/**
* Check if a given remote address (IP address) is allowed based on allow and deny arrays
*
* @param string $remoteaddr
* @param array $allow
* @param array $deny
* @return boolean
*/
public static function checkRemoteAddress($remoteaddr, $arr_allow, $arr_deny)
{
$allowed = true;
if (count($arr_allow)) {
// only allow these addresses
$allowed = false;
foreach ($arr_allow as $allow) {
if (false !== strpos($allow, '/')) {
// CIDR notation
if (QuickBooks_Utilities::_checkCIDR($remoteaddr, $allow)) {
$allowed = true;
break;
}
} else {
if (ereg('^[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}$', $allow)) {
// IPv4 address
if ($remoteaddr == $allow) {
$allowed = true;
break;
}
}
}
}
if (!$allowed) {
return false;
}
}
if (count($arr_deny)) {
// do *not* allow these addresses
foreach ($arr_deny as $deny) {
if (false !== strpos($deny, '/')) {
// CIDR notation
if (QuickBooks_Utilities::_checkCIDR($remoteaddr, $deny)) {
return false;
}
} else {
if (ereg('^[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}$', $deny)) {
// IPv4 address
if ($remoteaddr == $deny) {
return false;
}
}
}
}
}
return $allowed;
}
