* such as metadata requests and logout actions.
 */
public enum SsoResponseType {
    /**
     * Indicates a request for SSO metadata, which is typically used for
     * configuration and discovery in protocols like SAML.
     */
    METADATA,

    /**
     * Indicates a request to perform a logout operation, terminating the
     * user's SSO session.
     */
    LOGOUT;

    /**
     * Handles user logout and redirects to the login page.
     *
     * @return the HTML response after logout
     */
    @Execute
    public HtmlResponse index() {
        final OptionalThing<FessUserBean> userBean = getUserBean();
        activityHelper.logout(userBean);
        final String redirectUrl = userBean.map(user -> ComponentUtil.getSsoManager().logout(user)).orElse(null);
        fessLoginAssist.logout();

     * @return The action response.
     */
    ActionResponse getResponse(SsoResponseType responseType);

    /**
     * Performs logout for the specified user.
     * @param user The user to logout.
     * @return The logout URL or null if not applicable.
     */
    String logout(FessUserBean user);

            }
        }
        return null;
    }

    /**
     * Performs logout operations for the specified user using SSO.
     *
     * @param user The user to logout
     * @return The logout URL from the SSO authenticator, or null if SSO is not available
     */
    public String logout(final FessUserBean user) {
        if (available()) {

											<la:link href="/admin" styleClass="dropdown-item">
												<la:message key="labels.administration" />
											</la:link>
										</c:if>
										<la:link href="/logout/" styleClass="dropdown-item">
											<la:message key="labels.logout" />
										</la:link>
									</div>
								</div>
							</li>
						</c:when>
						<c:when test="${ pageLoginLink }">
							<li class="nav-item"><la:link href="/login"

											<la:link href="/admin" styleClass="dropdown-item">
												<la:message key="labels.administration" />
											</la:link>
										</c:if>
										<la:link href="/logout/" styleClass="dropdown-item">
											<la:message key="labels.logout" />
										</la:link>
									</div>
								</div>
							</li>
						</c:when>
						<c:when test="${ pageLoginLink }">
							<li class="nav-item"><la:link href="/login"

														<la:message key="labels.administration" />
													</la:link>
												</c:if>
												<la:link href="/logout/" styleClass="dropdown-item">
													<la:message key="labels.logout" />
												</la:link>
											</div>
										</div>
									</li>
								</c:when>
								<c:when test="${ pageLoginLink }">

    }

    /**
     * SSO logout endpoint.
     *
     * This method handles SSO logout requests, coordinating with the SSO provider
     * to properly terminate the user's SSO session. It may involve redirecting
     * to the SSO provider's logout endpoint or performing local logout operations.
     *
     * @return ActionResponse directing to the logout page or SSO provider logout endpoint
     */
    @Execute

    <error-code>403</error-code>
    <location>/WEB-INF/view/error/redirect.jsp?type=logOut</location>
  </error-page>
  <error-page>
    <error-code>404</error-code>
    <location>/WEB-INF/view/error/redirect.jsp?type=notFound</location>
  </error-page>
  <error-page>
    <error-code>408</error-code>
    <location>/WEB-INF/view/error/redirect.jsp?type=logOut</location>
  </error-page>
  <error-page>
    <error-code>500</error-code>

 *
 * # Assertion Consumer Service URL
 * saml.sp.assertion_consumer_service.url=https://your-fess-server.example.com/sso/
 *
 * # Single Logout Service URL
 * saml.sp.single_logout_service.url=https://your-fess-server.example.com/sso/logout
 * </pre>
 *
 * <h2>Complete Configuration Example (Okta)</h2>
 * <pre>
 * sso.type=saml
 *
 * # IdP settings from Okta SAML setup instructions