Mercurial > hg > Applications > TreeVNC
annotate src/main/java/jp/ac/u_ryukyu/treevnc/MyRfbProto.java @ 59:433c79184c05
merge version2.7.2
| author | Taninari YU <you@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 17 Dec 2013 20:16:48 +0900 |
| parents | 9fdb8ff88497 |
| children | ac6f9e46566f |
| rev | line source |
|---|---|
| 32 | 1 package jp.ac.u_ryukyu.treevnc; |
| 28 | 2 |
| 45 | 3 import java.io.DataOutputStream; |
| 28 | 4 import java.io.IOException; |
| 5 import java.net.Socket; | |
| 6 import java.nio.ByteBuffer; | |
| 7 import java.util.LinkedList; | |
| 8 import java.util.concurrent.atomic.AtomicInteger; | |
| 9 | |
| 35 | 10 import jp.ac.u_ryukyu.treevnc.client.EchoClient; |
| 28 | 11 import jp.ac.u_ryukyu.treevnc.server.RequestScreenThread; |
| 12 | |
| 13 import com.glavsoft.exceptions.TransportException; | |
| 14 import com.glavsoft.rfb.protocol.Protocol; | |
| 15 import com.glavsoft.rfb.protocol.ProtocolContext; | |
| 16 import com.glavsoft.transport.Reader; | |
| 17 import com.glavsoft.transport.Writer; | |
| 36 | 18 import com.glavsoft.viewer.Viewer; |
| 28 | 19 |
| 20 public class MyRfbProto { | |
|
33
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
21 final static int FramebufferUpdateRequest = 3; |
| 28 | 22 final static int CheckDelay = 11; |
| 23 final static int FramebufferUpdate = 0; | |
| 24 private ProtocolContext context; | |
| 54 | 25 //final static String versionMsg_3_855 = "RFB 003.855\n"; |
| 26 final static String versionMsg_3_856 = "RFB 003.856\n"; | |
| 28 | 27 private int clients; |
| 32 | 28 protected MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MulticastQueue<LinkedList<ByteBuffer>>(); |
| 28 | 29 private RequestScreenThread rThread; |
| 30 private boolean proxyFlag = true; | |
| 35 | 31 private EchoClient echo; |
| 45 | 32 private String proxyAddr; |
|
33
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
33 |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
34 public MyRfbProto() { |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
35 rThread = new RequestScreenThread(this); |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
36 } |
| 28 | 37 |
| 38 | |
| 39 public void newClient(AcceptThread acceptThread, final Socket newCli, | |
| 40 final Writer os, final Reader is) throws IOException { | |
| 41 // createBimgFlag = true; | |
| 42 // rfb.addSockTmp(newCli); | |
| 43 // addSock(newCli); | |
| 44 final int myId = clients; | |
| 45 final MulticastQueue.Client<LinkedList<ByteBuffer>> c = multicastqueue.newClient(); | |
| 46 final AtomicInteger writerRunning = new AtomicInteger(); | |
| 47 writerRunning.set(1); | |
| 48 /** | |
| 49 * Timeout thread. If a client is suspended, it has top of queue | |
| 50 * indefinitely, which caused memory overflow. After the timeout, we | |
| 51 * poll the queue and discard it. Start long wait if writer is running. | |
| 52 */ | |
| 53 final Runnable timer = new Runnable() { | |
| 54 public void run() { | |
| 55 int count = 0; | |
| 56 for (;;) { | |
| 57 long timeout = 50000 / 8; | |
| 58 try { | |
| 59 synchronized (this) { | |
| 60 int state, flag; | |
| 61 writerRunning.set(0); | |
| 62 wait(timeout); | |
| 63 flag = 0; | |
| 64 while ((state = writerRunning.get()) == 0) { | |
| 65 c.poll(); // discard, should be timeout | |
| 66 count++; | |
| 67 if (flag == 0) { | |
| 68 System.out.println("Discarding " + myId | |
| 69 + " count=" + count); | |
| 70 flag = 1; | |
| 71 } | |
| 72 wait(10); // if this is too short, writer cannot | |
| 73 // take the poll, if this is too | |
| 74 // long, memory will overflow... | |
| 75 } | |
| 76 if (flag == 1) | |
| 77 System.out.println("Resuming " + myId | |
| 78 + " count=" + count); | |
| 79 if (state != 1) { | |
| 80 System.out.println("Client died " + myId); | |
| 81 break; | |
| 82 } | |
| 83 } | |
| 84 } catch (InterruptedException e) { | |
| 85 } | |
| 86 } | |
| 87 } | |
| 88 }; | |
| 89 new Thread(timer).start(); | |
| 90 /** | |
| 91 * discard all incoming from clients | |
| 92 */ | |
| 93 final Runnable reader = new Runnable() { | |
| 94 public void run() { | |
| 95 byte b[] = new byte[4096]; | |
| 96 for (;;) { | |
| 97 try { | |
| 98 int c = is.readByte(b); | |
| 99 if (c <= 0) | |
| 100 throw new IOException(); | |
| 101 // System.out.println("client read "+c); | |
| 102 } catch (IOException e) { | |
| 103 try { | |
| 104 writerRunning.set(2); | |
| 105 os.close(); | |
| 106 is.close(); | |
| 36 | 107 break; |
| 28 | 108 } catch (IOException e1) { |
| 109 } catch (TransportException e1) { | |
| 110 e1.printStackTrace(); | |
| 111 } | |
| 112 return; | |
| 113 } catch (TransportException e) { | |
| 114 e.printStackTrace(); | |
| 115 } | |
| 116 } | |
| 117 } | |
| 118 }; | |
| 119 /** | |
| 120 * send packets to a client | |
| 121 */ | |
| 122 Runnable sender = new Runnable() { | |
| 123 public void run() { | |
| 124 writerRunning.set(1); | |
| 125 try { | |
| 126 requestThreadNotify(); | |
| 127 // rThread.checkDelay(); | |
| 128 | |
| 129 /** | |
| 130 * initial connection of RFB protocol | |
| 131 */ | |
| 132 sendRfbVersion(os); | |
| 133 // readVersionMsg(is); | |
| 134 readVersionMsg(is, os); | |
| 135 sendSecurityType(os); | |
| 136 readSecType(is); | |
| 137 sendSecResult(os); | |
| 138 readClientInit(is); | |
| 139 sendInitData(os); | |
| 140 new Thread(reader).start(); // discard incoming packet here | |
| 141 // after. | |
| 142 // writeFramebufferUpdateRequest(0,0, framebufferWidth, | |
| 143 // framebufferHeight, false ); | |
| 144 for (;;) { | |
| 145 LinkedList<ByteBuffer> bufs = c.poll(); | |
| 146 int inputIndex = 0; | |
| 147 ByteBuffer header = bufs.get(inputIndex); | |
| 148 if (header == null) | |
| 149 continue; | |
| 150 else if (header.get(0) == CheckDelay) { | |
| 151 writeToClient(os, bufs, inputIndex); | |
| 152 continue; | |
| 153 } else if (header.get(0) == FramebufferUpdate) { | |
| 154 // System.out.println("client "+ myId); | |
| 155 } | |
| 156 /* | |
| 157 * if(i%20==0){ sendDataCheckDelay(); } i++; | |
| 158 */ | |
| 159 writeToClient(os, bufs, inputIndex); | |
| 160 writerRunning.set(1); // yes my client is awaking. | |
| 161 } | |
| 162 } catch (IOException e) { | |
| 163 try { | |
| 164 writerRunning.set(2); | |
| 165 os.close(); | |
| 166 } catch (IOException e1) { | |
| 167 } | |
| 168 /* if socket closed cliList.remove(newCli); */ | |
| 169 } catch (TransportException e) { | |
| 170 e.printStackTrace(); | |
| 171 } | |
| 172 } | |
| 173 | |
| 174 public void writeToClient(final Writer os, | |
| 175 LinkedList<ByteBuffer> bufs, int inputIndex) | |
| 176 throws TransportException { | |
| 177 while (inputIndex < bufs.size()) { | |
| 178 ByteBuffer b = bufs.get(inputIndex++); | |
| 179 os.write(b.array(), b.position(), b.limit()); | |
| 180 } | |
| 181 os.flush(); | |
| 182 } | |
| 183 }; | |
| 184 clients++; | |
| 185 new Thread(sender).start(); | |
| 186 | |
| 187 } | |
| 188 | |
| 189 public synchronized void requestThreadNotify() { | |
| 190 rThread.reStart(); | |
| 191 } | |
| 192 | |
| 193 private void sendRfbVersion(Writer writer) throws IOException, TransportException { | |
| 194 // os.write(versionMsg_3_8.getBytes()); | |
| 54 | 195 writer.write(versionMsg_3_856.getBytes()); |
| 28 | 196 } |
| 197 | |
| 198 private int readVersionMsg(Reader reader, Writer writer) throws IOException, TransportException { | |
| 199 | |
| 200 byte[] b = new byte[12]; | |
| 201 | |
| 202 reader.readBytes(b); | |
| 203 | |
| 204 if ((b[0] != 'R') || (b[1] != 'F') || (b[2] != 'B') || (b[3] != ' ') | |
| 205 || (b[4] < '0') || (b[4] > '9') || (b[5] < '0') || (b[5] > '9') | |
| 206 || (b[6] < '0') || (b[6] > '9') || (b[7] != '.') | |
| 207 || (b[8] < '0') || (b[8] > '9') || (b[9] < '0') || (b[9] > '9') | |
| 208 || (b[10] < '0') || (b[10] > '9') || (b[11] != '\n')) { | |
| 209 throw new IOException("this is not an RFB server"); | |
| 210 } | |
| 211 | |
| 212 int rfbMajor = (b[4] - '0') * 100 + (b[5] - '0') * 10 + (b[6] - '0'); | |
| 213 int rfbMinor = (b[8] - '0') * 100 + (b[9] - '0') * 10 + (b[10] - '0'); | |
| 214 | |
| 215 if (rfbMajor < 3) { | |
| 216 throw new IOException( | |
| 217 "RFB server does not support protocol version 3"); | |
| 218 } | |
| 219 | |
| 220 if (rfbMinor == 855) { | |
| 221 sendProxyFlag(writer); | |
| 222 if (proxyFlag) | |
| 223 sendPortNumber(writer); | |
| 224 } | |
| 225 return rfbMinor; | |
| 226 } | |
| 45 | 227 |
| 228 public void screenChangeRequest() throws IOException { | |
| 229 Socket echoSocket; | |
| 230 echoSocket = new Socket(proxyAddr, 10001); | |
| 231 DataOutputStream os = new DataOutputStream(echoSocket.getOutputStream()); | |
| 232 os.writeBytes(echo.getMyAddress()+"\n"); | |
| 59 | 233 //os.writeBytes(String.valueOf(echo.client.getFrameWidth())+"\n"); temp comment out for rebuild |
| 234 //os.writeBytes(String.valueOf(echo.client.getFrameHeight())+"\n"); temp comment out for rebuild | |
| 45 | 235 System.out.println("---------push-------"); |
| 236 // os.writeBytes("1240\n"); | |
| 237 // os.writeBytes("880\n"); | |
| 238 os.close(); | |
| 239 } | |
| 28 | 240 |
| 241 private void sendProxyFlag(Writer writer) throws TransportException { | |
| 242 if (proxyFlag) | |
| 243 writer.writeInt(1); | |
| 244 else | |
| 245 writer.writeInt(0); | |
| 246 } | |
| 247 | |
| 248 private void sendPortNumber(Writer writer) throws TransportException { | |
| 249 byte[] b = new byte[4]; | |
| 250 //b = castIntByte(getHost.getPort()); | |
| 251 b = castIntByte(9999); | |
| 252 writer.write(b); | |
| 253 } | |
| 254 | |
| 255 private byte[] castIntByte(int len) { | |
| 256 byte[] b = new byte[4]; | |
| 257 b[0] = (byte) ((len >>> 24) & 0xFF); | |
| 258 b[1] = (byte) ((len >>> 16) & 0xFF); | |
| 259 b[2] = (byte) ((len >>> 8) & 0xFF); | |
| 260 b[3] = (byte) ((len >>> 0) & 0xFF); | |
| 261 return b; | |
| 262 } | |
| 263 | |
| 45 | 264 |
| 28 | 265 private void readSecType(Reader reader) throws TransportException { |
| 266 byte[] b = new byte[1]; | |
| 267 reader.read(b); | |
| 268 } | |
| 269 | |
| 270 private void sendSecurityType(Writer os) throws TransportException { | |
| 271 // number-of-security-types | |
| 272 os.writeInt(1); | |
| 273 // security-types | |
| 274 // 1:None | |
| 275 os.writeInt(1); | |
| 276 | |
| 277 /* | |
| 278 * os.write(4); os.write(30); os.write(31); os.write(32); os.write(35); | |
| 279 * os.flush(); | |
| 280 */ | |
| 281 } | |
| 282 | |
| 283 private void sendSecResult(Writer os) throws TransportException { | |
| 284 byte[] b = castIntByte(0); | |
| 285 os.write(b); | |
| 286 } | |
| 287 | |
| 288 private void readClientInit(Reader in) throws TransportException { | |
| 289 byte[] b = new byte[0]; | |
| 290 in.readBytes(b); | |
| 291 } | |
| 292 | |
| 293 private void sendInitData(Writer os) throws TransportException { | |
| 294 os.write(context.getInitData()); | |
| 295 } | |
| 296 | |
| 297 public void setProtocolContext(Protocol workingProtocol) { | |
| 298 context = workingProtocol; | |
| 299 } | |
| 29 | 300 |
| 301 | |
| 302 public void readSendData(int dataLen, Reader reader) throws TransportException { | |
| 303 | |
| 304 } | |
| 31 | 305 |
| 306 public Socket accept() throws IOException { | |
| 307 return null; | |
| 308 } | |
| 309 | |
| 38 | 310 public int selectPort(int port) { |
| 311 return port; | |
| 31 | 312 } |
|
33
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
313 |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
314 |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
315 public void writeFramebufferUpdateRequest(int x, int y, int w, int h, |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
316 boolean incremental) throws TransportException { |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
317 byte[] b = new byte[10]; |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
318 |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
319 b[0] = (byte) FramebufferUpdateRequest; // 3 is FrameBufferUpdateRequest |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
320 b[1] = (byte) (incremental ? 1 : 0); |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
321 b[2] = (byte) ((x >> 8) & 0xff); |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
322 b[3] = (byte) (x & 0xff); |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
323 b[4] = (byte) ((y >> 8) & 0xff); |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
324 b[5] = (byte) (y & 0xff); |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
325 b[6] = (byte) ((w >> 8) & 0xff); |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
326 b[7] = (byte) (w & 0xff); |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
327 b[8] = (byte) ((h >> 8) & 0xff); |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
328 b[9] = (byte) (h & 0xff); |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
329 |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
330 // os.write(b); |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
331 } |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
332 |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
333 public void notProxy() { |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
334 proxyFlag = false; |
|
9d3478d11d3b
Add the processing of client
Taninari YU <you@cr.ie.u-ryukyu.ac.jp>
parents:
32
diff
changeset
|
335 } |
| 35 | 336 |
| 337 public void setEcho(EchoClient _echo) { | |
| 338 echo = _echo; | |
| 339 } | |
| 340 | |
| 36 | 341 public void setViewer(Viewer v) { |
| 342 echo.setViewer(v); | |
| 343 } | |
| 344 | |
| 35 | 345 public EchoClient getEcho() { |
| 346 return echo; | |
| 347 } | |
| 43 | 348 |
| 349 public void setTerminationType(boolean setType) { | |
| 350 /*nop*/ | |
| 351 } | |
| 352 | |
| 353 public boolean getTerminationType() { | |
| 354 /*nop*/ | |
| 355 return true; | |
| 356 } | |
| 45 | 357 |
| 358 public void setProxyAddr(String proxyAddr) { | |
| 359 this.proxyAddr = proxyAddr; | |
| 360 } | |
| 52 | 361 |
| 362 | |
| 363 public void close() { | |
| 364 //nothing | |
| 365 } | |
| 45 | 366 |
| 28 | 367 } |