[keycloak-user] OIDC protocol extension

[Stian Thorgersen]

I wouldn't to a custom login protocol as that would be very hard to
maintain. We've actually ended up refactoring the branch you point to into
not using a login protocol.

Why not use an optional authenticator for this purpose? It can check the
scope and only display the additional consent step if the certain auth
request scope is there. It can then add a note to the user session which
you can map into the token with a protocol mapper.



On Tue, 23 Oct 2018 at 18:29, Karipineni, Neelima,M.D. <
NKARIPINENI at bwh.harvard.edu> wrote:

> We have a use case where we’re trying to implement an OAuth2 profile which
> requires an extra claim on the access token when a certain auth request
> scope is used.
> The expected behavior is that when a certain scope is present in the auth
> endpoint request then during the Authorization flow the user is shown an
> extra screen where they input an identifier which ultimately is included as
> a claim in the access token. Details are at
> http://docs.smarthealthit.org/authorization/ (Standalone launch sequence)
> for reference.
>
> Any suggestions on how to accomplish this in keycloak? I considered using
> an ActionToken like in the quickstarts external action token example, but
> the additional execution needs to happen even when the user has previously
> authenticated. It’s like an additional consent step after user and client
> authentication rather than an additional authentication step.
>
> My current thought is to implement a custom LoginProtocol that wraps
> OIDCLoginProtocol, as shown in
> https://github.com/keycloak/keycloak/tree/openshift-integration/services/src/main/java/org/keycloak/protocol/kubernetes,
> and have an additional redirect in the authenticated method that functions
> similarly to the external action token example. The callback endpoint would
> persist the extra claim against the client session until the access token
> is requested.
>
> I’m not sure it’s possible to extend the OIDC protocol within a new
> protocol. Preliminarily after installing a shell wrapper protocol, it’s
> missing the OIDC configuration properties and mappers in the admin console.
> Is something like this possible without copying/recreating large chunks of
> the OIDC code? If not, any suggestions on alternative ways to accomplish
> this?
>
> As an additional wrench, we’re still on v3.3.0 and upgrade is not on the
> schedule as of now.
>
>
>
>
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