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<?php
namespace Rakit\Validation\Rules\Traits;
use InvalidArgumentException;
trait SizeTrait
{
/**
* Get size (int) value from given $value
*
* @param int|string $value
* @return float|false
*/
protected function getValueSize($value)
{
if ($this->getAttribute()
&& ($this->getAttribute()->hasRule('numeric') || $this->getAttribute()->hasRule('integer'))
&& is_numeric($value)
) {
$value = (float) $value;
}
if (is_int($value) || is_float($value)) {
return (float) $value;
} elseif (is_string($value)) {
return (float) mb_strlen($value, 'UTF-8');
} elseif ($this->isUploadedFileValue($value)) {
return (float) $value['size'];
} elseif (is_array($value)) {
return (float) count($value);
} else {
return false;
}
}
/**
* Given $size and get the bytes
*
* @param string|int $size
* @return float
* @throws InvalidArgumentException
*/
protected function getBytesSize($size)
{
if (is_numeric($size)) {
return (float) $size;
}
if (!is_string($size)) {
throw new InvalidArgumentException("Size must be string or numeric Bytes", 1);
}
if (!preg_match("/^(?<number>((\d+)?\.)?\d+)(?<format>(B|K|M|G|T|P)B?)?$/i", $size, $match)) {
throw new InvalidArgumentException("Size is not valid format", 1);
}
$number = (float) $match['number'];
$format = isset($match['format']) ? $match['format'] : '';
switch (strtoupper($format)) {
case "KB":
case "K":
return $number * 1024;
case "MB":
case "M":
return $number * pow(1024, 2);
case "GB":
case "G":
return $number * pow(1024, 3);
case "TB":
case "T":
return $number * pow(1024, 4);
case "PB":
case "P":
return $number * pow(1024, 5);
default:
return $number;
}
}
/**
* Check whether value is from $_FILES
*
* @param mixed $value
* @return bool
*/
public function isUploadedFileValue($value): bool
{
if (!is_array($value)) {
return false;
}
$keys = ['name', 'type', 'tmp_name', 'size', 'error'];
foreach ($keys as $key) {
if (!array_key_exists($key, $value)) {
return false;
}
}
return true;
}
}