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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2004, 2006 Craig Edwards <craigedwards@brainbox.cc>
*
* 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"
/* $ModDesc: Provides support for channel mode +N & extban +b N: which prevents nick changes on channel */
class NoNicks : public ModeHandler
{
public:
NoNicks(Module* Creator) : ModeHandler(Creator, "nonick", 'N', PARAM_NONE, MODETYPE_CHANNEL) { }
ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding)
{
if (adding)
{
if (!channel->IsModeSet('N'))
{
channel->SetMode('N',true);
return MODEACTION_ALLOW;
}
}
else
{
if (channel->IsModeSet('N'))
{
channel->SetMode('N',false);
return MODEACTION_ALLOW;
}
}
return MODEACTION_DENY;
}
};
class ModuleNoNickChange : public Module
{
NoNicks nn;
bool override;
public:
ModuleNoNickChange() : nn(this)
{
OnRehash(NULL);
ServerInstance->Modes->AddMode(&nn);
Implementation eventlist[] = { I_OnUserPreNick, I_On005Numeric, I_OnRehash };
ServerInstance->Modules->Attach(eventlist, this, 3);
}
virtual ~ModuleNoNickChange()
{
}
virtual Version GetVersion()
{
return Version("Provides support for channel mode +N & extban +b N: which prevents nick changes on channel", VF_VENDOR);
}
virtual void On005Numeric(std::string &output)
{
ServerInstance->AddExtBanChar('N');
}
virtual ModResult OnUserPreNick(User* user, const std::string &newnick)
{
if (!IS_LOCAL(user))
return MOD_RES_PASSTHRU;
// Allow forced nick changes.
if (ServerInstance->NICKForced.get(user))
return MOD_RES_PASSTHRU;
for (UCListIter i = user->chans.begin(); i != user->chans.end(); i++)
{
Channel* curr = *i;
ModResult res = ServerInstance->OnCheckExemption(user,curr,"nonick");
if (res == MOD_RES_ALLOW)
continue;
if (override && IS_OPER(user))
continue;
if (!curr->GetExtBanStatus(user, 'N').check(!curr->IsModeSet('N')))
{
user->WriteNumeric(ERR_CANTCHANGENICK, "%s :Can't change nickname while on %s (+N is set)",
user->nick.c_str(), curr->name.c_str());
return MOD_RES_DENY;
}
}
return MOD_RES_PASSTHRU;
}
virtual void OnRehash(User* user)
{
ConfigReader Conf;
override = Conf.ReadFlag("nonicks", "operoverride", "no", 0);
}
};
MODULE_INIT(ModuleNoNickChange)
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