Waitress WSGI server
Project description
Waitress is a production-quality pure-Python WSGI server with very acceptable performance. It has no dependencies except ones which live in the Python standard library. It runs on CPython on Unix and Windows under Python 3.9+. It is also known to run on PyPy 3 (version 3.9 compatible python and above) on UNIX. It supports HTTP/1.0 and HTTP/1.1.
For more information, see the “docs” directory of the Waitress package or visit https://docs.pylonsproject.org/projects/waitress/en/latest/
3.0.2 (2024-11-16)
Security
When using Waitress to process trusted proxy headers, Waitress will now update the headers to drop any untrusted values, thereby making sure that WSGI apps only get trusted and validated values that Waitress itself used to update the environ. See https://github.com/Pylons/waitress/pull/452 and https://github.com/Pylons/waitress/issues/451
3.0.1 (2024-10-28)
Backward Incompatibilities
Python 3.8 is no longer supported. See https://github.com/Pylons/waitress/pull/445.
Features
Added support for Python 3.13. See https://github.com/Pylons/waitress/pull/445.
Security
Fix a bug that would lead to Waitress busy looping on select() on a half-open socket due to a race condition that existed when creating a new HTTPChannel. See https://github.com/Pylons/waitress/pull/435, https://github.com/Pylons/waitress/issues/418 and https://github.com/Pylons/waitress/security/advisories/GHSA-3f84-rpwh-47g6
With thanks to Dylan Jay and Dieter Maurer for their extensive debugging and helping track this down.
No longer strip the header values before passing them to the WSGI environ. See https://github.com/Pylons/waitress/pull/434 and https://github.com/Pylons/waitress/issues/432
Fix a race condition in Waitress when channel_request_lookahead is enabled that could lead to HTTP request smuggling.
See https://github.com/Pylons/waitress/security/advisories/GHSA-9298-4cf8-g4wj
3.0.0 (2024-02-04)
Rename “master” git branch to “main”
Fix a bug that would appear on macOS whereby if we accept() a socket that is already gone, setting socket options would fail and take down the server. See https://github.com/Pylons/waitress/pull/399
Fixed testing of vendored asyncore code to not rely on particular naming for errno’s. See https://github.com/Pylons/waitress/pull/397
HTTP Request methods and versions are now validated to meet the HTTP standards thereby dropping invalid requests on the floor. See https://github.com/Pylons/waitress/pull/423
No longer close the connection when sending a HEAD request response. See https://github.com/Pylons/waitress/pull/428
Always attempt to send the Connection: close response header when we are going to close the connection to let the remote know in more instances. https://github.com/Pylons/waitress/pull/429
Python 3.7 is no longer supported. Add support for Python 3.11, 3.12 and PyPy 3.9, 3.10. See https://github.com/Pylons/waitress/pull/412
Document that trusted_proxy may be set to a wildcard value to trust all proxies. See https://github.com/Pylons/waitress/pull/431
Updated Defaults
clear_untrusted_proxy_headers is set to True by default. See https://github.com/Pylons/waitress/pull/370
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