The @basic_authentication decorator for Django views

decorators.py

import base64
from functools import wraps
from django.conf import settings
from django.http import HttpResponse
from django.utils.encoding import force_str


def basic_authentication(function):
    @wraps(function)
    def wrap(request, *args, **kwargs):
        authorization_passed = False
        if "HTTP_AUTHORIZATION" in request.META:
            auth = request.META["HTTP_AUTHORIZATION"].split()
            if len(auth) == 2:
                if auth[0].lower() == "basic":
                    username, password = force_str(base64.b64decode(auth[1])).split(":")
                    if (
                        username == settings.BASIC_AUTHENTICATION_USERNAME
                        and password == settings.BASIC_AUTHENTICATION_PASSWORD
                    ):
                        authorization_passed = True

        if not authorization_passed:
            response = HttpResponse()
            response.status_code = 401
            response["WWW-Authenticate"] = 'Basic realm="Django Website"'
            return response

        response = function(request, *args, **kwargs)

        return response

    return wrap