2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2009 Uli Schlachter <psychon@znc.in>
6 * Copyright (C) 2007-2009 Robin Burchell <robin+git@viroteck.net>
7 * Copyright (C) 2007-2008 Dennis Friis <peavey@inspircd.org>
8 * Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
9 * Copyright (C) 2008 Geoff Bricker <geoff.bricker@gmail.com>
10 * Copyright (C) 2004-2006 Craig Edwards <craigedwards@brainbox.cc>
11 * Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
13 * This file is part of InspIRCd. InspIRCd is free software: you can
14 * redistribute it and/or modify it under the terms of the GNU General Public
15 * License as published by the Free Software Foundation, version 2.
17 * This program is distributed in the hope that it will be useful, but WITHOUT
18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
19 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
22 * You should have received a copy of the GNU General Public License
23 * along with this program. If not, see <http://www.gnu.org/licenses/>.
29 class ModuleOverride : public Module
33 ChanModeReference topiclock;
34 ChanModeReference inviteonly;
35 ChanModeReference key;
36 ChanModeReference limit;
38 static bool IsOverride(unsigned int userlevel, const std::string& modeline)
40 for (std::string::const_iterator i = modeline.begin(); i != modeline.end(); ++i)
42 ModeHandler* mh = ServerInstance->Modes->FindMode(*i, MODETYPE_CHANNEL);
46 if (mh->GetLevelRequired() > userlevel)
52 ModResult HandleJoinOverride(LocalUser* user, Channel* chan, const std::string& keygiven, const char* bypasswhat, const char* mode)
54 if (RequireKey && keygiven != "override")
56 // Can't join normally -- must use a special key to bypass restrictions
57 user->WriteNotice("*** You may not join normally. You must join with a key of 'override' to oper override.");
58 return MOD_RES_PASSTHRU;
62 chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper override to bypass %s", chan->name.c_str(), user->nick.c_str(), bypasswhat);
63 ServerInstance->SNO->WriteGlobalSno('v', user->nick+" used oper override to bypass " + mode + " on " + chan->name);
69 : topiclock(this, "topiclock")
70 , inviteonly(this, "inviteonly")
72 , limit(this, "limit")
76 void init() CXX11_OVERRIDE
78 ServerInstance->SNO->EnableSnomask('v', "OVERRIDE");
81 void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
83 // re-read our config options
84 ConfigTag* tag = ServerInstance->Config->ConfValue("override");
85 NoisyOverride = tag->getBool("noisy");
86 RequireKey = tag->getBool("requirekey");
89 void On005Numeric(std::map<std::string, std::string>& tokens) CXX11_OVERRIDE
94 bool CanOverride(User* source, const char* token)
96 std::string tokenlist = source->oper->getConfig("override");
98 // its defined or * is set, return its value as a boolean for if the token is set
99 return ((tokenlist.find(token, 0) != std::string::npos) || (tokenlist.find("*", 0) != std::string::npos));
103 ModResult OnPreTopicChange(User *source, Channel *channel, const std::string &topic) CXX11_OVERRIDE
105 if (IS_LOCAL(source) && source->IsOper() && CanOverride(source, "TOPIC"))
107 if (!channel->HasUser(source) || (channel->IsModeSet(topiclock) && channel->GetPrefixValue(source) < HALFOP_VALUE))
109 ServerInstance->SNO->WriteGlobalSno('v',source->nick+" used oper override to change a topic on "+channel->name);
113 return MOD_RES_ALLOW;
116 return MOD_RES_PASSTHRU;
119 ModResult OnUserPreKick(User* source, Membership* memb, const std::string &reason) CXX11_OVERRIDE
121 if (source->IsOper() && CanOverride(source,"KICK"))
123 // If the kicker's status is less than the target's, or the kicker's status is less than or equal to voice
124 if ((memb->chan->GetPrefixValue(source) < memb->getRank()) || (memb->chan->GetPrefixValue(source) <= VOICE_VALUE))
126 ServerInstance->SNO->WriteGlobalSno('v',source->nick+" used oper override to kick "+memb->user->nick+" on "+memb->chan->name+" ("+reason+")");
127 return MOD_RES_ALLOW;
130 return MOD_RES_PASSTHRU;
133 ModResult OnPreMode(User* source,User* dest,Channel* channel, const std::vector<std::string>& parameters) CXX11_OVERRIDE
136 return MOD_RES_PASSTHRU;
137 if (!source->IsOper() || !IS_LOCAL(source))
138 return MOD_RES_PASSTHRU;
140 unsigned int mode = channel->GetPrefixValue(source);
142 if (!IsOverride(mode, parameters[1]))
143 return MOD_RES_PASSTHRU;
145 if (CanOverride(source, "MODE"))
147 std::string msg = source->nick+" overriding modes:";
148 for(unsigned int i=0; i < parameters.size(); i++)
149 msg += " " + parameters[i];
150 ServerInstance->SNO->WriteGlobalSno('v',msg);
151 return MOD_RES_ALLOW;
153 return MOD_RES_PASSTHRU;
156 ModResult OnUserPreJoin(LocalUser* user, Channel* chan, const std::string& cname, std::string& privs, const std::string& keygiven) CXX11_OVERRIDE
162 if (chan->IsModeSet(inviteonly) && (CanOverride(user,"INVITE")))
164 if (!user->IsInvited(chan))
165 return HandleJoinOverride(user, chan, keygiven, "invite-only", "+i");
166 return MOD_RES_ALLOW;
169 if (chan->IsModeSet(key) && (CanOverride(user,"KEY")) && keygiven != chan->GetModeParameter(key))
170 return HandleJoinOverride(user, chan, keygiven, "the channel key", "+k");
172 if (chan->IsModeSet(limit) && (chan->GetUserCounter() >= ConvToInt(chan->GetModeParameter(limit))) && (CanOverride(user,"LIMIT")))
173 return HandleJoinOverride(user, chan, keygiven, "the channel limit", "+l");
175 if (chan->IsBanned(user) && CanOverride(user,"BANWALK"))
176 return HandleJoinOverride(user, chan, keygiven, "channel ban", "channel ban");
179 return MOD_RES_PASSTHRU;
182 Version GetVersion() CXX11_OVERRIDE
184 return Version("Provides support for allowing opers to override certain things",VF_VENDOR);
188 MODULE_INIT(ModuleOverride)