mqtt stuff added

node_modules/mqtt/lib/connect/index.js

@@ -0,0 +1,144 @@
+'use strict'
+
+var MqttClient = require('../client')
+var Store = require('../store')
+var url = require('url')
+var xtend = require('xtend')
+var protocols = {}
+
+if (process.title !== 'browser') {
+  protocols.mqtt = require('./tcp')
+  protocols.tcp = require('./tcp')
+  protocols.ssl = require('./tls')
+  protocols.tls = require('./tls')
+  protocols.mqtts = require('./tls')
+} else {
+  protocols.wx = require('./wx')
+  protocols.wxs = require('./wx')
+}
+
+protocols.ws = require('./ws')
+protocols.wss = require('./ws')
+
+/**
+ * Parse the auth attribute and merge username and password in the options object.
+ *
+ * @param {Object} [opts] option object
+ */
+function parseAuthOptions (opts) {
+  var matches
+  if (opts.auth) {
+    matches = opts.auth.match(/^(.+):(.+)$/)
+    if (matches) {
+      opts.username = matches[1]
+      opts.password = matches[2]
+    } else {
+      opts.username = opts.auth
+    }
+  }
+}
+
+/**
+ * connect - connect to an MQTT broker.
+ *
+ * @param {String} [brokerUrl] - url of the broker, optional
+ * @param {Object} opts - see MqttClient#constructor
+ */
+function connect (brokerUrl, opts) {
+  if ((typeof brokerUrl === 'object') && !opts) {
+    opts = brokerUrl
+    brokerUrl = null
+  }
+
+  opts = opts || {}
+
+  if (brokerUrl) {
+    var parsed = url.parse(brokerUrl, true)
+    if (parsed.port != null) {
+      parsed.port = Number(parsed.port)
+    }
+
+    opts = xtend(parsed, opts)
+
+    if (opts.protocol === null) {
+      throw new Error('Missing protocol')
+    }
+    opts.protocol = opts.protocol.replace(/:$/, '')
+  }
+
+  // merge in the auth options if supplied
+  parseAuthOptions(opts)
+
+  // support clientId passed in the query string of the url
+  if (opts.query && typeof opts.query.clientId === 'string') {
+    opts.clientId = opts.query.clientId
+  }
+
+  if (opts.cert && opts.key) {
+    if (opts.protocol) {
+      if (['mqtts', 'wss', 'wxs'].indexOf(opts.protocol) === -1) {
+        switch (opts.protocol) {
+          case 'mqtt':
+            opts.protocol = 'mqtts'
+            break
+          case 'ws':
+            opts.protocol = 'wss'
+            break
+          case 'wx':
+            opts.protocol = 'wxs'
+            break
+          default:
+            throw new Error('Unknown protocol for secure connection: "' + opts.protocol + '"!')
+        }
+      }
+    } else {
+      // don't know what protocol he want to use, mqtts or wss
+      throw new Error('Missing secure protocol key')
+    }
+  }
+
+  if (!protocols[opts.protocol]) {
+    var isSecure = ['mqtts', 'wss'].indexOf(opts.protocol) !== -1
+    opts.protocol = [
+      'mqtt',
+      'mqtts',
+      'ws',
+      'wss',
+      'wx',
+      'wxs'
+    ].filter(function (key, index) {
+      if (isSecure && index % 2 === 0) {
+        // Skip insecure protocols when requesting a secure one.
+        return false
+      }
+      return (typeof protocols[key] === 'function')
+    })[0]
+  }
+
+  if (opts.clean === false && !opts.clientId) {
+    throw new Error('Missing clientId for unclean clients')
+  }
+
+  function wrapper (client) {
+    if (opts.servers) {
+      if (!client._reconnectCount || client._reconnectCount === opts.servers.length) {
+        client._reconnectCount = 0
+      }
+
+      opts.host = opts.servers[client._reconnectCount].host
+      opts.port = opts.servers[client._reconnectCount].port
+      opts.hostname = opts.host
+
+      client._reconnectCount++
+    }
+
+    return protocols[opts.protocol](client, opts)
+  }
+
+  return new MqttClient(wrapper, opts)
+}
+
+module.exports = connect
+module.exports.connect = connect
+module.exports.MqttClient = MqttClient
+module.exports.Store = Store