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#OAuth2

2

Articles and Questions regarding OAuth2 Authentication.

Question
· Nov 17, 2023
Testing OAuth2

I am attempting to setup my first OAuth2 client, as we are adventuring into the realm of making FHIR API calls to our EMR from HealthShare Health Connect.

I have gone through and set up the Issuer Endpoint, and Client Configuration but now I want to test it and verify that the setup is correct. When I setup the Client Configuration, it would not allow me to use Discovery as it was saying I needed a "Client secret" but was not given one. So I set it up manually, thinking I hit all the information correctly.

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I'm trying to implement an OAuth2 server, but I have som issues when trying to setup JWT under OAuth 2.0->Client.

I get the error message saying "No match between server name 'localhost' and SSL certificate values 'cache'". I have set up a SSL/TLS configuration as simple as possible without any certificate files. I'm accessing my server via HTTPS with an unsigned certificate.

Can anyone point me in the right direction on how to resolve the issue I'm encountering.

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I'm trying to save a list of AccessTokens a user for a specific user. This way I could present it together with other user-data.

I have tried calling ##class(OAuth2.Server.AccessToken).OpenByCode(authCode) from %OAuth2.Server.Authenticate's AfterAuthenticate() method. This only returns things like State and AuthorizationCode, but the AccessToken is empty at this point (afterwards it becomes filled out).

Is there a way to achieve storing the AccessToken as part of the login system?

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I am trying to use IRIS for Health as a Facade for an external FHIR Server, where IRIS provides the proper authentication.
The client authenticates using a bearer token obtained from the IRIS OAuth2 server via a jwt client assertion.
The IRIS endpoint, however, returns a 401 as soon as I remove the Unauthenticated access

Is there w way to make this work through configuration?

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I finally figured out how to get JWT token using set x = ##class(%SYS.OAuth2.Authorization).GetAccessTokenClient("medbank","openid fhirUser",.prop,.err).

I also found iris-fhir-client app on Open Exchange. I registered Epic sandbox server, but I cannot list resources. I suspect I need to integrate authorization / authentication. How do I do this with irisfhirclient py?

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I want to integrate IRIS with Keycloak OAuth2 provider to use delegated authentication everywhere and to secure everything - sys*/Portal applications, REST services, FHIR server and so on. If an unathenticated user tries to access any IRIS URL - he or she should be redirected to Keycloak. After the user has successfully authenticated, i would like to access his requistes (username, email, roles, scopes) extracted from the JWT token, programmatically. What should be done to achieve that?

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I am trying to work with Epic on FHIR. Epic's documentation stated, your application makes a HTTP POST request to the authorization server's OAuth 2.0 token endpoint to obtain access token.

Set tSC = ##class(%SYS.OAuth2.Authorization).GetAccessTokenClient(pClient,pScopes,.prop,.err) returns

ERROR #9761: No key in provided JWKS for alg ES512 and kid

I check this /csp/sys/oauth2/OAuth2.JWTServer.cls?client_name=medbank and I see this:

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Hi,

Most of my development experience is with HL7v2 interfaces and I don't have a background in web development and I'm very weak with javascript.

I'm looking for suggestions of learning resources to learn FHIR and 'SMART on FHIR' (JavaScript, OpenID connect, OAuth2) for developers like myself who mostly do HL7v2 integrations - but see FHIR as the future - and want to develop their skills!

I've found these

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Question
· May 2, 2023
JWS/JWT Header X5C

Hello All,

I'm trying to sign some custom JWT with x.509 certs but running into a problem with the signed JWT containing some information I need in the JOSE header.

Is there a way to get the "X5C:[]" header included in the signed JTW? IS this as easy as setting something like the following

Set JOSE("x5c") = "public key"

Thanks

John

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In .NET Core you have an option to extend a session using a "sliding expiration". This means that if over half the time has passed and the user actively uses their session then the expiry timer gets reset and the user remains logged in. This can lead to the curious situation where you have an active authenticated user with an expired access token being used in data-access requests.

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Question for folks who have connected to an External FHIR repository outside of IRIS. Within the HS.FHIRServer.Interop.HTTPOperation there is not an option to include TLS or an OAuth authentication when connecting to an external Repository. So then how is that piece done if you need to Authenticate against an OAuth Server before you are able to access the data or call the Web Services/REST calls?

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