Verzeichnisstruktur phpBB-3.1.0
- Veröffentlicht
- 27.10.2014
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FileLocator.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\Config;
013
014 /**
015 * FileLocator uses an array of pre-defined paths to find files.
016 *
017 * @author Fabien Potencier <fabien@symfony.com>
018 */
019 class FileLocator implements FileLocatorInterface
020 {
021 protected $paths;
022
023 /**
024 * Constructor.
025 *
026 * @param string|array $paths A path or an array of paths where to look for resources
027 */
028 public function __construct($paths = array())
029 {
030 $this->paths = (array) $paths;
031 }
032
033 /**
034 * Returns a full path for a given file name.
035 *
036 * @param mixed $name The file name to locate
037 * @param string $currentPath The current path
038 * @param bool $first Whether to return the first occurrence or an array of filenames
039 *
040 * @return string|array The full path to the file|An array of file paths
041 *
042 * @throws \InvalidArgumentException When file is not found
043 */
044 public function locate($name, $currentPath = null, $first = true)
045 {
046 if ($this->isAbsolutePath($name)) {
047 if (!file_exists($name)) {
048 throw new \InvalidArgumentException(sprintf('The file "%s" does not exist.', $name));
049 }
050
051 return $name;
052 }
053
054 $filepaths = array();
055 if (null !== $currentPath && file_exists($file = $currentPath.DIRECTORY_SEPARATOR.$name)) {
056 if (true === $first) {
057 return $file;
058 }
059 $filepaths[] = $file;
060 }
061
062 foreach ($this->paths as $path) {
063 if (file_exists($file = $path.DIRECTORY_SEPARATOR.$name)) {
064 if (true === $first) {
065 return $file;
066 }
067 $filepaths[] = $file;
068 }
069 }
070
071 if (!$filepaths) {
072 throw new \InvalidArgumentException(sprintf('The file "%s" does not exist (in: %s%s).', $name, null !== $currentPath ? $currentPath.', ' : '', implode(', ', $this->paths)));
073 }
074
075 return array_values(array_unique($filepaths));
076 }
077
078 /**
079 * Returns whether the file path is an absolute path.
080 *
081 * @param string $file A file path
082 *
083 * @return bool
084 */
085 private function isAbsolutePath($file)
086 {
087 if ($file[0] == '/' || $file[0] == '\\'
088 || (strlen($file) > 3 && ctype_alpha($file[0])
089 && $file[1] == ':'
090 && ($file[2] == '\\' || $file[2] == '/')
091 )
092 || null !== parse_url($file, PHP_URL_SCHEME)
093 ) {
094 return true;
095 }
096
097 return false;
098 }
099 }
100