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<?php |
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namespace ByTIC\MediaLibrary\Validation\Validators; |
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use ByTIC\MediaLibrary\Validation\Constraints\ImageConstraint; |
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use Nip\Logger\Exception; |
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/** |
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* Class ImageValidator. |
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*/ |
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class ImageValidator extends AbstractValidator |
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{ |
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/** |
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* @return bool |
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*/ |
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protected function contraintNeedsValidation(): bool |
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{ |
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$constraint = $this->getConstraint(); |
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if (null === $constraint->minWidth && null === $constraint->maxWidth |
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&& null === $constraint->minHeight && null === $constraint->maxHeight |
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&& null === $constraint->minPixels && null === $constraint->maxPixels |
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&& null === $constraint->minRatio && null === $constraint->maxRatio |
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&& $constraint->allowSquare && $constraint->allowLandscape && $constraint->allowPortrait |
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&& !$constraint->detectCorrupted |
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) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* @throws Exception |
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*/ |
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protected function doValidation() |
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{ |
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$size = @getimagesize($this->getValue()); |
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$constraint = $this->getConstraint(); |
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if (empty($size) || ($size[0] === 0) || ($size[1] === 0)) { |
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$this->addViolation($constraint, ImageConstraint::SIZE_NOT_DETECTED_ERROR, []); |
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return; |
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} |
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$width = $size[0]; |
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$height = $size[1]; |
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if ($constraint->minWidth) { |
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if (!ctype_digit((string) $constraint->minWidth)) { |
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throw new Exception(sprintf( |
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'"%s" is not a valid minimum width', |
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$constraint->minWidth |
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)); |
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} |
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if ($width < $constraint->minWidth) { |
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$this->addViolation( |
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$constraint, |
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ImageConstraint::TOO_NARROW_ERROR, |
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['width' => $width, 'min_width' => $constraint->minWidth] |
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); |
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return; |
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} |
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} |
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if ($constraint->maxWidth) { |
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if (!ctype_digit((string) $constraint->maxWidth)) { |
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throw new Exception(sprintf( |
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'"%s" is not a valid maximum width', |
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$constraint->maxWidth |
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)); |
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} |
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if ($width > $constraint->maxWidth) { |
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$this->addViolation( |
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$constraint, |
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ImageConstraint::TOO_WIDE_ERROR, |
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['width' => $width, 'max_width' => $constraint->maxWidth] |
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); |
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return; |
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} |
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} |
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if ($constraint->minHeight) { |
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if (!ctype_digit((string) $constraint->minHeight)) { |
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throw new Exception(sprintf( |
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'"%s" is not a valid minimum height', |
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$constraint->minHeight |
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)); |
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} |
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if ($height < $constraint->minHeight) { |
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$this->addViolation( |
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$constraint, |
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ImageConstraint::TOO_LOW_ERROR, |
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['height' => $height, 'min_height' => $constraint->minHeight] |
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); |
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return; |
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} |
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} |
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if ($constraint->maxHeight) { |
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if (!ctype_digit((string) $constraint->maxHeight)) { |
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throw new Exception(sprintf( |
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'"%s" is not a valid maximum height', |
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$constraint->maxHeight |
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)); |
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} |
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if ($height > $constraint->maxHeight) { |
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$this->addViolation( |
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$constraint, |
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ImageConstraint::TOO_HIGH_ERROR, |
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['height' => $height, 'max_height' => $constraint->maxHeight] |
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); |
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} |
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} |
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$ratio = round($width / $height, 2); |
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if (null !== $constraint->minRatio) { |
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if (!is_numeric((string) $constraint->minRatio)) { |
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throw new Exception(sprintf( |
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'"%s" is not a valid minimum ratio', |
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$constraint->minRatio |
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)); |
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} |
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if ($ratio < $constraint->minRatio) { |
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$this->addViolation( |
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$constraint, |
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ImageConstraint::RATIO_TOO_SMALL_ERROR, |
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['ratio' => $ratio, 'minRatio' => $constraint->minRatio] |
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); |
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} |
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} |
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if (null !== $constraint->maxRatio) { |
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if (!is_numeric((string) $constraint->maxRatio)) { |
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throw new Exception(sprintf( |
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'"%s" is not a valid maximum ratio', |
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$constraint->maxRatio |
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)); |
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} |
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if ($ratio > $constraint->maxRatio) { |
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$this->addViolation( |
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$constraint, |
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ImageConstraint::RATIO_TOO_BIG_ERROR, |
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['ratio' => $ratio, 'max_ratio' => $constraint->maxRatio] |
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); |
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} |
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} |
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$this->validateCorruptedFile(); |
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} |
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/** |
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* @throws Exception |
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* |
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* @return bool |
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*/ |
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protected function validateCorruptedFile() |
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{ |
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$constraint = $this->getConstraint(); |
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$value = $this->getValue(); |
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if ($constraint->detectCorrupted) { |
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if (!function_exists('imagecreatefromstring')) { |
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throw new Exception('Corrupted images detection requires installed and enabled GD extension'); |
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} |
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$resource = @imagecreatefromstring(file_get_contents($value)); |
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if (false === $resource) { |
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$this->addViolation( |
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$constraint, |
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ImageConstraint::CORRUPTED_IMAGE_ERROR, |
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[] |
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); |
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} |
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imagedestroy($resource); |
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} |
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return true; |
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} |
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/** |
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* @param $width |
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* @param $height |
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*/ |
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protected function validateOrientation($width, $height) |
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{ |
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$constraint = $this->getConstraint(); |
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if (!$constraint->allowSquare && $width == $height) { |
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$this->addViolation( |
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$constraint, |
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ImageConstraint::SQUARE_NOT_ALLOWED_ERROR, |
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['width' => $width, 'height' => $height] |
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); |
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} |
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if (!$constraint->allowLandscape && $width > $height) { |
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$this->addViolation( |
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$constraint, |
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ImageConstraint::LANDSCAPE_NOT_ALLOWED_ERROR, |
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['width' => $width, 'height' => $height] |
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); |
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} |
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if (!$constraint->allowPortrait && $width < $height) { |
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$this->addViolation( |
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$constraint, |
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ImageConstraint::PORTRAIT_NOT_ALLOWED_ERROR, |
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['width' => $width, 'height' => $height] |
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); |
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} |
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} |
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} |
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bytic /
MediaLibrary
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