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#
# This file is part of pyasn1-modules software.
#
# Created by Russ Housley
# Copyright (c) 2019, Vigil Security, LLC
# License: http://snmplabs.com/pyasn1/license.html
#
import sys
from pyasn1.codec.der.decoder import decode as der_decode
from pyasn1.codec.der.encoder import encode as der_encode
from pyasn1_modules import pem
from pyasn1_modules import rfc5280
from pyasn1_modules import rfc4985
try:
import unittest2 as unittest
except ImportError:
import unittest
class XMPPCertificateTestCase(unittest.TestCase):
xmpp_server_cert_pem_text = """\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"""
def setUp(self):
self.asn1Spec = rfc5280.Certificate()
def testDerCodec(self):
substrate = pem.readBase64fromText(self.xmpp_server_cert_pem_text)
asn1Object, rest = der_decode(substrate, asn1Spec=self.asn1Spec)
assert not rest
assert asn1Object.prettyPrint()
assert der_encode(asn1Object) == substrate
count = 0
for extn in asn1Object['tbsCertificate']['extensions']:
if extn['extnID'] == rfc5280.id_ce_subjectAltName:
extnValue, rest = der_decode(extn['extnValue'],
asn1Spec=rfc5280.SubjectAltName())
assert not rest
assert extnValue.prettyPrint()
assert der_encode(extnValue) == extn['extnValue']
for gn in extnValue:
if gn['otherName'].hasValue():
gn_on = gn['otherName']
if gn_on['type-id'] == rfc4985.id_on_dnsSRV:
assert gn_on['type-id'] in rfc5280.anotherNameMap.keys()
spec = rfc5280.anotherNameMap[gn['otherName']['type-id']]
on, rest = der_decode(gn_on['value'], asn1Spec=spec)
assert not rest
assert on.prettyPrint()
assert der_encode(on) == gn_on['value']
assert 'im.example.com' in on
count += 1
assert count == 2
def testOpenTypes(self):
substrate = pem.readBase64fromText(self.xmpp_server_cert_pem_text)
asn1Object, rest = der_decode(substrate,
asn1Spec=self.asn1Spec,
decodeOpenTypes=True)
assert not rest
assert asn1Object.prettyPrint()
assert der_encode(asn1Object) == substrate
count = 0
for extn in asn1Object['tbsCertificate']['extensions']:
if extn['extnID'] == rfc5280.id_ce_subjectAltName:
extnValue, rest = der_decode(extn['extnValue'],
asn1Spec=rfc5280.SubjectAltName(), decodeOpenTypes=True)
assert not rest
assert extnValue.prettyPrint()
assert der_encode(extnValue) == extn['extnValue']
for gn in extnValue:
if gn['otherName'].hasValue():
if gn['otherName']['type-id'] == rfc4985.id_on_dnsSRV:
assert 'im.example.com' in gn['otherName']['value']
count += 1
assert count == 2
suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
if __name__ == '__main__':
import sys
result = unittest.TextTestRunner(verbosity=2).run(suite)
sys.exit(not result.wasSuccessful())
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