Fix Python 3.12 support

from OpenKMIP#707

Author: petere

kmip/services/kmip_client.py

@@ -285,13 +285,17 @@ def open(self):
             six.reraise(*last_error)
 
     def _create_socket(self, sock):
-        self.socket = ssl.wrap_socket(
+        context = ssl.SSLContext(self.ssl_version)
+        context.verify_mode = self.cert_reqs
+        if self.ca_certs:
+            context.load_verify_locations(self.ca_certs)
+        if self.keyfile and not self.certfile:
+            raise ValueError("certfile must be specified")
+        if self.certfile:
+            context.load_cert_chain(self.certfile, self.keyfile)
+        self.socket = context.wrap_socket(
             sock,
-            keyfile=self.keyfile,
-            certfile=self.certfile,
-            cert_reqs=self.cert_reqs,
-            ssl_version=self.ssl_version,
-            ca_certs=self.ca_certs,
+            server_side=False,
             do_handshake_on_connect=self.do_handshake_on_connect,
             suppress_ragged_eofs=self.suppress_ragged_eofs)
         self.socket.settimeout(self.timeout)

kmip/services/server/server.py

@@ -287,17 +287,26 @@ def interrupt_handler(trigger, frame):
         for cipher in auth_suite_ciphers:
             self._logger.debug(cipher)
 
-        self._socket = ssl.wrap_socket(
+        cafile = self.config.settings.get('ca_path')
+        context = ssl.SSLContext(self.auth_suite.protocol)
+        context.verify_mode = ssl.CERT_REQUIRED
+        if self.auth_suite.ciphers:
+            context.set_ciphers(self.auth_suite.ciphers)
+        if cafile:
+            context.load_verify_locations(cafile)
+        certfile = self.config.settings.get('certificate_path')
+
+        if certfile:
+            keyfile = self.config.settings.get('key_path')
+            context.load_cert_chain(certfile, keyfile=keyfile)
+        else:
+            raise ValueError("certfile must be specified for server-side operations")
+
+        self._socket = context.wrap_socket(
             self._socket,
-            keyfile=self.config.settings.get('key_path'),
-            certfile=self.config.settings.get('certificate_path'),
             server_side=True,
-            cert_reqs=ssl.CERT_REQUIRED,
-            ssl_version=self.auth_suite.protocol,
-            ca_certs=self.config.settings.get('ca_path'),
             do_handshake_on_connect=False,
-            suppress_ragged_eofs=True,
-            ciphers=self.auth_suite.ciphers
+            suppress_ragged_eofs=True
         )
 
         try:

kmip/tests/unit/services/server/test_server.py

@@ -210,9 +210,9 @@ def test_start(self,
         # Test that in ideal cases no errors are generated and the right
         # log messages are.
         with mock.patch('socket.socket') as socket_mock:
-            with mock.patch('ssl.wrap_socket') as ssl_mock:
+            with mock.patch('ssl.SSLContext') as ssl_mock:
                 socket_mock.return_value = a_mock
-                ssl_mock.return_value = b_mock
+                ssl_mock.return_value.wrap_socket.return_value = b_mock
 
                 manager_mock.assert_not_called()
                 monitor_mock.assert_not_called()
@@ -271,7 +271,7 @@ def test_start(self,
 
         # Test that a NetworkingError is generated if the socket bind fails.
         with mock.patch('socket.socket') as socket_mock:
-            with mock.patch('ssl.wrap_socket') as ssl_mock:
+            with mock.patch('ssl.SSLContext.wrap_socket') as ssl_mock:
                 socket_mock.return_value = a_mock
                 ssl_mock.return_value = b_mock