/*
* Created on 06-Jul-2004
* Created by Paul Gardner
* Copyright (C) 2004, 2005, 2006 Aelitis, All Rights Reserved.
*
* This program 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; either version 2
* of the License, or (at your option) any later version.
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* AELITIS, SAS au capital de 46,603.30 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/
package com.aelitis.azureus.plugins.removerules;
/**
* @author parg
*
*/
import java.net.InetAddress;
import java.util.*;
import org.gudy.azureus2.plugins.torrent.*;
import org.gudy.azureus2.plugins.download.*;
import org.gudy.azureus2.plugins.logging.LoggerChannel;
import org.gudy.azureus2.plugins.ui.config.*;
import org.gudy.azureus2.plugins.ui.model.BasicPluginConfigModel;
import org.gudy.azureus2.plugins.*;
import org.gudy.azureus2.core3.util.*;
public class
DownloadRemoveRulesPlugin
implements Plugin, DownloadManagerListener, HostNameToIPResolverListener
{
public static final int INITIAL_DELAY = 60*1000;
public static final int DELAYED_REMOVAL_PERIOD = 60*1000;
public static final int AELITIS_BIG_TORRENT_SEED_LIMIT = 10000;
public static final int AELITIS_SMALL_TORRENT_SEED_LIMIT = 1000;
public static final int MAX_SEED_TO_PEER_RATIO = 10; // 10 to 1
public static final String AELITIS_HOST_CORE = "aelitis.com"; // needs to be lowercase
public static final String AELITIS_TRACKER = "tracker.aelitis.com"; // needs to be lowercase
protected String aelitis_ip;
protected PluginInterface plugin_interface;
protected boolean closing;
protected Map dm_listener_map = new HashMap(10);
protected List monitored_downloads = new ArrayList();
protected LoggerChannel log;
protected BooleanParameter remove_unauthorised;
protected BooleanParameter remove_unauthorised_seeding_only;
protected BooleanParameter remove_update_torrents;
public void
initialize(
PluginInterface _plugin_interface )
{
plugin_interface = _plugin_interface;
HostNameToIPResolver.addResolverRequest( AELITIS_TRACKER, this );
plugin_interface.getPluginProperties().setProperty( "plugin.version", "1.0" );
plugin_interface.getPluginProperties().setProperty( "plugin.name", "Download Remove Rules" );
log = plugin_interface.getLogger().getChannel("DLRemRules");
BasicPluginConfigModel config = plugin_interface.getUIManager().createBasicPluginConfigModel( "torrents", "download.removerules.name" );
config.addLabelParameter2( "download.removerules.unauthorised.info" );
remove_unauthorised =
config.addBooleanParameter2( "download.removerules.unauthorised", "download.removerules.unauthorised", false );
remove_unauthorised_seeding_only =
config.addBooleanParameter2( "download.removerules.unauthorised.seedingonly", "download.removerules.unauthorised.seedingonly", true );
remove_unauthorised.addEnabledOnSelection( remove_unauthorised_seeding_only );
remove_update_torrents =
config.addBooleanParameter2( "download.removerules.updatetorrents", "download.removerules.updatetorrents", true );
new DelayedEvent(
"DownloadRemovalRules",
INITIAL_DELAY,
new AERunnable()
{
public void
runSupport()
{
plugin_interface.getDownloadManager().addListener( DownloadRemoveRulesPlugin.this );
}
});
}
public void
hostNameResolutionComplete(
InetAddress address )
{
// resolution will fail if disconnected from net
if ( address != null ){
aelitis_ip = address.getHostAddress();
}
}
public void
downloadAdded(
final Download download )
{
// we don't auto-remove non-persistent downloads as these are managed
// elsewhere (e.g. shares)
if ( !download.isPersistent()){
return;
}
DownloadTrackerListener listener =
new DownloadTrackerListener()
{
public void
scrapeResult(
DownloadScrapeResult response )
{
if ( closing ){
return;
}
handleScrape( download, response );
}
public void
announceResult(
DownloadAnnounceResult response )
{
if ( closing ){
return;
}
handleAnnounce( download, response );
}
};
monitored_downloads.add( download );
dm_listener_map.put( download, listener );
download.addTrackerListener( listener );
}
protected void
handleScrape(
Download download,
DownloadScrapeResult response )
{
String status = response.getStatus();
if ( status == null ){
status = "";
}
handleAnnounceScrapeStatus( download, status );
}
protected void
handleAnnounce(
Download download,
DownloadAnnounceResult response )
{
String reason = "";
if ( response.getResponseType() == DownloadAnnounceResult.RT_ERROR ){
reason = response.getError();
if ( reason == null ){
reason = "";
}
}
handleAnnounceScrapeStatus( download, reason );
}
protected void
handleAnnounceScrapeStatus(
Download download,
String status )
{
if ( !monitored_downloads.contains( download )){
return;
}
status = status.toLowerCase();
boolean download_completed = download.isComplete();
if ( status.indexOf( "not authori" ) != -1 ||
status.toLowerCase().indexOf( "unauthori" ) != -1 ){
if ( remove_unauthorised.getValue() &&
( (!remove_unauthorised_seeding_only.getValue()) ||
download_completed )){
log.log(download.getTorrent(), LoggerChannel.LT_INFORMATION, "Download '"
+ download.getName() + "' is unauthorised and removal triggered");
removeDownload( download );
return;
}
}
Torrent torrent = download.getTorrent();
if ( torrent != null && torrent.getAnnounceURL() != null ){
String url_string = torrent.getAnnounceURL().toString().toLowerCase();
if ( url_string.indexOf( AELITIS_HOST_CORE ) != -1 ||
( aelitis_ip != null && url_string.indexOf( aelitis_ip ) != -1 )){
// emergency instruction from tracker
if ( ( download_completed && status.indexOf( "too many seeds" ) != -1 ) ||
status.indexOf( "too many peers" ) != -1 ){
log.log(download.getTorrent(), LoggerChannel.LT_INFORMATION,
"Download '" + download.getName()
+ "' being removed on instruction from the tracker");
removeDownloadDelayed( download );
}else if ( download_completed && remove_update_torrents.getValue()){
long seeds = download.getLastScrapeResult().getSeedCount();
long peers = download.getLastScrapeResult().getNonSeedCount();
// try to maintain an upper bound on seeds that isn't going to
// kill the tracker
if ( seeds / ( peers==0?1:peers ) > MAX_SEED_TO_PEER_RATIO ){
log.log(download.getTorrent(), LoggerChannel.LT_INFORMATION,
"Download '" + download.getName()
+ "' being removed to reduce swarm size");
removeDownloadDelayed( download );
}else{
long creation_time = download.getCreationTime();
long running_mins = ( SystemTime.getCurrentTime() - creation_time )/(60*1000);
if ( running_mins > 15 ){
// big is a relative term here and generally distinguishes between core updates
// and plugin updates
boolean big_torrent = torrent.getSize() > 1024*1024;
if ( ( seeds > AELITIS_BIG_TORRENT_SEED_LIMIT && big_torrent ) ||
( seeds > AELITIS_SMALL_TORRENT_SEED_LIMIT && !big_torrent )){
log.log( "Download '" + download.getName() + "' being removed to reduce swarm size" );
removeDownloadDelayed( download );
}
}
}
}
}
}
}
protected void
removeDownloadDelayed(
final Download download )
{
monitored_downloads.remove( download );
// we need to delay this because other actions may be being performed
// on the download (e.g. completion may trigger update install)
plugin_interface.getUtilities().createThread(
"delayedRemoval",
new AERunnable()
{
public void
runSupport()
{
try{
Thread.sleep(DELAYED_REMOVAL_PERIOD);
removeDownload( download );
}catch( Throwable e ){
Debug.printStackTrace( e );
}
}
});
}
protected void
removeDownload(
final Download download )
{
monitored_downloads.remove( download );
if ( download.getState() == Download.ST_STOPPED ){
try{
download.remove();
}catch( Throwable e ){
log.logAlert( "Automatic removal of download '" + download.getName() + "' failed", e );
}
}else{
download.addListener(
new DownloadListener()
{
public void
stateChanged(
Download download,
int old_state,
int new_state )
{
log.log(download.getTorrent(), LoggerChannel.LT_INFORMATION,
"download state changed to '" + new_state + "'");
if ( new_state == Download.ST_STOPPED ){
try{
download.remove();
String msg =
plugin_interface.getUtilities().getLocaleUtilities().getLocalisedMessageText(
"download.removerules.removed.ok",
new String[]{ download.getName() });
log.logAlert(
LoggerChannel.LT_INFORMATION,
msg );
}catch( Throwable e ){
log.logAlert( "Automatic removal of download '" + download.getName() + "' failed", e );
}
}
}
public void
positionChanged(
Download download,
int oldPosition,
int newPosition )
{
}
});
try{
download.stop();
}catch( DownloadException e ){
log.logAlert( "Automatic removal of download '" + download.getName() + "' failed", e );
}
}
}
public void
downloadRemoved(
Download download )
{
monitored_downloads.remove( download );
DownloadTrackerListener listener = (DownloadTrackerListener)dm_listener_map.remove(download);
if ( listener != null ){
download.removeTrackerListener( listener );
}
}
public void
destroyInitiated()
{
closing = true;
}
public void
destroyed()
{
}
}
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