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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\Cache\Traits;
- use Symfony\Component\Cache\CacheItem;
- use Symfony\Component\Cache\Exception\InvalidArgumentException;
- /**
- * @author Titouan Galopin <galopintitouan@gmail.com>
- * @author Nicolas Grekas <p@tchwork.com>
- *
- * @internal
- */
- trait PhpArrayTrait
- {
- use ProxyTrait;
- private $file;
- private $values;
- private $zendDetectUnicode;
- /**
- * Store an array of cached values.
- *
- * @param array $values The cached values
- */
- public function warmUp(array $values)
- {
- if (file_exists($this->file)) {
- if (!is_file($this->file)) {
- throw new InvalidArgumentException(sprintf('Cache path exists and is not a file: %s.', $this->file));
- }
- if (!is_writable($this->file)) {
- throw new InvalidArgumentException(sprintf('Cache file is not writable: %s.', $this->file));
- }
- } else {
- $directory = \dirname($this->file);
- if (!is_dir($directory) && !@mkdir($directory, 0777, true)) {
- throw new InvalidArgumentException(sprintf('Cache directory does not exist and cannot be created: %s.', $directory));
- }
- if (!is_writable($directory)) {
- throw new InvalidArgumentException(sprintf('Cache directory is not writable: %s.', $directory));
- }
- }
- $dump = <<<'EOF'
- <?php
- // This file has been auto-generated by the Symfony Cache Component.
- return [
- EOF;
- foreach ($values as $key => $value) {
- CacheItem::validateKey(\is_int($key) ? (string) $key : $key);
- if (null === $value || \is_object($value)) {
- try {
- $value = serialize($value);
- } catch (\Exception $e) {
- throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable %s value.', $key, \get_class($value)), 0, $e);
- }
- } elseif (\is_array($value)) {
- try {
- $serialized = serialize($value);
- $unserialized = unserialize($serialized);
- } catch (\Exception $e) {
- throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable array value.', $key), 0, $e);
- }
- // Store arrays serialized if they contain any objects or references
- if ($unserialized !== $value || (false !== strpos($serialized, ';R:') && preg_match('/;R:[1-9]/', $serialized))) {
- $value = $serialized;
- }
- } elseif (\is_string($value)) {
- // Serialize strings if they could be confused with serialized objects or arrays
- if ('N;' === $value || (isset($value[2]) && ':' === $value[1])) {
- $value = serialize($value);
- }
- } elseif (!\is_scalar($value)) {
- throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable %s value.', $key, \gettype($value)));
- }
- $dump .= var_export($key, true).' => '.var_export($value, true).",\n";
- }
- $dump .= "\n];\n";
- $dump = str_replace("' . \"\\0\" . '", "\0", $dump);
- $tmpFile = uniqid($this->file, true);
- file_put_contents($tmpFile, $dump);
- @chmod($tmpFile, 0666 & ~umask());
- unset($serialized, $unserialized, $value, $dump);
- @rename($tmpFile, $this->file);
- $this->initialize();
- }
- /**
- * {@inheritdoc}
- */
- public function clear()
- {
- $this->values = [];
- $cleared = @unlink($this->file) || !file_exists($this->file);
- return $this->pool->clear() && $cleared;
- }
- /**
- * Load the cache file.
- */
- private function initialize()
- {
- if ($this->zendDetectUnicode) {
- $zmb = ini_set('zend.detect_unicode', 0);
- }
- try {
- $this->values = file_exists($this->file) ? (include $this->file ?: []) : [];
- } finally {
- if ($this->zendDetectUnicode) {
- ini_set('zend.detect_unicode', $zmb);
- }
- }
- }
- }
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