From b10d5d0f4e6c88ee923566cedfc936783d8536d2 Mon Sep 17 00:00:00 2001
From: Lion Kortlepel <development@kortlepel.com>
Date: Mon, 31 Oct 2022 02:34:26 +0100
Subject: [PATCH] fix empty events causing issues in the server

an empty event packet, if sent just right, could crash the server
---
 src/TServer.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/TServer.cpp b/src/TServer.cpp
index 2f02797..e1f115e 100644
--- a/src/TServer.cpp
+++ b/src/TServer.cpp
@@ -222,6 +222,10 @@ void TServer::GlobalParser(const std::weak_ptr<TClient>& Client, std::vector<uin
 void TServer::HandleEvent(TClient& c, const std::string& RawData) {
     // E:Name:Data
     // Data is allowed to have ':'
+    if (RawData.size() < 2) {
+        beammp_debugf("Client '{}' ({}) tried to send an empty event, ignoring", c.GetName(), c.GetID());
+        return;
+    }
     auto NameDataSep = RawData.find(':', 2);
     if (NameDataSep == std::string::npos) {
         beammp_warn("received event in invalid format (missing ':'), got: '" + RawData + "'");