public static void logout() {
    if (LogoutManager.isRunning) {
      return;
    }

    LogoutManager.isRunning = true;

    // If there's no user to worry about, we're done now.

    String userName = KoLCharacter.getUserName();

    if (userName == null || userName.equals("")) {
      return;
    }

    if (!KoLmafia.isSessionEnding()) {
      LogoutManager.prepare();
    }

    KoLmafia.updateDisplay("Preparing for logout...");

    // Shut down chat-related activity

    BuffBotHome.setBuffBotActive(false);
    ChatManager.dispose();

    // Run on-logout scripts

    String scriptSetting = Preferences.getString("logoutScript");
    if (!scriptSetting.equals("")) {
      KoLmafia.updateDisplay("Executing logout script...");
      KoLmafiaCLI.DEFAULT_SHELL.executeLine(scriptSetting);
    }

    if (Preferences.getBoolean("sharePriceData")) {
      KoLmafia.updateDisplay("Sharing mall price data with other users...");
      KoLmafiaCLI.DEFAULT_SHELL.executeLine(
          "spade prices http://kolmafia.us/scripts/updateprices.php");
    }

    // Clear out user data

    RequestLogger.closeSessionLog();
    RequestLogger.closeMirror();

    GenericRequest.reset();
    KoLCharacter.reset("");

    // Execute the logout request

    RequestThread.postRequest(new LogoutRequest());
    KoLmafia.updateDisplay("Logout completed.");

    RequestLogger.closeDebugLog();

    LogoutManager.isRunning = false;
  }