Faster joins: don't stall when a user joins during a fast join (#14606)

Fixes #12801.
Complement tests are at
https://github.com/matrix-org/complement/pull/567.

Avoid blocking on full state when handling a subsequent join into a
partial state room.

Also always perform a remote join into partial state rooms, since we do
not know whether the joining user has been banned and want to avoid
leaking history to banned users.

Signed-off-by: Mathieu Velten <mathieuv@matrix.org>
Co-authored-by: Sean Quah <seanq@matrix.org>
Co-authored-by: David Robertson <davidr@element.io>
This commit is contained in:
Mathieu Velten 2023-02-11 00:31:05 +01:00 committed by GitHub
parent d0c713cc85
commit 6cddf24e36
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12 changed files with 196 additions and 94 deletions

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@ -43,6 +43,7 @@ from synapse.api.errors import (
Codes,
LimitExceededError,
NotFoundError,
PartialStateConflictError,
StoreError,
SynapseError,
)
@ -54,7 +55,6 @@ from synapse.events.utils import copy_and_fixup_power_levels_contents
from synapse.handlers.relations import BundledAggregations
from synapse.module_api import NOT_SPAM
from synapse.rest.admin._base import assert_user_is_admin
from synapse.storage.databases.main.events import PartialStateConflictError
from synapse.streams import EventSource
from synapse.types import (
JsonDict,