Function sendSystemAlert

core/system_alert.go:89–131

sendSystemAlert sends a system error alert to a single superuser. note: unexported for now until there is clarity around the planned log level alerts.

(app App, superuser *Record, subject string, details string)

//
// note: unexported for now until there is clarity around the planned log level alerts.
func sendSystemAlert(app App, superuser *Record, subject string, details string) error {
	if !superuser.IsSuperuser() {
		return errors.New("system alerts can be sent only to superusers")
	}

	if subject == "" || details == "" {
		return errors.New("system alerts subject and details are required")
	}

	data := struct {
		AppName      string
		AlertDetails string
	}{
		AppName:      app.Settings().Meta.AppName,
		AlertDetails: details,
	}

	tpl := template.New("system_alert")

	var parseErr error
	tpl, parseErr = tpl.Parse(systemAlertHTML)
	if parseErr != nil {
		return parseErr
	}

	var buff bytes.Buffer
	executeErr := tpl.Execute(&buff, data)
	if executeErr != nil {
		return executeErr
	}

	message := &mailer.Message{
		From: mail.Address{
			Name:    app.Settings().Meta.SenderName,
			Address: app.Settings().Meta.SenderAddress,
		},
		To:      []mail.Address{{Address: superuser.Email()}},
		Subject: "[" + app.Settings().Meta.AppName + " system alert] " + html.EscapeString(subject),
		HTML:    buff.String(),
	}

	return app.NewMailClient().Send(message)
}