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110 lines
4.4 KiB
Plaintext
110 lines
4.4 KiB
Plaintext
.. _releases-1.2:
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============================================
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Django 1.2 release notes — UNDER DEVELOPMENT
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============================================
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This page documents release notes for the as-yet-unreleased Django 1.2. As such
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it is tentative and subject to change. It provides up-to-date information for
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those who are following trunk.
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Django 1.2 includes a number of nifty `new features`_, lots of bug
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fixes, and an easy upgrade path from Django 1.1.
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.. _new features: `What's new in Django 1.2`_
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.. _backwards-incompatible-changes-1.2:
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Backwards-incompatible changes in 1.2
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=====================================
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CSRF Protection
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---------------
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There have been large changes to the way that CSRF protection works, detailed in
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:ref:`the CSRF documentaton <ref-contrib-csrf>`. The following are the major
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changes that developers must be aware of:
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* ``CsrfResponseMiddleware`` and ``CsrfMiddleware`` have been deprecated, and
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will be removed completely in Django 1.4, in favour of a template tag that
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should be inserted into forms.
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* All contrib apps use a ``csrf_protect`` decorator to protect the view. This
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requires the use of the csrf_token template tag in the template, so if you
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have used custom templates for contrib views, you MUST READ THE UPGRADE
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INSTRUCTIONS to fix those templates.
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* ``CsrfViewMiddleware`` is included in :setting:`MIDDLEWARE_CLASSES` by
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default. This turns on CSRF protection by default, so that views that accept
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POST requests need to be written to work with the middleware. Instructions
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on how to do this are found in the CSRF docs.
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* All of the CSRF has moved from contrib to core (with backwards compatible
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imports in the old locations, which are deprecated).
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LazyObject
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----------
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``LazyObject`` is an undocumented utility class used for lazily wrapping other
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objects of unknown type. In Django 1.1 and earlier, it handled introspection in
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a non-standard way, depending on wrapped objects implementing a public method
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``get_all_members()``. Since this could easily lead to name clashes, it has been
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changed to use the standard method, involving ``__members__`` and ``__dir__()``.
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If you used ``LazyObject`` in your own code, and implemented the
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``get_all_members()`` method for wrapped objects, you need to make the following
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changes:
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* If your class does not have special requirements for introspection (i.e. you
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have not implemented ``__getattr__()`` or other methods that allow for
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attributes not discoverable by normal mechanisms), you can simply remove the
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``get_all_members()`` method. The default implementation on ``LazyObject``
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will do the right thing.
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* If you have more complex requirements for introspection, first rename the
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``get_all_members()`` method to ``__dir__()``. This is the standard method,
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from Python 2.6 onwards, for supporting introspection. If you are require
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support for Python < 2.6, add the following code to the class::
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__members__ = property(lambda self: self.__dir__())
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.. _deprecated-features-1.2:
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Features deprecated in 1.2
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==========================
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None.
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What's new in Django 1.2
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========================
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CSRF support
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------------
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Django now has much improved protection against :ref:`Cross-Site
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Request Forgery (CSRF) attacks<ref-contrib-csrf>`. This type of attack
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occurs when a malicious Web site contains a link, a form button or
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some javascript that is intended to perform some action on your Web
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site, using the credentials of a logged-in user who visits the
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malicious site in their browser. A related type of attack, 'login
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CSRF', where an attacking site tricks a user's browser into logging
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into a site with someone else's credentials, is also covered.
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Email Backends
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--------------
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You can now :ref:`configure the way that Django sends email
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<topic-email-backends>`. Instead of using SMTP to send all email, you
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can now choose a configurable email backend to send messages. If your
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hosting provider uses a sandbox or some other non-SMTP technique for
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sending mail, you can now construct an email backend that will allow
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Django's standard :ref:`mail sending methods<topics-email>` to use
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those facilities.
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This also makes it easier to debug mail sending - Django ships with
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backend implementations that allow you to send email to a
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:ref:`file<topic-email-file-backend>`, to the
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:ref:`console<topic-email-console-backend>`, or to
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:ref:`memory<topic-email-memory-backend>` - you can even configure all
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email to be :ref:`thrown away<topic-email-console-backend>`.
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