node-red-contrib-voice-assistant/lib/comm/mqtt.js

一个小度-小爱-猫精音箱控制NODE-RED自定义设备的节点

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const mqtt_1 = __importDefault(require("mqtt"));
class MqttClient {
    constructor(username, password, url = 'mqtt://47.104.137.100:1883') {
        this.connecting = false;
        this.connected = false;
        this.reconnecting = false;
        this._onMessage = [];
        this._topic = [];
        this.options = {
            username,
            password,
            clientId: 'NrMqtt_' + (1 + Math.random() * 4294967295).toString(16),
            reconnectPeriod: 10000,
        };
        this.url = url;
    }
    //订阅TOPIC
    subTopic(topic) {
        this._topic.push(topic);
    }
    //订阅
    _subscribe(topic) {
        this._client.subscribe(topic, { qos: 0 }, function (err) {
            if (!err) { }
            ;
        });
    }
    //mqtt开始连接
    connect() {
        this.connecting = true;
        try {
            this._client = mqtt_1.default.connect(this.url, this.options);
            this._client.setMaxListeners(0);
            this._client.on('connect', this._onConnect.bind(this));
            this._client.on('reconnect', this._onReconnect.bind(this));
            this._client.on('close', this._onClose.bind(this));
            this._client.on('error', this._onError.bind(this));
        }
        catch (e) {
            console.log('connect', e);
        }
    }
    publish(payload) {
        this._client.publish(this.pubTopic, JSON.stringify(payload));
    }
    //注册消息
    set onData(fn) {
        this._onMessage.push(fn);
    }
    /**
     * 消息接受
     *
     * */
    _onData(topic, payload) {
        // console.log(topic, payload);
        try {
            payload = JSON.parse(payload);
        }
        catch (_a) { }
        this._onMessage.forEach((fn) => fn(null, { message: { topic, payload: payload } }));
    }
    /**
     * mqtt连接完成
     *
     */
    _onConnect() {
        this.connecting = false;
        this.connected = true;
        this.reconnecting = false;
        //console.log('connected');
        this._client.removeAllListeners('message');
        this._client.on('message', this._onData.bind(this));
        this._topic.forEach((topic) => this._subscribe(topic));
        this._onMessage.forEach((fn) => fn(null, { connect: true }));
    }
    /**
     * mqtt重连
     *
     */
    _onReconnect() {
        this.reconnecting = true;
        this.connected = false;
        console.log('mqtt重连');
        this._onMessage.forEach((fn) => fn(null, { reconnect: true }));
    }
    /**
     * mqtt断开
     *
     */
    _onClose() {
        this.connected = false;
        this.connecting = false;
        this.reconnecting = false;
        //this._onMessage.forEach((fn) => fn('云服务断开连接'));
    }
    /**
     * mqtt错误
     *
     */
    _onError(e) {
        //console.log(e)
        if (e.code === 4) {
            this._onMessage.forEach((fn) => fn('云服务用户或密码错误'));
        }
        else if (e.code === 3) {
            this._onMessage.forEach((fn) => fn('云服务密码错误超过6次一小时候再试'));
        }
        else
            this._onMessage.forEach((fn) => fn('云服务断开连接'));
        this.close();
    }
    close(done) {
        if (this.connected) {
            this._client.once('close', function () {
                done && done();
            });
            this._client.end();
        }
        else if (this.connecting || this.reconnecting) {
            this._client.end();
            done && done();
        }
        else {
            done && done();
        }
    }
}
exports.default = MqttClient;