This is a brief tutorial on how to setup a new django-project with openid authentication support.

django-authopenid basics

We will use django-authopenid for this project. It provides support for openid-2.x which is not available in other projects like django-openid.

In a login process, after a successful authentication via OpenID, django-authopenid requires the user to connect the OpenID-URL with a local user (existing or newly created). Creating a new user is as simple as providing an username and email; no activation is required by default. This is the (simplified) authentication process of django-authopenid:

Django-authopenid associates the users and OpenID-URL's in a database-table called "user_associations", which is available via the admin interface. The package provides quite some functionality like password reset, password change, ... and provides this URL structure by default:

  /account/ .................... main page of account for user  
  /account/signin/ ............. go to signin page
  /account/signout/ ............ signout url
  /account/signin/complete/ .... register openid after signin 
  /account/signup/ ............. legacy authentification 
  /account/email/ .............. change email page
  /account/delete/ ............. delete account
  /account/openid/ ............. associate a new openid for an account
  /account/password/ ........... change password page
  /account/password/confirm/ ... confirm change of password
  /account/sendpw/password/ .... send a new password

More infos can be found in the project's README.

Requirements

First of all we need to setup the environment with a few required packages:

• Python 2.4 or higher
• Django 0.96.3 or higher
• python-openid-2.x
  

  cd /tmp
  wget http://openidenabled.com/files/python-openid/packages/python-openid-2.2....
  tar -xvf python-openid-2.2.1.tar.gz
  cd python-openid-2.2.1
  python setup.py install

• python-elementtree (required by django-authopenid)
  

  wget http://effbot.org/media/downloads/elementtree-1.2.6-20050316.tar.gz
  ...
  python setup.py install

• python-httplib2 (available with the package manager of your choice)

Project Setup

Have a look at the websvn for the structure of the demo-project. There are downloads for the full project we are going to create in the next steps zipped and as tar.gz. If you download and extract one, you can skip directly to starting the server.

Let's start with creating our project, which will have this basic directory-structure:

  /demoproject/ ....................... urls.py, settings.py, manage.py
  /demoproject/main/ .................. our own app (models.py, views.py)
  /demoproject/django_authopenid/ ..... the django-authopenid libraries
  /demoproject/templates/ ............. all templates for our project and django-authopenid

Let's create the project with this structure now:

django-admin startproject demoproject
cd demoproject
python manage.py startapp main
svn checkout http://django-authopenid.googlecode.com/svn/trunk/django_authopenid
mv django_authopenid/templates .

Thats pretty much it :-) Perhaps get rid of the .svn directories:

rm -rf django_authopenid/.svn templates/.svn templates/authopenid/.svn

At this point we want to set up our settings.py:

1. Database support (eg. sqlite3 with database_name "main.db")
2. OpenIDMiddleware to MIDDLEWARE_CLASSES
   

   MIDDLEWARE_CLASSES = (
       ...
       'django_authopenid.middleware.OpenIDMiddleware',
   )
   

3. Add LOGIN_URL somewhere:
   

   LOGIN_URL = "/account/signin/"

4. Add django_authopenid and our main app to INSTALLED_APPS:
   

   INSTALLED_APPS = (
       ...
       'django_authopenid',
       'demoproject.main',
   )
   

5. Add the template directory:
   

   import os.path
   TEMPLATE_DIRS = (
       os.path.join(os.path.dirname(__file__), 'templates'),
   )

6. Maybe set variables for email

 echo "{% block content %}{% endblock %}" > templates/base.html

Finally, we want to add the django-authopenid url's to urls.py:

    (r'^account/', include('django_authopenid.urls')),

And last but not least: creating the database.

python manage.py syncdb

Starting the Server

The basic setup is completed, let's start the django-server!

python manage.py runserver

Test the login-procedure and account-functions by browsing to http://localhost:8000/account/

Once a user logged in via OpenID, the users URL is stored in request.openid

This could be an example html template:

{% extends "base.html" %}

{% block content %}
    <h1>Django AuthOpenID Test</h1>
    
    <p>You are logged in as {{ request.user }}</p>
    <p>Your OpenID URL: {{ request.openid }}</p>
    <p><a href="/account">Account</p>
{% endblock %}

Hope this could help a bit and you enjoy using OpenID in your Django projects!