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Diffstat (limited to 'src/usr/local/www/graph_cpu.php')
| -rw-r--r-- | src/usr/local/www/graph_cpu.php | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/src/usr/local/www/graph_cpu.php b/src/usr/local/www/graph_cpu.php new file mode 100644 index 0000000..80d97f1 --- /dev/null +++ b/src/usr/local/www/graph_cpu.php @@ -0,0 +1,211 @@ +<?php +/* + $Id$ + part of m0n0wall (http://m0n0.ch/wall) + + Copyright (C) 2013-2015 Electric Sheep Fencing, LP + Copyright (C) 2004-2005 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. +*/ +/* + pfSense_MODULE: graph +*/ + +##|+PRIV +##|*IDENT=page-diagnostics-cpuutilization +##|*NAME=Diagnostics: CPU Utilization page +##|*DESCR=Allow access to the 'Diagnostics: CPU Utilization' page. +##|*MATCH=graph_cpu.php* +##|-PRIV + +require_once("guiconfig.inc"); + +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-cache, no-store, must-revalidate"); // HTTP/1.1 +header("Pragma: no-cache"); // HTTP/1.0 +header("Content-type: image/svg+xml"); + +/********* Other conf *******/ + +$nb_plot = 120; // maximum number of data points to plot in the graph +$fetch_link = "stats.php?stats=cpu"; + +//SVG attributes +$attribs['axis']='fill="black" stroke="black"'; +$attribs['cpu']='fill="#FF0000" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="7"'; +$attribs['graph_cpu']='fill="none" stroke="#FF0000" stroke-opacity="0.8"'; +$attribs['legend']='fill="black" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4"'; +$attribs['grid_txt']='fill="gray" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="6"'; +$attribs['grid']='stroke="gray" stroke-opacity="0.5"'; +$attribs['error']='fill="blue" font-family="Arial" font-size="4"'; +$attribs['collect_initial']='fill="gray" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4"'; + +$height=100; // SVG internal height : do not modify +$width=200; // SVG internal width : do not modify + +/********* Graph DATA **************/ +print('<?xml version="1.0" encoding="UTF-8"?>' . "\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%" fill="white"/> + <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']?>/> + <polygon id="axis_arrow_x" <?=$attribs['axis']?> points="<?=($width) . "," . ($height)?> <?=($width-2) . "," . ($height-2)?> <?=($width-2) . "," . $height?>"/> + <path id="graph_cpu" d="" <?=$attribs['graph_cpu']?>/> + <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="100%" y="25%" <?=$attribs['grid_txt']?> text-anchor="end">75%</text> + <text id="grid_txt2" x="100%" y="50%" <?=$attribs['grid_txt']?> text-anchor="end">50%</text> + <text id="grid_txt3" x="100%" y="75%" <?=$attribs['grid_txt']?> text-anchor="end">25%</text> + <text id="graph_cpu_txt" x="4" y="8" <?=$attribs['cpu']?>> </text> + <text id="error" x="50%" y="50%" visibility="hidden" <?=$attribs['error']?> text-anchor="middle"><?=gettext("Cannot get CPU load"); ?></text> + <text id="collect_initial" x="50%" y="50%" visibility="hidden" <?=$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 '<?=gettext("No URL for getURL"); ?>'; + } + + try { + if (typeof callback.operationComplete == 'function') { + callback = callback.operationComplete; + } + } catch (e) {} + if (typeof callback != 'function') { + throw '<?=gettext("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 '<?=gettext("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_cpu_total = 0; +var last_cpu_idle = 0; +var diff_cpu_total = 0; +var diff_cpu_idle = 0; +var cpu_data = new Array(); + +var max_num_points = <?=$nb_plot?>; // maximum number of plot data points +var step = <?=$width?> / max_num_points; // plot X division size +var scale = <?=$height?> / 100; + +function init(evt) { + SVGDoc = evt.target.ownerDocument; + fetch_data(); +} + +function fetch_data() { + getURL('<?=$fetch_link?>', plot_cpu_data); +} + +function plot_cpu_data(obj) { + if (!obj.success) { + return handle_error(); // getURL failed to get current CPU load data + } + + var cpu = parseInt(obj.content); + if (!isNumber(cpu)) { + return handle_error(); + } + + switch (cpu_data.length) { + case 0: + SVGDoc.getElementById("collect_initial").setAttributeNS(null, 'visibility', 'visible'); + cpu_data[0] = cpu; + fetch_data(); + 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) { + cpu_data[i] = cpu_data[++i]; + } + --cpu_data.length; + } + + cpu_data[cpu_data.length] = cpu; + + var path_data = "M 0 " + (<?=$height?> - (cpu_data[0] * scale)); + for (var i = 1; i < cpu_data.length; ++i) { + var x = step * i; + var y_cpu = <?=$height?> - (cpu_data[i] * scale); + path_data += " L" + x + " " + y_cpu; + } + + SVGDoc.getElementById("error").setAttributeNS(null, 'visibility', 'hidden'); + SVGDoc.getElementById('graph_cpu_txt').firstChild.data = cpu + '%'; + SVGDoc.getElementById('graph_cpu').setAttributeNS(null, "d", path_data); + + fetch_data(); +} + +function handle_error() { + SVGDoc.getElementById("error").setAttributeNS(null, 'visibility', 'visible'); + fetch_data(); +} + +function isNumber(a) { + return typeof a == 'number' && isFinite(a); +} + + ]]> + </script> +</svg> |
