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File Name : file.php

<?php
/**
 * @package     Joomla.Platform
 * @subpackage  Cache
 *
 * @copyright   Copyright (C) 2005 - 2014 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

/**
 * File cache storage handler
 *
 * @package     Joomla.Platform
 * @subpackage  Cache
 * @since       11.1
 */
class JCacheStorageFile extends JCacheStorage
{
	/**
	 * Root path
	 *
	 * @var    string
	 * @since  11.1
	 */
	protected $_root;

/**
	 * Constructor
	 *
	 * @param   array  $options  Optional parameters
	 *
	 * @since   11.1
	 */
	public function __construct($options = array())
	{
		parent::__construct($options);
		$this->_root = $options['cachebase'];
	}

// NOTE: raw php calls are up to 100 times faster than JFile or JFolder

/**
	 * Get cached data from a file by id and group
	 *
	 * @param   string   $id         The cache data id
	 * @param   string   $group      The cache data group
	 * @param   boolean  $checkTime  True to verify cache time expiration threshold
	 *
	 * @return  mixed  Boolean false on failure or a cached data string
	 *
	 * @since   11.1
	 */
	public function get($id, $group, $checkTime = true)
	{
		$data = false;

$path = $this->_getFilePath($id, $group);

if ($checkTime == false || ($checkTime == true && $this->_checkExpire($id, $group) === true))
		{
			if (file_exists($path))
			{
				$data = file_get_contents($path);
				if ($data)
				{
					// Remove the initial die() statement
					$data = str_replace('<?php die("Access Denied"); ?>#x#', '', $data);
				}
			}

return $data;
		}
		else
		{
			return false;
		}
	}

/**
	 * Get all cached data
	 *
	 * @return  array  The cached data
	 *
	 * @since   11.1
	 */
	public function getAll()
	{
		parent::getAll();

$path = $this->_root;
		$folders = $this->_folders($path);
		$data = array();

foreach ($folders as $folder)
		{
			$files = $this->_filesInFolder($path . '/' . $folder);
			$item = new JCacheStorageHelper($folder);

foreach ($files as $file)
			{
				$item->updateSize(filesize($path . '/' . $folder . '/' . $file) / 1024);
			}
			$data[$folder] = $item;
		}

return $data;
	}

/**
	 * Store the data to a file by id and group
	 *
	 * @param   string  $id     The cache data id
	 * @param   string  $group  The cache data group
	 * @param   string  $data   The data to store in cache
	 *
	 * @return  boolean  True on success, false otherwise
	 *
	 * @since   11.1
	 */
	public function store($id, $group, $data)
	{
		$written = false;
		$path = $this->_getFilePath($id, $group);
		$die = '<?php die("Access Denied"); ?>#x#';

// Prepend a die string
		$data = $die . $data;

$_fileopen = @fopen($path, "wb");

if ($_fileopen)
		{
			$len = strlen($data);
			@fwrite($_fileopen, $data, $len);
			$written = true;
		}

// Data integrity check
		if ($written && ($data == file_get_contents($path)))
		{
			return true;
		}
		else
		{
			return false;
		}
	}

/**
	 * Remove a cached data file by id and group
	 *
	 * @param   string  $id     The cache data id
	 * @param   string  $group  The cache data group
	 *
	 * @return  boolean  True on success, false otherwise
	 *
	 * @since   11.1
	 */
	public function remove($id, $group)
	{
		$path = $this->_getFilePath($id, $group);
		if (!@unlink($path))
		{
			return false;
		}
		return true;
	}

/**
	 * Clean cache for a group given a mode.
	 *
	 * @param   string  $group  The cache data group
	 * @param   string  $mode   The mode for cleaning cache [group|notgroup]
	 * group mode     : cleans all cache in the group
	 * notgroup mode  : cleans all cache not in the group
	 *
	 * @return  boolean  True on success, false otherwise
	 *
	 * @since   11.1
	 */
	public function clean($group, $mode = null)
	{
		$return = true;
		$folder = $group;

if (trim($folder) == '')
		{
			$mode = 'notgroup';
		}

switch ($mode)
		{
			case 'notgroup':
				$folders = $this->_folders($this->_root);
				for ($i = 0, $n = count($folders); $i < $n; $i++)
				{
					if ($folders[$i] != $folder)
					{
						$return |= $this->_deleteFolder($this->_root . '/' . $folders[$i]);
					}
				}
				break;
			case 'group':
			default:
				if (is_dir($this->_root . '/' . $folder))
				{
					$return = $this->_deleteFolder($this->_root . '/' . $folder);
				}
				break;
		}
		return $return;
	}

/**
	 * Garbage collect expired cache data
	 *
	 * @return  boolean  True on success, false otherwise.
	 *
	 * @since   11.1
	 */
	public function gc()
	{
		$result = true;

// Files older than lifeTime get deleted from cache
		$files = $this->_filesInFolder($this->_root, '', true, true, array('.svn', 'CVS', '.DS_Store', '__MACOSX', 'index.html'));
		foreach ($files as $file)
		{
			$time = @filemtime($file);
			if (($time + $this->_lifetime) < $this->_now || empty($time))
			{
				$result |= @unlink($file);
			}
		}
		return $result;
	}

/**
	 * Test to see if the cache storage is available.
	 *
	 * @return  boolean  True on success, false otherwise.
	 *
	 * @since   12.1
	 */
	public static function isSupported()
	{
		$conf = JFactory::getConfig();
		return is_writable($conf->get('cache_path', JPATH_CACHE));
	}

/**
	 * Lock cached item
	 *
	 * @param   string   $id        The cache data id
	 * @param   string   $group     The cache data group
	 * @param   integer  $locktime  Cached item max lock time
	 *
	 * @return  boolean  True on success, false otherwise.
	 *
	 * @since   11.1
	 */
	public function lock($id, $group, $locktime)
	{
		$returning = new stdClass;
		$returning->locklooped = false;

$looptime = $locktime * 10;
		$path = $this->_getFilePath($id, $group);

$_fileopen = @fopen($path, "r+b");

if ($_fileopen)
		{
			$data_lock = @flock($_fileopen, LOCK_EX);
		}
		else
		{
			$data_lock = false;
		}

if ($data_lock === false)
		{

$lock_counter = 0;

// Loop until you find that the lock has been released.
			// That implies that data get from other thread has finished
			while ($data_lock === false)
			{

if ($lock_counter > $looptime)
				{
					$returning->locked = false;
					$returning->locklooped = true;
					break;
				}

usleep(100);
				$data_lock = @flock($_fileopen, LOCK_EX);
				$lock_counter++;
			}

}
		$returning->locked = $data_lock;

return $returning;
	}

/**
	 * Unlock cached item
	 *
	 * @param   string  $id     The cache data id
	 * @param   string  $group  The cache data group
	 *
	 * @return  boolean  True on success, false otherwise.
	 *
	 * @since   11.1
	 */
	public function unlock($id, $group = null)
	{
		$path = $this->_getFilePath($id, $group);

$_fileopen = @fopen($path, "r+b");

if ($_fileopen)
		{
			$ret = @flock($_fileopen, LOCK_UN);
			@fclose($_fileopen);
		}

return $ret;
	}

/**
	 * Check to make sure cache is still valid, if not, delete it.
	 *
	 * @param   string  $id     Cache key to expire.
	 * @param   string  $group  The cache data group.
	 *
	 * @return  boolean  False if not valid
	 *
	 * @since   11.1
	 */
	protected function _checkExpire($id, $group)
	{
		$path = $this->_getFilePath($id, $group);

// Check prune period
		if (file_exists($path))
		{
			$time = @filemtime($path);
			if (($time + $this->_lifetime) < $this->_now || empty($time))
			{
				@unlink($path);
				return false;
			}
			return true;
		}
		return false;
	}

/**
	 * Get a cache file path from an id/group pair
	 *
	 * @param   string  $id     The cache data id
	 * @param   string  $group  The cache data group
	 *
	 * @return  string   The cache file path
	 *
	 * @since   11.1
	 */
	protected function _getFilePath($id, $group)
	{
		$name = $this->_getCacheId($id, $group);
		$dir = $this->_root . '/' . $group;

// If the folder doesn't exist try to create it
		if (!is_dir($dir))
		{

// Make sure the index file is there
			$indexFile = $dir . '/index.html';
			@ mkdir($dir) && file_put_contents($indexFile, '<!DOCTYPE html><title></title>');
		}

// Make sure the folder exists
		if (!is_dir($dir))
		{
			return false;
		}
		return $dir . '/' . $name . '.php';
	}

/**
	 * Quickly delete a folder of files
	 *
	 * @param   string  $path  The path to the folder to delete.
	 *
	 * @return  boolean  True on success.
	 *
	 * @since   11.1
	 */
	protected function _deleteFolder($path)
	{
		// Sanity check
		if (!$path || !is_dir($path) || empty($this->_root))
		{
			// Bad programmer! Bad, bad programmer!
			JLog::add('JCacheStorageFile::_deleteFolder ' . JText::_('JLIB_FILESYSTEM_ERROR_DELETE_BASE_DIRECTORY'), JLog::WARNING, 'jerror');
			return false;
		}

$path = $this->_cleanPath($path);

// Check to make sure path is inside cache folder, we do not want to delete Joomla root!
		$pos = strpos($path, $this->_cleanPath($this->_root));

if ($pos === false || $pos > 0)
		{
			JLog::add('JCacheStorageFile::_deleteFolder' . JText::sprintf('JLIB_FILESYSTEM_ERROR_PATH_IS_NOT_A_FOLDER', $path), JLog::WARNING, 'jerror');
			return false;
		}

// Remove all the files in folder if they exist; disable all filtering
		$files = $this->_filesInFolder($path, '.', false, true, array(), array());

if (!empty($files) && !is_array($files))
		{
			if (@unlink($files) !== true)
			{
				return false;
			}
		}
		elseif (!empty($files) && is_array($files))
		{

foreach ($files as $file)
			{
				$file = $this->_cleanPath($file);

// In case of restricted permissions we zap it one way or the other
				// as long as the owner is either the webserver or the ftp
				if (@unlink($file))
				{
					// Do nothing
				}
				else
				{
					$filename = basename($file);
					JLog::add('JCacheStorageFile::_deleteFolder' . JText::sprintf('JLIB_FILESYSTEM_DELETE_FAILED', $filename), JLog::WARNING, 'jerror');
					return false;
				}
			}
		}

// Remove sub-folders of folder; disable all filtering
		$folders = $this->_folders($path, '.', false, true, array(), array());

foreach ($folders as $folder)
		{
			if (is_link($folder))
			{
				// Don't descend into linked directories, just delete the link.
				if (@unlink($folder) !== true)
				{
					return false;
				}
			}
			elseif ($this->_deleteFolder($folder) !== true)
			{
				return false;
			}
		}

// In case of restricted permissions we zap it one way or the other
		// as long as the owner is either the webserver or the ftp
		if (@rmdir($path))
		{
			$ret = true;
		}
		else
		{
			JLog::add('JCacheStorageFile::_deleteFolder' . JText::sprintf('JLIB_FILESYSTEM_ERROR_FOLDER_DELETE', $path), JLog::WARNING, 'jerror');
			$ret = false;
		}
		return $ret;
	}

/**
	 * Function to strip additional / or \ in a path name
	 *
	 * @param   string  $path  The path to clean
	 * @param   string  $ds    Directory separator (optional)
	 *
	 * @return  string  The cleaned path
	 *
	 * @since   11.1
	 */
	protected function _cleanPath($path, $ds = DIRECTORY_SEPARATOR)
	{
		$path = trim($path);

if (empty($path))
		{
			$path = $this->_root;
		}
		else
		{
			// Remove double slashes and backslahses and convert all slashes and backslashes to DIRECTORY_SEPARATOR
			$path = preg_replace('#[/\\\\]+#', $ds, $path);
		}

return $path;
	}

/**
	 * Utility function to quickly read the files in a folder.
	 *
	 * @param   string   $path           The path of the folder to read.
	 * @param   string   $filter         A filter for file names.
	 * @param   mixed    $recurse        True to recursively search into sub-folders, or an
	 *                                   integer to specify the maximum depth.
	 * @param   boolean  $fullpath       True to return the full path to the file.
	 * @param   array    $exclude        Array with names of files which should not be shown in
	 *                                   the result.
	 * @param   array    $excludefilter  Array of folder names to exclude
	 *
	 * @return  array    Files in the given folder.
	 *
	 * @since   11.1
	 */
	protected function _filesInFolder($path, $filter = '.', $recurse = false, $fullpath = false
		, $exclude = array('.svn', 'CVS', '.DS_Store', '__MACOSX'), $excludefilter = array('^\..*', '.*~'))
	{
		$arr = array();

// Check to make sure the path valid and clean
		$path = $this->_cleanPath($path);

// Is the path a folder?
		if (!is_dir($path))
		{
			JLog::add('JCacheStorageFile::_filesInFolder' . JText::sprintf('JLIB_FILESYSTEM_ERROR_PATH_IS_NOT_A_FOLDER', $path), JLog::WARNING, 'jerror');
			return false;
		}

// Read the source directory.
		if (!($handle = @opendir($path)))
		{
			return $arr;
		}

if (count($excludefilter))
		{
			$excludefilter = '/(' . implode('|', $excludefilter) . ')/';
		}
		else
		{
			$excludefilter = '';
		}
		while (($file = readdir($handle)) !== false)
		{
			if (($file != '.') && ($file != '..') && (!in_array($file, $exclude)) && (!$excludefilter || !preg_match($excludefilter, $file)))
			{
				$dir = $path . '/' . $file;
				$isDir = is_dir($dir);
				if ($isDir)
				{
					if ($recurse)
					{
						if (is_int($recurse))
						{
							$arr2 = $this->_filesInFolder($dir, $filter, $recurse - 1, $fullpath);
						}
						else
						{
							$arr2 = $this->_filesInFolder($dir, $filter, $recurse, $fullpath);
						}

$arr = array_merge($arr, $arr2);
					}
				}
				else
				{
					if (preg_match("/$filter/", $file))
					{
						if ($fullpath)
						{
							$arr[] = $path . '/' . $file;
						}
						else
						{
							$arr[] = $file;
						}
					}
				}
			}
		}
		closedir($handle);

return $arr;
	}

/**
	 * Utility function to read the folders in a folder.
	 *
	 * @param   string   $path           The path of the folder to read.
	 * @param   string   $filter         A filter for folder names.
	 * @param   mixed    $recurse        True to recursively search into sub-folders, or an integer to specify the maximum depth.
	 * @param   boolean  $fullpath       True to return the full path to the folders.
	 * @param   array    $exclude        Array with names of folders which should not be shown in the result.
	 * @param   array    $excludefilter  Array with regular expressions matching folders which should not be shown in the result.
	 *
	 * @return  array  Folders in the given folder.
	 *
	 * @since   11.1
	 */
	protected function _folders($path, $filter = '.', $recurse = false, $fullpath = false
		, $exclude = array('.svn', 'CVS', '.DS_Store', '__MACOSX'), $excludefilter = array('^\..*'))
	{
		$arr = array();

// Check to make sure the path valid and clean
		$path = $this->_cleanPath($path);

// Is the path a folder?
		if (!is_dir($path))
		{
			JLog::add('JCacheStorageFile::_folders' . JText::sprintf('JLIB_FILESYSTEM_ERROR_PATH_IS_NOT_A_FOLDER', $path), JLog::WARNING, 'jerror');
			return false;
		}

// Read the source directory
		if (!($handle = @opendir($path)))
		{
			return $arr;
		}

if (count($excludefilter))
		{
			$excludefilter_string = '/(' . implode('|', $excludefilter) . ')/';
		}
		else
		{
			$excludefilter_string = '';
		}
		while (($file = readdir($handle)) !== false)
		{
			if (($file != '.') && ($file != '..')
				&& (!in_array($file, $exclude))
				&& (empty($excludefilter_string) || !preg_match($excludefilter_string, $file)))
			{
				$dir = $path . '/' . $file;
				$isDir = is_dir($dir);
				if ($isDir)
				{
					// Removes filtered directories
					if (preg_match("/$filter/", $file))
					{
						if ($fullpath)
						{
							$arr[] = $dir;
						}
						else
						{
							$arr[] = $file;
						}
					}
					if ($recurse)
					{
						if (is_int($recurse))
						{
							$arr2 = $this->_folders($dir, $filter, $recurse - 1, $fullpath, $exclude, $excludefilter);
						}
						else
						{
							$arr2 = $this->_folders($dir, $filter, $recurse, $fullpath, $exclude, $excludefilter);
						}

$arr = array_merge($arr, $arr2);
					}
				}
			}
		}
		closedir($handle);

return $arr;
	}
}

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Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	exploitczk/users	0705	2019-01-06 02:55:18
..	dir	-	exploitczk/users	0705	2019-01-06 02:55:16
apc.php	text/x-php	5.22 KB	exploitczk/users	0604	2019-01-06 07:21:59
apcu.php	text/x-php	6.45 KB	exploitczk/users	0644	2019-01-06 02:55:17
cachelite.php	text/x-php	7.03 KB	exploitczk/users	0604	2019-01-06 07:21:59
file.php	text/x-php	15.43 KB	exploitczk/users	0604	2019-01-06 07:21:59
helper.php	text/x-php	1.15 KB	exploitczk/users	0604	2019-01-06 07:21:59
index.html	text/html	31 B	exploitczk/users	0604	2016-10-08 12:06:29
memcache.php	text/x-php	10.09 KB	exploitczk/users	0604	2019-01-06 07:22:00
memcached.php	text/x-php	10.02 KB	exploitczk/users	0604	2019-01-06 07:22:00
redis.php	text/x-php	6.31 KB	exploitczk/users	0644	2019-01-06 02:55:19
wincache.php	text/x-php	4.32 KB	exploitczk/users	0604	2019-01-06 07:22:00
xcache.php	text/x-php	5.34 KB	exploitczk/users	0604	2019-01-06 07:22:00