diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py
index d46bc308b4..11afd34ae2 100644
--- a/synapse/handlers/room.py
+++ b/synapse/handlers/room.py
@@ -497,3 +497,49 @@ class RoomListHandler(BaseRoomHandler):
chunk = yield self.store.get_rooms(is_public=True)
# FIXME (erikj): START is no longer a valid value
defer.returnValue({"start": "START", "end": "END", "chunk": chunk})
+
+
+class RoomEventSource(object):
+ def __init__(self, hs):
+ self.store = hs.get_datastore()
+
+ @defer.inlineCallbacks
+ def get_new_events_for_user(self, user, from_key, limit):
+ # We just ignore the key for now.
+
+ to_key = yield self.get_current_key()
+
+ events, end_key = yield self.store.get_room_events_stream(
+ user_id=user.to_string(),
+ from_key=from_key,
+ to_key=to_key,
+ room_id=None,
+ limit=limit,
+ )
+
+ defer.returnValue((events, end_key))
+
+ def get_current_key(self):
+ return self.store.get_room_events_max_id()
+
+ @defer.inlineCallbacks
+ def get_pagination_rows(self, user, pagination_config, key):
+ from_token = pagination_config.from_token
+ to_token = pagination_config.to_token
+ limit = pagination_config.limit
+ direction = pagination_config.direction
+
+ to_key = to_token.room_key if to_token else None
+
+ events, next_key = yield self.store.paginate_room_events(
+ room_id=key,
+ from_key=from_token.room_key,
+ to_key=to_key,
+ direction=direction,
+ limit=limit,
+ with_feedback=True
+ )
+
+ next_token = from_token.copy_and_replace("room_key", next_key)
+
+ defer.returnValue((events, next_token))
|
