frodovdr/node-red-nodes
1
0
Fork 0
mirror of https://github.com/node-red/node-red-nodes.git synced 2025-03-01 10:37:43 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add basic announce capability to mdns node.

Browse Source
This commit is contained in:
dceejay
2015-05-08 20:57:15 +01:00
parent 68e639c98a
commit 5dbf104048
4 changed files with 135 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
io/mdns/mdns.js
View File

@@ -28,24 +28,69 @@ module.exports = function(RED) {
var browser = mdns.createBrowser(this.service);
var node = this;
browser.on('serviceUp', function (service) {
browser.on('serviceUp', function(service) {
if (RED.settings.verbose) { node.log("here : " + service.name); }
service.state = true;
var msg = {topic: node.topic, payload: service};
var msg = {topic:node.topic, payload:service};
node.send(msg);
});
browser.on('serviceDown', function (service) {
browser.on('serviceDown', function(service) {
if (RED.settings.verbose) { node.log("away : " + service.name); }
service.state = false;
var msg = {topic: node.topic, payload: service};
var msg = {topic:node.topic, payload:service};
node.send(msg);
});
browser.start();
node.on("close", function () {
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);
}