<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\HttpFoundation\File\MimeType;
use Symfony\Component\HttpFoundation\File\Exception\FileNotFoundException;
use Symfony\Component\HttpFoundation\File\Exception\AccessDeniedException;
/**
* Guesses the mime type using the PECL extension FileInfo.
*
* @author Bernhard Schussek <[email protected]>
*/
class FileinfoMimeTypeGuesser implements MimeTypeGuesserInterface
{
private $magicFile;
/**
* Constructor.
*
* @param string $magicFile A magic file to use with the finfo instance
*
* @link http://www.php.net/manual/en/function.finfo-open.php
*/
public function __construct($magicFile = null)
{
$this->magicFile = $magicFile;
}
/**
* Returns whether this guesser is supported on the current OS/PHP setup.
*
* @return bool
*/
public static function isSupported()
{
return function_exists('finfo_open');
}
/**
* {@inheritdoc}
*/
public function guess($path)
{
if (!is_file($path)) {
throw new FileNotFoundException($path);
}
if (!is_readable($path)) {
throw new AccessDeniedException($path);
}
if (!self::isSupported()) {
return;
}
if (!$finfo = new \finfo(FILEINFO_MIME_TYPE, $this->magicFile)) {
return;
}
return $finfo->file($path);
}
}