bpo-25674: remove sha256.tbs-internet.com ssl test (#3297)

Signed-off-by: Christian Heimes <christian@python.org>

Lib/test/sha256.pem

-# Certificate chain for https://sha256.tbs-internet.com
- 0 s:/C=FR/postalCode=14000/ST=Calvados/L=CAEN/street=22 rue de Bretagne/O=TBS INTERNET/OU=0002 440443810/OU=sha-256 production/CN=sha256.tbs-internet.com
-   i:/C=FR/ST=Calvados/L=Caen/O=TBS INTERNET/OU=Terms and Conditions: http://www.tbs-internet.com/CA/repository/OU=TBS INTERNET CA/CN=TBS X509 CA SGC
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
- 1 s:/C=FR/ST=Calvados/L=Caen/O=TBS INTERNET/OU=Terms and Conditions: http://www.tbs-internet.com/CA/repository/OU=TBS INTERNET CA/CN=TBS X509 CA SGC
-   i:/C=SE/O=AddTrust AB/OU=AddTrust External TTP Network/CN=AddTrust External CA Root
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
- 2 s:/C=SE/O=AddTrust AB/OU=AddTrust External TTP Network/CN=AddTrust External CA Root
-   i:/C=US/ST=UT/L=Salt Lake City/O=The USERTRUST Network/OU=http://www.usertrust.com/CN=UTN - DATACorp SGC
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
- 3 s:/C=US/ST=UT/L=Salt Lake City/O=The USERTRUST Network/OU=http://www.usertrust.com/CN=UTN - DATACorp SGC
-   i:/C=US/ST=UT/L=Salt Lake City/O=The USERTRUST Network/OU=http://www.usertrust.com/CN=UTN - DATACorp SGC
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----

Lib/test/test_ssl.py

@@ -1803,34 +1803,6 @@ class NetworkedTests(unittest.TestCase):
             _test_get_server_certificate(self, 'ipv6.google.com', 443)
             _test_get_server_certificate_fail(self, 'ipv6.google.com', 443)
 
-    def test_algorithms(self):
-        # Issue #8484: all algorithms should be available when verifying a
-        # certificate.
-        # SHA256 was added in OpenSSL 0.9.8
-        if ssl.OPENSSL_VERSION_INFO < (0, 9, 8, 0, 15):
-            self.skipTest("SHA256 not available on %r" % ssl.OPENSSL_VERSION)
-        # sha256.tbs-internet.com needs SNI to use the correct certificate
-        if not ssl.HAS_SNI:
-            self.skipTest("SNI needed for this test")
-        # https://sha2.hboeck.de/ was used until 2011-01-08 (no route to host)
-        remote = ("sha256.tbs-internet.com", 443)
-        sha256_cert = os.path.join(os.path.dirname(__file__), "sha256.pem")
-        with support.transient_internet("sha256.tbs-internet.com"):
-            ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
-            ctx.verify_mode = ssl.CERT_REQUIRED
-            ctx.load_verify_locations(sha256_cert)
-            s = ctx.wrap_socket(socket.socket(socket.AF_INET),
-                                server_hostname="sha256.tbs-internet.com")
-            try:
-                s.connect(remote)
-                if support.verbose:
-                    sys.stdout.write("\nCipher with %r is %r\n" %
-                                     (remote, s.cipher()))
-                    sys.stdout.write("Certificate is:\n%s\n" %
-                                     pprint.pformat(s.getpeercert()))
-            finally:
-                s.close()
-
 
 def _test_get_server_certificate(test, host, port, cert=None):
     pem = ssl.get_server_certificate((host, port))

Misc/NEWS.d/next/Tests/2017-09-04-13-03-55.bpo-25674.whVTXh.rst

+Remove sha256.tbs-internet.com ssl test