Suggest: add Access Logging option to show `X-Forwarded-For`

[harobed]

Suggest: add Access Logging option to show X-Forwarded-For

Exemple %f option return X-Forwarded-For value or Remote IP-address if X-Forwarded-For don't exist.

[asvetlov]

I suggest another change: pass request instead of message into AccessLogger.log (since aiohttp 2.0 web_protocol.RequestHandler always create a request instance.
In turn web.BaseRequest has req.host property, the property respects both Forwarded and X-FORWARDED-HOST headers.

[asvetlov]

@harobed do you want to make a PR for implementing my proposal?

[harobed]

Yes, maybe this evening.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a [new issue] for related bugs.
If you feel like there's important points made in this discussion, please include those exceprts into that [new issue].
[new issue]: https://github.com/aio-libs/aiohttp/issues/new