Mercurial > hg > Members > riono > TreeVNC_ja_comment
annotate src/main/java/jp/ac/u_ryukyu/treevnc/TreeRFBProto.java @ 502:b9e73589202c
fix header
| author | oshiro |
|---|---|
| date | Mon, 18 Feb 2019 17:08:34 +0900 |
| parents | 57ee5c26e8eb |
| children | 0f9160194a04 |
| rev | line source |
|---|---|
| 32 | 1 package jp.ac.u_ryukyu.treevnc; |
| 28 | 2 |
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3 import com.glavsoft.exceptions.TransportException; |
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4 import com.glavsoft.rfb.client.ClientToServerMessage; |
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5 import com.glavsoft.rfb.encoding.EncodingType; |
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6 import com.glavsoft.rfb.encoding.decoder.FramebufferUpdateRectangle; |
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7 import com.glavsoft.rfb.protocol.Protocol; |
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8 import com.glavsoft.rfb.protocol.ProtocolContext; |
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9 import com.glavsoft.transport.Reader; |
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10 import com.glavsoft.transport.Writer; |
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11 import com.glavsoft.viewer.ConnectionPresenter; |
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12 import com.glavsoft.viewer.ViewerInterface; |
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13 import com.glavsoft.viewer.swing.ConnectionParams; |
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14 |
| 498 | 15 import java.awt.*; |
| 28 | 16 import java.io.IOException; |
| 206 | 17 import java.io.OutputStream; |
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18 import java.io.UnsupportedEncodingException; |
| 291 | 19 import java.net.*; |
| 28 | 20 import java.nio.ByteBuffer; |
| 109 | 21 import java.nio.ByteOrder; |
| 369 | 22 import java.util.Enumeration; |
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23 import java.util.Iterator; |
| 28 | 24 import java.util.LinkedList; |
| 25 import java.util.concurrent.atomic.AtomicInteger; | |
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26 import java.util.zip.DataFormatException; |
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27 import java.util.zip.Deflater; |
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28 import java.util.zip.Inflater; |
| 150 | 29 |
| 124 | 30 |
| 207 | 31 public class TreeRFBProto { |
| 231 | 32 |
| 223 | 33 protected final static int FramebufferUpdate = 0; |
| 34 protected ProtocolContext context; | |
| 35 private int clients = 0; | |
| 36 public MulticastQueue<LinkedList<ByteBuffer>> multicastqueue = new MulticastQueue<LinkedList<ByteBuffer>>(); | |
| 37 public int acceptPort = 0; | |
| 174 | 38 private String myAddress; |
| 223 | 39 private long counter = 0; // packet serial number |
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40 public ServerSocket servSock; |
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41 private static final int INFLATE_BUFSIZE = 1024 * 100; |
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42 private Inflater inflater = new Inflater(); |
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43 private Deflater deflater = new Deflater(); |
| 174 | 44 ViewerInterface viewer; |
| 341 | 45 private short id = 0; // my tree node id ( = 0 in root ), -1 means no parent |
| 471 | 46 private short sharingId = -1; // VNCServer's id. this is used control visivility |
| 174 | 47 private TreeVncCommandChannelListener acceptThread; |
| 48 private TreeRootFinderListener getCast; | |
| 176 | 49 private CreateConnectionParam cp; |
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50 private ConnectionPresenter connectionPresenter; |
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51 private TreeVNCNetwork nets = new TreeVNCNetwork(); |
| 223 | 52 private TreeVncRootSelectionPanel rootSelectionPanel; |
| 53 private String vncInterface; | |
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54 private TreeManagement treeManager; |
| 231 | 55 public LinkedList<TreeVNCNode> nodeList; |
| 267 | 56 |
| 57 protected boolean readyReconnect = false; | |
| 58 private boolean cuiVersion; | |
| 59 private boolean permitChangeScreen = true; | |
| 60 private boolean leader; | |
| 61 private boolean hasViewer = false; | |
| 62 private boolean normalTermination; | |
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63 |
| 267 | 64 private boolean isTreeManager; |
| 65 public boolean showTreeNode = false; | |
| 240 | 66 public boolean checkDelay = false; |
| 241 | 67 public boolean addSerialNum = false; |
| 257 | 68 public boolean fixingSize = false; |
| 69 public int fixingSizeWidth; | |
| 70 public int fixingSizeHeight; | |
| 293 | 71 private DatagramSocket socket = null; |
| 306 | 72 private byte[] originalInitData = null; |
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73 private boolean childrenMulticast = true; |
| 474 | 74 private static int uniqueNodeId = 0; // uniquenodeid in all trees (less than MAX_UNIQUE_NODE_ID) |
| 492 | 75 private int deflate_size = 65507; |
| 498 | 76 private ByteBuffer header; |
| 499 | 77 private ByteBuffer c1; |
| 78 private FramebufferUpdateRectangle c1rect; | |
| 502 | 79 private int c1headerPos; |
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80 |
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81 public TreeRFBProto(boolean isTreeManager, ViewerInterface viewer) { |
| 223 | 82 nets.setMyRfb(this); |
| 83 this.isTreeManager = isTreeManager; | |
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84 this.viewer = viewer; |
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85 startTreeRootFindThread(); |
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86 } |
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87 |
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88 public void startTreeRootFindThread() { |
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89 if (isTreeManager()) { |
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90 getCast = new TreeRootFinderListener(viewer); |
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91 Thread treeRootFindThread = new Thread(getCast, "tree-root-find-listener"); |
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92 treeRootFindThread.start(); |
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93 } |
| 223 | 94 } |
| 95 | |
| 96 public boolean isTreeManager() { | |
| 97 return isTreeManager; | |
| 98 } | |
| 207 | 99 |
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100 public void setIsTreeManager(boolean isTreeManager) { |
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101 this.isTreeManager = isTreeManager; |
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102 } |
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103 |
| 378 | 104 public boolean isAddSerialNum() { |
| 105 return addSerialNum; | |
| 106 } | |
| 107 | |
| 223 | 108 public ProtocolContext getContext() { |
| 109 return context; | |
| 110 } | |
| 111 | |
| 112 /** | |
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113 * handle new client accept |
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114 * it also handle TreeVNC Command |
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115 * |
| 223 | 116 * @param os |
| 117 * @param is | |
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118 * @param intf |
| 223 | 119 * @throws IOException |
| 120 * @throws TransportException | |
| 121 */ | |
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122 public void newClient(final Writer os, final Reader is, final String intf) { |
| 223 | 123 final int myId = clients; |
| 124 final MulticastQueue.Client<LinkedList<ByteBuffer>> c = multicastqueue.newClient(); | |
| 125 final AtomicInteger writerRunning = new AtomicInteger(); | |
| 126 writerRunning.set(1); | |
| 127 /** | |
| 128 * Timeout thread. If a client is suspended, it has top of queue | |
| 129 * indefinitely, which caused memory overflow. After the timeout, we | |
| 130 * poll the queue and discard it. Start long wait if writer is running. | |
| 131 */ | |
| 132 final Runnable timer = new Runnable() { | |
| 133 public void run() { | |
| 134 int count = 0; | |
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135 for (; ; ) { |
| 223 | 136 long timeout = 50000 / 8; |
| 137 try { | |
| 138 synchronized (this) { | |
| 139 int state, flag; | |
| 140 writerRunning.set(0); | |
| 141 wait(timeout); | |
| 142 flag = 0; | |
| 143 while ((state = writerRunning.get()) == 0) { | |
| 144 c.poll(); // discard, should be timeout | |
| 145 count++; | |
| 146 if (flag == 0) { | |
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147 // System.out.println("Discarding " + myId + " count=" + count); |
| 223 | 148 flag = 1; |
| 149 } | |
| 150 wait(10); // if this is too short, writer cannot | |
| 151 // take the poll, if this is too | |
| 152 // long, memory will overflow... | |
| 153 } | |
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154 // if (flag == 1) |
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155 // System.out.println("Resuming " + myId + " count=" + count); |
| 223 | 156 if (state != 1) { |
| 157 System.out.println("Client died " + myId); | |
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158 // System.out.println("task stop"); |
| 330 | 159 String rootHostName = null; |
| 160 int rootHostPort = 0; | |
| 161 String myHostName = null; | |
| 162 int myHostPort = 0; | |
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163 clients = myId; |
| 385 | 164 if (!isTreeManager) { |
| 330 | 165 rootHostName = getConnectionParam().getHostName(); |
| 166 rootHostPort = getConnectionParam().getPort(); | |
| 167 myHostName = getMyAddress(); | |
| 168 myHostPort = getAcceptPort(); | |
| 385 | 169 TreeVncProtocol echo = new TreeVncProtocol(rootHostName, rootHostPort); |
| 170 echo.lostChild(myHostName, myHostPort, myId); | |
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171 } else { |
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172 getTreeManager(intf).fixLostChild1(myId + 1); |
| 330 | 173 } |
| 223 | 174 break; |
| 175 } | |
| 176 } | |
| 177 } catch (InterruptedException e) { | |
| 325 | 178 e.printStackTrace(); |
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179 System.out.println("timer thread interrupted."); |
| 223 | 180 } |
| 181 } | |
| 182 } | |
| 183 }; | |
| 184 new Thread(timer, "timer-discard-multicastqueue").start(); | |
| 185 /** | |
| 186 * handle command from lower node | |
| 187 */ | |
| 188 final Runnable reader = new Runnable() { | |
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189 public void run() { |
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190 for (; ; ) { |
| 223 | 191 try { |
| 192 final byte b[] = new byte[4096]; | |
| 193 final int c = is.readByte(b); | |
| 194 if (c <= 0) | |
| 195 throw new IOException(); | |
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196 // case of root node. |
| 223 | 197 if (isTreeManager()) { |
| 198 if (b[0] == ClientToServerMessage.SERVER_CHANGE_REQUEST) { | |
| 199 if (permitChangeScreen()) { | |
| 200 ByteBuffer buf = ByteBuffer.wrap(b); | |
| 201 buf.order(ByteOrder.BIG_ENDIAN); | |
| 325 | 202 buf.get(); // padding |
| 257 | 203 buf.get(); |
| 204 short id = buf.getShort(); | |
| 205 int length = buf.getInt(); | |
| 325 | 206 if (length == 0) |
| 207 continue; | |
| 257 | 208 byte[] byteAddress = new byte[length]; |
| 209 buf.get(byteAddress); | |
| 325 | 210 String newHostName = new String(byteAddress, "UTF-8"); |
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211 int x = buf.getInt(); |
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212 int y = buf.getInt(); |
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213 int singleWidth = buf.getInt(); |
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214 int singleHeight = buf.getInt(); |
| 340 | 215 int port = buf.getInt(); |
| 410 | 216 int scale = buf.getInt(); |
| 476 | 217 System.out.println("Root server change request :" + newHostName + " : " + port + " id:" + id); |
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218 changeVNCServer(viewer, newHostName, port, x, y, singleWidth, singleHeight, scale, id, is, os); |
| 223 | 219 } else { |
| 220 continue; | |
| 221 } | |
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222 } else if (b[0] == ClientToServerMessage.READY_SHARE_SOUND) { |
| 293 | 223 int rtpPort = selectPort(ConnectionParams.DEFAULT_RTP_PORT); |
| 224 InetAddress hostname = InetAddress.getLocalHost(); | |
| 225 ReceiveSound receiveSound = new ReceiveSound(socket); | |
| 226 Thread receiveSoundThread = new Thread(receiveSound, "receive-sound"); | |
| 227 receiveSoundThread.start(); | |
| 230 | 228 } else if (b[0] == ClientToServerMessage.CHECK_DELAY_REPLY) { |
| 229 ByteBuffer buf = ByteBuffer.wrap(b); | |
| 230 buf.order(ByteOrder.BIG_ENDIAN); | |
| 234 | 231 buf.getShort(); |
| 232 Long time = buf.getLong(); | |
| 233 int port = buf.getInt(); | |
| 234 int addressLength = buf.getInt(); | |
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235 int dataLen = buf.getInt(); |
| 234 | 236 byte[] byteAddress = new byte[addressLength]; |
| 237 buf.get(byteAddress); | |
| 238 String address = new String(byteAddress, "UTF-8"); | |
| 235 | 239 int nodeNum = getNodeNum(port, address); |
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240 if (nodeNum != 0) { |
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241 Long delay = System.currentTimeMillis() - time; |
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242 if (delay > 3000) { |
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243 getTreeManager(intf).fixLostChild1(nodeNum); |
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244 } |
|
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245 System.out.println(System.currentTimeMillis() + " : receive checkDelay : nodeNum" + nodeNum + ", port : " + port + ", address : " + address + ", delay : " + delay + ", size : " + dataLen); |
|
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246 } |
| 223 | 247 } |
| 325 | 248 // case of client node. |
| 223 | 249 } else if (b[0] == ClientToServerMessage.SERVER_CHANGE_REQUEST) { |
| 295 | 250 ClientToServerMessage serverChangeRequest = new ClientToServerMessage() { |
|
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251 @Override |
|
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252 public void send(Writer writer) |
|
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253 throws TransportException { |
| 325 | 254 writer.write(b, 0, c); |
|
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255 } |
| 223 | 256 }; |
| 295 | 257 context.sendMessage(serverChangeRequest); |
|
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258 } else if (b[0] == ClientToServerMessage.READY_SHARE_SOUND) { |
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259 ClientToServerMessage readyShareSound = new ClientToServerMessage() { |
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260 @Override |
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261 public void send(Writer writer) |
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262 throws TransportException { |
| 325 | 263 writer.write(b, 0, c); |
|
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264 } |
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265 }; |
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266 context.sendMessage(readyShareSound); |
| 230 | 267 } else if (b[0] == ClientToServerMessage.CHECK_DELAY_REPLY) { |
| 268 ClientToServerMessage checkDelayReply = new ClientToServerMessage() { | |
| 269 @Override | |
| 270 public void send(Writer writer) | |
| 271 throws TransportException { | |
| 325 | 272 writer.write(b, 0, c); |
| 230 | 273 } |
| 274 }; | |
| 275 context.sendMessage(checkDelayReply); | |
| 223 | 276 } |
| 277 } catch (Exception e) { | |
| 278 try { | |
| 279 writerRunning.set(2); | |
| 280 os.close(); | |
| 281 is.close(); | |
| 282 break; | |
| 367 | 283 } catch (Exception e1) { |
|
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284 System.out.println("cannot close ClientToServerMessage " + e1); |
| 367 | 285 |
| 223 | 286 } |
|
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287 System.out.println("cannot read ClientToServerMessage " + e); |
| 367 | 288 |
| 223 | 289 return; |
| 290 } | |
| 325 | 291 |
| 292 /* | |
| 293 // あとで検討 | |
| 294 } catch (TransportException e) { | |
| 295 | |
| 296 } | |
| 297 */ | |
| 223 | 298 } |
| 299 } | |
| 300 }; | |
| 301 /** | |
| 302 * send packets to a client (one thread for each client ) | |
| 303 */ | |
| 304 Runnable sender = new Runnable() { | |
| 305 public void run() { | |
| 306 writerRunning.set(1); | |
| 307 try { | |
|
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308 requestThreadNotify(); // send full screen request via fullScreenRequestThread |
| 384 | 309 |
| 223 | 310 // after this, we discard upward packet. |
| 239 | 311 new Thread(reader, "upward-packet-processing").start(); |
|
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312 |
|
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313 for (; ; ) { |
| 223 | 314 LinkedList<ByteBuffer> bufs = c.poll(); |
| 315 int inputIndex = 0; | |
| 316 ByteBuffer header = bufs.get(inputIndex); | |
| 317 if (header == null) | |
| 318 continue; | |
| 319 writeToClient(os, bufs, inputIndex); | |
| 320 writerRunning.set(1); // yes my client is awaking. | |
|
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321 if (!childrenMulticast) { |
|
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322 for (; ; ) { |
|
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323 LinkedList<ByteBuffer> flag = c.poll(); |
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324 if (flag.size() == 0) { |
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325 break; |
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326 } |
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327 } |
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328 } |
| 223 | 329 } |
| 330 } catch (Exception e) { | |
| 331 try { | |
| 332 writerRunning.set(2); | |
| 333 os.close(); | |
| 334 } catch (IOException e1) { | |
|
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335 System.out.println("root writer close failed :" + e1); |
| 223 | 336 } |
|
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337 System.out.println("root writer failed :" + e); |
| 223 | 338 /* if socket closed cliList.remove(newCli); */ |
| 339 } | |
| 340 } | |
|
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341 |
| 223 | 342 public void writeToClient(final Writer os, |
|
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343 LinkedList<ByteBuffer> bufs, int inputIndex) |
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344 throws TransportException { |
| 354 | 345 while (inputIndex < bufs.size()) { |
| 223 | 346 ByteBuffer b = bufs.get(inputIndex++); |
| 347 os.write(b.array(), b.position(), b.limit()); | |
| 348 } | |
| 349 os.flush(); | |
| 350 multicastqueue.heapAvailable(); | |
| 351 } | |
| 352 }; | |
| 353 clients++; | |
| 354 new Thread(sender, "writer-to-lower-node").start(); | |
| 355 } | |
|
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356 |
|
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357 public boolean permitChangeScreen() { |
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358 return permitChangeScreen; |
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359 } |
| 223 | 360 |
|
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361 |
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362 public void setPermitChangeScreen(boolean v) { |
| 223 | 363 permitChangeScreen = v; |
|
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364 } |
| 223 | 365 |
| 366 public void requestThreadNotify() { | |
|
448
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367 // send full screen update |
| 223 | 368 } |
| 369 | |
| 370 | |
| 28 | 371 public void setProtocolContext(Protocol workingProtocol) { |
| 372 context = workingProtocol; | |
| 373 } | |
| 29 | 374 |
|
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375 public Socket accept() throws IOException { |
|
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376 return servSock.accept(); |
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377 } |
| 31 | 378 |
|
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379 public int selectPort(int p) { |
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380 int port = p; |
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381 while (true) { |
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382 try { |
|
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383 servSock = new ServerSocket(port); |
|
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384 acceptPort = port; |
| 181 | 385 myAddress = "127.0.0.1"; |
| 207 | 386 nets.getNetworkInterfaces(); |
|
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387 break; |
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388 } catch (BindException e) { |
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389 port++; |
|
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390 continue; |
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391 } catch (IOException e) { |
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392 |
|
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393 } |
|
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394 } |
|
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395 System.out.println("accept port = " + port); |
|
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396 return port; |
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397 } |
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398 |
| 223 | 399 public void setViewer(ViewerInterface v) { |
| 400 viewer = v; | |
| 401 } | |
| 402 | |
| 403 public ViewerInterface getViewer() { | |
| 404 return viewer; | |
| 405 } | |
| 406 | |
| 407 | |
| 408 void sendInitData(OutputStream os) throws IOException { | |
| 409 os.write(context.getInitData()); | |
| 410 } | |
| 411 | |
| 412 | |
| 413 public void setTerminationType(boolean setType) { | |
| 414 normalTermination = setType; | |
| 415 } | |
| 416 | |
| 417 public boolean getTerminationType() { | |
| 418 return normalTermination; | |
| 419 } | |
| 43 | 420 |
| 206 | 421 |
|
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422 public void addHostToSelectionPanel(int port, String hostname, String myHostName) { |
| 223 | 423 if (rootSelectionPanel != null) { |
| 424 rootSelectionPanel.checkBox(Integer.toString(port) + ":" + hostname + ":" + myHostName); | |
| 384 | 425 rootSelectionPanel.visible(); |
| 223 | 426 } |
| 427 } | |
| 43 | 428 |
|
399
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429 public void createRootSelectionPanel(CreateConnectionParam cp, FindRoot getBcast) { |
|
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430 rootSelectionPanel = new TreeVncRootSelectionPanel(getBcast); |
| 223 | 431 rootSelectionPanel.setCp(cp); |
|
399
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432 rootSelectionPanel.visible(); |
| 223 | 433 } |
| 434 | |
|
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435 public void close() { |
| 223 | 436 // none |
| 437 } | |
| 438 | |
| 439 public int getAcceptPort() { | |
| 440 return acceptPort; | |
| 441 } | |
| 442 | |
| 443 public boolean getReadyReconnect() { | |
| 444 return readyReconnect; | |
| 445 } | |
| 65 | 446 |
| 447 | |
| 223 | 448 public boolean getCuiVersion() { |
| 449 return cuiVersion; | |
| 384 | 450 } |
| 66 | 451 |
|
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452 public void setCuiVersion(boolean flag) { |
| 223 | 453 cuiVersion = flag; |
| 454 } | |
| 455 | |
| 456 public void readCheckDelay(Reader reader) throws TransportException { | |
| 457 | |
| 458 } | |
|
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459 |
| 223 | 460 public synchronized void vncConnected(boolean ready) { |
|
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461 enableChildrenTransmission(); |
| 369 | 462 readyReconnect = ready; |
| 463 if (ready) { | |
| 464 notifyAll(); | |
| 223 | 465 } |
|
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466 } |
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467 |
| 369 | 468 public void printNetworkInterface() { |
|
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469 Socket vncSocket = viewer.getVNCSocket(); |
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470 NetworkInterface ni = nets.getInterface(vncSocket); |
|
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471 if (ni != null) { |
|
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472 vncInterface = ni.getName(); |
| 369 | 473 System.out.print("VNCNetworkInterface :" + vncInterface); |
|
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474 if (false) { |
| 370 | 475 Enumeration<InetAddress> addresses = ni.getInetAddresses(); |
| 476 while (addresses.hasMoreElements()) { | |
| 477 InetAddress adr = addresses.nextElement(); | |
| 478 System.out.print(" " + adr); | |
| 479 } | |
| 369 | 480 } |
| 481 System.out.println(); | |
|
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482 } |
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483 } |
|
94
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484 |
| 223 | 485 public void sendDesktopSizeChange(short id) { |
| 486 LinkedList<ByteBuffer> desktopSize = new LinkedList<ByteBuffer>(); | |
|
454
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|
487 int singleWidth = connectionPresenter.getSingleWidth(); |
|
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488 int singleHeight = connectionPresenter.getSingleHeight(); |
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489 int x = connectionPresenter.getX(); |
|
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diff
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490 int y = connectionPresenter.getY(); |
|
448
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491 desktopSize.add(new ChangeDesktopSize(context.getFbWidth(), context.getFbHeight(), singleWidth,singleHeight, x, y, EncodingType.INIT_DATA, context.getInitData(), id).getMessage()); |
| 380 | 492 if (addSerialNum) { |
| 493 addSerialNumber(desktopSize); | |
| 494 } | |
| 223 | 495 multicastqueue.put(desktopSize); |
| 496 } | |
| 98 | 497 |
| 490 | 498 //public byte[] createOriginalInitData(int singleWidth, int singleHeight, String remoteDesktopName) { |
| 499 // TreeVncCommandChannelListener treeVncCommandChannelListener = new TreeVncCommandChannelListener(this, acceptPort); | |
| 500 // byte[] originalInitData = treeVncCommandChannelListener.createOriginalInitData(singleWidth, singleHeight, remoteDesktopName); | |
| 501 // return originalInitData; | |
| 502 //} | |
| 306 | 503 |
| 223 | 504 public void addSerialNumber(LinkedList<ByteBuffer> bufs) { |
|
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505 ByteBuffer serialNum = multicastqueue.allocate(4 + 8); // addSerialNum flag + SerialNum |
| 380 | 506 serialNum.putInt(1); |
| 223 | 507 serialNum.putLong(counter++); |
| 508 serialNum.flip(); | |
| 509 bufs.addFirst(serialNum); | |
| 510 } | |
|
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511 |
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512 |
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513 public void resetDecoder() { |
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514 context.resetDecoder(); |
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515 } |
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516 |
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517 public void stopReceiverTask() { |
|
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518 if (context != null) { |
|
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519 context.cleanUpSession(null); |
|
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520 context.getRfb().clearChildrenTransmission(); |
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521 } |
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522 // cleanup zlib decoder for new VNCServer |
| 202 | 523 if (isTreeManager()) |
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524 inflater = new Inflater(); |
|
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525 } |
|
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526 |
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527 public void clearChildrenTransmission() { |
| 355 | 528 // discarding does not work now. |
| 529 | |
| 530 /* | |
|
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531 // set discard flag |
| 354 | 532 childrenMulticast = false; |
|
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533 // put gurd erement to restart multicastqueue. |
| 354 | 534 multicastqueue.put(new LinkedList<ByteBuffer>()); |
| 355 | 535 */ |
|
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536 } |
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537 |
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538 public void enableChildrenTransmission() { |
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539 // a child senderTask may skip this flag |
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540 // durling write waiting. in this case, remaining bufferes are sent. |
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541 childrenMulticast = true; |
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542 } |
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543 |
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544 public String getMyAddress() { |
| 174 | 545 return myAddress; |
|
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546 } |
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547 |
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548 /** |
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549 * gzip byte arrays |
| 384 | 550 * |
|
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551 * @param deflater |
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552 * @param inputs byte data[] |
|
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553 * @param inputIndex |
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554 * @param outputs byte data[] |
|
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555 * @return byte length in last byte array |
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556 * @throws IOException |
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557 */ |
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558 public int zip(Deflater deflater, LinkedList<ByteBuffer> inputs, |
|
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559 int inputIndex, LinkedList<ByteBuffer> outputs) throws IOException { |
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560 int len = 0; |
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561 ByteBuffer c1 = multicastqueue.allocate(INFLATE_BUFSIZE); |
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562 while (inputIndex < inputs.size()) { |
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563 ByteBuffer b1 = inputs.get(inputIndex++); |
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564 deflater.setInput(b1.array(), b1.position(), b1.remaining()); |
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565 /** |
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566 * If we finish() stream and reset() it, Deflater start new gzip |
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567 * stream, this makes continuous zlib reader unhappy. if we remove |
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568 * finish(), Deflater.deflate() never flushes its output. The |
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569 * original zlib deflate has flush flag. I'm pretty sure this a kind |
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570 * of bug of Java library. |
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571 */ |
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572 if (inputIndex == inputs.size()) |
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573 deflater.finish(); |
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574 int len1 = 0; |
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575 do { |
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576 len1 = deflater.deflate(c1.array(), c1.position(), |
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577 c1.remaining()); |
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578 if (len1 > 0) { |
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579 len += len1; |
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580 c1.position(c1.position() + len1); |
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581 if (c1.remaining() == 0) { |
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582 c1.flip(); |
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583 outputs.addLast(c1); |
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584 c1 = multicastqueue.allocate(INFLATE_BUFSIZE); |
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585 } |
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586 } |
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587 } while (len1 > 0 || !deflater.needsInput()); // &&!deflater.finished()); |
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588 } |
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589 if (c1.position() != 0) { |
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590 c1.flip(); |
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591 outputs.addLast(c1); |
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592 } |
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593 deflater.reset(); |
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594 return len; |
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595 } |
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596 |
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597 /** |
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598 * gunzip byte arrays |
| 384 | 599 * |
|
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600 * @param inflater |
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601 * @param inputs byte data[] |
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602 * @param bytes byte data[] |
|
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603 * @return number of total bytes |
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604 * @throws IOException |
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605 */ |
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606 public int unzip(Inflater inflater, LinkedList<ByteBuffer> inputs, |
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607 int inputIndex, byte[] bytes, int bufSize) throws DataFormatException { |
| 182 | 608 int position = 0; |
| 609 int limit = bytes.length; | |
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610 while (inputIndex < inputs.size()) { |
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611 ByteBuffer input = inputs.get(inputIndex++); |
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612 inflater.setInput(input.array(), input.position(), input.limit()); |
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613 // if (inputIndex==inputs.size()) if inflater/deflater has symmetry, |
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614 // we need this |
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615 // inflater.end(); but this won't work |
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616 do { |
| 318 | 617 int len0; |
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618 len0 = inflater.inflate(bytes, position, limit - position); |
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619 if (len0 > 0) { |
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620 position += len0; |
|
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621 if (position > limit) throw new DataFormatException(); |
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622 } |
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623 } while (!inflater.needsInput()); |
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624 } |
| 182 | 625 return position; |
|
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626 } |
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627 |
| 498 | 628 |
|
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629 /** |
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630 * Multicast framebufferUpdate to children. |
|
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631 * read FrameBuffferUpdate. If it is ZLE, make it ZLEE which is self contained compressed packet. |
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632 * put the packet to the multicastqueue. Then normal rendering engine read the same stream using is.reset(). |
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633 * |
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634 * @param dataLen |
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635 * @param reader |
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636 * @throws TransportException |
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637 */ |
| 264 | 638 public void readSendData(int dataLen, Reader reader, byte[] bytes, FramebufferUpdateRectangle rect) |
| 498 | 639 throws TransportException { |
|
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640 LinkedList<ByteBuffer> bufs = new LinkedList<ByteBuffer>(); |
|
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641 int headerLen = rect.getEncodingType() == EncodingType.CHECK_DELAY ? 24 : 16; |
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642 ByteBuffer header = multicastqueue.allocate(headerLen); |
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643 ByteBuffer serial = multicastqueue.allocate(4 + 8); |
| 378 | 644 if (!isTreeManager() && addSerialNum) { |
|
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645 reader.readBytes(serial.array(), 0, 4 + 8); |
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646 serial.limit(4 + 8); |
| 182 | 647 } |
| 185 | 648 reader.mark(dataLen); |
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649 reader.readBytes(header.array(), 0, headerLen); |
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650 header.limit(headerLen); |
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651 if (header.get(0) == FramebufferUpdate) { |
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652 int encoding = header.getInt(12); |
| 384 | 653 |
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654 if (encoding == EncodingType.ZRLE.getId() |
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655 || encoding == EncodingType.ZLIB.getId()) { |
| 498 | 656 if (true) { |
| 496 | 657 try { |
| 658 zrleeBlocking(dataLen, reader, bytes, rect, context.getPixelFormat().bitsPerPixel/8, bufs, header); | |
| 659 } catch (DataFormatException e) { | |
| 660 e.printStackTrace(); | |
| 661 } | |
| 494 | 662 return; |
| 663 } | |
|
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664 // recompress into ZREE |
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665 // uncompressed result is remain in bytes |
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666 ByteBuffer len = multicastqueue.allocate(4); |
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667 reader.readBytes(len.array(), 0, 4); |
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668 len.limit(4); |
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669 ByteBuffer inputData = multicastqueue.allocate(dataLen - 20); |
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670 reader.readBytes(inputData.array(), 0, inputData.capacity()); |
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671 inputData.limit(dataLen - 20); |
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672 LinkedList<ByteBuffer> inputs = new LinkedList<ByteBuffer>(); |
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673 inputs.add(inputData); |
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674 header.putInt(12, EncodingType.ZRLEE.getId()); // means |
| 223 | 675 // recompress |
| 676 // every time | |
|
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677 // using new Deflecter every time is incompatible with the |
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678 // protocol, clients have to be modified. |
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679 Deflater nDeflater = deflater; // new Deflater(); |
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680 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); |
| 380 | 681 try { |
| 182 | 682 unzip(inflater, inputs, 0, bytes, INFLATE_BUFSIZE); |
|
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683 // dump32(inputs); |
| 182 | 684 out.add(ByteBuffer.wrap(bytes)); |
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685 int len2 = zip(nDeflater, out, 0, bufs); |
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686 ByteBuffer blen = multicastqueue.allocate(4); |
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687 blen.putInt(len2); |
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688 blen.flip(); |
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689 bufs.addFirst(blen); |
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690 if (checkDelay) { |
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691 bufs = createCheckDelayHeader(bufs, header); |
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692 } else { |
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693 bufs.addFirst(header); |
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694 } |
| 380 | 695 if (addSerialNum) { |
| 696 addSerialNumber(bufs); | |
| 697 } | |
| 492 | 698 multicastqueue.waitput(bufs); |
| 699 } catch (IOException | InterruptedException e) { | |
| 700 throw new TransportException(e); | |
| 701 } catch (DataFormatException e) { | |
| 702 throw new TransportException(e); | |
| 703 } | |
| 704 return; | |
| 705 } | |
| 706 | |
| 707 // ZRLEE is already compressed | |
| 708 bufs.add(header); | |
| 709 if (addSerialNum) { | |
| 710 this.addSerialNumber(bufs); | |
| 711 } | |
| 712 if (dataLen > headerLen) { | |
| 713 ByteBuffer b = multicastqueue.allocate(dataLen - headerLen); | |
| 714 reader.readBytes(b.array(), 0, dataLen - headerLen); | |
| 715 b.limit(dataLen - headerLen); | |
| 716 bufs.add(b); | |
| 717 } | |
| 718 multicastqueue.put(bufs); | |
| 719 | |
| 720 return; | |
| 721 } | |
| 722 // It may be compressed. We can inflate here to avoid repeating clients | |
| 723 // decompressing here, | |
| 724 // but it may generate too many large data. It is better to do it in | |
| 725 // each client. | |
| 726 // But we have do inflation for all input data, so we have to do it | |
| 727 // here. | |
| 728 } | |
| 729 | |
| 730 /** | |
| 731 * Multicast framebufferUpdate to children. | |
| 732 * read FrameBuffferUpdate. If it is ZLE, make it ZLEE which is self contained compressed packet. | |
| 733 * put the packet to the multicastqueue. Then normal rendering engine read the same stream using is.reset(). | |
| 734 * | |
| 735 * @param dataLen | |
| 736 * @param reader | |
| 737 * @throws TransportException | |
| 738 * @throws UnsupportedEncodingException | |
| 739 */ | |
| 494 | 740 |
| 741 | |
| 496 | 742 private void zrleeBlocking(int dataLen, Reader reader, byte[] bytes, FramebufferUpdateRectangle rect, int bytePerPixel, LinkedList<ByteBuffer> bufs, ByteBuffer header) throws TransportException, DataFormatException { |
| 494 | 743 ByteBuffer len = multicastqueue.allocate(4); |
| 744 reader.readBytes(len.array(), 0, 4); | |
| 745 len.limit(4); | |
| 746 ByteBuffer inputData = multicastqueue.allocate(dataLen - 20); | |
| 747 reader.readBytes(inputData.array(), 0, inputData.capacity()); | |
| 748 inputData.limit(dataLen - 20); | |
| 749 LinkedList<ByteBuffer> inputs = new LinkedList<ByteBuffer>(); | |
| 750 inputs.add(inputData); | |
| 751 header.putInt(12, EncodingType.ZRLEE.getId()); // means | |
| 752 // recompress | |
| 753 // every time | |
| 754 // using new Deflecter every time is incompatible with the | |
| 755 // protocol, clients have to be modified. | |
| 756 Deflater nDeflater = deflater; // new Deflater(); | |
| 757 LinkedList<ByteBuffer> out = new LinkedList<ByteBuffer>(); | |
| 758 int inflate_size = rect.width * rect.height * bytePerPixel; | |
| 492 | 759 |
| 494 | 760 unzip(inflater, inputs, 0, bytes, inflate_size); |
| 498 | 761 this.header = header; |
| 494 | 762 // dump32(inputs); |
| 499 | 763 c1 = multicastqueue.allocate(deflate_size); |
| 502 | 764 if (addSerialNum) |
| 765 c1.putLong(counter++); | |
| 766 if (checkDelay) | |
| 767 CheckDelay.checkDelay(c1, rect.x, rect.y, rect.width, rect.height, System.currentTimeMillis(), EncodingType.CHECK_DELAY); | |
| 768 c1headerPos = c1.position(); | |
| 769 c1.put(header); | |
| 499 | 770 c1rect = new FramebufferUpdateRectangle(rect.x, rect.y, 0, 0); |
| 498 | 771 return; |
| 772 } | |
| 773 | |
| 499 | 774 public void multicastPut(FramebufferUpdateRectangle rect, byte[] bytes, int prevoffset, int offset, int tilex, int tiley) { |
| 775 int span = offset - prevoffset; | |
| 776 deflater.setInput(bytes,prevoffset,span); | |
| 777 c1rect.height = tiley; | |
| 501 | 778 if (c1.remaining() < span || c1rect.x + c1rect.width + tilex >= rect.x + rect.width ) { |
| 499 | 779 deflater.deflate(c1, Deflater.FULL_FLUSH); |
| 780 c1.flip(); | |
| 781 try { | |
| 502 | 782 writeUpdateRectangleWithHeader(c1, c1headerPos, c1.remaining(), c1rect.x, c1rect.y, c1rect.width, c1rect.height); |
| 499 | 783 } catch (InterruptedException e) { |
| 784 e.printStackTrace(); | |
| 494 | 785 } |
| 501 | 786 c1rect.x += c1rect.width; |
| 787 if (c1rect.x >= rect.x + rect.width) { | |
| 788 c1rect.x = rect.x; | |
| 789 c1rect.y += tiley; | |
| 790 } | |
| 791 c1rect.width = 0; | |
| 499 | 792 c1 = multicastqueue.allocate(deflate_size); |
| 502 | 793 if (addSerialNum) |
| 794 c1.putLong(counter++); | |
| 795 c1headerPos = c1.position(); | |
| 796 c1.put(header); | |
| 499 | 797 } else { |
| 798 deflater.deflate(c1, Deflater.SYNC_FLUSH); | |
| 799 } | |
| 800 c1rect.width += tilex; | |
| 494 | 801 } |
| 492 | 802 |
| 502 | 803 private void writeUpdateRectangleWithHeader(ByteBuffer c1, int headerPos, int len2, int x, int y, int w, int h) throws InterruptedException { |
| 494 | 804 deflater.reset(); |
| 233 | 805 |
| 502 | 806 c1.putInt(len2); |
| 807 c1.putShort(headerPos + 4,(short) x); | |
| 808 c1.putShort(headerPos + 6,(short) y); | |
| 809 c1.putShort(headerPos + 8,(short) w); | |
| 810 c1.putShort(headerPos + 10,(short) h); | |
| 811 LinkedList<ByteBuffer> bufs = new LinkedList<ByteBuffer>(); | |
| 812 bufs.add(c1); | |
| 494 | 813 multicastqueue.waitput(bufs); |
|
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814 } |
| 124 | 815 |
|
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816 public LinkedList<ByteBuffer> createCheckDelayHeader(LinkedList<ByteBuffer> checkDelay, ByteBuffer header) { |
|
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817 int x = (int) header.getShort(4); |
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818 int y = (int) header.getShort(6); |
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819 int width = (int) header.getShort(8); |
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820 int height = (int) header.getShort(10); |
|
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821 long time = System.currentTimeMillis(); |
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822 checkDelay.addFirst(new CheckDelay(x, y, width, height, time, EncodingType.CHECK_DELAY).getMessage()); |
|
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823 return checkDelay; |
|
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824 } |
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825 |
| 223 | 826 public void setId(short id) { |
| 827 this.id = id; | |
| 828 } | |
| 169 | 829 |
| 223 | 830 public short getId() { |
| 831 return id; | |
| 832 } | |
| 169 | 833 |
| 174 | 834 public void setMyAddress(String myHostName) { |
| 835 this.myAddress = myHostName; | |
| 223 | 836 |
| 174 | 837 } |
| 838 | |
| 839 public void setLeader(boolean leader) { | |
| 840 this.leader = leader; | |
| 841 } | |
| 842 | |
| 843 public boolean isLeader() { | |
| 844 return leader; | |
| 845 } | |
| 846 | |
| 203 | 847 public void setTreeManager(String intf, TreeManagement clients) { |
| 223 | 848 nets.setTreeManager(intf, clients); |
| 174 | 849 } |
| 223 | 850 |
| 203 | 851 public TreeManagement getTreeManager(String intf) { |
|
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852 this.treeManager = nets.getTreeManager(intf); |
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853 this.nodeList = treeManager.getList(); |
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854 return treeManager; |
| 174 | 855 } |
| 856 | |
| 470 | 857 public int getNewNodeId () { |
| 471 | 858 return ++uniqueNodeId; |
| 859 } // 0 is reserved for root | |
| 470 | 860 |
| 174 | 861 /** |
|
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862 * change VNCServer is called when host change. |
|
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863 * |
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864 * @param vncProxyService |
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865 * @param hostName HostAddress |
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866 * @param x |
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867 * @param y |
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868 * @param width FrameWidth |
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869 * @param height FrameHeight |
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870 * @param scale |
| 351 | 871 * @param newVNCServerId |
| 382 | 872 * @param is |
| 873 * @param os | |
| 174 | 874 */ |
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875 public void changeVNCServer(ViewerInterface vncProxyService, String hostName, int port, int x, int y, int width, int height, int scale, short newVNCServerId, Reader is, Writer os) |
| 325 | 876 throws IOException { |
| 351 | 877 if (newVNCServerId == -1) { |
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878 // change to the tree vnc root on other network. |
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879 vncProxyService.changeToDirectConnectedServer(hostName, is, os, x, y, width, height, scale); |
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880 return; |
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881 } |
| 342 | 882 // serverChangeの処理 |
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883 vncProxyService.inhelitClients(hostName, newVNCServerId, x, y, width, height, scale); |
| 317 | 884 // after connecting VNC server, rfb send SEND_INIT_DATA command and wakes me up if necessary |
| 322 | 885 // stop reader stop |
| 174 | 886 } |
| 887 | |
| 888 /** | |
| 889 * start accepting children | |
| 890 * run rootFinderListener if necessary | |
| 891 */ | |
| 176 | 892 public void createConnectionAndStart(ViewerInterface v) { |
| 223 | 893 selectPort(ConnectionParams.DEFAULT_VNC_ROOT); |
| 176 | 894 acceptThread = new TreeVncCommandChannelListener(this, getAcceptPort()); |
| 223 | 895 Thread thread = new Thread(acceptThread, "TreeVNC-accept"); |
| 896 thread.start(); | |
| 176 | 897 } |
| 898 | |
| 174 | 899 public TreeVncCommandChannelListener getAcceptThread() { |
| 900 return acceptThread; | |
| 901 } | |
| 902 | |
| 176 | 903 public void setConnectionParam(CreateConnectionParam createConnectionParam) { |
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904 cp = createConnectionParam; |
| 176 | 905 } |
| 906 | |
| 907 public CreateConnectionParam getConnectionParam() { | |
| 908 return cp; | |
| 909 } | |
| 910 | |
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911 public boolean hasViewer() { |
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912 return hasViewer; |
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913 } |
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914 |
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915 public void setHasViewer(boolean b) { |
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916 hasViewer = b; |
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917 } |
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918 |
| 223 | 919 public void setShowTree(boolean showTree) { |
| 240 | 920 this.showTreeNode = showTree; |
| 921 } | |
| 922 | |
| 923 public void setCheckDelay(boolean checkDelay) { | |
| 924 this.checkDelay = checkDelay; | |
| 223 | 925 } |
| 194 | 926 |
| 241 | 927 public void setAddSerialNum(boolean addSerialNum) { |
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928 this.addSerialNum = addSerialNum; |
| 241 | 929 } |
| 930 | |
| 235 | 931 public int getNodeNum(int port, String address) { |
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932 int nodeNum = 0; |
| 384 | 933 |
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934 for (Iterator<TreeVNCNode> i = nodeList.iterator(); i.hasNext(); ) { |
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935 TreeVNCNode tvn = (TreeVNCNode) i.next(); |
| 235 | 936 if (port == tvn.port && address.equals(tvn.hostname)) { |
| 937 nodeNum = tvn.treeNum; | |
| 938 return nodeNum; | |
| 939 } | |
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940 } |
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941 return nodeNum; |
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942 } |
| 241 | 943 |
| 257 | 944 public void setFixingSize(boolean fixingSize) { |
| 945 this.fixingSize = fixingSize; | |
| 256 | 946 } |
| 267 | 947 |
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948 public boolean hasParent() { |
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949 return id != -1; |
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950 } |
| 384 | 951 |
| 952 /** | |
| 953 * server change to directed connected server | |
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954 * server maybe on the different network |
| 384 | 955 * so can not in whereToConnect message |
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956 * reuse dynamic connect socket us a new client |
| 384 | 957 * reother server exchange socket when serverChangeRequest with id -1 |
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958 * |
| 384 | 959 * @param previousReader |
| 960 * @param previousWriter | |
| 961 */ | |
| 962 public void exchangeDirectConnectedServer(Reader previousReader, Writer previousWriter) { | |
| 963 String adr = viewer.getRfb().getMyAddress(); | |
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964 ConnectionPresenter cp1 = viewer.getConnectionPresenter(); |
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965 int scale = cp1.getRetinaScale(); |
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966 int singleWidth = cp1.getSingleWidth(); |
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967 int singleHeight = cp1.getSingleHeight(); |
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968 int x = cp1.getX(); |
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969 int y = cp1.getY(); |
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970 ScreenChangeRequest scr = new ScreenChangeRequest(adr, ConnectionParams.DEFAULT_VNC_ROOT, (short) -1, x, y, singleWidth, singleHeight, scale); |
| 384 | 971 try { |
| 972 scr.send(previousWriter); | |
| 973 } catch (TransportException e) { | |
| 974 e.printStackTrace(); | |
| 975 return; | |
| 976 } | |
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977 // newClient(previousWriter, previousReader, null); |
| 384 | 978 } |
| 389 | 979 |
| 980 /** | |
| 981 * Requested server is connected. stop old connection, replace old connection parameter such as | |
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982 * context (PROTOCOL) |
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983 * start new connection and send INIT_DATA |
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984 * |
| 389 | 985 * @param workingProtocol |
| 986 * @param connectionPresenter | |
| 987 */ | |
| 988 public synchronized void newVNCConnection(Protocol workingProtocol, ConnectionPresenter connectionPresenter) { | |
| 989 ProtocolContext previousContext = getContext(); | |
| 990 stopReceiverTask(); | |
| 991 setProtocolContext(workingProtocol); | |
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992 this.connectionPresenter = connectionPresenter; |
| 389 | 993 connectionPresenter.viewer.setConnectionPresenter(connectionPresenter); |
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994 connectionPresenter.addModel("ConnectionParamsModel", connectionPresenter.getConnectionParams()); |
| 389 | 995 if (previousContext != null && isTreeManager() && hasParent()) { |
| 996 Reader previousReader = previousContext.getReader(); | |
| 997 Writer previousWriter = previousContext.getWriter(); | |
| 424 | 998 // exchangeDirectConnectedServer(previousReader, previousWriter); |
| 389 | 999 } |
| 1000 enableChildrenTransmission(); | |
| 1001 printNetworkInterface(); | |
| 476 | 1002 System.out.println("newVNCConenction reconnectingId: " + connectionPresenter.getReconnectingId()); |
| 1003 if (isTreeManager()) { | |
| 1004 sharingId = connectionPresenter.getReconnectingId(); | |
| 1005 } | |
| 389 | 1006 sendDesktopSizeChange(connectionPresenter.getReconnectingId()); |
| 1007 } | |
| 412 | 1008 |
| 1009 public void sendErrorAnnounce(short reconnectingId, String message) { | |
| 1010 LinkedList<ByteBuffer> errorAnnounce = new LinkedList<ByteBuffer>(); | |
| 1011 errorAnnounce.add(new ChildNodeAnnounce(EncodingType.ERROR_ANNOUNCE, message.getBytes(), reconnectingId).getMessage()); | |
| 1012 if (addSerialNum) { | |
| 1013 addSerialNumber(errorAnnounce); | |
| 1014 } | |
| 1015 multicastqueue.put(errorAnnounce); | |
| 1016 } | |
| 441 | 1017 |
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1018 public void setConnectionPresenter(ConnectionPresenter connectionPresenter) { |
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1019 this.connectionPresenter = connectionPresenter; |
| 441 | 1020 } |
| 471 | 1021 |
| 1022 public short getSharingId() { | |
| 1023 return sharingId; | |
| 1024 } | |
| 1025 | |
| 1026 public void setSharingId(short sharingId) { | |
| 1027 this.sharingId = sharingId; | |
| 1028 } | |
| 1029 | |
| 240 | 1030 } |