/**
* @ApiDoc(
* section="File Manager",
* description="Displays a (complete) image (with cache-headers)"
* )
*
* @Rest\QueryParam(name="path", requirements=".+", strict=true, description="The file path or its ID")
*
* @Rest\Get("/admin/file/image")
*
* @param ParamFetcher $paramFetcher
* @return Response
*/
public function showImageAction(ParamFetcher $paramFetcher)
{
$path = $paramFetcher->get('path');
if (is_numeric($path)) {
$path = $this->webFilesystem->getPath($path);
}
$this->checkAccess($path, ACL::MODE_VIEW);
$file = $this->webFilesystem->getFile($path);
if ($file->isDir()) {
return;
}
$ifModifiedSince = $this->pageStack->getRequest()->headers->get('If-Modified-Since');
if (isset($ifModifiedSince) && strtotime($ifModifiedSince) == $file->getModifiedTime()) {
// Client's cache IS current, so we just respond '304 Not Modified'.
$response = new Response();
$response->setStatusCode(304);
$response->headers->set('Last-Modified', gmdate('D, d M Y H:i:s', $file->getModifiedTime()) . ' GMT');
return $response;
}
$content = $this->webFilesystem->read($path);
$image = \PHPImageWorkshop\ImageWorkshop::initFromString($content);
$result = $image->getResult();
$size = new FileSize();
$size->setHandleFromBinary($content);
$expires = 3600;
//1 h
$response = new Response();
$response->headers->set('Content-Type', 'png' == $size->getType() ? 'image/png' : 'image/jpeg');
$response->headers->set('Pragma', 'public');
$response->headers->set('Cache-Control', 'max-age=' . $expires);
$response->headers->set('Last-Modified', gmdate('D, d M Y H:i:s', $file->getModifiedTime()) . ' GMT');
$response->headers->set('Expires', gmdate('D, d M Y H:i:s', time() + $expires) . ' GMT');
ob_start();
if ('png' === $size->getType()) {
imagepng($result, null, 3);
} else {
imagejpeg($result, null, 100);
}
$response->setContent(ob_get_contents());
ob_end_clean();
return $response;
}
