/**
* Returns a rendered view. If we find html behind the given cache
* it returns this directly. This is a couple os ms faster than `renderCached`
* since the template engine is never used when there's a valid cache.
*
* Example:
*
* return $this->renderFullCached('myCache', 'plugin1/default.tpl', function(){
* return array('items' => heavyDbQuery());
* });
*
* Note: The $data callable is only called if the cache needs to regenerate (when it has been
* invalidated or empty, or the view file changed).
*
* If the callable $data returns NULL, then this will return NULL, too, without entering
* the actual rendering process.
*
* You should use this method in your plugins instead of writing your own cache mechanism,
* because this method handles PageResponse merging. Means: If templates used in this
* $view are changing somehow the PageResponse ({{loadAsset('style.css')}} calls) then
* this information (diff to current PageResponse) is stored and restored when we found
* a html cache. The diff is beside the actual rendered HTML also stored in the cache
* to keep this possible.
*
* @param string $cacheKey
* @param string $view
* @param array|callable $data Pass the data as array or a data provider function.
* @param integer $lifeTime In seconds. Default is one hour/3600 seconds.
* @param bool $force Force to bypass the cache and always call $data. For debuggin purposes.
*
* @see method `render` to get more information.
*
* @return string
*/
public function renderFullCached($cacheKey, $view, $data = null, $lifeTime = null, $force = false)
{
$cache = $this->cacher->getDistributedCache($cacheKey);
$mTime = $this->getViewMTime($view);
if (!is_string($cache)) {
$cache = null;
} else {
$cache = @unserialize($cache);
}
if ($force || !$cache || !$cache['content'] || !is_array($cache) || $mTime != $cache['fileMTime']) {
$oldResponse = clone $this->pageStack->getPageResponse();
$data2 = $data;
if (is_callable($data)) {
$data2 = call_user_func($data, $view);
if (null === $data2) {
//the data callback returned NULL so this means
//we aren't the correct controller for this request
//or the request contains invalid input
return null;
}
}
$content = $this->templating->render($view, $data2);
$response = $this->pageStack->getPageResponse();
$diff = $oldResponse->diff($response);
$cache = array('content' => $content, 'fileMTime' => $mTime, 'responseDiff' => $diff);
$this->cacher->setDistributedCache($cacheKey, serialize($cache), $lifeTime ?: 3600);
} else {
if ($cache['responseDiff']) {
$this->pageStack->getPageResponse()->patch($cache['responseDiff']);
}
}
return $this->pageResponseFactory->createPluginResponse($cache['content']);
}
public function fixResponse(GetResponseForControllerResultEvent $event)
{
$data = $event->getControllerResult();
if ($data instanceof PluginResponseInterface) {
$response = $data;
} else {
$response = $this->pageResponseFactory->createPluginResponse($data);
}
$event->setResponse($response);
}
public function onKernelView(GetResponseForControllerResultEvent $event)
{
$data = $event->getControllerResult();
$request = $event->getRequest();
if (!$event->getRequest()->attributes->get('_jarves_is_plugin')) {
//we accept only plugin responses.
return;
}
$content = $request->attributes->get('_content');
if (null !== $data) {
if ($data instanceof PluginResponseInterface) {
$response = $data;
} else {
$response = $this->pageResponseFactory->createPluginResponse($data);
}
//it's required to place a PluginResponseInterface as response, so
//PluginResponseListener::onKernelResponse can correctly identify it
//and set it as response for this plugin content, so ContentTypes\TypePlugin
//can place the correct response at the correct position, without executing
//the plugin twice.
$event->setResponse($response);
} else {
//we hit a plugin route, but it has responsed with NULL
//this means it is not responsible for this route/slug.
//we need now to remove this plugin route from the route collection
//and fire again a sub request until all plugins on this page
//are handled. If no plugin is responsible for this url pattern
//and the main page route is also not responsible
//no response is set in the $event and a 404 is thrown by the HttpKernel.
$foundRoute = false;
$routes = $this->frontendRouteListener->getRoutes();
foreach ($routes as $idx => $route) {
/** @var \Symfony\Component\Routing\Route $route */
if ($content === $route->getDefault('_content')) {
//remove exactly only the current plugin that was hit in this sub request
$routes->remove($idx);
$foundRoute = true;
break;
}
}
if ($foundRoute) {
//we've removed the route and fire now again a sub request
$request = clone $this->pageStack->getRequest();
$request->attributes = new ParameterBag();
$response = $this->kernel->handle($request, HttpKernelInterface::SUB_REQUEST);
$event->setResponse($response);
}
//we do not need to restore routes in the frontendRouteListener, because
//it reload all routes on every master request
}
}
public function showAction()
{
return $this->pageResponseFactory->createFromRoute();
}
public function onKernelRequest(GetResponseEvent $event)
{
$request = $event->getRequest();
if (HttpKernelInterface::MASTER_REQUEST === $event->getRequestType()) {
//we need to reset all routes. They will anyway replaced by FrontendRouter::loadRoutes,
//but to prevent caching conflicts, when a user removes a plugin for example
//from a page, we need to know that without using actual caching.
$this->routes = new RouteCollection();
$this->urlMatcher->__construct($this->routes, $this->requestContext);
//prepare for new master request: clear the PageResponse object
$this->pageStack->setCurrentPage(null);
$this->pageStack->setCurrentDomain(null);
$this->pageStack->setPageResponse($this->pageResponseFactory->create());
$this->frontendRouter->setRequest($request);
$editorNodeId = (int) $this->pageStack->getRequest()->get('_jarves_editor_node');
$editorDomainId = (int) $this->pageStack->getRequest()->get('_jarves_editor_domain');
$domain = null;
if ($editorDomainId) {
$domain = $this->pageStack->getDomain($editorDomainId);
if (!$domain) {
//we haven't found any domain that is responsible for this request
return;
}
$this->pageStack->setCurrentDomain($domain);
}
if ($editorNodeId) {
//handle jarves content editor stuff
//access is later checked
if (!$editorNodeId && $domain) {
$editorNodeId = $domain->getStartnodeId();
}
$page = $this->pageStack->getPage($editorNodeId);
if (!$page || !$page->isRenderable()) {
//we haven't found any page that is responsible for this request
return;
}
if (!$domain) {
$domain = $this->pageStack->getDomain($page->getDomainId());
}
$this->pageStack->setCurrentPage($page);
$this->pageStack->setCurrentDomain($domain);
$request->attributes->set('_controller', 'jarves.page_controller:handleAction');
} else {
//regular frontend route search
//search domain
if (!$domain) {
$domain = $this->frontendRouter->searchDomain();
if (!$domain) {
//we haven't found any domain that is responsible for this request
return;
}
$this->pageStack->setCurrentDomain($domain);
}
//search page
$page = $this->frontendRouter->searchPage();
if (!$page || !$page->isRenderable()) {
//we haven't found any page that is responsible for this request
return;
}
$this->pageStack->setCurrentPage($page);
if ($response = $this->frontendRouter->loadRoutes($this->routes, $page)) {
//loadRoutes return in case of redirects and permissions a redirect or 404 response.
$event->setResponse($response);
return;
}
try {
//check routes in $this->route
parent::onKernelRequest($event);
} catch (MethodNotAllowedException $e) {
} catch (NotFoundHttpException $e) {
}
}
}
}
