diff src/treeVnc/VncProxyService.java @ 0:756bfaf731f3

create new repository
author Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
date Tue, 21 Feb 2012 04:10:12 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/treeVnc/VncProxyService.java	Tue Feb 21 04:10:12 2012 +0900
@@ -0,0 +1,1042 @@
+package treeVnc;
+
+import java.awt.*;
+import java.awt.event.*;
+import java.io.*;
+import java.net.*;
+
+public class VncProxyService implements java.lang.Runnable {
+	
+
+	public void treeVncProxy(String[] argv) {
+		VncProxyService v = new VncProxyService();
+
+		// v.checkArgs(argv);
+
+		v.mainArgs = argv;
+
+		v.init();
+		v.start_threads();
+	}
+
+	String[] mainArgs;
+	String username;
+
+	//CreateHtmlFile hgtmlFile;
+
+	// RfbProto rfb;
+	MyRfbProtoProxy rfb;
+	MyRfbProtoProxy testrfb;
+	Thread rfbThread;
+	Thread accThread;
+	Thread clientThread;
+	private Thread bCast;
+	CreateThread geth;
+	AcceptClient acc;
+	private AcceptThread acceptThread;
+	private TextBoxProxy getHost;
+	private GetBroadCastProxy getCast;
+
+	Frame vncFrame;
+	Container vncContainer;
+	ScrollPane desktopScrollPane;
+	GridBagLayout gridbag;
+	ButtonPanel buttonPanel;
+	Label connStatusLabel;
+	ProxyVncCanvas vc;
+	// OptionsFrame options;
+	OptionsNoFrame options;
+	ClipboardFrame clipboard;
+	RecordingFrame rec;
+
+	// Control session recording.
+	Object recordingSync;
+	String sessionFileName;
+	boolean recordingActive;
+	boolean recordingStatusChanged;
+	String cursorUpdatesDef;
+	String eightBitColorsDef;
+
+	// Variables read from parameter values.
+	String socketFactory;
+	String host;
+	int port = 5900;
+	String passwordParam;
+	boolean showControls;
+	boolean offerRelogin;
+	boolean showOfflineDesktop;
+	int deferScreenUpdates;
+	int deferCursorUpdates;
+	int deferUpdateRequests;
+	int debugStatsExcludeUpdates;
+	int debugStatsMeasureUpdates;
+
+	int echoPort = 9999;
+	private boolean changeFlag;
+
+	String url;
+
+	// XmlRpc client;
+	String wpUsername, wpPassword, blogId;
+	String title = "TreeVNC";
+
+	void checkArgs(String[] argv) {
+		int len = argv.length;
+
+		for (int i = 0; i < len; i++) {
+			String str = argv[i];
+			if (str.equals("-h") || str.equals("--host")) {
+				host = argv[++i];
+			} else if (str.equals("-pn") || str.equals("--port")) {
+				port = Integer.parseInt(argv[++i]);
+			} else if (str.equals("-pw") || str.equals("--password")) {
+				passwordParam = argv[++i];
+			} else if (str.equals("-w") || str.equals("--wpurl")) {
+				url = argv[++i];
+			} else if (str.equals("-wu") || str.equals("--wpusername")) {
+				wpUsername = argv[++i];
+			} else if (str.equals("-wp") || str.equals("--wppassword")) {
+				wpPassword = argv[++i];
+			} else if (str.equals("-wb") || str.equals("--wpblogId")) {
+				blogId = argv[++i];
+			} else if (str.equals("--help")) {
+				printHelp();
+				System.exit(0);
+			} else if (len == 3) {
+				host = argv[0];
+				port = Integer.parseInt(argv[1]);
+				passwordParam = argv[2];
+			} else if (len == 2) {
+				host = argv[0];
+				port = Integer.parseInt(argv[1]);
+			} else if (len == 1) {
+				host = argv[0];
+			}
+		}
+	}
+
+	void printHelp() {
+		System.out
+				.println("usage: java -jar VncProxyService [-h hostname] "
+						+ "[-pn portnumber] [-pw password] [-w WordPressURL] [-wu WPUsername] "
+						+ "[-wp WPPassword] [-wb blogId]");
+	}
+
+	//
+	// init()
+	//
+
+	public void init() {
+		
+		readParameters();
+
+		options = new OptionsNoFrame(this);
+		recordingSync = new Object();
+
+		sessionFileName = null;
+		recordingActive = false;
+		recordingStatusChanged = false;
+		cursorUpdatesDef = null;
+		eightBitColorsDef = null;
+
+		try {
+			connectAndAuthenticate();
+			doProtocolInitialisation();
+		} catch (NoRouteToHostException e) {
+			fatalError("Network error: no route to server: " + host, e);
+		} catch (UnknownHostException e) {
+			fatalError("Network error: server name unknown: " + host, e);
+		} catch (ConnectException e) {
+			fatalError("Network error: could not connect to server: " + host
+					+ ":" + port, e);
+		} catch (IOException e) {
+			fatalError("Network error: faild connect or authenticate to server");
+		} catch (Exception e) {
+			
+		}
+/*		
+		if(changeFlag){
+			acceptThread.changeRfb(rfb);
+		} else {*/
+			rfb.selectPort(5999);
+			rfbThread = new Thread(this);
+			acceptThread = new AcceptThread(rfb, 5999);
+			accThread = new Thread(acceptThread);
+			getCast = new GetBroadCastProxy(this);
+			bCast = new Thread(getCast);
+			//broadCast.udpTransmission(rfb.acceptPort+"-"+host+"-"+rfb.desktopName);
+		//}
+		/*
+		 * if(url != null) { try { client = new XmlRpc(blogId, wpUsername,
+		 * wpPassword, url ); InetAddress addr = InetAddress.getLocalHost();
+		 * String add = new String(addr.getHostAddress());
+		 * client.addDescription(rfb.desktopName); setStatusXmlRpc(client,
+		 * title, add, rfb.acceptPort); client.editPost();
+		 * System.out.println("URL:\n" + client.getUrl() + "\n"); } catch
+		 * (MalformedURLException e) {
+		 * System.out.println("Faild create instance of class XmlRpc");
+		 * e.printStackTrace(); } catch (UnknownHostException e) {
+		 * e.printStackTrace(); } }
+		 */
+
+	}
+	
+	
+	public void changeInit() throws Exception {
+		VncProxyService v = new VncProxyService();
+		v.changeFlag = true;
+		//v.checkArgs(argv);
+
+		v.mainArgs = new String[0];
+		v.host = host;
+		v.init();
+		v.start_threads();
+		
+		Thread.sleep(10000);
+		//rfb = v.rfb;
+		rfb.is = v.rfb.is;
+		rfb.os = v.rfb.os;
+		rfb.initData = v.rfb.initData;
+	
+		//changeConnection();
+//		doProtocolInitialisation();
+	
+		//readParameters();
+		options = new OptionsNoFrame(this);
+		recordingSync = new Object();
+
+		sessionFileName = null;
+		recordingActive = false;
+		recordingStatusChanged = false;
+		cursorUpdatesDef = null;
+		eightBitColorsDef = null;
+
+		try {
+			changeConnection();
+			doProtocolInitialisation();
+		} catch (NoRouteToHostException e) {
+			fatalError("Network error: no route to server: " + host, e);
+		} catch (UnknownHostException e) {
+			fatalError("Network error: server name unknown: " + host, e);
+		} catch (ConnectException e) {
+			fatalError("Network error: could not connect to server: " + host
+					+ ":" + port, e);
+		} catch (IOException e) {
+			fatalError("Network error: faild connect or authenticate to server");
+		} catch (Exception e) {
+			
+		}
+		
+		//acceptThread.changeRfb(rfb);
+		//vc.rfb = rfb;
+		//rfbThread.start();
+
+	}
+
+	/*
+	 * void setStatusXmlRpc(XmlRpc client, String title, String hostname, int
+	 * port) { client.setTitle(title); String description =
+	 * makeDescription(hostname, Integer.toString(port));
+	 * client.addDescription(description); }
+	 */
+	String makeDescription(String hostname, String port) {
+		String description = "<h1>" + hostname + " " + port + "<h1>\n";
+		return description;
+	}
+	
+	public void start_threads() {
+		rfbThread.start();
+		accThread.start();
+		bCast.start();
+		rfb.requestThreadStart();
+	}
+
+	//
+	// run() - executed by the rfbThread to deal with the RFB socket.
+	//
+	public void run() {
+
+		try {
+			// connectAndAuthenticate();
+			// doProtocolInitialisation();
+			/*
+			 * htmlFile = new CreateHtmlFile(rfb, host, username);
+			 * htmlFile.createHtml();
+			 */
+			vc = new ProxyVncCanvas(this, 0, 0);
+			vc.updateFramebufferSize();
+
+			processNormalProtocol();// main loop
+
+		} catch (NoRouteToHostException e) {
+			fatalError("Network error: no route to server: " + host, e);
+		} catch (UnknownHostException e) {
+			fatalError("Network error: server name unknown: " + host, e);
+		} catch (ConnectException e) {
+			fatalError("Network error: could not connect to server: " + host
+					+ ":" + port, e);
+		} catch (EOFException e) {
+			if (showOfflineDesktop) {
+				e.printStackTrace();
+				System.out
+						.println("Network error: remote side closed connection");
+				if (vc != null) {
+					vc.enableInput(false);
+				}
+				if (rfb != null && !rfb.closed())
+					rfb.close();
+				if (showControls && buttonPanel != null) {
+					buttonPanel.disableButtonsOnDisconnect();
+				}
+			} else {
+				fatalError("Network error: remote side closed connection", e);
+			}
+		} catch (IOException e) {
+			String str = e.getMessage();
+			if (str != null && str.length() != 0) {
+				fatalError("Network Error: " + str, e);
+			} else {
+				fatalError(e.toString(), e);
+			}
+		} catch (Exception e) {
+			String str = e.getMessage();
+			if (str != null && str.length() != 0) {
+				fatalError("Error: " + str, e);
+			} else {
+				fatalError(e.toString(), e);
+			}
+		}
+
+	}
+
+	//
+	// Process RFB socket messages.
+	// If the rfbThread is being stopped, ignore any exceptions,
+	// otherwise rethrow the exception so it can be handled.
+	//
+
+	void processNormalProtocol() throws Exception {
+		try {
+			vc.processNormalProtocol();// main loop
+		} catch (Exception e) {
+			if (rfbThread == null) {
+				System.out.println("Ignoring RFB socket exceptions"
+						+ " because applet is stopping");
+			} else {
+				throw e;
+			}
+		}
+	}
+
+	//
+	// Connect to the RFB server and authenticate the user.
+	//
+
+	void connectAndAuthenticate() throws Exception {
+		if (mainArgs.length == 0)
+			acc = new AcceptClient(host);
+			//acc = new AcceptClient(getHost.getAddress());
+		// acc = new AcceptClient();
+		else
+			acc = new AcceptClient(mainArgs[0]);
+		geth = new CreateThread(echoPort,acc);
+		Thread thread = new Thread(geth);
+		thread.start();
+
+		showConnectionStatus("Initializing...");
+
+		showConnectionStatus("Connecting to " + host + ", port " + port + "...");
+
+		rfb = new MyRfbProtoProxy(host, port, geth);
+
+		showConnectionStatus("Connected to server");
+
+		rfb.readVersionMsg();
+		showConnectionStatus("RFB server supports protocol version "
+				+ rfb.serverMajor + "." + rfb.serverMinor);
+
+		rfb.writeVersionMsg();
+		showConnectionStatus("Using RFB protocol version " + rfb.clientMajor
+				+ "." + rfb.clientMinor);
+
+		int secType = rfb.negotiateSecurity();
+		int authType;
+		if (secType == RfbProto.SecTypeTight) {
+			showConnectionStatus("Enabling TightVNC protocol extensions");
+			rfb.setupTunneling();
+			authType = rfb.negotiateAuthenticationTight();
+		} else {
+			authType = secType;
+		}
+
+		switch (authType) {
+		case MyRfbProtoProxy.AuthAccess:
+			rfb.authenticationRequestAccess();
+			System.out.println("authenticateion Request right of Acces");
+			break;
+		case RfbProto.AuthNone:
+			showConnectionStatus("No authentication needed");
+			rfb.authenticateNone();
+			break;
+		case RfbProto.AuthVNC:
+			showConnectionStatus("Performing standard VNC authentication");
+			if (passwordParam != null) {
+				rfb.authenticateVNC(passwordParam);
+			} else {
+				String pw = askPassword();
+				rfb.authenticateVNC(pw);
+			}
+			break;
+		default:
+			throw new Exception("Unknown authentication scheme " + authType);
+		}
+	}
+	
+	void changeConnection() throws Exception {
+		/*
+		acc = new AcceptClient(getHost.getAddress());
+		geth = new CreateThread(acc, echoPort);
+		Thread thread = new Thread(geth);
+		thread.start();
+		*/
+		showConnectionStatus("Initializing...");
+
+		showConnectionStatus("Connecting to " + host + ", port " + port + "...");
+		
+		//rfb = null;
+		//rfb.is = null;
+
+		testrfb = new MyRfbProtoProxy(host, port);
+		showConnectionStatus("Connected to server");
+
+		testrfb.readVersionMsg();
+		showConnectionStatus("RFB server supports protocol version "
+				+ testrfb.serverMajor + "." + testrfb.serverMinor);
+
+		testrfb.writeVersionMsg();
+		showConnectionStatus("Using RFB protocol version " + testrfb.clientMajor
+				+ "." + testrfb.clientMinor);
+
+		int secType = testrfb.negotiateSecurity();
+		int authType;
+		if (secType == RfbProto.SecTypeTight) {
+			showConnectionStatus("Enabling TightVNC protocol extensions");
+			testrfb.setupTunneling();
+			authType = testrfb.negotiateAuthenticationTight();
+		} else {
+			authType = secType;
+		}
+
+		switch (authType) {
+		case MyRfbProtoProxy.AuthAccess:
+			testrfb.authenticationRequestAccess();
+			System.out.println("authenticateion Request right of Acces");
+			break;
+		case RfbProto.AuthNone:
+			showConnectionStatus("No authentication needed");
+			testrfb.authenticateNone();
+			break;
+		case RfbProto.AuthVNC:
+			showConnectionStatus("Performing standard VNC authentication");
+			if (passwordParam != null) {
+				testrfb.authenticateVNC(passwordParam);
+			} else {
+				String pw = askPassword();
+				testrfb.authenticateVNC(pw);
+			}
+			break;
+		default:
+			throw new Exception("Unknown authentication scheme " + authType);
+		}
+		//rfb.is = testrfb.is;
+		//rfb.os = testrfb.os;
+		//rfb = testrfb;
+	}
+
+	//
+	// Show a message describing the connection status.
+	// To hide the connection status label, use (msg == null).
+	//
+
+	void showConnectionStatus(String msg) {
+		System.out.println(msg);
+	}
+
+	//
+	// Show an authentication panel.
+	//
+
+	String askPassword() throws Exception {
+		/*
+		 * showConnectionStatus(null); AuthPanel authPanel = new
+		 * AuthPanel(this);
+		 * 
+		 * GridBagConstraints gbc = new GridBagConstraints(); gbc.gridwidth =
+		 * GridBagConstraints.REMAINDER; gbc.anchor =
+		 * GridBagConstraints.NORTHWEST; gbc.weightx = 1.0; gbc.weighty = 1.0;
+		 * gbc.ipadx = 100; gbc.ipady = 50; gridbag.setConstraints(authPanel,
+		 * gbc); vncContainer.add(authPanel);
+		 * 
+		 * 
+		 * authPanel.moveFocusToDefaultField(); vncContainer.remove(authPanel);
+		 */
+		
+		showConnectionStatus("ask password...");
+		String pw;
+		if (mainArgs.length != 0)
+			pw = mainArgs[2];
+		else
+			pw = getHost.getPassword();
+		return pw;
+	}
+
+	//
+	// Do the rest of the protocol initialisation.
+	//
+
+	void doProtocolInitialisation() throws IOException {
+		rfb.writeClientInit();
+		rfb.readServerInit();
+
+		System.out.println("Desktop name is " + rfb.desktopName);
+		System.out.println("Desktop size is " + rfb.framebufferWidth + " x "
+				+ rfb.framebufferHeight);
+
+		setEncodings();
+
+		// showConnectionStatus(null);
+	}
+
+	//
+	// Send current encoding list to the RFB server.
+	//
+
+	int[] encodingsSaved;
+	int nEncodingsSaved;
+
+	void setEncodings() {
+		setEncodings(false);
+	}
+
+	void autoSelectEncodings() {
+		setEncodings(true);
+	}
+
+	void setEncodings(boolean autoSelectOnly) {
+		if (options == null || rfb == null || !rfb.inNormalProtocol)
+			return;
+
+		int preferredEncoding = options.preferredEncoding;
+		if (preferredEncoding == -1) {
+		//	long kbitsPerSecond = rfb.kbitsPerSecond();
+			/*
+			 * if (nEncodingsSaved < 1) { // Choose Tight or ZRLE encoding for
+			 * the very first update.
+			 * System.out.println("Using Tight/ZRLE encodings");
+			 * preferredEncoding = RfbProto.EncodingTight; } else if
+			 * (kbitsPerSecond > 2000 && encodingsSaved[0] !=
+			 * RfbProto.EncodingHextile) { // Switch to Hextile if the
+			 * connection speed is above 2Mbps. System.out.println("Throughput "
+			 * + kbitsPerSecond + " kbit/s - changing to Hextile encoding");
+			 * preferredEncoding = RfbProto.EncodingHextile; } else if
+			 * (kbitsPerSecond < 1000 && encodingsSaved[0] !=
+			 * RfbProto.EncodingTight) { // Switch to Tight/ZRLE if the
+			 * connection speed is below 1Mbps. System.out.println("Throughput "
+			 * + kbitsPerSecond + " kbit/s - changing to Tight/ZRLE encodings");
+			 * preferredEncoding = RfbProto.EncodingTight; } else { // Don't
+			 * change the encoder. if (autoSelectOnly) return; preferredEncoding
+			 * = encodingsSaved[0]; }
+			 */
+		} else {
+			// Auto encoder selection is not enabled.
+			if (autoSelectOnly)
+				return;
+		}
+
+		int[] encodings = new int[20];
+		int nEncodings = 0;
+
+		encodings[nEncodings++] = preferredEncoding;
+
+		if (options.useCopyRect) {
+			encodings[nEncodings++] = RfbProto.EncodingCopyRect;
+		}
+		/*
+		 * if (preferredEncoding != RfbProto.EncodingTight) {
+		 * encodings[nEncodings++] = RfbProto.EncodingTight; }
+		 */
+
+		if (preferredEncoding != RfbProto.EncodingZRLE) {
+			encodings[nEncodings++] = RfbProto.EncodingZRLE;
+		}
+		/*
+		 * if (preferredEncoding != RfbProto.EncodingHextile) {
+		 * encodings[nEncodings++] = RfbProto.EncodingHextile; } if
+		 * (preferredEncoding != RfbProto.EncodingZlib) {
+		 * encodings[nEncodings++] = RfbProto.EncodingZlib; }
+		 */
+		/*
+		 * if (preferredEncoding != RfbProto.EncodingCoRRE) {
+		 * encodings[nEncodings++] = RfbProto.EncodingCoRRE; } if
+		 * (preferredEncoding != RfbProto.EncodingRRE) { encodings[nEncodings++]
+		 * = RfbProto.EncodingRRE; }
+		 */
+		/*
+		 * if (options.compressLevel >= 0 && options.compressLevel <= 9) {
+		 * encodings[nEncodings++] = RfbProto.EncodingCompressLevel0 +
+		 * options.compressLevel; } if (options.jpegQuality >= 0 &&
+		 * options.jpegQuality <= 9) { encodings[nEncodings++] =
+		 * RfbProto.EncodingQualityLevel0 + options.jpegQuality; } if
+		 * (options.requestCursorUpdates) { encodings[nEncodings++] =
+		 * RfbProto.EncodingXCursor; encodings[nEncodings++] =
+		 * RfbProto.EncodingRichCursor; if (!options.ignoreCursorUpdates)
+		 * encodings[nEncodings++] = RfbProto.EncodingPointerPos; }
+		 */
+
+		encodings[nEncodings++] = RfbProto.EncodingLastRect;
+		encodings[nEncodings++] = RfbProto.EncodingNewFBSize;
+
+		boolean encodingsWereChanged = false;
+		if (nEncodings != nEncodingsSaved) {
+			encodingsWereChanged = true;
+		} else {
+			for (int i = 0; i < nEncodings; i++) {
+				if (encodings[i] != encodingsSaved[i]) {
+					encodingsWereChanged = true;
+					break;
+				}
+			}
+		}
+
+		if (encodingsWereChanged) {
+			try {
+				rfb.writeSetEncodings(encodings, nEncodings);
+				if (vc != null) {
+					vc.softCursorFree();
+				}
+			} catch (Exception e) {
+				e.printStackTrace();
+			}
+			encodingsSaved = encodings;
+			nEncodingsSaved = nEncodings;
+		}
+	}
+
+	//
+	// setCutText() - send the given cut text to the RFB server.
+	//
+
+	void setCutText(String text) {
+		try {
+			if (rfb != null && rfb.inNormalProtocol) {
+				rfb.writeClientCutText(text);
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+	}
+
+	//
+	// Order change in session recording status. To stop recording, pass
+	// null in place of the fname argument.
+	//
+
+	void setRecordingStatus(String fname) {
+		synchronized (recordingSync) {
+			sessionFileName = fname;
+			recordingStatusChanged = true;
+		}
+	}
+
+	//
+	// Start or stop session recording. Returns true if this method call
+	// causes recording of a new session.
+	//
+
+	boolean checkRecordingStatus() throws IOException {
+		synchronized (recordingSync) {
+			if (recordingStatusChanged) {
+				recordingStatusChanged = false;
+				if (sessionFileName != null) {
+					startRecording();
+					return true;
+				} else {
+					stopRecording();
+				}
+			}
+		}
+		return false;
+	}
+
+	//
+	// Start session recording.
+	//
+
+	protected void startRecording() throws IOException {
+		synchronized (recordingSync) {
+			if (!recordingActive) {
+				// Save settings to restore them after recording the session.
+				cursorUpdatesDef = options.choices[options.cursorUpdatesIndex]
+						.getSelectedItem();
+				eightBitColorsDef = options.choices[options.eightBitColorsIndex]
+						.getSelectedItem();
+				// Set options to values suitable for recording.
+				options.choices[options.cursorUpdatesIndex].select("Disable");
+				options.choices[options.cursorUpdatesIndex].setEnabled(false);
+				options.setEncodings();
+				options.choices[options.eightBitColorsIndex].select("No");
+				options.choices[options.eightBitColorsIndex].setEnabled(false);
+				options.setColorFormat();
+			} else {
+				rfb.closeSession();
+			}
+
+			System.out.println("Recording the session in " + sessionFileName);
+			rfb.startSession(sessionFileName);
+			recordingActive = true;
+		}
+	}
+
+	//
+	// Stop session recording.
+	//
+
+	protected void stopRecording() throws IOException {
+		synchronized (recordingSync) {
+			if (recordingActive) {
+				// Restore options.
+				options.choices[options.cursorUpdatesIndex]
+						.select(cursorUpdatesDef);
+				options.choices[options.cursorUpdatesIndex].setEnabled(true);
+				options.setEncodings();
+				options.choices[options.eightBitColorsIndex]
+						.select(eightBitColorsDef);
+				options.choices[options.eightBitColorsIndex].setEnabled(true);
+				options.setColorFormat();
+
+				rfb.closeSession();
+				System.out.println("Session recording stopped.");
+			}
+			sessionFileName = null;
+			recordingActive = false;
+		}
+	}
+
+	//
+	// readParameters() - read parameters from the html source or from the
+	// command line. On the command line, the arguments are just a sequence of
+	// param_name/param_value pairs where the names and values correspond to
+	// those expected in the html applet tag source.
+	//
+	
+	void readParameters() {
+		if (!(changeFlag)) {
+			if ("-p".equals(mainArgs[0])) {
+				//getHost = new TextBoxProxy(this);
+				//getHost.ipRegister();
+				//host = getHost.getAddress();
+				host = "localhost";		
+			} else {
+				host = mainArgs[0];
+			}
+
+			if ("-p".equals(mainArgs[0])) {
+				///port = Integer.parseInt(getHost.getPort());
+				 port = 5900;
+			} else {
+				port = Integer.parseInt(mainArgs[1]);
+			}
+		} else {
+			getHost = new TextBoxProxy(this);
+			port = 5900;
+		}
+		/*
+		if(getHost==null){
+//			getHost = new TextBoxProxy(this);
+			//getHost.changeHost();
+		} else {	
+			//getHost.changeHost();
+		} 
+		*/
+
+		// Read "ENCPASSWORD" or "PASSWORD" parameter if specified.
+		// readPasswordParameters();
+
+		String str;
+
+		// "Show Controls" set to "No" disables button panel.
+		showControls = true;
+		str = readParameter("Show Controls", false);
+		if (str != null && str.equalsIgnoreCase("No"))
+			showControls = false;
+
+		// "Offer Relogin" set to "No" disables "Login again" and "Close
+		// window" buttons under error messages in applet mode.
+		offerRelogin = true;
+		str = readParameter("Offer Relogin", false);
+		if (str != null && str.equalsIgnoreCase("No"))
+			offerRelogin = false;
+
+		// Do we continue showing desktop on remote disconnect?
+		showOfflineDesktop = false;
+		str = readParameter("Show Offline Desktop", false);
+		if (str != null && str.equalsIgnoreCase("Yes"))
+			showOfflineDesktop = true;
+
+		// Fine tuning options.
+		deferScreenUpdates = readIntParameter("Defer screen updates", 20);
+		deferCursorUpdates = readIntParameter("Defer cursor updates", 10);
+		deferUpdateRequests = readIntParameter("Defer update requests", 0);
+
+		// Debugging options.
+		debugStatsExcludeUpdates = readIntParameter("DEBUG_XU", 0);
+		debugStatsMeasureUpdates = readIntParameter("DEBUG_CU", 0);
+
+		// SocketFactory.
+		socketFactory = readParameter("SocketFactory", false);
+	}
+
+	//
+	// Read password parameters. If an "ENCPASSWORD" parameter is set,
+	// then decrypt the password into the passwordParam string. Otherwise,
+	// try to read the "PASSWORD" parameter directly to passwordParam.
+	//
+/*
+	private void readPasswordParameters() {
+		String encPasswordParam;
+		// String encPasswordParam = readParameter("ENCPASSWORD", false);
+		if (mainArgs.length != 0)
+			encPasswordParam = mainArgs[2];
+		else
+			encPasswordParam = getHost.getPassword();
+
+		if (encPasswordParam == null) {
+			// passwordParam = readParameter("PASSWORD", false);
+
+		} else {
+			// ENCPASSWORD is hexascii-encoded. Decode.
+			byte[] pw = { 0, 0, 0, 0, 0, 0, 0, 0 };
+			int len = encPasswordParam.length() / 2;
+			if (len > 8)
+				len = 8;
+			for (int i = 0; i < len; i++) {
+				String hex = encPasswordParam.substring(i * 2, i * 2 + 2);
+				Integer x = new Integer(Integer.parseInt(hex, 16));
+				pw[i] = x.byteValue();
+			}
+			// Decrypt the password.
+			byte[] key = { 23, 82, 107, 6, 35, 78, 88, 7 };
+			DesCipher des = new DesCipher(key);
+			des.decrypt(pw, 0, pw, 0);
+			passwordParam = new String(pw);
+
+		}
+	}
+*/
+	public String readParameter(String name, boolean required) {
+		if(mainArgs!=null){
+			for (int i = 0; i < mainArgs.length; i += 2) {
+				if (mainArgs[i].equalsIgnoreCase(name)) {
+					try {
+						return mainArgs[i + 1];
+					} catch (Exception e) {
+						if (required) {
+							fatalError(name + " parameter not specified");
+						}
+						return null;
+					}
+				}
+			}
+			if (required) {
+				fatalError(name + " parameter not specified");
+			}
+		}
+		return null;
+	}
+
+	int readIntParameter(String name, int defaultValue) {
+		String str = readParameter(name, false);
+		int result = defaultValue;
+		if (str != null) {
+			try {
+				result = Integer.parseInt(str);
+			} catch (NumberFormatException e) {
+			}
+		}
+		return result;
+	}
+
+	//
+	// disconnect() - close connection to server.
+	//
+
+	synchronized public void disconnect() {
+		System.out.println("Disconnecting");
+
+		if (vc != null) {
+			double sec = (System.currentTimeMillis() - vc.statStartTime) / 1000.0;
+			double rate = Math.round(vc.statNumUpdates / sec * 100) / 100.0;
+			int nRealRects = vc.statNumPixelRects;
+			int nPseudoRects = vc.statNumTotalRects - vc.statNumPixelRects;
+			System.out.println("Updates received: " + vc.statNumUpdates + " ("
+					+ nRealRects + " rectangles + " + nPseudoRects
+					+ " pseudo), " + rate + " updates/sec");
+			int numRectsOther = nRealRects - vc.statNumRectsTight
+					- vc.statNumRectsZRLE - vc.statNumRectsHextile
+					- vc.statNumRectsRaw - vc.statNumRectsCopy;
+			System.out.println("Rectangles:" + " Tight=" + vc.statNumRectsTight
+					+ "(JPEG=" + vc.statNumRectsTightJPEG + ") ZRLE="
+					+ vc.statNumRectsZRLE + " Hextile="
+					+ vc.statNumRectsHextile + " Raw=" + vc.statNumRectsRaw
+					+ " CopyRect=" + vc.statNumRectsCopy + " other="
+					+ numRectsOther);
+
+			int raw = vc.statNumBytesDecoded;
+			int compressed = vc.statNumBytesEncoded;
+			if (compressed > 0) {
+				double ratio = Math.round((double) raw / compressed * 1000) / 1000.0;
+				System.out.println("Pixel data: " + vc.statNumBytesDecoded
+						+ " bytes, " + vc.statNumBytesEncoded
+						+ " compressed, ratio " + ratio);
+			}
+		}
+
+		if (rfb != null && !rfb.closed())
+			rfb.close();
+		// options.dispose();
+		clipboard.dispose();
+		if (rec != null)
+			rec.dispose();
+
+		System.exit(0);
+
+	}
+
+	//
+	// fatalError() - print out a fatal error message.
+	// FIXME: Do we really need two versions of the fatalError() method?
+	//
+
+	synchronized public void fatalError(String str) {
+		System.out.println(str);
+		System.exit(1);
+	}
+
+	synchronized public void fatalError(String str, Exception e) {
+
+		if (rfb != null && rfb.closed()) {
+			// Not necessary to show error message if the error was caused
+			// by I/O problems after the rfb.close() method call.
+			System.out.println("RFB thread finished");
+			return;
+		}
+
+		System.out.println(str);
+		e.printStackTrace();
+
+		if (rfb != null)
+			rfb.close();
+
+		System.exit(1);
+
+	}
+
+	//
+	// Show message text and optionally "Relogin" and "Close" buttons.
+	//
+
+	void showMessage(String msg) {
+		vncContainer.removeAll();
+
+		Label errLabel = new Label(msg, Label.CENTER);
+		errLabel.setFont(new Font("Helvetica", Font.PLAIN, 12));
+
+		if (offerRelogin) {
+			/*
+			 * Panel gridPanel = new Panel(new GridLayout(0, 1)); Panel
+			 * outerPanel = new Panel(new FlowLayout(FlowLayout.LEFT));
+			 * outerPanel.add(gridPanel); vncContainer.setLayout(new
+			 * FlowLayout(FlowLayout.LEFT, 30, 16));
+			 * vncContainer.add(outerPanel); Panel textPanel = new Panel(new
+			 * FlowLayout(FlowLayout.CENTER)); textPanel.add(errLabel);
+			 * gridPanel.add(textPanel); gridPanel.add(new ReloginPanel(this));
+			 */
+		} else {
+			/*
+			 * vncContainer.setLayout(new FlowLayout(FlowLayout.LEFT, 30, 30));
+			 * vncContainer.add(errLabel);
+			 */
+		}
+
+	}
+
+	//
+	// Stop the applet.
+	// Main applet thread will terminate on first exception
+	// after seeing that rfbThread has been set to null.
+	//
+
+	public void stop() {
+		System.out.println("Stopping applet");
+		rfbThread = null;
+	}
+
+	//
+	// This method is called before the applet is destroyed.
+	//
+
+	public void destroy() {
+		System.out.println("Destroying applet");
+
+		vncContainer.removeAll();
+		// options.dispose();
+		clipboard.dispose();
+		if (rec != null)
+			rec.dispose();
+		if (rfb != null && !rfb.closed())
+			rfb.close();
+	}
+
+	//
+	// Start/stop receiving mouse events.
+	//
+
+	public void enableInput(boolean enable) {
+		vc.enableInput(enable);
+	}
+
+	//
+	// Close application properly on window close event.
+	//
+
+	public void windowClosing(WindowEvent evt) {
+		System.out.println("Closing window");
+		if (rfb != null)
+			disconnect();
+
+		vncContainer.setVisible(false);
+
+	}
+
+	//
+	// Ignore window events we're not interested in.
+	//
+
+	public void windowActivated(WindowEvent evt) {
+	}
+
+	public void windowDeactivated(WindowEvent evt) {
+	}
+
+	public void windowOpened(WindowEvent evt) {
+	}
+
+	public void windowClosed(WindowEvent evt) {
+	}
+
+	public void windowIconified(WindowEvent evt) {
+	}
+
+	public void windowDeiconified(WindowEvent evt) {
+	}
+}