return null;
        }
        if (permission.startsWith(fessConfig.getRoleSearchUserPrefix())
                && permission.length() > fessConfig.getRoleSearchUserPrefix().length()) {
            return aclPrefix + userPrefix + permission.substring(fessConfig.getRoleSearchUserPrefix().length());
        }
        if (permission.startsWith(fessConfig.getRoleSearchGroupPrefix())

     * @param loggerName The logger name.
     */
    public void setLoggerName(final String loggerName) {
        this.loggerName = loggerName;
    }

    /**
     * Set the permission separator.
     * @param permissionSeparator The permission separator.
     */
    public void setPermissionSeparator(final String permissionSeparator) {
        this.permissionSeparator = permissionSeparator;
    }

    /**

        // nothing
    }

    /**
     * Checks if the current user has permission to access the given resource.
     * For admin actions, verifies that the user has appropriate admin roles or
     * meets the secured annotation requirements.
     *
     * @param resource the login handling resource to check permission for
     * @throws LoginRequiredException if login is required

    }

    /**
     * Checks if a permission string is a user permission.
     *
     * @param permission The permission string.
     * @return true if it is a user permission, false otherwise.
     */
    public boolean isUserPermission(final String permission) {
        if (StringUtil.isNotBlank(permission)) {
            return permission.startsWith(ComponentUtil.getFessConfig().getRoleSearchUserPrefix());

     *
     * @param searchRequestParams The search request parameters
     * @param data The search render data to populate with results
     * @param userBean Optional user information for permission checking
     */
    public void search(final SearchRequestParams searchRequestParams, final SearchRenderData data,
            final OptionalThing<FessUserBean> userBean) {

        assertArrayEquals(permissions, user.getPermissions());

        // Test with empty permissions
        permissions = new String[] {};
        user = new TestFessUser("testuser", new String[] {}, new String[] {}, permissions);
        assertArrayEquals(permissions, user.getPermissions());

        // Test with null permissions

        fileProtocols[fileProtocols.length - 1] = prefix;
    }

    /**
     * Checks if the given URL is a file path protocol that requires directory and permission handling.
     * Used for incremental crawling directory detection and file permission processing.
     *
     * @param url the URL to check
     * @return true if the URL uses a file path protocol (smb, smb1, file, ftp, s3, gcs)
     */

            }, errorHook);
        }
    }

    /**
     * Encodes permission strings into an array.
     *
     * @param permissionsText the permissions text (newline-separated)
     * @return encoded permission array
     */
    protected static String[] encodePermissions(final String permissionsText) {

    <example>${fe:message("labels.foobar", "default value")}</example>
  </function>

  <function>
    <description>Check if user has a permission.</description>
    <name>permission</name>
    <function-class>org.codelibs.fess.taglib.FessFunctions</function-class>
    <function-signature>boolean hasActionRole(java.lang.String)</function-signature>

     * @return The query parser.
     */
    public static QueryParser getQueryParser() {
        return getComponent(QUERY_PARSER);
    }

    /**
     * Gets the permission helper component.
     * @return The permission helper.
     */
    public static PermissionHelper getPermissionHelper() {
        return getComponent(PERMISSION_HELPER);
    }

    /**
     * Gets the SSO manager component.