Thanks Maarten.
I didn't fully understood? Sorry, I'm a newbie.
Inside my server coding, I have this line of code:
acceptor.bind( new InetSocketAddress(PORT), new ServerSessionHandler(),
cfg);
Where ServerSessionHandler handle the server and client input output.
Where should I insert your sample coding?
Maarten Bosteels-4 wrote:
>
> Hello,
>
> I think an authentication filter will always be tightly coupled with the
> protocol: the filter needs to know whether
> the user is already authenticated and what the authentication command is.
>
> Here is an example :
>
> public class AuthenticationFilter extends IoFilterAdapter {
>
> protected Logger logger = LoggerFactory.getLogger(
> AuthenticationFilter.class);
>
> private NotAuthenticated notAuthenticated = new NotAuthenticated();
>
> public void messageReceived(NextFilter nextFilter, IoSession session,
> Object message) throws Exception {
> User user = (User) session.getAttribute("USER");
> if (user != null || message instanceof LoginCommand) {
> nextFilter.messageReceived(session, message);
> } else {
> logger.warn("not authenticated => reply with error
> message");
> session.write(notAuthenticated);
> }
> }
> }
>
> Add the filter to the chain AFTER the ProtocolCodecFilter.
> Let us know if you have any better ideas.
>
> Maarten
>
> On 9/1/07, kwtan <[EMAIL PROTECTED]> wrote:
>>
>>
>> How do I implement authentication filter? Is there any sample code for
>> reference?
>>
>> Thank you!
>> --
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>> Nabble.com
>> .
>>
>>
>
>
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