mirror of
https://github.com/nidebr/as-stats-gui.git
synced 2025-02-20 11:23:18 +08:00
147 lines
3.5 KiB
PHP
147 lines
3.5 KiB
PHP
<?php
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/*
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* $Id$
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*
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* written by Manuel Kasper <mk@neon1.net> for Monzoon Networks AG
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*/
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require_once('func.inc');
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$numtop = 10;
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$ascolors = array("A6CEE3", "1F78B4", "B2DF8A", "33A02C", "FB9A99", "E31A1C", "FDBF6F", "FF7F00", "CAB2D6", "6A3D9A");
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$link = $_GET['link'];
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if (!preg_match("/^[0-9a-zA-Z][0-9a-zA-Z\-_]+$/", $link))
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die("Invalid link");
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if (@$_GET['v'] == 6)
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$link .= "_v6";
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$hours = 24;
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if (@$_GET['numhours'])
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$hours = (int)$_GET['numhours'];
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/* first step: walk the data for all ASes to determine the top 5 for the given link */
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$statsfile = statsFileForHours($hours);
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$fd = fopen($statsfile, "r");
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$cols = explode("\t", trim(fgets($fd)));
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$asstats = array();
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/* figure out which columns contain data for the links were's interested in */
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$incol = array_search("{$link}_in", $cols);
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$outcol = array_search("{$link}_out", $cols);
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if (!$incol || !$outcol)
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die("Couldn't find columns");
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/* read in all AS stats */
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while (!feof($fd)) {
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$line = trim(fgets($fd));
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if (!$line)
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continue;
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$els = explode("\t", $line);
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/* first element is the AS */
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$asstats[$els[0]] = $els[$incol] + $els[$outcol];
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}
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fclose($fd);
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/* now sort the AS stats to find the top $numtop */
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arsort($asstats, SORT_NUMERIC);
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/* extract first $numtop and consolidate the rest */
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$topas = array_slice($asstats, 0, $numtop, true);
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for ($i = 0; $i < $numtop; $i++)
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array_shift($asstats);
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$restdata = 0;
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foreach ($asstats as $as => $totaldata) {
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$restdata += $totaldata;
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}
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/* now make a beautiful graph :) */
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header("Content-Type: image/png");
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$width = $default_graph_width;
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$height = $default_graph_height;
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if (@$_GET['width'])
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$width = (int)$_GET['width'];
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if (@$_GET['height'])
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$height = (int)$_GET['height'];
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$knownlinks = getknownlinks();
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if ($compat_rrdtool12) {
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/* cannot use full-size-mode - must estimate height/width */
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$height -= 205;
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$width -= 81;
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}
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$start = time() - $hours*3600;
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$end = time();
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$cmd = "$rrdtool graph - " .
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"--slope-mode --alt-autoscale -u 0 -l 0 --imgformat=PNG --base=1000 --height=$height --width=$width " .
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"--color BACK#ffffff00 --color SHADEA#ffffff00 --color SHADEB#ffffff00 " .
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"--start " . $start . " --end " . $end . " ";
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if (!$compat_rrdtool12)
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$cmd .= "--full-size-mode ";
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if($showtitledetail && @$_GET['dname'] != "")
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$cmd .= "--title " . escapeshellarg($_GET['dname']) . " ";
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else
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if (isset($_GET['v']) && is_numeric($_GET['v']))
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$cmd .= "--title IPv" . $_GET['v'] . " ";
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/* geneate RRD DEFs */
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foreach ($topas as $as => $traffic) {
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$rrdfile = getRRDFileForAS($as);
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$cmd .= "DEF:as{$as}_in=\"$rrdfile\":{$link}_in:AVERAGE ";
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$cmd .= "DEF:as{$as}_out=\"$rrdfile\":{$link}_out:AVERAGE ";
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}
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/* generate a CDEF for each DEF to multiply by 8 (bytes to bits), and reverse for outbound */
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foreach ($topas as $as => $traffic) {
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if ($outispositive) {
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$cmd .= "CDEF:as{$as}_in_bits=as{$as}_in,-8,* ";
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$cmd .= "CDEF:as{$as}_out_bits=as{$as}_out,8,* ";
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} else {
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$cmd .= "CDEF:as{$as}_in_bits=as{$as}_in,8,* ";
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$cmd .= "CDEF:as{$as}_out_bits=as{$as}_out,-8,* ";
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}
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}
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/* generate graph area/stack for inbound */
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$i = 0;
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foreach ($topas as $as => $traffic) {
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$asinfo = getASInfo($as);
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$descr = str_replace(":", "\\:", utf8_decode($asinfo['descr']));
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$cmd .= "AREA:as{$as}_in_bits#{$ascolors[$i]}:\"AS{$as} ({$descr})\\n\"";
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if ($i > 0)
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$cmd .= ":STACK";
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$cmd .= " ";
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$i++;
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}
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/* generate graph area/stack for outbound */
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$i = 0;
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foreach ($topas as $as => $traffic) {
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$cmd .= "AREA:as{$as}_out_bits#{$ascolors[$i]}:";
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if ($i > 0)
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$cmd .= ":STACK";
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$cmd .= " ";
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$i++;
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}
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# zero line
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$cmd .= "HRULE:0#00000080";
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passthru($cmd);
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exit;
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?>
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