trunk/modules/m_topic.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2017 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_topic.c
 * \brief Includes required functions for processing the TOPIC command.
 * \version $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "channel.h"
#include "channel_mode.h"
#include "client.h"
#include "conf.h"
#include "hash.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "send.h"
#include "parse.h"
#include "modules.h"
#include "packet.h"


/*! \brief TOPIC 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] = channel name
 *      - parv[2] = topic text, if setting topic (can be an empty string)
 */
static int
m_topic(struct Client *source_p, int parc, char *parv[])
{
  struct Channel *chptr = NULL;

  if (EmptyString(parv[1]))
  {
    sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "TOPIC");
    return 0;
  }

  if (!IsFloodDone(source_p))
    flood_endgrace(source_p);

  if ((chptr = hash_find_channel(parv[1])) == NULL)
  {
    sendto_one_numeric(source_p, &me, ERR_NOSUCHCHANNEL, parv[1]);
    return 0;
  }

  /* setting topic */
  if (parc > 2)
  {
    const struct Membership *member = NULL;

    if ((member = find_channel_link(source_p, chptr)) == NULL)
    {
      sendto_one_numeric(source_p, &me, ERR_NOTONCHANNEL, chptr->name);
      return 0;
    }

    if (!HasCMode(chptr, MODE_TOPICLIMIT) ||
        has_member_flags(member, CHFL_CHANOP | CHFL_HALFOP))
    {
      char topic_info[NICKLEN + USERLEN + HOSTLEN + 3];  /* +3 for !, @, \0 */

      snprintf(topic_info, sizeof(topic_info), "%s!%s@%s", source_p->name,
               source_p->username, source_p->host);
      channel_set_topic(chptr, parv[2], topic_info, CurrentTime, 1);

      sendto_server(source_p, 0, 0, ":%s TOPIC %s :%s",
                    source_p->id, chptr->name,
                    chptr->topic);
      sendto_channel_local(NULL, chptr, 0, 0, 0, ":%s!%s@%s TOPIC %s :%s",
                           source_p->name,
                           source_p->username,
                           source_p->host,
                           chptr->name, chptr->topic);
    }
    else
      sendto_one_numeric(source_p, &me, ERR_CHANOPRIVSNEEDED, chptr->name);
  }
  else /* only asking for topic */
  {
    if (!SecretChannel(chptr) || IsMember(source_p, chptr))
    {
      if (chptr->topic[0] == '\0')
        sendto_one_numeric(source_p, &me, RPL_NOTOPIC, chptr->name);
      else
      {
        sendto_one_numeric(source_p, &me, RPL_TOPIC,
                           chptr->name, chptr->topic);
        sendto_one_numeric(source_p, &me, RPL_TOPICWHOTIME, chptr->name,
                           chptr->topic_info,
                           chptr->topic_time);
      }
    }
    else
      sendto_one_numeric(source_p, &me, ERR_NOTONCHANNEL, chptr->name);
  }

  return 0;
}


/*! \brief TOPIC 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] = channel name
 *      - parv[2] = topic text (can be an empty string)
 */
static int
ms_topic(struct Client *source_p, int parc, char *parv[])
{
  struct Channel *chptr = NULL;
  char topic_info[NICKLEN + USERLEN + HOSTLEN + 3];  /* +3 for !, @, \0 */

  if (parc < 3)
  {
    sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "TOPIC");
    return 0;
  }

  if ((chptr = hash_find_channel(parv[1])) == NULL)
  {
    sendto_one_numeric(source_p, &me, ERR_NOSUCHCHANNEL, parv[1]);
    return 0;
  }

  if (!IsClient(source_p))
    strlcpy(topic_info, source_p->name, sizeof(topic_info));
  else
    snprintf(topic_info, sizeof(topic_info), "%s!%s@%s", source_p->name,
             source_p->username, source_p->host);
  channel_set_topic(chptr, parv[2], topic_info, CurrentTime, 0);

  sendto_server(source_p, 0, 0, ":%s TOPIC %s :%s",
                source_p->id, chptr->name,
                chptr->topic);

  if (!IsClient(source_p))
    sendto_channel_local(NULL, chptr, 0, 0, 0, ":%s TOPIC %s :%s",
                         (IsHidden(source_p) || ConfigServerHide.hide_servers) ? me.name : source_p->name,
                         chptr->name, chptr->topic);

  else
    sendto_channel_local(NULL, chptr, 0, 0, 0, ":%s!%s@%s TOPIC %s :%s",
                         source_p->name,
                         source_p->username,
                         source_p->host,
                         chptr->name, chptr->topic);
  return 0;
}


static struct Message topic_msgtab =
{
  .cmd = "TOPIC",
  .args_min = 2,
  .args_max = MAXPARA,
  .handlers[UNREGISTERED_HANDLER] = m_unregistered,
  .handlers[CLIENT_HANDLER] = m_topic,
  .handlers[SERVER_HANDLER] = ms_topic,
  .handlers[ENCAP_HANDLER] = m_ignore,
  .handlers[OPER_HANDLER] = m_topic
};

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

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

struct module module_entry =
{
  .version = "$Revision$",
  .modinit = module_init,
  .modexit = module_exit,
};
Revision:	8044
Committed:	Sat Mar 18 16:52:10 2017 UTC (9 years, 4 months ago) by michael
Content type:	text/x-csrc
File size:	6469 byte(s)
Log Message:	- Add chptr->mode.mode manipulation macros
#	User	Rev	Content
1	adx	30	/*
2	michael	2820	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	adx	30	*
4	michael	7924	* Copyright (c) 1997-2017 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_topic.c
23			* \brief Includes required functions for processing the TOPIC command.
24			* \version $Id$
25			*/
26
27	adx	30	#include "stdinc.h"
28	michael	1011	#include "list.h"
29	adx	30	#include "channel.h"
30			#include "channel_mode.h"
31			#include "client.h"
32	michael	5538	#include "conf.h"
33	adx	30	#include "hash.h"
34			#include "irc_string.h"
35			#include "ircd.h"
36			#include "numeric.h"
37			#include "send.h"
38			#include "parse.h"
39			#include "modules.h"
40			#include "packet.h"
41
42
43	michael	3332	/*! \brief TOPIC command handler
44			*
45			* \param source_p Pointer to allocated Client struct from which the message
46			* originally comes from. This can be a local or remote client.
47			* \param parc Integer holding the number of supplied arguments.
48			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
49			* pointers.
50			* \note Valid arguments for this command are:
51			* - parv[0] = command
52			* - parv[1] = channel name
53	michael	7090	* - parv[2] = topic text, if setting topic (can be an empty string)
54	adx	30	*/
55	michael	2820	static int
56	michael	3156	m_topic(struct Client source_p, int parc, char parv[])
57	adx	30	{
58			struct Channel *chptr = NULL;
59
60	michael	885	if (EmptyString(parv[1]))
61	adx	30	{
62	michael	3109	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "TOPIC");
63	michael	2820	return 0;
64	adx	30	}
65
66	michael	1799	if (!IsFloodDone(source_p))
67	adx	30	flood_endgrace(source_p);
68
69	michael	895	if ((chptr = hash_find_channel(parv[1])) == NULL)
70	adx	30	{
71	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOSUCHCHANNEL, parv[1]);
72	michael	2820	return 0;
73	michael	895	}
74
75			/* setting topic */
76			if (parc > 2)
77			{
78	michael	4815	const struct Membership *member = NULL;
79	michael	895
80	michael	4815	if ((member = find_channel_link(source_p, chptr)) == NULL)
81	adx	30	{
82	michael	4618	sendto_one_numeric(source_p, &me, ERR_NOTONCHANNEL, chptr->name);
83	michael	2820	return 0;
84	adx	30	}
85
86	michael	8044	if (!HasCMode(chptr, MODE_TOPICLIMIT) \|\|
87			has_member_flags(member, CHFL_CHANOP \| CHFL_HALFOP))
88	adx	30	{
89	michael	6932	char topic_info[NICKLEN + USERLEN + HOSTLEN + 3]; /* +3 for !, @, \0 */
90	michael	885
91	michael	1203	snprintf(topic_info, sizeof(topic_info), "%s!%s@%s", source_p->name,
92			source_p->username, source_p->host);
93	michael	3941	channel_set_topic(chptr, parv[2], topic_info, CurrentTime, 1);
94	adx	30
95	michael	4962	sendto_server(source_p, 0, 0, ":%s TOPIC %s :%s",
96	michael	4618	source_p->id, chptr->name,
97	michael	1203	chptr->topic);
98	michael	6759	sendto_channel_local(NULL, chptr, 0, 0, 0, ":%s!%s@%s TOPIC %s :%s",
99	michael	895	source_p->name,
100			source_p->username,
101			source_p->host,
102	michael	4618	chptr->name, chptr->topic);
103	adx	30	}
104	michael	895	else
105	michael	4618	sendto_one_numeric(source_p, &me, ERR_CHANOPRIVSNEEDED, chptr->name);
106	michael	895	}
107			else /* only asking for topic */
108			{
109			if (!SecretChannel(chptr) \|\| IsMember(source_p, chptr))
110	adx	30	{
111	michael	1203	if (chptr->topic[0] == '\0')
112	michael	4618	sendto_one_numeric(source_p, &me, RPL_NOTOPIC, chptr->name);
113	adx	30	else
114			{
115	michael	3109	sendto_one_numeric(source_p, &me, RPL_TOPIC,
116	michael	4618	chptr->name, chptr->topic);
117			sendto_one_numeric(source_p, &me, RPL_TOPICWHOTIME, chptr->name,
118	michael	3109	chptr->topic_info,
119			chptr->topic_time);
120	adx	30	}
121			}
122			else
123	michael	4618	sendto_one_numeric(source_p, &me, ERR_NOTONCHANNEL, chptr->name);
124	adx	30	}
125	michael	2820
126			return 0;
127	adx	30	}
128	michael	1230
129	michael	3332
130			/*! \brief TOPIC command handler
131			*
132			* \param source_p Pointer to allocated Client struct from which the message
133			* originally comes from. This can be a local or remote client.
134			* \param parc Integer holding the number of supplied arguments.
135			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
136			* pointers.
137			* \note Valid arguments for this command are:
138			* - parv[0] = command
139			* - parv[1] = channel name
140	michael	7090	* - parv[2] = topic text (can be an empty string)
141	michael	3332	*/
142	michael	2820	static int
143	michael	3156	ms_topic(struct Client source_p, int parc, char parv[])
144	michael	1799	{
145			struct Channel *chptr = NULL;
146	michael	6932	char topic_info[NICKLEN + USERLEN + HOSTLEN + 3]; /* +3 for !, @, \0 */
147	michael	1799
148	michael	7088	if (parc < 3)
149	michael	1799	{
150	michael	3109	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "TOPIC");
151	michael	2820	return 0;
152	michael	1799	}
153
154			if ((chptr = hash_find_channel(parv[1])) == NULL)
155			{
156	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOSUCHCHANNEL, parv[1]);
157	michael	2820	return 0;
158	michael	1799	}
159
160			if (!IsClient(source_p))
161			strlcpy(topic_info, source_p->name, sizeof(topic_info));
162			else
163			snprintf(topic_info, sizeof(topic_info), "%s!%s@%s", source_p->name,
164			source_p->username, source_p->host);
165	michael	3941	channel_set_topic(chptr, parv[2], topic_info, CurrentTime, 0);
166	michael	1799
167	michael	4962	sendto_server(source_p, 0, 0, ":%s TOPIC %s :%s",
168	michael	4618	source_p->id, chptr->name,
169	michael	1799	chptr->topic);
170
171			if (!IsClient(source_p))
172	michael	6759	sendto_channel_local(NULL, chptr, 0, 0, 0, ":%s TOPIC %s :%s",
173	michael	5752	(IsHidden(source_p) \|\| ConfigServerHide.hide_servers) ? me.name : source_p->name,
174	michael	4618	chptr->name, chptr->topic);
175	michael	1799
176			else
177	michael	6759	sendto_channel_local(NULL, chptr, 0, 0, 0, ":%s!%s@%s TOPIC %s :%s",
178	michael	1799	source_p->name,
179			source_p->username,
180			source_p->host,
181	michael	4618	chptr->name, chptr->topic);
182	michael	2820	return 0;
183	michael	1799	}
184
185
186	michael	2820	static struct Message topic_msgtab =
187			{
188	michael	5881	.cmd = "TOPIC",
189			.args_min = 2,
190			.args_max = MAXPARA,
191			.handlers[UNREGISTERED_HANDLER] = m_unregistered,
192			.handlers[CLIENT_HANDLER] = m_topic,
193			.handlers[SERVER_HANDLER] = ms_topic,
194			.handlers[ENCAP_HANDLER] = m_ignore,
195			.handlers[OPER_HANDLER] = m_topic
196	michael	1230	};
197
198			static void
199			module_init(void)
200			{
201			mod_add_cmd(&topic_msgtab);
202			}
203
204			static void
205			module_exit(void)
206			{
207			mod_del_cmd(&topic_msgtab);
208			}
209
210	michael	2820	struct module module_entry =
211			{
212	michael	1230	.version = "$Revision$",
213			.modinit = module_init,
214			.modexit = module_exit,
215			};