Package org.gudy.azureus2.core3.util.protocol.magnet

Source Code of org.gudy.azureus2.core3.util.protocol.magnet.MagnetConnection2

/*
* Created on 06-Mar-2005
* 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 org.gudy.azureus2.core3.util.protocol.magnet;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.*;


import org.gudy.azureus2.core3.util.Debug;

import com.aelitis.net.magneturi.MagnetURIHandler;

/**
* @author parg
*
*/

public class
MagnetConnection2
  extends HttpURLConnection
{
  private static final String  NL      = "\r\n";
 
  private OutputStream   output_stream;
  private InputStream   input_stream;
 
  private LinkedList<String>  status_list = new LinkedList<String>();
 
  protected
  MagnetConnection2(
    URL    _url )
  {
    super( _url );
  }
 
  public void
  connect()
    throws IOException
   
  {       
    String  get = "/download/" + getURL().toString().substring( 7 ) + " HTTP/1.0" + NL + NL;
   
    PipedOutputStream   pos = new PipedOutputStream();
    PipedInputStream   pis = new PipedInputStream();
   
    pis.connect( pos );
   
    input_stream  = pis;
    output_stream   = pos;
   
    MagnetURIHandler.getSingleton().process( get, new ByteArrayInputStream(new byte[0]), pos );
  }
 
  public InputStream
  getInputStream()
 
    throws IOException
  {   
    String  line = "";
   
    byte[]  buffer = new byte[1];

    byte[]  line_bytes    = new byte[2048];
    int    line_bytes_pos   = 0;
   
    while(true){
   
      int  len = input_stream.read( buffer );
     
      if ( len == -1 ){
       
        break;
      }
     
      line += (char)buffer[0];
     
      line_bytes[line_bytes_pos++] = buffer[0];
     
      if ( line.endsWith( NL )){
       
        line = line.trim();
       
        if ( line.length() == 0 ){
         
          break;
        }
       
        if ( line.startsWith( "X-Report:")){
         
          line = new String( line_bytes, 0, line_bytes_pos, "UTF-8" );
         
          line = line.substring( 9 );
                   
          line = line.trim();
                   
          synchronized( status_list ){
   
            String str = Character.toUpperCase( line.charAt(0)) + line.substring(1);
           
            if ( status_list.size() == 0 ){
             
              status_list.addLast( str );
             
            }else if ( !status_list.getLast().equals( str )){
             
              status_list.addLast( str );
            }
          }
        }
       
        line      = "";
        line_bytes_pos  = 0;
      }
    }
   
    return( input_stream );
  }
 
  public int
  getResponseCode()
  {
    return( HTTP_OK );
  }
 
  public String
  getResponseMessage()
  {
    synchronized( status_list ){

      if ( status_list.size() == 0 ){
       
        return( "" );
       
      }else if ( status_list.size() == 1 ){
       
        return( status_list.get( 0 ));
       
      }else{
       
        return( status_list.removeFirst());
      }
    }
  }
 
  public boolean
  usingProxy()
  {
    return( false );
  }
 
  public void
  disconnect()
  {
    try{
      output_stream.close();
     
    }catch( Throwable e ){
     
      Debug.printStackTrace(e);
    }
   
    try{
      input_stream.close();
     
    }catch( Throwable e ){
     
      Debug.printStackTrace(e);
    }
  }
}
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