(null);\r\n\r\n const startMqtt = (val: string, callback: OnMessageCallback) => {\r\n //设置订阅地址\r\n PublicMqtt.value = new MQTT(val);\r\n //初始化mqtt\r\n PublicMqtt.value.init();\r\n //链接mqtt\r\n PublicMqtt.value.link();\r\n getMessage(callback);\r\n };\r\n const getMessage = (callback: OnMessageCallback) => {\r\n // console.log(callback,\"18\")\r\n // PublicMqtt.value?.client.on('message', callback);\r\n PublicMqtt.value?.get(callback);\r\n };\r\n// onUnmounted(() => {\r\n// //页面销毁结束订阅\r\n// if (PublicMqtt.value) {\r\n// PublicMqtt.value.unsubscribes();\r\n// PublicMqtt.value.over();\r\n// }\r\n// });\r\n\r\n return {\r\n startMqtt,\r\n };\r\n}\r\n","\nimport useMqtt from '@/utils/usemqtt';\nconst { startMqtt } = useMqtt();\n// import {getLastDevicePosition,getAddress} from \"@/api/login\"\nlet myIcons = require(\"@/assets/img/map33.png\");\nimport { defineComponent, onMounted,reactive,ref} from \"vue\";\nimport codeEditor from '@/components/codeEditor/codeEditor.vue';\nimport { useRouter } from 'vue-router';\nexport default defineComponent({\n setup() {\n let router=useRouter();\n let add:any =localStorage.getItem(\"token\");\n const lust = JSON.parse(add);\n let deviceSnsss:any = router.currentRoute.value.query.devicesn;\n const objarr = reactive({\n deviceSn:'',\n address:'',\n city:'',\n createtime:'',\n jingdu:'',\n positionId:'',\n remark:'',\n updatetime:\"\",\n weidu:'',\n receiveNews:\"\",\n });\n // startMqtt(\"864784045883364\", (topic, message) => {\n // console.log(message,\"41\")\n // })\n\n/*/* */\n onMounted(() => {\n \n try{\n let datavalue:any = {}\n startMqtt(deviceSnsss, (topic, message) => {\n // const msg = JSON.parse(message);\n console.log(message,\"66\");\n let data = message;\n\t\t\t\t\t\tif(!!data){\n\t\t\t\t\t\tlet datatype=data[28];\n\t\t\t\t\t\t if(data.length < 30){\n\t\t\t\t\t\t }else{\n\t\t\t\t\t\t\tlet devicesn=[];\n\t\t\t\t\t\t\tlet endIndex=27;\n\t\t\t\t\t\t\t\tfor(let i=27;i>=10;i--)\n\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\tif(data[i]!=0)\n\t\t\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\t\tendIndex=i;\n\t\t\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tfor(let i=10;i<=endIndex;i++)\n\t\t\t\t\t\t\t\t{ \n\t\t\t\t\t\t\t\t\tdevicesn.push(data[i]);//((char)data[i]);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tconst\tdevicesnd = devicesn.join(\"\");\n\t\t\t\t\t\t\t// console.log(devicesnd,\"161行打印\")\n\t\t\t\t\t\t\t // 参数信息010\n\t\t\t\t\t\t\t if(datatype==0){\n\t\t\t\t\t\t\t \tlet isReadSet=data[29];\n\t\t\t\t\t\t\t \t//0是读取1是设置\n\t\t\t\t\t\t\t \tif(isReadSet==1){\n\t\t\t\t\t\t\t \t\t\n\t\t\t\t\t\t\t \t}else{\n // console.log(\"139\")\n\t\t\t\t\t\t\t \t\tlet paracount=data[30]*256+data[31];//参数个数\n\t\t\t\t\t\t\t \t\tif(paracount<9)\n\t\t\t\t\t\t\t \t\treturn;\n\t\t\t\t\t\t\t \t\tdatavalue.onlineId=data[32]*256+data[33];//上线状态ID\n\t\t\t\t\t\t\t \t\tdatavalue.onlneType=data[34];//上线状态数据类型\n\t\t\t\t\t\t\t \t\tdatavalue.onlineValueLen=data[35]*256+data[36];//上线状态值长度\n\t\t\t\t\t\t\t \t\tdatavalue.onlineValue=data[37];//上线状态值\n\t\t\t\t\t\t\t \t\tdatavalue.signalId=data[38]*256+data[39];//信号强度ID\n\t\t\t\t\t\t\t \t\tdatavalue.signalType=data[40];//信号数据类型\n\t\t\t\t\t\t\t \t\tdatavalue.signalValueLen=data[41]*256+data[42];//信号值长度\n\t\t\t\t\t\t\t \t\tdatavalue.signalValue=data[43];//信号值\n\t\t\t\t\t\t\t \t\tdatavalue.zhaId=data[44]*256+data[45];//iskaizhaID\n\t\t\t\t\t\t\t \t\tdatavalue.zhaType=data[46];//iskaizha数据类型\n\t\t\t\t\t\t\t \t\tdatavalue.zhaValueLen=data[47]*256+data[48];//iskaizha长度\n\t\t\t\t\t\t\t \t\tdatavalue.zhaValue=data[49];//iskaizha值\n\t\t\t\t\t\t\t \t\tdatavalue.warningId=data[50]*256+data[51];//warningID2\n\t\t\t\t\t\t\t \t\tdatavalue.warningType=data[52];//warning数据类型\n\t\t\t\t\t\t\t \t\tdatavalue.warningValueLen=data[53]*256+data[54];//warning长度\n\t\t\t\t\t\t\t \t\tdatavalue.warningValue=data[55];//warning值\n\t\t\t\t\t\t\t \t\tdatavalue.voltageId=data[56]*256+data[57];//voltageID\n\t\t\t\t\t\t\t \t\tdatavalue.voltageType=data[58];//voltage数据类型\n\t\t\t\t\t\t\t \t\tdatavalue.voltageValueLen=data[59]*256+data[60];//voltage长度\n\t\t\t\t\t\t\t \t\tdatavalue.voltageValue=data[61]*256+data[62];//voltage值\n\t\t\t\t\t\t\t \t\tdatavalue.currentId=data[63]*256+data[64];//currentID\n\t\t\t\t\t\t\t \t\tdatavalue.currentType=data[65];//current数据类型\n\t\t\t\t\t\t\t \t\tdatavalue.currentValueLen=data[66]*256+data[67];//current长度\n\t\t\t\t\t\t\t \t\tdatavalue.currentValue=data[68]*256+data[69];//current值\n\t\t\t\t\t\t\t \t\tdatavalue.leakCurrentId=data[70]*256+data[71];//leakCurrentID\n\t\t\t\t\t\t\t \t\tdatavalue.leakCurrentType=data[72];//leakCurrent数据类型\n\t\t\t\t\t\t\t \t\tdatavalue.leakCurrentValueLen=data[73]*256+data[74];//leakCurrent长度\n\t\t\t\t\t\t\t \t\tdatavalue.leakCurrentValue=data[75]*256+data[76];//leakCurrent值\n\t\t\t\t\t\t\t \t\tdatavalue.positionTypeId=data[77]*256+data[78];//positionTypeID\n\t\t\t\t\t\t\t \t\tdatavalue.positionTypeType=data[79];//positionType数据类型\n\t\t\t\t\t\t\t \t\tdatavalue.positionTypeValueLen=data[80]*256+data[81];//positionType长度\n\t\t\t\t\t\t\t \t\tdatavalue.positionTypeValue=data[82];//positionType值\n\t\t\t\t\t\t\t \t\tdatavalue.positionId=data[83]*256+data[84];//positionID\n\t\t\t\t\t\t\t \t\tdatavalue.positionType=data[85];//position数据类型1\n\t\t\t\t\t\t\t \t\tdatavalue.positionValueLen=data[86]*256+data[87];//position长度\n\t\t\t\t\t\t\t\t\tdatavalue.jingduValue = ((data[88]*256*256*256)+(data[89]*256*256)+(data[90]*256)+(data[91]))/1000000;\n\t\t\t\t\t\t\t\t\tdatavalue.weiduValue = ((data[92]*256*256*256)+(data[93]*256*256)+(data[94]*256)+(data[95]))/1000000;\n }\n // console.log(datavalue.onlineId,\"12312\")\n\t\t\t\t\t\t\t\t// let address = {\n\t\t\t\t\t\t\t\t// \tjingdu:datavalue.jingduValue,\n\t\t\t\t\t\t\t\t// \tweidu:datavalue.weiduValue,\n // }\n let addressqq:any = \"\";\n var params = new URLSearchParams();\n params.append('jingdu', datavalue.jingduValue);\n params.append('weidu',datavalue.weiduValue);\n\t\t// \t\t\t\t\t\tgetAddress(params).then((res)=>{\n // let data:any = res;\n // datavalue.address = data.address;\n\n // var timezone = 8; //目标时区时间，东八区\n\t\t// \t\t\t\t var offset_GMT = new Date().getTimezoneOffset(); // 本地时间和格林威治的时间差，单位为分钟\n\t\t// \t\t\t\t var nowDate = new Date().getTime(); // 本地时间距 1970 年 1 月 1 日午夜（GMT 时间）之间的毫秒数\n\t\t// \t\t\t\t var targetDate = new Date(nowDate + offset_GMT * 60 * 1000 + timezone * 60 * 60 * 1000);\n\t\t// \t\t\t\t let datae = new Date(targetDate);\n\t\t// \t\t\t\t var YY = datae.getFullYear() + '-';\n\t\t// \t\t\t\t var MM =(datae.getMonth() + 1 < 10? '0' + (datae.getMonth() + 1): datae.getMonth() + 1) + '-';\n\t\t// \t\t\t\t var DD = datae.getDate() < 10 ? '0' + datae.getDate() : datae.getDate();\n\t\t// \t\t\t\t var hh =(datae.getHours() < 10 ? '0' + datae.getHours() : datae.getHours())+':';\n\t\t// \t\t\t\t var mm =(datae.getMinutes() < 10 ? '0' + datae.getMinutes() : datae.getMinutes()) +':';\n\t\t// \t\t\t\t var ss =datae.getSeconds() < 10 ? '0' + datae.getSeconds() : datae.getSeconds();\n\t\t// \t\t\t\t let mydatavalue = `${YY}${MM}${DD} ${hh}${mm}${ss}`;\n // // @ts-ignore //忽略提示\n // let map = new BMap.Map(\"map\"); // 创建地图实例\n // // @ts-ignore //忽略提示\n // let point = new BMap.Point(datavalue.jingduValue, datavalue.weiduValue); // 创建点坐标\n // map.enableScrollWheelZoom(true);//鼠标滑动地图\n // map.centerAndZoom(point, 10);\n // // @ts-ignore //忽略提示\n // // 将标注添加到地图中 \n // let datas = [{ x: datavalue.jingduValue, y: datavalue.weiduValue, name: '王五' }]\n // datas.forEach((e, i) => {\n // // 创建point, 将x,y值传入\n // // @ts-ignore //忽略提示\n // let pointNumber = new BMap.Point(e.x, e.y)\n // // 创建信息窗口对象 \n // var opts = {\n\t\t// \t\twidth: 300, // 信息窗口宽度\n\t\t// \t\theight: 110, // 信息窗口高度\n\t\t// \t\ttitle : \"设备信息\", // 信息窗口标题\n\t\t// \t\tmessage:\"\"\n // };\n \n\t\t// \tvar content = ` 设备编号: ${devicesnd}
\n\t\t// \t 设备位置: ${datavalue.address}
\n\t\t// \t 设备时间: ${mydatavalue}
`\n // // @ts-ignore //忽略提示\n // var infoWindow = new BMap.InfoWindow(content, opts); // 创建信息窗口对象\n // // 将data中的name加入地图中\n // // @ts-ignore //忽略提示\n // var label = new BMap.Label(e.name, {\n // // @ts-ignore //忽略提示\n // offset: new BMap.Size(25, 5)\n // });\n // markerFun(pointNumber, infoWindow, label)\n // })\n // // @ts-ignore //忽略提示\n // function markerFun(point, infoWindows, label) {\n // // @ts-ignore //忽略提示\n // // var myIcon = new BMap.Icon(require(\"@/assets/img/map33.png\"), new BMap.Size(84, 84)) \n // var myIcon = new BMap.Icon(myIcons, new BMap.Size(84, 84)) \n // // var myIcon = new BMap.Icon(require(`${myIcons}`), new BMap.Size(84, 84)) \n // // @ts-ignore //忽略提示\n // var marker = new BMap.Marker(point, { icon: myIcon }) // 创建标注 \n // map.addOverlay(marker) // 将标注添加到地图中\n // // @ts-ignore //忽略提示\n // // marker.setLabel(label); // 将data中的name添加到地图中\n // // 标注的点击事件\n // // @ts-ignore //忽略提示\n // marker.addEventListener(\"click\", function (event) {\n // // console.log(event,\"67\")\n // map.openInfoWindow(infoWindows, point);//参数：窗口、点 根据点击的点出现对应的窗口\n // });\n // }\n\t\t// })\n \n // 获取当前地理位置\n // @ts-ignore //忽略提示\n // var geolocation = new BMap.Geolocation();\n // // @ts-ignore //忽略提示\n // geolocation.getCurrentPosition(function (r) {\n // // @ts-ignore //忽略提示\n // if (this.getStatus() == BMAP_STATUS_SUCCESS) {\n // // @ts-ignore //忽略提示\n // var mk = new BMap.Marker(r.point);\n // map.addOverlay(mk);\n // map.panTo(r.point);\n // // alert('您的位置：' + r.point.lng + ',' + r.point.lat);\n // } else {\n // // alert('failed' + this.getStatus());\n // }\n // });\n // })\n }else if(datatype==1){//指令设置\n }\n }\n }\n});\n }catch(err){console.log(\"请先设置密钥\")}\n });\n return{\n objarr,\n // datavalue,\n } \n },\n components: {\n codeEditor\n },\n});\n","import { render } from \"./baidu.vue?vue&type=template&id=54410e88&scoped=true&ts=true\"\nimport script from \"./baidu.vue?vue&type=script&lang=ts\"\nexport * from \"./baidu.vue?vue&type=script&lang=ts\"\n\nimport \"./baidu.vue?vue&type=style&index=0&id=54410e88&scoped=true&lang=css\"\n\nimport exportComponent from \"E:\\\\vue\\\\流锋管理\\\\node_modules\\\\vue-loader-v16\\\\dist\\\\exportHelper.js\"\nconst __exports__ = /*#__PURE__*/exportComponent(script, [['render',render],['__scopeId',\"data-v-54410e88\"]])\n\nexport default __exports__","'use strict'; // undocumented cb() API, needed for core, not for public API\n\nfunction destroy(err, cb) {\n var _this = this;\n\n var readableDestroyed = this._readableState && this._readableState.destroyed;\n var writableDestroyed = this._writableState && this._writableState.destroyed;\n\n if (readableDestroyed || writableDestroyed) {\n if (cb) {\n cb(err);\n } else if (err) {\n if (!this._writableState) {\n process.nextTick(emitErrorNT, this, err);\n } else if (!this._writableState.errorEmitted) {\n this._writableState.errorEmitted = true;\n process.nextTick(emitErrorNT, this, err);\n }\n }\n\n return this;\n } // we set destroyed to true before firing error callbacks in order\n // to make it re-entrance safe in case destroy() is called within callbacks\n\n\n if (this._readableState) {\n this._readableState.destroyed = true;\n } // if this is a duplex stream mark the writable part as destroyed as well\n\n\n if (this._writableState) {\n this._writableState.destroyed = true;\n }\n\n this._destroy(err || null, function (err) {\n if (!cb && err) {\n if (!_this._writableState) {\n process.nextTick(emitErrorAndCloseNT, _this, err);\n } else if (!_this._writableState.errorEmitted) {\n _this._writableState.errorEmitted = true;\n process.nextTick(emitErrorAndCloseNT, _this, err);\n } else {\n process.nextTick(emitCloseNT, _this);\n }\n } else if (cb) {\n process.nextTick(emitCloseNT, _this);\n cb(err);\n } else {\n process.nextTick(emitCloseNT, _this);\n }\n });\n\n return this;\n}\n\nfunction emitErrorAndCloseNT(self, err) {\n emitErrorNT(self, err);\n emitCloseNT(self);\n}\n\nfunction emitCloseNT(self) {\n if (self._writableState && !self._writableState.emitClose) return;\n if (self._readableState && !self._readableState.emitClose) return;\n self.emit('close');\n}\n\nfunction undestroy() {\n if (this._readableState) {\n this._readableState.destroyed = false;\n this._readableState.reading = false;\n this._readableState.ended = false;\n this._readableState.endEmitted = false;\n }\n\n if (this._writableState) {\n this._writableState.destroyed = false;\n this._writableState.ended = false;\n this._writableState.ending = false;\n this._writableState.finalCalled = false;\n this._writableState.prefinished = false;\n this._writableState.finished = false;\n this._writableState.errorEmitted = false;\n }\n}\n\nfunction emitErrorNT(self, err) {\n self.emit('error', err);\n}\n\nfunction errorOrDestroy(stream, err) {\n // We have tests that rely on errors being emitted\n // in the same tick, so changing this is semver major.\n // For now when you opt-in to autoDestroy we allow\n // the error to be emitted nextTick. In a future\n // semver major update we should change the default to this.\n var rState = stream._readableState;\n var wState = stream._writableState;\n if (rState && rState.autoDestroy || wState && wState.autoDestroy) stream.destroy(err);else stream.emit('error', err);\n}\n\nmodule.exports = {\n destroy: destroy,\n undestroy: undestroy,\n errorOrDestroy: errorOrDestroy\n};","'use strict';\n\nfunction ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }\n\nvar _require = require('buffer'),\n Buffer = _require.Buffer;\n\nvar _require2 = require('util'),\n inspect = _require2.inspect;\n\nvar custom = inspect && inspect.custom || 'inspect';\n\nfunction copyBuffer(src, target, offset) {\n Buffer.prototype.copy.call(src, target, offset);\n}\n\nmodule.exports =\n/*#__PURE__*/\nfunction () {\n function BufferList() {\n _classCallCheck(this, BufferList);\n\n this.head = null;\n this.tail = null;\n this.length = 0;\n }\n\n _createClass(BufferList, [{\n key: \"push\",\n value: function push(v) {\n var entry = {\n data: v,\n next: null\n };\n if (this.length > 0) this.tail.next = entry;else this.head = entry;\n this.tail = entry;\n ++this.length;\n }\n }, {\n key: \"unshift\",\n value: function unshift(v) {\n var entry = {\n data: v,\n next: this.head\n };\n if (this.length === 0) this.tail = entry;\n this.head = entry;\n ++this.length;\n }\n }, {\n key: \"shift\",\n value: function shift() {\n if (this.length === 0) return;\n var ret = this.head.data;\n if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;\n --this.length;\n return ret;\n }\n }, {\n key: \"clear\",\n value: function clear() {\n this.head = this.tail = null;\n this.length = 0;\n }\n }, {\n key: \"join\",\n value: function join(s) {\n if (this.length === 0) return '';\n var p = this.head;\n var ret = '' + p.data;\n\n while (p = p.next) {\n ret += s + p.data;\n }\n\n return ret;\n }\n }, {\n key: \"concat\",\n value: function concat(n) {\n if (this.length === 0) return Buffer.alloc(0);\n var ret = Buffer.allocUnsafe(n >>> 0);\n var p = this.head;\n var i = 0;\n\n while (p) {\n copyBuffer(p.data, ret, i);\n i += p.data.length;\n p = p.next;\n }\n\n return ret;\n } // Consumes a specified amount of bytes or characters from the buffered data.\n\n }, {\n key: \"consume\",\n value: function consume(n, hasStrings) {\n var ret;\n\n if (n < this.head.data.length) {\n // `slice` is the same for buffers and strings.\n ret = this.head.data.slice(0, n);\n this.head.data = this.head.data.slice(n);\n } else if (n === this.head.data.length) {\n // First chunk is a perfect match.\n ret = this.shift();\n } else {\n // Result spans more than one buffer.\n ret = hasStrings ? this._getString(n) : this._getBuffer(n);\n }\n\n return ret;\n }\n }, {\n key: \"first\",\n value: function first() {\n return this.head.data;\n } // Consumes a specified amount of characters from the buffered data.\n\n }, {\n key: \"_getString\",\n value: function _getString(n) {\n var p = this.head;\n var c = 1;\n var ret = p.data;\n n -= ret.length;\n\n while (p = p.next) {\n var str = p.data;\n var nb = n > str.length ? str.length : n;\n if (nb === str.length) ret += str;else ret += str.slice(0, n);\n n -= nb;\n\n if (n === 0) {\n if (nb === str.length) {\n ++c;\n if (p.next) this.head = p.next;else this.head = this.tail = null;\n } else {\n this.head = p;\n p.data = str.slice(nb);\n }\n\n break;\n }\n\n ++c;\n }\n\n this.length -= c;\n return ret;\n } // Consumes a specified amount of bytes from the buffered data.\n\n }, {\n key: \"_getBuffer\",\n value: function _getBuffer(n) {\n var ret = Buffer.allocUnsafe(n);\n var p = this.head;\n var c = 1;\n p.data.copy(ret);\n n -= p.data.length;\n\n while (p = p.next) {\n var buf = p.data;\n var nb = n > buf.length ? buf.length : n;\n buf.copy(ret, ret.length - n, 0, nb);\n n -= nb;\n\n if (n === 0) {\n if (nb === buf.length) {\n ++c;\n if (p.next) this.head = p.next;else this.head = this.tail = null;\n } else {\n this.head = p;\n p.data = buf.slice(nb);\n }\n\n break;\n }\n\n ++c;\n }\n\n this.length -= c;\n return ret;\n } // Make sure the linked list only shows the minimal necessary information.\n\n }, {\n key: custom,\n value: function value(_, options) {\n return inspect(this, _objectSpread({}, options, {\n // Only inspect one level.\n depth: 0,\n // It should not recurse.\n customInspect: false\n }));\n }\n }]);\n\n return BufferList;\n}();","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n// A bit simpler than readable streams.\n// Implement an async ._write(chunk, encoding, cb), and it'll handle all\n// the drain event emission and buffering.\n'use strict';\n\nmodule.exports = Writable;\n/* */\n\nfunction WriteReq(chunk, encoding, cb) {\n this.chunk = chunk;\n this.encoding = encoding;\n this.callback = cb;\n this.next = null;\n} // It seems a linked list but it is not\n// there will be only 2 of these for each stream\n\n\nfunction CorkedRequest(state) {\n var _this = this;\n\n this.next = null;\n this.entry = null;\n\n this.finish = function () {\n onCorkedFinish(_this, state);\n };\n}\n/* */\n\n/**/\n\n\nvar Duplex;\n/**/\n\nWritable.WritableState = WritableState;\n/**/\n\nvar internalUtil = {\n deprecate: require('util-deprecate')\n};\n/**/\n\n/**/\n\nvar Stream = require('./internal/streams/stream');\n/**/\n\n\nvar Buffer = require('buffer').Buffer;\n\nvar OurUint8Array = global.Uint8Array || function () {};\n\nfunction _uint8ArrayToBuffer(chunk) {\n return Buffer.from(chunk);\n}\n\nfunction _isUint8Array(obj) {\n return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;\n}\n\nvar destroyImpl = require('./internal/streams/destroy');\n\nvar _require = require('./internal/streams/state'),\n getHighWaterMark = _require.getHighWaterMark;\n\nvar _require$codes = require('../errors').codes,\n ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,\n ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,\n ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,\n ERR_STREAM_CANNOT_PIPE = _require$codes.ERR_STREAM_CANNOT_PIPE,\n ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED,\n ERR_STREAM_NULL_VALUES = _require$codes.ERR_STREAM_NULL_VALUES,\n ERR_STREAM_WRITE_AFTER_END = _require$codes.ERR_STREAM_WRITE_AFTER_END,\n ERR_UNKNOWN_ENCODING = _require$codes.ERR_UNKNOWN_ENCODING;\n\nvar errorOrDestroy = destroyImpl.errorOrDestroy;\n\nrequire('inherits')(Writable, Stream);\n\nfunction nop() {}\n\nfunction WritableState(options, stream, isDuplex) {\n Duplex = Duplex || require('./_stream_duplex');\n options = options || {}; // Duplex streams are both readable and writable, but share\n // the same options object.\n // However, some cases require setting options to different\n // values for the readable and the writable sides of the duplex stream,\n // e.g. options.readableObjectMode vs. options.writableObjectMode, etc.\n\n if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex; // object stream flag to indicate whether or not this stream\n // contains buffers or objects.\n\n this.objectMode = !!options.objectMode;\n if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode; // the point at which write() starts returning false\n // Note: 0 is a valid value, means that we always return false if\n // the entire buffer is not flushed immediately on write()\n\n this.highWaterMark = getHighWaterMark(this, options, 'writableHighWaterMark', isDuplex); // if _final has been called\n\n this.finalCalled = false; // drain event flag.\n\n this.needDrain = false; // at the start of calling end()\n\n this.ending = false; // when end() has been called, and returned\n\n this.ended = false; // when 'finish' is emitted\n\n this.finished = false; // has it been destroyed\n\n this.destroyed = false; // should we decode strings into buffers before passing to _write?\n // this is here so that some node-core streams can optimize string\n // handling at a lower level.\n\n var noDecode = options.decodeStrings === false;\n this.decodeStrings = !noDecode; // Crypto is kind of old and crusty. Historically, its default string\n // encoding is 'binary' so we have to make this configurable.\n // Everything else in the universe uses 'utf8', though.\n\n this.defaultEncoding = options.defaultEncoding || 'utf8'; // not an actual buffer we keep track of, but a measurement\n // of how much we're waiting to get pushed to some underlying\n // socket or file.\n\n this.length = 0; // a flag to see when we're in the middle of a write.\n\n this.writing = false; // when true all writes will be buffered until .uncork() call\n\n this.corked = 0; // a flag to be able to tell if the onwrite cb is called immediately,\n // or on a later tick. We set this to true at first, because any\n // actions that shouldn't happen until \"later\" should generally also\n // not happen before the first write call.\n\n this.sync = true; // a flag to know if we're processing previously buffered items, which\n // may call the _write() callback in the same tick, so that we don't\n // end up in an overlapped onwrite situation.\n\n this.bufferProcessing = false; // the callback that's passed to _write(chunk,cb)\n\n this.onwrite = function (er) {\n onwrite(stream, er);\n }; // the callback that the user supplies to write(chunk,encoding,cb)\n\n\n this.writecb = null; // the amount that is being written when _write is called.\n\n this.writelen = 0;\n this.bufferedRequest = null;\n this.lastBufferedRequest = null; // number of pending user-supplied write callbacks\n // this must be 0 before 'finish' can be emitted\n\n this.pendingcb = 0; // emit prefinish if the only thing we're waiting for is _write cbs\n // This is relevant for synchronous Transform streams\n\n this.prefinished = false; // True if the error was already emitted and should not be thrown again\n\n this.errorEmitted = false; // Should close be emitted on destroy. Defaults to true.\n\n this.emitClose = options.emitClose !== false; // Should .destroy() be called after 'finish' (and potentially 'end')\n\n this.autoDestroy = !!options.autoDestroy; // count buffered requests\n\n this.bufferedRequestCount = 0; // allocate the first CorkedRequest, there is always\n // one allocated and free to use, and we maintain at most two\n\n this.corkedRequestsFree = new CorkedRequest(this);\n}\n\nWritableState.prototype.getBuffer = function getBuffer() {\n var current = this.bufferedRequest;\n var out = [];\n\n while (current) {\n out.push(current);\n current = current.next;\n }\n\n return out;\n};\n\n(function () {\n try {\n Object.defineProperty(WritableState.prototype, 'buffer', {\n get: internalUtil.deprecate(function writableStateBufferGetter() {\n return this.getBuffer();\n }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')\n });\n } catch (_) {}\n})(); // Test _writableState for inheritance to account for Duplex streams,\n// whose prototype chain only points to Readable.\n\n\nvar realHasInstance;\n\nif (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {\n realHasInstance = Function.prototype[Symbol.hasInstance];\n Object.defineProperty(Writable, Symbol.hasInstance, {\n value: function value(object) {\n if (realHasInstance.call(this, object)) return true;\n if (this !== Writable) return false;\n return object && object._writableState instanceof WritableState;\n }\n });\n} else {\n realHasInstance = function realHasInstance(object) {\n return object instanceof this;\n };\n}\n\nfunction Writable(options) {\n Duplex = Duplex || require('./_stream_duplex'); // Writable ctor is applied to Duplexes, too.\n // `realHasInstance` is necessary because using plain `instanceof`\n // would return false, as no `_writableState` property is attached.\n // Trying to use the custom `instanceof` for Writable here will also break the\n // Node.js LazyTransform implementation, which has a non-trivial getter for\n // `_writableState` that would lead to infinite recursion.\n // Checking for a Stream.Duplex instance is faster here instead of inside\n // the WritableState constructor, at least with V8 6.5\n\n var isDuplex = this instanceof Duplex;\n if (!isDuplex && !realHasInstance.call(Writable, this)) return new Writable(options);\n this._writableState = new WritableState(options, this, isDuplex); // legacy.\n\n this.writable = true;\n\n if (options) {\n if (typeof options.write === 'function') this._write = options.write;\n if (typeof options.writev === 'function') this._writev = options.writev;\n if (typeof options.destroy === 'function') this._destroy = options.destroy;\n if (typeof options.final === 'function') this._final = options.final;\n }\n\n Stream.call(this);\n} // Otherwise people can pipe Writable streams, which is just wrong.\n\n\nWritable.prototype.pipe = function () {\n errorOrDestroy(this, new ERR_STREAM_CANNOT_PIPE());\n};\n\nfunction writeAfterEnd(stream, cb) {\n var er = new ERR_STREAM_WRITE_AFTER_END(); // TODO: defer error events consistently everywhere, not just the cb\n\n errorOrDestroy(stream, er);\n process.nextTick(cb, er);\n} // Checks that a user-supplied chunk is valid, especially for the particular\n// mode the stream is in. Currently this means that `null` is never accepted\n// and undefined/non-string values are only allowed in object mode.\n\n\nfunction validChunk(stream, state, chunk, cb) {\n var er;\n\n if (chunk === null) {\n er = new ERR_STREAM_NULL_VALUES();\n } else if (typeof chunk !== 'string' && !state.objectMode) {\n er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer'], chunk);\n }\n\n if (er) {\n errorOrDestroy(stream, er);\n process.nextTick(cb, er);\n return false;\n }\n\n return true;\n}\n\nWritable.prototype.write = function (chunk, encoding, cb) {\n var state = this._writableState;\n var ret = false;\n\n var isBuf = !state.objectMode && _isUint8Array(chunk);\n\n if (isBuf && !Buffer.isBuffer(chunk)) {\n chunk = _uint8ArrayToBuffer(chunk);\n }\n\n if (typeof encoding === 'function') {\n cb = encoding;\n encoding = null;\n }\n\n if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;\n if (typeof cb !== 'function') cb = nop;\n if (state.ending) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {\n state.pendingcb++;\n ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);\n }\n return ret;\n};\n\nWritable.prototype.cork = function () {\n this._writableState.corked++;\n};\n\nWritable.prototype.uncork = function () {\n var state = this._writableState;\n\n if (state.corked) {\n state.corked--;\n if (!state.writing && !state.corked && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);\n }\n};\n\nWritable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {\n // node::ParseEncoding() requires lower case.\n if (typeof encoding === 'string') encoding = encoding.toLowerCase();\n if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new ERR_UNKNOWN_ENCODING(encoding);\n this._writableState.defaultEncoding = encoding;\n return this;\n};\n\nObject.defineProperty(Writable.prototype, 'writableBuffer', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n return this._writableState && this._writableState.getBuffer();\n }\n});\n\nfunction decodeChunk(state, chunk, encoding) {\n if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {\n chunk = Buffer.from(chunk, encoding);\n }\n\n return chunk;\n}\n\nObject.defineProperty(Writable.prototype, 'writableHighWaterMark', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n return this._writableState.highWaterMark;\n }\n}); // if we're already writing something, then just put this\n// in the queue, and wait our turn. Otherwise, call _write\n// If we return false, then we need a drain event, so set that flag.\n\nfunction writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {\n if (!isBuf) {\n var newChunk = decodeChunk(state, chunk, encoding);\n\n if (chunk !== newChunk) {\n isBuf = true;\n encoding = 'buffer';\n chunk = newChunk;\n }\n }\n\n var len = state.objectMode ? 1 : chunk.length;\n state.length += len;\n var ret = state.length < state.highWaterMark; // we must ensure that previous needDrain will not be reset to false.\n\n if (!ret) state.needDrain = true;\n\n if (state.writing || state.corked) {\n var last = state.lastBufferedRequest;\n state.lastBufferedRequest = {\n chunk: chunk,\n encoding: encoding,\n isBuf: isBuf,\n callback: cb,\n next: null\n };\n\n if (last) {\n last.next = state.lastBufferedRequest;\n } else {\n state.bufferedRequest = state.lastBufferedRequest;\n }\n\n state.bufferedRequestCount += 1;\n } else {\n doWrite(stream, state, false, len, chunk, encoding, cb);\n }\n\n return ret;\n}\n\nfunction doWrite(stream, state, writev, len, chunk, encoding, cb) {\n state.writelen = len;\n state.writecb = cb;\n state.writing = true;\n state.sync = true;\n if (state.destroyed) state.onwrite(new ERR_STREAM_DESTROYED('write'));else if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);\n state.sync = false;\n}\n\nfunction onwriteError(stream, state, sync, er, cb) {\n --state.pendingcb;\n\n if (sync) {\n // defer the callback if we are being called synchronously\n // to avoid piling up things on the stack\n process.nextTick(cb, er); // this can emit finish, and it will always happen\n // after error\n\n process.nextTick(finishMaybe, stream, state);\n stream._writableState.errorEmitted = true;\n errorOrDestroy(stream, er);\n } else {\n // the caller expect this to happen before if\n // it is async\n cb(er);\n stream._writableState.errorEmitted = true;\n errorOrDestroy(stream, er); // this can emit finish, but finish must\n // always follow error\n\n finishMaybe(stream, state);\n }\n}\n\nfunction onwriteStateUpdate(state) {\n state.writing = false;\n state.writecb = null;\n state.length -= state.writelen;\n state.writelen = 0;\n}\n\nfunction onwrite(stream, er) {\n var state = stream._writableState;\n var sync = state.sync;\n var cb = state.writecb;\n if (typeof cb !== 'function') throw new ERR_MULTIPLE_CALLBACK();\n onwriteStateUpdate(state);\n if (er) onwriteError(stream, state, sync, er, cb);else {\n // Check if we're actually ready to finish, but don't emit yet\n var finished = needFinish(state) || stream.destroyed;\n\n if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {\n clearBuffer(stream, state);\n }\n\n if (sync) {\n process.nextTick(afterWrite, stream, state, finished, cb);\n } else {\n afterWrite(stream, state, finished, cb);\n }\n }\n}\n\nfunction afterWrite(stream, state, finished, cb) {\n if (!finished) onwriteDrain(stream, state);\n state.pendingcb--;\n cb();\n finishMaybe(stream, state);\n} // Must force callback to be called on nextTick, so that we don't\n// emit 'drain' before the write() consumer gets the 'false' return\n// value, and has a chance to attach a 'drain' listener.\n\n\nfunction onwriteDrain(stream, state) {\n if (state.length === 0 && state.needDrain) {\n state.needDrain = false;\n stream.emit('drain');\n }\n} // if there's something in the buffer waiting, then process it\n\n\nfunction clearBuffer(stream, state) {\n state.bufferProcessing = true;\n var entry = state.bufferedRequest;\n\n if (stream._writev && entry && entry.next) {\n // Fast case, write everything using _writev()\n var l = state.bufferedRequestCount;\n var buffer = new Array(l);\n var holder = state.corkedRequestsFree;\n holder.entry = entry;\n var count = 0;\n var allBuffers = true;\n\n while (entry) {\n buffer[count] = entry;\n if (!entry.isBuf) allBuffers = false;\n entry = entry.next;\n count += 1;\n }\n\n buffer.allBuffers = allBuffers;\n doWrite(stream, state, true, state.length, buffer, '', holder.finish); // doWrite is almost always async, defer these to save a bit of time\n // as the hot path ends with doWrite\n\n state.pendingcb++;\n state.lastBufferedRequest = null;\n\n if (holder.next) {\n state.corkedRequestsFree = holder.next;\n holder.next = null;\n } else {\n state.corkedRequestsFree = new CorkedRequest(state);\n }\n\n state.bufferedRequestCount = 0;\n } else {\n // Slow case, write chunks one-by-one\n while (entry) {\n var chunk = entry.chunk;\n var encoding = entry.encoding;\n var cb = entry.callback;\n var len = state.objectMode ? 1 : chunk.length;\n doWrite(stream, state, false, len, chunk, encoding, cb);\n entry = entry.next;\n state.bufferedRequestCount--; // if we didn't call the onwrite immediately, then\n // it means that we need to wait until it does.\n // also, that means that the chunk and cb are currently\n // being processed, so move the buffer counter past them.\n\n if (state.writing) {\n break;\n }\n }\n\n if (entry === null) state.lastBufferedRequest = null;\n }\n\n state.bufferedRequest = entry;\n state.bufferProcessing = false;\n}\n\nWritable.prototype._write = function (chunk, encoding, cb) {\n cb(new ERR_METHOD_NOT_IMPLEMENTED('_write()'));\n};\n\nWritable.prototype._writev = null;\n\nWritable.prototype.end = function (chunk, encoding, cb) {\n var state = this._writableState;\n\n if (typeof chunk === 'function') {\n cb = chunk;\n chunk = null;\n encoding = null;\n } else if (typeof encoding === 'function') {\n cb = encoding;\n encoding = null;\n }\n\n if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); // .end() fully uncorks\n\n if (state.corked) {\n state.corked = 1;\n this.uncork();\n } // ignore unnecessary end() calls.\n\n\n if (!state.ending) endWritable(this, state, cb);\n return this;\n};\n\nObject.defineProperty(Writable.prototype, 'writableLength', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n return this._writableState.length;\n }\n});\n\nfunction needFinish(state) {\n return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;\n}\n\nfunction callFinal(stream, state) {\n stream._final(function (err) {\n state.pendingcb--;\n\n if (err) {\n errorOrDestroy(stream, err);\n }\n\n state.prefinished = true;\n stream.emit('prefinish');\n finishMaybe(stream, state);\n });\n}\n\nfunction prefinish(stream, state) {\n if (!state.prefinished && !state.finalCalled) {\n if (typeof stream._final === 'function' && !state.destroyed) {\n state.pendingcb++;\n state.finalCalled = true;\n process.nextTick(callFinal, stream, state);\n } else {\n state.prefinished = true;\n stream.emit('prefinish');\n }\n }\n}\n\nfunction finishMaybe(stream, state) {\n var need = needFinish(state);\n\n if (need) {\n prefinish(stream, state);\n\n if (state.pendingcb === 0) {\n state.finished = true;\n stream.emit('finish');\n\n if (state.autoDestroy) {\n // In case of duplex streams we need a way to detect\n // if the readable side is ready for autoDestroy as well\n var rState = stream._readableState;\n\n if (!rState || rState.autoDestroy && rState.endEmitted) {\n stream.destroy();\n }\n }\n }\n }\n\n return need;\n}\n\nfunction endWritable(stream, state, cb) {\n state.ending = true;\n finishMaybe(stream, state);\n\n if (cb) {\n if (state.finished) process.nextTick(cb);else stream.once('finish', cb);\n }\n\n state.ended = true;\n stream.writable = false;\n}\n\nfunction onCorkedFinish(corkReq, state, err) {\n var entry = corkReq.entry;\n corkReq.entry = null;\n\n while (entry) {\n var cb = entry.callback;\n state.pendingcb--;\n cb(err);\n entry = entry.next;\n } // reuse the free corkReq.\n\n\n state.corkedRequestsFree.next = corkReq;\n}\n\nObject.defineProperty(Writable.prototype, 'destroyed', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n if (this._writableState === undefined) {\n return false;\n }\n\n return this._writableState.destroyed;\n },\n set: function set(value) {\n // we ignore the value if the stream\n // has not been initialized yet\n if (!this._writableState) {\n return;\n } // backward compatibility, the user is explicitly\n // managing destroyed\n\n\n this._writableState.destroyed = value;\n }\n});\nWritable.prototype.destroy = destroyImpl.destroy;\nWritable.prototype._undestroy = destroyImpl.undestroy;\n\nWritable.prototype._destroy = function (err, cb) {\n cb(err);\n};","module.exports = shift\n\nfunction shift (stream) {\n var rs = stream._readableState\n if (!rs) return null\n return (rs.objectMode || typeof stream._duplexState === 'number') ? stream.read() : stream.read(getStateLength(rs))\n}\n\nfunction getStateLength (state) {\n if (state.buffer.length) {\n // Since node 6.3.0 state.buffer is a BufferList not an array\n if (state.buffer.head) {\n return state.buffer.head.data.length\n }\n\n return state.buffer[0].length\n }\n\n return state.length\n}\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\nvar R = typeof Reflect === 'object' ? Reflect : null\nvar ReflectApply = R && typeof R.apply === 'function'\n ? R.apply\n : function ReflectApply(target, receiver, args) {\n return Function.prototype.apply.call(target, receiver, args);\n }\n\nvar ReflectOwnKeys\nif (R && typeof R.ownKeys === 'function') {\n ReflectOwnKeys = R.ownKeys\n} else if (Object.getOwnPropertySymbols) {\n ReflectOwnKeys = function ReflectOwnKeys(target) {\n return Object.getOwnPropertyNames(target)\n .concat(Object.getOwnPropertySymbols(target));\n };\n} else {\n ReflectOwnKeys = function ReflectOwnKeys(target) {\n return Object.getOwnPropertyNames(target);\n };\n}\n\nfunction ProcessEmitWarning(warning) {\n if (console && console.warn) console.warn(warning);\n}\n\nvar NumberIsNaN = Number.isNaN || function NumberIsNaN(value) {\n return value !== value;\n}\n\nfunction EventEmitter() {\n EventEmitter.init.call(this);\n}\nmodule.exports = EventEmitter;\nmodule.exports.once = once;\n\n// Backwards-compat with node 0.10.x\nEventEmitter.EventEmitter = EventEmitter;\n\nEventEmitter.prototype._events = undefined;\nEventEmitter.prototype._eventsCount = 0;\nEventEmitter.prototype._maxListeners = undefined;\n\n// By default EventEmitters will print a warning if more than 10 listeners are\n// added to it. This is a useful default which helps finding memory leaks.\nvar defaultMaxListeners = 10;\n\nfunction checkListener(listener) {\n if (typeof listener !== 'function') {\n throw new TypeError('The \"listener\" argument must be of type Function. Received type ' + typeof listener);\n }\n}\n\nObject.defineProperty(EventEmitter, 'defaultMaxListeners', {\n enumerable: true,\n get: function() {\n return defaultMaxListeners;\n },\n set: function(arg) {\n if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) {\n throw new RangeError('The value of \"defaultMaxListeners\" is out of range. It must be a non-negative number. Received ' + arg + '.');\n }\n defaultMaxListeners = arg;\n }\n});\n\nEventEmitter.init = function() {\n\n if (this._events === undefined ||\n this._events === Object.getPrototypeOf(this)._events) {\n this._events = Object.create(null);\n this._eventsCount = 0;\n }\n\n this._maxListeners = this._maxListeners || undefined;\n};\n\n// Obviously not all Emitters should be limited to 10. This function allows\n// that to be increased. Set to zero for unlimited.\nEventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {\n if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) {\n throw new RangeError('The value of \"n\" is out of range. It must be a non-negative number. Received ' + n + '.');\n }\n this._maxListeners = n;\n return this;\n};\n\nfunction _getMaxListeners(that) {\n if (that._maxListeners === undefined)\n return EventEmitter.defaultMaxListeners;\n return that._maxListeners;\n}\n\nEventEmitter.prototype.getMaxListeners = function getMaxListeners() {\n return _getMaxListeners(this);\n};\n\nEventEmitter.prototype.emit = function emit(type) {\n var args = [];\n for (var i = 1; i < arguments.length; i++) args.push(arguments[i]);\n var doError = (type === 'error');\n\n var events = this._events;\n if (events !== undefined)\n doError = (doError && events.error === undefined);\n else if (!doError)\n return false;\n\n // If there is no 'error' event listener then throw.\n if (doError) {\n var er;\n if (args.length > 0)\n er = args[0];\n if (er instanceof Error) {\n // Note: The comments on the `throw` lines are intentional, they show\n // up in Node's output if this results in an unhandled exception.\n throw er; // Unhandled 'error' event\n }\n // At least give some kind of context to the user\n var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : ''));\n err.context = er;\n throw err; // Unhandled 'error' event\n }\n\n var handler = events[type];\n\n if (handler === undefined)\n return false;\n\n if (typeof handler === 'function') {\n ReflectApply(handler, this, args);\n } else {\n var len = handler.length;\n var listeners = arrayClone(handler, len);\n for (var i = 0; i < len; ++i)\n ReflectApply(listeners[i], this, args);\n }\n\n return true;\n};\n\nfunction _addListener(target, type, listener, prepend) {\n var m;\n var events;\n var existing;\n\n checkListener(listener);\n\n events = target._events;\n if (events === undefined) {\n events = target._events = Object.create(null);\n target._eventsCount = 0;\n } else {\n // To avoid recursion in the case that type === \"newListener\"! Before\n // adding it to the listeners, first emit \"newListener\".\n if (events.newListener !== undefined) {\n target.emit('newListener', type,\n listener.listener ? listener.listener : listener);\n\n // Re-assign `events` because a newListener handler could have caused the\n // this._events to be assigned to a new object\n events = target._events;\n }\n existing = events[type];\n }\n\n if (existing === undefined) {\n // Optimize the case of one listener. Don't need the extra array object.\n existing = events[type] = listener;\n ++target._eventsCount;\n } else {\n if (typeof existing === 'function') {\n // Adding the second element, need to change to array.\n existing = events[type] =\n prepend ? [listener, existing] : [existing, listener];\n // If we've already got an array, just append.\n } else if (prepend) {\n existing.unshift(listener);\n } else {\n existing.push(listener);\n }\n\n // Check for listener leak\n m = _getMaxListeners(target);\n if (m > 0 && existing.length > m && !existing.warned) {\n existing.warned = true;\n // No error code for this since it is a Warning\n // eslint-disable-next-line no-restricted-syntax\n var w = new Error('Possible EventEmitter memory leak detected. ' +\n existing.length + ' ' + String(type) + ' listeners ' +\n 'added. Use emitter.setMaxListeners() to ' +\n 'increase limit');\n w.name = 'MaxListenersExceededWarning';\n w.emitter = target;\n w.type = type;\n w.count = existing.length;\n ProcessEmitWarning(w);\n }\n }\n\n return target;\n}\n\nEventEmitter.prototype.addListener = function addListener(type, listener) {\n return _addListener(this, type, listener, false);\n};\n\nEventEmitter.prototype.on = EventEmitter.prototype.addListener;\n\nEventEmitter.prototype.prependListener =\n function prependListener(type, listener) {\n return _addListener(this, type, listener, true);\n };\n\nfunction onceWrapper() {\n if (!this.fired) {\n this.target.removeListener(this.type, this.wrapFn);\n this.fired = true;\n if (arguments.length === 0)\n return this.listener.call(this.target);\n return this.listener.apply(this.target, arguments);\n }\n}\n\nfunction _onceWrap(target, type, listener) {\n var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };\n var wrapped = onceWrapper.bind(state);\n wrapped.listener = listener;\n state.wrapFn = wrapped;\n return wrapped;\n}\n\nEventEmitter.prototype.once = function once(type, listener) {\n checkListener(listener);\n this.on(type, _onceWrap(this, type, listener));\n return this;\n};\n\nEventEmitter.prototype.prependOnceListener =\n function prependOnceListener(type, listener) {\n checkListener(listener);\n this.prependListener(type, _onceWrap(this, type, listener));\n return this;\n };\n\n// Emits a 'removeListener' event if and only if the listener was removed.\nEventEmitter.prototype.removeListener =\n function removeListener(type, listener) {\n var list, events, position, i, originalListener;\n\n checkListener(listener);\n\n events = this._events;\n if (events === undefined)\n return this;\n\n list = events[type];\n if (list === undefined)\n return this;\n\n if (list === listener || list.listener === listener) {\n if (--this._eventsCount === 0)\n this._events = Object.create(null);\n else {\n delete events[type];\n if (events.removeListener)\n this.emit('removeListener', type, list.listener || listener);\n }\n } else if (typeof list !== 'function') {\n position = -1;\n\n for (i = list.length - 1; i >= 0; i--) {\n if (list[i] === listener || list[i].listener === listener) {\n originalListener = list[i].listener;\n position = i;\n break;\n }\n }\n\n if (position < 0)\n return this;\n\n if (position === 0)\n list.shift();\n else {\n spliceOne(list, position);\n }\n\n if (list.length === 1)\n events[type] = list[0];\n\n if (events.removeListener !== undefined)\n this.emit('removeListener', type, originalListener || listener);\n }\n\n return this;\n };\n\nEventEmitter.prototype.off = EventEmitter.prototype.removeListener;\n\nEventEmitter.prototype.removeAllListeners =\n function removeAllListeners(type) {\n var listeners, events, i;\n\n events = this._events;\n if (events === undefined)\n return this;\n\n // not listening for removeListener, no need to emit\n if (events.removeListener === undefined) {\n if (arguments.length === 0) {\n this._events = Object.create(null);\n this._eventsCount = 0;\n } else if (events[type] !== undefined) {\n if (--this._eventsCount === 0)\n this._events = Object.create(null);\n else\n delete events[type];\n }\n return this;\n }\n\n // emit removeListener for all listeners on all events\n if (arguments.length === 0) {\n var keys = Object.keys(events);\n var key;\n for (i = 0; i < keys.length; ++i) {\n key = keys[i];\n if (key === 'removeListener') continue;\n this.removeAllListeners(key);\n }\n this.removeAllListeners('removeListener');\n this._events = Object.create(null);\n this._eventsCount = 0;\n return this;\n }\n\n listeners = events[type];\n\n if (typeof listeners === 'function') {\n this.removeListener(type, listeners);\n } else if (listeners !== undefined) {\n // LIFO order\n for (i = listeners.length - 1; i >= 0; i--) {\n this.removeListener(type, listeners[i]);\n }\n }\n\n return this;\n };\n\nfunction _listeners(target, type, unwrap) {\n var events = target._events;\n\n if (events === undefined)\n return [];\n\n var evlistener = events[type];\n if (evlistener === undefined)\n return [];\n\n if (typeof evlistener === 'function')\n return unwrap ? [evlistener.listener || evlistener] : [evlistener];\n\n return unwrap ?\n unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);\n}\n\nEventEmitter.prototype.listeners = function listeners(type) {\n return _listeners(this, type, true);\n};\n\nEventEmitter.prototype.rawListeners = function rawListeners(type) {\n return _listeners(this, type, false);\n};\n\nEventEmitter.listenerCount = function(emitter, type) {\n if (typeof emitter.listenerCount === 'function') {\n return emitter.listenerCount(type);\n } else {\n return listenerCount.call(emitter, type);\n }\n};\n\nEventEmitter.prototype.listenerCount = listenerCount;\nfunction listenerCount(type) {\n var events = this._events;\n\n if (events !== undefined) {\n var evlistener = events[type];\n\n if (typeof evlistener === 'function') {\n return 1;\n } else if (evlistener !== undefined) {\n return evlistener.length;\n }\n }\n\n return 0;\n}\n\nEventEmitter.prototype.eventNames = function eventNames() {\n return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : [];\n};\n\nfunction arrayClone(arr, n) {\n var copy = new Array(n);\n for (var i = 0; i < n; ++i)\n copy[i] = arr[i];\n return copy;\n}\n\nfunction spliceOne(list, index) {\n for (; index + 1 < list.length; index++)\n list[index] = list[index + 1];\n list.pop();\n}\n\nfunction unwrapListeners(arr) {\n var ret = new Array(arr.length);\n for (var i = 0; i < ret.length; ++i) {\n ret[i] = arr[i].listener || arr[i];\n }\n return ret;\n}\n\nfunction once(emitter, name) {\n return new Promise(function (resolve, reject) {\n function errorListener(err) {\n emitter.removeListener(name, resolver);\n reject(err);\n }\n\n function resolver() {\n if (typeof emitter.removeListener === 'function') {\n emitter.removeListener('error', errorListener);\n }\n resolve([].slice.call(arguments));\n };\n\n eventTargetAgnosticAddListener(emitter, name, resolver, { once: true });\n if (name !== 'error') {\n addErrorHandlerIfEventEmitter(emitter, errorListener, { once: true });\n }\n });\n}\n\nfunction addErrorHandlerIfEventEmitter(emitter, handler, flags) {\n if (typeof emitter.on === 'function') {\n eventTargetAgnosticAddListener(emitter, 'error', handler, flags);\n }\n}\n\nfunction eventTargetAgnosticAddListener(emitter, name, listener, flags) {\n if (typeof emitter.on === 'function') {\n if (flags.once) {\n emitter.once(name, listener);\n } else {\n emitter.on(name, listener);\n }\n } else if (typeof emitter.addEventListener === 'function') {\n // EventTarget does not have `error` event semantics like Node\n // EventEmitters, we do not listen for `error` events here.\n emitter.addEventListener(name, function wrapListener(arg) {\n // IE does not have builtin `{ once: true }` support so we\n // have to do it manually.\n if (flags.once) {\n emitter.removeEventListener(name, wrapListener);\n }\n listener(arg);\n });\n } else {\n throw new TypeError('The \"emitter\" argument must be of type EventEmitter. Received type ' + typeof emitter);\n }\n}\n","'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar codes = {};\n\nfunction createErrorType(code, message, Base) {\n if (!Base) {\n Base = Error;\n }\n\n function getMessage(arg1, arg2, arg3) {\n if (typeof message === 'string') {\n return message;\n } else {\n return message(arg1, arg2, arg3);\n }\n }\n\n var NodeError =\n /*#__PURE__*/\n function (_Base) {\n _inheritsLoose(NodeError, _Base);\n\n function NodeError(arg1, arg2, arg3) {\n return _Base.call(this, getMessage(arg1, arg2, arg3)) || this;\n }\n\n return NodeError;\n }(Base);\n\n NodeError.prototype.name = Base.name;\n NodeError.prototype.code = code;\n codes[code] = NodeError;\n} // https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js\n\n\nfunction oneOf(expected, thing) {\n if (Array.isArray(expected)) {\n var len = expected.length;\n expected = expected.map(function (i) {\n return String(i);\n });\n\n if (len > 2) {\n return \"one of \".concat(thing, \" \").concat(expected.slice(0, len - 1).join(', '), \", or \") + expected[len - 1];\n } else if (len === 2) {\n return \"one of \".concat(thing, \" \").concat(expected[0], \" or \").concat(expected[1]);\n } else {\n return \"of \".concat(thing, \" \").concat(expected[0]);\n }\n } else {\n return \"of \".concat(thing, \" \").concat(String(expected));\n }\n} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith\n\n\nfunction startsWith(str, search, pos) {\n return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;\n} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith\n\n\nfunction endsWith(str, search, this_len) {\n if (this_len === undefined || this_len > str.length) {\n this_len = str.length;\n }\n\n return str.substring(this_len - search.length, this_len) === search;\n} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes\n\n\nfunction includes(str, search, start) {\n if (typeof start !== 'number') {\n start = 0;\n }\n\n if (start + search.length > str.length) {\n return false;\n } else {\n return str.indexOf(search, start) !== -1;\n }\n}\n\ncreateErrorType('ERR_INVALID_OPT_VALUE', function (name, value) {\n return 'The value \"' + value + '\" is invalid for option \"' + name + '\"';\n}, TypeError);\ncreateErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) {\n // determiner: 'must be' or 'must not be'\n var determiner;\n\n if (typeof expected === 'string' && startsWith(expected, 'not ')) {\n determiner = 'must not be';\n expected = expected.replace(/^not /, '');\n } else {\n determiner = 'must be';\n }\n\n var msg;\n\n if (endsWith(name, ' argument')) {\n // For cases like 'first argument'\n msg = \"The \".concat(name, \" \").concat(determiner, \" \").concat(oneOf(expected, 'type'));\n } else {\n var type = includes(name, '.') ? 'property' : 'argument';\n msg = \"The \\\"\".concat(name, \"\\\" \").concat(type, \" \").concat(determiner, \" \").concat(oneOf(expected, 'type'));\n }\n\n msg += \". Received type \".concat(typeof actual);\n return msg;\n}, TypeError);\ncreateErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF');\ncreateErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) {\n return 'The ' + name + ' method is not implemented';\n});\ncreateErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close');\ncreateErrorType('ERR_STREAM_DESTROYED', function (name) {\n return 'Cannot call ' + name + ' after a stream was destroyed';\n});\ncreateErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');\ncreateErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable');\ncreateErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end');\ncreateErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError);\ncreateErrorType('ERR_UNKNOWN_ENCODING', function (arg) {\n return 'Unknown encoding: ' + arg;\n}, TypeError);\ncreateErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event');\nmodule.exports.codes = codes;\n","'use strict'\n\nconst { Buffer } = require('buffer')\nconst WS = require('ws')\nconst debug = require('debug')('mqttjs:ws')\nconst duplexify = require('duplexify')\nconst Transform = require('readable-stream').Transform\n\nconst WSS_OPTIONS = [\n 'rejectUnauthorized',\n 'ca',\n 'cert',\n 'key',\n 'pfx',\n 'passphrase'\n]\n// eslint-disable-next-line camelcase\nconst IS_BROWSER = (typeof process !== 'undefined' && process.title === 'browser') || typeof __webpack_require__ === 'function'\nfunction buildUrl (opts, client) {\n let url = opts.protocol + '://' + opts.hostname + ':' + opts.port + opts.path\n if (typeof (opts.transformWsUrl) === 'function') {\n url = opts.transformWsUrl(url, opts, client)\n }\n return url\n}\n\nfunction setDefaultOpts (opts) {\n const options = opts\n if (!opts.hostname) {\n options.hostname = 'localhost'\n }\n if (!opts.port) {\n if (opts.protocol === 'wss') {\n options.port = 443\n } else {\n options.port = 80\n }\n }\n if (!opts.path) {\n options.path = '/'\n }\n\n if (!opts.wsOptions) {\n options.wsOptions = {}\n }\n if (!IS_BROWSER && opts.protocol === 'wss') {\n // Add cert/key/ca etc options\n WSS_OPTIONS.forEach(function (prop) {\n if (Object.prototype.hasOwnProperty.call(opts, prop) && !Object.prototype.hasOwnProperty.call(opts.wsOptions, prop)) {\n options.wsOptions[prop] = opts[prop]\n }\n })\n }\n\n return options\n}\n\nfunction setDefaultBrowserOpts (opts) {\n const options = setDefaultOpts(opts)\n\n if (!options.hostname) {\n options.hostname = options.host\n }\n\n if (!options.hostname) {\n // Throwing an error in a Web Worker if no `hostname` is given, because we\n // can not determine the `hostname` automatically. If connecting to\n // localhost, please supply the `hostname` as an argument.\n if (typeof (document) === 'undefined') {\n throw new Error('Could not determine host. Specify host manually.')\n }\n const parsed = new URL(document.URL)\n options.hostname = parsed.hostname\n\n if (!options.port) {\n options.port = parsed.port\n }\n }\n\n // objectMode should be defined for logic\n if (options.objectMode === undefined) {\n options.objectMode = !(options.binary === true || options.binary === undefined)\n }\n\n return options\n}\n\nfunction createWebSocket (client, url, opts) {\n debug('createWebSocket')\n debug('protocol: ' + opts.protocolId + ' ' + opts.protocolVersion)\n const websocketSubProtocol =\n (opts.protocolId === 'MQIsdp') && (opts.protocolVersion === 3)\n ? 'mqttv3.1'\n : 'mqtt'\n\n debug('creating new Websocket for url: ' + url + ' and protocol: ' + websocketSubProtocol)\n const socket = new WS(url, [websocketSubProtocol], opts.wsOptions)\n return socket\n}\n\nfunction createBrowserWebSocket (client, opts) {\n const websocketSubProtocol =\n (opts.protocolId === 'MQIsdp') && (opts.protocolVersion === 3)\n ? 'mqttv3.1'\n : 'mqtt'\n\n const url = buildUrl(opts, client)\n /* global WebSocket */\n const socket = new WebSocket(url, [websocketSubProtocol])\n socket.binaryType = 'arraybuffer'\n return socket\n}\n\nfunction streamBuilder (client, opts) {\n debug('streamBuilder')\n const options = setDefaultOpts(opts)\n const url = buildUrl(options, client)\n const socket = createWebSocket(client, url, options)\n const webSocketStream = WS.createWebSocketStream(socket, options.wsOptions)\n webSocketStream.url = url\n socket.on('close', () => { webSocketStream.destroy() })\n return webSocketStream\n}\n\nfunction browserStreamBuilder (client, opts) {\n debug('browserStreamBuilder')\n let stream\n const options = setDefaultBrowserOpts(opts)\n // sets the maximum socket buffer size before throttling\n const bufferSize = options.browserBufferSize || 1024 * 512\n\n const bufferTimeout = opts.browserBufferTimeout || 1000\n\n const coerceToBuffer = !opts.objectMode\n\n const socket = createBrowserWebSocket(client, opts)\n\n const proxy = buildProxy(opts, socketWriteBrowser, socketEndBrowser)\n\n if (!opts.objectMode) {\n proxy._writev = writev\n }\n proxy.on('close', () => { socket.close() })\n\n const eventListenerSupport = (typeof socket.addEventListener !== 'undefined')\n\n // was already open when passed in\n if (socket.readyState === socket.OPEN) {\n stream = proxy\n } else {\n stream = stream = duplexify(undefined, undefined, opts)\n if (!opts.objectMode) {\n stream._writev = writev\n }\n\n if (eventListenerSupport) {\n socket.addEventListener('open', onopen)\n } else {\n socket.onopen = onopen\n }\n }\n\n stream.socket = socket\n\n if (eventListenerSupport) {\n socket.addEventListener('close', onclose)\n socket.addEventListener('error', onerror)\n socket.addEventListener('message', onmessage)\n } else {\n socket.onclose = onclose\n socket.onerror = onerror\n socket.onmessage = onmessage\n }\n\n // methods for browserStreamBuilder\n\n function buildProxy (options, socketWrite, socketEnd) {\n const proxy = new Transform({\n objectModeMode: options.objectMode\n })\n\n proxy._write = socketWrite\n proxy._flush = socketEnd\n\n return proxy\n }\n\n function onopen () {\n stream.setReadable(proxy)\n stream.setWritable(proxy)\n stream.emit('connect')\n }\n\n function onclose () {\n stream.end()\n stream.destroy()\n }\n\n function onerror (err) {\n stream.destroy(err)\n }\n\n function onmessage (event) {\n let data = event.data\n if (data instanceof ArrayBuffer) data = Buffer.from(data)\n else data = Buffer.from(data, 'utf8')\n proxy.push(data)\n }\n\n // this is to be enabled only if objectMode is false\n function writev (chunks, cb) {\n const buffers = new Array(chunks.length)\n for (let i = 0; i < chunks.length; i++) {\n if (typeof chunks[i].chunk === 'string') {\n buffers[i] = Buffer.from(chunks[i], 'utf8')\n } else {\n buffers[i] = chunks[i].chunk\n }\n }\n\n this._write(Buffer.concat(buffers), 'binary', cb)\n }\n\n function socketWriteBrowser (chunk, enc, next) {\n if (socket.bufferedAmount > bufferSize) {\n // throttle data until buffered amount is reduced.\n setTimeout(socketWriteBrowser, bufferTimeout, chunk, enc, next)\n }\n\n if (coerceToBuffer && typeof chunk === 'string') {\n chunk = Buffer.from(chunk, 'utf8')\n }\n\n try {\n socket.send(chunk)\n } catch (err) {\n return next(err)\n }\n\n next()\n }\n\n function socketEndBrowser (done) {\n socket.close()\n done()\n }\n\n // end methods for browserStreamBuilder\n\n return stream\n}\n\nif (IS_BROWSER) {\n module.exports = browserStreamBuilder\n} else {\n module.exports = streamBuilder\n}\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n// a transform stream is a readable/writable stream where you do\n// something with the data. Sometimes it's called a \"filter\",\n// but that's not a great name for it, since that implies a thing where\n// some bits pass through, and others are simply ignored. (That would\n// be a valid example of a transform, of course.)\n//\n// While the output is causally related to the input, it's not a\n// necessarily symmetric or synchronous transformation. For example,\n// a zlib stream might take multiple plain-text writes(), and then\n// emit a single compressed chunk some time in the future.\n//\n// Here's how this works:\n//\n// The Transform stream has all the aspects of the readable and writable\n// stream classes. When you write(chunk), that calls _write(chunk,cb)\n// internally, and returns false if there's a lot of pending writes\n// buffered up. When you call read(), that calls _read(n) until\n// there's enough pending readable data buffered up.\n//\n// In a transform stream, the written data is placed in a buffer. When\n// _read(n) is called, it transforms the queued up data, calling the\n// buffered _write cb's as it consumes chunks. If consuming a single\n// written chunk would result in multiple output chunks, then the first\n// outputted bit calls the readcb, and subsequent chunks just go into\n// the read buffer, and will cause it to emit 'readable' if necessary.\n//\n// This way, back-pressure is actually determined by the reading side,\n// since _read has to be called to start processing a new chunk. However,\n// a pathological inflate type of transform can cause excessive buffering\n// here. For example, imagine a stream where every byte of input is\n// interpreted as an integer from 0-255, and then results in that many\n// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in\n// 1kb of data being output. In this case, you could write a very small\n// amount of input, and end up with a very large amount of output. In\n// such a pathological inflating mechanism, there'd be no way to tell\n// the system to stop doing the transform. A single 4MB write could\n// cause the system to run out of memory.\n//\n// However, even in such a pathological case, only a single written chunk\n// would be consumed, and then the rest would wait (un-transformed) until\n// the results of the previous transformed chunk were consumed.\n'use strict';\n\nmodule.exports = Transform;\n\nvar _require$codes = require('../errors').codes,\n ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,\n ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,\n ERR_TRANSFORM_ALREADY_TRANSFORMING = _require$codes.ERR_TRANSFORM_ALREADY_TRANSFORMING,\n ERR_TRANSFORM_WITH_LENGTH_0 = _require$codes.ERR_TRANSFORM_WITH_LENGTH_0;\n\nvar Duplex = require('./_stream_duplex');\n\nrequire('inherits')(Transform, Duplex);\n\nfunction afterTransform(er, data) {\n var ts = this._transformState;\n ts.transforming = false;\n var cb = ts.writecb;\n\n if (cb === null) {\n return this.emit('error', new ERR_MULTIPLE_CALLBACK());\n }\n\n ts.writechunk = null;\n ts.writecb = null;\n if (data != null) // single equals check for both `null` and `undefined`\n this.push(data);\n cb(er);\n var rs = this._readableState;\n rs.reading = false;\n\n if (rs.needReadable || rs.length < rs.highWaterMark) {\n this._read(rs.highWaterMark);\n }\n}\n\nfunction Transform(options) {\n if (!(this instanceof Transform)) return new Transform(options);\n Duplex.call(this, options);\n this._transformState = {\n afterTransform: afterTransform.bind(this),\n needTransform: false,\n transforming: false,\n writecb: null,\n writechunk: null,\n writeencoding: null\n }; // start out asking for a readable event once data is transformed.\n\n this._readableState.needReadable = true; // we have implemented the _read method, and done the other things\n // that Readable wants before the first _read call, so unset the\n // sync guard flag.\n\n this._readableState.sync = false;\n\n if (options) {\n if (typeof options.transform === 'function') this._transform = options.transform;\n if (typeof options.flush === 'function') this._flush = options.flush;\n } // When the writable side finishes, then flush out anything remaining.\n\n\n this.on('prefinish', prefinish);\n}\n\nfunction prefinish() {\n var _this = this;\n\n if (typeof this._flush === 'function' && !this._readableState.destroyed) {\n this._flush(function (er, data) {\n done(_this, er, data);\n });\n } else {\n done(this, null, null);\n }\n}\n\nTransform.prototype.push = function (chunk, encoding) {\n this._transformState.needTransform = false;\n return Duplex.prototype.push.call(this, chunk, encoding);\n}; // This is the part where you do stuff!\n// override this function in implementation classes.\n// 'chunk' is an input chunk.\n//\n// Call `push(newChunk)` to pass along transformed output\n// to the readable side. You may call 'push' zero or more times.\n//\n// Call `cb(err)` when you are done with this chunk. If you pass\n// an error, then that'll put the hurt on the whole operation. If you\n// never call cb(), then you'll never get another chunk.\n\n\nTransform.prototype._transform = function (chunk, encoding, cb) {\n cb(new ERR_METHOD_NOT_IMPLEMENTED('_transform()'));\n};\n\nTransform.prototype._write = function (chunk, encoding, cb) {\n var ts = this._transformState;\n ts.writecb = cb;\n ts.writechunk = chunk;\n ts.writeencoding = encoding;\n\n if (!ts.transforming) {\n var rs = this._readableState;\n if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);\n }\n}; // Doesn't matter what the args are here.\n// _transform does all the work.\n// That we got here means that the readable side wants more data.\n\n\nTransform.prototype._read = function (n) {\n var ts = this._transformState;\n\n if (ts.writechunk !== null && !ts.transforming) {\n ts.transforming = true;\n\n this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);\n } else {\n // mark that we need a transform, so that any data that comes in\n // will get processed, now that we've asked for it.\n ts.needTransform = true;\n }\n};\n\nTransform.prototype._destroy = function (err, cb) {\n Duplex.prototype._destroy.call(this, err, function (err2) {\n cb(err2);\n });\n};\n\nfunction done(stream, er, data) {\n if (er) return stream.emit('error', er);\n if (data != null) // single equals check for both `null` and `undefined`\n stream.push(data); // TODO(BridgeAR): Write a test for these two error cases\n // if there's nothing in the write buffer, then that means\n // that nothing more will ever be provided\n\n if (stream._writableState.length) throw new ERR_TRANSFORM_WITH_LENGTH_0();\n if (stream._transformState.transforming) throw new ERR_TRANSFORM_ALREADY_TRANSFORMING();\n return stream.push(null);\n}","'use strict'\nconst tls = require('tls')\nconst net = require('net')\nconst debug = require('debug')('mqttjs:tls')\n\nfunction buildBuilder (mqttClient, opts) {\n opts.port = opts.port || 8883\n opts.host = opts.hostname || opts.host || 'localhost'\n\n if (net.isIP(opts.host) === 0) {\n opts.servername = opts.host\n }\n\n opts.rejectUnauthorized = opts.rejectUnauthorized !== false\n\n delete opts.path\n\n debug('port %d host %s rejectUnauthorized %b', opts.port, opts.host, opts.rejectUnauthorized)\n\n const connection = tls.connect(opts)\n /* eslint no-use-before-define: [2, \"nofunc\"] */\n connection.on('secureConnect', function () {\n if (opts.rejectUnauthorized && !connection.authorized) {\n connection.emit('error', new Error('TLS not authorized'))\n } else {\n connection.removeListener('error', handleTLSerrors)\n }\n })\n\n function handleTLSerrors (err) {\n // How can I get verify this error is a tls error?\n if (opts.rejectUnauthorized) {\n mqttClient.emit('error', err)\n }\n\n // close this connection to match the behaviour of net\n // otherwise all we get is an error from the connection\n // and close event doesn't fire. This is a work around\n // to enable the reconnect code to work the same as with\n // net.createConnection\n connection.end()\n }\n\n connection.on('error', handleTLSerrors)\n return connection\n}\n\nmodule.exports = buildBuilder\n"],"sourceRoot":""}