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Posted to commits@fineract.apache.org by ma...@apache.org on 2016/01/28 06:47:20 UTC
[35/51] [partial] incubator-fineract git commit: initial code push
http://git-wip-us.apache.org/repos/asf/incubator-fineract/blob/4b1ec9ef/docs/system-architecture/js/vendor/bootstrap-3.0.0/assets/jszip.js
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+/**
+
+JSZip - A Javascript class for generating and reading zip files
+<http://stuartk.com/jszip>
+
+(c) 2009-2012 Stuart Knightley <stuart [at] stuartk.com>
+Dual licenced under the MIT license or GPLv3. See LICENSE.markdown.
+
+Usage:
+ zip = new JSZip();
+ zip.file("hello.txt", "Hello, World!").file("tempfile", "nothing");
+ zip.folder("images").file("smile.gif", base64Data, {base64: true});
+ zip.file("Xmas.txt", "Ho ho ho !", {date : new Date("December 25, 2007 00:00:01")});
+ zip.remove("tempfile");
+
+ base64zip = zip.generate();
+
+**/
+"use strict";
+
+/**
+ * Representation a of zip file in js
+ * @constructor
+ * @param {String=|ArrayBuffer=|Uint8Array=|Buffer=} data the data to load, if any (optional).
+ * @param {Object=} options the options for creating this objects (optional).
+ */
+var JSZip = function(data, options) {
+ // object containing the files :
+ // {
+ // "folder/" : {...},
+ // "folder/data.txt" : {...}
+ // }
+ this.files = {};
+
+ // Where we are in the hierarchy
+ this.root = "";
+
+ if (data) {
+ this.load(data, options);
+ }
+};
+
+JSZip.signature = {
+ LOCAL_FILE_HEADER : "\x50\x4b\x03\x04",
+ CENTRAL_FILE_HEADER : "\x50\x4b\x01\x02",
+ CENTRAL_DIRECTORY_END : "\x50\x4b\x05\x06",
+ ZIP64_CENTRAL_DIRECTORY_LOCATOR : "\x50\x4b\x06\x07",
+ ZIP64_CENTRAL_DIRECTORY_END : "\x50\x4b\x06\x06",
+ DATA_DESCRIPTOR : "\x50\x4b\x07\x08"
+};
+
+// Default properties for a new file
+JSZip.defaults = {
+ base64: false,
+ binary: false,
+ dir: false,
+ date: null,
+ compression: null
+};
+
+
+JSZip.prototype = (function () {
+
+ /**
+ * Returns the raw data of a ZipObject, decompress the content if necessary.
+ * @param {ZipObject} file the file to use.
+ * @return {String|ArrayBuffer|Uint8Array|Buffer} the data.
+ */
+ var getRawData = function (file) {
+ if (file._data instanceof JSZip.CompressedObject) {
+ file._data = file._data.getContent();
+ file.options.binary = true;
+ file.options.base64 = false;
+
+ if (JSZip.utils.getTypeOf(file._data) === "uint8array") {
+ var copy = file._data;
+ // when reading an arraybuffer, the CompressedObject mechanism will keep it and subarray() a Uint8Array.
+ // if we request a file in the same format, we might get the same Uint8Array or its ArrayBuffer (the original zip file).
+ file._data = new Uint8Array(copy.length);
+ // with an empty Uint8Array, Opera fails with a "Offset larger than array size"
+ if (copy.length !== 0) {
+ file._data.set(copy, 0);
+ }
+ }
+ }
+ return file._data;
+ };
+
+ /**
+ * Returns the data of a ZipObject in a binary form. If the content is an unicode string, encode it.
+ * @param {ZipObject} file the file to use.
+ * @return {String|ArrayBuffer|Uint8Array|Buffer} the data.
+ */
+ var getBinaryData = function (file) {
+ var result = getRawData(file), type = JSZip.utils.getTypeOf(result);
+ if (type === "string") {
+ if (!file.options.binary) {
+ // unicode text !
+ // unicode string => binary string is a painful process, check if we can avoid it.
+ if (JSZip.support.uint8array && typeof TextEncoder === "function") {
+ return TextEncoder("utf-8").encode(result);
+ }
+ if (JSZip.support.nodebuffer) {
+ return new Buffer(result, "utf-8");
+ }
+ }
+ return file.asBinary();
+ }
+ return result;
+ }
+
+ /**
+ * Transform this._data into a string.
+ * @param {function} filter a function String -> String, applied if not null on the result.
+ * @return {String} the string representing this._data.
+ */
+ var dataToString = function (asUTF8) {
+ var result = getRawData(this);
+ if (result === null || typeof result === "undefined") {
+ return "";
+ }
+ // if the data is a base64 string, we decode it before checking the encoding !
+ if (this.options.base64) {
+ result = JSZip.base64.decode(result);
+ }
+ if (asUTF8 && this.options.binary) {
+ // JSZip.prototype.utf8decode supports arrays as input
+ // skip to array => string step, utf8decode will do it.
+ result = JSZip.prototype.utf8decode(result);
+ } else {
+ // no utf8 transformation, do the array => string step.
+ result = JSZip.utils.transformTo("string", result);
+ }
+
+ if (!asUTF8 && !this.options.binary) {
+ result = JSZip.prototype.utf8encode(result);
+ }
+ return result;
+ };
+ /**
+ * A simple object representing a file in the zip file.
+ * @constructor
+ * @param {string} name the name of the file
+ * @param {String|ArrayBuffer|Uint8Array|Buffer} data the data
+ * @param {Object} options the options of the file
+ */
+ var ZipObject = function (name, data, options) {
+ this.name = name;
+ this._data = data;
+ this.options = options;
+ };
+
+ ZipObject.prototype = {
+ /**
+ * Return the content as UTF8 string.
+ * @return {string} the UTF8 string.
+ */
+ asText : function () {
+ return dataToString.call(this, true);
+ },
+ /**
+ * Returns the binary content.
+ * @return {string} the content as binary.
+ */
+ asBinary : function () {
+ return dataToString.call(this, false);
+ },
+ /**
+ * Returns the content as a nodejs Buffer.
+ * @return {Buffer} the content as a Buffer.
+ */
+ asNodeBuffer : function () {
+ var result = getBinaryData(this);
+ return JSZip.utils.transformTo("nodebuffer", result);
+ },
+ /**
+ * Returns the content as an Uint8Array.
+ * @return {Uint8Array} the content as an Uint8Array.
+ */
+ asUint8Array : function () {
+ var result = getBinaryData(this);
+ return JSZip.utils.transformTo("uint8array", result);
+ },
+ /**
+ * Returns the content as an ArrayBuffer.
+ * @return {ArrayBuffer} the content as an ArrayBufer.
+ */
+ asArrayBuffer : function () {
+ return this.asUint8Array().buffer;
+ }
+ };
+
+ /**
+ * Transform an integer into a string in hexadecimal.
+ * @private
+ * @param {number} dec the number to convert.
+ * @param {number} bytes the number of bytes to generate.
+ * @returns {string} the result.
+ */
+ var decToHex = function(dec, bytes) {
+ var hex = "", i;
+ for(i = 0; i < bytes; i++) {
+ hex += String.fromCharCode(dec&0xff);
+ dec=dec>>>8;
+ }
+ return hex;
+ };
+
+ /**
+ * Merge the objects passed as parameters into a new one.
+ * @private
+ * @param {...Object} var_args All objects to merge.
+ * @return {Object} a new object with the data of the others.
+ */
+ var extend = function () {
+ var result = {}, i, attr;
+ for (i = 0; i < arguments.length; i++) { // arguments is not enumerable in some browsers
+ for (attr in arguments[i]) {
+ if (arguments[i].hasOwnProperty(attr) && typeof result[attr] === "undefined") {
+ result[attr] = arguments[i][attr];
+ }
+ }
+ }
+ return result;
+ };
+
+ /**
+ * Transforms the (incomplete) options from the user into the complete
+ * set of options to create a file.
+ * @private
+ * @param {Object} o the options from the user.
+ * @return {Object} the complete set of options.
+ */
+ var prepareFileAttrs = function (o) {
+ o = o || {};
+ if (o.base64 === true && o.binary == null) {
+ o.binary = true;
+ }
+ o = extend(o, JSZip.defaults);
+ o.date = o.date || new Date();
+ if (o.compression !== null) o.compression = o.compression.toUpperCase();
+
+ return o;
+ };
+
+ /**
+ * Add a file in the current folder.
+ * @private
+ * @param {string} name the name of the file
+ * @param {String|ArrayBuffer|Uint8Array|Buffer} data the data of the file
+ * @param {Object} o the options of the file
+ * @return {Object} the new file.
+ */
+ var fileAdd = function (name, data, o) {
+ // be sure sub folders exist
+ var parent = parentFolder(name), dataType = JSZip.utils.getTypeOf(data);
+ if (parent) {
+ folderAdd.call(this, parent);
+ }
+
+ o = prepareFileAttrs(o);
+
+ if (o.dir || data === null || typeof data === "undefined") {
+ o.base64 = false;
+ o.binary = false;
+ data = null;
+ } else if (dataType === "string") {
+ if (o.binary && !o.base64) {
+ // optimizedBinaryString == true means that the file has already been filtered with a 0xFF mask
+ if (o.optimizedBinaryString !== true) {
+ // this is a string, not in a base64 format.
+ // Be sure that this is a correct "binary string"
+ data = JSZip.utils.string2binary(data);
+ }
+ }
+ } else { // arraybuffer, uint8array, ...
+ o.base64 = false;
+ o.binary = true;
+
+ if (!dataType && !(data instanceof JSZip.CompressedObject)) {
+ throw new Error("The data of '" + name + "' is in an unsupported format !");
+ }
+
+ // special case : it's way easier to work with Uint8Array than with ArrayBuffer
+ if (dataType === "arraybuffer") {
+ data = JSZip.utils.transformTo("uint8array", data);
+ }
+ }
+
+ return this.files[name] = new ZipObject(name, data, o);
+ };
+
+
+ /**
+ * Find the parent folder of the path.
+ * @private
+ * @param {string} path the path to use
+ * @return {string} the parent folder, or ""
+ */
+ var parentFolder = function (path) {
+ if (path.slice(-1) == '/') {
+ path = path.substring(0, path.length - 1);
+ }
+ var lastSlash = path.lastIndexOf('/');
+ return (lastSlash > 0) ? path.substring(0, lastSlash) : "";
+ };
+
+ /**
+ * Add a (sub) folder in the current folder.
+ * @private
+ * @param {string} name the folder's name
+ * @return {Object} the new folder.
+ */
+ var folderAdd = function (name) {
+ // Check the name ends with a /
+ if (name.slice(-1) != "/") {
+ name += "/"; // IE doesn't like substr(-1)
+ }
+
+ // Does this folder already exist?
+ if (!this.files[name]) {
+ fileAdd.call(this, name, null, {dir:true});
+ }
+ return this.files[name];
+ };
+
+ /**
+ * Generate a JSZip.CompressedObject for a given zipOject.
+ * @param {ZipObject} file the object to read.
+ * @param {JSZip.compression} compression the compression to use.
+ * @return {JSZip.CompressedObject} the compressed result.
+ */
+ var generateCompressedObjectFrom = function (file, compression) {
+ var result = new JSZip.CompressedObject(), content;
+
+ // the data has not been decompressed, we might reuse things !
+ if (file._data instanceof JSZip.CompressedObject) {
+ result.uncompressedSize = file._data.uncompressedSize;
+ result.crc32 = file._data.crc32;
+
+ if (result.uncompressedSize === 0 || file.options.dir) {
+ compression = JSZip.compressions['STORE'];
+ result.compressedContent = "";
+ result.crc32 = 0;
+ } else if (file._data.compressionMethod === compression.magic) {
+ result.compressedContent = file._data.getCompressedContent();
+ } else {
+ content = file._data.getContent()
+ // need to decompress / recompress
+ result.compressedContent = compression.compress(JSZip.utils.transformTo(compression.compressInputType, content));
+ }
+ } else {
+ // have uncompressed data
+ content = getBinaryData(file);
+ if (!content || content.length === 0 || file.options.dir) {
+ compression = JSZip.compressions['STORE'];
+ content = "";
+ }
+ result.uncompressedSize = content.length;
+ result.crc32 = this.crc32(content);
+ result.compressedContent = compression.compress(JSZip.utils.transformTo(compression.compressInputType, content));
+ }
+
+ result.compressedSize = result.compressedContent.length;
+ result.compressionMethod = compression.magic;
+
+ return result;
+ };
+
+ /**
+ * Generate the various parts used in the construction of the final zip file.
+ * @param {string} name the file name.
+ * @param {ZipObject} file the file content.
+ * @param {JSZip.CompressedObject} compressedObject the compressed object.
+ * @param {number} offset the current offset from the start of the zip file.
+ * @return {object} the zip parts.
+ */
+ var generateZipParts = function(name, file, compressedObject, offset) {
+ var data = compressedObject.compressedContent,
+ utfEncodedFileName = this.utf8encode(file.name),
+ useUTF8 = utfEncodedFileName !== file.name,
+ o = file.options,
+ dosTime,
+ dosDate;
+
+ // date
+ // @see http://www.delorie.com/djgpp/doc/rbinter/it/52/13.html
+ // @see http://www.delorie.com/djgpp/doc/rbinter/it/65/16.html
+ // @see http://www.delorie.com/djgpp/doc/rbinter/it/66/16.html
+
+ dosTime = o.date.getHours();
+ dosTime = dosTime << 6;
+ dosTime = dosTime | o.date.getMinutes();
+ dosTime = dosTime << 5;
+ dosTime = dosTime | o.date.getSeconds() / 2;
+
+ dosDate = o.date.getFullYear() - 1980;
+ dosDate = dosDate << 4;
+ dosDate = dosDate | (o.date.getMonth() + 1);
+ dosDate = dosDate << 5;
+ dosDate = dosDate | o.date.getDate();
+
+
+ var header = "";
+
+ // version needed to extract
+ header += "\x0A\x00";
+ // general purpose bit flag
+ // set bit 11 if utf8
+ header += useUTF8 ? "\x00\x08" : "\x00\x00";
+ // compression method
+ header += compressedObject.compressionMethod;
+ // last mod file time
+ header += decToHex(dosTime, 2);
+ // last mod file date
+ header += decToHex(dosDate, 2);
+ // crc-32
+ header += decToHex(compressedObject.crc32, 4);
+ // compressed size
+ header += decToHex(compressedObject.compressedSize, 4);
+ // uncompressed size
+ header += decToHex(compressedObject.uncompressedSize, 4);
+ // file name length
+ header += decToHex(utfEncodedFileName.length, 2);
+ // extra field length
+ header += "\x00\x00";
+
+
+ var fileRecord = JSZip.signature.LOCAL_FILE_HEADER + header + utfEncodedFileName;
+
+ var dirRecord = JSZip.signature.CENTRAL_FILE_HEADER +
+ // version made by (00: DOS)
+ "\x14\x00" +
+ // file header (common to file and central directory)
+ header +
+ // file comment length
+ "\x00\x00" +
+ // disk number start
+ "\x00\x00" +
+ // internal file attributes TODO
+ "\x00\x00" +
+ // external file attributes
+ (file.options.dir===true?"\x10\x00\x00\x00":"\x00\x00\x00\x00")+
+ // relative offset of local header
+ decToHex(offset, 4) +
+ // file name
+ utfEncodedFileName;
+
+
+ return {
+ fileRecord : fileRecord,
+ dirRecord : dirRecord,
+ compressedObject : compressedObject
+ };
+ };
+
+ /**
+ * An object to write any content to a string.
+ * @constructor
+ */
+ var StringWriter = function () {
+ this.data = [];
+ };
+ StringWriter.prototype = {
+ /**
+ * Append any content to the current string.
+ * @param {Object} input the content to add.
+ */
+ append : function (input) {
+ input = JSZip.utils.transformTo("string", input);
+ this.data.push(input);
+ },
+ /**
+ * Finalize the construction an return the result.
+ * @return {string} the generated string.
+ */
+ finalize : function () {
+ return this.data.join("");
+ }
+ };
+ /**
+ * An object to write any content to an Uint8Array.
+ * @constructor
+ * @param {number} length The length of the array.
+ */
+ var Uint8ArrayWriter = function (length) {
+ this.data = new Uint8Array(length);
+ this.index = 0;
+ };
+ Uint8ArrayWriter.prototype = {
+ /**
+ * Append any content to the current array.
+ * @param {Object} input the content to add.
+ */
+ append : function (input) {
+ if (input.length !== 0) {
+ // with an empty Uint8Array, Opera fails with a "Offset larger than array size"
+ input = JSZip.utils.transformTo("uint8array", input);
+ this.data.set(input, this.index);
+ this.index += input.length;
+ }
+ },
+ /**
+ * Finalize the construction an return the result.
+ * @return {Uint8Array} the generated array.
+ */
+ finalize : function () {
+ return this.data;
+ }
+ };
+
+ // return the actual prototype of JSZip
+ return {
+ /**
+ * Read an existing zip and merge the data in the current JSZip object.
+ * The implementation is in jszip-load.js, don't forget to include it.
+ * @param {String|ArrayBuffer|Uint8Array|Buffer} stream The stream to load
+ * @param {Object} options Options for loading the stream.
+ * options.base64 : is the stream in base64 ? default : false
+ * @return {JSZip} the current JSZip object
+ */
+ load : function (stream, options) {
+ throw new Error("Load method is not defined. Is the file jszip-load.js included ?");
+ },
+
+ /**
+ * Filter nested files/folders with the specified function.
+ * @param {Function} search the predicate to use :
+ * function (relativePath, file) {...}
+ * It takes 2 arguments : the relative path and the file.
+ * @return {Array} An array of matching elements.
+ */
+ filter : function (search) {
+ var result = [], filename, relativePath, file, fileClone;
+ for (filename in this.files) {
+ if ( !this.files.hasOwnProperty(filename) ) { continue; }
+ file = this.files[filename];
+ // return a new object, don't let the user mess with our internal objects :)
+ fileClone = new ZipObject(file.name, file._data, extend(file.options));
+ relativePath = filename.slice(this.root.length, filename.length);
+ if (filename.slice(0, this.root.length) === this.root && // the file is in the current root
+ search(relativePath, fileClone)) { // and the file matches the function
+ result.push(fileClone);
+ }
+ }
+ return result;
+ },
+
+ /**
+ * Add a file to the zip file, or search a file.
+ * @param {string|RegExp} name The name of the file to add (if data is defined),
+ * the name of the file to find (if no data) or a regex to match files.
+ * @param {String|ArrayBuffer|Uint8Array|Buffer} data The file data, either raw or base64 encoded
+ * @param {Object} o File options
+ * @return {JSZip|Object|Array} this JSZip object (when adding a file),
+ * a file (when searching by string) or an array of files (when searching by regex).
+ */
+ file : function(name, data, o) {
+ if (arguments.length === 1) {
+ if (name instanceof RegExp) {
+ var regexp = name;
+ return this.filter(function(relativePath, file) {
+ return !file.options.dir && regexp.test(relativePath);
+ });
+ } else { // text
+ return this.filter(function (relativePath, file) {
+ return !file.options.dir && relativePath === name;
+ })[0]||null;
+ }
+ } else { // more than one argument : we have data !
+ name = this.root+name;
+ fileAdd.call(this, name, data, o);
+ }
+ return this;
+ },
+
+ /**
+ * Add a directory to the zip file, or search.
+ * @param {String|RegExp} arg The name of the directory to add, or a regex to search folders.
+ * @return {JSZip} an object with the new directory as the root, or an array containing matching folders.
+ */
+ folder : function(arg) {
+ if (!arg) {
+ return this;
+ }
+
+ if (arg instanceof RegExp) {
+ return this.filter(function(relativePath, file) {
+ return file.options.dir && arg.test(relativePath);
+ });
+ }
+
+ // else, name is a new folder
+ var name = this.root + arg;
+ var newFolder = folderAdd.call(this, name);
+
+ // Allow chaining by returning a new object with this folder as the root
+ var ret = this.clone();
+ ret.root = newFolder.name;
+ return ret;
+ },
+
+ /**
+ * Delete a file, or a directory and all sub-files, from the zip
+ * @param {string} name the name of the file to delete
+ * @return {JSZip} this JSZip object
+ */
+ remove : function(name) {
+ name = this.root + name;
+ var file = this.files[name];
+ if (!file) {
+ // Look for any folders
+ if (name.slice(-1) != "/") {
+ name += "/";
+ }
+ file = this.files[name];
+ }
+
+ if (file) {
+ if (!file.options.dir) {
+ // file
+ delete this.files[name];
+ } else {
+ // folder
+ var kids = this.filter(function (relativePath, file) {
+ return file.name.slice(0, name.length) === name;
+ });
+ for (var i = 0; i < kids.length; i++) {
+ delete this.files[kids[i].name];
+ }
+ }
+ }
+
+ return this;
+ },
+
+ /**
+ * Generate the complete zip file
+ * @param {Object} options the options to generate the zip file :
+ * - base64, (deprecated, use type instead) true to generate base64.
+ * - compression, "STORE" by default.
+ * - type, "base64" by default. Values are : string, base64, uint8array, arraybuffer, blob.
+ * @return {String|Uint8Array|ArrayBuffer|Buffer|Blob} the zip file
+ */
+ generate : function(options) {
+ options = extend(options || {}, {
+ base64 : true,
+ compression : "STORE",
+ type : "base64"
+ });
+
+ JSZip.utils.checkSupport(options.type);
+
+ var zipData = [], localDirLength = 0, centralDirLength = 0, writer, i;
+
+
+ // first, generate all the zip parts.
+ for (var name in this.files) {
+ if ( !this.files.hasOwnProperty(name) ) { continue; }
+ var file = this.files[name];
+
+ var compressionName = file.compression || options.compression.toUpperCase();
+ var compression = JSZip.compressions[compressionName];
+ if (!compression) {
+ throw new Error(compressionName + " is not a valid compression method !");
+ }
+
+ var compressedObject = generateCompressedObjectFrom.call(this, file, compression);
+
+ var zipPart = generateZipParts.call(this, name, file, compressedObject, localDirLength);
+ localDirLength += zipPart.fileRecord.length + compressedObject.compressedSize;
+ centralDirLength += zipPart.dirRecord.length;
+ zipData.push(zipPart);
+ }
+
+ var dirEnd = "";
+
+ // end of central dir signature
+ dirEnd = JSZip.signature.CENTRAL_DIRECTORY_END +
+ // number of this disk
+ "\x00\x00" +
+ // number of the disk with the start of the central directory
+ "\x00\x00" +
+ // total number of entries in the central directory on this disk
+ decToHex(zipData.length, 2) +
+ // total number of entries in the central directory
+ decToHex(zipData.length, 2) +
+ // size of the central directory 4 bytes
+ decToHex(centralDirLength, 4) +
+ // offset of start of central directory with respect to the starting disk number
+ decToHex(localDirLength, 4) +
+ // .ZIP file comment length
+ "\x00\x00";
+
+
+ // we have all the parts (and the total length)
+ // time to create a writer !
+ switch(options.type.toLowerCase()) {
+ case "uint8array" :
+ case "arraybuffer" :
+ case "blob" :
+ case "nodebuffer" :
+ writer = new Uint8ArrayWriter(localDirLength + centralDirLength + dirEnd.length);
+ break;
+ case "base64" :
+ default : // case "string" :
+ writer = new StringWriter(localDirLength + centralDirLength + dirEnd.length);
+ break;
+ }
+
+ for (i = 0; i < zipData.length; i++) {
+ writer.append(zipData[i].fileRecord);
+ writer.append(zipData[i].compressedObject.compressedContent);
+ }
+ for (i = 0; i < zipData.length; i++) {
+ writer.append(zipData[i].dirRecord);
+ }
+
+ writer.append(dirEnd);
+
+ var zip = writer.finalize();
+
+
+
+ switch(options.type.toLowerCase()) {
+ // case "zip is an Uint8Array"
+ case "uint8array" :
+ case "arraybuffer" :
+ case "nodebuffer" :
+ return JSZip.utils.transformTo(options.type.toLowerCase(), zip);
+ case "blob" :
+ return JSZip.utils.arrayBuffer2Blob(JSZip.utils.transformTo("arraybuffer", zip));
+
+ // case "zip is a string"
+ case "base64" :
+ return (options.base64) ? JSZip.base64.encode(zip) : zip;
+ default : // case "string" :
+ return zip;
+ }
+ },
+
+ /**
+ *
+ * Javascript crc32
+ * http://www.webtoolkit.info/
+ *
+ */
+ crc32 : function crc32(input, crc) {
+ if (typeof input === "undefined" || !input.length) {
+ return 0;
+ }
+
+ var isArray = JSZip.utils.getTypeOf(input) !== "string";
+
+ var table = [
+ 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
+ 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
+ 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
+ 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
+ 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
+ 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
+ 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
+ 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
+ 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
+ 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
+ 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
+ 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
+ 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
+ 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
+ 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
+ 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
+ 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
+ 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
+ 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
+ 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
+ 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
+ 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
+ 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
+ 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
+ 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
+ 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
+ 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
+ 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
+ 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
+ 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
+ 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
+ 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
+ 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
+ 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
+ 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
+ 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
+ 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
+ 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
+ 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
+ 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
+ 0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
+ 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
+ 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
+ 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
+ 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
+ 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
+ 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
+ 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
+ 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
+ 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
+ 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
+ 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
+ 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
+ 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
+ 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
+ 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
+ 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
+ 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
+ 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
+ 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
+ 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
+ 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
+ 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
+ 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
+ ];
+
+ if (typeof(crc) == "undefined") { crc = 0; }
+ var x = 0;
+ var y = 0;
+ var byte = 0;
+
+ crc = crc ^ (-1);
+ for( var i = 0, iTop = input.length; i < iTop; i++ ) {
+ byte = isArray ? input[i] : input.charCodeAt(i);
+ y = ( crc ^ byte ) & 0xFF;
+ x = table[y];
+ crc = ( crc >>> 8 ) ^ x;
+ }
+
+ return crc ^ (-1);
+ },
+
+ // Inspired by http://my.opera.com/GreyWyvern/blog/show.dml/1725165
+ clone : function() {
+ var newObj = new JSZip();
+ for (var i in this) {
+ if (typeof this[i] !== "function") {
+ newObj[i] = this[i];
+ }
+ }
+ return newObj;
+ },
+
+
+ /**
+ * http://www.webtoolkit.info/javascript-utf8.html
+ */
+ utf8encode : function (string) {
+ // TextEncoder + Uint8Array to binary string is faster than checking every bytes on long strings.
+ // http://jsperf.com/utf8encode-vs-textencoder
+ // On short strings (file names for example), the TextEncoder API is (currently) slower.
+ if (JSZip.support.uint8array && typeof TextEncoder === "function") {
+ var u8 = TextEncoder("utf-8").encode(string);
+ return JSZip.utils.transformTo("string", u8);
+ }
+ if (JSZip.support.nodebuffer) {
+ return JSZip.utils.transformTo("string", new Buffer(string, "utf-8"));
+ }
+
+ // array.join may be slower than string concatenation but generates less objects (less time spent garbage collecting).
+ // See also http://jsperf.com/array-direct-assignment-vs-push/31
+ var result = [], resIndex = 0;
+
+ for (var n = 0; n < string.length; n++) {
+
+ var c = string.charCodeAt(n);
+
+ if (c < 128) {
+ result[resIndex++] = String.fromCharCode(c);
+ } else if ((c > 127) && (c < 2048)) {
+ result[resIndex++] = String.fromCharCode((c >> 6) | 192);
+ result[resIndex++] = String.fromCharCode((c & 63) | 128);
+ } else {
+ result[resIndex++] = String.fromCharCode((c >> 12) | 224);
+ result[resIndex++] = String.fromCharCode(((c >> 6) & 63) | 128);
+ result[resIndex++] = String.fromCharCode((c & 63) | 128);
+ }
+
+ }
+
+ return result.join("");
+ },
+
+ /**
+ * http://www.webtoolkit.info/javascript-utf8.html
+ */
+ utf8decode : function (input) {
+ var result = [], resIndex = 0;
+ var type = JSZip.utils.getTypeOf(input);
+ var isArray = type !== "string";
+ var i = 0;
+ var c = 0, c1 = 0, c2 = 0, c3 = 0;
+
+ // check if we can use the TextDecoder API
+ // see http://encoding.spec.whatwg.org/#api
+ if (JSZip.support.uint8array && typeof TextDecoder === "function") {
+ return TextDecoder("utf-8").decode(
+ JSZip.utils.transformTo("uint8array", input)
+ );
+ }
+ if (JSZip.support.nodebuffer) {
+ return JSZip.utils.transformTo("nodebuffer", input).toString("utf-8");
+ }
+
+ while ( i < input.length ) {
+
+ c = isArray ? input[i] : input.charCodeAt(i);
+
+ if (c < 128) {
+ result[resIndex++] = String.fromCharCode(c);
+ i++;
+ } else if ((c > 191) && (c < 224)) {
+ c2 = isArray ? input[i+1] : input.charCodeAt(i+1);
+ result[resIndex++] = String.fromCharCode(((c & 31) << 6) | (c2 & 63));
+ i += 2;
+ } else {
+ c2 = isArray ? input[i+1] : input.charCodeAt(i+1);
+ c3 = isArray ? input[i+2] : input.charCodeAt(i+2);
+ result[resIndex++] = String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
+ i += 3;
+ }
+
+ }
+
+ return result.join("");
+ }
+ };
+}());
+
+/*
+ * Compression methods
+ * This object is filled in as follow :
+ * name : {
+ * magic // the 2 bytes indentifying the compression method
+ * compress // function, take the uncompressed content and return it compressed.
+ * uncompress // function, take the compressed content and return it uncompressed.
+ * compressInputType // string, the type accepted by the compress method. null to accept everything.
+ * uncompressInputType // string, the type accepted by the uncompress method. null to accept everything.
+ * }
+ *
+ * STORE is the default compression method, so it's included in this file.
+ * Other methods should go to separated files : the user wants modularity.
+ */
+JSZip.compressions = {
+ "STORE" : {
+ magic : "\x00\x00",
+ compress : function (content) {
+ return content; // no compression
+ },
+ uncompress : function (content) {
+ return content; // no compression
+ },
+ compressInputType : null,
+ uncompressInputType : null
+ }
+};
+
+/*
+ * List features that require a modern browser, and if the current browser support them.
+ */
+JSZip.support = {
+ // contains true if JSZip can read/generate ArrayBuffer, false otherwise.
+ arraybuffer : (function(){
+ return typeof ArrayBuffer !== "undefined" && typeof Uint8Array !== "undefined";
+ })(),
+ // contains true if JSZip can read/generate nodejs Buffer, false otherwise.
+ nodebuffer : (function(){
+ return typeof Buffer !== "undefined";
+ })(),
+ // contains true if JSZip can read/generate Uint8Array, false otherwise.
+ uint8array : (function(){
+ return typeof Uint8Array !== "undefined";
+ })(),
+ // contains true if JSZip can read/generate Blob, false otherwise.
+ blob : (function(){
+ // the spec started with BlobBuilder then replaced it with a construtor for Blob.
+ // Result : we have browsers that :
+ // * know the BlobBuilder (but with prefix)
+ // * know the Blob constructor
+ // * know about Blob but not about how to build them
+ // About the "=== 0" test : if given the wrong type, it may be converted to a string.
+ // Instead of an empty content, we will get "[object Uint8Array]" for example.
+ if (typeof ArrayBuffer === "undefined") {
+ return false;
+ }
+ var buffer = new ArrayBuffer(0);
+ try {
+ return new Blob([buffer], { type: "application/zip" }).size === 0;
+ }
+ catch(e) {}
+
+ try {
+ var builder = new (window.BlobBuilder || window.WebKitBlobBuilder ||
+ window.MozBlobBuilder || window.MSBlobBuilder)();
+ builder.append(buffer);
+ return builder.getBlob('application/zip').size === 0;
+ }
+ catch(e) {}
+
+ return false;
+ })()
+};
+
+(function () {
+ JSZip.utils = {
+ /**
+ * Convert a string to a "binary string" : a string containing only char codes between 0 and 255.
+ * @param {string} str the string to transform.
+ * @return {String} the binary string.
+ */
+ string2binary : function (str) {
+ var result = "";
+ for (var i = 0; i < str.length; i++) {
+ result += String.fromCharCode(str.charCodeAt(i) & 0xff);
+ }
+ return result;
+ },
+ /**
+ * Create a Uint8Array from the string.
+ * @param {string} str the string to transform.
+ * @return {Uint8Array} the typed array.
+ * @throws {Error} an Error if the browser doesn't support the requested feature.
+ * @deprecated : use JSZip.utils.transformTo instead.
+ */
+ string2Uint8Array : function (str) {
+ return JSZip.utils.transformTo("uint8array", str);
+ },
+
+ /**
+ * Create a string from the Uint8Array.
+ * @param {Uint8Array} array the array to transform.
+ * @return {string} the string.
+ * @throws {Error} an Error if the browser doesn't support the requested feature.
+ * @deprecated : use JSZip.utils.transformTo instead.
+ */
+ uint8Array2String : function (array) {
+ return JSZip.utils.transformTo("string", array);
+ },
+ /**
+ * Create a blob from the given ArrayBuffer.
+ * @param {ArrayBuffer} buffer the buffer to transform.
+ * @return {Blob} the result.
+ * @throws {Error} an Error if the browser doesn't support the requested feature.
+ */
+ arrayBuffer2Blob : function (buffer) {
+ JSZip.utils.checkSupport("blob");
+
+ try {
+ // Blob constructor
+ return new Blob([buffer], { type: "application/zip" });
+ }
+ catch(e) {}
+
+ try {
+ // deprecated, browser only, old way
+ var builder = new (window.BlobBuilder || window.WebKitBlobBuilder ||
+ window.MozBlobBuilder || window.MSBlobBuilder)();
+ builder.append(buffer);
+ return builder.getBlob('application/zip');
+ }
+ catch(e) {}
+
+ // well, fuck ?!
+ throw new Error("Bug : can't construct the Blob.");
+ },
+ /**
+ * Create a blob from the given string.
+ * @param {string} str the string to transform.
+ * @return {Blob} the result.
+ * @throws {Error} an Error if the browser doesn't support the requested feature.
+ */
+ string2Blob : function (str) {
+ var buffer = JSZip.utils.transformTo("arraybuffer", str);
+ return JSZip.utils.arrayBuffer2Blob(buffer);
+ }
+ };
+
+ /**
+ * The identity function.
+ * @param {Object} input the input.
+ * @return {Object} the same input.
+ */
+ function identity(input) {
+ return input;
+ };
+
+ /**
+ * Fill in an array with a string.
+ * @param {String} str the string to use.
+ * @param {Array|ArrayBuffer|Uint8Array|Buffer} array the array to fill in (will be mutated).
+ * @return {Array|ArrayBuffer|Uint8Array|Buffer} the updated array.
+ */
+ function stringToArrayLike(str, array) {
+ for (var i = 0; i < str.length; ++i) {
+ array[i] = str.charCodeAt(i) & 0xFF;
+ }
+ return array;
+ };
+
+ /**
+ * Transform an array-like object to a string.
+ * @param {Array|ArrayBuffer|Uint8Array|Buffer} array the array to transform.
+ * @return {String} the result.
+ */
+ function arrayLikeToString(array) {
+ // Performances notes :
+ // --------------------
+ // String.fromCharCode.apply(null, array) is the fastest, see
+ // see http://jsperf.com/converting-a-uint8array-to-a-string/2
+ // but the stack is limited (and we can get huge arrays !).
+ //
+ // result += String.fromCharCode(array[i]); generate too many strings !
+ //
+ // This code is inspired by http://jsperf.com/arraybuffer-to-string-apply-performance/2
+ var chunk = 65536;
+ var result = [], len = array.length, type = JSZip.utils.getTypeOf(array), k = 0;
+
+ while (k < len && chunk > 1) {
+ try {
+ if (type === "array" || type === "nodebuffer") {
+ result.push(String.fromCharCode.apply(null, array.slice(k, Math.max(k + chunk, len))));
+ } else {
+ result.push(String.fromCharCode.apply(null, array.subarray(k, k + chunk)));
+ }
+ k += chunk;
+ } catch (e) {
+ chunk = Math.floor(chunk / 2);
+ }
+ }
+ return result.join("");
+ };
+
+ /**
+ * 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, new Buffer(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 new Buffer(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 new Buffer(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 new Buffer(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.
+ */
+ JSZip.utils.transformTo = function (outputType, input) {
+ if (!input) {
+ // undefined, null, etc
+ // an empty string won't harm.
+ input = "";
+ }
+ if (!outputType) {
+ return input;
+ }
+ JSZip.utils.checkSupport(outputType);
+ var inputType = JSZip.utils.getTypeOf(input);
+ var result = transform[inputType][outputType](input);
+ return result;
+ };
+
+ /**
+ * Return the type of the input.
+ * The type will be in a format valid for JSZip.utils.transformTo : string, array, uint8array, arraybuffer.
+ * @param {Object} input the input to identify.
+ * @return {String} the (lowercase) type of the input.
+ */
+ JSZip.utils.getTypeOf = function (input) {
+ if (typeof input === "string") {
+ return "string";
+ }
+ if (input instanceof Array) {
+ return "array";
+ }
+ if (JSZip.support.nodebuffer && Buffer.isBuffer(input)) {
+ return "nodebuffer";
+ }
+ if (JSZip.support.uint8array && input instanceof Uint8Array) {
+ return "uint8array";
+ }
+ if (JSZip.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.
+ */
+ JSZip.utils.checkSupport = function (type) {
+ var supported = true;
+ switch (type.toLowerCase()) {
+ case "uint8array":
+ supported = JSZip.support.uint8array;
+ break;
+ case "arraybuffer":
+ supported = JSZip.support.arraybuffer;
+ break;
+ case "nodebuffer":
+ supported = JSZip.support.nodebuffer;
+ break;
+ case "blob":
+ supported = JSZip.support.blob;
+ break;
+ }
+ if (!supported) {
+ throw new Error(type + " is not supported by this browser");
+ }
+ };
+
+
+})();
+
+(function (){
+ /**
+ * Represents an entry in the zip.
+ * The content may or may not be compressed.
+ * @constructor
+ */
+ JSZip.CompressedObject = function () {
+ this.compressedSize = 0;
+ this.uncompressedSize = 0;
+ this.crc32 = 0;
+ this.compressionMethod = null;
+ this.compressedContent = null;
+ };
+
+ JSZip.CompressedObject.prototype = {
+ /**
+ * Return the decompressed content in an unspecified format.
+ * The format will depend on the decompressor.
+ * @return {Object} the decompressed content.
+ */
+ getContent : function () {
+ return null; // see implementation
+ },
+ /**
+ * Return the compressed content in an unspecified format.
+ * The format will depend on the compressed conten source.
+ * @return {Object} the compressed content.
+ */
+ getCompressedContent : function () {
+ return null; // see implementation
+ }
+ };
+})();
+
+/**
+ *
+ * Base64 encode / decode
+ * http://www.webtoolkit.info/
+ *
+ * Hacked so that it doesn't utf8 en/decode everything
+ **/
+JSZip.base64 = (function() {
+ // private property
+ var _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+
+ return {
+ // public method for encoding
+ encode : function(input, utf8) {
+ var output = "";
+ var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
+ var i = 0;
+
+ while (i < input.length) {
+
+ chr1 = input.charCodeAt(i++);
+ chr2 = input.charCodeAt(i++);
+ chr3 = input.charCodeAt(i++);
+
+ enc1 = chr1 >> 2;
+ enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
+ enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
+ enc4 = chr3 & 63;
+
+ if (isNaN(chr2)) {
+ enc3 = enc4 = 64;
+ } else if (isNaN(chr3)) {
+ enc4 = 64;
+ }
+
+ output = output +
+ _keyStr.charAt(enc1) + _keyStr.charAt(enc2) +
+ _keyStr.charAt(enc3) + _keyStr.charAt(enc4);
+
+ }
+
+ return output;
+ },
+
+ // public method for decoding
+ decode : function(input, utf8) {
+ var output = "";
+ var chr1, chr2, chr3;
+ var enc1, enc2, enc3, enc4;
+ var i = 0;
+
+ input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
+
+ while (i < input.length) {
+
+ enc1 = _keyStr.indexOf(input.charAt(i++));
+ enc2 = _keyStr.indexOf(input.charAt(i++));
+ enc3 = _keyStr.indexOf(input.charAt(i++));
+ enc4 = _keyStr.indexOf(input.charAt(i++));
+
+ chr1 = (enc1 << 2) | (enc2 >> 4);
+ chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
+ chr3 = ((enc3 & 3) << 6) | enc4;
+
+ output = output + String.fromCharCode(chr1);
+
+ if (enc3 != 64) {
+ output = output + String.fromCharCode(chr2);
+ }
+ if (enc4 != 64) {
+ output = output + String.fromCharCode(chr3);
+ }
+
+ }
+
+ return output;
+
+ }
+ };
+}());
+
+// enforcing Stuk's coding style
+// vim: set shiftwidth=3 softtabstop=3:
\ No newline at end of file