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24
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1 package myVncProxy;
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13
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2 import java.awt.*;
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3 import java.awt.event.*;
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4 import java.io.*;
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5 import java.net.*;
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6
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7 public class VncProxyService implements java.lang.Runnable {
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8
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9 public static void main(String[] argv) {
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10 VncProxyService v = new VncProxyService();
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30
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11
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12 v.checkArgs(argv);
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13
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13
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14 v.mainArgs = argv;
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15
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16 v.init();
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30
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17
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13
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18 }
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15
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19
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20 String[] mainArgs;
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31
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21 String username;
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22
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23 CreateHtmlFile htmlFile;
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24
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25 // RfbProto rfb;
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26 MyRfbProto rfb;
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27 Thread rfbThread;
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27
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28 Thread accThread;
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29
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30 Frame vncFrame;
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31 Container vncContainer;
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32 ScrollPane desktopScrollPane;
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33 GridBagLayout gridbag;
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34 ButtonPanel buttonPanel;
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35 Label connStatusLabel;
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36 ProxyVncCanvas vc;
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37 OptionsFrame options;
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38 ClipboardFrame clipboard;
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39 RecordingFrame rec;
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40
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41 // Control session recording.
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42 Object recordingSync;
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43 String sessionFileName;
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44 boolean recordingActive;
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45 boolean recordingStatusChanged;
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46 String cursorUpdatesDef;
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47 String eightBitColorsDef;
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48
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49 // Variables read from parameter values.
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50 String socketFactory;
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51 String host;
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52 int port;
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53 String passwordParam;
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54 boolean showControls;
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55 boolean offerRelogin;
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56 boolean showOfflineDesktop;
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57 int deferScreenUpdates;
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58 int deferCursorUpdates;
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59 int deferUpdateRequests;
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60 int debugStatsExcludeUpdates;
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61 int debugStatsMeasureUpdates;
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62
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30
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63
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64 void checkArgs(String[] argv){
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31
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65 if(argv.length > 3){
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66 username = argv[3];
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67 }else if(argv.length < 2){
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68 System.out.println("Please enter argv");
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69 System.out.println("hostname(IPaddress) port password");
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70 System.exit(0);
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31
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71 }else{
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72 username = argv[0];
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30
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73 }
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74 }
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75
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76 //
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77 // init()
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78 //
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79
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80 public void init() {
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81
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82 readParameters();
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83
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84 recordingSync = new Object();
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85
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86 sessionFileName = null;
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87 recordingActive = false;
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88 recordingStatusChanged = false;
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89 cursorUpdatesDef = null;
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90 eightBitColorsDef = null;
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91
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25
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92 try{
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93 connectAndAuthenticate();
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94 }catch (NoRouteToHostException e) {
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95 fatalError("Network error: no route to server: " + host, e);
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96 } catch (UnknownHostException e) {
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97 fatalError("Network error: server name unknown: " + host, e);
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98 } catch (ConnectException e) {
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99 fatalError("Network error: could not connect to server: " + host
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100 + ":" + port, e);
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101 }catch(Exception e){}
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102
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103 rfbThread = new Thread(this);
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104 rfbThread.start();
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105 accThread = new Thread(new acceptThread(rfb));
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106 accThread.start();
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20
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107
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108
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109 }
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110
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111 //
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112 // run() - executed by the rfbThread to deal with the RFB socket.
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113 //
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114
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115 public void run() {
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116
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117 try {
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25
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118 // connectAndAuthenticate();
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119 doProtocolInitialisation();
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31
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120
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121 htmlFile = new CreateHtmlFile(rfb, host, username);
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122 htmlFile.createHtml();
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123
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124 vc = new ProxyVncCanvas(this, 0, 0);
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125 vc.updateFramebufferSize();
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126
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127 processNormalProtocol();// main loop
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128
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129 } catch (NoRouteToHostException e) {
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130 fatalError("Network error: no route to server: " + host, e);
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131 } catch (UnknownHostException e) {
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132 fatalError("Network error: server name unknown: " + host, e);
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133 } catch (ConnectException e) {
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134 fatalError("Network error: could not connect to server: " + host
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135 + ":" + port, e);
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136 } catch (EOFException e) {
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137 if (showOfflineDesktop) {
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138 e.printStackTrace();
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139 System.out
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140 .println("Network error: remote side closed connection");
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141 if (vc != null) {
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142 vc.enableInput(false);
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143 }
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144 if (rfb != null && !rfb.closed())
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145 rfb.close();
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146 if (showControls && buttonPanel != null) {
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147 buttonPanel.disableButtonsOnDisconnect();
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148 }
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149 } else {
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150 fatalError("Network error: remote side closed connection", e);
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151 }
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152 } catch (IOException e) {
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153 String str = e.getMessage();
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154 if (str != null && str.length() != 0) {
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155 fatalError("Network Error: " + str, e);
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156 } else {
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157 fatalError(e.toString(), e);
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158 }
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26
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159 } catch (Exception e) {
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160 String str = e.getMessage();
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161 if (str != null && str.length() != 0) {
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162 fatalError("Error: " + str, e);
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163 } else {
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164 fatalError(e.toString(), e);
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165 }
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166 }
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167
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168 }
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169
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170 //
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171 // Process RFB socket messages.
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172 // If the rfbThread is being stopped, ignore any exceptions,
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173 // otherwise rethrow the exception so it can be handled.
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174 //
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175
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176 void processNormalProtocol() throws Exception {
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177 try {
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178 vc.processNormalProtocol();// main loop
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179 } catch (Exception e) {
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180 if (rfbThread == null) {
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181 System.out.println("Ignoring RFB socket exceptions"
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182 + " because applet is stopping");
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183 } else {
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184 throw e;
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185 }
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186 }
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187 }
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188
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189 //
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190 // Connect to the RFB server and authenticate the user.
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191 //
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192
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193 void connectAndAuthenticate() throws Exception {
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194 showConnectionStatus("Initializing...");
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195
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196 showConnectionStatus("Connecting to " + host + ", port " + port + "...");
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197
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198 // rfb = new RfbProto(host, port, this);
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199 rfb = new MyRfbProto(host, port);
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200 showConnectionStatus("Connected to server");
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201
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202 rfb.readVersionMsg();
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203 showConnectionStatus("RFB server supports protocol version "
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204 + rfb.serverMajor + "." + rfb.serverMinor);
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205
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206 rfb.writeVersionMsg();
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207 showConnectionStatus("Using RFB protocol version " + rfb.clientMajor
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208 + "." + rfb.clientMinor);
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209
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210 int secType = rfb.negotiateSecurity();
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211 int authType;
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212 if (secType == RfbProto.SecTypeTight) {
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213 showConnectionStatus("Enabling TightVNC protocol extensions");
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214 rfb.setupTunneling();
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215 authType = rfb.negotiateAuthenticationTight();
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216 } else {
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217 authType = secType;
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218 }
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219
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220 switch (authType) {
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221 case RfbProto.AuthNone:
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222 showConnectionStatus("No authentication needed");
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223 rfb.authenticateNone();
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224 break;
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225 case RfbProto.AuthVNC:
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226 showConnectionStatus("Performing standard VNC authentication");
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227 if (passwordParam != null) {
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228 rfb.authenticateVNC(passwordParam);
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229 } else {
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230 String pw = askPassword();
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231 rfb.authenticateVNC(pw);
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232 }
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233 break;
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234 default:
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235 throw new Exception("Unknown authentication scheme " + authType);
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236 }
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237 }
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238
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239 //
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240 // Show a message describing the connection status.
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241 // To hide the connection status label, use (msg == null).
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242 //
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243
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244 void showConnectionStatus(String msg) {
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245 System.out.println(msg);
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246 }
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247
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248 //
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249 // Show an authentication panel.
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250 //
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251
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252 String askPassword() throws Exception {
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253 /*
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254 * showConnectionStatus(null);
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255 * AuthPanel authPanel = new AuthPanel(this);
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256 *
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257 * GridBagConstraints gbc = new GridBagConstraints(); gbc.gridwidth =
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258 * GridBagConstraints.REMAINDER; gbc.anchor =
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259 * GridBagConstraints.NORTHWEST; gbc.weightx = 1.0; gbc.weighty = 1.0;
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260 * gbc.ipadx = 100; gbc.ipady = 50; gridbag.setConstraints(authPanel,
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261 * gbc); vncContainer.add(authPanel);
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262
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263
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264 authPanel.moveFocusToDefaultField();
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265 vncContainer.remove(authPanel);
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266 */
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267 showConnectionStatus("ask password...");
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268 String pw = mainArgs[2];
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269 return pw;
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270 }
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271
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272 //
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273 // Do the rest of the protocol initialisation.
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274 //
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275
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276 void doProtocolInitialisation() throws IOException {
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277 rfb.writeClientInit();
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278 rfb.readServerInit();
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279
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280
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281 System.out.println("Desktop name is " + rfb.desktopName);
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282 System.out.println("Desktop size is " + rfb.framebufferWidth + " x "
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283 + rfb.framebufferHeight);
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284
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285 setEncodings();
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286
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287 //showConnectionStatus(null);
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288 }
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289
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290 //
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291 // Send current encoding list to the RFB server.
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292 //
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293
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294 int[] encodingsSaved;
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295 int nEncodingsSaved;
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296
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297 void setEncodings() {
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298 setEncodings(false);
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299 }
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300
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301 void autoSelectEncodings() {
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302 setEncodings(true);
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303 }
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304
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305 void setEncodings(boolean autoSelectOnly) {
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306 if (options == null || rfb == null || !rfb.inNormalProtocol)
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307 return;
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308
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309 int preferredEncoding = options.preferredEncoding;
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310 if (preferredEncoding == -1) {
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311 long kbitsPerSecond = rfb.kbitsPerSecond();
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312 if (nEncodingsSaved < 1) {
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313 // Choose Tight or ZRLE encoding for the very first update.
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314 System.out.println("Using Tight/ZRLE encodings");
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315 preferredEncoding = RfbProto.EncodingTight;
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316 } else if (kbitsPerSecond > 2000
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317 && encodingsSaved[0] != RfbProto.EncodingHextile) {
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318 // Switch to Hextile if the connection speed is above 2Mbps.
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319 System.out.println("Throughput " + kbitsPerSecond
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320 + " kbit/s - changing to Hextile encoding");
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321 preferredEncoding = RfbProto.EncodingHextile;
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322 } else if (kbitsPerSecond < 1000
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323 && encodingsSaved[0] != RfbProto.EncodingTight) {
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324 // Switch to Tight/ZRLE if the connection speed is below 1Mbps.
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325 System.out.println("Throughput " + kbitsPerSecond
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326 + " kbit/s - changing to Tight/ZRLE encodings");
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327 preferredEncoding = RfbProto.EncodingTight;
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328 } else {
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329 // Don't change the encoder.
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330 if (autoSelectOnly)
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331 return;
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332 preferredEncoding = encodingsSaved[0];
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333 }
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334 } else {
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335 // Auto encoder selection is not enabled.
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336 if (autoSelectOnly)
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337 return;
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338 }
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339
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340 int[] encodings = new int[20];
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341 int nEncodings = 0;
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342
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343 encodings[nEncodings++] = preferredEncoding;
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344 if (options.useCopyRect) {
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345 encodings[nEncodings++] = RfbProto.EncodingCopyRect;
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346 }
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347
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348 if (preferredEncoding != RfbProto.EncodingTight) {
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349 encodings[nEncodings++] = RfbProto.EncodingTight;
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350 }
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351 if (preferredEncoding != RfbProto.EncodingZRLE) {
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352 encodings[nEncodings++] = RfbProto.EncodingZRLE;
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353 }
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354 if (preferredEncoding != RfbProto.EncodingHextile) {
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355 encodings[nEncodings++] = RfbProto.EncodingHextile;
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356 }
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357 if (preferredEncoding != RfbProto.EncodingZlib) {
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358 encodings[nEncodings++] = RfbProto.EncodingZlib;
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359 }
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360 if (preferredEncoding != RfbProto.EncodingCoRRE) {
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361 encodings[nEncodings++] = RfbProto.EncodingCoRRE;
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362 }
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363 if (preferredEncoding != RfbProto.EncodingRRE) {
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364 encodings[nEncodings++] = RfbProto.EncodingRRE;
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365 }
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366
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367 if (options.compressLevel >= 0 && options.compressLevel <= 9) {
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368 encodings[nEncodings++] = RfbProto.EncodingCompressLevel0
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369 + options.compressLevel;
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370 }
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371 if (options.jpegQuality >= 0 && options.jpegQuality <= 9) {
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372 encodings[nEncodings++] = RfbProto.EncodingQualityLevel0
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373 + options.jpegQuality;
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374 }
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375
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376 if (options.requestCursorUpdates) {
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377 encodings[nEncodings++] = RfbProto.EncodingXCursor;
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378 encodings[nEncodings++] = RfbProto.EncodingRichCursor;
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379 if (!options.ignoreCursorUpdates)
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380 encodings[nEncodings++] = RfbProto.EncodingPointerPos;
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381 }
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382
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383 encodings[nEncodings++] = RfbProto.EncodingLastRect;
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384 encodings[nEncodings++] = RfbProto.EncodingNewFBSize;
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385
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386 boolean encodingsWereChanged = false;
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387 if (nEncodings != nEncodingsSaved) {
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388 encodingsWereChanged = true;
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389 } else {
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390 for (int i = 0; i < nEncodings; i++) {
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391 if (encodings[i] != encodingsSaved[i]) {
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392 encodingsWereChanged = true;
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393 break;
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394 }
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395 }
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396 }
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397
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398 if (encodingsWereChanged) {
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399 try {
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400 rfb.writeSetEncodings(encodings, nEncodings);
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401 if (vc != null) {
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402 vc.softCursorFree();
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403 }
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404 } catch (Exception e) {
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405 e.printStackTrace();
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406 }
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407 encodingsSaved = encodings;
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408 nEncodingsSaved = nEncodings;
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409 }
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410 }
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411
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412 //
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413 // setCutText() - send the given cut text to the RFB server.
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414 //
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415
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416 void setCutText(String text) {
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417 try {
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418 if (rfb != null && rfb.inNormalProtocol) {
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419 rfb.writeClientCutText(text);
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420 }
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421 } catch (Exception e) {
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422 e.printStackTrace();
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423 }
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424 }
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425
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426 //
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427 // Order change in session recording status. To stop recording, pass
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428 // null in place of the fname argument.
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429 //
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430
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431 void setRecordingStatus(String fname) {
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432 synchronized (recordingSync) {
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433 sessionFileName = fname;
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434 recordingStatusChanged = true;
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435 }
|
|
|
436 }
|
|
|
437
|
|
|
438 //
|
|
|
439 // Start or stop session recording. Returns true if this method call
|
|
|
440 // causes recording of a new session.
|
|
|
441 //
|
|
|
442
|
|
|
443 boolean checkRecordingStatus() throws IOException {
|
|
|
444 synchronized (recordingSync) {
|
|
|
445 if (recordingStatusChanged) {
|
|
|
446 recordingStatusChanged = false;
|
|
|
447 if (sessionFileName != null) {
|
|
|
448 startRecording();
|
|
|
449 return true;
|
|
|
450 } else {
|
|
|
451 stopRecording();
|
|
|
452 }
|
|
|
453 }
|
|
|
454 }
|
|
|
455 return false;
|
|
|
456 }
|
|
|
457
|
|
|
458 //
|
|
|
459 // Start session recording.
|
|
|
460 //
|
|
|
461
|
|
|
462 protected void startRecording() throws IOException {
|
|
|
463 synchronized (recordingSync) {
|
|
|
464 if (!recordingActive) {
|
|
|
465 // Save settings to restore them after recording the session.
|
|
|
466 cursorUpdatesDef = options.choices[options.cursorUpdatesIndex]
|
|
|
467 .getSelectedItem();
|
|
|
468 eightBitColorsDef = options.choices[options.eightBitColorsIndex]
|
|
|
469 .getSelectedItem();
|
|
|
470 // Set options to values suitable for recording.
|
|
|
471 options.choices[options.cursorUpdatesIndex].select("Disable");
|
|
|
472 options.choices[options.cursorUpdatesIndex].setEnabled(false);
|
|
|
473 options.setEncodings();
|
|
|
474 options.choices[options.eightBitColorsIndex].select("No");
|
|
|
475 options.choices[options.eightBitColorsIndex].setEnabled(false);
|
|
|
476 options.setColorFormat();
|
|
|
477 } else {
|
|
|
478 rfb.closeSession();
|
|
|
479 }
|
|
|
480
|
|
|
481 System.out.println("Recording the session in " + sessionFileName);
|
|
|
482 rfb.startSession(sessionFileName);
|
|
|
483 recordingActive = true;
|
|
|
484 }
|
|
|
485 }
|
|
|
486
|
|
|
487 //
|
|
|
488 // Stop session recording.
|
|
|
489 //
|
|
|
490
|
|
|
491 protected void stopRecording() throws IOException {
|
|
|
492 synchronized (recordingSync) {
|
|
|
493 if (recordingActive) {
|
|
|
494 // Restore options.
|
|
|
495 options.choices[options.cursorUpdatesIndex]
|
|
|
496 .select(cursorUpdatesDef);
|
|
|
497 options.choices[options.cursorUpdatesIndex].setEnabled(true);
|
|
|
498 options.setEncodings();
|
|
|
499 options.choices[options.eightBitColorsIndex]
|
|
|
500 .select(eightBitColorsDef);
|
|
|
501 options.choices[options.eightBitColorsIndex].setEnabled(true);
|
|
|
502 options.setColorFormat();
|
|
|
503
|
|
|
504 rfb.closeSession();
|
|
|
505 System.out.println("Session recording stopped.");
|
|
|
506 }
|
|
|
507 sessionFileName = null;
|
|
|
508 recordingActive = false;
|
|
|
509 }
|
|
|
510 }
|
|
|
511
|
|
|
512 //
|
|
|
513 // readParameters() - read parameters from the html source or from the
|
|
|
514 // command line. On the command line, the arguments are just a sequence of
|
|
|
515 // param_name/param_value pairs where the names and values correspond to
|
|
|
516 // those expected in the html applet tag source.
|
|
|
517 //
|
|
|
518
|
|
|
519 void readParameters() {
|
|
|
520
|
|
30
|
521 host = mainArgs[0];
|
|
31
|
522 if(mainArgs.length < 2){
|
|
30
|
523 port = 5900;
|
|
|
524 }else{
|
|
31
|
525 port = Integer.parseInt(mainArgs[1]);
|
|
30
|
526 }
|
|
|
527
|
|
13
|
528
|
|
|
529 // Read "ENCPASSWORD" or "PASSWORD" parameter if specified.
|
|
|
530 // readPasswordParameters();
|
|
|
531
|
|
|
532 String str;
|
|
|
533
|
|
|
534 // "Show Controls" set to "No" disables button panel.
|
|
|
535 showControls = true;
|
|
|
536 str = readParameter("Show Controls", false);
|
|
|
537 if (str != null && str.equalsIgnoreCase("No"))
|
|
|
538 showControls = false;
|
|
|
539
|
|
|
540 // "Offer Relogin" set to "No" disables "Login again" and "Close
|
|
|
541 // window" buttons under error messages in applet mode.
|
|
|
542 offerRelogin = true;
|
|
|
543 str = readParameter("Offer Relogin", false);
|
|
|
544 if (str != null && str.equalsIgnoreCase("No"))
|
|
|
545 offerRelogin = false;
|
|
|
546
|
|
|
547 // Do we continue showing desktop on remote disconnect?
|
|
|
548 showOfflineDesktop = false;
|
|
|
549 str = readParameter("Show Offline Desktop", false);
|
|
|
550 if (str != null && str.equalsIgnoreCase("Yes"))
|
|
|
551 showOfflineDesktop = true;
|
|
|
552
|
|
|
553 // Fine tuning options.
|
|
|
554 deferScreenUpdates = readIntParameter("Defer screen updates", 20);
|
|
|
555 deferCursorUpdates = readIntParameter("Defer cursor updates", 10);
|
|
|
556 deferUpdateRequests = readIntParameter("Defer update requests", 0);
|
|
|
557
|
|
|
558 // Debugging options.
|
|
|
559 debugStatsExcludeUpdates = readIntParameter("DEBUG_XU", 0);
|
|
|
560 debugStatsMeasureUpdates = readIntParameter("DEBUG_CU", 0);
|
|
|
561
|
|
|
562 // SocketFactory.
|
|
|
563 socketFactory = readParameter("SocketFactory", false);
|
|
|
564 }
|
|
|
565
|
|
|
566 //
|
|
|
567 // Read password parameters. If an "ENCPASSWORD" parameter is set,
|
|
|
568 // then decrypt the password into the passwordParam string. Otherwise,
|
|
|
569 // try to read the "PASSWORD" parameter directly to passwordParam.
|
|
|
570 //
|
|
|
571
|
|
|
572 private void readPasswordParameters() {
|
|
|
573 // String encPasswordParam = readParameter("ENCPASSWORD", false);
|
|
31
|
574 String encPasswordParam = mainArgs[2];
|
|
13
|
575
|
|
|
576 if (encPasswordParam == null) {
|
|
|
577 // passwordParam = readParameter("PASSWORD", false);
|
|
|
578
|
|
|
579 } else {
|
|
|
580 // ENCPASSWORD is hexascii-encoded. Decode.
|
|
|
581 byte[] pw = { 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
|
582 int len = encPasswordParam.length() / 2;
|
|
|
583 if (len > 8)
|
|
|
584 len = 8;
|
|
|
585 for (int i = 0; i < len; i++) {
|
|
|
586 String hex = encPasswordParam.substring(i * 2, i * 2 + 2);
|
|
|
587 Integer x = new Integer(Integer.parseInt(hex, 16));
|
|
|
588 pw[i] = x.byteValue();
|
|
|
589 }
|
|
|
590 // Decrypt the password.
|
|
|
591 byte[] key = { 23, 82, 107, 6, 35, 78, 88, 7 };
|
|
|
592 DesCipher des = new DesCipher(key);
|
|
|
593 des.decrypt(pw, 0, pw, 0);
|
|
|
594 passwordParam = new String(pw);
|
|
|
595
|
|
|
596 }
|
|
|
597 }
|
|
|
598
|
|
|
599 public String readParameter(String name, boolean required) {
|
|
|
600 for (int i = 0; i < mainArgs.length; i += 2) {
|
|
|
601 if (mainArgs[i].equalsIgnoreCase(name)) {
|
|
|
602 try {
|
|
|
603 return mainArgs[i + 1];
|
|
|
604 } catch (Exception e) {
|
|
|
605 if (required) {
|
|
|
606 fatalError(name + " parameter not specified");
|
|
|
607 }
|
|
|
608 return null;
|
|
|
609 }
|
|
|
610 }
|
|
|
611 }
|
|
|
612 if (required) {
|
|
|
613 fatalError(name + " parameter not specified");
|
|
|
614 }
|
|
|
615 return null;
|
|
|
616 }
|
|
|
617
|
|
|
618 int readIntParameter(String name, int defaultValue) {
|
|
|
619 String str = readParameter(name, false);
|
|
|
620 int result = defaultValue;
|
|
|
621 if (str != null) {
|
|
|
622 try {
|
|
|
623 result = Integer.parseInt(str);
|
|
|
624 } catch (NumberFormatException e) {
|
|
|
625 }
|
|
|
626 }
|
|
|
627 return result;
|
|
|
628 }
|
|
|
629
|
|
|
630 //
|
|
|
631 // disconnect() - close connection to server.
|
|
|
632 //
|
|
|
633
|
|
|
634 synchronized public void disconnect() {
|
|
|
635 System.out.println("Disconnecting");
|
|
|
636
|
|
|
637 if (vc != null) {
|
|
|
638 double sec = (System.currentTimeMillis() - vc.statStartTime) / 1000.0;
|
|
|
639 double rate = Math.round(vc.statNumUpdates / sec * 100) / 100.0;
|
|
|
640 int nRealRects = vc.statNumPixelRects;
|
|
|
641 int nPseudoRects = vc.statNumTotalRects - vc.statNumPixelRects;
|
|
|
642 System.out.println("Updates received: " + vc.statNumUpdates + " ("
|
|
|
643 + nRealRects + " rectangles + " + nPseudoRects
|
|
|
644 + " pseudo), " + rate + " updates/sec");
|
|
|
645 int numRectsOther = nRealRects - vc.statNumRectsTight
|
|
|
646 - vc.statNumRectsZRLE - vc.statNumRectsHextile
|
|
|
647 - vc.statNumRectsRaw - vc.statNumRectsCopy;
|
|
|
648 System.out.println("Rectangles:" + " Tight=" + vc.statNumRectsTight
|
|
|
649 + "(JPEG=" + vc.statNumRectsTightJPEG + ") ZRLE="
|
|
|
650 + vc.statNumRectsZRLE + " Hextile="
|
|
|
651 + vc.statNumRectsHextile + " Raw=" + vc.statNumRectsRaw
|
|
|
652 + " CopyRect=" + vc.statNumRectsCopy + " other="
|
|
|
653 + numRectsOther);
|
|
|
654
|
|
|
655 int raw = vc.statNumBytesDecoded;
|
|
|
656 int compressed = vc.statNumBytesEncoded;
|
|
|
657 if (compressed > 0) {
|
|
|
658 double ratio = Math.round((double) raw / compressed * 1000) / 1000.0;
|
|
|
659 System.out.println("Pixel data: " + vc.statNumBytesDecoded
|
|
|
660 + " bytes, " + vc.statNumBytesEncoded
|
|
|
661 + " compressed, ratio " + ratio);
|
|
|
662 }
|
|
|
663 }
|
|
|
664
|
|
|
665 if (rfb != null && !rfb.closed())
|
|
|
666 rfb.close();
|
|
|
667 options.dispose();
|
|
|
668 clipboard.dispose();
|
|
|
669 if (rec != null)
|
|
|
670 rec.dispose();
|
|
|
671
|
|
|
672 System.exit(0);
|
|
|
673
|
|
|
674 }
|
|
|
675
|
|
|
676 //
|
|
|
677 // fatalError() - print out a fatal error message.
|
|
|
678 // FIXME: Do we really need two versions of the fatalError() method?
|
|
|
679 //
|
|
|
680
|
|
|
681 synchronized public void fatalError(String str) {
|
|
|
682 System.out.println(str);
|
|
|
683 System.exit(1);
|
|
|
684 }
|
|
|
685
|
|
|
686 synchronized public void fatalError(String str, Exception e) {
|
|
|
687
|
|
|
688 if (rfb != null && rfb.closed()) {
|
|
|
689 // Not necessary to show error message if the error was caused
|
|
|
690 // by I/O problems after the rfb.close() method call.
|
|
|
691 System.out.println("RFB thread finished");
|
|
|
692 return;
|
|
|
693 }
|
|
|
694
|
|
|
695 System.out.println(str);
|
|
|
696 e.printStackTrace();
|
|
|
697
|
|
|
698 if (rfb != null)
|
|
|
699 rfb.close();
|
|
|
700
|
|
|
701 System.exit(1);
|
|
|
702
|
|
|
703 }
|
|
|
704
|
|
|
705 //
|
|
|
706 // Show message text and optionally "Relogin" and "Close" buttons.
|
|
|
707 //
|
|
|
708
|
|
|
709 void showMessage(String msg) {
|
|
|
710 vncContainer.removeAll();
|
|
|
711
|
|
|
712 Label errLabel = new Label(msg, Label.CENTER);
|
|
|
713 errLabel.setFont(new Font("Helvetica", Font.PLAIN, 12));
|
|
|
714
|
|
|
715 if (offerRelogin) {
|
|
|
716 /*
|
|
|
717 * Panel gridPanel = new Panel(new GridLayout(0, 1)); Panel
|
|
|
718 * outerPanel = new Panel(new FlowLayout(FlowLayout.LEFT));
|
|
|
719 * outerPanel.add(gridPanel); vncContainer.setLayout(new
|
|
|
720 * FlowLayout(FlowLayout.LEFT, 30, 16));
|
|
|
721 * vncContainer.add(outerPanel); Panel textPanel = new Panel(new
|
|
|
722 * FlowLayout(FlowLayout.CENTER)); textPanel.add(errLabel);
|
|
|
723 * gridPanel.add(textPanel); gridPanel.add(new ReloginPanel(this));
|
|
|
724 */
|
|
|
725 } else {
|
|
|
726 /*
|
|
|
727 * vncContainer.setLayout(new FlowLayout(FlowLayout.LEFT, 30, 30));
|
|
|
728 * vncContainer.add(errLabel);
|
|
|
729 */
|
|
|
730 }
|
|
|
731
|
|
|
732 }
|
|
|
733
|
|
|
734 //
|
|
|
735 // Stop the applet.
|
|
|
736 // Main applet thread will terminate on first exception
|
|
|
737 // after seeing that rfbThread has been set to null.
|
|
|
738 //
|
|
|
739
|
|
|
740 public void stop() {
|
|
|
741 System.out.println("Stopping applet");
|
|
|
742 rfbThread = null;
|
|
|
743 }
|
|
|
744
|
|
|
745 //
|
|
|
746 // This method is called before the applet is destroyed.
|
|
|
747 //
|
|
|
748
|
|
|
749 public void destroy() {
|
|
|
750 System.out.println("Destroying applet");
|
|
|
751
|
|
|
752 vncContainer.removeAll();
|
|
|
753 options.dispose();
|
|
|
754 clipboard.dispose();
|
|
|
755 if (rec != null)
|
|
|
756 rec.dispose();
|
|
|
757 if (rfb != null && !rfb.closed())
|
|
|
758 rfb.close();
|
|
|
759 }
|
|
|
760
|
|
|
761 //
|
|
|
762 // Start/stop receiving mouse events.
|
|
|
763 //
|
|
|
764
|
|
|
765 public void enableInput(boolean enable) {
|
|
|
766 vc.enableInput(enable);
|
|
|
767 }
|
|
|
768
|
|
|
769 //
|
|
|
770 // Close application properly on window close event.
|
|
|
771 //
|
|
|
772
|
|
|
773 public void windowClosing(WindowEvent evt) {
|
|
|
774 System.out.println("Closing window");
|
|
|
775 if (rfb != null)
|
|
|
776 disconnect();
|
|
|
777
|
|
|
778 vncContainer.hide();
|
|
|
779
|
|
|
780 }
|
|
|
781
|
|
|
782 //
|
|
|
783 // Ignore window events we're not interested in.
|
|
|
784 //
|
|
|
785
|
|
|
786 public void windowActivated(WindowEvent evt) {
|
|
|
787 }
|
|
|
788
|
|
|
789 public void windowDeactivated(WindowEvent evt) {
|
|
|
790 }
|
|
|
791
|
|
|
792 public void windowOpened(WindowEvent evt) {
|
|
|
793 }
|
|
|
794
|
|
|
795 public void windowClosed(WindowEvent evt) {
|
|
|
796 }
|
|
|
797
|
|
|
798 public void windowIconified(WindowEvent evt) {
|
|
|
799 }
|
|
|
800
|
|
|
801 public void windowDeiconified(WindowEvent evt) {
|
|
|
802 }
|
|
|
803 }
|
