Java Code Examples for java.util.zip.ZipEntry#getCompressedSize()

The following examples show how to use java.util.zip.ZipEntry#getCompressedSize() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ZipOutputStreamTest.java    From j2objc with Apache License 2.0 6 votes vote down vote up 
/**
 * java.util.zip.ZipOutputStream#setMethod(int)
 */
public void test_setMethodI() throws IOException {
    ZipEntry ze = new ZipEntry("test");
    zos.setMethod(ZipOutputStream.STORED);
    CRC32 tempCrc = new CRC32();
    tempCrc.update(data.getBytes());
    ze.setCrc(tempCrc.getValue());
    ze.setSize(new String(data).length());
    zos.putNextEntry(ze);
    zos.write(data.getBytes());
    zos.closeEntry();
    long csize = ze.getCompressedSize();
    zos.setMethod(ZipOutputStream.DEFLATED);
    zos.putNextEntry(ze = new ZipEntry("test2"));
    zos.write(data.getBytes());
    zos.closeEntry();
    assertTrue("setLevel failed", csize >= ze.getCompressedSize());
}
Example 2
Source File: Utils.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 5 votes vote down vote up 
static String zeString(ZipEntry ze) {
    int store = (ze.getCompressedSize() > 0) ?
        (int)( (1.0 - ((double)ze.getCompressedSize()/(double)ze.getSize()))*100 )
        : 0 ;
    // Follow unzip -lv output
    return ze.getSize() + "\t" + ze.getMethod()
        + "\t" + ze.getCompressedSize() + "\t"
        + store + "%\t"
        + new Date(ze.getTime()) + "\t"
        + Long.toHexString(ze.getCrc()) + "\t"
        + ze.getName() ;
}
Example 3
Source File: TMSLayer.java    From android_maplib with GNU Lesser General Public License v3.0 5 votes vote down vote up 
protected void fillFromZipInt(Uri uri, IProgressor progressor) throws IOException, NGException, RuntimeException {
    InputStream inputStream;
    String url = uri.toString();
    if (NetworkUtil.isValidUri(url))
        inputStream = new URL(url).openStream();
    else
        inputStream = mContext.getContentResolver().openInputStream(uri);

    if (inputStream == null)
        throw new NGException(mContext.getString(R.string.error_download_data));

    int streamSize = inputStream.available();
    if (null != progressor)
        progressor.setMax(streamSize);

    int increment = 0;
    byte[] buffer = new byte[Constants.IO_BUFFER_SIZE];

    ZipInputStream zis = new ZipInputStream(inputStream);
    ZipEntry ze;
    while ((ze = zis.getNextEntry()) != null) {
        FileUtil.unzipEntry(zis, ze, buffer, mPath);
        increment += ze.getCompressedSize();
        zis.closeEntry();
        if (null != progressor) {
            if(progressor.isCanceled())
                return;
            progressor.setValue(increment);
            progressor.setMessage(getContext().getString(R.string.processed) + " " + increment + " " + getContext().getString(R.string.of) + " " + streamSize);
        }
    }
}
Example 4
Source File: Utils.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up 
static String zeString(ZipEntry ze) {
    int store = (ze.getCompressedSize() > 0) ?
        (int)( (1.0 - ((double)ze.getCompressedSize()/(double)ze.getSize()))*100 )
        : 0 ;
    // Follow unzip -lv output
    return ze.getSize() + "\t" + ze.getMethod()
        + "\t" + ze.getCompressedSize() + "\t"
        + store + "%\t"
        + new Date(ze.getTime()) + "\t"
        + Long.toHexString(ze.getCrc()) + "\t"
        + ze.getName() ;
}
Example 5
Source File: Utils.java    From jdk8u_jdk with GNU General Public License v2.0 5 votes vote down vote up 
static String zeString(ZipEntry ze) {
    int store = (ze.getCompressedSize() > 0) ?
        (int)( (1.0 - ((double)ze.getCompressedSize()/(double)ze.getSize()))*100 )
        : 0 ;
    // Follow unzip -lv output
    return ze.getSize() + "\t" + ze.getMethod()
        + "\t" + ze.getCompressedSize() + "\t"
        + store + "%\t"
        + new Date(ze.getTime()) + "\t"
        + Long.toHexString(ze.getCrc()) + "\t"
        + ze.getName() ;
}
Example 6
Source File: Utils.java    From openjdk-8 with GNU General Public License v2.0 5 votes vote down vote up 
static String zeString(ZipEntry ze) {
    int store = (ze.getCompressedSize() > 0) ?
        (int)( (1.0 - ((double)ze.getCompressedSize()/(double)ze.getSize()))*100 )
        : 0 ;
    // Follow unzip -lv output
    return ze.getSize() + "\t" + ze.getMethod()
        + "\t" + ze.getCompressedSize() + "\t"
        + store + "%\t"
        + new Date(ze.getTime()) + "\t"
        + Long.toHexString(ze.getCrc()) + "\t"
        + ze.getName() ;
}
Example 7
Source File: ZipSecurity.java    From jadx with Apache License 2.0 5 votes vote down vote up 
public static boolean isZipBomb(ZipEntry entry) {
	long compressedSize = entry.getCompressedSize();
	long uncompressedSize = entry.getSize();
	if (compressedSize < 0 || uncompressedSize < 0) {
		LOG.error("Zip bomb attack detected, invalid sizes: compressed {}, uncompressed {}, name {}",
				compressedSize, uncompressedSize, entry.getName());
		return true;
	}
	if (compressedSize * MAX_SIZE_DIFF < uncompressedSize) {
		LOG.error("Zip bomb attack detected, invalid sizes: compressed {}, uncompressed {}, name {}",
				compressedSize, uncompressedSize, entry.getName());
		return true;
	}
	return false;
}
Example 8
Source File: Utils.java    From openjdk-8-source with GNU General Public License v2.0 5 votes vote down vote up 
static String zeString(ZipEntry ze) {
    int store = (ze.getCompressedSize() > 0) ?
        (int)( (1.0 - ((double)ze.getCompressedSize()/(double)ze.getSize()))*100 )
        : 0 ;
    // Follow unzip -lv output
    return ze.getSize() + "\t" + ze.getMethod()
        + "\t" + ze.getCompressedSize() + "\t"
        + store + "%\t"
        + new Date(ze.getTime()) + "\t"
        + Long.toHexString(ze.getCrc()) + "\t"
        + ze.getName() ;
}
Example 9
Source File: Utils.java    From hottub with GNU General Public License v2.0 5 votes vote down vote up 
static String zeString(ZipEntry ze) {
    int store = (ze.getCompressedSize() > 0) ?
        (int)( (1.0 - ((double)ze.getCompressedSize()/(double)ze.getSize()))*100 )
        : 0 ;
    // Follow unzip -lv output
    return ze.getSize() + "\t" + ze.getMethod()
        + "\t" + ze.getCompressedSize() + "\t"
        + store + "%\t"
        + new Date(ze.getTime()) + "\t"
        + Long.toHexString(ze.getCrc()) + "\t"
        + ze.getName() ;
}
Example 10
Source File: Utils.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up 
static String zeString(ZipEntry ze) {
    int store = (ze.getCompressedSize() > 0) ?
        (int)( (1.0 - ((double)ze.getCompressedSize()/(double)ze.getSize()))*100 )
        : 0 ;
    // Follow unzip -lv output
    return ze.getSize() + "\t" + ze.getMethod()
        + "\t" + ze.getCompressedSize() + "\t"
        + store + "%\t"
        + new Date(ze.getTime()) + "\t"
        + Long.toHexString(ze.getCrc()) + "\t"
        + ze.getName() ;
}
Example 11
Source File: Utils.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
static String zeString(ZipEntry ze) {
    int store = (ze.getCompressedSize() > 0) ?
        (int)( (1.0 - ((double)ze.getCompressedSize()/(double)ze.getSize()))*100 )
        : 0 ;
    // Follow unzip -lv output
    return ze.getSize() + "\t" + ze.getMethod()
        + "\t" + ze.getCompressedSize() + "\t"
        + store + "%\t"
        + new Date(ze.getTime()) + "\t"
        + Long.toHexString(ze.getCrc()) + "\t"
        + ze.getName() ;
}
Example 12
Source File: ZipSecurity.java    From Box with Apache License 2.0 5 votes vote down vote up 
public static boolean isZipBomb(ZipEntry entry) {
	long compressedSize = entry.getCompressedSize();
	long uncompressedSize = entry.getSize();
	if (compressedSize < 0 || uncompressedSize < 0) {
		LOG.error("Zip bomb attack detected, invalid sizes: compressed {}, uncompressed {}, name {}",
				compressedSize, uncompressedSize, entry.getName());
		return true;
	}
	if (compressedSize * MAX_SIZE_DIFF < uncompressedSize) {
		LOG.error("Zip bomb attack detected, invalid sizes: compressed {}, uncompressed {}, name {}",
				compressedSize, uncompressedSize, entry.getName());
		return true;
	}
	return false;
}
Example 13
Source File: Utils.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
static String zeString(ZipEntry ze) {
    int store = (ze.getCompressedSize() > 0) ?
        (int)( (1.0 - ((double)ze.getCompressedSize()/(double)ze.getSize()))*100 )
        : 0 ;
    // Follow unzip -lv output
    return ze.getSize() + "\t" + ze.getMethod()
        + "\t" + ze.getCompressedSize() + "\t"
        + store + "%\t"
        + new Date(ze.getTime()) + "\t"
        + Long.toHexString(ze.getCrc()) + "\t"
        + ze.getName() ;
}
Example 14
Source File: ApkBreakdownGeneratorTest.java    From bundletool with Apache License 2.0 5 votes vote down vote up 
private static long compress(byte[] data) throws IOException {
  ZipEntry zipEntry = new ZipEntry("entry");
  try (ZipOutputStream zos = new ZipOutputStream(ByteStreams.nullOutputStream())) {
    zipEntry.setMethod(ZipEntry.DEFLATED);
    zos.putNextEntry(zipEntry);
    zos.write(data);
    zos.closeEntry();
  }
  return zipEntry.getCompressedSize();
}
Example 15
Source File: Utils.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up 
static String zeString(ZipEntry ze) {
    int store = (ze.getCompressedSize() > 0) ?
        (int)( (1.0 - ((double)ze.getCompressedSize()/(double)ze.getSize()))*100 )
        : 0 ;
    // Follow unzip -lv output
    return ze.getSize() + "\t" + ze.getMethod()
        + "\t" + ze.getCompressedSize() + "\t"
        + store + "%\t"
        + new Date(ze.getTime()) + "\t"
        + Long.toHexString(ze.getCrc()) + "\t"
        + ze.getName() ;
}
Example 16
Source File: DexConversionEnqueuer.java    From bazel with Apache License 2.0 5 votes vote down vote up 
@Override
public Void call() throws InterruptedException, IOException {
  try {
    Enumeration<? extends ZipEntry> entries = in.entries();
    while (entries.hasMoreElements()) {
      ZipEntry entry = entries.nextElement();
      // Since these entries come from an existing zip file, they should always know their size
      // (meaning, never return -1). We also can't handle files that don't fit into a byte array.
      checkArgument(entry.getSize() >= 0, "Cannot process entry with unknown size: %s", entry);
      checkArgument(entry.getSize() <= Integer.MAX_VALUE, "Entry too large: %s", entry);
      byte[] content;
      if (entry.getSize() == 0L) {
        content = EMPTY; // this in particular covers directory entries
      } else {
        try (InputStream entryStream = in.getInputStream(entry)) {
          // Read all the content at once, which avoids temporary arrays and extra array copies
          content = new byte[(int) entry.getSize()];
          ByteStreams.readFully(entryStream, content); // throws if file is smaller than expected
          checkState(entryStream.read() == -1,
              "Too many bytes in jar entry %s, expected %s", entry, entry.getSize());
        }
      }
      if (!entry.isDirectory() && entry.getName().endsWith(".class")) {
        files.put(toDex(entry, content));
      } else {
        // Copy other files and directory entries
        if (entry.getCompressedSize() != 0) {
          entry.setCompressedSize(-1L); // We may compress differently from source Zip
        }
        files.put(immediateFuture(new ZipEntryContent(entry, content)));
      }
    }
  } finally {
    // Use try-finally to make absolutely sure we do this, otherwise the reader might deadlock
    files.put(immediateFuture((ZipEntryContent) null)); // "end of stream" marker
  }
  return null;
}
Example 17
Source File: Utils.java    From dragonwell8_jdk with GNU General Public License v2.0 5 votes vote down vote up 
static String zeString(ZipEntry ze) {
    int store = (ze.getCompressedSize() > 0) ?
        (int)( (1.0 - ((double)ze.getCompressedSize()/(double)ze.getSize()))*100 )
        : 0 ;
    // Follow unzip -lv output
    return ze.getSize() + "\t" + ze.getMethod()
        + "\t" + ze.getCompressedSize() + "\t"
        + store + "%\t"
        + new Date(ze.getTime()) + "\t"
        + Long.toHexString(ze.getCrc()) + "\t"
        + ze.getName() ;
}
Example 18
Source File: ZippedEntry.java    From rxjava-extras with Apache License 2.0 5 votes vote down vote up 
public ZippedEntry(ZipEntry e, InputStream is) {
    this.name = e.getName();
    this.time = e.getTime();
    // this.mtime = e.getLastModifiedTime();
    // this.atime = e.getLastAccessTime();
    // this.ctime = e.getCreationTime();
    this.crc = e.getCrc();
    this.size = e.getSize();
    this.csize = e.getCompressedSize();
    this.method = e.getMethod();
    this.extra = e.getExtra();
    this.comment = e.getComment();
    this.is = is;
}
Example 19
Source File: ZipFileEntryInputStream.java    From fingen with Apache License 2.0 4 votes vote down vote up 
/**
 * position input stream to start of ZipEntry this instance was created for
 *
 * @throws IOException
 */
public void nextEntry( ZipEntry ze ) throws IOException {
	LOG.fine("nextEntry().currentPos=" + currentPos);
	
	byte[] intBuffer = new byte[4];
	int bytesRead = fis.read(intBuffer);
	LOG.fine("bytes read="+bytesRead);
	if( bytesRead==-1 ) {
		// this occurred on android once, with FileInputStream as my superclass
		throw new IOException("no data available - available=" + fis.available());
	}
	
	int dataDescriptorLength = 0;
	if( Arrays.equals(intBuffer, new byte[] { 0x50, 0x4b, 0x07, 0x08 }) ) {
		// header does not belong to next file, but is start of the "data descriptor" of last file
		// skip this data descriptor containing crc32(4), compressedSize(4), uncompressedSize(4)
		dataDescriptorLength = 4 + 4 + 4;
		fis.skip( dataDescriptorLength );
		// read local file header signature
		fis.read(intBuffer);
	}
	
	if( !Arrays.equals(intBuffer, new byte[] { 0x50, 0x4b, 0x03, 0x04 }) ) {
		throw new IOException("wrong local file header signature - value=" + ByteArrayHelper.toString(intBuffer) );
	}

	// info only - if bit-3 is set, current entry is followed by data descriptor
	boolean hasDataDescriptor = (ze.getMethod() & 8) > 0;
	LOG.fine( "nextEntry().hasDataDescriptor=" + hasDataDescriptor );

	this.compressedSize = ze.getCompressedSize();
	
	fis.skip(14 + 4 + 4); // 14 + localFileHeaderSignature(4) + compressedSize(4) + size(4)

	byte[] shortBuffer = new byte[2];
	fis.read(shortBuffer);
	int fileNameLength = ByteArrayHelper.toInt(shortBuffer);

	fis.read(shortBuffer);
	int extraFieldLength = ByteArrayHelper.toInt(shortBuffer);

	startPos = 18 + 12 + fileNameLength + extraFieldLength + dataDescriptorLength;
	currentPos = startPos;
	endPos = startPos + this.compressedSize;

	fis.skip( fileNameLength + extraFieldLength );
}
Example 20
Source File: ZipRODirectory.java    From ratel with Apache License 2.0 4 votes vote down vote up 
@Override
public long getCompressedSize(String fileName)
        throws DirectoryException {
    ZipEntry entry = getZipFileEntry(fileName);
    return entry.getCompressedSize();
}