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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\Config;
- use Symfony\Component\Config\Exception\FileLocatorFileNotFoundException;
- /**
- * FileLocator uses an array of pre-defined paths to find files.
- *
- * @author Fabien Potencier <fabien@symfony.com>
- */
- class FileLocator implements FileLocatorInterface
- {
- protected $paths;
- /**
- * @param string|string[] $paths A path or an array of paths where to look for resources
- */
- public function __construct($paths = [])
- {
- $this->paths = (array) $paths;
- }
- /**
- * {@inheritdoc}
- */
- public function locate(string $name, string $currentPath = null, bool $first = true)
- {
- if ('' === $name) {
- throw new \InvalidArgumentException('An empty file name is not valid to be located.');
- }
- if ($this->isAbsolutePath($name)) {
- if (!file_exists($name)) {
- throw new FileLocatorFileNotFoundException(sprintf('The file "%s" does not exist.', $name), 0, null, [$name]);
- }
- return $name;
- }
- $paths = $this->paths;
- if (null !== $currentPath) {
- array_unshift($paths, $currentPath);
- }
- $paths = array_unique($paths);
- $filepaths = $notfound = [];
- foreach ($paths as $path) {
- if (@file_exists($file = $path.\DIRECTORY_SEPARATOR.$name)) {
- if (true === $first) {
- return $file;
- }
- $filepaths[] = $file;
- } else {
- $notfound[] = $file;
- }
- }
- if (!$filepaths) {
- throw new FileLocatorFileNotFoundException(sprintf('The file "%s" does not exist (in: "%s").', $name, implode('", "', $paths)), 0, null, $notfound);
- }
- return $filepaths;
- }
- /**
- * Returns whether the file path is an absolute path.
- */
- private function isAbsolutePath(string $file): bool
- {
- if ('/' === $file[0] || '\\' === $file[0]
- || (\strlen($file) > 3 && ctype_alpha($file[0])
- && ':' === $file[1]
- && ('\\' === $file[2] || '/' === $file[2])
- )
- || null !== parse_url($file, \PHP_URL_SCHEME)
- ) {
- return true;
- }
- return false;
- }
- }
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