Tor's `create_ephemeral_hidden_service`

[thomaseizinger]

Tor supports "ephemeral hidden services": https://stem.torproject.org/api/control.html#stem.control.Controller.create_ephemeral_hidden_service

Not sure if it is in the scope of this project, but creating an ephemeral hidden service would - I think - allow for a much nicer API where the transport can manage the life-cycle of the transport and know about all the mappings etc.

It would then obviously be a Tor-specific transport but as described in #1 this transport is already specific to Tor, it just not obvious from the name :)

I think there are two main use-cases here:

• Have a general-purpose socks5 transport. If we can land Remove onion_map #2 and Only supports Tor target addresses #1, I think that is achieved. Such a general-purpose socks5 transport allows users to use self-managed Tor hidden services.
• Have a dedicated Tor transport that uses ephemeral hidden services and manages them completely by itself.