Django Rest Framework not passing 'X_USERNAME' on request - authenticate method param

Question

I'm trying to set a Custom Authentication class on Django Rest Framework, but all client requests return the same error:

{"detail":"Authentication credentials were not provided."}

So, debugging the Custom class and printing the request.META atributte it has no X_USERNAME key.

CustomAuth class:

 class TecnicoAuthentication(authentication.BaseAuthentication):

 def authenticate(self, request):
    username = request.META.get('X_USERNAME')
    if not username:
        return None
    try:
        user = User.objects.get(username=username)
    except User.DoesNotExist:
        raise exceptions.AuthenticationFailed('No such user')
    return (user,None)

on settings.py file:

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES' : (
            'os_hotlink.auth.TecnicoAuthentication',
    ),
    'DEFAULT_PERMISSION_CLASSES': (
            'rest_framework.permissions.IsAuthenticated',
    ),
    'DEFAULT_RENDERER_CLASSES': (
            'rest_framework.renderers.JSONRenderer',
    )

}

on apache config file:

 WSGIPassAuthorization On

And finally the request method using httpie:

http -a user:pass http://127.0.0.1/

the request method with httpie is incorrect, that is for basic authentication, you have created a custom authentication class, and it is looking for a custom request header called X_username — Tim
– Tim, Commented Feb 6, 2017 at 18:06

Tim · Accepted Answer · 2017-02-06 18:05:03Z

2

It is looking for a custom request header named 'X_USERNAME'.

So you need to define the user in a custom request header called X_USERNAME in your HTTpie request...

I think that if you have the username 'user' then you should try sending it as this:

http 127.0.0.1 X_USERNAME:user

HTTP headers

To set custom headers you can use the Header:Value notation:

$ http example.org  User-Agent:PoopyPants  'Cookie:valued-visitor=yes;whatever=whatever;etc=etc'  \
    X_USERNAME:user  Referer:http://stackoverflow.com/


GET / HTTP/1.1
Accept: */*

Accept-Encoding: gzip, deflate
Cookie: valued-visitor=yes;whatever=whatever;etc=etc
Host: 127.0.0.1
Referer: http://stackoverflow.com/
User-Agent: PoopyPants
X_USERNAME: user

edited Feb 6, 2017 at 18:05

answered Feb 6, 2017 at 17:12

Tim

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9 Comments

Elisson Silva Over a year ago

X_USERNAME is a http header attribute passed through wsgi and captured by drf api

Elisson Silva Over a year ago

But on this case, i cannot capture the attribute for any reason.

Tim Over a year ago

Yes my conclusion would be that it's not passing the header?

Elisson Silva Over a year ago

that is exactly my trouble

Tim Over a year ago

are you on apache?

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