mirror of
https://github.com/unrealircd/unrealircd.git
synced 2026-07-09 14:03:12 +02:00
Bram Matthys
352 lines
8.9 KiB
C
352 lines
8.9 KiB
C
/*
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* Unreal Internet Relay Chat Daemon, src/modules/whois.c
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* (C) 2000-2001 Carsten V. Munk and the UnrealIRCd Team
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* Moved to modules by Fish (Justin Hammond)
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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 1, or (at your option)
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* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "unrealircd.h"
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static char buf[BUFSIZE];
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CMD_FUNC(cmd_whois);
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#define MSG_WHOIS "WHOIS"
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ModuleHeader MOD_HEADER
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= {
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"whois", /* Name of module */
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"5.0", /* Version */
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"command /whois", /* Short description of module */
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"UnrealIRCd Team",
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"unrealircd-5",
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};
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/* This is called on module init, before Server Ready */
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MOD_INIT()
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{
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CommandAdd(modinfo->handle, MSG_WHOIS, cmd_whois, MAXPARA, M_USER);
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MARK_AS_OFFICIAL_MODULE(modinfo);
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return MOD_SUCCESS;
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}
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/* Is first run when server is 100% ready */
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MOD_LOAD()
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{
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return MOD_SUCCESS;
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}
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/* Called when module is unloaded */
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MOD_UNLOAD()
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{
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return MOD_SUCCESS;
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}
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/*
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** cmd_whois
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** parv[1] = nickname masklist
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*/
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CMD_FUNC(cmd_whois)
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{
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Membership *lp;
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Client *acptr;
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Channel *chptr;
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char *nick, *tmp, *name;
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char *p = NULL;
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int found, len, mlen;
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char querybuf[BUFSIZE];
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int ntargets = 0;
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int maxtargets = max_targets_for_command("WHOIS");
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if (parc < 2)
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{
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sendnumeric(sptr, ERR_NONICKNAMEGIVEN);
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return 0;
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}
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if (parc > 2)
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{
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if (hunt_server(cptr, sptr, recv_mtags, ":%s WHOIS %s :%s", 1, parc, parv) != HUNTED_ISME)
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return 0;
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parv[1] = parv[2];
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}
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strlcpy(querybuf, parv[1], sizeof(querybuf));
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for (tmp = canonize(parv[1]); (nick = strtoken(&p, tmp, ",")); tmp = NULL)
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{
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unsigned char showchannel, wilds, hideoper; /* <- these are all boolean-alike */
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if (MyUser(sptr) && (++ntargets > maxtargets))
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{
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sendnumeric(sptr, ERR_TOOMANYTARGETS, nick, maxtargets, "WHOIS");
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break;
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}
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found = 0;
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/* We do not support "WHOIS *" */
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wilds = (strchr(nick, '?') || strchr(nick, '*'));
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if (wilds)
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continue;
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if ((acptr = find_client(nick, NULL)))
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{
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if (IsServer(acptr))
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continue;
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/*
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* I'm always last :-) and acptr->next == NULL!!
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*/
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if (IsMe(acptr))
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break;
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/*
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* 'Rules' established for sending a WHOIS reply:
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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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if (!IsUser(acptr))
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continue;
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name = (!*acptr->name) ? "?" : acptr->name;
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hideoper = 0;
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if (IsHideOper(acptr) && (acptr != sptr) && !IsOper(sptr))
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hideoper = 1;
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sendnumeric(sptr, RPL_WHOISUSER, name,
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acptr->user->username,
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IsHidden(acptr) ? acptr->user->virthost : acptr->user->realhost,
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acptr->info);
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if (IsOper(sptr) || acptr == sptr)
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{
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char sno[128];
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strlcpy(sno, get_sno_str(acptr), sizeof(sno));
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/* send the target user's modes */
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sendnumeric(sptr, RPL_WHOISMODES, name,
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get_mode_str(acptr), sno[1] == 0 ? "" : sno);
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}
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if ((acptr == sptr) || IsOper(sptr))
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{
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sendnumeric(sptr, RPL_WHOISHOST, acptr->name,
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(MyConnect(acptr) && strcmp(acptr->ident, "unknown")) ? acptr->ident : "*",
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acptr->user->realhost, acptr->ip ? acptr->ip : "");
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}
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if (IsARegNick(acptr))
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sendnumeric(sptr, RPL_WHOISREGNICK, name);
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found = 1;
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mlen = strlen(me.name) + strlen(sptr->name) + 10 + strlen(name);
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for (len = 0, *buf = '\0', lp = acptr->user->channel; lp; lp = lp->next)
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{
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Hook *h;
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int ret = EX_ALLOW;
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int operoverride = 0;
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chptr = lp->chptr;
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showchannel = 0;
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if (ShowChannel(sptr, chptr))
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showchannel = 1;
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for (h = Hooks[HOOKTYPE_SEE_CHANNEL_IN_WHOIS]; h; h = h->next)
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{
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int n = (*(h->func.intfunc))(sptr, acptr, chptr);
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/* Hook return values:
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* EX_ALLOW means 'yes is ok, as far as modules are concerned'
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* EX_DENY means 'hide this channel, unless oper overriding'
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* EX_ALWAYS_DENY means 'hide this channel, always'
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* ... with the exception that we always show the channel if you /WHOIS yourself
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*/
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if (n == EX_DENY)
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{
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ret = EX_DENY;
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}
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else if (n == EX_ALWAYS_DENY)
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{
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ret = EX_ALWAYS_DENY;
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break;
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}
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}
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if (ret == EX_DENY)
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showchannel = 0;
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if (!showchannel && (ValidatePermissionsForPath("channel:see:whois",sptr,NULL,chptr,NULL)))
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{
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showchannel = 1; /* OperOverride */
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operoverride = 1;
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}
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if ((ret == EX_ALWAYS_DENY) && (acptr != sptr))
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continue; /* a module asked us to really not expose this channel, so we don't (except target==ourselves). */
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if (acptr == sptr)
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showchannel = 1;
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if (showchannel)
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{
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long access;
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if (len + strlen(chptr->chname) > (size_t)BUFSIZE - 4 - mlen)
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{
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sendto_one(sptr, NULL,
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":%s %d %s %s :%s",
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me.name,
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RPL_WHOISCHANNELS,
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sptr->name, name, buf);
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*buf = '\0';
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len = 0;
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}
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if (operoverride)
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{
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/* '?' and '!' both mean we can see the channel in /WHOIS and normally wouldn't,
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* but there's still a slight difference between the two...
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*/
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if (!PubChannel(chptr))
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{
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/* '?' means it's a secret/private channel (too) */
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*(buf + len++) = '?';
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}
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else
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{
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/* public channel but hidden in WHOIS (umode +p, service bot, etc) */
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*(buf + len++) = '!';
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}
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}
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access = get_access(acptr, chptr);
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if (!MyUser(sptr) || !HasCapability(sptr, "multi-prefix"))
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{
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#ifdef PREFIX_AQ
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if (access & CHFL_CHANOWNER)
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*(buf + len++) = '~';
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else if (access & CHFL_CHANADMIN)
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*(buf + len++) = '&';
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else
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#endif
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if (access & CHFL_CHANOP)
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*(buf + len++) = '@';
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else if (access & CHFL_HALFOP)
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*(buf + len++) = '%';
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else if (access & CHFL_VOICE)
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*(buf + len++) = '+';
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}
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else
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{
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#ifdef PREFIX_AQ
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if (access & CHFL_CHANOWNER)
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*(buf + len++) = '~';
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if (access & CHFL_CHANADMIN)
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*(buf + len++) = '&';
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#endif
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if (access & CHFL_CHANOP)
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*(buf + len++) = '@';
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if (access & CHFL_HALFOP)
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*(buf + len++) = '%';
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if (access & CHFL_VOICE)
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*(buf + len++) = '+';
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}
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if (len)
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*(buf + len) = '\0';
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(void)strcpy(buf + len, chptr->chname);
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len += strlen(chptr->chname);
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(void)strcat(buf + len, " ");
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len++;
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}
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}
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if (buf[0] != '\0')
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sendnumeric(sptr, RPL_WHOISCHANNELS, name, buf);
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if (!(IsULine(acptr) && !IsOper(sptr) && HIDE_ULINES))
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sendnumeric(sptr, RPL_WHOISSERVER, name, acptr->user->server,
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acptr->srvptr ? acptr->srvptr->info : "*Not On This Net*");
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if (acptr->user->away)
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sendnumeric(sptr, RPL_AWAY, name, acptr->user->away);
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if (IsOper(acptr) && !hideoper)
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{
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buf[0] = '\0';
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if (IsOper(acptr))
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strlcat(buf, "an IRC Operator", sizeof buf);
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else
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strlcat(buf, "a Local IRC Operator", sizeof buf);
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if (buf[0])
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{
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if (IsOper(sptr) && MyUser(acptr))
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{
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char *operclass = "???";
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ConfigItem_oper *oper = Find_oper(acptr->user->operlogin);
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if (oper && oper->operclass)
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operclass = oper->operclass;
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sendto_one(sptr, NULL,
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":%s 313 %s %s :is %s (%s) [%s]", me.name,
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sptr->name, name, buf,
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acptr->user->operlogin ? acptr->user->operlogin : "unknown",
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operclass);
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}
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else
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sendnumeric(sptr, RPL_WHOISOPERATOR, name, buf);
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}
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}
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if (acptr->umodes & UMODE_SECURE)
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sendnumeric(sptr, RPL_WHOISSECURE, name,
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"is using a Secure Connection");
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RunHook2(HOOKTYPE_WHOIS, sptr, acptr);
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if (acptr->user->swhois && !hideoper)
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{
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SWhois *s;
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for (s = acptr->user->swhois; s; s = s->next)
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sendto_one(sptr, NULL, ":%s %d %s %s :%s",
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me.name, RPL_WHOISSPECIAL, sptr->name,
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name, s->line);
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}
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/*
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* display services account name if it's actually a services account name and
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* not a legacy timestamp. --nenolod
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*/
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if (!isdigit(*acptr->user->svid))
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sendnumeric(sptr, RPL_WHOISLOGGEDIN, name, acptr->user->svid);
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/*
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* Umode +I hides an oper's idle time from regular users.
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* -Nath.
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*/
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if (MyConnect(acptr) && (IsOper(sptr) || !(acptr->umodes & UMODE_HIDLE)))
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{
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sendnumeric(sptr, RPL_WHOISIDLE, name,
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TStime() - acptr->local->last, acptr->local->firsttime);
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}
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}
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if (!found)
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sendnumeric(sptr, ERR_NOSUCHNICK, nick);
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}
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sendnumeric(sptr, RPL_ENDOFWHOIS, querybuf);
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return 0;
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}
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