LDAP default value variable interpolation

[Leon Kyneur]

I'm wondering if there is a way I can dynamically generate an LDAP default
value by using variables.

I have a configuration that works something like this on my front end proxy:

pass_attrs = mail=user,\
  =nopassword=y,\
  =proxy=y,\
  =host=mail.%d

The above works perfectly well even though it seems a bit hack.

I want to fetch the host field from LDAP and default it to "mail.%d" if the
attribute isn't populated for the user.

I have tried the following :

pass_attrs = mail=user,\
  =nopassword=y,\
  =proxy=y,\
  =host=%{ldap:mailHost:mail.%d}

however the interpolation doesn't occur on the default. Just wondering if
there is a way to achieve this?

thanks