Verzeichnisstruktur phpBB-3.3.15
- Veröffentlicht
- 28.08.2024
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DirectoryResource.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\Resource;
013
014 /**
015 * DirectoryResource represents a resources stored in a subdirectory tree.
016 *
017 * @author Fabien Potencier <fabien@symfony.com>
018 */
019 class DirectoryResource implements SelfCheckingResourceInterface, \Serializable
020 {
021 private $resource;
022 private $pattern;
023
024 /**
025 * @param string $resource The file path to the resource
026 * @param string|null $pattern A pattern to restrict monitored files
027 *
028 * @throws \InvalidArgumentException
029 */
030 public function __construct($resource, $pattern = null)
031 {
032 $this->resource = realpath($resource) ?: (file_exists($resource) ? $resource : false);
033 $this->pattern = $pattern;
034
035 if (false === $this->resource || !is_dir($this->resource)) {
036 throw new \InvalidArgumentException(sprintf('The directory "%s" does not exist.', $resource));
037 }
038 }
039
040 /**
041 * {@inheritdoc}
042 */
043 public function __toString()
044 {
045 return md5(serialize([$this->resource, $this->pattern]));
046 }
047
048 /**
049 * @return string The file path to the resource
050 */
051 public function getResource()
052 {
053 return $this->resource;
054 }
055
056 /**
057 * Returns the pattern to restrict monitored files.
058 *
059 * @return string|null
060 */
061 public function getPattern()
062 {
063 return $this->pattern;
064 }
065
066 /**
067 * {@inheritdoc}
068 */
069 public function isFresh($timestamp)
070 {
071 if (!is_dir($this->resource)) {
072 return false;
073 }
074
075 if ($timestamp < filemtime($this->resource)) {
076 return false;
077 }
078
079 foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->resource), \RecursiveIteratorIterator::SELF_FIRST) as $file) {
080 // if regex filtering is enabled only check matching files
081 if ($this->pattern && $file->isFile() && !preg_match($this->pattern, $file->getBasename())) {
082 continue;
083 }
084
085 // always monitor directories for changes, except the .. entries
086 // (otherwise deleted files wouldn't get detected)
087 if ($file->isDir() && '/..' === substr($file, -3)) {
088 continue;
089 }
090
091 // for broken links
092 try {
093 $fileMTime = $file->getMTime();
094 } catch (\RuntimeException $e) {
095 continue;
096 }
097
098 // early return if a file's mtime exceeds the passed timestamp
099 if ($timestamp < $fileMTime) {
100 return false;
101 }
102 }
103
104 return true;
105 }
106
107 /**
108 * @internal
109 */
110 public function serialize()
111 {
112 return serialize([$this->resource, $this->pattern]);
113 }
114
115 /**
116 * @internal
117 */
118 public function unserialize($serialized)
119 {
120 list($this->resource, $this->pattern) = unserialize($serialized);
121 }
122 }
123