1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 /* 19 * $Id: URI.java 468655 2006-10-28 07:12:06Z minchau $ 20 */ 21 package org.apache.xml.utils; 22 23 import java.io.IOException; 24 import java.io.Serializable; 25 26 import org.apache.xml.res.XMLErrorResources; 27 import org.apache.xml.res.XMLMessages; 28 29 /** 30 * A class to represent a Uniform Resource Identifier (URI). This class 31 * is designed to handle the parsing of URIs and provide access to 32 * the various components (scheme, host, port, userinfo, path, query 33 * string and fragment) that may constitute a URI. 34 * <p> 35 * Parsing of a URI specification is done according to the URI 36 * syntax described in RFC 2396 37 * <http://www.ietf.org/rfc/rfc2396.txt?number=2396>. Every URI consists 38 * of a scheme, followed by a colon (':'), followed by a scheme-specific 39 * part. For URIs that follow the "generic URI" syntax, the scheme- 40 * specific part begins with two slashes ("//") and may be followed 41 * by an authority segment (comprised of user information, host, and 42 * port), path segment, query segment and fragment. Note that RFC 2396 43 * no longer specifies the use of the parameters segment and excludes 44 * the "user:password" syntax as part of the authority segment. If 45 * "user:password" appears in a URI, the entire user/password string 46 * is stored as userinfo. 47 * <p> 48 * For URIs that do not follow the "generic URI" syntax (e.g. mailto), 49 * the entire scheme-specific part is treated as the "path" portion 50 * of the URI. 51 * <p> 52 * Note that, unlike the java.net.URL class, this class does not provide 53 * any built-in network access functionality nor does it provide any 54 * scheme-specific functionality (for example, it does not know a 55 * default port for a specific scheme). Rather, it only knows the 56 * grammar and basic set of operations that can be applied to a URI. 57 * 58 * 59 */ 60 public class URI implements Serializable 61 { 62 static final long serialVersionUID = 7096266377907081897L; 63 64 /** 65 * MalformedURIExceptions are thrown in the process of building a URI 66 * or setting fields on a URI when an operation would result in an 67 * invalid URI specification. 68 * 69 */ 70 public static class MalformedURIException extends IOException 71 { 72 73 /** 74 * Constructs a <code>MalformedURIException</code> with no specified 75 * detail message. 76 */ 77 public MalformedURIException() 78 { 79 super(); 80 } 81 82 /** 83 * Constructs a <code>MalformedURIException</code> with the 84 * specified detail message. 85 * 86 * @param p_msg the detail message. 87 */ 88 public MalformedURIException(String p_msg) 89 { 90 super(p_msg); 91 } 92 } 93 94 /** reserved characters */ 95 private static final String RESERVED_CHARACTERS = ";/?:@&=+$,"; 96 97 /** 98 * URI punctuation mark characters - these, combined with 99 * alphanumerics, constitute the "unreserved" characters 100 */ 101 private static final String MARK_CHARACTERS = "-_.!~*'() "; 102 103 /** scheme can be composed of alphanumerics and these characters */ 104 private static final String SCHEME_CHARACTERS = "+-."; 105 106 /** 107 * userinfo can be composed of unreserved, escaped and these 108 * characters 109 */ 110 private static final String USERINFO_CHARACTERS = ";:&=+$,"; 111 112 /** Stores the scheme (usually the protocol) for this URI. 113 * @serial */ 114 private String m_scheme = null; 115 116 /** If specified, stores the userinfo for this URI; otherwise null. 117 * @serial */ 118 private String m_userinfo = null; 119 120 /** If specified, stores the host for this URI; otherwise null. 121 * @serial */ 122 private String m_host = null; 123 124 /** If specified, stores the port for this URI; otherwise -1. 125 * @serial */ 126 private int m_port = -1; 127 128 /** If specified, stores the path for this URI; otherwise null. 129 * @serial */ 130 private String m_path = null; 131 132 /** 133 * If specified, stores the query string for this URI; otherwise 134 * null. 135 * @serial 136 */ 137 private String m_queryString = null; 138 139 /** If specified, stores the fragment for this URI; otherwise null. 140 * @serial */ 141 private String m_fragment = null; 142 143 /** Indicate whether in DEBUG mode */ 144 private static boolean DEBUG = false; 145 146 /** 147 * Construct a new and uninitialized URI. 148 */ 149 public URI(){} 150 151 /** 152 * Construct a new URI from another URI. All fields for this URI are 153 * set equal to the fields of the URI passed in. 154 * 155 * @param p_other the URI to copy (cannot be null) 156 */ 157 public URI(URI p_other) 158 { 159 initialize(p_other); 160 } 161 162 /** 163 * Construct a new URI from a URI specification string. If the 164 * specification follows the "generic URI" syntax, (two slashes 165 * following the first colon), the specification will be parsed 166 * accordingly - setting the scheme, userinfo, host,port, path, query 167 * string and fragment fields as necessary. If the specification does 168 * not follow the "generic URI" syntax, the specification is parsed 169 * into a scheme and scheme-specific part (stored as the path) only. 170 * 171 * @param p_uriSpec the URI specification string (cannot be null or 172 * empty) 173 * 174 * @throws MalformedURIException if p_uriSpec violates any syntax 175 * rules 176 */ 177 public URI(String p_uriSpec) throws MalformedURIException 178 { 179 this((URI) null, p_uriSpec); 180 } 181 182 /** 183 * Construct a new URI from a base URI and a URI specification string. 184 * The URI specification string may be a relative URI. 185 * 186 * @param p_base the base URI (cannot be null if p_uriSpec is null or 187 * empty) 188 * @param p_uriSpec the URI specification string (cannot be null or 189 * empty if p_base is null) 190 * 191 * @throws MalformedURIException if p_uriSpec violates any syntax 192 * rules 193 */ 194 public URI(URI p_base, String p_uriSpec) throws MalformedURIException 195 { 196 initialize(p_base, p_uriSpec); 197 } 198 199 /** 200 * Construct a new URI that does not follow the generic URI syntax. 201 * Only the scheme and scheme-specific part (stored as the path) are 202 * initialized. 203 * 204 * @param p_scheme the URI scheme (cannot be null or empty) 205 * @param p_schemeSpecificPart the scheme-specific part (cannot be 206 * null or empty) 207 * 208 * @throws MalformedURIException if p_scheme violates any 209 * syntax rules 210 */ 211 public URI(String p_scheme, String p_schemeSpecificPart) 212 throws MalformedURIException 213 { 214 215 if (p_scheme == null || p_scheme.trim().length() == 0) 216 { 217 throw new MalformedURIException( 218 "Cannot construct URI with null/empty scheme!"); 219 } 220 221 if (p_schemeSpecificPart == null 222 || p_schemeSpecificPart.trim().length() == 0) 223 { 224 throw new MalformedURIException( 225 "Cannot construct URI with null/empty scheme-specific part!"); 226 } 227 228 setScheme(p_scheme); 229 setPath(p_schemeSpecificPart); 230 } 231 232 /** 233 * Construct a new URI that follows the generic URI syntax from its 234 * component parts. Each component is validated for syntax and some 235 * basic semantic checks are performed as well. See the individual 236 * setter methods for specifics. 237 * 238 * @param p_scheme the URI scheme (cannot be null or empty) 239 * @param p_host the hostname or IPv4 address for the URI 240 * @param p_path the URI path - if the path contains '?' or '#', 241 * then the query string and/or fragment will be 242 * set from the path; however, if the query and 243 * fragment are specified both in the path and as 244 * separate parameters, an exception is thrown 245 * @param p_queryString the URI query string (cannot be specified 246 * if path is null) 247 * @param p_fragment the URI fragment (cannot be specified if path 248 * is null) 249 * 250 * @throws MalformedURIException if any of the parameters violates 251 * syntax rules or semantic rules 252 */ 253 public URI(String p_scheme, String p_host, String p_path, String p_queryString, String p_fragment) 254 throws MalformedURIException 255 { 256 this(p_scheme, null, p_host, -1, p_path, p_queryString, p_fragment); 257 } 258 259 /** 260 * Construct a new URI that follows the generic URI syntax from its 261 * component parts. Each component is validated for syntax and some 262 * basic semantic checks are performed as well. See the individual 263 * setter methods for specifics. 264 * 265 * @param p_scheme the URI scheme (cannot be null or empty) 266 * @param p_userinfo the URI userinfo (cannot be specified if host 267 * is null) 268 * @param p_host the hostname or IPv4 address for the URI 269 * @param p_port the URI port (may be -1 for "unspecified"; cannot 270 * be specified if host is null) 271 * @param p_path the URI path - if the path contains '?' or '#', 272 * then the query string and/or fragment will be 273 * set from the path; however, if the query and 274 * fragment are specified both in the path and as 275 * separate parameters, an exception is thrown 276 * @param p_queryString the URI query string (cannot be specified 277 * if path is null) 278 * @param p_fragment the URI fragment (cannot be specified if path 279 * is null) 280 * 281 * @throws MalformedURIException if any of the parameters violates 282 * syntax rules or semantic rules 283 */ 284 public URI(String p_scheme, String p_userinfo, String p_host, int p_port, String p_path, String p_queryString, String p_fragment) 285 throws MalformedURIException 286 { 287 288 if (p_scheme == null || p_scheme.trim().length() == 0) 289 { 290 throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_SCHEME_REQUIRED, null)); //"Scheme is required!"); 291 } 292 293 if (p_host == null) 294 { 295 if (p_userinfo != null) 296 { 297 throw new MalformedURIException( 298 XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_USERINFO_IF_NO_HOST, null)); //"Userinfo may not be specified if host is not specified!"); 299 } 300 301 if (p_port != -1) 302 { 303 throw new MalformedURIException( 304 XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_PORT_IF_NO_HOST, null)); //"Port may not be specified if host is not specified!"); 305 } 306 } 307 308 if (p_path != null) 309 { 310 if (p_path.indexOf('?') != -1 && p_queryString != null) 311 { 312 throw new MalformedURIException( 313 XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_QUERY_STRING_IN_PATH, null)); //"Query string cannot be specified in path and query string!"); 314 } 315 316 if (p_path.indexOf('#') != -1 && p_fragment != null) 317 { 318 throw new MalformedURIException( 319 XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_FRAGMENT_STRING_IN_PATH, null)); //"Fragment cannot be specified in both the path and fragment!"); 320 } 321 } 322 323 setScheme(p_scheme); 324 setHost(p_host); 325 setPort(p_port); 326 setUserinfo(p_userinfo); 327 setPath(p_path); 328 setQueryString(p_queryString); 329 setFragment(p_fragment); 330 } 331 332 /** 333 * Initialize all fields of this URI from another URI. 334 * 335 * @param p_other the URI to copy (cannot be null) 336 */ 337 private void initialize(URI p_other) 338 { 339 340 m_scheme = p_other.getScheme(); 341 m_userinfo = p_other.getUserinfo(); 342 m_host = p_other.getHost(); 343 m_port = p_other.getPort(); 344 m_path = p_other.getPath(); 345 m_queryString = p_other.getQueryString(); 346 m_fragment = p_other.getFragment(); 347 } 348 349 /** 350 * Initializes this URI from a base URI and a URI specification string. 351 * See RFC 2396 Section 4 and Appendix B for specifications on parsing 352 * the URI and Section 5 for specifications on resolving relative URIs 353 * and relative paths. 354 * 355 * @param p_base the base URI (may be null if p_uriSpec is an absolute 356 * URI) 357 * @param p_uriSpec the URI spec string which may be an absolute or 358 * relative URI (can only be null/empty if p_base 359 * is not null) 360 * 361 * @throws MalformedURIException if p_base is null and p_uriSpec 362 * is not an absolute URI or if 363 * p_uriSpec violates syntax rules 364 */ 365 private void initialize(URI p_base, String p_uriSpec) 366 throws MalformedURIException 367 { 368 369 if (p_base == null 370 && (p_uriSpec == null || p_uriSpec.trim().length() == 0)) 371 { 372 throw new MalformedURIException( 373 XMLMessages.createXMLMessage(XMLErrorResources.ER_CANNOT_INIT_URI_EMPTY_PARMS, null)); //"Cannot initialize URI with empty parameters."); 374 } 375 376 // just make a copy of the base if spec is empty 377 if (p_uriSpec == null || p_uriSpec.trim().length() == 0) 378 { 379 initialize(p_base); 380 381 return; 382 } 383 384 String uriSpec = p_uriSpec.trim(); 385 int uriSpecLen = uriSpec.length(); 386 int index = 0; 387 388 // check for scheme 389 int colonIndex = uriSpec.indexOf(':'); 390 if (colonIndex < 0) 391 { 392 if (p_base == null) 393 { 394 throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_SCHEME_IN_URI, new Object[]{uriSpec})); //"No scheme found in URI: "+uriSpec); 395 } 396 } 397 else 398 { 399 initializeScheme(uriSpec); 400 uriSpec = uriSpec.substring(colonIndex+1); 401 // This is a fix for XALANJ-2059. 402 if(m_scheme != null && p_base != null) 403 { 404 // a) If <uriSpec> starts with a slash (/), it means <uriSpec> is absolute 405 // and p_base can be ignored. 406 // For example, 407 // uriSpec = file:/myDIR/myXSLFile.xsl 408 // p_base = file:/myWork/ 409 // 410 // Here, uriSpec has absolute path after scheme file and : 411 // Hence p_base can be ignored. 412 // 413 // b) Similarily, according to RFC 2396, uri is resolved for <uriSpec> relative to <p_base> 414 // if scheme in <uriSpec> is same as scheme in <p_base>, else p_base can be ignored. 415 // 416 // c) if <p_base> is not hierarchical, it can be ignored. 417 // 418 if(uriSpec.startsWith("/") || !m_scheme.equals(p_base.m_scheme) || !p_base.getSchemeSpecificPart().startsWith("/")) 419 { 420 p_base = null; 421 } 422 } 423 // Fix for XALANJ-2059 424 uriSpecLen = uriSpec.length(); 425 } 426 427 // two slashes means generic URI syntax, so we get the authority 428 if (uriSpec.startsWith("//")) 429 { 430 index += 2; 431 432 int startPos = index; 433 434 // get authority - everything up to path, query or fragment 435 char testChar = '\0'; 436 437 while (index < uriSpecLen) 438 { 439 testChar = uriSpec.charAt(index); 440 441 if (testChar == '/' || testChar == '?' || testChar == '#') 442 { 443 break; 444 } 445 446 index++; 447 } 448 449 // if we found authority, parse it out, otherwise we set the 450 // host to empty string 451 if (index > startPos) 452 { 453 initializeAuthority(uriSpec.substring(startPos, index)); 454 } 455 else 456 { 457 m_host = ""; 458 } 459 } 460 461 initializePath(uriSpec.substring(index)); 462 463 // Resolve relative URI to base URI - see RFC 2396 Section 5.2 464 // In some cases, it might make more sense to throw an exception 465 // (when scheme is specified is the string spec and the base URI 466 // is also specified, for example), but we're just following the 467 // RFC specifications 468 if (p_base != null) 469 { 470 471 // check to see if this is the current doc - RFC 2396 5.2 #2 472 // note that this is slightly different from the RFC spec in that 473 // we don't include the check for query string being null 474 // - this handles cases where the urispec is just a query 475 // string or a fragment (e.g. "?y" or "#s") - 476 // see <http://www.ics.uci.edu/~fielding/url/test1.html> which 477 // identified this as a bug in the RFC 478 if (m_path.length() == 0 && m_scheme == null && m_host == null) 479 { 480 m_scheme = p_base.getScheme(); 481 m_userinfo = p_base.getUserinfo(); 482 m_host = p_base.getHost(); 483 m_port = p_base.getPort(); 484 m_path = p_base.getPath(); 485 486 if (m_queryString == null) 487 { 488 m_queryString = p_base.getQueryString(); 489 } 490 491 return; 492 } 493 494 // check for scheme - RFC 2396 5.2 #3 495 // if we found a scheme, it means absolute URI, so we're done 496 if (m_scheme == null) 497 { 498 m_scheme = p_base.getScheme(); 499 } 500 501 // check for authority - RFC 2396 5.2 #4 502 // if we found a host, then we've got a network path, so we're done 503 if (m_host == null) 504 { 505 m_userinfo = p_base.getUserinfo(); 506 m_host = p_base.getHost(); 507 m_port = p_base.getPort(); 508 } 509 else 510 { 511 return; 512 } 513 514 // check for absolute path - RFC 2396 5.2 #5 515 if (m_path.length() > 0 && m_path.startsWith("/")) 516 { 517 return; 518 } 519 520 // if we get to this point, we need to resolve relative path 521 // RFC 2396 5.2 #6 522 String path = new String(); 523 String basePath = p_base.getPath(); 524 525 // 6a - get all but the last segment of the base URI path 526 if (basePath != null) 527 { 528 int lastSlash = basePath.lastIndexOf('/'); 529 530 if (lastSlash != -1) 531 { 532 path = basePath.substring(0, lastSlash + 1); 533 } 534 } 535 536 // 6b - append the relative URI path 537 path = path.concat(m_path); 538 539 // 6c - remove all "./" where "." is a complete path segment 540 index = -1; 541 542 while ((index = path.indexOf("/./")) != -1) 543 { 544 path = path.substring(0, index + 1).concat(path.substring(index + 3)); 545 } 546 547 // 6d - remove "." if path ends with "." as a complete path segment 548 if (path.endsWith("/.")) 549 { 550 path = path.substring(0, path.length() - 1); 551 } 552 553 // 6e - remove all "<segment>/../" where "<segment>" is a complete 554 // path segment not equal to ".." 555 index = -1; 556 557 int segIndex = -1; 558 String tempString = null; 559 560 while ((index = path.indexOf("/../")) > 0) 561 { 562 tempString = path.substring(0, path.indexOf("/../")); 563 segIndex = tempString.lastIndexOf('/'); 564 565 if (segIndex != -1) 566 { 567 if (!tempString.substring(segIndex++).equals("..")) 568 { 569 path = path.substring(0, segIndex).concat(path.substring(index 570 + 4)); 571 } 572 } 573 } 574 575 // 6f - remove ending "<segment>/.." where "<segment>" is a 576 // complete path segment 577 if (path.endsWith("/..")) 578 { 579 tempString = path.substring(0, path.length() - 3); 580 segIndex = tempString.lastIndexOf('/'); 581 582 if (segIndex != -1) 583 { 584 path = path.substring(0, segIndex + 1); 585 } 586 } 587 588 m_path = path; 589 } 590 } 591 592 /** 593 * Initialize the scheme for this URI from a URI string spec. 594 * 595 * @param p_uriSpec the URI specification (cannot be null) 596 * 597 * @throws MalformedURIException if URI does not have a conformant 598 * scheme 599 */ 600 private void initializeScheme(String p_uriSpec) throws MalformedURIException 601 { 602 603 int uriSpecLen = p_uriSpec.length(); 604 int index = 0; 605 String scheme = null; 606 char testChar = '\0'; 607 608 while (index < uriSpecLen) 609 { 610 testChar = p_uriSpec.charAt(index); 611 612 if (testChar == ':' || testChar == '/' || testChar == '?' 613 || testChar == '#') 614 { 615 break; 616 } 617 618 index++; 619 } 620 621 scheme = p_uriSpec.substring(0, index); 622 623 if (scheme.length() == 0) 624 { 625 throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_NO_SCHEME_INURI, null)); //"No scheme found in URI."); 626 } 627 else 628 { 629 setScheme(scheme); 630 } 631 } 632 633 /** 634 * Initialize the authority (userinfo, host and port) for this 635 * URI from a URI string spec. 636 * 637 * @param p_uriSpec the URI specification (cannot be null) 638 * 639 * @throws MalformedURIException if p_uriSpec violates syntax rules 640 */ 641 private void initializeAuthority(String p_uriSpec) 642 throws MalformedURIException 643 { 644 645 int index = 0; 646 int start = 0; 647 int end = p_uriSpec.length(); 648 char testChar = '\0'; 649 String userinfo = null; 650 651 // userinfo is everything up @ 652 if (p_uriSpec.indexOf('@', start) != -1) 653 { 654 while (index < end) 655 { 656 testChar = p_uriSpec.charAt(index); 657 658 if (testChar == '@') 659 { 660 break; 661 } 662 663 index++; 664 } 665 666 userinfo = p_uriSpec.substring(start, index); 667 668 index++; 669 } 670 671 // host is everything up to ':' 672 String host = null; 673 674 start = index; 675 676 while (index < end) 677 { 678 testChar = p_uriSpec.charAt(index); 679 680 if (testChar == ':') 681 { 682 break; 683 } 684 685 index++; 686 } 687 688 host = p_uriSpec.substring(start, index); 689 690 int port = -1; 691 692 if (host.length() > 0) 693 { 694 695 // port 696 if (testChar == ':') 697 { 698 index++; 699 700 start = index; 701 702 while (index < end) 703 { 704 index++; 705 } 706 707 String portStr = p_uriSpec.substring(start, index); 708 709 if (portStr.length() > 0) 710 { 711 for (int i = 0; i < portStr.length(); i++) 712 { 713 if (!isDigit(portStr.charAt(i))) 714 { 715 throw new MalformedURIException( 716 portStr + " is invalid. Port should only contain digits!"); 717 } 718 } 719 720 try 721 { 722 port = Integer.parseInt(portStr); 723 } 724 catch (NumberFormatException nfe) 725 { 726 727 // can't happen 728 } 729 } 730 } 731 } 732 733 setHost(host); 734 setPort(port); 735 setUserinfo(userinfo); 736 } 737 738 /** 739 * Initialize the path for this URI from a URI string spec. 740 * 741 * @param p_uriSpec the URI specification (cannot be null) 742 * 743 * @throws MalformedURIException if p_uriSpec violates syntax rules 744 */ 745 private void initializePath(String p_uriSpec) throws MalformedURIException 746 { 747 748 if (p_uriSpec == null) 749 { 750 throw new MalformedURIException( 751 "Cannot initialize path from null string!"); 752 } 753 754 int index = 0; 755 int start = 0; 756 int end = p_uriSpec.length(); 757 char testChar = '\0'; 758 759 // path - everything up to query string or fragment 760 while (index < end) 761 { 762 testChar = p_uriSpec.charAt(index); 763 764 if (testChar == '?' || testChar == '#') 765 { 766 break; 767 } 768 769 // check for valid escape sequence 770 if (testChar == '%') 771 { 772 if (index + 2 >= end ||!isHex(p_uriSpec.charAt(index + 1)) 773 ||!isHex(p_uriSpec.charAt(index + 2))) 774 { 775 throw new MalformedURIException( 776 XMLMessages.createXMLMessage(XMLErrorResources.ER_PATH_CONTAINS_INVALID_ESCAPE_SEQUENCE, null)); //"Path contains invalid escape sequence!"); 777 } 778 } 779 else if (!isReservedCharacter(testChar) 780 &&!isUnreservedCharacter(testChar)) 781 { 782 if ('\\' != testChar) 783 throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_PATH_INVALID_CHAR, new Object[]{String.valueOf(testChar)})); //"Path contains invalid character: " 784 //+ testChar); 785 } 786 787 index++; 788 } 789 790 m_path = p_uriSpec.substring(start, index); 791 792 // query - starts with ? and up to fragment or end 793 if (testChar == '?') 794 { 795 index++; 796 797 start = index; 798 799 while (index < end) 800 { 801 testChar = p_uriSpec.charAt(index); 802 803 if (testChar == '#') 804 { 805 break; 806 } 807 808 if (testChar == '%') 809 { 810 if (index + 2 >= end ||!isHex(p_uriSpec.charAt(index + 1)) 811 ||!isHex(p_uriSpec.charAt(index + 2))) 812 { 813 throw new MalformedURIException( 814 "Query string contains invalid escape sequence!"); 815 } 816 } 817 else if (!isReservedCharacter(testChar) 818 &&!isUnreservedCharacter(testChar)) 819 { 820 throw new MalformedURIException( 821 "Query string contains invalid character:" + testChar); 822 } 823 824 index++; 825 } 826 827 m_queryString = p_uriSpec.substring(start, index); 828 } 829 830 // fragment - starts with # 831 if (testChar == '#') 832 { 833 index++; 834 835 start = index; 836 837 while (index < end) 838 { 839 testChar = p_uriSpec.charAt(index); 840 841 if (testChar == '%') 842 { 843 if (index + 2 >= end ||!isHex(p_uriSpec.charAt(index + 1)) 844 ||!isHex(p_uriSpec.charAt(index + 2))) 845 { 846 throw new MalformedURIException( 847 "Fragment contains invalid escape sequence!"); 848 } 849 } 850 else if (!isReservedCharacter(testChar) 851 &&!isUnreservedCharacter(testChar)) 852 { 853 throw new MalformedURIException( 854 "Fragment contains invalid character:" + testChar); 855 } 856 857 index++; 858 } 859 860 m_fragment = p_uriSpec.substring(start, index); 861 } 862 } 863 864 /** 865 * Get the scheme for this URI. 866 * 867 * @return the scheme for this URI 868 */ 869 public String getScheme() 870 { 871 return m_scheme; 872 } 873 874 /** 875 * Get the scheme-specific part for this URI (everything following the 876 * scheme and the first colon). See RFC 2396 Section 5.2 for spec. 877 * 878 * @return the scheme-specific part for this URI 879 */ 880 public String getSchemeSpecificPart() 881 { 882 883 StringBuffer schemespec = new StringBuffer(); 884 885 if (m_userinfo != null || m_host != null || m_port != -1) 886 { 887 schemespec.append("//"); 888 } 889 890 if (m_userinfo != null) 891 { 892 schemespec.append(m_userinfo); 893 schemespec.append('@'); 894 } 895 896 if (m_host != null) 897 { 898 schemespec.append(m_host); 899 } 900 901 if (m_port != -1) 902 { 903 schemespec.append(':'); 904 schemespec.append(m_port); 905 } 906 907 if (m_path != null) 908 { 909 schemespec.append((m_path)); 910 } 911 912 if (m_queryString != null) 913 { 914 schemespec.append('?'); 915 schemespec.append(m_queryString); 916 } 917 918 if (m_fragment != null) 919 { 920 schemespec.append('#'); 921 schemespec.append(m_fragment); 922 } 923 924 return schemespec.toString(); 925 } 926 927 /** 928 * Get the userinfo for this URI. 929 * 930 * @return the userinfo for this URI (null if not specified). 931 */ 932 public String getUserinfo() 933 { 934 return m_userinfo; 935 } 936 937 /** 938 * Get the host for this URI. 939 * 940 * @return the host for this URI (null if not specified). 941 */ 942 public String getHost() 943 { 944 return m_host; 945 } 946 947 /** 948 * Get the port for this URI. 949 * 950 * @return the port for this URI (-1 if not specified). 951 */ 952 public int getPort() 953 { 954 return m_port; 955 } 956 957 /** 958 * Get the path for this URI (optionally with the query string and 959 * fragment). 960 * 961 * @param p_includeQueryString if true (and query string is not null), 962 * then a "?" followed by the query string 963 * will be appended 964 * @param p_includeFragment if true (and fragment is not null), 965 * then a "#" followed by the fragment 966 * will be appended 967 * 968 * @return the path for this URI possibly including the query string 969 * and fragment 970 */ 971 public String getPath(boolean p_includeQueryString, 972 boolean p_includeFragment) 973 { 974 975 StringBuffer pathString = new StringBuffer(m_path); 976 977 if (p_includeQueryString && m_queryString != null) 978 { 979 pathString.append('?'); 980 pathString.append(m_queryString); 981 } 982 983 if (p_includeFragment && m_fragment != null) 984 { 985 pathString.append('#'); 986 pathString.append(m_fragment); 987 } 988 989 return pathString.toString(); 990 } 991 992 /** 993 * Get the path for this URI. Note that the value returned is the path 994 * only and does not include the query string or fragment. 995 * 996 * @return the path for this URI. 997 */ 998 public String getPath() 999 { 1000 return m_path; 1001 } 1002 1003 /** 1004 * Get the query string for this URI. 1005 * 1006 * @return the query string for this URI. Null is returned if there 1007 * was no "?" in the URI spec, empty string if there was a 1008 * "?" but no query string following it. 1009 */ 1010 public String getQueryString() 1011 { 1012 return m_queryString; 1013 } 1014 1015 /** 1016 * Get the fragment for this URI. 1017 * 1018 * @return the fragment for this URI. Null is returned if there 1019 * was no "#" in the URI spec, empty string if there was a 1020 * "#" but no fragment following it. 1021 */ 1022 public String getFragment() 1023 { 1024 return m_fragment; 1025 } 1026 1027 /** 1028 * Set the scheme for this URI. The scheme is converted to lowercase 1029 * before it is set. 1030 * 1031 * @param p_scheme the scheme for this URI (cannot be null) 1032 * 1033 * @throws MalformedURIException if p_scheme is not a conformant 1034 * scheme name 1035 */ 1036 public void setScheme(String p_scheme) throws MalformedURIException 1037 { 1038 1039 if (p_scheme == null) 1040 { 1041 throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_SCHEME_FROM_NULL_STRING, null)); //"Cannot set scheme from null string!"); 1042 } 1043 1044 if (!isConformantSchemeName(p_scheme)) 1045 { 1046 throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_SCHEME_NOT_CONFORMANT, null)); //"The scheme is not conformant."); 1047 } 1048 1049 m_scheme = p_scheme.toLowerCase(); 1050 } 1051 1052 /** 1053 * Set the userinfo for this URI. If a non-null value is passed in and 1054 * the host value is null, then an exception is thrown. 1055 * 1056 * @param p_userinfo the userinfo for this URI 1057 * 1058 * @throws MalformedURIException if p_userinfo contains invalid 1059 * characters 1060 */ 1061 public void setUserinfo(String p_userinfo) throws MalformedURIException 1062 { 1063 1064 if (p_userinfo == null) 1065 { 1066 m_userinfo = null; 1067 } 1068 else 1069 { 1070 if (m_host == null) 1071 { 1072 throw new MalformedURIException( 1073 "Userinfo cannot be set when host is null!"); 1074 } 1075 1076 // userinfo can contain alphanumerics, mark characters, escaped 1077 // and ';',':','&','=','+','$',',' 1078 int index = 0; 1079 int end = p_userinfo.length(); 1080 char testChar = '\0'; 1081 1082 while (index < end) 1083 { 1084 testChar = p_userinfo.charAt(index); 1085 1086 if (testChar == '%') 1087 { 1088 if (index + 2 >= end ||!isHex(p_userinfo.charAt(index + 1)) 1089 ||!isHex(p_userinfo.charAt(index + 2))) 1090 { 1091 throw new MalformedURIException( 1092 "Userinfo contains invalid escape sequence!"); 1093 } 1094 } 1095 else if (!isUnreservedCharacter(testChar) 1096 && USERINFO_CHARACTERS.indexOf(testChar) == -1) 1097 { 1098 throw new MalformedURIException( 1099 "Userinfo contains invalid character:" + testChar); 1100 } 1101 1102 index++; 1103 } 1104 } 1105 1106 m_userinfo = p_userinfo; 1107 } 1108 1109 /** 1110 * Set the host for this URI. If null is passed in, the userinfo 1111 * field is also set to null and the port is set to -1. 1112 * 1113 * @param p_host the host for this URI 1114 * 1115 * @throws MalformedURIException if p_host is not a valid IP 1116 * address or DNS hostname. 1117 */ 1118 public void setHost(String p_host) throws MalformedURIException 1119 { 1120 1121 if (p_host == null || p_host.trim().length() == 0) 1122 { 1123 m_host = p_host; 1124 m_userinfo = null; 1125 m_port = -1; 1126 } 1127 else if (!isWellFormedAddress(p_host)) 1128 { 1129 throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_HOST_ADDRESS_NOT_WELLFORMED, null)); //"Host is not a well formed address!"); 1130 } 1131 1132 m_host = p_host; 1133 } 1134 1135 /** 1136 * Set the port for this URI. -1 is used to indicate that the port is 1137 * not specified, otherwise valid port numbers are between 0 and 65535. 1138 * If a valid port number is passed in and the host field is null, 1139 * an exception is thrown. 1140 * 1141 * @param p_port the port number for this URI 1142 * 1143 * @throws MalformedURIException if p_port is not -1 and not a 1144 * valid port number 1145 */ 1146 public void setPort(int p_port) throws MalformedURIException 1147 { 1148 1149 if (p_port >= 0 && p_port <= 65535) 1150 { 1151 if (m_host == null) 1152 { 1153 throw new MalformedURIException( 1154 XMLMessages.createXMLMessage(XMLErrorResources.ER_PORT_WHEN_HOST_NULL, null)); //"Port cannot be set when host is null!"); 1155 } 1156 } 1157 else if (p_port != -1) 1158 { 1159 throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_INVALID_PORT, null)); //"Invalid port number!"); 1160 } 1161 1162 m_port = p_port; 1163 } 1164 1165 /** 1166 * Set the path for this URI. If the supplied path is null, then the 1167 * query string and fragment are set to null as well. If the supplied 1168 * path includes a query string and/or fragment, these fields will be 1169 * parsed and set as well. Note that, for URIs following the "generic 1170 * URI" syntax, the path specified should start with a slash. 1171 * For URIs that do not follow the generic URI syntax, this method 1172 * sets the scheme-specific part. 1173 * 1174 * @param p_path the path for this URI (may be null) 1175 * 1176 * @throws MalformedURIException if p_path contains invalid 1177 * characters 1178 */ 1179 public void setPath(String p_path) throws MalformedURIException 1180 { 1181 1182 if (p_path == null) 1183 { 1184 m_path = null; 1185 m_queryString = null; 1186 m_fragment = null; 1187 } 1188 else 1189 { 1190 initializePath(p_path); 1191 } 1192 } 1193 1194 /** 1195 * Append to the end of the path of this URI. If the current path does 1196 * not end in a slash and the path to be appended does not begin with 1197 * a slash, a slash will be appended to the current path before the 1198 * new segment is added. Also, if the current path ends in a slash 1199 * and the new segment begins with a slash, the extra slash will be 1200 * removed before the new segment is appended. 1201 * 1202 * @param p_addToPath the new segment to be added to the current path 1203 * 1204 * @throws MalformedURIException if p_addToPath contains syntax 1205 * errors 1206 */ 1207 public void appendPath(String p_addToPath) throws MalformedURIException 1208 { 1209 1210 if (p_addToPath == null || p_addToPath.trim().length() == 0) 1211 { 1212 return; 1213 } 1214 1215 if (!isURIString(p_addToPath)) 1216 { 1217 throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_PATH_INVALID_CHAR, new Object[]{p_addToPath})); //"Path contains invalid character!"); 1218 } 1219 1220 if (m_path == null || m_path.trim().length() == 0) 1221 { 1222 if (p_addToPath.startsWith("/")) 1223 { 1224 m_path = p_addToPath; 1225 } 1226 else 1227 { 1228 m_path = "/" + p_addToPath; 1229 } 1230 } 1231 else if (m_path.endsWith("/")) 1232 { 1233 if (p_addToPath.startsWith("/")) 1234 { 1235 m_path = m_path.concat(p_addToPath.substring(1)); 1236 } 1237 else 1238 { 1239 m_path = m_path.concat(p_addToPath); 1240 } 1241 } 1242 else 1243 { 1244 if (p_addToPath.startsWith("/")) 1245 { 1246 m_path = m_path.concat(p_addToPath); 1247 } 1248 else 1249 { 1250 m_path = m_path.concat("/" + p_addToPath); 1251 } 1252 } 1253 } 1254 1255 /** 1256 * Set the query string for this URI. A non-null value is valid only 1257 * if this is an URI conforming to the generic URI syntax and 1258 * the path value is not null. 1259 * 1260 * @param p_queryString the query string for this URI 1261 * 1262 * @throws MalformedURIException if p_queryString is not null and this 1263 * URI does not conform to the generic 1264 * URI syntax or if the path is null 1265 */ 1266 public void setQueryString(String p_queryString) 1267 throws MalformedURIException 1268 { 1269 1270 if (p_queryString == null) 1271 { 1272 m_queryString = null; 1273 } 1274 else if (!isGenericURI()) 1275 { 1276 throw new MalformedURIException( 1277 "Query string can only be set for a generic URI!"); 1278 } 1279 else if (getPath() == null) 1280 { 1281 throw new MalformedURIException( 1282 "Query string cannot be set when path is null!"); 1283 } 1284 else if (!isURIString(p_queryString)) 1285 { 1286 throw new MalformedURIException( 1287 "Query string contains invalid character!"); 1288 } 1289 else 1290 { 1291 m_queryString = p_queryString; 1292 } 1293 } 1294 1295 /** 1296 * Set the fragment for this URI. A non-null value is valid only 1297 * if this is a URI conforming to the generic URI syntax and 1298 * the path value is not null. 1299 * 1300 * @param p_fragment the fragment for this URI 1301 * 1302 * @throws MalformedURIException if p_fragment is not null and this 1303 * URI does not conform to the generic 1304 * URI syntax or if the path is null 1305 */ 1306 public void setFragment(String p_fragment) throws MalformedURIException 1307 { 1308 1309 if (p_fragment == null) 1310 { 1311 m_fragment = null; 1312 } 1313 else if (!isGenericURI()) 1314 { 1315 throw new MalformedURIException( 1316 XMLMessages.createXMLMessage(XMLErrorResources.ER_FRAG_FOR_GENERIC_URI, null)); //"Fragment can only be set for a generic URI!"); 1317 } 1318 else if (getPath() == null) 1319 { 1320 throw new MalformedURIException( 1321 XMLMessages.createXMLMessage(XMLErrorResources.ER_FRAG_WHEN_PATH_NULL, null)); //"Fragment cannot be set when path is null!"); 1322 } 1323 else if (!isURIString(p_fragment)) 1324 { 1325 throw new MalformedURIException(XMLMessages.createXMLMessage(XMLErrorResources.ER_FRAG_INVALID_CHAR, null)); //"Fragment contains invalid character!"); 1326 } 1327 else 1328 { 1329 m_fragment = p_fragment; 1330 } 1331 } 1332 1333 /** 1334 * Determines if the passed-in Object is equivalent to this URI. 1335 * 1336 * @param p_test the Object to test for equality. 1337 * 1338 * @return true if p_test is a URI with all values equal to this 1339 * URI, false otherwise 1340 */ 1341 public boolean equals(Object p_test) 1342 { 1343 1344 if (p_test instanceof URI) 1345 { 1346 URI testURI = (URI) p_test; 1347 1348 if (((m_scheme == null && testURI.m_scheme == null) || (m_scheme != null && testURI.m_scheme != null && m_scheme.equals( 1349 testURI.m_scheme))) && ((m_userinfo == null && testURI.m_userinfo == null) || (m_userinfo != null && testURI.m_userinfo != null && m_userinfo.equals( 1350 testURI.m_userinfo))) && ((m_host == null && testURI.m_host == null) || (m_host != null && testURI.m_host != null && m_host.equals( 1351 testURI.m_host))) && m_port == testURI.m_port && ((m_path == null && testURI.m_path == null) || (m_path != null && testURI.m_path != null && m_path.equals( 1352 testURI.m_path))) && ((m_queryString == null && testURI.m_queryString == null) || (m_queryString != null && testURI.m_queryString != null && m_queryString.equals( 1353 testURI.m_queryString))) && ((m_fragment == null && testURI.m_fragment == null) || (m_fragment != null && testURI.m_fragment != null && m_fragment.equals( 1354 testURI.m_fragment)))) 1355 { 1356 return true; 1357 } 1358 } 1359 1360 return false; 1361 } 1362 1363 /** 1364 * Get the URI as a string specification. See RFC 2396 Section 5.2. 1365 * 1366 * @return the URI string specification 1367 */ 1368 public String toString() 1369 { 1370 1371 StringBuffer uriSpecString = new StringBuffer(); 1372 1373 if (m_scheme != null) 1374 { 1375 uriSpecString.append(m_scheme); 1376 uriSpecString.append(':'); 1377 } 1378 1379 uriSpecString.append(getSchemeSpecificPart()); 1380 1381 return uriSpecString.toString(); 1382 } 1383 1384 /** 1385 * Get the indicator as to whether this URI uses the "generic URI" 1386 * syntax. 1387 * 1388 * @return true if this URI uses the "generic URI" syntax, false 1389 * otherwise 1390 */ 1391 public boolean isGenericURI() 1392 { 1393 1394 // presence of the host (whether valid or empty) means 1395 // double-slashes which means generic uri 1396 return (m_host != null); 1397 } 1398 1399 /** 1400 * Determine whether a scheme conforms to the rules for a scheme name. 1401 * A scheme is conformant if it starts with an alphanumeric, and 1402 * contains only alphanumerics, '+','-' and '.'. 1403 * 1404 * 1405 * @param p_scheme The sheme name to check 1406 * @return true if the scheme is conformant, false otherwise 1407 */ 1408 public static boolean isConformantSchemeName(String p_scheme) 1409 { 1410 1411 if (p_scheme == null || p_scheme.trim().length() == 0) 1412 { 1413 return false; 1414 } 1415 1416 if (!isAlpha(p_scheme.charAt(0))) 1417 { 1418 return false; 1419 } 1420 1421 char testChar; 1422 1423 for (int i = 1; i < p_scheme.length(); i++) 1424 { 1425 testChar = p_scheme.charAt(i); 1426 1427 if (!isAlphanum(testChar) && SCHEME_CHARACTERS.indexOf(testChar) == -1) 1428 { 1429 return false; 1430 } 1431 } 1432 1433 return true; 1434 } 1435 1436 /** 1437 * Determine whether a string is syntactically capable of representing 1438 * a valid IPv4 address or the domain name of a network host. A valid 1439 * IPv4 address consists of four decimal digit groups separated by a 1440 * '.'. A hostname consists of domain labels (each of which must 1441 * begin and end with an alphanumeric but may contain '-') separated 1442 * & by a '.'. See RFC 2396 Section 3.2.2. 1443 * 1444 * 1445 * @param p_address The address string to check 1446 * @return true if the string is a syntactically valid IPv4 address 1447 * or hostname 1448 */ 1449 public static boolean isWellFormedAddress(String p_address) 1450 { 1451 1452 if (p_address == null) 1453 { 1454 return false; 1455 } 1456 1457 String address = p_address.trim(); 1458 int addrLength = address.length(); 1459 1460 if (addrLength == 0 || addrLength > 255) 1461 { 1462 return false; 1463 } 1464 1465 if (address.startsWith(".") || address.startsWith("-")) 1466 { 1467 return false; 1468 } 1469 1470 // rightmost domain label starting with digit indicates IP address 1471 // since top level domain label can only start with an alpha 1472 // see RFC 2396 Section 3.2.2 1473 int index = address.lastIndexOf('.'); 1474 1475 if (address.endsWith(".")) 1476 { 1477 index = address.substring(0, index).lastIndexOf('.'); 1478 } 1479 1480 if (index + 1 < addrLength && isDigit(p_address.charAt(index + 1))) 1481 { 1482 char testChar; 1483 int numDots = 0; 1484 1485 // make sure that 1) we see only digits and dot separators, 2) that 1486 // any dot separator is preceded and followed by a digit and 1487 // 3) that we find 3 dots 1488 for (int i = 0; i < addrLength; i++) 1489 { 1490 testChar = address.charAt(i); 1491 1492 if (testChar == '.') 1493 { 1494 if (!isDigit(address.charAt(i - 1)) 1495 || (i + 1 < addrLength &&!isDigit(address.charAt(i + 1)))) 1496 { 1497 return false; 1498 } 1499 1500 numDots++; 1501 } 1502 else if (!isDigit(testChar)) 1503 { 1504 return false; 1505 } 1506 } 1507 1508 if (numDots != 3) 1509 { 1510 return false; 1511 } 1512 } 1513 else 1514 { 1515 1516 // domain labels can contain alphanumerics and '-" 1517 // but must start and end with an alphanumeric 1518 char testChar; 1519 1520 for (int i = 0; i < addrLength; i++) 1521 { 1522 testChar = address.charAt(i); 1523 1524 if (testChar == '.') 1525 { 1526 if (!isAlphanum(address.charAt(i - 1))) 1527 { 1528 return false; 1529 } 1530 1531 if (i + 1 < addrLength &&!isAlphanum(address.charAt(i + 1))) 1532 { 1533 return false; 1534 } 1535 } 1536 else if (!isAlphanum(testChar) && testChar != '-') 1537 { 1538 return false; 1539 } 1540 } 1541 } 1542 1543 return true; 1544 } 1545 1546 /** 1547 * Determine whether a char is a digit. 1548 * 1549 * 1550 * @param p_char the character to check 1551 * @return true if the char is betweeen '0' and '9', false otherwise 1552 */ 1553 private static boolean isDigit(char p_char) 1554 { 1555 return p_char >= '0' && p_char <= '9'; 1556 } 1557 1558 /** 1559 * Determine whether a character is a hexadecimal character. 1560 * 1561 * 1562 * @param p_char the character to check 1563 * @return true if the char is betweeen '0' and '9', 'a' and 'f' 1564 * or 'A' and 'F', false otherwise 1565 */ 1566 private static boolean isHex(char p_char) 1567 { 1568 return (isDigit(p_char) || (p_char >= 'a' && p_char <= 'f') 1569 || (p_char >= 'A' && p_char <= 'F')); 1570 } 1571 1572 /** 1573 * Determine whether a char is an alphabetic character: a-z or A-Z 1574 * 1575 * 1576 * @param p_char the character to check 1577 * @return true if the char is alphabetic, false otherwise 1578 */ 1579 private static boolean isAlpha(char p_char) 1580 { 1581 return ((p_char >= 'a' && p_char <= 'z') 1582 || (p_char >= 'A' && p_char <= 'Z')); 1583 } 1584 1585 /** 1586 * Determine whether a char is an alphanumeric: 0-9, a-z or A-Z 1587 * 1588 * 1589 * @param p_char the character to check 1590 * @return true if the char is alphanumeric, false otherwise 1591 */ 1592 private static boolean isAlphanum(char p_char) 1593 { 1594 return (isAlpha(p_char) || isDigit(p_char)); 1595 } 1596 1597 /** 1598 * Determine whether a character is a reserved character: 1599 * ';', '/', '?', ':', '@', '&', '=', '+', '$' or ',' 1600 * 1601 * 1602 * @param p_char the character to check 1603 * @return true if the string contains any reserved characters 1604 */ 1605 private static boolean isReservedCharacter(char p_char) 1606 { 1607 return RESERVED_CHARACTERS.indexOf(p_char) != -1; 1608 } 1609 1610 /** 1611 * Determine whether a char is an unreserved character. 1612 * 1613 * 1614 * @param p_char the character to check 1615 * @return true if the char is unreserved, false otherwise 1616 */ 1617 private static boolean isUnreservedCharacter(char p_char) 1618 { 1619 return (isAlphanum(p_char) || MARK_CHARACTERS.indexOf(p_char) != -1); 1620 } 1621 1622 /** 1623 * Determine whether a given string contains only URI characters (also 1624 * called "uric" in RFC 2396). uric consist of all reserved 1625 * characters, unreserved characters and escaped characters. 1626 * 1627 * 1628 * @param p_uric URI string 1629 * @return true if the string is comprised of uric, false otherwise 1630 */ 1631 private static boolean isURIString(String p_uric) 1632 { 1633 1634 if (p_uric == null) 1635 { 1636 return false; 1637 } 1638 1639 int end = p_uric.length(); 1640 char testChar = '\0'; 1641 1642 for (int i = 0; i < end; i++) 1643 { 1644 testChar = p_uric.charAt(i); 1645 1646 if (testChar == '%') 1647 { 1648 if (i + 2 >= end ||!isHex(p_uric.charAt(i + 1)) 1649 ||!isHex(p_uric.charAt(i + 2))) 1650 { 1651 return false; 1652 } 1653 else 1654 { 1655 i += 2; 1656 1657 continue; 1658 } 1659 } 1660 1661 if (isReservedCharacter(testChar) || isUnreservedCharacter(testChar)) 1662 { 1663 continue; 1664 } 1665 else 1666 { 1667 return false; 1668 } 1669 } 1670 1671 return true; 1672 } 1673 } 1674
