From 04d6d5ca99ebfd1cebb8ce06618fb3811fc1a8aa Mon Sep 17 00:00:00 2001 From: Charles Date: Thu, 9 Jan 2020 10:55:03 +0100 Subject: phpmyadmin working --- .../symfony/config/ResourceCheckerConfigCache.php | 188 +++++++++++++++++++++ 1 file changed, 188 insertions(+) create mode 100644 srcs/phpmyadmin/vendor/symfony/config/ResourceCheckerConfigCache.php (limited to 'srcs/phpmyadmin/vendor/symfony/config/ResourceCheckerConfigCache.php') diff --git a/srcs/phpmyadmin/vendor/symfony/config/ResourceCheckerConfigCache.php b/srcs/phpmyadmin/vendor/symfony/config/ResourceCheckerConfigCache.php new file mode 100644 index 0000000..ac4adb7 --- /dev/null +++ b/srcs/phpmyadmin/vendor/symfony/config/ResourceCheckerConfigCache.php @@ -0,0 +1,188 @@ + + * + * 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\Resource\ResourceInterface; +use Symfony\Component\Filesystem\Exception\IOException; +use Symfony\Component\Filesystem\Filesystem; + +/** + * ResourceCheckerConfigCache uses instances of ResourceCheckerInterface + * to check whether cached data is still fresh. + * + * @author Matthias Pigulla + */ +class ResourceCheckerConfigCache implements ConfigCacheInterface +{ + /** + * @var string + */ + private $file; + + /** + * @var iterable|ResourceCheckerInterface[] + */ + private $resourceCheckers; + + /** + * @param string $file The absolute cache path + * @param iterable|ResourceCheckerInterface[] $resourceCheckers The ResourceCheckers to use for the freshness check + */ + public function __construct(string $file, iterable $resourceCheckers = []) + { + $this->file = $file; + $this->resourceCheckers = $resourceCheckers; + } + + /** + * {@inheritdoc} + */ + public function getPath() + { + return $this->file; + } + + /** + * Checks if the cache is still fresh. + * + * This implementation will make a decision solely based on the ResourceCheckers + * passed in the constructor. + * + * The first ResourceChecker that supports a given resource is considered authoritative. + * Resources with no matching ResourceChecker will silently be ignored and considered fresh. + * + * @return bool true if the cache is fresh, false otherwise + */ + public function isFresh() + { + if (!is_file($this->file)) { + return false; + } + + if ($this->resourceCheckers instanceof \Traversable && !$this->resourceCheckers instanceof \Countable) { + $this->resourceCheckers = iterator_to_array($this->resourceCheckers); + } + + if (!\count($this->resourceCheckers)) { + return true; // shortcut - if we don't have any checkers we don't need to bother with the meta file at all + } + + $metadata = $this->getMetaFile(); + + if (!is_file($metadata)) { + return false; + } + + $meta = $this->safelyUnserialize($metadata); + + if (false === $meta) { + return false; + } + + $time = filemtime($this->file); + + foreach ($meta as $resource) { + /* @var ResourceInterface $resource */ + foreach ($this->resourceCheckers as $checker) { + if (!$checker->supports($resource)) { + continue; // next checker + } + if ($checker->isFresh($resource, $time)) { + break; // no need to further check this resource + } + + return false; // cache is stale + } + // no suitable checker found, ignore this resource + } + + return true; + } + + /** + * Writes cache. + * + * @param string $content The content to write in the cache + * @param ResourceInterface[] $metadata An array of metadata + * + * @throws \RuntimeException When cache file can't be written + */ + public function write($content, array $metadata = null) + { + $mode = 0666; + $umask = umask(); + $filesystem = new Filesystem(); + $filesystem->dumpFile($this->file, $content); + try { + $filesystem->chmod($this->file, $mode, $umask); + } catch (IOException $e) { + // discard chmod failure (some filesystem may not support it) + } + + if (null !== $metadata) { + $filesystem->dumpFile($this->getMetaFile(), serialize($metadata)); + try { + $filesystem->chmod($this->getMetaFile(), $mode, $umask); + } catch (IOException $e) { + // discard chmod failure (some filesystem may not support it) + } + } + + if (\function_exists('opcache_invalidate') && filter_var(ini_get('opcache.enable'), FILTER_VALIDATE_BOOLEAN)) { + @opcache_invalidate($this->file, true); + } + } + + /** + * Gets the meta file path. + */ + private function getMetaFile(): string + { + return $this->file.'.meta'; + } + + private function safelyUnserialize(string $file) + { + $meta = false; + $content = file_get_contents($file); + $signalingException = new \UnexpectedValueException(); + $prevUnserializeHandler = ini_set('unserialize_callback_func', self::class.'::handleUnserializeCallback'); + $prevErrorHandler = set_error_handler(function ($type, $msg, $file, $line, $context = []) use (&$prevErrorHandler, $signalingException) { + if (__FILE__ === $file) { + throw $signalingException; + } + + return $prevErrorHandler ? $prevErrorHandler($type, $msg, $file, $line, $context) : false; + }); + + try { + $meta = unserialize($content); + } catch (\Throwable $e) { + if ($e !== $signalingException) { + throw $e; + } + } finally { + restore_error_handler(); + ini_set('unserialize_callback_func', $prevUnserializeHandler); + } + + return $meta; + } + + /** + * @internal + */ + public static function handleUnserializeCallback($class) + { + trigger_error('Class not found: '.$class); + } +} -- cgit