/**
* Checks if client IP address is in the whitelist
* Useful to create simple IP access rules
*
* @param $whitelist array of IPv4 addresses
* @return true if client IP address is in the $allowed list
*/
function allowed_ip($whitelist)
{
if (php_sapi_name() == 'cli') {
return true;
}
$ip = IPv4_to_GeoIP(client_ip());
return match_ip($ip, $whitelist);
}
public function test2()
{
$allowed = array('192.168.0.1', '80.0.0.0/8', '240.0.0.0/8', '230.230.0.0/16', '220.220.220.0/24');
$this->assertEquals(match_ip('220.220.220.42', $allowed), true);
$this->assertEquals(match_ip('230.230.11.42', $allowed), true);
$this->assertEquals(match_ip('240.212.11.42', $allowed), true);
$this->assertEquals(match_ip('230.212.11.42', $allowed), false);
$this->assertEquals(match_ip('220.220.11.42', $allowed), false);
$this->assertEquals(match_ip('241.212.11.42', $allowed), false);
$this->assertEquals(match_ip('240.212.11.42.1', $allowed), false);
$this->assertEquals(match_ip('111.111.111.111/8', $allowed), false);
$this->assertEquals(match_ip('300.111.111.111', $allowed), false);
}
