Jake Slack | 03928ae | 2014-05-13 18:41:56 -0700 | [diff] [blame] | 1 | // |
| 2 | // ======================================================================== |
| 3 | // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
| 4 | // ------------------------------------------------------------------------ |
| 5 | // All rights reserved. This program and the accompanying materials |
| 6 | // are made available under the terms of the Eclipse Public License v1.0 |
| 7 | // and Apache License v2.0 which accompanies this distribution. |
| 8 | // |
| 9 | // The Eclipse Public License is available at |
| 10 | // http://www.eclipse.org/legal/epl-v10.html |
| 11 | // |
| 12 | // The Apache License v2.0 is available at |
| 13 | // http://www.opensource.org/licenses/apache2.0.php |
| 14 | // |
| 15 | // You may elect to redistribute this code under either of these licenses. |
| 16 | // ======================================================================== |
| 17 | // |
| 18 | |
| 19 | package org.eclipse.jetty.util; |
| 20 | |
| 21 | import java.io.BufferedInputStream; |
| 22 | import java.io.BufferedOutputStream; |
| 23 | import java.io.BufferedReader; |
| 24 | import java.io.ByteArrayInputStream; |
| 25 | import java.io.ByteArrayOutputStream; |
| 26 | import java.io.File; |
| 27 | import java.io.FileInputStream; |
| 28 | import java.io.FileNotFoundException; |
| 29 | import java.io.FileOutputStream; |
| 30 | import java.io.FilterInputStream; |
| 31 | import java.io.IOException; |
| 32 | import java.io.InputStream; |
| 33 | import java.io.InputStreamReader; |
| 34 | import java.io.OutputStream; |
| 35 | import java.lang.reflect.Array; |
| 36 | import java.util.ArrayList; |
| 37 | import java.util.Collection; |
| 38 | import java.util.Collections; |
| 39 | import java.util.HashMap; |
| 40 | import java.util.List; |
| 41 | import java.util.Locale; |
| 42 | import java.util.Map; |
| 43 | import java.util.StringTokenizer; |
| 44 | |
| 45 | import javax.servlet.MultipartConfigElement; |
| 46 | import javax.servlet.ServletException; |
| 47 | import javax.servlet.http.Part; |
| 48 | |
| 49 | import org.eclipse.jetty.util.log.Log; |
| 50 | import org.eclipse.jetty.util.log.Logger; |
| 51 | |
| 52 | |
| 53 | |
| 54 | /** |
| 55 | * MultiPartInputStream |
| 56 | * |
| 57 | * Handle a MultiPart Mime input stream, breaking it up on the boundary into files and strings. |
| 58 | */ |
| 59 | public class MultiPartInputStream |
| 60 | { |
| 61 | private static final Logger LOG = Log.getLogger(MultiPartInputStream.class); |
| 62 | |
| 63 | public static final MultipartConfigElement __DEFAULT_MULTIPART_CONFIG = new MultipartConfigElement(System.getProperty("java.io.tmpdir")); |
| 64 | protected InputStream _in; |
| 65 | protected MultipartConfigElement _config; |
| 66 | protected String _contentType; |
| 67 | protected MultiMap<String> _parts; |
| 68 | protected File _tmpDir; |
| 69 | protected File _contextTmpDir; |
| 70 | protected boolean _deleteOnExit; |
| 71 | |
| 72 | |
| 73 | |
| 74 | public class MultiPart implements Part |
| 75 | { |
| 76 | protected String _name; |
| 77 | protected String _filename; |
| 78 | protected File _file; |
| 79 | protected OutputStream _out; |
| 80 | protected ByteArrayOutputStream2 _bout; |
| 81 | protected String _contentType; |
| 82 | protected MultiMap<String> _headers; |
| 83 | protected long _size = 0; |
| 84 | protected boolean _temporary = true; |
| 85 | |
| 86 | public MultiPart (String name, String filename) |
| 87 | throws IOException |
| 88 | { |
| 89 | _name = name; |
| 90 | _filename = filename; |
| 91 | } |
| 92 | |
| 93 | protected void setContentType (String contentType) |
| 94 | { |
| 95 | _contentType = contentType; |
| 96 | } |
| 97 | |
| 98 | |
| 99 | protected void open() |
| 100 | throws IOException |
| 101 | { |
| 102 | //We will either be writing to a file, if it has a filename on the content-disposition |
| 103 | //and otherwise a byte-array-input-stream, OR if we exceed the getFileSizeThreshold, we |
| 104 | //will need to change to write to a file. |
| 105 | if (_filename != null && _filename.trim().length() > 0) |
| 106 | { |
| 107 | createFile(); |
| 108 | } |
| 109 | else |
| 110 | { |
| 111 | //Write to a buffer in memory until we discover we've exceed the |
| 112 | //MultipartConfig fileSizeThreshold |
| 113 | _out = _bout= new ByteArrayOutputStream2(); |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | protected void close() |
| 118 | throws IOException |
| 119 | { |
| 120 | _out.close(); |
| 121 | } |
| 122 | |
| 123 | |
| 124 | protected void write (int b) |
| 125 | throws IOException |
| 126 | { |
| 127 | if (MultiPartInputStream.this._config.getMaxFileSize() > 0 && _size + 1 > MultiPartInputStream.this._config.getMaxFileSize()) |
| 128 | throw new IllegalStateException ("Multipart Mime part "+_name+" exceeds max filesize"); |
| 129 | |
| 130 | if (MultiPartInputStream.this._config.getFileSizeThreshold() > 0 && _size + 1 > MultiPartInputStream.this._config.getFileSizeThreshold() && _file==null) |
| 131 | createFile(); |
| 132 | _out.write(b); |
| 133 | _size ++; |
| 134 | } |
| 135 | |
| 136 | protected void write (byte[] bytes, int offset, int length) |
| 137 | throws IOException |
| 138 | { |
| 139 | if (MultiPartInputStream.this._config.getMaxFileSize() > 0 && _size + length > MultiPartInputStream.this._config.getMaxFileSize()) |
| 140 | throw new IllegalStateException ("Multipart Mime part "+_name+" exceeds max filesize"); |
| 141 | |
| 142 | if (MultiPartInputStream.this._config.getFileSizeThreshold() > 0 && _size + length > MultiPartInputStream.this._config.getFileSizeThreshold() && _file==null) |
| 143 | createFile(); |
| 144 | |
| 145 | _out.write(bytes, offset, length); |
| 146 | _size += length; |
| 147 | } |
| 148 | |
| 149 | protected void createFile () |
| 150 | throws IOException |
| 151 | { |
| 152 | _file = File.createTempFile("MultiPart", "", MultiPartInputStream.this._tmpDir); |
| 153 | if (_deleteOnExit) |
| 154 | _file.deleteOnExit(); |
| 155 | FileOutputStream fos = new FileOutputStream(_file); |
| 156 | BufferedOutputStream bos = new BufferedOutputStream(fos); |
| 157 | |
| 158 | if (_size > 0 && _out != null) |
| 159 | { |
| 160 | //already written some bytes, so need to copy them into the file |
| 161 | _out.flush(); |
| 162 | _bout.writeTo(bos); |
| 163 | _out.close(); |
| 164 | _bout = null; |
| 165 | } |
| 166 | _out = bos; |
| 167 | } |
| 168 | |
| 169 | |
| 170 | |
| 171 | protected void setHeaders(MultiMap<String> headers) |
| 172 | { |
| 173 | _headers = headers; |
| 174 | } |
| 175 | |
| 176 | /** |
| 177 | * @see javax.servlet.http.Part#getContentType() |
| 178 | */ |
| 179 | public String getContentType() |
| 180 | { |
| 181 | return _contentType; |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * @see javax.servlet.http.Part#getHeader(java.lang.String) |
| 186 | */ |
| 187 | public String getHeader(String name) |
| 188 | { |
| 189 | if (name == null) |
| 190 | return null; |
| 191 | return (String)_headers.getValue(name.toLowerCase(Locale.ENGLISH), 0); |
| 192 | } |
| 193 | |
| 194 | /** |
| 195 | * @see javax.servlet.http.Part#getHeaderNames() |
| 196 | */ |
| 197 | public Collection<String> getHeaderNames() |
| 198 | { |
| 199 | return _headers.keySet(); |
| 200 | } |
| 201 | |
| 202 | /** |
| 203 | * @see javax.servlet.http.Part#getHeaders(java.lang.String) |
| 204 | */ |
| 205 | public Collection<String> getHeaders(String name) |
| 206 | { |
| 207 | return _headers.getValues(name); |
| 208 | } |
| 209 | |
| 210 | /** |
| 211 | * @see javax.servlet.http.Part#getInputStream() |
| 212 | */ |
| 213 | public InputStream getInputStream() throws IOException |
| 214 | { |
| 215 | if (_file != null) |
| 216 | { |
| 217 | //written to a file, whether temporary or not |
| 218 | return new BufferedInputStream (new FileInputStream(_file)); |
| 219 | } |
| 220 | else |
| 221 | { |
| 222 | //part content is in memory |
| 223 | return new ByteArrayInputStream(_bout.getBuf(),0,_bout.size()); |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | public byte[] getBytes() |
| 228 | { |
| 229 | if (_bout!=null) |
| 230 | return _bout.toByteArray(); |
| 231 | return null; |
| 232 | } |
| 233 | |
| 234 | /** |
| 235 | * @see javax.servlet.http.Part#getName() |
| 236 | */ |
| 237 | public String getName() |
| 238 | { |
| 239 | return _name; |
| 240 | } |
| 241 | |
| 242 | /** |
| 243 | * @see javax.servlet.http.Part#getSize() |
| 244 | */ |
| 245 | public long getSize() |
| 246 | { |
| 247 | return _size; |
| 248 | } |
| 249 | |
| 250 | /** |
| 251 | * @see javax.servlet.http.Part#write(java.lang.String) |
| 252 | */ |
| 253 | public void write(String fileName) throws IOException |
| 254 | { |
| 255 | if (_file == null) |
| 256 | { |
| 257 | _temporary = false; |
| 258 | |
| 259 | //part data is only in the ByteArrayOutputStream and never been written to disk |
| 260 | _file = new File (_tmpDir, fileName); |
| 261 | |
| 262 | BufferedOutputStream bos = null; |
| 263 | try |
| 264 | { |
| 265 | bos = new BufferedOutputStream(new FileOutputStream(_file)); |
| 266 | _bout.writeTo(bos); |
| 267 | bos.flush(); |
| 268 | } |
| 269 | finally |
| 270 | { |
| 271 | if (bos != null) |
| 272 | bos.close(); |
| 273 | _bout = null; |
| 274 | } |
| 275 | } |
| 276 | else |
| 277 | { |
| 278 | //the part data is already written to a temporary file, just rename it |
| 279 | _temporary = false; |
| 280 | |
| 281 | File f = new File(_tmpDir, fileName); |
| 282 | if (_file.renameTo(f)) |
| 283 | _file = f; |
| 284 | } |
| 285 | } |
| 286 | |
| 287 | /** |
| 288 | * Remove the file, whether or not Part.write() was called on it |
| 289 | * (ie no longer temporary) |
| 290 | * @see javax.servlet.http.Part#delete() |
| 291 | */ |
| 292 | public void delete() throws IOException |
| 293 | { |
| 294 | if (_file != null && _file.exists()) |
| 295 | _file.delete(); |
| 296 | } |
| 297 | |
| 298 | /** |
| 299 | * Only remove tmp files. |
| 300 | * |
| 301 | * @throws IOException |
| 302 | */ |
| 303 | public void cleanUp() throws IOException |
| 304 | { |
| 305 | if (_temporary && _file != null && _file.exists()) |
| 306 | _file.delete(); |
| 307 | } |
| 308 | |
| 309 | |
| 310 | /** |
| 311 | * Get the file, if any, the data has been written to. |
| 312 | * @return |
| 313 | */ |
| 314 | public File getFile () |
| 315 | { |
| 316 | return _file; |
| 317 | } |
| 318 | |
| 319 | |
| 320 | /** |
| 321 | * Get the filename from the content-disposition. |
| 322 | * @return null or the filename |
| 323 | */ |
| 324 | public String getContentDispositionFilename () |
| 325 | { |
| 326 | return _filename; |
| 327 | } |
| 328 | } |
| 329 | |
| 330 | |
| 331 | |
| 332 | |
| 333 | /** |
| 334 | * @param in Request input stream |
| 335 | * @param contentType Content-Type header |
| 336 | * @param config MultipartConfigElement |
| 337 | * @param contextTmpDir javax.servlet.context.tempdir |
| 338 | */ |
| 339 | public MultiPartInputStream (InputStream in, String contentType, MultipartConfigElement config, File contextTmpDir) |
| 340 | { |
| 341 | _in = new ReadLineInputStream(in); |
| 342 | _contentType = contentType; |
| 343 | _config = config; |
| 344 | _contextTmpDir = contextTmpDir; |
| 345 | if (_contextTmpDir == null) |
| 346 | _contextTmpDir = new File (System.getProperty("java.io.tmpdir")); |
| 347 | |
| 348 | if (_config == null) |
| 349 | _config = new MultipartConfigElement(_contextTmpDir.getAbsolutePath()); |
| 350 | } |
| 351 | |
| 352 | /** |
| 353 | * Get the already parsed parts. |
| 354 | * |
| 355 | * @return |
| 356 | */ |
| 357 | public Collection<Part> getParsedParts() |
| 358 | { |
| 359 | if (_parts == null) |
| 360 | return Collections.emptyList(); |
| 361 | |
| 362 | Collection<Object> values = _parts.values(); |
| 363 | List<Part> parts = new ArrayList<Part>(); |
| 364 | for (Object o: values) |
| 365 | { |
| 366 | List<Part> asList = LazyList.getList(o, false); |
| 367 | parts.addAll(asList); |
| 368 | } |
| 369 | return parts; |
| 370 | } |
| 371 | |
| 372 | /** |
| 373 | * Delete any tmp storage for parts, and clear out the parts list. |
| 374 | * |
| 375 | * @throws MultiException |
| 376 | */ |
| 377 | public void deleteParts () |
| 378 | throws MultiException |
| 379 | { |
| 380 | Collection<Part> parts = getParsedParts(); |
| 381 | MultiException err = new MultiException(); |
| 382 | for (Part p:parts) |
| 383 | { |
| 384 | try |
| 385 | { |
| 386 | ((MultiPartInputStream.MultiPart)p).cleanUp(); |
| 387 | } |
| 388 | catch(Exception e) |
| 389 | { |
| 390 | err.add(e); |
| 391 | } |
| 392 | } |
| 393 | _parts.clear(); |
| 394 | |
| 395 | err.ifExceptionThrowMulti(); |
| 396 | } |
| 397 | |
| 398 | |
| 399 | /** |
| 400 | * Parse, if necessary, the multipart data and return the list of Parts. |
| 401 | * |
| 402 | * @return |
| 403 | * @throws IOException |
| 404 | * @throws ServletException |
| 405 | */ |
| 406 | public Collection<Part> getParts() |
| 407 | throws IOException, ServletException |
| 408 | { |
| 409 | parse(); |
| 410 | Collection<Object> values = _parts.values(); |
| 411 | List<Part> parts = new ArrayList<Part>(); |
| 412 | for (Object o: values) |
| 413 | { |
| 414 | List<Part> asList = LazyList.getList(o, false); |
| 415 | parts.addAll(asList); |
| 416 | } |
| 417 | return parts; |
| 418 | } |
| 419 | |
| 420 | |
| 421 | /** |
| 422 | * Get the named Part. |
| 423 | * |
| 424 | * @param name |
| 425 | * @return |
| 426 | * @throws IOException |
| 427 | * @throws ServletException |
| 428 | */ |
| 429 | public Part getPart(String name) |
| 430 | throws IOException, ServletException |
| 431 | { |
| 432 | parse(); |
| 433 | return (Part)_parts.getValue(name, 0); |
| 434 | } |
| 435 | |
| 436 | |
| 437 | /** |
| 438 | * Parse, if necessary, the multipart stream. |
| 439 | * |
| 440 | * @throws IOException |
| 441 | * @throws ServletException |
| 442 | */ |
| 443 | protected void parse () |
| 444 | throws IOException, ServletException |
| 445 | { |
| 446 | //have we already parsed the input? |
| 447 | if (_parts != null) |
| 448 | return; |
| 449 | |
| 450 | //initialize |
| 451 | long total = 0; //keep running total of size of bytes read from input and throw an exception if exceeds MultipartConfigElement._maxRequestSize |
| 452 | _parts = new MultiMap<String>(); |
| 453 | |
| 454 | //if its not a multipart request, don't parse it |
| 455 | if (_contentType == null || !_contentType.startsWith("multipart/form-data")) |
| 456 | return; |
| 457 | |
| 458 | //sort out the location to which to write the files |
| 459 | |
| 460 | if (_config.getLocation() == null) |
| 461 | _tmpDir = _contextTmpDir; |
| 462 | else if ("".equals(_config.getLocation())) |
| 463 | _tmpDir = _contextTmpDir; |
| 464 | else |
| 465 | { |
| 466 | File f = new File (_config.getLocation()); |
| 467 | if (f.isAbsolute()) |
| 468 | _tmpDir = f; |
| 469 | else |
| 470 | _tmpDir = new File (_contextTmpDir, _config.getLocation()); |
| 471 | } |
| 472 | |
| 473 | if (!_tmpDir.exists()) |
| 474 | _tmpDir.mkdirs(); |
| 475 | |
| 476 | String contentTypeBoundary = ""; |
| 477 | int bstart = _contentType.indexOf("boundary="); |
| 478 | if (bstart >= 0) |
| 479 | { |
| 480 | int bend = _contentType.indexOf(";", bstart); |
| 481 | bend = (bend < 0? _contentType.length(): bend); |
| 482 | contentTypeBoundary = QuotedStringTokenizer.unquote(value(_contentType.substring(bstart,bend), true).trim()); |
| 483 | } |
| 484 | |
| 485 | String boundary="--"+contentTypeBoundary; |
| 486 | byte[] byteBoundary=(boundary+"--").getBytes(StringUtil.__ISO_8859_1); |
| 487 | |
| 488 | // Get first boundary |
| 489 | String line = null; |
| 490 | try |
| 491 | { |
| 492 | line=((ReadLineInputStream)_in).readLine(); |
| 493 | } |
| 494 | catch (IOException e) |
| 495 | { |
| 496 | LOG.warn("Badly formatted multipart request"); |
| 497 | throw e; |
| 498 | } |
| 499 | |
| 500 | if (line == null) |
| 501 | throw new IOException("Missing content for multipart request"); |
| 502 | |
| 503 | boolean badFormatLogged = false; |
| 504 | line=line.trim(); |
| 505 | while (line != null && !line.equals(boundary)) |
| 506 | { |
| 507 | if (!badFormatLogged) |
| 508 | { |
| 509 | LOG.warn("Badly formatted multipart request"); |
| 510 | badFormatLogged = true; |
| 511 | } |
| 512 | line=((ReadLineInputStream)_in).readLine(); |
| 513 | line=(line==null?line:line.trim()); |
| 514 | } |
| 515 | |
| 516 | if (line == null) |
| 517 | throw new IOException("Missing initial multi part boundary"); |
| 518 | |
| 519 | // Read each part |
| 520 | boolean lastPart=false; |
| 521 | |
| 522 | outer:while(!lastPart) |
| 523 | { |
| 524 | String contentDisposition=null; |
| 525 | String contentType=null; |
| 526 | String contentTransferEncoding=null; |
| 527 | |
| 528 | MultiMap<String> headers = new MultiMap<String>(); |
| 529 | while(true) |
| 530 | { |
| 531 | line=((ReadLineInputStream)_in).readLine(); |
| 532 | |
| 533 | //No more input |
| 534 | if(line==null) |
| 535 | break outer; |
| 536 | |
| 537 | // If blank line, end of part headers |
| 538 | if("".equals(line)) |
| 539 | break; |
| 540 | |
| 541 | total += line.length(); |
| 542 | if (_config.getMaxRequestSize() > 0 && total > _config.getMaxRequestSize()) |
| 543 | throw new IllegalStateException ("Request exceeds maxRequestSize ("+_config.getMaxRequestSize()+")"); |
| 544 | |
| 545 | //get content-disposition and content-type |
| 546 | int c=line.indexOf(':',0); |
| 547 | if(c>0) |
| 548 | { |
| 549 | String key=line.substring(0,c).trim().toLowerCase(Locale.ENGLISH); |
| 550 | String value=line.substring(c+1,line.length()).trim(); |
| 551 | headers.put(key, value); |
| 552 | if (key.equalsIgnoreCase("content-disposition")) |
| 553 | contentDisposition=value; |
| 554 | if (key.equalsIgnoreCase("content-type")) |
| 555 | contentType = value; |
| 556 | if(key.equals("content-transfer-encoding")) |
| 557 | contentTransferEncoding=value; |
| 558 | |
| 559 | } |
| 560 | } |
| 561 | |
| 562 | // Extract content-disposition |
| 563 | boolean form_data=false; |
| 564 | if(contentDisposition==null) |
| 565 | { |
| 566 | throw new IOException("Missing content-disposition"); |
| 567 | } |
| 568 | |
| 569 | QuotedStringTokenizer tok=new QuotedStringTokenizer(contentDisposition,";", false, true); |
| 570 | String name=null; |
| 571 | String filename=null; |
| 572 | while(tok.hasMoreTokens()) |
| 573 | { |
| 574 | String t=tok.nextToken().trim(); |
| 575 | String tl=t.toLowerCase(Locale.ENGLISH); |
| 576 | if(t.startsWith("form-data")) |
| 577 | form_data=true; |
| 578 | else if(tl.startsWith("name=")) |
| 579 | name=value(t, true); |
| 580 | else if(tl.startsWith("filename=")) |
| 581 | filename=filenameValue(t); |
| 582 | } |
| 583 | |
| 584 | // Check disposition |
| 585 | if(!form_data) |
| 586 | { |
| 587 | continue; |
| 588 | } |
| 589 | //It is valid for reset and submit buttons to have an empty name. |
| 590 | //If no name is supplied, the browser skips sending the info for that field. |
| 591 | //However, if you supply the empty string as the name, the browser sends the |
| 592 | //field, with name as the empty string. So, only continue this loop if we |
| 593 | //have not yet seen a name field. |
| 594 | if(name==null) |
| 595 | { |
| 596 | continue; |
| 597 | } |
| 598 | |
| 599 | //Have a new Part |
| 600 | MultiPart part = new MultiPart(name, filename); |
| 601 | part.setHeaders(headers); |
| 602 | part.setContentType(contentType); |
| 603 | _parts.add(name, part); |
| 604 | part.open(); |
| 605 | |
| 606 | InputStream partInput = null; |
| 607 | if ("base64".equalsIgnoreCase(contentTransferEncoding)) |
| 608 | { |
| 609 | partInput = new Base64InputStream((ReadLineInputStream)_in); |
| 610 | } |
| 611 | else if ("quoted-printable".equalsIgnoreCase(contentTransferEncoding)) |
| 612 | { |
| 613 | partInput = new FilterInputStream(_in) |
| 614 | { |
| 615 | @Override |
| 616 | public int read() throws IOException |
| 617 | { |
| 618 | int c = in.read(); |
| 619 | if (c >= 0 && c == '=') |
| 620 | { |
| 621 | int hi = in.read(); |
| 622 | int lo = in.read(); |
| 623 | if (hi < 0 || lo < 0) |
| 624 | { |
| 625 | throw new IOException("Unexpected end to quoted-printable byte"); |
| 626 | } |
| 627 | char[] chars = new char[] { (char)hi, (char)lo }; |
| 628 | c = Integer.parseInt(new String(chars),16); |
| 629 | } |
| 630 | return c; |
| 631 | } |
| 632 | }; |
| 633 | } |
| 634 | else |
| 635 | partInput = _in; |
| 636 | |
| 637 | try |
| 638 | { |
| 639 | int state=-2; |
| 640 | int c; |
| 641 | boolean cr=false; |
| 642 | boolean lf=false; |
| 643 | |
| 644 | // loop for all lines |
| 645 | while(true) |
| 646 | { |
| 647 | int b=0; |
| 648 | while((c=(state!=-2)?state:partInput.read())!=-1) |
| 649 | { |
| 650 | total ++; |
| 651 | if (_config.getMaxRequestSize() > 0 && total > _config.getMaxRequestSize()) |
| 652 | throw new IllegalStateException("Request exceeds maxRequestSize ("+_config.getMaxRequestSize()+")"); |
| 653 | |
| 654 | state=-2; |
| 655 | |
| 656 | // look for CR and/or LF |
| 657 | if(c==13||c==10) |
| 658 | { |
| 659 | if(c==13) |
| 660 | { |
| 661 | partInput.mark(1); |
| 662 | int tmp=partInput.read(); |
| 663 | if (tmp!=10) |
| 664 | partInput.reset(); |
| 665 | else |
| 666 | state=tmp; |
| 667 | } |
| 668 | break; |
| 669 | } |
| 670 | |
| 671 | // Look for boundary |
| 672 | if(b>=0&&b<byteBoundary.length&&c==byteBoundary[b]) |
| 673 | { |
| 674 | b++; |
| 675 | } |
| 676 | else |
| 677 | { |
| 678 | // Got a character not part of the boundary, so we don't have the boundary marker. |
| 679 | // Write out as many chars as we matched, then the char we're looking at. |
| 680 | if(cr) |
| 681 | part.write(13); |
| 682 | |
| 683 | if(lf) |
| 684 | part.write(10); |
| 685 | |
| 686 | cr=lf=false; |
| 687 | if(b>0) |
| 688 | part.write(byteBoundary,0,b); |
| 689 | |
| 690 | b=-1; |
| 691 | part.write(c); |
| 692 | } |
| 693 | } |
| 694 | |
| 695 | // Check for incomplete boundary match, writing out the chars we matched along the way |
| 696 | if((b>0&&b<byteBoundary.length-2)||(b==byteBoundary.length-1)) |
| 697 | { |
| 698 | if(cr) |
| 699 | part.write(13); |
| 700 | |
| 701 | if(lf) |
| 702 | part.write(10); |
| 703 | |
| 704 | cr=lf=false; |
| 705 | part.write(byteBoundary,0,b); |
| 706 | b=-1; |
| 707 | } |
| 708 | |
| 709 | // Boundary match. If we've run out of input or we matched the entire final boundary marker, then this is the last part. |
| 710 | if(b>0||c==-1) |
| 711 | { |
| 712 | |
| 713 | if(b==byteBoundary.length) |
| 714 | lastPart=true; |
| 715 | if(state==10) |
| 716 | state=-2; |
| 717 | break; |
| 718 | } |
| 719 | |
| 720 | // handle CR LF |
| 721 | if(cr) |
| 722 | part.write(13); |
| 723 | |
| 724 | if(lf) |
| 725 | part.write(10); |
| 726 | |
| 727 | cr=(c==13); |
| 728 | lf=(c==10||state==10); |
| 729 | if(state==10) |
| 730 | state=-2; |
| 731 | } |
| 732 | } |
| 733 | finally |
| 734 | { |
| 735 | part.close(); |
| 736 | } |
| 737 | } |
| 738 | if (!lastPart) |
| 739 | throw new IOException("Incomplete parts"); |
| 740 | } |
| 741 | |
| 742 | public void setDeleteOnExit(boolean deleteOnExit) |
| 743 | { |
| 744 | _deleteOnExit = deleteOnExit; |
| 745 | } |
| 746 | |
| 747 | |
| 748 | public boolean isDeleteOnExit() |
| 749 | { |
| 750 | return _deleteOnExit; |
| 751 | } |
| 752 | |
| 753 | |
| 754 | /* ------------------------------------------------------------ */ |
| 755 | private String value(String nameEqualsValue, boolean splitAfterSpace) |
| 756 | { |
| 757 | /* |
| 758 | String value=nameEqualsValue.substring(nameEqualsValue.indexOf('=')+1).trim(); |
| 759 | int i=value.indexOf(';'); |
| 760 | if(i>0) |
| 761 | value=value.substring(0,i); |
| 762 | if(value.startsWith("\"")) |
| 763 | { |
| 764 | value=value.substring(1,value.indexOf('"',1)); |
| 765 | } |
| 766 | else if (splitAfterSpace) |
| 767 | { |
| 768 | i=value.indexOf(' '); |
| 769 | if(i>0) |
| 770 | value=value.substring(0,i); |
| 771 | } |
| 772 | return value; |
| 773 | */ |
| 774 | int idx = nameEqualsValue.indexOf('='); |
| 775 | String value = nameEqualsValue.substring(idx+1).trim(); |
| 776 | return QuotedStringTokenizer.unquoteOnly(value); |
| 777 | } |
| 778 | |
| 779 | |
| 780 | /* ------------------------------------------------------------ */ |
| 781 | private String filenameValue(String nameEqualsValue) |
| 782 | { |
| 783 | int idx = nameEqualsValue.indexOf('='); |
| 784 | String value = nameEqualsValue.substring(idx+1).trim(); |
| 785 | |
| 786 | if (value.matches(".??[a-z,A-Z]\\:\\\\[^\\\\].*")) |
| 787 | { |
| 788 | //incorrectly escaped IE filenames that have the whole path |
| 789 | //we just strip any leading & trailing quotes and leave it as is |
| 790 | char first=value.charAt(0); |
| 791 | if (first=='"' || first=='\'') |
| 792 | value=value.substring(1); |
| 793 | char last=value.charAt(value.length()-1); |
| 794 | if (last=='"' || last=='\'') |
| 795 | value = value.substring(0,value.length()-1); |
| 796 | |
| 797 | return value; |
| 798 | } |
| 799 | else |
| 800 | //unquote the string, but allow any backslashes that don't |
| 801 | //form a valid escape sequence to remain as many browsers |
| 802 | //even on *nix systems will not escape a filename containing |
| 803 | //backslashes |
| 804 | return QuotedStringTokenizer.unquoteOnly(value, true); |
| 805 | } |
| 806 | |
| 807 | private static class Base64InputStream extends InputStream |
| 808 | { |
| 809 | ReadLineInputStream _in; |
| 810 | String _line; |
| 811 | byte[] _buffer; |
| 812 | int _pos; |
| 813 | |
| 814 | |
| 815 | public Base64InputStream(ReadLineInputStream rlis) |
| 816 | { |
| 817 | _in = rlis; |
| 818 | } |
| 819 | |
| 820 | @Override |
| 821 | public int read() throws IOException |
| 822 | { |
| 823 | if (_buffer==null || _pos>= _buffer.length) |
| 824 | { |
| 825 | //Any CR and LF will be consumed by the readLine() call. |
| 826 | //We need to put them back into the bytes returned from this |
| 827 | //method because the parsing of the multipart content uses them |
| 828 | //as markers to determine when we've reached the end of a part. |
| 829 | _line = _in.readLine(); |
| 830 | if (_line==null) |
| 831 | return -1; //nothing left |
| 832 | if (_line.startsWith("--")) |
| 833 | _buffer=(_line+"\r\n").getBytes(); //boundary marking end of part |
| 834 | else if (_line.length()==0) |
| 835 | _buffer="\r\n".getBytes(); //blank line |
| 836 | else |
| 837 | { |
| 838 | ByteArrayOutputStream baos = new ByteArrayOutputStream((4*_line.length()/3)+2); |
| 839 | B64Code.decode(_line, baos); |
| 840 | baos.write(13); |
| 841 | baos.write(10); |
| 842 | _buffer = baos.toByteArray(); |
| 843 | } |
| 844 | |
| 845 | _pos=0; |
| 846 | } |
| 847 | |
| 848 | return _buffer[_pos++]; |
| 849 | } |
| 850 | } |
| 851 | } |