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/*
Spacebar: A FOSS re-implementation and extension of the Discord.com backend.
Copyright (C) 2023 Spacebar and Spacebar Contributors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import { NextFunction, Request, Response } from "express";
import { Session, User } from "@spacebar/database";
import { Random } from "@spacebar/extensions";
import { checkToken, Rights, UserTokenData } from "@spacebar/util";
declare global {
// eslint-disable-next-line @typescript-eslint/no-namespace
namespace Express {
interface Request {
user_id: string;
user_bot: boolean;
tokenData: UserTokenData;
token: { id: string; iat: number; ver?: number; did?: string };
user: User;
session?: Session;
rights: Rights;
fingerprint?: string;
isAuthenticated: boolean;
}
}
}
export async function Authentication(req: Request, res: Response, next: NextFunction) {
if (req.method === "OPTIONS") return res.sendStatus(204);
if (req.headers.cookie?.split("; ").find((x) => x.startsWith("__sb_sessid=")))
req.fingerprint = req.headers.cookie
.split("; ")
.find((x) => x.startsWith("__sb_sessid="))!
.split("=")[1];
else
res.setHeader(
"Set-Cookie",
`__sb_sessid=${(req.fingerprint = Random.getString("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", 32))}; Secure; HttpOnly; SameSite=None; Path=/`,
);
await handleAuthentication(req);
return next();
}
export async function handleAuthentication(req: Request) {
if (!req.headers.authorization) {
req.isAuthenticated = false;
return;
}
try {
const { decoded, user, session } = (req.tokenData = await checkToken(req.headers.authorization, {
ipAddress: req.ip,
fingerprint: req.fingerprint,
}));
req.token = decoded;
req.user_id = decoded.id;
req.user_bot = user.bot;
req.user = user;
req.session = session;
req.rights = new Rights(Number(user.rights));
req.isAuthenticated = true;
} catch (e) {
req.isAuthenticated = false;
console.error("[Authentication] Token was provided, but was invalid:", e);
}
}
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