├── helper/                    # Cross-cutting utilities (~40+ helpers)
├── crawler/                   # Crawling engine (processor, transformer, service)
├── sso/                       # SSO implementations (oic, saml, spnego, entraid)
├── auth/                      # Authentication management
├── ldap/                      # LDAP integration
├── filter/                    # Servlet filters

    @Size(max = 10)
    public String searchFileProxy;

    /** Enable or disable using browser locale for search. */
    @Size(max = 10)
    public String searchUseBrowserLocale;

    /** SSO type (none, oic, saml, spnego, entraid). */
    @Size(max = 100)
    public String ssoType;

    /** User agent string for crawling operations. */
    @Size(max = 1000)
    public String crawlingUserAgent;

        fessConfig.setSystemProperty("oic.redirect.url", form.oicRedirectUrl);
        fessConfig.setSystemProperty("oic.scope", form.oicScope);
        fessConfig.setSystemProperty("oic.base.url", form.oicBaseUrl);
        fessConfig.setSystemProperty("oic.default.groups", form.oicDefaultGroups);
        fessConfig.setSystemProperty("oic.default.roles", form.oicDefaultRoles);

        // SAML

                                            <la:option value="none">None</la:option>
                                            <la:option value="oic">OpenID Connect</la:option>
                                            <la:option value="saml">SAML</la:option>
                                            <la:option value="spnego">SPNEGO</la:option>