[keycloak-dev] Proposal of using existing authentication and authorization server on behalf of keycloak browser-based authentication

[乗松隆志 / NORIMATSU，TAKASHI]

Hello.

Previously, I had proposed the feature and its implementation of delegating authentication and authorization to an external existing server on behalf of keycloak's browser-based authentication mechanism, and had gotten advices that it is appropriate to use Identity Brokering for such the feature.

I've re-implemented this feature again by Identity Brokering. The description and implementation of this feature is mentioned below.
https://github.com/Hitachi/PoV-keycloak-delegate-authn-consent
https://github.com/Hitachi/PoV-keycloak-delegate-authn-consent/tree/master/src/keycloak/examples/providers/delegate-authn-consent
It can delegate not only authentication but authorization(consent).

Kindly review it and provide us some comment and advices. 
We would like to contribute this feature onto keycloak.

Best Regards
Takashi Norimatsu
Hitachi, Ltd.

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From: Stian Thorgersen [mailto:sthorger at redhat.com] 
Sent: Thursday, June 29, 2017 6:23 PM
To: 乗松隆志 / NORIMATSU，TAKASHI
Cc: keycloak-dev at lists.jboss.org
Subject: [!]Re: [keycloak-dev] Proposal of using existing authentication server on behalf of keycloak browser-based authentication

There's an SPI to implement your own custom identity brokering provider [1].

[1] https://github.com/keycloak/keycloak/blob/master/server-spi-private/src/main/java/org/keycloak/broker/provider/IdentityProvider.java

On 29 June 2017 at 10:51, 乗松隆志 / NORIMATSU，TAKASHI <takashi.norimatsu.ws at hitachi.com> wrote:
I need to use the authentication server without OIDC/OAuth2/SAMLv2 implementation as an external IdP,
in order to integrate existing authentication system.
(some commercial products supports such the case)

I consulted identity broker's section in keycloak's manual below and found that if I use this feature the external IdP must support OIDC or SAMLv2.
https://keycloak.gitbooks.io/documentation/server_admin/topics/identity-broker.html

Therefore, I realized it by using redirect based authentication flows.

Can identity Brokering can support such the case?

Aside from this, I'd like to contribute it to Community extensions and examples.

Best Regards
Takashi Norimatsu
Hitachi, Ltd.

---
From: Stian Thorgersen [mailto:sthorger at redhat.com]
Sent: Tuesday, June 27, 2017 5:52 PM
To: 乗松隆志 / NORIMATSU，TAKASHI
Cc: keycloak-dev at lists.jboss.org
Subject: [!]Re: [keycloak-dev] Proposal of using existing authentication server on behalf of keycloak browser-based authentication

I'm not in favour of adding this. If it's using redirect based authentication flows it should be done through identity brokering, not authentication flows. It's also a very complex example that we don't want to maintain. We've also in the process of moving all examples away from the main Keycloak repository into a separate quickstart repository.

On 27 June 2017 at 08:54, 乗松隆志 / NORIMATSU，TAKASHI <takashi.norimatsu.ws at hitachi.com> wrote:
Hello.

Previously, I had proposed the feature of delegating authentication to an external authentication server on behalf of keycloak's browser-based authentication mechanism.

I've integrated this feature to keycloak's "examples" packages and send PR (https://github.com/keycloak/keycloak/pull/4260).
Hope this PR is reviewed and merged as an example for combining some providers to customize keycloak.

Detailed description of this feature is mentioned below.
https://github.com/Hitachi/PoV-keycloak-authentication-delegation

I am now engaging in integrating this feature to keycloak as product-base default providers, but encounter technical problems about writing arquillian. Would someone tell me how to resolve this problem?

[Problem]
- I could not find how to run an external authentication server(application running on wildfly 10) during each arquillian test cases.

After resolving this problem and writing and running arquillian test cases, I'll send PR for this feature as product-base default providers.

Best Regards
Takashi Norimatsu
Hitachi, Ltd.

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