ContextCheckInterceptConfiguration check for null attribute

[Rod Widdowson]

> Is there a simple way to intercept when an attribute is undefined / null without resorting to  writing a script.

I'd let other comment more, but it seems to me that the DynamicAttributePredicate[1] allows you find out if attributes are present.  You'd inject (at p:attributeFunctionMap​="") a map with the key[s] being the attributeId and all value being Function which returns '*'.

[1] https://build.shibboleth.net/nexus/service/local/repositories/site/content/java-identity-provider/4.0.1/apidocs/net/shibboleth/idp/profile/logic/DynamicAttributePredicate.html

But there may be better ways

R