trunk/modules/m_webirc.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 2012-2015 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_webirc.c
 * \brief Includes required functions for processing the WEBIRC command.
 * \version $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "client.h"
#include "ircd.h"
#include "send.h"
#include "irc_string.h"
#include "parse.h"
#include "modules.h"
#include "conf.h"
#include "hostmask.h"
#include "user.h"


/*! \brief WEBIRC 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] = password
 *      - parv[2] = fake username (we ignore this)
 *      - parv[3] = fake hostname
 *      - parv[4] = fake ip
 */
static int
mr_webirc(struct Client *source_p, int parc, char *parv[])
{
  struct MaskItem *conf = NULL;
  struct addrinfo hints, *res;

  assert(MyConnect(source_p));

  if (!valid_hostname(parv[3]))
  {
    sendto_one_notice(source_p, &me, ":WEBIRC: Invalid hostname");
    return 0;
  }

  conf = find_address_conf(source_p->host,
                           IsGotId(source_p) ? source_p->username : "webirc",
                           &source_p->connection->ip,
                           source_p->connection->aftype, parv[1]);
  if (conf == NULL || !IsConfClient(conf))
    return 0;

  if (!IsConfWebIRC(conf))
  {
    sendto_one_notice(source_p, &me, ":Not a WEBIRC auth {} block");
    return 0;
  }

  if (EmptyString(conf->passwd))
  {
    sendto_one_notice(source_p, &me, ":WEBIRC auth {} blocks must have a password");
    return 0;
  }

  if (!match_conf_password(parv[1], conf))
  {
    sendto_one_notice(source_p, &me, ":WEBIRC password incorrect");
    return 0;
  }

  memset(&hints, 0, sizeof(hints));

  hints.ai_family   = AF_UNSPEC;
  hints.ai_socktype = SOCK_STREAM;
  hints.ai_flags    = AI_PASSIVE | AI_NUMERICHOST;

  if (getaddrinfo(parv[4], NULL, &hints, &res))
  {
    sendto_one_notice(source_p, &me, ":Invalid WEBIRC IP %s", parv[4]);
    return 0;
  }

  assert(res);

  memcpy(&source_p->connection->ip, res->ai_addr, res->ai_addrlen);
  source_p->connection->ip.ss_len = res->ai_addrlen;
  source_p->connection->ip.ss.ss_family = res->ai_family;
  source_p->connection->aftype = res->ai_family;
  freeaddrinfo(res);

  strlcpy(source_p->sockhost, parv[4], sizeof(source_p->sockhost));
  strlcpy(source_p->host, parv[3], sizeof(source_p->host));

  /* Check dlines now, k-lines will be checked on registration */
  if ((conf = find_dline_conf(&source_p->connection->ip,
                               source_p->connection->aftype)))
  {
    if (!(conf->type == CONF_EXEMPT))
    {
      exit_client(source_p, "D-lined");
      return 0;
    }
  }

  AddUMode(source_p, UMODE_WEBIRC);
  sendto_one_notice(source_p, &me, ":WEBIRC host/IP set to %s %s",
                    parv[3], parv[4]);
  return 0;
}

static struct Message webirc_msgtab =
{
  "WEBIRC", NULL, 0, 0, 5, MAXPARA, MFLG_SLOW, 0,
  { mr_webirc, m_registered, m_ignore, m_ignore, m_registered, m_ignore }
};

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

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

struct module module_entry =
{
  .version = "$Revision$",
  .modinit = module_init,
  .modexit = module_exit,
};
Revision:	5864
Committed:	Tue Apr 28 12:23:30 2015 UTC (10 years, 4 months ago) by michael
Content type:	text/x-csrc
File size:	4354 byte(s)
Log Message:	- Removed useless zero initializers from the module_entry as suggested by Adam
#	User	Rev	Content
1	michael	1262	/*
2	michael	2820	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	michael	1262	*
4	michael	5347	* Copyright (c) 2012-2015 ircd-hybrid development team
5	michael	1262	*
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	michael	1262	* USA
20			*/
21
22	michael	2820	/*! \file m_webirc.c
23			* \brief Includes required functions for processing the WEBIRC command.
24			* \version $Id$
25			*/
26
27	michael	1262	#include "stdinc.h"
28			#include "list.h"
29			#include "client.h"
30			#include "ircd.h"
31			#include "send.h"
32			#include "irc_string.h"
33			#include "parse.h"
34			#include "modules.h"
35	michael	1309	#include "conf.h"
36	michael	1262	#include "hostmask.h"
37	michael	3347	#include "user.h"
38	michael	1262
39
40	michael	3336	/*! \brief WEBIRC command handler
41			*
42			* \param source_p Pointer to allocated Client struct from which the message
43			* originally comes from. This can be a local or remote client.
44			* \param parc Integer holding the number of supplied arguments.
45			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
46			* pointers.
47			* \note Valid arguments for this command are:
48			* - parv[0] = command
49			* - parv[1] = password
50			* - parv[2] = fake username (we ignore this)
51			* - parv[3] = fake hostname
52			* - parv[4] = fake ip
53	michael	1262	*/
54	michael	2820	static int
55	michael	3156	mr_webirc(struct Client source_p, int parc, char parv[])
56	michael	1262	{
57	michael	1632	struct MaskItem *conf = NULL;
58	michael	1262	struct addrinfo hints, *res;
59
60	michael	3156	assert(MyConnect(source_p));
61	michael	1262
62	michael	2700	if (!valid_hostname(parv[3]))
63	michael	1262	{
64	michael	4526	sendto_one_notice(source_p, &me, ":WEBIRC: Invalid hostname");
65	michael	2820	return 0;
66	michael	1262	}
67
68	michael	1632	conf = find_address_conf(source_p->host,
69			IsGotId(source_p) ? source_p->username : "webirc",
70	michael	4588	&source_p->connection->ip,
71			source_p->connection->aftype, parv[1]);
72	michael	1632	if (conf == NULL \|\| !IsConfClient(conf))
73	michael	2820	return 0;
74	michael	1262
75	michael	1715	if (!IsConfWebIRC(conf))
76	michael	1262	{
77	michael	4526	sendto_one_notice(source_p, &me, ":Not a WEBIRC auth {} block");
78	michael	2820	return 0;
79	michael	1262	}
80
81	michael	1632	if (EmptyString(conf->passwd))
82	michael	1262	{
83	michael	4526	sendto_one_notice(source_p, &me, ":WEBIRC auth {} blocks must have a password");
84	michael	2820	return 0;
85	michael	1262	}
86
87	michael	1632	if (!match_conf_password(parv[1], conf))
88	michael	1262	{
89	michael	4526	sendto_one_notice(source_p, &me, ":WEBIRC password incorrect");
90	michael	2820	return 0;
91	michael	1262	}
92
93			memset(&hints, 0, sizeof(hints));
94
95			hints.ai_family = AF_UNSPEC;
96			hints.ai_socktype = SOCK_STREAM;
97			hints.ai_flags = AI_PASSIVE \| AI_NUMERICHOST;
98
99			if (getaddrinfo(parv[4], NULL, &hints, &res))
100			{
101	michael	4526	sendto_one_notice(source_p, &me, ":Invalid WEBIRC IP %s", parv[4]);
102	michael	2820	return 0;
103	michael	1262	}
104
105	michael	3246	assert(res);
106	michael	1262
107	michael	4588	memcpy(&source_p->connection->ip, res->ai_addr, res->ai_addrlen);
108			source_p->connection->ip.ss_len = res->ai_addrlen;
109			source_p->connection->ip.ss.ss_family = res->ai_family;
110			source_p->connection->aftype = res->ai_family;
111	michael	1262	freeaddrinfo(res);
112
113			strlcpy(source_p->sockhost, parv[4], sizeof(source_p->sockhost));
114	michael	2700	strlcpy(source_p->host, parv[3], sizeof(source_p->host));
115	michael	1262
116	michael	5805	/* Check dlines now, k-lines will be checked on registration */
117	michael	4588	if ((conf = find_dline_conf(&source_p->connection->ip,
118			source_p->connection->aftype)))
119	michael	1262	{
120	michael	1636	if (!(conf->type == CONF_EXEMPT))
121	michael	1262	{
122	michael	3171	exit_client(source_p, "D-lined");
123	michael	2820	return 0;
124	michael	1262	}
125			}
126
127	michael	2511	AddUMode(source_p, UMODE_WEBIRC);
128	michael	4526	sendto_one_notice(source_p, &me, ":WEBIRC host/IP set to %s %s",
129	michael	3110	parv[3], parv[4]);
130	michael	2820	return 0;
131	michael	1262	}
132
133	michael	2820	static struct Message webirc_msgtab =
134			{
135	michael	4545	"WEBIRC", NULL, 0, 0, 5, MAXPARA, MFLG_SLOW, 0,
136	michael	2712	{ mr_webirc, m_registered, m_ignore, m_ignore, m_registered, m_ignore }
137	michael	1262	};
138
139			static void
140			module_init(void)
141			{
142			mod_add_cmd(&webirc_msgtab);
143			}
144
145			static void
146			module_exit(void)
147			{
148			mod_del_cmd(&webirc_msgtab);
149			}
150
151	michael	2820	struct module module_entry =
152			{
153	michael	1262	.version = "$Revision$",
154			.modinit = module_init,
155			.modexit = module_exit,
156			};