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-rw-r--r--synapse/handlers/presence.py19
1 files changed, 19 insertions, 0 deletions
diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py
index a5c363e390..f6cf343174 100644
--- a/synapse/handlers/presence.py
+++ b/synapse/handlers/presence.py
@@ -778,6 +778,25 @@ class PresenceHandler(BaseHandler):
 
         defer.returnValue(observer_user.to_string() in accepted_observers)
 
+    @defer.inlineCallbacks
+    def get_all_presence_updates(self, last_id, current_id):
+        """
+        Gets a list of presence update rows from between the given stream ids.
+        Each row has:
+        - stream_id(str)
+        - user_id(str)
+        - state(str)
+        - last_active_ts(int)
+        - last_federation_update_ts(int)
+        - last_user_sync_ts(int)
+        - status_msg(int)
+        - currently_active(int)
+        """
+        # TODO(markjh): replicate the unpersisted changes.
+        # This could use the in-memory stores for recent changes.
+        rows = yield self.store.get_all_presence_updates(last_id, current_id)
+        defer.returnValue(rows)
+
 
 def should_notify(old_state, new_state):
     """Decides if a presence state change should be sent to interested parties.