This package lets you authenticate via tastypie using cookies.

This is the ideal way to authenticate for example in a Backbone.js client application.

__version__ = "0.4"

Installation

# grab the code from github
pip install -e git://github.com/tudorprodan/tastypie_user_session.git#egg=tastypie-user-session
# or PyPI
pip install tastypie-user-session

yourapp/api.py :

from tastypie_user_session import FacebookAuthUserSessionResource

v1_api = Api(api_name="v1")
v1_api.register(FacebookAuthUserSessionResource())

settings.py :

INSTALLED_APPS += ("tastypie_user_session", )

AUTHENTICATION_BACKENDS += ("tastypie_user_session.auth.FacebookAuthBackend", )

TASTYPIE_USER_RESOURCE_SETTINGS = {
    "facebook_app_id": "<your_app_id>",
    "facebook_app_secret": "<your_app_secret>",
}

Usage

• GET /api/v1/user_session/ - see if you have an active session
• PUT /api/v1/user_session/<session_key>/ - refresh your session, empty request body
• DELETE /api/v1/user_session/<session_key>/- delete the session (logout)
• POST /api/v1/user_session/ - create a new session (login) with a new or existing user for the app
  • using the Facebook JS SDK cookie, request body: { "facebook_use_cookie": true }
  • via a Facebook oauth code, request body: { "facebook_code": "<users_fb_oauth_code>" }
  • via a Facebook auth token, request body: { "facebook_token": "<users_fb_token>" }

As long as the client keeps using the same cookiejar (the way browsers do), he is now authenticated by django.contrib.auth's middleware automatically.

Also provided

DjangoAuthUserSessionResource

Allows users to authenticate with any backend by POSTing credentials.
User creation is not supported, because I have not implemented it, but could be added.

UserSessionResource

This is the base class, which is meant to be extended by you to achieve the behavior you want.

Both FacebookAuthUserSessionResource and DjangoAuthUserSessionResource override a single method from this class:

def find_or_create_user_for_new_session(self, bundle, request, **kwargs)

Customization

Using an existing Facebook ID field on UserProfile

Suppose you already have a Facebook ID associated with your users, e.g. you used it for something else:

class UserProfile(models.Model):
    ...
    fb_id = models.CharField(max_length=255)
    ...

tastypie_user_session.FacebookAuthUserSessionResource can use it:

# settings.py
TASTYPIE_USER_RESOURCE_SETTINGS["user_profile_facebook_id_field"] = "fb_id"

Now, instead of using it's own FacebookAuthUser model, it will use UserProfile.fb_id to store and look up user's Facebook ID.

Using your own UserResource

By default, we use tastypie_user_session.resources.UserResource, but you can use your own if you want something custom.
Just add the user resource path to TASTYPIE_USER_RESOURCE_SETTINGS.

TASTYPIE_USER_RESOURCE_SETTINGS["user_resource_path"] = "yourapp.resources.user.UserResource"

Using Facebook's Oauth dialog

As described here, you can use Facebook's Oauth dialog to get a user authorization code, which can then be exchanged for an access token. In order to do the exchange, we need the redirect URI used by the client (FB API requirement).

# settings.py
TASTYPIE_USER_RESOURCE_SETTINGS["facebook_code_redirect_uri"] = "http://www.mysite.com/facebook_oauth_landing_page.html"

Notes

I'm already using FacebookAuthUserSessionResource successfully on two projects.

You can very easily extend UserSessionResource to suit your needs and authenticate in any way you want. (e.g. LDAP)