63 lines
1.2 KiB
PHP
63 lines
1.2 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (c) Alexandre Gomes Gaigalas <alganet@gmail.com>
|
||
|
|
* SPDX-License-Identifier: MIT
|
||
|
|
*/
|
||
|
|
|
||
|
|
declare(strict_types=1);
|
||
|
|
|
||
|
|
namespace Respect\Validation\Rules;
|
||
|
|
|
||
|
|
use finfo;
|
||
|
|
use SplFileInfo;
|
||
|
|
|
||
|
|
use function is_file;
|
||
|
|
use function is_string;
|
||
|
|
use function mb_strpos;
|
||
|
|
|
||
|
|
use const FILEINFO_MIME_TYPE;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validates if the file is a valid image by checking its MIME type.
|
||
|
|
*
|
||
|
|
* @author Danilo Benevides <danilobenevides01@gmail.com>
|
||
|
|
* @author Guilherme Siani <guilherme@siani.com.br>
|
||
|
|
* @author Henrique Moody <henriquemoody@gmail.com>
|
||
|
|
*/
|
||
|
|
final class Image extends AbstractRule
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* @var finfo
|
||
|
|
*/
|
||
|
|
private $fileInfo;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Initializes the rule.
|
||
|
|
*/
|
||
|
|
public function __construct(?finfo $fileInfo = null)
|
||
|
|
{
|
||
|
|
$this->fileInfo = $fileInfo ?: new finfo(FILEINFO_MIME_TYPE);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritDoc}
|
||
|
|
*/
|
||
|
|
public function validate($input): bool
|
||
|
|
{
|
||
|
|
if ($input instanceof SplFileInfo) {
|
||
|
|
return $this->validate($input->getPathname());
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!is_string($input)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!is_file($input)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return mb_strpos((string) $this->fileInfo->file($input), 'image/') === 0;
|
||
|
|
}
|
||
|
|
}
|