262 lines
11 KiB
PHP
262 lines
11 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Validator\Constraints;
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use Symfony\Component\Validator\Context\ExecutionContextInterface;
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use Symfony\Component\Validator\Constraint;
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use Symfony\Component\Validator\Exception\ConstraintDefinitionException;
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use Symfony\Component\Validator\Exception\UnexpectedTypeException;
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/**
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* Validates whether a value is a valid image file and is valid
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* against minWidth, maxWidth, minHeight and maxHeight constraints.
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*
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* @author Benjamin Dulau <benjamin.dulau@gmail.com>
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* @author Bernhard Schussek <bschussek@gmail.com>
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*/
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class ImageValidator extends FileValidator
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{
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/**
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* {@inheritdoc}
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*/
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public function validate($value, Constraint $constraint)
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{
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if (!$constraint instanceof Image) {
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throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\Image');
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}
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$violations = count($this->context->getViolations());
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parent::validate($value, $constraint);
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$failed = count($this->context->getViolations()) !== $violations;
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if ($failed || null === $value || '' === $value) {
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return;
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}
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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->minRatio && null === $constraint->maxRatio
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&& $constraint->allowSquare && $constraint->allowLandscape && $constraint->allowPortrait) {
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return;
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}
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$size = @getimagesize($value);
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if (empty($size) || (0 === $size[0]) || (0 === $size[1])) {
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if ($this->context instanceof ExecutionContextInterface) {
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$this->context->buildViolation($constraint->sizeNotDetectedMessage)
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->setCode(Image::SIZE_NOT_DETECTED_ERROR)
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->addViolation();
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} else {
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$this->buildViolation($constraint->sizeNotDetectedMessage)
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->setCode(Image::SIZE_NOT_DETECTED_ERROR)
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->addViolation();
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}
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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 ConstraintDefinitionException(sprintf('"%s" is not a valid minimum width', $constraint->minWidth));
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}
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if ($width < $constraint->minWidth) {
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if ($this->context instanceof ExecutionContextInterface) {
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$this->context->buildViolation($constraint->minWidthMessage)
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->setParameter('{{ width }}', $width)
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->setParameter('{{ min_width }}', $constraint->minWidth)
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->setCode(Image::TOO_NARROW_ERROR)
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->addViolation();
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} else {
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$this->buildViolation($constraint->minWidthMessage)
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->setParameter('{{ width }}', $width)
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->setParameter('{{ min_width }}', $constraint->minWidth)
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->setCode(Image::TOO_NARROW_ERROR)
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->addViolation();
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}
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return;
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}
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}
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if ($constraint->maxWidth) {
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if (!ctype_digit((string) $constraint->maxWidth)) {
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throw new ConstraintDefinitionException(sprintf('"%s" is not a valid maximum width', $constraint->maxWidth));
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}
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if ($width > $constraint->maxWidth) {
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if ($this->context instanceof ExecutionContextInterface) {
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$this->context->buildViolation($constraint->maxWidthMessage)
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->setParameter('{{ width }}', $width)
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->setParameter('{{ max_width }}', $constraint->maxWidth)
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->setCode(Image::TOO_WIDE_ERROR)
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->addViolation();
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} else {
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$this->buildViolation($constraint->maxWidthMessage)
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->setParameter('{{ width }}', $width)
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->setParameter('{{ max_width }}', $constraint->maxWidth)
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->setCode(Image::TOO_WIDE_ERROR)
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->addViolation();
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}
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return;
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}
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}
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if ($constraint->minHeight) {
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if (!ctype_digit((string) $constraint->minHeight)) {
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throw new ConstraintDefinitionException(sprintf('"%s" is not a valid minimum height', $constraint->minHeight));
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}
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if ($height < $constraint->minHeight) {
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if ($this->context instanceof ExecutionContextInterface) {
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$this->context->buildViolation($constraint->minHeightMessage)
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->setParameter('{{ height }}', $height)
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->setParameter('{{ min_height }}', $constraint->minHeight)
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->setCode(Image::TOO_LOW_ERROR)
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->addViolation();
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} else {
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$this->buildViolation($constraint->minHeightMessage)
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->setParameter('{{ height }}', $height)
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->setParameter('{{ min_height }}', $constraint->minHeight)
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->setCode(Image::TOO_LOW_ERROR)
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->addViolation();
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}
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return;
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}
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}
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if ($constraint->maxHeight) {
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if (!ctype_digit((string) $constraint->maxHeight)) {
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throw new ConstraintDefinitionException(sprintf('"%s" is not a valid maximum height', $constraint->maxHeight));
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}
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if ($height > $constraint->maxHeight) {
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if ($this->context instanceof ExecutionContextInterface) {
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$this->context->buildViolation($constraint->maxHeightMessage)
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->setParameter('{{ height }}', $height)
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->setParameter('{{ max_height }}', $constraint->maxHeight)
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->setCode(Image::TOO_HIGH_ERROR)
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->addViolation();
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} else {
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$this->buildViolation($constraint->maxHeightMessage)
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->setParameter('{{ height }}', $height)
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->setParameter('{{ max_height }}', $constraint->maxHeight)
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->setCode(Image::TOO_HIGH_ERROR)
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->addViolation();
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}
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}
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}
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$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 ConstraintDefinitionException(sprintf('"%s" is not a valid minimum ratio', $constraint->minRatio));
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}
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if ($ratio < $constraint->minRatio) {
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if ($this->context instanceof ExecutionContextInterface) {
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$this->context->buildViolation($constraint->minRatioMessage)
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->setParameter('{{ ratio }}', $ratio)
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->setParameter('{{ min_ratio }}', $constraint->minRatio)
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->setCode(Image::RATIO_TOO_SMALL_ERROR)
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->addViolation();
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} else {
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$this->buildViolation($constraint->minRatioMessage)
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->setParameter('{{ ratio }}', $ratio)
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->setParameter('{{ min_ratio }}', $constraint->minRatio)
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->setCode(Image::RATIO_TOO_SMALL_ERROR)
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->addViolation();
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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 ConstraintDefinitionException(sprintf('"%s" is not a valid maximum ratio', $constraint->maxRatio));
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}
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if ($ratio > $constraint->maxRatio) {
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if ($this->context instanceof ExecutionContextInterface) {
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$this->context->buildViolation($constraint->maxRatioMessage)
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->setParameter('{{ ratio }}', $ratio)
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->setParameter('{{ max_ratio }}', $constraint->maxRatio)
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->setCode(Image::RATIO_TOO_BIG_ERROR)
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->addViolation();
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} else {
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$this->buildViolation($constraint->maxRatioMessage)
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->setParameter('{{ ratio }}', $ratio)
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->setParameter('{{ max_ratio }}', $constraint->maxRatio)
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->setCode(Image::RATIO_TOO_BIG_ERROR)
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->addViolation();
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}
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}
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}
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if (!$constraint->allowSquare && $width == $height) {
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if ($this->context instanceof ExecutionContextInterface) {
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$this->context->buildViolation($constraint->allowSquareMessage)
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->setParameter('{{ width }}', $width)
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->setParameter('{{ height }}', $height)
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->setCode(Image::SQUARE_NOT_ALLOWED_ERROR)
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->addViolation();
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} else {
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$this->buildViolation($constraint->allowSquareMessage)
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->setParameter('{{ width }}', $width)
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->setParameter('{{ height }}', $height)
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->setCode(Image::SQUARE_NOT_ALLOWED_ERROR)
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->addViolation();
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}
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}
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if (!$constraint->allowLandscape && $width > $height) {
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if ($this->context instanceof ExecutionContextInterface) {
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$this->context->buildViolation($constraint->allowLandscapeMessage)
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->setParameter('{{ width }}', $width)
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->setParameter('{{ height }}', $height)
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->setCode(Image::LANDSCAPE_NOT_ALLOWED_ERROR)
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->addViolation();
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} else {
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$this->buildViolation($constraint->allowLandscapeMessage)
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->setParameter('{{ width }}', $width)
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->setParameter('{{ height }}', $height)
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->setCode(Image::LANDSCAPE_NOT_ALLOWED_ERROR)
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->addViolation();
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}
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}
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if (!$constraint->allowPortrait && $width < $height) {
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if ($this->context instanceof ExecutionContextInterface) {
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$this->context->buildViolation($constraint->allowPortraitMessage)
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->setParameter('{{ width }}', $width)
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->setParameter('{{ height }}', $height)
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->setCode(Image::PORTRAIT_NOT_ALLOWED_ERROR)
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->addViolation();
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} else {
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$this->buildViolation($constraint->allowPortraitMessage)
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->setParameter('{{ width }}', $width)
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->setParameter('{{ height }}', $height)
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->setCode(Image::PORTRAIT_NOT_ALLOWED_ERROR)
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->addViolation();
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}
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}
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}
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}
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