diff options
Diffstat (limited to 'bot/node_modules/crypto-js/enc-base64url.js')
| -rw-r--r-- | bot/node_modules/crypto-js/enc-base64url.js | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/bot/node_modules/crypto-js/enc-base64url.js b/bot/node_modules/crypto-js/enc-base64url.js new file mode 100644 index 0000000..2468912 --- /dev/null +++ b/bot/node_modules/crypto-js/enc-base64url.js @@ -0,0 +1,140 @@ +;(function (root, factory) { + if (typeof exports === "object") { + // CommonJS + module.exports = exports = factory(require("./core")); + } + else if (typeof define === "function" && define.amd) { + // AMD + define(["./core"], factory); + } + else { + // Global (browser) + factory(root.CryptoJS); + } +}(this, function (CryptoJS) { + + (function () { + // Shortcuts + var C = CryptoJS; + var C_lib = C.lib; + var WordArray = C_lib.WordArray; + var C_enc = C.enc; + + /** + * Base64url encoding strategy. + */ + var Base64url = C_enc.Base64url = { + /** + * Converts a word array to a Base64url string. + * + * @param {WordArray} wordArray The word array. + * + * @param {boolean} urlSafe Whether to use url safe + * + * @return {string} The Base64url string. + * + * @static + * + * @example + * + * var base64String = CryptoJS.enc.Base64url.stringify(wordArray); + */ + stringify: function (wordArray, urlSafe=true) { + // Shortcuts + var words = wordArray.words; + var sigBytes = wordArray.sigBytes; + var map = urlSafe ? this._safe_map : this._map; + + // Clamp excess bits + wordArray.clamp(); + + // Convert + var base64Chars = []; + for (var i = 0; i < sigBytes; i += 3) { + var byte1 = (words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff; + var byte2 = (words[(i + 1) >>> 2] >>> (24 - ((i + 1) % 4) * 8)) & 0xff; + var byte3 = (words[(i + 2) >>> 2] >>> (24 - ((i + 2) % 4) * 8)) & 0xff; + + var triplet = (byte1 << 16) | (byte2 << 8) | byte3; + + for (var j = 0; (j < 4) && (i + j * 0.75 < sigBytes); j++) { + base64Chars.push(map.charAt((triplet >>> (6 * (3 - j))) & 0x3f)); + } + } + + // Add padding + var paddingChar = map.charAt(64); + if (paddingChar) { + while (base64Chars.length % 4) { + base64Chars.push(paddingChar); + } + } + + return base64Chars.join(''); + }, + + /** + * Converts a Base64url string to a word array. + * + * @param {string} base64Str The Base64url string. + * + * @param {boolean} urlSafe Whether to use url safe + * + * @return {WordArray} The word array. + * + * @static + * + * @example + * + * var wordArray = CryptoJS.enc.Base64url.parse(base64String); + */ + parse: function (base64Str, urlSafe=true) { + // Shortcuts + var base64StrLength = base64Str.length; + var map = urlSafe ? this._safe_map : this._map; + var reverseMap = this._reverseMap; + + if (!reverseMap) { + reverseMap = this._reverseMap = []; + for (var j = 0; j < map.length; j++) { + reverseMap[map.charCodeAt(j)] = j; + } + } + + // Ignore padding + var paddingChar = map.charAt(64); + if (paddingChar) { + var paddingIndex = base64Str.indexOf(paddingChar); + if (paddingIndex !== -1) { + base64StrLength = paddingIndex; + } + } + + // Convert + return parseLoop(base64Str, base64StrLength, reverseMap); + + }, + + _map: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=', + _safe_map: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_', + }; + + function parseLoop(base64Str, base64StrLength, reverseMap) { + var words = []; + var nBytes = 0; + for (var i = 0; i < base64StrLength; i++) { + if (i % 4) { + var bits1 = reverseMap[base64Str.charCodeAt(i - 1)] << ((i % 4) * 2); + var bits2 = reverseMap[base64Str.charCodeAt(i)] >>> (6 - (i % 4) * 2); + var bitsCombined = bits1 | bits2; + words[nBytes >>> 2] |= bitsCombined << (24 - (nBytes % 4) * 8); + nBytes++; + } + } + return WordArray.create(words, nBytes); + } + }()); + + return CryptoJS.enc.Base64url; + +}));
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