Mercurial > hg > Members > nobuyasu > tightVNCClient
annotate src/myVncClient/MyRfbProto.java @ 93:71bfbb5241bf
modify CuiMyVncClient
| author | e085711 |
|---|---|
| date | Thu, 22 Sep 2011 05:43:48 +0900 |
| parents | d89e03d99b7f |
| children | 53236c2c1229 |
| rev | line source |
|---|---|
| 17 | 1 package myVncClient; |
| 45 | 2 |
| 69 | 3 |
| 19 | 4 import java.awt.Graphics; |
| 5 import java.awt.Image; | |
| 18 | 6 import java.awt.image.BufferedImage; |
| 65 | 7 import java.io.BufferedInputStream; |
| 19 | 8 import java.io.BufferedOutputStream; |
| 15 | 9 import java.io.BufferedReader; |
| 18 | 10 import java.io.ByteArrayInputStream; |
| 19 | 11 import java.io.ByteArrayOutputStream; |
| 65 | 12 import java.io.DataInputStream; |
| 7 | 13 import java.io.IOException; |
| 27 | 14 import java.io.InputStream; |
| 15 | 15 import java.io.InputStreamReader; |
| 18 | 16 import java.net.BindException; |
| 10 | 17 import java.net.ServerSocket; |
| 7 | 18 import java.net.Socket; |
| 60 | 19 import java.nio.ByteBuffer; |
| 20 import java.util.Iterator; | |
| 10 | 21 import java.util.LinkedList; |
| 8 | 22 |
| 18 | 23 import javax.imageio.ImageIO; |
| 24 | |
| 45 | 25 import myVncClient.MulticastQueue.Client; |
| 26 | |
| 25 | 27 import java.util.concurrent.ExecutorService; |
| 69 | 28 import java.util.concurrent.atomic.AtomicBoolean; |
| 29 import java.util.concurrent.atomic.AtomicInteger; | |
| 60 | 30 import java.util.zip.DataFormatException; |
| 31 import java.util.zip.Deflater; | |
| 32 import java.util.zip.Inflater; | |
| 25 | 33 import java.io.OutputStream; |
| 7 | 34 |
| 60 | 35 public |
| 69 | 36 class MyRfbProto extends RfbProto { |
| 89 | 37 final static String versionMsg_3_855 = "RFB 003.855\n"; |
| 38 | |
| 60 | 39 /** |
| 89 | 40 * CheckMillis is one of new msgType for RFB 3.855. |
| 60 | 41 */ |
| 42 final static byte SpeedCheckMillis = 4; | |
| 91 | 43 final static byte WriteJpegData = 5; |
| 44 | |
| 60 | 45 private static final int INFLATE_BUFSIZE = 1024*100; |
| 46 boolean printStatusFlag = false; | |
| 47 long startCheckTime; | |
| 45 | 48 |
| 15 | 49 private int messageType; |
| 50 private int rectangles; | |
| 19 | 51 private int rectX; |
| 52 private int rectY; | |
| 53 private int rectW; | |
| 54 private int rectH; | |
| 15 | 55 private int encoding; |
| 19 | 56 private int zLen; |
| 69 | 57 private boolean clicomp = false; |
| 15 | 58 |
| 19 | 59 private ServerSocket servSock; |
| 18 | 60 private int acceptPort; |
| 8 | 61 private byte initData[]; |
| 45 | 62 private LinkedList<Socket> cliListTmp; |
| 63 private LinkedList<Socket> cliList; | |
| 19 | 64 boolean createBimgFlag; |
| 90 | 65 boolean proxyFlag = false; |
| 66 | |
| 72 | 67 //override |
| 68 InterfaceForViewer viewer; | |
| 34 | 69 |
| 25 | 70 ExecutorService executor; |
| 45 | 71 |
| 18 | 72 byte[] pngBytes; |
| 45 | 73 |
| 60 | 74 // private MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MostRecentMultiCast<LinkedList<ByteBuffer>>(10); |
| 75 private MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MulticastQueue<LinkedList<ByteBuffer>>(); | |
| 76 private int clients = 0; | |
| 77 private Inflater inflater = new Inflater(); | |
| 69 | 78 private Deflater deflater = new Deflater(); |
| 90 | 79 |
| 69 | 80 public |
| 81 MyRfbProto() throws IOException { | |
| 82 } | |
| 83 | |
| 45 | 84 MyRfbProto(String h, int p, VncViewer v) throws IOException { |
| 7 | 85 super(h, p, v); |
| 45 | 86 cliList = new LinkedList<Socket>(); |
| 87 cliListTmp = new LinkedList<Socket>(); | |
| 19 | 88 createBimgFlag = false; |
| 45 | 89 // sendThreads = new LinkedList<Thread>(); |
| 90 // executor = Executors.newCachedThreadPool(); | |
| 91 // executor = Executors.newSingleThreadExecutor(); | |
| 10 | 92 } |
| 89 | 93 |
| 90 | 94 MyRfbProto(String h, int p, MyVncClient v) throws IOException { |
| 93 | 95 super(h, p); |
| 91 | 96 this.viewer = v; |
| 90 | 97 cliList = new LinkedList<Socket>(); |
| 98 cliListTmp = new LinkedList<Socket>(); | |
| 99 createBimgFlag = false; | |
| 100 proxyFlag = false; | |
| 101 // sendThreads = new LinkedList<Thread>(); | |
| 102 // executor = Executors.newCachedThreadPool(); | |
| 103 // executor = Executors.newSingleThreadExecutor(); | |
| 104 } | |
| 93 | 105 |
| 106 MyRfbProto(String h, int p, CuiMyVncClient v) throws IOException { | |
| 107 super(h, p); | |
| 108 this.viewer = v; | |
| 109 cliList = new LinkedList<Socket>(); | |
| 110 cliListTmp = new LinkedList<Socket>(); | |
| 111 createBimgFlag = false; | |
| 112 proxyFlag = false; | |
| 113 // sendThreads = new LinkedList<Thread>(); | |
| 114 // executor = Executors.newCachedThreadPool(); | |
| 115 // executor = Executors.newSingleThreadExecutor(); | |
| 116 } | |
| 117 | |
| 118 | |
| 15 | 119 MyRfbProto(String h, int p) throws IOException { |
| 120 super(h, p); | |
| 45 | 121 cliList = new LinkedList<Socket>(); |
| 122 cliListTmp = new LinkedList<Socket>(); | |
| 19 | 123 createBimgFlag = false; |
| 45 | 124 // sendThreads = new LinkedList<Thread>(); |
| 125 // executor = Executors.newCachedThreadPool(); | |
| 126 // executor = Executors.newSingleThreadExecutor(); | |
| 15 | 127 } |
| 72 | 128 |
| 129 | |
| 90 | 130 void sendProxyFlag(OutputStream os) throws IOException { |
| 131 if(proxyFlag) os.write(1); | |
| 132 else os.write(0); | |
| 133 } | |
| 89 | 134 |
| 90 | 135 boolean readProxyFlag() throws IOException{ |
| 136 int flag = readU8(); | |
| 137 if(flag == 1) | |
| 138 return true; | |
| 139 else | |
| 140 return false; | |
| 141 } | |
| 72 | 142 |
| 90 | 143 /* |
| 144 void sendPortNumber(OutputStream os) throws IOException { | |
| 145 byte[] b = new byte[4]; | |
| 146 b = castIntByte(geth.port); | |
| 147 os.write(b); | |
| 72 | 148 } |
| 90 | 149 */ |
| 150 | |
| 73 | 151 byte[] readEchoPort() throws Exception { |
| 152 byte[] b = new byte[4]; | |
| 153 readFully(b); | |
| 154 | |
| 155 return b; | |
| 156 } | |
| 157 | |
| 158 | |
| 72 | 159 |
| 69 | 160 void changeParent(String h, int p) throws IOException { |
| 161 host = h; | |
| 162 port = p; | |
| 84 | 163 |
| 69 | 164 sock = new Socket(host, port); |
| 165 is = new DataInputStream(new BufferedInputStream(sock.getInputStream(), | |
| 166 16384)); | |
| 167 os = sock.getOutputStream(); | |
| 168 | |
| 169 timing = false; | |
| 170 timeWaitedIn100us = 5; | |
| 171 timedKbits = 0; | |
| 172 } | |
| 173 | |
| 28 | 174 // over write |
| 27 | 175 void writeVersionMsg() throws IOException { |
| 176 clientMajor = 3; | |
| 89 | 177 if (serverMinor == 855) { |
| 178 clientMinor = 855; | |
| 179 os.write(versionMsg_3_855.getBytes()); | |
| 180 } else if (serverMajor > 3 || serverMinor >= 8) { | |
| 27 | 181 clientMinor = 8; |
| 182 os.write(versionMsg_3_8.getBytes()); | |
| 183 } else if (serverMinor >= 7) { | |
| 184 clientMinor = 7; | |
| 185 os.write(versionMsg_3_7.getBytes()); | |
| 186 } else { | |
| 187 clientMinor = 3; | |
| 188 os.write(versionMsg_3_3.getBytes()); | |
| 189 } | |
| 190 protocolTightVNC = false; | |
| 191 initCapabilities(); | |
| 192 } | |
| 193 | |
| 45 | 194 void initServSock(int port) throws IOException { |
| 10 | 195 servSock = new ServerSocket(port); |
| 18 | 196 acceptPort = port; |
| 197 } | |
| 45 | 198 |
| 69 | 199 // 5550を開けるが、開いてないなら+1のポートを開ける。 |
| 60 | 200 void selectPort(int p) { |
| 201 int port = p; | |
| 45 | 202 while (true) { |
| 203 try { | |
| 60 | 204 initServSock(port); |
| 18 | 205 break; |
| 45 | 206 } catch (BindException e) { |
| 60 | 207 port++; |
| 18 | 208 continue; |
| 45 | 209 } catch (IOException e) { |
| 19 | 210 |
| 18 | 211 } |
| 212 } | |
| 60 | 213 System.out.println("accept port = " + port); |
| 18 | 214 } |
| 45 | 215 |
| 216 int getAcceptPort() { | |
| 18 | 217 return acceptPort; |
| 7 | 218 } |
| 45 | 219 |
| 10 | 220 void setSoTimeout(int num) throws IOException { |
| 221 servSock.setSoTimeout(num); | |
| 222 } | |
| 45 | 223 |
| 10 | 224 Socket accept() throws IOException { |
| 225 return servSock.accept(); | |
| 226 } | |
| 227 | |
| 45 | 228 void addSock(Socket sock) { |
| 10 | 229 cliList.add(sock); |
| 230 } | |
| 45 | 231 |
| 232 void addSockTmp(Socket sock) { | |
| 233 System.out.println("connected " + sock.getInetAddress()); | |
| 19 | 234 cliListTmp.add(sock); |
| 235 } | |
| 45 | 236 |
| 8 | 237 boolean markSupported() { |
| 7 | 238 return is.markSupported(); |
| 239 } | |
| 45 | 240 |
| 8 | 241 void readServerInit() throws IOException { |
| 45 | 242 |
| 60 | 243 is.mark(255); |
| 8 | 244 skipBytes(20); |
| 245 int nlen = readU32(); | |
| 45 | 246 int blen = 20 + 4 + nlen; |
| 10 | 247 initData = new byte[blen]; |
| 60 | 248 is.reset(); |
| 10 | 249 |
| 60 | 250 is.mark(blen); |
| 8 | 251 readFully(initData); |
| 60 | 252 is.reset(); |
| 45 | 253 |
| 7 | 254 framebufferWidth = readU16(); |
| 255 framebufferHeight = readU16(); | |
| 256 bitsPerPixel = readU8(); | |
| 257 depth = readU8(); | |
| 258 bigEndian = (readU8() != 0); | |
| 259 trueColour = (readU8() != 0); | |
| 260 redMax = readU16(); | |
| 261 greenMax = readU16(); | |
| 262 blueMax = readU16(); | |
| 263 redShift = readU8(); | |
| 264 greenShift = readU8(); | |
| 265 blueShift = readU8(); | |
| 8 | 266 byte[] pad = new byte[3]; |
| 267 readFully(pad); | |
| 268 int nameLength = readU32(); | |
| 269 byte[] name = new byte[nameLength]; | |
| 270 readFully(name); | |
| 271 desktopName = new String(name); | |
| 7 | 272 |
| 8 | 273 // Read interaction capabilities (TightVNC protocol extensions) |
| 274 if (protocolTightVNC) { | |
| 275 int nServerMessageTypes = readU16(); | |
| 276 int nClientMessageTypes = readU16(); | |
| 277 int nEncodingTypes = readU16(); | |
| 278 readU16(); | |
| 279 readCapabilityList(serverMsgCaps, nServerMessageTypes); | |
| 280 readCapabilityList(clientMsgCaps, nClientMessageTypes); | |
| 281 readCapabilityList(encodingCaps, nEncodingTypes); | |
| 282 } | |
| 283 | |
| 284 inNormalProtocol = true; | |
| 7 | 285 } |
| 286 | |
| 45 | 287 void sendRfbVersion(OutputStream os) throws IOException { |
| 90 | 288 os.write(versionMsg_3_855.getBytes()); |
| 289 // os.write(versionMsg_3_8.getBytes()); | |
| 27 | 290 } |
| 45 | 291 |
| 90 | 292 int readVersionMsg(InputStream is, OutputStream os) throws IOException { |
| 293 | |
| 294 byte[] b = new byte[12]; | |
| 295 | |
| 296 is.read(b); | |
| 297 | |
| 298 if ((b[0] != 'R') || (b[1] != 'F') || (b[2] != 'B') || (b[3] != ' ') | |
| 299 || (b[4] < '0') || (b[4] > '9') || (b[5] < '0') || (b[5] > '9') | |
| 300 || (b[6] < '0') || (b[6] > '9') || (b[7] != '.') | |
| 301 || (b[8] < '0') || (b[8] > '9') || (b[9] < '0') || (b[9] > '9') | |
| 302 || (b[10] < '0') || (b[10] > '9') || (b[11] != '\n')) { | |
| 303 throw new IOException("Host " + host + " port " + port | |
| 304 + " is not an RFB server"); | |
| 305 } | |
| 306 | |
| 307 int rfbMajor = (b[4] - '0') * 100 + (b[5] - '0') * 10 + (b[6] - '0'); | |
| 308 int rfbMinor = (b[8] - '0') * 100 + (b[9] - '0') * 10 + (b[10] - '0'); | |
| 309 | |
| 310 if (rfbMajor < 3) { | |
| 311 throw new IOException( | |
| 312 "RFB server does not support protocol version 3"); | |
| 313 } | |
| 314 | |
| 315 if (rfbMinor == 855) { | |
| 316 sendProxyFlag(os); | |
| 317 // if(proxyFlag)sendPortNumber(os); | |
| 318 } | |
| 319 return rfbMinor; | |
| 320 | |
| 321 } void readVersionMsg(InputStream is) throws IOException { | |
| 28 | 322 |
| 323 byte[] b = new byte[12]; | |
| 324 | |
| 325 is.read(b); | |
| 326 | |
| 327 if ((b[0] != 'R') || (b[1] != 'F') || (b[2] != 'B') || (b[3] != ' ') | |
| 328 || (b[4] < '0') || (b[4] > '9') || (b[5] < '0') || (b[5] > '9') | |
| 329 || (b[6] < '0') || (b[6] > '9') || (b[7] != '.') | |
| 330 || (b[8] < '0') || (b[8] > '9') || (b[9] < '0') || (b[9] > '9') | |
| 331 || (b[10] < '0') || (b[10] > '9') || (b[11] != '\n')) { | |
| 332 throw new IOException("Host " + host + " port " + port | |
| 333 + " is not an RFB server"); | |
| 334 } | |
| 335 | |
| 336 serverMajor = (b[4] - '0') * 100 + (b[5] - '0') * 10 + (b[6] - '0'); | |
| 337 serverMinor = (b[8] - '0') * 100 + (b[9] - '0') * 10 + (b[10] - '0'); | |
| 338 | |
| 339 if (serverMajor < 3) { | |
| 340 throw new IOException( | |
| 341 "RFB server does not support protocol version 3"); | |
| 45 | 342 } |
| 343 | |
| 73 | 344 |
| 45 | 345 } |
| 346 | |
| 73 | 347 |
| 27 | 348 void sendSecurityType(OutputStream os) throws IOException { |
| 349 // number-of-security-types | |
| 350 os.write(1); | |
| 45 | 351 // security-types |
| 27 | 352 // 1:None |
| 353 os.write(1); | |
| 354 } | |
| 45 | 355 |
| 28 | 356 void readSecType(InputStream is) throws IOException { |
| 357 byte[] b = new byte[1]; | |
| 358 is.read(b); | |
| 359 | |
| 360 } | |
| 45 | 361 |
| 28 | 362 void sendSecResult(OutputStream os) throws IOException { |
| 363 byte[] b = castIntByte(0); | |
| 364 os.write(b); | |
| 365 } | |
| 45 | 366 |
| 27 | 367 void readClientInit(InputStream in) throws IOException { |
| 368 byte[] b = new byte[0]; | |
| 369 in.read(b); | |
| 370 } | |
| 45 | 371 |
| 372 void sendInitData(OutputStream os) throws IOException { | |
| 373 os.write(initData); | |
| 8 | 374 } |
| 10 | 375 |
| 45 | 376 |
| 377 void sendPngImage() { | |
| 378 try { | |
| 379 for (Socket cli : cliListTmp) { | |
| 380 try { | |
| 19 | 381 sendPngData(cli); |
| 382 addSock(cli); | |
| 45 | 383 } catch (IOException e) { |
| 19 | 384 // if socket closed |
| 385 cliListTmp.remove(cli); | |
| 386 } | |
| 387 } | |
| 45 | 388 // System.out.println("cliSize="+cliSize()); |
| 389 } catch (Exception e) { | |
| 19 | 390 } |
| 391 cliListTmp.clear(); | |
| 392 } | |
| 393 | |
| 15 | 394 boolean ready() throws IOException { |
| 395 BufferedReader br = new BufferedReader(new InputStreamReader(is)); | |
| 396 return br.ready(); | |
| 45 | 397 } |
| 10 | 398 |
| 45 | 399 int cliSize() { |
| 10 | 400 return cliList.size(); |
| 45 | 401 } |
| 402 | |
| 403 void printNumBytesRead() { | |
| 404 System.out.println("numBytesRead=" + numBytesRead); | |
| 405 } | |
| 406 | |
|
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407 |
| 45 | 408 |
| 409 void regiFramebufferUpdate() throws IOException { | |
| 60 | 410 is.mark(20); |
| 411 messageType = readU8(); // 0 | |
| 412 skipBytes(1); // 1 | |
| 413 rectangles = readU16(); // 2 | |
| 414 rectX = readU16(); // 4 | |
| 415 rectY = readU16(); // 6 | |
| 416 rectW = readU16(); // 8 | |
| 417 rectH = readU16(); // 10 | |
| 418 encoding = readU32(); // 12 | |
| 78 | 419 // System.out.println("encoding = "+encoding); |
| 69 | 420 if (encoding == EncodingZRLE|| encoding==EncodingZRLEE||encoding==EncodingZlib) |
|
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421 zLen = readU32(); |
| 60 | 422 else |
| 423 zLen = 0; | |
| 424 is.reset(); | |
| 69 | 425 |
| 60 | 426 } |
| 427 | |
| 428 int checkAndMark() throws IOException { | |
| 429 int dataLen; | |
| 430 switch (encoding) { | |
| 431 case RfbProto.EncodingRaw: | |
| 432 dataLen = rectW * rectH * 4 + 16; | |
| 433 is.mark(dataLen); | |
| 434 break; | |
| 435 case RfbProto.EncodingCopyRect: | |
| 436 dataLen = 16 + 4; | |
| 437 is.mark(dataLen); | |
| 438 break; | |
| 439 case RfbProto.EncodingRRE: | |
| 440 case RfbProto.EncodingCoRRE: | |
| 441 case RfbProto.EncodingHextile: | |
| 442 case RfbProto.EncodingTight: | |
| 443 dataLen = zLen + 20; | |
| 444 is.mark(dataLen); | |
| 445 break; | |
| 446 case RfbProto.EncodingZlib: | |
| 447 case RfbProto.EncodingZRLE: | |
| 69 | 448 case RfbProto.EncodingZRLEE: |
| 60 | 449 dataLen = zLen + 20; |
| 450 is.mark(dataLen); | |
| 451 break; | |
| 452 case RfbProto.EncodingXCursor: | |
| 453 case RfbProto.EncodingRichCursor: | |
| 454 int pixArray = rectW * rectH * 4; | |
| 455 int u8Array = (int)Math.floor((rectW + 7)/8) * rectH; | |
| 456 dataLen = pixArray + u8Array; | |
| 457 printFramebufferUpdate(); | |
| 458 is.mark(dataLen); | |
| 459 break; | |
| 460 default: | |
| 461 dataLen = 1000000; | |
| 462 is.mark(dataLen); | |
| 463 } | |
|
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464 return dataLen; |
|
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465 } |
| 60 | 466 |
| 45 | 467 |
| 60 | 468 void sendDataToClient() throws Exception { |
|
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469 regiFramebufferUpdate(); |
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034528dfb650
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470 int dataLen = checkAndMark(); |
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471 readSendData(dataLen); |
| 25 | 472 } |
| 45 | 473 |
| 474 BufferedImage createBufferedImage(Image img) { | |
| 475 BufferedImage bimg = new BufferedImage(img.getWidth(null), | |
| 476 img.getHeight(null), BufferedImage.TYPE_INT_RGB); | |
| 19 | 477 |
| 478 Graphics g = bimg.getGraphics(); | |
| 479 g.drawImage(img, 0, 0, null); | |
| 480 g.dispose(); | |
| 481 return bimg; | |
| 482 } | |
| 483 | |
| 45 | 484 void createPngBytes(BufferedImage bimg) throws IOException { |
| 485 pngBytes = getImageBytes(bimg, "png"); | |
| 19 | 486 } |
| 45 | 487 |
| 488 byte[] getBytes(BufferedImage img) throws IOException { | |
| 19 | 489 byte[] b = getImageBytes(img, "png"); |
| 490 return b; | |
| 15 | 491 } |
| 45 | 492 |
| 493 byte[] getImageBytes(BufferedImage image, String imageFormat) | |
| 494 throws IOException { | |
| 19 | 495 ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| 496 BufferedOutputStream os = new BufferedOutputStream(bos); | |
| 497 image.flush(); | |
| 498 ImageIO.write(image, imageFormat, os); | |
| 499 os.flush(); | |
| 500 os.close(); | |
| 501 return bos.toByteArray(); | |
| 502 } | |
| 503 | |
| 45 | 504 void sendPngData(Socket sock) throws IOException { |
| 19 | 505 byte[] dataLength = castIntByte(pngBytes.length); |
| 506 sock.getOutputStream().write(dataLength); | |
| 507 sock.getOutputStream().write(pngBytes); | |
| 508 } | |
| 45 | 509 |
| 510 byte[] castIntByte(int len) { | |
| 19 | 511 byte[] b = new byte[4]; |
| 45 | 512 b[0] = (byte) ((len >>> 24) & 0xFF); |
| 513 b[1] = (byte) ((len >>> 16) & 0xFF); | |
| 514 b[2] = (byte) ((len >>> 8) & 0xFF); | |
| 515 b[3] = (byte) ((len >>> 0) & 0xFF); | |
| 19 | 516 return b; |
| 517 } | |
| 45 | 518 |
| 519 BufferedImage createBimg() throws IOException { | |
| 19 | 520 BufferedImage bimg = ImageIO.read(new ByteArrayInputStream(pngBytes)); |
| 521 return bimg; | |
| 522 } | |
| 69 | 523 |
| 45 | 524 void printFramebufferUpdate() { |
| 525 | |
| 15 | 526 System.out.println("messageType=" + messageType); |
| 45 | 527 System.out.println("rectangles=" + rectangles); |
| 15 | 528 System.out.println("encoding=" + encoding); |
| 60 | 529 System.out.println("rectX = "+rectX+": rectY = "+rectY); |
| 530 System.out.println("rectW = "+rectW+": rectH = "+rectH); | |
| 45 | 531 switch (encoding) { |
| 19 | 532 case RfbProto.EncodingRaw: |
| 45 | 533 System.out.println("rectW * rectH * 4 + 16 =" + rectW * rectH * 4 |
| 534 + 16); | |
| 19 | 535 break; |
| 536 default: | |
| 537 } | |
| 15 | 538 } |
| 60 | 539 |
| 91 | 540 void sendFullScreen(String imageFormat, OutputStream os) { |
| 541 BufferedImage bimg = getBufferedImage(viewer.getScreenImage()); | |
| 542 try { | |
| 543 byte[] b = getImageBytes(bimg, imageFormat); | |
| 544 // int len = b.length; | |
| 545 byte[] length = castIntByte(b.length); | |
| 93 | 546 // System.out.println("jpeg length = " + b.length); |
| 91 | 547 os.write((byte)WriteJpegData); |
| 548 os.write(length); // length of jpeg data | |
| 549 os.write(b); // jpeg data | |
| 550 os.flush(); | |
| 551 } catch (IOException e) { | |
| 552 e.printStackTrace(); | |
| 553 } | |
| 554 } | |
| 93 | 555 |
| 556 // unnecessary method | |
| 91 | 557 void readWriteJpegData() throws IOException { |
| 558 byte[] b = readJpegData(); | |
| 559 viewer.writeScreenData(b, "jpeg"); | |
| 560 } | |
| 561 | |
| 562 byte[] readJpegData() throws IOException { | |
| 563 int len = readU32(); | |
| 564 byte[] b = new byte[len]; | |
| 565 readFully(b); | |
| 566 return b; | |
| 567 } | |
| 568 | |
| 569 | |
| 570 public BufferedImage getBufferedImage(Image img) { | |
| 571 BufferedImage bimg = new BufferedImage(framebufferWidth, framebufferHeight, BufferedImage.TYPE_INT_RGB); | |
| 572 Graphics g = bimg.getGraphics(); | |
| 573 g.drawImage(img, 0, 0, null); | |
| 574 g.dispose(); | |
| 575 return bimg; | |
| 576 } | |
| 577 | |
| 578 | |
| 60 | 579 void readSpeedCheck() throws IOException { |
| 580 byte[] b = new byte[1]; | |
| 581 readFully(b); | |
| 582 } | |
| 583 | |
| 584 void startSpeedCheck() { | |
| 585 ByteBuffer b = ByteBuffer.allocate(10); | |
| 586 b.put((byte)SpeedCheckMillis); | |
| 587 b.flip(); | |
| 588 startCheckTime = System.currentTimeMillis(); | |
| 589 System.out.println("startChckTime = "+ startCheckTime); | |
| 590 LinkedList<ByteBuffer>bufs = new LinkedList<ByteBuffer>(); | |
| 591 bufs.add(b); | |
| 592 multicastqueue.put(bufs); | |
| 593 } | |
| 594 | |
| 595 void endSpeedCheck() { | |
| 596 long accTime = System.currentTimeMillis(); | |
| 597 long time = accTime - startCheckTime; | |
| 598 System.out.println("checkMillis: " + time); | |
| 599 } | |
| 600 | |
| 601 | |
| 602 synchronized void changeStatusFlag() { | |
| 603 printStatusFlag = true; | |
| 604 } | |
| 605 | |
| 606 void printMills() { | |
| 607 if(printStatusFlag) { | |
| 608 | |
| 609 changeStatusFlag(); | |
| 610 } else { | |
| 611 changeStatusFlag(); | |
| 612 } | |
| 613 } | |
| 614 | |
| 615 void speedCheckMillis() { | |
| 616 Runnable stdin = new Runnable() { | |
| 617 public void run() { | |
| 618 int c; | |
| 619 try { | |
| 620 while( (c = System.in.read()) != -1 ) { | |
| 621 switch(c) { | |
| 622 case 's': | |
| 623 break; | |
| 624 default: | |
| 625 startSpeedCheck(); | |
| 626 break; | |
| 627 } | |
| 628 } | |
| 629 }catch(IOException e){ | |
| 630 System.out.println(e); | |
| 631 } | |
| 632 } | |
| 633 }; | |
| 634 | |
| 635 new Thread(stdin).start(); | |
| 636 } | |
| 637 | |
| 638 /** | |
| 639 * gzip byte arrays | |
| 640 * @param deflater | |
| 641 * @param inputs | |
| 642 * byte data[] | |
| 643 * @param inputIndex | |
| 644 * @param outputs | |
| 645 * byte data[] | |
| 646 * @return byte length in last byte array | |
| 647 * @throws IOException | |
| 648 */ | |
| 649 public int zip(Deflater deflater,LinkedList<ByteBuffer> inputs, int inputIndex, LinkedList<ByteBuffer> outputs) throws IOException { | |
| 650 int len = 0; | |
| 651 ByteBuffer c1= ByteBuffer.allocate(INFLATE_BUFSIZE); | |
| 652 while(inputIndex < inputs.size() ) { | |
| 653 ByteBuffer b1 = inputs.get(inputIndex++); | |
| 654 deflater.setInput(b1.array(),b1.position(),b1.remaining()); | |
| 69 | 655 /** |
| 656 * If we finish() stream and reset() it, Deflater start new gzip stream, this makes continuous zlib reader unhappy. | |
| 657 * if we remove finish(), Deflater.deflate() never flushes its output. The original zlib deflate has flush flag. I'm pretty | |
| 658 * sure this a kind of bug of Java library. | |
| 659 */ | |
| 660 if (inputIndex==inputs.size()) | |
| 661 deflater.finish(); | |
| 662 int len1 = 0; | |
| 60 | 663 do { |
| 69 | 664 len1 = deflater.deflate(c1.array(),c1.position(),c1.remaining()); |
| 60 | 665 if (len1>0) { |
| 666 len += len1; | |
| 667 c1.position(c1.position()+len1); | |
| 668 if (c1.remaining()==0) { | |
| 669 c1.flip(); outputs.addLast(c1); | |
| 670 c1 = ByteBuffer.allocate(INFLATE_BUFSIZE); | |
| 671 } | |
| 672 } | |
| 69 | 673 } while (len1 >0 || !deflater.needsInput()); // &&!deflater.finished()); |
| 60 | 674 } |
| 675 if (c1.position()!=0) { | |
| 676 c1.flip(); outputs.addLast(c1); | |
| 677 } | |
| 678 deflater.reset(); | |
| 679 return len; | |
| 680 } | |
| 681 | |
| 682 /** | |
| 683 * gunzip byte arrays | |
| 684 * @param inflater | |
| 685 * @param inputs | |
| 686 * byte data[] | |
| 687 * @param outputs | |
| 688 * byte data[] | |
| 689 *@return number of total bytes | |
| 690 * @throws IOException | |
| 691 */ | |
| 69 | 692 public int unzip(Inflater inflater, LinkedList<ByteBuffer> inputs, int inputIndex, LinkedList<ByteBuffer> outputs,int bufSize) |
| 60 | 693 throws DataFormatException { |
| 694 int len=0; | |
| 69 | 695 ByteBuffer buf = ByteBuffer.allocate(bufSize); |
| 60 | 696 while (inputIndex < inputs.size()) { |
| 697 ByteBuffer input = inputs.get(inputIndex++); | |
| 698 inflater.setInput(input.array(),input.position(),input.limit()); | |
| 69 | 699 // if (inputIndex==inputs.size()) if inflater/deflater has symmetry, we need this |
| 700 // inflater.end(); but this won't work | |
| 60 | 701 do { |
| 702 int len0 = inflater.inflate(buf.array(),buf.position(),buf.remaining()); | |
| 703 if (len0>0) { | |
| 704 buf.position(buf.position()+len0); | |
| 705 len += len0; | |
| 706 if (buf.remaining()==0) { | |
| 707 buf.flip(); | |
| 708 outputs.addLast(buf); | |
| 69 | 709 buf = ByteBuffer.allocate(bufSize); |
| 60 | 710 } |
| 711 } | |
| 712 } while (!inflater.needsInput()); | |
| 713 } | |
| 714 if (buf.position()!=0) { | |
| 715 buf.flip(); | |
| 716 outputs.addLast(buf); | |
| 717 } | |
| 718 return len; | |
| 719 } | |
| 720 | |
| 69 | 721 /** |
| 722 * send data to clients | |
| 723 * @param dataLen | |
| 724 * @throws IOException | |
| 725 * @throws DataFormatException | |
| 726 * | |
| 727 * Zlibed packet is compressed in context dependent way, that is, it have to send from the beginning. But this is | |
| 728 * impossible. So we have to compress it again for each clients. Separate deflater for each clients is necessary. | |
| 729 * | |
| 730 * Java's deflater does not support flush. This means to get the result, we have to finish the compression. Reseting | |
| 731 * start new compression, but it is not accepted well in zlib continuous reading. So we need new Encoding ZRLEE | |
| 732 * which reset decoder for each packet. ZRLEE can be invisible from user, but it have to be implemented in the clients. | |
| 733 * ZRLEE compression is not context dependent, so no recompression is necessary. | |
| 734 */ | |
| 60 | 735 void readSendData(int dataLen) throws IOException, DataFormatException { |
| 736 LinkedList<ByteBuffer>bufs = new LinkedList<ByteBuffer>(); | |
| 737 ByteBuffer header = ByteBuffer.allocate(16); | |
| 738 readFully(header.array(),0,16); | |
| 739 header.limit(16); | |
| 740 if (header.get(0)==RfbProto.FramebufferUpdate) { | |
| 741 int encoding = header.getInt(12); | |
| 69 | 742 if (encoding==RfbProto.EncodingZRLE||encoding==RfbProto.EncodingZlib) { // ZRLEE is already recompressed |
| 60 | 743 ByteBuffer len = ByteBuffer.allocate(4); |
| 744 readFully(len.array(),0,4); len.limit(4); | |
| 745 ByteBuffer inputData = ByteBuffer.allocate(dataLen-20); | |
| 746 readFully(inputData.array(),0,inputData.capacity()); inputData.limit(dataLen-20); | |
| 747 LinkedList<ByteBuffer>inputs = new LinkedList<ByteBuffer>(); | |
| 748 inputs.add(inputData); | |
| 69 | 749 |
| 750 header.putInt(12, RfbProto.EncodingZRLEE); // means recompress every time | |
| 751 // using new Deflecter every time is incompatible with the protocol, clients have to be modified. | |
| 752 Deflater nDeflater = deflater; // new Deflater(); | |
| 753 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); | |
| 754 unzip(inflater, inputs, 0 , out, INFLATE_BUFSIZE); | |
| 755 // dump32(inputs); | |
| 756 int len2 = zip(nDeflater, out, 0, bufs); | |
| 757 ByteBuffer blen = ByteBuffer.allocate(4); blen.putInt(len2); blen.flip(); | |
| 758 bufs.addFirst(blen); | |
| 759 | |
| 60 | 760 bufs.addFirst(header); |
| 761 multicastqueue.put(bufs); | |
| 762 is.reset(); | |
| 763 return ; | |
| 764 } | |
| 765 } | |
| 766 bufs.add(header); | |
| 767 if (dataLen>16) { | |
| 768 ByteBuffer b = ByteBuffer.allocate(dataLen-16); | |
| 769 readFully(b.array(),0,dataLen-16); b.limit(dataLen-16); | |
| 770 bufs.add(b); | |
| 771 } | |
| 772 multicastqueue.put(bufs); | |
| 773 is.reset(); | |
| 774 | |
| 775 // It may be compressed. We can inflate here to avoid repeating clients decompressing here, | |
| 776 // but it may generate too many large data. It is better to do it in each client. | |
| 777 // But we have do inflation for all input data, so we have to do it here. | |
| 778 } | |
| 45 | 779 |
| 54 | 780 void newClient(AcceptThread acceptThread, final Socket newCli, |
| 45 | 781 final OutputStream os, final InputStream is) throws IOException { |
| 782 // createBimgFlag = true; | |
| 783 // rfb.addSockTmp(newCli); | |
| 784 // addSock(newCli); | |
| 69 | 785 final int myId = clients; |
| 60 | 786 final Client <LinkedList<ByteBuffer>> c = multicastqueue.newClient(); |
| 69 | 787 final AtomicInteger writerRunning = new AtomicInteger(); |
| 788 writerRunning.set(1); | |
| 789 /** | |
| 790 * Timeout thread. If a client is suspended, it has top of queue indefinitely, which caused memory | |
| 791 * overflow. After the timeout, we poll the queue and discard it. Start long wait if writer is running. | |
| 792 */ | |
| 793 final Runnable timer = new Runnable() { | |
| 794 public void run() { | |
| 795 int count = 0; | |
| 796 for(;;) { | |
| 797 long timeout = 30000/8; | |
| 798 try { | |
| 799 synchronized(this) { | |
| 800 int state,flag; | |
| 801 writerRunning.set(0); | |
| 802 wait(timeout); | |
| 803 flag = 0; | |
| 804 while((state=writerRunning.get())==0) { | |
| 805 c.poll(); // discard, should be timeout | |
| 806 count++; | |
| 807 if (flag==0) { | |
| 808 System.out.println("Discarding "+myId + " count="+ count); flag = 1; | |
| 809 } | |
| 810 wait(10); // if this is too short, writer cannot take the poll, if this is too long, memory will overflow... | |
| 811 } | |
| 812 if (flag==1) System.out.println("Resuming "+myId + " count="+count); | |
| 813 if (state!=1) { | |
| 814 System.out.println("Client died "+myId); | |
| 815 break; | |
| 816 } | |
| 817 } | |
| 818 } catch (InterruptedException e) { | |
| 819 } | |
| 820 } | |
| 821 } | |
| 822 }; | |
| 823 new Thread(timer).start(); | |
| 824 /** | |
| 825 * discard all incoming from clients | |
| 826 */ | |
| 60 | 827 final Runnable reader = new Runnable() { |
| 45 | 828 public void run() { |
| 60 | 829 byte b[] = new byte[4096]; |
| 830 for(;;) { | |
| 831 try { | |
| 832 int c = is.read(b); | |
| 833 if (c<=0) throw new IOException(); | |
| 69 | 834 // System.out.println("client read "+c); |
| 60 | 835 } catch (IOException e) { |
| 836 try { | |
| 69 | 837 writerRunning.set(2); |
| 60 | 838 os.close(); |
| 839 is.close(); | |
| 840 } catch (IOException e1) { | |
| 841 } | |
| 842 return; | |
| 843 } | |
| 844 } | |
| 845 } | |
| 846 }; | |
| 69 | 847 /** |
| 848 * send packets to a client | |
| 849 */ | |
| 60 | 850 Runnable sender = new Runnable() { |
| 851 public void run() { | |
| 69 | 852 writerRunning.set(1); |
| 45 | 853 try { |
| 60 | 854 /** |
| 855 * initial connection of RFB protocol | |
| 856 */ | |
| 45 | 857 sendRfbVersion(os); |
| 90 | 858 // readVersionMsg(is); |
| 859 int rfbMinor = readVersionMsg(is,os); | |
| 45 | 860 sendSecurityType(os); |
| 861 readSecType(is); | |
| 862 sendSecResult(os); | |
| 863 readClientInit(is); | |
| 864 sendInitData(os); | |
| 69 | 865 new Thread(reader).start(); // discard incoming packet here after. |
| 91 | 866 if(rfbMinor == 855){ |
| 90 | 867 // send jpeg data of full screen. |
| 91 | 868 sendFullScreen("jpeg" ,os); |
| 90 | 869 } else { |
| 870 // send raw data of full screen. | |
| 871 | |
| 872 } | |
| 45 | 873 for (;;) { |
| 60 | 874 LinkedList<ByteBuffer> bufs = c.poll(); |
| 875 int inputIndex = 0; | |
| 69 | 876 ByteBuffer header = bufs.get(inputIndex); |
| 60 | 877 if (header==null) continue; |
| 878 if (header.get(0)==RfbProto.FramebufferUpdate) { | |
| 69 | 879 // System.out.println("client "+ myId); |
| 60 | 880 } |
| 69 | 881 writeToClient(os, bufs, inputIndex); |
| 882 writerRunning.set(1); // yes my client is awaking. | |
| 45 | 883 } |
| 884 } catch (IOException e) { | |
| 60 | 885 try { |
| 69 | 886 writerRunning.set(2); |
| 60 | 887 os.close(); |
| 888 } catch (IOException e1) { | |
| 81 | 889 /* if socket closed cliList.remove(newCli); */ |
| 60 | 890 } |
| 45 | 891 } |
| 892 } | |
| 69 | 893 |
| 894 public void writeToClient(final OutputStream os, | |
| 895 LinkedList<ByteBuffer> bufs, int inputIndex) | |
| 896 throws IOException { | |
| 897 while(inputIndex < bufs.size()) { | |
| 898 ByteBuffer b = bufs.get(inputIndex++); | |
| 899 os.write(b.array(), b.position(), b.limit()); | |
| 900 } | |
| 901 os.flush(); | |
| 902 } | |
| 45 | 903 }; |
| 60 | 904 clients++; |
| 45 | 905 new Thread(sender).start(); |
| 906 | |
| 907 } | |
| 60 | 908 |
| 69 | 909 |
| 910 public void dump32(LinkedList<ByteBuffer>bufs) { | |
| 911 int len =0; | |
| 912 for(ByteBuffer b: bufs) len += b.remaining(); | |
| 913 ByteBuffer top = bufs.getFirst(); | |
| 914 ByteBuffer end = bufs.getLast(); | |
| 915 System.err.println("length: "+len); | |
| 916 System.err.print("head 0: "); | |
| 917 for(int i = 0; i<16 && i < top.remaining(); i++) { | |
| 918 System.err.print(" "+ top.get(i)); | |
| 919 } | |
| 920 System.err.print("tail 0: "); | |
| 921 for(int i = 0; i<16 && i < end.remaining(); i++) { | |
| 922 System.err.print(" "+end.get(i)); | |
| 923 } | |
| 924 System.err.println(); | |
| 925 } | |
| 926 | |
| 927 private Iterable<Byte> byteBufferIterator(final LinkedList<ByteBuffer> in) { | |
| 928 return new Iterable<Byte>() { | |
| 929 public Iterator<Byte> iterator() { | |
| 930 return new Iterator<Byte>() { | |
| 931 int bytes = 0; | |
| 932 int buffers = 0; | |
| 933 public boolean hasNext() { | |
| 934 for(;;) { | |
| 935 if (buffers>=in.size()) return false; | |
| 936 ByteBuffer b = in.get(buffers); | |
| 937 if (! (bytes<b.remaining())) { | |
| 938 buffers ++; bytes=0; | |
| 939 } else return true; | |
| 940 } | |
| 941 } | |
| 942 public Byte next() { | |
| 943 ByteBuffer bf =in.get(buffers); | |
| 944 byte b = bf.get(bytes++); | |
| 945 if (bf.remaining()<=bytes) { | |
| 946 buffers++; | |
| 947 bytes = 0; | |
| 948 } | |
| 949 // System.out.print(b); | |
| 950 return b; | |
| 951 } | |
| 952 public void remove() { | |
| 953 } | |
| 954 }; | |
| 955 } | |
| 956 }; | |
| 957 } | |
| 958 | |
| 45 | 959 } |
| 60 | 960 |
| 961 |