Mercurial > hg > Members > nobuyasu > tightVNCProxy
annotate src/myVncProxy/MyRfbProto.java @ 103:d1dc2bb0200d
server side recompression.
slightly better...
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Thu, 04 Aug 2011 11:06:10 +0900 |
| parents | 2ce6077bdb09 |
| children | b649584c9712 |
| 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; |
| 80 | 29 import java.util.zip.DataFormatException; |
| 30 import java.util.zip.Deflater; | |
| 31 import java.util.zip.Inflater; | |
| 40 | 32 import java.io.OutputStream; |
| 10 | 33 |
| 88 | 34 public |
| 93 | 35 class MyRfbProto<ByteBuffersIterator> extends RfbProto { |
| 43 | 36 final static String versionMsg_3_998 = "RFB 003.998\n"; |
| 65 | 37 /** |
| 38 * CheckMillis is one of new msgType for RFB 3.998. | |
| 39 */ | |
| 90 | 40 final static byte SpeedCheckMillis = 4; |
| 83 | 41 private static final int INFLATE_BUFSIZE = 1024*100; |
| 65 | 42 boolean printStatusFlag = false; |
| 43 long startCheckTime; | |
| 54 | 44 |
| 18 | 45 private int messageType; |
| 46 private int rectangles; | |
| 23 | 47 private int rectX; |
| 48 private int rectY; | |
| 49 private int rectW; | |
| 50 private int rectH; | |
| 18 | 51 private int encoding; |
| 27 | 52 private int zLen; |
|
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53 private boolean clicomp; |
| 18 | 54 |
| 23 | 55 private ServerSocket servSock; |
| 56 private int acceptPort; | |
| 10 | 57 private byte initData[]; |
| 54 | 58 private LinkedList<Socket> cliListTmp; |
| 59 private LinkedList<Socket> cliList; | |
| 27 | 60 boolean createBimgFlag; |
| 54 | 61 |
| 40 | 62 ExecutorService executor; |
| 54 | 63 |
| 25 | 64 byte[] pngBytes; |
| 54 | 65 |
| 102 | 66 // private MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MostRecentMultiCast<LinkedList<ByteBuffer>>(10); |
| 67 private MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MulticastQueue<LinkedList<ByteBuffer>>(); | |
| 80 | 68 private int clients = 0; |
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69 private Inflater inflater = new Inflater(); |
| 54 | 70 |
| 88 | 71 public |
| 72 MyRfbProto() throws IOException { | |
| 73 } | |
| 74 | |
| 54 | 75 MyRfbProto(String h, int p, VncViewer v) throws IOException { |
| 10 | 76 super(h, p, v); |
| 54 | 77 cliList = new LinkedList<Socket>(); |
| 78 cliListTmp = new LinkedList<Socket>(); | |
| 27 | 79 createBimgFlag = false; |
| 61 | 80 // sendThreads = new LinkedList<Thread>(); |
| 54 | 81 // executor = Executors.newCachedThreadPool(); |
| 82 // executor = Executors.newSingleThreadExecutor(); | |
| 10 | 83 } |
| 84 | |
| 13 | 85 MyRfbProto(String h, int p) throws IOException { |
| 86 super(h, p); | |
| 54 | 87 cliList = new LinkedList<Socket>(); |
| 88 cliListTmp = new LinkedList<Socket>(); | |
| 27 | 89 createBimgFlag = false; |
| 61 | 90 // sendThreads = new LinkedList<Thread>(); |
| 54 | 91 // executor = Executors.newCachedThreadPool(); |
| 92 // executor = Executors.newSingleThreadExecutor(); | |
| 13 | 93 } |
| 24 | 94 |
| 44 | 95 // over write |
| 43 | 96 void writeVersionMsg() throws IOException { |
| 97 clientMajor = 3; | |
| 98 if (serverMinor >= 9) { | |
| 54 | 99 clientMinor = 9; |
| 100 os.write(versionMsg_3_998.getBytes()); | |
| 43 | 101 } else if (serverMajor > 3 || serverMinor >= 8) { |
| 102 clientMinor = 8; | |
| 103 os.write(versionMsg_3_8.getBytes()); | |
| 104 } else if (serverMinor >= 9) { | |
| 105 clientMinor = 9; | |
| 106 os.write(versionMsg_3_998.getBytes()); | |
| 107 } else if (serverMinor >= 7) { | |
| 108 clientMinor = 7; | |
| 109 os.write(versionMsg_3_7.getBytes()); | |
| 110 } else { | |
| 111 clientMinor = 3; | |
| 112 os.write(versionMsg_3_3.getBytes()); | |
| 113 } | |
| 114 protocolTightVNC = false; | |
| 115 initCapabilities(); | |
| 116 } | |
| 117 | |
| 54 | 118 void initServSock(int port) throws IOException { |
| 10 | 119 servSock = new ServerSocket(port); |
| 23 | 120 acceptPort = port; |
| 10 | 121 } |
| 54 | 122 |
| 123 // 5550を開けるが、開いてないなら+1のポートを開ける。 | |
| 80 | 124 void selectPort(int p) { |
| 125 int port = p; | |
| 54 | 126 while (true) { |
| 127 try { | |
| 80 | 128 initServSock(port); |
| 23 | 129 break; |
| 54 | 130 } catch (BindException e) { |
| 80 | 131 port++; |
| 23 | 132 continue; |
| 54 | 133 } catch (IOException e) { |
| 10 | 134 |
| 23 | 135 } |
| 136 } | |
| 80 | 137 System.out.println("accept port = " + port); |
| 23 | 138 } |
| 54 | 139 |
| 140 int getAcceptPort() { | |
| 23 | 141 return acceptPort; |
| 142 } | |
| 54 | 143 |
| 10 | 144 void setSoTimeout(int num) throws IOException { |
| 145 servSock.setSoTimeout(num); | |
| 146 } | |
| 54 | 147 |
| 10 | 148 Socket accept() throws IOException { |
| 149 return servSock.accept(); | |
| 150 } | |
| 151 | |
| 54 | 152 void addSock(Socket sock) { |
| 10 | 153 cliList.add(sock); |
| 154 } | |
| 54 | 155 |
| 156 void addSockTmp(Socket sock) { | |
| 157 System.out.println("connected " + sock.getInetAddress()); | |
| 27 | 158 cliListTmp.add(sock); |
| 159 } | |
| 54 | 160 |
| 10 | 161 boolean markSupported() { |
| 162 return is.markSupported(); | |
| 163 } | |
| 54 | 164 |
| 10 | 165 void readServerInit() throws IOException { |
| 54 | 166 |
| 78 | 167 is.mark(255); |
| 10 | 168 skipBytes(20); |
| 169 int nlen = readU32(); | |
| 54 | 170 int blen = 20 + 4 + nlen; |
| 10 | 171 initData = new byte[blen]; |
| 78 | 172 is.reset(); |
| 10 | 173 |
| 78 | 174 is.mark(blen); |
| 10 | 175 readFully(initData); |
| 78 | 176 is.reset(); |
| 54 | 177 |
| 10 | 178 framebufferWidth = readU16(); |
| 179 framebufferHeight = readU16(); | |
| 180 bitsPerPixel = readU8(); | |
| 181 depth = readU8(); | |
| 182 bigEndian = (readU8() != 0); | |
| 183 trueColour = (readU8() != 0); | |
| 184 redMax = readU16(); | |
| 185 greenMax = readU16(); | |
| 186 blueMax = readU16(); | |
| 187 redShift = readU8(); | |
| 188 greenShift = readU8(); | |
| 189 blueShift = readU8(); | |
| 190 byte[] pad = new byte[3]; | |
| 191 readFully(pad); | |
| 192 int nameLength = readU32(); | |
| 193 byte[] name = new byte[nameLength]; | |
| 194 readFully(name); | |
| 195 desktopName = new String(name); | |
| 196 | |
| 197 // Read interaction capabilities (TightVNC protocol extensions) | |
| 198 if (protocolTightVNC) { | |
| 199 int nServerMessageTypes = readU16(); | |
| 200 int nClientMessageTypes = readU16(); | |
| 201 int nEncodingTypes = readU16(); | |
| 202 readU16(); | |
| 203 readCapabilityList(serverMsgCaps, nServerMessageTypes); | |
| 204 readCapabilityList(clientMsgCaps, nClientMessageTypes); | |
| 205 readCapabilityList(encodingCaps, nEncodingTypes); | |
| 206 } | |
| 207 | |
| 208 inNormalProtocol = true; | |
| 209 } | |
| 210 | |
| 54 | 211 void sendRfbVersion(OutputStream os) throws IOException { |
| 212 os.write(versionMsg_3_998.getBytes()); | |
| 43 | 213 } |
| 54 | 214 |
| 45 | 215 void readVersionMsg(InputStream is) throws IOException { |
| 216 | |
| 217 byte[] b = new byte[12]; | |
| 218 | |
| 219 is.read(b); | |
| 220 | |
| 221 if ((b[0] != 'R') || (b[1] != 'F') || (b[2] != 'B') || (b[3] != ' ') | |
| 222 || (b[4] < '0') || (b[4] > '9') || (b[5] < '0') || (b[5] > '9') | |
| 223 || (b[6] < '0') || (b[6] > '9') || (b[7] != '.') | |
| 224 || (b[8] < '0') || (b[8] > '9') || (b[9] < '0') || (b[9] > '9') | |
| 225 || (b[10] < '0') || (b[10] > '9') || (b[11] != '\n')) { | |
| 226 throw new IOException("Host " + host + " port " + port | |
| 227 + " is not an RFB server"); | |
| 228 } | |
| 229 | |
| 230 serverMajor = (b[4] - '0') * 100 + (b[5] - '0') * 10 + (b[6] - '0'); | |
| 231 serverMinor = (b[8] - '0') * 100 + (b[9] - '0') * 10 + (b[10] - '0'); | |
| 232 | |
| 233 if (serverMajor < 3) { | |
| 234 throw new IOException( | |
| 235 "RFB server does not support protocol version 3"); | |
| 54 | 236 } |
| 237 | |
| 238 } | |
| 239 | |
| 43 | 240 void sendSecurityType(OutputStream os) throws IOException { |
| 241 // number-of-security-types | |
| 242 os.write(1); | |
| 54 | 243 // security-types |
| 43 | 244 // 1:None |
| 245 os.write(1); | |
| 246 } | |
| 54 | 247 |
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248 void readSecType(InputStream is) throws IOException { |
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249 byte[] b = new byte[1]; |
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250 is.read(b); |
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251 |
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252 } |
| 54 | 253 |
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254 void sendSecResult(OutputStream os) throws IOException { |
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255 byte[] b = castIntByte(0); |
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256 os.write(b); |
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257 } |
| 54 | 258 |
| 43 | 259 void readClientInit(InputStream in) throws IOException { |
| 260 byte[] b = new byte[0]; | |
| 261 in.read(b); | |
| 262 } | |
| 54 | 263 |
| 264 void sendInitData(OutputStream os) throws IOException { | |
| 265 os.write(initData); | |
| 10 | 266 } |
| 267 | |
| 54 | 268 |
| 269 void sendPngImage() { | |
| 270 try { | |
| 271 for (Socket cli : cliListTmp) { | |
| 272 try { | |
| 27 | 273 sendPngData(cli); |
| 274 addSock(cli); | |
| 54 | 275 } catch (IOException e) { |
| 27 | 276 // if socket closed |
| 277 cliListTmp.remove(cli); | |
| 278 } | |
| 279 } | |
| 54 | 280 // System.out.println("cliSize="+cliSize()); |
| 281 } catch (Exception e) { | |
| 27 | 282 } |
| 283 cliListTmp.clear(); | |
| 284 } | |
| 285 | |
| 15 | 286 boolean ready() throws IOException { |
| 287 BufferedReader br = new BufferedReader(new InputStreamReader(is)); | |
| 288 return br.ready(); | |
| 54 | 289 } |
| 10 | 290 |
| 54 | 291 int cliSize() { |
| 10 | 292 return cliList.size(); |
| 54 | 293 } |
| 294 | |
| 295 void printNumBytesRead() { | |
| 296 System.out.println("numBytesRead=" + numBytesRead); | |
| 297 } | |
| 298 | |
| 299 | |
| 61 | 300 |
| 54 | 301 void regiFramebufferUpdate() throws IOException { |
| 78 | 302 is.mark(20); |
| 80 | 303 messageType = readU8(); // 0 |
| 304 skipBytes(1); // 1 | |
| 305 rectangles = readU16(); // 2 | |
| 306 rectX = readU16(); // 4 | |
| 307 rectY = readU16(); // 6 | |
| 308 rectW = readU16(); // 8 | |
| 309 rectH = readU16(); // 10 | |
| 310 encoding = readU32(); // 12 | |
| 78 | 311 System.out.println("encoding = "+encoding); |
| 80 | 312 if (encoding == EncodingZRLE) |
| 27 | 313 zLen = readU32(); |
| 80 | 314 else |
| 315 zLen = 0; | |
| 78 | 316 is.reset(); |
| 67 | 317 /* |
| 318 int dataLen; | |
| 319 switch (encoding) { | |
| 320 case RfbProto.EncodingRaw: | |
| 321 dataLen = rectW * rectH * 4 + 16; | |
| 322 mark(dataLen); | |
| 323 break; | |
| 324 case RfbProto.EncodingCopyRect: | |
| 325 dataLen = 16 + 4; | |
| 326 mark(dataLen); | |
| 327 break; | |
| 328 case RfbProto.EncodingRRE: | |
| 329 case RfbProto.EncodingCoRRE: | |
| 330 case RfbProto.EncodingHextile: | |
| 331 | |
| 332 case RfbProto.EncodingZlib: | |
| 333 case RfbProto.EncodingTight: | |
| 334 case RfbProto.EncodingZRLE: | |
| 335 dataLen = zLen + 20; | |
| 336 mark(dataLen); | |
| 337 break; | |
| 338 default: | |
| 339 dataLen = 1000000; | |
| 340 mark(dataLen); | |
| 341 } | |
| 342 | |
| 343 */ | |
| 344 | |
| 15 | 345 } |
| 54 | 346 |
| 61 | 347 int checkAndMark() throws IOException { |
| 348 int dataLen; | |
| 54 | 349 switch (encoding) { |
| 23 | 350 case RfbProto.EncodingRaw: |
| 39 | 351 dataLen = rectW * rectH * 4 + 16; |
| 78 | 352 is.mark(dataLen); |
| 23 | 353 break; |
| 67 | 354 case RfbProto.EncodingCopyRect: |
| 355 dataLen = 16 + 4; | |
| 78 | 356 is.mark(dataLen); |
| 67 | 357 break; |
| 358 case RfbProto.EncodingRRE: | |
| 359 case RfbProto.EncodingCoRRE: | |
| 360 case RfbProto.EncodingHextile: | |
| 80 | 361 case RfbProto.EncodingTight: |
| 362 dataLen = zLen + 20; | |
| 363 is.mark(dataLen); | |
| 364 break; | |
| 67 | 365 case RfbProto.EncodingZlib: |
| 27 | 366 case RfbProto.EncodingZRLE: |
| 54 | 367 dataLen = zLen + 20; |
| 78 | 368 is.mark(dataLen); |
| 369 break; | |
| 370 case RfbProto.EncodingXCursor: | |
| 371 case RfbProto.EncodingRichCursor: | |
| 372 int pixArray = rectW * rectH * 4; | |
| 373 int u8Array = (int)Math.floor((rectW + 7)/8) * rectH; | |
| 374 dataLen = pixArray + u8Array; | |
| 375 printFramebufferUpdate(); | |
| 376 is.mark(dataLen); | |
| 27 | 377 break; |
| 23 | 378 default: |
| 61 | 379 dataLen = 1000000; |
| 78 | 380 is.mark(dataLen); |
| 54 | 381 } |
| 61 | 382 return dataLen; |
| 383 } | |
| 65 | 384 |
| 385 | |
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386 void sendDataToClient() throws Exception { |
| 61 | 387 regiFramebufferUpdate(); |
| 388 int dataLen = checkAndMark(); | |
| 389 readSendData(dataLen); | |
| 23 | 390 } |
| 54 | 391 |
| 392 BufferedImage createBufferedImage(Image img) { | |
| 393 BufferedImage bimg = new BufferedImage(img.getWidth(null), | |
| 394 img.getHeight(null), BufferedImage.TYPE_INT_RGB); | |
| 27 | 395 |
| 25 | 396 Graphics g = bimg.getGraphics(); |
| 397 g.drawImage(img, 0, 0, null); | |
| 398 g.dispose(); | |
| 399 return bimg; | |
| 400 } | |
| 401 | |
| 54 | 402 void createPngBytes(BufferedImage bimg) throws IOException { |
| 403 pngBytes = getImageBytes(bimg, "png"); | |
| 25 | 404 } |
| 54 | 405 |
| 406 byte[] getBytes(BufferedImage img) throws IOException { | |
| 25 | 407 byte[] b = getImageBytes(img, "png"); |
| 408 return b; | |
| 409 } | |
| 54 | 410 |
| 411 byte[] getImageBytes(BufferedImage image, String imageFormat) | |
| 412 throws IOException { | |
| 25 | 413 ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| 414 BufferedOutputStream os = new BufferedOutputStream(bos); | |
| 415 image.flush(); | |
| 416 ImageIO.write(image, imageFormat, os); | |
| 417 os.flush(); | |
| 418 os.close(); | |
| 419 return bos.toByteArray(); | |
| 420 } | |
| 421 | |
| 54 | 422 void sendPngData(Socket sock) throws IOException { |
| 26 | 423 byte[] dataLength = castIntByte(pngBytes.length); |
| 424 sock.getOutputStream().write(dataLength); | |
| 25 | 425 sock.getOutputStream().write(pngBytes); |
| 426 } | |
| 54 | 427 |
| 428 byte[] castIntByte(int len) { | |
| 26 | 429 byte[] b = new byte[4]; |
| 54 | 430 b[0] = (byte) ((len >>> 24) & 0xFF); |
| 431 b[1] = (byte) ((len >>> 16) & 0xFF); | |
| 432 b[2] = (byte) ((len >>> 8) & 0xFF); | |
| 433 b[3] = (byte) ((len >>> 0) & 0xFF); | |
| 26 | 434 return b; |
| 435 } | |
| 54 | 436 |
| 437 BufferedImage createBimg() throws IOException { | |
| 25 | 438 BufferedImage bimg = ImageIO.read(new ByteArrayInputStream(pngBytes)); |
| 439 return bimg; | |
| 440 } | |
| 65 | 441 /* |
| 54 | 442 void readPngData() throws IOException { |
| 25 | 443 pngBytes = new byte[is.available()]; |
| 444 readFully(pngBytes); | |
| 445 } | |
| 65 | 446 */ |
| 54 | 447 void printFramebufferUpdate() { |
| 448 | |
| 18 | 449 System.out.println("messageType=" + messageType); |
| 54 | 450 System.out.println("rectangles=" + rectangles); |
| 18 | 451 System.out.println("encoding=" + encoding); |
| 78 | 452 System.out.println("rectX = "+rectX+": rectY = "+rectY); |
| 453 System.out.println("rectW = "+rectW+": rectH = "+rectH); | |
| 54 | 454 switch (encoding) { |
| 23 | 455 case RfbProto.EncodingRaw: |
| 54 | 456 System.out.println("rectW * rectH * 4 + 16 =" + rectW * rectH * 4 |
| 457 + 16); | |
| 23 | 458 break; |
| 459 default: | |
| 460 } | |
| 18 | 461 } |
| 65 | 462 |
| 77 | 463 void readSpeedCheck() throws IOException { |
| 464 byte[] b = new byte[1]; | |
| 65 | 465 readFully(b); |
| 466 } | |
| 467 | |
| 77 | 468 void startSpeedCheck() { |
| 90 | 469 ByteBuffer b = ByteBuffer.allocate(10); |
| 470 b.put((byte)SpeedCheckMillis); | |
| 471 b.flip(); | |
| 66 | 472 startCheckTime = System.currentTimeMillis(); |
| 473 System.out.println("startChckTime = "+ startCheckTime); | |
| 90 | 474 LinkedList<ByteBuffer>bufs = new LinkedList<ByteBuffer>(); |
| 84 | 475 bufs.add(b); |
| 476 multicastqueue.put(bufs); | |
| 65 | 477 } |
| 478 | |
| 77 | 479 void endSpeedCheck() { |
| 65 | 480 long accTime = System.currentTimeMillis(); |
| 481 long time = accTime - startCheckTime; | |
| 482 System.out.println("checkMillis: " + time); | |
| 483 } | |
| 484 | |
| 485 void printStatus() { | |
| 486 System.out.println(); | |
| 487 } | |
| 488 | |
| 489 synchronized void changeStatusFlag() { | |
| 490 printStatusFlag = true; | |
| 491 } | |
| 492 | |
| 493 void printMills() { | |
| 494 if(printStatusFlag) { | |
| 495 | |
| 496 changeStatusFlag(); | |
| 497 } else { | |
| 498 changeStatusFlag(); | |
| 499 } | |
| 500 } | |
| 87 | 501 |
| 502 void speedCheckMillis() { | |
| 503 Runnable stdin = new Runnable() { | |
| 504 public void run() { | |
| 505 int c; | |
| 506 try { | |
| 507 while( (c = System.in.read()) != -1 ) { | |
| 508 switch(c) { | |
| 509 case 's': | |
| 510 break; | |
| 511 default: | |
| 512 startSpeedCheck(); | |
| 513 break; | |
| 514 } | |
| 515 } | |
| 516 }catch(IOException e){ | |
| 517 System.out.println(e); | |
| 518 } | |
| 519 } | |
| 520 }; | |
| 521 | |
| 522 new Thread(stdin).start(); | |
| 523 } | |
| 86 | 524 |
| 87 | 525 /** |
| 526 * gzip byte arrays | |
| 527 * @param deflater | |
| 528 * @param inputs | |
| 529 * byte data[] | |
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530 * @param inputIndex |
| 87 | 531 * @param outputs |
| 532 * byte data[] | |
| 533 * @return byte length in last byte array | |
| 534 * @throws IOException | |
| 535 */ | |
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536 public int zip(Deflater deflater,LinkedList<ByteBuffer> inputs, int inputIndex, LinkedList<ByteBuffer> outputs) throws IOException { |
| 102 | 537 int len = 0; |
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538 ByteBuffer c1= ByteBuffer.allocate(INFLATE_BUFSIZE); |
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539 while(inputIndex < inputs.size() ) { |
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540 ByteBuffer b1 = inputs.get(inputIndex++); |
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541 deflater.setInput(b1.array(),b1.position(),b1.remaining()); |
| 102 | 542 if (inputIndex==inputs.size()) deflater.finish(); |
| 86 | 543 do { |
| 102 | 544 int len1 = deflater.deflate(c1.array(),c1.position(),c1.remaining()); |
| 545 if (len1>0) { | |
| 546 len += len1; | |
| 547 c1.position(c1.position()+len1); | |
| 548 if (c1.remaining()==0) { | |
| 549 c1.flip(); outputs.addLast(c1); | |
| 550 c1 = ByteBuffer.allocate(INFLATE_BUFSIZE); | |
| 551 } | |
| 86 | 552 } |
| 102 | 553 } while (!deflater.needsInput()&&!deflater.finished()); |
|
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554 } |
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555 if (c1.position()!=0) { |
| 102 | 556 c1.flip(); outputs.addLast(c1); |
|
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557 } |
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558 deflater.reset(); |
| 90 | 559 return len; |
| 86 | 560 } |
| 87 | 561 |
| 562 /** | |
| 563 * gunzip byte arrays | |
| 564 * @param inflater | |
| 565 * @param inputs | |
| 566 * byte data[] | |
| 567 * @param outputs | |
| 568 * byte data[] | |
| 91 | 569 *@return number of total bytes |
| 87 | 570 * @throws IOException |
| 571 */ | |
|
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572 public int unzip(Inflater inflater, LinkedList<ByteBuffer> inputs, int inputIndex, LinkedList<ByteBuffer> outputs) |
| 88 | 573 throws DataFormatException { |
| 102 | 574 int len=0; |
|
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575 ByteBuffer buf = ByteBuffer.allocate(INFLATE_BUFSIZE); |
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576 while (inputIndex < inputs.size()) { |
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577 ByteBuffer input = inputs.get(inputIndex++); |
| 102 | 578 inflater.setInput(input.array(),input.position(),input.limit()); |
| 88 | 579 do { |
| 102 | 580 int len0 = inflater.inflate(buf.array(),buf.position(),buf.remaining()); |
| 581 if (len0>0) { | |
| 582 buf.position(buf.position()+len0); | |
| 583 len += len0; | |
| 584 if (buf.remaining()==0) { | |
| 585 buf.flip(); | |
| 586 outputs.addLast(buf); | |
| 587 buf = ByteBuffer.allocate(INFLATE_BUFSIZE); | |
| 588 } | |
| 91 | 589 } |
| 102 | 590 } while (!inflater.needsInput()); |
|
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591 } |
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592 if (buf.position()!=0) { |
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593 buf.flip(); |
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594 outputs.addLast(buf); |
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595 } |
| 90 | 596 return len; |
| 86 | 597 } |
| 65 | 598 |
| 86 | 599 void readSendData(int dataLen) throws IOException, DataFormatException { |
| 90 | 600 LinkedList<ByteBuffer>bufs = new LinkedList<ByteBuffer>(); |
| 601 ByteBuffer header = ByteBuffer.allocate(16); | |
| 602 readFully(header.array(),0,16); | |
| 603 header.limit(16); | |
| 604 if (header.get(0)==RfbProto.FramebufferUpdate) { | |
| 605 int encoding = header.getInt(12); | |
| 86 | 606 if (encoding==RfbProto.EncodingZlib||encoding==RfbProto.EncodingZRLE) { |
| 90 | 607 ByteBuffer len = ByteBuffer.allocate(4); |
| 608 readFully(len.array(),0,4); len.limit(4); | |
| 609 ByteBuffer inputData = ByteBuffer.allocate(dataLen-20); | |
| 610 readFully(inputData.array(),0,inputData.capacity()); inputData.limit(dataLen-20); | |
| 611 LinkedList<ByteBuffer>inputs = new LinkedList<ByteBuffer>(); | |
| 88 | 612 inputs.add(inputData); |
|
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613 if (clicomp) { |
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614 unzip(inflater, inputs, 0, bufs); |
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615 } else { |
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616 Deflater nDeflater = new Deflater(); |
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617 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); |
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618 unzip(inflater, inputs, 0 , out); |
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619 int len2 = zip(nDeflater, out, 0, bufs); |
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620 ByteBuffer blen = ByteBuffer.allocate(4); blen.putInt(len2); blen.flip(); |
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621 bufs.addFirst(blen); |
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622 } |
| 87 | 623 bufs.addFirst(header); |
| 86 | 624 multicastqueue.put(bufs); |
| 625 is.reset(); | |
| 626 return ; | |
| 627 } | |
| 628 } | |
| 87 | 629 bufs.add(header); |
| 630 if (dataLen>16) { | |
| 90 | 631 ByteBuffer b = ByteBuffer.allocate(dataLen-16); |
| 632 readFully(b.array(),0,dataLen-16); b.limit(dataLen-16); | |
| 87 | 633 bufs.add(b); |
| 634 } | |
| 86 | 635 multicastqueue.put(bufs); |
| 636 is.reset(); | |
| 637 | |
| 638 // It may be compressed. We can inflate here to avoid repeating clients decompressing here, | |
| 639 // but it may generate too many large data. It is better to do it in each client. | |
| 640 // But we have do inflation for all input data, so we have to do it here. | |
| 641 } | |
| 43 | 642 |
| 71 | 643 void newClient(AcceptThread acceptThread, final Socket newCli, |
| 54 | 644 final OutputStream os, final InputStream is) throws IOException { |
| 645 // createBimgFlag = true; | |
| 646 // rfb.addSockTmp(newCli); | |
| 647 // addSock(newCli); | |
| 90 | 648 final Client <LinkedList<ByteBuffer>> c = multicastqueue.newClient(); |
| 102 | 649 |
| 650 final Runnable reader = new Runnable() { | |
| 651 public void run() { | |
| 652 byte b[] = new byte[4096]; | |
| 653 for(;;) { | |
| 654 try { | |
| 655 int c = is.read(b); | |
| 656 if (c<=0) throw new IOException(); | |
| 657 System.out.println("client read "+c); | |
| 658 } catch (IOException e) { | |
| 659 try { | |
| 660 os.close(); | |
| 661 is.close(); | |
| 662 } catch (IOException e1) { | |
| 663 } | |
| 664 return; | |
| 665 } | |
| 666 } | |
| 667 } | |
| 668 }; | |
| 54 | 669 Runnable sender = new Runnable() { |
|
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670 |
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671 |
| 54 | 672 public void run() { |
| 80 | 673 |
|
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674 Deflater deflater = new Deflater(); |
| 54 | 675 try { |
| 65 | 676 /** |
| 677 * initial connection of RFB protocol | |
| 678 */ | |
| 54 | 679 sendRfbVersion(os); |
| 680 readVersionMsg(is); | |
| 681 sendSecurityType(os); | |
| 682 readSecType(is); | |
| 683 sendSecResult(os); | |
| 684 readClientInit(is); | |
| 685 sendInitData(os); | |
|
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686 new Thread(reader).start(); |
| 54 | 687 for (;;) { |
| 90 | 688 LinkedList<ByteBuffer> bufs = c.poll(); |
|
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689 int inputIndex = 0; |
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690 ByteBuffer header = bufs.get(inputIndex++); |
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691 if (header==null) continue; |
| 90 | 692 if (header.get(0)==RfbProto.FramebufferUpdate) { |
|
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693 System.out.println("client "+ clients); |
| 90 | 694 int encoding = header.getInt(12); |
| 80 | 695 if (encoding==RfbProto.EncodingZlib||encoding==RfbProto.EncodingZRLE) { |
|
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696 LinkedList<ByteBuffer> outs; |
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697 if (clicomp) { |
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698 outs = new LinkedList<ByteBuffer>(); |
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699 int len2 = zip(deflater, bufs, inputIndex, outs); |
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700 ByteBuffer blen = ByteBuffer.allocate(4); blen.putInt(len2); blen.flip(); |
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701 outs.addFirst(blen); |
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702 outs.addFirst(header); |
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703 inputIndex = 0; |
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704 } else { |
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705 outs = bufs; |
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706 inputIndex = 0; |
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707 } |
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708 while(inputIndex < outs.size()) { |
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709 ByteBuffer out= outs.get(inputIndex++); |
| 90 | 710 os.write(out.array(),out.position(),out.limit()); |
| 84 | 711 } |
| 80 | 712 } |
| 87 | 713 os.flush(); |
|
95
285dd4d6dacf
gziped partial drawing.
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|
714 continue; |
| 87 | 715 } |
| 90 | 716 os.write(header.array(),header.position(),header.limit()); |
|
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717 while(inputIndex < bufs.size()) { |
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718 ByteBuffer b = bufs.get(inputIndex++); |
| 90 | 719 os.write(b.array(), b.position(), b.limit()); |
| 84 | 720 } |
| 85 | 721 os.flush(); |
| 54 | 722 } |
| 723 } catch (IOException e) { | |
|
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724 try { |
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725 os.close(); |
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726 } catch (IOException e1) { |
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727 } |
| 87 | 728 /* if socket closed cliList.remove(newCli); */ |
| 54 | 729 } |
| 730 } | |
| 731 }; | |
| 80 | 732 clients++; |
| 54 | 733 new Thread(sender).start(); |
| 734 | |
| 735 } | |
| 66 | 736 |
| 737 | |
| 88 | 738 |
| 739 @Test | |
| 740 public void test1() { | |
| 741 try { | |
| 90 | 742 LinkedList<ByteBuffer> in = new LinkedList<ByteBuffer>(); |
| 743 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); | |
| 744 LinkedList<ByteBuffer> out2 = new LinkedList<ByteBuffer>(); | |
| 88 | 745 for(int i=0;i<10;i++) { |
| 90 | 746 in.add(ByteBuffer.wrap("test1".getBytes())); |
| 747 in.add(ByteBuffer.wrap("test2".getBytes())); | |
| 748 in.add(ByteBuffer.wrap("test3".getBytes())); | |
| 749 in.add(ByteBuffer.wrap("test4".getBytes())); | |
| 88 | 750 } |
| 92 | 751 LinkedList<ByteBuffer> in1 = clone(in); |
| 90 | 752 |
| 88 | 753 Deflater deflater = new Deflater(); |
|
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|
754 zip(deflater,in,0,out); |
| 92 | 755 // LinkedList<ByteBuffer> out3 = clone(out); zipped result is depend on deflator's state |
|
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756 unzip(inflater, out, 0,out2); |
|
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|
757 inflater.reset(); |
| 92 | 758 equalByteBuffers(in1, out2); |
| 759 LinkedList<ByteBuffer> out4 = new LinkedList<ByteBuffer>(); | |
|
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760 zip(deflater,out2,0,out4); |
| 92 | 761 LinkedList<ByteBuffer> out5 = new LinkedList<ByteBuffer>(); |
|
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762 unzip(inflater,out4,0, out5); |
|
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763 int len = equalByteBuffers(in1,out5); |
| 92 | 764 |
|
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765 System.out.println("Test Ok. "+len); |
| 88 | 766 } catch (Exception e) { |
| 767 assertEquals(0,1); | |
| 768 } | |
| 769 } | |
| 770 | |
| 92 | 771 private LinkedList<ByteBuffer> clone(LinkedList<ByteBuffer> in) { |
| 772 LinkedList<ByteBuffer> copy = new LinkedList<ByteBuffer>(); | |
| 773 for(ByteBuffer b: in) { | |
| 774 ByteBuffer c = b.duplicate(); | |
| 775 copy.add(c); | |
| 776 } | |
| 777 return copy; | |
| 778 } | |
| 779 | |
| 93 | 780 |
| 781 | |
|
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|
782 public int equalByteBuffers(LinkedList<ByteBuffer> in, |
| 92 | 783 LinkedList<ByteBuffer> out2) { |
|
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|
784 int len = 0; |
| 93 | 785 Iterable<Byte> i = byteBufferIterator(in); |
| 786 Iterator<Byte> o = byteBufferIterator(out2).iterator(); | |
| 787 | |
| 788 for(int b: i) { | |
|
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|
789 len ++; |
| 93 | 790 if (o.hasNext()) { |
| 791 int c = o.next(); | |
| 792 assertEquals(b,c); | |
| 793 } else | |
| 794 assertEquals(0,1); | |
| 795 } | |
| 796 if (o.hasNext()) assertEquals(0,1); | |
| 797 // System.out.println(); | |
|
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798 return len; |
| 93 | 799 } |
| 800 | |
| 801 private Iterable<Byte> byteBufferIterator(final LinkedList<ByteBuffer> in) { | |
| 802 return new Iterable<Byte>() { | |
| 803 public Iterator<Byte> iterator() { | |
| 804 return new Iterator<Byte>() { | |
| 805 int bytes = 0; | |
| 806 int buffers = 0; | |
| 807 public boolean hasNext() { | |
| 808 if (buffers>=in.size()) return false; | |
| 809 ByteBuffer b = in.getFirst(); | |
| 810 return bytes<b.remaining(); | |
| 92 | 811 } |
| 93 | 812 public Byte next() { |
| 813 ByteBuffer bf =in.get(buffers); | |
| 814 byte b = bf.get(bytes++); | |
| 815 if (bf.remaining()<=bytes) { | |
| 816 buffers++; | |
| 817 bytes = 0; | |
| 818 } | |
| 819 // System.out.print(b); | |
| 820 return b; | |
| 821 } | |
| 822 public void remove() { | |
| 823 } | |
| 824 }; | |
| 92 | 825 } |
| 93 | 826 }; |
| 92 | 827 } |
| 828 | |
| 54 | 829 } |
| 66 | 830 |
| 831 |