/**
* Adds cache headers to the response.
*
* Called via a signal triggered by the MVC Dispatcher
*
* @param RequestInterface $request
* @param ResponseInterface $response
* @param ControllerInterface $controller
* @return void
*/
public function addHeaders(RequestInterface $request, ResponseInterface $response, ControllerInterface $controller)
{
if (isset($this->settings['cacheHeaders']['disabled']) && $this->settings['cacheHeaders']['disabled'] === TRUE) {
$this->logger->log(sprintf('Varnish cache headers disabled (see configuration setting MOC.Varnish.cacheHeaders.disabled)'), LOG_DEBUG);
return;
}
if (!$response instanceof Response || !$controller instanceof NodeController) {
return;
}
$arguments = $controller->getControllerContext()->getArguments();
if (!$arguments->hasArgument('node')) {
return;
}
$node = $arguments->getArgument('node')->getValue();
if (!$node instanceof NodeInterface) {
return;
}
if ($node->getContext()->getWorkspaceName() !== 'live') {
return;
}
if ($node->hasProperty('disableVarnishCache') && $node->getProperty('disableVarnishCache') === TRUE) {
$this->logger->log(sprintf('Varnish cache headers skipped due to property "disableVarnishCache" for node "%s" (%s)', $node->getLabel(), $node->getPath()), LOG_DEBUG);
return;
}
if ($this->contentCacheAspect->isEvaluatedUncached()) {
$this->logger->log(sprintf('Varnish cache disabled due to uncachable content for node "%s" (%s)', $node->getLabel(), $node->getPath()), LOG_DEBUG);
$response->getHeaders()->setCacheControlDirective('no-cache');
} else {
list($tags, $cacheLifetime) = $this->getCacheTagsAndLifetime();
if (count($tags) > 0) {
$response->setHeader('X-Cache-Tags', implode(',', $tags));
}
$response->setHeader('X-Site', $this->tokenStorage->getToken());
$nodeLifetime = $node->getProperty('cacheTimeToLive');
if ($nodeLifetime === '' || $nodeLifetime === NULL) {
$defaultLifetime = isset($this->settings['cacheHeaders']['defaultSharedMaximumAge']) ? $this->settings['cacheHeaders']['defaultSharedMaximumAge'] : NULL;
$timeToLive = $defaultLifetime;
if ($defaultLifetime === NULL) {
$timeToLive = $cacheLifetime;
} elseif ($cacheLifetime !== NULL) {
$timeToLive = min($defaultLifetime, $cacheLifetime);
}
} else {
$timeToLive = $nodeLifetime;
}
if ($timeToLive !== NULL) {
$response->setSharedMaximumAge(intval($timeToLive));
$this->logger->log(sprintf('Varnish cache enabled for node "%s" (%s) with max-age "%u"', $node->getLabel(), $node->getPath(), $timeToLive), LOG_DEBUG);
} else {
$this->logger->log(sprintf('Varnish cache headers not sent for node "%s" (%s) due to no max-age', $node->getLabel(), $node->getPath()), LOG_DEBUG);
}
}
}
/**
* Adds cache headers to the response.
*
* Called via a signal triggered by the MVC Dispatcher
*
* @param RequestInterface $request
* @param ResponseInterface $response
* @param ControllerInterface $controller
* @return void
*/
public function addHeaders(RequestInterface $request, ResponseInterface $response, ControllerInterface $controller)
{
if (!$response instanceof Response || !$controller instanceof NodeController) {
return;
}
$arguments = $controller->getControllerContext()->getArguments();
if (!$arguments->hasArgument('node')) {
return;
}
$node = $arguments->getArgument('node')->getValue();
if (!$node instanceof NodeInterface) {
return;
}
if ($node->getContext()->getWorkspaceName() !== 'live') {
return;
}
if ($node->hasProperty('disableVarnishCache') && $node->getProperty('disableVarnishCache') === TRUE) {
return;
}
if ($this->contentCacheAspect->isEvaluatedUncached()) {
$response->getHeaders()->setCacheControlDirective('no-cache');
} else {
list($tags, $cacheLifetime) = $this->getCacheTagsAndLifetime();
if (count($tags) > 0) {
$response->setHeader('X-Cache-Tags', implode(',', $tags));
}
$response->setHeader('X-Site', $this->tokenStorage->getToken());
$nodeLifetime = $node->getProperty('cacheTimeToLive');
if ($nodeLifetime === '' || $nodeLifetime === NULL) {
$defaultLifetime = $this->settings['cacheHeaders']['defaultSharedMaximumAge'];
$timeToLive = $defaultLifetime;
if ($defaultLifetime === NULL) {
$timeToLive = $cacheLifetime;
} elseif ($cacheLifetime !== NULL) {
$timeToLive = min($defaultLifetime, $cacheLifetime);
}
} else {
$timeToLive = $nodeLifetime;
}
if ($timeToLive !== NULL) {
$response->setSharedMaximumAge(intval($timeToLive));
}
}
}