trunk/modules/m_xline.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 2003-2019 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_capab.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) == 0)
      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 struct aline_ctx *aline)
{
  char buf[IRCD_BUFSIZE];

  if (!HasFlag(source_p, FLAGS_SERVICE))
  {
    if (valid_wild_card_simple(aline->mask) == false)
    {
      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;
  if ((gecos = gecos_find(aline->mask, match)))
  {
    if (IsClient(source_p))
      sendto_one_notice(source_p, &me, ":[%s] already X-Lined by [%s] - %s",
                        aline->mask, gecos->mask, gecos->reason);
    return;
  }

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

  gecos = gecos_make();
  gecos->mask = xstrdup(aline->mask);
  gecos->reason = xstrdup(buf);
  gecos->setat = event_base->time.sec_real;
  gecos->in_database = true;

  if (aline->duration)
  {
    gecos->expire = event_base->time.sec_real + aline->duration;

    if (IsClient(source_p))
      sendto_one_notice(source_p, &me, ":Added temporary %ju min. X-Line [%s]",
                        aline->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), aline->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), aline->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 void
mo_xline(struct Client *source_p, int parc, char *parv[])
{
  struct aline_ctx aline = { .add = true, .simple_mask = true };

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

  if (parse_aline("XLINE", source_p, parc, parv, &aline) == false)
    return;

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

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

  xline_handle(source_p, &aline);
}

/*! \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 void
ms_xline(struct Client *source_p, int parc, char *parv[])
{
  struct aline_ctx aline =
  {
    .add = true,
    .simple_mask = true,
    .mask = parv[2],
    .reason = parv[4],
    .server = parv[1],
    .duration = strtoumax(parv[3], NULL, 10)
  };

  if (parc != 5 || EmptyString(parv[parc - 1]))
    return;

  sendto_match_servs(source_p, aline.server, CAPAB_CLUSTER, "XLINE %s %s %ju :%s",
                     aline.server, aline.mask, aline.duration, aline.reason);

  if (match(aline.server, me.name))
    return;

  if (HasFlag(source_p, FLAGS_SERVICE) ||
      shared_find(SHARED_XLINE, source_p->servptr->name,
                  source_p->username, source_p->host))
    xline_handle(source_p, &aline);
}

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:	9077
Committed:	Sat Oct 12 20:15:17 2019 UTC (5 years, 10 months ago) by michael
Content type:	text/x-csrc
File size:	7148 byte(s)
Log Message:	- Command handlers are now of type void again
#	User	Rev	Content
1	adx	30	/*
2	michael	2820	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	adx	30	*
4	michael	8752	* Copyright (c) 2003-2019 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	8166	#include "server_capab.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	8603	if (match(gecos->mask, client_p->info) == 0)
59	michael	7304	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	8986	xline_handle(struct Client source_p, const struct aline_ctx aline)
71	michael	2974	{
72	michael	5865	char buf[IRCD_BUFSIZE];
73	michael	2974
74	michael	7415	if (!HasFlag(source_p, FLAGS_SERVICE))
75			{
76	michael	8680	if (valid_wild_card_simple(aline->mask) == false)
77	michael	7415	{
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	8431	struct GecosItem *gecos;
86	michael	8680	if ((gecos = gecos_find(aline->mask, match)))
87	michael	7415	{
88			if (IsClient(source_p))
89			sendto_one_notice(source_p, &me, ":[%s] already X-Lined by [%s] - %s",
90	michael	8680	aline->mask, gecos->mask, gecos->reason);
91	michael	7415	return;
92			}
93
94	michael	8670	if (aline->duration)
95	michael	6782	snprintf(buf, sizeof(buf), "Temporary X-line %ju min. - %.*s (%s)",
96	michael	8670	aline->duration / 60, REASONLEN, aline->reason, date_iso8601(0));
97	michael	5865	else
98	michael	8670	snprintf(buf, sizeof(buf), "%.*s (%s)", REASONLEN, aline->reason, date_iso8601(0));
99	michael	5865
100	michael	7415	gecos = gecos_make();
101	michael	8680	gecos->mask = xstrdup(aline->mask);
102	michael	7304	gecos->reason = xstrdup(buf);
103	michael	8926	gecos->setat = event_base->time.sec_real;
104	michael	8658	gecos->in_database = true;
105	michael	2974
106	michael	8670	if (aline->duration)
107	michael	2974	{
108	michael	8926	gecos->expire = event_base->time.sec_real + aline->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	8670	aline->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	michael	8670	get_oper_name(source_p), aline->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	8670	get_oper_name(source_p), aline->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	9077	static void
149	michael	3156	mo_xline(struct Client source_p, int parc, char parv[])
150	adx	30	{
151	michael	8680	struct aline_ctx aline = { .add = true, .simple_mask = true };
152	adx	30
153	michael	2852	if (!HasOFlag(source_p, OPER_FLAG_XLINE))
154	adx	30	{
155	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "xline");
156	michael	9077	return;
157	adx	30	}
158
159	michael	8670	if (parse_aline("XLINE", source_p, parc, parv, &aline) == false)
160	michael	9077	return;
161	adx	30
162	michael	8670	if (aline.server)
163	adx	30	{
164	michael	8670	sendto_match_servs(source_p, aline.server, CAPAB_CLUSTER, "XLINE %s %s %ju :%s",
165	michael	8680	aline.server, aline.mask, aline.duration, aline.reason);
166	adx	30
167			/* Allow ON to apply local xline as well if it matches */
168	michael	8670	if (match(aline.server, me.name))
169	michael	9077	return;
170	adx	30	}
171	michael	2820	else
172	michael	7209	cluster_distribute(source_p, "XLINE", CAPAB_CLUSTER, CLUSTER_XLINE, "%s %ju :%s",
173	michael	8680	aline.mask, aline.mask, aline.reason);
174	adx	30
175	michael	8670	xline_handle(source_p, &aline);
176	adx	30	}
177
178	michael	5870	/*! \brief XLINE command handler
179	adx	30	*
180	michael	5870	* \param source_p Pointer to allocated Client struct from which the message
181			* originally comes from. This can be a local or remote client.
182			* \param parc Integer holding the number of supplied arguments.
183			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
184			* pointers.
185			* \note Valid arguments for this command are:
186			* - parv[0] = command
187	michael	7094	* - parv[1] = target server mask
188	michael	5870	* - parv[2] = gecos
189	michael	7094	* - parv[3] = duration in seconds
190	michael	5870	* - parv[4] = reason
191	adx	30	*/
192	michael	9077	static void
193	michael	3156	ms_xline(struct Client source_p, int parc, char parv[])
194	adx	30	{
195	michael	8670	struct aline_ctx aline =
196			{
197			.add = true,
198	michael	8680	.simple_mask = true,
199			.mask = parv[2],
200	michael	8670	.reason = parv[4],
201			.server = parv[1],
202			.duration = strtoumax(parv[3], NULL, 10)
203			};
204
205			if (parc != 5 \|\| EmptyString(parv[parc - 1]))
206	michael	9077	return;
207	adx	30
208	michael	8670	sendto_match_servs(source_p, aline.server, CAPAB_CLUSTER, "XLINE %s %s %ju :%s",
209	michael	8680	aline.server, aline.mask, aline.duration, aline.reason);
210	michael	4646
211	michael	8670	if (match(aline.server, me.name))
212	michael	9077	return;
213	adx	30
214	michael	7413	if (HasFlag(source_p, FLAGS_SERVICE) \|\|
215			shared_find(SHARED_XLINE, source_p->servptr->name,
216			source_p->username, source_p->host))
217	michael	8670	xline_handle(source_p, &aline);
218	adx	30	}
219
220	michael	2820	static struct Message xline_msgtab =
221			{
222	michael	5881	.cmd = "XLINE",
223			.args_min = 2,
224			.args_max = MAXPARA,
225			.handlers[UNREGISTERED_HANDLER] = m_unregistered,
226			.handlers[CLIENT_HANDLER] = m_not_oper,
227			.handlers[SERVER_HANDLER] = ms_xline,
228	michael	6850	.handlers[ENCAP_HANDLER] = m_ignore,
229	michael	5881	.handlers[OPER_HANDLER] = mo_xline
230	michael	1230	};
231
232			static void
233			module_init(void)
234			{
235			mod_add_cmd(&xline_msgtab);
236			}
237
238			static void
239			module_exit(void)
240			{
241			mod_del_cmd(&xline_msgtab);
242			}
243
244	michael	2820	struct module module_entry =
245			{
246	michael	1230	.version = "$Revision$",
247			.modinit = module_init,
248			.modexit = module_exit,
249			};