[irc/rqf/shadowircd.git] / modules / core / m_kill.c

/*
 *  ircd-ratbox: A slightly useful ircd.
 *  m_kill.c: Kills a user.
 *
 *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
 *  Copyright (C) 1996-2002 Hybrid Development Team
 *  Copyright (C) 2002-2005 ircd-ratbox development team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 *
 *  $Id: m_kill.c 3408 2007-04-14 20:58:56Z jilles $
 */

#include "stdinc.h"
#include "client.h"
#include "hash.h"		/* for find_client() */
#include "ircd.h"
#include "numeric.h"
#include "logger.h"
#include "s_serv.h"
#include "s_conf.h"
#include "send.h"
#include "whowas.h"
#include "match.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "s_newconf.h"

static char buf[BUFSIZE];

static int ms_kill(struct Client *, struct Client *, int, const char **);
static int mo_kill(struct Client *, struct Client *, int, const char **);
static void relay_kill(struct Client *, struct Client *, struct Client *,
		       const char *, const char *);

struct Message kill_msgtab = {
	"KILL", 0, 0, 0, MFLG_SLOW,
	{mg_unreg, mg_not_oper, {ms_kill, 2}, {ms_kill, 2}, mg_ignore, {mo_kill, 2}}
};

mapi_clist_av1 kill_clist[] = { &kill_msgtab, NULL };

DECLARE_MODULE_AV1(kill, NULL, NULL, kill_clist, NULL, NULL, "$Revision: 3408 $");

/*
** mo_kill
**      parv[0] = sender prefix
**      parv[1] = kill victim
**      parv[2] = kill path
*/
static int
mo_kill(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	struct Client *target_p;
	const char *inpath = client_p->name;
	const char *user;
	const char *reason;

	user = parv[1];

	if(!IsOperLocalKill(source_p))
	{
		sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "local_kill");
		return 0;
	}

	if(!EmptyString(parv[2]))
	{
		char *s;
		s = LOCAL_COPY(parv[2]);
		if(strlen(s) > (size_t) KILLLEN)
			s[KILLLEN] = '\0';
		reason = s;
	}
	else
		reason = "<No reason given>";

	if((target_p = find_named_person(user)) == NULL)
	{
		/*
		 ** If the user has recently changed nick, automatically
		 ** rewrite the KILL for this new nickname--this keeps
		 ** servers in synch when nick change and kill collide
		 */
		if((target_p = get_history(user, (long) KILLCHASETIMELIMIT)) == NULL)
		{
			if (strchr(user, '.'))
				sendto_one_numeric(source_p, ERR_CANTKILLSERVER, form_str(ERR_CANTKILLSERVER));
			else
				sendto_one_numeric(source_p, ERR_NOSUCHNICK,
						   form_str(ERR_NOSUCHNICK), user);
			return 0;
		}
		sendto_one_notice(source_p, ":KILL changed from %s to %s", user, target_p->name);
	}

	if(!MyConnect(target_p) && (!IsOperGlobalKill(source_p)))
	{
		sendto_one_notice(source_p, ":Nick %s is not on your server "
				            "and you do not have the global_kill flag",
				target_p->name);
		return 0;
	}

	if(MyConnect(target_p))
		sendto_one(target_p, ":%s!%s@%s KILL %s :%s",
			   source_p->name, source_p->username, source_p->host,
			   target_p->name, reason);

	/* Do not change the format of this message.  There's no point in changing messages
	 * that have been around for ever, for no reason.. */
	sendto_realops_snomask(SNO_GENERAL, L_ALL,
			     "Received KILL message for %s!%s@%s. From %s Path: %s (%s)",
			     target_p->name, target_p->username, target_p->orighost, 
			     parv[0], me.name, reason);

	ilog(L_KILL, "%c %s %s!%s@%s %s %s",
	     MyConnect(target_p) ? 'L' : 'G', get_oper_name(source_p),
	     target_p->name, target_p->username, target_p->host, target_p->servptr->name, reason);

	/*
	 ** And pass on the message to other servers. Note, that if KILL
	 ** was changed, the message has to be sent to all links, also
	 ** back.
	 ** Suicide kills are NOT passed on --SRB
	 */
	if(!MyConnect(target_p))
	{
		relay_kill(client_p, source_p, target_p, inpath, reason);
		/*
		 ** Set FLAGS_KILLED. This prevents exit_one_client from sending
		 ** the unnecessary QUIT for this. (This flag should never be
		 ** set in any other place)
		 */
		target_p->flags |= FLAGS_KILLED;
	}

	rb_sprintf(buf, "Killed (%s (%s))", source_p->name, reason);

	exit_client(client_p, target_p, source_p, buf);

	return 0;
}

/*
 * ms_kill
 *      parv[0] = sender prefix
 *      parv[1] = kill victim
 *      parv[2] = kill path and reason
 */
static int
ms_kill(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	struct Client *target_p;
	const char *user;
	const char *reason;
	char default_reason[] = "<No reason given>";
	const char *path;
	int chasing = 0;

	*buf = '\0';

	user = parv[1];

	if(EmptyString(parv[2]))
	{
		reason = default_reason;

		/* hyb6 takes the nick of the killer from the path *sigh* --fl_ */
		path = source_p->name;
	}
	else
	{
		char *s = LOCAL_COPY(parv[2]), *t;
		t = strchr(s, ' ');

		if(t)
		{
			*t = '\0';
			t++;
			reason = t;
		}
		else
			reason = default_reason;

		path = s;
	}

	if((target_p = find_person(user)) == NULL)
	{
		/*
		 * If the user has recently changed nick, but only if its 
		 * not an uid, automatically rewrite the KILL for this new nickname.
		 * --this keeps servers in synch when nick change and kill collide
		 */
		if(IsDigit(*user) || (!(target_p = get_history(user, (long) KILLCHASETIMELIMIT))))
		{
			sendto_one_numeric(source_p, ERR_NOSUCHNICK,
					   form_str(ERR_NOSUCHNICK), IsDigit(*user) ? "*" : user);
			return 0;
		}
		sendto_one_notice(source_p, ":KILL changed from %s to %s", user, target_p->name);
		chasing = 1;
	}

	if(IsServer(target_p) || IsMe(target_p))
	{
		sendto_one_numeric(source_p, ERR_CANTKILLSERVER, form_str(ERR_CANTKILLSERVER));
		return 0;
	}

	if(MyConnect(target_p))
	{
		if(IsServer(source_p))
		{
			sendto_one(target_p, ":%s KILL %s :%s",
				   source_p->name, target_p->name, reason);
		}
		else
			sendto_one(target_p, ":%s!%s@%s KILL %s :%s",
				   source_p->name, source_p->username, source_p->host,
				   target_p->name, reason);
	}

	/* Be warned, this message must be From %s, or it confuses clients
	 * so dont change it to From: or the case or anything! -- fl -- db */
	/* path must contain at least 2 !'s, or bitchx falsely declares it
	 * local --fl
	 */
	if(IsOper(source_p))	/* send it normally */
	{
		sendto_realops_snomask(IsService(source_p) ? SNO_SKILL : SNO_GENERAL, L_ALL,
				     "Received KILL message for %s!%s@%s. From %s Path: %s!%s!%s!%s %s",
				     target_p->name, target_p->username, target_p->orighost, parv[0], 
				     source_p->servptr->name, source_p->host, source_p->username,
				     source_p->name, reason);

		ilog(L_KILL, "%c %s %s!%s@%s %s %s",
		     MyConnect(target_p) ? 'O' : 'R', get_oper_name(source_p),
		     target_p->name, target_p->username, target_p->host,
		     target_p->servptr->name, reason);
	}
	else
	{
		sendto_realops_snomask(SNO_SKILL, L_ALL,
				     "Received KILL message for %s!%s@%s. From %s %s",
				     target_p->name, target_p->username, target_p->orighost,
				     parv[0], reason);

		ilog(L_KILL, "S %s %s!%s@%s %s %s",
		     source_p->name, target_p->name, target_p->username,
		     target_p->host, target_p->servptr->name, reason);
	}

	relay_kill(client_p, source_p, target_p, path, reason);

	/* FLAGS_KILLED prevents a quit being sent out */
	target_p->flags |= FLAGS_KILLED;

	rb_sprintf(buf, "Killed (%s %s)", source_p->name, reason);

	exit_client(client_p, target_p, source_p, buf);

	return 0;
}

static void
relay_kill(struct Client *one, struct Client *source_p,
	   struct Client *target_p, const char *inpath, const char *reason)
{
	struct Client *client_p;
	rb_dlink_node *ptr;
	char buffer[BUFSIZE];

	if(MyClient(source_p))
		rb_snprintf(buffer, sizeof(buffer),
			    "%s!%s!%s!%s (%s)",
			    me.name, source_p->host, source_p->username, source_p->name, reason);
	else
		rb_snprintf(buffer, sizeof(buffer), "%s %s", inpath, reason);

	RB_DLINK_FOREACH(ptr, serv_list.head)
	{
		client_p = ptr->data;

		if(!client_p || client_p == one)
			continue;

		sendto_one(client_p, ":%s KILL %s :%s",
			   get_id(source_p, client_p), get_id(target_p, client_p), buffer);
	}
}
Commit	Line	Data
212380e3	1	/*
	2	* ircd-ratbox: A slightly useful ircd.
	3	* m_kill.c: Kills a user.
	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	*
d1d0629f	24	* $Id: m_kill.c 3408 2007-04-14 20:58:56Z jilles $
212380e3	25	*/
	26
	27	#include "stdinc.h"
	28	#include "client.h"
	29	#include "hash.h" /* for find_client() */
	30	#include "ircd.h"
	31	#include "numeric.h"
d3455e2c	32	#include "logger.h"
212380e3	33	#include "s_serv.h"
	34	#include "s_conf.h"
	35	#include "send.h"
	36	#include "whowas.h"
13ae2f4b	37	#include "match.h"
212380e3	38	#include "msg.h"
	39	#include "parse.h"
	40	#include "modules.h"
	41	#include "s_newconf.h"
	42
	43	static char buf[BUFSIZE];
	44
	45	static int ms_kill(struct Client , struct Client , int, const char **);
	46	static int mo_kill(struct Client , struct Client , int, const char **);
	47	static void relay_kill(struct Client , struct Client , struct Client *,
	48	const char , const char );
	49
	50	struct Message kill_msgtab = {
	51	"KILL", 0, 0, 0, MFLG_SLOW,
	52	{mg_unreg, mg_not_oper, {ms_kill, 2}, {ms_kill, 2}, mg_ignore, {mo_kill, 2}}
	53	};
	54
	55	mapi_clist_av1 kill_clist[] = { &kill_msgtab, NULL };
	56
d1d0629f	57	DECLARE_MODULE_AV1(kill, NULL, NULL, kill_clist, NULL, NULL, "$Revision: 3408 $");
212380e3	58
	59	/*
	60	** mo_kill
	61	** parv[0] = sender prefix
	62	** parv[1] = kill victim
	63	** parv[2] = kill path
	64	*/
	65	static int
	66	mo_kill(struct Client client_p, struct Client source_p, int parc, const char *parv[])
	67	{
	68	struct Client *target_p;
	69	const char *inpath = client_p->name;
	70	const char *user;
	71	const char *reason;
	72
	73	user = parv[1];
	74
	75	if(!IsOperLocalKill(source_p))
	76	{
	77	sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "local_kill");
	78	return 0;
	79	}
	80
	81	if(!EmptyString(parv[2]))
	82	{
	83	char *s;
	84	s = LOCAL_COPY(parv[2]);
	85	if(strlen(s) > (size_t) KILLLEN)
	86	s[KILLLEN] = '\0';
	87	reason = s;
	88	}
	89	else
	90	reason = "<No reason given>";
	91
	92	if((target_p = find_named_person(user)) == NULL)
	93	{
	94	/*
	95	** If the user has recently changed nick, automatically
	96	** rewrite the KILL for this new nickname--this keeps
	97	** servers in synch when nick change and kill collide
	98	*/
	99	if((target_p = get_history(user, (long) KILLCHASETIMELIMIT)) == NULL)
	100	{
	101	if (strchr(user, '.'))
	102	sendto_one_numeric(source_p, ERR_CANTKILLSERVER, form_str(ERR_CANTKILLSERVER));
	103	else
	104	sendto_one_numeric(source_p, ERR_NOSUCHNICK,
	105	form_str(ERR_NOSUCHNICK), user);
	106	return 0;
	107	}
5366977b	108	sendto_one_notice(source_p, ":KILL changed from %s to %s", user, target_p->name);
212380e3	109	}
	110
	111	if(!MyConnect(target_p) && (!IsOperGlobalKill(source_p)))
	112	{
5366977b	113	sendto_one_notice(source_p, ":Nick %s is not on your server "
	114	"and you do not have the global_kill flag",
	115	target_p->name);
212380e3	116	return 0;
	117	}
	118
	119	if(MyConnect(target_p))
	120	sendto_one(target_p, ":%s!%s@%s KILL %s :%s",
	121	source_p->name, source_p->username, source_p->host,
	122	target_p->name, reason);
	123
	124	/* Do not change the format of this message. There's no point in changing messages
	125	* that have been around for ever, for no reason.. */
	126	sendto_realops_snomask(SNO_GENERAL, L_ALL,
8d090389	127	"Received KILL message for %s!%s@%s. From %s Path: %s (%s)",
d1d0629f	128	target_p->name, target_p->username, target_p->orighost,
5366977b	129	parv[0], me.name, reason);
212380e3	130
	131	ilog(L_KILL, "%c %s %s!%s@%s %s %s",
	132	MyConnect(target_p) ? 'L' : 'G', get_oper_name(source_p),
c88cdb00	133	target_p->name, target_p->username, target_p->host, target_p->servptr->name, reason);
212380e3	134
	135	/*
	136	** And pass on the message to other servers. Note, that if KILL
	137	** was changed, the message has to be sent to all links, also
	138	** back.
	139	** Suicide kills are NOT passed on --SRB
	140	*/
	141	if(!MyConnect(target_p))
	142	{
	143	relay_kill(client_p, source_p, target_p, inpath, reason);
	144	/*
	145	** Set FLAGS_KILLED. This prevents exit_one_client from sending
	146	** the unnecessary QUIT for this. (This flag should never be
	147	** set in any other place)
	148	*/
	149	target_p->flags \|= FLAGS_KILLED;
	150	}
	151
581fa5c4	152	rb_sprintf(buf, "Killed (%s (%s))", source_p->name, reason);
212380e3	153
	154	exit_client(client_p, target_p, source_p, buf);
	155
	156	return 0;
	157	}
	158
	159	/*
	160	* ms_kill
	161	* parv[0] = sender prefix
	162	* parv[1] = kill victim
	163	* parv[2] = kill path and reason
	164	*/
	165	static int
	166	ms_kill(struct Client client_p, struct Client source_p, int parc, const char *parv[])
	167	{
	168	struct Client *target_p;
	169	const char *user;
	170	const char *reason;
	171	char default_reason[] = "<No reason given>";
	172	const char *path;
	173	int chasing = 0;
	174
	175	*buf = '\0';
	176
	177	user = parv[1];
	178
	179	if(EmptyString(parv[2]))
	180	{
	181	reason = default_reason;
	182
	183	/* hyb6 takes the nick of the killer from the path sigh --fl_ */
	184	path = source_p->name;
	185	}
	186	else
	187	{
	188	char s = LOCAL_COPY(parv[2]), t;
	189	t = strchr(s, ' ');
	190
	191	if(t)
	192	{
	193	*t = '\0';
	194	t++;
	195	reason = t;
	196	}
	197	else
	198	reason = default_reason;
	199
	200	path = s;
	201	}
	202
	203	if((target_p = find_person(user)) == NULL)
	204	{
	205	/*
	206	* If the user has recently changed nick, but only if its
	207	* not an uid, automatically rewrite the KILL for this new nickname.
	208	* --this keeps servers in synch when nick change and kill collide
	209	*/
	210	if(IsDigit(*user) \|\| (!(target_p = get_history(user, (long) KILLCHASETIMELIMIT))))
	211	{
	212	sendto_one_numeric(source_p, ERR_NOSUCHNICK,
	213	form_str(ERR_NOSUCHNICK), IsDigit(user) ? "" : user);
	214	return 0;
	215	}
	216	sendto_one_notice(source_p, ":KILL changed from %s to %s", user, target_p->name);
217	chasing = 1;
218	}
219
220	if(IsServer(target_p) \|\| IsMe(target_p))
221	{
222	sendto_one_numeric(source_p, ERR_CANTKILLSERVER, form_str(ERR_CANTKILLSERVER));
223	return 0;
224	}
225
226	if(MyConnect(target_p))
227	{
228	if(IsServer(source_p))
229	{
230	sendto_one(target_p, ":%s KILL %s :%s",
231	source_p->name, target_p->name, reason);
232	}
233	else
234	sendto_one(target_p, ":%s!%s@%s KILL %s :%s",
235	source_p->name, source_p->username, source_p->host,
236	target_p->name, reason);
237	}
238
239	/* Be warned, this message must be From %s, or it confuses clients
240	* so dont change it to From: or the case or anything! -- fl -- db */
241	/* path must contain at least 2 !'s, or bitchx falsely declares it
242	* local --fl
243	*/
244	if(IsOper(source_p)) /* send it normally */
245	{
246	sendto_realops_snomask(IsService(source_p) ? SNO_SKILL : SNO_GENERAL, L_ALL,
8d090389	247	"Received KILL message for %s!%s@%s. From %s Path: %s!%s!%s!%s %s",
d1d0629f	248	target_p->name, target_p->username, target_p->orighost, parv[0],
c88cdb00	249	source_p->servptr->name, source_p->host, source_p->username,
5366977b	250	source_p->name, reason);
212380e3	251
	252	ilog(L_KILL, "%c %s %s!%s@%s %s %s",
	253	MyConnect(target_p) ? 'O' : 'R', get_oper_name(source_p),
	254	target_p->name, target_p->username, target_p->host,
c88cdb00	255	target_p->servptr->name, reason);
212380e3	256	}
	257	else
	258	{
	259	sendto_realops_snomask(SNO_SKILL, L_ALL,
8d090389	260	"Received KILL message for %s!%s@%s. From %s %s",
d1d0629f	261	target_p->name, target_p->username, target_p->orighost,
5366977b	262	parv[0], reason);
212380e3	263
	264	ilog(L_KILL, "S %s %s!%s@%s %s %s",
	265	source_p->name, target_p->name, target_p->username,
c88cdb00	266	target_p->host, target_p->servptr->name, reason);
212380e3	267	}
	268
	269	relay_kill(client_p, source_p, target_p, path, reason);
	270
	271	/* FLAGS_KILLED prevents a quit being sent out */
	272	target_p->flags \|= FLAGS_KILLED;
	273
581fa5c4	274	rb_sprintf(buf, "Killed (%s %s)", source_p->name, reason);
212380e3	275
	276	exit_client(client_p, target_p, source_p, buf);
	277
	278	return 0;
	279	}
	280
	281	static void
	282	relay_kill(struct Client one, struct Client source_p,
	283	struct Client target_p, const char inpath, const char *reason)
	284	{
	285	struct Client *client_p;
08d11e34	286	rb_dlink_node *ptr;
212380e3	287	char buffer[BUFSIZE];
	288
	289	if(MyClient(source_p))
581fa5c4	290	rb_snprintf(buffer, sizeof(buffer),
212380e3	291	"%s!%s!%s!%s (%s)",
	292	me.name, source_p->host, source_p->username, source_p->name, reason);
	293	else
581fa5c4	294	rb_snprintf(buffer, sizeof(buffer), "%s %s", inpath, reason);
212380e3	295
08d11e34	296	RB_DLINK_FOREACH(ptr, serv_list.head)
212380e3	297	{
	298	client_p = ptr->data;
	299
	300	if(!client_p \|\| client_p == one)
	301	continue;
	302
	303	sendto_one(client_p, ":%s KILL %s :%s",
	304	get_id(source_p, client_p), get_id(target_p, client_p), buffer);
	305	}
	306	}