Error handling remote login (Maybe not a bug)

[ronnyek]

Using GSS.Authentication 5.3.3

Describe the bug
On occasion, the /signin-cas endpoint gets hit and throws an exception.

[09:04:12 DBG] 0HN0JI1URRJHK:00000004 The request path /signin-cas does not match a supported file type
[09:04:12 INF] 0HN0JI1URRJHK:00000004 Error from RemoteAuthentication: Missing CAS ticket..
[09:04:13 ERR] 0HN0JI1URRJHK:00000004 An error was encountered while handling the remote login.
System.Exception: An error was encountered while handling the remote login.
 ---> System.Exception: Missing CAS ticket.
   --- End of inner exception stack trace ---
   at Microsoft.AspNetCore.Authentication.RemoteAuthenticationHandler`1.HandleRequestAsync()
   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)

I'm not sure what would cause this, as I believe the cas server is redirecting back to this app when this happens. Ultimately I'd like to find a way to intercept and redirect back to login or somethign when I encounter this error.

The vast majority of time, this library works perfectly and I never run into problems... so again... not exactly sure what I'm doing wrong, or if it could indicate a problem with the cas server or something else.

Any pointers here would be greatly appreciated.

[akunzai]

Hi @ronnyek,

Please make sure the challenge-callback request /signin-cas has the ticket query parameter in Web server's access logs

ex: /signin-cas?state=xxx&ticket=yyy

Perhaps you can also look at the logs in the CAS server to figure out why the ticket parameter is not being added to the query.