authentication.py

import ldap
from django.conf import settings
from django.contrib.auth.models import User
from ldapper.ldap_settings import LDAP_SERVER as ldsettings


class LdapAdAuthenticationBackend(object):

    def authenticate(self, username=None, password=None):
        try:
            ldap.set_option(ldap.OPT_X_TLS_REQUIRE_CERT, ldap.OPT_X_TLS_NEVER)
            user_ldap = ldap.initialize(ldsettings[0])
            user_ldap.protocol_version = 3
            user_ldap.set_option(ldap.OPT_REFERRALS, 0)
            user = '%s@pdc-domain.lan' % username
            user_ldap.simple_bind_s(user, password)
        except:
            return None

        user, created = User.objects.get_or_create(username=username)
        created.is_staff = True
        created.set_password(password)
        created.save()

        return user

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

Error_dump.txt

Environment:


Request Method: POST
Request URL: http://localhost:8000/ldapper/login/

Django Version: 1.9.5
Python Version: 2.7.11
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'ldapper',
 'links']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback:

File "/home/username/.local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  149.                     response = self.process_exception_by_middleware(e, request)

File "/home/username/.local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  147.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/home/username/PycharmProjects/internal/src/ldapper/views.py" in login_user
  18.         user = authenticate(username=username, password=password)

Exception Type: NameError at /ldapper/login/
Exception Value: global name 'authenticate' is not defined

settings.py

AUTHENTICATION_BACKENDS = (
    'internal.authentication.LdapAdAuthenticationBackend',
    'django.contrib.auth.backends.ModelBackend',
)

views.py

from django.views.generic.edit import FormView
from ldap_settings import LDAP_SERVER as ldsettings
from django.contrib.auth import login, logout
from django.shortcuts import render, redirect, HttpResponse
from ad_ldap.ad_ldap import Domain
from ad_ldap.errors import *

from .forms import ChangePasswordForm


def login_user(request):
    if request.POST:
        username = request.POST.get('username')
        password = request.POST.get('password')

        user = authenticate(username=username, password=password)

        if user is not None:
            login(request, user)
        else:
            return render(request, 'ldapper/auth.html', {'state': 'Invalid Login/Password'})
    else:
        return render(request, 'ldapper/auth.html')