support indexing in AIA
diff --git a/src/cryptography/x509/extensions.py b/src/cryptography/x509/extensions.py
index 7979ccb..ac70cc1 100644
--- a/src/cryptography/x509/extensions.py
+++ b/src/cryptography/x509/extensions.py
@@ -270,6 +270,9 @@
def __ne__(self, other):
return not self == other
+ def __getitem__(self, idx):
+ return self._descriptions[idx]
+
class AccessDescription(object):
def __init__(self, access_method, access_location):
diff --git a/tests/test_x509_ext.py b/tests/test_x509_ext.py
index cfca579..92e6e1a 100644
--- a/tests/test_x509_ext.py
+++ b/tests/test_x509_ext.py
@@ -2210,6 +2210,32 @@
assert aia != aia2
assert aia != object()
+ def test_indexing(self):
+ aia = x509.AuthorityInformationAccess([
+ x509.AccessDescription(
+ AuthorityInformationAccessOID.OCSP,
+ x509.UniformResourceIdentifier(u"http://ocsp.domain.com")
+ ),
+ x509.AccessDescription(
+ AuthorityInformationAccessOID.CA_ISSUERS,
+ x509.UniformResourceIdentifier(u"http://domain.com/ca.crt")
+ ),
+ x509.AccessDescription(
+ AuthorityInformationAccessOID.OCSP,
+ x509.UniformResourceIdentifier(u"http://ocsp2.domain.com")
+ ),
+ x509.AccessDescription(
+ AuthorityInformationAccessOID.OCSP,
+ x509.UniformResourceIdentifier(u"http://ocsp3.domain.com")
+ ),
+ x509.AccessDescription(
+ AuthorityInformationAccessOID.OCSP,
+ x509.UniformResourceIdentifier(u"http://ocsp4.domain.com")
+ ),
+ ])
+ assert aia[-1] == aia[4]
+ assert aia[2:6:2] == [aia[2], aia[4]]
+
@pytest.mark.requires_backend_interface(interface=RSABackend)
@pytest.mark.requires_backend_interface(interface=X509Backend)