WebHost: Guard each Room via file-lock

MultiServer.py

@@ -1034,7 +1034,7 @@ async def process_client_cmd(ctx: Context, client: Client, args: dict):
         if ctx.compatibility == 0 and args['version'] != version_tuple:
             errors.add('IncompatibleVersion')
         if errors:
-            logging.info(f"A client connection was refused due to: {errors}")
+            logging.info(f"A client connection was refused due to: {errors}, the sent connect information was {args}.")
             await ctx.send_msgs(client, [{"cmd": "ConnectionRefused", "errors": list(errors)}])
         else:
             ctx.client_ids[client.team, client.slot] = args["uuid"]

WebHostLib/autolauncher.py

@@ -15,10 +15,13 @@ from Utils import restricted_loads
 
 class CommonLocker():
     """Uses a file lock to signal that something is already running"""
-
-    def __init__(self, lockname: str):
+    lock_folder = "file_locks"
+    def __init__(self, lockname: str, folder=None):
+        if folder:
+            self.lock_folder = folder
+        os.makedirs(self.lock_folder, exist_ok=True)
         self.lockname = lockname
-        self.lockfile = f"./{self.lockname}.lck"
+        self.lockfile = os.path.join(self.lock_folder, f"{self.lockname}.lck")
 
 
 class AlreadyRunningException(Exception):

WebHostLib/customserver.py

@@ -104,6 +104,7 @@ class WebHostContext(Context):
 def get_random_port():
     return random.randint(49152, 65535)
 
+
 def run_server_process(room_id, ponyconfig: dict):
     # establish DB connection for multidata and multisave
     db.bind(**ponyconfig)
@@ -144,6 +145,8 @@ def run_server_process(room_id, ponyconfig: dict):
         await ctx.shutdown_task
         logging.info("Shutting down")
 
+    from .autolauncher import Locker
+    with Locker(room_id):
         asyncio.run(main())