httpplayer.java

java语言开发的P2P流媒体系统

/* Stream-2-Stream - Peer to peer television and radio
 * October 13, 2005 - This file has been modified from the original P2P-Radio source
 * Project homepage: http://s2s.sourceforge.net/
 * Copyright (C) 2005-2006 Jason Hooks
 */

/* 
 * P2P-Radio - Peer to peer streaming system
 * Project homepage: http://p2p-radio.sourceforge.net/
 * Copyright (C) 2003-2004 Michael Kaufmann <[e-mail]>
 * 
 * ---------------------------------------------------------------------------
 * 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
 * ---------------------------------------------------------------------------
 */

package p2pradio.players;
import stream2stream.network.*;
import p2pradio.*;
import p2pradio.logging.Logger;
import java.io.*;
import java.net.*;


/**
 * Creates a server socket and waits for connections from a
 * Shoutcast-/Icecast-compatible media player.
 * <P>
 * For every new connection a HttpPlayerServer is started.
 *
 * @author Michael Kaufmann
 */

//TODO - Add each HttpPlayerServer into a queue so they can be shut down
public class HttpPlayer extends Player
{	
	
	public static final String PLAYLIST_NAME = "/playlist.pls"; //$NON-NLS-1$
	
	private Buffer buffer;
	private ServerSocket socket;
	private int port;
	private long startTime;								   //Start Time (in milliseconds)
	private long Time_Server_Has_Been_Running_At_Startup;  //The time the server has been running when we start P2PRadio (in milliseconds)
															//Will always be 0 if we are the server
	private boolean shutdown;
	private Peer peer;
	/**
	 * Creates a Shoutcast Player.
	 * 
	 * @param peer The peer which will give us info about the stream
	 */	
	public HttpPlayer(Peer peer)
	{
		this(peer.getBuffer(), peer.getSocketAddress().getPort() + Peer.PLAYER_PORT_OFFSET);
		startTime = peer.getStartTime();
		Time_Server_Has_Been_Running_At_Startup = peer.Get_Time_Server_Has_Been_Running_At_Startup();
		shutdown = false;
		this.peer = peer;
	}
	/**
	 * Creates a Shoutcast Player.
	 * 
	 * @param buffer The buffer that this player will use
	 * @param port The port number for the server socket
	 */	
	public HttpPlayer(Buffer buffer, int port)
	{
		super(null, Messages.getString("HttpPlayer.THREAD_NAME")); //$NON-NLS-1$
		this.buffer = buffer;
		this.port = port;
	}
	
	/**
	 * Returns the MIME type that this player can handle: <code>audio/mpeg</code>. 
	 */
	public String getMIMEType()
	{
		return "*/*"; //$NON-NLS-1$
	}
	
	public void run()
	{
		Logger.finer("HttpPlayer", "HttpPlayer.THREAD_RUNNING_PORT_NUMBER", new Integer(port)); //$NON-NLS-1$ //$NON-NLS-2$
		
		try
		{
			try
			{
				if (peer.getXML().Get_Allow_Connections_From_Remote_Hosts())
				{
					socket = new ServerSocket(port);
				}
				else
				{
					socket = new ServerSocket(port, 0, InetAddress.getByName("127.0.0.1")); //$NON-NLS-1$
				} 
			}
			catch (IOException e)
			{
				Logger.fine("HttpPlayer", Messages.getString("COULD_NOT_CREATE_TCP_SERVERSOCKET"), e); //$NON-NLS-1$ //$NON-NLS-2$
				return;
			}
			
			while (!shutdown)
			{
				Socket newsocket = null;
				
				try
				{
					newsocket = socket.accept();
				}
				catch (IOException e)
				{
					if(shutdown)
						return;
					Logger.fine("HttpPlayer", "IO_ERROR", e); //$NON-NLS-1$ //$NON-NLS-2$
					continue;
				}
				if(shutdown)
					return;
				new HttpPlayerServer(this, new ListenBuffer(buffer, peer.getUI().getMetadata()), newsocket).start();
			}
		}
		catch (Exception e)
		{
			Logger.severe("HttpPlayer", "INTERNAL_ERROR", e); //$NON-NLS-1$ //$NON-NLS-2$
		}
		finally
		{
			try {
				socket.close();
			} catch (IOException e) {
			}
		}
	}
	
	public String getHost()
	{
		return "localhost"; //$NON-NLS-1$
	}
	
	public int getPort()
	{
		return port;
	}
	
	public String getStreamURL()
	{
		// Einen Dateinamen erfinden
		// Besonders wichtig f黵 NSV (Nullsoft Video), weil sonst das Videofenster nicht erscheint
		
		String fileName = ""; //$NON-NLS-1$
		
		if (buffer.getNewestMetadataPacket() != null)
		{
			String mimeType = peer.getUI().getMetadata().getContentType();
			
			if (mimeType.equals("audio/mpeg")) //$NON-NLS-1$
			{
				fileName = "stream.mp3"; //$NON-NLS-1$
			}
			else if (mimeType.equals("video/nsv")) //$NON-NLS-1$ //$NON-NLS-2$
			{
				fileName = ";stream.nsv"; //$NON-NLS-1$
			}
			else if (mimeType.equals("application/ogg")) //$NON-NLS-1$
			{
				fileName = "stream.ogg"; //$NON-NLS-1$
			}
		}
				
		return "http://" + getHost() + ":" + getPort() + "/" + fileName;	 //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
	}
	
	public String getPlaylistURL()
	{
		return "http://" + getHost() + ":" + getPort() + PLAYLIST_NAME;	 //$NON-NLS-1$ //$NON-NLS-2$
	}
	public long getStartTime()
	{
		return startTime;
	}
	public long Get_Time_Server_Has_Been_Running_At_Startup()
	{
		return Time_Server_Has_Been_Running_At_Startup;
	}
	public void shutdown()
	{
		shutdown = true;
		if (socket != null)
		{
			try {
				socket.close();
			} catch (IOException e) {
			}
		}
	}
}