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

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/**
* Copyright 2013 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var RED = require(process.env.NODE_RED_HOME+"/red/red");
var wol = require('wake_on_lan');
var chk = /^([0-9A-F]{2}[:-]){5}([0-9A-F]{2})$/;
function WOLnode(n) {
RED.nodes.createNode(this,n);
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this.mac = n.mac.trim();
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var node = this;
this.on("input", function(msg) {
if (msg != null) {
var mac = this.mac || msg.mac || null;
if (mac != null) {
if (chk.test(mac)) {
wol.wake(mac, function(error) {
if (error) { node.warn(error); }
});
}
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else { node.warn('WOL: bad mac address "'+mac+'"'); }
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}
else { node.warn("WOL: no mac address specified"); }
}
});
}
RED.nodes.registerType("wake on lan",WOLnode);