(self["webpackChunkset_vue"]=self["webpackChunkset_vue"]||[]).push([[149],{5149:function(t,e,r){r(4114),r(6573),r(8100),r(7936),r(7467),r(4732),r(9577),r(9848),function(e){t.exports=e()}((function(){var t;return function(){function t(e,r,n){function i(s,a){if(!r[s]){if(!e[s]){var u=void 0;if(!a&&u)return require(s,!0);if(o)return o(s,!0);var c=new Error("Cannot find module '"+s+"'");throw c.code="MODULE_NOT_FOUND",c}var l=r[s]={exports:{}};e[s][0].call(l.exports,(function(t){var r=e[s][1][t];return i(r||t)}),l,l.exports,t,e,r,n)}return r[s].exports}for(var o=void 0,s=0;s<n.length;s++)i(n[s]);return i}return t}()({1:[function(t,e,n){(function(r,n){"use strict";var i=t("events"),o=t("./store"),s=t("end-of-stream"),a=t("mqtt-packet"),u=t("readable-stream").Writable,c=t("inherits"),l=t("reinterval"),f=t("./validations"),h=t("xtend"),p=n.setImmediate||function(t){r.nextTick(t)},d={keepalive:60,reschedulePings:!0,protocolId:"MQTT",protocolVersion:4,reconnectPeriod:1e3,connectTimeout:3e4,clean:!0,resubscribe:!0};function g(){return"mqttjs_"+Math.random().toString(16).substr(2,8)}function y(t,e,r){t.emit("packetsend",e);var n=a.writeToStream(e,t.stream);!n&&r?t.stream.once("drain",r):r&&r()}function b(t){t&&Object.keys(t).forEach((function(e){"function"===typeof t[e]&&(t[e](new Error("Connection closed")),delete t[e])}))}function _(t,e,r){t.outgoingStore.put(e,(function(n){if(n)return r&&r(n);y(t,e,r)}))}function m(){}function v(t,e){var r,n=this;if(!(this instanceof v))return new v(t,e);for(r in this.options=e||{},d)"undefined"===typeof this.options[r]?this.options[r]=d[r]:this.options[r]=e[r];this.options.clientId="string"===typeof this.options.clientId?this.options.clientId:g(),this.streamBuilder=t,this.outgoingStore=this.options.outgoingStore||new o,this.incomingStore=this.options.incomingStore||new o,this.queueQoSZero=void 0===this.options.queueQoSZero||this.options.queueQoSZero,this._resubscribeTopics={},this.messageIdToTopic={},this.pingTimer=null,this.connected=!1,this.disconnecting=!1,this.queue=[],this.connackTimer=null,this.reconnectTimer=null,this.nextId=Math.max(1,Math.floor(65535*Math.random())),this.outgoing={},this.on("connect",(function(){if(!this.disconnected){this.connected=!0;var t=this.outgoingStore.createStream();this.once("close",e),t.on("end",(function(){n.removeListener("close",e)})),t.on("error",(function(t){n.removeListener("close",e),n.emit("error",t)})),r()}function e(){t.destroy(),t=null}function r(){if(t){var e,i=t.read(1);i?n.disconnecting||n.reconnectTimer?t.destroy&&t.destroy():(e=n.outgoing[i.messageId],n.outgoing[i.messageId]=function(t,n){e&&e(t,n),r()},n._sendPacket(i)):t.once("readable",r)}}})),this.on("close",(function(){this.connected=!1,clearTimeout(this.connackTimer)})),this.on("connect",this._setupPingTimer),this.on("connect",(function(){var t=this.queue;function e(){var r=t.shift(),i=null;r&&(i=r.packet,n._sendPacket(i,(function(t){r.cb&&r.cb(t),e()})))}e()}));var s=!0;this.on("connect",(function(){!s&&this.options.clean&&Object.keys(this._resubscribeTopics).length>0&&(this.options.resubscribe?(this._resubscribeTopics.resubscribe=!0,this.subscribe(this._resubscribeTopics)):this._resubscribeTopics={}),s=!1})),this.on("close",(function(){null!==n.pingTimer&&(n.pingTimer.clear(),n.pingTimer=null)})),this.on("close",this._setupReconnect),i.EventEmitter.call(this),this._setupStream()}c(v,i.EventEmitter),v.prototype._setupStream=function(){var t,e=this,n=new u,i=a.parser(this.options),o=null,c=[];function l(){r.nextTick(f)}function f(){var t=c.shift(),r=o;t?e._handlePacket(t,l):(o=null,r())}this._clearReconnect(),this.stream=this.streamBuilder(this),i.on("packet",(function(t){c.push(t)})),n._write=function(t,e,r){o=r,i.parse(t),f()},this.stream.pipe(n),this.stream.on("error",m),s(this.stream,this.emit.bind(this,"close")),t=Object.create(this.options),t.cmd="connect",y(this,t),i.on("error",this.emit.bind(this,"error")),this.stream.setMaxListeners(1e3),clearTimeout(this.connackTimer),this.connackTimer=setTimeout((function(){e._cleanUp(!0)}),this.options.connectTimeout)},v.prototype._handlePacket=function(t,e){switch(this.emit("packetreceive",t),t.cmd){case"publish":this._handlePublish(t,e);break;case"puback":case"pubrec":case"pubcomp":case"suback":case"unsuback":this._handleAck(t),e();break;case"pubrel":this._handlePubrel(t,e);break;case"connack":this._handleConnack(t),e();break;case"pingresp":this._handlePingresp(t),e();break;default:break}},v.prototype._checkDisconnecting=function(t){return this.disconnecting&&(t?t(new Error("client disconnecting")):this.emit("error",new Error("client disconnecting"))),this.disconnecting},v.prototype.publish=function(t,e,r,n){var i;"function"===typeof r&&(n=r,r=null);var o={qos:0,retain:!1,dup:!1};if(r=h(o,r),this._checkDisconnecting(n))return this;switch(i={cmd:"publish",topic:t,payload:e,qos:r.qos,retain:r.retain,messageId:this._nextId(),dup:r.dup},r.qos){case 1:case 2:this.outgoing[i.messageId]=n||m,this._sendPacket(i);break;default:this._sendPacket(i,n);break}return this},v.prototype.subscribe=function(){var t,e,r=Array.prototype.slice.call(arguments),n=[],i=r.shift(),o=i.resubscribe,s=r.pop()||m,a=r.pop(),u=this;if(delete i.resubscribe,"string"===typeof i&&(i=[i]),"function"!==typeof s&&(a=s,s=m),e=f.validateTopics(i),null!==e)return p(s,new Error("Invalid topic "+e)),this;if(this._checkDisconnecting(s))return this;var c={qos:0};if(a=h(c,a),Array.isArray(i)?i.forEach((function(t){(u._resubscribeTopics[t]<a.qos||!u._resubscribeTopics.hasOwnProperty(t)||o)&&n.push({topic:t,qos:a.qos})})):Object.keys(i).forEach((function(t){(u._resubscribeTopics[t]<i[t]||!u._resubscribeTopics.hasOwnProperty(t)||o)&&n.push({topic:t,qos:i[t]})})),t={cmd:"subscribe",subscriptions:n,qos:1,retain:!1,dup:!1,messageId:this._nextId()},n.length){if(this.options.resubscribe){var l=[];n.forEach((function(t){u.options.reconnectPeriod>0&&(u._resubscribeTopics[t.topic]=t.qos,l.push(t.topic))})),u.messageIdToTopic[t.messageId]=l}return this.outgoing[t.messageId]=function(t,e){if(!t)for(var r=e.granted,i=0;i<r.length;i+=1)n[i].qos=r[i];s(t,n)},this._sendPacket(t),this}s(null,[])},v.prototype.unsubscribe=function(t,e){var r={cmd:"unsubscribe",qos:1,messageId:this._nextId()},n=this;return e=e||m,this._checkDisconnecting(e)||("string"===typeof t?r.unsubscriptions=[t]:"object"===typeof t&&t.length&&(r.unsubscriptions=t),this.options.resubscribe&&r.unsubscriptions.forEach((function(t){delete n._resubscribeTopics[t]})),this.outgoing[r.messageId]=e,this._sendPacket(r)),this},v.prototype.end=function(t,e){var r=this;function n(){r.disconnected=!0,r.incomingStore.close((function(){r.outgoingStore.close((function(){e&&e.apply(null,arguments),r.emit("end")}))})),r._deferredReconnect&&r._deferredReconnect()}function i(){r._cleanUp(t,p.bind(null,n))}return"function"===typeof t&&(e=t,t=!1),this.disconnecting||(this._clearReconnect(),this.disconnecting=!0,!t&&Object.keys(this.outgoing).length>0?this.once("outgoingEmpty",setTimeout.bind(null,i,10)):i()),this},v.prototype.removeOutgoingMessage=function(t){var e=this.outgoing[t];return delete this.outgoing[t],this.outgoingStore.del({messageId:t},(function(){e(new Error("Message removed"))})),this},v.prototype.reconnect=function(t){var e=this,r=function(){t?(e.options.incomingStore=t.incomingStore,e.options.outgoingStore=t.outgoingStore):(e.options.incomingStore=null,e.options.outgoingStore=null),e.incomingStore=e.options.incomingStore||new o,e.outgoingStore=e.options.outgoingStore||new o,e.disconnecting=!1,e.disconnected=!1,e._deferredReconnect=null,e._reconnect()};return this.disconnecting&&!this.disconnected?this._deferredReconnect=r:r(),this},v.prototype._reconnect=function(){this.emit("reconnect"),this._setupStream()},v.prototype._setupReconnect=function(){var t=this;!t.disconnecting&&!t.reconnectTimer&&t.options.reconnectPeriod>0&&(this.reconnecting||(this.emit("offline"),this.reconnecting=!0),t.reconnectTimer=setInterval((function(){t._reconnect()}),t.options.reconnectPeriod))},v.prototype._clearReconnect=function(){this.reconnectTimer&&(clearInterval(this.reconnectTimer),this.reconnectTimer=null)},v.prototype._cleanUp=function(t,e){e&&this.stream.on("close",e),t?(0===this.options.reconnectPeriod&&this.options.clean&&b(this.outgoing),this.stream.destroy()):this._sendPacket({cmd:"disconnect"},p.bind(null,this.stream.end.bind(this.stream))),this.disconnecting||(this._clearReconnect(),this._setupReconnect()),null!==this.pingTimer&&(this.pingTimer.clear(),this.pingTimer=null),e&&!this.connected&&(this.stream.removeListener("close",e),e())},v.prototype._sendPacket=function(t,e){if(this.connected){switch(this._shiftPingInterval(),t.cmd){case"publish":break;case"pubrel":return void _(this,t,e);default:return void y(this,t,e)}switch(t.qos){case 2:case 1:_(this,t,e);break;case 0:default:y(this,t,e);break}}else 0===(t.qos||0)&&this.queueQoSZero||"publish"!==t.cmd?this.queue.push({packet:t,cb:e}):t.qos>0?(e=this.outgoing[t.messageId],this.outgoingStore.put(t,(function(t){if(t)return e&&e(t)}))):e&&e(new Error("No connection to broker"))},v.prototype._setupPingTimer=function(){var t=this;!this.pingTimer&&this.options.keepalive&&(this.pingResp=!0,this.pingTimer=l((function(){t._checkPing()}),1e3*this.options.keepalive))},v.prototype._shiftPingInterval=function(){this.pingTimer&&this.options.keepalive&&this.options.reschedulePings&&this.pingTimer.reschedule(1e3*this.options.keepalive)},v.prototype._checkPing=function(){this.pingResp?(this.pingResp=!1,this._sendPacket({cmd:"pingreq"})):this._cleanUp(!0)},v.prototype._handlePingresp=function(){this.pingResp=!0},v.prototype._handleConnack=function(t){var e=t.returnCode,r=["","Unacceptable protocol version","Identifier rejected","Server unavailable","Bad username or password","Not authorized"];if(clearTimeout(this.connackTimer),0===e)this.reconnecting=!1,this.emit("connect",t);else if(e>0){var n=new Error("Connection refused: "+r[e]);n.code=e,this.emit("error",n)}},v.prototype._handlePublish=function(t,e){e="undefined"!==typeof e?e:m;var r=t.topic.toString(),n=t.payload,i=t.qos,o=t.messageId,s=this;switch(i){case 2:this.incomingStore.put(t,(function(t){if(t)return e(t);s._sendPacket({cmd:"pubrec",messageId:o},e)}));break;case 1:this.emit("message",r,n,t),this.handleMessage(t,(function(t){if(t)return e(t);s._sendPacket({cmd:"puback",messageId:o},e)}));break;case 0:this.emit("message",r,n,t),this.handleMessage(t,e);break;default:break}},v.prototype.handleMessage=function(t,e){e()},v.prototype._handleAck=function(t){var e=t.messageId,r=t.cmd,n=null,i=this.outgoing[e],o=this;if(i){switch(r){case"pubcomp":case"puback":delete this.outgoing[e],this.outgoingStore.del(t,i);break;case"pubrec":n={cmd:"pubrel",qos:2,messageId:e},this._sendPacket(n);break;case"suback":if(delete this.outgoing[e],1===t.granted.length&&0!==(128&t.granted[0])){var s=this.messageIdToTopic[e];s&&s.forEach((function(t){delete o._resubscribeTopics[t]}))}i(null,t);break;case"unsuback":delete this.outgoing[e],i(null);break;default:o.emit("error",new Error("unrecognized packet type"))}this.disconnecting&&0===Object.keys(this.outgoing).length&&this.emit("outgoingEmpty")}},v.prototype._handlePubrel=function(t,e){e="undefined"!==typeof e?e:m;var r=t.messageId,n=this,i={cmd:"pubcomp",messageId:r};n.incomingStore.get(t,(function(r,o){r||"pubrel"===o.cmd?n._sendPacket(i,e):(n.emit("message",o.topic,o.payload,o),n.incomingStore.put(t,(function(t){if(t)return e(t);n.handleMessage(o,(function(t){if(t)return e(t);n._sendPacket(i,e)}))})))}))},v.prototype._nextId=function(){var t=this.nextId++;return 65536===this.nextId&&(this.nextId=1),t},v.prototype.getLastMessageId=function(){return 1===this.nextId?65535:this.nextId-1},e.exports=v}).call(this,t("_process"),"undefined"!==typeof r.g?r.g:"undefined"!==typeof self?self:"undefined"!==typeof window?window:{})},{"./store":6,"./validations":7,_process:92,"end-of-stream":17,events:78,inherits:80,"mqtt-packet":85,"readable-stream":106,reinterval:107,xtend:120}],2:[function(t,e,r){"use strict";var n=t("net");function i(t,e){var r,i;return e.port=e.port||1883,e.hostname=e.hostname||e.host||"localhost",r=e.port,i=e.hostname,n.createConnection(r,i)}e.exports=i},{net:11}],3:[function(t,e,r){"use strict";var n=t("tls");function i(t,e){var r;function i(n){e.rejectUnauthorized&&t.emit("error",n),r.end()}return e.port=e.port||8883,e.host=e.hostname||e.host||"localhost",e.rejectUnauthorized=!1!==e.rejectUnauthorized,delete e.path,r=n.connect(e),r.on("secureConnect",(function(){e.rejectUnauthorized&&!r.authorized?r.emit("error",new Error("TLS not authorized")):r.removeListener("error",i)})),r.on("error",i),r}e.exports=i},{tls:11}],4:[function(t,e,r){(function(r){"use strict";var n=t("websocket-stream"),i=t("url"),o=["rejectUnauthorized","ca","cert","key","pfx","passphrase"],s="browser"===r.title;function a(t,e){var r=t.protocol+"://"+t.hostname+":"+t.port+t.path;return"function"===typeof t.transformWsUrl&&(r=t.transformWsUrl(r,t,e)),r}function u(t){t.hostname||(t.hostname="localhost"),t.port||("wss"===t.protocol?t.port=443:t.port=80),t.path||(t.path="/"),t.wsOptions||(t.wsOptions={}),s||"wss"!==t.protocol||o.forEach((function(e){t.hasOwnProperty(e)&&!t.wsOptions.hasOwnProperty(e)&&(t.wsOptions[e]=t[e])}))}function c(t,e){var r="MQIsdp"===e.protocolId&&3===e.protocolVersion?"mqttv3.1":"mqtt";u(e);var i=a(e,t);return n(i,[r],e.wsOptions)}function l(t,e){return c(t,e)}function f(t,e){if(e.hostname||(e.hostname=e.host),!e.hostname){if("undefined"===typeof document)throw new Error("Could not determine host. 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be a function');if(i=this._events,!i)return this;if(r=i[t],!r)return this;if(r===e||r.listener===e)0===--this._eventsCount?this._events=n(null):(delete i[t],i.removeListener&&this.emit("removeListener",t,r.listener||e));else if("function"!==typeof r){for(o=-1,s=r.length-1;s>=0;s--)if(r[s]===e||r[s].listener===e){a=r[s].listener,o=s;break}if(o<0)return this;0===o?r.shift():w(r,o),1===r.length&&(i[t]=r[0]),i.removeListener&&this.emit("removeListener",t,a||e)}return this},s.prototype.removeAllListeners=function(t){var e,r,o;if(r=this._events,!r)return this;if(!r.removeListener)return 0===arguments.length?(this._events=n(null),this._eventsCount=0):r[t]&&(0===--this._eventsCount?this._events=n(null):delete r[t]),this;if(0===arguments.length){var s,a=i(r);for(o=0;o<a.length;++o)s=a[o],"removeListener"!==s&&this.removeAllListeners(s);return this.removeAllListeners("removeListener"),this._events=n(null),this._eventsCount=0,this}if(e=r[t],"function"===typeof e)this.removeListener(t,e);else if(e)for(o=e.length-1;o>=0;o--)this.removeListener(t,e[o]);return this},s.prototype.listeners=function(t){return m(this,t,!0)},s.prototype.rawListeners=function(t){return m(this,t,!1)},s.listenerCount=function(t,e){return"function"===typeof t.listenerCount?t.listenerCount(e):v.call(t,e)},s.prototype.listenerCount=v,s.prototype.eventNames=function(){return this._eventsCount>0?Reflect.ownKeys(this._events):[]}},{}],79:[function(t,e,r){r.read=function(t,e,r,n,i){var o,s,a=8*i-n-1,u=(1<<a)-1,c=u>>1,l=-7,f=r?i-1:0,h=r?-1:1,p=t[e+f];for(f+=h,o=p&(1<<-l)-1,p>>=-l,l+=a;l>0;o=256*o+t[e+f],f+=h,l-=8);for(s=o&(1<<-l)-1,o>>=-l,l+=n;l>0;s=256*s+t[e+f],f+=h,l-=8);if(0===o)o=1-c;else{if(o===u)return s?NaN:1/0*(p?-1:1);s+=Math.pow(2,n),o-=c}return(p?-1:1)*s*Math.pow(2,o-n)},r.write=function(t,e,r,n,i,o){var s,a,u,c=8*o-i-1,l=(1<<c)-1,f=l>>1,h=23===i?Math.pow(2,-24)-Math.pow(2,-77):0,p=n?0:o-1,d=n?1:-1,g=e<0||0===e&&1/e<0?1:0;for(e=Math.abs(e),isNaN(e)||e===1/0?(a=isNaN(e)?1:0,s=l):(s=Math.floor(Math.log(e)/Math.LN2),e*(u=Math.pow(2,-s))<1&&(s--,u*=2),e+=s+f>=1?h/u:h*Math.pow(2,1-f),e*u>=2&&(s++,u/=2),s+f>=l?(a=0,s=l):s+f>=1?(a=(e*u-1)*Math.pow(2,i),s+=f):(a=e*Math.pow(2,f-1)*Math.pow(2,i),s=0));i>=8;t[r+p]=255&a,p+=d,a/=256,i-=8);for(s=s<<i|a,c+=i;c>0;t[r+p]=255&s,p+=d,s/=256,c-=8);t[r+p-d]|=128*g}},{}],80:[function(t,e,r){"function"===typeof Object.create?e.exports=function(t,e){t.super_=e,t.prototype=Object.create(e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}})}:e.exports=function(t,e){t.super_=e;var r=function(){};r.prototype=e.prototype,t.prototype=new r,t.prototype.constructor=t}},{}],81:[function(t,e,r){function n(t){return!!t.constructor&&"function"===typeof t.constructor.isBuffer&&t.constructor.isBuffer(t)}function i(t){return"function"===typeof t.readFloatLE&&"function"===typeof t.slice&&n(t.slice(0,0))}e.exports=function(t){return null!=t&&(n(t)||i(t)||!!t._isBuffer)}},{}],82:[function(t,e,r){var n={}.toString;e.exports=Array.isArray||function(t){return"[object Array]"==n.call(t)}},{}],83:[function(t,e,r){"use strict";var n=t("safe-buffer").Buffer,i=e.exports;for(var o in i.types={0:"reserved",1:"connect",2:"connack",3:"publish",4:"puback",5:"pubrec",6:"pubrel",7:"pubcomp",8:"subscribe",9:"suback",10:"unsubscribe",11:"unsuback",12:"pingreq",13:"pingresp",14:"disconnect",15:"reserved"},i.codes={},i.types){var s=i.types[o];i.codes[s]=o}function a(t){return[0,1,2].map((function(e){return[0,1].map((function(r){return[0,1].map((function(o){var s=new n(1);return s.writeUInt8(i.codes[t]<<i.CMD_SHIFT|(r?i.DUP_MASK:0)|e<<i.QOS_SHIFT|o,0,!0),s}))}))}))}i.CMD_SHIFT=4,i.CMD_MASK=240,i.DUP_MASK=8,i.QOS_MASK=3,i.QOS_SHIFT=1,i.RETAIN_MASK=1,i.LENGTH_MASK=127,i.LENGTH_FIN_MASK=128,i.SESSIONPRESENT_MASK=1,i.SESSIONPRESENT_HEADER=n.from([i.SESSIONPRESENT_MASK]),i.CONNACK_HEADER=n.from([i.codes["connack"]<<i.CMD_SHIFT]),i.USERNAME_MASK=128,i.PASSWORD_MASK=64,i.WILL_RETAIN_MASK=32,i.WILL_QOS_MASK=24,i.WILL_QOS_SHIFT=3,i.WILL_FLAG_MASK=4,i.CLEAN_SESSION_MASK=2,i.CONNECT_HEADER=n.from([i.codes["connect"]<<i.CMD_SHIFT]),i.PUBLISH_HEADER=a("publish"),i.SUBSCRIBE_HEADER=a("subscribe"),i.UNSUBSCRIBE_HEADER=a("unsubscribe"),i.ACKS={unsuback:a("unsuback"),puback:a("puback"),pubcomp:a("pubcomp"),pubrel:a("pubrel"),pubrec:a("pubrec")},i.SUBACK_HEADER=n.from([i.codes["suback"]<<i.CMD_SHIFT]),i.VERSION3=n.from([3]),i.VERSION4=n.from([4]),i.QOS=[0,1,2].map((function(t){return n.from([t])})),i.EMPTY={pingreq:n.from([i.codes["pingreq"]<<4,0]),pingresp:n.from([i.codes["pingresp"]<<4,0]),disconnect:n.from([i.codes["disconnect"]<<4,0])}},{"safe-buffer":108}],84:[function(t,e,r){"use strict";var n=t("safe-buffer").Buffer,i=t("./writeToStream"),o=t("events").EventEmitter,s=t("inherits");function a(t){var e=new u;return i(t,e),e.concat()}function u(){this._array=new Array(20),this._i=0}s(u,o),u.prototype.write=function(t){return this._array[this._i++]=t,!0},u.prototype.concat=function(){var t,e,r=0,i=new Array(this._array.length),o=this._array,s=0;for(t=0;t<o.length&&void 0!==o[t];t++)"string"!==typeof o[t]?i[t]=o[t].length:i[t]=n.byteLength(o[t]),r+=i[t];for(e=n.allocUnsafe(r),t=0;t<o.length&&void 0!==o[t];t++)"string"!==typeof o[t]?(o[t].copy(e,s),s+=i[t]):(e.write(o[t],s),s+=i[t]);return e},e.exports=a},{"./writeToStream":89,events:78,inherits:80,"safe-buffer":108}],85:[function(t,e,r){"use strict";r.parser=t("./parser"),r.generate=t("./generate"),r.writeToStream=t("./writeToStream")},{"./generate":84,"./parser":88,"./writeToStream":89}],86:[function(t,e,r){"use strict";var n=t("safe-buffer").Buffer,i=65536,o={};function s(t){var e=n.allocUnsafe(2);return e.writeUInt8(t>>8,0),e.writeUInt8(255&t,1),e}function a(){for(var t=0;t<i;t++)o[t]=s(t)}e.exports={cache:o,generateCache:a,generateNumber:s}},{"safe-buffer":108}],87:[function(t,e,r){function n(){this.cmd=null,this.retain=!1,this.qos=0,this.dup=!1,this.length=-1,this.topic=null,this.payload=null}e.exports=n},{}],88:[function(t,e,r){"use strict";var n=t("bl"),i=t("inherits"),o=t("events").EventEmitter,s=t("./packet"),a=t("./constants");function u(){if(!(this instanceof u))return new u;this._states=["_parseHeader","_parseLength","_parsePayload","_newPacket"],this._resetState()}i(u,o),u.prototype._resetState=function(){this.packet=new s,this.error=null,this._list=n(),this._stateCounter=0},u.prototype.parse=function(t){this.error&&this._resetState(),this._list.append(t);while((-1!==this.packet.length||this._list.length>0)&&this[this._states[this._stateCounter]]()&&!this.error)this._stateCounter++,this._stateCounter>=this._states.length&&(this._stateCounter=0);return this._list.length},u.prototype._parseHeader=function(){var t=this._list.readUInt8(0);return this.packet.cmd=a.types[t>>a.CMD_SHIFT],this.packet.retain=0!==(t&a.RETAIN_MASK),this.packet.qos=t>>a.QOS_SHIFT&a.QOS_MASK,this.packet.dup=0!==(t&a.DUP_MASK),this._list.consume(1),!0},u.prototype._parseLength=function(){var t,e=0,r=1,n=0,i=!0;while(e<5){if(t=this._list.readUInt8(e++),n+=r*(t&a.LENGTH_MASK),r*=128,0===(t&a.LENGTH_FIN_MASK))break;if(this._list.length<=e){i=!1;break}}return i&&(this.packet.length=n,this._list.consume(e)),i},u.prototype._parsePayload=function(){var t=!1;if(0===this.packet.length||this._list.length>=this.packet.length){switch(this._pos=0,this.packet.cmd){case"connect":this._parseConnect();break;case"connack":this._parseConnack();break;case"publish":this._parsePublish();break;case"puback":case"pubrec":case"pubrel":case"pubcomp":this._parseMessageId();break;case"subscribe":this._parseSubscribe();break;case"suback":this._parseSuback();break;case"unsubscribe":this._parseUnsubscribe();break;case"unsuback":this._parseUnsuback();break;case"pingreq":case"pingresp":case"disconnect":break;default:this._emitError(new Error("Not supported"))}t=!0}return t},u.prototype._parseConnect=function(){var t,e,r,n,i,o,s={},u=this.packet;if(t=this._parseString(),null===t)return this._emitError(new Error("Cannot parse protocolId"));if("MQTT"!==t&&"MQIsdp"!==t)return this._emitError(new Error("Invalid protocolId"));if(u.protocolId=t,this._pos>=this._list.length)return this._emitError(new Error("Packet too short"));if(u.protocolVersion=this._list.readUInt8(this._pos),3!==u.protocolVersion&&4!==u.protocolVersion)return this._emitError(new Error("Invalid protocol version"));if(this._pos++,this._pos>=this._list.length)return this._emitError(new Error("Packet too short"));if(s.username=this._list.readUInt8(this._pos)&a.USERNAME_MASK,s.password=this._list.readUInt8(this._pos)&a.PASSWORD_MASK,s.will=this._list.readUInt8(this._pos)&a.WILL_FLAG_MASK,s.will&&(u.will={},u.will.retain=0!==(this._list.readUInt8(this._pos)&a.WILL_RETAIN_MASK),u.will.qos=(this._list.readUInt8(this._pos)&a.WILL_QOS_MASK)>>a.WILL_QOS_SHIFT),u.clean=0!==(this._list.readUInt8(this._pos)&a.CLEAN_SESSION_MASK),this._pos++,u.keepalive=this._parseNum(),-1===u.keepalive)return this._emitError(new Error("Packet too short"));if(e=this._parseString(),null===e)return this._emitError(new Error("Packet too short"));if(u.clientId=e,s.will){if(r=this._parseString(),null===r)return this._emitError(new Error("Cannot parse will topic"));if(u.will.topic=r,n=this._parseBuffer(),null===n)return this._emitError(new Error("Cannot parse will payload"));u.will.payload=n}if(s.username){if(o=this._parseString(),null===o)return this._emitError(new Error("Cannot parse username"));u.username=o}if(s.password){if(i=this._parseBuffer(),null===i)return this._emitError(new Error("Cannot parse password"));u.password=i}return u},u.prototype._parseConnack=function(){var t=this.packet;return this._list.length<2?null:(t.sessionPresent=!!(this._list.readUInt8(this._pos++)&a.SESSIONPRESENT_MASK),t.returnCode=this._list.readUInt8(this._pos),-1===t.returnCode?this._emitError(new Error("Cannot parse return code")):void 0)},u.prototype._parsePublish=function(){var t=this.packet;if(t.topic=this._parseString(),null===t.topic)return this._emitError(new Error("Cannot parse topic"));t.qos>0&&!this._parseMessageId()||(t.payload=this._list.slice(this._pos,t.length))},u.prototype._parseSubscribe=function(){var t,e,r=this.packet;if(1!==r.qos)return this._emitError(new Error("Wrong subscribe header"));if(r.subscriptions=[],this._parseMessageId())while(this._pos<r.length){if(t=this._parseString(),null===t)return this._emitError(new Error("Cannot parse topic"));e=this._list.readUInt8(this._pos++),r.subscriptions.push({topic:t,qos:e})}},u.prototype._parseSuback=function(){if(this.packet.granted=[],this._parseMessageId())while(this._pos<this.packet.length)this.packet.granted.push(this._list.readUInt8(this._pos++))},u.prototype._parseUnsubscribe=function(){var t=this.packet;if(t.unsubscriptions=[],this._parseMessageId())while(this._pos<t.length){var e;if(e=this._parseString(),null===e)return this._emitError(new Error("Cannot parse topic"));t.unsubscriptions.push(e)}},u.prototype._parseUnsuback=function(){if(!this._parseMessageId())return this._emitError(new Error("Cannot parse messageId"))},u.prototype._parseMessageId=function(){var t=this.packet;return t.messageId=this._parseNum(),null!==t.messageId||(this._emitError(new Error("Cannot parse messageId")),!1)},u.prototype._parseString=function(t){var e,r=this._parseNum(),n=r+this._pos;return-1===r||n>this._list.length||n>this.packet.length?null:(e=this._list.toString("utf8",this._pos,n),this._pos+=r,e)},u.prototype._parseBuffer=function(){var t,e=this._parseNum(),r=e+this._pos;return-1===e||r>this._list.length||r>this.packet.length?null:(t=this._list.slice(this._pos,r),this._pos+=e,t)},u.prototype._parseNum=function(){if(this._list.length-this._pos<2)return-1;var t=this._list.readUInt16BE(this._pos);return this._pos+=2,t},u.prototype._newPacket=function(){return this.packet&&(this._list.consume(this.packet.length),this.emit("packet",this.packet)),this.packet=new s,!0},u.prototype._emitError=function(t){this.error=t,this.emit("error",t)},e.exports=u},{"./constants":83,"./packet":87,bl:10,events:78,inherits:80}],89:[function(t,e,r){"use strict";var n=t("./constants"),i=t("safe-buffer").Buffer,o=i.allocUnsafe(0),s=i.from([0]),a=t("./numbers"),u=t("process-nextick-args").nextTick,c=a.cache,l=a.generateNumber,f=a.generateCache,h=T,p=!0;function d(t,e){switch(e.cork&&(e.cork(),u(g,e)),p&&(p=!1,f()),t.cmd){case"connect":return y(t,e);case"connack":return b(t,e);case"publish":return _(t,e);case"puback":case"pubrec":case"pubrel":case"pubcomp":case"unsuback":return m(t,e);case"subscribe":return v(t,e);case"suback":return w(t,e);case"unsubscribe":return x(t,e);case"pingreq":case"pingresp":case"disconnect":return S(t,e);default:return e.emit("error",new Error("Unknown command")),!1}}function g(t){t.uncork()}function y(t,e){var r=t||{},o=r.protocolId||"MQTT",s=r.protocolVersion||4,a=r.will,u=r.clean,c=r.keepalive||0,l=r.clientId||"",f=r.username,p=r.password;void 0===u&&(u=!0);var d=0;if(!o||"string"!==typeof o&&!i.isBuffer(o))return e.emit("error",new Error("Invalid protocolId")),!1;if(d+=o.length+2,3!==s&&4!==s)return e.emit("error",new Error("Invalid protocol version")),!1;if(d+=1,"string"!==typeof l&&!i.isBuffer(l)||!l&&4!==s||!l&&!u){if(s<4)return e.emit("error",new Error("clientId must be supplied before 3.1.1")),!1;if(1*u===0)return e.emit("error",new Error("clientId must be given if cleanSession set to 0")),!1}else d+=l.length+2;if("number"!==typeof c||c<0||c>65535||c%1!==0)return e.emit("error",new Error("Invalid keepalive")),!1;if(d+=2,d+=1,a){if("object"!==typeof a)return e.emit("error",new Error("Invalid will")),!1;if(!a.topic||"string"!==typeof a.topic)return e.emit("error",new Error("Invalid will topic")),!1;if(d+=i.byteLength(a.topic)+2,a.payload&&a.payload){if(!(a.payload.length>=0))return e.emit("error",new Error("Invalid will payload")),!1;"string"===typeof a.payload?d+=i.byteLength(a.payload)+2:d+=a.payload.length+2}else d+=2}var g=!1;if(null!=f){if(!L(f))return e.emit("error",new Error("Invalid username")),!1;g=!0,d+=i.byteLength(f)+2}if(null!=p){if(!g)return e.emit("error",new Error("Username is 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