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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\Binary\Locator; |
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use Liip\ImagineBundle\Exception\Binary\Loader\NotLoadableException; |
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use Liip\ImagineBundle\Exception\InvalidArgumentException; |
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use Symfony\Component\OptionsResolver\Exception\ExceptionInterface; |
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use Symfony\Component\OptionsResolver\OptionsResolver; |
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class FileSystemLocator implements LocatorInterface |
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{ |
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/** |
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* @var string[] |
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*/ |
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private $roots = array(); |
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public function __construct(array $dataRoots = array()) |
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{ |
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$this->setOptions(array('roots' => $dataRoots)); |
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} |
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/** |
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* @param array[] $options |
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*/ |
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public function setOptions(array $options = array()) |
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{ |
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$resolver = new OptionsResolver(); |
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$resolver->setDefaults(array('roots' => array())); |
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try { |
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$options = $resolver->resolve($options); |
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} catch (ExceptionInterface $e) { |
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throw new InvalidArgumentException(sprintf('Invalid options provided to %s()', __METHOD__), null, $e); |
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} |
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$this->roots = array_map(array($this, 'sanitizeRootPath'), (array) $options['roots']); |
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} |
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/** |
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* @param string $path |
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* |
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* @throws NotLoadableException |
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* |
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* @return string |
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*/ |
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public function locate($path) |
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{ |
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if (false !== $absolute = $this->locateUsingRootPlaceholder($path)) { |
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return $this->sanitizeAbsolutePath($absolute); |
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} |
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if (false !== $absolute = $this->locateUsingRootPathsSearch($path)) { |
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return $this->sanitizeAbsolutePath($absolute); |
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} |
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throw new NotLoadableException(sprintf('Source image not resolvable "%s" in root path(s) "%s"', |
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$path, implode(':', $this->roots))); |
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} |
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/** |
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* @param string $path |
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* |
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* @return bool|string |
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*/ |
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private function locateUsingRootPathsSearch($path) |
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{ |
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foreach ($this->roots as $root) { |
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if (false !== $absolute = $this->generateAbsolutePath($root, $path)) { |
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return $absolute; |
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} |
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} |
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return false; |
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} |
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/** |
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* @param string $path |
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* |
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* @return bool|string |
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*/ |
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private function locateUsingRootPlaceholder($path) |
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{ |
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if (0 !== strpos($path, '@') || 1 !== preg_match('{@(?<name>[^:]+):(?<path>.+)}', $path, $matches)) { |
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return false; |
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} |
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if (isset($this->roots[$matches['name']])) { |
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return $this->generateAbsolutePath($this->roots[$matches['name']], $matches['path']); |
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} |
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throw new NotLoadableException(sprintf('Invalid root placeholder "%s" for path "%s"', |
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$matches['name'], $matches['path'])); |
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} |
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/** |
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* @param string $root |
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* @param string $path |
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* |
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* @return string|false |
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*/ |
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protected function generateAbsolutePath($root, $path) |
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{ |
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return realpath($root.DIRECTORY_SEPARATOR.$path); |
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} |
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/** |
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* @param string $root |
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* |
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* @throws InvalidArgumentException |
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* |
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* @return string |
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*/ |
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private function sanitizeRootPath($root) |
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{ |
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if (!empty($root) && false !== $realRoot = realpath($root)) { |
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return $realRoot; |
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} |
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throw new InvalidArgumentException(sprintf('Root image path not resolvable "%s"', $root)); |
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} |
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/** |
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* @param string $path |
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* |
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* @throws NotLoadableException |
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* |
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* @return string |
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*/ |
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private function sanitizeAbsolutePath($path) |
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{ |
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foreach ($this->roots as $root) { |
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if (0 === strpos($path, $root)) { |
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return $path; |
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} |
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} |
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throw new NotLoadableException(sprintf('Source image invalid "%s" as it is outside of the defined root path(s) "%s"', |
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$path, implode(':', $this->roots))); |
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} |
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} |
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liip /
LiipImagineBundle
