modules/core/m_squit.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2014 ircd-hybrid 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
 *  USA
 */

/*! \file m_squit.c
 * \brief Includes required functions for processing the SQUIT command.
 * \version $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "client.h"
#include "hash.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "conf.h"
#include "log.h"
#include "server.h"
#include "send.h"
#include "parse.h"
#include "modules.h"


/* mo_squit - SQUIT message handler
 *  parv[0] = command
 *  parv[1] = server name
 *  parv[2] = comment
 */
static int
mo_squit(struct Client *source_p, int parc, char *parv[])
{
  char comment[REASONLEN + 1] = "";
  struct Client *target_p = NULL;
  struct Client *p;
  dlink_node *ptr;
  const char *server;

  if (parc < 2 || EmptyString(parv[1]))
  {
    sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "SQUIT");
    return 0;
  }

  server = parv[1];

  /* The following allows wild cards in SQUIT. Only
   * useful when the command is issued by an oper.
   */
  DLINK_FOREACH(ptr, global_server_list.head)
  {
    p = ptr->data;

    if (IsServer(p) || IsMe(p))
    {
      if (!match(server, p->name))
      {
        target_p = p;
        break;
      }
    }
  }

  if ((target_p == NULL) || IsMe(target_p))
  {
    sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, server);
    return 0;
  }

  if (!MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_SQUIT_REMOTE))
  {
    sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "squit:remote");
    return 0;
  }

  if (MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_SQUIT))
  {
    sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "squit");
    return 0;
  }

  if (!EmptyString(parv[2]))
    strlcpy(comment, parv[2], sizeof(comment));
  else
    strlcpy(comment, CONF_NOREASON, sizeof(comment));

  if (MyConnect(target_p))
  {
    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
                         "Received SQUIT %s from %s (%s)",
                         target_p->name, get_client_name(source_p, HIDE_IP), comment);
    ilog(LOG_TYPE_IRCD, "Received SQUIT %s from %s (%s)",
         target_p->name, get_client_name(source_p, HIDE_IP), comment);

    /* To them, we are exiting */
    sendto_one(target_p, ":%s SQUIT %s :%s", source_p->id, me.id, comment);
    /* Send to everything but target */
    sendto_server(target_p, NOCAPS, NOCAPS, ":%s SQUIT %s :%s",
                  source_p->id, target_p->id, comment);
  }
  else
    /* Send to everything */
    sendto_server(NULL, NOCAPS, NOCAPS, ":%s SQUIT %s :%s",
                  source_p->id, target_p->id, comment);

  AddFlag(target_p, FLAGS_SQUIT);

  exit_client(target_p, comment);
  return 0;
}

/** NOTE: I removed wildcard lookups here, because a wildcarded
 **       SQUIT should/can never happen in ms_squit. -Michael
 **/

/* ms_squit - SQUIT message handler
 *  parv[0] = command
 *  parv[1] = server name
 *  parv[2] = comment
 */
static int
ms_squit(struct Client *source_p, int parc, char *parv[])
{
  struct Client *target_p = NULL;
  const char *comment = NULL;
  dlink_node *ptr;

  if (parc < 2 || EmptyString(parv[parc - 1]))
    return 0;

  if ((target_p = hash_find_server(parv[1])) == NULL)
    return 0;

  if (!IsServer(target_p) && !IsMe(target_p))
    return 0;

  if (IsMe(target_p))
    target_p = source_p->from;

  comment = (parc > 2 && parv[parc - 1]) ? parv[parc - 1] : source_p->name;

  if (MyConnect(target_p))
  {
    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_GLOBAL, "from %s: Remote SQUIT %s from %s (%s)",
                         me.name, target_p->name, source_p->name, comment);
    sendto_server(source_p, NOCAPS, NOCAPS,
                  ":%s GLOBOPS :Remote SQUIT %s from %s (%s)",
                  me.id, target_p->name, source_p->name, comment);
    ilog(LOG_TYPE_IRCD, "SQUIT From %s : %s (%s)", source_p->name,
         target_p->name, comment);

    /* To them, we are exiting */
    sendto_one(target_p, ":%s SQUIT %s :%s", source_p->id, me.id, comment);

    /* Send to everything but target and source */
    DLINK_FOREACH(ptr, local_server_list.head)
    {
      struct Client *client_p = ptr->data;

      if (client_p == target_p || client_p == source_p->from)
        continue;

      sendto_one(client_p, ":%s SQUIT %s :%s",
                 source_p->id, target_p->id, comment);
    }
  }
  else
    /* Send to everything but source */
    sendto_server(source_p, NOCAPS, NOCAPS, ":%s SQUIT %s :%s",
                  source_p->id, target_p->id, comment);

  AddFlag(target_p, FLAGS_SQUIT);

  exit_client(target_p, comment);
  return 0;
}

static struct Message squit_msgtab =
{
  "SQUIT", NULL, 0, 0, 1, MAXPARA, MFLG_SLOW, 0,
  { m_unregistered, m_not_oper, ms_squit, m_ignore, mo_squit, m_ignore }
};

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

static void
module_exit(void)
{
  mod_del_cmd(&squit_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:	4564
Committed:	Sun Aug 24 10:24:47 2014 UTC (9 years, 7 months ago) by michael
Content type:	text/x-csrc
File size:	5905 byte(s)
Log Message:	- Update GPL 2 license headers
#	User	Rev	Content
1	adx	30	/*
2	michael	2820	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	adx	30	*
4	michael	2820	* Copyright (c) 1997-2014 ircd-hybrid development team
5	adx	30	*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18	michael	4564	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19	adx	30	* USA
20			*/
21
22	michael	2820	/*! \file m_squit.c
23			* \brief Includes required functions for processing the SQUIT command.
24			* \version $Id$
25			*/
26
27	adx	30	#include "stdinc.h"
28	michael	1011	#include "list.h"
29	adx	30	#include "client.h"
30			#include "hash.h"
31			#include "irc_string.h"
32			#include "ircd.h"
33			#include "numeric.h"
34	michael	1309	#include "conf.h"
35			#include "log.h"
36	michael	3347	#include "server.h"
37	adx	30	#include "send.h"
38			#include "parse.h"
39			#include "modules.h"
40
41
42			/* mo_squit - SQUIT message handler
43	michael	3096	* parv[0] = command
44	adx	30	* parv[1] = server name
45			* parv[2] = comment
46			*/
47	michael	2820	static int
48	michael	3156	mo_squit(struct Client source_p, int parc, char parv[])
49	adx	30	{
50	michael	3904	char comment[REASONLEN + 1] = "";
51	adx	30	struct Client *target_p = NULL;
52			struct Client *p;
53			dlink_node *ptr;
54			const char *server;
55
56			if (parc < 2 \|\| EmptyString(parv[1]))
57			{
58	michael	3109	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "SQUIT");
59	michael	2820	return 0;
60	adx	30	}
61
62			server = parv[1];
63
64			/* The following allows wild cards in SQUIT. Only
65			* useful when the command is issued by an oper.
66			*/
67	michael	4208	DLINK_FOREACH(ptr, global_server_list.head)
68	adx	30	{
69			p = ptr->data;
70
71			if (IsServer(p) \|\| IsMe(p))
72			{
73	michael	1652	if (!match(server, p->name))
74	adx	30	{
75			target_p = p;
76			break;
77			}
78			}
79			}
80
81			if ((target_p == NULL) \|\| IsMe(target_p))
82			{
83	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, server);
84	michael	2820	return 0;
85	adx	30	}
86
87	michael	2801	if (!MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_SQUIT_REMOTE))
88	adx	30	{
89	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "squit:remote");
90	michael	2820	return 0;
91	adx	30	}
92
93	michael	2801	if (MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_SQUIT))
94			{
95	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "squit");
96	michael	2820	return 0;
97	michael	2801	}
98
99	michael	3904	if (!EmptyString(parv[2]))
100			strlcpy(comment, parv[2], sizeof(comment));
101			else
102			strlcpy(comment, CONF_NOREASON, sizeof(comment));
103	adx	30
104			if (MyConnect(target_p))
105			{
106	michael	1618	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
107			"Received SQUIT %s from %s (%s)",
108	adx	30	target_p->name, get_client_name(source_p, HIDE_IP), comment);
109	michael	1247	ilog(LOG_TYPE_IRCD, "Received SQUIT %s from %s (%s)",
110	adx	30	target_p->name, get_client_name(source_p, HIDE_IP), comment);
111	michael	3171
112			/* To them, we are exiting */
113	michael	3186	sendto_one(target_p, ":%s SQUIT %s :%s", source_p->id, me.id, comment);
114	michael	3171	/* Send to everything but target */
115			sendto_server(target_p, NOCAPS, NOCAPS, ":%s SQUIT %s :%s",
116	michael	3186	source_p->id, target_p->id, comment);
117	adx	30	}
118	michael	3171	else
119			/* Send to everything */
120			sendto_server(NULL, NOCAPS, NOCAPS, ":%s SQUIT %s :%s",
121	michael	3186	source_p->id, target_p->id, comment);
122	adx	30
123	michael	3171	AddFlag(target_p, FLAGS_SQUIT);
124
125			exit_client(target_p, comment);
126	michael	2820	return 0;
127	adx	30	}
128
129			/** NOTE: I removed wildcard lookups here, because a wildcarded
130			** SQUIT should/can never happen in ms_squit. -Michael
131			**/
132
133			/* ms_squit - SQUIT message handler
134	michael	3096	* parv[0] = command
135	adx	30	* parv[1] = server name
136			* parv[2] = comment
137			*/
138	michael	2820	static int
139	michael	3156	ms_squit(struct Client source_p, int parc, char parv[])
140	adx	30	{
141			struct Client *target_p = NULL;
142	michael	1572	const char *comment = NULL;
143	michael	3171	dlink_node *ptr;
144	adx	30
145	michael	1572	if (parc < 2 \|\| EmptyString(parv[parc - 1]))
146	michael	2820	return 0;
147	adx	30
148	michael	1572	if ((target_p = hash_find_server(parv[1])) == NULL)
149	michael	2820	return 0;
150	adx	30
151	michael	1572	if (!IsServer(target_p) && !IsMe(target_p))
152	michael	2820	return 0;
153	adx	30
154	michael	1572	if (IsMe(target_p))
155	michael	3156	target_p = source_p->from;
156	adx	30
157	michael	3156	comment = (parc > 2 && parv[parc - 1]) ? parv[parc - 1] : source_p->name;
158	adx	30
159			if (MyConnect(target_p))
160			{
161	michael	3850	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_GLOBAL, "from %s: Remote SQUIT %s from %s (%s)",
162			me.name, target_p->name, source_p->name, comment);
163	michael	3156	sendto_server(source_p, NOCAPS, NOCAPS,
164	michael	3808	":%s GLOBOPS :Remote SQUIT %s from %s (%s)",
165	adx	30	me.id, target_p->name, source_p->name, comment);
166	michael	1247	ilog(LOG_TYPE_IRCD, "SQUIT From %s : %s (%s)", source_p->name,
167	adx	30	target_p->name, comment);
168	michael	3171
169			/* To them, we are exiting */
170	michael	3186	sendto_one(target_p, ":%s SQUIT %s :%s", source_p->id, me.id, comment);
171	michael	3171
172			/* Send to everything but target and source */
173	michael	4212	DLINK_FOREACH(ptr, local_server_list.head)
174	michael	3171	{
175			struct Client *client_p = ptr->data;
176
177			if (client_p == target_p \|\| client_p == source_p->from)
178			continue;
179
180			sendto_one(client_p, ":%s SQUIT %s :%s",
181	michael	3186	source_p->id, target_p->id, comment);
182	michael	3171	}
183	michael	2820	}
184	michael	3171	else
185			/* Send to everything but source */
186			sendto_server(source_p, NOCAPS, NOCAPS, ":%s SQUIT %s :%s",
187	michael	3186	source_p->id, target_p->id, comment);
188	adx	30
189	michael	3171	AddFlag(target_p, FLAGS_SQUIT);
190
191			exit_client(target_p, comment);
192	michael	2820	return 0;
193	adx	30	}
194	michael	1230
195	michael	2820	static struct Message squit_msgtab =
196			{
197	michael	4546	"SQUIT", NULL, 0, 0, 1, MAXPARA, MFLG_SLOW, 0,
198	michael	2820	{ m_unregistered, m_not_oper, ms_squit, m_ignore, mo_squit, m_ignore }
199	michael	1230	};
200
201			static void
202			module_init(void)
203			{
204			mod_add_cmd(&squit_msgtab);
205			}
206
207			static void
208			module_exit(void)
209			{
210			mod_del_cmd(&squit_msgtab);
211			}
212
213	michael	2820	struct module module_entry =
214			{
215	michael	1230	.node = { NULL, NULL, NULL },
216			.name = NULL,
217			.version = "$Revision$",
218			.handle = NULL,
219			.modinit = module_init,
220			.modexit = module_exit,
221			.flags = MODULE_FLAG_CORE
222			};