from web.models import User

class EmailBackend:
  """
  Authenticate with e-mail.
  """

  supports_object_permissions = False
  supports_anonymous_user = False
  supports_inactive_user = False

  def authenticate(self, username=None, password=None):
    try: user = User.objects.get(email=username)
    except User.DoesNotExist: return None
    if user.check_password(password): return user
    return None

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