This makes a whole lot of our code simpler, and makes it so that
CircMgr and DirMgr no longer need to have anything parameterized
over transports, either.
Instead of boxing Transport inside of ChanMgr, I've made a new
Connection trait that goes from a ChanTarget* straight to a Channel.
This lets us avoid having to box the intermediate TLS object.
[*] Actually, a copy of the information from a ChanTarget. Ick, but
I had to make a copy to avoid parameterizing
Connecter::build_channel.
This adds two timeouts in total: one for sending begin, and getting
headers, and one for getting the rest of the data.
These timeouts are way too long right now, but at least the code is
there.
Some requests are still useful when we get only a partial response
-- like those where we're asking for a bunch of documents at once.
For those, we should return any nonempty partial result.
This code can now bootstrap from the network, cache the results, and
reload from cache.
There's lots more work to do here, including a big pile of tidying
and refactoring and testing and documentation.
It can send a GET request on a circuit, get an answer, and
decompress it with zlib.
It will need documentation and tests eventually, as well as serious
refactoring.
Nick Mathewson
owen66
George Kadianakis