From 98013ac20f9753360b08bf50a3c8a7f0d25fc2fa Mon Sep 17 00:00:00 2001
From: David Zhao <david@davidzhao.com>
Date: Mon, 15 Mar 2021 11:06:26 -0700
Subject: [PATCH] /rtc responds to only websocket requests. Fixes #25

---
 pkg/service/rtcservice.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkg/service/rtcservice.go b/pkg/service/rtcservice.go
index a273a455a..ac6017ebc 100644
--- a/pkg/service/rtcservice.go
+++ b/pkg/service/rtcservice.go
@@ -48,6 +48,12 @@ func NewRTCService(conf *config.Config, roomStore RoomStore, roomManager *RoomMa
 }
 
 func (s *RTCService) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	// reject non websocket requests
+	if !websocket.IsWebSocketUpgrade(r) {
+		w.WriteHeader(404)
+		return
+	}
+
 	roomName := r.FormValue("room")
 	reconnectParam := r.FormValue("reconnect")
 	isReconnect := reconnectParam == "1" || reconnectParam == "true"