--- /dev/null
+module.exports = {
+ /* The local file header */
+ LOCHDR : 30, // LOC header size
+ LOCSIG : 0x04034b50, // "PK\003\004"
+ LOCVER : 4, // version needed to extract
+ LOCFLG : 6, // general purpose bit flag
+ LOCHOW : 8, // compression method
+ LOCTIM : 10, // modification time (2 bytes time, 2 bytes date)
+ LOCCRC : 14, // uncompressed file crc-32 value
+ LOCSIZ : 18, // compressed size
+ LOCLEN : 22, // uncompressed size
+ LOCNAM : 26, // filename length
+ LOCEXT : 28, // extra field length
+
+ /* The Data descriptor */
+ EXTSIG : 0x08074b50, // "PK\007\008"
+ EXTHDR : 16, // EXT header size
+ EXTCRC : 4, // uncompressed file crc-32 value
+ EXTSIZ : 8, // compressed size
+ EXTLEN : 12, // uncompressed size
+
+ /* The central directory file header */
+ CENHDR : 46, // CEN header size
+ CENSIG : 0x02014b50, // "PK\001\002"
+ CENVEM : 4, // version made by
+ CENVER : 6, // version needed to extract
+ CENFLG : 8, // encrypt, decrypt flags
+ CENHOW : 10, // compression method
+ CENTIM : 12, // modification time (2 bytes time, 2 bytes date)
+ CENCRC : 16, // uncompressed file crc-32 value
+ CENSIZ : 20, // compressed size
+ CENLEN : 24, // uncompressed size
+ CENNAM : 28, // filename length
+ CENEXT : 30, // extra field length
+ CENCOM : 32, // file comment length
+ CENDSK : 34, // volume number start
+ CENATT : 36, // internal file attributes
+ CENATX : 38, // external file attributes (host system dependent)
+ CENOFF : 42, // LOC header offset
+
+ /* The entries in the end of central directory */
+ ENDHDR : 22, // END header size
+ ENDSIG : 0x06054b50, // "PK\005\006"
+ ENDSUB : 8, // number of entries on this disk
+ ENDTOT : 10, // total number of entries
+ ENDSIZ : 12, // central directory size in bytes
+ ENDOFF : 16, // offset of first CEN header
+ ENDCOM : 20, // zip file comment length
+
+ /* Compression methods */
+ STORED : 0, // no compression
+ SHRUNK : 1, // shrunk
+ REDUCED1 : 2, // reduced with compression factor 1
+ REDUCED2 : 3, // reduced with compression factor 2
+ REDUCED3 : 4, // reduced with compression factor 3
+ REDUCED4 : 5, // reduced with compression factor 4
+ IMPLODED : 6, // imploded
+ // 7 reserved
+ DEFLATED : 8, // deflated
+ ENHANCED_DEFLATED: 9, // enhanced deflated
+ PKWARE : 10,// PKWare DCL imploded
+ // 11 reserved
+ BZIP2 : 12, // compressed using BZIP2
+ // 13 reserved
+ LZMA : 14, // LZMA
+ // 15-17 reserved
+ IBM_TERSE : 18, // compressed using IBM TERSE
+ IBM_LZ77 : 19, //IBM LZ77 z
+
+ /* General purpose bit flag */
+ FLG_ENC : 0, // encripted file
+ FLG_COMP1 : 1, // compression option
+ FLG_COMP2 : 2, // compression option
+ FLG_DESC : 4, // data descriptor
+ FLG_ENH : 8, // enhanced deflation
+ FLG_STR : 16, // strong encryption
+ FLG_LNG : 1024, // language encoding
+ FLG_MSK : 4096, // mask header values
+
+ /* Load type */
+ FILE : 0,
+ BUFFER : 1,
+ NONE : 2
+};