modules/luci-mod-status/luasrc/view/admin_status/bandwidth.htm

   1 <%#
   2  Copyright 2010-2018 Jo-Philipp Wich <jo@mein.io>
   3  Licensed to the public under the Apache License 2.0.
   4 -%>
   5
   6 <%-
   7         local ntm = require "luci.model.network".init()
   8
   9         local dev
  10         local devices = { }
  11         for _, dev in luci.util.vspairs(luci.sys.net.devices()) do
  12                 if dev ~= "lo" and not ntm:ignore_interface(dev) then
  13                         devices[#devices+1] = dev
  14                 end
  15         end
  16
  17         local curdev = luci.http.formvalue("dev") or devices[1]
  18 -%>
  19
  20 <%+header%>
  21
  22 <script type="text/javascript">//<![CDATA[
  23         var bwxhr = new XHR();
  24
  25         var G;
  26         var TIME = 0;
  27         var RXB  = 1;
  28         var RXP  = 2;
  29         var TXB  = 3;
  30         var TXP  = 4;
  31
  32         var width  = 760;
  33         var height = 300;
  34         var step   = 5;
  35
  36         var data_wanted = Math.floor(width / step);
  37         var data_fill   = 1;
  38         var data_stamp  = 0;
  39
  40         var data_rx = [ ];
  41         var data_tx = [ ];
  42
  43         var line_rx;
  44         var line_tx;
  45
  46         var label_25;
  47         var label_50;
  48         var label_75;
  49
  50         var label_rx_cur;
  51         var label_rx_avg;
  52         var label_rx_peak;
  53
  54         var label_tx_cur;
  55         var label_tx_avg;
  56         var label_tx_peak;
  57
  58         var label_scale;
  59
  60
  61         Math.log2 = Math.log2 || function(x) { return Math.log(x) * Math.LOG2E; };
  62
  63         function bandwidth_label(bytes, br)
  64         {
  65                 var uby = '<%:kB/s%>';
  66                 var kby = (bytes / 1024);
  67
  68                 if (kby >= 1024)
  69                 {
  70                         uby = '<%:MB/s%>';
  71                         kby = kby / 1024;
  72                 }
  73
  74                 var ubi = '<%:kbit/s%>';
  75                 var kbi = (bytes * 8 / 1024);
  76
  77                 if (kbi >= 1024)
  78                 {
  79                         ubi = '<%:Mbit/s%>';
  80                         kbi = kbi / 1024;
  81                 }
  82
  83                 return String.format("%f %s%s(%f %s)",
  84                         kbi.toFixed(2), ubi,
  85                         br ? '<br />' : ' ',
  86                         kby.toFixed(2), uby
  87                 );
  88         }
  89
  90         /* wait for SVG */
  91         window.setTimeout(
  92                 function() {
  93                         var svg = document.getElementById('bwsvg');
  94
  95                         try {
  96                                 G = svg.getSVGDocument
  97                                         ? svg.getSVGDocument() : svg.contentDocument;
  98                         }
  99                         catch(e) {
 100                                 G = document.embeds['bwsvg'].getSVGDocument();
 101                         }
 102
 103                         if (!G)
 104                         {
 105                                 window.setTimeout(arguments.callee, 1000);
 106                         }
 107                         else
 108                         {
 109                                 /* find sizes */
 110                                 width       = svg.offsetWidth  - 2;
 111                                 height      = svg.offsetHeight - 2;
 112                                 data_wanted = Math.ceil(width / step);
 113
 114                                 /* prefill datasets */
 115                                 for (var i = 0; i < data_wanted; i++)
 116                                 {
 117                                         data_rx[i] = 0;
 118                                         data_tx[i] = 0;
 119                                 }
 120
 121                                 /* find svg elements */
 122                                 line_rx = G.getElementById('rx');
 123                                 line_tx = G.getElementById('tx');
 124
 125                                 label_25 = G.getElementById('label_25');
 126                                 label_50 = G.getElementById('label_50');
 127                                 label_75 = G.getElementById('label_75');
 128
 129                                 label_rx_cur  = document.getElementById('rx_bw_cur');
 130                                 label_rx_avg  = document.getElementById('rx_bw_avg');
 131                                 label_rx_peak = document.getElementById('rx_bw_peak');
 132
 133                                 label_tx_cur  = document.getElementById('tx_bw_cur');
 134                                 label_tx_avg  = document.getElementById('tx_bw_avg');
 135                                 label_tx_peak = document.getElementById('tx_bw_peak');
 136
 137                                 label_scale   = document.getElementById('scale');
 138
 139
 140                                 /* plot horizontal time interval lines */
 141                                 for (var i = width % (step * 60); i < width; i += step * 60)
 142                                 {
 143                                         var line = G.createElementNS('http://www.w3.org/2000/svg', 'line');
 144                                                 line.setAttribute('x1', i);
 145                                                 line.setAttribute('y1', 0);
 146                                                 line.setAttribute('x2', i);
 147                                                 line.setAttribute('y2', '100%');
 148                                                 line.setAttribute('style', 'stroke:black;stroke-width:0.1');
 149
 150                                         var text = G.createElementNS('http://www.w3.org/2000/svg', 'text');
 151                                                 text.setAttribute('x', i + 5);
 152                                                 text.setAttribute('y', 15);
 153                                                 text.setAttribute('style', 'fill:#eee; font-size:9pt; font-family:sans-serif; text-shadow:1px 1px 1px #000');
 154                                                 text.appendChild(G.createTextNode(Math.round((width - i) / step / 60) + 'm'));
 155
 156                                         label_25.parentNode.appendChild(line);
 157                                         label_25.parentNode.appendChild(text);
 158                                 }
 159
 160                                 label_scale.innerHTML = String.format('<%:(%d minute window, %d second interval)%>', data_wanted / 60, 3);
 161
 162                                 /* render datasets, start update interval */
 163                                 XHR.poll(3, '<%=build_url("admin/status/realtime/bandwidth_status", curdev)%>', null,
 164                                         function(x, data)
 165                                         {
 166                                                 var data_max   = 0;
 167                                                 var data_scale = 0;
 168
 169                                                 var data_rx_avg = 0;
 170                                                 var data_tx_avg = 0;
 171
 172                                                 var data_rx_peak = 0;
 173                                                 var data_tx_peak = 0;
 174
 175                                                 for (var i = data_stamp ? 0 : 1; i < data.length; i++)
 176                                                 {
 177                                                         /* skip overlapping entries */
 178                                                         if (data[i][TIME] <= data_stamp)
 179                                                                 continue;
 180
 181                                                         data_fill++;
 182
 183                                                         /* normalize difference against time interval */
 184                                                         if (i > 0)
 185                                                         {
 186                                                                 var time_delta = data[i][TIME] - data[i-1][TIME];
 187                                                                 if (time_delta)
 188                                                                 {
 189                                                                         data_rx.push((data[i][RXB] - data[i-1][RXB]) / time_delta);
 190                                                                         data_tx.push((data[i][TXB] - data[i-1][TXB]) / time_delta);
 191                                                                 }
 192                                                         }
 193                                                 }
 194
 195                                                 /* cut off outdated entries */
 196                                                 data_rx = data_rx.slice(data_rx.length - data_wanted, data_rx.length);
 197                                                 data_tx = data_tx.slice(data_tx.length - data_wanted, data_tx.length);
 198                                                 data_fill = Math.min(data_fill, data_wanted);
 199
 200                                                 /* find peak */
 201                                                 for (var i = 0; i < data_rx.length; i++)
 202                                                 {
 203                                                         data_max = Math.max(data_max, data_rx[i]);
 204                                                         data_max = Math.max(data_max, data_tx[i]);
 205
 206                                                         data_rx_peak = Math.max(data_rx_peak, data_rx[i]);
 207                                                         data_tx_peak = Math.max(data_tx_peak, data_tx[i]);
 208
 209                                                         data_rx_avg += data_rx[i];
 210                                                         data_tx_avg += data_tx[i];
 211                                                 }
 212
 213                                                 data_rx_avg = (data_rx_avg / data_fill);
 214                                                 data_tx_avg = (data_tx_avg / data_fill);
 215
 216                                                 var size = Math.floor(Math.log2(data_max)),
 217                                                     div = Math.pow(2, size - (size % 10)),
 218                                                     mult = data_max / div,
 219                                                     mult = (mult < 5) ? 2 : ((mult < 50) ? 10 : ((mult < 500) ? 100 : 1000));
 220
 221                                                 data_max = data_max + (mult * div) - (data_max % (mult * div));
 222
 223                                                 /* remember current timestamp, calculate horizontal scale */
 224                                                 data_stamp = data[data.length-1][TIME];
 225                                                 data_scale = height / data_max;
 226
 227                                                 /* plot data */
 228                                                 var pt_rx = '0,' + height;
 229                                                 var pt_tx = '0,' + height;
 230
 231                                                 var y_rx = 0;
 232                                                 var y_tx = 0;
 233
 234                                                 for (var i = 0; i < data_rx.length; i++)
 235                                                 {
 236                                                         var x = i * step;
 237
 238                                                         y_rx = height - Math.floor(data_rx[i] * data_scale);
 239                                                         y_tx = height - Math.floor(data_tx[i] * data_scale);
 240
 241                                                         pt_rx += ' ' + x + ',' + y_rx;
 242                                                         pt_tx += ' ' + x + ',' + y_tx;
 243                                                 }
 244
 245                                                 pt_rx += ' ' + width + ',' + y_rx + ' ' + width + ',' + height;
 246                                                 pt_tx += ' ' + width + ',' + y_tx + ' ' + width + ',' + height;
 247
 248
 249                                                 line_rx.setAttribute('points', pt_rx);
 250                                                 line_tx.setAttribute('points', pt_tx);
 251
 252                                                 label_25.firstChild.data = bandwidth_label(0.25 * data_max);
 253                                                 label_50.firstChild.data = bandwidth_label(0.50 * data_max);
 254                                                 label_75.firstChild.data = bandwidth_label(0.75 * data_max);
 255
 256                                                 label_rx_cur.innerHTML = bandwidth_label(data_rx[data_rx.length-1], true);
 257                                                 label_tx_cur.innerHTML = bandwidth_label(data_tx[data_tx.length-1], true);
 258
 259                                                 label_rx_avg.innerHTML = bandwidth_label(data_rx_avg, true);
 260                                                 label_tx_avg.innerHTML = bandwidth_label(data_tx_avg, true);
 261
 262                                                 label_rx_peak.innerHTML = bandwidth_label(data_rx_peak, true);
 263                                                 label_tx_peak.innerHTML = bandwidth_label(data_tx_peak, true);
 264                                         }
 265                                 );
 266
 267                                 XHR.run();
 268                         }
 269                 }, 1000
 270         );
 271 //]]></script>
 272
 273 <h2 name="content"><%:Realtime Traffic%></h2>
 274
 275 <ul class="cbi-tabmenu">
 276         <% for _, dev in ipairs(devices) do %>
 277                 <li class="cbi-tab<%= dev == curdev and "" or "-disabled" %>"><a href="?dev=<%=pcdata(dev)%>"><%=pcdata(dev)%></a></li>
 278         <% end %>
 279 </ul>
 280
 281 <embed id="bwsvg" style="width:100%; height:300px; border:1px solid #000000; background-color:#FFFFFF" src="<%=resource%>/bandwidth.svg" />
 282 <div style="text-align:right"><small id="scale">-</small></div>
 283 <br />
 284
 285 <div class="table" style="width:100%; table-layout:fixed" cellspacing="5">
 286         <div class="tr">
 287                 <div class="td" style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid blue"><%:Inbound:%></strong></div>
 288                 <div class="td" id="rx_bw_cur">0 <%:kbit/s%><br />(0 <%:kB/s%>)</div>
 289
 290                 <div class="td" style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></div>
 291                 <div class="td" id="rx_bw_avg">0 <%:kbit/s%><br />(0 <%:kB/s%>)</div>
 292
 293                 <div class="td" style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></div>
 294                 <div class="td" id="rx_bw_peak">0 <%:kbit/s%><br />(0 <%:kB/s%>)</div>
 295         </div>
 296         <div class="tr">
 297                 <div class="td" style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid green"><%:Outbound:%></strong></div>
 298                 <div class="td" id="tx_bw_cur">0 <%:kbit/s%><br />(0 <%:kB/s%>)</div>
 299
 300                 <div class="td" style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></div>
 301                 <div class="td" id="tx_bw_avg">0 <%:kbit/s%><br />(0 <%:kB/s%>)</div>
 302
 303                 <div class="td" style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></div>
 304                 <div class="td" id="tx_bw_peak">0 <%:kbit/s%><br />(0 <%:kB/s%>)</div>
 305         </div>
 306 </div>
 307
 308 <%+footer%>