Ejemplo n.º 1
0
 public InputStream getInputStream(final ZipEntry ze) throws IOException, ZipException {
   if (!(ze instanceof Entry)) {
     return null;
   }
   final OffsetEntry offsetEntry = ((Entry) ze).getOffsetEntry();
   ZipUtil.checkRequestedFeatures(ze);
   final long start = offsetEntry.dataOffset;
   final BoundedInputStream bis = new BoundedInputStream(start, ze.getCompressedSize());
   switch (ze.getMethod()) {
     case 0:
       {
         return bis;
       }
     case 8:
       {
         bis.addDummy();
         final Inflater inflater = new Inflater(true);
         return new InflaterInputStream(bis, inflater) {
           public void close() throws IOException {
             super.close();
             inflater.end();
           }
         };
       }
     default:
       {
         throw new ZipException("Found unsupported compression method " + ze.getMethod());
       }
   }
 }
Ejemplo n.º 2
0
  /**
   * Returns the options of an archive.
   *
   * @param ctx query context
   * @return entries
   * @throws QueryException query exception
   */
  private FElem options(final QueryContext ctx) throws QueryException {
    final B64 archive = (B64) checkType(checkItem(expr[0], ctx), AtomType.B64);
    String format = null;
    int level = -1;

    final ArchiveIn arch = ArchiveIn.get(archive.input(info), info);
    try {
      format = arch.format();
      while (arch.more()) {
        final ZipEntry ze = arch.entry();
        if (ze.isDirectory()) continue;
        level = ze.getMethod();
        break;
      }
    } catch (final IOException ex) {
      Util.debug(ex);
      ARCH_FAIL.thrw(info, ex);
    } finally {
      arch.close();
    }

    // create result element
    final FElem e = new FElem(Q_OPTIONS, NS);
    if (format != null) e.add(new FElem(Q_FORMAT).add(Q_VALUE, format));
    if (level >= 0) {
      final byte[] lvl = level == 8 ? DEFLATE : level == 0 ? STORED : UNKNOWN;
      e.add(new FElem(Q_ALGORITHM).add(Q_VALUE, lvl));
    }
    return e;
  }
 /**
  * Dumps a zip entry into a string.
  *
  * @param ze a ZipEntry
  */
 private String dumpZipEntry(ZipEntry ze) {
   StringBuffer sb = new StringBuffer();
   if (ze.isDirectory()) {
     sb.append("d ");
   } else {
     sb.append("f ");
   }
   if (ze.getMethod() == ZipEntry.STORED) {
     sb.append("stored   ");
   } else {
     sb.append("defalted ");
   }
   sb.append(ze.getName());
   sb.append("\t");
   sb.append("" + ze.getSize());
   if (ze.getMethod() == ZipEntry.DEFLATED) {
     sb.append("/" + ze.getCompressedSize());
   }
   return (sb.toString());
 }
Ejemplo n.º 4
0
  /** Adds a new file entry to the ZIP output stream. */
  void addFile(ZipOutputStream zos, File file) throws IOException {
    String name = file.getPath();
    boolean isDir = file.isDirectory();
    if (isDir) {
      name = name.endsWith(File.separator) ? name : (name + File.separator);
    }
    name = entryName(name);

    if (name.equals("") || name.equals(".") || name.equals(zname)) {
      return;
    } else if ((name.equals(MANIFEST_DIR) || name.equals(MANIFEST_NAME)) && !Mflag) {
      if (vflag) {
        output(formatMsg("out.ignore.entry", name));
      }
      return;
    }

    long size = isDir ? 0 : file.length();

    if (vflag) {
      out.print(formatMsg("out.adding", name));
    }
    ZipEntry e = new ZipEntry(name);
    e.setTime(file.lastModified());
    if (size == 0) {
      e.setMethod(ZipEntry.STORED);
      e.setSize(0);
      e.setCrc(0);
    } else if (flag0) {
      crc32File(e, file);
    }
    zos.putNextEntry(e);
    if (!isDir) {
      copy(file, zos);
    }
    zos.closeEntry();
    /* report how much compression occurred. */
    if (vflag) {
      size = e.getSize();
      long csize = e.getCompressedSize();
      out.print(formatMsg2("out.size", String.valueOf(size), String.valueOf(csize)));
      if (e.getMethod() == ZipEntry.DEFLATED) {
        long ratio = 0;
        if (size != 0) {
          ratio = ((size - csize) * 100) / size;
        }
        output(formatMsg("out.deflated", String.valueOf(ratio)));
      } else {
        output(getMsg("out.stored"));
      }
    }
  }
Ejemplo n.º 5
0
  /**
   * Extracts next entry from JAR file, creating directories as needed. If the entry is for a
   * directory which doesn't exist prior to this invocation, returns that entry, otherwise returns
   * null.
   */
  ZipEntry extractFile(InputStream is, ZipEntry e) throws IOException {
    ZipEntry rc = null;
    String name = e.getName();
    File f = new File(e.getName().replace('/', File.separatorChar));
    if (e.isDirectory()) {
      if (f.exists()) {
        if (!f.isDirectory()) {
          throw new IOException(formatMsg("error.create.dir", f.getPath()));
        }
      } else {
        if (!f.mkdirs()) {
          throw new IOException(formatMsg("error.create.dir", f.getPath()));
        } else {
          rc = e;
        }
      }

      if (vflag) {
        output(formatMsg("out.create", name));
      }
    } else {
      if (f.getParent() != null) {
        File d = new File(f.getParent());
        if (!d.exists() && !d.mkdirs() || !d.isDirectory()) {
          throw new IOException(formatMsg("error.create.dir", d.getPath()));
        }
      }
      try {
        copy(is, f);
      } finally {
        if (is instanceof ZipInputStream) ((ZipInputStream) is).closeEntry();
        else is.close();
      }
      if (vflag) {
        if (e.getMethod() == ZipEntry.DEFLATED) {
          output(formatMsg("out.inflated", name));
        } else {
          output(formatMsg("out.extracted", name));
        }
      }
    }
    if (!useExtractionTime) {
      long lastModified = e.getTime();
      if (lastModified != -1) {
        f.setLastModified(lastModified);
      }
    }
    return rc;
  }
Ejemplo n.º 6
0
// =============================================================================
Ejemplo n.º 7
0
  /** Updates an existing jar file. */
  boolean update(InputStream in, OutputStream out, InputStream newManifest, JarIndex jarIndex)
      throws IOException {
    ZipInputStream zis = new ZipInputStream(in);
    ZipOutputStream zos = new JarOutputStream(out);
    ZipEntry e = null;
    boolean foundManifest = false;
    boolean updateOk = true;

    if (jarIndex != null) {
      addIndex(jarIndex, zos);
    }

    // put the old entries first, replace if necessary
    while ((e = zis.getNextEntry()) != null) {
      String name = e.getName();

      boolean isManifestEntry = equalsIgnoreCase(name, MANIFEST_NAME);

      if ((jarIndex != null && equalsIgnoreCase(name, INDEX_NAME)) || (Mflag && isManifestEntry)) {
        continue;
      } else if (isManifestEntry && ((newManifest != null) || (ename != null) || (pname != null))) {
        foundManifest = true;
        if (newManifest != null) {
          // Don't read from the newManifest InputStream, as we
          // might need it below, and we can't re-read the same data
          // twice.
          FileInputStream fis = new FileInputStream(mname);
          boolean ambiguous = isAmbiguousMainClass(new Manifest(fis));
          fis.close();
          if (ambiguous) {
            return false;
          }
        }

        // Update the manifest.
        Manifest old = new Manifest(zis);
        if (newManifest != null) {
          old.read(newManifest);
        }
        if (!updateManifest(old, zos)) {
          return false;
        }
      } else {
        if (!entryMap.containsKey(name)) { // copy the old stuff
          // do our own compression
          ZipEntry e2 = new ZipEntry(name);
          e2.setMethod(e.getMethod());
          e2.setTime(e.getTime());
          e2.setComment(e.getComment());
          e2.setExtra(e.getExtra());
          if (e.getMethod() == ZipEntry.STORED) {
            e2.setSize(e.getSize());
            e2.setCrc(e.getCrc());
          }
          zos.putNextEntry(e2);
          copy(zis, zos);
        } else { // replace with the new files
          File f = entryMap.get(name);
          addFile(zos, f);
          entryMap.remove(name);
          entries.remove(f);
        }
      }
    }

    // add the remaining new files
    for (File f : entries) {
      addFile(zos, f);
    }
    if (!foundManifest) {
      if (newManifest != null) {
        Manifest m = new Manifest(newManifest);
        updateOk = !isAmbiguousMainClass(m);
        if (updateOk) {
          if (!updateManifest(m, zos)) {
            updateOk = false;
          }
        }
      } else if (ename != null || pname != null) {
        if (!updateManifest(new Manifest(), zos)) {
          updateOk = false;
        }
      }
    }
    zis.close();
    zos.close();
    return updateOk;
  }