diff --git a/synapse/rest/client/devices.py b/synapse/rest/client/devices.py
index 6fab102437..ed6ce78d47 100644
--- a/synapse/rest/client/devices.py
+++ b/synapse/rest/client/devices.py
@@ -42,12 +42,26 @@ class DevicesRestServlet(RestServlet):
self.hs = hs
self.auth = hs.get_auth()
self.device_handler = hs.get_device_handler()
+ self._msc3852_enabled = hs.config.experimental.msc3852_enabled
async def on_GET(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
requester = await self.auth.get_user_by_req(request, allow_guest=True)
devices = await self.device_handler.get_devices_by_user(
requester.user.to_string()
)
+
+ # If MSC3852 is disabled, then the "last_seen_user_agent" field will be
+ # removed from each device. If it is enabled, then the field name will
+ # be replaced by the unstable identifier.
+ #
+ # When MSC3852 is accepted, this block of code can just be removed to
+ # expose "last_seen_user_agent" to clients.
+ for device in devices:
+ last_seen_user_agent = device["last_seen_user_agent"]
+ del device["last_seen_user_agent"]
+ if self._msc3852_enabled:
+ device["org.matrix.msc3852.last_seen_user_agent"] = last_seen_user_agent
+
return 200, {"devices": devices}
@@ -108,6 +122,7 @@ class DeviceRestServlet(RestServlet):
self.auth = hs.get_auth()
self.device_handler = hs.get_device_handler()
self.auth_handler = hs.get_auth_handler()
+ self._msc3852_enabled = hs.config.experimental.msc3852_enabled
async def on_GET(
self, request: SynapseRequest, device_id: str
@@ -118,6 +133,18 @@ class DeviceRestServlet(RestServlet):
)
if device is None:
raise NotFoundError("No device found")
+
+ # If MSC3852 is disabled, then the "last_seen_user_agent" field will be
+ # removed from each device. If it is enabled, then the field name will
+ # be replaced by the unstable identifier.
+ #
+ # When MSC3852 is accepted, this block of code can just be removed to
+ # expose "last_seen_user_agent" to clients.
+ last_seen_user_agent = device["last_seen_user_agent"]
+ del device["last_seen_user_agent"]
+ if self._msc3852_enabled:
+ device["org.matrix.msc3852.last_seen_user_agent"] = last_seen_user_agent
+
return 200, device
@interactive_auth_handler
|