Username read by SAMLServiceProvider.ReceiveSSO is null or empty

SAML for ASP.NET
1

Hi,

We received the following response from the IdP and it seems legit to us (see attached for a larger version):


But when using the following API to process it, the returned userName is either null or empty. We’re expecting to retrieve “mi…@…com” as shown in the response above.
Note that no exception is thrown either.

SAMLServiceProvider.ReceiveSSO(httpApplication.Request, out isInResponseTo, out partnerIdP, out authnContext, out userName, out attributes, out targetUrl);

The version we are using is 2.8.8.0.

Any idea?

2

I can’t see any obvious issues from the screen capture.
Please enable SAML trace and send the generated log file to support@componentspace.com mentioning your forum post.
https://www.componentspace.com/Forums/17/Enabing-SAML-Trace

3

Thanks for your suggestion. Enabling the trace allowed me to verify that the NameId was actually read correctly.

I made a bad diagnosis: it was in fact one of the attributes value that was null, not the username, which makes sense looking at the response.

Nothing wrong the API, sorry for the hassle!

4

No worries. I’m glad the SAML trace help.