-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
- *
- * 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 <b00mx0r@aureus.pw>
+ * Copyright (C) 2013, 2017, 2019 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2012-2014, 2016 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
+ * Copyright (C) 2012, 2014 Shawn Smith <ShawnSmith0828@gmail.com>
+ * Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
+ * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2006, 2010 Craig Edwards <brain@inspircd.org>
*
- * ---------------------------------------------------
+ * 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 <http://www.gnu.org/licenses/>.
*/
-using namespace std;
-#include <stdio.h>
-#include "users.h"
-#include "channels.h"
-#include "modules.h"
-#include "helperfuncs.h"
#include "inspircd.h"
-/* $ModDesc: Provides channel mode +L (limit redirection) */
-
-extern InspIRCd* ServerInstance;
-
-class Redirect : public ModeHandler
+/** Handle channel mode +L
+ */
+class Redirect : public ParamMode<Redirect, LocalStringExt>
{
- Server* Srv;
public:
- Redirect(Server* s) : ModeHandler('L', 1, 0, false, MODETYPE_CHANNEL, false), Srv(s) { }
-
- ModePair ModeSet(userrec* source, userrec* dest, chanrec* 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, chanrec* channel)
+ Redirect(Module* Creator)
+ : ParamMode<Redirect, LocalStringExt>(Creator, "redirect", 'L')
{
- /* 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)
+ syntax = "<target>";
+ }
+
+ 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))
{
- source->WriteServ("403 %s %s :Invalid channel name",source->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 (IS_LOCAL(source))
- {
- if ((c == channel) || (c->IsModeSet('L')))
- {
- source->WriteServ("690 %s :Circular or chained +L to %s not allowed (Channel already has +L). Pack of wild dogs has been unleashed.",source->nick,parameter.c_str());
- parameter = "";
- 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()) == irc::string(channel->name)))
- {
- source->WriteServ("690 %s :Circular or chained +L to %s not allowed (Already forwarded here from %s). Angry monkeys dispatched.",source->nick,parameter.c_str(),i->second->name);
- 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;
}
-
- channel->SetMode('L', true);
- channel->SetModeParam('L', parameter.c_str(), true);
- return MODEACTION_ALLOW;
- }
- else
- {
- if (channel->IsModeSet('L'))
+ else if (c->GetPrefixValue(source) < OP_VALUE)
{
- channel->SetMode('L', false);
- return MODEACTION_ALLOW;
+ source->WriteNumeric(690, InspIRCd::Format("You must be opped on %s to set it as a redirect.", parameter.c_str()));
+ return MODEACTION_DENY;
}
}
- return MODEACTION_DENY;
-
+ /*
+ * 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;
-
+ 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;
- 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)
- {
- InsertMode(output, "L", 3);
- }
-
- virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname)
+ ModResult OnUserPreJoin(LocalUser* user, Channel* chan, const std::string& cname, std::string& privs, const std::string& keygiven) CXX11_OVERRIDE
{
if (chan)
{
- if (chan->IsModeSet('L'))
+ if (chan->IsModeSet(re) && chan->IsModeSet(limitmode))
{
- if (Srv->CountUsers(chan) >= chan->limit)
+ if (chan->GetUserCounter() >= ConvToNum<size_t>(chan->GetModeParameter(limitmode)))
{
- std::string channel = chan->GetModeParameter('L');
- user->WriteServ("470 %s :%s has become full, so you are automatically being transferred to the linked channel %s",user->nick,cname,channel.c_str());
- chanrec::JoinUser(user, channel.c_str(), false);
- return 1;
+ const std::string& channel = *re.ext.get(chan);
+
+ /* sometimes broken ulines can make circular or chained +L, avoid this */
+ Channel* destchan = ServerInstance->FindChan(channel);
+ if (destchan && destchan->IsModeSet(re))
+ {
+ 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;
+ }
+
+ 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()
- {
- DELETE(re);
- }
-
- 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)