2 LuCI - Lua Configuration Interface
3 Copyright
2010 Jo-Philipp Wich
<xm@subsignal.org
>
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
9 http://www.apache.org/licenses/LICENSE-
2.0
18 for _, dev in luci.util.kspairs(luci.sys.net.devices()) do
20 devices[#devices+
1] = dev
24 local curdev = luci.dispatcher.context.requestpath
25 curdev = curdev[#curdev] ~=
"bandwidth" and curdev[#curdev] or devices[
1]
30 <script type=
"text/javascript" src=
"<%=resource%>/cbi.js"></script>
31 <script type=
"text/javascript">//<![CDATA[
32 var bwxhr = new XHR();
45 var data_wanted = Math.floor(width / step);
70 function bandwidth_label(bytes, br)
73 var kby = (bytes /
1024);
82 var kbi = (bytes *
8 /
1024);
90 return String.format(
"%f %s/s%s(%f %s/s)",
97 function update_graph()
99 bwxhr.get('<%=build_url(
"admin/status/bandwidth_status", curdev)%
>', null,
108 var data_rx_peak =
0;
109 var data_tx_peak =
0;
111 for (var i = data_stamp ?
0 :
1; i < data.length; i++)
113 /* skip overlapping entries */
114 if (data[i][TIME] <= data_stamp)
117 /* normalize difference against time interval */
118 var time_delta = data[i][TIME] - data[i-
1][TIME];
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);
126 /* cut off outdated entries */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);
131 for (var i =
0; i < data_rx.length; i++)
133 data_max = Math.max(data_max, data_rx[i]);
134 data_max = Math.max(data_max, data_tx[i]);
136 data_rx_peak = Math.max(data_rx_peak, data_rx[i]);
137 data_tx_peak = Math.max(data_tx_peak, data_tx[i]);
141 data_rx_avg = (data_rx_avg + data_rx[i]) /
2;
142 data_tx_avg = (data_tx_avg + data_tx[i]) /
2;
146 data_rx_avg = data_rx[i];
147 data_tx_avg = data_tx[i];
151 /* remember current timestamp, calculate horizontal scale */
152 data_stamp = data[data.length-
1][TIME];
153 data_scale = height / (data_max *
1.1);
157 var pt_rx = '
0,' + height;
158 var pt_tx = '
0,' + height;
163 for (var i =
0; i < data_rx.length; i++)
167 y_rx = height - Math.floor(data_rx[i] * data_scale);
168 y_tx = height - Math.floor(data_tx[i] * data_scale);
170 pt_rx += ' ' + x + ',' + y_rx;
171 pt_tx += ' ' + x + ',' + y_tx;
174 pt_rx += ' ' + width + ',' + y_rx + ' ' + width + ',' + height;
175 pt_tx += ' ' + width + ',' + y_tx + ' ' + width + ',' + height;
178 line_rx.setAttribute('points', pt_rx);
179 line_tx.setAttribute('points', pt_tx);
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);
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);
188 label_rx_avg.innerHTML = bandwidth_label(data_rx_avg, true);
189 label_tx_avg.innerHTML = bandwidth_label(data_tx_avg, true);
191 label_rx_peak.innerHTML = bandwidth_label(data_rx_peak, true);
192 label_tx_peak.innerHTML = bandwidth_label(data_tx_peak, true);
195 window.setTimeout(update_graph,
1000);
203 G = document.embeds[
"bwsvg"].getSVGDocument();
207 window.setTimeout(arguments.callee,
1000);
212 width = document.embeds[
"bwsvg"].offsetWidth -
2;
213 height = document.embeds[
"bwsvg"].offsetHeight -
2;
214 data_wanted = Math.ceil(width / step);
216 /* prefill datasets */
217 for (var i =
0; i < data_wanted; i++)
223 /* find svg elements */
224 line_rx = G.getElementById('rx');
225 line_tx = G.getElementById('tx');
227 label_25 = G.getElementById('label_25');
228 label_50 = G.getElementById('label_50');
229 label_75 = G.getElementById('label_75');
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');
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');
239 label_scale = document.getElementById('scale');
242 /* plot horizontal time interval lines */
243 for (var i = step *
60; i < width; i += step *
60)
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');
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'));
258 label_25.parentNode.appendChild(line);
259 label_25.parentNode.appendChild(text);
262 label_scale.innerHTML = String.format('<%:(%d minute window, %d second interval)%
>', data_wanted /
60,
1);
264 /* render datasets, start update interval */
271 <h2><a id=
"content" name=
"content"><%:Realtime Traffic%
></a></h2>
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>
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>
283 <table style=
"width:100%; table-layout:fixed" cellspacing=
"5">
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>
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>
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>
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>
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>
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>
307 <pre id=
"debug"></pre>