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amavis.stats.php
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amavis.stats.php
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<?php
/**
amavis-stats.php - build rrd graphs from amavisd-new collected data.
Copyright (C) 2004, 2005, 2006 Dale Walsh ([email protected])
Copyright (C) 2003, 2004 Mark Lawrence ([email protected])
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License with
the Debian GNU/Linux distribution in file /usr/share/common-licenses/GPL;
if not, write to the Free Software Foundation, Inc., 59 Temple Place,
Suite 330, Boston, MA 02111-1307 USA
On Debian systems, the complete text of the GNU General Public
License, version 2, can be found in /usr/share/common-licenses/GPL-2.
*/
function dummy(){
// This is just a place-holder
}
/* some basic compatibility for PHP 4.x.x and to reassign HTTP variables (incase register_globals is off) */
if (!isset($_GET)) { $_GET = &$HTTP_GET_VARS; }
if (!isset($_POST)) { $_POST = &$HTTP_POST_VARS; }
if (!isset($_SESSION)) { $_SESSION = &$HTTP_SESSION_VARS; }
if (!isset($_SERVER)) { $_SERVER = &$HTTP_SERVER_VARS; }
if (!isset($_COOKIE)) { $_COOKIE = &$HTTP_COOKIE_VARS; }
if (!isset($_FILES)) { $_FILES = &$HTTP_POST_FILES; }
/* Get and set the defaults for various options */
define('IN_AS', true);
$as_pkg = "amavis-stats";
$as_root_path = "/usr/local/share/amavis-stats";
$as_version = "0.1.22";
$button = NULL;
$button_name = NULL;
$button_selected = NULL;
$button_unselected = NULL;
$dbg_msg = NULL;
$font_color_selected = NULL;
$font_color_unselected = NULL;
$debug = false;
$host = "";
$imgdir = "img";
$legend = false;
$libdir = "/usr/local/var/lib/$as_pkg";
$me = $_SERVER["SCRIPT_NAME"];
$namefile = $libdir . "/$as_pkg.names";
$now = time();
$out_msg = NULL;
$rate = 3600;
$refresh = NULL;
$show_graph_period = false;
$span = "yearly";
$t_path = "/templates/";
$template = NULL;
$text = NULL;
$title = NULL;
$ttfont = NULL;
$ttsize = NULL;
require('ressources/amavis-stat/template.php');
include('ressources/amavis-stat/amavis-stats.php.conf');
if (!empty($_GET)) while (list($name, $value) = each($_GET)) $$name = $value;
if (!empty($_POST)) while (list($name, $value) = each($_POST)) $$name = $value;
$debug = (($debug == "true" || $debug == 1) ? "true":"false");
$legend = (($legend == "true" || $legend == 1) ? "true":"false");
$show_graph_period = (($show_graph_period == "true" || $show_graph_period == 1) ? true:false);
if (!$refresh && $refresh !='0') $refresh = 300;
$template_path = $template ? $t_path . $template : $t_path . 'standard';
$button_selected = $button_selected ? $button_selected : 'blue';
$button_unselected = $button_unselected ? $button_unselected : 'white';
if (!$ttfont) $ttfont = $ttfont ? $ttfont : $as_root_path."/ChalkboardBold.ttf"; # default font type
if(!isset($ttsize)) $ttsize = 9; # default font size
// The rrdstep value MUST match that which is used by the perl script.
$rrdstep = 300;
$rrd = "shared-library";
if (function_exists('rrd_graph') && !@dl('rrdtool.so')) {
$rrd = "PHP embedded";
}
if (!function_exists('rrd_graph') && !@dl('rrdtool.so')) {
$rrd = "command-line";
if (file_exists("/usr/local/rrdtool/bin/rrdtool")) {
$rrdtool = "/usr/local/rrdtool/bin/rrdtool";
} elseif (file_exists("/usr/local/bin/rrdtool")) {
$rrdtool = "/usr/local/bin/rrdtool";
} elseif (file_exists("/usr/bin/rrdtool")) {
$rrdtool = "/usr/bin/rrdtool";
}
function rrd_graph ($img = '', $opts = '', $count = '') {
global $rrd_error_val, $rrdtool;
unset($output);
$cmd = "$rrdtool graph $img '". implode("' \\\n'",$opts) . "'" . " 2>&1";
echo $cmd;
$out = exec($cmd, $output, $rrd_error_val);
if ($rrd_error_val) {
if (!is_numeric($rrd_error_val)) {
$rrd_error_val = $output[0];
}
return false;
}
$retval = array();
if (preg_match("/(\d+)x(\d+)/", $output[0], $matches)) {
$retval["xsize"] = $matches[1];
$retval["ysize"] = $matches[2];
} else {
$rrd_error_val = $output[0];
return false;
}
array_shift($output);
$retval["calcpr"] = array();
foreach ($output as $index => $value) {
$retval["calcpr"][$index] = $value;
}
return $retval;
}
function rrd_error() {
global $rrd_error_val;
return $rrd_error_val;
}
}
function pre_graph($img, $opts, $count) {
$tmp = "rrd_graph"; $$img = $opts;
$$tmp = array("$img" => $opts);
aslog($$tmp,0,'rrd_graph');
$pre_ret = rrd_graph($img, $opts, $count);
aslog($pre_ret, 0, 'ret');
return $pre_ret;
}
/**
* make_button($text, $button)
*
* $test - text to display on the png
* $button - color of png to select
*
* Builds a png with the supplied text.
*/
function make_button($text = 'example', $button = 'blue') {
global $as_root_path, $button_name, $button_selected, $button_unselected,$x,$y,
$ttsize, $ttfont, $font_color_selected, $font_color_unselected, $saturation, $huerotation;
$height = 26; # how tall is the button
$cap_width = 15; # how wide are the left and right rounded caps
$cap_overlap = 5; # how many pixels should the text intrude into each cap
$center_width = 20; # how wide is the stretchable center part
$color = $button ? $button : 'white';
$font_color = $button == $button_unselected ? ($font_color_unselected ? $font_color_unselected : array(51, 51, 51) ) : ($font_color_selected ? $font_color_selected : array(51, 51, 51) );
$left_name = $button_name ? "${button_name}_left_${color}.png" : "tab_left_${color}.png";
$center_name = $button_name ? "${button_name}_center_${color}.png" : "tab_center_${color}.png";
$right_name = $button_name ? "${button_name}_right_${color}.png" : "tab_right_${color}.png";
# Load in the three images needed to create the button
#
$img_button_left = ImageCreateFromPNG($left_name) or die("Unable to open $left_name");
$img_button_center = ImageCreateFromPNG($center_name) or die("Unable to open $center_name");
$img_button_right = ImageCreateFromPNG($right_name) or die("Unable to open $right_name");
$ttbbox = imagettfbbox($ttsize, 0, $ttfont, $text);
$ttwidth = $ttbbox[2] - $ttbbox[0];
$img_width = $ttwidth + 2 * ($cap_width - $cap_overlap);
$imout = ImageCreate($img_width, $height) or die("Unable to create new image");
# Fill the empty image canvas by tiling the center image
#
for ($i =0; $i < $img_width / $center_width; $i++) {
ImageCopy($imout, $img_button_center, $i * $center_width, 0, 0, 0, $center_width, $height);
}
# Now add the left and right cap, this finishes the button
#
ImageCopy($imout, $img_button_left, 0, 0, 0, 0, $cap_width, $height);
ImageCopy($imout, $img_button_right, $img_width - $cap_width, 0, 0, 0, $cap_width, $height);
# Define text color and render the text onto the button image
#
$text_color = ImageColorAllocate($imout, $font_color[0], $font_color[1], $font_color[2]);
ImageTTFText($imout, $ttsize, 0, $cap_width - $cap_overlap, 19, $text_color, $ttfont, $text);
# That's it, output the result
#
Header('Cache-control: no-cache, no-store');
Header("Content-type: image/png");
Header("Expires: Tue, 01 Jan 1980 00:00:00 GMT");
ImagePng($imout);
ImageDestroy($imout);
}
/* Timing function to work out how long things take*/
function elapsed($start) {
$end = microtime();
list($start2, $start1) = explode(" ", $start);
list($end2, $end1) = explode(" ", $end);
$diff1 = $end1 - $start1;
$diff2 = $end2 - $start2;
if( $diff2 < 0 ){
$diff1 -= 1;
$diff2 += 1.0;
}
return $diff2 + $diff1;
}
function aslog($txt = '', $pre = 0, $msg = '') {
global $as_pkg, $debug, $dbg_msg;
if (!$msg) $msg = $txt;
if ($debug == "true") {
if ($pre) $dbg_msg .= "</pre>\n" && $txt = explode(', ',str_replace('\\', ', ', $txt));
$dbg_msg .= "<hr width=200 align=left><strong>$as_pkg::debug:</strong> $msg<br />\n";
if (is_array($txt)) $dbg_msg .= print_array($txt);
if ($pre) $dbg_msg .= "<pre>\n";
}
}
function asErr($txt = "") {
global $as_pkg, $out_msg;
$out_msg .= "$as_pkg::error: $txt<br>\n";
}
function print_array($array,$prep = '',$no_pre = false) {
$newArray = array();
foreach( $array as $key => $value ) {
$newArray[$key] = $value;
}
// Print an array tree.
$ret = '';
$prep = "$prep|";
foreach($array as $key=>$val) {
$type = gettype($val);
if (is_array($val) && !$val) {
$line = "-+ $key (<strong>$type</strong>)\n";
$line .= " ".$prep." |\t(<em>is empty</em>)\n";
} elseif (is_array($val)) {
$line = "-+ $key (<strong>$type</strong>)\n";
$line .= print_array($val,"$prep ",true);
} else {
$val = trim($val);
$line = "-> $key = \"$val\" (<em>$type</em>)\n";
}
$ret .= " ".$prep.$line;
}
if ($no_pre) return $ret;
return "<pre>\n".$ret."</pre>\n";
}
function asLoadStats ($host) {
global $libdir, $namefile, $virus, $maxi, $msgs, $as_pkg, $vid;
$do_host = $host ? $host:'localhost';
$statefile = "$libdir/$as_pkg.state";
$seenfile = "$libdir/$as_pkg.seen";
$readfile = @file($seenfile);
if (!is_array($readfile)) {
asErr("Could not open $seenfile");
return false;
}
$virus = array();
for ($k = 0; $k <= (count($readfile) - 1); $k++) {
$fields = preg_split("/\s+/",$readfile[$k], -1, PREG_SPLIT_NO_EMPTY);
$virus[$fields[0]]["id"] = $fields[0];
$virus[$fields[0]]["firstseen"] = $fields[1];
$virus[$fields[0]]["lastseen"] = $fields[2];
}
$readfile = @file($namefile);
if (!is_array($readfile)) {
asErr("Couldn't open id => name mappings file.");
}
$msgs = array();
for ($k = 0; $k <= (count($readfile) - 1); $k++) {
$fields = preg_split("/\s+/",$readfile[$k], 2, PREG_SPLIT_NO_EMPTY);
$id = trim($fields[0]);
$name = trim($fields[1]);
if (isset($virus[$id])) { // ID has been seen
$virus[$id]["name"] = $name; // so record the name
} else {
continue; // otherwise we don't need to know about this guy
}
// Pull out the "standard" IDs (Passed *, Blocked *)
if (strpos($name, "Passed") === 0 ||
strpos($name, "Blocked") === 0) {
$msgs[$id] = $name;
unset($virus[$id]);
continue;
}
$vid[$name] = $id;
}
if (count($virus) >= 1)
aslog($virus, 0, "asLoadStats('".$do_host."')->\$virus");
if (count($vid) >= 1)
aslog($vid, 0, "asLoadStats('".$do_host."')->\$vid");
if (count($msgs) >= 1)
aslog($msgs, 0, "asLoadStats('".$do_host."')->\$msg");
if (count($virus) == 0 and count($msgs) == 0) {
asErr("No viruses/IDs seen.");
return false;
}
$readfile = @file($statefile);
if (!is_array($readfile)) {
asErr("Couldn't open state file.");
}
aslog($statefile);
aslog($readfile, 0, "asLoadStats('".$do_host."')->\$readfile");
for ($k = 0; $k <= (count($readfile) - 1); $k++) {
$fields = preg_split("/\s+/",$readfile[$k], -1, PREG_SPLIT_NO_EMPTY);
if ($fields[0] == "lastupdate:" && is_numeric($fields[1])) {
$lastupdate = $fields[1];
} elseif ($fields[0] == "LC_TIME:") {
setlocale(LC_TIME, $fields[1]);
}
}
if (!isset($lastupdate)) {
asErr("lastupdate not defined.");
return false;
}
elseif ($lastupdate == 0) {
asErr("last update was at 0 seconds.");
return false;
}
return true;
}
/*
* The beginning and the end of the calculations must not fall half
* way through any of the rrd "bins", but only on the boundaries. Which
* bin is used is determined by rrdtool based on the span.
*
* The rrds are created as follows (from the amavis-stats perl script)
* with a "step" of 300:
*
* "RRA:AVERAGE:0.5:1:300" = 1 bin every step (300 seconds)
* "RRA:AVERAGE:0.5:6:700" = 1 bin every 6 steps (1800 seconds - 1/2 hour)
* "RRA:AVERAGE:0.5:24:775" = 1 bin every 24 steps (7200 seconds - 2 hours)
* "RRA:AVERAGE:0.5:288:797" = 1 bin every 288 steps (86400 seconds - 1 day)
*
* If we make sure that for the appropriate span we start and end on the
* appropriate place the totals should work out accurately.
*
* By the same logic, we have to make sure that the rrd files are first
* populated with data at the beginning of the highest bin (ie at the start
* of a day). Otherwise we are calculating over a period which contains
* some *UNKNOWN* data.
*
* At least, that's the theory.
*
* getlimits($end, $span)
*
* $end - end time in seconds
* $span - string either "daily", "weekly", "monthly", or "yearly"
*
* Returns an array with the new end, a start value, and a better text
* description of the span.
*/
function getlimits($end, $span) {
global $rrdstep;
/* how wide is each bin, in seconds? */
$dayw = $rrdstep;
$weekw = 6*$rrdstep;
$monthw = 24*$rrdstep;
$yearw = 288*$rrdstep;
/* how long is each span in seconds? */
$daysec = 60*60*24;
$weeksec = $daysec*7;
$monthsec = $weeksec*4;
$yearsec = $weeksec*52;
/* make sure that the span is a multiple of the bin size */
/* is this actually necessary? */
$dayspan = floor($daysec/$dayw) * $dayw;
$weekspan = floor($weeksec/$weekw) * $weekw;
$monthspan = floor($monthsec/$monthw) * $monthw;
$yearspan = (int)($yearsec/$yearw) * $yearw;
$result = array();
if ($span == "daily") {
$result["end"] = floor($end/$dayw) * $dayw;
$result["start"] = $result["end"] - $dayspan;
$result["description"] = "24 hours";
} elseif ($span == "weekly") {
$result["end"] = floor($end/$weekw) * $weekw;
$result["start"] = $result["end"] - $weekspan;
$result["description"] = "1 week";
} elseif ($span == "monthly") {
$result["end"] = floor($end/$monthw) * $monthw;
$result["start"] = $result["end"] - $monthspan;
$result["description"] = "4 weeks";
} elseif ($span == "yearly") {
$result["end"] = floor($end/$yearw) * $yearw;
$result["start"] = $result["end"] - $yearspan;
$result["description"] = "52 weeks";
} else {
asErr("getlimits: bad span: $span");
}
aslog($result, 0, "getlimits(".$end.",".$span.")->\$result");
return $result;
}
function on_host($name){
return $name != "" ? "on $name " : "";
}
function calc_maxi($num) {
if ($num > 20) {
return 2;
} else {
return 3;
}
}
/*
*
*/
function addopts(&$opts, $type, $id, $vcount, $thename, $thecolor) {
global $libdir, $rate, $maxi;
// $name = sprintf("%-".$maxi."s", $thename);
$thename = preg_replace('/:/', "\:", $thename);
$name = substr(sprintf("%-".$maxi."s", strlen($thename) > 32 ? substr(sprintf("%s",$thename),0,29)."..." : $thename),0,32);
$count = $vcount[$id];
$count = sprintf("%8d", $count);
$opts[] = "DEF:v$id=$libdir/$id.rrd:hits:AVERAGE";
// $opts[] = "CDEF:gv$id=v$id,$rate,*";
$opts[] = "CDEF:gv$id=v$id,UN,0,v$id,IF,$rate,*";
$opts[] = "$type:gv$id#$thecolor:$name $count";
return $opts;
}
/**
* asPGraph($img, $end, $span)
*
* $img - name of the png to generate
* $end - end time in seconds
* $span - string either "daily", "weekly", "monthly", or "yearly"
*
* Build a graph of clean or "Passed" emails.
* Returns either a html-valid <img> tag which can be printed, or the
* boolean "false" if something went wrong.
*/
function asPGraph($img, $end, $span) {
global $libdir, $virus, $debug, $refresh, $span, $as_pkg, $host_list;
global $rate, $as_version, $rrdstep, $host, $msgs, $show_graph_period;
/*
* Work out the beginning and the end, based on the span
*/
$limits = getlimits($end, $span);
$end = $limits["end"];
$start = $limits["start"];
$length = $end - $start;
$timetext = $limits["description"];
$start_period = strftime("%A %B %d %H:%M:%S (GMT%z)", $start);
$end_period = strftime("%A %B %d %H:%M:%S (GMT%z)", $end);
$startdate = strftime("%c", $start);
$enddate = strftime("%c", $end);
$nowdate = strftime("%c", time());
$hostname = on_host($host);
if ($rate == 60) {
$ratemsg = "min";
} else {
$rate = 3600;
$ratemsg = "hour";
}
$arrcol = array("Passed SPAM" => "7a5aff",
"Blocked SPAM" => "fa5aff",
"Passed BANNED" => "cc9900",
"Blocked BANNED" => "ffdd00",
"Passed BAD-HEADER" => "3f00cc",
"Blocked BAD-HEADER" => "594e61",
"Passed INFECTED" => "9900aa",
"Blocked INFECTED" => "ff3a3d",
"Passed CLEAN" => "10d0d0",
"Blocked CLEAN" => "7ffa00");
/*
* It is a two-step process to build the final graph. The average over
* a specific time period seems to be impossible to get without actually
* building a graph. Ie, rrd fetch will not calculate the values we
* need - we would have to sum and average manually.
*
* However the PRINT function of a graph will return what we want
* in an array. So first of all build a graph that PRINTs the average
* of every virus over the selected time period.
*/
$opts = array();
$opts[] = "--start=$start";
$opts[] = "--end=$end";
foreach ($msgs as $id => $name) {
$opts[] = "DEF:v$id=$libdir/$id.rrd:hits:AVERAGE";
$opts[] = "CDEF:gv$id=v$id,UN,0,v$id,IF";
$opts[] = "CDEF:gvt$id=gv$id,$length,*";
$opts[] = "PRINT:gvt$id:AVERAGE:%.0lf";
}
$ret = pre_graph($img, $opts, count($opts));
if (!is_array($ret)) {
$msg = rrd_error();
asErr("rrd_graph()1: $msg");
return false;
}
/*
* All results from PRINT commands are in the array $ret["calcpr"][..]
*/
$i = 0;
$pcount = array();
foreach ($msgs as $id => $name) {
/*
* We don't have enough resolution in the rrds
* to calculate the correct counts at low averages,
* so we just don't display them
*/
if ($ret["calcpr"][$i] != 0) {
$pcount[$id] = $ret["calcpr"][$i];
}
$i++;
}
if (count($pcount) >= 1) {
arsort($pcount);
}
else {
aslog("pcount is an empty array");
}
aslog($pcount,0,'pcount');
$opts = array();
$opts[] = "--start=$start";
$opts[] = "--end=$end";
$opts[] = "--imgformat=PNG";
$opts[] = "--title=Message Breakdown $hostname($timetext to $enddate)";
$opts[] = "--width=580";
$opts[] = "--vertical-label=msgs/$ratemsg";
$type = "AREA";
foreach ($pcount as $id => $count) {
$name = sprintf("%-21s", $msgs[$id]);
$col = $arrcol[$msgs[$id]];
$opts[] = "DEF:v$id=$libdir/$id.rrd:hits:AVERAGE"; // rrd datasrc
$opts[] = "CDEF:gv$id=v$id,UN,0,v$id,IF"; // make UNK=0
$opts[] = "CDEF:gtvt$id=gv$id,$rate,*"; // height/rate
$opts[] = "$type:gtvt$id#$col:$name "; // name&graph
$opts[] = "CDEF:gvt$id=gv$id,$length,*"; // how many?
$opts[] = "GPRINT:gvt$id:AVERAGE:%.0lf"; // how many?
$opts[] = "COMMENT:\\n";
$type = "STACK";
}
$opts[] = "COMMENT:\\n";
if ($show_graph_period) {
$opts[] = graph_date($start_period, $end_period);
}
$opts[] = "COMMENT:$as_pkg v$as_version\\r";
$start = microtime();
$ret = pre_graph($img, $opts, count($opts));
$t = elapsed($start);
if (!is_array($ret)) {
$err = rrd_error();
asErr("rrd_graph()2: $err");
return false;
}
return "<img class=\"2\" src=\"$img\" alt=\"[image: $timetext]\">";
}
/**
* asVGraph($img, $end, $span)
*
* $img - name of the png to generate
* $end - end time in seconds
* $span - string either "daily", "weekly", "monthly", or "yearly"
*
* Build a graph of Virus infected emails.
* Returns either a html-valid <img> tag which can be printed, or the
* boolean "false" if something went wrong.
*/
function asVGraph($img, $end, $span) {
global $rate, $maxi, $libdir, $virus, $show_graph_period;
global $as_version, $rrdstep, $host, $as_pkg;
if (count($virus) > 0) {
/*
* Work out the beginning and the end, based on the span
*/
$limits = getlimits($end, $span);
$end = $limits["end"];
$start = $limits["start"];
$length = $end - $start;
$timetext = $limits["description"];
$start_period = strftime("%A %B %d %H:%M:%S (GMT%z)", $start);
$end_period = strftime("%A %B %d %H:%M:%S (GMT%z)", $end);
$startdate = strftime("%c", $start);
$enddate = strftime("%c", $end);
$nowdate = strftime("%c", time());
$hostname = on_host($host);
/*
* It is a two-step process to build the final graph. The average over
* a specific time period seems to be impossible to get without actually
* building a graph. Ie, rrd fetch will not calculate the values we
* need - we would have to sum and average manually.
*
* However the PRINT function of a graph will return what we want
* in an array. So first of all build a graph that PRINTs the average
* of every virus over the selected time period.
*/
$opts = array();
$opts[] = "--start=$start";
$opts[] = "--end=$end";
foreach ($virus as $id => $rest) {
$opts[] = "DEF:v$id=$libdir/$id.rrd:hits:AVERAGE";
$opts[] = "CDEF:gv$id=v$id,UN,0,v$id,IF";
$opts[] = "CDEF:gvt$id=gv$id,$length,*";
$opts[] = "PRINT:gvt$id:AVERAGE:%.0lf";
}
$ret = pre_graph($img, $opts, count($opts));
$infected = 0;
if (!is_array($ret)) {
$msg = rrd_error();
asErr("rrd_graph(): $msg");
return false;
}
/*
* All results from PRINT commands are in the array $ret["calcpr"][..]
*/
$maxi = 0;
$i = 0;
$vcount = array();
foreach ($virus as $id => $rest) {
/*
* We don't have enough resolution in the rrds
* to calculate the correct counts at low averages,
* so we just don't display them
*/
if ($ret["calcpr"][$i] != 0) {
$vcount[$id] = $ret["calcpr"][$i];
$maxi = max($maxi, strlen($virus[$id]["name"]));
}
$i++;
}
$maxi++;
aslog("Maxi: $maxi");
/*
*/
if (count($vcount) >= 1) {
arsort($vcount);
aslog($vcount,0,'$vcount');
}
else {
aslog("vcount is an empty array");
}
if ($rate == 3600) {
$ratemsg = "hour";
} else {
$rate = 60;
$ratemsg = "min";
}
/*
* Now that we have the counts of each virus over the time period
* we can build the actual graph
*/
$opts = array();
$opts[] = "--start=$start";
$opts[] = "--end=$end";
$opts[] = "--imgformat=PNG";
$opts[] = "--title=Virus Detection $hostname($timetext to $enddate)";
$opts[] = "--width=580";
$opts[] = "--vertical-label=viruses/$ratemsg";
/*
* The tricky part, building rrd rows but ordering the elements by
* columns...
*/
$width = calc_maxi($maxi);
$total = count($vcount);
$depth = ceil($total / $width);
$mod = $total % $width;
if ($total > 0) {
$keyarray = array_keys ($vcount);
for ($d = 1; $d <= $depth; $d++) {
for ($col = 1; $col <= $width; $col++) {
if ($col == 1) {
$index = $d;
}
elseif ($d != $depth || $mod == 0 || $mod >= $col) {
if (($mod == 0) || ($col - $mod) < 2) {
$index = ($col - 1) * $depth + $d;
} else {
$index = $mod * $depth + ($col - $mod - 1)*($depth - 1) + $d ;
}
} else {
continue;
}
$id = $keyarray[$index - 1];
if ($d == 1 && $col == 1) {
addopts($opts, "AREA", $id, $vcount, $virus[$id]["name"], substr(md5($virus[$id]["name"]),7,6));
} else {
addopts($opts, "STACK", $id, $vcount, $virus[$id]["name"], substr(md5($virus[$id]["name"]),7,6));
}
}
$opts[] = "COMMENT:\\n";
}
}
$opts[] = "COMMENT:\\n";
if ($show_graph_period) {
$opts[] = graph_date($start_period, $end_period);
}
$opts[] = "COMMENT:$as_pkg v$as_version\\r";
$ret = pre_graph($img, $opts, count($opts));
if (!is_array($ret)) {
$err = rrd_error();
asErr("rrd_graph(): $err");
return false;
}
} else {
$ret['ysize'] = 189;
}
if ($ret['ysize'] < 190) {
return "<br><center>NO VIRUS DATA TO GRAPH</center><br>";
}
return "<img src=\"$img\" alt=\"[image: $timetext]\">";
}
/*
* asBGraph($img, $end, $span)
*
* $img - name of the png to generate
* $end - end time in seconds
* $span - string either "daily", "weekly", "monthly", or "yearly"
*
* Build a graph of Blocked emails.
* Returns either a html-valid <img> tag which can be printed, or the
* boolean "false" if something went wrong.
*/
function asSBGraph($img, $end, $span) {
global $rate, $maxi, $libdir, $msgs, $show_graph_period;
global $as_version, $rrdstep, $host, $as_pkg;
/*
* Work out the beginning and the end, based on the span
*/
$limits = getlimits($end, $span);
$end = $limits["end"];
$start = $limits["start"];
$length = $end - $start;
$timetext = $limits["description"];
$start_period = strftime("%A %B %d %H:%M:%S (GMT%z)", $start);
$end_period = strftime("%A %B %d %H:%M:%S (GMT%z)", $end);
$startdate = strftime("%c", $start);
$enddate = strftime("%c", $end);
$nowdate = strftime("%c", time());
$hostname = on_host($host);
if ($rate == 60) {
$rate = 60;
$ratemsg = "min";
} else {
$rate = 3600;
$ratemsg = "hour";
}
$arrcol = array("Passed SPAM" => "6a5aff",
"Blocked SPAM" => "fa5aff",
"Blocked CLEAN" => "7ffa00",
"Passed BANNED" => "cc9900",
"Blocked BANNED" => "ffdd00",
"Passed INFECTED" => "9900aa",
"Blocked INFECTED" => "ff3a3d",
"Passed BAD-HEADER" => "3f40cc",
"Blocked BAD-HEADER" => "594e61");
/*
* It is a two-step process to build the final graph. The average over
* a specific time period seems to be impossible to get without actually
* building a graph. Ie, rrd fetch will not calculate the values we
* need - we would have to sum and average manually.
*
* However the PRINT function of a graph will return what we want
* in an array. So first of all build a graph that PRINTs the average
* of every virus over the selected time period.
*/
$opts = array();
$opts[] = "--start=$start";
$opts[] = "--end=$end";
foreach ($msgs as $id => $name) {
foreach ($arrcol as $matchname => $rest) {
if ($name == $matchname) {
$opts[] = "DEF:v$id=$libdir/$id.rrd:hits:AVERAGE";
$opts[] = "CDEF:gv$id=v$id,UN,0,v$id,IF";
$opts[] = "CDEF:gvt$id=gv$id,$length,*";
$opts[] = "PRINT:gvt$id:AVERAGE:%.0lf";
}
}
}
$ret = pre_graph($img, $opts, count($opts));
$infected = 0;
if (!is_array($ret)) {
$msg = rrd_error();
asErr("rrd_graph(): $msg");
return false;
}
/*
* All results from PRINT commands are in the array $ret["calcpr"][..]
*/
$maxi = 0;
$i = 0;
$bcount = array();
foreach ($msgs as $id => $name) {
foreach ($arrcol as $matchname => $rest) {
if ($name == $matchname) {
/*
* We don't have enough resolution in the rrds
* to calculate the correct counts at low averages,
* so we just don't display them
*/
if ($ret["calcpr"][$i] != 0) {
$bcount[$id] = $ret["calcpr"][$i];
$maxi = max($maxi, strlen($msgs[$id]));
}
$i++;
}
}
}
$maxi++;
aslog("Maxi: $maxi");
/*
*/
if (count($bcount) >= 1) {
arsort($bcount);
aslog($bcount,0,'$bcount');
}
else {
aslog("bcount is an empty array");
}
/*
* Now that we have the counts of each virus over the time period
* we can build the actual graph
*/
$opts = array();
$opts[] = "--start=$start";
$opts[] = "--end=$end";
$opts[] = "--imgformat=PNG";
$opts[] = "--title=Spam/Header Detection $hostname($timetext to $enddate)";
$opts[] = "--width=580";
$opts[] = "--vertical-label=non-virus/$ratemsg";
/*
* The tricky part, building rrd rows but ordering the elements by
* columns...
*/
$width = calc_maxi($maxi);
$total = count($bcount);
$depth = ceil($total / $width);
$mod = $total % $width;
if ($total > 0) {
$keyarray = array_keys ($bcount);
for ($d = 1; $d <= $depth; $d++) {
for ($col = 1; $col <= $width; $col++) {
if ($col == 1) {
$index = $d;
}
elseif ($d != $depth || $mod == 0 || $mod >= $col) {
if (($mod == 0) || ($col - $mod) < 2) {
$index = ($col - 1) * $depth + $d;
} else {
$index = $mod * $depth + ($col - $mod - 1)*($depth - 1) + $d ;
}
} else {
continue;
}
$id = $keyarray[$index - 1];
foreach ($arrcol as $matchname => $color) {
if ($msgs[$id] == $matchname) {
$usecolor = $color;
}
}
if ($d == 1 && $col == 1) {
addopts($opts, "AREA", $id, $bcount, $msgs[$id], $usecolor);
} else {
addopts($opts, "STACK", $id, $bcount, $msgs[$id], $usecolor);
}
}
$opts[] = "COMMENT:\\n";
}
}