Nelmio\SecurityBundle\EventListener\ForcedSslListener::onKernelRequest PHP Метод

    public function onKernelRequest(GetResponseEvent $e)
    {
        if (HttpKernelInterface::MASTER_REQUEST !== $e->getRequestType()) {
            return;
        }
        $request = $e->getRequest();
        // skip SSL & non-GET/HEAD requests
        if ($request->isSecure() || !$request->isMethodSafe()) {
            return;
        }
        // skip whitelisted URLs
        if ($this->whitelist && preg_match('{' . $this->whitelist . '}i', $request->getPathInfo() ?: '/')) {
            return;
        }
        // skip non-listed hosts
        if ($this->hosts && !preg_match('{' . $this->hosts . '}i', $request->getHost() ?: '/')) {
            return;
        }
        // redirect the rest to SSL
        $e->setResponse(new RedirectResponse('https://' . substr($request->getUri(), 7)));
    }