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/
http/
guitar.1/
libraries/
joomla/
filesystem/
- drwxr-xr-x
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Viewing file:  path.php (6.77 KB) -rw-r--r--Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
<?php
/**
* @package Joomla.Platform
* @subpackage FileSystem
*
* @copyright Copyright (C) 2005 - 2012 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
// Define a boolean constant as true if a Windows based host
define('JPATH_ISWIN', (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN'));
// Define a boolean constant as true if a Mac based host
define('JPATH_ISMAC', (strtoupper(substr(PHP_OS, 0, 3)) === 'MAC'));
if (!defined('DS'))
{
// Define a string constant shortcut for the DIRECTORY_SEPARATOR define
define('DS', DIRECTORY_SEPARATOR);
}
if (!defined('JPATH_ROOT'))
{
// Define a string constant for the root directory of the file system in native format
define('JPATH_ROOT', JPath::clean(JPATH_SITE));
}
/**
* A Path handling class
*
* @package Joomla.Platform
* @subpackage FileSystem
* @since 11.1
*/
class JPath
{
/**
* Checks if a path's permissions can be changed.
*
* @param string $path Path to check.
*
* @return boolean True if path can have mode changed.
*
* @since 11.1
*/
public static function canChmod($path)
{
$perms = fileperms($path);
if ($perms !== false)
{
if (@chmod($path, $perms ^ 0001))
{
@chmod($path, $perms);
return true;
}
}
return false;
}
/**
* Chmods files and directories recursively to given permissions.
*
* @param string $path Root path to begin changing mode [without trailing slash].
* @param string $filemode Octal representation of the value to change file mode to [null = no change].
* @param string $foldermode Octal representation of the value to change folder mode to [null = no change].
*
* @return boolean True if successful [one fail means the whole operation failed].
*
* @since 11.1
*/
public static function setPermissions($path, $filemode = '0644', $foldermode = '0755')
{
// Initialise return value
$ret = true;
if (is_dir($path))
{
$dh = opendir($path);
while ($file = readdir($dh))
{
if ($file != '.' && $file != '..')
{
$fullpath = $path . '/' . $file;
if (is_dir($fullpath))
{
if (!JPath::setPermissions($fullpath, $filemode, $foldermode))
{
$ret = false;
}
}
else
{
if (isset($filemode))
{
if (!@ chmod($fullpath, octdec($filemode)))
{
$ret = false;
}
}
}
}
}
closedir($dh);
if (isset($foldermode))
{
if (!@ chmod($path, octdec($foldermode)))
{
$ret = false;
}
}
}
else
{
if (isset($filemode))
{
$ret = @ chmod($path, octdec($filemode));
}
}
return $ret;
}
/**
* Get the permissions of the file/folder at a give path.
*
* @param string $path The path of a file/folder.
*
* @return string Filesystem permissions.
*
* @since 11.1
*/
public static function getPermissions($path)
{
$path = JPath::clean($path);
$mode = @ decoct(@ fileperms($path) & 0777);
if (strlen($mode) < 3)
{
return '---------';
}
$parsed_mode = '';
for ($i = 0; $i < 3; $i++)
{
// read
$parsed_mode .= ($mode{$i} & 04) ? "r" : "-";
// write
$parsed_mode .= ($mode{$i} & 02) ? "w" : "-";
// execute
$parsed_mode .= ($mode{$i} & 01) ? "x" : "-";
}
return $parsed_mode;
}
/**
* Checks for snooping outside of the file system root.
*
* @param string $path A file system path to check.
* @param string $ds Directory separator (optional).
*
* @return string A cleaned version of the path or exit on error.
*
* @since 11.1
*/
public static function check($path, $ds = DIRECTORY_SEPARATOR)
{
if (strpos($path, '..') !== false)
{
// Don't translate
JError::raiseError(20, 'JPath::check Use of relative paths not permitted');
jexit();
}
$path = JPath::clean($path);
if ((JPATH_ROOT != '') && strpos($path, JPath::clean(JPATH_ROOT)) !== 0)
{
// Don't translate
JError::raiseError(20, 'JPath::check Snooping out of bounds @ ' . $path);
jexit();
}
return $path;
}
/**
* Function to strip additional / or \ in a path name.
*
* @param string $path The path to clean.
* @param string $ds Directory separator (optional).
*
* @return string The cleaned path.
*
* @since 11.1
*/
public static function clean($path, $ds = DIRECTORY_SEPARATOR)
{
$path = trim($path);
if (empty($path))
{
$path = JPATH_ROOT;
}
else
{
// Remove double slashes and backslashes and convert all slashes and backslashes to DIRECTORY_SEPARATOR
$path = preg_replace('#[/\\\\]+#', $ds, $path);
}
return $path;
}
/**
* Method to determine if script owns the path.
*
* @param string $path Path to check ownership.
*
* @return boolean True if the php script owns the path passed.
*
* @since 11.1
*/
public static function isOwner($path)
{
jimport('joomla.filesystem.file');
$tmp = md5(JUserHelper::genRandomPassword(16));
$ssp = ini_get('session.save_path');
$jtp = JPATH_SITE . '/tmp';
// Try to find a writable directory
$dir = is_writable('/tmp') ? '/tmp' : false;
$dir = (!$dir && is_writable($ssp)) ? $ssp : false;
$dir = (!$dir && is_writable($jtp)) ? $jtp : false;
if ($dir)
{
$test = $dir . '/' . $tmp;
// Create the test file
$blank = '';
JFile::write($test, $blank, false);
// Test ownership
$return = (fileowner($test) == fileowner($path));
// Delete the test file
JFile::delete($test);
return $return;
}
return false;
}
/**
* Searches the directory paths for a given file.
*
* @param mixed $paths An path string or array of path strings to search in
* @param string $file The file name to look for.
*
* @return mixed The full path and file name for the target file, or boolean false if the file is not found in any of the paths.
*
* @since 11.1
*/
public static function find($paths, $file)
{
settype($paths, 'array'); //force to array
// Start looping through the path set
foreach ($paths as $path)
{
// Get the path to the file
$fullname = $path . '/' . $file;
// Is the path based on a stream?
if (strpos($path, '://') === false)
{
// Not a stream, so do a realpath() to avoid directory
// traversal attempts on the local file system.
$path = realpath($path); // needed for substr() later
$fullname = realpath($fullname);
}
// The substr() check added to make sure that the realpath()
// results in a directory registered so that
// non-registered directories are not accessible via directory
// traversal attempts.
if (file_exists($fullname) && substr($fullname, 0, strlen($path)) == $path)
{
return $fullname;
}
}
// Could not find the file in the set of paths
return false;
}
}
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