Note: This documentation is still a little rough...
The Shib Shim filter passes the Shibboleth attributes to the application in two ways:
The attributes consist of any Shibboleth attributes mapped in the properties file, plus a few special attributes listed below.
The name of the Shibboleth Shim application.
The Shibboleth Shib XML document containing the attributes.
The date and time of the user's authentication.
The current date and time.
The session ID identifying the session in this application. This will be an arbitrary handle, generated by the Shibboleth Shim server.
The date and time that Shibboleth issued the assertion.
The REFERRER value for the Shibboleth Identity Provider.
The date and time page was last loaded in this session.