import{d as xe,ag as Ge,A as Be,ah as Qe,G as Te,D as Oe,c as _e,e as me,f as we,h as fe,i as ce,ai as Je,F as Pe,j as De,k as ke,g as he,S as qe,J as Ze,T as Ye,t as Ie,y as Fe,aj as Xe,n as We,_ as Ee,p as Ke,a3 as ge,r as ye,b as He,ak as et,al as tt,q as Re,s as Le,am as rt,a as nt,l as je,an as it,ao as ze,ap as Ve,E as Me,aq as ot,C as st}from"./index-ccab2584.js";import{_ as Ue}from"./notData-cf10628e.js";import{c as Ce}from"./_commonjs-dynamic-modules-d7dd40bd.js";const at=["onClick"],ut={class:"breadcrumb-title"},lt=xe({__name:"Breadcrumb",setup(de){const ve=Ge(),s=Be(),v=Qe(),x=Te(),i=Oe(()=>x.themeConfig),a=Oe(()=>{var u;return(u=v.breadcrumbListGet[ve.matched[ve.matched.length-1].path])!=null?u:[]}),d=(f,u)=>{u!==a.value.length-1&&s.push(f.path)};return(f,u)=>{const e=_e("el-icon"),n=_e("el-breadcrumb-item"),o=_e("el-breadcrumb");return 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R(S){S&&Object.keys(S).forEach(function(j){typeof S[j]=="function"&&(S[j](new Error("Connection closed")),delete S[j])})}function C(S,j,W){S.outgoingStore.put(j,function(ee){if(ee)return W&&W(ee);P(S,j,W)})}function T(){}function A(S,j){var W,M=this;if(!(this instanceof A))return new A(S,j);this.options=j||{};for(W in O)typeof this.options[W]>"u"?this.options[W]=O[W]:this.options[W]=j[W];this.options.clientId=typeof this.options.clientId=="string"?this.options.clientId:m(),this.streamBuilder=S,this.outgoingStore=this.options.outgoingStore||new f,this.incomingStore=this.options.incomingStore||new f,this.queueQoSZero=this.options.queueQoSZero===void 0?!0: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(Math.random()*65535)),this.outgoing={},this.on("connect",function(){if(this.disconnected)return;this.connected=!0;var g=this.outgoingStore.createStream();this.once("close",D),g.on("end",function(){M.removeListener("close",D)}),g.on("error",function(V){M.removeListener("close",D),M.emit("error",V)});function D(){g.destroy(),g=null}function F(){if(!!g){var V=g.read(1),Z;if(!V){g.once("readable",F);return}!M.disconnecting&&!M.reconnectTimer?(Z=M.outgoing[V.messageId],M.outgoing[V.messageId]=function(K,Q){Z&&Z(K,Q),F()},M._sendPacket(V)):g.destroy&&g.destroy()}}F()}),this.on("close",function(){this.connected=!1,clearTimeout(this.connackTimer)}),this.on("connect",this._setupPingTimer),this.on("connect",function(){var g=this.queue;function D(){var F=g.shift(),V=null;!F||(V=F.packet,M._sendPacket(V,function(Z){F.cb&&F.cb(Z),D()}))}D()});var ee=!0;this.on("connect",function(){!ee&&this.options.clean&&Object.keys(this._resubscribeTopics).length>0&&(this.options.resubscribe?(this._resubscribeTopics.resubscribe=!0,this.subscribe(this._resubscribeTopics)):this._resubscribeTopics={}),ee=!1}),this.on("close",function(){M.pingTimer!==null&&(M.pingTimer.clear(),M.pingTimer=null)}),this.on("close",this._setupReconnect),d.EventEmitter.call(this),this._setupStream()}o(A,d.EventEmitter),A.prototype._setupStream=function(){var S,j=this,W=new n,M=e.parser(this.options),ee=null,g=[];this._clearReconnect(),this.stream=this.streamBuilder(this),M.on("packet",function(V){g.push(V)});function D(){i.nextTick(F)}function F(){var V=g.shift(),Z=ee;V?j._handlePacket(V,D):(ee=null,Z())}W._write=function(V,Z,K){ee=K,M.parse(V),F()},this.stream.pipe(W),this.stream.on("error",T),u(this.stream,this.emit.bind(this,"close")),S=Object.create(this.options),S.cmd="connect",P(this,S),M.on("error",this.emit.bind(this,"error")),this.stream.setMaxListeners(1e3),clearTimeout(this.connackTimer),this.connackTimer=setTimeout(function(){j._cleanUp(!0)},this.options.connectTimeout)},A.prototype._handlePacket=function(S,j){switch(this.emit("packetreceive",S),S.cmd){case"publish":this._handlePublish(S,j);break;case"puback":case"pubrec":case"pubcomp":case"suback":case"unsuback":this._handleAck(S),j();break;case"pubrel":this._handlePubrel(S,j);break;case"connack":this._handleConnack(S),j();break;case"pingresp":this._handlePingresp(S),j();break}},A.prototype._checkDisconnecting=function(S){return this.disconnecting&&(S?S(new Error("client disconnecting")):this.emit("error",new Error("client disconnecting"))),this.disconnecting},A.prototype.publish=function(S,j,W,M){var ee;typeof W=="function"&&(M=W,W=null);var g={qos:0,retain:!1,dup:!1};if(W=_(g,W),this._checkDisconnecting(M))return this;switch(ee={cmd:"publish",topic:S,payload:j,qos:W.qos,retain:W.retain,messageId:this._nextId(),dup:W.dup},W.qos){case 1:case 2:this.outgoing[ee.messageId]=M||T,this._sendPacket(ee);break;default:this._sendPacket(ee,M);break}return this},A.prototype.subscribe=function(){var S,j=Array.prototype.slice.call(arguments),W=[],M=j.shift(),ee=M.resubscribe,g=j.pop()||T,D=j.pop(),F,V=this;if(delete M.resubscribe,typeof M=="string"&&(M=[M]),typeof g!="function"&&(D=g,g=T),F=l.validateTopics(M),F!==null)return E(g,new Error("Invalid topic "+F)),this;if(this._checkDisconnecting(g))return this;var Z={qos:0};if(D=_(Z,D),Array.isArray(M)?M.forEach(function(Q){(V._resubscribeTopics[Q]<D.qos||!V._resubscribeTopics.hasOwnProperty(Q)||ee)&&W.push({topic:Q,qos:D.qos})}):Object.keys(M).forEach(function(Q){(V._resubscribeTopics[Q]<M[Q]||!V._resubscribeTopics.hasOwnProperty(Q)||ee)&&W.push({topic:Q,qos:M[Q]})}),S={cmd:"subscribe",subscriptions:W,qos:1,retain:!1,dup:!1,messageId:this._nextId()},!W.length){g(null,[]);return}if(this.options.resubscribe){var K=[];W.forEach(function(Q){V.options.reconnectPeriod>0&&(V._resubscribeTopics[Q.topic]=Q.qos,K.push(Q.topic))}),V.messageIdToTopic[S.messageId]=K}return this.outgoing[S.messageId]=function(Q,z){if(!Q)for(var N=z.granted,re=0;re<N.length;re+=1)W[re].qos=N[re];g(Q,W)},this._sendPacket(S),this},A.prototype.unsubscribe=function(S,j){var W={cmd:"unsubscribe",qos:1,messageId:this._nextId()},M=this;return j=j||T,this._checkDisconnecting(j)?this:(typeof S=="string"?W.unsubscriptions=[S]:typeof S=="object"&&S.length&&(W.unsubscriptions=S),this.options.resubscribe&&W.unsubscriptions.forEach(function(ee){delete M._resubscribeTopics[ee]}),this.outgoing[W.messageId]=j,this._sendPacket(W),this)},A.prototype.end=function(S,j){var W=this;typeof S=="function"&&(j=S,S=!1);function M(){W.disconnected=!0,W.incomingStore.close(function(){W.outgoingStore.close(function(){j&&j.apply(null,arguments),W.emit("end")})}),W._deferredReconnect&&W._deferredReconnect()}function ee(){W._cleanUp(S,E.bind(null,M))}return this.disconnecting?this:(this._clearReconnect(),this.disconnecting=!0,!S&&Object.keys(this.outgoing).length>0?this.once("outgoingEmpty",setTimeout.bind(null,ee,10)):ee(),this)},A.prototype.removeOutgoingMessage=function(S){var j=this.outgoing[S];return delete this.outgoing[S],this.outgoingStore.del({messageId:S},function(){j(new Error("Message removed"))}),this},A.prototype.reconnect=function(S){var j=this,W=function(){S?(j.options.incomingStore=S.incomingStore,j.options.outgoingStore=S.outgoingStore):(j.options.incomingStore=null,j.options.outgoingStore=null),j.incomingStore=j.options.incomingStore||new f,j.outgoingStore=j.options.outgoingStore||new f,j.disconnecting=!1,j.disconnected=!1,j._deferredReconnect=null,j._reconnect()};return this.disconnecting&&!this.disconnected?this._deferredReconnect=W:W(),this},A.prototype._reconnect=function(){this.emit("reconnect"),this._setupStream()},A.prototype._setupReconnect=function(){var S=this;!S.disconnecting&&!S.reconnectTimer&&S.options.reconnectPeriod>0&&(this.reconnecting||(this.emit("offline"),this.reconnecting=!0),S.reconnectTimer=setInterval(function(){S._reconnect()},S.options.reconnectPeriod))},A.prototype._clearReconnect=function(){this.reconnectTimer&&(clearInterval(this.reconnectTimer),this.reconnectTimer=null)},A.prototype._cleanUp=function(S,j){j&&this.stream.on("close",j),S?(this.options.reconnectPeriod===0&&this.options.clean&&R(this.outgoing),this.stream.destroy()):this._sendPacket({cmd:"disconnect"},E.bind(null,this.stream.end.bind(this.stream))),this.disconnecting||(this._clearReconnect(),this._setupReconnect()),this.pingTimer!==null&&(this.pingTimer.clear(),this.pingTimer=null),j&&!this.connected&&(this.stream.removeListener("close",j),j())},A.prototype._sendPacket=function(S,j){if(!this.connected){(S.qos||0)===0&&this.queueQoSZero||S.cmd!=="publish"?this.queue.push({packet:S,cb:j}):S.qos>0?(j=this.outgoing[S.messageId],this.outgoingStore.put(S,function(W){if(W)return j&&j(W)})):j&&j(new Error("No connection to broker"));return}switch(this._shiftPingInterval(),S.cmd){case"publish":break;case"pubrel":C(this,S,j);return;default:P(this,S,j);return}switch(S.qos){case 2:case 1:C(this,S,j);break;case 0:default:P(this,S,j);break}},A.prototype._setupPingTimer=function(){var S=this;!this.pingTimer&&this.options.keepalive&&(this.pingResp=!0,this.pingTimer=c(function(){S._checkPing()},this.options.keepalive*1e3))},A.prototype._shiftPingInterval=function(){this.pingTimer&&this.options.keepalive&&this.options.reschedulePings&&this.pingTimer.reschedule(this.options.keepalive*1e3)},A.prototype._checkPing=function(){this.pingResp?(this.pingResp=!1,this._sendPacket({cmd:"pingreq"})):this._cleanUp(!0)},A.prototype._handlePingresp=function(){this.pingResp=!0},A.prototype._handleConnack=function(S){var j=S.returnCode,W=["","Unacceptable protocol version","Identifier rejected","Server unavailable","Bad username or password","Not authorized"];if(clearTimeout(this.connackTimer),j===0)this.reconnecting=!1,this.emit("connect",S);else if(j>0){var M=new Error("Connection refused: "+W[j]);M.code=j,this.emit("error",M)}},A.prototype._handlePublish=function(S,j){j=typeof j<"u"?j:T;var W=S.topic.toString(),M=S.payload,ee=S.qos,g=S.messageId,D=this;switch(ee){case 2:this.incomingStore.put(S,function(F){if(F)return j(F);D._sendPacket({cmd:"pubrec",messageId:g},j)});break;case 1:this.emit("message",W,M,S),this.handleMessage(S,function(F){if(F)return j(F);D._sendPacket({cmd:"puback",messageId:g},j)});break;case 0:this.emit("message",W,M,S),this.handleMessage(S,j);break}},A.prototype.handleMessage=function(S,j){j()},A.prototype._handleAck=function(S){var j=S.messageId,W=S.cmd,M=null,ee=this.outgoing[j],g=this;if(!!ee){switch(W){case"pubcomp":case"puback":delete this.outgoing[j],this.outgoingStore.del(S,ee);break;case"pubrec":M={cmd:"pubrel",qos:2,messageId:j},this._sendPacket(M);break;case"suback":if(delete this.outgoing[j],S.granted.length===1&&(S.granted[0]&128)!==0){var D=this.messageIdToTopic[j];D&&D.forEach(function(F){delete g._resubscribeTopics[F]})}ee(null,S);break;case"unsuback":delete this.outgoing[j],ee(null);break;default:g.emit("error",new Error("unrecognized packet type"))}this.disconnecting&&Object.keys(this.outgoing).length===0&&this.emit("outgoingEmpty")}},A.prototype._handlePubrel=function(S,j){j=typeof j<"u"?j:T;var W=S.messageId,M=this,ee={cmd:"pubcomp",messageId:W};M.incomingStore.get(S,function(g,D){!g&&D.cmd!=="pubrel"?(M.emit("message",D.topic,D.payload,D),M.incomingStore.put(S,function(F){if(F)return j(F);M.handleMessage(D,function(V){if(V)return j(V);M._sendPacket(ee,j)})})):M._sendPacket(ee,j)})},A.prototype._nextId=function(){var S=this.nextId++;return this.nextId===65536&&(this.nextId=1),S},A.prototype.getLastMessageId=function(){return this.nextId===1?65535:this.nextId-1},v.exports=A}).call(this,s("_process"),typeof ge<"u"?ge:typeof self<"u"?self:typeof window<"u"?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(s,v,x){var i=s("net");function a(d,f){var u,e;return f.port=f.port||1883,f.hostname=f.hostname||f.host||"localhost",u=f.port,e=f.hostname,i.createConnection(u,e)}v.exports=a},{net:11}],3:[function(s,v,x){var i=s("tls");function a(d,f){var u;f.port=f.port||8883,f.host=f.hostname||f.host||"localhost",f.rejectUnauthorized=f.rejectUnauthorized!==!1,delete f.path,u=i.connect(f),u.on("secureConnect",function(){f.rejectUnauthorized&&!u.authorized?u.emit("error",new Error("TLS not authorized")):u.removeListener("error",e)});function e(n){f.rejectUnauthorized&&d.emit("error",n),u.end()}return u.on("error",e),u}v.exports=a},{tls:11}],4:[function(s,v,x){(function(i){var a=s("websocket-stream"),d=s("url"),f=["rejectUnauthorized","ca","cert","key","pfx","passphrase"],u=i.title==="browser";function e(_,E){var 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D=this._events;if(D){var F=D[g];if(typeof F=="function")return 1;if(F)return F.length}return 0}f.prototype.eventNames=function(){return this._eventsCount>0?Reflect.ownKeys(this._events):[]};function A(g,D){for(var F=D,V=F+1,Z=g.length;V<Z;F+=1,V+=1)g[F]=g[V];g.pop()}function S(g,D){for(var F=new Array(D),V=0;V<D;++V)F[V]=g[V];return F}function j(g){for(var D=new Array(g.length),F=0;F<D.length;++F)D[F]=g[F].listener||g[F];return D}function W(g){var D=function(){};return D.prototype=g,new D}function M(g){for(var D in g)Object.prototype.hasOwnProperty.call(g,D);return D}function ee(g){var D=this;return function(){return D.apply(g,arguments)}}},{}],79:[function(s,v,x){x.read=function(i,a,d,f,u){var e,n,o=u*8-f-1,c=(1<<o)-1,l=c>>1,_=-7,E=d?u-1:0,O=d?-1:1,m=i[a+E];for(E+=O,e=m&(1<<-_)-1,m>>=-_,_+=o;_>0;e=e*256+i[a+E],E+=O,_-=8);for(n=e&(1<<-_)-1,e>>=-_,_+=f;_>0;n=n*256+i[a+E],E+=O,_-=8);if(e===0)e=1-l;else{if(e===c)return n?NaN:(m?-1:1)*(1/0);n=n+Math.pow(2,f),e=e-l}return(m?-1:1)*n*Math.pow(2,e-f)},x.write=function(i,a,d,f,u,e){var n,o,c,l=e*8-u-1,_=(1<<l)-1,E=_>>1,O=u===23?Math.pow(2,-24)-Math.pow(2,-77):0,m=f?0:e-1,P=f?1:-1,R=a<0||a===0&&1/a<0?1:0;for(a=Math.abs(a),isNaN(a)||a===1/0?(o=isNaN(a)?1:0,n=_):(n=Math.floor(Math.log(a)/Math.LN2),a*(c=Math.pow(2,-n))<1&&(n--,c*=2),n+E>=1?a+=O/c:a+=O*Math.pow(2,1-E),a*c>=2&&(n++,c/=2),n+E>=_?(o=0,n=_):n+E>=1?(o=(a*c-1)*Math.pow(2,u),n=n+E):(o=a*Math.pow(2,E-1)*Math.pow(2,u),n=0));u>=8;i[d+m]=o&255,m+=P,o/=256,u-=8);for(n=n<<u|o,l+=u;l>0;i[d+m]=n&255,m+=P,n/=256,l-=8);i[d+m-P]|=R*128}},{}],80:[function(s,v,x){typeof Object.create=="function"?v.exports=function(a,d){a.super_=d,a.prototype=Object.create(d.prototype,{constructor:{value:a,enumerable:!1,writable:!0,configurable:!0}})}:v.exports=function(a,d){a.super_=d;var f=function(){};f.prototype=d.prototype,a.prototype=new f,a.prototype.constructor=a}},{}],81:[function(s,v,x){v.exports=function(d){return d!=null&&(i(d)||a(d)||!!d._isBuffer)};function i(d){return!!d.constructor&&typeof d.constructor.isBuffer=="function"&&d.constructor.isBuffer(d)}function a(d){return typeof d.readFloatLE=="function"&&typeof d.slice=="function"&&i(d.slice(0,0))}},{}],82:[function(s,v,x){var i={}.toString;v.exports=Array.isArray||function(a){return i.call(a)=="[object Array]"}},{}],83:[function(s,v,x){var i=s("safe-buffer").Buffer,a=v.exports;a.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"},a.codes={};for(var d in a.types){var f=a.types[d];a.codes[f]=d}a.CMD_SHIFT=4,a.CMD_MASK=240,a.DUP_MASK=8,a.QOS_MASK=3,a.QOS_SHIFT=1,a.RETAIN_MASK=1,a.LENGTH_MASK=127,a.LENGTH_FIN_MASK=128,a.SESSIONPRESENT_MASK=1,a.SESSIONPRESENT_HEADER=i.from([a.SESSIONPRESENT_MASK]),a.CONNACK_HEADER=i.from([a.codes.connack<<a.CMD_SHIFT]),a.USERNAME_MASK=128,a.PASSWORD_MASK=64,a.WILL_RETAIN_MASK=32,a.WILL_QOS_MASK=24,a.WILL_QOS_SHIFT=3,a.WILL_FLAG_MASK=4,a.CLEAN_SESSION_MASK=2,a.CONNECT_HEADER=i.from([a.codes.connect<<a.CMD_SHIFT]);function u(e){return[0,1,2].map(function(n){return[0,1].map(function(o){return[0,1].map(function(c){var l=new i(1);return l.writeUInt8(a.codes[e]<<a.CMD_SHIFT|(o?a.DUP_MASK:0)|n<<a.QOS_SHIFT|c,0,!0),l})})})}a.PUBLISH_HEADER=u("publish"),a.SUBSCRIBE_HEADER=u("subscribe"),a.UNSUBSCRIBE_HEADER=u("unsubscribe"),a.ACKS={unsuback:u("unsuback"),puback:u("puback"),pubcomp:u("pubcomp"),pubrel:u("pubrel"),pubrec:u("pubrec")},a.SUBACK_HEADER=i.from([a.codes.suback<<a.CMD_SHIFT]),a.VERSION3=i.from([3]),a.VERSION4=i.from([4]),a.QOS=[0,1,2].map(function(e){return i.from([e])}),a.EMPTY={pingreq:i.from([a.codes.pingreq<<4,0]),pingresp:i.from([a.codes.pingresp<<4,0]),disconnect:i.from([a.codes.disconnect<<4,0])}},{"safe-buffer":108}],84:[function(s,v,x){var i=s("safe-buffer").Buffer,a=s("./writeToStream"),d=s("events").EventEmitter,f=s("inherits");function u(n){var o=new e;return a(n,o),o.concat()}function e(){this._array=new Array(20),this._i=0}f(e,d),e.prototype.write=function(n){return this._array[this._i++]=n,!0},e.prototype.concat=function(){var n=0,o=new Array(this._array.length),c=this._array,l=0,_,E;for(_=0;_<c.length&&c[_]!==void 0;_++)typeof c[_]!="string"?o[_]=c[_].length:o[_]=i.byteLength(c[_]),n+=o[_];for(E=i.allocUnsafe(n),_=0;_<c.length&&c[_]!==void 0;_++)typeof c[_]!="string"?(c[_].copy(E,l),l+=o[_]):(E.write(c[_],l),l+=o[_]);return E},v.exports=u},{"./writeToStream":89,events:78,inherits:80,"safe-buffer":108}],85:[function(s,v,x){x.parser=s("./parser"),x.generate=s("./generate"),x.writeToStream=s("./writeToStream")},{"./generate":84,"./parser":88,"./writeToStream":89}],86:[function(s,v,x){var i=s("safe-buffer").Buffer,a=65536,d={};function f(e){var n=i.allocUnsafe(2);return n.writeUInt8(e>>8,0),n.writeUInt8(e&255,0+1),n}function u(){for(var e=0;e<a;e++)d[e]=f(e)}v.exports={cache:d,generateCache:u,generateNumber:f}},{"safe-buffer":108}],87:[function(s,v,x){function i(){this.cmd=null,this.retain=!1,this.qos=0,this.dup=!1,this.length=-1,this.topic=null,this.payload=null}v.exports=i},{}],88:[function(s,v,x){var i=s("bl"),a=s("inherits"),d=s("events").EventEmitter,f=s("./packet"),u=s("./constants");function e(){if(!(this instanceof e))return new e;this._states=["_parseHeader","_parseLength","_parsePayload","_newPacket"],this._resetState()}a(e,d),e.prototype._resetState=function(){this.packet=new f,this.error=null,this._list=i(),this._stateCounter=0},e.prototype.parse=function(n){for(this.error&&this._resetState(),this._list.append(n);(this.packet.length!==-1||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},e.prototype._parseHeader=function(){var n=this._list.readUInt8(0);return this.packet.cmd=u.types[n>>u.CMD_SHIFT],this.packet.retain=(n&u.RETAIN_MASK)!==0,this.packet.qos=n>>u.QOS_SHIFT&u.QOS_MASK,this.packet.dup=(n&u.DUP_MASK)!==0,this._list.consume(1),!0},e.prototype._parseLength=function(){for(var n=0,o=1,c=0,l=!0,_;n<5&&(_=this._list.readUInt8(n++),c+=o*(_&u.LENGTH_MASK),o*=128,(_&u.LENGTH_FIN_MASK)!==0);)if(this._list.length<=n){l=!1;break}return l&&(this.packet.length=c,this._list.consume(n)),l},e.prototype._parsePayload=function(){var n=!1;if(this.packet.length===0||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"))}n=!0}return n},e.prototype._parseConnect=function(){var n,o,c,l,_,E,O={},m=this.packet;if(n=this._parseString(),n===null)return this._emitError(new Error("Cannot parse protocolId"));if(n!=="MQTT"&&n!=="MQIsdp")return this._emitError(new Error("Invalid protocolId"));if(m.protocolId=n,this._pos>=this._list.length)return this._emitError(new Error("Packet too short"));if(m.protocolVersion=this._list.readUInt8(this._pos),m.protocolVersion!==3&&m.protocolVersion!==4)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(O.username=this._list.readUInt8(this._pos)&u.USERNAME_MASK,O.password=this._list.readUInt8(this._pos)&u.PASSWORD_MASK,O.will=this._list.readUInt8(this._pos)&u.WILL_FLAG_MASK,O.will&&(m.will={},m.will.retain=(this._list.readUInt8(this._pos)&u.WILL_RETAIN_MASK)!==0,m.will.qos=(this._list.readUInt8(this._pos)&u.WILL_QOS_MASK)>>u.WILL_QOS_SHIFT),m.clean=(this._list.readUInt8(this._pos)&u.CLEAN_SESSION_MASK)!==0,this._pos++,m.keepalive=this._parseNum(),m.keepalive===-1)return this._emitError(new Error("Packet too short"));if(o=this._parseString(),o===null)return this._emitError(new Error("Packet too short"));if(m.clientId=o,O.will){if(c=this._parseString(),c===null)return this._emitError(new Error("Cannot parse will topic"));if(m.will.topic=c,l=this._parseBuffer(),l===null)return this._emitError(new Error("Cannot parse will payload"));m.will.payload=l}if(O.username){if(E=this._parseString(),E===null)return this._emitError(new Error("Cannot parse username"));m.username=E}if(O.password){if(_=this._parseBuffer(),_===null)return this._emitError(new Error("Cannot parse password"));m.password=_}return m},e.prototype._parseConnack=function(){var n=this.packet;if(this._list.length<2)return null;if(n.sessionPresent=!!(this._list.readUInt8(this._pos++)&u.SESSIONPRESENT_MASK),n.returnCode=this._list.readUInt8(this._pos),n.returnCode===-1)return this._emitError(new Error("Cannot parse return code"))},e.prototype._parsePublish=function(){var n=this.packet;if(n.topic=this._parseString(),n.topic===null)return this._emitError(new Error("Cannot parse topic"));n.qos>0&&!this._parseMessageId()||(n.payload=this._list.slice(this._pos,n.length))},e.prototype._parseSubscribe=function(){var n=this.packet,o,c;if(n.qos!==1)return this._emitError(new Error("Wrong subscribe header"));if(n.subscriptions=[],!!this._parseMessageId())for(;this._pos<n.length;){if(o=this._parseString(),o===null)return this._emitError(new Error("Cannot parse topic"));c=this._list.readUInt8(this._pos++),n.subscriptions.push({topic:o,qos:c})}},e.prototype._parseSuback=function(){if(this.packet.granted=[],!!this._parseMessageId())for(;this._pos<this.packet.length;)this.packet.granted.push(this._list.readUInt8(this._pos++))},e.prototype._parseUnsubscribe=function(){var n=this.packet;if(n.unsubscriptions=[],!!this._parseMessageId())for(;this._pos<n.length;){var o;if(o=this._parseString(),o===null)return this._emitError(new Error("Cannot parse topic"));n.unsubscriptions.push(o)}},e.prototype._parseUnsuback=function(){if(!this._parseMessageId())return this._emitError(new Error("Cannot parse messageId"))},e.prototype._parseMessageId=function(){var n=this.packet;return n.messageId=this._parseNum(),n.messageId===null?(this._emitError(new Error("Cannot parse messageId")),!1):!0},e.prototype._parseString=function(n){var o=this._parseNum(),c,l=o+this._pos;return o===-1||l>this._list.length||l>this.packet.length?null:(c=this._list.toString("utf8",this._pos,l),this._pos+=o,c)},e.prototype._parseBuffer=function(){var n=this._parseNum(),o,c=n+this._pos;return n===-1||c>this._list.length||c>this.packet.length?null:(o=this._list.slice(this._pos,c),this._pos+=n,o)},e.prototype._parseNum=function(){if(this._list.length-this._pos<2)return-1;var n=this._list.readUInt16BE(this._pos);return this._pos+=2,n},e.prototype._newPacket=function(){return this.packet&&(this._list.consume(this.packet.length),this.emit("packet",this.packet)),this.packet=new f,!0},e.prototype._emitError=function(n){this.error=n,this.emit("error",n)},v.exports=e},{"./constants":83,"./packet":87,bl:10,events:78,inherits:80}],89:[function(s,v,x){var i=s("./constants"),a=s("safe-buffer").Buffer,d=a.allocUnsafe(0),f=a.from([0]),u=s("./numbers"),e=s("process-nextick-args").nextTick,n=u.cache,o=u.generateNumber,c=u.generateCache,l=F,_=!0;function E(z,N){switch(N.cork&&(N.cork(),e(O,N)),_&&(_=!1,c()),z.cmd){case"connect":return m(z,N);case"connack":return P(z,N);case"publish":return R(z,N);case"puback":case"pubrec":case"pubrel":case"pubcomp":case"unsuback":return C(z,N);case"subscribe":return T(z,N);case"suback":return A(z,N);case"unsubscribe":return S(z,N);case"pingreq":case"pingresp":case"disconnect":return j(z,N);default:return N.emit("error",new Error("Unknown command")),!1}}Object.defineProperty(E,"cacheNumbers",{get:function(){return l===F},set:function(z){z?((!n||Object.keys(n).length===0)&&(_=!0),l=F):(_=!1,l=V)}});function O(z){z.uncork()}function m(z,N){var re=z||{},B=re.protocolId||"MQTT",k=re.protocolVersion||4,p=re.will,I=re.clean,U=re.keepalive||0,$=re.clientId||"",H=re.username,J=re.password;I===void 0&&(I=!0);var te=0;if(!B||typeof B!="string"&&!a.isBuffer(B))return N.emit("error",new Error("Invalid protocolId")),!1;if(te+=B.length+2,k!==3&&k!==4)return N.emit("error",new Error("Invalid protocol version")),!1;if(te+=1,(typeof $=="string"||a.isBuffer($))&&($||k===4)&&($||I))te+=$.length+2;else{if(k<4)return N.emit("error",new Error("clientId must be supplied before 3.1.1")),!1;if(I*1===0)return N.emit("error",new Error("clientId must be given if cleanSession set to 0")),!1}if(typeof U!="number"||U<0||U>65535||U%1!==0)return N.emit("error",new Error("Invalid keepalive")),!1;if(te+=2,te+=1,p){if(typeof p!="object")return N.emit("error",new Error("Invalid will")),!1;if(!p.topic||typeof p.topic!="string")return N.emit("error",new Error("Invalid will topic")),!1;if(te+=a.byteLength(p.topic)+2,p.payload&&p.payload)if(p.payload.length>=0)typeof p.payload=="string"?te+=a.byteLength(p.payload)+2:te+=p.payload.length+2;else return N.emit("error",new Error("Invalid will payload")),!1;else te+=2}var ne=!1;if(H!=null)if(Q(H))ne=!0,te+=a.byteLength(H)+2;else return N.emit("error",new Error("Invalid username")),!1;if(J!=null){if(!ne)return N.emit("error",new Error("Username is required to use password")),!1;if(Q(J))te+=K(J)+2;else return N.emit("error",new Error("Invalid password")),!1}N.write(i.CONNECT_HEADER),g(N,te),Z(N,B),N.write(k===4?i.VERSION4:i.VERSION3);var ie=0;return ie|=H!=null?i.USERNAME_MASK:0,ie|=J!=null?i.PASSWORD_MASK:0,ie|=p&&p.retain?i.WILL_RETAIN_MASK:0,ie|=p&&p.qos?p.qos<<i.WILL_QOS_SHIFT:0,ie|=p?i.WILL_FLAG_MASK:0,ie|=I?i.CLEAN_SESSION_MASK:0,N.write(a.from([ie])),l(N,U),Z(N,$),p&&(D(N,p.topic),Z(N,p.payload)),H!=null&&Z(N,H),J!=null&&Z(N,J),!0}function P(z,N){var re=z||{},B=re.returnCode;return typeof B!="number"?(N.emit("error",new Error("Invalid return code")),!1):(N.write(i.CONNACK_HEADER),g(N,2),N.write(z.sessionPresent?i.SESSIONPRESENT_HEADER:f),N.write(a.from([B])))}function R(z,N){var re=z||{},B=re.qos||0,k=re.retain?i.RETAIN_MASK:0,p=re.topic,I=re.payload||d,U=re.messageId,$=0;if(typeof p=="string")$+=a.byteLength(p)+2;else if(a.isBuffer(p))$+=p.length+2;else return N.emit("error",new Error("Invalid topic")),!1;return a.isBuffer(I)?$+=I.length:$+=a.byteLength(I),B&&typeof U!="number"?(N.emit("error",new Error("Invalid messageId")),!1):(B&&($+=2),N.write(i.PUBLISH_HEADER[B][z.dup?1:0][k?1:0]),g(N,$),l(N,K(p)),N.write(p),B>0&&l(N,U),N.write(I))}function C(z,N){var re=z||{},B=re.cmd||"puback",k=re.messageId,p=re.dup&&B==="pubrel"?i.DUP_MASK:0,I=0;return B==="pubrel"&&(I=1),typeof k!="number"?(N.emit("error",new Error("Invalid messageId")),!1):(N.write(i.ACKS[B][I][p][0]),g(N,2),l(N,k))}function T(z,N){var 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