It appears that CAS displays the logout request on the logout page when using front channel logout. For auto redirect logout, use "logoutType": "BACK_CHANNEL" in the service definition. Yes, it appears that revoking by jwt token is not yet implemented. Concerning the logout endpoint, I just realized that the cas.logout.follow-service-redirects setting is being used for the CAS protocol with the /logout endpoint rather than the oidc protocol with the /oidcLogout endpoint.
On Friday, November 17, 2023 at 5:30:02 PM UTC+3:30 Udo Einspanier wrote: > Thanks for patience and ongoing support. > > The redirect is not working as I expect. Expected behavior: the browser is > redirected automatically to the URL specified in post_logout_redirect_uri. > Actual behavior: CAS shows this page, where the user has to manually click > on the logout link that was supplied by the client (GO TO ...). > [image: logout.png] > Is automatic redirect supported? If yes, do you know the required > configuration? > > No, the client does not receive an access token of the form "AT-...". We > have specified the access tokens to be encoded as JWT, via > "jwtAccessToken": true in the service definition. So the client sends the > JWT as "token" parameter to /revoke endpoint, which should be according to > the protocol specification. But my assumption is that CAS does not handle > JWT access tokens correctly during revoke. The > *access_tokensnkL58fGsQSM1f* that you mention is because I wanted to > replace the JWTs (id/acces_token) in the log with dummy values, because > they contain the server URL. > > Yes, I am aware that /logout is the endpoint to use for the CAS protocol. > But our client uses OIDC and not CAS protocol. So, it sends the logout > request to "end_session_endpoint" defined in > https://cas.server/cas/oidc/.well-known. Why would we require another > protocol just for the logout? > > On Thursday, November 16, 2023 at 10:18:57 PM UTC+1 Meysam Shirazi wrote: > >> Edit: ? --> : >> prefixes? (*TGT, ST, RT, AT, PT, TST, OC, SART, ODUC, PGT, SATQ, ODT*). >> --> prefixes: (*TGT, ST, RT, AT, PT, TST, OC, SART, ODUC, PGT, SATQ, ODT* >> ). >> >> On Thursday, November 16, 2023 at 11:00:30 PM UTC+3:30 Meysam Shirazi >> wrote: >> >>> As you stated, the logout redirect is working: >>> *2023-11-15T09:49:04,668Z [http-nio-8080-exec-1] DEBUG >>> o.a.c.o.w.c.l.OidcLogoutEndpointController:145 eup.sso.cas {"message": >>> "Final logout redirect URL is >>> [https://cas.server/profile?client_id=test_jan >>> <https://cas.server/profile?client_id=test_jan>]"}* >>> Regarding the issue with revoking the access token, it appears that the >>> token is incorrect. Is there an access token >>> (AT-5-QAnGNlAgqS-HC5e0KuklngTKvA-ugvk5) that was erased following a request >>> for a logout, but the client sent the incorrect token that begins with ( >>> *access_tokensnkL58fGsQSM1f...*) and is therefore not listed in the >>> ticket catalog because it does not begin with any of these ticket prefixes? >>> (*TGT, ST, RT, AT, PT, TST, OC, SART, ODUC, PGT, SATQ, ODT*). >>> /logout endpoint, not /oidc/logout or /oidcLogout, is the default logout >>> url. It is the typical logout in CAS protocol >>> <https://apereo.github.io/cas/6.6.x/protocol/CAS-Protocol-Specification.html#23-logout> >>> >>> endpoint with a service parameter. >>> >>> On Wednesday, November 15, 2023 at 4:44:19 PM UTC+3:30 Udo Einspanier >>> wrote: >>> >>>> Thanks again. Agreed, that actually that looks like the redirect URI >>>> and logout URI must match. >>>> I found that the error in the logs appears not in the request to >>>> /oidcLogout, but to /revoke. Our client revokes the access token it >>>> received during login before sending the logout request, and that is where >>>> the error happens. So probably it is not related to the redirect problem >>>> (but still if you know why it happens would be good to know). >>>> I attached the debug log output for the revoke and succeeding logout >>>> request (replaced id_toke, access_token and host with dummy values). >>>> During >>>> logout I see at least this line which sounds like the >>>> post_logout_redirect_uri is fine: >>>> >>>> 2023-11-15T09:49:04,667Z [http-nio-8080-exec-1] DEBUG >>>> o.a.c.o.w.c.l.OidcLogoutEndpointController:107 eup.sso.cas {"message": >>>> "Requested logout URL [https://cas.server/profile] is authorized for >>>> redirects"} >>>> >>>> Not sure what you mean with "if you send the request to default /logout >>>> url". Shouldn't the OIDC logout request always be sent to the >>>> end_session_endpoint >>>> advertised in .well-known metadata? >>>> >>>> >>>> On Tuesday, November 14, 2023 at 8:06:28 PM UTC+1 Meysam Shirazi wrote: >>>> >>>>> About the logoutUrl I said that based on this parts of code: >>>>> [image: Untitled 2.png] >>>>> The ticket catalog error needs more details, so set cas.log.level to >>>>> debug or trace for more details. >>>>> >>>>> The configuration is *cas.logout.follow-service-redirects*, and the >>>>> default value is false, but I think it's working if you send the request >>>>> to >>>>> default /logout url. >>>>> On Tuesday, November 14, 2023 at 5:25:48 PM UTC+3:30 Udo Einspanier >>>>> wrote: >>>>> >>>>>> I also tried to always redirect to the same URL using redirect-url in >>>>>> the configuration, but this does not work eithr and shows the some >>>>>> logout >>>>>> page as before: >>>>>> >>>>>> cas: >>>>>> logout: >>>>>> followServiceRedirects: false >>>>>> removeDescendantTickets: true >>>>>> redirect-url: "https://..."; >>>>>> >>>>>> >>>>>> >>>>>> On Friday, November 10, 2023 at 8:56:25 AM UTC+1 Meysam Shirazi wrote: >>>>>> >>>>>>> Hi Udo >>>>>>> Change *cas.log.level* to *debug *or make org.apereo.cas.oidc log >>>>>>> level to trace to see what happening. >>>>>>> common reason is post_logout_redirect_uri does not match service, >>>>>>> means post_logout_redirect_uri is not define as logoutUrl or matching >>>>>>> service id in your service definition. >>>>>>> >>>>>>> >>>>>>> On Friday, November 10, 2023 at 10:29:33 AM UTC+3:30 Udo Einspanier >>>>>>> wrote: >>>>>>> >>>>>>>> Hi Meysam, >>>>>>>> >>>>>>>> thanks for the quick reply. Yes, id_token_hint is part of the URL, >>>>>>>> I just left it out for brevity but should have included it. So here is >>>>>>>> the >>>>>>>> URL from CAS OIDC logout page with all parameters: >>>>>>>> >>>>>>>> >>>>>>>> https://.../cas/oidc/oidcLogout?id_token_hint=...&post_logout_redirect_uri=https://... >>>>>>>> >>>>>>>> But still no redirect from CAS to post_logout_redirect_uri. >>>>>>>> >>>>>>>> Any other ideas? >>>>>>>> >>>>>>>> Thanks, >>>>>>>> Udo >>>>>>>> >>>>>>>> On Friday, November 10, 2023 at 3:41:42 AM UTC+1 Meysam Shirazi >>>>>>>> wrote: >>>>>>>> >>>>>>>>> It needs idToken in id_token_hint url parameters) that contains >>>>>>>>> clientId, it can be the same id token that be retrieved in login >>>>>>>>> process. >>>>>>>>> On Thursday, November 9, 2023 at 4:20:04 PM UTC+3:30 Udo >>>>>>>>> Einspanier wrote: >>>>>>>>> >>>>>>>>>> Hi, >>>>>>>>>> >>>>>>>>>> we have CAS 6.6 as OIDC provider. When our client initiates >>>>>>>>>> logout, it goes to >>>>>>>>>> https://.../cas/oidc/oidcLogout?post_logout_redirect_uri=https:/... >>>>>>>>>> >>>>>>>>>> In the YAML configuration we have: >>>>>>>>>> >>>>>>>>>> cas: >>>>>>>>>> logout: >>>>>>>>>> followServiceRedirects: true >>>>>>>>>> removeDescendantTickets: true >>>>>>>>>> >>>>>>>>>> I would expect CAS to redirect to the URL in parameter >>>>>>>>>> post_logout_redirect_uri, but instead >>>>>>>>>> shows a logout page titled "Logout successful" where the user can >>>>>>>>>> click on the logout URL >>>>>>>>>> specified in the logout request. >>>>>>>>>> Is there some additional setting required for OIDC, or are we >>>>>>>>>> missing something to allow automatic >>>>>>>>>> redirect without user interaction? >>>>>>>>>> >>>>>>>>>> Thanks and best regards, >>>>>>>>>> Udo >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> -- - Website: https://apereo.github.io/cas - Gitter Chatroom: https://gitter.im/apereo/cas - List Guidelines: https://goo.gl/1VRrw7 - Contributions: https://goo.gl/mh7qDG --- You received this message because you are subscribed to the Google Groups "CAS Community" group. 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