/usr/share/php/Icinga/File/FileExtensionFilterIterator.php is in php-icinga 2.1.0-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
namespace Icinga\File;
use FilterIterator;
use Iterator;
/**
* Iterator over files having a specific file extension
*
* Usage example:
* <code>
* <?php
*
* namespace Icinga\Example;
*
* use RecursiveDirectoryIterator;
* use RecursiveIteratorIterator;
* use Icinga\File\FileExtensionFilterIterator;
*
* $markdownFiles = new FileExtensionFilterIterator(
* new RecursiveIteratorIterator(
* new RecursiveDirectoryIterator(__DIR__),
* RecursiveIteratorIterator::SELF_FIRST
* ),
* 'md'
* );
* </code>
*/
class FileExtensionFilterIterator extends FilterIterator
{
/**
* The extension to filter for
*
* @var string
*/
protected $extension;
/**
* Create a new FileExtensionFilterIterator
*
* @param Iterator $iterator Apply filter to this iterator
* @param string $extension The file extension to filter for. The file extension may not contain the leading dot
*/
public function __construct(Iterator $iterator, $extension)
{
$this->extension = '.' . ltrim(strtolower((string) $extension), '.');
parent::__construct($iterator);
}
/**
* Accept files which match the file extension to filter for
*
* @return bool Whether the current element of the iterator is acceptable
* through this filter
*/
public function accept()
{
$current = $this->current();
/** @var $current \SplFileInfo */
if (! $current->isFile()) {
return false;
}
// SplFileInfo::getExtension() is only available since PHP 5 >= 5.3.6
$filename = $current->getFilename();
$sfx = substr($filename, -strlen($this->extension));
return $sfx === false ? false : strtolower($sfx) === $this->extension;
}
}
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