django1/django/contrib/auth/backends.py

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from django.contrib.auth.models import User, check_password
class ModelBackend:
"""
Authenticate against django.contrib.auth.models.User
"""
# TODO: Model, login attribute name and password attribute name should be
# configurable.
def authenticate(self, username=None, password=None):
try:
user = User.objects.get(username=username)
if user.check_password(password):
return user
except User.DoesNotExist:
return None
def get_user(self, user_id):
try:
return User.objects.get(pk=user_id)
except User.DoesNotExist:
return None