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Error("Cannot parse password"));o.password=r}return this.settings=o,a("_parseConnect: complete"),o}_parseConnack(){a("_parseConnack");const e=this.packet;if(this._list.length<1)return null;if(e.sessionPresent=!!(this._list.readUInt8(this._pos++)&s.SESSIONPRESENT_MASK),5===this.settings.protocolVersion)this._list.length>=2?e.reasonCode=this._list.readUInt8(this._pos++):e.reasonCode=0;else{if(this._list.length<2)return null;e.returnCode=this._list.readUInt8(this._pos++)}if(-1===e.returnCode||-1===e.reasonCode)return this._emitError(new Error("Cannot parse return code"));if(5===this.settings.protocolVersion){const t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t)}a("_parseConnack: complete")}_parsePublish(){a("_parsePublish");const e=this.packet;if(e.topic=this._parseString(),null===e.topic)return this._emitError(new Error("Cannot parse topic"));if(!(e.qos>0)||this._parseMessageId()){if(5===this.settings.protocolVersion){const t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t)}e.payload=this._list.slice(this._pos,e.length),a("_parsePublish: payload from buffer list: %o",e.payload)}}_parseSubscribe(){a("_parseSubscribe");const e=this.packet;let t,r,n,i,o,l,u;if(1!==e.qos)return this._emitError(new Error("Wrong subscribe header"));if(e.subscriptions=[],this._parseMessageId()){if(5===this.settings.protocolVersion){const t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t)}while(this._pos<e.length){if(t=this._parseString(),null===t)return this._emitError(new Error("Cannot parse topic"));if(this._pos>=e.length)return this._emitError(new Error("Malformed Subscribe 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t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t)}while(this._pos<e.length){const t=this._parseString();if(null===t)return this._emitError(new Error("Cannot parse topic"));a("_parseUnsubscribe: push topic `%s` to unsubscriptions",t),e.unsubscriptions.push(t)}}}_parseUnsuback(){a("_parseUnsuback");const e=this.packet;if(!this._parseMessageId())return this._emitError(new Error("Cannot parse messageId"));if(5===this.settings.protocolVersion){const t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t),e.granted=[];while(this._pos<this.packet.length)this.packet.granted.push(this._list.readUInt8(this._pos++))}}_parseConfirmation(){a("_parseConfirmation: packet.cmd: `%s`",this.packet.cmd);const e=this.packet;if(this._parseMessageId(),5===this.settings.protocolVersion&&(e.length>2?(e.reasonCode=this._parseByte(),a("_parseConfirmation: packet.reasonCode `%d`",e.reasonCode)):e.reasonCode=0,e.length>3)){const t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t)}return!0}_parseDisconnect(){const e=this.packet;if(a("_parseDisconnect"),5===this.settings.protocolVersion){this._list.length>0?e.reasonCode=this._parseByte():e.reasonCode=0;const t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t)}return a("_parseDisconnect result: true"),!0}_parseAuth(){a("_parseAuth");const e=this.packet;if(5!==this.settings.protocolVersion)return this._emitError(new Error("Not supported auth packet for this version MQTT"));e.reasonCode=this._parseByte();const t=this._parseProperties();return Object.getOwnPropertyNames(t).length&&(e.properties=t),a("_parseAuth: result: true"),!0}_parseMessageId(){const e=this.packet;return e.messageId=this._parseNum(),null===e.messageId?(this._emitError(new Error("Cannot parse messageId")),!1):(a("_parseMessageId: packet.messageId %d",e.messageId),!0)}_parseString(e){const 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e=this._parseVarByteNum(),t=this._pos,r=t+e,n={};while(this._pos<r){const e=this._parseByte();if(!e)return this._emitError(new Error("Cannot parse property code type")),!1;const t=s.propertiesCodes[e];if(!t)return this._emitError(new Error("Unknown property")),!1;if("userProperties"!==t)n[t]?(Array.isArray(n[t])||(n[t]=[n[t]]),n[t].push(this._parseByType(s.propertiesTypes[t]))):n[t]=this._parseByType(s.propertiesTypes[t]);else{n[t]||(n[t]=Object.create(null));const e=this._parseByType(s.propertiesTypes[t]);if(n[t][e.name])if(Array.isArray(n[t][e.name]))n[t][e.name].push(e.value);else{const r=n[t][e.name];n[t][e.name]=[r],n[t][e.name].push(e.value)}else n[t][e.name]=e.value}}return n}_newPacket(){return a("_newPacket"),this.packet&&(this._list.consume(this.packet.length),a("_newPacket: parser emit packet: packet.cmd: %s, packet.payload: %s, packet.length: %d",this.packet.cmd,this.packet.payload,this.packet.length),this.emit("packet",this.packet)),a("_newPacket: new 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The message is skipped and removed.",i.messageId),t())}m("connect :: sending queued packets"),t()})),this.on("close",(function(){m("close :: connected set to `false`"),this.connected=!1,m("close :: clearing connackTimer"),clearTimeout(this.connackTimer),m("close :: clearing ping timer"),null!==n.pingTimer&&(n.pingTimer.clear(),n.pingTimer=null),this.topicAliasRecv&&this.topicAliasRecv.clear(),m("close :: calling _setupReconnect"),this._setupReconnect()})),i.call(this),m("MqttClient :: setting up stream"),this._setupStream()}h(O,i),O.prototype._setupStream=function(){const e=this,t=new c,r=l.parser(this.options);let n=null;const i=[];function o(){if(i.length)b(s);else{const e=n;n=null,e()}}function s(){m("work :: getting next packet in queue");const t=i.shift();if(t)m("work :: packet pulled from queue"),e._handlePacket(t,o);else{m("work :: no packets in queue");const e=n;n=null,m("work :: done flag is %s",!!e),e&&e()}}function a(t){m("streamErrorHandler :: error",t.message),w.includes(t.code)?(m("streamErrorHandler :: emitting error"),e.emit("error",t)):T(t)}m("_setupStream :: calling method to clear reconnect"),this._clearReconnect(),m("_setupStream :: using streamBuilder provided to client to create stream"),this.stream=this.streamBuilder(this),r.on("packet",(function(e){m("parser :: on packet push to packets array."),i.push(e)})),t._write=function(e,t,i){n=i,m("writable stream :: parsing buffer"),r.parse(e),s()},m("_setupStream :: pipe stream to writable stream"),this.stream.pipe(t),this.stream.on("error",a),this.stream.on("close",(function(){m("(%s)stream :: on close",e.options.clientId),x(e.outgoing),m("stream: emit close to MqttClient"),e.emit("close")})),m("_setupStream: sending packet `connect`");const u=Object.create(this.options);if(u.cmd="connect",this.topicAliasRecv&&(u.properties||(u.properties={}),this.topicAliasRecv&&(u.properties.topicAliasMaximum=this.topicAliasRecv.max)),C(this,u),r.on("error",this.emit.bind(this,"error")),this.options.properties){if(!this.options.properties.authenticationMethod&&this.options.properties.authenticationData)return e.end(()=>this.emit("error",new Error("Packet has no Authentication Method"))),this;if(this.options.properties.authenticationMethod&&this.options.authPacket&&"object"===typeof this.options.authPacket){const e=g({cmd:"auth",reasonCode:0},this.options.authPacket);C(this,e)}}this.stream.setMaxListeners(1e3),clearTimeout(this.connackTimer),this.connackTimer=setTimeout((function(){m("!!connectTimeout hit!! Calling _cleanUp with force `true`"),e._cleanUp(!0)}),this.options.connectTimeout)},O.prototype._handlePacket=function(e,t){const r=this.options;if(5===r.protocolVersion&&r.properties&&r.properties.maximumPacketSize&&r.properties.maximumPacketSize<e.length)return this.emit("error",new Error("exceeding packets size "+e.cmd)),this.end({reasonCode:149,properties:{reasonString:"Maximum packet size was exceeded"}}),this;switch(m("_handlePacket :: emitting packetreceive"),this.emit("packetreceive",e),e.cmd){case"publish":this._handlePublish(e,t);break;case"puback":case"pubrec":case"pubcomp":case"suback":case"unsuback":this._handleAck(e),t();break;case"pubrel":this._handlePubrel(e,t);break;case"connack":this._handleConnack(e),t();break;case"auth":this._handleAuth(e),t();break;case"pingresp":this._handlePingresp(e),t();break;case"disconnect":this._handleDisconnect(e),t();break;default:break}},O.prototype._checkDisconnecting=function(e){return this.disconnecting&&(e&&e!==T?e(new Error("client disconnecting")):this.emit("error",new Error("client disconnecting"))),this.disconnecting},O.prototype.publish=function(e,t,r,n){m("publish :: message `%s` to topic `%s`",t,e);const i=this.options;"function"===typeof r&&(n=r,r=null);const o={qos:0,retain:!1,dup:!1};if(r=g(o,r),this._checkDisconnecting(n))return this;const s=this,a=function(){let o=0;if((1===r.qos||2===r.qos)&&(o=s._nextId(),null===o))return m("No messageId left"),!1;const a={cmd:"publish",topic:e,payload:t,qos:r.qos,retain:r.retain,messageId:o,dup:r.dup};switch(5===i.protocolVersion&&(a.properties=r.properties),m("publish :: qos",r.qos),r.qos){case 1:case 2:s.outgoing[a.messageId]={volatile:!1,cb:n||T},m("MqttClient:publish: packet cmd: %s",a.cmd),s._sendPacket(a,void 0,r.cbStorePut);break;default:m("MqttClient:publish: packet cmd: %s",a.cmd),s._sendPacket(a,n,r.cbStorePut);break}return!0};return(this._storeProcessing||this._storeProcessingQueue.length>0||!a())&&this._storeProcessingQueue.push({invoke:a,cbStorePut:r.cbStorePut,callback:n}),this},O.prototype.subscribe=function(){const e=this,t=new Array(arguments.length);for(let h=0;h<arguments.length;h++)t[h]=arguments[h];const r=[];let n=t.shift();const i=n.resubscribe;let o=t.pop()||T,s=t.pop();const a=this.options.protocolVersion;delete n.resubscribe,"string"===typeof n&&(n=[n]),"function"!==typeof o&&(s=o,o=T);const l=d.validateTopics(n);if(null!==l)return y(o,new Error("Invalid topic "+l)),this;if(this._checkDisconnecting(o))return m("subscribe: discconecting true"),this;const u={qos:0};if(5===a&&(u.nl=!1,u.rap=!1,u.rh=0),s=g(u,s),Array.isArray(n)?n.forEach((function(t){if(m("subscribe: array topic %s",t),!Object.prototype.hasOwnProperty.call(e._resubscribeTopics,t)||e._resubscribeTopics[t].qos<s.qos||i){const e={topic:t,qos:s.qos};5===a&&(e.nl=s.nl,e.rap=s.rap,e.rh=s.rh,e.properties=s.properties),m("subscribe: pushing topic `%s` and qos `%s` to subs list",e.topic,e.qos),r.push(e)}})):Object.keys(n).forEach((function(t){if(m("subscribe: object topic %s",t),!Object.prototype.hasOwnProperty.call(e._resubscribeTopics,t)||e._resubscribeTopics[t].qos<n[t].qos||i){const e={topic:t,qos:n[t].qos};5===a&&(e.nl=n[t].nl,e.rap=n[t].rap,e.rh=n[t].rh,e.properties=s.properties),m("subscribe: pushing `%s` to subs list",e),r.push(e)}})),!r.length)return o(null,[]),this;const c=function(){const t=e._nextId();if(null===t)return m("No messageId left"),!1;const n={cmd:"subscribe",subscriptions:r,qos:1,retain:!1,dup:!1,messageId:t};if(s.properties&&(n.properties=s.properties),e.options.resubscribe){m("subscribe :: resubscribe true");const t=[];r.forEach((function(r){if(e.options.reconnectPeriod>0){const n={qos:r.qos};5===a&&(n.nl=r.nl||!1,n.rap=r.rap||!1,n.rh=r.rh||0,n.properties=r.properties),e._resubscribeTopics[r.topic]=n,t.push(r.topic)}})),e.messageIdToTopic[n.messageId]=t}return e.outgoing[n.messageId]={volatile:!0,cb:function(e,t){if(!e){const e=t.granted;for(let t=0;t<e.length;t+=1)r[t].qos=e[t]}o(e,r)}},m("subscribe :: call _sendPacket"),e._sendPacket(n),!0};return(this._storeProcessing||this._storeProcessingQueue.length>0||!c())&&this._storeProcessingQueue.push({invoke:c,callback:o}),this},O.prototype.unsubscribe=function(){const e=this,t=new Array(arguments.length);for(let a=0;a<arguments.length;a++)t[a]=arguments[a];let r=t.shift(),n=t.pop()||T,i=t.pop();"string"===typeof r&&(r=[r]),"function"!==typeof n&&(i=n,n=T);const o=d.validateTopics(r);if(null!==o)return y(n,new Error("Invalid topic "+o)),this;if(e._checkDisconnecting(n))return this;const s=function(){const t=e._nextId();if(null===t)return m("No messageId left"),!1;const o={cmd:"unsubscribe",qos:1,messageId:t};return"string"===typeof r?o.unsubscriptions=[r]:Array.isArray(r)&&(o.unsubscriptions=r),e.options.resubscribe&&o.unsubscriptions.forEach((function(t){delete e._resubscribeTopics[t]})),"object"===typeof i&&i.properties&&(o.properties=i.properties),e.outgoing[o.messageId]={volatile:!0,cb:n},m("unsubscribe: call _sendPacket"),e._sendPacket(o),!0};return(this._storeProcessing||this._storeProcessingQueue.length>0||!s())&&this._storeProcessingQueue.push({invoke:s,callback:n}),this},O.prototype.end=function(e,t,r){const n=this;function i(){m("end :: closeStores: closing incoming and outgoing stores"),n.disconnected=!0,n.incomingStore.close((function(e){n.outgoingStore.close((function(t){if(m("end :: closeStores: emitting end"),n.emit("end"),r){const n=e||t;m("end :: closeStores: invoking callback with args"),r(n)}}))})),n._deferredReconnect&&n._deferredReconnect()}function o(){m("end :: (%s) :: finish :: calling _cleanUp with force %s",n.options.clientId,e),n._cleanUp(e,()=>{m("end :: finish :: calling process.nextTick on closeStores"),b(i.bind(n))},t)}return m("end :: (%s)",this.options.clientId),null!=e&&"boolean"===typeof e||(r=t||T,t=e,e=!1,"object"!==typeof t&&(r=t,t=null,"function"!==typeof r&&(r=T))),"object"!==typeof t&&(r=t,t=null),m("end :: cb? %s",!!r),r=r||T,this.disconnecting?(r(),this):(this._clearReconnect(),this.disconnecting=!0,!e&&Object.keys(this.outgoing).length>0?(m("end :: (%s) :: calling finish in 10ms once outgoing is empty",n.options.clientId),this.once("outgoingEmpty",setTimeout.bind(null,o,10))):(m("end :: (%s) :: immediately calling finish",n.options.clientId),o()),this)},O.prototype.removeOutgoingMessage=function(e){const t=this.outgoing[e]?this.outgoing[e].cb:null;return delete this.outgoing[e],this.outgoingStore.del({messageId:e},(function(){t(new Error("Message removed"))})),this},O.prototype.reconnect=function(e){m("client reconnect");const t=this,r=function(){e?(t.options.incomingStore=e.incomingStore,t.options.outgoingStore=e.outgoingStore):(t.options.incomingStore=null,t.options.outgoingStore=null),t.incomingStore=t.options.incomingStore||new o,t.outgoingStore=t.options.outgoingStore||new o,t.disconnecting=!1,t.disconnected=!1,t._deferredReconnect=null,t._reconnect()};return this.disconnecting&&!this.disconnected?this._deferredReconnect=r:r(),this},O.prototype._reconnect=function(){m("_reconnect: emitting reconnect to client"),this.emit("reconnect"),this.connected?(this.end(()=>{this._setupStream()}),m("client already connected. disconnecting first.")):(m("_reconnect: calling _setupStream"),this._setupStream())},O.prototype._setupReconnect=function(){const e=this;!e.disconnecting&&!e.reconnectTimer&&e.options.reconnectPeriod>0?(this.reconnecting||(m("_setupReconnect :: emit `offline` state"),this.emit("offline"),m("_setupReconnect :: set `reconnecting` to `true`"),this.reconnecting=!0),m("_setupReconnect :: setting reconnectTimer for %d ms",e.options.reconnectPeriod),e.reconnectTimer=setInterval((function(){m("reconnectTimer :: reconnect triggered!"),e._reconnect()}),e.options.reconnectPeriod)):m("_setupReconnect :: doing nothing...")},O.prototype._clearReconnect=function(){m("_clearReconnect : clearing reconnect timer"),this.reconnectTimer&&(clearInterval(this.reconnectTimer),this.reconnectTimer=null)},O.prototype._cleanUp=function(e,t){const r=arguments[2];if(t&&(m("_cleanUp :: done callback provided for on stream close"),this.stream.on("close",t)),m("_cleanUp :: forced? %s",e),e)0===this.options.reconnectPeriod&&this.options.clean&&R(this.outgoing),m("_cleanUp :: (%s) :: destroying stream",this.options.clientId),this.stream.destroy();else{const e=g({cmd:"disconnect"},r);m("_cleanUp :: (%s) :: call _sendPacket with disconnect packet",this.options.clientId),this._sendPacket(e,y.bind(null,this.stream.end.bind(this.stream)))}this.disconnecting||(m("_cleanUp :: client not disconnecting. Clearing and resetting reconnect."),this._clearReconnect(),this._setupReconnect()),null!==this.pingTimer&&(m("_cleanUp :: clearing pingTimer"),this.pingTimer.clear(),this.pingTimer=null),t&&!this.connected&&(m("_cleanUp :: (%s) :: removing stream `done` callback `close` listener",this.options.clientId),this.stream.removeListener("close",t),t())},O.prototype._sendPacket=function(e,t,r){m("_sendPacket :: (%s) ::  start",this.options.clientId),r=r||T,t=t||T;const n=E(this,e);if(n)t(n);else{if(!this.connected)return"auth"===e.cmd?(this._shiftPingInterval(),void C(this,e,t)):(m("_sendPacket :: client not connected. Storing packet offline."),void this._storePacket(e,t,r));switch(this._shiftPingInterval(),e.cmd){case"publish":break;case"pubrel":return void A(this,e,t,r);default:return void C(this,e,t)}switch(e.qos){case 2:case 1:A(this,e,t,r);break;case 0:default:C(this,e,t);break}m("_sendPacket :: (%s) ::  end",this.options.clientId)}},O.prototype._storePacket=function(e,t,r){m("_storePacket :: packet: %o",e),m("_storePacket :: cb? %s",!!t),r=r||T;let n=e;if("publish"===n.cmd){n=p(e);const r=k(this,n);if(r)return t&&t(r)}0===(n.qos||0)&&this.queueQoSZero||"publish"!==n.cmd?this.queue.push({packet:n,cb:t}):n.qos>0?(t=this.outgoing[n.messageId]?this.outgoing[n.messageId].cb:null,this.outgoingStore.put(n,(function(e){if(e)return t&&t(e);r()}))):t&&t(new Error("No connection to broker"))},O.prototype._setupPingTimer=function(){m("_setupPingTimer :: keepalive %d (seconds)",this.options.keepalive);const e=this;!this.pingTimer&&this.options.keepalive&&(this.pingResp=!0,this.pingTimer=f((function(){e._checkPing()}),1e3*this.options.keepalive))},O.prototype._shiftPingInterval=function(){this.pingTimer&&this.options.keepalive&&this.options.reschedulePings&&this.pingTimer.reschedule(1e3*this.options.keepalive)},O.prototype._checkPing=function(){m("_checkPing :: checking ping..."),this.pingResp?(m("_checkPing :: ping response received. Clearing flag and sending `pingreq`"),this.pingResp=!1,this._sendPacket({cmd:"pingreq"})):(m("_checkPing :: calling _cleanUp with force true"),this._cleanUp(!0))},O.prototype._handlePingresp=function(){this.pingResp=!0},O.prototype._handleConnack=function(e){m("_handleConnack");const t=this.options,r=t.protocolVersion,n=5===r?e.reasonCode:e.returnCode;if(clearTimeout(this.connackTimer),delete this.topicAliasSend,e.properties){if(e.properties.topicAliasMaximum){if(e.properties.topicAliasMaximum>65535)return void this.emit("error",new Error("topicAliasMaximum from broker is out of range"));e.properties.topicAliasMaximum>0&&(this.topicAliasSend=new a(e.properties.topicAliasMaximum))}e.properties.serverKeepAlive&&t.keepalive&&(t.keepalive=e.properties.serverKeepAlive,this._shiftPingInterval()),e.properties.maximumPacketSize&&(t.properties||(t.properties={}),t.properties.maximumPacketSize=e.properties.maximumPacketSize)}if(0===n)this.reconnecting=!1,this._onConnect(e);else if(n>0){const e=new Error("Connection refused: "+_[n]);e.code=n,this.emit("error",e)}},O.prototype._handleAuth=function(e){const t=this.options,r=t.protocolVersion,n=5===r?e.reasonCode:e.returnCode;if(5!==r){const e=new Error("Protocol error: Auth packets are only supported in MQTT 5. 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