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"""
Unit tests for the DirectoryAuthority of stem.descriptor.networkstatus.
"""
import unittest
from stem.descriptor.networkstatus import DirectoryAuthority
from test.mocking import get_directory_authority, get_key_certificate, AUTHORITY_HEADER
class TestDirectoryAuthority(unittest.TestCase):
def test_minimal_consensus_authority(self):
"""
Parses a minimal directory authority for a consensus.
"""
authority = get_directory_authority()
self.assertEqual('turtles', authority.nickname)
self.assertEqual('27B6B5996C426270A5C95488AA5BCEB6BCC86956', authority.fingerprint)
self.assertEqual('no.place.com', authority.hostname)
self.assertEqual('76.73.17.194', authority.address)
self.assertEqual(9030, authority.dir_port)
self.assertEqual(9090, authority.or_port)
self.assertEqual(False, authority.is_legacy)
self.assertEqual('Mike Perry <email>', authority.contact)
self.assertEqual('0B6D1E9A300B895AA2D0B427F92917B6995C3C1C', authority.vote_digest)
self.assertEqual(None, authority.legacy_dir_key)
self.assertEqual(None, authority.key_certificate)
self.assertEqual([], authority.get_unrecognized_lines())
def test_minimal_vote_authority(self):
"""
Parses a minimal directory authority for a vote.
"""
authority = get_directory_authority(is_vote = True)
self.assertEqual('turtles', authority.nickname)
self.assertEqual('27B6B5996C426270A5C95488AA5BCEB6BCC86956', authority.fingerprint)
self.assertEqual('no.place.com', authority.hostname)
self.assertEqual('76.73.17.194', authority.address)
self.assertEqual(9030, authority.dir_port)
self.assertEqual(9090, authority.or_port)
self.assertEqual(False, authority.is_legacy)
self.assertEqual('Mike Perry <email>', authority.contact)
self.assertEqual(None, authority.vote_digest)
self.assertEqual(None, authority.legacy_dir_key)
self.assertEqual(get_key_certificate(), authority.key_certificate)
self.assertEqual([], authority.get_unrecognized_lines())
def test_unrecognized_line(self):
"""
Includes unrecognized content in the descriptor.
"""
authority = get_directory_authority({'pepperjack': 'is oh so tasty!'})
self.assertEquals(['pepperjack is oh so tasty!'], authority.get_unrecognized_lines())
def test_legacy_authority(self):
"""
Parses an authority using the '-legacy' format.
"""
content = 'dir-source gabelmoo-legacy 81349FC1F2DBA2C2C11B45CB9706637D480AB913 212.112.245.170 212.112.245.170 80 443'
authority = DirectoryAuthority(content, is_vote = False)
self.assertEqual('gabelmoo-legacy', authority.nickname)
self.assertEqual('81349FC1F2DBA2C2C11B45CB9706637D480AB913', authority.fingerprint)
self.assertEqual('212.112.245.170', authority.hostname)
self.assertEqual('212.112.245.170', authority.address)
self.assertEqual(80, authority.dir_port)
self.assertEqual(443, authority.or_port)
self.assertEqual(True, authority.is_legacy)
self.assertEqual(None, authority.contact)
self.assertEqual(None, authority.vote_digest)
self.assertEqual(None, authority.legacy_dir_key)
self.assertEqual(None, authority.key_certificate)
self.assertEqual([], authority.get_unrecognized_lines())
def test_first_line(self):
"""
Includes a non-mandatory field before the 'dir-source' line.
"""
content = b'ho-hum 567\n' + get_directory_authority(content = True)
self.assertRaises(ValueError, DirectoryAuthority, content)
authority = DirectoryAuthority(content, False)
self.assertEqual('turtles', authority.nickname)
self.assertEqual(['ho-hum 567'], authority.get_unrecognized_lines())
def test_missing_fields(self):
"""
Parse an authority where a mandatory field is missing.
"""
for excluded_field in ('dir-source', 'contact'):
content = get_directory_authority(exclude = (excluded_field,), content = True)
self.assertRaises(ValueError, DirectoryAuthority, content)
authority = DirectoryAuthority(content, False)
if excluded_field == 'dir-source':
self.assertEqual('Mike Perry <email>', authority.contact)
else:
self.assertEqual('turtles', authority.nickname)
def test_blank_lines(self):
"""
Includes blank lines, which should be ignored.
"""
authority = get_directory_authority({'dir-source': AUTHORITY_HEADER[0][1] + '\n\n\n'})
self.assertEqual('Mike Perry <email>', authority.contact)
def test_duplicate_lines(self):
"""
Duplicates linesin the entry.
"""
lines = get_directory_authority(content = True).split(b'\n')
for index, duplicate_line in enumerate(lines):
content = b'\n'.join(lines[:index] + [duplicate_line] + lines[index:])
self.assertRaises(ValueError, DirectoryAuthority, content)
authority = DirectoryAuthority(content, False)
self.assertEqual('turtles', authority.nickname)
def test_missing_dir_source_field(self):
"""
Excludes fields from the 'dir-source' line.
"""
for missing_value in AUTHORITY_HEADER[0][1].split(' '):
dir_source = AUTHORITY_HEADER[0][1].replace(missing_value, '').replace(' ', ' ')
content = get_directory_authority({'dir-source': dir_source}, content = True)
self.assertRaises(ValueError, DirectoryAuthority, content)
authority = DirectoryAuthority(content, False)
self.assertEqual(None, authority.nickname)
self.assertEqual(None, authority.fingerprint)
self.assertEqual(None, authority.hostname)
self.assertEqual(None, authority.address)
self.assertEqual(None, authority.dir_port)
self.assertEqual(None, authority.or_port)
def test_malformed_fingerprint(self):
"""
Includes a malformed fingerprint on the 'dir-source' line.
"""
test_values = (
'',
'zzzzz',
'zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz',
)
for value in test_values:
dir_source = AUTHORITY_HEADER[0][1].replace('27B6B5996C426270A5C95488AA5BCEB6BCC86956', value)
content = get_directory_authority({'dir-source': dir_source}, content = True)
self.assertRaises(ValueError, DirectoryAuthority, content)
authority = DirectoryAuthority(content, False)
self.assertEqual(value, authority.fingerprint)
def test_malformed_address(self):
"""
Includes a malformed ip address on the 'dir-source' line.
"""
test_values = (
'',
'71.35.150.',
'71.35..29',
'71.35.150',
'71.35.150.256',
'[fd9f:2e19:3bcf::02:9970]',
)
for value in test_values:
dir_source = AUTHORITY_HEADER[0][1].replace('76.73.17.194', value)
content = get_directory_authority({'dir-source': dir_source}, content = True)
self.assertRaises(ValueError, DirectoryAuthority, content)
authority = DirectoryAuthority(content, False)
self.assertEqual(value, authority.address)
def test_malformed_port(self):
"""
Includes a malformed orport or dirport on the 'dir-source' line.
"""
test_values = (
'',
'-1',
'399482',
'blarg',
)
for value in test_values:
for include_or_port in (False, True):
for include_dir_port in (False, True):
if not include_or_port and not include_dir_port:
continue
dir_source = AUTHORITY_HEADER[0][1]
if include_or_port:
dir_source = dir_source.replace('9090', value)
if include_dir_port:
dir_source = dir_source.replace('9030', value)
content = get_directory_authority({'dir-source': dir_source}, content = True)
self.assertRaises(ValueError, DirectoryAuthority, content)
authority = DirectoryAuthority(content, False)
expected_value = 399482 if value == '399482' else None
actual_value = authority.or_port if include_or_port else authority.dir_port
self.assertEqual(expected_value, actual_value)
def test_legacy_dir_key(self):
"""
Includes a 'legacy-dir-key' line with both valid and invalid content.
"""
test_value = '65968CCB6BECB5AA88459C5A072624C6995B6B72'
authority = get_directory_authority({'legacy-dir-key': test_value}, is_vote = True)
self.assertEqual(test_value, authority.legacy_dir_key)
# check that we'll fail if legacy-dir-key appears in a consensus
content = get_directory_authority({'legacy-dir-key': test_value}, content = True)
self.assertRaises(ValueError, DirectoryAuthority, content)
test_values = (
'',
'zzzzz',
'zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz',
)
for value in test_values:
content = get_directory_authority({'legacy-dir-key': value}, content = True)
self.assertRaises(ValueError, DirectoryAuthority, content)
authority = DirectoryAuthority(content, False)
self.assertEqual(value, authority.legacy_dir_key)
def test_key_certificate(self):
"""
Includes or exclude a key certificate from the directory entry.
"""
key_cert = get_key_certificate(content = True)
# include a key cert with a consensus
content = get_directory_authority(content = True) + b'\n' + key_cert
self.assertRaises(ValueError, DirectoryAuthority, content)
authority = DirectoryAuthority(content, False)
self.assertEqual('turtles', authority.nickname)
# exclude key cert from a vote
content = get_directory_authority(content = True, is_vote = True).replace(b'\n' + key_cert, b'')
self.assertRaises(ValueError, DirectoryAuthority, content, True, True)
authority = DirectoryAuthority(content, False, True)
self.assertEqual('turtles', authority.nickname)
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