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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\Loader; use Symfony\Component\Config\Exception\FileLoaderImportCircularReferenceException; use Symfony\Component\Config\Exception\FileLocatorFileNotFoundException; use Symfony\Component\Config\Exception\LoaderLoadException; use Symfony\Component\Config\FileLocatorInterface; use Symfony\Component\Config\Resource\FileExistenceResource; use Symfony\Component\Config\Resource\GlobResource; /** * FileLoader is the abstract class used by all built-in loaders that are file based. * * @author Fabien Potencier <fabien@symfony.com> */ abstract class FileLoader extends Loader { protected static $loading = []; protected $locator; private $currentDir; public function __construct(FileLocatorInterface $locator) { $this->locator = $locator; } /** * Sets the current directory. * * @param string $dir */ public function setCurrentDir($dir) { $this->currentDir = $dir; } /** * Returns the file locator used by this loader. * * @return FileLocatorInterface */ public function getLocator() { return $this->locator; } /** * Imports a resource. * * @param mixed $resource A Resource * @param string|null $type The resource type or null if unknown * @param bool $ignoreErrors Whether to ignore import errors or not * @param string|null $sourceResource The original resource importing the new resource * @param string|string[]|null $exclude Glob patterns to exclude from the import * * @return mixed * * @throws LoaderLoadException * @throws FileLoaderImportCircularReferenceException * @throws FileLocatorFileNotFoundException */ public function import($resource, $type = null, $ignoreErrors = false, $sourceResource = null/*, $exclude = null*/) { if (\func_num_args() < 5 && __CLASS__ !== static::class && 0 !== strpos(static::class, 'Symfony\Component\\') && __CLASS__ !== (new \ReflectionMethod($this, __FUNCTION__))->getDeclaringClass()->getName() && !$this instanceof \PHPUnit\Framework\MockObject\MockObject && !$this instanceof \Prophecy\Prophecy\ProphecySubjectInterface) { @trigger_error(sprintf('The "%s()" method will have a new "$exclude = null" argument in version 5.0, not defining it is deprecated since Symfony 4.4.', __METHOD__), E_USER_DEPRECATED); } $exclude = \func_num_args() >= 5 ? func_get_arg(4) : null; if (\is_string($resource) && \strlen($resource) !== $i = strcspn($resource, '*?{[')) { $excluded = []; foreach ((array) $exclude as $pattern) { foreach ($this->glob($pattern, true, $_, false, true) as $path => $info) { // normalize Windows slashes $excluded[str_replace('\\', '/', $path)] = true; } } $ret = []; $isSubpath = 0 !== $i && false !== strpos(substr($resource, 0, $i), '/'); foreach ($this->glob($resource, false, $_, $ignoreErrors || !$isSubpath, false, $excluded) as $path => $info) { if (null !== $res = $this->doImport($path, $type, $ignoreErrors, $sourceResource)) { $ret[] = $res; } $isSubpath = true; } if ($isSubpath) { return isset($ret[1]) ? $ret : (isset($ret[0]) ? $ret[0] : null); } } return $this->doImport($resource, $type, $ignoreErrors, $sourceResource); } /** * @internal */ protected function glob(string $pattern, bool $recursive, &$resource = null, bool $ignoreErrors = false, bool $forExclusion = false, array $excluded = []) { if (\strlen($pattern) === $i = strcspn($pattern, '*?{[')) { $prefix = $pattern; $pattern = ''; } elseif (0 === $i || false === strpos(substr($pattern, 0, $i), '/')) { $prefix = '.'; $pattern = '/'.$pattern; } else { $prefix = \dirname(substr($pattern, 0, 1 + $i)); $pattern = substr($pattern, \strlen($prefix)); } try { $prefix = $this->locator->locate($prefix, $this->currentDir, true); } catch (FileLocatorFileNotFoundException $e) { if (!$ignoreErrors) { throw $e; } $resource = []; foreach ($e->getPaths() as $path) { $resource[] = new FileExistenceResource($path); } return; } $resource = new GlobResource($prefix, $pattern, $recursive, $forExclusion, $excluded); yield from $resource; } private function doImport($resource, string $type = null, bool $ignoreErrors = false, $sourceResource = null) { try { $loader = $this->resolve($resource, $type); if ($loader instanceof self && null !== $this->currentDir) { $resource = $loader->getLocator()->locate($resource, $this->currentDir, false); } $resources = \is_array($resource) ? $resource : [$resource]; for ($i = 0; $i < $resourcesCount = \count($resources); ++$i) { if (isset(self::$loading[$resources[$i]])) { if ($i == $resourcesCount - 1) { throw new FileLoaderImportCircularReferenceException(array_keys(self::$loading)); } } else { $resource = $resources[$i]; break; } } self::$loading[$resource] = true; try { $ret = $loader->load($resource, $type); } finally { unset(self::$loading[$resource]); } return $ret; } catch (FileLoaderImportCircularReferenceException $e) { throw $e; } catch (\Exception $e) { if (!$ignoreErrors) { // prevent embedded imports from nesting multiple exceptions if ($e instanceof LoaderLoadException) { throw $e; } throw new LoaderLoadException($resource, $sourceResource, null, $e, $type); } } return null; } }