trunk/modules/m_xline.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 2003-2014 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  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 "numeric.h"
#include "log.h"
#include "send.h"
#include "server.h"
#include "parse.h"
#include "modules.h"
#include "conf_db.h"
#include "memory.h"


static void
check_xline(struct MaskItem *conf)
{
  dlink_node *ptr = NULL, *ptr_next = NULL;

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

    if (IsDead(client_p))
      continue;

    if (!match(conf->name, client_p->info))
      conf_try_ban(client_p, conf);
  }
}

/* valid_xline()
 *
 * inputs       - client to complain to, gecos, reason, whether to complain
 * outputs      - 1 for valid, else 0
 * side effects - complains to client, when warn != 0
 */
static int
valid_xline(struct Client *source_p, const char *gecos, const char *reason)
{
  if (EmptyString(reason))
  {
    sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "XLINE");
    return 0;
  }

  if (!valid_wild_card_simple(gecos))
  {
    sendto_one_notice(source_p, &me, ":Please include at least %u non-wildcard characters with the xline",
                      ConfigGeneral.min_nonwildcard_simple);
    return 0;
  }

  return 1;
}

/* write_xline()
 *
 * inputs       - client taking credit for xline, gecos, reason, xline type
 * outputs      - none
 * side effects - when successful, adds an xline to the conf
 */
static void
write_xline(struct Client *source_p, char *gecos, char *reason,
            time_t tkline_time)
{
  struct MaskItem *conf = conf_make(CONF_XLINE);

  conf->name = xstrdup(gecos);
  conf->reason = xstrdup(reason);
  conf->setat = CurrentTime;

  SetConfDatabase(conf);

  if (tkline_time)
  {
    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
                         "%s added temporary %d min. X-Line for [%s] [%s]",
                         get_oper_name(source_p), (int)tkline_time/60,
                         conf->name, conf->reason);
    sendto_one_notice(source_p, &me, ":Added temporary %d min. X-Line [%s]",
                      (int)tkline_time/60, conf->name);
    ilog(LOG_TYPE_XLINE, "%s added temporary %d min. X-Line for [%s] [%s]",
         source_p->name, (int)tkline_time/60, conf->name, conf->reason);
    conf->until = CurrentTime + tkline_time;
  }
  else
  {
    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
                         "%s added X-Line for [%s] [%s]",
                         get_oper_name(source_p), conf->name,
                         conf->reason);
    sendto_one_notice(source_p, &me, ":Added X-Line [%s] [%s]",
                      conf->name, conf->reason);
    ilog(LOG_TYPE_XLINE, "%s added X-Line for [%s] [%s]",
         get_oper_name(source_p), conf->name, conf->reason);
  }

  check_xline(conf);
}

static void
relay_xline(struct Client *source_p, char *parv[])
{
  struct MaskItem *conf = NULL;
  int t_sec;

  t_sec = atoi(parv[3]);

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

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

  if (HasFlag(source_p, FLAGS_SERVICE) || find_matching_name_conf(CONF_ULINE, source_p->servptr->name,
                              source_p->username, source_p->host,
                              SHARED_XLINE))
  {
    if ((conf = find_matching_name_conf(CONF_XLINE, parv[2], NULL, NULL, 0)))
    {
      sendto_one_notice(source_p, &me, ":[%s] already X-Lined by [%s] - %s",
                        parv[2], conf->name, conf->reason);
      return;
    }

    write_xline(source_p, parv[2], parv[4], t_sec);
  }
}

/* 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 *gecos = NULL;
  struct MaskItem *conf = NULL;
  char *target_server = NULL;
  time_t tkline_time = 0;

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

  /*
   * XLINE <gecos> <time> ON <mask> :<reason>
   * XLINE <gecos> ON <mask> :<reason>
   */
  if (parse_aline("XLINE", source_p, parc, parv, 0, &gecos, NULL,
                  &tkline_time, &target_server, &reason) < 0)
    return 0;

  if (target_server)
  {
    /* if a given expire time is given, ENCAP it */
    if (tkline_time)
      sendto_match_servs(source_p, target_server, CAP_ENCAP,
                         "ENCAP %s XLINE %d %s 0 :%s",
                         target_server, (int)tkline_time, gecos, reason);
    else
      sendto_match_servs(source_p, target_server, CAP_CLUSTER,
                         "XLINE %s %s %d :%s",
                         target_server, gecos, (int)tkline_time, reason);

    /* Allow ON to apply local xline as well if it matches */
    if (match(target_server, me.name))
      return 0;
  }
  else
  {
    if (tkline_time)
      cluster_a_line(source_p, "ENCAP", CAP_ENCAP, SHARED_XLINE,
                     "XLINE %d %s 0 :%s", (int)tkline_time, gecos, reason);
    else
      cluster_a_line(source_p, "XLINE", CAP_KLN, SHARED_XLINE,
                     "%s 0 :%s", gecos, reason);
  }

  if (!valid_xline(source_p, gecos, reason))
    return 0;

  if ((conf = find_matching_name_conf(CONF_XLINE, gecos, NULL, NULL, 0)))
  {
    sendto_one_notice(source_p, &me, ":[%s] already X-Lined by [%s] - %s",
                      gecos, conf->name, conf->reason);
    return 0;
  }

  write_xline(source_p, gecos, reason, tkline_time);
  return 0;
}

/* ms_xline()
 *
 * inputs       - oper, target server, xline, {type}, reason
 *
 * outputs      - none
 * side effects - propagates xline, applies it if we are a target
 */
static int
ms_xline(struct Client *source_p, int parc, char *parv[])
{
  if (parc != 5 || EmptyString(parv[4]))
    return 0;

  if (!IsClient(source_p))
    return 0;

  if (!valid_xline(source_p, parv[2], parv[4]))
    return 0;

  relay_xline(source_p, parv);
  return 0;
}

/* me_xline()
 *
 * inputs       - server
 *              - client (oper)
 *              - parc number of arguments
 *              - parv list of arguments
 * via parv[]
 * parv[1] = target server
 * parv[2] = xline
 * parv[3] = time
 * parv[4] = reason
 *
 * outputs      - none
 * side effects -
 */
static int
me_xline(struct Client *source_p, int parc, char *parv[])
{
  if (!IsClient(source_p) || parc != 5)
    return 0;

  relay_xline(source_p, parv);
  return 0;
}

static struct Message xline_msgtab =
{
  "XLINE", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
  { m_unregistered, m_not_oper, ms_xline, me_xline, mo_xline, m_ignore }
};

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

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

struct module module_entry =
{
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = 0
};
Revision:	4340
Committed:	Sat Aug 2 16:53:22 2014 UTC (11 years ago) by michael
Content type:	text/x-csrc
File size:	8012 byte(s)
Log Message:	- Renamed structures to meet code conventions
#	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) 2003-2014 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			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19			* 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	adx	30	#include "numeric.h"
34	michael	1309	#include "log.h"
35	adx	30	#include "send.h"
36	michael	3347	#include "server.h"
37	adx	30	#include "parse.h"
38			#include "modules.h"
39	michael	1622	#include "conf_db.h"
40	michael	1666	#include "memory.h"
41	adx	30
42
43	michael	2877	static void
44			check_xline(struct MaskItem *conf)
45			{
46			dlink_node ptr = NULL, ptr_next = NULL;
47
48			DLINK_FOREACH_SAFE(ptr, ptr_next, local_client_list.head)
49			{
50			struct Client *client_p = ptr->data;
51
52			if (IsDead(client_p))
53			continue;
54
55	michael	4242	if (!match(conf->name, client_p->info))
56	michael	2877	conf_try_ban(client_p, conf);
57			}
58			}
59
60	michael	2974	/* valid_xline()
61			*
62			* inputs - client to complain to, gecos, reason, whether to complain
63			* outputs - 1 for valid, else 0
64			* side effects - complains to client, when warn != 0
65			*/
66			static int
67	michael	4274	valid_xline(struct Client source_p, const char gecos, const char *reason)
68	michael	2974	{
69			if (EmptyString(reason))
70			{
71	michael	4274	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "XLINE");
72	michael	2974	return 0;
73			}
74
75			if (!valid_wild_card_simple(gecos))
76			{
77	michael	4274	sendto_one_notice(source_p, &me, ":Please include at least %u non-wildcard characters with the xline",
78	michael	4340	ConfigGeneral.min_nonwildcard_simple);
79	michael	2974	return 0;
80			}
81
82			return 1;
83			}
84
85			/* write_xline()
86			*
87			* inputs - client taking credit for xline, gecos, reason, xline type
88			* outputs - none
89			* side effects - when successful, adds an xline to the conf
90			*/
91			static void
92			write_xline(struct Client source_p, char gecos, char *reason,
93			time_t tkline_time)
94			{
95			struct MaskItem *conf = conf_make(CONF_XLINE);
96
97			conf->name = xstrdup(gecos);
98			conf->reason = xstrdup(reason);
99			conf->setat = CurrentTime;
100
101			SetConfDatabase(conf);
102
103	michael	3368	if (tkline_time)
104	michael	2974	{
105			sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
106			"%s added temporary %d min. X-Line for [%s] [%s]",
107			get_oper_name(source_p), (int)tkline_time/60,
108			conf->name, conf->reason);
109	michael	3110	sendto_one_notice(source_p, &me, ":Added temporary %d min. X-Line [%s]",
110			(int)tkline_time/60, conf->name);
111	michael	2974	ilog(LOG_TYPE_XLINE, "%s added temporary %d min. X-Line for [%s] [%s]",
112			source_p->name, (int)tkline_time/60, conf->name, conf->reason);
113			conf->until = CurrentTime + tkline_time;
114			}
115			else
116			{
117			sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
118			"%s added X-Line for [%s] [%s]",
119			get_oper_name(source_p), conf->name,
120			conf->reason);
121	michael	3110	sendto_one_notice(source_p, &me, ":Added X-Line [%s] [%s]",
122			conf->name, conf->reason);
123	michael	2974	ilog(LOG_TYPE_XLINE, "%s added X-Line for [%s] [%s]",
124			get_oper_name(source_p), conf->name, conf->reason);
125			}
126
127			check_xline(conf);
128			}
129
130			static void
131			relay_xline(struct Client source_p, char parv[])
132			{
133			struct MaskItem *conf = NULL;
134			int t_sec;
135
136			t_sec = atoi(parv[3]);
137
138			sendto_match_servs(source_p, parv[1], CAP_CLUSTER,
139			"XLINE %s %s %s :%s",
140			parv[1], parv[2], parv[3], parv[4]);
141
142			if (match(parv[1], me.name))
143			return;
144
145			if (HasFlag(source_p, FLAGS_SERVICE) \|\| find_matching_name_conf(CONF_ULINE, source_p->servptr->name,
146			source_p->username, source_p->host,
147			SHARED_XLINE))
148			{
149			if ((conf = find_matching_name_conf(CONF_XLINE, parv[2], NULL, NULL, 0)))
150			{
151	michael	3110	sendto_one_notice(source_p, &me, ":[%s] already X-Lined by [%s] - %s",
152			parv[2], conf->name, conf->reason);
153	michael	2974	return;
154			}
155
156			write_xline(source_p, parv[2], parv[4], t_sec);
157			}
158			}
159
160	adx	30	/* mo_xline()
161			*
162			* inputs - pointer to server
163			* - pointer to client
164			* - parameter count
165			* - parameter list
166			* output -
167			* side effects - x line is added
168			*
169			*/
170	michael	2820	static int
171	michael	3156	mo_xline(struct Client source_p, int parc, char parv[])
172	adx	30	{
173			char *reason = NULL;
174			char *gecos = NULL;
175	michael	1632	struct MaskItem *conf = NULL;
176	adx	30	char *target_server = NULL;
177			time_t tkline_time = 0;
178
179	michael	2852	if (!HasOFlag(source_p, OPER_FLAG_XLINE))
180	adx	30	{
181	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "xline");
182	michael	2820	return 0;
183	adx	30	}
184
185			/*
186			* XLINE <gecos> <time> ON <mask> :<reason>
187			* XLINE <gecos> ON <mask> :<reason>
188			*/
189	michael	4274	if (parse_aline("XLINE", source_p, parc, parv, 0, &gecos, NULL,
190	adx	30	&tkline_time, &target_server, &reason) < 0)
191	michael	2820	return 0;
192	adx	30
193	michael	3368	if (target_server)
194	adx	30	{
195			/* if a given expire time is given, ENCAP it */
196	michael	3368	if (tkline_time)
197	adx	30	sendto_match_servs(source_p, target_server, CAP_ENCAP,
198	michael	2820	"ENCAP %s XLINE %d %s 0 :%s",
199			target_server, (int)tkline_time, gecos, reason);
200	adx	30	else
201			sendto_match_servs(source_p, target_server, CAP_CLUSTER,
202	michael	2820	"XLINE %s %s %d :%s",
203			target_server, gecos, (int)tkline_time, reason);
204	adx	30
205			/* Allow ON to apply local xline as well if it matches */
206	michael	1652	if (match(target_server, me.name))
207	michael	2820	return 0;
208	adx	30	}
209	michael	2820	else
210	adx	30	{
211	michael	3368	if (tkline_time)
212	adx	30	cluster_a_line(source_p, "ENCAP", CAP_ENCAP, SHARED_XLINE,
213	michael	2820	"XLINE %d %s 0 :%s", (int)tkline_time, gecos, reason);
214	adx	30	else
215			cluster_a_line(source_p, "XLINE", CAP_KLN, SHARED_XLINE,
216	michael	2820	"%s 0 :%s", gecos, reason);
217	adx	30	}
218
219	michael	4274	if (!valid_xline(source_p, gecos, reason))
220	michael	2820	return 0;
221	adx	30
222	michael	2820	if ((conf = find_matching_name_conf(CONF_XLINE, gecos, NULL, NULL, 0)))
223	adx	30	{
224	michael	3110	sendto_one_notice(source_p, &me, ":[%s] already X-Lined by [%s] - %s",
225			gecos, conf->name, conf->reason);
226	michael	2820	return 0;
227	adx	30	}
228
229			write_xline(source_p, gecos, reason, tkline_time);
230	michael	2820	return 0;
231	adx	30	}
232
233			/* ms_xline()
234			*
235			* inputs - oper, target server, xline, {type}, reason
236			*
237			* outputs - none
238			* side effects - propagates xline, applies it if we are a target
239			*/
240	michael	2820	static int
241	michael	3156	ms_xline(struct Client source_p, int parc, char parv[])
242	adx	30	{
243			if (parc != 5 \|\| EmptyString(parv[4]))
244	michael	2820	return 0;
245	adx	30
246			if (!IsClient(source_p))
247	michael	2820	return 0;
248	adx	30
249	michael	4274	if (!valid_xline(source_p, parv[2], parv[4]))
250	michael	2820	return 0;
251	adx	30
252			relay_xline(source_p, parv);
253	michael	2820	return 0;
254	adx	30	}
255
256			/* me_xline()
257			*
258			* inputs - server
259			* - client (oper)
260			* - parc number of arguments
261			* - parv list of arguments
262			* via parv[]
263	michael	2828	* parv[1] = target server
264			* parv[2] = xline
265			* parv[3] = time
266			* parv[4] = reason
267	adx	30	*
268			* outputs - none
269	michael	2820	* side effects -
270	adx	30	*/
271	michael	2820	static int
272	michael	3156	me_xline(struct Client source_p, int parc, char parv[])
273	adx	30	{
274			if (!IsClient(source_p) \|\| parc != 5)
275	michael	2820	return 0;
276	adx	30
277			relay_xline(source_p, parv);
278	michael	2820	return 0;
279	adx	30	}
280
281	michael	2820	static struct Message xline_msgtab =
282			{
283	michael	1230	"XLINE", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
284			{ m_unregistered, m_not_oper, ms_xline, me_xline, mo_xline, m_ignore }
285			};
286
287			static void
288			module_init(void)
289			{
290			mod_add_cmd(&xline_msgtab);
291			}
292
293			static void
294			module_exit(void)
295			{
296			mod_del_cmd(&xline_msgtab);
297			}
298
299	michael	2820	struct module module_entry =
300			{
301	michael	1230	.node = { NULL, NULL, NULL },
302			.name = NULL,
303			.version = "$Revision$",
304			.handle = NULL,
305			.modinit = module_init,
306			.modexit = module_exit,
307			.flags = 0
308			};