595 lines
14 KiB
C++
595 lines
14 KiB
C++
/**
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* BANCommand.cc
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*
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* 13/01/2001 - Greg Sikorski <gte@atomicrevs.demon.co.uk>
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* Initial Version.
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* 20/01/2001 - David Henriksen <david@itwebnet.dk>
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* BAN Command started.
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* 23/01/2001 - Greg Sikorski <gte@atomicrevs.demon.co.uk>
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* Cleanups/rewrites - don't allow adding of less specific bans.
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* 10/02/2001 - David Henriksen <david@itwebnet.dk>
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* Minor bug fixes.
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* 01/03/01 - Daniel Simard <svr@undernet.org>
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* Fixed Language module stuff.
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* 2001-03-16: Perry Lorier <isomer@coders.net>
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* Fixed ban's without a reason defaulting to level 75
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*
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* Bans a user on a channel, adds this ban to the internal banlist.
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*
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* Caveats: None.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*
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* $Id: BANCommand.cc,v 1.49 2009/06/25 19:05:23 mrbean_ Exp $
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*/
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#include <new>
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#include <string>
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#include <sstream>
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#include <iostream>
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#include <cassert>
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#include "StringTokenizer.h"
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#include "cservice.h"
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#include "Network.h"
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#include "levels.h"
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#include "misc.h"
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#include "responses.h"
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#include "match.h"
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#include "ip.h"
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#include "cidr.h"
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const char BANCommand_cc_rcsId[] = "$Id: BANCommand.cc,v 1.49 2009/06/25 19:05:23 mrbean_ Exp $" ;
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namespace gnuworld
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{
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using std::string ;
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using std::endl ;
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using std::ends ;
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using std::stringstream ;
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using namespace level;
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bool BANCommand::Exec( iClient* theClient, const string& Message )
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{
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bot->incStat("COMMANDS.BAN");
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StringTokenizer st( Message ) ;
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if( st.size() < 3 )
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{
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Usage(theClient);
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return true;
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}
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/* Is the user authorised? */
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sqlUser* theUser = bot->isAuthed(theClient, true);
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if(!theUser)
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{
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return false;
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}
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/* Do not allow bans on * channel */
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if(st[1][0] != '#')
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{
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bot->Notice(theClient,
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bot->getResponse(theUser,
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language::inval_chan_name).c_str());
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return false;
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}
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/* Is the channel registered? */
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sqlChannel* theChan = bot->getChannelRecord(st[1]);
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if(!theChan)
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{
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bot->Notice(theClient,
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bot->getResponse(
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theUser,
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language::chan_not_reg).c_str(),
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st[1].c_str());
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return false;
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}
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/* Check the bot is in the channel. */
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if (!theChan->getInChan())
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{
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bot->Notice(
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theClient,
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bot->getResponse(theUser,
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language::i_am_not_on_chan).c_str()
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);
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return false;
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}
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/*
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* Check the channel currently exists on the network, if so - we can
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* start kicking.
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*/
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Channel* theChannel = Network->findChannel(theChan->getName());
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if (!theChannel)
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{
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bot->Notice(theClient,
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bot->getResponse(theUser, language::chan_is_empty).c_str(),
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theChan->getName().c_str());
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return false;
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}
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/*
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* Check we're actually opped first..
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*/
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ChannelUser* tmpBotUser = theChannel->findUser(bot->getInstance());
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if (!tmpBotUser) return false;
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if(!tmpBotUser->getMode(ChannelUser::MODE_O))
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{
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bot->Notice(theClient, bot->getResponse(theUser,
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language::im_not_opped, "I'm not opped in %s").c_str(),
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theChan->getName().c_str());
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return false;
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}
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int oCount = 0;
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unsigned int banTime = (3*3600);
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int banLevel = 75;
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string banReason = "No Reason";
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if(st.size() >= 6) oCount = 3;
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if(st.size() == 5) oCount = 2;
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if(st.size() == 4) oCount = 1;
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switch(oCount)
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{
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case 1:
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{
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/*
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* Just one parameter supplied, its either a duration,
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* or we'll also accept a reason and set defaults.
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*/
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if(!IsTimeSpec(st[3]))
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{
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banReason = st.assemble(3);
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}
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else
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{
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banTime = extractTime(st[3], 3600);
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}
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break;
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}
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case 2:
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{
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/*
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* Two parameters supplied, it's either reason,
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* duration + reason or duration and level.
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*/
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if(!IsTimeSpec(st[3]))
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{
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/* first param is not duration, must be reason */
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banReason = st.assemble(3);
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break;
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}
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if(!IsNumeric(st[4]))
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{
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/* first param IS duration (see above), 2nd param is
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* NOT level - must be reason
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*/
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banReason = st.assemble(4);
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banTime = extractTime(st[3], 3600);
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break;
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}
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/* if we reach here, first param is duration, 2nd param is level
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* and no reason is specified.
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*/
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banTime = extractTime(st[3], 3600);
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banLevel = atoi(st[4].c_str());
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break;
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}
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case 3:
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{
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/*
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* All parameters supplied, it's either reason, duration +
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* reason or duration + level + reason.
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*/
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if(!IsTimeSpec(st[3]))
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{
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/* first param is NOT duration, must be reason */
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banReason = st.assemble(3);
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break;
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}
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if(!IsNumeric(st[4]))
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{
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/* first param IS duration (see above), 2nd param is
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* NOT level - must be reason.
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*/
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banReason = st.assemble(4);
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banTime = extractTime(st[3], 3600);
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break;
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}
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/* if we reach here, we have duration, level and reason */
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banTime = extractTime(st[3], 3600);
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banLevel = atoi(st[4].c_str());
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banReason = st.assemble(5);
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break;
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}
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} // switch()
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// Check level.
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int level = bot->getEffectiveAccessLevel(theUser, theChan, true);
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if(level < level::ban)
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{
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bot->Notice(theClient,
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bot->getResponse(theUser,
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language::insuf_access).c_str()
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);
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return false;
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}
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// TODO: Violation of the rule of numbers
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if(banLevel < 1 || banLevel > level || 500 < banLevel)
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{
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bot->Notice(theClient,
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bot->getResponse(theUser,language::ban_level_range).c_str(),
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(500 < level) ? 500 : level);
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return true;
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}
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//if(banTime > 0 || banTime > bot->getConfigVar("MAX_BAN_DURATION")->asInt())
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//if((banTime < 300) && (banTime > 0)) || banTime > bot->getConfigVar("MAX_BAN_DURATION")->asInt())
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if ((banTime < 0) || ((banTime < 300) && (banTime > 0)) || banTime > bot->getConfigVar("MAX_BAN_DURATION")->asInt())
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{
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// int maxbanhours = (bot->getConfigVar("MAX_BAN_DURATION")->asInt() / 3600);
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int maxbanhours = (bot->getConfigVar("MAX_BAN_DURATION")->asInt() / 86400);
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bot->Notice(theClient,
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bot->getResponse(theUser,
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language::ban_duration).c_str(),
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maxbanhours
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);
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return true;
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}
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//int max_ban_reason_length = bot->getConfigVar("MAX_BAN_REASON_LENGTH")->asInt();
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// TODO: Violation of the rule of numbers
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if(banReason.size() > 300)
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//if((banReason.size() > max_ban_reason_length)
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{
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bot->Notice(theClient,
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bot->getResponse(theUser,
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language::ban_reason_size).c_str()
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// language::ban_reason_size).c_str(),max_ban_reason_length);
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);
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return true;
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}
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/* check if the banlist is full */
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int max_bans = 0;
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int global_max_bans = bot->getConfigVar("MAX_BANS")->asInt();
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int local_max_bans = theChan->getMaxBans();
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if (local_max_bans > global_max_bans)
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max_bans = local_max_bans;
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else
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max_bans = global_max_bans;
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int ban_count = 0;
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if (max_bans > 0)
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{
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/* if we have a max ban limit, get a count of the bans */
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std::map < int,sqlBan* >::iterator ptr = theChan->banList.begin();
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while (ptr != theChan->banList.end())
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{
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ban_count++; /* increment ban counter */
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++ptr;
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}
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if (ban_count >= max_bans)
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{
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/* banlist is full */
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bot->Notice(theClient, "Sorry, The channel banlist is full (%i bans)",
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ban_count);
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return true;
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}
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}
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StringTokenizer st2( st[2], ',' );
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StringTokenizer::size_type counter = 0;
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//int max_multibans = bot->getConfigVar("MAX_MULTIBANS")->asInt();
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int max_multibans = 10;
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if (st2.size() > max_multibans)
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{
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bot->Notice(theClient, "Sorry, you can only add %i bans with one BAN command.",
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max_multibans);
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return true;
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}
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if ((st2.size() + ban_count) > max_bans)
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{
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bot->Notice(theClient, "Sorry, the channel banlist is full (%i set, adding %i, maximum %i)",
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ban_count, st2.size(), max_bans);
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return true;
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}
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bool flagNoTake = false;
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#ifdef USE_NOTAKE
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if (theChan->getFlag(sqlChannel::F_NOTAKE))
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flagNoTake = true;
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#endif
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for( ; counter < st2.size() ; counter++ ) {
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string banTarget = st2[counter];
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elog << "ST " << counter << ": " << st2[counter] << endl;
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// *** Take Over Protection ***
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bool takeOver = false;
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if (level < 500)
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if (!matchall(banTarget) && validUserMask(banTarget) && ((banLevel >= 75) && (flagNoTake)))
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{
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//Revenge is Ignore
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if (theChan->getNoTake() == 1) return true;
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takeOver = true;
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unsigned short banLevel = (unsigned short)level::set::notake;
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unsigned int banExpire = 100 * 86400;
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banReason = "### Take Over Triggered ###";
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string suspendReason = "\002*** TAKE OVER ATTEMPT ***\002";
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if (theChan->getNoTake() > 1)
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bot->doInternalBanAndKick(theChan, theClient, banLevel, banExpire, banReason);
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if (theChan->getNoTake() > 2)
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bot->doInternalSuspend(theChan, theClient, banLevel, banExpire, suspendReason);
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return true;
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}
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// *** End of Take Over Protection part ****
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bool isNick = bot->validUserMask( banTarget ) ? false : true ;
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if( isNick )
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{
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iClient* aNick = Network->findNick(banTarget);
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if(!aNick)
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{
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bot->Notice(theClient,
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bot->getResponse(theUser,
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language::cant_find_on_chan).c_str(),
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st2[counter].c_str(), theChan->getName().c_str()
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);
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continue;
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}
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/* Ban and kick this user */
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banTarget = Channel::createUniformBan(aNick);
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}
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/*
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* Get a list of all bans on this channel, try and match this ban and
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* find overlapping bans.
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*/
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xCIDR cidr = xCIDR(banTarget);
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std::map < int,sqlBan* >::iterator ptr = theChan->banList.begin();
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vector <sqlBan*> oldBans;
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bool banExists = false;
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while (ptr != theChan->banList.end())
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{
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sqlBan* theBan = ptr->second;
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if(string_lower(banTarget) == string_lower(theBan->getBanMask()))
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{
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bot->Notice(theClient,
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bot->getResponse(theUser,
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language::ban_exists).c_str()
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);
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banExists = true;
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break;
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}
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if(!cidr.GetValid())
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{
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/*
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* Overlapping ban? We just remove the ban from our internal tables, as
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* setting this ban to ircu will cause a default removal of overlapping
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* bans.
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*/
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// Matched overlapping ban.
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if(match(banTarget, theBan->getBanMask()) == 0)
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{
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// If we have access to remove the overlapper..
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if (theBan->getLevel() <= level)
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{
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// Update GNUWorld.
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oldBans.push_back(theBan);
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}
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}
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// More specific ban?
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else if ( match(theBan->getBanMask(), banTarget) == 0)
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{
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bot->Notice(theClient,
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bot->getResponse(theUser,
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language::ban_covered).c_str(),
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banTarget.c_str(), theBan->getBanMask().c_str());
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banExists = true;
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break;
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}
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// Carry on regardless.
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} //cidr.GetValid
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++ptr;
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} // while()
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if (banExists) { continue; }
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/*
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Go over the bans that needs to be removed
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and remove them
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*/
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vector<sqlBan*>::iterator banIterator = oldBans.begin();
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for( ; banIterator != oldBans.end() ; ++banIterator )
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{
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sqlBan* theBan = *banIterator;
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// First, remove the ban from the gnuworld::Channel
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if( !theChannel->removeBan(theBan->getBanMask()) )
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{
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elog << "cservice::BANCommand> Unable to find "
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<< "ban: "
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<< theBan->getBanMask()
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<< endl ;
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continue ;
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}
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// Lookup the ban in the sqlBan table in mod.cservice
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sqlChannel::sqlBanMapType::iterator sqlBanIterator =
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theChan->banList.find( theBan->getID() ) ;
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if( sqlBanIterator == theChan->banList.end() )
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{
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elog << "cservice::BANCommand> Unable to find "
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<< "ban in sqlChannel, id "
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<< theBan->getID()
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<< ", mask: "
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<< theBan->getBanMask()
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<< endl ;
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continue ;
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}
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// Erase the sqlBan from the cservice ban table
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theChan->banList.erase( sqlBanIterator );
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// Erase the ban from the database
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theBan->deleteRecord();
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// Free allocated memory
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delete(theBan); theBan = 0 ;
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}
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// TODO: Violation of rule of numbers
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if (banLevel == 42)
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{
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// TODO: Perhaps put this into the .conf
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banReason = "..I'll have a pan-galactic gargleblaster please!";
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}
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/*
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* Fill out new ban details.
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*/
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sqlBan* newBan = new (std::nothrow) sqlBan(bot->SQLDb);
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assert( newBan != 0 ) ;
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// TODO: Use a decent constructor for this
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newBan->setChannelID(theChan->getID());
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newBan->setBanMask(banTarget);
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if (flagNoTake)
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{
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if (takeOver)
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newBan->setSetBy("");
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else
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newBan->setSetBy(theUser->getUserName());
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}
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else
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newBan->setSetBy(theUser->getUserName());
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newBan->setSetTS(bot->currentTime());
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newBan->setLevel(banLevel);
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//Leave 0 to 0, meaning a permanent ban.
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if (banTime > 0)
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banTime = banTime + bot->currentTime();
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//newBan->setExpires(banTime+bot->currentTime());
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newBan->setExpires(banTime);
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newBan->setReason(banReason);
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vector< iClient* > clientsToKick ;
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for(Channel::userIterator chanUsers = theChannel->userList_begin();
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chanUsers != theChannel->userList_end(); ++chanUsers)
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{
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ChannelUser* tmpUser = chanUsers->second;
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/*
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* Iterate over channel members, find a match and boot them..
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*/
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if( newBan->getMatcher()->matches(tmpUser->getClient()) )
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{
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/* Don't kick +k things */
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if( !tmpUser->getClient()->getMode(iClient::MODE_SERVICES) )
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{
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clientsToKick.push_back(tmpUser->getClient());
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}
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}
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} // for()
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/*
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* If this ban level is < 75, we don't kick the user, we simply don't
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* allow any of the matching hosts to be opped anymore.
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*/
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// TODO: Violation of rule of numbers
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if (banLevel < 75)
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{
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|
bot->DeOp(theChannel, clientsToKick);
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Otherwise, > 100 bans result in the user being kicked out
|
|
* and a ban placed on the channel.
|
|
*/
|
|
string finalReason = "(" + theUser->getUserName() + ") " + banReason;
|
|
if( !clientsToKick.empty() )
|
|
{
|
|
/* ban them */
|
|
bot->Write("%s M %s +b :%s",
|
|
bot->getCharYYXXX().c_str(),
|
|
theChannel->getName().c_str(),
|
|
banTarget.c_str());
|
|
|
|
/* add ban to channel banlist */
|
|
theChannel->setBan(banTarget);
|
|
|
|
/* kick the users */
|
|
bot->Kick( theChannel, clientsToKick, finalReason ) ;
|
|
}
|
|
}
|
|
|
|
|
|
//theChan->banList[newBan->getID()] = newBan;
|
|
|
|
/* Insert this new record into the database. */
|
|
newBan->insertRecord();
|
|
|
|
/* Insert to our internal List. */
|
|
theChan->banList.insert(std::map<int,sqlBan*>::value_type(newBan->getID(),newBan));
|
|
|
|
bot->Notice(theClient,
|
|
bot->getResponse(theUser, language::ban_added, "Added ban %s to %s at level %i").c_str(),
|
|
newBan->getBanMask().c_str(),
|
|
theChannel->getName().c_str(),
|
|
newBan->getLevel());
|
|
}
|
|
return true ;
|
|
}
|
|
|
|
} // Namespace GNUWorld.
|