[HttpProtocolHandler] Access logs must be logged after request completion (not after connection close)

[abhinavsingh]

Summarized below are the cases that we need to handle to individually log h1 pipeline/h2 stream access logs as they finish and not after the connection is closed.

TL;DR

Except for Proxy Tunnel scenarios, we can always achieve the objective of this task.

Proxy Tunnel

In scenarios where client is establishing a HTTPS tunnel to upstream server, there is no way to detect when a certain (h1 pipelines/h2 stream) request has finished.

In TLS Interception mode, yes we can.

HTTP Proxy

For HTTP request proxy, yes we can.

Web Server

For web servers, yes we can.