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jszip.js
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/*!
JSZip - A Javascript class for generating and reading zip files
<http://stuartk.com/jszip>
(c) 2009-2014 Stuart Knightley <stuart [at] stuartk.com>
Dual licenced under the MIT license or GPLv3. See https://raw.github.com/Stuk/jszip/master/LICENSE.markdown.
JSZip uses the library pako released under the MIT license :
https://github.com/nodeca/pako/blob/master/LICENSE
*/
!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.JSZip=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
'use strict';
// private property
var _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
// public method for encoding
exports.encode = function(input) {
var output = "";
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
var i = 0, len = input.length, remainingBytes = len;
while (i < input.length) {
remainingBytes = len - i;
chr1 = input.charCodeAt(i++);
chr2 = i < len ? input.charCodeAt(i++) : 0;
chr3 = i < len ? input.charCodeAt(i++) : 0;
enc1 = chr1 >> 2;
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
enc3 = remainingBytes > 1 ? (((chr2 & 15) << 2) | (chr3 >> 6)) : 64;
enc4 = remainingBytes > 2 ? (chr3 & 63) : 64;
output = output + _keyStr.charAt(enc1) + _keyStr.charAt(enc2) + _keyStr.charAt(enc3) + _keyStr.charAt(enc4);
}
return output;
};
// public method for decoding
exports.decode = function(input) {
var output = "";
var chr1, chr2, chr3;
var enc1, enc2, enc3, enc4;
var i = 0;
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
while (i < input.length) {
enc1 = _keyStr.indexOf(input.charAt(i++));
enc2 = _keyStr.indexOf(input.charAt(i++));
enc3 = _keyStr.indexOf(input.charAt(i++));
enc4 = _keyStr.indexOf(input.charAt(i++));
chr1 = (enc1 << 2) | (enc2 >> 4);
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
chr3 = ((enc3 & 3) << 6) | enc4;
output = output + String.fromCharCode(chr1);
if (enc3 != 64) {
output = output + String.fromCharCode(chr2);
}
if (enc4 != 64) {
output = output + String.fromCharCode(chr3);
}
}
return output;
};
},{}],2:[function(_dereq_,module,exports){
'use strict';
var utils = _dereq_('./utils');
/**
* Represent a compressed object, with everything needed to decompress it.
* @constructor
* @param {number} compressedSize the size of the data compressed.
* @param {number} uncompressedSize the size of the data after decompression.
* @param {number} crc32 the crc32 of the decompressed file.
* @param {object} compression the type of compression, see lib/compressions.js.
* @param {String|ArrayBuffer|Uint8Array|Buffer} data the compressed data.
*/
function CompressedObject(compressedSize, uncompressedSize, crc32, compression, data) {
this.compressedSize = compressedSize;
this.uncompressedSize = uncompressedSize;
this.crc32 = crc32;
this.compression = compression;
this.compressedContent = data;
}
CompressedObject.prototype = {
/**
* Return the decompressed content in an unspecified format.
* The format will depend on the decompressor.
* @return {Object} the decompressed content.
*/
getContent: function() {
var compressedFileData = utils.transformTo(this.compression.uncompressInputType, this.compressedContent);
var uncompressedFileData = this.compression.uncompress(compressedFileData);
if (uncompressedFileData.length !== this.uncompressedSize) {
throw new Error("Bug : uncompressed data size mismatch");
}
return uncompressedFileData;
},
/**
* Get the decompressed content in an unspecified format.
* The format will depend on the decompressor.
* @param {Function} callback the callback to call when the content is ready.
* The callback is called with :
* - an error (if any)
* - the decompressed content.
*/
getContentAsync: function(callback) {
var compressedFileData = utils.transformTo(this.compression.uncompressInputType, this.compressedContent);
var self = this;
this.compression.uncompressAsync(compressedFileData, function (err, uncompressedFileData) {
if(!err) {
if (uncompressedFileData.length !== self.uncompressedSize) {
err = new Error("Bug : uncompressed data size mismatch");
}
}
callback(err, uncompressedFileData);
});
},
/**
* Change the compression type (DEFLATE -> STORE for example).
* @param {Object} compression the new compression.
*/
recompress: function (compression) {
if (this.compression.magic !== compression.magic) {
var content = this.getContent();
// need to decompress / recompress
this.compressedContent = compression.compress(utils.transformTo(compression.compressInputType, content));
this.compressedSize = this.compressedContent.length;
this.compression = compression;
}
},
/**
* Change the compression type (DEFLATE -> STORE for example).
* @param {Object} compression the new compression.
* @param {Function} callback the function to call with the result.
* The callback is called with :
* - an error (if any)
* - the current CompressedObject, with the right compression.
*/
recompressAsync: function (compression, callback) {
if (this.compression.magic !== compression.magic) {
// need to decompress / recompress
var self = this;
utils.asyncSequence(this, [
function(compressed, cb) {
compressed.getContentAsync(cb);
}, function (content, cb) {
compression.compressAsync(utils.transformTo(compression.compressInputType, content), cb);
}, function (compressedContent, cb) {
self.compressedContent = compressedContent;
self.compressedSize = self.compressedContent.length;
self.compression = compression;
cb(null, self);
}
], callback);
} else {
callback(null, this);
}
}
};
module.exports = CompressedObject;
// vim: set shiftwidth=4 softtabstop=4:
},{"./utils":19}],3:[function(_dereq_,module,exports){
'use strict';
var utils = _dereq_("./utils");
exports.STORE = {
magic: "\x00\x00",
compress: function(content) {
return content; // no compression
},
uncompress: function(content) {
// return content; // no compression
var result = content;
if (utils.getTypeOf(content) === "uint8array") {
// when reading an arraybuffer, the CompressedObject mechanism will
// keep it and subarray() a Uint8Array. If we request a file in the
// same format, we might get the same Uint8Array or its ArrayBuffer
// (the original zip file). This only happens with STORE since
// other compression methods will create a new ArrayBuffer.
result = new Uint8Array(content.length);
// with an empty Uint8Array, Opera fails with a "Offset larger than array size"
if (result.length !== 0) {
result.set(content, 0);
}
}
return result;
},
compressAsync : function (content, callback) {
callback(null, exports.STORE.compress(content));
},
uncompressAsync : function (content, callback) {
callback(null, exports.STORE.uncompress(content));
},
compressInputType: null,
uncompressInputType: null
};
exports.DEFLATE = _dereq_('./flate');
},{"./flate":7,"./utils":19}],4:[function(_dereq_,module,exports){
'use strict';
var utils = _dereq_('./utils');
var table = [
0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
];
/**
*
* Javascript crc32
* http://www.webtoolkit.info/
*
*/
module.exports = function crc32(input, crc) {
if (typeof input === "undefined" || !input.length) {
return 0;
}
var isArray = utils.getTypeOf(input) !== "string";
if (typeof(crc) == "undefined") {
crc = 0;
}
var x = 0;
var y = 0;
var b = 0;
crc = crc ^ (-1);
for (var i = 0, iTop = input.length; i < iTop; i++) {
b = isArray ? input[i] : input.charCodeAt(i);
y = (crc ^ b) & 0xFF;
x = table[y];
crc = (crc >>> 8) ^ x;
}
return crc ^ (-1);
};
// vim: set shiftwidth=4 softtabstop=4:
},{"./utils":19}],5:[function(_dereq_,module,exports){
'use strict';
exports.base64 = false;
exports.binary = false;
exports.dir = false;
exports.date = null;
exports.compression = null;
exports.comment = null;
},{}],6:[function(_dereq_,module,exports){
'use strict';
var utils = _dereq_('./utils');
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.string2binary = function(str) {
return utils.string2binary(str);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.string2Uint8Array = function(str) {
return utils.transformTo("uint8array", str);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.uint8Array2String = function(array) {
return utils.transformTo("string", array);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.string2Blob = function(str) {
var buffer = utils.transformTo("arraybuffer", str);
return utils.newBlob(buffer, "application/zip");
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.arrayBuffer2Blob = function(buffer) {
return utils.arrayBuffer2Blob(buffer);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.transformTo = function(outputType, input) {
return utils.transformTo(outputType, input);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.getTypeOf = function(input) {
return utils.getTypeOf(input);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.checkSupport = function(type) {
return utils.checkSupport(type);
};
/**
* @deprecated
* This value will be removed in a future version without replacement.
*/
exports.MAX_VALUE_16BITS = utils.MAX_VALUE_16BITS;
/**
* @deprecated
* This value will be removed in a future version without replacement.
*/
exports.MAX_VALUE_32BITS = utils.MAX_VALUE_32BITS;
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.pretty = function(str) {
return utils.pretty(str);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.findCompression = function(compressionMethod) {
return utils.findCompression(compressionMethod);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.isRegExp = function (object) {
return utils.isRegExp(object);
};
},{"./utils":19}],7:[function(_dereq_,module,exports){
'use strict';
var USE_TYPEDARRAY = (typeof Uint8Array !== 'undefined') && (typeof Uint16Array !== 'undefined') && (typeof Uint32Array !== 'undefined');
var pako = _dereq_("pako");
var utils = _dereq_("./utils");
var nodejsUtils = _dereq_('./nodejsUtils');
var ARRAY_TYPE = USE_TYPEDARRAY ? "uint8array" : "array";
exports.uncompressInputType = null; // the conversion is handled in each method.
exports.compressInputType = null; // the conversion is handled in each method.
exports.magic = "\x08\x00";
exports.compress = function(input) {
input = utils.transformTo(ARRAY_TYPE, input);
return pako.deflateRaw(input);
};
exports.uncompress = function(input) {
input = utils.transformTo(ARRAY_TYPE, input);
return pako.inflateRaw(input);
};
exports.compressAsync = function (input, callback) {
// if possible, use the nodejs zlib interface.
if (nodejsUtils.zlib) {
nodejsUtils.zlib.deflateRaw(
utils.transformTo("nodebuffer", input),
callback
);
return;
}
flateAsync("Deflate", input, callback);
};
/**
* Prepare the function needed to INFLATE or DEFLATE the part between
* `from` and `to` in the input.
* @param {Uint8Array|Array} input the compressed input.
* @param {String} type the type of the input.
* @param {Number} from the starting index for this execution.
* @param {Number} to the ending index for this execution.
* @return {Function} the function, ready to be called by utils.asyncSequence.
*/
function prepareFlateAsync(input, type, from, to) {
input = utils.transformTo(ARRAY_TYPE, input);
return function (inflate, cb) {
if (type === "uint8array") {
inflate.push(input.subarray(from, to), false);
} else {
inflate.push(input.slice(from, to), false);
}
utils.delay(cb, [inflate.err, inflate]);
};
}
/**
* Inflate or deflate an input by chunks.
* @param {String} action "Inflate" or "Deflate", the name of pako's objects.
* @param {Uint8Array|Array} input the input to inflate / deflate.
* @param {Function} callback the function to call when the result is ready.
* The callback is called with :
* - an error (if any)
* - the inflated / deflated result.
*/
function flateAsync(action, input, callback) {
var len = input.length, from = 0, to = 0, chunk = 1 << 20;
var type = utils.getTypeOf(input);
var flate = new pako[action]({raw:true});
var steps = [];
// for large content, we should split the work into smaller chunk
while (from < len) {
to = Math.min(from + chunk, len);
steps.push(prepareFlateAsync(input, type, from, to));
from += chunk;
}
utils.asyncSequence.call(utils, flate, steps, function (err, flate) {
if(err) {
callback(err, null);
return;
}
// dummy push, force end
flate.push([], true);
if(flate.err) {
callback(new Error(action + " : error " + flate.err + " : " + flate.msg), null);
} else {
callback(null, flate.result);
}
});
}
exports.uncompressAsync = function (input, callback) {
// if possible, use the nodejs zlib interface.
if (nodejsUtils.zlib) {
nodejsUtils.zlib.inflateRaw(
utils.transformTo("nodebuffer", input),
callback
);
return;
}
flateAsync("Inflate", input, callback);
};
},{"./nodejsUtils":25,"./utils":19,"pako":26}],8:[function(_dereq_,module,exports){
'use strict';
var utils = _dereq_('./utils');
var utf8 = _dereq_('./utf8');
var crc32 = _dereq_('./crc32');
var signature = _dereq_('./signature');
var base64 = _dereq_('./base64');
var compressions = _dereq_('./compressions');
var StringWriter = _dereq_('./writer/stringWriter');
var Uint8ArrayWriter = _dereq_('./writer/uint8ArrayWriter');
/**
* Transform an integer into a string in hexadecimal.
* @private
* @param {number} dec the number to convert.
* @param {number} bytes the number of bytes to generate.
* @returns {string} the result.
*/
var decToHex = function(dec, bytes) {
var hex = "",
i;
for (i = 0; i < bytes; i++) {
hex += String.fromCharCode(dec & 0xff);
dec = dec >>> 8;
}
return hex;
};
/**
* Generate the various parts used in the construction of the final zip file.
* @param {ZipObject} file the file content.
* @param {JSZip.CompressedObject} compressedObject the compressed object.
* @param {number} offset the current offset from the start of the zip file.
* @return {object} the zip parts.
*/
var generateZipParts = function(file, compressedObject, offset) {
var data = compressedObject.compressedContent,
utfEncodedFileName = utils.transformTo("string", utf8.utf8encode(file.name)),
comment = file.comment || "",
utfEncodedComment = utils.transformTo("string", utf8.utf8encode(comment)),
useUTF8ForFileName = utfEncodedFileName.length !== file.name.length,
useUTF8ForComment = utfEncodedComment.length !== comment.length,
o = file.options,
dosTime,
dosDate,
extraFields = "",
unicodePathExtraField = "",
unicodeCommentExtraField = "",
dir, date;
// handle the deprecated options.dir
if (file._initialMetadata.dir !== file.dir) {
dir = file.dir;
} else {
dir = o.dir;
}
// handle the deprecated options.date
if(file._initialMetadata.date !== file.date) {
date = file.date;
} else {
date = o.date;
}
// date
// @see http://www.delorie.com/djgpp/doc/rbinter/it/52/13.html
// @see http://www.delorie.com/djgpp/doc/rbinter/it/65/16.html
// @see http://www.delorie.com/djgpp/doc/rbinter/it/66/16.html
dosTime = date.getHours();
dosTime = dosTime << 6;
dosTime = dosTime | date.getMinutes();
dosTime = dosTime << 5;
dosTime = dosTime | date.getSeconds() / 2;
dosDate = date.getFullYear() - 1980;
dosDate = dosDate << 4;
dosDate = dosDate | (date.getMonth() + 1);
dosDate = dosDate << 5;
dosDate = dosDate | date.getDate();
if (useUTF8ForFileName) {
// set the unicode path extra field. unzip needs at least one extra
// field to correctly handle unicode path, so using the path is as good
// as any other information. This could improve the situation with
// other archive managers too.
// This field is usually used without the utf8 flag, with a non
// unicode path in the header (winrar, winzip). This helps (a bit)
// with the messy Windows' default compressed folders feature but
// breaks on p7zip which doesn't seek the unicode path extra field.
// So for now, UTF-8 everywhere !
unicodePathExtraField =
// Version
decToHex(1, 1) +
// NameCRC32
decToHex(crc32(utfEncodedFileName), 4) +
// UnicodeName
utfEncodedFileName;
extraFields +=
// Info-ZIP Unicode Path Extra Field
"\x75\x70" +
// size
decToHex(unicodePathExtraField.length, 2) +
// content
unicodePathExtraField;
}
if(useUTF8ForComment) {
unicodeCommentExtraField =
// Version
decToHex(1, 1) +
// CommentCRC32
decToHex(this.crc32(utfEncodedComment), 4) +
// UnicodeName
utfEncodedComment;
extraFields +=
// Info-ZIP Unicode Path Extra Field
"\x75\x63" +
// size
decToHex(unicodeCommentExtraField.length, 2) +
// content
unicodeCommentExtraField;
}
var header = "";
// version needed to extract
header += "\x0A\x00";
// general purpose bit flag
// set bit 11 if utf8
header += (useUTF8ForFileName || useUTF8ForComment) ? "\x00\x08" : "\x00\x00";
// compression method
header += compressedObject.compression.magic;
// last mod file time
header += decToHex(dosTime, 2);
// last mod file date
header += decToHex(dosDate, 2);
// crc-32
header += decToHex(compressedObject.crc32, 4);
// compressed size
header += decToHex(compressedObject.compressedSize, 4);
// uncompressed size
header += decToHex(compressedObject.uncompressedSize, 4);
// file name length
header += decToHex(utfEncodedFileName.length, 2);
// extra field length
header += decToHex(extraFields.length, 2);
var fileRecord = signature.LOCAL_FILE_HEADER + header + utfEncodedFileName + extraFields;
var dirRecord = signature.CENTRAL_FILE_HEADER +
// version made by (00: DOS)
"\x14\x00" +
// file header (common to file and central directory)
header +
// file comment length
decToHex(utfEncodedComment.length, 2) +
// disk number start
"\x00\x00" +
// internal file attributes TODO
"\x00\x00" +
// external file attributes
(dir === true ? "\x10\x00\x00\x00" : "\x00\x00\x00\x00") +
// relative offset of local header
decToHex(offset, 4) +
// file name
utfEncodedFileName +
// extra field
extraFields +
// file comment
utfEncodedComment;
return {
fileRecord: fileRecord,
dirRecord: dirRecord,
compressedObject: compressedObject
};
};
/**
* Generate the EOCD record.
* @param {Number} entriesCount the number of entries in the zip file.
* @param {Number} centralDirLength the length (in bytes) of the central dir.
* @param {Number} localDirLength the length (in bytes) of the local dir.
* @param {String} utfEncodedComment the zip file comment as a binary string.
* @return {String} the EOCD record.
*/
var generateCentralDirectoryEnd = function (entriesCount, centralDirLength, localDirLength, utfEncodedComment) {
var dirEnd = "";
// end of central dir signature
dirEnd = signature.CENTRAL_DIRECTORY_END +
// number of this disk
"\x00\x00" +
// number of the disk with the start of the central directory
"\x00\x00" +
// total number of entries in the central directory on this disk
decToHex(entriesCount, 2) +
// total number of entries in the central directory
decToHex(entriesCount, 2) +
// size of the central directory 4 bytes
decToHex(centralDirLength, 4) +
// offset of start of central directory with respect to the starting disk number
decToHex(localDirLength, 4) +
// .ZIP file comment length
decToHex(utfEncodedComment.length, 2) +
// .ZIP file comment
utfEncodedComment;
return dirEnd;
};
/**
* Find the compression to use.
* @param {String} fileCompression the compression defined at the file level, if any.
* @param {String} zipCompression the compression defined at the load() level.
* @return {Object} the compression object to use.
*/
var getCompression = function (fileCompression, zipCompression) {
var compressionName = fileCompression || zipCompression;
var compression = compressions[compressionName];
if (!compression) {
throw new Error(compressionName + " is not a valid compression method !");
}
return compression;
};
/**
* Compress every entries in the given object.
* @param {Object} files the object containing the files, one file per attribute of the object.
* @param {String} zipCompression the upper case name of the compression to use for the zip file.
* @return {Array} an array of compressed `ZipObject`s.
*/
exports.prepareCompressedEntries = function (files, zipCompression) {
var compressedEntries = [];
for (var name in files) {
if (!files.hasOwnProperty(name)) {
continue;
}
var file = files[name];
var compression = getCompression(file.options.compression, zipCompression);
file._compress(compression);
compressedEntries.push(file);
}
return compressedEntries;
};
/**
* Compress every entries in the given object.
* @param {Object} files the object containing the files, one file per attribute of the object.
* @param {String} zipCompression the upper case name of the compression to use for the zip file.
* @param {Function} callback the function to call with the result.
* The callback is called with :
* - an error (if any)
* - an array of compressed `ZipObject`s.
*/
exports.prepareCompressedEntriesAsync = function (files, zipCompression, callback) {
var steps = [];
var compressOneFileFn = function (file, compression) {
return function (entries, cb) {
file._compressAsync(compression, function (err, compressed) {
if (err) {
cb(err, null);
return;
}
// assuming that `file` contains already `compressed`.
entries.push(file);
cb(null, entries);
});
};
};
for (var name in files) {
if (!files.hasOwnProperty(name)) {
continue;
}
var file = files[name];
var compression = null;
try {
compression = getCompression(file.options.compression, zipCompression);
} catch (e) {
utils.delay(callback, [e, null]);
return;
}
steps.push(compressOneFileFn(file, compression));
}
utils.asyncSequence([], steps, callback);
};
/**
* Generate a zip file with the given compressed `ZipObject`s.
* @param {String} type the lower case name of the output type.
* @param {Array} entries an array of compressed `ZipObject`s.
* @param {String} comment the comment of the zip file.
* @return {String|Uint8Array|ArrayBuffer|Buffer|Blob} the zip file
*/
exports.generateZipFile = function(type, entries, comment) {
var zipData = [],
localDirLength = 0,
centralDirLength = 0,
writer, i, len,
utfEncodedComment = utils.transformTo("string", utf8.utf8encode(comment));
// first, generate all the zip parts.
for(i = 0, len = entries.length; i < len ; i++) {
var file = entries[i];
var compressedObject = file._data;
var zipPart = generateZipParts(file, compressedObject, localDirLength);
localDirLength += zipPart.fileRecord.length + compressedObject.compressedSize;
centralDirLength += zipPart.dirRecord.length;
zipData.push(zipPart);
}
var dirEnd = generateCentralDirectoryEnd(zipData.length, centralDirLength, localDirLength, utfEncodedComment);
// we have all the parts (and the total length)
// time to create a writer !
if(type === "string" || type === "base64") {
writer = new StringWriter(localDirLength + centralDirLength + dirEnd.length);
}else{
writer = new Uint8ArrayWriter(localDirLength + centralDirLength + dirEnd.length);
}
for (i = 0, len = zipData.length; i < len; i++) {
writer.append(zipData[i].fileRecord);
writer.append(zipData[i].compressedObject.compressedContent);
}
for (i = 0, len = zipData.length; i < len; i++) {
writer.append(zipData[i].dirRecord);
}
writer.append(dirEnd);
var zip = writer.finalize();
switch(type) {
case "blob" :
return utils.newBlob(utils.transformTo("arraybuffer", zip), "application/zip");
case "base64" :
return base64.encode(zip);
default :
return utils.transformTo(type, zip);
}
};
},{"./base64":1,"./compressions":3,"./crc32":4,"./signature":16,"./utf8":18,"./utils":19,"./writer/stringWriter":20,"./writer/uint8ArrayWriter":21}],9:[function(_dereq_,module,exports){
'use strict';
var base64 = _dereq_('./base64');
/**
Usage:
zip = new JSZip();
zip.file("hello.txt", "Hello, World!").file("tempfile", "nothing");
zip.folder("images").file("smile.gif", base64Data, {base64: true});
zip.file("Xmas.txt", "Ho ho ho !", {date : new Date("December 25, 2007 00:00:01")});
zip.remove("tempfile");
base64zip = zip.generate();
**/
/**
* Representation a of zip file in js
* @constructor
* @param {String=|ArrayBuffer=|Uint8Array=} data the data to load, if any (optional).
* @param {Object=} options the options for creating this objects (optional).
*/
function JSZip(data, options) {
// if this constructor is used without `new`, it adds `new` before itself:
if(!(this instanceof JSZip)) return new JSZip(data, options);
// object containing the files :
// {
// "folder/" : {...},
// "folder/data.txt" : {...}
// }
this.files = {};
this.comment = null;
// Where we are in the hierarchy
this.root = "";
if (data) {
this.load(data, options);
}
this.clone = function() {
var newObj = new JSZip();
for (var i in this) {
if (typeof this[i] !== "function") {
newObj[i] = this[i];
}
}
return newObj;
};
}
JSZip.prototype = _dereq_('./object');
JSZip.prototype.load = _dereq_('./load');
JSZip.support = _dereq_('./support');
JSZip.defaults = _dereq_('./defaults');
/**
* @deprecated
* This namespace will be removed in a future version without replacement.
*/
JSZip.utils = _dereq_('./deprecatedPublicUtils');
JSZip.base64 = {
/**
* @deprecated
* This method will be removed in a future version without replacement.
*/
encode : function(input) {
return base64.encode(input);
},
/**
* @deprecated
* This method will be removed in a future version without replacement.
*/
decode : function(input) {
return base64.decode(input);
}
};
JSZip.compressions = _dereq_('./compressions');
module.exports = JSZip;
},{"./base64":1,"./compressions":3,"./defaults":5,"./deprecatedPublicUtils":6,"./load":10,"./object":11,"./support":17}],10:[function(_dereq_,module,exports){
'use strict';
var base64 = _dereq_('./base64');
var ZipEntries = _dereq_('./zipEntries');
module.exports = function(data, options) {
var files, zipEntries, i, input;
options = options || {};
if (options.base64) {