Chung-yih Wang | 600c7a4 | 2010-02-08 11:26:23 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Conditions Of Use |
| 3 | * |
| 4 | * This software was developed by employees of the National Institute of |
| 5 | * Standards and Technology (NIST), an agency of the Federal Government. |
| 6 | * Pursuant to title 15 Untied States Code Section 105, works of NIST |
| 7 | * employees are not subject to copyright protection in the United States |
| 8 | * and are considered to be in the public domain. As a result, a formal |
| 9 | * license is not needed to use the software. |
| 10 | * |
| 11 | * This software is provided by NIST as a service and is expressly |
| 12 | * provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED |
| 13 | * OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF |
| 14 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT |
| 15 | * AND DATA ACCURACY. NIST does not warrant or make any representations |
| 16 | * regarding the use of the software or the results thereof, including but |
| 17 | * not limited to the correctness, accuracy, reliability or usefulness of |
| 18 | * the software. |
| 19 | * |
| 20 | * Permission to use this software is contingent upon your acceptance |
| 21 | * of the terms of this agreement |
| 22 | * |
| 23 | * . |
| 24 | * |
| 25 | */ |
| 26 | package gov.nist.javax.sip.parser; |
| 27 | import gov.nist.core.HostNameParser; |
| 28 | import gov.nist.core.HostPort; |
| 29 | import gov.nist.core.NameValue; |
| 30 | import gov.nist.core.NameValueList; |
| 31 | import gov.nist.core.Token; |
| 32 | import gov.nist.javax.sip.address.GenericURI; |
| 33 | import gov.nist.javax.sip.address.SipUri; |
| 34 | import gov.nist.javax.sip.address.TelURLImpl; |
| 35 | import gov.nist.javax.sip.address.TelephoneNumber; |
| 36 | import java.text.ParseException; |
| 37 | |
| 38 | /** |
| 39 | * Parser For SIP and Tel URLs. Other kinds of URL's are handled by the |
| 40 | * J2SE 1.4 URL class. |
| 41 | * @version 1.2 $Revision: 1.27 $ $Date: 2009/10/22 10:27:39 $ |
| 42 | * |
| 43 | * @author M. Ranganathan <br/> |
| 44 | * |
| 45 | * |
| 46 | */ |
| 47 | public class URLParser extends Parser { |
| 48 | |
| 49 | public URLParser(String url) { |
| 50 | this.lexer = new Lexer("sip_urlLexer", url); |
| 51 | } |
| 52 | |
| 53 | // public tag added - issued by Miguel Freitas |
| 54 | public URLParser(Lexer lexer) { |
| 55 | this.lexer = lexer; |
| 56 | this.lexer.selectLexer("sip_urlLexer"); |
| 57 | } |
| 58 | protected static boolean isMark(char next) { |
| 59 | switch (next) { |
| 60 | case '-': |
| 61 | case '_': |
| 62 | case '.': |
| 63 | case '!': |
| 64 | case '~': |
| 65 | case '*': |
| 66 | case '\'': |
| 67 | case '(': |
| 68 | case ')': |
| 69 | return true; |
| 70 | default: |
| 71 | return false; |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | protected static boolean isUnreserved(char next) { |
| 76 | return Lexer.isAlphaDigit(next) || isMark(next); |
| 77 | } |
| 78 | |
| 79 | protected static boolean isReservedNoSlash(char next) { |
| 80 | switch (next) { |
| 81 | case ';': |
| 82 | case '?': |
| 83 | case ':': |
| 84 | case '@': |
| 85 | case '&': |
| 86 | case '+': |
| 87 | case '$': |
| 88 | case ',': |
| 89 | return true; |
| 90 | default: |
| 91 | return false; |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | // Missing '=' bug in character set - discovered by interop testing |
| 96 | // at SIPIT 13 by Bob Johnson and Scott Holben. |
| 97 | // change . to ; by Bruno Konik |
| 98 | protected static boolean isUserUnreserved(char la) { |
| 99 | switch (la) { |
| 100 | case '&': |
| 101 | case '?': |
| 102 | case '+': |
| 103 | case '$': |
| 104 | case '#': |
| 105 | case '/': |
| 106 | case ',': |
| 107 | case ';': |
| 108 | case '=': |
| 109 | return true; |
| 110 | default: |
| 111 | return false; |
| 112 | } |
| 113 | } |
| 114 | |
| 115 | protected String unreserved() throws ParseException { |
| 116 | char next = lexer.lookAhead(0); |
| 117 | if (isUnreserved(next)) { |
| 118 | lexer.consume(1); |
| 119 | return String.valueOf(next); |
| 120 | } else |
| 121 | throw createParseException("unreserved"); |
| 122 | |
| 123 | } |
| 124 | |
| 125 | /** Name or value of a parameter. |
| 126 | */ |
| 127 | protected String paramNameOrValue() throws ParseException { |
| 128 | int startIdx = lexer.getPtr(); |
| 129 | while (lexer.hasMoreChars()) { |
| 130 | char next = lexer.lookAhead(0); |
| 131 | boolean isValidChar = false; |
| 132 | switch (next) { |
| 133 | case '[': |
| 134 | case ']':// JvB: fixed this one |
| 135 | case '/': |
| 136 | case ':': |
| 137 | case '&': |
| 138 | case '+': |
| 139 | case '$': |
| 140 | isValidChar = true; |
| 141 | } |
| 142 | if (isValidChar || isUnreserved(next)) { |
| 143 | lexer.consume(1); |
| 144 | } else if (isEscaped()) { |
| 145 | lexer.consume(3); |
| 146 | } else |
| 147 | break; |
| 148 | } |
| 149 | return lexer.getBuffer().substring(startIdx, lexer.getPtr()); |
| 150 | } |
| 151 | |
| 152 | private NameValue uriParam() throws ParseException { |
| 153 | if (debug) |
| 154 | dbg_enter("uriParam"); |
| 155 | try { |
| 156 | String pvalue = ""; |
| 157 | String pname = paramNameOrValue(); |
| 158 | char next = lexer.lookAhead(0); |
| 159 | boolean isFlagParam = true; |
| 160 | if (next == '=') { |
| 161 | lexer.consume(1); |
| 162 | pvalue = paramNameOrValue(); |
| 163 | isFlagParam = false; |
| 164 | } |
| 165 | if (pname.length() == 0 && |
| 166 | ( pvalue == null || |
| 167 | pvalue.length() == 0)) |
| 168 | return null; |
| 169 | else return new NameValue(pname, pvalue, isFlagParam); |
| 170 | } finally { |
| 171 | if (debug) |
| 172 | dbg_leave("uriParam"); |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | protected static boolean isReserved(char next) { |
| 177 | switch (next) { |
| 178 | case ';': |
| 179 | case '/': |
| 180 | case '?': |
| 181 | case ':': |
| 182 | case '=': // Bug fix by Bruno Konik |
| 183 | case '@': |
| 184 | case '&': |
| 185 | case '+': |
| 186 | case '$': |
| 187 | case ',': |
| 188 | return true; |
| 189 | default: |
| 190 | return false; |
| 191 | } |
| 192 | } |
| 193 | |
| 194 | protected String reserved() throws ParseException { |
| 195 | char next = lexer.lookAhead(0); |
| 196 | if (isReserved(next)) { |
| 197 | lexer.consume(1); |
| 198 | return new StringBuffer().append(next).toString(); |
| 199 | } else |
| 200 | throw createParseException("reserved"); |
| 201 | } |
| 202 | |
| 203 | protected boolean isEscaped() { |
| 204 | try { |
| 205 | return lexer.lookAhead(0) == '%' && |
| 206 | Lexer.isHexDigit(lexer.lookAhead(1)) && |
| 207 | Lexer.isHexDigit(lexer.lookAhead(2)); |
| 208 | } catch (Exception ex) { |
| 209 | return false; |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | protected String escaped() throws ParseException { |
| 214 | if (debug) |
| 215 | dbg_enter("escaped"); |
| 216 | try { |
| 217 | StringBuffer retval = new StringBuffer(); |
| 218 | char next = lexer.lookAhead(0); |
| 219 | char next1 = lexer.lookAhead(1); |
| 220 | char next2 = lexer.lookAhead(2); |
| 221 | if (next == '%' |
| 222 | && Lexer.isHexDigit(next1) |
| 223 | && Lexer.isHexDigit(next2)) { |
| 224 | lexer.consume(3); |
| 225 | retval.append(next); |
| 226 | retval.append(next1); |
| 227 | retval.append(next2); |
| 228 | } else |
| 229 | throw createParseException("escaped"); |
| 230 | return retval.toString(); |
| 231 | } finally { |
| 232 | if (debug) |
| 233 | dbg_leave("escaped"); |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | protected String mark() throws ParseException { |
| 238 | if (debug) |
| 239 | dbg_enter("mark"); |
| 240 | try { |
| 241 | char next = lexer.lookAhead(0); |
| 242 | if (isMark(next)) { |
| 243 | lexer.consume(1); |
| 244 | return new String( new char[]{next} ); |
| 245 | } else |
| 246 | throw createParseException("mark"); |
| 247 | } finally { |
| 248 | if (debug) |
| 249 | dbg_leave("mark"); |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | protected String uric() { |
| 254 | if (debug) |
| 255 | dbg_enter("uric"); |
| 256 | try { |
| 257 | try { |
| 258 | char la = lexer.lookAhead(0); |
| 259 | if (isUnreserved(la)) { |
| 260 | lexer.consume(1); |
| 261 | return Lexer.charAsString(la); |
| 262 | } else if (isReserved(la)) { |
| 263 | lexer.consume(1); |
| 264 | return Lexer.charAsString(la); |
| 265 | } else if (isEscaped()) { |
| 266 | String retval = lexer.charAsString(3); |
| 267 | lexer.consume(3); |
| 268 | return retval; |
| 269 | } else |
| 270 | return null; |
| 271 | } catch (Exception ex) { |
| 272 | return null; |
| 273 | } |
| 274 | } finally { |
| 275 | if (debug) |
| 276 | dbg_leave("uric"); |
| 277 | } |
| 278 | |
| 279 | } |
| 280 | |
| 281 | protected String uricNoSlash() { |
| 282 | if (debug) |
| 283 | dbg_enter("uricNoSlash"); |
| 284 | try { |
| 285 | try { |
| 286 | char la = lexer.lookAhead(0); |
| 287 | if (isEscaped()) { |
| 288 | String retval = lexer.charAsString(3); |
| 289 | lexer.consume(3); |
| 290 | return retval; |
| 291 | } else if (isUnreserved(la)) { |
| 292 | lexer.consume(1); |
| 293 | return Lexer.charAsString(la); |
| 294 | } else if (isReservedNoSlash(la)) { |
| 295 | lexer.consume(1); |
| 296 | return Lexer.charAsString(la); |
| 297 | } else |
| 298 | return null; |
| 299 | } catch (ParseException ex) { |
| 300 | return null; |
| 301 | } |
| 302 | } finally { |
| 303 | if (debug) |
| 304 | dbg_leave("uricNoSlash"); |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | protected String uricString() throws ParseException { |
| 309 | StringBuffer retval = new StringBuffer(); |
| 310 | while (true) { |
| 311 | String next = uric(); |
| 312 | if (next == null) { |
| 313 | char la = lexer.lookAhead(0); |
| 314 | // JvB: allow IPv6 addresses in generic URI strings |
| 315 | // e.g. http://[::1] |
| 316 | if ( la == '[' ) { |
| 317 | HostNameParser hnp = new HostNameParser(this.getLexer()); |
| 318 | HostPort hp = hnp.hostPort( false ); |
| 319 | retval.append(hp.toString()); |
| 320 | continue; |
| 321 | } |
| 322 | break; |
| 323 | } |
| 324 | retval.append(next); |
| 325 | } |
| 326 | return retval.toString(); |
| 327 | } |
| 328 | |
| 329 | /** |
| 330 | * Parse and return a structure for a generic URL. |
| 331 | * Note that non SIP URLs are just stored as a string (not parsed). |
| 332 | * @return URI is a URL structure for a SIP url. |
| 333 | * @throws ParseException if there was a problem parsing. |
| 334 | */ |
| 335 | public GenericURI uriReference( boolean inBrackets ) throws ParseException { |
| 336 | if (debug) |
| 337 | dbg_enter("uriReference"); |
| 338 | GenericURI retval = null; |
| 339 | Token[] tokens = lexer.peekNextToken(2); |
| 340 | Token t1 = (Token) tokens[0]; |
| 341 | Token t2 = (Token) tokens[1]; |
| 342 | try { |
| 343 | |
| 344 | if (t1.getTokenType() == TokenTypes.SIP || |
| 345 | t1.getTokenType() == TokenTypes.SIPS) { |
| 346 | if (t2.getTokenType() == ':') |
| 347 | retval = sipURL( inBrackets ); |
| 348 | else |
| 349 | throw createParseException("Expecting \':\'"); |
| 350 | } else if (t1.getTokenType() == TokenTypes.TEL) { |
| 351 | if (t2.getTokenType() == ':') { |
| 352 | retval = telURL( inBrackets ); |
| 353 | } else |
| 354 | throw createParseException("Expecting \':\'"); |
| 355 | } else { |
| 356 | String urlString = uricString(); |
| 357 | try { |
| 358 | retval = new GenericURI(urlString); |
| 359 | } catch (ParseException ex) { |
| 360 | throw createParseException(ex.getMessage()); |
| 361 | } |
| 362 | } |
| 363 | } finally { |
| 364 | if (debug) |
| 365 | dbg_leave("uriReference"); |
| 366 | } |
| 367 | return retval; |
| 368 | } |
| 369 | |
| 370 | /** |
| 371 | * Parser for the base phone number. |
| 372 | */ |
| 373 | private String base_phone_number() throws ParseException { |
| 374 | StringBuffer s = new StringBuffer(); |
| 375 | |
| 376 | if (debug) |
| 377 | dbg_enter("base_phone_number"); |
| 378 | try { |
| 379 | int lc = 0; |
| 380 | while (lexer.hasMoreChars()) { |
| 381 | char w = lexer.lookAhead(0); |
| 382 | if (Lexer.isDigit(w) |
| 383 | || w == '-' |
| 384 | || w == '.' |
| 385 | || w == '(' |
| 386 | || w == ')') { |
| 387 | lexer.consume(1); |
| 388 | s.append(w); |
| 389 | lc++; |
| 390 | } else if (lc > 0) |
| 391 | break; |
| 392 | else |
| 393 | throw createParseException("unexpected " + w); |
| 394 | } |
| 395 | return s.toString(); |
| 396 | } finally { |
| 397 | if (debug) |
| 398 | dbg_leave("base_phone_number"); |
| 399 | } |
| 400 | |
| 401 | } |
| 402 | |
| 403 | /** |
| 404 | * Parser for the local phone #. |
| 405 | */ |
| 406 | private String local_number() throws ParseException { |
| 407 | StringBuffer s = new StringBuffer(); |
| 408 | if (debug) |
| 409 | dbg_enter("local_number"); |
| 410 | try { |
| 411 | int lc = 0; |
| 412 | while (lexer.hasMoreChars()) { |
| 413 | char la = lexer.lookAhead(0); |
| 414 | if (la == '*' |
| 415 | || la == '#' |
| 416 | || la == '-' |
| 417 | || la == '.' |
| 418 | || la == '(' |
| 419 | || la == ')' |
| 420 | // JvB: allow 'A'..'F', should be uppercase |
| 421 | || Lexer.isHexDigit(la)) { |
| 422 | lexer.consume(1); |
| 423 | s.append(la); |
| 424 | lc++; |
| 425 | } else if (lc > 0) |
| 426 | break; |
| 427 | else |
| 428 | throw createParseException("unexepcted " + la); |
| 429 | } |
| 430 | return s.toString(); |
| 431 | } finally { |
| 432 | if (debug) |
| 433 | dbg_leave("local_number"); |
| 434 | } |
| 435 | |
| 436 | } |
| 437 | |
| 438 | /** |
| 439 | * Parser for telephone subscriber. |
| 440 | * |
| 441 | * @return the parsed telephone number. |
| 442 | */ |
| 443 | public final TelephoneNumber parseTelephoneNumber( boolean inBrackets ) |
| 444 | throws ParseException { |
| 445 | TelephoneNumber tn; |
| 446 | |
| 447 | if (debug) |
| 448 | dbg_enter("telephone_subscriber"); |
| 449 | lexer.selectLexer("charLexer"); |
| 450 | try { |
| 451 | char c = lexer.lookAhead(0); |
| 452 | if (c == '+') |
| 453 | tn = global_phone_number( inBrackets ); |
| 454 | else if ( |
| 455 | Lexer.isHexDigit(c)// see RFC3966 |
| 456 | || c == '#' |
| 457 | || c == '*' |
| 458 | || c == '-' |
| 459 | || c == '.' |
| 460 | || c == '(' |
| 461 | || c == ')' ) { |
| 462 | tn = local_phone_number( inBrackets ); |
| 463 | } else |
| 464 | throw createParseException("unexpected char " + c); |
| 465 | return tn; |
| 466 | } finally { |
| 467 | if (debug) |
| 468 | dbg_leave("telephone_subscriber"); |
| 469 | } |
| 470 | |
| 471 | } |
| 472 | |
| 473 | private final TelephoneNumber global_phone_number( boolean inBrackets ) throws ParseException { |
| 474 | if (debug) |
| 475 | dbg_enter("global_phone_number"); |
| 476 | try { |
| 477 | TelephoneNumber tn = new TelephoneNumber(); |
| 478 | tn.setGlobal(true); |
| 479 | NameValueList nv = null; |
| 480 | this.lexer.match(PLUS); |
| 481 | String b = base_phone_number(); |
| 482 | tn.setPhoneNumber(b); |
| 483 | if (lexer.hasMoreChars()) { |
| 484 | char tok = lexer.lookAhead(0); |
| 485 | if (tok == ';' && inBrackets) { |
| 486 | this.lexer.consume(1); |
| 487 | nv = tel_parameters(); |
| 488 | tn.setParameters(nv); |
| 489 | } |
| 490 | } |
| 491 | return tn; |
| 492 | } finally { |
| 493 | if (debug) |
| 494 | dbg_leave("global_phone_number"); |
| 495 | } |
| 496 | } |
| 497 | |
| 498 | private TelephoneNumber local_phone_number( boolean inBrackets ) throws ParseException { |
| 499 | if (debug) |
| 500 | dbg_enter("local_phone_number"); |
| 501 | TelephoneNumber tn = new TelephoneNumber(); |
| 502 | tn.setGlobal(false); |
| 503 | NameValueList nv = null; |
| 504 | String b = null; |
| 505 | try { |
| 506 | b = local_number(); |
| 507 | tn.setPhoneNumber(b); |
| 508 | if (lexer.hasMoreChars()) { |
| 509 | Token tok = this.lexer.peekNextToken(); |
| 510 | switch (tok.getTokenType()) { |
| 511 | case SEMICOLON: |
| 512 | { |
| 513 | if (inBrackets) { |
| 514 | this.lexer.consume(1); |
| 515 | nv = tel_parameters(); |
| 516 | tn.setParameters(nv); |
| 517 | } |
| 518 | break; |
| 519 | } |
| 520 | default : |
| 521 | { |
| 522 | break; |
| 523 | } |
| 524 | } |
| 525 | } |
| 526 | } finally { |
| 527 | if (debug) |
| 528 | dbg_leave("local_phone_number"); |
| 529 | } |
| 530 | return tn; |
| 531 | } |
| 532 | |
| 533 | private NameValueList tel_parameters() throws ParseException { |
| 534 | NameValueList nvList = new NameValueList(); |
| 535 | |
| 536 | // JvB: Need to handle 'phone-context' specially |
| 537 | // 'isub' (or 'ext') MUST appear first, but we accept any order here |
| 538 | NameValue nv; |
| 539 | while ( true ) { |
| 540 | String pname = paramNameOrValue(); |
| 541 | |
| 542 | // Handle 'phone-context' specially, it may start with '+' |
| 543 | if ( pname.equalsIgnoreCase("phone-context")) { |
| 544 | nv = phone_context(); |
| 545 | } else { |
| 546 | if (lexer.lookAhead(0) == '=') { |
| 547 | lexer.consume(1); |
| 548 | String value = paramNameOrValue(); |
| 549 | nv = new NameValue( pname, value, false ); |
| 550 | } else { |
| 551 | nv = new NameValue( pname, "", true );// flag param |
| 552 | } |
| 553 | } |
| 554 | nvList.set( nv ); |
| 555 | |
| 556 | if ( lexer.lookAhead(0) == ';' ) { |
| 557 | lexer.consume(1); |
| 558 | } else { |
| 559 | return nvList; |
| 560 | } |
| 561 | } |
| 562 | |
| 563 | } |
| 564 | |
| 565 | /** |
| 566 | * Parses the 'phone-context' parameter in tel: URLs |
| 567 | * @throws ParseException |
| 568 | */ |
| 569 | private NameValue phone_context() throws ParseException { |
| 570 | lexer.match('='); |
| 571 | |
| 572 | char la = lexer.lookAhead(0); |
| 573 | Object value; |
| 574 | if (la=='+') {// global-number-digits |
| 575 | lexer.consume(1);// skip '+' |
| 576 | value = "+" + base_phone_number(); |
| 577 | } else if ( Lexer.isAlphaDigit(la) ) { |
| 578 | Token t = lexer.match( Lexer.ID );// more broad than allowed |
| 579 | value = t.getTokenValue(); |
| 580 | } else { |
| 581 | throw new ParseException( "Invalid phone-context:" + la , -1 ); |
| 582 | } |
| 583 | return new NameValue( "phone-context", value, false ); |
| 584 | } |
| 585 | |
| 586 | /** |
| 587 | * Parse and return a structure for a Tel URL. |
| 588 | * @return a parsed tel url structure. |
| 589 | */ |
| 590 | public TelURLImpl telURL( boolean inBrackets ) throws ParseException { |
| 591 | lexer.match(TokenTypes.TEL); |
| 592 | lexer.match(':'); |
| 593 | TelephoneNumber tn = this.parseTelephoneNumber(inBrackets); |
| 594 | TelURLImpl telUrl = new TelURLImpl(); |
| 595 | telUrl.setTelephoneNumber(tn); |
| 596 | return telUrl; |
| 597 | |
| 598 | } |
| 599 | |
| 600 | /** |
| 601 | * Parse and return a structure for a SIP URL. |
| 602 | * @return a URL structure for a SIP url. |
| 603 | * @throws ParseException if there was a problem parsing. |
| 604 | */ |
| 605 | public SipUri sipURL( boolean inBrackets ) throws ParseException { |
| 606 | if (debug) |
| 607 | dbg_enter("sipURL"); |
| 608 | SipUri retval = new SipUri(); |
| 609 | // pmusgrave - handle sips case |
| 610 | Token nextToken = lexer.peekNextToken(); |
| 611 | int sipOrSips = TokenTypes.SIP; |
| 612 | String scheme = TokenNames.SIP; |
| 613 | if ( nextToken.getTokenType() == TokenTypes.SIPS) |
| 614 | { |
| 615 | sipOrSips = TokenTypes.SIPS; |
| 616 | scheme = TokenNames.SIPS; |
| 617 | } |
| 618 | |
| 619 | try { |
| 620 | lexer.match(sipOrSips); |
| 621 | lexer.match(':'); |
| 622 | retval.setScheme(scheme); |
| 623 | int startOfUser = lexer.markInputPosition(); |
| 624 | String userOrHost = user();// Note: user may contain ';', host may not... |
| 625 | String passOrPort = null; |
| 626 | |
| 627 | // name:password or host:port |
| 628 | if ( lexer.lookAhead() == ':' ) { |
| 629 | lexer.consume(1); |
| 630 | passOrPort = password(); |
| 631 | } |
| 632 | |
| 633 | // name@hostPort |
| 634 | if ( lexer.lookAhead() == '@' ) { |
| 635 | lexer.consume(1); |
| 636 | retval.setUser( userOrHost ); |
| 637 | if (passOrPort!=null) retval.setUserPassword( passOrPort ); |
| 638 | } else { |
| 639 | // then userOrHost was a host, backtrack just in case a ';' was eaten... |
| 640 | lexer.rewindInputPosition( startOfUser ); |
| 641 | } |
| 642 | |
| 643 | HostNameParser hnp = new HostNameParser(this.getLexer()); |
| 644 | HostPort hp = hnp.hostPort( false ); |
| 645 | retval.setHostPort(hp); |
| 646 | |
| 647 | lexer.selectLexer("charLexer"); |
| 648 | while (lexer.hasMoreChars()) { |
| 649 | // If the URI is not enclosed in brackets, parameters belong to header |
| 650 | if (lexer.lookAhead(0) != ';' || !inBrackets) |
| 651 | break; |
| 652 | lexer.consume(1); |
| 653 | NameValue parms = uriParam(); |
| 654 | if (parms != null) retval.setUriParameter(parms); |
| 655 | } |
| 656 | |
| 657 | if (lexer.hasMoreChars() && lexer.lookAhead(0) == '?') { |
| 658 | lexer.consume(1); |
| 659 | while (lexer.hasMoreChars()) { |
| 660 | NameValue parms = qheader(); |
| 661 | retval.setQHeader(parms); |
| 662 | if (lexer.hasMoreChars() && lexer.lookAhead(0) != '&') |
| 663 | break; |
| 664 | else |
| 665 | lexer.consume(1); |
| 666 | } |
| 667 | } |
| 668 | return retval; |
Chia-chi Yeh | b23dbfc | 2011-11-23 17:27:05 -0800 | [diff] [blame] | 669 | // BEGIN android-added |
| 670 | } catch (RuntimeException e) { |
| 671 | throw new ParseException("Invalid URL: " + lexer.getBuffer(), -1); |
| 672 | // END android-added |
Chung-yih Wang | 600c7a4 | 2010-02-08 11:26:23 +0800 | [diff] [blame] | 673 | } finally { |
| 674 | if (debug) |
| 675 | dbg_leave("sipURL"); |
| 676 | } |
| 677 | } |
| 678 | |
| 679 | public String peekScheme() throws ParseException { |
| 680 | Token[] tokens = lexer.peekNextToken(1); |
| 681 | if (tokens.length == 0) |
| 682 | return null; |
| 683 | String scheme = ((Token) tokens[0]).getTokenValue(); |
| 684 | return scheme; |
| 685 | } |
| 686 | |
| 687 | /** |
| 688 | * Get a name value for a given query header (ie one that comes |
| 689 | * after the ?). |
| 690 | */ |
| 691 | protected NameValue qheader() throws ParseException { |
| 692 | String name = lexer.getNextToken('='); |
| 693 | lexer.consume(1); |
| 694 | String value = hvalue(); |
| 695 | return new NameValue(name, value, false); |
| 696 | |
| 697 | } |
| 698 | |
| 699 | protected String hvalue() throws ParseException { |
| 700 | StringBuffer retval = new StringBuffer(); |
| 701 | while (lexer.hasMoreChars()) { |
| 702 | char la = lexer.lookAhead(0); |
| 703 | // Look for a character that can terminate a URL. |
| 704 | boolean isValidChar = false; |
| 705 | switch (la) { |
| 706 | case '+': |
| 707 | case '?': |
| 708 | case ':': |
| 709 | case '[': |
| 710 | case ']': |
| 711 | case '/': |
| 712 | case '$': |
| 713 | case '_': |
| 714 | case '-': |
| 715 | case '"': |
| 716 | case '!': |
| 717 | case '~': |
| 718 | case '*': |
| 719 | case '.': |
| 720 | case '(': |
| 721 | case ')': |
| 722 | isValidChar = true; |
| 723 | } |
| 724 | if (isValidChar || Lexer.isAlphaDigit(la)) { |
| 725 | lexer.consume(1); |
| 726 | retval.append(la); |
| 727 | } else if (la == '%') { |
| 728 | retval.append(escaped()); |
| 729 | } else |
| 730 | break; |
| 731 | } |
| 732 | return retval.toString(); |
| 733 | } |
| 734 | |
| 735 | /** |
| 736 | * Scan forward until you hit a terminating character for a URL. |
| 737 | * We do not handle non sip urls in this implementation. |
| 738 | * @return the string that takes us to the end of this URL (i.e. to |
| 739 | * the next delimiter). |
| 740 | */ |
| 741 | protected String urlString() throws ParseException { |
| 742 | StringBuffer retval = new StringBuffer(); |
| 743 | lexer.selectLexer("charLexer"); |
| 744 | |
| 745 | while (lexer.hasMoreChars()) { |
| 746 | char la = lexer.lookAhead(0); |
| 747 | // Look for a character that can terminate a URL. |
| 748 | if (la == ' ' |
| 749 | || la == '\t' |
| 750 | || la == '\n' |
| 751 | || la == '>' |
| 752 | || la == '<') |
| 753 | break; |
| 754 | lexer.consume(0); |
| 755 | retval.append(la); |
| 756 | } |
| 757 | return retval.toString(); |
| 758 | } |
| 759 | |
| 760 | protected String user() throws ParseException { |
| 761 | if (debug) |
| 762 | dbg_enter("user"); |
| 763 | try { |
| 764 | int startIdx = lexer.getPtr(); |
| 765 | while (lexer.hasMoreChars()) { |
| 766 | char la = lexer.lookAhead(0); |
| 767 | if (isUnreserved(la) || isUserUnreserved(la)) { |
| 768 | lexer.consume(1); |
| 769 | } else if (isEscaped()) { |
| 770 | lexer.consume(3); |
| 771 | } else |
| 772 | break; |
| 773 | } |
| 774 | return lexer.getBuffer().substring(startIdx, lexer.getPtr()); |
| 775 | } finally { |
| 776 | if (debug) |
| 777 | dbg_leave("user"); |
| 778 | } |
| 779 | |
| 780 | } |
| 781 | |
| 782 | protected String password() throws ParseException { |
| 783 | int startIdx = lexer.getPtr(); |
| 784 | while (true) { |
| 785 | char la = lexer.lookAhead(0); |
| 786 | boolean isValidChar = false; |
| 787 | switch (la) { |
| 788 | case '&': |
| 789 | case '=': |
| 790 | case '+': |
| 791 | case '$': |
| 792 | case ',': |
| 793 | isValidChar = true; |
| 794 | } |
| 795 | if (isValidChar || isUnreserved(la)) { |
| 796 | lexer.consume(1); |
| 797 | } else if (isEscaped()) { |
| 798 | lexer.consume(3); // bug reported by |
| 799 | // Jeff Haynie |
| 800 | } else |
| 801 | break; |
| 802 | |
| 803 | } |
| 804 | return lexer.getBuffer().substring(startIdx, lexer.getPtr()); |
| 805 | } |
| 806 | |
| 807 | /** |
| 808 | * Default parse method. This method just calls uriReference. |
| 809 | */ |
| 810 | public GenericURI parse() throws ParseException { |
| 811 | return uriReference( true ); |
| 812 | } |
| 813 | |
| 814 | // quick test routine for debugging type assignment |
| 815 | public static void main(String[] args) throws ParseException |
| 816 | { |
| 817 | // quick test for sips parsing |
| 818 | String[] test = { "sip:alice@example.com", |
| 819 | "sips:alice@examples.com" , |
| 820 | "sip:3Zqkv5dajqaaas0tCjCxT0xH2ZEuEMsFl0xoasip%3A%2B3519116786244%40siplab.domain.com@213.0.115.163:7070"}; |
| 821 | |
| 822 | for ( int i = 0; i < test.length; i++) |
| 823 | { |
| 824 | URLParser p = new URLParser(test[i]); |
| 825 | |
| 826 | GenericURI uri = p.parse(); |
| 827 | System.out.println("uri type returned " + uri.getClass().getName()); |
| 828 | System.out.println(test[i] + " is SipUri? " + uri.isSipURI() |
| 829 | + ">" + uri.encode()); |
| 830 | } |
| 831 | } |
| 832 | |
| 833 | /** |
| 834 | |
| 835 | **/ |
| 836 | } |
| 837 | |