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126 /* cut off outdated entries */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>