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The flag HLUA_TXN_HTTP_RDY was added in the previous commit to know when a function is called for a channel with a valid HTTP message or not. Of course it also depends on the calling direction. In this commit, we allow the execution of functions of the HTTP class only if this flag is set. Nobody seems to use them from an unsupported context (for instance, trying to set an HTTP header from a tcp-request rule). But it remains a bug leading to undefined behaviors or crashes. This patch may be backported to all versions since the 1.6. It depends on the commits "MINOR: hlua: Add a flag on the lua txn to know in which context it can be used" and "MINOR: hlua: Don't set request analyzers on response channel for lua actions".
The HAProxy documentation has been split into a number of different files for ease of use. 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)