How to achieve authentication with django-auth-ldap?

Question

I have an app running using django. Now i want only users that are authenticated via an openldap server to see "their view" (therefore i only need their uid after successfull authentication)

How can i achieve that?

I guess django-auth-ldap is the way to go, so i tried the whole day to get to know where the authentication actually takes place and how i can get the uid of the user requesting a view.

I used the documentation for the settings.py but i could not find out how to "actually use" it. Maybe someone can point me in the right direction?

settings.py:

import ldap

AUTHENTICATION_BACKENDS = (
    'django_auth_ldap.backend.LDAPBackend',
    'django.contrib.auth.backends.ModelBackend',
)

AUTH_LDAP_SERVER_URI = "ldap://123.60.56.61"

AUTH_LDAP_BIND_DN = ""
AUTH_LDAP_BIND_PASSWORD = ""
AUTH_LDAP_USER_DN_TEMPLATE = "uid=%(user)s,dc=rd,dc=corpintra,dc=net"

(By the way: i already can perform ldap-searche with python-ldap and get results like ldapsearch on the command line, so everything else works just fine...)

What do i need in my views?

Thanks for your help!

Answer 1

Here's a snippet from one of our sites.

# Django Auth Ldap
main_dn = 'dc=____,dc=organisation,dc=com'
groups_dn = 'ou=Groups,'+main_dn
users_dn = 'ou=Users,'+main_dn

AUTHENTICATION_BACKENDS = (
    'django_auth_ldap.backend.LDAPBackend',
    'django.contrib.auth.backends.ModelBackend',
)

AUTH_LDAP_SERVER_URI = "ldap://ldap.organisation.com"
AUTH_LDAP_BIND_DN = 'cn=___,'+main_dn
AUTH_LDAP_BIND_PASSWORD = "__________________"
AUTH_LDAP_USER_SEARCH = LDAPSearch(users_dn, 2, "(uid=%(user)s)")
AUTH_LDAP_USER_ATTR_MAP = {
    "first_name": "givenName",
    "last_name": "sn",
    "email": "mail"
}
AUTH_LDAP_MIRROR_GROUPS = True
AUTH_LDAP_ALWAYS_UPDATE_USER = True
AUTH_LDAP_GROUP_TYPE = PosixGroupType()
AUTH_LDAP_GROUP_SEARCH = LDAPSearch(groups_dn, ldap.SCOPE_SUBTREE, "(objectClass=posixGroup)")

AUTH_LDAP_USER_FLAGS_BY_GROUP = {
    "is_staff":         "cn=admins,"+groups_dn,
    "is_superuser":     "cn=developers,"+groups_dn,
}

EDIT:

Since the question is "What do i need in my views?", The answer is that this config will save the user's uid as the username field on the User model, so in your views, you need

uid = request.user.username

Hopefully this gets you up and running.

Answer 2

Since django-auth-ldap is a normal Django authentication backend, request.user should be set to the authenticated user (assuming you have the standard middleware installed—see the Django docs). With a typical setup, request.user.username will be the uid of the user's DN. If you need more information, you can get it from request.user.ldap_user.

Answer 3

I'm not use django-auth-ldap, i write my own ldap authentification backend's.

#define your backend authentification
AUTHENTICATION_BACKENDS = (
    'netipa.managment.ldapwm.netipaldapdjango.NetIpaLdap',
    #'django.contrib.auth.backends.ModelBackend ',
)

For more information about extend the User model, see https://docs.djangoproject.com/en/1.5/topics/auth/customizing/#specifying-a-custom-user-model

#!/usr/bin/env python
#coding:utf-8
# Author:  peter --<[email protected]>
# Created: 22/04/12 
from django.conf import settings
import ldap
#this is a abstrac class to add some custom fields to the default django User model
#see https://docs.djangoproject.com/en/1.5/topics/auth/customizing/#specifying-a-custom-user-model, for more informacion
from netipa.contrib.accesos.models import LdapUsers as User    
from django.contrib.auth.backends import ModelBackend
#import logging


class NetIpaLdap(object):

    supports_inactive_user = False

    def authenticate(self, username=None, password=None):
#        logging.basicConfig(format='%(asctime)s %(message)s',filename="/tmp/auth.log",level=logging.DEBUG)

        if username is None:
            return None

        try:
            # a variable's define in settings
            ip_server = settings.LDAP_BASES.get('ip')
            userdn = settings.LDAP_BASES.get('users')
            ldap.initialize('ldap://%s' % ip_server)
            lop =  ldap.simple_bind_s(
                                            "uid=%s,%s" % (username, userdn),
                                            password
                                            )
        except ldap.LDAPError, e:
            print e
            return None
        except Exception,e:
            print e
            return None

        try:
            user = User.objects.get(username=username)
        except User.DoesNotExist:
            ldap_at = lop.search(settings.LDAP_BASES.get('users'),
                                                    fil='uid=%s' % username,
                                                    types=1,
                                                    attr=['uidnumber', 'mail'])
            user = User(username=username, password=password, ldap_id=ldap_at[0][-1].get('uidnumber')[0],
                        ldap_mail=ldap_at[0][-1].get('mail')[0])
            user.is_staff = True
            user.is_superuser = True
            user.save()
        return user

    def get_user(self, user_id):
        try:
            return User.objects.get(pk=user_id)
        except User.DoesNotExist:
            return None

Here is my extend User Class Model

from django.db import models
from django.contrib.auth.models import AbstractUser

# Create your models here.

class LdapUsers(AbstractUser):
    ldap_id = models.IntegerField()
    ldap_mail = models.EmailField()