/* * InspIRCd -- Internet Relay Chat Daemon * * Copyright (C) 2009 Daniel De Graaf * Copyright (C) 2008 Pippijn van Steenhoven * Copyright (C) 2007 Dennis Friis * Copyright (C) 2005, 2007 Robin Burchell * Copyright (C) 2005-2006 Craig Edwards * Copyright (C) 2006 Oliver Lupton * * 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 . */ #include "inspircd.h" /* * 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; ChanModeReference& nokicksmode; public: unsigned int protectedrank; RemoveBase(Module* Creator, bool& snk, ChanModeReference& nkm, const char* cmdn) : Command(Creator, cmdn, 2, 3) , supportnokicks(snk) , nokicksmode(nkm) { } CmdResult HandleRMB(const std::vector& parameters, User *user, bool fpart) { User* target; Channel* channel; std::string reason; // If the command is a /REMOVE then detect the parameter order bool neworder = ((fpart) || (parameters[0][0] == '#')); /* 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 [reason ...] * /fpart [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 */ if (IS_LOCAL(user)) target = ServerInstance->FindNickOnly(username); else 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(Numerics::NoSuchNick(channel ? username.c_str() : channame.c_str())); return CMD_FAILURE; } if (!channel->HasUser(target)) { user->WriteNotice(InspIRCd::Format("*** The user %s is not on channel %s", target->nick.c_str(), channel->name.c_str())); return CMD_FAILURE; } if (target->server->IsULine()) { user->WriteNumeric(482, channame, "Only a u-line may remove a u-line from a channel."); 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) || (!channel->IsModeSet(nokicksmode))) { /* 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 people with >= protectedrank rank. */ unsigned int ulevel = channel->GetPrefixValue(user); unsigned int tlevel = channel->GetPrefixValue(target); if ((!IS_LOCAL(user)) || ((ulevel > VOICE_VALUE) && (ulevel >= tlevel) && ((protectedrank == 0) || (tlevel < protectedrank)))) { // REMOVE 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)) { // Send an ENCAP REMOVE with parameters being in the old order which is // compatible with both 2.0 and 2.2. This also turns FPART into REMOVE. std::vector p; p.push_back(target->uuid); p.push_back(channel->name); if (parameters.size() > 2) p.push_back(":" + parameters[2]); ServerInstance->PI->SendEncapsulatedData(target->server->GetName(), "REMOVE", p, user); 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->WriteNotice(InspIRCd::Format("*** You do not have access to /remove %s from %s", target->nick.c_str(), channel->name.c_str())); return CMD_FAILURE; } } else { /* m_nokicks.so was loaded and +Q was set, block! */ user->WriteNumeric(ERR_RESTRICTED, channel->name, InspIRCd::Format("Can't remove user %s from channel (nokicks mode is set)", target->nick.c_str())); return CMD_FAILURE; } return CMD_SUCCESS; } }; /** Handle /REMOVE */ class CommandRemove : public RemoveBase { public: CommandRemove(Module* Creator, bool& snk, ChanModeReference& nkm) : RemoveBase(Creator, snk, nkm, "REMOVE") { syntax = " []"; TRANSLATE3(TR_NICK, TR_TEXT, TR_TEXT); } CmdResult Handle (const std::vector& parameters, User *user) { return HandleRMB(parameters, user, false); } }; /** Handle /FPART */ class CommandFpart : public RemoveBase { public: CommandFpart(Module* Creator, bool& snk, ChanModeReference& nkm) : RemoveBase(Creator, snk, nkm, "FPART") { syntax = " []"; TRANSLATE3(TR_TEXT, TR_NICK, TR_TEXT); } CmdResult Handle (const std::vector& parameters, User *user) { return HandleRMB(parameters, user, true); } }; class ModuleRemove : public Module { ChanModeReference nokicksmode; CommandRemove cmd1; CommandFpart cmd2; bool supportnokicks; public: ModuleRemove() : nokicksmode(this, "nokick") , cmd1(this, supportnokicks, nokicksmode) , cmd2(this, supportnokicks, nokicksmode) { } void On005Numeric(std::map& tokens) CXX11_OVERRIDE { tokens["REMOVE"]; } void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE { ConfigTag* tag = ServerInstance->Config->ConfValue("remove"); supportnokicks = tag->getBool("supportnokicks"); cmd1.protectedrank = cmd2.protectedrank = tag->getInt("protectedrank", 50000); } 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)