mqtt stuff added

node_modules/mqtt/lib/connect/wx.js

@@ -0,0 +1,123 @@
+'use strict'
+
+/* global wx */
+var socketOpen = false
+var socketMsgQueue = []
+
+function sendSocketMessage (msg) {
+  if (socketOpen) {
+    wx.sendSocketMessage({
+      data: msg.buffer || msg
+    })
+  } else {
+    socketMsgQueue.push(msg)
+  }
+}
+
+function WebSocket (url, protocols) {
+  var ws = {
+    OPEN: 1,
+    CLOSING: 2,
+    CLOSED: 3,
+    readyState: socketOpen ? 1 : 0,
+    send: sendSocketMessage,
+    close: wx.closeSocket,
+    onopen: null,
+    onmessage: null,
+    onclose: null,
+    onerror: null
+  }
+
+  wx.connectSocket({
+    url: url,
+    protocols: protocols
+  })
+  wx.onSocketOpen(function (res) {
+    ws.readyState = ws.OPEN
+    socketOpen = true
+    for (var i = 0; i < socketMsgQueue.length; i++) {
+      sendSocketMessage(socketMsgQueue[i])
+    }
+    socketMsgQueue = []
+
+    ws.onopen && ws.onopen.apply(ws, arguments)
+  })
+  wx.onSocketMessage(function (res) {
+    ws.onmessage && ws.onmessage.apply(ws, arguments)
+  })
+  wx.onSocketClose(function () {
+    ws.onclose && ws.onclose.apply(ws, arguments)
+    ws.readyState = ws.CLOSED
+    socketOpen = false
+  })
+  wx.onSocketError(function () {
+    ws.onerror && ws.onerror.apply(ws, arguments)
+    ws.readyState = ws.CLOSED
+    socketOpen = false
+  })
+
+  return ws
+}
+
+var websocket = require('websocket-stream')
+var urlModule = require('url')
+
+function buildUrl (opts, client) {
+  var protocol = opts.protocol === 'wxs' ? 'wss' : 'ws'
+  var url = protocol + '://' + opts.hostname + opts.path
+  if (opts.port && opts.port !== 80 && opts.port !== 443) {
+    url = protocol + '://' + opts.hostname + ':' + opts.port + opts.path
+  }
+  if (typeof (opts.transformWsUrl) === 'function') {
+    url = opts.transformWsUrl(url, opts, client)
+  }
+  return url
+}
+
+function setDefaultOpts (opts) {
+  if (!opts.hostname) {
+    opts.hostname = 'localhost'
+  }
+  if (!opts.path) {
+    opts.path = '/'
+  }
+
+  if (!opts.wsOptions) {
+    opts.wsOptions = {}
+  }
+}
+
+function createWebSocket (client, opts) {
+  var websocketSubProtocol =
+    (opts.protocolId === 'MQIsdp') && (opts.protocolVersion === 3)
+      ? 'mqttv3.1'
+      : 'mqtt'
+
+  setDefaultOpts(opts)
+  var url = buildUrl(opts, client)
+  return websocket(WebSocket(url, [websocketSubProtocol]))
+}
+
+function buildBuilder (client, opts) {
+  if (!opts.hostname) {
+    opts.hostname = opts.host
+  }
+
+  if (!opts.hostname) {
+    // Throwing an error in a Web Worker if no `hostname` is given, because we
+    // can not determine the `hostname` automatically.  If connecting to
+    // localhost, please supply the `hostname` as an argument.
+    if (typeof (document) === 'undefined') {
+      throw new Error('Could not determine host. Specify host manually.')
+    }
+    var parsed = urlModule.parse(document.URL)
+    opts.hostname = parsed.hostname
+
+    if (!opts.port) {
+      opts.port = parsed.port
+    }
+  }
+  return createWebSocket(client, opts)
+}
+
+module.exports = buildBuilder