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1 package myVncProxy;
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2 //
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3 // Copyright (C) 2001-2004 HorizonLive.com, Inc. All Rights Reserved.
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4 // Copyright (C) 2002 Constantin Kaplinsky. All Rights Reserved.
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5 // Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
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6 //
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7 // This is free software; you can redistribute it and/or modify
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8 // it under the terms of the GNU General Public License as published by
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9 // the Free Software Foundation; either version 2 of the License, or
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10 // (at your option) any later version.
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11 //
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12 // This software is distributed in the hope that it will be useful,
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13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 // GNU General Public License for more details.
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16 //
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17 // You should have received a copy of the GNU General Public License
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18 // along with this software; if not, write to the Free Software
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19 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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20 // USA.
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21 //
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22
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23 //
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24 // VncViewer.java - the VNC viewer applet. This class mainly just sets up the
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25 // user interface, leaving it to the VncCanvas to do the actual rendering of
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26 // a VNC desktop.
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27 //
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28
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29 import java.awt.*;
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30 import java.awt.event.*;
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31 import java.io.*;
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32 import java.net.*;
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33
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34 public class VncViewer extends java.applet.Applet implements
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35 java.lang.Runnable, WindowListener {
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36
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37 boolean inAnApplet = true;
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38 boolean inSeparateFrame = false;
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39
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40 //
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41 // main() is called when run as a java program from the command line.
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42 // It simply runs the applet inside a newly-created frame.
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43 //
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44
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45 public static void main(String[] argv) {
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46 VncViewer v = new VncViewer();
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47 v.mainArgs = argv;
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48 v.inAnApplet = false;
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49 v.inSeparateFrame = true;
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50 /*
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51 * if(argv.length > 1){ v.host = argv[0]; v.port =
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52 * Integer.parseInt(argv[1]); }
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53 */
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54 v.init();
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55 v.start();
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56 }
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57
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58 String[] mainArgs;
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59
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60 // RfbProto rfb;
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61 MyRfbProto rfb;
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62 Thread rfbThread;
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63
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64 Frame vncFrame;
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65 Container vncContainer;
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66 ScrollPane desktopScrollPane;
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67 GridBagLayout gridbag;
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68 ButtonPanel buttonPanel;
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69 Label connStatusLabel;
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70 VncCanvas vc;
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71 OptionsFrame options;
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72 ClipboardFrame clipboard;
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73 RecordingFrame rec;
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74
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75 // Control session recording.
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76 Object recordingSync;
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77 String sessionFileName;
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78 boolean recordingActive;
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79 boolean recordingStatusChanged;
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80 String cursorUpdatesDef;
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81 String eightBitColorsDef;
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82
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83 // Variables read from parameter values.
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84 String socketFactory;
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85 String host;
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86 int port;
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87 String passwordParam;
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88 boolean showControls;
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89 boolean offerRelogin;
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90 boolean showOfflineDesktop;
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91 int deferScreenUpdates;
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92 int deferCursorUpdates;
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93 int deferUpdateRequests;
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94 int debugStatsExcludeUpdates;
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95 int debugStatsMeasureUpdates;
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96
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97 // Reference to this applet for inter-applet communication.
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98 public static java.applet.Applet refApplet;
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99
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100 //
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101 // init()
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102 //
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103
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104 public void init() {
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105
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106 readParameters();
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107
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108 refApplet = this;
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109
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110 if (inSeparateFrame) {
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111 vncFrame = new Frame("TightVNC");
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112 if (!inAnApplet) {
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113 vncFrame.add("Center", this);
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114 }
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115 vncContainer = vncFrame;
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116 } else {
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117 vncContainer = this;
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118 }
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119
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120 recordingSync = new Object();
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121
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122 options = new OptionsFrame(this);
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123 clipboard = new ClipboardFrame(this);
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124 if (RecordingFrame.checkSecurity())
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125 rec = new RecordingFrame(this);
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126
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127 sessionFileName = null;
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128 recordingActive = false;
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129 recordingStatusChanged = false;
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130 cursorUpdatesDef = null;
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131 eightBitColorsDef = null;
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132
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133 if (inSeparateFrame)
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134 vncFrame.addWindowListener(this);
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135
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136 rfbThread = new Thread(this);
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137 rfbThread.start();
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138 }
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139
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140 public void update(Graphics g) {
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141 }
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142
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143 //
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144 // run() - executed by the rfbThread to deal with the RFB socket.
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145 //
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146
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147 public void run() {
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148
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149 gridbag = new GridBagLayout();
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150 vncContainer.setLayout(gridbag);
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151
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152 GridBagConstraints gbc = new GridBagConstraints();
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153 gbc.gridwidth = GridBagConstraints.REMAINDER;
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154 gbc.anchor = GridBagConstraints.NORTHWEST;
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155
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156 if (showControls) {
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157 buttonPanel = new ButtonPanel(this);
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158 gridbag.setConstraints(buttonPanel, gbc);
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159 vncContainer.add(buttonPanel);
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160 }
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161
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162 try {
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163 connectAndAuthenticate();
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164 doProtocolInitialisation();
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165
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166 // FIXME: Use auto-scaling not only in a separate frame.
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167 if (options.autoScale && inSeparateFrame) {
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168 Dimension screenSize;
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169 try {
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170 screenSize = vncContainer.getToolkit().getScreenSize();
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171 } catch (Exception e) {
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172 screenSize = new Dimension(0, 0);
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173 }
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174 createCanvas(screenSize.width - 32, screenSize.height - 32);
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175 } else {
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176 createCanvas(0, 0);
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177 }
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178
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179 gbc.weightx = 1.0;
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180 gbc.weighty = 1.0;
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181
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182 if (inSeparateFrame) {
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183
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184 // Create a panel which itself is resizeable and can hold
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185 // non-resizeable VncCanvas component at the top left corner.
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186 Panel canvasPanel = new Panel();
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187 canvasPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
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188 canvasPanel.add(vc);
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189
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190 // Create a ScrollPane which will hold a panel with VncCanvas
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191 // inside.
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192 desktopScrollPane = new ScrollPane(
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193 ScrollPane.SCROLLBARS_AS_NEEDED);
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194 gbc.fill = GridBagConstraints.BOTH;
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195 gridbag.setConstraints(desktopScrollPane, gbc);
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196 desktopScrollPane.add(canvasPanel);
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197
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198 // Finally, add our ScrollPane to the Frame window.
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199 vncFrame.add(desktopScrollPane);
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200 vncFrame.setTitle(rfb.desktopName);
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201 vncFrame.pack();
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202 vc.resizeDesktopFrame();
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203
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204 } else {
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205
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206 // Just add the VncCanvas component to the Applet.
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207 gridbag.setConstraints(vc, gbc);
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208 add(vc);
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209 validate();
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210
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211 }
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212
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213 if (showControls)
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214 buttonPanel.enableButtons();
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215
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216 moveFocusToDesktop();
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217 processNormalProtocol();// main loop
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218
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219 } catch (NoRouteToHostException e) {
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220 fatalError("Network error: no route to server: " + host, e);
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221 } catch (UnknownHostException e) {
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222 fatalError("Network error: server name unknown: " + host, e);
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223 } catch (ConnectException e) {
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224 fatalError("Network error: could not connect to server: " + host
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225 + ":" + port, e);
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226 } catch (EOFException e) {
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227 if (showOfflineDesktop) {
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228 e.printStackTrace();
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229 System.out
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230 .println("Network error: remote side closed connection");
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231 if (vc != null) {
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232 vc.enableInput(false);
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233 }
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234 if (inSeparateFrame) {
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235 vncFrame.setTitle(rfb.desktopName + " [disconnected]");
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236 }
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237 if (rfb != null && !rfb.closed())
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238 rfb.close();
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239 if (showControls && buttonPanel != null) {
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240 buttonPanel.disableButtonsOnDisconnect();
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241 if (inSeparateFrame) {
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242 vncFrame.pack();
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243 } else {
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244 validate();
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245 }
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246 }
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247 } else {
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248 fatalError("Network error: remote side closed connection", e);
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249 }
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250 } catch (IOException e) {
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251 String str = e.getMessage();
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252 if (str != null && str.length() != 0) {
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253 fatalError("Network Error: " + str, e);
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254 } else {
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255 fatalError(e.toString(), e);
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256 }
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257 } catch (Exception e) {
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258 String str = e.getMessage();
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259 if (str != null && str.length() != 0) {
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260 fatalError("Error: " + str, e);
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261 } else {
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262 fatalError(e.toString(), e);
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263 }
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264 }
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265
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266 }
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267
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268 //
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269 // Create a VncCanvas instance.
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270 //
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271
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272 void createCanvas(int maxWidth, int maxHeight) throws IOException {
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273 // Determine if Java 2D API is available and use a special
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274 // version of VncCanvas if it is present.
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275 vc = null;
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276 try {
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277 // This throws ClassNotFoundException if there is no Java 2D API.
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278 Class cl = Class.forName("java.awt.Graphics2D");
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279 // If we could load Graphics2D class, then we can use VncCanvas2D.
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280 cl = Class.forName("VncCanvas2");
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281 Class[] argClasses = { this.getClass(), Integer.TYPE, Integer.TYPE };
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282 java.lang.reflect.Constructor cstr = cl.getConstructor(argClasses);
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283 Object[] argObjects = { this, new Integer(maxWidth),
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284 new Integer(maxHeight) };
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285 vc = (VncCanvas) cstr.newInstance(argObjects);
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286 } catch (Exception e) {
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287 System.out.println("Warning: Java 2D API is not available");
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288 }
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289
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290 // If we failed to create VncCanvas2D, use old VncCanvas.
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291 if (vc == null)
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292 vc = new VncCanvas(this, maxWidth, maxHeight);
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293 }
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294
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295 //
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296 // Process RFB socket messages.
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297 // If the rfbThread is being stopped, ignore any exceptions,
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298 // otherwise rethrow the exception so it can be handled.
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299 //
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300
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301 void processNormalProtocol() throws Exception {
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302 try {
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303 vc.processNormalProtocol();// main loop
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304 } catch (Exception e) {
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305 if (rfbThread == null) {
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306 System.out.println("Ignoring RFB socket exceptions"
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307 + " because applet is stopping");
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308 } else {
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309 throw e;
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310 }
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311 }
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312 }
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313
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314 //
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315 // Connect to the RFB server and authenticate the user.
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316 //
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317
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318 void connectAndAuthenticate() throws Exception {
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319 showConnectionStatus("Initializing...");
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320 if (inSeparateFrame) {
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321 vncFrame.pack();
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322 vncFrame.setVisible(true);
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323 } else {
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324 validate();
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325 }
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326
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327 showConnectionStatus("Connecting to " + host + ", port " + port + "...");
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328
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329 // rfb = new RfbProto(host, port, this);
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330 rfb = new MyRfbProto(host, port, this);
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331 showConnectionStatus("Connected to server");
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332
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333 rfb.readVersionMsg();
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334 showConnectionStatus("RFB server supports protocol version "
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335 + rfb.serverMajor + "." + rfb.serverMinor);
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336
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337 rfb.writeVersionMsg();
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338 showConnectionStatus("Using RFB protocol version " + rfb.clientMajor
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339 + "." + rfb.clientMinor);
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340
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341 int secType = rfb.negotiateSecurity();
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342 int authType;
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343 if (secType == RfbProto.SecTypeTight) {
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344 showConnectionStatus("Enabling TightVNC protocol extensions");
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345 rfb.setupTunneling();
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346 authType = rfb.negotiateAuthenticationTight();
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347 } else {
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348 authType = secType;
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349 }
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350
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351 switch (authType) {
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352 case RfbProto.AuthNone:
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353 showConnectionStatus("No authentication needed");
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354 rfb.authenticateNone();
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355 break;
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356 case RfbProto.AuthVNC:
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357 showConnectionStatus("Performing standard VNC authentication");
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358 if (passwordParam != null) {
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359 rfb.authenticateVNC(passwordParam);
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360 } else {
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361 String pw = askPassword();
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362 rfb.authenticateVNC(pw);
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363 }
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364 break;
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365 default:
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366 throw new Exception("Unknown authentication scheme " + authType);
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367 }
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368 }
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369
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370 //
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371 // Show a message describing the connection status.
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372 // To hide the connection status label, use (msg == null).
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373 //
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374
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375 void showConnectionStatus(String msg) {
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376 if (msg == null) {
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377 if (vncContainer.isAncestorOf(connStatusLabel)) {
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378 vncContainer.remove(connStatusLabel);
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379 }
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380 return;
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381 }
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382
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383 System.out.println(msg);
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384
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385 if (connStatusLabel == null) {
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386 connStatusLabel = new Label("Status: " + msg);
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387 connStatusLabel.setFont(new Font("Helvetica", Font.PLAIN, 12));
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388 } else {
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389 connStatusLabel.setText("Status: " + msg);
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390 }
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391
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392 if (!vncContainer.isAncestorOf(connStatusLabel)) {
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393 GridBagConstraints gbc = new GridBagConstraints();
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394 gbc.gridwidth = GridBagConstraints.REMAINDER;
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395 gbc.fill = GridBagConstraints.HORIZONTAL;
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396 gbc.anchor = GridBagConstraints.NORTHWEST;
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397 gbc.weightx = 1.0;
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398 gbc.weighty = 1.0;
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399 gbc.insets = new Insets(20, 30, 20, 30);
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400 gridbag.setConstraints(connStatusLabel, gbc);
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401 vncContainer.add(connStatusLabel);
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402 }
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403
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404 if (inSeparateFrame) {
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405 vncFrame.pack();
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406 } else {
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407 validate();
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408 }
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409 }
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0
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410
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4
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411 //
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412 // Show an authentication panel.
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413 //
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414
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4
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415 String askPassword() throws Exception {
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416 showConnectionStatus(null);
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417
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4
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418 AuthPanel authPanel = new AuthPanel(this);
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419
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420 GridBagConstraints gbc = new GridBagConstraints();
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421 gbc.gridwidth = GridBagConstraints.REMAINDER;
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|
|
422 gbc.anchor = GridBagConstraints.NORTHWEST;
|
|
|
423 gbc.weightx = 1.0;
|
|
|
424 gbc.weighty = 1.0;
|
|
|
425 gbc.ipadx = 100;
|
|
|
426 gbc.ipady = 50;
|
|
|
427 gridbag.setConstraints(authPanel, gbc);
|
|
|
428 vncContainer.add(authPanel);
|
|
0
|
429
|
|
4
|
430 if (inSeparateFrame) {
|
|
|
431 vncFrame.pack();
|
|
|
432 } else {
|
|
|
433 validate();
|
|
|
434 }
|
|
0
|
435
|
|
4
|
436 authPanel.moveFocusToDefaultField();
|
|
|
437 String pw = authPanel.getPassword();
|
|
|
438 vncContainer.remove(authPanel);
|
|
0
|
439
|
|
4
|
440 return pw;
|
|
|
441 }
|
|
0
|
442
|
|
4
|
443 //
|
|
|
444 // Do the rest of the protocol initialisation.
|
|
|
445 //
|
|
0
|
446
|
|
4
|
447 void doProtocolInitialisation() throws IOException {
|
|
|
448 rfb.writeClientInit();
|
|
|
449 rfb.readServerInit();
|
|
|
450
|
|
|
451 System.out.println("Desktop name is " + rfb.desktopName);
|
|
|
452 System.out.println("Desktop size is " + rfb.framebufferWidth + " x "
|
|
|
453 + rfb.framebufferHeight);
|
|
0
|
454
|
|
4
|
455 setEncodings();
|
|
|
456
|
|
|
457 showConnectionStatus(null);
|
|
|
458 }
|
|
0
|
459
|
|
4
|
460 //
|
|
|
461 // Send current encoding list to the RFB server.
|
|
|
462 //
|
|
0
|
463
|
|
4
|
464 int[] encodingsSaved;
|
|
|
465 int nEncodingsSaved;
|
|
0
|
466
|
|
4
|
467 void setEncodings() {
|
|
|
468 setEncodings(false);
|
|
|
469 }
|
|
0
|
470
|
|
4
|
471 void autoSelectEncodings() {
|
|
|
472 setEncodings(true);
|
|
|
473 }
|
|
0
|
474
|
|
4
|
475 void setEncodings(boolean autoSelectOnly) {
|
|
|
476 if (options == null || rfb == null || !rfb.inNormalProtocol)
|
|
|
477 return;
|
|
0
|
478
|
|
4
|
479 int preferredEncoding = options.preferredEncoding;
|
|
|
480 if (preferredEncoding == -1) {
|
|
|
481 long kbitsPerSecond = rfb.kbitsPerSecond();
|
|
|
482 if (nEncodingsSaved < 1) {
|
|
|
483 // Choose Tight or ZRLE encoding for the very first update.
|
|
|
484 System.out.println("Using Tight/ZRLE encodings");
|
|
|
485 preferredEncoding = RfbProto.EncodingTight;
|
|
|
486 } else if (kbitsPerSecond > 2000
|
|
|
487 && encodingsSaved[0] != RfbProto.EncodingHextile) {
|
|
|
488 // Switch to Hextile if the connection speed is above 2Mbps.
|
|
|
489 System.out.println("Throughput " + kbitsPerSecond
|
|
|
490 + " kbit/s - changing to Hextile encoding");
|
|
|
491 preferredEncoding = RfbProto.EncodingHextile;
|
|
|
492 } else if (kbitsPerSecond < 1000
|
|
|
493 && encodingsSaved[0] != RfbProto.EncodingTight) {
|
|
|
494 // Switch to Tight/ZRLE if the connection speed is below 1Mbps.
|
|
|
495 System.out.println("Throughput " + kbitsPerSecond
|
|
|
496 + " kbit/s - changing to Tight/ZRLE encodings");
|
|
|
497 preferredEncoding = RfbProto.EncodingTight;
|
|
|
498 } else {
|
|
|
499 // Don't change the encoder.
|
|
|
500 if (autoSelectOnly)
|
|
|
501 return;
|
|
|
502 preferredEncoding = encodingsSaved[0];
|
|
|
503 }
|
|
|
504 } else {
|
|
|
505 // Auto encoder selection is not enabled.
|
|
|
506 if (autoSelectOnly)
|
|
|
507 return;
|
|
|
508 }
|
|
0
|
509
|
|
4
|
510 int[] encodings = new int[20];
|
|
|
511 int nEncodings = 0;
|
|
0
|
512
|
|
4
|
513 encodings[nEncodings++] = preferredEncoding;
|
|
|
514 if (options.useCopyRect) {
|
|
|
515 encodings[nEncodings++] = RfbProto.EncodingCopyRect;
|
|
|
516 }
|
|
0
|
517
|
|
4
|
518 if (preferredEncoding != RfbProto.EncodingTight) {
|
|
|
519 encodings[nEncodings++] = RfbProto.EncodingTight;
|
|
|
520 }
|
|
|
521 if (preferredEncoding != RfbProto.EncodingZRLE) {
|
|
|
522 encodings[nEncodings++] = RfbProto.EncodingZRLE;
|
|
|
523 }
|
|
|
524 if (preferredEncoding != RfbProto.EncodingHextile) {
|
|
|
525 encodings[nEncodings++] = RfbProto.EncodingHextile;
|
|
|
526 }
|
|
|
527 if (preferredEncoding != RfbProto.EncodingZlib) {
|
|
|
528 encodings[nEncodings++] = RfbProto.EncodingZlib;
|
|
|
529 }
|
|
|
530 if (preferredEncoding != RfbProto.EncodingCoRRE) {
|
|
|
531 encodings[nEncodings++] = RfbProto.EncodingCoRRE;
|
|
|
532 }
|
|
|
533 if (preferredEncoding != RfbProto.EncodingRRE) {
|
|
|
534 encodings[nEncodings++] = RfbProto.EncodingRRE;
|
|
|
535 }
|
|
0
|
536
|
|
4
|
537 if (options.compressLevel >= 0 && options.compressLevel <= 9) {
|
|
|
538 encodings[nEncodings++] = RfbProto.EncodingCompressLevel0
|
|
|
539 + options.compressLevel;
|
|
|
540 }
|
|
|
541 if (options.jpegQuality >= 0 && options.jpegQuality <= 9) {
|
|
|
542 encodings[nEncodings++] = RfbProto.EncodingQualityLevel0
|
|
|
543 + options.jpegQuality;
|
|
|
544 }
|
|
0
|
545
|
|
4
|
546 if (options.requestCursorUpdates) {
|
|
|
547 encodings[nEncodings++] = RfbProto.EncodingXCursor;
|
|
|
548 encodings[nEncodings++] = RfbProto.EncodingRichCursor;
|
|
|
549 if (!options.ignoreCursorUpdates)
|
|
|
550 encodings[nEncodings++] = RfbProto.EncodingPointerPos;
|
|
|
551 }
|
|
0
|
552
|
|
4
|
553 encodings[nEncodings++] = RfbProto.EncodingLastRect;
|
|
|
554 encodings[nEncodings++] = RfbProto.EncodingNewFBSize;
|
|
0
|
555
|
|
4
|
556 boolean encodingsWereChanged = false;
|
|
|
557 if (nEncodings != nEncodingsSaved) {
|
|
|
558 encodingsWereChanged = true;
|
|
|
559 } else {
|
|
|
560 for (int i = 0; i < nEncodings; i++) {
|
|
|
561 if (encodings[i] != encodingsSaved[i]) {
|
|
|
562 encodingsWereChanged = true;
|
|
|
563 break;
|
|
|
564 }
|
|
|
565 }
|
|
|
566 }
|
|
0
|
567
|
|
4
|
568 if (encodingsWereChanged) {
|
|
|
569 try {
|
|
|
570 rfb.writeSetEncodings(encodings, nEncodings);
|
|
|
571 if (vc != null) {
|
|
|
572 vc.softCursorFree();
|
|
|
573 }
|
|
|
574 } catch (Exception e) {
|
|
|
575 e.printStackTrace();
|
|
|
576 }
|
|
|
577 encodingsSaved = encodings;
|
|
|
578 nEncodingsSaved = nEncodings;
|
|
|
579 }
|
|
|
580 }
|
|
0
|
581
|
|
4
|
582 //
|
|
|
583 // setCutText() - send the given cut text to the RFB server.
|
|
|
584 //
|
|
0
|
585
|
|
4
|
586 void setCutText(String text) {
|
|
|
587 try {
|
|
|
588 if (rfb != null && rfb.inNormalProtocol) {
|
|
|
589 rfb.writeClientCutText(text);
|
|
|
590 }
|
|
|
591 } catch (Exception e) {
|
|
|
592 e.printStackTrace();
|
|
|
593 }
|
|
|
594 }
|
|
0
|
595
|
|
4
|
596 //
|
|
|
597 // Order change in session recording status. To stop recording, pass
|
|
|
598 // null in place of the fname argument.
|
|
|
599 //
|
|
0
|
600
|
|
4
|
601 void setRecordingStatus(String fname) {
|
|
|
602 synchronized (recordingSync) {
|
|
|
603 sessionFileName = fname;
|
|
|
604 recordingStatusChanged = true;
|
|
|
605 }
|
|
|
606 }
|
|
0
|
607
|
|
4
|
608 //
|
|
|
609 // Start or stop session recording. Returns true if this method call
|
|
|
610 // causes recording of a new session.
|
|
|
611 //
|
|
0
|
612
|
|
4
|
613 boolean checkRecordingStatus() throws IOException {
|
|
|
614 synchronized (recordingSync) {
|
|
|
615 if (recordingStatusChanged) {
|
|
|
616 recordingStatusChanged = false;
|
|
|
617 if (sessionFileName != null) {
|
|
|
618 startRecording();
|
|
|
619 return true;
|
|
|
620 } else {
|
|
|
621 stopRecording();
|
|
|
622 }
|
|
|
623 }
|
|
|
624 }
|
|
|
625 return false;
|
|
0
|
626 }
|
|
|
627
|
|
4
|
628 //
|
|
|
629 // Start session recording.
|
|
|
630 //
|
|
0
|
631
|
|
4
|
632 protected void startRecording() throws IOException {
|
|
|
633 synchronized (recordingSync) {
|
|
|
634 if (!recordingActive) {
|
|
|
635 // Save settings to restore them after recording the session.
|
|
|
636 cursorUpdatesDef = options.choices[options.cursorUpdatesIndex]
|
|
|
637 .getSelectedItem();
|
|
|
638 eightBitColorsDef = options.choices[options.eightBitColorsIndex]
|
|
|
639 .getSelectedItem();
|
|
|
640 // Set options to values suitable for recording.
|
|
|
641 options.choices[options.cursorUpdatesIndex].select("Disable");
|
|
|
642 options.choices[options.cursorUpdatesIndex].setEnabled(false);
|
|
|
643 options.setEncodings();
|
|
|
644 options.choices[options.eightBitColorsIndex].select("No");
|
|
|
645 options.choices[options.eightBitColorsIndex].setEnabled(false);
|
|
|
646 options.setColorFormat();
|
|
|
647 } else {
|
|
|
648 rfb.closeSession();
|
|
|
649 }
|
|
0
|
650
|
|
4
|
651 System.out.println("Recording the session in " + sessionFileName);
|
|
|
652 rfb.startSession(sessionFileName);
|
|
|
653 recordingActive = true;
|
|
|
654 }
|
|
|
655 }
|
|
0
|
656
|
|
4
|
657 //
|
|
|
658 // Stop session recording.
|
|
|
659 //
|
|
0
|
660
|
|
4
|
661 protected void stopRecording() throws IOException {
|
|
|
662 synchronized (recordingSync) {
|
|
|
663 if (recordingActive) {
|
|
|
664 // Restore options.
|
|
|
665 options.choices[options.cursorUpdatesIndex]
|
|
|
666 .select(cursorUpdatesDef);
|
|
|
667 options.choices[options.cursorUpdatesIndex].setEnabled(true);
|
|
|
668 options.setEncodings();
|
|
|
669 options.choices[options.eightBitColorsIndex]
|
|
|
670 .select(eightBitColorsDef);
|
|
|
671 options.choices[options.eightBitColorsIndex].setEnabled(true);
|
|
|
672 options.setColorFormat();
|
|
0
|
673
|
|
4
|
674 rfb.closeSession();
|
|
|
675 System.out.println("Session recording stopped.");
|
|
|
676 }
|
|
|
677 sessionFileName = null;
|
|
|
678 recordingActive = false;
|
|
|
679 }
|
|
|
680 }
|
|
0
|
681
|
|
4
|
682 //
|
|
|
683 // readParameters() - read parameters from the html source or from the
|
|
|
684 // command line. On the command line, the arguments are just a sequence of
|
|
|
685 // param_name/param_value pairs where the names and values correspond to
|
|
|
686 // those expected in the html applet tag source.
|
|
|
687 //
|
|
0
|
688
|
|
4
|
689 void readParameters() {
|
|
|
690 // host = readParameter("HOST", !inAnApplet);
|
|
|
691 if (mainArgs.length > 0)
|
|
|
692 host = mainArgs[0];
|
|
|
693 else
|
|
|
694 host = "hades.cr.ie.u-ryukyu.ac.jp";
|
|
|
695 /*
|
|
|
696 * if (host == null) { host = getCodeBase().getHost(); if
|
|
|
697 * (host.equals("")) { fatalError("HOST parameter not specified"); } }
|
|
|
698 */
|
|
0
|
699
|
|
4
|
700 // port = readIntParameter("PORT", 5900);
|
|
|
701 if (mainArgs.length > 1)
|
|
|
702 port = Integer.parseInt(mainArgs[1]);
|
|
|
703 else
|
|
|
704 port = 5900;
|
|
|
705 // Read "ENCPASSWORD" or "PASSWORD" parameter if specified.
|
|
|
706 readPasswordParameters();
|
|
0
|
707
|
|
4
|
708 String str;
|
|
|
709 if (inAnApplet) {
|
|
|
710 str = readParameter("Open New Window", false);
|
|
|
711 if (str != null && str.equalsIgnoreCase("Yes"))
|
|
|
712 inSeparateFrame = true;
|
|
|
713 }
|
|
0
|
714
|
|
4
|
715 // "Show Controls" set to "No" disables button panel.
|
|
|
716 showControls = true;
|
|
|
717 str = readParameter("Show Controls", false);
|
|
|
718 if (str != null && str.equalsIgnoreCase("No"))
|
|
|
719 showControls = false;
|
|
0
|
720
|
|
4
|
721 // "Offer Relogin" set to "No" disables "Login again" and "Close
|
|
|
722 // window" buttons under error messages in applet mode.
|
|
|
723 offerRelogin = true;
|
|
|
724 str = readParameter("Offer Relogin", false);
|
|
|
725 if (str != null && str.equalsIgnoreCase("No"))
|
|
|
726 offerRelogin = false;
|
|
0
|
727
|
|
4
|
728 // Do we continue showing desktop on remote disconnect?
|
|
|
729 showOfflineDesktop = false;
|
|
|
730 str = readParameter("Show Offline Desktop", false);
|
|
|
731 if (str != null && str.equalsIgnoreCase("Yes"))
|
|
|
732 showOfflineDesktop = true;
|
|
0
|
733
|
|
4
|
734 // Fine tuning options.
|
|
|
735 deferScreenUpdates = readIntParameter("Defer screen updates", 20);
|
|
|
736 deferCursorUpdates = readIntParameter("Defer cursor updates", 10);
|
|
|
737 deferUpdateRequests = readIntParameter("Defer update requests", 0);
|
|
0
|
738
|
|
4
|
739 // Debugging options.
|
|
|
740 debugStatsExcludeUpdates = readIntParameter("DEBUG_XU", 0);
|
|
|
741 debugStatsMeasureUpdates = readIntParameter("DEBUG_CU", 0);
|
|
0
|
742
|
|
4
|
743 // SocketFactory.
|
|
|
744 socketFactory = readParameter("SocketFactory", false);
|
|
|
745 }
|
|
0
|
746
|
|
4
|
747 //
|
|
|
748 // Read password parameters. If an "ENCPASSWORD" parameter is set,
|
|
|
749 // then decrypt the password into the passwordParam string. Otherwise,
|
|
|
750 // try to read the "PASSWORD" parameter directly to passwordParam.
|
|
|
751 //
|
|
0
|
752
|
|
4
|
753 private void readPasswordParameters() {
|
|
|
754 String encPasswordParam = readParameter("ENCPASSWORD", false);
|
|
|
755 if (encPasswordParam == null) {
|
|
|
756 passwordParam = readParameter("PASSWORD", false);
|
|
0
|
757
|
|
4
|
758 } else {
|
|
|
759 // ENCPASSWORD is hexascii-encoded. Decode.
|
|
|
760 byte[] pw = { 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
|
761 int len = encPasswordParam.length() / 2;
|
|
|
762 if (len > 8)
|
|
|
763 len = 8;
|
|
|
764 for (int i = 0; i < len; i++) {
|
|
|
765 String hex = encPasswordParam.substring(i * 2, i * 2 + 2);
|
|
|
766 Integer x = new Integer(Integer.parseInt(hex, 16));
|
|
|
767 pw[i] = x.byteValue();
|
|
|
768 }
|
|
|
769 // Decrypt the password.
|
|
|
770 byte[] key = { 23, 82, 107, 6, 35, 78, 88, 7 };
|
|
|
771 DesCipher des = new DesCipher(key);
|
|
|
772 des.decrypt(pw, 0, pw, 0);
|
|
|
773 passwordParam = new String(pw);
|
|
0
|
774
|
|
4
|
775 }
|
|
|
776 }
|
|
0
|
777
|
|
4
|
778 public String readParameter(String name, boolean required) {
|
|
|
779 if (inAnApplet) {
|
|
|
780 String s = getParameter(name);
|
|
|
781 if ((s == null) && required) {
|
|
|
782 fatalError(name + " parameter not specified");
|
|
|
783 }
|
|
|
784 return s;
|
|
|
785 }
|
|
0
|
786
|
|
4
|
787 for (int i = 0; i < mainArgs.length; i += 2) {
|
|
|
788 if (mainArgs[i].equalsIgnoreCase(name)) {
|
|
|
789 try {
|
|
|
790 return mainArgs[i + 1];
|
|
|
791 } catch (Exception e) {
|
|
|
792 if (required) {
|
|
|
793 fatalError(name + " parameter not specified");
|
|
|
794 }
|
|
|
795 return null;
|
|
|
796 }
|
|
|
797 }
|
|
|
798 }
|
|
|
799 if (required) {
|
|
|
800 fatalError(name + " parameter not specified");
|
|
|
801 }
|
|
|
802 return null;
|
|
0
|
803 }
|
|
|
804
|
|
4
|
805 int readIntParameter(String name, int defaultValue) {
|
|
|
806 String str = readParameter(name, false);
|
|
|
807 int result = defaultValue;
|
|
|
808 if (str != null) {
|
|
|
809 try {
|
|
|
810 result = Integer.parseInt(str);
|
|
|
811 } catch (NumberFormatException e) {
|
|
|
812 }
|
|
|
813 }
|
|
|
814 return result;
|
|
|
815 }
|
|
0
|
816
|
|
4
|
817 //
|
|
|
818 // moveFocusToDesktop() - move keyboard focus either to VncCanvas.
|
|
|
819 //
|
|
0
|
820
|
|
4
|
821 void moveFocusToDesktop() {
|
|
|
822 if (vncContainer != null) {
|
|
|
823 if (vc != null && vncContainer.isAncestorOf(vc))
|
|
|
824 vc.requestFocus();
|
|
|
825 }
|
|
|
826 }
|
|
|
827
|
|
|
828 //
|
|
|
829 // disconnect() - close connection to server.
|
|
|
830 //
|
|
|
831
|
|
|
832 synchronized public void disconnect() {
|
|
|
833 System.out.println("Disconnecting");
|
|
0
|
834
|
|
4
|
835 if (vc != null) {
|
|
|
836 double sec = (System.currentTimeMillis() - vc.statStartTime) / 1000.0;
|
|
|
837 double rate = Math.round(vc.statNumUpdates / sec * 100) / 100.0;
|
|
|
838 int nRealRects = vc.statNumPixelRects;
|
|
|
839 int nPseudoRects = vc.statNumTotalRects - vc.statNumPixelRects;
|
|
|
840 System.out.println("Updates received: " + vc.statNumUpdates + " ("
|
|
|
841 + nRealRects + " rectangles + " + nPseudoRects
|
|
|
842 + " pseudo), " + rate + " updates/sec");
|
|
|
843 int numRectsOther = nRealRects - vc.statNumRectsTight
|
|
|
844 - vc.statNumRectsZRLE - vc.statNumRectsHextile
|
|
|
845 - vc.statNumRectsRaw - vc.statNumRectsCopy;
|
|
|
846 System.out.println("Rectangles:" + " Tight=" + vc.statNumRectsTight
|
|
|
847 + "(JPEG=" + vc.statNumRectsTightJPEG + ") ZRLE="
|
|
|
848 + vc.statNumRectsZRLE + " Hextile="
|
|
|
849 + vc.statNumRectsHextile + " Raw=" + vc.statNumRectsRaw
|
|
|
850 + " CopyRect=" + vc.statNumRectsCopy + " other="
|
|
|
851 + numRectsOther);
|
|
0
|
852
|
|
4
|
853 int raw = vc.statNumBytesDecoded;
|
|
|
854 int compressed = vc.statNumBytesEncoded;
|
|
|
855 if (compressed > 0) {
|
|
|
856 double ratio = Math.round((double) raw / compressed * 1000) / 1000.0;
|
|
|
857 System.out.println("Pixel data: " + vc.statNumBytesDecoded
|
|
|
858 + " bytes, " + vc.statNumBytesEncoded
|
|
|
859 + " compressed, ratio " + ratio);
|
|
|
860 }
|
|
|
861 }
|
|
0
|
862
|
|
4
|
863 if (rfb != null && !rfb.closed())
|
|
|
864 rfb.close();
|
|
|
865 options.dispose();
|
|
|
866 clipboard.dispose();
|
|
|
867 if (rec != null)
|
|
|
868 rec.dispose();
|
|
0
|
869
|
|
4
|
870 if (inAnApplet) {
|
|
|
871 showMessage("Disconnected");
|
|
|
872 } else {
|
|
|
873 System.exit(0);
|
|
|
874 }
|
|
|
875 }
|
|
0
|
876
|
|
4
|
877 //
|
|
|
878 // fatalError() - print out a fatal error message.
|
|
|
879 // FIXME: Do we really need two versions of the fatalError() method?
|
|
|
880 //
|
|
0
|
881
|
|
4
|
882 synchronized public void fatalError(String str) {
|
|
|
883 System.out.println(str);
|
|
0
|
884
|
|
4
|
885 if (inAnApplet) {
|
|
|
886 // vncContainer null, applet not inited,
|
|
|
887 // can not present the error to the user.
|
|
|
888 Thread.currentThread().stop();
|
|
|
889 } else {
|
|
|
890 System.exit(1);
|
|
|
891 }
|
|
|
892 }
|
|
|
893
|
|
|
894 synchronized public void fatalError(String str, Exception e) {
|
|
0
|
895
|
|
4
|
896 if (rfb != null && rfb.closed()) {
|
|
|
897 // Not necessary to show error message if the error was caused
|
|
|
898 // by I/O problems after the rfb.close() method call.
|
|
|
899 System.out.println("RFB thread finished");
|
|
|
900 return;
|
|
|
901 }
|
|
|
902
|
|
|
903 System.out.println(str);
|
|
|
904 e.printStackTrace();
|
|
0
|
905
|
|
4
|
906 if (rfb != null)
|
|
|
907 rfb.close();
|
|
0
|
908
|
|
4
|
909 if (inAnApplet) {
|
|
|
910 showMessage(str);
|
|
|
911 } else {
|
|
|
912 System.exit(1);
|
|
|
913 }
|
|
|
914 }
|
|
0
|
915
|
|
4
|
916 //
|
|
|
917 // Show message text and optionally "Relogin" and "Close" buttons.
|
|
|
918 //
|
|
0
|
919
|
|
4
|
920 void showMessage(String msg) {
|
|
|
921 vncContainer.removeAll();
|
|
0
|
922
|
|
4
|
923 Label errLabel = new Label(msg, Label.CENTER);
|
|
|
924 errLabel.setFont(new Font("Helvetica", Font.PLAIN, 12));
|
|
0
|
925
|
|
4
|
926 if (offerRelogin) {
|
|
0
|
927
|
|
4
|
928 Panel gridPanel = new Panel(new GridLayout(0, 1));
|
|
|
929 Panel outerPanel = new Panel(new FlowLayout(FlowLayout.LEFT));
|
|
|
930 outerPanel.add(gridPanel);
|
|
|
931 vncContainer.setLayout(new FlowLayout(FlowLayout.LEFT, 30, 16));
|
|
|
932 vncContainer.add(outerPanel);
|
|
|
933 Panel textPanel = new Panel(new FlowLayout(FlowLayout.CENTER));
|
|
|
934 textPanel.add(errLabel);
|
|
|
935 gridPanel.add(textPanel);
|
|
|
936 gridPanel.add(new ReloginPanel(this));
|
|
|
937
|
|
|
938 } else {
|
|
0
|
939
|
|
4
|
940 vncContainer.setLayout(new FlowLayout(FlowLayout.LEFT, 30, 30));
|
|
|
941 vncContainer.add(errLabel);
|
|
|
942
|
|
|
943 }
|
|
0
|
944
|
|
4
|
945 if (inSeparateFrame) {
|
|
|
946 vncFrame.pack();
|
|
|
947 } else {
|
|
|
948 validate();
|
|
|
949 }
|
|
|
950 }
|
|
0
|
951
|
|
4
|
952 //
|
|
|
953 // Stop the applet.
|
|
|
954 // Main applet thread will terminate on first exception
|
|
|
955 // after seeing that rfbThread has been set to null.
|
|
|
956 //
|
|
0
|
957
|
|
4
|
958 public void stop() {
|
|
|
959 System.out.println("Stopping applet");
|
|
|
960 rfbThread = null;
|
|
|
961 }
|
|
0
|
962
|
|
4
|
963 //
|
|
|
964 // This method is called before the applet is destroyed.
|
|
|
965 //
|
|
|
966
|
|
|
967 public void destroy() {
|
|
|
968 System.out.println("Destroying applet");
|
|
0
|
969
|
|
4
|
970 vncContainer.removeAll();
|
|
|
971 options.dispose();
|
|
|
972 clipboard.dispose();
|
|
|
973 if (rec != null)
|
|
|
974 rec.dispose();
|
|
|
975 if (rfb != null && !rfb.closed())
|
|
|
976 rfb.close();
|
|
|
977 if (inSeparateFrame)
|
|
|
978 vncFrame.dispose();
|
|
|
979 }
|
|
0
|
980
|
|
4
|
981 //
|
|
|
982 // Start/stop receiving mouse events.
|
|
|
983 //
|
|
|
984
|
|
|
985 public void enableInput(boolean enable) {
|
|
|
986 vc.enableInput(enable);
|
|
|
987 }
|
|
0
|
988
|
|
4
|
989 //
|
|
|
990 // Close application properly on window close event.
|
|
|
991 //
|
|
0
|
992
|
|
4
|
993 public void windowClosing(WindowEvent evt) {
|
|
|
994 System.out.println("Closing window");
|
|
|
995 if (rfb != null)
|
|
|
996 disconnect();
|
|
0
|
997
|
|
4
|
998 vncContainer.hide();
|
|
|
999
|
|
|
1000 if (!inAnApplet) {
|
|
|
1001 System.exit(0);
|
|
|
1002 }
|
|
|
1003 }
|
|
0
|
1004
|
|
4
|
1005 //
|
|
|
1006 // Ignore window events we're not interested in.
|
|
|
1007 //
|
|
0
|
1008
|
|
4
|
1009 public void windowActivated(WindowEvent evt) {
|
|
|
1010 }
|
|
|
1011
|
|
|
1012 public void windowDeactivated(WindowEvent evt) {
|
|
|
1013 }
|
|
0
|
1014
|
|
4
|
1015 public void windowOpened(WindowEvent evt) {
|
|
|
1016 }
|
|
|
1017
|
|
|
1018 public void windowClosed(WindowEvent evt) {
|
|
|
1019 }
|
|
0
|
1020
|
|
4
|
1021 public void windowIconified(WindowEvent evt) {
|
|
|
1022 }
|
|
|
1023
|
|
|
1024 public void windowDeiconified(WindowEvent evt) {
|
|
|
1025 }
|
|
0
|
1026 }
|
