trunk/modules/m_xline.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 2003-2017 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_xline.c
 * \brief Includes required functions for processing the XLINE command.
 * \version $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "client.h"
#include "irc_string.h"
#include "ircd.h"
#include "conf.h"
#include "conf_cluster.h"
#include "conf_gecos.h"
#include "conf_shared.h"
#include "numeric.h"
#include "log.h"
#include "misc.h"
#include "send.h"
#include "server.h"
#include "parse.h"
#include "modules.h"
#include "memory.h"


static void
xline_check(const struct GecosItem *gecos)
{
  dlink_node *node, *node_next;

  DLINK_FOREACH_SAFE(node, node_next, local_client_list.head)
  {
    struct Client *client_p = node->data;

    if (IsDead(client_p))
      continue;

    if (!match(gecos->mask, client_p->info))
      conf_try_ban(client_p, CLIENT_BAN_XLINE, gecos->reason);
  }
}

/* xline_handle()
 *
 * inputs       - client taking credit for xline, gecos, reason, xline type
 * outputs      - none
 * side effects - when successful, adds an xline to the conf
 */
static void
xline_handle(struct Client *source_p, const char *mask, const char *reason, uintmax_t duration)
{
  char buf[IRCD_BUFSIZE];

  if (!HasFlag(source_p, FLAGS_SERVICE))
  {
    if (!valid_wild_card_simple(mask))
    {
      if (IsClient(source_p))
        sendto_one_notice(source_p, &me, ":Please include at least %u non-wildcard characters with the xline",
                          ConfigGeneral.min_nonwildcard_simple);
      return;
    }
  }

  struct GecosItem *gecos = gecos_find(mask, match);
  if (gecos)
  {
    if (IsClient(source_p))
      sendto_one_notice(source_p, &me, ":[%s] already X-Lined by [%s] - %s",
                        mask, gecos->mask, gecos->reason);
    return;
  }

  if (duration)
    snprintf(buf, sizeof(buf), "Temporary X-line %ju min. - %.*s (%s)",
             duration / 60, REASONLEN, reason, date_iso8601(0));
  else
    snprintf(buf, sizeof(buf), "%.*s (%s)", REASONLEN, reason, date_iso8601(0));

  gecos = gecos_make();
  gecos->mask = xstrdup(mask);
  gecos->reason = xstrdup(buf);
  gecos->setat = CurrentTime;
  gecos->in_database = 1;

  if (duration)
  {
    gecos->expire = CurrentTime + duration;

    if (IsClient(source_p))
      sendto_one_notice(source_p, &me, ":Added temporary %ju min. X-Line [%s]",
                        duration / 60, gecos->mask);

    sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
                         "%s added temporary %ju min. X-Line for [%s] [%s]",
                         get_oper_name(source_p), duration / 60,
                         gecos->mask, gecos->reason);
    ilog(LOG_TYPE_XLINE, "%s added temporary %ju min. X-Line for [%s] [%s]",
         get_oper_name(source_p), duration / 60, gecos->mask, gecos->reason);
  }
  else
  {
    if (IsClient(source_p))
      sendto_one_notice(source_p, &me, ":Added X-Line [%s] [%s]",
                        gecos->mask, gecos->reason);

    sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
                         "%s added X-Line for [%s] [%s]",
                         get_oper_name(source_p), gecos->mask,
                         gecos->reason);
    ilog(LOG_TYPE_XLINE, "%s added X-Line for [%s] [%s]",
         get_oper_name(source_p), gecos->mask, gecos->reason);
  }

  xline_check(gecos);
}

/* mo_xline()
 *
 * inputs       - pointer to server
 *              - pointer to client
 *              - parameter count
 *              - parameter list
 * output       -
 * side effects - x line is added
 *
 */
static int
mo_xline(struct Client *source_p, int parc, char *parv[])
{
  char *reason = NULL;
  char *mask = NULL;
  char *target_server = NULL;
  uintmax_t duration = 0;

  if (!HasOFlag(source_p, OPER_FLAG_XLINE))
  {
    sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "xline");
    return 0;
  }

  if (!parse_aline("XLINE", source_p, parc, parv, &mask, NULL,
                   &duration, &target_server, &reason))
    return 0;

  if (target_server)
  {
    sendto_match_servs(source_p, target_server, CAPAB_CLUSTER, "XLINE %s %s %ju :%s",
                       target_server, mask, duration, reason);

    /* Allow ON to apply local xline as well if it matches */
    if (match(target_server, me.name))
      return 0;
  }
  else
    cluster_distribute(source_p, "XLINE", CAPAB_CLUSTER, CLUSTER_XLINE, "%s %ju :%s",
                       mask, duration, reason);

  xline_handle(source_p, mask, reason, duration);
  return 0;
}

/*! \brief XLINE command handler
 *
 * \param source_p Pointer to allocated Client struct from which the message
 *                 originally comes from.  This can be a local or remote client.
 * \param parc     Integer holding the number of supplied arguments.
 * \param parv     Argument vector where parv[0] .. parv[parc-1] are non-NULL
 *                 pointers.
 * \note Valid arguments for this command are:
 *      - parv[0] = command
 *      - parv[1] = target server mask
 *      - parv[2] = gecos
 *      - parv[3] = duration in seconds
 *      - parv[4] = reason
 */
static int
ms_xline(struct Client *source_p, int parc, char *parv[])
{
  if (parc != 5 || EmptyString(parv[4]))
    return 0;

  sendto_match_servs(source_p, parv[1], CAPAB_CLUSTER, "XLINE %s %s %s :%s",
                     parv[1], parv[2], parv[3], parv[4]);

  if (match(parv[1], me.name))
    return 0;

  if (HasFlag(source_p, FLAGS_SERVICE) ||
      shared_find(SHARED_XLINE, source_p->servptr->name,
                  source_p->username, source_p->host))
    xline_handle(source_p, parv[2], parv[4], strtoumax(parv[3], NULL, 10));

  return 0;
}

static struct Message xline_msgtab =
{
  .cmd = "XLINE",
  .args_min = 2,
  .args_max = MAXPARA,
  .handlers[UNREGISTERED_HANDLER] = m_unregistered,
  .handlers[CLIENT_HANDLER] = m_not_oper,
  .handlers[SERVER_HANDLER] = ms_xline,
  .handlers[ENCAP_HANDLER] = m_ignore,
  .handlers[OPER_HANDLER] = mo_xline
};

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

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

struct module module_entry =
{
  .version = "$Revision$",
  .modinit = module_init,
  .modexit = module_exit,
};
Revision:	8026
Committed:	Fri Mar 17 15:34:00 2017 UTC (9 years, 4 months ago) by michael
Content type:	text/x-csrc
File size:	6952 byte(s)
Log Message:	- m_xline.c: fixed style inconsistencies
#	User	Rev	Content
1	adx	30	/*
2	michael	2820	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	adx	30	*
4	michael	7924	* Copyright (c) 2003-2017 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	4565	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19	adx	30	* USA
20			*/
21
22	michael	2820	/*! \file m_xline.c
23	michael	3352	* \brief Includes required functions for processing the XLINE command.
24	michael	2820	* \version $Id$
25			*/
26
27	adx	30	#include "stdinc.h"
28	michael	1011	#include "list.h"
29	adx	30	#include "client.h"
30			#include "irc_string.h"
31			#include "ircd.h"
32	michael	1632	#include "conf.h"
33	michael	7209	#include "conf_cluster.h"
34	michael	7304	#include "conf_gecos.h"
35	michael	7209	#include "conf_shared.h"
36	adx	30	#include "numeric.h"
37	michael	1309	#include "log.h"
38	michael	5823	#include "misc.h"
39	adx	30	#include "send.h"
40	michael	3347	#include "server.h"
41	adx	30	#include "parse.h"
42			#include "modules.h"
43	michael	1666	#include "memory.h"
44	adx	30
45
46	michael	2877	static void
47	michael	7435	xline_check(const struct GecosItem *gecos)
48	michael	2877	{
49	michael	8026	dlink_node node, node_next;
50	michael	2877
51	michael	4815	DLINK_FOREACH_SAFE(node, node_next, local_client_list.head)
52	michael	2877	{
53	michael	4815	struct Client *client_p = node->data;
54	michael	2877
55			if (IsDead(client_p))
56			continue;
57
58	michael	7304	if (!match(gecos->mask, client_p->info))
59			conf_try_ban(client_p, CLIENT_BAN_XLINE, gecos->reason);
60	michael	2877	}
61			}
62
63	michael	7415	/* xline_handle()
64	michael	2974	*
65			* inputs - client taking credit for xline, gecos, reason, xline type
66			* outputs - none
67			* side effects - when successful, adds an xline to the conf
68			*/
69			static void
70	michael	7673	xline_handle(struct Client source_p, const char mask, const char *reason, uintmax_t duration)
71	michael	2974	{
72	michael	5865	char buf[IRCD_BUFSIZE];
73	michael	2974
74	michael	7415	if (!HasFlag(source_p, FLAGS_SERVICE))
75			{
76			if (!valid_wild_card_simple(mask))
77			{
78			if (IsClient(source_p))
79			sendto_one_notice(source_p, &me, ":Please include at least %u non-wildcard characters with the xline",
80			ConfigGeneral.min_nonwildcard_simple);
81			return;
82			}
83			}
84
85	michael	8026	struct GecosItem *gecos = gecos_find(mask, match);
86			if (gecos)
87	michael	7415	{
88			if (IsClient(source_p))
89			sendto_one_notice(source_p, &me, ":[%s] already X-Lined by [%s] - %s",
90			mask, gecos->mask, gecos->reason);
91			return;
92			}
93
94	michael	6458	if (duration)
95	michael	6782	snprintf(buf, sizeof(buf), "Temporary X-line %ju min. - %.*s (%s)",
96			duration / 60, REASONLEN, reason, date_iso8601(0));
97	michael	5865	else
98	michael	6422	snprintf(buf, sizeof(buf), "%.*s (%s)", REASONLEN, reason, date_iso8601(0));
99	michael	5865
100	michael	7415	gecos = gecos_make();
101	michael	7304	gecos->mask = xstrdup(mask);
102			gecos->reason = xstrdup(buf);
103			gecos->setat = CurrentTime;
104			gecos->in_database = 1;
105	michael	2974
106	michael	6458	if (duration)
107	michael	2974	{
108	michael	7304	gecos->expire = CurrentTime + duration;
109	michael	5875
110	michael	4646	if (IsClient(source_p))
111	michael	6782	sendto_one_notice(source_p, &me, ":Added temporary %ju min. X-Line [%s]",
112	michael	7304	duration / 60, gecos->mask);
113	michael	4890
114	michael	6318	sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
115	michael	6782	"%s added temporary %ju min. X-Line for [%s] [%s]",
116			get_oper_name(source_p), duration / 60,
117	michael	7304	gecos->mask, gecos->reason);
118	michael	6782	ilog(LOG_TYPE_XLINE, "%s added temporary %ju min. X-Line for [%s] [%s]",
119	michael	7304	get_oper_name(source_p), duration / 60, gecos->mask, gecos->reason);
120	michael	2974	}
121			else
122			{
123	michael	4646	if (IsClient(source_p))
124			sendto_one_notice(source_p, &me, ":Added X-Line [%s] [%s]",
125	michael	7304	gecos->mask, gecos->reason);
126	michael	4890
127	michael	6318	sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
128	michael	2974	"%s added X-Line for [%s] [%s]",
129	michael	7304	get_oper_name(source_p), gecos->mask,
130			gecos->reason);
131	michael	2974	ilog(LOG_TYPE_XLINE, "%s added X-Line for [%s] [%s]",
132	michael	7304	get_oper_name(source_p), gecos->mask, gecos->reason);
133	michael	2974	}
134
135	michael	7304	xline_check(gecos);
136	michael	2974	}
137
138	adx	30	/* mo_xline()
139			*
140			* inputs - pointer to server
141			* - pointer to client
142			* - parameter count
143			* - parameter list
144			* output -
145			* side effects - x line is added
146			*
147			*/
148	michael	2820	static int
149	michael	3156	mo_xline(struct Client source_p, int parc, char parv[])
150	adx	30	{
151			char *reason = NULL;
152	michael	7304	char *mask = NULL;
153	adx	30	char *target_server = NULL;
154	michael	7330	uintmax_t duration = 0;
155	adx	30
156	michael	2852	if (!HasOFlag(source_p, OPER_FLAG_XLINE))
157	adx	30	{
158	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "xline");
159	michael	2820	return 0;
160	adx	30	}
161
162	michael	7429	if (!parse_aline("XLINE", source_p, parc, parv, &mask, NULL,
163	michael	6458	&duration, &target_server, &reason))
164	michael	2820	return 0;
165	adx	30
166	michael	3368	if (target_server)
167	adx	30	{
168	michael	6782	sendto_match_servs(source_p, target_server, CAPAB_CLUSTER, "XLINE %s %s %ju :%s",
169	michael	7304	target_server, mask, duration, reason);
170	adx	30
171			/* Allow ON to apply local xline as well if it matches */
172	michael	1652	if (match(target_server, me.name))
173	michael	2820	return 0;
174	adx	30	}
175	michael	2820	else
176	michael	7209	cluster_distribute(source_p, "XLINE", CAPAB_CLUSTER, CLUSTER_XLINE, "%s %ju :%s",
177	michael	7304	mask, duration, reason);
178	adx	30
179	michael	7415	xline_handle(source_p, mask, reason, duration);
180	michael	2820	return 0;
181	adx	30	}
182
183	michael	5870	/*! \brief XLINE command handler
184	adx	30	*
185	michael	5870	* \param source_p Pointer to allocated Client struct from which the message
186			* originally comes from. This can be a local or remote client.
187			* \param parc Integer holding the number of supplied arguments.
188			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
189			* pointers.
190			* \note Valid arguments for this command are:
191			* - parv[0] = command
192	michael	7094	* - parv[1] = target server mask
193	michael	5870	* - parv[2] = gecos
194	michael	7094	* - parv[3] = duration in seconds
195	michael	5870	* - parv[4] = reason
196	adx	30	*/
197	michael	2820	static int
198	michael	3156	ms_xline(struct Client source_p, int parc, char parv[])
199	adx	30	{
200			if (parc != 5 \|\| EmptyString(parv[4]))
201	michael	2820	return 0;
202	adx	30
203	michael	6354	sendto_match_servs(source_p, parv[1], CAPAB_CLUSTER, "XLINE %s %s %s :%s",
204	michael	4646	parv[1], parv[2], parv[3], parv[4]);
205
206			if (match(parv[1], me.name))
207	michael	2820	return 0;
208	adx	30
209	michael	7413	if (HasFlag(source_p, FLAGS_SERVICE) \|\|
210			shared_find(SHARED_XLINE, source_p->servptr->name,
211			source_p->username, source_p->host))
212	michael	7415	xline_handle(source_p, parv[2], parv[4], strtoumax(parv[3], NULL, 10));
213	adx	30
214	michael	2820	return 0;
215	adx	30	}
216
217	michael	2820	static struct Message xline_msgtab =
218			{
219	michael	5881	.cmd = "XLINE",
220			.args_min = 2,
221			.args_max = MAXPARA,
222			.handlers[UNREGISTERED_HANDLER] = m_unregistered,
223			.handlers[CLIENT_HANDLER] = m_not_oper,
224			.handlers[SERVER_HANDLER] = ms_xline,
225	michael	6850	.handlers[ENCAP_HANDLER] = m_ignore,
226	michael	5881	.handlers[OPER_HANDLER] = mo_xline
227	michael	1230	};
228
229			static void
230			module_init(void)
231			{
232			mod_add_cmd(&xline_msgtab);
233			}
234
235			static void
236			module_exit(void)
237			{
238			mod_del_cmd(&xline_msgtab);
239			}
240
241	michael	2820	struct module module_entry =
242			{
243	michael	1230	.version = "$Revision$",
244			.modinit = module_init,
245			.modexit = module_exit,
246			};