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1 import java.io.BufferedReader;
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2 import java.io.IOException;
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3 import java.io.InputStreamReader;
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4 import java.net.BindException;
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5 import java.net.ServerSocket;
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6 import java.net.Socket;
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7 import java.util.LinkedList;
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8
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9
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10 class MyRfbProto extends RfbProto {
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11
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12 private int messageType;
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13 private int rectangles;
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14 private int rectX;
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15 private int rectY;
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16 private int rectW;
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17 private int rectH;
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18
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18 private int encoding;
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19
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20 private ServerSocket servSock;
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21 private int acceptPort;
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22 private byte initData[];
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23 private LinkedList <Socket> cliList;
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24
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25 MyRfbProto(String h, int p, VncViewer v ) throws IOException {
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26 super(h, p, v);
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27 cliList = new LinkedList <Socket>();
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28 }
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29
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13
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30 MyRfbProto(String h, int p) throws IOException {
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31 super(h, p);
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32 cliList = new LinkedList <Socket>();
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33 }
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34
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35 void initServSock(int port) throws IOException{
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36 servSock = new ServerSocket(port);
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37 acceptPort = port;
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38 }
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39 void selectPort(){
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40 int i = 5550;
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41 while(true){
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42 try{
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43 initServSock(i);
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44 break;
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45 }catch(BindException e){
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46 i++;
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47 continue;
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48 }catch(IOException e){
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49
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50 }
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51 }
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52 }
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53 int getAcceptPort(){
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54 return acceptPort;
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55 }
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56 void setSoTimeout(int num) throws IOException {
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57 servSock.setSoTimeout(num);
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58 }
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59
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60 Socket accept() throws IOException {
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61 return servSock.accept();
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62 }
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63
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64 void addSock(Socket sock){
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65 cliList.add(sock);
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66 }
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67
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68 void mark(int len) throws IOException {
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69 is.mark(len);
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70 }
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71
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72 void reset() throws IOException {
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73 is.reset();
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74 }
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75
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76 boolean markSupported() {
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77 return is.markSupported();
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78 }
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79
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80 void readServerInit() throws IOException {
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81
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82 mark(255);
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83 skipBytes(20);
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84 int nlen = readU32();
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85 int blen = 20+4+nlen;
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86 initData = new byte[blen];
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87 reset();
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88
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89 mark(blen);
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90 readFully(initData);
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91 reset();
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92
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93 framebufferWidth = readU16();
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94 framebufferHeight = readU16();
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95 bitsPerPixel = readU8();
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96 depth = readU8();
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97 bigEndian = (readU8() != 0);
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98 trueColour = (readU8() != 0);
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99 redMax = readU16();
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100 greenMax = readU16();
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101 blueMax = readU16();
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102 redShift = readU8();
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103 greenShift = readU8();
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104 blueShift = readU8();
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105 byte[] pad = new byte[3];
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106 readFully(pad);
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107 int nameLength = readU32();
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108 byte[] name = new byte[nameLength];
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109 readFully(name);
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110 desktopName = new String(name);
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111
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112 // Read interaction capabilities (TightVNC protocol extensions)
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113 if (protocolTightVNC) {
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114 int nServerMessageTypes = readU16();
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115 int nClientMessageTypes = readU16();
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116 int nEncodingTypes = readU16();
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117 readU16();
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118 readCapabilityList(serverMsgCaps, nServerMessageTypes);
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119 readCapabilityList(clientMsgCaps, nClientMessageTypes);
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120 readCapabilityList(encodingCaps, nEncodingTypes);
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121 }
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122
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123 inNormalProtocol = true;
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124 }
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125
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126 void sendInitData(Socket sock) throws IOException{
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127 sock.getOutputStream().write(initData);
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128 }
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129
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130 // void sendData(byte b[]) throws IOException{
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131 void sendData(byte b[]){
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132 try{
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133 for(Socket cli : cliList){
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134 try{
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135 cli.getOutputStream().write(b, 0, b.length);
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136 }catch(IOException e){
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137 // if socket closed
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138 // cliList.remove(cli);
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139 cliList.remove(cli);
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140 }
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141 }
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142 // System.out.println("cliSize="+cliSize());
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143 }catch(Exception e){
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144 // System.out.println("cliSize 0");
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145 }
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10
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146 }
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147 boolean ready() throws IOException {
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148 BufferedReader br = new BufferedReader(new InputStreamReader(is));
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149 return br.ready();
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150 }
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151
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152 int cliSize(){
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153 return cliList.size();
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154 }
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15
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155 void printNumBytesRead(){
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156 System.out.println("numBytesRead="+numBytesRead);
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157 }
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158 void bufResetSend(int size) throws IOException {
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159 reset();
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160 int len = size;
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161 if(available() < size )
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162 len = available();
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163 byte buffer[] = new byte[len];
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164 readFully(buffer);
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165 sendData(buffer);
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166 }
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18
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167 void regiFramebufferUpdate()throws IOException{
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168 mark(16);
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169 messageType = readU8();
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170 skipBytes(1);
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171 rectangles = readU16();
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172 rectX = readU16();
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173 rectY = readU16();
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174 rectW = readU16();
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175 rectH = readU16();
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176 encoding = readU32();
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177 reset();
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178 }
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179 void checkAndMark() throws IOException{
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180 switch(encoding){
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181 case RfbProto.EncodingRaw:
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182 mark(rectW * rectH * 4 + 16);
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183 break;
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184 default:
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185 mark(1000000);
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186 }
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187 }
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188
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18
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189 void printFramebufferUpdate(){
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190
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191 System.out.println("messageType=" + messageType);
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192 System.out.println("rectangles="+rectangles);
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193 System.out.println("encoding=" + encoding);
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23
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194 switch(encoding){
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195 case RfbProto.EncodingRaw:
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196 System.out.println("rectW * rectH * 4 + 16 =" + rectW * rectH * 4 + 16);
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197 break;
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198 default:
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199
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200
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201 }
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18
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202 }
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15
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203
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10
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204
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205 }
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