authorization with ptloader and authentication by sasl

[Thomas Vogt]

Hi all

With ptload we've a nice tool to connect to an ldap backend. And with  
ldap_filter in imapd.conf the user has the ability to do nice  
things.This works very well. But as I understand this is only the  
authorization mechanism. I always have problems with the  
authentication (sasl).

An example. Lets say we have this user information in the ldap backend.
# usermail04, people, freeweb, freeweb, ch
dn: uid=usermail04, ou=people,ou=freeweb,dc=freeweb,dc=ch
uid: usermail04
sn: none
uidNumber: -1
gidNumber: -1
homeDirectory: /nonexistent
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: inetOrgPerson
objectClass: posixAccount
objectClass: xMail
cn: Testuser
userPassword:: e01EaEgMEUs4gaUmRZSU9xSll0Y1FnPT0K
maildrop: usermail04 at mail04.freeweb.ch
alias: smail04 at freeweb.ch
alias: usermail04 at freeweb.ch

I can login without problem if I use the uid as username and the  
correct password (auth=pts). But is it not possible to use the alias  
value too with the same password for the login procedure?
My problem is, that I've an application which is generating random  
uid as username. Only the alias value is human readable. Which mean  
I'll give the user the ability to use his alias name for the pop3/ 
imap authentication. Of course it should work with the uid too. Is  
there no configuration magic which can do that?


A few months ago Igor Brezac send me an example patch. But I never  
figured out how it works.

Regards,
Thomas
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