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Diffstat (limited to 'bower_components/bootstrap/assets/js/jszip.js')
| -rwxr-xr-x | bower_components/bootstrap/assets/js/jszip.js | 1425 |
1 files changed, 1425 insertions, 0 deletions
diff --git a/bower_components/bootstrap/assets/js/jszip.js b/bower_components/bootstrap/assets/js/jszip.js new file mode 100755 index 00000000..03781890 --- /dev/null +++ b/bower_components/bootstrap/assets/js/jszip.js @@ -0,0 +1,1425 @@ +/** + +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:
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