Jellystat/backend/routes/utils.js

// api.js
const https = require("https");
const axios = require("axios");
const express = require("express");

const router = express.Router();

const geoliteUrlBase = 'https://geolite.info/geoip/v2.1/city';

const geoliteAccountId = process.env.GEOLITE_ACCOUNT_ID;
const geoliteLicenseKey = process.env.GEOLITE_LICENSE_KEY;

//https://stackoverflow.com/a/29268025
const ipRegex = new RegExp(/\b(?!(10\.|172\.(1[6-9]|2[0-9]|3[0-1])\.|192\.168))(?:(?:2(?:[0-4][0-9]|5[0-5])|[0-1]?[0-9]?[0-9])\.){3}(?:(?:2([0-4][0-9]|5[0-5])|[0-1]?[0-9]?[0-9]))\b/);

const agent = new https.Agent({
    rejectUnauthorized: (process.env.REJECT_SELF_SIGNED_CERTIFICATES || 'true').toLowerCase() ==='true'
});

const axios_instance = axios.create({
    httpsAgent: agent
});

router.post("/geolocateIp", async (req, res) => {
  try {
    if(!(geoliteAccountId && geoliteLicenseKey)) {
        return res.status(501).send('GeoLite information missing!');
    }

    const { ipAddress } = req.body;
    ipRegex.lastIndex = 0;

    if(!ipAddress || !ipRegex.test(ipAddress)) {
        return res.status(400).send('Invalid IP address sent!');
    }

    const response = await axios_instance.get(`${geoliteUrlBase}/${ipAddress}`, {
        auth: {
            username: geoliteAccountId,
            password: geoliteLicenseKey
        }
      });
    return res.send(response.data);
  } catch (error) {
    res.status(503);
    res.send(error);
  }
});

module.exports = router;