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<?php |
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/** |
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* Spiral Framework. |
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* |
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* @license MIT |
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* @author Anton Titov (Wolfy-J) |
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*/ |
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namespace Spiral\Validation\Checkers; |
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use Interop\Container\ContainerInterface; |
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use Psr\Http\Message\UploadedFileInterface; |
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use Spiral\Core\Container\SingletonInterface; |
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use Spiral\Files\FilesInterface; |
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use Spiral\Files\Streams\StreamableInterface; |
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use Spiral\Validation\Checkers\Traits\FileTrait; |
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use Spiral\Validation\Prototypes\AbstractChecker; |
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/** |
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* Image based validations. |
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*/ |
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class ImageChecker extends AbstractChecker implements SingletonInterface |
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{ |
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use FileTrait; |
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/** |
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* Getimagesize constants. |
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*/ |
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const WIDTH = 0; |
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const HEIGHT = 1; |
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const IMAGE_TYPE = 2; |
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/** |
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* {@inheritdoc} |
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*/ |
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const MESSAGES = [ |
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'type' => '[[Image does not supported.]]', |
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'valid' => '[[Image does not supported (allowed JPEG, PNG or GIF).]]', |
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'smaller' => '[[Image size should not exceed {0}x{1}px.]]', |
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'bigger' => '[[The image dimensions should be at least {0}x{1}px.]]', |
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]; |
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/** |
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* Known image types. |
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* |
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* @var array |
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*/ |
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const IMAGE_TYPES = [ |
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'null', |
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'gif', |
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'jpeg', |
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'png', |
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'swf', |
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'psd', |
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'bmp', |
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'tiff', |
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'tiff', |
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'jpc', |
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'jp2', |
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'jpx', |
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'jb2', |
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'swc', |
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'iff', |
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'wbmp', |
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'xbm', |
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]; |
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/** |
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* @param FilesInterface $files |
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* @param ContainerInterface $container |
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*/ |
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public function __construct(FilesInterface $files, ContainerInterface $container = null) |
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{ |
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$this->files = $files; |
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parent::__construct($container); |
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} |
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/** |
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* Check if image in a list of allowed image types. |
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* |
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* @param string|UploadedFileInterface|StreamableInterface $file |
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* @param array|string $types |
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* |
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* @return bool |
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*/ |
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public function type($file, $types): bool |
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{ |
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if (empty($image = $this->imageData($file))) { |
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return false; |
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} |
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if (!is_array($types)) { |
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$types = array_slice(func_get_args(), 1); |
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} |
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return in_array( |
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self::IMAGE_TYPES[$image[self::IMAGE_TYPE]], |
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$types |
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); |
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} |
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/** |
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* Shortcut to check if image has valid type (JPEG, PNG and GIF are allowed). |
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* |
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* @param string|UploadedFileInterface|StreamableInterface $file |
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* |
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* @return bool |
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*/ |
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public function valid($file): bool |
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{ |
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return $this->type($file, ['jpeg', 'png', 'gif']); |
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} |
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/** |
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* Check if image smaller that specified rectangle (height check if optional). |
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* |
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* @param string|UploadedFileInterface|StreamableInterface $file |
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* @param int $width |
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* @param int $height Optional. |
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* |
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* @return bool |
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*/ |
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public function smaller($file, int $width, int $height): bool |
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{ |
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if (empty($image = $this->imageData($file))) { |
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return false; |
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} |
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return $image[self::WIDTH] <= $width |
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&& $image[self::HEIGHT] <= $height; |
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} |
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/** |
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* Check if image is bigger that specified rectangle (height check is optional). |
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* |
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* @param string|UploadedFileInterface|StreamableInterface $file |
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* @param int $width |
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* @param int $height Optional. |
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* |
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* @return bool |
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*/ |
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public function bigger($file, int $width, int $height = null): bool |
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{ |
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if (empty($image = $this->imageData($file))) { |
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return false; |
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} |
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return $image[self::WIDTH] >= $width |
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&& $image[self::HEIGHT] >= $height; |
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} |
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/** |
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* Internal method, return image details fetched by getimagesize() or false. |
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* |
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* @see getimagesize() |
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* |
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* @param string|mixed $file |
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* |
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* @return array|bool |
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*/ |
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protected function imageData($file) |
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{ |
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try { |
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return getimagesize($this->resolveFilename($file)); |
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} catch (\Exception $e) { |
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//We can simply invalidate image if system can't read it |
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} |
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return false; |
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} |
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} |
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spiral /
framework
