func validateWebpushConfig()

in messaging/messaging_utils.go [211:235]

• 25 lines of code
• 12 McCabe index (conditional complexity)

func validateWebpushConfig(webpush *WebpushConfig) error {
	if webpush == nil || webpush.Notification == nil {
		return nil
	}
	dir := webpush.Notification.Direction
	if dir != "" && dir != "ltr" && dir != "rtl" && dir != "auto" {
		return fmt.Errorf("direction must be 'ltr', 'rtl' or 'auto'")
	}
	m := webpush.Notification.standardFields()
	for k := range webpush.Notification.CustomData {
		if _, contains := m[k]; contains {
			return fmt.Errorf("multiple specifications for the key %q", k)
		}
	}
	if webpush.FCMOptions != nil {
		link := webpush.FCMOptions.Link
		p, err := url.ParseRequestURI(link)
		if err != nil {
			return fmt.Errorf("invalid link URL: %q", link)
		} else if p.Scheme != "https" {
			return fmt.Errorf("invalid link URL: %q; want scheme: %q", link, "https")
		}
	}
	return nil
}