|
17
|
1 package myVncClient;
|
|
0
|
2 //
|
|
|
3 // Copyright (C) 2001-2004 HorizonLive.com, Inc. All Rights Reserved.
|
|
|
4 // Copyright (C) 2002 Constantin Kaplinsky. All Rights Reserved.
|
|
|
5 // Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
|
|
|
6 //
|
|
|
7 // This is free software; you can redistribute it and/or modify
|
|
|
8 // it under the terms of the GNU General Public License as published by
|
|
|
9 // the Free Software Foundation; either version 2 of the License, or
|
|
|
10 // (at your option) any later version.
|
|
|
11 //
|
|
|
12 // This software is distributed in the hope that it will be useful,
|
|
|
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
15 // GNU General Public License for more details.
|
|
|
16 //
|
|
|
17 // You should have received a copy of the GNU General Public License
|
|
|
18 // along with this software; if not, write to the Free Software
|
|
|
19 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
|
20 // USA.
|
|
|
21 //
|
|
|
22
|
|
|
23 //
|
|
|
24 // VncViewer.java - the VNC viewer applet. This class mainly just sets up the
|
|
|
25 // user interface, leaving it to the VncCanvas to do the actual rendering of
|
|
|
26 // a VNC desktop.
|
|
|
27 //
|
|
|
28
|
|
4
|
29 import java.awt.*;
|
|
|
30 import java.awt.event.*;
|
|
|
31 import java.io.*;
|
|
|
32 import java.net.*;
|
|
0
|
33
|
|
4
|
34 public class VncViewer extends java.applet.Applet implements
|
|
|
35 java.lang.Runnable, WindowListener {
|
|
0
|
36
|
|
4
|
37 boolean inAnApplet = true;
|
|
|
38 boolean inSeparateFrame = false;
|
|
0
|
39
|
|
4
|
40 //
|
|
|
41 // main() is called when run as a java program from the command line.
|
|
|
42 // It simply runs the applet inside a newly-created frame.
|
|
|
43 //
|
|
0
|
44
|
|
4
|
45 public static void main(String[] argv) {
|
|
|
46 VncViewer v = new VncViewer();
|
|
|
47 v.mainArgs = argv;
|
|
|
48 v.inAnApplet = false;
|
|
|
49 v.inSeparateFrame = true;
|
|
|
50 /*
|
|
|
51 * if(argv.length > 1){ v.host = argv[0]; v.port =
|
|
|
52 * Integer.parseInt(argv[1]); }
|
|
|
53 */
|
|
|
54 v.init();
|
|
|
55 v.start();
|
|
|
56 }
|
|
0
|
57
|
|
4
|
58 String[] mainArgs;
|
|
|
59
|
|
15
|
60 MyRfbProto rfb;
|
|
4
|
61 Thread rfbThread;
|
|
0
|
62
|
|
4
|
63 Frame vncFrame;
|
|
|
64 Container vncContainer;
|
|
|
65 ScrollPane desktopScrollPane;
|
|
|
66 GridBagLayout gridbag;
|
|
|
67 ButtonPanel buttonPanel;
|
|
|
68 Label connStatusLabel;
|
|
|
69 VncCanvas vc;
|
|
|
70 OptionsFrame options;
|
|
|
71 ClipboardFrame clipboard;
|
|
|
72 RecordingFrame rec;
|
|
0
|
73
|
|
4
|
74 // Control session recording.
|
|
|
75 Object recordingSync;
|
|
|
76 String sessionFileName;
|
|
|
77 boolean recordingActive;
|
|
|
78 boolean recordingStatusChanged;
|
|
|
79 String cursorUpdatesDef;
|
|
|
80 String eightBitColorsDef;
|
|
0
|
81
|
|
4
|
82 // Variables read from parameter values.
|
|
|
83 String socketFactory;
|
|
|
84 String host;
|
|
|
85 int port;
|
|
|
86 String passwordParam;
|
|
|
87 boolean showControls;
|
|
|
88 boolean offerRelogin;
|
|
|
89 boolean showOfflineDesktop;
|
|
|
90 int deferScreenUpdates;
|
|
|
91 int deferCursorUpdates;
|
|
|
92 int deferUpdateRequests;
|
|
|
93 int debugStatsExcludeUpdates;
|
|
|
94 int debugStatsMeasureUpdates;
|
|
0
|
95
|
|
4
|
96 // Reference to this applet for inter-applet communication.
|
|
|
97 public static java.applet.Applet refApplet;
|
|
0
|
98
|
|
4
|
99 //
|
|
|
100 // init()
|
|
|
101 //
|
|
0
|
102
|
|
4
|
103 public void init() {
|
|
0
|
104
|
|
4
|
105 readParameters();
|
|
0
|
106
|
|
4
|
107 refApplet = this;
|
|
0
|
108
|
|
4
|
109 if (inSeparateFrame) {
|
|
|
110 vncFrame = new Frame("TightVNC");
|
|
|
111 if (!inAnApplet) {
|
|
|
112 vncFrame.add("Center", this);
|
|
|
113 }
|
|
|
114 vncContainer = vncFrame;
|
|
|
115 } else {
|
|
|
116 vncContainer = this;
|
|
|
117 }
|
|
0
|
118
|
|
4
|
119 recordingSync = new Object();
|
|
0
|
120
|
|
4
|
121 options = new OptionsFrame(this);
|
|
|
122 clipboard = new ClipboardFrame(this);
|
|
|
123 if (RecordingFrame.checkSecurity())
|
|
|
124 rec = new RecordingFrame(this);
|
|
0
|
125
|
|
4
|
126 sessionFileName = null;
|
|
|
127 recordingActive = false;
|
|
|
128 recordingStatusChanged = false;
|
|
|
129 cursorUpdatesDef = null;
|
|
|
130 eightBitColorsDef = null;
|
|
0
|
131
|
|
4
|
132 if (inSeparateFrame)
|
|
|
133 vncFrame.addWindowListener(this);
|
|
0
|
134
|
|
4
|
135 rfbThread = new Thread(this);
|
|
|
136 rfbThread.start();
|
|
|
137 }
|
|
0
|
138
|
|
4
|
139 public void update(Graphics g) {
|
|
|
140 }
|
|
0
|
141
|
|
4
|
142 //
|
|
|
143 // run() - executed by the rfbThread to deal with the RFB socket.
|
|
|
144 //
|
|
|
145
|
|
|
146 public void run() {
|
|
0
|
147
|
|
4
|
148 gridbag = new GridBagLayout();
|
|
|
149 vncContainer.setLayout(gridbag);
|
|
0
|
150
|
|
4
|
151 GridBagConstraints gbc = new GridBagConstraints();
|
|
|
152 gbc.gridwidth = GridBagConstraints.REMAINDER;
|
|
|
153 gbc.anchor = GridBagConstraints.NORTHWEST;
|
|
0
|
154
|
|
4
|
155 if (showControls) {
|
|
|
156 buttonPanel = new ButtonPanel(this);
|
|
|
157 gridbag.setConstraints(buttonPanel, gbc);
|
|
|
158 vncContainer.add(buttonPanel);
|
|
|
159 }
|
|
|
160
|
|
10
|
161 /*****************************************************************************/
|
|
4
|
162 vncFrame.pack();
|
|
|
163 vncFrame.setVisible(true);
|
|
|
164 try {
|
|
16
|
165
|
|
|
166
|
|
6
|
167 rfb = new MyRfbProto(host, port, this);
|
|
10
|
168 rfb.readServerInit();
|
|
|
169
|
|
4
|
170 createCanvas(0, 0);
|
|
|
171 } catch (IOException e) {
|
|
|
172 System.out.println("Socket error");
|
|
|
173 System.exit(0);
|
|
|
174 }
|
|
|
175
|
|
|
176 gbc.weightx = 1.0;
|
|
|
177 gbc.weighty = 1.0;
|
|
|
178
|
|
10
|
179 if (inSeparateFrame) {
|
|
0
|
180
|
|
4
|
181 // Create a panel which itself is resizeable and can hold
|
|
|
182 // non-resizeable VncCanvas component at the top left corner.
|
|
|
183 Panel canvasPanel = new Panel();
|
|
|
184 canvasPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
|
|
|
185 canvasPanel.add(vc);
|
|
0
|
186
|
|
4
|
187 // Create a ScrollPane which will hold a panel with VncCanvas
|
|
|
188 // inside.
|
|
|
189 desktopScrollPane = new ScrollPane(ScrollPane.SCROLLBARS_AS_NEEDED);
|
|
|
190 gbc.fill = GridBagConstraints.BOTH;
|
|
|
191 gridbag.setConstraints(desktopScrollPane, gbc);
|
|
|
192 desktopScrollPane.add(canvasPanel);
|
|
0
|
193
|
|
4
|
194 // Finally, add our ScrollPane to the Frame window.
|
|
|
195 vncFrame.add(desktopScrollPane);
|
|
|
196 vncFrame.setTitle(rfb.desktopName);
|
|
|
197 vncFrame.pack();
|
|
|
198 vc.resizeDesktopFrame();
|
|
0
|
199
|
|
4
|
200 } else {
|
|
0
|
201
|
|
4
|
202 // Just add the VncCanvas component to the Applet.
|
|
|
203 gridbag.setConstraints(vc, gbc);
|
|
|
204 add(vc);
|
|
|
205 validate();
|
|
0
|
206
|
|
4
|
207 }
|
|
10
|
208 /*****************************************************************************/
|
|
0
|
209
|
|
10
|
210
|
|
4
|
211 try {
|
|
0
|
212
|
|
4
|
213 if (showControls)
|
|
|
214 buttonPanel.enableButtons();
|
|
0
|
215
|
|
4
|
216 moveFocusToDesktop();
|
|
|
217 processNormalProtocol();// main loop
|
|
0
|
218
|
|
4
|
219 } catch (NoRouteToHostException e) {
|
|
|
220 fatalError("Network error: no route to server: " + host, e);
|
|
|
221 } catch (UnknownHostException e) {
|
|
|
222 fatalError("Network error: server name unknown: " + host, e);
|
|
|
223 } catch (ConnectException e) {
|
|
|
224 fatalError("Network error: could not connect to server: " + host
|
|
|
225 + ":" + port, e);
|
|
|
226 } catch (EOFException e) {
|
|
|
227 if (showOfflineDesktop) {
|
|
|
228 e.printStackTrace();
|
|
|
229 System.out
|
|
|
230 .println("Network error: remote side closed connection");
|
|
|
231 if (vc != null) {
|
|
|
232 vc.enableInput(false);
|
|
|
233 }
|
|
|
234 if (inSeparateFrame) {
|
|
|
235 vncFrame.setTitle(rfb.desktopName + " [disconnected]");
|
|
|
236 }
|
|
|
237 if (rfb != null && !rfb.closed())
|
|
|
238 rfb.close();
|
|
|
239 if (showControls && buttonPanel != null) {
|
|
|
240 buttonPanel.disableButtonsOnDisconnect();
|
|
|
241 if (inSeparateFrame) {
|
|
|
242 vncFrame.pack();
|
|
|
243 } else {
|
|
|
244 validate();
|
|
|
245 }
|
|
|
246 }
|
|
|
247 } else {
|
|
|
248 fatalError("Network error: remote side closed connection", e);
|
|
|
249 }
|
|
|
250 } catch (IOException e) {
|
|
|
251 String str = e.getMessage();
|
|
|
252 if (str != null && str.length() != 0) {
|
|
|
253 fatalError("Network Error: " + str, e);
|
|
|
254 } else {
|
|
|
255 fatalError(e.toString(), e);
|
|
|
256 }
|
|
|
257 } catch (Exception e) {
|
|
|
258 String str = e.getMessage();
|
|
|
259 if (str != null && str.length() != 0) {
|
|
|
260 fatalError("Error: " + str, e);
|
|
|
261 } else {
|
|
|
262 fatalError(e.toString(), e);
|
|
|
263 }
|
|
|
264 }
|
|
|
265
|
|
0
|
266 }
|
|
|
267
|
|
4
|
268 //
|
|
|
269 // Create a VncCanvas instance.
|
|
|
270 //
|
|
0
|
271
|
|
4
|
272 void createCanvas(int maxWidth, int maxHeight) throws IOException {
|
|
|
273 // Determine if Java 2D API is available and use a special
|
|
|
274 // version of VncCanvas if it is present.
|
|
|
275 vc = null;
|
|
|
276 try {
|
|
|
277 // This throws ClassNotFoundException if there is no Java 2D API.
|
|
|
278 Class cl = Class.forName("java.awt.Graphics2D");
|
|
|
279 // If we could load Graphics2D class, then we can use VncCanvas2D.
|
|
|
280 cl = Class.forName("VncCanvas2");
|
|
|
281 Class[] argClasses = { this.getClass(), Integer.TYPE, Integer.TYPE };
|
|
|
282 java.lang.reflect.Constructor cstr = cl.getConstructor(argClasses);
|
|
|
283 Object[] argObjects = { this, new Integer(maxWidth),
|
|
|
284 new Integer(maxHeight) };
|
|
|
285 vc = (VncCanvas) cstr.newInstance(argObjects);
|
|
|
286 } catch (Exception e) {
|
|
|
287 System.out.println("Warning: Java 2D API is not available");
|
|
|
288 }
|
|
0
|
289
|
|
4
|
290 // If we failed to create VncCanvas2D, use old VncCanvas.
|
|
|
291 if (vc == null)
|
|
|
292 vc = new VncCanvas(this, maxWidth, maxHeight);
|
|
|
293 }
|
|
0
|
294
|
|
4
|
295 //
|
|
|
296 // Process RFB socket messages.
|
|
|
297 // If the rfbThread is being stopped, ignore any exceptions,
|
|
|
298 // otherwise rethrow the exception so it can be handled.
|
|
|
299 //
|
|
0
|
300
|
|
4
|
301 void processNormalProtocol() throws Exception {
|
|
|
302 try {
|
|
|
303 vc.processNormalProtocol();// main loop
|
|
|
304 } catch (Exception e) {
|
|
|
305 if (rfbThread == null) {
|
|
|
306 System.out.println("Ignoring RFB socket exceptions"
|
|
|
307 + " because applet is stopping");
|
|
|
308 } else {
|
|
|
309 throw e;
|
|
|
310 }
|
|
|
311 }
|
|
|
312 }
|
|
0
|
313
|
|
4
|
314 //
|
|
|
315 // Connect to the RFB server and authenticate the user.
|
|
|
316 //
|
|
0
|
317
|
|
4
|
318 void connectAndAuthenticate() throws Exception {
|
|
|
319 showConnectionStatus("Initializing...");
|
|
|
320 if (inSeparateFrame) {
|
|
|
321 vncFrame.pack();
|
|
15
|
322 vncFrame.setVisible(true);
|
|
4
|
323 } else {
|
|
|
324 validate();
|
|
|
325 }
|
|
|
326
|
|
|
327 showConnectionStatus("Connecting to " + host + ", port " + port + "...");
|
|
0
|
328
|
|
15
|
329 rfb = new MyRfbProto(host, port, this);
|
|
4
|
330 showConnectionStatus("Connected to server");
|
|
0
|
331
|
|
4
|
332 rfb.readVersionMsg();
|
|
|
333 showConnectionStatus("RFB server supports protocol version "
|
|
|
334 + rfb.serverMajor + "." + rfb.serverMinor);
|
|
0
|
335
|
|
4
|
336 rfb.writeVersionMsg();
|
|
|
337 showConnectionStatus("Using RFB protocol version " + rfb.clientMajor
|
|
|
338 + "." + rfb.clientMinor);
|
|
0
|
339
|
|
4
|
340 int secType = rfb.negotiateSecurity();
|
|
|
341 int authType;
|
|
|
342 if (secType == RfbProto.SecTypeTight) {
|
|
|
343 showConnectionStatus("Enabling TightVNC protocol extensions");
|
|
|
344 rfb.setupTunneling();
|
|
|
345 authType = rfb.negotiateAuthenticationTight();
|
|
|
346 } else {
|
|
|
347 authType = secType;
|
|
|
348 }
|
|
0
|
349
|
|
4
|
350 switch (authType) {
|
|
|
351 case RfbProto.AuthNone:
|
|
|
352 showConnectionStatus("No authentication needed");
|
|
|
353 rfb.authenticateNone();
|
|
|
354 break;
|
|
|
355 case RfbProto.AuthVNC:
|
|
|
356 showConnectionStatus("Performing standard VNC authentication");
|
|
|
357 if (passwordParam != null) {
|
|
|
358 rfb.authenticateVNC(passwordParam);
|
|
|
359 } else {
|
|
|
360 String pw = askPassword();
|
|
|
361 rfb.authenticateVNC(pw);
|
|
|
362 }
|
|
|
363 break;
|
|
|
364 default:
|
|
|
365 throw new Exception("Unknown authentication scheme " + authType);
|
|
|
366 }
|
|
|
367 }
|
|
0
|
368
|
|
4
|
369 //
|
|
|
370 // Show a message describing the connection status.
|
|
|
371 // To hide the connection status label, use (msg == null).
|
|
|
372 //
|
|
0
|
373
|
|
4
|
374 void showConnectionStatus(String msg) {
|
|
|
375 if (msg == null) {
|
|
|
376 if (vncContainer.isAncestorOf(connStatusLabel)) {
|
|
|
377 vncContainer.remove(connStatusLabel);
|
|
|
378 }
|
|
|
379 return;
|
|
|
380 }
|
|
0
|
381
|
|
4
|
382 System.out.println(msg);
|
|
0
|
383
|
|
4
|
384 if (connStatusLabel == null) {
|
|
|
385 connStatusLabel = new Label("Status: " + msg);
|
|
|
386 connStatusLabel.setFont(new Font("Helvetica", Font.PLAIN, 12));
|
|
|
387 } else {
|
|
|
388 connStatusLabel.setText("Status: " + msg);
|
|
|
389 }
|
|
0
|
390
|
|
4
|
391 if (!vncContainer.isAncestorOf(connStatusLabel)) {
|
|
|
392 GridBagConstraints gbc = new GridBagConstraints();
|
|
|
393 gbc.gridwidth = GridBagConstraints.REMAINDER;
|
|
|
394 gbc.fill = GridBagConstraints.HORIZONTAL;
|
|
|
395 gbc.anchor = GridBagConstraints.NORTHWEST;
|
|
|
396 gbc.weightx = 1.0;
|
|
|
397 gbc.weighty = 1.0;
|
|
|
398 gbc.insets = new Insets(20, 30, 20, 30);
|
|
|
399 gridbag.setConstraints(connStatusLabel, gbc);
|
|
|
400 vncContainer.add(connStatusLabel);
|
|
|
401 }
|
|
0
|
402
|
|
4
|
403 if (inSeparateFrame) {
|
|
|
404 vncFrame.pack();
|
|
|
405 } else {
|
|
|
406 validate();
|
|
|
407 }
|
|
|
408 }
|
|
0
|
409
|
|
4
|
410 //
|
|
|
411 // Show an authentication panel.
|
|
|
412 //
|
|
0
|
413
|
|
4
|
414 String askPassword() throws Exception {
|
|
|
415 showConnectionStatus(null);
|
|
|
416
|
|
|
417 AuthPanel authPanel = new AuthPanel(this);
|
|
0
|
418
|
|
4
|
419 GridBagConstraints gbc = new GridBagConstraints();
|
|
|
420 gbc.gridwidth = GridBagConstraints.REMAINDER;
|
|
|
421 gbc.anchor = GridBagConstraints.NORTHWEST;
|
|
|
422 gbc.weightx = 1.0;
|
|
|
423 gbc.weighty = 1.0;
|
|
|
424 gbc.ipadx = 100;
|
|
|
425 gbc.ipady = 50;
|
|
|
426 gridbag.setConstraints(authPanel, gbc);
|
|
|
427 vncContainer.add(authPanel);
|
|
0
|
428
|
|
4
|
429 if (inSeparateFrame) {
|
|
|
430 vncFrame.pack();
|
|
|
431 } else {
|
|
|
432 validate();
|
|
|
433 }
|
|
0
|
434
|
|
4
|
435 authPanel.moveFocusToDefaultField();
|
|
|
436 String pw = authPanel.getPassword();
|
|
|
437 vncContainer.remove(authPanel);
|
|
0
|
438
|
|
4
|
439 return pw;
|
|
|
440 }
|
|
0
|
441
|
|
4
|
442 //
|
|
|
443 // Do the rest of the protocol initialisation.
|
|
|
444 //
|
|
0
|
445
|
|
4
|
446 void doProtocolInitialisation() throws IOException {
|
|
|
447 rfb.writeClientInit();
|
|
|
448 rfb.readServerInit();
|
|
0
|
449
|
|
4
|
450 System.out.println("Desktop name is " + rfb.desktopName);
|
|
|
451 System.out.println("Desktop size is " + rfb.framebufferWidth + " x "
|
|
|
452 + rfb.framebufferHeight);
|
|
|
453
|
|
|
454 setEncodings();
|
|
0
|
455
|
|
4
|
456 showConnectionStatus(null);
|
|
|
457 }
|
|
0
|
458
|
|
4
|
459 //
|
|
|
460 // Send current encoding list to the RFB server.
|
|
|
461 //
|
|
0
|
462
|
|
4
|
463 int[] encodingsSaved;
|
|
|
464 int nEncodingsSaved;
|
|
0
|
465
|
|
4
|
466 void setEncodings() {
|
|
|
467 setEncodings(false);
|
|
|
468 }
|
|
0
|
469
|
|
4
|
470 void autoSelectEncodings() {
|
|
|
471 setEncodings(true);
|
|
|
472 }
|
|
0
|
473
|
|
4
|
474 void setEncodings(boolean autoSelectOnly) {
|
|
|
475 if (options == null || rfb == null || !rfb.inNormalProtocol)
|
|
|
476 return;
|
|
0
|
477
|
|
4
|
478 int preferredEncoding = options.preferredEncoding;
|
|
|
479 if (preferredEncoding == -1) {
|
|
|
480 long kbitsPerSecond = rfb.kbitsPerSecond();
|
|
|
481 if (nEncodingsSaved < 1) {
|
|
|
482 // Choose Tight or ZRLE encoding for the very first update.
|
|
|
483 System.out.println("Using Tight/ZRLE encodings");
|
|
|
484 preferredEncoding = RfbProto.EncodingTight;
|
|
|
485 } else if (kbitsPerSecond > 2000
|
|
|
486 && encodingsSaved[0] != RfbProto.EncodingHextile) {
|
|
|
487 // Switch to Hextile if the connection speed is above 2Mbps.
|
|
|
488 System.out.println("Throughput " + kbitsPerSecond
|
|
|
489 + " kbit/s - changing to Hextile encoding");
|
|
|
490 preferredEncoding = RfbProto.EncodingHextile;
|
|
|
491 } else if (kbitsPerSecond < 1000
|
|
|
492 && encodingsSaved[0] != RfbProto.EncodingTight) {
|
|
|
493 // Switch to Tight/ZRLE if the connection speed is below 1Mbps.
|
|
|
494 System.out.println("Throughput " + kbitsPerSecond
|
|
|
495 + " kbit/s - changing to Tight/ZRLE encodings");
|
|
|
496 preferredEncoding = RfbProto.EncodingTight;
|
|
|
497 } else {
|
|
|
498 // Don't change the encoder.
|
|
|
499 if (autoSelectOnly)
|
|
|
500 return;
|
|
|
501 preferredEncoding = encodingsSaved[0];
|
|
|
502 }
|
|
|
503 } else {
|
|
|
504 // Auto encoder selection is not enabled.
|
|
|
505 if (autoSelectOnly)
|
|
|
506 return;
|
|
|
507 }
|
|
0
|
508
|
|
4
|
509 int[] encodings = new int[20];
|
|
|
510 int nEncodings = 0;
|
|
0
|
511
|
|
4
|
512 encodings[nEncodings++] = preferredEncoding;
|
|
|
513 if (options.useCopyRect) {
|
|
|
514 encodings[nEncodings++] = RfbProto.EncodingCopyRect;
|
|
|
515 }
|
|
0
|
516
|
|
4
|
517 if (preferredEncoding != RfbProto.EncodingTight) {
|
|
|
518 encodings[nEncodings++] = RfbProto.EncodingTight;
|
|
|
519 }
|
|
|
520 if (preferredEncoding != RfbProto.EncodingZRLE) {
|
|
|
521 encodings[nEncodings++] = RfbProto.EncodingZRLE;
|
|
|
522 }
|
|
|
523 if (preferredEncoding != RfbProto.EncodingHextile) {
|
|
|
524 encodings[nEncodings++] = RfbProto.EncodingHextile;
|
|
|
525 }
|
|
|
526 if (preferredEncoding != RfbProto.EncodingZlib) {
|
|
|
527 encodings[nEncodings++] = RfbProto.EncodingZlib;
|
|
|
528 }
|
|
|
529 if (preferredEncoding != RfbProto.EncodingCoRRE) {
|
|
|
530 encodings[nEncodings++] = RfbProto.EncodingCoRRE;
|
|
|
531 }
|
|
|
532 if (preferredEncoding != RfbProto.EncodingRRE) {
|
|
|
533 encodings[nEncodings++] = RfbProto.EncodingRRE;
|
|
|
534 }
|
|
|
535
|
|
|
536 if (options.compressLevel >= 0 && options.compressLevel <= 9) {
|
|
|
537 encodings[nEncodings++] = RfbProto.EncodingCompressLevel0
|
|
|
538 + options.compressLevel;
|
|
|
539 }
|
|
|
540 if (options.jpegQuality >= 0 && options.jpegQuality <= 9) {
|
|
|
541 encodings[nEncodings++] = RfbProto.EncodingQualityLevel0
|
|
|
542 + options.jpegQuality;
|
|
|
543 }
|
|
0
|
544
|
|
4
|
545 if (options.requestCursorUpdates) {
|
|
|
546 encodings[nEncodings++] = RfbProto.EncodingXCursor;
|
|
|
547 encodings[nEncodings++] = RfbProto.EncodingRichCursor;
|
|
|
548 if (!options.ignoreCursorUpdates)
|
|
|
549 encodings[nEncodings++] = RfbProto.EncodingPointerPos;
|
|
|
550 }
|
|
|
551
|
|
|
552 encodings[nEncodings++] = RfbProto.EncodingLastRect;
|
|
|
553 encodings[nEncodings++] = RfbProto.EncodingNewFBSize;
|
|
0
|
554
|
|
4
|
555 boolean encodingsWereChanged = false;
|
|
|
556 if (nEncodings != nEncodingsSaved) {
|
|
|
557 encodingsWereChanged = true;
|
|
|
558 } else {
|
|
|
559 for (int i = 0; i < nEncodings; i++) {
|
|
|
560 if (encodings[i] != encodingsSaved[i]) {
|
|
|
561 encodingsWereChanged = true;
|
|
|
562 break;
|
|
|
563 }
|
|
|
564 }
|
|
|
565 }
|
|
0
|
566
|
|
4
|
567 if (encodingsWereChanged) {
|
|
|
568 try {
|
|
|
569 rfb.writeSetEncodings(encodings, nEncodings);
|
|
|
570 if (vc != null) {
|
|
|
571 vc.softCursorFree();
|
|
|
572 }
|
|
|
573 } catch (Exception e) {
|
|
|
574 e.printStackTrace();
|
|
|
575 }
|
|
|
576 encodingsSaved = encodings;
|
|
|
577 nEncodingsSaved = nEncodings;
|
|
|
578 }
|
|
|
579 }
|
|
0
|
580
|
|
4
|
581 //
|
|
|
582 // setCutText() - send the given cut text to the RFB server.
|
|
|
583 //
|
|
0
|
584
|
|
4
|
585 void setCutText(String text) {
|
|
|
586 try {
|
|
|
587 if (rfb != null && rfb.inNormalProtocol) {
|
|
|
588 rfb.writeClientCutText(text);
|
|
|
589 }
|
|
|
590 } catch (Exception e) {
|
|
|
591 e.printStackTrace();
|
|
|
592 }
|
|
|
593 }
|
|
0
|
594
|
|
4
|
595 //
|
|
|
596 // Order change in session recording status. To stop recording, pass
|
|
|
597 // null in place of the fname argument.
|
|
|
598 //
|
|
0
|
599
|
|
4
|
600 void setRecordingStatus(String fname) {
|
|
|
601 synchronized (recordingSync) {
|
|
|
602 sessionFileName = fname;
|
|
|
603 recordingStatusChanged = true;
|
|
|
604 }
|
|
|
605 }
|
|
|
606
|
|
|
607 //
|
|
|
608 // Start or stop session recording. Returns true if this method call
|
|
|
609 // causes recording of a new session.
|
|
|
610 //
|
|
0
|
611
|
|
4
|
612 boolean checkRecordingStatus() throws IOException {
|
|
|
613 synchronized (recordingSync) {
|
|
|
614 if (recordingStatusChanged) {
|
|
|
615 recordingStatusChanged = false;
|
|
|
616 if (sessionFileName != null) {
|
|
|
617 startRecording();
|
|
|
618 return true;
|
|
|
619 } else {
|
|
|
620 stopRecording();
|
|
|
621 }
|
|
|
622 }
|
|
|
623 }
|
|
|
624 return false;
|
|
|
625 }
|
|
0
|
626
|
|
4
|
627 //
|
|
|
628 // Start session recording.
|
|
|
629 //
|
|
0
|
630
|
|
4
|
631 protected void startRecording() throws IOException {
|
|
|
632 synchronized (recordingSync) {
|
|
|
633 if (!recordingActive) {
|
|
|
634 // Save settings to restore them after recording the session.
|
|
|
635 cursorUpdatesDef = options.choices[options.cursorUpdatesIndex]
|
|
|
636 .getSelectedItem();
|
|
|
637 eightBitColorsDef = options.choices[options.eightBitColorsIndex]
|
|
|
638 .getSelectedItem();
|
|
|
639 // Set options to values suitable for recording.
|
|
|
640 options.choices[options.cursorUpdatesIndex].select("Disable");
|
|
|
641 options.choices[options.cursorUpdatesIndex].setEnabled(false);
|
|
|
642 options.setEncodings();
|
|
|
643 options.choices[options.eightBitColorsIndex].select("No");
|
|
|
644 options.choices[options.eightBitColorsIndex].setEnabled(false);
|
|
|
645 options.setColorFormat();
|
|
|
646 } else {
|
|
|
647 rfb.closeSession();
|
|
|
648 }
|
|
|
649
|
|
|
650 System.out.println("Recording the session in " + sessionFileName);
|
|
|
651 rfb.startSession(sessionFileName);
|
|
|
652 recordingActive = true;
|
|
|
653 }
|
|
|
654 }
|
|
0
|
655
|
|
4
|
656 //
|
|
|
657 // Stop session recording.
|
|
|
658 //
|
|
0
|
659
|
|
4
|
660 protected void stopRecording() throws IOException {
|
|
|
661 synchronized (recordingSync) {
|
|
|
662 if (recordingActive) {
|
|
|
663 // Restore options.
|
|
|
664 options.choices[options.cursorUpdatesIndex]
|
|
|
665 .select(cursorUpdatesDef);
|
|
|
666 options.choices[options.cursorUpdatesIndex].setEnabled(true);
|
|
|
667 options.setEncodings();
|
|
|
668 options.choices[options.eightBitColorsIndex]
|
|
|
669 .select(eightBitColorsDef);
|
|
|
670 options.choices[options.eightBitColorsIndex].setEnabled(true);
|
|
|
671 options.setColorFormat();
|
|
|
672
|
|
|
673 rfb.closeSession();
|
|
|
674 System.out.println("Session recording stopped.");
|
|
|
675 }
|
|
|
676 sessionFileName = null;
|
|
|
677 recordingActive = false;
|
|
|
678 }
|
|
|
679 }
|
|
0
|
680
|
|
4
|
681 //
|
|
|
682 // readParameters() - read parameters from the html source or from the
|
|
|
683 // command line. On the command line, the arguments are just a sequence of
|
|
|
684 // param_name/param_value pairs where the names and values correspond to
|
|
|
685 // those expected in the html applet tag source.
|
|
|
686 //
|
|
0
|
687
|
|
4
|
688 void readParameters() {
|
|
12
|
689 // host = readParameter("HOST", !inAnApplet);
|
|
4
|
690 if (mainArgs.length > 0)
|
|
|
691 host = mainArgs[0];
|
|
|
692 else
|
|
|
693 host = "hades.cr.ie.u-ryukyu.ac.jp";
|
|
|
694 /*
|
|
|
695 * if (host == null) { host = getCodeBase().getHost(); if
|
|
|
696 * (host.equals("")) { fatalError("HOST parameter not specified"); } }
|
|
|
697 */
|
|
0
|
698
|
|
12
|
699 // port = readIntParameter("PORT", 5550);
|
|
4
|
700 if (mainArgs.length > 1)
|
|
|
701 port = Integer.parseInt(mainArgs[1]);
|
|
|
702 else
|
|
|
703 port = 5550;
|
|
|
704 // Read "ENCPASSWORD" or "PASSWORD" parameter if specified.
|
|
|
705 readPasswordParameters();
|
|
|
706
|
|
|
707 String str;
|
|
|
708 if (inAnApplet) {
|
|
|
709 str = readParameter("Open New Window", false);
|
|
|
710 if (str != null && str.equalsIgnoreCase("Yes"))
|
|
|
711 inSeparateFrame = true;
|
|
|
712 }
|
|
0
|
713
|
|
4
|
714 // "Show Controls" set to "No" disables button panel.
|
|
|
715 showControls = true;
|
|
|
716 str = readParameter("Show Controls", false);
|
|
|
717 if (str != null && str.equalsIgnoreCase("No"))
|
|
|
718 showControls = false;
|
|
0
|
719
|
|
4
|
720 // "Offer Relogin" set to "No" disables "Login again" and "Close
|
|
|
721 // window" buttons under error messages in applet mode.
|
|
|
722 offerRelogin = true;
|
|
|
723 str = readParameter("Offer Relogin", false);
|
|
|
724 if (str != null && str.equalsIgnoreCase("No"))
|
|
|
725 offerRelogin = false;
|
|
|
726
|
|
|
727 // Do we continue showing desktop on remote disconnect?
|
|
|
728 showOfflineDesktop = false;
|
|
|
729 str = readParameter("Show Offline Desktop", false);
|
|
|
730 if (str != null && str.equalsIgnoreCase("Yes"))
|
|
|
731 showOfflineDesktop = true;
|
|
0
|
732
|
|
4
|
733 // Fine tuning options.
|
|
|
734 deferScreenUpdates = readIntParameter("Defer screen updates", 20);
|
|
|
735 deferCursorUpdates = readIntParameter("Defer cursor updates", 10);
|
|
|
736 deferUpdateRequests = readIntParameter("Defer update requests", 0);
|
|
0
|
737
|
|
4
|
738 // Debugging options.
|
|
|
739 debugStatsExcludeUpdates = readIntParameter("DEBUG_XU", 0);
|
|
|
740 debugStatsMeasureUpdates = readIntParameter("DEBUG_CU", 0);
|
|
0
|
741
|
|
4
|
742 // SocketFactory.
|
|
|
743 socketFactory = readParameter("SocketFactory", false);
|
|
|
744 }
|
|
0
|
745
|
|
4
|
746 //
|
|
|
747 // Read password parameters. If an "ENCPASSWORD" parameter is set,
|
|
|
748 // then decrypt the password into the passwordParam string. Otherwise,
|
|
|
749 // try to read the "PASSWORD" parameter directly to passwordParam.
|
|
|
750 //
|
|
0
|
751
|
|
4
|
752 private void readPasswordParameters() {
|
|
|
753 String encPasswordParam = readParameter("ENCPASSWORD", false);
|
|
|
754 if (encPasswordParam == null) {
|
|
|
755 passwordParam = readParameter("PASSWORD", false);
|
|
0
|
756
|
|
4
|
757 } else {
|
|
|
758 // ENCPASSWORD is hexascii-encoded. Decode.
|
|
|
759 byte[] pw = { 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
|
760 int len = encPasswordParam.length() / 2;
|
|
|
761 if (len > 8)
|
|
|
762 len = 8;
|
|
|
763 for (int i = 0; i < len; i++) {
|
|
|
764 String hex = encPasswordParam.substring(i * 2, i * 2 + 2);
|
|
|
765 Integer x = new Integer(Integer.parseInt(hex, 16));
|
|
|
766 pw[i] = x.byteValue();
|
|
|
767 }
|
|
|
768 // Decrypt the password.
|
|
|
769 byte[] key = { 23, 82, 107, 6, 35, 78, 88, 7 };
|
|
|
770 DesCipher des = new DesCipher(key);
|
|
|
771 des.decrypt(pw, 0, pw, 0);
|
|
|
772 passwordParam = new String(pw);
|
|
|
773
|
|
|
774 }
|
|
|
775 }
|
|
0
|
776
|
|
4
|
777 public String readParameter(String name, boolean required) {
|
|
|
778 if (inAnApplet) {
|
|
|
779 String s = getParameter(name);
|
|
|
780 if ((s == null) && required) {
|
|
|
781 fatalError(name + " parameter not specified");
|
|
|
782 }
|
|
|
783 return s;
|
|
|
784 }
|
|
0
|
785
|
|
4
|
786 for (int i = 0; i < mainArgs.length; i += 2) {
|
|
|
787 if (mainArgs[i].equalsIgnoreCase(name)) {
|
|
|
788 try {
|
|
|
789 return mainArgs[i + 1];
|
|
|
790 } catch (Exception e) {
|
|
|
791 if (required) {
|
|
|
792 fatalError(name + " parameter not specified");
|
|
|
793 }
|
|
|
794 return null;
|
|
|
795 }
|
|
|
796 }
|
|
|
797 }
|
|
|
798 if (required) {
|
|
|
799 fatalError(name + " parameter not specified");
|
|
|
800 }
|
|
|
801 return null;
|
|
0
|
802 }
|
|
4
|
803
|
|
|
804 int readIntParameter(String name, int defaultValue) {
|
|
|
805 String str = readParameter(name, false);
|
|
|
806 int result = defaultValue;
|
|
|
807 if (str != null) {
|
|
|
808 try {
|
|
|
809 result = Integer.parseInt(str);
|
|
|
810 } catch (NumberFormatException e) {
|
|
|
811 }
|
|
|
812 }
|
|
|
813 return result;
|
|
|
814 }
|
|
0
|
815
|
|
4
|
816 //
|
|
|
817 // moveFocusToDesktop() - move keyboard focus either to VncCanvas.
|
|
|
818 //
|
|
0
|
819
|
|
4
|
820 void moveFocusToDesktop() {
|
|
|
821 if (vncContainer != null) {
|
|
|
822 if (vc != null && vncContainer.isAncestorOf(vc))
|
|
|
823 vc.requestFocus();
|
|
|
824 }
|
|
|
825 }
|
|
0
|
826
|
|
4
|
827 //
|
|
|
828 // disconnect() - close connection to server.
|
|
|
829 //
|
|
0
|
830
|
|
4
|
831 synchronized public void disconnect() {
|
|
|
832 System.out.println("Disconnecting");
|
|
0
|
833
|
|
4
|
834 if (vc != null) {
|
|
|
835 double sec = (System.currentTimeMillis() - vc.statStartTime) / 1000.0;
|
|
|
836 double rate = Math.round(vc.statNumUpdates / sec * 100) / 100.0;
|
|
|
837 int nRealRects = vc.statNumPixelRects;
|
|
|
838 int nPseudoRects = vc.statNumTotalRects - vc.statNumPixelRects;
|
|
|
839 System.out.println("Updates received: " + vc.statNumUpdates + " ("
|
|
|
840 + nRealRects + " rectangles + " + nPseudoRects
|
|
|
841 + " pseudo), " + rate + " updates/sec");
|
|
|
842 int numRectsOther = nRealRects - vc.statNumRectsTight
|
|
|
843 - vc.statNumRectsZRLE - vc.statNumRectsHextile
|
|
|
844 - vc.statNumRectsRaw - vc.statNumRectsCopy;
|
|
|
845 System.out.println("Rectangles:" + " Tight=" + vc.statNumRectsTight
|
|
|
846 + "(JPEG=" + vc.statNumRectsTightJPEG + ") ZRLE="
|
|
|
847 + vc.statNumRectsZRLE + " Hextile="
|
|
|
848 + vc.statNumRectsHextile + " Raw=" + vc.statNumRectsRaw
|
|
|
849 + " CopyRect=" + vc.statNumRectsCopy + " other="
|
|
|
850 + numRectsOther);
|
|
0
|
851
|
|
4
|
852 int raw = vc.statNumBytesDecoded;
|
|
|
853 int compressed = vc.statNumBytesEncoded;
|
|
|
854 if (compressed > 0) {
|
|
|
855 double ratio = Math.round((double) raw / compressed * 1000) / 1000.0;
|
|
|
856 System.out.println("Pixel data: " + vc.statNumBytesDecoded
|
|
|
857 + " bytes, " + vc.statNumBytesEncoded
|
|
|
858 + " compressed, ratio " + ratio);
|
|
|
859 }
|
|
|
860 }
|
|
0
|
861
|
|
4
|
862 if (rfb != null && !rfb.closed())
|
|
|
863 rfb.close();
|
|
|
864 options.dispose();
|
|
|
865 clipboard.dispose();
|
|
|
866 if (rec != null)
|
|
|
867 rec.dispose();
|
|
0
|
868
|
|
4
|
869 if (inAnApplet) {
|
|
|
870 showMessage("Disconnected");
|
|
|
871 } else {
|
|
|
872 System.exit(0);
|
|
|
873 }
|
|
|
874 }
|
|
|
875
|
|
|
876 //
|
|
|
877 // fatalError() - print out a fatal error message.
|
|
|
878 // FIXME: Do we really need two versions of the fatalError() method?
|
|
|
879 //
|
|
|
880
|
|
|
881 synchronized public void fatalError(String str) {
|
|
|
882 System.out.println(str);
|
|
0
|
883
|
|
4
|
884 if (inAnApplet) {
|
|
|
885 // vncContainer null, applet not inited,
|
|
|
886 // can not present the error to the user.
|
|
|
887 Thread.currentThread().stop();
|
|
|
888 } else {
|
|
|
889 System.exit(1);
|
|
|
890 }
|
|
|
891 }
|
|
0
|
892
|
|
4
|
893 synchronized public void fatalError(String str, Exception e) {
|
|
0
|
894
|
|
4
|
895 if (rfb != null && rfb.closed()) {
|
|
|
896 // Not necessary to show error message if the error was caused
|
|
|
897 // by I/O problems after the rfb.close() method call.
|
|
|
898 System.out.println("RFB thread finished");
|
|
|
899 return;
|
|
|
900 }
|
|
|
901
|
|
|
902 System.out.println(str);
|
|
|
903 e.printStackTrace();
|
|
0
|
904
|
|
4
|
905 if (rfb != null)
|
|
|
906 rfb.close();
|
|
0
|
907
|
|
4
|
908 if (inAnApplet) {
|
|
|
909 showMessage(str);
|
|
|
910 } else {
|
|
|
911 System.exit(1);
|
|
|
912 }
|
|
|
913 }
|
|
0
|
914
|
|
4
|
915 //
|
|
|
916 // Show message text and optionally "Relogin" and "Close" buttons.
|
|
|
917 //
|
|
0
|
918
|
|
4
|
919 void showMessage(String msg) {
|
|
|
920 vncContainer.removeAll();
|
|
0
|
921
|
|
4
|
922 Label errLabel = new Label(msg, Label.CENTER);
|
|
|
923 errLabel.setFont(new Font("Helvetica", Font.PLAIN, 12));
|
|
0
|
924
|
|
4
|
925 if (offerRelogin) {
|
|
0
|
926
|
|
4
|
927 Panel gridPanel = new Panel(new GridLayout(0, 1));
|
|
|
928 Panel outerPanel = new Panel(new FlowLayout(FlowLayout.LEFT));
|
|
|
929 outerPanel.add(gridPanel);
|
|
|
930 vncContainer.setLayout(new FlowLayout(FlowLayout.LEFT, 30, 16));
|
|
|
931 vncContainer.add(outerPanel);
|
|
|
932 Panel textPanel = new Panel(new FlowLayout(FlowLayout.CENTER));
|
|
|
933 textPanel.add(errLabel);
|
|
|
934 gridPanel.add(textPanel);
|
|
|
935 gridPanel.add(new ReloginPanel(this));
|
|
|
936
|
|
|
937 } else {
|
|
0
|
938
|
|
4
|
939 vncContainer.setLayout(new FlowLayout(FlowLayout.LEFT, 30, 30));
|
|
|
940 vncContainer.add(errLabel);
|
|
|
941
|
|
|
942 }
|
|
0
|
943
|
|
4
|
944 if (inSeparateFrame) {
|
|
|
945 vncFrame.pack();
|
|
|
946 } else {
|
|
|
947 validate();
|
|
|
948 }
|
|
|
949 }
|
|
0
|
950
|
|
4
|
951 //
|
|
|
952 // Stop the applet.
|
|
|
953 // Main applet thread will terminate on first exception
|
|
|
954 // after seeing that rfbThread has been set to null.
|
|
|
955 //
|
|
0
|
956
|
|
4
|
957 public void stop() {
|
|
|
958 System.out.println("Stopping applet");
|
|
|
959 rfbThread = null;
|
|
|
960 }
|
|
0
|
961
|
|
4
|
962 //
|
|
|
963 // This method is called before the applet is destroyed.
|
|
|
964 //
|
|
|
965
|
|
|
966 public void destroy() {
|
|
|
967 System.out.println("Destroying applet");
|
|
0
|
968
|
|
4
|
969 vncContainer.removeAll();
|
|
|
970 options.dispose();
|
|
|
971 clipboard.dispose();
|
|
|
972 if (rec != null)
|
|
|
973 rec.dispose();
|
|
|
974 if (rfb != null && !rfb.closed())
|
|
|
975 rfb.close();
|
|
|
976 if (inSeparateFrame)
|
|
|
977 vncFrame.dispose();
|
|
|
978 }
|
|
0
|
979
|
|
4
|
980 //
|
|
|
981 // Start/stop receiving mouse events.
|
|
|
982 //
|
|
|
983
|
|
|
984 public void enableInput(boolean enable) {
|
|
|
985 vc.enableInput(enable);
|
|
|
986 }
|
|
0
|
987
|
|
4
|
988 //
|
|
|
989 // Close application properly on window close event.
|
|
|
990 //
|
|
0
|
991
|
|
4
|
992 public void windowClosing(WindowEvent evt) {
|
|
|
993 System.out.println("Closing window");
|
|
|
994 if (rfb != null)
|
|
|
995 disconnect();
|
|
0
|
996
|
|
4
|
997 vncContainer.hide();
|
|
|
998
|
|
|
999 if (!inAnApplet) {
|
|
|
1000 System.exit(0);
|
|
|
1001 }
|
|
|
1002 }
|
|
0
|
1003
|
|
4
|
1004 //
|
|
|
1005 // Ignore window events we're not interested in.
|
|
|
1006 //
|
|
0
|
1007
|
|
4
|
1008 public void windowActivated(WindowEvent evt) {
|
|
|
1009 }
|
|
|
1010
|
|
|
1011 public void windowDeactivated(WindowEvent evt) {
|
|
|
1012 }
|
|
0
|
1013
|
|
4
|
1014 public void windowOpened(WindowEvent evt) {
|
|
|
1015 }
|
|
|
1016
|
|
|
1017 public void windowClosed(WindowEvent evt) {
|
|
|
1018 }
|
|
0
|
1019
|
|
4
|
1020 public void windowIconified(WindowEvent evt) {
|
|
|
1021 }
|
|
|
1022
|
|
|
1023 public void windowDeiconified(WindowEvent evt) {
|
|
|
1024 }
|
|
0
|
1025 }
|
