/** * The actual data to put into local file data - without Header-ID * or length specifier. * @return get the data */ public byte[] getLocalFileDataData() { // CRC will be added later byte[] data = new byte[getLocalFileDataLength().getValue() - WORD]; java.lang.SystemJ.arraycopy(ZipShort.getBytes(getMode()), 0, data, 0, 2); byte[] linkArray = getLinkedFile().getBytes(); // Uses default charset - see class Javadoc // CheckStyle:MagicNumber OFF java.lang.SystemJ.arraycopy(ZipLong.getBytes(linkArray.Length), 0, data, 2, WORD); java.lang.SystemJ.arraycopy(ZipShort.getBytes(getUserId()), 0, data, 6, 2); java.lang.SystemJ.arraycopy(ZipShort.getBytes(getGroupId()), 0, data, 8, 2); java.lang.SystemJ.arraycopy(linkArray, 0, data, 10, linkArray.Length); // CheckStyle:MagicNumber ON crc.reset(); crc.update(data); long checksum = crc.getValue(); byte[] result = new byte[data.Length + WORD]; java.lang.SystemJ.arraycopy(ZipLong.getBytes(checksum), 0, result, 0, WORD); java.lang.SystemJ.arraycopy(data, 0, result, WORD, data.Length); return(result); }
/** * Encodes the set bits in a form suitable for ZIP archives. */ public byte[] encode() { return (ZipShort.getBytes((dataDescriptorFlag ? DATA_DESCRIPTOR_FLAG : 0) | (languageEncodingFlag ? UFT8_NAMES_FLAG : 0) | (encryptionFlag ? ENCRYPTION_FLAG : 0) | (strongEncryptionFlag ? STRONG_ENCRYPTION_FLAG : 0) )); }
/** * Writes the "End of central dir record". * @throws IOException on error */ protected void writeCentralDirectoryEnd() //throws IOException { writeOut(EOCD_SIG); // disk numbers writeOut(ZERO); writeOut(ZERO); // number of entries byte[] num = ZipShort.getBytes(entries.size()); writeOut(num); writeOut(num); // length and location of CD writeOut(ZipLong.getBytes(cdLength)); writeOut(ZipLong.getBytes(cdOffset)); // ZIP file comment java.nio.ByteBuffer data = this.zipEncoding.encode(comment); writeOut(ZipShort.getBytes(data.limit())); writeOut((byte[])data.array(), data.arrayOffset(), data.limit()); }
private void writeVersionNeededToExtractAndGeneralPurposeBits(int zipMethod, bool utfFallback) //throws IOException { // CheckStyle:MagicNumber OFF int versionNeededToExtract = 10; GeneralPurposeBit b = new GeneralPurposeBit(); b.useUTF8ForNames(useUTF8Flag || utfFallback); if (zipMethod == DEFLATED && raf == null) { // requires version 2 as we are going to store length info // in the data descriptor versionNeededToExtract = 20; b.useDataDescriptor(true); } // CheckStyle:MagicNumber ON // version needed to extract writeOut(ZipShort.getBytes(versionNeededToExtract)); // general purpose bit flag writeOut(b.encode()); }
/** * Writes the central file header entry. * @param ze the entry to write * @throws IOException on error */ protected void writeCentralFileHeader(ZipArchiveEntry ze) //throws IOException { writeOut(CFH_SIG); written += WORD; // version made by // CheckStyle:MagicNumber OFF writeOut(ZipShort.getBytes((ze.getPlatform() << 8) | 20)); written += SHORT; int zipMethod = ze.getMethod(); bool encodable = zipEncoding.canEncode(ze.getName()); writeVersionNeededToExtractAndGeneralPurposeBits(zipMethod, !encodable && fallbackToUTF8); written += WORD; // compression method writeOut(ZipShort.getBytes(zipMethod)); written += SHORT; // last mod. time and date writeOut(ZipUtil.toDosTime(ze.getTime())); written += WORD; // CRC // compressed length // uncompressed length writeOut(ZipLong.getBytes(ze.getCrc())); writeOut(ZipLong.getBytes(ze.getCompressedSize())); writeOut(ZipLong.getBytes(ze.getSize())); // CheckStyle:MagicNumber OFF written += 12; // CheckStyle:MagicNumber ON // file name length ZipEncoding entryEncoding; if (!encodable && fallbackToUTF8) { entryEncoding = ZipEncodingHelper.UTF8_ZIP_ENCODING; } else { entryEncoding = zipEncoding; } java.nio.ByteBuffer name = entryEncoding.encode(ze.getName()); writeOut(ZipShort.getBytes(name.limit())); written += SHORT; // extra field length byte[] extra = ze.getCentralDirectoryExtra(); writeOut(ZipShort.getBytes(extra.Length)); written += SHORT; // file comment length String comm = ze.getComment(); if (comm == null) { comm = ""; } java.nio.ByteBuffer commentB = entryEncoding.encode(comm); writeOut(ZipShort.getBytes(commentB.limit())); written += SHORT; // disk number start writeOut(ZERO); written += SHORT; // internal file attributes writeOut(ZipShort.getBytes(ze.getInternalAttributes())); written += SHORT; // external file attributes writeOut(ZipLong.getBytes(ze.getExternalAttributes())); written += WORD; // relative offset of LFH writeOut((byte[])offsets.get(ze)); written += WORD; // file name writeOut((byte[])name.array(), name.arrayOffset(), name.limit()); written += name.limit(); // extra field writeOut(extra); written += extra.Length; // file comment writeOut((byte[])commentB.array(), commentB.arrayOffset(), commentB.limit()); written += commentB.limit(); }
/** * Writes the local file header entry * @param ze the entry to write * @throws IOException on error */ protected void writeLocalFileHeader(ZipArchiveEntry ze) //throws IOException { bool encodable = zipEncoding.canEncode(ze.getName()); ZipEncoding entryEncoding; if (!encodable && fallbackToUTF8) { entryEncoding = ZipEncodingHelper.UTF8_ZIP_ENCODING; } else { entryEncoding = zipEncoding; } java.nio.ByteBuffer name = entryEncoding.encode(ze.getName()); if (createUnicodeExtraFields != UnicodeExtraFieldPolicy.NEVER) { if (createUnicodeExtraFields == UnicodeExtraFieldPolicy.ALWAYS || !encodable) { ze.addExtraField(new UnicodePathExtraField(ze.getName(), (byte[])name.array(), name.arrayOffset(), name.limit())); } String comm = ze.getComment(); if (comm != null && !"".equals(comm)) { bool commentEncodable = this.zipEncoding.canEncode(comm); if (createUnicodeExtraFields == UnicodeExtraFieldPolicy.ALWAYS || !commentEncodable) { java.nio.ByteBuffer commentB = entryEncoding.encode(comm); ze.addExtraField(new UnicodeCommentExtraField(comm, (byte[])commentB.array(), commentB.arrayOffset(), commentB.limit()) ); } } } offsets.put(ze, ZipLong.getBytes(written)); writeOut(LFH_SIG); written += WORD; //store method in local variable to prevent multiple method calls int zipMethod = ze.getMethod(); writeVersionNeededToExtractAndGeneralPurposeBits(zipMethod, !encodable && fallbackToUTF8); written += WORD; // compression method writeOut(ZipShort.getBytes(zipMethod)); written += SHORT; // last mod. time and date writeOut(ZipUtil.toDosTime(ze.getTime())); written += WORD; // CRC // compressed length // uncompressed length localDataStart = written; if (zipMethod == DEFLATED || raf != null) { writeOut(LZERO); writeOut(LZERO); writeOut(LZERO); } else { writeOut(ZipLong.getBytes(ze.getCrc())); writeOut(ZipLong.getBytes(ze.getSize())); writeOut(ZipLong.getBytes(ze.getSize())); } // CheckStyle:MagicNumber OFF written += 12; // CheckStyle:MagicNumber ON // file name length writeOut(ZipShort.getBytes(name.limit())); written += SHORT; // extra field length byte[] extra = ze.getLocalFileDataExtra(); writeOut(ZipShort.getBytes(extra.Length)); written += SHORT; // file name writeOut((byte[])name.array(), name.arrayOffset(), name.limit()); written += name.limit(); // extra field writeOut(extra); written += extra.Length; dataStart = written; }