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 /* $ModDesc: Provides support for allowing opers to override certain things. */
31 class ModuleOverride : public Module
36 static bool IsOverride(unsigned int userlevel, const std::string& modeline)
38 for (std::string::const_iterator i = modeline.begin(); i != modeline.end(); ++i)
40 ModeHandler* mh = ServerInstance->Modes->FindMode(*i, MODETYPE_CHANNEL);
44 if (mh->GetLevelRequired() > userlevel)
54 // read our config options (main config file)
56 ServerInstance->SNO->EnableSnomask('v', "OVERRIDE");
57 Implementation eventlist[] = { I_OnRehash, I_OnPreMode, I_On005Numeric, I_OnUserPreJoin, I_OnUserPreKick, I_OnPreTopicChange };
58 ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
61 void OnRehash(User* user)
63 // re-read our config options on a rehash
64 ConfigTag* tag = ServerInstance->Config->ConfValue("override");
65 NoisyOverride = tag->getBool("noisy");
66 RequireKey = tag->getBool("requirekey");
69 void On005Numeric(std::string &output)
71 output.append(" OVERRIDE");
74 bool CanOverride(User* source, const char* token)
76 std::string tokenlist = source->oper->getConfig("override");
78 // its defined or * is set, return its value as a boolean for if the token is set
79 return ((tokenlist.find(token, 0) != std::string::npos) || (tokenlist.find("*", 0) != std::string::npos));
83 ModResult OnPreTopicChange(User *source, Channel *channel, const std::string &topic)
85 if (IS_LOCAL(source) && IS_OPER(source) && CanOverride(source, "TOPIC"))
87 if (!channel->HasUser(source) || (channel->IsModeSet('t') && channel->GetPrefixValue(source) < HALFOP_VALUE))
89 ServerInstance->SNO->WriteGlobalSno('v',source->nick+" used oper override to change a topic on "+channel->name);
96 return MOD_RES_PASSTHRU;
99 ModResult OnUserPreKick(User* source, Membership* memb, const std::string &reason)
101 if (IS_OPER(source) && CanOverride(source,"KICK"))
103 // If the kicker's status is less than the target's, or the kicker's status is less than or equal to voice
104 if ((memb->chan->GetPrefixValue(source) < memb->getRank()) || (memb->chan->GetPrefixValue(source) <= VOICE_VALUE) ||
105 (memb->chan->GetPrefixValue(source) == HALFOP_VALUE) && (memb->getRank() == HALFOP_VALUE))
107 ServerInstance->SNO->WriteGlobalSno('v',source->nick+" used oper override to kick "+memb->user->nick+" on "+memb->chan->name+" ("+reason+")");
108 return MOD_RES_ALLOW;
111 return MOD_RES_PASSTHRU;
114 ModResult OnPreMode(User* source,User* dest,Channel* channel, const std::vector<std::string>& parameters)
116 if (!source || !channel)
117 return MOD_RES_PASSTHRU;
118 if (!IS_OPER(source) || !IS_LOCAL(source))
119 return MOD_RES_PASSTHRU;
121 unsigned int mode = channel->GetPrefixValue(source);
123 if (!IsOverride(mode, parameters[1]))
124 return MOD_RES_PASSTHRU;
126 if (CanOverride(source, "MODE"))
128 std::string msg = source->nick+" overriding modes:";
129 for(unsigned int i=0; i < parameters.size(); i++)
130 msg += " " + parameters[i];
131 ServerInstance->SNO->WriteGlobalSno('v',msg);
132 return MOD_RES_ALLOW;
134 return MOD_RES_PASSTHRU;
137 ModResult OnUserPreJoin(User* user, Channel* chan, const char* cname, std::string &privs, const std::string &keygiven)
139 if (IS_LOCAL(user) && IS_OPER(user))
143 if (chan->IsModeSet('i') && (CanOverride(user,"INVITE")))
145 irc::string x(chan->name.c_str());
146 if (!IS_LOCAL(user)->IsInvited(x))
148 if (RequireKey && keygiven != "override")
150 // Can't join normally -- must use a special key to bypass restrictions
151 user->WriteServ("NOTICE %s :*** You may not join normally. You must join with a key of 'override' to oper override.", user->nick.c_str());
152 return MOD_RES_PASSTHRU;
156 chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper override to bypass invite-only", cname, user->nick.c_str());
157 ServerInstance->SNO->WriteGlobalSno('v', user->nick+" used oper override to bypass +i on "+std::string(cname));
159 return MOD_RES_ALLOW;
162 if (chan->IsModeSet('k') && (CanOverride(user,"KEY")) && keygiven != chan->GetModeParameter('k'))
164 if (RequireKey && keygiven != "override")
166 // Can't join normally -- must use a special key to bypass restrictions
167 user->WriteServ("NOTICE %s :*** You may not join normally. You must join with a key of 'override' to oper override.", user->nick.c_str());
168 return MOD_RES_PASSTHRU;
172 chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper override to bypass the channel key", cname, user->nick.c_str());
173 ServerInstance->SNO->WriteGlobalSno('v', user->nick+" used oper override to bypass +k on "+std::string(cname));
174 return MOD_RES_ALLOW;
177 if (chan->IsModeSet('l') && (chan->GetUserCounter() >= ConvToInt(chan->GetModeParameter('l'))) && (CanOverride(user,"LIMIT")))
179 if (RequireKey && keygiven != "override")
181 // Can't join normally -- must use a special key to bypass restrictions
182 user->WriteServ("NOTICE %s :*** You may not join normally. You must join with a key of 'override' to oper override.", user->nick.c_str());
183 return MOD_RES_PASSTHRU;
187 chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper override to bypass the channel limit", cname, user->nick.c_str());
188 ServerInstance->SNO->WriteGlobalSno('v', user->nick+" used oper override to bypass +l on "+std::string(cname));
189 return MOD_RES_ALLOW;
192 if (chan->IsBanned(user) && CanOverride(user,"BANWALK"))
194 if (RequireKey && keygiven != "override")
196 // Can't join normally -- must use a special key to bypass restrictions
197 user->WriteServ("NOTICE %s :*** You may not join normally. You must join with a key of 'override' to oper override.", user->nick.c_str());
198 return MOD_RES_PASSTHRU;
202 chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper override to bypass channel ban", cname, user->nick.c_str());
203 ServerInstance->SNO->WriteGlobalSno('v',"%s used oper override to bypass channel ban on %s", user->nick.c_str(), cname);
204 return MOD_RES_ALLOW;
208 return MOD_RES_PASSTHRU;
213 return Version("Provides support for allowing opers to override certain things",VF_VENDOR);
217 MODULE_INIT(ModuleOverride)