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mqtt-backend/node_modules/aedes/lib/handlers/publish.js

@@ -0,0 +1,65 @@
+'use strict'
+
+const write = require('../write')
+
+function PubAck (packet) {
+  this.cmd = 'puback'
+  this.messageId = packet.messageId
+}
+
+function PubRec (packet) {
+  this.cmd = 'pubrec'
+  this.messageId = packet.messageId
+}
+
+const publishActions = [
+  authorizePublish,
+  enqueuePublish
+]
+function handlePublish (client, packet, done) {
+  const topic = packet.topic
+  let err
+  if (topic.length === 0) {
+    err = new Error('empty topic not allowed in PUBLISH')
+    return done(err)
+  }
+  if (topic.indexOf('#') > -1) {
+    err = new Error('# is not allowed in PUBLISH')
+    return done(err)
+  }
+  if (topic.indexOf('+') > -1) {
+    err = new Error('+ is not allowed in PUBLISH')
+    return done(err)
+  }
+  client.broker._series(client, publishActions, packet, done)
+}
+
+function enqueuePublish (packet, done) {
+  const client = this
+
+  switch (packet.qos) {
+    case 2:
+      client.broker.persistence.incomingStorePacket(client, packet, function (err) {
+        if (err) { return done(err) }
+        write(client, new PubRec(packet), done)
+      })
+      break
+    case 1:
+      write(client, new PubAck(packet), function (err) {
+        if (err) { return done(err) }
+        client.broker.publish(packet, client, done)
+      })
+      break
+    case 0:
+      client.broker.publish(packet, client, done)
+      break
+    default:
+      // nothing to do
+  }
+}
+
+function authorizePublish (packet, done) {
+  this.broker.authorizePublish(this, packet, done)
+}
+
+module.exports = handlePublish