mirror of
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66 lines
2.7 KiB
JavaScript
66 lines
2.7 KiB
JavaScript
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/**
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* @author Configured Things Ltd. [getconfigured@configuredthings.com]
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* @copyright Crown Copyright 2024
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* @license Apache-2.0
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*/
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import mqtt from "mqtt";
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import Operation from "../Operation.mjs";
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import OperationError from "../errors/OperationError.mjs";
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/**
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* MQTT Publish operation
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*/
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class MQTTPublish extends Operation {
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/**
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* MQTTPublish constructor
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*/
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constructor() {
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super();
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this.name = "MQTT Publish";
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this.module = "MQTT";
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this.description = "Publishes a message to an MQTT broker";
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this.infoURL = "https://en.wikipedia.org/wiki/MQTT";
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this.inputType = "String";
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this.outputType = "String";
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this.args = [
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{
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name: "MQTT broker URL",
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type: "string",
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value: ""
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},
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{
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name: "Topic",
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type: "string",
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value: ""
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}
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];
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}
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/**
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* @param {String} input
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* @param {Object[]} args
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* @returns {String}
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*/
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run(input, args) {
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const [broker, topic] = args;
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const mqttUrlRegex = /^(ws|mqtt)s?:\/\/(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]{0,61}[a-zA-Z0-9])(\.([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]{0,61}[a-zA-Z0-9]))*|([01]?[0-9][0-9]?|2[0-4][0-9]|25[0-5])(\.([01]?[0-9][0-9]?|2[0-4][0-9]|25[0-5])){3}|(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])))(:([1-9][0-9]{0,3}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5]))?$/;
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const mqttTopicRegex = /^[\u0000-\uFFFF]+(\/[\u0000-\uFFFF]+)+$/;
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if (mqttUrlRegex.test(broker)) {
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if (mqttTopicRegex.test(broker)) {
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const client = mqtt.connect(broker);
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client.on("connect", () => {
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client.publish(topic, input);
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client.end();
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});
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} else throw new OperationError(`Invalid MQTT topic name - ${topic}`);
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} else throw new OperationError(`Invalid MQTT broker URL - ${broker}`);
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return input;
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}
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}
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export default MQTTPublish;
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