def get_subjectaltname(csr, datatype=PEM):
"""
Given a CSR return the subjectaltname value, if any.
The return value is a tuple of strings or None
"""
request = load_certificate_request(csr, datatype)
for extension in request.extensions:
if extension.oid_tag == nss.SEC_OID_X509_SUBJECT_ALT_NAME:
break
else:
return None
del request
return x509.decode_generalnames(extension.value)
def _parse(self, obj, full=True):
"""Extract certificate-specific data into a result object.
``obj``
Result object containing certificate, into which extracted
data will be inserted.
``full``
Whether to include all fields, or only the ones we guess
people want to see most of the time. Also add
recognised otherNames to the generic ``san_other``
attribute when ``True`` in addition to the specialised
attribute.
"""
cert = obj.get('certificate')
if cert is not None:
cert = x509.load_certificate(cert)
obj['subject'] = DN(unicode(cert.subject))
obj['issuer'] = DN(unicode(cert.issuer))
obj['serial_number'] = cert.serial_number
if full:
obj['valid_not_before'] = unicode(cert.valid_not_before_str)
obj['valid_not_after'] = unicode(cert.valid_not_after_str)
obj['md5_fingerprint'] = unicode(
nss.data_to_hex(nss.md5_digest(cert.der_data), 64)[0])
obj['sha1_fingerprint'] = unicode(
nss.data_to_hex(nss.sha1_digest(cert.der_data), 64)[0])
try:
ext_san = cert.get_extension(nss.SEC_OID_X509_SUBJECT_ALT_NAME)
general_names = x509.decode_generalnames(ext_san.value)
except KeyError:
general_names = []
for name_type, desc, name, der_name in general_names:
try:
self._add_san_attribute(
obj, full, name_type, name, der_name)
except Exception as e:
# Invalid GeneralName (i.e. not a valid X.509 cert);
# don't fail but log something about it
root_logger.warning(
"Encountered bad GeneralName; skipping", exc_info=True)
serial_number = obj.get('serial_number')
if serial_number is not None:
obj['serial_number_hex'] = u'0x%X' % serial_number
def _parse(self, obj, full=True):
"""Extract certificate-specific data into a result object.
``obj``
Result object containing certificate, into which extracted
data will be inserted.
``full``
Whether to include all fields, or only the ones we guess
people want to see most of the time. Also add
recognised otherNames to the generic ``san_other``
attribute when ``True`` in addition to the specialised
attribute.
"""
cert = obj.get('certificate')
if cert is not None:
cert = x509.load_certificate(cert)
obj['subject'] = DN(unicode(cert.subject))
obj['issuer'] = DN(unicode(cert.issuer))
obj['serial_number'] = cert.serial_number
if full:
obj['valid_not_before'] = unicode(cert.valid_not_before_str)
obj['valid_not_after'] = unicode(cert.valid_not_after_str)
obj['md5_fingerprint'] = unicode(
nss.data_to_hex(nss.md5_digest(cert.der_data), 64)[0])
obj['sha1_fingerprint'] = unicode(
nss.data_to_hex(nss.sha1_digest(cert.der_data), 64)[0])
try:
ext_san = cert.get_extension(nss.SEC_OID_X509_SUBJECT_ALT_NAME)
general_names = x509.decode_generalnames(ext_san.value)
except KeyError:
general_names = []
for name_type, _desc, name, der_name in general_names:
try:
self._add_san_attribute(obj, full, name_type, name,
der_name)
except Exception:
# Invalid GeneralName (i.e. not a valid X.509 cert);
# don't fail but log something about it
root_logger.warning(
"Encountered bad GeneralName; skipping", exc_info=True)
serial_number = obj.get('serial_number')
if serial_number is not None:
obj['serial_number_hex'] = u'0x%X' % serial_number
