//#region src/utils/encode.ts /** * @module * Encode utility. */ const decodeBase64Url = (str) => { return decodeBase64(str.replace(/_|-/g, (m) => ({ _: "/", "-": "+" })[m] ?? m)); }; const encodeBase64Url = (buf) => encodeBase64(buf).replace(/\/|\+/g, (m) => ({ "/": "_", "+": "-" })[m] ?? m); const encodeBase64 = (buf) => { let binary = ""; const bytes = new Uint8Array(buf); for (let i = 0, len = bytes.length; i < len; i++) binary += String.fromCharCode(bytes[i]); return btoa(binary); }; const decodeBase64 = (str) => { const binary = atob(str); const bytes = new Uint8Array(new ArrayBuffer(binary.length)); const half = binary.length / 2; for (let i = 0, j = binary.length - 1; i <= half; i++, j--) { bytes[i] = binary.charCodeAt(i); bytes[j] = binary.charCodeAt(j); } return bytes; }; //#endregion export { decodeBase64, decodeBase64Url, encodeBase64, encodeBase64Url };