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19 package org.eclipse.jetty.http;
20
21 import java.io.UnsupportedEncodingException;
22 import java.net.URI;
23
24 import org.eclipse.jetty.util.MultiMap;
25 import org.eclipse.jetty.util.StringUtil;
26 import org.eclipse.jetty.util.TypeUtil;
27 import org.eclipse.jetty.util.URIUtil;
28 import org.eclipse.jetty.util.UrlEncoded;
29 import org.eclipse.jetty.util.Utf8StringBuilder;
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47
48 public class HttpURI
49 {
50 private static final byte[] __empty={};
51 private final static int
52 START=0,
53 AUTH_OR_PATH=1,
54 SCHEME_OR_PATH=2,
55 AUTH=4,
56 IPV6=5,
57 PORT=6,
58 PATH=7,
59 PARAM=8,
60 QUERY=9,
61 ASTERISK=10;
62
63 boolean _partial=false;
64 byte[] _raw=__empty;
65 String _rawString;
66 int _scheme;
67 int _authority;
68 int _host;
69 int _port;
70 int _portValue;
71 int _path;
72 int _param;
73 int _query;
74 int _fragment;
75 int _end;
76 boolean _encoded=false;
77
78 final Utf8StringBuilder _utf8b = new Utf8StringBuilder(64);
79
80 public HttpURI()
81 {
82
83 }
84
85
86
87
88
89 public HttpURI(boolean parsePartialAuth)
90 {
91 _partial=parsePartialAuth;
92 }
93
94 public HttpURI(String raw)
95 {
96 _rawString=raw;
97 byte[] b;
98 try
99 {
100 b = raw.getBytes(StringUtil.__UTF8);
101 }
102 catch (UnsupportedEncodingException e)
103 {
104 throw new RuntimeException(e.getMessage());
105 }
106 parse(b,0,b.length);
107 }
108
109 public HttpURI(byte[] raw,int offset, int length)
110 {
111 parse2(raw,offset,length);
112 }
113
114 public HttpURI(URI uri)
115 {
116 parse(uri.toASCIIString());
117 }
118
119 public void parse(String raw)
120 {
121 byte[] b = raw.getBytes();
122 parse2(b,0,b.length);
123 _rawString=raw;
124 }
125
126 public void parse(byte[] raw,int offset, int length)
127 {
128 _rawString=null;
129 parse2(raw,offset,length);
130 }
131
132
133 public void parseConnect(byte[] raw,int offset, int length)
134 {
135 _rawString=null;
136 _encoded=false;
137 _raw=raw;
138 int i=offset;
139 int e=offset+length;
140 int state=AUTH;
141 _end=offset+length;
142 _scheme=offset;
143 _authority=offset;
144 _host=offset;
145 _port=_end;
146 _portValue=-1;
147 _path=_end;
148 _param=_end;
149 _query=_end;
150 _fragment=_end;
151
152 loop: while (i<e)
153 {
154 char c=(char)(0xff&_raw[i]);
155 int s=i++;
156
157 switch (state)
158 {
159 case AUTH:
160 {
161 switch (c)
162 {
163 case ':':
164 {
165 _port = s;
166 break loop;
167 }
168 case '[':
169 {
170 state = IPV6;
171 break;
172 }
173 }
174 continue;
175 }
176
177 case IPV6:
178 {
179 switch (c)
180 {
181 case '/':
182 {
183 throw new IllegalArgumentException("No closing ']' for " + StringUtil.toString(_raw,offset,length,URIUtil.__CHARSET));
184 }
185 case ']':
186 {
187 state = AUTH;
188 break;
189 }
190 }
191
192 continue;
193 }
194 }
195 }
196
197 if (_port<_path)
198 _portValue=TypeUtil.parseInt(_raw, _port+1, _path-_port-1,10);
199 else
200 throw new IllegalArgumentException("No port");
201 _path=offset;
202 }
203
204
205 private void parse2(byte[] raw,int offset, int length)
206 {
207 _encoded=false;
208 _raw=raw;
209 int i=offset;
210 int e=offset+length;
211 int state=START;
212 int m=offset;
213 _end=offset+length;
214 _scheme=offset;
215 _authority=offset;
216 _host=offset;
217 _port=offset;
218 _portValue=-1;
219 _path=offset;
220 _param=_end;
221 _query=_end;
222 _fragment=_end;
223 while (i<e)
224 {
225 char c=(char)(0xff&_raw[i]);
226 int s=i++;
227
228 state: switch (state)
229 {
230 case START:
231 {
232 m=s;
233 switch(c)
234 {
235 case '/':
236 state=AUTH_OR_PATH;
237 break;
238 case ';':
239 _param=s;
240 state=PARAM;
241 break;
242 case '?':
243 _param=s;
244 _query=s;
245 state=QUERY;
246 break;
247 case '#':
248 _param=s;
249 _query=s;
250 _fragment=s;
251 break;
252 case '*':
253 _path=s;
254 state=ASTERISK;
255 break;
256
257 default:
258 state=SCHEME_OR_PATH;
259 }
260
261 continue;
262 }
263
264 case AUTH_OR_PATH:
265 {
266 if ((_partial||_scheme!=_authority) && c=='/')
267 {
268 _host=i;
269 _port=_end;
270 _path=_end;
271 state=AUTH;
272 }
273 else if (c==';' || c=='?' || c=='#')
274 {
275 i--;
276 state=PATH;
277 }
278 else
279 {
280 _host=m;
281 _port=m;
282 state=PATH;
283 }
284 continue;
285 }
286
287 case SCHEME_OR_PATH:
288 {
289
290 if (length>6 && c=='t')
291 {
292 if (_raw[offset+3]==':')
293 {
294 s=offset+3;
295 i=offset+4;
296 c=':';
297 }
298 else if (_raw[offset+4]==':')
299 {
300 s=offset+4;
301 i=offset+5;
302 c=':';
303 }
304 else if (_raw[offset+5]==':')
305 {
306 s=offset+5;
307 i=offset+6;
308 c=':';
309 }
310 }
311
312 switch (c)
313 {
314 case ':':
315 {
316 m = i++;
317 _authority = m;
318 _path = m;
319 c = (char)(0xff & _raw[i]);
320 if (c == '/')
321 state = AUTH_OR_PATH;
322 else
323 {
324 _host = m;
325 _port = m;
326 state = PATH;
327 }
328 break;
329 }
330
331 case '/':
332 {
333 state = PATH;
334 break;
335 }
336
337 case ';':
338 {
339 _param = s;
340 state = PARAM;
341 break;
342 }
343
344 case '?':
345 {
346 _param = s;
347 _query = s;
348 state = QUERY;
349 break;
350 }
351
352 case '#':
353 {
354 _param = s;
355 _query = s;
356 _fragment = s;
357 break;
358 }
359 }
360 continue;
361 }
362
363 case AUTH:
364 {
365 switch (c)
366 {
367
368 case '/':
369 {
370 m = s;
371 _path = m;
372 _port = _path;
373 state = PATH;
374 break;
375 }
376 case '@':
377 {
378 _host = i;
379 break;
380 }
381 case ':':
382 {
383 _port = s;
384 state = PORT;
385 break;
386 }
387 case '[':
388 {
389 state = IPV6;
390 break;
391 }
392 }
393 continue;
394 }
395
396 case IPV6:
397 {
398 switch (c)
399 {
400 case '/':
401 {
402 throw new IllegalArgumentException("No closing ']' for " + StringUtil.toString(_raw,offset,length,URIUtil.__CHARSET));
403 }
404 case ']':
405 {
406 state = AUTH;
407 break;
408 }
409 }
410
411 continue;
412 }
413
414 case PORT:
415 {
416 if (c=='/')
417 {
418 m=s;
419 _path=m;
420 if (_port<=_authority)
421 _port=_path;
422 state=PATH;
423 }
424 continue;
425 }
426
427 case PATH:
428 {
429 switch (c)
430 {
431 case ';':
432 {
433 _param = s;
434 state = PARAM;
435 break;
436 }
437 case '?':
438 {
439 _param = s;
440 _query = s;
441 state = QUERY;
442 break;
443 }
444 case '#':
445 {
446 _param = s;
447 _query = s;
448 _fragment = s;
449 break state;
450 }
451 case '%':
452 {
453 _encoded=true;
454 }
455 }
456 continue;
457 }
458
459 case PARAM:
460 {
461 switch (c)
462 {
463 case '?':
464 {
465 _query = s;
466 state = QUERY;
467 break;
468 }
469 case '#':
470 {
471 _query = s;
472 _fragment = s;
473 break state;
474 }
475 }
476 continue;
477 }
478
479 case QUERY:
480 {
481 if (c=='#')
482 {
483 _fragment=s;
484 break state;
485 }
486 continue;
487 }
488
489 case ASTERISK:
490 {
491 throw new IllegalArgumentException("only '*'");
492 }
493 }
494 }
495
496 if (_port<_path)
497 _portValue=TypeUtil.parseInt(_raw, _port+1, _path-_port-1,10);
498 }
499
500 private String toUtf8String(int offset,int length)
501 {
502 _utf8b.reset();
503 _utf8b.append(_raw,offset,length);
504 return _utf8b.toString();
505 }
506
507 public String getScheme()
508 {
509 if (_scheme==_authority)
510 return null;
511 int l=_authority-_scheme;
512 if (l==5 &&
513 _raw[_scheme]=='h' &&
514 _raw[_scheme+1]=='t' &&
515 _raw[_scheme+2]=='t' &&
516 _raw[_scheme+3]=='p' )
517 return HttpSchemes.HTTP;
518 if (l==6 &&
519 _raw[_scheme]=='h' &&
520 _raw[_scheme+1]=='t' &&
521 _raw[_scheme+2]=='t' &&
522 _raw[_scheme+3]=='p' &&
523 _raw[_scheme+4]=='s' )
524 return HttpSchemes.HTTPS;
525
526 return toUtf8String(_scheme,_authority-_scheme-1);
527 }
528
529 public String getAuthority()
530 {
531 if (_authority==_path)
532 return null;
533 return toUtf8String(_authority,_path-_authority);
534 }
535
536 public String getHost()
537 {
538 if (_host==_port)
539 return null;
540 return toUtf8String(_host,_port-_host);
541 }
542
543 public int getPort()
544 {
545 return _portValue;
546 }
547
548 public String getPath()
549 {
550 if (_path==_param)
551 return null;
552 return toUtf8String(_path,_param-_path);
553 }
554
555 public String getDecodedPath()
556 {
557 if (_path==_param)
558 return null;
559
560 int length = _param-_path;
561 boolean decoding=false;
562
563 for (int i=_path;i<_param;i++)
564 {
565 byte b = _raw[i];
566
567 if (b=='%')
568 {
569 if (!decoding)
570 {
571 _utf8b.reset();
572 _utf8b.append(_raw,_path,i-_path);
573 decoding=true;
574 }
575
576 if ((i+2)>=_param)
577 throw new IllegalArgumentException("Bad % encoding: "+this);
578 if (_raw[i+1]=='u')
579 {
580 if ((i+5)>=_param)
581 throw new IllegalArgumentException("Bad %u encoding: "+this);
582 try
583 {
584 String unicode = new String(Character.toChars(TypeUtil.parseInt(_raw,i+2,4,16)));
585 _utf8b.getStringBuilder().append(unicode);
586 i+=5;
587 }
588 catch(Exception e)
589 {
590 throw new RuntimeException(e);
591 }
592 }
593 else
594 {
595 b=(byte)(0xff&TypeUtil.parseInt(_raw,i+1,2,16));
596 _utf8b.append(b);
597 i+=2;
598 }
599 continue;
600 }
601 else if (decoding)
602 {
603 _utf8b.append(b);
604 }
605 }
606
607 if (!decoding)
608 return toUtf8String(_path,length);
609 return _utf8b.toString();
610 }
611
612 public String getDecodedPath(String encoding)
613 {
614 if (_path==_param)
615 return null;
616
617 int length = _param-_path;
618 byte[] bytes=null;
619 int n=0;
620
621 for (int i=_path;i<_param;i++)
622 {
623 byte b = _raw[i];
624
625 if (b=='%')
626 {
627 if (bytes==null)
628 {
629 bytes=new byte[length];
630 System.arraycopy(_raw,_path,bytes,0,n);
631 }
632
633 if ((i+2)>=_param)
634 throw new IllegalArgumentException("Bad % encoding: "+this);
635 if (_raw[i+1]=='u')
636 {
637 if ((i+5)>=_param)
638 throw new IllegalArgumentException("Bad %u encoding: "+this);
639
640 try
641 {
642 String unicode = new String(Character.toChars(TypeUtil.parseInt(_raw,i+2,4,16)));
643 byte[] encoded = unicode.getBytes(encoding);
644 System.arraycopy(encoded,0,bytes,n,encoded.length);
645 n+=encoded.length;
646 i+=5;
647 }
648 catch(Exception e)
649 {
650 throw new RuntimeException(e);
651 }
652 }
653 else
654 {
655 b=(byte)(0xff&TypeUtil.parseInt(_raw,i+1,2,16));
656 bytes[n++]=b;
657 i+=2;
658 }
659 continue;
660 }
661 else if (bytes==null)
662 {
663 n++;
664 continue;
665 }
666
667 bytes[n++]=b;
668 }
669
670
671 if (bytes==null)
672 return StringUtil.toString(_raw,_path,_param-_path,encoding);
673
674 return StringUtil.toString(bytes,0,n,encoding);
675 }
676
677
678
679
680
681
682
683 public String getPathAndParam()
684 {
685 if (_path==_query)
686 return null;
687 return toUtf8String(_path,_query-_path);
688 }
689
690 public String getCompletePath()
691 {
692 if (_path==_end)
693 return null;
694 return toUtf8String(_path,_end-_path);
695 }
696
697 public String getParam()
698 {
699 if (_param==_query)
700 return null;
701 return toUtf8String(_param+1,_query-_param-1);
702 }
703
704 public String getQuery()
705 {
706 if (_query==_fragment)
707 return null;
708 return toUtf8String(_query+1,_fragment-_query-1);
709 }
710
711 public String getQuery(String encoding)
712 {
713 if (_query==_fragment)
714 return null;
715 return StringUtil.toString(_raw,_query+1,_fragment-_query-1,encoding);
716 }
717
718 public boolean hasQuery()
719 {
720 return (_fragment>_query);
721 }
722
723 public String getFragment()
724 {
725 if (_fragment==_end)
726 return null;
727 return toUtf8String(_fragment+1,_end-_fragment-1);
728 }
729
730 public void decodeQueryTo(MultiMap parameters)
731 {
732 if (_query==_fragment)
733 return;
734 _utf8b.reset();
735 UrlEncoded.decodeUtf8To(_raw,_query+1,_fragment-_query-1,parameters,_utf8b);
736 }
737
738 public void decodeQueryTo(MultiMap parameters, String encoding)
739 throws UnsupportedEncodingException
740 {
741 if (_query==_fragment)
742 return;
743
744 if (encoding==null || StringUtil.isUTF8(encoding))
745 UrlEncoded.decodeUtf8To(_raw,_query+1,_fragment-_query-1,parameters);
746 else
747 UrlEncoded.decodeTo(StringUtil.toString(_raw,_query+1,_fragment-_query-1,encoding),parameters,encoding);
748 }
749
750 public void clear()
751 {
752 _scheme=_authority=_host=_port=_path=_param=_query=_fragment=_end=0;
753 _raw=__empty;
754 _rawString="";
755 _encoded=false;
756 }
757
758 @Override
759 public String toString()
760 {
761 if (_rawString==null)
762 _rawString=toUtf8String(_scheme,_end-_scheme);
763 return _rawString;
764 }
765
766 public void writeTo(Utf8StringBuilder buf)
767 {
768 buf.append(_raw,_scheme,_end-_scheme);
769 }
770
771 }