Allow GET /devices/:device_id to run on worker

synapse/rest/__init__.py

@@ -172,7 +172,6 @@ class ClientRestResource(JsonResource):
 
             for servletfunc in SERVLET_GROUPS[servlet_group]:
                 if not is_main_process and servletfunc in [
-                    pusher.register_servlets,
                     logout.register_servlets,
                     auth.register_servlets,
                     tokenrefresh.register_servlets,

synapse/rest/client/devices.py

@@ -144,13 +144,13 @@ class DeviceRestServlet(RestServlet):
         super().__init__()
         self.hs = hs
         self.auth = hs.get_auth()
-        handler = hs.get_device_handler()
-        assert isinstance(handler, DeviceHandler)
-        self.device_handler = handler
+        self.device_handler = hs.get_device_handler()
         self.auth_handler = hs.get_auth_handler()
         self._msc3852_enabled = hs.config.experimental.msc3852_enabled
         self._msc3861_oauth_delegation_enabled = hs.config.experimental.msc3861.enabled
 
+        self._is_main_process = hs.config.worker.worker_app is None
+
     async def on_GET(
         self, request: SynapseRequest, device_id: str
     ) -> Tuple[int, JsonDict]:
@@ -181,6 +181,11 @@ class DeviceRestServlet(RestServlet):
     async def on_DELETE(
         self, request: SynapseRequest, device_id: str
     ) -> Tuple[int, JsonDict]:
+        if not self._is_main_process:
+            raise UnrecognizedRequestError(code=404)
+
+        assert isinstance(self.device_handler, DeviceHandler)
+
         if self._msc3861_oauth_delegation_enabled:
             raise UnrecognizedRequestError(code=404)
 
@@ -219,6 +224,11 @@ class DeviceRestServlet(RestServlet):
     async def on_PUT(
         self, request: SynapseRequest, device_id: str
     ) -> Tuple[int, JsonDict]:
+        if not self._is_main_process:
+            raise UnrecognizedRequestError(code=404)
+
+        assert isinstance(self.device_handler, DeviceHandler)
+
         requester = await self.auth.get_user_by_req(request, allow_guest=True)
 
         body = parse_and_validate_json_object_from_request(request, self.PutBody)
@@ -570,10 +580,11 @@ def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
         and not hs.config.experimental.msc3861.enabled
     ):
         DeleteDevicesRestServlet(hs).register(http_server)
+
     DevicesRestServlet(hs).register(http_server)
+    DeviceRestServlet(hs).register(http_server)
 
     if hs.config.worker.worker_app is None:
-        DeviceRestServlet(hs).register(http_server)
         if hs.config.experimental.msc2697_enabled:
             DehydratedDeviceServlet(hs).register(http_server)
             ClaimDehydratedDeviceServlet(hs).register(http_server)

synapse/rest/client/pusher.py

@@ -177,5 +177,7 @@ class LegacyPushersRemoveRestServlet(UnsubscribeResource, RestServlet):
 
 def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
     PushersRestServlet(hs).register(http_server)
-    PushersSetRestServlet(hs).register(http_server)
-    LegacyPushersRemoveRestServlet(hs).register(http_server)
+
+    if hs.config.worker.worker_app is None:
+        PushersSetRestServlet(hs).register(http_server)
+        LegacyPushersRemoveRestServlet(hs).register(http_server)