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15 package org.mortbay.jetty;
16
17 import java.io.IOException;
18
19 import javax.servlet.ServletInputStream;
20 import javax.servlet.http.HttpServletResponse;
21
22 import org.mortbay.io.Buffer;
23 import org.mortbay.io.BufferUtil;
24 import org.mortbay.io.Buffers;
25 import org.mortbay.io.ByteArrayBuffer;
26 import org.mortbay.io.EndPoint;
27 import org.mortbay.io.View;
28 import org.mortbay.io.BufferCache.CachedBuffer;
29 import org.mortbay.log.Log;
30
31
32
33
34
35 public class HttpParser implements Parser
36 {
37
38 public static final int STATE_START=-13;
39 public static final int STATE_FIELD0=-12;
40 public static final int STATE_SPACE1=-11;
41 public static final int STATE_FIELD1=-10;
42 public static final int STATE_SPACE2=-9;
43 public static final int STATE_END0=-8;
44 public static final int STATE_END1=-7;
45 public static final int STATE_FIELD2=-6;
46 public static final int STATE_HEADER=-5;
47 public static final int STATE_HEADER_NAME=-4;
48 public static final int STATE_HEADER_IN_NAME=-3;
49 public static final int STATE_HEADER_VALUE=-2;
50 public static final int STATE_HEADER_IN_VALUE=-1;
51 public static final int STATE_END=0;
52 public static final int STATE_EOF_CONTENT=1;
53 public static final int STATE_CONTENT=2;
54 public static final int STATE_CHUNKED_CONTENT=3;
55 public static final int STATE_CHUNK_SIZE=4;
56 public static final int STATE_CHUNK_PARAMS=5;
57 public static final int STATE_CHUNK=6;
58
59 private Buffers _buffers;
60 private EndPoint _endp;
61 private Buffer _header;
62 private Buffer _body;
63 private Buffer _buffer;
64 private View _contentView=new View();
65 private int _headerBufferSize;
66
67 private int _contentBufferSize;
68 private EventHandler _handler;
69 private CachedBuffer _cached;
70 private View.CaseInsensitive _tok0;
71 private View.CaseInsensitive _tok1;
72 private String _multiLineValue;
73 private int _responseStatus;
74 private boolean _forceContentBuffer;
75 private Input _input;
76
77
78 protected int _state=STATE_START;
79 protected byte _eol;
80 protected int _length;
81 protected long _contentLength;
82 protected long _contentPosition;
83 protected int _chunkLength;
84 protected int _chunkPosition;
85
86
87
88
89
90 public HttpParser(Buffer buffer, EventHandler handler)
91 {
92 this._header=buffer;
93 this._buffer=buffer;
94 this._handler=handler;
95
96 if (buffer != null)
97 {
98 _tok0=new View.CaseInsensitive(buffer);
99 _tok1=new View.CaseInsensitive(buffer);
100 _tok0.setPutIndex(_tok0.getIndex());
101 _tok1.setPutIndex(_tok1.getIndex());
102 }
103 }
104
105
106
107
108
109
110
111 public HttpParser(Buffers buffers, EndPoint endp, EventHandler handler, int headerBufferSize, int contentBufferSize)
112 {
113 _buffers=buffers;
114 _endp=endp;
115 _handler=handler;
116 _headerBufferSize=headerBufferSize;
117 _contentBufferSize=contentBufferSize;
118 }
119
120
121 public long getContentLength()
122 {
123 return _contentLength;
124 }
125
126 public long getContentRead()
127 {
128 return _contentPosition;
129 }
130
131
132 public int getState()
133 {
134 return _state;
135 }
136
137
138 public boolean inContentState()
139 {
140 return _state > 0;
141 }
142
143
144 public boolean inHeaderState()
145 {
146 return _state < 0;
147 }
148
149
150 public boolean isChunking()
151 {
152 return _contentLength==HttpTokens.CHUNKED_CONTENT;
153 }
154
155
156 public boolean isIdle()
157 {
158 return isState(STATE_START);
159 }
160
161
162 public boolean isComplete()
163 {
164 return isState(STATE_END);
165 }
166
167
168 public boolean isMoreInBuffer()
169 throws IOException
170 {
171 if ( _header!=null && _header.hasContent() ||
172 _body!=null && _body.hasContent())
173 return true;
174
175 return false;
176 }
177
178
179 public boolean isState(int state)
180 {
181 return _state == state;
182 }
183
184
185
186
187
188
189
190 public void parse() throws IOException
191 {
192 if (_state==STATE_END)
193 reset(false);
194 if (_state!=STATE_START)
195 throw new IllegalStateException("!START");
196
197
198 while (_state != STATE_END)
199 parseNext();
200 }
201
202
203
204
205
206
207
208
209
210 public long parseAvailable() throws IOException
211 {
212 long len = parseNext();
213 long total=len>0?len:0;
214
215
216 while (!isComplete() && _buffer!=null && _buffer.length()>0)
217 {
218 len = parseNext();
219 if (len>0)
220 total+=len;
221 }
222 return total;
223 }
224
225
226
227
228
229
230
231
232 public long parseNext() throws IOException
233 {
234 long total_filled=-1;
235
236 if (_state == STATE_END)
237 return -1;
238
239 if (_buffer==null)
240 {
241 if (_header == null)
242 {
243 _header=_buffers.getBuffer(_headerBufferSize);
244 }
245 _buffer=_header;
246 _tok0=new View.CaseInsensitive(_header);
247 _tok1=new View.CaseInsensitive(_header);
248 _tok0.setPutIndex(_tok0.getIndex());
249 _tok1.setPutIndex(_tok1.getIndex());
250 }
251
252
253 if (_state == STATE_CONTENT && _contentPosition == _contentLength)
254 {
255 _state=STATE_END;
256 _handler.messageComplete(_contentPosition);
257 return total_filled;
258 }
259
260 int length=_buffer.length();
261
262
263 if (length == 0)
264 {
265 int filled=-1;
266 if (_body!=null && _buffer!=_body)
267 {
268 _buffer=_body;
269 filled=_buffer.length();
270 }
271
272 if (_buffer.markIndex() == 0 && _buffer.putIndex() == _buffer.capacity())
273 throw new HttpException(HttpStatus.ORDINAL_413_Request_Entity_Too_Large, "FULL");
274
275 IOException ioex=null;
276
277 if (_endp != null && filled<=0)
278 {
279
280
281 if (_buffer == _body)
282 _buffer.compact();
283
284 if (_buffer.space() == 0)
285 throw new HttpException(HttpStatus.ORDINAL_413_Request_Entity_Too_Large, "FULL "+(_buffer==_body?"body":"head"));
286 try
287 {
288 if (total_filled<0)
289 total_filled=0;
290 filled=_endp.fill(_buffer);
291 if (filled>0)
292 total_filled+=filled;
293 }
294 catch(IOException e)
295 {
296 Log.debug(e);
297 ioex=e;
298 filled=-1;
299 }
300 }
301
302 if (filled < 0)
303 {
304 if ( _state == STATE_EOF_CONTENT)
305 {
306 if (_buffer.length()>0)
307 {
308
309 Buffer chunk=_buffer.get(_buffer.length());
310 _contentPosition += chunk.length();
311 _contentView.update(chunk);
312 _handler.content(chunk);
313 }
314 _state=STATE_END;
315 _handler.messageComplete(_contentPosition);
316 return total_filled;
317 }
318 reset(true);
319 throw new EofException(ioex);
320 }
321 length=_buffer.length();
322 }
323
324
325
326 byte ch;
327 byte[] array=_buffer.array();
328
329 while (_state<STATE_END && length-->0)
330 {
331 ch=_buffer.get();
332
333 if (_eol == HttpTokens.CARRIAGE_RETURN && ch == HttpTokens.LINE_FEED)
334 {
335 _eol=HttpTokens.LINE_FEED;
336 continue;
337 }
338 _eol=0;
339
340 switch (_state)
341 {
342 case STATE_START:
343 _contentLength=HttpTokens.UNKNOWN_CONTENT;
344 _cached=null;
345 if (ch > HttpTokens.SPACE || ch<0)
346 {
347 _buffer.mark();
348 _state=STATE_FIELD0;
349 }
350 break;
351
352 case STATE_FIELD0:
353 if (ch == HttpTokens.SPACE)
354 {
355 _tok0.update(_buffer.markIndex(), _buffer.getIndex() - 1);
356 _state=STATE_SPACE1;
357 continue;
358 }
359 else if (ch < HttpTokens.SPACE && ch>=0)
360 {
361 throw new HttpException(HttpServletResponse.SC_BAD_REQUEST);
362 }
363 break;
364
365 case STATE_SPACE1:
366 if (ch > HttpTokens.SPACE || ch<0)
367 {
368 _buffer.mark();
369 _state=STATE_FIELD1;
370 }
371 else if (ch < HttpTokens.SPACE)
372 {
373 throw new HttpException(HttpServletResponse.SC_BAD_REQUEST);
374 }
375 break;
376
377 case STATE_FIELD1:
378 if (ch == HttpTokens.SPACE)
379 {
380 _tok1.update(_buffer.markIndex(), _buffer.getIndex() - 1);
381 _state=STATE_SPACE2;
382 continue;
383 }
384 else if (ch < HttpTokens.SPACE && ch>=0)
385 {
386
387 _handler.startRequest(HttpMethods.CACHE.lookup(_tok0), _buffer
388 .sliceFromMark(), null);
389 _state=STATE_END;
390 _handler.headerComplete();
391 _handler.messageComplete(_contentPosition);
392 return total_filled;
393 }
394 break;
395
396 case STATE_SPACE2:
397 if (ch > HttpTokens.SPACE || ch<0)
398 {
399 _buffer.mark();
400 _state=STATE_FIELD2;
401 }
402 else if (ch < HttpTokens.SPACE)
403 {
404
405 _handler.startRequest(HttpMethods.CACHE.lookup(_tok0), _tok1, null);
406 _state=STATE_END;
407 _handler.headerComplete();
408 _handler.messageComplete(_contentPosition);
409 return total_filled;
410 }
411 break;
412
413 case STATE_FIELD2:
414 if (ch == HttpTokens.CARRIAGE_RETURN || ch == HttpTokens.LINE_FEED)
415 {
416
417 final Buffer method = HttpMethods.CACHE.lookup(_tok0);
418 if (method==_tok0 && _tok1.length()==3 && Character.isDigit((char)_tok1.peek()))
419 {
420 _responseStatus = BufferUtil.toInt(_tok1);
421 _handler.startResponse(HttpVersions.CACHE.lookup(_tok0), _responseStatus,_buffer.sliceFromMark());
422 }
423 else
424 _handler.startRequest(method, _tok1,HttpVersions.CACHE.lookup(_buffer.sliceFromMark()));
425 _eol=ch;
426 _state=STATE_HEADER;
427 _tok0.setPutIndex(_tok0.getIndex());
428 _tok1.setPutIndex(_tok1.getIndex());
429 _multiLineValue=null;
430 continue;
431
432 }
433 break;
434
435 case STATE_HEADER:
436 switch(ch)
437 {
438 case HttpTokens.COLON:
439 case HttpTokens.SPACE:
440 case HttpTokens.TAB:
441 {
442
443 _length=-1;
444 _state=STATE_HEADER_VALUE;
445 break;
446 }
447
448 default:
449 {
450
451 if (_cached!=null || _tok0.length() > 0 || _tok1.length() > 0 || _multiLineValue != null)
452 {
453
454 Buffer header=_cached!=null?_cached:HttpHeaders.CACHE.lookup(_tok0);
455 _cached=null;
456 Buffer value=_multiLineValue == null ? (Buffer) _tok1 : (Buffer) new ByteArrayBuffer(_multiLineValue);
457
458 int ho=HttpHeaders.CACHE.getOrdinal(header);
459 if (ho >= 0)
460 {
461 int vo=-1;
462
463 switch (ho)
464 {
465 case HttpHeaders.CONTENT_LENGTH_ORDINAL:
466 if (_contentLength != HttpTokens.CHUNKED_CONTENT)
467 {
468 try
469 {
470 _contentLength=BufferUtil.toLong(value);
471 }
472 catch(NumberFormatException e)
473 {
474 Log.ignore(e);
475 throw new HttpException(HttpServletResponse.SC_BAD_REQUEST);
476 }
477 if (_contentLength <= 0)
478 _contentLength=HttpTokens.NO_CONTENT;
479 }
480 break;
481
482 case HttpHeaders.TRANSFER_ENCODING_ORDINAL:
483 value=HttpHeaderValues.CACHE.lookup(value);
484 vo=HttpHeaderValues.CACHE.getOrdinal(value);
485 if (HttpHeaderValues.CHUNKED_ORDINAL == vo)
486 _contentLength=HttpTokens.CHUNKED_CONTENT;
487 else
488 {
489 String c=value.toString();
490 if (c.endsWith(HttpHeaderValues.CHUNKED))
491 _contentLength=HttpTokens.CHUNKED_CONTENT;
492
493 else if (c.indexOf(HttpHeaderValues.CHUNKED) >= 0)
494 throw new HttpException(400,null);
495 }
496 break;
497 }
498 }
499
500 _handler.parsedHeader(header, value);
501 _tok0.setPutIndex(_tok0.getIndex());
502 _tok1.setPutIndex(_tok1.getIndex());
503 _multiLineValue=null;
504 }
505
506
507
508 if (ch == HttpTokens.CARRIAGE_RETURN || ch == HttpTokens.LINE_FEED)
509 {
510
511
512
513 if (_contentLength == HttpTokens.UNKNOWN_CONTENT)
514 {
515 if (_responseStatus == 0
516 || _responseStatus == 304
517 || _responseStatus == 204
518 || _responseStatus < 200)
519 _contentLength=HttpTokens.NO_CONTENT;
520 else
521 _contentLength=HttpTokens.EOF_CONTENT;
522 }
523
524 _contentPosition=0;
525 _eol=ch;
526
527
528 switch (_contentLength > Integer.MAX_VALUE ? Integer.MAX_VALUE : (int) _contentLength)
529 {
530 case HttpTokens.EOF_CONTENT:
531 _state=STATE_EOF_CONTENT;
532 if(_body==null && _buffers!=null)
533 _body=_buffers.getBuffer(_contentBufferSize);
534
535 _handler.headerComplete();
536 break;
537
538 case HttpTokens.CHUNKED_CONTENT:
539 _state=STATE_CHUNKED_CONTENT;
540 if (_body==null && _buffers!=null)
541 _body=_buffers.getBuffer(_contentBufferSize);
542 _handler.headerComplete();
543 break;
544
545 case HttpTokens.NO_CONTENT:
546 _state=STATE_END;
547 _handler.headerComplete();
548 _handler.messageComplete(_contentPosition);
549 break;
550
551 default:
552 _state=STATE_CONTENT;
553 if(_forceContentBuffer ||
554 (_buffers!=null && _body==null && _buffer==_header && _contentLength>=(_header.capacity()-_header.getIndex())))
555 _body=_buffers.getBuffer(_contentBufferSize);
556 _handler.headerComplete();
557 break;
558 }
559 return total_filled;
560 }
561 else
562 {
563
564 _length=1;
565 _buffer.mark();
566 _state=STATE_HEADER_NAME;
567
568
569 if (array!=null)
570 {
571 _cached=HttpHeaders.CACHE.getBest(array, _buffer.markIndex(), length+1);
572
573 if (_cached!=null)
574 {
575 _length=_cached.length();
576 _buffer.setGetIndex(_buffer.markIndex()+_length);
577 length=_buffer.length();
578 }
579 }
580 }
581 }
582 }
583
584 break;
585
586 case STATE_HEADER_NAME:
587 switch(ch)
588 {
589 case HttpTokens.CARRIAGE_RETURN:
590 case HttpTokens.LINE_FEED:
591 if (_length > 0)
592 _tok0.update(_buffer.markIndex(), _buffer.markIndex() + _length);
593 _eol=ch;
594 _state=STATE_HEADER;
595 break;
596 case HttpTokens.COLON:
597 if (_length > 0 && _cached==null)
598 _tok0.update(_buffer.markIndex(), _buffer.markIndex() + _length);
599 _length=-1;
600 _state=STATE_HEADER_VALUE;
601 break;
602 case HttpTokens.SPACE:
603 case HttpTokens.TAB:
604 break;
605 default:
606 {
607 _cached=null;
608 if (_length == -1)
609 _buffer.mark();
610 _length=_buffer.getIndex() - _buffer.markIndex();
611 _state=STATE_HEADER_IN_NAME;
612 }
613 }
614
615 break;
616
617 case STATE_HEADER_IN_NAME:
618 switch(ch)
619 {
620 case HttpTokens.CARRIAGE_RETURN:
621 case HttpTokens.LINE_FEED:
622 if (_length > 0)
623 _tok0.update(_buffer.markIndex(), _buffer.markIndex() + _length);
624 _eol=ch;
625 _state=STATE_HEADER;
626 break;
627 case HttpTokens.COLON:
628 if (_length > 0 && _cached==null)
629 _tok0.update(_buffer.markIndex(), _buffer.markIndex() + _length);
630 _length=-1;
631 _state=STATE_HEADER_VALUE;
632 break;
633 case HttpTokens.SPACE:
634 case HttpTokens.TAB:
635 _state=STATE_HEADER_NAME;
636 break;
637 default:
638 {
639 _cached=null;
640 _length++;
641 }
642 }
643 break;
644
645 case STATE_HEADER_VALUE:
646 switch(ch)
647 {
648 case HttpTokens.CARRIAGE_RETURN:
649 case HttpTokens.LINE_FEED:
650 if (_length > 0)
651 {
652 if (_tok1.length() == 0)
653 _tok1.update(_buffer.markIndex(), _buffer.markIndex() + _length);
654 else
655 {
656
657 if (_multiLineValue == null) _multiLineValue=_tok1.toString();
658 _tok1.update(_buffer.markIndex(), _buffer.markIndex() + _length);
659 _multiLineValue += " " + _tok1.toString();
660 }
661 }
662 _eol=ch;
663 _state=STATE_HEADER;
664 break;
665 case HttpTokens.SPACE:
666 case HttpTokens.TAB:
667 break;
668 default:
669 {
670 if (_length == -1)
671 _buffer.mark();
672 _length=_buffer.getIndex() - _buffer.markIndex();
673 _state=STATE_HEADER_IN_VALUE;
674 }
675 }
676 break;
677
678 case STATE_HEADER_IN_VALUE:
679 switch(ch)
680 {
681 case HttpTokens.CARRIAGE_RETURN:
682 case HttpTokens.LINE_FEED:
683 if (_length > 0)
684 {
685 if (_tok1.length() == 0)
686 _tok1.update(_buffer.markIndex(), _buffer.markIndex() + _length);
687 else
688 {
689
690 if (_multiLineValue == null) _multiLineValue=_tok1.toString();
691 _tok1.update(_buffer.markIndex(), _buffer.markIndex() + _length);
692 _multiLineValue += " " + _tok1.toString();
693 }
694 }
695 _eol=ch;
696 _state=STATE_HEADER;
697 break;
698 case HttpTokens.SPACE:
699 case HttpTokens.TAB:
700 _state=STATE_HEADER_VALUE;
701 break;
702 default:
703 _length++;
704 }
705 break;
706 }
707 }
708
709
710
711
712 length=_buffer.length();
713 if (_input!=null)
714 _input._contentView=_contentView;
715 Buffer chunk;
716 while (_state > STATE_END && length > 0)
717 {
718 if (_eol == HttpTokens.CARRIAGE_RETURN && _buffer.peek() == HttpTokens.LINE_FEED)
719 {
720 _eol=_buffer.get();
721 length=_buffer.length();
722 continue;
723 }
724 _eol=0;
725 switch (_state)
726 {
727 case STATE_EOF_CONTENT:
728 chunk=_buffer.get(_buffer.length());
729 _contentPosition += chunk.length();
730 _contentView.update(chunk);
731 _handler.content(chunk);
732
733 return total_filled;
734
735 case STATE_CONTENT:
736 {
737 long remaining=_contentLength - _contentPosition;
738 if (remaining == 0)
739 {
740 _state=STATE_END;
741 _handler.messageComplete(_contentPosition);
742 return total_filled;
743 }
744
745 if (length > remaining)
746 {
747
748
749 length=(int)remaining;
750 }
751
752 chunk=_buffer.get(length);
753 _contentPosition += chunk.length();
754 _contentView.update(chunk);
755 _handler.content(chunk);
756
757 if(_contentPosition == _contentLength)
758 {
759 _state=STATE_END;
760 _handler.messageComplete(_contentPosition);
761 }
762
763 return total_filled;
764 }
765
766 case STATE_CHUNKED_CONTENT:
767 {
768 ch=_buffer.peek();
769 if (ch == HttpTokens.CARRIAGE_RETURN || ch == HttpTokens.LINE_FEED)
770 _eol=_buffer.get();
771 else if (ch <= HttpTokens.SPACE)
772 _buffer.get();
773 else
774 {
775 _chunkLength=0;
776 _chunkPosition=0;
777 _state=STATE_CHUNK_SIZE;
778 }
779 break;
780 }
781
782 case STATE_CHUNK_SIZE:
783 {
784 ch=_buffer.get();
785 if (ch == HttpTokens.CARRIAGE_RETURN || ch == HttpTokens.LINE_FEED)
786 {
787 _eol=ch;
788 if (_chunkLength == 0)
789 {
790 _state=STATE_END;
791 _handler.messageComplete(_contentPosition);
792 return total_filled;
793 }
794 else
795 _state=STATE_CHUNK;
796 }
797 else if (ch <= HttpTokens.SPACE || ch == HttpTokens.SEMI_COLON)
798 _state=STATE_CHUNK_PARAMS;
799 else if (ch >= '0' && ch <= '9')
800 _chunkLength=_chunkLength * 16 + (ch - '0');
801 else if (ch >= 'a' && ch <= 'f')
802 _chunkLength=_chunkLength * 16 + (10 + ch - 'a');
803 else if (ch >= 'A' && ch <= 'F')
804 _chunkLength=_chunkLength * 16 + (10 + ch - 'A');
805 else
806 throw new IOException("bad chunk char: " + ch);
807 break;
808 }
809
810 case STATE_CHUNK_PARAMS:
811 {
812 ch=_buffer.get();
813 if (ch == HttpTokens.CARRIAGE_RETURN || ch == HttpTokens.LINE_FEED)
814 {
815 _eol=ch;
816 if (_chunkLength == 0)
817 {
818 _state=STATE_END;
819 _handler.messageComplete(_contentPosition);
820 return total_filled;
821 }
822 else
823 _state=STATE_CHUNK;
824 }
825 break;
826 }
827
828 case STATE_CHUNK:
829 {
830 int remaining=_chunkLength - _chunkPosition;
831 if (remaining == 0)
832 {
833 _state=STATE_CHUNKED_CONTENT;
834 break;
835 }
836 else if (length > remaining)
837 length=remaining;
838 chunk=_buffer.get(length);
839 _contentPosition += chunk.length();
840 _chunkPosition += chunk.length();
841 _contentView.update(chunk);
842 _handler.content(chunk);
843
844 return total_filled;
845 }
846 }
847
848 length=_buffer.length();
849 }
850 return total_filled;
851 }
852
853
854
855
856
857 public long fill() throws IOException
858 {
859 if (_buffer==null)
860 {
861 _buffer=_header=getHeaderBuffer();
862 _tok0=new View.CaseInsensitive(_buffer);
863 _tok1=new View.CaseInsensitive(_buffer);
864 }
865 if (_body!=null && _buffer!=_body)
866 _buffer=_body;
867 if (_buffer == _body)
868 _buffer.compact();
869
870 int space=_buffer.space();
871
872
873 if (space == 0)
874 throw new HttpException(HttpStatus.ORDINAL_413_Request_Entity_Too_Large, "FULL "+(_buffer==_body?"body":"head"));
875 else
876 {
877 int filled=-1;
878
879 if (_endp != null )
880 {
881 try
882 {
883 filled=_endp.fill(_buffer);
884 }
885 catch(IOException e)
886 {
887 Log.debug(e);
888 reset(true);
889 throw (e instanceof EofException) ? e:new EofException(e);
890 }
891 }
892
893 return filled;
894 }
895 }
896
897
898
899
900
901 public void skipCRLF()
902 {
903
904 while (_header!=null && _header.length()>0)
905 {
906 byte ch = _header.peek();
907 if (ch==HttpTokens.CARRIAGE_RETURN || ch==HttpTokens.LINE_FEED)
908 {
909 _eol=ch;
910 _header.skip(1);
911 }
912 else
913 break;
914 }
915
916 while (_body!=null && _body.length()>0)
917 {
918 byte ch = _body.peek();
919 if (ch==HttpTokens.CARRIAGE_RETURN || ch==HttpTokens.LINE_FEED)
920 {
921 _eol=ch;
922 _body.skip(1);
923 }
924 else
925 break;
926 }
927
928 }
929
930 public void reset(boolean returnBuffers)
931 {
932 synchronized (this)
933 {
934 if (_input!=null && _contentView.length()>0)
935 _input._contentView=_contentView.duplicate(Buffer.READWRITE);
936
937 _state=STATE_START;
938 _contentLength=HttpTokens.UNKNOWN_CONTENT;
939 _contentPosition=0;
940 _length=0;
941 _responseStatus=0;
942
943 if (_buffer!=null && _buffer.length()>0 && _eol == HttpTokens.CARRIAGE_RETURN && _buffer.peek() == HttpTokens.LINE_FEED)
944 {
945 _buffer.skip(1);
946 _eol=HttpTokens.LINE_FEED;
947 }
948
949 if (_body!=null)
950 {
951 if (_body.hasContent())
952 {
953
954
955
956 _header.setMarkIndex(-1);
957 _header.compact();
958 int take=_header.space();
959 if (take>_body.length())
960 take=_body.length();
961 _body.peek(_body.getIndex(),take);
962 _body.skip(_header.put(_body.peek(_body.getIndex(),take)));
963 }
964
965 if (_body.length()==0)
966 {
967 if (_buffers!=null && returnBuffers)
968 _buffers.returnBuffer(_body);
969 _body=null;
970 }
971 else
972 {
973 _body.setMarkIndex(-1);
974 _body.compact();
975 }
976 }
977
978
979 if (_header!=null)
980 {
981 _header.setMarkIndex(-1);
982 if (!_header.hasContent() && _buffers!=null && returnBuffers)
983 {
984 _buffers.returnBuffer(_header);
985 _header=null;
986 _buffer=null;
987 }
988 else
989 {
990 _header.compact();
991 _tok0.update(_header);
992 _tok0.update(0,0);
993 _tok1.update(_header);
994 _tok1.update(0,0);
995 }
996 }
997
998 _buffer=_header;
999 }
1000 }
1001
1002
1003 public void setState(int state)
1004 {
1005 this._state=state;
1006 _contentLength=HttpTokens.UNKNOWN_CONTENT;
1007 }
1008
1009
1010 public String toString(Buffer buf)
1011 {
1012 return "state=" + _state + " length=" + _length + " buf=" + buf.hashCode();
1013 }
1014
1015
1016 public String toString()
1017 {
1018 return "state=" + _state + " length=" + _length + " len=" + _contentLength;
1019 }
1020
1021
1022 public Buffer getHeaderBuffer()
1023 {
1024 if (_header == null)
1025 {
1026 _header=_buffers.getBuffer(_headerBufferSize);
1027 }
1028 return _header;
1029 }
1030
1031
1032 public Buffer getBodyBuffer()
1033 {
1034 return _body;
1035 }
1036
1037
1038
1039
1040
1041 public void setForceContentBuffer(boolean force)
1042 {
1043 _forceContentBuffer=force;
1044 }
1045
1046
1047
1048
1049 public static abstract class EventHandler
1050 {
1051 public abstract void content(Buffer ref) throws IOException;
1052
1053 public void headerComplete() throws IOException
1054 {
1055 }
1056
1057 public void messageComplete(long contentLength) throws IOException
1058 {
1059 }
1060
1061
1062
1063
1064 public void parsedHeader(Buffer name, Buffer value) throws IOException
1065 {
1066 }
1067
1068
1069
1070
1071 public abstract void startRequest(Buffer method, Buffer url, Buffer version)
1072 throws IOException;
1073
1074
1075
1076
1077 public abstract void startResponse(Buffer version, int status, Buffer reason)
1078 throws IOException;
1079 }
1080
1081
1082
1083
1084
1085
1086 public static class Input extends ServletInputStream
1087 {
1088 protected HttpParser _parser;
1089 protected EndPoint _endp;
1090 protected long _maxIdleTime;
1091 protected Buffer _contentView;
1092
1093
1094 public Input(HttpParser parser, long maxIdleTime)
1095 {
1096 _parser=parser;
1097 _endp=parser._endp;
1098 _maxIdleTime=maxIdleTime;
1099 _contentView=_parser._contentView;
1100 _parser._input=this;
1101 }
1102
1103
1104
1105
1106
1107 public int read() throws IOException
1108 {
1109 int c=-1;
1110 if (blockForContent())
1111 c= 0xff & _contentView.get();
1112 return c;
1113 }
1114
1115
1116
1117
1118
1119 public int read(byte[] b, int off, int len) throws IOException
1120 {
1121 int l=-1;
1122 if (blockForContent())
1123 l= _contentView.get(b, off, len);
1124 return l;
1125 }
1126
1127
1128 private boolean blockForContent() throws IOException
1129 {
1130 if (_contentView.length()>0)
1131 return true;
1132 if (_parser.getState() <= HttpParser.STATE_END)
1133 return false;
1134
1135
1136 if (_endp==null)
1137 _parser.parseNext();
1138
1139
1140 else if (_endp.isBlocking())
1141 {
1142 try
1143 {
1144 _parser.parseNext();
1145
1146
1147 while(_contentView.length() == 0 && !_parser.isState(HttpParser.STATE_END) && _endp.isOpen())
1148 {
1149
1150 _parser.parseNext();
1151 }
1152 }
1153 catch(IOException e)
1154 {
1155 _endp.close();
1156 throw e;
1157 }
1158 }
1159 else
1160 {
1161 _parser.parseNext();
1162
1163
1164 while(_contentView.length() == 0 && !_parser.isState(HttpParser.STATE_END) && _endp.isOpen())
1165 {
1166 if (_endp.isBufferingInput() && _parser.parseNext()>0)
1167 continue;
1168
1169 if (!_endp.blockReadable(_maxIdleTime))
1170 {
1171 _endp.close();
1172 throw new EofException("timeout");
1173 }
1174
1175
1176 _parser.parseNext();
1177 }
1178 }
1179
1180 return _contentView.length()>0;
1181 }
1182
1183
1184
1185
1186
1187 public int available() throws IOException
1188 {
1189 if (_contentView!=null && _contentView.length()>0)
1190 return _contentView.length();
1191 if (!_endp.isBlocking())
1192 _parser.parseNext();
1193
1194 return _contentView==null?0:_contentView.length();
1195 }
1196 }
1197
1198
1199
1200
1201 }