I agree, this modification is one that would ideally be made on the LMS side. This is a fairly common setup for applications that use both CAS and local logins.
cheers, Steve On 26/01/2012, at 4:11 AM, Andrew Petro wrote: > Hi Bryan, > > I don't see why the gateway feature would be required for the use case you > describe. If Canvas is to allow both CAS and a local-to-Canvas-account > login, I'd have expected this to be accomplished by customizing the *Canvas* > not-yet-authenticated experience to offer links for both CAS and > local-to-Canvas login. > > Cf. e.g. Yale's Sakai, which supports both CAS and local-to-Sakai login: > > https://classesv2.yale.edu/portal/ > > Note the Yale CAS Login and the Non-Yale Login links at upper right. No > gateway feature usage required. > > Gateway comes into the picture if, beyond supporting both CAS and non-CAS > login, Canvas is looking to detect an already established CAS single sign-on > session and skip presenting the invitation to login, jumping straight to the > logged in experience when possible thanks to an already-established CAS > single sign-on session. I'd suggest that's possibly a better experience > worth getting to, but not a nuance to address before eating basic CAS and > non-CAS login working. > > There's no issue with the gateway feature in the Yale CAS client that I know > of. That client library works just fine until/unless you need features it > doesn't support. > > Hope the conference call goes well. > > Kind regards, > > Andrew > > > > On Jan 25, 2012, at 11:36 AM, Bryan E. Wooten wrote: > >> Hi all, >> >> We have deployed Canvas as our LMS and it is CASified. They have a >> requirement allow both CAS and a “guest” login. >> >> I have been asked to put a link on the CAS login page to the Canvas guest >> login page. Through the magic of JSF / Javascript this link would only >> appear if the service parameter points to the Canvas URL. >> >> I don’t really like this idea and suggested they use the gateway feature >> that grants access to some kind of Canvas landing page with the option to >> login via CAS or their guest login. We have other apps that do this and it >> works quite well. >> >> Anyway they are having trouble making gateway work. I am not sure of the >> exact issue. But I did see an exception when I went to their test server and >> noted that they are using the Yale client. I realized this is no longer >> supported. Also Canvas seems to be written in Grails. >> >> So my question is this: Are there any known issues with the gateway feature >> and the Yale client and / or frameworks like Grails? We have a conference >> call set for later today with the Canvas developers. >> >> Thanks for any help or advice, >> Bryan >> -- >> You are currently subscribed to [email protected] as: >> [email protected] >> To unsubscribe, change settings or access archives, see >> http://www.ja-sig.org/wiki/display/JSG/cas-user > > > -- > You are currently subscribed to [email protected] as: > [email protected] > To unsubscribe, change settings or access archives, see > http://www.ja-sig.org/wiki/display/JSG/cas-user > -- You are currently subscribed to [email protected] as: [email protected] To unsubscribe, change settings or access archives, see http://www.ja-sig.org/wiki/display/JSG/cas-user
