| # |
| # 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 |
| import unittest |
| |
| from pyasn1.codec.der.decoder import decode as der_decoder |
| from pyasn1.codec.der.encoder import encode as der_encoder |
| |
| from pyasn1_modules import pem |
| from pyasn1_modules import rfc5280 |
| from pyasn1_modules import rfc4985 |
| |
| |
| class XMPPCertificateTestCase(unittest.TestCase): |
| xmpp_server_cert_pem_text = """\ |
| MIIC6DCCAm+gAwIBAgIJAKWzVCgbsG5DMAoGCCqGSM49BAMDMD8xCzAJBgNVBAYT |
| AlVTMQswCQYDVQQIDAJWQTEQMA4GA1UEBwwHSGVybmRvbjERMA8GA1UECgwIQm9n |
| dXMgQ0EwHhcNMTkxMDI0MjMxNjA0WhcNMjAxMDIzMjMxNjA0WjBNMQswCQYDVQQG |
| EwJVUzELMAkGA1UECBMCVkExEDAOBgNVBAcTB0hlcm5kb24xHzAdBgNVBAoTFkV4 |
| YW1wbGUgUHJvZHVjdHMsIEluYy4wdjAQBgcqhkjOPQIBBgUrgQQAIgNiAAQZzQlk |
| 03nJRPF6+w1NxFELmQ5vJTjTRz3eu03CRtahK4Wnwd4GwbDe8NVHAEG2qTzBXFDu |
| p6RZugsBdf9GcEZHG42rThYYOzIYzVFnI7tQgA+nTWSWZN6eoU/EXcknhgijggEn |
| MIIBIzAdBgNVHQ4EFgQUkQpUMYcbUesEn5buI03POFnktJgwHwYDVR0jBBgwFoAU |
| 8jXbNATapVXyvWkDmbBi7OIVCMEwCwYDVR0PBAQDAgeAMIGPBgNVHREEgYcwgYSg |
| KQYIKwYBBQUHCAegHRYbX3htcHAtY2xpZW50LmltLmV4YW1wbGUuY29toCkGCCsG |
| AQUFBwgHoB0WG194bXBwLXNlcnZlci5pbS5leGFtcGxlLmNvbaAcBggrBgEFBQcI |
| BaAQDA5pbS5leGFtcGxlLmNvbYIOaW0uZXhhbXBsZS5jb20wQgYJYIZIAYb4QgEN |
| BDUWM1RoaXMgY2VydGlmaWNhdGUgY2Fubm90IGJlIHRydXN0ZWQgZm9yIGFueSBw |
| dXJwb3NlLjAKBggqhkjOPQQDAwNnADBkAjAEo4mhDGC6/R39HyNgzLseNAp36qBH |
| yQJ/AWsBojN0av8akeVv9IuM45yqLKdiCzcCMDCjh1lFnCvurahwp5D1j9pAZMsg |
| nOzhcMpnHs2U/eN0lHl/JNgnbftl6Dvnt59xdA== |
| """ |
| |
| def setUp(self): |
| self.asn1Spec = rfc5280.Certificate() |
| |
| def testDerCodec(self): |
| substrate = pem.readBase64fromText(self.xmpp_server_cert_pem_text) |
| asn1Object, rest = der_decoder(substrate, asn1Spec=self.asn1Spec) |
| |
| self.assertFalse(rest) |
| self.assertTrue(asn1Object.prettyPrint()) |
| self.assertEqual(substrate, der_encoder(asn1Object)) |
| |
| count = 0 |
| |
| for extn in asn1Object['tbsCertificate']['extensions']: |
| if extn['extnID'] == rfc5280.id_ce_subjectAltName: |
| extnValue, rest = der_decoder( |
| extn['extnValue'], asn1Spec=rfc5280.SubjectAltName()) |
| |
| self.assertFalse(rest) |
| self.assertTrue(extnValue.prettyPrint()) |
| self.assertEqual(extn['extnValue'], der_encoder(extnValue)) |
| |
| for gn in extnValue: |
| if gn['otherName'].hasValue(): |
| gn_on = gn['otherName'] |
| if gn_on['type-id'] == rfc4985.id_on_dnsSRV: |
| self.assertIn(gn_on['type-id'], rfc5280.anotherNameMap) |
| |
| spec = rfc5280.anotherNameMap[gn['otherName']['type-id']] |
| on, rest = der_decoder(gn_on['value'], asn1Spec=spec) |
| |
| self.assertFalse(rest) |
| self.assertTrue(on.prettyPrint()) |
| self.assertEqual(gn_on['value'], der_encoder(on)) |
| self.assertIn('im.example.com', on) |
| |
| count += 1 |
| |
| self.assertEqual(2, count) |
| |
| def testOpenTypes(self): |
| substrate = pem.readBase64fromText(self.xmpp_server_cert_pem_text) |
| asn1Object, rest = der_decoder( |
| substrate, asn1Spec=self.asn1Spec, decodeOpenTypes=True) |
| |
| self.assertFalse(rest) |
| self.assertTrue(asn1Object.prettyPrint()) |
| self.assertEqual(substrate, der_encoder(asn1Object)) |
| |
| count = 0 |
| |
| for extn in asn1Object['tbsCertificate']['extensions']: |
| if extn['extnID'] == rfc5280.id_ce_subjectAltName: |
| extnValue, rest = der_decoder( |
| extn['extnValue'], asn1Spec=rfc5280.SubjectAltName(), |
| decodeOpenTypes=True) |
| |
| self.assertFalse(rest) |
| self.assertTrue(extnValue.prettyPrint()) |
| self.assertEqual(extn['extnValue'], der_encoder(extnValue)) |
| |
| for gn in extnValue: |
| if gn['otherName'].hasValue(): |
| if gn['otherName']['type-id'] == rfc4985.id_on_dnsSRV: |
| self.assertIn('im.example.com', gn['otherName']['value']) |
| count += 1 |
| |
| self.assertEqual(2, count) |
| |
| |
| suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__]) |
| |
| if __name__ == '__main__': |
| result = unittest.TextTestRunner(verbosity=2).run(suite) |
| sys.exit(not result.wasSuccessful()) |
