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158 lines
4.7 KiB
PHP
158 lines
4.7 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Cache\Traits;
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use Symfony\Component\Cache\Exception\CacheException;
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use Symfony\Component\Cache\Exception\InvalidArgumentException;
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/**
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* @author Piotr Stankowski <git@trakos.pl>
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* @author Nicolas Grekas <p@tchwork.com>
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* @author Rob Frawley 2nd <rmf@src.run>
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*
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* @internal
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*/
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trait PhpFilesTrait
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{
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use FilesystemCommonTrait;
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private $includeHandler;
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private $zendDetectUnicode;
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public static function isSupported()
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{
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return function_exists('opcache_invalidate') && ini_get('opcache.enable');
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}
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/**
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* @return bool
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*/
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public function prune()
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{
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$time = time();
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$pruned = true;
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$allowCompile = 'cli' !== PHP_SAPI || ini_get('opcache.enable_cli');
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set_error_handler($this->includeHandler);
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try {
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foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->directory, \FilesystemIterator::SKIP_DOTS), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
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list($expiresAt) = include $file;
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if ($time >= $expiresAt) {
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$pruned = @unlink($file) && !file_exists($file) && $pruned;
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if ($allowCompile) {
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@opcache_invalidate($file, true);
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}
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}
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}
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} finally {
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restore_error_handler();
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}
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return $pruned;
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}
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/**
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* {@inheritdoc}
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*/
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protected function doFetch(array $ids)
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{
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$values = array();
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$now = time();
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if ($this->zendDetectUnicode) {
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$zmb = ini_set('zend.detect_unicode', 0);
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}
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set_error_handler($this->includeHandler);
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try {
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foreach ($ids as $id) {
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try {
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$file = $this->getFile($id);
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list($expiresAt, $values[$id]) = include $file;
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if ($now >= $expiresAt) {
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unset($values[$id]);
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}
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} catch (\Exception $e) {
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continue;
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}
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}
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} finally {
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restore_error_handler();
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if ($this->zendDetectUnicode) {
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ini_set('zend.detect_unicode', $zmb);
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}
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}
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foreach ($values as $id => $value) {
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if ('N;' === $value) {
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$values[$id] = null;
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} elseif (is_string($value) && isset($value[2]) && ':' === $value[1]) {
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$values[$id] = parent::unserialize($value);
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}
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}
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return $values;
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}
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/**
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* {@inheritdoc}
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*/
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protected function doHave($id)
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{
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return (bool) $this->doFetch(array($id));
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}
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/**
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* {@inheritdoc}
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*/
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protected function doSave(array $values, $lifetime)
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{
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$ok = true;
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$data = array($lifetime ? time() + $lifetime : PHP_INT_MAX, '');
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$allowCompile = 'cli' !== PHP_SAPI || ini_get('opcache.enable_cli');
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foreach ($values as $key => $value) {
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if (null === $value || is_object($value)) {
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$value = serialize($value);
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} elseif (is_array($value)) {
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$serialized = serialize($value);
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$unserialized = parent::unserialize($serialized);
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// Store arrays serialized if they contain any objects or references
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if ($unserialized !== $value || (false !== strpos($serialized, ';R:') && preg_match('/;R:[1-9]/', $serialized))) {
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$value = $serialized;
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}
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} elseif (is_string($value)) {
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// Serialize strings if they could be confused with serialized objects or arrays
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if ('N;' === $value || (isset($value[2]) && ':' === $value[1])) {
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$value = serialize($value);
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}
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} elseif (!is_scalar($value)) {
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throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable %s value.', $key, gettype($value)));
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}
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$data[1] = $value;
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$file = $this->getFile($key, true);
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$ok = $this->write($file, '<?php return '.var_export($data, true).';') && $ok;
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if ($allowCompile) {
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@opcache_invalidate($file, true);
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}
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}
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if (!$ok && !is_writable($this->directory)) {
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throw new CacheException(sprintf('Cache directory is not writable (%s)', $this->directory));
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}
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return $ok;
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}
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}
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