node-red/nodes/core/io/10-mqtt.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

  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.
-->

<script type="text/x-red" data-template-name="mqtt in">
    <div class="form-row">
        <label for="node-input-broker"><i class="icon-tag"></i> Broker</label>
        <input type="text" id="node-input-broker">
    </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>
</script>

<script type="text/x-red" data-help-name="mqtt in">
	<p>MQTT input node. Connects to a broker and subscribes to the specified topic. The topic may contain MQTT wildcards.</p>
	<p>Outputs an object called <b>msg</b> containing <b>msg.topic, msg.payload, msg.qos</b> and <b>msg.retain</b>.</p>
	<p><b>msg.payload</b> is a String.</p>
</script>

<script type="text/javascript">
    RED.nodes.registerType('mqtt in',{
        category: 'input',
        defaults: {
            name: {value:""},
            topic: {value:"",required:true},
            broker: {type:"mqtt-broker", required:true}
        },
        color:"#c6dbef",
        inputs:0,
        outputs:1,
        icon: "bridge.png",
        label: function() {
            return this.name||this.topic||"mqtt";
        },
        labelStyle: function() {
            return this.name?"node_label_italic":"";
        }
    });
</script>

<script type="text/x-red" data-template-name="mqtt out">
    <div class="form-row">
        <label for="node-input-broker"><i class="icon-tag"></i> Broker</label>
        <input type="text" id="node-input-broker">
    </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>
</script>

<script type="text/x-red" data-help-name="mqtt out">
	<p>Connects to a MQTT broker and publishes <b>msg.payload</b> either to the <b>msg.topic</b> OR to the topic specified in the edit window. The value in the edit window has precedence.</p>
	<p><b>msg.qos</b> and <b>msg.retain</b> may also optionally have been set. If not set they are set to 0 and false respectively.</p>
	<p>If <b>msg.payload</b> contains a buffer or an object it will be stringified before being sent.</p>
</script>

<script type="text/javascript">
    RED.nodes.registerType('mqtt out',{
        category: 'output',
        defaults: {
            name: {value:""},
            topic: {value:""},
            broker: {type:"mqtt-broker", required:true}
        },
        color:"#c6dbef",
        inputs:1,
        outputs:0,
        icon: "bridge.png",
        align: "right",
        label: function() {
            return this.name||this.topic||"mqtt";
        },
        labelStyle: function() {
            return this.name?"node_label_italic":"";
        }
    });
</script>

<script type="text/x-red" data-template-name="mqtt-broker">
    <div class="form-row node-input-broker">
        <label for="node-config-input-broker"><i class="icon-bookmark"></i> Broker</label>
        <input class="input-append-left" type="text" id="node-config-input-broker" placeholder="Broker" style="width: 40%;" >
        <label for="node-config-input-port" style="margin-left: 10px; width: 35px; "> Port</label>
        <input type="text" id="node-config-input-port" placeholder="Port" style="width:45px">
    </div>
    <div class="form-row">
        <label for="node-config-input-clientid"><i class="icon-tag"></i> Client ID</label>
        <input type="text" id="node-config-input-clientid" placeholder="Leave blank for auto generated">
    </div>
    <div class="form-row">
        <label for="node-config-input-user"><i class="icon-user"></i> Username</label>
        <input type="text" id="node-config-input-user">
    </div>
    <div class="form-row">
        <label for="node-config-input-pass"><i class="icon-lock"></i> Password</label>
        <input type="password" id="node-config-input-pass">
    </div>
</script>

<script type="text/javascript">
    RED.nodes.registerType('mqtt-broker',{
        category: 'config',
        defaults: {
            broker: {value:"localhost",required:true},
            port: {value:1883,required:true,validate:RED.validators.number()},
            clientid: { value:"" }
            //user -> credentials
            //pass -> credentials
            
        },
        label: function() {
            return this.broker+":"+this.port;
        },
        oneditprepare: function() {
            $.getJSON('mqtt-broker/'+this.id,function(data) {
                if (data.user) {
                    $('#node-config-input-user').val(data.user);
                }
                if (data.hasPassword) {
                    $('#node-config-input-pass').val('__PWRD__');
                } else {
                    $('#node-config-input-pass').val('');
                }
                
            });
        },
        oneditsave: function() {
            var newUser = $('#node-config-input-user').val();
            var newPass = $('#node-config-input-pass').val();
            var credentials = {};
            credentials.user = newUser;
            if (newPass != '__PWRD__') {
                credentials.password = newPass;
            }
            $.ajax({
                url: 'mqtt-broker/'+this.id,
                type: 'POST',
                data: credentials,
                success:function(result){}
            });
        },
        ondelete: function() {
            $.ajax({
                url: 'mqtt-broker/'+this.id,
                type: 'DELETE',
                success: function(result) {}
            });
        }
    });
</script>