Fix control message decoding.

cista/api.py

@@ -6,7 +6,7 @@ from sanic import Blueprint
 
 from cista import watching
 from cista.fileio import FileServer
-from cista.protocol import ControlBase, FileRange, StatusMsg
+from cista.protocol import ControlTypes, FileRange, StatusMsg
 from cista.util.apphelpers import asend, websocket_wrapper
 
 bp = Blueprint("api", url_prefix="/api")
@@ -76,7 +76,7 @@ async def download(req, ws):
 @bp.websocket("control")
 @websocket_wrapper
 async def control(req, ws):
-    cmd = msgspec.json.decode(await ws.recv(), type=ControlBase)
+    cmd = msgspec.json.decode(await ws.recv(), type=ControlTypes)
     await asyncio.to_thread(cmd)
     await asend(ws, StatusMsg(status="ack", req=cmd))
 

cista/protocol.py

@@ -78,6 +78,9 @@ class Cp(ControlBase):
             )
 
 
+ControlTypes = MkDir | Rename | Rm | Mv | Cp
+
+
 ## File uploads and downloads