David, you are a champ, thank you.
I find it strange that this made the difference, since this line is in
the docs:
"The get_user method takes a user_id -- which could be a username,
database ID or whatever -- and returns a User object."
But, making the change to user_id worked just fine. For eveyone's
reference, here is a working (simple) backend for an open directory
server, using sasl cram_md5, with a self-signed certificate:
from django.contrib.auth.models import
User
import ldap
import
ldap.sasl
class LDAPBackend:
def authenticate(self, username=None,
password=None):
if username and
password:
ldap.set_option(ldap.OPT_X_TLS_REQUIRE_CERT,
ldap.OPT_X_TLS_NEVER)
directory = 'ldaps://MYSERVERURL'
base_dn =
'MYBASEDN'
scope =
ldap.SCOPE_SUBTREE
con = ldap.initialize
(directory)
auth_tokens = ldap.sasl.cram_md5(username, password)
try:
con.sasl_interactive_bind_s("", auth_tokens)
except ldap.LDAPError:
return
None
con.unbind()
try:
user = User.objects.get
(username=username)
print
user
return
user
except
User.DoesNotExist:
return
None
def get_user(self,
user_id):
try:
user = User.objects.get
(id=user_id)
return user
except User.DoesNotExist:
return None
Many thanks again to David and Peter.
Brenton.
On Aug 12, 12:31 pm, David De La Harpe Golden
<david.delaharpe.gol...@ichec.ie> wrote:
> stupidgeek wrote:
> > def get_user(self, username):
> > try:
> > user = User.objects.get(username=username)
> > print user
> > return user
> > except User.DoesNotExist:
> > return None
>
> Note part of the auth backend protocol AFAICS involves calling
> get_user() itself* (not just authenticate()), and it is expected to take
> a user_id arg, not username, i.e. you very likely need it to be:
>
> def get_user(self, user_id):
> try:
> return User.objects.get(pk=user_id)
> except User.DoesNotExist:
> return None
>
> * django/contrib/auth/__init__.py
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