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node-red-nodes/io/wol/39-wol.js

49 lines
1.7 KiB
JavaScript

module.exports = function(RED) {
"use strict";
var wol = require('wake_on_lan');
var chk = /^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$/;
function WOLnode(n) {
RED.nodes.createNode(this,n);
this.mac = n.mac.trim();
this.host = n.host;
var node = this;
this.on("input", function(msg) {
var mac = this.mac || msg.mac || null;
var host = this.host || msg.host || '255.255.255.255';
var h = host.split('.');
h.pop();
h.push('255');
host = h.join('.');
if (mac != null) {
if (chk.test(mac)) {
try {
wol.wake(mac, {address: host}, function(error) {
if (error) {
node.warn(error);
node.status({fill:"red",shape:"ring",text:" "});
}
else if (RED.settings.verbose) {
node.log("sent WOL magic packet");
node.status({fill:"green",shape:"dot",text:" "});
}
});
}
catch(e) {
if (RED.settings.verbose) { node.log("WOL: socket error"); }
}
}
else { node.warn('WOL: bad mac address "'+mac+'"'); }
}
else { node.warn("WOL: no mac address specified"); }
});
this.on("close", function () {
node.status({});
})
}
RED.nodes.registerType("wake on lan",WOLnode);
}