As required by changing the result version, this is a "major" version
bump. There are many changes since the last version of sbws, but we
aren't being good about recording those yet. Sorry.

Part of this takes care of... GH: closes #145

to make it less confussing.
Note that stem call it ed25519_master_key instead of
master_key_ed25519, but dir-spec.txt uses master-key-ed25519, which
is the term chosen here.

Add Relay abstraction layer and function to obtain relay ed25519

Matt Traudt authored Jun 07, 2018 and juga committed Jun 10, 2018

node_id=$B058ABB695524A11D0FE958C0F8AA7963FD4258C bw=5685 nick=exit2 rtt=139 time=2018-06-08T01:06:27 ed25519=g+Shk00y9Md0hg1S6ptnuc/wWKbADBgdjT0Kg+TSF3s

Matt Traudt authored Jun 07, 2018 and juga committed Jun 10, 2018

With unused support for ed25519 keys

* RelayList is now a list of RelayNS instead of RouterStatusEntryV3
  to have master_key_ed25519 as an attribute
* create pytest fixture to start Tor with tests
* create test to check master_key_ed25519

Thanks!

* Use keyserver pool to avoid single server timeout

travis test failed because keys.gnupg.net timeout.
It should not be the case using the pool.

That way it will be obvious that sbws isn't really going to try to
log to /nonexist and that sbws must set this option for real elsewhere.

2018-06-06 04:42:03 ERROR Thread-5 scanner.py:225 - dispatch_worker_thread - Unhandled exception in worker thread
Traceback (most recent call last):
  File "/home/pastly/src/simple-bw-scanner/sbws/core/scanner.py", line 223, in dispatch_worker_thread
    return measure_relay(*a, **kw)
  File "/home/pastly/src/simple-bw-scanner/sbws/core/scanner.py", line 138, in measure_relay
    dest = destinations.next()
  File "/home/pastly/src/simple-bw-scanner/sbws/lib/destination.py", line 222, in next
    self._perform_usability_test()
  File "/home/pastly/src/simple-bw-scanner/sbws/lib/destination.py", line 171, in _perform_usability_test
    circ_id = self._cb.build_circuit([None, exit.fingerprint])
  File "/home/pastly/src/simple-bw-scanner/sbws/lib/circuitbuilder.py", line 175, in build_circuit
    for r in path]
  File "/home/pastly/src/simple-bw-scanner/sbws/lib/circuitbuilder.py", line 175, in <listcomp>
    for r in path]
AttributeError: 'NoneType' object has no attribute 'fingerprint'
2018-06-06 04:42:03 ERROR Thread-10 scanner.py:280 - closure - Unhandled exception caught while measuring torbogen: <class 'AttributeError'> 'NoneType' object has no attribute 'fingerprint'

also, convert types to int when generating line from str