Added steam id validator

pages/api/isvalidsteamid.js

@@ -0,0 +1,47 @@
+import WebsiteTypes from "../../src/consts/WebsiteType";
+
+const TO_CHECK = [
+	WebsiteTypes.ScoreSaber.ApiUrl,
+	WebsiteTypes.BeatLeader.ApiUrl,
+];
+
+// TODO: Cache the result
+export default async function handler(req, res) {
+	const steamId = req.query.steamid;
+	if (!steamId) {
+		return res.json({
+			status: 404,
+			message: "Steam id not provided: Provide in the query.",
+		});
+	}
+
+	let invalid = false;
+	for (const url of TO_CHECK) {
+		const isValid = await checkLeaderboard(url, steamId);
+
+		if (isValid) {
+			break;
+		}
+		if (!isValid) {
+			invalid = true;
+			break;
+		}
+	}
+
+	return res.json({
+		status: "OK",
+		message: invalid ? `Invalid` : "Valid",
+	});
+}
+
+async function checkLeaderboard(url, steamId) {
+	console.log(url.replace("%s", steamId));
+	const data = await fetch(url.replace("%s", steamId), {
+		headers: {
+			"X-Requested-With": "BeatSaber Overlay",
+		},
+	});
+	const json = await data.json();
+
+	return !!json.pp;
+}