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