/**
* Finds other resources which are referring to the same resource data and filename
*
* @param PersistentResource $resource The resource used for finding similar resources
* @return QueryResultInterface The result, including the given resource
*/
public function findSimilarResources(PersistentResource $resource)
{
$query = $this->createQuery();
$query->matching($query->logicalAnd($query->equals('sha1', $resource->getSha1()), $query->equals('filename', $resource->getFilename())));
return $query->execute();
}
/**
* @param PersistentResource $originalResource
* @param array $adjustments
* @return array resource, width, height as keys
* @throws ImageFileException
* @throws InvalidConfigurationException
* @throws Exception
*/
public function processImage(PersistentResource $originalResource, array $adjustments)
{
$additionalOptions = array();
$adjustmentsApplied = false;
// TODO: Special handling for SVG should be refactored at a later point.
if ($originalResource->getMediaType() === 'image/svg+xml') {
$originalResourceStream = $originalResource->getStream();
$resource = $this->resourceManager->importResource($originalResourceStream, $originalResource->getCollectionName());
fclose($originalResourceStream);
$resource->setFilename($originalResource->getFilename());
return ['width' => null, 'height' => null, 'resource' => $resource];
}
$resourceUri = $originalResource->createTemporaryLocalCopy();
$resultingFileExtension = $originalResource->getFileExtension();
$transformedImageTemporaryPathAndFilename = $this->environment->getPathToTemporaryDirectory() . uniqid('ProcessedImage-') . '.' . $resultingFileExtension;
if (!file_exists($resourceUri)) {
throw new ImageFileException(sprintf('An error occurred while transforming an image: the resource data of the original image does not exist (%s, %s).', $originalResource->getSha1(), $resourceUri), 1374848224);
}
$imagineImage = $this->imagineService->open($resourceUri);
$convertCMYKToRGB = $this->getOptionsMergedWithDefaults()['convertCMYKToRGB'];
if ($convertCMYKToRGB && $imagineImage->palette() instanceof CMYK) {
$imagineImage->usePalette(new RGB());
}
if ($this->imagineService instanceof Imagine && $originalResource->getFileExtension() === 'gif' && $this->isAnimatedGif(file_get_contents($resourceUri)) === true) {
$imagineImage->layers()->coalesce();
$layers = $imagineImage->layers();
$newLayers = array();
foreach ($layers as $index => $imagineFrame) {
$imagineFrame = $this->applyAdjustments($imagineFrame, $adjustments, $adjustmentsApplied);
$newLayers[] = $imagineFrame;
}
$imagineImage = array_shift($newLayers);
$layers = $imagineImage->layers();
foreach ($newLayers as $imagineFrame) {
$layers->add($imagineFrame);
}
$additionalOptions['animated'] = true;
} else {
$imagineImage = $this->applyAdjustments($imagineImage, $adjustments, $adjustmentsApplied);
}
if ($adjustmentsApplied === true) {
$imagineImage->save($transformedImageTemporaryPathAndFilename, $this->getOptionsMergedWithDefaults($additionalOptions));
$imageSize = $imagineImage->getSize();
// TODO: In the future the collectionName of the new resource should be configurable.
$resource = $this->resourceManager->importResource($transformedImageTemporaryPathAndFilename, $originalResource->getCollectionName());
if ($resource === false) {
throw new ImageFileException('An error occurred while importing a generated image file as a resource.', 1413562208);
}
unlink($transformedImageTemporaryPathAndFilename);
$pathInfo = UnicodeFunctions::pathinfo($originalResource->getFilename());
$resource->setFilename(sprintf('%s-%ux%u.%s', $pathInfo['filename'], $imageSize->getWidth(), $imageSize->getHeight(), $pathInfo['extension']));
} else {
$originalResourceStream = $originalResource->getStream();
$resource = $this->resourceManager->importResource($originalResourceStream, $originalResource->getCollectionName());
fclose($originalResourceStream);
$resource->setFilename($originalResource->getFilename());
$imageSize = $this->getImageSize($originalResource);
$imageSize = new Box($imageSize['width'], $imageSize['height']);
}
$this->imageSizeCache->set($resource->getCacheEntryIdentifier(), array('width' => $imageSize->getWidth(), 'height' => $imageSize->getHeight()));
$result = array('width' => $imageSize->getWidth(), 'height' => $imageSize->getHeight(), 'resource' => $resource);
return $result;
}
/**
* Deletes the storage data related to the given PersistentResource object
*
* @param PersistentResource $resource The PersistentResource to delete the storage data of
* @return boolean TRUE if removal was successful
*/
public function deleteResource(PersistentResource $resource)
{
$pathAndFilename = $this->getStoragePathAndFilenameByHash($resource->getSha1());
if (!file_exists($pathAndFilename)) {
return true;
}
if (unlink($pathAndFilename) === false) {
return false;
}
Files::removeEmptyDirectoriesOnPath(dirname($pathAndFilename));
return true;
}
/**
* Deletes the given PersistentResource from the ResourceRepository and, if the storage data is no longer used in another
* PersistentResource object, also deletes the data from the storage.
*
* This method will also remove the PersistentResource object from the (internal) ResourceRepository.
*
* @param PersistentResource $resource The resource to delete
* @param boolean $unpublishResource If the resource should be unpublished before deleting it from the storage
* @return boolean true if the resource was deleted, otherwise FALSE
* @api
*/
public function deleteResource(PersistentResource $resource, $unpublishResource = true)
{
$this->initialize();
$collectionName = $resource->getCollectionName();
$result = $this->resourceRepository->findBySha1($resource->getSha1());
if (count($result) > 1) {
$this->systemLogger->log(sprintf('Not removing storage data of resource %s (%s) because it is still in use by %s other PersistentResource object(s).', $resource->getFilename(), $resource->getSha1(), count($result) - 1), LOG_DEBUG);
} else {
if (!isset($this->collections[$collectionName])) {
$this->systemLogger->log(sprintf('Could not remove storage data of resource %s (%s) because it refers to the unknown collection "%s".', $resource->getFilename(), $resource->getSha1(), $collectionName), LOG_WARNING);
return false;
}
$storage = $this->collections[$collectionName]->getStorage();
if (!$storage instanceof WritableStorageInterface) {
$this->systemLogger->log(sprintf('Could not remove storage data of resource %s (%s) because it its collection "%s" is read-only.', $resource->getFilename(), $resource->getSha1(), $collectionName), LOG_WARNING);
return false;
}
try {
$storage->deleteResource($resource);
} catch (\Exception $exception) {
$this->systemLogger->log(sprintf('Could not remove storage data of resource %s (%s): %s.', $resource->getFilename(), $resource->getSha1(), $exception->getMessage()), LOG_WARNING);
return false;
}
if ($unpublishResource) {
/** @var TargetInterface $target */
$target = $this->collections[$collectionName]->getTarget();
$target->unpublishResource($resource);
$this->systemLogger->log(sprintf('Removed storage data and unpublished resource %s (%s) because it not used by any other PersistentResource object.', $resource->getFilename(), $resource->getSha1()), LOG_DEBUG);
} else {
$this->systemLogger->log(sprintf('Removed storage data of resource %s (%s) because it not used by any other PersistentResource object.', $resource->getFilename(), $resource->getSha1()), LOG_DEBUG);
}
}
$resource->setDeleted();
$this->resourceRepository->remove($resource);
return true;
}
/**
* Returns a stream handle which can be used internally to open / copy the given resource
* stored in this storage.
*
* @param PersistentResource $resource The resource stored in this storage
* @return resource | boolean The resource stream or FALSE if the stream could not be obtained
*/
public function getStreamByResource(PersistentResource $resource)
{
$pathAndFilename = $this->getStoragePathAndFilenameByHash($resource->getSha1());
return file_exists($pathAndFilename) ? fopen($pathAndFilename, 'rb') : false;
}
