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2010-08-08- New public interface: ``repoze.bfg.exceptions.IExceptionResponse``.Chris McDonough
This interface is provided by all internal exception classes (such as ``repoze.bfg.exceptions.NotFound`` and ``repoze.bfg.exceptions.Forbidden``), instances of which are both exception objects and can behave as WSGI response objects. This interface is made public so that exception classes which are also valid WSGI response factories can be configured to implement them or exception instances which are also or response instances can be configured to provide them. - New API class: ``repoze.bfg.view.AppendSlashNotFoundViewFactory`` (undoes previous custom_notfound_view on request passsed to append_slash_notfound_view). - Previously, two default view functions were registered at Configurator setup (one for ``repoze.bfg.exceptions.NotFound`` named ``default_notfound_view`` and one for ``repoze.bfg.exceptions.Forbidden`` named ``default_forbidden_view``) to render internal exception responses. Those default view functions have been removed, replaced with a generic default view function which is registered at Configurator setup for the ``repoze.bfg.interfaces.IExceptionResponse`` interface that simply returns the exception instance; the ``NotFound` and ``Forbidden`` classes are now still exception factories but they are also response factories which generate instances that implement the new ``repoze.bfg.interfaces.IExceptionResponse`` interface.
2010-07-26merge generic_rendering branchChris McDonough
2010-07-24- A new method of the ``Configurator`` exists:Chris McDonough
``set_request_factory``. If used, this method will set the factory used by the :mod:`repoze.bfg` router to create all request objects. - The ``Configurator`` constructor takes an additional argument: ``request_factory``. If used, this argument will set the factory used by the :mod:`repoze.bfg` router to create all request objects. - The ``Hooks`` narrative chapter now contains a section about changing the request factory.
2010-07-02- The ``repoze.bfg.url.route_url`` API has changed. If a keywordChris McDonough
``_app_url`` is present in the arguments passed to ``route_url``, this value will be used as the protocol/hostname/port/leading path prefix of the generated URL. For example, using an ``_app_url`` of ``http://example.com:8080/foo`` would cause the URL ``http://example.com:8080/foo/fleeb/flub`` to be returned from this function if the expansion of the route pattern associated with the ``route_name`` expanded to ``/fleeb/flub``. - It is now possible to use a URL as the ``name`` argument fed to ``repoze.bfg.configuration.Configurator.add_static_view``. When the name argument is a URL, the ``repoze.bfg.url.static_url`` API will generate join this URL (as a prefix) to a path including the static file name. This makes it more possible to put static media on a separate webserver for production, while keeping static media package-internal and served by the development webserver during development.
2010-04-25Merge i18n branch via svn merge --ignore-ancestry -r9030:9150 ↵Chris McDonough
$REPOZE_SVN/repoze.bfg/branches/i18n No foreigners were harmed in the coding of this feature.
2010-04-21Moved i18n work to a branch and revert to pre-i18n-feature state via svn ↵Chris McDonough
merge -r9054:9030 svn+ssh://repoze@svn.repoze.org/svn/repoze.bfg/trunk
2010-04-19Pass along translate function to templates.Chris McDonough
2010-04-19Dip a toe in the i18n waters.Chris McDonough
2010-04-14Remove INotFoundView and IForbiddenView interfaces.Chris McDonough
2010-04-14Add "exception views" work contributed primarily by Andrey Popp by merging ↵Chris McDonough
the "phash" branch.
2009-12-24Roles.Chris McDonough
2009-12-09- General documentation freshening which takes imperativeChris McDonough
configuration into account in more places and uses glossary references more liberally.
2009-12-01Organize into public and private interfaces.Chris McDonough
2009-11-30Get rid of misleading comment.Chris McDonough
2009-11-25This isn't really an object event in the sense that it is sent to an object ↵Chris McDonough
event listener.
2009-11-23- The ``repoze.bfg.interfaces.ITemplateRendererFactory`` interface wasChris McDonough
removed; it has become unused. - Change imperative API.
2009-11-23- The internal ILogger utility named ``repoze.bfg.debug`` is now justChris McDonough
an IDebugLogger unnamed utility. A named utility with the old name is registered for b/w compat.
2009-11-21- "Hybrid mode" applications (applications which explicitly usedChris McDonough
traversal *after* url dispatch via ``<route>`` paths containing the ``*traverse`` element) were broken in 1.1-final and all 1.1 alpha and beta releases. Views registered without a ``route_name`` route shadowed views registered with a ``route_name`` inappropriately.
2009-11-02- Add a new event type: ``repoze.bfg.events.AfterTraversal``. EventsChris McDonough
of this type will be sent after traversal is completed, but before any view code is invoked. Like ``repoze.bfg.events.NewRequest``, This event will have a single attribute: ``request`` representing the current request. Unlike the request attribute of ``repoze.bfg.events.NewRequest`` however, during an AfterTraversal event, the request object will possess attributes set by the traverser, most notably ``context``, which will be the context used when a view is found and invoked. The interface ``repoze.bfg.events.IAfterTraversal`` can be used to subscribe to the event. For example:: <subscriber for="repoze.bfg.interfaces.IAfterTraversal" handler="my.app.handle_after_traverse"/> Like any framework event, a subscriber function should expect one parameter: ``event``.
2009-10-26Readd backward compat for ITraverserFactory -> ITraverser change.Chris McDonough
2009-10-18- Added ``Changing the Traverser`` and ``Changing HowChris McDonough
:mod:`repoze.bfg.url.model_url` Generates a URL`` to the "Hooks" narrative chapter of the docs.
2009-09-30- The import of ``repoze.bfg.view.NotFound`` is deprecated in favor ofChris McDonough
``repoze.bfg.exceptions.NotFound``. The old location still functions, but emits a deprecation warning. - The import of ``repoze.bfg.security.Unauthorized`` is deprecated in favor of ``repoze.bfg.exceptions.Forbidden``. The old location still functions but emits a deprecation warning. The rename from ``Unauthorized`` to ``Forbidden`` brings parity to the the name of the exception and the system view it invokes when raised. - New ``repoze.bfg.exceptions`` module was created to house exceptions that were previously sprinkled through various modules. - An ``exceptions`` API chapter was added, documenting the new ``repoze.bfg.exceptions`` module.
2009-09-20- The way ``bfg_view`` declarations are scanned for has been modified.Chris McDonough
This should have no external effects. - An object implementing the ``IRenderer`` interface (and ``ITemplateRenderer`, which is a subclass of ``IRenderer``) must now accept an extra ``system`` argument in its ``__call__`` method implementation. Values computed by the system (as opposed to by the view) are passed by the system in the ``system`` parameter, which will always be a dictionary. Keys in the dictionary include: ``view`` (the view object that returned the value), ``renderer_name`` (the template name or simple name of the renderer), ``context`` (the context object passed to the view), and ``request`` (the request object passed to the view). Previously only ITemplateRenderers received system arguments as elements inside the main ``value`` dictionary.
2009-09-16Checkpoint. Not 100% test coverage.Chris McDonough
2009-09-06Remove 0.9 deprecations.Chris McDonough
2009-09-06Merge multiview2 branch to HEAD.Chris McDonough
2009-06-29Merge pkg_resource_overrides branch.Chris McDonough
2009-06-27Represent reality properly.Chris McDonough
2009-06-24Merge noroutes branch to trunk.Chris McDonough
2009-06-11Merge unifyroutesandtraversal branch into trunkChris McDonough
2009-05-31FeaturesChris McDonough
-------- - It is now possible to register a custom ``repoze.bfg.interfaces.INotFoundView`` for a given application. This feature replaces the ``repoze.bfg.interfaces.INotFoundAppFactory`` feature previously described in the Hooks chapter. The INotFoundView will be called when the framework detects that a view lookup done as a result of a reqest fails; it should accept a context object and a request object; it should return an IResponse object (a webob response, basically). See the Hooks narrative chapter of the BFG docs for more info. Deprecations ------------ - The ``repoze.bfg.interfaces.IUnauthorizedAppFactory`` interface has been deprecated in favor of using the new ``repoze.bfg.interfaces.IForbiddenResponseFactory`` mechanism.
2009-05-31- Renamed ``repoze.bfg.interfaces.IForbiddenResponseFactory`` toChris McDonough
``repoze.bfg.interfaces.IForbiddenView``.
2009-05-30- Remove "context" argument from ``effective_principals`` andChris McDonough
``authenticated_userid`` function APIs in ``repoze.bfg.security``, effectively a doing reversion to 0.8 and before behavior. Both functions now again accept only the ``request`` parameter.
2009-05-30- Add an AuthTktAuthenticationPolicy. This policy retrievesChris McDonough
credentials from an auth_tkt cookie managed by the application itself (instead of relying on an upstream data source for authentication data). See the Security API chapter of the documentation for more info. - Allow RemoteUserAuthenticationPolicy and RepozeWho1AuthenticationPolicy to accept various constructor arguments. See the Security API chapter of the documentation for more info.
2009-05-27- Removed backwards compatibility alias forChris McDonough
``repoze.bfg.interfaces.IRootPolicy`` (deprecated since 0.6.2). It must be imported as ``repoze.bfg.interfaces.IRootFactory`` now. - Removed backwards compatibility alias for ``repoze.bfg.interfaces.ITemplate`` (deprecated since 0.4.4). It must be imported as ``repoze.bfg.interfaces.ITemplateRenderer`` now. - Removed backwards compatibility alias for ``repoze.bfg.interfaces.ITemplateFactory`` (deprecated since 0.4.4). It must be imported as ``repoze.bfg.interfaces.ITemplateRendererFactory`` now. - Removed backwards compatibility alias for ``repoze.bfg.chameleon_zpt.ZPTTemplateFactory`` (deprecated since 0.4.4). This must be imported as ``repoze.bfg.ZPTTemplateRenderer`` now.
2009-05-27Merge authchanges branch to trunk.Chris McDonough
2009-05-26Revert all work towards creating a "forbidden" API on the security policy; ↵Chris McDonough
I'll do this work on the authchanges branch first.
2009-05-25IForbiddenAppFactory -> IForbiddenResponseFactory.Chris McDonough
2009-05-25Change the semantics of IForbiddenAppFactory.Chris McDonough
2009-05-24FeaturesChris McDonough
-------- - It is now possible to write a custom security policy that returns a customized ``Forbidden`` WSGI application when BFG cannot authorize an invocation of a view. To this end, ISecurityPolicy objects must now have a ``forbidden`` method. This method should return a WSGI application. The returned WSGI application should generate a response which is appropriate when access to a view resource was forbidden by the security policy (e.g. perhaps a login page). ``repoze.bfg`` is willing to operate with a custom security policy that does not have a ``forbidden`` method, but it will issue a warning; eventually security policies without a ``forbidden`` method will cease to work under ``repoze.bfg``. Note that the ``forbidden`` WSGI application returned by the security policy is not used if a developer has registered an IForbiddenAppFactory (see the "Hooks" narrative chapter); the explicitly registered IForbiddenAppFactory will be preferred over the (more general) security policy forbidden app factory. - All default security policies now have a ``forbidden`` callable attached to them. This particular callable returns a WSGI application which generates a ``401 Unauthorized`` response for backwards compatibility (had backwards compatibility not been an issue, this callable would have returned a WSGI app that generated a ``403 Forbidden`` response). Backwards Incompatibilities --------------------------- - Custom NotFound and Forbidden (nee' Unauthorized) WSGI applications (registered a a utility for INotFoundAppFactory and IUnauthorizedAppFactory) could rely on an environment key named ``message`` describing the circumstance of the response. This key has been renamed to ``repoze.bfg.message`` (as per the WSGI spec, which requires environment extensions to contain dots). Deprecations ------------ - The ``repoze.bfg.interfaces.IUnauthorizedAppFactory`` interface has been renamed to ``repoze.bfg.interfaces.IForbiddenAppFactory``.
2009-05-18FeaturesChris McDonough
-------- - Added a ``traverse`` function to the ``repoze.bfg.traversal`` module. This function may be used to retrieve certain values computed during path resolution. See the Traversal API chapter of the documentation for more information about this function. Deprecations ------------ - Internal: ``ITraverser`` callables should now return a dictionary rather than a tuple. Up until 0.7.0, all ITraversers were assumed to return a 3-tuple. In 0.7.1, ITraversers were assumed to return a 6-tuple. As (by evidence) it's likely we'll need to add further information to the return value of an ITraverser callable, 0.8 assumes that an ITraverser return a dictionary with certain elements in it. See the ``repoze.bfg.interfaces.ITraverser`` interface for the list of keys that should be present in the dictionary. ``ITraversers`` which return tuples will still work, although a deprecation warning will be issued. Backwards Incompatibilities --------------------------- - If your code used the ITraverser interface directly (not via an API function such as ``find_model``) via an adapter lookup, you'll need to change your code to expect a dictionary rather than a 3- or 6-tuple if your code ever gets return values from the default ModelGraphTraverser or RoutesModelTraverser adapters.
2009-05-16Speed up common case (use default factory).Chris McDonough
2009-05-16- The ``RoutesMapper`` class in ``repoze.bfg.urldispatch`` has beenChris McDonough
removed, as well as its documentation. It had been deprecated since 0.6.3. Code in ``repoze.bfg.urldispatch.RoutesModelTraverser`` which catered to it has also been removed. - The semantics of the ``route`` ZCML directive have been simplified. Previously, it was assumed that to use a route, you wanted to map a route to an externally registered view. The new ``route`` directive instead has a ``view`` attribute which is required, specifying the dotted path to a view callable. When a route directive is processed, a view is *registered* using the name attribute of the route directive as its name and the callable as its value. The ``view_name`` and ``provides`` attributes of the ``route`` directive are therefore no longer used. Effectively, if you were previously using the ``route`` directive, it means you must change a pair of ZCML directives that look like this:: <route name="home" path="" view_name="login" factory=".models.root.Root" /> <view for=".models.root.Root" name="login" view=".views.login_view" /> To a ZCML directive that looks like this:: <route name="home" path="" view=".views.login_view" factory=".models.root.Root" /> In other words, to make old code work, remove the ``view`` directives that were only there to serve the purpose of backing ``route`` directives, and move their ``view=`` attribute into the ``route`` directive itself. This change also necessitated that the ``name`` attribute of the ``route`` directive is now required. If you were previously using ``route`` directives without a ``name`` attribute, you'll need to add one (the name is arbitrary, but must be unique among all ``route`` and ``view`` statements). The ``provides`` attribute of the ``route`` directive has also been removed. This directive specified a sequence of interface types that the generated context would be decorated with. Since route views are always generated now for a single interface (``repoze.bfg.IRoutesContext``) as opposed to being looked up arbitrarily, there is no need to decorate any context to ensure a view is found. - The Routes ``Route`` object used to resolve the match is now put into the environment as ``bfg.route`` when URL dispatch is used.
2009-05-01Remove dependencies on zope.deferredimport. zope.deferredimport wasChris McDonough
only used as a deprecation mechanism, so where possible we've kept around the deprecation warnings and we've used zope.deprectation instead. However, when cross-module deprecations were included, rather than introducing a cyclic dependency, we just removed the deprecation itself. As a result: - Since version 0.6.1, a deprecation warning has been emitted when the name ``model_url`` is imported from the ``repoze.bfg.traversal`` module. This import alias (and the deprecation warning) has been removed. Any import of the ``model_url`` function will now need to be done from ``repoze.bfg.url``; any import of the name ``model_url`` from ``repoze.bfg.traversal`` will now fail. This was done to remove a dependency on zope.deferredimport. - Since version 0.6.5, a deprecation warning has been emitted when the name ``RoutesModelTraverser`` is imported from the ``repoze.bfg.traversal`` module. This import alias (and the deprecation warning) has been removed. Any import of the ``RoutesModelTraverser`` class will now need to be done from ``repoze.bfg.urldispatch``; any import of the name ``RoutesModelTraverser`` from ``repoze.bfg.traversal`` will now fail. This was done to remove a dependency on zope.deferredimport.
2009-05-01Merge "c-free" branch to trunk.Chris McDonough
2009-05-01- The ``repoze.bfg.location.LocationProxy`` class and theChris McDonough
``repoze.bfg.location.ClassAndInstanceDescr`` class have both been removed in order to be able to eventually shed a dependency on ``zope.proxy``. Neither of these classes was ever an API. - In all previous releases, the ``repoze.bfg.location.locate`` function worked like so: if a model did not explicitly provide the ``repoze.bfg.interfaces.ILocation`` interface, ``locate`` returned a ``LocationProxy`` object representing ``model`` with its ``__parent__`` attribute assigned to ``parent`` and a ``__name__`` attribute assigned to ``__name__``. In this release, the ``repoze.bfg.location.locate`` function simply jams the ``__name__`` and ``__parent__`` attributes on to the supplied model unconditionally, no matter if the object implements ILocation or not, and it never returns a proxy. This was done because the LocationProxy behavior has now moved into an add-on package (``repoze.bfg.traversalwrapper``), in order to eventually be able to shed a dependency on ``zope.proxy``. - In all previous releases, by default, if traversal was used (as opposed to URL-dispatch), and the root object supplied the``repoze.bfg.interfaces.ILocation`` interface, but the children returned via its ``__getitem__`` returned an object that did not implement the same interface, :mod:`repoze.bfg` provided some implicit help during traversal. This traversal feature wrapped subobjects from the root (and thereafter) that did not implement ``ILocation`` in proxies which automatically provided them with a ``__name__`` and ``__parent__`` attribute based on the name being traversed and the previous object traversed. This feature has now been removed from the base ``repoze.bfg`` package for purposes of eventually shedding a dependency on ``zope.proxy``. In order to re-enable the wrapper behavior for older applications which cannot be changed, register the "traversalwrapper" ``ModelGraphTraverser`` as the traversal policy, rather than the default ``ModelGraphTraverser``. To use this feature, you will need to install the ``repoze.bfg.traversalwrapper`` package (an add-on package, available at http://svn.repoze.org/repoze.bfg.traversalwrapper) Then change your application's ``configure.zcml`` to include the following stanza: <adapter factory="repoze.bfg.traversalwrapper.ModelGraphTraverser" provides="repoze.bfg.interfaces.ITraverserFactory" for="*" /> When this ITraverserFactory is used instead of the default, no object in the graph (even the root object) must supply a ``__name__`` or ``__parent__`` attribute. Even if subobjects returned from the root *do* implement the ILocation interface, these will still be wrapped in proxies that override the object's "real" ``__parent__`` and ``__name__`` attributes. See also changes to the "Models" chapter of the documentation (in the "Location-Aware Model Instances") section.
2009-04-16- The interface for ``repoze.bfg.interfaces.ITraverser`` and theChris McDonough
built-in implementations that implement the interface (``repoze.bfg.traversal.ModelGraphTraverser``, and ``repoze.bfg.urldispatch.RoutesModelTraverser``) now expect the ``__call__`` method of an ITraverser to return 3 additional arguments: ``traversed``, ``virtual_root``, and ``virtual_root_path`` (the old contract was that the ``__call__`` method of an ITraverser returned; three arguments, the contract new is that it returns six). ``traversed`` will be a sequence of Unicode names that were traversed (including the virtual root path, if any) or ``None`` if no traversal was performed, ``virtual_root`` will be a model object representing the virtual root (or the physical root if traversal was not performed), and ``virtual_root_path`` will be a sequence representing the virtual root path (a sequence of Unicode names) or ``None`` if traversal was not performed. Six arguments are now returned from BFG ITraversers. They are returned in this order: ``context``, ``view_name``, ``subpath``, ``traversed``, ``virtual_root``, and ``virtual_root_path``. Places in the BFG code which called an ITraverser continue to accept a 3-argument return value, although BFG will generate and log a warning when one is encountered. - The request object now has the following attributes: ``traversed`` (the sequence of names traversed or ``None`` if traversal was not performed), ``virtual_root`` (the model object representing the virtual root, including the virtual root path if any), and ``virtual_root_path`` (the seuquence of names representing the virtual root path or ``None`` if traversal was not performed). - A new decorator named ``wsgiapp2`` was added to the ``repoze.bfg.wsgi`` module. This decorator performs the same function as ``repoze.bfg.wsgi.wsgiapp`` except it fixes up the ``SCRIPT_NAME``, and ``PATH_INFO`` environment values before invoking the WSGI subapplication. - The ``repoze.bfg.testing.DummyRequest`` object now has default attributes for ``traversed``, ``virtual_root``, and ``virtual_root_path``. - The RoutesModelTraverser now behaves more like the Routes "RoutesMiddleware" object when an element in the match dict is named ``path_info`` (usually when there's a pattern like ``http://foo/*path_info``). When this is the case, the ``PATH_INFO`` environment variable is set to the value in the match dict, and the ``SCRIPT_NAME`` is appended to with the prefix of the original ``PATH_INFO`` not including the value of the new variable. - The notfound debug now shows the traversed path, the virtual root, and the virtual root path too.
2009-01-27FeaturesChris McDonough
-------- - The ``repoze.bfg.url.model_url`` API now works against contexts derived from Routes URL dispatch (``Routes.util.url_for`` is called under the hood). - "Virtual root" support for traversal-based applications has been added. Virtual root support is useful when you'd like to host some model in a :mod:`repoze.bfg` model graph as an application under a URL pathname that does not include the model path itself. For more information, see the (new) "Virtual Hosting" chapter in the documentation. - A ``repoze.bfg.traversal.virtual_root`` API has been added. When called, it returns the virtual root object (or the physical root object if no virtual root has been specified). Implementation Changes ---------------------- - ``repoze.bfg.traversal.RoutesModelTraverser`` has been moved to ``repoze.bfg.urldispatch``. - ``model_url`` URL generation is now performed via an adapter lookup based on the context and the request. - ZCML which registers two adapters for the ``IContextURL`` interface has been added to the configure.zcml in ``repoze.bfg.includes``.
2009-01-27- There is an indirection in ``repoze.bfg.url.model_url`` now thatChris McDonough
consults a utility to generate the base model url (without extra elements or a query string). Eventually this will service virtual hosting; for now it's undocumented and should not be hooked.
2009-01-25- Get rid of ``repoze.bfg.security.ACLAuthorizer``: theChris McDonough
``ACLSecurityPolicy`` now does what it did inline. - Get rid of ``repoze.bfg.interfaces.NoAuthorizationInformation`` exception: it was used only by ``ACLAuthorizer``.