From ff018e4d752aee3d4250c42df1e9b37ce4f24e1a Mon Sep 17 00:00:00 2001
From: Shauren <shauren.trinity@gmail.com>
Date: Tue, 5 Nov 2019 16:04:52 +0100
Subject: [PATCH] Core/PacketIO: Restrict CMSG_EMOTE to only allow emotes that
 are hardcoded in client

---
 src/server/game/Handlers/ChatHandler.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/server/game/Handlers/ChatHandler.cpp b/src/server/game/Handlers/ChatHandler.cpp
index 522e0578f21..040208d0431 100644
--- a/src/server/game/Handlers/ChatHandler.cpp
+++ b/src/server/game/Handlers/ChatHandler.cpp
@@ -710,6 +710,11 @@ void WorldSession::HandleEmoteOpcode(WorldPacket& recvData)
 
     uint32 emote;
     recvData >> emote;
+
+    // restrict to the only emotes hardcoded in client
+    if (emote != EMOTE_ONESHOT_NONE && emote != EMOTE_ONESHOT_WAVE)
+        return;
+
     sScriptMgr->OnPlayerClearEmote(GetPlayer());
 
     if (_player->GetUInt32Value(UNIT_NPC_EMOTESTATE))