Building the Back End: Part 1 - Realtime Web Apps: With HTML5 WebSocket, PHP, and jQuery - page 168

abstract class Controller
{
public $actions = array(),
$model;
protected static $nonce = NULL;
/**
* Initializes the view
*
* @param $options array Options for the view
* @return void
*/
public function __construct( $options )
{
if (!is_array($options)) {
throw new Exception("No options were supplied for the room.");
}
}
/**
* Generates a nonce that helps prevent XSS and duplicate submissions
*
* @return string The generated nonce
*/
protected function generate_nonce( )
{
// TODO: Add the actual nonce generation script
return "tempnonce";
}
/**
* Performs basic input sanitization on a given string
*
* @param $dirty string The string to be sanitized
* @return string The sanitized string
*/
protected function sanitize( $dirty )
{
return htmlentities(strip_tags($dirty), ENT_QUOTES);
}
/**
* Sets the title for the view
*
* @return string The text to be used in the <title> tag
*/
abstract public function get_title( );