diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py
index 4a8e65c292..289017b2ed 100644
--- a/synapse/federation/federation_client.py
+++ b/synapse/federation/federation_client.py
@@ -879,17 +879,50 @@ class FederationClient(FederationBase):
@defer.inlineCallbacks
def send_request(destination):
time_now = self._clock.time_msec()
- _, content = yield self.transport_layer.send_leave(
+ content = yield self._do_send_leave(destination, pdu)
+
+ logger.debug("Got content: %s", content)
+ return None
+
+ return self._try_destination_list("send_leave", destinations, send_request)
+
+ @defer.inlineCallbacks
+ def _do_send_leave(self, destination, pdu):
+ time_now = self._clock.time_msec()
+
+ try:
+ content = yield self.transport_layer.send_leave_v2(
destination=destination,
room_id=pdu.room_id,
event_id=pdu.event_id,
content=pdu.get_pdu_json(time_now),
)
- logger.debug("Got content: %s", content)
- return None
+ return content
+ except HttpResponseException as e:
+ if e.code in [400, 404]:
+ err = e.to_synapse_error()
- return self._try_destination_list("send_leave", destinations, send_request)
+ # If we receive an error response that isn't a generic error, or an
+ # unrecognised endpoint error, we assume that the remote understands
+ # the v2 invite API and this is a legitimate error.
+ if not err.errcode in [Codes.UNKNOWN, Codes.UNRECOGNIZED]:
+ raise err
+ else:
+ raise e.to_synapse_error()
+
+ logger.debug("Couldn't send_leave with the v2 API, falling back to the v1 API")
+
+ resp = yield self.transport_layer.send_leave_v1(
+ destination=destination,
+ room_id=pdu.room_id,
+ event_id=pdu.event_id,
+ content=pdu.get_pdu_json(time_now),
+ )
+
+ # We expect the v1 API to respond with [200, content], so we only return the
+ # content.
+ return resp[1]
def get_public_rooms(
self,
|
