refactor: Ruma upstreaming, half-baked edition

Co-authored-by: Jade Ellis <jade@ellis.link>

src/core/matrix/pdu/redact.rs

@@ -1,16 +1,20 @@
 use ruma::{RoomVersionId, canonical_json::redact_content_in_place};
 use serde_json::{Value as JsonValue, json, value::to_raw_value};
 
-use crate::{Error, Result, err, implement};
+use crate::{Err, Error, Result, err, implement};
 
 #[implement(super::Pdu)]
 pub fn redact(&mut self, room_version_id: &RoomVersionId, reason: JsonValue) -> Result {
+	let Some(rules) = room_version_id.rules() else {
+		return Err!("Cannot redact event for unknown room version {room_version_id}")
+	};
+
 	self.unsigned = None;
 
 	let mut content = serde_json::from_str(self.content.get())
 		.map_err(|e| err!(Request(BadJson("Failed to deserialize content into type: {e}"))))?;
 
-	redact_content_in_place(&mut content, room_version_id, self.kind.to_string())
+	redact_content_in_place(&mut content, &rules.redaction, self.kind.to_string())
 		.map_err(|e| Error::Redaction(self.sender.server_name().to_owned(), e))?;
 
 	let reason = serde_json::to_value(reason).expect("Failed to preserialize reason");