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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2009 Uli Schlachter <psychon@znc.in>
* Copyright (C) 2007-2009 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2007-2008 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
* Copyright (C) 2008 Geoff Bricker <geoff.bricker@gmail.com>
* Copyright (C) 2004-2006 Craig Edwards <craigedwards@brainbox.cc>
* Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
*
* 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/>.
*/
#include "inspircd.h"
class ModuleOverride : public Module
{
bool RequireKey;
bool NoisyOverride;
ChanModeReference topiclock;
ChanModeReference inviteonly;
ChanModeReference key;
ChanModeReference limit;
static bool IsOverride(unsigned int userlevel, const std::string& modeline)
{
for (std::string::const_iterator i = modeline.begin(); i != modeline.end(); ++i)
{
ModeHandler* mh = ServerInstance->Modes->FindMode(*i, MODETYPE_CHANNEL);
if (!mh)
continue;
if (mh->GetLevelRequired() > userlevel)
return true;
}
return false;
}
public:
ModuleOverride()
: topiclock(this, "topiclock")
, inviteonly(this, "inviteonly")
, key(this, "key")
, limit(this, "limit")
{
}
void init() CXX11_OVERRIDE
{
ServerInstance->SNO->EnableSnomask('v', "OVERRIDE");
}
void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
{
// re-read our config options
ConfigTag* tag = ServerInstance->Config->ConfValue("override");
NoisyOverride = tag->getBool("noisy");
RequireKey = tag->getBool("requirekey");
}
void On005Numeric(std::map<std::string, std::string>& tokens) CXX11_OVERRIDE
{
tokens["OVERRIDE"];
}
bool CanOverride(User* source, const char* token)
{
std::string tokenlist = source->oper->getConfig("override");
// its defined or * is set, return its value as a boolean for if the token is set
return ((tokenlist.find(token, 0) != std::string::npos) || (tokenlist.find("*", 0) != std::string::npos));
}
ModResult OnPreTopicChange(User *source, Channel *channel, const std::string &topic) CXX11_OVERRIDE
{
if (IS_LOCAL(source) && source->IsOper() && CanOverride(source, "TOPIC"))
{
if (!channel->HasUser(source) || (channel->IsModeSet(topiclock) && channel->GetPrefixValue(source) < HALFOP_VALUE))
{
ServerInstance->SNO->WriteGlobalSno('v',source->nick+" used oper override to change a topic on "+channel->name);
}
// Explicit allow
return MOD_RES_ALLOW;
}
return MOD_RES_PASSTHRU;
}
ModResult OnUserPreKick(User* source, Membership* memb, const std::string &reason) CXX11_OVERRIDE
{
if (source->IsOper() && CanOverride(source,"KICK"))
{
// If the kicker's status is less than the target's, or the kicker's status is less than or equal to voice
if ((memb->chan->GetPrefixValue(source) < memb->getRank()) || (memb->chan->GetPrefixValue(source) <= VOICE_VALUE))
{
ServerInstance->SNO->WriteGlobalSno('v',source->nick+" used oper override to kick "+memb->user->nick+" on "+memb->chan->name+" ("+reason+")");
return MOD_RES_ALLOW;
}
}
return MOD_RES_PASSTHRU;
}
ModResult OnPreMode(User* source,User* dest,Channel* channel, const std::vector<std::string>& parameters) CXX11_OVERRIDE
{
if (!channel)
return MOD_RES_PASSTHRU;
if (!source->IsOper() || !IS_LOCAL(source))
return MOD_RES_PASSTHRU;
unsigned int mode = channel->GetPrefixValue(source);
if (!IsOverride(mode, parameters[1]))
return MOD_RES_PASSTHRU;
if (CanOverride(source, "MODE"))
{
std::string msg = source->nick+" overriding modes:";
for(unsigned int i=0; i < parameters.size(); i++)
msg += " " + parameters[i];
ServerInstance->SNO->WriteGlobalSno('v',msg);
return MOD_RES_ALLOW;
}
return MOD_RES_PASSTHRU;
}
ModResult OnUserPreJoin(LocalUser* user, Channel* chan, const std::string& cname, std::string& privs, const std::string& keygiven) CXX11_OVERRIDE
{
if (user->IsOper())
{
if (chan)
{
if (chan->IsModeSet(inviteonly) && (CanOverride(user,"INVITE")))
{
if (!IS_LOCAL(user)->IsInvited(chan))
{
if (RequireKey && keygiven != "override")
{
// Can't join normally -- must use a special key to bypass restrictions
user->WriteNotice("*** You may not join normally. You must join with a key of 'override' to oper override.");
return MOD_RES_PASSTHRU;
}
if (NoisyOverride)
chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper override to bypass invite-only", cname.c_str(), user->nick.c_str());
ServerInstance->SNO->WriteGlobalSno('v', user->nick+" used oper override to bypass +i on " + cname);
}
return MOD_RES_ALLOW;
}
if (chan->IsModeSet(key) && (CanOverride(user,"KEY")) && keygiven != chan->GetModeParameter(key))
{
if (RequireKey && keygiven != "override")
{
// Can't join normally -- must use a special key to bypass restrictions
user->WriteNotice("*** You may not join normally. You must join with a key of 'override' to oper override.");
return MOD_RES_PASSTHRU;
}
if (NoisyOverride)
chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper override to bypass the channel key", cname.c_str(), user->nick.c_str());
ServerInstance->SNO->WriteGlobalSno('v', user->nick+" used oper override to bypass +k on " + cname);
return MOD_RES_ALLOW;
}
if (chan->IsModeSet(limit) && (chan->GetUserCounter() >= ConvToInt(chan->GetModeParameter(limit))) && (CanOverride(user,"LIMIT")))
{
if (RequireKey && keygiven != "override")
{
// Can't join normally -- must use a special key to bypass restrictions
user->WriteNotice("*** You may not join normally. You must join with a key of 'override' to oper override.");
return MOD_RES_PASSTHRU;
}
if (NoisyOverride)
chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper override to bypass the channel limit", cname.c_str(), user->nick.c_str());
ServerInstance->SNO->WriteGlobalSno('v', user->nick+" used oper override to bypass +l on " + cname);
return MOD_RES_ALLOW;
}
if (chan->IsBanned(user) && CanOverride(user,"BANWALK"))
{
if (RequireKey && keygiven != "override")
{
// Can't join normally -- must use a special key to bypass restrictions
user->WriteNotice("*** You may not join normally. You must join with a key of 'override' to oper override.");
return MOD_RES_PASSTHRU;
}
if (NoisyOverride)
chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper override to bypass channel ban", cname.c_str(), user->nick.c_str());
ServerInstance->SNO->WriteGlobalSno('v',"%s used oper override to bypass channel ban on %s", user->nick.c_str(), cname.c_str());
return MOD_RES_ALLOW;
}
}
}
return MOD_RES_PASSTHRU;
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Provides support for allowing opers to override certain things",VF_VENDOR);
}
};
MODULE_INIT(ModuleOverride)
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