Mercurial > hg > Members > nobuyasu > tightVNCProxy
annotate src/myVncProxy/MyRfbProto.java @ 184:134deb9f8148
update
| author | one |
|---|---|
| date | Mon, 07 Nov 2011 12:41:16 +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; | |
| 18 | 54 private int messageType; |
| 55 private int rectangles; | |
| 23 | 56 private int rectX; |
| 57 private int rectY; | |
| 58 private int rectW; | |
| 59 private int rectH; | |
| 18 | 60 private int encoding; |
| 27 | 61 private int zLen; |
| 104 | 62 private boolean clicomp = false; |
| 18 | 63 |
| 23 | 64 private ServerSocket servSock; |
| 144 | 65 protected int acceptPort; |
| 184 | 66 //private byte initData[]; |
| 67 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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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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170 } |
| 54 | 171 |
| 153 | 172 /* |
| 173 * default port number is 5999. | |
| 174 */ | |
| 80 | 175 void selectPort(int p) { |
| 144 | 176 if(servSock != null ) return ; |
| 80 | 177 int port = p; |
| 54 | 178 while (true) { |
| 179 try { | |
| 80 | 180 initServSock(port); |
| 23 | 181 break; |
| 54 | 182 } catch (BindException e) { |
| 80 | 183 port++; |
| 23 | 184 continue; |
| 54 | 185 } catch (IOException e) { |
| 10 | 186 |
| 23 | 187 } |
| 188 } | |
| 80 | 189 System.out.println("accept port = " + port); |
| 23 | 190 } |
| 54 | 191 |
| 192 int getAcceptPort() { | |
| 23 | 193 return acceptPort; |
| 194 } | |
| 54 | 195 |
| 10 | 196 void setSoTimeout(int num) throws IOException { |
| 197 servSock.setSoTimeout(num); | |
| 198 } | |
| 54 | 199 |
| 10 | 200 Socket accept() throws IOException { |
| 201 return servSock.accept(); | |
| 202 } | |
| 203 | |
| 54 | 204 void addSock(Socket sock) { |
| 10 | 205 cliList.add(sock); |
| 206 } | |
| 54 | 207 |
| 208 void addSockTmp(Socket sock) { | |
| 209 System.out.println("connected " + sock.getInetAddress()); | |
| 27 | 210 cliListTmp.add(sock); |
| 211 } | |
| 54 | 212 |
| 10 | 213 boolean markSupported() { |
| 214 return is.markSupported(); | |
| 215 } | |
| 54 | 216 |
| 10 | 217 void readServerInit() throws IOException { |
| 54 | 218 |
| 78 | 219 is.mark(255); |
| 10 | 220 skipBytes(20); |
| 221 int nlen = readU32(); | |
| 54 | 222 int blen = 20 + 4 + nlen; |
| 10 | 223 initData = new byte[blen]; |
| 78 | 224 is.reset(); |
| 10 | 225 |
| 78 | 226 is.mark(blen); |
| 10 | 227 readFully(initData); |
| 78 | 228 is.reset(); |
| 54 | 229 |
| 10 | 230 framebufferWidth = readU16(); |
| 231 framebufferHeight = readU16(); | |
| 232 bitsPerPixel = readU8(); | |
| 233 depth = readU8(); | |
| 234 bigEndian = (readU8() != 0); | |
| 235 trueColour = (readU8() != 0); | |
| 236 redMax = readU16(); | |
| 237 greenMax = readU16(); | |
| 238 blueMax = readU16(); | |
| 239 redShift = readU8(); | |
| 240 greenShift = readU8(); | |
| 241 blueShift = readU8(); | |
| 242 byte[] pad = new byte[3]; | |
| 243 readFully(pad); | |
| 244 int nameLength = readU32(); | |
| 245 byte[] name = new byte[nameLength]; | |
| 246 readFully(name); | |
| 247 desktopName = new String(name); | |
| 248 | |
| 249 // Read interaction capabilities (TightVNC protocol extensions) | |
| 250 if (protocolTightVNC) { | |
| 251 int nServerMessageTypes = readU16(); | |
| 252 int nClientMessageTypes = readU16(); | |
| 253 int nEncodingTypes = readU16(); | |
| 254 readU16(); | |
| 255 readCapabilityList(serverMsgCaps, nServerMessageTypes); | |
| 256 readCapabilityList(clientMsgCaps, nClientMessageTypes); | |
| 257 readCapabilityList(encodingCaps, nEncodingTypes); | |
| 258 } | |
| 259 | |
| 260 inNormalProtocol = true; | |
| 261 } | |
| 262 | |
| 54 | 263 void sendRfbVersion(OutputStream os) throws IOException { |
| 138 | 264 // os.write(versionMsg_3_8.getBytes()); |
| 154 | 265 os.write(versionMsg_3_855.getBytes()); |
| 43 | 266 } |
| 54 | 267 |
| 155 | 268 int readVersionMsg(InputStream is, OutputStream os) throws IOException { |
| 45 | 269 |
| 270 byte[] b = new byte[12]; | |
| 271 | |
| 272 is.read(b); | |
| 273 | |
| 274 if ((b[0] != 'R') || (b[1] != 'F') || (b[2] != 'B') || (b[3] != ' ') | |
| 275 || (b[4] < '0') || (b[4] > '9') || (b[5] < '0') || (b[5] > '9') | |
| 276 || (b[6] < '0') || (b[6] > '9') || (b[7] != '.') | |
| 277 || (b[8] < '0') || (b[8] > '9') || (b[9] < '0') || (b[9] > '9') | |
| 278 || (b[10] < '0') || (b[10] > '9') || (b[11] != '\n')) { | |
| 279 throw new IOException("Host " + host + " port " + port | |
| 280 + " is not an RFB server"); | |
| 281 } | |
| 282 | |
| 155 | 283 int rfbMajor = (b[4] - '0') * 100 + (b[5] - '0') * 10 + (b[6] - '0'); |
| 284 int rfbMinor = (b[8] - '0') * 100 + (b[9] - '0') * 10 + (b[10] - '0'); | |
| 45 | 285 |
| 155 | 286 if (rfbMajor < 3) { |
| 45 | 287 throw new IOException( |
| 141 | 288 "RFB server does not support protocol version 3"); |
| 54 | 289 } |
| 290 | |
| 155 | 291 if (rfbMinor == 855) { |
| 292 sendProxyFlag(os); | |
| 293 if(proxyFlag)sendPortNumber(os); | |
| 130 | 294 } |
| 155 | 295 return rfbMinor; |
| 296 } | |
| 297 void sendProxyFlag(OutputStream os) throws IOException { | |
| 298 if(proxyFlag) os.write(1); | |
| 299 else os.write(0); | |
| 300 } | |
| 301 | |
| 302 boolean readProxyFlag() throws IOException{ | |
| 303 int flag = readU8(); | |
| 304 if(flag == 1) | |
| 305 return true; | |
| 306 else | |
| 307 return false; | |
| 130 | 308 } |
| 309 | |
| 131 | 310 void sendPortNumber(OutputStream os) throws IOException { |
| 130 | 311 byte[] b = new byte[4]; |
| 312 b = castIntByte(geth.port); | |
| 313 os.write(b); | |
| 54 | 314 } |
| 315 | |
| 43 | 316 void sendSecurityType(OutputStream os) throws IOException { |
| 317 // number-of-security-types | |
| 318 os.write(1); | |
| 54 | 319 // security-types |
| 43 | 320 // 1:None |
| 321 os.write(1); | |
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322 |
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323 /* |
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324 os.write(4); |
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325 os.write(30); |
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326 os.write(31); |
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327 os.write(32); |
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328 os.write(35); |
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329 os.flush(); |
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330 */ |
| 43 | 331 } |
| 54 | 332 |
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333 void readSecType(InputStream is) throws IOException { |
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334 byte[] b = new byte[1]; |
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335 is.read(b); |
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336 } |
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337 |
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338 |
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339 void readSecType(InputStream is, OutputStream os) throws IOException { |
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340 byte[] b = new byte[1]; |
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341 is.read(b); |
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342 |
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343 int count = 260; |
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344 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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345 for(int i=0; i<count; i++ ) { |
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346 os.write((byte)data[i]); |
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347 os.flush(); |
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348 } |
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349 |
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350 byte[] c = new byte[256]; |
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351 is.read(c); |
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352 |
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353 System.out.println(new String(c)); |
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354 |
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355 } |
| 54 | 356 |
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357 |
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358 void sendSecResult(OutputStream os) throws IOException { |
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359 byte[] b = castIntByte(0); |
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360 os.write(b); |
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361 } |
| 54 | 362 |
| 43 | 363 void readClientInit(InputStream in) throws IOException { |
| 364 byte[] b = new byte[0]; | |
| 365 in.read(b); | |
| 366 } | |
| 54 | 367 |
| 368 void sendInitData(OutputStream os) throws IOException { | |
| 369 os.write(initData); | |
| 10 | 370 } |
| 371 | |
| 54 | 372 |
| 373 void sendPngImage() { | |
| 374 try { | |
| 375 for (Socket cli : cliListTmp) { | |
| 376 try { | |
| 27 | 377 sendPngData(cli); |
| 378 addSock(cli); | |
| 54 | 379 } catch (IOException e) { |
| 27 | 380 // if socket closed |
| 381 cliListTmp.remove(cli); | |
| 382 } | |
| 383 } | |
| 54 | 384 // System.out.println("cliSize="+cliSize()); |
| 385 } catch (Exception e) { | |
| 27 | 386 } |
| 387 cliListTmp.clear(); | |
| 388 } | |
| 389 | |
| 15 | 390 boolean ready() throws IOException { |
| 391 BufferedReader br = new BufferedReader(new InputStreamReader(is)); | |
| 392 return br.ready(); | |
| 54 | 393 } |
| 10 | 394 |
| 54 | 395 int cliSize() { |
| 10 | 396 return cliList.size(); |
| 54 | 397 } |
| 398 | |
| 399 void printNumBytesRead() { | |
| 400 System.out.println("numBytesRead=" + numBytesRead); | |
| 401 } | |
| 402 | |
| 403 | |
| 61 | 404 |
| 54 | 405 void regiFramebufferUpdate() throws IOException { |
| 78 | 406 is.mark(20); |
| 80 | 407 messageType = readU8(); // 0 |
| 408 skipBytes(1); // 1 | |
| 409 rectangles = readU16(); // 2 | |
| 410 rectX = readU16(); // 4 | |
| 411 rectY = readU16(); // 6 | |
| 412 rectW = readU16(); // 8 | |
| 413 rectH = readU16(); // 10 | |
| 414 encoding = readU32(); // 12 | |
| 122 | 415 // System.out.println("encoding = "+encoding); |
| 107 | 416 if (encoding == EncodingZRLE|| encoding==EncodingZRLEE||encoding==EncodingZlib) |
| 27 | 417 zLen = readU32(); |
| 80 | 418 else |
| 419 zLen = 0; | |
| 78 | 420 is.reset(); |
| 104 | 421 |
| 15 | 422 } |
| 54 | 423 |
| 61 | 424 int checkAndMark() throws IOException { |
| 425 int dataLen; | |
| 54 | 426 switch (encoding) { |
| 23 | 427 case RfbProto.EncodingRaw: |
| 39 | 428 dataLen = rectW * rectH * 4 + 16; |
| 130 | 429 // is.mark(dataLen); |
| 23 | 430 break; |
| 67 | 431 case RfbProto.EncodingCopyRect: |
| 432 dataLen = 16 + 4; | |
| 130 | 433 // is.mark(dataLen); |
| 67 | 434 break; |
| 435 case RfbProto.EncodingRRE: | |
| 436 case RfbProto.EncodingCoRRE: | |
| 437 case RfbProto.EncodingHextile: | |
| 80 | 438 case RfbProto.EncodingTight: |
| 439 dataLen = zLen + 20; | |
| 130 | 440 // is.mark(dataLen); |
| 80 | 441 break; |
| 67 | 442 case RfbProto.EncodingZlib: |
| 27 | 443 case RfbProto.EncodingZRLE: |
| 107 | 444 case RfbProto.EncodingZRLEE: |
| 54 | 445 dataLen = zLen + 20; |
| 156 | 446 // is.mark(dataLen); |
| 78 | 447 break; |
| 448 case RfbProto.EncodingXCursor: | |
| 449 case RfbProto.EncodingRichCursor: | |
| 450 int pixArray = rectW * rectH * 4; | |
| 451 int u8Array = (int)Math.floor((rectW + 7)/8) * rectH; | |
| 452 dataLen = pixArray + u8Array; | |
| 453 printFramebufferUpdate(); | |
| 130 | 454 // is.mark(dataLen); |
| 27 | 455 break; |
| 23 | 456 default: |
| 61 | 457 dataLen = 1000000; |
| 130 | 458 // is.mark(dataLen); |
| 54 | 459 } |
| 61 | 460 return dataLen; |
| 461 } | |
| 65 | 462 |
| 463 | |
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464 void sendDataToClient() throws Exception { |
| 61 | 465 regiFramebufferUpdate(); |
| 153 | 466 // printFramebufferUpdate(); |
| 61 | 467 int dataLen = checkAndMark(); |
| 468 readSendData(dataLen); | |
| 23 | 469 } |
| 54 | 470 |
| 471 BufferedImage createBufferedImage(Image img) { | |
| 472 BufferedImage bimg = new BufferedImage(img.getWidth(null), | |
| 473 img.getHeight(null), BufferedImage.TYPE_INT_RGB); | |
| 27 | 474 |
| 25 | 475 Graphics g = bimg.getGraphics(); |
| 476 g.drawImage(img, 0, 0, null); | |
| 477 g.dispose(); | |
| 478 return bimg; | |
| 479 } | |
| 480 | |
| 54 | 481 void createPngBytes(BufferedImage bimg) throws IOException { |
| 482 pngBytes = getImageBytes(bimg, "png"); | |
| 25 | 483 } |
| 54 | 484 |
| 485 byte[] getBytes(BufferedImage img) throws IOException { | |
| 25 | 486 byte[] b = getImageBytes(img, "png"); |
| 487 return b; | |
| 488 } | |
| 54 | 489 |
| 490 byte[] getImageBytes(BufferedImage image, String imageFormat) | |
| 491 throws IOException { | |
| 25 | 492 ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| 493 BufferedOutputStream os = new BufferedOutputStream(bos); | |
| 494 image.flush(); | |
| 495 ImageIO.write(image, imageFormat, os); | |
| 496 os.flush(); | |
| 497 os.close(); | |
| 498 return bos.toByteArray(); | |
| 499 } | |
| 500 | |
| 54 | 501 void sendPngData(Socket sock) throws IOException { |
| 26 | 502 byte[] dataLength = castIntByte(pngBytes.length); |
| 503 sock.getOutputStream().write(dataLength); | |
| 25 | 504 sock.getOutputStream().write(pngBytes); |
| 505 } | |
| 54 | 506 |
| 507 byte[] castIntByte(int len) { | |
| 26 | 508 byte[] b = new byte[4]; |
| 54 | 509 b[0] = (byte) ((len >>> 24) & 0xFF); |
| 510 b[1] = (byte) ((len >>> 16) & 0xFF); | |
| 511 b[2] = (byte) ((len >>> 8) & 0xFF); | |
| 512 b[3] = (byte) ((len >>> 0) & 0xFF); | |
| 26 | 513 return b; |
| 514 } | |
| 54 | 515 |
| 516 BufferedImage createBimg() throws IOException { | |
| 25 | 517 BufferedImage bimg = ImageIO.read(new ByteArrayInputStream(pngBytes)); |
| 518 return bimg; | |
| 519 } | |
| 104 | 520 |
| 54 | 521 void printFramebufferUpdate() { |
| 522 | |
| 18 | 523 System.out.println("messageType=" + messageType); |
| 54 | 524 System.out.println("rectangles=" + rectangles); |
| 18 | 525 System.out.println("encoding=" + encoding); |
| 78 | 526 System.out.println("rectX = "+rectX+": rectY = "+rectY); |
| 527 System.out.println("rectW = "+rectW+": rectH = "+rectH); | |
| 54 | 528 switch (encoding) { |
| 23 | 529 case RfbProto.EncodingRaw: |
| 54 | 530 System.out.println("rectW * rectH * 4 + 16 =" + rectW * rectH * 4 |
| 531 + 16); | |
| 23 | 532 break; |
| 533 default: | |
| 534 } | |
| 18 | 535 } |
| 130 | 536 int returnMsgtype() { |
| 537 return messageType; | |
| 538 } | |
| 539 | |
| 65 | 540 |
| 77 | 541 void readSpeedCheck() throws IOException { |
| 542 byte[] b = new byte[1]; | |
| 65 | 543 readFully(b); |
| 544 } | |
| 545 | |
| 77 | 546 void startSpeedCheck() { |
| 90 | 547 ByteBuffer b = ByteBuffer.allocate(10); |
| 548 b.put((byte)SpeedCheckMillis); | |
| 549 b.flip(); | |
| 66 | 550 startCheckTime = System.currentTimeMillis(); |
| 551 System.out.println("startChckTime = "+ startCheckTime); | |
| 90 | 552 LinkedList<ByteBuffer>bufs = new LinkedList<ByteBuffer>(); |
| 84 | 553 bufs.add(b); |
| 554 multicastqueue.put(bufs); | |
| 65 | 555 } |
| 556 | |
| 77 | 557 void endSpeedCheck() { |
| 65 | 558 long accTime = System.currentTimeMillis(); |
| 559 long time = accTime - startCheckTime; | |
| 560 System.out.println("checkMillis: " + time); | |
| 561 } | |
| 562 | |
| 563 | |
| 564 synchronized void changeStatusFlag() { | |
| 565 printStatusFlag = true; | |
| 566 } | |
| 567 | |
| 568 void printMills() { | |
| 569 if(printStatusFlag) { | |
| 570 | |
| 571 changeStatusFlag(); | |
| 572 } else { | |
| 573 changeStatusFlag(); | |
| 574 } | |
| 575 } | |
| 87 | 576 |
| 577 void speedCheckMillis() { | |
| 578 Runnable stdin = new Runnable() { | |
| 579 public void run() { | |
| 580 int c; | |
| 581 try { | |
| 582 while( (c = System.in.read()) != -1 ) { | |
| 583 switch(c) { | |
| 584 case 's': | |
| 585 break; | |
| 586 default: | |
| 587 startSpeedCheck(); | |
| 588 break; | |
| 589 } | |
| 590 } | |
| 591 }catch(IOException e){ | |
| 592 System.out.println(e); | |
| 593 } | |
| 594 } | |
| 595 }; | |
| 596 | |
| 597 new Thread(stdin).start(); | |
| 598 } | |
| 162 | 599 |
| 600 void requestThreadStart() { | |
| 601 requestThread.start(); | |
| 602 } | |
| 603 | |
| 184 | 604 |
| 162 | 605 public synchronized void requestThreadNotify() { |
| 606 rThread.reStart(); | |
| 607 } | |
| 608 | |
| 86 | 609 |
| 87 | 610 /** |
| 611 * gzip byte arrays | |
| 612 * @param deflater | |
| 613 * @param inputs | |
| 614 * byte data[] | |
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615 * @param inputIndex |
| 87 | 616 * @param outputs |
| 617 * byte data[] | |
| 618 * @return byte length in last byte array | |
| 619 * @throws IOException | |
| 620 */ | |
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621 public int zip(Deflater deflater,LinkedList<ByteBuffer> inputs, int inputIndex, LinkedList<ByteBuffer> outputs) throws IOException { |
| 102 | 622 int len = 0; |
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623 ByteBuffer c1= ByteBuffer.allocate(INFLATE_BUFSIZE); |
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624 while(inputIndex < inputs.size() ) { |
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625 ByteBuffer b1 = inputs.get(inputIndex++); |
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626 deflater.setInput(b1.array(),b1.position(),b1.remaining()); |
| 106 | 627 /** |
| 628 * If we finish() stream and reset() it, Deflater start new gzip stream, this makes continuous zlib reader unhappy. | |
| 629 * if we remove finish(), Deflater.deflate() never flushes its output. The original zlib deflate has flush flag. I'm pretty | |
| 630 * sure this a kind of bug of Java library. | |
| 631 */ | |
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632 if (inputIndex==inputs.size()) |
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633 deflater.finish(); |
| 106 | 634 int len1 = 0; |
| 86 | 635 do { |
| 106 | 636 len1 = deflater.deflate(c1.array(),c1.position(),c1.remaining()); |
| 102 | 637 if (len1>0) { |
| 638 len += len1; | |
| 639 c1.position(c1.position()+len1); | |
| 640 if (c1.remaining()==0) { | |
| 641 c1.flip(); outputs.addLast(c1); | |
| 642 c1 = ByteBuffer.allocate(INFLATE_BUFSIZE); | |
| 643 } | |
| 86 | 644 } |
| 106 | 645 } while (len1 >0 || !deflater.needsInput()); // &&!deflater.finished()); |
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646 } |
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647 if (c1.position()!=0) { |
| 102 | 648 c1.flip(); outputs.addLast(c1); |
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649 } |
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650 deflater.reset(); |
| 90 | 651 return len; |
| 86 | 652 } |
| 87 | 653 |
| 654 /** | |
| 655 * gunzip byte arrays | |
| 656 * @param inflater | |
| 657 * @param inputs | |
| 658 * byte data[] | |
| 659 * @param outputs | |
| 660 * byte data[] | |
| 91 | 661 *@return number of total bytes |
| 87 | 662 * @throws IOException |
| 663 */ | |
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664 public int unzip(Inflater inflater, LinkedList<ByteBuffer> inputs, int inputIndex, LinkedList<ByteBuffer> outputs,int bufSize) |
| 88 | 665 throws DataFormatException { |
| 102 | 666 int len=0; |
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667 ByteBuffer buf = ByteBuffer.allocate(bufSize); |
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668 while (inputIndex < inputs.size()) { |
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669 ByteBuffer input = inputs.get(inputIndex++); |
| 102 | 670 inflater.setInput(input.array(),input.position(),input.limit()); |
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671 // if (inputIndex==inputs.size()) if inflater/deflater has symmetry, we need this |
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672 // inflater.end(); but this won't work |
| 88 | 673 do { |
| 102 | 674 int len0 = inflater.inflate(buf.array(),buf.position(),buf.remaining()); |
| 675 if (len0>0) { | |
| 676 buf.position(buf.position()+len0); | |
| 677 len += len0; | |
| 678 if (buf.remaining()==0) { | |
| 679 buf.flip(); | |
| 680 outputs.addLast(buf); | |
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681 buf = ByteBuffer.allocate(bufSize); |
| 102 | 682 } |
| 91 | 683 } |
| 102 | 684 } while (!inflater.needsInput()); |
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685 } |
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686 if (buf.position()!=0) { |
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687 buf.flip(); |
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688 outputs.addLast(buf); |
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689 } |
| 90 | 690 return len; |
| 86 | 691 } |
| 156 | 692 |
| 65 | 693 |
| 156 | 694 float maxMag = 1; |
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695 /** |
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696 * send data to clients |
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697 * @param dataLen |
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698 * @throws IOException |
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699 * @throws DataFormatException |
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700 * |
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701 * Zlibed packet is compressed in context dependent way, that is, it have to send from the beginning. But this is |
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702 * impossible. So we have to compress it again for each clients. Separate deflater for each clients is necessary. |
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703 * |
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704 * Java's deflater does not support flush. This means to get the result, we have to finish the compression. Reseting |
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705 * start new compression, but it is not accepted well in zlib continuous reading. So we need new Encoding ZRLEE |
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706 * 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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707 * ZRLEE compression is not context dependent, so no recompression is necessary. |
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708 */ |
| 86 | 709 void readSendData(int dataLen) throws IOException, DataFormatException { |
| 90 | 710 LinkedList<ByteBuffer>bufs = new LinkedList<ByteBuffer>(); |
| 711 ByteBuffer header = ByteBuffer.allocate(16); | |
| 712 readFully(header.array(),0,16); | |
| 713 header.limit(16); | |
| 714 if (header.get(0)==RfbProto.FramebufferUpdate) { | |
| 715 int encoding = header.getInt(12); | |
| 107 | 716 if (encoding==RfbProto.EncodingZRLE||encoding==RfbProto.EncodingZlib) { // ZRLEE is already recompressed |
| 90 | 717 ByteBuffer len = ByteBuffer.allocate(4); |
| 718 readFully(len.array(),0,4); len.limit(4); | |
| 719 ByteBuffer inputData = ByteBuffer.allocate(dataLen-20); | |
| 151 | 720 |
| 721 startTiming(); | |
| 90 | 722 readFully(inputData.array(),0,inputData.capacity()); inputData.limit(dataLen-20); |
| 151 | 723 stopTiming(); |
| 724 | |
| 90 | 725 LinkedList<ByteBuffer>inputs = new LinkedList<ByteBuffer>(); |
| 88 | 726 inputs.add(inputData); |
| 107 | 727 |
| 728 header.putInt(12, RfbProto.EncodingZRLEE); // means recompress every time | |
| 729 // using new Deflecter every time is incompatible with the protocol, clients have to be modified. | |
| 730 Deflater nDeflater = deflater; // new Deflater(); | |
| 731 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); | |
| 732 unzip(inflater, inputs, 0 , out, INFLATE_BUFSIZE); | |
| 733 // dump32(inputs); | |
| 734 int len2 = zip(nDeflater, out, 0, bufs); | |
| 735 ByteBuffer blen = ByteBuffer.allocate(4); blen.putInt(len2); blen.flip(); | |
| 736 bufs.addFirst(blen); | |
| 737 | |
| 87 | 738 bufs.addFirst(header); |
| 86 | 739 multicastqueue.put(bufs); |
| 156 | 740 // is.reset(); |
| 130 | 741 |
| 156 | 742 /* |
| 743 System.out.println("ZRLE = "+dataLen); | |
| 744 System.out.println("ZRLEE = "+(len2+20)); | |
| 745 float mag = (float)dataLen / (float)(len2 + 20); | |
| 746 System.out.println("ZRLE / ZRLEE = "+ mag); | |
| 747 if(mag > maxMag) maxMag = mag; | |
| 748 System.out.println("maxMag = "+maxMag); | |
| 749 */ | |
| 86 | 750 return ; |
| 751 } | |
| 87 | 752 bufs.add(header); |
| 753 if (dataLen>16) { | |
| 90 | 754 ByteBuffer b = ByteBuffer.allocate(dataLen-16); |
| 156 | 755 startTiming(); |
| 90 | 756 readFully(b.array(),0,dataLen-16); b.limit(dataLen-16); |
| 156 | 757 stopTiming(); |
| 87 | 758 bufs.add(b); |
| 759 } | |
| 86 | 760 multicastqueue.put(bufs); |
| 135 | 761 // is.reset(); |
| 762 return ; | |
| 130 | 763 } |
| 764 is.reset(); | |
| 86 | 765 |
| 766 // It may be compressed. We can inflate here to avoid repeating clients decompressing here, | |
| 767 // but it may generate too many large data. It is better to do it in each client. | |
| 768 // But we have do inflation for all input data, so we have to do it here. | |
| 769 } | |
| 43 | 770 |
| 71 | 771 void newClient(AcceptThread acceptThread, final Socket newCli, |
| 54 | 772 final OutputStream os, final InputStream is) throws IOException { |
| 773 // createBimgFlag = true; | |
| 774 // rfb.addSockTmp(newCli); | |
| 775 // addSock(newCli); | |
| 112 | 776 final int myId = clients; |
| 90 | 777 final Client <LinkedList<ByteBuffer>> c = multicastqueue.newClient(); |
|
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778 final AtomicInteger writerRunning = new AtomicInteger(); |
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779 writerRunning.set(1); |
| 112 | 780 /** |
| 781 * Timeout thread. If a client is suspended, it has top of queue indefinitely, which caused memory | |
| 782 * overflow. After the timeout, we poll the queue and discard it. Start long wait if writer is running. | |
| 783 */ | |
|
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784 final Runnable timer = new Runnable() { |
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785 public void run() { |
|
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786 int count = 0; |
|
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787 for(;;) { |
| 114 | 788 long timeout = 30000/8; |
|
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789 try { |
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790 synchronized(this) { |
|
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791 int state,flag; |
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792 writerRunning.set(0); |
|
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793 wait(timeout); |
|
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794 flag = 0; |
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795 while((state=writerRunning.get())==0) { |
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796 c.poll(); // discard, should be timeout |
|
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797 count++; |
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798 if (flag==0) { |
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799 System.out.println("Discarding "+myId + " count="+ count); flag = 1; |
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800 } |
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801 wait(10); // if this is too short, writer cannot take the poll, if this is too long, memory will overflow... |
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802 } |
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803 if (flag==1) System.out.println("Resuming "+myId + " count="+count); |
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804 if (state!=1) { |
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805 System.out.println("Client died "+myId); |
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806 break; |
|
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807 } |
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808 } |
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809 } catch (InterruptedException e) { |
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810 } |
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811 } |
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812 } |
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813 }; |
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814 new Thread(timer).start(); |
| 112 | 815 /** |
| 816 * discard all incoming from clients | |
| 817 */ | |
| 102 | 818 final Runnable reader = new Runnable() { |
| 819 public void run() { | |
| 820 byte b[] = new byte[4096]; | |
| 821 for(;;) { | |
| 822 try { | |
| 823 int c = is.read(b); | |
| 824 if (c<=0) throw new IOException(); | |
|
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825 // System.out.println("client read "+c); |
| 102 | 826 } catch (IOException e) { |
| 827 try { | |
|
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828 writerRunning.set(2); |
| 102 | 829 os.close(); |
| 830 is.close(); | |
| 831 } catch (IOException e1) { | |
| 832 } | |
| 833 return; | |
| 834 } | |
| 835 } | |
| 836 } | |
| 837 }; | |
| 112 | 838 /** |
| 839 * send packets to a client | |
| 840 */ | |
| 54 | 841 Runnable sender = new Runnable() { |
| 842 public void run() { | |
|
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843 writerRunning.set(1); |
| 54 | 844 try { |
|
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845 requestThreadNotify(); |
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846 |
| 65 | 847 /** |
| 848 * initial connection of RFB protocol | |
| 849 */ | |
| 54 | 850 sendRfbVersion(os); |
| 131 | 851 // readVersionMsg(is); |
| 155 | 852 int rfbMinor = readVersionMsg(is,os); |
| 54 | 853 sendSecurityType(os); |
| 854 readSecType(is); | |
| 855 sendSecResult(os); | |
| 856 readClientInit(is); | |
| 857 sendInitData(os); | |
| 112 | 858 new Thread(reader).start(); // discard incoming packet here after. |
| 162 | 859 // writeFramebufferUpdateRequest(0,0, framebufferWidth, framebufferHeight, false ); |
| 54 | 860 for (;;) { |
| 90 | 861 LinkedList<ByteBuffer> bufs = c.poll(); |
|
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862 int inputIndex = 0; |
|
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863 ByteBuffer header = bufs.get(inputIndex); |
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864 if (header==null) continue; |
| 90 | 865 if (header.get(0)==RfbProto.FramebufferUpdate) { |
|
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866 // System.out.println("client "+ myId); |
| 87 | 867 } |
|
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868 writeToClient(os, bufs, inputIndex); |
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869 writerRunning.set(1); // yes my client is awaking. |
| 54 | 870 } |
| 871 } catch (IOException e) { | |
|
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872 try { |
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873 writerRunning.set(2); |
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874 os.close(); |
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875 } catch (IOException e1) { |
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876 } |
| 87 | 877 /* if socket closed cliList.remove(newCli); */ |
| 54 | 878 } |
| 879 } | |
|
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880 |
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881 public void writeToClient(final OutputStream os, |
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882 LinkedList<ByteBuffer> bufs, int inputIndex) |
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883 throws IOException { |
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884 while(inputIndex < bufs.size()) { |
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885 ByteBuffer b = bufs.get(inputIndex++); |
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886 os.write(b.array(), b.position(), b.limit()); |
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887 } |
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888 os.flush(); |
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889 } |
| 54 | 890 }; |
| 80 | 891 clients++; |
| 54 | 892 new Thread(sender).start(); |
| 893 | |
| 894 } | |
| 66 | 895 |
| 896 | |
|
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897 public void dump32(LinkedList<ByteBuffer>bufs) { |
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898 int len =0; |
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899 for(ByteBuffer b: bufs) len += b.remaining(); |
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900 ByteBuffer top = bufs.getFirst(); |
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901 ByteBuffer end = bufs.getLast(); |
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902 System.err.println("length: "+len); |
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903 System.err.print("head 0: "); |
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904 for(int i = 0; i<16 && i < top.remaining(); i++) { |
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905 System.err.print(" "+ top.get(i)); |
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906 } |
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907 System.err.print("tail 0: "); |
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908 for(int i = 0; i<16 && i < end.remaining(); i++) { |
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909 System.err.print(" "+end.get(i)); |
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910 } |
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911 System.err.println(); |
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912 } |
| 88 | 913 |
| 914 @Test | |
| 915 public void test1() { | |
| 916 try { | |
| 90 | 917 LinkedList<ByteBuffer> in = new LinkedList<ByteBuffer>(); |
| 918 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); | |
| 919 LinkedList<ByteBuffer> out2 = new LinkedList<ByteBuffer>(); | |
| 107 | 920 // if (false) { |
| 921 // for(int i=0;i<10;i++) { | |
| 922 // in.add(ByteBuffer.wrap("test1".getBytes())); | |
| 923 // in.add(ByteBuffer.wrap("test2".getBytes())); | |
| 924 // in.add(ByteBuffer.wrap("test3".getBytes())); | |
| 925 // in.add(ByteBuffer.wrap("test44".getBytes())); | |
| 926 // } | |
| 927 // } else | |
| 928 { | |
| 106 | 929 String t = ""; |
| 930 for(int i=0;i<10;i++) { | |
| 931 t += "test1"; | |
| 932 t += "test2"; | |
| 933 t += "test3"; | |
| 934 t += "test44"; | |
| 935 } | |
| 936 in.add(ByteBuffer.wrap(t.getBytes())); | |
| 937 } | |
| 938 | |
| 92 | 939 LinkedList<ByteBuffer> in1 = clone(in); |
| 90 | 940 |
| 88 | 941 Deflater deflater = new Deflater(); |
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942 zip(deflater,in,0,out); |
| 92 | 943 // LinkedList<ByteBuffer> out3 = clone(out); zipped result is depend on deflator's state |
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944 unzip(inflater, out, 0,out2, INFLATE_BUFSIZE); |
| 106 | 945 // inflater.reset(); |
| 92 | 946 equalByteBuffers(in1, out2); |
| 947 LinkedList<ByteBuffer> out4 = new LinkedList<ByteBuffer>(); | |
| 104 | 948 deflater = new Deflater(); |
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949 zip(deflater,out2,0,out4); |
| 92 | 950 LinkedList<ByteBuffer> out5 = new LinkedList<ByteBuffer>(); |
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951 unzip(inflater,out4,0, out5, INFLATE_BUFSIZE); |
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952 int len = equalByteBuffers(in1,out5); |
| 92 | 953 |
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954 System.out.println("Test Ok. "+len); |
| 88 | 955 } catch (Exception e) { |
| 956 assertEquals(0,1); | |
| 957 } | |
| 958 } | |
| 959 | |
| 92 | 960 private LinkedList<ByteBuffer> clone(LinkedList<ByteBuffer> in) { |
| 961 LinkedList<ByteBuffer> copy = new LinkedList<ByteBuffer>(); | |
| 962 for(ByteBuffer b: in) { | |
| 963 ByteBuffer c = b.duplicate(); | |
| 964 copy.add(c); | |
| 965 } | |
| 966 return copy; | |
| 967 } | |
| 968 | |
| 93 | 969 |
| 970 | |
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971 public int equalByteBuffers(LinkedList<ByteBuffer> in, |
| 92 | 972 LinkedList<ByteBuffer> out2) { |
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973 int len = 0; |
| 93 | 974 Iterable<Byte> i = byteBufferIterator(in); |
| 975 Iterator<Byte> o = byteBufferIterator(out2).iterator(); | |
| 976 | |
| 977 for(int b: i) { | |
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978 len ++; |
| 93 | 979 if (o.hasNext()) { |
| 980 int c = o.next(); | |
| 981 assertEquals(b,c); | |
| 982 } else | |
| 983 assertEquals(0,1); | |
| 984 } | |
| 104 | 985 if (o.hasNext()) |
| 986 assertEquals(0,1); | |
| 93 | 987 // System.out.println(); |
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988 return len; |
| 93 | 989 } |
| 990 | |
| 991 private Iterable<Byte> byteBufferIterator(final LinkedList<ByteBuffer> in) { | |
| 992 return new Iterable<Byte>() { | |
| 993 public Iterator<Byte> iterator() { | |
| 994 return new Iterator<Byte>() { | |
| 995 int bytes = 0; | |
| 996 int buffers = 0; | |
| 997 public boolean hasNext() { | |
| 104 | 998 for(;;) { |
| 999 if (buffers>=in.size()) return false; | |
| 1000 ByteBuffer b = in.get(buffers); | |
| 1001 if (! (bytes<b.remaining())) { | |
| 1002 buffers ++; bytes=0; | |
| 1003 } else return true; | |
| 1004 } | |
| 92 | 1005 } |
| 93 | 1006 public Byte next() { |
| 104 | 1007 ByteBuffer bf =in.get(buffers); |
| 93 | 1008 byte b = bf.get(bytes++); |
| 1009 if (bf.remaining()<=bytes) { | |
| 1010 buffers++; | |
| 1011 bytes = 0; | |
| 1012 } | |
| 1013 // System.out.print(b); | |
| 1014 return b; | |
| 1015 } | |
| 1016 public void remove() { | |
| 1017 } | |
| 1018 }; | |
| 92 | 1019 } |
| 93 | 1020 }; |
| 92 | 1021 } |
| 1022 | |
| 54 | 1023 } |
| 66 | 1024 |
| 1025 |