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{
"name": "jszip",
"homepage": "http://stuartk.com/jszip",
"authors": [
"Stuart Knightley <stuart@stuartk.com>"
],
"description": "Create, read and edit .zip files with Javascript http://stuartk.com/jszip",
"main": "dist/jszip.js",
"keywords": [
"zip",
"deflate",
"inflate"
],
"license": "MIT or GPLv3",
"ignore": [
"**/.*",
"node_modules",
"bower_components",
"test",
"tests"
],
"version": "2.6.0",
"_release": "2.6.0",
"_resolution": {
"type": "version",
"tag": "v2.6.0",
"commit": "8f190955e9328b768d7fc4f2770234fd53c407a7"
},
"_source": "git://github.com/Stuk/jszip.git",
"_target": "v2.6.0",
"_originalSource": "Stuk/jszip"
}

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---
title: Changelog
layout: default
section: main
---
### v2.6.0 2016-03-23
- publish `dist/` files in the npm package (see [#225](https://github.com/Stuk/jszip/pull/225)).
- update pako to v1.0.0 (see [#261](https://github.com/Stuk/jszip/pull/261)).
- add support of Array in JSZip#load (see [#252](https://github.com/Stuk/jszip/pull/252)).
- improve file name / comment encoding support (see [#211](https://github.com/Stuk/jszip/pull/211)).
- handle prepended data (see [#266](https://github.com/Stuk/jszip/pull/266)).
- improve platform coverage in tests (see [#233](https://github.com/Stuk/jszip/pull/233) and [#269](https://github.com/Stuk/jszip/pull/269)).
### v2.5.0 2015-03-10
- add support for custom mime-types (see [#199](https://github.com/Stuk/jszip/issues/199)).
- add an option to set the DEFLATE level (see [#201](https://github.com/Stuk/jszip/issues/201)).
- improve the error message with corrupted zip (see [#202](https://github.com/Stuk/jszip/issues/202)).
- add support for UNIX / DOS permissions (see [#200](https://github.com/Stuk/jszip/issues/200) and [#205](https://github.com/Stuk/jszip/issues/205)).
### v2.4.0 2014-07-24
- update pako to 0.2.5 (see [#156](https://github.com/Stuk/jszip/issues/156)).
- make JSZip work in a Firefox addon context (see [#151](https://github.com/Stuk/jszip/issues/151)).
- add an option (`createFolders`) to control the subfolder generation (see [#154](https://github.com/Stuk/jszip/issues/154)).
- allow `Buffer` polyfill in the browser (see [#139](https://github.com/Stuk/jszip/issues/139)).
### v2.3.0 2014-06-18
- don't generate subfolders (see [#130](https://github.com/Stuk/jszip/issues/130)).
- add comment support (see [#134](https://github.com/Stuk/jszip/issues/134)).
- on `ZipObject#options`, the attributes `date` and `dir` have been deprecated and are now on `ZipObject` (see [the upgrade guide](http://stuk.github.io/jszip/documentation/upgrade_guide.html)).
- on `ZipObject#options`, the attributes `base64` and `binary` have been deprecated (see [the upgrade guide](http://stuk.github.io/jszip/documentation/upgrade_guide.html)).
- deprecate internal functions exposed in the public API (see [#123](https://github.com/Stuk/jszip/issues/123)).
- improve UTF-8 support (see [#142](https://github.com/Stuk/jszip/issues/142)).
### v2.2.2, 2014-05-01
- update pako to v0.2.1, fix an error when decompressing some files (see [#126](https://github.com/Stuk/jszip/issues/126)).
### v2.2.1, 2014-04-23
- fix unreadable generated file on Windows 8 (see [#112](https://github.com/Stuk/jszip/issues/112)).
- replace zlibjs with pako.
### v2.2.0, 2014-02-25
- make the `new` operator optional before the `JSZip` constructor (see [#93](https://github.com/Stuk/jszip/pull/93)).
- update zlibjs to v0.2.0.
### v2.1.1, 2014-02-13
- use the npm package for zlib.js instead of the github url.
### v2.1.0, 2014-02-06
- split the files and use Browserify to generate the final file (see [#74](https://github.com/Stuk/jszip/pull/74))
- packaging change : instead of 4 files (jszip.js, jszip-load.js, jszip-inflate.js, jszip-deflate.js) we now have 2 files : dist/jszip.js and dist/jszip.min.js
- add component/bower support
- rename variable: 'byte' is a reserved word (see [#76](https://github.com/Stuk/jszip/pull/76))
- add support for the unicode path extra field (see [#82](https://github.com/Stuk/jszip/pull/82))
- ensure that the generated files have a header with the licenses (see [#80](https://github.com/Stuk/jszip/pull/80))
# v2.0.0, 2013-10-20
- `JSZipBase64` has been renamed to `JSZip.base64`.
- The `data` attribute on the object returned by `zip.file(name)` has been removed. Use `asText()`, `asBinary()`, `asUint8Array()`, `asArrayBuffer()` or `asNodeBuffer()`.
- [Fix issue with Android browser](https://github.com/Stuk/jszip/pull/60)
- The compression/decompression methods now give their input type with the `compressInputType` and `uncompressInputType` attributes.
- Lazily decompress data when needed and [improve performance in general](https://github.com/Stuk/jszip/pull/56)
- [Add support for `Buffer` in Node.js](https://github.com/Stuk/jszip/pull/57).
- Package for CommonJS/npm.
### v1.0.1, 2013-03-04
- Fixed an issue when generating a compressed zip file with empty files or folders, see #33.
- With bad data (null or undefined), asText/asBinary/asUint8Array/asArrayBuffer methods now return an empty string, see #36.
# v1.0.0, 2013-02-14
- First release after a long period without version.

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/*jshint node: true */
module.exports = function(grunt) {
var browsers = [{
browserName: "iphone",
platform: "OS X 10.8",
version: "6"
}, {
browserName: "iphone",
platform: "OS X 10.10",
version: "9.2"
}, {
browserName: "android",
platform: "Linux",
version: "4.0"
}, {
browserName: "android",
platform: "Linux",
version: "4.4"
}, {
browserName: "android",
platform: "Linux",
version: "5.1"
}, {
browserName: "firefox",
platform: "Windows 10"
}, {
browserName: "chrome",
platform: "Windows 10"
}, {
browserName: "internet explorer",
platform: "XP",
version: "7"
}, {
browserName: "internet explorer",
platform: "Windows 7",
version: "8"
}, {
browserName: "internet explorer",
platform: "Windows 7",
version: "9"
}, {
browserName: "internet explorer",
platform: "Windows 8",
version: "10"
}, {
browserName: "internet explorer",
platform: "Windows 10",
version: "11"
}, {
browserName: "microsoftedge",
platform: "Windows 10",
version: "13.10586"
}, {
browserName: "opera",
platform: "Windows 2008",
version: "12"
}, {
browserName: "safari",
platform: "OS X 10.8",
version: "6"
}, {
browserName: "safari",
platform: "OS X 10.9",
version: "7"
}, {
browserName: "safari",
platform: "OS X 10.10",
version: "8"
}, {
browserName: "safari",
platform: "OS X 10.11",
version: "9"
}];
var tags = [];
if (process.env.TRAVIS_PULL_REQUEST && process.env.TRAVIS_PULL_REQUEST != "false") {
tags.push("pr" + process.env.TRAVIS_PULL_REQUEST);
} else if (process.env.TRAVIS_BRANCH) {
tags.push(process.env.TRAVIS_BRANCH);
}
grunt.initConfig({
connect: {
server: {
options: {
base: "",
port: 9999
}
}
},
'saucelabs-qunit': {
all: {
options: {
urls: ["http://127.0.0.1:9999/test/index.html"],
tunnelTimeout: 5,
build: process.env.TRAVIS_JOB_ID,
concurrency: 3,
browsers: browsers,
testname: "qunit tests",
tags: tags
}
}
},
jshint: {
options: {
jshintrc: "./.jshintrc"
},
all: ['./lib/*.js']
},
browserify: {
all: {
files: {
'dist/jszip.js': ['lib/index.js']
},
options: {
browserifyOptions: {
standalone: 'JSZip',
insertGlobalVars : {
Buffer: function () {
// instead of the full polyfill, we just use the raw value
// (or undefined).
return '(typeof Buffer !== "undefined" ? Buffer : undefined)';
}
}
},
postBundleCB: function(err, src, done) {
// add the license
var license = require('fs').readFileSync('lib/license_header.js');
// remove the source mapping of zlib.js, see #75
var srcWithoutSourceMapping = src.toString().replace(/\/\/@ sourceMappingURL=raw..flate.min.js.map/g, '');
done(err, license + srcWithoutSourceMapping);
}
}
}
},
uglify: {
options: {
report: 'gzip',
mangle: true,
preserveComments: 'some'
},
all: {
src: 'dist/jszip.js',
dest: 'dist/jszip.min.js'
}
}
});
grunt.loadNpmTasks("grunt-saucelabs");
grunt.loadNpmTasks("grunt-contrib-connect");
grunt.loadNpmTasks('grunt-browserify');
grunt.loadNpmTasks('grunt-contrib-jshint');
grunt.loadNpmTasks('grunt-contrib-uglify');
if (process.env.SAUCE_USERNAME && process.env.SAUCE_ACCESS_KEY) {
grunt.registerTask("test", ["connect", "saucelabs-qunit"]);
} else {
grunt.registerTask("test", []);
}
grunt.registerTask("build", ["browserify", "uglify"]);
grunt.registerTask("default", ["jshint", "build"]);
};

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JSZip is dual licensed. You may use it under the MIT license *or* the GPLv3
license.
The MIT License
===============
Copyright (c) 2009-2014 Stuart Knightley, David Duponchel, Franz Buchinger, António Afonso
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
GPL version 3
=============
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
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To protect your rights, we need to prevent others from denying you
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14. Revised Versions of this License.
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the GNU General Public License from time to time. Such new versions will
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Program specifies that a certain numbered version of the GNU General
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permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
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THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
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THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
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an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS

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JSZip [![Build Status](https://api.travis-ci.org/Stuk/jszip.svg?branch=master)](http://travis-ci.org/Stuk/jszip) [![Code Climate](https://codeclimate.com/github/Stuk/jszip/badges/gpa.svg)](https://codeclimate.com/github/Stuk/jszip)
=====
[![Selenium Test Status](https://saucelabs.com/browser-matrix/jszip.svg)](https://saucelabs.com/u/jszip)
A library for creating, reading and editing .zip files with Javascript, with a
lovely and simple API.
See http://stuartk.com/jszip for all the documentation.
```javascript
var zip = new JSZip();
zip.file("Hello.txt", "Hello World\n");
var img = zip.folder("images");
img.file("smile.gif", imgData, {base64: true});
var content = zip.generate({type:"blob"});
// see FileSaver.js
saveAs(content, "example.zip");
/*
Results in a zip containing
Hello.txt
images/
smile.gif
*/
```
License
-------
JSZip is dual-licensed. You may use it under the MIT license *or* the GPLv3
license. See [LICENSE.markdown](LICENSE.markdown).

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# will be overwritten by github, see https://help.github.com/articles/using-jekyll-with-pages
lsi: false
safe: true
source: ./
incremental: false
highlighter: rouge
gist:
noscript: false
# /overwritten
baseurl: /jszip
layouts_dir: ./documentation/_layouts
permalink: none
exclude: ['bin', 'README.md', 'node_modules']
kramdown:
input: GFM
hard_wrap: false
gems:
- jekyll-coffeescript
- jekyll-paginate

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{
"name": "jszip",
"homepage": "http://stuartk.com/jszip",
"authors": [
"Stuart Knightley <stuart@stuartk.com>"
],
"description": "Create, read and edit .zip files with Javascript http://stuartk.com/jszip",
"main": "dist/jszip.js",
"keywords": [
"zip",
"deflate",
"inflate"
],
"license": "MIT or GPLv3",
"ignore": [
"**/.*",
"node_modules",
"bower_components",
"test",
"tests"
]
}

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{
"name": "jszip",
"repo": "Stuk/jszip",
"description": "Create, read and edit .zip files with Javascript http://stuartk.com/jszip",
"version": "2.6.0",
"keywords": [
"zip",
"deflate",
"inflate"
],
"main": "dist/jszip.js",
"license": "MIT or GPLv3",
"scripts": [
"dist/jszip.js"
]
}

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Here are the notes I made while working through the ZIP file specification.
For each file:
local file header signature 4 bytes (0x04034b50)
version needed to extract 2 bytes
general purpose bit flag 2 bytes
compression method 2 bytes
last mod file time 2 bytes
last mod file date 2 bytes
crc-32 4 bytes
compressed size 4 bytes
uncompressed size 4 bytes
file name length 2 bytes
extra field length 2 bytes
|sig |v |g |c |t |d |crc |csz |usz |n |x |
PK.. ## 00 00 ?? ?? xxxx ???? ???? ?? 00
<file name><file data>
Central directory:
central file header signature 4 bytes (0x02014b50)
version made by 2 bytes
version needed to extract 2 bytes *
general purpose bit flag 2 bytes *
compression method 2 bytes *
last mod file time 2 bytes *
last mod file date 2 bytes *
crc-32 4 bytes *
compressed size 4 bytes *
uncompressed size 4 bytes *
file name length 2 bytes *
extra field length 2 bytes *
file comment length 2 bytes
disk number start 2 bytes
internal file attributes 2 bytes
external file attributes 4 bytes
relative offset of local header 4 bytes
file name (variable size)
extra field (variable size)
file comment (variable size)
|sig |vm|vx|g |c |d |t |crc |csz |usz |n |x |cm|dn|ia|xa |roff|
PK.. ## ## 00 00 ?? ?? xxxx ???? ???? ?? 00 00 00 00 xxxx ????
End of central directory:
end of central dir signature 4 bytes (0x06054b50)
number of this disk 2 bytes
number of the disk with the
start of the central directory 2 bytes
total number of entries in the
central directory on this disk 2 bytes
total number of entries in
the central directory 2 bytes
size of the central directory 4 bytes
offset of start of central
directory with respect to
the starting disk number 4 bytes
.ZIP file comment length 2 bytes
.ZIP file comment (variable size)
|sig |n1|n2|e |ne|size|off |cm|
PK.. 00 00 ?? ?? ???? ???? 00

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Zip format
----------
http://www.pkware.com/support/zip-application-note
http://www.xxcopy.com/xxcopy06.htm
Data URL
--------
https://developer.mozilla.org/en/The_data_URL_scheme
http://msdn.microsoft.com/en-us/library/cc848897(VS.85).aspx
http://www.phpied.com/mhtml-when-you-need-data-uris-in-ie7-and-under/
http://www.motobit.com/util/base64-decoder-encoder.asp
Saving files
------------
http://msdn.microsoft.com/en-us/library/ms536676(VS.85).aspx
http://msdn.microsoft.com/en-us/library/ms536419(VS.85).aspx
http://msdn.microsoft.com/en-us/library/ms537418(VS.85).aspx

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="Create .zip files using Javascript. Provides a simple API to place any content generated by Javascript into a .zip file for your users." />
<title>{{page.title}}</title>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
<!-- Optional theme -->
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap-theme.min.css">
<!-- Latest compiled and minified JavaScript -->
<!-- <script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script> -->
<link rel="stylesheet" href="{{site.baseurl}}/documentation/css/pygments.css">
<link rel="stylesheet" href="{{site.baseurl}}/documentation/css/main.css">
<script type="text/javascript" src="{{site.baseurl}}/dist/jszip.js"></script>
<script type="text/javascript" src="//stuk.github.io/jszip-utils/dist/jszip-utils.js"></script>
<!--
Mandatory in IE 6, 7, 8 and 9.
-->
<!--[if IE]>
<script type="text/javascript" src="//stuk.github.io/jszip-utils/dist/jszip-utils-ie.js"></script>
<![endif]-->
<!--
Any version of jQuery will do (it's just to write some examples), this one
happens to be available in our tests.
-->
<script type="text/javascript" src="{{site.baseurl}}/test/jquery-1.8.3.min.js"></script>
<script type="text/javascript" src="{{site.baseurl}}/vendor/FileSaver.js"></script>
</head>
<body>
<div class="container">
<div class="navbar navbar-default" role="navigation">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="{{site.baseurl}}/"><strong>JS</strong>Zip</a>
</div>
<ul class="nav navbar-nav">
<li {% if page.section == "api" %}class="active"{% endif %}>
<a href="{{site.baseurl}}/documentation/api_jszip.html">API</a>
</li>
<li {% if page.section == "example" %}class="active"{% endif %}>
<a href="{{site.baseurl}}/documentation/examples.html">How to / examples</a>
</li>
<li {% if page.section == "limitations" %}class="active"{% endif %}>
<a href="{{site.baseurl}}/documentation/limitations.html">Performances / limitations</a>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li>
<a href="https://github.com/Stuk/jszip">JSZip on Github</a>
</li>
</ul>
</div>
</div>
{% if page.section and page.fullpage != true %}
<div class="row">
<nav class="col-md-3">
{% case page.section %}
{% when "main" %}
<h4>JSZip users :</h4>
<ul class="nav">
<li><a href="{{site.baseurl}}/">Installation</a></li>
<li><a href="{{site.baseurl}}/documentation/faq.html">FAQ</a></li>
<li><a href="{{site.baseurl}}/CHANGES.html">Changelog</a></li>
<li><a href="{{site.baseurl}}/documentation/upgrade_guide.html">Upgrade guide</a></li>
<li><a href="https://github.com/Stuk/jszip/issues">Bug tracker</a></li>
</ul>
<h4>JSZip developers :</h4>
<ul class="nav">
<li><a href="{{site.baseurl}}/documentation/contributing.html">How to contribute</a></li>
<li><a href="https://github.com/Stuk/jszip/graphs/contributors">Contributors</a></li>
</ul>
{% when "api" %}
<ul class="nav">
<li><a href="{{site.baseurl}}/documentation/api_jszip.html">JSZip</a>
<ul>
<li><a href="{{site.baseurl}}/documentation/api_jszip/constructor.html">new JSZip() or JSZip()</a></li>
<li><a href="{{site.baseurl}}/documentation/api_jszip/constructor_load.html">new JSZip(data [,options])</a></li>
<li><a href="{{site.baseurl}}/documentation/api_jszip/file_name.html">JSZip#file(name)</a></li>
<li><a href="{{site.baseurl}}/documentation/api_jszip/file_regex.html">JSZip#file(regex)</a></li>
<li><a href="{{site.baseurl}}/documentation/api_jszip/file_data.html">JSZip#file(name, data [,options])</a></li>
<li><a href="{{site.baseurl}}/documentation/api_jszip/folder_data.html">JSZip#folder(name)</a></li>
<li><a href="{{site.baseurl}}/documentation/api_jszip/folder_regex.html">JSZip#folder(regex)</a></li>
<li><a href="{{site.baseurl}}/documentation/api_jszip/filter.html">JSZip#filter(predicate)</a></li>
<li><a href="{{site.baseurl}}/documentation/api_jszip/remove.html">JSZip#remove(name)</a></li>
<li><a href="{{site.baseurl}}/documentation/api_jszip/generate.html">JSZip#generate(options)</a></li>
<li><a href="{{site.baseurl}}/documentation/api_jszip/load.html">JSZip#load(data [, options])</a></li>
<li><a href="{{site.baseurl}}/documentation/api_jszip/support.html">JSZip.support</a></li>
</ul>
</li>
<li><a href="{{site.baseurl}}/documentation/api_zipobject.html">ZipObject</a></li>
</ul>
{% when "example" %}
<h4>How to ...</h4>
<ul class="nav">
<li><a href="{{site.baseurl}}/documentation/examples.html">Use JSZip</a></li>
<li><a href="{{site.baseurl}}/documentation/howto/read_zip.html">Read a file</a></li>
<li><a href="{{site.baseurl}}/documentation/howto/write_zip.html">Write a file</a></li>
</ul>
<h4>Examples</h4>
<ul class="nav">
<li><a href="{{site.baseurl}}/documentation/examples/read-local-file-api.html">Read local file</a></li>
<li><a href="{{site.baseurl}}/documentation/examples/get-binary-files-ajax.html">Read remote file</a></li>
<li><a href="{{site.baseurl}}/documentation/examples/download-zip-file.html">Give the user its zip file</a></li>
<li><a href="{{site.baseurl}}/documentation/examples/downloader.html">Mini app : downloader</a></li>
</ul>
{% endcase %}
<!-- <ul class="nav"> -->
<!-- <li><a href="{{site.baseurl}}/documentation/faq.html">FAQ</a></li> -->
<!-- </ul> -->
<!-- <li><a href="{{site.baseurl}}/">installation</a></li> -->
</nav>
{% endif %}
<div class="{% if page.section and page.fullpage != true%}col-md-9{% else %}col-md-12{% endif %}">
<h1>{{page.title}}</h1>
<!-- ===================== -->
<!-- === C O N T E N T === -->
<!-- ===================== -->
{{content}}
<!-- ===================== -->
<!-- == / C O N T E N T == -->
<!-- ===================== -->
</div>
</div>
</div>
<script>
// FIXME find how to do that cleanly
(function(){
var tables = document.getElementsByTagName("table");
for(var i = 0; i < tables.length; i++) {
tables[i].className += " table table-condensed table-striped table-bordered ";
}
})();
</script>
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-52085706-1', 'stuk.github.io');
ga('send', 'pageview');
</script>
</body>
</html>

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---
title: "JSZip API"
layout: default
section: api
---
An instance of JSZip represents a set of files. You can add them, remove them,
modify them. You can also import an existing zip file or generate one.
### Attributes
attribute name | type | description
---------------------|-------------|-------------
`files` | object | the [ZipObject]({{site.baseurl}}/documentation/api_zipobject.html)s inside the zip with the name as key. See [file(name)]({{site.baseurl}}/documentation/api_jszip/file_name.html).
`comment` | string | the comment of the zip file.

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---
title: "new JSZip() or JSZip()"
layout: default
section: api
---
__Description__ : Create a new JSZip instance.
__Arguments__ : None
__Returns__ : A new JSZip.
__Throws__ : Nothing.
<!-- __Complexity__ : Object creation in **O(1)**. -->
__Example__
```js
var zip = new JSZip();
// same as
var zip = JSZip();
```

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---
title: "new JSZip(data [,options]) or JSZip(data [,options])"
layout: default
section: api
---
This is a shortcut for
```js
var zip = new JSZip();
zip.load(data, options);
```
Please see the documentation of [load]({{site.baseurl}}/documentation/api_jszip/load.html).
__Example__
```js
var zip = new JSZip(data, options);
// same as
var zip = JSZip(data, options);
```

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---
title: "file(name, data [,options])"
layout: default
section: api
---
__Description__ : Add (or update) a file to the zip file.
__Arguments__
name | type | description
--------------------|---------|------------
name | string | the name of the file. You can specify folders in the name : the folder separator is a forward slash ("/").
data | String/ArrayBuffer/Uint8Array/Buffer | the content of the file.
options | object | the options.
Content of `options` :
name | type | default | description
------------|---------|---------|------------
base64 | boolean | `false` | set to `true` if the data is base64 encoded. For example image data from a `<canvas>` element. Plain text and HTML do not need this option.
binary | boolean | `false` | set to `true` if the data should be treated as raw content, `false` if this is a text. If base64 is used, this defaults to `true`, if the data is not a string, this will be set to `true`.
date | date | the current date | the last modification date.
compression | string | null | If set, specifies compression method to use for this specific file. If not, the default file compression will be used, see [generate(options)]({{site.baseurl}}/documentation/api_jszip/generate.html).
compressionOptions | object | `null` | the options to use when compressing the file, see [generate(options)]({{site.baseurl}}/documentation/api_jszip/generate.html).
comment | string | null | The comment for this file.
optimizedBinaryString | boolean | `false` | Set to true if (and only if) the input is a "binary string" and has already been prepared with a 0xFF mask.
createFolders | boolean | `false` | Set to true if folders in the file path should be automatically created, otherwise there will only be virtual folders that represent the path to the file.
unixPermissions | 16 bits number | null | The UNIX permissions of the file, if any.
dosPermissions | 6 bits number | null | The DOS permissions of the file, if any.
dir | boolean | false | Set to true if this is a directory and content should be ignored.
You shouldn't update the data given to this method : it is kept as it so any
update will impact the stored data.
__For the permissions__ :
The field `unixPermissions` also accepts a string representing the octal value :
"644", "755", etc. On nodejs you can use the `mode` attribute of
[nodejs' fs.Stats](http://nodejs.org/api/fs.html#fs_class_fs_stats).
See also [the platform option of generate()]({{site.baseurl}}/documentation/api_jszip/generate.html).
__About `dir`__ :
If `dir` is true or if a permission says it's a folder, this entry be flagged
as a folder and the content will be ignored.
__Returns__ : The current JSZip object, for chaining.
__Throws__ : An exception if the data is not in a supported format.
<!--
__Complexity__ : **O(1)** for anything but binary strings.
For binary strings (`data` is a string and `binary` = true), if
`optimizedBinaryString` is not set, the 0xFF mask will be applied giving a
complexity in **O(n)** where n is the size of the added data.
-->
__Example__
```js
zip.file("Hello.txt", "Hello World\n");
// base64
zip.file("smile.gif", "R0lGODdhBQAFAIACAAAAAP/eACwAAAAABQAFAAACCIwPkWerClIBADs=", {base64: true});
// from an ajax call with xhr.responseType = 'arraybuffer'
zip.file("smile.gif", arraybufferFromXhr);
// or on nodejs
zip.file("smile.gif", fs.readFileSync("smile.gif"));
zip.file("Xmas.txt", "Ho ho ho !", {date : new Date("December 25, 2007 00:00:01")});
zip.file("folder/file.txt", "file in folder");
zip.file("animals.txt", "dog,platypus\n").file("people.txt", "james,sebastian\n");
// result : Hello.txt, smile.gif, Xmas.txt, animals.txt, people.txt,
// folder/, folder/file.txt
// In the above case, the "folder" folder will not have a 'D'irectory attribute or Method property. The
// folder only exists as part of the path to "file.txt".
zip.file("folder/file.txt", "file in folder", {createFolders: true});
// In this case, the "folder" folder WILL have a 'D'irectory attribute and a Method property of "store".
// It will exist whether or not "file.txt" is present.
zip.file("script.sh", "echo 'hello world'", {
unixPermissions : "755"
});
// when generated with platform:UNIX, the script.sh file will be executable
```

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---
title: "file(name)"
layout: default
section: api
---
__Description__ : Get a file with the specified name. You can specify folders
in the name : the folder separator is a forward slash ("/").
__Arguments__
name | type | description
-----|--------|-------------
name | string | the name of the file.
__Returns__ : An instance of [ZipObject]({{site.baseurl}}/documentation/api_zipobject.html) representing
the file if any, `null` otherwise.
__Throws__ : Nothing.
<!-- __Complexity__ : This is a simple lookup in **O(1)**. -->
__Examples__
```js
var zip = new JSZip();
zip.file("file.txt", "content");
zip.file("file.txt").name // "file.txt"
zip.file("file.txt").asText() // "content"
zip.file("file.txt").options.dir // false
// utf8 example
var zip = new JSZip(zipFromAjaxWithUTF8);
zip.file("amount.txt").asText() // "€15"
zip.file("amount.txt").asArrayBuffer() // an ArrayBuffer containing €15 encoded as utf8
zip.file("amount.txt").asUint8Array() // an Uint8Array containing €15 encoded as utf8
// with folders
zip.folder("sub").file("file.txt", "content");
zip.file("sub/file.txt"); // the file
// or
zip.folder("sub").file("file.txt") // the file
```

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---
title: "file(regex)"
layout: default
section: api
---
__Description__ : Search a file in the current folder and subfolders with a
[regular expression](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions).
The regex is tested against the relative filename.
__Arguments__
name | type | description
------|--------|------------
regex | RegExp | the regex to use.
__Returns__ : An array of matching files (an empty array if none matched). Each
maching file is an instance of [ZipObject]({{site.baseurl}}/documentation/api_zipobject.html).
__Throws__ : Nothing.
<!--
__Complexity__ : **O(k)** where k is the number of entries in the current JSZip
instance.
-->
__Example__
```js
var zip = new JSZip();
zip.file("file1.txt", "content");
zip.file("file2.txt", "content");
zip.file(/file/); // array of size 2
// example with a relative path :
var folder = zip.folder("sub");
folder
.file("file3.txt", "content") // relative path from folder : file3.txt
.file("file4.txt", "content"); // relative path from folder : file4.txt
folder.file(/file/); // array of size 2
folder.file(/^file/); // array of size 2, the relative paths start with file
// arrays contain objects in the form:
// {name: "file2.txt", dir: false, asText : function () {...}, ...}
```

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---
title: "filter(predicate)"
layout: default
section: api
---
__Description__ : Filter nested files/folders with the specified function.
__Arguments__
name | type | description
----------|----------|------------
predicate | function | the predicate to use.
The predicate has the following signature : `function (relativePath, file) {...}` :
name | type | description
-------------|-----------|------------
relativePath | string | the filename and its path, reliatively to the current folder.
file | ZipObject | the file being tested. See [ZipObject]({{site.baseurl}}/documentation/api_zipobject.html).
The predicate must return true if the file should be included, false otherwise.
__Returns__ : An array of matching ZipObject.
__Throws__ : Nothing.
<!-- __Complexity__ : **O(k)** where k is the number of entries. -->
__Example__
```js
var zip = new JSZip().folder("dir");
zip.file("readme.txt", "content");
zip.filter(function (relativePath, file){
// relativePath == "readme.txt"
// file = {name:"dir/readme.txt",options:{...},asText:function}
return true/false;
});
```

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---
title: "folder(name)"
layout: default
section: api
---
__Description__ : Create a directory if it doesn't exist, return a new JSZip
object with the new folder as root.
See also [the `dir` option of file()]({{site.baseurl}}/documentation/api_jszip/file_data.html).
__Arguments__
name | type | description
-----|--------|------------
name | string | the name of the directory.
__Returns__ : A new JSZip (for chaining), with the new folder as root.
__Throws__ : Nothing.
<!-- __Complexity__ : **O(1)** -->
__Example__
```js
zip.folder("images");
zip.folder("css").file("style.css", "body {background: #FF0000}");
// or specify an absolute path (using forward slashes)
zip.file("css/font.css", "body {font-family: sans-serif}")
// result : images/, css/, css/style.css, css/font.css
```

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---
title: "folder(regex)"
layout: default
section: api
---
__Description__ : Search a subdirectory in the current directory with a
[regular expression](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions).
The regex is tested against the relative path.
__Arguments__
name | type | description
------|--------|------------
regex | RegExp | the regex to use.
__Returns__ : An array of matching folders (an empty array if none matched).
Each maching folder is an instance of [ZipObject]({{site.baseurl}}/documentation/api_zipobject.html).
__Throws__ : Nothing.
<!--
__Complexity__ : **O(k)** where k is the number of entries in the current JSZip
instance.
-->
__Example__
```js
var zip = new JSZip();
zip.folder("home/Pierre/videos");
zip.folder("home/Pierre/photos");
zip.folder("home/Jean/videos");
zip.folder("home/Jean/photos");
zip.folder(/videos/); // array of size 2
zip.folder("home/Jean").folder(/^vid/); // array of 1
```

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---
title: "generate(options)"
layout: default
section: api
---
__Description__ : Generates the complete zip file.
__Arguments__
name | type | default | description
--------------------|---------|---------|------------
options | object | | the options to generate the zip file :
options.base64 | boolean | false | **deprecated**, use `type` instead. If `type` is not used, set to `false` to get the result as a raw byte string, `true` to encode it as base64.
options.compression | string | `STORE` (no compression) | the default file compression method to use. Available methods are `STORE` and `DEFLATE`. You can also provide your own compression method.
options.compressionOptions | object | `null` | the options to use when compressing the file, see below.
options.type | string | `base64` | The type of zip to return, see below for the other types.
options.comment | string | | The comment to use for the zip file.
options.mimeType | string | `application/zip` | mime-type for the generated file. Useful when you need to generate a file with a different extension, ie: ".ods".
options.platform | string | `DOS` | The platform to use when generating the zip file.
options.encodeFileName | function | encode with UTF-8 | the function to encode the file name / comment.
Possible values for `type` :
* `base64` (default) : the result will be a string, the binary in a base64 form.
* `string` : the result will be a string in "binary" form, using 1 byte per char (2 bytes).
* `uint8array` : the result will be a Uint8Array containing the zip. This requires a compatible browser.
* `arraybuffer` : the result will be a ArrayBuffer containing the zip. This requires a compatible browser.
* `blob` : the result will be a Blob containing the zip. This requires a compatible browser.
* `nodebuffer` : the result will be a nodejs Buffer containing the zip. This requires nodejs.
Note : when using type = "uint8array", "arraybuffer" or "blob", be sure to
check if the browser supports it (you can use [`JSZip.support`]({{site.baseurl}}/documentation/api_jszip/support.html)).
The `compressionOptions` parameter depends on the compression type. With
`STORE` (no compression), this parameter is ignored. With `DEFLATE`, you can
give the compression level with `compressionOptions : {level:6}` (or any level
between 1 (best speed) and 9 (best compression)).
Note : if the entry is *already* compressed (coming from a compressed zip file),
calling `generate()` with a different compression level won't update the entry.
The reason is simple : JSZip doesn't know how compressed the content was and
how to match the compression level with the implementation we use.
Note for the `comment` option : the zip format has no flag or field to give the
encoding of this field and JSZip will use UTF-8. With non ASCII characters you
might get encoding issues if the file archiver doesn't use UTF-8 to decode the
comment.
If not set, JSZip will use the field `comment` on its `options`.
Possible values for `platform` : `DOS` and `UNIX`. It also accepts nodejs
`process.platform` values.
When using `DOS`, the attribute `dosPermissions` of each file is used.
When using `UNIX`, the attribute `unixPermissions` of each file is used.
If you set the platform value on nodejs, be sure to use `process.platform`.
`fs.stats` returns a non executable mode for folders on windows, if you
force the platform to `UNIX` the generated zip file will have a strange
behavior on UNIX platforms.
__About `encodeFileName`__ :
By default, JSZip uses UTF-8 to encode the file names / comments. You can use
this method to force an other encoding. Note : the encoding used is not stored
in a zip file, not using UTF-8 may lead to encoding issues.
The function takes a string and returns a bytes array (Uint8Array or Array).
__Returns__ : The generated zip file.
__Throws__ : An exception if the asked `type` is not available in the browser,
see [JSZip.support]({{site.baseurl}}/documentation/api_jszip/support.html).
<!-- __Complexity__ : TODO : worst case, with/out compression, etc -->
__Example__
```js
var content = zip.generate({type:"blob"});
// see FileSaver.js
saveAs(content, "hello.zip");
```
```js
var content = zip.generate({type:"base64"});
location.href="data:application/zip;base64,"+content;
```
```js
var content = zip.generate({type:"nodebuffer"});
require("fs").writeFile("hello.zip", content, function(err){/*...*/});
```
```js
// on nodejs
zip.file(pathname, content, {
date: stat.mtime,
unixPermissions: stat.mode
});
// ...
zip.generate({
type: 'nodebuffer',
platform: process.platform
});
```
```js
//This example will Generate a Open Document Spreasheet, with the correct mime type
var zip = new JSZip();
zip.file("mimetype", "application/vnd.oasis.opendocument.spreadsheet");
var conf2 = zip.folder("Configurations2");
conf2.folder("acceleator");
conf2.folder("images");
conf2.folder("popupmenu");
conf2.folder("statusbar");
conf2.folder("floater");
conf2.folder("menubar");
conf2.folder("progressbar");
conf2.folder("toolbar");
var manifest = "<..."; //xml containing manifest.xml
var styles = "<..."; //xml containing styles.xml
var settings = "<..."; //xml containing settings.xml
var meta = "<..."; //xml containing meta.xml
var content = "<..."; //xml containing content.xml
var metaInf = zip.folder("META-INF");
metaInf.file("manifest.xml", manifest);
zip.file("styles.xml", styles);
zip.file("settings.xml", settings);
zip.file("meta.xml", meta);
zip.file("content.xml", content);
//Generate the file
var odsFile = zip.generate({type: "blob", mimeType: "application/ods", compression: "DEFLATE"});
var url = window.URL.createObjectURL(odsFile);
var link = document.getElementById("link"); //I suppose you'll have a link with this id :)
link.download = "testjs.ods";
link.href = url;
```
Using a custom charset :
```js
// using iconv-lite for example
var iconv = require('iconv-lite');
zip.generate({
type: 'uint8array',
encodeFileName: function (string) {
return iconv.encode(string, 'your-encoding');
}
});
```

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---
title: "load(data [, options])"
layout: default
section: api
---
__Description__ : Read an existing zip and merge the data in the current JSZip
object at the current folder level. This technique has some limitations, see
[here]({{site.baseurl}}/documentation/limitations.html).
__Arguments__
name | type | description
-------------------|--------|------------
data | String/Array of bytes/ArrayBuffer/Uint8Array/Buffer | the zip file
options | object | the options to load the zip file
Content of `options` :
name | type | default | description
------------------------------|---------|---------|------------
options.base64 | boolean | false | set to `true` if the data is base64 encoded, `false` for binary.
options.checkCRC32 | boolean | false | set to `true` if the read data should be checked against its CRC32.
options.optimizedBinaryString | boolean | false | set to true if (and only if) the input is a string and has already been prepared with a 0xFF mask.
options.createFolders | boolean | false | set to true to create folders in the file path automatically. Leaving it false will result in only virtual folders (i.e. folders that merely represent part of the file path) being created.
options.decodeFileName | function | decode from UTF-8 | the function to decode the file name / comment.
You shouldn't update the data given to this method : it is kept as it so any
update will impact the stored data.
Zip features supported by this method :
* Compression (<code>DEFLATE</code> supported)
* zip with data descriptor
* ZIP64
* UTF8 in file name, UTF8 in file content
Zip features not (yet) supported :
* password protected zip
* multi-volume zip
__About `decodeFileName`__ :
A zip file has a flag to say if the filename and comment are encoded with UTF-8.
If it's not set, JSZip has **no way** to know the encoding used. It usually
is the default encoding of the operating system.
The function takes the bytes array (Uint8Array or Array) and returns the
decoded string.
__Returns__ : The current JSZip object.
__Throws__ : An exception if the loaded data is not valid zip data or if it
uses features (multi volume, password protected, etc).
<!--
__Complexity__ : for k the number of entries in the zip file and n the length
of the data :
The default use case is **O(k)**.
If the data is in base64, we must first decode it : **O(k + n)**.
If the data is a string not in base64 and optimizedBinaryString is false, we
must apply the 0xFF mask : **O(k + n)**.
If checkCRC32 is true, it **adds** to the above complexity **O(n)** and the
complexity of the decompression algorithm.
-->
__Example__
```js
var zip = new JSZip();
zip.load(zipDataFromXHR);
```
```js
require("fs").readFile("hello.zip", function (err, data) {
if (err) throw err;
var zip = new JSZip();
zip.load(data);
}
```
Using sub folders :
```js
var zip = new JSZip();
zip.folder("subfolder").load(data);
// the content of data will be loaded in subfolder/
```
Using a custom charset :
```js
// using iconv-lite for example
var iconv = require('iconv-lite');
zip.load(content, {
decodeFileName: function (bytes) {
return iconv.decode(bytes, 'your-encoding');
}
});
```

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---
title: "remove(name)"
layout: default
section: api
---
__Description__ : Delete a file or folder (recursively).
__Arguments__
name | type | description
-----|--------|------------
name | string | the name of the file/folder to delete.
__Returns__ : The current JSZip object.
__Throws__ : Nothing.
<!--
__Complexity__ : **O(k)** where k is the number of entry to delete (may be > 1
when removing a folder).
-->
__Example__
```js
var zip = new JSZip();
zip.file("Hello.txt", "Hello World\n");
zip.file("temp.txt", "nothing").remove("temp.txt");
// result : Hello.txt
zip.folder("css").file("style.css", "body {background: #FF0000}");
zip.remove("css");
//result : empty zip
```

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---
title: "JSZip.support"
layout: default
section: api
---
If the browser supports them, JSZip can take advantage of some "new" features :
ArrayBuffer, Blob, Uint8Array. To know if JSZip can use them, you can check the
JSZip.support object. It contains the following boolean properties :
* `arraybuffer` : true if JSZip can read and generate ArrayBuffer, false otherwise.
* `uint8array` : true if JSZip can read and generate Uint8Array, false otherwise.
* `blob` : true if JSZip can generate Blob, false otherwise.
* `nodebuffer` : true if JSZip can read and generate nodejs Buffer, false otherwise.

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---
title: "ZipObject API"
layout: default
section: api
---
This represents an entry in the zip file. If the entry comes from an existing
archive previously [loaded]({{site.baseurl}}/documentation/api_jszip/load.html), the content
will be automatically decompressed/converted first.
### Attributes
attribute name | type | description
----------------------------|-------------|-------------
`name` | string | the absolute path of the file
`dir` | boolean | true if this is a directory
`date` | date | the last modification date
`comment` | string | the comment for this file
`unixPermissions` | 16 bits number | The UNIX permissions of the file, if any.
`dosPermissions` | 6 bits number | The DOS permissions of the file, if any.
`options` | object | the options of the file. The available options are :
`options.base64` | boolean | **Deprecated**, see [file(name, data [,options])]({{site.baseurl}}/documentation/api_jszip/file_data.html)
`options.binary` | boolean | **Deprecated**, see [file(name, data [,options])]({{site.baseurl}}/documentation/api_jszip/file_data.html)
`options.dir` | boolean | **Deprecated**, use `dir`. True if this is a directory
`options.date` | date | **Deprecated**, use `date`. See [file(name, data [,options])]({{site.baseurl}}/documentation/api_jszip/file_data.html)
`options.compression` | compression | see [file(name, data [,options])]({{site.baseurl}}/documentation/api_jszip/file_data.html)
### Getters
method | return type | description
------------------|---------------|-------------
`asText()` | string | the content as an unicode string.
`asBinary()` | string | the content as binary string.
`asArrayBuffer()` | ArrayBuffer | need a [compatible browser]({{site.baseurl}}/documentation/api_jszip/support.html).
`asUint8Array()` | Uint8Array | need a [compatible browser]({{site.baseurl}}/documentation/api_jszip/support.html).
`asNodeBuffer()` | nodejs Buffer | need [nodejs]({{site.baseurl}}/documentation/api_jszip/support.html).

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---
title: Contributing
layout: default
section: main
---
### Download the sources
You should create a [Github](https://github.com/) account and
[fork the repository](https://help.github.com/articles/fork-a-repo) (you will
need one to create the pull request).
If you just want the get the source code, you can use git and do
`git clone https://github.com/Stuk/jszip.git` to get the sources. You can also
download the latest sources [here](https://github.com/Stuk/jszip/archive/master.zip).
### Building the project
#### Code
The dependencies are handled by npm, the first step is to run
`npm install` to get the dependencies.
JSZip uses Grunt to handle the build, [see here to install its CLI](http://gruntjs.com/getting-started).
Here are the interesting build commands :
* `grunt` will generate the final js file in dist/ and the minified version.
* `npm run test-node` will run the tests in nodejs.
* `npm run test-browser` will the tests in some browsers using SauceLabs, see
below.
* `npm run test` will run the tests in nodejs and in the browser.
* `npm run lint` will use jshint the check the source code.
#### Documentation
The documentation uses jekyll on gh-pages. To render the documentation, you
need to [install jekyll](http://jekyllrb.com/docs/installation/) and then run
`jekyll serve --baseurl ''`.
### Testing the project
To test JSZip in nodejs, use `npm run test-node`.
To test JSZip in a browser, you can open the file `test/index.html` in the
browser you want to test. Don't forget to update the dist/ files with `grunt`.
You can also test JSZip in a lot of browsers at once with
[SauceLabs](https://saucelabs.com/). You will need a SauceLabs account and two
variables into your environment. On linux, just use
```bash
export SAUCE_USERNAME=your-saucelabs-username
export SAUCE_ACCESS_KEY=your-saucelabs-access-key
```
before running the `npm run test-browser` command.
### Merging the changes
If you have tested bug fixes or new features, you can open a
[pull request](https://help.github.com/articles/using-pull-requests) on Github.

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ul.nav ul {
list-style:none;
margin: 0;
padding: 0 0 0 25px;
}
#downloader_application form {
margin-bottom: 10px;
}
#downloader_application ul {
list-style-type: none;
}
.browser_support th {
border-bottom-width: 3px !important;
}
.support_ie {border-bottom-color: #0275BA !important;}
.support_ff {border-bottom-color: #DF7215 !important;}
.support_sf {border-bottom-color: #43B3E9 !important;}
.support_cr {border-bottom-color: #39B642 !important;}
.support_op {border-bottom-color: #C42122 !important;}
.support_nd {border-bottom-color: #8CC84B !important;}

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/* Generated with :
* pygmentize -S default -f html > pygments.css
*/
.hll { background-color: #ffffcc }
.c { color: #408080; font-style: italic } /* Comment */
.err { border: 1px solid #FF0000 } /* Error */
.k { color: #008000; font-weight: bold } /* Keyword */
.o { color: #666666 } /* Operator */
.cm { color: #408080; font-style: italic } /* Comment.Multiline */
.cp { color: #BC7A00 } /* Comment.Preproc */
.c1 { color: #408080; font-style: italic } /* Comment.Single */
.cs { color: #408080; font-style: italic } /* Comment.Special */
.gd { color: #A00000 } /* Generic.Deleted */
.ge { font-style: italic } /* Generic.Emph */
.gr { color: #FF0000 } /* Generic.Error */
.gh { color: #000080; font-weight: bold } /* Generic.Heading */
.gi { color: #00A000 } /* Generic.Inserted */
.go { color: #888888 } /* Generic.Output */
.gp { color: #000080; font-weight: bold } /* Generic.Prompt */
.gs { font-weight: bold } /* Generic.Strong */
.gu { color: #800080; font-weight: bold } /* Generic.Subheading */
.gt { color: #0044DD } /* Generic.Traceback */
.kc { color: #008000; font-weight: bold } /* Keyword.Constant */
.kd { color: #008000; font-weight: bold } /* Keyword.Declaration */
.kn { color: #008000; font-weight: bold } /* Keyword.Namespace */
.kp { color: #008000 } /* Keyword.Pseudo */
.kr { color: #008000; font-weight: bold } /* Keyword.Reserved */
.kt { color: #B00040 } /* Keyword.Type */
.m { color: #666666 } /* Literal.Number */
.s { color: #BA2121 } /* Literal.String */
.na { color: #7D9029 } /* Name.Attribute */
.nb { color: #008000 } /* Name.Builtin */
.nc { color: #0000FF; font-weight: bold } /* Name.Class */
.no { color: #880000 } /* Name.Constant */
.nd { color: #AA22FF } /* Name.Decorator */
.ni { color: #999999; font-weight: bold } /* Name.Entity */
.ne { color: #D2413A; font-weight: bold } /* Name.Exception */
.nf { color: #0000FF } /* Name.Function */
.nl { color: #A0A000 } /* Name.Label */
.nn { color: #0000FF; font-weight: bold } /* Name.Namespace */
.nt { color: #008000; font-weight: bold } /* Name.Tag */
.nv { color: #19177C } /* Name.Variable */
.ow { color: #AA22FF; font-weight: bold } /* Operator.Word */
.w { color: #bbbbbb } /* Text.Whitespace */
.mf { color: #666666 } /* Literal.Number.Float */
.mh { color: #666666 } /* Literal.Number.Hex */
.mi { color: #666666 } /* Literal.Number.Integer */
.mo { color: #666666 } /* Literal.Number.Oct */
.sb { color: #BA2121 } /* Literal.String.Backtick */
.sc { color: #BA2121 } /* Literal.String.Char */
.sd { color: #BA2121; font-style: italic } /* Literal.String.Doc */
.s2 { color: #BA2121 } /* Literal.String.Double */
.se { color: #BB6622; font-weight: bold } /* Literal.String.Escape */
.sh { color: #BA2121 } /* Literal.String.Heredoc */
.si { color: #BB6688; font-weight: bold } /* Literal.String.Interpol */
.sx { color: #008000 } /* Literal.String.Other */
.sr { color: #BB6688 } /* Literal.String.Regex */
.s1 { color: #BA2121 } /* Literal.String.Single */
.ss { color: #19177C } /* Literal.String.Symbol */
.bp { color: #008000 } /* Name.Builtin.Pseudo */
.vc { color: #19177C } /* Name.Variable.Class */
.vg { color: #19177C } /* Name.Variable.Global */
.vi { color: #19177C } /* Name.Variable.Instance */
.il { color: #666666 } /* Literal.Number.Integer.Long */

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---
title: "How to use JSZip"
layout: default
section: example
---
An instance of JSZip represents a set of files. You can add them, remove them,
modify them. You can also import an existing zip file or generate one.
### Getting the object
#### In a browser
For a browser, there are two interesting files : `dist/jszip.js` and
`dist/jszip.min.js` (include just one).
If you use an AMD loader (RequireJS for example) JSZip will register itself :
you just have to put the js file at the right place, or configure the loader
(see [here for RequireJS](http://requirejs.org/docs/api.html#config-paths)).
Without any loader, JSZip will declare in the global scope a variable named `JSZip`.
#### In nodejs
In nodejs, you can `require` it :
```js
var JSZip = require("jszip");
```
### Basic manipulations
The first step is to create an instance of JSZip :
```js
var zip = new JSZip();
```
On this instance, we can add (and update) files and folders with
`.file(name, content)` and `.folder(name)`.
They return the current JSZip instance so you can chain the calls.
```js
// create a file
zip.file("hello.txt", "Hello[p my)6cxsw2q");
// oops, cat on keyboard. Fixing !
zip.file("hello.txt", "Hello World\n");
// create a file and a folder
zip.file("nested/hello.txt", "Hello World\n");
// same as
zip.folder("nested").file("hello.txt", "Hello World\n");
```
With `.folder(name)`, the returned object has a different root : if you add files
on this object, you will put them in the created subfolder. This is just a
view, the added files will also be in the "root" object.
```js
var photoZip = zip.folder("photos");
// this call will create photos/README
photoZip.file("README", "a folder with photos");
```
You can access the file content with `.file(name)` and
[its getters]({{site.baseurl}}/documentation/api_zipobject.html) :
```js
zip.file("hello.txt").asText(); // "Hello World\n"
if (JSZip.support.uint8array) {
zip.file("hello.txt").asUint8Array(); // Uint8Array { 0=72, 1=101, 2=108, more...}
}
```
You can also remove files or folders with `.remove(name)` :
```js
zip.remove("photos/README");
zip.remove("photos");
// same as
zip.remove("photos"); // by removing the folder, you also remove its content.
```
### Generate a zip file
With `.generate(options)` you can generate a zip file (not a real file but its
representation in memory). Check
[this page]({{site.baseurl}}/documentation/howto/write_zip.html) for more
informations on how to write / give the file to the user.
```js
var content = null;
if (JSZip.support.uint8array) {
content = zip.generate({type : "uint8array"});
} else {
content = zip.generate({type : "string"});
}
```
### Read a zip file
With `.load(data)` you can load a zip file. Check
[this page]({{site.baseurl}}/documentation/howto/read_zip.html) to see how to
do properly (it's more tricky that it seems).
```js
var new_zip = new JSZip();
// more files !
new_zip.load(content);
// you now have every files contained in the loaded zip
new_zip.file("hello.txt").asText(); // "Hello World\n"
```

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---
title: "Download the generated zip file"
layout: default
section: example
---
<p>Tip : check the source of the page !</p>
<h2>The FileSaver API</h2>
<div>
Works on firefox, chrome , opera &gt;= 15 and IE &gt;= 10 (but NOT in compatibility view).<br/>
<button id="blob" class="btn btn-primary">click to download</button>
</div>
<h2>The data URL</h2>
<div>
Does not work in IE, has restrictions on the length.<br/>
<button id="data_uri" class="btn btn-primary">click to download</button>
</div>
<script type="text/javascript">
(function () {
var zip = new JSZip();
zip.file("Hello.txt", "Hello world\n");
function bindEvent(el, eventName, eventHandler) {
if (el.addEventListener){
// standard way
el.addEventListener(eventName, eventHandler, false);
} else if (el.attachEvent){
// old IE
el.attachEvent('on'+eventName, eventHandler);
}
}
// Blob
var blobLink = document.getElementById('blob');
if (JSZip.support.blob) {
function downloadWithBlob() {
try {
var blob = zip.generate({type:"blob"});
// see FileSaver.js
saveAs(blob, "hello.zip");
} catch(e) {
blobLink.innerHTML += " " + e;
}
return false;
}
bindEvent(blobLink, 'click', downloadWithBlob);
} else {
blobLink.innerHTML += " (not supported on this browser)";
}
// data URI
function downloadWithDataURI() {
window.location = "data:application/zip;base64," + zip.generate({type:"base64"});
}
var dataUriLink = document.getElementById('data_uri');
bindEvent(dataUriLink, 'click', downloadWithDataURI);
})();
</script>

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---
title: "Mini app : Downloader"
layout: default
section: example
---
<p>Tip : check the source of the page !</p>
<p>
This mini application let you choose the files you want in a list, download
them, zip them and give the result to the user.
</p>
<p>
This demo requires a recent browser, see <a href="{{site.baseurl}}/documentation/howto/write_zip.html">
the howto</a>.
</p>
<div id="downloader_application">
<h3>Please select your files</h3>
<form action="#" id="download_form">
<ul>
<li>
<label>
<input type="checkbox" data-url="{{site.baseurl}}/test/ref/complex_files/Franz Kafka - The Metamorphosis.epub" checked />
Franz Kafka - The Metamorphosis.epub
</label>
</li>
<li>
<label>
<input type="checkbox" data-url="{{site.baseurl}}/documentation/css/pygments.css" checked />
pygments.css
</label>
</li>
<li>
<label>
<input type="checkbox" data-url="{{site.baseurl}}/dist/jszip.js" />
jszip.js
</label>
</li>
<li>
<label>
<input type="checkbox" data-url="{{site.baseurl}}/test/ref/all.zip" />
all.zip
</label>
</li>
</ul>
<button type="submit" class="btn btn-primary">pack them !</button>
</form>
<p class="hide" id="result"></p>
</div>
<script type="text/javascript" src="{{site.baseurl}}/documentation/examples/downloader.js"></script>

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jQuery(function ($) {
"use strict";
/**
* Reset the message.
*/
function resetMessage () {
$("#result")
.removeClass()
.text("");
}
/**
* show a successful message.
* @param {String} text the text to show.
*/
function showMessage(text) {
resetMessage();
$("#result")
.addClass("alert alert-success")
.text(text);
}
/**
* show an error message.
* @param {String} text the text to show.
*/
function showError(text) {
resetMessage();
$("#result")
.addClass("alert alert-danger")
.text(text);
}
/**
* Fetch the content, add it to the JSZip object
* and use a jQuery deferred to hold the result.
* @param {String} url the url of the content to fetch.
* @param {String} filename the filename to use in the JSZip object.
* @param {JSZip} zip the JSZip instance.
* @return {jQuery.Deferred} the deferred containing the data.
*/
function deferredAddZip(url, filename, zip) {
var deferred = $.Deferred();
JSZipUtils.getBinaryContent(url, function (err, data) {
if(err) {
deferred.reject(err);
} else {
zip.file(filename, data, {binary:true});
deferred.resolve(data);
}
});
return deferred;
}
if(!JSZip.support.blob) {
showError("This demo works only with a recent browser !");
return;
}
var $form = $("#download_form").on("submit", function () {
resetMessage();
var zip = new JSZip();
var deferreds = [];
// find every checked item
$(this).find(":checked").each(function () {
var $this = $(this);
var url = $this.data("url");
var filename = url.replace(/.*\//g, "");
deferreds.push(deferredAddZip(url, filename, zip));
});
// when everything has been downloaded, we can trigger the dl
$.when.apply($, deferreds).done(function () {
var blob = zip.generate({type:"blob"});
// see FileSaver.js
saveAs(blob, "example.zip");
showMessage("done !");
}).fail(function (err) {
showError(err);
});
return false;
});
});
// vim: set shiftwidth=4 softtabstop=4:

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---
title: "Get a file with an ajax call"
layout: default
section: example
---
<p>Tip : check the source of the page !</p>
<h3>With JSZipUtils</h3>
<div id="jszip_utils"></div>
<script type="text/javascript">
(function () {
function showError(elt, err) {
elt.innerHTML = "<p class='alert alert-danger'>" + err + "</p>";
}
function showContent(elt, type, content) {
elt.innerHTML = "<p class='alert alert-success'>loaded ! (as a " + type + ")<br/>" +
"Content = " + content + "</p>";
}
//=========================
// JSZipUtils
//=========================
JSZipUtils.getBinaryContent('{{site.baseurl}}/test/ref/text.zip', function(err, data) {
var elt = document.getElementById('jszip_utils');
if(err) {
showError(elt, err);
return;
}
try {
var zip = new JSZip(data);
showContent(elt, "" + data, zip.file("Hello.txt").asText());
} catch(e) {
showError(elt, e);
}
});
})();
</script>

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---
title: "Reading a local file with the File API"
layout: default
section: example
---
<h3>Choose the local(s) zip file(s)</h3>
<p class="note">Note : your browser will process the zip file, don't choose a file too big !</p>
<input type="file" id="file" name="file" multiple /><br />
<div id="error_block" class="alert alert-danger hidden">
You will need a recent browser to use this demo :(
</div>
<div id="result_block" class="hidden">
<h3>Content :</h3>
<div id="result"></div>
</div>
<script type="text/javascript" src="{{site.baseurl}}/test/jquery-1.8.3.min.js"></script>
<script type="text/javascript">
(function () {
if (!window.FileReader || !window.ArrayBuffer) {
$("#error_block").removeClass("hidden").addClass("show");
return;
}
var $result = $("#result");
$("#file").on("change", function(evt) {
// remove content
$result.html("");
// be sure to show the results
$("#result_block").removeClass("hidden").addClass("show");
// see http://www.html5rocks.com/en/tutorials/file/dndfiles/
var files = evt.target.files;
for (var i = 0, f; f = files[i]; i++) {
var reader = new FileReader();
// Closure to capture the file information.
reader.onload = (function(theFile) {
return function(e) {
var $title = $("<h4>", {
text : theFile.name
});
$result.append($title);
var $fileContent = $("<ul>");
try {
var dateBefore = new Date();
// read the content of the file with JSZip
var zip = new JSZip(e.target.result);
var dateAfter = new Date();
$title.append($("<span>", {
text:" (parsed in " + (dateAfter - dateBefore) + "ms)"
}));
// that, or a good ol' for(var entryName in zip.files)
$.each(zip.files, function (index, zipEntry) {
$fileContent.append($("<li>", {
text : zipEntry.name
}));
// the content is here : zipEntry.asText()
});
// end of the magic !
} catch(e) {
$fileContent = $("<div>", {
"class" : "alert alert-danger",
text : "Error reading " + theFile.name + " : " + e.message
});
}
$result.append($fileContent);
}
})(f);
// read the file !
// readAsArrayBuffer and readAsBinaryString both produce valid content for JSZip.
reader.readAsArrayBuffer(f);
// reader.readAsBinaryString(f);
}
});
})();
</script>

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---
title: "Frequently Asked Questions"
layout: default
section: main
---
### "Corrupted zip or bug : unexpected signature"
If you are sure that the zip file is correct, that error often comes from a
corrupted content. An ajax request, if not prepared correctly, will try to
decode the binary content as a text and corrupt it. See
[this page]({{site.baseurl}}/documentation/howto/read_zip.html).
### My browser crashes / becomes unresponsive / never finish the execution
That happens if you try to handle to much data. If possible, try again with a
small (some KB) zip file to see if your code is correct. See
[this page]({{site.baseurl}}/documentation/limitations.html) for more
informations.

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---
title: "How to read a file"
layout: default
section: example
---
This page explains how to read an existing zip file or add a existing file into
the zip file.
### In the browser
#### AJAX request
Getting binary data with an ajax request is hard (mainly because of IE <= 9).
The easy way is to use [JSZipUtils.getBinaryContent](https://github.com/stuk/jszip-utils).
With JSZipUtils.getBinaryContent, you can do the following (see the
documentation for more examples) :
```js
JSZipUtils.getBinaryContent('path/to/content.zip', function(err, data) {
if(err) {
throw err; // or handle err
}
var zip = new JSZip(data);
});
```
<br>
If you need to adapt an existing solution to what getBinaryContent does, here
are the details. When doing a XHR request (level 1, without setting the
`responseType`) the browser will try to interpret the response as a string and
decode it from its charset. To avoid this on Firefox/Chrome/Opera, you need to
set mime type : `xhr.overrideMimeType("text/plain; charset=x-user-defined");`.
On IE <= 9, this is harder. The overrideMimeType trick doesn't work so we need
to use [vbscript](http://stackoverflow.com/questions/1095102/how-do-i-load-binary-image-data-using-javascript-and-xmlhttprequest)
and non standard attributes.
On IE > 9, overrideMimeType doesn't work but xhr2 does.
With [xhr 2](http://caniuse.com/xhr2), you can just set the responseType
attribute : `xhr.responseType = "arraybuffer";`. With this, the browser will
return an ArrayBuffer.
#### Local files
If the browser supports the [FileReader API](http://caniuse.com/filereader),
you can use it to read a zip file. JSZip can read ArrayBuffer, so you can use
`FileReader.readAsArrayBuffer(Blob)`, see this [example]({{site.baseurl}}/documentation/examples/read-local-file-api.html).
### In nodejs
JSZip can read Buffers so you can do the following :
#### Local file
```js
"use strict";
var fs = require("fs");
var JSZip = require("jszip");
// read a zip file
fs.readFile("test.zip", function(err, data) {
if (err) throw err;
var zip = new JSZip(data);
});
// read a file and add it to a zip
fs.readFile("picture.png", function(err, data) {
if (err) throw err;
var zip = new JSZip();
zip.file("picture.png", data);
});
```
#### Remote file
There are a lot of nodejs libraries doing http requests, from the built-in
[http](http://nodejs.org/docs/latest/api/http.html) to the
[npm packages](https://www.npmjs.org/browse/keyword/http). Here are two
examples, one with the default http API, the other with
[request](https://github.com/mikeal/request) (but you're free to use your
favorite library !). If possible, download the file as a Buffer (you will get
better performances). If it's not possible, you can fallback to a binary string
(the option is likely to be `encoding : "binary"`).
##### With http :
```js
"use strict";
var http = require("http");
var url = require("url");
var JSZip = require("jszip");
var req = http.get(url.parse("http://localhost/.../file.zip"), function (res) {
if (res.statusCode !== 200) {
console.log(res.statusCode);
// handle error
return;
}
var data = [], dataLen = 0;
// don't set the encoding, it will break everything !
// or, if you must, set it to null. In that case the chunk will be a string.
res.on("data", function (chunk) {
data.push(chunk);
dataLen += chunk.length;
});
res.on("end", function () {
var buf = new Buffer(dataLen);
for (var i=0,len=data.length,pos=0; i<len; i++) {
data[i].copy(buf, pos);
pos += data[i].length;
}
// here we go !
var zip = new JSZip(buf);
console.log(zip.file("content.txt").asText());
});
});
req.on("error", function(err){
// handle error
});
```
##### With request :
```js
"use strict";
var request = require('request');
var JSZip = require("jszip");
request({
method : "GET",
url : "http://localhost/.../file.zip",
encoding: null // <- this one is important !
}, function (error, response, body) {
if(error || response.statusCode !== 200) {
// handle error
return;
}
var zip = new JSZip(body);
console.log(zip.file("content.txt").asText());
});
```

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---
title: "How to write a file / give it to the user"
layout: default
section: example
---
### In the browser
With only javascript, this part won't work in old browsers, including IE < 10.
For those browsers, you can use a flash polyfill, see below.
You can also see this
[example]({{site.baseurl}}/documentation/examples/download-zip-file.html).
#### Blob URL / FileSaver
With recent browsers, the easiest way is to use `saveAs` or a polyfill, see
[FileSaver.js](https://github.com/eligrey/FileSaver.js) :
```js
var blob = zip.generate({type:"blob"});
saveAs(blob, "hello.zip");
```
Under the hood, the polyfill uses the native `saveAs` from the
[FileSaver](http://www.w3.org/TR/file-writer-api/#the-filesaver-interface) API
(on Chrome and IE10+) or use a [Blob URL](http://updates.html5rocks.com/2011/08/Downloading-resources-in-HTML5-a-download)
(on Firefox).
#### Data URI
For older browsers that support [data URI](http://caniuse.com/datauri), you can also
do the following :
```js
location.href="data:application/zip;base64," + zip.generate({type:"base64"});
```
The biggest issue here is that the filenames are very awkward, Firefox
generates filenames such as `a5sZQRsx.zip.part` (see bugs
[367231](https://bugzilla.mozilla.org/show_bug.cgi?id=367231) and
[532230](https://bugzilla.mozilla.org/show_bug.cgi?id=532230), and Safari
isn't much better with just `Unknown`.
Browser support and resulting filename :
Opera | Firefox | Safari | Chrome | Internet Explorer
-------|---------|--------|--------|------------------
"default.zip" | random alphanumeric with ".part" extension | "Unknown" (no extension) | "download.zip" on OSX and Linux, just "download" on Windows | No
#### Downloadify
[Downloadify](https://github.com/dcneiner/downloadify) uses a small Flash SWF
to download files to a user's computer with a filename that you can choose.
Doug Neiner has added the `dataType` option to allow you to pass a zip for
downloading. Follow the [Downloadify demo](http://pixelgraphics.us/downloadify/test.html)
with the following changes:
```js
zip = new JSZip();
zip.file("Hello.", "hello.txt");
Downloadify.create('downloadify',{
...
data: function(){
return zip.generate({type:"base64"});
},
...
dataType: 'base64'
});
```
<!--
TODO : send data as GET / POST ?
-->
#### Deprecated google gears
[Franz Buchinger](http://www.picurl.org/blog/author/franz/) has written a
brilliant tutorial on [using JSZip with Google Gears](http://www.picurl.org/blog/2009/11/22/creating-zip-archives-with-gears)
([part 2](http://www.picurl.org/blog/2009/11/29/gearszipper-part2-adding-support-for-real-files-and-canvas-elements/)).
If you want to let your Gears users download several files at once I really
recommend having a look at some of his [examples](http://picurl.org/gears/zipper/).
### In nodejs
JSZip can generate Buffers so you can do the following :
```js
var fs = require("fs");
var JSZip = require("jszip");
var zip = new JSZip();
// zip.file("file", content);
// ... and other manipulations
var buffer = zip.generate({type:"nodebuffer"});
fs.writeFile("test.zip", buffer, function(err) {
if (err) throw err;
});
```

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---
title: "Limitations of JSZip"
layout: default
section: limitations
fullpage: true
---
### Not supported features
All the features of zip files are not supported. Classic zip files will work
but encrypted zip, multi-volume, etc are not supported and the load() method
will throw an `Error`.
### ZIP64 and 32bit integers
ZIP64 files can be loaded, but only if the zip file is not "too big". ZIP64 uses 64bits integers
but Javascript represents all numbers as
[64-bit double precision IEEE 754 floating point numbers](http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf)
(see section 8.5). So, we have 53bits for integers and
[bitwise operations treat everything as 32bits](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Bitwise_Operators).
So if all the 64bits integers can fit into 32 bits integers, everything will be
fine. If it's not the case, you will have other problems anyway (see next
limitation).
### Performance issues
An other limitation comes from the browser (and the machine running the
browser). A compressed zip file of 10MB is "easily" opened by firefox / chrome
/ opera / IE10+ but will crash older IE. Also keep in mind that strings in
javascript are encoded in UTF-16 : a 10MB ascii text file will take 20MB of
memory.
If you're having performance issues, please consider the following :
* Don't use IE &lt;= 9. Everything is better with typed arrays.
* Use typed arrays (Uint8Array, ArrayBuffer, etc) if possible :
* If you generate a zip file, you should use `type:"uint8array"`
(or blob, arraybuffer, nodebuffer).
* If you load the file from an ajax call, ask your XHR an ArrayBuffer.
Loading a string is asking for troubles.
* Don't use compression (see below).
* If you want to get the content of an ASCII file as a string, consider using
`asBinary()` instead of `asText()`. The transformation
"binary string" -&gt; "unicode string" is a consuming process.
Note about compression :
When reading a file, JSZip will store the content without decompressing it.
When generating a compressed file, JSZip will reuse if possible compressed
content :
* If you read a zip file compressed with DEFLATE and call `generate` with the
DEFLATE compression, JSZip won't call the compression algorithms (same with
STORE everywhere.)
* If you read a zip file compressed with DEFLATE and call `generate` with the
STORE compression, JSZip will have to decompress everything.
On IE &lt;=9, typed arrays are not supported and the compression algorithm
will fallback on arrays. In that case, JSZip needs to convert the binary string
into an array, DEFLATE it and convert the result into a binary string.
You don't want that to happen.
### The output zip will differ from the input zip
Reading and generating a zip file won't give you back the same file.
Some data are discarded (file metadata) and other are added (subfolders).
### Encodings support
JSZip only supports UTF-8 natively. A zip file doesn't contain the name of the
encoding used, you need to know it before doing anything.
#### File name
If the name of a file inside the zip is encoded with UTF-8 then JSZip can
detect it (Language encoding flag, Unicode Path Extra Field). If not, JSZip
can't detect the encoding used and will generate [Mojibake](https://en.wikipedia.org/wiki/Mojibake).
You can use the [encodeFileName]({{site.baseurl}}/documentation/api_jszip/generate.html)
option and the [decodeFileName]({{site.baseurl}}/documentation/api_jszip/load.html)
option to encode/decode using a custom encoding.
#### File content
The `asText()` method uses UTF-8 to decode the content. If you have a text in
a different encoding, you can get the bytes array with `asUint8Array()` and
decode it with a lib (iconv, iconv-lite, etc) on your side.
To save a text using a non-UTF-8 encoding, do the same : encode it into a
Uint8Array before adding it to JSZip.

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---
title: Upgrade Guide
layout: default
section: main
---
### From 2.2.2 to 2.3.0
* On `ZipObject#options`, the attributes `date` and `dir` have been
deprecated and are now on `ZipObject`.
* On `ZipObject#options`, the attributes `base64` and `binary` have been
deprecated.
* `JSZip.base64`, `JSZip.prototype.crc32`, `JSZip.prototype.utf8decode`,
`JSZip.prototype.utf8encode` and `JSZip.utils` have been deprecated.
```js
// deprecated
zip.file("test.txt").options.date
zip.file("test.txt").options.dir
// new API
zip.file("test.txt").date
zip.file("test.txt").dir
```
### From 2.0.0 to 2.1.0
* The packaging changed : instead of loading jszip.js, jszip-load.js,
jszip-inflate.js, jszip-deflate.js, just include dist/jszip.js or
dist/jszip.min.js.
For AMD loader users : JSZip now registers itself. You just have to put the
file at the right place or configure your loader.
### From 1.x to 2.x
* `JSZipBase64` has been renamed to `JSZip.base64`.
* The `data` attribute doesn't exist anymore :
use the getters `asText()`, `asBinary()`, etc
* The compression/decompression methods now give their input type with the
`compressInputType` and `uncompressInputType` attributes.
Example for the data attribute :
```js
// before
zip.file("test.txt").data;
zip.files["test.txt"].data;
zip.file("image.png").data;
zip.files["image.png"].data;
// after
zip.file("test.txt").asText();
zip.files["test.txt"].asText();
zip.file("image.png").asBinary();
zip.files["image.png"].asBinary();
```

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---
title: JSZip
layout: default
section: main
---
<div class="row">
<div class="col-md-5">
JSZip is a javascript library for creating, reading and editing .zip files, with a
lovely and simple API.
</div>
<div class="col-md-7">
<p>
<strong>Current version</strong> : v2.6.0
</p>
<p>
<strong>License</strong> : JSZip is dual-licensed. You may use it under the
MIT license <em>or</em> the GPLv3 license. See
<a href="https://github.com/Stuk/jszip/blob/master/LICENSE.markdown">LICENSE.markdown</a>.
</p>
</div>
<div class="row">
<div class="col-md-5">
<h3>Example</h3>
<script type="text/javascript">
imgData = "R0lGODdhBQAFAIACAAAAAP/eACwAAAAABQAFAAACCIwPkWerClIBADs=";
jQuery(function($) {
if(!JSZip.support.blob) {
$("#demo-not-supported").removeClass("hidden");
$("#demo").hide();
return;
}
$("#demo").click(function () {
try {
eval($("#demo-code").val());
$("#status")
.removeClass()
.addClass("text-success")
.text("Done!");
}
catch (e) {
$("#status")
.removeClass()
.addClass("text-danger")
.text(e);
}
});
});
</script>
<textarea class="form-control" id="demo-code" rows="7" spellcheck="false">
var zip = new JSZip();
zip.file("Hello.txt", "Hello World\n");
var img = zip.folder("images");
img.file("smile.gif", imgData, {base64: true});
var content = zip.generate({type:"blob"});
// see FileSaver.js
saveAs(content, "example.zip");</textarea>
<button id="demo" class="btn btn-primary">Run!</button>
<span id="status"></span>
<div id="demo-not-supported" class="alert alert-danger hidden">
This browser doesn't support blobs, this demo won't work :(
See <a href="{{site.baseurl}}/documentation/howto/write_zip.html" class="alert-link">here for more info</a>.
</div>
</div>
<div class="col-md-7">
<h3>Installation</h3>
<p>
<strong>With npm</strong> : <code>npm install jszip</code>
</p>
<p>
<strong>With bower</strong> : <code>bower install Stuk/jszip</code>
</p>
<p>
<strong>With component</strong> : <code>component install Stuk/jszip</code>
</p>
<p>
<strong>Manually</strong> : <a href="http://github.com/Stuk/jszip/zipball/master">download JSZip</a>
and include the file <code>dist/jszip.js</code> or <code>dist/jszip.min.js</code>
</p>
<br>
<p>
Installed ? Great ! You can now check our
<a href="{{site.baseurl}}/documentation/examples.html">guides and examples !</a>
</p>
</div>
</div>
<h3>Support</h3>
<table class="browser_support">
<tr>
<th class="support_op">Opera</th>
<th class="support_ff">Firefox</th>
<th class="support_sf">Safari</th>
<th class="support_cr">Chrome</th>
<th class="support_ie">Internet Explorer</th>
<th class="support_nd">Node.js</th>
</tr>
<tr>
<td>Yes</td>
<td>Yes</td>
<td>Yes</td>
<td>Yes</td>
<td>Yes</td>
<td>Yes</td>
</tr>
<tr>
<td>Tested with the latest version</td>
<td>Tested with 3.0 / 3.6 / latest version</td>
<td>Tested with the latest version</td>
<td>Tested with the latest version</td>
<td>Tested with IE 6 / 7 / 8 / 9 / 10</td>
<td>Tested with node.js 0.8 and 0.10</td>
</tr>
</table>
<h3>Getting help</h3>
<p>
Having trouble ? We'd like to help !
</p>
<ul>
<li>
Try the <a href="{{site.baseurl}}/documentation/faq.html">FAQ</a>, it has
answers to common questions.
</li>
<li>
If you're looking for informations about a specific method, try the
<a href="{{site.baseurl}}/documentation/api_jszip.html">documentation</a>.
</li>
<li>
Check the
<a href="{{site.baseurl}}/documentation/examples.html">examples</a>.
</li>
<li>
Report bugs in our
<a href="https://github.com/Stuk/jszip/issues">Bug tracker</a>.
</li>
</ul>
<h3>Test status</h3>
<dl class="dl-horizontal">
<dt>Travis build :</dt>
<dd>
<a href="http://travis-ci.org/Stuk/jszip">
<img src="https://api.travis-ci.org/Stuk/jszip.svg?branch=master" alt="" />
</a>
</dd>
<dt>Saucelabs build :</dt>
<dd>
<a href="https://saucelabs.com/u/jszip">
<img src="https://saucelabs.com/browser-matrix/jszip.svg" alt="" />
</a>
</dd>
<dt>Live tests :</dt>
<dd>
<a href="{{site.baseurl}}/test/">See for yourself !</a>
</dd>
</dl>

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'use strict';
var DataReader = require('./dataReader');
function ArrayReader(data) {
if (data) {
this.data = data;
this.length = this.data.length;
this.index = 0;
this.zero = 0;
for(var i = 0; i < this.data.length; i++) {
data[i] = data[i] & 0xFF;
}
}
}
ArrayReader.prototype = new DataReader();
/**
* @see DataReader.byteAt
*/
ArrayReader.prototype.byteAt = function(i) {
return this.data[this.zero + i];
};
/**
* @see DataReader.lastIndexOfSignature
*/
ArrayReader.prototype.lastIndexOfSignature = function(sig) {
var sig0 = sig.charCodeAt(0),
sig1 = sig.charCodeAt(1),
sig2 = sig.charCodeAt(2),
sig3 = sig.charCodeAt(3);
for (var i = this.length - 4; i >= 0; --i) {
if (this.data[i] === sig0 && this.data[i + 1] === sig1 && this.data[i + 2] === sig2 && this.data[i + 3] === sig3) {
return i - this.zero;
}
}
return -1;
};
/**
* @see DataReader.readData
*/
ArrayReader.prototype.readData = function(size) {
this.checkOffset(size);
if(size === 0) {
return [];
}
var result = this.data.slice(this.zero + this.index, this.zero + this.index + size);
this.index += size;
return result;
};
module.exports = ArrayReader;

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'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;
};

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'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;

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'use strict';
exports.STORE = {
magic: "\x00\x00",
compress: function(content, compressionOptions) {
return content; // no compression
},
uncompress: function(content) {
return content; // no compression
},
compressInputType: null,
uncompressInputType: null
};
exports.DEFLATE = require('./flate');

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'use strict';
var utils = require('./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:

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'use strict';
var utils = require('./utils');
function DataReader(data) {
this.data = null; // type : see implementation
this.length = 0;
this.index = 0;
this.zero = 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 < this.zero + 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;

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'use strict';
exports.base64 = false;
exports.binary = false;
exports.dir = false;
exports.createFolders = false;
exports.date = null;
exports.compression = null;
exports.compressionOptions = null;
exports.comment = null;
exports.unixPermissions = null;
exports.dosPermissions = null;

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'use strict';
var utils = require('./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.arrayBuffer2Blob(buffer);
};
/**
* @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);
};

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'use strict';
var USE_TYPEDARRAY = (typeof Uint8Array !== 'undefined') && (typeof Uint16Array !== 'undefined') && (typeof Uint32Array !== 'undefined');
var pako = require("pako");
exports.uncompressInputType = USE_TYPEDARRAY ? "uint8array" : "array";
exports.compressInputType = USE_TYPEDARRAY ? "uint8array" : "array";
exports.magic = "\x08\x00";
exports.compress = function(input, compressionOptions) {
return pako.deflateRaw(input, {
level : compressionOptions.level || -1 // default compression
});
};
exports.uncompress = function(input) {
return pako.inflateRaw(input);
};

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'use strict';
var base64 = require('./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 = require('./object');
JSZip.prototype.load = require('./load');
JSZip.support = require('./support');
JSZip.defaults = require('./defaults');
/**
* @deprecated
* This namespace will be removed in a future version without replacement.
*/
JSZip.utils = require('./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 = require('./compressions');
module.exports = JSZip;

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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
*/

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'use strict';
var base64 = require('./base64');
var utf8 = require('./utf8');
var utils = require('./utils');
var ZipEntries = require('./zipEntries');
module.exports = function(data, options) {
var files, zipEntries, i, input;
options = utils.extend(options || {}, {
base64: false,
checkCRC32: false,
optimizedBinaryString : false,
createFolders: false,
decodeFileName: utf8.utf8decode
});
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.fileNameStr, input.decompressed, {
binary: true,
optimizedBinaryString: true,
date: input.date,
dir: input.dir,
comment : input.fileCommentStr.length ? input.fileCommentStr : null,
unixPermissions : input.unixPermissions,
dosPermissions : input.dosPermissions,
createFolders: options.createFolders
});
}
if (zipEntries.zipComment.length) {
this.comment = zipEntries.zipComment;
}
return this;
};

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'use strict';
module.exports = function(data, encoding){
return new Buffer(data, encoding);
};
module.exports.test = function(b){
return Buffer.isBuffer(b);
};

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'use strict';
var Uint8ArrayReader = require('./uint8ArrayReader');
function NodeBufferReader(data) {
this.data = data;
this.length = this.data.length;
this.index = 0;
this.zero = 0;
}
NodeBufferReader.prototype = new Uint8ArrayReader();
/**
* @see DataReader.readData
*/
NodeBufferReader.prototype.readData = function(size) {
this.checkOffset(size);
var result = this.data.slice(this.zero + this.index, this.zero + this.index + size);
this.index += size;
return result;
};
module.exports = NodeBufferReader;

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'use strict';
var support = require('./support');
var utils = require('./utils');
var crc32 = require('./crc32');
var signature = require('./signature');
var defaults = require('./defaults');
var base64 = require('./base64');
var compressions = require('./compressions');
var CompressedObject = require('./compressedObject');
var nodeBuffer = require('./nodeBuffer');
var utf8 = require('./utf8');
var StringWriter = require('./stringWriter');
var Uint8ArrayWriter = require('./uint8ArrayWriter');
/**
* 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 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 (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 = utils.transformTo("string", 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.dir = options.dir;
this.date = options.date;
this.comment = options.comment;
this.unixPermissions = options.unixPermissions;
this.dosPermissions = options.dosPermissions;
this._data = data;
this.options = options;
/*
* This object contains initial values for dir and date.
* With them, we can check if the user changed the deprecated metadata in
* `ZipObject#options` or not.
*/
this._initialMetadata = {
dir : options.dir,
date : options.date
};
};
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;
};
/**
* 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 = utils.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 dataType = utils.getTypeOf(data),
parent;
o = prepareFileAttrs(o);
if (typeof o.unixPermissions === "string") {
o.unixPermissions = parseInt(o.unixPermissions, 8);
}
// UNX_IFDIR 0040000 see zipinfo.c
if (o.unixPermissions && (o.unixPermissions & 0x4000)) {
o.dir = true;
}
// Bit 4 Directory
if (o.dosPermissions && (o.dosPermissions & 0x0010)) {
o.dir = true;
}
if (o.dir) {
name = forceTrailingSlash(name);
}
if (o.createFolders && (parent = parentFolder(name))) {
folderAdd.call(this, parent, true);
}
if (o.dir || data === null || typeof data === "undefined") {
o.base64 = false;
o.binary = false;
data = null;
dataType = 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) : "";
};
/**
* Returns the path with a slash at the end.
* @private
* @param {String} path the path to check.
* @return {String} the path with a trailing slash.
*/
var forceTrailingSlash = function(path) {
// Check the name ends with a /
if (path.slice(-1) != "/") {
path += "/"; // IE doesn't like substr(-1)
}
return path;
};
/**
* Add a (sub) folder in the current folder.
* @private
* @param {string} name the folder's name
* @param {boolean=} [createFolders] If true, automatically create sub
* folders. Defaults to false.
* @return {Object} the new folder.
*/
var folderAdd = function(name, createFolders) {
createFolders = (typeof createFolders !== 'undefined') ? createFolders : false;
name = forceTrailingSlash(name);
// Does this folder already exist?
if (!this.files[name]) {
fileAdd.call(this, name, null, {
dir: true,
createFolders: createFolders
});
}
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.
* @param {Object} compressionOptions the options to use when compressing.
* @return {JSZip.CompressedObject} the compressed result.
*/
var generateCompressedObjectFrom = function(file, compression, compressionOptions) {
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.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), compressionOptions);
}
}
else {
// have uncompressed data
content = getBinaryData(file);
if (!content || content.length === 0 || file.dir) {
compression = compressions['STORE'];
content = "";
}
result.uncompressedSize = content.length;
result.crc32 = crc32(content);
result.compressedContent = compression.compress(utils.transformTo(compression.compressInputType, content), compressionOptions);
}
result.compressedSize = result.compressedContent.length;
result.compressionMethod = compression.magic;
return result;
};
/**
* Generate the UNIX part of the external file attributes.
* @param {Object} unixPermissions the unix permissions or null.
* @param {Boolean} isDir true if the entry is a directory, false otherwise.
* @return {Number} a 32 bit integer.
*
* adapted from http://unix.stackexchange.com/questions/14705/the-zip-formats-external-file-attribute :
*
* TTTTsstrwxrwxrwx0000000000ADVSHR
* ^^^^____________________________ file type, see zipinfo.c (UNX_*)
* ^^^_________________________ setuid, setgid, sticky
* ^^^^^^^^^________________ permissions
* ^^^^^^^^^^______ not used ?
* ^^^^^^ DOS attribute bits : Archive, Directory, Volume label, System file, Hidden, Read only
*/
var generateUnixExternalFileAttr = function (unixPermissions, isDir) {
var result = unixPermissions;
if (!unixPermissions) {
// I can't use octal values in strict mode, hence the hexa.
// 040775 => 0x41fd
// 0100664 => 0x81b4
result = isDir ? 0x41fd : 0x81b4;
}
return (result & 0xFFFF) << 16;
};
/**
* Generate the DOS part of the external file attributes.
* @param {Object} dosPermissions the dos permissions or null.
* @param {Boolean} isDir true if the entry is a directory, false otherwise.
* @return {Number} a 32 bit integer.
*
* Bit 0 Read-Only
* Bit 1 Hidden
* Bit 2 System
* Bit 3 Volume Label
* Bit 4 Directory
* Bit 5 Archive
*/
var generateDosExternalFileAttr = function (dosPermissions, isDir) {
// the dir flag is already set for compatibility
return (dosPermissions || 0) & 0x3F;
};
/**
* 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.
* @param {String} platform let's pretend we are this platform (change platform dependents fields)
* @param {Function} encodeFileName the function to encode the file name / comment.
* @return {object} the zip parts.
*/
var generateZipParts = function(name, file, compressedObject, offset, platform, encodeFileName) {
var data = compressedObject.compressedContent,
useCustomEncoding = encodeFileName !== utf8.utf8encode,
encodedFileName = utils.transformTo("string", encodeFileName(file.name)),
utfEncodedFileName = utils.transformTo("string", utf8.utf8encode(file.name)),
comment = file.comment || "",
encodedComment = utils.transformTo("string", encodeFileName(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;
}
var extFileAttr = 0;
var versionMadeBy = 0;
if (dir) {
// dos or unix, we set the dos dir flag
extFileAttr |= 0x00010;
}
if(platform === "UNIX") {
versionMadeBy = 0x031E; // UNIX, version 3.0
extFileAttr |= generateUnixExternalFileAttr(file.unixPermissions, dir);
} else { // DOS or other, fallback to DOS
versionMadeBy = 0x0014; // DOS, version 2.0
extFileAttr |= generateDosExternalFileAttr(file.dosPermissions, dir);
}
// 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(encodedFileName), 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(encodedComment), 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 += !useCustomEncoding && (useUTF8ForFileName || useUTF8ForComment) ? "\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(encodedFileName.length, 2);
// extra field length
header += decToHex(extraFields.length, 2);
var fileRecord = signature.LOCAL_FILE_HEADER + header + encodedFileName + extraFields;
var dirRecord = signature.CENTRAL_FILE_HEADER +
// version made by (00: DOS)
decToHex(versionMadeBy, 2) +
// file header (common to file and central directory)
header +
// file comment length
decToHex(encodedComment.length, 2) +
// disk number start
"\x00\x00" +
// internal file attributes TODO
"\x00\x00" +
// external file attributes
decToHex(extFileAttr, 4) +
// relative offset of local header
decToHex(offset, 4) +
// file name
encodedFileName +
// extra field
extraFields +
// file comment
encodedComment;
return {
fileRecord: fileRecord,
dirRecord: dirRecord,
compressedObject: compressedObject
};
};
// 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, utils.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.dir && regexp.test(relativePath);
});
}
else { // text
return this.filter(function(relativePath, file) {
return !file.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.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 && !file.dir) {
// file
delete this.files[name];
} else {
// maybe a folder, delete recursively
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 = utils.extend(options || {}, {
base64: true,
compression: "STORE",
compressionOptions : null,
type: "base64",
platform: "DOS",
comment: null,
mimeType: 'application/zip',
encodeFileName: utf8.utf8encode
});
utils.checkSupport(options.type);
// accept nodejs `process.platform`
if(
options.platform === 'darwin' ||
options.platform === 'freebsd' ||
options.platform === 'linux' ||
options.platform === 'sunos'
) {
options.platform = "UNIX";
}
if (options.platform === 'win32') {
options.platform = "DOS";
}
var zipData = [],
localDirLength = 0,
centralDirLength = 0,
writer, i,
encodedComment = utils.transformTo("string", options.encodeFileName(options.comment || this.comment || ""));
// first, generate all the zip parts.
for (var name in this.files) {
if (!this.files.hasOwnProperty(name)) {
continue;
}
var file = this.files[name];
var compressionName = file.options.compression || options.compression.toUpperCase();
var compression = compressions[compressionName];
if (!compression) {
throw new Error(compressionName + " is not a valid compression method !");
}
var compressionOptions = file.options.compressionOptions || options.compressionOptions || {};
var compressedObject = generateCompressedObjectFrom.call(this, file, compression, compressionOptions);
var zipPart = generateZipParts.call(this, name, file, compressedObject, localDirLength, options.platform, options.encodeFileName);
localDirLength += zipPart.fileRecord.length + compressedObject.compressedSize;
centralDirLength += zipPart.dirRecord.length;
zipData.push(zipPart);
}
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(zipData.length, 2) +
// total number of entries in the central directory
decToHex(zipData.length, 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(encodedComment.length, 2) +
// .ZIP file comment
encodedComment;
// we have all the parts (and the total length)
// time to create a writer !
var typeName = options.type.toLowerCase();
if(typeName==="uint8array"||typeName==="arraybuffer"||typeName==="blob"||typeName==="nodebuffer") {
writer = new Uint8ArrayWriter(localDirLength + centralDirLength + dirEnd.length);
}else{
writer = new StringWriter(localDirLength + centralDirLength + dirEnd.length);
}
for (i = 0; i < zipData.length; i++) {
writer.append(zipData[i].fileRecord);
writer.append(zipData[i].compressedObject.compressedContent);
}
for (i = 0; i < zipData.length; i++) {
writer.append(zipData[i].dirRecord);
}
writer.append(dirEnd);
var zip = writer.finalize();
switch(options.type.toLowerCase()) {
// case "zip is an Uint8Array"
case "uint8array" :
case "arraybuffer" :
case "nodebuffer" :
return utils.transformTo(options.type.toLowerCase(), zip);
case "blob" :
return utils.arrayBuffer2Blob(utils.transformTo("arraybuffer", zip), options.mimeType);
// case "zip is a string"
case "base64" :
return (options.base64) ? base64.encode(zip) : zip;
default : // case "string" :
return zip;
}
},
/**
* @deprecated
* This method will be removed in a future version without replacement.
*/
crc32: function (input, crc) {
return crc32(input, crc);
},
/**
* @deprecated
* This method will be removed in a future version without replacement.
*/
utf8encode: function (string) {
return utils.transformTo("string", utf8.utf8encode(string));
},
/**
* @deprecated
* This method will be removed in a future version without replacement.
*/
utf8decode: function (input) {
return utf8.utf8decode(input);
}
};
module.exports = out;

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'use strict';
exports.LOCAL_FILE_HEADER = "PK\x03\x04";
exports.CENTRAL_FILE_HEADER = "PK\x01\x02";
exports.CENTRAL_DIRECTORY_END = "PK\x05\x06";
exports.ZIP64_CENTRAL_DIRECTORY_LOCATOR = "PK\x06\x07";
exports.ZIP64_CENTRAL_DIRECTORY_END = "PK\x06\x06";
exports.DATA_DESCRIPTOR = "PK\x07\x08";

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'use strict';
var DataReader = require('./dataReader');
var utils = require('./utils');
function StringReader(data, optimizedBinaryString) {
this.data = data;
if (!optimizedBinaryString) {
this.data = utils.string2binary(this.data);
}
this.length = this.data.length;
this.index = 0;
this.zero = 0;
}
StringReader.prototype = new DataReader();
/**
* @see DataReader.byteAt
*/
StringReader.prototype.byteAt = function(i) {
return this.data.charCodeAt(this.zero + i);
};
/**
* @see DataReader.lastIndexOfSignature
*/
StringReader.prototype.lastIndexOfSignature = function(sig) {
return this.data.lastIndexOf(sig) - this.zero;
};
/**
* @see DataReader.readData
*/
StringReader.prototype.readData = function(size) {
this.checkOffset(size);
// this will work because the constructor applied the "& 0xff" mask.
var result = this.data.slice(this.zero + this.index, this.zero + this.index + size);
this.index += size;
return result;
};
module.exports = StringReader;

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'use strict';
var utils = require('./utils');
/**
* 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("");
}
};
module.exports = StringWriter;

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'use strict';
exports.base64 = true;
exports.array = true;
exports.string = true;
exports.arraybuffer = typeof ArrayBuffer !== "undefined" && typeof Uint8Array !== "undefined";
// contains true if JSZip can read/generate nodejs Buffer, false otherwise.
// Browserify will provide a Buffer implementation for browsers, which is
// an augmented Uint8Array (i.e., can be used as either Buffer or U8).
exports.nodebuffer = typeof Buffer !== "undefined";
// contains true if JSZip can read/generate Uint8Array, false otherwise.
exports.uint8array = typeof Uint8Array !== "undefined";
if (typeof ArrayBuffer === "undefined") {
exports.blob = false;
}
else {
var buffer = new ArrayBuffer(0);
try {
exports.blob = new Blob([buffer], {
type: "application/zip"
}).size === 0;
}
catch (e) {
try {
var Builder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder || window.MSBlobBuilder;
var builder = new Builder();
builder.append(buffer);
exports.blob = builder.getBlob('application/zip').size === 0;
}
catch (e) {
exports.blob = false;
}
}
}

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'use strict';
var ArrayReader = require('./arrayReader');
function Uint8ArrayReader(data) {
if (data) {
this.data = data;
this.length = this.data.length;
this.index = 0;
this.zero = 0;
}
}
Uint8ArrayReader.prototype = new ArrayReader();
/**
* @see DataReader.readData
*/
Uint8ArrayReader.prototype.readData = function(size) {
this.checkOffset(size);
if(size === 0) {
// in IE10, when using subarray(idx, idx), we get the array [0x00] instead of [].
return new Uint8Array(0);
}
var result = this.data.subarray(this.zero + this.index, this.zero + this.index + size);
this.index += size;
return result;
};
module.exports = Uint8ArrayReader;

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'use strict';
var utils = require('./utils');
/**
* 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;
}
};
module.exports = Uint8ArrayWriter;

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'use strict';
var utils = require('./utils');
var support = require('./support');
var nodeBuffer = require('./nodeBuffer');
/**
* The following functions come from pako, from pako/lib/utils/strings
* released under the MIT license, see pako https://github.com/nodeca/pako/
*/
// Table with utf8 lengths (calculated by first byte of sequence)
// Note, that 5 & 6-byte values and some 4-byte values can not be represented in JS,
// because max possible codepoint is 0x10ffff
var _utf8len = new Array(256);
for (var i=0; i<256; i++) {
_utf8len[i] = (i >= 252 ? 6 : i >= 248 ? 5 : i >= 240 ? 4 : i >= 224 ? 3 : i >= 192 ? 2 : 1);
}
_utf8len[254]=_utf8len[254]=1; // Invalid sequence start
// convert string to array (typed, when possible)
var string2buf = function (str) {
var buf, c, c2, m_pos, i, str_len = str.length, buf_len = 0;
// count binary size
for (m_pos = 0; m_pos < str_len; m_pos++) {
c = str.charCodeAt(m_pos);
if ((c & 0xfc00) === 0xd800 && (m_pos+1 < str_len)) {
c2 = str.charCodeAt(m_pos+1);
if ((c2 & 0xfc00) === 0xdc00) {
c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);
m_pos++;
}
}
buf_len += c < 0x80 ? 1 : c < 0x800 ? 2 : c < 0x10000 ? 3 : 4;
}
// allocate buffer
if (support.uint8array) {
buf = new Uint8Array(buf_len);
} else {
buf = new Array(buf_len);
}
// convert
for (i=0, m_pos = 0; i < buf_len; m_pos++) {
c = str.charCodeAt(m_pos);
if ((c & 0xfc00) === 0xd800 && (m_pos+1 < str_len)) {
c2 = str.charCodeAt(m_pos+1);
if ((c2 & 0xfc00) === 0xdc00) {
c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);
m_pos++;
}
}
if (c < 0x80) {
/* one byte */
buf[i++] = c;
} else if (c < 0x800) {
/* two bytes */
buf[i++] = 0xC0 | (c >>> 6);
buf[i++] = 0x80 | (c & 0x3f);
} else if (c < 0x10000) {
/* three bytes */
buf[i++] = 0xE0 | (c >>> 12);
buf[i++] = 0x80 | (c >>> 6 & 0x3f);
buf[i++] = 0x80 | (c & 0x3f);
} else {
/* four bytes */
buf[i++] = 0xf0 | (c >>> 18);
buf[i++] = 0x80 | (c >>> 12 & 0x3f);
buf[i++] = 0x80 | (c >>> 6 & 0x3f);
buf[i++] = 0x80 | (c & 0x3f);
}
}
return buf;
};
// Calculate max possible position in utf8 buffer,
// that will not break sequence. If that's not possible
// - (very small limits) return max size as is.
//
// buf[] - utf8 bytes array
// max - length limit (mandatory);
var utf8border = function(buf, max) {
var pos;
max = max || buf.length;
if (max > buf.length) { max = buf.length; }
// go back from last position, until start of sequence found
pos = max-1;
while (pos >= 0 && (buf[pos] & 0xC0) === 0x80) { pos--; }
// Fuckup - very small and broken sequence,
// return max, because we should return something anyway.
if (pos < 0) { return max; }
// If we came to start of buffer - that means vuffer is too small,
// return max too.
if (pos === 0) { return max; }
return (pos + _utf8len[buf[pos]] > max) ? pos : max;
};
// convert array to string
var buf2string = function (buf) {
var str, i, out, c, c_len;
var len = buf.length;
// Reserve max possible length (2 words per char)
// NB: by unknown reasons, Array is significantly faster for
// String.fromCharCode.apply than Uint16Array.
var utf16buf = new Array(len*2);
for (out=0, i=0; i<len;) {
c = buf[i++];
// quick process ascii
if (c < 0x80) { utf16buf[out++] = c; continue; }
c_len = _utf8len[c];
// skip 5 & 6 byte codes
if (c_len > 4) { utf16buf[out++] = 0xfffd; i += c_len-1; continue; }
// apply mask on first byte
c &= c_len === 2 ? 0x1f : c_len === 3 ? 0x0f : 0x07;
// join the rest
while (c_len > 1 && i < len) {
c = (c << 6) | (buf[i++] & 0x3f);
c_len--;
}
// terminated by end of string?
if (c_len > 1) { utf16buf[out++] = 0xfffd; continue; }
if (c < 0x10000) {
utf16buf[out++] = c;
} else {
c -= 0x10000;
utf16buf[out++] = 0xd800 | ((c >> 10) & 0x3ff);
utf16buf[out++] = 0xdc00 | (c & 0x3ff);
}
}
// shrinkBuf(utf16buf, out)
if (utf16buf.length !== out) {
if(utf16buf.subarray) {
utf16buf = utf16buf.subarray(0, out);
} else {
utf16buf.length = out;
}
}
// return String.fromCharCode.apply(null, utf16buf);
return utils.applyFromCharCode(utf16buf);
};
// That's all for the pako functions.
/**
* Transform a javascript string into an array (typed if possible) of bytes,
* UTF-8 encoded.
* @param {String} str the string to encode
* @return {Array|Uint8Array|Buffer} the UTF-8 encoded string.
*/
exports.utf8encode = function utf8encode(str) {
if (support.nodebuffer) {
return nodeBuffer(str, "utf-8");
}
return string2buf(str);
};
/**
* Transform a bytes array (or a representation) representing an UTF-8 encoded
* string into a javascript string.
* @param {Array|Uint8Array|Buffer} buf the data de decode
* @return {String} the decoded string.
*/
exports.utf8decode = function utf8decode(buf) {
if (support.nodebuffer) {
return utils.transformTo("nodebuffer", buf).toString("utf-8");
}
buf = utils.transformTo(support.uint8array ? "uint8array" : "array", buf);
// return buf2string(buf);
// Chrome prefers to work with "small" chunks of data
// for the method buf2string.
// Firefox and Chrome has their own shortcut, IE doesn't seem to really care.
var result = [], k = 0, len = buf.length, chunk = 65536;
while (k < len) {
var nextBoundary = utf8border(buf, Math.min(k + chunk, len));
if (support.uint8array) {
result.push(buf2string(buf.subarray(k, nextBoundary)));
} else {
result.push(buf2string(buf.slice(k, nextBoundary)));
}
k = nextBoundary;
}
return result.join("");
};
// vim: set shiftwidth=4 softtabstop=4:

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'use strict';
var support = require('./support');
var compressions = require('./compressions');
var nodeBuffer = require('./nodeBuffer');
/**
* Convert a string to a "binary string" : a string containing only char codes between 0 and 255.
* @param {string} str the string to transform.
* @return {String} the binary string.
*/
exports.string2binary = function(str) {
var result = "";
for (var i = 0; i < str.length; i++) {
result += String.fromCharCode(str.charCodeAt(i) & 0xff);
}
return result;
};
exports.arrayBuffer2Blob = function(buffer, mimeType) {
exports.checkSupport("blob");
mimeType = mimeType || 'application/zip';
try {
// Blob constructor
return new Blob([buffer], {
type: mimeType
});
}
catch (e) {
try {
// deprecated, browser only, old way
var Builder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder || window.MSBlobBuilder;
var builder = new Builder();
builder.append(buffer);
return builder.getBlob(mimeType);
}
catch (e) {
// well, fuck ?!
throw new Error("Bug : can't construct the Blob.");
}
}
};
/**
* The identity function.
* @param {Object} input the input.
* @return {Object} the same input.
*/
function identity(input) {
return input;
}
/**
* Fill in an array with a string.
* @param {String} str the string to use.
* @param {Array|ArrayBuffer|Uint8Array|Buffer} array the array to fill in (will be mutated).
* @return {Array|ArrayBuffer|Uint8Array|Buffer} the updated array.
*/
function stringToArrayLike(str, array) {
for (var i = 0; i < str.length; ++i) {
array[i] = str.charCodeAt(i) & 0xFF;
}
return array;
}
/**
* Transform an array-like object to a string.
* @param {Array|ArrayBuffer|Uint8Array|Buffer} array the array to transform.
* @return {String} the result.
*/
function arrayLikeToString(array) {
// Performances notes :
// --------------------
// String.fromCharCode.apply(null, array) is the fastest, see
// see http://jsperf.com/converting-a-uint8array-to-a-string/2
// but the stack is limited (and we can get huge arrays !).
//
// result += String.fromCharCode(array[i]); generate too many strings !
//
// This code is inspired by http://jsperf.com/arraybuffer-to-string-apply-performance/2
var chunk = 65536;
var result = [],
len = array.length,
type = exports.getTypeOf(array),
k = 0,
canUseApply = true;
try {
switch(type) {
case "uint8array":
String.fromCharCode.apply(null, new Uint8Array(0));
break;
case "nodebuffer":
String.fromCharCode.apply(null, nodeBuffer(0));
break;
}
} catch(e) {
canUseApply = false;
}
// no apply : slow and painful algorithm
// default browser on android 4.*
if (!canUseApply) {
var resultStr = "";
for(var i = 0; i < array.length;i++) {
resultStr += String.fromCharCode(array[i]);
}
return resultStr;
}
while (k < len && chunk > 1) {
try {
if (type === "array" || type === "nodebuffer") {
result.push(String.fromCharCode.apply(null, array.slice(k, Math.min(k + chunk, len))));
}
else {
result.push(String.fromCharCode.apply(null, array.subarray(k, Math.min(k + chunk, len))));
}
k += chunk;
}
catch (e) {
chunk = Math.floor(chunk / 2);
}
}
return result.join("");
}
exports.applyFromCharCode = arrayLikeToString;
/**
* Copy the data from an array-like to an other array-like.
* @param {Array|ArrayBuffer|Uint8Array|Buffer} arrayFrom the origin array.
* @param {Array|ArrayBuffer|Uint8Array|Buffer} arrayTo the destination array which will be mutated.
* @return {Array|ArrayBuffer|Uint8Array|Buffer} the updated destination array.
*/
function arrayLikeToArrayLike(arrayFrom, arrayTo) {
for (var i = 0; i < arrayFrom.length; i++) {
arrayTo[i] = arrayFrom[i];
}
return arrayTo;
}
// a matrix containing functions to transform everything into everything.
var transform = {};
// string to ?
transform["string"] = {
"string": identity,
"array": function(input) {
return stringToArrayLike(input, new Array(input.length));
},
"arraybuffer": function(input) {
return transform["string"]["uint8array"](input).buffer;
},
"uint8array": function(input) {
return stringToArrayLike(input, new Uint8Array(input.length));
},
"nodebuffer": function(input) {
return stringToArrayLike(input, nodeBuffer(input.length));
}
};
// array to ?
transform["array"] = {
"string": arrayLikeToString,
"array": identity,
"arraybuffer": function(input) {
return (new Uint8Array(input)).buffer;
},
"uint8array": function(input) {
return new Uint8Array(input);
},
"nodebuffer": function(input) {
return nodeBuffer(input);
}
};
// arraybuffer to ?
transform["arraybuffer"] = {
"string": function(input) {
return arrayLikeToString(new Uint8Array(input));
},
"array": function(input) {
return arrayLikeToArrayLike(new Uint8Array(input), new Array(input.byteLength));
},
"arraybuffer": identity,
"uint8array": function(input) {
return new Uint8Array(input);
},
"nodebuffer": function(input) {
return nodeBuffer(new Uint8Array(input));
}
};
// uint8array to ?
transform["uint8array"] = {
"string": arrayLikeToString,
"array": function(input) {
return arrayLikeToArrayLike(input, new Array(input.length));
},
"arraybuffer": function(input) {
return input.buffer;
},
"uint8array": identity,
"nodebuffer": function(input) {
return nodeBuffer(input);
}
};
// nodebuffer to ?
transform["nodebuffer"] = {
"string": arrayLikeToString,
"array": function(input) {
return arrayLikeToArrayLike(input, new Array(input.length));
},
"arraybuffer": function(input) {
return transform["nodebuffer"]["uint8array"](input).buffer;
},
"uint8array": function(input) {
return arrayLikeToArrayLike(input, new Uint8Array(input.length));
},
"nodebuffer": identity
};
/**
* Transform an input into any type.
* The supported output type are : string, array, uint8array, arraybuffer, nodebuffer.
* If no output type is specified, the unmodified input will be returned.
* @param {String} outputType the output type.
* @param {String|Array|ArrayBuffer|Uint8Array|Buffer} input the input to convert.
* @throws {Error} an Error if the browser doesn't support the requested output type.
*/
exports.transformTo = function(outputType, input) {
if (!input) {
// undefined, null, etc
// an empty string won't harm.
input = "";
}
if (!outputType) {
return input;
}
exports.checkSupport(outputType);
var inputType = exports.getTypeOf(input);
var result = transform[inputType][outputType](input);
return result;
};
/**
* Return the type of the input.
* The type will be in a format valid for JSZip.utils.transformTo : string, array, uint8array, arraybuffer.
* @param {Object} input the input to identify.
* @return {String} the (lowercase) type of the input.
*/
exports.getTypeOf = function(input) {
if (typeof input === "string") {
return "string";
}
if (Object.prototype.toString.call(input) === "[object Array]") {
return "array";
}
if (support.nodebuffer && nodeBuffer.test(input)) {
return "nodebuffer";
}
if (support.uint8array && input instanceof Uint8Array) {
return "uint8array";
}
if (support.arraybuffer && input instanceof ArrayBuffer) {
return "arraybuffer";
}
};
/**
* Throw an exception if the type is not supported.
* @param {String} type the type to check.
* @throws {Error} an Error if the browser doesn't support the requested type.
*/
exports.checkSupport = function(type) {
var supported = support[type.toLowerCase()];
if (!supported) {
throw new Error(type + " is not supported by this browser");
}
};
exports.MAX_VALUE_16BITS = 65535;
exports.MAX_VALUE_32BITS = -1; // well, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF" is parsed as -1
/**
* Prettify a string read as binary.
* @param {string} str the string to prettify.
* @return {string} a pretty string.
*/
exports.pretty = function(str) {
var res = '',
code, i;
for (i = 0; i < (str || "").length; i++) {
code = str.charCodeAt(i);
res += '\\x' + (code < 16 ? "0" : "") + code.toString(16).toUpperCase();
}
return res;
};
/**
* Find a compression registered in JSZip.
* @param {string} compressionMethod the method magic to find.
* @return {Object|null} the JSZip compression object, null if none found.
*/
exports.findCompression = function(compressionMethod) {
for (var method in compressions) {
if (!compressions.hasOwnProperty(method)) {
continue;
}
if (compressions[method].magic === compressionMethod) {
return compressions[method];
}
}
return null;
};
/**
* Cross-window, cross-Node-context regular expression detection
* @param {Object} object Anything
* @return {Boolean} true if the object is a regular expression,
* false otherwise
*/
exports.isRegExp = function (object) {
return Object.prototype.toString.call(object) === "[object RegExp]";
};
/**
* 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.
*/
exports.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;
};

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'use strict';
var StringReader = require('./stringReader');
var NodeBufferReader = require('./nodeBufferReader');
var Uint8ArrayReader = require('./uint8ArrayReader');
var ArrayReader = require('./arrayReader');
var utils = require('./utils');
var sig = require('./signature');
var ZipEntry = require('./zipEntry');
var support = require('./support');
var jszipProto = require('./object');
// class ZipEntries {{{
/**
* All the entries in the zip file.
* @constructor
* @param {String|ArrayBuffer|Uint8Array} data the binary stream to load.
* @param {Object} loadOptions Options for loading the stream.
*/
function ZipEntries(data, loadOptions) {
this.files = [];
this.loadOptions = loadOptions;
if (data) {
this.load(data);
}
}
ZipEntries.prototype = {
/**
* Check that the reader is on the speficied signature.
* @param {string} expectedSignature the expected signature.
* @throws {Error} if it is an other signature.
*/
checkSignature: function(expectedSignature) {
var signature = this.reader.readString(4);
if (signature !== expectedSignature) {
throw new Error("Corrupted zip or bug : unexpected signature " + "(" + utils.pretty(signature) + ", expected " + utils.pretty(expectedSignature) + ")");
}
},
/**
* Check if the given signature is at the given index.
* @param {number} askedIndex the index to check.
* @param {string} expectedSignature the signature to expect.
* @return {boolean} true if the signature is here, false otherwise.
*/
isSignature: function(askedIndex, expectedSignature) {
var currentIndex = this.reader.index;
this.reader.setIndex(askedIndex);
var signature = this.reader.readString(4);
var result = signature === expectedSignature;
this.reader.setIndex(currentIndex);
return result;
},
/**
* Read the end of the central directory.
*/
readBlockEndOfCentral: function() {
this.diskNumber = this.reader.readInt(2);
this.diskWithCentralDirStart = this.reader.readInt(2);
this.centralDirRecordsOnThisDisk = this.reader.readInt(2);
this.centralDirRecords = this.reader.readInt(2);
this.centralDirSize = this.reader.readInt(4);
this.centralDirOffset = this.reader.readInt(4);
this.zipCommentLength = this.reader.readInt(2);
// warning : the encoding depends of the system locale
// On a linux machine with LANG=en_US.utf8, this field is utf8 encoded.
// On a windows machine, this field is encoded with the localized windows code page.
var zipComment = this.reader.readData(this.zipCommentLength);
var decodeParamType = support.uint8array ? "uint8array" : "array";
// To get consistent behavior with the generation part, we will assume that
// this is utf8 encoded unless specified otherwise.
var decodeContent = utils.transformTo(decodeParamType, zipComment);
this.zipComment = this.loadOptions.decodeFileName(decodeContent);
},
/**
* Read the end of the Zip 64 central directory.
* Not merged with the method readEndOfCentral :
* The end of central can coexist with its Zip64 brother,
* I don't want to read the wrong number of bytes !
*/
readBlockZip64EndOfCentral: function() {
this.zip64EndOfCentralSize = this.reader.readInt(8);
this.versionMadeBy = this.reader.readString(2);
this.versionNeeded = this.reader.readInt(2);
this.diskNumber = this.reader.readInt(4);
this.diskWithCentralDirStart = this.reader.readInt(4);
this.centralDirRecordsOnThisDisk = this.reader.readInt(8);
this.centralDirRecords = this.reader.readInt(8);
this.centralDirSize = this.reader.readInt(8);
this.centralDirOffset = this.reader.readInt(8);
this.zip64ExtensibleData = {};
var extraDataSize = this.zip64EndOfCentralSize - 44,
index = 0,
extraFieldId,
extraFieldLength,
extraFieldValue;
while (index < extraDataSize) {
extraFieldId = this.reader.readInt(2);
extraFieldLength = this.reader.readInt(4);
extraFieldValue = this.reader.readString(extraFieldLength);
this.zip64ExtensibleData[extraFieldId] = {
id: extraFieldId,
length: extraFieldLength,
value: extraFieldValue
};
}
},
/**
* Read the end of the Zip 64 central directory locator.
*/
readBlockZip64EndOfCentralLocator: function() {
this.diskWithZip64CentralDirStart = this.reader.readInt(4);
this.relativeOffsetEndOfZip64CentralDir = this.reader.readInt(8);
this.disksCount = this.reader.readInt(4);
if (this.disksCount > 1) {
throw new Error("Multi-volumes zip are not supported");
}
},
/**
* Read the local files, based on the offset read in the central part.
*/
readLocalFiles: function() {
var i, file;
for (i = 0; i < this.files.length; i++) {
file = this.files[i];
this.reader.setIndex(file.localHeaderOffset);
this.checkSignature(sig.LOCAL_FILE_HEADER);
file.readLocalPart(this.reader);
file.handleUTF8();
file.processAttributes();
}
},
/**
* Read the central directory.
*/
readCentralDir: function() {
var file;
this.reader.setIndex(this.centralDirOffset);
while (this.reader.readString(4) === sig.CENTRAL_FILE_HEADER) {
file = new ZipEntry({
zip64: this.zip64
}, this.loadOptions);
file.readCentralPart(this.reader);
this.files.push(file);
}
if (this.centralDirRecords !== this.files.length) {
if (this.centralDirRecords !== 0 && this.files.length === 0) {
// We expected some records but couldn't find ANY.
// This is really suspicious, as if something went wrong.
throw new Error("Corrupted zip or bug: expected " + this.centralDirRecords + " records in central dir, got " + this.files.length);
} else {
// We found some records but not all.
// Something is wrong but we got something for the user: no error here.
// console.warn("expected", this.centralDirRecords, "records in central dir, got", this.files.length);
}
}
},
/**
* Read the end of central directory.
*/
readEndOfCentral: function() {
var offset = this.reader.lastIndexOfSignature(sig.CENTRAL_DIRECTORY_END);
if (offset < 0) {
// Check if the content is a truncated zip or complete garbage.
// A "LOCAL_FILE_HEADER" is not required at the beginning (auto
// extractible zip for example) but it can give a good hint.
// If an ajax request was used without responseType, we will also
// get unreadable data.
var isGarbage = !this.isSignature(0, sig.LOCAL_FILE_HEADER);
if (isGarbage) {
throw new Error("Can't find end of central directory : is this a zip file ? " +
"If it is, see http://stuk.github.io/jszip/documentation/howto/read_zip.html");
} else {
throw new Error("Corrupted zip : can't find end of central directory");
}
}
this.reader.setIndex(offset);
var endOfCentralDirOffset = offset;
this.checkSignature(sig.CENTRAL_DIRECTORY_END);
this.readBlockEndOfCentral();
/* extract from the zip spec :
4) If one of the fields in the end of central directory
record is too small to hold required data, the field
should be set to -1 (0xFFFF or 0xFFFFFFFF) and the
ZIP64 format record should be created.
5) The end of central directory record and the
Zip64 end of central directory locator record must
reside on the same disk when splitting or spanning
an archive.
*/
if (this.diskNumber === utils.MAX_VALUE_16BITS || this.diskWithCentralDirStart === utils.MAX_VALUE_16BITS || this.centralDirRecordsOnThisDisk === utils.MAX_VALUE_16BITS || this.centralDirRecords === utils.MAX_VALUE_16BITS || this.centralDirSize === utils.MAX_VALUE_32BITS || this.centralDirOffset === utils.MAX_VALUE_32BITS) {
this.zip64 = true;
/*
Warning : the zip64 extension is supported, but ONLY if the 64bits integer read from
the zip file can fit into a 32bits integer. This cannot be solved : Javascript represents
all numbers as 64-bit double precision IEEE 754 floating point numbers.
So, we have 53bits for integers and bitwise operations treat everything as 32bits.
see https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Operators/Bitwise_Operators
and http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf section 8.5
*/
// should look for a zip64 EOCD locator
offset = this.reader.lastIndexOfSignature(sig.ZIP64_CENTRAL_DIRECTORY_LOCATOR);
if (offset < 0) {
throw new Error("Corrupted zip : can't find the ZIP64 end of central directory locator");
}
this.reader.setIndex(offset);
this.checkSignature(sig.ZIP64_CENTRAL_DIRECTORY_LOCATOR);
this.readBlockZip64EndOfCentralLocator();
// now the zip64 EOCD record
if (!this.isSignature(this.relativeOffsetEndOfZip64CentralDir, sig.ZIP64_CENTRAL_DIRECTORY_END)) {
// console.warn("ZIP64 end of central directory not where expected.");
this.relativeOffsetEndOfZip64CentralDir = this.reader.lastIndexOfSignature(sig.ZIP64_CENTRAL_DIRECTORY_END);
if (this.relativeOffsetEndOfZip64CentralDir < 0) {
throw new Error("Corrupted zip : can't find the ZIP64 end of central directory");
}
}
this.reader.setIndex(this.relativeOffsetEndOfZip64CentralDir);
this.checkSignature(sig.ZIP64_CENTRAL_DIRECTORY_END);
this.readBlockZip64EndOfCentral();
}
var expectedEndOfCentralDirOffset = this.centralDirOffset + this.centralDirSize;
if (this.zip64) {
expectedEndOfCentralDirOffset += 20; // end of central dir 64 locator
expectedEndOfCentralDirOffset += 12 /* should not include the leading 12 bytes */ + this.zip64EndOfCentralSize;
}
var extraBytes = endOfCentralDirOffset - expectedEndOfCentralDirOffset;
if (extraBytes > 0) {
// console.warn(extraBytes, "extra bytes at beginning or within zipfile");
if (this.isSignature(endOfCentralDirOffset, sig.CENTRAL_FILE_HEADER)) {
// The offsets seem wrong, but we have something at the specified offset.
// So… we keep it.
} else {
// the offset is wrong, update the "zero" of the reader
// this happens if data has been prepended (crx files for example)
this.reader.zero = extraBytes;
}
} else if (extraBytes < 0) {
throw new Error("Corrupted zip: missing " + Math.abs(extraBytes) + " bytes.");
}
},
prepareReader: function(data) {
var type = utils.getTypeOf(data);
utils.checkSupport(type);
if (type === "string" && !support.uint8array) {
this.reader = new StringReader(data, this.loadOptions.optimizedBinaryString);
}
else if (type === "nodebuffer") {
this.reader = new NodeBufferReader(data);
}
else if (support.uint8array) {
this.reader = new Uint8ArrayReader(utils.transformTo("uint8array", data));
} else if (support.array) {
this.reader = new ArrayReader(utils.transformTo("array", data));
} else {
throw new Error("Unexpected error: unsupported type '" + type + "'");
}
},
/**
* Read a zip file and create ZipEntries.
* @param {String|ArrayBuffer|Uint8Array|Buffer} data the binary string representing a zip file.
*/
load: function(data) {
this.prepareReader(data);
this.readEndOfCentral();
this.readCentralDir();
this.readLocalFiles();
}
};
// }}} end of ZipEntries
module.exports = ZipEntries;

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'use strict';
var StringReader = require('./stringReader');
var utils = require('./utils');
var CompressedObject = require('./compressedObject');
var jszipProto = require('./object');
var support = require('./support');
var MADE_BY_DOS = 0x00;
var MADE_BY_UNIX = 0x03;
// class ZipEntry {{{
/**
* An entry in the zip file.
* @constructor
* @param {Object} options Options of the current file.
* @param {Object} loadOptions Options for loading the stream.
*/
function ZipEntry(options, loadOptions) {
this.options = options;
this.loadOptions = loadOptions;
}
ZipEntry.prototype = {
/**
* say if the file is encrypted.
* @return {boolean} true if the file is encrypted, false otherwise.
*/
isEncrypted: function() {
// bit 1 is set
return (this.bitFlag & 0x0001) === 0x0001;
},
/**
* say if the file has utf-8 filename/comment.
* @return {boolean} true if the filename/comment is in utf-8, false otherwise.
*/
useUTF8: function() {
// bit 11 is set
return (this.bitFlag & 0x0800) === 0x0800;
},
/**
* Prepare the function used to generate the compressed content from this ZipFile.
* @param {DataReader} reader the reader to use.
* @param {number} from the offset from where we should read the data.
* @param {number} length the length of the data to read.
* @return {Function} the callback to get the compressed content (the type depends of the DataReader class).
*/
prepareCompressedContent: function(reader, from, length) {
return function() {
var previousIndex = reader.index;
reader.setIndex(from);
var compressedFileData = reader.readData(length);
reader.setIndex(previousIndex);
return compressedFileData;
};
},
/**
* Prepare the function used to generate the uncompressed content from this ZipFile.
* @param {DataReader} reader the reader to use.
* @param {number} from the offset from where we should read the data.
* @param {number} length the length of the data to read.
* @param {JSZip.compression} compression the compression used on this file.
* @param {number} uncompressedSize the uncompressed size to expect.
* @return {Function} the callback to get the uncompressed content (the type depends of the DataReader class).
*/
prepareContent: function(reader, from, length, compression, uncompressedSize) {
return function() {
var compressedFileData = utils.transformTo(compression.uncompressInputType, this.getCompressedContent());
var uncompressedFileData = compression.uncompress(compressedFileData);
if (uncompressedFileData.length !== uncompressedSize) {
throw new Error("Bug : uncompressed data size mismatch");
}
return uncompressedFileData;
};
},
/**
* Read the local part of a zip file and add the info in this object.
* @param {DataReader} reader the reader to use.
*/
readLocalPart: function(reader) {
var compression, localExtraFieldsLength;
// we already know everything from the central dir !
// If the central dir data are false, we are doomed.
// On the bright side, the local part is scary : zip64, data descriptors, both, etc.
// The less data we get here, the more reliable this should be.
// Let's skip the whole header and dash to the data !
reader.skip(22);
// in some zip created on windows, the filename stored in the central dir contains \ instead of /.
// Strangely, the filename here is OK.
// I would love to treat these zip files as corrupted (see http://www.info-zip.org/FAQ.html#backslashes
// or APPNOTE#4.4.17.1, "All slashes MUST be forward slashes '/'") but there are a lot of bad zip generators...
// Search "unzip mismatching "local" filename continuing with "central" filename version" on
// the internet.
//
// I think I see the logic here : the central directory is used to display
// content and the local directory is used to extract the files. Mixing / and \
// may be used to display \ to windows users and use / when extracting the files.
// Unfortunately, this lead also to some issues : http://seclists.org/fulldisclosure/2009/Sep/394
this.fileNameLength = reader.readInt(2);
localExtraFieldsLength = reader.readInt(2); // can't be sure this will be the same as the central dir
this.fileName = reader.readData(this.fileNameLength);
reader.skip(localExtraFieldsLength);
if (this.compressedSize == -1 || this.uncompressedSize == -1) {
throw new Error("Bug or corrupted zip : didn't get enough informations from the central directory " + "(compressedSize == -1 || uncompressedSize == -1)");
}
compression = utils.findCompression(this.compressionMethod);
if (compression === null) { // no compression found
throw new Error("Corrupted zip : compression " + utils.pretty(this.compressionMethod) + " unknown (inner file : " + utils.transformTo("string", this.fileName) + ")");
}
this.decompressed = new CompressedObject();
this.decompressed.compressedSize = this.compressedSize;
this.decompressed.uncompressedSize = this.uncompressedSize;
this.decompressed.crc32 = this.crc32;
this.decompressed.compressionMethod = this.compressionMethod;
this.decompressed.getCompressedContent = this.prepareCompressedContent(reader, reader.index, this.compressedSize, compression);
this.decompressed.getContent = this.prepareContent(reader, reader.index, this.compressedSize, compression, this.uncompressedSize);
// we need to compute the crc32...
if (this.loadOptions.checkCRC32) {
this.decompressed = utils.transformTo("string", this.decompressed.getContent());
if (jszipProto.crc32(this.decompressed) !== this.crc32) {
throw new Error("Corrupted zip : CRC32 mismatch");
}
}
},
/**
* Read the central part of a zip file and add the info in this object.
* @param {DataReader} reader the reader to use.
*/
readCentralPart: function(reader) {
this.versionMadeBy = reader.readInt(2);
this.versionNeeded = reader.readInt(2);
this.bitFlag = reader.readInt(2);
this.compressionMethod = reader.readString(2);
this.date = reader.readDate();
this.crc32 = reader.readInt(4);
this.compressedSize = reader.readInt(4);
this.uncompressedSize = reader.readInt(4);
this.fileNameLength = reader.readInt(2);
this.extraFieldsLength = reader.readInt(2);
this.fileCommentLength = reader.readInt(2);
this.diskNumberStart = reader.readInt(2);
this.internalFileAttributes = reader.readInt(2);
this.externalFileAttributes = reader.readInt(4);
this.localHeaderOffset = reader.readInt(4);
if (this.isEncrypted()) {
throw new Error("Encrypted zip are not supported");
}
this.fileName = reader.readData(this.fileNameLength);
this.readExtraFields(reader);
this.parseZIP64ExtraField(reader);
this.fileComment = reader.readData(this.fileCommentLength);
},
/**
* Parse the external file attributes and get the unix/dos permissions.
*/
processAttributes: function () {
this.unixPermissions = null;
this.dosPermissions = null;
var madeBy = this.versionMadeBy >> 8;
// Check if we have the DOS directory flag set.
// We look for it in the DOS and UNIX permissions
// but some unknown platform could set it as a compatibility flag.
this.dir = this.externalFileAttributes & 0x0010 ? true : false;
if(madeBy === MADE_BY_DOS) {
// first 6 bits (0 to 5)
this.dosPermissions = this.externalFileAttributes & 0x3F;
}
if(madeBy === MADE_BY_UNIX) {
this.unixPermissions = (this.externalFileAttributes >> 16) & 0xFFFF;
// the octal permissions are in (this.unixPermissions & 0x01FF).toString(8);
}
// fail safe : if the name ends with a / it probably means a folder
if (!this.dir && this.fileNameStr.slice(-1) === '/') {
this.dir = true;
}
},
/**
* Parse the ZIP64 extra field and merge the info in the current ZipEntry.
* @param {DataReader} reader the reader to use.
*/
parseZIP64ExtraField: function(reader) {
if (!this.extraFields[0x0001]) {
return;
}
// should be something, preparing the extra reader
var extraReader = new StringReader(this.extraFields[0x0001].value);
// I really hope that these 64bits integer can fit in 32 bits integer, because js
// won't let us have more.
if (this.uncompressedSize === utils.MAX_VALUE_32BITS) {
this.uncompressedSize = extraReader.readInt(8);
}
if (this.compressedSize === utils.MAX_VALUE_32BITS) {
this.compressedSize = extraReader.readInt(8);
}
if (this.localHeaderOffset === utils.MAX_VALUE_32BITS) {
this.localHeaderOffset = extraReader.readInt(8);
}
if (this.diskNumberStart === utils.MAX_VALUE_32BITS) {
this.diskNumberStart = extraReader.readInt(4);
}
},
/**
* Read the central part of a zip file and add the info in this object.
* @param {DataReader} reader the reader to use.
*/
readExtraFields: function(reader) {
var start = reader.index,
extraFieldId,
extraFieldLength,
extraFieldValue;
this.extraFields = this.extraFields || {};
while (reader.index < start + this.extraFieldsLength) {
extraFieldId = reader.readInt(2);
extraFieldLength = reader.readInt(2);
extraFieldValue = reader.readString(extraFieldLength);
this.extraFields[extraFieldId] = {
id: extraFieldId,
length: extraFieldLength,
value: extraFieldValue
};
}
},
/**
* Apply an UTF8 transformation if needed.
*/
handleUTF8: function() {
var decodeParamType = support.uint8array ? "uint8array" : "array";
if (this.useUTF8()) {
this.fileNameStr = jszipProto.utf8decode(this.fileName);
this.fileCommentStr = jszipProto.utf8decode(this.fileComment);
} else {
var upath = this.findExtraFieldUnicodePath();
if (upath !== null) {
this.fileNameStr = upath;
} else {
var fileNameByteArray = utils.transformTo(decodeParamType, this.fileName);
this.fileNameStr = this.loadOptions.decodeFileName(fileNameByteArray);
}
var ucomment = this.findExtraFieldUnicodeComment();
if (ucomment !== null) {
this.fileCommentStr = ucomment;
} else {
var commentByteArray = utils.transformTo(decodeParamType, this.fileComment);
this.fileCommentStr = this.loadOptions.decodeFileName(commentByteArray);
}
}
},
/**
* Find the unicode path declared in the extra field, if any.
* @return {String} the unicode path, null otherwise.
*/
findExtraFieldUnicodePath: function() {
var upathField = this.extraFields[0x7075];
if (upathField) {
var extraReader = new StringReader(upathField.value);
// wrong version
if (extraReader.readInt(1) !== 1) {
return null;
}
// the crc of the filename changed, this field is out of date.
if (jszipProto.crc32(this.fileName) !== extraReader.readInt(4)) {
return null;
}
return jszipProto.utf8decode(extraReader.readString(upathField.length - 5));
}
return null;
},
/**
* Find the unicode comment declared in the extra field, if any.
* @return {String} the unicode comment, null otherwise.
*/
findExtraFieldUnicodeComment: function() {
var ucommentField = this.extraFields[0x6375];
if (ucommentField) {
var extraReader = new StringReader(ucommentField.value);
// wrong version
if (extraReader.readInt(1) !== 1) {
return null;
}
// the crc of the comment changed, this field is out of date.
if (jszipProto.crc32(this.fileComment) !== extraReader.readInt(4)) {
return null;
}
return jszipProto.utf8decode(extraReader.readString(ucommentField.length - 5));
}
return null;
}
};
module.exports = ZipEntry;

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vendors/jszip/package.json vendored Normal file
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{
"name": "jszip",
"version": "2.6.0",
"author": "Stuart Knightley <stuart@stuartk.com>",
"description": "Create, read and edit .zip files with Javascript http://stuartk.com/jszip",
"scripts": {
"test": "npm run test-node && npm run test-browser",
"test-node": "cd test && qunit -c node.js -t test.js",
"test-browser": "grunt build && grunt test",
"lint": "grunt jshint"
},
"contributors": [
{
"name": "Franz Buchinger"
},
{
"name": "António Afonso"
},
{
"name": "David Duponchel"
},
{
"name": "yiminghe"
}
],
"main": "./lib/index",
"repository": {
"type": "git",
"url": "https://github.com/Stuk/jszip.git"
},
"keywords": [
"zip",
"deflate",
"inflate"
],
"devDependencies": {
"qunit": "^0.7.6",
"grunt": "~0.4.1",
"grunt-cli": "~0.1.9",
"grunt-saucelabs": "~8.6.1",
"grunt-contrib-connect": "~0.11.2",
"jshint": "~2.8.0",
"browserify": "~11.2.0",
"grunt-browserify": "~4.0.1",
"grunt-contrib-jshint": "~0.11.3",
"grunt-contrib-uglify": "~0.9.2",
"jszip-utils": "~0.0.2"
},
"dependencies": {
"pako": "~1.0.0"
},
"license": "(MIT OR GPL-3.0)"
}

247
vendors/jszip/vendor/FileSaver.js vendored Normal file
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/*! FileSaver.js
* A saveAs() FileSaver implementation.
* 2014-01-24
*
* By Eli Grey, http://eligrey.com
* License: X11/MIT
* See LICENSE.md
*/
/*global self */
/*jslint bitwise: true, indent: 4, laxbreak: true, laxcomma: true, smarttabs: true, plusplus: true */
/*! @source http://purl.eligrey.com/github/FileSaver.js/blob/master/FileSaver.js */
var saveAs = saveAs
// IE 10+ (native saveAs)
|| (typeof navigator !== "undefined" &&
navigator.msSaveOrOpenBlob && navigator.msSaveOrOpenBlob.bind(navigator))
// Everyone else
|| (function(view) {
"use strict";
// IE <10 is explicitly unsupported
if (typeof navigator !== "undefined" &&
/MSIE [1-9]\./.test(navigator.userAgent)) {
return;
}
var
doc = view.document
// only get URL when necessary in case BlobBuilder.js hasn't overridden it yet
, get_URL = function() {
return view.URL || view.webkitURL || view;
}
, URL = view.URL || view.webkitURL || view
, save_link = doc.createElementNS("http://www.w3.org/1999/xhtml", "a")
, can_use_save_link = !view.externalHost && "download" in save_link
, click = function(node) {
var event = doc.createEvent("MouseEvents");
event.initMouseEvent(
"click", true, false, view, 0, 0, 0, 0, 0
, false, false, false, false, 0, null
);
node.dispatchEvent(event);
}
, webkit_req_fs = view.webkitRequestFileSystem
, req_fs = view.requestFileSystem || webkit_req_fs || view.mozRequestFileSystem
, throw_outside = function(ex) {
(view.setImmediate || view.setTimeout)(function() {
throw ex;
}, 0);
}
, force_saveable_type = "application/octet-stream"
, fs_min_size = 0
, deletion_queue = []
, process_deletion_queue = function() {
var i = deletion_queue.length;
while (i--) {
var file = deletion_queue[i];
if (typeof file === "string") { // file is an object URL
URL.revokeObjectURL(file);
} else { // file is a File
file.remove();
}
}
deletion_queue.length = 0; // clear queue
}
, dispatch = function(filesaver, event_types, event) {
event_types = [].concat(event_types);
var i = event_types.length;
while (i--) {
var listener = filesaver["on" + event_types[i]];
if (typeof listener === "function") {
try {
listener.call(filesaver, event || filesaver);
} catch (ex) {
throw_outside(ex);
}
}
}
}
, FileSaver = function(blob, name) {
// First try a.download, then web filesystem, then object URLs
var
filesaver = this
, type = blob.type
, blob_changed = false
, object_url
, target_view
, get_object_url = function() {
var object_url = get_URL().createObjectURL(blob);
deletion_queue.push(object_url);
return object_url;
}
, dispatch_all = function() {
dispatch(filesaver, "writestart progress write writeend".split(" "));
}
// on any filesys errors revert to saving with object URLs
, fs_error = function() {
// don't create more object URLs than needed
if (blob_changed || !object_url) {
object_url = get_object_url(blob);
}
if (target_view) {
target_view.location.href = object_url;
} else {
window.open(object_url, "_blank");
}
filesaver.readyState = filesaver.DONE;
dispatch_all();
}
, abortable = function(func) {
return function() {
if (filesaver.readyState !== filesaver.DONE) {
return func.apply(this, arguments);
}
};
}
, create_if_not_found = {create: true, exclusive: false}
, slice
;
filesaver.readyState = filesaver.INIT;
if (!name) {
name = "download";
}
if (can_use_save_link) {
object_url = get_object_url(blob);
// FF for Android has a nasty garbage collection mechanism
// that turns all objects that are not pure javascript into 'deadObject'
// this means `doc` and `save_link` are unusable and need to be recreated
// `view` is usable though:
doc = view.document;
save_link = doc.createElementNS("http://www.w3.org/1999/xhtml", "a");
save_link.href = object_url;
save_link.download = name;
var event = doc.createEvent("MouseEvents");
event.initMouseEvent(
"click", true, false, view, 0, 0, 0, 0, 0
, false, false, false, false, 0, null
);
save_link.dispatchEvent(event);
filesaver.readyState = filesaver.DONE;
dispatch_all();
return;
}
// Object and web filesystem URLs have a problem saving in Google Chrome when
// viewed in a tab, so I force save with application/octet-stream
// http://code.google.com/p/chromium/issues/detail?id=91158
if (view.chrome && type && type !== force_saveable_type) {
slice = blob.slice || blob.webkitSlice;
blob = slice.call(blob, 0, blob.size, force_saveable_type);
blob_changed = true;
}
// Since I can't be sure that the guessed media type will trigger a download
// in WebKit, I append .download to the filename.
// https://bugs.webkit.org/show_bug.cgi?id=65440
if (webkit_req_fs && name !== "download") {
name += ".download";
}
if (type === force_saveable_type || webkit_req_fs) {
target_view = view;
}
if (!req_fs) {
fs_error();
return;
}
fs_min_size += blob.size;
req_fs(view.TEMPORARY, fs_min_size, abortable(function(fs) {
fs.root.getDirectory("saved", create_if_not_found, abortable(function(dir) {
var save = function() {
dir.getFile(name, create_if_not_found, abortable(function(file) {
file.createWriter(abortable(function(writer) {
writer.onwriteend = function(event) {
target_view.location.href = file.toURL();
deletion_queue.push(file);
filesaver.readyState = filesaver.DONE;
dispatch(filesaver, "writeend", event);
};
writer.onerror = function() {
var error = writer.error;
if (error.code !== error.ABORT_ERR) {
fs_error();
}
};
"writestart progress write abort".split(" ").forEach(function(event) {
writer["on" + event] = filesaver["on" + event];
});
writer.write(blob);
filesaver.abort = function() {
writer.abort();
filesaver.readyState = filesaver.DONE;
};
filesaver.readyState = filesaver.WRITING;
}), fs_error);
}), fs_error);
};
dir.getFile(name, {create: false}, abortable(function(file) {
// delete file if it already exists
file.remove();
save();
}), abortable(function(ex) {
if (ex.code === ex.NOT_FOUND_ERR) {
save();
} else {
fs_error();
}
}));
}), fs_error);
}), fs_error);
}
, FS_proto = FileSaver.prototype
, saveAs = function(blob, name) {
return new FileSaver(blob, name);
}
;
FS_proto.abort = function() {
var filesaver = this;
filesaver.readyState = filesaver.DONE;
dispatch(filesaver, "abort");
};
FS_proto.readyState = FS_proto.INIT = 0;
FS_proto.WRITING = 1;
FS_proto.DONE = 2;
FS_proto.error =
FS_proto.onwritestart =
FS_proto.onprogress =
FS_proto.onwrite =
FS_proto.onabort =
FS_proto.onerror =
FS_proto.onwriteend =
null;
view.addEventListener("unload", process_deletion_queue, false);
saveAs.unload = function() {
process_deletion_queue();
view.removeEventListener("unload", process_deletion_queue, false);
};
return saveAs;
}(
typeof self !== "undefined" && self
|| typeof window !== "undefined" && window
|| this.content
));
// `self` is undefined in Firefox for Android content script context
// while `this` is nsIContentFrameMessageManager
// with an attribute `content` that corresponds to the window
if (typeof module !== "undefined") module.exports = saveAs;