move to webapp

lib/utils/cookies.ts

@@ -0,0 +1,79 @@
+import type { IncomingMessage, ServerResponse } from "http";
+import type { CookieSerializeOptions } from "cookie";
+import nookies from "nookies";
+
+const defaultOptions: CookieSerializeOptions = {
+	httpOnly: true,
+	sameSite: "lax",
+	path: "/",
+};
+
+export function getCookies(req?: BaseParams["req"]) {
+	const context = buildContext({ req });
+
+	return nookies.get(context);
+}
+
+type SetCookieParams = BaseParams & {
+	value: string;
+	options?: CookieSerializeOptions;
+};
+
+export function setCookie(params: SetCookieParams) {
+	const { req, res, name, value } = params;
+	const context = buildContext({ res });
+	const options: CookieSerializeOptions = {
+		...defaultOptions,
+		...params.options,
+		secure: isSecureEnvironment(req),
+	};
+
+	return nookies.set(context, name, value, options);
+}
+
+type DestroyCookieParams = BaseParams & {
+	options?: CookieSerializeOptions;
+};
+
+export function destroyCookie(params: DestroyCookieParams) {
+	const { res, name } = params;
+	const context = buildContext({ res });
+	const options = Object.assign({}, defaultOptions, params.options);
+
+	return nookies.destroy(context, name, options);
+}
+
+function isSecureEnvironment(req: IncomingMessage | null | undefined): boolean {
+	if (process.env.NODE_ENV !== "production") {
+		return false;
+	}
+
+	if (!req || !req.headers || !req.headers.host) {
+		return false;
+	}
+
+	const host =
+		(req.headers.host.indexOf(":") > -1 &&
+			req.headers.host.split(":")[0]) ||
+		req.headers.host;
+
+	return !["localhost", "127.0.0.1"].includes(host);
+}
+
+type BaseParams = {
+	req?: IncomingMessage | null;
+	res?: ServerResponse | null;
+	name: string;
+};
+
+function buildContext({ req, res }: Pick<BaseParams, "req" | "res">) {
+	if (req !== null && typeof req !== "undefined") {
+		return { req };
+	}
+
+	if (res !== null && typeof res !== "undefined") {
+		return { res };
+	}
+
+	return null;
+}

lib/utils/hkdf.ts

@@ -0,0 +1,7 @@
+import hkdf from "futoin-hkdf";
+
+const BYTE_LENGTH = 32;
+
+export function encryption(secret: string) {
+	return hkdf(secret, BYTE_LENGTH, { info: "JWE CEK", hash: "SHA-256" });
+}