A django application (actualy, a middleware and a backend) that allows us:

• to sign our requests and to be authenticated with the signature and some other thing ;)
• not to be responsible for storing the state on client

• django (developed under 1.3.1 - it is likely that older versions will be okay)

1. pip install -e git+http://github.com/mediasite/django-authplug/#egg=django-authplug
2. Put authplug.middleware.PluggableAuthMiddleware to your MIDDLEWARE_CLASSES.

3. Disable django.middleware.csrf.CsrfViewMiddleware.

   Your MIDDLEWARE_CLASSES might look like this: :

   MIDDLEWARE_CLASSES = (
       'django.middleware.common.CommonMiddleware',
       'django.contrib.sessions.middleware.SessionMiddleware',
       #'django.middleware.csrf.CsrfViewMiddleware',
       'authplug.middleware.PluggableAuthMiddleware',
       'django.contrib.auth.middleware.AuthenticationMiddleware',
       'django.contrib.messages.middleware.MessageMiddleware',
   )

4. Put authplug.backends.PluggableAuthBackend to your AUTHENTICATION_BACKENDS.

   If there is no AUTHENTICATION_BACKENDS variable in your settings.py, you can create it (maybe you will need to add django.contrib.auth.backends.ModelBackend). Your AUTHENTICATION_BACKENDS might look like this: :

   AUTHENTICATION_BACKENDS = (
       'authplug.backends.PluggableAuthBackend',
       'django.contrib.auth.backends.ModelBackend',)

Simply run:

pip install -e git+http://github.com/mediasite/django-authplug/#egg=django-authplug

Now you can try to import authplug in python console.

Signing json-requests in your code. :

import urllib
import urllib2
from django.conf import settings
from authplug.client import sign

data = {
    'param1': 'value1',
    'param2': 'value2',
    # ...
    'paramN': 'valueN',
}

signature = sign(data, settings.MY_SECRET_KEY)
data['code'] = settings.MY_SECRET_ID
data['sign'] = signature

try:
    u = urllib2.urlopen('http://example.com/some_service_uri/', data=urllib.urlencode(data))
    result = json.loads(u.read())
except Exception as e:
    print 'Fail', e
else:
    print 'Result:', result