django/docs/howto/apache-auth.txt

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Authenticating against Django's user database from Apache
=========================================================
Since keeping multiple authentication databases in sync is a common problem when
dealing with Apache, you can configuring Apache to authenticate against Django's
:doc:`authentication system </topics/auth>` directly. For example, you
could:
* Serve static/media files directly from Apache only to authenticated users.
* Authenticate access to a Subversion_ repository against Django users with
a certain permission.
* Allow certain users to connect to a WebDAV share created with mod_dav_.
.. _Subversion: http://subversion.tigris.org/
.. _mod_dav: http://httpd.apache.org/docs/2.0/mod/mod_dav.html
Configuring Apache
==================
To check against Django's authorization database from a Apache configuration
file, you'll need to use mod_python's ``PythonAuthenHandler`` directive along
with the standard ``Auth*`` and ``Require`` directives:
.. code-block:: apache
<Location /example/>
AuthType Basic
AuthName "example.com"
Require valid-user
SetEnv DJANGO_SETTINGS_MODULE mysite.settings
PythonAuthenHandler django.contrib.auth.handlers.modpython
</Location>
.. admonition:: Using the authentication handler with Apache 2.2
If you're using Apache 2.2, you'll need to take a couple extra steps.
You'll need to ensure that ``mod_auth_basic`` and ``mod_authz_user``
are loaded. These might be compiled statically into Apache, or you might
need to use ``LoadModule`` to load them dynamically (as shown in the
example at the bottom of this note).
You'll also need to insert configuration directives that prevent Apache
from trying to use other authentication modules, as well as specifying
the ``AuthUserFile`` directive and pointing it to ``/dev/null``. Depending
on which other authentication modules you have loaded, you might need one
or more of the following directives:
.. code-block:: apache
AuthBasicAuthoritative Off
AuthDefaultAuthoritative Off
AuthzLDAPAuthoritative Off
AuthzDBMAuthoritative Off
AuthzDefaultAuthoritative Off
AuthzGroupFileAuthoritative Off
AuthzOwnerAuthoritative Off
AuthzUserAuthoritative Off
A complete configuration, with differences between Apache 2.0 and
Apache 2.2 marked in bold, would look something like:
.. parsed-literal::
**LoadModule auth_basic_module modules/mod_auth_basic.so**
**LoadModule authz_user_module modules/mod_authz_user.so**
...
<Location /example/>
AuthType Basic
AuthName "example.com"
**AuthUserFile /dev/null**
**AuthBasicAuthoritative Off**
Require valid-user
SetEnv DJANGO_SETTINGS_MODULE mysite.settings
PythonAuthenHandler django.contrib.auth.handlers.modpython
</Location>
By default, the authentication handler will limit access to the ``/example/``
location to users marked as staff members. You can use a set of
``PythonOption`` directives to modify this behavior:
================================ =========================================
``PythonOption`` Explanation
================================ =========================================
``DjangoRequireStaffStatus`` If set to ``on`` only "staff" users (i.e.
those with the ``is_staff`` flag set)
will be allowed.
Defaults to ``on``.
``DjangoRequireSuperuserStatus`` If set to ``on`` only superusers (i.e.
those with the ``is_superuser`` flag set)
will be allowed.
Defaults to ``off``.
``DjangoPermissionName`` The name of a permission to require for
access. See :ref:`custom permissions
<custom-permissions>` for more
information.
By default no specific permission will be
required.
================================ =========================================
Note that sometimes ``SetEnv`` doesn't play well in this mod_python
configuration, for reasons unknown. If you're having problems getting
mod_python to recognize your ``DJANGO_SETTINGS_MODULE``, you can set it using
``PythonOption`` instead of ``SetEnv``. Therefore, these two Apache directives
are equivalent::
SetEnv DJANGO_SETTINGS_MODULE mysite.settings
PythonOption DJANGO_SETTINGS_MODULE mysite.settings