Added initial fortnox api client.

[tranquillity.git] / tranquillity / auth_backend.py

from django.contrib.auth import get_user_model
from django.contrib.auth.models import User
from django.contrib.auth.backends import ModelBackend
import requests

class EmailBackend(ModelBackend):
    def fetch_fortnox(self):
        """ Fetch all active customers from Fortnox API. Return as dict keyed on email."""
        res = None
        customers = {}
        headers = {"Access-Token":FORTNOX_Access_Token,
           "Client-Secret":FORTNOX_Client_Secret,
           "Content-Type":"application/json",
           "Accept":"application/json" }

        res = requests.get("https://api.fortnox.se/3/customers?filter=active", headers=headers)
        for customer in res.json()['Customers']:
            customers[customer['Email']] = customer
        return customers

    def authenticate(self, username=None, password=None, **kwargs):
        UserModel = get_user_model()
        try:
            user = UserModel.objects.get(email=username)
        except UserModel.DoesNotExist:
            customers = self.fetch_fortnox()
            if username in customers:
                if ' ' in customers[username]['Name']:
                    (fname,lname) = customers[username]['Name'].split(' ',1)
                    user = User.objects.create_user(username=username,
                                     email=username,
                                     first_name=fname,
                                     last_name=lname)
                    return user
                else:
                    fname = customers[username]['Name']
                    user = User.objects.create_user(username=username,
                                 email=username,
                                 first_name=fname)
                    return user
            return None
        else:
            if user.check_password(password):
                return user
        return None