modules/core/m_kill.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_kill.c: Kills a user.
 *
 *  Copyright (C) 2002 by the past and present ircd coders, and others.
 *
 *  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
 *
 *  $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "client.h"
#include "hash.h"       /* for find_client() */
#include "ircd.h"
#include "numeric.h"
#include "log.h"
#include "s_serv.h"
#include "conf.h"
#include "send.h"
#include "whowas.h"
#include "irc_string.h"
#include "parse.h"
#include "modules.h"


static char buf[IRCD_BUFSIZE];

static void
relay_kill(struct Client *one, struct Client *source_p,
           struct Client *target_p, const char *inpath,
           const char *reason)
{
  dlink_node *ptr = NULL;

  DLINK_FOREACH(ptr, serv_list.head)
  {
    struct Client *client_p = ptr->data;

    if (client_p == one)
      continue;

    if (MyClient(source_p))
      sendto_one(client_p, ":%s KILL %s :%s!%s!%s!%s (%s)",
                 ID_or_name(source_p, client_p),
                 ID_or_name(target_p, client_p),
                 me.name, source_p->host, source_p->username,
                 source_p->name, reason);
    else
      sendto_one(client_p, ":%s KILL %s :%s %s",
                 ID_or_name(source_p, client_p),
                 ID_or_name(target_p, client_p), inpath, reason);
  }
}

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

  user   = parv[1];
  reason = parv[2]; /* Either defined or NULL (parc >= 2!!) */

  if (*user == '\0')
  {
    sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
               me.name, source_p->name, "KILL");
    return;
  }

  if (!EmptyString(reason))
  {
    if (strlen(reason) > (size_t)KILLLEN)
      reason[KILLLEN] = '\0';
  }
  else
    reason = def_reason;

  if ((target_p = hash_find_client(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, 
                                (time_t)ConfigFileEntry.kill_chase_time_limit))
                                == NULL)
    {
      sendto_one(source_p, form_str(ERR_NOSUCHNICK),
                 me.name, source_p->name, user);
      return;
    }

    sendto_one(source_p, ":%s NOTICE %s :KILL changed from %s to %s",
               me.name, source_p->name, user, target_p->name);
  }

  if ((!MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_KILL_REMOTE)) ||
       (MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_KILL)))
  {
    sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
               me.name, source_p->name);
    return;
  }

  if (IsServer(target_p) || IsMe(target_p))
  {
    sendto_one(source_p, form_str(ERR_CANTKILLSERVER),
               me.name, source_p->name);
    return;
  }

  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_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
                       "Received KILL message for %s!%s@%s[%s/%s]. From %s Path: %s (%s)", 
                       target_p->name, target_p->username, target_p->host,
                       target_p->servptr->name,
                       target_p->servptr->id[0] ? target_p->servptr->id : "<>",
                       source_p->name, me.name, reason);

  ilog(LOG_TYPE_KILL, "KILL From %s For %s Path %s (%s)",
       source_p->name, target_p->name, me.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)
       */
    AddFlag(target_p, FLAGS_KILLED);
  }

  snprintf(buf, sizeof(buf), "Killed (%s (%s))", source_p->name, reason);
  exit_client(target_p, source_p, buf);
}

/* ms_kill()
 *  parv[0] = sender prefix
 *  parv[1] = kill victim
 *  parv[2] = kill path and reason
 */
static void
ms_kill(struct Client *client_p, struct Client *source_p,
        int parc, char *parv[])
{
  struct Client *target_p;
  char *user;
  char *reason;
  const char *path;
  char def_reason[] = CONF_NOREASON;

  if (EmptyString(parv[1]))
  {
    sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
               me.name, source_p->name, "KILL");
    return;
  }

  user = parv[1];

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

    /* hyb6 takes the nick of the killer from the path *sigh* --fl_ */
    path = source_p->name;
  }
  else
  {
    reason = strchr(parv[2], ' ');

    if (reason != NULL)
      *reason++ = '\0';
    else
      reason = def_reason;

    path = parv[2];
  }

  if ((target_p = find_person(client_p, 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))   /* Somehow an uid was not found in the hash ! */
      return;
    if ((target_p = get_history(user,
                                (time_t)ConfigFileEntry.kill_chase_time_limit))
       == NULL)
    {
      sendto_one(source_p, form_str(ERR_NOSUCHNICK),
                 me.name, source_p->name, user);
      return;
    }

    sendto_one(source_p,":%s NOTICE %s :KILL changed from %s to %s",
               me.name, source_p->name, user, target_p->name);
  }

  if (IsServer(target_p) || IsMe(target_p))
  {
    sendto_one(source_p, form_str(ERR_CANTKILLSERVER),
               me.name, source_p->name);
    return;
  }

  if (MyConnect(target_p))
  {
    if (IsServer(source_p))
    {
      /* dont send clients kills from a hidden server */
      if ((IsHidden(source_p) || ConfigServerHide.hide_servers) && !HasUMode(target_p, UMODE_OPER))
        sendto_one(target_p, ":%s KILL %s :%s",
                   me.name, target_p->name, reason);
      else
        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 (HasUMode(source_p, UMODE_OPER)) /* send it normally */
    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
                         "Received KILL message for %s!%s@%s[%s/%s]. From %s Path: %s!%s!%s!%s %s",
                         target_p->name, target_p->username, target_p->host,
                         target_p->servptr->name,
                         target_p->servptr->id[0] ? target_p->servptr->id : "<>", source_p->name,
                         source_p->servptr->name, source_p->host, source_p->username,
                         source_p->name, reason);
  else
    sendto_realops_flags(UMODE_SKILL, L_ALL, SEND_NOTICE,
                         "Received KILL message for %s!%s@%s[%s/%s]. From %s %s",
                         target_p->name, target_p->username, target_p->host,
                         target_p->servptr->name,
                         target_p->servptr->id[0] ? target_p->servptr->id : "<>",
                         source_p->name, reason);

  ilog(LOG_TYPE_KILL, "KILL From %s For %s Path %s %s",
       source_p->name, target_p->name, source_p->name, reason);

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

  /* reason comes supplied with its own ()'s */
  if (IsServer(source_p) && (IsHidden(source_p) || ConfigServerHide.hide_servers))
    snprintf(buf, sizeof(buf), "Killed (%s %s)", me.name, reason);
  else
    snprintf(buf, sizeof(buf), "Killed (%s %s)", source_p->name, reason);

  exit_client(target_p, source_p, buf);
}


static struct Message kill_msgtab = {
  "KILL", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
  {m_unregistered, m_not_oper, ms_kill, m_ignore, mo_kill, m_ignore}
};

static void
module_init(void)
{
  mod_add_cmd(&kill_msgtab);
}

static void
module_exit(void)
{
  mod_del_cmd(&kill_msgtab);
}

struct module module_entry = {
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = MODULE_FLAG_CORE
};
Revision:	2036
Committed:	Tue May 14 19:07:45 2013 UTC (13 years, 5 months ago) by michael
Content type:	text/x-csrc
File size:	9963 byte(s)
Log Message:	- Improve KILL server notice to be more specific about the client being killed (ircnet style)
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* m_kill.c: Kills a user.
4			*
5			* Copyright (C) 2002 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	knight	31	* $Id$
23	adx	30	*/
24
25			#include "stdinc.h"
26	michael	1011	#include "list.h"
27	adx	30	#include "client.h"
28			#include "hash.h" /* for find_client() */
29			#include "ircd.h"
30			#include "numeric.h"
31	michael	1309	#include "log.h"
32	adx	30	#include "s_serv.h"
33	michael	1309	#include "conf.h"
34	adx	30	#include "send.h"
35			#include "whowas.h"
36			#include "irc_string.h"
37			#include "parse.h"
38			#include "modules.h"
39
40
41			static char buf[IRCD_BUFSIZE];
42
43	michael	1451	static void
44			relay_kill(struct Client one, struct Client source_p,
45			struct Client target_p, const char inpath,
46			const char *reason)
47			{
48			dlink_node *ptr = NULL;
49	adx	30
50	michael	1451	DLINK_FOREACH(ptr, serv_list.head)
51			{
52			struct Client *client_p = ptr->data;
53
54			if (client_p == one)
55			continue;
56
57			if (MyClient(source_p))
58			sendto_one(client_p, ":%s KILL %s :%s!%s!%s!%s (%s)",
59			ID_or_name(source_p, client_p),
60			ID_or_name(target_p, client_p),
61			me.name, source_p->host, source_p->username,
62			source_p->name, reason);
63			else
64			sendto_one(client_p, ":%s KILL %s :%s %s",
65			ID_or_name(source_p, client_p),
66			ID_or_name(target_p, client_p), inpath, reason);
67			}
68			}
69
70	adx	30	/* mo_kill()
71			* parv[0] = sender prefix
72			* parv[1] = kill victim
73			* parv[2] = kill path
74			*/
75			static void
76			mo_kill(struct Client client_p, struct Client source_p,
77			int parc, char *parv[])
78			{
79			struct Client *target_p;
80			const char *inpath = client_p->name;
81			char *user;
82			char *reason;
83	michael	1794	char def_reason[] = CONF_NOREASON;
84	adx	30
85			user = parv[1];
86			reason = parv[2]; /* Either defined or NULL (parc >= 2!!) */
87
88			if (*user == '\0')
89			{
90	michael	1834	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
91	adx	30	me.name, source_p->name, "KILL");
92			return;
93			}
94
95			if (!EmptyString(reason))
96			{
97			if (strlen(reason) > (size_t)KILLLEN)
98			reason[KILLLEN] = '\0';
99			}
100			else
101			reason = def_reason;
102
103	michael	1169	if ((target_p = hash_find_client(user)) == NULL)
104	adx	30	{
105	michael	1136	/*
106			* If the user has recently changed nick, automatically
107	adx	30	* rewrite the KILL for this new nickname--this keeps
108			* servers in synch when nick change and kill collide
109			*/
110			if ((target_p = get_history(user,
111	michael	1451	(time_t)ConfigFileEntry.kill_chase_time_limit))
112			== NULL)
113	adx	30	{
114	michael	1834	sendto_one(source_p, form_str(ERR_NOSUCHNICK),
115	adx	30	me.name, source_p->name, user);
116			return;
117			}
118
119			sendto_one(source_p, ":%s NOTICE %s :KILL changed from %s to %s",
120			me.name, source_p->name, user, target_p->name);
121			}
122
123	michael	2013	if ((!MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_KILL_REMOTE)) \|\|
124			(MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_KILL)))
125	adx	30	{
126	michael	2013	sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
127	adx	30	me.name, source_p->name);
128			return;
129			}
130
131	michael	2013	if (IsServer(target_p) \|\| IsMe(target_p))
132	adx	30	{
133	michael	2013	sendto_one(source_p, form_str(ERR_CANTKILLSERVER),
134			me.name, source_p->name);
135	adx	30	return;
136			}
137
138			if (MyConnect(target_p))
139			sendto_one(target_p, ":%s!%s@%s KILL %s :%s",
140			source_p->name, source_p->username, source_p->host,
141			target_p->name, reason);
142
143	michael	1136	/*
144			* Do not change the format of this message. There's no point in changing messages
145			* that have been around for ever, for no reason..
146			*/
147	michael	1618	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
148	michael	2036	"Received KILL message for %s!%s@%s[%s/%s]. From %s Path: %s (%s)",
149			target_p->name, target_p->username, target_p->host,
150			target_p->servptr->name,
151			target_p->servptr->id[0] ? target_p->servptr->id : "<>",
152			source_p->name, me.name, reason);
153	adx	30
154	michael	1247	ilog(LOG_TYPE_KILL, "KILL From %s For %s Path %s (%s)",
155	adx	30	source_p->name, target_p->name, me.name, reason);
156
157			/*
158	michael	1136	* And pass on the message to other servers. Note, that if KILL
159			* was changed, the message has to be sent to all links, also
160			* back.
161			* Suicide kills are NOT passed on --SRB
162			*/
163	adx	30	if (!MyConnect(target_p))
164			{
165			relay_kill(client_p, source_p, target_p, inpath, reason);
166			/*
167	michael	1136	* Set FLAGS_KILLED. This prevents exit_one_client from sending
168			* the unnecessary QUIT for this. (This flag should never be
169			* set in any other place)
170			*/
171	michael	1219	AddFlag(target_p, FLAGS_KILLED);
172	adx	30	}
173
174	michael	1136	snprintf(buf, sizeof(buf), "Killed (%s (%s))", source_p->name, reason);
175	adx	30	exit_client(target_p, source_p, buf);
176			}
177
178			/* ms_kill()
179			* parv[0] = sender prefix
180			* parv[1] = kill victim
181			* parv[2] = kill path and reason
182			*/
183			static void
184			ms_kill(struct Client client_p, struct Client source_p,
185			int parc, char *parv[])
186			{
187			struct Client *target_p;
188			char *user;
189			char *reason;
190			const char *path;
191	michael	1794	char def_reason[] = CONF_NOREASON;
192	adx	30
193	michael	1136	if (EmptyString(parv[1]))
194	adx	30	{
195	michael	1834	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
196	adx	30	me.name, source_p->name, "KILL");
197			return;
198			}
199
200			user = parv[1];
201
202			if (EmptyString(parv[2]))
203			{
204			reason = def_reason;
205
206			/* hyb6 takes the nick of the killer from the path sigh --fl_ */
207			path = source_p->name;
208			}
209			else
210			{
211			reason = strchr(parv[2], ' ');
212
213			if (reason != NULL)
214			*reason++ = '\0';
215			else
216			reason = def_reason;
217
218			path = parv[2];
219			}
220
221			if ((target_p = find_person(client_p, user)) == NULL)
222			{
223	michael	1451	/*
224			* If the user has recently changed nick, but only if its
225			* not an uid, automatically rewrite the KILL for this new nickname.
226			* --this keeps servers in synch when nick change and kill collide
227			*/
228			if (IsDigit(user)) / Somehow an uid was not found in the hash ! */
229	adx	30	return;
230	michael	1136	if ((target_p = get_history(user,
231	michael	1451	(time_t)ConfigFileEntry.kill_chase_time_limit))
232	adx	30	== NULL)
233			{
234	michael	1834	sendto_one(source_p, form_str(ERR_NOSUCHNICK),
235	michael	1451	me.name, source_p->name, user);
236	adx	30	return;
237			}
238	michael	1136
239	adx	30	sendto_one(source_p,":%s NOTICE %s :KILL changed from %s to %s",
240	michael	1451	me.name, source_p->name, user, target_p->name);
241	adx	30	}
242
243			if (IsServer(target_p) \|\| IsMe(target_p))
244			{
245	michael	1834	sendto_one(source_p, form_str(ERR_CANTKILLSERVER),
246	adx	30	me.name, source_p->name);
247			return;
248			}
249
250			if (MyConnect(target_p))
251			{
252			if (IsServer(source_p))
253			{
254			/* dont send clients kills from a hidden server */
255	michael	1219	if ((IsHidden(source_p) \|\| ConfigServerHide.hide_servers) && !HasUMode(target_p, UMODE_OPER))
256	adx	30	sendto_one(target_p, ":%s KILL %s :%s",
257	michael	1451	me.name, target_p->name, reason);
258	adx	30	else
259	michael	1451	sendto_one(target_p, ":%s KILL %s :%s",
260			source_p->name, target_p->name, reason);
261	adx	30	}
262			else
263			sendto_one(target_p, ":%s!%s@%s KILL %s :%s",
264	michael	1451	source_p->name, source_p->username, source_p->host,
265			target_p->name, reason);
266	adx	30	}
267
268	michael	1451	/*
269			* Be warned, this message must be From %s, or it confuses clients
270			* so dont change it to From: or the case or anything! -- fl -- db
271			*/
272			/*
273			* path must contain at least 2 !'s, or bitchx falsely declares it
274	adx	30	* local --fl
275			*/
276	michael	1219	if (HasUMode(source_p, UMODE_OPER)) /* send it normally */
277	michael	1618	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
278	michael	2036	"Received KILL message for %s!%s@%s[%s/%s]. From %s Path: %s!%s!%s!%s %s",
279			target_p->name, target_p->username, target_p->host,
280			target_p->servptr->name,
281			target_p->servptr->id[0] ? target_p->servptr->id : "<>", source_p->name,
282			source_p->servptr->name, source_p->host, source_p->username,
283			source_p->name, reason);
284	adx	30	else
285	michael	1618	sendto_realops_flags(UMODE_SKILL, L_ALL, SEND_NOTICE,
286	michael	2036	"Received KILL message for %s!%s@%s[%s/%s]. From %s %s",
287			target_p->name, target_p->username, target_p->host,
288			target_p->servptr->name,
289			target_p->servptr->id[0] ? target_p->servptr->id : "<>",
290			source_p->name, reason);
291	adx	30
292	michael	1247	ilog(LOG_TYPE_KILL, "KILL From %s For %s Path %s %s",
293	adx	30	source_p->name, target_p->name, source_p->name, reason);
294
295			relay_kill(client_p, source_p, target_p, path, reason);
296	michael	1219	AddFlag(target_p, FLAGS_KILLED);
297	adx	30
298			/* reason comes supplied with its own ()'s */
299			if (IsServer(source_p) && (IsHidden(source_p) \|\| ConfigServerHide.hide_servers))
300	michael	1136	snprintf(buf, sizeof(buf), "Killed (%s %s)", me.name, reason);
301	adx	30	else
302	michael	1136	snprintf(buf, sizeof(buf), "Killed (%s %s)", source_p->name, reason);
303	adx	30
304			exit_client(target_p, source_p, buf);
305			}
306
307
308	michael	1230	static struct Message kill_msgtab = {
309			"KILL", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
310			{m_unregistered, m_not_oper, ms_kill, m_ignore, mo_kill, m_ignore}
311			};
312
313			static void
314			module_init(void)
315			{
316			mod_add_cmd(&kill_msgtab);
317			}
318
319			static void
320			module_exit(void)
321			{
322			mod_del_cmd(&kill_msgtab);
323			}
324
325			struct module module_entry = {
326			.node = { NULL, NULL, NULL },
327			.name = NULL,
328			.version = "$Revision$",
329			.handle = NULL,
330			.modinit = module_init,
331			.modexit = module_exit,
332			.flags = MODULE_FLAG_CORE
333			};