/**
* This action applies a given filter to a given image, saves the image and
* outputs it to the browser at the same time
*
* @param string $path
* @param string $filter
*
* @return Response
*
* @throws Exception
*/
public function filterAction($path, $filter)
{
$baseUrl = $this->request->getBaseUrl();
try {
try {
$cachedPath = $this->cacheManager->cacheImage($baseUrl, $path, $filter);
} catch (RuntimeException $e) {
if (!isset($this->notFoundImages[$filter])) {
throw $e;
}
$path = $this->notFoundImages[$filter];
$cachedPath = $this->cacheManager->cacheImage($baseUrl, $path, $filter);
}
} catch (RouteNotFoundException $e) {
throw new NotFoundHttpException('Filter doesn\'t exist.');
}
// if cache path cannot be determined, return 404
if (null === $cachedPath) {
throw new NotFoundHttpException('Image doesn\'t exist');
}
try {
// Using File instead of Imagine::open(), because i.e. image/x-icon is not widely supported.
$file = new ImageFile($cachedPath, false);
// TODO: add more media headers
$headers = ['content-type' => $file->getMimeType(), 'content-length' => $file->getSize()];
$response = new Response($file->getContents(), 201, $headers);
// Cache
if (!($cacheType = $this->filterManager->getOption($filter, 'cache_type', false))) {
return $response;
}
$cacheType === 'public' ? $response->setPublic() : $response->setPrivate();
$cacheExpires = $this->filterManager->getOption($filter, 'cache_expires', '1 day');
$expirationDate = new DateTime('+' . $cacheExpires);
$maxAge = $expirationDate->format('U') - time();
if ($maxAge < 0) {
throw new InvalidArgumentException('Invalid cache expiration date');
}
$response->setExpires($expirationDate);
$response->setMaxAge($maxAge);
return $response;
} catch (Exception $e) {
throw $e;
}
}
/**
* This action applies a given filter to a given image, saves the image and
* outputs it to the browser at the same time
*
* @param string $path
* @param string $filter
*
* @return Response
*/
public function filter($path, $filter)
{
$cachedPath = $this->cacheManager->cacheImage($this->request->getBaseUrl(), $path, $filter);
// if cache path cannot be determined, return 404
if (null === $cachedPath) {
throw new NotFoundHttpException('Image doesn\'t exist');
}
ob_start();
try {
$format = $this->filterManager->getOption($filter, "format", "png");
$this->imagine->open($cachedPath)->show($format);
$type = 'image/' . $format;
$length = ob_get_length();
$content = ob_get_clean();
// TODO: add more media headers
$response = new Response($content, 201, array('content-type' => $type, 'content-length' => $length));
// Cache
$cacheType = $this->filterManager->getOption($filter, "cache_type", false);
if (false == $cacheType) {
return $response;
}
$cacheType === "public" ? $response->setPublic() : $response->setPrivate();
$cacheExpires = $this->filterManager->getOption($filter, "cache_expires", "1 day");
$expirationDate = new \DateTime("+" . $cacheExpires);
$maxAge = $expirationDate->format("U") - time();
if ($maxAge < 0) {
throw new \InvalidArgumentException("Invalid cache expiration date");
}
$response->setExpires($expirationDate);
$response->setMaxAge($maxAge);
return $response;
} catch (\Exception $e) {
ob_end_clean();
throw $e;
}
}