CoiSA\Http\Message\UploadedFile\Filter\ExtensionFilter

Complexity

Total Complexity

4

Size/Duplication

Total Lines	35
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	1
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	filter()	0	13	3
A	__construct()	0	3	1

<?php

/**
 * This file is part of coisa/http.
 *
 * (c) Felipe Sayão Lobato Abreu <github@felipeabreu.com.br>
 *
 * This source file is subject to the license that is bundled
 * with this source code in the file LICENSE.
 */

declare(strict_types=1);

namespace CoiSA\Http\Message\UploadedFile\Filter;

use CoiSA\Http\Message\UploadedFile\FilterInterface;
use Psr\Http\Message\UploadedFileInterface;

/**
 * Class ExtensionFilter
 *
 * @package CoiSA\Http\Message\UploadedFile
 */
final class ExtensionFilter implements FilterInterface
{
    /**
     * @var string
     */
    private $extension;

    /**
     * ExtensionFilter constructor.
     *
     * @param string $extension
     */
    public function __construct(string $extension)
    {
        $this->extension = \ltrim($extension, '.');
    }

    /**
     * @param UploadedFileInterface ...$uploadedFiles
     *
     * @return \Iterator
     */
    public function filter(UploadedFileInterface ...$uploadedFiles): \Iterator
    {
        foreach ($uploadedFiles as $uploadedFile) {
            $extension = \pathinfo(
                $uploadedFile->getClientFilename(),
                PATHINFO_EXTENSION
            );

            if ($extension !== $this->extension) {
                continue;
            }

            yield $uploadedFile;
        }
    }
}