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<?php |
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declare(strict_types=1); |
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namespace AbterPhp\Framework\Filesystem; |
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use League\Flysystem\FilesystemException; |
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use League\Flysystem\FilesystemOperator; |
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use League\Flysystem\UnableToReadFile; |
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class FileFinder implements IFileFinder |
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{ |
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/** @var FilesystemOperator[][][] */ |
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protected array $filesystems = []; |
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/** @var string[] */ |
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protected array $filesystemKeys = []; |
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/** |
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* @param FilesystemOperator $filesystem |
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* @param string $key |
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* @param int $priority |
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*/ |
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public function registerFilesystem( |
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FilesystemOperator $filesystem, |
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string $key = IFileFinder::DEFAULT_KEY, |
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int $priority = -1 |
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): void { |
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if (empty($this->filesystems[$key][$priority])) { |
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$this->filesystems[$key][$priority] = []; |
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} |
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$this->filesystems[$key][$priority][] = $filesystem; |
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krsort($this->filesystems[$key]); |
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$this->filesystemKeys[spl_object_id($filesystem)] = $key; |
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} |
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/** |
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* @param string $path |
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* @param string $groupName |
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* |
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* @return bool |
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* @throws FilesystemException |
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*/ |
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public function fileExists(string $path, string $groupName = IFileFinder::DEFAULT_KEY): bool |
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{ |
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return $this->findFilesystem($path, $groupName) !== null; |
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} |
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/** |
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* @param string $path |
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* @param string $groupName |
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* |
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* @return string|null |
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* @throws UnableToReadFile |
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* @throws FilesystemException |
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*/ |
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public function read(string $path, string $groupName = IFileFinder::DEFAULT_KEY): ?string |
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{ |
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$filesystem = $this->findFilesystem($path, $groupName); |
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if (!$filesystem) { |
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return null; |
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} |
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try { |
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$filesystemPath = $this->getFilesystemPath($filesystem, $path); |
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return (string)$filesystem->read($filesystemPath); |
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} catch (\Exception $e) { |
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return null; |
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} |
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} |
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/** |
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* @param string $path |
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* @param string $key |
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* |
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* @return FilesystemOperator|null |
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* @throws FilesystemException |
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*/ |
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protected function findFilesystem(string $path, string $key): ?FilesystemOperator |
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{ |
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$possibleKeys = $this->getPossibleKeys($path, $key); |
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foreach ($possibleKeys as $rootKey) { |
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foreach ($this->filesystems[$rootKey] as $filesystems) { |
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foreach ($filesystems as $filesystem) { |
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$realPath = $this->getFilesystemPath($filesystem, $path); |
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if ($filesystem->fileExists($realPath)) { |
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return $filesystem; |
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} |
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} |
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} |
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} |
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return null; |
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} |
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/** |
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* @param FilesystemOperator $filesystem |
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* @param string $path |
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* |
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* @return string |
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*/ |
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protected function getFilesystemPath(FilesystemOperator $filesystem, string $path): string |
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{ |
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$rootKey = $this->filesystemKeys[spl_object_id($filesystem)]; |
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if ($rootKey === static::DEFAULT_KEY) { |
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return $path; |
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} |
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$fixedPath = ltrim($path, '/'); |
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if (strpos($fixedPath, $rootKey) === 0) { |
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return substr($fixedPath, strlen($rootKey)); |
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} |
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return $path; |
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} |
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/** |
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* @param string $path |
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* @param string $key |
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* |
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* @return string[] |
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*/ |
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protected function getPossibleKeys(string $path, string $key): array |
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{ |
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if ($key !== static::DEFAULT_KEY && isset($this->filesystems[$key])) { |
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return [$key]; |
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} |
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$fixedPath = ltrim($path, '/'); |
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$keys = []; |
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foreach (array_keys($this->filesystems) as $rootKey) { |
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if (substr($fixedPath, 0, strlen($rootKey)) === $rootKey) { |
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$keys[] = $rootKey; |
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} |
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} |
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if (isset($this->filesystems[static::DEFAULT_KEY])) { |
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$keys[] = static::DEFAULT_KEY; |
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} |
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return $keys; |
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} |
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} |
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abterphp /
framework
