// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license. // @ts-check /// <reference path="../../core/internal.d.ts" /> /// <reference path="../webidl/internal.d.ts" /> /// <reference path="../web/internal.d.ts" /> /// <reference lib="esnext" /> import { primordials } from "ext:core/mod.js"; import { op_base64_atob, op_base64_btoa } from "ext:core/ops"; const { ObjectPrototypeIsPrototypeOf, TypeErrorPrototype, } = primordials; import * as webidl from "ext:deno_webidl/00_webidl.js"; import { DOMException } from "./01_dom_exception.js"; /** * @param {string} data * @returns {string} */ function atob(data) { const prefix = "Failed to execute 'atob'"; webidl.requiredArguments(arguments.length, 1, prefix); data = webidl.converters.DOMString(data, prefix, "Argument 1"); try { return op_base64_atob(data); } catch (e) { if (ObjectPrototypeIsPrototypeOf(TypeErrorPrototype, e)) { throw new DOMException( "Failed to decode base64: invalid character", "InvalidCharacterError", ); } throw e; } } /** * @param {string} data * @returns {string} */ function btoa(data) { const prefix = "Failed to execute 'btoa'"; webidl.requiredArguments(arguments.length, 1, prefix); data = webidl.converters.DOMString(data, prefix, "Argument 1"); try { return op_base64_btoa(data); } catch (e) { if (ObjectPrototypeIsPrototypeOf(TypeErrorPrototype, e)) { throw new DOMException( "Cannot encode string: string contains characters outside of the Latin1 range", "InvalidCharacterError", ); } throw e; } } export { atob, btoa };