diff --git a/changelog.d/10538.feature b/changelog.d/10538.feature
new file mode 100644
index 0000000000..120c8e8ca0
--- /dev/null
+++ b/changelog.d/10538.feature
@@ -0,0 +1 @@
+Add support for new redaction rules for historical events specified in [MSC2716](https://github.com/matrix-org/matrix-doc/pull/2716).
diff --git a/synapse/api/room_versions.py b/synapse/api/room_versions.py
index f32a40ba4a..11280c4462 100644
--- a/synapse/api/room_versions.py
+++ b/synapse/api/room_versions.py
@@ -76,6 +76,8 @@ class RoomVersion:
# MSC2716: Adds m.room.power_levels -> content.historical field to control
# whether "insertion", "chunk", "marker" events can be sent
msc2716_historical = attr.ib(type=bool)
+ # MSC2716: Adds support for redacting "insertion", "chunk", and "marker" events
+ msc2716_redactions = attr.ib(type=bool)
class RoomVersions:
@@ -92,6 +94,7 @@ class RoomVersions:
msc3083_join_rules=False,
msc2403_knocking=False,
msc2716_historical=False,
+ msc2716_redactions=False,
)
V2 = RoomVersion(
"2",
@@ -106,6 +109,7 @@ class RoomVersions:
msc3083_join_rules=False,
msc2403_knocking=False,
msc2716_historical=False,
+ msc2716_redactions=False,
)
V3 = RoomVersion(
"3",
@@ -120,6 +124,7 @@ class RoomVersions:
msc3083_join_rules=False,
msc2403_knocking=False,
msc2716_historical=False,
+ msc2716_redactions=False,
)
V4 = RoomVersion(
"4",
@@ -134,6 +139,7 @@ class RoomVersions:
msc3083_join_rules=False,
msc2403_knocking=False,
msc2716_historical=False,
+ msc2716_redactions=False,
)
V5 = RoomVersion(
"5",
@@ -148,6 +154,7 @@ class RoomVersions:
msc3083_join_rules=False,
msc2403_knocking=False,
msc2716_historical=False,
+ msc2716_redactions=False,
)
V6 = RoomVersion(
"6",
@@ -162,6 +169,7 @@ class RoomVersions:
msc3083_join_rules=False,
msc2403_knocking=False,
msc2716_historical=False,
+ msc2716_redactions=False,
)
MSC2176 = RoomVersion(
"org.matrix.msc2176",
@@ -176,6 +184,7 @@ class RoomVersions:
msc3083_join_rules=False,
msc2403_knocking=False,
msc2716_historical=False,
+ msc2716_redactions=False,
)
V7 = RoomVersion(
"7",
@@ -190,6 +199,22 @@ class RoomVersions:
msc3083_join_rules=False,
msc2403_knocking=True,
msc2716_historical=False,
+ msc2716_redactions=False,
+ )
+ V8 = RoomVersion(
+ "8",
+ RoomDisposition.STABLE,
+ EventFormatVersions.V3,
+ StateResolutionVersions.V2,
+ enforce_key_validity=True,
+ special_case_aliases_auth=False,
+ strict_canonicaljson=True,
+ limit_notifications_power_levels=True,
+ msc2176_redaction_rules=False,
+ msc3083_join_rules=True,
+ msc2403_knocking=True,
+ msc2716_historical=False,
+ msc2716_redactions=False,
)
MSC2716 = RoomVersion(
"org.matrix.msc2716",
@@ -204,10 +229,11 @@ class RoomVersions:
msc3083_join_rules=False,
msc2403_knocking=True,
msc2716_historical=True,
+ msc2716_redactions=False,
)
- V8 = RoomVersion(
- "8",
- RoomDisposition.STABLE,
+ MSC2716v2 = RoomVersion(
+ "org.matrix.msc2716v2",
+ RoomDisposition.UNSTABLE,
EventFormatVersions.V3,
StateResolutionVersions.V2,
enforce_key_validity=True,
@@ -215,9 +241,10 @@ class RoomVersions:
strict_canonicaljson=True,
limit_notifications_power_levels=True,
msc2176_redaction_rules=False,
- msc3083_join_rules=True,
+ msc3083_join_rules=False,
msc2403_knocking=True,
- msc2716_historical=False,
+ msc2716_historical=True,
+ msc2716_redactions=True,
)
diff --git a/synapse/events/utils.py b/synapse/events/utils.py
index a0c07f62f4..b6da2f60af 100644
--- a/synapse/events/utils.py
+++ b/synapse/events/utils.py
@@ -17,7 +17,7 @@ from typing import Any, Mapping, Union
from frozendict import frozendict
-from synapse.api.constants import EventTypes, RelationTypes
+from synapse.api.constants import EventContentFields, EventTypes, RelationTypes
from synapse.api.errors import Codes, SynapseError
from synapse.api.room_versions import RoomVersion
from synapse.util.async_helpers import yieldable_gather_results
@@ -135,6 +135,12 @@ def prune_event_dict(room_version: RoomVersion, event_dict: dict) -> dict:
add_fields("history_visibility")
elif event_type == EventTypes.Redaction and room_version.msc2176_redaction_rules:
add_fields("redacts")
+ elif room_version.msc2716_redactions and event_type == EventTypes.MSC2716_INSERTION:
+ add_fields(EventContentFields.MSC2716_NEXT_CHUNK_ID)
+ elif room_version.msc2716_redactions and event_type == EventTypes.MSC2716_CHUNK:
+ add_fields(EventContentFields.MSC2716_CHUNK_ID)
+ elif room_version.msc2716_redactions and event_type == EventTypes.MSC2716_MARKER:
+ add_fields(EventContentFields.MSC2716_MARKER_INSERTION)
allowed_fields = {k: v for k, v in event_dict.items() if k in allowed_keys}
|