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Description:

datapuntkeycloakoidc 0.5.1

Keycloak OIDC
Keycloak OIDC is a simple Django app that wraps the mozilla_django_oidc
app and implements Keycloak authentication the way we use it at Datapunt.
It creates and updates users and sets their email, username and first-
and lastname based on the info provided by keycloak, and manages
group membership based on keycloak roles.
Quick start

Install using pip
pip install datapunt_keycloak_oidc

Add "keycloak-oidc" to your INSTALLED_APPS (make sure to load after auth!):
INSTALLED_APPS = [
...
'django.contrib.auth',
'keycloak_oidc', # load after auth!
]

Add the mozilla_django_oidc.SessionRefreshMiddleware to your MIDDLEWARE
(middleware involving session and authentication must come first!):
MIDDLEWARE = [
...
'django.contrib.sessions.middleware.SessionMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'mozilla_django_oidc.middleware.SessionRefresh',
]

Add the OIDCAuthenticationBackend to the AUTHENTICATION_BACKENDS:
AUTHENTICATION_BACKENDS = [
'keycloak_oidc.auth.OIDCAuthenticationBackend',
...
]

In settings.py import the default OIDC settings. These
defaults will work in most situations.
# Import from keycloak_oidc settings and use the defaults
from keycloak_oidc.default_settings import *

Set the OIDC_RP_CLIENT_ID and OIDC_RP_CLIENT_SECRET in settings.py.
Note that these should be kept secret. Therefore these should preferable
be set in the OS ENV. Obtain these from the keycloak provider.
OIDC_RP_CLIENT_ID = os.environ['OIDC_RP_CLIENT_ID']
OIDC_RP_CLIENT_SECRET = os.environ['OIDC_RP_CLIENT_SECRET']

Keycloak only talks to urls that are whitelisted. Therefore, make
sure that the app url for production is added to keycloak. To make
local development possible, also make sure localhost:8080 (or any other port)
is added.

Add the OIDC provider URLs to settings.py, and set the proper OS env. This default
will fall back to the acceptance keycloak urls.
OIDC_OP_AUTHORIZATION_ENDPOINT = os.getenv('OIDC_OP_AUTHORIZATION_ENDPOINT',
'https://iam.amsterdam.nl/auth/realms/datapunt-acc/protocol/openid-connect/auth')
OIDC_OP_TOKEN_ENDPOINT = os.getenv('OIDC_OP_TOKEN_ENDPOINT',
'https://iam.amsterdam.nl/auth/realms/datapunt-acc/protocol/openid-connect/token')
OIDC_OP_USER_ENDPOINT = os.getenv('OIDC_OP_USER_ENDPOINT',
'https://iam.amsterdam.nl/auth/realms/datapunt-acc/protocol/openid-connect/userinfo')
OIDC_OP_JWKS_ENDPOINT = os.getenv('OIDC_OP_JWKS_ENDPOINT',
'https://iam.amsterdam.nl/auth/realms/datapunt-acc/protocol/openid-connect/certs')
OIDC_OP_LOGOUT_ENDPOINT = os.getenv('OIDC_OP_LOGOUT_ENDPOINT',
'https://iam.amsterdam.nl/auth/realms/datapunt-acc/protocol/openid-connect/logout')

When using Django-rest-framework, add the mozilla_django_oidc
OIDCAuthentication to the default authentication classes (and
make sure the DRF SessionAuthentication has been added):
REST_FRAMEWORK = dict(
...
DEFAULT_AUTHENTICATION_CLASSES=(
'mozilla_django_oidc.contrib.drf.OIDCAuthentication',
'rest_framework.authentication.SessionAuthentication'
...
)
)

When using Django-rest-framework, override the InAuthGroup permission
class to implement role based access control:
from keycloak_oidc.drf.permissions import InAuthGroup

class InTestAuthGroup(InAuthGroup):
"""
A permission to allow access if and only if a user is logged in,
and is a member of the 'test' role inside keycloak.
"""
allowed_group_names = ['test']

Include the keycloak-oidc URLconf in your project urls.py:
url(r'^oidc/', include('keycloak_oidc.urls')),

IMPORTANT: Make sure to read through the Mozilla Django OIDC docs:
https://mozilla-django-oidc.readthedocs.io/en/stable/installation.html

All settings that can be configured are documented there.