64 lines
1.6 KiB
PHP
64 lines
1.6 KiB
PHP
<?php
|
|
|
|
/*
|
|
* This file is part of the Symfony package.
|
|
*
|
|
* (c) Fabien Potencier <fabien@symfony.com>
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
namespace Symfony\Component\Mime;
|
|
|
|
use Symfony\Component\Mime\Exception\InvalidArgumentException;
|
|
use Symfony\Component\Mime\Exception\LogicException;
|
|
|
|
/**
|
|
* Guesses the MIME type using the PECL extension FileInfo.
|
|
*
|
|
* @author Bernhard Schussek <bschussek@gmail.com>
|
|
*/
|
|
class FileinfoMimeTypeGuesser implements MimeTypeGuesserInterface
|
|
{
|
|
private $magicFile;
|
|
|
|
/**
|
|
* @param string $magicFile A magic file to use with the finfo instance
|
|
*
|
|
* @see http://www.php.net/manual/en/function.finfo-open.php
|
|
*/
|
|
public function __construct(string $magicFile = null)
|
|
{
|
|
$this->magicFile = $magicFile;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function isGuesserSupported(): bool
|
|
{
|
|
return \function_exists('finfo_open');
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function guessMimeType(string $path): ?string
|
|
{
|
|
if (!is_file($path) || !is_readable($path)) {
|
|
throw new InvalidArgumentException(sprintf('The "%s" file does not exist or is not readable.', $path));
|
|
}
|
|
|
|
if (!$this->isGuesserSupported()) {
|
|
throw new LogicException(sprintf('The "%s" guesser is not supported.', __CLASS__));
|
|
}
|
|
|
|
if (false === $finfo = new \finfo(FILEINFO_MIME_TYPE, $this->magicFile)) {
|
|
return null;
|
|
}
|
|
|
|
return $finfo->file($path);
|
|
}
|
|
}
|