/* * InspIRCd -- Internet Relay Chat Daemon * * Copyright (C) 2009-2010 Daniel De Graaf * Copyright (C) 2009 Uli Schlachter * Copyright (C) 2007-2009 Robin Burchell * Copyright (C) 2007-2008 Dennis Friis * Copyright (C) 2008 Pippijn van Steenhoven * Copyright (C) 2008 Geoff Bricker * Copyright (C) 2004-2006 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 support for allowing opers to override certain things. */ class ModuleOverride : public Module { bool RequireKey; bool NoisyOverride; static bool IsOverride(unsigned int userlevel, const std::string& modeline) { for (std::string::const_iterator i = modeline.begin(); i != modeline.end(); ++i) { ModeHandler* mh = ServerInstance->Modes->FindMode(*i, MODETYPE_CHANNEL); if (!mh) continue; if (mh->GetLevelRequired() > userlevel) return true; } return false; } public: void init() { // read our config options (main config file) OnRehash(NULL); ServerInstance->SNO->EnableSnomask('v', "OVERRIDE"); Implementation eventlist[] = { I_OnRehash, I_OnPreMode, I_On005Numeric, I_OnUserPreJoin, I_OnUserPreKick, I_OnPreTopicChange }; ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation)); } void OnRehash(User* user) { // re-read our config options on a rehash ConfigTag* tag = ServerInstance->Config->ConfValue("override"); NoisyOverride = tag->getBool("noisy"); RequireKey = tag->getBool("requirekey"); } void On005Numeric(std::string &output) { output.append(" OVERRIDE"); } bool CanOverride(User* source, const char* token) { std::string tokenlist = source->oper->getConfig("override"); // its defined or * is set, return its value as a boolean for if the token is set return ((tokenlist.find(token, 0) != std::string::npos) || (tokenlist.find("*", 0) != std::string::npos)); } ModResult OnPreTopicChange(User *source, Channel *channel, const std::string &topic) { if (IS_LOCAL(source) && IS_OPER(source) && CanOverride(source, "TOPIC")) { if (!channel->HasUser(source) || (channel->IsModeSet('t') && channel->GetPrefixValue(source) < HALFOP_VALUE)) { ServerInstance->SNO->WriteGlobalSno('v',source->nick+" used oper override to change a topic on "+channel->name); } // Explicit allow return MOD_RES_ALLOW; } return MOD_RES_PASSTHRU; } ModResult OnUserPreKick(User* source, Membership* memb, const std::string &reason) { if (IS_OPER(source) && CanOverride(source,"KICK")) { // If the kicker's status is less than the target's, or the kicker's status is less than or equal to voice if ((memb->chan->GetPrefixValue(source) < memb->getRank()) || (memb->chan->GetPrefixValue(source) <= VOICE_VALUE) || (memb->chan->GetPrefixValue(source) == HALFOP_VALUE) && (memb->getRank() == HALFOP_VALUE)) { ServerInstance->SNO->WriteGlobalSno('v',source->nick+" used oper override to kick "+memb->user->nick+" on "+memb->chan->name+" ("+reason+")"); return MOD_RES_ALLOW; } } return MOD_RES_PASSTHRU; } ModResult OnPreMode(User* source,User* dest,Channel* channel, const std::vector& parameters) { if (!source || !channel) return MOD_RES_PASSTHRU; if (!IS_OPER(source) || !IS_LOCAL(source)) return MOD_RES_PASSTHRU; unsigned int mode = channel->GetPrefixValue(source); if (!IsOverride(mode, parameters[1])) return MOD_RES_PASSTHRU; if (CanOverride(source, "MODE")) { std::string msg = source->nick+" overriding modes:"; for(unsigned int i=0; i < parameters.size(); i++) msg += " " + parameters[i]; ServerInstance->SNO->WriteGlobalSno('v',msg); return MOD_RES_ALLOW; } return MOD_RES_PASSTHRU; } ModResult OnUserPreJoin(User* user, Channel* chan, const char* cname, std::string &privs, const std::string &keygiven) { if (IS_LOCAL(user) && IS_OPER(user)) { if (chan) { if (chan->IsModeSet('i') && (CanOverride(user,"INVITE"))) { irc::string x(chan->name.c_str()); if (!IS_LOCAL(user)->IsInvited(x)) { if (RequireKey && keygiven != "override") { // Can't join normally -- must use a special key to bypass restrictions user->WriteServ("NOTICE %s :*** You may not join normally. You must join with a key of 'override' to oper override.", user->nick.c_str()); return MOD_RES_PASSTHRU; } if (NoisyOverride) chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper override to bypass invite-only", cname, user->nick.c_str()); ServerInstance->SNO->WriteGlobalSno('v', user->nick+" used oper override to bypass +i on "+std::string(cname)); } return MOD_RES_ALLOW; } if (chan->IsModeSet('k') && (CanOverride(user,"KEY")) && keygiven != chan->GetModeParameter('k')) { if (RequireKey && keygiven != "override") { // Can't join normally -- must use a special key to bypass restrictions user->WriteServ("NOTICE %s :*** You may not join normally. You must join with a key of 'override' to oper override.", user->nick.c_str()); return MOD_RES_PASSTHRU; } if (NoisyOverride) chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper override to bypass the channel key", cname, user->nick.c_str()); ServerInstance->SNO->WriteGlobalSno('v', user->nick+" used oper override to bypass +k on "+std::string(cname)); return MOD_RES_ALLOW; } if (chan->IsModeSet('l') && (chan->GetUserCounter() >= ConvToInt(chan->GetModeParameter('l'))) && (CanOverride(user,"LIMIT"))) { if (RequireKey && keygiven != "override") { // Can't join normally -- must use a special key to bypass restrictions user->WriteServ("NOTICE %s :*** You may not join normally. You must join with a key of 'override' to oper override.", user->nick.c_str()); return MOD_RES_PASSTHRU; } if (NoisyOverride) chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper override to bypass the channel limit", cname, user->nick.c_str()); ServerInstance->SNO->WriteGlobalSno('v', user->nick+" used oper override to bypass +l on "+std::string(cname)); return MOD_RES_ALLOW; } if (chan->IsBanned(user) && CanOverride(user,"BANWALK")) { if (RequireKey && keygiven != "override") { // Can't join normally -- must use a special key to bypass restrictions user->WriteServ("NOTICE %s :*** You may not join normally. You must join with a key of 'override' to oper override.", user->nick.c_str()); return MOD_RES_PASSTHRU; } if (NoisyOverride) chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper override to bypass channel ban", cname, user->nick.c_str()); ServerInstance->SNO->WriteGlobalSno('v',"%s used oper override to bypass channel ban on %s", user->nick.c_str(), cname); return MOD_RES_ALLOW; } } } return MOD_RES_PASSTHRU; } Version GetVersion() { return Version("Provides support for allowing opers to override certain things",VF_VENDOR); } }; MODULE_INIT(ModuleOverride)