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