From 2bc02e44b41ffbfcc0ccad59d09409b6bee5bbef Mon Sep 17 00:00:00 2001
From: Jo-Philipp Wich <jow@openwrt.org>
Date: Tue, 13 Sep 2011 07:27:34 +0000
Subject: [PATCH] modules/admin-full: add wireless live stats

---
 .../htdocs/luci-static/resources/wireless.svg |  16 +
 .../luasrc/controller/admin/status.lua        |  28 +-
 .../luasrc/view/admin_status/wireless.htm     | 388 ++++++++++++++++++
 3 files changed, 431 insertions(+), 1 deletion(-)
 create mode 100644 modules/admin-full/htdocs/luci-static/resources/wireless.svg
 create mode 100644 modules/admin-full/luasrc/view/admin_status/wireless.htm

diff --git a/modules/admin-full/htdocs/luci-static/resources/wireless.svg b/modules/admin-full/htdocs/luci-static/resources/wireless.svg
new file mode 100644
index 000000000..99d9840f6
--- /dev/null
+++ b/modules/admin-full/htdocs/luci-static/resources/wireless.svg
@@ -0,0 +1,16 @@
+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+
+<svg width="100%" height="100%" version="1.1" xmlns="http://www.w3.org/2000/svg">
+	<line x1="0" y1="25%" x2="100%" y2="25%" style="stroke:black;stroke-width:0.1" />
+	<text id="label_75" x="20" y="24%" style="fill:#999999; font-size:9pt"> </text>
+
+	<line x1="0" y1="50%" x2="100%" y2="50%" style="stroke:black;stroke-width:0.1" />
+	<text id="label_50" x="20" y="49%" style="fill:#999999; font-size:9pt"> </text>
+
+	<line x1="0" y1="75%" x2="100%" y2="75%" style="stroke:black;stroke-width:0.1" />
+	<text id="label_25" x="20" y="74%" style="fill:#999999; font-size:9pt"> </text>
+
+	<polyline id="rssi" points="" style="fill:blue;fill-opacity:0.4;stroke:blue;stroke-width:1" />
+	<polyline id="noise" points="" style="fill:red;fill-opacity:0.4;stroke:red;stroke-width:1" />
+</svg>
diff --git a/modules/admin-full/luasrc/controller/admin/status.lua b/modules/admin-full/luasrc/controller/admin/status.lua
index 61704ff55..3b2305515 100644
--- a/modules/admin-full/luasrc/controller/admin/status.lua
+++ b/modules/admin-full/luasrc/controller/admin/status.lua
@@ -16,6 +16,8 @@ $Id$
 module("luci.controller.admin.status", package.seeall)
 
 function index()
+	local function _(x) return x end
+
 	entry({"admin", "status"}, alias("admin", "status", "overview"), _("Status"), 20).index = true
 	entry({"admin", "status", "overview"}, template("admin_status/index"), _("Overview"), 1)
 	entry({"admin", "status", "iptables"}, call("action_iptables"), _("Firewall"), 2).leaf = true
@@ -29,7 +31,10 @@ function index()
 	entry({"admin", "status", "bandwidth"}, template("admin_status/bandwidth"), _("Realtime Traffic"), 7).leaf = true
 	entry({"admin", "status", "bandwidth_status"}, call("action_bandwidth")).leaf = true
 
-	entry({"admin", "status", "connections"}, template("admin_status/connections"), _("Realtime Connections"), 8).leaf = true
+	entry({"admin", "status", "wireless"}, template("admin_status/wireless"), _("Realtime Wireless"), 8).leaf = true
+	entry({"admin", "status", "wireless_status"}, call("action_wireless")).leaf = true
+
+	entry({"admin", "status", "connections"}, template("admin_status/connections"), _("Realtime Connections"), 9).leaf = true
 	entry({"admin", "status", "connections_status"}, call("action_connections")).leaf = true
 
 	entry({"admin", "status", "processes"}, cbi("admin_status/processes"), _("Processes"), 20)
@@ -86,6 +91,27 @@ function action_bandwidth()
 	end
 end
 
+function action_wireless()
+	local path  = luci.dispatcher.context.requestpath
+	local iface = path[#path]
+
+	luci.http.prepare_content("application/json")
+
+	local bwc = io.popen("luci-bwc -r %q 2>/dev/null" % iface)
+	if bwc then
+		luci.http.write("[")
+
+		while true do
+			local ln = bwc:read("*l")
+			if not ln then break end
+			luci.http.write(ln)
+		end
+
+		luci.http.write("]")
+		bwc:close()
+	end
+end
+
 function action_load()
 	luci.http.prepare_content("application/json")
 
diff --git a/modules/admin-full/luasrc/view/admin_status/wireless.htm b/modules/admin-full/luasrc/view/admin_status/wireless.htm
new file mode 100644
index 000000000..77b21f77b
--- /dev/null
+++ b/modules/admin-full/luasrc/view/admin_status/wireless.htm
@@ -0,0 +1,388 @@
+<%#
+LuCI - Lua Configuration Interface
+Copyright 2011 Jo-Philipp Wich <xm@subsignal.org>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+	http://www.apache.org/licenses/LICENSE-2.0
+
+$Id$
+
+-%>
+
+<%-
+	local ntm = require "luci.model.network".init()
+
+	local dev
+	local devices = { }
+	for _, dev in luci.util.vspairs(luci.sys.net.devices()) do
+		if dev:match("^wlan%d") or dev:match("^ath%d") or dev:match("^wl%d") then
+			devices[#devices+1] = dev
+		end
+	end
+
+	local curdev = luci.dispatcher.context.requestpath
+	      curdev = curdev[#curdev] ~= "wireless" and curdev[#curdev] or devices[1]
+-%>
+
+<%+header%>
+
+<script type="text/javascript" src="<%=resource%>/cbi.js"></script>
+<script type="text/javascript">//<![CDATA[
+	var bwxhr = new XHR();
+
+	var G, G2;
+	var TIME  = 0;
+	var RATE  = 1;
+	var RSSI  = 2;
+	var NOISE = 3;
+
+	var width  = 760;
+	var height = 300;
+	var step   = 5;
+
+	var data_wanted = Math.floor(width / step);
+	var data_fill   = 0;
+	var data_stamp  = 0;
+
+	var data_rssi = [ ];
+	var data_noise = [ ];
+	var data_rate = [ ];
+
+	var line_rssi;
+	var line_noise;
+	var line_rate;
+
+	var label_25, label_25_2;
+	var label_50, label_50_2;
+	var label_75, label_75_2;
+
+	var label_rssi_cur;
+	var label_rssi_avg;
+	var label_rssi_peak;
+
+	var label_noise_cur;
+	var label_noise_avg;
+	var label_noise_peak;
+
+	var label_rate_cur;
+	var label_rate_avg;
+	var label_rate_peak;
+
+	var label_scale;
+
+
+	function update_graph()
+	{
+		bwxhr.get('<%=build_url("admin/status/wireless_status", curdev)%>', null,
+			function(x, data)
+			{
+				var noise_floor = 255;
+				var rate_floor = 60000;
+
+				for (var i = 0; i < data.length; i++) {
+					noise_floor = Math.min(noise_floor, data[i][NOISE]);
+					rate_floor = Math.min(rate_floor, data[i][RATE]);
+				}
+
+				noise_floor -= 5;
+
+				var data_max   = 0;
+				var data_scale = 0;
+				var data_max_2   = 0;
+				var data_scale_2 = 0;
+
+				var data_rssi_avg = 0;
+				var data_noise_avg = 0;
+				var data_rate_avg = 0;
+
+				var data_rssi_peak = 0;
+				var data_noise_peak = 0;
+				var data_rate_peak = 0;
+
+				for (var i = data_stamp ? 0 : 1; i < data.length; i++)
+				{
+					/* skip overlapping entries */
+					if (data[i][TIME] <= data_stamp)
+						continue;
+
+					data_rssi.push(data[i][RSSI] - noise_floor);
+					data_noise.push(data[i][NOISE] - noise_floor);
+					data_rate.push(Math.floor(data[i][RATE] / 100));
+				}
+
+				/* cut off outdated entries */
+				data_rssi = data_rssi.slice(data_rssi.length - data_wanted, data_rssi.length);
+				data_noise = data_noise.slice(data_noise.length - data_wanted, data_noise.length);
+				data_rate = data_rate.slice(data_rate.length - data_wanted, data_rate.length);
+
+				/* find peak */
+				for (var i = 0; i < data_rssi.length; i++)
+				{
+					data_max = Math.max(data_max, data_rssi[i]);
+					data_max_2 = Math.max(data_max_2, data_rate[i]);
+
+					data_rssi_peak = Math.max(data_rssi_peak, data_rssi[i]);
+					data_noise_peak = Math.max(data_noise_peak, data_noise[i]);
+					data_rate_peak = Math.max(data_rate_peak, data_rate[i]);
+
+					if (i > 0)
+					{
+						data_rssi_avg = (data_rssi_avg + data_rssi[i]) / 2;
+						data_noise_avg = (data_noise_avg + data_noise[i]) / 2;
+						data_rate_avg = (data_rate_avg + data_rate[i]) / 2;
+					}
+					else
+					{
+						data_rssi_avg = data_rssi[i];
+						data_noise_avg = data_noise[i];
+						data_rate_avg = data_rate[i];
+					}
+				}
+
+				/* remember current timestamp, calculate horizontal scale */
+				data_stamp = data[data.length-1][TIME];
+				data_scale = (height / (data_max * 1.1)).toFixed(1);
+				data_scale_2 = (height / (data_max_2 * 1.1)).toFixed(1);
+
+				/* plot data */
+				var pt_rssi = '0,' + height;
+				var pt_noise = '0,' + height;
+				var pt_rate = '0,' + height;
+
+				var y_rssi = 0;
+				var y_noise = 0;
+				var y_rate = 0;
+
+				for (var i = 0; i < data_rssi.length; i++)
+				{
+					var x = i * step;
+
+					y_rssi = height - Math.floor(data_rssi[i] * data_scale);
+					y_noise = height - Math.floor(data_noise[i] * data_scale);
+					y_rate = height - Math.floor(data_rate[i] * data_scale_2);
+
+					y_rssi -= Math.floor(y_rssi % (1/data_scale));
+					y_noise -= Math.floor(y_noise % (1/data_scale));
+
+					pt_rssi += ' ' + x + ',' + y_rssi;
+					pt_noise += ' ' + x + ',' + y_noise;
+					pt_rate += ' ' + x + ',' + y_rate;
+				}
+
+				pt_rssi += ' ' + width + ',' + y_rssi + ' ' + width + ',' + height;
+				pt_noise += ' ' + width + ',' + y_noise + ' ' + width + ',' + height;
+				pt_rate += ' ' + width + ',' + y_rate + ' ' + width + ',' + height;
+
+				line_rssi.setAttribute('points', pt_rssi);
+				line_noise.setAttribute('points', pt_noise);
+				line_rate.setAttribute('points', pt_rate);
+
+				function wireless_label(dbm, noise)
+				{
+					if (noise)
+						return String.format("%d dBm (SNR %d dBm)", noise_floor + dbm - 255, dbm - noise);
+					else
+						return String.format("%d dBm", noise_floor + dbm - 255);
+				}
+
+				function rate_label(mbit)
+				{
+					return String.format("%d MBit/s", mbit);
+				}
+
+				label_25.firstChild.data = wireless_label(1.1 * 0.25 * data_max);
+				label_50.firstChild.data = wireless_label(1.1 * 0.50 * data_max);
+				label_75.firstChild.data = wireless_label(1.1 * 0.75 * data_max);
+
+				label_25_2.firstChild.data = rate_label(1.1 * 0.25 * data_max_2);
+				label_50_2.firstChild.data = rate_label(1.1 * 0.50 * data_max_2);
+				label_75_2.firstChild.data = rate_label(1.1 * 0.75 * data_max_2);
+
+				label_rssi_cur.innerHTML = wireless_label(data_rssi[data_rssi.length-1], data_noise[data_noise.length-1]);
+				label_noise_cur.innerHTML = wireless_label(data_noise[data_noise.length-1]);
+
+				label_rssi_avg.innerHTML = wireless_label(data_rssi_avg, data_noise_avg);
+				label_noise_avg.innerHTML = wireless_label(data_noise_avg);
+
+				label_rssi_peak.innerHTML = wireless_label(data_rssi_peak, data_noise_peak);
+				label_noise_peak.innerHTML = wireless_label(data_noise_peak);
+
+				label_rate_cur.innerHTML = rate_label(data_rate[data_rate.length-1]);
+				label_rate_avg.innerHTML = rate_label(data_rate_avg);
+				label_rate_peak.innerHTML = rate_label(data_rate_peak);
+
+				/* reset timer */
+				window.setTimeout(update_graph, 1000);
+			}
+		)
+	}
+
+	/* wait for SVG */
+	window.setTimeout(
+		function() {
+			var svg = document.getElementById('iwsvg');
+			var svg2 = document.getElementById('iwsvg2');
+
+			try {
+				G = svg.getSVGDocument
+					? svg.getSVGDocument() : svg.contentDocument;
+				G2 = svg2.getSVGDocument
+					? svg2.getSVGDocument() : svg2.contentDocument;
+			}
+			catch(e) {
+				G = document.embeds['iwsvg'].getSVGDocument();
+				G2 = document.embeds['iwsvg2'].getSVGDocument();
+			}
+
+			if (!G || !G2)
+			{
+				window.setTimeout(arguments.callee, 1000);
+			}
+			else
+			{
+				/* find sizes */
+				width       = svg.offsetWidth  - 2;
+				height      = svg.offsetHeight - 2;
+				data_wanted = Math.ceil(width / step);
+
+				/* prefill datasets */
+				for (var i = 0; i < data_wanted; i++)
+				{
+					data_rssi[i] = 0;
+					data_noise[i] = 0;
+					data_rate[i] = 0;
+				}
+
+				/* find svg elements */
+				line_rssi = G.getElementById('rssi');
+				line_noise = G.getElementById('noise');
+				line_rate = G2.getElementById('rate');
+
+				label_25 = G.getElementById('label_25');
+				label_50 = G.getElementById('label_50');
+				label_75 = G.getElementById('label_75');
+				label_25_2 = G2.getElementById('label_25');
+				label_50_2 = G2.getElementById('label_50');
+				label_75_2 = G2.getElementById('label_75');
+
+				label_rssi_cur  = document.getElementById('rssi_bw_cur');
+				label_rssi_avg  = document.getElementById('rssi_bw_avg');
+				label_rssi_peak = document.getElementById('rssi_bw_peak');
+
+				label_noise_cur  = document.getElementById('noise_bw_cur');
+				label_noise_avg  = document.getElementById('noise_bw_avg');
+				label_noise_peak = document.getElementById('noise_bw_peak');
+
+				label_rate_cur  = document.getElementById('rate_bw_cur');
+				label_rate_avg  = document.getElementById('rate_bw_avg');
+				label_rate_peak = document.getElementById('rate_bw_peak');
+
+				label_scale   = document.getElementById('scale');
+				label_scale_2 = document.getElementById('scale2');
+
+
+				/* plot horizontal time interval lines */
+				for (var i = step * 60; i < width; i += step * 60)
+				{
+					var line = G.createElementNS('http://www.w3.org/2000/svg', 'line');
+						line.setAttribute('x1', i);
+						line.setAttribute('y1', 0);
+						line.setAttribute('x2', i);
+						line.setAttribute('y2', '100%');
+						line.setAttribute('style', 'stroke:black;stroke-width:0.1');
+
+					var text = G.createElementNS('http://www.w3.org/2000/svg', 'text');
+						text.setAttribute('x', i + 5);
+						text.setAttribute('y', 15);
+						text.setAttribute('style', 'fill:#999999; font-size:9pt');
+						text.appendChild(G.createTextNode(Math.round(i / step / 60) + 'm'));
+
+					label_25.parentNode.appendChild(line);
+					label_25.parentNode.appendChild(text);
+
+
+					var line2 = G2.createElementNS('http://www.w3.org/2000/svg', 'line');
+						line2.setAttribute('x1', i);
+						line2.setAttribute('y1', 0);
+						line2.setAttribute('x2', i);
+						line2.setAttribute('y2', '100%');
+						line2.setAttribute('style', 'stroke:black;stroke-width:0.1');
+
+					var text2 = G2.createElementNS('http://www.w3.org/2000/svg', 'text');
+						text2.setAttribute('x', i + 5);
+						text2.setAttribute('y', 15);
+						text2.setAttribute('style', 'fill:#999999; font-size:9pt');
+						text2.appendChild(G.createTextNode(Math.round(i / step / 60) + 'm'));
+
+					label_25_2.parentNode.appendChild(line2);
+					label_25_2.parentNode.appendChild(text2);
+				}
+
+				label_scale.innerHTML = String.format('<%:(%d minute window, %d second interval)%>', data_wanted / 60, 1);
+				label_scale_2.innerHTML = String.format('<%:(%d minute window, %d second interval)%>', data_wanted / 60, 1);
+
+				/* render datasets, start update interval */
+				update_graph();
+			}
+		}, 1000
+	);
+//]]></script>
+
+<h2><a id="content" name="content"><%:Realtime Wireless%></a></h2>
+
+<ul class="cbi-tabmenu">
+	<% for _, dev in ipairs(devices) do %>
+		<li class="cbi-tab<%= dev == curdev and "" or "-disabled" %>"><a href="<%=pcdata(dev)%>"><%=pcdata(dev)%></a></li>
+	<% end %>
+</ul>
+
+<embed id="iwsvg" style="width:100%; height:300px; border:1px solid #000000; background-color:#FFFFFF" src="<%=resource%>/wireless.svg" />
+<div style="text-align:right"><small id="scale">-</small></div>
+<br />
+
+<table style="width:100%; table-layout:fixed" cellspacing="5">
+	<tr>
+		<td style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid blue"><%:Signal:%></strong></td>
+		<td id="rssi_bw_cur">0 dBm</td>
+
+		<td style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></td>
+		<td id="rssi_bw_avg">0 dBm</td>
+
+		<td style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></td>
+		<td id="rssi_bw_peak">0 dBm</td>
+	</tr>
+	<tr>
+		<td style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid red"><%:Noise:%></strong></td>
+		<td id="noise_bw_cur">0 dBm</td>
+
+		<td style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></td>
+		<td id="noise_bw_avg">0 dBm</td>
+
+		<td style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></td>
+		<td id="noise_bw_peak">0 dBm</td>
+	</tr>
+</table>
+
+<br />
+
+<embed id="iwsvg2" style="width:100%; height:300px; border:1px solid #000000; background-color:#FFFFFF" src="<%=resource%>/wifirate.svg" />
+<div style="text-align:right"><small id="scale2">-</small></div>
+<br />
+
+<table style="width:100%; table-layout:fixed" cellspacing="5">
+	<tr>
+		<td style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid green"><%:Phy Rate:%></strong></td>
+		<td id="rate_bw_cur">0 MBit/s</td>
+
+		<td style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></td>
+		<td id="rate_bw_avg">0 MBit/s</td>
+
+		<td style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></td>
+		<td id="rate_bw_peak">0 MBit/s</td>
+	</tr>
+</table>
+
+<%+footer%>
-- 
2.25.1