/**
* Returns the timezone for an IP address.
*
* @param string $ip IP address to check (defaults to <get_ip_address>)
* @return string Timezone identifier or false on error
*/
function get_timezone_by_ip($ip = false)
{
if ($ip === false) {
$ip = $GLOBALS['current_ip_addr'];
}
if (starts_with($ip, "1.1 ") || starts_with($ip, "192.168.")) {
return false;
}
$key = "get_timezone_by_ip." . getAppVersion('nc') . "-" . $ip;
$ret = cache_get($key);
if ($ret) {
return $ret;
}
/*
// new url with api key:
$url = "https://api.ipinfodb.com/v3/ip-city/?key=ae4dea477cd8a36cc678c582c3f990fb57a5aae696f878b4e0eee70afa53bf1e&ip=".$GLOBALS['current_ip_addr']."&format=xml";
try
{
$xml = downloadData($url, false, false, 60 * 60, 2);
}catch(Exception $ex){ WdfException::Log("Unable to get Timezone for ".$ip." ($url)",$ex); return false; }
if( preg_match_all('/<timeZone>([^<]*)<\/timeZone>/', $xml, $zone, PREG_SET_ORDER) )
{
$zone = $zone[0];
if($zone[1] != "")
{
cache_set($key,$zone[1], 24 * 60 * 60);
return $zone[1];
}
}
// log_error("No timezone found for ".$GLOBALS['current_ip_addr']." via ipinfodb.com");
*/
$url = "http://ip-api.com/php/" . $ip;
try {
$data = @unserialize(downloadData($url, false, false, 60 * 60, 2));
} catch (Exception $ex) {
WdfException::Log("Unable to get Timezone for " . $ip . " ({$url}) " . $ex->getMessage(), $ex);
return false;
}
if ($data && $data['status'] == 'success') {
$zone = $data['timezone'];
cache_set($key, $zone, 24 * 60 * 60);
return $zone;
}
log_error("No timezone found for " . $ip . " via ip-api.com");
$coords = get_coordinates_by_ip($ip);
if ($coords === false) {
log_error("No timezone found for IP " . $ip . " (missing coordinates)");
// disaster-fallback: use our timezone:
return "Etc/GMT+2";
}
// ALTERNATIVE 1:
// ws.geonames.org had only timeouts on 2/10/2010...
// $url = "http://ws.geonames.org/timezone?lat=".$coords['latitude'].'&lng='.$coords['longitude'];
$url = "http://api.geonames.org/timezone?lat=" . $coords['latitude'] . '&lng=' . $coords['longitude'] . "&username=scavix";
try {
$xml = downloadData($url, false, false, 60 * 60, 2);
} catch (Exception $ex) {
WdfException::Log("Unable to get Timezone for " . $ip . " ({$url}) " . $ex->getMessage(), $ex);
return false;
}
if (preg_match_all('/<timezoneId>([^<]*)<\\/timezoneId>/', $xml, $zone, PREG_SET_ORDER)) {
$zone = $zone[0];
cache_set($key, $zone[1], 24 * 60 * 60);
return $zone[1];
}
log_error("No timezone found for " . $ip . " via geonames.org");
// ALTERNATIVE 2:
$url = "http://www.earthtools.org/timezone/" . $coords['latitude'] . '/' . $coords['longitude'];
try {
$xml = downloadData($url, false, false, 60 * 60, 2);
} catch (Exception $ex) {
WdfException::Log("Unable to get Timezone for " . $ip . " ({$url})", $ex);
return false;
}
if (preg_match_all('/<offset>([^<]*)<\\/offset>/', $xml, $zone, PREG_SET_ORDER)) {
$zone = $zone[0];
$zone[1] = round($zone[1], 0);
$ret = "Etc/GMT" . ($zone[1] < 0 ? $zone[1] : "+" . $zone[1]);
cache_set($key, $ret, 24 * 60 * 60);
return $ret;
}
log_error("No timezone found for " . $ip . " via earthtools.org");
// disaster-fallback: use our timezone:
return "Etc/GMT+2";
}
/**
* Returns the timezone for an IP address.
*
* @param string $ip IP address to check (defaults to <get_ip_address>)
* @return string Timezone identifier or false on error
*/
function get_timezone_by_ip($ip = false)
{
if ($ip === false) {
$ip = $GLOBALS['current_ip_addr'];
}
if (starts_with($ip, "1.1 ") || starts_with($ip, "192.168.1.")) {
return false;
}
$key = "get_timezone_by_ip." . getAppVersion('nc') . "-" . $ip;
$ret = cache_get($key);
if ($ret) {
return $ret;
}
// new url with api key:
$url = "http://api.ipinfodb.com/v2/ip_query.php?key=6a6ef9d4d82491036a4f3dbd465d52d2e2d5253d1285a3dda02b65752b5474f8&ip=" . $GLOBALS['current_ip_addr'] . "&timezone=true";
try {
$xml = downloadData($url, false, false, 60 * 60, 2);
} catch (Exception $ex) {
WdfException::Log("Unable to get Timezone for " . $ip . " ({$url})", $ex);
return false;
}
if (preg_match_all('/<TimezoneName>([^<]*)<\\/TimezoneName>/', $xml, $zone, PREG_SET_ORDER)) {
$zone = $zone[0];
if ($zone[1] != "") {
cache_set($key, $zone[1], 24 * 60 * 60);
return $zone[1];
}
}
// log_error("No timezone found for ".$GLOBALS['current_ip_addr']." via ipinfodb.com");
$coords = get_coordinates_by_ip($ip);
if ($coords === false) {
log_error("No timezone found for IP " . $ip . " (missing coordinates)");
// disaster-fallback: use our timezone:
return "Etc/GMT+2";
}
// ALTERNATIVE 1:
// ws.geonames.org had only timeouts on 2/10/2010...
// $url = "http://ws.geonames.org/timezone?lat=".$coords['latitude'].'&lng='.$coords['longitude'];
$url = "http://api.geonames.org/timezone?lat=" . $coords['latitude'] . '&lng=' . $coords['longitude'] . "&username=scendix";
try {
$xml = downloadData($url, false, false, 60 * 60, 2);
} catch (Exception $ex) {
WdfException::Log("Unable to get Timezone for " . $ip . " ({$url}) " . $ex->getMessage(), $ex);
return false;
}
if (preg_match_all('/<timezoneId>([^<]*)<\\/timezoneId>/', $xml, $zone, PREG_SET_ORDER)) {
$zone = $zone[0];
cache_set($key, $zone[1], 24 * 60 * 60);
return $zone[1];
}
log_error("No timezone found for " . $ip . " via geonames.org");
// ALTERNATIVE 2:
$url = "http://www.earthtools.org/timezone/" . $coords['latitude'] . '/' . $coords['longitude'];
try {
$xml = downloadData($url, false, false, 60 * 60, 2);
} catch (Exception $ex) {
WdfException::Log("Unable to get Timezone for " . $ip . " ({$url})", $ex);
return false;
}
if (preg_match_all('/<offset>([^<]*)<\\/offset>/', $xml, $zone, PREG_SET_ORDER)) {
$zone = $zone[0];
$zone[1] = round($zone[1], 0);
$ret = "Etc/GMT" . ($zone[1] < 0 ? $zone[1] : "+" . $zone[1]);
cache_set($key, $ret, 24 * 60 * 60);
return $ret;
}
log_error("No timezone found for " . $ip . " via earthtools.org");
// disaster-fallback: use our timezone:
return "Etc/GMT+2";
}
