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static.ts
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static.ts
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/*
* Copyright 2024 The Backstage 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
*
* http://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.
*/
import { Config } from '@backstage/config';
import { TokenHandler } from './types';
const MIN_TOKEN_LENGTH = 8;
/**
* Handles `type: static` access.
*
* @internal
*/
export class StaticTokenHandler implements TokenHandler {
#entries: Array<{ token: string; subject: string }> = [];
add(options: Config) {
const token = options.getString('token');
if (!token.match(/^\S+$/)) {
throw new Error('Illegal token, must be a set of non-space characters');
}
if (token.length < MIN_TOKEN_LENGTH) {
throw new Error(
`Illegal token, must be at least ${MIN_TOKEN_LENGTH} characters length`,
);
}
const subject = options.getString('subject');
if (!subject.match(/^\S+$/)) {
throw new Error('Illegal subject, must be a set of non-space characters');
}
this.#entries.push({ token, subject });
}
async verifyToken(token: string) {
const entry = this.#entries.find(e => e.token === token);
if (!entry) {
return undefined;
}
return { subject: entry.subject };
}
}