@Size(max = 1000)
    public String ldapSecurityPrincipal;

    @Size(max = 1000)
    public String ldapAdminSecurityPrincipal;

    @Size(max = 1000)
    public String ldapAdminSecurityCredentials;

    @Size(max = 1000)
    public String ldapBaseDn;

    @Size(max = 1000)
    public String ldapAccountFilter;

    @Size(max = 1000)
    public String ldapGroupFilter;

    // GET /api/admin/general
    @Execute
    public JsonResponse<ApiResult> get$index() {
        final EditBody form = new EditBody();
        AdminGeneralAction.updateForm(fessConfig, form);
        form.ldapAdminSecurityCredentials = null;
        return asJson(new ApiConfigResponse().setting(form).status(Status.OK).result());
    }

    // POST /api/admin/general
    @Execute