363 lines
14 KiB
PHP
363 lines
14 KiB
PHP
<?php
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/**
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* LibreNMS
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*
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* This file is included with LibreNMS. It was originally part of m0n0wall <http://www.m0n0.ch/wall/>
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*
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* @package librenms
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* @subpackage graphing
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* @author T. Lechat <dev@lechat.org>, Manuel Kasper <mk@neon1.net>, Jonathan Watt <jwatt@jwatt.org>
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* @copyright 2004-2006 T. Lechat <dev@lechat.org>, Manuel Kasper <mk@neon1.net>, Jonathan Watt <jwatt@jwatt.org>
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* @license BSD
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*
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*/
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$init_modules = array('web', 'auth');
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require realpath(__DIR__ . '/..') . '/includes/init.php';
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if (is_numeric($_GET['id']) && ($config['allow_unauth_graphs'] || port_permitted($_GET['id']))) {
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$port = cleanPort(get_port_by_id($_GET['id']));
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$device = device_by_id_cache($port['device_id']);
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$title = generate_device_link($device);
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$title .= " :: Port ".generate_port_link($port);
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$auth = true;
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} else {
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echo("Unauthenticad");
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die;
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}
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header("Content-type: image/svg+xml");
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/********** HTTP GET Based Conf ***********/
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$ifnum=@$port['ifIndex']; // BSD / SNMP interface name / number
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$ifname=$port['label']; //Interface name that will be showed on top right of graph
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$hostname=shorthost($device['hostname']);
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if ($_GET['title']) {
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$ifname = display($_GET['title']);
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}
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/********* Other conf *******/
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$scale_type="follow"; //Autoscale default setup : "up" = only increase scale; "follow" = increase and decrease scale according to current graphed datas
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$nb_plot=240; //NB plot in graph
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if (is_numeric($_GET['interval'])) {
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$time_interval=$_GET['interval'];
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} else {
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$time_interval=1; //Refresh time Interval
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}
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$fetch_link = "data.php?id=".$_GET['id'];
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//SVG attributes
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$attribs['axis']='fill="black" stroke="black"';
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$attribs['in']='fill="green" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="7"';
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$attribs['out']='fill="blue" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="7"';
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$attribs['graph_in']='fill="none" stroke="green" stroke-opacity="0.8"';
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$attribs['graph_out']='fill="none" stroke="blue" stroke-opacity="0.8"';
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$attribs['legend']='fill="black" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4"';
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$attribs['graphname']='fill="#435370" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="9"';
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$attribs['hostname']='fill="#435370" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="6"';
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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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$attribs['switch_unit']='fill="#435370" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4" text-decoration="underline"';
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$attribs['switch_scale']='fill="#435370" font-family="Tahoma, Verdana, Arial, Helvetica, sans-serif" font-size="4" text-decoration="underline"';
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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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//Error text if we cannot fetch data : depends on which method is used
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$error_text = "Cannot get data about interface $ifnum";
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$height=125; //SVG internal height : do not modify
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$width=300; //SVG internal width : do not modify
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/********* Graph DATA **************/
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print('<?xml version="1.0" encoding="iso-8859-1"?>' . "\n");?>
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<svg width="100%" height="100%" viewBox="0 0 <?php echo("$width $height") ?>" preserveAspectRatio="none" xml:space="preserve" xmlns="http://www.w3.org/2000/svg"
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onload="init(evt)">
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<g id="graph">
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<rect id="bg" x1="0" y1="0" width="100%" height="100%" fill="white"/>
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<line id="axis_x" x1="0" y1="0" x2="0" y2="100%" <?php echo ($attribs['axis']) ?>/>
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<line id="axis_y" x1="0" y1="100%" x2="100%" y2="100%" <?php echo($attribs['axis']) ?>/>
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<path id="graph_out" d="M0 <?php echo($height) ?> L 0 <?php echo($height . '" ' . $attribs['graph_out']) ?>/>
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<path id="graph_in" d="M0 <?php echo($height) ?> L 0 <?php echo($height . '" ' . $attribs['graph_in']) ?>/>
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<path id="grid" d="M0 <?php echo($height/4*1) ?> L <?php echo($width) ?> <?php echo($height/4*1) ?> M0 <?php echo($height/4*2) ?> L <?php echo($width) ?> <?php echo($height/4*2) ?> M0 <?php echo ($height/4*3) ?> L <?php echo($width . ' ' . ($height/4*3)) ?>" <?php echo($attribs['grid'])?>/>
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<text id="grid_txt1" x="<?php echo($width) ?>" y="<?php echo($height/4*1) ?>" <?php echo($attribs['grid_txt']) ?> text-anchor="end"> </text>
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<text id="grid_txt2" x="<?php echo($width) ?>" y="<?php echo($height/4*2) ?>" <?php echo($attribs['grid_txt']) ?> text-anchor="end"> </text>
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<text id="grid_txt3" x="<?php echo($width) ?>" y="<?php echo($height/4*3) ?>" <?php echo($attribs['grid_txt']) ?> text-anchor="end"> </text>
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<text id="graph_in_lbl" x="5" y="8" <?php echo($attribs['in']) ?>>In</text>
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<text id="graph_out_lbl" x="5" y="16" <?php echo($attribs['out']) ?>>Out</text>
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<text id="graph_in_txt" x="20" y="8" <?php echo($attribs['in']) ?>> </text>
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<text id="graph_out_txt" x="20" y="16" <?php echo($attribs['out']) ?>> </text>
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<text id="ifname" x="<?php echo($width-2) ?>" y="8" <?php echo($attribs['graphname']) ?> text-anchor="end"><?php echo($ifname) ?></text>
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<text id="hostname" x="<?php echo($width-2) ?>" y="14" <?php echo($attribs['hostname']) ?> text-anchor="end"><?php echo($hostname) ?></text>
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<text id="switch_unit" x="<?php echo($width*0.48) ?>" y="5" <?php echo($attribs['switch_unit']) ?>>Switch to bytes/s</text>
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<text id="switch_scale" x="<?php echo($width*0.48) ?>" y="11" <?php echo($attribs['switch_scale']) ?>>AutoScale (<?php echo($scale_type) ?>)</text>
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<text id="datetime" x="<?php echo($width*0.33) ?>" y="5" <?php echo($attribs['legend']) ?>> </text>
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<text id="graphlast" x="<?php echo($width*0.48) ?>" y="17" <?php echo($attribs['legend']) ?>>Graph shows last <?php echo($time_interval*$nb_plot) ?> seconds</text>
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<polygon id="axis_arrow_x" <?php echo($attribs['axis']) ?> points="<?php echo($width . "," . $height) ?> <?php echo(($width-2) . "," . ($height-2)) ?> <?php echo(($width-2) . "," . $height) ?>"/>
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<text id="error" x="<?php echo($width*0.5) ?>" y="<?php echo($height*0.5) ?>" visibility="hidden" <?php echo($attribs['error']) ?> text-anchor="middle"><?php echo($error_text) ?></text>
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<text id="collect_initial" x="<?php echo($width*0.5) ?>" y="<?php echo($height*0.5) ?>" visibility="hidden" <?php echo($attribs['collect_initial']) ?> text-anchor="middle">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 '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 '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 '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_ifin = 0;
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var last_ifout = 0;
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var last_ugmt = 0;
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var max = 0;
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var plot_in = new Array();
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var plot_out = new Array();
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var max_num_points = <?php echo($nb_plot) ?>; // maximum number of plot data points
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var step = <?php echo($width) ?> / max_num_points ;
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var unit = 'bits';
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var scale_type = '<?php echo($scale_type) ?>';
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function init(evt) {
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SVGDoc = evt.target.ownerDocument;
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SVGDoc.getElementById("switch_unit").addEventListener("mousedown", switch_unit, false);
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SVGDoc.getElementById("switch_scale").addEventListener("mousedown", switch_scale, false);
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fetch_data();
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}
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function switch_unit(event)
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{
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SVGDoc.getElementById('switch_unit').firstChild.data = 'Switch to ' + unit + '/s';
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unit = (unit == 'bits') ? 'bytes' : 'bits';
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}
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function switch_scale(event)
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{
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scale_type = (scale_type == 'up') ? 'follow' : 'up';
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SVGDoc.getElementById('switch_scale').firstChild.data = 'AutoScale (' + scale_type + ')';
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}
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function fetch_data() {
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getURL('<?php echo($fetch_link) ?>', plot_data);
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}
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function plot_data(obj) {
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// Show datetimelegend
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var now = new Date();
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var datetime = (now.getMonth()+1) + "/" + now.getDate() + "/" + now.getFullYear() + ' ' +
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LZ(now.getHours()) + ":" + LZ(now.getMinutes()) + ":" + LZ(now.getSeconds());
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SVGDoc.getElementById('datetime').firstChild.data = datetime;
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if (!obj.success)
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return handle_error(); // getURL failed to get data
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var t = obj.content.split("|");
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var ugmt = parseFloat(t[0]); // ugmt is an unixtimestamp style
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var ifin = parseInt(t[1]); // number of bytes received by the interface
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var ifout = parseInt(t[2]); // number of bytes sent by the interface
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var scale;
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if (!isNumber(ifin) || !isNumber(ifout))
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return handle_error();
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var diff_ugmt = ugmt - last_ugmt;
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var diff_ifin = ifin - last_ifin;
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var diff_ifout = ifout - last_ifout;
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if (diff_ugmt == 0)
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diff_ugmt = 1; /* avoid division by zero */
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last_ugmt = ugmt;
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last_ifin = ifin;
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last_ifout = ifout;
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switch (plot_in.length) {
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case 0:
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SVGDoc.getElementById("collect_initial").setAttributeNS(null, 'visibility', 'visible');
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plot_in[0] = diff_ifin / diff_ugmt;
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plot_out[0] = diff_ifout / diff_ugmt;
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setTimeout('fetch_data()',<?php echo(1000*$time_interval) ?>);
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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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plot_in[i] = plot_in[i+1];
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plot_out[i] = plot_out[++i];
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}
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plot_in.length--;
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plot_out.length--;
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}
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plot_in[plot_in.length] = diff_ifin / diff_ugmt;
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plot_out[plot_out.length]= diff_ifout / diff_ugmt;
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var index_plot = plot_in.length - 1;
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SVGDoc.getElementById('graph_in_txt').firstChild.data = formatSpeed(plot_in[index_plot], unit);
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SVGDoc.getElementById('graph_out_txt').firstChild.data = formatSpeed(plot_out[index_plot], unit);
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/* determine peak for sensible scaling */
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if (scale_type == 'up') {
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if (plot_in[index_plot] > max)
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max = plot_in[index_plot];
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if (plot_out[index_plot] > max)
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max = plot_out[index_plot];
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}
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else if (scale_type == 'follow') {
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i = 0;
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max = 0;
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while (i < plot_in.length) {
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if (plot_in[i] > max)
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max = plot_in[i];
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if (plot_out[i] > max)
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max = plot_out[i];
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i++;
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}
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}
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var rmax; // max, rounded up
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if (unit == 'bits') {
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/* round up max, such that
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100 kbps -> 200 kbps -> 400 kbps -> 800 kbps -> 1 Mbps -> 2 Mbps -> ... */
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rmax = 12500;
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i = 0;
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while (max > rmax) {
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i++;
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if (i && (i % 4 == 0))
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rmax *= 1.25;
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else
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rmax *= 2;
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}
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} else {
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/* round up max, such that
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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 ... */
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rmax = 10240;
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i = 0;
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while (max > rmax) {
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i++;
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if (i && (i % 4 == 0))
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rmax *= 1.25;
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else
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rmax *= 2;
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if (i == 8)
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rmax *= 1.024;
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}
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}
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scale = <?php echo($height) ?> / rmax;
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/* change labels accordingly */
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SVGDoc.getElementById('grid_txt1').firstChild.data = formatSpeed(3*rmax/4,unit);
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SVGDoc.getElementById('grid_txt2').firstChild.data = formatSpeed(2*rmax/4,unit);
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SVGDoc.getElementById('grid_txt3').firstChild.data = formatSpeed(rmax/4,unit);
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var path_in = "M 0 " + (<?php echo($height) ?> - (plot_in[0] * scale));
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var path_out = "M 0 " + (<?php echo($height) ?> - (plot_out[0] * scale));
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for (i = 1; i < plot_in.length; i++)
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{
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var x = step * i;
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var y_in = <?php echo($height) ?> - (plot_in[i] * scale);
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var y_out = <?php echo($height) ?> - (plot_out[i] * scale);
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path_in += " L" + x + " " + y_in;
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path_out += " L" + x + " " + y_out;
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}
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SVGDoc.getElementById('error').setAttributeNS(null, 'visibility', 'hidden');
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SVGDoc.getElementById('graph_in').setAttributeNS(null, 'd', path_in);
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SVGDoc.getElementById('graph_out').setAttributeNS(null, 'd', path_out);
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setTimeout('fetch_data()',<?php echo(1000*$time_interval) ?>);
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}
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function handle_error() {
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SVGDoc.getElementById("error").setAttributeNS(null, 'visibility', 'visible');
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setTimeout('fetch_data()',<?php echo(1000*$time_interval) ?>);
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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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function formatSpeed(speed, unit) {
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if (unit == 'bits')
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return formatSpeedBits(speed);
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if (unit == 'bytes')
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return formatSpeedBytes(speed);
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}
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function formatSpeedBits(speed) {
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// format speed in bits/sec, input: bytes/sec
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if (speed < 125000)
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return Math.round(speed / 125) + " Kbps";
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if (speed < 125000000)
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return Math.round(speed / 1250)/100 + " Mbps";
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// else
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return Math.round(speed / 1250000)/100 + " Gbps"; /* wow! */
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}
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function formatSpeedBytes(speed) {
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// format speed in bytes/sec, input: bytes/sec
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if (speed < 1048576)
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return Math.round(speed / 10.24)/100 + " KB/s";
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if (speed < 1073741824)
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return Math.round(speed / 10485.76)/100 + " MB/s";
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// else
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return Math.round(speed / 10737418.24)/100 + " GB/s"; /* wow! */
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}
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function LZ(x) {
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return (x < 0 || x > 9 ? "" : "0") + x;
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}
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]]>
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</script>
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</svg>
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