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<?php |
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namespace Spatie\Image; |
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use FilesystemIterator; |
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use League\Glide\Server; |
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use League\Glide\ServerFactory; |
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use Spatie\Image\Exceptions\CouldNotConvert; |
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/** @private */ |
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final class GlideConversion |
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{ |
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/** @var string */ |
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private $inputImage; |
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/** @var string */ |
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private $imageDriver = 'gd'; |
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/** @var string */ |
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private $conversionResult = null; |
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public static function create(string $inputImage): self |
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{ |
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return new self($inputImage); |
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} |
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public function __construct(string $inputImage) |
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{ |
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$this->inputImage = $inputImage; |
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} |
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public function useImageDriver(string $imageDriver): self |
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{ |
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$this->imageDriver = $imageDriver; |
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return $this; |
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} |
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public function performManipulations(Manipulations $manipulations) |
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{ |
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foreach ($manipulations->getManipulationSequence() as $manipulationGroup) { |
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$inputFile = $this->conversionResult ?? $this->inputImage; |
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$watermarkPath = $this->extractWatermarkPath($manipulationGroup); |
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$glideServer = $this->createGlideServer($inputFile, $watermarkPath); |
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$this->conversionResult = sys_get_temp_dir().DIRECTORY_SEPARATOR.$glideServer->makeImage( |
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pathinfo($inputFile, PATHINFO_BASENAME), |
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$this->prepareManipulations($manipulationGroup) |
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); |
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} |
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return $this; |
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} |
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/** |
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* Removes the watermark path from the manipulationGroup and returns it. This way it can be injected into the Glide |
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* server as the `watermarks` path. |
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* |
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* @param $manipulationGroup |
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* |
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* @return null|string |
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*/ |
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private function extractWatermarkPath(&$manipulationGroup) |
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{ |
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if (array_key_exists('watermark', $manipulationGroup)) { |
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$watermarkPath = dirname($manipulationGroup['watermark']); |
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$manipulationGroup['watermark'] = basename($manipulationGroup['watermark']); |
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return $watermarkPath; |
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} |
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} |
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private function createGlideServer($inputFile, string $watermarkPath = null): Server |
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{ |
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$config = [ |
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'source' => dirname($inputFile), |
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'cache' => sys_get_temp_dir(), |
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'driver' => $this->imageDriver, |
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]; |
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if ($watermarkPath) { |
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$config['watermarks'] = $watermarkPath; |
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} |
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return ServerFactory::create($config); |
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} |
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public function save(string $outputFile) |
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{ |
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if ($this->conversionResult == '') { |
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copy($this->inputImage, $outputFile); |
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return; |
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} |
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$conversionResultDirectory = pathinfo($this->conversionResult, PATHINFO_DIRNAME); |
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rename($this->conversionResult, $outputFile); |
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if ($this->directoryIsEmpty($conversionResultDirectory)) { |
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rmdir($conversionResultDirectory); |
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} |
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} |
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private function prepareManipulations(array $manipulationGroup): array |
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{ |
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$glideManipulations = []; |
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foreach ($manipulationGroup as $name => $argument) { |
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$glideManipulations[$this->convertToGlideParameter($name)] = $argument; |
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} |
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return $glideManipulations; |
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} |
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private function convertToGlideParameter(string $manipulationName): string |
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{ |
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$conversions = [ |
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'width' => 'w', |
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'height' => 'h', |
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'blur' => 'blur', |
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'pixelate' => 'pixel', |
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'crop' => 'fit', |
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'manualCrop' => 'crop', |
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'orientation' => 'or', |
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'fit' => 'fit', |
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'devicePixelRatio' => 'dpr', |
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'brightness' => 'bri', |
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'contrast' => 'con', |
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'gamma' => 'gam', |
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'sharpen' => 'sharp', |
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'filter' => 'filt', |
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'background' => 'bg', |
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'border' => 'border', |
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'quality' => 'q', |
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'format' => 'fm', |
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'watermark' => 'mark', |
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'watermarkWidth' => 'markw', |
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'watermarkHeight' => 'markh', |
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'watermarkFit' => 'markfit', |
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'watermarkPaddingX' => 'markx', |
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'watermarkPaddingY' => 'marky', |
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'watermarkPosition' => 'markpos', |
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'watermarkOpacity' => 'markalpha', |
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]; |
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if (! isset($conversions[$manipulationName])) { |
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throw CouldNotConvert::unknownManipulation($manipulationName); |
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} |
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return $conversions[$manipulationName]; |
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} |
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private function directoryIsEmpty(string $directory): bool |
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{ |
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$iterator = new FilesystemIterator($directory); |
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return ! $iterator->valid(); |
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} |
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} |
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spatie /
image
In PHP, under loose comparison (like
==, or!=, orswitchconditions), values of different types might be equal.For
stringvalues, the empty string''is a special case, in particular the following results might be unexpected: