func formattedFingerprintsFor(s access.Session) string {
	result := ""

	if s != nil {
		for _, sk := range s.PrivateKeys() {
			pk := sk.PublicKey()
			if pk != nil {
				result = fmt.Sprintf("%s%s%s\n", result, "    ", config.FormatFingerprint(pk.Fingerprint()))
			}
		}
	}

	return result
}

func toggleConnectAndDisconnectMenuItems(s access.Session, connect, disconnect *gtk.MenuItem) {
	doInUIThread(func() {
		connect.SetSensitive(s.IsDisconnected())
		disconnect.SetSensitive(!s.IsDisconnected())
	})
}

func (m *accountManager) findAccountForSession(s access.Session) *account {
	acc, _ := m.getAccountByID(s.GetConfig().ID())
	return acc
}

func (u *gtkUI) accountDialog(s access.Session, account *config.Account, saveFunction func()) {
	assertInUIThread()

	data := getBuilderAndAccountDialogDetails()

	data.otherSettings.SetActive(u.config.AdvancedOptions)
	data.acc.SetText(account.Account)

	if s != nil {
		data.displayName.SetProperty("placeholder-text", s.DisplayName())
		nick := s.GetConfig().Nickname
		if nick != "" {
			data.displayName.SetText(nick)
		}
	}

	if account.Password != "" {
		data.pass.SetProperty("placeholder-text", "(saved in configuration file)")
	}

	data.server.SetText(account.Server)
	if account.Port == 0 {
		account.Port = 5222
	}
	data.port.SetText(strconv.Itoa(account.Port))

	for _, px := range account.Proxies {
		iter := data.proxies.Append()
		data.proxies.SetValue(iter, 0, net.ParseProxy(px).ForPresentation())
		data.proxies.SetValue(iter, 1, px)
	}

	for _, px := range account.Certificates {
		iter := data.pins.Append()
		data.pins.SetValue(iter, 0, px.Subject)
		data.pins.SetValue(iter, 1, px.Issuer)
		data.pins.SetValue(iter, 2, hex.EncodeToString(px.Fingerprint))
	}

	data.pinningPolicy.SetActive(findPinningPolicyFor(account.PinningPolicy))

	if s != nil && s.PrivateKeys() != nil && len(s.PrivateKeys()) > 0 {
		data.fingerprintsMessage.SetSelectable(true)
		m := i18n.Local("Your fingerprints for %s:\n%s")
		message := fmt.Sprintf(m, account.Account, formattedFingerprintsFor(s))
		data.fingerprintsMessage.SetText(message)
	}

	p2, _ := data.notebook.GetNthPage(1)
	p3, _ := data.notebook.GetNthPage(2)
	p4, _ := data.notebook.GetNthPage(3)

	failures := 0

	editProxy := func(iter gtki.TreeIter, onCancel func()) {
		val, _ := data.proxies.GetValue(iter, 1)
		realProxyData, _ := val.GetString()
		u.editProxy(realProxyData, data.dialog,
			func(p net.Proxy) {
				data.proxies.SetValue(iter, 0, p.ForPresentation())
				data.proxies.SetValue(iter, 1, p.ForProcessing())
			}, onCancel)
	}

	data.builder.ConnectSignals(map[string]interface{}{
		"on_toggle_other_settings": func() {
			otherSettings := data.otherSettings.GetActive()
			u.setShowAdvancedSettings(otherSettings)
			data.notebook.SetShowTabs(otherSettings)
			if otherSettings {
				p2.Show()
				p3.Show()
				p4.Show()
			} else {
				p2.Hide()
				p3.Hide()
				p4.Hide()
			}
		},
		"on_save_signal": func() {
			accTxt, _ := data.acc.GetText()
			passTxt, _ := data.pass.GetText()
			dispTxt, _ := data.displayName.GetText()
			servTxt, _ := data.server.GetText()
			portTxt, _ := data.port.GetText()

			isJid, err := verifyXMPPAddress(accTxt)
			if !isJid && failures > 0 {
				failures++
				return
			}

			if !isJid {
				notification := buildBadUsernameNotification(err)
				data.notificationArea.Add(notification)
				notification.ShowAll()
				failures++
				log.Printf(err)
				return
			}
//.........这里部分代码省略.........