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<?php
/**
* Akeeba Engine
* The modular PHP5 site backup engine
* @copyright Copyright (c)2006-2017 Nicholas K. Dionysopoulos / Akeeba Ltd
* @license GNU GPL version 3 or, at your option, any later version
* @package akeebaengine
*
*/
namespace Akeeba\Engine\Scan;
// Protection against direct access
defined('AKEEBAENGINE') or die();
use Akeeba\Engine\Factory;
/* 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 Smart extends Base
{
public function &getFiles($folder, &$position)
{
$registry = Factory::getConfiguration();
// Was the breakflag set BEFORE starting? -- This workaround is required due to PHP5 defaulting to assigning variables by reference
$breakflag_before_process = $registry->get('volatile.breakflag', false);
// Reset break flag before continuing
$breakflag = false;
// Initialize variables
$arr = array();
$false = false;
if (!@is_dir($folder) && !@is_dir($folder . '/'))
{
return $false;
}
$counter = 0;
$registry = Factory::getConfiguration();
$maxCounter = $registry->get('engine.scan.smart.large_dir_threshold', 100);
$allowBreakflag = ($registry->get('volatile.operation_counter', 0) != 0) && !$breakflag_before_process;
if (!@is_dir($folder))
{
$this->setWarning('Unreadable directory ' . $folder);
return $false;
}
if (!@is_readable($folder))
{
$this->setWarning('Unreadable directory ' . $folder);
return $false;
}
$di = new \DirectoryIterator($folder);
$ds = ($folder == '') || ($folder == '/') || (@substr($folder, -1) == '/') || (@substr($folder, -1) == DIRECTORY_SEPARATOR) ? '' : DIRECTORY_SEPARATOR;
/** @var \DirectoryIterator $file */
foreach ($di as $file)
{
if ($file->isDot())
{
continue;
}
if ($breakflag)
{
break;
}
if ($file->isDir())
{
continue;
}
$dir = $folder . $ds . $file->getFilename();
$data = $dir;
if (_AKEEBA_IS_WINDOWS)
{
$data = Factory::getFilesystemTools()->TranslateWinPath($dir);
}
if ($data)
{
$arr[] = $data;
}
$counter++;
if ($counter >= $maxCounter)
{
$breakflag = $allowBreakflag;
}
}
// Save break flag status
$registry->set('volatile.breakflag', $breakflag);
return $arr;
}
public function &getFolders($folder, &$position)
{
// Was the breakflag set BEFORE starting? -- This workaround is required due to PHP5 defaulting to assigning variables by reference
$registry = Factory::getConfiguration();
$breakflag_before_process = $registry->get('volatile.breakflag', false);
// Reset break flag before continuing
$breakflag = false;
// Initialize variables
$arr = array();
$false = false;
if (!is_dir($folder) && !is_dir($folder . '/'))
{
return $false;
}
$counter = 0;
$registry = Factory::getConfiguration();
$maxCounter = $registry->get('engine.scan.smart.large_dir_threshold', 100);
$allowBreakflag = ($registry->get('volatile.operation_counter', 0) != 0) && !$breakflag_before_process;
if (!@is_readable($folder))
{
$this->setWarning('Unreadable directory ' . $folder);
return $false;
}
$di = new \DirectoryIterator($folder);
$ds = ($folder == '') || ($folder == '/') || (@substr($folder, -1) == '/') || (@substr($folder, -1) == DIRECTORY_SEPARATOR) ? '' : DIRECTORY_SEPARATOR;
/** @var \DirectoryIterator $file */
foreach ($di as $file)
{
if ($breakflag)
{
break;
}
if ($file->isDot())
{
continue;
}
if (!$file->isDir())
{
continue;
}
$dir = $folder . $ds . $file->getFilename();
$data = $dir;
if (_AKEEBA_IS_WINDOWS)
{
$data = Factory::getFilesystemTools()->TranslateWinPath($dir);
}
if ($data)
{
$arr[] = $data;
}
$counter++;
if ($counter >= $maxCounter)
{
$breakflag = $allowBreakflag;
}
}
// Save break flag status
$registry->set('volatile.breakflag', $breakflag);
return $arr;
}
}
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