cleanup stale consider_arrangement certificate filepaths

nucypher/network/middleware.py

@@ -7,11 +7,11 @@ from umbral.fragments import CapsuleFrag
 
 class RestMiddleware:
 
-    def consider_arrangement(self, arrangement, certificate_filepath):
+    def consider_arrangement(self, arrangement):
         node = arrangement.ursula
         response = requests.post("https://{}/consider_arrangement".format(node.rest_interface),
                                  bytes(arrangement),
-                                 verify=certificate_filepath)
+                                 verify=node.certificate_filepath)
 
         if not response.status_code == 200:
             raise RuntimeError("Bad response: {}".format(response.content))

nucypher/policy/models.py

@@ -241,14 +241,14 @@ class Policy:
         try:
             ursula.verify_node(network_middleware, accept_federated_only=arrangement.federated)
         except ursula.InvalidNode:
-            # TODO: What do we actually do here?  Report this at least (355)?  Maybe also have another bucket for invalid nodes?
-            # It's possible that nothing sordid is happening here; this node may be updating its interface info or rotating a signing key
-            #  and we learned about a previous one.
+            # TODO: What do we actually do here?  Report this at least (355)?
+            # Maybe also have another bucket for invalid nodes?
+            # It's possible that nothing sordid is happening here;
+            # this node may be updating its interface info or rotating a signing key
+            # and we learned about a previous one.
             raise
 
-        certificate_filepath = os.path.join(self.alice.known_metadata_dir, ursula.certificate_filename)
-        negotiation_response = network_middleware.consider_arrangement(arrangement=arrangement,
-                                                                       certificate_filepath=certificate_filepath)
+        negotiation_response = network_middleware.consider_arrangement(arrangement=arrangement)
 
         # TODO: check out the response: need to assess the result and see if we're actually good to go.
         negotiation_result = negotiation_response.status_code == 200

nucypher/utilities/sandbox/middleware.py

@@ -31,8 +31,7 @@ class MockRestMiddleware(RestMiddleware):
                 "Can't find an Ursula with port {} - did you spin up the right test ursulas?".format(port))
         return mock_client
 
-    def consider_arrangement(self, arrangement, certificate_filepath):
-        # assert os.path.isfile(certificate_filepath)
+    def consider_arrangement(self, arrangement):
         mock_client = self._get_mock_client_by_ursula(arrangement.ursula)
         response = mock_client.post("http://localhost/consider_arrangement", bytes(arrangement))
         assert response.status_code == 200