增加晶全app静态页面

node_modules/mqtt/lib/connect/wx.js

@@ -0,0 +1,134 @@
+'use strict'
+
+var Transform = require('readable-stream').Transform
+var duplexify = require('duplexify')
+
+/* global wx */
+var socketTask
+var proxy
+var stream
+
+function buildProxy () {
+  var proxy = new Transform()
+  proxy._write = function (chunk, encoding, next) {
+    socketTask.send({
+      data: chunk.buffer,
+      success: function () {
+        next()
+      },
+      fail: function (errMsg) {
+        next(new Error(errMsg))
+      }
+    })
+  }
+  proxy._flush = function socketEnd (done) {
+    socketTask.close({
+      success: function () {
+        done()
+      }
+    })
+  }
+
+  return proxy
+}
+
+function setDefaultOpts (opts) {
+  if (!opts.hostname) {
+    opts.hostname = 'localhost'
+  }
+  if (!opts.path) {
+    opts.path = '/'
+  }
+
+  if (!opts.wsOptions) {
+    opts.wsOptions = {}
+  }
+}
+
+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 bindEventHandler () {
+  socketTask.onOpen(function () {
+    stream.setReadable(proxy)
+    stream.setWritable(proxy)
+    stream.emit('connect')
+  })
+
+  socketTask.onMessage(function (res) {
+    var data = res.data
+
+    if (data instanceof ArrayBuffer) data = Buffer.from(data)
+    else data = Buffer.from(data, 'utf8')
+    proxy.push(data)
+  })
+
+  socketTask.onClose(function () {
+    stream.end()
+    stream.destroy()
+  })
+
+  socketTask.onError(function (res) {
+    stream.destroy(new Error(res.errMsg))
+  })
+}
+
+function buildStream (client, opts) {
+  opts.hostname = opts.hostname || opts.host
+
+  if (!opts.hostname) {
+    throw new Error('Could not determine host. Specify host manually.')
+  }
+
+  var websocketSubProtocol =
+    (opts.protocolId === 'MQIsdp') && (opts.protocolVersion === 3)
+      ? 'mqttv3.1'
+      : 'mqtt'
+
+  setDefaultOpts(opts)
+
+  var url = buildUrl(opts, client)
+  socketTask = wx.connectSocket({
+    url: url,
+    protocols: websocketSubProtocol
+  })
+
+  proxy = buildProxy()
+  stream = duplexify.obj()
+  stream._destroy = function (err, cb) {
+    socketTask.close({
+      success: function () {
+        cb && cb(err)
+      }
+    })
+  }
+
+  var destroyRef = stream.destroy
+  stream.destroy = function () {
+    stream.destroy = destroyRef
+
+    var self = this
+    process.nextTick(function () {
+      socketTask.close({
+        fail: function () {
+          self._destroy(new Error())
+        }
+      })
+    })
+  }.bind(stream)
+
+  bindEventHandler()
+
+  return stream
+}
+
+module.exports = buildStream