X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_redirect.cpp;h=00c191d26a74c30cebe3143662d4f5696160d63c;hb=2dfc384cde46ba63ed7c2f4420712596096123ca;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..00c191d26 100644 --- a/src/modules/m_redirect.cpp +++ b/src/modules/m_redirect.cpp @@ -2,130 +2,129 @@ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * - * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev. - * E-mail: - * - * - * - * Written by Craig Edwards, Craig McLure, and others. + * InspIRCd: (C) 2002-2009 InspIRCd Development Team + * See: http://wiki.inspircd.org/Credits + * * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ -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) */ +/** Handle channel mode +L + */ class Redirect : public ModeHandler { public: - Redirect() : ModeHandler('L', 1, 0, false, MODETYPE_CHANNEL, false) { } + Redirect(InspIRCd* Instance) : ModeHandler(Instance, 'L', 1, 0, false, MODETYPE_CHANNEL, false) { } + + ModePair ModeSet(User* source, User* dest, Channel* channel, const std::string ¶meter) + { + if (channel->IsModeSet('L')) + return std::make_pair(true, channel->GetModeParameter('L')); + else + return std::make_pair(false, parameter); + } + + bool CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, Channel* channel) + { + /* When TS is equal, the alphabetically later one wins */ + return (their_param < our_param); + } - ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding) + ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding, bool) { if (adding) { - chanrec* c = NULL; + Channel* c = NULL; - if (!IsValidChannelName(parameter.c_str())) + if (IS_LOCAL(source) && !ServerInstance->IsChannel(parameter.c_str(), ServerInstance->Config->Limits.ChanMax)) { - WriteServ(user->fd,"403 %s %s :Invalid channel name",user->nick, parameter.c_str()); - parameter = ""; + source->WriteNumeric(403, "%s %s :Invalid channel name", source->nick.c_str(), parameter.c_str()); + parameter.clear(); return MODEACTION_DENY; } - c = Srv->FindChannel(parameter); - if (c) + c = ServerInstance->FindChan(parameter); + if (!c && !IS_OPER(source)) { - /* 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, "%s :Target channel %s must exist to be set as a redirect.",source->nick.c_str(),parameter.c_str()); + parameter.clear(); + return MODEACTION_DENY; + } + + if (c && c->GetStatus(source) < STATUS_OP && !IS_OPER(source)) + { + source->WriteNumeric(690, "%s :You must be opped on %s to set it as a redirect.",source->nick.c_str(),parameter.c_str()); + parameter.clear(); + return MODEACTION_DENY; } - c->SetMode('L', true); - c->SetModeParam('L', parameter); + /* + * 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 + */ + channel->SetMode('L', parameter); return MODEACTION_ALLOW; } + else + { + if (channel->IsModeSet('L')) + { + channel->SetMode('L', ""); + return MODEACTION_ALLOW; + } + } + + return MODEACTION_DENY; + } }; class ModuleRedirect : public Module { - Server *Srv; - - public: - - ModuleRedirect(Server* Me) - : Module::Module(Me) - { - 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) - { - if ((modechar == 'L') && (type == MT_CHANNEL)) - { - if (mode_on) - { - std::string ChanToJoin = params[0]; - chanrec *c; - if (!IsValidChannelName(ChanToJoin.c_str())) - { - WriteServ(user->fd,"403 %s %s :Invalid channel name",user->nick, ChanToJoin.c_str()); - return 0; - } + Redirect* re; - c = Srv->FindChannel(ChanToJoin); - 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,params[0].c_str()); - return 0; - } - } - } - return 1; - } - return 0; - } + public: - void Implements(char* List) + ModuleRedirect(InspIRCd* Me) + : Module(Me) { - List[I_On005Numeric] = List[I_OnUserPreJoin] = List[I_OnExtendedMode] = 1; - } - virtual void On005Numeric(std::string &output) - { - InsertMode(output, "L", 3); + re = new Redirect(ServerInstance); + if (!ServerInstance->Modes->AddMode(re)) + throw ModuleException("Could not add new modes!"); + Implementation eventlist[] = { I_OnUserPreJoin }; + ServerInstance->Modules->Attach(eventlist, this, 1); } - - virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname) + + + virtual int OnUserPreJoin(User* user, Channel* chan, const char* cname, std::string &privs, const std::string &keygiven) { if (chan) { - if (chan->IsModeSet('L')) + if (chan->IsModeSet('L') && chan->modes[CM_LIMIT]) { - if (Srv->CountUsers(chan) >= chan->limit) + if (chan->GetUserCounter() >= atoi(chan->GetModeParameter('l').c_str())) { 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(),""); + + /* sometimes broken ulines can make circular or chained +L, avoid this */ + Channel* destchan = NULL; + destchan = ServerInstance->FindChan(channel); + if (destchan && destchan->IsModeSet('L')) + { + user->WriteNumeric(470, "%s %s * :You may not join this channel. A redirect is set, but you may not be redirected as it is a circular loop.", user->nick.c_str(), cname); + return 1; + } + + user->WriteNumeric(470, "%s %s %s :You may not join this channel, so you are automatically being transferred to the redirect channel.", user->nick.c_str(), cname, channel.c_str()); + Channel::JoinUser(ServerInstance, user, channel.c_str(), false, "", false, ServerInstance->Time()); return 1; } } @@ -135,36 +134,14 @@ class ModuleRedirect : public Module virtual ~ModuleRedirect() { + ServerInstance->Modes->DelMode(re); + delete re; } - - virtual Version GetVersion() - { - return Version(1,0,0,0,VF_STATIC|VF_VENDOR); - } -}; - -class ModuleRedirectFactory : public ModuleFactory -{ - public: - ModuleRedirectFactory() - { - } - - ~ModuleRedirectFactory() - { - } - - virtual Module * CreateModule(Server* Me) + virtual Version GetVersion() { - return new ModuleRedirect(Me); + return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION); } - }; - -extern "C" void * init_module( void ) -{ - return new ModuleRedirectFactory; -} - +MODULE_INIT(ModuleRedirect)