PluggableAuthService changelog
==============================

PluggableAuthService 1.5.4 (Unreleased)
---------------------------------------

- Launchpad #273680: _verifyUser() for Anonymous could result in very
  expensive lookup of all users for some implementations,
  eg. Membrane.

- Ensure the _findUser cache is invalidated if the roles or groups for
  a principal change.

- Launchpad #15569586:  docstring fix.

- Ensure ZODBRoleManagerExportImport doesn't fail if it tries to add a
  role that already exists (idempotence is desirable in GS importers)


PluggableAuthService 1.5.3 (2008-02-06)
---------------------------------------

- ZODBUserManager plugin:  allow unicode arguments to 'enumerateUsers'.
  (https://bugs.launchpad.net/zope-pas/+bug/189627)

- plugins/ZODBRoleManager: added logging in case searchPrincipial()
  returning more than one result (which might happen in case of 
  having duplicate id within difference user sources)


PluggableAuthService 1.5.2.1 (2007-12-07)
-----------------------------------------

- Packaging error:  the 1.5.2 distribution was made from an
  'svn export', and thus was missing package data files.


PluggableAuthService 1.5.2 (2007-11-28)
---------------------------------------

- DomainAuthHelper plugin:  fix glitch for plugins which have never
  configured any "default" policy:  'authenticateCredentials' and
  'getRolesForPrincipal' would raise ValueError.
  (http://www.zope.org/Collectors/PAS/59)


PluggableAuthService 1.5.1 (2007-09-11)
---------------------------------------

- PluggableAuthService._verifyUser: changed to use exact_match to the 
  enumerator, otherwise a user with login 'foobar' might get returned 
  by _verifyUser for a query for login='foo' because the enumerator 
  happened to return 'foobar' first in the results.

- Add a test for manage_zmi_logout and replace a call to isImplementedBy
  with providedBy.
  (http://www.zope.org/Collectors/PAS/58)


PluggableAuthService 1.5 (2007-06-17)
-------------------------------------

- Add support for property plugins returning an IPropertySheet
  to PropertiedUser. Added addPropertysheet to the IPropertiedUser.

- Added a method to the IRoleAssignerPlugin to remove roles from a
  principal, and an implementation for it on the ZODBRoleManager.
  (http://www.zope.org/Collectors/PAS/57)

- Added events infrastructure. Enabled new IPrincipalCreatedEvent and
  ICredentialsUpdatedEvent events.

- Added support for registering plugin types via ZCML.

- Implemented authentication caching in _extractUserIds.

- Ported standard user folder tests from the AccessControl test suite.

- Passwords with ":" characters would break authentication
  (http://www.zope.org/Collectors/PAS/51)

- Corrected documented software dependencies

- Converted to publishable security sensitive methods to only accept
  POST requests to prevent XSS attacks.  See
  http://www.zope.org/Products/Zope/Hotfix-2007-03-20/announcement and
  http://dev.plone.org/plone/ticket/6310

- Fixed issue in the user search filter where unrecognized keyword
  arguments were ignored resulting in duplicate search entries.
  (http://dev.plone.org/plone/ticket/6300)

- Made sure the Extensions.upgrade script does not commit full
  transactions but only sets (optimistic) savepoints. Removed bogus
  Zope 2.7 compatibility in the process.
  (http://www.zope.org/Collectors/PAS/55)

- Made the CookieAuthHelper only use the '__ac_name' field if
  '__ac_password' is also present. This fixes a login problem for
  CMF sites where the login name was remembered between sessions with
  an '__ac_name' cookie.

- Made the DomainAuthHelper return the remote address, even it the
  remote host is not available (http://www.zope.org/Collectors/PAS/49).

- Fixed bug in DelegatingMultiPlugin which attempted to validate the
  supplied password directly against the user password - updated to use
  AuthEncoding.pw_validate to handle encoding issues

- Fixed serious security hole in DelegatingMultiPlugin which allowed
  Authentication if the EmergencyUser login was passed in.  Added
  password validation utilizing AuthEncoding.pw_validate

- Fixed a set of tests that tested values computed from dictionaries 
  and could break since dictionaries are not guaranteed to have any 
  sort order.

- Fixed test breakage induced by use of Z3 pagetemplates in Zope
  2.10+.

- BasePlugin: The listInterfaces method only considered the old-style
  __implements__ machinery when determining interfaces provided by
  a plugin instance.

- ZODBUserManager: Already encrypted passwords were encrypted again in
  addUser and updateUserPassword.
  (http://www.zope.org/Collectors/Zope/1926)

- Made sure the emergency user via HTTP basic auth always wins, no matter
  how borken the plugin landscape.

- cleaned up code in CookieAuthHelper which allowed the form to override
  login/password if a cookie had already been set.

- Removed some BBB code for Zope versions < 2.8, which is not needed 
  since we require Zope > 2.8.5 nowadays.


PluggableAuthService 1.4 (2006-08-28)
-------------------------------------

- Extended the DomainAuthHelper to function as its own extraction
  plugin, to allow for the case that another extractor is registered,
  but does not return any credentials.
  (http://www.zope.org/Collectors/PAS/46)

- Re-worded parts of the README so they don't point to specific or 
  non-existing files (http://www.zope.org/Collectors/PAS/6 and
  http://www.zope.org/Collectors/PAS/47)


PluggableAuthService 1.4-beta (2006-08-07)
------------------------------------------

- Created a "Configured PAS" entry in the ZMI add list, which
  allows creating a PAS using base and extension GenericSetup profiles
  registered for IPluggableAuthService.  This entry should eventually
  replace the "stock" PAS entry (assuming that we make GenericSetup
  a "hard" dependency).

- Added an "empty" GenericSetup profile, which creates a PAS containing
  only a plugin registry and a setup tool.

- Repaired the "simple" GenericSetup profile to be useful, rather than
  catastrophic, to apply:  it now creates and registers a set of
  ZODB-based user / group / role plugins, along with a basic auth
  helper.

- ZODBUserManager: Extend the "notional IZODBUserManager interface"
  with the left-out updateUser facility and a corresponding
  manage_updateUser method for ZMI use. Removed any responsibility
  for updating a user's login from the updateUserPassword and
  manage_updateUserPassword methods. This fixes the breakage
  described in the collector issue below, and makes the ZMI view
  for updating users work in a sane way.
  (http://www.zope.org/Collectors/PAS/42)

- CookieAuthHelper: If expireCookie was called and extractCredentials
  was hit in the same request, the CookieAuthHelper would throw an
  exception (http://www.zope.org/Collectors/PAS/43)

- Added a DEPENDENCIES.txt. (http://www.zope.org/Collectors/PAS/44)


PluggableAuthService 1.3 (2006-06-09)
-------------------------------------

- No changes from version 1.3-beta


PluggableAuthService 1.3-beta (2006-06-03)
------------------------------------------

- Modify CookieAuthHelper to prefer __ac form variables to the cookie
  when extracting credentials.
  (https://dev.plone.org/plone/ticket/5355)


PluggableAuthService 1.2 (2006-05-14)
-------------------------------------

- Fix manage_zmi_logout which stopped working correctly as soon as the
  PluggableAuthService product code was installed by correcting the
  monkeypatch for it in __init__.py.
  (http://www.zope.org/Collectors/PAS/12)

- Add missing interface for IPropertiedUser and tests
  (http://www.zope.org/Collectors/PAS/16)

- Removed STX links from README.txt which do nothing but return 
  404s when clicked from the README on zope.org.
  (http://www.zope.org/Collectors/PAS/6)

- Fixing up inconsistent searching in the listAvailablePrincipals
  method of the ZODBRoleManager and ZODBGroupManager plugins. Now both
  constrain searches by ID.
  (http://www.zope.org/Collectors/PAS/11)

- Convert from using zLOG to using the Python logging module.
  (http://www.zope.org/Collectors/PAS/14)


PluggableAuthService 1.2-beta (2006-02-25)
------------------------------------------

- Added suppport for exporting / importing a PAS and its content via
  the GenericSetup file export framework.

- Made ZODBRoleManager plugin check grants to the principal's groups,
  as well as those made to the principal directly.

- Added two new interfaces, IChallengeProtocolChooser and
  IRequestTypeSniffer. Those are used to select the 'authorization
  protocol' or 'challenger protocol' to be used for challenging
  according to the incoming request type.

- Repaired warings appearing in Zope 2.8.5 due to a couple typos
  in security declarations.

- Repaired DeprecationWarnings due to use of Zope2 interface verification.

- Repaired unit test breakage (unittest.TestCase instances have
  'failUnless'/'failIf', rather than 'assertTrue'/'assertFalse').

- Fixed a couple more places where Zope 2-style ``__implements__``
  were being used to standardize on using ``classImplements``.

- Fixed fallback implementations of ``providedBy`` and
  ``implementedBy`` to always return a tuple.

- Make sure challenge doesn't break if existing instances of the
  PluginRegistry don't yet have ``IChallengeProtocolChooser`` as a
  registered interface. (Would be nice to have some sort of
  migration for the PluginRegistry between PAS releases)

- Don't assume that just because zope.interface can be imported
  that Five is present.


PluggableAuthService 1.1b2 (2005-07-14)
---------------------------------------

- Repaired a missing 'nocall:' in the Interfaces activation form.


PluggableAuthService 1.1b1 (2005-07-06)
---------------------------------------

- PAS-level id mangling is no more. All (optional) mangling is now
  done on a per-plugin basis.

- Interfaces used by PAS are now usable in both Zope 2.7 and 2.8
  (Five compatible)


PluggableAuthService 1.0.5 (2005-01-31)
---------------------------------------

- Simplified detection of the product directory using 'package_home'.

- Set a default value for the 'login' attribute of a PAS, to avoid
  UnboundLocalError.

PluggableAuthService 1.0.4 (2005-01-27)
---------------------------------------

- Made 'Extensions' a package, to allow importing its scripts
  as modules.

- Declared new 'IPluggableAuthService' interface, describing additional
  PAS-specific API.

- Exposed PAS' 'resetCredentials' and 'updateCredentials' as public
  methods.

- Monkey-patch ZMI's logout to invoke PAS' 'resetCredentials', if
  present.

- CookieAuth plugin now encodes and decodes cookies in the same
  format as CookieCrumbler to provide compatibility between
  sites running PAS and CC.

- Add a publicly callable "logout" method on the PluggableAuthService
  instance that will call resetCredentials on all activated 
  ICredentialsRest plugins, thus effecting a logout.

- Enabled the usage of the CookieAuthHelper login screen functionality
  without actually using the CookieAuthHelper to maintain the 
  credentials store in its own auth cookie by ensuring that only
  active updateCredentials plugins are informed about a successful
  login so they can store the credentials.

- Added a _getPAS method to the BasePlugin base class to be used
  as the canonical way of getting at the PAS instance from within
  plugins.

- Group and user plugins can now specify their own title for a
  principal entry (PAS will not compute one if they do).

- PAS and/or plugins can now take advantage of caching using the
  Zope ZCacheable framework with RAM Cache Managers. See
  doc/caching.stx for the details.

- Make 'getUserById' pass the 'login' to '_findUser', so that
  the returned user object can answer 'getUserName' sanely.

- Harden 'logout' against missing HTTP_REFERRER.

- Avoid triggering "Emergency user cannot own" when adding a
  CookieAuthHelper plugin as that user.

- Detect and prevent recursive redirecting in the CookieAuthHelper
  if the login_form cannot be reached by the Anonymous User.

- Made logging when swallowing exceptions much less noisy (they
  *don't* necessarily require attention).

- Clarified interface of IAuthenticationPlugin, which should return
  None rather than raising an exception if asked to authenticate an
  unknown principal;  adjusted ZODBUserManager accordingly.

- Don't log an error in zodb_user_plugin's authenticateCredentials
  if we don't have a record for a particular username, just return None.

- If an IAuthenticationPlugin returns None instead of a tuple
  from authenticateCredentials, don't log a tuple-unpack error in PAS
  itself.


PluggableAuthService 1.0.3 (2004-10-16)
---------------------------------------

- Implemented support for issuing challenges via IChallengePlugins.

  - three challenge styles in particular:

    - HTTP Basic Auth

    - CookieCrumbler-like redirection

    - Inline authentication form

- Made unit tests pass when run with cAccessControl.

- plugins/ZODBRoleManager.py: don't claim authority for 'Authenticated'
  or 'Anonymous' roles, which are managed by PAS.

- plugins/ZODBRoleManager.py: don't freak out if a previously assigned
  principal goes away.

- plugins/ZODBGroupManager.py: don't freek out if a previously assigned
  principal goes away.

- plugins/ZODBUserManager.py: plugin now uses AuthEncoding for its
  password encryption so that we can more easily support migrating
  existing UserFolders. Since PAS has been out for a while,
  though, we still will authenticate against old credentials

- Repaired arrow images in two-list ZMI views.

- searchPrincipals will work for exact matches when a plugin supports
  both 'enumerateUsers' and 'enumerateGroups'.

- 'Authenticated' Role is now added dynamically by the
  PluggableAuthService, not by any role manager

- Added WARNING-level logs with tracebacks for all swallowed
  plugin exceptions, so that you notice that there is something
  wrong with the plugins.

- All authenticateCredentials() returned a single None when they
  could not authenticate, although all calls expected a tuple.

- The user id in extract user now calls _verifyUser to get the ID
  mangled by the enumeration plugin, instead of mangling it with the
  authentication ID, thereby allowing the authentication and
  enumeration plugins to be different plugins.


PluggableAuthService 1.0.2 (2004-07-15)
---------------------------------------

- ZODBRoleManager and ZODBGroupManager needed the "two_lists" view,
  and associated images, which migrated to the PluginRegsitry product
  when they split;  restored them.


PluggableAuthService 1.0.1 (2004-05-18)
---------------------------------------

- CookieAuth plugin didn't successfully set cookies (first, because
  of a NameError, then, due to a glitch with long lines).

- Missing ZPL in most modules.


PluggableAuthService 1.0 (2004-04-29)
-------------------------------------

- Initial release

