private BackgroundDownloader ToDownloader(MusicItem track)
{
var downloader = new BackgroundDownloader();
var cloud = track.CloudServer;
var user = track.Username;
var pass = track.Password;
string authHeader = cloud == null?HttpUtil.BasicAuthHeader(user, pass) : HttpUtil.Basic + " " + HttpUtil.Base64ColonSeparated(cloud, user, pass);
downloader.SetRequestHeader(HttpUtil.Authorization, authHeader);
return(downloader);
}