#!/usr/bin/perl -w

use strict;
use RRDs;

my $HOSTNAME = `hostname`;
chomp $HOSTNAME;

#my $IMG_URL = 'http://images.noreply.org/tor-running-routers/';
#my $IMG_URL = 'http://new.noreply.org/tor-running-routers/';
my $IMG_URL = '';
my $NOW = time;
my $GMTIME = gmtime($NOW);
my $START_AT = $NOW-4*30*24*3600;
my $END_AT = $NOW-24*3600;
my $OLD_AT = $NOW-7*24*3600;
my $BASE = '/home/weasel/www/www.noreply.org/Build/other/tor/';
if ($HOSTNAME eq 'simona') {
	$BASE = '/scratch/weasel/tor/';
};
my $RRD = $BASE.'rrd/running_Routers.rrd';
my $RRD_DIR = $BASE.'rrd/nodes';
my $INDEX_DIR = $BASE.'index';
my $RESULT_DIR = 'result.new';
my $LONG_TIME_MONTHS = 24;
my $VERBOSE = 0;

# Get list of RRD files
opendir(D,$RRD_DIR) or die ("Cannot opendir $RRD_DIR: $!\n");
my @dirs = grep { -d $RRD_DIR.'/'.$_ && $_ =~ /^[A-F0-9]{2}$/ } readdir(D);
closedir(D);

my @SOURCES;
for my $dir (@dirs) {
	opendir(D,$RRD_DIR.'/'.$dir) or die ("Cannot opendir $RRD_DIR/$dir: $!\n");
	my @sources = grep { /\.rrd$/ } readdir(D);
	@sources = grep { !/^TRAF-/ } @sources;
	@sources = grep {
				my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
				    $atime,$mtime,$ctime,$blksize,$blocks) = stat($RRD_DIR.'/'.$dir.'/'.$_);
				$mtime >= $START_AT;
			} @sources;
	push @SOURCES, @sources;
	closedir(D);
};

# Read hash <-> name mapping
my %hashes_router;
opendir(D,$INDEX_DIR) or die ("Cannot opendir $INDEX_DIR: $!\n");
@dirs = grep { -d $INDEX_DIR.'/'.$_ && $_ =~ /^[A-F0-9]{2}$/ } readdir(D);
closedir(D);
for my $dir (@dirs) {
	opendir(D,$INDEX_DIR.'/'.$dir) or die ("Cannot opendir $INDEX_DIR/$dir: $!\n");
	my @NAME = grep { /\.name$/ } readdir(D);
	closedir(D);
	for my $hash (@NAME) {
		my $f = $INDEX_DIR.'/'.$dir.'/'.$hash;
		open (F, $f) or warn("Cannot open $f: $!\n"), next;
		my $name = <F>;
		my $platform = <F>;
		my $published = <F>;
		chomp $name;
		chomp $platform;
		chomp $published;
		close F;
		$hash =~ s/\.name$//;
		$hashes_router{$hash} = {name => $name, platform => $platform, published => $published };
	};
};

@SOURCES = sort {
		my $aa = $a;
		my $bb = $b;
		$aa =~ s/\.rrd//;
		$bb =~ s/\.rrd//;
		lc($hashes_router{$aa}->{'name'}) cmp lc($hashes_router{$bb}->{'name'}) ||
		$a cmp $b
	} @SOURCES;


my @nodesTraffic = ();

my %body;
my %index;
my $traf_item_counter = 0;

for my $source (@SOURCES) {
	my $hash = $source;
	   $hash =~ s/\.rrd$//;
	my $name = $hashes_router{$hash}->{'name'};
	die ("No name for $hash") unless defined $name;
	my $platform = $hashes_router{$hash}->{'platform'};
	my $published = $hashes_router{$hash}->{'published'};
	my $def = $name;
	my $cdef = 'c_'.$def;
	my $label = $def;
	my $subdir = substr($hash,0,2);

	my $source_traffic = $RRD_DIR .'/'.$subdir.'/TRAF-'. $source;
	$source = $RRD_DIR .'/'.$subdir.'/'. $source;

	my (undef,undef,undef,undef,undef,undef,undef,undef, undef,$mtime,undef,undef,undef) = stat($source);
	my $section = $mtime < $OLD_AT ? 'old' : 'current';


	my @this;
	mkdir ($RESULT_DIR.'/'.$subdir) unless -d ($RESULT_DIR.'/'.$subdir);
	push @this, sprintf($RESULT_DIR.'/'.$subdir.'/node-%s.png', $hash);
	push @this, sprintf('-s %s', $START_AT);
	push @this, sprintf('-e %s', $END_AT);
	push @this, sprintf('-t %s', "$name");
	push @this, sprintf('-aPNG');
	push @this, sprintf('-v %s', "running");
	push @this, sprintf('-w %d', 150);
	push @this, sprintf('-h %d', 50);

	push @this, sprintf('DEF:%s=%s:%s:%s', 'd_runningVerified' , $source, 'runningVerified', 'AVERAGE');
	push @this, sprintf('CDEF:%s=%s'     , 'c_runningVerified' , 'd_runningVerified');

	push @this, sprintf('DEF:%s=%s:%s:%s', 'd_runningUnverified' , $source, 'runningUnverified', 'AVERAGE');
	push @this, sprintf('CDEF:%s=%s'     , 'c_runningUnverified' , 'd_runningUnverified');

	push @this, sprintf('DEF:%s=%s:%s:%s', 'd_exit80Verified' , $source, 'exit80Verified', 'AVERAGE');
	push @this, sprintf('CDEF:c_exit80Verified=d_exit80Verified,0.5,*,c_runningVerified,*');

	push @this, sprintf('%s:%s#%s'    , 'AREA'  , 'c_runningVerified'   , '7777FF' );
	push @this, sprintf('%s:%s#%s'    , 'STACK' , 'c_runningUnverified' , 'FF7700' );
	push @this, sprintf('%s:%s#%s'    , 'AREA' , 'c_exit80Verified' , '00FF00' );

	push @this, sprintf('CDEF:%s=d_runningVerified,0,*,%s,+'     , 'zeroline'         , '0');
	push @this, sprintf('%s:%s' , 'LINE1' , 'zeroline' );

	print "Graphing $hash running.\n" if $VERBOSE;
	my ($averages,$xsize,$ysize) = RRDs::graph @this;
	warn RRDs::error if RRDs::error;

	$body{$section} .= "<h2><a name=\"$hash\">$name</a></h2>".
		"<p>".
		"Last descriptor data:".
		"<blockquote>".
		"platform $platform<br>".
		"published $published".
		"</blockquote>".
		"<p><img width=\"$xsize\" height=\"$ysize\" alt=\"$name running\" src=\"$IMG_URL"."$subdir/node-$hash.png\">\n";
	$index{$section} .= "<li><a href=\"$section.html#$hash\">$name</a></li>\n";

	if (-e $source_traffic) {
		$traf_item_counter++;
		push @nodesTraffic, sprintf('DEF:read%d=%s:read:AVERAGE', $traf_item_counter, $source_traffic);
		push @nodesTraffic, sprintf('DEF:write%d=%s:write:AVERAGE', $traf_item_counter, $source_traffic);
		push @nodesTraffic, sprintf('DEF:max_read%d=%s:read:MAX', $traf_item_counter, $source_traffic);
		push @nodesTraffic, sprintf('DEF:max_write%d=%s:write:MAX', $traf_item_counter, $source_traffic);
		#push @nodesTraffic, sprintf('DEF:min_read%d=%s:read:MIN', $traf_item_counter, $source_traffic);
		#push @nodesTraffic, sprintf('DEF:min_write%d=%s:write:MIN', $traf_item_counter, $source_traffic);
		push @nodesTraffic, sprintf('DEF:max_capacity%d=%s:capacity:MAX', $traf_item_counter, $source);

		push @nodesTraffic, sprintf('CDEF:cleanread%d=read%d,UN,0,read%d,IF', $traf_item_counter, $traf_item_counter, $traf_item_counter);
		push @nodesTraffic, sprintf('CDEF:cleanwrite%d=write%d,UN,0,write%d,IF', $traf_item_counter, $traf_item_counter, $traf_item_counter);
		push @nodesTraffic, sprintf('CDEF:max_cleanread%d=max_read%d,UN,0,max_read%d,IF', $traf_item_counter, $traf_item_counter, $traf_item_counter);
		push @nodesTraffic, sprintf('CDEF:max_cleanwrite%d=max_write%d,UN,0,max_write%d,IF', $traf_item_counter, $traf_item_counter, $traf_item_counter);
		#push @nodesTraffic, sprintf('CDEF:min_cleanread%d=min_read%d,UN,0,min_read%d,IF', $traf_item_counter, $traf_item_counter, $traf_item_counter);
		#push @nodesTraffic, sprintf('CDEF:min_cleanwrite%d=min_write%d,UN,0,min_write%d,IF', $traf_item_counter, $traf_item_counter, $traf_item_counter);
		push @nodesTraffic, sprintf('CDEF:max_cleancapacity%d=max_capacity%d,UN,0,max_capacity%d,IF', $traf_item_counter, $traf_item_counter, $traf_item_counter);

		if ($traf_item_counter == 1) {
			push @nodesTraffic, sprintf('CDEF:aggread%d=cleanread%d', $traf_item_counter, $traf_item_counter);
			push @nodesTraffic, sprintf('CDEF:aggwrite%d=cleanwrite%d', $traf_item_counter, $traf_item_counter);
			push @nodesTraffic, sprintf('CDEF:max_aggread%d=max_cleanread%d', $traf_item_counter, $traf_item_counter);
			push @nodesTraffic, sprintf('CDEF:max_aggwrite%d=max_cleanwrite%d', $traf_item_counter, $traf_item_counter);
			#push @nodesTraffic, sprintf('CDEF:min_aggread%d=min_cleanread%d', $traf_item_counter, $traf_item_counter);
			#push @nodesTraffic, sprintf('CDEF:min_aggwrite%d=min_cleanwrite%d', $traf_item_counter, $traf_item_counter);
			##MAX_AGGCAPACITY##push @nodesTraffic, sprintf('CDEF:max_aggcapacity%d=max_cleancapacity%d', $traf_item_counter, $traf_item_counter);
		} else {
			push @nodesTraffic, sprintf('CDEF:aggread%d=cleanread%d,aggread%d,+', $traf_item_counter, $traf_item_counter, $traf_item_counter-1);
			push @nodesTraffic, sprintf('CDEF:aggwrite%d=cleanwrite%d,aggwrite%d,+', $traf_item_counter, $traf_item_counter, $traf_item_counter-1);
			push @nodesTraffic, sprintf('CDEF:max_aggread%d=max_cleanread%d,max_aggread%d,+', $traf_item_counter, $traf_item_counter, $traf_item_counter-1);
			push @nodesTraffic, sprintf('CDEF:max_aggwrite%d=max_cleanwrite%d,max_aggwrite%d,+', $traf_item_counter, $traf_item_counter, $traf_item_counter-1);
			#push @nodesTraffic, sprintf('CDEF:min_aggread%d=min_cleanread%d,min_aggread%d,+', $traf_item_counter, $traf_item_counter, $traf_item_counter-1);
			#push @nodesTraffic, sprintf('CDEF:min_aggwrite%d=min_cleanwrite%d,min_aggwrite%d,+', $traf_item_counter, $traf_item_counter, $traf_item_counter-1);
			##MAX_AGGCAPACITY##push @nodesTraffic, sprintf('CDEF:max_aggcapacity%d=max_cleancapacity%d,max_aggcapacity%d,+', $traf_item_counter, $traf_item_counter, $traf_item_counter-1);
		};

		for my $thumb (0, 1) {
			@this = ();
			push @this, sprintf($RESULT_DIR.'/'.$subdir.'/node-'.($thumb ? 'small-' : '').'traf-%s.png', $hash);
			#push @this, sprintf('-s %s', '-604800');
			push @this, sprintf('-s %s', $START_AT);
			push @this, sprintf('-e %s', $END_AT);
			push @this, sprintf('-t %s', "$name traffic");
			push @this, sprintf('-v %s', "bytes/sec");
			if ($thumb) {
				push @this, sprintf('-w %d', 150);
				push @this, sprintf('-h %d', 50);
			};
			push @this, sprintf('-aPNG');
			push @this, sprintf('DEF:read=%s:read:AVERAGE', $source_traffic);
			push @this, sprintf('DEF:maxread=%s:read:MAX', $source_traffic);
			#push @this, sprintf('DEF:minread=%s:read:MIN', $source_traffic);
			push @this, sprintf('DEF:write=%s:write:AVERAGE', $source_traffic);
			push @this, sprintf('DEF:maxwrite=%s:write:MAX', $source_traffic);
			#push @this, sprintf('DEF:minwrite=%s:write:MIN', $source_traffic);
			push @this, sprintf('DEF:maxcapacity=%s:capacity:MAX', $source);
			push @this, sprintf('AREA:read#00FF00:Read');
			push @this, sprintf('LINE2:write#0000FF:Write');
			unless ($thumb) {
				push @this, sprintf('LINE1:maxread#009A2C:Read [max 15min]');
				push @this, sprintf('LINE1:maxwrite#5555FF:Write [max 15min]');
				#push @this, sprintf('LINE1:minread#FF76D4:Read [min]');
				#push @this, sprintf('LINE1:minwrite#222255:Write [min]');
				push @this, sprintf('LINE1:maxcapacity#FF5555:Capacity');
			}
			#push @this, sprintf('COMMENT:\\n');
			#push @this, sprintf('COMMENT:%s\\r', $GMTIME);
			#push @this, sprintf('COMMENT:\\n');
			#push @this, sprintf('COMMENT:             Min           Max           Average       Last\\n');
			#push @this, sprintf('COMMENT:Read:     ');
			#push @this, sprintf('GPRINT:minread:MIN:%6.2lf %sb/s ');
			#push @this, sprintf('GPRINT:maxread:MAX:%6.2lf %sb/s ');
			#push @this, sprintf('GPRINT:read:AVERAGE:%6.2lf %sb/s ');
			#push @this, sprintf('GPRINT:read:LAST:%6.2lf %sb/s\\n');
			#push @this, sprintf('COMMENT:Write:    ');
			#push @this, sprintf('GPRINT:minwrite:MIN:%6.2lf %sb/s ');
			#push @this, sprintf('GPRINT:maxwrite:MAX:%6.2lf %sb/s ');
			#push @this, sprintf('GPRINT:write:AVERAGE:%6.2lf %sb/s ');
			#push @this, sprintf('GPRINT:write:LAST:%6.2lf %sb/s\\n');

			#push @this, sprintf('CDEF:%s=read,0,*,%s,+'     , 'zeroline'         , '0');
			#push @this, sprintf('%s:%s' , 'LINE1' , 'zeroline' );

			print "Graphing $hash traffic $thumb.\n" if $VERBOSE;
			($averages,$xsize,$ysize) = RRDs::graph @this;
			warn RRDs::error if RRDs::error;

		};
		$body{$section} .= " <a href=\"$IMG_URL"."$subdir/node-traf-$hash.png\">";
		$body{$section} .= "<img width=\"$xsize\" height=\"$ysize\" alt=\"$name traffic\" src=\"$IMG_URL"."$subdir/node-small-traf-$hash.png\">";
		$body{$section} .= "</a>";
	};
	#$body{$section} .= "<br><a href=\"#_top\">top</a>";
	$body{$section} .= "<br><a href=\"./\">back</a>";
	$body{$section} .= '</p>';
};



sub makeTotalTrafficPic($$$) {
	my ($file, $age, $include15min) = @_;

	my @totalTraffic = ();
	push @totalTraffic, $file;
	push @totalTraffic, sprintf('-s %s', $NOW-$age);

	#push @totalTraffic, sprintf('-s %s', $START_AT);
	push @totalTraffic, sprintf('-e %s', $END_AT);
	#push @totalTraffic, sprintf('-e %s', $NOW-   2*24*3600);
	push @totalTraffic, sprintf('-t %s', "Total Traffic");
	push @totalTraffic, sprintf('-aPNG');
	push @totalTraffic, sprintf('-v %s', "Bandwidth Used");
	#push @totalTraffic, sprintf('-w %d', 600);
	#push @totalTraffic, sprintf('-h %d', 400);
	push @totalTraffic, sprintf('-w %d', 497);
	push @totalTraffic, sprintf('-h %d', 201);
	#push @totalTraffic, sprintf('-h %d', 301);
	#push @totalTraffic, sprintf('-h %d', 271);

	push @totalTraffic, @nodesTraffic;


	push @totalTraffic, sprintf('AREA:aggread%d#00FF00:Read bytes/s', $traf_item_counter);
	push @totalTraffic, sprintf('LINE2:aggwrite%d#0000FF:Write bytes/s', $traf_item_counter);
	push @totalTraffic, sprintf('LINE1:max_aggread%d#009A2C:Read [max 15min]', $traf_item_counter)    if $include15min;
	push @totalTraffic, sprintf('LINE1:max_aggwrite%d#5555FF:Write [max 15min]', $traf_item_counter)  if $include15min;
	#push @totalTraffic, sprintf('LINE1:min_aggread%d#FF76D4:Read [min]', $traf_item_counter);
	#push @totalTraffic, sprintf('LINE1:min_aggwrite%d#222255:Write [min]', $traf_item_counter);
	##MAX_AGGCAPACITY##push @totalTraffic, sprintf('LINE1:max_aggcapacity%d#FF5555:Capacity', $traf_item_counter);

	push @totalTraffic, sprintf('CDEF:zeroline=aggread%d,0,*', $traf_item_counter);
	push @totalTraffic, sprintf('%s:%s' , 'LINE1' , 'zeroline' );

	print "Graphing total traffic $file $age $include15min.\n" if $VERBOSE;
	my ($averages,$xsize,$ysize) = RRDs::graph @totalTraffic;
	warn RRDs::error if RRDs::error;

	return ($averages,$xsize,$ysize);
};

sub makeNumbersGraph($$) {
	my ($file, $age) = @_;

	my @params;
	push @params, $file;
	push @params, sprintf('-s %s', $NOW-$age);

	push @params, sprintf('-e %s', $END_AT);
	#push @params, sprintf('-e %s', $NOW-   2*24*3600);
	push @params, sprintf('-t %s', "Running routers");
	push @params, sprintf('-aPNG');
	push @params, sprintf('-v %s', "# Routers");
	#push @params, sprintf('-w %d', 600);
	#push @params, sprintf('-h %d', 400);
	push @params, sprintf('-w %d', 497);
	push @params, sprintf('-h %d', 301);
	#push @params, sprintf('-h %d', 271);

	push @params, sprintf('DEF:%s=%s:%s:%s', 'd_runningVerified' , $RRD, 'runningVerified', 'AVERAGE');
	push @params, sprintf('CDEF:%s=%s'     , 'c_runningVerified' , 'd_runningVerified');
	push @params, sprintf('DEF:%s=%s:%s:%s', 'd_runningUnverified' , $RRD, 'runningUnverified', 'AVERAGE');
	push @params, sprintf('CDEF:%s=%s'     , 'c_runningUnverified' , 'd_runningUnverified');
	push @params, sprintf('DEF:%s=%s:%s:%s', 'd_exit80Verified' , $RRD, 'exit80Verified', 'AVERAGE');
	push @params, sprintf('CDEF:%s=%s'     , 'c_exit80Verified' , 'd_exit80Verified');

	push @params, sprintf('DEF:%s=%s:%s:%s', 'd_f_runningVerified' , $RRD, 'fastRunningVerified', 'AVERAGE');
	push @params, sprintf('CDEF:%s=%s'     , 'c_f_runningVerified' , 'd_f_runningVerified');
	push @params, sprintf('DEF:%s=%s:%s:%s', 'd_f_runningUnverified' , $RRD, 'fastRunningUnverifi', 'AVERAGE');
	push @params, sprintf('CDEF:%s=%s'     , 'c_f_runningUnverified' , 'd_f_runningUnverified');
	push @params, sprintf('DEF:%s=%s:%s:%s', 'd_f_exit80Verified' , $RRD, 'fastExit80Verified', 'AVERAGE');
	push @params, sprintf('CDEF:%s=%s'     , 'c_f_exit80Verified' , 'd_f_exit80Verified');

	#push @params, sprintf('%s:%s#%s:%s'    , 'AREA'  , 'c_runningVerified'   , '7777FF', 'verified Nodes' );
	#push @params, sprintf('%s:%s#%s:%s'    , 'STACK' , 'c_runningUnverified' , 'FF7700', 'unverified Nodes' );
	#push @params, sprintf('%s:%s#%s:%s'    , 'LINE3'  , 'c_exit80Verified'   , '00FF00', 'verified Nodes exiting to port 80' );
	push @params, sprintf('%s:%s#%s:%s'    , 'AREA'   , 'c_runningVerified'     , 'AAAAFF', 'verified Nodes' );
	push @params, sprintf('%s:%s#%s:%s'    , 'STACK'  , 'c_runningUnverified'   , 'FF7700', '+unverified Nodes' );
	push @params, sprintf('%s:%s#%s:%s'    , 'LINE2'  , 'c_exit80Verified'      , 'BBFFBB', 'verified Nodes exiting to port 80' );

	push @params, sprintf('%s:%s#%s:%s'    , 'LINE3'  , 'c_f_runningVerified'   , '0000FF', 'fast verified Nodes' );
	push @params, sprintf('%s:%s#%s:%s'    , 'STACK'  , 'c_f_runningUnverified' , 'FF0000', '+fast unverified Nodes' );
	push @params, sprintf('%s:%s#%s:%s'    , 'LINE3'  , 'c_f_exit80Verified'    , '00FF00', 'fast verified Nodes exiting to port 80' );

	push @params, sprintf('CDEF:%s=d_runningVerified,0,*,%s,+'     , 'zeroline'         , '0');
	push @params, sprintf('%s:%s' , 'LINE1' , 'zeroline' );



	print "Graphing numbers $file $age.\n" if $VERBOSE;
	my ($averages,$xsize,$ysize) = RRDs::graph @params;
	warn RRDs::error if RRDs::error;

	return ($averages,$xsize,$ysize);
};

my $html = "<html><head><title>Number of Running Tor routers</title></head><body>";
$html .= "<h1><a name=\"_top\">Number of Running Tor routers</a></h1>";
$html .= "<a href=\"../\">..</a>\n";
$html .= << 'EOF';
<p>
<h2>Note: this list is not updated anymore as of August 2007.</h2>
Check out
<a href="http://torstatus.kgprog.com/">one</a>
of the
<a href="http://torstatus.blutmagie.de/">status</a>
<a href="https://torstat.xenobite.eu/">pages</a>
listed on the <a href="https://www.torproject.org/documentation">Tor documentation page</a>.
EOF

my ($averages,$xsize,$ysize);

#my (undef,undef,$hour,undef,undef,undef,$wday,undef,undef) = localtime(time);

makeNumbersGraph($RESULT_DIR.'/totalWeekly.png', 7*24*3600);
makeNumbersGraph($RESULT_DIR.'/totalBiWeekly.png', 14*24*3600);
makeNumbersGraph($RESULT_DIR.'/totalMonthly.png', 35*24*3600);
# XXX do run only every so often
#makeNumbersGraph($RESULT_DIR.'/totalLong.png', $LONG_TIME_MONTHS*30*24*3600) if ($hour < 10 && $wday == 1);
makeNumbersGraph($RESULT_DIR.'/totalLong.png', $LONG_TIME_MONTHS*30*24*3600);
($averages,$xsize,$ysize) = makeNumbersGraph($RESULT_DIR.'/total.png', $NOW - $START_AT);

$html .= "<p><img width=\"$xsize\" height=\"$ysize\" src=\"$IMG_URL"."total.png\"></p>";
$html .= "<p>\"Fast\" means a capacity of over 20,000 bytes/second</p>\n";
$html .= "<p>Number of routers over the <a href=\"$IMG_URL"."totalLong.html\">last $LONG_TIME_MONTHS months</a> | ";
$html .= "   <a href=\"$IMG_URL"."totalMonthly.html\">last month</a> |";
$html .= "   <a href=\"$IMG_URL"."totalBiWeekly.html\">last 2 weeks</a> |";
$html .= "   <a href=\"$IMG_URL"."totalWeekly.html\">last week</a></p>";


makeTotalTrafficPic($RESULT_DIR.'/totalTrafficWeekly.png', 7*24*3600, 1);
makeTotalTrafficPic($RESULT_DIR.'/totalTrafficBiWeekly.png', 14*24*3600, 1);
makeTotalTrafficPic($RESULT_DIR.'/totalTrafficMonthly.png', 35*24*3600, 0);
# XXX do run only every so often
#makeTotalTrafficPic($RESULT_DIR.'/totalTrafficLong.png', $LONG_TIME_MONTHS*30*24*3600, 0) if ($hour < 10 && $wday == 1);
makeTotalTrafficPic($RESULT_DIR.'/totalTrafficLong.png', $LONG_TIME_MONTHS*30*24*3600, 0);
($averages,$xsize,$ysize) = makeTotalTrafficPic($RESULT_DIR.'/totalTraffic.png', $NOW - $START_AT, 0);

$html .= "<p><img width=\"$xsize\" height=\"$ysize\" src=\"$IMG_URL"."totalTraffic.png\"></p>";
$html .= "<p>Bandwidth usage for <a href=\"$IMG_URL"."totalTrafficLong.html\">last $LONG_TIME_MONTHS months</a> | ";
$html .= "   <a href=\"$IMG_URL"."totalTrafficMonthly.html\">last month</a> |";
$html .= "   <a href=\"$IMG_URL"."totalTrafficBiWeekly.html\">last 2 weeks</a> |";
$html .= "   <a href=\"$IMG_URL"."totalTrafficWeekly.html\">last week</a></p>";



$html .= "<p>The directory is downloaded from ";
  $html .= "<a href=\"http://tor.noreply.org/tor/\">http://tor.noreply.org/tor/</a>";

$html .= " at regular intervals.<br>\n";
#$html .= "Other directory sources are ";
#  $html .= "<a href=\"http://moria.seul.org:9031/tor/\">http://moria.seul.org:9031/tor/</a>";
#
#$html .= " and\n";
#  $html .= "<a href=\"http://moria.seul.org:9032/tor/\">http://moria.seul.org:9032/tor/</a>";

$html .= ".";
$html .= "<h1>Recent Nodes</h1>";
$html .= "<ul>".$index{'current'}."</ul>";
#$html .= $body{'current'};
$html .= "<h1>Older Nodes</h1>";
$html .= "<ul>".$index{'old'}."</ul>";
#$html .= $body{'current'};
$html .= "<br><br><br>\n";
$html .= 'Images created with Tobi Oetiker\'s <a href="http://people.ee.ethz.ch/~oetiker/webtools/rrdtool/">rrdtool</a>'."\n";
$html .= "<hr>\nBuilt at $GMTIME on $HOSTNAME<br>\n";
$html .= "<a href=\"mailto:web\@palfrader.org\">Peter Palfrader &lt;web\@palfrader.org&gt;</a>\n";
$html .= "</body></html>\n";

open (F, ">$RESULT_DIR/index.html") or die ("Cannot open index.html: $!\n");
print F $html;
close F;

open (F, ">$RESULT_DIR/current.html") or die ("Cannot open current.html: $!\n");
print F "<html><head><title>Current Tor Routers</title></head><body>",
	"<h1><a name=\"_top\">Current Tor routers</a></h1>",
	"<a href=\"./\">./</a><br>\n",
	$body{'current'},
	"<br><br><br>\n",
	'Images created with Tobi Oetiker\'s <a href="http://people.ee.ethz.ch/~oetiker/webtools/rrdtool/">rrdtool</a>'."\n",
	"<hr>\nBuilt at $GMTIME on $HOSTNAME<br>\n",
	"<a href=\"mailto:web\@palfrader.org\">Peter Palfrader &lt;web\@palfrader.org&gt;</a>\n",
	"</body></html>\n";
close F;

open (F, ">$RESULT_DIR/old.html") or die ("Cannot open old.html: $!\n");
print F "<html><head><title>Older Tor Routers</title></head><body>",
	"<h1><a name=\"_top\">Older Tor routers</a></h1>",
	"<a href=\"./\">./</a><br>\n",
	$body{'old'},
	"<br><br><br>\n",
	'Images created with Tobi Oetiker\'s <a href="http://people.ee.ethz.ch/~oetiker/webtools/rrdtool/">rrdtool</a>'."\n",
	"<hr>\nBuilt at $GMTIME on $HOSTNAME<br>\n",
	"<a href=\"mailto:web\@palfrader.org\">Peter Palfrader &lt;web\@palfrader.org&gt;</a>\n",
	"</body></html>\n";
close F;


my %imgs = (
	totalLong => 'Number of routers over the last '.$LONG_TIME_MONTHS.' months',
	totalMonthly => 'Number of routers over the last month',
	totalBiWeekly => 'Number of routers over the last 2 weeks',
	totalWeekly => 'Number of routers over the last week',
	totalTrafficLong => 'Traffic over the last '.$LONG_TIME_MONTHS.' months',
	totalTrafficMonthly => 'Traffic over the last month',
	totalTrafficBiWeekly => 'Traffic over the last 2 weeks',
	totalTrafficWeekly => 'Traffic over the last week' );

for my $key (keys %imgs) {
	open (F, ">$RESULT_DIR/$key.html") or die ("Cannot open $key.html: $!\n");
	print F "<html><head><title>$imgs{$key}</title></head><body>",
		"<h1>$imgs{$key}</h1>",
		"<a href=\".\">back</a>",
		"<p>",
		"<img src=\"$key.png\">",
		"<br><br><br>\n",
		"<hr>\nBuilt at $GMTIME on $HOSTNAME<br>\n",
		"<a href=\"mailto:web\@palfrader.org\">Peter Palfrader &lt;web\@palfrader.org&gt;</a>\n",
		"</body></html>\n";
	close F;
};