CakePHP HTTPS Secure payment form

Question

Using CakePHP 1.3 we have a booking system for hotel rooms. A check-availability form should bring the user to a secure payment page (https://secure.domain.com/bookings/payment)

Answer 1

I used the example from http://techno-geeks.org/2009/03/using-the-security-component-in-cakephp-for-ssl/ but found it problematic. I ended up adding the following to my app_controller.php.

The code below redirects HTTPS to www.example.com and HTTP to example.com. If a user is logged in (see $loggedUser), it forces HTTPS for every connection.

// Pages requiring a secure connection.
$secureItems = array();

// beforeFilter
function beforeFilter() {
    // Your logic...    
    $this->__checkSSL();
}

/**
 * Check SSL connection.
 */
function __checkSSL() {
    /** Make sure we are secure when we need to be! **/
    if (empty($this->loggedUser)) {
        if (in_array($this->action, $this->secureItems) && !env('HTTPS')) {
            $this->__forceSSL();
        } 

        if (!in_array($this->action, $this->secureItems) && env('HTTPS')) {
            $this->__unforceSSL();
        }
    } else {
        // Always force HTTPS if user is logged in.
        if (!env('HTTPS')) {
            $this->__forceSSL();
        }
    }
}

/**
 * Redirect to a secure connection
 * @return unknown_type
 */
function __forceSSL() { 
    if (strstr(env('SERVER_NAME'), 'www.')) {
        $this->redirect('https://' . env('SERVER_NAME') . $this->here);
    } else {
        $this->redirect('https://www.' . env('SERVER_NAME') . $this->here); 
    }
}

/**
 * Redirect to an unsecure connection
 * @return unknown_type
 */
function __unforceSSL() {
    if (strstr(env('SERVER_NAME'), 'www.')) {
        $server = substr(env('SERVER_NAME'), 4);
        $this->redirect('http://' . $server . $this->here);
    } else {
        $this->redirect('http://' . env('SERVER_NAME') . $this->here);  
    }
}