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jszip.js
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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) 2009-2012 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 zlib.js released under the following license :
zlib.js 2012 - imaya [ https://github.com/imaya/zlib.js ] The MIT License
*/
!function(e){"object"==typeof exports?module.exports=e():"function"==typeof define&&define.amd?define(e):"undefined"!=typeof window?window.JSZip=e():"undefined"!=typeof global?global.JSZip=e():"undefined"!=typeof self&&(self.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(require,module,exports){
'use strict';
// private property
var _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
// public method for encoding
exports.encode = function(input, utf8) {
var output = "";
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
var i = 0;
while (i < input.length) {
chr1 = input.charCodeAt(i++);
chr2 = input.charCodeAt(i++);
chr3 = input.charCodeAt(i++);
enc1 = chr1 >> 2;
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
enc4 = chr3 & 63;
if (isNaN(chr2)) {
enc3 = enc4 = 64;
}
else if (isNaN(chr3)) {
enc4 = 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, utf8) {
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(require,module,exports){
'use strict';
function CompressedObject() {
this.compressedSize = 0;
this.uncompressedSize = 0;
this.crc32 = 0;
this.compressionMethod = null;
this.compressedContent = null;
}
CompressedObject.prototype = {
/**
* Return the decompressed content in an unspecified format.
* The format will depend on the decompressor.
* @return {Object} the decompressed content.
*/
getContent: function() {
return null; // see implementation
},
/**
* Return the compressed content in an unspecified format.
* The format will depend on the compressed conten source.
* @return {Object} the compressed content.
*/
getCompressedContent: function() {
return null; // see implementation
}
};
module.exports = CompressedObject;
},{}],3:[function(require,module,exports){
'use strict';
exports.STORE = {
magic: "\x00\x00",
compress: function(content) {
return content; // no compression
},
uncompress: function(content) {
return content; // no compression
},
compressInputType: null,
uncompressInputType: null
};
exports.DEFLATE = require('./flate');
},{"./flate":6}],4:[function(require,module,exports){
'use strict';
var utils = require('./utils');
function DataReader(data) {
this.data = null; // type : see implementation
this.length = 0;
this.index = 0;
}
DataReader.prototype = {
/**
* Check that the offset will not go too far.
* @param {string} offset the additional offset to check.
* @throws {Error} an Error if the offset is out of bounds.
*/
checkOffset: function(offset) {
this.checkIndex(this.index + offset);
},
/**
* Check that the specifed index will not be too far.
* @param {string} newIndex the index to check.
* @throws {Error} an Error if the index is out of bounds.
*/
checkIndex: function(newIndex) {
if (this.length < newIndex || newIndex < 0) {
throw new Error("End of data reached (data length = " + this.length + ", asked index = " + (newIndex) + "). Corrupted zip ?");
}
},
/**
* Change the index.
* @param {number} newIndex The new index.
* @throws {Error} if the new index is out of the data.
*/
setIndex: function(newIndex) {
this.checkIndex(newIndex);
this.index = newIndex;
},
/**
* Skip the next n bytes.
* @param {number} n the number of bytes to skip.
* @throws {Error} if the new index is out of the data.
*/
skip: function(n) {
this.setIndex(this.index + n);
},
/**
* Get the byte at the specified index.
* @param {number} i the index to use.
* @return {number} a byte.
*/
byteAt: function(i) {
// see implementations
},
/**
* Get the next number with a given byte size.
* @param {number} size the number of bytes to read.
* @return {number} the corresponding number.
*/
readInt: function(size) {
var result = 0,
i;
this.checkOffset(size);
for (i = this.index + size - 1; i >= this.index; i--) {
result = (result << 8) + this.byteAt(i);
}
this.index += size;
return result;
},
/**
* Get the next string with a given byte size.
* @param {number} size the number of bytes to read.
* @return {string} the corresponding string.
*/
readString: function(size) {
return utils.transformTo("string", this.readData(size));
},
/**
* Get raw data without conversion, <size> bytes.
* @param {number} size the number of bytes to read.
* @return {Object} the raw data, implementation specific.
*/
readData: function(size) {
// see implementations
},
/**
* Find the last occurence of a zip signature (4 bytes).
* @param {string} sig the signature to find.
* @return {number} the index of the last occurence, -1 if not found.
*/
lastIndexOfSignature: function(sig) {
// see implementations
},
/**
* Get the next date.
* @return {Date} the date.
*/
readDate: function() {
var dostime = this.readInt(4);
return new Date(
((dostime >> 25) & 0x7f) + 1980, // year
((dostime >> 21) & 0x0f) - 1, // month
(dostime >> 16) & 0x1f, // day
(dostime >> 11) & 0x1f, // hour
(dostime >> 5) & 0x3f, // minute
(dostime & 0x1f) << 1); // second
}
};
module.exports = DataReader;
},{"./utils":14}],5:[function(require,module,exports){
'use strict';
exports.base64 = false;
exports.binary = false;
exports.dir = false;
exports.date = null;
exports.compression = null;
},{}],6:[function(require,module,exports){
'use strict';
var USE_TYPEDARRAY = (typeof Uint8Array !== 'undefined') && (typeof Uint16Array !== 'undefined') && (typeof Uint32Array !== 'undefined');
var ZlibDeflate = require('zlibjs/bin/rawdeflate.min').Zlib;
var ZlibInflate = require('zlibjs/bin/rawinflate.min').Zlib;
exports.uncompressInputType = USE_TYPEDARRAY ? "uint8array" : "array";
exports.compressInputType = USE_TYPEDARRAY ? "uint8array" : "array";
exports.magic = "\x08\x00";
exports.compress = function(input) {
var deflate = new ZlibDeflate.RawDeflate(input);
return deflate.compress();
};
exports.uncompress = function(input) {
var inflate = new ZlibInflate.RawInflate(input);
return inflate.decompress();
};
},{"zlibjs/bin/rawdeflate.min":19,"zlibjs/bin/rawinflate.min":20}],7:[function(require,module,exports){
'use strict';
/**
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) {
// object containing the files :
// {
// "folder/" : {...},
// "folder/data.txt" : {...}
// }
this.files = {};
// 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 = require('./object');
JSZip.prototype.load = require('./load');
JSZip.support = require('./support');
JSZip.defaults = require('./defaults');
JSZip.utils = require('./utils');
JSZip.base64 = require('./base64');
JSZip.compressions = require('./compressions');
module.exports = JSZip;
},{"./base64":1,"./compressions":3,"./defaults":5,"./load":8,"./object":9,"./support":12,"./utils":14}],8:[function(require,module,exports){
'use strict';
var base64 = require('./base64');
var ZipEntries = require('./zipEntries');
module.exports = function(data, options) {
var files, zipEntries, i, input;
options = options || {};
if (options.base64) {
data = base64.decode(data);
}
zipEntries = new ZipEntries(data, options);
files = zipEntries.files;
for (i = 0; i < files.length; i++) {
input = files[i];
this.file(input.fileName, input.decompressed, {
binary: true,
optimizedBinaryString: true,
date: input.date,
dir: input.dir
});
}
return this;
};
},{"./base64":1,"./zipEntries":15}],9:[function(require,module,exports){
'use strict';
var support = require('./support');
var utils = require('./utils');
var signature = require('./signature');
var defaults = require('./defaults');
var base64 = require('./base64');
var compressions = require('./compressions');
var CompressedObject = require('./compressedObject');
var nodeBuffer = require('./nodeBuffer');
/**
* Returns the raw data of a ZipObject, decompress the content if necessary.
* @param {ZipObject} file the file to use.
* @return {String|ArrayBuffer|Uint8Array|Buffer} the data.
*/
var textEncoder, textDecoder;
if (
support.uint8array &&
typeof TextEncoder === "function" &&
typeof TextDecoder === "function"
) {
textEncoder = new TextEncoder("utf-8");
textDecoder = new TextDecoder("utf-8");
}
var getRawData = function(file) {
if (file._data instanceof CompressedObject) {
file._data = file._data.getContent();
file.options.binary = true;
file.options.base64 = false;
if (utils.getTypeOf(file._data) === "uint8array") {
var copy = file._data;
// 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).
file._data = new Uint8Array(copy.length);
// with an empty Uint8Array, Opera fails with a "Offset larger than array size"
if (copy.length !== 0) {
file._data.set(copy, 0);
}
}
}
return file._data;
};
/**
* Returns the data of a ZipObject in a binary form. If the content is an unicode string, encode it.
* @param {ZipObject} file the file to use.
* @return {String|ArrayBuffer|Uint8Array|Buffer} the data.
*/
var getBinaryData = function(file) {
var result = getRawData(file),
type = utils.getTypeOf(result);
if (type === "string") {
if (!file.options.binary) {
// unicode text !
// unicode string => binary string is a painful process, check if we can avoid it.
if (textEncoder) {
return textEncoder.encode(result);
}
if (support.nodebuffer) {
return nodeBuffer(result, "utf-8");
}
}
return file.asBinary();
}
return result;
};
/**
* Transform this._data into a string.
* @param {function} filter a function String -> String, applied if not null on the result.
* @return {String} the string representing this._data.
*/
var dataToString = function(asUTF8) {
var result = getRawData(this);
if (result === null || typeof result === "undefined") {
return "";
}
// if the data is a base64 string, we decode it before checking the encoding !
if (this.options.base64) {
result = base64.decode(result);
}
if (asUTF8 && this.options.binary) {
// JSZip.prototype.utf8decode supports arrays as input
// skip to array => string step, utf8decode will do it.
result = out.utf8decode(result);
}
else {
// no utf8 transformation, do the array => string step.
result = utils.transformTo("string", result);
}
if (!asUTF8 && !this.options.binary) {
result = out.utf8encode(result);
}
return result;
};
/**
* A simple object representing a file in the zip file.
* @constructor
* @param {string} name the name of the file
* @param {String|ArrayBuffer|Uint8Array|Buffer} data the data
* @param {Object} options the options of the file
*/
var ZipObject = function(name, data, options) {
this.name = name;
this._data = data;
this.options = options;
};
ZipObject.prototype = {
/**
* Return the content as UTF8 string.
* @return {string} the UTF8 string.
*/
asText: function() {
return dataToString.call(this, true);
},
/**
* Returns the binary content.
* @return {string} the content as binary.
*/
asBinary: function() {
return dataToString.call(this, false);
},
/**
* Returns the content as a nodejs Buffer.
* @return {Buffer} the content as a Buffer.
*/
asNodeBuffer: function() {
var result = getBinaryData(this);
return utils.transformTo("nodebuffer", result);
},
/**
* Returns the content as an Uint8Array.
* @return {Uint8Array} the content as an Uint8Array.
*/
asUint8Array: function() {
var result = getBinaryData(this);
return utils.transformTo("uint8array", result);
},
/**
* Returns the content as an ArrayBuffer.
* @return {ArrayBuffer} the content as an ArrayBufer.
*/
asArrayBuffer: function() {
return this.asUint8Array().buffer;
}
};
/**
* 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;
};
/**
* Merge the objects passed as parameters into a new one.
* @private
* @param {...Object} var_args All objects to merge.
* @return {Object} a new object with the data of the others.
*/
var extend = function() {
var result = {}, i, attr;
for (i = 0; i < arguments.length; i++) { // arguments is not enumerable in some browsers
for (attr in arguments[i]) {
if (arguments[i].hasOwnProperty(attr) && typeof result[attr] === "undefined") {
result[attr] = arguments[i][attr];
}
}
}
return result;
};
/**
* Transforms the (incomplete) options from the user into the complete
* set of options to create a file.
* @private
* @param {Object} o the options from the user.
* @return {Object} the complete set of options.
*/
var prepareFileAttrs = function(o) {
o = o || {};
if (o.base64 === true && (o.binary === null || o.binary === undefined)) {
o.binary = true;
}
o = extend(o, defaults);
o.date = o.date || new Date();
if (o.compression !== null) o.compression = o.compression.toUpperCase();
return o;
};
/**
* Add a file in the current folder.
* @private
* @param {string} name the name of the file
* @param {String|ArrayBuffer|Uint8Array|Buffer} data the data of the file
* @param {Object} o the options of the file
* @return {Object} the new file.
*/
var fileAdd = function(name, data, o) {
// be sure sub folders exist
var parent = parentFolder(name),
dataType = utils.getTypeOf(data);
if (parent) {
folderAdd.call(this, parent);
}
o = prepareFileAttrs(o);
if (o.dir || data === null || typeof data === "undefined") {
o.base64 = false;
o.binary = false;
data = null;
}
else if (dataType === "string") {
if (o.binary && !o.base64) {
// optimizedBinaryString == true means that the file has already been filtered with a 0xFF mask
if (o.optimizedBinaryString !== true) {
// this is a string, not in a base64 format.
// Be sure that this is a correct "binary string"
data = utils.string2binary(data);
}
}
}
else { // arraybuffer, uint8array, ...
o.base64 = false;
o.binary = true;
if (!dataType && !(data instanceof CompressedObject)) {
throw new Error("The data of '" + name + "' is in an unsupported format !");
}
// special case : it's way easier to work with Uint8Array than with ArrayBuffer
if (dataType === "arraybuffer") {
data = utils.transformTo("uint8array", data);
}
}
var object = new ZipObject(name, data, o);
this.files[name] = object;
return object;
};
/**
* Find the parent folder of the path.
* @private
* @param {string} path the path to use
* @return {string} the parent folder, or ""
*/
var parentFolder = function(path) {
if (path.slice(-1) == '/') {
path = path.substring(0, path.length - 1);
}
var lastSlash = path.lastIndexOf('/');
return (lastSlash > 0) ? path.substring(0, lastSlash) : "";
};
/**
* Add a (sub) folder in the current folder.
* @private
* @param {string} name the folder's name
* @return {Object} the new folder.
*/
var folderAdd = function(name) {
// Check the name ends with a /
if (name.slice(-1) != "/") {
name += "/"; // IE doesn't like substr(-1)
}
// Does this folder already exist?
if (!this.files[name]) {
fileAdd.call(this, name, null, {
dir: true
});
}
return this.files[name];
};
/**
* Generate a JSZip.CompressedObject for a given zipOject.
* @param {ZipObject} file the object to read.
* @param {JSZip.compression} compression the compression to use.
* @return {JSZip.CompressedObject} the compressed result.
*/
var generateCompressedObjectFrom = function(file, compression) {
var result = new CompressedObject(),
content;
// the data has not been decompressed, we might reuse things !
if (file._data instanceof CompressedObject) {
result.uncompressedSize = file._data.uncompressedSize;
result.crc32 = file._data.crc32;
if (result.uncompressedSize === 0 || file.options.dir) {
compression = compressions['STORE'];
result.compressedContent = "";
result.crc32 = 0;
}
else if (file._data.compressionMethod === compression.magic) {
result.compressedContent = file._data.getCompressedContent();
}
else {
content = file._data.getContent();
// need to decompress / recompress
result.compressedContent = compression.compress(utils.transformTo(compression.compressInputType, content));
}
}
else {
// have uncompressed data
content = getBinaryData(file);
if (!content || content.length === 0 || file.options.dir) {
compression = compressions['STORE'];
content = "";
}
result.uncompressedSize = content.length;
result.crc32 = this.crc32(content);
result.compressedContent = compression.compress(utils.transformTo(compression.compressInputType, content));
}
result.compressedSize = result.compressedContent.length;
result.compressionMethod = compression.magic;
return result;
};
/**
* Generate the various parts used in the construction of the final zip file.
* @param {string} name the file name.
* @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(name, file, compressedObject, offset) {
var data = compressedObject.compressedContent,
utfEncodedFileName = this.utf8encode(file.name),
useUTF8 = utfEncodedFileName !== file.name,
o = file.options,
dosTime,
dosDate,
extraFields = "",
unicodePathExtraField = "";
// 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 = o.date.getHours();
dosTime = dosTime << 6;
dosTime = dosTime | o.date.getMinutes();
dosTime = dosTime << 5;
dosTime = dosTime | o.date.getSeconds() / 2;
dosDate = o.date.getFullYear() - 1980;
dosDate = dosDate << 4;
dosDate = dosDate | (o.date.getMonth() + 1);
dosDate = dosDate << 5;
dosDate = dosDate | o.date.getDate();
if (useUTF8) {
// 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(this.crc32(utfEncodedFileName), 4) +
// UnicodeName
utfEncodedFileName;
extraFields +=
// Info-ZIP Unicode Path Extra Field
"\x75\x70" +
// size
decToHex(unicodePathExtraField.length, 2) +
// content
unicodePathExtraField;
}
var header = "";
// version needed to extract
header += "\x0A\x00";
// general purpose bit flag
// set bit 11 if utf8
header += useUTF8 ? "\x00\x08" : "\x00\x00";
// compression method
header += compressedObject.compressionMethod;
// 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
"\x00\x00" +
// disk number start
"\x00\x00" +
// internal file attributes TODO
"\x00\x00" +
// external file attributes
(file.options.dir === true ? "\x10\x00\x00\x00" : "\x00\x00\x00\x00") +
// relative offset of local header
decToHex(offset, 4) +
// file name
utfEncodedFileName +
// extra field
extraFields;
return {
fileRecord: fileRecord,
dirRecord: dirRecord,
compressedObject: compressedObject
};
};
/**
* An object to write any content to a string.
* @constructor
*/
var StringWriter = function() {
this.data = [];
};
StringWriter.prototype = {
/**
* Append any content to the current string.
* @param {Object} input the content to add.
*/
append: function(input) {
input = utils.transformTo("string", input);
this.data.push(input);
},
/**
* Finalize the construction an return the result.
* @return {string} the generated string.
*/
finalize: function() {
return this.data.join("");
}
};
/**
* An object to write any content to an Uint8Array.
* @constructor
* @param {number} length The length of the array.
*/
var Uint8ArrayWriter = function(length) {
this.data = new Uint8Array(length);
this.index = 0;
};
Uint8ArrayWriter.prototype = {
/**
* Append any content to the current array.
* @param {Object} input the content to add.
*/
append: function(input) {
if (input.length !== 0) {
// with an empty Uint8Array, Opera fails with a "Offset larger than array size"
input = utils.transformTo("uint8array", input);
this.data.set(input, this.index);
this.index += input.length;
}
},
/**
* Finalize the construction an return the result.
* @return {Uint8Array} the generated array.
*/
finalize: function() {
return this.data;
}
};
// return the actual prototype of JSZip
var out = {
/**
* Read an existing zip and merge the data in the current JSZip object.
* The implementation is in jszip-load.js, don't forget to include it.
* @param {String|ArrayBuffer|Uint8Array|Buffer} stream The stream to load
* @param {Object} options Options for loading the stream.
* options.base64 : is the stream in base64 ? default : false
* @return {JSZip} the current JSZip object
*/
load: function(stream, options) {
throw new Error("Load method is not defined. Is the file jszip-load.js included ?");
},
/**
* Filter nested files/folders with the specified function.
* @param {Function} search the predicate to use :
* function (relativePath, file) {...}
* It takes 2 arguments : the relative path and the file.
* @return {Array} An array of matching elements.
*/
filter: function(search) {
var result = [],
filename, relativePath, file, fileClone;
for (filename in this.files) {
if (!this.files.hasOwnProperty(filename)) {
continue;
}
file = this.files[filename];
// return a new object, don't let the user mess with our internal objects :)
fileClone = new ZipObject(file.name, file._data, extend(file.options));
relativePath = filename.slice(this.root.length, filename.length);
if (filename.slice(0, this.root.length) === this.root && // the file is in the current root
search(relativePath, fileClone)) { // and the file matches the function
result.push(fileClone);
}
}
return result;
},
/**
* Add a file to the zip file, or search a file.
* @param {string|RegExp} name The name of the file to add (if data is defined),
* the name of the file to find (if no data) or a regex to match files.
* @param {String|ArrayBuffer|Uint8Array|Buffer} data The file data, either raw or base64 encoded
* @param {Object} o File options
* @return {JSZip|Object|Array} this JSZip object (when adding a file),
* a file (when searching by string) or an array of files (when searching by regex).
*/
file: function(name, data, o) {
if (arguments.length === 1) {
if (utils.isRegExp(name)) {
var regexp = name;
return this.filter(function(relativePath, file) {
return !file.options.dir && regexp.test(relativePath);
});
}
else { // text
return this.filter(function(relativePath, file) {
return !file.options.dir && relativePath === name;
})[0] || null;
}
}
else { // more than one argument : we have data !
name = this.root + name;
fileAdd.call(this, name, data, o);
}
return this;
},
/**
* Add a directory to the zip file, or search.
* @param {String|RegExp} arg The name of the directory to add, or a regex to search folders.
* @return {JSZip} an object with the new directory as the root, or an array containing matching folders.
*/
folder: function(arg) {
if (!arg) {
return this;
}
if (utils.isRegExp(arg)) {
return this.filter(function(relativePath, file) {
return file.options.dir && arg.test(relativePath);
});
}
// else, name is a new folder
var name = this.root + arg;
var newFolder = folderAdd.call(this, name);
// Allow chaining by returning a new object with this folder as the root
var ret = this.clone();
ret.root = newFolder.name;
return ret;
},
/**
* Delete a file, or a directory and all sub-files, from the zip
* @param {string} name the name of the file to delete
* @return {JSZip} this JSZip object
*/
remove: function(name) {
name = this.root + name;
var file = this.files[name];
if (!file) {
// Look for any folders
if (name.slice(-1) != "/") {
name += "/";
}
file = this.files[name];
}
if (file) {
if (!file.options.dir) {
// file
delete this.files[name];
}
else {
// folder
var kids = this.filter(function(relativePath, file) {
return file.name.slice(0, name.length) === name;
});
for (var i = 0; i < kids.length; i++) {
delete this.files[kids[i].name];
}
}
}
return this;
},
/**
* Generate the complete zip file
* @param {Object} options the options to generate the zip file :
* - base64, (deprecated, use type instead) true to generate base64.
* - compression, "STORE" by default.
* - type, "base64" by default. Values are : string, base64, uint8array, arraybuffer, blob.
* @return {String|Uint8Array|ArrayBuffer|Buffer|Blob} the zip file
*/
generate: function(options) {
options = extend(options || {}, {
base64: true,
compression: "STORE",
type: "base64"