All adhoc MAC applications have been updated to use HMAC, using SHA1 to
generate unique keys for each application based on the SECRET_KEY, which is
common practice for this situation. In all cases, backwards compatibility
with existing hashes has been maintained, aiming to phase this out as per
the normal deprecation process. In this way, under most normal
circumstances the old hashes will have expired (e.g. by session expiration
etc.) before they become invalid.
In the case of the messages framework and the cookie backend, which was
already using HMAC, there is the possibility of a backwards incompatibility
if the SECRET_KEY is shorter than the default 50 bytes, but the low
likelihood and low impact meant compatibility code was not worth it.
All known instances where tokens/hashes were compared using simple string
equality, which could potentially open timing based attacks, have also been
fixed using a constant-time comparison function.
There are no known practical attacks against the existing implementations,
so these security improvements will not be backported.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@14218 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This monster of a patch is the result of Alex Gaynor's 2009 Google Summer of Code project.
Congratulations to Alex for a job well done.
Big thanks also go to:
* Justin Bronn for keeping GIS in line with the changes,
* Karen Tracey and Jani Tiainen for their help testing Oracle support
* Brett Hoerner, Jon Loyens, and Craig Kimmerer for their feedback.
* Malcolm Treddinick for his guidance during the GSoC submission process.
* Simon Willison for driving the original design process
* Cal Henderson for complaining about ponies he wanted.
... and everyone else too numerous to mention that helped to bring this feature into fruition.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@11952 bcc190cf-cafb-0310-a4f2-bffc1f526a37
There is stub code for backwards compatiblity with Django 1.1 imports.
The documentation has been updated, but has been left in
docs/contrib/csrf.txt for now, in order to avoid dead links to
documentation on the website.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@11661 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This is a large change to CSRF protection for Django. It includes:
* removing the dependency on the session framework.
* deprecating CsrfResponseMiddleware, and replacing with a core template tag.
* turning on CSRF protection by default by adding CsrfViewMiddleware to
the default value of MIDDLEWARE_CLASSES.
* protecting all contrib apps (whatever is in settings.py)
using a decorator.
For existing users of the CSRF functionality, it should be a seamless update,
but please note that it includes DEPRECATION of features in Django 1.1,
and there are upgrade steps which are detailed in the docs.
Many thanks to 'Glenn' and 'bthomas', who did a lot of the thinking and work
on the patch, and to lots of other people including Simon Willison and
Russell Keith-Magee who refined the ideas.
Details of the rationale for these changes is found here:
http://code.djangoproject.com/wiki/CsrfProtection
As of this commit, the CSRF code is mainly in 'contrib'. The code will be
moved to core in a separate commit, to make the changeset as readable as
possible.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@11660 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This is BACKWARDS INCOMPATIBLE if you were using the completely undocumented moderation view from 1.1. That view's been removed in favor of the admin actions.
Thanks, Thejaswi Puthraya.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@11639 bcc190cf-cafb-0310-a4f2-bffc1f526a37
The is a potentially backwards-incompatible change for users already relying on the internals of comment moderaration. To wit:
* The moderation system now listens to the new `comment_will_be_posted`/`comment_was_posted` signals instead of `pre/post_save`. This means that import request-based information is available to moderation as it should be.
* Some experimental code from `django.contrib.comments.moderation` has been removed. It was never intended to be merged into Django, and was completely untested and likely buggy.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@10784 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This began life as (part of) James Bennett's comment-utils app, and was adapted to be part of Django by Thejaswi Puthraya and Jannis Leidel. Thanks, all!
git-svn-id: http://code.djangoproject.com/svn/django/trunk@10122 bcc190cf-cafb-0310-a4f2-bffc1f526a37
Jannis Leidel
Luke Plant
Russell Keith-Magee
Adrian Holovaty
Ramiro Morales
Karen Tracey
Jacob Kaplan-Moss