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207 lines
7.8 KiB
PHP
207 lines
7.8 KiB
PHP
<?php
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/*
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$Id$
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part of m0n0wall (http://m0n0.ch/wall)
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Copyright (C) 2004-2005 T. Lechat <dev@lechat.org>, Manuel Kasper <mk@neon1.net>
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and Jonathan Watt <jwatt@jwatt.org>.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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pfSense_MODULE: graph
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*/
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##|+PRIV
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##|*IDENT=page-diagnostics-cpuutilization
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##|*NAME=Diagnostics: CPU Utilization page
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##|*DESCR=Allow access to the 'Diagnostics: CPU Utilization' page.
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##|*MATCH=graph_cpu.php*
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##|-PRIV
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require_once("guiconfig.inc");
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header("Last-Modified: " . gmdate( "D, j M Y H:i:s" ) . " GMT" );
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header("Expires: " . gmdate( "D, j M Y H:i:s", time() ) . " GMT" );
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header("Cache-Control: no-store, no-cache, must-revalidate" ); // HTTP/1.1
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header("Cache-Control: post-check=0, pre-check=0", FALSE );
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header("Pragma: no-cache"); // HTTP/1.0
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header("Content-type: image/svg+xml");
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/********* Other conf *******/
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$nb_plot = 120; // maximum number of data points to plot in the graph
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$fetch_link = "stats.php?stats=cpu";
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//SVG attributes
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$attribs['axis']='fill="black" stroke="black"';
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$attribs['cpu']='fill="#FF0000" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="7"';
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$attribs['graph_cpu']='fill="none" stroke="#FF0000" stroke-opacity="0.8"';
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$attribs['legend']='fill="black" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4"';
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$attribs['grid_txt']='fill="gray" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="6"';
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$attribs['grid']='stroke="gray" stroke-opacity="0.5"';
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$attribs['error']='fill="blue" font-family="Arial" font-size="4"';
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$attribs['collect_initial']='fill="gray" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4"';
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$height=100; // SVG internal height : do not modify
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$width=200; // SVG internal width : do not modify
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/********* Graph DATA **************/
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print('<?xml version="1.0" ?>' . "\n");?>
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<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);">
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<g id="graph">
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<rect id="bg" x1="0" y1="0" width="100%" height="100%" fill="white"/>
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<line id="axis_x" x1="0" y1="0" x2="0" y2="100%" <?=$attribs['axis']?>/>
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<line id="axis_y" x1="0" y1="100%" x2="100%" y2="100%" <?=$attribs['axis']?>/>
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<polygon id="axis_arrow_x" <?=$attribs['axis']?> points="<?=($width) . "," . ($height)?> <?=($width-2) . "," . ($height-2)?> <?=($width-2) . "," . $height?>"/>
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<path id="graph_cpu" d="" <?=$attribs['graph_cpu']?>/>
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<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']?>/>
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<text id="grid_txt1" x="100%" y="25%" <?=$attribs['grid_txt']?> text-anchor="end">75%</text>
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<text id="grid_txt2" x="100%" y="50%" <?=$attribs['grid_txt']?> text-anchor="end">50%</text>
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<text id="grid_txt3" x="100%" y="75%" <?=$attribs['grid_txt']?> text-anchor="end">25%</text>
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<text id="graph_cpu_txt" x="4" y="8" <?=$attribs['cpu']?>> </text>
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<text id="error" x="50%" y="50%" visibility="hidden" <?=$attribs['error']?> text-anchor="middle"><?=gettext("Cannot get CPU load"); ?></text>
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<text id="collect_initial" x="50%" y="50%" visibility="hidden" <?=$attribs['collect_initial']?> text-anchor="middle"><?=gettext("Collecting initial data, please wait"); ?>...</text>
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</g>
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<script type="text/ecmascript">
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<![CDATA[
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/**
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* getURL is a proprietary Adobe function, but it's simplicity has made it very
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* popular. If getURL is undefined we spin our own by wrapping XMLHttpRequest.
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*/
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if (typeof getURL == 'undefined') {
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getURL = function(url, callback) {
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if (!url)
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throw '<?=gettext("No URL for getURL"); ?>';
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try {
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if (typeof callback.operationComplete == 'function')
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callback = callback.operationComplete;
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} catch (e) {}
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if (typeof callback != 'function')
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throw '<?=gettext("No callback function for getURL"); ?>';
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var http_request = null;
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if (typeof XMLHttpRequest != 'undefined') {
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http_request = new XMLHttpRequest();
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}
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else if (typeof ActiveXObject != 'undefined') {
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try {
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http_request = new ActiveXObject('Msxml2.XMLHTTP');
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} catch (e) {
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try {
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http_request = new ActiveXObject('Microsoft.XMLHTTP');
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} catch (e) {}
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}
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}
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if (!http_request)
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throw '<?=gettext("Both getURL and XMLHttpRequest are undefined"); ?>';
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http_request.onreadystatechange = function() {
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if (http_request.readyState == 4) {
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callback( { success : true,
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content : http_request.responseText,
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contentType : http_request.getResponseHeader("Content-Type") } );
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}
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}
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http_request.open('GET', url, true);
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http_request.send(null);
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}
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}
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var SVGDoc = null;
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var last_cpu_total = 0;
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var last_cpu_idle = 0;
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var diff_cpu_total = 0;
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var diff_cpu_idle = 0;
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var cpu_data = new Array();
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var max_num_points = <?=$nb_plot?>; // maximum number of plot data points
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var step = <?=$width?> / max_num_points; // plot X division size
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var scale = <?=$height?> / 100;
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function init(evt) {
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SVGDoc = evt.target.ownerDocument;
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fetch_data();
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}
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function fetch_data() {
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getURL('<?=$fetch_link?>', plot_cpu_data);
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}
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function plot_cpu_data(obj) {
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if (!obj.success)
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return handle_error(); // getURL failed to get current CPU load data
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var cpu = parseInt(obj.content);
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if (!isNumber(cpu))
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return handle_error();
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switch (cpu_data.length) {
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case 0:
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SVGDoc.getElementById("collect_initial").setAttributeNS(null, 'visibility', 'visible');
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cpu_data[0] = cpu;
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fetch_data();
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return;
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case 1:
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SVGDoc.getElementById("collect_initial").setAttributeNS(null, 'visibility', 'hidden');
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break;
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case max_num_points:
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// shift plot to left if the maximum number of plot points has been reached
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var i = 0;
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while (i < max_num_points) {
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cpu_data[i] = cpu_data[++i];
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}
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--cpu_data.length;
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}
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cpu_data[cpu_data.length] = cpu;
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var path_data = "M 0 " + (<?=$height?> - (cpu_data[0] * scale));
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for (var i = 1; i < cpu_data.length; ++i) {
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var x = step * i;
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var y_cpu = <?=$height?> - (cpu_data[i] * scale);
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path_data += " L" + x + " " + y_cpu;
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}
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SVGDoc.getElementById("error").setAttributeNS(null, 'visibility', 'hidden');
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SVGDoc.getElementById('graph_cpu_txt').firstChild.data = cpu + '%';
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SVGDoc.getElementById('graph_cpu').setAttributeNS(null, "d", path_data);
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fetch_data();
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}
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function handle_error() {
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SVGDoc.getElementById("error").setAttributeNS(null, 'visibility', 'visible');
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fetch_data();
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}
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function isNumber(a) {
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return typeof a == 'number' && isFinite(a);
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}
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]]>
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</script>
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</svg>
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