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1;(function (root, factory) {2	if (typeof exports === "object") {3		// CommonJS4		module.exports = exports = factory(require("./core"));5	}6	else if (typeof define === "function" && define.amd) {7		// AMD8		define(["./core"], factory);9	}10	else {11		// Global (browser)12		factory(root.CryptoJS);13	}14}(this, function (CryptoJS) {15 16	(function () {17	    // Shortcuts18	    var C = CryptoJS;19	    var C_lib = C.lib;20	    var WordArray = C_lib.WordArray;21	    var C_enc = C.enc;22 23	    /**24	     * Base64url encoding strategy.25	     */26	    var Base64url = C_enc.Base64url = {27	        /**28	         * Converts a word array to a Base64url string.29	         *30	         * @param {WordArray} wordArray The word array.31	         *32	         * @param {boolean} urlSafe Whether to use url safe33	         *34	         * @return {string} The Base64url string.35	         *36	         * @static37	         *38	         * @example39	         *40	         *     var base64String = CryptoJS.enc.Base64url.stringify(wordArray);41	         */42	        stringify: function (wordArray, urlSafe) {43	            if (urlSafe === undefined) {44	                urlSafe = true45	            }46	            // Shortcuts47	            var words = wordArray.words;48	            var sigBytes = wordArray.sigBytes;49	            var map = urlSafe ? this._safe_map : this._map;50 51	            // Clamp excess bits52	            wordArray.clamp();53 54	            // Convert55	            var base64Chars = [];56	            for (var i = 0; i < sigBytes; i += 3) {57	                var byte1 = (words[i >>> 2]       >>> (24 - (i % 4) * 8))       & 0xff;58	                var byte2 = (words[(i + 1) >>> 2] >>> (24 - ((i + 1) % 4) * 8)) & 0xff;59	                var byte3 = (words[(i + 2) >>> 2] >>> (24 - ((i + 2) % 4) * 8)) & 0xff;60 61	                var triplet = (byte1 << 16) | (byte2 << 8) | byte3;62 63	                for (var j = 0; (j < 4) && (i + j * 0.75 < sigBytes); j++) {64	                    base64Chars.push(map.charAt((triplet >>> (6 * (3 - j))) & 0x3f));65	                }66	            }67 68	            // Add padding69	            var paddingChar = map.charAt(64);70	            if (paddingChar) {71	                while (base64Chars.length % 4) {72	                    base64Chars.push(paddingChar);73	                }74	            }75 76	            return base64Chars.join('');77	        },78 79	        /**80	         * Converts a Base64url string to a word array.81	         *82	         * @param {string} base64Str The Base64url string.83	         *84	         * @param {boolean} urlSafe Whether to use url safe85	         *86	         * @return {WordArray} The word array.87	         *88	         * @static89	         *90	         * @example91	         *92	         *     var wordArray = CryptoJS.enc.Base64url.parse(base64String);93	         */94	        parse: function (base64Str, urlSafe) {95	            if (urlSafe === undefined) {96	                urlSafe = true97	            }98 99	            // Shortcuts100	            var base64StrLength = base64Str.length;101	            var map = urlSafe ? this._safe_map : this._map;102	            var reverseMap = this._reverseMap;103 104	            if (!reverseMap) {105	                reverseMap = this._reverseMap = [];106	                for (var j = 0; j < map.length; j++) {107	                    reverseMap[map.charCodeAt(j)] = j;108	                }109	            }110 111	            // Ignore padding112	            var paddingChar = map.charAt(64);113	            if (paddingChar) {114	                var paddingIndex = base64Str.indexOf(paddingChar);115	                if (paddingIndex !== -1) {116	                    base64StrLength = paddingIndex;117	                }118	            }119 120	            // Convert121	            return parseLoop(base64Str, base64StrLength, reverseMap);122 123	        },124 125	        _map: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=',126	        _safe_map: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_',127	    };128 129	    function parseLoop(base64Str, base64StrLength, reverseMap) {130	        var words = [];131	        var nBytes = 0;132	        for (var i = 0; i < base64StrLength; i++) {133	            if (i % 4) {134	                var bits1 = reverseMap[base64Str.charCodeAt(i - 1)] << ((i % 4) * 2);135	                var bits2 = reverseMap[base64Str.charCodeAt(i)] >>> (6 - (i % 4) * 2);136	                var bitsCombined = bits1 | bits2;137	                words[nBytes >>> 2] |= bitsCombined << (24 - (nBytes % 4) * 8);138	                nBytes++;139	            }140	        }141	        return WordArray.create(words, nBytes);142	    }143	}());144 145 146	return CryptoJS.enc.Base64url;147 148}));