tree fb69dc8c846ce36cb4d46ecb0cefbba3c9abcb05
parent e56ccb77575c54302d3b465ca03d516fbc734b06
author Andy Green <andy@warmcat.com> 1551172704 +0800
committer Andy Green <andy@warmcat.com> 1552176122 +0800

ah: custom headers for h1

Until now lws only parses headers it knows at build-time from its
prebuilt lexical analyzer.

This adds an on-by-default cmake option and a couple of apis
to also store and query "custom", ie, unknown-to-lws headers.

A minimal example is also provided.

At the moment it only works on h1, h2 support needs improvements
to the hpack implementation.

Since it bloats ah memory usage compared to without it if custom
headers are present, the related code and ah footprint can be
disabled with the cmake option LWS_WITH_CUSTOM_HEADERS, but it's
on by default normally.  ESP32 platform disables it.

https://github.com/warmcat/libwebsockets/pull/1499