modules/admin-full/luasrc/view/admin_status/bandwidth.htm

   1 <%#
   2 LuCI - Lua Configuration Interface
   3 Copyright 2010 Jo-Philipp Wich <xm@subsignal.org>
   4
   5 Licensed under the Apache License, Version 2.0 (the "License");
   6 you may not use this file except in compliance with the License.
   7 You may obtain a copy of the License at
   8
   9         http://www.apache.org/licenses/LICENSE-2.0
  10
  11 $Id$
  12
  13 -%>
  14
  15 <%-
  16         local dev
  17         local devices = { }
  18         for _, dev in luci.util.kspairs(luci.sys.net.devices()) do
  19                 if dev ~= "lo" then
  20                         devices[#devices+1] = dev
  21                 end
  22         end
  23
  24         local curdev = luci.dispatcher.context.requestpath
  25               curdev = curdev[#curdev] ~= "bandwidth" and curdev[#curdev] or devices[1]
  26 -%>
  27
  28 <%+header%>
  29
  30 <script type="text/javascript" src="<%=resource%>/cbi.js"></script>
  31 <script type="text/javascript">//<![CDATA[
  32         var bwxhr = new XHR();
  33
  34         var G;
  35         var TIME = 0;
  36         var RXB  = 1;
  37         var RXP  = 2;
  38         var TXB  = 3;
  39         var TXP  = 4;
  40
  41         var width  = 760;
  42         var height = 300;
  43         var step   = 5;
  44
  45         var data_wanted = Math.floor(width / step);
  46         var data_fill   = 0;
  47         var data_stamp  = 0;
  48
  49         var data_rx = [ ];
  50         var data_tx = [ ];
  51
  52         var line_rx;
  53         var line_tx;
  54
  55         var label_25;
  56         var label_50;
  57         var label_75;
  58
  59         var label_rx_cur;
  60         var label_rx_avg;
  61         var label_rx_peak;
  62
  63         var label_tx_cur;
  64         var label_tx_avg;
  65         var label_tx_peak;
  66
  67         var label_scale;
  68
  69
  70         function bandwidth_label(bytes, br)
  71         {
  72                 var uby = 'KByte';
  73                 var kby = (bytes / 1024);
  74
  75                 if (kby >= 1024)
  76                 {
  77                         uby = 'MByte';
  78                         kby = kby / 1024;
  79                 }
  80
  81                 var ubi = 'KBit';
  82                 var kbi = (bytes * 8 / 1024);
  83
  84                 if (kbi >= 1024)
  85                 {
  86                         ubi = 'MBit';
  87                         kbi = kbi / 1024;
  88                 }
  89
  90                 return String.format("%f %s/s%s(%f %s/s)",
  91                         kbi.toFixed(2), ubi,
  92                         br ? '<br />' : ' ',
  93                         kby.toFixed(2), uby
  94                 );
  95         }
  96
  97         function update_graph()
  98         {
  99                 bwxhr.get('<%=build_url("admin/status/bandwidth_status", curdev)%>', null,
 100                         function(x, data)
 101                         {
 102                                 var data_max   = 0;
 103                                 var data_scale = 0;
 104
 105                                 var data_rx_avg = 0;
 106                                 var data_tx_avg = 0;
 107
 108                                 var data_rx_peak = 0;
 109                                 var data_tx_peak = 0;
 110
 111                                 for (var i = data_stamp ? 0 : 1; i < data.length; i++)
 112                                 {
 113                                         /* skip overlapping entries */
 114                                         if (data[i][TIME] <= data_stamp)
 115                                                 continue;
 116
 117                                         /* normalize difference against time interval */
 118                                         var time_delta = data[i][TIME] - data[i-1][TIME];
 119                                         if (time_delta)
 120                                         {
 121                                                 data_rx.push((data[i][RXB] - data[i-1][RXB]) / time_delta);
 122                                                 data_tx.push((data[i][TXB] - data[i-1][TXB]) / time_delta);
 123                                         }
 124                                 }
 125
 126                                 /* cut off outdated entries */
 127                                 data_rx = data_rx.slice(data_rx.length - data_wanted, data_rx.length);
 128                                 data_tx = data_tx.slice(data_tx.length - data_wanted, data_tx.length);
 129
 130                                 /* find peak */
 131                                 for (var i = 0; i < data_rx.length; i++)
 132                                 {
 133                                         data_max = Math.max(data_max, data_rx[i]);
 134                                         data_max = Math.max(data_max, data_tx[i]);
 135
 136                                         data_rx_peak = Math.max(data_rx_peak, data_rx[i]);
 137                                         data_tx_peak = Math.max(data_tx_peak, data_tx[i]);
 138
 139                                         if (i > 0)
 140                                         {
 141                                                 data_rx_avg = (data_rx_avg + data_rx[i]) / 2;
 142                                                 data_tx_avg = (data_tx_avg + data_tx[i]) / 2;
 143                                         }
 144                                         else
 145                                         {
 146                                                 data_rx_avg = data_rx[i];
 147                                                 data_tx_avg = data_tx[i];
 148                                         }
 149                                 }
 150
 151                                 /* remember current timestamp, calculate horizontal scale */
 152                                 data_stamp = data[data.length-1][TIME];
 153                                 data_scale = height / (data_max * 1.1);
 154
 155
 156                                 /* plot data */
 157                                 var pt_rx = '0,' + height;
 158                                 var pt_tx = '0,' + height;
 159
 160                                 var y_rx = 0;
 161                                 var y_tx = 0;
 162
 163                                 for (var i = 0; i < data_rx.length; i++)
 164                                 {
 165                                         var x = i * step;
 166
 167                                         y_rx = height - Math.floor(data_rx[i] * data_scale);
 168                                         y_tx = height - Math.floor(data_tx[i] * data_scale);
 169
 170                                         pt_rx += ' ' + x + ',' + y_rx;
 171                                         pt_tx += ' ' + x + ',' + y_tx;
 172                                 }
 173
 174                                 pt_rx += ' ' + width + ',' + y_rx + ' ' + width + ',' + height;
 175                                 pt_tx += ' ' + width + ',' + y_tx + ' ' + width + ',' + height;
 176
 177
 178                                 line_rx.setAttribute('points', pt_rx);
 179                                 line_tx.setAttribute('points', pt_tx);
 180
 181                                 label_25.firstChild.data = bandwidth_label(1.1 * 0.25 * data_max);
 182                                 label_50.firstChild.data = bandwidth_label(1.1 * 0.50 * data_max);
 183                                 label_75.firstChild.data = bandwidth_label(1.1 * 0.75 * data_max);
 184
 185                                 label_rx_cur.innerHTML = bandwidth_label(data_rx[data_rx.length-1], true);
 186                                 label_tx_cur.innerHTML = bandwidth_label(data_tx[data_tx.length-1], true);
 187
 188                                 label_rx_avg.innerHTML = bandwidth_label(data_rx_avg, true);
 189                                 label_tx_avg.innerHTML = bandwidth_label(data_tx_avg, true);
 190
 191                                 label_rx_peak.innerHTML = bandwidth_label(data_rx_peak, true);
 192                                 label_tx_peak.innerHTML = bandwidth_label(data_tx_peak, true);
 193
 194                                 /* reset timer */
 195                                 window.setTimeout(update_graph, 1000);
 196                         }
 197                 )
 198         }
 199
 200         /* wait for SVG */
 201         window.setTimeout(
 202                 function() {
 203                         G = document.embeds["bwsvg"].getSVGDocument();
 204
 205                         if (!G)
 206                         {
 207                                 window.setTimeout(arguments.callee, 1000);
 208                         }
 209                         else
 210                         {
 211                                 /* find sizes */
 212                                 width       = document.embeds["bwsvg"].offsetWidth  - 2;
 213                                 height      = document.embeds["bwsvg"].offsetHeight - 2;
 214                                 data_wanted = Math.ceil(width / step);
 215
 216                                 /* prefill datasets */
 217                                 for (var i = 0; i < data_wanted; i++)
 218                                 {
 219                                         data_rx[i] = 0;
 220                                         data_tx[i] = 0;
 221                                 }
 222
 223                                 /* find svg elements */
 224                                 line_rx = G.getElementById('rx');
 225                                 line_tx = G.getElementById('tx');
 226
 227                                 label_25 = G.getElementById('label_25');
 228                                 label_50 = G.getElementById('label_50');
 229                                 label_75 = G.getElementById('label_75');
 230
 231                                 label_rx_cur  = document.getElementById('rx_bw_cur');
 232                                 label_rx_avg  = document.getElementById('rx_bw_avg');
 233                                 label_rx_peak = document.getElementById('rx_bw_peak');
 234
 235                                 label_tx_cur  = document.getElementById('tx_bw_cur');
 236                                 label_tx_avg  = document.getElementById('tx_bw_avg');
 237                                 label_tx_peak = document.getElementById('tx_bw_peak');
 238
 239                                 label_scale   = document.getElementById('scale');
 240
 241
 242                                 /* plot horizontal time interval lines */
 243                                 for (var i = step * 60; i < width; i += step * 60)
 244                                 {
 245                                         var line = G.createElementNS('http://www.w3.org/2000/svg', 'line');
 246                                                 line.setAttribute('x1', i);
 247                                                 line.setAttribute('y1', 0);
 248                                                 line.setAttribute('x2', i);
 249                                                 line.setAttribute('y2', '100%');
 250                                                 line.setAttribute('style', 'stroke:black;stroke-width:0.1');
 251
 252                                         var text = G.createElementNS('http://www.w3.org/2000/svg', 'text');
 253                                                 text.setAttribute('x', i + 5);
 254                                                 text.setAttribute('y', 15);
 255                                                 text.setAttribute('style', 'fill:#999999; font-size:9pt');
 256                                                 text.appendChild(G.createTextNode(Math.round(i / step / 60) + 'm'));
 257
 258                                         label_25.parentNode.appendChild(line);
 259                                         label_25.parentNode.appendChild(text);
 260                                 }
 261
 262                                 label_scale.innerHTML = String.format('<%:(%d minute window, %d second interval)%>', data_wanted / 60, 1);
 263
 264                                 /* render datasets, start update interval */
 265                                 update_graph();
 266                         }
 267                 }, 1000
 268         );
 269 //]]></script>
 270
 271 <h2><a id="content" name="content"><%:Realtime Traffic%></a></h2>
 272
 273 <ul class="cbi-tabmenu">
 274         <% for _, dev in ipairs(devices) do %>
 275                 <li class="cbi-tab<%= dev == curdev and "" or "-disabled" %>"><a href="<%=pcdata(dev)%>"><%=pcdata(dev)%></a></li>
 276         <% end %>
 277 </ul>
 278
 279 <embed id="bwsvg" style="width:100%; height:300px; border:1px solid #000000; background-color:#FFFFFF" src="<%=resource%>/bandwidth.svg" />
 280 <div style="text-align:right"><small id="scale">-</small></div>
 281 <br />
 282
 283 <table style="width:100%; table-layout:fixed" cellspacing="5">
 284         <tr>
 285                 <td style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid blue"><%:Inbound:%></strong></td>
 286                 <td id="rx_bw_cur">0 kbit/s<br />(0 KB/s)</td>
 287
 288                 <td style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></td>
 289                 <td id="rx_bw_avg">0 kbit/s<br />(0 KB/s)</td>
 290
 291                 <td style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></td>
 292                 <td id="rx_bw_peak">0 kbit/s<br />(0 KB/s)</td>
 293         </tr>
 294         <tr>
 295                 <td style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid green"><%:Outbound:%></strong></td>
 296                 <td id="tx_bw_cur">0 kbit/s<br />(0 KB/s)</td>
 297
 298                 <td style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></td>
 299                 <td id="tx_bw_avg">0 kbit/s<br />(0 KB/s)</td>
 300
 301                 <td style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></td>
 302                 <td id="tx_bw_peak">0 kbit/s<br />(0 KB/s)</td>
 303         </tr>
 304 </table>
 305
 306
 307 <pre id="debug"></pre>
 308
 309
 310 <%+footer%>