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24
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1 package myVncProxy;
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0
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2 //
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3 // Copyright (C) 2001-2004 HorizonLive.com, Inc. All Rights Reserved.
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4 // Copyright (C) 2001-2006 Constantin Kaplinsky. All Rights Reserved.
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5 // Copyright (C) 2000 Tridia Corporation. All Rights Reserved.
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6 // Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
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7 //
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8 // This is free software; you can redistribute it and/or modify
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9 // it under the terms of the GNU General Public License as published by
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10 // the Free Software Foundation; either version 2 of the License, or
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11 // (at your option) any later version.
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12 //
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13 // This software is distributed in the hope that it will be useful,
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14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 // GNU General Public License for more details.
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17 //
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18 // You should have received a copy of the GNU General Public License
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19 // along with this software; if not, write to the Free Software
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20 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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21 // USA.
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22 //
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23
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24 //
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25 // RfbProto.java
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26 //
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27
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28 import java.io.*;
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29 import java.awt.*;
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30 import java.awt.event.*;
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31 import java.net.Socket;
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32 import java.net.ServerSocket;
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33 import java.util.zip.*;
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34 import java.nio.*;
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35
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36 class RfbProto {
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37
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4
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38 final static String versionMsg_3_3 = "RFB 003.003\n",
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39 versionMsg_3_7 = "RFB 003.007\n", versionMsg_3_8 = "RFB 003.008\n";
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40
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41 // Vendor signatures: standard VNC/RealVNC, TridiaVNC, and TightVNC
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42 final static String StandardVendor = "STDV", TridiaVncVendor = "TRDV",
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43 TightVncVendor = "TGHT";
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44
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4
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45 // Security types
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46 final static int SecTypeInvalid = 0, SecTypeNone = 1, SecTypeVncAuth = 2,
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47 SecTypeTight = 16;
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48
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49 // Supported tunneling types
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50 final static int NoTunneling = 0;
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51 final static String SigNoTunneling = "NOTUNNEL";
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52
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53 // Supported authentication types
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54 final static int AuthNone = 1, AuthVNC = 2, AuthUnixLogin = 129;
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55 final static String SigAuthNone = "NOAUTH__", SigAuthVNC = "VNCAUTH_",
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56 SigAuthUnixLogin = "ULGNAUTH";
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57
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58 // VNC authentication results
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59 final static int VncAuthOK = 0, VncAuthFailed = 1, VncAuthTooMany = 2;
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60
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61 // Standard server-to-client messages
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62 final static int FramebufferUpdate = 0, SetColourMapEntries = 1, Bell = 2,
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63 ServerCutText = 3;
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64
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65 // Non-standard server-to-client messages
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66 final static int EndOfContinuousUpdates = 150;
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67 final static String SigEndOfContinuousUpdates = "CUS_EOCU";
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68
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69 // Standard client-to-server messages
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70 final static int SetPixelFormat = 0, FixColourMapEntries = 1,
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71 SetEncodings = 2, FramebufferUpdateRequest = 3, KeyboardEvent = 4,
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72 PointerEvent = 5, ClientCutText = 6;
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73
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74 // Non-standard client-to-server messages
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75 final static int EnableContinuousUpdates = 150;
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76 final static String SigEnableContinuousUpdates = "CUC_ENCU";
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77
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78 // Supported encodings and pseudo-encodings
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79 final static int EncodingRaw = 0, EncodingCopyRect = 1, EncodingRRE = 2,
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80 EncodingCoRRE = 4, EncodingHextile = 5, EncodingZlib = 6,
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81 EncodingTight = 7, EncodingZRLE = 16,
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82 EncodingCompressLevel0 = 0xFFFFFF00,
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83 EncodingQualityLevel0 = 0xFFFFFFE0, EncodingXCursor = 0xFFFFFF10,
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84 EncodingRichCursor = 0xFFFFFF11, EncodingPointerPos = 0xFFFFFF18,
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85 EncodingLastRect = 0xFFFFFF20, EncodingNewFBSize = 0xFFFFFF21;
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86 final static String SigEncodingRaw = "RAW_____",
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87 SigEncodingCopyRect = "COPYRECT", SigEncodingRRE = "RRE_____",
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88 SigEncodingCoRRE = "CORRE___", SigEncodingHextile = "HEXTILE_",
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89 SigEncodingZlib = "ZLIB____", SigEncodingTight = "TIGHT___",
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90 SigEncodingZRLE = "ZRLE____",
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91 SigEncodingCompressLevel0 = "COMPRLVL",
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92 SigEncodingQualityLevel0 = "JPEGQLVL",
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93 SigEncodingXCursor = "X11CURSR",
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94 SigEncodingRichCursor = "RCHCURSR",
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95 SigEncodingPointerPos = "POINTPOS",
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96 SigEncodingLastRect = "LASTRECT",
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97 SigEncodingNewFBSize = "NEWFBSIZ";
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98
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99 final static int MaxNormalEncoding = 255;
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100
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101 // Contstants used in the Hextile decoder
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102 final static int HextileRaw = 1, HextileBackgroundSpecified = 2,
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103 HextileForegroundSpecified = 4, HextileAnySubrects = 8,
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104 HextileSubrectsColoured = 16;
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105
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106 // Contstants used in the Tight decoder
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107 final static int TightMinToCompress = 12;
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108 final static int TightExplicitFilter = 0x04, TightFill = 0x08,
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109 TightJpeg = 0x09, TightMaxSubencoding = 0x09,
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110 TightFilterCopy = 0x00, TightFilterPalette = 0x01,
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111 TightFilterGradient = 0x02;
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112
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113 String host;
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114 int port;
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115 Socket sock;
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116 OutputStream os;
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117 SessionRecorder rec;
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118 boolean inNormalProtocol = false;
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119 VncViewer viewer;
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120
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121 // Input stream is declared private to make sure it can be accessed
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122 // only via RfbProto methods. We have to do this because we want to
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123 // count how many bytes were read.
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124 // private DataInputStream is;
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125 protected DataInputStream is;
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126 // private long numBytesRead = 0;
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127 protected long numBytesRead = 0;
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128
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129 public long getNumBytesRead() {
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130 return numBytesRead;
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131 }
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132
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133
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134 // Java on UNIX does not call keyPressed() on some keys, for example
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135 // swedish keys To prevent our workaround to produce duplicate
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136 // keypresses on JVMs that actually works, keep track of if
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137 // keyPressed() for a "broken" key was called or not.
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138 boolean brokenKeyPressed = false;
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139
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140 // This will be set to true on the first framebuffer update
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141 // containing Zlib-, ZRLE- or Tight-encoded data.
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142 boolean wereZlibUpdates = false;
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143
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144 // This will be set to false if the startSession() was called after
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145 // we have received at least one Zlib-, ZRLE- or Tight-encoded
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146 // framebuffer update.
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147 boolean recordFromBeginning = true;
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148
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149 // This fields are needed to show warnings about inefficiently saved
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150 // sessions only once per each saved session file.
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151 boolean zlibWarningShown;
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152 boolean tightWarningShown;
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153
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154 // Before starting to record each saved session, we set this field
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155 // to 0, and increment on each framebuffer update. We don't flush
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156 // the SessionRecorder data into the file before the second update.
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157 // This allows us to write initial framebuffer update with zero
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158 // timestamp, to let the player show initial desktop before
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159 // playback.
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160 int numUpdatesInSession;
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161
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162 // Measuring network throughput.
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163 boolean timing;
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164 long timeWaitedIn100us;
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165 long timedKbits;
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166
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167 // Protocol version and TightVNC-specific protocol options.
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168 int serverMajor, serverMinor;
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169 int clientMajor, clientMinor;
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170 boolean protocolTightVNC;
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171 CapsContainer tunnelCaps, authCaps;
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172 CapsContainer serverMsgCaps, clientMsgCaps;
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173 CapsContainer encodingCaps;
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174
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175 // If true, informs that the RFB socket was closed.
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176 // private boolean closed;
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177 protected boolean closed;
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178
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179 //
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180 // Constructor. Make TCP connection to RFB server.
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181 //
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182 RfbProto(String h, int p, VncViewer v) throws IOException {
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183 viewer = v;
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184 host = h;
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185 port = p;
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186
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187 if (viewer.socketFactory == null) {
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188 sock = new Socket(host, port);
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189 } else {
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190 try {
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191 Class factoryClass = Class.forName(viewer.socketFactory);
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192 SocketFactory factory = (SocketFactory) factoryClass
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193 .newInstance();
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194 if (viewer.inAnApplet)
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195 sock = factory.createSocket(host, port, viewer);
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196 else
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197 sock = factory.createSocket(host, port, viewer.mainArgs);
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198 } catch (Exception e) {
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199 e.printStackTrace();
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200 throw new IOException(e.getMessage());
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201 }
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202 }
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203 is = new DataInputStream(new BufferedInputStream(sock.getInputStream(),
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204 16384));
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205 os = sock.getOutputStream();
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206
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207 timing = false;
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208 timeWaitedIn100us = 5;
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209 timedKbits = 0;
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210 }
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211
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212 RfbProto(String h, int p) throws IOException {
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213 host = h;
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214 port = p;
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215
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216 sock = new Socket(host, port);
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217 is = new DataInputStream(new BufferedInputStream(sock.getInputStream(),
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218 16384));
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219 os = sock.getOutputStream();
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220
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221 timing = false;
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222 timeWaitedIn100us = 5;
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223 timedKbits = 0;
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224 }
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225
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226
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227
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228 synchronized void close() {
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229 try {
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230 sock.close();
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231 closed = true;
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232 System.out.println("RFB socket closed");
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233 if (rec != null) {
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234 rec.close();
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235 rec = null;
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236 }
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237 } catch (Exception e) {
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238 e.printStackTrace();
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239 }
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240 }
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241
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242 synchronized boolean closed() {
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243 return closed;
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244 }
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245
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246 //
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247 // Read server's protocol version message
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248 //
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249
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250 void readVersionMsg() throws Exception {
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251
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252 byte[] b = new byte[12];
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253
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254 readFully(b);
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255
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256 if ((b[0] != 'R') || (b[1] != 'F') || (b[2] != 'B') || (b[3] != ' ')
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257 || (b[4] < '0') || (b[4] > '9') || (b[5] < '0') || (b[5] > '9')
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258 || (b[6] < '0') || (b[6] > '9') || (b[7] != '.')
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259 || (b[8] < '0') || (b[8] > '9') || (b[9] < '0') || (b[9] > '9')
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260 || (b[10] < '0') || (b[10] > '9') || (b[11] != '\n')) {
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261 throw new Exception("Host " + host + " port " + port
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262 + " is not an RFB server");
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263 }
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264
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265 serverMajor = (b[4] - '0') * 100 + (b[5] - '0') * 10 + (b[6] - '0');
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266 serverMinor = (b[8] - '0') * 100 + (b[9] - '0') * 10 + (b[10] - '0');
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267
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268 if (serverMajor < 3) {
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269 throw new Exception(
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270 "RFB server does not support protocol version 3");
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271 }
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272 }
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273
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274 //
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275 // Write our protocol version message
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276 //
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277
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278 void writeVersionMsg() throws IOException {
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279 clientMajor = 3;
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280 if (serverMajor > 3 || serverMinor >= 8) {
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281 clientMinor = 8;
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282 os.write(versionMsg_3_8.getBytes());
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283 } else if (serverMinor >= 7) {
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284 clientMinor = 7;
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285 os.write(versionMsg_3_7.getBytes());
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286 } else {
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287 clientMinor = 3;
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288 os.write(versionMsg_3_3.getBytes());
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289 }
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290 protocolTightVNC = false;
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291 initCapabilities();
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292 }
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293
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294 //
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295 // Negotiate the authentication scheme.
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296 //
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297
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298 int negotiateSecurity() throws Exception {
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299 return (clientMinor >= 7) ? selectSecurityType() : readSecurityType();
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300 }
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301
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302 //
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303 // Read security type from the server (protocol version 3.3).
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304 //
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305
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306 int readSecurityType() throws Exception {
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307 int secType = readU32();
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308
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309 switch (secType) {
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310 case SecTypeInvalid:
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311 readConnFailedReason();
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312 return SecTypeInvalid; // should never be executed
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313 case SecTypeNone:
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314 case SecTypeVncAuth:
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315 return secType;
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316 default:
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317 throw new Exception("Unknown security type from RFB server: "
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318 + secType);
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319 }
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320 }
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321
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322 //
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323 // Select security type from the server's list (protocol versions 3.7/3.8).
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324 //
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325
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326 int selectSecurityType() throws Exception {
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327 int secType = SecTypeInvalid;
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328
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329 // Read the list of secutiry types.
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330 int nSecTypes = readU8();
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331 if (nSecTypes == 0) {
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332 readConnFailedReason();
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333 return SecTypeInvalid; // should never be executed
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334 }
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335 byte[] secTypes = new byte[nSecTypes];
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336 readFully(secTypes);
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337
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338 // Find out if the server supports TightVNC protocol extensions
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339 for (int i = 0; i < nSecTypes; i++) {
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340 if (secTypes[i] == SecTypeTight) {
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341 protocolTightVNC = true;
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342 os.write(SecTypeTight);
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343 return SecTypeTight;
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344 }
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345 }
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346
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347 // Find first supported security type.
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348 for (int i = 0; i < nSecTypes; i++) {
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349 if (secTypes[i] == SecTypeNone || secTypes[i] == SecTypeVncAuth) {
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350 secType = secTypes[i];
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351 break;
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352 }
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353 }
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354
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355 if (secType == SecTypeInvalid) {
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356 throw new Exception("Server did not offer supported security type");
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357 } else {
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358 os.write(secType);
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359 }
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360
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361 return secType;
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362 }
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363
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364 //
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365 // Perform "no authentication".
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366 //
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367
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368 void authenticateNone() throws Exception {
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369 if (clientMinor >= 8)
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370 readSecurityResult("No authentication");
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371 }
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372
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4
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373 //
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374 // Perform standard VNC Authentication.
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375 //
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376
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377 void authenticateVNC(String pw) throws Exception {
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378 byte[] challenge = new byte[16];
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379 readFully(challenge);
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380
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381 if (pw.length() > 8)
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382 pw = pw.substring(0, 8); // Truncate to 8 chars
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383
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4
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384 // Truncate password on the first zero byte.
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385 int firstZero = pw.indexOf(0);
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386 if (firstZero != -1)
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387 pw = pw.substring(0, firstZero);
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388
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389 byte[] key = { 0, 0, 0, 0, 0, 0, 0, 0 };
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390 System.arraycopy(pw.getBytes(), 0, key, 0, pw.length());
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391
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392 DesCipher des = new DesCipher(key);
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393
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4
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394 des.encrypt(challenge, 0, challenge, 0);
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395 des.encrypt(challenge, 8, challenge, 8);
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396
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397 os.write(challenge);
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398
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|
399 readSecurityResult("VNC authentication");
|
|
|
400 }
|
|
0
|
401
|
|
4
|
402 //
|
|
|
403 // Read security result.
|
|
|
404 // Throws an exception on authentication failure.
|
|
|
405 //
|
|
0
|
406
|
|
4
|
407 void readSecurityResult(String authType) throws Exception {
|
|
|
408 int securityResult = readU32();
|
|
0
|
409
|
|
4
|
410 switch (securityResult) {
|
|
|
411 case VncAuthOK:
|
|
|
412 System.out.println(authType + ": success");
|
|
|
413 break;
|
|
|
414 case VncAuthFailed:
|
|
|
415 if (clientMinor >= 8)
|
|
|
416 readConnFailedReason();
|
|
|
417 throw new Exception(authType + ": failed");
|
|
|
418 case VncAuthTooMany:
|
|
|
419 throw new Exception(authType + ": failed, too many tries");
|
|
|
420 default:
|
|
|
421 throw new Exception(authType + ": unknown result " + securityResult);
|
|
|
422 }
|
|
|
423 }
|
|
0
|
424
|
|
4
|
425 //
|
|
|
426 // Read the string describing the reason for a connection failure,
|
|
|
427 // and throw an exception.
|
|
|
428 //
|
|
0
|
429
|
|
4
|
430 void readConnFailedReason() throws Exception {
|
|
|
431 int reasonLen = readU32();
|
|
|
432 byte[] reason = new byte[reasonLen];
|
|
|
433 readFully(reason);
|
|
|
434 throw new Exception(new String(reason));
|
|
|
435 }
|
|
0
|
436
|
|
4
|
437 //
|
|
|
438 // Initialize capability lists (TightVNC protocol extensions).
|
|
|
439 //
|
|
0
|
440
|
|
4
|
441 void initCapabilities() {
|
|
|
442 tunnelCaps = new CapsContainer();
|
|
|
443 authCaps = new CapsContainer();
|
|
|
444 serverMsgCaps = new CapsContainer();
|
|
|
445 clientMsgCaps = new CapsContainer();
|
|
|
446 encodingCaps = new CapsContainer();
|
|
0
|
447
|
|
4
|
448 // Supported authentication methods
|
|
|
449 authCaps.add(AuthNone, StandardVendor, SigAuthNone, "No authentication");
|
|
|
450 authCaps.add(AuthVNC, StandardVendor, SigAuthVNC,
|
|
|
451 "Standard VNC password authentication");
|
|
0
|
452
|
|
4
|
453 // Supported non-standard server-to-client messages
|
|
|
454 // [NONE]
|
|
|
455
|
|
|
456 // Supported non-standard client-to-server messages
|
|
|
457 // [NONE]
|
|
0
|
458
|
|
4
|
459 // Supported encoding types
|
|
|
460 encodingCaps.add(EncodingCopyRect, StandardVendor, SigEncodingCopyRect,
|
|
|
461 "Standard CopyRect encoding");
|
|
|
462 encodingCaps.add(EncodingRRE, StandardVendor, SigEncodingRRE,
|
|
|
463 "Standard RRE encoding");
|
|
|
464 encodingCaps.add(EncodingCoRRE, StandardVendor, SigEncodingCoRRE,
|
|
|
465 "Standard CoRRE encoding");
|
|
|
466 encodingCaps.add(EncodingHextile, StandardVendor, SigEncodingHextile,
|
|
|
467 "Standard Hextile encoding");
|
|
|
468 encodingCaps.add(EncodingZRLE, StandardVendor, SigEncodingZRLE,
|
|
|
469 "Standard ZRLE encoding");
|
|
|
470 encodingCaps.add(EncodingZlib, TridiaVncVendor, SigEncodingZlib,
|
|
|
471 "Zlib encoding");
|
|
|
472 encodingCaps.add(EncodingTight, TightVncVendor, SigEncodingTight,
|
|
|
473 "Tight encoding");
|
|
0
|
474
|
|
4
|
475 // Supported pseudo-encoding types
|
|
|
476 encodingCaps.add(EncodingCompressLevel0, TightVncVendor,
|
|
|
477 SigEncodingCompressLevel0, "Compression level");
|
|
|
478 encodingCaps.add(EncodingQualityLevel0, TightVncVendor,
|
|
|
479 SigEncodingQualityLevel0, "JPEG quality level");
|
|
|
480 encodingCaps.add(EncodingXCursor, TightVncVendor, SigEncodingXCursor,
|
|
|
481 "X-style cursor shape update");
|
|
|
482 encodingCaps.add(EncodingRichCursor, TightVncVendor,
|
|
|
483 SigEncodingRichCursor, "Rich-color cursor shape update");
|
|
|
484 encodingCaps.add(EncodingPointerPos, TightVncVendor,
|
|
|
485 SigEncodingPointerPos, "Pointer position update");
|
|
|
486 encodingCaps.add(EncodingLastRect, TightVncVendor, SigEncodingLastRect,
|
|
|
487 "LastRect protocol extension");
|
|
|
488 encodingCaps.add(EncodingNewFBSize, TightVncVendor,
|
|
|
489 SigEncodingNewFBSize, "Framebuffer size change");
|
|
|
490 }
|
|
0
|
491
|
|
4
|
492 //
|
|
|
493 // Setup tunneling (TightVNC protocol extensions)
|
|
|
494 //
|
|
0
|
495
|
|
4
|
496 void setupTunneling() throws IOException {
|
|
|
497 int nTunnelTypes = readU32();
|
|
|
498 if (nTunnelTypes != 0) {
|
|
|
499 readCapabilityList(tunnelCaps, nTunnelTypes);
|
|
0
|
500
|
|
4
|
501 // We don't support tunneling yet.
|
|
|
502 writeInt(NoTunneling);
|
|
|
503 }
|
|
|
504 }
|
|
0
|
505
|
|
4
|
506 //
|
|
|
507 // Negotiate authentication scheme (TightVNC protocol extensions)
|
|
|
508 //
|
|
|
509
|
|
|
510 int negotiateAuthenticationTight() throws Exception {
|
|
|
511 int nAuthTypes = readU32();
|
|
|
512 if (nAuthTypes == 0)
|
|
|
513 return AuthNone;
|
|
0
|
514
|
|
4
|
515 readCapabilityList(authCaps, nAuthTypes);
|
|
|
516 for (int i = 0; i < authCaps.numEnabled(); i++) {
|
|
|
517 int authType = authCaps.getByOrder(i);
|
|
|
518 if (authType == AuthNone || authType == AuthVNC) {
|
|
|
519 writeInt(authType);
|
|
|
520 return authType;
|
|
|
521 }
|
|
|
522 }
|
|
|
523 throw new Exception("No suitable authentication scheme found");
|
|
|
524 }
|
|
|
525
|
|
|
526 //
|
|
|
527 // Read a capability list (TightVNC protocol extensions)
|
|
|
528 //
|
|
0
|
529
|
|
4
|
530 void readCapabilityList(CapsContainer caps, int count) throws IOException {
|
|
|
531 int code;
|
|
|
532 byte[] vendor = new byte[4];
|
|
|
533 byte[] name = new byte[8];
|
|
|
534 for (int i = 0; i < count; i++) {
|
|
|
535 code = readU32();
|
|
|
536 readFully(vendor);
|
|
|
537 readFully(name);
|
|
|
538 caps.enable(new CapabilityInfo(code, vendor, name));
|
|
|
539 }
|
|
|
540 }
|
|
0
|
541
|
|
4
|
542 //
|
|
|
543 // Write a 32-bit integer into the output stream.
|
|
|
544 //
|
|
0
|
545
|
|
4
|
546 void writeInt(int value) throws IOException {
|
|
|
547 byte[] b = new byte[4];
|
|
|
548 b[0] = (byte) ((value >> 24) & 0xff);
|
|
|
549 b[1] = (byte) ((value >> 16) & 0xff);
|
|
|
550 b[2] = (byte) ((value >> 8) & 0xff);
|
|
|
551 b[3] = (byte) (value & 0xff);
|
|
|
552 os.write(b);
|
|
|
553 }
|
|
0
|
554
|
|
4
|
555 //
|
|
|
556 // Write the client initialisation message
|
|
|
557 //
|
|
0
|
558
|
|
4
|
559 void writeClientInit() throws IOException {
|
|
13
|
560 /*
|
|
4
|
561 if (viewer.options.shareDesktop) {
|
|
|
562 os.write(1);
|
|
13
|
563 */
|
|
4
|
564 os.write(0);
|
|
13
|
565
|
|
|
566 // viewer.options.disableShareDesktop();
|
|
4
|
567 }
|
|
0
|
568
|
|
4
|
569 //
|
|
|
570 // Read the server initialisation message
|
|
|
571 //
|
|
|
572
|
|
|
573 String desktopName;
|
|
|
574 int framebufferWidth, framebufferHeight;
|
|
|
575 int bitsPerPixel, depth;
|
|
|
576 boolean bigEndian, trueColour;
|
|
|
577 int redMax, greenMax, blueMax, redShift, greenShift, blueShift;
|
|
0
|
578
|
|
4
|
579 void readServerInit() throws IOException {
|
|
8
|
580
|
|
4
|
581 framebufferWidth = readU16();
|
|
|
582 framebufferHeight = readU16();
|
|
|
583 bitsPerPixel = readU8();
|
|
|
584 depth = readU8();
|
|
|
585 bigEndian = (readU8() != 0);
|
|
|
586 trueColour = (readU8() != 0);
|
|
|
587 redMax = readU16();
|
|
|
588 greenMax = readU16();
|
|
|
589 blueMax = readU16();
|
|
|
590 redShift = readU8();
|
|
|
591 greenShift = readU8();
|
|
|
592 blueShift = readU8();
|
|
|
593 byte[] pad = new byte[3];
|
|
|
594 readFully(pad);
|
|
|
595 int nameLength = readU32();
|
|
|
596 byte[] name = new byte[nameLength];
|
|
|
597 readFully(name);
|
|
|
598 desktopName = new String(name);
|
|
0
|
599
|
|
4
|
600 // Read interaction capabilities (TightVNC protocol extensions)
|
|
|
601 if (protocolTightVNC) {
|
|
|
602 int nServerMessageTypes = readU16();
|
|
|
603 int nClientMessageTypes = readU16();
|
|
|
604 int nEncodingTypes = readU16();
|
|
|
605 readU16();
|
|
|
606 readCapabilityList(serverMsgCaps, nServerMessageTypes);
|
|
|
607 readCapabilityList(clientMsgCaps, nClientMessageTypes);
|
|
|
608 readCapabilityList(encodingCaps, nEncodingTypes);
|
|
|
609 }
|
|
0
|
610
|
|
4
|
611 inNormalProtocol = true;
|
|
|
612 }
|
|
0
|
613
|
|
4
|
614 //
|
|
|
615 // Create session file and write initial protocol messages into it.
|
|
|
616 //
|
|
0
|
617
|
|
4
|
618 void startSession(String fname) throws IOException {
|
|
|
619 rec = new SessionRecorder(fname);
|
|
|
620 rec.writeHeader();
|
|
|
621 rec.write(versionMsg_3_3.getBytes());
|
|
|
622 rec.writeIntBE(SecTypeNone);
|
|
|
623 rec.writeShortBE(framebufferWidth);
|
|
|
624 rec.writeShortBE(framebufferHeight);
|
|
|
625 byte[] fbsServerInitMsg = { 32, 24, 0, 1, 0, (byte) 0xFF, 0,
|
|
|
626 (byte) 0xFF, 0, (byte) 0xFF, 16, 8, 0, 0, 0, 0 };
|
|
|
627 rec.write(fbsServerInitMsg);
|
|
|
628 rec.writeIntBE(desktopName.length());
|
|
|
629 rec.write(desktopName.getBytes());
|
|
|
630 numUpdatesInSession = 0;
|
|
0
|
631
|
|
4
|
632 // FIXME: If there were e.g. ZRLE updates only, that should not
|
|
|
633 // affect recording of Zlib and Tight updates. So, actually
|
|
|
634 // we should maintain separate flags for Zlib, ZRLE and
|
|
|
635 // Tight, instead of one ``wereZlibUpdates'' variable.
|
|
|
636 //
|
|
|
637 if (wereZlibUpdates)
|
|
|
638 recordFromBeginning = false;
|
|
|
639
|
|
|
640 zlibWarningShown = false;
|
|
|
641 tightWarningShown = false;
|
|
|
642 }
|
|
|
643
|
|
|
644 //
|
|
|
645 // Close session file.
|
|
|
646 //
|
|
0
|
647
|
|
4
|
648 void closeSession() throws IOException {
|
|
|
649 if (rec != null) {
|
|
|
650 rec.close();
|
|
|
651 rec = null;
|
|
|
652 }
|
|
|
653 }
|
|
|
654
|
|
|
655 //
|
|
|
656 // Set new framebuffer size
|
|
|
657 //
|
|
0
|
658
|
|
4
|
659 void setFramebufferSize(int width, int height) {
|
|
|
660 framebufferWidth = width;
|
|
|
661 framebufferHeight = height;
|
|
|
662 }
|
|
0
|
663
|
|
4
|
664 //
|
|
|
665 // Read the server message type
|
|
|
666 //
|
|
|
667
|
|
|
668 int readServerMessageType() throws IOException {
|
|
|
669 int msgType = readU8();
|
|
0
|
670
|
|
4
|
671 // If the session is being recorded:
|
|
|
672 if (rec != null) {
|
|
|
673 if (msgType == Bell) { // Save Bell messages in session files.
|
|
|
674 rec.writeByte(msgType);
|
|
|
675 if (numUpdatesInSession > 0)
|
|
|
676 rec.flush();
|
|
|
677 }
|
|
|
678 }
|
|
0
|
679
|
|
4
|
680 return msgType;
|
|
|
681 }
|
|
|
682
|
|
|
683 //
|
|
|
684 // Read a FramebufferUpdate message
|
|
|
685 //
|
|
0
|
686
|
|
4
|
687 int updateNRects;
|
|
|
688
|
|
|
689 void readFramebufferUpdate() throws IOException {
|
|
|
690 skipBytes(1);
|
|
|
691 updateNRects = readU16();
|
|
|
692 // System.out.println(updateNRects);
|
|
0
|
693
|
|
4
|
694 // If the session is being recorded:
|
|
|
695 if (rec != null) {
|
|
|
696 rec.writeByte(FramebufferUpdate);
|
|
|
697 rec.writeByte(0);
|
|
|
698 rec.writeShortBE(updateNRects);
|
|
|
699 }
|
|
0
|
700
|
|
4
|
701 numUpdatesInSession++;
|
|
|
702 }
|
|
0
|
703
|
|
4
|
704 // Read a FramebufferUpdate rectangle header
|
|
0
|
705
|
|
4
|
706 int updateRectX, updateRectY, updateRectW, updateRectH, updateRectEncoding;
|
|
0
|
707
|
|
4
|
708 void readFramebufferUpdateRectHdr() throws Exception {
|
|
|
709 updateRectX = readU16();
|
|
|
710 updateRectY = readU16();
|
|
|
711 updateRectW = readU16();
|
|
|
712 updateRectH = readU16();
|
|
|
713 updateRectEncoding = readU32();
|
|
|
714 // System.out.println("readU16&32");
|
|
0
|
715
|
|
4
|
716 if (updateRectEncoding == EncodingZlib
|
|
|
717 || updateRectEncoding == EncodingZRLE
|
|
|
718 || updateRectEncoding == EncodingTight)
|
|
|
719 wereZlibUpdates = true;
|
|
0
|
720
|
|
4
|
721 // If the session is being recorded:
|
|
|
722 if (rec != null) {
|
|
|
723 if (numUpdatesInSession > 1)
|
|
|
724 rec.flush(); // Flush the output on each rectangle.
|
|
|
725 rec.writeShortBE(updateRectX);
|
|
|
726 rec.writeShortBE(updateRectY);
|
|
|
727 rec.writeShortBE(updateRectW);
|
|
|
728 rec.writeShortBE(updateRectH);
|
|
|
729 if (updateRectEncoding == EncodingZlib && !recordFromBeginning) {
|
|
|
730 // Here we cannot write Zlib-encoded rectangles because the
|
|
|
731 // decoder won't be able to reproduce zlib stream state.
|
|
|
732 if (!zlibWarningShown) {
|
|
|
733 System.out.println("Warning: Raw encoding will be used "
|
|
|
734 + "instead of Zlib in recorded session.");
|
|
|
735 zlibWarningShown = true;
|
|
|
736 }
|
|
|
737 rec.writeIntBE(EncodingRaw);
|
|
|
738 } else {
|
|
|
739 rec.writeIntBE(updateRectEncoding);
|
|
|
740 if (updateRectEncoding == EncodingTight && !recordFromBeginning
|
|
|
741 && !tightWarningShown) {
|
|
|
742 System.out.println("Warning: Re-compressing Tight-encoded "
|
|
|
743 + "updates for session recording.");
|
|
|
744 tightWarningShown = true;
|
|
|
745 }
|
|
|
746 }
|
|
|
747 }
|
|
0
|
748
|
|
4
|
749 if (updateRectEncoding < 0 || updateRectEncoding > MaxNormalEncoding)
|
|
|
750 return;
|
|
0
|
751
|
|
4
|
752 if (updateRectX + updateRectW > framebufferWidth
|
|
|
753 || updateRectY + updateRectH > framebufferHeight) {
|
|
|
754 throw new Exception("Framebuffer update rectangle too large: "
|
|
|
755 + updateRectW + "x" + updateRectH + " at (" + updateRectX
|
|
|
756 + "," + updateRectY + ")");
|
|
|
757 }
|
|
|
758 }
|
|
0
|
759
|
|
4
|
760 // Read CopyRect source X and Y.
|
|
|
761
|
|
|
762 int copyRectSrcX, copyRectSrcY;
|
|
|
763
|
|
|
764 void readCopyRect() throws IOException {
|
|
|
765 copyRectSrcX = readU16();
|
|
|
766 copyRectSrcY = readU16();
|
|
0
|
767
|
|
4
|
768 // If the session is being recorded:
|
|
|
769 if (rec != null) {
|
|
|
770 rec.writeShortBE(copyRectSrcX);
|
|
|
771 rec.writeShortBE(copyRectSrcY);
|
|
|
772 }
|
|
0
|
773 }
|
|
4
|
774
|
|
|
775 //
|
|
|
776 // Read a ServerCutText message
|
|
|
777 //
|
|
|
778
|
|
|
779 String readServerCutText() throws IOException {
|
|
|
780 skipBytes(3);
|
|
|
781 int len = readU32();
|
|
|
782 byte[] text = new byte[len];
|
|
|
783 readFully(text);
|
|
|
784 return new String(text);
|
|
0
|
785 }
|
|
4
|
786
|
|
|
787 //
|
|
|
788 // Read an integer in compact representation (1..3 bytes).
|
|
|
789 // Such format is used as a part of the Tight encoding.
|
|
|
790 // Also, this method records data if session recording is active and
|
|
|
791 // the viewer's recordFromBeginning variable is set to true.
|
|
|
792 //
|
|
0
|
793
|
|
4
|
794 int readCompactLen() throws IOException {
|
|
|
795 int[] portion = new int[3];
|
|
|
796 portion[0] = readU8();
|
|
|
797 int byteCount = 1;
|
|
|
798 int len = portion[0] & 0x7F;
|
|
|
799 if ((portion[0] & 0x80) != 0) {
|
|
|
800 portion[1] = readU8();
|
|
|
801 byteCount++;
|
|
|
802 len |= (portion[1] & 0x7F) << 7;
|
|
|
803 if ((portion[1] & 0x80) != 0) {
|
|
|
804 portion[2] = readU8();
|
|
|
805 byteCount++;
|
|
|
806 len |= (portion[2] & 0xFF) << 14;
|
|
|
807 }
|
|
|
808 }
|
|
0
|
809
|
|
4
|
810 if (rec != null && recordFromBeginning)
|
|
|
811 for (int i = 0; i < byteCount; i++)
|
|
|
812 rec.writeByte(portion[i]);
|
|
0
|
813
|
|
4
|
814 return len;
|
|
|
815 }
|
|
0
|
816
|
|
4
|
817 //
|
|
|
818 // Write a FramebufferUpdateRequest message
|
|
|
819 //
|
|
|
820
|
|
|
821 void writeFramebufferUpdateRequest(int x, int y, int w, int h,
|
|
|
822 boolean incremental) throws IOException {
|
|
|
823 byte[] b = new byte[10];
|
|
0
|
824
|
|
4
|
825 b[0] = (byte) FramebufferUpdateRequest;
|
|
|
826 b[1] = (byte) (incremental ? 1 : 0);
|
|
|
827 b[2] = (byte) ((x >> 8) & 0xff);
|
|
|
828 b[3] = (byte) (x & 0xff);
|
|
|
829 b[4] = (byte) ((y >> 8) & 0xff);
|
|
|
830 b[5] = (byte) (y & 0xff);
|
|
|
831 b[6] = (byte) ((w >> 8) & 0xff);
|
|
|
832 b[7] = (byte) (w & 0xff);
|
|
|
833 b[8] = (byte) ((h >> 8) & 0xff);
|
|
|
834 b[9] = (byte) (h & 0xff);
|
|
0
|
835
|
|
4
|
836 os.write(b);
|
|
|
837 }
|
|
|
838
|
|
|
839 //
|
|
|
840 // Write a SetPixelFormat message
|
|
|
841 //
|
|
|
842
|
|
|
843 void writeSetPixelFormat(int bitsPerPixel, int depth, boolean bigEndian,
|
|
|
844 boolean trueColour, int redMax, int greenMax, int blueMax,
|
|
|
845 int redShift, int greenShift, int blueShift) throws IOException {
|
|
|
846 byte[] b = new byte[20];
|
|
0
|
847
|
|
4
|
848 b[0] = (byte) SetPixelFormat;
|
|
|
849 b[4] = (byte) bitsPerPixel;
|
|
|
850 b[5] = (byte) depth;
|
|
|
851 b[6] = (byte) (bigEndian ? 1 : 0);
|
|
|
852 b[7] = (byte) (trueColour ? 1 : 0);
|
|
|
853 b[8] = (byte) ((redMax >> 8) & 0xff);
|
|
|
854 b[9] = (byte) (redMax & 0xff);
|
|
|
855 b[10] = (byte) ((greenMax >> 8) & 0xff);
|
|
|
856 b[11] = (byte) (greenMax & 0xff);
|
|
|
857 b[12] = (byte) ((blueMax >> 8) & 0xff);
|
|
|
858 b[13] = (byte) (blueMax & 0xff);
|
|
|
859 b[14] = (byte) redShift;
|
|
|
860 b[15] = (byte) greenShift;
|
|
|
861 b[16] = (byte) blueShift;
|
|
0
|
862
|
|
4
|
863 os.write(b);
|
|
|
864 }
|
|
0
|
865
|
|
4
|
866 //
|
|
|
867 // Write a FixColourMapEntries message. The values in the red, green and
|
|
|
868 // blue arrays are from 0 to 65535.
|
|
|
869 //
|
|
0
|
870
|
|
4
|
871 void writeFixColourMapEntries(int firstColour, int nColours, int[] red,
|
|
|
872 int[] green, int[] blue) throws IOException {
|
|
|
873 byte[] b = new byte[6 + nColours * 6];
|
|
0
|
874
|
|
4
|
875 b[0] = (byte) FixColourMapEntries;
|
|
|
876 b[2] = (byte) ((firstColour >> 8) & 0xff);
|
|
|
877 b[3] = (byte) (firstColour & 0xff);
|
|
|
878 b[4] = (byte) ((nColours >> 8) & 0xff);
|
|
|
879 b[5] = (byte) (nColours & 0xff);
|
|
0
|
880
|
|
4
|
881 for (int i = 0; i < nColours; i++) {
|
|
|
882 b[6 + i * 6] = (byte) ((red[i] >> 8) & 0xff);
|
|
|
883 b[6 + i * 6 + 1] = (byte) (red[i] & 0xff);
|
|
|
884 b[6 + i * 6 + 2] = (byte) ((green[i] >> 8) & 0xff);
|
|
|
885 b[6 + i * 6 + 3] = (byte) (green[i] & 0xff);
|
|
|
886 b[6 + i * 6 + 4] = (byte) ((blue[i] >> 8) & 0xff);
|
|
|
887 b[6 + i * 6 + 5] = (byte) (blue[i] & 0xff);
|
|
|
888 }
|
|
0
|
889
|
|
4
|
890 os.write(b);
|
|
|
891 }
|
|
0
|
892
|
|
4
|
893 //
|
|
|
894 // Write a SetEncodings message
|
|
|
895 //
|
|
|
896
|
|
|
897 void writeSetEncodings(int[] encs, int len) throws IOException {
|
|
|
898 byte[] b = new byte[4 + 4 * len];
|
|
0
|
899
|
|
4
|
900 b[0] = (byte) SetEncodings;
|
|
|
901 b[2] = (byte) ((len >> 8) & 0xff);
|
|
|
902 b[3] = (byte) (len & 0xff);
|
|
0
|
903
|
|
4
|
904 for (int i = 0; i < len; i++) {
|
|
|
905 b[4 + 4 * i] = (byte) ((encs[i] >> 24) & 0xff);
|
|
|
906 b[5 + 4 * i] = (byte) ((encs[i] >> 16) & 0xff);
|
|
|
907 b[6 + 4 * i] = (byte) ((encs[i] >> 8) & 0xff);
|
|
|
908 b[7 + 4 * i] = (byte) (encs[i] & 0xff);
|
|
|
909 }
|
|
|
910
|
|
|
911 os.write(b);
|
|
|
912 }
|
|
|
913
|
|
|
914 //
|
|
|
915 // Write a ClientCutText message
|
|
|
916 //
|
|
|
917
|
|
|
918 void writeClientCutText(String text) throws IOException {
|
|
|
919 byte[] b = new byte[8 + text.length()];
|
|
0
|
920
|
|
4
|
921 b[0] = (byte) ClientCutText;
|
|
|
922 b[4] = (byte) ((text.length() >> 24) & 0xff);
|
|
|
923 b[5] = (byte) ((text.length() >> 16) & 0xff);
|
|
|
924 b[6] = (byte) ((text.length() >> 8) & 0xff);
|
|
|
925 b[7] = (byte) (text.length() & 0xff);
|
|
0
|
926
|
|
4
|
927 System.arraycopy(text.getBytes(), 0, b, 8, text.length());
|
|
|
928
|
|
|
929 os.write(b);
|
|
|
930 }
|
|
0
|
931
|
|
4
|
932 //
|
|
|
933 // A buffer for putting pointer and keyboard events before being sent. This
|
|
|
934 // is to ensure that multiple RFB events generated from a single Java Event
|
|
|
935 // will all be sent in a single network packet. The maximum possible
|
|
|
936 // length is 4 modifier down events, a single key event followed by 4
|
|
|
937 // modifier up events i.e. 9 key events or 72 bytes.
|
|
|
938 //
|
|
0
|
939
|
|
4
|
940 byte[] eventBuf = new byte[72];
|
|
|
941 int eventBufLen;
|
|
0
|
942
|
|
4
|
943 // Useful shortcuts for modifier masks.
|
|
|
944
|
|
|
945 final static int CTRL_MASK = InputEvent.CTRL_MASK;
|
|
|
946 final static int SHIFT_MASK = InputEvent.SHIFT_MASK;
|
|
|
947 final static int META_MASK = InputEvent.META_MASK;
|
|
|
948 final static int ALT_MASK = InputEvent.ALT_MASK;
|
|
|
949
|
|
|
950 //
|
|
|
951 // Write a pointer event message. We may need to send modifier key events
|
|
|
952 // around it to set the correct modifier state.
|
|
|
953 //
|
|
0
|
954
|
|
4
|
955 int pointerMask = 0;
|
|
0
|
956
|
|
4
|
957 void writePointerEvent(MouseEvent evt) throws IOException {
|
|
|
958 int modifiers = evt.getModifiers();
|
|
0
|
959
|
|
4
|
960 int mask2 = 2;
|
|
|
961 int mask3 = 4;
|
|
|
962 if (viewer.options.reverseMouseButtons2And3) {
|
|
|
963 mask2 = 4;
|
|
|
964 mask3 = 2;
|
|
|
965 }
|
|
0
|
966
|
|
4
|
967 // Note: For some reason, AWT does not set BUTTON1_MASK on left
|
|
|
968 // button presses. Here we think that it was the left button if
|
|
|
969 // modifiers do not include BUTTON2_MASK or BUTTON3_MASK.
|
|
0
|
970
|
|
4
|
971 if (evt.getID() == MouseEvent.MOUSE_PRESSED) {
|
|
|
972 if ((modifiers & InputEvent.BUTTON2_MASK) != 0) {
|
|
|
973 pointerMask = mask2;
|
|
|
974 modifiers &= ~ALT_MASK;
|
|
|
975 } else if ((modifiers & InputEvent.BUTTON3_MASK) != 0) {
|
|
|
976 pointerMask = mask3;
|
|
|
977 modifiers &= ~META_MASK;
|
|
|
978 } else {
|
|
|
979 pointerMask = 1;
|
|
|
980 }
|
|
|
981 } else if (evt.getID() == MouseEvent.MOUSE_RELEASED) {
|
|
|
982 pointerMask = 0;
|
|
|
983 if ((modifiers & InputEvent.BUTTON2_MASK) != 0) {
|
|
|
984 modifiers &= ~ALT_MASK;
|
|
|
985 } else if ((modifiers & InputEvent.BUTTON3_MASK) != 0) {
|
|
|
986 modifiers &= ~META_MASK;
|
|
|
987 }
|
|
|
988 }
|
|
0
|
989
|
|
4
|
990 eventBufLen = 0;
|
|
|
991 writeModifierKeyEvents(modifiers);
|
|
|
992
|
|
|
993 int x = evt.getX();
|
|
|
994 int y = evt.getY();
|
|
0
|
995
|
|
4
|
996 if (x < 0)
|
|
|
997 x = 0;
|
|
|
998 if (y < 0)
|
|
|
999 y = 0;
|
|
0
|
1000
|
|
4
|
1001 eventBuf[eventBufLen++] = (byte) PointerEvent;
|
|
|
1002 eventBuf[eventBufLen++] = (byte) pointerMask;
|
|
|
1003 eventBuf[eventBufLen++] = (byte) ((x >> 8) & 0xff);
|
|
|
1004 eventBuf[eventBufLen++] = (byte) (x & 0xff);
|
|
|
1005 eventBuf[eventBufLen++] = (byte) ((y >> 8) & 0xff);
|
|
|
1006 eventBuf[eventBufLen++] = (byte) (y & 0xff);
|
|
0
|
1007
|
|
4
|
1008 //
|
|
|
1009 // Always release all modifiers after an "up" event
|
|
|
1010 //
|
|
0
|
1011
|
|
4
|
1012 if (pointerMask == 0) {
|
|
|
1013 writeModifierKeyEvents(0);
|
|
|
1014 }
|
|
0
|
1015
|
|
4
|
1016 os.write(eventBuf, 0, eventBufLen);
|
|
|
1017 }
|
|
0
|
1018
|
|
4
|
1019 //
|
|
|
1020 // Write a key event message. We may need to send modifier key events
|
|
|
1021 // around it to set the correct modifier state. Also we need to translate
|
|
|
1022 // from the Java key values to the X keysym values used by the RFB protocol.
|
|
|
1023 //
|
|
|
1024
|
|
|
1025 void writeKeyEvent(KeyEvent evt) throws IOException {
|
|
|
1026
|
|
|
1027 int keyChar = evt.getKeyChar();
|
|
0
|
1028
|
|
4
|
1029 //
|
|
|
1030 // Ignore event if only modifiers were pressed.
|
|
|
1031 //
|
|
|
1032
|
|
|
1033 // Some JVMs return 0 instead of CHAR_UNDEFINED in getKeyChar().
|
|
|
1034 if (keyChar == 0)
|
|
|
1035 keyChar = KeyEvent.CHAR_UNDEFINED;
|
|
0
|
1036
|
|
4
|
1037 if (keyChar == KeyEvent.CHAR_UNDEFINED) {
|
|
|
1038 int code = evt.getKeyCode();
|
|
|
1039 if (code == KeyEvent.VK_CONTROL || code == KeyEvent.VK_SHIFT
|
|
|
1040 || code == KeyEvent.VK_META || code == KeyEvent.VK_ALT)
|
|
|
1041 return;
|
|
|
1042 }
|
|
0
|
1043
|
|
4
|
1044 //
|
|
|
1045 // Key press or key release?
|
|
|
1046 //
|
|
|
1047
|
|
|
1048 boolean down = (evt.getID() == KeyEvent.KEY_PRESSED);
|
|
|
1049
|
|
|
1050 int key;
|
|
|
1051 if (evt.isActionKey()) {
|
|
0
|
1052
|
|
4
|
1053 //
|
|
|
1054 // An action key should be one of the following.
|
|
|
1055 // If not then just ignore the event.
|
|
|
1056 //
|
|
0
|
1057
|
|
4
|
1058 switch (evt.getKeyCode()) {
|
|
|
1059 case KeyEvent.VK_HOME:
|
|
|
1060 key = 0xff50;
|
|
|
1061 break;
|
|
|
1062 case KeyEvent.VK_LEFT:
|
|
|
1063 key = 0xff51;
|
|
|
1064 break;
|
|
|
1065 case KeyEvent.VK_UP:
|
|
|
1066 key = 0xff52;
|
|
|
1067 break;
|
|
|
1068 case KeyEvent.VK_RIGHT:
|
|
|
1069 key = 0xff53;
|
|
|
1070 break;
|
|
|
1071 case KeyEvent.VK_DOWN:
|
|
|
1072 key = 0xff54;
|
|
|
1073 break;
|
|
|
1074 case KeyEvent.VK_PAGE_UP:
|
|
|
1075 key = 0xff55;
|
|
|
1076 break;
|
|
|
1077 case KeyEvent.VK_PAGE_DOWN:
|
|
|
1078 key = 0xff56;
|
|
|
1079 break;
|
|
|
1080 case KeyEvent.VK_END:
|
|
|
1081 key = 0xff57;
|
|
|
1082 break;
|
|
|
1083 case KeyEvent.VK_INSERT:
|
|
|
1084 key = 0xff63;
|
|
|
1085 break;
|
|
|
1086 case KeyEvent.VK_F1:
|
|
|
1087 key = 0xffbe;
|
|
|
1088 break;
|
|
|
1089 case KeyEvent.VK_F2:
|
|
|
1090 key = 0xffbf;
|
|
|
1091 break;
|
|
|
1092 case KeyEvent.VK_F3:
|
|
|
1093 key = 0xffc0;
|
|
|
1094 break;
|
|
|
1095 case KeyEvent.VK_F4:
|
|
|
1096 key = 0xffc1;
|
|
|
1097 break;
|
|
|
1098 case KeyEvent.VK_F5:
|
|
|
1099 key = 0xffc2;
|
|
|
1100 break;
|
|
|
1101 case KeyEvent.VK_F6:
|
|
|
1102 key = 0xffc3;
|
|
|
1103 break;
|
|
|
1104 case KeyEvent.VK_F7:
|
|
|
1105 key = 0xffc4;
|
|
|
1106 break;
|
|
|
1107 case KeyEvent.VK_F8:
|
|
|
1108 key = 0xffc5;
|
|
|
1109 break;
|
|
|
1110 case KeyEvent.VK_F9:
|
|
|
1111 key = 0xffc6;
|
|
|
1112 break;
|
|
|
1113 case KeyEvent.VK_F10:
|
|
|
1114 key = 0xffc7;
|
|
|
1115 break;
|
|
|
1116 case KeyEvent.VK_F11:
|
|
|
1117 key = 0xffc8;
|
|
|
1118 break;
|
|
|
1119 case KeyEvent.VK_F12:
|
|
|
1120 key = 0xffc9;
|
|
|
1121 break;
|
|
|
1122 default:
|
|
|
1123 return;
|
|
|
1124 }
|
|
0
|
1125
|
|
4
|
1126 } else {
|
|
0
|
1127
|
|
4
|
1128 //
|
|
|
1129 // A "normal" key press. Ordinary ASCII characters go straight
|
|
|
1130 // through.
|
|
|
1131 // For CTRL-<letter>, CTRL is sent separately so just send <letter>.
|
|
|
1132 // Backspace, tab, return, escape and delete have special keysyms.
|
|
|
1133 // Anything else we ignore.
|
|
|
1134 //
|
|
0
|
1135
|
|
4
|
1136 key = keyChar;
|
|
0
|
1137
|
|
4
|
1138 if (key < 0x20) {
|
|
|
1139 if (evt.isControlDown()) {
|
|
|
1140 key += 0x60;
|
|
|
1141 } else {
|
|
|
1142 switch (key) {
|
|
|
1143 case KeyEvent.VK_BACK_SPACE:
|
|
|
1144 key = 0xff08;
|
|
|
1145 break;
|
|
|
1146 case KeyEvent.VK_TAB:
|
|
|
1147 key = 0xff09;
|
|
|
1148 break;
|
|
|
1149 case KeyEvent.VK_ENTER:
|
|
|
1150 key = 0xff0d;
|
|
|
1151 break;
|
|
|
1152 case KeyEvent.VK_ESCAPE:
|
|
|
1153 key = 0xff1b;
|
|
|
1154 break;
|
|
|
1155 }
|
|
|
1156 }
|
|
|
1157 } else if (key == 0x7f) {
|
|
|
1158 // Delete
|
|
|
1159 key = 0xffff;
|
|
|
1160 } else if (key > 0xff) {
|
|
|
1161 // JDK1.1 on X incorrectly passes some keysyms straight through,
|
|
|
1162 // so we do too. JDK1.1.4 seems to have fixed this.
|
|
|
1163 // The keysyms passed are 0xff00 .. XK_BackSpace .. XK_Delete
|
|
|
1164 // Also, we pass through foreign currency keysyms
|
|
|
1165 // (0x20a0..0x20af).
|
|
|
1166 if ((key < 0xff00 || key > 0xffff)
|
|
|
1167 && !(key >= 0x20a0 && key <= 0x20af))
|
|
|
1168 return;
|
|
|
1169 }
|
|
|
1170 }
|
|
0
|
1171
|
|
4
|
1172 // Fake keyPresses for keys that only generates keyRelease events
|
|
|
1173 if ((key == 0xe5) || (key == 0xc5) || // XK_aring / XK_Aring
|
|
|
1174 (key == 0xe4) || (key == 0xc4) || // XK_adiaeresis /
|
|
|
1175 // XK_Adiaeresis
|
|
|
1176 (key == 0xf6) || (key == 0xd6) || // XK_odiaeresis /
|
|
|
1177 // XK_Odiaeresis
|
|
|
1178 (key == 0xa7) || (key == 0xbd) || // XK_section / XK_onehalf
|
|
|
1179 (key == 0xa3)) { // XK_sterling
|
|
|
1180 // Make sure we do not send keypress events twice on platforms
|
|
|
1181 // with correct JVMs (those that actually report KeyPress for all
|
|
|
1182 // keys)
|
|
|
1183 if (down)
|
|
|
1184 brokenKeyPressed = true;
|
|
0
|
1185
|
|
4
|
1186 if (!down && !brokenKeyPressed) {
|
|
|
1187 // We've got a release event for this key, but haven't received
|
|
|
1188 // a press. Fake it.
|
|
|
1189 eventBufLen = 0;
|
|
|
1190 writeModifierKeyEvents(evt.getModifiers());
|
|
|
1191 writeKeyEvent(key, true);
|
|
|
1192 os.write(eventBuf, 0, eventBufLen);
|
|
|
1193 }
|
|
0
|
1194
|
|
4
|
1195 if (!down)
|
|
|
1196 brokenKeyPressed = false;
|
|
|
1197 }
|
|
0
|
1198
|
|
4
|
1199 eventBufLen = 0;
|
|
|
1200 writeModifierKeyEvents(evt.getModifiers());
|
|
|
1201 writeKeyEvent(key, down);
|
|
0
|
1202
|
|
4
|
1203 // Always release all modifiers after an "up" event
|
|
|
1204 if (!down)
|
|
|
1205 writeModifierKeyEvents(0);
|
|
0
|
1206
|
|
4
|
1207 os.write(eventBuf, 0, eventBufLen);
|
|
|
1208 }
|
|
|
1209
|
|
|
1210 //
|
|
|
1211 // Add a raw key event with the given X keysym to eventBuf.
|
|
|
1212 //
|
|
0
|
1213
|
|
4
|
1214 void writeKeyEvent(int keysym, boolean down) {
|
|
|
1215 eventBuf[eventBufLen++] = (byte) KeyboardEvent;
|
|
|
1216 eventBuf[eventBufLen++] = (byte) (down ? 1 : 0);
|
|
|
1217 eventBuf[eventBufLen++] = (byte) 0;
|
|
|
1218 eventBuf[eventBufLen++] = (byte) 0;
|
|
|
1219 eventBuf[eventBufLen++] = (byte) ((keysym >> 24) & 0xff);
|
|
|
1220 eventBuf[eventBufLen++] = (byte) ((keysym >> 16) & 0xff);
|
|
|
1221 eventBuf[eventBufLen++] = (byte) ((keysym >> 8) & 0xff);
|
|
|
1222 eventBuf[eventBufLen++] = (byte) (keysym & 0xff);
|
|
|
1223 }
|
|
0
|
1224
|
|
4
|
1225 //
|
|
|
1226 // Write key events to set the correct modifier state.
|
|
|
1227 //
|
|
0
|
1228
|
|
4
|
1229 int oldModifiers = 0;
|
|
0
|
1230
|
|
4
|
1231 void writeModifierKeyEvents(int newModifiers) {
|
|
|
1232 if ((newModifiers & CTRL_MASK) != (oldModifiers & CTRL_MASK))
|
|
|
1233 writeKeyEvent(0xffe3, (newModifiers & CTRL_MASK) != 0);
|
|
0
|
1234
|
|
4
|
1235 if ((newModifiers & SHIFT_MASK) != (oldModifiers & SHIFT_MASK))
|
|
|
1236 writeKeyEvent(0xffe1, (newModifiers & SHIFT_MASK) != 0);
|
|
0
|
1237
|
|
4
|
1238 if ((newModifiers & META_MASK) != (oldModifiers & META_MASK))
|
|
|
1239 writeKeyEvent(0xffe7, (newModifiers & META_MASK) != 0);
|
|
0
|
1240
|
|
4
|
1241 if ((newModifiers & ALT_MASK) != (oldModifiers & ALT_MASK))
|
|
|
1242 writeKeyEvent(0xffe9, (newModifiers & ALT_MASK) != 0);
|
|
0
|
1243
|
|
4
|
1244 oldModifiers = newModifiers;
|
|
|
1245 }
|
|
0
|
1246
|
|
4
|
1247 //
|
|
|
1248 // Compress and write the data into the recorded session file. This
|
|
|
1249 // method assumes the recording is on (rec != null).
|
|
|
1250 //
|
|
0
|
1251
|
|
4
|
1252 void recordCompressedData(byte[] data, int off, int len) throws IOException {
|
|
|
1253 Deflater deflater = new Deflater();
|
|
|
1254 deflater.setInput(data, off, len);
|
|
|
1255 int bufSize = len + len / 100 + 12;
|
|
|
1256 byte[] buf = new byte[bufSize];
|
|
|
1257 deflater.finish();
|
|
|
1258 int compressedSize = deflater.deflate(buf);
|
|
|
1259 recordCompactLen(compressedSize);
|
|
|
1260 rec.write(buf, 0, compressedSize);
|
|
|
1261 }
|
|
0
|
1262
|
|
4
|
1263 void recordCompressedData(byte[] data) throws IOException {
|
|
|
1264 recordCompressedData(data, 0, data.length);
|
|
|
1265 }
|
|
0
|
1266
|
|
4
|
1267 //
|
|
|
1268 // Write an integer in compact representation (1..3 bytes) into the
|
|
|
1269 // recorded session file. This method assumes the recording is on
|
|
|
1270 // (rec != null).
|
|
|
1271 //
|
|
0
|
1272
|
|
4
|
1273 void recordCompactLen(int len) throws IOException {
|
|
|
1274 byte[] buf = new byte[3];
|
|
|
1275 int bytes = 0;
|
|
|
1276 buf[bytes++] = (byte) (len & 0x7F);
|
|
|
1277 if (len > 0x7F) {
|
|
|
1278 buf[bytes - 1] |= 0x80;
|
|
|
1279 buf[bytes++] = (byte) (len >> 7 & 0x7F);
|
|
|
1280 if (len > 0x3FFF) {
|
|
|
1281 buf[bytes - 1] |= 0x80;
|
|
|
1282 buf[bytes++] = (byte) (len >> 14 & 0xFF);
|
|
|
1283 }
|
|
|
1284 }
|
|
|
1285 rec.write(buf, 0, bytes);
|
|
|
1286 }
|
|
0
|
1287
|
|
4
|
1288 public void startTiming() {
|
|
|
1289 timing = true;
|
|
0
|
1290
|
|
4
|
1291 // Carry over up to 1s worth of previous rate for smoothing.
|
|
0
|
1292
|
|
4
|
1293 if (timeWaitedIn100us > 10000) {
|
|
|
1294 timedKbits = timedKbits * 10000 / timeWaitedIn100us;
|
|
|
1295 timeWaitedIn100us = 10000;
|
|
|
1296 }
|
|
|
1297 }
|
|
0
|
1298
|
|
4
|
1299 public void stopTiming() {
|
|
|
1300 timing = false;
|
|
|
1301 if (timeWaitedIn100us < timedKbits / 2)
|
|
|
1302 timeWaitedIn100us = timedKbits / 2; // upper limit 20Mbit/s
|
|
|
1303 }
|
|
0
|
1304
|
|
4
|
1305 public long kbitsPerSecond() {
|
|
|
1306 return timedKbits * 10000 / timeWaitedIn100us;
|
|
|
1307 }
|
|
0
|
1308
|
|
4
|
1309 public long timeWaited() {
|
|
|
1310 return timeWaitedIn100us;
|
|
|
1311 }
|
|
0
|
1312
|
|
4
|
1313 //
|
|
|
1314 // Methods for reading data via our DataInputStream member variable (is).
|
|
|
1315 //
|
|
|
1316 // In addition to reading data, the readFully() methods updates variables
|
|
|
1317 // used to estimate data throughput.
|
|
|
1318 //
|
|
0
|
1319
|
|
4
|
1320 public void readFully(byte b[]) throws IOException {
|
|
|
1321 readFully(b, 0, b.length);
|
|
|
1322 }
|
|
0
|
1323
|
|
4
|
1324 public void readFully(byte b[], int off, int len) throws IOException {
|
|
|
1325 long before = 0;
|
|
|
1326 if (timing)
|
|
|
1327 before = System.currentTimeMillis();
|
|
|
1328
|
|
|
1329 is.readFully(b, off, len);
|
|
0
|
1330
|
|
4
|
1331 if (timing) {
|
|
|
1332 long after = System.currentTimeMillis();
|
|
|
1333 long newTimeWaited = (after - before) * 10;
|
|
|
1334 int newKbits = len * 8 / 1000;
|
|
0
|
1335
|
|
4
|
1336 // limit rate to between 10kbit/s and 40Mbit/s
|
|
0
|
1337
|
|
4
|
1338 if (newTimeWaited > newKbits * 1000)
|
|
|
1339 newTimeWaited = newKbits * 1000;
|
|
|
1340 if (newTimeWaited < newKbits / 4)
|
|
|
1341 newTimeWaited = newKbits / 4;
|
|
0
|
1342
|
|
4
|
1343 timeWaitedIn100us += newTimeWaited;
|
|
|
1344 timedKbits += newKbits;
|
|
|
1345 }
|
|
0
|
1346
|
|
4
|
1347 numBytesRead += len;
|
|
|
1348 }
|
|
0
|
1349
|
|
4
|
1350 final int available() throws IOException {
|
|
|
1351 return is.available();
|
|
|
1352 }
|
|
0
|
1353
|
|
4
|
1354 // FIXME: DataInputStream::skipBytes() is not guaranteed to skip
|
|
|
1355 // exactly n bytes. Probably we don't want to use this method.
|
|
|
1356 final int skipBytes(int n) throws IOException {
|
|
|
1357 int r = is.skipBytes(n);
|
|
|
1358 numBytesRead += r;
|
|
|
1359 return r;
|
|
|
1360 }
|
|
0
|
1361
|
|
4
|
1362 final int readU8() throws IOException {
|
|
|
1363 int r = is.readUnsignedByte();
|
|
|
1364 numBytesRead++;
|
|
0
|
1365
|
|
4
|
1366 return r;
|
|
|
1367 }
|
|
0
|
1368
|
|
4
|
1369 final int readU16() throws IOException {
|
|
|
1370 int r = is.readUnsignedShort();
|
|
|
1371 numBytesRead += 2;
|
|
|
1372 return r;
|
|
|
1373 }
|
|
0
|
1374
|
|
4
|
1375 final int readU32() throws IOException {
|
|
|
1376 int r = is.readInt();
|
|
|
1377 numBytesRead += 4;
|
|
|
1378 return r;
|
|
|
1379 }
|
|
0
|
1380 }
|
