8.2.x/modules/m_away.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2014 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
 *  USA
 */

/*! \file m_away.c
 * \brief Includes required functions for processing the AWAY command.
 * \version $Id$
 */

#include "stdinc.h"
#include "client.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "send.h"
#include "parse.h"
#include "modules.h"
#include "conf.h"
#include "server.h"
#include "user.h"


/*! \brief AWAY 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] = away message
 */
static int
m_away(struct Client *source_p, int parc, char *parv[])
{
  if (parc < 2 || EmptyString(parv[1]))
  {
    /* Marking as not away */
    if (source_p->away[0])
    {
      source_p->away[0] = '\0';

      /* We now send this only if they were away before --is */
      sendto_server(source_p, 0, 0, ":%s AWAY", source_p->id);
      sendto_common_channels_local(source_p, 1, CAP_AWAY_NOTIFY, ":%s!%s@%s AWAY",
                                   source_p->name, source_p->username,
                                   source_p->host);
    }

    sendto_one_numeric(source_p, &me, RPL_UNAWAY);
    return 0;
  }

  if ((source_p->connection->away.last_attempt + ConfigGeneral.away_time) < CurrentTime)
    source_p->connection->away.count = 0;

  if (source_p->connection->away.count > ConfigGeneral.away_count)
  {
    sendto_one_numeric(source_p, &me, ERR_TOOMANYAWAY);
    return 0;
  }

  source_p->connection->away.last_attempt = CurrentTime;
  source_p->connection->away.count++;

  strlcpy(source_p->away, parv[1], sizeof(source_p->away));

  sendto_one_numeric(source_p, &me, RPL_NOWAWAY);
  sendto_common_channels_local(source_p, 1, CAP_AWAY_NOTIFY, ":%s!%s@%s AWAY :%s",
                               source_p->name, source_p->username,
                               source_p->host, source_p->away);
  sendto_server(source_p, 0, 0, ":%s AWAY :%s",
                source_p->id, source_p->away);
  return 0;
}

/*! \brief AWAY 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] = away message
 */
static int
ms_away(struct Client *source_p, int parc, char *parv[])
{
  if (parc < 2 || EmptyString(parv[1]))
  {
    /* Marking as not away */
    if (source_p->away[0])
    {
      source_p->away[0] = '\0';

      /* We now send this only if they were away before --is */
      sendto_server(source_p, 0, 0, ":%s AWAY", source_p->id);
      sendto_common_channels_local(source_p, 1, CAP_AWAY_NOTIFY, ":%s!%s@%s AWAY",
                                   source_p->name, source_p->username,
                                   source_p->host);
    }

    return 0;
  }

  strlcpy(source_p->away, parv[1], sizeof(source_p->away));

  sendto_common_channels_local(source_p, 1, CAP_AWAY_NOTIFY, ":%s!%s@%s AWAY :%s",
                               source_p->name, source_p->username,
                               source_p->host, source_p->away);
  sendto_server(source_p, 0, 0, ":%s AWAY :%s",
                source_p->id, source_p->away);
  return 0;
}

static struct Message away_msgtab =
{
  "AWAY", NULL, 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
  { m_unregistered, m_away, ms_away, m_ignore, m_away, m_ignore }
};

static void
module_init(void)
{
  mod_add_cmd(&away_msgtab);
  add_isupport("AWAYLEN", NULL, AWAYLEN);
}

static void
module_exit(void)
{
  mod_del_cmd(&away_msgtab);
  delete_isupport("AWAYLEN");
}

struct module module_entry =
{
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = 0
};
Revision:	5012
Committed:	Tue Dec 9 17:14:05 2014 UTC (11 years, 7 months ago) by michael
Content type:	text/x-csrc
File size:	5110 byte(s)
Log Message:	- m_away.c:m_away(): don't let /AWAY end the client's flood grace period. Depending on the configuration, some clients instantly set them away right after connecting. AWAY is rate limited anyways.
#	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) 1997-2014 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	michael	4564	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19	adx	30	* USA
20			*/
21
22	michael	2820	/*! \file m_away.c
23			* \brief Includes required functions for processing the AWAY command.
24			* \version $Id$
25			*/
26
27	adx	30	#include "stdinc.h"
28			#include "client.h"
29			#include "irc_string.h"
30			#include "ircd.h"
31			#include "numeric.h"
32			#include "send.h"
33			#include "parse.h"
34			#include "modules.h"
35	michael	1309	#include "conf.h"
36	michael	3347	#include "server.h"
37			#include "user.h"
38	adx	30
39
40	michael	3300	/*! \brief AWAY 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] = away message
50	adx	30	*/
51	michael	2820	static int
52	michael	3156	m_away(struct Client source_p, int parc, char parv[])
53	adx	30	{
54			if (parc < 2 \|\| EmptyString(parv[1]))
55			{
56			/* Marking as not away */
57	michael	1483	if (source_p->away[0])
58	adx	30	{
59	michael	1734	source_p->away[0] = '\0';
60	michael	3874
61			/* We now send this only if they were away before --is */
62	michael	4963	sendto_server(source_p, 0, 0, ":%s AWAY", source_p->id);
63	michael	3874	sendto_common_channels_local(source_p, 1, CAP_AWAY_NOTIFY, ":%s!%s@%s AWAY",
64	michael	1734	source_p->name, source_p->username,
65			source_p->host);
66	adx	30	}
67
68	michael	3109	sendto_one_numeric(source_p, &me, RPL_UNAWAY);
69	michael	2820	return 0;
70	adx	30	}
71
72	michael	4589	if ((source_p->connection->away.last_attempt + ConfigGeneral.away_time) < CurrentTime)
73			source_p->connection->away.count = 0;
74	michael	4314
75	michael	4589	if (source_p->connection->away.count > ConfigGeneral.away_count)
76	michael	1484	{
77	michael	4314	sendto_one_numeric(source_p, &me, ERR_TOOMANYAWAY);
78	michael	2820	return 0;
79	michael	1484	}
80
81	michael	4589	source_p->connection->away.last_attempt = CurrentTime;
82			source_p->connection->away.count++;
83	michael	1734
84	michael	1483	strlcpy(source_p->away, parv[1], sizeof(source_p->away));
85	adx	30
86	michael	4314	sendto_one_numeric(source_p, &me, RPL_NOWAWAY);
87	michael	3874	sendto_common_channels_local(source_p, 1, CAP_AWAY_NOTIFY, ":%s!%s@%s AWAY :%s",
88	michael	1734	source_p->name, source_p->username,
89			source_p->host, source_p->away);
90	michael	4963	sendto_server(source_p, 0, 0, ":%s AWAY :%s",
91	michael	3186	source_p->id, source_p->away);
92	michael	2820	return 0;
93	adx	30	}
94
95	michael	3300	/*! \brief AWAY command handler
96			*
97			* \param source_p Pointer to allocated Client struct from which the message
98			* originally comes from. This can be a local or remote client.
99			* \param parc Integer holding the number of supplied arguments.
100			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
101			* pointers.
102			* \note Valid arguments for this command are:
103			* - parv[0] = command
104			* - parv[1] = away message
105			*/
106	michael	2820	static int
107	michael	3156	ms_away(struct Client source_p, int parc, char parv[])
108	adx	30	{
109			if (parc < 2 \|\| EmptyString(parv[1]))
110			{
111			/* Marking as not away */
112	michael	1483	if (source_p->away[0])
113	adx	30	{
114	michael	1734	source_p->away[0] = '\0';
115	michael	3874
116			/* We now send this only if they were away before --is */
117	michael	4963	sendto_server(source_p, 0, 0, ":%s AWAY", source_p->id);
118	michael	3874	sendto_common_channels_local(source_p, 1, CAP_AWAY_NOTIFY, ":%s!%s@%s AWAY",
119	michael	1734	source_p->name, source_p->username,
120			source_p->host);
121	adx	30	}
122
123	michael	2820	return 0;
124	adx	30	}
125
126	michael	1483	strlcpy(source_p->away, parv[1], sizeof(source_p->away));
127	adx	30
128	michael	3874	sendto_common_channels_local(source_p, 1, CAP_AWAY_NOTIFY, ":%s!%s@%s AWAY :%s",
129	michael	1734	source_p->name, source_p->username,
130			source_p->host, source_p->away);
131	michael	4963	sendto_server(source_p, 0, 0, ":%s AWAY :%s",
132	michael	3186	source_p->id, source_p->away);
133	michael	2820	return 0;
134	adx	30	}
135	michael	1230
136	michael	2820	static struct Message away_msgtab =
137			{
138	michael	4546	"AWAY", NULL, 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
139	michael	1449	{ m_unregistered, m_away, ms_away, m_ignore, m_away, m_ignore }
140	michael	1230	};
141
142			static void
143			module_init(void)
144			{
145			mod_add_cmd(&away_msgtab);
146			add_isupport("AWAYLEN", NULL, AWAYLEN);
147			}
148
149			static void
150			module_exit(void)
151			{
152			mod_del_cmd(&away_msgtab);
153			delete_isupport("AWAYLEN");
154			}
155
156	michael	2820	struct module module_entry =
157			{
158	michael	1230	.node = { NULL, NULL, NULL },
159			.name = NULL,
160			.version = "$Revision$",
161			.handle = NULL,
162			.modinit = module_init,
163			.modexit = module_exit,
164			.flags = 0
165			};