X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_redirect.cpp;h=42025e6ed4ba76274ba7bca5ea4d72bcc6385606;hb=55a0a6ab66739fae65d123fadff1a31d96999c16;hp=e3da4622f400ce62b265aadc0e11ff87fce4db8d;hpb=49ef1162a51906e7444bb7e38736bd816c317db6;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_redirect.cpp b/src/modules/m_redirect.cpp index e3da4622f..42025e6ed 100644 --- a/src/modules/m_redirect.cpp +++ b/src/modules/m_redirect.cpp @@ -1,170 +1,137 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev. - * E-mail: - * - * - * - * Written by Craig Edwards, Craig McLure, and others. - * This program is free but copyrighted software; see - * the file COPYING for details. + * Copyright (C) 2017 B00mX0r + * Copyright (C) 2013, 2017, 2019 Sadie Powell + * Copyright (C) 2012-2014, 2016 Attila Molnar + * Copyright (C) 2012, 2019 Robby + * Copyright (C) 2012, 2014 Shawn Smith + * Copyright (C) 2009 Uli Schlachter + * Copyright (C) 2009 Daniel De Graaf + * Copyright (C) 2008 Robin Burchell + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2006, 2010 Craig Edwards * - * --------------------------------------------------- + * 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 . */ -using namespace std; -#include -#include "users.h" -#include "channels.h" -#include "modules.h" -#include "helperfuncs.h" +#include "inspircd.h" -/* $ModDesc: Provides channel mode +L (limit redirection) */ - -class Redirect : public ModeHandler +/** Handle channel mode +L + */ +class Redirect : public ParamMode { public: - Redirect() : ModeHandler('L', 1, 0, false, MODETYPE_CHANNEL, false) { } + Redirect(Module* Creator) + : ParamMode(Creator, "redirect", 'L') + { + syntax = ""; + } - ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding) + ModeAction OnSet(User* source, Channel* channel, std::string& parameter) CXX11_OVERRIDE { - if (adding) + if (IS_LOCAL(source)) { - chanrec* c = NULL; - - if (!IsValidChannelName(parameter.c_str())) + if (!ServerInstance->IsChannel(parameter)) { - WriteServ(user->fd,"403 %s %s :Invalid channel name",user->nick, parameter.c_str()); - parameter = ""; + source->WriteNumeric(Numerics::NoSuchChannel(parameter)); return MODEACTION_DENY; } + } - c = Srv->FindChannel(parameter); - if (c) + if (IS_LOCAL(source) && !source->IsOper()) + { + Channel* c = ServerInstance->FindChan(parameter); + if (!c) { - /* Fix by brain: Dont let a channel be linked to *itself* either */ - if ((c == target) || (c->IsModeSet('L'))) - { - WriteServ(user->fd,"690 %s :Circular redirection, mode +L to %s not allowed.",user->nick,parameter.c_str()); - parameter = ""; - return MODEACTION_DENY; - } + source->WriteNumeric(690, InspIRCd::Format("Target channel %s must exist to be set as a redirect.", parameter.c_str())); + return MODEACTION_DENY; + } + else if (c->GetPrefixValue(source) < OP_VALUE) + { + source->WriteNumeric(690, InspIRCd::Format("You must be opped on %s to set it as a redirect.", parameter.c_str())); + return MODEACTION_DENY; } - - c->SetMode('L', true); - c->SetModeParam('L', parameter); - return MODEACTION_ALLOW; } + + /* + * We used to do some checking for circular +L here, but there is no real need for this any more especially as we + * now catch +L looping in PreJoin. Remove it, since O(n) logic makes me sad, and we catch it anyway. :) -- w00t + */ + ext.set(channel, parameter); + return MODEACTION_ALLOW; + } + + void SerializeParam(Channel* chan, const std::string* str, std::string& out) + { + out += *str; } }; class ModuleRedirect : public Module { - Server *Srv; - + Redirect re; + SimpleUserModeHandler antiredirectmode; + ChanModeReference limitmode; + public: - - ModuleRedirect(Server* Me) - : Module::Module(Me) + ModuleRedirect() + : re(this) + , antiredirectmode(this, "antiredirect", 'L') + , limitmode(this, "limit") { - Srv = Me; - Srv->AddExtendedMode('L',MT_CHANNEL,false,1,0); } - - virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list ¶ms) + + ModResult OnUserPreJoin(LocalUser* user, Channel* chan, const std::string& cname, std::string& privs, const std::string& keygiven) CXX11_OVERRIDE { - if ((modechar == 'L') && (type == MT_CHANNEL)) + if (chan) { - if (mode_on) + if (chan->IsModeSet(re) && chan->IsModeSet(limitmode)) { - std::string ChanToJoin = params[0]; - chanrec *c; - - if (!IsValidChannelName(ChanToJoin.c_str())) + if (chan->GetUserCounter() >= ConvToNum(chan->GetModeParameter(limitmode))) { - WriteServ(user->fd,"403 %s %s :Invalid channel name",user->nick, ChanToJoin.c_str()); - return 0; - } + const std::string& channel = *re.ext.get(chan); - c = Srv->FindChannel(ChanToJoin); - if (c) - { - /* Fix by brain: Dont let a channel be linked to *itself* either */ - if ((c == target) || (c->IsModeSet('L'))) + /* sometimes broken ulines can make circular or chained +L, avoid this */ + Channel* destchan = ServerInstance->FindChan(channel); + if (destchan && destchan->IsModeSet(re)) { - WriteServ(user->fd,"690 %s :Circular redirection, mode +L to %s not allowed.",user->nick,params[0].c_str()); - return 0; + user->WriteNumeric(470, cname, '*', "You may not join this channel. A redirect is set, but you may not be redirected as it is a circular loop."); + return MOD_RES_DENY; } - } - } - return 1; - } - return 0; - } - void Implements(char* List) - { - List[I_On005Numeric] = List[I_OnUserPreJoin] = List[I_OnExtendedMode] = 1; - } - - virtual void On005Numeric(std::string &output) - { - InsertMode(output, "L", 3); - } - - virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname) - { - if (chan) - { - if (chan->IsModeSet('L')) - { - if (Srv->CountUsers(chan) >= chan->limit) - { - std::string channel = chan->GetModeParameter('L'); - WriteServ(user->fd,"470 %s :%s has become full, so you are automatically being transferred to the linked channel %s",user->nick,cname,channel.c_str()); - Srv->JoinUserToChannel(user,channel.c_str(),""); - return 1; + if (user->IsModeSet(antiredirectmode)) + { + user->WriteNumeric(470, cname, channel, "Force redirection stopped."); + return MOD_RES_DENY; + } + else + { + user->WriteNumeric(470, cname, channel, "You may not join this channel, so you are automatically being transferred to the redirected channel."); + Channel::JoinUser(user, channel); + return MOD_RES_DENY; + } } } } - return 0; - } - - virtual ~ModuleRedirect() - { - } - - virtual Version GetVersion() - { - return Version(1,0,0,0,VF_STATIC|VF_VENDOR); + return MOD_RES_PASSTHRU; } -}; - -class ModuleRedirectFactory : public ModuleFactory -{ - public: - ModuleRedirectFactory() + Version GetVersion() CXX11_OVERRIDE { + return Version("Allows users to be redirected to another channel when the user limit is reached.", VF_VENDOR); } - - ~ModuleRedirectFactory() - { - } - - virtual Module * CreateModule(Server* Me) - { - return new ModuleRedirect(Me); - } - }; - -extern "C" void * init_module( void ) -{ - return new ModuleRedirectFactory; -} - +MODULE_INIT(ModuleRedirect)