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Changelog for Falcon 3.1.0
==========================
Summary
-------
This release contains several refinements to request validation and
error handling, along with some tweaks to response handling for static and
downloadable files.
Due to popular demand, :class:`~falcon.testing.TestClient` and
:class:`~falcon.testing.ASGIConductor` now expose convenience shorthand aliases
for the ``simulate_*`` methods, i.e.,
:func:`~falcon.testing.TestClient.simulate_get` is now also available as
:func:`~falcon.testing.TestClient.get`, etc.
Some important bugs were also fixed to ensure applications properly clean up
response streams and do not hang when reading request bodies that are
streamed using chunked transfer encoding.
This release also adds support for CPython 3.10 and deprecates CPython 3.6.
Changes to Supported Platforms
------------------------------
- CPython 3.10 is now fully supported. (`#1966 <https://github.com/falconry/falcon/issues/1966>`__)
- Support for Python 3.6 is now deprecated and will be removed in Falcon 4.0.
- As with the previous release, Python 3.5 support remains deprecated and will
no longer be supported in Falcon 4.0.
New & Improved
--------------
- The :func:`jsonschema.validate <falcon.media.validators.jsonschema.validate>`
decorator now raises an instance of :class:`~falcon.MediaValidationError`
instead of the generic :class:`~falcon.HTTPBadRequest` for request media
validation failures. Although the default behavior is kept unaltered in a
backwards-compatible fashion (as the specialized exception subclasses the
generic one), but it can now be easily customized by adding an error handler
for the new class. (`#1320 <https://github.com/falconry/falcon/issues/1320>`__)
- Due to popular demand, :class:`~falcon.testing.TestClient` and
:class:`~falcon.testing.ASGIConductor` now expose convenience shorthand aliases
for the ``simulate_*`` methods, i.e.,
:func:`~falcon.testing.TestClient.simulate_get` is now also available as
:func:`~falcon.testing.TestClient.get`, etc. (`#1806 <https://github.com/falconry/falcon/issues/1806>`__)
- The :attr:`Request.range <falcon.Request.range>` property now has stricter
validation:
* When parsing a byte-range-spec with a last-byte-pos, it must be greater
than or equal to first-byte-pos.
* When parsing a suffix-byte-range-spec, suffix-length must be positive.
:func:`Static routes <falcon.App.add_static_route>` now support ``Range``
requests. This is useful for streaming media and resumable downloads. (`#1858 <https://github.com/falconry/falcon/issues/1858>`__)
- Added a :attr:`Response.viewable_as <falcon.Response.viewable_as>` property;
this is similar to :attr:`Response.downloadable_as <falcon.Response.downloadable_as>`
but with an "inline" disposition type so the response will still be displayed
in the browser. (`#1951 <https://github.com/falconry/falcon/issues/1951>`__)
- Added support for passing :any:`pathlib.Path` objects as `directory` in the
:func:`~falcon.App.add_static_route` method on all targeted Python versions. (`#1962 <https://github.com/falconry/falcon/issues/1962>`__)
- :func:`Static routes <falcon.App.add_static_route>` now set the
``Content-Length`` header indicating a served file's size
(or length of the rendered content range). (`#1991 <https://github.com/falconry/falcon/issues/1991>`__)
- When called with deprecated positional arguments, methods and class
initializers (such as :class:`falcon.HTTPError`) will now emit a
user-friendlier warning indicating the fully qualified name of the method in
question. (`#2010 <https://github.com/falconry/falcon/issues/2010>`__)
Fixed
-----
- If provided, the ``close()`` method of an ASGI
:attr:`resp.stream <falcon.asgi.Response.stream>` is now guaranteed to be
called even in the case of an exception raised while iterating over the data. (`#1943 <https://github.com/falconry/falcon/issues/1943>`__)
- Previously, files could be left open when serving via an ASGI static route
(depending on the underlying GC implementation). This has been fixed so that a
file is closed explicitly after rendering the response. (`#1963 <https://github.com/falconry/falcon/issues/1963>`__)
- When a request was streamed using the chunked transfer encoding (with no
``Content-Length`` known in advance), iterating over
:attr:`req.stream <falcon.asgi.Request.stream>` could hang until the client had
disconnected. This bug has been fixed, and iteration now stops upon receiving
the last body chunk as expected. (`#2024 <https://github.com/falconry/falcon/issues/2024>`__)
Misc
----
- The :func:`~falcon.routing.compile_uri_template` utility method has been
deprecated and will be removed in Falcon 4.0. This function was only employed
in the early versions of the framework, and is expected to have been fully
supplanted by the :class:`~falcon.routing.CompiledRouter`. In the unlikely case
it is still in active use, its source code can be simply copied into an
affected application. (`#1967 <https://github.com/falconry/falcon/issues/1967>`__)
Contributors to this Release
----------------------------
Many thanks to all the contributors for this release!
- `abidahmadq <https://github.com/abidahmadq>`__
- `andriyor <https://github.com/andriyor>`__
- `CaselIT <https://github.com/CaselIT>`__
- `Contessina <https://github.com/Contessina>`__
- `dflss <https://github.com/dflss>`__
- `dimucciojonathan <https://github.com/dimucciojonathan>`__
- `forana <https://github.com/forana>`__
- `kgriffs <https://github.com/kgriffs>`__
- `laurent-chriqui <https://github.com/laurent-chriqui>`__
- `maxking <https://github.com/maxking>`__
- `mgorny <https://github.com/mgorny>`__
- `mihaitodor <https://github.com/mihaitodor>`__
- `nix010 <https://github.com/nix010>`__
- `signalw <https://github.com/signalw>`__
- `the-bets <https://github.com/the-bets>`__
- `tipabu <https://github.com/tipabu>`__
- `treharne <https://github.com/treharne>`__
- `vgerak <https://github.com/vgerak>`__
- `vytas7 <https://github.com/vytas7>`__
|
