Pimcore\Update::updateMaxmindDb PHP Method

    public static function updateMaxmindDb()
    {
        $downloadUrl = "http://geolite.maxmind.com/download/geoip/database/GeoLite2-City.mmdb.gz";
        $geoDbFile = PIMCORE_CONFIGURATION_DIRECTORY . "/GeoLite2-City.mmdb";
        $geoDbFileGz = $geoDbFile . ".gz";
        $firstTuesdayOfMonth = strtotime(date("F") . " 2013 tuesday");
        $filemtime = 0;
        if (file_exists($geoDbFile)) {
            $filemtime = filemtime($geoDbFile);
        }
        // update if file is older than 30 days, or if it is the first tuesday of the month
        if ($filemtime < time() - 30 * 86400 || date("m/d/Y") == date("m/d/Y", $firstTuesdayOfMonth) && $filemtime < time() - 86400) {
            $data = Tool::getHttpData($downloadUrl);
            if (strlen($data) > 1000000) {
                File::put($geoDbFileGz, $data);
                @unlink($geoDbFile);
                $sfp = gzopen($geoDbFileGz, "rb");
                $fp = fopen($geoDbFile, "w");
                while ($string = gzread($sfp, 4096)) {
                    fwrite($fp, $string, strlen($string));
                }
                gzclose($sfp);
                fclose($fp);
                unlink($geoDbFileGz);
                Logger::info("Updated MaxMind GeoIP2 Database in: " . $geoDbFile);
            } else {
                Logger::err("Failed to update MaxMind GeoIP2, size is under about 1M");
            }
        } else {
            Logger::debug("MayMind GeoIP2 Download skipped, everything up to date, last update: " . date("m/d/Y H:i", $filemtime));
        }
    }