def _decode_hook(self):
if self.asn1 is None:
self._distribution_points = None
return
self._distribution_points = []
for asn1_point in self.asn1:
point_name_rdn_malformed = False
if asn1_point["distributionPoint"].hasValue():
point_name_asn1 = asn1_point["distributionPoint"].getComponent(
)
if asn1_point["distributionPoint"]["fullName"].hasValue():
# GeneralNames
point_name = ASN1GeneralNamesWrapper.from_asn1(
point_name_asn1)
else:
# RelativeDistinguishedName
try:
point_name = RelativeDistinguishedName.from_asn1(
point_name_asn1)
except InvalidInputException:
point_name = None
point_name_rdn_malformed = True
else:
point_name = None
if asn1_point["reasons"].hasValue():
reasons = set()
for (bitno, value) in enumerate(asn1_point["reasons"]):
if value == 1:
value = self._KNOWN_REASON_BITS.get(bitno, bitno)
reasons.add(value)
reasons_trailing_zero = ASN1Tools.bitstring_has_trailing_zeros(
asn1_point["reasons"])
else:
reasons = None
reasons_trailing_zero = False
if asn1_point["cRLIssuer"].hasValue():
crl_issuer = ASN1GeneralNamesWrapper.from_asn1(
asn1_point["cRLIssuer"])
else:
crl_issuer = None
cdp = self._DistributionPoint(
point_name=point_name,
point_name_rdn_malformed=point_name_rdn_malformed,
reasons=reasons,
reasons_trailing_zero=reasons_trailing_zero,
crl_issuer=crl_issuer)
self._distribution_points.append(cdp)
def test_bitstring_trailing_zero(self):
self.assertTrue(
ASN1Tools.bitstring_has_trailing_zeros(BitString([0, 1, 0])))
self.assertTrue(ASN1Tools.bitstring_has_trailing_zeros(BitString([0])))
self.assertTrue(
ASN1Tools.bitstring_has_trailing_zeros(
BitString([1, 1, 1, 1, 1, 1, 1, 0])))
self.assertTrue(
ASN1Tools.bitstring_has_trailing_zeros(
BitString([1, 1, 1, 1, 1, 1, 1, 1, 0])))
self.assertFalse(
ASN1Tools.bitstring_has_trailing_zeros(BitString([0, 1])))
self.assertFalse(ASN1Tools.bitstring_has_trailing_zeros(BitString([])))
self.assertFalse(
ASN1Tools.bitstring_has_trailing_zeros(BitString([0, 0, 0, 0, 1])))
self.assertFalse(
ASN1Tools.bitstring_has_trailing_zeros(
BitString([0, 0, 0, 0, 0, 0, 1])))
self.assertFalse(
ASN1Tools.bitstring_has_trailing_zeros(
BitString([0, 0, 0, 0, 0, 0, 0, 1])))
def has_trailing_zero(self):
return ASN1Tools.bitstring_has_trailing_zeros(
self.asn1) if (self.asn1 is not None) else None