Example usage for org.apache.commons.compress.archivers.zip ZipArchiveEntry getRawName

Introduction

In this page you can find the example usage for org.apache.commons.compress.archivers.zip ZipArchiveEntry getRawName.

Prototype

public byte[] getRawName() 

Source Link

Document

Returns the raw bytes that made up the name before it has been converted using the configured or guessed encoding.

Usage

From source file:com.zimbra.cs.util.ZipUtil.java

public static String bestGuessAtEntryName(ZipArchiveEntry zae, Locale locale) {
    GeneralPurposeBit gbp = zae.getGeneralPurposeBit();
    if ((null != gbp) && gbp.usesUTF8ForNames()) {
        return (zae.getName());
    }//from  w w  w  .  j ava 2 s.c  om
    byte[] rawName = zae.getRawName();
    /* First of all, assume UTF-8.  java.util.zip assumes UTF-8 names, so this is a reasonable first
     * guess.  If the name isn't US-ASCII and it isn't UTF-8 there is a reasonable chance this
     * will fail because of the way UTF-8 works - and we can try other charsets.
     */
    String guess = convertBytesIfPossible(rawName, StandardCharsets.UTF_8);
    if (guess != null) {
        return guess;
    }
    guess = getNameFromUnicodeExtraPathIfPresent(zae);
    if (guess != null) {
        return guess;
    }
    List<String> charsetsForLocale = defaultCharsetForLocale.get(locale);
    if (null != charsetsForLocale) {
        for (String charsetForLocale : charsetsForLocale) {
            guess = convertBytesIfPossible(rawName, Charset.forName(charsetForLocale));
            if (guess != null) {
                return guess;
            }
        }
    }
    return zae.getName();
}

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From source file:com.zimbra.cs.util.ZipUtil.java

/**
 * Use InfoZIP Unicode Extra Fields (if present) to set the filename
 *//* ww w.  j a va2  s . c  o  m*/
private static String getNameFromUnicodeExtraPathIfPresent(ZipArchiveEntry zae) {
    UnicodePathExtraField unicodePathExtraField = (UnicodePathExtraField) zae
            .getExtraField(UnicodePathExtraField.UPATH_ID);
    if (null == unicodePathExtraField) {
        return null;
    }
    CRC32 crc32 = new CRC32();
    crc32.update(zae.getRawName());
    long origCRC32 = crc32.getValue();

    if (origCRC32 == unicodePathExtraField.getNameCRC32()) {
        String val = convertBytesIfPossible(unicodePathExtraField.getUnicodeName(), StandardCharsets.UTF_8);
        if (null != val) {
            ZimbraLog.misc.debug("ZipUtil name '%s' from unicodeExtraPath", val);
        }
        return val;
    }
    return null;
}

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From source file:org.abysm.onionzip.ZipFileExtractHelper.java

void setEncodingByDetection() throws IOException {
    UniversalDetector filenameCharsetDetector = new UniversalDetector(null);
    ZipFile zipFile = new ZipFile(zipFilename);
    try {/*w w  w  .ja va2s  .  c  o m*/
        for (Enumeration<ZipArchiveEntry> zipArchiveEntryEnumeration = zipFile
                .getEntries(); zipArchiveEntryEnumeration.hasMoreElements();) {
            ZipArchiveEntry entry = zipArchiveEntryEnumeration.nextElement();
            if (!entry.getGeneralPurposeBit().usesUTF8ForNames()) {
                byte[] filename = entry.getRawName();
                filenameCharsetDetector.handleData(filename, 0, filename.length);
            }
        }
    } finally {
        ZipFile.closeQuietly(zipFile);
    }
    filenameCharsetDetector.dataEnd();
    this.encoding = filenameCharsetDetector.getDetectedCharset();
}

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