86 lines
3.7 KiB
PHP
86 lines
3.7 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\Backend\Resource\Processing;
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use Psr\Http\Message\ServerRequestInterface;
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use TYPO3\CMS\Backend\Routing\UriBuilder;
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use TYPO3\CMS\Core\Context\Context;
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use TYPO3\CMS\Core\Http\ApplicationType;
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use TYPO3\CMS\Core\Imaging\Exception\ZeroImageDimensionException;
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use TYPO3\CMS\Core\Imaging\ImageDimension;
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use TYPO3\CMS\Core\Resource\ProcessedFileRepository;
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use TYPO3\CMS\Core\Resource\Processing\ProcessorInterface;
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use TYPO3\CMS\Core\Resource\Processing\TaskInterface;
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use TYPO3\CMS\Core\Utility\GeneralUtility;
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/**
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* @internal This class is a specific Backend controller implementation and is not considered part of the Public TYPO3 API.
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*/
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class DeferredBackendImageProcessor implements ProcessorInterface
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{
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public function canProcessTask(TaskInterface $task): bool
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{
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$context = GeneralUtility::makeInstance(Context::class);
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return ($GLOBALS['TYPO3_REQUEST'] ?? null) instanceof ServerRequestInterface
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&& ApplicationType::fromRequest($GLOBALS['TYPO3_REQUEST'])->isBackend()
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&& $task->getType() === 'Image'
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&& in_array($task->getName(), ['Preview', 'CropScaleMask'], true)
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&& (!$context->hasAspect('fileProcessing') || $context->getPropertyFromAspect('fileProcessing', 'deferProcessing'))
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&& $task->getSourceFile()->getProperty('width') > 0
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&& $task->getSourceFile()->getProperty('height') > 0
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// Let the local image processor update the properties in case the target file exists already
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&& !$task->getSourceFile()->getStorage()->getProcessingFolder($task->getSourceFile())->hasFile($task->getTargetFileName());
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}
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public function processTask(TaskInterface $task): void
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{
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try {
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$imageDimension = ImageDimension::fromProcessingTask($task);
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} catch (ZeroImageDimensionException $e) {
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// To not fail image processing, we just assume an image dimension here
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$imageDimension = new ImageDimension(64, 64);
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}
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$processedFile = $task->getTargetFile();
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if (!$processedFile->isPersisted()) {
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// For now, we need to persist the processed file in the repository to be able to reference its uid
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// We could instead introduce a processing queue and persist the information there
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$processedFileRepository = GeneralUtility::makeInstance(ProcessedFileRepository::class);
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$processedFileRepository->add($processedFile, $task);
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}
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$processedFile->setName($task->getTargetFileName());
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$processingUrl = (string)GeneralUtility::makeInstance(UriBuilder::class)
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->buildUriFromRoute(
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'image_processing',
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[
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'id' => $processedFile->getUid(),
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]
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);
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// We know $GLOBALS['TYPO3_REQUEST'] exists and is BE because of canProcessTask()
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$processedFile->updateProcessingUrl(GeneralUtility::locationHeaderUrl($processingUrl, $GLOBALS['TYPO3_REQUEST']));
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$processedFile->updateProperties(
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[
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'width' => $imageDimension->getWidth(),
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'height' => $imageDimension->getHeight(),
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'size' => 0,
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'checksum' => $task->getConfigurationChecksum(),
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]
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);
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$task->setExecuted(true);
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}
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}
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