static boolean checkAuthentication(
      final PwmRequest pwmRequest, final ConfigManagerBean configManagerBean)
      throws IOException, PwmUnrecoverableException, ServletException {
    final PwmApplication pwmApplication = pwmRequest.getPwmApplication();
    final PwmSession pwmSession = pwmRequest.getPwmSession();
    final ConfigurationReader runningConfigReader =
        ContextManager.getContextManager(pwmRequest.getHttpServletRequest().getSession())
            .getConfigReader();
    final StoredConfigurationImpl storedConfig = runningConfigReader.getStoredConfiguration();

    boolean authRequired = false;
    if (storedConfig.hasPassword()) {
      authRequired = true;
    }

    if (PwmApplication.MODE.RUNNING == pwmRequest.getPwmApplication().getApplicationMode()) {
      if (!pwmSession.getSessionStateBean().isAuthenticated()) {
        throw new PwmUnrecoverableException(PwmError.ERROR_AUTHENTICATION_REQUIRED);
      }

      if (!pwmRequest
          .getPwmSession()
          .getSessionManager()
          .checkPermission(pwmRequest.getPwmApplication(), Permission.PWMADMIN)) {
        final ErrorInformation errorInformation = new ErrorInformation(PwmError.ERROR_UNAUTHORIZED);
        pwmRequest.respondWithError(errorInformation);
        return true;
      }

      if (pwmSession.getLoginInfoBean().getAuthenticationType()
          != AuthenticationType.AUTHENTICATED) {
        throw new PwmUnrecoverableException(
            new ErrorInformation(
                PwmError.ERROR_AUTHENTICATION_REQUIRED,
                "Username/Password authentication is required to edit configuration.  This session has not been authenticated using a user password (SSO or other method used)."));
      }
    }

    if (PwmApplication.MODE.CONFIGURATION != pwmRequest.getPwmApplication().getApplicationMode()) {
      authRequired = true;
    }

    if (!authRequired) {
      return false;
    }

    if (!storedConfig.hasPassword()) {
      final String errorMsg = "config file does not have a configuration password";
      final ErrorInformation errorInformation =
          new ErrorInformation(PwmError.CONFIG_FORMAT_ERROR, errorMsg, new String[] {errorMsg});
      pwmRequest.respondWithError(errorInformation, true);
      return true;
    }

    if (configManagerBean.isPasswordVerified()) {
      return false;
    }

    String persistentLoginValue = null;
    boolean persistentLoginAccepted = false;
    boolean persistentLoginEnabled = false;
    if (pwmRequest.getConfig().isDefaultValue(PwmSetting.PWM_SECURITY_KEY)) {
      LOGGER.debug(pwmRequest, "security not available, persistent login not possible.");
    } else {
      persistentLoginEnabled = true;
      final PwmSecurityKey securityKey = pwmRequest.getConfig().getSecurityKey();

      if (PwmApplication.MODE.RUNNING == pwmRequest.getPwmApplication().getApplicationMode()) {
        persistentLoginValue =
            SecureEngine.hash(
                storedConfig.readConfigProperty(ConfigurationProperty.PASSWORD_HASH)
                    + pwmSession.getUserInfoBean().getUserIdentity().toDelimitedKey(),
                PwmHashAlgorithm.SHA512);

      } else {
        persistentLoginValue =
            SecureEngine.hash(
                storedConfig.readConfigProperty(ConfigurationProperty.PASSWORD_HASH),
                PwmHashAlgorithm.SHA512);
      }

      {
        final String cookieStr =
            ServletHelper.readCookie(
                pwmRequest.getHttpServletRequest(), PwmConstants.COOKIE_PERSISTENT_CONFIG_LOGIN);
        if (securityKey != null && cookieStr != null && !cookieStr.isEmpty()) {
          try {
            final String jsonStr = pwmApplication.getSecureService().decryptStringValue(cookieStr);
            final PersistentLoginInfo persistentLoginInfo =
                JsonUtil.deserialize(jsonStr, PersistentLoginInfo.class);
            if (persistentLoginInfo != null && persistentLoginValue != null) {
              if (persistentLoginInfo.getExpireDate().after(new Date())) {
                if (persistentLoginValue.equals(persistentLoginInfo.getPassword())) {
                  persistentLoginAccepted = true;
                  LOGGER.debug(
                      pwmRequest,
                      "accepting persistent config login from cookie (expires "
                          + PwmConstants.DEFAULT_DATETIME_FORMAT.format(
                              persistentLoginInfo.getExpireDate())
                          + ")");
                }
              }
            }
          } catch (Exception e) {
            LOGGER.error(
                pwmRequest, "error examining persistent config login cookie: " + e.getMessage());
          }
          if (!persistentLoginAccepted) {
            Cookie removalCookie = new Cookie(PwmConstants.COOKIE_PERSISTENT_CONFIG_LOGIN, null);
            removalCookie.setMaxAge(0);
            pwmRequest.getPwmResponse().addCookie(removalCookie);
            LOGGER.debug(pwmRequest, "removing non-working persistent config login cookie");
          }
        }
      }
    }

    final String password = pwmRequest.readParameterAsString("password");
    boolean passwordAccepted = false;
    if (!persistentLoginAccepted) {
      if (password != null && password.length() > 0) {
        if (storedConfig.verifyPassword(password)) {
          passwordAccepted = true;
          LOGGER.trace(pwmRequest, "valid configuration password accepted");
          updateLoginHistory(pwmRequest, pwmRequest.getUserInfoIfLoggedIn(), true);
        } else {
          LOGGER.trace(pwmRequest, "configuration password is not correct");
          pwmApplication.getIntruderManager().convenience().markAddressAndSession(pwmSession);
          pwmApplication
              .getIntruderManager()
              .mark(
                  RecordType.USERNAME,
                  PwmConstants.CONFIGMANAGER_INTRUDER_USERNAME,
                  pwmSession.getLabel());
          final ErrorInformation errorInformation =
              new ErrorInformation(PwmError.ERROR_WRONGPASSWORD);
          pwmRequest.setResponseError(errorInformation);
          updateLoginHistory(pwmRequest, pwmRequest.getUserInfoIfLoggedIn(), false);
        }
      }
    }

    if ((persistentLoginAccepted || passwordAccepted)) {
      configManagerBean.setPasswordVerified(true);
      pwmApplication.getIntruderManager().convenience().clearAddressAndSession(pwmSession);
      pwmApplication
          .getIntruderManager()
          .clear(RecordType.USERNAME, PwmConstants.CONFIGMANAGER_INTRUDER_USERNAME);
      if (persistentLoginEnabled
          && !persistentLoginAccepted
          && "on".equals(pwmRequest.readParameterAsString("remember"))) {
        final int persistentSeconds = figureMaxLoginSeconds(pwmRequest);
        if (persistentSeconds > 0) {
          final Date expirationDate =
              new Date(System.currentTimeMillis() + (persistentSeconds * 1000));
          final PersistentLoginInfo persistentLoginInfo =
              new PersistentLoginInfo(expirationDate, persistentLoginValue);
          final String jsonPersistentLoginInfo = JsonUtil.serialize(persistentLoginInfo);
          final String cookieValue =
              pwmApplication.getSecureService().encryptToString(jsonPersistentLoginInfo);
          pwmRequest
              .getPwmResponse()
              .writeCookie(
                  PwmConstants.COOKIE_PERSISTENT_CONFIG_LOGIN, cookieValue, persistentSeconds);
          LOGGER.debug(
              pwmRequest,
              "set persistent config login cookie (expires "
                  + PwmConstants.DEFAULT_DATETIME_FORMAT.format(expirationDate)
                  + ")");
        }
      }

      if (configManagerBean.getPrePasswordEntryUrl() != null) {
        final String originalUrl = configManagerBean.getPrePasswordEntryUrl();
        configManagerBean.setPrePasswordEntryUrl(null);
        pwmRequest.getPwmResponse().sendRedirect(originalUrl);
        return true;
      }
      return false;
    }

    if (configManagerBean.getPrePasswordEntryUrl() == null) {
      configManagerBean.setPrePasswordEntryUrl(
          pwmRequest.getHttpServletRequest().getRequestURL().toString());
    }

    forwardToJsp(pwmRequest);
    return true;
  }