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Zope2 application server / web framework

Project description

.. contents::

Introduction
============

Zope2 is an open-source web application server.

This document provides some general information about Zope2 and provides
links to other documents.

Installation information can be found in ``doc/INSTALL.rst``. Other
documentation is also in the "doc" directory and in the zope.org
documentation section at http://docs.zope.org/ .

General Zope information is available at http://www.zope.org/

Installation
============

Follow the instructions in ``doc/INSTALL.rst`` to install Zope.

License
=======

The Zope License is included in ``ZopePublicLicense.txt``. Send your
feedback about the license to zope-dev@zope.org.

Bug tracker
===========

Bugs reports should be made through the Zope bugtracker at
https://bugs.launchpad.net/zope2. A bug report should contain detailed
information about how to reproduce the bug, error messages (see
``/error_log`` within the ZMI or ``var/event.log``).

Mailing list
============

You can contact and discuss Zope2 on the Zope mailing list (zope@zope.org).
To subscribe to the list send mail to zope-request@zope.org with ``subscribe``
in the subject line.

You can also subscribe online from here:
http://mail.zope.org/mailman/listinfo/zope

Changelog
=========

This file contains change information for the current Zope release.
Change information for previous versions of Zope can be found at
http://docs.zope.org/zope2/releases/.

2.12.19 (2011-06-28)
--------------------

Bugs Fixed
++++++++++

- Fixed a serious privilege escalation issue. For more information see:
http://plone.org/products/plone/security/advisories/20110622

Features
++++++++

- Updated distributions:

- Acquisition = 2.13.8


2.12.18 (2011-05-08)
--------------------

Features
++++++++

- Updated distributions:

- zope.sendmail = 3.5.3

2.12.17 (2011-04-03)
--------------------

Bugs Fixed
++++++++++

- Corrected copyright information shown in the ZMI.

Features
++++++++

- Updated distributions:

- Acquisition = 2.13.7
- distribute = 0.6.15
- docutils = 0.7
- python-gettext = 1.1.1
- pytz = 2011e
- transaction = 1.0.1

2.12.16 (2011-02-23)
--------------------

Bugs Fixed
++++++++++

- LP #713820: Remove docstrings from various methods in ZCatalog, as they
shouldn't be web-publishable.

Features
++++++++

- Updated distributions:

- Acquisition = 2.13.6

2.12.15 (2011-02-06)
--------------------

Bugs Fixed
++++++++++

- LP #713253: Prevent publication of acquired attributes, where the acquired
object does not have a docstring.

- Fix `LazyMap` to avoid unnecessary function calls.

2.12.14 (2010-12-07)
--------------------

Bugs Fixed
++++++++++

- Fixed argument parsing for entrypoint based zopectl commands.

- Fixed the usage of ``pstats.Stats()`` output stream. The
`Control_Panel/DebugInfo/manage_profile` ZMI view was broken in Python 2.5+.

- Use cProfile where possible for the `Control_Panel/DebugInfo/manage_profile`
ZMI view.

2.12.13 (2010-11-06)
--------------------

Bugs Fixed
++++++++++

- Fixed Chameleon compatibility in `ptEdit.zpt` of `Products.PageTemplates`.

Features Added
++++++++++++++

- LP #659968: Added support for level argument to the ``__import__`` function
as introduced in Python 2.5. Currently only level=-1 is supported.

- Updated distributions:

- DateTime = 2.12.6

2.12.12 (2010-10-02)
--------------------

Bugs Fixed
++++++++++

- Adjusted overflow logic in DateIndex and DateRangeIndex to work with latest
ZODB 3.9.7.

- Fixed ``testZODBCompat`` tests in ZopeTestCase to match modern ZODB
semantics.

- Fixed unit test that failed on fast Windows machines.

- Fixed OverflowError in Products.ZCatalog.Lazy on 64bit Python on Windows.

- LP #642728: Fixed TypeError on nested multi part messages in MailHost.

Features Added
++++++++++++++

- Add ability to define extra zopectl commands via setuptools entrypoints.

- Updated distributions:

- Acquisition = 2.13.5
- distribute = 0.6.14
- lxml = 2.2.8
- z3c.checkversions = 0.4.1
- zc.buildout = 1.4.4
- zc.recipe.testrunner = 1.2.1
- ZODB3 = 3.9.7
- zope.app.error = 3.5.3
- zope.app.interface = 3.5.2
- zope.app.locales = 3.6.2
- zope.app.session = 3.6.2
- zope.deferredimport = 3.5.3
- zope.i18n = 3.7.4
- zope.i18nmessageid = 3.5.3
- zope.index = 3.6.1
- zope.lifecycleevent = 3.6.2
- zope.pagetemplate = 3.5.2
- zope.principalregistry = 3.7.1
- zope.proxy = 3.6.1
- zope.security = 3.7.4
- zope.sendmail = 3.5.2
- zope.session = 3.9.3

2.12.11 (2010-09-09)
--------------------

Bugs Fixed
++++++++++

- BasicUserFolder and SiteErrorLog: Don't raise string exceptions.

Features Added
++++++++++++++

- LP #193122: New method getVirtualRoot added to the Request class.

- Added forward-compatibility shims for some frequently used modules moved in
Zope 2.13.

- Updated packages:

- Acquisition = 2.13.4
- DateTime = 2.12.5
- Products.ZSQLMethods = 2.13.3

2.12.10 (2010-07-20)
--------------------

Bugs Fixed
++++++++++

- Fix support for non-public permission attributes in the
browser:view directive so that attributes which are not included in
allowed_interface or allowed_attributes but which have declarations from a
base class's security info don't get their security overwritten to be
private.

- LP #143755: Also catch TypeError when trying to determine an
indexable value for an object in PluginIndexes.common.UnIndex

- LP #143533: Instead of showing "0.0.0.0" as the SERVER_NAME
request variable when no specific listening IP is configured for
the HTTP server, do a socket lookup to show the current server's
fully qualified name.

- LP #143722: Added missing permission to ObjectManager.manage_hasId,
which prevented renaming files and folders via FTP.

- LP #143564: Request.resolve_url did not correctly re-raise
exceptions encountered during path traversal.

- LP #143273: Enable the dtml-var modifiers url_quote, url_unquote,
url_quote_plus and url_unquote_plus to handle unicode strings.

Features Added
++++++++++++++

- Warn when App.ImageFile.ImageFile receives a relative path with no prefix,
and then has to assume the path to be relative to "software home". This
behaviour is deprecated as packages can be factored out to their own
distribution, making the "software home" relative path meaningless.

2.12.9 (2010-07-13)
-------------------

Bugs Fixed
++++++++++

- Avoid problems in removing cache managers introduced in Zope 2.12.8.

- LP #143531: Fix broken object so they give access to their state.

- LP #578326: Add support for non-public permission attributes in the
browser:view directive.

Features Added
++++++++++++++

- Factored out the `Products.ZSQLMethods` into its own distribution. The
distribution also includes the `Shared.DC.ZRDB` code. The code is no longer
included in Zope 2.13. If you rely on it, please specify a dependency on
the new `Products.ZSQLMethods` distribution. This will only work for code
that requires at least Zope 2.12.9.

- Made both `Shared` and `Shared.DC` namespace packages.

- Updated packages:

- DateTime = 2.12.4

2.12.8 (2010-06-25)
-------------------

Bugs Fixed
++++++++++

- LP #597594: Performance optimization in OFS.subscriber.maybeWarnDeprecated.

- LP #143639: When the last cache manager in a container is deleted, we need to
remove all traces of it from the container.

- LP #143619: Make sure to remove a RAMCache's contents when the ZODB object is
removed.

- LP #143403: Prevent accidental acquisition of objectValues during recursive
ownership changes when the changed object has no objectValues method.

- LP #374818: Use module-provided functions as opposed to the old
"folder methods" when creating folders and user folders in ZopeTestCase.

- LP #143946: Provide a more informative error message when a WebDAV PUT fails.

Features Added
++++++++++++++

- Updated packages:

- ExtensionClass = 2.13.2
- Missing = 2.13.1
- Persistence = 2.13.2
- Sphinx = 0.6.7

- Added ``setSortKey()`` method to the ``Shared.DC.ZRDB.TM.TM`` class to allow
database connections to specify the commit order without needing to override
the ``sortKey()`` method.

2.12.7 (2010-06-13)
-------------------

Bugs Fixed
++++++++++

- LP #142535: Fix faulty docstring for manage_changeProperties which
incorrectly suggested that passing a simple dictionary as REQUEST
argument was supported.

- LP #583702: Fixed regression in mailhost queue processor code introduced
in 2.12.6 in the LP #574286 changes.

- Handle Unauthorized exceptions in xmlrpc correctly.

- Five's processInputs() would stomp on :list or :tuple values that contained
ints or other non-strings, would clear out :records entirely, and would not
do anything for :record fields.

- LP #143261: The (very old-fashioned) Zope2.debug interactive request
debugger still referred to the toplevel module ``Zope``, which was
renamed to ``Zope2`` a long time ago.

- LP #142874: Naming objects ``URL`` or ``URL1`` broke several ZMI
views.

- LP #142878: Remove URL-based suppression of access rules and site root
objects. Suppression using ``os.environ`` still works.

- LP #143144: Fix documentation for the zope.conf ``mount-point``
directive.

- LP #142410: Do not index documents in a KeywordIndex if the document
is missing the indexed attribute, if determining the value raises
AttributeError, or if the indexed attribute is empty.

- LP #142590: The ``DTMLMethod`` and ``DTMLDocument`` ``manage_edit``
methods could not deal with ``TaintedString`` instances. Removed the
entirely redundant ``DTMLDocument.manage_edit`` method at the same time.

- LP #142451: If non-recursive ownership changes are made using
``changeOwnership``, do not touch any children.

- LP #142750 and LP #142481: To prevent confusion when choosing an Id and
to avoid issues when creating two VirtualHostMonsters in the same
container the VirtualHostMoster now has a default Id. It can no longer
be selected, and the intermediary Add view is gone.

Features Added
++++++++++++++

- Updated packages:

- distribute = 0.6.13
- five.formlib = 1.0.3
- lxml = 2.2.6
- Sphinx = 0.6.6
- tempstorage = 2.11.3
- zope.app.apidoc = 3.6.6
- zope.app.applicationcontrol = 3.5.1
- zope.app.authentication = 3.6.1
- zope.app.i18n = 3.6.2
- zope.app.intid = 3.7.1
- zope.app.wsgi = 3.6.1
- zope.contenttype = 3.4.3
- zope.container = 3.8.3
- zope.deferredimport = 3.5.2
- zope.intid = 3.7.2
- zope.principalannotation = 3.6.1

- Update Five's testbrowser to support both mechanize 0.1.x and 0.2.x.

- LP #142226: Added an extra keyword argument to the HTTPResponse
setCookie method to suppress enclosing the cookie value field
in double quotes.

2.12.6 (2010-05-17)
-------------------

Restructuring
+++++++++++++

- Removed Zope2's own mkzeoinstance script in favor of the version from the
new zope.mkzeoinstance package.

Features Added
++++++++++++++

- Updated packages:

- DateTime = 2.12.2
- distribute = 0.6.12
- ExtensionClass = 2.13.1
- initgroups = 2.13.0
- Missing = 2.13.0
- MultiMapping = 2.13.0
- Persistence = 2.13.1
- pytz = 2010h
- Record = 2.13.0
- RestrictedPython = 3.5.2
- ThreadLock = 2.13.0
- ZODB3 = 3.9.5
- zope.app.locales = 3.6.1
- zope.authentication = 3.7.1
- zope.browser = 1.3
- zope.cachedescriptors = 3.5.1
- zope.deferredimport = 3.5.1
- zope.i18n = 3.7.3
- zope.i18nmessageid = 3.5.2
- zope.lifecycleevent = 3.6.1
- zope.pagetemplate = 3.5.1
- zope.proxy = 3.6.0
- zope.security = 3.7.3

Bugs Fixed
++++++++++

- LP #142563: Fix ``AccessControl.User.NullUnrestrictedUserTests.__str__``.

- Fix several template errors in SiteErrorLog (chameleon compatibility).

- LP #267820: Fix bad except clause in the ``sequence_sort`` method of
the ``<dtml-in>`` tag.

- LP #351006: Don't nest block tags inside HTML ``<p>`` tags in
``zExceptions.ExceptionFormatter``.

- LP #411837: Handle resource files with ``.htm`` extension properly,
as page template resources.

- LP #435728: Fix indentation of OFSP/help/sequence.py docstring.

- LP #574286: Ensure that mailhosts which share a queue directory do not
double-deliver mails, by sharing the thread which processes emails for
that directory.

- BaseRequest: Fixed handling of errors in 'traverseName'.

2.12.5 (2010-04-24)
-------------------

Features Added
++++++++++++++

- Updated packages:

- Acquisition = 2.13.3
- distribute = 0.6.10
- roman = 1.4.0
- zope.annotation = 3.5.0
- zope.app.cache = 3.6.0
- zope.app.dav = 3.5.1
- zope.app.i18n = 3.6.1
- zope.app.localpermission = 3.7.2
- zope.app.principalannotation = 3.7.0
- zope.app.publication = 3.8.1
- zope.app.publisher = 3.8.4
- zope.app.renderer = 3.5.1
- zope.app.security = 3.7.3
- zope.app.session = 3.6.1
- zope.app.testing = 3.7.3
- zope.app.wsgi = 3.6.0
- zope.app.zapi = 3.4.1
- zope.broken = 3.6.0
- zope.catalog = 3.8.1
- zope.formlib = 3.7.0
- zope.i18nmessageid = 3.5.1
- zope.index = 3.6.0
- zope.keyreference = 3.6.2
- zope.lifecycleevent = 3.6.0
- zope.location = 3.6.0
- zope.minmax = 1.1.2
- zope.securitypolicy = 3.6.1
- zope.viewlet = 3.6.1

- Downgrade the ``manage_* is discouraged. You should use event subscribers
instead`` warnings to debug level logging. This particular warning hasn't
motivated anyone to actually change any code.

- Use the standard libraries doctest module in favor of the deprecated version
in zope.testing.

- LP #143013: make the maximum number of retries on ConflictError a
configuration option.

Bugs Fixed
++++++++++

- HTTPResponse: Fixed handling of exceptions with unicode values.

- zExceptions: Fixed some unicode issues in Unauthorized.

- LP #372632, comments #15ff.: Fixed regression in Unauthorized handling.

- LP #563229: Process "evil" JSON cookies which contain double quotes in
violation of RFC 2965 / 2616.

- Document ``Products.PluginIndexes.PathIndex.PathIndex.insertEntry`` as
an API for use by subclasses.

- Fixed regression introduced in the resource directory fix in 2.12.4.

- LP #143655: don't prevent sorting using a path index.

- LP #142478: normalize terms passed to ``PLexicon.queryLexicon`` using
the lexicon's pipeline (e.g., case flattening, stop word removal, etc.)

- Wrap exception views in the context of the published object.

2.12.4 (2010-04-05)
-------------------

Restructuring
+++++++++++++

- Removed unmaintained build scripts for full Windows installers and
``configure / make`` type builds.

- Updated copyright and license information to conform with repository policy.

- Factored out ZopeUndo package into a separate distribution.

Features Added
++++++++++++++

- Updated packages:

- Acquisition = 2.13.2
- ExtensionClass = 2.13.0
- Persistence = 2.13.0
- pytz = 2010b

- There is now an event ZPublisher.interfaces.IPubBeforeStreaming which will
be fired just before the first chunk of data is written to the response
stream when using the write() method on the response. This is the last
possible point at which response headers may be set in this case.

Bugs Fixed
++++++++++

- LP #142430: Avoid using the contexts title_or_id method in the
standard_error_message.

- LP #257675: request.form contained '-C':'' when no QUERY_STRING was in
the environment.

- Zope 3-style resource directories would throw an Unauthorized error when
trying to use restrictedTraverse() to reach a resource in a sub-directory
of the resource directory.

- Restore ability to traverse to 'macros' on template-based browser views.

- Protect ZCTextIndex's clear method against storing Acquisition wrappers.

- LP #195761: fixed ZMI XML export / import and restored it to the UI.

- MailHost should fall back to HELO when EHLO fails.

2.12.3 (2010-01-12)
-------------------

Bugs Fixed
++++++++++

- LP #491224: proper escaping of rendered error message

- LP #246983: Enabled unicode conflict resolution on variables inside "string:"
expressions in TALES.

- Fixed possible TypeError while sending multipart emails.

- Also look for ZEXP imports within the clienthome directory. This
provides a place to put imports that won't be clobbered by buildout
in a buildout-based Zope instance.

- Fixed a SyntaxError in utilities/load_site.py script.

Features Added
++++++++++++++

- Made OFS.Image.File and OFS.Image.Image send IObjectModifiedEvent when
created through their factories and modified through the ZMI forms
(manage_edit() and manage_upload()).

- Moved zope.formlib / zope.app.form integration into a separate package
called five.formlib.

2.12.2 (2009-12-22)
-------------------

Features Added
++++++++++++++

- Updated packages:

- ZODB3 = 3.9.4
- docutils = 0.6
- pytz = 2009r
- zope.dottedname = 3.4.6
- zope.i18n = 3.7.2
- zope.interface = 3.5.3
- zope.minmax = 1.1.1
- zope.security = 3.7.2
- zope.session = 3.9.2
- zope.tal = 3.5.2

- Enhanced the internals of the DateRangeIndex based on an idea from
experimental.daterangeindexoptimisations, thanks to Matt Hamilton.

- Updated the default value for ``management_page_charset`` from iso-8859-1
to the nowadays more standard utf-8.

- Added IPubBeforeAbort event to mirror IPubBeforeCommit in failure scenarios.
This event is fired just before IPubFailure, but, crucially, while the
transaction is still open.

- Include bytes limited cache size in the cache parameters ZMI screen.

- Officially supporting Python 2.6 only (with inofficial support for
Python 2.5) but dropping any support and responsibility for
Python 2.4.

Bugs Fixed
++++++++++

- LP #143444: add labels to checkboxes / radio buttons on import /
export form.

- LP #496941: Remove all mention of ``standard_html_header`` and
``standard_html_footer`` from default DTML content.

- Fixed a regression in Products.PageTemplates that meant filesystem templates
using Products.Five.browser.pagetemplatefile would treat TALES path
expressions (but not python expressions) as protected code and so attempt
to apply security. See original issue here:
http://codespeak.net/pipermail/z3-five/2007q2/002185.html

- LP #491249: fix tabindex on ZRDB connection test form.

- LP #490514: preserve tainting when calling into DTML from ZPT.

- Avoid possible errors on test tear-down in Products.Five.fiveconfigure's
cleanUp() function if Products.meta_types has not been set

2.12.1 (2009-11-02)
-------------------

Features Added
++++++++++++++

- Updated packages:

- ZODB3 = 3.9.3 (fixes bug where blob conflict errors hung commits)
- Acquisition = 2.12.4 (fixes problems with iteration support)
- setuptools = 0.6c11

- LP #411732: Silence security declaration warnings for context and request
on views protected by an interface.

- Assorted documentation cleanups, including a script to rebuild HTML
documentation on Windows.

- Refactored Windows Service support to not need or use zopeservice.py
in instances. This makes buildout-based instances work on Windows.

Bugs Fixed
++++++++++

- LP #440490: zopectl fg|adduser|run|debug now work on Windows.

- LP #443005: zopectl stop works once more on Windows.

- LP #453723: zopectl start works again on non-Windows platforms.

2.12.0 (2009-10-01)
-------------------

Features Added
++++++++++++++

- Updated packages:

- ZODB3 = 3.9.0

- Backported clone of ``ZopeVocabularyRegistry`` from ``zope.app.schema``, and
sane registration of it during initialization of Five product.

Bugs Fixed
++++++++++

- Backported removal of experimental support for configuring the Twisted HTTP
server as an alternative to ``ZServer``.

- Backported fix for timezone issues in date index tests from trunk.

- LP #414757 (backported from Zope trunk): don't emit a IEndRequestEvent when
clearing a cloned request.

2.12.0c1 (2009-09-04)
---------------------

Features Added
++++++++++++++

- Updated packages:

- Acquisition = 2.12.3
- pytz = 2009l
- tempstorage = 2.11.2
- transaction = 1.0.0
- ZODB3 = 3.9.0c3
- zope.app.basicskin = 3.4.1
- zope.app.form = 3.8.1
- zope.component = 3.7.1
- zope.copypastemove = 3.5.2
- zope.i18n = 3.7.1
- zope.security = 3.7.1

Bugs Fixed
++++++++++

- Made the version information show up again, based on pkg_resources
distribution information instead of the no longer existing version.txt.

2.12.0b4 (2008-08-06)
---------------------

Features Added
++++++++++++++

- The send method of MailHost now supports unicode messages and
email.Message.Message objects. It also now accepts charset and
msg_type parameters to help with character, header and body
encoding.

- Updated packages:

- ZODB3 = 3.9.0b5
- zope.testing = 3.7.7

- scripts: Added 'runzope' and 'zopectl' as entry points for instance scripts.

Bugs Fixed
++++++++++

- LP #418454: FTP server did not work with Python 2.6.X

- PythonScript: Fixed small Python 2.6 compatibility issue.

- mkzopeinstance: Made instance scripts more suitable for egg based installs.
If you are using a customized skel, it has to be updated.

- Five: Fixed the permissions creation feature added in Zope 2.12.0a2.

- LP #399633: fixed interpreter paths

- MailHost manage form no longer interprets the value None as a string
in user and password fields.

2.12.0b3 (2009-07-15)
---------------------

Features Added
++++++++++++++

- Updated packages:

- ZConfig = 2.7.1
- ZODB = 3.9.0b2
- pytz = 2009j
- zope.app.component = 3.8.3
- zope.app.pagetemplate = 3.7.1
- zope.app.publisher = 3.8.3
- zope.app.zcmlfiles = 3.5.5
- zope.contenttype = 3.4.2
- zope.dublincore = 3.4.3
- zope.index = 3.5.2
- zope.interface = 3.5.2
- zope.testing = 3.7.6
- zope.traversing = 3.7.1

- Added support to indexing datetime values to the PluginIndexes
DateRangeIndex. The DateIndex already had this feature.

Restructuring
+++++++++++++

- PluginIndexes: Removed deprecated TextIndex.

- HelpSys now uses ZCTextIndex instead of the deprecated TextIndex. Please
update your Zope databases by deleting the Product registrations in the
Control Panel and restarting Zope.

Bugs Fixed
++++++++++

- LP #397861: exporting $PYTHON in generated 'zopectl' for fixing import issue
with "bin/zopectl adduser"

- PluginIndexes: Added 'indexSize' to IPluggableIndex.

- HelpSys: ProductHelp no longer depends on PluginIndexes initialization.

- App.Product: ProductHelp was broken since Zope 2.12.0a1.

- ObjectManagerNameChooser now also works with BTreeFolder2.

- Correctly handle exceptions in the ZPublisherExceptionHook.

2.12.0b2 (2009-05-27)
---------------------

Restructuring
+++++++++++++

- Removed all use of ``zope.app.pagetemplate`` by cloning / simplifying
client code.

- Use ``zope.pagetemplate.engine`` instead of ``zope.app.pagetemplate.engine``.
(update to versions 3.5.0 and 3.7.0, respectively, along with version 3.8.1
of ``zope.app.publisher``).

- Use ``IBrowserView`` interface from ``zope.browser.interfaces``, rather than
``zope.publisher.interfaces.browser``.

- Use ``IAdding`` interface from ``zope.browser.interfaces``, rather than
``zope.app.container``.

- No longer depend on ``zope.app.appsetup``; use the event implementations
from ``zope.processlifetime`` instead.

Features Added
++++++++++++++

- zExceptions.convertExceptionType: new API, breaking out conversion of
exception names to exception types from 'upgradeException'.

- Launchpad #374719: introducing new ZPublisher events:
PubStart, PubSuccess, PubFailure, PubAfterTraversal and PubBeforeCommit.

- Testing.ZopeTestCase: Include a copy of ZODB.tests.warnhook to silence
a DeprecationWarning under Python 2.6.

- Updated packages:

* python-gettext 1.0
* pytz 2009g
* zope.app.applicationcontrol = 3.5.0
* zope.app.appsetup 3.11
* zope.app.component 3.8.2
* zope.app.container 3.8.0
* zope.app.form 3.8.0
* zope.app.http 3.6.0
* zope.app.interface 3.5.0
* zope.app.pagetemplate 3.6.0
* zope.app.publication 3.7.0
* zope.app.publisher 3.8.0
* zope.browser 1.2
* zope.component 3.7.0
* zope.componentvocabulary 1.0
* zope.container 3.8.2
* zope.formlib 3.6.0
* zope.lifecycleevent 3.5.2
* zope.location 3.5.4
* zope.processlifetime 1.0
* zope.publisher 3.8.0
* zope.security 3.7.0
* zope.testing 3.7.4
* zope.traversing 3.7.0

Bugs Fixed
++++++++++

- Launchpad #374729: Encoding cookie values to avoid issues with
firewalls and security proxies.

- Launchpad #373583: ZODBMountPoint - fixed broken mount support and
extended the test suite.

- Launchpad #373621: catching and logging exceptions that could cause
leaking of worker threads.

- Launchpad #373577: setting up standard logging earlier within the startup
phase for improving the analysis of startup errors.

- Launchpad #373601: abort transaction before connection close in order to
prevent connection leaks in case of persistent changes after the main
transaction is closed.

- Fix BBB regression which prevented setting browser ID cookies from
browser ID managers created before the ``HTTPOnly`` feature landed.
https://bugs.launchpad.net/bugs/374816

- RESPONSE.handle_errors was wrongly set (to debug, should have been
``not debug``). Also, the check for exception constructor arguments
didn't account for exceptions that didn't override the ``__init__``
(which are most of them). The combination of those two problems
caused the ``standard_error_message`` not to be called. Fixes
https://bugs.launchpad.net/zope2/+bug/372632 .

- DocumentTemplate.DT_Raise: use new 'zExceptions.convertExceptionType'
API to allow raising non-builtin exceptions.
Fixes https://bugs.launchpad.net/zope2/+bug/372629 , which prevented
viewing the "Try" tab of a script with no parameters.

2.12.0b1 (2009-05-06)
---------------------

Restructuring
+++++++++++++

- No longer depend on ``zope.app.locales``. Zope2 uses almost none of the
translations provided in the package and is not required for most projects.
The decision to include locales is left to the application developer now.

- Removed the dependency on ``zope.app.testing`` in favor of providing a more
minimal placeless setup as part of ZopeTestCase for our own tests.

- updated to ZODB 3.9.0b1

Features Added
++++++++++++++
- zExceptions.convertExceptionType: new API, breaking out conversion of
exception names to exception types from ``upgradeException``.

- Extended BrowserIdManager to expose the ``HTTPOnly`` attribute for its
cookie. Also via https://bugs.launchpad.net/zope2/+bug/367393 .

- Added support for an optional ``HTTPOnly`` attribute of cookies (see
http://www.owasp.org/index.php/HTTPOnly). Patch from Stephan Hofmockel,
via https://bugs.launchpad.net/zope2/+bug/367393 .

Bugs Fixed
++++++++++

- ZPublisher response.setBody: don't append Accept-Encoding to Vary header if
it is already present - this can make cache configuration difficult.

2.12.0a4 (2009-04-24)
---------------------

Bugs Fixed
++++++++++

- fixed versions.cfg in order to support zope.z2release for
creating a proper index structure

2.12.0a3 (2009-04-19)
---------------------

The generated tarball for the 2.12.0a2 source release was incomplete, due to
a setuptools and Subversion 1.6 incompatibility.

Restructuring
+++++++++++++

- Added automatic inline migration for databases created with older Zope
versions. The ``Versions`` screen from the ``Control_Panel`` is now
automatically removed on Zope startup.

- Removed more unused code of the versions support feature including the
Globals.VersionNameName constant.

2.12.0a2 (2009-04-19)
---------------------

Restructuring
+++++++++++++

- If the <permission /> ZCML directive is used to declare a permission that
does not exist, the permission will now be created automatically, defaulting
to being granted to the Manager role only. This means it is possible to
create new permissions using ZCML only. The permission will Permissions that
already exist will not be changed.

- Using <require set_schema="..." /> or <require set_attributes="..." /> in
the <class /> directive now emits a warning rather than an error. The
concept of protecting attribute 'set' does not exist in Zope 2, but it
should be possible to re-use packages that do declare such protection.

- Updated to Acquisition 2.12.1.

- Updated to DateTime 2.12.0.

- Updated to ZODB 3.9.0a12.

- Removed the ``getPackages`` wrapper from setup.py which would force all
versions to an exact requirement. This made it impossible to require
newer versions of the dependencies. This kind of KGS information needs
to be expressed in a different way.

- removed ``extras_require`` section from setup.py (this might possibly
break legacy code).

Bugs Fixed
++++++++++

- Launchpad #348223: optimize catalog query by breaking out early from loop
over indexes if the result set is already empty.

- Launchpad #344098: in ``skel/etc/zope.conf.ing``, replaced commented-out
``read-only-database`` option, which is deprecated, with pointers to the
appropos sections of ZODB's ``component.xml``. Updated the description
of the ``zserver-read-only-mode`` directive to indicate its correct
semantics (suppressing log / pid / lock files). Added deprecation to the
``read-only-database`` option, which has had no effect since Zope 2.6.

- "Permission tab": correct wrong form parameter for
the user-permission report

- PageTemplates: Made PreferredCharsetResolver work with new kinds of contexts
that are not acquisition wrapped.

- Object managers should evaluate to True in a boolean test.

2.12.0a1 (2009-02-26)
---------------------

Restructuring
+++++++++++++

- Switched Products.PageTemplates to directly use zope.i18n.translate and
removed the GlobalTranslationService hook.

- Removed bridging code from Product.Five for PlacelessTranslationService
and Localizer. Neither of the two is actually using this anymore.

- Removed the specification of ``SOFTWARE_HOME`` and ``ZOPE_HOME`` from the
standard instance scripts.
[hannosch]

- Made the specification of ``SOFTWARE_HOME`` and ``ZOPE_HOME`` optional. In
addition ``INSTANCE_HOME`` is no longer required to run the tests of a
source checkout of Zope.

- Removed the ``test`` command from zopectl. The test.py script it was relying
on does no longer exist.

- Updated to ZODB 3.9.0a11. ZODB-level version support has been
removed and ZopeUndo now is part of Zope2.

- The Zope2 SVN trunk is now a buildout pulling in all dependencies as
actual released packages and not SVN externals anymore.

- Make use of the new zope.container and zope.site packages.

- Updated to newer versions of zope packages. Removed long deprecated
layer and skin ZCML directives.

- Disabled the XML export on the UI level - the export functionality
however is still available on the Python level.

- No longer show the Help! links in the ZMI, if there is no help
available. The help system depends on the product registry.

- Updated the quick start page and simplified the standard content.
The default index_html is now a page template.

- Removed deprecated Draft and Version support from Products.OFSP.
Also removed version handling from the control panel. Versions are
no longer supported on the ZODB level.

- Removed left-overs of the deprecated persistent product distribution
mechanism.

- The persistent product registry is not required for starting Zope
anymore. ``enable-product-installation`` can be set to off if you don't
rely on the functionality provided by the registry.

- ZClasses have been deprecated for two major releases. They have been
removed in this version of Zope.

- Avoid deprecation warnings for the md5 and sha modules in Python 2.6
by adding conditional imports for the hashlib module.

- Replaced imports from the 'Globals' module throughout the
tree with imports from the actual modules; the 'Globals' module
was always intended to be an area for shared data, rather than
a "facade" for imports. Added zope.deferred.deprecation entries
to 'Globals' for all symbols / modules previously imported directly.

- Protect against non-existing zope.conf path and products directories.
This makes it possible to run a Zope instance without a Products or
lib/python directory.

- Moved exception MountedStorageError from ZODB.POSExceptions
to Products.TemporaryFolder.mount (now its only client).

- Moved Zope2-specific module, ZODB/Mount.py, to
Products/TemporaryFolder/mount.py (its only client is
Products/TemporaryFolder/TemporaryFolder.py).

- Removed spurious import-time dependencies from
Products/ZODBMountPoint/MountedObject.py.

- Removed Examples.zexp from the skeleton. The TTW shopping cart isn't
any good example of Zope usage anymore.

- Removed deprecated ZTUtil.Iterator module

- Removed deprecated StructuredText module

- Removed deprecated TAL module

- Removed deprecated modules from Products.PageTemplates.

- Removed deprecated ZCML directives from Five including the whole
Five.site subpackage.

Features added
++++++++++++++

- OFS.ObjectManager now fully implements the zope.container.IContainer
interface. For the last Zope2 releases it already claimed to implement the
interface, but didn't actually full-fill the interface contract. This means
you can start using more commonly used Python idioms to access objects
inside object managers. Complete dictionary-like access and container
methods including iteration are now supported. For each class derived from
ObjectManager you can use for any instance om: ``om.keys()`` instead of
``om.objectIds()``, ``om.values()`` instead of ``om.objectValues()``, but
also ``om.items()``, ``ob.get('id')``, ``ob['id']``, ``'id' in om``,
``iter(om)``, ``len(om)``, ``om['id'] = object()`` instead of
``om._setObject('id', object())`` and ``del ob['id']``. Should contained
items of the object manager have ids equal to any of the new method names,
the objects will override the method, as expected in Acquisition enabled
types. Adding new objects into object managers by those new names will no
longer work, though. The added methods call the already existing methods
internally, so if a derived type overwrote those, the new interface will
provide the same functionality.

- Acquisition has been made aware of ``__parent__`` pointers. This allows
direct access to many Zope 3 classes without the need to mixin
Acquisition base classes for the security to work.

- MailHost: now uses zope.sendmail for delivering the mail. With this
change MailHost integrates with the Zope transaction system (avoids
sending dupe emails in case of conflict errors). In addition
MailHost now provides support for asynchronous mail delivery. The
'Use queue' configuration option will create a mail queue on the
filesystem (under 'Queue directory') and start a queue thread that
checks the queue every three seconds. This decouples the sending of
mail from its delivery. In addition MailHosts now supports
encrypted connections through TLS/SSL.

- SiteErrorLog now includes the entry id in the information copied to
the event log. This allowes you to correlate a user error report with
the event log after a restart, or let's you find the REQUEST
information in the SiteErrorLog when looking at a traceback in the
event log.

Bugs Fixed
++++++++++

- Launchpad #332168: Connection.py: do not expose DB connection strings
through exceptions

- Specified height/width of icons in ZMI listings so the table doesn't
jump around while loading.

- After the proper introduction of parent-pointers, it's now
wrong to acquisition-wrap content providers. We will now use
the "classic" content provider expression from Zope 3.

- Ported c69896 to Five. This fix makes it possible to provide a
template using Python, and not have it being set to ``None`` by
the viewlet manager directive.

- Made Five.testbrowser compatible with mechanize 0.1.7b.

- Launchpad #280334: Fixed problem with 'timeout'
argument/attribute missing in testbrowser tests.

- Launchpad #267834: proper separation of HTTP header fields
using CRLF as requested by RFC 2616.

- Launchpad #257276: fix for possible denial-of-service attack
in PythonScript when passing an arbitrary module to the encode()
or decode() of strings.

- Launchpad #257269: 'raise SystemExit' with a PythonScript could shutdown
a complete Zope instance

- Switch to branch of 'zope.testbrowser' external which suppresses
over-the-wire tests.

- Launchpad #143902: Fixed App.ImageFile to use a stream iterator to
output the file. Avoid loading the file content when guessing the
mimetype and only load the first 1024 bytes of the file when it cannot
be guessed from the filename.

- Changed PageTemplateFile not to load the file contents on Zope startup
anymore but on first access instead. This brings them inline with the
zope.pagetemplate version and speeds up Zope startup.

- Collector #2278: form ':record' objects did not implement enough
of the mapping protocol.

- "version.txt" file was being written to the wrong place by the
Makefile, causing Zope to report "unreleased version" even for
released versions.

- Five.browser.metaconfigure.page didn't protect names from interface
superclasses (http://www.zope.org/Collectors/Zope/2333)

- DAV: litmus "notowner_modify" tests warn during a MOVE request
because we returned "412 Precondition Failed" instead of "423
Locked" when the resource attempting to be moved was itself
locked. Fixed by changing Resource.Resource.MOVE to raise the
correct error.

- DAV: litmus props tests 19: propvalnspace and 20:
propwformed were failing because Zope did not strip off the
xmlns: attribute attached to XML property values. We now strip
off all attributes that look like xmlns declarations.

- DAV: When a client attempted to unlock a resource with a token
that the resource hadn't been locked with, in the past we
returned a 204 response. This was incorrect. The "correct"
behavior is to do what mod_dav does, which is return a '400
Bad Request' error. This was caught by litmus
locks.notowner_lock test #10. See
http://lists.w3.org/Archives/Public/w3c-dist-auth/2001JanMar/0099.html
for further rationale.

- When Zope properties were set via DAV in the "null" namespace
(xmlns="") a subsequent PROPFIND for the property would cause the
XML representation for that property to show a namespace of
xmlns="None". Fixed within OFS.PropertySheets.dav__propstat.

- integrated theuni's additional test from 2.11 (see r73132)

- Relaxed requirements for context of
Products.Five.browser.pagetemplatefile.ZopeTwoPageTemplateFile,
to reduce barriers for testing renderability of views which
use them.
(http://www.zope.org/Collectors/Zope/2327)

- PluginIndexes: Fixed 'parseIndexRequest' for false values.

- Collector #2263: 'field2ulines' did not convert empty string
correctly.

- Collector #2198: Zope 3.3 fix breaks Five 1.5 test_getNextUtility

- Prevent ZPublisher from insering incorrect <base/> tags into the
headers of plain html files served from Zope3 resource directories.

- Changed the condition checking for setting status of
HTTPResponse from to account for new-style classes.

- The Wrapper_compare function from tp_compare to tp_richcompare.
Also another function Wrapper_richcompare is added.

- The doc test has been slightly changed in ZPublisher to get
the error message extracted correctly.

- The changes made in Acquisition.c in Implicit Acquisition
comparison made avail to Explicit Acquisition comparison also.

- zopedoctest no longer breaks if the URL contains more than one
question mark. It broke even when the second question mark was
correctly quoted.

Other Changes
+++++++++++++

- Added lib/python/webdav/litmus-results.txt explaining current
test results from the litmus WebDAV torture test.

- DocumentTemplate.DT_Var.newline_to_br(): Simpler, faster
implementation.

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