This provides a clear error in case the user doesn't have an internet
connection at all, or something is so broken with their DNS or routing that
they can't reach the server. I think this is better than waiting and
retrying (silently) forever.
If the first connection succeeds, but is then lost, subsequent retries occur
without fanfare.
closes#68
Versioneer wants git cli installed so it can ask about git revision
info. So, install it.
Versioneer also cares about the name of the source directory. So,
change it.
This gets us a version number like "0.9.2+257.g48b1f02" which is at
least better than "0+unknown".
This shifts most reponsibility to the new txtorcon "Controller" object, where
it belongs. We no longer need a list of likely control-port locations, nor do
we need to keep track of the SOCKS port ourselves.
The one downside is that if a control-port is not reachable, then this does
not fall back to using a plain SOCKS port (usually tcp:localhost:9050).
txtorcon no longer uses txsocksx, so it no longer advertises a simple way to
use Tor without the control port. This shouldn't affect users who run the
TorBrowserBundle, or who are running a tor daemon which they can control
directly, but it may break for users who want to use a pre-existing tor
daemon that they don't have permissions to speak control-port to.
We used to avoid this on py3, but now that txtorcon (0.19.2) is compatible
with it, we can use it on both. This also means tests can rely on having
txtorcon available.
This fixes#145. I thought it would add a roundtrip, but it turns out that
websockets were already adding the same delay, so I can't avoid it without
switching from websockets to raw TCP. Closes#145.
This renames all the existing API methods, to use a consistent
"d=get_XYZ()" (for Deferred mode) or "dg.wormhole_got_XYZ()" (for Delegated
mode). It updates cmd_send/cmd_receive/cmd_ssh to use the new API.
Since we now have get_welcome(), apps handle the Welcome message with a
Deferred callback instead of registering a "welcome handler". This lets us
make sure we've finished printing any server message-of-the-day or "you
should update your client" message to stdout before using stdio to ask for
the wormhole code. (Previously, the code-input prompt was overwritten by the
server message, and it was ugly). refs #145. This approach adds an extra
roundtrip to the receiver, but we can fix that (see #145 for details).
Because of that change, the server-is-being-slow message is printed at a
slightly different time, so those tests needed some extra work to exercise it
properly.
The code in util.py can tolerate a missing os.statvfs, but the code which
tests that code's ability to tolerate a missing os.statvfs was itself unable
to tolerate a missing os.statvfs. Sigh.
