forked from GNUsocial/gnu-social
103 lines
2.0 KiB
PHP
103 lines
2.0 KiB
PHP
<?php
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namespace Doctrine\Common\Cache;
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use const PHP_EOL;
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use function fclose;
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use function fgets;
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use function fopen;
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use function is_file;
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use function serialize;
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use function time;
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use function unserialize;
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/**
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* Filesystem cache driver.
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*/
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class FilesystemCache extends FileCache
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{
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public const EXTENSION = '.doctrinecache.data';
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/**
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* {@inheritdoc}
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*/
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public function __construct($directory, $extension = self::EXTENSION, $umask = 0002)
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{
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parent::__construct($directory, $extension, $umask);
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}
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/**
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* {@inheritdoc}
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*/
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protected function doFetch($id)
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{
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$data = '';
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$lifetime = -1;
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$filename = $this->getFilename($id);
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if (! is_file($filename)) {
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return false;
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}
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$resource = fopen($filename, 'r');
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$line = fgets($resource);
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if ($line !== false) {
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$lifetime = (int) $line;
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}
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if ($lifetime !== 0 && $lifetime < time()) {
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fclose($resource);
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return false;
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}
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while (($line = fgets($resource)) !== false) {
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$data .= $line;
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}
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fclose($resource);
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return unserialize($data);
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}
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/**
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* {@inheritdoc}
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*/
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protected function doContains($id)
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{
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$lifetime = -1;
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$filename = $this->getFilename($id);
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if (! is_file($filename)) {
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return false;
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}
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$resource = fopen($filename, 'r');
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$line = fgets($resource);
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if ($line !== false) {
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$lifetime = (int) $line;
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}
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fclose($resource);
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return $lifetime === 0 || $lifetime > time();
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}
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/**
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* {@inheritdoc}
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*/
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protected function doSave($id, $data, $lifeTime = 0)
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{
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if ($lifeTime > 0) {
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$lifeTime = time() + $lifeTime;
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}
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$data = serialize($data);
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$filename = $this->getFilename($id);
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return $this->writeFile($filename, $lifeTime . PHP_EOL . $data);
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}
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}
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