[solanum.git] / extensions / chm_nonotice.c

/*
 * Solanum: a slightly advanced ircd
 * chm_nonotice: block NOTICEs (+T mode).
 *
 * Copyright (c) 2012 Ariadne Conill <ariadne@dereferenced.org>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice is present in all copies.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "stdinc.h"
#include "modules.h"
#include "hook.h"
#include "client.h"
#include "ircd.h"
#include "send.h"
#include "s_conf.h"
#include "s_user.h"
#include "s_serv.h"
#include "numeric.h"
#include "chmode.h"
#include "messages.h"
#include "inline/stringops.h"

static const char chm_nonotice_desc[] =
	"Adds channel mode +T which blocks notices to the channel.";

static unsigned int mode_nonotice;

static void chm_nonotice_process(void *);

mapi_hfn_list_av1 chm_nonotice_hfnlist[] = {
	{ "privmsg_channel", chm_nonotice_process },
	{ NULL, NULL }
};

static void
chm_nonotice_process(void *data_)
{
	hook_data_privmsg_channel *data = data_;

	/* don't waste CPU if message is already blocked */
	if (data->approved || data->msgtype != MESSAGE_TYPE_NOTICE)
		return;

	/* block all notices except CTCPs; use chm_noctcp to block CTCPs. */
	if (data->chptr->mode.mode & mode_nonotice && *data->text != '\001')
	{
		sendto_one_numeric(data->source_p, ERR_CANNOTSENDTOCHAN, form_str(ERR_CANNOTSENDTOCHAN), data->chptr->chname);
		data->approved = ERR_CANNOTSENDTOCHAN;
		return;
	}
}

static int
_modinit(void)
{
	mode_nonotice = cflag_add('T', chm_simple);
	if (mode_nonotice == 0)
		return -1;

	return 0;
}

static void
_moddeinit(void)
{
	cflag_orphan('T');
}

DECLARE_MODULE_AV2(chm_nonotice, _modinit, _moddeinit, NULL, NULL, chm_nonotice_hfnlist, NULL, NULL, chm_nonotice_desc);
Commit	Line	Data
35940724	1	/*
a6f63a82	2	* Solanum: a slightly advanced ircd
35940724 AC	3	* chm_nonotice: block NOTICEs (+T mode).
35940724 AC	4	*
3fc0499e	5	* Copyright (c) 2012 Ariadne Conill <ariadne@dereferenced.org>
35940724 AC	6	*
	7	* Permission to use, copy, modify, and/or distribute this software for any
	8	* purpose with or without fee is hereby granted, provided that the above
	9	* copyright notice and this permission notice is present in all copies.
	10	*
	11	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	12	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	13	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	14	* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
	15	* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	16	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
	17	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	18	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	19	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
	20	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	21	* POSSIBILITY OF SUCH DAMAGE.
	22	*/
	23
	24	#include "stdinc.h"
	25	#include "modules.h"
	26	#include "hook.h"
	27	#include "client.h"
	28	#include "ircd.h"
	29	#include "send.h"
	30	#include "s_conf.h"
	31	#include "s_user.h"
	32	#include "s_serv.h"
	33	#include "numeric.h"
	34	#include "chmode.h"
bd0d352f	35	#include "messages.h"
35940724 AC	36	#include "inline/stringops.h"
35940724 AC	37
eeabf33a EM	38	static const char chm_nonotice_desc[] =
	39	"Adds channel mode +T which blocks notices to the channel.";
	40
35940724 AC	41	static unsigned int mode_nonotice;
35940724 AC	42
82436efb	43	static void chm_nonotice_process(void *);
35940724 AC	44
35940724 AC	45	mapi_hfn_list_av1 chm_nonotice_hfnlist[] = {
82436efb	46	{ "privmsg_channel", chm_nonotice_process },
35940724 AC	47	{ NULL, NULL }
	48	};
	49
	50	static void
82436efb	51	chm_nonotice_process(void *data_)
35940724	52	{
82436efb EM	53	hook_data_privmsg_channel *data = data_;
82436efb EM	54
35940724 AC	55	/* don't waste CPU if message is already blocked */
	56	if (data->approved \|\| data->msgtype != MESSAGE_TYPE_NOTICE)
	57	return;
	58
0d0f34c3 KB	59	/* block all notices except CTCPs; use chm_noctcp to block CTCPs. */
0d0f34c3 KB	60	if (data->chptr->mode.mode & mode_nonotice && *data->text != '\001')
35940724	61	{
0d0f34c3 KB	62	sendto_one_numeric(data->source_p, ERR_CANNOTSENDTOCHAN, form_str(ERR_CANNOTSENDTOCHAN), data->chptr->chname);
0d0f34c3 KB	63	data->approved = ERR_CANNOTSENDTOCHAN;
35940724 AC	64	return;
	65	}
	66	}
	67
	68	static int
	69	_modinit(void)
	70	{
	71	mode_nonotice = cflag_add('T', chm_simple);
	72	if (mode_nonotice == 0)
	73	return -1;
	74
	75	return 0;
	76	}
	77
	78	static void
	79	_moddeinit(void)
	80	{
	81	cflag_orphan('T');
	82	}
	83
581dad19	84	DECLARE_MODULE_AV2(chm_nonotice, _modinit, _moddeinit, NULL, NULL, chm_nonotice_hfnlist, NULL, NULL, chm_nonotice_desc);