New user validation

Brad Bishop bradleyb at
Tue Feb 13 16:28:00 AEDT 2018

Consider a DBus service for a moment that provides a user and group
management database (in the form of DBus objects).  Things like
usernames, group membership, etc.

Now consider an application using that service to create a new user.

Finally, consider a number of _other_ user facing applications
that need to abort the user creation process if some local validation
criteria fails.

Does anyone have any ideas on how a framework for doing such
validation might look?

For context:

(Thank you Richard for pulling this together!)

thx - brad

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