77 lines
2.0 KiB
TypeScript
77 lines
2.0 KiB
TypeScript
/*
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* Copyright (C) 2026 Fluxer Contributors
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*
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* This file is part of Fluxer.
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*
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* Fluxer is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Fluxer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
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*/
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import {jwtVerify, SignJWT} from 'jose';
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import type {UserID} from '~/BrandedTypes';
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import {Config} from '~/Config';
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const SUDO_TOKEN_EXPIRY_SECONDS = 5 * 60;
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export class SudoModeService {
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private readonly secret: Uint8Array;
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constructor() {
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this.secret = new TextEncoder().encode(Config.auth.sudoModeSecret);
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}
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async generateSudoToken(userId: UserID): Promise<string> {
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const now = Math.floor(Date.now() / 1000);
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const jwt = await new SignJWT({
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type: 'sudo',
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})
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.setProtectedHeader({alg: 'HS256'})
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.setSubject(userId.toString())
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.setIssuedAt(now)
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.setExpirationTime(now + SUDO_TOKEN_EXPIRY_SECONDS)
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.sign(this.secret);
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return jwt;
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}
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async verifySudoToken(token: string, userId: UserID): Promise<boolean> {
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try {
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const {payload} = await jwtVerify(token, this.secret, {
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algorithms: ['HS256'],
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});
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if (payload.type !== 'sudo') {
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return false;
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}
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if (payload.sub !== userId.toString()) {
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return false;
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}
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return true;
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} catch {
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return false;
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}
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}
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}
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let sudoModeServiceInstance: SudoModeService | null = null;
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export function getSudoModeService(): SudoModeService {
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if (!sudoModeServiceInstance) {
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sudoModeServiceInstance = new SudoModeService();
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}
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return sudoModeServiceInstance;
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}
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