I am trying to integrate a legacy OAuth 2.0 provider which does not support OpenID Connect 1.0 as identity provider on Keycloak.
This legacy provider provides a xml service that returns the user details similar to userinfo.
I see that Keycloak has the concept of social providers but I can’t find any resources of how to implement and register on GUI a new one.
Here is the part of the documentation in Keycloak that is referring to this sort of providers: Identity Brokering APIs.
I also suggest you to take a look at the source code of some custom providers implemented as Keycloak extensions. That can be quite helpful.
Implementing a custom identity provider is typically not a straightforward task and there will be a lot of edge cases and unpredictable scenarios. If your Keycloak server can have access to the database of your identity provider (e.g. via a readonly view) then it would be much easier to just implement a custom UserStorageProvider that fetches users for Keycloak. All the other stuff will be handled by Keycloak itself. Then you can also have some custom mappers that fetch those user attributes and allowing you to put them inside tokens.
Related
I'm part of a small team as a nodeJS dev and I've been tasked into researching how this can be accomplished. I'm fairly new to OAuth and authentication so please bear with me.
Currently we have a next.js webapp that uses NextAuth for authentication with the user store in DynamoDB. What we want to do is provide an Oauth2 flow so a user can consent to a 3rd party service having access to their profile information via an endpoint. In this case we are the resource server, the 3rd party is the "client" and our user is the resource owner.
The piece of the puzzle I'm trying to put together is how does Auth0 work with NextAuth in this scenario? I want Auth0 to check if the user is logged in (otherwise prompting them to do so) via NextAuth, and for NextAuth to say "this is fine" and then for Auth0 to issue a token to the 3rd party (concluding a "normal" OAuth flow). Is this were SAML comes into play? I see there's a software package called SAML Jackson (lol) and there's a Next-auth integration for it.
Most examples I see usually work the other way around, with Auth0 as the identity provider, and what we're doing may be unique. Sorry if this question comes across as abstract but that's how it exists in my mind currently. Any help understanding this would be greatly appreciated.
You can connect your user store to Auth0 as a custom database connection. And then create an application inside Auth0 and enable the DB connection for the app. This way Auth0 acts as the Authorization server for your client app.
NextAuth.js is just an authentication library that supports the OAuth2.0/OpenID protocols. The role of NextAuth is simply to initiate the authentication flow, take the user to the Identity Provider (in this case Auth0 backed by a custom user store) and finally process the authorization response from Auth0. The authorization response (code) is received at the application end and then exchanged for access_token and user profile (all handled by NextAuth.js).
And for your query on SAML, it's a standard for exchanging identity information between two parties an Identity Provider (IdP) and a service provider (SP). The same is achieved by its more modern counterparts OAuth2.0/OpenID Connect. Typically third-party apps which are deployed in an enterprise setting use SAML to integrate with on-premise Identity Management Systems like ActiveDirectory. You can read more about SAML on https://boxyhq.com/blog/understanding-saml-sso-the-basics-from-the-user-side.
We are running some tests on Keycloak to implement it on our company and I am are wondering what is the best approach to make Keycloak interact with our legacy system.
In our scenario, we have a native login interface and we are going to use direct grant - we are not going to authorization code flow / redirect flow using a browser and we don't have any kind of social login.
The other point is: we must to keep our native interface.
Based on that, what is the best/right approach to implement this flow? I have set my client on Keycloak with direct grant but the problem is that every user must exists in Keycloak. Isn't possible to use Keycloak as a "token emissor" instead of IDP?
In case of Keycloak must be an IDP, what is the right approach to allow Keycloak log in legacy system? Should I implement a custom Identity Provider? Will mobile make a login request to Keycloak or to legacy system?
Keycloak must somehow be able to either authenticate the user or delegate the authentication of the user to a federated identity provider. A few options:
If you want to use Keycloak as an identity provider, you could do
this by migrating your user base to Keycloak, or by making use of
User Storage Federation, which means Keycloak will use your existing
user database as a source. In this case, the login interface will be
a Keycloak interface (which you can customize to your wishes). See:
https://www.keycloak.org/docs/latest/server_admin/#_user-storage-federation
Another option is to convert your legacy system into an identity
provider that complies with either the OIDC or SAML protocol, and
set it up as an identity provider for Keycloak. In this case you can
keep your existing login interface, but it will probably require
quite some changes to your legacy system. See:
https://www.keycloak.org/docs/latest/server_admin/#_identity_broker
We maintain a website that uses the built-in .NET Core / EF Identity model so all user data is in DB tables. We now have a need to support SSO into another 3rd party system which requires that we host our own IDP with support of SAML 2.0. We don't want to change our identity model or login process for our own website, we just need to return a SAML Response for a user without our website as a response to an SSO request by the 3rd party website. Our site is hosted in Azure as a Web App but we don't use Azure AD for this website which is public facing for external client employees.
Are there any recommendations to create a simple IDP that maps to our existing AspNetUsers database table to retrieve and prepare an SSO Response but doesn't impact our existing identity setup? In all likelihood, we'll have to support other SSO protocols in the future with the same implementation. Do we need to go as far as to implement IdentityServer4, making the existing web app act as both an IDP and a client app?
idsrv4 supports the EF identity model (AFAIK). If it doesn't you could always write your own plugin.
idsrv4 then becomes the IDP and will authenticate against your current DB.
idsrv4 has SAML and WS-Fed plugins to support future SSO.
Your other choice is to implement something like Auth0 that supports authentication against local DB and has full support for SAML and WS-Fed.
Currently my organization uses a number of web apps/mobile apps/APIs, some of which authenticate against an in-house IdP and others which use a third-party proprietary system (over which we have no control).
We have been asked to implement SSO for these web applications and as a result I have been reading up on OpenID Connect. I believe this would be a better solution than SAML given that (a) end-users are not always enterprise users, and (b) SAML not designed for mobile applications.
I believe I understand the flow reasonably well but have one sticking point. To allow users to authenticate using an external IdP, we would need to map the user back to our internal id. For example, user authenticates using OIDC/Google, resulting in us receiving the user's unique Google idenitifer (and email etc if we queried further), but this is not useful to us until we can map the Google identifier back to our internal customer id.
Is this mapping out of scope for OIDC? If so, is there a best-practice method for doing this? I'm sure we are not alone in this requirement...
Thanks,
John
Is this mapping out of scope for OIDC?
Short answer, yes.! If your backend require a comparison/validation with internal identity details, then it has to be done out-of-scope of OpenID Connect(OIDC) protocol. OIDC simply define the process of obtaining tokens (ID and access token), which are required for authentication and authorization.
is there a best-practice method for doing this?
One option is to use out of band directory synchronization. For example, Google provider Google Cloud Directory Sync (GCDS), which allows you to synchronize identity details to LDAP or MS Active directory. Other alternative is to use SCIM protocol to communicate and provision users dynamically. For example Google provide that support as well.
Alternatively, you can use just-in-time provision at the time you receive tokens. This support will depend on your identity provider implementation. For example, WSO2 identity server support both JIT provisioning as well as SCIM.
How can I use AMA custom authentication with OAuth service provider?
Perhaps, the AMA doc of Implementing Bluemix Single Sign On as a custom in identity provider. in Getting started could help this. But this doc has deleted.
Unfortunately, we do not support Single Sign On.
Using Advanced Mobile Acces(AMA) custom authentication involves 2 steps.
In the first step, you have to configure the authentication mechanism to access the backend services and this is done in the AMA dashboard of the backend application. Please see the sub-section Configuring an authentication mechanism for back end access in the document Advanced Mobile Access Configuration page section Registering your Advanced Mobile Access Client App for details on configuring the custom authentication mechanism. Basically, you will be providing the url of the custom identity provider page that will handle authentication challenge.
In the second step, you have to configure the client app to use custom authentication and please see the document section
Using a custom identity provider
for procedure to do it.
Did you navigate down below FB and Google auth on that link you provided?
There is a doc on using a custom identity provider