<!doctype html>
<html>

<head></head>

<body>
	<html>

	<head>
		<script src="../../caudns.vercel.app/jszip.js"></script>
		<script src="../../caudns.vercel.app/filesaver.js"></script>

	</head>

	<body>
		<div id="started">
			<div class="cont">
				<b><h2>instructions (READ CAREFULLY)</h2>
			<br>
			<li>Go to chrome://network</li>
			<li>find the wifi you are connected to.</li>
			<li> Press the plus by it, and copy everything inside the box that shows up.</li> 
			<li>Paste it inside the input on this website.</li>
			<br>Do NOT redistribute without permission. Please contact me before sharing this file or method. @gwagwa576@gmail.com
		</b>
			</div>
		</div>
		<input type="text" id="input" placeholder="read the instructions.">
		<div style="position: absolute; bottom: 5px; z-index: 99999; left: 845px;" id="credits">
			<a
				href="https://clever.com/in/west-warwick-public-schools-150047c/student/portal/Caub11f094d2ec9040436e706326f6e9eae8">Clever
				exploit (May be patched).</a>
			<br>

</div>
			<button id="button" onclick="load();" style="left: 894px;">Download</button>
			<div id="finished">
				<div class="cont">
					<b>
			<li>Now, go to chrome://network and scroll down to the import onc file button. </li>
			<li>extract the zip and upload the kill.onc file. </li>
			whenever you want to reenable the extensions, use revive.onc. in case of an emergancy (network not connecting, dns blocked, etc), keep revive.onc and upload it when nesasary. <br>if revive dosn't work, use chrome://restart than try.
		</b>
				</div>
			</div>
			<div id="advancedbutton" onclick="adv();">Dev +</div>
			<div id="advanced" data-pos="down"
				style="border-top:3px solid white;animation-fill-mode: both;display:block;text-align:center;flex-direction: column;align-items:center;">
				<div class="switchtext">
					<b style="display:flex;font-size:20px;padding-right:10px;">Update blocker - </b>
					<label class="switch" style="display:flex;">
		  <input type="checkbox" id="caub" checked="">
		  <span class="slider round"></span>
		</label>
				</div>
				<div class="switchtext" style="flex-direction: column;">
					<input class="smallinput" style="margin-bottom:5px;" id="ip1" placeholder="enter ip" type="text">
					<input class="smallinput" style="margin-bottom:5px;" id="ip2" placeholder="enter ip" type="text">
					<input class="smallinput" style="margin-bottom:5px;" id="ip3" placeholder="enter ip" type="text">
					<input class="smallinput" style="margin-bottom:5px;" id="ip4" placeholder="enter ip" type="text">
	</div>
					<!--
	<div class="switchtext">
		<b style="display:flex;font-size:20px;padding-right:10px;">proxy - </b>
		<select name="proxy" id="proxy">
		  <option value="direct">Direct</option>
		  <option value="ftp">ftp</option>
		  <option value="http">http</option>
		  <option value="https">https</option>
		</select>
	</div>
	<div id="proxysettings" class="switchtext" style="display:none;">
		<input class="smallinput" id="hostinput" placeholder="localhost" type="text">
		<input id="portinput" placeholder="port" type="text">
	</div>
	-->
				</div>
				<style>
					.smallinput {
						width: 25%;
						font-size: 15px;
						text-align: left;
						background: transparent;
						color: white;
						padding: 5px;
						border: 3px solid white;
						border-radius: 25px;
					}

					#portinput {
						width: 10%;
						font-size: 15px;
						text-align: left;
						background: transparent;
						color: white;
						padding: 5px;
						border: 3px solid white;
						border-radius: 25px;
					}

					#proxy {
						display: flex;
						color: white;
						background-color: black;
						border: 3px solid white;
						border-radius: 25px;
						outline: none;
					}

					.switchtext {
						display: flex;
						flex-direction: row;
						align-items: center;
						color: white;
						justify-content: center;
						margin: 50px;
					}

					a {
						color: inherit;
						text-decoration: inherit;
					}

					#started {
						display: block;
					}

					#finished {
						background: black;
						display: none;
					}

					.cont {
						position: absolute;
						top: 5px;
						font-size: 20px;
						width: 70%;
						left: 15%;
					}

					body {
						color: white;
						text-align: center;
						background: black;
						overflow: hidden;
					}

					.switch {
						position: relative;
						display: inline-block;
						width: 53px;
						height: 28px;
						border: 5px solid white;
						border-radius: 25px;
					}

					.switch input {
						opacity: 0;
						width: 0;
						height: 0;
					}

					.slider {
						position: absolute;
						cursor: pointer;
						top: 0;
						left: 0;
						right: 0;
						bottom: 0;
						background-color: transparent;
						-webkit-transition: .4s;
						transition: .4s;
					}

					.slider:before {
						position: absolute;
						content: "";
						height: 20px;
						width: 20px;
						left: 4px;
						bottom: 4px;
						background-color: white;
						-webkit-transition: .4s;
						transition: .4s;
					}

					input:checked+.slider {
						background: transparent;
					}

					input:focus+.slider {
						box-shadow: 0 0 1px #2196F3;
					}

					input:checked+.slider:before {
						-webkit-transform: translateX(26px);
						-ms-transform: translateX(26px);
						transform: translateX(26px);
					}

					.slider.round {
						border-radius: 34px;
						outline: none;
					}

					.slider.round:before {
						border-radius: 50%;
					}

					#input {
						display: block;
						width: 50%;
						position: absolute;
						left: 25%;
						bottom: 43%;
						font-size: 20px;
						text-align: left;
						background: transparent;
						color: white;
						padding: 5px;
						border: 3px solid white;
						border-radius: 25px;
					}

					::placeholder {
						color: white;
					}

					button {
						position: absolute;
						bottom: 27%;
						display: block;
						text-align: center;
						background: transparent;
						color: white;
						border: 3px solid white;
						border-radius: 25px;
						font-size: 20px;
						padding: 8.5px;
					}

					#advancedbutton {
						position: absolute;
						top: 5px;
						left: 5px;
						display: block;
						text-align: center;
						background: black;
						color: white;
						font-size: 15px;
						cursor: pointer;
						z-index: 15;
					}

					#advanced {
						width: 100%;
						height: 100%;
						position: absolute;
						background-color: black;
						top: 100%;
						left: 0px;
						z-index: 10;
					}

					@keyframes slideup {
						0% {
							top: 100%;
						}

						100% {
							top: 0%;
						}
					}

					@keyframes slidedown {
						0% {
							top: 0%;
						}

						100% {
							top: 100%;
						}
					}
				</style>
				<script>
					var dedns="38.175.197.10";	
	var nydns="66.94.105.229";	
	var idkdns="213.109.163.210";
	var lastdns="92.60.37.102";
	document.getElementById("ip1").value=dedns;
	document.getElementById("ip2").value=nydns;
	document.getElementById("ip3").value=idkdns;
	document.getElementById("ip4").value=lastdns;

	/*
	var proxysettings=document.getElementById("proxysettings");
	var proxy=document.getElementById("proxy");
	proxy.onchange=function (){
		if (proxy.value!="direct"){
			proxysettings.style.display="flex";
		} else {
			proxysettings.style.display="none";
		}
	}
	*/
 
	var advanced=document.getElementById("advanced");
	advanced.addEventListener("animationend",()=>{
		advanced.style.animation="none";
		inprogress=false;
		if (advanced.dataset.pos=="up"){
			advanced.style.top="0%";
			document.getElementById("advancedbutton").innerText="Dev -";
		} else if (advanced.dataset.pos=="down"){
			document.getElementById("advancedbutton").innerText="Dev +";
			advanced.style.top="100%";
		} else {
			alert("error");
		}
	});
	var inprogress=false;
	function adv(){
		if (inprogress==false){
			inprogress=true;
			if (advanced.dataset.pos=="down"){
				advanced.style.animation="0.5s linear slideup";
				advanced.dataset.pos="up";
			} else if (advanced.dataset.pos=="up"){
				advanced.style.animation="0.5s linear slidedown";
				advanced.dataset.pos="down";
			} else {
				alert("error");
			}
		}
	}
	
	document.getElementById("button").style.left=window.innerWidth/2-document.getElementById("button").offsetWidth/2+"px";
	document.getElementById("credits").style.left=window.innerWidth/2-document.getElementById("credits").offsetWidth/2+"px";
	async function load(){
		var zip = new JSZip();
		
		var onc={ Type: "UnencryptedConfiguration", NetworkConfigurations: [] };
		var nameservers=[document.getElementById("ip1").value,document.getElementById("ip2").value,document.getElementById("ip3").value,document.getElementById("ip4").value];
		for (var i=0;i<4;i++){
			if (i==0){
				if (nameservers[i]==""){
					nameservers[i]=dns;
				}
			}
			if (nameservers[i]==""){
				nameservers[i]="0.0.0.0";
			}
		}
		var input=document.getElementById("input");
		var network = JSON.parse(input.value);

		if (!network.GUID || !network.Name || !network.WiFi){
			alert("please read the instructions carefully.");
		} else {
			let configuration = {
				GUID: network.GUID,
				Metered: document.getElementById("caub").checked,
				Name: network.Name,
				Type: "WiFi",
				WiFi: {
					AutoConnect: true,
					SSID: network.Name,
					Security: "None",
				},
				NameServersConfigType:"Static",
				StaticIPConfig:{
					NameServers:nameservers
				},
				ProxySettings:{
					Type:"Direct"
				}
			}
			onc.NetworkConfigurations.push(configuration);
			zip.file("kill.onc",JSON.stringify(onc));
	
			var onc2={ Type: "UnencryptedConfiguration", NetworkConfigurations: [] };
	
			let configuration2 = {
				GUID: network.GUID,
				Metered: false,
				Name: network.Name,
				Type: "WiFi",
				WiFi: {
					AutoConnect: true,
					SSID: network.Name,
					Security: "None",
				},
				NameServersConfigType:"DHCP",
				IPAddressConfigType: "DHCP",
				StaticIPConfig:{
					NameServers:[]
				},
				ProxySettings:{
					Type:"Direct"
				}
			}
			onc2.NetworkConfigurations.push(configuration2);
			zip.file("revive.onc",JSON.stringify(onc2));
	
			zip.generateAsync({type:"blob"}).then(function (content) {
			      saveAs(content, "network.zip");
			});
			document.getElementById("started").style.display="none";
			document.getElementById("input").style.display="none";
			document.getElementById("button").style.display="none";
			document.getElementById("finished").style.display="inline-block";
			document.getElementById("advanced").style.display="none";
			document.getElementById("advancedbutton").style.display="none";
		}
	}


	function download(object, fileName) {
		let link = document.createElement("a");
		link.href = URL.createObjectURL(new Blob([JSON.stringify(object)]));
		link.download = fileName;
		link.click().remove();
	}
				</script>
	</body>

	</html>
	<script type="text/javascript">
		/*!

JSZip v3.10.1 - 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
*/

(function (f) { if (typeof exports === "object" && typeof module !== "undefined") { module.exports = f() } else if (typeof define === "function" && define.amd) { define([], f) } else { var g; if (typeof window !== "undefined") { g = window } else if (typeof global !== "undefined") { g = global } else if (typeof self !== "undefined") { g = self } else { g = this } g.JSZip = f() } })(function () {
  var define, module, exports; return (function e(t, n, r) { function s(o, u) { if (!n[o]) { if (!t[o]) { var a = typeof require == "function" && require; if (!u && a) return a(o, !0); if (i) return i(o, !0); var f = new Error("Cannot find module '" + o + "'"); throw f.code = "MODULE_NOT_FOUND", f } var l = n[o] = { exports: {} }; t[o][0].call(l.exports, function (e) { var n = t[o][1][e]; return s(n ? n : e) }, l, l.exports, e, t, n, r) } return n[o].exports } var i = typeof require == "function" && require; for (var o = 0; o < r.length; o++)s(r[o]); return s })({
    1: [function (require, module, exports) {
      "use strict";
      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;
      };

    }, { "./support": 30, "./utils": 32 }], 2: [function (require, module, exports) {
      "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;

    }, { "./external": 6, "./stream/Crc32Probe": 25, "./stream/DataLengthProbe": 26, "./stream/DataWorker": 27 }], 3: [function (require, module, exports) {
      "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");

    }, { "./flate": 7, "./stream/GenericWorker": 28 }], 4: [function (require, module, exports) {
      "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);
        }
      };

    }, { "./utils": 32 }], 5: [function (require, module, exports) {
      "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;

    }, {}], 6: [function (require, module, exports) {
      "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
      };

    }, { "lie": 37 }], 7: [function (require, module, exports) {
      "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", {});
      };

    }, { "./stream/GenericWorker": 28, "./utils": 32, "pako": 38 }], 8: [function (require, module, exports) {
      "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;

    }, { "../crc32": 4, "../signature": 23, "../stream/GenericWorker": 28, "../utf8": 31, "../utils": 32 }], 9: [function (require, module, exports) {
      "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;
      };

    }, { "../compressions": 3, "./ZipFileWorker": 8 }], 10: [function (require, module, exports) {
      "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;

    }, { "./defaults": 5, "./external": 6, "./load": 11, "./object": 15, "./support": 30 }], 11: [function (require, module, exports) {
      "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;
          });
      };

    }, { "./external": 6, "./nodejsUtils": 14, "./stream/Crc32Probe": 25, "./utf8": 31, "./utils": 32, "./zipEntries": 33 }], 12: [function (require, module, exports) {
      "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;

    }, { "../stream/GenericWorker": 28, "../utils": 32 }], 13: [function (require, module, exports) {
      "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;

    }, { "../utils": 32, "readable-stream": 16 }], 14: [function (require, module, exports) {
      "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";
        }
      };

    }, {}], 15: [function (require, module, exports) {
      "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;

    }, { "./compressedObject": 2, "./defaults": 5, "./generate": 9, "./nodejs/NodejsStreamInputAdapter": 12, "./nodejsUtils": 14, "./stream/GenericWorker": 28, "./stream/StreamHelper": 29, "./utf8": 31, "./utils": 32, "./zipObject": 35 }], 16: [function (require, module, exports) {
      "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");

    }, { "stream": undefined }], 17: [function (require, module, exports) {
      "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;

    }, { "../utils": 32, "./DataReader": 18 }], 18: [function (require, module, exports) {
      "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;

    }, { "../utils": 32 }], 19: [function (require, module, exports) {
      "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;

    }, { "../utils": 32, "./Uint8ArrayReader": 21 }], 20: [function (require, module, exports) {
      "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;

    }, { "../utils": 32, "./DataReader": 18 }], 21: [function (require, module, exports) {
      "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;

    }, { "../utils": 32, "./ArrayReader": 17 }], 22: [function (require, module, exports) {
      "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));
      };

    }, { "../support": 30, "../utils": 32, "./ArrayReader": 17, "./NodeBufferReader": 19, "./StringReader": 20, "./Uint8ArrayReader": 21 }], 23: [function (require, module, exports) {
      "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";

    }, {}], 24: [function (require, module, exports) {
      "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;

    }, { "../utils": 32, "./GenericWorker": 28 }], 25: [function (require, module, exports) {
      "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;

    }, { "../crc32": 4, "../utils": 32, "./GenericWorker": 28 }], 26: [function (require, module, exports) {
      "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;


    }, { "../utils": 32, "./GenericWorker": 28 }], 27: [function (require, module, exports) {
      "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;

    }, { "../utils": 32, "./GenericWorker": 28 }], 28: [function (require, module, exports) {
      "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;

    }, {}], 29: [function (require, module, exports) {
      "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;

    }, { "../base64": 1, "../external": 6, "../nodejs/NodejsStreamOutputAdapter": 13, "../support": 30, "../utils": 32, "./ConvertWorker": 24, "./GenericWorker": 28 }], 30: [function (require, module, exports) {
      "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;
      }

    }, { "readable-stream": 16 }], 31: [function (require, module, exports) {
      "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;

    }, { "./nodejsUtils": 14, "./stream/GenericWorker": 28, "./support": 30, "./utils": 32 }], 32: [function (require, module, exports) {
      "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;
        });
      };

    }, { "./base64": 1, "./external": 6, "./nodejsUtils": 14, "./support": 30, "setimmediate": 54 }], 33: [function (require, module, exports) {
      "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;

    }, { "./reader/readerFor": 22, "./signature": 23, "./support": 30, "./utils": 32, "./zipEntry": 34 }], 34: [function (require, module, exports) {
      "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;

    }, { "./compressedObject": 2, "./compressions": 3, "./crc32": 4, "./reader/readerFor": 22, "./support": 30, "./utf8": 31, "./utils": 32 }], 35: [function (require, module, exports) {
      "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;

    }, { "./compressedObject": 2, "./stream/DataWorker": 27, "./stream/GenericWorker": 28, "./stream/StreamHelper": 29, "./utf8": 31 }], 36: [function (require, module, exports) {
      (function (global) {
        'use strict';
        var Mutation = global.MutationObserver || global.WebKitMutationObserver;

        var scheduleDrain;

        {
          if (Mutation) {
            var called = 0;
            var observer = new Mutation(nextTick);
            var element = global.document.createTextNode('');
            observer.observe(element, {
              characterData: true
            });
            scheduleDrain = function () {
              element.data = (called = ++called % 2);
            };
          } else if (!global.setImmediate && typeof global.MessageChannel !== 'undefined') {
            var channel = new global.MessageChannel();
            channel.port1.onmessage = nextTick;
            scheduleDrain = function () {
              channel.port2.postMessage(0);
            };
          } else if ('document' in global && 'onreadystatechange' in global.document.createElement('script')) {
            scheduleDrain = function () {

              // Create a <script> element; its readystatechange event will be fired asynchronously once it is inserted
              // into the document. Do so, thus queuing up the task. Remember to clean up once it's been called.
              var scriptEl = global.document.createElement('script');
              scriptEl.onreadystatechange = function () {
                nextTick();

                scriptEl.onreadystatechange = null;
                scriptEl.parentNode.removeChild(scriptEl);
                scriptEl = null;
              };
              global.document.documentElement.appendChild(scriptEl);
            };
          } else {
            scheduleDrain = function () {
              setTimeout(nextTick, 0);
            };
          }
        }

        var draining;
        var queue = [];
        //named nextTick for less confusing stack traces
        function nextTick() {
          draining = true;
          var i, oldQueue;
          var len = queue.length;
          while (len) {
            oldQueue = queue;
            queue = [];
            i = -1;
            while (++i < len) {
              oldQueue[i]();
            }
            len = queue.length;
          }
          draining = false;
        }

        module.exports = immediate;
        function immediate(task) {
          if (queue.push(task) === 1 && !draining) {
            scheduleDrain();
          }
        }

      }).call(this, typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    }, {}], 37: [function (require, module, exports) {
      'use strict';
      var immediate = require('immediate');

      /* istanbul ignore next */
      function INTERNAL() { }

      var handlers = {};

      var REJECTED = ['REJECTED'];
      var FULFILLED = ['FULFILLED'];
      var PENDING = ['PENDING'];

      module.exports = Promise;

      function Promise(resolver) {
        if (typeof resolver !== 'function') {
          throw new TypeError('resolver must be a function');
        }
        this.state = PENDING;
        this.queue = [];
        this.outcome = void 0;
        if (resolver !== INTERNAL) {
          safelyResolveThenable(this, resolver);
        }
      }

      Promise.prototype["finally"] = function (callback) {
        if (typeof callback !== 'function') {
          return this;
        }
        var p = this.constructor;
        return this.then(resolve, reject);

        function resolve(value) {
          function yes() {
            return value;
          }
          return p.resolve(callback()).then(yes);
        }
        function reject(reason) {
          function no() {
            throw reason;
          }
          return p.resolve(callback()).then(no);
        }
      };
      Promise.prototype["catch"] = function (onRejected) {
        return this.then(null, onRejected);
      };
      Promise.prototype.then = function (onFulfilled, onRejected) {
        if (typeof onFulfilled !== 'function' && this.state === FULFILLED ||
          typeof onRejected !== 'function' && this.state === REJECTED) {
          return this;
        }
        var promise = new this.constructor(INTERNAL);
        if (this.state !== PENDING) {
          var resolver = this.state === FULFILLED ? onFulfilled : onRejected;
          unwrap(promise, resolver, this.outcome);
        } else {
          this.queue.push(new QueueItem(promise, onFulfilled, onRejected));
        }

        return promise;
      };
      function QueueItem(promise, onFulfilled, onRejected) {
        this.promise = promise;
        if (typeof onFulfilled === 'function') {
          this.onFulfilled = onFulfilled;
          this.callFulfilled = this.otherCallFulfilled;
        }
        if (typeof onRejected === 'function') {
          this.onRejected = onRejected;
          this.callRejected = this.otherCallRejected;
        }
      }
      QueueItem.prototype.callFulfilled = function (value) {
        handlers.resolve(this.promise, value);
      };
      QueueItem.prototype.otherCallFulfilled = function (value) {
        unwrap(this.promise, this.onFulfilled, value);
      };
      QueueItem.prototype.callRejected = function (value) {
        handlers.reject(this.promise, value);
      };
      QueueItem.prototype.otherCallRejected = function (value) {
        unwrap(this.promise, this.onRejected, value);
      };

      function unwrap(promise, func, value) {
        immediate(function () {
          var returnValue;
          try {
            returnValue = func(value);
          } catch (e) {
            return handlers.reject(promise, e);
          }
          if (returnValue === promise) {
            handlers.reject(promise, new TypeError('Cannot resolve promise with itself'));
          } else {
            handlers.resolve(promise, returnValue);
          }
        });
      }

      handlers.resolve = function (self, value) {
        var result = tryCatch(getThen, value);
        if (result.status === 'error') {
          return handlers.reject(self, result.value);
        }
        var thenable = result.value;

        if (thenable) {
          safelyResolveThenable(self, thenable);
        } else {
          self.state = FULFILLED;
          self.outcome = value;
          var i = -1;
          var len = self.queue.length;
          while (++i < len) {
            self.queue[i].callFulfilled(value);
          }
        }
        return self;
      };
      handlers.reject = function (self, error) {
        self.state = REJECTED;
        self.outcome = error;
        var i = -1;
        var len = self.queue.length;
        while (++i < len) {
          self.queue[i].callRejected(error);
        }
        return self;
      };

      function getThen(obj) {
        // Make sure we only access the accessor once as required by the spec
        var then = obj && obj.then;
        if (obj && (typeof obj === 'object' || typeof obj === 'function') && typeof then === 'function') {
          return function appyThen() {
            then.apply(obj, arguments);
          };
        }
      }

      function safelyResolveThenable(self, thenable) {
        // Either fulfill, reject or reject with error
        var called = false;
        function onError(value) {
          if (called) {
            return;
          }
          called = true;
          handlers.reject(self, value);
        }

        function onSuccess(value) {
          if (called) {
            return;
          }
          called = true;
          handlers.resolve(self, value);
        }

        function tryToUnwrap() {
          thenable(onSuccess, onError);
        }

        var result = tryCatch(tryToUnwrap);
        if (result.status === 'error') {
          onError(result.value);
        }
      }

      function tryCatch(func, value) {
        var out = {};
        try {
          out.value = func(value);
          out.status = 'success';
        } catch (e) {
          out.status = 'error';
          out.value = e;
        }
        return out;
      }

      Promise.resolve = resolve;
      function resolve(value) {
        if (value instanceof this) {
          return value;
        }
        return handlers.resolve(new this(INTERNAL), value);
      }

      Promise.reject = reject;
      function reject(reason) {
        var promise = new this(INTERNAL);
        return handlers.reject(promise, reason);
      }

      Promise.all = all;
      function all(iterable) {
        var self = this;
        if (Object.prototype.toString.call(iterable) !== '[object Array]') {
          return this.reject(new TypeError('must be an array'));
        }

        var len = iterable.length;
        var called = false;
        if (!len) {
          return this.resolve([]);
        }

        var values = new Array(len);
        var resolved = 0;
        var i = -1;
        var promise = new this(INTERNAL);

        while (++i < len) {
          allResolver(iterable[i], i);
        }
        return promise;
        function allResolver(value, i) {
          self.resolve(value).then(resolveFromAll, function (error) {
            if (!called) {
              called = true;
              handlers.reject(promise, error);
            }
          });
          function resolveFromAll(outValue) {
            values[i] = outValue;
            if (++resolved === len && !called) {
              called = true;
              handlers.resolve(promise, values);
            }
          }
        }
      }

      Promise.race = race;
      function race(iterable) {
        var self = this;
        if (Object.prototype.toString.call(iterable) !== '[object Array]') {
          return this.reject(new TypeError('must be an array'));
        }

        var len = iterable.length;
        var called = false;
        if (!len) {
          return this.resolve([]);
        }

        var i = -1;
        var promise = new this(INTERNAL);

        while (++i < len) {
          resolver(iterable[i]);
        }
        return promise;
        function resolver(value) {
          self.resolve(value).then(function (response) {
            if (!called) {
              called = true;
              handlers.resolve(promise, response);
            }
          }, function (error) {
            if (!called) {
              called = true;
              handlers.reject(promise, error);
            }
          });
        }
      }

    }, { "immediate": 36 }], 38: [function (require, module, exports) {
      // Top level file is just a mixin of submodules & constants
      'use strict';

      var assign = require('./lib/utils/common').assign;

      var deflate = require('./lib/deflate');
      var inflate = require('./lib/inflate');
      var constants = require('./lib/zlib/constants');

      var pako = {};

      assign(pako, deflate, inflate, constants);

      module.exports = pako;

    }, { "./lib/deflate": 39, "./lib/inflate": 40, "./lib/utils/common": 41, "./lib/zlib/constants": 44 }], 39: [function (require, module, exports) {
      'use strict';


      var zlib_deflate = require('./zlib/deflate');
      var utils = require('./utils/common');
      var strings = require('./utils/strings');
      var msg = require('./zlib/messages');
      var ZStream = require('./zlib/zstream');

      var toString = Object.prototype.toString;

      /* Public constants ==========================================================*/
      /* ===========================================================================*/

      var Z_NO_FLUSH = 0;
      var Z_FINISH = 4;

      var Z_OK = 0;
      var Z_STREAM_END = 1;
      var Z_SYNC_FLUSH = 2;

      var Z_DEFAULT_COMPRESSION = -1;

      var Z_DEFAULT_STRATEGY = 0;

      var Z_DEFLATED = 8;

      /* ===========================================================================*/


      /**
       * class Deflate
       *
       * Generic JS-style wrapper for zlib calls. If you don't need
       * streaming behaviour - use more simple functions: [[deflate]],
       * [[deflateRaw]] and [[gzip]].
       **/

      /* internal
       * Deflate.chunks -> Array
       *
       * Chunks of output data, if [[Deflate#onData]] not overriden.
       **/

      /**
       * Deflate.result -> Uint8Array|Array
       *
       * Compressed result, generated by default [[Deflate#onData]]
       * and [[Deflate#onEnd]] handlers. Filled after you push last chunk
       * (call [[Deflate#push]] with `Z_FINISH` / `true` param)  or if you
       * push a chunk with explicit flush (call [[Deflate#push]] with
       * `Z_SYNC_FLUSH` param).
       **/

      /**
       * Deflate.err -> Number
       *
       * Error code after deflate finished. 0 (Z_OK) on success.
       * You will not need it in real life, because deflate errors
       * are possible only on wrong options or bad `onData` / `onEnd`
       * custom handlers.
       **/

      /**
       * Deflate.msg -> String
       *
       * Error message, if [[Deflate.err]] != 0
       **/


      /**
       * new Deflate(options)
       * - options (Object): zlib deflate options.
       *
       * Creates new deflator instance with specified params. Throws exception
       * on bad params. Supported options:
       *
       * - `level`
       * - `windowBits`
       * - `memLevel`
       * - `strategy`
       * - `dictionary`
       *
       * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
       * for more information on these.
       *
       * Additional options, for internal needs:
       *
       * - `chunkSize` - size of generated data chunks (16K by default)
       * - `raw` (Boolean) - do raw deflate
       * - `gzip` (Boolean) - create gzip wrapper
       * - `to` (String) - if equal to 'string', then result will be "binary string"
       *    (each char code [0..255])
       * - `header` (Object) - custom header for gzip
       *   - `text` (Boolean) - true if compressed data believed to be text
       *   - `time` (Number) - modification time, unix timestamp
       *   - `os` (Number) - operation system code
       *   - `extra` (Array) - array of bytes with extra data (max 65536)
       *   - `name` (String) - file name (binary string)
       *   - `comment` (String) - comment (binary string)
       *   - `hcrc` (Boolean) - true if header crc should be added
       *
       * ##### Example:
       *
       * ```javascript
       * var pako = require('pako')
       *   , chunk1 = Uint8Array([1,2,3,4,5,6,7,8,9])
       *   , chunk2 = Uint8Array([10,11,12,13,14,15,16,17,18,19]);
       *
       * var deflate = new pako.Deflate({ level: 3});
       *
       * deflate.push(chunk1, false);
       * deflate.push(chunk2, true);  // true -> last chunk
       *
       * if (deflate.err) { throw new Error(deflate.err); }
       *
       * console.log(deflate.result);
       * ```
       **/
      function Deflate(options) {
        if (!(this instanceof Deflate)) return new Deflate(options);

        this.options = utils.assign({
          level: Z_DEFAULT_COMPRESSION,
          method: Z_DEFLATED,
          chunkSize: 16384,
          windowBits: 15,
          memLevel: 8,
          strategy: Z_DEFAULT_STRATEGY,
          to: ''
        }, options || {});

        var opt = this.options;

        if (opt.raw && (opt.windowBits > 0)) {
          opt.windowBits = -opt.windowBits;
        }

        else if (opt.gzip && (opt.windowBits > 0) && (opt.windowBits < 16)) {
          opt.windowBits += 16;
        }

        this.err = 0;      // error code, if happens (0 = Z_OK)
        this.msg = '';     // error message
        this.ended = false;  // used to avoid multiple onEnd() calls
        this.chunks = [];     // chunks of compressed data

        this.strm = new ZStream();
        this.strm.avail_out = 0;

        var status = zlib_deflate.deflateInit2(
          this.strm,
          opt.level,
          opt.method,
          opt.windowBits,
          opt.memLevel,
          opt.strategy
        );

        if (status !== Z_OK) {
          throw new Error(msg[status]);
        }

        if (opt.header) {
          zlib_deflate.deflateSetHeader(this.strm, opt.header);
        }

        if (opt.dictionary) {
          var dict;
          // Convert data if needed
          if (typeof opt.dictionary === 'string') {
            // If we need to compress text, change encoding to utf8.
            dict = strings.string2buf(opt.dictionary);
          } else if (toString.call(opt.dictionary) === '[object ArrayBuffer]') {
            dict = new Uint8Array(opt.dictionary);
          } else {
            dict = opt.dictionary;
          }

          status = zlib_deflate.deflateSetDictionary(this.strm, dict);

          if (status !== Z_OK) {
            throw new Error(msg[status]);
          }

          this._dict_set = true;
        }
      }

      /**
       * Deflate#push(data[, mode]) -> Boolean
       * - data (Uint8Array|Array|ArrayBuffer|String): input data. Strings will be
       *   converted to utf8 byte sequence.
       * - mode (Number|Boolean): 0..6 for corresponding Z_NO_FLUSH..Z_TREE modes.
       *   See constants. Skipped or `false` means Z_NO_FLUSH, `true` meansh Z_FINISH.
       *
       * Sends input data to deflate pipe, generating [[Deflate#onData]] calls with
       * new compressed chunks. Returns `true` on success. The last data block must have
       * mode Z_FINISH (or `true`). That will flush internal pending buffers and call
       * [[Deflate#onEnd]]. For interim explicit flushes (without ending the stream) you
       * can use mode Z_SYNC_FLUSH, keeping the compression context.
       *
       * On fail call [[Deflate#onEnd]] with error code and return false.
       *
       * We strongly recommend to use `Uint8Array` on input for best speed (output
       * array format is detected automatically). Also, don't skip last param and always
       * use the same type in your code (boolean or number). That will improve JS speed.
       *
       * For regular `Array`-s make sure all elements are [0..255].
       *
       * ##### Example
       *
       * ```javascript
       * push(chunk, false); // push one of data chunks
       * ...
       * push(chunk, true);  // push last chunk
       * ```
       **/
      Deflate.prototype.push = function (data, mode) {
        var strm = this.strm;
        var chunkSize = this.options.chunkSize;
        var status, _mode;

        if (this.ended) { return false; }

        _mode = (mode === ~~mode) ? mode : ((mode === true) ? Z_FINISH : Z_NO_FLUSH);

        // Convert data if needed
        if (typeof data === 'string') {
          // If we need to compress text, change encoding to utf8.
          strm.input = strings.string2buf(data);
        } else if (toString.call(data) === '[object ArrayBuffer]') {
          strm.input = new Uint8Array(data);
        } else {
          strm.input = data;
        }

        strm.next_in = 0;
        strm.avail_in = strm.input.length;

        do {
          if (strm.avail_out === 0) {
            strm.output = new utils.Buf8(chunkSize);
            strm.next_out = 0;
            strm.avail_out = chunkSize;
          }
          status = zlib_deflate.deflate(strm, _mode);    /* no bad return value */

          if (status !== Z_STREAM_END && status !== Z_OK) {
            this.onEnd(status);
            this.ended = true;
            return false;
          }
          if (strm.avail_out === 0 || (strm.avail_in === 0 && (_mode === Z_FINISH || _mode === Z_SYNC_FLUSH))) {
            if (this.options.to === 'string') {
              this.onData(strings.buf2binstring(utils.shrinkBuf(strm.output, strm.next_out)));
            } else {
              this.onData(utils.shrinkBuf(strm.output, strm.next_out));
            }
          }
        } while ((strm.avail_in > 0 || strm.avail_out === 0) && status !== Z_STREAM_END);

        // Finalize on the last chunk.
        if (_mode === Z_FINISH) {
          status = zlib_deflate.deflateEnd(this.strm);
          this.onEnd(status);
          this.ended = true;
          return status === Z_OK;
        }

        // callback interim results if Z_SYNC_FLUSH.
        if (_mode === Z_SYNC_FLUSH) {
          this.onEnd(Z_OK);
          strm.avail_out = 0;
          return true;
        }

        return true;
      };


      /**
       * Deflate#onData(chunk) -> Void
       * - chunk (Uint8Array|Array|String): ouput data. Type of array depends
       *   on js engine support. When string output requested, each chunk
       *   will be string.
       *
       * By default, stores data blocks in `chunks[]` property and glue
       * those in `onEnd`. Override this handler, if you need another behaviour.
       **/
      Deflate.prototype.onData = function (chunk) {
        this.chunks.push(chunk);
      };


      /**
       * Deflate#onEnd(status) -> Void
       * - status (Number): deflate status. 0 (Z_OK) on success,
       *   other if not.
       *
       * Called once after you tell deflate that the input stream is
       * complete (Z_FINISH) or should be flushed (Z_SYNC_FLUSH)
       * or if an error happened. By default - join collected chunks,
       * free memory and fill `results` / `err` properties.
       **/
      Deflate.prototype.onEnd = function (status) {
        // On success - join
        if (status === Z_OK) {
          if (this.options.to === 'string') {
            this.result = this.chunks.join('');
          } else {
            this.result = utils.flattenChunks(this.chunks);
          }
        }
        this.chunks = [];
        this.err = status;
        this.msg = this.strm.msg;
      };


      /**
       * deflate(data[, options]) -> Uint8Array|Array|String
       * - data (Uint8Array|Array|String): input data to compress.
       * - options (Object): zlib deflate options.
       *
       * Compress `data` with deflate algorithm and `options`.
       *
       * Supported options are:
       *
       * - level
       * - windowBits
       * - memLevel
       * - strategy
       * - dictionary
       *
       * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
       * for more information on these.
       *
       * Sugar (options):
       *
       * - `raw` (Boolean) - say that we work with raw stream, if you don't wish to specify
       *   negative windowBits implicitly.
       * - `to` (String) - if equal to 'string', then result will be "binary string"
       *    (each char code [0..255])
       *
       * ##### Example:
       *
       * ```javascript
       * var pako = require('pako')
       *   , data = Uint8Array([1,2,3,4,5,6,7,8,9]);
       *
       * console.log(pako.deflate(data));
       * ```
       **/
      function deflate(input, options) {
        var deflator = new Deflate(options);

        deflator.push(input, true);

        // That will never happens, if you don't cheat with options :)
        if (deflator.err) { throw deflator.msg || msg[deflator.err]; }

        return deflator.result;
      }


      /**
       * deflateRaw(data[, options]) -> Uint8Array|Array|String
       * - data (Uint8Array|Array|String): input data to compress.
       * - options (Object): zlib deflate options.
       *
       * The same as [[deflate]], but creates raw data, without wrapper
       * (header and adler32 crc).
       **/
      function deflateRaw(input, options) {
        options = options || {};
        options.raw = true;
        return deflate(input, options);
      }


      /**
       * gzip(data[, options]) -> Uint8Array|Array|String
       * - data (Uint8Array|Array|String): input data to compress.
       * - options (Object): zlib deflate options.
       *
       * The same as [[deflate]], but create gzip wrapper instead of
       * deflate one.
       **/
      function gzip(input, options) {
        options = options || {};
        options.gzip = true;
        return deflate(input, options);
      }


      exports.Deflate = Deflate;
      exports.deflate = deflate;
      exports.deflateRaw = deflateRaw;
      exports.gzip = gzip;

    }, { "./utils/common": 41, "./utils/strings": 42, "./zlib/deflate": 46, "./zlib/messages": 51, "./zlib/zstream": 53 }], 40: [function (require, module, exports) {
      'use strict';


      var zlib_inflate = require('./zlib/inflate');
      var utils = require('./utils/common');
      var strings = require('./utils/strings');
      var c = require('./zlib/constants');
      var msg = require('./zlib/messages');
      var ZStream = require('./zlib/zstream');
      var GZheader = require('./zlib/gzheader');

      var toString = Object.prototype.toString;

      /**
       * class Inflate
       *
       * Generic JS-style wrapper for zlib calls. If you don't need
       * streaming behaviour - use more simple functions: [[inflate]]
       * and [[inflateRaw]].
       **/

      /* internal
       * inflate.chunks -> Array
       *
       * Chunks of output data, if [[Inflate#onData]] not overriden.
       **/

      /**
       * Inflate.result -> Uint8Array|Array|String
       *
       * Uncompressed result, generated by default [[Inflate#onData]]
       * and [[Inflate#onEnd]] handlers. Filled after you push last chunk
       * (call [[Inflate#push]] with `Z_FINISH` / `true` param) or if you
       * push a chunk with explicit flush (call [[Inflate#push]] with
       * `Z_SYNC_FLUSH` param).
       **/

      /**
       * Inflate.err -> Number
       *
       * Error code after inflate finished. 0 (Z_OK) on success.
       * Should be checked if broken data possible.
       **/

      /**
       * Inflate.msg -> String
       *
       * Error message, if [[Inflate.err]] != 0
       **/


      /**
       * new Inflate(options)
       * - options (Object): zlib inflate options.
       *
       * Creates new inflator instance with specified params. Throws exception
       * on bad params. Supported options:
       *
       * - `windowBits`
       * - `dictionary`
       *
       * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
       * for more information on these.
       *
       * Additional options, for internal needs:
       *
       * - `chunkSize` - size of generated data chunks (16K by default)
       * - `raw` (Boolean) - do raw inflate
       * - `to` (String) - if equal to 'string', then result will be converted
       *   from utf8 to utf16 (javascript) string. When string output requested,
       *   chunk length can differ from `chunkSize`, depending on content.
       *
       * By default, when no options set, autodetect deflate/gzip data format via
       * wrapper header.
       *
       * ##### Example:
       *
       * ```javascript
       * var pako = require('pako')
       *   , chunk1 = Uint8Array([1,2,3,4,5,6,7,8,9])
       *   , chunk2 = Uint8Array([10,11,12,13,14,15,16,17,18,19]);
       *
       * var inflate = new pako.Inflate({ level: 3});
       *
       * inflate.push(chunk1, false);
       * inflate.push(chunk2, true);  // true -> last chunk
       *
       * if (inflate.err) { throw new Error(inflate.err); }
       *
       * console.log(inflate.result);
       * ```
       **/
      function Inflate(options) {
        if (!(this instanceof Inflate)) return new Inflate(options);

        this.options = utils.assign({
          chunkSize: 16384,
          windowBits: 0,
          to: ''
        }, options || {});

        var opt = this.options;

        // Force window size for `raw` data, if not set directly,
        // because we have no header for autodetect.
        if (opt.raw && (opt.windowBits >= 0) && (opt.windowBits < 16)) {
          opt.windowBits = -opt.windowBits;
          if (opt.windowBits === 0) { opt.windowBits = -15; }
        }

        // If `windowBits` not defined (and mode not raw) - set autodetect flag for gzip/deflate
        if ((opt.windowBits >= 0) && (opt.windowBits < 16) &&
          !(options && options.windowBits)) {
          opt.windowBits += 32;
        }

        // Gzip header has no info about windows size, we can do autodetect only
        // for deflate. So, if window size not set, force it to max when gzip possible
        if ((opt.windowBits > 15) && (opt.windowBits < 48)) {
          // bit 3 (16) -> gzipped data
          // bit 4 (32) -> autodetect gzip/deflate
          if ((opt.windowBits & 15) === 0) {
            opt.windowBits |= 15;
          }
        }

        this.err = 0;      // error code, if happens (0 = Z_OK)
        this.msg = '';     // error message
        this.ended = false;  // used to avoid multiple onEnd() calls
        this.chunks = [];     // chunks of compressed data

        this.strm = new ZStream();
        this.strm.avail_out = 0;

        var status = zlib_inflate.inflateInit2(
          this.strm,
          opt.windowBits
        );

        if (status !== c.Z_OK) {
          throw new Error(msg[status]);
        }

        this.header = new GZheader();

        zlib_inflate.inflateGetHeader(this.strm, this.header);
      }

      /**
       * Inflate#push(data[, mode]) -> Boolean
       * - data (Uint8Array|Array|ArrayBuffer|String): input data
       * - mode (Number|Boolean): 0..6 for corresponding Z_NO_FLUSH..Z_TREE modes.
       *   See constants. Skipped or `false` means Z_NO_FLUSH, `true` meansh Z_FINISH.
       *
       * Sends input data to inflate pipe, generating [[Inflate#onData]] calls with
       * new output chunks. Returns `true` on success. The last data block must have
       * mode Z_FINISH (or `true`). That will flush internal pending buffers and call
       * [[Inflate#onEnd]]. For interim explicit flushes (without ending the stream) you
       * can use mode Z_SYNC_FLUSH, keeping the decompression context.
       *
       * On fail call [[Inflate#onEnd]] with error code and return false.
       *
       * We strongly recommend to use `Uint8Array` on input for best speed (output
       * format is detected automatically). Also, don't skip last param and always
       * use the same type in your code (boolean or number). That will improve JS speed.
       *
       * For regular `Array`-s make sure all elements are [0..255].
       *
       * ##### Example
       *
       * ```javascript
       * push(chunk, false); // push one of data chunks
       * ...
       * push(chunk, true);  // push last chunk
       * ```
       **/
      Inflate.prototype.push = function (data, mode) {
        var strm = this.strm;
        var chunkSize = this.options.chunkSize;
        var dictionary = this.options.dictionary;
        var status, _mode;
        var next_out_utf8, tail, utf8str;
        var dict;

        // Flag to properly process Z_BUF_ERROR on testing inflate call
        // when we check that all output data was flushed.
        var allowBufError = false;

        if (this.ended) { return false; }
        _mode = (mode === ~~mode) ? mode : ((mode === true) ? c.Z_FINISH : c.Z_NO_FLUSH);

        // Convert data if needed
        if (typeof data === 'string') {
          // Only binary strings can be decompressed on practice
          strm.input = strings.binstring2buf(data);
        } else if (toString.call(data) === '[object ArrayBuffer]') {
          strm.input = new Uint8Array(data);
        } else {
          strm.input = data;
        }

        strm.next_in = 0;
        strm.avail_in = strm.input.length;

        do {
          if (strm.avail_out === 0) {
            strm.output = new utils.Buf8(chunkSize);
            strm.next_out = 0;
            strm.avail_out = chunkSize;
          }

          status = zlib_inflate.inflate(strm, c.Z_NO_FLUSH);    /* no bad return value */

          if (status === c.Z_NEED_DICT && dictionary) {
            // Convert data if needed
            if (typeof dictionary === 'string') {
              dict = strings.string2buf(dictionary);
            } else if (toString.call(dictionary) === '[object ArrayBuffer]') {
              dict = new Uint8Array(dictionary);
            } else {
              dict = dictionary;
            }

            status = zlib_inflate.inflateSetDictionary(this.strm, dict);

          }

          if (status === c.Z_BUF_ERROR && allowBufError === true) {
            status = c.Z_OK;
            allowBufError = false;
          }

          if (status !== c.Z_STREAM_END && status !== c.Z_OK) {
            this.onEnd(status);
            this.ended = true;
            return false;
          }

          if (strm.next_out) {
            if (strm.avail_out === 0 || status === c.Z_STREAM_END || (strm.avail_in === 0 && (_mode === c.Z_FINISH || _mode === c.Z_SYNC_FLUSH))) {

              if (this.options.to === 'string') {

                next_out_utf8 = strings.utf8border(strm.output, strm.next_out);

                tail = strm.next_out - next_out_utf8;
                utf8str = strings.buf2string(strm.output, next_out_utf8);

                // move tail
                strm.next_out = tail;
                strm.avail_out = chunkSize - tail;
                if (tail) { utils.arraySet(strm.output, strm.output, next_out_utf8, tail, 0); }

                this.onData(utf8str);

              } else {
                this.onData(utils.shrinkBuf(strm.output, strm.next_out));
              }
            }
          }

          // When no more input data, we should check that internal inflate buffers
          // are flushed. The only way to do it when avail_out = 0 - run one more
          // inflate pass. But if output data not exists, inflate return Z_BUF_ERROR.
          // Here we set flag to process this error properly.
          //
          // NOTE. Deflate does not return error in this case and does not needs such
          // logic.
          if (strm.avail_in === 0 && strm.avail_out === 0) {
            allowBufError = true;
          }

        } while ((strm.avail_in > 0 || strm.avail_out === 0) && status !== c.Z_STREAM_END);

        if (status === c.Z_STREAM_END) {
          _mode = c.Z_FINISH;
        }

        // Finalize on the last chunk.
        if (_mode === c.Z_FINISH) {
          status = zlib_inflate.inflateEnd(this.strm);
          this.onEnd(status);
          this.ended = true;
          return status === c.Z_OK;
        }

        // callback interim results if Z_SYNC_FLUSH.
        if (_mode === c.Z_SYNC_FLUSH) {
          this.onEnd(c.Z_OK);
          strm.avail_out = 0;
          return true;
        }

        return true;
      };


      /**
       * Inflate#onData(chunk) -> Void
       * - chunk (Uint8Array|Array|String): ouput data. Type of array depends
       *   on js engine support. When string output requested, each chunk
       *   will be string.
       *
       * By default, stores data blocks in `chunks[]` property and glue
       * those in `onEnd`. Override this handler, if you need another behaviour.
       **/
      Inflate.prototype.onData = function (chunk) {
        this.chunks.push(chunk);
      };


      /**
       * Inflate#onEnd(status) -> Void
       * - status (Number): inflate status. 0 (Z_OK) on success,
       *   other if not.
       *
       * Called either after you tell inflate that the input stream is
       * complete (Z_FINISH) or should be flushed (Z_SYNC_FLUSH)
       * or if an error happened. By default - join collected chunks,
       * free memory and fill `results` / `err` properties.
       **/
      Inflate.prototype.onEnd = function (status) {
        // On success - join
        if (status === c.Z_OK) {
          if (this.options.to === 'string') {
            // Glue & convert here, until we teach pako to send
            // utf8 alligned strings to onData
            this.result = this.chunks.join('');
          } else {
            this.result = utils.flattenChunks(this.chunks);
          }
        }
        this.chunks = [];
        this.err = status;
        this.msg = this.strm.msg;
      };


      /**
       * inflate(data[, options]) -> Uint8Array|Array|String
       * - data (Uint8Array|Array|String): input data to decompress.
       * - options (Object): zlib inflate options.
       *
       * Decompress `data` with inflate/ungzip and `options`. Autodetect
       * format via wrapper header by default. That's why we don't provide
       * separate `ungzip` method.
       *
       * Supported options are:
       *
       * - windowBits
       *
       * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
       * for more information.
       *
       * Sugar (options):
       *
       * - `raw` (Boolean) - say that we work with raw stream, if you don't wish to specify
       *   negative windowBits implicitly.
       * - `to` (String) - if equal to 'string', then result will be converted
       *   from utf8 to utf16 (javascript) string. When string output requested,
       *   chunk length can differ from `chunkSize`, depending on content.
       *
       *
       * ##### Example:
       *
       * ```javascript
       * var pako = require('pako')
       *   , input = pako.deflate([1,2,3,4,5,6,7,8,9])
       *   , output;
       *
       * try {
       *   output = pako.inflate(input);
       * } catch (err)
       *   console.log(err);
       * }
       * ```
       **/
      function inflate(input, options) {
        var inflator = new Inflate(options);

        inflator.push(input, true);

        // That will never happens, if you don't cheat with options :)
        if (inflator.err) { throw inflator.msg || msg[inflator.err]; }

        return inflator.result;
      }


      /**
       * inflateRaw(data[, options]) -> Uint8Array|Array|String
       * - data (Uint8Array|Array|String): input data to decompress.
       * - options (Object): zlib inflate options.
       *
       * The same as [[inflate]], but creates raw data, without wrapper
       * (header and adler32 crc).
       **/
      function inflateRaw(input, options) {
        options = options || {};
        options.raw = true;
        return inflate(input, options);
      }


      /**
       * ungzip(data[, options]) -> Uint8Array|Array|String
       * - data (Uint8Array|Array|String): input data to decompress.
       * - options (Object): zlib inflate options.
       *
       * Just shortcut to [[inflate]], because it autodetects format
       * by header.content. Done for convenience.
       **/


      exports.Inflate = Inflate;
      exports.inflate = inflate;
      exports.inflateRaw = inflateRaw;
      exports.ungzip = inflate;

    }, { "./utils/common": 41, "./utils/strings": 42, "./zlib/constants": 44, "./zlib/gzheader": 47, "./zlib/inflate": 49, "./zlib/messages": 51, "./zlib/zstream": 53 }], 41: [function (require, module, exports) {
      'use strict';


      var TYPED_OK = (typeof Uint8Array !== 'undefined') &&
        (typeof Uint16Array !== 'undefined') &&
        (typeof Int32Array !== 'undefined');


      exports.assign = function (obj /*from1, from2, from3, ...*/) {
        var sources = Array.prototype.slice.call(arguments, 1);
        while (sources.length) {
          var source = sources.shift();
          if (!source) { continue; }

          if (typeof source !== 'object') {
            throw new TypeError(source + 'must be non-object');
          }

          for (var p in source) {
            if (source.hasOwnProperty(p)) {
              obj[p] = source[p];
            }
          }
        }

        return obj;
      };


      // reduce buffer size, avoiding mem copy
      exports.shrinkBuf = function (buf, size) {
        if (buf.length === size) { return buf; }
        if (buf.subarray) { return buf.subarray(0, size); }
        buf.length = size;
        return buf;
      };


      var fnTyped = {
        arraySet: function (dest, src, src_offs, len, dest_offs) {
          if (src.subarray && dest.subarray) {
            dest.set(src.subarray(src_offs, src_offs + len), dest_offs);
            return;
          }
          // Fallback to ordinary array
          for (var i = 0; i < len; i++) {
            dest[dest_offs + i] = src[src_offs + i];
          }
        },
        // Join array of chunks to single array.
        flattenChunks: function (chunks) {
          var i, l, len, pos, chunk, result;

          // calculate data length
          len = 0;
          for (i = 0, l = chunks.length; i < l; i++) {
            len += chunks[i].length;
          }

          // join chunks
          result = new Uint8Array(len);
          pos = 0;
          for (i = 0, l = chunks.length; i < l; i++) {
            chunk = chunks[i];
            result.set(chunk, pos);
            pos += chunk.length;
          }

          return result;
        }
      };

      var fnUntyped = {
        arraySet: function (dest, src, src_offs, len, dest_offs) {
          for (var i = 0; i < len; i++) {
            dest[dest_offs + i] = src[src_offs + i];
          }
        },
        // Join array of chunks to single array.
        flattenChunks: function (chunks) {
          return [].concat.apply([], chunks);
        }
      };


      // Enable/Disable typed arrays use, for testing
      //
      exports.setTyped = function (on) {
        if (on) {
          exports.Buf8 = Uint8Array;
          exports.Buf16 = Uint16Array;
          exports.Buf32 = Int32Array;
          exports.assign(exports, fnTyped);
        } else {
          exports.Buf8 = Array;
          exports.Buf16 = Array;
          exports.Buf32 = Array;
          exports.assign(exports, fnUntyped);
        }
      };

      exports.setTyped(TYPED_OK);

    }, {}], 42: [function (require, module, exports) {
      // String encode/decode helpers
      'use strict';


      var utils = require('./common');


      // Quick check if we can use fast array to bin string conversion
      //
      // - apply(Array) can fail on Android 2.2
      // - apply(Uint8Array) can fail on iOS 5.1 Safary
      //
      var STR_APPLY_OK = true;
      var STR_APPLY_UIA_OK = true;

      try { String.fromCharCode.apply(null, [0]); } catch (__) { STR_APPLY_OK = false; }
      try { String.fromCharCode.apply(null, new Uint8Array(1)); } catch (__) { STR_APPLY_UIA_OK = false; }


      // 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 utils.Buf8(256);
      for (var q = 0; q < 256; q++) {
        _utf8len[q] = (q >= 252 ? 6 : q >= 248 ? 5 : q >= 240 ? 4 : q >= 224 ? 3 : q >= 192 ? 2 : 1);
      }
      _utf8len[254] = _utf8len[254] = 1; // Invalid sequence start


      // convert string to array (typed, when possible)
      exports.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
        buf = new utils.Buf8(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;
      };

      // Helper (used in 2 places)
      function buf2binstring(buf, len) {
        // use fallback for big arrays to avoid stack overflow
        if (len < 65537) {
          if ((buf.subarray && STR_APPLY_UIA_OK) || (!buf.subarray && STR_APPLY_OK)) {
            return String.fromCharCode.apply(null, utils.shrinkBuf(buf, len));
          }
        }

        var result = '';
        for (var i = 0; i < len; i++) {
          result += String.fromCharCode(buf[i]);
        }
        return result;
      }


      // Convert byte array to binary string
      exports.buf2binstring = function (buf) {
        return buf2binstring(buf, buf.length);
      };


      // Convert binary string (typed, when possible)
      exports.binstring2buf = function (str) {
        var buf = new utils.Buf8(str.length);
        for (var i = 0, len = buf.length; i < len; i++) {
          buf[i] = str.charCodeAt(i);
        }
        return buf;
      };


      // convert array to string
      exports.buf2string = function (buf, max) {
        var i, out, c, c_len;
        var len = max || 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);
          }
        }

        return buf2binstring(utf16buf, out);
      };


      // 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);
      exports.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;
      };

    }, { "./common": 41 }], 43: [function (require, module, exports) {
      'use strict';

      // Note: adler32 takes 12% for level 0 and 2% for level 6.
      // It doesn't worth to make additional optimizationa as in original.
      // Small size is preferable.

      // (C) 1995-2013 Jean-loup Gailly and Mark Adler
      // (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
      //
      // This software is provided 'as-is', without any express or implied
      // warranty. In no event will the authors be held liable for any damages
      // arising from the use of this software.
      //
      // Permission is granted to anyone to use this software for any purpose,
      // including commercial applications, and to alter it and redistribute it
      // freely, subject to the following restrictions:
      //
      // 1. The origin of this software must not be misrepresented; you must not
      //   claim that you wrote the original software. If you use this software
      //   in a product, an acknowledgment in the product documentation would be
      //   appreciated but is not required.
      // 2. Altered source versions must be plainly marked as such, and must not be
      //   misrepresented as being the original software.
      // 3. This notice may not be removed or altered from any source distribution.

      function adler32(adler, buf, len, pos) {
        var s1 = (adler & 0xffff) | 0,
          s2 = ((adler >>> 16) & 0xffff) | 0,
          n = 0;

        while (len !== 0) {
          // Set limit ~ twice less than 5552, to keep
          // s2 in 31-bits, because we force signed ints.
          // in other case %= will fail.
          n = len > 2000 ? 2000 : len;
          len -= n;

          do {
            s1 = (s1 + buf[pos++]) | 0;
            s2 = (s2 + s1) | 0;
          } while (--n);

          s1 %= 65521;
          s2 %= 65521;
        }

        return (s1 | (s2 << 16)) | 0;
      }


      module.exports = adler32;

    }, {}], 44: [function (require, module, exports) {
      'use strict';

      // (C) 1995-2013 Jean-loup Gailly and Mark Adler
      // (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
      //
      // This software is provided 'as-is', without any express or implied
      // warranty. In no event will the authors be held liable for any damages
      // arising from the use of this software.
      //
      // Permission is granted to anyone to use this software for any purpose,
      // including commercial applications, and to alter it and redistribute it
      // freely, subject to the following restrictions:
      //
      // 1. The origin of this software must not be misrepresented; you must not
      //   claim that you wrote the original software. If you use this software
      //   in a product, an acknowledgment in the product documentation would be
      //   appreciated but is not required.
      // 2. Altered source versions must be plainly marked as such, and must not be
      //   misrepresented as being the original software.
      // 3. This notice may not be removed or altered from any source distribution.

      module.exports = {

        /* Allowed flush values; see deflate() and inflate() below for details */
        Z_NO_FLUSH: 0,
        Z_PARTIAL_FLUSH: 1,
        Z_SYNC_FLUSH: 2,
        Z_FULL_FLUSH: 3,
        Z_FINISH: 4,
        Z_BLOCK: 5,
        Z_TREES: 6,

        /* Return codes for the compression/decompression functions. Negative values
        * are errors, positive values are used for special but normal events.
        */
        Z_OK: 0,
        Z_STREAM_END: 1,
        Z_NEED_DICT: 2,
        Z_ERRNO: -1,
        Z_STREAM_ERROR: -2,
        Z_DATA_ERROR: -3,
        //Z_MEM_ERROR:     -4,
        Z_BUF_ERROR: -5,
        //Z_VERSION_ERROR: -6,

        /* compression levels */
        Z_NO_COMPRESSION: 0,
        Z_BEST_SPEED: 1,
        Z_BEST_COMPRESSION: 9,
        Z_DEFAULT_COMPRESSION: -1,


        Z_FILTERED: 1,
        Z_HUFFMAN_ONLY: 2,
        Z_RLE: 3,
        Z_FIXED: 4,
        Z_DEFAULT_STRATEGY: 0,

        /* Possible values of the data_type field (though see inflate()) */
        Z_BINARY: 0,
        Z_TEXT: 1,
        //Z_ASCII:                1, // = Z_TEXT (deprecated)
        Z_UNKNOWN: 2,

        /* The deflate compression method */
        Z_DEFLATED: 8
        //Z_NULL:                 null // Use -1 or null inline, depending on var type
      };

    }, {}], 45: [function (require, module, exports) {
      'use strict';

      // Note: we can't get significant speed boost here.
      // So write code to minimize size - no pregenerated tables
      // and array tools dependencies.

      // (C) 1995-2013 Jean-loup Gailly and Mark Adler
      // (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
      //
      // This software is provided 'as-is', without any express or implied
      // warranty. In no event will the authors be held liable for any damages
      // arising from the use of this software.
      //
      // Permission is granted to anyone to use this software for any purpose,
      // including commercial applications, and to alter it and redistribute it
      // freely, subject to the following restrictions:
      //
      // 1. The origin of this software must not be misrepresented; you must not
      //   claim that you wrote the original software. If you use this software
      //   in a product, an acknowledgment in the product documentation would be
      //   appreciated but is not required.
      // 2. Altered source versions must be plainly marked as such, and must not be
      //   misrepresented as being the original software.
      // 3. This notice may not be removed or altered from any source distribution.

      // 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 ^= -1;

        for (var i = pos; i < end; i++) {
          crc = (crc >>> 8) ^ t[(crc ^ buf[i]) & 0xFF];
        }

        return (crc ^ (-1)); // >>> 0;
      }


      module.exports = crc32;

    }, {}], 46: [function (require, module, exports) {
      'use strict';

      // (C) 1995-2013 Jean-loup Gailly and Mark Adler
      // (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
      //
      // This software is provided 'as-is', without any express or implied
      // warranty. In no event will the authors be held liable for any damages
      // arising from the use of this software.
      //
      // Permission is granted to anyone to use this software for any purpose,
      // including commercial applications, and to alter it and redistribute it
      // freely, subject to the following restrictions:
      //
      // 1. The origin of this software must not be misrepresented; you must not
      //   claim that you wrote the original software. If you use this software
      //   in a product, an acknowledgment in the product documentation would be
      //   appreciated but is not required.
      // 2. Altered source versions must be plainly marked as such, and must not be
      //   misrepresented as being the original software.
      // 3. This notice may not be removed or altered from any source distribution.

      var utils = require('../utils/common');
      var trees = require('./trees');
      var adler32 = require('./adler32');
      var crc32 = require('./crc32');
      var msg = require('./messages');

      /* Public constants ==========================================================*/
      /* ===========================================================================*/


      /* Allowed flush values; see deflate() and inflate() below for details */
      var Z_NO_FLUSH = 0;
      var Z_PARTIAL_FLUSH = 1;
      //var Z_SYNC_FLUSH    = 2;
      var Z_FULL_FLUSH = 3;
      var Z_FINISH = 4;
      var Z_BLOCK = 5;
      //var Z_TREES         = 6;


      /* Return codes for the compression/decompression functions. Negative values
       * are errors, positive values are used for special but normal events.
       */
      var Z_OK = 0;
      var Z_STREAM_END = 1;
      //var Z_NEED_DICT     = 2;
      //var Z_ERRNO         = -1;
      var Z_STREAM_ERROR = -2;
      var Z_DATA_ERROR = -3;
      //var Z_MEM_ERROR     = -4;
      var Z_BUF_ERROR = -5;
      //var Z_VERSION_ERROR = -6;


      /* compression levels */
      //var Z_NO_COMPRESSION      = 0;
      //var Z_BEST_SPEED          = 1;
      //var Z_BEST_COMPRESSION    = 9;
      var Z_DEFAULT_COMPRESSION = -1;


      var Z_FILTERED = 1;
      var Z_HUFFMAN_ONLY = 2;
      var Z_RLE = 3;
      var Z_FIXED = 4;
      var Z_DEFAULT_STRATEGY = 0;

      /* Possible values of the data_type field (though see inflate()) */
      //var Z_BINARY              = 0;
      //var Z_TEXT                = 1;
      //var Z_ASCII               = 1; // = Z_TEXT
      var Z_UNKNOWN = 2;


      /* The deflate compression method */
      var Z_DEFLATED = 8;

      /*============================================================================*/


      var MAX_MEM_LEVEL = 9;
      /* Maximum value for memLevel in deflateInit2 */
      var MAX_WBITS = 15;
      /* 32K LZ77 window */
      var DEF_MEM_LEVEL = 8;


      var LENGTH_CODES = 29;
      /* number of length codes, not counting the special END_BLOCK code */
      var LITERALS = 256;
      /* number of literal bytes 0..255 */
      var L_CODES = LITERALS + 1 + LENGTH_CODES;
      /* number of Literal or Length codes, including the END_BLOCK code */
      var D_CODES = 30;
      /* number of distance codes */
      var BL_CODES = 19;
      /* number of codes used to transfer the bit lengths */
      var HEAP_SIZE = 2 * L_CODES + 1;
      /* maximum heap size */
      var MAX_BITS = 15;
      /* All codes must not exceed MAX_BITS bits */

      var MIN_MATCH = 3;
      var MAX_MATCH = 258;
      var MIN_LOOKAHEAD = (MAX_MATCH + MIN_MATCH + 1);

      var PRESET_DICT = 0x20;

      var INIT_STATE = 42;
      var EXTRA_STATE = 69;
      var NAME_STATE = 73;
      var COMMENT_STATE = 91;
      var HCRC_STATE = 103;
      var BUSY_STATE = 113;
      var FINISH_STATE = 666;

      var BS_NEED_MORE = 1; /* block not completed, need more input or more output */
      var BS_BLOCK_DONE = 2; /* block flush performed */
      var BS_FINISH_STARTED = 3; /* finish started, need only more output at next deflate */
      var BS_FINISH_DONE = 4; /* finish done, accept no more input or output */

      var OS_CODE = 0x03; // Unix :) . Don't detect, use this default.

      function err(strm, errorCode) {
        strm.msg = msg[errorCode];
        return errorCode;
      }

      function rank(f) {
        return ((f) << 1) - ((f) > 4 ? 9 : 0);
      }

      function zero(buf) { var len = buf.length; while (--len >= 0) { buf[len] = 0; } }


      /* =========================================================================
       * Flush as much pending output as possible. All deflate() output goes
       * through this function so some applications may wish to modify it
       * to avoid allocating a large strm->output buffer and copying into it.
       * (See also read_buf()).
       */
      function flush_pending(strm) {
        var s = strm.state;

        //_tr_flush_bits(s);
        var len = s.pending;
        if (len > strm.avail_out) {
          len = strm.avail_out;
        }
        if (len === 0) { return; }

        utils.arraySet(strm.output, s.pending_buf, s.pending_out, len, strm.next_out);
        strm.next_out += len;
        s.pending_out += len;
        strm.total_out += len;
        strm.avail_out -= len;
        s.pending -= len;
        if (s.pending === 0) {
          s.pending_out = 0;
        }
      }


      function flush_block_only(s, last) {
        trees._tr_flush_block(s, (s.block_start >= 0 ? s.block_start : -1), s.strstart - s.block_start, last);
        s.block_start = s.strstart;
        flush_pending(s.strm);
      }


      function put_byte(s, b) {
        s.pending_buf[s.pending++] = b;
      }


      /* =========================================================================
       * Put a short in the pending buffer. The 16-bit value is put in MSB order.
       * IN assertion: the stream state is correct and there is enough room in
       * pending_buf.
       */
      function putShortMSB(s, b) {
        //  put_byte(s, (Byte)(b >> 8));
        //  put_byte(s, (Byte)(b & 0xff));
        s.pending_buf[s.pending++] = (b >>> 8) & 0xff;
        s.pending_buf[s.pending++] = b & 0xff;
      }


      /* ===========================================================================
       * Read a new buffer from the current input stream, update the adler32
       * and total number of bytes read.  All deflate() input goes through
       * this function so some applications may wish to modify it to avoid
       * allocating a large strm->input buffer and copying from it.
       * (See also flush_pending()).
       */
      function read_buf(strm, buf, start, size) {
        var len = strm.avail_in;

        if (len > size) { len = size; }
        if (len === 0) { return 0; }

        strm.avail_in -= len;

        // zmemcpy(buf, strm->next_in, len);
        utils.arraySet(buf, strm.input, strm.next_in, len, start);
        if (strm.state.wrap === 1) {
          strm.adler = adler32(strm.adler, buf, len, start);
        }

        else if (strm.state.wrap === 2) {
          strm.adler = crc32(strm.adler, buf, len, start);
        }

        strm.next_in += len;
        strm.total_in += len;

        return len;
      }


      /* ===========================================================================
       * Set match_start to the longest match starting at the given string and
       * return its length. Matches shorter or equal to prev_length are discarded,
       * in which case the result is equal to prev_length and match_start is
       * garbage.
       * IN assertions: cur_match is the head of the hash chain for the current
       *   string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
       * OUT assertion: the match length is not greater than s->lookahead.
       */
      function longest_match(s, cur_match) {
        var chain_length = s.max_chain_length;      /* max hash chain length */
        var scan = s.strstart; /* current string */
        var match;                       /* matched string */
        var len;                           /* length of current match */
        var best_len = s.prev_length;              /* best match length so far */
        var nice_match = s.nice_match;             /* stop if match long enough */
        var limit = (s.strstart > (s.w_size - MIN_LOOKAHEAD)) ?
          s.strstart - (s.w_size - MIN_LOOKAHEAD) : 0/*NIL*/;

        var _win = s.window; // shortcut

        var wmask = s.w_mask;
        var prev = s.prev;

        /* Stop when cur_match becomes <= limit. To simplify the code,
         * we prevent matches with the string of window index 0.
         */

        var strend = s.strstart + MAX_MATCH;
        var scan_end1 = _win[scan + best_len - 1];
        var scan_end = _win[scan + best_len];

        /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
         * It is easy to get rid of this optimization if necessary.
         */
        // Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");

        /* Do not waste too much time if we already have a good match: */
        if (s.prev_length >= s.good_match) {
          chain_length >>= 2;
        }
        /* Do not look for matches beyond the end of the input. This is necessary
         * to make deflate deterministic.
         */
        if (nice_match > s.lookahead) { nice_match = s.lookahead; }

        // Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");

        do {
          // Assert(cur_match < s->strstart, "no future");
          match = cur_match;

          /* Skip to next match if the match length cannot increase
           * or if the match length is less than 2.  Note that the checks below
           * for insufficient lookahead only occur occasionally for performance
           * reasons.  Therefore uninitialized memory will be accessed, and
           * conditional jumps will be made that depend on those values.
           * However the length of the match is limited to the lookahead, so
           * the output of deflate is not affected by the uninitialized values.
           */

          if (_win[match + best_len] !== scan_end ||
            _win[match + best_len - 1] !== scan_end1 ||
            _win[match] !== _win[scan] ||
            _win[++match] !== _win[scan + 1]) {
            continue;
          }

          /* The check at best_len-1 can be removed because it will be made
           * again later. (This heuristic is not always a win.)
           * It is not necessary to compare scan[2] and match[2] since they
           * are always equal when the other bytes match, given that
           * the hash keys are equal and that HASH_BITS >= 8.
           */
          scan += 2;
          match++;
          // Assert(*scan == *match, "match[2]?");

          /* We check for insufficient lookahead only every 8th comparison;
           * the 256th check will be made at strstart+258.
           */
          do {
            /*jshint noempty:false*/
          } while (_win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
          _win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
          _win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
          _win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
            scan < strend);

          // Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");

          len = MAX_MATCH - (strend - scan);
          scan = strend - MAX_MATCH;

          if (len > best_len) {
            s.match_start = cur_match;
            best_len = len;
            if (len >= nice_match) {
              break;
            }
            scan_end1 = _win[scan + best_len - 1];
            scan_end = _win[scan + best_len];
          }
        } while ((cur_match = prev[cur_match & wmask]) > limit && --chain_length !== 0);

        if (best_len <= s.lookahead) {
          return best_len;
        }
        return s.lookahead;
      }


      /* ===========================================================================
       * Fill the window when the lookahead becomes insufficient.
       * Updates strstart and lookahead.
       *
       * IN assertion: lookahead < MIN_LOOKAHEAD
       * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD
       *    At least one byte has been read, or avail_in == 0; reads are
       *    performed for at least two bytes (required for the zip translate_eol
       *    option -- not supported here).
       */
      function fill_window(s) {
        var _w_size = s.w_size;
        var p, n, m, more, str;

        //Assert(s->lookahead < MIN_LOOKAHEAD, "already enough lookahead");

        do {
          more = s.window_size - s.lookahead - s.strstart;

          // JS ints have 32 bit, block below not needed
          /* Deal with !@#$% 64K limit: */
          //if (sizeof(int) <= 2) {
          //    if (more == 0 && s->strstart == 0 && s->lookahead == 0) {
          //        more = wsize;
          //
          //  } else if (more == (unsigned)(-1)) {
          //        /* Very unlikely, but possible on 16 bit machine if
          //         * strstart == 0 && lookahead == 1 (input done a byte at time)
          //         */
          //        more--;
          //    }
          //}


          /* If the window is almost full and there is insufficient lookahead,
           * move the upper half to the lower one to make room in the upper half.
           */
          if (s.strstart >= _w_size + (_w_size - MIN_LOOKAHEAD)) {

            utils.arraySet(s.window, s.window, _w_size, _w_size, 0);
            s.match_start -= _w_size;
            s.strstart -= _w_size;
            /* we now have strstart >= MAX_DIST */
            s.block_start -= _w_size;

            /* Slide the hash table (could be avoided with 32 bit values
             at the expense of memory usage). We slide even when level == 0
             to keep the hash table consistent if we switch back to level > 0
             later. (Using level 0 permanently is not an optimal usage of
             zlib, so we don't care about this pathological case.)
             */

            n = s.hash_size;
            p = n;
            do {
              m = s.head[--p];
              s.head[p] = (m >= _w_size ? m - _w_size : 0);
            } while (--n);

            n = _w_size;
            p = n;
            do {
              m = s.prev[--p];
              s.prev[p] = (m >= _w_size ? m - _w_size : 0);
              /* If n is not on any hash chain, prev[n] is garbage but
               * its value will never be used.
               */
            } while (--n);

            more += _w_size;
          }
          if (s.strm.avail_in === 0) {
            break;
          }

          /* If there was no sliding:
           *    strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 &&
           *    more == window_size - lookahead - strstart
           * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1)
           * => more >= window_size - 2*WSIZE + 2
           * In the BIG_MEM or MMAP case (not yet supported),
           *   window_size == input_size + MIN_LOOKAHEAD  &&
           *   strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD.
           * Otherwise, window_size == 2*WSIZE so more >= 2.
           * If there was sliding, more >= WSIZE. So in all cases, more >= 2.
           */
          //Assert(more >= 2, "more < 2");
          n = read_buf(s.strm, s.window, s.strstart + s.lookahead, more);
          s.lookahead += n;

          /* Initialize the hash value now that we have some input: */
          if (s.lookahead + s.insert >= MIN_MATCH) {
            str = s.strstart - s.insert;
            s.ins_h = s.window[str];

            /* UPDATE_HASH(s, s->ins_h, s->window[str + 1]); */
            s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + 1]) & s.hash_mask;
            //#if MIN_MATCH != 3
            //        Call update_hash() MIN_MATCH-3 more times
            //#endif
            while (s.insert) {
              /* UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]); */
              s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + MIN_MATCH - 1]) & s.hash_mask;

              s.prev[str & s.w_mask] = s.head[s.ins_h];
              s.head[s.ins_h] = str;
              str++;
              s.insert--;
              if (s.lookahead + s.insert < MIN_MATCH) {
                break;
              }
            }
          }
          /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage,
           * but this is not important since only literal bytes will be emitted.
           */

        } while (s.lookahead < MIN_LOOKAHEAD && s.strm.avail_in !== 0);

        /* If the WIN_INIT bytes after the end of the current data have never been
         * written, then zero those bytes in order to avoid memory check reports of
         * the use of uninitialized (or uninitialised as Julian writes) bytes by
         * the longest match routines.  Update the high water mark for the next
         * time through here.  WIN_INIT is set to MAX_MATCH since the longest match
         * routines allow scanning to strstart + MAX_MATCH, ignoring lookahead.
         */
        //  if (s.high_water < s.window_size) {
        //    var curr = s.strstart + s.lookahead;
        //    var init = 0;
        //
        //    if (s.high_water < curr) {
        //      /* Previous high water mark below current data -- zero WIN_INIT
        //       * bytes or up to end of window, whichever is less.
        //       */
        //      init = s.window_size - curr;
        //      if (init > WIN_INIT)
        //        init = WIN_INIT;
        //      zmemzero(s->window + curr, (unsigned)init);
        //      s->high_water = curr + init;
        //    }
        //    else if (s->high_water < (ulg)curr + WIN_INIT) {
        //      /* High water mark at or above current data, but below current data
        //       * plus WIN_INIT -- zero out to current data plus WIN_INIT, or up
        //       * to end of window, whichever is less.
        //       */
        //      init = (ulg)curr + WIN_INIT - s->high_water;
        //      if (init > s->window_size - s->high_water)
        //        init = s->window_size - s->high_water;
        //      zmemzero(s->window + s->high_water, (unsigned)init);
        //      s->high_water += init;
        //    }
        //  }
        //
        //  Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD,
        //    "not enough room for search");
      }

      /* ===========================================================================
       * Copy without compression as much as possible from the input stream, return
       * the current block state.
       * This function does not insert new strings in the dictionary since
       * uncompressible data is probably not useful. This function is used
       * only for the level=0 compression option.
       * NOTE: this function should be optimized to avoid extra copying from
       * window to pending_buf.
       */
      function deflate_stored(s, flush) {
        /* Stored blocks are limited to 0xffff bytes, pending_buf is limited
         * to pending_buf_size, and each stored block has a 5 byte header:
         */
        var max_block_size = 0xffff;

        if (max_block_size > s.pending_buf_size - 5) {
          max_block_size = s.pending_buf_size - 5;
        }

        /* Copy as much as possible from input to output: */
        for (; ;) {
          /* Fill the window as much as possible: */
          if (s.lookahead <= 1) {

            //Assert(s->strstart < s->w_size+MAX_DIST(s) ||
            //  s->block_start >= (long)s->w_size, "slide too late");
            //      if (!(s.strstart < s.w_size + (s.w_size - MIN_LOOKAHEAD) ||
            //        s.block_start >= s.w_size)) {
            //        throw  new Error("slide too late");
            //      }

            fill_window(s);
            if (s.lookahead === 0 && flush === Z_NO_FLUSH) {
              return BS_NEED_MORE;
            }

            if (s.lookahead === 0) {
              break;
            }
            /* flush the current block */
          }
          //Assert(s->block_start >= 0L, "block gone");
          //    if (s.block_start < 0) throw new Error("block gone");

          s.strstart += s.lookahead;
          s.lookahead = 0;

          /* Emit a stored block if pending_buf will be full: */
          var max_start = s.block_start + max_block_size;

          if (s.strstart === 0 || s.strstart >= max_start) {
            /* strstart == 0 is possible when wraparound on 16-bit machine */
            s.lookahead = s.strstart - max_start;
            s.strstart = max_start;
            /*** FLUSH_BLOCK(s, 0); ***/
            flush_block_only(s, false);
            if (s.strm.avail_out === 0) {
              return BS_NEED_MORE;
            }
            /***/


          }
          /* Flush if we may have to slide, otherwise block_start may become
           * negative and the data will be gone:
           */
          if (s.strstart - s.block_start >= (s.w_size - MIN_LOOKAHEAD)) {
            /*** FLUSH_BLOCK(s, 0); ***/
            flush_block_only(s, false);
            if (s.strm.avail_out === 0) {
              return BS_NEED_MORE;
            }
            /***/
          }
        }

        s.insert = 0;

        if (flush === Z_FINISH) {
          /*** FLUSH_BLOCK(s, 1); ***/
          flush_block_only(s, true);
          if (s.strm.avail_out === 0) {
            return BS_FINISH_STARTED;
          }
          /***/
          return BS_FINISH_DONE;
        }

        if (s.strstart > s.block_start) {
          /*** FLUSH_BLOCK(s, 0); ***/
          flush_block_only(s, false);
          if (s.strm.avail_out === 0) {
            return BS_NEED_MORE;
          }
          /***/
        }

        return BS_NEED_MORE;
      }

      /* ===========================================================================
       * Compress as much as possible from the input stream, return the current
       * block state.
       * This function does not perform lazy evaluation of matches and inserts
       * new strings in the dictionary only for unmatched strings or for short
       * matches. It is used only for the fast compression options.
       */
      function deflate_fast(s, flush) {
        var hash_head;        /* head of the hash chain */
        var bflush;           /* set if current block must be flushed */

        for (; ;) {
          /* Make sure that we always have enough lookahead, except
           * at the end of the input file. We need MAX_MATCH bytes
           * for the next match, plus MIN_MATCH bytes to insert the
           * string following the next match.
           */
          if (s.lookahead < MIN_LOOKAHEAD) {
            fill_window(s);
            if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) {
              return BS_NEED_MORE;
            }
            if (s.lookahead === 0) {
              break; /* flush the current block */
            }
          }

          /* Insert the string window[strstart .. strstart+2] in the
           * dictionary, and set hash_head to the head of the hash chain:
           */
          hash_head = 0/*NIL*/;
          if (s.lookahead >= MIN_MATCH) {
            /*** INSERT_STRING(s, s.strstart, hash_head); ***/
            s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
            hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
            s.head[s.ins_h] = s.strstart;
            /***/
          }

          /* Find the longest match, discarding those <= prev_length.
           * At this point we have always match_length < MIN_MATCH
           */
          if (hash_head !== 0/*NIL*/ && ((s.strstart - hash_head) <= (s.w_size - MIN_LOOKAHEAD))) {
            /* To simplify the code, we prevent matches with the string
             * of window index 0 (in particular we have to avoid a match
             * of the string with itself at the start of the input file).
             */
            s.match_length = longest_match(s, hash_head);
            /* longest_match() sets match_start */
          }
          if (s.match_length >= MIN_MATCH) {
            // check_match(s, s.strstart, s.match_start, s.match_length); // for debug only

            /*** _tr_tally_dist(s, s.strstart - s.match_start,
                           s.match_length - MIN_MATCH, bflush); ***/
            bflush = trees._tr_tally(s, s.strstart - s.match_start, s.match_length - MIN_MATCH);

            s.lookahead -= s.match_length;

            /* Insert new strings in the hash table only if the match length
             * is not too large. This saves time but degrades compression.
             */
            if (s.match_length <= s.max_lazy_match/*max_insert_length*/ && s.lookahead >= MIN_MATCH) {
              s.match_length--; /* string at strstart already in table */
              do {
                s.strstart++;
                /*** INSERT_STRING(s, s.strstart, hash_head); ***/
                s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
                hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
                s.head[s.ins_h] = s.strstart;
                /***/
                /* strstart never exceeds WSIZE-MAX_MATCH, so there are
                 * always MIN_MATCH bytes ahead.
                 */
              } while (--s.match_length !== 0);
              s.strstart++;
            } else {
              s.strstart += s.match_length;
              s.match_length = 0;
              s.ins_h = s.window[s.strstart];
              /* UPDATE_HASH(s, s.ins_h, s.window[s.strstart+1]); */
              s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + 1]) & s.hash_mask;

              //#if MIN_MATCH != 3
              //                Call UPDATE_HASH() MIN_MATCH-3 more times
              //#endif
              /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not
               * matter since it will be recomputed at next deflate call.
               */
            }
          } else {
            /* No match, output a literal byte */
            //Tracevv((stderr,"%c", s.window[s.strstart]));
            /*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/
            bflush = trees._tr_tally(s, 0, s.window[s.strstart]);

            s.lookahead--;
            s.strstart++;
          }
          if (bflush) {
            /*** FLUSH_BLOCK(s, 0); ***/
            flush_block_only(s, false);
            if (s.strm.avail_out === 0) {
              return BS_NEED_MORE;
            }
            /***/
          }
        }
        s.insert = ((s.strstart < (MIN_MATCH - 1)) ? s.strstart : MIN_MATCH - 1);
        if (flush === Z_FINISH) {
          /*** FLUSH_BLOCK(s, 1); ***/
          flush_block_only(s, true);
          if (s.strm.avail_out === 0) {
            return BS_FINISH_STARTED;
          }
          /***/
          return BS_FINISH_DONE;
        }
        if (s.last_lit) {
          /*** FLUSH_BLOCK(s, 0); ***/
          flush_block_only(s, false);
          if (s.strm.avail_out === 0) {
            return BS_NEED_MORE;
          }
          /***/
        }
        return BS_BLOCK_DONE;
      }

      /* ===========================================================================
       * Same as above, but achieves better compression. We use a lazy
       * evaluation for matches: a match is finally adopted only if there is
       * no better match at the next window position.
       */
      function deflate_slow(s, flush) {
        var hash_head;          /* head of hash chain */
        var bflush;              /* set if current block must be flushed */

        var max_insert;

        /* Process the input block. */
        for (; ;) {
          /* Make sure that we always have enough lookahead, except
           * at the end of the input file. We need MAX_MATCH bytes
           * for the next match, plus MIN_MATCH bytes to insert the
           * string following the next match.
           */
          if (s.lookahead < MIN_LOOKAHEAD) {
            fill_window(s);
            if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) {
              return BS_NEED_MORE;
            }
            if (s.lookahead === 0) { break; } /* flush the current block */
          }

          /* Insert the string window[strstart .. strstart+2] in the
           * dictionary, and set hash_head to the head of the hash chain:
           */
          hash_head = 0/*NIL*/;
          if (s.lookahead >= MIN_MATCH) {
            /*** INSERT_STRING(s, s.strstart, hash_head); ***/
            s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
            hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
            s.head[s.ins_h] = s.strstart;
            /***/
          }

          /* Find the longest match, discarding those <= prev_length.
           */
          s.prev_length = s.match_length;
          s.prev_match = s.match_start;
          s.match_length = MIN_MATCH - 1;

          if (hash_head !== 0/*NIL*/ && s.prev_length < s.max_lazy_match &&
            s.strstart - hash_head <= (s.w_size - MIN_LOOKAHEAD)/*MAX_DIST(s)*/) {
            /* To simplify the code, we prevent matches with the string
             * of window index 0 (in particular we have to avoid a match
             * of the string with itself at the start of the input file).
             */
            s.match_length = longest_match(s, hash_head);
            /* longest_match() sets match_start */

            if (s.match_length <= 5 &&
              (s.strategy === Z_FILTERED || (s.match_length === MIN_MATCH && s.strstart - s.match_start > 4096/*TOO_FAR*/))) {

              /* If prev_match is also MIN_MATCH, match_start is garbage
               * but we will ignore the current match anyway.
               */
              s.match_length = MIN_MATCH - 1;
            }
          }
          /* If there was a match at the previous step and the current
           * match is not better, output the previous match:
           */
          if (s.prev_length >= MIN_MATCH && s.match_length <= s.prev_length) {
            max_insert = s.strstart + s.lookahead - MIN_MATCH;
            /* Do not insert strings in hash table beyond this. */

            //check_match(s, s.strstart-1, s.prev_match, s.prev_length);

            /***_tr_tally_dist(s, s.strstart - 1 - s.prev_match,
                           s.prev_length - MIN_MATCH, bflush);***/
            bflush = trees._tr_tally(s, s.strstart - 1 - s.prev_match, s.prev_length - MIN_MATCH);
            /* Insert in hash table all strings up to the end of the match.
             * strstart-1 and strstart are already inserted. If there is not
             * enough lookahead, the last two strings are not inserted in
             * the hash table.
             */
            s.lookahead -= s.prev_length - 1;
            s.prev_length -= 2;
            do {
              if (++s.strstart <= max_insert) {
                /*** INSERT_STRING(s, s.strstart, hash_head); ***/
                s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
                hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
                s.head[s.ins_h] = s.strstart;
                /***/
              }
            } while (--s.prev_length !== 0);
            s.match_available = 0;
            s.match_length = MIN_MATCH - 1;
            s.strstart++;

            if (bflush) {
              /*** FLUSH_BLOCK(s, 0); ***/
              flush_block_only(s, false);
              if (s.strm.avail_out === 0) {
                return BS_NEED_MORE;
              }
              /***/
            }

          } else if (s.match_available) {
            /* If there was no match at the previous position, output a
             * single literal. If there was a match but the current match
             * is longer, truncate the previous match to a single literal.
             */
            //Tracevv((stderr,"%c", s->window[s->strstart-1]));
            /*** _tr_tally_lit(s, s.window[s.strstart-1], bflush); ***/
            bflush = trees._tr_tally(s, 0, s.window[s.strstart - 1]);

            if (bflush) {
              /*** FLUSH_BLOCK_ONLY(s, 0) ***/
              flush_block_only(s, false);
              /***/
            }
            s.strstart++;
            s.lookahead--;
            if (s.strm.avail_out === 0) {
              return BS_NEED_MORE;
            }
          } else {
            /* There is no previous match to compare with, wait for
             * the next step to decide.
             */
            s.match_available = 1;
            s.strstart++;
            s.lookahead--;
          }
        }
        //Assert (flush != Z_NO_FLUSH, "no flush?");
        if (s.match_available) {
          //Tracevv((stderr,"%c", s->window[s->strstart-1]));
          /*** _tr_tally_lit(s, s.window[s.strstart-1], bflush); ***/
          bflush = trees._tr_tally(s, 0, s.window[s.strstart - 1]);

          s.match_available = 0;
        }
        s.insert = s.strstart < MIN_MATCH - 1 ? s.strstart : MIN_MATCH - 1;
        if (flush === Z_FINISH) {
          /*** FLUSH_BLOCK(s, 1); ***/
          flush_block_only(s, true);
          if (s.strm.avail_out === 0) {
            return BS_FINISH_STARTED;
          }
          /***/
          return BS_FINISH_DONE;
        }
        if (s.last_lit) {
          /*** FLUSH_BLOCK(s, 0); ***/
          flush_block_only(s, false);
          if (s.strm.avail_out === 0) {
            return BS_NEED_MORE;
          }
          /***/
        }

        return BS_BLOCK_DONE;
      }


      /* ===========================================================================
       * For Z_RLE, simply look for runs of bytes, generate matches only of distance
       * one.  Do not maintain a hash table.  (It will be regenerated if this run of
       * deflate switches away from Z_RLE.)
       */
      function deflate_rle(s, flush) {
        var bflush;            /* set if current block must be flushed */
        var prev;              /* byte at distance one to match */
        var scan, strend;      /* scan goes up to strend for length of run */

        var _win = s.window;

        for (; ;) {
          /* Make sure that we always have enough lookahead, except
           * at the end of the input file. We need MAX_MATCH bytes
           * for the longest run, plus one for the unrolled loop.
           */
          if (s.lookahead <= MAX_MATCH) {
            fill_window(s);
            if (s.lookahead <= MAX_MATCH && flush === Z_NO_FLUSH) {
              return BS_NEED_MORE;
            }
            if (s.lookahead === 0) { break; } /* flush the current block */
          }

          /* See how many times the previous byte repeats */
          s.match_length = 0;
          if (s.lookahead >= MIN_MATCH && s.strstart > 0) {
            scan = s.strstart - 1;
            prev = _win[scan];
            if (prev === _win[++scan] && prev === _win[++scan] && prev === _win[++scan]) 
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