mirror of https://github.com/node-red/node-red.git
104 lines
2.6 KiB
JavaScript
104 lines
2.6 KiB
JavaScript
/**
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* Copyright 2013 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var RED = require("../../red/red");
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var reConnect = RED.settings.socketReconnectTime||10000;
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var net = require('net');
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function TcpIn(n) {
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RED.nodes.createNode(this,n);
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this.host = n.host;
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this.port = n.port * 1;
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this.topic = n.topic;
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this.base64 = n.base64;
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this.server = n.server;
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var node = this;
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if (!node.server) {
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var client;
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var to;
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function setupTcpClient() {
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node.log('connecting to port '+node.port);
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client = net.connect(node.port, node.host, function() {
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node.log("input connected to "+node.host+":"+node.port);
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});
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client.on('data', function (data) {
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var msg;
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if (node.base64) { msg = { topic:node.topic, payload:new Buffer(data).toString('base64') }; }
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else { msg = {topic:node.topic, payload:data}; }
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node.send(msg);
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});
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client.on('end', function() {
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node.log("ended");
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});
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client.on('close', function() {
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client.destroy();
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node.log('closed');
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to = setTimeout(setupTcpClient, reConnect);
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});
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client.on('error', function(err) {
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node.log('error : '+err);
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//to = setTimeout(setupTcpClient, reConnect);
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});
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}
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setupTcpClient();
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this._close = function() {
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client.end();
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clearTimeout(to);
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node.log('input stopped');
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}
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}
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else {
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var server = net.createServer(function (socket) {
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var buffer = null;
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socket.on('data', function (chunk) {
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//if (buffer == null) {
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// buffer = chunk;
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//} else {
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//buffer = Buffer.concat([buffer,chunk]);
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var msg = {topic:node.topic, payload:chunk, fromip:socket.remoteAddress+':'+socket.remotePort};
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node.send(msg);
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//}
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});
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socket.on('end', function() {
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var msg = {topic:node.topic, payload:buffer, fromip:socket.remoteAddress+':'+socket.remotePort};
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node.send(msg);
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});
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});
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server.listen(node.port);
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node.log('socket input on port '+node.port);
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this._close = function() {
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server.close();
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node.log('socket input stopped');
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}
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}
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}
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RED.nodes.registerType("tcp in",TcpIn);
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TcpIn.prototype.close = function() {
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this._close();
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}
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