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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
* Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2005, 2007 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2005-2006 Craig Edwards <craigedwards@brainbox.cc>
* Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
*
* 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 a /remove command, this is mostly an alternative to /kick, except makes users appear to have parted the channel */
/*
* This module supports the use of the +q and +a usermodes, but should work without them too.
* Usage of the command is restricted to +hoaq, and you cannot remove a user with a "higher" level than yourself.
* eg: +h can remove +hv and users with no modes. +a can remove +aohv and users with no modes.
*/
/** Base class for /FPART and /REMOVE
*/
class RemoveBase : public Command
{
bool& supportnokicks;
public:
RemoveBase(Module* Creator, bool& snk, const char* cmdn)
: Command(Creator, cmdn, 2, 3), supportnokicks(snk)
{
}
CmdResult HandleRMB(const std::vector<std::string>& parameters, User *user, bool neworder)
{
User* target;
Channel* channel;
std::string reason;
std::string protectkey;
std::string founderkey;
bool hasnokicks;
/* Set these to the parameters needed, the new version of this module switches it's parameters around
* supplying a new command with the new order while keeping the old /remove with the older order.
* /remove <nick> <channel> [reason ...]
* /fpart <channel> <nick> [reason ...]
*/
const std::string& channame = parameters[neworder ? 0 : 1];
const std::string& username = parameters[neworder ? 1 : 0];
/* Look up the user we're meant to be removing from the channel */
target = ServerInstance->FindNick(username);
/* And the channel we're meant to be removing them from */
channel = ServerInstance->FindChan(channame);
/* Fix by brain - someone needs to learn to validate their input! */
if ((!target) || (target->registered != REG_ALL) || (!channel))
{
user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel", user->nick.c_str(), !channel ? channame.c_str() : username.c_str());
return CMD_FAILURE;
}
if (!channel->HasUser(target))
{
user->WriteServ( "NOTICE %s :*** The user %s is not on channel %s", user->nick.c_str(), target->nick.c_str(), channel->name.c_str());
return CMD_FAILURE;
}
int ulevel = channel->GetPrefixValue(user);
int tlevel = channel->GetPrefixValue(target);
hasnokicks = (ServerInstance->Modules->Find("m_nokicks.so") && channel->IsModeSet('Q'));
if (ServerInstance->ULine(target->server))
{
user->WriteNumeric(482, "%s %s :Only a u-line may remove a u-line from a channel.", user->nick.c_str(), channame.c_str());
return CMD_FAILURE;
}
/* We support the +Q channel mode via. the m_nokicks module, if the module is loaded and the mode is set then disallow the /remove */
if ((!IS_LOCAL(user)) || (!supportnokicks || !hasnokicks))
{
/* We'll let everyone remove their level and below, eg:
* ops can remove ops, halfops, voices, and those with no mode (no moders actually are set to 1)
* a ulined target will get a higher level than it's possible for a /remover to get..so they're safe.
* Nobody may remove a founder.
*/
if ((!IS_LOCAL(user)) || ((ulevel > VOICE_VALUE) && (ulevel >= tlevel) && (tlevel != 50000)))
{
// REMOVE/FPART will be sent to the target's server and it will reply with a PART (or do nothing if it doesn't understand the command)
if (!IS_LOCAL(target))
return CMD_SUCCESS;
std::string reasonparam;
/* If a reason is given, use it */
if(parameters.size() > 2)
reasonparam = parameters[2];
else
reasonparam = "No reason given";
/* Build up the part reason string. */
reason = "Removed by " + user->nick + ": " + reasonparam;
channel->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s removed %s from the channel", channel->name.c_str(), user->nick.c_str(), target->nick.c_str());
target->WriteNotice("*** " + user->nick + " removed you from " + channel->name + " with the message: " + reasonparam);
channel->PartUser(target, reason);
}
else
{
user->WriteServ( "NOTICE %s :*** You do not have access to /remove %s from %s", user->nick.c_str(), target->nick.c_str(), channel->name.c_str());
return CMD_FAILURE;
}
}
else
{
/* m_nokicks.so was loaded and +Q was set, block! */
user->WriteServ( "484 %s %s :Can't remove user %s from channel (+Q set)", user->nick.c_str(), channel->name.c_str(), target->nick.c_str());
return CMD_FAILURE;
}
return CMD_SUCCESS;
}
RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters) = 0;
};
/** Handle /REMOVE
*/
class CommandRemove : public RemoveBase
{
public:
CommandRemove(Module* Creator, bool& snk)
: RemoveBase(Creator, snk, "REMOVE")
{
syntax = "<nick> <channel> [<reason>]";
TRANSLATE3(TR_NICK, TR_TEXT, TR_TEXT);
}
CmdResult Handle (const std::vector<std::string>& parameters, User *user)
{
return HandleRMB(parameters, user, false);
}
RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
{
User* dest = ServerInstance->FindNick(parameters[0]);
if (dest)
return ROUTE_OPT_UCAST(dest->server);
return ROUTE_LOCALONLY;
}
};
/** Handle /FPART
*/
class CommandFpart : public RemoveBase
{
public:
CommandFpart(Module* Creator, bool& snk)
: RemoveBase(Creator, snk, "FPART")
{
syntax = "<channel> <nick> [<reason>]";
TRANSLATE3(TR_TEXT, TR_NICK, TR_TEXT);
}
CmdResult Handle (const std::vector<std::string>& parameters, User *user)
{
return HandleRMB(parameters, user, true);
}
RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
{
User* dest = ServerInstance->FindNick(parameters[1]);
if (dest)
return ROUTE_OPT_UCAST(dest->server);
return ROUTE_LOCALONLY;
}
};
class ModuleRemove : public Module
{
CommandRemove cmd1;
CommandFpart cmd2;
bool supportnokicks;
public:
ModuleRemove() : cmd1(this, supportnokicks), cmd2(this, supportnokicks)
{
}
void init() CXX11_OVERRIDE
{
ServerInstance->Modules->AddService(cmd1);
ServerInstance->Modules->AddService(cmd2);
OnRehash(NULL);
Implementation eventlist[] = { I_On005Numeric, I_OnRehash };
ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
}
void On005Numeric(std::map<std::string, std::string>& tokens) CXX11_OVERRIDE
{
tokens["REMOVE"];
}
void OnRehash(User* user) CXX11_OVERRIDE
{
supportnokicks = ServerInstance->Config->ConfValue("remove")->getBool("supportnokicks");
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Provides a /remove command, this is mostly an alternative to /kick, except makes users appear to have parted the channel", VF_OPTCOMMON | VF_VENDOR);
}
};
MODULE_INIT(ModuleRemove)
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