@janart19/node-red-fusebox/nodes/flow/data-streams/query/query-external-connections.html

A collection of Fusebox-specific custom nodes for Node-RED

<script type="text/javascript">
    RED.nodes.registerType("fusebox-query-external-connections", {
        category: 'fusebox',
        color: '#b7dfff',
        defaults: {
            name: { value: "" },
            controller: { value: "", type: "fusebox-controller", required: true },
            interval: { value: 30, validate: function (v) { return v >= 5 && v <= 7200 } },
        },
        inputs: 0,
        outputs: 3,
        icon: 'node-red/status.svg',
        label: function () {
            let defaultName = `query connection status`;

            return this.name || defaultName;
        },
        paletteLabel: function () {
            return "query connection status";
        },
        outputLabels: function (index) {
            switch (index) {
                case 0:
                    return "sdp: monitoring service portal status";
                case 1:
                    return "mqtt: fusebox portal status";
                case 2:
                    return "vpn: monitoring service vpn status";
                default:
                    return null;
            }
        },
        oneditprepare: function () {
            const node = this;
            let _controller = {};

            // Populate form with node values
            $('#node-input-name').val(node.name);
            $('#node-input-controller').val(node.controller);
            $('#node-input-interval').val(node.interval);

            // Define event listeners for form fields
            $("#node-input-controller").change(function () {
                queryControllerConfig();
            });

            $("#node-input-interval").change(function () {
                updateTipText();
            });

            // Get the controller node configuration to populate fields and update helper text
            function queryControllerConfig() {
                const nodeId = $("#node-input-controller").val();

                $.getJSON(`fusebox/controllerNodeConfig?id=${nodeId}`, function (data) {
                    _controller = data;

                    updateTipText();
                }).fail(function () {
                    console.error("Failed to get controller configuration!");

                    updateTipText();
                });
            }

            // Update tip text based on current settings
            function updateTipText() {
                const tipText1 = `Detecting changes in controller (${_controller.uniqueId || "???"})'s external connections.`;
                const tipText2 = `Status will be queried every ${$('#node-input-interval').val()} seconds.`;

                $("#node-input-tip-text-1").text(tipText1);
                $("#node-input-tip-text-2").text(tipText2);
            }
        },
        oneditsave: function () {
            const node = this;

            node.name = $('#node-input-name').val();
            node.controller = $("#node-input-controller").val();
            node.interval = $('#node-input-interval').val();
        }
    });
</script>

<!-- Define style for the form fields -->
<style type="text/css">
    .query-external-connections-div .form-row {
        margin-bottom: 10px;
    }

    .query-external-connections-div .form-row label {
        width: 33% !important;
        vertical-align: middle;
    }

    .query-external-connections-div .form-row div,
    .query-external-connections-div .form-row input,
    .query-external-connections-div .form-row select {
        max-width: 66% !important;
    }

    .query-external-connections-div .form-row select {
        width: 66% !important;
    }

    .query-external-connections-div .form-tips {
        max-width: 100% !important;
        text-align: center;
    }

    .query-external-connections-list .node-input-topic {
        font-size: 12px !important;
        min-width: 100px;
        width: 15%;
    }
</style>

<!-- Form fields for the Data Stream Router node -->
<script type="text/html" data-template-name="fusebox-query-external-connections">
    <div class="query-external-connections-div">
        <div class="form-row">
            <label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
            <input type="text" id="node-input-name" placeholder="Name">
        </div>
        <div class="form-row">
            <label for="node-input-controller"><i class="fa fa-search"></i> Controller</label>
            <select id="node-input-controller">
                <option value="" disabled selected>Select controller...</option>
            </select>
        </div>
        <div class="form-row">
            <label for="node-input-interval"><i class="fa fa-clock-o"></i> Query interval (s)</label>
            <input type="number" id="node-input-interval">
        </div>

        <div class="form-tips" id="node-input-tip-text-1"></div>
        <div class="form-tips" id="node-input-tip-text-2"></div>

        <br>
    </div>
</script>

<!-- Define node description -->
<script type="text/html" data-help-name="fusebox-query-external-connections">
    <p>
        Query the status of controller's external connections.
        The node will output the current status of the controller's external connections.
    </p>
    <p>Often used to send and alert or switch to offline logic.</p>

    <h3>Parameters</h3>
    <dl class="message-properties">
        <dt class="optional">name <span class="property-type">string</span></dt>
        <dd>User-friendly name for the node</dd>

        <dt>controller <span class="property-type">controller</span></dt>
        <dd>The source of the data streams on the local network. Localhost (127.0.0.1) for most cases.</dd>

        <dt>interval <span class="property-type">int</span></dt>
        <dd>Specifies the interval in seconds at which the status of the controller's external connections will be queried. Default is 30 seconds.</dd>
        </dd>
    </dl>

    <h3>Output</h3>
    <dl class="message-properties">
        <dt>controller <span class="property-type">object</span></dt>
        <dd>Each output <code>msg</code> includes info about the source of the data, e.g. <code>uniqueId</code>, <code>host</code>, <code>protocol</code>.</dd>

        <dt>topic <span class="property-type">stingr</span></dt>
        <dd>The topic of the connection: <code>sdp</code>, <code>mqtt</code> or <code>vpn</code>.</dd>

        <dt>payload <span class="property-type">boolean</span></dt>
        <dd><code>true</code> if the controller is connected to the external resource, <code>false</code> if disconnected, and <code>null</code> in case of unknown problems.</dd>
    </dl>

    <h3>Additional details</h3>
    <p>This node gets its data by querying the controller's internal status.</p>
    <p>It is recommended to use this node in combination with the <code>switch</code> node to filter the output based on the connection status.</p>
</script>