/*
* Created on 1 Nov 2006
* Created by Paul Gardner
* Copyright (C) 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 63.529,40 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/
package com.aelitis.azureus.core.networkmanager.admin.impl;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.nio.channels.SocketChannel;
import java.util.*;
import org.gudy.azureus2.core3.util.AESemaphore;
import com.aelitis.azureus.core.networkmanager.ProtocolEndpoint;
import com.aelitis.azureus.core.networkmanager.ProtocolEndpointFactory;
import com.aelitis.azureus.core.networkmanager.admin.NetworkAdminException;
import com.aelitis.azureus.core.networkmanager.admin.NetworkAdminSocksProxy;
import com.aelitis.azureus.core.networkmanager.impl.tcp.TCPConnectionManager;
import com.aelitis.azureus.core.networkmanager.impl.tcp.ProtocolEndpointTCP;
import com.aelitis.azureus.core.networkmanager.impl.tcp.ProxyLoginHandler;
import com.aelitis.azureus.core.networkmanager.impl.tcp.TCPNetworkManager;
import com.aelitis.azureus.core.networkmanager.impl.tcp.TCPTransportHelperFilterFactory;
import com.aelitis.azureus.core.networkmanager.impl.tcp.TCPTransportImpl;
import com.aelitis.azureus.core.versioncheck.VersionCheckClient;
public class
NetworkAdminSocksProxyImpl
implements NetworkAdminSocksProxy
{
private final String TARGET_HOST = VersionCheckClient.HTTP_SERVER_ADDRESS_V4;
private final int TARGET_PORT = VersionCheckClient.HTTP_SERVER_PORT;
private String host;
private String port;
private String user;
private String password;
protected
NetworkAdminSocksProxyImpl(
String _host,
String _port,
String _user,
String _password )
{
host = _host;
port = _port;
user = _user;
password = _password;
}
protected boolean
isConfigured()
{
return( host.length() > 0 );
}
public String
getName()
{
return( host + ":" + port );
}
public String
getHost()
{
return( host );
}
public String
getPort()
{
return( port );
}
public String
getUser()
{
return( user );
}
public String[]
getVersionsSupported()
throws NetworkAdminException
{
NetworkAdminException failure = null;
List versions = new ArrayList();
try{
testVersion( "V4" );
versions.add( "4" );
}catch( NetworkAdminException e ){
failure = e;
}
try{
testVersion( "V4a" );
versions.add( "4a" );
}catch( NetworkAdminException e ){
failure = e;
}
try{
testVersion( "V5" );
versions.add( "5" );
}catch( NetworkAdminException e ){
failure = e;
}
if ( versions.size() > 0 ){
return((String[])versions.toArray( new String[versions.size()]));
}
throw( failure );
}
public String
getString()
{
String res = getName();
if ( user.length() > 0 ){
res += " [auth=" + user + "]";
}
res += ", versions=";
try{
String[] versions = getVersionsSupported();
for (int j=0;j<versions.length;j++){
res += (j==0?"":",") + versions[j];
}
}catch( NetworkAdminException e ){
res += "unknown (" + e.getLocalizedMessage() + ")";
}
return( res );
}
protected void
testVersion(
final String version )
throws NetworkAdminException
{
final int RES_CONNECT_FAILED = 0;
final int RES_SOCKS_FAILED = 1;
final int RES_OK = 3;
final AESemaphore sem = new AESemaphore( "NetworkAdminSocksProxy:test" );
final int[] result = { RES_CONNECT_FAILED };
final NetworkAdminException[] error = { null };
try{
InetSocketAddress socks_address = new InetSocketAddress( InetAddress.getByName( host ), Integer.parseInt(port));
final InetSocketAddress target_address = new InetSocketAddress( TARGET_HOST, TARGET_PORT );
TCPConnectionManager.ConnectListener connect_listener =
new TCPConnectionManager.ConnectListener()
{
public int
connectAttemptStarted(
int default_connect_timeout )
{
return( default_connect_timeout );
}
public void
connectSuccess(
SocketChannel channel )
{
final TCPTransportImpl transport =
new TCPTransportImpl(
(ProtocolEndpointTCP)ProtocolEndpointFactory.createEndpoint( ProtocolEndpoint.PROTOCOL_TCP, target_address ), false, false, null );
transport.setFilter( TCPTransportHelperFilterFactory.createTransparentFilter( channel ));
new ProxyLoginHandler(
transport,
target_address,
new ProxyLoginHandler.ProxyListener()
{
public void
connectSuccess()
{
transport.close( "Done" );
result[0] = RES_OK;
sem.release();
}
public void
connectFailure(
Throwable failure_msg )
{
transport.close( "Proxy login failed" );
result[0] = RES_SOCKS_FAILED;
error[0] = new NetworkAdminException( "Proxy connect failed", failure_msg );
sem.release();
}
},
version,
user,
password );
}
public void
connectFailure(
Throwable failure_msg )
{
result[0] = RES_CONNECT_FAILED;
error[0] = new NetworkAdminException( "Connect failed", failure_msg );
sem.release();
}
};
TCPNetworkManager.getSingleton().getConnectDisconnectManager().requestNewConnection(
socks_address, connect_listener, ProtocolEndpoint.CONNECT_PRIORITY_MEDIUM );
}catch( Throwable e ){
result[0] = RES_CONNECT_FAILED;
error[0] = new NetworkAdminException( "Connect failed", e );
sem.release();
}
if ( !sem.reserve(10000)){
result[0] = RES_CONNECT_FAILED;
error[0] = new NetworkAdminException( "Connect timeout" );
}
if ( result[0] != RES_OK ){
throw( error[0] );
}
}
}