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node-red/nodes/io/30-socketout.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("../../red/red");
function SocketOut(n) {
RED.nodes.createNode(this,n);
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this.warn("node type deprecated");
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this.host = n.host;
this.port = n.port * 1;
this.name = n.name;
this.trans = n.transport||n.trans||"";
var node = this;
this.on("input", function(msg) {
if (msg != null) {
if (this.trans == "http") {
var http = require("http");
http.get(msg.payload, function(res) {
node.log("http : response : " + res.statusCode);
}).on('error', function(e) {
node.error("http : error : " + e.message);
});
}
if (this.trans == "tcp") {
var net = require('net');
var client = new net.Socket();
client.on('error', function (err) {
node.error('tcp : '+err);
});
client.connect(this.port, this.host, function() {
try { client.end(msg.payload); }
catch (e) { node.error(e); }
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});
}
if (this.trans == "udp") {
var dgram = require('dgram');
var sock = dgram.createSocket('udp4'); // only use ipv4 for now
sock.bind(this.port); // have to bind before you can enable broadcast...
sock.setBroadcast(true); // turn on broadcast
var buf = new Buffer(msg.payload);
sock.send(buf, 0, buf.length, this.port, this.host, function(err, bytes) {
if (err) node.error("udp : "+err);
//util.log('[socket out] udp :' +bytes);
sock.close();
});
}
}
});
var node = this;
}
RED.nodes.registerType("socket out",SocketOut);