Change #272051

Comments

websockets: buffer ugprade data at connection level
When the HTTP Upgrade to websockets already carries ws frame data,
buffer that data at connection level and not in the ws decoder.

Adding new cfilter `cf_recvbuf` to buffer a fixed amont of data
to be received later. When the data is received, the filter
passes further recv call through to its subfilter.

Fixes #22107
Reported-by: sideshowbarker on github
Closes #22111

Changed files

• lib/Makefile.inc
• lib/cf-recvbuf.c
• lib/cf-recvbuf.h
• lib/cfilters.c
• lib/cfilters.h
• lib/curl_trc.c
• lib/ws.c