ResumableUpload::checkRequiredInputParams

protected function checkRequiredInputParams(array $inputParams, array $required)
{
	foreach ($required as $item)
	{
		if(
			!isset($inputParams[$item]) ||
			(
				!$inputParams[$item] &&
				!(is_string($inputParams[$item]) && $inputParams[$item] !== '') &&
				!($inputParams[$item] === 0)
			)
		)
		{
			$this->errorCollection[] = new Error(
				Loc::getMessage('DISK_DOC_HANDLER_ERROR_REQUIRED_PARAMETER', array('#PARAM#' => $item)),
				DocumentHandler::ERROR_REQUIRED_PARAMETER
			);

			return false;
		}
	}

	return true;
}