Returns the Media Type for this resource
| public getMediaType ( ) : string | ||
| 리턴 | string | The IANA Media Type |
/**
* @test
*/
public function getMediaTypeReturnsMediaTypeBasedOnFileExtension()
{
$resource = new PersistentResource();
$resource->setFilename('file.jpg');
$this->assertSame('image/jpeg', $resource->getMediaType());
$resource = new PersistentResource();
$resource->setFilename('file.zip');
$this->assertSame('application/zip', $resource->getMediaType());
$resource = new PersistentResource();
$resource->setFilename('file.someunknownextension');
$this->assertSame('application/octet-stream', $resource->getMediaType());
}
/**
* Get the size of a Flow PersistentResource that contains an image file.
*
* @param PersistentResource $resource
* @return array width and height as keys
* @throws ImageFileException
*/
public function getImageSize(PersistentResource $resource)
{
$cacheIdentifier = $resource->getCacheEntryIdentifier();
$imageSize = $this->imageSizeCache->get($cacheIdentifier);
if ($imageSize !== false) {
return $imageSize;
}
// TODO: Special handling for SVG should be refactored at a later point.
if ($resource->getMediaType() === 'image/svg+xml') {
$imageSize = ['width' => null, 'height' => null];
} else {
try {
$imagineImage = $this->imagineService->read($resource->getStream());
$sizeBox = $imagineImage->getSize();
$imageSize = array('width' => $sizeBox->getWidth(), 'height' => $sizeBox->getHeight());
} catch (\Exception $e) {
throw new ImageFileException(sprintf('The given resource was not an image file your choosen driver can open. The original error was: %s', $e->getMessage()), 1336662898);
}
}
$this->imageSizeCache->set($cacheIdentifier, $imageSize);
return $imageSize;
}
/**
* Returns the IANA media type of this asset
*
* @return string
*/
public function getMediaType()
{
return $this->resource->getMediaType();
}
/**
* Update the resource on an asset.
*
* @param AssetInterface $asset
* @param PersistentResource $resource
* @param array $options
* @throws InvalidArgumentValueException
* @return void
*/
public function updateAssetResourceAction(AssetInterface $asset, PersistentResource $resource, array $options = [])
{
$sourceMediaType = MediaTypes::parseMediaType($asset->getMediaType());
$replacementMediaType = MediaTypes::parseMediaType($resource->getMediaType());
// Prevent replacement of image, audio and video by a different mimetype because of possible rendering issues.
if (in_array($sourceMediaType['type'], ['image', 'audio', 'video']) && $sourceMediaType['type'] !== $replacementMediaType['type']) {
$this->addFlashMessage('Resources of type "%s" can only be replaced by a similar resource. Got type "%s"', '', Message::SEVERITY_WARNING, [$sourceMediaType['type'], $resource->getMediaType()], 1462308179);
$this->redirect('index');
}
parent::updateAssetResourceAction($asset, $resource, $options);
}
