I've implemented support for openID with special case for Google and
Yahoo mail (www.cellamea.eu).

I've written a servlet that uses openid4java to interact with the
openid providers. I can make the code available. On this moment,
it's not packaged in an isolated way, so it's not usable out of the
box, but it shows what you need to do.

I wanted also to provide support for Facebook, MSN, LinkedIn etc...
but I don't think that they are pure openid providers and I have not
yet found the time
to investigate the peculiarities of their authentication protocol.

Another possibility is to look at Janrain Engage , formerly known as
RPX (www.janrain.com). They support a whole variety of authentication
providers (that's their business).
I looked at it at the time, but I could not figure out how to
integrate it with a GWT frontend (interacting from GWT with the
Janrain's popup), and with my backend. It would be great if Janrain
could provide a GWT
integration. Anyone from Janrain on this mailing list?


On 29 jul, 07:00, V M <[email protected]> wrote:
> Hello GWT Users,
>
> I am just wondering if we have any Library to do authentication using OpenID
> providers like Google accounts/Facebook.
>
> Here is what i am trying to do:
>
> * Create a site which needs log-in widget/page/module to customize UI for
> Users.
>
> What is the best way to create a Login form in this case?
>
> I appreciate if you could point me to some examples.
>
> Thanks in advance.
>
> -V M

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