |
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|
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if (!IsInvisible(target_p) || target_p == source_p) |
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{ |
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/* always show user if they are visible (no +i) */ |
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whois_person(source_p, target_p); |
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return 1; |
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} |
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|
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/* target_p is +i. Check if it is on any common channels with source_p */ |
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DLINK_FOREACH(ptr, target_p->channel.head) |
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{ |
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chptr = ((struct Membership *) ptr->data)->chptr; |
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if (IsMember(source_p, chptr)) |
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{ |
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whois_person(source_p, target_p); |
| 326 |
return 1; |
| 327 |
} |
| 328 |
} |
| 329 |
|
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return 0; |
| 331 |
} |
| 332 |
|
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/* whois_person() |
| 334 |
* |
| 335 |
* inputs - source_p client to report to |
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* - target_p client to report on |
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* output - NONE |
| 338 |
* side effects - |
| 339 |
*/ |
| 340 |
static void |
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whois_person(struct Client *source_p, struct Client *target_p) |
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{ |
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char buf[IRCD_BUFSIZE]; |
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dlink_node *lp; |
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struct Client *server_p; |
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struct Channel *chptr; |
| 347 |
struct Membership *ms; |
| 348 |
int cur_len = 0; |
| 349 |
int mlen; |
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char *t = NULL; |
| 351 |
int tlen; |
| 352 |
int reply_to_send = NO; |
| 353 |
|
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server_p = target_p->servptr; |
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|
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sendto_one(source_p, form_str(RPL_WHOISUSER), |
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me.name, source_p->name, target_p->name, |
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target_p->username, target_p->host, target_p->info); |
| 359 |
|
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cur_len = mlen = ircsprintf(buf, form_str(RPL_WHOISCHANNELS), |
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me.name, source_p->name, target_p->name, ""); |
| 362 |
t = buf + mlen; |
| 363 |
|
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DLINK_FOREACH(lp, target_p->channel.head) |
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{ |
| 366 |
ms = lp->data; |
| 367 |
chptr = ms->chptr; |
| 368 |
|
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if (ShowChannel(source_p, chptr)) |
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{ |
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/* Don't show local channels if user is doing a remote whois */ |
| 372 |
if (!MyConnect(source_p) && (chptr->chname[0] == '&')) |
| 373 |
continue; |
| 374 |
|
| 375 |
if ((cur_len + 3 + strlen(chptr->chname) + 1) > (IRCD_BUFSIZE - 2)) |
| 376 |
{ |
| 377 |
*(t - 1) = '\0'; |
| 378 |
sendto_one(source_p, "%s", buf); |
| 379 |
cur_len = mlen; |
| 380 |
t = buf + mlen; |
| 381 |
} |
| 382 |
|
| 383 |
tlen = ircsprintf(t, "%s%s ", get_member_status(ms, YES), chptr->chname); |
| 384 |
t += tlen; |
| 385 |
cur_len += tlen; |
| 386 |
reply_to_send = YES; |
| 387 |
} |
| 388 |
} |
| 389 |
|
| 390 |
if (reply_to_send) |
| 391 |
{ |
| 392 |
*(t - 1) = '\0'; |
| 393 |
sendto_one(source_p, "%s", buf); |
| 394 |
} |
| 395 |
|
| 396 |
if (IsOper(source_p) || !ConfigServerHide.hide_servers || target_p == source_p) |
| 397 |
sendto_one(source_p, form_str(RPL_WHOISSERVER), |
| 398 |
me.name, source_p->name, target_p->name, |
| 399 |
server_p->name, server_p->info); |
| 400 |
else |
| 401 |
sendto_one(source_p, form_str(RPL_WHOISSERVER), |
| 402 |
me.name, source_p->name, target_p->name, |
| 403 |
ConfigServerHide.hidden_name, |
| 404 |
ServerInfo.network_desc); |
| 405 |
|
| 406 |
if (target_p->away != NULL) |
| 407 |
sendto_one(source_p, form_str(RPL_AWAY), |
| 408 |
me.name, source_p->name, target_p->name, |
| 409 |
target_p->away); |
| 410 |
|
| 411 |
if (IsOper(target_p)) |
| 412 |
sendto_one(source_p, form_str((IsAdmin(target_p) && |
| 413 |
!IsOperHiddenAdmin(target_p)) ? RPL_WHOISADMIN : |
| 414 |
RPL_WHOISOPERATOR), me.name, source_p->name, target_p->name); |
| 415 |
|
| 416 |
if (IsOper(source_p) && IsCaptured(target_p)) |
| 417 |
sendto_one(source_p, form_str(RPL_ISCAPTURED), |
| 418 |
me.name, source_p->name, target_p->name); |
| 419 |
|
| 420 |
if (ConfigFileEntry.use_whois_actually) |
| 421 |
{ |
| 422 |
int show_ip = 0; |
| 423 |
|
| 424 |
if ((target_p->sockhost[0] != '\0') && (target_p->sockhost[0] == '0' && |
| 425 |
target_p->sockhost[1] == '\0')) |
| 426 |
{ |
| 427 |
if ((IsAdmin(source_p) || source_p == target_p)) |
| 428 |
show_ip = 1; |
| 429 |
else if (IsIPSpoof(target_p)) |
| 430 |
show_ip = (IsOper(source_p) && !ConfigFileEntry.hide_spoof_ips); |
| 431 |
else |
| 432 |
show_ip = 1; |
| 433 |
|
| 434 |
sendto_one(source_p, form_str(RPL_WHOISACTUALLY), |
| 435 |
me.name, source_p->name, target_p->name, |
| 436 |
show_ip ? target_p->sockhost : "255.255.255.255"); |
| 437 |
} |
| 438 |
} |
| 439 |
|
| 440 |
if (MyConnect(target_p)) /* Can't do any of this if not local! db */ |
| 441 |
{ |
| 442 |
#ifdef HAVE_LIBCRYPTO |
| 443 |
if (target_p->localClient->fd.ssl) |
| 444 |
sendto_one(source_p, form_str(RPL_WHOISSSL), |
| 445 |
me.name, source_p->name, target_p->name); |
| 446 |
#endif |
| 447 |
sendto_one(source_p, form_str(RPL_WHOISIDLE), |
| 448 |
me.name, source_p->name, target_p->name, |
| 449 |
CurrentTime - target_p->localClient->last, |
| 450 |
target_p->firsttime); |
| 451 |
} |
| 452 |
} |
