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Tom Christie 2012-09-05 13:03:55 +01:00
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# Authentication
Authentication is the mechanism of associating an incoming request with a set of identifying credentials, such as the user the request came from, or the token that it was signed with. The [permission] and [throttling] policies can then use those credentials to determine if the request should be permitted.
REST framework provides a number of authentication policies out of the box, and also allows you to implement custom policies.
## BasicAuthentication
Authentication will run the first time either the `request.user` or `request.auth` properties are accessed, and determines how those properties are initialized.
## Setting the authentication policy
The default authentication policy may be set globally, using the `DEFAULT_AUTHENTICATION_CLASSES` setting. For example.
API_SETTINGS = {
'DEFAULT_AUTHENTICATION_CLASSES': (
'djangorestframework.authentication.SessionAuthentication',
)
}
You can also set the authentication policy on a per-view basis, using the `APIView` class based views.
class ExampleView(APIView):
authentication_classes = (SessionAuthentication,)
def get(self, request, format=None):
content = {
'user': unicode(request.user), # `django.contrib.auth.User` instance.
'auth': unicode(request.auth), # None
}
return Response(content)
Or, if you're using the `@api_view` decorator with function based views.
@api_view(allowed=('GET',), authentication_classes=(SessionAuthentication,))
def example_view(request, format=None):
content = {
'user': unicode(request.user), # `django.contrib.auth.User` instance.
'auth': unicode(request.auth), # None
}
return Response(content)
## UserBasicAuthentication
This policy uses [HTTP Basic Authentication][basicauth], signed against a user's username and password. User basic authentication is generally only appropriate for testing.
**Note:** If you run `UserBasicAuthentication` in production your API must be `https` only, or it will be completely insecure. You should also ensure that your API clients will always re-request the username and password at login, and will never store those details to persistent storage.
If successfully authenticated, `UserBasicAuthentication` provides the following credentials.
* `request.user` will be a `django.contrib.auth.models.User` instance.
* `request.auth` will be `None`.
## TokenBasicAuthentication
This policy uses [HTTP Basic Authentication][basicauth], signed against a token key and secret. Token basic authentication is appropriate for client-server setups, such as native desktop and mobile clients.
**Note:** If you run `TokenBasicAuthentication` in production your API must be `https` only, or it will be completely insecure.
If successfully authenticated, `TokenBasicAuthentication` provides the following credentials.
* `request.user` will be a `django.contrib.auth.models.User` instance.
* `request.auth` will be a `djangorestframework.models.BasicToken` instance.
## OAuthAuthentication
This policy uses the [OAuth 2.0][oauth] protocol to authenticate requests. OAuth is appropriate for server-server setups, such as when you want to allow a third-party service to access your API on a user's behalf.
If successfully authenticated, `OAuthAuthentication` provides the following credentials.
* `request.user` will be a `django.contrib.auth.models.User` instance.
* `request.auth` will be a `djangorestframework.models.OAuthToken` instance.
## SessionAuthentication
This policy uses Django's default session backend for authentication. Session authentication is appropriate for AJAX clients that are running in the same session context as your website.
If successfully authenticated, `SessionAuthentication` provides the following credentials.
* `request.user` will be a `django.contrib.auth.models.User` instance.
* `request.auth` will be `None`.
## Custom authentication policies
To implement a custom authentication policy, subclass `BaseAuthentication` and override the `authenticate(self, request)` method. The method should return a two-tuple of `(user, auth)` if authentication succeeds, or `None` otherwise.
[basicauth]: http://tools.ietf.org/html/rfc2617
[oauth]: http://oauth.net/2/
[permission]: permissions.md
[throttling]: throttling.md

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@ -5,27 +5,89 @@ For example your project's `settings.py` file might look like this:
API_SETTINGS = {
'DEFAULT_RENDERERS': (
'djangorestframework.renderers.JSONRenderer',
'djangorestframework.renderers.YAMLRenderer',
)
'DEFAULT_PARSERS': (
'djangorestframework.parsers.JSONParser',
'djangorestframework.parsers.YAMLParser',
)
}
## DEFAULT_RENDERERS
A list or tuple of renderer classes.
A list or tuple of renderer classes, that determines the default set of renderers that may be used when returning a `Response` object.
Default:
(
'djangorestframework.renderers.JSONRenderer',
'djangorestframework.renderers.DocumentingHTMLRenderer')`
'djangorestframework.renderers.JSONRenderer',
'djangorestframework.renderers.DocumentingHTMLRenderer'
'djangorestframework.renderers.TemplateHTMLRenderer'
)
## DEFAULT_PARSERS
A list or tuple of parser classes.
A list or tuple of parser classes, that determines the default set of parsers used when accessing the `request.DATA` property.
Default:
(
'djangorestframework.parsers.JSONParser',
'djangorestframework.parsers.FormParser'
)
## DEFAULT_AUTHENTICATION
A list or tuple of authentication classes, that determines the default set of authenticators used when accessing the `request.user` or `request.auth` properties.
Default if `DEBUG` is `True`:
(
'djangorestframework.authentication.SessionAuthentication',
'djangorestframework.authentication.UserBasicAuthentication'
)
Default if `DEBUG` is `False`:
(
'djangorestframework.authentication.SessionAuthentication',
)
## DEFAULT_PERMISSIONS
Default: `()`
## DEFAULT_THROTTLES
Default: `()`
## DEFAULT_MODEL_SERIALIZER
Default: `djangorestframework.serializers.ModelSerializer`
## DEFAULT_PAGINATION_SERIALIZER
Default: `djangorestframework.pagination.PaginationSerializer`
## FORMAT_SUFFIX_KWARG
Default: `format`
## UNAUTHENTICATED_USER_CLASS
Default: `django.contrib.auth.models.AnonymousUser`
## FORM_METHOD_OVERRIDE
Default: `_method`
## FORM_CONTENT_OVERRIDE
Default: `_content`
## FORM_CONTENTTYPE_OVERRIDE
Default: `_content_type`
## URL_ACCEPT_OVERRIDE
Default: `_accept`

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@ -91,6 +91,7 @@ General guides to using REST framework.
* [CSRF][csrf]
* [Form overloading][formoverloading]
* [Contributing to REST framework][contributing]
* [Credits][credits]
## Development
@ -151,10 +152,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
[permissions]: api-guide/permissions.md
[throttling]: api-guide/throttling.md
[exceptions]: api-guide/exceptions.md
[status]: api-guide/status.md
[status]: api-guide/status-codes.md
[reverse]: api-guide/reverse.md
[settings]: api-guide/settings.md
[csrf]: topics/csrf.md
[formoverloading]: topics/formoverloading.md
[contributing]: topics/contributing.md
[credits]: topics/credits.md

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@ -103,6 +103,7 @@ margin-top: 5px;
<ul class="dropdown-menu">
<li><a href="{{ base_url }}/topics/csrf{{ suffix }}">Working with AJAX and CSRF</a></li>
<li><a href="{{ base_url }}/topics/formoverloading{{ suffix }}">Browser based PUT, PATCH and DELETE</a></li>
<li><a href="{{ base_url }}/topics/contributing{{ suffix }}">Contributing to REST framework</a></li>
<li><a href="{{ base_url }}/topics/credits{{ suffix }}">Credits</a></li>
</ul>
</li>

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# Contributing to REST framework
## Accessing settings
**Describe api_settings**
## Managing compatibility issues
**Describe compat module**
## Running the tests