func getHost(r *http.Request) string {
	if r.URL.IsAbs() {
		return r.URL.Host
	}
	return r.Host
}

func notImplementedHandler(w http.ResponseWriter, r *http.Request) {
	writeErrorResponse(r.Context(), w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)
}

type rejectedAPI struct {
	api     string
	methods []string
	queries []string
	path    string
}

var rejectedObjAPIs = []rejectedAPI{

		return
	}

	file = filepath.ToSlash(file)
	// Reject attempts to traverse parent or absolute paths.
	if hasBadPathComponent(volume) || hasBadPathComponent(file) {
		writeErrorResponse(r.Context(), w, errorCodes.ToAPIErr(ErrInvalidResourceName), r.URL)
		return
	}

	var publicKey *rsa.PublicKey

	publicKeyB64 := r.Form.Get("public-key")
	if publicKeyB64 != "" {