Comparing Directory Authority FlagsΒΆ
Compares the votes of two directory authorities, in this case moria1 and maatuska, with a special interest in the 'Running' flag.
import collections
import stem.descriptor
import stem.descriptor.remote
import stem.directory
# Query all authority votes asynchronously.
downloader = stem.descriptor.remote.DescriptorDownloader(
document_handler = stem.descriptor.DocumentHandler.DOCUMENT,
)
# An ordered dictionary ensures queries are finished in the order they were
# added.
queries = collections.OrderedDict()
for name, authority in stem.directory.Authority.from_cache().items():
if authority.v3ident is None:
continue # authority doesn't vote if it lacks a v3ident
queries[name] = downloader.get_vote(authority)
# Wait for the votes to finish being downloaded, this produces a dictionary of
# authority nicknames to their vote.
votes = dict((name, query.run()[0]) for (name, query) in queries.items())
# Get a superset of all the fingerprints in all the votes.
all_fingerprints = set()
for vote in votes.values():
all_fingerprints.update(vote.routers.keys())
# Finally, compare moria1's votes to maatuska's votes.
for fingerprint in all_fingerprints:
moria1_vote = votes['moria1'].routers.get(fingerprint)
maatuska_vote = votes['maatuska'].routers.get(fingerprint)
if not moria1_vote and not maatuska_vote:
print("both moria1 and maatuska haven't voted about %s" % fingerprint)
elif not moria1_vote:
print("moria1 hasn't voted about %s" % fingerprint)
elif not maatuska_vote:
print("maatuska hasn't voted about %s" % fingerprint)
elif 'Running' in moria1_vote.flags and 'Running' not in maatuska_vote.flags:
print("moria1 has the Running flag but maatuska doesn't: %s" % fingerprint)
elif 'Running' in maatuska_vote.flags and 'Running' not in moria1_vote.flags:
print("maatuska has the Running flag but moria1 doesn't: %s" % fingerprint)
% python compare_flags.py
maatuska has the Running flag but moria1 doesn't: 92FCB6748A40E6088E22FBAB943AB2DD743EA818
maatuska has the Running flag but moria1 doesn't: 6871F682350BA931838C0EC1E4A23044DAE06A73
maatuska has the Running flag but moria1 doesn't: E2BB13AA2F6960CD93ABE5257A825687F3973C62
moria1 has the Running flag but maatuska doesn't: 546C54E2A89D88E0794D04AECBF1AC8AC9DA81DE
moria1 has the Running flag but maatuska doesn't: DCAEC3D069DC39AAE43D13C8AF31B5645E05ED61
...