1 | //
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2 | // Copyright (C) 1997, 1998 Olivetti & Oracle Research Laboratory
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3 | //
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4 | // This is free software; you can redistribute it and/or modify
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5 | // it under the terms of the GNU General Public License as published by
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6 | // the Free Software Foundation; either version 2 of the License, or
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7 | // (at your option) any later version.
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8 | //
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9 | // This software is distributed in the hope that it will be useful,
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10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 | // GNU General Public License for more details.
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13 | //
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14 | // You should have received a copy of the GNU General Public License
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15 | // along with this software; if not, write to the Free Software
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16 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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17 | // USA.
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18 | //
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19 |
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20 | //
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21 | // rfbProto.java
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22 | //
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23 | package mindbright.vnc;
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24 |
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25 | import java.io.*;
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26 | import java.awt.*;
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27 | import java.net.Socket;
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28 |
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29 | import mindbright.ssh.*;
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30 | import mindbright.application.MindVNC;
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31 |
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32 | /*
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33 | class myInputStream extends FilterInputStream {
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34 | public myInputStream(InputStream in) {
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35 | super(in);
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36 | }
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37 | public int read(byte[] b, int off, int len) throws IOException {
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38 | System.out.println("read(byte[] b, int off, int len) called");
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39 | return super.read(b, off, len);
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40 | }
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41 | }
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42 | */
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43 |
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44 | public class rfbProto {
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45 |
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46 | final String versionMsg = "RFB 003.003\n";
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47 | final int ConnFailed = 0, NoAuth = 1, VncAuth = 2;
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48 | final int VncAuthOK = 0, VncAuthFailed = 1, VncAuthTooMany = 2;
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49 |
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50 | final int FramebufferUpdate = 0, SetColourMapEntries = 1, Bell = 2,
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51 | ServerCutText = 3;
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52 |
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53 | final int SetPixelFormat = 0, FixColourMapEntries = 1, SetEncodings = 2,
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54 | FramebufferUpdateRequest = 3, KeyEvent = 4, PointerEvent = 5,
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55 | ClientCutText = 6;
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56 |
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57 | final static int EncodingRaw = 0, EncodingCopyRect = 1, EncodingRRE = 2,
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58 | EncodingCoRRE = 4, EncodingHextile = 5;
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59 |
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60 | final int HextileRaw = (1 << 0);
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61 | final int HextileBackgroundSpecified = (1 << 1);
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62 | final int HextileForegroundSpecified = (1 << 2);
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63 | final int HextileAnySubrects = (1 << 3);
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64 | final int HextileSubrectsColoured = (1 << 4);
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65 |
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66 | String vncHost;
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67 | int vncPort;
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68 |
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69 | SSHSocket sock;
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70 | SSHSocketFactory fact;
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71 |
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72 | DataInputStream is;
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73 | OutputStream os;
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74 | public boolean inNormalProtocol = false;
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75 | MindVNC v;
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76 |
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77 |
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78 | //
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79 | // Constructor. Just make TCP connection to RFB server.
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80 | //
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81 |
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82 | public rfbProto(String sshHost, int sshPort, String sshUser, String sshPasswd,
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83 | String vncHost, int vncPort, MindVNC v1) throws IOException {
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84 | v = v1;
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85 |
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86 | this.vncHost = vncHost;
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87 | this.vncPort = vncPort;
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88 |
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89 | fact = new SSHSocketFactory(sshHost, sshPort, new SSHPasswordAuthenticator(sshUser, sshPasswd));
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90 |
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91 | sock = fact.createSocket(vncHost, vncPort);
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92 |
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93 | is = new DataInputStream(new BufferedInputStream(sock.getInputStream(),
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94 | 16384));
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95 | os = sock.getOutputStream();
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96 | }
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97 |
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98 |
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99 | public void close() {
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100 | try {
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101 | sock.close();
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102 | } catch (Exception e) {
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103 | e.printStackTrace();
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104 | }
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105 | }
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106 |
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107 | //
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108 | // Read server's protocol version message
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109 | //
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110 |
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111 | int serverMajor, serverMinor;
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112 |
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113 | void readVersionMsg() throws IOException {
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114 |
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115 | byte[] b = new byte[12];
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116 |
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117 | is.readFully(b);
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118 |
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119 | if ((b[0] != 'R') || (b[1] != 'F') || (b[2] != 'B') || (b[3] != ' ')
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120 | || (b[4] < '0') || (b[4] > '9') || (b[5] < '0') || (b[5] > '9')
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121 | || (b[6] < '0') || (b[6] > '9') || (b[7] != '.')
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122 | || (b[8] < '0') || (b[8] > '9') || (b[9] < '0') || (b[9] > '9')
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123 | || (b[10] < '0') || (b[10] > '9') || (b[11] != '\n'))
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124 | {
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125 | throw new IOException("Host " + vncHost + " port " + vncPort +
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126 | " is not an RFB server");
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127 | }
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128 |
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129 | serverMajor = (b[4] - '0') * 100 + (b[5] - '0') * 10 + (b[6] - '0');
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130 | serverMinor = (b[8] - '0') * 100 + (b[9] - '0') * 10 + (b[10] - '0');
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131 | }
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132 |
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133 | public boolean connectAndAuthenticate(authenticationPanel authenticator) throws IOException {
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134 | boolean authenticationDone = false;
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135 |
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136 | readVersionMsg();
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137 |
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138 | System.out.println("RFB server supports protocol version " +
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139 | serverMajor + "." + serverMinor);
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140 |
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141 | writeVersionMsg();
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142 |
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143 | switch (readAuthScheme()) {
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144 |
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145 | case NoAuth:
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146 | System.out.println("No authentication needed");
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147 | authenticationDone = true;
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148 | break;
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149 |
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150 | case VncAuth:
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151 | byte[] challenge = new byte[16];
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152 | is.readFully(challenge);
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153 |
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154 | String pw = authenticator.vncPassword.getText();
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155 | if (pw.length() > 8) pw = pw.substring(0,8); // truncate to 8 chars
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156 |
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157 | byte[] key = new byte[8];
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158 | pw.getBytes(0, pw.length(), key, 0);
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159 |
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160 | for (int i = pw.length(); i < 8; i++) {
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161 | key[i] = (byte)0;
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162 | }
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163 |
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164 | DesCipher des = new DesCipher(key);
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165 |
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166 | des.encrypt(challenge,0,challenge,0);
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167 | des.encrypt(challenge,8,challenge,8);
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168 |
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169 | os.write(challenge);
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170 |
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171 | int authResult = is.readInt();
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172 |
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173 | switch (authResult) {
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174 | case VncAuthOK:
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175 | System.out.println("VNC authentication succeeded");
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176 | authenticationDone = true;
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177 | break;
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178 | case VncAuthFailed:
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179 | System.out.println("VNC authentication failed");
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180 | authenticator.retry("VNC access denied");
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181 | break;
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182 | case VncAuthTooMany:
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183 | throw new IOException("VNC authentication failed - " +
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184 | "too many tries");
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185 | default:
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186 | throw new IOException("Unknown VNC authentication result " +
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187 | authResult);
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188 | }
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189 | break;
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190 | }
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191 |
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192 | return authenticationDone;
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193 | }
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194 |
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195 |
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196 | //
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197 | // Write our protocol version message
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198 | //
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199 |
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200 | void writeVersionMsg() throws IOException {
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201 | byte[] b = new byte[12];
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202 | versionMsg.getBytes(0, 12, b, 0);
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203 | os.write(b);
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204 | }
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205 |
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206 |
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207 | //
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208 | // Find out the authentication scheme.
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209 | //
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210 |
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211 | int readAuthScheme() throws IOException {
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212 | int authScheme = is.readInt();
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213 |
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214 | switch (authScheme) {
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215 |
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216 | case ConnFailed:
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217 | int reasonLen = is.readInt();
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218 | byte[] reason = new byte[reasonLen];
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219 | is.readFully(reason);
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220 | throw new IOException(new String(reason, 0));
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221 |
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222 | case NoAuth:
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223 | case VncAuth:
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224 | return authScheme;
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225 |
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226 | default:
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227 | throw new IOException("Unknown authentication scheme from RFB " +
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228 | "server " + authScheme);
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229 |
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230 | }
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231 | }
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232 |
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233 |
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234 | //
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235 | // Do the rest of the protocol initialisation.
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236 | //
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237 |
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238 | public void doProtocolInitialisation(int[] encodings, int nEncodings) throws IOException {
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239 | System.out.println("sending client init");
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240 |
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241 | writeClientInit();
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242 |
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243 | readServerInit();
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244 |
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245 | System.out.println("Desktop name is " + desktopName);
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246 | System.out.println("Desktop size is " + framebufferWidth + " x " +
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247 | framebufferHeight);
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248 |
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249 | setEncodings(encodings, nEncodings);
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250 | }
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251 |
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252 | //
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253 | // setEncodings() - send the current encodings from the options frame
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254 | // to the RFB server.
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255 | //
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256 |
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257 | void setEncodings(int[] encodings, int nEncodings) {
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258 | try {
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259 | if (inNormalProtocol) {
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260 | writeSetEncodings(encodings, nEncodings);
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261 | }
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262 | } catch (Exception e) {
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263 | e.printStackTrace();
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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 | // Write the client initialisation message
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269 | //
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270 |
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271 |
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272 | void writeClientInit() throws IOException {
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273 | if (v.options.shareDesktop) {
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274 | os.write(1);
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275 | } else {
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276 | os.write(0);
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277 | }
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278 | v.options.disableShareDesktop();
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279 | }
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280 |
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281 |
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282 | //
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283 | // Read the server initialisation message
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284 | //
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285 |
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286 | public String desktopName;
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287 | public int framebufferWidth, framebufferHeight;
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288 | int bitsPerPixel, depth;
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289 | boolean bigEndian, trueColour;
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290 | int redMax, greenMax, blueMax, redShift, greenShift, blueShift;
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291 |
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292 | void readServerInit() throws IOException {
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293 | framebufferWidth = is.readUnsignedShort();
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294 | framebufferHeight = is.readUnsignedShort();
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295 | bitsPerPixel = is.readUnsignedByte();
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296 | depth = is.readUnsignedByte();
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297 | bigEndian = (is.readUnsignedByte() != 0);
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298 | trueColour = (is.readUnsignedByte() != 0);
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299 | redMax = is.readUnsignedShort();
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300 | greenMax = is.readUnsignedShort();
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301 | blueMax = is.readUnsignedShort();
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302 | redShift = is.readUnsignedByte();
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303 | greenShift = is.readUnsignedByte();
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304 | blueShift = is.readUnsignedByte();
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305 | byte[] pad = new byte[3];
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306 | is.read(pad);
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307 | int nameLength = is.readInt();
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308 | byte[] name = new byte[nameLength];
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309 | is.readFully(name);
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310 | desktopName = new String(name, 0);
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311 |
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312 | inNormalProtocol = true;
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313 | }
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314 |
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315 |
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316 | //
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317 | // Read the server message type
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318 | //
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319 |
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320 | int readServerMessageType() throws IOException {
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321 | return is.read();
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322 | }
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323 |
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324 |
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325 | //
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326 | // Read a FramebufferUpdate message
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327 | //
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328 |
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329 | int updateNRects;
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330 |
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331 | void readFramebufferUpdate() throws IOException {
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332 | is.readByte();
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333 | updateNRects = is.readUnsignedShort();
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334 | }
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335 |
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336 | // Read a FramebufferUpdate rectangle header
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337 |
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338 | int updateRectX, updateRectY, updateRectW, updateRectH, updateRectEncoding;
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339 |
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340 | void readFramebufferUpdateRectHdr() throws IOException {
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341 | updateRectX = is.readUnsignedShort();
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342 | updateRectY = is.readUnsignedShort();
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343 | updateRectW = is.readUnsignedShort();
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344 | updateRectH = is.readUnsignedShort();
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345 | updateRectEncoding = is.readInt();
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346 |
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347 | if ((updateRectX + updateRectW > framebufferWidth) ||
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348 | (updateRectY + updateRectH > framebufferHeight)) {
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349 | throw new IOException("Framebuffer update rectangle too large: " +
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350 | updateRectW + "x" + updateRectH + " at (" +
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351 | updateRectX + "," + updateRectY + ")");
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352 | }
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353 | }
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354 |
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355 | // Read CopyRect source X and Y.
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356 |
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357 | int copyRectSrcX, copyRectSrcY;
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358 |
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359 | void readCopyRect() throws IOException {
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360 | copyRectSrcX = is.readUnsignedShort();
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361 | copyRectSrcY = is.readUnsignedShort();
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362 | }
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363 |
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364 |
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365 | //
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366 | // Read a ServerCutText message
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367 | //
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368 |
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369 | String readServerCutText() throws IOException {
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370 | byte[] pad = new byte[3];
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371 | is.read(pad);
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372 | int len = is.readInt();
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373 | byte[] text = new byte[len];
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374 | is.readFully(text);
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375 | return new String(text, 0);
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376 | }
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377 |
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378 |
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379 | //
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380 | // Write a FramebufferUpdateRequest message
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381 | //
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382 |
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383 | void writeFramebufferUpdateRequest(int x, int y, int w, int h,
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384 | boolean incremental)
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385 | throws IOException
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386 | {
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387 | byte[] b = new byte[10];
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388 |
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389 | b[0] = (byte) FramebufferUpdateRequest;
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390 | b[1] = (byte) (incremental ? 1 : 0);
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391 | b[2] = (byte) ((x >> 8) & 0xff);
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392 | b[3] = (byte) (x & 0xff);
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393 | b[4] = (byte) ((y >> 8) & 0xff);
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394 | b[5] = (byte) (y & 0xff);
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395 | b[6] = (byte) ((w >> 8) & 0xff);
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396 | b[7] = (byte) (w & 0xff);
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397 | b[8] = (byte) ((h >> 8) & 0xff);
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398 | b[9] = (byte) (h & 0xff);
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399 |
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400 | os.write(b);
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401 | }
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402 |
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403 |
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404 | //
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405 | // Write a SetPixelFormat message
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406 | //
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407 |
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408 | void writeSetPixelFormat(int bitsPerPixel, int depth, boolean bigEndian,
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409 | boolean trueColour,
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410 | int redMax, int greenMax, int blueMax,
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411 | int redShift, int greenShift, int blueShift)
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412 | throws IOException
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413 | {
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414 | byte[] b = new byte[20];
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415 |
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416 | b[0] = (byte) SetPixelFormat;
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417 | b[4] = (byte) bitsPerPixel;
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418 | b[5] = (byte) depth;
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419 | b[6] = (byte) (bigEndian ? 1 : 0);
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420 | b[7] = (byte) (trueColour ? 1 : 0);
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421 | b[8] = (byte) ((redMax >> 8) & 0xff);
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422 | b[9] = (byte) (redMax & 0xff);
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423 | b[10] = (byte) ((greenMax >> 8) & 0xff);
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424 | b[11] = (byte) (greenMax & 0xff);
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425 | b[12] = (byte) ((blueMax >> 8) & 0xff);
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426 | b[13] = (byte) (blueMax & 0xff);
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427 | b[14] = (byte) redShift;
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428 | b[15] = (byte) greenShift;
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429 | b[16] = (byte) blueShift;
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430 |
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431 | os.write(b);
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432 | }
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433 |
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434 |
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435 | //
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436 | // Write a FixColourMapEntries message. The values in the red, green and
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437 | // blue arrays are from 0 to 65535.
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438 | //
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439 |
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440 | void writeFixColourMapEntries(int firstColour, int nColours,
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441 | int[] red, int[] green, int[] blue)
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442 | throws IOException
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443 | {
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444 | byte[] b = new byte[6 + nColours * 6];
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445 |
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446 | b[0] = (byte) FixColourMapEntries;
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447 | b[2] = (byte) ((firstColour >> 8) & 0xff);
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448 | b[3] = (byte) (firstColour & 0xff);
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449 | b[4] = (byte) ((nColours >> 8) & 0xff);
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450 | b[5] = (byte) (nColours & 0xff);
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451 |
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452 | for (int i = 0; i < nColours; i++) {
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453 | b[6 + i * 6] = (byte) ((red[i] >> 8) & 0xff);
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454 | b[6 + i * 6 + 1] = (byte) (red[i] & 0xff);
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455 | b[6 + i * 6 + 2] = (byte) ((green[i] >> 8) & 0xff);
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456 | b[6 + i * 6 + 3] = (byte) (green[i] & 0xff);
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457 | b[6 + i * 6 + 4] = (byte) ((blue[i] >> 8) & 0xff);
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458 | b[6 + i * 6 + 5] = (byte) (blue[i] & 0xff);
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459 | }
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460 |
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461 | os.write(b);
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462 | }
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463 |
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464 |
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465 | //
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466 | // Write a SetEncodings message
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467 | //
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468 |
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469 | void writeSetEncodings(int[] encs, int len) throws IOException {
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470 | byte[] b = new byte[4 + 4 * len];
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471 |
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472 | b[0] = (byte) SetEncodings;
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473 | b[2] = (byte) ((len >> 8) & 0xff);
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474 | b[3] = (byte) (len & 0xff);
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475 |
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476 | for (int i = 0; i < len; i++) {
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477 | b[4 + 4 * i] = (byte) ((encs[i] >> 24) & 0xff);
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478 | b[5 + 4 * i] = (byte) ((encs[i] >> 16) & 0xff);
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479 | b[6 + 4 * i] = (byte) ((encs[i] >> 8) & 0xff);
|
---|
480 | b[7 + 4 * i] = (byte) (encs[i] & 0xff);
|
---|
481 | }
|
---|
482 |
|
---|
483 | os.write(b);
|
---|
484 | }
|
---|
485 |
|
---|
486 |
|
---|
487 | //
|
---|
488 | // Write a ClientCutText message
|
---|
489 | //
|
---|
490 |
|
---|
491 | public void writeClientCutText(String text) throws IOException {
|
---|
492 | byte[] b = new byte[8 + text.length()];
|
---|
493 |
|
---|
494 | b[0] = (byte) ClientCutText;
|
---|
495 | b[4] = (byte) ((text.length() >> 24) & 0xff);
|
---|
496 | b[5] = (byte) ((text.length() >> 16) & 0xff);
|
---|
497 | b[6] = (byte) ((text.length() >> 8) & 0xff);
|
---|
498 | b[7] = (byte) (text.length() & 0xff);
|
---|
499 |
|
---|
500 | text.getBytes(0, text.length(), b, 8);
|
---|
501 |
|
---|
502 | os.write(b);
|
---|
503 | }
|
---|
504 |
|
---|
505 |
|
---|
506 | //
|
---|
507 | // A buffer for putting pointer and keyboard events before being sent. This
|
---|
508 | // is to ensure that multiple RFB events generated from a single Java Event
|
---|
509 | // will all be sent in a single network packet. The maximum possible
|
---|
510 | // length is 4 modifier down events, a single key event followed by 4
|
---|
511 | // modifier up events i.e. 9 key events or 72 bytes.
|
---|
512 | //
|
---|
513 |
|
---|
514 | byte[] eventBuf = new byte[72];
|
---|
515 | int eventBufLen;
|
---|
516 |
|
---|
517 |
|
---|
518 | //
|
---|
519 | // Write a pointer event message. We may need to send modifier key events
|
---|
520 | // around it to set the correct modifier state. Also buttons 2 and 3 are
|
---|
521 | // represented as having ALT and META modifiers respectively.
|
---|
522 | //
|
---|
523 |
|
---|
524 | int pointerMask = 0;
|
---|
525 |
|
---|
526 | void writePointerEvent(Event evt)
|
---|
527 | throws IOException
|
---|
528 | {
|
---|
529 | byte[] b = new byte[6];
|
---|
530 |
|
---|
531 | if (evt.id == Event.MOUSE_DOWN) {
|
---|
532 | pointerMask = 1;
|
---|
533 | if ((evt.modifiers & Event.ALT_MASK) != 0) {
|
---|
534 | if (v.options.reverseMouseButtons2And3)
|
---|
535 | pointerMask = 4;
|
---|
536 | else
|
---|
537 | pointerMask = 2;
|
---|
538 | }
|
---|
539 | if ((evt.modifiers & Event.META_MASK) != 0) {
|
---|
540 | if (v.options.reverseMouseButtons2And3)
|
---|
541 | pointerMask = 2;
|
---|
542 | else
|
---|
543 | pointerMask = 4;
|
---|
544 | }
|
---|
545 | } else if (evt.id == Event.MOUSE_UP) {
|
---|
546 | pointerMask = 0;
|
---|
547 | }
|
---|
548 |
|
---|
549 | evt.modifiers &= ~(Event.ALT_MASK|Event.META_MASK);
|
---|
550 |
|
---|
551 | eventBufLen = 0;
|
---|
552 |
|
---|
553 | writeModifierKeyEvents(evt.modifiers);
|
---|
554 |
|
---|
555 | if (evt.x < 0) evt.x = 0;
|
---|
556 | if (evt.y < 0) evt.y = 0;
|
---|
557 |
|
---|
558 | eventBuf[eventBufLen++] = (byte) PointerEvent;
|
---|
559 | eventBuf[eventBufLen++] = (byte) pointerMask;
|
---|
560 | eventBuf[eventBufLen++] = (byte) ((evt.x >> 8) & 0xff);
|
---|
561 | eventBuf[eventBufLen++] = (byte) (evt.x & 0xff);
|
---|
562 | eventBuf[eventBufLen++] = (byte) ((evt.y >> 8) & 0xff);
|
---|
563 | eventBuf[eventBufLen++] = (byte) (evt.y & 0xff);
|
---|
564 |
|
---|
565 | //
|
---|
566 | // Always release all modifiers after an "up" event
|
---|
567 | //
|
---|
568 |
|
---|
569 | if (pointerMask == 0) {
|
---|
570 | writeModifierKeyEvents(0);
|
---|
571 | }
|
---|
572 |
|
---|
573 | os.write(eventBuf, 0, eventBufLen);
|
---|
574 | }
|
---|
575 |
|
---|
576 |
|
---|
577 | //
|
---|
578 | // Write a key event message. We may need to send modifier key events
|
---|
579 | // around it to set the correct modifier state. Also we need to translate
|
---|
580 | // from the Java key values to the X keysym values used by the RFB protocol.
|
---|
581 | //
|
---|
582 |
|
---|
583 | public void sendCtrlAltDel() {
|
---|
584 | try {
|
---|
585 | Event ctrlAltDelEvent = new Event(null, 0, null);
|
---|
586 | ctrlAltDelEvent.key = 127;
|
---|
587 | ctrlAltDelEvent.modifiers = Event.CTRL_MASK | Event.ALT_MASK;
|
---|
588 | ctrlAltDelEvent.id = Event.KEY_PRESS;
|
---|
589 | writeKeyEvent(ctrlAltDelEvent);
|
---|
590 | ctrlAltDelEvent.id = Event.KEY_RELEASE;
|
---|
591 | writeKeyEvent(ctrlAltDelEvent);
|
---|
592 | } catch (Exception e) {
|
---|
593 | e.printStackTrace();
|
---|
594 | }
|
---|
595 | }
|
---|
596 |
|
---|
597 | void writeKeyEvent(Event evt)
|
---|
598 | throws IOException
|
---|
599 | {
|
---|
600 | int key = evt.key;
|
---|
601 | boolean down = false;
|
---|
602 |
|
---|
603 | if ((evt.id == Event.KEY_PRESS) || (evt.id == Event.KEY_ACTION))
|
---|
604 | down = true;
|
---|
605 |
|
---|
606 | if ((evt.id == Event.KEY_ACTION) || (evt.id == Event.KEY_ACTION_RELEASE)) {
|
---|
607 |
|
---|
608 | //
|
---|
609 | // A KEY_ACTION event should be one of the following. If not then just
|
---|
610 | // ignore the event.
|
---|
611 | //
|
---|
612 |
|
---|
613 | switch(key) {
|
---|
614 | case Event.HOME: key = 0xff50; break;
|
---|
615 | case Event.LEFT: key = 0xff51; break;
|
---|
616 | case Event.UP: key = 0xff52; break;
|
---|
617 | case Event.RIGHT: key = 0xff53; break;
|
---|
618 | case Event.DOWN: key = 0xff54; break;
|
---|
619 | case Event.PGUP: key = 0xff55; break;
|
---|
620 | case Event.PGDN: key = 0xff56; break;
|
---|
621 | case Event.END: key = 0xff57; break;
|
---|
622 | case Event.F1: key = 0xffbe; break;
|
---|
623 | case Event.F2: key = 0xffbf; break;
|
---|
624 | case Event.F3: key = 0xffc0; break;
|
---|
625 | case Event.F4: key = 0xffc1; break;
|
---|
626 | case Event.F5: key = 0xffc2; break;
|
---|
627 | case Event.F6: key = 0xffc3; break;
|
---|
628 | case Event.F7: key = 0xffc4; break;
|
---|
629 | case Event.F8: key = 0xffc5; break;
|
---|
630 | case Event.F9: key = 0xffc6; break;
|
---|
631 | case Event.F10: key = 0xffc7; break;
|
---|
632 | case Event.F11: key = 0xffc8; break;
|
---|
633 | case Event.F12: key = 0xffc9; break;
|
---|
634 | default:
|
---|
635 | return;
|
---|
636 | }
|
---|
637 |
|
---|
638 | } else {
|
---|
639 |
|
---|
640 | //
|
---|
641 | // A "normal" key press. Ordinary ASCII characters go straight through.
|
---|
642 | // For CTRL-<letter>, CTRL is sent separately so just send <letter>.
|
---|
643 | // Backspace, tab, return, escape and delete have special keysyms.
|
---|
644 | // Anything else we ignore.
|
---|
645 | //
|
---|
646 |
|
---|
647 | if (key < 32) {
|
---|
648 | if ((evt.modifiers & Event.CTRL_MASK) != 0) {
|
---|
649 | key += 96;
|
---|
650 | } else {
|
---|
651 | switch(key) {
|
---|
652 | case 8: key = 0xff08; break;
|
---|
653 | case 9: key = 0xff09; break;
|
---|
654 | case 10: key = 0xff0d; break;
|
---|
655 | case 27: key = 0xff1b; break;
|
---|
656 | }
|
---|
657 | }
|
---|
658 | } else if (key >= 127) {
|
---|
659 | if (key == 127) {
|
---|
660 | key = 0xffff;
|
---|
661 | } else {
|
---|
662 | // JDK1.1 on X incorrectly passes some keysyms straight through, so
|
---|
663 | // we do too. JDK1.1.4 seems to have fixed this.
|
---|
664 | if ((key < 0xff00) || (key > 0xffff))
|
---|
665 | return;
|
---|
666 | }
|
---|
667 | }
|
---|
668 | }
|
---|
669 |
|
---|
670 | eventBufLen = 0;
|
---|
671 |
|
---|
672 | writeModifierKeyEvents(evt.modifiers);
|
---|
673 |
|
---|
674 | writeKeyEvent(key, down);
|
---|
675 |
|
---|
676 | //
|
---|
677 | // Always release all modifiers after an "up" event
|
---|
678 | //
|
---|
679 |
|
---|
680 | if (!down) {
|
---|
681 | writeModifierKeyEvents(0);
|
---|
682 | }
|
---|
683 |
|
---|
684 | os.write(eventBuf, 0, eventBufLen);
|
---|
685 | }
|
---|
686 |
|
---|
687 |
|
---|
688 | //
|
---|
689 | // Add a raw key event with the given X keysym to eventBuf.
|
---|
690 | //
|
---|
691 |
|
---|
692 | void writeKeyEvent(int keysym, boolean down)
|
---|
693 | throws IOException
|
---|
694 | {
|
---|
695 | eventBuf[eventBufLen++] = (byte) KeyEvent;
|
---|
696 | eventBuf[eventBufLen++] = (byte) (down ? 1 : 0);
|
---|
697 | eventBuf[eventBufLen++] = (byte) 0;
|
---|
698 | eventBuf[eventBufLen++] = (byte) 0;
|
---|
699 | eventBuf[eventBufLen++] = (byte) ((keysym >> 24) & 0xff);
|
---|
700 | eventBuf[eventBufLen++] = (byte) ((keysym >> 16) & 0xff);
|
---|
701 | eventBuf[eventBufLen++] = (byte) ((keysym >> 8) & 0xff);
|
---|
702 | eventBuf[eventBufLen++] = (byte) (keysym & 0xff);
|
---|
703 | }
|
---|
704 |
|
---|
705 |
|
---|
706 | //
|
---|
707 | // Write key events to set the correct modifier state.
|
---|
708 | //
|
---|
709 |
|
---|
710 | int oldModifiers;
|
---|
711 |
|
---|
712 | void writeModifierKeyEvents(int newModifiers)
|
---|
713 | throws IOException
|
---|
714 | {
|
---|
715 | if ((newModifiers & Event.CTRL_MASK) != (oldModifiers & Event.CTRL_MASK))
|
---|
716 | writeKeyEvent(0xffe3, (newModifiers & Event.CTRL_MASK) != 0);
|
---|
717 |
|
---|
718 | if ((newModifiers & Event.SHIFT_MASK) != (oldModifiers & Event.SHIFT_MASK))
|
---|
719 | writeKeyEvent(0xffe1, (newModifiers & Event.SHIFT_MASK) != 0);
|
---|
720 |
|
---|
721 | if ((newModifiers & Event.META_MASK) != (oldModifiers & Event.META_MASK))
|
---|
722 | writeKeyEvent(0xffe7, (newModifiers & Event.META_MASK) != 0);
|
---|
723 |
|
---|
724 | if ((newModifiers & Event.ALT_MASK) != (oldModifiers & Event.ALT_MASK))
|
---|
725 | writeKeyEvent(0xffe9, (newModifiers & Event.ALT_MASK) != 0);
|
---|
726 |
|
---|
727 | oldModifiers = newModifiers;
|
---|
728 | }
|
---|
729 | }
|
---|