This ought to have been done in [14218], but although the FormPreview class
was modified, and some tests were added, the crucial lines of code were not
changed (the 'FormPreview.security_hash' method), and tests for the new
behaviour were not added. So it is being changed now. Unlike some of the
other code in that changeset, this does not need to have a compatibility
fallback to cope with existing hashes, because the consequence of a failed
hash is minimal - the user is re-presented with the preview stage of the
form, which will then have a correct hash.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@15952 bcc190cf-cafb-0310-a4f2-bffc1f526a37
Without these checks, it is possible for the tests to pass by virtue of
asserts never being reached for some reason (very possible in this case, due
to handling of security hashes).
git-svn-id: http://code.djangoproject.com/svn/django/trunk@15198 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit adds several new hooks in backwards-compatible way:
* get_initial to specify initial data based on request
* get_auto_id to enable different AUTO_ID values
* get_context for overriding and extending default context contents
git-svn-id: http://code.djangoproject.com/svn/django/trunk@14659 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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 is a BACKWARDS INCOMPATIBLE change, because it removes the flawed
'auto_adapt_to_methods' decorator, and replaces it with 'method_decorator'
which must be applied manually when necessary, as described in the 1.2
release notes.
For users of 1.1 and 1.0, this affects the decorators:
* login_required
* permission_required
* user_passes_test
For those following trunk, this also affects:
* csrf_protect
* anything created with decorator_from_middleware
If a decorator does not depend on the signature of the function it is
supposed to decorate (for example if it only does post-processing of the
result), it will not be affected.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@12399 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
Russell Keith-Magee
Luke Plant
Adrian Holovaty
Jannis Leidel
Ramiro Morales
Alex Gaynor
Honza Král
Jacob Kaplan-Moss
Justin Bronn
Gary Wilson Jr