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A partial implementation of the SCIM 2.0 provider specification for use with Django.

Project Description

This is a partial provider-side implementation of the SCIM 2.0 [1] specification for use in Django. It covers:

  • Serialization of Django User objects to SCIM documents
  • REST view for <prefix>/Users/uid
  • REST view for <prefix>/Users/.search
  • SCIM filter query parser covering all operators and most fields
  • Limited pluggability support

Note that currently the only supported database is Postgres.

Installation

$ pip install django_scim

Then add the django_scim app to INSTALLED_APPS in Django’s settings file and the necessary url mappings:

urlpatterns = patterns('',
    url(r'^/scim/v2/Users/.search/?$',
        SearchView.as_view(), name='scim-search'),
    url(r'^/scim/v2/Users/([^/]+)$', UserView.as_view(), name='scim-user'),
)

Extensibility

By default, django_scim uses the email field on the User class. However, if your application maintains multiple identities using custom separate database tables, you can override django_scim.models.SCIMUser and pull that in:

from django_scim.models import SCIMUser as _SCIMUser

from acme.apps.bb.models import Identity


class SCIMUser(_SCIMUser):
    def __init__(self, user):
        super(SCIMUser, self).__init__(user)
        self.identities = (Identity.objects
                                   .filter(profile__user_id=self.user.id))

    @property
    def emails(self):
        return {i.email: i.primary for i in self.identities}

Here we keep multiple email addresses in a table that is linked to UserProfile. Next, tell the views to use this class instead of the default:

url(r'^/scim/v2/Users/([^/]+)$', UserView.as_view(usercls=SCIMUser),
    name='scim-user'),

When your email address live in different tables, you’ll also need to extend the filter query parser to make sure they can be queried on:

from django_scim.filter import SCIMFilterTransformer


class AcmeSCIMTransformer(SCIMFilterTransformer):
    email = lambda *args: 'i.email'

    def join(self):
        return """
            JOIN bb_userprofile p ON p.user_id = u.id
            LEFT OUTER JOIN bb_identity i ON i.profile_id = p.id
            """

And pass it on to the view:

url(r'^/scim/v2/Users/([^/]+)$',
    UserView.as_view(usercls=SCIMUser, parser=AcmeSCIMTransformer),
    name='scim-user'),
[1]http://www.simplecloud.info/

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