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https://github.com/querateam/django-qsessions

Extended session backends for Django (Sessions store IP, User Agent, and foreign key to User)
https://github.com/querateam/django-qsessions

cache django python session session-management sessions

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Extended session backends for Django (Sessions store IP, User Agent, and foreign key to User)

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# Django QSessions

[![pypi](https://img.shields.io/pypi/v/django-qsessions.svg)](https://pypi.python.org/pypi/django-qsessions/)
[![tests ci](https://github.com/QueraTeam/django-qsessions/workflows/tests/badge.svg)](https://github.com/QueraTeam/django-qsessions/actions)
[![coverage](https://img.shields.io/endpoint?url=https://gist.githubusercontent.com/quera-org/24a6d63ff9d29d9be5399169f8199ca0/raw/pytest-coverage__main.json)](https://github.com/QueraTeam/django-qsessions/actions)
[![MIT](https://img.shields.io/github/license/QueraTeam/django-qsessions.svg)](https://github.com/QueraTeam/django-qsessions/blob/master/LICENSE.txt)
[![black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)

**django-qsessions** offers two extended session backends for Django.
They extend Django's `db` and `cached_db` backends (and `Session` model)
with following extra features:

- Sessions have a foreign key to User
- Sessions store IP and User Agent

These features help you implement "Session Management" and show a list
of active sessions to the user. You can display IP, location and user
agent for each session and add an option to revoke sessions.

## Comparison

Here is a brief comparison between Django's session backends (db, cache,
cached_db), and django-qsessions.




django
qsessions


cache
db
cached_db
db
cached_db




Performance
✔✔






Persistence







Foreign Key to User







Store IP and User Agent





## Compatibility

- Python: **3.8**, **3.9**, **3.10**, **3.11**, **3.12**
- Django: **4.2**, **5.0**, **5.1**

## Installation

If your system is in production and there are active sessions using
another session backend, you need to migrate them manually. We have no
migration script.

1. If you want to use the `cached_db` backend, make sure you've
[configured your
cache](https://docs.djangoproject.com/en/dev/topics/cache/). If you
have multiple caches defined in `CACHES`, Django will use the
default cache. To use another cache, set `SESSION_CACHE_ALIAS` to
the name of that cache.

2. Install the latest version from PyPI:

```sh
pip install django-qsessions
```

3. In settings:

- In `INSTALLED_APPS` replace `'django.contrib.sessions'` with
`'qsessions'`.
- In `MIDDLEWARE` or `MIDDLEWARE_CLASSES` replace
`'django.contrib.sessions.middleware.SessionMiddleware'` with
`'qsessions.middleware.SessionMiddleware'`.
- Set `SESSION_ENGINE` to:
- `'qsessions.backends.cached_db'` if you want to use
`cached_db` backend.
- `'qsessions.backends.db'` if you want to use `db` backend.

4. Run migrations to create `qsessions.models.Session` model.

```sh
python manage.py migrate qsessions
```

To enable location detection using GeoIP2 (optional):

5. Install `geoip2` package:

```sh
pip install geoip2
```

6. Set `GEOIP_PATH` to a directory for storing GeoIP2 database.

7. Run the following command to download latest GeoIP2 database. You
can add this command to a cron job to update GeoIP2 DB
automatically. Due to [Maxmind license
changes](https://blog.maxmind.com/2019/12/18/significant-changes-to-accessing-and-using-geolite2-databases/)
you will need to acquire and use a license key for downloading the
databases. You can pass the key on the command line, or in the
`MAXMIND_LICENSE_KEY` environment variable.

```sh
python manage.py download_geoip_db -k mykey
```

## Usage

django-qsessions has a custom `Session` model with following extra
fields: `user`, `user_agent`, `created_at`, `updated_at`, `ip`.

Get a user's sessions:

```python
user.session_set.filter(expire_date__gt=timezone.now())
```

Delete a session:

```python
# Deletes the session from both the database and the cache.
session.delete()
```

Logout a user:

```python
user.session_set.all().delete()
```

Get session creation time (user login time):

```python
>>> session.created_at
datetime.datetime(2018, 6, 12, 17, 9, 17, 443909, tzinfo=)
```

Get IP and user agent:

```python
>>> session.ip
'127.0.0.1'
>>> session.user_agent
'Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Mobile Safari/537.36'
```

Get user device (parsed user-agent string):

```python
>>> str(session.device())
'K / Android 10 / Chrome Mobile 118.0.0'
>>> session.device().device
Device(family='K', brand='Generic_Android', model='K')
>>> session.device().os
OperatingSystem(family='Android', version=(10,), version_string='10')
>>> session.device().browser
Browser(family='Chrome Mobile', version=(118, 0, 0), version_string='118.0.0')
```

And if you have configured GeoIP2, you can get location info using `.location()`
and `.location_info()`:

```python
>>> session.location()
'Tehran, Iran'

>>> session.location_info()
{'city': 'Tehran', 'continent_code': 'AS', 'continent_name': 'Asia', 'country_code': 'IR', 'country_name': 'Iran', 'time_zone': 'Asia/Tehran', ...}
```

Admin page:

![image](https://user-images.githubusercontent.com/2115303/41525284-b0b258b0-72f5-11e8-87f1-8770e0094f4c.png)

### Caveats

- `session.updated_at` is not the session's exact last activity. It's
updated each time the session object in DB is saved. (e.g. when user
logs in, or when ip, user agent, or session data changes)

## Why not `django-user-sessions`?

[django-user-sessions](https://github.com/Bouke/django-user-sessions)
has the same functionality, but only extends the `db` backend. Using a
cache can improve performance.

We got ideas and some codes from django-user-sessions. Many thanks to
[Bouke Haarsma](https://github.com/Bouke) for writing
django-user-sessions.

## Development

- Create and activate a python virtualenv.
- Install development dependencies in your virtualenv with `pip install -e '.[dev]'`
- Install pre-commit hooks with `pre-commit install`
- Run tests with coverage:
- `py.test --cov`

## TODO

- Write better documentation.
- Explain how it works (in summary)
- Add more details to existing documentation.
- Write more tests
- Performance benchmark (and compare with Django's `cached_db`)

Contributions are welcome!

## License

MIT