8.2.x/modules/m_unxline.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 2003-2020 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_unxline.c
 * \brief Includes required functions for processing the UNXLINE 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 "send.h"
#include "server_capab.h"
#include "parse.h"
#include "modules.h"
#include "memory.h"


/* static int remove_tkline_match(const char *host, const char *user)
 *
 * Inputs:      gecos
 * Output:      returns YES on success, NO if no tkline removed.
 * Side effects: Any matching tklines are removed.
 */
static void
xline_remove(struct Client *source_p, const struct aline_ctx *aline)
{
  struct GecosItem *gecos;

  if ((gecos = gecos_find(aline->mask, irccmp)) == NULL)
  {
    if (IsClient(source_p))
      sendto_one_notice(source_p, &me, ":No X-Line for %s", aline->mask);

    return;
  }

  if (gecos->in_database == false)
  {
    if (IsClient(source_p))
      sendto_one_notice(source_p, &me, ":The X-Line for %s is in the configuration file and must be removed by hand",
                        gecos->mask);
    return;
  }

  if (IsClient(source_p))
    sendto_one_notice(source_p, &me, ":X-Line for [%s] is removed", gecos->mask);

  sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
                       "%s has removed the X-Line for: [%s]",
                       get_oper_name(source_p), gecos->mask);
  ilog(LOG_TYPE_RESV, "%s removed X-Line for [%s]",
       get_oper_name(source_p), gecos->mask);

  gecos_delete(gecos, false);
}

/*! \brief UNXLINE 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] = gecos
 *      - parv[2] = "ON"
 *      - parv[3] = target server
 */
static void
mo_unxline(struct Client *source_p, int parc, char *parv[])
{
  struct aline_ctx aline = { .add = false, .simple_mask = true };

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

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

  if (aline.server)
  {
    sendto_match_servs(source_p, aline.server, CAPAB_CLUSTER, "UNXLINE %s %s",
                       aline.server, aline.mask);

    /* Allow ON to apply local unxline as well if it matches */
    if (match(aline.server, me.name))
      return;
  }
  else
    cluster_distribute(source_p, "UNXLINE", CAPAB_CLUSTER, CLUSTER_UNXLINE, "%s", aline.host);

  xline_remove(source_p, &aline);
}

/*! \brief UNXLINE 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
 */
static void
ms_unxline(struct Client *source_p, int parc, char *parv[])
{
  struct aline_ctx aline =
  {
    .add = false,
    .simple_mask = true,
    .mask = parv[2],
    .server = parv[1]
  };

  if (parc != 3 || EmptyString(parv[parc - 1]))
    return;

  sendto_match_servs(source_p, aline.server, CAPAB_CLUSTER, "UNXLINE %s %s",
                     aline.server, aline.mask);

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

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

static struct Message unxline_msgtab =
{
  .cmd = "UNXLINE",
  .args_min = 2,
  .args_max = MAXPARA,
  .handlers[UNREGISTERED_HANDLER] = m_unregistered,
  .handlers[CLIENT_HANDLER] = m_not_oper,
  .handlers[SERVER_HANDLER] = ms_unxline,
  .handlers[ENCAP_HANDLER] = m_ignore,
  .handlers[OPER_HANDLER] = mo_unxline
};

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

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

struct module module_entry =
{
  .version = "$Revision$",
  .modinit = module_init,
  .modexit = module_exit,
};
Revision:	9102
Committed:	Wed Jan 1 09:58:57 2020 UTC (5 years, 7 months ago) by michael
Content type:	text/x-csrc
File size:	5519 byte(s)
Log Message:	- Bump copyright years everywhere
#	User	Rev	Content
1	michael	3352	/*
2			* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3			*
4	michael	9102	* Copyright (c) 2003-2020 ircd-hybrid development team
5	michael	3352	*
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	michael	3352	* USA
20			*/
21
22			/*! \file m_unxline.c
23			* \brief Includes required functions for processing the UNXLINE command.
24	michael	3353	* \version $Id$
25	michael	3352	*/
26
27			#include "stdinc.h"
28			#include "list.h"
29			#include "client.h"
30			#include "irc_string.h"
31			#include "ircd.h"
32			#include "conf.h"
33	michael	7208	#include "conf_cluster.h"
34	michael	7303	#include "conf_gecos.h"
35	michael	7208	#include "conf_shared.h"
36	michael	3352	#include "numeric.h"
37			#include "log.h"
38			#include "send.h"
39	michael	8165	#include "server_capab.h"
40	michael	3352	#include "parse.h"
41			#include "modules.h"
42			#include "memory.h"
43
44
45			/* static int remove_tkline_match(const char host, const char user)
46			*
47			* Inputs: gecos
48			* Output: returns YES on success, NO if no tkline removed.
49			* Side effects: Any matching tklines are removed.
50			*/
51	michael	8678	static void
52	michael	8985	xline_remove(struct Client source_p, const struct aline_ctx aline)
53	michael	3352	{
54	michael	7303	struct GecosItem *gecos;
55	michael	3352
56	michael	8679	if ((gecos = gecos_find(aline->mask, irccmp)) == NULL)
57	michael	3352	{
58	michael	8678	if (IsClient(source_p))
59	michael	8679	sendto_one_notice(source_p, &me, ":No X-Line for %s", aline->mask);
60	michael	8678
61			return;
62	michael	3352	}
63
64	michael	8678	if (gecos->in_database == false)
65	michael	3352	{
66	michael	4645	if (IsClient(source_p))
67	michael	8678	sendto_one_notice(source_p, &me, ":The X-Line for %s is in the configuration file and must be removed by hand",
68			gecos->mask);
69			return;
70			}
71	michael	4889
72	michael	8678	if (IsClient(source_p))
73			sendto_one_notice(source_p, &me, ":X-Line for [%s] is removed", gecos->mask);
74
75			sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
76			"%s has removed the X-Line for: [%s]",
77			get_oper_name(source_p), gecos->mask);
78			ilog(LOG_TYPE_RESV, "%s removed X-Line for [%s]",
79			get_oper_name(source_p), gecos->mask);
80
81	michael	8971	gecos_delete(gecos, false);
82	michael	3352	}
83
84	michael	3363	/*! \brief UNXLINE command handler
85	michael	3352	*
86	michael	3363	* \param source_p Pointer to allocated Client struct from which the message
87			* originally comes from. This can be a local or remote client.
88			* \param parc Integer holding the number of supplied arguments.
89			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
90			* pointers.
91			* \note Valid arguments for this command are:
92			* - parv[0] = command
93	michael	3365	* - parv[1] = gecos
94	michael	3363	* - parv[2] = "ON"
95			* - parv[3] = target server
96	michael	3352	*/
97	michael	9078	static void
98	michael	3352	mo_unxline(struct Client source_p, int parc, char parv[])
99			{
100	michael	8679	struct aline_ctx aline = { .add = false, .simple_mask = true };
101	michael	3352
102			if (!HasOFlag(source_p, OPER_FLAG_UNXLINE))
103			{
104			sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "unxline");
105	michael	9078	return;
106	michael	3352	}
107
108	michael	8669	if (parse_aline("UNXLINE", source_p, parc, parv, &aline) == false)
109	michael	9078	return;
110	michael	3352
111	michael	8669	if (aline.server)
112	michael	3352	{
113	michael	8669	sendto_match_servs(source_p, aline.server, CAPAB_CLUSTER, "UNXLINE %s %s",
114	michael	8679	aline.server, aline.mask);
115	michael	3352
116			/* Allow ON to apply local unxline as well if it matches */
117	michael	8669	if (match(aline.server, me.name))
118	michael	9078	return;
119	michael	3352	}
120			else
121	michael	8669	cluster_distribute(source_p, "UNXLINE", CAPAB_CLUSTER, CLUSTER_UNXLINE, "%s", aline.host);
122	michael	3352
123	michael	8678	xline_remove(source_p, &aline);
124	michael	3352	}
125
126	michael	3363	/*! \brief UNXLINE command handler
127	michael	3352	*
128	michael	3363	* \param source_p Pointer to allocated Client struct from which the message
129			* originally comes from. This can be a local or remote client.
130			* \param parc Integer holding the number of supplied arguments.
131			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
132			* pointers.
133			* \note Valid arguments for this command are:
134			* - parv[0] = command
135	michael	7096	* - parv[1] = target server mask
136	michael	3791	* - parv[2] = gecos
137	michael	3352	*/
138	michael	9078	static void
139	michael	3352	ms_unxline(struct Client source_p, int parc, char parv[])
140			{
141	michael	8669	struct aline_ctx aline =
142			{
143			.add = false,
144	michael	8679	.simple_mask = true,
145			.mask = parv[2],
146			.server = parv[1]
147	michael	8669	};
148
149			if (parc != 3 \|\| EmptyString(parv[parc - 1]))
150	michael	9078	return;
151	michael	3352
152	michael	8669	sendto_match_servs(source_p, aline.server, CAPAB_CLUSTER, "UNXLINE %s %s",
153	michael	8679	aline.server, aline.mask);
154	michael	3352
155	michael	8669	if (match(aline.server, me.name))
156	michael	9078	return;
157	michael	3352
158	michael	3368	if (HasFlag(source_p, FLAGS_SERVICE) \|\|
159	michael	7208	shared_find(SHARED_UNXLINE, source_p->servptr->name,
160			source_p->username, source_p->host))
161	michael	8678	xline_remove(source_p, &aline);
162	michael	3352	}
163
164			static struct Message unxline_msgtab =
165			{
166	michael	5880	.cmd = "UNXLINE",
167			.args_min = 2,
168			.args_max = MAXPARA,
169			.handlers[UNREGISTERED_HANDLER] = m_unregistered,
170			.handlers[CLIENT_HANDLER] = m_not_oper,
171			.handlers[SERVER_HANDLER] = ms_unxline,
172			.handlers[ENCAP_HANDLER] = m_ignore,
173			.handlers[OPER_HANDLER] = mo_unxline
174	michael	3352	};
175
176			static void
177			module_init(void)
178			{
179			mod_add_cmd(&unxline_msgtab);
180			}
181
182			static void
183			module_exit(void)
184			{
185			mod_del_cmd(&unxline_msgtab);
186			}
187
188			struct module module_entry =
189			{
190	michael	3353	.version = "$Revision$",
191	michael	3352	.modinit = module_init,
192			.modexit = module_exit,
193			};