django-allauth-cas/docs/basic_setup.txt
2018-03-13 16:59:45 +01:00

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Basic setup
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Following the instructions on this page, your will create a provider for
allauth, which allows users to connect through a CAS server.
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1. Create an app
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``allauth`` determines available providers by scanning ``INSTALLED_APPS``.
Let's begin by creating an app for the CAS provider:
.. code-block:: bash
$ python manage.py startapp mycas
And add it to the ``INSTALLED_APPS``:
.. code-block:: python
INSTALLED_APPS = [
# …
'allauth',
'allauth.account',
'allauth.socialaccount',
'allauth_cas',
'mycas',
]
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2. Create the provider
**********************
In ``mycas/provider.py``, create subclasses of ``ProviderAccount`` and
``CASProvider``.
The ``CASProvider`` subclass defines how to process data returned by the CAS
server.
.. code-block:: python
from allauth.socialaccount.providers.base import ProviderAccount
from allauth_cas.providers import CASProvider
class MyCASAccount(ProviderAccount):
pass
class MyCASProvider(CASProvider):
id = 'mycas' # Choose an identifier for your provider
name = 'My CAS' # Verbose name of your provider
account_class = MyCASAccount
provider_classes = [MyCASProvider]
.. seealso::
:doc:`advanced/extract_data`
*******************
3. Create the views
*******************
Subclass ``CASAdapter`` to give your configuration as a CAS client.
.. code-block:: python
from allauth_cas.views import CASAdapter
from .providers import MyCASProvider
class MyCASAdapter(CASAdapter):
provider_id = MyCASProvider.id
url = 'https://mycas.mydomain.net' # The CAS server url
version = 3 # Select the CAS protocol version used by the CAS server: 1, 2, 3…
Then, you can simply create the login and callback views.
.. code-block:: python
from allauth_cas.views import CASCallbackView, CASLoginView
login = CASLoginView.adapter_view(MyCASAdapter)
callback = CASLogoutView.adapter_view(MyCASAdapter)
.. seealso::
:doc:`advanced/cas_client`
******************
4. Create the urls
******************
Finally, add the urls in ``mycas/urls.py``.
.. code-block:: python
from allauth_cas.urls import default_urlpatterns
from .provider import MyCASProvider
urlpatterns = default_urlpatterns(MyCasProvider)
There is no need to do more, as ``allauth`` is responsible for including these
urls.
*******************************************
5. Allow your application at the CAS server
*******************************************
.. note::
This step is only required if the CAS server restricts access to known
applications.
CAS servers may restrict their usage to a list of known clients. To do so,
the service url must be known by the CAS server. For our case, the service
url is the callback url of a CAS provider.
The service url is formatted as:
.. code-block:: none
<url of your application>/<path to allauth urls>/<provider id>/login/callback/
Assuming a site is served at ``https://mydomain.net``, that the allauth urls
are included under ``accounts/``, and the provider id is ``mycas``, the service url
is:
.. code-block:: none
https://mydomain.net/accounts/mycas/login/callback
While in local development, it can be:
.. code-block:: none
http://127.0.0.1:8000/accounts/mycas/login/callback
This url should be added to the authorized services within the CAS server
configuration (by yourself or someone in charge of the server).