fix: 更新sdk

libs/jszip-utils/CHANGES.md

@@ -0,0 +1,9 @@
+# v0.1.0 2019-05-12
+- Add support for `progress` callback in an `options` object.
+
+# v0.0.2 2014-05-19
+- Drop the code for xhr on `file://` and fix an issue with `file://` to `http://` requests, see [#3](https://github.com/Stuk/jszip-utils/pull/3).
+
+# v0.0.1 2014-04-27
+ - First release.
+

libs/jszip-utils/Gruntfile.js

@@ -0,0 +1,123 @@
+/*jshint node: true */
+"use strict";
+
+module.exports = function(grunt) {
+  // https://wiki.saucelabs.com/display/DOCS/Platform+Configurator
+  // A lot of the browsers seem to time out with Saucelab's unit testing
+  // framework. Here are the browsers that work that get enough coverage for our
+  // needs.
+  var browsers = [
+    {browserName: "chrome"},
+    {browserName: "firefox", platform: "Linux"},
+    {browserName: "internet explorer"}
+  ];
+
+  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);
+  }
+
+  var postBundleWithLicense = function(err, src, done) {
+    if (!err) {
+      // add the license
+      var license = require('fs').readFileSync('lib/license_header.js');
+      done(err, license + src);
+    } else {
+      done(err);
+    }
+  };
+
+  grunt.initConfig({
+    connect: {
+      server: {
+        options: {
+          base: "",
+          port: 8080
+        }
+      }
+    },
+    'saucelabs-qunit': {
+      all: {
+        options: {
+          urls: ["http://127.0.0.1:8080/test/index.html?hidepassed"],
+          build: process.env.TRAVIS_JOB_ID,
+          testname: "qunit tests",
+          tags: tags,
+          // Tests have statusCheckAttempts * pollInterval seconds to complete
+          pollInterval: 2000,
+          statusCheckAttempts: 15,
+          "max-duration": 30,
+          browsers: browsers,
+          maxRetries: 2
+        }
+      }
+    },
+    jshint: {
+      options: {
+        jshintrc: "./.jshintrc"
+      },
+      all: ['./lib/*.js', "Gruntfile.js"]
+    },
+    browserify: {
+      "utils": {
+        files: {
+          'dist/jszip-utils.js': ['lib/index.js']
+        },
+        options: {
+          standalone: 'JSZipUtils',
+          postBundleCB: postBundleWithLicense
+        }
+      },
+      "utils-ie": {
+        files: {
+          'dist/jszip-utils-ie.js': ['lib/index_IE.js']
+        },
+        options: {
+          postBundleCB: postBundleWithLicense
+        }
+      }
+    },
+    uglify: {
+      options: {
+        report: 'gzip',
+        mangle: true,
+        output: {
+          comments: /^!/
+        }
+      },
+      "jszip-utils": {
+        src: 'dist/jszip-utils.js',
+        dest: 'dist/jszip-utils.min.js'
+      },
+      "jszip-utils-ie": {
+        src: 'dist/jszip-utils-ie.js',
+        dest: 'dist/jszip-utils-ie.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');
+
+  // A task to cause Grunt to sit and wait, keeping the test server running
+  grunt.registerTask("wait", function() {
+    this.async();
+  });
+
+  grunt.registerTask("test-local", ["build", "connect", "wait"]);
+  grunt.registerTask("test-remote", ["build", "connect", "saucelabs-qunit"]);
+
+  if (process.env.SAUCE_USERNAME && process.env.SAUCE_ACCESS_KEY) {
+    grunt.registerTask("test", ["jshint", "test-remote"]);
+  } else {
+    grunt.registerTask("test", ["jshint", "test-local"]);
+  }
+
+  grunt.registerTask("build", ["browserify", "uglify"]);
+  grunt.registerTask("default", ["jshint", "build"]);
+};

libs/jszip-utils/LICENSE.markdown

@@ -0,0 +1,651 @@
+JSZipUtils is dual licensed. You may use it under the MIT license *or* the GPLv3
+license.
+
+The MIT License
+===============
+
+Copyright (c) 2014 Stuart Knightley, David Duponchel
+
+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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+any patent claim is infringed by making, using, selling, offering for
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+
+  11. Patents.
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+  A "contributor" is a copyright holder who authorizes use under this
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+  A contributor's "essential patent claims" are all patent claims
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+  Each contributor grants you a non-exclusive, worldwide, royalty-free
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+  In the following three paragraphs, a "patent license" is any express
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+  If you convey a covered work, knowingly relying on a patent license,
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+  If, pursuant to or in connection with a single transaction or
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+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
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+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
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+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
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+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+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,
+reviewing courts shall apply local law that most closely approximates
+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

libs/jszip-utils/README.markdown

@@ -0,0 +1,30 @@
+JSZipUtils
+==========
+
+A collection of cross-browser utilities to go along with JSZip, see
+http://stuk.github.io/jszip-utils for all the documentation.
+
+It has two parts, one for every browsers and one for IE < 10. To use it :
+
+```html
+<script type="text/javascript" src="dist/jszip-utils.js"></script>
+<!--
+Mandatory in IE 6, 7, 8 and 9.
+-->
+<!--[if IE]>
+<script type="text/javascript" src="dist/jszip-utils-ie.js"></script>
+<![endif]-->
+```
+
+Development
+-----------
+
+Run `npm test` to lint, build, and launch a server at http://localhost:8080/test/ . Open the page in a browser to verify that the tests are passing.
+
+If you have a Saucelabs account set the `SAUCE_USERNAME` and `SAUCE_ACCESS_KEY`environment variables to test remotely.
+
+License
+-------
+
+JSZipUtils is dual-licensed. You may use it under the MIT license *or* the GPLv3
+license. See LICENSE.markdown.

libs/jszip-utils/_config.yml

@@ -0,0 +1,25 @@
+# will be overwritten by github, see https://help.github.com/articles/using-jekyll-with-pages
+safe: true
+lsi: false
+pygments: true
+source: ./
+# /overwritten
+
+baseurl: /jszip-utils
+
+layouts: ./documentation/_layouts
+permalink: none
+exclude: ['bin', 'README.md', 'node_modules']
+
+markdown: redcarpet
+redcarpet:
+    extensions: [
+        'no_intra_emphasis',
+        'fenced_code_blocks',
+        'autolink',
+        'strikethrough',
+        'superscript',
+        'with_toc_data',
+        'tables',
+        'hardwrap'
+    ]

libs/jszip-utils/bower.json

@@ -0,0 +1,26 @@
+{
+  "name": "jszip-utils",
+  "version": "0.1.0",
+  "homepage": "https://github.com/Stuk/jszip-utils",
+  "authors": [
+    "Stuart Knightley <stuart@stuartk.com>",
+    "David Duponchel <d.duponchel@gmail.com>"
+  ],
+  "description": "A collection of cross-browser utilities to go along with JSZip.",
+  "main": "dist/jszip-utils.js",
+  "keywords": [
+    "JSZip",
+    "ajax",
+    "cross browser",
+    "IE",
+    "Internet Explorer"
+  ],
+  "license": "MIT or GPLv3",
+  "ignore": [
+    "**/.*",
+    "node_modules",
+    "bower_components",
+    "test",
+    "tests"
+  ]
+}

libs/jszip-utils/component.json

@@ -0,0 +1,18 @@
+{
+  "name": "jszip-utils",
+  "repo": "Stuk/jszip-utils",
+  "description": "A collection of cross-browser utilities to go along with JSZip.",
+  "version": "0.1.0",
+  "keywords": [
+    "JSZip",
+    "ajax",
+    "cross browser",
+    "IE",
+    "Internet Explorer"
+  ],
+  "main": "dist/jszip-utils.js",
+  "license": "MIT or GPLv3",
+  "scripts": [
+    "dist/jszip-utils.js"
+  ]
+}

libs/jszip-utils/dist/jszip-utils-ie.js

@@ -0,0 +1,56 @@
+/*@preserve
+
+JSZipUtils - A collection of cross-browser utilities to go along with JSZip.
+<http://stuk.github.io/jszip-utils>
+
+(c) 2014-2019 Stuart Knightley, David Duponchel
+Dual licenced under the MIT license or GPLv3. See https://raw.github.com/Stuk/jszip-utils/master/LICENSE.markdown.
+
+*/
+;(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+var global=typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {};/* jshint evil: true, newcap: false */
+/* global IEBinaryToArray_ByteStr, IEBinaryToArray_ByteStr_Last */
+"use strict";
+
+// Adapted from http://stackoverflow.com/questions/1095102/how-do-i-load-binary-image-data-using-javascript-and-xmlhttprequest
+var IEBinaryToArray_ByteStr_Script =
+    "<!-- IEBinaryToArray_ByteStr -->\r\n"+
+    "<script type='text/vbscript'>\r\n"+
+    "Function IEBinaryToArray_ByteStr(Binary)\r\n"+
+    "   IEBinaryToArray_ByteStr = CStr(Binary)\r\n"+
+    "End Function\r\n"+
+    "Function IEBinaryToArray_ByteStr_Last(Binary)\r\n"+
+    "   Dim lastIndex\r\n"+
+    "   lastIndex = LenB(Binary)\r\n"+
+    "   if lastIndex mod 2 Then\r\n"+
+    "       IEBinaryToArray_ByteStr_Last = Chr( AscB( MidB( Binary, lastIndex, 1 ) ) )\r\n"+
+    "   Else\r\n"+
+    "       IEBinaryToArray_ByteStr_Last = "+'""'+"\r\n"+
+    "   End If\r\n"+
+    "End Function\r\n"+
+    "</script>\r\n";
+
+// inject VBScript
+document.write(IEBinaryToArray_ByteStr_Script);
+
+global.JSZipUtils._getBinaryFromXHR = function (xhr) {
+    var binary = xhr.responseBody;
+    var byteMapping = {};
+    for ( var i = 0; i < 256; i++ ) {
+        for ( var j = 0; j < 256; j++ ) {
+            byteMapping[ String.fromCharCode( i + (j << 8) ) ] =
+                String.fromCharCode(i) + String.fromCharCode(j);
+        }
+    }
+    var rawBytes = IEBinaryToArray_ByteStr(binary);
+    var lastChr = IEBinaryToArray_ByteStr_Last(binary);
+    return rawBytes.replace(/[\s\S]/g, function( match ) {
+        return byteMapping[match];
+    }) + lastChr;
+};
+
+// enforcing Stuk's coding style
+// vim: set shiftwidth=4 softtabstop=4:
+
+},{}]},{},[1])
+;

libs/jszip-utils/documentation/_layouts/default.html

@@ -0,0 +1,86 @@
+<!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="A collection of cross-browser utilities to go along with JSZip." />
+    <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-utils.js"></script>
+    <!--
+    Mandatory in IE 6, 7, 8 and 9.
+    -->
+    <!--[if IE]>
+    <script type="text/javascript" src="{{site.baseurl}}/dist/jszip-utils-ie.js"></script>
+    <![endif]-->
+  </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>ZipUtils</a>
+          </div>
+          <ul class="nav navbar-nav">
+            <li {% if page.section == "api" %}class="active"{% endif %}>
+              <a href="{{site.baseurl}}/documentation/api.html">API</a>
+            </li>
+          </ul>
+          <ul class="nav navbar-nav navbar-right">
+            <li>
+              <a href="https://github.com/Stuk/jszip-utils">current version : <strong>v0.1.0</strong></a>
+            </li>
+          </ul>
+        </div>
+      </div>
+      <div class="row">
+        <nav class="{% if page.section %}col-md-3{% endif %}">
+        {% if page.section == "api" %}
+        <!-- <h4>Documentation</h4> -->
+        <ul class="nav">
+          <li><a href="{{site.baseurl}}/documentation/api.html">JSZipUtils</a>
+            <ul>
+              <li><a href="{{site.baseurl}}/documentation/api/getbinarycontent.html">getBinaryContent(path, callback)</a></li>
+            </ul>
+          </li>
+        </ul>
+        {% endif %}
+        </nav>
+        <div class="{% if page.section %}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>
+  </body>
+</html>

libs/jszip-utils/documentation/api.md

@@ -0,0 +1,6 @@
+---
+title: "JSZipUtils"
+layout: default
+section: api
+---
+This section contains the documentation of the different functions.

libs/jszip-utils/documentation/api/getbinarycontent.md

@@ -0,0 +1,85 @@
+---
+title: "getBinaryContent(path, callback)"
+layout: default
+section: api
+---
+
+__Description__ : Use an AJAX call to fetch a file (HTTP GET) on the server
+that served the file. Cross domain requests will work if the browser support
+[them](http://caniuse.com/cors) but only if the server send the
+[right headers](https://developer.mozilla.org/en-US/docs/HTTP/Access_control_CORS).
+This function doesn't follow redirects: currently only `200 OK` are accepted.
+
+__Arguments__
+
+name     | type               | description
+---------|--------------------|------------
+path     | String             | the path to the resource to GET.
+options  | function or object | A callback function or options object.
+
+The options object has a required `callback` function property and an optional `progress` function property.
+
+The `callback` function has the following signature: `function (err, data) {...}` :
+
+name | type               | description
+-----|--------------------|------------
+err  | Error              | the error, if any.
+data | ArrayBuffer/String | the data in a format suitable for JSZip.
+
+The `progress` function has the following signature: `function (event) {...}`, where `event` has the following properties:
+
+name    | type               | description
+--------|--------------------|------------
+path    | string             | The path of the file being loaded.
+loaded  | number             | the amount of data currently transfered.
+total   | number             | the total amount of data to be transferred.
+percent | number             | the percent of data currently transfered.
+
+The data can be parsed by [JSZip#load](http://stuk.github.io/jszip/#doc_load_data_options)
+or used with [JSZip#file](http://stuk.github.io/jszip/#doc_file_name_data_options)
+to add a new file. With `JSZip#file` use `{binary:true}` as options.
+
+__Returns__ : Nothing.
+
+__Throws__ : Nothing.
+
+<!--
+__Complexity__ : **O(1)** everywhere but on IE <=9, **O(n)** on IE <=9, n being
+the length of the fetched data.
+-->
+
+__Example__
+
+```js
+// loading a zip file
+JSZipUtils.getBinaryContent("path/to/file.zip", function (err, data) {
+   if(err) {
+      throw err; // or handle the error
+   }
+   var zip = new JSZip(data);
+});
+
+// loading a file and add it in a zip file
+JSZipUtils.getBinaryContent("path/to/picture.png", function (err, data) {
+   if(err) {
+      throw err; // or handle the error
+   }
+   var zip = new JSZip();
+   zip.file("picture.png", data, {binary:true});
+});
+
+// loading a zip file with a progress callback
+JSZipUtils.getBinaryContent("path/to/file.zip", {
+    progress: function (event) {
+        console.log(event.percent + "% of " + event.path+ " loaded")
+    },
+    callback: function (err, data) {
+        if(err) {
+           throw err; // or handle the error
+        }
+        var zip = new JSZip(data);
+    }
+});
+```
+
+

libs/jszip-utils/documentation/css/main.css

@@ -0,0 +1,7 @@
+ul.nav ul {
+  list-style:none;
+  margin: 0;
+  padding: 0 0 0 25px;
+}
+
+

libs/jszip-utils/documentation/css/pygments.css

@@ -0,0 +1,64 @@
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+ * pygmentize -S default -f html > pygments.css
+ */
+.hll { background-color: #ffffcc }
+.c { color: #408080; font-style: italic } /* Comment */
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libs/jszip-utils/index.md

@@ -0,0 +1,25 @@
+---
+title: JSZipUtils
+layout: default
+---
+
+A collection of cross-browser utilities to go along with JSZip, see
+http://stuk.github.io/jszip-utils for all the documentation.
+
+It has two parts, one for every browsers and one for IE < 10. To use it :
+
+```html
+<script type="text/javascript" src="dist/jszip-utils.js"></script>
+<!--
+Mandatory in IE 6, 7, 8 and 9.
+-->
+<!--[if IE]>
+<script type="text/javascript" src="dist/jszip-utils-ie.js"></script>
+<![endif]-->
+```
+
+License
+-------
+
+JSZipUtils is dual-licensed. You may use it under the MIT license *or* the GPLv3
+license. See LICENSE.markdown.

libs/jszip-utils/lib/index.js

@@ -0,0 +1,145 @@
+'use strict';
+/*globals Promise */
+
+var JSZipUtils = {};
+// just use the responseText with xhr1, response with xhr2.
+// The transformation doesn't throw away high-order byte (with responseText)
+// because JSZip handles that case. If not used with JSZip, you may need to
+// do it, see https://developer.mozilla.org/En/Using_XMLHttpRequest#Handling_binary_data
+JSZipUtils._getBinaryFromXHR = function (xhr) {
+    // for xhr.responseText, the 0xFF mask is applied by JSZip
+    return xhr.response || xhr.responseText;
+};
+
+// taken from jQuery
+function createStandardXHR() {
+    try {
+        return new window.XMLHttpRequest();
+    } catch( e ) {}
+}
+
+function createActiveXHR() {
+    try {
+        return new window.ActiveXObject("Microsoft.XMLHTTP");
+    } catch( e ) {}
+}
+
+// Create the request object
+var createXHR = (typeof window !== "undefined" && window.ActiveXObject) ?
+    /* Microsoft failed to properly
+     * implement the XMLHttpRequest in IE7 (can't request local files),
+     * so we use the ActiveXObject when it is available
+     * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
+     * we need a fallback.
+     */
+    function() {
+    return createStandardXHR() || createActiveXHR();
+} :
+    // For all other browsers, use the standard XMLHttpRequest object
+    createStandardXHR;
+
+
+/**
+ * @param  {string} path    The path to the resource to GET.
+ * @param  {function|{callback: function, progress: function}} options
+ * @return {Promise|undefined} If no callback is passed then a promise is returned
+ */
+JSZipUtils.getBinaryContent = function (path, options) {
+    var promise, resolve, reject;
+    var callback;
+
+    if (!options) {
+        options = {};
+    }
+
+    // backward compatible callback
+    if (typeof options === "function") {
+        callback = options;
+        options = {};
+    } else if (typeof options.callback === 'function') {
+        // callback inside options object
+        callback = options.callback;
+    }
+
+    if (!callback && typeof Promise !== "undefined") {
+        promise = new Promise(function (_resolve, _reject) {
+            resolve = _resolve;
+            reject = _reject;
+        });
+    } else {
+        resolve = function (data) { callback(null, data); };
+        reject = function (err) { callback(err, null); };
+    }
+
+    /*
+     * Here is the tricky part : getting the data.
+     * In firefox/chrome/opera/... setting the mimeType to 'text/plain; charset=x-user-defined'
+     * is enough, the result is in the standard xhr.responseText.
+     * cf https://developer.mozilla.org/En/XMLHttpRequest/Using_XMLHttpRequest#Receiving_binary_data_in_older_browsers
+     * In IE <= 9, we must use (the IE only) attribute responseBody
+     * (for binary data, its content is different from responseText).
+     * In IE 10, the 'charset=x-user-defined' trick doesn't work, only the
+     * responseType will work :
+     * http://msdn.microsoft.com/en-us/library/ie/hh673569%28v=vs.85%29.aspx#Binary_Object_upload_and_download
+     *
+     * I'd like to use jQuery to avoid this XHR madness, but it doesn't support
+     * the responseType attribute : http://bugs.jquery.com/ticket/11461
+     */
+    try {
+        var xhr = createXHR();
+
+        xhr.open('GET', path, true);
+
+        // recent browsers
+        if ("responseType" in xhr) {
+            xhr.responseType = "arraybuffer";
+        }
+
+        // older browser
+        if(xhr.overrideMimeType) {
+            xhr.overrideMimeType("text/plain; charset=x-user-defined");
+        }
+
+        xhr.onreadystatechange = function (event) {
+            // use `xhr` and not `this`... thanks IE
+            if (xhr.readyState === 4) {
+                if (xhr.status === 200 || xhr.status === 0) {
+                    try {
+                        resolve(JSZipUtils._getBinaryFromXHR(xhr));
+                    } catch(err) {
+                        reject(new Error(err));
+                    }
+                } else {
+                    reject(new Error("Ajax error for " + path + " : " + this.status + " " + this.statusText));
+                }
+            }
+        };
+
+        if(options.progress) {
+            xhr.onprogress = function(e) {
+                options.progress({
+                    path: path,
+                    originalEvent: e,
+                    percent: e.loaded / e.total * 100,
+                    loaded: e.loaded,
+                    total: e.total
+                });
+            };
+        }
+
+        xhr.send();
+
+    } catch (e) {
+        reject(new Error(e), null);
+    }
+
+    // returns a promise or undefined depending on whether a callback was
+    // provided
+    return promise;
+};
+
+// export
+module.exports = JSZipUtils;
+
+// enforcing Stuk's coding style
+// vim: set shiftwidth=4 softtabstop=4:

libs/jszip-utils/lib/index_IE.js

@@ -0,0 +1,43 @@
+/* jshint evil: true, newcap: false */
+/* global IEBinaryToArray_ByteStr, IEBinaryToArray_ByteStr_Last */
+"use strict";
+
+// Adapted from http://stackoverflow.com/questions/1095102/how-do-i-load-binary-image-data-using-javascript-and-xmlhttprequest
+var IEBinaryToArray_ByteStr_Script =
+    "<!-- IEBinaryToArray_ByteStr -->\r\n"+
+    "<script type='text/vbscript'>\r\n"+
+    "Function IEBinaryToArray_ByteStr(Binary)\r\n"+
+    "   IEBinaryToArray_ByteStr = CStr(Binary)\r\n"+
+    "End Function\r\n"+
+    "Function IEBinaryToArray_ByteStr_Last(Binary)\r\n"+
+    "   Dim lastIndex\r\n"+
+    "   lastIndex = LenB(Binary)\r\n"+
+    "   if lastIndex mod 2 Then\r\n"+
+    "       IEBinaryToArray_ByteStr_Last = Chr( AscB( MidB( Binary, lastIndex, 1 ) ) )\r\n"+
+    "   Else\r\n"+
+    "       IEBinaryToArray_ByteStr_Last = "+'""'+"\r\n"+
+    "   End If\r\n"+
+    "End Function\r\n"+
+    "</script>\r\n";
+
+// inject VBScript
+document.write(IEBinaryToArray_ByteStr_Script);
+
+global.JSZipUtils._getBinaryFromXHR = function (xhr) {
+    var binary = xhr.responseBody;
+    var byteMapping = {};
+    for ( var i = 0; i < 256; i++ ) {
+        for ( var j = 0; j < 256; j++ ) {
+            byteMapping[ String.fromCharCode( i + (j << 8) ) ] =
+                String.fromCharCode(i) + String.fromCharCode(j);
+        }
+    }
+    var rawBytes = IEBinaryToArray_ByteStr(binary);
+    var lastChr = IEBinaryToArray_ByteStr_Last(binary);
+    return rawBytes.replace(/[\s\S]/g, function( match ) {
+        return byteMapping[match];
+    }) + lastChr;
+};
+
+// enforcing Stuk's coding style
+// vim: set shiftwidth=4 softtabstop=4:

libs/jszip-utils/lib/license_header.js

@@ -0,0 +1,9 @@
+/*@preserve
+
+JSZipUtils - A collection of cross-browser utilities to go along with JSZip.
+<http://stuk.github.io/jszip-utils>
+
+(c) 2014-2019 Stuart Knightley, David Duponchel
+Dual licenced under the MIT license or GPLv3. See https://raw.github.com/Stuk/jszip-utils/master/LICENSE.markdown.
+
+*/

libs/jszip-utils/package.json

@@ -0,0 +1,42 @@
+{
+  "name": "jszip-utils",
+  "version": "0.1.0",
+  "author": "Stuart Knightley <stuart@stuartk.com>",
+  "description": "A collection of cross-browser utilities to go along with JSZip.",
+  "scripts": {
+    "test": "npm run test-browser",
+    "test-browser": "grunt build && grunt test",
+    "lint": "grunt jshint"
+  },
+  "main": "./lib/index",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Stuk/jszip-utils.git"
+  },
+  "contributors": [
+    {
+      "name": "David Duponchel"
+    }
+  ],
+  "keywords": [
+    "JSZip",
+    "ajax",
+    "cross browser",
+    "IE",
+    "Internet Explorer"
+  ],
+  "devDependencies": {
+    "browserify": "~2.35.0",
+    "grunt": "~0.4.1",
+    "grunt-browserify": "~1.3.0",
+    "grunt-cli": "~0.1.9",
+    "grunt-contrib-connect": "~2.0.0",
+    "grunt-contrib-jshint": "~0.6.4",
+    "grunt-contrib-uglify": "~4.0.1",
+    "grunt-saucelabs": "Stuk/grunt-saucelabs#v10.0.0",
+    "jshint": "~2.1.11",
+    "qunit": "~2.9.2",
+    "qunitjs": "2.0.1"
+  },
+  "license": "(MIT OR GPL-3.0)"
+}

libs/jszip-utils/test/index.html

@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<html>
+   <head>
+      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+      <title>JSZip Testing</title>
+      <link media="screen" href="../node_modules/qunit/qunit/qunit.css" type="text/css" rel="stylesheet">
+      <script type="text/javascript" src="../node_modules/qunit/qunit/qunit.js"></script>
+
+      <script type="text/javascript">
+        // Exposes test results for Saucelabs. See
+        // https://wiki.saucelabs.com/display/DOCS/Setting+Up+JavaScript+Unit+Testing+Frameworks
+        (function () {
+          var log = [];
+          var testName;
+
+          QUnit.done(function (test_results) {
+            var tests = [];
+            for(var i = 0, len = log.length; i < len; i++) {
+              var details = log[i];
+              tests.push({
+                name: details.name,
+                result: details.result,
+                message: details.message,
+                duration: details.runtime
+              });
+            }
+            test_results.tests = tests;
+            test_results.duration = test_results.runtime;
+
+            window.global_test_results = test_results;
+          });
+          QUnit.log(function(details){
+              log.push(details);
+          });
+        })()
+      </script>
+
+      <script type="text/javascript" src="../dist/jszip-utils.js"></script>
+      <!--
+      Mandatory in IE 6, 7, 8 and 9.
+      -->
+      <!--[if IE]>
+      <script type="text/javascript" src="../dist/jszip-utils-ie.js"></script>
+      <![endif]-->
+
+      <script type="text/javascript" src="test.js"></script>
+
+   </head>
+   <body>
+      <div id="qunit"></div>
+      <div id="qunit-fixture"></div>
+   </body>
+</html>
+<!-- enforcing Stuk's coding style -->
+<!-- vim: set shiftwidth=4 softtabstop=4 foldmethod=marker: -->

libs/jszip-utils/test/ref/amount.txt

@@ -0,0 +1 @@
+€15

libs/jszip-utils/test/test.js

@@ -0,0 +1,226 @@
+'use strict';
+
+/**
+ * This is an helper function to transform the input into a binary string.
+ * The transformation is normaly handled by JSZip.
+ * @param {String|ArrayBuffer} input the input to convert.
+ * @return {String} the binary string.
+ */
+function toString(input) {
+    var result = "",
+        i, len, isArray = (typeof input !== "string");
+
+    if (isArray) {
+        input = new Uint8Array(input);
+    }
+
+    for (i = 0, len = input.length; i < len; i++) {
+        result += String.fromCharCode(
+            (isArray ? input[i] : input.charCodeAt(i)) % 0xFF
+        );
+    }
+
+    return result;
+}
+
+QUnit.module("callback");
+
+QUnit.test("JSZipUtils.getBinaryContent, text, 200 OK", function (assert) {
+    var done = assert.async();
+    var p = JSZipUtils.getBinaryContent("ref/amount.txt", function (err, data) {
+        assert.equal(err, null, "no error");
+        assert.equal(toString(data), "\xe2\x82\xac\x31\x35\x0a", "The content has been fetched");
+        done();
+    });
+    assert.strictEqual(p, undefined, 'not return promise');
+});
+
+QUnit.test("JSZipUtils.getBinaryContent, image, 200 OK", function (assert) {
+    var done = assert.async();
+    var p = JSZipUtils.getBinaryContent("ref/smile.gif", function (err, data) {
+        assert.equal(err, null, "no error");
+        assert.equal(toString(data).indexOf("\x47\x49\x46\x38\x37\x61"), 0, "The content has been fetched");
+        done();
+    });
+    assert.strictEqual(p, undefined, 'not return promise');
+});
+
+QUnit.test("JSZipUtils.getBinaryContent, 404 NOT FOUND", function (assert) {
+    var done = assert.async();
+    var p = JSZipUtils.getBinaryContent("ref/nothing", function (err, data) {
+        assert.equal(data, null, "no error");
+        assert.ok(err instanceof Error, "The error is an Error");
+        done();
+    });
+    assert.strictEqual(p, undefined, 'not return promise');
+});
+
+
+
+QUnit.module("options={callback}");
+
+QUnit.test("JSZipUtils.getBinaryContent, text, 200 OK", function (assert) {
+    var done = assert.async();
+    var p = JSZipUtils.getBinaryContent("ref/amount.txt", {
+        callback: function (err, data) {
+            assert.equal(err, null, "no error");
+            assert.equal(toString(data), "\xe2\x82\xac\x31\x35\x0a", "The content has been fetched");
+            done();
+        }
+    });
+    assert.strictEqual(p, undefined, 'not return promise');
+});
+
+QUnit.test("JSZipUtils.getBinaryContent, image, 200 OK", function (assert) {
+    var done = assert.async();
+    var p = JSZipUtils.getBinaryContent("ref/smile.gif", {
+        callback: function (err, data) {
+            assert.equal(err, null, "no error");
+            assert.equal(toString(data).indexOf("\x47\x49\x46\x38\x37\x61"), 0, "The content has been fetched");
+            done();
+        }
+    });
+    assert.strictEqual(p, undefined, 'not return promise');
+});
+
+QUnit.test("JSZipUtils.getBinaryContent, 404 NOT FOUND", function (assert) {
+    var done = assert.async();
+    var p = JSZipUtils.getBinaryContent("ref/nothing", {
+        callback: function (err, data) {
+            assert.equal(data, null, "no error");
+            assert.ok(err instanceof Error, "The error is an Error");
+            done();
+        }
+    });
+    assert.strictEqual(p, undefined, 'not return promise');
+});
+
+// Guard Promise tests for IE
+if (typeof Promise === "undefined") {
+    QUnit.module("Promises");
+    QUnit.skip("Skipping promise tests");
+} else {
+    QUnit.module("Promise (no parameters)");
+
+    QUnit.test("JSZipUtils.getBinaryContent amount, text, 200 OK", function (assert) {
+        var done = assert.async();
+        JSZipUtils.getBinaryContent("ref/amount.txt").then(function (data) {
+                assert.equal(toString(data), "\xe2\x82\xac\x31\x35\x0a", "The content has been fetched");
+                done();
+            })
+            .catch(function (err) {
+                assert.equal(err, null, "no error");
+                done();
+            });
+    });
+
+    QUnit.test("JSZipUtils.getBinaryContent smile, image, 200 OK", function (assert) {
+        var done = assert.async();
+        JSZipUtils.getBinaryContent("ref/smile.gif").then(function (data) {
+            assert.equal(toString(data).indexOf("\x47\x49\x46\x38\x37\x61"), 0, "The content has been fetched");
+            done();
+        }).catch(function (err) {
+            assert.equal(err, null, "no error");
+            done();
+        });
+    });
+
+    QUnit.test("JSZipUtils.getBinaryContent nothing, 404 NOT FOUND", function (assert) {
+        var done = assert.async();
+        JSZipUtils.getBinaryContent("ref/nothing").then(function (data) {
+            assert.equal(data, null, "no error");
+            done();
+        }).catch(function (err) {
+            assert.ok(err instanceof Error, "The error is an Error");
+            done();
+        });
+    });
+
+    QUnit.module("Promise, options={}");
+
+    QUnit.test("JSZipUtils.getBinaryContent amount, text, 200 OK", function (assert) {
+        var done = assert.async();
+        JSZipUtils.getBinaryContent("ref/amount.txt", {}).then(function (data) {
+                assert.equal(toString(data), "\xe2\x82\xac\x31\x35\x0a", "The content has been fetched");
+                done();
+            })
+            .catch(function (err) {
+                assert.equal(err, null, "no error");
+                done();
+            });
+    });
+
+    QUnit.test("JSZipUtils.getBinaryContent smile, image, 200 OK", function (assert) {
+        var done = assert.async();
+        JSZipUtils.getBinaryContent("ref/smile.gif", {}).then(function (data) {
+            assert.equal(toString(data).indexOf("\x47\x49\x46\x38\x37\x61"), 0, "The content has been fetched");
+            done();
+        }).catch(function (err) {
+            assert.equal(err, null, "no error");
+            done();
+        });
+    });
+
+    QUnit.test("JSZipUtils.getBinaryContent nothing, 404 NOT FOUND", function (assert) {
+        var done = assert.async();
+        JSZipUtils.getBinaryContent("ref/nothing", {}).then(function (data) {
+            assert.equal(data, null, "no error");
+            done();
+        }).catch(function (err) {
+            assert.ok(err instanceof Error, "The error is an Error");
+            done();
+        });
+    });
+
+    QUnit.module("Promise, options={progress}");
+
+    QUnit.test("JSZipUtils.getBinaryContent amount, text, 200 OK", function (assert) {
+        var done = assert.async();
+        var progress = assert.async();
+        JSZipUtils.getBinaryContent("ref/amount.txt", { progress: function(e){
+            assert.ok(true, 'progress to be called');
+            assert.strictEqual(e.total, 6, 'total');
+            progress();
+        }}).then(function (data) {
+                assert.equal(toString(data), "\xe2\x82\xac\x31\x35\x0a", "The content has been fetched");
+                done();
+            })
+            .catch(function (err) {
+                assert.equal(err, null, "no error");
+                done();
+            });
+    });
+
+    QUnit.test("JSZipUtils.getBinaryContent smile, image, 200 OK", function (assert) {
+        var done = assert.async();
+        var progress = assert.async();
+        JSZipUtils.getBinaryContent("ref/smile.gif", { progress: function(e){
+            assert.ok(true, 'progress to be called');
+            assert.strictEqual(e.total, 41, 'total');
+            progress();
+        }}).then(function (data) {
+            assert.equal(toString(data).indexOf("\x47\x49\x46\x38\x37\x61"), 0, "The content has been fetched");
+            done();
+        }).catch(function (err) {
+            assert.equal(err, null, "no error");
+            done();
+        });
+    });
+
+    QUnit.test("JSZipUtils.getBinaryContent nothing, 404 NOT FOUND", function (assert) {
+        var done = assert.async();
+
+        JSZipUtils.getBinaryContent("ref/nothing", { progress: function(e){
+
+        }}).then(function (data) {
+            assert.equal(data, null, "no error");
+            done();
+        }).catch(function (err) {
+            assert.ok(err instanceof Error, "The error is an Error");
+            done();
+        });
+    });
+} // Promise tests
+
+// enforcing Stuk's coding style
+// vim: set shiftwidth=4 softtabstop=4:

libs/jszip/CHANGES.md

@@ -0,0 +1,204 @@
+---
+title: Changelog
+layout: default
+section: main
+---
+
+### v3.10.1 2022-08-02
+
+- Add sponsorship files.
+    + If you appreciate the time spent maintaining JSZip then I would really appreciate [your sponsorship](https://github.com/sponsors/Stuk).
+- Consolidate metadata types and expose OnUpdateCallback [#851](https://github.com/Stuk/jszip/pull/851) and [#852](https://github.com/Stuk/jszip/pull/852)
+- use `const` instead `var` in example from README.markdown [#828](https://github.com/Stuk/jszip/pull/828)
+- Switch manual download link to HTTPS [#839](https://github.com/Stuk/jszip/pull/839)
+
+Internals:
+
+- Replace jshint with eslint [#842](https://github.com/Stuk/jszip/pull/842)
+- Add performance tests [#834](https://github.com/Stuk/jszip/pull/834)
+
+### v3.10.0 2022-05-20
+
+- Change setimmediate dependency to more efficient one. Fixes https://github.com/Stuk/jszip/issues/617 (see [#829](https://github.com/Stuk/jszip/pull/829))
+- Update types of `currentFile` metadata to include `null` (see [#826](https://github.com/Stuk/jszip/pull/826))
+
+### v3.9.1 2022-04-06
+
+- Fix recursive definition of `InputFileFormat` introduced in 3.9.0.
+
+### v3.9.0 2022-04-04
+
+- Update types JSZip#loadAsync to accept a promise for data, and remove arguments from `new JSZip()` (see [#752](https://github.com/Stuk/jszip/pull/752))
+- Update types for `compressionOptions` to JSZipFileOptions and JSZipGeneratorOptions (see [#722](https://github.com/Stuk/jszip/pull/722))
+- Add types for `generateInternalStream` (see [#774](https://github.com/Stuk/jszip/pull/774))
+
+### v3.8.0 2022-03-30
+
+- Santize filenames when files are loaded with `loadAsync`, to avoid ["zip slip" attacks](https://snyk.io/research/zip-slip-vulnerability). The original filename is available on each zip entry as `unsafeOriginalName`. See the [documentation](https://stuk.github.io/jszip/documentation/api_jszip/load_async.html). Many thanks to McCaulay Hudson for reporting.
+
+### v3.7.1 2021-08-05
+
+- Fix build of `dist` files.
+    + Note: this version ensures the changes from 3.7.0 are actually included in the `dist` files. Thanks to Evan W for reporting.
+
+### v3.7.0 2021-07-23
+
+- Fix: Use a null prototype object for this.files  (see [#766](https://github.com/Stuk/jszip/pull/766))
+    + This change might break existing code if it uses prototype methods on the `.files` property of a zip object, for example `zip.files.toString()`. This approach is taken to prevent files in the zip overriding object methods that would exist on a normal object.
+
+### v3.6.0 2021-02-09
+
+- Fix: redirect main to dist on browsers (see [#742](https://github.com/Stuk/jszip/pull/742))
+- Fix duplicate require DataLengthProbe, utils (see [#734](https://github.com/Stuk/jszip/pull/734))
+- Fix small error in read_zip.md (see [#703](https://github.com/Stuk/jszip/pull/703))
+
+### v3.5.0 2020-05-31
+
+- Fix 'End of data reached' error when file extra field is invalid (see [#544](https://github.com/Stuk/jszip/pull/544)).
+- Typescript definitions: Add null to return types of functions that may return null (see [#669](https://github.com/Stuk/jszip/pull/669)).
+- Typescript definitions: Correct nodeStream's type (see [#682](https://github.com/Stuk/jszip/pull/682))
+- Typescript definitions: Add string output type (see [#666](https://github.com/Stuk/jszip/pull/666))
+
+### v3.4.0 2020-04-19
+
+- Add Typescript type definitions (see [#601](https://github.com/Stuk/jszip/pull/601)).
+
+### v3.3.0 2020-04-1
+
+- Change browser module resolution to support Angular packager (see [#614](https://github.com/Stuk/jszip/pull/614)).
+
+### v3.2.2 2019-07-04
+- No public changes, but a number of testing dependencies have been updated.
+- Tested browsers are now: Internet Explorer 11, Chrome (most recent) and Firefox (most recent). Other browsers (specifically Safari) are still supported however testing them on Saucelabs is broken and so they were removed from the test matrix.
+
+### v3.2.1 2019-03-22
+- Corrected built dist files
+
+### v3.2.0 2019-02-21
+- Update dependencies to reduce bundle size (see [#532](https://github.com/Stuk/jszip/pull/532)).
+- Fix deprecated Buffer constructor usage and add safeguards (see [#506](https://github.com/Stuk/jszip/pull/506)).
+
+### v3.1.5 2017-11-09
+- Fix IE11 memory leak (see [#429](https://github.com/Stuk/jszip/pull/429)).
+- Handle 2 nodejs deprecations (see [#459](https://github.com/Stuk/jszip/pull/459)).
+- Improve the "unsupported format" error message (see [#461](https://github.com/Stuk/jszip/pull/461)).
+- Improve webworker compatibility (see [#468](https://github.com/Stuk/jszip/pull/468)).
+- Fix nodejs 0.10 compatibility (see [#480](https://github.com/Stuk/jszip/pull/480)).
+- Improve the error without type in async() (see [#481](https://github.com/Stuk/jszip/pull/481)).
+
+### v3.1.4 2017-08-24
+- consistently use our own utils object for inheritance (see [#395](https://github.com/Stuk/jszip/pull/395)).
+- lower the memory consumption in `generate*` with a lot of files (see [#449](https://github.com/Stuk/jszip/pull/449)).
+
+### v3.1.3 2016-10-06
+- instanceof failing in window / iframe contexts (see [#350](https://github.com/Stuk/jszip/pull/350)).
+- remove a copy with blob output (see [#357](https://github.com/Stuk/jszip/pull/357)).
+- fix crc32 check for empty entries (see [#358](https://github.com/Stuk/jszip/pull/358)).
+- fix the base64 error message with data uri (see [#359](https://github.com/Stuk/jszip/pull/359)).
+
+### v3.1.2 2016-08-23
+- fix support of nodejs `process.platform` in `generate*` methods (see [#335](https://github.com/Stuk/jszip/pull/335)).
+- improve browserify/webpack support (see [#333](https://github.com/Stuk/jszip/pull/333)).
+- partial support of a promise of text (see [#337](https://github.com/Stuk/jszip/pull/337)).
+- fix streamed zip files containing folders (see [#342](https://github.com/Stuk/jszip/pull/342)).
+
+### v3.1.1 2016-08-08
+- Use a hard-coded JSZip.version, fix an issue with webpack (see [#328](https://github.com/Stuk/jszip/pull/328)).
+
+### v3.1.0 2016-08-03
+- utils.delay: use macro tasks instead of micro tasks (see [#288](https://github.com/Stuk/jszip/pull/288)).
+- Harden base64 decode (see [#316](https://github.com/Stuk/jszip/pull/316)).
+- Add JSZip.version and the version in the header (see [#317](https://github.com/Stuk/jszip/pull/317)).
+- Support Promise(Blob) (see [#318](https://github.com/Stuk/jszip/pull/318)).
+- Change JSZip.external.Promise implementation (see [#321](https://github.com/Stuk/jszip/pull/321)).
+- Update pako to v1.0.2 to fix a DEFLATE bug (see [#322](https://github.com/Stuk/jszip/pull/322)).
+
+### v3.0.0 2016-04-13
+This release changes a lot of methods, please see [the upgrade guide](http://stuk.github.io/jszip/documentation/upgrade_guide.html).
+
+- replace sync getters and `generate()` with async methods (see [#195](https://github.com/Stuk/jszip/pull/195)).
+- support nodejs streams (in `file()` and `generateAsync()`).
+- support Blob and Promise in `file()` and `loadAsync()` (see [#275](https://github.com/Stuk/jszip/pull/275)).
+- add `support.nodestream`.
+- zip.filter: remove the defensive copy.
+- remove the deprecated API (see [#253](https://github.com/Stuk/jszip/pull/253)).
+- `type` is now mandatory in `generateAsync()`.
+- change the createFolders default value (now `true`).
+- Dates: use UTC instead of the local timezone.
+- Add `base64` and `array` as possible output type.
+- Add a forEach method.
+- Drop node 0.8 support (see [#270](https://github.com/Stuk/jszip/pull/270)).
+
+### v2.6.1 2016-07-28
+- update pako to v1.0.2 to fix a DEFLATE bug (see [#322](https://github.com/Stuk/jszip/pull/322)).
+
+### 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.

libs/jszip/LICENSE.markdown

@@ -0,0 +1,651 @@
+JSZip is dual licensed. At your choice you may use it under the MIT license *or* the GPLv3
+license.
+
+The MIT License
+===============
+
+Copyright (c) 2009-2016 Stuart Knightley, David Duponchel, Franz Buchinger, António Afonso
+
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+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+
+GPL version 3
+=============
+
+                    GNU GENERAL PUBLIC LICENSE
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+
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+  All other non-permissive additional terms are considered "further
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+  You may not propagate or modify a covered work except as expressly
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+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
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+
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+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
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+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
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+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
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+
+  14. Revised Versions of this License.
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+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
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+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
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+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
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+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+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
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+
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+
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+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

libs/jszip/README.markdown

@@ -0,0 +1,33 @@
+JSZip
+=====
+
+A library for creating, reading and editing .zip files with JavaScript, with a
+lovely and simple API.
+
+See https://stuk.github.io/jszip for all the documentation.
+
+```javascript
+const zip = new JSZip();
+
+zip.file("Hello.txt", "Hello World\n");
+
+const img = zip.folder("images");
+img.file("smile.gif", imgData, {base64: true});
+
+zip.generateAsync({type:"blob"}).then(function(content) {
+    // 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).

libs/jszip/deps.js

@@ -0,0 +1,37 @@
+"use strict";
+
+const madge = require("madge");
+const path = require("path");
+const ts = require("typescript");
+
+const DIR = "./lib";
+
+async function main() {
+    const tsconfigPath = ts.findConfigFile("./", ts.sys.fileExists);
+    const tsconfig = ts.readConfigFile(tsconfigPath, ts.sys.readFile).config;
+    const parsedConfig = ts.parseJsonConfigFileContent(tsconfig, ts.sys, "./");
+    const typedPaths = parsedConfig.fileNames.map(filename => path.resolve("./", filename));
+
+    const excludeTypedPaths = path => !typedPaths.includes(path);
+
+    const res = await madge(DIR, {
+        dependencyFilter: excludeTypedPaths
+    });
+
+    const untypedLeaves = res.leaves().map(filename => path.resolve(DIR, filename)).filter(excludeTypedPaths);
+    if (untypedLeaves.length) {
+        console.log("Convert next:");
+        console.log(untypedLeaves.join("\n"));
+    } else {
+        console.log("No untyped leaf dependencies found.");
+        console.log("Try looking at circular dependencies, or the image to decide what to convert next:");
+        const untypedCircular = res.circular().flat().map(filename => path.resolve(DIR, filename)).filter(excludeTypedPaths);
+        console.log(untypedCircular.join("\n"));
+    }
+
+    const imagePath = await res.image("graph.svg");
+    console.log();
+    console.log("Image written to " + imagePath);
+}
+
+main();

libs/jszip/graph.svg

@@ -0,0 +1,601 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 5.0.0 (20220707.1540)
+ -->
+<!-- Title: G Pages: 1 -->
+<svg width="1779pt" height="983pt"
+ viewBox="0.00 0.00 1779.20 982.66" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(21.6 961.06)">
+<title>G</title>
+<polygon fill="#111111" stroke="transparent" points="-21.6,21.6 -21.6,-961.06 1757.6,-961.06 1757.6,21.6 -21.6,21.6"/>
+<!-- base64.js -->
+<g id="node1" class="node">
+<title>base64.js</title>
+<path fill="none" stroke="#cfffac" d="M119.83,-306C119.83,-306 61.17,-306 61.17,-306 57.33,-306 53.5,-302.17 53.5,-298.33 53.5,-298.33 53.5,-290.67 53.5,-290.67 53.5,-286.83 57.33,-283 61.17,-283 61.17,-283 119.83,-283 119.83,-283 123.67,-283 127.5,-286.83 127.5,-290.67 127.5,-290.67 127.5,-298.33 127.5,-298.33 127.5,-302.17 123.67,-306 119.83,-306"/>
+<text text-anchor="middle" x="90.5" y="-290.8" font-family="Arial" font-size="14.00" fill="#cfffac">base64.js</text>
+</g>
+<!-- compressedObject.js -->
+<g id="node2" class="node">
+<title>compressedObject.js</title>
+<path fill="none" stroke="#c6c5fe" d="M1141.33,-296C1141.33,-296 1012.67,-296 1012.67,-296 1008.83,-296 1005,-292.17 1005,-288.33 1005,-288.33 1005,-280.67 1005,-280.67 1005,-276.83 1008.83,-273 1012.67,-273 1012.67,-273 1141.33,-273 1141.33,-273 1145.17,-273 1149,-276.83 1149,-280.67 1149,-280.67 1149,-288.33 1149,-288.33 1149,-292.17 1145.17,-296 1141.33,-296"/>
+<text text-anchor="middle" x="1077" y="-280.8" font-family="Arial" font-size="14.00" fill="#c6c5fe">compressedObject.js</text>
+</g>
+<!-- stream/Crc32Probe.js -->
+<g id="node3" class="node">
+<title>stream/Crc32Probe.js</title>
+<path fill="none" stroke="#c6c5fe" d="M1348.83,-415C1348.83,-415 1216.17,-415 1216.17,-415 1212.33,-415 1208.5,-411.17 1208.5,-407.33 1208.5,-407.33 1208.5,-399.67 1208.5,-399.67 1208.5,-395.83 1212.33,-392 1216.17,-392 1216.17,-392 1348.83,-392 1348.83,-392 1352.67,-392 1356.5,-395.83 1356.5,-399.67 1356.5,-399.67 1356.5,-407.33 1356.5,-407.33 1356.5,-411.17 1352.67,-415 1348.83,-415"/>
+<text text-anchor="middle" x="1282.5" y="-399.8" font-family="Arial" font-size="14.00" fill="#c6c5fe">stream/Crc32Probe.js</text>
+</g>
+<!-- compressedObject.js&#45;&gt;stream/Crc32Probe.js -->
+<g id="edge1" class="edge">
+<title>compressedObject.js&#45;&gt;stream/Crc32Probe.js</title>
+<path fill="none" stroke="#757575" d="M1089.24,-296.19C1109.84,-316.93 1155.86,-360.17 1203,-383.5 1206.76,-385.36 1210.7,-387.06 1214.75,-388.61"/>
+<polygon fill="#757575" stroke="#757575" points="1213.71,-391.95 1224.3,-391.95 1216.02,-385.35 1213.71,-391.95"/>
+</g>
+<!-- stream/DataLengthProbe.js -->
+<g id="node4" class="node">
+<title>stream/DataLengthProbe.js</title>
+<path fill="none" stroke="#c6c5fe" d="M1605.33,-337C1605.33,-337 1438.67,-337 1438.67,-337 1434.83,-337 1431,-333.17 1431,-329.33 1431,-329.33 1431,-321.67 1431,-321.67 1431,-317.83 1434.83,-314 1438.67,-314 1438.67,-314 1605.33,-314 1605.33,-314 1609.17,-314 1613,-317.83 1613,-321.67 1613,-321.67 1613,-329.33 1613,-329.33 1613,-333.17 1609.17,-337 1605.33,-337"/>
+<text text-anchor="middle" x="1522" y="-321.8" font-family="Arial" font-size="14.00" fill="#c6c5fe">stream/DataLengthProbe.js</text>
+</g>
+<!-- compressedObject.js&#45;&gt;stream/DataLengthProbe.js -->
+<g id="edge2" class="edge">
+<title>compressedObject.js&#45;&gt;stream/DataLengthProbe.js</title>
+<path fill="none" stroke="#757575" d="M1146.96,-296.01C1165.15,-298.77 1184.78,-301.49 1203,-303.5 1275.56,-311.51 1357.77,-317.11 1420.42,-320.65"/>
+<polygon fill="#757575" stroke="#757575" points="1420.52,-324.16 1430.7,-321.22 1420.91,-317.17 1420.52,-324.16"/>
+</g>
+<!-- stream/DataWorker.js -->
+<g id="node5" class="node">
+<title>stream/DataWorker.js</title>
+<path fill="none" stroke="#c6c5fe" d="M1348.33,-294C1348.33,-294 1216.67,-294 1216.67,-294 1212.83,-294 1209,-290.17 1209,-286.33 1209,-286.33 1209,-278.67 1209,-278.67 1209,-274.83 1212.83,-271 1216.67,-271 1216.67,-271 1348.33,-271 1348.33,-271 1352.17,-271 1356,-274.83 1356,-278.67 1356,-278.67 1356,-286.33 1356,-286.33 1356,-290.17 1352.17,-294 1348.33,-294"/>
+<text text-anchor="middle" x="1282.5" y="-278.8" font-family="Arial" font-size="14.00" fill="#c6c5fe">stream/DataWorker.js</text>
+</g>
+<!-- compressedObject.js&#45;&gt;stream/DataWorker.js -->
+<g id="edge3" class="edge">
+<title>compressedObject.js&#45;&gt;stream/DataWorker.js</title>
+<path fill="none" stroke="#757575" d="M1149.17,-283.8C1165.22,-283.64 1182.37,-283.47 1198.84,-283.31"/>
+<polygon fill="#757575" stroke="#757575" points="1199.02,-286.81 1208.99,-283.21 1198.95,-279.81 1199.02,-286.81"/>
+</g>
+<!-- crc32.js -->
+<g id="node8" class="node">
+<title>crc32.js</title>
+<path fill="none" stroke="#c6c5fe" d="M1545.83,-495C1545.83,-495 1498.17,-495 1498.17,-495 1494.33,-495 1490.5,-491.17 1490.5,-487.33 1490.5,-487.33 1490.5,-479.67 1490.5,-479.67 1490.5,-475.83 1494.33,-472 1498.17,-472 1498.17,-472 1545.83,-472 1545.83,-472 1549.67,-472 1553.5,-475.83 1553.5,-479.67 1553.5,-479.67 1553.5,-487.33 1553.5,-487.33 1553.5,-491.17 1549.67,-495 1545.83,-495"/>
+<text text-anchor="middle" x="1522" y="-479.8" font-family="Arial" font-size="14.00" fill="#c6c5fe">crc32.js</text>
+</g>
+<!-- stream/Crc32Probe.js&#45;&gt;crc32.js -->
+<g id="edge42" class="edge">
+<title>stream/Crc32Probe.js&#45;&gt;crc32.js</title>
+<path fill="none" stroke="#757575" d="M1317.78,-415.05C1360.98,-429.6 1435.12,-454.57 1480.9,-469.99"/>
+<polygon fill="#757575" stroke="#757575" points="1479.91,-473.35 1490.5,-473.23 1482.14,-466.72 1479.91,-473.35"/>
+</g>
+<!-- utils.js -->
+<g id="node9" class="node">
+<title>utils.js</title>
+<path fill="none" stroke="#cfffac" d="M1728.33,-495C1728.33,-495 1689.67,-495 1689.67,-495 1685.83,-495 1682,-491.17 1682,-487.33 1682,-487.33 1682,-479.67 1682,-479.67 1682,-475.83 1685.83,-472 1689.67,-472 1689.67,-472 1728.33,-472 1728.33,-472 1732.17,-472 1736,-475.83 1736,-479.67 1736,-479.67 1736,-487.33 1736,-487.33 1736,-491.17 1732.17,-495 1728.33,-495"/>
+<text text-anchor="middle" x="1709" y="-479.8" font-family="Arial" font-size="14.00" fill="#cfffac">utils.js</text>
+</g>
+<!-- stream/Crc32Probe.js&#45;&gt;utils.js -->
+<g id="edge43" class="edge">
+<title>stream/Crc32Probe.js&#45;&gt;utils.js</title>
+<path fill="none" stroke="#757575" d="M1356.76,-395.52C1432.27,-390.27 1551.91,-390.38 1646,-429.5 1663.95,-436.96 1680.34,-451.77 1691.76,-463.99"/>
+<polygon fill="#757575" stroke="#757575" points="1689.24,-466.42 1698.51,-471.54 1694.46,-461.75 1689.24,-466.42"/>
+</g>
+<!-- stream/DataLengthProbe.js&#45;&gt;utils.js -->
+<g id="edge44" class="edge">
+<title>stream/DataLengthProbe.js&#45;&gt;utils.js</title>
+<path fill="none" stroke="#757575" d="M1613.06,-335.12C1624.95,-339.19 1636.34,-344.81 1646,-352.5 1680.91,-380.29 1697.21,-432.45 1703.92,-461.87"/>
+<polygon fill="#757575" stroke="#757575" points="1700.56,-462.88 1706.05,-471.94 1707.41,-461.43 1700.56,-462.88"/>
+</g>
+<!-- stream/DataWorker.js&#45;&gt;utils.js -->
+<g id="edge45" class="edge">
+<title>stream/DataWorker.js&#45;&gt;utils.js</title>
+<path fill="none" stroke="#757575" d="M1328.44,-270.94C1402.75,-254.67 1552.34,-234.37 1646,-305.5 1695.57,-343.15 1705.71,-423.13 1707.64,-461.74"/>
+<polygon fill="#757575" stroke="#757575" points="1704.15,-462.02 1708.01,-471.89 1711.15,-461.77 1704.15,-462.02"/>
+</g>
+<!-- compressions.js -->
+<g id="node6" class="node">
+<title>compressions.js</title>
+<path fill="none" stroke="#c6c5fe" d="M1126.33,-608C1126.33,-608 1027.67,-608 1027.67,-608 1023.83,-608 1020,-604.17 1020,-600.33 1020,-600.33 1020,-592.67 1020,-592.67 1020,-588.83 1023.83,-585 1027.67,-585 1027.67,-585 1126.33,-585 1126.33,-585 1130.17,-585 1134,-588.83 1134,-592.67 1134,-592.67 1134,-600.33 1134,-600.33 1134,-604.17 1130.17,-608 1126.33,-608"/>
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+<!-- stream/GenericWorker.js -->
+<g id="node34" class="node">
+<title>stream/GenericWorker.js</title>
+<path fill="none" stroke="#cfffac" d="M166.33,-634C166.33,-634 14.67,-634 14.67,-634 10.83,-634 7,-630.17 7,-626.33 7,-626.33 7,-618.67 7,-618.67 7,-614.83 10.83,-611 14.67,-611 14.67,-611 166.33,-611 166.33,-611 170.17,-611 174,-614.83 174,-618.67 174,-618.67 174,-626.33 174,-626.33 174,-630.17 170.17,-634 166.33,-634"/>
+<text text-anchor="middle" x="90.5" y="-618.8" font-family="Arial" font-size="14.00" fill="#cfffac">stream/GenericWorker.js</text>
+</g>
+<!-- support.js -->
+<g id="node35" class="node">
+<title>support.js</title>
+<path fill="none" stroke="#cfffac" d="M120.33,-675C120.33,-675 60.67,-675 60.67,-675 56.83,-675 53,-671.17 53,-667.33 53,-667.33 53,-659.67 53,-659.67 53,-655.83 56.83,-652 60.67,-652 60.67,-652 120.33,-652 120.33,-652 124.17,-652 128,-655.83 128,-659.67 128,-659.67 128,-667.33 128,-667.33 128,-671.17 124.17,-675 120.33,-675"/>
+<text text-anchor="middle" x="90.5" y="-659.8" font-family="Arial" font-size="14.00" fill="#cfffac">support.js</text>
+</g>
+<!-- zipEntry.js&#45;&gt;compressedObject.js -->
+<g id="edge53" class="edge">
+<title>zipEntry.js&#45;&gt;compressedObject.js</title>
+<path fill="none" stroke="#757575" d="M481.75,-584.89C494.31,-566.55 520.51,-530.33 548,-504.5 614.23,-442.27 632.98,-425.64 715,-386.5 808.66,-341.8 925.59,-313.23 1000.53,-298.03"/>
+<polygon fill="#757575" stroke="#757575" points="1001.25,-301.45 1010.37,-296.06 999.87,-294.59 1001.25,-301.45"/>
+</g>
+<!-- zipEntry.js&#45;&gt;compressions.js -->
+<g id="edge54" class="edge">
+<title>zipEntry.js&#45;&gt;compressions.js</title>
+<path fill="none" stroke="#757575" d="M512.11,-596.5C612.17,-596.5 883.28,-596.5 1009.58,-596.5"/>
+<polygon fill="#757575" stroke="#757575" points="1009.88,-600 1019.88,-596.5 1009.88,-593 1009.88,-600"/>
+</g>
+<!-- zipEntry.js&#45;&gt;crc32.js -->
+<g id="edge55" class="edge">
+<title>zipEntry.js&#45;&gt;crc32.js</title>
+<path fill="none" stroke="#757575" d="M512.19,-592.38C675.12,-574.79 1311.33,-506.13 1479.85,-487.94"/>
+<polygon fill="#757575" stroke="#757575" points="1480.47,-491.39 1490.04,-486.84 1479.72,-484.44 1480.47,-491.39"/>
+</g>
+<!-- zipEntry.js&#45;&gt;utils.js -->
+<g id="edge58" class="edge">
+<title>zipEntry.js&#45;&gt;utils.js</title>
+<path fill="none" stroke="#757575" d="M512.29,-604.47C523.74,-606.65 536.35,-608.87 548,-610.5 673.53,-628.08 705.25,-636.5 832,-636.5 832,-636.5 832,-636.5 1283.5,-636.5 1364.17,-636.5 1579.19,-662.71 1646,-617.5 1684,-591.78 1699.17,-536.51 1704.86,-505.59"/>
+<polygon fill="#757575" stroke="#757575" points="1708.37,-505.84 1706.55,-495.4 1701.46,-504.69 1708.37,-505.84"/>
+</g>
+<!-- zipEntry.js&#45;&gt;utf8.js -->
+<g id="edge57" class="edge">
+<title>zipEntry.js&#45;&gt;utf8.js</title>
+<path fill="none" stroke="#757575" d="M488.53,-584.79C503.1,-573.32 526.42,-555.68 548,-542.5 618.91,-499.2 636.06,-484.39 715,-458.5 815.21,-425.63 1136.39,-381.56 1245.12,-367.22"/>
+<polygon fill="#757575" stroke="#757575" points="1245.8,-370.66 1255.26,-365.89 1244.89,-363.72 1245.8,-370.66"/>
+</g>
+<!-- zipEntry.js&#45;&gt;reader/readerFor.js -->
+<g id="edge56" class="edge">
+<title>zipEntry.js&#45;&gt;reader/readerFor.js</title>
+<path fill="none" stroke="#757575" d="M487.28,-608.01C511.31,-628.83 562.21,-672.93 591.17,-698.02"/>
+<polygon fill="#757575" stroke="#757575" points="589.21,-700.95 599.06,-704.85 593.79,-695.66 589.21,-700.95"/>
+</g>
+</g>
+</svg>

libs/jszip/index.d.ts

@@ -0,0 +1,330 @@
+// Type definitions for JSZip 3.1
+// Project: http://stuk.github.com/jszip/, https://github.com/stuk/jszip
+// Definitions by: mzeiher <https://github.com/mzeiher>, forabi <https://github.com/forabi>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.3
+
+/// <reference types="node" />
+
+interface JSZipSupport {
+    arraybuffer: boolean;
+    uint8array: boolean;
+    blob: boolean;
+    nodebuffer: boolean;
+}
+
+type Compression = 'STORE' | 'DEFLATE';
+
+/**
+ * Depends on the compression type. With `STORE` (no compression), these options are ignored. With
+ * `DEFLATE`, you can give the compression level between 1 (best speed) and 9 (best compression).
+ */
+interface CompressionOptions {
+    level: number;
+}
+
+interface InputByType {
+    base64: string;
+    string: string;
+    text: string;
+    binarystring: string;
+    array: number[];
+    uint8array: Uint8Array;
+    arraybuffer: ArrayBuffer;
+    blob: Blob;
+    stream: NodeJS.ReadableStream;
+}
+
+interface OutputByType {
+    base64: string;
+    string: string;
+    text: string;
+    binarystring: string;
+    array: number[];
+    uint8array: Uint8Array;
+    arraybuffer: ArrayBuffer;
+    blob: Blob;
+    nodebuffer: Buffer;
+}
+
+// This private `_data` property on a JSZipObject uses this interface.
+// If/when it is made public this should be uncommented.
+// interface CompressedObject {
+//     compressedSize: number;
+//     uncompressedSize: number;
+//     crc32: number;
+//     compression: object;
+//     compressedContent: string|ArrayBuffer|Uint8Array|Buffer;
+// }
+
+type InputFileFormat = InputByType[keyof InputByType] | Promise<InputByType[keyof InputByType]>;
+
+declare namespace JSZip {
+    type InputType = keyof InputByType;
+
+    type OutputType = keyof OutputByType;
+
+    interface JSZipMetadata {
+        percent: number;
+        currentFile: string | null;
+    }
+
+    type OnUpdateCallback = (metadata: JSZipMetadata) => void;
+
+    interface JSZipObject {
+        name: string;
+        /**
+         * Present for files loadded with `loadAsync`. May contain ".." path components that could
+         * result in a zip-slip attack. See https://snyk.io/research/zip-slip-vulnerability
+         */
+        unsafeOriginalName?: string;
+        dir: boolean;
+        date: Date;
+        comment: string;
+        /** The UNIX permissions of the file, if any. */
+        unixPermissions: number | string | null;
+        /** The UNIX permissions of the file, if any. */
+        dosPermissions: number | null;
+        options: JSZipObjectOptions;
+
+        /**
+         * Prepare the content in the asked type.
+         * @param type the type of the result.
+         * @param onUpdate a function to call on each internal update.
+         * @return Promise the promise of the result.
+         */
+        async<T extends OutputType>(type: T, onUpdate?: OnUpdateCallback): Promise<OutputByType[T]>;
+        nodeStream(type?: 'nodebuffer', onUpdate?: OnUpdateCallback): NodeJS.ReadableStream;
+    }
+
+    interface JSZipFileOptions {
+        /** 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. */
+        base64?: boolean;
+        /**
+         * 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`.
+         */
+        binary?: boolean;
+        /**
+         * The last modification date, defaults to the current date.
+         */
+        date?: Date;
+        /**
+         * Sets per file compression. The `compressionOptions` parameter depends on the compression type.
+         */
+        compression?: Compression;
+        /**
+         * Sets per file compression level for `DEFLATE` compression.
+         */
+        compressionOptions?: null | CompressionOptions;
+        comment?: string;
+        /** Set to `true` if (and only if) the input is a "binary string" and has already been prepared with a `0xFF` mask. */
+        optimizedBinaryString?: boolean;
+        /** 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. */
+        createFolders?: boolean;
+        /** Set to `true` if this is a directory and content should be ignored. */
+        dir?: boolean;
+
+        /** 6 bits number. The DOS permissions of the file, if any. */
+        dosPermissions?: number | null;
+        /**
+         * 16 bits number. The UNIX permissions of the file, if any.
+         * Also accepts a `string` representing the octal value: `"644"`, `"755"`, etc.
+         */
+        unixPermissions?: number | string | null;
+    }
+
+    interface JSZipObjectOptions {
+        compression: Compression;
+    }
+
+    interface JSZipGeneratorOptions<T extends OutputType = OutputType> {
+        /**
+         * Sets compression option for all entries that have not specified their own `compression` option
+         */
+        compression?: Compression;
+        /**
+         * Sets compression level for `DEFLATE` compression.
+         */
+        compressionOptions?: null | CompressionOptions;
+        type?: T;
+        comment?: string;
+        /**
+         * mime-type for the generated file.
+         * Useful when you need to generate a file with a different extension, ie: “.ods”.
+         * @default 'application/zip'
+         */
+        mimeType?: string;
+        encodeFileName?(filename: string): string;
+        /** Stream the files and create file descriptors */
+        streamFiles?: boolean;
+        /** DOS (default) or UNIX */
+        platform?: 'DOS' | 'UNIX';
+    }
+
+    interface JSZipLoadOptions {
+        base64?: boolean;
+        checkCRC32?: boolean;
+        optimizedBinaryString?: boolean;
+        createFolders?: boolean;
+        decodeFileName?: (bytes: string[] | Uint8Array | Buffer) => string;
+    }
+
+    type DataEventCallback<T> = (dataChunk: T, metadata: JSZipMetadata) => void
+    type EndEventCallback = () => void
+    type ErrorEventCallback = (error: Error) => void
+
+    interface JSZipStreamHelper<T> {
+        /**
+         * Register a listener on an event
+         */
+        on(event: 'data', callback: DataEventCallback<T>): this;
+        on(event: 'end', callback: EndEventCallback): this;
+        on(event: 'error', callback: ErrorEventCallback): this;
+
+        /**
+         * Read the whole stream and call a callback with the complete content
+         *
+         * @param updateCallback The function called every time the stream updates
+         * @return A Promise of the full content
+         */
+        accumulate(updateCallback?: (metadata: JSZipMetadata) => void): Promise<T>;
+
+        /**
+         * Resume the stream if the stream is paused. Once resumed, the stream starts sending data events again
+         *
+         * @return The current StreamHelper object, for chaining
+         */
+        resume(): this;
+
+        /**
+         * Pause the stream if the stream is running. Once paused, the stream stops sending data events
+         *
+         * @return The current StreamHelper object, for chaining
+         */
+        pause(): this;
+    }
+}
+
+interface JSZip {
+    files: {[key: string]: JSZip.JSZipObject};
+
+    /**
+     * Get a file from the archive
+     *
+     * @param Path relative path to file
+     * @return File matching path, null if no file found
+     */
+    file(path: string): JSZip.JSZipObject | null;
+
+    /**
+     * Get files matching a RegExp from archive
+     *
+     * @param path RegExp to match
+     * @return Return all matching files or an empty array
+     */
+    file(path: RegExp): JSZip.JSZipObject[];
+
+    /**
+     * Add a file to the archive
+     *
+     * @param path Relative path to file
+     * @param data Content of the file
+     * @param options Optional information about the file
+     * @return JSZip object
+     */
+    file<T extends JSZip.InputType>(path: string, data: InputByType[T] | Promise<InputByType[T]>, options?: JSZip.JSZipFileOptions): this;
+    file<T extends JSZip.InputType>(path: string, data: null, options?: JSZip.JSZipFileOptions & { dir: true }): this;
+
+    /**
+     * Returns an new JSZip instance with the given folder as root
+     *
+     * @param name Name of the folder
+     * @return New JSZip object with the given folder as root or null
+     */
+    folder(name: string): JSZip | null;
+
+    /**
+     * Returns new JSZip instances with the matching folders as root
+     *
+     * @param name RegExp to match
+     * @return New array of JSZipFile objects which match the RegExp
+     */
+    folder(name: RegExp): JSZip.JSZipObject[];
+
+    /**
+     * Call a callback function for each entry at this folder level.
+     *
+     * @param callback function
+     */
+    forEach(callback: (relativePath: string, file: JSZip.JSZipObject) => void): void;
+
+    /**
+     * Get all files which match the given filter function
+     *
+     * @param predicate Filter function
+     * @return Array of matched elements
+     */
+    filter(predicate: (relativePath: string, file: JSZip.JSZipObject) => boolean): JSZip.JSZipObject[];
+
+    /**
+     * Removes the file or folder from the archive
+     *
+     * @param path Relative path of file or folder
+     * @return Returns the JSZip instance
+     */
+    remove(path: string): JSZip;
+
+    /**
+     * Generates a new archive asynchronously
+     *
+     * @param options Optional options for the generator
+     * @param onUpdate The optional function called on each internal update with the metadata.
+     * @return The serialized archive
+     */
+    generateAsync<T extends JSZip.OutputType>(options?: JSZip.JSZipGeneratorOptions<T>, onUpdate?: JSZip.OnUpdateCallback): Promise<OutputByType[T]>;
+
+    /**
+     * Generates a new archive asynchronously
+     *
+     * @param options Optional options for the generator
+     * @param onUpdate The optional function called on each internal update with the metadata.
+     * @return A Node.js `ReadableStream`
+     */
+    generateNodeStream(options?: JSZip.JSZipGeneratorOptions<'nodebuffer'>, onUpdate?: JSZip.OnUpdateCallback): NodeJS.ReadableStream;
+
+    /**
+     * Generates the complete zip file with the internal stream implementation
+     *
+     * @param options Optional options for the generator
+     * @return a StreamHelper
+     */
+    generateInternalStream<T extends JSZip.OutputType>(options?: JSZip.JSZipGeneratorOptions<T>): JSZip.JSZipStreamHelper<OutputByType[T]>;
+
+    /**
+     * Deserialize zip file asynchronously
+     *
+     * @param data Serialized zip file
+     * @param options Options for deserializing
+     * @return Returns promise
+     */
+    loadAsync(data: InputFileFormat, options?: JSZip.JSZipLoadOptions): Promise<JSZip>;
+
+    /**
+     * Create JSZip instance
+     */
+    new(): this;
+
+    (): JSZip;
+
+    prototype: JSZip;
+    support: JSZipSupport;
+    external: {
+        Promise: PromiseConstructorLike;
+    };
+    version: string;
+}
+
+declare var JSZip: JSZip;
+
+export = JSZip;

libs/jszip/lib/base64.js

@@ -0,0 +1,106 @@
+"use strict";
+var utils = require("./utils");
+var support = require("./support");
+// private property
+var _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+
+
+// public method for encoding
+exports.encode = function(input) {
+    var output = [];
+    var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
+    var i = 0, len = input.length, remainingBytes = len;
+
+    var isArray = utils.getTypeOf(input) !== "string";
+    while (i < input.length) {
+        remainingBytes = len - i;
+
+        if (!isArray) {
+            chr1 = input.charCodeAt(i++);
+            chr2 = i < len ? input.charCodeAt(i++) : 0;
+            chr3 = i < len ? input.charCodeAt(i++) : 0;
+        } else {
+            chr1 = input[i++];
+            chr2 = i < len ? input[i++] : 0;
+            chr3 = i < len ? input[i++] : 0;
+        }
+
+        enc1 = chr1 >> 2;
+        enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
+        enc3 = remainingBytes > 1 ? (((chr2 & 15) << 2) | (chr3 >> 6)) : 64;
+        enc4 = remainingBytes > 2 ? (chr3 & 63) : 64;
+
+        output.push(_keyStr.charAt(enc1) + _keyStr.charAt(enc2) + _keyStr.charAt(enc3) + _keyStr.charAt(enc4));
+
+    }
+
+    return output.join("");
+};
+
+// public method for decoding
+exports.decode = function(input) {
+    var chr1, chr2, chr3;
+    var enc1, enc2, enc3, enc4;
+    var i = 0, resultIndex = 0;
+
+    var dataUrlPrefix = "data:";
+
+    if (input.substr(0, dataUrlPrefix.length) === dataUrlPrefix) {
+        // This is a common error: people give a data url
+        // (data:image/png;base64,iVBOR...) with a {base64: true} and
+        // wonders why things don't work.
+        // We can detect that the string input looks like a data url but we
+        // *can't* be sure it is one: removing everything up to the comma would
+        // be too dangerous.
+        throw new Error("Invalid base64 input, it looks like a data url.");
+    }
+
+    input = input.replace(/[^A-Za-z0-9+/=]/g, "");
+
+    var totalLength = input.length * 3 / 4;
+    if(input.charAt(input.length - 1) === _keyStr.charAt(64)) {
+        totalLength--;
+    }
+    if(input.charAt(input.length - 2) === _keyStr.charAt(64)) {
+        totalLength--;
+    }
+    if (totalLength % 1 !== 0) {
+        // totalLength is not an integer, the length does not match a valid
+        // base64 content. That can happen if:
+        // - the input is not a base64 content
+        // - the input is *almost* a base64 content, with a extra chars at the
+        //   beginning or at the end
+        // - the input uses a base64 variant (base64url for example)
+        throw new Error("Invalid base64 input, bad content length.");
+    }
+    var output;
+    if (support.uint8array) {
+        output = new Uint8Array(totalLength|0);
+    } else {
+        output = new Array(totalLength|0);
+    }
+
+    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[resultIndex++] = chr1;
+
+        if (enc3 !== 64) {
+            output[resultIndex++] = chr2;
+        }
+        if (enc4 !== 64) {
+            output[resultIndex++] = chr3;
+        }
+
+    }
+
+    return output;
+};

libs/jszip/lib/compressedObject.js

@@ -0,0 +1,74 @@
+"use strict";
+
+var external = require("./external");
+var DataWorker = require("./stream/DataWorker");
+var Crc32Probe = require("./stream/Crc32Probe");
+var DataLengthProbe = require("./stream/DataLengthProbe");
+
+/**
+ * Represent a compressed object, with everything needed to decompress it.
+ * @constructor
+ * @param {number} compressedSize the size of the data compressed.
+ * @param {number} uncompressedSize the size of the data after decompression.
+ * @param {number} crc32 the crc32 of the decompressed file.
+ * @param {object} compression the type of compression, see lib/compressions.js.
+ * @param {String|ArrayBuffer|Uint8Array|Buffer} data the compressed data.
+ */
+function CompressedObject(compressedSize, uncompressedSize, crc32, compression, data) {
+    this.compressedSize = compressedSize;
+    this.uncompressedSize = uncompressedSize;
+    this.crc32 = crc32;
+    this.compression = compression;
+    this.compressedContent = data;
+}
+
+CompressedObject.prototype = {
+    /**
+     * Create a worker to get the uncompressed content.
+     * @return {GenericWorker} the worker.
+     */
+    getContentWorker: function () {
+        var worker = new DataWorker(external.Promise.resolve(this.compressedContent))
+            .pipe(this.compression.uncompressWorker())
+            .pipe(new DataLengthProbe("data_length"));
+
+        var that = this;
+        worker.on("end", function () {
+            if (this.streamInfo["data_length"] !== that.uncompressedSize) {
+                throw new Error("Bug : uncompressed data size mismatch");
+            }
+        });
+        return worker;
+    },
+    /**
+     * Create a worker to get the compressed content.
+     * @return {GenericWorker} the worker.
+     */
+    getCompressedWorker: function () {
+        return new DataWorker(external.Promise.resolve(this.compressedContent))
+            .withStreamInfo("compressedSize", this.compressedSize)
+            .withStreamInfo("uncompressedSize", this.uncompressedSize)
+            .withStreamInfo("crc32", this.crc32)
+            .withStreamInfo("compression", this.compression)
+        ;
+    }
+};
+
+/**
+ * Chain the given worker with other workers to compress the content with the
+ * given compression.
+ * @param {GenericWorker} uncompressedWorker the worker to pipe.
+ * @param {Object} compression the compression object.
+ * @param {Object} compressionOptions the options to use when compressing.
+ * @return {GenericWorker} the new worker compressing the content.
+ */
+CompressedObject.createWorkerFrom = function (uncompressedWorker, compression, compressionOptions) {
+    return uncompressedWorker
+        .pipe(new Crc32Probe())
+        .pipe(new DataLengthProbe("uncompressedSize"))
+        .pipe(compression.compressWorker(compressionOptions))
+        .pipe(new DataLengthProbe("compressedSize"))
+        .withStreamInfo("compression", compression);
+};
+
+module.exports = CompressedObject;

libs/jszip/lib/compressions.js

@@ -0,0 +1,14 @@
+"use strict";
+
+var GenericWorker = require("./stream/GenericWorker");
+
+exports.STORE = {
+    magic: "\x00\x00",
+    compressWorker : function () {
+        return new GenericWorker("STORE compression");
+    },
+    uncompressWorker : function () {
+        return new GenericWorker("STORE decompression");
+    }
+};
+exports.DEFLATE = require("./flate");

libs/jszip/lib/crc32.js

@@ -0,0 +1,77 @@
+"use strict";
+
+var utils = require("./utils");
+
+/**
+ * The following functions come from pako, from pako/lib/zlib/crc32.js
+ * released under the MIT license, see pako https://github.com/nodeca/pako/
+ */
+
+// Use ordinary array, since untyped makes no boost here
+function makeTable() {
+    var c, table = [];
+
+    for(var n =0; n < 256; n++){
+        c = n;
+        for(var k =0; k < 8; k++){
+            c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
+        }
+        table[n] = c;
+    }
+
+    return table;
+}
+
+// Create table on load. Just 255 signed longs. Not a problem.
+var crcTable = makeTable();
+
+
+function crc32(crc, buf, len, pos) {
+    var t = crcTable, end = pos + len;
+
+    crc = crc ^ (-1);
+
+    for (var i = pos; i < end; i++ ) {
+        crc = (crc >>> 8) ^ t[(crc ^ buf[i]) & 0xFF];
+    }
+
+    return (crc ^ (-1)); // >>> 0;
+}
+
+// That's all for the pako functions.
+
+/**
+ * Compute the crc32 of a string.
+ * This is almost the same as the function crc32, but for strings. Using the
+ * same function for the two use cases leads to horrible performances.
+ * @param {Number} crc the starting value of the crc.
+ * @param {String} str the string to use.
+ * @param {Number} len the length of the string.
+ * @param {Number} pos the starting position for the crc32 computation.
+ * @return {Number} the computed crc32.
+ */
+function crc32str(crc, str, len, pos) {
+    var t = crcTable, end = pos + len;
+
+    crc = crc ^ (-1);
+
+    for (var i = pos; i < end; i++ ) {
+        crc = (crc >>> 8) ^ t[(crc ^ str.charCodeAt(i)) & 0xFF];
+    }
+
+    return (crc ^ (-1)); // >>> 0;
+}
+
+module.exports = function crc32wrapper(input, crc) {
+    if (typeof input === "undefined" || !input.length) {
+        return 0;
+    }
+
+    var isArray = utils.getTypeOf(input) !== "string";
+
+    if(isArray) {
+        return crc32(crc|0, input, input.length, 0);
+    } else {
+        return crc32str(crc|0, input, input.length, 0);
+    }
+};

libs/jszip/lib/defaults.js

@@ -0,0 +1,11 @@
+"use strict";
+exports.base64 = false;
+exports.binary = false;
+exports.dir = false;
+exports.createFolders = true;
+exports.date = null;
+exports.compression = null;
+exports.compressionOptions = null;
+exports.comment = null;
+exports.unixPermissions = null;
+exports.dosPermissions = null;

libs/jszip/lib/external.js

@@ -0,0 +1,18 @@
+"use strict";
+
+// load the global object first:
+// - it should be better integrated in the system (unhandledRejection in node)
+// - the environment may have a custom Promise implementation (see zone.js)
+var ES6Promise = null;
+if (typeof Promise !== "undefined") {
+    ES6Promise = Promise;
+} else {
+    ES6Promise = require("lie");
+}
+
+/**
+ * Let the user use/change some implementations.
+ */
+module.exports = {
+    Promise: ES6Promise
+};

libs/jszip/lib/flate.js

@@ -0,0 +1,85 @@
+"use strict";
+var USE_TYPEDARRAY = (typeof Uint8Array !== "undefined") && (typeof Uint16Array !== "undefined") && (typeof Uint32Array !== "undefined");
+
+var pako = require("pako");
+var utils = require("./utils");
+var GenericWorker = require("./stream/GenericWorker");
+
+var ARRAY_TYPE = USE_TYPEDARRAY ? "uint8array" : "array";
+
+exports.magic = "\x08\x00";
+
+/**
+ * Create a worker that uses pako to inflate/deflate.
+ * @constructor
+ * @param {String} action the name of the pako function to call : either "Deflate" or "Inflate".
+ * @param {Object} options the options to use when (de)compressing.
+ */
+function FlateWorker(action, options) {
+    GenericWorker.call(this, "FlateWorker/" + action);
+
+    this._pako = null;
+    this._pakoAction = action;
+    this._pakoOptions = options;
+    // the `meta` object from the last chunk received
+    // this allow this worker to pass around metadata
+    this.meta = {};
+}
+
+utils.inherits(FlateWorker, GenericWorker);
+
+/**
+ * @see GenericWorker.processChunk
+ */
+FlateWorker.prototype.processChunk = function (chunk) {
+    this.meta = chunk.meta;
+    if (this._pako === null) {
+        this._createPako();
+    }
+    this._pako.push(utils.transformTo(ARRAY_TYPE, chunk.data), false);
+};
+
+/**
+ * @see GenericWorker.flush
+ */
+FlateWorker.prototype.flush = function () {
+    GenericWorker.prototype.flush.call(this);
+    if (this._pako === null) {
+        this._createPako();
+    }
+    this._pako.push([], true);
+};
+/**
+ * @see GenericWorker.cleanUp
+ */
+FlateWorker.prototype.cleanUp = function () {
+    GenericWorker.prototype.cleanUp.call(this);
+    this._pako = null;
+};
+
+/**
+ * Create the _pako object.
+ * TODO: lazy-loading this object isn't the best solution but it's the
+ * quickest. The best solution is to lazy-load the worker list. See also the
+ * issue #446.
+ */
+FlateWorker.prototype._createPako = function () {
+    this._pako = new pako[this._pakoAction]({
+        raw: true,
+        level: this._pakoOptions.level || -1 // default compression
+    });
+    var self = this;
+    this._pako.onData = function(data) {
+        self.push({
+            data : data,
+            meta : self.meta
+        });
+    };
+};
+
+exports.compressWorker = function (compressionOptions) {
+    return new FlateWorker("Deflate", compressionOptions);
+};
+exports.uncompressWorker = function () {
+    return new FlateWorker("Inflate", {});
+};

libs/jszip/lib/generate/ZipFileWorker.js

@@ -0,0 +1,539 @@
+"use strict";
+
+var utils = require("../utils");
+var GenericWorker = require("../stream/GenericWorker");
+var utf8 = require("../utf8");
+var crc32 = require("../crc32");
+var signature = require("../signature");
+
+/**
+ * Transform an integer into a string in hexadecimal.
+ * @private
+ * @param {number} dec the number to convert.
+ * @param {number} bytes the number of bytes to generate.
+ * @returns {string} the result.
+ */
+var decToHex = function(dec, bytes) {
+    var hex = "", i;
+    for (i = 0; i < bytes; i++) {
+        hex += String.fromCharCode(dec & 0xff);
+        dec = dec >>> 8;
+    }
+    return hex;
+};
+
+/**
+ * Generate the 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) {
+    // 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 {Object} streamInfo the hash with information about the compressed file.
+ * @param {Boolean} streamedContent is the content streamed ?
+ * @param {Boolean} streamingEnded is the stream finished ?
+ * @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(streamInfo, streamedContent, streamingEnded, offset, platform, encodeFileName) {
+    var file = streamInfo["file"],
+        compression = streamInfo["compression"],
+        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,
+        dosTime,
+        dosDate,
+        extraFields = "",
+        unicodePathExtraField = "",
+        unicodeCommentExtraField = "",
+        dir = file.dir,
+        date = file.date;
+
+
+    var dataInfo = {
+        crc32 : 0,
+        compressedSize : 0,
+        uncompressedSize : 0
+    };
+
+    // if the content is streamed, the sizes/crc32 are only available AFTER
+    // the end of the stream.
+    if (!streamedContent || streamingEnded) {
+        dataInfo.crc32 = streamInfo["crc32"];
+        dataInfo.compressedSize = streamInfo["compressedSize"];
+        dataInfo.uncompressedSize = streamInfo["uncompressedSize"];
+    }
+
+    var bitflag = 0;
+    if (streamedContent) {
+        // Bit 3: the sizes/crc32 are set to zero in the local header.
+        // The correct values are put in the data descriptor immediately
+        // following the compressed data.
+        bitflag |= 0x0008;
+    }
+    if (!useCustomEncoding && (useUTF8ForFileName || useUTF8ForComment)) {
+        // Bit 11: Language encoding flag (EFS).
+        bitflag |= 0x0800;
+    }
+
+
+    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.getUTCHours();
+    dosTime = dosTime << 6;
+    dosTime = dosTime | date.getUTCMinutes();
+    dosTime = dosTime << 5;
+    dosTime = dosTime | date.getUTCSeconds() / 2;
+
+    dosDate = date.getUTCFullYear() - 1980;
+    dosDate = dosDate << 4;
+    dosDate = dosDate | (date.getUTCMonth() + 1);
+    dosDate = dosDate << 5;
+    dosDate = dosDate | date.getUTCDate();
+
+    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(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
+    header += decToHex(bitflag, 2);
+    // compression method
+    header += compression.magic;
+    // last mod file time
+    header += decToHex(dosTime, 2);
+    // last mod file date
+    header += decToHex(dosDate, 2);
+    // crc-32
+    header += decToHex(dataInfo.crc32, 4);
+    // compressed size
+    header += decToHex(dataInfo.compressedSize, 4);
+    // uncompressed size
+    header += decToHex(dataInfo.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
+    };
+};
+
+/**
+ * Generate the EOCD record.
+ * @param {Number} entriesCount the number of entries in the zip file.
+ * @param {Number} centralDirLength the length (in bytes) of the central dir.
+ * @param {Number} localDirLength the length (in bytes) of the local dir.
+ * @param {String} comment the zip file comment as a binary string.
+ * @param {Function} encodeFileName the function to encode the comment.
+ * @return {String} the EOCD record.
+ */
+var generateCentralDirectoryEnd = function (entriesCount, centralDirLength, localDirLength, comment, encodeFileName) {
+    var dirEnd = "";
+    var encodedComment = utils.transformTo("string", encodeFileName(comment));
+
+    // end of central dir signature
+    dirEnd = signature.CENTRAL_DIRECTORY_END +
+        // number of this disk
+        "\x00\x00" +
+        // number of the disk with the start of the central directory
+        "\x00\x00" +
+        // total number of entries in the central directory on this disk
+        decToHex(entriesCount, 2) +
+        // total number of entries in the central directory
+        decToHex(entriesCount, 2) +
+        // size of the central directory   4 bytes
+        decToHex(centralDirLength, 4) +
+        // offset of start of central directory with respect to the starting disk number
+        decToHex(localDirLength, 4) +
+        // .ZIP file comment length
+        decToHex(encodedComment.length, 2) +
+        // .ZIP file comment
+        encodedComment;
+
+    return dirEnd;
+};
+
+/**
+ * Generate data descriptors for a file entry.
+ * @param {Object} streamInfo the hash generated by a worker, containing information
+ * on the file entry.
+ * @return {String} the data descriptors.
+ */
+var generateDataDescriptors = function (streamInfo) {
+    var descriptor = "";
+    descriptor = signature.DATA_DESCRIPTOR +
+        // crc-32                          4 bytes
+        decToHex(streamInfo["crc32"], 4) +
+        // compressed size                 4 bytes
+        decToHex(streamInfo["compressedSize"], 4) +
+        // uncompressed size               4 bytes
+        decToHex(streamInfo["uncompressedSize"], 4);
+
+    return descriptor;
+};
+
+
+/**
+ * A worker to concatenate other workers to create a zip file.
+ * @param {Boolean} streamFiles `true` to stream the content of the files,
+ * `false` to accumulate it.
+ * @param {String} comment the comment to use.
+ * @param {String} platform the platform to use, "UNIX" or "DOS".
+ * @param {Function} encodeFileName the function to encode file names and comments.
+ */
+function ZipFileWorker(streamFiles, comment, platform, encodeFileName) {
+    GenericWorker.call(this, "ZipFileWorker");
+    // The number of bytes written so far. This doesn't count accumulated chunks.
+    this.bytesWritten = 0;
+    // The comment of the zip file
+    this.zipComment = comment;
+    // The platform "generating" the zip file.
+    this.zipPlatform = platform;
+    // the function to encode file names and comments.
+    this.encodeFileName = encodeFileName;
+    // Should we stream the content of the files ?
+    this.streamFiles = streamFiles;
+    // If `streamFiles` is false, we will need to accumulate the content of the
+    // files to calculate sizes / crc32 (and write them *before* the content).
+    // This boolean indicates if we are accumulating chunks (it will change a lot
+    // during the lifetime of this worker).
+    this.accumulate = false;
+    // The buffer receiving chunks when accumulating content.
+    this.contentBuffer = [];
+    // The list of generated directory records.
+    this.dirRecords = [];
+    // The offset (in bytes) from the beginning of the zip file for the current source.
+    this.currentSourceOffset = 0;
+    // The total number of entries in this zip file.
+    this.entriesCount = 0;
+    // the name of the file currently being added, null when handling the end of the zip file.
+    // Used for the emitted metadata.
+    this.currentFile = null;
+
+
+
+    this._sources = [];
+}
+utils.inherits(ZipFileWorker, GenericWorker);
+
+/**
+ * @see GenericWorker.push
+ */
+ZipFileWorker.prototype.push = function (chunk) {
+
+    var currentFilePercent = chunk.meta.percent || 0;
+    var entriesCount = this.entriesCount;
+    var remainingFiles = this._sources.length;
+
+    if(this.accumulate) {
+        this.contentBuffer.push(chunk);
+    } else {
+        this.bytesWritten += chunk.data.length;
+
+        GenericWorker.prototype.push.call(this, {
+            data : chunk.data,
+            meta : {
+                currentFile : this.currentFile,
+                percent : entriesCount ? (currentFilePercent + 100 * (entriesCount - remainingFiles - 1)) / entriesCount : 100
+            }
+        });
+    }
+};
+
+/**
+ * The worker started a new source (an other worker).
+ * @param {Object} streamInfo the streamInfo object from the new source.
+ */
+ZipFileWorker.prototype.openedSource = function (streamInfo) {
+    this.currentSourceOffset = this.bytesWritten;
+    this.currentFile = streamInfo["file"].name;
+
+    var streamedContent = this.streamFiles && !streamInfo["file"].dir;
+
+    // don't stream folders (because they don't have any content)
+    if(streamedContent) {
+        var record = generateZipParts(streamInfo, streamedContent, false, this.currentSourceOffset, this.zipPlatform, this.encodeFileName);
+        this.push({
+            data : record.fileRecord,
+            meta : {percent:0}
+        });
+    } else {
+        // we need to wait for the whole file before pushing anything
+        this.accumulate = true;
+    }
+};
+
+/**
+ * The worker finished a source (an other worker).
+ * @param {Object} streamInfo the streamInfo object from the finished source.
+ */
+ZipFileWorker.prototype.closedSource = function (streamInfo) {
+    this.accumulate = false;
+    var streamedContent = this.streamFiles && !streamInfo["file"].dir;
+    var record = generateZipParts(streamInfo, streamedContent, true, this.currentSourceOffset, this.zipPlatform, this.encodeFileName);
+
+    this.dirRecords.push(record.dirRecord);
+    if(streamedContent) {
+        // after the streamed file, we put data descriptors
+        this.push({
+            data : generateDataDescriptors(streamInfo),
+            meta : {percent:100}
+        });
+    } else {
+        // the content wasn't streamed, we need to push everything now
+        // first the file record, then the content
+        this.push({
+            data : record.fileRecord,
+            meta : {percent:0}
+        });
+        while(this.contentBuffer.length) {
+            this.push(this.contentBuffer.shift());
+        }
+    }
+    this.currentFile = null;
+};
+
+/**
+ * @see GenericWorker.flush
+ */
+ZipFileWorker.prototype.flush = function () {
+
+    var localDirLength = this.bytesWritten;
+    for(var i = 0; i < this.dirRecords.length; i++) {
+        this.push({
+            data : this.dirRecords[i],
+            meta : {percent:100}
+        });
+    }
+    var centralDirLength = this.bytesWritten - localDirLength;
+
+    var dirEnd = generateCentralDirectoryEnd(this.dirRecords.length, centralDirLength, localDirLength, this.zipComment, this.encodeFileName);
+
+    this.push({
+        data : dirEnd,
+        meta : {percent:100}
+    });
+};
+
+/**
+ * Prepare the next source to be read.
+ */
+ZipFileWorker.prototype.prepareNextSource = function () {
+    this.previous = this._sources.shift();
+    this.openedSource(this.previous.streamInfo);
+    if (this.isPaused) {
+        this.previous.pause();
+    } else {
+        this.previous.resume();
+    }
+};
+
+/**
+ * @see GenericWorker.registerPrevious
+ */
+ZipFileWorker.prototype.registerPrevious = function (previous) {
+    this._sources.push(previous);
+    var self = this;
+
+    previous.on("data", function (chunk) {
+        self.processChunk(chunk);
+    });
+    previous.on("end", function () {
+        self.closedSource(self.previous.streamInfo);
+        if(self._sources.length) {
+            self.prepareNextSource();
+        } else {
+            self.end();
+        }
+    });
+    previous.on("error", function (e) {
+        self.error(e);
+    });
+    return this;
+};
+
+/**
+ * @see GenericWorker.resume
+ */
+ZipFileWorker.prototype.resume = function () {
+    if(!GenericWorker.prototype.resume.call(this)) {
+        return false;
+    }
+
+    if (!this.previous && this._sources.length) {
+        this.prepareNextSource();
+        return true;
+    }
+    if (!this.previous && !this._sources.length && !this.generatedError) {
+        this.end();
+        return true;
+    }
+};
+
+/**
+ * @see GenericWorker.error
+ */
+ZipFileWorker.prototype.error = function (e) {
+    var sources = this._sources;
+    if(!GenericWorker.prototype.error.call(this, e)) {
+        return false;
+    }
+    for(var i = 0; i < sources.length; i++) {
+        try {
+            sources[i].error(e);
+        } catch(e) {
+            // the `error` exploded, nothing to do
+        }
+    }
+    return true;
+};
+
+/**
+ * @see GenericWorker.lock
+ */
+ZipFileWorker.prototype.lock = function () {
+    GenericWorker.prototype.lock.call(this);
+    var sources = this._sources;
+    for(var i = 0; i < sources.length; i++) {
+        sources[i].lock();
+    }
+};
+
+module.exports = ZipFileWorker;

libs/jszip/lib/generate/index.js

@@ -0,0 +1,57 @@
+"use strict";
+
+var compressions = require("../compressions");
+var ZipFileWorker = require("./ZipFileWorker");
+
+/**
+ * Find the compression to use.
+ * @param {String} fileCompression the compression defined at the file level, if any.
+ * @param {String} zipCompression the compression defined at the load() level.
+ * @return {Object} the compression object to use.
+ */
+var getCompression = function (fileCompression, zipCompression) {
+
+    var compressionName = fileCompression || zipCompression;
+    var compression = compressions[compressionName];
+    if (!compression) {
+        throw new Error(compressionName + " is not a valid compression method !");
+    }
+    return compression;
+};
+
+/**
+ * Create a worker to generate a zip file.
+ * @param {JSZip} zip the JSZip instance at the right root level.
+ * @param {Object} options to generate the zip file.
+ * @param {String} comment the comment to use.
+ */
+exports.generateWorker = function (zip, options, comment) {
+
+    var zipFileWorker = new ZipFileWorker(options.streamFiles, comment, options.platform, options.encodeFileName);
+    var entriesCount = 0;
+    try {
+
+        zip.forEach(function (relativePath, file) {
+            entriesCount++;
+            var compression = getCompression(file.options.compression, options.compression);
+            var compressionOptions = file.options.compressionOptions || options.compressionOptions || {};
+            var dir = file.dir, date = file.date;
+
+            file._compressWorker(compression, compressionOptions)
+                .withStreamInfo("file", {
+                    name : relativePath,
+                    dir : dir,
+                    date : date,
+                    comment : file.comment || "",
+                    unixPermissions : file.unixPermissions,
+                    dosPermissions : file.dosPermissions
+                })
+                .pipe(zipFileWorker);
+        });
+        zipFileWorker.entriesCount = entriesCount;
+    } catch (e) {
+        zipFileWorker.error(e);
+    }
+
+    return zipFileWorker;
+};

libs/jszip/lib/index.js

@@ -0,0 +1,55 @@
+"use strict";
+
+/**
+ * Representation a of zip file in js
+ * @constructor
+ */
+function JSZip() {
+    // if this constructor is used without `new`, it adds `new` before itself:
+    if(!(this instanceof JSZip)) {
+        return new JSZip();
+    }
+
+    if(arguments.length) {
+        throw new Error("The constructor with parameters has been removed in JSZip 3.0, please check the upgrade guide.");
+    }
+
+    // object containing the files :
+    // {
+    //   "folder/" : {...},
+    //   "folder/data.txt" : {...}
+    // }
+    // NOTE: we use a null prototype because we do not
+    // want filenames like "toString" coming from a zip file
+    // to overwrite methods and attributes in a normal Object.
+    this.files = Object.create(null);
+
+    this.comment = null;
+
+    // Where we are in the hierarchy
+    this.root = "";
+    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.loadAsync = require("./load");
+JSZip.support = require("./support");
+JSZip.defaults = require("./defaults");
+
+// TODO find a better way to handle this version,
+// a require('package.json').version doesn't work with webpack, see #327
+JSZip.version = "3.10.1";
+
+JSZip.loadAsync = function (content, options) {
+    return new JSZip().loadAsync(content, options);
+};
+
+JSZip.external = require("./external");
+module.exports = JSZip;

libs/jszip/lib/license_header.js

@@ -0,0 +1,11 @@
+/*!
+
+JSZip v__VERSION__ - A JavaScript class for generating and reading zip files
+<http://stuartk.com/jszip>
+
+(c) 2009-2016 Stuart Knightley <stuart [at] stuartk.com>
+Dual licenced under the MIT license or GPLv3. See https://raw.github.com/Stuk/jszip/main/LICENSE.markdown.
+
+JSZip uses the library pako released under the MIT license :
+https://github.com/nodeca/pako/blob/main/LICENSE
+*/

libs/jszip/lib/load.js

@@ -0,0 +1,88 @@
+"use strict";
+var utils = require("./utils");
+var external = require("./external");
+var utf8 = require("./utf8");
+var ZipEntries = require("./zipEntries");
+var Crc32Probe = require("./stream/Crc32Probe");
+var nodejsUtils = require("./nodejsUtils");
+
+/**
+ * Check the CRC32 of an entry.
+ * @param {ZipEntry} zipEntry the zip entry to check.
+ * @return {Promise} the result.
+ */
+function checkEntryCRC32(zipEntry) {
+    return new external.Promise(function (resolve, reject) {
+        var worker = zipEntry.decompressed.getContentWorker().pipe(new Crc32Probe());
+        worker.on("error", function (e) {
+            reject(e);
+        })
+            .on("end", function () {
+                if (worker.streamInfo.crc32 !== zipEntry.decompressed.crc32) {
+                    reject(new Error("Corrupted zip : CRC32 mismatch"));
+                } else {
+                    resolve();
+                }
+            })
+            .resume();
+    });
+}
+
+module.exports = function (data, options) {
+    var zip = this;
+    options = utils.extend(options || {}, {
+        base64: false,
+        checkCRC32: false,
+        optimizedBinaryString: false,
+        createFolders: false,
+        decodeFileName: utf8.utf8decode
+    });
+
+    if (nodejsUtils.isNode && nodejsUtils.isStream(data)) {
+        return external.Promise.reject(new Error("JSZip can't accept a stream when loading a zip file."));
+    }
+
+    return utils.prepareContent("the loaded zip file", data, true, options.optimizedBinaryString, options.base64)
+        .then(function (data) {
+            var zipEntries = new ZipEntries(options);
+            zipEntries.load(data);
+            return zipEntries;
+        }).then(function checkCRC32(zipEntries) {
+            var promises = [external.Promise.resolve(zipEntries)];
+            var files = zipEntries.files;
+            if (options.checkCRC32) {
+                for (var i = 0; i < files.length; i++) {
+                    promises.push(checkEntryCRC32(files[i]));
+                }
+            }
+            return external.Promise.all(promises);
+        }).then(function addFiles(results) {
+            var zipEntries = results.shift();
+            var files = zipEntries.files;
+            for (var i = 0; i < files.length; i++) {
+                var input = files[i];
+
+                var unsafeName = input.fileNameStr;
+                var safeName = utils.resolve(input.fileNameStr);
+
+                zip.file(safeName, 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 (!input.dir) {
+                    zip.file(safeName).unsafeOriginalName = unsafeName;
+                }
+            }
+            if (zipEntries.zipComment.length) {
+                zip.comment = zipEntries.zipComment;
+            }
+
+            return zip;
+        });
+};

libs/jszip/lib/nodejs/NodejsStreamInputAdapter.js

@@ -0,0 +1,74 @@
+"use strict";
+
+var utils = require("../utils");
+var GenericWorker = require("../stream/GenericWorker");
+
+/**
+ * A worker that use a nodejs stream as source.
+ * @constructor
+ * @param {String} filename the name of the file entry for this stream.
+ * @param {Readable} stream the nodejs stream.
+ */
+function NodejsStreamInputAdapter(filename, stream) {
+    GenericWorker.call(this, "Nodejs stream input adapter for " + filename);
+    this._upstreamEnded = false;
+    this._bindStream(stream);
+}
+
+utils.inherits(NodejsStreamInputAdapter, GenericWorker);
+
+/**
+ * Prepare the stream and bind the callbacks on it.
+ * Do this ASAP on node 0.10 ! A lazy binding doesn't always work.
+ * @param {Stream} stream the nodejs stream to use.
+ */
+NodejsStreamInputAdapter.prototype._bindStream = function (stream) {
+    var self = this;
+    this._stream = stream;
+    stream.pause();
+    stream
+        .on("data", function (chunk) {
+            self.push({
+                data: chunk,
+                meta : {
+                    percent : 0
+                }
+            });
+        })
+        .on("error", function (e) {
+            if(self.isPaused) {
+                this.generatedError = e;
+            } else {
+                self.error(e);
+            }
+        })
+        .on("end", function () {
+            if(self.isPaused) {
+                self._upstreamEnded = true;
+            } else {
+                self.end();
+            }
+        });
+};
+NodejsStreamInputAdapter.prototype.pause = function () {
+    if(!GenericWorker.prototype.pause.call(this)) {
+        return false;
+    }
+    this._stream.pause();
+    return true;
+};
+NodejsStreamInputAdapter.prototype.resume = function () {
+    if(!GenericWorker.prototype.resume.call(this)) {
+        return false;
+    }
+
+    if(this._upstreamEnded) {
+        this.end();
+    } else {
+        this._stream.resume();
+    }
+
+    return true;
+};
+
+module.exports = NodejsStreamInputAdapter;

libs/jszip/lib/nodejs/NodejsStreamOutputAdapter.js

@@ -0,0 +1,42 @@
+"use strict";
+
+var Readable = require("readable-stream").Readable;
+
+var utils = require("../utils");
+utils.inherits(NodejsStreamOutputAdapter, Readable);
+
+/**
+* A nodejs stream using a worker as source.
+* @see the SourceWrapper in http://nodejs.org/api/stream.html
+* @constructor
+* @param {StreamHelper} helper the helper wrapping the worker
+* @param {Object} options the nodejs stream options
+* @param {Function} updateCb the update callback.
+*/
+function NodejsStreamOutputAdapter(helper, options, updateCb) {
+    Readable.call(this, options);
+    this._helper = helper;
+
+    var self = this;
+    helper.on("data", function (data, meta) {
+        if (!self.push(data)) {
+            self._helper.pause();
+        }
+        if(updateCb) {
+            updateCb(meta);
+        }
+    })
+        .on("error", function(e) {
+            self.emit("error", e);
+        })
+        .on("end", function () {
+            self.push(null);
+        });
+}
+
+
+NodejsStreamOutputAdapter.prototype._read = function() {
+    this._helper.resume();
+};
+
+module.exports = NodejsStreamOutputAdapter;

libs/jszip/lib/nodejsUtils.js

@@ -0,0 +1,57 @@
+"use strict";
+
+module.exports = {
+    /**
+     * True if this is running in Nodejs, will be undefined in a browser.
+     * In a browser, browserify won't include this file and the whole module
+     * will be resolved an empty object.
+     */
+    isNode : typeof Buffer !== "undefined",
+    /**
+     * Create a new nodejs Buffer from an existing content.
+     * @param {Object} data the data to pass to the constructor.
+     * @param {String} encoding the encoding to use.
+     * @return {Buffer} a new Buffer.
+     */
+    newBufferFrom: function(data, encoding) {
+        if (Buffer.from && Buffer.from !== Uint8Array.from) {
+            return Buffer.from(data, encoding);
+        } else {
+            if (typeof data === "number") {
+                // Safeguard for old Node.js versions. On newer versions,
+                // Buffer.from(number) / Buffer(number, encoding) already throw.
+                throw new Error("The \"data\" argument must not be a number");
+            }
+            return new Buffer(data, encoding);
+        }
+    },
+    /**
+     * Create a new nodejs Buffer with the specified size.
+     * @param {Integer} size the size of the buffer.
+     * @return {Buffer} a new Buffer.
+     */
+    allocBuffer: function (size) {
+        if (Buffer.alloc) {
+            return Buffer.alloc(size);
+        } else {
+            var buf = new Buffer(size);
+            buf.fill(0);
+            return buf;
+        }
+    },
+    /**
+     * Find out if an object is a Buffer.
+     * @param {Object} b the object to test.
+     * @return {Boolean} true if the object is a Buffer, false otherwise.
+     */
+    isBuffer : function(b){
+        return Buffer.isBuffer(b);
+    },
+
+    isStream : function (obj) {
+        return obj &&
+            typeof obj.on === "function" &&
+            typeof obj.pause === "function" &&
+            typeof obj.resume === "function";
+    }
+};

libs/jszip/lib/object.js

@@ -0,0 +1,384 @@
+"use strict";
+var utf8 = require("./utf8");
+var utils = require("./utils");
+var GenericWorker = require("./stream/GenericWorker");
+var StreamHelper = require("./stream/StreamHelper");
+var defaults = require("./defaults");
+var CompressedObject = require("./compressedObject");
+var ZipObject = require("./zipObject");
+var generate = require("./generate");
+var nodejsUtils = require("./nodejsUtils");
+var NodejsStreamInputAdapter = require("./nodejs/NodejsStreamInputAdapter");
+
+
+/**
+ * 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} originalOptions the options of the file
+ * @return {Object} the new file.
+ */
+var fileAdd = function(name, data, originalOptions) {
+    // be sure sub folders exist
+    var dataType = utils.getTypeOf(data),
+        parent;
+
+
+    /*
+     * Correct options.
+     */
+
+    var o = utils.extend(originalOptions || {}, defaults);
+    o.date = o.date || new Date();
+    if (o.compression !== null) {
+        o.compression = o.compression.toUpperCase();
+    }
+
+    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);
+    }
+
+    var isUnicodeString = dataType === "string" && o.binary === false && o.base64 === false;
+    if (!originalOptions || typeof originalOptions.binary === "undefined") {
+        o.binary = !isUnicodeString;
+    }
+
+
+    var isCompressedEmpty = (data instanceof CompressedObject) && data.uncompressedSize === 0;
+
+    if (isCompressedEmpty || o.dir || !data || data.length === 0) {
+        o.base64 = false;
+        o.binary = true;
+        data = "";
+        o.compression = "STORE";
+        dataType = "string";
+    }
+
+    /*
+     * Convert content to fit.
+     */
+
+    var zipObjectContent = null;
+    if (data instanceof CompressedObject || data instanceof GenericWorker) {
+        zipObjectContent = data;
+    } else if (nodejsUtils.isNode && nodejsUtils.isStream(data)) {
+        zipObjectContent = new NodejsStreamInputAdapter(name, data);
+    } else {
+        zipObjectContent = utils.prepareContent(name, data, o.binary, o.optimizedBinaryString, o.base64);
+    }
+
+    var object = new ZipObject(name, zipObjectContent, o);
+    this.files[name] = object;
+    /*
+    TODO: we can't throw an exception because we have async promises
+    (we can have a promise of a Date() for example) but returning a
+    promise is useless because file(name, data) returns the JSZip
+    object for chaining. Should we break that to allow the user
+    to catch the error ?
+
+    return external.Promise.resolve(zipObjectContent)
+    .then(function () {
+        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 : defaults.createFolders;
+
+    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];
+};
+
+/**
+* Cross-window, cross-Node-context regular expression detection
+* @param  {Object}  object Anything
+* @return {Boolean}        true if the object is a regular expression,
+* false otherwise
+*/
+function isRegExp(object) {
+    return Object.prototype.toString.call(object) === "[object RegExp]";
+}
+
+// return the actual prototype of JSZip
+var out = {
+    /**
+     * @see loadAsync
+     */
+    load: function() {
+        throw new Error("This method has been removed in JSZip 3.0, please check the upgrade guide.");
+    },
+
+
+    /**
+     * Call a callback function for each entry at this folder level.
+     * @param {Function} cb the callback function:
+     * function (relativePath, file) {...}
+     * It takes 2 arguments : the relative path and the file.
+     */
+    forEach: function(cb) {
+        var filename, relativePath, file;
+        // ignore warning about unwanted properties because this.files is a null prototype object
+        /* eslint-disable-next-line guard-for-in */
+        for (filename in this.files) {
+            file = this.files[filename];
+            relativePath = filename.slice(this.root.length, filename.length);
+            if (relativePath && filename.slice(0, this.root.length) === this.root) { // the file is in the current root
+                cb(relativePath, file); // TODO reverse the parameters ? need to be clean AND consistent with the filter search fn...
+            }
+        }
+    },
+
+    /**
+     * 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 = [];
+        this.forEach(function (relativePath, entry) {
+            if (search(relativePath, entry)) { // the file matches the function
+                result.push(entry);
+            }
+
+        });
+        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 (isRegExp(name)) {
+                var regexp = name;
+                return this.filter(function(relativePath, file) {
+                    return !file.dir && regexp.test(relativePath);
+                });
+            }
+            else { // text
+                var obj = this.files[this.root + name];
+                if (obj && !obj.dir) {
+                    return obj;
+                } else {
+                    return 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 (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;
+    },
+
+    /**
+     * @deprecated This method has been removed in JSZip 3.0, please check the upgrade guide.
+     */
+    generate: function() {
+        throw new Error("This method has been removed in JSZip 3.0, please check the upgrade guide.");
+    },
+
+    /**
+     * Generate the complete zip file as an internal stream.
+     * @param {Object} options the options to generate the zip file :
+     * - compression, "STORE" by default.
+     * - type, "base64" by default. Values are : string, base64, uint8array, arraybuffer, blob.
+     * @return {StreamHelper} the streamed zip file.
+     */
+    generateInternalStream: function(options) {
+        var worker, opts = {};
+        try {
+            opts = utils.extend(options || {}, {
+                streamFiles: false,
+                compression: "STORE",
+                compressionOptions : null,
+                type: "",
+                platform: "DOS",
+                comment: null,
+                mimeType: "application/zip",
+                encodeFileName: utf8.utf8encode
+            });
+
+            opts.type = opts.type.toLowerCase();
+            opts.compression = opts.compression.toUpperCase();
+
+            // "binarystring" is preferred but the internals use "string".
+            if(opts.type === "binarystring") {
+                opts.type = "string";
+            }
+
+            if (!opts.type) {
+                throw new Error("No output type specified.");
+            }
+
+            utils.checkSupport(opts.type);
+
+            // accept nodejs `process.platform`
+            if(
+                opts.platform === "darwin" ||
+                opts.platform === "freebsd" ||
+                opts.platform === "linux" ||
+                opts.platform === "sunos"
+            ) {
+                opts.platform = "UNIX";
+            }
+            if (opts.platform === "win32") {
+                opts.platform = "DOS";
+            }
+
+            var comment = opts.comment || this.comment || "";
+            worker = generate.generateWorker(this, opts, comment);
+        } catch (e) {
+            worker = new GenericWorker("error");
+            worker.error(e);
+        }
+        return new StreamHelper(worker, opts.type || "string", opts.mimeType);
+    },
+    /**
+     * Generate the complete zip file asynchronously.
+     * @see generateInternalStream
+     */
+    generateAsync: function(options, onUpdate) {
+        return this.generateInternalStream(options).accumulate(onUpdate);
+    },
+    /**
+     * Generate the complete zip file asynchronously.
+     * @see generateInternalStream
+     */
+    generateNodeStream: function(options, onUpdate) {
+        options = options || {};
+        if (!options.type) {
+            options.type = "nodebuffer";
+        }
+        return this.generateInternalStream(options).toNodejsStream(onUpdate);
+    }
+};
+module.exports = out;

libs/jszip/lib/readable-stream-browser.js

@@ -0,0 +1,10 @@
+"use strict";
+/*
+ * This file is used by module bundlers (browserify/webpack/etc) when
+ * including a stream implementation. We use "readable-stream" to get a
+ * consistent behavior between nodejs versions but bundlers often have a shim
+ * for "stream". Using this shim greatly improve the compatibility and greatly
+ * reduce the final size of the bundle (only one stream implementation, not
+ * two).
+ */
+module.exports = require("stream");

libs/jszip/lib/reader/ArrayReader.js

@@ -0,0 +1,57 @@
+"use strict";
+var DataReader = require("./DataReader");
+var utils = require("../utils");
+
+function ArrayReader(data) {
+    DataReader.call(this, data);
+    for(var i = 0; i < this.data.length; i++) {
+        data[i] = data[i] & 0xFF;
+    }
+}
+utils.inherits(ArrayReader, 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.readAndCheckSignature
+ */
+ArrayReader.prototype.readAndCheckSignature = function (sig) {
+    var sig0 = sig.charCodeAt(0),
+        sig1 = sig.charCodeAt(1),
+        sig2 = sig.charCodeAt(2),
+        sig3 = sig.charCodeAt(3),
+        data = this.readData(4);
+    return sig0 === data[0] && sig1 === data[1] && sig2 === data[2] && sig3 === data[3];
+};
+/**
+ * @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;

libs/jszip/lib/reader/DataReader.js

@@ -0,0 +1,116 @@
+"use strict";
+var utils = require("../utils");
+
+function DataReader(data) {
+    this.data = data; // type : see implementation
+    this.length = data.length;
+    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 specified 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() {
+        // 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() {
+        // see implementations
+    },
+    /**
+     * Find the last occurrence of a zip signature (4 bytes).
+     * @param {string} sig the signature to find.
+     * @return {number} the index of the last occurrence, -1 if not found.
+     */
+    lastIndexOfSignature: function() {
+        // see implementations
+    },
+    /**
+     * Read the signature (4 bytes) at the current position and compare it with sig.
+     * @param {string} sig the expected signature
+     * @return {boolean} true if the signature matches, false otherwise.
+     */
+    readAndCheckSignature: function() {
+        // see implementations
+    },
+    /**
+     * Get the next date.
+     * @return {Date} the date.
+     */
+    readDate: function() {
+        var dostime = this.readInt(4);
+        return new Date(Date.UTC(
+            ((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;

libs/jszip/lib/reader/NodeBufferReader.js

@@ -0,0 +1,19 @@
+"use strict";
+var Uint8ArrayReader = require("./Uint8ArrayReader");
+var utils = require("../utils");
+
+function NodeBufferReader(data) {
+    Uint8ArrayReader.call(this, data);
+}
+utils.inherits(NodeBufferReader, 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;

libs/jszip/lib/reader/StringReader.js

@@ -0,0 +1,38 @@
+"use strict";
+var DataReader = require("./DataReader");
+var utils = require("../utils");
+
+function StringReader(data) {
+    DataReader.call(this, data);
+}
+utils.inherits(StringReader, 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.readAndCheckSignature
+ */
+StringReader.prototype.readAndCheckSignature = function (sig) {
+    var data = this.readData(4);
+    return sig === data;
+};
+/**
+ * @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;

libs/jszip/lib/reader/Uint8ArrayReader.js

@@ -0,0 +1,22 @@
+"use strict";
+var ArrayReader = require("./ArrayReader");
+var utils = require("../utils");
+
+function Uint8ArrayReader(data) {
+    ArrayReader.call(this, data);
+}
+utils.inherits(Uint8ArrayReader, 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;

libs/jszip/lib/reader/readerFor.js

@@ -0,0 +1,28 @@
+"use strict";
+
+var utils = require("../utils");
+var support = require("../support");
+var ArrayReader = require("./ArrayReader");
+var StringReader = require("./StringReader");
+var NodeBufferReader = require("./NodeBufferReader");
+var Uint8ArrayReader = require("./Uint8ArrayReader");
+
+/**
+ * Create a reader adapted to the data.
+ * @param {String|ArrayBuffer|Uint8Array|Buffer} data the data to read.
+ * @return {DataReader} the data reader.
+ */
+module.exports = function (data) {
+    var type = utils.getTypeOf(data);
+    utils.checkSupport(type);
+    if (type === "string" && !support.uint8array) {
+        return new StringReader(data);
+    }
+    if (type === "nodebuffer") {
+        return new NodeBufferReader(data);
+    }
+    if (support.uint8array) {
+        return new Uint8ArrayReader(utils.transformTo("uint8array", data));
+    }
+    return new ArrayReader(utils.transformTo("array", data));
+};

libs/jszip/lib/signature.js

@@ -0,0 +1,7 @@
+"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";

libs/jszip/lib/stream/ConvertWorker.js

@@ -0,0 +1,26 @@
+"use strict";
+
+var GenericWorker = require("./GenericWorker");
+var utils = require("../utils");
+
+/**
+ * A worker which convert chunks to a specified type.
+ * @constructor
+ * @param {String} destType the destination type.
+ */
+function ConvertWorker(destType) {
+    GenericWorker.call(this, "ConvertWorker to " + destType);
+    this.destType = destType;
+}
+utils.inherits(ConvertWorker, GenericWorker);
+
+/**
+ * @see GenericWorker.processChunk
+ */
+ConvertWorker.prototype.processChunk = function (chunk) {
+    this.push({
+        data : utils.transformTo(this.destType, chunk.data),
+        meta : chunk.meta
+    });
+};
+module.exports = ConvertWorker;

libs/jszip/lib/stream/Crc32Probe.js

@@ -0,0 +1,24 @@
+"use strict";
+
+var GenericWorker = require("./GenericWorker");
+var crc32 = require("../crc32");
+var utils = require("../utils");
+
+/**
+ * A worker which calculate the crc32 of the data flowing through.
+ * @constructor
+ */
+function Crc32Probe() {
+    GenericWorker.call(this, "Crc32Probe");
+    this.withStreamInfo("crc32", 0);
+}
+utils.inherits(Crc32Probe, GenericWorker);
+
+/**
+ * @see GenericWorker.processChunk
+ */
+Crc32Probe.prototype.processChunk = function (chunk) {
+    this.streamInfo.crc32 = crc32(chunk.data, this.streamInfo.crc32 || 0);
+    this.push(chunk);
+};
+module.exports = Crc32Probe;

libs/jszip/lib/stream/DataLengthProbe.js

@@ -0,0 +1,29 @@
+"use strict";
+
+var utils = require("../utils");
+var GenericWorker = require("./GenericWorker");
+
+/**
+ * A worker which calculate the total length of the data flowing through.
+ * @constructor
+ * @param {String} propName the name used to expose the length
+ */
+function DataLengthProbe(propName) {
+    GenericWorker.call(this, "DataLengthProbe for " + propName);
+    this.propName = propName;
+    this.withStreamInfo(propName, 0);
+}
+utils.inherits(DataLengthProbe, GenericWorker);
+
+/**
+ * @see GenericWorker.processChunk
+ */
+DataLengthProbe.prototype.processChunk = function (chunk) {
+    if(chunk) {
+        var length = this.streamInfo[this.propName] || 0;
+        this.streamInfo[this.propName] = length + chunk.data.length;
+    }
+    GenericWorker.prototype.processChunk.call(this, chunk);
+};
+module.exports = DataLengthProbe;
+

libs/jszip/lib/stream/DataWorker.js

@@ -0,0 +1,116 @@
+"use strict";
+
+var utils = require("../utils");
+var GenericWorker = require("./GenericWorker");
+
+// the size of the generated chunks
+// TODO expose this as a public variable
+var DEFAULT_BLOCK_SIZE = 16 * 1024;
+
+/**
+ * A worker that reads a content and emits chunks.
+ * @constructor
+ * @param {Promise} dataP the promise of the data to split
+ */
+function DataWorker(dataP) {
+    GenericWorker.call(this, "DataWorker");
+    var self = this;
+    this.dataIsReady = false;
+    this.index = 0;
+    this.max = 0;
+    this.data = null;
+    this.type = "";
+
+    this._tickScheduled = false;
+
+    dataP.then(function (data) {
+        self.dataIsReady = true;
+        self.data = data;
+        self.max = data && data.length || 0;
+        self.type = utils.getTypeOf(data);
+        if(!self.isPaused) {
+            self._tickAndRepeat();
+        }
+    }, function (e) {
+        self.error(e);
+    });
+}
+
+utils.inherits(DataWorker, GenericWorker);
+
+/**
+ * @see GenericWorker.cleanUp
+ */
+DataWorker.prototype.cleanUp = function () {
+    GenericWorker.prototype.cleanUp.call(this);
+    this.data = null;
+};
+
+/**
+ * @see GenericWorker.resume
+ */
+DataWorker.prototype.resume = function () {
+    if(!GenericWorker.prototype.resume.call(this)) {
+        return false;
+    }
+
+    if (!this._tickScheduled && this.dataIsReady) {
+        this._tickScheduled = true;
+        utils.delay(this._tickAndRepeat, [], this);
+    }
+    return true;
+};
+
+/**
+ * Trigger a tick a schedule an other call to this function.
+ */
+DataWorker.prototype._tickAndRepeat = function() {
+    this._tickScheduled = false;
+    if(this.isPaused || this.isFinished) {
+        return;
+    }
+    this._tick();
+    if(!this.isFinished) {
+        utils.delay(this._tickAndRepeat, [], this);
+        this._tickScheduled = true;
+    }
+};
+
+/**
+ * Read and push a chunk.
+ */
+DataWorker.prototype._tick = function() {
+
+    if(this.isPaused || this.isFinished) {
+        return false;
+    }
+
+    var size = DEFAULT_BLOCK_SIZE;
+    var data = null, nextIndex = Math.min(this.max, this.index + size);
+    if (this.index >= this.max) {
+        // EOF
+        return this.end();
+    } else {
+        switch(this.type) {
+        case "string":
+            data = this.data.substring(this.index, nextIndex);
+            break;
+        case "uint8array":
+            data = this.data.subarray(this.index, nextIndex);
+            break;
+        case "array":
+        case "nodebuffer":
+            data = this.data.slice(this.index, nextIndex);
+            break;
+        }
+        this.index = nextIndex;
+        return this.push({
+            data : data,
+            meta : {
+                percent : this.max ? this.index / this.max * 100 : 0
+            }
+        });
+    }
+};
+
+module.exports = DataWorker;

libs/jszip/lib/stream/GenericWorker.js

@@ -0,0 +1,263 @@
+"use strict";
+
+/**
+ * A worker that does nothing but passing chunks to the next one. This is like
+ * a nodejs stream but with some differences. On the good side :
+ * - it works on IE 6-9 without any issue / polyfill
+ * - it weights less than the full dependencies bundled with browserify
+ * - it forwards errors (no need to declare an error handler EVERYWHERE)
+ *
+ * A chunk is an object with 2 attributes : `meta` and `data`. The former is an
+ * object containing anything (`percent` for example), see each worker for more
+ * details. The latter is the real data (String, Uint8Array, etc).
+ *
+ * @constructor
+ * @param {String} name the name of the stream (mainly used for debugging purposes)
+ */
+function GenericWorker(name) {
+    // the name of the worker
+    this.name = name || "default";
+    // an object containing metadata about the workers chain
+    this.streamInfo = {};
+    // an error which happened when the worker was paused
+    this.generatedError = null;
+    // an object containing metadata to be merged by this worker into the general metadata
+    this.extraStreamInfo = {};
+    // true if the stream is paused (and should not do anything), false otherwise
+    this.isPaused = true;
+    // true if the stream is finished (and should not do anything), false otherwise
+    this.isFinished = false;
+    // true if the stream is locked to prevent further structure updates (pipe), false otherwise
+    this.isLocked = false;
+    // the event listeners
+    this._listeners = {
+        "data":[],
+        "end":[],
+        "error":[]
+    };
+    // the previous worker, if any
+    this.previous = null;
+}
+
+GenericWorker.prototype = {
+    /**
+     * Push a chunk to the next workers.
+     * @param {Object} chunk the chunk to push
+     */
+    push : function (chunk) {
+        this.emit("data", chunk);
+    },
+    /**
+     * End the stream.
+     * @return {Boolean} true if this call ended the worker, false otherwise.
+     */
+    end : function () {
+        if (this.isFinished) {
+            return false;
+        }
+
+        this.flush();
+        try {
+            this.emit("end");
+            this.cleanUp();
+            this.isFinished = true;
+        } catch (e) {
+            this.emit("error", e);
+        }
+        return true;
+    },
+    /**
+     * End the stream with an error.
+     * @param {Error} e the error which caused the premature end.
+     * @return {Boolean} true if this call ended the worker with an error, false otherwise.
+     */
+    error : function (e) {
+        if (this.isFinished) {
+            return false;
+        }
+
+        if(this.isPaused) {
+            this.generatedError = e;
+        } else {
+            this.isFinished = true;
+
+            this.emit("error", e);
+
+            // in the workers chain exploded in the middle of the chain,
+            // the error event will go downward but we also need to notify
+            // workers upward that there has been an error.
+            if(this.previous) {
+                this.previous.error(e);
+            }
+
+            this.cleanUp();
+        }
+        return true;
+    },
+    /**
+     * Add a callback on an event.
+     * @param {String} name the name of the event (data, end, error)
+     * @param {Function} listener the function to call when the event is triggered
+     * @return {GenericWorker} the current object for chainability
+     */
+    on : function (name, listener) {
+        this._listeners[name].push(listener);
+        return this;
+    },
+    /**
+     * Clean any references when a worker is ending.
+     */
+    cleanUp : function () {
+        this.streamInfo = this.generatedError = this.extraStreamInfo = null;
+        this._listeners = [];
+    },
+    /**
+     * Trigger an event. This will call registered callback with the provided arg.
+     * @param {String} name the name of the event (data, end, error)
+     * @param {Object} arg the argument to call the callback with.
+     */
+    emit : function (name, arg) {
+        if (this._listeners[name]) {
+            for(var i = 0; i < this._listeners[name].length; i++) {
+                this._listeners[name][i].call(this, arg);
+            }
+        }
+    },
+    /**
+     * Chain a worker with an other.
+     * @param {Worker} next the worker receiving events from the current one.
+     * @return {worker} the next worker for chainability
+     */
+    pipe : function (next) {
+        return next.registerPrevious(this);
+    },
+    /**
+     * Same as `pipe` in the other direction.
+     * Using an API with `pipe(next)` is very easy.
+     * Implementing the API with the point of view of the next one registering
+     * a source is easier, see the ZipFileWorker.
+     * @param {Worker} previous the previous worker, sending events to this one
+     * @return {Worker} the current worker for chainability
+     */
+    registerPrevious : function (previous) {
+        if (this.isLocked) {
+            throw new Error("The stream '" + this + "' has already been used.");
+        }
+
+        // sharing the streamInfo...
+        this.streamInfo = previous.streamInfo;
+        // ... and adding our own bits
+        this.mergeStreamInfo();
+        this.previous =  previous;
+        var self = this;
+        previous.on("data", function (chunk) {
+            self.processChunk(chunk);
+        });
+        previous.on("end", function () {
+            self.end();
+        });
+        previous.on("error", function (e) {
+            self.error(e);
+        });
+        return this;
+    },
+    /**
+     * Pause the stream so it doesn't send events anymore.
+     * @return {Boolean} true if this call paused the worker, false otherwise.
+     */
+    pause : function () {
+        if(this.isPaused || this.isFinished) {
+            return false;
+        }
+        this.isPaused = true;
+
+        if(this.previous) {
+            this.previous.pause();
+        }
+        return true;
+    },
+    /**
+     * Resume a paused stream.
+     * @return {Boolean} true if this call resumed the worker, false otherwise.
+     */
+    resume : function () {
+        if(!this.isPaused || this.isFinished) {
+            return false;
+        }
+        this.isPaused = false;
+
+        // if true, the worker tried to resume but failed
+        var withError = false;
+        if(this.generatedError) {
+            this.error(this.generatedError);
+            withError = true;
+        }
+        if(this.previous) {
+            this.previous.resume();
+        }
+
+        return !withError;
+    },
+    /**
+     * Flush any remaining bytes as the stream is ending.
+     */
+    flush : function () {},
+    /**
+     * Process a chunk. This is usually the method overridden.
+     * @param {Object} chunk the chunk to process.
+     */
+    processChunk : function(chunk) {
+        this.push(chunk);
+    },
+    /**
+     * Add a key/value to be added in the workers chain streamInfo once activated.
+     * @param {String} key the key to use
+     * @param {Object} value the associated value
+     * @return {Worker} the current worker for chainability
+     */
+    withStreamInfo : function (key, value) {
+        this.extraStreamInfo[key] = value;
+        this.mergeStreamInfo();
+        return this;
+    },
+    /**
+     * Merge this worker's streamInfo into the chain's streamInfo.
+     */
+    mergeStreamInfo : function () {
+        for(var key in this.extraStreamInfo) {
+            if (!Object.prototype.hasOwnProperty.call(this.extraStreamInfo, key)) {
+                continue;
+            }
+            this.streamInfo[key] = this.extraStreamInfo[key];
+        }
+    },
+
+    /**
+     * Lock the stream to prevent further updates on the workers chain.
+     * After calling this method, all calls to pipe will fail.
+     */
+    lock: function () {
+        if (this.isLocked) {
+            throw new Error("The stream '" + this + "' has already been used.");
+        }
+        this.isLocked = true;
+        if (this.previous) {
+            this.previous.lock();
+        }
+    },
+
+    /**
+     *
+     * Pretty print the workers chain.
+     */
+    toString : function () {
+        var me = "Worker " + this.name;
+        if (this.previous) {
+            return this.previous + " -> " + me;
+        } else {
+            return me;
+        }
+    }
+};
+
+module.exports = GenericWorker;

libs/jszip/lib/stream/StreamHelper.js

@@ -0,0 +1,214 @@
+"use strict";
+
+var utils = require("../utils");
+var ConvertWorker = require("./ConvertWorker");
+var GenericWorker = require("./GenericWorker");
+var base64 = require("../base64");
+var support = require("../support");
+var external = require("../external");
+
+var NodejsStreamOutputAdapter = null;
+if (support.nodestream) {
+    try {
+        NodejsStreamOutputAdapter = require("../nodejs/NodejsStreamOutputAdapter");
+    } catch(e) {
+        // ignore
+    }
+}
+
+/**
+ * Apply the final transformation of the data. If the user wants a Blob for
+ * example, it's easier to work with an U8intArray and finally do the
+ * ArrayBuffer/Blob conversion.
+ * @param {String} type the name of the final type
+ * @param {String|Uint8Array|Buffer} content the content to transform
+ * @param {String} mimeType the mime type of the content, if applicable.
+ * @return {String|Uint8Array|ArrayBuffer|Buffer|Blob} the content in the right format.
+ */
+function transformZipOutput(type, content, mimeType) {
+    switch(type) {
+    case "blob" :
+        return utils.newBlob(utils.transformTo("arraybuffer", content), mimeType);
+    case "base64" :
+        return base64.encode(content);
+    default :
+        return utils.transformTo(type, content);
+    }
+}
+
+/**
+ * Concatenate an array of data of the given type.
+ * @param {String} type the type of the data in the given array.
+ * @param {Array} dataArray the array containing the data chunks to concatenate
+ * @return {String|Uint8Array|Buffer} the concatenated data
+ * @throws Error if the asked type is unsupported
+ */
+function concat (type, dataArray) {
+    var i, index = 0, res = null, totalLength = 0;
+    for(i = 0; i < dataArray.length; i++) {
+        totalLength += dataArray[i].length;
+    }
+    switch(type) {
+    case "string":
+        return dataArray.join("");
+    case "array":
+        return Array.prototype.concat.apply([], dataArray);
+    case "uint8array":
+        res = new Uint8Array(totalLength);
+        for(i = 0; i < dataArray.length; i++) {
+            res.set(dataArray[i], index);
+            index += dataArray[i].length;
+        }
+        return res;
+    case "nodebuffer":
+        return Buffer.concat(dataArray);
+    default:
+        throw new Error("concat : unsupported type '"  + type + "'");
+    }
+}
+
+/**
+ * Listen a StreamHelper, accumulate its content and concatenate it into a
+ * complete block.
+ * @param {StreamHelper} helper the helper to use.
+ * @param {Function} updateCallback a callback called on each update. Called
+ * with one arg :
+ * - the metadata linked to the update received.
+ * @return Promise the promise for the accumulation.
+ */
+function accumulate(helper, updateCallback) {
+    return new external.Promise(function (resolve, reject){
+        var dataArray = [];
+        var chunkType = helper._internalType,
+            resultType = helper._outputType,
+            mimeType = helper._mimeType;
+        helper
+            .on("data", function (data, meta) {
+                dataArray.push(data);
+                if(updateCallback) {
+                    updateCallback(meta);
+                }
+            })
+            .on("error", function(err) {
+                dataArray = [];
+                reject(err);
+            })
+            .on("end", function (){
+                try {
+                    var result = transformZipOutput(resultType, concat(chunkType, dataArray), mimeType);
+                    resolve(result);
+                } catch (e) {
+                    reject(e);
+                }
+                dataArray = [];
+            })
+            .resume();
+    });
+}
+
+/**
+ * An helper to easily use workers outside of JSZip.
+ * @constructor
+ * @param {Worker} worker the worker to wrap
+ * @param {String} outputType the type of data expected by the use
+ * @param {String} mimeType the mime type of the content, if applicable.
+ */
+function StreamHelper(worker, outputType, mimeType) {
+    var internalType = outputType;
+    switch(outputType) {
+    case "blob":
+    case "arraybuffer":
+        internalType = "uint8array";
+        break;
+    case "base64":
+        internalType = "string";
+        break;
+    }
+
+    try {
+        // the type used internally
+        this._internalType = internalType;
+        // the type used to output results
+        this._outputType = outputType;
+        // the mime type
+        this._mimeType = mimeType;
+        utils.checkSupport(internalType);
+        this._worker = worker.pipe(new ConvertWorker(internalType));
+        // the last workers can be rewired without issues but we need to
+        // prevent any updates on previous workers.
+        worker.lock();
+    } catch(e) {
+        this._worker = new GenericWorker("error");
+        this._worker.error(e);
+    }
+}
+
+StreamHelper.prototype = {
+    /**
+     * Listen a StreamHelper, accumulate its content and concatenate it into a
+     * complete block.
+     * @param {Function} updateCb the update callback.
+     * @return Promise the promise for the accumulation.
+     */
+    accumulate : function (updateCb) {
+        return accumulate(this, updateCb);
+    },
+    /**
+     * Add a listener on an event triggered on a stream.
+     * @param {String} evt the name of the event
+     * @param {Function} fn the listener
+     * @return {StreamHelper} the current helper.
+     */
+    on : function (evt, fn) {
+        var self = this;
+
+        if(evt === "data") {
+            this._worker.on(evt, function (chunk) {
+                fn.call(self, chunk.data, chunk.meta);
+            });
+        } else {
+            this._worker.on(evt, function () {
+                utils.delay(fn, arguments, self);
+            });
+        }
+        return this;
+    },
+    /**
+     * Resume the flow of chunks.
+     * @return {StreamHelper} the current helper.
+     */
+    resume : function () {
+        utils.delay(this._worker.resume, [], this._worker);
+        return this;
+    },
+    /**
+     * Pause the flow of chunks.
+     * @return {StreamHelper} the current helper.
+     */
+    pause : function () {
+        this._worker.pause();
+        return this;
+    },
+    /**
+     * Return a nodejs stream for this helper.
+     * @param {Function} updateCb the update callback.
+     * @return {NodejsStreamOutputAdapter} the nodejs stream.
+     */
+    toNodejsStream : function (updateCb) {
+        utils.checkSupport("nodestream");
+        if (this._outputType !== "nodebuffer") {
+            // an object stream containing blob/arraybuffer/uint8array/string
+            // is strange and I don't know if it would be useful.
+            // I you find this comment and have a good usecase, please open a
+            // bug report !
+            throw new Error(this._outputType + " is not supported by this method");
+        }
+
+        return new NodejsStreamOutputAdapter(this, {
+            objectMode : this._outputType !== "nodebuffer"
+        }, updateCb);
+    }
+};
+
+
+module.exports = StreamHelper;

libs/jszip/lib/support.js

@@ -0,0 +1,38 @@
+"use strict";
+
+exports.base64 = true;
+exports.array = true;
+exports.string = true;
+exports.arraybuffer = typeof ArrayBuffer !== "undefined" && typeof Uint8Array !== "undefined";
+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 = self.BlobBuilder || self.WebKitBlobBuilder || self.MozBlobBuilder || self.MSBlobBuilder;
+            var builder = new Builder();
+            builder.append(buffer);
+            exports.blob = builder.getBlob("application/zip").size === 0;
+        }
+        catch (e) {
+            exports.blob = false;
+        }
+    }
+}
+
+try {
+    exports.nodestream = !!require("readable-stream").Readable;
+} catch(e) {
+    exports.nodestream = false;
+}

libs/jszip/lib/utf8.js

@@ -0,0 +1,275 @@
+"use strict";
+
+var utils = require("./utils");
+var support = require("./support");
+var nodejsUtils = require("./nodejsUtils");
+var GenericWorker = require("./stream/GenericWorker");
+
+/**
+ * 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 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 nodejsUtils.newBufferFrom(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);
+};
+
+/**
+ * A worker to decode utf8 encoded binary chunks into string chunks.
+ * @constructor
+ */
+function Utf8DecodeWorker() {
+    GenericWorker.call(this, "utf-8 decode");
+    // the last bytes if a chunk didn't end with a complete codepoint.
+    this.leftOver = null;
+}
+utils.inherits(Utf8DecodeWorker, GenericWorker);
+
+/**
+ * @see GenericWorker.processChunk
+ */
+Utf8DecodeWorker.prototype.processChunk = function (chunk) {
+
+    var data = utils.transformTo(support.uint8array ? "uint8array" : "array", chunk.data);
+
+    // 1st step, re-use what's left of the previous chunk
+    if (this.leftOver && this.leftOver.length) {
+        if(support.uint8array) {
+            var previousData = data;
+            data = new Uint8Array(previousData.length + this.leftOver.length);
+            data.set(this.leftOver, 0);
+            data.set(previousData, this.leftOver.length);
+        } else {
+            data = this.leftOver.concat(data);
+        }
+        this.leftOver = null;
+    }
+
+    var nextBoundary = utf8border(data);
+    var usableData = data;
+    if (nextBoundary !== data.length) {
+        if (support.uint8array) {
+            usableData = data.subarray(0, nextBoundary);
+            this.leftOver = data.subarray(nextBoundary, data.length);
+        } else {
+            usableData = data.slice(0, nextBoundary);
+            this.leftOver = data.slice(nextBoundary, data.length);
+        }
+    }
+
+    this.push({
+        data : exports.utf8decode(usableData),
+        meta : chunk.meta
+    });
+};
+
+/**
+ * @see GenericWorker.flush
+ */
+Utf8DecodeWorker.prototype.flush = function () {
+    if(this.leftOver && this.leftOver.length) {
+        this.push({
+            data : exports.utf8decode(this.leftOver),
+            meta : {}
+        });
+        this.leftOver = null;
+    }
+};
+exports.Utf8DecodeWorker = Utf8DecodeWorker;
+
+/**
+ * A worker to endcode string chunks into utf8 encoded binary chunks.
+ * @constructor
+ */
+function Utf8EncodeWorker() {
+    GenericWorker.call(this, "utf-8 encode");
+}
+utils.inherits(Utf8EncodeWorker, GenericWorker);
+
+/**
+ * @see GenericWorker.processChunk
+ */
+Utf8EncodeWorker.prototype.processChunk = function (chunk) {
+    this.push({
+        data : exports.utf8encode(chunk.data),
+        meta : chunk.meta
+    });
+};
+exports.Utf8EncodeWorker = Utf8EncodeWorker;

libs/jszip/lib/utils.js

@@ -0,0 +1,501 @@
+"use strict";
+
+var support = require("./support");
+var base64 = require("./base64");
+var nodejsUtils = require("./nodejsUtils");
+var external = require("./external");
+require("setimmediate");
+
+
+/**
+ * Convert a string that pass as a "binary string": it should represent a byte
+ * array but may have > 255 char codes. Be sure to take only the first byte
+ * and returns the byte array.
+ * @param {String} str the string to transform.
+ * @return {Array|Uint8Array} the string in a binary format.
+ */
+function string2binary(str) {
+    var result = null;
+    if (support.uint8array) {
+        result = new Uint8Array(str.length);
+    } else {
+        result = new Array(str.length);
+    }
+    return stringToArrayLike(str, result);
+}
+
+/**
+ * Create a new blob with the given content and the given type.
+ * @param {String|ArrayBuffer} part the content to put in the blob. DO NOT use
+ * an Uint8Array because the stock browser of android 4 won't accept it (it
+ * will be silently converted to a string, "[object Uint8Array]").
+ *
+ * Use only ONE part to build the blob to avoid a memory leak in IE11 / Edge:
+ * when a large amount of Array is used to create the Blob, the amount of
+ * memory consumed is nearly 100 times the original data amount.
+ *
+ * @param {String} type the mime type of the blob.
+ * @return {Blob} the created blob.
+ */
+exports.newBlob = function(part, type) {
+    exports.checkSupport("blob");
+
+    try {
+        // Blob constructor
+        return new Blob([part], {
+            type: type
+        });
+    }
+    catch (e) {
+
+        try {
+            // deprecated, browser only, old way
+            var Builder = self.BlobBuilder || self.WebKitBlobBuilder || self.MozBlobBuilder || self.MSBlobBuilder;
+            var builder = new Builder();
+            builder.append(part);
+            return builder.getBlob(type);
+        }
+        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;
+}
+
+/**
+ * An helper for the function arrayLikeToString.
+ * This contains static information and functions that
+ * can be optimized by the browser JIT compiler.
+ */
+var arrayToStringHelper = {
+    /**
+     * Transform an array of int into a string, chunk by chunk.
+     * See the performances notes on arrayLikeToString.
+     * @param {Array|ArrayBuffer|Uint8Array|Buffer} array the array to transform.
+     * @param {String} type the type of the array.
+     * @param {Integer} chunk the chunk size.
+     * @return {String} the resulting string.
+     * @throws Error if the chunk is too big for the stack.
+     */
+    stringifyByChunk: function(array, type, chunk) {
+        var result = [], k = 0, len = array.length;
+        // shortcut
+        if (len <= chunk) {
+            return String.fromCharCode.apply(null, array);
+        }
+        while (k < len) {
+            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;
+        }
+        return result.join("");
+    },
+    /**
+     * Call String.fromCharCode on every item in the array.
+     * This is the naive implementation, which generate A LOT of intermediate string.
+     * This should be used when everything else fail.
+     * @param {Array|ArrayBuffer|Uint8Array|Buffer} array the array to transform.
+     * @return {String} the result.
+     */
+    stringifyByChar: function(array){
+        var resultStr = "";
+        for(var i = 0; i < array.length; i++) {
+            resultStr += String.fromCharCode(array[i]);
+        }
+        return resultStr;
+    },
+    applyCanBeUsed : {
+        /**
+         * true if the browser accepts to use String.fromCharCode on Uint8Array
+         */
+        uint8array : (function () {
+            try {
+                return support.uint8array && String.fromCharCode.apply(null, new Uint8Array(1)).length === 1;
+            } catch (e) {
+                return false;
+            }
+        })(),
+        /**
+         * true if the browser accepts to use String.fromCharCode on nodejs Buffer.
+         */
+        nodebuffer : (function () {
+            try {
+                return support.nodebuffer && String.fromCharCode.apply(null, nodejsUtils.allocBuffer(1)).length === 1;
+            } catch (e) {
+                return false;
+            }
+        })()
+    }
+};
+
+/**
+ * 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
+    // TODO : we now have workers that split the work. Do we still need that ?
+    var chunk = 65536,
+        type = exports.getTypeOf(array),
+        canUseApply = true;
+    if (type === "uint8array") {
+        canUseApply = arrayToStringHelper.applyCanBeUsed.uint8array;
+    } else if (type === "nodebuffer") {
+        canUseApply = arrayToStringHelper.applyCanBeUsed.nodebuffer;
+    }
+
+    if (canUseApply) {
+        while (chunk > 1) {
+            try {
+                return arrayToStringHelper.stringifyByChunk(array, type, chunk);
+            } catch (e) {
+                chunk = Math.floor(chunk / 2);
+            }
+        }
+    }
+
+    // no apply or chunk error : slow and painful algorithm
+    // default browser on android 4.*
+    return arrayToStringHelper.stringifyByChar(array);
+}
+
+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, nodejsUtils.allocBuffer(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 nodejsUtils.newBufferFrom(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 nodejsUtils.newBufferFrom(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 nodejsUtils.newBufferFrom(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;
+};
+
+/**
+ * Resolve all relative path components, "." and "..", in a path. If these relative components
+ * traverse above the root then the resulting path will only contain the final path component.
+ *
+ * All empty components, e.g. "//", are removed.
+ * @param {string} path A path with / or \ separators
+ * @returns {string} The path with all relative path components resolved.
+ */
+exports.resolve = function(path) {
+    var parts = path.split("/");
+    var result = [];
+    for (var index = 0; index < parts.length; index++) {
+        var part = parts[index];
+        // Allow the first and last component to be empty for trailing slashes.
+        if (part === "." || (part === "" && index !== 0 && index !== parts.length - 1)) {
+            continue;
+        } else if (part === "..") {
+            result.pop();
+        } else {
+            result.push(part);
+        }
+    }
+    return result.join("/");
+};
+
+/**
+ * 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 && nodejsUtils.isBuffer(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 platform");
+    }
+};
+
+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;
+};
+
+/**
+ * Defer the call of a function.
+ * @param {Function} callback the function to call asynchronously.
+ * @param {Array} args the arguments to give to the callback.
+ */
+exports.delay = function(callback, args, self) {
+    setImmediate(function () {
+        callback.apply(self || null, args || []);
+    });
+};
+
+/**
+ * Extends a prototype with an other, without calling a constructor with
+ * side effects. Inspired by nodejs' `utils.inherits`
+ * @param {Function} ctor the constructor to augment
+ * @param {Function} superCtor the parent constructor to use
+ */
+exports.inherits = function (ctor, superCtor) {
+    var Obj = function() {};
+    Obj.prototype = superCtor.prototype;
+    ctor.prototype = new Obj();
+};
+
+/**
+ * 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 (Object.prototype.hasOwnProperty.call(arguments[i], attr) && typeof result[attr] === "undefined") {
+                result[attr] = arguments[i][attr];
+            }
+        }
+    }
+    return result;
+};
+
+/**
+ * Transform arbitrary content into a Promise.
+ * @param {String} name a name for the content being processed.
+ * @param {Object} inputData the content to process.
+ * @param {Boolean} isBinary true if the content is not an unicode string
+ * @param {Boolean} isOptimizedBinaryString true if the string content only has one byte per character.
+ * @param {Boolean} isBase64 true if the string content is encoded with base64.
+ * @return {Promise} a promise in a format usable by JSZip.
+ */
+exports.prepareContent = function(name, inputData, isBinary, isOptimizedBinaryString, isBase64) {
+
+    // if inputData is already a promise, this flatten it.
+    var promise = external.Promise.resolve(inputData).then(function(data) {
+
+
+        var isBlob = support.blob && (data instanceof Blob || ["[object File]", "[object Blob]"].indexOf(Object.prototype.toString.call(data)) !== -1);
+
+        if (isBlob && typeof FileReader !== "undefined") {
+            return new external.Promise(function (resolve, reject) {
+                var reader = new FileReader();
+
+                reader.onload = function(e) {
+                    resolve(e.target.result);
+                };
+                reader.onerror = function(e) {
+                    reject(e.target.error);
+                };
+                reader.readAsArrayBuffer(data);
+            });
+        } else {
+            return data;
+        }
+    });
+
+    return promise.then(function(data) {
+        var dataType = exports.getTypeOf(data);
+
+        if (!dataType) {
+            return external.Promise.reject(
+                new Error("Can't read the data of '" + name + "'. Is it " +
+                          "in a supported JavaScript type (String, Blob, ArrayBuffer, etc) ?")
+            );
+        }
+        // special case : it's way easier to work with Uint8Array than with ArrayBuffer
+        if (dataType === "arraybuffer") {
+            data = exports.transformTo("uint8array", data);
+        } else if (dataType === "string") {
+            if (isBase64) {
+                data = base64.decode(data);
+            }
+            else if (isBinary) {
+                // optimizedBinaryString === true means that the file has already been filtered with a 0xFF mask
+                if (isOptimizedBinaryString !== true) {
+                    // this is a string, not in a base64 format.
+                    // Be sure that this is a correct "binary string"
+                    data = string2binary(data);
+                }
+            }
+        }
+        return data;
+    });
+};

libs/jszip/lib/zipEntries.js

@@ -0,0 +1,261 @@
+"use strict";
+var readerFor = require("./reader/readerFor");
+var utils = require("./utils");
+var sig = require("./signature");
+var ZipEntry = require("./zipEntry");
+var support = require("./support");
+//  class ZipEntries {{{
+/**
+ * All the entries in the zip file.
+ * @constructor
+ * @param {Object} loadOptions Options for loading the stream.
+ */
+function ZipEntries(loadOptions) {
+    this.files = [];
+    this.loadOptions = loadOptions;
+}
+ZipEntries.prototype = {
+    /**
+     * Check that the reader is on the specified signature.
+     * @param {string} expectedSignature the expected signature.
+     * @throws {Error} if it is an other signature.
+     */
+    checkSignature: function(expectedSignature) {
+        if (!this.reader.readAndCheckSignature(expectedSignature)) {
+            this.reader.index -= 4;
+            var signature = this.reader.readString(4);
+            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.reader.skip(4);
+        // 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.readData(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.readAndCheckSignature(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 https://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) {
+        this.reader = readerFor(data);
+    },
+    /**
+     * 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;

libs/jszip/lib/zipEntry.js

@@ -0,0 +1,293 @@
+"use strict";
+var readerFor = require("./reader/readerFor");
+var utils = require("./utils");
+var CompressedObject = require("./compressedObject");
+var crc32fn = require("./crc32");
+var utf8 = require("./utf8");
+var compressions = require("./compressions");
+var support = require("./support");
+
+var MADE_BY_DOS = 0x00;
+var MADE_BY_UNIX = 0x03;
+
+/**
+ * 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.
+ */
+var findCompression = function(compressionMethod) {
+    for (var method in compressions) {
+        if (!Object.prototype.hasOwnProperty.call(compressions, method)) {
+            continue;
+        }
+        if (compressions[method].magic === compressionMethod) {
+            return compressions[method];
+        }
+    }
+    return null;
+};
+
+// 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;
+    },
+    /**
+     * 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
+        // the fileName is stored as binary data, the handleUTF8 method will take care of the encoding.
+        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 information from the central directory " + "(compressedSize === -1 || uncompressedSize === -1)");
+        }
+
+        compression = 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.compressedSize, this.uncompressedSize, this.crc32, compression, reader.readData(this.compressedSize));
+    },
+
+    /**
+     * 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);
+        reader.skip(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);
+        var 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");
+        }
+
+        // will be read in the local part, see the comments there
+        reader.skip(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() {
+        if (!this.extraFields[0x0001]) {
+            return;
+        }
+
+        // should be something, preparing the extra reader
+        var extraReader = readerFor(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 end = reader.index + this.extraFieldsLength,
+            extraFieldId,
+            extraFieldLength,
+            extraFieldValue;
+
+        if (!this.extraFields) {
+            this.extraFields = {};
+        }
+
+        while (reader.index + 4 < end) {
+            extraFieldId = reader.readInt(2);
+            extraFieldLength = reader.readInt(2);
+            extraFieldValue = reader.readData(extraFieldLength);
+
+            this.extraFields[extraFieldId] = {
+                id: extraFieldId,
+                length: extraFieldLength,
+                value: extraFieldValue
+            };
+        }
+
+        reader.setIndex(end);
+    },
+    /**
+     * Apply an UTF8 transformation if needed.
+     */
+    handleUTF8: function() {
+        var decodeParamType = support.uint8array ? "uint8array" : "array";
+        if (this.useUTF8()) {
+            this.fileNameStr = utf8.utf8decode(this.fileName);
+            this.fileCommentStr = utf8.utf8decode(this.fileComment);
+        } else {
+            var upath = this.findExtraFieldUnicodePath();
+            if (upath !== null) {
+                this.fileNameStr = upath;
+            } else {
+                // ASCII text or unsupported code page
+                var fileNameByteArray =  utils.transformTo(decodeParamType, this.fileName);
+                this.fileNameStr = this.loadOptions.decodeFileName(fileNameByteArray);
+            }
+
+            var ucomment = this.findExtraFieldUnicodeComment();
+            if (ucomment !== null) {
+                this.fileCommentStr = ucomment;
+            } else {
+                // ASCII text or unsupported code page
+                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 = readerFor(upathField.value);
+
+            // wrong version
+            if (extraReader.readInt(1) !== 1) {
+                return null;
+            }
+
+            // the crc of the filename changed, this field is out of date.
+            if (crc32fn(this.fileName) !== extraReader.readInt(4)) {
+                return null;
+            }
+
+            return utf8.utf8decode(extraReader.readData(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 = readerFor(ucommentField.value);
+
+            // wrong version
+            if (extraReader.readInt(1) !== 1) {
+                return null;
+            }
+
+            // the crc of the comment changed, this field is out of date.
+            if (crc32fn(this.fileComment) !== extraReader.readInt(4)) {
+                return null;
+            }
+
+            return utf8.utf8decode(extraReader.readData(ucommentField.length - 5));
+        }
+        return null;
+    }
+};
+module.exports = ZipEntry;

libs/jszip/lib/zipObject.js

@@ -0,0 +1,133 @@
+"use strict";
+
+var StreamHelper = require("./stream/StreamHelper");
+var DataWorker = require("./stream/DataWorker");
+var utf8 = require("./utf8");
+var CompressedObject = require("./compressedObject");
+var GenericWorker = require("./stream/GenericWorker");
+
+/**
+ * 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._dataBinary = options.binary;
+    // keep only the compression
+    this.options = {
+        compression : options.compression,
+        compressionOptions : options.compressionOptions
+    };
+};
+
+ZipObject.prototype = {
+    /**
+     * Create an internal stream for the content of this object.
+     * @param {String} type the type of each chunk.
+     * @return StreamHelper the stream.
+     */
+    internalStream: function (type) {
+        var result = null, outputType = "string";
+        try {
+            if (!type) {
+                throw new Error("No output type specified.");
+            }
+            outputType = type.toLowerCase();
+            var askUnicodeString = outputType === "string" || outputType === "text";
+            if (outputType === "binarystring" || outputType === "text") {
+                outputType = "string";
+            }
+            result = this._decompressWorker();
+
+            var isUnicodeString = !this._dataBinary;
+
+            if (isUnicodeString && !askUnicodeString) {
+                result = result.pipe(new utf8.Utf8EncodeWorker());
+            }
+            if (!isUnicodeString && askUnicodeString) {
+                result = result.pipe(new utf8.Utf8DecodeWorker());
+            }
+        } catch (e) {
+            result = new GenericWorker("error");
+            result.error(e);
+        }
+
+        return new StreamHelper(result, outputType, "");
+    },
+
+    /**
+     * Prepare the content in the asked type.
+     * @param {String} type the type of the result.
+     * @param {Function} onUpdate a function to call on each internal update.
+     * @return Promise the promise of the result.
+     */
+    async: function (type, onUpdate) {
+        return this.internalStream(type).accumulate(onUpdate);
+    },
+
+    /**
+     * Prepare the content as a nodejs stream.
+     * @param {String} type the type of each chunk.
+     * @param {Function} onUpdate a function to call on each internal update.
+     * @return Stream the stream.
+     */
+    nodeStream: function (type, onUpdate) {
+        return this.internalStream(type || "nodebuffer").toNodejsStream(onUpdate);
+    },
+
+    /**
+     * Return a worker for the compressed content.
+     * @private
+     * @param {Object} compression the compression object to use.
+     * @param {Object} compressionOptions the options to use when compressing.
+     * @return Worker the worker.
+     */
+    _compressWorker: function (compression, compressionOptions) {
+        if (
+            this._data instanceof CompressedObject &&
+            this._data.compression.magic === compression.magic
+        ) {
+            return this._data.getCompressedWorker();
+        } else {
+            var result = this._decompressWorker();
+            if(!this._dataBinary) {
+                result = result.pipe(new utf8.Utf8EncodeWorker());
+            }
+            return CompressedObject.createWorkerFrom(result, compression, compressionOptions);
+        }
+    },
+    /**
+     * Return a worker for the decompressed content.
+     * @private
+     * @return Worker the worker.
+     */
+    _decompressWorker : function () {
+        if (this._data instanceof CompressedObject) {
+            return this._data.getContentWorker();
+        } else if (this._data instanceof GenericWorker) {
+            return this._data;
+        } else {
+            return new DataWorker(this._data);
+        }
+    }
+};
+
+var removedMethods = ["asText", "asBinary", "asNodeBuffer", "asUint8Array", "asArrayBuffer"];
+var removedFn = function () {
+    throw new Error("This method has been removed in JSZip 3.0, please check the upgrade guide.");
+};
+
+for(var i = 0; i < removedMethods.length; i++) {
+    ZipObject.prototype[removedMethods[i]] = removedFn;
+}
+module.exports = ZipObject;

libs/jszip/package.json

@@ -0,0 +1,67 @@
+{
+  "name": "jszip",
+  "version": "3.10.1",
+  "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 && tsc",
+    "test-node": "qunit --require ./test/helpers/test-utils.js --require ./test/helpers/node-test-utils.js test/asserts/",
+    "test-browser": "grunt build && node test/run.js --test",
+    "benchmark": "npm run benchmark-node && npm run benchmark-browser",
+    "benchmark-node": "node test/benchmark/node.js",
+    "benchmark-browser": "node test/run.js --benchmark",
+    "lint": "eslint ."
+  },
+  "contributors": [
+    {
+      "name": "Franz Buchinger"
+    },
+    {
+      "name": "António Afonso"
+    },
+    {
+      "name": "David Duponchel"
+    },
+    {
+      "name": "yiminghe"
+    }
+  ],
+  "main": "./lib/index",
+  "browser": {
+    "./lib/index": "./dist/jszip.min.js",
+    "readable-stream": "./lib/readable-stream-browser.js"
+  },
+  "types": "./index.d.ts",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Stuk/jszip.git"
+  },
+  "keywords": [
+    "zip",
+    "deflate",
+    "inflate"
+  ],
+  "devDependencies": {
+    "benchmark": "^2.1.4",
+    "browserify": "~13.0.0",
+    "eslint": "^8.18.0",
+    "grunt": "~0.4.1",
+    "grunt-browserify": "~5.0.0",
+    "grunt-cli": "~1.1.0",
+    "grunt-contrib-uglify": "~4.0.1",
+    "http-server": "^13.0.2",
+    "jszip-utils": "~0.0.2",
+    "package-json-versionify": "1.0.2",
+    "playwright": "^1.15.2",
+    "qunit": "~2.9.2",
+    "tmp": "0.0.28",
+    "typescript": "^4.6.3"
+  },
+  "dependencies": {
+    "lie": "~3.3.0",
+    "pako": "~1.0.2",
+    "readable-stream": "~2.3.6",
+    "setimmediate": "^1.0.5"
+  },
+  "license": "(MIT OR GPL-3.0-or-later)"
+}

libs/jszip/sponsors.md

@@ -0,0 +1,21 @@
+---
+title: "Sponsors"
+layout: default
+section: main
+---
+
+[JSZip](https://github.com/Stuk/jszip) was created in 2009 by [Stuart](https://github.com/Stuk). Since then it has received well over [600 million downloads](https://npm-stat.com/charts.html?package=jszip&from=2009-06-20&to=2022-06-20), is depended on by over 3000 packages on npm, and powers zipping and unzipping on sites large and small.
+
+This project only exists because of all the work dedicated to it by me and the other contributors.
+
+If you or your company has benefited from JSZip then please consider [sponsoring on Github](https://github.com/sponsors/Stuk).
+
+## 💎 Diamond
+
+## 🥇 Gold
+
+## 🥈 Silver
+
+## 🥉 Bronze
+
+## Supporters

libs/jszip/tsconfig.json

@@ -0,0 +1,101 @@
+{
+  "compilerOptions": {
+    /* Visit https://aka.ms/tsconfig.json to read more about this file */
+
+    /* Projects */
+    // "incremental": true,                              /* Enable incremental compilation */
+    // "composite": true,                                /* Enable constraints that allow a TypeScript project to be used with project references. */
+    // "tsBuildInfoFile": "./",                          /* Specify the folder for .tsbuildinfo incremental compilation files. */
+    // "disableSourceOfProjectReferenceRedirect": true,  /* Disable preferring source files instead of declaration files when referencing composite projects */
+    // "disableSolutionSearching": true,                 /* Opt a project out of multi-project reference checking when editing. */
+    // "disableReferencedProjectLoad": true,             /* Reduce the number of projects loaded automatically by TypeScript. */
+
+    /* Language and Environment */
+    "target": "es2016",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
+    // "lib": [],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
+    // "jsx": "preserve",                                /* Specify what JSX code is generated. */
+    // "experimentalDecorators": true,                   /* Enable experimental support for TC39 stage 2 draft decorators. */
+    // "emitDecoratorMetadata": true,                    /* Emit design-type metadata for decorated declarations in source files. */
+    // "jsxFactory": "",                                 /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h' */
+    // "jsxFragmentFactory": "",                         /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
+    // "jsxImportSource": "",                            /* Specify module specifier used to import the JSX factory functions when using `jsx: react-jsx*`.` */
+    // "reactNamespace": "",                             /* Specify the object invoked for `createElement`. This only applies when targeting `react` JSX emit. */
+    // "noLib": true,                                    /* Disable including any library files, including the default lib.d.ts. */
+    // "useDefineForClassFields": true,                  /* Emit ECMAScript-standard-compliant class fields. */
+
+    /* Modules */
+    "module": "commonjs",                                /* Specify what module code is generated. */
+    // "rootDir": "./",                                  /* Specify the root folder within your source files. */
+    // "moduleResolution": "node",                       /* Specify how TypeScript looks up a file from a given module specifier. */
+    // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
+    // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
+    // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
+    // "typeRoots": [],                                  /* Specify multiple folders that act like `./node_modules/@types`. */
+    // "types": [],                                      /* Specify type package names to be included without being referenced in a source file. */
+    // "allowUmdGlobalAccess": true,                     /* Allow accessing UMD globals from modules. */
+    // "resolveJsonModule": true,                        /* Enable importing .json files */
+    // "noResolve": true,                                /* Disallow `import`s, `require`s or `<reference>`s from expanding the number of files TypeScript should add to a project. */
+
+    /* JavaScript Support */
+    // "allowJs": true,                                  /* Allow JavaScript files to be a part of your program. Use the `checkJS` option to get errors from these files. */
+    // "checkJs": true,                                  /* Enable error reporting in type-checked JavaScript files. */
+    // "maxNodeModuleJsDepth": 1,                        /* Specify the maximum folder depth used for checking JavaScript files from `node_modules`. Only applicable with `allowJs`. */
+
+    /* Emit */
+    // "declaration": true,                              /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
+    // "declarationMap": true,                           /* Create sourcemaps for d.ts files. */
+    // "emitDeclarationOnly": true,                      /* Only output d.ts files and not JavaScript files. */
+    // "sourceMap": true,                                /* Create source map files for emitted JavaScript files. */
+    // "outFile": "./",                                  /* Specify a file that bundles all outputs into one JavaScript file. If `declaration` is true, also designates a file that bundles all .d.ts output. */
+    // "outDir": "./",                                   /* Specify an output folder for all emitted files. */
+    // "removeComments": true,                           /* Disable emitting comments. */
+    "noEmit": true,                                   /* Disable emitting files from a compilation. */
+    // "importHelpers": true,                            /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
+    // "importsNotUsedAsValues": "remove",               /* Specify emit/checking behavior for imports that are only used for types */
+    // "downlevelIteration": true,                       /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
+    // "sourceRoot": "",                                 /* Specify the root path for debuggers to find the reference source code. */
+    // "mapRoot": "",                                    /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,                          /* Include sourcemap files inside the emitted JavaScript. */
+    // "inlineSources": true,                            /* Include source code in the sourcemaps inside the emitted JavaScript. */
+    // "emitBOM": true,                                  /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
+    // "newLine": "crlf",                                /* Set the newline character for emitting files. */
+    // "stripInternal": true,                            /* Disable emitting declarations that have `@internal` in their JSDoc comments. */
+    // "noEmitHelpers": true,                            /* Disable generating custom helper functions like `__extends` in compiled output. */
+    // "noEmitOnError": true,                            /* Disable emitting files if any type checking errors are reported. */
+    // "preserveConstEnums": true,                       /* Disable erasing `const enum` declarations in generated code. */
+    // "declarationDir": "./",                           /* Specify the output directory for generated declaration files. */
+    // "preserveValueImports": true,                     /* Preserve unused imported values in the JavaScript output that would otherwise be removed. */
+
+    /* Interop Constraints */
+    // "isolatedModules": true,                          /* Ensure that each file can be safely transpiled without relying on other imports. */
+    // "allowSyntheticDefaultImports": true,             /* Allow 'import x from y' when a module doesn't have a default export. */
+    "esModuleInterop": true,                             /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables `allowSyntheticDefaultImports` for type compatibility. */
+    // "preserveSymlinks": true,                         /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
+    "forceConsistentCasingInFileNames": true,            /* Ensure that casing is correct in imports. */
+
+    /* Type Checking */
+    "strict": true,                                      /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                            /* Enable error reporting for expressions and declarations with an implied `any` type.. */
+    // "strictNullChecks": true,                         /* When type checking, take into account `null` and `undefined`. */
+    // "strictFunctionTypes": true,                      /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
+    // "strictBindCallApply": true,                      /* Check that the arguments for `bind`, `call`, and `apply` methods match the original function. */
+    // "strictPropertyInitialization": true,             /* Check for class properties that are declared but not set in the constructor. */
+    // "noImplicitThis": true,                           /* Enable error reporting when `this` is given the type `any`. */
+    // "useUnknownInCatchVariables": true,               /* Type catch clause variables as 'unknown' instead of 'any'. */
+    // "alwaysStrict": true,                             /* Ensure 'use strict' is always emitted. */
+    // "noUnusedLocals": true,                           /* Enable error reporting when a local variables aren't read. */
+    // "noUnusedParameters": true,                       /* Raise an error when a function parameter isn't read */
+    // "exactOptionalPropertyTypes": true,               /* Interpret optional property types as written, rather than adding 'undefined'. */
+    // "noImplicitReturns": true,                        /* Enable error reporting for codepaths that do not explicitly return in a function. */
+    // "noFallthroughCasesInSwitch": true,               /* Enable error reporting for fallthrough cases in switch statements. */
+    // "noUncheckedIndexedAccess": true,                 /* Include 'undefined' in index signature results */
+    // "noImplicitOverride": true,                       /* Ensure overriding members in derived classes are marked with an override modifier. */
+    // "noPropertyAccessFromIndexSignature": true,       /* Enforces using indexed accessors for keys declared using an indexed type */
+    // "allowUnusedLabels": true,                        /* Disable error reporting for unused labels. */
+    // "allowUnreachableCode": true,                     /* Disable error reporting for unreachable code. */
+
+    /* Completeness */
+    // "skipDefaultLibCheck": true,                      /* Skip type checking .d.ts files that are included with TypeScript. */
+    // "skipLibCheck": true                                 /* Skip type checking all .d.ts files. */
+  }
+}

libs/jszip/vendor/FileSaver.js

@@ -0,0 +1,247 @@
+/*! 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/main/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;

libs/npyjs/CHANGELOG.md

@@ -0,0 +1,13 @@
+# Changelog
+
+## 0.7.0
+
+-   add support for f16 dtypes, with f32 conversion as needed (#49, thanks @eek!)
+
+## 0.6.0
+
+-   Add type declarations
+
+## 0.5.0
+
+-   #36: Support passing an `ArrayBuffer` directly (thanks @AdityaSarwade!)

libs/npyjs/LICENSE

@@ -0,0 +1,174 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
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+
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+5. Submission of Contributions. Unless You explicitly state otherwise,
+any Contribution intentionally submitted for inclusion in the Work
+by You to the Licensor shall be under the terms and conditions of
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+Notwithstanding the above, nothing herein shall supersede or modify
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+7. Disclaimer of Warranty. Unless required by applicable law or
+agreed to in writing, Licensor provides the Work (and each
+Contributor provides its Contributions) on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+implied, including, without limitation, any warranties or conditions
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+PARTICULAR PURPOSE. You are solely responsible for determining the
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+8. Limitation of Liability. In no event and under no legal theory,
+whether in tort (including negligence), contract, or otherwise,
+unless required by applicable law (such as deliberate and grossly
+negligent acts) or agreed to in writing, shall any Contributor be
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+of your accepting any such warranty or additional liability.

libs/npyjs/README.md

@@ -0,0 +1,99 @@
+<h1 align=center>npy.js</h1>
+<h6 align=center>Read .npy files directly in JS</h6>
+
+<p align=center>
+    <a href="https://www.npmjs.com/package/npyjs"><img src="https://img.shields.io/npm/v/npyjs.svg?style=for-the-badge" /></a>
+    <a href="https://github.com/aplbrain/npyjs"><img src="https://img.shields.io/github/issues/aplbrain/npyjs.svg?style=for-the-badge" /></a>
+    <a href="https://github.com/aplbrain/npyjs"><img src="https://img.shields.io/github/license/aplbrain/npyjs.svg?style=for-the-badge" /></a>
+    <img alt="GitHub Workflow Status" src="https://img.shields.io/github/actions/workflow/status/aplbrain/npyjs/test-node.yml?label=Tests&style=for-the-badge">
+</p>
+
+Read .npy files from [numpy](https://numpy.org/doc/1.18/reference/generated/numpy.save.html) in Node/JS.
+
+## Installation
+
+Include npy.js in your project directly, or:
+
+```shell
+yarn add npyjs
+# npm i npyjs
+```
+
+## Import
+
+```javascript
+import npyjs from "npyjs";
+```
+
+## Usage
+
+-   Create a new npyjs object:
+
+```javascript
+let n = new npyjs();
+// Or with options:
+let n = new npyjs({ convertFloat16: false }); // Disable float16 to float32 conversion
+```
+
+-   This object can now be used load .npy files. Arrays can be returned via a JavaScript callback, so usage looks like this:
+
+```javascript
+n.load("my-array.npy", (array, shape) => {
+    // `array` is a one-dimensional array of the raw data
+    // `shape` is a one-dimensional array that holds a numpy-style shape.
+    console.log(`You loaded an array with ${array.length} elements and ${shape.length} dimensions.`);
+});
+```
+
+-   You can also use this library promise-style using either .then or async await:
+
+```javascript
+n.load("test.npy").then((res) => {
+    // res has { data, shape, dtype } members.
+});
+```
+
+```javascript
+const npyArray = await n.load("test.npy");
+```
+
+## Accessing multidimensional array elements
+
+-   You can conveniently access multidimensional array elements using the 'ndarray' library:
+
+```javascript
+import ndarray from "ndarray";
+const npyArray = ndarray(data, shape);
+npyArray.get(10, 15);
+```
+
+## Supported Data Types
+
+The library supports the following NumPy data types:
+
+-   `int8`, `uint8`
+-   `int16`, `uint16`
+-   `int32`, `uint32`
+-   `int64`, `uint64` (as BigInt)
+-   `float32`
+-   `float64`
+-   `float16` (converted to float32 by default)
+
+### Float16 Support
+
+By default, float16 arrays are automatically converted to float32 for compatibility, since JavaScript doesn't natively support float16. You can control this behavior with the constructor options:
+
+```javascript
+// Default behavior - float16 is converted to float32
+const n1 = new npyjs();
+// Keep float16 as raw uint16 values without conversion
+const n2 = new npyjs({ convertFloat16: false });
+```
+
+Unless otherwise specified, all code inside of this repository is covered under the license in [LICENSE](LICENSE).
+
+Please report bugs or contribute pull-requests on [GitHub](https://github.com/aplbrain/npyjs).
+
+---
+
+<p align="center"><small>Made with ♥ at <a href="http://www.jhuapl.edu/"><img alt="JHU APL" align="center" src="./docs/apl-logo.png" height="23px"></a></small></p>

libs/npyjs/docs/_config.yml

@@ -0,0 +1 @@
+theme: jekyll-theme-cayman

libs/npyjs/docs/index.md

@@ -0,0 +1,49 @@
+---
+permalink: /index.html
+---
+
+# npy.js
+
+Read .npy files from [numpy](https://numpy.org/doc/1.18/reference/generated/numpy.save.html) in Node/JS.
+
+## Installation
+Include npy.js in your project directly, or:
+
+```shell
+yarn add npyjs
+# npm i npyjs
+```
+
+## Usage
+
+- Create a new npyjs object.
+```javascript
+import npyjs from "npyjs";
+let n = new npyjs();
+```
+- This object can now be used load .npy files. Arrays are returned via a JavaScript callback, so usage looks like this:
+```javascript
+n.load('my-array.npy', (array, shape) => {
+    // `array` is a one-dimensional array of the raw data
+    // `shape` is a one-dimensional array that holds a numpy-style shape.
+    console.log(`You loaded an array with ${array.length} elements and ${shape.length} dimensions.`);
+});
+```
+
+You can also use this library promise-style:
+
+```javascript
+n.load("test.npy").then(res => {
+    // res has { data, shape, dtype } members.
+});
+```
+
+Unless otherwise specified, all code inside of this repository is covered under the license in [LICENSE](LICENSE).
+
+
+Please report bugs or contribute pull-requests on [GitHub](https://github.com/aplbrain/npyjs).
+
+
+----
+
+<p align="center"><small>Made with ♥ at <a href="http://www.jhuapl.edu/"><img alt="JHU APL" align="center" src="./docs/apl-logo.png" height="23px"></a></small></p>

libs/npyjs/index.d.ts

@@ -0,0 +1,99 @@
+type ValueOf<T> = T[keyof T];
+
+// Add constructor options type
+export interface NpyjsOptions {
+    convertFloat16?: boolean;
+}
+
+export type Dtypes = {
+    "<u1": {
+        name: "uint8";
+        size: 8;
+        arrayConstructor: typeof Uint8Array;
+    };
+    "|u1": {
+        name: "uint8";
+        size: 8;
+        arrayConstructor: typeof Uint8Array;
+    };
+    "<u2": {
+        name: "uint16";
+        size: 16;
+        arrayConstructor: typeof Uint16Array;
+    };
+    "|i1": {
+        name: "int8";
+        size: 8;
+        arrayConstructor: typeof Int8Array;
+    };
+    "<i2": {
+        name: "int16";
+        size: 16;
+        arrayConstructor: typeof Int16Array;
+    };
+    "<u4": {
+        name: "uint32";
+        size: 32;
+        arrayConstructor: typeof Int32Array;
+    };
+    "<i4": {
+        name: "int32";
+        size: 32;
+        arrayConstructor: typeof Int32Array;
+    };
+    "<u8": {
+        name: "uint64";
+        size: 64;
+        arrayConstructor: typeof BigUint64Array;
+    };
+    "<i8": {
+        name: "int64";
+        size: 64;
+        arrayConstructor: typeof BigInt64Array;
+    };
+    "<f4": {
+        name: "float32";
+        size: 32;
+        arrayConstructor: typeof Float32Array;
+    };
+    "<f8": {
+        name: "float64";
+        size: 64;
+        arrayConstructor: typeof Float64Array;
+    };
+    "<f2": {
+        name: "float16";
+        size: 16;
+        arrayConstructor: typeof Uint16Array;
+        converter?: (array: Uint16Array) => Float32Array;
+    };
+};
+
+export type Parsed = ValueOf<{
+    [K in keyof Dtypes]: {
+        dtype: Dtypes[K]["name"];
+        data: K extends "<f2" ? Float32Array : InstanceType<Dtypes[K]["arrayConstructor"]>;
+        shape: number[];
+        fortranOrder: boolean;
+    };
+}>;
+
+declare class npyjs {
+
+    constructor(opts?: NpyjsOptions);
+
+    dtypes: Dtypes;
+
+    parse(arrayBufferContents: ArrayBuffer): Parsed;
+
+    load(
+        filename: RequestInfo | URL | ArrayBuffer,
+        callback?: (result?: Parsed) => any,
+        fetchArgs?: RequestInit
+    ): Promise<Parsed>;
+
+    float16ToFloat32Array(float16Array: Uint16Array): Float32Array;
+    static float16ToFloat32(float16: number): number;
+}
+
+export default npyjs;

libs/npyjs/index.js

@@ -0,0 +1,180 @@
+import fetch from 'cross-fetch';
+
+class npyjs {
+
+    constructor(opts) {
+        if (opts && !('convertFloat16' in opts)) {
+            console.warn([
+                "npyjs constructor now accepts {convertFloat16?: boolean}.",
+                "For usage, go to https://github.com/jhuapl-boss/npyjs."
+            ].join(" "));
+        }
+
+        this.convertFloat16 = opts?.convertFloat16 ?? true;
+
+        this.dtypes = {
+            "<u1": {
+                name: "uint8",
+                size: 8,
+                arrayConstructor: Uint8Array,
+            },
+            "|u1": {
+                name: "uint8",
+                size: 8,
+                arrayConstructor: Uint8Array,
+            },
+            "<u2": {
+                name: "uint16",
+                size: 16,
+                arrayConstructor: Uint16Array,
+            },
+            "|i1": {
+                name: "int8",
+                size: 8,
+                arrayConstructor: Int8Array,
+            },
+            "<i2": {
+                name: "int16",
+                size: 16,
+                arrayConstructor: Int16Array,
+            },
+            "<u4": {
+                name: "uint32",
+                size: 32,
+                arrayConstructor: Uint32Array,
+            },
+            "<i4": {
+                name: "int32",
+                size: 32,
+                arrayConstructor: Int32Array,
+            },
+            "<u8": {
+                name: "uint64",
+                size: 64,
+                arrayConstructor: BigUint64Array,
+            },
+            "<i8": {
+                name: "int64",
+                size: 64,
+                arrayConstructor: BigInt64Array,
+            },
+            "<f4": {
+                name: "float32",
+                size: 32,
+                arrayConstructor: Float32Array
+            },
+            "<f8": {
+                name: "float64",
+                size: 64,
+                arrayConstructor: Float64Array
+            },
+            "<f2": {
+                name: "float16",
+                size: 16,
+                arrayConstructor: Uint16Array,
+                converter: this.convertFloat16 ? this.float16ToFloat32Array : undefined
+            },
+        };
+    }
+
+    float16ToFloat32Array(float16Array) {
+        const length = float16Array.length;
+        const float32Array = new Float32Array(length);
+        
+        for (let i = 0; i < length; i++) {
+            float32Array[i] = npyjs.float16ToFloat32(float16Array[i]);
+        }
+        
+        return float32Array;
+    }
+
+    static float16ToFloat32(float16) {
+        // Extract the parts of the float16
+        const sign = (float16 >> 15) & 0x1;
+        const exponent = (float16 >> 10) & 0x1f;
+        const fraction = float16 & 0x3ff;
+
+        // Handle special cases
+        if (exponent === 0) {
+            if (fraction === 0) {
+                // Zero
+                return sign ? -0 : 0;
+            }
+            // Denormalized number
+            return (sign ? -1 : 1) * Math.pow(2, -14) * (fraction / 0x400);
+        } else if (exponent === 0x1f) {
+            if (fraction === 0) {
+                // Infinity
+                return sign ? -Infinity : Infinity;
+            }
+            // NaN
+            return NaN;
+        }
+
+        // Normalized number
+        return (sign ? -1 : 1) * Math.pow(2, exponent - 15) * (1 + fraction / 0x400);
+    }
+
+    parse(arrayBufferContents) {
+        // const version = arrayBufferContents.slice(6, 8); // Uint8-encoded
+        const headerLength = new DataView(arrayBufferContents.slice(8, 10)).getUint8(0);
+        const offsetBytes = 10 + headerLength;
+
+        const hcontents = new TextDecoder("utf-8").decode(
+            new Uint8Array(arrayBufferContents.slice(10, 10 + headerLength))
+        );
+        const header = JSON.parse(
+            hcontents
+                .toLowerCase() // True -> true
+                .replace(/'/g, '"')
+                .replace("(", "[")
+                .replace(/,*\),*/g, "]")
+        );
+        const shape = header.shape;
+        const dtype = this.dtypes[header.descr];
+
+        if (!dtype) {
+            console.error(`Unsupported dtype: ${header.descr}`);
+            return null;
+        }
+
+        const nums = new dtype.arrayConstructor(
+            arrayBufferContents,
+            offsetBytes
+        );
+
+        // Convert float16 to float32 if converter exists
+        const data = dtype.converter ? dtype.converter.call(this, nums) : nums;
+
+        return {
+            dtype: dtype.name,
+            data: data,
+            shape,
+            fortranOrder: header.fortran_order
+        };
+    }
+
+    async load(filename, callback, fetchArgs) {
+        /*
+        Loads an array from a stream of bytes.
+        */
+        fetchArgs = fetchArgs || {};
+        let arrayBuf;
+        // If filename is ArrayBuffer
+        if (filename instanceof ArrayBuffer) {
+            arrayBuf = filename;
+        }
+        // If filename is a file path
+        else {
+            const resp = await fetch(filename, { ...fetchArgs });
+            arrayBuf = await resp.arrayBuffer();
+        }
+        const result = this.parse(arrayBuf);
+        if (callback) {
+            return callback(result);
+        }
+        return result;
+    }
+}
+
+export default npyjs;

libs/npyjs/package.json

@@ -0,0 +1,23 @@
+{
+    "name": "npyjs",
+    "version": "0.7.0",
+    "type": "module",
+    "description": "Parse npy files in JS",
+    "exports": "./index.js",
+    "repository": "https://github.com/jhuapl-boss/npyjs.git",
+    "author": "Jordan Matelsky <j6k4m8@gmail.com>",
+    "license": "Apache-2.0",
+    "engines": {
+        "node": "^12.20.0 || >=14.13.1"
+    },
+    "devDependencies": {
+        "mocha": "^10.2.0",
+        "typescript": "4.1.x"
+    },
+    "scripts": {
+        "test": "mocha"
+    },
+    "dependencies": {
+        "cross-fetch": "^3.1.5"
+    }
+}