Ajax hide controller from access.

[eluser]Unknown[/eluser]
I have created a controller called ajax and within this have various functions to deal with ajax calls (index.php/ajax/getLogo) this is all working.

What would be the best way to stop access to this controller unless the request is coming from the ajax call?

[eluser]eoinmcg[/eluser]
The way I usually handle ajax is to extend Controller with MY_Controller.php and add this method:\

Code:

function _is_ajax()
    {
        return (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && ($_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest'));
    }

then in your ajax controller you can check like this

Code:

function ajax()
    {
        if(!$this->_is_ajax())
        {
            die('Not an Ajax request');
        }

        //rest of code goes here

    }

[eluser]Unknown[/eluser]
Thanks for the pointer. Works perfectly :-)