From 36a8ec0110008a3b5fe112496aa21a12c409d894 Mon Sep 17 00:00:00 2001
From: Bruno Windels <brunow@matrix.org>
Date: Tue, 8 Sep 2020 17:16:01 +0200
Subject: [PATCH] dont attempt to decrypt redacted events

this will show them as undecryptable for now though
---
 src/matrix/e2ee/RoomEncryption.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/matrix/e2ee/RoomEncryption.js b/src/matrix/e2ee/RoomEncryption.js
index 3538381f..c8f993e5 100644
--- a/src/matrix/e2ee/RoomEncryption.js
+++ b/src/matrix/e2ee/RoomEncryption.js
@@ -56,6 +56,9 @@ export class RoomEncryption {
     }
 
     async decrypt(event, isSync, isTimelineOpen, retryData, txn) {
+        if (event.redacted_because || event.unsigned?.redacted_because) {
+            return;
+        }
         if (event.content?.algorithm !== MEGOLM_ALGORITHM) {
             throw new Error("Unsupported algorithm: " + event.content?.algorithm);
         }