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| import { base64 } from "./base64.js"; | |
| const BASE64URL_REGEX = /^[A-Za-z0-9_-]*$/; | |
| export function normalize(text) { | |
| return text.replace(/[\n\r\t ]/g, ""); | |
| } | |
| export function is(text) { | |
| return typeof text === "string" && BASE64URL_REGEX.test(normalize(text)); | |
| } | |
| export function encode(data, _options) { | |
| return base64.encode(data).replace(/\+/g, "-").replace(/\//g, "_").replace(/=+$/g, ""); | |
| } | |
| export function decode(text, _options) { | |
| const normalized = normalize(text); | |
| if (!is(normalized)) { | |
| throw new TypeError("Input is not valid Base64Url text"); | |
| } | |
| return base64.decode(base64.pad(normalized.replace(/-/g, "+").replace(/_/g, "/"))); | |
| } | |
| export const base64url = { encode, decode, is, normalize }; | |