8.2.x/modules/m_topic.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_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 "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
 */
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 *ms = NULL;

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

    if (!(chptr->mode.mode & MODE_TOPICLIMIT) ||
        has_member_flags(ms, CHFL_CHANOP|CHFL_HALFOP))
    {
      char topic_info[USERHOST_REPLYLEN];

      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, NOCAPS, NOCAPS, ":%s TOPIC %s :%s",
                    source_p->id, chptr->chname,
                    chptr->topic);
      sendto_channel_local(ALL_MEMBERS, 0,
                           chptr, ":%s!%s@%s TOPIC %s :%s",
                           source_p->name,
                           source_p->username,
                           source_p->host,
                           chptr->chname, chptr->topic);
    }
    else
      sendto_one_numeric(source_p, &me, ERR_CHANOPRIVSNEEDED, chptr->chname);
  }
  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->chname);
      else
      {
        sendto_one_numeric(source_p, &me, RPL_TOPIC,
                           chptr->chname, chptr->topic);
        sendto_one_numeric(source_p, &me, RPL_TOPICWHOTIME, chptr->chname,
                           chptr->topic_info,
                           chptr->topic_time);
      }
    }
    else
      sendto_one_numeric(source_p, &me, ERR_NOTONCHANNEL, chptr->chname);
  }

  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
 */
static int
ms_topic(struct Client *source_p, int parc, char *parv[])
{
  struct Channel *chptr = NULL;
  char topic_info[USERHOST_REPLYLEN];

  if (EmptyString(parv[1]))
  {
    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, NOCAPS, NOCAPS, ":%s TOPIC %s :%s",
                source_p->id, chptr->chname,
                chptr->topic);

  if (!IsClient(source_p))
    sendto_channel_local(ALL_MEMBERS, 0, chptr, ":%s TOPIC %s :%s",
                         source_p->name,
                         chptr->chname, chptr->topic);

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


static struct Message topic_msgtab =
{
  "TOPIC", NULL, 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
  { m_unregistered, m_topic, ms_topic, m_ignore, m_topic, m_ignore }
};

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

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

struct module module_entry =
{
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = 0
};
Revision:	4564
Committed:	Sun Aug 24 10:24:47 2014 UTC (11 years, 11 months ago) by michael
Content type:	text/x-csrc
File size:	6277 byte(s)
Log Message:	- Update GPL 2 license headers
#	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_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			#include "hash.h"
33			#include "irc_string.h"
34			#include "ircd.h"
35			#include "numeric.h"
36			#include "send.h"
37			#include "parse.h"
38			#include "modules.h"
39			#include "packet.h"
40
41
42	michael	3332	/*! \brief TOPIC command handler
43			*
44			* \param source_p Pointer to allocated Client struct from which the message
45			* originally comes from. This can be a local or remote client.
46			* \param parc Integer holding the number of supplied arguments.
47			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
48			* pointers.
49			* \note Valid arguments for this command are:
50			* - parv[0] = command
51			* - parv[1] = channel name
52			* - parv[2] = topic text, if setting topic
53	adx	30	*/
54	michael	2820	static int
55	michael	3156	m_topic(struct Client source_p, int parc, char parv[])
56	adx	30	{
57			struct Channel *chptr = NULL;
58
59	michael	885	if (EmptyString(parv[1]))
60	adx	30	{
61	michael	3109	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "TOPIC");
62	michael	2820	return 0;
63	adx	30	}
64
65	michael	1799	if (!IsFloodDone(source_p))
66	adx	30	flood_endgrace(source_p);
67
68	michael	895	if ((chptr = hash_find_channel(parv[1])) == NULL)
69	adx	30	{
70	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOSUCHCHANNEL, parv[1]);
71	michael	2820	return 0;
72	michael	895	}
73
74			/* setting topic */
75			if (parc > 2)
76			{
77	michael	2520	const struct Membership *ms = NULL;
78	michael	895
79			if ((ms = find_channel_link(source_p, chptr)) == NULL)
80	adx	30	{
81	michael	3220	sendto_one_numeric(source_p, &me, ERR_NOTONCHANNEL, chptr->chname);
82	michael	2820	return 0;
83	adx	30	}
84
85	michael	895	if (!(chptr->mode.mode & MODE_TOPICLIMIT) \|\|
86			has_member_flags(ms, CHFL_CHANOP\|CHFL_HALFOP))
87	adx	30	{
88	michael	2820	char topic_info[USERHOST_REPLYLEN];
89	michael	885
90	michael	1203	snprintf(topic_info, sizeof(topic_info), "%s!%s@%s", source_p->name,
91			source_p->username, source_p->host);
92	michael	3940	channel_set_topic(chptr, parv[2], topic_info, CurrentTime, 1);
93	adx	30
94	michael	3156	sendto_server(source_p, NOCAPS, NOCAPS, ":%s TOPIC %s :%s",
95	michael	3186	source_p->id, chptr->chname,
96	michael	1203	chptr->topic);
97	michael	1011	sendto_channel_local(ALL_MEMBERS, 0,
98	michael	895	chptr, ":%s!%s@%s TOPIC %s :%s",
99			source_p->name,
100			source_p->username,
101			source_p->host,
102	michael	1203	chptr->chname, chptr->topic);
103	adx	30	}
104	michael	895	else
105	michael	3109	sendto_one_numeric(source_p, &me, ERR_CHANOPRIVSNEEDED, chptr->chname);
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	3109	sendto_one_numeric(source_p, &me, RPL_NOTOPIC, chptr->chname);
113	adx	30	else
114			{
115	michael	3109	sendto_one_numeric(source_p, &me, RPL_TOPIC,
116			chptr->chname, chptr->topic);
117			sendto_one_numeric(source_p, &me, RPL_TOPICWHOTIME, chptr->chname,
118			chptr->topic_info,
119			chptr->topic_time);
120	adx	30	}
121			}
122			else
123	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOTONCHANNEL, chptr->chname);
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			* - parv[2] = topic text
141			*/
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			char topic_info[USERHOST_REPLYLEN];
147
148			if (EmptyString(parv[1]))
149			{
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	3940	channel_set_topic(chptr, parv[2], topic_info, CurrentTime, 0);
166	michael	1799
167	michael	3156	sendto_server(source_p, NOCAPS, NOCAPS, ":%s TOPIC %s :%s",
168	michael	3186	source_p->id, chptr->chname,
169	michael	1799	chptr->topic);
170
171			if (!IsClient(source_p))
172			sendto_channel_local(ALL_MEMBERS, 0, chptr, ":%s TOPIC %s :%s",
173			source_p->name,
174			chptr->chname, chptr->topic);
175
176			else
177			sendto_channel_local(ALL_MEMBERS, 0, chptr, ":%s!%s@%s TOPIC %s :%s",
178			source_p->name,
179			source_p->username,
180			source_p->host,
181			chptr->chname, chptr->topic);
182	michael	2820	return 0;
183	michael	1799	}
184
185
186	michael	2820	static struct Message topic_msgtab =
187			{
188	michael	4546	"TOPIC", NULL, 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
189	michael	2820	{ m_unregistered, m_topic, ms_topic, m_ignore, m_topic, m_ignore }
190	michael	1230	};
191
192			static void
193			module_init(void)
194			{
195			mod_add_cmd(&topic_msgtab);
196			}
197
198			static void
199			module_exit(void)
200			{
201			mod_del_cmd(&topic_msgtab);
202			}
203
204	michael	2820	struct module module_entry =
205			{
206	michael	1230	.node = { NULL, NULL, NULL },
207			.name = NULL,
208			.version = "$Revision$",
209			.handle = NULL,
210			.modinit = module_init,
211			.modexit = module_exit,
212			.flags = 0
213			};