LocalCropScaleMaskHelper.php

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<?php
 
/*
 * 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!
 */
 
namespace ‪TYPO3\CMS\Core\Resource\Processing;
 
use ‪TYPO3\CMS\Core\Core\Environment;
use ‪TYPO3\CMS\Core\Resource\FileInterface;
use ‪TYPO3\CMS\Core\Resource\ProcessedFile;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use ‪TYPO3\CMS\Core\Utility\MathUtility;
use ‪TYPO3\CMS\Frontend\Imaging\GifBuilder;
 
class ‪LocalCropScaleMaskHelper
{
    public function ‪process(‪TaskInterface $task)
    {
        return $this->‪processWithLocalFile($task, $task->‪getSourceFile()->‪getForLocalProcessing(false));
    }
 
    public function ‪processWithLocalFile(‪TaskInterface $task, string $originalFileName): ?array
    {
        $result = null;
        $targetFile = $task->‪getTargetFile();
 
        $gifBuilder = GeneralUtility::makeInstance(GifBuilder::class);
 
        $configuration = $targetFile->getProcessingConfiguration();
        $configuration['additionalParameters'] = $this->‪modifyImageMagickStripProfileParameters((string)($configuration['additionalParameters'] ?? ''), $configuration);
 
        if (empty($configuration['fileExtension'])) {
            $configuration['fileExtension'] = $task->‪getTargetFileExtension();
        }
 
        $options = $this->‪getConfigurationForImageCropScaleMask($targetFile, $gifBuilder);
 
        $croppedImage = null;
        if (!empty($configuration['crop'])) {
            // check if it is a json object
            $cropData = json_decode($configuration['crop']);
            if ($cropData) {
                $offsetLeft = (int)($cropData->x ?? 0);
                $offsetTop = (int)($cropData->y ?? 0);
                $newWidth = (int)($cropData->width ?? 0);
                $newHeight = (int)($cropData->height ?? 0);
            } else {
                [$offsetLeft, $offsetTop, $newWidth, $newHeight] = explode(',', $configuration['crop'], 4);
            }
 
            $backupPrefix = $gifBuilder->filenamePrefix;
            $gifBuilder->filenamePrefix = 'crop_';
 
            $jpegQuality = ‪MathUtility::forceIntegerInRange(‪$GLOBALS['TYPO3_CONF_VARS']['GFX']['jpg_quality'], 10, 100, 85);
 
            // the result info is an array with 0=width,1=height,2=extension,3=filename
            $result = $gifBuilder->imageMagickConvert(
                $originalFileName,
                $configuration['fileExtension'],
                '',
                '',
                sprintf('-crop %dx%d+%d+%d +repage -quality %d', $newWidth, $newHeight, $offsetLeft, $offsetTop, $jpegQuality),
                '',
                ['noScale' => true],
                true
            );
            $gifBuilder->filenamePrefix = $backupPrefix;
 
            if ($result !== null) {
                $originalFileName = $croppedImage = $result[3];
            }
        }
 
        // Normal situation (no masking)
        if (!(is_array($configuration['maskImages'] ?? null) && ‪$GLOBALS['TYPO3_CONF_VARS']['GFX']['processor_enabled'])) {
            // the result info is an array with 0=width,1=height,2=extension,3=filename
            $result = $gifBuilder->imageMagickConvert(
                $originalFileName,
                $configuration['fileExtension'],
                $configuration['width'] ?? '',
                $configuration['height'] ?? '',
                $configuration['additionalParameters'],
                $configuration['frame'] ?? '',
                $options,
                // in case file is in `/typo3temp/`, it must create a result
                $this->‪isTemporaryFile($originalFileName)
            );
        } else {
            $targetFileName = $this->‪getFilenameForImageCropScaleMask($task);
            $temporaryFileName = ‪Environment::getPublicPath() . '/typo3temp/' . $targetFileName;
            $maskImage = $configuration['maskImages']['maskImage'] ?? null;
            $maskBackgroundImage = $configuration['maskImages']['backgroundImage'];
            if ($maskImage instanceof ‪FileInterface && $maskBackgroundImage instanceof ‪FileInterface) {
                $temporaryExtension = 'png';
                if (!‪$GLOBALS['TYPO3_CONF_VARS']['GFX']['processor_allowTemporaryMasksAsPng']) {
                    // If ImageMagick version 5+
                    $temporaryExtension = $gifBuilder->gifExtension;
                }
                $tempFileInfo = $gifBuilder->imageMagickConvert(
                    $originalFileName,
                    $temporaryExtension,
                    $configuration['width'] ?? '',
                    $configuration['height'] ?? '',
                    $configuration['additionalParameters'],
                    $configuration['frame'] ?? '',
                    $options
                );
                if (is_array($tempFileInfo)) {
                    $maskBottomImage = $configuration['maskImages']['maskBottomImage'];
                    if ($maskBottomImage instanceof ‪FileInterface) {
                        $maskBottomImageMask = $configuration['maskImages']['maskBottomImageMask'];
                    } else {
                        $maskBottomImageMask = null;
                    }
 
                    //  Scaling:    ****
                    $tempScale = [];
                    $command = '-geometry ' . $tempFileInfo[0] . 'x' . $tempFileInfo[1] . '!';
                    $command = $this->‪modifyImageMagickStripProfileParameters($command, $configuration);
                    $tmpStr = $gifBuilder->randomName();
                    //  m_mask
                    $tempScale['m_mask'] = $tmpStr . '_mask.' . $temporaryExtension;
                    $gifBuilder->imageMagickExec($maskImage->getForLocalProcessing(true), $tempScale['m_mask'], $command);
                    //  m_bgImg
                    $tempScale['m_bgImg'] = $tmpStr . '_bgImg.miff';
                    $gifBuilder->imageMagickExec($maskBackgroundImage->getForLocalProcessing(), $tempScale['m_bgImg'], $command);
                    //  m_bottomImg / m_bottomImg_mask
                    if ($maskBottomImage instanceof ‪FileInterface && $maskBottomImageMask instanceof ‪FileInterface) {
                        $tempScale['m_bottomImg'] = $tmpStr . '_bottomImg.' . $temporaryExtension;
                        $gifBuilder->imageMagickExec($maskBottomImage->getForLocalProcessing(), $tempScale['m_bottomImg'], $command);
                        $tempScale['m_bottomImg_mask'] = ($tmpStr . '_bottomImg_mask.') . $temporaryExtension;
                        $gifBuilder->imageMagickExec($maskBottomImageMask->getForLocalProcessing(), $tempScale['m_bottomImg_mask'], $command);
                        // BEGIN combining:
                        // The image onto the background
                        $gifBuilder->combineExec($tempScale['m_bgImg'], $tempScale['m_bottomImg'], $tempScale['m_bottomImg_mask'], $tempScale['m_bgImg']);
                    }
                    // The image onto the background
                    $gifBuilder->combineExec($tempScale['m_bgImg'], $tempFileInfo[3], $tempScale['m_mask'], $temporaryFileName);
                    $tempFileInfo[3] = $temporaryFileName;
                    // Unlink the temp-images...
                    foreach ($tempScale as $tempFile) {
                        if (@is_file($tempFile)) {
                            unlink($tempFile);
                        }
                    }
                }
                $result = $tempFileInfo;
            }
        }
 
        // check if the processing really generated a new file (scaled and/or cropped)
        if ($result !== null) {
            if ($result[3] !== $originalFileName || $originalFileName === $croppedImage) {
                $result = [
                    'width' => $result[0],
                    'height' => $result[1],
                    'filePath' => $result[3],
                ];
            } else {
                // No file was generated
                $result = null;
            }
        }
 
        // Cleanup temp file if it isn't used as result
        if ($croppedImage && ($result === null || $croppedImage !== $result['filePath'])) {
            GeneralUtility::unlink_tempfile($croppedImage);
        }
 
        return $result;
    }
 
    protected function ‪getConfigurationForImageCropScaleMask(‪ProcessedFile $processedFile, ‪GifBuilder $gifBuilder)
    {
        $configuration = $processedFile->‪getProcessingConfiguration();
 
        if ($configuration['useSample'] ?? false) {
            $gifBuilder->scalecmd = '-sample';
        }
        $options = [];
        if ($configuration['maxWidth'] ?? false) {
            $options['maxW'] = $configuration['maxWidth'];
        }
        if ($configuration['maxHeight'] ?? false) {
            $options['maxH'] = $configuration['maxHeight'];
        }
        if ($configuration['minWidth'] ?? false) {
            $options['minW'] = $configuration['minWidth'];
        }
        if ($configuration['minHeight'] ?? false) {
            $options['minH'] = $configuration['minHeight'];
        }
 
        $options['noScale'] = $configuration['noScale'] ?? null;
 
        return $options;
    }
 
    protected function ‪getFilenameForImageCropScaleMask(‪TaskInterface $task)
    {
        $configuration = $task->‪getTargetFile()->‪getProcessingConfiguration();
        $targetFileExtension = $task->‪getSourceFile()->‪getExtension();
        $processedFileExtension = ‪$GLOBALS['TYPO3_CONF_VARS']['GFX']['gdlib_png'] ? 'png' : 'gif';
        if (is_array($configuration['maskImages']) && ‪$GLOBALS['TYPO3_CONF_VARS']['GFX']['processor_enabled'] && $task->‪getSourceFile()->‪getExtension() != $processedFileExtension) {
            $targetFileExtension = 'jpg';
        } elseif ($configuration['fileExtension']) {
            $targetFileExtension = $configuration['fileExtension'];
        }
 
        return $task->‪getTargetFile()->‪generateProcessedFileNameWithoutExtension() . '.' . ltrim(trim($targetFileExtension), '.');
    }
 
    protected function ‪modifyImageMagickStripProfileParameters(string $parameters, array $configuration)
    {
        // Strips profile information of image to save some space:
        if (isset($configuration['stripProfile'])) {
            if (
                $configuration['stripProfile']
                && ‪$GLOBALS['TYPO3_CONF_VARS']['GFX']['processor_stripColorProfileCommand'] !== ''
            ) {
                $parameters = ‪$GLOBALS['TYPO3_CONF_VARS']['GFX']['processor_stripColorProfileCommand'] . $parameters;
            } else {
                $parameters .= '###SkipStripProfile###';
            }
        }
        return $parameters;
    }
 
    protected function ‪isTemporaryFile(string $filePath): bool
    {
        return str_starts_with($filePath, ‪Environment::getPublicPath() . '/typo3temp/');
    }
}