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<?php
/**
* Pimcore
*
* This source file is available under two different licenses:
* - GNU General Public License version 3 (GPLv3)
* - Pimcore Enterprise License (PEL)
* Full copyright and license information is available in
* LICENSE.md which is distributed with this source code.
*
* @copyright Copyright (c) Pimcore GmbH (http://www.pimcore.org)
* @license http://www.pimcore.org/license GPLv3 and PEL
*/
namespace Pimcore\Bundle\CoreBundle\EventListener\Frontend;
use Pimcore\Bundle\CoreBundle\EventListener\Traits\PimcoreContextAwareTrait;
use Pimcore\Cache;
use Pimcore\Cache\FullPage\SessionStatus;
use Pimcore\Config;
use Pimcore\Event\Cache\FullPage\CacheResponseEvent;
use Pimcore\Event\Cache\FullPage\PrepareResponseEvent;
use Pimcore\Event\FullPageCacheEvents;
use Pimcore\Http\Request\Resolver\PimcoreContextResolver;
use Pimcore\Logger;
use Pimcore\Targeting\VisitorInfoStorageInterface;
use Pimcore\Tool;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\HttpFoundation\BinaryFileResponse;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\StreamedResponse;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\HttpKernel\Event\KernelEvent;
class FullPageCacheListener
{
use PimcoreContextAwareTrait;
/**
* @var VisitorInfoStorageInterface
*/
private $visitorInfoStorage;
/**
* @var SessionStatus
*/
private $sessionStatus;
/**
* @var EventDispatcherInterface
*/
private $eventDispatcher;
/**
* @var bool
*/
protected $enabled = true;
/**
* @var bool
*/
protected $stopResponsePropagation = false;
/**
* @var null|int
*/
protected $lifetime = null;
/**
* @var bool
*/
protected $addExpireHeader = true;
/**
* @var string|null
*/
protected $disableReason;
/**
* @var string
*/
protected $defaultCacheKey;
/**
* @var Config
*/
protected $config;
public function __construct(
VisitorInfoStorageInterface $visitorInfoStorage,
SessionStatus $sessionStatus,
EventDispatcherInterface $eventDispatcher,
Config $config
) {
$this->visitorInfoStorage = $visitorInfoStorage;
$this->sessionStatus = $sessionStatus;
$this->eventDispatcher = $eventDispatcher;
$this->config = $config;
}
/**
* @param string|null $reason
*
* @return bool
*/
public function disable($reason = null)
{
if ($reason) {
$this->disableReason = $reason;
}
$this->enabled = false;
return true;
}
/**
* @return bool
*/
public function enable()
{
$this->enabled = true;
return true;
}
/**
* @return bool
*/
public function isEnabled()
{
return $this->enabled;
}
/**
* @param int|null $lifetime
*
* @return $this
*/
public function setLifetime($lifetime)
{
$this->lifetime = $lifetime;
return $this;
}
/**
* @return int|null
*/
public function getLifetime()
{
return $this->lifetime;
}
public function disableExpireHeader()
{
$this->addExpireHeader = false;
}
public function enableExpireHeader()
{
$this->addExpireHeader = true;
}
/**
* @param GetResponseEvent $event
*/
public function onKernelRequest(GetResponseEvent $event)
{
$request = $event->getRequest();
if (!$event->isMasterRequest()) {
return;
}
if (!$this->matchesPimcoreContext($request, PimcoreContextResolver::CONTEXT_DEFAULT)) {
return;
}
if (!\Pimcore\Tool::useFrontendOutputFilters()) {
return;
}
$requestUri = $request->getRequestUri();
$excludePatterns = [];
// only enable GET method
if (!$request->isMethodCacheable()) {
$this->disable();
return;
}
// disable the output-cache if browser wants the most recent version
// unfortunately only Chrome + Firefox if not using SSL
if (!$request->isSecure()) {
if (isset($_SERVER['HTTP_CACHE_CONTROL']) && $_SERVER['HTTP_CACHE_CONTROL'] === 'no-cache') {
$this->disable('HTTP Header Cache-Control: no-cache was sent');
return;
}
if (isset($_SERVER['HTTP_PRAGMA']) && $_SERVER['HTTP_PRAGMA'] === 'no-cache') {
$this->disable('HTTP Header Pragma: no-cache was sent');
return;
}
}
try {
if ($conf = $this->config['full_page_cache']) {
if (empty($conf['enabled'])) {
$this->disable();
return;
}
if (\Pimcore::inDebugMode()) {
$this->disable('Debug flag DISABLE_FULL_PAGE_CACHE is enabled');
return;
}
if (!empty($conf['lifetime'])) {
$this->setLifetime((int) $conf['lifetime']);
}
if (!empty($conf['exclude_patterns'])) {
$confExcludePatterns = explode(',', $conf['exclude_patterns']);
if (!empty($confExcludePatterns)) {
$excludePatterns = $confExcludePatterns;
}
}
if (!empty($conf['exclude_cookie'])) {
$cookies = explode(',', strval($conf['exclude_cookie']));
foreach ($cookies as $cookie) {
if (!empty($cookie) && isset($_COOKIE[trim($cookie)])) {
$this->disable('exclude cookie in system-settings matches');
return;
}
}
}
// output-cache is always disabled when logged in at the admin ui
if (null !== $pimcoreUser = Tool\Authentication::authenticateSession($request)) {
$this->disable('backend user is logged in');
return;
}
} else {
$this->disable();
return;
}
} catch (\Exception $e) {
Logger::error($e);
$this->disable('ERROR: Exception (see log files in /var/logs)');
return;
}
foreach ($excludePatterns as $pattern) {
if (@preg_match($pattern, $requestUri)) {
$this->disable('exclude path pattern in system-settings matches');
return;
}
}
// check if targeting matched anything and disable cache
if ($this->disabledByTargeting()) {
$this->disable('Targeting matched rules/target groups');
return;
}
$deviceDetector = Tool\DeviceDetector::getInstance();
$device = $deviceDetector->getDevice();
$deviceDetector->setWasUsed(false);
$appendKey = '';
// this is for example for the image-data-uri plugin
if (isset($_REQUEST['pimcore_cache_tag_suffix'])) {
$tags = $_REQUEST['pimcore_cache_tag_suffix'];
if (is_array($tags)) {
$appendKey = '_' . implode('_', $tags);
}
}
if (Tool\Frontend::hasWebpSupport()) {
$appendKey .= 'webp';
}
if ($request->isXmlHttpRequest()) {
$appendKey .= 'xhr';
}
$appendKey .= $request->getMethod();
$this->defaultCacheKey = 'output_' . md5(\Pimcore\Tool::getHostname() . $requestUri . $appendKey);
$cacheKeys = [
$this->defaultCacheKey . '_' . $device,
$this->defaultCacheKey,
];
$cacheKey = null;
$cacheItem = null;
foreach ($cacheKeys as $cacheKey) {
$cacheItem = Cache::load($cacheKey);
if ($cacheItem) {
break;
}
}
if ($cacheItem) {
/** @var Response $response */
$response = $cacheItem;
$response->headers->set('X-Pimcore-Output-Cache-Tag', $cacheKey, true);
$cacheItemDate = strtotime($response->headers->get('X-Pimcore-Cache-Date'));
$response->headers->set('Age', (time() - $cacheItemDate));
$event->setResponse($response);
$this->stopResponsePropagation = true;
}
}
/**
* @param KernelEvent $event
*/
public function stopPropagationCheck(KernelEvent $event)
{
if ($this->stopResponsePropagation) {
$event->stopPropagation();
}
}
/**
* @param FilterResponseEvent $event
*/
public function onKernelResponse(FilterResponseEvent $event)
{
if (!$event->isMasterRequest()) {
return;
}
$request = $event->getRequest();
if (!\Pimcore\Tool::isFrontend() || \Pimcore\Tool::isFrontendRequestByAdmin($request)) {
return;
}
if (!$this->matchesPimcoreContext($request, PimcoreContextResolver::CONTEXT_DEFAULT)) {
return;
}
$response = $event->getResponse();
if (!$response) {
return;
}
if (!$this->responseCanBeCached($response)) {
$this->disable('Response can\'t be cached');
}
if ($this->enabled && $this->sessionStatus->isDisabledBySession($request)) {
$this->disable('Session in use');
}
if ($this->disableReason) {
$response->headers->set('X-Pimcore-Output-Cache-Disable-Reason', $this->disableReason, true);
}
if ($this->enabled && $response->getStatusCode() == 200 && $this->defaultCacheKey) {
try {
if ($this->lifetime && $this->addExpireHeader) {
// add cache control for proxies and http-caches like varnish, ...
$response->headers->set('Cache-Control', 'public, max-age=' . $this->lifetime, true);
// add expire header
$date = new \DateTime('now');
$date->add(new \DateInterval('PT' . $this->lifetime . 'S'));
$response->headers->set('Expires', $date->format(\DateTime::RFC1123), true);
}
$now = new \DateTime('now');
$response->headers->set('X-Pimcore-Cache-Date', $now->format(\DateTime::ISO8601));
$cacheKey = $this->defaultCacheKey;
$deviceDetector = Tool\DeviceDetector::getInstance();
if ($deviceDetector->wasUsed()) {
$cacheKey .= '_' . $deviceDetector->getDevice();
}
$event = new PrepareResponseEvent($request, $response);
$this->eventDispatcher->dispatch(FullPageCacheEvents::PREPARE_RESPONSE, $event);
$cacheItem = $event->getResponse();
$tags = ['output'];
if ($this->lifetime) {
$tags = ['output_lifetime'];
}
Cache::save($cacheItem, $cacheKey, $tags, $this->lifetime, 1000, true);
} catch (\Exception $e) {
Logger::error($e);
return;
}
} else {
// output-cache was disabled, add "output" as cleared tag to ensure that no other "output" tagged elements
// like the inc and snippet cache get into the cache
Cache::addIgnoredTagOnSave('output_inline');
}
}
private function responseCanBeCached(Response $response): bool
{
$cache = true;
// do not cache common responses
if ($response instanceof BinaryFileResponse) {
$cache = false;
}
if ($response instanceof StreamedResponse) {
$cache = false;
}
// fire an event to allow full customozations
$event = new CacheResponseEvent($response, $cache);
$this->eventDispatcher->dispatch(FullPageCacheEvents::CACHE_RESPONSE, $event);
return $event->getCache();
}
private function disabledByTargeting(): bool
{
if (!$this->visitorInfoStorage->hasVisitorInfo()) {
return false;
}
$visitorInfo = $this->visitorInfoStorage->getVisitorInfo();
if (!empty($visitorInfo->getMatchingTargetingRules())) {
return true;
}
if (!empty($visitorInfo->getTargetGroupAssignments())) {
return true;
}
return false;
}
}

vendor/pimcore/pimcore/bundles/CoreBundle/EventListener/Frontend/FullPageCacheListener.php line 335