diff --git a/synapse/events/utils.py b/synapse/events/utils.py
index a55efcca56..ecfc5c0568 100644
--- a/synapse/events/utils.py
+++ b/synapse/events/utils.py
@@ -108,13 +108,9 @@ def prune_event_dict(room_version: RoomVersion, event_dict: JsonDict) -> JsonDic
"origin_server_ts",
]
- # Room versions from before MSC2176 had additional allowed keys.
- if not room_version.msc2176_redaction_rules:
- allowed_keys.extend(["prev_state", "membership"])
-
- # Room versions before MSC3989 kept the origin field.
- if not room_version.msc3989_redaction_rules:
- allowed_keys.append("origin")
+ # Earlier room versions from had additional allowed keys.
+ if not room_version.updated_redaction_rules:
+ allowed_keys.extend(["prev_state", "membership", "origin"])
event_type = event_dict["type"]
@@ -127,9 +123,9 @@ def prune_event_dict(room_version: RoomVersion, event_dict: JsonDict) -> JsonDic
if event_type == EventTypes.Member:
add_fields("membership")
- if room_version.msc3375_redaction_rules:
+ if room_version.restricted_join_rule_fix:
add_fields(EventContentFields.AUTHORISING_USER)
- if room_version.msc3821_redaction_rules:
+ if room_version.updated_redaction_rules:
# Preserve the signed field under third_party_invite.
third_party_invite = event_dict["content"].get("third_party_invite")
if isinstance(third_party_invite, collections.abc.Mapping):
@@ -141,13 +137,13 @@ def prune_event_dict(room_version: RoomVersion, event_dict: JsonDict) -> JsonDic
elif event_type == EventTypes.Create:
# MSC2176 rules state that create events cannot be redacted.
- if room_version.msc2176_redaction_rules:
+ if room_version.updated_redaction_rules:
return event_dict
add_fields("creator")
elif event_type == EventTypes.JoinRules:
add_fields("join_rule")
- if room_version.msc3083_join_rules:
+ if room_version.restricted_join_rule:
add_fields("allow")
elif event_type == EventTypes.PowerLevels:
add_fields(
@@ -161,14 +157,14 @@ def prune_event_dict(room_version: RoomVersion, event_dict: JsonDict) -> JsonDic
"redact",
)
- if room_version.msc2176_redaction_rules:
+ if room_version.updated_redaction_rules:
add_fields("invite")
elif event_type == EventTypes.Aliases and room_version.special_case_aliases_auth:
add_fields("aliases")
elif event_type == EventTypes.RoomHistoryVisibility:
add_fields("history_visibility")
- elif event_type == EventTypes.Redaction and room_version.msc2176_redaction_rules:
+ elif event_type == EventTypes.Redaction and room_version.updated_redaction_rules:
add_fields("redacts")
# Protect the rel_type and event_id fields under the m.relates_to field.
@@ -477,6 +473,15 @@ def serialize_event(
if config.as_client_event:
d = config.event_format(d)
+ # If the event is a redaction, copy the redacts field from the content to
+ # top-level for backwards compatibility.
+ if (
+ e.type == EventTypes.Redaction
+ and e.room_version.updated_redaction_rules
+ and e.redacts is not None
+ ):
+ d["redacts"] = e.redacts
+
only_event_fields = config.only_event_fields
if only_event_fields:
if not isinstance(only_event_fields, list) or not all(
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