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29 package org.eclipse.jetty.websocket;
30
31 import java.io.IOException;
32 import java.io.UnsupportedEncodingException;
33 import java.security.MessageDigest;
34 import java.util.Collections;
35 import java.util.List;
36
37 import org.eclipse.jetty.io.AbstractConnection;
38 import org.eclipse.jetty.io.AsyncEndPoint;
39 import org.eclipse.jetty.io.Buffer;
40 import org.eclipse.jetty.io.ByteArrayBuffer;
41 import org.eclipse.jetty.io.Connection;
42 import org.eclipse.jetty.io.EndPoint;
43 import org.eclipse.jetty.util.B64Code;
44 import org.eclipse.jetty.util.StringUtil;
45 import org.eclipse.jetty.util.Utf8Appendable;
46 import org.eclipse.jetty.util.Utf8StringBuilder;
47 import org.eclipse.jetty.util.log.Log;
48 import org.eclipse.jetty.util.log.Logger;
49 import org.eclipse.jetty.websocket.WebSocket.OnBinaryMessage;
50 import org.eclipse.jetty.websocket.WebSocket.OnControl;
51 import org.eclipse.jetty.websocket.WebSocket.OnFrame;
52 import org.eclipse.jetty.websocket.WebSocket.OnTextMessage;
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78 public class WebSocketConnectionRFC6455 extends AbstractConnection implements WebSocketConnection
79 {
80 private static final Logger LOG = Log.getLogger(WebSocketConnectionRFC6455.class);
81
82 final static byte OP_CONTINUATION = 0x00;
83 final static byte OP_TEXT = 0x01;
84 final static byte OP_BINARY = 0x02;
85 final static byte OP_EXT_DATA = 0x03;
86
87 final static byte OP_CONTROL = 0x08;
88 final static byte OP_CLOSE = 0x08;
89 final static byte OP_PING = 0x09;
90 final static byte OP_PONG = 0x0A;
91 final static byte OP_EXT_CTRL = 0x0B;
92
93 final static int CLOSE_NORMAL=1000;
94 final static int CLOSE_SHUTDOWN=1001;
95 final static int CLOSE_PROTOCOL=1002;
96 final static int CLOSE_BAD_DATA=1003;
97 final static int CLOSE_UNDEFINED=1004;
98 final static int CLOSE_NO_CODE=1005;
99 final static int CLOSE_NO_CLOSE=1006;
100 final static int CLOSE_BAD_PAYLOAD=1007;
101 final static int CLOSE_POLICY_VIOLATION=1008;
102 final static int CLOSE_MESSAGE_TOO_LARGE=1009;
103 final static int CLOSE_REQUIRED_EXTENSION=1010;
104 final static int CLOSE_SERVER_ERROR=1011;
105 final static int CLOSE_FAILED_TLS_HANDSHAKE=1015;
106
107 final static int FLAG_FIN=0x8;
108
109
110 final static int VERSION=13;
111
112 static boolean isLastFrame(byte flags)
113 {
114 return (flags&FLAG_FIN)!=0;
115 }
116
117 static boolean isControlFrame(byte opcode)
118 {
119 return (opcode&OP_CONTROL)!=0;
120 }
121
122 private final static byte[] MAGIC;
123 private final List<Extension> _extensions;
124 private final WebSocketParserRFC6455 _parser;
125 private final WebSocketGeneratorRFC6455 _generator;
126 private final WebSocketGenerator _outbound;
127 private final WebSocket _webSocket;
128 private final OnFrame _onFrame;
129 private final OnBinaryMessage _onBinaryMessage;
130 private final OnTextMessage _onTextMessage;
131 private final OnControl _onControl;
132 private final String _protocol;
133 private final int _draft;
134 private final ClassLoader _context;
135 private volatile int _closeCode;
136 private volatile String _closeMessage;
137 private volatile boolean _closedIn;
138 private volatile boolean _closedOut;
139 private int _maxTextMessageSize=-1;
140 private int _maxBinaryMessageSize=-1;
141
142 static
143 {
144 try
145 {
146 MAGIC="258EAFA5-E914-47DA-95CA-C5AB0DC85B11".getBytes(StringUtil.__ISO_8859_1);
147 }
148 catch (UnsupportedEncodingException e)
149 {
150 throw new RuntimeException(e);
151 }
152 }
153
154 private final WebSocket.FrameConnection _connection = new WSFrameConnection();
155
156
157
158 public WebSocketConnectionRFC6455(WebSocket websocket, EndPoint endpoint, WebSocketBuffers buffers, long timestamp, int maxIdleTime, String protocol, List<Extension> extensions,int draft)
159 throws IOException
160 {
161 this(websocket,endpoint,buffers,timestamp,maxIdleTime,protocol,extensions,draft,null);
162 }
163
164
165 public WebSocketConnectionRFC6455(WebSocket websocket, EndPoint endpoint, WebSocketBuffers buffers, long timestamp, int maxIdleTime, String protocol, List<Extension> extensions,int draft, MaskGen maskgen)
166 throws IOException
167 {
168 super(endpoint,timestamp);
169
170 _context=Thread.currentThread().getContextClassLoader();
171
172 _draft=draft;
173 _endp.setMaxIdleTime(maxIdleTime);
174
175 _webSocket = websocket;
176 _onFrame=_webSocket instanceof OnFrame ? (OnFrame)_webSocket : null;
177 _onTextMessage=_webSocket instanceof OnTextMessage ? (OnTextMessage)_webSocket : null;
178 _onBinaryMessage=_webSocket instanceof OnBinaryMessage ? (OnBinaryMessage)_webSocket : null;
179 _onControl=_webSocket instanceof OnControl ? (OnControl)_webSocket : null;
180 _generator = new WebSocketGeneratorRFC6455(buffers, _endp,maskgen);
181
182 _extensions=extensions;
183 WebSocketParser.FrameHandler frameHandler = new WSFrameHandler();
184 if (_extensions!=null)
185 {
186 int e=0;
187 for (Extension extension : _extensions)
188 {
189 extension.bind(
190 _connection,
191 e==extensions.size()-1? frameHandler :extensions.get(e+1),
192 e==0?_generator:extensions.get(e-1));
193 e++;
194 }
195 }
196
197 _outbound=(_extensions==null||_extensions.size()==0)?_generator:extensions.get(extensions.size()-1);
198 WebSocketParser.FrameHandler inbound = (_extensions == null || _extensions.size() == 0) ? frameHandler : extensions.get(0);
199
200 _parser = new WebSocketParserRFC6455(buffers, endpoint, inbound,maskgen==null);
201
202 _protocol=protocol;
203
204 }
205
206
207 public WebSocket.Connection getConnection()
208 {
209 return _connection;
210 }
211
212
213 public List<Extension> getExtensions()
214 {
215 if (_extensions==null)
216 return Collections.emptyList();
217
218 return _extensions;
219 }
220
221
222 public Connection handle() throws IOException
223 {
224 Thread current = Thread.currentThread();
225 ClassLoader oldcontext = current.getContextClassLoader();
226 current.setContextClassLoader(_context);
227 try
228 {
229
230 boolean progress=true;
231
232 while (progress)
233 {
234 int flushed=_generator.flushBuffer();
235 int filled=_parser.parseNext();
236
237 progress = flushed>0 || filled>0;
238 _endp.flush();
239
240 if (_endp instanceof AsyncEndPoint && ((AsyncEndPoint)_endp).hasProgressed())
241 progress=true;
242 }
243 }
244 catch(IOException e)
245 {
246 try
247 {
248 if (_endp.isOpen())
249 _endp.close();
250 }
251 catch(IOException e2)
252 {
253 LOG.ignore(e2);
254 }
255 throw e;
256 }
257 finally
258 {
259 current.setContextClassLoader(oldcontext);
260 _parser.returnBuffer();
261 _generator.returnBuffer();
262 if (_endp.isOpen())
263 {
264 if (_closedIn && _closedOut && _outbound.isBufferEmpty())
265 _endp.close();
266 else if (_endp.isInputShutdown() && !_closedIn)
267 closeIn(CLOSE_NO_CLOSE,null);
268 else
269 checkWriteable();
270 }
271 }
272 return this;
273 }
274
275
276 public void onInputShutdown() throws IOException
277 {
278 if (!_closedIn)
279 _endp.close();
280 }
281
282
283 public boolean isIdle()
284 {
285 return _parser.isBufferEmpty() && _outbound.isBufferEmpty();
286 }
287
288
289 @Override
290 public void onIdleExpired(long idleForMs)
291 {
292 closeOut(WebSocketConnectionRFC6455.CLOSE_NORMAL,"Idle for "+idleForMs+"ms > "+_endp.getMaxIdleTime()+"ms");
293 }
294
295
296 public boolean isSuspended()
297 {
298 return false;
299 }
300
301
302 public void onClose()
303 {
304 final boolean closed;
305 synchronized (this)
306 {
307 closed=_closeCode==0;
308 if (closed)
309 _closeCode=WebSocketConnectionRFC6455.CLOSE_NO_CLOSE;
310 }
311 if (closed)
312 _webSocket.onClose(WebSocketConnectionRFC6455.CLOSE_NO_CLOSE,"closed");
313 }
314
315
316 public void closeIn(int code,String message)
317 {
318 LOG.debug("ClosedIn {} {} {}",this,code,message);
319
320 final boolean closed_out;
321 final boolean tell_app;
322 synchronized (this)
323 {
324 closed_out=_closedOut;
325 _closedIn=true;
326 tell_app=_closeCode==0;
327 if (tell_app)
328 {
329 _closeCode=code;
330 _closeMessage=message;
331 }
332 }
333
334 try
335 {
336 if (tell_app)
337 _webSocket.onClose(code,message);
338 }
339 finally
340 {
341 if (!closed_out)
342 closeOut(code,message);
343 }
344 }
345
346
347 public void closeOut(int code,String message)
348 {
349 LOG.debug("ClosedOut {} {} {}",this,code,message);
350
351 final boolean closed_out;
352 final boolean tell_app;
353 synchronized (this)
354 {
355 closed_out=_closedOut;
356 _closedOut=true;
357 tell_app=_closeCode==0;
358 if (tell_app)
359 {
360 _closeCode=code;
361 _closeMessage=message;
362 }
363 }
364
365 try
366 {
367 if (tell_app)
368 _webSocket.onClose(code,message);
369 }
370 finally
371 {
372 try
373 {
374 if (!closed_out)
375 {
376
377
378
379 if (code < 0 || (code == WebSocketConnectionRFC6455.CLOSE_NO_CODE) || (code == WebSocketConnectionRFC6455.CLOSE_NO_CLOSE)
380 || (code == WebSocketConnectionRFC6455.CLOSE_FAILED_TLS_HANDSHAKE))
381 {
382 code = -1;
383 }
384 else if (code == 0)
385 {
386 code = WebSocketConnectionRFC6455.CLOSE_NORMAL;
387 }
388
389 byte[] bytes = ("xx"+(message==null?"":message)).getBytes(StringUtil.__ISO_8859_1);
390 bytes[0]=(byte)(code/0x100);
391 bytes[1]=(byte)(code%0x100);
392 _outbound.addFrame((byte)FLAG_FIN,WebSocketConnectionRFC6455.OP_CLOSE,bytes,0,code>0?bytes.length:0);
393 _outbound.flush();
394 }
395 }
396 catch(IOException e)
397 {
398 LOG.ignore(e);
399 }
400 }
401 }
402
403 public void shutdown()
404 {
405 final WebSocket.Connection connection = _connection;
406 if (connection != null)
407 connection.close(CLOSE_SHUTDOWN, null);
408 }
409
410
411 public void fillBuffersFrom(Buffer buffer)
412 {
413 _parser.fill(buffer);
414 }
415
416
417 private void checkWriteable()
418 {
419 if (!_outbound.isBufferEmpty() && _endp instanceof AsyncEndPoint)
420 {
421 ((AsyncEndPoint)_endp).scheduleWrite();
422 }
423 }
424
425 protected void onFrameHandshake()
426 {
427 if (_onFrame != null)
428 {
429 _onFrame.onHandshake(_connection);
430 }
431 }
432
433 protected void onWebSocketOpen()
434 {
435 _webSocket.onOpen(_connection);
436 }
437
438
439 private class WSFrameConnection implements WebSocket.FrameConnection
440 {
441 private volatile boolean _disconnecting;
442
443
444 public void sendMessage(String content) throws IOException
445 {
446 if (_closedOut)
447 throw new IOException("closedOut "+_closeCode+":"+_closeMessage);
448 byte[] data = content.getBytes(StringUtil.__UTF8);
449 _outbound.addFrame((byte)FLAG_FIN,WebSocketConnectionRFC6455.OP_TEXT,data,0,data.length);
450 checkWriteable();
451 }
452
453
454 public void sendMessage(byte[] content, int offset, int length) throws IOException
455 {
456 if (_closedOut)
457 throw new IOException("closedOut "+_closeCode+":"+_closeMessage);
458 _outbound.addFrame((byte)FLAG_FIN,WebSocketConnectionRFC6455.OP_BINARY,content,offset,length);
459 checkWriteable();
460 }
461
462
463 public void sendFrame(byte flags,byte opcode, byte[] content, int offset, int length) throws IOException
464 {
465 if (_closedOut)
466 throw new IOException("closedOut "+_closeCode+":"+_closeMessage);
467 _outbound.addFrame(flags,opcode,content,offset,length);
468 checkWriteable();
469 }
470
471
472 public void sendControl(byte ctrl, byte[] data, int offset, int length) throws IOException
473 {
474
475 if (_closedOut)
476 throw new IOException("closedOut "+_closeCode+":"+_closeMessage);
477 _outbound.addFrame((byte)FLAG_FIN,ctrl,data,offset,length);
478 checkWriteable();
479 }
480
481
482 public boolean isMessageComplete(byte flags)
483 {
484 return isLastFrame(flags);
485 }
486
487
488 public boolean isOpen()
489 {
490 return _endp!=null&&_endp.isOpen();
491 }
492
493
494 public void close(int code, String message)
495 {
496 if (_disconnecting)
497 return;
498 _disconnecting=true;
499 WebSocketConnectionRFC6455.this.closeOut(code,message);
500 }
501
502
503 public void setMaxIdleTime(int ms)
504 {
505 try
506 {
507 _endp.setMaxIdleTime(ms);
508 }
509 catch(IOException e)
510 {
511 LOG.warn(e);
512 }
513 }
514
515
516 public void setMaxTextMessageSize(int size)
517 {
518 _maxTextMessageSize=size;
519 }
520
521
522 public void setMaxBinaryMessageSize(int size)
523 {
524 _maxBinaryMessageSize=size;
525 }
526
527
528 public int getMaxIdleTime()
529 {
530 return _endp.getMaxIdleTime();
531 }
532
533
534 public int getMaxTextMessageSize()
535 {
536 return _maxTextMessageSize;
537 }
538
539
540 public int getMaxBinaryMessageSize()
541 {
542 return _maxBinaryMessageSize;
543 }
544
545
546 public String getProtocol()
547 {
548 return _protocol;
549 }
550
551
552 public byte binaryOpcode()
553 {
554 return OP_BINARY;
555 }
556
557
558 public byte textOpcode()
559 {
560 return OP_TEXT;
561 }
562
563
564 public byte continuationOpcode()
565 {
566 return OP_CONTINUATION;
567 }
568
569
570 public byte finMask()
571 {
572 return FLAG_FIN;
573 }
574
575
576 public boolean isControl(byte opcode)
577 {
578 return isControlFrame(opcode);
579 }
580
581
582 public boolean isText(byte opcode)
583 {
584 return opcode==OP_TEXT;
585 }
586
587
588 public boolean isBinary(byte opcode)
589 {
590 return opcode==OP_BINARY;
591 }
592
593
594 public boolean isContinuation(byte opcode)
595 {
596 return opcode==OP_CONTINUATION;
597 }
598
599
600 public boolean isClose(byte opcode)
601 {
602 return opcode==OP_CLOSE;
603 }
604
605
606 public boolean isPing(byte opcode)
607 {
608 return opcode==OP_PING;
609 }
610
611
612 public boolean isPong(byte opcode)
613 {
614 return opcode==OP_PONG;
615 }
616
617
618 public void disconnect()
619 {
620 close(CLOSE_NORMAL,null);
621 }
622
623
624 public void close()
625 {
626 close(CLOSE_NORMAL,null);
627 }
628
629
630 public void setAllowFrameFragmentation(boolean allowFragmentation)
631 {
632 _parser.setFakeFragments(allowFragmentation);
633 }
634
635
636 public boolean isAllowFrameFragmentation()
637 {
638 return _parser.isFakeFragments();
639 }
640
641
642 @Override
643 public String toString()
644 {
645 return String.format("%s@%x l(%s:%d)<->r(%s:%d)",
646 getClass().getSimpleName(),
647 hashCode(),
648 _endp.getLocalAddr(),
649 _endp.getLocalPort(),
650 _endp.getRemoteAddr(),
651 _endp.getRemotePort());
652 }
653 }
654
655
656
657
658 private class WSFrameHandler implements WebSocketParser.FrameHandler
659 {
660 private static final int MAX_CONTROL_FRAME_PAYLOAD = 125;
661 private final Utf8StringBuilder _utf8 = new Utf8StringBuilder(512);
662 private ByteArrayBuffer _aggregate;
663 private byte _opcode=-1;
664
665 public void onFrame(final byte flags, final byte opcode, final Buffer buffer)
666 {
667 boolean lastFrame = isLastFrame(flags);
668
669 synchronized(WebSocketConnectionRFC6455.this)
670 {
671
672 if (_closedIn)
673 return;
674 }
675 try
676 {
677 byte[] array=buffer.array();
678
679 if (isControlFrame(opcode) && buffer.length()>MAX_CONTROL_FRAME_PAYLOAD)
680 {
681 errorClose(WebSocketConnectionRFC6455.CLOSE_PROTOCOL,"Control frame too large: " + buffer.length() + " > " + MAX_CONTROL_FRAME_PAYLOAD);
682 return;
683 }
684
685
686 if ((flags&0x7)!=0)
687 {
688 errorClose(WebSocketConnectionRFC6455.CLOSE_PROTOCOL,"RSV bits set 0x"+Integer.toHexString(flags));
689 return;
690 }
691
692
693 if (_closeCode!=0 && _closeCode!=CLOSE_NORMAL && opcode!=OP_CLOSE)
694 {
695 return;
696 }
697
698
699 if (_onFrame!=null)
700 {
701 if (_onFrame.onFrame(flags,opcode,array,buffer.getIndex(),buffer.length()))
702 return;
703 }
704
705 if (_onControl!=null && isControlFrame(opcode))
706 {
707 if (_onControl.onControl(opcode,array,buffer.getIndex(),buffer.length()))
708 return;
709 }
710
711 switch(opcode)
712 {
713 case WebSocketConnectionRFC6455.OP_CONTINUATION:
714 {
715 if (_opcode==-1)
716 {
717 errorClose(WebSocketConnectionRFC6455.CLOSE_PROTOCOL,"Bad Continuation");
718 return;
719 }
720
721
722 if (_onTextMessage!=null && _opcode==WebSocketConnectionRFC6455.OP_TEXT)
723 {
724 if (_utf8.append(buffer.array(),buffer.getIndex(),buffer.length(),_connection.getMaxTextMessageSize()))
725 {
726
727 if (lastFrame)
728 {
729 _opcode=-1;
730 String msg =_utf8.toString();
731 _utf8.reset();
732 _onTextMessage.onMessage(msg);
733 }
734 }
735 else
736 textMessageTooLarge();
737 }
738
739 if (_opcode>=0 && _connection.getMaxBinaryMessageSize()>=0)
740 {
741 if (_aggregate!=null && checkBinaryMessageSize(_aggregate.length(),buffer.length()))
742 {
743 _aggregate.put(buffer);
744
745
746 if (lastFrame && _onBinaryMessage!=null)
747 {
748 try
749 {
750 _onBinaryMessage.onMessage(_aggregate.array(),_aggregate.getIndex(),_aggregate.length());
751 }
752 finally
753 {
754 _opcode=-1;
755 _aggregate.clear();
756 }
757 }
758 }
759 }
760 break;
761 }
762 case WebSocketConnectionRFC6455.OP_PING:
763 {
764 LOG.debug("PING {}",this);
765 if (!_closedOut)
766 {
767 _connection.sendControl(WebSocketConnectionRFC6455.OP_PONG,buffer.array(),buffer.getIndex(),buffer.length());
768 }
769 break;
770 }
771
772 case WebSocketConnectionRFC6455.OP_PONG:
773 {
774 LOG.debug("PONG {}",this);
775 break;
776 }
777
778 case WebSocketConnectionRFC6455.OP_CLOSE:
779 {
780 int code=WebSocketConnectionRFC6455.CLOSE_NO_CODE;
781 String message=null;
782 if (buffer.length()>=2)
783 {
784 code=(0xff&buffer.array()[buffer.getIndex()])*0x100+(0xff&buffer.array()[buffer.getIndex()+1]);
785
786
787 if (code < WebSocketConnectionRFC6455.CLOSE_NORMAL ||
788 code == WebSocketConnectionRFC6455.CLOSE_UNDEFINED ||
789 code == WebSocketConnectionRFC6455.CLOSE_NO_CLOSE ||
790 code == WebSocketConnectionRFC6455.CLOSE_NO_CODE ||
791 ( code > 1011 && code <= 2999 ) ||
792 code >= 5000 )
793 {
794 errorClose(WebSocketConnectionRFC6455.CLOSE_PROTOCOL,"Invalid close code " + code);
795 return;
796 }
797
798 if (buffer.length()>2)
799 {
800 if(_utf8.append(buffer.array(),buffer.getIndex()+2,buffer.length()-2,_connection.getMaxTextMessageSize()))
801 {
802 message = _utf8.toString();
803 _utf8.reset();
804 }
805 }
806 }
807 else if(buffer.length() == 1)
808 {
809
810 errorClose(WebSocketConnectionRFC6455.CLOSE_PROTOCOL,"Invalid payload length of 1");
811 return;
812 }
813 closeIn(code,message);
814 break;
815 }
816
817 case WebSocketConnectionRFC6455.OP_TEXT:
818 {
819 if (_opcode!=-1)
820 {
821 errorClose(WebSocketConnectionRFC6455.CLOSE_PROTOCOL,"Expected Continuation"+Integer.toHexString(opcode));
822 return;
823 }
824
825 if(_onTextMessage!=null)
826 {
827 if (_connection.getMaxTextMessageSize()<=0)
828 {
829
830 if (lastFrame)
831 _onTextMessage.onMessage(buffer.toString(StringUtil.__UTF8));
832 else
833 {
834 LOG.warn("Frame discarded. Text aggregation disabled for {}",_endp);
835 errorClose(WebSocketConnectionRFC6455.CLOSE_POLICY_VIOLATION,"Text frame aggregation disabled");
836 }
837 }
838
839 else if (_utf8.append(buffer.array(),buffer.getIndex(),buffer.length(),_connection.getMaxTextMessageSize()))
840 {
841 if (lastFrame)
842 {
843 String msg =_utf8.toString();
844 _utf8.reset();
845 _onTextMessage.onMessage(msg);
846 }
847 else
848 {
849 _opcode=WebSocketConnectionRFC6455.OP_TEXT;
850 }
851 }
852 else
853 textMessageTooLarge();
854 }
855 break;
856 }
857
858 case WebSocketConnectionRFC6455.OP_BINARY:
859 {
860 if (_opcode!=-1)
861 {
862 errorClose(WebSocketConnectionRFC6455.CLOSE_PROTOCOL,"Expected Continuation"+Integer.toHexString(opcode));
863 return;
864 }
865
866 if (_onBinaryMessage!=null && checkBinaryMessageSize(0,buffer.length()))
867 {
868 if (lastFrame)
869 {
870 _onBinaryMessage.onMessage(array,buffer.getIndex(),buffer.length());
871 }
872 else if (_connection.getMaxBinaryMessageSize()>=0)
873 {
874 _opcode=opcode;
875
876 if (_aggregate==null)
877 _aggregate=new ByteArrayBuffer(_connection.getMaxBinaryMessageSize());
878 _aggregate.put(buffer);
879 }
880 else
881 {
882 LOG.warn("Frame discarded. Binary aggregation disabed for {}",_endp);
883 errorClose(WebSocketConnectionRFC6455.CLOSE_POLICY_VIOLATION,"Binary frame aggregation disabled");
884 }
885 }
886 break;
887 }
888
889 default:
890 errorClose(WebSocketConnectionRFC6455.CLOSE_PROTOCOL,"Bad opcode 0x"+Integer.toHexString(opcode));
891 break;
892 }
893 }
894 catch(Utf8Appendable.NotUtf8Exception notUtf8)
895 {
896 LOG.warn("NOTUTF8 - {} for {}",notUtf8,_endp, notUtf8);
897 LOG.debug(notUtf8);
898 errorClose(WebSocketConnectionRFC6455.CLOSE_BAD_PAYLOAD,"Invalid UTF-8");
899 }
900 catch(Throwable e)
901 {
902 LOG.warn("{} for {}",e,_endp, e);
903 LOG.debug(e);
904 errorClose(WebSocketConnectionRFC6455.CLOSE_SERVER_ERROR,"Internal Server Error: "+e);
905 }
906 }
907
908 private void errorClose(int code, String message)
909 {
910 _connection.close(code,message);
911
912
913 try
914 {
915 _endp.close();
916 }
917 catch (IOException e)
918 {
919 LOG.warn(e.toString());
920 LOG.debug(e);
921 }
922 }
923
924 private boolean checkBinaryMessageSize(int bufferLen, int length)
925 {
926 int max = _connection.getMaxBinaryMessageSize();
927 if (max>0 && (bufferLen+length)>max)
928 {
929 LOG.warn("Binary message too large > {}B for {}",_connection.getMaxBinaryMessageSize(),_endp);
930 _connection.close(WebSocketConnectionRFC6455.CLOSE_MESSAGE_TOO_LARGE,"Message size > "+_connection.getMaxBinaryMessageSize());
931 _opcode=-1;
932 if (_aggregate!=null)
933 _aggregate.clear();
934 return false;
935 }
936 return true;
937 }
938
939 private void textMessageTooLarge()
940 {
941 LOG.warn("Text message too large > {} chars for {}",_connection.getMaxTextMessageSize(),_endp);
942 _connection.close(WebSocketConnectionRFC6455.CLOSE_MESSAGE_TOO_LARGE,"Text message size > "+_connection.getMaxTextMessageSize()+" chars");
943
944 _opcode=-1;
945 _utf8.reset();
946 }
947
948 public void close(int code,String message)
949 {
950 if (code!=CLOSE_NORMAL)
951 LOG.warn("Close: "+code+" "+message);
952 _connection.close(code,message);
953 }
954
955 @Override
956 public String toString()
957 {
958 return WebSocketConnectionRFC6455.this.toString()+"FH";
959 }
960 }
961
962
963 public static String hashKey(String key)
964 {
965 try
966 {
967 MessageDigest md = MessageDigest.getInstance("SHA1");
968 md.update(key.getBytes("UTF-8"));
969 md.update(MAGIC);
970 return new String(B64Code.encode(md.digest()));
971 }
972 catch (Exception e)
973 {
974 throw new RuntimeException(e);
975 }
976 }
977
978
979 @Override
980 public String toString()
981 {
982 return String.format("%s p=%s g=%s", getClass().getSimpleName(), _parser, _generator);
983 }
984 }