125 lines
2.9 KiB
PHP
125 lines
2.9 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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/**
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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 FilesystemTrait
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{
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use FilesystemCommonTrait;
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private $marshaller;
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/**
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* @return bool
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*/
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public function prune()
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{
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$time = time();
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$pruned = true;
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foreach ($this->scanHashDir($this->directory) as $file) {
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if (!$h = @fopen($file, 'r')) {
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continue;
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}
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if (($expiresAt = (int) fgets($h)) && $time >= $expiresAt) {
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fclose($h);
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$pruned = (@unlink($file) || !file_exists($file)) && $pruned;
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} else {
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fclose($h);
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}
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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 = [];
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$now = time();
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foreach ($ids as $id) {
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$file = $this->getFile($id);
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if (!is_file($file) || !$h = @fopen($file, 'r')) {
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continue;
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}
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if (($expiresAt = (int) fgets($h)) && $now >= $expiresAt) {
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fclose($h);
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@unlink($file);
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} else {
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$i = rawurldecode(rtrim(fgets($h)));
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$value = stream_get_contents($h);
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fclose($h);
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if ($i === $id) {
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$values[$id] = $this->marshaller->unmarshall($value);
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}
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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(string $id)
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{
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$file = $this->getFile($id);
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return is_file($file) && (@filemtime($file) > time() || $this->doFetch([$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, int $lifetime)
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{
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$expiresAt = $lifetime ? (time() + $lifetime) : 0;
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$values = $this->marshaller->marshall($values, $failed);
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foreach ($values as $id => $value) {
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if (!$this->write($this->getFile($id, true), $expiresAt."\n".rawurlencode($id)."\n".$value, $expiresAt)) {
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$failed[] = $id;
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}
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}
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if ($failed && !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 $failed;
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}
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private function getFileKey(string $file): string
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{
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if (!$h = @fopen($file, 'r')) {
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return '';
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}
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fgets($h); // expiry
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$encodedKey = fgets($h);
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fclose($h);
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return rawurldecode(rtrim($encodedKey));
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}
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}
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