/*
* File : TorrentDownloaderImpl.java
* Created : 28-Feb-2004
* By : parg
*
* Azureus - a Java Bittorrent client
*
* 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.
*
* 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 ( see the LICENSE file ).
*
* 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
*/
package org.gudy.azureus2.pluginsimpl.local.torrent;
/**
* @author parg
*
*/
import java.net.*;
import java.util.Locale;
import java.io.*;
import org.gudy.azureus2.plugins.torrent.*;
import org.gudy.azureus2.plugins.utils.resourcedownloader.*;
import org.gudy.azureus2.pluginsimpl.local.utils.resourcedownloader.ResourceDownloaderFactoryImpl;
import org.gudy.azureus2.core3.logging.*;
import org.gudy.azureus2.core3.torrent.*;
import org.gudy.azureus2.core3.util.*;
public class
TorrentDownloaderImpl
implements TorrentDownloader
{
private static final LogIDs LOGID = LogIDs.PLUGIN;
protected TorrentManagerImpl manager;
protected URL url;
protected ResourceDownloader _downloader;
protected boolean encoding_requested;
protected String requested_encoding;
protected boolean set_encoding;
protected
TorrentDownloaderImpl(
TorrentManagerImpl _manager,
URL _url )
{
manager = _manager;
url = _url;
_downloader = ResourceDownloaderFactoryImpl.getSingleton().create( url );
}
protected
TorrentDownloaderImpl(
TorrentManagerImpl _manager,
URL _url,
String _user_name,
String _password )
{
manager = _manager;
url = _url;
// assumption here is that if we have a user name and password supplied
// then user-interaction is NOT required. Thus we set the default encoding
// to ensure that in the unlikely event of the torrent having multiple
// encodings the SWT UI isn't kicked off to get an encoding when the user
// is absent.
set_encoding = true;
_downloader = ResourceDownloaderFactoryImpl.getSingleton().create( url, _user_name, _password );
_downloader.addListener(new ResourceDownloaderAdapter() {
public void reportActivity(ResourceDownloader downloader, String activity) {
if (Logger.isEnabled())
Logger.log(new LogEvent(LOGID, "TorrentDownloader:" + activity));
}
});
}
public Torrent
download()
throws TorrentException
{
try{
return( downloadSupport( _downloader ));
}catch( TorrentException e ){
if ( url.getProtocol().toLowerCase( Locale.US ).startsWith( "http" )){
ResourceDownloader rd = _downloader.getClone();
// try with referer
UrlUtils.setBrowserHeaders( rd, url.toExternalForm());
return( downloadSupport( rd ));
}else{
throw( e );
}
}
}
private Torrent
downloadSupport(
ResourceDownloader downloader )
throws TorrentException
{
InputStream is = null;
try{
is = downloader.download();
TOTorrent torrent = TOTorrentFactory.deserialiseFromBEncodedInputStream(is);
if ( encoding_requested ){
manager.tryToSetTorrentEncoding( torrent, requested_encoding );
}else{
if ( set_encoding ){
manager.tryToSetDefaultTorrentEncoding( torrent );
}
}
return( new TorrentImpl(torrent ));
}catch( TorrentException e ){
throw( e );
}catch( ResourceDownloaderException e ){
throw( new TorrentException( e ));
}catch( Throwable e ){
throw( new TorrentException( "TorrentDownloader: download fails", e ));
}finally{
if ( is != null ){
try{
is.close();
}catch( IOException e ){
Debug.printStackTrace( e );
}
}
}
}
public Torrent
download(
String encoding )
throws TorrentException
{
encoding_requested = true;
requested_encoding = encoding;
return( download());
}
public void setRequestProperty(String key, Object value)
throws TorrentException {
if (_downloader != null) {
try {
_downloader.setProperty(key, value);
} catch (ResourceDownloaderException e) {
throw new TorrentException(e);
}
}
}
public Object getRequestProperty(String key)
throws TorrentException {
if (_downloader != null) {
try {
return _downloader.getProperty(key);
} catch (ResourceDownloaderException e) {
throw new TorrentException(e);
}
}
return null;
}
}