module.exports = function(RED) { "use strict"; function MdnsNode(n) { var mdns = require('mdns'); if (process.platform === "linux") { RED.log.info("You may ignore the warning about Bonjour compatability."); } RED.nodes.createNode(this, n); this.topic = n.topic || ""; this.service = n.service; // var sequence = [ // mdns.rst.DNSServiceResolve(), // mdns.rst.getaddrinfo({families: [4] }) // ]; // var browser = mdns.createBrowser(this.service,{resolverSequence: sequence}); var browser = mdns.createBrowser(this.service); var node = this; browser.on('serviceUp', function(service) { if (RED.settings.verbose) { node.log("here : " + service.name); } service.state = true; var msg = {topic:node.topic, payload:service}; node.send(msg); }); browser.on('serviceDown', function(service) { if (RED.settings.verbose) { node.log("away : " + service.name); } service.state = false; var msg = {topic:node.topic, payload:service}; node.send(msg); }); browser.start(); node.on("close", function() { if (browser) { browser.stop(); } }); } RED.nodes.registerType("discovery", MdnsNode); function MdnsAnnNode(n) { var mdns = require('mdns'); var os = require("os"); if (process.platform === "linux") { RED.log.info("You may ignore the warning about Bonjour compatability."); } RED.nodes.createNode(this, n); this.service = n.service || ""; this.port = n.port; this.name = n.name; this.txt = n.txt; if (this.txt && (this.txt !== '')) { try { this.txt = JSON.parse('{'+this.txt+'}'); } catch (e) { delete this.txt; } } var node = this; this.on("input", function(msg) { if ((msg.payload === 0) || (msg.payload === "0")) { node.ad.stop(); } else { var service = node.service || msg.service; var port = Number(node.port || msg.port); var options = {}; if (node.name || msg.name) { options.name = (node.name || msg.name).replace(/\%h/g, os.hostname()); } if (node.txt || msg.txtRecord) { options.txtRecord = node.txt || msg.txtRecord } node.ad = mdns.createAdvertisement(service, port, options); node.ad.start(); } }); this.on("error", function(e) { node.error(e); }); this.on("close", function() { if (node.ad) { node.ad.stop(); } }); } RED.nodes.registerType("announce", MdnsAnnNode); }