socks5 with DNS-requests

[zeiha]

Checklist

• I'm reporting a feature request
• I've verified that I'm running youtube-dl version 2021.12.17
• I've searched the bugtracker for similar feature requests including closed ones

Description

Using SOCKS-proxy (e.g. socks5://) is already implemented meanwhile, but unfortunately it does not work with DNS-requests (e.g. socks5h://). Is there a possibility to include this "feature"...?

[dirkf]

Basically we rely on the proxy support in the standard library. I suspect that this is not supported with the modules that we use and would be hard to implement. You might be able to achieve what you want by configuring a separate web proxy that understands socks5h as the proxy for yt-dl.

[dirkf]

I'd be happy to consider a PR based on https://github.com/SeaHOH/extproxy as an optional dependency.

This could also address #32549 and some other historic proxy issues.