1. Is there any way of space trimming the username prior to
authentication? Not at the authentication handler level, but at the CAS
level.
Yes, the PrincipalNameTransformer [1] component exists for this purpose.
Although none ships with CAS that provides trimming capability, it
should be straightforward to develop. You might review the source for
PrefixSuffixPrincipalNameTransformer [2] for inspiration.
2. How about making it lower case? Same thing, not at the auth handler
level.
You could do it with a trivial implementation of
PrefixSuffixPrincipalNameTransformer, but I'd recommend simply assigning
your CAS principal based on what your CredentialToPrincipalResolver
returns. That's really what you want: to use the canonical principal
name from your system of record in all CAS-enabled applications.
M
[1]
https://github.com/Jasig/cas/blob/master/cas-server-core/src/main/java/org/jasig/cas/authentication/handler/PrincipalNameTransformer.java
[2]
https://github.com/Jasig/cas/blob/master/cas-server-core/src/main/java/org/jasig/cas/authentication/handler/PrefixSuffixPrincipalNameTransformer.java
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