spring-security/javascript/lib/base64url.js

34 lines
1.1 KiB
JavaScript

/*
* Copyright 2002-2024 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
"use strict";
export default {
encode: function (buffer) {
const base64 = window.btoa(String.fromCharCode(...new Uint8Array(buffer)));
return base64.replace(/=/g, "").replace(/\+/g, "-").replace(/\//g, "_");
},
decode: function (base64url) {
const base64 = base64url.replace(/-/g, "+").replace(/_/g, "/");
const binStr = window.atob(base64);
const bin = new Uint8Array(binStr.length);
for (let i = 0; i < binStr.length; i++) {
bin[i] = binStr.charCodeAt(i);
}
return bin.buffer;
},
};