24dd7154a6
As reported by Pierre Maoui in GH #2477, it's not possible to render control chars from variables or expressions verbatim in the payload part of http-return statements. That's a problem because this part should not require to be encoded at all (we could even imagine building favicons on the fly for example). In fact it is the LOG_OPT_HTTP option when passed as default options on parse_logformat_string() which tells the log encoder that the payload should be http-encoded using lf_chunk() instead of being printed using the per-type encoder. This option was set when parsing logformat expressions for lf-string expression under http-return statements, as well as logformat expressions for set-map action. While it is true that those actions may only be used under http context, the LOG_OPT_HTTP logformat option is not relevant there, because the payload is expected to be used without being encoded. So let's simply get rid of this option when parsing logformat expressions for set-map action key/value and lf-string from http-request return action, and add a note next to LOG_OPT_HTTP option to indicate that it is used to tell the log encoder that the payload should be HTTP-encoded. Thanks to Pierre for having reported the issue and Willy for the analysis and patch proposal.
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.