diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index d616cbf101..c572fc52ff 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -2188,103 +2188,10 @@ class FederationHandler(BaseHandler):
auth_events.update(new_state)
- different_auth = event_auth_events.difference(
- e.event_id for e in auth_events.values()
- )
-
yield self._update_context_for_auth_events(
event, context, auth_events, event_key
)
- if not different_auth:
- # we're done
- return
-
- logger.info(
- "auth_events still refers to events which are not in the calculated auth "
- "chain after state resolution: %s",
- different_auth,
- )
-
- # Only do auth resolution if we have something new to say.
- # We can't prove an auth failure.
- do_resolution = False
-
- for e_id in different_auth:
- if e_id in have_events:
- if have_events[e_id] == RejectedReason.NOT_ANCESTOR:
- do_resolution = True
- break
-
- if not do_resolution:
- logger.info(
- "Skipping auth resolution due to lack of provable rejection reasons"
- )
- return
-
- logger.info("Doing auth resolution")
-
- prev_state_ids = yield context.get_prev_state_ids(self.store)
-
- # 1. Get what we think is the auth chain.
- auth_ids = yield self.auth.compute_auth_events(event, prev_state_ids)
- local_auth_chain = yield self.store.get_auth_chain(auth_ids, include_given=True)
-
- try:
- # 2. Get remote difference.
- try:
- result = yield self.federation_client.query_auth(
- origin, event.room_id, event.event_id, local_auth_chain
- )
- except RequestSendFailed as e:
- # The other side isn't around or doesn't implement the
- # endpoint, so lets just bail out.
- logger.info("Failed to query auth from remote: %s", e)
- return
-
- seen_remotes = yield self.store.have_seen_events(
- [e.event_id for e in result["auth_chain"]]
- )
-
- # 3. Process any remote auth chain events we haven't seen.
- for ev in result["auth_chain"]:
- if ev.event_id in seen_remotes:
- continue
-
- if ev.event_id == event.event_id:
- continue
-
- try:
- auth_ids = ev.auth_event_ids()
- auth = {
- (e.type, e.state_key): e
- for e in result["auth_chain"]
- if e.event_id in auth_ids or event.type == EventTypes.Create
- }
- ev.internal_metadata.outlier = True
-
- logger.debug(
- "do_auth %s different_auth: %s", event.event_id, e.event_id
- )
-
- yield self._handle_new_event(origin, ev, auth_events=auth)
-
- if ev.event_id in event_auth_events:
- auth_events[(ev.type, ev.state_key)] = ev
- except AuthError:
- pass
-
- except Exception:
- # FIXME:
- logger.exception("Failed to query auth chain")
-
- # 4. Look at rejects and their proofs.
- # TODO.
-
- yield self._update_context_for_auth_events(
- event, context, auth_events, event_key
- )
-
@defer.inlineCallbacks
def _update_context_for_auth_events(self, event, context, auth_events, event_key):
"""Update the state_ids in an event context after auth event resolution,
@@ -2451,15 +2358,6 @@ class FederationHandler(BaseHandler):
reason_map[e.event_id] = reason
- if reason == RejectedReason.AUTH_ERROR:
- pass
- elif reason == RejectedReason.REPLACED:
- # TODO: Get proof
- pass
- elif reason == RejectedReason.NOT_ANCESTOR:
- # TODO: Get proof.
- pass
-
logger.debug("construct_auth_difference returning")
return {
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