109 lines
4.0 KiB
PHP
109 lines
4.0 KiB
PHP
<?php
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declare(strict_types=1);
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/*
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* This file is part of the TYPO3 CMS project.
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*
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* It is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, either version 2
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* of the License, or any later version.
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*
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* For the full copyright and license information, please read the
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* LICENSE.txt file that was distributed with this source code.
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*
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* The TYPO3 project - inspiring people to share!
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*/
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namespace TYPO3\CMS\Extbase\Validation\Validator;
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use TYPO3\CMS\Core\Http\UploadedFile;
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use TYPO3\CMS\Core\Utility\GeneralUtility;
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use TYPO3\CMS\Extbase\Persistence\ObjectStorage;
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use TYPO3\CMS\Extbase\Validation\Exception\InvalidValidationOptionsException;
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/**
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* Validator file extensions of a given UploadedFile or ObjectStorage of UploadedFile objects.
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*/
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final class FileExtensionValidator extends AbstractValidator
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{
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protected string $notAllowedMessage = 'LLL:EXT:extbase/Resources/Private/Language/locallang.xlf:validation.fileextension.notallowed';
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protected array $translationOptions = ['notAllowedMessage'];
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/**
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* @var array
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*/
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protected $supportedOptions = [
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'allowedFileExtensions' => [null, 'Allowed file extensions', 'array'],
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'useStorageDefaults' => [null, 'Whether to use the default allowed file extension of the storage', 'bool'],
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'notAllowedMessage' => [null, 'Translation key or message for disallowed file extension', 'string'],
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];
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public function isValid(mixed $value): void
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{
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$this->ensureFileUploadTypes($value);
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$this->validateOptions();
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if ($value instanceof UploadedFile) {
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$this->validateUploadedFile($value);
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} elseif ($value instanceof ObjectStorage && $value->count() > 0) {
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$index = 0;
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foreach ($value as $uploadedFile) {
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$this->validateUploadedFile($uploadedFile, $index);
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$index++;
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}
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}
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}
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private function validateUploadedFile(UploadedFile $uploadedFile, ?int $index = null): void
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{
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$allowedFileExtensions = [];
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if (!empty($this->options['useStorageDefaults'])) {
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$allowedFileExtensions = GeneralUtility::trimExplode(
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',',
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($GLOBALS['TYPO3_CONF_VARS']['SYS']['textfile_ext'] ?? '') . ','
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. ($GLOBALS['TYPO3_CONF_VARS']['SYS']['mediafile_ext'] ?? '') . ','
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. ($GLOBALS['TYPO3_CONF_VARS']['SYS']['miscfile_ext'] ?? ''),
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true
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);
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}
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if (is_array($this->options['allowedFileExtensions'] ?? null)) {
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$allowedFileExtensions = array_merge($allowedFileExtensions, $this->options['allowedFileExtensions']);
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}
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$allowedFileExtensions = array_map(mb_strtolower(...), $allowedFileExtensions);
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$fileExtension = pathinfo($uploadedFile->getClientFilename(), PATHINFO_EXTENSION);
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if (!in_array($fileExtension, $allowedFileExtensions, true)) {
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$message = $this->translateErrorMessage(
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$this->notAllowedMessage,
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'',
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[$fileExtension]
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);
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$code = 1754043401;
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if ($index !== null) {
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$this->addErrorForProperty((string)$index, $message, $code);
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} else {
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$this->addError($message, $code);
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}
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}
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}
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/**
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* Checks if this validator is correctly configured
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*/
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private function validateOptions(): void
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{
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$hasAllowedFileExtensions = is_array($this->options['allowedFileExtensions'] ?? null)
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&& $this->options['allowedFileExtensions'] !== [];
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$shallUseStorageDefaults = !empty($this->options['useStorageDefaults']);
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if (!$hasAllowedFileExtensions && !$shallUseStorageDefaults) {
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throw new InvalidValidationOptionsException(
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'Either the option "allowedFileExtensions" must be an array with at least one item, '
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. 'or the option "useStorageDefaults" must be enabled.',
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1754043328
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);
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}
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}
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}
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