/usr/share/php/Horde/SessionHandler/Storage/File.php is in php-horde-sessionhandler 2.2.9-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* Copyright 2010-2017 Horde LLC (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.horde.org/licenses/lgpl21.
*
* @category Horde
* @copyright 2010-2017 Horde LLC
* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
* @package SessionHandler
*/
/**
* SessionHandler implementation for storage in text files.
*
* @author Michael Slusarz <slusarz@horde.org>
* @category Horde
* @copyright 2010-2017 Horde LLC
* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
* @package SessionHandler
*/
class Horde_SessionHandler_Storage_File extends Horde_SessionHandler_Storage
{
/* File prefix. */
const PREFIX = 'horde_sh_';
/**
* File stream.
*
* @var resource
*/
protected $_fp;
/**
* Constructor.
*
* @param array $params Parameters:
* <pre>
* path - (string) [REQUIRED] The path to save the files.
* </pre>
*
* @throws InvalidArgumentException
*/
public function __construct(array $params = array())
{
if (!isset($params['path'])) {
throw new InvalidArgumentException('Missing path parameter.');
}
$params['path'] = rtrim($params['path'], '/');
parent::__construct($params);
}
/**
*/
public function open($save_path = null, $session_name = null)
{
return true;
}
/**
* Open the file stream connection.
*
* @param string $id The session ID.
*/
protected function _open($id)
{
if (!empty($this->_fp)) {
return;
}
$filename = $this->_params['path'] . '/' . self::PREFIX . $id;
$this->_fp = fopen($filename, 'c+');
if ($this->_fp) {
flock($this->_fp, LOCK_EX);
}
}
/**
*/
public function close()
{
if (!empty($this->_fp)) {
flock($this->_fp, LOCK_UN);
fclose($this->_fp);
unset($this->_fp);
}
return true;
}
/**
*/
public function read($id)
{
$this->_open($id);
if (!$this->_fp) {
return false;
}
$data = '';
rewind($this->_fp);
while (!feof($this->_fp)) {
$data .= fread($this->_fp, 16384);
}
return $data;
}
/**
*/
public function write($id, $session_data)
{
$this->_open($id);
if (!$this->_fp) {
return false;
}
fseek($this->_fp, 0);
ftruncate($this->_fp, 0);
fwrite($this->_fp, $session_data);
return true;
}
/**
*/
public function destroy($id)
{
$this->close();
$filename = $this->_params['path'] . '/' . self::PREFIX . $id;
return @unlink($filename);
}
/**
*/
public function gc($maxlifetime = 300)
{
try {
$di = new DirectoryIterator($this->_params['path']);
} catch (UnexpectedValueException $e) {
return false;
}
$expire_time = time() - $maxlifetime;
foreach ($di as $val) {
if ($val->isFile() &&
(strpos($val->getFilename(), self::PREFIX) === 0) &&
($val->getMTime() < $expire_time)) {
@unlink($val->getPathname());
}
}
return true;
}
/**
*/
public function getSessionIDs()
{
$ids = array();
try {
$di = new DirectoryIterator($this->_params['path']);
foreach ($di as $val) {
if ($val->isFile() &&
(strpos($val->getFilename(), self::PREFIX) === 0)) {
$ids[] = substr($val->getFilename(), strlen(self::PREFIX));
}
}
} catch (UnexpectedValueException $e) {}
return $ids;
}
}
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