1 /* 2 * Copyright (c) 1996, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.tools.jar; 27 28 import java.io.*; 29 import java.lang.module.Configuration; 30 import java.lang.module.FindException; 31 import java.lang.module.InvalidModuleDescriptorException; 32 import java.lang.module.ModuleDescriptor; 33 import java.lang.module.ModuleDescriptor.Exports; 34 import java.lang.module.ModuleDescriptor.Opens; 35 import java.lang.module.ModuleDescriptor.Provides; 36 import java.lang.module.ModuleDescriptor.Version; 37 import java.lang.module.ModuleFinder; 38 import java.lang.module.ModuleReader; 39 import java.lang.module.ModuleReference; 40 import java.lang.module.ResolvedModule; 41 import java.net.URI; 42 import java.nio.ByteBuffer; 43 import java.nio.file.Files; 44 import java.nio.file.Path; 45 import java.nio.file.Paths; 46 import java.nio.file.StandardCopyOption; 47 import java.text.MessageFormat; 48 import java.util.*; 49 import java.util.function.Consumer; 50 import java.util.jar.Attributes; 51 import java.util.jar.JarFile; 52 import java.util.jar.JarOutputStream; 53 import java.util.jar.Manifest; 54 import java.util.regex.Pattern; 55 import java.util.stream.Collectors; 56 import java.util.stream.Stream; 57 import java.util.zip.CRC32; 58 import java.util.zip.ZipEntry; 59 import java.util.zip.ZipFile; 60 import java.util.zip.ZipInputStream; 61 import java.util.zip.ZipOutputStream; 62 import jdk.internal.module.Checks; 63 import jdk.internal.module.ModuleHashes; 64 import jdk.internal.module.ModuleHashesBuilder; 65 import jdk.internal.module.ModuleInfo; 66 import jdk.internal.module.ModuleInfoExtender; 67 import jdk.internal.module.ModuleResolution; 68 import jdk.internal.module.ModuleTarget; 69 import jdk.internal.util.jar.JarIndex; 70 71 import static java.nio.file.StandardCopyOption.REPLACE_EXISTING; 72 import static java.util.jar.JarFile.MANIFEST_NAME; 73 import static java.util.stream.Collectors.joining; 74 import static jdk.internal.util.jar.JarIndex.INDEX_NAME; 75 76 /** 77 * This class implements a simple utility for creating files in the JAR 78 * (Java Archive) file format. The JAR format is based on the ZIP file 79 * format, with optional meta-information stored in a MANIFEST entry. 80 */ 81 public class Main { 82 String program; 83 PrintWriter out, err; 84 String fname, mname, ename; 85 String zname = ""; 86 String rootjar = null; 87 88 private static final int BASE_VERSION = 0; 89 90 private static class Entry { 91 final String name; 92 final File file; 93 final boolean isDir; 94 95 Entry(File file, String name, boolean isDir) { 96 this.file = file; 97 this.isDir = isDir; 98 this.name = name; 99 } 100 101 @Override 102 public boolean equals(Object o) { 103 if (this == o) return true; 104 if (!(o instanceof Entry)) return false; 105 return this.file.equals(((Entry)o).file); 106 } 107 108 @Override 109 public int hashCode() { 110 return file.hashCode(); 111 } 112 } 113 114 // An entryName(path)->Entry map generated during "expand", it helps to 115 // decide whether or not an existing entry in a jar file needs to be 116 // replaced, during the "update" operation. 117 Map<String, Entry> entryMap = new HashMap<>(); 118 119 // All entries need to be added/updated. 120 Set<Entry> entries = new LinkedHashSet<>(); 121 122 // module-info.class entries need to be added/updated. 123 Map<String,byte[]> moduleInfos = new HashMap<>(); 124 125 // A paths Set for each version, where each Set contains directories 126 // specified by the "-C" operation. 127 Map<Integer,Set<String>> pathsMap = new HashMap<>(); 128 129 // There's also a files array per version 130 Map<Integer,String[]> filesMap = new HashMap<>(); 131 132 // Do we think this is a multi-release jar? Set to true 133 // if --release option found followed by at least file 134 boolean isMultiRelease; 135 136 // The last parsed --release value, if any. Used in conjunction with 137 // "-d,--describe-module" to select the operative module descriptor. 138 int releaseValue = -1; 139 140 /* 141 * cflag: create 142 * uflag: update 143 * xflag: xtract 144 * tflag: table 145 * vflag: verbose 146 * flag0: no zip compression (store only) 147 * Mflag: DO NOT generate a manifest file (just ZIP) 148 * iflag: generate jar index 149 * nflag: Perform jar normalization at the end 150 * pflag: preserve/don't strip leading slash and .. component from file name 151 * dflag: print module descriptor 152 */ 153 boolean cflag, uflag, xflag, tflag, vflag, flag0, Mflag, iflag, nflag, pflag, dflag; 154 155 boolean suppressDeprecateMsg = false; 156 157 /* To support additional GNU Style informational options */ 158 Consumer<PrintWriter> info; 159 160 /* Modular jar related options */ 161 Version moduleVersion; 162 Pattern modulesToHash; 163 ModuleResolution moduleResolution = ModuleResolution.empty(); 164 ModuleFinder moduleFinder = ModuleFinder.of(); 165 166 static final String MODULE_INFO = "module-info.class"; 167 static final String MANIFEST_DIR = "META-INF/"; 168 static final String VERSIONS_DIR = MANIFEST_DIR + "versions/"; 169 static final String VERSION = "1.0"; 170 static final int VERSIONS_DIR_LENGTH = VERSIONS_DIR.length(); 171 private static ResourceBundle rsrc; 172 173 /** 174 * If true, maintain compatibility with JDK releases prior to 6.0 by 175 * timestamping extracted files with the time at which they are extracted. 176 * Default is to use the time given in the archive. 177 */ 178 private static final boolean useExtractionTime = 179 Boolean.getBoolean("sun.tools.jar.useExtractionTime"); 180 181 /** 182 * Initialize ResourceBundle 183 */ 184 static { 185 try { 186 rsrc = ResourceBundle.getBundle("sun.tools.jar.resources.jar"); 187 } catch (MissingResourceException e) { 188 throw new Error("Fatal: Resource for jar is missing"); 189 } 190 } 191 192 static String getMsg(String key) { 193 try { 194 return (rsrc.getString(key)); 195 } catch (MissingResourceException e) { 196 throw new Error("Error in message file"); 197 } 198 } 199 200 static String formatMsg(String key, String arg) { 201 String msg = getMsg(key); 202 String[] args = new String[1]; 203 args[0] = arg; 204 return MessageFormat.format(msg, (Object[]) args); 205 } 206 207 static String formatMsg2(String key, String arg, String arg1) { 208 String msg = getMsg(key); 209 String[] args = new String[2]; 210 args[0] = arg; 211 args[1] = arg1; 212 return MessageFormat.format(msg, (Object[]) args); 213 } 214 215 public Main(PrintStream out, PrintStream err, String program) { 216 this.out = new PrintWriter(out, true); 217 this.err = new PrintWriter(err, true); 218 this.program = program; 219 } 220 221 public Main(PrintWriter out, PrintWriter err, String program) { 222 this.out = out; 223 this.err = err; 224 this.program = program; 225 } 226 227 /** 228 * Creates a new empty temporary file in the same directory as the 229 * specified file. A variant of File.createTempFile. 230 */ 231 private static File createTempFileInSameDirectoryAs(File file) 232 throws IOException { 233 File dir = file.getParentFile(); 234 if (dir == null) 235 dir = new File("."); 236 return File.createTempFile("jartmp", null, dir); 237 } 238 239 private boolean ok; 240 241 /** 242 * Starts main program with the specified arguments. 243 */ 244 @SuppressWarnings({"removal"}) 245 public synchronized boolean run(String args[]) { 246 ok = true; 247 if (!parseArgs(args)) { 248 return false; 249 } 250 File tmpFile = null; 251 try { 252 if (cflag || uflag) { 253 if (fname != null) { 254 // The name of the zip file as it would appear as its own 255 // zip file entry. We use this to make sure that we don't 256 // add the zip file to itself. 257 zname = fname.replace(File.separatorChar, '/'); 258 if (zname.startsWith("./")) { 259 zname = zname.substring(2); 260 } 261 } 262 } 263 if (cflag) { 264 Manifest manifest = null; 265 if (!Mflag) { 266 if (mname != null) { 267 try (InputStream in = new FileInputStream(mname)) { 268 manifest = new Manifest(new BufferedInputStream(in)); 269 } 270 } else { 271 manifest = new Manifest(); 272 } 273 addVersion(manifest); 274 addCreatedBy(manifest); 275 if (isAmbiguousMainClass(manifest)) { 276 return false; 277 } 278 if (ename != null) { 279 addMainClass(manifest, ename); 280 } 281 if (isMultiRelease) { 282 addMultiRelease(manifest); 283 } 284 } 285 expand(); 286 if (!moduleInfos.isEmpty()) { 287 // All actual file entries (excl manifest and module-info.class) 288 Set<String> jentries = new HashSet<>(); 289 // all packages if it's a class or resource 290 Set<String> packages = new HashSet<>(); 291 entries.stream() 292 .filter(e -> !e.isDir) 293 .forEach( e -> { 294 addPackageIfNamed(packages, e.name); 295 jentries.add(e.name); 296 }); 297 addExtendedModuleAttributes(moduleInfos, packages); 298 299 // Basic consistency checks for modular jars. 300 if (!checkModuleInfo(moduleInfos.get(MODULE_INFO), jentries)) 301 return false; 302 303 } else if (moduleVersion != null || modulesToHash != null) { 304 error(getMsg("error.module.options.without.info")); 305 return false; 306 } 307 if (vflag && fname == null) { 308 // Disable verbose output so that it does not appear 309 // on stdout along with file data 310 // error("Warning: -v option ignored"); 311 vflag = false; 312 } 313 final String tmpbase = (fname == null) 314 ? "tmpjar" 315 : fname.substring(fname.indexOf(File.separatorChar) + 1); 316 317 tmpFile = createTemporaryFile(tmpbase, ".jar"); 318 try (OutputStream out = new FileOutputStream(tmpFile)) { 319 create(new BufferedOutputStream(out, 4096), manifest); 320 } 321 if (nflag) { 322 if (!suppressDeprecateMsg) { 323 warn(formatMsg("warn.flag.is.deprecated", "-n")); 324 } 325 File packFile = createTemporaryFile(tmpbase, ".pack"); 326 try { 327 java.util.jar.Pack200.Packer packer = java.util.jar.Pack200.newPacker(); 328 Map<String, String> p = packer.properties(); 329 p.put(java.util.jar.Pack200.Packer.EFFORT, "1"); // Minimal effort to conserve CPU 330 try (JarFile jarFile = new JarFile(tmpFile.getCanonicalPath()); 331 OutputStream pack = new FileOutputStream(packFile)) 332 { 333 packer.pack(jarFile, pack); 334 } 335 if (tmpFile.exists()) { 336 tmpFile.delete(); 337 } 338 tmpFile = createTemporaryFile(tmpbase, ".jar"); 339 try (OutputStream out = new FileOutputStream(tmpFile); 340 JarOutputStream jos = new JarOutputStream(out)) 341 { 342 java.util.jar.Pack200.Unpacker unpacker = java.util.jar.Pack200.newUnpacker(); 343 unpacker.unpack(packFile, jos); 344 } 345 } finally { 346 Files.deleteIfExists(packFile.toPath()); 347 } 348 } 349 validateAndClose(tmpFile); 350 } else if (uflag) { 351 File inputFile = null; 352 if (fname != null) { 353 inputFile = new File(fname); 354 tmpFile = createTempFileInSameDirectoryAs(inputFile); 355 } else { 356 vflag = false; 357 tmpFile = createTemporaryFile("tmpjar", ".jar"); 358 } 359 expand(); 360 try (FileInputStream in = (fname != null) ? new FileInputStream(inputFile) 361 : new FileInputStream(FileDescriptor.in); 362 FileOutputStream out = new FileOutputStream(tmpFile); 363 InputStream manifest = (!Mflag && (mname != null)) ? 364 (new FileInputStream(mname)) : null; 365 ) { 366 boolean updateOk = update(in, new BufferedOutputStream(out), 367 manifest, moduleInfos, null); 368 if (ok) { 369 ok = updateOk; 370 } 371 } 372 validateAndClose(tmpFile); 373 } else if (tflag) { 374 replaceFSC(filesMap); 375 // For the "list table contents" action, access using the 376 // ZipFile class is always most efficient since only a 377 // "one-finger" scan through the central directory is required. 378 String[] files = filesMapToFiles(filesMap); 379 if (fname != null) { 380 list(fname, files); 381 } else { 382 InputStream in = new FileInputStream(FileDescriptor.in); 383 try { 384 list(new BufferedInputStream(in), files); 385 } finally { 386 in.close(); 387 } 388 } 389 } else if (xflag) { 390 replaceFSC(filesMap); 391 // For the extract action, when extracting all the entries, 392 // access using the ZipInputStream class is most efficient, 393 // since only a single sequential scan through the zip file is 394 // required. When using the ZipFile class, a "two-finger" scan 395 // is required, but this is likely to be more efficient when a 396 // partial extract is requested. In case the zip file has 397 // "leading garbage", we fall back from the ZipInputStream 398 // implementation to the ZipFile implementation, since only the 399 // latter can handle it. 400 401 String[] files = filesMapToFiles(filesMap); 402 if (fname != null && files != null) { 403 extract(fname, files); 404 } else { 405 InputStream in = (fname == null) 406 ? new FileInputStream(FileDescriptor.in) 407 : new FileInputStream(fname); 408 try { 409 if (!extract(new BufferedInputStream(in), files) && fname != null) { 410 extract(fname, files); 411 } 412 } finally { 413 in.close(); 414 } 415 } 416 } else if (iflag) { 417 String[] files = filesMap.get(BASE_VERSION); // base entries only, can be null 418 genIndex(rootjar, files); 419 } else if (dflag) { 420 boolean found; 421 if (fname != null) { 422 try (ZipFile zf = new ZipFile(fname)) { 423 found = describeModule(zf); 424 } 425 } else { 426 try (FileInputStream fin = new FileInputStream(FileDescriptor.in)) { 427 found = describeModuleFromStream(fin); 428 } 429 } 430 if (!found) 431 error(getMsg("error.module.descriptor.not.found")); 432 } 433 } catch (IOException e) { 434 fatalError(e); 435 ok = false; 436 } catch (Error ee) { 437 ee.printStackTrace(); 438 ok = false; 439 } catch (Throwable t) { 440 t.printStackTrace(); 441 ok = false; 442 } finally { 443 if (tmpFile != null && tmpFile.exists()) 444 tmpFile.delete(); 445 } 446 out.flush(); 447 err.flush(); 448 return ok; 449 } 450 451 private void validateAndClose(File tmpfile) throws IOException { 452 if (ok && isMultiRelease) { 453 try (ZipFile zf = new ZipFile(tmpfile)) { 454 ok = Validator.validate(this, zf); 455 if (!ok) { 456 error(formatMsg("error.validator.jarfile.invalid", fname)); 457 } 458 } catch (IOException e) { 459 error(formatMsg2("error.validator.jarfile.exception", fname, e.getMessage())); 460 } 461 } 462 Path path = tmpfile.toPath(); 463 try { 464 if (ok) { 465 if (fname != null) { 466 Files.move(path, Paths.get(fname), StandardCopyOption.REPLACE_EXISTING); 467 } else { 468 Files.copy(path, new FileOutputStream(FileDescriptor.out)); 469 } 470 } 471 } finally { 472 Files.deleteIfExists(path); 473 } 474 } 475 476 private String[] filesMapToFiles(Map<Integer,String[]> filesMap) { 477 if (filesMap.isEmpty()) return null; 478 return filesMap.entrySet() 479 .stream() 480 .flatMap(this::filesToEntryNames) 481 .toArray(String[]::new); 482 } 483 484 Stream<String> filesToEntryNames(Map.Entry<Integer,String[]> fileEntries) { 485 int version = fileEntries.getKey(); 486 Set<String> cpaths = pathsMap.get(version); 487 return Stream.of(fileEntries.getValue()) 488 .map(f -> toVersionedName(toEntryName(f, cpaths, false), version)); 489 } 490 491 /** 492 * Parses command line arguments. 493 */ 494 boolean parseArgs(String args[]) { 495 /* Preprocess and expand @file arguments */ 496 try { 497 args = CommandLine.parse(args); 498 } catch (FileNotFoundException e) { 499 fatalError(formatMsg("error.cant.open", e.getMessage())); 500 return false; 501 } catch (IOException e) { 502 fatalError(e); 503 return false; 504 } 505 /* parse flags */ 506 int count = 1; 507 try { 508 String flags = args[0]; 509 510 // Note: flags.length == 2 can be treated as the short version of 511 // the GNU option since the there cannot be any other options, 512 // excluding -C, as per the old way. 513 if (flags.startsWith("--") || 514 (flags.startsWith("-") && flags.length() == 2)) { 515 try { 516 count = GNUStyleOptions.parseOptions(this, args); 517 } catch (GNUStyleOptions.BadArgs x) { 518 if (info == null) { 519 if (x.showUsage) { 520 usageError(x.getMessage()); 521 } else { 522 error(x.getMessage()); 523 } 524 return false; 525 } 526 } 527 if (info != null) { 528 info.accept(out); 529 return true; 530 } 531 } else { 532 // Legacy/compatibility options 533 if (flags.startsWith("-")) { 534 flags = flags.substring(1); 535 } 536 for (int i = 0; i < flags.length(); i++) { 537 switch (flags.charAt(i)) { 538 case 'c': 539 if (xflag || tflag || uflag || iflag) { 540 usageError(getMsg("error.multiple.main.operations")); 541 return false; 542 } 543 cflag = true; 544 break; 545 case 'u': 546 if (cflag || xflag || tflag || iflag) { 547 usageError(getMsg("error.multiple.main.operations")); 548 return false; 549 } 550 uflag = true; 551 break; 552 case 'x': 553 if (cflag || uflag || tflag || iflag) { 554 usageError(getMsg("error.multiple.main.operations")); 555 return false; 556 } 557 xflag = true; 558 break; 559 case 't': 560 if (cflag || uflag || xflag || iflag) { 561 usageError(getMsg("error.multiple.main.operations")); 562 return false; 563 } 564 tflag = true; 565 break; 566 case 'M': 567 Mflag = true; 568 break; 569 case 'v': 570 vflag = true; 571 break; 572 case 'f': 573 fname = args[count++]; 574 break; 575 case 'm': 576 mname = args[count++]; 577 break; 578 case '0': 579 flag0 = true; 580 break; 581 case 'i': 582 if (cflag || uflag || xflag || tflag) { 583 usageError(getMsg("error.multiple.main.operations")); 584 return false; 585 } 586 // do not increase the counter, files will contain rootjar 587 rootjar = args[count++]; 588 iflag = true; 589 break; 590 case 'n': 591 nflag = true; 592 break; 593 case 'e': 594 ename = args[count++]; 595 break; 596 case 'P': 597 pflag = true; 598 break; 599 default: 600 usageError(formatMsg("error.illegal.option", 601 String.valueOf(flags.charAt(i)))); 602 return false; 603 } 604 } 605 } 606 } catch (ArrayIndexOutOfBoundsException e) { 607 usageError(getMsg("main.usage.summary")); 608 return false; 609 } 610 if (!cflag && !tflag && !xflag && !uflag && !iflag && !dflag) { 611 usageError(getMsg("error.bad.option")); 612 return false; 613 } 614 615 /* parse file arguments */ 616 int n = args.length - count; 617 if (n > 0) { 618 int version = BASE_VERSION; 619 int k = 0; 620 String[] nameBuf = new String[n]; 621 pathsMap.put(version, new HashSet<>()); 622 try { 623 for (int i = count; i < args.length; i++) { 624 if (args[i].equals("-C")) { 625 if (dflag) { 626 // "--describe-module/-d" does not require file argument(s), 627 // but does accept --release 628 usageError(getMsg("error.bad.dflag")); 629 return false; 630 } 631 /* change the directory */ 632 String dir = args[++i]; 633 dir = (dir.endsWith(File.separator) ? 634 dir : (dir + File.separator)); 635 dir = dir.replace(File.separatorChar, '/'); 636 while (dir.indexOf("//") > -1) { 637 dir = dir.replace("//", "/"); 638 } 639 pathsMap.get(version).add(dir.replace(File.separatorChar, '/')); 640 nameBuf[k++] = dir + args[++i]; 641 } else if (args[i].startsWith("--release")) { 642 int v = BASE_VERSION; 643 try { 644 v = Integer.valueOf(args[++i]); 645 } catch (NumberFormatException x) { 646 error(formatMsg("error.release.value.notnumber", args[i])); 647 // this will fall into the next error, thus returning false 648 } 649 if (v < 9) { 650 usageError(formatMsg("error.release.value.toosmall", String.valueOf(v))); 651 return false; 652 } 653 // associate the files, if any, with the previous version number 654 if (k > 0) { 655 String[] files = new String[k]; 656 System.arraycopy(nameBuf, 0, files, 0, k); 657 filesMap.put(version, files); 658 isMultiRelease = version > BASE_VERSION; 659 } 660 // reset the counters and start with the new version number 661 k = 0; 662 nameBuf = new String[n]; 663 version = v; 664 releaseValue = version; 665 pathsMap.put(version, new HashSet<>()); 666 } else { 667 if (dflag) { 668 // "--describe-module/-d" does not require file argument(s), 669 // but does accept --release 670 usageError(getMsg("error.bad.dflag")); 671 return false; 672 } 673 nameBuf[k++] = args[i]; 674 } 675 } 676 } catch (ArrayIndexOutOfBoundsException e) { 677 usageError(getMsg("error.bad.file.arg")); 678 return false; 679 } 680 // associate remaining files, if any, with a version 681 if (k > 0) { 682 String[] files = new String[k]; 683 System.arraycopy(nameBuf, 0, files, 0, k); 684 filesMap.put(version, files); 685 isMultiRelease = version > BASE_VERSION; 686 } 687 } else if (cflag && (mname == null)) { 688 usageError(getMsg("error.bad.cflag")); 689 return false; 690 } else if (uflag) { 691 if ((mname != null) || (ename != null)) { 692 /* just want to update the manifest */ 693 return true; 694 } else { 695 usageError(getMsg("error.bad.uflag")); 696 return false; 697 } 698 } 699 return true; 700 } 701 702 /* 703 * Add the package of the given resource name if it's a .class 704 * or a resource in a named package. 705 */ 706 void addPackageIfNamed(Set<String> packages, String name) { 707 if (name.startsWith(VERSIONS_DIR)) { 708 // trim the version dir prefix 709 int i0 = VERSIONS_DIR_LENGTH; 710 int i = name.indexOf('/', i0); 711 if (i <= 0) { 712 warn(formatMsg("warn.release.unexpected.versioned.entry", name)); 713 return; 714 } 715 while (i0 < i) { 716 char c = name.charAt(i0); 717 if (c < '0' || c > '9') { 718 warn(formatMsg("warn.release.unexpected.versioned.entry", name)); 719 return; 720 } 721 i0++; 722 } 723 name = name.substring(i + 1, name.length()); 724 } 725 String pn = toPackageName(name); 726 // add if this is a class or resource in a package 727 if (Checks.isPackageName(pn)) { 728 packages.add(pn); 729 } 730 } 731 732 private String toEntryName(String name, Set<String> cpaths, boolean isDir) { 733 name = name.replace(File.separatorChar, '/'); 734 if (isDir) { 735 name = name.endsWith("/") ? name : name + "/"; 736 } 737 String matchPath = ""; 738 for (String path : cpaths) { 739 if (name.startsWith(path) && path.length() > matchPath.length()) { 740 matchPath = path; 741 } 742 } 743 name = safeName(name.substring(matchPath.length())); 744 // the old implementaton doesn't remove 745 // "./" if it was led by "/" (?) 746 if (name.startsWith("./")) { 747 name = name.substring(2); 748 } 749 return name; 750 } 751 752 private static String toVersionedName(String name, int version) { 753 return version > BASE_VERSION 754 ? VERSIONS_DIR + version + "/" + name : name; 755 } 756 757 private static String toPackageName(String path) { 758 int index = path.lastIndexOf('/'); 759 if (index != -1) { 760 return path.substring(0, index).replace('/', '.'); 761 } else { 762 return ""; 763 } 764 } 765 766 private void expand() throws IOException { 767 for (int version : filesMap.keySet()) { 768 String[] files = filesMap.get(version); 769 expand(null, files, pathsMap.get(version), version); 770 } 771 } 772 773 /** 774 * Expands list of files to process into full list of all files that 775 * can be found by recursively descending directories. 776 * 777 * @param dir parent directory 778 * @param files list of files to expand 779 * @param cpaths set of directories specified by -C option for the files 780 * @throws IOException if an I/O error occurs 781 */ 782 private void expand(File dir, String[] files, Set<String> cpaths, int version) 783 throws IOException 784 { 785 if (files == null) 786 return; 787 788 for (int i = 0; i < files.length; i++) { 789 File f; 790 if (dir == null) 791 f = new File(files[i]); 792 else 793 f = new File(dir, files[i]); 794 795 boolean isDir = f.isDirectory(); 796 String name = toEntryName(f.getPath(), cpaths, isDir); 797 798 if (version != BASE_VERSION) { 799 if (name.startsWith(VERSIONS_DIR)) { 800 // the entry starts with VERSIONS_DIR and version != BASE_VERSION, 801 // which means the "[dirs|files]" in --release v [dirs|files] 802 // includes VERSIONS_DIR-ed entries --> warning and skip (?) 803 error(formatMsg2("error.release.unexpected.versioned.entry", 804 name, String.valueOf(version))); 805 ok = false; 806 return; 807 } 808 name = toVersionedName(name, version); 809 } 810 811 if (f.isFile()) { 812 Entry e = new Entry(f, name, false); 813 if (isModuleInfoEntry(name)) { 814 moduleInfos.putIfAbsent(name, Files.readAllBytes(f.toPath())); 815 if (uflag) 816 entryMap.put(name, e); 817 } else if (entries.add(e)) { 818 if (uflag) 819 entryMap.put(name, e); 820 } 821 } else if (isDir) { 822 Entry e = new Entry(f, name, true); 823 if (entries.add(e)) { 824 // utilize entryMap for the duplicate dir check even in 825 // case of cflag == true. 826 // dir name confilict/duplicate could happen with -C option. 827 // just remove the last "e" from the "entries" (zos will fail 828 // with "duplicated" entries), but continue expanding the 829 // sub tree 830 if (entryMap.containsKey(name)) { 831 entries.remove(e); 832 } else { 833 entryMap.put(name, e); 834 } 835 expand(f, f.list(), cpaths, version); 836 } 837 } else { 838 error(formatMsg("error.nosuch.fileordir", String.valueOf(f))); 839 ok = false; 840 } 841 } 842 } 843 844 /** 845 * Creates a new JAR file. 846 */ 847 void create(OutputStream out, Manifest manifest) throws IOException 848 { 849 try (ZipOutputStream zos = new JarOutputStream(out)) { 850 if (flag0) { 851 zos.setMethod(ZipOutputStream.STORED); 852 } 853 // TODO: check module-info attributes against manifest ?? 854 if (manifest != null) { 855 if (vflag) { 856 output(getMsg("out.added.manifest")); 857 } 858 ZipEntry e = new ZipEntry(MANIFEST_DIR); 859 e.setTime(System.currentTimeMillis()); 860 e.setSize(0); 861 e.setCrc(0); 862 zos.putNextEntry(e); 863 e = new ZipEntry(MANIFEST_NAME); 864 e.setTime(System.currentTimeMillis()); 865 if (flag0) { 866 crc32Manifest(e, manifest); 867 } 868 zos.putNextEntry(e); 869 manifest.write(zos); 870 zos.closeEntry(); 871 } 872 updateModuleInfo(moduleInfos, zos); 873 for (Entry entry : entries) { 874 addFile(zos, entry); 875 } 876 } 877 } 878 879 private char toUpperCaseASCII(char c) { 880 return (c < 'a' || c > 'z') ? c : (char) (c + 'A' - 'a'); 881 } 882 883 /** 884 * Compares two strings for equality, ignoring case. The second 885 * argument must contain only upper-case ASCII characters. 886 * We don't want case comparison to be locale-dependent (else we 887 * have the notorious "turkish i bug"). 888 */ 889 private boolean equalsIgnoreCase(String s, String upper) { 890 assert upper.toUpperCase(java.util.Locale.ENGLISH).equals(upper); 891 int len; 892 if ((len = s.length()) != upper.length()) 893 return false; 894 for (int i = 0; i < len; i++) { 895 char c1 = s.charAt(i); 896 char c2 = upper.charAt(i); 897 if (c1 != c2 && toUpperCaseASCII(c1) != c2) 898 return false; 899 } 900 return true; 901 } 902 903 /** 904 * Updates an existing jar file. 905 */ 906 boolean update(InputStream in, OutputStream out, 907 InputStream newManifest, 908 Map<String,byte[]> moduleInfos, 909 JarIndex jarIndex) throws IOException 910 { 911 ZipInputStream zis = new ZipInputStream(in); 912 ZipOutputStream zos = new JarOutputStream(out); 913 ZipEntry e = null; 914 boolean foundManifest = false; 915 boolean updateOk = true; 916 917 // All actual entries added/updated/existing, in the jar file (excl manifest 918 // and module-info.class ). 919 Set<String> jentries = new HashSet<>(); 920 921 if (jarIndex != null) { 922 addIndex(jarIndex, zos); 923 } 924 925 // put the old entries first, replace if necessary 926 while ((e = zis.getNextEntry()) != null) { 927 String name = e.getName(); 928 929 boolean isManifestEntry = equalsIgnoreCase(name, MANIFEST_NAME); 930 boolean isModuleInfoEntry = isModuleInfoEntry(name); 931 932 if ((jarIndex != null && equalsIgnoreCase(name, INDEX_NAME)) 933 || (Mflag && isManifestEntry)) { 934 continue; 935 } else if (isManifestEntry && ((newManifest != null) || 936 (ename != null) || isMultiRelease)) { 937 foundManifest = true; 938 if (newManifest != null) { 939 // Don't read from the newManifest InputStream, as we 940 // might need it below, and we can't re-read the same data 941 // twice. 942 FileInputStream fis = new FileInputStream(mname); 943 boolean ambiguous = isAmbiguousMainClass(new Manifest(fis)); 944 fis.close(); 945 if (ambiguous) { 946 return false; 947 } 948 } 949 // Update the manifest. 950 Manifest old = new Manifest(zis); 951 if (newManifest != null) { 952 old.read(newManifest); 953 } 954 if (!updateManifest(old, zos)) { 955 return false; 956 } 957 } else if (moduleInfos != null && isModuleInfoEntry) { 958 moduleInfos.putIfAbsent(name, zis.readAllBytes()); 959 } else { 960 boolean isDir = e.isDirectory(); 961 if (!entryMap.containsKey(name)) { // copy the old stuff 962 // do our own compression 963 ZipEntry e2 = new ZipEntry(name); 964 e2.setMethod(e.getMethod()); 965 e2.setTime(e.getTime()); 966 e2.setComment(e.getComment()); 967 e2.setExtra(e.getExtra()); 968 if (e.getMethod() == ZipEntry.STORED) { 969 e2.setSize(e.getSize()); 970 e2.setCrc(e.getCrc()); 971 } 972 zos.putNextEntry(e2); 973 copy(zis, zos); 974 } else { // replace with the new files 975 Entry ent = entryMap.get(name); 976 addFile(zos, ent); 977 entryMap.remove(name); 978 entries.remove(ent); 979 isDir = ent.isDir; 980 } 981 if (!isDir) { 982 jentries.add(name); 983 } 984 } 985 } 986 987 // add the remaining new files 988 for (Entry entry : entries) { 989 addFile(zos, entry); 990 if (!entry.isDir) { 991 jentries.add(entry.name); 992 } 993 } 994 if (!foundManifest) { 995 if (newManifest != null) { 996 Manifest m = new Manifest(newManifest); 997 updateOk = !isAmbiguousMainClass(m); 998 if (updateOk) { 999 if (!updateManifest(m, zos)) { 1000 updateOk = false; 1001 } 1002 } 1003 } else if (ename != null) { 1004 if (!updateManifest(new Manifest(), zos)) { 1005 updateOk = false; 1006 } 1007 } 1008 } 1009 if (updateOk) { 1010 if (moduleInfos != null && !moduleInfos.isEmpty()) { 1011 Set<String> pkgs = new HashSet<>(); 1012 jentries.forEach( je -> addPackageIfNamed(pkgs, je)); 1013 addExtendedModuleAttributes(moduleInfos, pkgs); 1014 updateOk = checkModuleInfo(moduleInfos.get(MODULE_INFO), jentries); 1015 updateModuleInfo(moduleInfos, zos); 1016 // TODO: check manifest main classes, etc 1017 } else if (moduleVersion != null || modulesToHash != null) { 1018 error(getMsg("error.module.options.without.info")); 1019 updateOk = false; 1020 } 1021 } 1022 zis.close(); 1023 zos.close(); 1024 return updateOk; 1025 } 1026 1027 private void addIndex(JarIndex index, ZipOutputStream zos) 1028 throws IOException 1029 { 1030 ZipEntry e = new ZipEntry(INDEX_NAME); 1031 e.setTime(System.currentTimeMillis()); 1032 if (flag0) { 1033 CRC32OutputStream os = new CRC32OutputStream(); 1034 index.write(os); 1035 os.updateEntry(e); 1036 } 1037 zos.putNextEntry(e); 1038 index.write(zos); 1039 zos.closeEntry(); 1040 } 1041 1042 private void updateModuleInfo(Map<String,byte[]> moduleInfos, ZipOutputStream zos) 1043 throws IOException 1044 { 1045 String fmt = uflag ? "out.update.module-info": "out.added.module-info"; 1046 for (Map.Entry<String,byte[]> mi : moduleInfos.entrySet()) { 1047 String name = mi.getKey(); 1048 byte[] bytes = mi.getValue(); 1049 ZipEntry e = new ZipEntry(name); 1050 e.setTime(System.currentTimeMillis()); 1051 if (flag0) { 1052 crc32ModuleInfo(e, bytes); 1053 } 1054 zos.putNextEntry(e); 1055 zos.write(bytes); 1056 zos.closeEntry(); 1057 if (vflag) { 1058 output(formatMsg(fmt, name)); 1059 } 1060 } 1061 } 1062 1063 private boolean updateManifest(Manifest m, ZipOutputStream zos) 1064 throws IOException 1065 { 1066 addVersion(m); 1067 addCreatedBy(m); 1068 if (ename != null) { 1069 addMainClass(m, ename); 1070 } 1071 if (isMultiRelease) { 1072 addMultiRelease(m); 1073 } 1074 ZipEntry e = new ZipEntry(MANIFEST_NAME); 1075 e.setTime(System.currentTimeMillis()); 1076 if (flag0) { 1077 crc32Manifest(e, m); 1078 } 1079 zos.putNextEntry(e); 1080 m.write(zos); 1081 if (vflag) { 1082 output(getMsg("out.update.manifest")); 1083 } 1084 return true; 1085 } 1086 1087 private static final boolean isWinDriveLetter(char c) { 1088 return ((c >= 'a') && (c <= 'z')) || ((c >= 'A') && (c <= 'Z')); 1089 } 1090 1091 private String safeName(String name) { 1092 if (!pflag) { 1093 int len = name.length(); 1094 int i = name.lastIndexOf("../"); 1095 if (i == -1) { 1096 i = 0; 1097 } else { 1098 i += 3; // strip any dot-dot components 1099 } 1100 if (File.separatorChar == '\\') { 1101 // the spec requests no drive letter. skip if 1102 // the entry name has one. 1103 while (i < len) { 1104 int off = i; 1105 if (i + 1 < len && 1106 name.charAt(i + 1) == ':' && 1107 isWinDriveLetter(name.charAt(i))) { 1108 i += 2; 1109 } 1110 while (i < len && name.charAt(i) == '/') { 1111 i++; 1112 } 1113 if (i == off) { 1114 break; 1115 } 1116 } 1117 } else { 1118 while (i < len && name.charAt(i) == '/') { 1119 i++; 1120 } 1121 } 1122 if (i != 0) { 1123 name = name.substring(i); 1124 } 1125 } 1126 return name; 1127 } 1128 1129 private void addVersion(Manifest m) { 1130 Attributes global = m.getMainAttributes(); 1131 if (global.getValue(Attributes.Name.MANIFEST_VERSION) == null) { 1132 global.put(Attributes.Name.MANIFEST_VERSION, VERSION); 1133 } 1134 } 1135 1136 private void addCreatedBy(Manifest m) { 1137 Attributes global = m.getMainAttributes(); 1138 if (global.getValue(new Attributes.Name("Created-By")) == null) { 1139 String javaVendor = System.getProperty("java.vendor"); 1140 String jdkVersion = System.getProperty("java.version"); 1141 global.put(new Attributes.Name("Created-By"), jdkVersion + " (" + 1142 javaVendor + ")"); 1143 } 1144 } 1145 1146 private void addMainClass(Manifest m, String mainApp) { 1147 Attributes global = m.getMainAttributes(); 1148 1149 // overrides any existing Main-Class attribute 1150 global.put(Attributes.Name.MAIN_CLASS, mainApp); 1151 } 1152 1153 private void addMultiRelease(Manifest m) { 1154 Attributes global = m.getMainAttributes(); 1155 global.put(Attributes.Name.MULTI_RELEASE, "true"); 1156 } 1157 1158 private boolean isAmbiguousMainClass(Manifest m) { 1159 if (ename != null) { 1160 Attributes global = m.getMainAttributes(); 1161 if ((global.get(Attributes.Name.MAIN_CLASS) != null)) { 1162 usageError(getMsg("error.bad.eflag")); 1163 return true; 1164 } 1165 } 1166 return false; 1167 } 1168 1169 /** 1170 * Adds a new file entry to the ZIP output stream. 1171 */ 1172 void addFile(ZipOutputStream zos, Entry entry) throws IOException { 1173 1174 File file = entry.file; 1175 String name = entry.name; 1176 boolean isDir = entry.isDir; 1177 1178 if (name.equals("") || name.equals(".") || name.equals(zname)) { 1179 return; 1180 } else if ((name.equals(MANIFEST_DIR) || name.equals(MANIFEST_NAME)) 1181 && !Mflag) { 1182 if (vflag) { 1183 output(formatMsg("out.ignore.entry", name)); 1184 } 1185 return; 1186 } else if (name.equals(MODULE_INFO)) { 1187 throw new Error("Unexpected module info: " + name); 1188 } 1189 1190 long size = isDir ? 0 : file.length(); 1191 1192 if (vflag) { 1193 out.print(formatMsg("out.adding", name)); 1194 } 1195 ZipEntry e = new ZipEntry(name); 1196 e.setTime(file.lastModified()); 1197 if (size == 0) { 1198 e.setMethod(ZipEntry.STORED); 1199 e.setSize(0); 1200 e.setCrc(0); 1201 } else if (flag0) { 1202 crc32File(e, file); 1203 } 1204 zos.putNextEntry(e); 1205 if (!isDir) { 1206 copy(file, zos); 1207 } 1208 zos.closeEntry(); 1209 /* report how much compression occurred. */ 1210 if (vflag) { 1211 size = e.getSize(); 1212 long csize = e.getCompressedSize(); 1213 out.print(formatMsg2("out.size", String.valueOf(size), 1214 String.valueOf(csize))); 1215 if (e.getMethod() == ZipEntry.DEFLATED) { 1216 long ratio = 0; 1217 if (size != 0) { 1218 ratio = ((size - csize) * 100) / size; 1219 } 1220 output(formatMsg("out.deflated", String.valueOf(ratio))); 1221 } else { 1222 output(getMsg("out.stored")); 1223 } 1224 } 1225 } 1226 1227 /** 1228 * A buffer for use only by copy(InputStream, OutputStream). 1229 * Not as clean as allocating a new buffer as needed by copy, 1230 * but significantly more efficient. 1231 */ 1232 private byte[] copyBuf = new byte[8192]; 1233 1234 /** 1235 * Copies all bytes from the input stream to the output stream. 1236 * Does not close or flush either stream. 1237 * 1238 * @param from the input stream to read from 1239 * @param to the output stream to write to 1240 * @throws IOException if an I/O error occurs 1241 */ 1242 private void copy(InputStream from, OutputStream to) throws IOException { 1243 int n; 1244 while ((n = from.read(copyBuf)) != -1) 1245 to.write(copyBuf, 0, n); 1246 } 1247 1248 /** 1249 * Copies all bytes from the input file to the output stream. 1250 * Does not close or flush the output stream. 1251 * 1252 * @param from the input file to read from 1253 * @param to the output stream to write to 1254 * @throws IOException if an I/O error occurs 1255 */ 1256 private void copy(File from, OutputStream to) throws IOException { 1257 try (InputStream in = new FileInputStream(from)) { 1258 copy(in, to); 1259 } 1260 } 1261 1262 /** 1263 * Copies all bytes from the input stream to the output file. 1264 * Does not close the input stream. 1265 * 1266 * @param from the input stream to read from 1267 * @param to the output file to write to 1268 * @throws IOException if an I/O error occurs 1269 */ 1270 private void copy(InputStream from, File to) throws IOException { 1271 try (OutputStream out = new FileOutputStream(to)) { 1272 copy(from, out); 1273 } 1274 } 1275 1276 /** 1277 * Computes the crc32 of a module-info.class. This is necessary when the 1278 * ZipOutputStream is in STORED mode. 1279 */ 1280 private void crc32ModuleInfo(ZipEntry e, byte[] bytes) throws IOException { 1281 CRC32OutputStream os = new CRC32OutputStream(); 1282 ByteArrayInputStream in = new ByteArrayInputStream(bytes); 1283 in.transferTo(os); 1284 os.updateEntry(e); 1285 } 1286 1287 /** 1288 * Computes the crc32 of a Manifest. This is necessary when the 1289 * ZipOutputStream is in STORED mode. 1290 */ 1291 private void crc32Manifest(ZipEntry e, Manifest m) throws IOException { 1292 CRC32OutputStream os = new CRC32OutputStream(); 1293 m.write(os); 1294 os.updateEntry(e); 1295 } 1296 1297 /** 1298 * Computes the crc32 of a File. This is necessary when the 1299 * ZipOutputStream is in STORED mode. 1300 */ 1301 private void crc32File(ZipEntry e, File f) throws IOException { 1302 CRC32OutputStream os = new CRC32OutputStream(); 1303 copy(f, os); 1304 if (os.n != f.length()) { 1305 throw new JarException(formatMsg( 1306 "error.incorrect.length", f.getPath())); 1307 } 1308 os.updateEntry(e); 1309 } 1310 1311 void replaceFSC(Map<Integer, String []> filesMap) { 1312 filesMap.keySet().forEach(version -> { 1313 String[] files = filesMap.get(version); 1314 if (files != null) { 1315 for (int i = 0; i < files.length; i++) { 1316 files[i] = files[i].replace(File.separatorChar, '/'); 1317 } 1318 } 1319 }); 1320 } 1321 1322 @SuppressWarnings("serial") 1323 Set<ZipEntry> newDirSet() { 1324 return new HashSet<ZipEntry>() { 1325 public boolean add(ZipEntry e) { 1326 return ((e == null || useExtractionTime) ? false : super.add(e)); 1327 }}; 1328 } 1329 1330 void updateLastModifiedTime(Set<ZipEntry> zes) throws IOException { 1331 for (ZipEntry ze : zes) { 1332 long lastModified = ze.getTime(); 1333 if (lastModified != -1) { 1334 String name = safeName(ze.getName().replace(File.separatorChar, '/')); 1335 if (name.length() != 0) { 1336 File f = new File(name.replace('/', File.separatorChar)); 1337 f.setLastModified(lastModified); 1338 } 1339 } 1340 } 1341 } 1342 1343 /** 1344 * Extracts specified entries from JAR file. 1345 * 1346 * @return whether entries were found and successfully extracted 1347 * (indicating this was a zip file without "leading garbage") 1348 */ 1349 boolean extract(InputStream in, String files[]) throws IOException { 1350 ZipInputStream zis = new ZipInputStream(in); 1351 ZipEntry e; 1352 // Set of all directory entries specified in archive. Disallows 1353 // null entries. Disallows all entries if using pre-6.0 behavior. 1354 boolean entriesFound = false; 1355 Set<ZipEntry> dirs = newDirSet(); 1356 while ((e = zis.getNextEntry()) != null) { 1357 entriesFound = true; 1358 if (files == null) { 1359 dirs.add(extractFile(zis, e)); 1360 } else { 1361 String name = e.getName(); 1362 for (String file : files) { 1363 if (name.startsWith(file)) { 1364 dirs.add(extractFile(zis, e)); 1365 break; 1366 } 1367 } 1368 } 1369 } 1370 1371 // Update timestamps of directories specified in archive with their 1372 // timestamps as given in the archive. We do this after extraction, 1373 // instead of during, because creating a file in a directory changes 1374 // that directory's timestamp. 1375 updateLastModifiedTime(dirs); 1376 1377 return entriesFound; 1378 } 1379 1380 /** 1381 * Extracts specified entries from JAR file, via ZipFile. 1382 */ 1383 void extract(String fname, String files[]) throws IOException { 1384 ZipFile zf = new ZipFile(fname); 1385 Set<ZipEntry> dirs = newDirSet(); 1386 Enumeration<? extends ZipEntry> zes = zf.entries(); 1387 while (zes.hasMoreElements()) { 1388 ZipEntry e = zes.nextElement(); 1389 if (files == null) { 1390 dirs.add(extractFile(zf.getInputStream(e), e)); 1391 } else { 1392 String name = e.getName(); 1393 for (String file : files) { 1394 if (name.startsWith(file)) { 1395 dirs.add(extractFile(zf.getInputStream(e), e)); 1396 break; 1397 } 1398 } 1399 } 1400 } 1401 zf.close(); 1402 updateLastModifiedTime(dirs); 1403 } 1404 1405 /** 1406 * Extracts next entry from JAR file, creating directories as needed. If 1407 * the entry is for a directory which doesn't exist prior to this 1408 * invocation, returns that entry, otherwise returns null. 1409 */ 1410 ZipEntry extractFile(InputStream is, ZipEntry e) throws IOException { 1411 ZipEntry rc = null; 1412 // The spec requres all slashes MUST be forward '/', it is possible 1413 // an offending zip/jar entry may uses the backwards slash in its 1414 // name. It might cause problem on Windows platform as it skips 1415 // our "safe" check for leading slahs and dot-dot. So replace them 1416 // with '/'. 1417 String name = safeName(e.getName().replace(File.separatorChar, '/')); 1418 if (name.length() == 0) { 1419 return rc; // leading '/' or 'dot-dot' only path 1420 } 1421 File f = new File(name.replace('/', File.separatorChar)); 1422 if (e.isDirectory()) { 1423 if (f.exists()) { 1424 if (!f.isDirectory()) { 1425 throw new IOException(formatMsg("error.create.dir", 1426 f.getPath())); 1427 } 1428 } else { 1429 if (!f.mkdirs()) { 1430 throw new IOException(formatMsg("error.create.dir", 1431 f.getPath())); 1432 } else { 1433 rc = e; 1434 } 1435 } 1436 1437 if (vflag) { 1438 output(formatMsg("out.create", name)); 1439 } 1440 } else { 1441 if (f.getParent() != null) { 1442 File d = new File(f.getParent()); 1443 if (!d.exists() && !d.mkdirs() || !d.isDirectory()) { 1444 throw new IOException(formatMsg( 1445 "error.create.dir", d.getPath())); 1446 } 1447 } 1448 try { 1449 copy(is, f); 1450 } finally { 1451 if (is instanceof ZipInputStream) 1452 ((ZipInputStream)is).closeEntry(); 1453 else 1454 is.close(); 1455 } 1456 if (vflag) { 1457 if (e.getMethod() == ZipEntry.DEFLATED) { 1458 output(formatMsg("out.inflated", name)); 1459 } else { 1460 output(formatMsg("out.extracted", name)); 1461 } 1462 } 1463 } 1464 if (!useExtractionTime) { 1465 long lastModified = e.getTime(); 1466 if (lastModified != -1) { 1467 f.setLastModified(lastModified); 1468 } 1469 } 1470 return rc; 1471 } 1472 1473 /** 1474 * Lists contents of JAR file. 1475 */ 1476 void list(InputStream in, String files[]) throws IOException { 1477 ZipInputStream zis = new ZipInputStream(in); 1478 ZipEntry e; 1479 while ((e = zis.getNextEntry()) != null) { 1480 /* 1481 * In the case of a compressed (deflated) entry, the entry size 1482 * is stored immediately following the entry data and cannot be 1483 * determined until the entry is fully read. Therefore, we close 1484 * the entry first before printing out its attributes. 1485 */ 1486 zis.closeEntry(); 1487 printEntry(e, files); 1488 } 1489 } 1490 1491 /** 1492 * Lists contents of JAR file, via ZipFile. 1493 */ 1494 void list(String fname, String files[]) throws IOException { 1495 ZipFile zf = new ZipFile(fname); 1496 Enumeration<? extends ZipEntry> zes = zf.entries(); 1497 while (zes.hasMoreElements()) { 1498 printEntry(zes.nextElement(), files); 1499 } 1500 zf.close(); 1501 } 1502 1503 /** 1504 * Outputs the class index table to the INDEX.LIST file of the 1505 * root jar file. 1506 */ 1507 void dumpIndex(String rootjar, JarIndex index) throws IOException { 1508 File jarFile = new File(rootjar); 1509 Path jarPath = jarFile.toPath(); 1510 Path tmpPath = createTempFileInSameDirectoryAs(jarFile).toPath(); 1511 try { 1512 if (update(Files.newInputStream(jarPath), 1513 Files.newOutputStream(tmpPath), 1514 null, null, index)) { 1515 try { 1516 Files.move(tmpPath, jarPath, REPLACE_EXISTING); 1517 } catch (IOException e) { 1518 throw new IOException(getMsg("error.write.file"), e); 1519 } 1520 } 1521 } finally { 1522 Files.deleteIfExists(tmpPath); 1523 } 1524 } 1525 1526 private HashSet<String> jarPaths = new HashSet<String>(); 1527 1528 /** 1529 * Generates the transitive closure of the Class-Path attribute for 1530 * the specified jar file. 1531 */ 1532 List<String> getJarPath(String jar) throws IOException { 1533 List<String> files = new ArrayList<String>(); 1534 files.add(jar); 1535 jarPaths.add(jar); 1536 1537 // take out the current path 1538 String path = jar.substring(0, Math.max(0, jar.lastIndexOf('/') + 1)); 1539 1540 // class path attribute will give us jar file name with 1541 // '/' as separators, so we need to change them to the 1542 // appropriate one before we open the jar file. 1543 JarFile rf = new JarFile(jar.replace('/', File.separatorChar)); 1544 1545 if (rf != null) { 1546 Manifest man = rf.getManifest(); 1547 if (man != null) { 1548 Attributes attr = man.getMainAttributes(); 1549 if (attr != null) { 1550 String value = attr.getValue(Attributes.Name.CLASS_PATH); 1551 if (value != null) { 1552 StringTokenizer st = new StringTokenizer(value); 1553 while (st.hasMoreTokens()) { 1554 String ajar = st.nextToken(); 1555 if (!ajar.endsWith("/")) { // it is a jar file 1556 ajar = path.concat(ajar); 1557 /* check on cyclic dependency */ 1558 if (! jarPaths.contains(ajar)) { 1559 files.addAll(getJarPath(ajar)); 1560 } 1561 } 1562 } 1563 } 1564 } 1565 } 1566 } 1567 rf.close(); 1568 return files; 1569 } 1570 1571 /** 1572 * Generates class index file for the specified root jar file. 1573 */ 1574 void genIndex(String rootjar, String[] files) throws IOException { 1575 List<String> jars = getJarPath(rootjar); 1576 int njars = jars.size(); 1577 String[] jarfiles; 1578 1579 if (njars == 1 && files != null) { 1580 // no class-path attribute defined in rootjar, will 1581 // use command line specified list of jars 1582 for (int i = 0; i < files.length; i++) { 1583 jars.addAll(getJarPath(files[i])); 1584 } 1585 njars = jars.size(); 1586 } 1587 jarfiles = jars.toArray(new String[njars]); 1588 JarIndex index = new JarIndex(jarfiles); 1589 dumpIndex(rootjar, index); 1590 } 1591 1592 /** 1593 * Prints entry information, if requested. 1594 */ 1595 void printEntry(ZipEntry e, String[] files) throws IOException { 1596 if (files == null) { 1597 printEntry(e); 1598 } else { 1599 String name = e.getName(); 1600 for (String file : files) { 1601 if (name.startsWith(file)) { 1602 printEntry(e); 1603 return; 1604 } 1605 } 1606 } 1607 } 1608 1609 /** 1610 * Prints entry information. 1611 */ 1612 void printEntry(ZipEntry e) throws IOException { 1613 if (vflag) { 1614 StringBuilder sb = new StringBuilder(); 1615 String s = Long.toString(e.getSize()); 1616 for (int i = 6 - s.length(); i > 0; --i) { 1617 sb.append(' '); 1618 } 1619 sb.append(s).append(' ').append(new Date(e.getTime()).toString()); 1620 sb.append(' ').append(e.getName()); 1621 output(sb.toString()); 1622 } else { 1623 output(e.getName()); 1624 } 1625 } 1626 1627 /** 1628 * Prints usage message. 1629 */ 1630 void usageError(String s) { 1631 err.println(s); 1632 err.println(getMsg("main.usage.summary.try")); 1633 } 1634 1635 /** 1636 * A fatal exception has been caught. No recovery possible 1637 */ 1638 void fatalError(Exception e) { 1639 e.printStackTrace(); 1640 } 1641 1642 /** 1643 * A fatal condition has been detected; message is "s". 1644 * No recovery possible 1645 */ 1646 void fatalError(String s) { 1647 error(program + ": " + s); 1648 } 1649 1650 /** 1651 * Print an output message; like verbose output and the like 1652 */ 1653 protected void output(String s) { 1654 out.println(s); 1655 } 1656 1657 /** 1658 * Print an error message; like something is broken 1659 */ 1660 void error(String s) { 1661 err.println(s); 1662 } 1663 1664 /** 1665 * Print a warning message 1666 */ 1667 void warn(String s) { 1668 err.println(s); 1669 } 1670 1671 /** 1672 * Main routine to start program. 1673 */ 1674 public static void main(String args[]) { 1675 Main jartool = new Main(System.out, System.err, "jar"); 1676 System.exit(jartool.run(args) ? 0 : 1); 1677 } 1678 1679 /** 1680 * An OutputStream that doesn't send its output anywhere, (but could). 1681 * It's here to find the CRC32 of an input file, necessary for STORED 1682 * mode in ZIP. 1683 */ 1684 private static class CRC32OutputStream extends java.io.OutputStream { 1685 final CRC32 crc = new CRC32(); 1686 long n = 0; 1687 1688 CRC32OutputStream() {} 1689 1690 public void write(int r) throws IOException { 1691 crc.update(r); 1692 n++; 1693 } 1694 1695 public void write(byte[] b, int off, int len) throws IOException { 1696 crc.update(b, off, len); 1697 n += len; 1698 } 1699 1700 /** 1701 * Updates a ZipEntry which describes the data read by this 1702 * output stream, in STORED mode. 1703 */ 1704 public void updateEntry(ZipEntry e) { 1705 e.setMethod(ZipEntry.STORED); 1706 e.setSize(n); 1707 e.setCrc(crc.getValue()); 1708 } 1709 } 1710 1711 /** 1712 * Attempt to create temporary file in the system-provided temporary folder, if failed attempts 1713 * to create it in the same folder as the file in parameter (if any) 1714 */ 1715 private File createTemporaryFile(String tmpbase, String suffix) { 1716 File tmpfile = null; 1717 1718 try { 1719 tmpfile = File.createTempFile(tmpbase, suffix); 1720 } catch (IOException | SecurityException e) { 1721 // Unable to create file due to permission violation or security exception 1722 } 1723 if (tmpfile == null) { 1724 // Were unable to create temporary file, fall back to temporary file in the same folder 1725 if (fname != null) { 1726 try { 1727 File tmpfolder = new File(fname).getAbsoluteFile().getParentFile(); 1728 tmpfile = File.createTempFile(fname, ".tmp" + suffix, tmpfolder); 1729 } catch (IOException ioe) { 1730 // Last option failed - fall gracefully 1731 fatalError(ioe); 1732 } 1733 } else { 1734 // No options left - we can not compress to stdout without access to the temporary folder 1735 fatalError(new IOException(getMsg("error.create.tempfile"))); 1736 } 1737 } 1738 return tmpfile; 1739 } 1740 1741 // Modular jar support 1742 1743 /** 1744 * Associates a module descriptor's zip entry name along with its 1745 * bytes and an optional URI. Used when describing modules. 1746 */ 1747 interface ModuleInfoEntry { 1748 String name(); 1749 Optional<String> uriString(); 1750 InputStream bytes() throws IOException; 1751 } 1752 1753 static class ZipFileModuleInfoEntry implements ModuleInfoEntry { 1754 private final ZipFile zipFile; 1755 private final ZipEntry entry; 1756 ZipFileModuleInfoEntry(ZipFile zipFile, ZipEntry entry) { 1757 this.zipFile = zipFile; 1758 this.entry = entry; 1759 } 1760 @Override public String name() { return entry.getName(); } 1761 @Override public InputStream bytes() throws IOException { 1762 return zipFile.getInputStream(entry); 1763 } 1764 /** Returns an optional containing the effective URI. */ 1765 @Override public Optional<String> uriString() { 1766 String uri = (Paths.get(zipFile.getName())).toUri().toString(); 1767 uri = "jar:" + uri + "/!" + entry.getName(); 1768 return Optional.of(uri); 1769 } 1770 } 1771 1772 static class StreamedModuleInfoEntry implements ModuleInfoEntry { 1773 private final String name; 1774 private final byte[] bytes; 1775 StreamedModuleInfoEntry(String name, byte[] bytes) { 1776 this.name = name; 1777 this.bytes = bytes; 1778 } 1779 @Override public String name() { return name; } 1780 @Override public InputStream bytes() throws IOException { 1781 return new ByteArrayInputStream(bytes); 1782 } 1783 /** Returns an empty optional. */ 1784 @Override public Optional<String> uriString() { 1785 return Optional.empty(); // no URI can be derived 1786 } 1787 } 1788 1789 /** Describes a module from a given zip file. */ 1790 private boolean describeModule(ZipFile zipFile) throws IOException { 1791 ZipFileModuleInfoEntry[] infos = zipFile.stream() 1792 .filter(e -> isModuleInfoEntry(e.getName())) 1793 .sorted(ENTRY_COMPARATOR) 1794 .map(e -> new ZipFileModuleInfoEntry(zipFile, e)) 1795 .toArray(ZipFileModuleInfoEntry[]::new); 1796 1797 if (infos.length == 0) { 1798 // No module descriptor found, derive and describe the automatic module 1799 String fn = zipFile.getName(); 1800 ModuleFinder mf = ModuleFinder.of(Paths.get(fn)); 1801 try { 1802 Set<ModuleReference> mref = mf.findAll(); 1803 if (mref.isEmpty()) { 1804 output(formatMsg("error.unable.derive.automodule", fn)); 1805 return true; 1806 } 1807 ModuleDescriptor md = mref.iterator().next().descriptor(); 1808 output(getMsg("out.automodule") + "\n"); 1809 describeModule(md, null, null, ""); 1810 } catch (FindException e) { 1811 String msg = formatMsg("error.unable.derive.automodule", fn); 1812 Throwable t = e.getCause(); 1813 if (t != null) 1814 msg = msg + "\n" + t.getMessage(); 1815 output(msg); 1816 } 1817 } else { 1818 return describeModuleFromEntries(infos); 1819 } 1820 return true; 1821 } 1822 1823 private boolean describeModuleFromStream(FileInputStream fis) 1824 throws IOException 1825 { 1826 List<ModuleInfoEntry> infos = new LinkedList<>(); 1827 1828 try (BufferedInputStream bis = new BufferedInputStream(fis); 1829 ZipInputStream zis = new ZipInputStream(bis)) { 1830 ZipEntry e; 1831 while ((e = zis.getNextEntry()) != null) { 1832 String ename = e.getName(); 1833 if (isModuleInfoEntry(ename)) { 1834 infos.add(new StreamedModuleInfoEntry(ename, zis.readAllBytes())); 1835 } 1836 } 1837 } 1838 1839 if (infos.size() == 0) 1840 return false; 1841 1842 ModuleInfoEntry[] sorted = infos.stream() 1843 .sorted(Comparator.comparing(ModuleInfoEntry::name, ENTRYNAME_COMPARATOR)) 1844 .toArray(ModuleInfoEntry[]::new); 1845 1846 return describeModuleFromEntries(sorted); 1847 } 1848 1849 private boolean lessThanEqualReleaseValue(ModuleInfoEntry entry) { 1850 return intVersionFromEntry(entry) <= releaseValue ? true : false; 1851 } 1852 1853 private static String versionFromEntryName(String name) { 1854 String s = name.substring(VERSIONS_DIR_LENGTH); 1855 return s.substring(0, s.indexOf("/")); 1856 } 1857 1858 private static int intVersionFromEntry(ModuleInfoEntry entry) { 1859 String name = entry.name(); 1860 if (!name.startsWith(VERSIONS_DIR)) 1861 return BASE_VERSION; 1862 1863 String s = name.substring(VERSIONS_DIR_LENGTH); 1864 s = s.substring(0, s.indexOf('/')); 1865 return Integer.valueOf(s); 1866 } 1867 1868 /** 1869 * Describes a single module descriptor, determined by the specified 1870 * --release, if any, from the given ordered entries. 1871 * The given infos must be ordered as per ENTRY_COMPARATOR. 1872 */ 1873 private boolean describeModuleFromEntries(ModuleInfoEntry[] infos) 1874 throws IOException 1875 { 1876 assert infos.length > 0; 1877 1878 // Informative: output all non-root descriptors, if any 1879 String releases = Arrays.stream(infos) 1880 .filter(e -> !e.name().equals(MODULE_INFO)) 1881 .map(ModuleInfoEntry::name) 1882 .map(Main::versionFromEntryName) 1883 .collect(joining(" ")); 1884 if (!releases.equals("")) 1885 output("releases: " + releases + "\n"); 1886 1887 // Describe the operative descriptor for the specified --release, if any 1888 if (releaseValue != -1) { 1889 ModuleInfoEntry entry = null; 1890 int i = 0; 1891 while (i < infos.length && lessThanEqualReleaseValue(infos[i])) { 1892 entry = infos[i]; 1893 i++; 1894 } 1895 1896 if (entry == null) { 1897 output(formatMsg("error.no.operative.descriptor", 1898 String.valueOf(releaseValue))); 1899 return false; 1900 } 1901 1902 String uriString = entry.uriString().orElse(""); 1903 try (InputStream is = entry.bytes()) { 1904 describeModule(is, uriString); 1905 } 1906 } else { 1907 // no specific --release specified, output the root, if any 1908 if (infos[0].name().equals(MODULE_INFO)) { 1909 String uriString = infos[0].uriString().orElse(""); 1910 try (InputStream is = infos[0].bytes()) { 1911 describeModule(is, uriString); 1912 } 1913 } else { 1914 // no root, output message to specify --release 1915 output(getMsg("error.no.root.descriptor")); 1916 } 1917 } 1918 return true; 1919 } 1920 1921 static <T> String toLowerCaseString(Collection<T> set) { 1922 if (set.isEmpty()) { return ""; } 1923 return " " + set.stream().map(e -> e.toString().toLowerCase(Locale.ROOT)) 1924 .sorted().collect(joining(" ")); 1925 } 1926 1927 static <T> String toString(Collection<T> set) { 1928 if (set.isEmpty()) { return ""; } 1929 return " " + set.stream().map(e -> e.toString()).sorted().collect(joining(" ")); 1930 } 1931 1932 private void describeModule(InputStream entryInputStream, String uriString) 1933 throws IOException 1934 { 1935 ModuleInfo.Attributes attrs = ModuleInfo.read(entryInputStream, null); 1936 ModuleDescriptor md = attrs.descriptor(); 1937 ModuleTarget target = attrs.target(); 1938 ModuleHashes hashes = attrs.recordedHashes(); 1939 1940 describeModule(md, target, hashes, uriString); 1941 } 1942 1943 private void describeModule(ModuleDescriptor md, 1944 ModuleTarget target, 1945 ModuleHashes hashes, 1946 String uriString) 1947 throws IOException 1948 { 1949 StringBuilder sb = new StringBuilder(); 1950 1951 sb.append(md.toNameAndVersion()); 1952 1953 if (!uriString.equals("")) 1954 sb.append(" ").append(uriString); 1955 if (md.isOpen()) 1956 sb.append(" open"); 1957 if (md.isAutomatic()) 1958 sb.append(" automatic"); 1959 sb.append("\n"); 1960 1961 // unqualified exports (sorted by package) 1962 md.exports().stream() 1963 .sorted(Comparator.comparing(Exports::source)) 1964 .filter(e -> !e.isQualified()) 1965 .forEach(e -> sb.append("exports ").append(e.source()) 1966 .append(toLowerCaseString(e.modifiers())) 1967 .append("\n")); 1968 1969 // dependences 1970 md.requires().stream().sorted() 1971 .forEach(r -> sb.append("requires ").append(r.name()) 1972 .append(toLowerCaseString(r.modifiers())) 1973 .append("\n")); 1974 1975 // service use and provides 1976 md.uses().stream().sorted() 1977 .forEach(s -> sb.append("uses ").append(s).append("\n")); 1978 1979 md.provides().stream() 1980 .sorted(Comparator.comparing(Provides::service)) 1981 .forEach(p -> sb.append("provides ").append(p.service()) 1982 .append(" with") 1983 .append(toString(p.providers())) 1984 .append("\n")); 1985 1986 // qualified exports 1987 md.exports().stream() 1988 .sorted(Comparator.comparing(Exports::source)) 1989 .filter(Exports::isQualified) 1990 .forEach(e -> sb.append("qualified exports ").append(e.source()) 1991 .append(" to").append(toLowerCaseString(e.targets())) 1992 .append("\n")); 1993 1994 // open packages 1995 md.opens().stream() 1996 .sorted(Comparator.comparing(Opens::source)) 1997 .filter(o -> !o.isQualified()) 1998 .forEach(o -> sb.append("opens ").append(o.source()) 1999 .append(toLowerCaseString(o.modifiers())) 2000 .append("\n")); 2001 2002 md.opens().stream() 2003 .sorted(Comparator.comparing(Opens::source)) 2004 .filter(Opens::isQualified) 2005 .forEach(o -> sb.append("qualified opens ").append(o.source()) 2006 .append(toLowerCaseString(o.modifiers())) 2007 .append(" to").append(toLowerCaseString(o.targets())) 2008 .append("\n")); 2009 2010 // non-exported/non-open packages 2011 Set<String> concealed = new TreeSet<>(md.packages()); 2012 md.exports().stream().map(Exports::source).forEach(concealed::remove); 2013 md.opens().stream().map(Opens::source).forEach(concealed::remove); 2014 concealed.forEach(p -> sb.append("contains ").append(p).append("\n")); 2015 2016 md.mainClass().ifPresent(v -> sb.append("main-class ").append(v).append("\n")); 2017 2018 if (target != null) { 2019 String targetPlatform = target.targetPlatform(); 2020 if (!targetPlatform.isEmpty()) 2021 sb.append("platform ").append(targetPlatform).append("\n"); 2022 } 2023 2024 if (hashes != null) { 2025 hashes.names().stream().sorted().forEach( 2026 mod -> sb.append("hashes ").append(mod).append(" ") 2027 .append(hashes.algorithm()).append(" ") 2028 .append(toHex(hashes.hashFor(mod))) 2029 .append("\n")); 2030 } 2031 2032 output(sb.toString()); 2033 } 2034 2035 private static String toHex(byte[] ba) { 2036 StringBuilder sb = new StringBuilder(ba.length << 1); 2037 for (byte b: ba) { 2038 sb.append(String.format("%02x", b & 0xff)); 2039 } 2040 return sb.toString(); 2041 } 2042 2043 static String toBinaryName(String classname) { 2044 return (classname.replace('.', '/')) + ".class"; 2045 } 2046 2047 private boolean checkModuleInfo(byte[] moduleInfoBytes, Set<String> entries) 2048 throws IOException 2049 { 2050 boolean ok = true; 2051 if (moduleInfoBytes != null) { // no root module-info.class if null 2052 try { 2053 // ModuleDescriptor.read() checks open/exported pkgs vs packages 2054 ModuleDescriptor md = ModuleDescriptor.read(ByteBuffer.wrap(moduleInfoBytes)); 2055 // A module must have the implementation class of the services it 'provides'. 2056 if (md.provides().stream().map(Provides::providers).flatMap(List::stream) 2057 .filter(p -> !entries.contains(toBinaryName(p))) 2058 .peek(p -> fatalError(formatMsg("error.missing.provider", p))) 2059 .count() != 0) { 2060 ok = false; 2061 } 2062 } catch (InvalidModuleDescriptorException x) { 2063 fatalError(x.getMessage()); 2064 ok = false; 2065 } 2066 } 2067 return ok; 2068 } 2069 2070 /** 2071 * Adds extended modules attributes to the given module-info's. The given 2072 * Map values are updated in-place. Returns false if an error occurs. 2073 */ 2074 private void addExtendedModuleAttributes(Map<String,byte[]> moduleInfos, 2075 Set<String> packages) 2076 throws IOException 2077 { 2078 for (Map.Entry<String,byte[]> e: moduleInfos.entrySet()) { 2079 ModuleDescriptor md = ModuleDescriptor.read(ByteBuffer.wrap(e.getValue())); 2080 e.setValue(extendedInfoBytes(md, e.getValue(), packages)); 2081 } 2082 } 2083 2084 static boolean isModuleInfoEntry(String name) { 2085 // root or versioned module-info.class 2086 if (name.endsWith(MODULE_INFO)) { 2087 int end = name.length() - MODULE_INFO.length(); 2088 if (end == 0) 2089 return true; 2090 if (name.startsWith(VERSIONS_DIR)) { 2091 int off = VERSIONS_DIR_LENGTH; 2092 if (off == end) // meta-inf/versions/module-info.class 2093 return false; 2094 while (off < end - 1) { 2095 char c = name.charAt(off++); 2096 if (c < '0' || c > '9') 2097 return false; 2098 } 2099 return name.charAt(off) == '/'; 2100 } 2101 } 2102 return false; 2103 } 2104 2105 /** 2106 * Returns a byte array containing the given module-info.class plus any 2107 * extended attributes. 2108 * 2109 * If --module-version, --main-class, or other options were provided 2110 * then the corresponding class file attributes are added to the 2111 * module-info here. 2112 */ 2113 private byte[] extendedInfoBytes(ModuleDescriptor md, 2114 byte[] miBytes, 2115 Set<String> packages) 2116 throws IOException 2117 { 2118 ByteArrayOutputStream baos = new ByteArrayOutputStream(); 2119 InputStream is = new ByteArrayInputStream(miBytes); 2120 ModuleInfoExtender extender = ModuleInfoExtender.newExtender(is); 2121 2122 // Add (or replace) the Packages attribute 2123 extender.packages(packages); 2124 2125 // --main-class 2126 if (ename != null) 2127 extender.mainClass(ename); 2128 2129 // --module-version 2130 if (moduleVersion != null) 2131 extender.version(moduleVersion); 2132 2133 // --hash-modules 2134 if (modulesToHash != null) { 2135 String mn = md.name(); 2136 Hasher hasher = new Hasher(md, fname); 2137 ModuleHashes moduleHashes = hasher.computeHashes(mn); 2138 if (moduleHashes != null) { 2139 extender.hashes(moduleHashes); 2140 } else { 2141 warn("warning: no module is recorded in hash in " + mn); 2142 } 2143 } 2144 2145 if (moduleResolution.value() != 0) { 2146 extender.moduleResolution(moduleResolution); 2147 } 2148 2149 extender.write(baos); 2150 return baos.toByteArray(); 2151 } 2152 2153 /** 2154 * Compute and record hashes 2155 */ 2156 private class Hasher { 2157 final ModuleHashesBuilder hashesBuilder; 2158 final ModuleFinder finder; 2159 final Set<String> modules; 2160 Hasher(ModuleDescriptor descriptor, String fname) throws IOException { 2161 // Create a module finder that finds the modular JAR 2162 // being created/updated 2163 URI uri = Paths.get(fname).toUri(); 2164 ModuleReference mref = new ModuleReference(descriptor, uri) { 2165 @Override 2166 public ModuleReader open() { 2167 throw new UnsupportedOperationException("should not reach here"); 2168 } 2169 }; 2170 2171 // Compose a module finder with the module path and 2172 // the modular JAR being created or updated 2173 this.finder = ModuleFinder.compose(moduleFinder, 2174 new ModuleFinder() { 2175 @Override 2176 public Optional<ModuleReference> find(String name) { 2177 if (descriptor.name().equals(name)) 2178 return Optional.of(mref); 2179 else 2180 return Optional.empty(); 2181 } 2182 2183 @Override 2184 public Set<ModuleReference> findAll() { 2185 return Collections.singleton(mref); 2186 } 2187 }); 2188 2189 // Determine the modules that matches the pattern {@code modulesToHash} 2190 Set<String> roots = finder.findAll().stream() 2191 .map(ref -> ref.descriptor().name()) 2192 .filter(mn -> modulesToHash.matcher(mn).find()) 2193 .collect(Collectors.toSet()); 2194 2195 // use system module path unless it creates a modular JAR for 2196 // a module that is present in the system image e.g. upgradeable 2197 // module 2198 ModuleFinder system; 2199 String name = descriptor.name(); 2200 if (name != null && ModuleFinder.ofSystem().find(name).isPresent()) { 2201 system = ModuleFinder.of(); 2202 } else { 2203 system = ModuleFinder.ofSystem(); 2204 } 2205 // get a resolved module graph 2206 Configuration config = 2207 Configuration.empty().resolve(system, finder, roots); 2208 2209 // filter modules resolved from the system module finder 2210 this.modules = config.modules().stream() 2211 .map(ResolvedModule::name) 2212 .filter(mn -> roots.contains(mn) && !system.find(mn).isPresent()) 2213 .collect(Collectors.toSet()); 2214 2215 this.hashesBuilder = new ModuleHashesBuilder(config, modules); 2216 } 2217 2218 /** 2219 * Compute hashes of the specified module. 2220 * 2221 * It records the hashing modules that depend upon the specified 2222 * module directly or indirectly. 2223 */ 2224 ModuleHashes computeHashes(String name) { 2225 if (hashesBuilder == null) 2226 return null; 2227 2228 return hashesBuilder.computeHashes(Set.of(name)).get(name); 2229 } 2230 } 2231 2232 // sort base entries before versioned entries, and sort entry classes with 2233 // nested classes so that the outter class appears before the associated 2234 // nested class 2235 static Comparator<String> ENTRYNAME_COMPARATOR = (s1, s2) -> { 2236 2237 if (s1.equals(s2)) return 0; 2238 boolean b1 = s1.startsWith(VERSIONS_DIR); 2239 boolean b2 = s2.startsWith(VERSIONS_DIR); 2240 if (b1 && !b2) return 1; 2241 if (!b1 && b2) return -1; 2242 int n = 0; // starting char for String compare 2243 if (b1 && b2) { 2244 // normally strings would be sorted so "10" goes before "9", but 2245 // version number strings need to be sorted numerically 2246 n = VERSIONS_DIR.length(); // skip the common prefix 2247 int i1 = s1.indexOf('/', n); 2248 int i2 = s2.indexOf('/', n); 2249 if (i1 == -1) throw new Validator.InvalidJarException(s1); 2250 if (i2 == -1) throw new Validator.InvalidJarException(s2); 2251 // shorter version numbers go first 2252 if (i1 != i2) return i1 - i2; 2253 // otherwise, handle equal length numbers below 2254 } 2255 int l1 = s1.length(); 2256 int l2 = s2.length(); 2257 int lim = Math.min(l1, l2); 2258 for (int k = n; k < lim; k++) { 2259 char c1 = s1.charAt(k); 2260 char c2 = s2.charAt(k); 2261 if (c1 != c2) { 2262 // change natural ordering so '.' comes before '$' 2263 // i.e. outer classes come before nested classes 2264 if (c1 == '$' && c2 == '.') return 1; 2265 if (c1 == '.' && c2 == '$') return -1; 2266 return c1 - c2; 2267 } 2268 } 2269 return l1 - l2; 2270 }; 2271 2272 static Comparator<ZipEntry> ENTRY_COMPARATOR = 2273 Comparator.comparing(ZipEntry::getName, ENTRYNAME_COMPARATOR); 2274 2275 }