<?php
/*
Modified by Michael Zoon <michael.zoon@freenas.org>
Copyright (C) 2010-2011 Michael Zoon <michael.zoon@freenas.org>.
All rights reserved.
Part of FreeNAS (http://www.freenas.org)
Copyright (C) 2005-2011 Olivier Cochard-Labbe <olivier@freenas.org>.
All rights reserved.
Based on m0n0wall (http://m0n0.ch/wall)
Copyright (C) 2003-2006 Manuel Kasper <mk@neon1.net>.
All rights reserved.
Copyright (C) 2004-2006 T. Lechat <dev@lechat.org>, Manuel Kasper <mk@neon1.net>
and Jonathan Watt <jwatt@jwatt.org>.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
require("auth.inc");
require("guiconfig.inc");
header("Content-type: image/svg+xml");
/********** HTTP GET Based Conf ***********/
$ifnum=@htmlspecialchars($_GET["ifnum"]); // BSD / SNMP interface name / number
$ifname=@htmlspecialchars($_GET["ifname"]) ? htmlspecialchars($_GET["ifname"]) : "Interface $ifnum"; //Interface name that will be showed on top right of graph
/********* Other conf *******/
$scale_type="follow"; //Autoscale default setup : "up" = only increase scale; "follow" = increase and decrease scale according to current graphed datas
$nb_plot=120; //NB plot in graph
$time_interval=1; //Refresh time Interval
$unit="bits"; //Initial unit type: "bits" or "bytes"
$fetch_link = "stats.php?if=$ifnum";
//SVG attributes
$attribs['bg']='fill="#000" stroke="none" stroke-width="0" opacity="1"';
$attribs['axis']='fill="black" stroke="black"';
$attribs['in']='fill="#00CC00" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="7"';
$attribs['out']='fill="#FF0000" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="7"';
$attribs['legend']='fill="white" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4"';
$attribs['graph_in']='fill="none" stroke="#00CC00" stroke-opacity="0.8"';
$attribs['graph_out']='fill="none" stroke="#FF0000" stroke-opacity="0.8"';
$attribs['grid_txt']='fill="gray" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="6"';
$attribs['grid']='stroke="#C3C3C3" stroke-opacity="0.5"';
$attribs['switch_unit']='fill="#FFFFFF" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4" text-decoration="underline"';
$attribs['switch_scale']='fill="#FFFFFF" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4" text-decoration="underline"';
$attribs['error']='fill="red" font-family="Arial" font-size="4"';
$attribs['collect_initial']='fill="gray" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4"';
//Error text if we cannot fetch data : depends on which method is used
$error_text = gettext("Cannot get data about interface") . " $ifnum";
$height=100; //SVG internal height : do not modify
$width=200; //SVG internal width : do not modify
$encoding = system_get_language_codeset();
/********* Graph DATA **************/
header("Last-Modified: " . gmdate( "D, j M Y H:i:s" ) . " GMT");
header("Expires: " . gmdate( "D, j M Y H:i:s", time() ) . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate"); // HTTP/1.1
header("Cache-Control: post-check=0, pre-check=0", FALSE);
header("Pragma: no-cache"); // HTTP/1.0
header("Content-type: image/svg+xml");
echo "<?xml version=\"1.0\" encoding=\"{$encoding}\"?>\n";
?>
<svg width="100%" height="100%" viewBox="0 0 <?=$width?> <?=$height?>" preserveAspectRatio="none" xml:space="preserve" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" onload="init(evt)">
<g id="graph">
<rect id="bg" x1="0" y1="0" width="100%" height="100%" <?=$attribs['bg']?>/>
<line id="axis_x" x1="0" y1="0" x2="0" y2="100%" <?=$attribs['axis']?>/>
<line id="axis_y" x1="0" y1="100%" x2="100%" y2="100%" <?=$attribs['axis']?>/>
<path id="graph_out" d="M0 <?=$height?> L 0 <?=$height?>" <?=$attribs['graph_out']?>/>
<path id="graph_in" d="M0 <?=$height?> L 0 <?=$height?>" <?=$attribs['graph_in']?>/>
<path id="grid" d="M0 <?=$height/4*1?> L <?=$width?> <?=$height/4*1?> M0 <?=$height/4*2?> L <?=$width?> <?=$height/4*2?> M0 <?=$height/4*3?> L <?=$width?> <?=$height/4*3?>" <?=$attribs['grid']?>/>
<text id="grid_txt1" x="<?=$width*0.99?>" y="<?=$height/4*1?>" <?=$attribs['grid_txt']?> text-anchor="end">75%</text>
<text id="grid_txt2" x="<?=$width*0.99?>" y="<?=$height/4*2?>" <?=$attribs['grid_txt']?> text-anchor="end">50%</text>
<text id="grid_txt3" x="<?=$width*0.99?>" y="<?=$height/4*3?>" <?=$attribs['grid_txt']?> text-anchor="end">25%</text>
<text id="graph_in_lbl" x="5" y="8" <?=$attribs['in']?>><?=gettext("In");?> <tspan id="graph_in_txt" <?=$attribs['in']?>> </tspan></text>
<text id="graph_out_lbl" x="5" y="16" <?=$attribs['out']?>><?=gettext("Out");?> <tspan id="graph_out_txt" <?=$attribs['out']?>> </tspan></text>
<text id="switch_unit" x="<?=$width*0.60?>" y="5" <?=$attribs['switch_unit']?>><?=sprintf(gettext("Switch to %s/s"), ("bits" === $unit) ? "bytes" : "bits");?></text>
<text id="switch_scale" x="<?=$width*0.60?>" y="11" <?=$attribs['switch_scale']?>><?=gettext("AutoScale");?> (<?=("up" === $scale_type) ? gettext("Up") : gettext("Follow");?>)</text>
<text id="datetime" x="<?=$width*0.40?>" y="5" <?=$attribs['legend']?>> </text>
<polygon id="axis_arrow_x" <?=$attribs['axis']?> points="<?=($width) . "," . ($height)?> <?=($width-2) . "," . ($height-2)?> <?=($width-2) . "," . $height?>"/>
<text id="error" x="<?=$width*0.5?>" y="<?=$height*0.4?>" visibility="hidden" <?=$attribs['error']?> text-anchor="middle"><?=$error_text?></text>
<text id="collect_initial" x="<?=$width*0.5?>" y="<?=$height*0.4?>" visibility="hidden" <?=$attribs['collect_initial']?> text-anchor="middle"><?=gettext("Collecting initial data, please wait...");?></text>
</g>
<script type="text/ecmascript">
<![CDATA[
/**
* getURL is a proprietary Adobe function, but it's simplicity has made it very
* popular. If getURL is undefined we spin our own by wrapping XMLHttpRequest.
*/
if (typeof getURL == 'undefined') {
getURL = function(url, callback) {
if (!url)
throw 'No URL for getURL';
try {
if (typeof callback.operationComplete == 'function')
callback = callback.operationComplete;
} catch (e) {}
if (typeof callback != 'function')
throw 'No callback function for getURL';
var http_request = null;
if (typeof XMLHttpRequest != 'undefined') {
http_request = new XMLHttpRequest();
}
else if (typeof ActiveXObject != 'undefined') {
try {
http_request = new ActiveXObject('Msxml2.XMLHTTP');
} catch (e) {
try {
http_request = new ActiveXObject('Microsoft.XMLHTTP');
} catch (e) {}
}
}
if (!http_request)
throw 'Both getURL and XMLHttpRequest are undefined';
http_request.onreadystatechange = function() {
if (http_request.readyState == 4) {
callback( { success : true,
content : http_request.responseText,
contentType : http_request.getResponseHeader("Content-Type") } );
}
}
http_request.open('GET', url, true);
http_request.send(null);
}
}
var SVGDoc = null;
var last_ifin = 0;
var last_ifout = 0;
var last_ugmt = 0;
var max = 0;
var plot_in = new Array();
var plot_out = new Array();
var max_num_points = <?=$nb_plot?>; // maximum number of plot data points
var step = <?=$width?> / max_num_points ;
var unit = '<?=$unit;?>';
var scale_type = '<?=$scale_type?>';
function formatString(x) {
return (x < 0 || x > 9 ? "" : "0") + x;
}
function init(evt) {
SVGDoc = evt.target.ownerDocument;
SVGDoc.getElementById("switch_unit").addEventListener("mousedown", switch_unit, false);
SVGDoc.getElementById("switch_scale").addEventListener("mousedown", switch_scale, false);
fetch_data();
}
function switch_unit(event)
{
SVGDoc.getElementById('switch_unit').firstChild.data = '<?=gettext("Switch to");?> ' + unit + '/s';
unit = (unit == 'bits') ? 'bytes' : 'bits';
}
function switch_scale(event)
{
scale_type = (scale_type == 'up') ? 'follow' : 'up';
scale_type_text = (scale_type == 'up') ? '<?=gettext("Up");?>' : '<?=gettext("Follow");?>';
SVGDoc.getElementById('switch_scale').firstChild.data = '<?=gettext("AutoScale");?> (' + scale_type_text + ')';
}
function fetch_data() {
getURL('<?=$fetch_link?>', plot_data);
}
function plot_data(obj) {
// Show datetimelegend
var now = new Date();
var datetime = (now.getMonth()+1) + "/" + now.getDate() + "/" + now.getFullYear() + ' ' +
formatString(now.getHours()) + ":" + formatString(now.getMinutes()) + ":" + formatString(now.getSeconds());
SVGDoc.getElementById('datetime').firstChild.data = datetime;
if (!obj.success)
return handle_error(); // getURL failed to get data
var t = obj.content.split("|");
var ugmt = parseFloat(t[0]); // ugmt is an unixtimestamp style
var ifin = parseInt(t[1]); // number of bytes received by the interface
var ifout = parseInt(t[2]); // number of bytes sent by the interface
var scale;
if (!isNumber(ifin) || !isNumber(ifout))
return handle_error();
var diff_ugmt = ugmt - last_ugmt;
var diff_ifin = ifin - last_ifin;
var diff_ifout = ifout - last_ifout;
if (diff_ugmt == 0)
diff_ugmt = 1; /* avoid division by zero */
last_ugmt = ugmt;
last_ifin = ifin;
last_ifout = ifout;
switch (plot_in.length) {
case 0:
SVGDoc.getElementById("collect_initial").setAttributeNS(null, 'visibility', 'visible');
plot_in[0] = diff_ifin / diff_ugmt;
plot_out[0] = diff_ifout / diff_ugmt;
setTimeout('fetch_data()',<?=1000*$time_interval?>);
return;
case 1:
SVGDoc.getElementById("collect_initial").setAttributeNS(null, 'visibility', 'hidden');
break;
case max_num_points:
// shift plot to left if the maximum number of plot points has been reached
var i = 0;
while (i < max_num_points) {
plot_in[i] = plot_in[i+1];
plot_out[i] = plot_out[++i];
}
plot_in.length--;
plot_out.length--;
}
plot_in[plot_in.length] = diff_ifin / diff_ugmt;
plot_out[plot_out.length]= diff_ifout / diff_ugmt;
var index_plot = plot_in.length - 1;
SVGDoc.getElementById('graph_in_txt').firstChild.data = formatSpeed(plot_in[index_plot], unit);
SVGDoc.getElementById('graph_out_txt').firstChild.data = formatSpeed(plot_out[index_plot], unit);
/* determine peak for sensible scaling */
if (scale_type == 'up') {
if (plot_in[index_plot] > max)
max = plot_in[index_plot];
if (plot_out[index_plot] > max)
max = plot_out[index_plot];
}
else if (scale_type == 'follow') {
i = 0;
max = 0;
while (i < plot_in.length) {
if (plot_in[i] > max)
max = plot_in[i];
if (plot_out[i] > max)
max = plot_out[i];
i++;
}
}
var rmax; // max, rounded up
if (unit == 'bits') {
/* round up max, such that
100 kbps -> 200 kbps -> 400 kbps -> 800 kbps -> 1 Mbps -> 2 Mbps -> ... */
rmax = 12500;
i = 0;
while (max > rmax) {
i++;
if (i && (i % 4 == 0))
rmax *= 1.25;
else
rmax *= 2;
}
} else {
/* round up max, such that
10 KB/s -> 20 KB/s -> 40 KB/s -> 80 KB/s -> 100 KB/s -> 200 KB/s -> 400 KB/s -> 800 KB/s -> 1 MB/s ... */
rmax = 10240;
i = 0;
while (max > rmax) {
i++;
if (i && (i % 4 == 0))
rmax *= 1.25;
else
rmax *= 2;
if (i == 8)
rmax *= 1.024;
}
}
scale = <?=$height?> / rmax;
/* change labels accordingly */
SVGDoc.getElementById('grid_txt1').firstChild.data = formatSpeed(3*rmax/4,unit);
SVGDoc.getElementById('grid_txt2').firstChild.data = formatSpeed(2*rmax/4,unit);
SVGDoc.getElementById('grid_txt3').firstChild.data = formatSpeed(rmax/4,unit);
var path_in = "M 0 " + (<?=$height?> - (plot_in[0] * scale));
var path_out = "M 0 " + (<?=$height?> - (plot_out[0] * scale));
for (i = 1; i < plot_in.length; i++)
{
var x = step * i;
var y_in = <?=$height?> - (plot_in[i] * scale);
var y_out = <?=$height?> - (plot_out[i] * scale);
path_in += " L" + x + " " + y_in;
path_out += " L" + x + " " + y_out;
}
SVGDoc.getElementById('error').setAttributeNS(null, 'visibility', 'hidden');
SVGDoc.getElementById('graph_in').setAttributeNS(null, 'd', path_in);
SVGDoc.getElementById('graph_out').setAttributeNS(null, 'd', path_out);
setTimeout('fetch_data()',<?=1000*$time_interval?>);
}
function handle_error() {
SVGDoc.getElementById("error").setAttributeNS(null, 'visibility', 'visible');
setTimeout('fetch_data()',<?=1000*$time_interval?>);
}
function isNumber(a) {
return typeof a == 'number' && isFinite(a);
}
function formatSpeed(speed, unit) {
if (unit == 'bits')
return formatSpeedBits(speed);
if (unit == 'bytes')
return formatSpeedBytes(speed);
}
function formatSpeedBits(speed) {
// format speed in bits/sec, input: bytes/sec
if (speed < 125000)
return Math.round(speed / 125) + " Kbps";
if (speed < 125000000)
return Math.round(speed / 1250)/100 + " Mbps";
// else
return Math.round(speed / 1250000)/100 + " Gbps"; /* wow! */
}
function formatSpeedBytes(speed) {
// format speed in bytes/sec, input: bytes/sec
if (speed < 1048576)
return Math.round(speed / 10.24)/100 + " KB/s";
if (speed < 1073741824)
return Math.round(speed / 10485.76)/100 + " MB/s";
// else
return Math.round(speed / 10737418.24)/100 + " GB/s"; /* wow! */
}
]]>
</script>
</svg>
