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[solanum.git] / extensions / chm_nonotice.c
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35940724 1/*
a6f63a82 2 * Solanum: a slightly advanced ircd
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3 * chm_nonotice: block NOTICEs (+T mode).
4 *
3fc0499e 5 * Copyright (c) 2012 Ariadne Conill <ariadne@dereferenced.org>
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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"
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36#include "inline/stringops.h"
37
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38static const char chm_nonotice_desc[] =
39 "Adds channel mode +T which blocks notices to the channel.";
40
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41static unsigned int mode_nonotice;
42
82436efb 43static void chm_nonotice_process(void *);
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44
45mapi_hfn_list_av1 chm_nonotice_hfnlist[] = {
82436efb 46 { "privmsg_channel", chm_nonotice_process },
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47 { NULL, NULL }
48};
49
50static void
82436efb 51chm_nonotice_process(void *data_)
35940724 52{
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53 hook_data_privmsg_channel *data = data_;
54
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55 /*
56 * don't waste CPU if message is already blocked, only block notices,
57 * only check messages sourced from local clients (so we don't block services notices)
58 */
59 if (data->approved || data->msgtype != MESSAGE_TYPE_NOTICE || !MyClient(data->source_p))
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60 return;
61
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62 /* block all notices except CTCPs; use chm_noctcp to block CTCPs. */
63 if (data->chptr->mode.mode & mode_nonotice && *data->text != '\001')
35940724 64 {
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65 sendto_one_numeric(data->source_p, ERR_CANNOTSENDTOCHAN, form_str(ERR_CANNOTSENDTOCHAN), data->chptr->chname);
66 data->approved = ERR_CANNOTSENDTOCHAN;
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67 return;
68 }
69}
70
71static int
72_modinit(void)
73{
74 mode_nonotice = cflag_add('T', chm_simple);
75 if (mode_nonotice == 0)
76 return -1;
77
78 return 0;
79}
80
81static void
82_moddeinit(void)
83{
84 cflag_orphan('T');
85}
86
581dad19 87DECLARE_MODULE_AV2(chm_nonotice, _modinit, _moddeinit, NULL, NULL, chm_nonotice_hfnlist, NULL, NULL, chm_nonotice_desc);