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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2019-2023 Sadie Powell <sadie@witchery.services>
* Copyright (C) 2012 Robby <robby@chatbelgie.be>
* Copyright (C) 2012 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2007 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/callerid.h"
#include "modules/ctctags.h"
#include "numerichelper.h"
class ModuleCommonChans final
: public Module
, public CTCTags::EventListener
{
private:
CallerID::API calleridapi;
SimpleUserMode mode;
bool IsExempt(User* source, User* target)
{
if (!target->IsModeSet(mode) || source->SharesChannelWith(target))
return true; // Target doesn't have mode set or shares a common channel.
if (source->HasPrivPermission("users/ignore-commonchans") || source->server->IsService())
return true; // Source is an oper or a service.
if (calleridapi && calleridapi->IsOnAcceptList(source, target))
return true; // Source is on the callerid accept list
return false;
}
ModResult HandleMessage(User* user, const MessageTarget& target)
{
if (target.type != MessageTarget::TYPE_USER)
return MOD_RES_PASSTHRU;
auto* targetuser = target.Get<User>();
if (IsExempt(user, targetuser))
return MOD_RES_PASSTHRU;
user->WriteNumeric(Numerics::CannotSendTo(targetuser, "messages", &mode));
return MOD_RES_DENY;
}
public:
ModuleCommonChans()
: Module(VF_VENDOR, "Adds user mode c (deaf_commonchan) which requires users to have a common channel before they can privately message each other.")
, CTCTags::EventListener(this)
, calleridapi(this)
, mode(this, "deaf_commonchan", 'c')
{
}
ModResult OnUserPreInvite(User* source, User* dest, Channel* channel, time_t timeout) override
{
if (IsExempt(source, dest))
return MOD_RES_PASSTHRU;
source->WriteNumeric(Numerics::CannotSendTo(dest, "invites", &mode));
return MOD_RES_DENY;
}
ModResult OnUserPreMessage(User* user, MessageTarget& target, MessageDetails& details) override
{
return HandleMessage(user, target);
}
ModResult OnUserPreTagMessage(User* user, MessageTarget& target, CTCTags::TagMessageDetails& details) override
{
return HandleMessage(user, target);
}
};
MODULE_INIT(ModuleCommonChans)
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