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<?php |
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/* |
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* This file is part of Respect/Validation. |
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* |
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* (c) Alexandre Gomes Gaigalas <[email protected]> |
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* |
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* For the full copyright and license information, please view the "LICENSE.md" |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Respect\Validation\Rules; |
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use Respect\Validation\Exceptions\ComponentException; |
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use SplFileInfo; |
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use function filesize; |
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use function is_numeric; |
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use function is_string; |
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use function preg_match; |
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use function sprintf; |
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/** |
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* Validates whether the input is a file that is of a certain size or not. |
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* |
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* @author Danilo Correa <[email protected]> |
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* @author Henrique Moody <[email protected]> |
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*/ |
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final class Size extends AbstractRule |
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{ |
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/** |
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* @var string|null |
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*/ |
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private $minSize; |
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/** |
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* @var float|null |
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*/ |
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private $minValue; |
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/** |
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* @var string|null |
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*/ |
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private $maxSize; |
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/** |
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* @var float|null |
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*/ |
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private $maxValue; |
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/** |
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* @param string|int|null $minSize |
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* @param string|int|null $maxSize |
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*/ |
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public function __construct($minSize = null, $maxSize = null) |
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{ |
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$this->minSize = $minSize; |
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$this->minValue = $minSize ? $this->toBytes($minSize) : null; |
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$this->maxSize = $maxSize; |
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$this->maxValue = $maxSize ? $this->toBytes($maxSize) : null; |
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} |
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/** |
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* @todo Move it to a trait |
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* |
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* @param mixed $size |
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*/ |
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private function toBytes($size): float |
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{ |
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$value = $size; |
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$units = ['b', 'kb', 'mb', 'gb', 'tb', 'pb', 'eb', 'zb', 'yb']; |
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foreach ($units as $exponent => $unit) { |
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if (!preg_match('/^(\d+(.\d+)?)'.$unit.'$/i', (string) $size, $matches)) { |
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continue; |
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} |
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$value = $matches[1] * 1024 ** $exponent; |
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break; |
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} |
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if (!is_numeric($value)) { |
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throw new ComponentException(sprintf('"%s" is not a recognized file size.', (string) $size)); |
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} |
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return (float) $value; |
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} |
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private function isValidSize(float $size): bool |
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{ |
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if ($this->minValue !== null && $this->maxValue !== null) { |
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return $size >= $this->minValue && $size <= $this->maxValue; |
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} |
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if ($this->minValue !== null) { |
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return $size >= $this->minValue; |
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} |
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return $size <= $this->maxValue; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function validate($input): bool |
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{ |
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if ($input instanceof SplFileInfo) { |
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return $this->isValidSize($input->getSize()); |
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} |
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if (is_string($input)) { |
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return $this->isValidSize((int) filesize($input)); |
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} |
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return false; |
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} |
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} |
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Respect /
Validation
