Bump a user's presence last_active time every time they send a message to a room

synapse/handlers/message.py

@@ -90,6 +90,10 @@ class MessageHandler(BaseRoomHandler):
 
         yield self._on_new_room_event(event, snapshot)
 
+        self.hs.get_handlers().presence_handler.bump_presence_active_time(
+            user
+        )
+
     @defer.inlineCallbacks
     def get_messages(self, user_id=None, room_id=None, pagin_config=None,
                      feedback=False):

synapse/handlers/presence.py

@@ -266,6 +266,12 @@ class PresenceHandler(BaseHandler):
         #   we don't have to do this all the time
         self.changed_presencelike_data(target_user, state)
 
+    def bump_presence_active_time(self, user, now=None):
+        if now is None:
+            now = self.clock.time_msec()
+
+        self.changed_presencelike_data(user, {"last_active": now})
+
     def changed_presencelike_data(self, user, state):
         statuscache = self._get_or_make_usercache(user)