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MinifySubscriber.php
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MinifySubscriber.php
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<?php
namespace Frosh\Performance\Subscriber;
use Shopware\Core\System\SystemConfig\SystemConfigService;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
use Symfony\Component\HttpKernel\KernelEvents;
class MinifySubscriber implements EventSubscriberInterface
{
/**
* @var SystemConfigService
*/
private $systemConfigService;
public function __construct(SystemConfigService $systemConfigService)
{
$this->systemConfigService = $systemConfigService;
}
public static function getSubscribedEvents()
{
return [
KernelEvents::RESPONSE => 'onKernelResponse',
];
}
public function onKernelResponse(FilterResponseEvent $event)
{
if ($event->getResponse()->headers->get('content-type') !== null) {
return;
}
if (!$this->systemConfigService->get('FroshPlatformPerformance.config.enableMinify')) {
return;
}
$content = $event->getResponse()->getContent();
$content = preg_replace('#(?ix)(?>[^\S ]\s*|\s{2,})(?=(?:(?:[^<]++|<(?!/?(?:textarea|pre|script)\b))*+)(?:<(?>textarea|pre|script)\b|\z))#', ' ', $content);
$event->getResponse()->setContent($content);
}
}