tree b5e35ae47cb93c2886547de135bf01fe2df32770
parent bef64b23b7e7b4cdcfa201f17053ee58f43c6802
author Christopher Faulet <cfaulet@haproxy.com> 1646663506 +0100
committer Christopher Faulet <cfaulet@haproxy.com> 1646760467 +0100

BUG/MEDIUM: stream: Use the front analyzers for new listener-less streams

For now, for a stream, request analyzers are set at 2 stages. The first one
is when the stream is created. The session's listener analyzers, if any, are
set on the request channel. In addition, some HTTP analyzers are set for HTX
streams (AN_REQ_WAIT_HTTP and AN_REQ_HTTP_PROCESS_FE). The second one is
when the backend is set on the stream. At the stage, request analyzers are
updated using the backend settings.

It is an issue for client applets because there is no listener attached to
the stream. In addtion, it may have no specific/dedicated backend. Thus,
several request analyzers are missing. Among others, the HTTP analyzers for
HTTP applets. The HTTP client is the only one affected for now.

To fix the bug, when a stream is created without a listener, we use the
frontend to set the request analyzers. Note that there is no issue with the
response channel because its analyzers are set when the server connection is
established.

This patch may be backported to all stable versions. Because only the HTTP
client is affected, it must at least be backported to 2.5. It is related to
the issue #1593.