Re: [webmin-l] LDAP User's and Groups Module Duplicate Alias Issue

[Jamie C. <jca...@we...>]

On Sun, 2005-10-30 at 21:19, Murray Trainer wrote:
> On Mon, 2005-10-31 at 04:12, Jamie Cameron wrote:
> > On Sat, 2005-10-29 at 23:28, Murray Trainer wrote:
> > > On Sun, 2005-10-30 at 03:18, Jamie Cameron wrote:
> > > > On Sat, 2005-10-29 at 08:46, Craig White wrote:
> > > > > On Sat, 2005-10-29 at 16:34 +0800, Murray Trainer wrote:
> > > > > > Hi Craig,
> > > > > > 
> > > > > > I am talking about e-mail aliases which are entered in the Mail Aliases
> > > > > > field.  That stores the entry in the user's alias LDAP attribute.
> > > > > > 
> > > > > > Murray
> > > > > > 
> > > > > > 
> > > > > > > On Fri, 2005-10-28 at 16:10 +0800, Murray Trainer wrote:
> > > > > > > > Hi Jamie,
> > > > > > > > 
> > > > > > > > I noticed that the module allows me to give two different users the same
> > > > > > > > alias.  This isn't the behaviour desired in my case.  Is there any way
> > > > > > > > of stopping this by checking if the alias already exists?  I suppose
> > > > > > > > that would involve an LDAP search for the requested new alias of all
> > > > > > > > users under that domain and accepting it if it didn't already exist.  
> > > > > > > ----
> > > > > > > Alias? email alias? attribute? dn?
> > > > > > > 
> > > > > > > Clarify please
> > > > > -----
> > > > > In that event - an attribute of an entry, openldap wouldn't catch that
> > > > > and I wouldn't know about other ldap programs. That would be an
> > > > > interesting escalation of the power of the LDAP Users and Groups module.
> > > > > Considering that some of the attributes are necessarily duplicated
> > > > > within the DSA and some are necessarily unique, an option to check for
> > > > > uniqueness would have to be very configurable.
> > > > 
> > > > That is quite a good idea for a feature actually .. in the next release,
> > > > I will add a Module Config option to specify custom fields that are not
> > > > allowed to contain duplicates with other users. Also, the mail alias
> > > > field will automatically have this enforced ..
> > > 
> > > I'm  wondering if the mail alias being unique should be optional on it's
> > > intended use.  In my setup I have postfix configured to use an
> > > ldap-aliases file to search my LDAP directory for recipients.  The
> > > search looks for matching mail and alias attributes and returns the
> > > matching users uid names which correspond with their Cyrus mailbox names
> > > so the mail can be delivered.  I just tried adding the same alias e-mail
> > > address attribute to two users and an e-mail to the alias is delivered
> > > to both of them.  This is probably what should happen in this case and
> > > is often pretty useful - ie. basic mailing list functionality.  Maybe we
> > > need separate Personal Mail Aliases and Group Mail Alias entry fields -
> > > the former enforcing uniqueness and the latter not. The group alias
> > > would normally only be used when we specifically have a need to direct
> > > e-mail to a group of users via a common address.
> > 
> > Fair enough .. I will make duplicate checking for the alias manual.
> > 
> >  - Jamie
> 
> How about keeping the existing mail aliases field and just adding a
> tickbox to allow/disallow duplicates (default ticked or unticked
> configurable in the module's config page).

That is exactly what I did :-)

 - Jamie