twifeur/routes/middleware.ts
2024-05-23 17:34:35 +02:00

40 lines
962 B
TypeScript

import { FreshContext } from "$fresh/server.ts";
import { deleteCookie, getCookies, setCookie } from "$std/http/cookie.ts";
import { auth, Token } from "../auth/auth.ts";
type State = {
user_id: string | null;
};
export async function handler(
req: Request,
ctx: FreshContext<State>,
) {
const cookies = getCookies(req.headers);
const token = get_session_token(cookies);
ctx.state.user_id = token?.user_id ?? null;
const resp = await ctx.next();
set_session_token(resp.headers, token);
return resp;
}
function get_session_token(cookies: Record<string, string>) {
const stored = cookies["auth_token"];
if (stored === undefined) return null;
const token = auth.tokens.get(stored);
if (token === null) return null;
return token;
}
function set_session_token(headers: Headers, token: Token | null) {
if (token === null) {
deleteCookie(headers, "auth_token");
return;
}
setCookie(headers, {
name: "auth_token",
value: token.raw,
});
}