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https://git.anonymousland.org/anonymousland/synapse-product.git
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Get rid of _auth_and_persist_event
(#10781)
This is only called in two places, and the code seems much clearer without it.
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changelog.d/10781.misc
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1
changelog.d/10781.misc
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@ -0,0 +1 @@
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Clean up some of the federation event authentication code for clarity.
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@ -909,12 +909,18 @@ class FederationEventHandler:
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context = await self._state_handler.compute_event_context(
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event, old_state=state
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)
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await self._auth_and_persist_event(
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origin, event, context, state=state, backfilled=backfilled
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context = await self._check_event_auth(
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origin,
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event,
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context,
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state=state,
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backfilled=backfilled,
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)
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except AuthError as e:
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raise FederationError("ERROR", e.code, e.msg, affected=event.event_id)
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await self._run_push_actions_and_persist_event(event, context, backfilled)
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if backfilled:
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return
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@ -1239,51 +1245,6 @@ class FederationEventHandler:
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],
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)
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async def _auth_and_persist_event(
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self,
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origin: str,
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event: EventBase,
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context: EventContext,
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state: Optional[Iterable[EventBase]] = None,
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claimed_auth_event_map: Optional[StateMap[EventBase]] = None,
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backfilled: bool = False,
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) -> None:
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"""
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Process an event by performing auth checks and then persisting to the database.
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Args:
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origin: The host the event originates from.
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event: The event itself.
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context:
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The event context.
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state:
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The state events used to check the event for soft-fail. If this is
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not provided the current state events will be used.
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claimed_auth_event_map:
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A map of (type, state_key) => event for the event's claimed auth_events.
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Possibly incomplete, and possibly including events that are not yet
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persisted, or authed, or in the right room.
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Only populated when populating outliers.
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backfilled: True if the event was backfilled.
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"""
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# claimed_auth_event_map should be given iff the event is an outlier
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assert bool(claimed_auth_event_map) == event.internal_metadata.outlier
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context = await self._check_event_auth(
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origin,
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event,
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context,
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state=state,
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claimed_auth_event_map=claimed_auth_event_map,
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backfilled=backfilled,
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)
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await self._run_push_actions_and_persist_event(event, context, backfilled)
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async def _check_event_auth(
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self,
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origin: str,
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@ -1558,39 +1519,45 @@ class FederationEventHandler:
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event.room_id, [e.event_id for e in remote_auth_chain]
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)
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for e in remote_auth_chain:
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if e.event_id in seen_remotes:
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for auth_event in remote_auth_chain:
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if auth_event.event_id in seen_remotes:
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continue
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if e.event_id == event.event_id:
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if auth_event.event_id == event.event_id:
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continue
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try:
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auth_ids = e.auth_event_ids()
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auth_ids = auth_event.auth_event_ids()
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auth = {
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(e.type, e.state_key): e
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for e in remote_auth_chain
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if e.event_id in auth_ids or e.type == EventTypes.Create
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}
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e.internal_metadata.outlier = True
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auth_event.internal_metadata.outlier = True
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logger.debug(
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"_check_event_auth %s missing_auth: %s",
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event.event_id,
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e.event_id,
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auth_event.event_id,
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)
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missing_auth_event_context = (
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await self._state_handler.compute_event_context(e)
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await self._state_handler.compute_event_context(auth_event)
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)
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await self._auth_and_persist_event(
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missing_auth_event_context = await self._check_event_auth(
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origin,
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e,
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auth_event,
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missing_auth_event_context,
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claimed_auth_event_map=auth,
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)
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await self.persist_events_and_notify(
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event.room_id, [(auth_event, missing_auth_event_context)]
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)
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if e.event_id in event_auth_events:
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auth_events[(e.type, e.state_key)] = e
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if auth_event.event_id in event_auth_events:
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auth_events[
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(auth_event.type, auth_event.state_key)
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] = auth_event
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except AuthError:
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pass
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@ -1733,10 +1700,13 @@ class FederationEventHandler:
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context: The event context.
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backfilled: True if the event was backfilled.
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"""
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# this method should not be called on outliers (those code paths call
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# persist_events_and_notify directly.)
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assert not event.internal_metadata.outlier
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try:
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if (
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not event.internal_metadata.is_outlier()
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and not backfilled
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not backfilled
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and not context.rejected
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and (await self._store.get_min_depth(event.room_id)) <= event.depth
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):
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@ -76,9 +76,18 @@ class MessageAcceptTests(unittest.HomeserverTestCase):
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self.handler = self.homeserver.get_federation_handler()
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federation_event_handler = self.homeserver.get_federation_event_handler()
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federation_event_handler._check_event_auth = lambda origin, event, context, state, claimed_auth_event_map, backfilled: succeed(
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context
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)
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async def _check_event_auth(
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origin,
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event,
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context,
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state=None,
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claimed_auth_event_map=None,
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backfilled=False,
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):
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return context
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federation_event_handler._check_event_auth = _check_event_auth
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self.client = self.homeserver.get_federation_client()
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self.client._check_sigs_and_hash_and_fetch = lambda dest, pdus, **k: succeed(
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pdus
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