[Django]-Django: Rest Framework authenticate header

Just in case anyone else comes across this error. This can also happen if you are running Django on Apache using mod_wsgi because the authorization header is stripped out by mod_wsgi. You’ll need to add the following to your VirtualHost configuration:

WSGIPassAuthorization On

I was having the same trouble with my Token Authentication

This fixed the problem to me

settings.py

REST_FRAMEWORK = {
   'DEFAULT_AUTHENTICATION_CLASSES': (
       'rest_framework.authentication.TokenAuthentication',
   ),
   'DEFAULT_PERMISSION_CLASSES': (
        'rest_framework.permissions.IsAdminUser'
   ),
   'PAGINATE_BY': 10,
}

In my case this works:
(Django REST Framework v3)

settings.py

REST_FRAMEWORK = {
   'DEFAULT_AUTHENTICATION_CLASSES': (
       'rest_framework.authentication.TokenAuthentication',
       'rest_framework.authentication.SessionAuthentication',
   ),
   'DEFAULT_PERMISSION_CLASSES': (
        'rest_framework.permissions.IsAuthenticated',
   ),
}

views.py

class Test(APIView):
    def get(self, request, format=None):   
        return Response({'Result': 'OK'})

urls.py

router.add_api_view('test', url(r'^test/', views.Test.as_view(),name='test'))

Don’t forget to send the token information in the header:

 Key: Authorization  
 Value: Token 76efd80cd6849ad7d35e04f1cc1eea35bdc20294

To generate tokens you can use the following (somewhere in your code):

from rest_framework.authtoken.models import Token            
user = User.objects.get(username='<username>')
token = Token.objects.create(user=user)
print(token.key)

For those who are on AWS elastic beanstalk and you are kind of stuck with apache and unless you have

WSGIPassAuthorization On

As mentioned by @Fiver your headers get stripped

Instead of manually fixing this and making a new image, I made a script that checks if the last line of the conf file is WSGIPassAuthorization On and if it is not we update it and restart the server

In my Django app I have a config folder with my sh file

configs/server/update-apache.sh

if [[ $(tac /etc/httpd/conf/httpd.conf | egrep -m 1 .) == $(echo 'WSGIPassAuthorization On') ]];
  then
     echo "Httpd.conf has already been updated"
  else
     echo "Updating Httpd.conf.."
     echo 'WSGIPassAuthorization On' >> /etc/httpd/conf/httpd.conf
     service httpd restart
fi

Make it excecutable before I commit it to git

chmod +x configs/server/update-apache.sh

Then in my python.config file I add the command at the end

.ebextensions/python.config

...
...
container_commands:
    01_migrate:
        command: "python manage.py migrate"
        leader_only: true
    02_collectstatic:
        command: "python manage.py collectstatic --noinput"
    03_change_perm:
        command: "chown -R wsgi:root static"
    03_update_apache:
        command: "sh configs/server/update-apache.sh"

Now any new machine that starts up will have a check done to see if the server is updated and does so if need be

I got bitten by a related issue, sharing the solution in case it’s useful to anyone. Our test servers require HTTP Basic Auth for the whole site, i.e. users must log in via an http auth dialog before doing their personal login. This is a simple credential – just enough to keep the googlebot away. API requests to those servers handle this by embedding those credentials in the request, i.e.

url = "https://username:somepass@domain.com

The problem is that when you do that, the embedded credential is translated invisibly into an http Authorization header. That header keyword is thus already occupied, making it impossible to also send an Authentication header for the token, and the DRF API returns a confusing "No credential provided" error.

The solution was to use DRF’s Custom Authentication docs and create a new TokenAuthentication class subclassing DRF’s. In it I defined two methods: def get_custom_authorization_header() and def authenticate(), where authenticate() calls get_custom_authorization_header(), which overrides the auth = line:

auth = request.headers.get("X-Ourcustom-Authorization", b"")

Calling code to test servers then replaces

headers = {"Authorization": f"Token {your_token}"}

with

headers = {"X-OurCustom-Authorization": f"Token {token}"}