feat(server): force utf-8 encoding (#163)

objects were being split on non-english characters causing receive fails

will also get fixed server side, but this will act as a double check
and an immediate fix for people dealing with this now

specklepy/transports/server/server.py

@@ -1,12 +1,12 @@
 import json
 import time
-
 import requests
+from warnings import warn
 
 from typing import Any, Dict, List, Type
 
 from specklepy.api.client import SpeckleClient
-from specklepy.logging.exceptions import SpeckleException
+from specklepy.logging.exceptions import SpeckleException, SpeckleWarning
 from specklepy.transports.abstract_transport import AbstractTransport
 
 from .batch_sender import BatchSender
@@ -65,12 +65,15 @@ class ServerTransport(AbstractTransport):
             )
 
         if client:
-            if not client.me:
-                raise SpeckleException(
-                    "The provided SpeckleClient was not authenticated."
-                )
-            token = client.me["token"]
             url = client.url
+            if not client.me:
+                warn(
+                    SpeckleWarning(
+                        f"Unauthenticated Speckle Client provided to Server Transport for {self.url}. Receiving from private streams will fail."
+                    )
+                )
+            else:
+                token = client.me["token"]
 
         self.stream_id = stream_id
         self.url = url
@@ -120,8 +123,7 @@ class ServerTransport(AbstractTransport):
     ) -> str:
         endpoint = f"{self.url}/objects/{self.stream_id}/{id}/single"
         r = self.session.get(endpoint)
-        if r.encoding is None:
-            r.encoding = "utf-8"
+        r.encoding = "utf-8"
 
         if r.status_code != 200:
             raise SpeckleException(
@@ -143,8 +145,7 @@ class ServerTransport(AbstractTransport):
         r = self.session.post(
             endpoint, data={"objects": json.dumps(new_children_ids)}, stream=True
         )
-        if r.encoding is None:
-            r.encoding = "utf-8"
+        r.encoding = "utf-8"
         lines = r.iter_lines(decode_unicode=True)
 
         # iter through returned objects saving them as we go