How to test CAS as a developer without a server

The django-mama-cas project is an +easy to run CAS implementation built on top of Django.

Prerequisites

Create a new virtualenv: python3 -m venv <your virtualenv>
Activate your virtualenv: source /path/to/your/virtualenv/bin/activate

Install Django and django-mama-cas: +

python -m pip install "django<3" "django-mama-cas==2.4.0"
+

Create a Django project in the current directory: +
```
django-admin startproject cas_test .
+
```
+
Follow the install directions for django-mama-cas
Setup the SQLite database: python manage.py migrate
Create a user: +
```
python manage.py createsuperuser
+
```
+
1. Use whatever you want as the username and password.
2. Leave the other fields blank.
+
Use the built-in Django test server to serve the CAS endpoints on port 8000: +
```
python manage.py runserver
+
```
+

You should now have a Django project configured to serve CAS authentication with +a single user created.

Configure Synapse (and Element) to use CAS

Modify your homeserver.yaml to enable CAS and point it to your locally +running Django test server: +

cas_config:
+  enabled: true
+  server_url: "http://localhost:8000"
+  service_url: "http://localhost:8081"
+  #displayname_attribute: name
+  #required_attributes:
+  #    name: value
+

Restart Synapse.

Note that the above configuration assumes the homeserver is running on port 8081 +and that the CAS server is on port 8000, both on localhost.

Testing the configuration

Then in Element:

Visit the login page with a Element pointing at your homeserver.
Click the Single Sign-On button.
Login using the credentials created with createsuperuser.
You should be logged in.

If you want to repeat this process you'll need to manually logout first:

http://localhost:8000/admin/
Click "logout" in the top right.

+ +