// openDB opens and returns the IP database file or URL.
func openDB(c *Config) (*freegeoip.DB, error) {
u, err := url.Parse(c.DB)
if err != nil || len(u.Scheme) == 0 {
return freegeoip.Open(c.DB)
}
return freegeoip.OpenURL(c.DB, c.UpdateInterval, c.RetryInterval)
}
// openDB opens and returns the IP database.
func openDB(dsn string, updateIntvl, maxRetryIntvl time.Duration) (db *freegeoip.DB, err error) {
u, err := url.Parse(dsn)
if err != nil || len(u.Scheme) == 0 {
db, err = freegeoip.Open(dsn)
} else {
db, err = freegeoip.OpenURL(dsn, updateIntvl, maxRetryIntvl)
}
return
}
// openDB opens and returns the IP database file or URL.
func openDB(c *Config) (*freegeoip.DB, error) {
// This is a paid product. Get the updates URL.
if len(c.UserID) > 0 && len(c.LicenseKey) > 0 {
var err error
c.DB, err = freegeoip.GeoIPUpdateURL(c.UpdatesHost, c.UserID, c.LicenseKey, c.ProductID)
if err != nil {
return nil, err
} else {
log.Println("Using updates URL:", c.DB)
}
}
u, err := url.Parse(c.DB)
if err != nil || len(u.Scheme) == 0 {
return freegeoip.Open(c.DB)
}
return freegeoip.OpenURL(c.DB, c.UpdateInterval, c.RetryInterval)
}
func lookupIP(ip string) (float64, float64) {
updateInterval := 7 * 24 * time.Hour // week
maxRetryInterval := time.Hour
db, err := freegeoip.OpenURL(maxmindFile, updateInterval, maxRetryInterval)
if err != nil {
log.Fatal(err)
}
defer db.Close()
select {
case <-db.NotifyOpen():
log.Println("Reading from the geoip file")
case err := <-db.NotifyError():
log.Fatal(err)
}
var result customQuery
err = db.Lookup(net.ParseIP(ip), &result)
if err != nil {
log.Fatal(err)
}
log.Printf("Approximate location is %v, %v\n", result.Location.Latitude, result.Location.Longitude)
return result.Location.Latitude, result.Location.Longitude
}