Current Directory: /home/astoriaah/www/old15/administrator/components/com_admintools/akeeba/engines/scan
Viewing File: /home/astoriaah/www/old15/administrator/components/com_admintools/akeeba/engines/scan/large.php
<?php
/**
* Akeeba Engine
* The modular PHP5 site backup engine
* @copyright Copyright (c)2009-2014 Nicholas K. Dionysopoulos
* @license GNU GPL version 3 or, at your option, any later version
* @package akeebaengine
*
*/
// Protection against direct access
defined('AKEEBAENGINE') or die();
/* Windows system detection */
if (!defined('_AKEEBA_IS_WINDOWS'))
{
if (function_exists('php_uname'))
{
define('_AKEEBA_IS_WINDOWS', stristr(php_uname(), 'windows'));
}
else
{
define('_AKEEBA_IS_WINDOWS', DIRECTORY_SEPARATOR == '\\');
}
}
/**
* A filesystem scanner which uses opendir() and is smart enough to make large directories
* be scanned inside a step of their own.
*
* The idea is that if it's not the first operation of this step and the number of contained
* directories AND files is more than double the number of allowed files per fragment, we should
* break the step immediately.
*
*/
class AEScanLarge extends AEAbstractScan
{
public function &getFiles($folder, &$position)
{
$result = $this->scanFolder($folder, $position, false, $threshold_key = 'file', $threshold_default = 100);
return $result;
}
public function &getFolders($folder, &$position)
{
$result = $this->scanFolder($folder, $position);
return $result;
}
protected function scanFolder($folder, &$position, $forFolders = true, $threshold_key = 'dir', $threshold_default = 50)
{
$registry = AEFactory::getConfiguration();
// Initialize variables
$arr = array();
$false = false;
if (!is_dir($folder) && !is_dir($folder . '/'))
{
return $false;
}
try
{
$di = new DirectoryIterator($folder);
}
catch (Exception $e)
{
$this->setWarning('Unreadable directory ' . $folder);
return $false;
}
if (!$di->valid())
{
$this->setWarning('Unreadable directory ' . $folder);
return $false;
}
if (!empty($position))
{
$di->seek($position);
if ($di->key() != $position)
{
$position = null;
return $arr;
}
}
$counter = 0;
$maxCounter = $registry->get("engine.scan.large.{$threshold_key}_threshold", $threshold_default);
while($di->valid())
{
if ($di->isDot())
{
$di->next();
continue;
}
if ($di->isDir() != $forFolders)
{
$di->next();
continue;
}
$ds = ($folder == '') || ($folder == '/') || (@substr($folder, -1) == '/') || (@substr($folder, -1) == DIRECTORY_SEPARATOR) ? '' : DIRECTORY_SEPARATOR;
$dir = $folder . $ds . $di->getFilename();
$data = _AKEEBA_IS_WINDOWS ? AEUtilFilesystem::TranslateWinPath($dir) : $dir;
if ($data)
{
$counter++;
$arr[] = $data;
}
if ($counter == $maxCounter)
{
break;
}
else
{
$di->next();
}
}
// Determine the new value for the position
$di->next();
if ($di->valid())
{
$position = $di->key() - 1;
}
else
{
$position = null;
}
return $arr;
}
}