Function isJupyterServerURLValid

internal/codespaces/rpc/invoker.go:321–335

Ensures that the Jupyter server URL is valid and points to a loopback http(s) URL

(serverURL string)

// Ensures that the Jupyter server URL is valid and points to a loopback http(s) URL
func isJupyterServerURLValid(serverURL string) bool {
	u, err := url.Parse(serverURL)
	if err != nil {
		return false
	}
	if u.Scheme != "http" && u.Scheme != "https" {
		return false
	}
	host := u.Hostname()
	if strings.ToLower(host) == "localhost" {
		return true
	}
	ip := net.ParseIP(host)
	return ip != nil && ip.IsLoopback()
}