feat(pdu): copy top level redact to content and vice versa

src/api/client_server/room.rs

@@ -671,7 +671,7 @@ pub async fn upgrade_room_route(
             // "creator" key no longer exists in V11 rooms
             create_event_content.remove("creator");
         }
-        _ => unreachable!("Validity of room version already checked")
+        _ => unreachable!("Validity of room version already checked"),
     }
     create_event_content.insert(
         "room_version".into(),

src/service/globals/mod.rs

@@ -181,11 +181,7 @@ impl Service {
             RoomVersionId::V11,
         ];
         // Experimental, partially supported room versions
-        let unstable_room_versions = vec![
-            RoomVersionId::V3,
-            RoomVersionId::V4,
-            RoomVersionId::V5,
-        ];
+        let unstable_room_versions = vec![RoomVersionId::V3, RoomVersionId::V4, RoomVersionId::V5];
 
         let mut s = Self {
             db,

src/service/pdu.rs

@@ -2,7 +2,8 @@ use crate::Error;
 use ruma::{
     canonical_json::redact_content_in_place,
     events::{
-        room::member::RoomMemberEventContent, space::child::HierarchySpaceChildEvent,
+        room::{member::RoomMemberEventContent, redaction::RoomRedactionEventContent},
+        space::child::HierarchySpaceChildEvent,
         AnyEphemeralRoomEvent, AnyMessageLikeEvent, AnyStateEvent, AnyStrippedStateEvent,
         AnySyncStateEvent, AnySyncTimelineEvent, AnyTimelineEvent, StateEvent, TimelineEventType,
     },
@@ -25,7 +26,7 @@ pub struct EventHash {
     pub sha256: String,
 }
 
-#[derive(Clone, Deserialize, Serialize, Debug)]
+#[derive(Clone, Deserialize, Debug, Serialize)]
 pub struct PduEvent {
     pub event_id: Arc<EventId>,
     pub room_id: OwnedRoomId,
@@ -96,10 +97,31 @@ impl PduEvent {
         Ok(())
     }
 
+    pub fn copy_redacts(&self) -> (Option<Arc<EventId>>, Box<RawJsonValue>) {
+        if self.kind == TimelineEventType::RoomRedaction {
+            if let Ok(mut content) =
+                serde_json::from_str::<RoomRedactionEventContent>(self.content.get())
+            {
+                if let Some(redacts) = content.redacts {
+                    return (Some(redacts.into()), self.content.clone());
+                } else if let Some(redacts) = self.redacts.clone() {
+                    content.redacts = Some(redacts.into());
+                    return (
+                        self.redacts.clone(),
+                        to_raw_value(&content).expect("Must be valid, we only added redacts field"),
+                    );
+                }
+            }
+        }
+
+        (self.redacts.clone(), self.content.clone())
+    }
+
     #[tracing::instrument(skip(self))]
     pub fn to_sync_room_event(&self) -> Raw<AnySyncTimelineEvent> {
+        let (redacts, content) = self.copy_redacts();
         let mut json = json!({
-            "content": self.content,
+            "content": content,
             "type": self.kind,
             "event_id": self.event_id,
             "sender": self.sender,
@@ -112,7 +134,7 @@ impl PduEvent {
         if let Some(state_key) = &self.state_key {
             json["state_key"] = json!(state_key);
         }
-        if let Some(redacts) = &self.redacts {
+        if let Some(redacts) = &redacts {
             json["redacts"] = json!(redacts);
         }
 
@@ -146,8 +168,9 @@ impl PduEvent {
 
     #[tracing::instrument(skip(self))]
     pub fn to_room_event(&self) -> Raw<AnyTimelineEvent> {
+        let (redacts, content) = self.copy_redacts();
         let mut json = json!({
-            "content": self.content,
+            "content": content,
             "type": self.kind,
             "event_id": self.event_id,
             "sender": self.sender,
@@ -161,7 +184,7 @@ impl PduEvent {
         if let Some(state_key) = &self.state_key {
             json["state_key"] = json!(state_key);
         }
-        if let Some(redacts) = &self.redacts {
+        if let Some(redacts) = &redacts {
             json["redacts"] = json!(redacts);
         }
 
@@ -170,8 +193,9 @@ impl PduEvent {
 
     #[tracing::instrument(skip(self))]
     pub fn to_message_like_event(&self) -> Raw<AnyMessageLikeEvent> {
+        let (redacts, content) = self.copy_redacts();
         let mut json = json!({
-            "content": self.content,
+            "content": content,
             "type": self.kind,
             "event_id": self.event_id,
             "sender": self.sender,
@@ -185,7 +209,7 @@ impl PduEvent {
         if let Some(state_key) = &self.state_key {
             json["state_key"] = json!(state_key);
         }
-        if let Some(redacts) = &self.redacts {
+        if let Some(redacts) = &redacts {
             json["redacts"] = json!(redacts);
         }
 

src/service/rooms/timeline/mod.rs

@@ -399,7 +399,8 @@ impl Service {
                         }
                     }
                     RoomVersionId::V11 => {
-                        let content = serde_json::from_str::<RoomRedactionEventContent>(pdu.content.get())
+                        let content =
+                            serde_json::from_str::<RoomRedactionEventContent>(pdu.content.get())
                                 .map_err(|_| {
                                     Error::bad_database("Invalid content in redaction pdu.")
                                 })?;
@@ -407,7 +408,7 @@ impl Service {
                             self.redact_pdu(redact_id, pdu)?;
                         }
                     }
-                    _ => unreachable!("Validity of room version already checked")
+                    _ => unreachable!("Validity of room version already checked"),
                 };
             }
             TimelineEventType::SpaceChild => {
@@ -1015,10 +1016,7 @@ impl Service {
             let mut pdu = self
                 .get_pdu_from_id(&pdu_id)?
                 .ok_or_else(|| Error::bad_database("PDU ID points to invalid PDU."))?;
-            let room_version_id = services()
-                .rooms
-                .state
-                .get_room_version(&pdu.room_id)?;
+            let room_version_id = services().rooms.state.get_room_version(&pdu.room_id)?;
             pdu.redact(room_version_id, reason)?;
             self.replace_pdu(
                 &pdu_id,