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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2017-2021, 2023, 2025 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) 2008 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2004 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"
#include "modules/extban.h"
class ModuleNoNickChange final
: public Module
{
private:
CheckExemption::EventProvider exemptionprov;
ExtBan::Acting extban;
SimpleChannelMode nn;
public:
ModuleNoNickChange()
: Module(VF_VENDOR, "Adds channel mode N (nonick) which prevents users from changing their nickname whilst in the channel.")
, exemptionprov(this)
, extban(this, "nonick", 'N')
, nn(this, "nonick", 'N')
{
}
ModResult OnUserPreNick(LocalUser* user, const std::string& newnick) override
{
for (const auto* memb : user->chans)
{
ModResult res = exemptionprov.Check(user, memb->chan, "nonick");
if (res == MOD_RES_ALLOW)
continue;
if (user->HasPrivPermission("channels/ignore-nonicks"))
continue;
bool modeset = memb->chan->IsModeSet(nn);
if (!extban.GetStatus(user, memb->chan).check(!modeset))
{
user->WriteNumeric(ERR_CANTCHANGENICK, INSP_FORMAT("Can't change nickname while on {} ({})", memb->chan->name,
modeset ? INSP_FORMAT("+{} is set", nn.GetModeChar()) : "you're extbanned"));
return MOD_RES_DENY;
}
}
return MOD_RES_PASSTHRU;
}
};
MODULE_INIT(ModuleNoNickChange)
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