root/luci/trunk/modules/admin-full/luasrc/view/admin_status/connections.htm @ 8328

<%#
LuCI - Lua Configuration Interface
Copyright 2010 Jo-Philipp Wich <xm@subsignal.org>

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

$Id$

-%>

<%+header%>

<script type="text/javascript" src="<%=resource%>/cbi.js"></script>
<script type="text/javascript">//<![CDATA[
    var bwxhr = new XHR();

    var G;
    var TIME  = 0;
    var UDP   = 1;
    var TCP   = 2;
    var OTHER = 3;

    var width  = 760;
    var height = 300;
    var step   = 5;

    var data_wanted = Math.floor(width / step);
    var data_fill   = 0;
    var data_stamp  = 0;

    var data_udp = [ ];
    var data_tcp = [ ];
    var data_otr = [ ];

    var line_udp;
    var line_tcp;

    var label_25;
    var label_50;
    var label_75;

    var label_udp_cur;
    var label_udp_avg;
    var label_udp_peak;

    var label_tcp_cur;
    var label_tcp_avg;
    var label_tcp_peak;

    var label_otr_cur;
    var label_otr_avg;
    var label_otr_peak;

    var label_scale;

    var conn_table;


    /* wait for SVG */
    window.setTimeout(
        function() {
            var svg = document.getElementById('bwsvg');

            try {
                G = svg.getSVGDocument
                    ? svg.getSVGDocument() : svg.contentDocument;
            }
            catch(e) {
                G = document.embeds['bwsvg'].getSVGDocument();
            }

            if (!G)
            {
                window.setTimeout(arguments.callee, 1000);
            }
            else
            {
                /* find sizes */
                width       = svg.offsetWidth  - 2;
                height      = svg.offsetHeight - 2;
                data_wanted = Math.ceil(width / step);

                /* prefill datasets */
                for (var i = 0; i < data_wanted; i++)
                {
                    data_udp[i] = 0;
                    data_tcp[i] = 0;
                    data_otr[i] = 0;
                }

                /* find svg elements */
                line_udp = G.getElementById('udp');
                line_tcp = G.getElementById('tcp');
                line_otr = G.getElementById('other');

                label_25 = G.getElementById('label_25');
                label_50 = G.getElementById('label_50');
                label_75 = G.getElementById('label_75');

                label_udp_cur  = document.getElementById('lb_udp_cur');
                label_udp_avg  = document.getElementById('lb_udp_avg');
                label_udp_peak = document.getElementById('lb_udp_peak');

                label_tcp_cur  = document.getElementById('lb_tcp_cur');
                label_tcp_avg  = document.getElementById('lb_tcp_avg');
                label_tcp_peak = document.getElementById('lb_tcp_peak');

                label_otr_cur  = document.getElementById('lb_otr_cur');
                label_otr_avg  = document.getElementById('lb_otr_avg');
                label_otr_peak = document.getElementById('lb_otr_peak');

                label_scale    = document.getElementById('scale');

                conn_table     = document.getElementById('connections');


                /* plot horizontal time interval lines */
                for (var i = width % (step * 60); i < width; i += step * 60)
                {
                    var line = G.createElementNS('http://www.w3.org/2000/svg', 'line');
                        line.setAttribute('x1', i);
                        line.setAttribute('y1', 0);
                        line.setAttribute('x2', i);
                        line.setAttribute('y2', '100%');
                        line.setAttribute('style', 'stroke:black;stroke-width:0.1');

                    var text = G.createElementNS('http://www.w3.org/2000/svg', 'text');
                        text.setAttribute('x', i + 5);
                        text.setAttribute('y', 15);
                        text.setAttribute('style', 'fill:#999999; font-size:9pt');
                        text.appendChild(G.createTextNode(Math.round((width - i) / step / 60) + 'm'));

                    label_25.parentNode.appendChild(line);
                    label_25.parentNode.appendChild(text);
                }

                label_scale.innerHTML = String.format('<%:(%d minute window, %d second interval)%>', data_wanted / 60, 3);

                /* render datasets, start update interval */
                XHR.poll(3, '<%=build_url("admin/status/realtime/connections_status")%>', null,
                    function(x, json)
                    {
                        var conn = json.connections;

                        while (conn_table.rows.length > 1)
                            conn_table.rows[0].parentNode.deleteRow(-1);

                        for (var i = 0; i < conn.length; i++)
                        {
                            var c  = conn[i];
                            var tr = conn_table.rows[0].parentNode.insertRow(-1);
                                tr.className = 'cbi-section-table-row cbi-rowstyle-' + (1 + (i % 2));

                            tr.insertCell(-1).innerHTML = c.layer3.toUpperCase();
                            tr.insertCell(-1).innerHTML = c.layer4.toUpperCase();
                            tr.insertCell(-1).innerHTML = String.format(c.layer3 == 'ipv6' ? '[%s]:%d' : '%s:%d', c.src, c.sport);
                            tr.insertCell(-1).innerHTML = String.format(c.layer3 == 'ipv6' ? '[%s]:%d' : '%s:%d', c.dst, c.dport);
                            tr.insertCell(-1).innerHTML = String.format('%1024.2mB (%d <%:Pkts.%>)', c.bytes, c.packets);
                        }


                        var data = json.statistics;

                        var data_max   = 0;
                        var data_scale = 0;

                        var data_udp_avg = 0;
                        var data_tcp_avg = 0;
                        var data_otr_avg = 0;

                        var data_udp_peak = 0;
                        var data_tcp_peak = 0;
                        var data_otr_peak = 0;

                        for (var i = data_stamp ? 0 : 1; i < data.length; i++)
                        {
                            /* skip overlapping entries */
                            if (data[i][TIME] <= data_stamp)
                                continue;

                            data_udp.push(data[i][UDP]);
                            data_tcp.push(data[i][TCP]);
                            data_otr.push(data[i][OTHER]);
                        }

                        /* cut off outdated entries */
                        data_udp = data_udp.slice(data_udp.length - data_wanted, data_udp.length);
                        data_tcp = data_tcp.slice(data_tcp.length - data_wanted, data_tcp.length);
                        data_otr = data_otr.slice(data_otr.length - data_wanted, data_otr.length);

                        /* find peak */
                        for (var i = 0; i < data_udp.length; i++)
                        {
                            data_max = Math.max(data_max, data_udp[i]);
                            data_max = Math.max(data_max, data_tcp[i]);
                            data_max = Math.max(data_max, data_otr[i]);

                            data_udp_peak = Math.max(data_udp_peak, data_udp[i]);
                            data_tcp_peak = Math.max(data_tcp_peak, data_tcp[i]);
                            data_otr_peak = Math.max(data_otr_peak, data_otr[i]);

                            if (i > 0)
                            {
                                data_udp_avg = (data_udp_avg + data_udp[i]) / 2;
                                data_tcp_avg = (data_tcp_avg + data_tcp[i]) / 2;
                                data_otr_avg = (data_otr_avg + data_otr[i]) / 2;
                            }
                            else
                            {
                                data_udp_avg = data_udp[i];
                                data_tcp_avg = data_tcp[i];
                                data_otr_avg = data_otr[i];
                            }
                        }

                        /* remember current timestamp, calculate horizontal scale */
                        data_stamp = data[data.length-1][TIME];
                        data_scale = height / (data_max * 1.1);


                        /* plot data */
                        var pt_udp = '0,' + height;
                        var pt_tcp = '0,' + height;
                        var pt_otr = '0,' + height;

                        var y_udp = 0;
                        var y_tcp = 0;
                        var y_otr = 0;

                        for (var i = 0; i < data_udp.length; i++)
                        {
                            var x = i * step;

                            y_udp = height - Math.floor(data_udp[i] * data_scale);
                            y_tcp = height - Math.floor(data_tcp[i] * data_scale);
                            y_otr = height - Math.floor(data_otr[i] * data_scale);

                            pt_udp += ' ' + x + ',' + y_udp;
                            pt_tcp += ' ' + x + ',' + y_tcp;
                            pt_otr += ' ' + x + ',' + y_otr;
                        }

                        pt_udp += ' ' + width + ',' + y_udp + ' ' + width + ',' + height;
                        pt_tcp += ' ' + width + ',' + y_tcp + ' ' + width + ',' + height;
                        pt_otr += ' ' + width + ',' + y_otr + ' ' + width + ',' + height;


                        line_udp.setAttribute('points', pt_udp);
                        line_tcp.setAttribute('points', pt_tcp);
                        line_otr.setAttribute('points', pt_otr);

                        label_25.firstChild.data = Math.floor(1.1 * 0.25 * data_max);
                        label_50.firstChild.data = Math.floor(1.1 * 0.50 * data_max);
                        label_75.firstChild.data = Math.floor(1.1 * 0.75 * data_max);

                        label_udp_cur.innerHTML = Math.floor(data_udp[data_udp.length-1]);
                        label_tcp_cur.innerHTML = Math.floor(data_tcp[data_tcp.length-1]);
                        label_otr_cur.innerHTML = Math.floor(data_otr[data_otr.length-1]);

                        label_udp_avg.innerHTML = Math.floor(data_udp_avg);
                        label_tcp_avg.innerHTML = Math.floor(data_tcp_avg);
                        label_otr_avg.innerHTML = Math.floor(data_otr_avg);

                        label_udp_peak.innerHTML = Math.floor(data_udp_peak);
                        label_tcp_peak.innerHTML = Math.floor(data_tcp_peak);
                        label_otr_peak.innerHTML = Math.floor(data_otr_peak);
                    }
                );
            }
        }, 1000
    );
//]]></script>

<h2><a id="content" name="content"><%:Realtime Connections%></a></h2>

<div class="cbi-map-descr"><%:This page gives an overview over currently active network connections.%></div>

<fieldset class="cbi-section" id="cbi-table-table">
    <legend><%:Active Connections%></legend>

    <embed id="bwsvg" style="width:100%; height:300px; border:1px solid #000000; background-color:#FFFFFF" src="<%=resource%>/connections.svg" />
    <div style="text-align:right"><small id="scale">-</small></div>
    <br />

    <table style="width:100%; table-layout:fixed" cellspacing="5">
        <tr>
            <td style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid blue"><%:UDP:%></strong></td>
            <td id="lb_udp_cur">0</td>

            <td style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></td>
            <td id="lb_udp_avg">0</td>

            <td style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></td>
            <td id="lb_udp_peak">0</td>
        </tr>
        <tr>
            <td style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid green"><%:TCP:%></strong></td>
            <td id="lb_tcp_cur">0</td>

            <td style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></td>
            <td id="lb_tcp_avg">0</td>

            <td style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></td>
            <td id="lb_tcp_peak">0</td>
        </tr>
        <tr>
            <td style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid red"><%:Other:%></strong></td>
            <td id="lb_otr_cur">0</td>

            <td style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></td>
            <td id="lb_otr_avg">0</td>

            <td style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></td>
            <td id="lb_otr_peak">0</td>
        </tr>
    </table>
    <br />

    <div class="cbi-section-node">
        <table class="cbi-section-table" id="connections">
            <tr class="cbi-section-table-titles">
                <th class="cbi-section-table-cell"><%:Network%></th>
                <th class="cbi-section-table-cell"><%:Protocol%></th>
                <th class="cbi-section-table-cell"><%:Source%></th>
                <th class="cbi-section-table-cell"><%:Destination%></th>
                <th class="cbi-section-table-cell"><%:Transfer%></th>
            </tr>

            <tr><td colspan="5"><em><%:Collecting data...%></em></td></tr>
        </table>
    </div>
</fieldset>

<%+footer%>