From 4b93cbbd8d2a7f49b93501ac753bd291d283fda5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sa=C3=BAl=20Ibarra=20Corretg=C3=A9?= <saghul@jitsi.org>
Date: Tue, 22 Oct 2024 15:21:18 +0200
Subject: [PATCH] fix(chat) make reactions processing more resilient

---
 react/features/chat/middleware.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/react/features/chat/middleware.ts b/react/features/chat/middleware.ts
index 54e1535ead..6d341598b1 100644
--- a/react/features/chat/middleware.ts
+++ b/react/features/chat/middleware.ts
@@ -127,11 +127,14 @@ MiddlewareRegistry.register(store => next => action => {
         const { participant, data } = action;
 
         if (data?.name === ENDPOINT_REACTION_NAME) {
-            store.dispatch(pushReactions(data.reactions));
+            // Skip duplicates, keep just 3.
+            const reactions = Array.from(new Set(data.reactions)).slice(0, 3) as string[];
+
+            store.dispatch(pushReactions(reactions));
 
             _handleReceivedMessage(store, {
                 participantId: participant.getId(),
-                message: getReactionMessageFromBuffer(data.reactions),
+                message: getReactionMessageFromBuffer(reactions),
                 privateMessage: false,
                 lobbyChat: false,
                 timestamp: data.timestamp