/* * 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" /* $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 { private: bool& supportnokicks; public: RemoveBase(Module* Creator, bool& snk, const char* cmdn) : Command(Creator, cmdn, 2, 3), supportnokicks(snk) { } CmdResult HandleRMB(const std::vector& parameters, User *user, bool neworder) { const char* channame; const char* username; 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 [reason ...] * /fpart [reason ...] */ channame = parameters[ neworder ? 0 : 1].c_str(); username = parameters[ neworder ? 1 : 0].c_str(); /* 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 || !channel) { user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel", user->nick.c_str(), !target ? username : channame); 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) || ServerInstance->ULine(target->nick.c_str()))){ user->WriteNumeric(482, "%s %s :Only a u-line may remove a u-line from a channel.", user->nick.c_str(), channame); 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))) { // no you can't just go from a std::ostringstream to a std::string, Om. -nenolod // but you can do this, nenolod -brain std::string reasonparam("No reason given"); /* If a reason is given, use it */ if(parameters.size() > 2) { /* Join params 2 ... pcnt - 1 (inclusive) into one */ irc::stringjoiner reason_join(" ", parameters, 2, parameters.size() - 1); reasonparam = reason_join.GetJoined(); } /* Build up the part reason string. */ reason = std::string("Removed by ") + user->nick + ": " + reasonparam; channel->WriteChannelWithServ(ServerInstance->Config->ServerName.c_str(), "NOTICE %s :%s removed %s from the channel", channel->name.c_str(), user->nick.c_str(), target->nick.c_str()); target->WriteServ("NOTICE %s :*** %s removed you from %s with the message: %s", target->nick.c_str(), user->nick.c_str(), channel->name.c_str(), reasonparam.c_str()); 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; } virtual RouteDescriptor GetRouting(User* user, const std::vector& parameters) = 0; }; /** Handle /REMOVE */ class CommandRemove : public RemoveBase { public: CommandRemove(Module* Creator, bool& snk) : RemoveBase(Creator, snk, "REMOVE") { syntax = " []"; TRANSLATE4(TR_NICK, TR_TEXT, TR_TEXT, TR_END); } CmdResult Handle (const std::vector& parameters, User *user) { return HandleRMB(parameters, user, false); } RouteDescriptor GetRouting(User* user, const std::vector& 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 = " []"; TRANSLATE4(TR_TEXT, TR_NICK, TR_TEXT, TR_END); } CmdResult Handle (const std::vector& parameters, User *user) { return HandleRMB(parameters, user, true); } RouteDescriptor GetRouting(User* user, const std::vector& 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) { ServerInstance->AddCommand(&cmd1); ServerInstance->AddCommand(&cmd2); OnRehash(NULL); Implementation eventlist[] = { I_On005Numeric, I_OnRehash }; ServerInstance->Modules->Attach(eventlist, this, 2); } virtual void On005Numeric(std::string &output) { output.append(" REMOVE"); } virtual void OnRehash(User* user) { ConfigReader conf; supportnokicks = conf.ReadFlag("remove", "supportnokicks", 0); } virtual ~ModuleRemove() { } virtual Version GetVersion() { 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)