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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
import datetime
import pytest
import pytz
from cryptography import x509
from cryptography.hazmat.backends.interfaces import X509Backend
class TestRevokedCertificateBuilder(object):
def test_serial_number_must_be_integer(self):
with pytest.raises(TypeError):
x509.RevokedCertificateBuilder().serial_number("notanx509name")
def test_serial_number_must_be_non_negative(self):
with pytest.raises(ValueError):
x509.RevokedCertificateBuilder().serial_number(-1)
def test_serial_number_must_be_positive(self):
with pytest.raises(ValueError):
x509.RevokedCertificateBuilder().serial_number(0)
@pytest.mark.requires_backend_interface(interface=X509Backend)
def test_minimal_serial_number(self, backend):
revocation_date = datetime.datetime(2002, 1, 1, 12, 1)
builder = x509.RevokedCertificateBuilder().serial_number(
1
).revocation_date(
revocation_date
)
revoked_certificate = builder.build(backend)
assert revoked_certificate.serial_number == 1
@pytest.mark.requires_backend_interface(interface=X509Backend)
def test_biggest_serial_number(self, backend):
revocation_date = datetime.datetime(2002, 1, 1, 12, 1)
builder = x509.RevokedCertificateBuilder().serial_number(
(1 << 159) - 1
).revocation_date(
revocation_date
)
revoked_certificate = builder.build(backend)
assert revoked_certificate.serial_number == (1 << 159) - 1
def test_serial_number_must_be_less_than_160_bits_long(self):
with pytest.raises(ValueError):
x509.RevokedCertificateBuilder().serial_number(1 << 159)
def test_set_serial_number_twice(self):
builder = x509.RevokedCertificateBuilder().serial_number(3)
with pytest.raises(ValueError):
builder.serial_number(4)
@pytest.mark.requires_backend_interface(interface=X509Backend)
def test_aware_revocation_date(self, backend):
time = datetime.datetime(2012, 1, 16, 22, 43)
tz = pytz.timezone("US/Pacific")
time = tz.localize(time)
utc_time = datetime.datetime(2012, 1, 17, 6, 43)
serial_number = 333
builder = x509.RevokedCertificateBuilder().serial_number(
serial_number
).revocation_date(
time
)
revoked_certificate = builder.build(backend)
assert revoked_certificate.revocation_date == utc_time
def test_revocation_date_invalid(self):
with pytest.raises(TypeError):
x509.RevokedCertificateBuilder().revocation_date("notadatetime")
def test_revocation_date_before_unix_epoch(self):
with pytest.raises(ValueError):
x509.RevokedCertificateBuilder().revocation_date(
datetime.datetime(1960, 8, 10)
)
def test_set_revocation_date_twice(self):
builder = x509.RevokedCertificateBuilder().revocation_date(
datetime.datetime(2002, 1, 1, 12, 1)
)
with pytest.raises(ValueError):
builder.revocation_date(datetime.datetime(2002, 1, 1, 12, 1))
def test_add_extension_checks_for_duplicates(self):
builder = x509.RevokedCertificateBuilder().add_extension(
x509.CRLReason(x509.ReasonFlags.ca_compromise), False
)
with pytest.raises(ValueError):
builder.add_extension(
x509.CRLReason(x509.ReasonFlags.ca_compromise), False
)
def test_add_invalid_extension(self):
with pytest.raises(TypeError):
x509.RevokedCertificateBuilder().add_extension(
"notanextension", False
)
@pytest.mark.requires_backend_interface(interface=X509Backend)
def test_no_serial_number(self, backend):
builder = x509.RevokedCertificateBuilder().revocation_date(
datetime.datetime(2002, 1, 1, 12, 1)
)
with pytest.raises(ValueError):
builder.build(backend)
@pytest.mark.requires_backend_interface(interface=X509Backend)
def test_no_revocation_date(self, backend):
builder = x509.RevokedCertificateBuilder().serial_number(3)
with pytest.raises(ValueError):
builder.build(backend)
@pytest.mark.requires_backend_interface(interface=X509Backend)
def test_create_revoked(self, backend):
serial_number = 333
revocation_date = datetime.datetime(2002, 1, 1, 12, 1)
builder = x509.RevokedCertificateBuilder().serial_number(
serial_number
).revocation_date(
revocation_date
)
revoked_certificate = builder.build(backend)
assert revoked_certificate.serial_number == serial_number
assert revoked_certificate.revocation_date == revocation_date
assert len(revoked_certificate.extensions) == 0
@pytest.mark.parametrize(
"extension",
[
x509.InvalidityDate(datetime.datetime(2015, 1, 1, 0, 0)),
x509.CRLReason(x509.ReasonFlags.ca_compromise),
x509.CertificateIssuer([
x509.DNSName(u"cryptography.io"),
])
]
)
@pytest.mark.requires_backend_interface(interface=X509Backend)
def test_add_extensions(self, backend, extension):
serial_number = 333
revocation_date = datetime.datetime(2002, 1, 1, 12, 1)
builder = x509.RevokedCertificateBuilder().serial_number(
serial_number
).revocation_date(
revocation_date
).add_extension(
extension, False
)
revoked_certificate = builder.build(backend)
assert revoked_certificate.serial_number == serial_number
assert revoked_certificate.revocation_date == revocation_date
assert len(revoked_certificate.extensions) == 1
ext = revoked_certificate.extensions.get_extension_for_class(
type(extension)
)
assert ext.critical is False
assert ext.value == extension
@pytest.mark.requires_backend_interface(interface=X509Backend)
def test_add_multiple_extensions(self, backend):
serial_number = 333
revocation_date = datetime.datetime(2002, 1, 1, 12, 1)
invalidity_date = x509.InvalidityDate(
datetime.datetime(2015, 1, 1, 0, 0)
)
certificate_issuer = x509.CertificateIssuer([
x509.DNSName(u"cryptography.io"),
])
crl_reason = x509.CRLReason(x509.ReasonFlags.aa_compromise)
builder = x509.RevokedCertificateBuilder().serial_number(
serial_number
).revocation_date(
revocation_date
).add_extension(
invalidity_date, True
).add_extension(
crl_reason, True
).add_extension(
certificate_issuer, True
)
revoked_certificate = builder.build(backend)
assert len(revoked_certificate.extensions) == 3
for ext_data in [invalidity_date, certificate_issuer, crl_reason]:
ext = revoked_certificate.extensions.get_extension_for_class(
type(ext_data)
)
assert ext.critical is True
assert ext.value == ext_data
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