/**
* Resizes an image
*
* @return Response
*
* @throws EntityNotFoundException Requested image does not exist
*/
public function resizeAction()
{
$request = $this->requestStack->getCurrentRequest();
$id = $request->get('id');
/**
* We retrieve image given its id
*/
$image = $this->imageRepository->find($id);
if (!$image instanceof ImageInterface) {
throw new EntityNotFoundException($this->imageRepository->getClassName());
}
$response = new Response();
$height = $request->get('height');
$width = $request->get('width');
$type = $request->get('type');
$response->setEtag($this->imageEtagTransformer->transform($image, $height, $width, $type))->setLastModified($image->getUpdatedAt())->setStatusCode(304)->setPublic();
/**
* If the object has not been modified, we return the response.
* Symfony will automatically put a 304 status in the response
* in that case
*/
if ($response->isNotModified($request)) {
return $response;
}
$image = $this->imageManager->resize($image, $height, $width, $type);
$imageData = $image->getContent();
$response->setStatusCode(200)->setMaxAge($this->maxAge)->setSharedMaxAge($this->sharedMaxAge)->setContent($imageData);
$response->headers->add(array('Content-Type' => $image->getContentType()));
return $response;
}
/**
* Create new response given a request and an image.
*
* Fill some data to this response given some Image properties and check if
* created Response has changed.
*
* @param Request $request Request
* @param ImageInterface $image Image
*
* @return Response Created response
*/
private function buildResponseFromImage(Request $request, ImageInterface $image)
{
$response = new Response();
$height = $request->get('height');
$width = $request->get('width');
$type = $request->get('type');
$response->setEtag($this->imageEtagTransformer->transform($image, $height, $width, $type))->setLastModified($image->getUpdatedAt())->setPublic();
/**
* If the object has not been modified, we return the response.
* Symfony will automatically put a 304 status in the response
* in that case
*/
if ($response->isNotModified($request)) {
return $response->setStatusCode(304);
}
$image = $this->imageManager->resize($image, $height, $width, $type);
$imageData = $image->getContent();
$response->setStatusCode(200)->setMaxAge($this->maxAge)->setSharedMaxAge($this->sharedMaxAge)->setContent($imageData);
$response->headers->add(['Content-Type' => $image->getContentType()]);
return $response;
}
