Wow, thank you so much for such a complete explanation. I appreciate the 
effort. I am out for the next day or so but will try and implement this as soon 
as I can.Thank you again and I will let you know the results.
      From: Alexander Bokovoy <aboko...@redhat.com>
 To: Justean <juste...@yahoo.com> 
Cc: "freeipa-users@redhat.com" <freeipa-users@redhat.com> 
 Sent: Wednesday, August 5, 2015 12:40 PM
 Subject: Re: [Freeipa-users] Change default email format
   
On Wed, 05 Aug 2015, Alexander Bokovoy wrote:
>On Mon, 03 Aug 2015, Justean wrote:
>>Good morning, I was wondering if there is a way to change the way
>>freeipa builds a user's email address by default. Currently it takes
>>the username and appends the domain name but I would like it to take
>>the form firstname.lastn...@domainname.com
>It is not possible to redefine email's format via configuration so you
>need to write some code. Luckily, you can amend existing code without
>touching it.
>
>Below is an example:
>-----------------------------------------------------------------------
>/usr/lib/python2.7/site-packages/ipalib/plugins/user-ext-mail-format.py
>-----------------------------------------------------------------------
>from ipalib.plugins.user import user_add
>
>def override_default_mail_cb(self, ldap, dn, entry_attrs, attrs_list, *keys, 
>**options):
>  if not 'mail' in entry_attrs:
>        name = {'givenname': entry_attrs.get('givenname').lower(),
>                'sn': entry_attrs.get('sn').lower()}
>        mail = "{givenname}.{sn}".format(**name)
>        entry_attrs['mail'] = self.obj.normalize_and_validate_email(mail)
>  return dn
>
>user_add.register_pre_callback(override_default_mail_cb, first=True)
>-----------------------------------------------------------------------
>
>What this Python code does? It adds a callback to user-add method in IPA
>that is run before other callbacks (first=True). The callback is then
>checks if mail attribute was already specified by the administrator
>when calling 'ipa user-add' (Web UI calls this for you). If not, it
>derives mail format from lower-cased versions of first and last names of
>the user (known as 'givenname' and 'sn' attributes in LDAP
>correspondingly). It then sets mail attribute to a full email format via
>self.obj.normalize_and_validate_email() function which will pick up the
>default DNS domain value and construct correct email.
>
>You need to maintain this plugin extension on all IPA masters used for
>creating users. Best way to do that is by packaging the plugin in an RPM
>and installing it on IPA masters.
>
>You also need to restart httpd service on IPA master to apply the
>plugin.
>
>It is used like this:
>
># systemctl restart httpd
># ipa user-add some.user --first Some --last User 
>----------------------
>Added user "some.user"
>----------------------
> User login: some.user
> First name: Some
> Last name: User
> Full name: Some User
> Display name: Some User
> Initials: SU
> Home directory: /home/some.user
> GECOS: Some User
> Login shell: /bin/sh
> Kerberos principal: some.u...@example.com
> Email address: some.u...@example.com
> UID: 1634400022
> GID: 1634400022
> Password: False
> Member of groups: ipausers
> Kerberos keys available: False
Actually, I realized because I gave the same user login as
'FirstName.LastName', it might be less apparent that the code works.
Let's try with another user:

# ipa user-add foo.bar --first Some --last User 
--------------------
Added user "foo.bar"
--------------------
  User login: foo.bar
  First name: Some
  Last name: User
  Full name: Some User
  Display name: Some User
  Initials: SU
  Home directory: /home/foo.bar
  GECOS: Some User
  Login shell: /bin/sh
  Kerberos principal: foo....@example.com
  Email address: some.u...@example.com
  UID: 1634400023
  GID: 1634400023


  Password: False
  Member of groups: ipausers
  Kerberos keys available: False


-- 
/ Alexander Bokovoy


  
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