[1.7.x] Moved RemoteUserBackend documentation to reference guide.

Backport of 26d118c3fe from master
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Tim Graham 2014-04-18 16:06:26 -04:00
parent b1e7dd445b
commit b06e45bbf6
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Authentication using ``REMOTE_USER``
====================================
.. currentmodule:: django.contrib.auth.backends
This document describes how to make use of external authentication sources
(where the Web server sets the ``REMOTE_USER`` environment variable) in your
Django applications. This type of authentication solution is typically seen on
@ -22,7 +20,8 @@ When the Web server takes care of authentication it typically sets the
Django, ``REMOTE_USER`` is made available in the :attr:`request.META
<django.http.HttpRequest.META>` attribute. Django can be configured to make
use of the ``REMOTE_USER`` value using the ``RemoteUserMiddleware`` and
``RemoteUserBackend`` classes found in :mod:`django.contrib.auth`.
:class:`~django.contrib.auth.backends.RemoteUserBackend` classes found in
:mod:`django.contrib.auth`.
Configuration
=============
@ -40,7 +39,8 @@ First, you must add the
)
Next, you must replace the :class:`~django.contrib.auth.backends.ModelBackend`
with ``RemoteUserBackend`` in the :setting:`AUTHENTICATION_BACKENDS` setting::
with :class:`~django.contrib.auth.backends.RemoteUserBackend` in the
:setting:`AUTHENTICATION_BACKENDS` setting::
AUTHENTICATION_BACKENDS = (
'django.contrib.auth.backends.RemoteUserBackend',
@ -48,7 +48,7 @@ with ``RemoteUserBackend`` in the :setting:`AUTHENTICATION_BACKENDS` setting::
With this setup, ``RemoteUserMiddleware`` will detect the username in
``request.META['REMOTE_USER']`` and will authenticate and auto-login that user
using the ``RemoteUserBackend``.
using the :class:`~django.contrib.auth.backends.RemoteUserBackend`.
.. note::
Since the ``RemoteUserBackend`` inherits from ``ModelBackend``, you will
@ -64,48 +64,6 @@ If your authentication mechanism uses a custom HTTP header and not
class CustomHeaderMiddleware(RemoteUserMiddleware):
header = 'HTTP_AUTHUSER'
``RemoteUserBackend``
=====================
.. class:: django.contrib.auth.backends.RemoteUserBackend
If you need more control, you can create your own authentication backend
that inherits from ``RemoteUserBackend`` and overrides certain parts:
Attributes
~~~~~~~~~~
.. attribute:: RemoteUserBackend.create_unknown_user
``True`` or ``False``. Determines whether or not a
:class:`~django.contrib.auth.models.User` object is created if not already
in the database. Defaults to ``True``.
Methods
~~~~~~~
.. method:: RemoteUserBackend.authenticate(remote_user)
The username passed as ``remote_user`` is considered trusted. This method
simply returns the ``User`` object with the given username, creating a new
``User`` object if :attr:`~RemoteUserBackend.create_unknown_user` is
``True``.
Returns ``None`` if :attr:`~RemoteUserBackend.create_unknown_user` is
``False`` and a ``User`` object with the given username is not found in the
database.
.. method:: RemoteUserBackend.clean_username(username)
Performs any cleaning on the ``username`` (e.g. stripping LDAP DN
information) prior to using it to get or create a
:class:`~django.contrib.auth.models.User` object. Returns the cleaned
username.
.. method:: RemoteUserBackend.configure_user(user)
Configures a newly created user. This method is called immediately after a
new user is created, and can be used to perform custom setup actions, such
as setting the user's groups based on attributes in an LDAP directory.
Returns the user object.
that inherits from :class:`~django.contrib.auth.backends.RemoteUserBackend` and
override one or more of its attributes and methods.

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@ -444,3 +444,37 @@ The following backends are available in :mod:`django.contrib.auth.backends`:
:attr:`request.META['REMOTE_USER'] <django.http.HttpRequest.META>`. See
the :doc:`Authenticating against REMOTE_USER </howto/auth-remote-user>`
documentation.
If you need more control, you can create your own authentication backend
that inherits from this class and override these attributes or methods:
.. attribute:: RemoteUserBackend.create_unknown_user
``True`` or ``False``. Determines whether or not a
:class:`~django.contrib.auth.models.User` object is created if not already
in the database. Defaults to ``True``.
.. method:: RemoteUserBackend.authenticate(remote_user)
The username passed as ``remote_user`` is considered trusted. This method
simply returns the ``User`` object with the given username, creating a new
``User`` object if :attr:`~RemoteUserBackend.create_unknown_user` is
``True``.
Returns ``None`` if :attr:`~RemoteUserBackend.create_unknown_user` is
``False`` and a ``User`` object with the given username is not found in the
database.
.. method:: RemoteUserBackend.clean_username(username)
Performs any cleaning on the ``username`` (e.g. stripping LDAP DN
information) prior to using it to get or create a
:class:`~django.contrib.auth.models.User` object. Returns the cleaned
username.
.. method:: RemoteUserBackend.configure_user(user)
Configures a newly created user. This method is called immediately after a
new user is created, and can be used to perform custom setup actions, such
as setting the user's groups based on attributes in an LDAP directory.
Returns the user object.