mozilla / blurts-server / #13066

const path = require('path')

const reader = require('@maxmind/geoip2-node').Reader

const AppConstants = require('./app-constants')

  if (locationDb && isFresh()) return console.warn('Location database already open.')

  try {

    const dbPath = path.join(AppConstants.GEOIP_GEOLITE2_PATH, AppConstants.GEOIP_GEOLITE2_CITY_FILENAME)

    locationDb = await reader.open(dbPath)

    return console.warn('Could not open location database:', e.message)

  timestamp = Date.now()

  return true

  if (!isFresh()) await openLocationDb()

  try {

    const data = locationDb.city(ip)

    const countryName = data.country?.names[locales.find(locale => data.country?.names[locale])] // find valid locale key and return its value

    const cityName = data.city?.names[locales.find(locale => data.city?.names[locale])]

    const subdivisionName = data.subdivisions?.[0].isoCode

    const subdivisionFiltered = /[A-z]{2,}/.test(subdivisionName) ? subdivisionName : null // return strings that are 2 or more letters, or null (avoid unfamiliar subdivisions like `E` or `09`)

    locationArr = [cityName, subdivisionFiltered, countryName].filter(str => str) // [city name, state code, country code] with non-null items.

    return console.warn('Could not read location from database:', e.message)

  return {

  if (Date.now() - timestamp < 259200000) return true // 1000ms * 60s * 60m * 24h * 3 elapsed time is less than 24hrs

  return false

module.exports = {