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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2018 linuxdaemon <linuxdaemon.irc@gmail.com>
* Copyright (C) 2013, 2017-2018, 2020-2021 Sadie Powell <sadie@witchery.services>
* Copyright (C) 2012-2013 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
* Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2005, 2008 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2004, 2006, 2010 Craig Edwards <brain@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"
#include "modules/exemption.h"
typedef insp::flat_map<std::string, std::string, irc::insensitive_swo> CensorMap;
class ModuleCensor : public Module
{
CheckExemption::EventProvider exemptionprov;
CensorMap censors;
SimpleUserModeHandler cu;
SimpleChannelModeHandler cc;
public:
ModuleCensor()
: exemptionprov(this)
, cu(this, "u_censor", 'G')
, cc(this, "censor", 'G')
{
}
// format of a config entry is <badword text="shit" replace="poo">
ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE
{
if (!IS_LOCAL(user))
return MOD_RES_PASSTHRU;
switch (target.type)
{
case MessageTarget::TYPE_USER:
{
User* targuser = target.Get<User>();
if (!targuser->IsModeSet(cu))
return MOD_RES_PASSTHRU;
break;
}
case MessageTarget::TYPE_CHANNEL:
{
Channel* targchan = target.Get<Channel>();
if (!targchan->IsModeSet(cc))
return MOD_RES_PASSTHRU;
ModResult result = CheckExemption::Call(exemptionprov, user, targchan, "censor");
if (result == MOD_RES_ALLOW)
return MOD_RES_PASSTHRU;
break;
}
default:
return MOD_RES_PASSTHRU;
}
for (CensorMap::const_iterator index = censors.begin(); index != censors.end(); ++index)
{
size_t censorpos;
while ((censorpos = irc::find(details.text, index->first)) != std::string::npos)
{
if (index->second.empty())
{
const std::string msg = InspIRCd::Format("Your message to this channel contained a banned phrase (%s) and was blocked.", index->first.c_str());
if (target.type == MessageTarget::TYPE_CHANNEL)
user->WriteNumeric(Numerics::CannotSendTo(target.Get<Channel>(), msg));
else
user->WriteNumeric(Numerics::CannotSendTo(target.Get<User>(), msg));
return MOD_RES_DENY;
}
details.text.replace(censorpos, index->first.size(), index->second);
}
}
return MOD_RES_PASSTHRU;
}
void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
{
/*
* reload our config file on rehash - we must destroy and re-allocate the classes
* to call the constructor again and re-read our data.
*/
CensorMap newcensors;
ConfigTagList badwords = ServerInstance->Config->ConfTags("badword");
for (ConfigIter i = badwords.first; i != badwords.second; ++i)
{
ConfigTag* tag = i->second;
const std::string text = tag->getString("text");
if (text.empty())
throw ModuleException("<badword:text> is empty! at " + tag->getTagLocation());
const std::string replace = tag->getString("replace");
newcensors[text] = replace;
}
censors.swap(newcensors);
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Allows the server administrator to define inappropriate phrases that are not allowed to be used in private or channel messages.", VF_VENDOR);
}
};
MODULE_INIT(ModuleCensor)
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