node-red/nodes/io/31-tcpin.html

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HTML

<!--
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
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Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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<script type="text/x-red" data-template-name="tcp in">
<div class="form-row">
<label for="node-input-host"><i class="icon-bookmark"></i> Host</label>
<input type="text" id="node-input-host" placeholder="localhost" style="width: 40%;" >
<label for="node-input-port" style="margin-left: 10px; width: 35px;"> Port</label>
<input type="text" id="node-input-port" placeholder="Port" style="width: 45px">
</div>
<div class="form-row">
<label>&nbsp;</label>
<input type="checkbox" id="node-input-server" placeholder="server" style="display: inline-block; width: auto; vertical-align: top;">
<label for="node-input-server" style="width: 70%;">Be a server socket ?</label>
</div>
<div class="form-row">
<label>&nbsp;</label>
<input type="checkbox" id="node-input-base64" placeholder="base64" style="display: inline-block; width: auto; vertical-align: top;">
<label for="node-input-base64" style="width: 70%;">Base64 encode payload ?</label>
</div>
<div class="form-row">
<label for="node-input-topic"><i class="icon-tasks"></i> Topic</label>
<input type="text" id="node-input-topic" placeholder="Topic">
</div>
<div class="form-row">
<label for="node-input-name"><i class="icon-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
<div class="form-tips">Tip: sends the received data as a Buffer object (not a String).<br/>If you select server socket the host defaults to localhost.</div>
</script>
<script type="text/x-red" data-help-name="tcp in">
<p>Provides a choice of tcp input connections. Can either be a client - or provide a listening socket.</p>
<p>The TCP node produces a <i>BUFFER</i> object <b></b>msg.payload</b> and NOT a String. If you need a String then use <i>.toString()</i> on <b>msg.payload</b> in your next function block.</p>
<p>It also provides <b>msg.fromip</b> of the form ipaddress:port .</p>
<p>You can select Base64 encoding if you want to make it easy to preserve the complete message as a string.</p>
<p>In case of disconnection the client trys to reconnect every 10 secs. Topic is optional.</p>
</script>
<script type="text/javascript">
RED.nodes.registerType('tcp in',{
category: 'input',
color:"Silver",
defaults: {
host: {value:"127.0.0.1",required:true},
port: {value:"",required:true,validate:RED.validators.number()},
base64: {value:false,required:true},
server: {value:false,required:true},
topic: {value:""},
name: {value:""}
},
inputs:0,
outputs:1,
icon: "bridge-dash.png",
label: function() {
if ((this.host!="") & (this.port!="")) {
return this.name||(this.host+":"+this.port);
}
else { return "tcp in"; }
},
labelStyle: function() {
return this.name?"node_label_italic":"";
}
});
</script>