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<?php
namespace Maatwebsite\Excel\Helpers;
use Maatwebsite\Excel\Exceptions\NoTypeDetectedException;
use Symfony\Component\HttpFoundation\File\UploadedFile;
class FileTypeDetector
{
/**
* @param $filePath
* @param string|null $type
* @return string|null
*
* @throws NoTypeDetectedException
*/
public static function detect($filePath, string $type = null)
{
if (null !== $type) {
return $type;
}
if (!$filePath instanceof UploadedFile) {
$pathInfo = pathinfo($filePath);
$extension = $pathInfo['extension'] ?? '';
} else {
$extension = $filePath->getClientOriginalExtension();
}
if (null === $type && trim($extension) === '') {
throw new NoTypeDetectedException();
}
return config('excel.extension_detector.' . strtolower($extension));
}
/**
* @param string $filePath
* @param string|null $type
* @return string
*
* @throws NoTypeDetectedException
*/
public static function detectStrict(string $filePath, string $type = null): string
{
$type = static::detect($filePath, $type);
if (!$type) {
throw new NoTypeDetectedException();
}
return $type;
}
}