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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2013, 2016-2018 Sadie Powell <sadie@witchery.services>
* Copyright (C) 2012-2013 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
* Copyright (C) 2010 Craig Edwards <brain@inspircd.org>
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2006-2007 Dennis Friis <peavey@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"
/** Adds numerics
* 988 <nick> <servername> :Closed for new connections
* 989 <nick> <servername> :Open for new connections
*/
enum
{
// InspIRCd-specific.
RPL_SERVLOCKON = 988,
RPL_SERVLOCKOFF = 989
};
class CommandLockserv : public Command
{
std::string& locked;
public:
CommandLockserv(Module* Creator, std::string& lock) : Command(Creator, "LOCKSERV", 0, 1), locked(lock)
{
allow_empty_last_param = false;
flags_needed = 'o';
}
CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE
{
if (!locked.empty())
{
user->WriteNotice("The server is already locked.");
return CMD_FAILURE;
}
locked = parameters.empty() ? "Server is temporarily closed. Please try again later." : parameters[0];
user->WriteNumeric(RPL_SERVLOCKON, user->server->GetName(), "Closed for new connections");
ServerInstance->SNO->WriteGlobalSno('a', "Oper %s used LOCKSERV to temporarily disallow new connections", user->nick.c_str());
return CMD_SUCCESS;
}
};
class CommandUnlockserv : public Command
{
std::string& locked;
public:
CommandUnlockserv(Module* Creator, std::string& lock) : Command(Creator, "UNLOCKSERV", 0), locked(lock)
{
flags_needed = 'o';
}
CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE
{
if (locked.empty())
{
user->WriteNotice("The server isn't locked.");
return CMD_FAILURE;
}
locked.clear();
user->WriteNumeric(RPL_SERVLOCKOFF, user->server->GetName(), "Open for new connections");
ServerInstance->SNO->WriteGlobalSno('a', "Oper %s used UNLOCKSERV to allow new connections", user->nick.c_str());
return CMD_SUCCESS;
}
};
class ModuleLockserv : public Module
{
std::string locked;
CommandLockserv lockcommand;
CommandUnlockserv unlockcommand;
public:
ModuleLockserv() : lockcommand(this, locked), unlockcommand(this, locked)
{
}
void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
{
// Emergency way to unlock
if (!status.srcuser)
locked.clear();
}
void OnModuleRehash(User* user, const std::string& param) CXX11_OVERRIDE
{
if (irc::equals(param, "lockserv") && !locked.empty())
locked.clear();
}
ModResult OnUserRegister(LocalUser* user) CXX11_OVERRIDE
{
if (!locked.empty())
{
ServerInstance->Users->QuitUser(user, locked);
return MOD_RES_DENY;
}
return MOD_RES_PASSTHRU;
}
ModResult OnCheckReady(LocalUser* user) CXX11_OVERRIDE
{
return !locked.empty() ? MOD_RES_DENY : MOD_RES_PASSTHRU;
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Provides the LOCKSERV and UNLOCKSERV commands to lock the server and block all incoming connections until unlocked again", VF_VENDOR);
}
};
MODULE_INIT(ModuleLockserv)
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