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
16 local ntm = require "luci.model.network".init()
20 for _, dev in luci.util.vspairs(luci.sys.net.devices()) do
21 if dev ~= "lo" and not ntm:ignore_interface(dev) then
22 devices[#devices+1] = dev
26 local curdev = luci.dispatcher.context.requestpath
27 curdev = curdev[#curdev] ~= "bandwidth" and curdev[#curdev] or devices[1]
32 <script type="text/javascript" src="<%=resource%>/cbi.js"></script>
33 <script type="text/javascript">//<![CDATA[
34 var bwxhr = new XHR();
47 var data_wanted = Math.floor(width / step);
72 function bandwidth_label(bytes, br)
75 var kby = (bytes / 1024);
84 var kbi = (bytes * 8 / 1024);
92 return String.format("%f %s/s%s(%f %s/s)",
99 function update_graph()
101 bwxhr.get('<%=build_url("admin/status/bandwidth_status", curdev)%>', null,
110 var data_rx_peak = 0;
111 var data_tx_peak = 0;
113 for (var i = data_stamp ? 0 : 1; i < data.length; i++)
115 /* skip overlapping entries */
116 if (data[i][TIME] <= data_stamp)
119 /* normalize difference against time interval */
120 var time_delta = data[i][TIME] - data[i-1][TIME];
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);
128 /* cut off outdated entries */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);
133 for (var i = 0; i < data_rx.length; i++)
135 data_max = Math.max(data_max, data_rx[i]);
136 data_max = Math.max(data_max, data_tx[i]);
138 data_rx_peak = Math.max(data_rx_peak, data_rx[i]);
139 data_tx_peak = Math.max(data_tx_peak, data_tx[i]);
143 data_rx_avg = (data_rx_avg + data_rx[i]) / 2;
144 data_tx_avg = (data_tx_avg + data_tx[i]) / 2;
148 data_rx_avg = data_rx[i];
149 data_tx_avg = data_tx[i];
153 /* remember current timestamp, calculate horizontal scale */
154 data_stamp = data[data.length-1][TIME];
155 data_scale = height / (data_max * 1.1);
159 var pt_rx = '0,' + height;
160 var pt_tx = '0,' + height;
165 for (var i = 0; i < data_rx.length; i++)
169 y_rx = height - Math.floor(data_rx[i] * data_scale);
170 y_tx = height - Math.floor(data_tx[i] * data_scale);
172 pt_rx += ' ' + x + ',' + y_rx;
173 pt_tx += ' ' + x + ',' + y_tx;
176 pt_rx += ' ' + width + ',' + y_rx + ' ' + width + ',' + height;
177 pt_tx += ' ' + width + ',' + y_tx + ' ' + width + ',' + height;
180 line_rx.setAttribute('points', pt_rx);
181 line_tx.setAttribute('points', pt_tx);
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);
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);
190 label_rx_avg.innerHTML = bandwidth_label(data_rx_avg, true);
191 label_tx_avg.innerHTML = bandwidth_label(data_tx_avg, true);
193 label_rx_peak.innerHTML = bandwidth_label(data_rx_peak, true);
194 label_tx_peak.innerHTML = bandwidth_label(data_tx_peak, true);
197 window.setTimeout(update_graph, 1000);
205 var svg = document.getElementById('bwsvg');
208 G = svg.getSVGDocument
209 ? svg.getSVGDocument() : svg.contentDocument;
212 G = document.embeds['bwsvg'].getSVGDocument();
217 window.setTimeout(arguments.callee, 1000);
222 width = svg.offsetWidth - 2;
223 height = svg.offsetHeight - 2;
224 data_wanted = Math.ceil(width / step);
226 /* prefill datasets */
227 for (var i = 0; i < data_wanted; i++)
233 /* find svg elements */
234 line_rx = G.getElementById('rx');
235 line_tx = G.getElementById('tx');
237 label_25 = G.getElementById('label_25');
238 label_50 = G.getElementById('label_50');
239 label_75 = G.getElementById('label_75');
241 label_rx_cur = document.getElementById('rx_bw_cur');
242 label_rx_avg = document.getElementById('rx_bw_avg');
243 label_rx_peak = document.getElementById('rx_bw_peak');
245 label_tx_cur = document.getElementById('tx_bw_cur');
246 label_tx_avg = document.getElementById('tx_bw_avg');
247 label_tx_peak = document.getElementById('tx_bw_peak');
249 label_scale = document.getElementById('scale');
252 /* plot horizontal time interval lines */
253 for (var i = step * 60; i < width; i += step * 60)
255 var line = G.createElementNS('http://www.w3.org/2000/svg', 'line');
256 line.setAttribute('x1', i);
257 line.setAttribute('y1', 0);
258 line.setAttribute('x2', i);
259 line.setAttribute('y2', '100%');
260 line.setAttribute('style', 'stroke:black;stroke-width:0.1');
262 var text = G.createElementNS('http://www.w3.org/2000/svg', 'text');
263 text.setAttribute('x', i + 5);
264 text.setAttribute('y', 15);
265 text.setAttribute('style', 'fill:#999999; font-size:9pt');
266 text.appendChild(G.createTextNode(Math.round(i / step / 60) + 'm'));
268 label_25.parentNode.appendChild(line);
269 label_25.parentNode.appendChild(text);
272 label_scale.innerHTML = String.format('<%:(%d minute window, %d second interval)%>', data_wanted / 60, 1);
274 /* render datasets, start update interval */
281 <h2><a id="content" name="content"><%:Realtime Traffic%></a></h2>
283 <ul class="cbi-tabmenu">
284 <% for _, dev in ipairs(devices) do %>
285 <li class="cbi-tab<%= dev == curdev and "" or "-disabled" %>"><a href="<%=pcdata(dev)%>"><%=pcdata(dev)%></a></li>
289 <embed id="bwsvg" style="width:100%; height:300px; border:1px solid #000000; background-color:#FFFFFF" src="<%=resource%>/bandwidth.svg" />
290 <div style="text-align:right"><small id="scale">-</small></div>
293 <table style="width:100%; table-layout:fixed" cellspacing="5">
295 <td style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid blue"><%:Inbound:%></strong></td>
296 <td id="rx_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="rx_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="rx_bw_peak">0 kbit/s<br />(0 KB/s)</td>
305 <td style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid green"><%:Outbound:%></strong></td>
306 <td id="tx_bw_cur">0 kbit/s<br />(0 KB/s)</td>
308 <td style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></td>
309 <td id="tx_bw_avg">0 kbit/s<br />(0 KB/s)</td>
311 <td style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></td>
312 <td id="tx_bw_peak">0 kbit/s<br />(0 KB/s)</td>