Bugzilla – Full Text Bug Listing
|Summary:||update to IdP metadata template|
|Product:||GridShib||Reporter:||Tim Freeman <firstname.lastname@example.org>|
|Component:||Shibboleth IdP Plugin||Assignee:||Tom Scavo <email@example.com>|
|Severity:||normal||CC:||firstname.lastname@example.org, email@example.com, firstname.lastname@example.org|
The sample metadata template in the NameMapper plugin: gridshib/idp/data/gridshib-idp-metadata-template.xml .. has this comment: Zero or more saml:Attribute elements are included here. (Since these elements are currently not used by grid service providers, they are more for documentation purposes than anything else.) Now that the GT module is aware of Attribute elements, this parenthetical remark should be updated or deleted. I'll post a link here to the relevant documentation once it is online.
I've read the documentation: http://gridshib.globus.org/docs/admin-index.html#metadata-attr-optimization I agree this is a useful optimization provided the following are true: 1. It is OFF by default (which evidently it is). 2. If it is ON and there are no Attribute elements in the IdP metadata, the optimization is short-circuited (i.e., the query proceeds). I recommend the comment be changed as follows: Zero or more saml:Attribute elements are included here. A Grid service provider may choose not to query the AA based on the attributes in this list, therefore this list MUST be comprehensive. Since no method of dynamic metadata exchange currently exists, it is recommended that IdPs omit this list entirely. At least two things are needed before we can recommend otherwise: - A tool that produces IdP metadata from the underlying IdP configuration - A simple method of publishing IdP metadata
OK, makes sense. I just verified that your point #2 is in the code, the optimization treats 0 attributes as a signal to NOT disable the query. Your new comment text looks good to me, thanks.
The comment in the IdP metadata template has been modified in my sandbox.