首次提交

2026-07-13 12:06:16 +08:00
commit e3c810b1a6
1690 changed files with 228324 additions and 0 deletions
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+'use strict'
+
+const handleConnect = require('./connect')
+const handleSubscribe = require('./subscribe')
+const handleUnsubscribe = require('./unsubscribe')
+const handlePublish = require('./publish')
+const handlePuback = require('./puback')
+const handlePubrel = require('./pubrel')
+const handlePubrec = require('./pubrec')
+const handlePing = require('./ping')
+
+function handle (client, packet, done) {
+  if (packet.cmd === 'connect') {
+    if (client.connecting || client.connected) {
+      // [MQTT-3.1.0-2]
+      finish(client.conn, packet, done)
+      return
+    }
+    handleConnect(client, packet, done)
+    return
+  }
+
+  if (!client.connecting && !client.connected) {
+    // [MQTT-3.1.0-1]
+    finish(client.conn, packet, done)
+    return
+  }
+
+  switch (packet.cmd) {
+    case 'publish':
+      handlePublish(client, packet, done)
+      break
+    case 'subscribe':
+      handleSubscribe(client, packet, false, done)
+      break
+    case 'unsubscribe':
+      handleUnsubscribe(client, packet, done)
+      break
+    case 'pubcomp':
+    case 'puback':
+      handlePuback(client, packet, done)
+      break
+    case 'pubrel':
+      handlePubrel(client, packet, done)
+      break
+    case 'pubrec':
+      handlePubrec(client, packet, done)
+      break
+    case 'pingreq':
+      handlePing(client, packet, done)
+      break
+    case 'disconnect':
+      // [MQTT-3.14.4-3]
+      client._disconnected = true
+      // [MQTT-3.14.4-1] [MQTT-3.14.4-2]
+      client.conn.destroy()
+      done()
+      return
+    default:
+      client.conn.destroy()
+      done()
+      return
+  }
+
+  if (client._keepaliveInterval > 0) {
+    client._keepaliveTimer.reschedule(client._keepaliveInterval)
+  }
+}
+
+function finish (conn, packet, done) {
+  conn.destroy()
+  const error = new Error('Invalid protocol')
+  error.info = packet
+  done(error)
+}
+
+module.exports = handle