Fixed #14785 - fixes to middleware docs - thanks adamv for the patch.

.. module:: django.middleware.cache

   :synopsis: Middleware for the site-wide cache.

.. class:: django.middleware.cache.UpdateCacheMiddleware

.. class:: UpdateCacheMiddleware

.. class:: django.middleware.cache.FetchFromCacheMiddleware

.. class:: FetchFromCacheMiddleware

Enable the site-wide cache. If these are enabled, each Django-powered page will

be cached for as long as the :setting:`CACHE_MIDDLEWARE_SECONDS` setting

.. module:: django.middleware.common

   :synopsis: Middleware adding "common" conveniences for perfectionists.

.. class:: django.middleware.common.CommonMiddleware

.. class:: CommonMiddleware

Adds a few conveniences for perfectionists:

.. module:: django.middleware.doc

   :synopsis: Middleware to help your app self-document.

.. class:: django.middleware.doc.XViewMiddleware

.. class:: XViewMiddleware

Sends custom ``X-View`` HTTP headers to HEAD requests that come from IP

addresses defined in the :setting:`INTERNAL_IPS` setting. This is used by

.. module:: django.middleware.gzip

   :synopsis: Middleware to serve gziped content for performance.

.. class:: django.middleware.gzip.GZipMiddleware

.. class:: GZipMiddleware

Compresses content for browsers that understand gzip compression (all modern

browsers).

.. module:: django.middleware.http

   :synopsis: Middleware handling advanced HTTP features.

.. class:: django.middleware.http.ConditionalGetMiddleware

.. class:: ConditionalGetMiddleware

Handles conditional GET operations. If the response has a ``ETag`` or

``Last-Modified`` header, and the request has ``If-None-Match`` or

Reverse proxy middleware

------------------------

.. class:: django.middleware.http.SetRemoteAddrFromForwardedFor

.. class:: SetRemoteAddrFromForwardedFor

.. versionchanged:: 1.1

.. module:: django.middleware.locale

   :synopsis: Middleware to enable language selection based on the request.

.. class:: django.middleware.locale.LocaleMiddleware

.. class:: LocaleMiddleware

Enables language selection based on data from the request. It customizes

content for each user. See the :doc:`internationalization documentation

.. module:: django.contrib.messages.middleware

   :synopsis: Message middleware.

.. class:: django.contrib.messages.middleware.MessageMiddleware

.. class:: MessageMiddleware

.. versionadded:: 1.2

   ``MessageMiddleware`` was added.

.. module:: django.contrib.sessions.middleware

   :synopsis: Session middleware.

.. class:: django.contrib.sessions.middleware.SessionMiddleware

.. class:: SessionMiddleware

Enables session support. See the :doc:`session documentation

</topics/http/sessions>`.

.. module:: django.contrib.auth.middleware

  :synopsis: Authentication middleware.

.. class:: django.contrib.auth.middleware.AuthenticationMiddleware

.. class:: AuthenticationMiddleware

Adds the ``user`` attribute, representing the currently-logged-in user, to

every incoming ``HttpRequest`` object. See :doc:`Authentication in Web requests

   :synopsis: Middleware adding protection against Cross Site Request

              Forgeries.

.. class:: django.middleware.csrf.CsrfMiddleware

.. class:: CsrfMiddleware

.. versionadded:: 1.0

.. module:: django.middleware.transaction

   :synopsis: Middleware binding a database transaction to each Web request.

.. class:: django.middleware.transaction.TransactionMiddleware

.. class:: TransactionMiddleware

Binds commit and rollback to the request/response phase. If a view function

runs successfully, a commit is done. If it fails with an exception, a rollback