In general, It's as easy as to create a HttpSession in the
RemoteServiceServlet.
I've created an abstract BaseService that only accepts RPC calls when
the child Service NOT "isSecured()" OR when (the child Service
"isSecured()" AND there's a HttpSession previously stablished).
abstract public class BaseService extends RemoteServiceServlet
{
private static final Logger logger = Logger.getLogger
( BaseService.class);
public abstract boolean isSecured( );
@Override
public String processCall( String payload) throws
SerializationException
{
HttpSession session = getThreadLocalRequest().getSession
(false);
DatosThread.setSession( session);
if( isSecured( )) {
if( (session == null) || (session.getAttribute
( "user") == null))
{
// User not authenticated!
logger.error( "User not authenticated!");
try {
getThreadLocalResponse().sendError( 401);
} catch (IOException e) {
logger.error("ERROR sending HTTP 401", e);
}
return "";
}
}
String result = super.processCall( payload);
return result;
}
}
public class SecurityImpl
extends BaseService
implements Security
{
private static final Logger logger = Logger.getLogger
( SecurityImpl.class);
public User authenticateUser( String username, String password)
{
logger.debug( "INIT logging " + username);
User user = findUser( username);
if( (user != null) && user.getPassword( ).equals( password))
{
HttpSession session = getThreadLocalRequest(
).getSession( true);
session.setAttribute("user", user);
logger.debug( "User logged");
return new User( user.getLogin( ), "", user.getProfile(
));
}
logger.debug( "Logging rejected");
return null;
}
@Override
public boolean isSecured( )
{
return false;
}
}
public class ModelImpl
extends BaseService
implements Model
{
private static final Logger logger = Logger.getLogger
( ModelImpl.class);
...... rpc methods ...
@Override
public boolean isSecured( )
{
return true;
}
}
On Mar 22, 11:13 pm, stsch <[email protected]> wrote:
> Hi,
>
> I have just started with GWT. What are the approaches to develop a
> stateful GWT application? Could any of the experts please summarize
> this a bit for a beginner and maybe point me/us to some reference
> material?
>
> Thanks,
> -StSch-
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