Categories:Helpers | Categories:Helpers -> Community
IP Bouncer
This helper function, written by Sean Gates, allows you to easily restrict a controller, or method, by a visitor’s IP address.
This could easily be done in each controller, but I decided to write a small helper.
NOTE: The “if” statement also includes a check for the script being located in a subdomain path. This is for a “dev” and “staging” setup where the the dev and staging servers are subdomains of the main URL. This is specific to MediaTemple’s (dv) v3.0 servers using Plesk.
<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
/**
* Checks an ip address (and whether the server is dev or staging on a MediaTemple (dv) subdomain),
* prints a message, and ends page execution if the IP isn't allowed.
*
* Use it in the instantiation block of any controller to restrict the page, or in any method
* you want restricted.
*
* @author Sean Gates
* @link http://seangates.com
* @license GNU Public License (GPL)
*
* @access public
* @param string [$ip] valid IP address
*
* USAGE:
*
* class Home extends Controller {
*
* function Home()
* {
* parent::Controller();
*
* // bounce the person if they don't have the right IP address
* ip_bouncer($this->input->ip_address());
* }
*
* ...
* }
*
*/
if (! function_exists('ip_bouncer'))
{
function ip_bouncer($ip)
{
// restrict to these IP addresses
$ip_addresses = array('12.124.10.18');
// check if the ip is allowed, and whether we're on the dev or staging servers
if( !in_array($ip, $ip_addresses) && strstr(getcwd(),'/subdomains/') )
{
echo 'This is a restricted area. Move along ...';
exit();
}
}
}
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