2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2017 B00mX0r <b00mx0r@aureus.pw>
5 * Copyright (C) 2013, 2017, 2019 Sadie Powell <sadie@witchery.services>
6 * Copyright (C) 2012-2014, 2016 Attila Molnar <attilamolnar@hush.com>
7 * Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
8 * Copyright (C) 2012, 2014 Shawn Smith <ShawnSmith0828@gmail.com>
9 * Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
10 * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
11 * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
12 * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
13 * Copyright (C) 2004, 2006, 2010 Craig Edwards <brain@inspircd.org>
15 * This file is part of InspIRCd. InspIRCd is free software: you can
16 * redistribute it and/or modify it under the terms of the GNU General Public
17 * License as published by the Free Software Foundation, version 2.
19 * This program is distributed in the hope that it will be useful, but WITHOUT
20 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
21 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
24 * You should have received a copy of the GNU General Public License
25 * along with this program. If not, see <http://www.gnu.org/licenses/>.
31 /** Handle channel mode +L
33 class Redirect : public ParamMode<Redirect, LocalStringExt>
36 Redirect(Module* Creator)
37 : ParamMode<Redirect, LocalStringExt>(Creator, "redirect", 'L')
42 ModeAction OnSet(User* source, Channel* channel, std::string& parameter) CXX11_OVERRIDE
46 if (!ServerInstance->IsChannel(parameter))
48 source->WriteNumeric(Numerics::NoSuchChannel(parameter));
49 return MODEACTION_DENY;
53 if (IS_LOCAL(source) && !source->IsOper())
55 Channel* c = ServerInstance->FindChan(parameter);
58 source->WriteNumeric(690, InspIRCd::Format("Target channel %s must exist to be set as a redirect.", parameter.c_str()));
59 return MODEACTION_DENY;
61 else if (c->GetPrefixValue(source) < OP_VALUE)
63 source->WriteNumeric(690, InspIRCd::Format("You must be opped on %s to set it as a redirect.", parameter.c_str()));
64 return MODEACTION_DENY;
69 * We used to do some checking for circular +L here, but there is no real need for this any more especially as we
70 * now catch +L looping in PreJoin. Remove it, since O(n) logic makes me sad, and we catch it anyway. :) -- w00t
72 ext.set(channel, parameter);
73 return MODEACTION_ALLOW;
76 void SerializeParam(Channel* chan, const std::string* str, std::string& out)
82 class ModuleRedirect : public Module
85 SimpleUserModeHandler antiredirectmode;
86 ChanModeReference limitmode;
91 , antiredirectmode(this, "antiredirect", 'L')
92 , limitmode(this, "limit")
96 ModResult OnUserPreJoin(LocalUser* user, Channel* chan, const std::string& cname, std::string& privs, const std::string& keygiven) CXX11_OVERRIDE
100 if (chan->IsModeSet(re) && chan->IsModeSet(limitmode))
102 if (chan->GetUserCounter() >= ConvToNum<size_t>(chan->GetModeParameter(limitmode)))
104 const std::string& channel = *re.ext.get(chan);
106 /* sometimes broken ulines can make circular or chained +L, avoid this */
107 Channel* destchan = ServerInstance->FindChan(channel);
108 if (destchan && destchan->IsModeSet(re))
110 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.");
114 if (user->IsModeSet(antiredirectmode))
116 user->WriteNumeric(470, cname, channel, "Force redirection stopped.");
121 user->WriteNumeric(470, cname, channel, "You may not join this channel, so you are automatically being transferred to the redirected channel.");
122 Channel::JoinUser(user, channel);
128 return MOD_RES_PASSTHRU;
131 Version GetVersion() CXX11_OVERRIDE
133 return Version("Allows users to be redirected to another channel when the user limit is reached.", VF_VENDOR);
137 MODULE_INIT(ModuleRedirect)