mirror of
https://github.com/unrealircd/unrealircd.git
synced 2026-06-29 09:16:37 +02:00
Bram Matthys
252 lines
6.9 KiB
C
252 lines
6.9 KiB
C
/*
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* Unreal Internet Relay Chat Daemon, src/modules/m_kill.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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CMD_FUNC(m_kill);
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static char buf[BUFSIZE], buf2[BUFSIZE];
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/* Place includes here */
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#define MSG_KILL "KILL" /* KILL */
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ModuleHeader MOD_HEADER(m_kill)
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= {
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"kill", /* Name of module */
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"4.0", /* Version */
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"command /kill", /* Short description of module */
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"3.2-b8-1",
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NULL
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};
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/* This is called on module init, before Server Ready */
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MOD_INIT(m_kill)
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{
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CommandAdd(modinfo->handle, MSG_KILL, m_kill, 2, M_USER|M_SERVER);
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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(m_kill)
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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(m_kill)
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{
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return MOD_SUCCESS;
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}
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/*
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** m_kill
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** parv[1] = kill victim(s) - comma separated list
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** parv[2] = kill path
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*/
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CMD_FUNC(m_kill)
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{
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aClient *acptr;
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char inpath[HOSTLEN * 2 + USERLEN + 5];
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char *oinpath = get_client_name(cptr, FALSE);
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char *user, *path, *killer, *nick, *p, *s;
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int chasing = 0, kcount = 0;
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Hook *h;
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if (parc < 2 || *parv[1] == '\0')
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{
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sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS),
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me.name, sptr->name, "KILL");
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return 0;
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}
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user = parv[1];
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path = parv[2]; /* Either defined or NULL (parc >= 2!!) */
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strlcpy(inpath, oinpath, sizeof inpath);
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if (IsServer(cptr) && (s = (char *)index(inpath, '.')) != NULL)
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*s = '\0'; /* Truncate at first "." -- hmm... why ? */
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if (!IsServer(cptr) && !ValidatePermissionsForPath("kill:global",sptr,NULL,NULL,NULL) && !ValidatePermissionsForPath("kill:local",sptr,NULL,NULL,NULL))
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{
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sendto_one(sptr, err_str(ERR_NOPRIVILEGES), me.name, sptr->name);
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return 0;
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}
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if (BadPtr(path))
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{
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sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS),
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me.name, sptr->name, "KILL");
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return 0;
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}
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if (strlen(path) > (size_t)TOPICLEN)
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path[TOPICLEN] = '\0';
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if (MyClient(sptr))
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user = (char *)canonize(user);
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for (p = NULL, nick = strtoken(&p, user, ","); nick;
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nick = strtoken(&p, NULL, ","))
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{
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acptr = find_person(nick, NULL);
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/* If a local user issued the /KILL then we will "chase" the user.
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* In other words: we'll check the history for recently changed nicks.
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* We don't do this for remote KILL requests as we have UID for that.
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*/
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if (!acptr && MyClient(sptr))
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{
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acptr = get_history(nick, KILLCHASETIMELIMIT);
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if (acptr)
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sendnotice(sptr, "*** KILL changed from %s to %s", nick, acptr->name);
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}
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if (!acptr)
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{
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sendto_one(sptr, err_str(ERR_NOSUCHNICK), me.name, sptr->name, nick);
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continue;
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}
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if ((!MyConnect(acptr) && MyClient(cptr) && !ValidatePermissionsForPath("kill:global",sptr,acptr,NULL,NULL))
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|| (MyConnect(acptr) && MyClient(cptr)
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&& !ValidatePermissionsForPath("kill:local",sptr,acptr,NULL,NULL)))
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{
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sendto_one(sptr, err_str(ERR_NOPRIVILEGES), me.name, sptr->name);
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continue;
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}
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/* Hooks can plug-in here to reject a kill */
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if (MyClient(sptr))
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{
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int ret = EX_ALLOW;
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for (h = Hooks[HOOKTYPE_PRE_KILL]; h; h = h->next)
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{
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/* note: parameters are: sptr, victim, reason. reason can be NULL !! */
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ret = (*(h->func.intfunc))(sptr, acptr, path);
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if (ret != EX_ALLOW)
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break;
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}
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if ((ret == EX_DENY) || (ret == EX_ALWAYS_DENY))
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continue; /* reject kill for this particular user */
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}
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/* From here on, the kill is probably going to be successful. */
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kcount++;
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if (!IsServer(sptr) && (kcount > MAXKILLS))
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{
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sendnotice(sptr,
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"*** Too many targets, kill list was truncated. Maximum is %d.",
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MAXKILLS);
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break;
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}
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if (!IsServer(cptr))
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{
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/*
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** The kill originates from this server, initialize path.
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** (In which case the 'path' may contain user suplied
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** explanation ...or some nasty comment, sigh... >;-)
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**
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** ...!operhost!oper
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** ...!operhost!oper (comment)
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*/
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strlcpy(inpath, GetHost(cptr), sizeof inpath);
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if (kcount == 1)
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{
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ircsnprintf(buf, sizeof(buf), "%s (%s)", cptr->name, path);
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path = buf;
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}
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}
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/*
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** Notify all *local* opers about the KILL (this includes the one
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** originating the kill, if from this server--the special numeric
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** reply message is not generated anymore).
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**
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** Note: "acptr->name" is used instead of "user" because we may
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** have changed the target because of the nickname change.
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*/
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sendto_snomask_normal(SNO_KILLS,
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"*** Received KILL message for %s!%s@%s from %s Path: %s!%s",
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acptr->name, acptr->user->username,
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IsHidden(acptr) ? acptr->user->virthost : acptr->user->realhost,
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sptr->name, inpath, path);
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ircd_log(LOG_KILL, "KILL (%s) by %s(%s!%s)",
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make_nick_user_host(acptr->name, acptr->user->username, GetHost(acptr)),
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sptr->name, inpath, path);
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/* Victim gets a little notification (s)he is about to die */
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if (MyConnect(acptr))
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{
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sendto_prefix_one(acptr, sptr, ":%s KILL %s :%s!%s",
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sptr->name, acptr->name, inpath, path);
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}
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if (MyConnect(acptr) && MyConnect(sptr))
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{
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/* Local kill. This is handled as if it were a QUIT */
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/* Prepare buffer for exit_client */
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ircsnprintf(buf2, sizeof(buf2), "[%s] Local kill by %s (%s)",
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me.name, sptr->name,
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BadPtr(parv[2]) ? sptr->name : parv[2]);
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}
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else
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{
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/* Kill from one server to another (we may be src, victim or something in-between) */
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/* Broadcast it to other SID and non-SID servers (may be a NOOP, obviously) */
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sendto_server(cptr, PROTO_SID, 0, ":%s KILL %s :%s!%s",
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sptr->name, ID(acptr), inpath, path);
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sendto_server(cptr, 0, PROTO_SID, ":%s KILL %s :%s!%s",
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sptr->name, acptr->name, inpath, path);
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/* Don't send a QUIT for this */
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acptr->flags |= FLAGS_KILLED;
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/* Prepare the buffer for exit_client */
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if ((killer = index(path, ' ')))
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{
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while ((killer >= path) && *killer && *killer != '!')
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killer--;
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if (!*killer)
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killer = path;
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else
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killer++;
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}
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else
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killer = path;
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ircsnprintf(buf2, sizeof(buf2), "Killed (%s)", killer);
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}
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if (MyClient(sptr))
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RunHook3(HOOKTYPE_LOCAL_KILL, sptr, acptr, parv[2]);
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if (exit_client(cptr, acptr, sptr, buf2) == FLUSH_BUFFER)
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return FLUSH_BUFFER; /* (return if we killed ourselves) */
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}
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return 0;
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}
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