summaryrefslogtreecommitdiff
path: root/src/modules/m_deaf.cpp
blob: 3fdd2533eae9c2da8077b10b6fd5c7931aa1759b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
/*
 * InspIRCd -- Internet Relay Chat Daemon
 *
 *   Copyright (C) 2006, 2008 Craig Edwards <craigedwards@brainbox.cc>
 *   Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
 *   Copyright (C) 2006-2007 Dennis Friis <peavey@inspircd.org>
 *
 * This file is part of InspIRCd.  InspIRCd 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, version 2.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */


#include "inspircd.h"

/** User mode +d - filter out channel messages and channel notices
 */
class User_d : public ModeHandler
{
 public:
	User_d(Module* Creator) : ModeHandler(Creator, "deaf", 'd', PARAM_NONE, MODETYPE_USER) { }

	ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding)
	{
		if (adding == dest->IsModeSet(this))
			return MODEACTION_DENY;

		if (adding)
			dest->WriteNotice("*** You have enabled usermode +d, deaf mode. This mode means you WILL NOT receive any messages from any channels you are in. If you did NOT mean to do this, use /mode " + dest->nick + " -d.");

		dest->SetMode(this, adding);
		return MODEACTION_ALLOW;
	}
};

class ModuleDeaf : public Module
{
	User_d m1;
	std::string deaf_bypasschars;
	std::string deaf_bypasschars_uline;

 public:
	ModuleDeaf()
		: m1(this)
	{
	}

	void init() CXX11_OVERRIDE
	{
		ServerInstance->Modules->AddService(m1);
	}

	void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
	{
		ConfigTag* tag = ServerInstance->Config->ConfValue("deaf");
		deaf_bypasschars = tag->getString("bypasschars");
		deaf_bypasschars_uline = tag->getString("bypasscharsuline");
	}

	ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string& text, char status, CUList& exempt_list, MessageType msgtype) CXX11_OVERRIDE
	{
		if (target_type == TYPE_CHANNEL)
		{
			Channel* chan = (Channel*)dest;
			if (chan)
				this->BuildDeafList(msgtype, chan, user, status, text, exempt_list);
		}

		return MOD_RES_PASSTHRU;
	}

	void BuildDeafList(MessageType message_type, Channel* chan, User* sender, char status, const std::string &text, CUList &exempt_list)
	{
		const UserMembList *ulist = chan->GetUsers();
		bool is_a_uline;
		bool is_bypasschar, is_bypasschar_avail;
		bool is_bypasschar_uline, is_bypasschar_uline_avail;

		is_bypasschar = is_bypasschar_avail = is_bypasschar_uline = is_bypasschar_uline_avail = 0;
		if (!deaf_bypasschars.empty())
		{
			is_bypasschar_avail = 1;
			if (deaf_bypasschars.find(text[0], 0) != std::string::npos)
				is_bypasschar = 1;
		}
		if (!deaf_bypasschars_uline.empty())
		{
			is_bypasschar_uline_avail = 1;
			if (deaf_bypasschars_uline.find(text[0], 0) != std::string::npos)
				is_bypasschar_uline = 1;
		}

		/*
		 * If we have no bypasschars_uline in config, and this is a bypasschar (regular)
		 * Than it is obviously going to get through +d, no build required
		 */
		if (!is_bypasschar_uline_avail && is_bypasschar)
			return;

		for (UserMembCIter i = ulist->begin(); i != ulist->end(); i++)
		{
			/* not +d ? */
			if (!i->first->IsModeSet(m1))
				continue; /* deliver message */
			/* matched both U-line only and regular bypasses */
			if (is_bypasschar && is_bypasschar_uline)
				continue; /* deliver message */

			is_a_uline = ServerInstance->ULine(i->first->server);
			/* matched a U-line only bypass */
			if (is_bypasschar_uline && is_a_uline)
				continue; /* deliver message */
			/* matched a regular bypass */
			if (is_bypasschar && !is_a_uline)
				continue; /* deliver message */

			if (status && !strchr(chan->GetAllPrefixChars(i->first), status))
				continue;

			/* don't deliver message! */
			exempt_list.insert(i->first);
		}
	}

	Version GetVersion() CXX11_OVERRIDE
	{
		return Version("Provides usermode +d to block channel messages and channel notices", VF_VENDOR);
	}
};

MODULE_INIT(ModuleDeaf)