Attribute Map and Filtering testing.
- You need an IPD and one SP for this test
How to test
Mapping and filtering controls what attributes are included in the SAML assertion and what their name is. This is most easily seen in the MELLON environment variables.
If you haven't already, configure your SP to manage /cgi-bin and create printenv.pl like we do in the info plugin test
# systemctl restart httpd
Configure mapping and filtering
Log into the idp as the admin user, https://idp.example.com/idp/
Select Administration -> Identity Providers -> saml2 -> Configure
Scroll to the bottom of the screen to see the configuration for default attribute mapping and default allowed attributes.
By default every attribute is passed as-is and every attribute is allowed.
Change fullname to namefull
The first test is to simply rename an attribute. Under default attribute mapping click on the + to add a new rule and add:
Then click Save at the bottom of the form.
Now go to https://sp.example.com/cgi-bin/printenv.pl We're already logged in as admin. Look for:
You'll notice that MELLON_fullname is included as well (plus a few other MELLON variables, that's ok).
Filter out fullname
Ok, so if we're mapping we probably don't want the old name included so let's drop it.
Right now filtering is a white-list defaulting to everything. Since we're dropping fullname we will need to specify everything we want to see.
Go back to the IDP page, Administration -> Identity Providers -> saml2 -> Configure and scroll down to the very bottom. W're going to change default allowed attributes
Start by changing * to namefull
Then for each of these attributes click + to add it:
Now select admin -> Logout
The ttest user has a lot more interesting attributes than the admin user.
Go to the SP and log in as ttest, https://sp.example.com/cgi-bin/printenv.pl
You should see the only MELLON variables for IDP, NAME_ID, namefull, givenname and surname.
Let's add the rest now. Go back to https://idp.example.com/idp and log out as ttest and log back in as admin.
Now go back to Administration -> Identity Providers -> saml2 -> Configure
Scroll back to the bottom and add a few more default allowed attributes (by clicking on the +):
street state email
Select in the upper right admin-> Logout
Go back to https://sp.example.com/cgi-bin/printenv.pl and authenticate as ttest
You should now see the full list of MELLON variables (IDP, NAME, email, givenname, namefull, sate, street, surname) again with the exception of fullname which we implicitly excluded (not in the white list).
All the test steps should end with the specified results.