Mercurial > hg > Members > nobuyasu > tightVNCProxy
annotate src/myVncProxy/MyRfbProto.java @ 176:189af4af9b2b
modify checkArgs
| author | e085711 |
|---|---|
| date | Mon, 24 Oct 2011 20:23:16 +0900 |
| parents | 1d16dcf966e1 |
| children | da276538c1d5 |
| rev | line source |
|---|---|
| 24 | 1 package myVncProxy; |
| 54 | 2 |
| 88 | 3 import static org.junit.Assert.*; |
| 4 | |
| 25 | 5 import java.awt.Graphics; |
| 6 import java.awt.Image; | |
| 7 import java.awt.image.BufferedImage; | |
| 8 import java.io.BufferedOutputStream; | |
| 15 | 9 import java.io.BufferedReader; |
| 25 | 10 import java.io.ByteArrayInputStream; |
| 11 import java.io.ByteArrayOutputStream; | |
| 10 | 12 import java.io.IOException; |
| 43 | 13 import java.io.InputStream; |
| 15 | 14 import java.io.InputStreamReader; |
| 23 | 15 import java.net.BindException; |
| 10 | 16 import java.net.ServerSocket; |
| 17 import java.net.Socket; | |
| 90 | 18 import java.nio.ByteBuffer; |
| 93 | 19 import java.util.Iterator; |
| 10 | 20 import java.util.LinkedList; |
| 21 | |
| 25 | 22 import javax.imageio.ImageIO; |
| 23 | |
| 88 | 24 import org.junit.Test; |
| 25 | |
| 54 | 26 import myVncProxy.MulticastQueue.Client; |
| 27 | |
| 40 | 28 import java.util.concurrent.ExecutorService; |
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29 import java.util.concurrent.atomic.AtomicInteger; |
| 80 | 30 import java.util.zip.DataFormatException; |
| 31 import java.util.zip.Deflater; | |
| 32 import java.util.zip.Inflater; | |
| 40 | 33 import java.io.OutputStream; |
| 10 | 34 |
| 88 | 35 public |
| 107 | 36 class MyRfbProto extends RfbProto { |
| 154 | 37 final static String versionMsg_3_855 = "RFB 003.855\n"; |
| 65 | 38 /** |
| 154 | 39 * CheckMillis is one of new msgType for RFB 3.855. |
| 65 | 40 */ |
| 90 | 41 final static byte SpeedCheckMillis = 4; |
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42 |
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43 // Secyrity type of OS X |
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44 final static int SecTypeReqAccess = 32; |
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45 |
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46 // Supported authentication types |
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47 final static int AuthAccess = 32; |
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48 |
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49 |
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50 |
| 83 | 51 private static final int INFLATE_BUFSIZE = 1024*100; |
| 65 | 52 boolean printStatusFlag = false; |
| 53 long startCheckTime; | |
| 54 | 54 |
| 18 | 55 private int messageType; |
| 56 private int rectangles; | |
| 23 | 57 private int rectX; |
| 58 private int rectY; | |
| 59 private int rectW; | |
| 60 private int rectH; | |
| 18 | 61 private int encoding; |
| 27 | 62 private int zLen; |
| 104 | 63 private boolean clicomp = false; |
| 18 | 64 |
| 23 | 65 private ServerSocket servSock; |
| 144 | 66 protected int acceptPort; |
| 10 | 67 private byte initData[]; |
| 54 | 68 private LinkedList<Socket> cliListTmp; |
| 69 private LinkedList<Socket> cliList; | |
| 27 | 70 boolean createBimgFlag; |
| 155 | 71 boolean proxyFlag = true; |
| 54 | 72 |
| 40 | 73 ExecutorService executor; |
| 54 | 74 |
| 25 | 75 byte[] pngBytes; |
| 54 | 76 |
| 102 | 77 // private MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MostRecentMultiCast<LinkedList<ByteBuffer>>(10); |
| 78 private MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MulticastQueue<LinkedList<ByteBuffer>>(); | |
| 80 | 79 private int clients = 0; |
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80 private Inflater inflater = new Inflater(); |
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81 private Deflater deflater = new Deflater(); |
| 130 | 82 private CreateThread geth; |
| 162 | 83 // private Thread requestThread; |
| 84 private RequestScreenThread rThread; | |
| 85 private Thread requestThread; | |
| 130 | 86 |
| 88 | 87 public |
| 88 MyRfbProto() throws IOException { | |
| 89 } | |
| 90 | |
| 54 | 91 MyRfbProto(String h, int p, VncViewer v) throws IOException { |
| 10 | 92 super(h, p, v); |
| 162 | 93 |
| 94 rThread = new RequestScreenThread(this); | |
| 95 requestThread = new Thread(rThread); | |
| 96 // requestThread = new Thread(new RequestScreenThread(this)); | |
| 10 | 97 } |
| 98 | |
| 130 | 99 MyRfbProto(String h, int p, CreateThread geth) throws IOException { |
| 128 | 100 super(h, p); |
| 130 | 101 this.geth = geth; |
| 155 | 102 proxyFlag = true; |
| 162 | 103 |
| 104 rThread = new RequestScreenThread(this); | |
| 105 requestThread = new Thread(rThread); | |
| 106 // requestThread = new Thread(new RequestScreenThread(this)); | |
| 128 | 107 } |
| 130 | 108 |
| 13 | 109 MyRfbProto(String h, int p) throws IOException { |
| 110 super(h, p); | |
| 162 | 111 |
| 112 rThread = new RequestScreenThread(this); | |
| 113 requestThread = new Thread(rThread); | |
| 114 // requestThread = new Thread(new RequestScreenThread(this)); | |
| 13 | 115 } |
| 162 | 116 |
| 44 | 117 // over write |
| 43 | 118 void writeVersionMsg() throws IOException { |
| 119 clientMajor = 3; | |
| 154 | 120 if (serverMinor == 855) { |
| 121 clientMinor = 855; | |
| 122 os.write(versionMsg_3_855.getBytes()); | |
| 43 | 123 } else if (serverMajor > 3 || serverMinor >= 8) { |
| 124 clientMinor = 8; | |
| 125 os.write(versionMsg_3_8.getBytes()); | |
| 126 } else if (serverMinor >= 7) { | |
| 127 clientMinor = 7; | |
| 128 os.write(versionMsg_3_7.getBytes()); | |
| 129 } else { | |
| 130 clientMinor = 3; | |
| 131 os.write(versionMsg_3_3.getBytes()); | |
| 132 } | |
| 133 protocolTightVNC = false; | |
| 134 initCapabilities(); | |
| 135 } | |
| 136 | |
| 54 | 137 void initServSock(int port) throws IOException { |
| 10 | 138 servSock = new ServerSocket(port); |
| 23 | 139 acceptPort = port; |
| 10 | 140 } |
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141 |
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142 void authenticationRequestAccess() throws IOException { |
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143 |
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144 byte[] inBuf = new byte[260]; |
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145 int i = 0; |
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146 readFully(inBuf); |
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147 |
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148 byte[] outBuf = new byte[256]; |
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149 os.write(outBuf); |
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150 os.flush(); |
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151 |
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152 int result = readU32(); |
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153 if(result == 1) { |
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154 System.out.println("faild authentication "); |
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155 throw new IOException(); |
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156 } |
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157 |
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158 |
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159 |
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160 |
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161 } |
| 54 | 162 |
| 153 | 163 /* |
| 164 * default port number is 5999. | |
| 165 */ | |
| 80 | 166 void selectPort(int p) { |
| 144 | 167 if(servSock != null ) return ; |
| 80 | 168 int port = p; |
| 54 | 169 while (true) { |
| 170 try { | |
| 80 | 171 initServSock(port); |
| 23 | 172 break; |
| 54 | 173 } catch (BindException e) { |
| 80 | 174 port++; |
| 23 | 175 continue; |
| 54 | 176 } catch (IOException e) { |
| 10 | 177 |
| 23 | 178 } |
| 179 } | |
| 80 | 180 System.out.println("accept port = " + port); |
| 23 | 181 } |
| 54 | 182 |
| 183 int getAcceptPort() { | |
| 23 | 184 return acceptPort; |
| 185 } | |
| 54 | 186 |
| 10 | 187 void setSoTimeout(int num) throws IOException { |
| 188 servSock.setSoTimeout(num); | |
| 189 } | |
| 54 | 190 |
| 10 | 191 Socket accept() throws IOException { |
| 192 return servSock.accept(); | |
| 193 } | |
| 194 | |
| 54 | 195 void addSock(Socket sock) { |
| 10 | 196 cliList.add(sock); |
| 197 } | |
| 54 | 198 |
| 199 void addSockTmp(Socket sock) { | |
| 200 System.out.println("connected " + sock.getInetAddress()); | |
| 27 | 201 cliListTmp.add(sock); |
| 202 } | |
| 54 | 203 |
| 10 | 204 boolean markSupported() { |
| 205 return is.markSupported(); | |
| 206 } | |
| 54 | 207 |
| 10 | 208 void readServerInit() throws IOException { |
| 54 | 209 |
| 78 | 210 is.mark(255); |
| 10 | 211 skipBytes(20); |
| 212 int nlen = readU32(); | |
| 54 | 213 int blen = 20 + 4 + nlen; |
| 10 | 214 initData = new byte[blen]; |
| 78 | 215 is.reset(); |
| 10 | 216 |
| 78 | 217 is.mark(blen); |
| 10 | 218 readFully(initData); |
| 78 | 219 is.reset(); |
| 54 | 220 |
| 10 | 221 framebufferWidth = readU16(); |
| 222 framebufferHeight = readU16(); | |
| 223 bitsPerPixel = readU8(); | |
| 224 depth = readU8(); | |
| 225 bigEndian = (readU8() != 0); | |
| 226 trueColour = (readU8() != 0); | |
| 227 redMax = readU16(); | |
| 228 greenMax = readU16(); | |
| 229 blueMax = readU16(); | |
| 230 redShift = readU8(); | |
| 231 greenShift = readU8(); | |
| 232 blueShift = readU8(); | |
| 233 byte[] pad = new byte[3]; | |
| 234 readFully(pad); | |
| 235 int nameLength = readU32(); | |
| 236 byte[] name = new byte[nameLength]; | |
| 237 readFully(name); | |
| 238 desktopName = new String(name); | |
| 239 | |
| 240 // Read interaction capabilities (TightVNC protocol extensions) | |
| 241 if (protocolTightVNC) { | |
| 242 int nServerMessageTypes = readU16(); | |
| 243 int nClientMessageTypes = readU16(); | |
| 244 int nEncodingTypes = readU16(); | |
| 245 readU16(); | |
| 246 readCapabilityList(serverMsgCaps, nServerMessageTypes); | |
| 247 readCapabilityList(clientMsgCaps, nClientMessageTypes); | |
| 248 readCapabilityList(encodingCaps, nEncodingTypes); | |
| 249 } | |
| 250 | |
| 251 inNormalProtocol = true; | |
| 252 } | |
| 253 | |
| 54 | 254 void sendRfbVersion(OutputStream os) throws IOException { |
| 138 | 255 // os.write(versionMsg_3_8.getBytes()); |
| 154 | 256 os.write(versionMsg_3_855.getBytes()); |
| 43 | 257 } |
| 54 | 258 |
| 155 | 259 int readVersionMsg(InputStream is, OutputStream os) throws IOException { |
| 45 | 260 |
| 261 byte[] b = new byte[12]; | |
| 262 | |
| 263 is.read(b); | |
| 264 | |
| 265 if ((b[0] != 'R') || (b[1] != 'F') || (b[2] != 'B') || (b[3] != ' ') | |
| 266 || (b[4] < '0') || (b[4] > '9') || (b[5] < '0') || (b[5] > '9') | |
| 267 || (b[6] < '0') || (b[6] > '9') || (b[7] != '.') | |
| 268 || (b[8] < '0') || (b[8] > '9') || (b[9] < '0') || (b[9] > '9') | |
| 269 || (b[10] < '0') || (b[10] > '9') || (b[11] != '\n')) { | |
| 270 throw new IOException("Host " + host + " port " + port | |
| 271 + " is not an RFB server"); | |
| 272 } | |
| 273 | |
| 155 | 274 int rfbMajor = (b[4] - '0') * 100 + (b[5] - '0') * 10 + (b[6] - '0'); |
| 275 int rfbMinor = (b[8] - '0') * 100 + (b[9] - '0') * 10 + (b[10] - '0'); | |
| 45 | 276 |
| 155 | 277 if (rfbMajor < 3) { |
| 45 | 278 throw new IOException( |
| 141 | 279 "RFB server does not support protocol version 3"); |
| 54 | 280 } |
| 281 | |
| 155 | 282 if (rfbMinor == 855) { |
| 283 sendProxyFlag(os); | |
| 284 if(proxyFlag)sendPortNumber(os); | |
| 130 | 285 } |
| 155 | 286 return rfbMinor; |
| 287 } | |
| 288 void sendProxyFlag(OutputStream os) throws IOException { | |
| 289 if(proxyFlag) os.write(1); | |
| 290 else os.write(0); | |
| 291 } | |
| 292 | |
| 293 boolean readProxyFlag() throws IOException{ | |
| 294 int flag = readU8(); | |
| 295 if(flag == 1) | |
| 296 return true; | |
| 297 else | |
| 298 return false; | |
| 130 | 299 } |
| 300 | |
| 131 | 301 void sendPortNumber(OutputStream os) throws IOException { |
| 130 | 302 byte[] b = new byte[4]; |
| 303 b = castIntByte(geth.port); | |
| 304 os.write(b); | |
| 54 | 305 } |
| 306 | |
| 43 | 307 void sendSecurityType(OutputStream os) throws IOException { |
| 308 // number-of-security-types | |
| 309 os.write(1); | |
| 54 | 310 // security-types |
| 43 | 311 // 1:None |
| 312 os.write(1); | |
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313 |
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314 /* |
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315 os.write(4); |
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316 os.write(30); |
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317 os.write(31); |
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318 os.write(32); |
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319 os.write(35); |
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320 os.flush(); |
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321 */ |
| 43 | 322 } |
| 54 | 323 |
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324 void readSecType(InputStream is) throws IOException { |
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325 byte[] b = new byte[1]; |
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326 is.read(b); |
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327 } |
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328 |
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329 |
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330 void readSecType(InputStream is, OutputStream os) throws IOException { |
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331 byte[] b = new byte[1]; |
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332 is.read(b); |
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333 |
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334 int count = 260; |
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335 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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336 for(int i=0; i<count; i++ ) { |
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337 os.write((byte)data[i]); |
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338 os.flush(); |
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339 } |
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340 |
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341 byte[] c = new byte[256]; |
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342 is.read(c); |
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343 |
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344 System.out.println(new String(c)); |
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345 |
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346 } |
| 54 | 347 |
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348 |
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349 void sendSecResult(OutputStream os) throws IOException { |
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350 byte[] b = castIntByte(0); |
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351 os.write(b); |
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352 } |
| 54 | 353 |
| 43 | 354 void readClientInit(InputStream in) throws IOException { |
| 355 byte[] b = new byte[0]; | |
| 356 in.read(b); | |
| 357 } | |
| 54 | 358 |
| 359 void sendInitData(OutputStream os) throws IOException { | |
| 360 os.write(initData); | |
| 10 | 361 } |
| 362 | |
| 54 | 363 |
| 364 void sendPngImage() { | |
| 365 try { | |
| 366 for (Socket cli : cliListTmp) { | |
| 367 try { | |
| 27 | 368 sendPngData(cli); |
| 369 addSock(cli); | |
| 54 | 370 } catch (IOException e) { |
| 27 | 371 // if socket closed |
| 372 cliListTmp.remove(cli); | |
| 373 } | |
| 374 } | |
| 54 | 375 // System.out.println("cliSize="+cliSize()); |
| 376 } catch (Exception e) { | |
| 27 | 377 } |
| 378 cliListTmp.clear(); | |
| 379 } | |
| 380 | |
| 15 | 381 boolean ready() throws IOException { |
| 382 BufferedReader br = new BufferedReader(new InputStreamReader(is)); | |
| 383 return br.ready(); | |
| 54 | 384 } |
| 10 | 385 |
| 54 | 386 int cliSize() { |
| 10 | 387 return cliList.size(); |
| 54 | 388 } |
| 389 | |
| 390 void printNumBytesRead() { | |
| 391 System.out.println("numBytesRead=" + numBytesRead); | |
| 392 } | |
| 393 | |
| 394 | |
| 61 | 395 |
| 54 | 396 void regiFramebufferUpdate() throws IOException { |
| 78 | 397 is.mark(20); |
| 80 | 398 messageType = readU8(); // 0 |
| 399 skipBytes(1); // 1 | |
| 400 rectangles = readU16(); // 2 | |
| 401 rectX = readU16(); // 4 | |
| 402 rectY = readU16(); // 6 | |
| 403 rectW = readU16(); // 8 | |
| 404 rectH = readU16(); // 10 | |
| 405 encoding = readU32(); // 12 | |
| 122 | 406 // System.out.println("encoding = "+encoding); |
| 107 | 407 if (encoding == EncodingZRLE|| encoding==EncodingZRLEE||encoding==EncodingZlib) |
| 27 | 408 zLen = readU32(); |
| 80 | 409 else |
| 410 zLen = 0; | |
| 78 | 411 is.reset(); |
| 104 | 412 |
| 15 | 413 } |
| 54 | 414 |
| 61 | 415 int checkAndMark() throws IOException { |
| 416 int dataLen; | |
| 54 | 417 switch (encoding) { |
| 23 | 418 case RfbProto.EncodingRaw: |
| 39 | 419 dataLen = rectW * rectH * 4 + 16; |
| 130 | 420 // is.mark(dataLen); |
| 23 | 421 break; |
| 67 | 422 case RfbProto.EncodingCopyRect: |
| 423 dataLen = 16 + 4; | |
| 130 | 424 // is.mark(dataLen); |
| 67 | 425 break; |
| 426 case RfbProto.EncodingRRE: | |
| 427 case RfbProto.EncodingCoRRE: | |
| 428 case RfbProto.EncodingHextile: | |
| 80 | 429 case RfbProto.EncodingTight: |
| 430 dataLen = zLen + 20; | |
| 130 | 431 // is.mark(dataLen); |
| 80 | 432 break; |
| 67 | 433 case RfbProto.EncodingZlib: |
| 27 | 434 case RfbProto.EncodingZRLE: |
| 107 | 435 case RfbProto.EncodingZRLEE: |
| 54 | 436 dataLen = zLen + 20; |
| 156 | 437 // is.mark(dataLen); |
| 78 | 438 break; |
| 439 case RfbProto.EncodingXCursor: | |
| 440 case RfbProto.EncodingRichCursor: | |
| 441 int pixArray = rectW * rectH * 4; | |
| 442 int u8Array = (int)Math.floor((rectW + 7)/8) * rectH; | |
| 443 dataLen = pixArray + u8Array; | |
| 444 printFramebufferUpdate(); | |
| 130 | 445 // is.mark(dataLen); |
| 27 | 446 break; |
| 23 | 447 default: |
| 61 | 448 dataLen = 1000000; |
| 130 | 449 // is.mark(dataLen); |
| 54 | 450 } |
| 61 | 451 return dataLen; |
| 452 } | |
| 65 | 453 |
| 454 | |
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455 void sendDataToClient() throws Exception { |
| 61 | 456 regiFramebufferUpdate(); |
| 153 | 457 // printFramebufferUpdate(); |
| 61 | 458 int dataLen = checkAndMark(); |
| 459 readSendData(dataLen); | |
| 23 | 460 } |
| 54 | 461 |
| 462 BufferedImage createBufferedImage(Image img) { | |
| 463 BufferedImage bimg = new BufferedImage(img.getWidth(null), | |
| 464 img.getHeight(null), BufferedImage.TYPE_INT_RGB); | |
| 27 | 465 |
| 25 | 466 Graphics g = bimg.getGraphics(); |
| 467 g.drawImage(img, 0, 0, null); | |
| 468 g.dispose(); | |
| 469 return bimg; | |
| 470 } | |
| 471 | |
| 54 | 472 void createPngBytes(BufferedImage bimg) throws IOException { |
| 473 pngBytes = getImageBytes(bimg, "png"); | |
| 25 | 474 } |
| 54 | 475 |
| 476 byte[] getBytes(BufferedImage img) throws IOException { | |
| 25 | 477 byte[] b = getImageBytes(img, "png"); |
| 478 return b; | |
| 479 } | |
| 54 | 480 |
| 481 byte[] getImageBytes(BufferedImage image, String imageFormat) | |
| 482 throws IOException { | |
| 25 | 483 ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| 484 BufferedOutputStream os = new BufferedOutputStream(bos); | |
| 485 image.flush(); | |
| 486 ImageIO.write(image, imageFormat, os); | |
| 487 os.flush(); | |
| 488 os.close(); | |
| 489 return bos.toByteArray(); | |
| 490 } | |
| 491 | |
| 54 | 492 void sendPngData(Socket sock) throws IOException { |
| 26 | 493 byte[] dataLength = castIntByte(pngBytes.length); |
| 494 sock.getOutputStream().write(dataLength); | |
| 25 | 495 sock.getOutputStream().write(pngBytes); |
| 496 } | |
| 54 | 497 |
| 498 byte[] castIntByte(int len) { | |
| 26 | 499 byte[] b = new byte[4]; |
| 54 | 500 b[0] = (byte) ((len >>> 24) & 0xFF); |
| 501 b[1] = (byte) ((len >>> 16) & 0xFF); | |
| 502 b[2] = (byte) ((len >>> 8) & 0xFF); | |
| 503 b[3] = (byte) ((len >>> 0) & 0xFF); | |
| 26 | 504 return b; |
| 505 } | |
| 54 | 506 |
| 507 BufferedImage createBimg() throws IOException { | |
| 25 | 508 BufferedImage bimg = ImageIO.read(new ByteArrayInputStream(pngBytes)); |
| 509 return bimg; | |
| 510 } | |
| 104 | 511 |
| 54 | 512 void printFramebufferUpdate() { |
| 513 | |
| 18 | 514 System.out.println("messageType=" + messageType); |
| 54 | 515 System.out.println("rectangles=" + rectangles); |
| 18 | 516 System.out.println("encoding=" + encoding); |
| 78 | 517 System.out.println("rectX = "+rectX+": rectY = "+rectY); |
| 518 System.out.println("rectW = "+rectW+": rectH = "+rectH); | |
| 54 | 519 switch (encoding) { |
| 23 | 520 case RfbProto.EncodingRaw: |
| 54 | 521 System.out.println("rectW * rectH * 4 + 16 =" + rectW * rectH * 4 |
| 522 + 16); | |
| 23 | 523 break; |
| 524 default: | |
| 525 } | |
| 18 | 526 } |
| 130 | 527 int returnMsgtype() { |
| 528 return messageType; | |
| 529 } | |
| 530 | |
| 65 | 531 |
| 77 | 532 void readSpeedCheck() throws IOException { |
| 533 byte[] b = new byte[1]; | |
| 65 | 534 readFully(b); |
| 535 } | |
| 536 | |
| 77 | 537 void startSpeedCheck() { |
| 90 | 538 ByteBuffer b = ByteBuffer.allocate(10); |
| 539 b.put((byte)SpeedCheckMillis); | |
| 540 b.flip(); | |
| 66 | 541 startCheckTime = System.currentTimeMillis(); |
| 542 System.out.println("startChckTime = "+ startCheckTime); | |
| 90 | 543 LinkedList<ByteBuffer>bufs = new LinkedList<ByteBuffer>(); |
| 84 | 544 bufs.add(b); |
| 545 multicastqueue.put(bufs); | |
| 65 | 546 } |
| 547 | |
| 77 | 548 void endSpeedCheck() { |
| 65 | 549 long accTime = System.currentTimeMillis(); |
| 550 long time = accTime - startCheckTime; | |
| 551 System.out.println("checkMillis: " + time); | |
| 552 } | |
| 553 | |
| 554 | |
| 555 synchronized void changeStatusFlag() { | |
| 556 printStatusFlag = true; | |
| 557 } | |
| 558 | |
| 559 void printMills() { | |
| 560 if(printStatusFlag) { | |
| 561 | |
| 562 changeStatusFlag(); | |
| 563 } else { | |
| 564 changeStatusFlag(); | |
| 565 } | |
| 566 } | |
| 87 | 567 |
| 568 void speedCheckMillis() { | |
| 569 Runnable stdin = new Runnable() { | |
| 570 public void run() { | |
| 571 int c; | |
| 572 try { | |
| 573 while( (c = System.in.read()) != -1 ) { | |
| 574 switch(c) { | |
| 575 case 's': | |
| 576 break; | |
| 577 default: | |
| 578 startSpeedCheck(); | |
| 579 break; | |
| 580 } | |
| 581 } | |
| 582 }catch(IOException e){ | |
| 583 System.out.println(e); | |
| 584 } | |
| 585 } | |
| 586 }; | |
| 587 | |
| 588 new Thread(stdin).start(); | |
| 589 } | |
| 162 | 590 |
| 591 void requestThreadStart() { | |
| 592 requestThread.start(); | |
| 593 } | |
| 594 | |
| 595 public synchronized void requestThreadNotify() { | |
| 596 rThread.reStart(); | |
| 597 } | |
| 598 | |
| 86 | 599 |
| 87 | 600 /** |
| 601 * gzip byte arrays | |
| 602 * @param deflater | |
| 603 * @param inputs | |
| 604 * byte data[] | |
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605 * @param inputIndex |
| 87 | 606 * @param outputs |
| 607 * byte data[] | |
| 608 * @return byte length in last byte array | |
| 609 * @throws IOException | |
| 610 */ | |
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611 public int zip(Deflater deflater,LinkedList<ByteBuffer> inputs, int inputIndex, LinkedList<ByteBuffer> outputs) throws IOException { |
| 102 | 612 int len = 0; |
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613 ByteBuffer c1= ByteBuffer.allocate(INFLATE_BUFSIZE); |
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614 while(inputIndex < inputs.size() ) { |
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615 ByteBuffer b1 = inputs.get(inputIndex++); |
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616 deflater.setInput(b1.array(),b1.position(),b1.remaining()); |
| 106 | 617 /** |
| 618 * If we finish() stream and reset() it, Deflater start new gzip stream, this makes continuous zlib reader unhappy. | |
| 619 * if we remove finish(), Deflater.deflate() never flushes its output. The original zlib deflate has flush flag. I'm pretty | |
| 620 * sure this a kind of bug of Java library. | |
| 621 */ | |
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622 if (inputIndex==inputs.size()) |
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623 deflater.finish(); |
| 106 | 624 int len1 = 0; |
| 86 | 625 do { |
| 106 | 626 len1 = deflater.deflate(c1.array(),c1.position(),c1.remaining()); |
| 102 | 627 if (len1>0) { |
| 628 len += len1; | |
| 629 c1.position(c1.position()+len1); | |
| 630 if (c1.remaining()==0) { | |
| 631 c1.flip(); outputs.addLast(c1); | |
| 632 c1 = ByteBuffer.allocate(INFLATE_BUFSIZE); | |
| 633 } | |
| 86 | 634 } |
| 106 | 635 } while (len1 >0 || !deflater.needsInput()); // &&!deflater.finished()); |
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636 } |
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637 if (c1.position()!=0) { |
| 102 | 638 c1.flip(); outputs.addLast(c1); |
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639 } |
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640 deflater.reset(); |
| 90 | 641 return len; |
| 86 | 642 } |
| 87 | 643 |
| 644 /** | |
| 645 * gunzip byte arrays | |
| 646 * @param inflater | |
| 647 * @param inputs | |
| 648 * byte data[] | |
| 649 * @param outputs | |
| 650 * byte data[] | |
| 91 | 651 *@return number of total bytes |
| 87 | 652 * @throws IOException |
| 653 */ | |
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654 public int unzip(Inflater inflater, LinkedList<ByteBuffer> inputs, int inputIndex, LinkedList<ByteBuffer> outputs,int bufSize) |
| 88 | 655 throws DataFormatException { |
| 102 | 656 int len=0; |
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657 ByteBuffer buf = ByteBuffer.allocate(bufSize); |
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658 while (inputIndex < inputs.size()) { |
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659 ByteBuffer input = inputs.get(inputIndex++); |
| 102 | 660 inflater.setInput(input.array(),input.position(),input.limit()); |
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661 // if (inputIndex==inputs.size()) if inflater/deflater has symmetry, we need this |
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662 // inflater.end(); but this won't work |
| 88 | 663 do { |
| 102 | 664 int len0 = inflater.inflate(buf.array(),buf.position(),buf.remaining()); |
| 665 if (len0>0) { | |
| 666 buf.position(buf.position()+len0); | |
| 667 len += len0; | |
| 668 if (buf.remaining()==0) { | |
| 669 buf.flip(); | |
| 670 outputs.addLast(buf); | |
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671 buf = ByteBuffer.allocate(bufSize); |
| 102 | 672 } |
| 91 | 673 } |
| 102 | 674 } while (!inflater.needsInput()); |
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675 } |
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676 if (buf.position()!=0) { |
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677 buf.flip(); |
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678 outputs.addLast(buf); |
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679 } |
| 90 | 680 return len; |
| 86 | 681 } |
| 156 | 682 |
| 65 | 683 |
| 156 | 684 float maxMag = 1; |
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685 /** |
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686 * send data to clients |
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687 * @param dataLen |
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688 * @throws IOException |
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689 * @throws DataFormatException |
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690 * |
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691 * Zlibed packet is compressed in context dependent way, that is, it have to send from the beginning. But this is |
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692 * impossible. So we have to compress it again for each clients. Separate deflater for each clients is necessary. |
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693 * |
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694 * Java's deflater does not support flush. This means to get the result, we have to finish the compression. Reseting |
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695 * start new compression, but it is not accepted well in zlib continuous reading. So we need new Encoding ZRLEE |
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696 * 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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697 * ZRLEE compression is not context dependent, so no recompression is necessary. |
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698 */ |
| 86 | 699 void readSendData(int dataLen) throws IOException, DataFormatException { |
| 90 | 700 LinkedList<ByteBuffer>bufs = new LinkedList<ByteBuffer>(); |
| 701 ByteBuffer header = ByteBuffer.allocate(16); | |
| 702 readFully(header.array(),0,16); | |
| 703 header.limit(16); | |
| 704 if (header.get(0)==RfbProto.FramebufferUpdate) { | |
| 705 int encoding = header.getInt(12); | |
| 107 | 706 if (encoding==RfbProto.EncodingZRLE||encoding==RfbProto.EncodingZlib) { // ZRLEE is already recompressed |
| 90 | 707 ByteBuffer len = ByteBuffer.allocate(4); |
| 708 readFully(len.array(),0,4); len.limit(4); | |
| 709 ByteBuffer inputData = ByteBuffer.allocate(dataLen-20); | |
| 151 | 710 |
| 711 startTiming(); | |
| 90 | 712 readFully(inputData.array(),0,inputData.capacity()); inputData.limit(dataLen-20); |
| 151 | 713 stopTiming(); |
| 714 | |
| 90 | 715 LinkedList<ByteBuffer>inputs = new LinkedList<ByteBuffer>(); |
| 88 | 716 inputs.add(inputData); |
| 107 | 717 |
| 718 header.putInt(12, RfbProto.EncodingZRLEE); // means recompress every time | |
| 719 // using new Deflecter every time is incompatible with the protocol, clients have to be modified. | |
| 720 Deflater nDeflater = deflater; // new Deflater(); | |
| 721 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); | |
| 722 unzip(inflater, inputs, 0 , out, INFLATE_BUFSIZE); | |
| 723 // dump32(inputs); | |
| 724 int len2 = zip(nDeflater, out, 0, bufs); | |
| 725 ByteBuffer blen = ByteBuffer.allocate(4); blen.putInt(len2); blen.flip(); | |
| 726 bufs.addFirst(blen); | |
| 727 | |
| 87 | 728 bufs.addFirst(header); |
| 86 | 729 multicastqueue.put(bufs); |
| 156 | 730 // is.reset(); |
| 130 | 731 |
| 156 | 732 /* |
| 733 System.out.println("ZRLE = "+dataLen); | |
| 734 System.out.println("ZRLEE = "+(len2+20)); | |
| 735 float mag = (float)dataLen / (float)(len2 + 20); | |
| 736 System.out.println("ZRLE / ZRLEE = "+ mag); | |
| 737 if(mag > maxMag) maxMag = mag; | |
| 738 System.out.println("maxMag = "+maxMag); | |
| 739 */ | |
| 86 | 740 return ; |
| 741 } | |
| 87 | 742 bufs.add(header); |
| 743 if (dataLen>16) { | |
| 90 | 744 ByteBuffer b = ByteBuffer.allocate(dataLen-16); |
| 156 | 745 startTiming(); |
| 90 | 746 readFully(b.array(),0,dataLen-16); b.limit(dataLen-16); |
| 156 | 747 stopTiming(); |
| 87 | 748 bufs.add(b); |
| 749 } | |
| 86 | 750 multicastqueue.put(bufs); |
| 135 | 751 // is.reset(); |
| 752 return ; | |
| 130 | 753 } |
| 754 is.reset(); | |
| 86 | 755 |
| 756 // It may be compressed. We can inflate here to avoid repeating clients decompressing here, | |
| 757 // but it may generate too many large data. It is better to do it in each client. | |
| 758 // But we have do inflation for all input data, so we have to do it here. | |
| 759 } | |
| 43 | 760 |
| 71 | 761 void newClient(AcceptThread acceptThread, final Socket newCli, |
| 54 | 762 final OutputStream os, final InputStream is) throws IOException { |
| 763 // createBimgFlag = true; | |
| 764 // rfb.addSockTmp(newCli); | |
| 765 // addSock(newCli); | |
| 112 | 766 final int myId = clients; |
| 90 | 767 final Client <LinkedList<ByteBuffer>> c = multicastqueue.newClient(); |
|
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768 final AtomicInteger writerRunning = new AtomicInteger(); |
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769 writerRunning.set(1); |
| 112 | 770 /** |
| 771 * Timeout thread. If a client is suspended, it has top of queue indefinitely, which caused memory | |
| 772 * overflow. After the timeout, we poll the queue and discard it. Start long wait if writer is running. | |
| 773 */ | |
|
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774 final Runnable timer = new Runnable() { |
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775 public void run() { |
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776 int count = 0; |
|
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777 for(;;) { |
| 114 | 778 long timeout = 30000/8; |
|
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779 try { |
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780 synchronized(this) { |
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781 int state,flag; |
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782 writerRunning.set(0); |
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783 wait(timeout); |
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784 flag = 0; |
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785 while((state=writerRunning.get())==0) { |
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786 c.poll(); // discard, should be timeout |
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787 count++; |
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788 if (flag==0) { |
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789 System.out.println("Discarding "+myId + " count="+ count); flag = 1; |
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790 } |
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791 wait(10); // if this is too short, writer cannot take the poll, if this is too long, memory will overflow... |
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792 } |
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793 if (flag==1) System.out.println("Resuming "+myId + " count="+count); |
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794 if (state!=1) { |
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795 System.out.println("Client died "+myId); |
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796 break; |
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797 } |
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798 } |
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799 } catch (InterruptedException e) { |
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800 } |
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801 } |
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802 } |
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803 }; |
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804 new Thread(timer).start(); |
| 112 | 805 /** |
| 806 * discard all incoming from clients | |
| 807 */ | |
| 102 | 808 final Runnable reader = new Runnable() { |
| 809 public void run() { | |
| 810 byte b[] = new byte[4096]; | |
| 811 for(;;) { | |
| 812 try { | |
| 813 int c = is.read(b); | |
| 814 if (c<=0) throw new IOException(); | |
|
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815 // System.out.println("client read "+c); |
| 102 | 816 } catch (IOException e) { |
| 817 try { | |
|
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818 writerRunning.set(2); |
| 102 | 819 os.close(); |
| 820 is.close(); | |
| 821 } catch (IOException e1) { | |
| 822 } | |
| 823 return; | |
| 824 } | |
| 825 } | |
| 826 } | |
| 827 }; | |
| 112 | 828 /** |
| 829 * send packets to a client | |
| 830 */ | |
| 54 | 831 Runnable sender = new Runnable() { |
| 832 public void run() { | |
|
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833 writerRunning.set(1); |
| 54 | 834 try { |
|
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835 requestThreadNotify(); |
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836 |
| 65 | 837 /** |
| 838 * initial connection of RFB protocol | |
| 839 */ | |
| 54 | 840 sendRfbVersion(os); |
| 131 | 841 // readVersionMsg(is); |
| 155 | 842 int rfbMinor = readVersionMsg(is,os); |
| 54 | 843 sendSecurityType(os); |
| 844 readSecType(is); | |
| 845 sendSecResult(os); | |
| 846 readClientInit(is); | |
| 847 sendInitData(os); | |
| 112 | 848 new Thread(reader).start(); // discard incoming packet here after. |
| 162 | 849 // writeFramebufferUpdateRequest(0,0, framebufferWidth, framebufferHeight, false ); |
| 54 | 850 for (;;) { |
| 90 | 851 LinkedList<ByteBuffer> bufs = c.poll(); |
|
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852 int inputIndex = 0; |
|
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853 ByteBuffer header = bufs.get(inputIndex); |
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854 if (header==null) continue; |
| 90 | 855 if (header.get(0)==RfbProto.FramebufferUpdate) { |
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856 // System.out.println("client "+ myId); |
| 87 | 857 } |
|
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858 writeToClient(os, bufs, inputIndex); |
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859 writerRunning.set(1); // yes my client is awaking. |
| 54 | 860 } |
| 861 } catch (IOException e) { | |
|
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862 try { |
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863 writerRunning.set(2); |
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864 os.close(); |
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865 } catch (IOException e1) { |
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866 } |
| 87 | 867 /* if socket closed cliList.remove(newCli); */ |
| 54 | 868 } |
| 869 } | |
|
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870 |
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871 public void writeToClient(final OutputStream os, |
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872 LinkedList<ByteBuffer> bufs, int inputIndex) |
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873 throws IOException { |
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874 while(inputIndex < bufs.size()) { |
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875 ByteBuffer b = bufs.get(inputIndex++); |
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876 os.write(b.array(), b.position(), b.limit()); |
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877 } |
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878 os.flush(); |
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879 } |
| 54 | 880 }; |
| 80 | 881 clients++; |
| 54 | 882 new Thread(sender).start(); |
| 883 | |
| 884 } | |
| 66 | 885 |
| 886 | |
|
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887 public void dump32(LinkedList<ByteBuffer>bufs) { |
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888 int len =0; |
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889 for(ByteBuffer b: bufs) len += b.remaining(); |
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890 ByteBuffer top = bufs.getFirst(); |
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891 ByteBuffer end = bufs.getLast(); |
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892 System.err.println("length: "+len); |
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893 System.err.print("head 0: "); |
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894 for(int i = 0; i<16 && i < top.remaining(); i++) { |
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895 System.err.print(" "+ top.get(i)); |
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896 } |
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897 System.err.print("tail 0: "); |
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898 for(int i = 0; i<16 && i < end.remaining(); i++) { |
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899 System.err.print(" "+end.get(i)); |
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900 } |
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901 System.err.println(); |
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902 } |
| 88 | 903 |
| 904 @Test | |
| 905 public void test1() { | |
| 906 try { | |
| 90 | 907 LinkedList<ByteBuffer> in = new LinkedList<ByteBuffer>(); |
| 908 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); | |
| 909 LinkedList<ByteBuffer> out2 = new LinkedList<ByteBuffer>(); | |
| 107 | 910 // if (false) { |
| 911 // for(int i=0;i<10;i++) { | |
| 912 // in.add(ByteBuffer.wrap("test1".getBytes())); | |
| 913 // in.add(ByteBuffer.wrap("test2".getBytes())); | |
| 914 // in.add(ByteBuffer.wrap("test3".getBytes())); | |
| 915 // in.add(ByteBuffer.wrap("test44".getBytes())); | |
| 916 // } | |
| 917 // } else | |
| 918 { | |
| 106 | 919 String t = ""; |
| 920 for(int i=0;i<10;i++) { | |
| 921 t += "test1"; | |
| 922 t += "test2"; | |
| 923 t += "test3"; | |
| 924 t += "test44"; | |
| 925 } | |
| 926 in.add(ByteBuffer.wrap(t.getBytes())); | |
| 927 } | |
| 928 | |
| 92 | 929 LinkedList<ByteBuffer> in1 = clone(in); |
| 90 | 930 |
| 88 | 931 Deflater deflater = new Deflater(); |
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932 zip(deflater,in,0,out); |
| 92 | 933 // LinkedList<ByteBuffer> out3 = clone(out); zipped result is depend on deflator's state |
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934 unzip(inflater, out, 0,out2, INFLATE_BUFSIZE); |
| 106 | 935 // inflater.reset(); |
| 92 | 936 equalByteBuffers(in1, out2); |
| 937 LinkedList<ByteBuffer> out4 = new LinkedList<ByteBuffer>(); | |
| 104 | 938 deflater = new Deflater(); |
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939 zip(deflater,out2,0,out4); |
| 92 | 940 LinkedList<ByteBuffer> out5 = new LinkedList<ByteBuffer>(); |
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941 unzip(inflater,out4,0, out5, INFLATE_BUFSIZE); |
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942 int len = equalByteBuffers(in1,out5); |
| 92 | 943 |
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944 System.out.println("Test Ok. "+len); |
| 88 | 945 } catch (Exception e) { |
| 946 assertEquals(0,1); | |
| 947 } | |
| 948 } | |
| 949 | |
| 92 | 950 private LinkedList<ByteBuffer> clone(LinkedList<ByteBuffer> in) { |
| 951 LinkedList<ByteBuffer> copy = new LinkedList<ByteBuffer>(); | |
| 952 for(ByteBuffer b: in) { | |
| 953 ByteBuffer c = b.duplicate(); | |
| 954 copy.add(c); | |
| 955 } | |
| 956 return copy; | |
| 957 } | |
| 958 | |
| 93 | 959 |
| 960 | |
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961 public int equalByteBuffers(LinkedList<ByteBuffer> in, |
| 92 | 962 LinkedList<ByteBuffer> out2) { |
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963 int len = 0; |
| 93 | 964 Iterable<Byte> i = byteBufferIterator(in); |
| 965 Iterator<Byte> o = byteBufferIterator(out2).iterator(); | |
| 966 | |
| 967 for(int b: i) { | |
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968 len ++; |
| 93 | 969 if (o.hasNext()) { |
| 970 int c = o.next(); | |
| 971 assertEquals(b,c); | |
| 972 } else | |
| 973 assertEquals(0,1); | |
| 974 } | |
| 104 | 975 if (o.hasNext()) |
| 976 assertEquals(0,1); | |
| 93 | 977 // System.out.println(); |
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978 return len; |
| 93 | 979 } |
| 980 | |
| 981 private Iterable<Byte> byteBufferIterator(final LinkedList<ByteBuffer> in) { | |
| 982 return new Iterable<Byte>() { | |
| 983 public Iterator<Byte> iterator() { | |
| 984 return new Iterator<Byte>() { | |
| 985 int bytes = 0; | |
| 986 int buffers = 0; | |
| 987 public boolean hasNext() { | |
| 104 | 988 for(;;) { |
| 989 if (buffers>=in.size()) return false; | |
| 990 ByteBuffer b = in.get(buffers); | |
| 991 if (! (bytes<b.remaining())) { | |
| 992 buffers ++; bytes=0; | |
| 993 } else return true; | |
| 994 } | |
| 92 | 995 } |
| 93 | 996 public Byte next() { |
| 104 | 997 ByteBuffer bf =in.get(buffers); |
| 93 | 998 byte b = bf.get(bytes++); |
| 999 if (bf.remaining()<=bytes) { | |
| 1000 buffers++; | |
| 1001 bytes = 0; | |
| 1002 } | |
| 1003 // System.out.print(b); | |
| 1004 return b; | |
| 1005 } | |
| 1006 public void remove() { | |
| 1007 } | |
| 1008 }; | |
| 92 | 1009 } |
| 93 | 1010 }; |
| 92 | 1011 } |
| 1012 | |
| 54 | 1013 } |
| 66 | 1014 |
| 1015 |