Make clients identify themselves against server

prep for potential later async auth system. Wanted to get this into the 2.3 client update.

MultiClient.py

@@ -9,7 +9,7 @@ import functools
 import webbrowser
 import multiprocessing
 import socket
-import uuid
+
 from random import randrange
 
 from Utils import get_item_name_from_id, get_location_name_from_address, ReceivedItem
@@ -888,7 +888,7 @@ async def server_auth(ctx: Context, password_requested):
     ctx.auth = ctx.rom.copy()
     await ctx.send_msgs([['Connect', {
         'password': ctx.password, 'rom': ctx.auth, 'version': Utils._version_tuple, 'tags': get_tags(ctx),
-        'uuid': uuid.getnode()
+        'uuid': Utils.get_unique_identifier()
     }]])
 
 

Utils.py

@@ -226,6 +226,9 @@ def persistent_store(category, key, value):
 
 
 def persistent_load() -> typing.Dict[dict]:
+    storage = getattr(persistent_load, "storage", None)
+    if storage:
+        return storage
     path = local_path("_persistent_storage.yaml")
     storage: dict = {}
     if os.path.exists(path):
@@ -237,6 +240,7 @@ def persistent_load() -> typing.Dict[dict]:
             logging.debug(f"Could not read store: {e}")
     if storage is None:
         storage = {}
+    persistent_load.storage = storage
     return storage
 
 
@@ -244,3 +248,14 @@ class ReceivedItem(typing.NamedTuple):
     item: int
     location: int
     player: int
+
+
+def get_unique_identifier():
+    uuid = persistent_load().get("client", {}).get("uuid", None)
+    if uuid:
+        return uuid
+
+    import uuid
+    uuid = uuid.getnode()
+    persistent_store("client", "uuid", uuid)
+    return uuid