X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_redirect.cpp;h=c81ab2a706e953c29c2b4539c2cb011f82e2704d;hb=4c286655e1b930908fd02681ac00e172156e737c;hp=6e239cb088fd48eaba3d799ea3f3c604cbc83f3f;hpb=78c5594e4b98f0cd291ccae91d151b25c011dacb;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_redirect.cpp b/src/modules/m_redirect.cpp index 6e239cb08..c81ab2a70 100644 --- a/src/modules/m_redirect.cpp +++ b/src/modules/m_redirect.cpp @@ -2,56 +2,76 @@ * | 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) 2002-2008 InspIRCd Development Team + * See: http://www.inspircd.org/wiki/index.php/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 { - Server* Srv; public: - Redirect(Server* s) : ModeHandler('L', 1, 0, false, MODETYPE_CHANNEL, false), Srv(s) { } + 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(source->fd,"403 %s %s :Invalid channel name",source->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); + c = ServerInstance->FindChan(parameter); if (c) { /* Fix by brain: Dont let a channel be linked to *itself* either */ - if ((c == channel) || (c->IsModeSet('L'))) + if (IS_LOCAL(source)) { - WriteServ(source->fd,"690 %s :Circular redirection, mode +L to %s not allowed.",source->nick,parameter.c_str()); - parameter = ""; - return MODEACTION_DENY; + if ((c == channel) || (c->IsModeSet('L'))) + { + source->WriteNumeric(690, "%s :Circular or chained +L to %s not allowed (Channel already has +L). Pack of wild dogs has been unleashed.",source->nick.c_str(),parameter.c_str()); + parameter.clear(); + return MODEACTION_DENY; + } + else + { + for (chan_hash::const_iterator i = ServerInstance->chanlist->begin(); i != ServerInstance->chanlist->end(); i++) + { + if ((i->second != channel) && (i->second->IsModeSet('L')) && (irc::string(i->second->GetModeParameter('L').c_str()) == channel->name)) + { + source->WriteNumeric(690, "%s :Circular or chained +L to %s not allowed (Already forwarded here from %s). Angry monkeys dispatched.",source->nick.c_str(), parameter.c_str(), i->second->name.c_str()); + return MODEACTION_DENY; + } + } + } } } @@ -69,46 +89,50 @@ class Redirect : public ModeHandler } return MODEACTION_DENY; - + } }; class ModuleRedirect : public Module { - Server *Srv; + Redirect* re; - + public: - - ModuleRedirect(Server* Me) - : Module::Module(Me) - { - Srv = Me; - re = new Redirect(Me); - Srv->AddMode(re, 'L'); - } - - void Implements(char* List) - { - List[I_On005Numeric] = List[I_OnUserPreJoin] = 1; - } - virtual void On005Numeric(std::string &output) + ModuleRedirect(InspIRCd* Me) + : Module(Me) { - 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 is full, but has a circular redirect (+L), not following redirection to %s", user->nick.c_str(), cname, channel.c_str()); + return 1; + } + + user->WriteNumeric(470, "%s :%s has become full, so you are automatically being transferred to the linked channel %s", user->nick.c_str(), cname, channel.c_str()); + Channel::JoinUser(ServerInstance, user, channel.c_str(), false, "", false, ServerInstance->Time()); return 1; } } @@ -118,37 +142,14 @@ class ModuleRedirect : public Module virtual ~ModuleRedirect() { - DELETE(re); + 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(1, 2, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION); } - }; - -extern "C" void * init_module( void ) -{ - return new ModuleRedirectFactory; -} - +MODULE_INIT(ModuleRedirect)