There are now three ways to invoke send:
* "wormhole send": ask for a text message
* "wormhole send FILENAME": send a file
* "wormhole send --text TEXT": send text message
* declare transit records and handshake keys are bytes, not str
* declare transit connection hints to be str
* use six.moves.socketserver, six.moves.input for Verifier query
* argparse "--version" writes to stderr on py2, stdout on py3
* avoid xrange(), use subprocess.Popen(universal_newlines=True)
* use modern/portable "next(iter)" instead of "iter.next()"
* use six.moves.input() instead of raw_input()
* tell requests' Response.iter_lines that we want str, not bytes
The twisted.python.logfile in Twisted-15.4.0 is not yet compatible with
py3, but can be bypassed by not daemonizing the server (so it doesn't
write to a logfile). This has been fixed in twisted trunk, so when
15.4.1 or 15.5.0 comes out, this will no longer be needed. But I think
we'll leave it in place, since sometimes it's handy to run a server
without daemonization.
Just make up a code like NUMBER-STUFF, and add --code= to the
send-text/send-file command. Also don't use tab-completion on the
codewords part of the receiving side, unless you stuck to the even/odd
PGP wordlist. (tab still works for the channel-id).
To be useful, both sides must add -v. If the sender uses -v but the
receiver doesn't, the receiver won't show the verification string, so
the sender can't compare it to anything (and must either abort the
transfer or accept it blindly). Maybe the receiver should show the
verification string unconditionally. Maybe the sender should
indicate (in unprotected plaintext, along with the PAKE message) whether
the receiver should show it or not.
We used to use twisted.python.usage.Options, hence we depended upon
Twisted. Now we depend upon "argparse" instead, which is in the py2.7
stdlib (and on pypi for 2.6). This package will still (eventually)
provide Twisted support, but applications which need it will already
express a dependency on twisted themselves, so by removing the
dependency here, we make life easier for applications that don't use it.
