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"""Tests for acme.challenges."""
import sys
import unittest
from unittest import mock
import urllib.parse as urllib_parse
import josepy as jose
from josepy.jwk import JWKEC
import OpenSSL
import pytest
import requests
from acme import errors
from acme._internal.tests import test_util
CERT = test_util.load_comparable_cert('cert.pem')
KEY = jose.JWKRSA(key=test_util.load_rsa_private_key('rsa512_key.pem'))
class ChallengeTest(unittest.TestCase):
def test_from_json_unrecognized(self):
from acme.challenges import Challenge
from acme.challenges import UnrecognizedChallenge
chall = UnrecognizedChallenge({"type": "foo"})
assert chall == Challenge.from_json(chall.jobj)
class UnrecognizedChallengeTest(unittest.TestCase):
def setUp(self):
from acme.challenges import UnrecognizedChallenge
self.jobj = {"type": "foo"}
self.chall = UnrecognizedChallenge(self.jobj)
def test_to_partial_json(self):
assert self.jobj == self.chall.to_partial_json()
def test_from_json(self):
from acme.challenges import UnrecognizedChallenge
assert self.chall == UnrecognizedChallenge.from_json(self.jobj)
class KeyAuthorizationChallengeResponseTest(unittest.TestCase):
def setUp(self):
def _encode(name):
assert name == "token"
return "foo"
self.chall = mock.Mock()
self.chall.encode.side_effect = _encode
def test_verify_ok(self):
from acme.challenges import KeyAuthorizationChallengeResponse
response = KeyAuthorizationChallengeResponse(
key_authorization='foo.oKGqedy-b-acd5eoybm2f-NVFxvyOoET5CNy3xnv8WY')
assert response.verify(self.chall, KEY.public_key())
def test_verify_wrong_token(self):
from acme.challenges import KeyAuthorizationChallengeResponse
response = KeyAuthorizationChallengeResponse(
key_authorization='bar.oKGqedy-b-acd5eoybm2f-NVFxvyOoET5CNy3xnv8WY')
assert not response.verify(self.chall, KEY.public_key())
def test_verify_wrong_thumbprint(self):
from acme.challenges import KeyAuthorizationChallengeResponse
response = KeyAuthorizationChallengeResponse(
key_authorization='foo.oKGqedy-b-acd5eoybm2f-NVFxv')
assert not response.verify(self.chall, KEY.public_key())
def test_verify_wrong_form(self):
from acme.challenges import KeyAuthorizationChallengeResponse
response = KeyAuthorizationChallengeResponse(
key_authorization='.foo.oKGqedy-b-acd5eoybm2f-'
'NVFxvyOoET5CNy3xnv8WY')
assert not response.verify(self.chall, KEY.public_key())
class DNS01ResponseTest(unittest.TestCase):
def setUp(self):
from acme.challenges import DNS01Response
self.msg = DNS01Response(key_authorization=u'foo')
self.jmsg = {
'resource': 'challenge',
'type': 'dns-01',
'keyAuthorization': u'foo',
}
from acme.challenges import DNS01
self.chall = DNS01(token=(b'x' * 16))
self.response = self.chall.response(KEY)
def test_to_partial_json(self):
assert {} == self.msg.to_partial_json()
def test_from_json(self):
from acme.challenges import DNS01Response
assert self.msg == DNS01Response.from_json(self.jmsg)
def test_from_json_hashable(self):
from acme.challenges import DNS01Response
hash(DNS01Response.from_json(self.jmsg))
def test_simple_verify_failure(self):
key2 = jose.JWKRSA.load(test_util.load_vector('rsa256_key.pem'))
public_key = key2.public_key()
verified = self.response.simple_verify(self.chall, "local", public_key)
assert not verified
def test_simple_verify_success(self):
public_key = KEY.public_key()
verified = self.response.simple_verify(self.chall, "local", public_key)
assert verified
class DNS01Test(unittest.TestCase):
def setUp(self):
from acme.challenges import DNS01
self.msg = DNS01(token=jose.decode_b64jose(
'evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ+PCt92wr+oA'))
self.jmsg = {
'type': 'dns-01',
'token': 'evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ-PCt92wr-oA',
}
def test_validation_domain_name(self):
assert '_acme-challenge.www.example.com' == \
self.msg.validation_domain_name('www.example.com')
def test_validation(self):
assert "rAa7iIg4K2y63fvUhCfy8dP1Xl7wEhmQq0oChTcE3Zk" == \
self.msg.validation(KEY)
def test_to_partial_json(self):
assert self.jmsg == self.msg.to_partial_json()
def test_from_json(self):
from acme.challenges import DNS01
assert self.msg == DNS01.from_json(self.jmsg)
def test_from_json_hashable(self):
from acme.challenges import DNS01
hash(DNS01.from_json(self.jmsg))
class HTTP01ResponseTest(unittest.TestCase):
def setUp(self):
from acme.challenges import HTTP01Response
self.msg = HTTP01Response(key_authorization=u'foo')
self.jmsg = {
'resource': 'challenge',
'type': 'http-01',
'keyAuthorization': u'foo',
}
from acme.challenges import HTTP01
self.chall = HTTP01(token=(b'x' * 16))
self.response = self.chall.response(KEY)
def test_to_partial_json(self):
assert {} == self.msg.to_partial_json()
def test_from_json(self):
from acme.challenges import HTTP01Response
assert self.msg == HTTP01Response.from_json(self.jmsg)
def test_from_json_hashable(self):
from acme.challenges import HTTP01Response
hash(HTTP01Response.from_json(self.jmsg))
def test_simple_verify_bad_key_authorization(self):
key2 = jose.JWKRSA.load(test_util.load_vector('rsa256_key.pem'))
self.response.simple_verify(self.chall, "local", key2.public_key())
@mock.patch("acme.challenges.requests.get")
def test_simple_verify_good_validation(self, mock_get):
validation = self.chall.validation(KEY)
mock_get.return_value = mock.MagicMock(text=validation)
assert self.response.simple_verify(
self.chall, "local", KEY.public_key())
mock_get.assert_called_once_with(self.chall.uri("local"), verify=False,
timeout=mock.ANY)
@mock.patch("acme.challenges.requests.get")
def test_simple_verify_bad_validation(self, mock_get):
mock_get.return_value = mock.MagicMock(text="!")
assert not self.response.simple_verify(
self.chall, "local", KEY.public_key())
@mock.patch("acme.challenges.requests.get")
def test_simple_verify_whitespace_validation(self, mock_get):
from acme.challenges import HTTP01Response
mock_get.return_value = mock.MagicMock(
text=(self.chall.validation(KEY) +
HTTP01Response.WHITESPACE_CUTSET))
assert self.response.simple_verify(
self.chall, "local", KEY.public_key())
mock_get.assert_called_once_with(self.chall.uri("local"), verify=False,
timeout=mock.ANY)
@mock.patch("acme.challenges.requests.get")
def test_simple_verify_connection_error(self, mock_get):
mock_get.side_effect = requests.exceptions.RequestException
assert not self.response.simple_verify(
self.chall, "local", KEY.public_key())
@mock.patch("acme.challenges.requests.get")
def test_simple_verify_port(self, mock_get):
self.response.simple_verify(
self.chall, domain="local",
account_public_key=KEY.public_key(), port=8080)
assert "local:8080" == urllib_parse.urlparse(
mock_get.mock_calls[0][1][0]).netloc
@mock.patch("acme.challenges.requests.get")
def test_simple_verify_timeout(self, mock_get):
self.response.simple_verify(self.chall, "local", KEY.public_key())
mock_get.assert_called_once_with(self.chall.uri("local"), verify=False,
timeout=30)
mock_get.reset_mock()
self.response.simple_verify(self.chall, "local", KEY.public_key(), timeout=1234)
mock_get.assert_called_once_with(self.chall.uri("local"), verify=False,
timeout=1234)
class HTTP01Test(unittest.TestCase):
def setUp(self):
from acme.challenges import HTTP01
self.msg = HTTP01(
token=jose.decode_b64jose(
'evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ+PCt92wr+oA'))
self.jmsg = {
'type': 'http-01',
'token': 'evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ-PCt92wr-oA',
}
def test_path(self):
assert self.msg.path == '/.well-known/acme-challenge/' \
'evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ-PCt92wr-oA'
def test_uri(self):
assert 'http://example.com/.well-known/acme-challenge/' \
'evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ-PCt92wr-oA' == \
self.msg.uri('example.com')
def test_to_partial_json(self):
assert self.jmsg == self.msg.to_partial_json()
def test_from_json(self):
from acme.challenges import HTTP01
assert self.msg == HTTP01.from_json(self.jmsg)
def test_from_json_hashable(self):
from acme.challenges import HTTP01
hash(HTTP01.from_json(self.jmsg))
def test_good_token(self):
assert self.msg.good_token
assert not self.msg.update(token=b'..').good_token
class TLSALPN01ResponseTest(unittest.TestCase):
def setUp(self):
from acme.challenges import TLSALPN01
self.chall = TLSALPN01(
token=jose.b64decode(b'a82d5ff8ef740d12881f6d3c2277ab2e'))
self.domain = u'example.com'
self.domain2 = u'example2.com'
self.response = self.chall.response(KEY)
self.jmsg = {
'resource': 'challenge',
'type': 'tls-alpn-01',
'keyAuthorization': self.response.key_authorization,
}
def test_to_partial_json(self):
assert {} == self.response.to_partial_json()
def test_from_json(self):
from acme.challenges import TLSALPN01Response
assert self.response == TLSALPN01Response.from_json(self.jmsg)
def test_from_json_hashable(self):
from acme.challenges import TLSALPN01Response
hash(TLSALPN01Response.from_json(self.jmsg))
def test_gen_verify_cert(self):
key1 = test_util.load_pyopenssl_private_key('rsa512_key.pem')
cert, key2 = self.response.gen_cert(self.domain, key1)
assert key1 == key2
assert self.response.verify_cert(self.domain, cert)
def test_gen_verify_cert_gen_key(self):
cert, key = self.response.gen_cert(self.domain)
assert isinstance(key, OpenSSL.crypto.PKey)
assert self.response.verify_cert(self.domain, cert)
def test_verify_bad_cert(self):
assert not self.response.verify_cert(self.domain,
test_util.load_cert('cert.pem'))
def test_verify_bad_domain(self):
key1 = test_util.load_pyopenssl_private_key('rsa512_key.pem')
cert, key2 = self.response.gen_cert(self.domain, key1)
assert key1 == key2
assert not self.response.verify_cert(self.domain2, cert)
def test_simple_verify_bad_key_authorization(self):
key2 = jose.JWKRSA.load(test_util.load_vector('rsa256_key.pem'))
self.response.simple_verify(self.chall, "local", key2.public_key())
@mock.patch('acme.challenges.TLSALPN01Response.verify_cert', autospec=True)
def test_simple_verify(self, mock_verify_cert):
mock_verify_cert.return_value = mock.sentinel.verification
assert mock.sentinel.verification == self.response.simple_verify(
self.chall, self.domain, KEY.public_key(),
cert=mock.sentinel.cert)
mock_verify_cert.assert_called_once_with(
self.response, self.domain, mock.sentinel.cert)
@mock.patch('acme.challenges.socket.gethostbyname')
@mock.patch('acme.challenges.crypto_util.probe_sni')
def test_probe_cert(self, mock_probe_sni, mock_gethostbyname):
mock_gethostbyname.return_value = '127.0.0.1'
self.response.probe_cert('foo.com')
mock_gethostbyname.assert_called_once_with('foo.com')
mock_probe_sni.assert_called_once_with(
host=b'127.0.0.1', port=self.response.PORT, name=b'foo.com',
alpn_protocols=[b'acme-tls/1'])
self.response.probe_cert('foo.com', host='8.8.8.8')
mock_probe_sni.assert_called_with(
host=b'8.8.8.8', port=mock.ANY, name=b'foo.com',
alpn_protocols=[b'acme-tls/1'])
@mock.patch('acme.challenges.TLSALPN01Response.probe_cert')
def test_simple_verify_false_on_probe_error(self, mock_probe_cert):
mock_probe_cert.side_effect = errors.Error
assert not self.response.simple_verify(
self.chall, self.domain, KEY.public_key())
class TLSALPN01Test(unittest.TestCase):
def setUp(self):
from acme.challenges import TLSALPN01
self.msg = TLSALPN01(
token=jose.b64decode('a82d5ff8ef740d12881f6d3c2277ab2e'))
self.jmsg = {
'type': 'tls-alpn-01',
'token': 'a82d5ff8ef740d12881f6d3c2277ab2e',
}
def test_to_partial_json(self):
assert self.jmsg == self.msg.to_partial_json()
def test_from_json(self):
from acme.challenges import TLSALPN01
assert self.msg == TLSALPN01.from_json(self.jmsg)
def test_from_json_hashable(self):
from acme.challenges import TLSALPN01
hash(TLSALPN01.from_json(self.jmsg))
def test_from_json_invalid_token_length(self):
from acme.challenges import TLSALPN01
self.jmsg['token'] = jose.encode_b64jose(b'abcd')
with pytest.raises(jose.DeserializationError):
TLSALPN01.from_json(self.jmsg)
@mock.patch('acme.challenges.TLSALPN01Response.gen_cert')
def test_validation(self, mock_gen_cert):
mock_gen_cert.return_value = ('cert', 'key')
assert ('cert', 'key') == self.msg.validation(
KEY, cert_key=mock.sentinel.cert_key, domain=mock.sentinel.domain)
mock_gen_cert.assert_called_once_with(key=mock.sentinel.cert_key,
domain=mock.sentinel.domain)
class DNSTest(unittest.TestCase):
def setUp(self):
from acme.challenges import DNS
self.msg = DNS(token=jose.b64decode(
b'evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ-PCt92wr-oA'))
self.jmsg = {
'type': 'dns',
'token': 'evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ-PCt92wr-oA',
}
def test_to_partial_json(self):
assert self.jmsg == self.msg.to_partial_json()
def test_from_json(self):
from acme.challenges import DNS
assert self.msg == DNS.from_json(self.jmsg)
def test_from_json_hashable(self):
from acme.challenges import DNS
hash(DNS.from_json(self.jmsg))
def test_gen_check_validation(self):
ec_key_secp384r1 = JWKEC(key=test_util.load_ecdsa_private_key('ec_secp384r1_key.pem'))
for key, alg in [(KEY, jose.RS256), (ec_key_secp384r1, jose.ES384)]:
with self.subTest(key=key, alg=alg):
assert self.msg.check_validation(
self.msg.gen_validation(key, alg=alg), key.public_key())
def test_gen_check_validation_wrong_key(self):
key2 = jose.JWKRSA.load(test_util.load_vector('rsa1024_key.pem'))
assert not self.msg.check_validation(
self.msg.gen_validation(KEY), key2.public_key())
def test_check_validation_wrong_payload(self):
validations = tuple(
jose.JWS.sign(payload=payload, alg=jose.RS256, key=KEY)
for payload in (b'', b'{}')
)
for validation in validations:
assert not self.msg.check_validation(
validation, KEY.public_key())
def test_check_validation_wrong_fields(self):
bad_validation = jose.JWS.sign(
payload=self.msg.update(
token=b'x' * 20).json_dumps().encode('utf-8'),
alg=jose.RS256, key=KEY)
assert not self.msg.check_validation(bad_validation, KEY.public_key())
def test_gen_response(self):
with mock.patch('acme.challenges.DNS.gen_validation') as mock_gen:
mock_gen.return_value = mock.sentinel.validation
response = self.msg.gen_response(KEY)
from acme.challenges import DNSResponse
assert isinstance(response, DNSResponse)
assert response.validation == mock.sentinel.validation
def test_validation_domain_name(self):
assert '_acme-challenge.le.wtf' == self.msg.validation_domain_name('le.wtf')
def test_validation_domain_name_ecdsa(self):
ec_key_secp384r1 = JWKEC(key=test_util.load_ecdsa_private_key('ec_secp384r1_key.pem'))
assert self.msg.check_validation(
self.msg.gen_validation(ec_key_secp384r1, alg=jose.ES384),
ec_key_secp384r1.public_key()) is True
class DNSResponseTest(unittest.TestCase):
def setUp(self):
from acme.challenges import DNS
self.chall = DNS(token=jose.b64decode(
b"evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ-PCt92wr-oA"))
self.validation = jose.JWS.sign(
payload=self.chall.json_dumps(sort_keys=True).encode(),
key=KEY, alg=jose.RS256)
from acme.challenges import DNSResponse
self.msg = DNSResponse(validation=self.validation)
self.jmsg_to = {
'validation': self.validation,
}
self.jmsg_from = {
'resource': 'challenge',
'type': 'dns',
'validation': self.validation.to_json(),
}
def test_to_partial_json(self):
assert self.jmsg_to == self.msg.to_partial_json()
def test_from_json(self):
from acme.challenges import DNSResponse
assert self.msg == DNSResponse.from_json(self.jmsg_from)
def test_from_json_hashable(self):
from acme.challenges import DNSResponse
hash(DNSResponse.from_json(self.jmsg_from))
def test_check_validation(self):
assert self.msg.check_validation(self.chall, KEY.public_key())
class JWSPayloadRFC8555Compliant(unittest.TestCase):
"""Test for RFC8555 compliance of JWS generated from resources/challenges"""
def test_challenge_payload(self):
from acme.challenges import HTTP01Response
challenge_body = HTTP01Response()
jobj = challenge_body.json_dumps(indent=2).encode()
# RFC8555 states that challenge responses must have an empty payload.
assert jobj == b'{}'
if __name__ == '__main__':
sys.exit(pytest.main(sys.argv[1:] + [__file__])) # pragma: no cover
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