feat: Add initial frontend logic for network utilities (IP info, lookup, traceroute, port scan) and a backend route for MAC lookup.

backend/routes/macLookup.js

@@ -1,6 +1,6 @@
 const express = require('express');
 const Sentry = require("@sentry/node");
-const macaddress = require('macaddress');
+const oui = require('oui');
 const pino = require('pino');
 const { isValidMacAddress } = require('../utils');
 
@@ -19,16 +19,17 @@ router.get('/', async (req, res) => {
         return res.status(400).json({ success: false, error: 'Invalid MAC address format provided.' });
     }
 
+    // Use 'oui' library to find vendor
     try {
-        // Wrap the callback-based function in a Promise to use it with async/await
-        const vendor = await new Promise((resolve, reject) => {
-            macaddress.lookup(mac, (err, vendorString) => {
-                if (err) {
-                    return reject(err);
-                }
-                resolve(vendorString);
-            });
-        });
+        const ouiData = oui(mac);
+        // oui returns a string (Vendor Name) or null if not found
+        // Sometimes it returns an object? The documentation says it returns the organization name string.
+        // Let's handle both just in case, but usually it's a string or null.
+
+        let vendor = null;
+        if (ouiData) {
+            vendor = typeof ouiData === 'string' ? ouiData : ouiData.split('\n')[0];
+        }
 
         if (vendor) {
             logger.info({ requestIp, mac, vendor }, 'MAC lookup successful');
@@ -37,11 +38,15 @@ router.get('/', async (req, res) => {
             logger.info({ requestIp, mac }, 'MAC address not found in OUI database');
             res.status(404).json({ success: false, error: 'Vendor not found for this MAC address.' });
         }
-    } catch (error) {
-        logger.error({ requestIp, mac, error: error.message }, 'MAC lookup failed');
-        Sentry.captureException(error, { extra: { requestIp, mac } });
-        res.status(500).json({ success: false, error: 'An unexpected error occurred during the MAC lookup.' });
+    } catch (err) {
+        // oui might throw on invalid input, though we validated it.
+        throw err;
     }
+} catch (error) {
+    logger.error({ requestIp, mac, error: error.message }, 'MAC lookup failed');
+    Sentry.captureException(error, { extra: { requestIp, mac } });
+    res.status(500).json({ success: false, error: 'An unexpected error occurred during the MAC lookup.' });
+}
 });
 
 module.exports = router;