There's ProxyQueue, but no ProxyAuth. It would be a nice feature.
Regarding how to implement this, icgood said on IRC:
regarding your question about authentication.. it's not straightforward, no, but it is do-able.. what you'd do is create a new ServerMechanism whose server_attempt() method simply passes the response string through to the proxy server
It seems more complex to me: the client should know which mechanism types are available before the authentication starts.
There's ProxyQueue, but no ProxyAuth. It would be a nice feature.
Regarding how to implement this, icgood said on IRC:
It seems more complex to me: the client should know which mechanism types are available before the authentication starts.