#!/usr/local/bin/perl
##########################################################################
# #
# This script was written by S.Nazin (http://xray.sai.msu.su/~leng/) #
# Sternberg Astronomical Institute, Moscow University. #
# #
##########################################################################
use GD;
##########################################################################
# #
# USER DEFINED VARIABLES #
# #
##########################################################################
$titleFont = gdLargeFont;
$textFont = gdMediumBoldFont;
$smallFont = gdSmallFont;
$tinyFont = gdTinyFont;
$topmargin = 3;
@geometry = ( 640, 480 );
$graphLmargin = 70;
$graphRmargin = 125;
$graphTmargin = 23;
$graphBmargin = 50;
$XTics = 8;
$YTics = 10;
$TicLI = 0;
$TicLO = 5;
$maxSize = 0;
##########################################################################
# #
# PRECALCULATED VARIABLES (DON'T CHANGE THEM) #
# #
##########################################################################
$graphL = $graphLmargin;
$graphR = $geometry[0]-$graphRmargin;
$graphT = $graphTmargin;
$graphB = $geometry[1]-$graphBmargin;
$graphW = $graphR - $graphL;
$graphH = $graphB - $graphT;
%Monthes = (
'Jan' => 0,
'Feb' => 31,
'Mar' => 59,
'Apr' => 90,
'May' => 120,
'Jun' => 151,
'Jul' => 181,
'Aug' => 212,
'Sep' => 243,
'Oct' => 273,
'Nov' => 304,
'Dec' => 334,
);
%DoNotPlot = (
'population' => 1,
'iauc' => 1,
);
##########################################################################
# #
# M A I N #
# #
##########################################################################
$params = $ENV{'QUERY_STRING'};
$Iam = $ENV{'SCRIPT_NAME'};
foreach (split( /&/, $params )){
($key,$val) = split( /=/, $_ );
$params{$key} = $val;
}
unless( exists $params{'img'} ){
print "Content-type: text/html\n\n";
print qq'
Disk usage by user
Go to frame version
';
exit;
}
##########################################################################
# #
# Image Creation #
# #
##########################################################################
$im = new GD::Image(@geometry);
$white = $im->colorAllocate(255, 255, 255);
$yellow = $im->colorAllocate(255,255,208);
$blue = $im->colorAllocate(0,0,208);
$black = $im->colorAllocate(0,0,0);
@colors = (
$im->colorAllocate(224,0,0),
$im->colorAllocate(0,224,0),
$im->colorAllocate(0,0,224),
$im->colorAllocate(224,0,224),
$im->colorAllocate(112,0,0),
$im->colorAllocate(0,112,0),
$im->colorAllocate(112,112,0),
$im->colorAllocate(224,112,0),
$im->colorAllocate(112,0,224),
$im->colorAllocate(112,112,112),
);
$im->fill(1,1,$yellow);
$str = &GetDU();
$imax = scalar( @TimeStamps ) - 1;
$RealMax = &FindMax();
$maxSize = $params{'scale'}*1000;
$maxSize = $RealMax if( not $maxSize or $maxSize > $RealMax );
$maxSize = 10000 if( $maxSize < 10000 );
$SizeStep = $maxSize/$YTics/1000;
$TimeStep = ($TimeStamps[$imax]-$TimeStamps[1])/$XTics;
$im->string($titleFont,$graphL+($graphW-45*$titleFont->width)/2,
$topmargin,"Last updated at: $str",$black);
$im->rectangle( $graphL, $graphT, $graphR, $graphB, $black );
for( $i=0; $i<=$XTics; $i++ ){
$im->line( $graphL+$i*$graphW/$XTics, $graphB-$TicLI,
$graphL+$i*$graphW/$XTics, $graphB+$TicLO, $black );
$curTime = $TimeStamps[1]+$i*$TimeStep;
$date = int( $curTime/24/3600 );
$time = int(($curTime-24*3600*$date)/60);
$h = int($time/60);
$m = $time - 60*$h;
$date = $date - 365*int($date/365);
foreach (sort {$Monthes{$b} <=> $Monthes{$a}} keys %Monthes){
$month = $_;
last if( $date > $Monthes{$_} );
}
$date = $date - $Monthes{$month};
$im->string($smallFont,
$graphL+$i*$graphW/$XTics-3*$smallFont->width,
$graphB+$TicLO+5,
"$date $month", $black);
$im->string($tinyFont,
$graphL+$i*$graphW/$XTics-2.5*$tinyFont->width,
$graphB+$TicLO+5+$smallFont->height+2,
sprintf("%02d:%02d",$h,$m), $black);
}
for( $i=0; $i<=$YTics; $i++ ){
$im->line( $graphL-$TicLO, $graphB-$i*$graphH/$YTics,
$graphL+$TicLI, $graphB-$i*$graphH/$YTics, $black );
$im->dashedLine( $graphL, $graphB-$i*$graphH/$YTics,
$graphR, $graphB-$i*$graphH/$YTics, $black );
$color = $black;
$color = $blue if( $i*$SizeStep >= 10 );
$im->string($textFont,$graphL-$TicLO-8*$textFont->width,
$graphB-$i*$graphH/$YTics-$textFont->height/2,
sprintf( "%4d Mb", $i*$SizeStep ), $color );
}
$im->string($textFont,$graphR+($graphRmargin-15*$textFont->width)/2,
$graphT,"on off",$black);
foreach $user (sort {${$b}[$imax] <=> ${$a}[$imax]} keys %Users){
next if( $DoNotPlot{$user} );
$color = shift @colors;
push @colors, $color;
&PlotLegend( $user, $color );
&PlotUser( $user, $color ) unless($params{$user} eq 'off');
}
print "Content-type: image/gif\nPragma: no-cache\n\n";
print $im->gif;
########################################################################
sub GetDU{
my( $date_str, $time );
my $i = 0;
open( FIN, "){
next if( /^-/ );
if( /^(\d+)\s+\/.1\/home\/(\w+)\s*$/ ){
${$2}[$i] = $1;
$Users{$2} = 1;
}elsif( /^\w{3}\s+(\w{3})\s+(\d+)\s+(\d+):(\d+):(\d+)\s+\S+\s+(\d+)\s*$/ ){
$date_str = $_;
$time = $5+60*($4+60*($3+24*($2+$Monthes{$1}+365*($6-1997))));
$i++;
$TimeStamps[$i] = $time;
}else{
}
}
close( FIN );
return( $date_str );
}
########################################################################
sub FindMax {
my $max = 0;
my $user, $i;
foreach $user (keys %Users){
next if( $DoNotPlot{$user} or ($params{$user} eq 'off') );
for( $i = 1; $i<=$imax; $i++ ){
$max = ${$user}[$i] if( $max < ${$user}[$i] );
}
}
$max = (int($max/50000)+1)*50000;
return $max;
}
########################################################################
sub PlotUser {
my( $user, $color ) = @_;
my $prevX = 0;
my $prevY = $graphH*${$user}[1]/$maxSize;
$prevY = $graphH-1 if( $prevY >= $graphH );
for( $i = 2; $i<=$imax; $i++ ){
$newX = $graphW*($i-1)/($imax-1);
$newY = $graphH*${$user}[$i]/$maxSize;
$newY = $graphH-1 if( $newY >= $graphH );
$im->line( $graphL+$prevX, $graphB-$prevY,
$graphL+$newX, $graphB-$newY, $color );
$prevX = $newX;
$prevY = $newY;
}
}
########################################################################
sub PlotLegend {
my( $user, $color ) = @_;
$userNo++;
$im->string($textFont,$graphR+($graphRmargin-$textFont->width)/2,
$graphT+($userNo)*$textFont->height,$user,$color);
$crossL = $graphR+($graphRmargin-14*$textFont->width)/2;
$crossR = $graphR+($graphRmargin-12*$textFont->width)/2;
$crossT = $graphT+($userNo+1)*$textFont->height-$textFont->width-2;
$crossB = $graphT+($userNo+1)*$textFont->height-2;
$im->rectangle( $crossL, $crossT, $crossR, $crossB, $black );
$im->line( $crossL, $crossT, $crossR, $crossB, $black ) unless( $params{$user} eq 'off' );
$im->line( $crossL, $crossB, $crossR, $crossT, $black ) unless( $params{$user} eq 'off' );
$crossL += 3.5*$textFont->width;
$crossR += 3.5*$textFont->width;
$im->rectangle( $crossL, $crossT, $crossR, $crossB, $black );
$im->line( $crossL, $crossT, $crossR, $crossB, $black ) if( $params{$user} eq 'off' );
$im->line( $crossL, $crossB, $crossR, $crossT, $black ) if( $params{$user} eq 'off' );
}
sub WriteMapElement {
my $user = $_[0];
$userNo++;
$crossT = $graphT+($userNo+1)*$textFont->height-$textFont->width-2;
$crossB = $graphT+($userNo+1)*$textFont->height-2;
$crossL = $graphR+($graphRmargin-14*$textFont->width)/2;
$crossR = $graphR+($graphRmargin-12*$textFont->width)/2;
$crossL += 3.5*$textFont->width unless( $params{$user} eq 'off' );
$crossR += 3.5*$textFont->width unless( $params{$user} eq 'off' );
$crossL = int($crossL);
$crossR = int($crossR);
$newparams = $params;
if( $params{$user} eq 'off' ){
$newparams =~ s/(&$user=off|$user=off&|\A$user=off\Z)//;
}else{
$newparams .= '&' if( $params );
$newparams .= "$user=off";
}
$newparams = '?'.$newparams if( $newparams );
print qq'
';
}
__END__