protected boolean loginUser(
      FilterChain chain,
      HttpServletRequest httpRequest,
      HttpServletResponse httpResponse,
      VOUser voUser,
      AuthorizationRequestData rdo,
      IdentityService identityService)
      throws ServletException, IOException {

    HttpSession session = httpRequest.getSession();
    boolean onlyServiceLogin = BesServletRequestReader.onlyServiceLogin(session);
    String forwardUrl = (String) session.getAttribute(Constants.SESS_ATTR_FORWARD_URL);
    SessionBean sessionBean = (SessionBean) session.getAttribute(Constants.SESS_ATTR_SESSION_BEAN);

    ServiceAccess serviceAccess = ServiceAccess.getServiceAcccessFor(session);

    if (onlyServiceLogin) {
      session.setAttribute(Constants.SESS_ATTR_ONLY_SERVICE_LOGIN, Boolean.TRUE);
    }

    if (!ADMStringUtils.isBlank(forwardUrl)) {
      session.setAttribute(Constants.SESS_ATTR_FORWARD_URL, forwardUrl);
    }

    if (sessionBean != null) {
      session.setAttribute(Constants.SESS_ATTR_SESSION_BEAN, sessionBean);
    }

    if (!ADMStringUtils.isBlank(rdo.getMarketplaceId())) {
      session.setAttribute(Constants.REQ_PARAM_MARKETPLACE_ID, rdo.getMarketplaceId());
    }

    // authenticate the user
    // IMPORTANT: Changes to this method must also be applied to
    // UserBean.login()
    try {
      serviceAccess.login(voUser, rdo.getPassword(), httpRequest, httpResponse);
    } catch (CommunicationException e) {
      handleCommunicationException(chain, httpRequest, httpResponse, rdo);
      return false;
    } catch (LoginException e) {
      logger.logInfo(
          Log4jLogger.ACCESS_LOG,
          LogMessageIdentifier.INFO_USER_LOGIN_INVALID,
          httpRequest.getRemoteHost(),
          Integer.toString(httpRequest.getRemotePort()),
          StringUtils.isNotBlank(voUser.getUserId()) ? voUser.getUserId() : "",
          IPResolver.resolveIpAddress(httpRequest),
          voUser.getTenantId());
      try {
        voUser = identityService.getUser(voUser);
      } catch (ObjectNotFoundException e1) {
        handleUserNotRegistered(chain, httpRequest, httpResponse, rdo);
        return false;
      } catch (SaaSApplicationException e1) {
        setErrorAttributesAndForward(errorPage, httpRequest, httpResponse, e1);
        return false;
      }

      if (voUser.getStatus() != null
          && voUser.getStatus().getLockLevel() > UserAccountStatus.LOCK_LEVEL_LOGIN) {
        httpRequest.setAttribute(Constants.REQ_ATTR_ERROR_KEY, BaseBean.ERROR_USER_LOCKED);
        forward(errorPage, httpRequest, httpResponse);
        return false;
      }

      handleLoginException(chain, httpRequest, httpResponse, rdo);
      return false;
    }

    if (!rdo.isMarketplace()
        && !rdo.isAccessToServiceUrl() // BE09588 Login is OK if a
        // service is accessed, whose
        // subscription has no
        // marketplace
        && identityService.getCurrentUserDetails().getOrganizationRoles().size() == 1
        && identityService
            .getCurrentUserDetails()
            .getOrganizationRoles()
            .contains(OrganizationRoleType.CUSTOMER)) {
      if (ADMStringUtils.isBlank(rdo.getMarketplaceId())) {
        if (redirectToMpUrl(httpRequest, httpResponse)) {
          setupUserDetail(httpRequest, rdo, identityService, session);
          return false;
        } else {
          httpRequest.setAttribute(
              Constants.REQ_ATTR_ERROR_KEY, BaseBean.ERROR_INVALID_MARKETPLACE_URL);
          forward(BaseBean.MARKETPLACE_ERROR_PAGE, httpRequest, httpResponse);
        }
      } else {
        setupUserDetail(httpRequest, rdo, identityService, session);
        forward(BaseBean.MARKETPLACE_START_SITE, httpRequest, httpResponse);
      }
      return false;
    }

    // get the service again because the credentials have been
    // changed (important for WS usage)
    identityService = serviceAccess.getService(IdentityService.class);
    try {
      identityService.refreshLdapUser();
    } catch (ValidationException e) {
      logger.logDebug(
          "Refresh of LDAP user failed, most likely due to missing/wrong LDAP settings");
    }

    logger.logInfo(
        Log4jLogger.ACCESS_LOG,
        LogMessageIdentifier.INFO_USER_LOGIN_SUCCESS,
        StringUtils.isNotBlank(voUser.getUserId()) ? voUser.getUserId() : "",
        IPResolver.resolveIpAddress(httpRequest),
        voUser.getTenantId());
    return true;
  }
  protected void handleProtectedUrlAndChangePwdCase(
      FilterChain chain,
      HttpServletRequest httpRequest,
      HttpServletResponse httpResponse,
      AuthorizationRequestData rdo)
      throws IOException, ServletException {

    if (logger.isDebugLoggingEnabled()) {
      logger.logDebug("Access to protected URL='" + rdo.getRelativePath() + "'");
    }

    ServiceAccess serviceAccess = ServiceAccess.getServiceAcccessFor(httpRequest.getSession());

    try {
      if (rdo.isAccessToServiceUrl()) {
        /*
         * We must NOT read the request parameters for service URLs
         * because this would cause a state switch of the request.
         * Afterwards the rewriting of a POST request may fail because
         * the parameters can't be accessed via the request input
         * stream.
         */
        httpRequest = handleServiceUrl(chain, httpRequest, httpResponse, rdo);
        if (httpRequest == null) {
          return;
        }
      } else if (ADMStringUtils.isBlank(rdo.getUserId())) {
        if (authSettings.isServiceProvider()) {
          if (isSamlForward(httpRequest)) {
            SAMLCredentials samlCredentials = new SAMLCredentials(httpRequest);
            rdo.setUserId(samlCredentials.getUserId());
            if (rdo.getUserId() == null) {
              httpRequest.setAttribute(
                  Constants.REQ_ATTR_ERROR_KEY, BaseBean.ERROR_INVALID_SAML_RESPONSE);
              forward(errorPage, httpRequest, httpResponse);
            }
          }
        } else {
          rdo.setUserId(httpRequest.getParameter(Constants.REQ_PARAM_USER_ID));
        }
      }

      // continue if user is already logged-in
      if (handleLoggedInUser(chain, httpRequest, httpResponse, serviceAccess, rdo)) {
        return;
      }

      // the httpRequest was already processed and we forwarded to the
      // corresponding page therefore we must not try to login again
      if (httpRequest.getAttribute(Constants.REQ_ATTR_ERROR_KEY) != null) {
        chain.doFilter(httpRequest, httpResponse);
        return;
      }

      refreshData(authSettings, rdo, httpRequest, httpResponse);

      // user not logged in, check user-name and password before login
      // don't do a trim on password because it may have
      // leading/trailing/only blanks

      if (authSettings.isServiceProvider()) {
        rollbackDefaultTimeout(httpRequest);
        if (ADMStringUtils.isBlank(rdo.getUserId())) {
          httpRequest.setAttribute(
              Constants.REQ_ATTR_ERROR_KEY, BaseBean.ERROR_INVALID_SAML_RESPONSE);
          if (isSamlForward(httpRequest)) {
            forward(errorPage, httpRequest, httpResponse);
          } else {
            forwardToLoginPage(rdo.getRelativePath(), true, httpRequest, httpResponse, chain);
          }
          return;
        }
      } else {
        if (ADMStringUtils.isBlank(rdo.getUserId()) || !rdo.isPasswordSet()) {
          if (!rdo.isMarketplace()
              && (!ADMStringUtils.isBlank(rdo.getUserId()) || rdo.isPasswordSet())) {
            // login data not complete, user or password empty
            httpRequest.setAttribute(Constants.REQ_ATTR_ERROR_KEY, BaseBean.ERROR_LOGIN);
          }
          forwardToLoginPage(rdo.getRelativePath(), true, httpRequest, httpResponse, chain);
          return;
        }
      }

      IdentityService identityService = serviceAccess.getService(IdentityService.class);
      VOUser voUser;
      try {
        voUser = readTechnicalUserFromDb(identityService, rdo);
      } catch (ObjectNotFoundException e) {
        handleUserNotRegistered(chain, httpRequest, httpResponse, rdo);
        return;
      } catch (SaaSApplicationException e) {
        setErrorAttributesAndForward(errorPage, httpRequest, httpResponse, e);
        return;
      }

      if (!authSettings.isServiceProvider()) {
        if (isAccountLocked(httpRequest, httpResponse, voUser)) {
          return;
        }
      }

      final boolean operationSucceeded;
      if (!authSettings.isServiceProvider() && rdo.isRequestedToChangePwd()) {
        operationSucceeded =
            handleChangeUserPasswordRequest(chain, httpRequest, httpResponse, rdo, identityService);
      } else {
        operationSucceeded =
            loginUser(chain, httpRequest, httpResponse, voUser, rdo, identityService);
      }
      if (!operationSucceeded) {
        return;
      }
      rdo.setUserDetails(identityService.getCurrentUserDetails());

      // read user details value object and store it in the session, DON'T
      // use old session, because it might have been invalidated
      httpRequest.getSession().setAttribute(Constants.SESS_ATTR_USER, rdo.getUserDetails());

      if (isPageForbiddenToAccess(httpRequest, rdo, serviceAccess)) {
        forward(insufficientAuthoritiesUrl, httpRequest, httpResponse);
      }
      // check if user must change his password
      if (!authSettings.isServiceProvider()
          && (rdo.getUserDetails().getStatus() == UserAccountStatus.PASSWORD_MUST_BE_CHANGED)) {
        forwardToPwdPage(rdo.getUserDetails().getUserId(), httpRequest, httpResponse);
      } else {
        redirectToPrimarilyRequestedUrl(chain, httpRequest, httpResponse, serviceAccess, rdo);
      }

    } catch (NumberFormatException e) {
      handleNumberFormatException(chain, httpRequest, httpResponse, e, rdo);
    } catch (ServletException e) {
      handleServletException(httpRequest, httpResponse, e);
    } catch (MarketplaceRemovedException e) {
      handleMarketplaceRemovedException(httpRequest, httpResponse);
    }
  }