Symfony P3P iFrame Cookie Support Response Listener

readme.md

For the Bundle for easy install see: https://github.com/Pulpmedia/P3PCookieBundle

ResponseListener.php

<?php

namespace Acme\DemoBundle\EventListener;

use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
 
class ResponseListener
{
    public function onKernelResponse(FilterResponseEvent $event)
    {
        $request = $event->getRequest();
 
        // only execute for text/html files
        if ($request->getRequestFormat() != 'html') {
             return;
        }
         
        // set the "P3P" header of the response
        $event->getResponse()->headers->set('P3P', 'CP="IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT"');
    }
}

services.xml

<?xml version="1.0" ?>

<container xmlns="http://symfony.com/schema/dic/services"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
    <services>
	    <service id="acme.filter_response_listener" class="Acme\DemoBundle\EventListener\ResponseListener">
	        <tag name="kernel.event_listener" event="kernel.response" method="onKernelResponse" />
	    </service>        
   </services>
</container>

services.yml

services:
    acme.filter_response_listener:
        class: Acme\DemoBundle\EventListener\ResponseListener
        tags:
            - { name: kernel.event_listener, event: kernel.response, method: onKernelResponse }