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<?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\Install\Updates; |
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use TYPO3\CMS\Core\Resource\Exception\InsufficientFolderAccessPermissionsException; |
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use TYPO3\CMS\Core\Resource\File; |
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use TYPO3\CMS\Core\Resource\Filter\FileExtensionFilter; |
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use TYPO3\CMS\Core\Resource\ResourceStorage; |
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use TYPO3\CMS\Core\Resource\Security\SvgSanitizer; |
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use TYPO3\CMS\Core\Resource\StorageRepository; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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class SvgFilesSanitization implements UpgradeWizardInterface, ConfirmableInterface |
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{ |
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/** |
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* @var StorageRepository |
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*/ |
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protected $storageRepository; |
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/** |
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* @var Confirmation |
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*/ |
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protected $confirmation; |
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public function __construct() |
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{ |
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$this->storageRepository = GeneralUtility::makeInstance(StorageRepository::class); |
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$this->confirmation = new Confirmation( |
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'Continue sanitizing SVG files?', |
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$this->getDescription(), |
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false, |
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'sanitize, backup available', |
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'cancel', |
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false |
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); |
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} |
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/** |
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* Return the identifier for this wizard |
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* This should be the same string as used in the ext_localconf class registration |
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* |
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* @return string |
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*/ |
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public function getIdentifier(): string |
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{ |
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// needs to be static for exact reference |
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return 'TYPO3\CMS\Install\Updates\SvgFilesSanitization'; |
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} |
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/** |
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* Return the speaking name of this wizard |
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* |
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* @return string |
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*/ |
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public function getTitle(): string |
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{ |
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return 'Sanitize existing SVG files in fileadmin folder'; |
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} |
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/** |
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* Return the description for this wizard |
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* |
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* @return string |
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*/ |
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public function getDescription(): string |
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{ |
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return 'This upgrade wizard will sanitize all SVG files located in local file storages. ' |
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. 'It is very likely that file contents will be changed.' . "\n" |
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. 'Before continuing, please ensure a proper backup of *.svg and *.svgz files is in place before continuing.'; |
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} |
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/** |
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* Is an update necessary? |
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* |
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* Is used to determine whether a wizard needs to be run. |
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* Check if data for migration exists. |
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* |
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* @return bool |
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*/ |
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public function updateNecessary(): bool |
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{ |
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foreach ($this->resolveLocalStorages() as $storage) { |
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try { |
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$svgFiles = $this->resolveSvgFiles($storage); |
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} catch (InsufficientFolderAccessPermissionsException $exception) { |
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continue; |
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} |
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if (count($svgFiles) > 0) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Execute the update |
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* |
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* Called when a wizard reports that an update is necessary |
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* |
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* @return bool |
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*/ |
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public function executeUpdate(): bool |
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{ |
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return $this->processSvgFiles(); |
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} |
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/** |
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* Returns an array of class names of Prerequisite classes |
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* |
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* This way a wizard can define dependencies like "database up-to-date" or |
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* "reference index updated" |
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* |
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* @return string[] |
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*/ |
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public function getPrerequisites(): array |
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{ |
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return []; |
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} |
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/** |
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* Return a confirmation message instance |
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* |
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* @return Confirmation |
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*/ |
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public function getConfirmation(): Confirmation |
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{ |
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return $this->confirmation; |
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} |
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/** |
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* @return ResourceStorage[] |
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*/ |
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protected function resolveLocalStorages(): array |
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{ |
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return array_filter( |
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$this->storageRepository->findByStorageType('Local'), |
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function (ResourceStorage $storage) { |
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return $storage->isWritable(); |
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} |
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); |
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} |
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/** |
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* @param ResourceStorage $storage |
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* @return File[] |
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* @throws InsufficientFolderAccessPermissionsException |
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*/ |
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protected function resolveSvgFiles(ResourceStorage $storage): array |
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{ |
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$filter = GeneralUtility::makeInstance(FileExtensionFilter::class); |
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$filter->setAllowedFileExtensions(['svg', 'svgz']); |
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return $storage |
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->setFileAndFolderNameFilters([[$filter, 'filterFileList']]) |
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->getFilesInFolder( |
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$storage->getRootLevelFolder(), |
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0, |
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0, |
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true, |
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true |
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); |
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} |
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protected function processSvgFiles(): bool |
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{ |
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$successful = true; |
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$sanitizer = GeneralUtility::makeInstance(SvgSanitizer::class); |
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foreach ($this->resolveLocalStorages() as $storage) { |
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try { |
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$svgFiles = $this->resolveSvgFiles($storage); |
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} catch (InsufficientFolderAccessPermissionsException $exception) { |
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// @todo Add notice/warning for this upgrade process |
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$successful = false; |
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continue; |
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} |
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foreach ($svgFiles as $svgFile) { |
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$oldFileContent = $svgFile->getContents(); |
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$newFileContent = $sanitizer->sanitizeContent($oldFileContent); |
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if ($oldFileContent !== $newFileContent) { |
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$svgFile->setContents($newFileContent); |
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} |
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} |
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} |
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return $successful; |
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} |
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} |
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