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<?php
/**
* @package Joomla.Platform
* @subpackage FileSystem
*
* @copyright Copyright (C) 2005 - 2015 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
/**
* A Folder handling class
*
* @since 11.1
*/
abstract class JFolder
{
/**
* Copy a folder.
*
* @param string $src The path to the source folder.
* @param string $dest The path to the destination folder.
* @param string $path An optional base path to prefix to the file names.
* @param boolean $force Force copy.
* @param boolean $use_streams Optionally force folder/file overwrites.
*
* @return boolean True on success.
*
* @since 11.1
* @throws RuntimeException
*/
public static function copy($src, $dest, $path = '', $force = false, $use_streams = false)
{
@set_time_limit(ini_get('max_execution_time'));
$FTPOptions = JClientHelper::getCredentials('ftp');
$pathObject = new JFilesystemWrapperPath;
if ($path)
{
$src = $pathObject->clean($path . '/' . $src);
$dest = $pathObject->clean($path . '/' . $dest);
}
// Eliminate trailing directory separators, if any
$src = rtrim($src, DIRECTORY_SEPARATOR);
$dest = rtrim($dest, DIRECTORY_SEPARATOR);
if (!self::exists($src))
{
throw new RuntimeException('Source folder not found', -1);
}
if (self::exists($dest) && !$force)
{
throw new RuntimeException('Destination folder already exists', -1);
}
// Make sure the destination exists
if (!self::create($dest))
{
throw new RuntimeException('Cannot create destination folder', -1);
}
// If we're using ftp and don't have streams enabled
if ($FTPOptions['enabled'] == 1 && !$use_streams)
{
// Connect the FTP client
$ftp = JClientFtp::getInstance($FTPOptions['host'], $FTPOptions['port'], array(), $FTPOptions['user'], $FTPOptions['pass']);
if (!($dh = @opendir($src)))
{
throw new RuntimeException('Cannot open source folder', -1);
}
// Walk through the directory copying files and recursing into folders.
while (($file = readdir($dh)) !== false)
{
$sfid = $src . '/' . $file;
$dfid = $dest . '/' . $file;
switch (filetype($sfid))
{
case 'dir':
if ($file != '.' && $file != '..')
{
$ret = self::copy($sfid, $dfid, null, $force);
if ($ret !== true)
{
return $ret;
}
}
break;
case 'file':
// Translate path for the FTP account
$dfid = $pathObject->clean(str_replace(JPATH_ROOT, $FTPOptions['root'], $dfid), '/');
if (!$ftp->store($sfid, $dfid))
{
throw new RuntimeException('Copy file failed', -1);
}
break;
}
}
}
else
{
if (!($dh = @opendir($src)))
{
throw new RuntimeException('Cannot open source folder', -1);
}
// Walk through the directory copying files and recursing into folders.
while (($file = readdir($dh)) !== false)
{
$sfid = $src . '/' . $file;
$dfid = $dest . '/' . $file;
switch (filetype($sfid))
{
case 'dir':
if ($file != '.' && $file != '..')
{
$ret = self::copy($sfid, $dfid, null, $force, $use_streams);
if ($ret !== true)
{
return $ret;
}
}
break;
case 'file':
if ($use_streams)
{
$stream = JFactory::getStream();
if (!$stream->copy($sfid, $dfid))
{
throw new RuntimeException('Cannot copy file: ' . $stream->getError(), -1);
}
}
else
{
if (!@copy($sfid, $dfid))
{
throw new RuntimeException('Copy file failed', -1);
}
}
break;
}
}
}
return true;
}
/**
* Create a folder -- and all necessary parent folders.
*
* @param string $path A path to create from the base path.
* @param integer $mode Directory permissions to set for folders created. 0755 by default.
*
* @return boolean True if successful.
*
* @since 11.1
*/
public static function create($path = '', $mode = 0755)
{
$FTPOptions = JClientHelper::getCredentials('ftp');
static $nested = 0;
// Check to make sure the path valid and clean
$pathObject = new JFilesystemWrapperPath;
$path = $pathObject->clean($path);
// Check if parent dir exists
$parent = dirname($path);
if (!self::exists($parent))
{
// Prevent infinite loops!
$nested++;
if (($nested > 20) || ($parent == $path))
{
JLog::add(__METHOD__ . ': ' . JText::_('JLIB_FILESYSTEM_ERROR_FOLDER_LOOP'), JLog::WARNING, 'jerror');
$nested--;
return false;
}
// Create the parent directory
if (self::create($parent, $mode) !== true)
{
// JFolder::create throws an error
$nested--;
return false;
}
// OK, parent directory has been created
$nested--;
}
// Check if dir already exists
if (self::exists($path))
{
return true;
}
// Check for safe mode
if ($FTPOptions['enabled'] == 1)
{
// Connect the FTP client
$ftp = JClientFtp::getInstance($FTPOptions['host'], $FTPOptions['port'], array(), $FTPOptions['user'], $FTPOptions['pass']);
// Translate path to FTP path
$path = $pathObject->clean(str_replace(JPATH_ROOT, $FTPOptions['root'], $path), '/');
$ret = $ftp->mkdir($path);
$ftp->chmod($path, $mode);
}
else
{
// We need to get and explode the open_basedir paths
$obd = ini_get('open_basedir');
// If open_basedir is set we need to get the open_basedir that the path is in
if ($obd != null)
{
if (IS_WIN)
{
$obdSeparator = ";";
}
else
{
$obdSeparator = ":";
}
// Create the array of open_basedir paths
$obdArray = explode($obdSeparator, $obd);
$inBaseDir = false;
// Iterate through open_basedir paths looking for a match
foreach ($obdArray as $test)
{
$test = $pathObject->clean($test);
if (strpos($path, $test) === 0)
{
$inBaseDir = true;
break;
}
}
if ($inBaseDir == false)
{
// Return false for JFolder::create because the path to be created is not in open_basedir
JLog::add(__METHOD__ . ': ' . JText::_('JLIB_FILESYSTEM_ERROR_FOLDER_PATH'), JLog::WARNING, 'jerror');
return false;
}
}
// First set umask
$origmask = @umask(0);
// Create the path
if (!$ret = @mkdir($path, $mode))
{
@umask($origmask);
JLog::add(
__METHOD__ . ': ' . JText::_('JLIB_FILESYSTEM_ERROR_COULD_NOT_CREATE_DIRECTORY') . 'Path: ' . $path, JLog::WARNING, 'jerror'
);
return false;
}
// Reset umask
@umask($origmask);
}
return $ret;
}
/**
* Delete a folder.
*
* @param string $path The path to the folder to delete.
*
* @return boolean True on success.
*
* @since 11.1
* @throws UnexpectedValueException
*/
public static function delete($path)
{
@set_time_limit(ini_get('max_execution_time'));
$pathObject = new JFilesystemWrapperPath;
// Sanity check
if (!$path)
{
// Bad programmer! Bad Bad programmer!
JLog::add(__METHOD__ . ': ' . JText::_('JLIB_FILESYSTEM_ERROR_DELETE_BASE_DIRECTORY'), JLog::WARNING, 'jerror');
return false;
}
$FTPOptions = JClientHelper::getCredentials('ftp');
try
{
// Check to make sure the path valid and clean
$path = $pathObject->clean($path);
}
catch (UnexpectedValueException $e)
{
throw $e;
}
// Is this really a folder?
if (!is_dir($path))
{
JLog::add(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
$files = self::files($path, '.', false, true, array(), array());
if (!empty($files))
{
$file = new JFilesystemWrapperFile;
if ($file->delete($files) !== true)
{
// JFile::delete throws an error
return false;
}
}
// Remove sub-folders of folder; disable all filtering
$folders = self::folders($path, '.', false, true, array(), array());
foreach ($folders as $folder)
{
if (is_link($folder))
{
// Don't descend into linked directories, just delete the link.
$file = new JFilesystemWrapperFile;
if ($file->delete($folder) !== true)
{
// JFile::delete throws an error
return false;
}
}
elseif (self::delete($folder) !== true)
{
// JFolder::delete throws an error
return false;
}
}
if ($FTPOptions['enabled'] == 1)
{
// Connect the FTP client
$ftp = JClientFtp::getInstance($FTPOptions['host'], $FTPOptions['port'], array(), $FTPOptions['user'], $FTPOptions['pass']);
}
// In case of restricted permissions we zap it one way or the other
// as long as the owner is either the webserver or the ftp.
if (@rmdir($path))
{
$ret = true;
}
elseif ($FTPOptions['enabled'] == 1)
{
// Translate path and delete
$path = $pathObject->clean(str_replace(JPATH_ROOT, $FTPOptions['root'], $path), '/');
// FTP connector throws an error
$ret = $ftp->delete($path);
}
else
{
JLog::add(JText::sprintf('JLIB_FILESYSTEM_ERROR_FOLDER_DELETE', $path), JLog::WARNING, 'jerror');
$ret = false;
}
return $ret;
}
/**
* Moves a folder.
*
* @param string $src The path to the source folder.
* @param string $dest The path to the destination folder.
* @param string $path An optional base path to prefix to the file names.
* @param boolean $use_streams Optionally use streams.
*
* @return mixed Error message on false or boolean true on success.
*
* @since 11.1
*/
public static function move($src, $dest, $path = '', $use_streams = false)
{
$FTPOptions = JClientHelper::getCredentials('ftp');
$pathObject = new JFilesystemWrapperPath;
if ($path)
{
$src = $pathObject->clean($path . '/' . $src);
$dest = $pathObject->clean($path . '/' . $dest);
}
if (!self::exists($src))
{
return JText::_('JLIB_FILESYSTEM_ERROR_FIND_SOURCE_FOLDER');
}
if (self::exists($dest))
{
return JText::_('JLIB_FILESYSTEM_ERROR_FOLDER_EXISTS');
}
if ($use_streams)
{
$stream = JFactory::getStream();
if (!$stream->move($src, $dest))
{
return JText::sprintf('JLIB_FILESYSTEM_ERROR_FOLDER_RENAME', $stream->getError());
}
$ret = true;
}
else
{
if ($FTPOptions['enabled'] == 1)
{
// Connect the FTP client
$ftp = JClientFtp::getInstance($FTPOptions['host'], $FTPOptions['port'], array(), $FTPOptions['user'], $FTPOptions['pass']);
// Translate path for the FTP account
$src = $pathObject->clean(str_replace(JPATH_ROOT, $FTPOptions['root'], $src), '/');
$dest = $pathObject->clean(str_replace(JPATH_ROOT, $FTPOptions['root'], $dest), '/');
// Use FTP rename to simulate move
if (!$ftp->rename($src, $dest))
{
return JText::_('Rename failed');
}
$ret = true;
}
else
{
if (!@rename($src, $dest))
{
return JText::_('Rename failed');
}
$ret = true;
}
}
return $ret;
}
/**
* Wrapper for the standard file_exists function
*
* @param string $path Folder name relative to installation dir
*
* @return boolean True if path is a folder
*
* @since 11.1
*/
public static function exists($path)
{
$pathObject = new JFilesystemWrapperPath;
return is_dir($pathObject->clean($path));
}
/**
* Utility function to 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 $full 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 filter to exclude
* @param boolean $naturalSort False for asort, true for natsort
*
* @return array Files in the given folder.
*
* @since 11.1
*/
public static function files($path, $filter = '.', $recurse = false, $full = false, $exclude = array('.svn', 'CVS', '.DS_Store', '__MACOSX'),
$excludefilter = array('^\..*', '.*~'), $naturalSort = false)
{
// Check to make sure the path valid and clean
$pathObject = new JFilesystemWrapperPath;
$path = $pathObject->clean($path);
// Is the path a folder?
if (!is_dir($path))
{
JLog::add(JText::sprintf('JLIB_FILESYSTEM_ERROR_PATH_IS_NOT_A_FOLDER_FILES', $path), JLog::WARNING, 'jerror');
return false;
}
// Compute the excludefilter string
if (count($excludefilter))
{
$excludefilter_string = '/(' . implode('|', $excludefilter) . ')/';
}
else
{
$excludefilter_string = '';
}
// Get the files
$arr = self::_items($path, $filter, $recurse, $full, $exclude, $excludefilter_string, true);
// Sort the files based on either natural or alpha method
if ($naturalSort)
{
natsort($arr);
}
else
{
asort($arr);
}
return array_values($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 $full 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 $excludefilter Array with regular expressions matching folders which should not be shown in the result.
*
* @return array Folders in the given folder.
*
* @since 11.1
*/
public static function folders($path, $filter = '.', $recurse = false, $full = false, $exclude = array('.svn', 'CVS', '.DS_Store', '__MACOSX'),
$excludefilter = array('^\..*'))
{
// Check to make sure the path valid and clean
$pathObject = new JFilesystemWrapperPath;
$path = $pathObject->clean($path);
// Is the path a folder?
if (!is_dir($path))
{
JLog::add(JText::sprintf('JLIB_FILESYSTEM_ERROR_PATH_IS_NOT_A_FOLDER_FOLDER', $path), JLog::WARNING, 'jerror');
return false;
}
// Compute the excludefilter string
if (count($excludefilter))
{
$excludefilter_string = '/(' . implode('|', $excludefilter) . ')/';
}
else
{
$excludefilter_string = '';
}
// Get the folders
$arr = self::_items($path, $filter, $recurse, $full, $exclude, $excludefilter_string, false);
// Sort the folders
asort($arr);
return array_values($arr);
}
/**
* Function to read the files/folders 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 $full 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 string $excludefilter_string Regexp of files to exclude
* @param boolean $findfiles True to read the files, false to read the folders
*
* @return array Files.
*
* @since 11.1
*/
protected static function _items($path, $filter, $recurse, $full, $exclude, $excludefilter_string, $findfiles)
{
@set_time_limit(ini_get('max_execution_time'));
$arr = array();
// Read the source directory
if (!($handle = @opendir($path)))
{
return $arr;
}
while (($file = readdir($handle)) !== false)
{
if ($file != '.' && $file != '..' && !in_array($file, $exclude)
&& (empty($excludefilter_string) || !preg_match($excludefilter_string, $file)))
{
// Compute the fullpath
$fullpath = $path . '/' . $file;
// Compute the isDir flag
$isDir = is_dir($fullpath);
if (($isDir xor $findfiles) && preg_match("/$filter/", $file))
{
// (fullpath is dir and folders are searched or fullpath is not dir and files are searched) and file matches the filter
if ($full)
{
// Full path is requested
$arr[] = $fullpath;
}
else
{
// Filename is requested
$arr[] = $file;
}
}
if ($isDir && $recurse)
{
// Search recursively
if (is_int($recurse))
{
// Until depth 0 is reached
$arr = array_merge($arr, self::_items($fullpath, $filter, $recurse - 1, $full, $exclude, $excludefilter_string, $findfiles));
}
else
{
$arr = array_merge($arr, self::_items($fullpath, $filter, $recurse, $full, $exclude, $excludefilter_string, $findfiles));
}
}
}
}
closedir($handle);
return $arr;
}
/**
* Lists folder in format suitable for tree display.
*
* @param string $path The path of the folder to read.
* @param string $filter A filter for folder names.
* @param integer $maxLevel The maximum number of levels to recursively read, defaults to three.
* @param integer $level The current level, optional.
* @param integer $parent Unique identifier of the parent folder, if any.
*
* @return array Folders in the given folder.
*
* @since 11.1
*/
public static function listFolderTree($path, $filter, $maxLevel = 3, $level = 0, $parent = 0)
{
$dirs = array();
if ($level == 0)
{
$GLOBALS['_JFolder_folder_tree_index'] = 0;
}
if ($level < $maxLevel)
{
$folders = self::folders($path, $filter);
$pathObject = new JFilesystemWrapperPath;
// First path, index foldernames
foreach ($folders as $name)
{
$id = ++$GLOBALS['_JFolder_folder_tree_index'];
$fullName = $pathObject->clean($path . '/' . $name);
$dirs[] = array('id' => $id, 'parent' => $parent, 'name' => $name, 'fullname' => $fullName,
'relname' => str_replace(JPATH_ROOT, '', $fullName));
$dirs2 = self::listFolderTree($fullName, $filter, $maxLevel, $level + 1, $id);
$dirs = array_merge($dirs, $dirs2);
}
}
return $dirs;
}
/**
* Makes path name safe to use.
*
* @param string $path The full path to sanitise.
*
* @return string The sanitised string.
*
* @since 11.1
*/
public static function makeSafe($path)
{
$regex = array('#[^A-Za-z0-9_\\\/\(\)\[\]\{\}\#\$\^\+\.\'~`!@&=;,-]#');
return preg_replace($regex, '', $path);
}
}
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