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/*
 * InspIRCd -- Internet Relay Chat Daemon
 *
 *   Copyright (C) 2016 Attila Molnar <attilamolnar@hush.com>
 *   Copyright (C) 2013, 2017, 2019 Sadie Powell <sadie@witchery.services>
 *   Copyright (C) 2012, 2018-2019 Robby <robby@chatbelgie.be>
 *   Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
 *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
 *   Copyright (C) 2008, 2010 Craig Edwards <brain@inspircd.org>
 *   Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
 *
 * 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"
#include "modules/ctctags.h"

class ModuleQuietBan
	: public Module
	, public CTCTags::EventListener
{
 private:
	bool notifyuser;

 public:
	ModuleQuietBan()
		: CTCTags::EventListener(this)
	{
	}

	void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
	{
		ConfigTag* tag = ServerInstance->Config->ConfValue("muteban");
		notifyuser = tag->getBool("notifyuser", true);
	}

	Version GetVersion() CXX11_OVERRIDE
	{
		return Version("Provides extban 'm', mute bans", VF_OPTCOMMON|VF_VENDOR);
	}

	ModResult HandleMessage(User* user, const MessageTarget& target, bool& echo_original)
	{
		if (!IS_LOCAL(user) || target.type != MessageTarget::TYPE_CHANNEL)
			return MOD_RES_PASSTHRU;

		Channel* chan = target.Get<Channel>();
		if (chan->GetExtBanStatus(user, 'm') == MOD_RES_DENY && chan->GetPrefixValue(user) < VOICE_VALUE)
		{
			if (!notifyuser)
			{
				echo_original = true;
				return MOD_RES_DENY;
			}

			user->WriteNumeric(Numerics::CannotSendTo(chan, "messages", 'm', "mute"));
			return MOD_RES_DENY;
		}

		return MOD_RES_PASSTHRU;
	}

	ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE
	{
		return HandleMessage(user, target, details.echo_original);
	}

	ModResult OnUserPreTagMessage(User* user, const MessageTarget& target, CTCTags::TagMessageDetails& details) CXX11_OVERRIDE
	{
		return HandleMessage(user, target, details.echo_original);
	}

	void On005Numeric(std::map<std::string, std::string>& tokens) CXX11_OVERRIDE
	{
		tokens["EXTBAN"].push_back('m');
	}
};

MODULE_INIT(ModuleQuietBan)