osh-js/source/core/mqtt/mqtt.min.js

OSH javascript Toolkit

!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{("undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this).mqtt=e()}}(function(){return function(){return function e(t,r,n){function i(s,a){if(!r[s]){if(!t[s]){var l="function"==typeof require&&require;if(!a&&l)return l(s,!0);if(o)return o(s,!0);var u=new Error("Cannot find module '"+s+"'");throw u.code="MODULE_NOT_FOUND",u}var c=r[s]={exports:{}};t[s][0].call(c.exports,function(e){return i(t[s][1][e]||e)},c,c.exports,e,t,r,n)}return r[s].exports}for(var o="function"==typeof require&&require,s=0;s<n.length;s++)i(n[s]);return i}}()({1:[function(e,t,r){(function(r,n){(function(){"use strict";const i=e("events").EventEmitter,o=e("./store"),s=e("./topic-alias-recv"),a=e("./topic-alias-send"),l=e("mqtt-packet"),u=e("./default-message-id-provider"),c=e("readable-stream").Writable,h=e("inherits"),f=e("reinterval"),p=e("rfdc/default"),d=e("./validations"),g=e("xtend"),y=e("debug")("mqttjs:client"),b=r?r.nextTick:function(e){setTimeout(e,0)},m=n.setImmediate||function(e){b(e)},v={keepalive:60,reschedulePings:!0,protocolId:"MQTT",protocolVersion:4,reconnectPeriod:1e3,connectTimeout:3e4,clean:!0,resubscribe:!0},w=["ECONNREFUSED","EADDRINUSE","ECONNRESET","ENOTFOUND"],_={0:"",1:"Unacceptable protocol version",2:"Identifier rejected",3:"Server unavailable",4:"Bad username or password",5:"Not authorized",16:"No matching subscribers",17:"No subscription existed",128:"Unspecified error",129:"Malformed Packet",130:"Protocol Error",131:"Implementation specific error",132:"Unsupported Protocol Version",133:"Client Identifier not valid",134:"Bad User Name or Password",135:"Not authorized",136:"Server unavailable",137:"Server busy",138:"Banned",139:"Server shutting down",140:"Bad authentication method",141:"Keep Alive timeout",142:"Session taken over",143:"Topic Filter invalid",144:"Topic Name invalid",145:"Packet identifier in use",146:"Packet Identifier not found",147:"Receive Maximum exceeded",148:"Topic Alias invalid",149:"Packet too large",150:"Message rate too high",151:"Quota exceeded",152:"Administrative action",153:"Payload format invalid",154:"Retain not supported",155:"QoS not supported",156:"Use another server",157:"Server moved",158:"Shared Subscriptions not supported",159:"Connection rate exceeded",160:"Maximum connect time",161:"Subscription Identifiers not supported",162:"Wildcard Subscriptions not supported"};function k(e,t){let r;t.properties&&(r=t.properties.topicAlias);let n=t.topic.toString();if(0===n.length){if(void 0===r)return new Error("Unregistered Topic Alias");if(void 0===(n=e.topicAliasSend.getTopicByAlias(r)))return new Error("Unregistered Topic Alias");t.topic=n}r&&delete t.properties.topicAlias}function S(e,t,r){y("sendPacket :: packet: %O",t),y("sendPacket :: emitting `packetsend`"),e.emit("packetsend",t),y("sendPacket :: writing to stream");const n=l.writeToStream(t,e.stream,e.options);y("sendPacket :: writeToStream result %s",n),!n&&r?(y("sendPacket :: handle events on `drain` once through callback."),e.stream.once("drain",r)):r&&(y("sendPacket :: invoking cb"),r())}function E(e,t,r,n){y("storeAndSend :: store packet with cmd %s to outgoingStore",t.cmd);let i,o=t;if("publish"===o.cmd&&(o=p(t),i=k(e,o)))return r&&r(i);e.outgoingStore.put(o,function(i){if(i)return r&&r(i);n(),S(e,t,r)})}function C(e){y("nop ::",e)}function T(e,t){let r;const n=this;if(!(this instanceof T))return new T(e,t);for(r in this.options=t||{},v)void 0===this.options[r]?this.options[r]=v[r]:this.options[r]=t[r];y("MqttClient :: options.protocol",t.protocol),y("MqttClient :: options.protocolVersion",t.protocolVersion),y("MqttClient :: options.username",t.username),y("MqttClient :: options.keepalive",t.keepalive),y("MqttClient :: options.reconnectPeriod",t.reconnectPeriod),y("MqttClient :: options.rejectUnauthorized",t.rejectUnauthorized),y("MqttClient :: options.topicAliasMaximum",t.topicAliasMaximum),this.options.clientId="string"==typeof t.clientId?t.clientId:"mqttjs_"+Math.random().toString(16).substr(2,8),y("MqttClient :: clientId",this.options.clientId),this.options.customHandleAcks=5===t.protocolVersion&&t.customHandleAcks?t.customHandleAcks:function(){arguments[3](0)},this.streamBuilder=e,this.messageIdProvider=void 0===this.options.messageIdProvider?new u:this.options.messageIdProvider,this.outgoingStore=t.outgoingStore||new o,this.incomingStore=t.incomingStore||new o,this.queueQoSZero=void 0===t.queueQoSZero||t.queueQoSZero,this._resubscribeTopics={},this.messageIdToTopic={},this.pingTimer=null,this.connected=!1,this.disconnecting=!1,this.queue=[],this.connackTimer=null,this.reconnectTimer=null,this._storeProcessing=!1,this._packetIdsDuringStoreProcessing={},this._storeProcessingQueue=[],this.outgoing={},this._firstConnection=!0,t.topicAliasMaximum>0&&(t.topicAliasMaximum>65535?y("MqttClient :: options.topicAliasMaximum is out of range"):this.topicAliasRecv=new s(t.topicAliasMaximum)),this.on("connect",function(){const e=this.queue;y("connect :: sending queued packets"),function t(){const r=e.shift();y("deliver :: entry %o",r);let i=null;if(!r)return void n._resubscribe();i=r.packet,y("deliver :: call _sendPacket for %o",i);let o=!0;i.messageId&&0!==i.messageId&&(n.messageIdProvider.register(i.messageId)||(o=!1)),o?n._sendPacket(i,function(e){r.cb&&r.cb(e),t()}):(y("messageId: %d has already used. The message is skipped and removed.",i.messageId),t())}()}),this.on("close",function(){y("close :: connected set to `false`"),this.connected=!1,y("close :: clearing connackTimer"),clearTimeout(this.connackTimer),y("close :: clearing ping timer"),null!==n.pingTimer&&(n.pingTimer.clear(),n.pingTimer=null),this.topicAliasRecv&&this.topicAliasRecv.clear(),y("close :: calling _setupReconnect"),this._setupReconnect()}),i.call(this),y("MqttClient :: setting up stream"),this._setupStream()}h(T,i),T.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(){y("work :: getting next packet in queue");const t=i.shift();if(t)y("work :: packet pulled from queue"),e._handlePacket(t,o);else{y("work :: no packets in queue");const e=n;n=null,y("work :: done flag is %s",!!e),e&&e()}}y("_setupStream :: calling method to clear reconnect"),this._clearReconnect(),y("_setupStream :: using streamBuilder provided to client to create stream"),this.stream=this.streamBuilder(this),r.on("packet",function(e){y("parser :: on packet push to packets array."),i.push(e)}),t._write=function(e,t,i){n=i,y("writable stream :: parsing buffer"),r.parse(e),s()},y("_setupStream :: pipe stream to writable stream"),this.stream.pipe(t),this.stream.on("error",function(t){y("streamErrorHandler :: error",t.message),w.includes(t.code)?(y("streamErrorHandler :: emitting error"),e.emit("error",t)):C(t)}),this.stream.on("close",function(){var t;y("(%s)stream :: on close",e.options.clientId),(t=e.outgoing)&&(y("flushVolatile :: deleting volatile messages from the queue and setting their callbacks as error function"),Object.keys(t).forEach(function(e){t[e].volatile&&"function"==typeof t[e].cb&&(t[e].cb(new Error("Connection closed")),delete t[e])})),y("stream: emit close to MqttClient"),e.emit("close")}),y("_setupStream: sending packet `connect`");const a=Object.create(this.options);if(a.cmd="connect",this.topicAliasRecv&&(a.properties||(a.properties={}),this.topicAliasRecv&&(a.properties.topicAliasMaximum=this.topicAliasRecv.max)),S(this,a),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){S(this,g({cmd:"auth",reasonCode:0},this.options.authPacket))}}this.stream.setMaxListeners(1e3),clearTimeout(this.connackTimer),this.connackTimer=setTimeout(function(){y("!!connectTimeout hit!! Calling _cleanUp with force `true`"),e._cleanUp(!0)},this.options.connectTimeout)},T.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(y("_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()}},T.prototype._checkDisconnecting=function(e){return this.disconnecting&&(e?e(new Error("client disconnecting")):this.emit("error",new Error("client disconnecting"))),this.disconnecting},T.prototype.publish=function(e,t,r,n){y("publish :: message `%s` to topic `%s`",t,e);const i=this.options;"function"==typeof r&&(n=r,r=null);if(r=g({qos:0,retain:!1,dup:!1},r),this._checkDisconnecting(n))return this;const o=this,s=function(){let s=0;if((1===r.qos||2===r.qos)&&null===(s=o._nextId()))return y("No messageId left"),!1;const a={cmd:"publish",topic:e,payload:t,qos:r.qos,retain:r.retain,messageId:s,dup:r.dup};switch(5===i.protocolVersion&&(a.properties=r.properties),y("publish :: qos",r.qos),r.qos){case 1:case 2:o.outgoing[a.messageId]={volatile:!1,cb:n||C},y("MqttClient:publish: packet cmd: %s",a.cmd),o._sendPacket(a,void 0,r.cbStorePut);break;default:y("MqttClient:publish: packet cmd: %s",a.cmd),o._sendPacket(a,n,r.cbStorePut)}return!0};return(this._storeProcessing||this._storeProcessingQueue.length>0||!s())&&this._storeProcessingQueue.push({invoke:s,cbStorePut:r.cbStorePut,callback:n}),this},T.prototype.subscribe=function(){const e=this,t=new Array(arguments.length);for(let e=0;e<arguments.length;e++)t[e]=arguments[e];const r=[];let n=t.shift();const i=n.resubscribe;let o=t.pop()||C,s=t.pop();const a=this.options.protocolVersion;delete n.resubscribe,"string"==typeof n&&(n=[n]),"function"!=typeof o&&(s=o,o=C);const l=d.validateTopics(n);if(null!==l)return m(o,new Error("Invalid topic "+l)),this;if(this._checkDisconnecting(o))return y("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(y("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),y("subscribe: pushing topic `%s` and qos `%s` to subs list",e.topic,e.qos),r.push(e)}}):Object.keys(n).forEach(function(t){if(y("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),y("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 y("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){y("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)}},y("subscribe :: call _sendPacket"),e._sendPacket(n),!0};return(this._storeProcessing||this._storeProcessingQueue.length>0||!c())&&this._storeProcessingQueue.push({invoke:c,callback:o}),this},T.prototype.unsubscribe=function(){const e=this,t=new Array(arguments.length);for(let e=0;e<arguments.length;e++)t[e]=arguments[e];let r=t.shift(),n=t.pop()||C,i=t.pop();"string"==typeof r&&(r=[r]),"function"!=typeof n&&(i=n,n=C);const o=d.validateTopics(r);if(null!==o)return m(n,new Error("Invalid topic "+o)),this;if(e._checkDisconnecting(n))return this;const s=function(){const t=e._nextId();if(null===t)return y("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},y("unsubscribe: call _sendPacket"),e._sendPacket(o),!0};return(this._storeProcessing||this._storeProcessingQueue.length>0||!s())&&this._storeProcessingQueue.push({invoke:s,callback:n}),this},T.prototype.end=function(e,t,r){const n=this;function i(){y("end :: (%s) :: finish :: calling _cleanUp with force %s",n.options.clientId,e),n._cleanUp(e,()=>{y("end :: finish :: calling process.nextTick on closeStores"),b(function(){y("end :: closeStores: closing incoming and outgoing stores"),n.disconnected=!0,n.incomingStore.close(function(e){n.outgoingStore.close(function(t){if(y("end :: closeStores: emitting end"),n.emit("end"),r){const n=e||t;y("end :: closeStores: invoking callback with args"),r(n)}})}),n._deferredReconnect&&n._deferredReconnect()}.bind(n))},t)}return y("end :: (%s)",this.options.clientId),null!=e&&"boolean"==typeof e||(r=t||C,t=e,e=!1,"object"!=typeof t&&(r=t,t=null,"function"!=typeof r&&(r=C))),"object"!=typeof t&&(r=t,t=null),y("end :: cb? %s",!!r),r=r||C,this.disconnecting?(r(),this):(this._clearReconnect(),this.disconnecting=!0,!e&&Object.keys(this.outgoing).length>0?(y("end :: (%s) :: calling finish in 10ms once outgoing is empty",n.options.clientId),this.once("outgoingEmpty",setTimeout.bind(null,i,10))):(y("end :: (%s) :: immediately calling finish",n.options.clientId),i()),this)},T.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},T.prototype.reconnect=function(e){y("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},T.prototype._reconnect=function(){y("_reconnect: emitting reconnect to client"),this.emit("reconnect"),this.connected?(this.end(()=>{this._setupStream()}),y("client already connected. disconnecting first.")):(y("_reconnect: calling _setupStream"),this._setupStream())},T.prototype._setupReconnect=function(){const e=this;!e.disconnecting&&!e.reconnectTimer&&e.options.reconnectPeriod>0?(this.reconnecting||(y("_setupReconnect :: emit `offline` state"),this.emit("offline"),y("_setupReconnect :: set `reconnecting` to `true`"),this.reconnecting=!0),y("_setupReconnect :: setting reconnectTimer for %d ms",e.options.reconnectPeriod),e.reconnectTimer=setInterval(function(){y("reconnectTimer :: reconnect triggered!"),e._reconnect()},e.options.reconnectPeriod)):y("_setupReconnect :: doing nothing...")},T.prototype._clearReconnect=function(){y("_clearReconnect : clearing reconnect timer"),this.reconnectTimer&&(clearInterval(this.reconnectTimer),this.reconnectTimer=null)},T.prototype._cleanUp=function(e,t){const r=arguments[2];if(t&&(y("_cleanUp :: done callback provided for on stream close"),this.stream.on("close",t)),y("_cleanUp :: forced? %s",e),e)0===this.options.reconnectPeriod&&this.options.clean&&(n=this.outgoing)&&(y("flush: queue exists? %b",!!n),Object.keys(n).forEach(function(e){"function"==typeof n[e].cb&&(n[e].cb(new Error("Connection closed")),delete n[e])})),y("_cleanUp :: (%s) :: destroying stream",this.options.clientId),this.stream.destroy();else{const e=g({cmd:"disconnect"},r);y("_cleanUp :: (%s) :: call _sendPacket with disconnect packet",this.options.clientId),this._sendPacket(e,m.bind(null,this.stream.end.bind(this.stream)))}var n;this.disconnecting||(y("_cleanUp :: client not disconnecting. Clearing and resetting reconnect."),this._clearReconnect(),this._setupReconnect()),null!==this.pingTimer&&(y("_cleanUp :: clearing pingTimer"),this.pingTimer.clear(),this.pingTimer=null),t&&!this.connected&&(y("_cleanUp :: (%s) :: removing stream `done` callback `close` listener",this.options.clientId),this.stream.removeListener("close",t),t())},T.prototype._sendPacket=function(e,t,r){y("_sendPacket :: (%s) ::  start",this.options.clientId),r=r||C,t=t||C;const n=function(e,t){if(5===e.options.protocolVersion&&"publish"===t.cmd){let r;t.properties&&(r=t.properties.topicAlias);const n=t.topic.toString();if(e.topicAliasSend)if(r){if(0!==n.length&&(y("applyTopicAlias :: register topic: %s - alias: %d",n,r),!e.topicAliasSend.put(n,r)))return y("applyTopicAlias :: error out of range. topic: %s - alias: %d",n,r),new Error("Sending Topic Alias out of range")}else 0!==n.length&&(e.options.autoAssignTopicAlias?(r=e.topicAliasSend.getAliasByTopic(n))?(t.topic="",t.properties={...t.properties,topicAlias:r},y("applyTopicAlias :: auto assign(use) topic: %s - alias: %d",n,r)):(r=e.topicAliasSend.getLruAlias(),e.topicAliasSend.put(n,r),t.properties={...t.properties,topicAlias:r},y("applyTopicAlias :: auto assign topic: %s - alias: %d",n,r)):e.options.autoUseTopicAlias&&(r=e.topicAliasSend.getAliasByTopic(n))&&(t.topic="",t.properties={...t.properties,topicAlias:r},y("applyTopicAlias :: auto use topic: %s - alias: %d",n,r)));else if(r)return y("applyTopicAlias :: error out of range. topic: %s - alias: %d",n,r),new Error("Sending Topic Alias out of range")}}(this,e);if(n)t(n);else{if(!this.connected)return"auth"===e.cmd?(this._shiftPingInterval(),void S(this,e,t)):(y("_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 E(this,e,t,r);default:return void S(this,e,t)}switch(e.qos){case 2:case 1:E(this,e,t,r);break;case 0:default:S(this,e,t)}y("_sendPacket :: (%s) ::  end",this.options.clientId)}},T.prototype._storePacket=function(e,t,r){y("_storePacket :: packet: %o",e),y("_storePacket :: cb? %s",!!t),r=r||C;let n=e;if("publish"===n.cmd){const r=k(this,n=p(e));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"))},T.prototype._setupPingTimer=function(){y("_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))},T.prototype._shiftPingInterval=function(){this.pingTimer&&this.options.keepalive&&this.options.reschedulePings&&this.pingTimer.reschedule(1e3*this.options.keepalive)},T.prototype._checkPing=function(){y("_checkPing :: checking ping..."),this.pingResp?(y("_checkPing :: ping response received. Clearing flag and sending `pingreq`"),this.pingResp=!1,this._sendPacket({cmd:"pingreq"})):(y("_checkPing :: calling _cleanUp with force true"),this._cleanUp(!0))},T.prototype._handlePingresp=function(){this.pingResp=!0},T.prototype._handleConnack=function(e){y("_handleConnack");const t=this.options,r=5===t.protocolVersion?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===r)this.reconnecting=!1,this._onConnect(e);else if(r>0){const e=new Error("Connection refused: "+_[r]);e.code=r,this.emit("error",e)}},T.prototype._handleAuth=function(e){const t=this.options.protocolVersion,r=5===t?e.reasonCode:e.returnCode;if(5!==t){const e=new Error("Protocol error: Auth packets are only supported in MQTT 5. Your version:"+t);return e.code=r,void this.emit("error",e)}const n=this;this.handleAuth(e,function(e,t){if(e)n.emit("error",e);else if(24===r)n.reconnecting=!1,n._sendPacket(t);else{const t=new Error("Connection refused: "+_[r]);e.code=r,n.emit("error",t)}})},T.prototype.handleAuth=function(e,t){t()},T.prototype._handlePublish=function(e,t){y("_handlePublish: packet %o",e),t=void 0!==t?t:C;let r=e.topic.toString();const n=e.payload,i=e.qos,o=e.messageId,s=this,a=this.options,l=[0,16,128,131,135,144,145,151,153];if(5===this.options.protocolVersion){let t;if(e.properties&&(t=e.properties.topicAlias),void 0!==t)if(0===r.length){if(!(t>0&&t<=65535))return y("_handlePublish :: topic alias out of range. alias: %d",t),void this.emit("error",new Error("Received Topic Alias is out of range"));{const e=this.topicAliasRecv.getTopicByAlias(t);if(!e)return y("_handlePublish :: unregistered topic alias. alias: %d",t),void this.emit("error",new Error("Received unregistered Topic Alias"));y("_handlePublish :: topic complemented by alias. topic: %s - alias: %d",r=e,t)}}else{if(!this.topicAliasRecv.put(r,t))return y("_handlePublish :: topic alias out of range. alias: %d",t),void this.emit("error",new Error("Received Topic Alias is out of range"));y("_handlePublish :: registered topic: %s - alias: %d",r,t)}}switch(y("_handlePublish: qos %d",i),i){case 2:a.customHandleAcks(r,n,e,function(r,n){return r instanceof Error||(n=r,r=null),r?s.emit("error",r):-1===l.indexOf(n)?s.emit("error",new Error("Wrong reason code for pubrec")):void(n?s._sendPacket({cmd:"pubrec",messageId:o,reasonCode:n},t):s.incomingStore.put(e,function(){s._sendPacket({cmd:"pubrec",messageId:o},t)}))});break;case 1:a.customHandleAcks(r,n,e,function(i,a){return i instanceof Error||(a=i,i=null),i?s.emit("error",i):-1===l.indexOf(a)?s.emit("error",new Error("Wrong reason code for puback")):(a||s.emit("message",r,n,e),void s.handleMessage(e,function(e){if(e)return t&&t(e);s._sendPacket({cmd:"puback",messageId:o,reasonCode:a},t)}))});break;case 0:this.emit("message",r,n,e),this.handleMessage(e,t);break;default:y("_handlePublish: unknown QoS. Doing nothing.")}},T.prototype.handleMessage=function(e,t){t()},T.prototype._handleAck=function(e){const t=e.messageId,r=e.cmd;let n=null;const i=this.outgoing[t]?this.outgoing[t].cb:null,o=this;let s;if(i){switch(y("_handleAck :: packet type",r),r){case"pubcomp":case"puback":{const r=e.reasonCode;r&&r>0&&16!==r&&((s=new Error("Publish error: "+_[r])).code=r,i(s,e)),delete this.outgoing[t],this.outgoingStore.del(e,i),this.messageIdProvider.deallocate(t),this._invokeStoreProcessingQueue();break}case"pubrec":{n={cmd:"pubrel",qos:2,messageId:t};const r=e.reasonCode;r&&r>0&&16!==r?((s=new Error("Publish error: "+_[r])).code=r,i(s,e)):this._sendPacket(n);break}case"suback":delete this.outgoing[t],this.messageIdProvider.deallocate(t);for(let r=0;r<e.granted.length;r++)if(0!=(128&e.granted[r])){const e=this.messageIdToTopic[t];e&&e.forEach(function(e){delete o._resubscribeTopics[e]})}this._invokeStoreProcessingQueue(),i(null,e);break;case"unsuback":delete this.outgoing[t],this.messageIdProvider.deallocate(t),this._invokeStoreProcessingQueue(),i(null);break;default:o.emit("error",new Error("unrecognized packet type"))}this.disconnecting&&0===Object.keys(this.outgoing).length&&this.emit("outgoingEmpty")}else y("_handleAck :: Server sent an ack in error. Ignoring.")},T.prototype._handlePubrel=function(e,t){y("handling pubrel packet"),t=void 0!==t?t:C;const r=this,n={cmd:"pubcomp",messageId:e.messageId};r.incomingStore.get(e,function(e,i){e?r._sendPacket(n,t):(r.emit("message",i.topic,i.payload,i),r.handleMessage(i,function(e){if(e)return t(e);r.incomingStore.del(i,C),r._sendPacket(n,t)}))})},T.prototype._handleDisconnect=function(e){this.emit("disconnect",e)},T.prototype._nextId=function(){return this.messageIdProvider.allocate()},T.prototype.getLastMessageId=function(){return this.messageIdProvider.getLastAllocated()},T.prototype._resubscribe=function(){y("_resubscribe");const e=Object.keys(this._resubscribeTopics);if(!this._firstConnection&&(this.options.clean||5===this.options.protocolVersion&&!this.connackPacket.sessionPresent)&&e.length>0)if(this.options.resubscribe)if(5===this.options.protocolVersion){y("_resubscribe: protocolVersion 5");for(let t=0;t<e.length;t++){const r={};r[e[t]]=this._resubscribeTopics[e[t]],r.resubscribe=!0,this.subscribe(r,{properties:r[e[t]].properties})}}else this._resubscribeTopics.resubscribe=!0,this.subscribe(this._resubscribeTopics);else this._resubscribeTopics={};this._firstConnection=!1},T.prototype._onConnect=function(e){if(this.disconnected)return void this.emit("connect",e);const t=this;this.connackPacket=e,this.messageIdProvider.clear(),this._setupPingTimer(),this.connected=!0,function r(){let n=t.outgoingStore.createStream();function i(){t._storeProcessing=!1,t._packetIdsDuringStoreProcessing={}}function o(){n.destroy(),n=null,t._flushStoreProcessingQueue(),i()}t.once("close",o),n.on("error",function(e){i(),t._flushStoreProcessingQueue(),t.removeListener("close",o),t.emit("error",e)}),n.on("end",function(){let n=!0;for(const e in t._packetIdsDuringStoreProcessing)if(!t._packetIdsDuringStoreProcessing[e]){n=!1;break}n?(i(),t.removeListener("close",o),t._invokeAllStoreProcessingQueue(),t.emit("connect",e)):r()}),function e(){if(!n)return;t._storeProcessing=!0;const r=n.read(1);let i;r?t._packetIdsDuringStoreProcessing[r.messageId]?e():t.disconnecting||t.reconnectTimer?n.destroy&&n.destroy():(i=t.outgoing[r.messageId]?t.outgoing[r.messageId].cb:null,t.outgoing[r.messageId]={volatile:!1,cb:function(t,r){i&&i(t,r),e()}},t._packetIdsDuringStoreProcessing[r.messageId]=!0,t.messageIdProvider.register(r.messageId)?t._sendPacket(r):y("messageId: %d has already used.",r.messageId)):n.once("readable",e)}()}()},T.prototype._invokeStoreProcessingQueue=function(){if(this._storeProcessingQueue.length>0){const e=this._storeProcessingQueue[0];if(e&&e.invoke())return this._storeProcessingQueue.shift(),!0}return!1},T.prototype._invokeAllStoreProcessingQueue=function(){for(;this._invokeStoreProcessingQueue(););},T.prototype._flushStoreProcessingQueue=function(){for(const e of this._storeProcessingQueue)e.cbStorePut&&e.cbStorePut(new Error("Connection closed")),e.callback&&e.callback(new Error("Connection closed"));this._storeProcessingQueue.splice(0)},t.exports=T}).call(this)}).call(this,e("_process"),"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./default-message-id-provider":7,"./store":8,"./topic-alias-recv":9,"./topic-alias-send":10,"./validations":11,_process:50,debug:18,events:22,inherits:24,"mqtt-packet":40,"readable-stream":69,reinterval:70,"rfdc/default":71,xtend:81}],2:[function(e,t,r){(function(r){(function(){"use strict";const n=e("readable-stream").Transform,i=e("duplexify");let o,s,a,l=!1;t.exports=function(e,t){if(t.hostname=t.hostname||t.host,!t.hostname)throw new Error("Could not determine host. 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a))return new a(e);this.options=e||{},this.options=n(s,e),this._inflights=new Map}a.prototype.put=function(e,t){return this._inflights.set(e.messageId,e),t&&t(),this},a.prototype.createStream=function(){const e=new i(o),t=[];let r=!1,n=0;return this._inflights.forEach(function(e,r){t.push(e)}),e._read=function(){!r&&n<t.length?this.push(t[n++]):this.push(null)},e.destroy=function(){if(r)return;const e=this;r=!0,setTimeout(function(){e.emit("close")},0)},e},a.prototype.del=function(e,t){return(e=this._inflights.get(e.messageId))?(this._inflights.delete(e.messageId),t(null,e)):t&&t(new Error("missing packet")),this},a.prototype.get=function(e,t){return(e=this._inflights.get(e.messageId))?t(null,e):t&&t(new Error("missing packet")),this},a.prototype.close=function(e){this.options.clean&&(this._inflights=null),e&&e()},t.exports=a},{"readable-stream":69,xtend:81}],9:[function(e,t,r){"use strict";function n(e){if(!(this instanceof n))return new 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