Some customers have the problem that the NameUserPrincipal we query over GetUserNameEx does not match the real email address of the user. The display name does not always give the desired result for the name, either.
Optionally, Kleopatra should query AD for the full name (or first name and surname) and the email address. dirmngr can be used to query AD.
Thinking about this, the best way to avoid AD code in Kleopatra would probably be to just create a QProcess that executes Powershell or WMIC to query the AD.
Here are more examples:
https://stackoverflow.com/questions/10184052/get-a-users-email-address-from-the-username-via-powershell-and-wmi
To query the AD I used the GPGME function gpgme_op_assuan_transact_ext with an query string like this:
ad_query --subst --attr=dn,userAccountControl (&(objectcategory=person)(objectclass=user) (|(userPrincipalName={{email}}) (mail={{email}})))Of course {{email}} must be replaced with the mail address queried, this might probably also be the UserPrincipalName.