django-authlib 0.3.3

Authentication utils for Django

authlib is a collection of authentication utilities for implementing passwordless authentication. This is achieved by either sending cryptographically signed links by email, or by fetching the email address from third party providers such as Google, Facebook and Twitter. After all, what’s the point in additionally requiring a password for authentication when the password can be easily resetted on most websites when an attacker has access to the email address?

Usage

• Install django-authlib using pip into your virtualenv.

• Add authlib.backends.EmailBackend to AUTHENTICATION_BAcKENDS.

• Adding authlib to INSTALLED_APPS is optional and only useful if you want to use the bundled translation files. There are no required database tables or anything of the sort.

• Have a user model which has a email field named email as username. For convenience a base user model and manager are available in the authlib.base module, BaseUser and BaseUserManager. The BaseUserManager is automatically available as objects when you extend the BaseUser.

• Use the bundled views or write your own. The bundled views give feedback using django.contrib.messages, so you may want to check that those messages are visible to the user.

The Google, Facebook and Twitter OAuth clients require the following settings:

• GOOGLE_CLIENT_ID

• GOOGLE_CLIENT_SECRET

• FACEBOOK_CLIENT_ID

• FACEBOOK_CLIENT_SECRET

• TWITTER_CLIENT_ID

• TWITTER_CLIENT_SECRET

Note that you have to configure the Twitter app to allow email access, this is not enabled by default.

Use of bundled views

The following URL patterns are an example for using the bundled views. For now you’ll have to dig into the code (it’s not much, at the time of writing django-authlib’s Python code is less than 500 lines):

from django.conf.urls import url
from authlib import views
from authlib.facebook import FacebookOAuth2Client
from authlib.google import GoogleOAuth2Client
lrom authlib.twitter import TwitterOAuthClient

urlpatterns = [
    url(
        r'^login/$',
        views.login,
        name='login',
    ),
    url(r'^oauth/facebook/$',
        views.oauth2,
        {
            'client_class': FacebookOAuth2Client,
        },
        name='accounts_oauth_facebook',
    ),
    url(r'^oauth/google/$',
        views.oauth2,
        {
            'client_class': GoogleOAuth2Client,
        },
        name='accounts_oauth_google',
    ),
    url(r'^oauth/twitter/$',
        views.oauth2,
        {
            'client_class': TwitterOAuthClient,
        },
        name='accounts_oauth_twitter',
    ),
    url(
        r'^email/$',
        views.email_registration,
        name='email_registration',
    ),
    url(
        r'^email/(?P<code>[^/]+)/$',
        views.email_registration,
        name='email_registration_confirm',
    ),
    url(
        r'^logout/$',
        views.logout,
        name='logout',
    ),
]