Mercurial > hg > Members > nobuyasu > tightVNCProxy
annotate src/myVncProxy/MyRfbProto.java @ 183:1f583d6e0d1a
modify MulticastQueue.java : method poll()
| author | e085711 |
|---|---|
| date | Tue, 25 Oct 2011 17:33:47 +0900 |
| parents | f0dc6e6e85dc |
| children | 00e031baf065 |
| rev | line source |
|---|---|
| 24 | 1 package myVncProxy; |
| 54 | 2 |
| 88 | 3 import static org.junit.Assert.*; |
| 4 | |
| 25 | 5 import java.awt.Graphics; |
| 6 import java.awt.Image; | |
| 7 import java.awt.image.BufferedImage; | |
| 8 import java.io.BufferedOutputStream; | |
| 15 | 9 import java.io.BufferedReader; |
| 25 | 10 import java.io.ByteArrayInputStream; |
| 11 import java.io.ByteArrayOutputStream; | |
| 10 | 12 import java.io.IOException; |
| 43 | 13 import java.io.InputStream; |
| 15 | 14 import java.io.InputStreamReader; |
| 23 | 15 import java.net.BindException; |
| 10 | 16 import java.net.ServerSocket; |
| 17 import java.net.Socket; | |
| 90 | 18 import java.nio.ByteBuffer; |
| 93 | 19 import java.util.Iterator; |
| 10 | 20 import java.util.LinkedList; |
| 21 | |
| 25 | 22 import javax.imageio.ImageIO; |
| 23 | |
| 88 | 24 import org.junit.Test; |
| 25 | |
| 54 | 26 import myVncProxy.MulticastQueue.Client; |
| 27 | |
| 40 | 28 import java.util.concurrent.ExecutorService; |
|
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29 import java.util.concurrent.atomic.AtomicInteger; |
| 80 | 30 import java.util.zip.DataFormatException; |
| 31 import java.util.zip.Deflater; | |
| 32 import java.util.zip.Inflater; | |
| 40 | 33 import java.io.OutputStream; |
| 10 | 34 |
| 88 | 35 public |
| 107 | 36 class MyRfbProto extends RfbProto { |
| 154 | 37 final static String versionMsg_3_855 = "RFB 003.855\n"; |
| 65 | 38 /** |
| 154 | 39 * CheckMillis is one of new msgType for RFB 3.855. |
| 65 | 40 */ |
| 90 | 41 final static byte SpeedCheckMillis = 4; |
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42 |
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43 // Secyrity type of OS X |
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44 final static int SecTypeReqAccess = 32; |
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45 |
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46 // Supported authentication types |
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47 final static int AuthAccess = 32; |
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48 |
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49 |
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50 |
| 83 | 51 private static final int INFLATE_BUFSIZE = 1024*100; |
| 65 | 52 boolean printStatusFlag = false; |
| 53 long startCheckTime; | |
| 54 | 54 |
| 18 | 55 private int messageType; |
| 56 private int rectangles; | |
| 23 | 57 private int rectX; |
| 58 private int rectY; | |
| 59 private int rectW; | |
| 60 private int rectH; | |
| 18 | 61 private int encoding; |
| 27 | 62 private int zLen; |
| 104 | 63 private boolean clicomp = false; |
| 18 | 64 |
| 23 | 65 private ServerSocket servSock; |
| 144 | 66 protected int acceptPort; |
| 10 | 67 private byte initData[]; |
| 54 | 68 private LinkedList<Socket> cliListTmp; |
| 69 private LinkedList<Socket> cliList; | |
| 27 | 70 boolean createBimgFlag; |
| 155 | 71 boolean proxyFlag = true; |
| 54 | 72 |
| 40 | 73 ExecutorService executor; |
| 54 | 74 |
| 25 | 75 byte[] pngBytes; |
| 54 | 76 |
| 102 | 77 // private MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MostRecentMultiCast<LinkedList<ByteBuffer>>(10); |
| 78 private MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MulticastQueue<LinkedList<ByteBuffer>>(); | |
| 80 | 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(); |
| 130 | 82 private CreateThread geth; |
| 162 | 83 // private Thread requestThread; |
| 84 private RequestScreenThread rThread; | |
| 85 private Thread requestThread; | |
| 130 | 86 |
| 88 | 87 public |
| 88 MyRfbProto() throws IOException { | |
| 89 } | |
| 90 | |
| 54 | 91 MyRfbProto(String h, int p, VncViewer v) throws IOException { |
| 10 | 92 super(h, p, v); |
| 162 | 93 |
| 94 rThread = new RequestScreenThread(this); | |
| 95 requestThread = new Thread(rThread); | |
| 96 // requestThread = new Thread(new RequestScreenThread(this)); | |
| 10 | 97 } |
| 98 | |
| 130 | 99 MyRfbProto(String h, int p, CreateThread geth) throws IOException { |
| 128 | 100 super(h, p); |
| 130 | 101 this.geth = geth; |
| 155 | 102 proxyFlag = true; |
| 162 | 103 |
| 104 rThread = new RequestScreenThread(this); | |
| 105 requestThread = new Thread(rThread); | |
| 106 // requestThread = new Thread(new RequestScreenThread(this)); | |
| 128 | 107 } |
| 130 | 108 |
| 13 | 109 MyRfbProto(String h, int p) throws IOException { |
| 110 super(h, p); | |
| 162 | 111 |
| 112 rThread = new RequestScreenThread(this); | |
| 113 requestThread = new Thread(rThread); | |
| 114 // requestThread = new Thread(new RequestScreenThread(this)); | |
| 13 | 115 } |
| 162 | 116 |
| 44 | 117 // over write |
| 43 | 118 void writeVersionMsg() throws IOException { |
| 119 clientMajor = 3; | |
| 154 | 120 if (serverMinor == 855) { |
| 121 clientMinor = 855; | |
| 122 os.write(versionMsg_3_855.getBytes()); | |
| 43 | 123 } else if (serverMajor > 3 || serverMinor >= 8) { |
| 124 clientMinor = 8; | |
| 125 os.write(versionMsg_3_8.getBytes()); | |
| 126 } else if (serverMinor >= 7) { | |
| 127 clientMinor = 7; | |
| 128 os.write(versionMsg_3_7.getBytes()); | |
| 129 } else { | |
| 130 clientMinor = 3; | |
| 131 os.write(versionMsg_3_3.getBytes()); | |
| 132 } | |
| 133 protocolTightVNC = false; | |
| 134 initCapabilities(); | |
| 135 } | |
| 136 | |
| 54 | 137 void initServSock(int port) throws IOException { |
| 10 | 138 servSock = new ServerSocket(port); |
| 23 | 139 acceptPort = port; |
| 10 | 140 } |
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141 |
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142 void authenticationRequestAccess() throws IOException { |
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143 |
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144 byte[] headBuf = new byte[2]; |
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145 is.read(headBuf); |
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146 if(headBuf[1] == 2) { |
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147 byte[] b = new byte[258]; |
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148 is.read(b); |
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149 |
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150 byte[] outBuf = new byte[256]; |
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151 os.write(outBuf); |
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152 os.flush(); |
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153 }else if(headBuf[1] == 23) { |
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154 byte[] b = new byte[130]; |
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155 is.read(b); |
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156 byte[] outBuf = new byte[192]; |
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157 os.write(outBuf); |
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158 os.flush(); |
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159 } |
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160 |
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161 int result = readU32(); |
| 180 | 162 if(result != 0) { |
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163 System.out.println("faild authentication "); |
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164 throw new IOException(); |
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165 } |
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166 |
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167 } |
| 54 | 168 |
| 153 | 169 /* |
| 170 * default port number is 5999. | |
| 171 */ | |
| 80 | 172 void selectPort(int p) { |
| 144 | 173 if(servSock != null ) return ; |
| 80 | 174 int port = p; |
| 54 | 175 while (true) { |
| 176 try { | |
| 80 | 177 initServSock(port); |
| 23 | 178 break; |
| 54 | 179 } catch (BindException e) { |
| 80 | 180 port++; |
| 23 | 181 continue; |
| 54 | 182 } catch (IOException e) { |
| 10 | 183 |
| 23 | 184 } |
| 185 } | |
| 80 | 186 System.out.println("accept port = " + port); |
| 23 | 187 } |
| 54 | 188 |
| 189 int getAcceptPort() { | |
| 23 | 190 return acceptPort; |
| 191 } | |
| 54 | 192 |
| 10 | 193 void setSoTimeout(int num) throws IOException { |
| 194 servSock.setSoTimeout(num); | |
| 195 } | |
| 54 | 196 |
| 10 | 197 Socket accept() throws IOException { |
| 198 return servSock.accept(); | |
| 199 } | |
| 200 | |
| 54 | 201 void addSock(Socket sock) { |
| 10 | 202 cliList.add(sock); |
| 203 } | |
| 54 | 204 |
| 205 void addSockTmp(Socket sock) { | |
| 206 System.out.println("connected " + sock.getInetAddress()); | |
| 27 | 207 cliListTmp.add(sock); |
| 208 } | |
| 54 | 209 |
| 10 | 210 boolean markSupported() { |
| 211 return is.markSupported(); | |
| 212 } | |
| 54 | 213 |
| 10 | 214 void readServerInit() throws IOException { |
| 54 | 215 |
| 78 | 216 is.mark(255); |
| 10 | 217 skipBytes(20); |
| 218 int nlen = readU32(); | |
| 54 | 219 int blen = 20 + 4 + nlen; |
| 10 | 220 initData = new byte[blen]; |
| 78 | 221 is.reset(); |
| 10 | 222 |
| 78 | 223 is.mark(blen); |
| 10 | 224 readFully(initData); |
| 78 | 225 is.reset(); |
| 54 | 226 |
| 10 | 227 framebufferWidth = readU16(); |
| 228 framebufferHeight = readU16(); | |
| 229 bitsPerPixel = readU8(); | |
| 230 depth = readU8(); | |
| 231 bigEndian = (readU8() != 0); | |
| 232 trueColour = (readU8() != 0); | |
| 233 redMax = readU16(); | |
| 234 greenMax = readU16(); | |
| 235 blueMax = readU16(); | |
| 236 redShift = readU8(); | |
| 237 greenShift = readU8(); | |
| 238 blueShift = readU8(); | |
| 239 byte[] pad = new byte[3]; | |
| 240 readFully(pad); | |
| 241 int nameLength = readU32(); | |
| 242 byte[] name = new byte[nameLength]; | |
| 243 readFully(name); | |
| 244 desktopName = new String(name); | |
| 245 | |
| 246 // Read interaction capabilities (TightVNC protocol extensions) | |
| 247 if (protocolTightVNC) { | |
| 248 int nServerMessageTypes = readU16(); | |
| 249 int nClientMessageTypes = readU16(); | |
| 250 int nEncodingTypes = readU16(); | |
| 251 readU16(); | |
| 252 readCapabilityList(serverMsgCaps, nServerMessageTypes); | |
| 253 readCapabilityList(clientMsgCaps, nClientMessageTypes); | |
| 254 readCapabilityList(encodingCaps, nEncodingTypes); | |
| 255 } | |
| 256 | |
| 257 inNormalProtocol = true; | |
| 258 } | |
| 259 | |
| 54 | 260 void sendRfbVersion(OutputStream os) throws IOException { |
| 138 | 261 // os.write(versionMsg_3_8.getBytes()); |
| 154 | 262 os.write(versionMsg_3_855.getBytes()); |
| 43 | 263 } |
| 54 | 264 |
| 155 | 265 int readVersionMsg(InputStream is, OutputStream os) throws IOException { |
| 45 | 266 |
| 267 byte[] b = new byte[12]; | |
| 268 | |
| 269 is.read(b); | |
| 270 | |
| 271 if ((b[0] != 'R') || (b[1] != 'F') || (b[2] != 'B') || (b[3] != ' ') | |
| 272 || (b[4] < '0') || (b[4] > '9') || (b[5] < '0') || (b[5] > '9') | |
| 273 || (b[6] < '0') || (b[6] > '9') || (b[7] != '.') | |
| 274 || (b[8] < '0') || (b[8] > '9') || (b[9] < '0') || (b[9] > '9') | |
| 275 || (b[10] < '0') || (b[10] > '9') || (b[11] != '\n')) { | |
| 276 throw new IOException("Host " + host + " port " + port | |
| 277 + " is not an RFB server"); | |
| 278 } | |
| 279 | |
| 155 | 280 int rfbMajor = (b[4] - '0') * 100 + (b[5] - '0') * 10 + (b[6] - '0'); |
| 281 int rfbMinor = (b[8] - '0') * 100 + (b[9] - '0') * 10 + (b[10] - '0'); | |
| 45 | 282 |
| 155 | 283 if (rfbMajor < 3) { |
| 45 | 284 throw new IOException( |
| 141 | 285 "RFB server does not support protocol version 3"); |
| 54 | 286 } |
| 287 | |
| 155 | 288 if (rfbMinor == 855) { |
| 289 sendProxyFlag(os); | |
| 290 if(proxyFlag)sendPortNumber(os); | |
| 130 | 291 } |
| 155 | 292 return rfbMinor; |
| 293 } | |
| 294 void sendProxyFlag(OutputStream os) throws IOException { | |
| 295 if(proxyFlag) os.write(1); | |
| 296 else os.write(0); | |
| 297 } | |
| 298 | |
| 299 boolean readProxyFlag() throws IOException{ | |
| 300 int flag = readU8(); | |
| 301 if(flag == 1) | |
| 302 return true; | |
| 303 else | |
| 304 return false; | |
| 130 | 305 } |
| 306 | |
| 131 | 307 void sendPortNumber(OutputStream os) throws IOException { |
| 130 | 308 byte[] b = new byte[4]; |
| 309 b = castIntByte(geth.port); | |
| 310 os.write(b); | |
| 54 | 311 } |
| 312 | |
| 43 | 313 void sendSecurityType(OutputStream os) throws IOException { |
| 314 // number-of-security-types | |
| 315 os.write(1); | |
| 54 | 316 // security-types |
| 43 | 317 // 1:None |
| 318 os.write(1); | |
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319 |
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320 /* |
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321 os.write(4); |
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322 os.write(30); |
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323 os.write(31); |
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324 os.write(32); |
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325 os.write(35); |
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326 os.flush(); |
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327 */ |
| 43 | 328 } |
| 54 | 329 |
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330 void readSecType(InputStream is) throws IOException { |
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331 byte[] b = new byte[1]; |
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332 is.read(b); |
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333 } |
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334 |
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335 |
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336 void readSecType(InputStream is, OutputStream os) throws IOException { |
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337 byte[] b = new byte[1]; |
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338 is.read(b); |
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339 |
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340 int count = 260; |
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341 int[] data = {0, 2, 0, -128, -1, -1, -1, -1, -1, -1, -1, -1, -55, 15, -38, -94, 33, 104, -62, 52, -60, -58, 98, -117, -128, -36, 28, -47, 41, 2, 78, 8, -118, 103, -52, 116, 2, 11, -66, -90, 59, 19, -101, 34, 81, 74, 8, 121, -114, 52, 4, -35, -17, -107, 25, -77, -51, 58, 67, 27, 48, 43, 10, 109, -14, 95, 20, 55, 79, -31, 53, 109, 109, 81, -62, 69, -28, -123, -75, 118, 98, 94, 126, -58, -12, 76, 66, -23, -90, 55, -19, 107, 11, -1, 92, -74, -12, 6, -73, -19, -18, 56, 107, -5, 90, -119, -97, -91, -82, -97, 36, 17, 124, 75, 31, -26, 73, 40, 102, 81, -20, -26, 83, -127, -1, -1, -1, -1, -1, -1, -1, -1, -111, 73, -29, 30, 57, -67, -75, -77, -49, -50, -99, -76, -80, -80, 14, 65, 57, -105, -103, -54, -102, 3, 39, -44, 39, 35, 118, -84, -64, 37, -117, -21, 89, -31, -68, 70, 5, 122, -92, -119, 9, 121, 63, -112, -60, 122, -46, -69, -36, 92, -103, -92, 74, 92, -73, 87, 120, -8, 116, -47, 111, 20, -41, 110, 122, -3, -94, 14, 42, -51, -59, 48, -54, -125, 117, 60, 77, -52, -31, 98, 32, -2, -102, -15, -29, 58, -14, -106, -116, -32, -86, 50, -32, -16, -3, -123, 87, 88, -118, 10, 120, -107, -37, 125, -110, 59, 87, 93, -24, 124, -99, 18, 78, -13, -49, -34, -24, -27, 1, 114, -67, -98, -56, -3, 85, -67, -126, 77}; |
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342 for(int i=0; i<count; i++ ) { |
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343 os.write((byte)data[i]); |
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344 os.flush(); |
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345 } |
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346 |
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347 byte[] c = new byte[256]; |
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348 is.read(c); |
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349 |
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350 System.out.println(new String(c)); |
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351 |
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352 } |
| 54 | 353 |
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354 |
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355 void sendSecResult(OutputStream os) throws IOException { |
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356 byte[] b = castIntByte(0); |
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357 os.write(b); |
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358 } |
| 54 | 359 |
| 43 | 360 void readClientInit(InputStream in) throws IOException { |
| 361 byte[] b = new byte[0]; | |
| 362 in.read(b); | |
| 363 } | |
| 54 | 364 |
| 365 void sendInitData(OutputStream os) throws IOException { | |
| 366 os.write(initData); | |
| 10 | 367 } |
| 368 | |
| 54 | 369 |
| 370 void sendPngImage() { | |
| 371 try { | |
| 372 for (Socket cli : cliListTmp) { | |
| 373 try { | |
| 27 | 374 sendPngData(cli); |
| 375 addSock(cli); | |
| 54 | 376 } catch (IOException e) { |
| 27 | 377 // if socket closed |
| 378 cliListTmp.remove(cli); | |
| 379 } | |
| 380 } | |
| 54 | 381 // System.out.println("cliSize="+cliSize()); |
| 382 } catch (Exception e) { | |
| 27 | 383 } |
| 384 cliListTmp.clear(); | |
| 385 } | |
| 386 | |
| 15 | 387 boolean ready() throws IOException { |
| 388 BufferedReader br = new BufferedReader(new InputStreamReader(is)); | |
| 389 return br.ready(); | |
| 54 | 390 } |
| 10 | 391 |
| 54 | 392 int cliSize() { |
| 10 | 393 return cliList.size(); |
| 54 | 394 } |
| 395 | |
| 396 void printNumBytesRead() { | |
| 397 System.out.println("numBytesRead=" + numBytesRead); | |
| 398 } | |
| 399 | |
| 400 | |
| 61 | 401 |
| 54 | 402 void regiFramebufferUpdate() throws IOException { |
| 78 | 403 is.mark(20); |
| 80 | 404 messageType = readU8(); // 0 |
| 405 skipBytes(1); // 1 | |
| 406 rectangles = readU16(); // 2 | |
| 407 rectX = readU16(); // 4 | |
| 408 rectY = readU16(); // 6 | |
| 409 rectW = readU16(); // 8 | |
| 410 rectH = readU16(); // 10 | |
| 411 encoding = readU32(); // 12 | |
| 122 | 412 // System.out.println("encoding = "+encoding); |
| 107 | 413 if (encoding == EncodingZRLE|| encoding==EncodingZRLEE||encoding==EncodingZlib) |
| 27 | 414 zLen = readU32(); |
| 80 | 415 else |
| 416 zLen = 0; | |
| 78 | 417 is.reset(); |
| 104 | 418 |
| 15 | 419 } |
| 54 | 420 |
| 61 | 421 int checkAndMark() throws IOException { |
| 422 int dataLen; | |
| 54 | 423 switch (encoding) { |
| 23 | 424 case RfbProto.EncodingRaw: |
| 39 | 425 dataLen = rectW * rectH * 4 + 16; |
| 130 | 426 // is.mark(dataLen); |
| 23 | 427 break; |
| 67 | 428 case RfbProto.EncodingCopyRect: |
| 429 dataLen = 16 + 4; | |
| 130 | 430 // is.mark(dataLen); |
| 67 | 431 break; |
| 432 case RfbProto.EncodingRRE: | |
| 433 case RfbProto.EncodingCoRRE: | |
| 434 case RfbProto.EncodingHextile: | |
| 80 | 435 case RfbProto.EncodingTight: |
| 436 dataLen = zLen + 20; | |
| 130 | 437 // is.mark(dataLen); |
| 80 | 438 break; |
| 67 | 439 case RfbProto.EncodingZlib: |
| 27 | 440 case RfbProto.EncodingZRLE: |
| 107 | 441 case RfbProto.EncodingZRLEE: |
| 54 | 442 dataLen = zLen + 20; |
| 156 | 443 // is.mark(dataLen); |
| 78 | 444 break; |
| 445 case RfbProto.EncodingXCursor: | |
| 446 case RfbProto.EncodingRichCursor: | |
| 447 int pixArray = rectW * rectH * 4; | |
| 448 int u8Array = (int)Math.floor((rectW + 7)/8) * rectH; | |
| 449 dataLen = pixArray + u8Array; | |
| 450 printFramebufferUpdate(); | |
| 130 | 451 // is.mark(dataLen); |
| 27 | 452 break; |
| 23 | 453 default: |
| 61 | 454 dataLen = 1000000; |
| 130 | 455 // is.mark(dataLen); |
| 54 | 456 } |
| 61 | 457 return dataLen; |
| 458 } | |
| 65 | 459 |
| 460 | |
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461 void sendDataToClient() throws Exception { |
| 61 | 462 regiFramebufferUpdate(); |
| 183 | 463 printFramebufferUpdate(); |
| 61 | 464 int dataLen = checkAndMark(); |
| 465 readSendData(dataLen); | |
| 23 | 466 } |
| 54 | 467 |
| 468 BufferedImage createBufferedImage(Image img) { | |
| 469 BufferedImage bimg = new BufferedImage(img.getWidth(null), | |
| 470 img.getHeight(null), BufferedImage.TYPE_INT_RGB); | |
| 27 | 471 |
| 25 | 472 Graphics g = bimg.getGraphics(); |
| 473 g.drawImage(img, 0, 0, null); | |
| 474 g.dispose(); | |
| 475 return bimg; | |
| 476 } | |
| 477 | |
| 54 | 478 void createPngBytes(BufferedImage bimg) throws IOException { |
| 479 pngBytes = getImageBytes(bimg, "png"); | |
| 25 | 480 } |
| 54 | 481 |
| 482 byte[] getBytes(BufferedImage img) throws IOException { | |
| 25 | 483 byte[] b = getImageBytes(img, "png"); |
| 484 return b; | |
| 485 } | |
| 54 | 486 |
| 487 byte[] getImageBytes(BufferedImage image, String imageFormat) | |
| 488 throws IOException { | |
| 25 | 489 ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| 490 BufferedOutputStream os = new BufferedOutputStream(bos); | |
| 491 image.flush(); | |
| 492 ImageIO.write(image, imageFormat, os); | |
| 493 os.flush(); | |
| 494 os.close(); | |
| 495 return bos.toByteArray(); | |
| 496 } | |
| 497 | |
| 54 | 498 void sendPngData(Socket sock) throws IOException { |
| 26 | 499 byte[] dataLength = castIntByte(pngBytes.length); |
| 500 sock.getOutputStream().write(dataLength); | |
| 25 | 501 sock.getOutputStream().write(pngBytes); |
| 502 } | |
| 54 | 503 |
| 504 byte[] castIntByte(int len) { | |
| 26 | 505 byte[] b = new byte[4]; |
| 54 | 506 b[0] = (byte) ((len >>> 24) & 0xFF); |
| 507 b[1] = (byte) ((len >>> 16) & 0xFF); | |
| 508 b[2] = (byte) ((len >>> 8) & 0xFF); | |
| 509 b[3] = (byte) ((len >>> 0) & 0xFF); | |
| 26 | 510 return b; |
| 511 } | |
| 54 | 512 |
| 513 BufferedImage createBimg() throws IOException { | |
| 25 | 514 BufferedImage bimg = ImageIO.read(new ByteArrayInputStream(pngBytes)); |
| 515 return bimg; | |
| 516 } | |
| 104 | 517 |
| 54 | 518 void printFramebufferUpdate() { |
| 519 | |
| 18 | 520 System.out.println("messageType=" + messageType); |
| 54 | 521 System.out.println("rectangles=" + rectangles); |
| 18 | 522 System.out.println("encoding=" + encoding); |
| 78 | 523 System.out.println("rectX = "+rectX+": rectY = "+rectY); |
| 524 System.out.println("rectW = "+rectW+": rectH = "+rectH); | |
| 54 | 525 switch (encoding) { |
| 23 | 526 case RfbProto.EncodingRaw: |
| 54 | 527 System.out.println("rectW * rectH * 4 + 16 =" + rectW * rectH * 4 |
| 528 + 16); | |
| 23 | 529 break; |
| 530 default: | |
| 531 } | |
| 18 | 532 } |
| 130 | 533 int returnMsgtype() { |
| 534 return messageType; | |
| 535 } | |
| 536 | |
| 65 | 537 |
| 77 | 538 void readSpeedCheck() throws IOException { |
| 539 byte[] b = new byte[1]; | |
| 65 | 540 readFully(b); |
| 541 } | |
| 542 | |
| 77 | 543 void startSpeedCheck() { |
| 90 | 544 ByteBuffer b = ByteBuffer.allocate(10); |
| 545 b.put((byte)SpeedCheckMillis); | |
| 546 b.flip(); | |
| 66 | 547 startCheckTime = System.currentTimeMillis(); |
| 548 System.out.println("startChckTime = "+ startCheckTime); | |
| 90 | 549 LinkedList<ByteBuffer>bufs = new LinkedList<ByteBuffer>(); |
| 84 | 550 bufs.add(b); |
| 551 multicastqueue.put(bufs); | |
| 65 | 552 } |
| 553 | |
| 77 | 554 void endSpeedCheck() { |
| 65 | 555 long accTime = System.currentTimeMillis(); |
| 556 long time = accTime - startCheckTime; | |
| 557 System.out.println("checkMillis: " + time); | |
| 558 } | |
| 559 | |
| 560 | |
| 561 synchronized void changeStatusFlag() { | |
| 562 printStatusFlag = true; | |
| 563 } | |
| 564 | |
| 565 void printMills() { | |
| 566 if(printStatusFlag) { | |
| 567 | |
| 568 changeStatusFlag(); | |
| 569 } else { | |
| 570 changeStatusFlag(); | |
| 571 } | |
| 572 } | |
| 87 | 573 |
| 574 void speedCheckMillis() { | |
| 575 Runnable stdin = new Runnable() { | |
| 576 public void run() { | |
| 577 int c; | |
| 578 try { | |
| 579 while( (c = System.in.read()) != -1 ) { | |
| 580 switch(c) { | |
| 581 case 's': | |
| 582 break; | |
| 583 default: | |
| 584 startSpeedCheck(); | |
| 585 break; | |
| 586 } | |
| 587 } | |
| 588 }catch(IOException e){ | |
| 589 System.out.println(e); | |
| 590 } | |
| 591 } | |
| 592 }; | |
| 593 | |
| 594 new Thread(stdin).start(); | |
| 595 } | |
| 162 | 596 |
| 597 void requestThreadStart() { | |
| 598 requestThread.start(); | |
| 599 } | |
| 600 | |
| 601 public synchronized void requestThreadNotify() { | |
| 602 rThread.reStart(); | |
| 603 } | |
| 604 | |
| 86 | 605 |
| 87 | 606 /** |
| 607 * gzip byte arrays | |
| 608 * @param deflater | |
| 609 * @param inputs | |
| 610 * byte data[] | |
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611 * @param inputIndex |
| 87 | 612 * @param outputs |
| 613 * byte data[] | |
| 614 * @return byte length in last byte array | |
| 615 * @throws IOException | |
| 616 */ | |
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617 public int zip(Deflater deflater,LinkedList<ByteBuffer> inputs, int inputIndex, LinkedList<ByteBuffer> outputs) throws IOException { |
| 102 | 618 int len = 0; |
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619 ByteBuffer c1= ByteBuffer.allocate(INFLATE_BUFSIZE); |
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620 while(inputIndex < inputs.size() ) { |
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621 ByteBuffer b1 = inputs.get(inputIndex++); |
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622 deflater.setInput(b1.array(),b1.position(),b1.remaining()); |
| 106 | 623 /** |
| 624 * If we finish() stream and reset() it, Deflater start new gzip stream, this makes continuous zlib reader unhappy. | |
| 625 * if we remove finish(), Deflater.deflate() never flushes its output. The original zlib deflate has flush flag. I'm pretty | |
| 626 * sure this a kind of bug of Java library. | |
| 627 */ | |
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628 if (inputIndex==inputs.size()) |
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629 deflater.finish(); |
| 106 | 630 int len1 = 0; |
| 86 | 631 do { |
| 106 | 632 len1 = deflater.deflate(c1.array(),c1.position(),c1.remaining()); |
| 102 | 633 if (len1>0) { |
| 634 len += len1; | |
| 635 c1.position(c1.position()+len1); | |
| 636 if (c1.remaining()==0) { | |
| 637 c1.flip(); outputs.addLast(c1); | |
| 638 c1 = ByteBuffer.allocate(INFLATE_BUFSIZE); | |
| 639 } | |
| 86 | 640 } |
| 106 | 641 } while (len1 >0 || !deflater.needsInput()); // &&!deflater.finished()); |
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642 } |
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643 if (c1.position()!=0) { |
| 102 | 644 c1.flip(); outputs.addLast(c1); |
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645 } |
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646 deflater.reset(); |
| 90 | 647 return len; |
| 86 | 648 } |
| 87 | 649 |
| 650 /** | |
| 651 * gunzip byte arrays | |
| 652 * @param inflater | |
| 653 * @param inputs | |
| 654 * byte data[] | |
| 655 * @param outputs | |
| 656 * byte data[] | |
| 91 | 657 *@return number of total bytes |
| 87 | 658 * @throws IOException |
| 659 */ | |
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660 public int unzip(Inflater inflater, LinkedList<ByteBuffer> inputs, int inputIndex, LinkedList<ByteBuffer> outputs,int bufSize) |
| 88 | 661 throws DataFormatException { |
| 102 | 662 int len=0; |
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663 ByteBuffer buf = ByteBuffer.allocate(bufSize); |
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664 while (inputIndex < inputs.size()) { |
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665 ByteBuffer input = inputs.get(inputIndex++); |
| 102 | 666 inflater.setInput(input.array(),input.position(),input.limit()); |
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667 // if (inputIndex==inputs.size()) if inflater/deflater has symmetry, we need this |
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668 // inflater.end(); but this won't work |
| 88 | 669 do { |
| 102 | 670 int len0 = inflater.inflate(buf.array(),buf.position(),buf.remaining()); |
| 671 if (len0>0) { | |
| 672 buf.position(buf.position()+len0); | |
| 673 len += len0; | |
| 674 if (buf.remaining()==0) { | |
| 675 buf.flip(); | |
| 676 outputs.addLast(buf); | |
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677 buf = ByteBuffer.allocate(bufSize); |
| 102 | 678 } |
| 91 | 679 } |
| 102 | 680 } while (!inflater.needsInput()); |
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681 } |
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682 if (buf.position()!=0) { |
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683 buf.flip(); |
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684 outputs.addLast(buf); |
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685 } |
| 90 | 686 return len; |
| 86 | 687 } |
| 156 | 688 |
| 65 | 689 |
| 156 | 690 float maxMag = 1; |
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691 /** |
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692 * send data to clients |
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693 * @param dataLen |
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694 * @throws IOException |
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695 * @throws DataFormatException |
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696 * |
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697 * Zlibed packet is compressed in context dependent way, that is, it have to send from the beginning. But this is |
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698 * impossible. So we have to compress it again for each clients. Separate deflater for each clients is necessary. |
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699 * |
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700 * Java's deflater does not support flush. This means to get the result, we have to finish the compression. Reseting |
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701 * start new compression, but it is not accepted well in zlib continuous reading. So we need new Encoding ZRLEE |
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702 * which reset decoder for each packet. ZRLEE can be invisible from user, but it have to be implemented in the clients. |
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703 * ZRLEE compression is not context dependent, so no recompression is necessary. |
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704 */ |
| 86 | 705 void readSendData(int dataLen) throws IOException, DataFormatException { |
| 90 | 706 LinkedList<ByteBuffer>bufs = new LinkedList<ByteBuffer>(); |
| 707 ByteBuffer header = ByteBuffer.allocate(16); | |
| 708 readFully(header.array(),0,16); | |
| 709 header.limit(16); | |
| 710 if (header.get(0)==RfbProto.FramebufferUpdate) { | |
| 711 int encoding = header.getInt(12); | |
| 107 | 712 if (encoding==RfbProto.EncodingZRLE||encoding==RfbProto.EncodingZlib) { // ZRLEE is already recompressed |
| 90 | 713 ByteBuffer len = ByteBuffer.allocate(4); |
| 714 readFully(len.array(),0,4); len.limit(4); | |
| 715 ByteBuffer inputData = ByteBuffer.allocate(dataLen-20); | |
| 151 | 716 |
| 717 startTiming(); | |
| 90 | 718 readFully(inputData.array(),0,inputData.capacity()); inputData.limit(dataLen-20); |
| 151 | 719 stopTiming(); |
| 720 | |
| 90 | 721 LinkedList<ByteBuffer>inputs = new LinkedList<ByteBuffer>(); |
| 88 | 722 inputs.add(inputData); |
| 107 | 723 |
| 724 header.putInt(12, RfbProto.EncodingZRLEE); // means recompress every time | |
| 725 // using new Deflecter every time is incompatible with the protocol, clients have to be modified. | |
| 726 Deflater nDeflater = deflater; // new Deflater(); | |
| 727 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); | |
| 728 unzip(inflater, inputs, 0 , out, INFLATE_BUFSIZE); | |
| 729 // dump32(inputs); | |
| 730 int len2 = zip(nDeflater, out, 0, bufs); | |
| 731 ByteBuffer blen = ByteBuffer.allocate(4); blen.putInt(len2); blen.flip(); | |
| 732 bufs.addFirst(blen); | |
| 733 | |
| 87 | 734 bufs.addFirst(header); |
| 86 | 735 multicastqueue.put(bufs); |
| 156 | 736 // is.reset(); |
| 130 | 737 |
| 156 | 738 /* |
| 739 System.out.println("ZRLE = "+dataLen); | |
| 740 System.out.println("ZRLEE = "+(len2+20)); | |
| 741 float mag = (float)dataLen / (float)(len2 + 20); | |
| 742 System.out.println("ZRLE / ZRLEE = "+ mag); | |
| 743 if(mag > maxMag) maxMag = mag; | |
| 744 System.out.println("maxMag = "+maxMag); | |
| 745 */ | |
| 86 | 746 return ; |
| 747 } | |
| 87 | 748 bufs.add(header); |
| 749 if (dataLen>16) { | |
| 90 | 750 ByteBuffer b = ByteBuffer.allocate(dataLen-16); |
| 156 | 751 startTiming(); |
| 90 | 752 readFully(b.array(),0,dataLen-16); b.limit(dataLen-16); |
| 156 | 753 stopTiming(); |
| 87 | 754 bufs.add(b); |
| 755 } | |
| 86 | 756 multicastqueue.put(bufs); |
| 135 | 757 // is.reset(); |
| 758 return ; | |
| 130 | 759 } |
| 760 is.reset(); | |
| 86 | 761 |
| 762 // It may be compressed. We can inflate here to avoid repeating clients decompressing here, | |
| 763 // but it may generate too many large data. It is better to do it in each client. | |
| 764 // But we have do inflation for all input data, so we have to do it here. | |
| 765 } | |
| 43 | 766 |
| 71 | 767 void newClient(AcceptThread acceptThread, final Socket newCli, |
| 54 | 768 final OutputStream os, final InputStream is) throws IOException { |
| 769 // createBimgFlag = true; | |
| 770 // rfb.addSockTmp(newCli); | |
| 771 // addSock(newCli); | |
| 112 | 772 final int myId = clients; |
| 90 | 773 final Client <LinkedList<ByteBuffer>> c = multicastqueue.newClient(); |
|
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774 final AtomicInteger writerRunning = new AtomicInteger(); |
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775 writerRunning.set(1); |
| 112 | 776 /** |
| 777 * Timeout thread. If a client is suspended, it has top of queue indefinitely, which caused memory | |
| 778 * overflow. After the timeout, we poll the queue and discard it. Start long wait if writer is running. | |
| 779 */ | |
|
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780 final Runnable timer = new Runnable() { |
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781 public void run() { |
|
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782 int count = 0; |
|
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783 for(;;) { |
| 114 | 784 long timeout = 30000/8; |
|
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785 try { |
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786 synchronized(this) { |
|
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787 int state,flag; |
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788 writerRunning.set(0); |
|
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789 wait(timeout); |
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790 flag = 0; |
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791 while((state=writerRunning.get())==0) { |
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792 c.poll(); // discard, should be timeout |
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793 count++; |
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794 if (flag==0) { |
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795 System.out.println("Discarding "+myId + " count="+ count); flag = 1; |
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796 } |
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797 wait(10); // if this is too short, writer cannot take the poll, if this is too long, memory will overflow... |
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798 } |
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799 if (flag==1) System.out.println("Resuming "+myId + " count="+count); |
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800 if (state!=1) { |
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801 System.out.println("Client died "+myId); |
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802 break; |
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803 } |
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804 } |
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805 } catch (InterruptedException e) { |
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806 } |
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807 } |
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808 } |
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809 }; |
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810 new Thread(timer).start(); |
| 112 | 811 /** |
| 812 * discard all incoming from clients | |
| 813 */ | |
| 102 | 814 final Runnable reader = new Runnable() { |
| 815 public void run() { | |
| 816 byte b[] = new byte[4096]; | |
| 817 for(;;) { | |
| 818 try { | |
| 819 int c = is.read(b); | |
| 820 if (c<=0) throw new IOException(); | |
|
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821 // System.out.println("client read "+c); |
| 102 | 822 } catch (IOException e) { |
| 823 try { | |
|
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824 writerRunning.set(2); |
| 102 | 825 os.close(); |
| 826 is.close(); | |
| 827 } catch (IOException e1) { | |
| 828 } | |
| 829 return; | |
| 830 } | |
| 831 } | |
| 832 } | |
| 833 }; | |
| 112 | 834 /** |
| 835 * send packets to a client | |
| 836 */ | |
| 54 | 837 Runnable sender = new Runnable() { |
| 838 public void run() { | |
|
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839 writerRunning.set(1); |
| 54 | 840 try { |
|
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841 requestThreadNotify(); |
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842 |
| 65 | 843 /** |
| 844 * initial connection of RFB protocol | |
| 845 */ | |
| 54 | 846 sendRfbVersion(os); |
| 131 | 847 // readVersionMsg(is); |
| 155 | 848 int rfbMinor = readVersionMsg(is,os); |
| 54 | 849 sendSecurityType(os); |
| 850 readSecType(is); | |
| 851 sendSecResult(os); | |
| 852 readClientInit(is); | |
| 853 sendInitData(os); | |
| 112 | 854 new Thread(reader).start(); // discard incoming packet here after. |
| 162 | 855 // writeFramebufferUpdateRequest(0,0, framebufferWidth, framebufferHeight, false ); |
| 54 | 856 for (;;) { |
| 90 | 857 LinkedList<ByteBuffer> bufs = c.poll(); |
|
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858 int inputIndex = 0; |
|
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859 ByteBuffer header = bufs.get(inputIndex); |
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860 if (header==null) continue; |
| 90 | 861 if (header.get(0)==RfbProto.FramebufferUpdate) { |
|
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862 // System.out.println("client "+ myId); |
| 87 | 863 } |
|
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864 writeToClient(os, bufs, inputIndex); |
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865 writerRunning.set(1); // yes my client is awaking. |
| 54 | 866 } |
| 867 } catch (IOException e) { | |
|
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868 try { |
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869 writerRunning.set(2); |
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870 os.close(); |
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871 } catch (IOException e1) { |
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872 } |
| 87 | 873 /* if socket closed cliList.remove(newCli); */ |
| 54 | 874 } |
| 875 } | |
|
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876 |
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877 public void writeToClient(final OutputStream os, |
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878 LinkedList<ByteBuffer> bufs, int inputIndex) |
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879 throws IOException { |
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880 while(inputIndex < bufs.size()) { |
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881 ByteBuffer b = bufs.get(inputIndex++); |
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882 os.write(b.array(), b.position(), b.limit()); |
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883 } |
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884 os.flush(); |
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885 } |
| 54 | 886 }; |
| 80 | 887 clients++; |
| 54 | 888 new Thread(sender).start(); |
| 889 | |
| 890 } | |
| 66 | 891 |
| 892 | |
|
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893 public void dump32(LinkedList<ByteBuffer>bufs) { |
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894 int len =0; |
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895 for(ByteBuffer b: bufs) len += b.remaining(); |
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896 ByteBuffer top = bufs.getFirst(); |
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897 ByteBuffer end = bufs.getLast(); |
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898 System.err.println("length: "+len); |
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899 System.err.print("head 0: "); |
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900 for(int i = 0; i<16 && i < top.remaining(); i++) { |
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901 System.err.print(" "+ top.get(i)); |
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902 } |
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903 System.err.print("tail 0: "); |
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904 for(int i = 0; i<16 && i < end.remaining(); i++) { |
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905 System.err.print(" "+end.get(i)); |
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906 } |
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907 System.err.println(); |
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908 } |
| 88 | 909 |
| 910 @Test | |
| 911 public void test1() { | |
| 912 try { | |
| 90 | 913 LinkedList<ByteBuffer> in = new LinkedList<ByteBuffer>(); |
| 914 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); | |
| 915 LinkedList<ByteBuffer> out2 = new LinkedList<ByteBuffer>(); | |
| 107 | 916 // if (false) { |
| 917 // for(int i=0;i<10;i++) { | |
| 918 // in.add(ByteBuffer.wrap("test1".getBytes())); | |
| 919 // in.add(ByteBuffer.wrap("test2".getBytes())); | |
| 920 // in.add(ByteBuffer.wrap("test3".getBytes())); | |
| 921 // in.add(ByteBuffer.wrap("test44".getBytes())); | |
| 922 // } | |
| 923 // } else | |
| 924 { | |
| 106 | 925 String t = ""; |
| 926 for(int i=0;i<10;i++) { | |
| 927 t += "test1"; | |
| 928 t += "test2"; | |
| 929 t += "test3"; | |
| 930 t += "test44"; | |
| 931 } | |
| 932 in.add(ByteBuffer.wrap(t.getBytes())); | |
| 933 } | |
| 934 | |
| 92 | 935 LinkedList<ByteBuffer> in1 = clone(in); |
| 90 | 936 |
| 88 | 937 Deflater deflater = new Deflater(); |
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938 zip(deflater,in,0,out); |
| 92 | 939 // LinkedList<ByteBuffer> out3 = clone(out); zipped result is depend on deflator's state |
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940 unzip(inflater, out, 0,out2, INFLATE_BUFSIZE); |
| 106 | 941 // inflater.reset(); |
| 92 | 942 equalByteBuffers(in1, out2); |
| 943 LinkedList<ByteBuffer> out4 = new LinkedList<ByteBuffer>(); | |
| 104 | 944 deflater = new Deflater(); |
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945 zip(deflater,out2,0,out4); |
| 92 | 946 LinkedList<ByteBuffer> out5 = new LinkedList<ByteBuffer>(); |
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947 unzip(inflater,out4,0, out5, INFLATE_BUFSIZE); |
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948 int len = equalByteBuffers(in1,out5); |
| 92 | 949 |
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950 System.out.println("Test Ok. "+len); |
| 88 | 951 } catch (Exception e) { |
| 952 assertEquals(0,1); | |
| 953 } | |
| 954 } | |
| 955 | |
| 92 | 956 private LinkedList<ByteBuffer> clone(LinkedList<ByteBuffer> in) { |
| 957 LinkedList<ByteBuffer> copy = new LinkedList<ByteBuffer>(); | |
| 958 for(ByteBuffer b: in) { | |
| 959 ByteBuffer c = b.duplicate(); | |
| 960 copy.add(c); | |
| 961 } | |
| 962 return copy; | |
| 963 } | |
| 964 | |
| 93 | 965 |
| 966 | |
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967 public int equalByteBuffers(LinkedList<ByteBuffer> in, |
| 92 | 968 LinkedList<ByteBuffer> out2) { |
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969 int len = 0; |
| 93 | 970 Iterable<Byte> i = byteBufferIterator(in); |
| 971 Iterator<Byte> o = byteBufferIterator(out2).iterator(); | |
| 972 | |
| 973 for(int b: i) { | |
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974 len ++; |
| 93 | 975 if (o.hasNext()) { |
| 976 int c = o.next(); | |
| 977 assertEquals(b,c); | |
| 978 } else | |
| 979 assertEquals(0,1); | |
| 980 } | |
| 104 | 981 if (o.hasNext()) |
| 982 assertEquals(0,1); | |
| 93 | 983 // System.out.println(); |
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984 return len; |
| 93 | 985 } |
| 986 | |
| 987 private Iterable<Byte> byteBufferIterator(final LinkedList<ByteBuffer> in) { | |
| 988 return new Iterable<Byte>() { | |
| 989 public Iterator<Byte> iterator() { | |
| 990 return new Iterator<Byte>() { | |
| 991 int bytes = 0; | |
| 992 int buffers = 0; | |
| 993 public boolean hasNext() { | |
| 104 | 994 for(;;) { |
| 995 if (buffers>=in.size()) return false; | |
| 996 ByteBuffer b = in.get(buffers); | |
| 997 if (! (bytes<b.remaining())) { | |
| 998 buffers ++; bytes=0; | |
| 999 } else return true; | |
| 1000 } | |
| 92 | 1001 } |
| 93 | 1002 public Byte next() { |
| 104 | 1003 ByteBuffer bf =in.get(buffers); |
| 93 | 1004 byte b = bf.get(bytes++); |
| 1005 if (bf.remaining()<=bytes) { | |
| 1006 buffers++; | |
| 1007 bytes = 0; | |
| 1008 } | |
| 1009 // System.out.print(b); | |
| 1010 return b; | |
| 1011 } | |
| 1012 public void remove() { | |
| 1013 } | |
| 1014 }; | |
| 92 | 1015 } |
| 93 | 1016 }; |
| 92 | 1017 } |
| 1018 | |
| 54 | 1019 } |
| 66 | 1020 |
| 1021 |