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<?php
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namespace TYPO3\CMS\Extbase\Service;
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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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use TYPO3\CMS\Core\LinkHandling\LinkService;
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use TYPO3\CMS\Core\Resource\File;
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use TYPO3\CMS\Core\Resource\FileInterface;
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use TYPO3\CMS\Core\Resource\FileReference;
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use TYPO3\CMS\Core\Resource\ProcessedFile;
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use TYPO3\CMS\Core\Resource\ResourceFactory;
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use TYPO3\CMS\Core\Utility\GeneralUtility;
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use TYPO3\CMS\Core\Utility\MathUtility;
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/**
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* Service for processing images
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*/
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class ImageService implements \TYPO3\CMS\Core\SingletonInterface
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{
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/**
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* @var ResourceFactory
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*/
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protected $resourceFactory;
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/**
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* @var EnvironmentService
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*/
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protected $environmentService;
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/**
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* ImageService constructor.
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*
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* @param EnvironmentService|null $environmentService
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* @param ResourceFactory|null $resourceFactory
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*/
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public function __construct(EnvironmentService $environmentService = null, ResourceFactory $resourceFactory = null)
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{
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$this->environmentService = $environmentService ?? GeneralUtility::makeInstance(EnvironmentService::class);
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$this->resourceFactory = $resourceFactory ?? ResourceFactory::getInstance();
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}
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/**
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* Create a processed file
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*
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* @param FileInterface|FileReference $image
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* @param array $processingInstructions
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* @return ProcessedFile
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*/
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public function applyProcessingInstructions($image, $processingInstructions)
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{
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if (is_callable([$image, 'getOriginalFile'])) {
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// Get the original file from the file reference
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$image = $image->getOriginalFile();
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}
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$processedImage = $image->process(ProcessedFile::CONTEXT_IMAGECROPSCALEMASK, $processingInstructions);
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$this->setCompatibilityValues($processedImage);
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return $processedImage;
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}
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/**
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* Get public url of image depending on the environment
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*
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* @param FileInterface $image
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* @param bool|false $absolute Force absolute URL
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* @return string
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*/
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public function getImageUri(FileInterface $image, $absolute = false)
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{
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$imageUrl = $image->getPublicUrl();
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$parsedUrl = parse_url($imageUrl);
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// no prefix in case of an already fully qualified URL
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if (isset($parsedUrl['host'])) {
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$uriPrefix = '';
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} elseif ($this->environmentService->isEnvironmentInFrontendMode()) {
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$uriPrefix = $GLOBALS['TSFE']->absRefPrefix;
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} else {
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$uriPrefix = GeneralUtility::getIndpEnv('TYPO3_SITE_PATH');
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}
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if ($absolute) {
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// If full URL has no scheme we add the same scheme as used by the site
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// so we have an absolute URL also usable outside of browser scope (e.g. in an email message)
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if (isset($parsedUrl['host']) && !isset($parsedUrl['scheme'])) {
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$uriPrefix = (GeneralUtility::getIndpEnv('TYPO3_SSL') ? 'https:' : 'http:') . $uriPrefix;
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}
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return GeneralUtility::locationHeaderUrl($uriPrefix . $imageUrl);
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}
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return $uriPrefix . $imageUrl;
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}
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/**
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* Get File or FileReference object
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*
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* This method is a factory and compatibility method that does not belong to
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* this service, but is put here for pragmatic reasons for the time being.
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* It should be removed once we do not support string sources for images anymore.
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*
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* @param string $src
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* @param mixed $image
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* @param bool $treatIdAsReference
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* @return FileInterface|FileReference
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* @throws \UnexpectedValueException
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* @internal
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*/
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public function getImage($src, $image, $treatIdAsReference)
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{
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if ($image === null) {
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$image = $this->getImageFromSourceString($src, $treatIdAsReference);
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} elseif (is_callable([$image, 'getOriginalResource'])) {
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// We have a domain model, so we need to fetch the FAL resource object from there
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$image = $image->getOriginalResource();
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}
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if (!($image instanceof File || $image instanceof FileReference)) {
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$class = is_object($image) ? get_class($image) : 'null';
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throw new \UnexpectedValueException('Supplied file object type ' . $class . ' for ' . $src . ' must be File or FileReference.', 1382687163);
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}
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return $image;
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}
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/**
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* Get File or FileReference object by src
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*
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* @param string $src
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* @param bool $treatIdAsReference
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* @return FileInterface|FileReference|\TYPO3\CMS\Core\Resource\Folder
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*/
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protected function getImageFromSourceString($src, $treatIdAsReference)
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{
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if ($this->environmentService->isEnvironmentInBackendMode() && strpos($src, '../') === 0) {
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$src = substr($src, 3);
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}
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if (MathUtility::canBeInterpretedAsInteger($src)) {
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if ($treatIdAsReference) {
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$image = $this->resourceFactory->getFileReferenceObject($src);
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} else {
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$image = $this->resourceFactory->getFileObject($src);
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}
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} elseif (strpos($src, 't3://file') === 0) {
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// We have a t3://file link to a file in FAL
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$linkService = GeneralUtility::makeInstance(LinkService::class);
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$data = $linkService->resolveByStringRepresentation($src);
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$image = $data['file'];
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} else {
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// We have a combined identifier or legacy (storage 0) path
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$image = $this->resourceFactory->retrieveFileOrFolderObject($src);
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}
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return $image;
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}
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/**
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* Set compatibility values to frontend controller object
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* in case we are in frontend environment.
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*
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* @param ProcessedFile $processedImage
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*/
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protected function setCompatibilityValues(ProcessedFile $processedImage)
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{
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if ($this->environmentService->isEnvironmentInFrontendMode()) {
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$GLOBALS['TSFE']->lastImageInfo = $this->getCompatibilityImageResourceValues($processedImage);
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$GLOBALS['TSFE']->imagesOnPage[] = $processedImage->getPublicUrl();
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}
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}
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/**
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* Calculates the compatibility values
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* This is duplicate code taken from ContentObjectRenderer::getImgResource()
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* Ideally we should get rid of this code in both places.
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*
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* @param ProcessedFile $processedImage
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* @return array
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*/
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protected function getCompatibilityImageResourceValues(ProcessedFile $processedImage)
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{
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return [
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0 => $processedImage->getProperty('width'),
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1 => $processedImage->getProperty('height'),
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2 => $processedImage->getExtension(),
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3 => $processedImage->getPublicUrl(),
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'origFile' => $processedImage->getOriginalFile()->getPublicUrl(),
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'origFile_mtime' => $processedImage->getOriginalFile()->getModificationTime(),
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// This is needed by \TYPO3\CMS\Frontend\Imaging\GifBuilder,
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// in order for the setup-array to create a unique filename hash.
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'originalFile' => $processedImage->getOriginalFile(),
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'processedFile' => $processedImage
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];
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}
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}
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