Completed
Pull Request — master (#1217)
by
unknown
01:31
created

DataManager::addLoader()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 4

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
c 0
b 0
f 0
dl 0
loc 4
rs 10
cc 1
nc 1
nop 2
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<?php
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/*
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 * This file is part of the `liip/LiipImagineBundle` project.
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 *
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 * (c) https://github.com/liip/LiipImagineBundle/graphs/contributors
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 *
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 * For the full copyright and license information, please view the LICENSE.md
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 * file that was distributed with this source code.
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 */
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namespace Liip\ImagineBundle\Imagine\Data;
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use Liip\ImagineBundle\Binary\BinaryInterface;
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use Liip\ImagineBundle\Binary\Loader\LoaderInterface;
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use Liip\ImagineBundle\Binary\MimeTypeGuesserInterface;
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use Liip\ImagineBundle\Exception\InvalidArgumentException;
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use Liip\ImagineBundle\Imagine\Filter\FilterConfiguration;
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use Liip\ImagineBundle\Model\Binary;
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use Symfony\Component\HttpFoundation\File\MimeType\ExtensionGuesserInterface as DeprecatedExtensionGuesserInterface;
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use Symfony\Component\Mime\MimeTypesInterface;
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class DataManager
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{
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    /**
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     * @var MimeTypeGuesserInterface
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     */
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    protected $mimeTypeGuesser;
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    /**
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     * @var DeprecatedExtensionGuesserInterface|MimeTypesInterface
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     */
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    protected $extensionGuesser;
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    /**
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     * @var FilterConfiguration
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     */
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    protected $filterConfig;
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    /**
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     * @var string|null
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     */
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    protected $defaultLoader;
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    /**
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     * @var string|null
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     */
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    protected $globalDefaultImage;
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    /**
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     * @var LoaderInterface[]
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     */
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    protected $loaders = [];
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    /**
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     * @param MimeTypeGuesserInterface                               $mimeTypeGuesser
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     * @param DeprecatedExtensionGuesserInterface|MimeTypesInterface $extensionGuesser
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     * @param FilterConfiguration                                    $filterConfig
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     * @param string                                                 $defaultLoader
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     * @param string                                                 $globalDefaultImage
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     */
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    public function __construct(
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        MimeTypeGuesserInterface $mimeTypeGuesser,
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        $extensionGuesser,
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        FilterConfiguration $filterConfig,
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        $defaultLoader = null,
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        $globalDefaultImage = null
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    ) {
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        if (!$extensionGuesser instanceof MimeTypesInterface && !$extensionGuesser instanceof DeprecatedExtensionGuesserInterface) {
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            throw new InvalidArgumentException('$extensionGuesser must be an instance of Symfony\Component\Mime\MimeTypesInterface or Symfony\Component\HttpFoundation\File\MimeType\ExtensionGuesserInterface');
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        }
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        if (interface_exists(MimeTypesInterface::class) && $extensionGuesser instanceof DeprecatedExtensionGuesserInterface) {
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            @trigger_error(sprintf('Passing a %s to "%s()" is deprecated since Symfony 4.3, pass a "%s" instead.', DeprecatedExtensionGuesserInterface::class, __METHOD__, MimeTypesInterface::class), E_USER_DEPRECATED);
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Security Best Practice introduced by
It seems like you do not handle an error condition here. This can introduce security issues, and is generally not recommended.

If you suppress an error, we recommend checking for the error condition explicitly:

// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
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        }
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        $this->mimeTypeGuesser = $mimeTypeGuesser;
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        $this->filterConfig = $filterConfig;
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        $this->defaultLoader = $defaultLoader;
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        $this->extensionGuesser = $extensionGuesser;
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        $this->globalDefaultImage = $globalDefaultImage;
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    }
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    /**
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     * Adds a loader to retrieve images for the given filter.
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     *
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     * @param string          $filter
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     * @param LoaderInterface $loader
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     */
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    public function addLoader($filter, LoaderInterface $loader)
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    {
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        $this->loaders[$filter] = $loader;
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    }
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    /**
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     * Returns a loader previously attached to the given filter.
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     *
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     * @param string $filter
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     *
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     * @throws \InvalidArgumentException
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     *
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     * @return LoaderInterface
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     */
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    public function getLoader($filter)
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    {
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        $config = $this->filterConfig->get($filter);
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        $loaderName = empty($config['data_loader']) ? $this->defaultLoader : $config['data_loader'];
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        if (!isset($this->loaders[$loaderName])) {
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            throw new \InvalidArgumentException(sprintf(
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                'Could not find data loader "%s" for "%s" filter type',
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                $loaderName,
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                $filter
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            ));
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        }
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        return $this->loaders[$loaderName];
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    }
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    /**
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     * Retrieves an image with the given filter applied.
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     *
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     * @param string $filter
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     * @param string $path
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     *
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     * @throws \LogicException
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     *
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     * @return BinaryInterface
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     */
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    public function find($filter, $path)
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    {
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        $loader = $this->getLoader($filter);
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        $binary = $loader->find($path);
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        if (!$binary instanceof BinaryInterface) {
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            $mimeType = $this->mimeTypeGuesser->guess($binary);
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            $extension = $this->getExtension($mimeType);
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            $binary = new Binary(
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                $binary,
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                $mimeType,
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                $extension
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            );
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        }
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        if (null === $binary->getMimeType()) {
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            throw new \LogicException(sprintf('The mime type of image %s was not guessed.', $path));
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        }
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        if (0 !== mb_strpos($binary->getMimeType(), 'image/')) {
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            throw new \LogicException(sprintf('The mime type of image %s must be image/xxx got %s.', $path, $binary->getMimeType()));
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        }
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        return $binary;
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    }
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    /**
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     * Get default image url with the given filter applied.
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     *
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     * @param string $filter
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     *
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     * @return string|null
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     */
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    public function getDefaultImageUrl($filter)
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    {
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        $config = $this->filterConfig->get($filter);
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        $defaultImage = null;
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        if (false === empty($config['default_image'])) {
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            $defaultImage = $config['default_image'];
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        } elseif (!empty($this->globalDefaultImage)) {
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            $defaultImage = $this->globalDefaultImage;
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        }
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        return $defaultImage;
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    }
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    private function getExtension(?string $mimeType): ?string
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    {
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        if ($this->extensionGuesser instanceof DeprecatedExtensionGuesserInterface) {
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            return $this->extensionGuesser->guess($mimeType);
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        }
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        if (null === $mimeType) {
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            return null;
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        }
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        return $this->extensionGuesser->getExtensions($mimeType)[0] ?? null;
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    }
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}
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