from django.contrib.auth.models import AnonymousUser
from rest_framework import authentication
from rest_framework.authentication import TokenAuthentication


class AnonymousAuthentication(authentication.BaseAuthentication):

    def authenticate(self, request):
        """
        Authenticate the request for anyone!
        """
        return AnonymousUser(), None


class AnonymousOrAuthenticatedAuthentication(authentication.BaseAuthentication):

    def authenticate(self, request):
        """
        Authenticate the request for anyone or if a valid token is provided, a user.
        """
        try:
            return TokenAuthentication.authenticate(TokenAuthentication(), request)
        except:
            return AnonymousUser(), None