Implement basic auth on portal

apps/portal/src/routes/login/+page.server.ts

@@ -0,0 +1,21 @@
+import { fail, redirect } from "@sveltejs/kit";
+import type { Actions } from "./$types";
+import { env } from "$env/dynamic/private";
+import { createHmac } from "node:crypto";
+
+export const actions: Actions = {
+    default: async ({ request, cookies }) => {
+        const data = await request.formData();
+        const password = data.get("password");
+
+        if (password !== env.PORTAL_PASSWORD)
+            return fail(401, { error: "Invalid password" });
+
+        const hash = createHmac("sha256", env.PORTAL_SECRET)
+            .update("authenticated")
+            .digest("hex");
+
+        cookies.set("session", hash, { path: "/", maxAge: 60 * 60 * 24 * 7 });
+        redirect(303, "/");
+    },
+};