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    <h3>Editing: SessionListener.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpKernel\EventListener;

use Symfony\Component\HttpFoundation\Session\SessionInterface;
use Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage;
use Symfony\Component\HttpKernel\Event\RequestEvent;

/**
 * Sets the session in the request.
 *
 * When the passed container contains a &quot;session_storage&quot; entry which
 * holds a NativeSessionStorage instance, the &quot;cookie_secure&quot; option
 * will be set to true whenever the current main request is secure.
 *
 * @author Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * @final
 */
class SessionListener extends AbstractSessionListener
{
    public function onKernelRequest(RequestEvent $event)
    {
        parent::onKernelRequest($event);

        if (!$event-&gt;isMainRequest() || (!$this-&gt;container-&gt;has('session') &amp;&amp; !$this-&gt;container-&gt;has('session_factory'))) {
            return;
        }

        if ($this-&gt;container-&gt;has('session_storage')
            &amp;&amp; ($storage = $this-&gt;container-&gt;get('session_storage')) instanceof NativeSessionStorage
            &amp;&amp; ($mainRequest = $this-&gt;container-&gt;get('request_stack')-&gt;getMainRequest())
            &amp;&amp; $mainRequest-&gt;isSecure()
        ) {
            $storage-&gt;setOptions(['cookie_secure' =&gt; true]);
        }
    }

    protected function getSession(): ?SessionInterface
    {
        if ($this-&gt;container-&gt;has('session')) {
            return $this-&gt;container-&gt;get('session');
        }

        if ($this-&gt;container-&gt;has('session_factory')) {
            return $this-&gt;container-&gt;get('session_factory')-&gt;createSession();
        }

        return null;
    }
}
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