modules/core/m_squit.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_squit.c: Makes a server quit.
 *
 *  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"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "conf.h"
#include "log.h"
#include "s_serv.h"
#include "send.h"
#include "parse.h"
#include "modules.h"


/* mo_squit - SQUIT message handler
 *  parv[0] = sender prefix
 *  parv[1] = server name
 *  parv[2] = comment
 */
static void
mo_squit(struct Client *client_p, struct Client *source_p,
         int parc, char *parv[])
{
  struct Client *target_p = NULL;
  struct Client *p;
  dlink_node *ptr;
  char *comment;
  const char *server;
  char def_reason[] = CONF_NOREASON;

  if (parc < 2 || EmptyString(parv[1]))
  {
    sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
               me.name, source_p->name, "SQUIT");
    return;
  }

  server = parv[1];

  /* The following allows wild cards in SQUIT. Only
   * useful when the command is issued by an oper.
   */
  DLINK_FOREACH(ptr, global_serv_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(source_p, form_str(ERR_NOSUCHSERVER),
               me.name, source_p->name, server);
    return;
  }

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

  comment = (parc > 2 && parv[2]) ? parv[2] : def_reason;

  if (strlen(comment) > (size_t)REASONLEN)
    comment[REASONLEN] = '\0';

  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);
  }

  exit_client(target_p, source_p, comment);
}

/** 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] = sender prefix
 *  parv[1] = server name
 *  parv[2] = comment
 */
static void
ms_squit(struct Client *client_p, struct Client *source_p,
         int parc, char *parv[])
{
  struct Client *target_p = NULL;
  const char *comment = NULL;

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

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

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

  if (IsMe(target_p))
    target_p = client_p;

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

  if (MyConnect(target_p))
  {
    sendto_wallops_flags(UMODE_WALLOP, &me, "Remote SQUIT %s from %s (%s)",
                         target_p->name, source_p->name, comment);
    sendto_server(NULL, CAP_TS6, NOCAPS,
                  ":%s WALLOPS :Remote SQUIT %s from %s (%s)",
                  me.id, target_p->name, source_p->name, comment);
    sendto_server(NULL, NOCAPS, CAP_TS6,
                  ":%s WALLOPS :Remote SQUIT %s from %s (%s)",
                  me.name, target_p->name, source_p->name, comment);
    ilog(LOG_TYPE_IRCD, "SQUIT From %s : %s (%s)", source_p->name,
         target_p->name, comment);
   }

   exit_client(target_p, source_p, comment);
}

static struct Message squit_msgtab = {
  "SQUIT", 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:	2012
Committed:	Sun May 12 14:47:26 2013 UTC (13 years, 5 months ago) by michael
Content type:	text/x-csrc
File size:	4936 byte(s)
Log Message:	- Removed 'remote', and 'global_kill' oper flags, and added 'connect', 'squit', and 'kill' flags for better fine-tuning instead. Whether or not a specific action is allowed on a remote server can be controlled by appeding the ':remote' flag. For example: 'kill' allows only local clients to be killed, whereas 'kill:remote' allows to issue a KILL for remote clients
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* m_squit.c: Makes a server quit.
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"
29			#include "irc_string.h"
30			#include "ircd.h"
31			#include "numeric.h"
32	michael	1309	#include "conf.h"
33			#include "log.h"
34	adx	30	#include "s_serv.h"
35			#include "send.h"
36			#include "parse.h"
37			#include "modules.h"
38
39
40			/* mo_squit - SQUIT message handler
41			* parv[0] = sender prefix
42			* parv[1] = server name
43			* parv[2] = comment
44			*/
45			static void
46			mo_squit(struct Client client_p, struct Client source_p,
47			int parc, char *parv[])
48			{
49			struct Client *target_p = NULL;
50			struct Client *p;
51			dlink_node *ptr;
52			char *comment;
53			const char *server;
54	michael	1794	char def_reason[] = CONF_NOREASON;
55	adx	30
56			if (parc < 2 \|\| EmptyString(parv[1]))
57			{
58	michael	1834	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
59	adx	30	me.name, source_p->name, "SQUIT");
60			return;
61			}
62
63			server = parv[1];
64
65			/* The following allows wild cards in SQUIT. Only
66			* useful when the command is issued by an oper.
67			*/
68			DLINK_FOREACH(ptr, global_serv_list.head)
69			{
70			p = ptr->data;
71
72			if (IsServer(p) \|\| IsMe(p))
73			{
74	michael	1652	if (!match(server, p->name))
75	adx	30	{
76			target_p = p;
77			break;
78			}
79			}
80			}
81
82			if ((target_p == NULL) \|\| IsMe(target_p))
83			{
84	michael	1834	sendto_one(source_p, form_str(ERR_NOSUCHSERVER),
85	adx	30	me.name, source_p->name, server);
86			return;
87			}
88
89	michael	2012	if ((!MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_SQUIT_REMOTE)) \|\|
90			(MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_SQUIT)))
91	adx	30	{
92	michael	1834	sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
93	adx	30	me.name, source_p->name);
94			return;
95			}
96
97			comment = (parc > 2 && parv[2]) ? parv[2] : def_reason;
98
99			if (strlen(comment) > (size_t)REASONLEN)
100			comment[REASONLEN] = '\0';
101
102			if (MyConnect(target_p))
103			{
104	michael	1618	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
105			"Received SQUIT %s from %s (%s)",
106	adx	30	target_p->name, get_client_name(source_p, HIDE_IP), comment);
107	michael	1247	ilog(LOG_TYPE_IRCD, "Received SQUIT %s from %s (%s)",
108	adx	30	target_p->name, get_client_name(source_p, HIDE_IP), comment);
109			}
110
111			exit_client(target_p, source_p, comment);
112			}
113
114			/** NOTE: I removed wildcard lookups here, because a wildcarded
115			** SQUIT should/can never happen in ms_squit. -Michael
116			**/
117
118			/* ms_squit - SQUIT message handler
119			* parv[0] = sender prefix
120			* parv[1] = server name
121			* parv[2] = comment
122			*/
123			static void
124			ms_squit(struct Client client_p, struct Client source_p,
125			int parc, char *parv[])
126			{
127			struct Client *target_p = NULL;
128	michael	1572	const char *comment = NULL;
129	adx	30
130	michael	1572	if (parc < 2 \|\| EmptyString(parv[parc - 1]))
131	adx	30	return;
132
133	michael	1572	if ((target_p = hash_find_server(parv[1])) == NULL)
134	adx	30	return;
135
136	michael	1572	if (!IsServer(target_p) && !IsMe(target_p))
137	adx	30	return;
138
139	michael	1572	if (IsMe(target_p))
140			target_p = client_p;
141	adx	30
142	michael	1572	comment = (parc > 2 && parv[parc - 1]) ? parv[parc - 1] : client_p->name;
143	adx	30
144			if (MyConnect(target_p))
145			{
146			sendto_wallops_flags(UMODE_WALLOP, &me, "Remote SQUIT %s from %s (%s)",
147			target_p->name, source_p->name, comment);
148	michael	1474	sendto_server(NULL, CAP_TS6, NOCAPS,
149	adx	30	":%s WALLOPS :Remote SQUIT %s from %s (%s)",
150			me.id, target_p->name, source_p->name, comment);
151	michael	1474	sendto_server(NULL, NOCAPS, CAP_TS6,
152	adx	30	":%s WALLOPS :Remote SQUIT %s from %s (%s)",
153			me.name, target_p->name, source_p->name, comment);
154	michael	1247	ilog(LOG_TYPE_IRCD, "SQUIT From %s : %s (%s)", source_p->name,
155	adx	30	target_p->name, comment);
156			}
157
158			exit_client(target_p, source_p, comment);
159			}
160	michael	1230
161			static struct Message squit_msgtab = {
162			"SQUIT", 0, 0, 1, MAXPARA, MFLG_SLOW, 0,
163			{m_unregistered, m_not_oper, ms_squit, m_ignore, mo_squit, m_ignore}
164			};
165
166			static void
167			module_init(void)
168			{
169			mod_add_cmd(&squit_msgtab);
170			}
171
172			static void
173			module_exit(void)
174			{
175			mod_del_cmd(&squit_msgtab);
176			}
177
178			struct module module_entry = {
179			.node = { NULL, NULL, NULL },
180			.name = NULL,
181			.version = "$Revision$",
182			.handle = NULL,
183			.modinit = module_init,
184			.modexit = module_exit,
185			.flags = MODULE_FLAG_CORE
186			};