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add node_modules
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life
261
node_modules/adm-zip/headers/entryHeader.js
generated
vendored
Normal file
261
node_modules/adm-zip/headers/entryHeader.js
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var Utils = require("../util"),
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Constants = Utils.Constants;
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/* The central directory file header */
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module.exports = function () {
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var _verMade = 0x0A,
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_version = 0x0A,
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_flags = 0,
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_method = 0,
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_time = 0,
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_crc = 0,
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_compressedSize = 0,
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_size = 0,
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_fnameLen = 0,
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_extraLen = 0,
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_comLen = 0,
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_diskStart = 0,
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_inattr = 0,
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_attr = 0,
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_offset = 0;
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var _dataHeader = {};
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function setTime(val) {
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var val = new Date(val);
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_time = (val.getFullYear() - 1980 & 0x7f) << 25 // b09-16 years from 1980
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| (val.getMonth() + 1) << 21 // b05-08 month
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| val.getDay() << 16 // b00-04 hour
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// 2 bytes time
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| val.getHours() << 11 // b11-15 hour
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| val.getMinutes() << 5 // b05-10 minute
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| val.getSeconds() >> 1; // b00-04 seconds divided by 2
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}
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setTime(+new Date());
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return {
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get made () { return _verMade; },
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set made (val) { _verMade = val; },
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get version () { return _version; },
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set version (val) { _version = val },
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get flags () { return _flags },
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set flags (val) { _flags = val; },
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get method () { return _method; },
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set method (val) { _method = val; },
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get time () { return new Date(
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((_time >> 25) & 0x7f) + 1980,
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((_time >> 21) & 0x0f) - 1,
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(_time >> 16) & 0x1f,
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(_time >> 11) & 0x1f,
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(_time >> 5) & 0x3f,
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(_time & 0x1f) << 1
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);
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},
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set time (val) {
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setTime(val);
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},
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get crc () { return _crc; },
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set crc (val) { _crc = val; },
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get compressedSize () { return _compressedSize; },
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set compressedSize (val) { _compressedSize = val; },
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get size () { return _size; },
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set size (val) { _size = val; },
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get fileNameLength () { return _fnameLen; },
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set fileNameLength (val) { _fnameLen = val; },
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get extraLength () { return _extraLen },
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set extraLength (val) { _extraLen = val; },
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get commentLength () { return _comLen },
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set commentLength (val) { _comLen = val },
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get diskNumStart () { return _diskStart },
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set diskNumStart (val) { _diskStart = val },
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get inAttr () { return _inattr },
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set inAttr (val) { _inattr = val },
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get attr () { return _attr },
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set attr (val) { _attr = val },
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get offset () { return _offset },
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set offset (val) { _offset = val },
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get encripted () { return (_flags & 1) == 1 },
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get entryHeaderSize () {
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return Constants.CENHDR + _fnameLen + _extraLen + _comLen;
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},
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get realDataOffset () {
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return _offset + Constants.LOCHDR + _dataHeader.fnameLen + _dataHeader.extraLen;
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},
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get dataHeader () {
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return _dataHeader;
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},
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loadDataHeaderFromBinary : function(/*Buffer*/input) {
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var data = input.slice(_offset, _offset + Constants.LOCHDR);
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// 30 bytes and should start with "PK\003\004"
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if (data.readUInt32LE(0) != Constants.LOCSIG) {
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throw Utils.Errors.INVALID_LOC;
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}
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_dataHeader = {
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// version needed to extract
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version : data.readUInt16LE(Constants.LOCVER),
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// general purpose bit flag
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flags : data.readUInt16LE(Constants.LOCFLG),
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// compression method
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method : data.readUInt16LE(Constants.LOCHOW),
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// modification time (2 bytes time, 2 bytes date)
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time : data.readUInt32LE(Constants.LOCTIM),
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// uncompressed file crc-32 value
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crc : data.readUInt32LE(Constants.LOCCRC),
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// compressed size
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compressedSize : data.readUInt32LE(Constants.LOCSIZ),
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// uncompressed size
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size : data.readUInt32LE(Constants.LOCLEN),
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// filename length
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fnameLen : data.readUInt16LE(Constants.LOCNAM),
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// extra field length
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extraLen : data.readUInt16LE(Constants.LOCEXT)
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}
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},
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loadFromBinary : function(/*Buffer*/data) {
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// data should be 46 bytes and start with "PK 01 02"
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if (data.length != Constants.CENHDR || data.readUInt32LE(0) != Constants.CENSIG) {
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throw Utils.Errors.INVALID_CEN;
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}
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// version made by
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_verMade = data.readUInt16LE(Constants.CENVEM);
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// version needed to extract
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_version = data.readUInt16LE(Constants.CENVER);
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// encrypt, decrypt flags
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_flags = data.readUInt16LE(Constants.CENFLG);
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// compression method
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_method = data.readUInt16LE(Constants.CENHOW);
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// modification time (2 bytes time, 2 bytes date)
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_time = data.readUInt32LE(Constants.CENTIM);
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// uncompressed file crc-32 value
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_crc = data.readUInt32LE(Constants.CENCRC);
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// compressed size
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_compressedSize = data.readUInt32LE(Constants.CENSIZ);
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// uncompressed size
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_size = data.readUInt32LE(Constants.CENLEN);
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// filename length
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_fnameLen = data.readUInt16LE(Constants.CENNAM);
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// extra field length
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_extraLen = data.readUInt16LE(Constants.CENEXT);
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// file comment length
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_comLen = data.readUInt16LE(Constants.CENCOM);
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// volume number start
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_diskStart = data.readUInt16LE(Constants.CENDSK);
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// internal file attributes
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_inattr = data.readUInt16LE(Constants.CENATT);
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// external file attributes
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_attr = data.readUInt32LE(Constants.CENATX);
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// LOC header offset
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_offset = data.readUInt32LE(Constants.CENOFF);
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},
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dataHeaderToBinary : function() {
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// LOC header size (30 bytes)
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var data = new Buffer(Constants.LOCHDR);
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// "PK\003\004"
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data.writeUInt32LE(Constants.LOCSIG, 0);
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// version needed to extract
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data.writeUInt16LE(_version, Constants.LOCVER);
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// general purpose bit flag
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data.writeUInt16LE(_flags, Constants.LOCFLG);
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// compression method
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data.writeUInt16LE(_method, Constants.LOCHOW);
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// modification time (2 bytes time, 2 bytes date)
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data.writeUInt32LE(_time, Constants.LOCTIM);
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// uncompressed file crc-32 value
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data.writeUInt32LE(_crc, Constants.LOCCRC);
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// compressed size
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data.writeUInt32LE(_compressedSize, Constants.LOCSIZ);
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// uncompressed size
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data.writeUInt32LE(_size, Constants.LOCLEN);
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// filename length
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data.writeUInt16LE(_fnameLen, Constants.LOCNAM);
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// extra field length
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data.writeUInt16LE(_extraLen, Constants.LOCEXT);
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return data;
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},
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entryHeaderToBinary : function() {
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// CEN header size (46 bytes)
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var data = new Buffer(Constants.CENHDR + _fnameLen + _extraLen + _comLen);
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// "PK\001\002"
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data.writeUInt32LE(Constants.CENSIG, 0);
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// version made by
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data.writeUInt16LE(_verMade, Constants.CENVEM);
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// version needed to extract
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data.writeUInt16LE(_version, Constants.CENVER);
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// encrypt, decrypt flags
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data.writeUInt16LE(_flags, Constants.CENFLG);
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// compression method
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data.writeUInt16LE(_method, Constants.CENHOW);
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// modification time (2 bytes time, 2 bytes date)
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data.writeUInt32LE(_time, Constants.CENTIM);
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// uncompressed file crc-32 value
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data.writeInt32LE(_crc, Constants.CENCRC, true);
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// compressed size
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data.writeUInt32LE(_compressedSize, Constants.CENSIZ);
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// uncompressed size
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data.writeUInt32LE(_size, Constants.CENLEN);
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// filename length
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data.writeUInt16LE(_fnameLen, Constants.CENNAM);
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// extra field length
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data.writeUInt16LE(_extraLen, Constants.CENEXT);
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// file comment length
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data.writeUInt16LE(_comLen, Constants.CENCOM);
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// volume number start
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data.writeUInt16LE(_diskStart, Constants.CENDSK);
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// internal file attributes
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data.writeUInt16LE(_inattr, Constants.CENATT);
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// external file attributes
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data.writeUInt32LE(_attr, Constants.CENATX);
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// LOC header offset
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data.writeUInt32LE(_offset, Constants.CENOFF);
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// fill all with
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data.fill(0x00, Constants.CENHDR);
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return data;
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},
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toString : function() {
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return '{\n' +
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'\t"made" : ' + _verMade + ",\n" +
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'\t"version" : ' + _version + ",\n" +
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'\t"flags" : ' + _flags + ",\n" +
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'\t"method" : ' + Utils.methodToString(_method) + ",\n" +
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'\t"time" : ' + _time + ",\n" +
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'\t"crc" : 0x' + _crc.toString(16).toUpperCase() + ",\n" +
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'\t"compressedSize" : ' + _compressedSize + " bytes,\n" +
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'\t"size" : ' + _size + " bytes,\n" +
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'\t"fileNameLength" : ' + _fnameLen + ",\n" +
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'\t"extraLength" : ' + _extraLen + " bytes,\n" +
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'\t"commentLength" : ' + _comLen + " bytes,\n" +
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'\t"diskNumStart" : ' + _diskStart + ",\n" +
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'\t"inAttr" : ' + _inattr + ",\n" +
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'\t"attr" : ' + _attr + ",\n" +
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'\t"offset" : ' + _offset + ",\n" +
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'\t"entryHeaderSize" : ' + (Constants.CENHDR + _fnameLen + _extraLen + _comLen) + " bytes\n" +
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'}';
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}
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}
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};
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2
node_modules/adm-zip/headers/index.js
generated
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2
node_modules/adm-zip/headers/index.js
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exports.EntryHeader = require("./entryHeader");
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exports.MainHeader = require("./mainHeader");
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80
node_modules/adm-zip/headers/mainHeader.js
generated
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80
node_modules/adm-zip/headers/mainHeader.js
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var Utils = require("../util"),
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Constants = Utils.Constants;
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/* The entries in the end of central directory */
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module.exports = function () {
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var _volumeEntries = 0,
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_totalEntries = 0,
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_size = 0,
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_offset = 0,
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_commentLength = 0;
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return {
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get diskEntries () { return _volumeEntries },
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set diskEntries (/*Number*/val) { _volumeEntries = _totalEntries = val; },
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get totalEntries () { return _totalEntries },
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set totalEntries (/*Number*/val) { _totalEntries = _volumeEntries = val; },
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get size () { return _size },
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set size (/*Number*/val) { _size = val; },
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get offset () { return _offset },
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set offset (/*Number*/val) { _offset = val; },
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get commentLength () { return _commentLength },
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set commentLength (/*Number*/val) { _commentLength = val; },
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get mainHeaderSize () {
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return Constants.ENDHDR + _commentLength;
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},
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loadFromBinary : function(/*Buffer*/data) {
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// data should be 22 bytes and start with "PK 05 06"
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if (data.length != Constants.ENDHDR || data.readUInt32LE(0) != Constants.ENDSIG)
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throw Utils.Errors.INVALID_END;
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// number of entries on this volume
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_volumeEntries = data.readUInt16LE(Constants.ENDSUB);
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// total number of entries
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_totalEntries = data.readUInt16LE(Constants.ENDTOT);
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// central directory size in bytes
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_size = data.readUInt32LE(Constants.ENDSIZ);
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// offset of first CEN header
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_offset = data.readUInt32LE(Constants.ENDOFF);
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// zip file comment length
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_commentLength = data.readUInt16LE(Constants.ENDCOM);
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},
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toBinary : function() {
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var b = new Buffer(Constants.ENDHDR + _commentLength);
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// "PK 05 06" signature
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b.writeUInt32LE(Constants.ENDSIG, 0);
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b.writeUInt32LE(0, 4);
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// number of entries on this volume
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b.writeUInt16LE(_volumeEntries, Constants.ENDSUB);
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// total number of entries
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b.writeUInt16LE(_totalEntries, Constants.ENDTOT);
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// central directory size in bytes
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b.writeUInt32LE(_size, Constants.ENDSIZ);
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// offset of first CEN header
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b.writeUInt32LE(_offset, Constants.ENDOFF);
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// zip file comment length
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b.writeUInt16LE(_commentLength, Constants.ENDCOM);
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// fill comment memory with spaces so no garbage is left there
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b.fill(" ", Constants.ENDHDR);
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return b;
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},
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toString : function() {
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return '{\n' +
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'\t"diskEntries" : ' + _volumeEntries + ",\n" +
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'\t"totalEntries" : ' + _totalEntries + ",\n" +
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'\t"size" : ' + _size + " bytes,\n" +
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'\t"offset" : 0x' + _offset.toString(16).toUpperCase() + ",\n" +
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'\t"commentLength" : 0x' + _commentLength + "\n" +
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'}';
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}
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}
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};
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Reference in New Issue
Block a user