File size: 2,205 Bytes
489b6e2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 | import { NextRequest, NextResponse } from "next/server";
export type SessionUser = {
id: string;
name: string;
email: string;
};
const cookieName = "hipcamp_session";
const sessionMaxAgeSeconds = 60 * 60 * 24 * 30;
type SessionPayload = SessionUser & { exp: number };
function secret() {
return process.env.SESSION_SECRET || "local-hipcamp-research-secret-change-me";
}
function base64(value: string | ArrayBuffer) {
return Buffer.from(typeof value === "string" ? value : new Uint8Array(value)).toString("base64url");
}
async function signature(payload: string) {
const key = await crypto.subtle.importKey(
"raw",
new TextEncoder().encode(secret()),
{ name: "HMAC", hash: "SHA-256" },
false,
["sign"],
);
return base64(await crypto.subtle.sign("HMAC", key, new TextEncoder().encode(payload)));
}
export async function readSession(request: NextRequest): Promise<SessionUser | null> {
const raw = request.cookies.get(cookieName)?.value;
if (!raw) return null;
const [payload, signed] = raw.split(".");
if (!payload || !signed || signed !== await signature(payload)) return null;
try {
const parsed = JSON.parse(Buffer.from(payload, "base64url").toString("utf8")) as Partial<SessionPayload>;
if (
typeof parsed.id !== "string"
|| typeof parsed.name !== "string"
|| typeof parsed.email !== "string"
|| typeof parsed.exp !== "number"
|| parsed.exp <= Date.now()
) return null;
return { id: parsed.id, name: parsed.name, email: parsed.email };
} catch {
return null;
}
}
export async function setSession(response: NextResponse, user: SessionUser) {
const payload = base64(JSON.stringify({ ...user, exp: Date.now() + sessionMaxAgeSeconds * 1000 }));
response.cookies.set(cookieName, `${payload}.${await signature(payload)}`, {
httpOnly: true,
maxAge: sessionMaxAgeSeconds,
path: "/",
sameSite: "lax",
secure: process.env.SESSION_COOKIE_SECURE === "true" || process.env.NODE_ENV === "production",
});
}
export function clearSession(response: NextResponse) {
response.cookies.set(cookieName, "", {
httpOnly: true,
maxAge: 0,
path: "/",
sameSite: "lax",
});
}
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