[MQTT-3.1.0-2] Only one CONNECT for whole session

A Client can only send the CONNECT Packet once over a Network Connection. The Server MUST process a second CONNECT Packet sent from a Client as a protocol violation and disconnect the Client
moscajs · Jul 15, 2019 · 06fc839 · 06fc839
1 parent ef99045
commit 06fc839
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/lib/handlers/index.js b/lib/handlers/index.js
@@ -10,7 +10,12 @@ var handlePubrec = require('./pubrec')
 var handlePing = require('./ping')
 
 function handle (client, packet, done) {
-  if (packet.cmd !== 'connect' && !client.connected) {
+  if (
+    // [MQTT-3.1.0-1]
+    (packet.cmd !== 'connect' && !client.connected) ||
+    // [MQTT-3.1.0-2]
+    (packet.cmd === 'connect' && client.connected)
+  ) {
     client.conn.destroy()
     return
   }