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<?php
namespace JsonApi\Routes\StockImages;
use JsonApi\Errors\BadRequestException;
use Psr\Http\Message\ServerRequestInterface as Request;
use Nyholm\Psr7\UploadedFile;
trait UploadHelpers
{
protected static function getUploadedFile(Request $request): UploadedFile
{
$files = iterator_to_array(self::getUploadedFiles($request));
if (0 === count($files)) {
throw new BadRequestException('File upload required.');
}
if (count($files) > 1) {
throw new BadRequestException('Multiple file upload not possible.');
}
$uploadedFile = reset($files);
if (UPLOAD_ERR_OK !== $uploadedFile->getError()) {
throw new BadRequestException('Upload error.');
}
return $uploadedFile;
}
/**
* @return iterable<UploadedFile> a list of uploaded files
*/
protected static function getUploadedFiles(Request $request): iterable
{
foreach ($request->getUploadedFiles() as $item) {
if (!is_array($item)) {
yield $item;
continue;
}
foreach ($item as $file) {
yield $file;
}
}
}
protected static function getErrorString(int $errNo): string
{
$errors = [
UPLOAD_ERR_OK => 'There is no error, the file uploaded with success',
UPLOAD_ERR_INI_SIZE => 'The uploaded file exceeds the upload_max_filesize directive in php.ini',
UPLOAD_ERR_FORM_SIZE => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form',
UPLOAD_ERR_PARTIAL => 'The uploaded file was only partially uploaded',
UPLOAD_ERR_NO_FILE => 'No file was uploaded',
UPLOAD_ERR_NO_TMP_DIR => 'Missing a temporary folder',
UPLOAD_ERR_CANT_WRITE => 'Failed to write file to disk.',
UPLOAD_ERR_EXTENSION => 'A PHP extension stopped the file upload.',
];
return $errors[$errNo] ?? '';
}
}
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