b52a0e6782
As reported by Huangbin Zhan in github issue #3355, we're too lax on the :protocol pseudo header. It is currently accepted with regular CONNECT as well as non-CONNECT methods while it only ought to be accepted with extended CONNECT (i.e. CONNECT after the connection negotiated the RFC8441 extension). Let's refine the check in H2 by leveraging the new flag H2_MSGF_EXT_CONN_OK that is passed by the caller when the connection supports the extension. This is sufficient to sort the various cases. The proto upgrade regtest was updated to verify that CONNECT with :protocol without nego and another method with nego and :protocol both fail. Thanks to Huangbin Zhan (@zhanhb) for the report and helpful reproducer. This needs to be backported to all versions. It relies on these patches first: REGTESTS: http-messaging: always send RFC8441 client settings to use ext connect BUG/MINOR: mux-h2: condition the processing of 8441 extension to global setting MINOR: mux-h2: add a new message flag to indicate ext connect support |
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HAProxy
HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.
Installation
The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.
Getting help
The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.
The issue tracker is only for bug reports or feature requests.
Documentation
The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.
Please refer to the following files depending on what you're looking for:
- INSTALL for instructions on how to build and install HAProxy
- BRANCHES to understand the project's life cycle and what version to use
- LICENSE for the project's license
- CONTRIBUTING for the process to follow to submit contributions
The more detailed documentation is located into the doc/ directory:
- doc/intro.txt for a quick introduction on HAProxy
- doc/configuration.txt for the configuration's reference manual
- doc/lua.txt for the Lua's reference manual
- doc/SPOE.txt for how to use the SPOE engine
- doc/network-namespaces.txt for how to use network namespaces under Linux
- doc/management.txt for the management guide
- doc/regression-testing.txt for how to use the regression testing suite
- doc/peers.txt for the peers protocol reference
- doc/coding-style.txt for how to adopt HAProxy's coding style
- doc/internals for developer-specific documentation (not all up to date)
License
HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.