9.5/_mime_type_validator_8php_source.html

<?php

declare(strict_types = 1);

namespace ‪TYPO3\CMS\Form\Mvc\Validation;


/*

 * This file is part of the TYPO3 CMS project.

 *

 * It is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, either version 2

 * of the License, or any later version.

 *

 * For the full copyright and license information, please read the

 * LICENSE.txt file that was distributed with this source code.

 *

 * The TYPO3 project - inspiring people to share!

 */


use ‪TYPO3\CMS\Core\Resource\File;

use ‪TYPO3\CMS\Core\Resource\MimeTypeDetector;

use ‪TYPO3\CMS\Extbase\Domain\Model\FileReference;

use ‪TYPO3\CMS\Extbase\Validation\Validator\AbstractValidator;

use ‪TYPO3\CMS\Form\Mvc\Property\TypeConverter\PseudoFile;

use ‪TYPO3\CMS\Form\Mvc\Validation\Exception\InvalidValidationOptionsException;


class ‪MimeTypeValidator extends ‪AbstractValidator

{

    protected ‪$supportedOptions = [

        'allowedMimeTypes' => [null, 'Allowed mime types (using */* IANA media types)', 'array', true]

    ];


    public function ‪isValid($resource)

    {

        $this->‪validateOptions();


        if ($resource instanceof ‪FileReference) {

            $mimeType = $resource->getOriginalResource()->getMimeType();

            $fileExtension = $resource->getOriginalResource()->getExtension();

        } elseif ($resource instanceof ‪File) {

            $mimeType = $resource->getMimeType();

            $fileExtension = $resource->getExtension();

        } elseif ($resource instanceof ‪PseudoFile) {

            $mimeType = $resource->getMimeType();

            $fileExtension = $resource->getExtension();

        } else {

            $this->‪addError(

                $this->‪translateErrorMessage(

                    'validation.error.1471708997',

                    'form'

                ),

                1471708997

            );

            return;

        }


        $allowedMimeTypes = $this->options['allowedMimeTypes'];

        if (!in_array($mimeType, $allowedMimeTypes, true)) {

            $this->‪addError(

                $this->‪translateErrorMessage(

                    'validation.error.1471708998',

                    'form',

                    [$mimeType]

                ),

                1471708998,

                [$mimeType]

            );

        } else {

            // The mime-type which was detected by FAL matches, but the file name does not match.

            // Example: myfile.txt is actually a PDF file (defined by mime-type), but .txt is not associated

            // for application/pdf, so this is not valid. The file extension of the uploaded file must match

            // the mime-type for this file.

            $assumedMimesTypeOfFileExtension = (new ‪MimeTypeDetector())->getMimeTypesForFileExtension($fileExtension);

            if (empty(array_intersect($allowedMimeTypes, $assumedMimesTypeOfFileExtension))) {

                $this->‪addError(

                    $this->‪translateErrorMessage(

                        'validation.error.1613126216',

                        'form',

                        [$fileExtension]

                    ) ?? '',

                    1613126216,

                    [$fileExtension]

                );

            }

        }

    }


    protected function ‪validateOptions()

    {

        if (!is_array($this->options['allowedMimeTypes']) || $this->options['allowedMimeTypes'] === []) {

            throw new ‪InvalidValidationOptionsException('The option "allowedMimeTypes" must be an array with at least one item.', 1471713296);

        }

    }

}