bugfix：设备地址变化会引起目录订阅任务失效，需要重新添加

lishuyuan

2023-11-01 5cd2e2c41b6460ea628b158e9f22b6788e99eee1

 src/main/java/com/genersoft/iot/vmp/gb28181/auth/DigestServerAuthenticationHelper.java

@@ -171,7 +171,7 @@
     */
    public boolean doAuthenticatePlainTextPassword(Request request, String pass) {
        AuthorizationHeader authHeader = (AuthorizationHeader) request.getHeader(AuthorizationHeader.NAME);
        if ( authHeader == null ) {
        if ( authHeader == null || authHeader.getRealm() == null) {
            return false;
        }
        String realm = authHeader.getRealm().trim();