diff options
Diffstat (limited to 'synapse/storage/events_worker.py')
| -rw-r--r-- | synapse/storage/events_worker.py | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/synapse/storage/events_worker.py b/synapse/storage/events_worker.py index 0a0ca58fc4..9ce19430e8 100644 --- a/synapse/storage/events_worker.py +++ b/synapse/storage/events_worker.py @@ -21,13 +21,14 @@ from canonicaljson import json from twisted.internet import defer -from synapse.api.constants import EventFormatVersions +from synapse.api.constants import EventFormatVersions, EventTypes from synapse.api.errors import NotFoundError from synapse.events import FrozenEvent, event_type_from_format_version # noqa: F401 # these are only included to make the type annotations work from synapse.events.snapshot import EventContext # noqa: F401 from synapse.events.utils import prune_event from synapse.metrics.background_process_metrics import run_as_background_process +from synapse.types import get_domain_from_id from synapse.util.logcontext import ( LoggingContext, PreserveLoggingContext, @@ -174,6 +175,29 @@ class EventsWorkerStore(SQLBaseStore): if not entry: continue + # Some redactions in room version v3 need to be rechecked if we + # didn't have the redacted event at the time, so we recheck on read + # instead. + if not allow_rejected and entry.event.type == EventTypes.Redaction: + if entry.event.internal_metadata.need_to_check_redaction(): + orig = yield self.get_event( + entry.event.redacts, + allow_none=True, + allow_rejected=True, + get_prev_content=False, + ) + expected_domain = get_domain_from_id(entry.event.sender) + if orig and get_domain_from_id(orig.sender) == expected_domain: + # This redaction event is allowed. Mark as not needing a + # recheck. + entry.event.recheck_redaction = False + else: + # We don't have the event that is being redacted, so we + # assume that the event isn't authorized for now. (If we + # later receive the event, then we will always redact + # it anyway, since we have this redaction) + continue + if allow_rejected or not entry.event.rejected_reason: if check_redacted and entry.redacted_event: event = entry.redacted_event |