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"""
Unit tests for the stem.exit_policy.ExitPolicyRule class.
"""
import unittest
from stem.exit_policy import AddressType, ExitPolicyRule
class TestExitPolicyRule(unittest.TestCase):
def test_accept_or_reject(self):
self.assertTrue(ExitPolicyRule('accept *:*').is_accept)
self.assertFalse(ExitPolicyRule('reject *:*').is_accept)
invalid_inputs = (
'accept',
'reject',
'accept *:*',
'accept\t*:*',
'accept\n*:*',
'acceptt *:*',
'rejectt *:*',
'blarg *:*',
' *:*',
'*:*',
'',
)
for rule_arg in invalid_inputs:
self.assertRaises(ValueError, ExitPolicyRule, rule_arg)
def test_str_unchanged(self):
# provides a series of test inputs where the str() representation should
# match the input rule
test_inputs = (
'accept *:*',
'reject *:*',
'accept *:80',
'accept *:80-443',
'accept 127.0.0.1:80',
'accept 87.0.0.1/24:80',
'accept 156.5.38.3/255.255.0.255:80',
'accept [FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF]:80',
'accept [FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF]/32:80',
)
for rule_arg in test_inputs:
rule = ExitPolicyRule(rule_arg)
self.assertEquals(rule_arg, str(rule))
def test_str_changed(self):
# some instances where our rule is valid but won't match our str() representation
test_inputs = {
'accept 10.0.0.1/32:80': 'accept 10.0.0.1:80',
'accept 192.168.0.1/255.255.255.0:80': 'accept 192.168.0.1/24:80',
'accept [::]/32:*': 'accept [0000:0000:0000:0000:0000:0000:0000:0000]/32:*',
'accept [::]/128:*': 'accept [0000:0000:0000:0000:0000:0000:0000:0000]:*',
}
for rule_arg, expected_str in test_inputs.items():
rule = ExitPolicyRule(rule_arg)
self.assertEquals(expected_str, str(rule))
def test_valid_wildcard(self):
test_inputs = {
'reject *:*': (True, True),
'reject *:80': (True, False),
'accept 192.168.0.1:*': (False, True),
'accept 192.168.0.1:80': (False, False),
'reject 127.0.0.1/0:*': (True, True),
'reject 127.0.0.1/0.0.0.0:*': (True, True),
'reject 127.0.0.1/16:*': (False, True),
'reject 127.0.0.1/32:*': (False, True),
'reject [0000:0000:0000:0000:0000:0000:0000:0000]/0:80': (True, False),
'reject [0000:0000:0000:0000:0000:0000:0000:0000]/64:80': (False, False),
'reject [0000:0000:0000:0000:0000:0000:0000:0000]/128:80': (False, False),
'accept 192.168.0.1:0-65535': (False, True),
'accept 192.168.0.1:1-65535': (False, True),
'accept 192.168.0.1:2-65535': (False, False),
'accept 192.168.0.1:1-65534': (False, False),
}
for rule_arg, attr in test_inputs.items():
is_address_wildcard, is_port_wildcard = attr
rule = ExitPolicyRule(rule_arg)
self.assertEquals(is_address_wildcard, rule.is_address_wildcard())
self.assertEquals(is_port_wildcard, rule.is_port_wildcard())
# check that when appropriate a /0 is reported as *not* being a wildcard
rule = ExitPolicyRule('reject 127.0.0.1/0:*')
rule._submask_wildcard = False
self.assertEquals(False, rule.is_address_wildcard())
rule = ExitPolicyRule('reject [0000:0000:0000:0000:0000:0000:0000:0000]/0:80')
rule._submask_wildcard = False
self.assertEquals(False, rule.is_address_wildcard())
def test_invalid_wildcard(self):
test_inputs = (
'reject */16:*',
'reject 127.0.0.1/*:*',
'reject *:0-*',
'reject *:*-15',
)
for rule_arg in test_inputs:
self.assertRaises(ValueError, ExitPolicyRule, rule_arg)
def test_wildcard_attributes(self):
rule = ExitPolicyRule('reject *:*')
self.assertEquals(AddressType.WILDCARD, rule.get_address_type())
self.assertEquals(None, rule.address)
self.assertEquals(None, rule.get_mask())
self.assertEquals(None, rule.get_masked_bits())
self.assertEquals(1, rule.min_port)
self.assertEquals(65535, rule.max_port)
def test_valid_ipv4_addresses(self):
test_inputs = {
'0.0.0.0': ('0.0.0.0', '255.255.255.255', 32),
'127.0.0.1/32': ('127.0.0.1', '255.255.255.255', 32),
'192.168.0.50/24': ('192.168.0.50', '255.255.255.0', 24),
'255.255.255.255/0': ('255.255.255.255', '0.0.0.0', 0),
}
for rule_addr, attr in test_inputs.items():
address, mask, masked_bits = attr
rule = ExitPolicyRule('accept %s:*' % rule_addr)
self.assertEquals(AddressType.IPv4, rule.get_address_type())
self.assertEquals(address, rule.address)
self.assertEquals(mask, rule.get_mask())
self.assertEquals(masked_bits, rule.get_masked_bits())
def test_invalid_ipv4_addresses(self):
test_inputs = (
'256.0.0.0',
'-1.0.0.0',
'0.0.0',
'0.0.0.',
'0.0.0.a',
'127.0.0.1/-1',
'127.0.0.1/33',
)
for rule_addr in test_inputs:
self.assertRaises(ValueError, ExitPolicyRule, 'accept %s:*' % rule_addr)
def test_valid_ipv6_addresses(self):
test_inputs = {
'[fe80:0000:0000:0000:0202:b3ff:fe1e:8329]':
('FE80:0000:0000:0000:0202:B3FF:FE1E:8329',
'FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF', 128),
'[FE80::0202:b3ff:fe1e:8329]':
('FE80:0000:0000:0000:0202:B3FF:FE1E:8329',
'FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF', 128),
'[0000:0000:0000:0000:0000:0000:0000:0000]/0':
('0000:0000:0000:0000:0000:0000:0000:0000',
'0000:0000:0000:0000:0000:0000:0000:0000', 0),
'[::]':
('0000:0000:0000:0000:0000:0000:0000:0000',
'FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF', 128),
}
for rule_addr, attr in test_inputs.items():
address, mask, masked_bits = attr
rule = ExitPolicyRule('accept %s:*' % rule_addr)
self.assertEquals(AddressType.IPv6, rule.get_address_type())
self.assertEquals(address, rule.address)
self.assertEquals(mask, rule.get_mask())
self.assertEquals(masked_bits, rule.get_masked_bits())
def test_invalid_ipv6_addresses(self):
test_inputs = (
'fe80::0202:b3ff:fe1e:8329',
'[fe80::0202:b3ff:fe1e:8329',
'fe80::0202:b3ff:fe1e:8329]',
'[fe80::0202:b3ff:fe1e:832g]',
'[fe80:::b3ff:fe1e:8329]',
'[fe80::b3ff::fe1e:8329]',
'[fe80::0202:b3ff:fe1e:8329]/-1',
'[fe80::0202:b3ff:fe1e:8329]/129',
)
for rule_addr in test_inputs:
self.assertRaises(ValueError, ExitPolicyRule, 'accept %s:*' % rule_addr)
def test_valid_ports(self):
test_inputs = {
'0': (0, 0),
'1': (1, 1),
'80': (80, 80),
'80-443': (80, 443),
}
for rule_port, attr in test_inputs.items():
min_port, max_port = attr
rule = ExitPolicyRule('accept 127.0.0.1:%s' % rule_port)
self.assertEquals(min_port, rule.min_port)
self.assertEquals(max_port, rule.max_port)
def test_invalid_ports(self):
test_inputs = (
'65536',
'a',
'5-3',
'5-',
'-3',
)
for rule_port in test_inputs:
self.assertRaises(ValueError, ExitPolicyRule, 'accept 127.0.0.1:%s' % rule_port)
def test_is_match_wildcard(self):
test_inputs = {
'reject *:*': {
('192.168.0.1', 80): True,
('0.0.0.0', 80): True,
('255.255.255.255', 80): True,
('FE80:0000:0000:0000:0202:B3FF:FE1E:8329', 80): True,
('[FE80:0000:0000:0000:0202:B3FF:FE1E:8329]', 80): True,
('192.168.0.1', None): True,
(None, 80, False): True,
(None, 80, True): True,
(None, None, False): True,
(None, None, True): True,
},
'reject 255.255.255.255/0:*': {
('192.168.0.1', 80): True,
('0.0.0.0', 80): True,
('255.255.255.255', 80): True,
('FE80:0000:0000:0000:0202:B3FF:FE1E:8329', 80): False,
('[FE80:0000:0000:0000:0202:B3FF:FE1E:8329]', 80): False,
('192.168.0.1', None): True,
(None, 80, False): True,
(None, 80, True): False,
(None, None, False): True,
(None, None, True): False,
},
}
for rule_arg, matches in test_inputs.items():
rule = ExitPolicyRule(rule_arg)
rule._submask_wildcard = False
for match_args, expected_result in matches.items():
self.assertEquals(expected_result, rule.is_match(*match_args))
# port zero is special in that exit policies can include it, but it's not
# something that we can match against
rule = ExitPolicyRule('reject *:*')
self.assertRaises(ValueError, rule.is_match, '127.0.0.1', 0)
def test_is_match_ipv4(self):
test_inputs = {
'reject 192.168.0.50:*': {
('192.168.0.50', 80): True,
('192.168.0.51', 80): False,
('192.168.0.49', 80): False,
(None, 80, False): True,
(None, 80, True): False,
('192.168.0.50', None): True,
},
'reject 0.0.0.0/24:*': {
('0.0.0.0', 80): True,
('0.0.0.1', 80): True,
('0.0.0.255', 80): True,
('0.0.1.0', 80): False,
('0.1.0.0', 80): False,
('1.0.0.0', 80): False,
(None, 80, False): True,
(None, 80, True): False,
('0.0.0.0', None): True,
},
}
for rule_arg, matches in test_inputs.items():
rule = ExitPolicyRule(rule_arg)
for match_args, expected_result in matches.items():
self.assertEquals(expected_result, rule.is_match(*match_args))
def test_is_match_ipv6(self):
test_inputs = {
'reject [FE80:0000:0000:0000:0202:B3FF:FE1E:8329]:*': {
('FE80:0000:0000:0000:0202:B3FF:FE1E:8329', 80): True,
('fe80:0000:0000:0000:0202:b3ff:fe1e:8329', 80): True,
('[FE80:0000:0000:0000:0202:B3FF:FE1E:8329]', 80): True,
('FE80:0000:0000:0000:0202:B3FF:FE1E:8330', 80): False,
('FE80:0000:0000:0000:0202:B3FF:FE1E:8328', 80): False,
(None, 80, False): True,
(None, 80, True): False,
('FE80:0000:0000:0000:0202:B3FF:FE1E:8329', None): True,
},
'reject [FE80:0000:0000:0000:0202:B3FF:FE1E:8329]/112:*': {
('FE80:0000:0000:0000:0202:B3FF:FE1E:8329', 80): True,
('FE80:0000:0000:0000:0202:B3FF:FE1E:0000', 80): True,
('FE80:0000:0000:0000:0202:B3FF:FE1E:FFFF', 80): True,
('FE80:0000:0000:0000:0202:B3FF:FE1F:8329', 80): False,
('FE81:0000:0000:0000:0202:B3FF:FE1E:8329', 80): False,
(None, 80, False): True,
(None, 80, True): False,
('FE80:0000:0000:0000:0202:B3FF:FE1E:8329', None, False): True,
('FE80:0000:0000:0000:0202:B3FF:FE1E:8329', None, True): True,
},
}
for rule_arg, matches in test_inputs.items():
rule = ExitPolicyRule(rule_arg)
for match_args, expected_result in matches.items():
self.assertEquals(expected_result, rule.is_match(*match_args))
def test_is_match_port(self):
test_inputs = {
'reject *:80': {
('192.168.0.50', 80): True,
('192.168.0.50', 81): False,
('192.168.0.50', 79): False,
(None, 80): True,
('192.168.0.50', None, False): True,
('192.168.0.50', None, True): False,
},
'reject *:80-85': {
('192.168.0.50', 79): False,
('192.168.0.50', 80): True,
('192.168.0.50', 83): True,
('192.168.0.50', 85): True,
('192.168.0.50', 86): False,
(None, 83): True,
('192.168.0.50', None, False): True,
('192.168.0.50', None, True): False,
},
}
for rule_arg, matches in test_inputs.items():
rule = ExitPolicyRule(rule_arg)
for match_args, expected_result in matches.items():
self.assertEquals(expected_result, rule.is_match(*match_args))
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