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0
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1 package treeVnc;
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2
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3
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4 import java.awt.Graphics;
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5 import java.awt.Image;
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6 import java.awt.image.BufferedImage;
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7 import java.io.BufferedInputStream;
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8 import java.io.BufferedOutputStream;
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9 import java.io.BufferedReader;
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10 import java.io.ByteArrayInputStream;
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11 import java.io.ByteArrayOutputStream;
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12 import java.io.DataInputStream;
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13 import java.io.IOException;
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14 import java.io.InputStream;
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15 import java.io.InputStreamReader;
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16 import java.net.BindException;
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1
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17 import java.net.DatagramPacket;
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18 import java.net.InetAddress;
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19 import java.net.MulticastSocket;
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0
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20 import java.net.ServerSocket;
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21 import java.net.Socket;
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22 import java.nio.ByteBuffer;
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23 import java.util.LinkedList;
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24
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25 import javax.imageio.ImageIO;
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26
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27 //import MulticastQueue.Client;
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28
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29
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30 import java.util.concurrent.ExecutorService;
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31 import java.util.concurrent.atomic.AtomicInteger;
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32 import java.util.zip.DataFormatException;
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33 import java.util.zip.Deflater;
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34 import java.util.zip.Inflater;
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35 import java.io.OutputStream;
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36
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37 public
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38 class MyRfbProtoClient extends RfbProto implements MyRfbProto {
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39 final static String versionMsg_3_855 = "RFB 003.855\n";
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40
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41 /**
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42 * CheckMillis is one of new msgType for RFB 3.855.
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43 */
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44 final static byte SpeedCheckMillis = 4;
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45 final static byte WriteJpegData = 5;
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46
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47 private static final int INFLATE_BUFSIZE = 1024*100;
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48 boolean printStatusFlag = false;
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49 long startCheckTime;
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50
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51 private int messageType;
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52 private int rectangles;
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53 private int rectX;
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54 private int rectY;
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55 private int rectW;
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56 private int rectH;
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57 private int encoding;
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58 private int zLen;
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59 //private boolean clicomp = false;
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1
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60 private byte[] broadCastBuf = new byte[64000];
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0
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61
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62 private ServerSocket servSock;
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63 private int acceptPort;
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64 private byte initData[];
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65 private LinkedList<Socket> cliListTmp;
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66 private LinkedList<Socket> cliList;
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67 boolean createBimgFlag;
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68 boolean proxyFlag = false;
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69
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70 //override
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71 InterfaceForViewer viewer;
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72
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73 ExecutorService executor;
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74
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75 byte[] pngBytes;
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76
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77 // private MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MostRecentMultiCast<LinkedList<ByteBuffer>>(10);
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78 private MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MulticastQueue<LinkedList<ByteBuffer>>();
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79 private int clients = 0;
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80 private Inflater inflater = new Inflater();
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81 private Deflater deflater = new Deflater();
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82
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83 public
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84 MyRfbProtoClient() throws IOException {
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85 }
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86
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87 MyRfbProtoClient(String h, int p, VncViewer v) throws IOException {
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88 super(h, p, v);
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89 cliList = new LinkedList<Socket>();
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90 cliListTmp = new LinkedList<Socket>();
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91 createBimgFlag = false;
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92 // sendThreads = new LinkedList<Thread>();
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93 // executor = Executors.newCachedThreadPool();
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94 // executor = Executors.newSingleThreadExecutor();
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95 }
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96
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97 MyRfbProtoClient(String h, int p, MyVncClient v) throws IOException {
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98 super(h, p);
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99 this.viewer = v;
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100 cliList = new LinkedList<Socket>();
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101 cliListTmp = new LinkedList<Socket>();
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102 createBimgFlag = false;
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103 proxyFlag = false;
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104 // sendThreads = new LinkedList<Thread>();
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105 // executor = Executors.newCachedThreadPool();
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106 // executor = Executors.newSingleThreadExecutor();
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107 }
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108
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109 MyRfbProtoClient(String h, int p, CuiMyVncClient v) throws IOException {
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110 super(h, p);
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111 this.viewer = v;
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112 cliList = new LinkedList<Socket>();
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113 cliListTmp = new LinkedList<Socket>();
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114 createBimgFlag = false;
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115 proxyFlag = false;
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116 // sendThreads = new LinkedList<Thread>();
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117 // executor = Executors.newCachedThreadPool();
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118 // executor = Executors.newSingleThreadExecutor();
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119 }
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120
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121
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122 MyRfbProtoClient(String h, int p) throws IOException {
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123 super(h, p);
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124 cliList = new LinkedList<Socket>();
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125 cliListTmp = new LinkedList<Socket>();
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126 createBimgFlag = false;
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127 // sendThreads = new LinkedList<Thread>();
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128 // executor = Executors.newCachedThreadPool();
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129 // executor = Executors.newSingleThreadExecutor();
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130 }
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131
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132
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133 void sendProxyFlag(OutputStream os) throws IOException {
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134 if(proxyFlag) os.write(1);
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135 else os.write(0);
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136 }
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137
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138 boolean readProxyFlag() throws IOException{
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139 int flag = readU8();
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140 if(flag == 1)
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141 return true;
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142 else
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143 return false;
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144 }
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145
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146 /*
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147 void sendPortNumber(OutputStream os) throws IOException {
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148 byte[] b = new byte[4];
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149 b = castIntByte(geth.port);
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150 os.write(b);
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151 }
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152 */
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153
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154 byte[] readEchoPort() throws Exception {
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155 byte[] b = new byte[4];
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156 readFully(b);
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157
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158 return b;
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159 }
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160
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161
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162
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163 void changeParent(String h, int p) throws IOException {
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164 host = h;
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165 port = p;
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166
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167 sock = new Socket(host, port);
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1
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168 is = new DataInputStream(new BufferedInputStream(sock.getInputStream(),16384));
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0
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169 os = sock.getOutputStream();
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170
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171 timing = false;
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172 timeWaitedIn100us = 5;
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173 timedKbits = 0;
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174 }
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175
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176 // over write
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177 void writeVersionMsg() throws IOException {
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178 clientMajor = 3;
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179 if (serverMinor == 855) {
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180 clientMinor = 855;
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181 os.write(versionMsg_3_855.getBytes());
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182 } else if (serverMajor > 3 || serverMinor >= 8) {
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183 clientMinor = 8;
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184 os.write(versionMsg_3_8.getBytes());
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185 } else if (serverMinor >= 7) {
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186 clientMinor = 7;
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187 os.write(versionMsg_3_7.getBytes());
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188 } else {
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189 clientMinor = 3;
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190 os.write(versionMsg_3_3.getBytes());
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191 }
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192 protocolTightVNC = false;
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193 initCapabilities();
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194 }
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195
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196 void initServSock(int port) throws IOException {
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197 servSock = new ServerSocket(port);
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198 acceptPort = port;
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199 }
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200
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201 // 5550を開けるが、開いてないなら+1のポートを開ける。
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202 public void selectPort(int p) {
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203 int port = p;
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204 while (true) {
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205 try {
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206 initServSock(port);
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207 break;
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208 } catch (BindException e) {
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209 port++;
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210 continue;
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211 } catch (IOException e) {
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212
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213 }
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214 }
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215 System.out.println("accept port = " + port);
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216 }
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217
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218 int getAcceptPort() {
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219 return acceptPort;
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220 }
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221
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222 void setSoTimeout(int num) throws IOException {
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223 servSock.setSoTimeout(num);
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224 }
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225
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226 public Socket accept() throws IOException {
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227 return servSock.accept();
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228 }
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229
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230 void addSock(Socket sock) {
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231 cliList.add(sock);
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232 }
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233
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234 void addSockTmp(Socket sock) {
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235 System.out.println("connected " + sock.getInetAddress());
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236 cliListTmp.add(sock);
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237 }
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238
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239 boolean markSupported() {
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240 return is.markSupported();
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241 }
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242
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243 void readServerInit() throws IOException {
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244
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245 is.mark(255);
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246 skipBytes(20);
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247 int nlen = readU32();
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248 int blen = 20 + 4 + nlen;
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249 initData = new byte[blen];
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250 is.reset();
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251
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252 is.mark(blen);
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253 readFully(initData);
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254 is.reset();
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255
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256 framebufferWidth = readU16();
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257 framebufferHeight = readU16();
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258 bitsPerPixel = readU8();
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259 depth = readU8();
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260 bigEndian = (readU8() != 0);
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261 trueColour = (readU8() != 0);
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262 redMax = readU16();
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263 greenMax = readU16();
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264 blueMax = readU16();
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265 redShift = readU8();
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266 greenShift = readU8();
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267 blueShift = readU8();
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268 byte[] pad = new byte[3];
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269 readFully(pad);
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270 int nameLength = readU32();
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271 byte[] name = new byte[nameLength];
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272 readFully(name);
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273 desktopName = new String(name);
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274
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275 // Read interaction capabilities (TightVNC protocol extensions)
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276 if (protocolTightVNC) {
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277 int nServerMessageTypes = readU16();
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278 int nClientMessageTypes = readU16();
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279 int nEncodingTypes = readU16();
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280 readU16();
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281 readCapabilityList(serverMsgCaps, nServerMessageTypes);
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282 readCapabilityList(clientMsgCaps, nClientMessageTypes);
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283 readCapabilityList(encodingCaps, nEncodingTypes);
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284 }
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285
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286 inNormalProtocol = true;
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287 }
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288
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289 void sendRfbVersion(OutputStream os) throws IOException {
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290 os.write(versionMsg_3_855.getBytes());
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291 // os.write(versionMsg_3_8.getBytes());
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292 }
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293
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294 int readVersionMsg(InputStream is, OutputStream os) throws IOException {
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295
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296 byte[] b = new byte[12];
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297
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298 is.read(b);
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299
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300 if ((b[0] != 'R') || (b[1] != 'F') || (b[2] != 'B') || (b[3] != ' ')
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301 || (b[4] < '0') || (b[4] > '9') || (b[5] < '0') || (b[5] > '9')
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302 || (b[6] < '0') || (b[6] > '9') || (b[7] != '.')
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303 || (b[8] < '0') || (b[8] > '9') || (b[9] < '0') || (b[9] > '9')
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304 || (b[10] < '0') || (b[10] > '9') || (b[11] != '\n')) {
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305 throw new IOException("Host " + host + " port " + port
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306 + " is not an RFB server");
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307 }
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308
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309 int rfbMajor = (b[4] - '0') * 100 + (b[5] - '0') * 10 + (b[6] - '0');
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310 int rfbMinor = (b[8] - '0') * 100 + (b[9] - '0') * 10 + (b[10] - '0');
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311
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312 if (rfbMajor < 3) {
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313 throw new IOException(
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314 "RFB server does not support protocol version 3");
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315 }
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316
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317 if (rfbMinor == 855) {
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318 sendProxyFlag(os);
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319 // if(proxyFlag)sendPortNumber(os);
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320 }
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321 return rfbMinor;
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322
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323 } void readVersionMsg(InputStream is) throws IOException {
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324
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325 byte[] b = new byte[12];
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326
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327 is.read(b);
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328
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329 if ((b[0] != 'R') || (b[1] != 'F') || (b[2] != 'B') || (b[3] != ' ')
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330 || (b[4] < '0') || (b[4] > '9') || (b[5] < '0') || (b[5] > '9')
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331 || (b[6] < '0') || (b[6] > '9') || (b[7] != '.')
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332 || (b[8] < '0') || (b[8] > '9') || (b[9] < '0') || (b[9] > '9')
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333 || (b[10] < '0') || (b[10] > '9') || (b[11] != '\n')) {
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334 throw new IOException("Host " + host + " port " + port
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335 + " is not an RFB server");
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336 }
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337
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338 serverMajor = (b[4] - '0') * 100 + (b[5] - '0') * 10 + (b[6] - '0');
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339 serverMinor = (b[8] - '0') * 100 + (b[9] - '0') * 10 + (b[10] - '0');
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340
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341 if (serverMajor < 3) {
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342 throw new IOException(
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343 "RFB server does not support protocol version 3");
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344 }
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345
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346
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347 }
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348
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349
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350 void sendSecurityType(OutputStream os) throws IOException {
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351 // number-of-security-types
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352 os.write(1);
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353 // security-types
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354 // 1:None
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355 os.write(1);
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356 }
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357
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358 void readSecType(InputStream is) throws IOException {
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359 byte[] b = new byte[1];
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360 is.read(b);
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361
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362 }
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363
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364 void sendSecResult(OutputStream os) throws IOException {
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365 byte[] b = castIntByte(0);
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366 os.write(b);
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367 }
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368
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369 void readClientInit(InputStream in) throws IOException {
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370 byte[] b = new byte[0];
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371 in.read(b);
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372 }
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373
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374 void sendInitData(OutputStream os) throws IOException {
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375 os.write(initData);
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376 }
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377
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378
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379 void sendPngImage() {
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380 try {
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381 for (Socket cli : cliListTmp) {
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382 try {
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383 sendPngData(cli);
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384 addSock(cli);
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385 } catch (IOException e) {
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386 // if socket closed
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387 cliListTmp.remove(cli);
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388 }
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389 }
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390 // System.out.println("cliSize="+cliSize());
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391 } catch (Exception e) {
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392 }
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393 cliListTmp.clear();
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394 }
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395
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396 boolean ready() throws IOException {
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397 BufferedReader br = new BufferedReader(new InputStreamReader(is));
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398 return br.ready();
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399 }
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400
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401 int cliSize() {
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402 return cliList.size();
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403 }
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404
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405 void printNumBytesRead() {
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406 System.out.println("numBytesRead=" + numBytesRead);
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407 }
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408
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409
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1
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410 Runnable sendr = new Runnable() {
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411 public void run() {
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412 broadCastCommnication();
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413 }
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414 };
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415
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416 void mcastStart(){
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417 new Thread(sendr).start();
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418 }
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419
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420
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421 void broadCastCommnication() {
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422 String mcastAddr = "224.0.0.1";
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423 int port = 8192;
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424 int bufSize = 1024;
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425
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426 String recvData;
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427 is = new DataInputStream(new ByteArrayInputStream(broadCastBuf));
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428
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429 try {
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430 InetAddress mAddr = InetAddress.getByName(mcastAddr);
|
|
|
431 MulticastSocket soc = new MulticastSocket(port);
|
|
|
432 DatagramPacket recvPacket = new DatagramPacket(broadCastBuf, bufSize);
|
|
|
433
|
|
|
434 soc.joinGroup(mAddr);
|
|
|
435 //System.out.println("マルチキャスト"+mcastAddr+"に参加します");
|
|
|
436
|
|
|
437 while(true) {
|
|
|
438 soc.receive(recvPacket);
|
|
|
439 recvData =new String(recvPacket.getData());
|
|
|
440 recvData = recvData.trim();
|
|
|
441 if(recvData.equals("quit")) {
|
|
|
442 break;
|
|
|
443 }
|
|
|
444 // System.out.println(recvData);
|
|
|
445 }
|
|
|
446 soc.leaveGroup(mAddr);
|
|
|
447 soc.close();
|
|
|
448 } catch(IOException e) {
|
|
|
449 e.printStackTrace();
|
|
|
450 }
|
|
|
451 }
|
|
|
452
|
|
|
453
|
|
|
454
|
|
0
|
455
|
|
|
456 void regiFramebufferUpdate() throws IOException {
|
|
2
|
457 //mcastStart();
|
|
0
|
458 is.mark(20);
|
|
|
459 messageType = readU8(); // 0
|
|
|
460 skipBytes(1); // 1
|
|
|
461 rectangles = readU16(); // 2
|
|
|
462 rectX = readU16(); // 4
|
|
|
463 rectY = readU16(); // 6
|
|
|
464 rectW = readU16(); // 8
|
|
|
465 rectH = readU16(); // 10
|
|
|
466 encoding = readU32(); // 12
|
|
|
467 // System.out.println("encoding = "+encoding);
|
|
|
468 if (encoding == EncodingZRLE|| encoding==EncodingZRLEE||encoding==EncodingZlib)
|
|
|
469 zLen = readU32();
|
|
|
470 else
|
|
|
471 zLen = 0;
|
|
|
472 is.reset();
|
|
|
473
|
|
|
474 }
|
|
|
475
|
|
|
476 int checkAndMark() throws IOException {
|
|
|
477 int dataLen;
|
|
|
478 switch (encoding) {
|
|
|
479 case RfbProto.EncodingRaw:
|
|
|
480 dataLen = rectW * rectH * 4 + 16;
|
|
|
481 is.mark(dataLen);
|
|
|
482 break;
|
|
|
483 case RfbProto.EncodingCopyRect:
|
|
|
484 dataLen = 16 + 4;
|
|
|
485 is.mark(dataLen);
|
|
|
486 break;
|
|
|
487 case RfbProto.EncodingRRE:
|
|
|
488 case RfbProto.EncodingCoRRE:
|
|
|
489 case RfbProto.EncodingHextile:
|
|
|
490 case RfbProto.EncodingTight:
|
|
|
491 dataLen = zLen + 20;
|
|
|
492 is.mark(dataLen);
|
|
|
493 break;
|
|
|
494 case RfbProto.EncodingZlib:
|
|
|
495 case RfbProto.EncodingZRLE:
|
|
|
496 case RfbProto.EncodingZRLEE:
|
|
|
497 dataLen = zLen + 20;
|
|
|
498 is.mark(dataLen);
|
|
|
499 break;
|
|
|
500 case RfbProto.EncodingXCursor:
|
|
|
501 case RfbProto.EncodingRichCursor:
|
|
|
502 int pixArray = rectW * rectH * 4;
|
|
|
503 int u8Array = (int)Math.floor((rectW + 7)/8) * rectH;
|
|
|
504 dataLen = pixArray + u8Array;
|
|
|
505 printFramebufferUpdate();
|
|
|
506 is.mark(dataLen);
|
|
|
507 break;
|
|
|
508 default:
|
|
|
509 dataLen = 1000000;
|
|
|
510 is.mark(dataLen);
|
|
|
511 }
|
|
|
512 return dataLen;
|
|
|
513 }
|
|
|
514
|
|
|
515
|
|
|
516 void sendDataToClient() throws Exception {
|
|
|
517 regiFramebufferUpdate();
|
|
|
518 int dataLen = checkAndMark();
|
|
|
519 readSendData(dataLen);
|
|
|
520 }
|
|
|
521
|
|
|
522 BufferedImage createBufferedImage(Image img) {
|
|
|
523 BufferedImage bimg = new BufferedImage(img.getWidth(null),
|
|
|
524 img.getHeight(null), BufferedImage.TYPE_INT_RGB);
|
|
|
525
|
|
|
526 Graphics g = bimg.getGraphics();
|
|
|
527 g.drawImage(img, 0, 0, null);
|
|
|
528 g.dispose();
|
|
|
529 return bimg;
|
|
|
530 }
|
|
|
531
|
|
|
532 void createPngBytes(BufferedImage bimg) throws IOException {
|
|
|
533 pngBytes = getImageBytes(bimg, "png");
|
|
|
534 }
|
|
|
535
|
|
|
536 byte[] getBytes(BufferedImage img) throws IOException {
|
|
|
537 byte[] b = getImageBytes(img, "png");
|
|
|
538 return b;
|
|
|
539 }
|
|
|
540
|
|
|
541 byte[] getImageBytes(BufferedImage image, String imageFormat)
|
|
|
542 throws IOException {
|
|
|
543 ByteArrayOutputStream bos = new ByteArrayOutputStream();
|
|
|
544 BufferedOutputStream os = new BufferedOutputStream(bos);
|
|
|
545 image.flush();
|
|
|
546 ImageIO.write(image, imageFormat, os);
|
|
|
547 os.flush();
|
|
|
548 os.close();
|
|
|
549 return bos.toByteArray();
|
|
|
550 }
|
|
|
551
|
|
|
552 void sendPngData(Socket sock) throws IOException {
|
|
|
553 byte[] dataLength = castIntByte(pngBytes.length);
|
|
|
554 sock.getOutputStream().write(dataLength);
|
|
|
555 sock.getOutputStream().write(pngBytes);
|
|
|
556 }
|
|
|
557
|
|
|
558 byte[] castIntByte(int len) {
|
|
|
559 byte[] b = new byte[4];
|
|
|
560 b[0] = (byte) ((len >>> 24) & 0xFF);
|
|
|
561 b[1] = (byte) ((len >>> 16) & 0xFF);
|
|
|
562 b[2] = (byte) ((len >>> 8) & 0xFF);
|
|
|
563 b[3] = (byte) ((len >>> 0) & 0xFF);
|
|
|
564 return b;
|
|
|
565 }
|
|
|
566
|
|
|
567 BufferedImage createBimg() throws IOException {
|
|
|
568 BufferedImage bimg = ImageIO.read(new ByteArrayInputStream(pngBytes));
|
|
|
569 return bimg;
|
|
|
570 }
|
|
|
571
|
|
|
572 void printFramebufferUpdate() {
|
|
|
573
|
|
|
574 System.out.println("messageType=" + messageType);
|
|
|
575 System.out.println("rectangles=" + rectangles);
|
|
|
576 System.out.println("encoding=" + encoding);
|
|
|
577 System.out.println("rectX = "+rectX+": rectY = "+rectY);
|
|
|
578 System.out.println("rectW = "+rectW+": rectH = "+rectH);
|
|
|
579 switch (encoding) {
|
|
|
580 case RfbProto.EncodingRaw:
|
|
|
581 System.out.println("rectW * rectH * 4 + 16 =" + rectW * rectH * 4
|
|
|
582 + 16);
|
|
|
583 break;
|
|
|
584 default:
|
|
|
585 }
|
|
|
586 }
|
|
|
587
|
|
|
588 void sendFullScreen(String imageFormat, OutputStream os) {
|
|
|
589 BufferedImage bimg = getBufferedImage(viewer.getScreenImage());
|
|
|
590 try {
|
|
|
591 byte[] b = getImageBytes(bimg, imageFormat);
|
|
|
592 // int len = b.length;
|
|
|
593 byte[] length = castIntByte(b.length);
|
|
|
594 // System.out.println("jpeg length = " + b.length);
|
|
|
595 os.write((byte)WriteJpegData);
|
|
|
596 os.write(length); // length of jpeg data
|
|
|
597 os.write(b); // jpeg data
|
|
|
598 os.flush();
|
|
|
599 } catch (IOException e) {
|
|
|
600 e.printStackTrace();
|
|
|
601 }
|
|
|
602 }
|
|
|
603
|
|
|
604
|
|
|
605 // unnecessary method
|
|
|
606 void readWriteJpegData() throws IOException {
|
|
|
607 byte[] b = readJpegData();
|
|
|
608 viewer.writeScreenData(b, "jpeg");
|
|
|
609 }
|
|
|
610
|
|
|
611 byte[] readJpegData() throws IOException {
|
|
|
612 int len = readU32();
|
|
|
613 byte[] b = new byte[len];
|
|
|
614 readFully(b);
|
|
|
615 return b;
|
|
|
616 }
|
|
|
617
|
|
|
618
|
|
|
619 public BufferedImage getBufferedImage(Image img) {
|
|
|
620 BufferedImage bimg = new BufferedImage(framebufferWidth, framebufferHeight, BufferedImage.TYPE_INT_RGB);
|
|
|
621 Graphics g = bimg.getGraphics();
|
|
|
622 g.drawImage(img, 0, 0, null);
|
|
|
623 g.dispose();
|
|
|
624 return bimg;
|
|
|
625 }
|
|
|
626
|
|
|
627 void readSpeedCheck() throws IOException {
|
|
|
628 byte[] b = new byte[1];
|
|
|
629 readFully(b);
|
|
|
630 }
|
|
|
631
|
|
|
632 void startSpeedCheck() {
|
|
|
633 ByteBuffer b = ByteBuffer.allocate(10);
|
|
|
634 b.put((byte)SpeedCheckMillis);
|
|
|
635 b.flip();
|
|
|
636 startCheckTime = System.currentTimeMillis();
|
|
|
637 System.out.println("startChckTime = "+ startCheckTime);
|
|
|
638 LinkedList<ByteBuffer>bufs = new LinkedList<ByteBuffer>();
|
|
|
639 bufs.add(b);
|
|
|
640 multicastqueue.put(bufs);
|
|
|
641 }
|
|
|
642
|
|
|
643 void endSpeedCheck() {
|
|
|
644 long accTime = System.currentTimeMillis();
|
|
|
645 long time = accTime - startCheckTime;
|
|
|
646 System.out.println("checkMillis: " + time);
|
|
|
647 }
|
|
|
648
|
|
|
649
|
|
|
650 synchronized void changeStatusFlag() {
|
|
|
651 printStatusFlag = true;
|
|
|
652 }
|
|
|
653
|
|
|
654 void printMills() {
|
|
|
655 if(printStatusFlag) {
|
|
|
656
|
|
|
657 changeStatusFlag();
|
|
|
658 } else {
|
|
|
659 changeStatusFlag();
|
|
|
660 }
|
|
|
661 }
|
|
|
662
|
|
|
663 void speedCheckMillis() {
|
|
|
664 Runnable stdin = new Runnable() {
|
|
|
665 public void run() {
|
|
|
666 int c;
|
|
|
667 try {
|
|
|
668 while( (c = System.in.read()) != -1 ) {
|
|
|
669 switch(c) {
|
|
|
670 case 's':
|
|
|
671 break;
|
|
|
672 default:
|
|
|
673 startSpeedCheck();
|
|
|
674 break;
|
|
|
675 }
|
|
|
676 }
|
|
|
677 }catch(IOException e){
|
|
|
678 System.out.println(e);
|
|
|
679 }
|
|
|
680 }
|
|
|
681 };
|
|
|
682
|
|
|
683 new Thread(stdin).start();
|
|
|
684 }
|
|
|
685
|
|
|
686 /**
|
|
|
687 * gzip byte arrays
|
|
|
688 * @param deflater
|
|
|
689 * @param inputs
|
|
|
690 * byte data[]
|
|
|
691 * @param inputIndex
|
|
|
692 * @param outputs
|
|
|
693 * byte data[]
|
|
|
694 * @return byte length in last byte array
|
|
|
695 * @throws IOException
|
|
|
696 */
|
|
|
697 public int zip(Deflater deflater,LinkedList<ByteBuffer> inputs, int inputIndex, LinkedList<ByteBuffer> outputs) throws IOException {
|
|
|
698 int len = 0;
|
|
|
699 ByteBuffer c1= ByteBuffer.allocate(INFLATE_BUFSIZE);
|
|
|
700 while(inputIndex < inputs.size() ) {
|
|
|
701 ByteBuffer b1 = inputs.get(inputIndex++);
|
|
|
702 deflater.setInput(b1.array(),b1.position(),b1.remaining());
|
|
|
703 /**
|
|
|
704 * If we finish() stream and reset() it, Deflater start new gzip stream, this makes continuous zlib reader unhappy.
|
|
|
705 * if we remove finish(), Deflater.deflate() never flushes its output. The original zlib deflate has flush flag. I'm pretty
|
|
|
706 * sure this a kind of bug of Java library.
|
|
|
707 */
|
|
|
708 if (inputIndex==inputs.size())
|
|
|
709 deflater.finish();
|
|
|
710 int len1 = 0;
|
|
|
711 do {
|
|
|
712 len1 = deflater.deflate(c1.array(),c1.position(),c1.remaining());
|
|
|
713 if (len1>0) {
|
|
|
714 len += len1;
|
|
|
715 c1.position(c1.position()+len1);
|
|
|
716 if (c1.remaining()==0) {
|
|
|
717 c1.flip(); outputs.addLast(c1);
|
|
|
718 c1 = ByteBuffer.allocate(INFLATE_BUFSIZE);
|
|
|
719 }
|
|
|
720 }
|
|
|
721 } while (len1 >0 || !deflater.needsInput()); // &&!deflater.finished());
|
|
|
722 }
|
|
|
723 if (c1.position()!=0) {
|
|
|
724 c1.flip(); outputs.addLast(c1);
|
|
|
725 }
|
|
|
726 deflater.reset();
|
|
|
727 return len;
|
|
|
728 }
|
|
|
729
|
|
|
730 /**
|
|
|
731 * gunzip byte arrays
|
|
|
732 * @param inflater
|
|
|
733 * @param inputs
|
|
|
734 * byte data[]
|
|
|
735 * @param outputs
|
|
|
736 * byte data[]
|
|
|
737 *@return number of total bytes
|
|
|
738 * @throws IOException
|
|
|
739 */
|
|
|
740 public int unzip(Inflater inflater, LinkedList<ByteBuffer> inputs, int inputIndex, LinkedList<ByteBuffer> outputs,int bufSize)
|
|
|
741 throws DataFormatException {
|
|
|
742 int len=0;
|
|
|
743 ByteBuffer buf = ByteBuffer.allocate(bufSize);
|
|
|
744 while (inputIndex < inputs.size()) {
|
|
|
745 ByteBuffer input = inputs.get(inputIndex++);
|
|
|
746 inflater.setInput(input.array(),input.position(),input.limit());
|
|
|
747 // if (inputIndex==inputs.size()) if inflater/deflater has symmetry, we need this
|
|
|
748 // inflater.end(); but this won't work
|
|
|
749 do {
|
|
|
750 int len0 = inflater.inflate(buf.array(),buf.position(),buf.remaining());
|
|
|
751 if (len0>0) {
|
|
|
752 buf.position(buf.position()+len0);
|
|
|
753 len += len0;
|
|
|
754 if (buf.remaining()==0) {
|
|
|
755 buf.flip();
|
|
|
756 outputs.addLast(buf);
|
|
|
757 buf = ByteBuffer.allocate(bufSize);
|
|
|
758 }
|
|
|
759 }
|
|
|
760 } while (!inflater.needsInput());
|
|
|
761 }
|
|
|
762 if (buf.position()!=0) {
|
|
|
763 buf.flip();
|
|
|
764 outputs.addLast(buf);
|
|
|
765 }
|
|
|
766 return len;
|
|
|
767 }
|
|
|
768
|
|
|
769 /**
|
|
|
770 * send data to clients
|
|
|
771 * @param dataLen
|
|
|
772 * @throws IOException
|
|
|
773 * @throws DataFormatException
|
|
|
774 *
|
|
|
775 * Zlibed packet is compressed in context dependent way, that is, it have to send from the beginning. But this is
|
|
|
776 * impossible. So we have to compress it again for each clients. Separate deflater for each clients is necessary.
|
|
|
777 *
|
|
|
778 * Java's deflater does not support flush. This means to get the result, we have to finish the compression. Reseting
|
|
|
779 * start new compression, but it is not accepted well in zlib continuous reading. So we need new Encoding ZRLEE
|
|
|
780 * which reset decoder for each packet. ZRLEE can be invisible from user, but it have to be implemented in the clients.
|
|
|
781 * ZRLEE compression is not context dependent, so no recompression is necessary.
|
|
|
782 */
|
|
|
783 void sendDataCheckDelay() {
|
|
|
784 LinkedList<ByteBuffer>bufs = new LinkedList<ByteBuffer>();
|
|
|
785 ByteBuffer b = ByteBuffer.allocate(8);
|
|
|
786 b.put((byte)CheckDelay);
|
|
|
787 bufs.add(b);
|
|
|
788 multicastqueue.put(bufs);
|
|
|
789 }
|
|
|
790
|
|
|
791 void readSendData(int dataLen) throws IOException, DataFormatException {
|
|
|
792 LinkedList<ByteBuffer>bufs = new LinkedList<ByteBuffer>();
|
|
|
793 ByteBuffer header = ByteBuffer.allocate(16);
|
|
|
794 readFully(header.array(),0,16);
|
|
|
795 header.limit(16);
|
|
|
796 if (header.get(0)==RfbProto.FramebufferUpdate) {
|
|
|
797 int encoding = header.getInt(12);
|
|
|
798 if (encoding==RfbProto.EncodingZRLE||encoding==RfbProto.EncodingZlib) { // ZRLEE is already recompressed
|
|
|
799 ByteBuffer len = ByteBuffer.allocate(4);
|
|
|
800 readFully(len.array(),0,4); len.limit(4);
|
|
|
801 ByteBuffer inputData = ByteBuffer.allocate(dataLen-20);
|
|
|
802 readFully(inputData.array(),0,inputData.capacity()); inputData.limit(dataLen-20);
|
|
|
803 LinkedList<ByteBuffer>inputs = new LinkedList<ByteBuffer>();
|
|
|
804 inputs.add(inputData);
|
|
|
805
|
|
|
806 header.putInt(12, RfbProto.EncodingZRLEE); // means recompress every time
|
|
|
807 // using new Deflecter every time is incompatible with the protocol, clients have to be modified.
|
|
|
808 Deflater nDeflater = deflater; // new Deflater();
|
|
|
809 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>();
|
|
|
810 unzip(inflater, inputs, 0 , out, INFLATE_BUFSIZE);
|
|
|
811 // dump32(inputs);
|
|
|
812 int len2 = zip(nDeflater, out, 0, bufs);
|
|
|
813 ByteBuffer blen = ByteBuffer.allocate(4); blen.putInt(len2); blen.flip();
|
|
|
814 bufs.addFirst(blen);
|
|
|
815
|
|
|
816 bufs.addFirst(header);
|
|
|
817 multicastqueue.put(bufs);
|
|
|
818 is.reset();
|
|
|
819 return ;
|
|
|
820 }
|
|
|
821 }
|
|
|
822 bufs.add(header);
|
|
|
823 if (dataLen>16) {
|
|
|
824 ByteBuffer b = ByteBuffer.allocate(dataLen-16);
|
|
|
825 readFully(b.array(),0,dataLen-16); b.limit(dataLen-16);
|
|
|
826 bufs.add(b);
|
|
|
827 }
|
|
|
828 multicastqueue.put(bufs);
|
|
|
829 is.reset();
|
|
|
830
|
|
|
831 // It may be compressed. We can inflate here to avoid repeating clients decompressing here,
|
|
|
832 // but it may generate too many large data. It is better to do it in each client.
|
|
|
833 // But we have do inflation for all input data, so we have to do it here.
|
|
|
834 }
|
|
|
835
|
|
|
836 public void newClient(AcceptThread acceptThread, final Socket newCli,
|
|
|
837 final OutputStream os, final InputStream is) throws IOException {
|
|
2
|
838 //mcastStart();
|
|
0
|
839 // createBimgFlag = true;
|
|
|
840 // rfb.addSockTmp(newCli);
|
|
|
841 // addSock(newCli);
|
|
|
842 final int myId = clients;
|
|
|
843 final MulticastQueue.Client <LinkedList<ByteBuffer>> c = multicastqueue.newClient();
|
|
|
844 final AtomicInteger writerRunning = new AtomicInteger();
|
|
|
845 writerRunning.set(1);
|
|
|
846 /**
|
|
|
847 * Timeout thread. If a client is suspended, it has top of queue indefinitely, which caused memory
|
|
|
848 * overflow. After the timeout, we poll the queue and discard it. Start long wait if writer is running.
|
|
|
849 */
|
|
|
850 final Runnable timer = new Runnable() {
|
|
|
851 public void run() {
|
|
|
852 int count = 0;
|
|
|
853 for(;;) {
|
|
|
854 long timeout = 40000/8;
|
|
|
855 try {
|
|
|
856 synchronized(this) {
|
|
|
857 int state,flag;
|
|
|
858 writerRunning.set(0);
|
|
|
859 wait(timeout);
|
|
|
860 flag = 0;
|
|
|
861 while((state=writerRunning.get())==0) {
|
|
|
862 c.poll(); // discard, should be timeout
|
|
|
863 count++;
|
|
|
864 if (flag==0) {
|
|
|
865 System.out.println("Discarding "+myId + " count="+ count); flag = 1;
|
|
|
866 }
|
|
|
867 wait(10); // if this is too short, writer cannot take the poll, if this is too long, memory will overflow...
|
|
|
868 }
|
|
|
869 if (flag==1) System.out.println("Resuming "+myId + " count="+count);
|
|
|
870 if (state!=1) {
|
|
|
871 System.out.println("Client died "+myId);
|
|
|
872 break;
|
|
|
873 }
|
|
|
874 }
|
|
|
875 } catch (InterruptedException e) {
|
|
|
876 }
|
|
|
877 }
|
|
|
878 }
|
|
|
879 };
|
|
|
880 new Thread(timer).start();
|
|
|
881 /**
|
|
|
882 * discard all incoming from clients
|
|
|
883 */
|
|
|
884 final Runnable reader = new Runnable() {
|
|
|
885 public void run() {
|
|
|
886 byte b[] = new byte[4096];
|
|
|
887 for(;;) {
|
|
|
888 try {
|
|
|
889 int c = is.read(b);
|
|
|
890 if (c<=0) throw new IOException();
|
|
|
891 // System.out.println("client read "+c);
|
|
|
892 } catch (IOException e) {
|
|
|
893 try {
|
|
|
894 writerRunning.set(2);
|
|
|
895 os.close();
|
|
|
896 is.close();
|
|
|
897 } catch (IOException e1) {
|
|
|
898 }
|
|
|
899 return;
|
|
|
900 }
|
|
|
901 }
|
|
|
902 }
|
|
|
903 };
|
|
|
904 /**
|
|
|
905 * send packets to a client
|
|
|
906 */
|
|
|
907 Runnable sender = new Runnable() {
|
|
|
908 public void run() {
|
|
|
909 writerRunning.set(1);
|
|
|
910 try {
|
|
|
911 /**
|
|
|
912 * initial connection of RFB protocol
|
|
|
913 */
|
|
|
914 sendRfbVersion(os);
|
|
|
915 // readVersionMsg(is);
|
|
|
916 int rfbMinor = readVersionMsg(is,os);
|
|
|
917 sendSecurityType(os);
|
|
|
918 readSecType(is);
|
|
|
919 sendSecResult(os);
|
|
|
920 readClientInit(is);
|
|
|
921 sendInitData(os);
|
|
|
922 new Thread(reader).start(); // discard incoming packet here after.
|
|
|
923 if(rfbMinor == 855){
|
|
|
924 //checkDilay(os);
|
|
|
925 // send jpeg data of full screen.
|
|
|
926 // sendFullScreen("jpeg" ,os);
|
|
|
927 } else {
|
|
|
928 // send raw data of full screen.
|
|
|
929
|
|
|
930 }
|
|
|
931 for (;;) {
|
|
|
932 LinkedList<ByteBuffer> bufs = c.poll();
|
|
|
933 int inputIndex = 0;
|
|
|
934 ByteBuffer header = bufs.get(inputIndex);
|
|
|
935 if (header==null) continue;
|
|
|
936 if (header.get(0)==RfbProto.CheckDelay) {
|
|
|
937 System.out.println("--------------------");
|
|
|
938 //writeToClient(os, bufs, inputIndex);
|
|
|
939 }
|
|
|
940 if (header.get(0)==RfbProto.FramebufferUpdate) {
|
|
|
941 // System.out.println("client "+ myId);
|
|
|
942 }
|
|
|
943 writeToClient(os, bufs, inputIndex);
|
|
|
944 writerRunning.set(1); // yes my client is awaking.
|
|
|
945 }
|
|
|
946 } catch (IOException e) {
|
|
|
947 try {
|
|
|
948 writerRunning.set(2);
|
|
|
949 os.close();
|
|
|
950 } catch (IOException e1) {
|
|
|
951 /* if socket closed cliList.remove(newCli); */
|
|
|
952 }
|
|
|
953 }
|
|
|
954 }
|
|
|
955
|
|
|
956 public void writeToClient(final OutputStream os,
|
|
|
957 LinkedList<ByteBuffer> bufs, int inputIndex)
|
|
|
958 throws IOException {
|
|
|
959 while(inputIndex < bufs.size()) {
|
|
|
960 ByteBuffer b = bufs.get(inputIndex++);
|
|
|
961 os.write(b.array(), b.position(), b.limit());
|
|
|
962 }
|
|
|
963 os.flush();
|
|
|
964 }
|
|
|
965 };
|
|
|
966 clients++;
|
|
|
967 new Thread(sender).start();
|
|
|
968
|
|
|
969 }
|
|
|
970
|
|
|
971
|
|
|
972 public void dump32(LinkedList<ByteBuffer>bufs) {
|
|
|
973 int len =0;
|
|
|
974 for(ByteBuffer b: bufs) len += b.remaining();
|
|
|
975 ByteBuffer top = bufs.getFirst();
|
|
|
976 ByteBuffer end = bufs.getLast();
|
|
|
977 System.err.println("length: "+len);
|
|
|
978 System.err.print("head 0: ");
|
|
|
979 for(int i = 0; i<16 && i < top.remaining(); i++) {
|
|
|
980 System.err.print(" "+ top.get(i));
|
|
|
981 }
|
|
|
982 System.err.print("tail 0: ");
|
|
|
983 for(int i = 0; i<16 && i < end.remaining(); i++) {
|
|
|
984 System.err.print(" "+end.get(i));
|
|
|
985 }
|
|
|
986 System.err.println();
|
|
|
987 }
|
|
|
988 /*
|
|
|
989 private Iterable<Byte> byteBufferIterator(final LinkedList<ByteBuffer> in) {
|
|
|
990 return new Iterable<Byte>() {
|
|
|
991 public Iterator<Byte> iterator() {
|
|
|
992 return new Iterator<Byte>() {
|
|
|
993 int bytes = 0;
|
|
|
994 int buffers = 0;
|
|
|
995 public boolean hasNext() {
|
|
|
996 for(;;) {
|
|
|
997 if (buffers>=in.size()) return false;
|
|
|
998 ByteBuffer b = in.get(buffers);
|
|
|
999 if (! (bytes<b.remaining())) {
|
|
|
1000 buffers ++; bytes=0;
|
|
|
1001 } else return true;
|
|
|
1002 }
|
|
|
1003 }
|
|
|
1004 public Byte next() {
|
|
|
1005 ByteBuffer bf =in.get(buffers);
|
|
|
1006 byte b = bf.get(bytes++);
|
|
|
1007 if (bf.remaining()<=bytes) {
|
|
|
1008 buffers++;
|
|
|
1009 bytes = 0;
|
|
|
1010 }
|
|
|
1011 // System.out.print(b);
|
|
|
1012 return b;
|
|
|
1013 }
|
|
|
1014 public void remove() {
|
|
|
1015 }
|
|
|
1016 };
|
|
|
1017 }
|
|
|
1018 };
|
|
|
1019 }
|
|
|
1020 */
|
|
|
1021
|
|
|
1022 }
|
|
|
1023
|
|
|
1024
|
