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package org.openslx.satellitedaemon.ftp;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.util.List;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;

import org.apache.log4j.Logger;
import org.openslx.filetransfer.Downloader;
import org.openslx.imagemaster.thrift.iface.DownloadInfos;
import org.openslx.satellitedaemon.Globals;
import org.openslx.satellitedaemon.Globals.PropInt;
import org.openslx.satellitedaemon.Globals.PropString;
import org.openslx.satellitedaemon.db.DbImage;

public class FtpDownloadWorker implements Runnable
{
	private static Logger log = Logger.getLogger( FtpUploadWorker.class );

	@Override
	public void run()
	{
		while ( true ) {
			List<DbImage> imageList = DbImage.getAllMarkedForDownload();
			log.info( "FtpDownloadWorker: imageList Contains " + imageList.size() + " items." );
			for ( DbImage image : imageList ) {

				DownloadInfos downInfos = ThriftConnection.getDownloadInfos( image );
				if ( downInfos == null ) {
					log.error( "The DownloadInfos returned by ThriftConnection class are null" );
				}

				char[] passphrase = Globals.getPropertyString( PropString.FTPSKEYSTOREPWD ).toCharArray();
				KeyStore keystore;
				try {
					keystore = KeyStore.getInstance( "JKS" );
					keystore.load( new FileInputStream( Globals.getPropertyString( PropString.FTPSKEYSTOREPATH ) ), passphrase );
					TrustManagerFactory tmf = TrustManagerFactory.getInstance( TrustManagerFactory.getDefaultAlgorithm() );
					tmf.init( keystore );
					SSLContext context = SSLContext.getInstance( "SSLv3" );
					TrustManager[] trustManagers = tmf.getTrustManagers();
					context.init( null, trustManagers, null );

					Downloader d = new Downloader( Globals.getPropertyString( PropString.FTPSERVERIP ), Globals.getPropertyInt( PropInt.FTPPORT ), context );
					d.sendToken( downInfos.token );
					while ( d.readMetaData() )
						d.readBinary();
				} catch ( NoSuchAlgorithmException e ) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} catch ( CertificateException e ) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} catch ( FileNotFoundException e ) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} catch ( IOException e ) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} 	catch ( KeyStoreException e ) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} catch ( KeyManagementException e ) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}


				//				try {
				//					TrustManagerFactory trustManagerFactory = TrustManagerFactory
				//							.getInstance( KeyManagerFactory.getDefaultAlgorithm() );
				//					KeyStore keystore = KeyStore.getInstance( Globals.getPropertyString( PropString.KEYSTORETYPE ) );
				//					keystore.load( new FileInputStream( new File(
				//							Globals.getPropertyString( PropString.FTPSKEYSTOREPATH ) ) ),
				//							Globals.getPropertyString( PropString.FTPSKEYSTOREPWD ).toCharArray() );
				//					trustManagerFactory.init( keystore );
				//					TrustManager trustManager = trustManagerFactory.getTrustManagers()[0];
				//					FTPSClient ftpClient = new FTPSClient( "SSL", true );
				//					ftpClient.setTrustManager( trustManager );
				//					try {
				//						ftpClient.connect( Globals.getPropertyString( PropString.FTPSERVERIP ), Globals.getPropertyInt( PropInt.FTPPORT ) );
				//						if ( !ftpClient.login( ftpc.username, ftpc.password ) ) {
				//							log.error( "FTP problem. Coundn't log in!" );
				//						}
				//						File file = new File( "/tmp/" + image.guid + ".vmdk");
				//						ftpClient.setFileType( FTP.BINARY_FILE_TYPE );
				//						log.info( "FtpDownloadWorker: ftpc.filename: " + ftpc.filename );
				//						InputStream is = ftpClient.retrieveFileStream( ftpc.filename );
				//						FileOutputStream fos = new FileOutputStream( file );
				//						int b;
				//						while ((b = is.read()) != -1) {
				//							fos.write( b );
				//						}
				//						is.close();
				//						fos.close();
				//						ThriftConnection.finishedDownload( ftpc.username);
				//
				//					} catch (IOException e) {
				//						log.error("FtpDownloadWorker: Error creating the FileInputStream");
				//					}
				//					finally {
				//						ftpClient.disconnect();
				//						log.info( "FtpDownloadWorker: ftpClient disconnected" );
				//					}
				//				} catch ( NoSuchAlgorithmException | KeyStoreException | CertificateException | IOException e ) {
				//					log.debug( "FtpDownloadWorker: Problem with Keystore ore FtpsClient creation." );
				//				}
			}
			try {
				Thread.sleep( 5 * 60 * 1000 );
			} catch ( InterruptedException e ) {
				log.error( "FtpUploadWorker: Sleep interrupted" );
				e.printStackTrace();
			}
		}

	}
}