diff options
| -rw-r--r-- | synapse/federation/federation_client.py | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py index b87c8a3bbb..11e2753fed 100644 --- a/synapse/federation/federation_client.py +++ b/synapse/federation/federation_client.py @@ -446,6 +446,20 @@ class FederationClient(FederationBase): @defer.inlineCallbacks def get_missing_events(self, destination, room_id, earliest_events_ids, latest_events, limit, min_depth): + """Tries to fetch events we are missing. This is called when we receive + an event without having received all of its ancestors. + + Args: + destination (str) + room_id (str) + earliest_events_ids (list): List of event ids. Effectively the + events we expected to receive, but haven't. `get_missing_events` + should only return events that didn't happen before these. + latest_events (list): List of events we have received that we don't + have all previous events for. + limit (int): Maximum number of events to return. + min_depth (int): Minimum depth of events tor return. + """ try: content = yield self.transport_layer.get_missing_events( destination=destination, @@ -470,6 +484,8 @@ class FederationClient(FederationBase): if not e.code == 400: raise + # We are probably hitting an old server that doesn't support + # get_missing_events signed_events = [] have_gotten_all_from_destination = False |