# Django Labs Accounts
[](https://circleci.com/gh/pennlabs/django-labs-accounts)
[](https://codecov.io/gh/pennlabs/django-labs-accounts)
[](https://pypi.org/project/django-labs-accounts/)
## Requirements
* Python 3.6+
* Django 2.1+
## Installation
Install with pip `pip install django-labs-accounts`
Add `accounts` to `INSTALLED_APPS`
```python
INSTALLED_APPS = (
...
'accounts.apps.AccountsConfig',
'identity.apps.IdentityConfig', # If you want to enable B2B IPC
...
)
```
Add the new accounts backend to `AUTHENTICATION_BACKENDS`
```python
AUTHENTICATION_BACKENDS = (
...
'accounts.backends.LabsUserBackend',
'django.contrib.auth.backends.ModelBackend',
...
)
```
(Optional) Add the new Platform DRF authentication class to rest framework's `DEFAULT_AUTHENTICATION_CLASSES`. This authentication class should go at the end of the list of authentication classes in most cases.
```python
REST_FRAMEWORK = {
...
'DEFAULT_AUTHENTICATION_CLASSES': [
'rest_framework.authentication.SessionAuthentication',
'rest_framework.authentication.BasicAuthentication',
'accounts.authentication.PlatformAuthentication',
]
...
}
```
Add the following to `urls.py`
```python
urlpatterns = [
...
path('accounts/', include('accounts.urls', namespace='accounts')),
...
]
```
## Documentation
All settings are handled within a `PLATFORM_ACCOUNTS` dictionary.
Example:
```python
PLATFORM_ACCOUNTS = {
'CLIENT_ID': 'id',
'CLIENT_SECRET': 'secret',
'REDIRECT_URI': 'example',
'ADMIN_PERMISSION': 'example_admin'
'CUSTOM_ADMIN': True
}
```
The available settings are:
`CLIENT_ID` the client ID to connect to platform with. Defaults to `LABS_CLIENT_ID` environment variable.
`CLIENT_SECRET` the client secret to connect to platform with. Defaults to `LABS_CLIENT_SECRET` environment variable.
`REDIRECT_URI` the redirect uri to send to platform. Defaults to first the `LABS_REDIRECT_URI` environment variable and then generating the value from the request object.
`SCOPE` the scope for this applications tokens. Must include `introspection`. Defaults to `['read', 'introspection']`.
`PLATFORM_URL` URL of platform server to connect to. Should be `https://platform(-dev).pennlabs.org` (no trailing slash)
`ADMIN_PERMISSION` The name of the permission on platform to grant admin access. Defaults to `example_admin`
`CUSTOM_ADMIN` enable the custom admin login page to log in users through platform. Defaults to `True`
When developing locally with an http (not https) callback URL, it may be helpful to set the `OAUTHLIB_INSECURE_TRANSPORT` environment variable.
```python
os.environ['OAUTHLIB_INSECURE_TRANSPORT'] = "1"
```
## Custom post authentication
If you want to customize how DLA saves user information from platform into User objects, you can subclass `accounts.backends.LabsUserBackend` and redefine the post_authenticate method. This method will be run after the user is logged in. The parameters are:
* `user` the user object
* `created` a boolean delineating if the user was just created
* `dictionary` a dictionary of user information from platform.
Then just set the `AUTHENTICATION_BACKENDS` setting to be the subclassed backend.
Here is an example of a custom backend that sets every user's first name to `"Modified"`.
```python
from accounts.backends import LabsUserBackend
class CustomBackend(LabsUserBackend):
def post_authenticate(self, user, created, dictionary):
user.first_name = 'Modified'
user.save()
```
## B2B IPC
DLA also provides an interface for backend to backend IPC requests. With B2B IPC implemented, the backend of a product will—at startup time—request platform for a JWT to verify its identity. Each product will have an allow-list, and this will enable products to make requests to each other.
In order to limit a view to only be available to a B2B IPC request, you can use the included DRF permission:
```python
from identity.permissions import B2BPermission
class TestView(APIView):
permission_classes = [B2BPermission("urn:pennlabs:example")]
```
Make sure to define an URN to limit access. Valid URNs are either a specific product (ex. `urn:pennlabs:platform`) or a wildcard (ex. `urn:pennlabs:*`)
In order to make an IPC request, use the included helper function:
```python
from identity.identity import authenticated_b2b_request
result = authenticated_b2b_request('GET', 'http://url/path')
```
## Use in Production
DLA and Penn Labs' templates are set up so that no configuration is needed to run in development. However, in production a client ID and client secret need to be set. These values should be set in vault. Contact platform for both credentials and any questions you have.
## B2B IPC
DLA also provides an interface for backend to backend IPC requests. In order to limit a view to only be available to a B2B IPC request, you can use the included DRF permission:
```python
from identity.permissions import B2BPermission
class TestView(APIView):
permission_classes = [B2BPermission("urn:pennlabs:example")]
```
Make sure to define an URN to limit access. Valid URNs are either a specific product (ex. `urn:pennlabs:platform`) or a wildcard (ex. `urn:pennlabs:*`)
In order to make an IPC request, use the included helper function:
```python
from identity.identity import authenticated_b2b_request
result = authenticated_b2b_request('GET', 'http://url/path')
```
## Changelog
See [CHANGELOG.md](https://github.com/pennlabs/django-labs-accounts/blob/master/CHANGELOG.md)
## License
See [LICENSE](https://github.com/pennlabs/django-labs-accounts/blob/master/LICENSE)