enableSha256 := r.Form.Get("enableSha256") == "true"
	enableMultipart := r.Form.Get("enableMultipart") == "true"

	size, err := strconv.Atoi(sizeStr)
	if err != nil {
		size = 64 * humanize.MiByte
	}

	concurrent, err := strconv.Atoi(concurrentStr)
	if err != nil {
		concurrent = 32
	}

	duration, err := time.ParseDuration(durationStr)
	if err != nil {