110 lines
3.0 KiB
TypeScript
110 lines
3.0 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 type {OAuth2Config} from '@fluxer/oauth2/src/OAuth2';
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import {base64EncodeString} from '@fluxer/oauth2/src/OAuth2';
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export interface TokenResponse {
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access_token: string;
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token_type: string;
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expires_in: number;
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refresh_token?: string;
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scope: string;
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}
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export interface LoggerInterface {
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debug(obj: Record<string, unknown> | string, msg?: string): void;
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info(obj: Record<string, unknown> | string, msg?: string): void;
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warn(obj: Record<string, unknown> | string, msg?: string): void;
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error(obj: Record<string, unknown> | string, msg?: string): void;
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}
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interface ExchangeCodeOptions {
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logger?: LoggerInterface;
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}
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export async function exchangeCode(
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config: OAuth2Config,
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code: string,
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options?: ExchangeCodeOptions,
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): Promise<TokenResponse | null> {
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try {
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const response = await fetch(config.tokenEndpoint, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/x-www-form-urlencoded',
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},
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body: new URLSearchParams({
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grant_type: 'authorization_code',
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code,
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redirect_uri: config.redirectUri,
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client_id: config.clientId,
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client_secret: config.clientSecret,
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}),
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});
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if (!response.ok) {
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options?.logger?.warn(
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{status: response.status, tokenEndpoint: config.tokenEndpoint},
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'OAuth2 code exchange failed',
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);
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return null;
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}
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return (await response.json()) as TokenResponse;
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} catch (err) {
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options?.logger?.error(
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{error: err instanceof Error ? err.message : String(err), tokenEndpoint: config.tokenEndpoint},
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'OAuth2 code exchange error',
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);
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return null;
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}
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}
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interface RevokeTokenOptions {
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logger?: LoggerInterface;
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}
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export async function revokeToken(
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config: OAuth2Config,
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token: string,
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revokeEndpoint: string,
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options?: RevokeTokenOptions,
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): Promise<void> {
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try {
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const basic = `Basic ${base64EncodeString(`${config.clientId}:${config.clientSecret}`)}`;
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await fetch(revokeEndpoint, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/x-www-form-urlencoded',
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Authorization: basic,
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},
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body: new URLSearchParams({
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token,
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token_type_hint: 'access_token',
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}),
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});
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} catch (err) {
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options?.logger?.warn(
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{error: err instanceof Error ? err.message : String(err), revokeEndpoint},
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'OAuth2 token revocation failed',
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);
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}
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}
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