LDAP: Use the DN instead of the email address as unique identifier

[ynerant]

Hi,

I am using LDAP as my organization users backend.

My users are able to change their email address. However, since BWDC is using this field to compute new users, when a user is updating their address, a new BW user is created and an invitation is sent.

I see then that the old and the new account have both the same external identifier (which is the LDAP DN). I think that the DN should be used as unique identifier: if a user with the same DN already exists, then we change its email address.

We could also define a LDAP field (such as uid or cn) that defines the unique identifier instead of the mail address.