diff --git a/app.js b/app.js
index ed3e9d0..5cb0b3f 100644
--- a/app.js
+++ b/app.js
@@ -57,21 +57,11 @@ config = Object.assign({
 }, config)
 
 // Constants
-const oauthAuth = '{server}/oauth2/authorize?response_type=code&state={state}&redirect_uri={redirect}&client_id={client}&scope=image'
 const port = parseInt(config['Streaming']['port'])
 const streamServer = config['Streaming']['streamServer']
 const streamServerHost = config['Streaming']['serverHost']
 const streamAppName = streamServer.match(/\/([\w-_]+)\/$/)[1]
 
-function teval (str, obj) {
-  let res = str + ''
-  for (let key in obj) {
-    if (res.indexOf('{' + key + '}') === -1) continue
-    res = res.replace('{' + key + '}', obj[key])
-  }
-  return res
-}
-
 // Database
 const dbPromise = Promise.resolve()
   .then(() => sqlite.open(path.join(process.cwd(), config['Streaming']['database']), { Promise, cache: true }))
@@ -486,6 +476,7 @@ wss.on('connection', (ws, request, client) => {
 // Handle upgrade, parse included session
 server.on('upgrade', (request, socket, head) => {
   sessionParser(request, {}, () => {
+    if (!request.session || !request.session.id) return socket.destroy()
     if (request.session && request.session.passport) {
       request.user = request.session.passport.user
     }