Kunstmaan / KunstmaanBundlesCMS

src/Kunstmaan/MediaBundle/Validator/Constraints/MediaValidator.php

<?php

namespace Kunstmaan\MediaBundle\Validator\Constraints;

use Kunstmaan\MediaBundle\Entity\Media as MediaObject;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Symfony\Component\Validator\Exception\ConstraintDefinitionException;
use Symfony\Component\Validator\Exception\UnexpectedTypeException;

class MediaValidator extends ConstraintValidator
{
    /**
     * @param MediaObject $value
     *
     * @throws ConstraintDefinitionException
     */
    public function validate($value, Constraint $constraint)
    {
        if (!$constraint instanceof Media) {
            throw new UnexpectedTypeException($constraint, __NAMESPACE__ . '\Media');
        }

        if (!$value instanceof MediaObject) {
            return;
        }

        $mimeType = $value->getContentType();

        if ($constraint->mimeTypes) {

The expression $constraint->mimeTypes of type array is implicitly converted to a boolean; are you sure this is intended? If so, consider using ! empty($expr) instead to make it clear that you intend to check for an array without elements.

            $mimeTypes = (array) $constraint->mimeTypes;

            if (false === $this->validateMimeType($value, $mimeTypes)) {
                $this->context->buildViolation($constraint->mimeTypesMessage)
                    ->setParameter('{{ type }}', $this->formatValue($mimeType))
                    ->setParameter('{{ types }}', $this->formatValues($mimeTypes))
                    ->setCode(Media::INVALID_MIME_TYPE_ERROR)
                    ->addViolation();

                return;
            }
        }

        if (!preg_match('^image\/*^', $mimeType) || $mimeType === 'image/svg+xml') {
            return;
        }

        $this->validateDimensions($value, $constraint);
    }

    private function validateMimeType(MediaObject $value, $allowedMimeTypes)
    {
        $mimeType = strtolower($value->getContentType());

        foreach ($allowedMimeTypes as $type) {
            $type = strtolower($type);
            if ($type === $mimeType) {
                return true;
            }

            if ($discrete = strstr($type, '/*', true)) {
                if (strstr($mimeType, '/', true) === $discrete) {
                    return true;
                }
            }
        }

        return false;
    }

    private function validateDimensions(MediaObject $value, Media $constraint)
    {
        $height = $value->getMetadataValue('original_height');
        $width = $value->getMetadataValue('original_width');

        if ($constraint->minHeight) {
            if (!ctype_digit((string) $constraint->minHeight)) {
                throw new ConstraintDefinitionException(sprintf('"%s" is not a valid minimum height', $constraint->minHeight));
            }

            if ($height < $constraint->minHeight) {
                $this->context->buildViolation($constraint->minHeightMessage)
                    ->setParameter('{{ height }}', $height)
                    ->setParameter('{{ min_height }}', $constraint->minHeight)
                    ->setCode(Media::TOO_LOW_ERROR)
                    ->addViolation();

                return;
            }
        }

        if ($constraint->maxHeight) {
            if (!ctype_digit((string) $constraint->maxHeight)) {
                throw new ConstraintDefinitionException(sprintf('"%s" is not a valid maximum height', $constraint->maxHeight));
            }

            if ($height > $constraint->maxHeight) {
                $this->context->buildViolation($constraint->maxHeightMessage)
                    ->setParameter('{{ height }}', $height)
                    ->setParameter('{{ max_height }}', $constraint->maxHeight)
                    ->setCode(Media::TOO_HIGH_ERROR)
                    ->addViolation();

                return;
            }
        }

        if ($constraint->minWidth) {
            if (!ctype_digit((string) $constraint->minWidth)) {
                throw new ConstraintDefinitionException(sprintf('"%s" is not a valid minimum width', $constraint->minWidth));
            }

            if ($width < $constraint->minWidth) {
                $this->context->buildViolation($constraint->minWidthMessage)
                    ->setParameter('{{ width }}', $width)
                    ->setParameter('{{ min_width }}', $constraint->minWidth)
                    ->setCode(Media::TOO_NARROW_ERROR)
                    ->addViolation();

                return;
            }
        }

        if ($constraint->maxWidth) {
            if (!ctype_digit((string) $constraint->maxWidth)) {
                throw new ConstraintDefinitionException(sprintf('"%s" is not a valid maximum width', $constraint->maxWidth));
            }

            if ($width > $constraint->maxWidth) {
                $this->context->buildViolation($constraint->maxWidthMessage)
                    ->setParameter('{{ width }}', $width)
                    ->setParameter('{{ max_width }}', $constraint->maxWidth)
                    ->setCode(Media::TOO_WIDE_ERROR)
                    ->addViolation();

                return;
            }
        }
    }
}