FileAttributes::isAllowedUseClouds

static function isAllowedUseClouds($contentType)
{
	if (!Configuration::canCreateFileByCloud())
	{
		return false;
	}

	$documentHandler = self::getDefaultHandlerForView();
	if ($documentHandler instanceof GoogleViewerHandler && !Configuration::isEnabledAutoExternalLink())
	{
		return false;
	}

	return in_array($contentType, self::getInputContentTypes(), true);
}