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<?php |
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declare(strict_types=1); |
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namespace LauLamanApps\IzettleApi\Client\Image; |
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use Exception; |
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use LauLamanApps\IzettleApi\Client\Image\Exceptions\FileIsNotAnImageException; |
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use LauLamanApps\IzettleApi\Client\Image\Exceptions\ImageIsToSmallException; |
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use LauLamanApps\IzettleApi\Client\Image\Exceptions\ImageTypeNotAllowedException; |
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use LauLamanApps\IzettleApi\Client\Image\Exceptions\MaximumImageFileSizeExcededException; |
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final class ImageFileUpload implements ImageUploadRequestInterface |
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{ |
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const ALLOWED_FILE_TYPES = [ |
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IMAGETYPE_GIF => 'GIF', |
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IMAGETYPE_JPEG => 'JPEG', |
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IMAGETYPE_PNG => 'PNG', |
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IMAGETYPE_BMP => 'BMP', |
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IMAGETYPE_TIFF_II => 'TIFF', |
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IMAGETYPE_TIFF_MM => 'TIFF' |
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]; |
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const MAX_FILE_SIZE_MB = 5; |
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const MINIMAL_HEIGHT = 50; |
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const MINIMAL_WIDTH = 50; |
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private $imageFormat; |
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private $imageData; |
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public function __construct(string $filename) |
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{ |
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$this->validateFile($filename); |
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$this->imageFormat = self::ALLOWED_FILE_TYPES[exif_imagetype($filename)]; |
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$this->imageData = file_get_contents($filename); |
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} |
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public function getUploadRequest(): array |
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{ |
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return [ |
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'imageFormat' => $this->imageFormat, |
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'imageData' => $this->imageData, |
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]; |
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} |
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private function validateFile(string $file) |
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{ |
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self::validateFileSize($file); |
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self::validatedImageType($file); |
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self::validateImageSize($file); |
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} |
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private static function validateFileSize($file) |
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{ |
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$maxFileSizeBytes = (self::MAX_FILE_SIZE_MB * 1024 * 1024); |
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if (filesize($file) > $maxFileSizeBytes) { |
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throw new MaximumImageFileSizeExcededException(sprintf('Max file size is \'%d Mb\'', self::MAX_FILE_SIZE_MB)); |
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} |
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} |
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private static function validatedImageType(string $file) |
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{ |
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$type = false; |
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try { |
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$type = exif_imagetype($file); |
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} catch (Exception $e) { |
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//-- $type is already false |
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} |
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if ($type === false) { |
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throw new FileIsNotAnImageException(); |
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} |
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if (!array_key_exists($type, self::ALLOWED_FILE_TYPES)) { |
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throw new ImageTypeNotAllowedException( |
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sprintf('Allowed: %s', implode(', ', self::ALLOWED_FILE_TYPES)) |
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); |
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} |
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} |
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private static function validateImageSize(string $file) |
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{ |
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list($width, $height) = getimagesize($file); |
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if ($width < self::MINIMAL_WIDTH or $height < self::MINIMAL_HEIGHT) { |
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throw new ImageIsToSmallException( |
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sprintf( |
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'Minimal image dimensions not met. Required: \'%dx%d\' Provided: \'%dx%d\'', |
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self::MINIMAL_HEIGHT, |
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self::MINIMAL_WIDTH, |
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$height, |
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$width |
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) |
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); |
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} |
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} |
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} |
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LauLamanApps /
iZettleApi
