session.ts
| 1 | import { ADMIN_USERNAME } from "../constants.ts"; |
| 2 | import { db } from "../db"; |
| 3 | |
| 4 | export interface SessionUser { |
| 5 | id: number; |
| 6 | username: string; |
| 7 | isAdmin: boolean; |
| 8 | avatar_version: number; |
| 9 | } |
| 10 | |
| 11 | export async function resolveSession( |
| 12 | cookie: string | undefined, |
| 13 | ): Promise<SessionUser | null> { |
| 14 | if (!cookie) return null; |
| 15 | const now = new Date().toISOString(); |
| 16 | const session = await db |
| 17 | .selectFrom("sessions") |
| 18 | .innerJoin("users", "users.id", "sessions.user_id") |
| 19 | .select([ |
| 20 | "users.id", |
| 21 | "users.username", |
| 22 | "users.avatar_version", |
| 23 | "sessions.expires_at", |
| 24 | ]) |
| 25 | .where("sessions.id", "=", cookie) |
| 26 | .where("sessions.expires_at", ">", now) |
| 27 | .executeTakeFirst(); |
| 28 | if (!session) return null; |
| 29 | return { |
| 30 | id: session.id, |
| 31 | username: session.username, |
| 32 | isAdmin: session.username === ADMIN_USERNAME, |
| 33 | avatar_version: session.avatar_version, |
| 34 | }; |
| 35 | } |
| 36 | |
| 37 | export function requireAuth(user: SessionUser | null): Response | null { |
| 38 | if (!user) { |
| 39 | return new Response(null, { |
| 40 | status: 302, |
| 41 | headers: { Location: "/login" }, |
| 42 | }); |
| 43 | } |
| 44 | return null; |
| 45 | } |
| 46 | |
| 47 | export function requireAdmin(user: SessionUser | null): Response | null { |
| 48 | if (!user) { |
| 49 | return new Response(null, { |
| 50 | status: 302, |
| 51 | headers: { Location: "/login" }, |
| 52 | }); |
| 53 | } |
| 54 | if (!user.isAdmin) { |
| 55 | return new Response("Forbidden", { |
| 56 | status: 403, |
| 57 | headers: { "Content-Type": "text/plain; charset=utf-8" }, |
| 58 | }); |
| 59 | } |
| 60 | return null; |
| 61 | } |
| 62 |