func()

in agent/agentserver/server.go [133:163]

• 31 lines of code
• 10 McCabe index (conditional complexity)

func (s *Server) downloadBlobHandler(w http.ResponseWriter, r *http.Request) error {
	namespace, err := httputil.ParseParam(r, "namespace")
	if err != nil {
		return err
	}
	d, err := parseDigest(r)
	if err != nil {
		return err
	}
	f, err := s.cads.Cache().GetFileReader(d.Hex())
	if err != nil {
		if os.IsNotExist(err) || s.cads.InDownloadError(err) {
			if err := s.sched.Download(namespace, d); err != nil {
				if err == scheduler.ErrTorrentNotFound {
					return handler.ErrorStatus(http.StatusNotFound)
				}
				return handler.Errorf("download torrent: %s", err)
			}
			f, err = s.cads.Cache().GetFileReader(d.Hex())
			if err != nil {
				return handler.Errorf("store: %s", err)
			}
		} else {
			return handler.Errorf("store: %s", err)
		}
	}
	if _, err := io.Copy(w, f); err != nil {
		return fmt.Errorf("copy file: %s", err)
	}
	return nil
}