[upsgraph] / upsgraph.pl

#!/usr/bin/perl -w

#Due to memory leak in Debian squeeze (Bug #545519)
my $use_rrds = 0;
my $rrd_result = 0;

if ((@ARGV != 1) && (@ARGV != 2)) {
	print STDERR "Syntax: ${0} configfile [uid]\n";
	exit(1);
}

use Net::SNMP;
use IO::Socket::INET;
use IO::Select;
use RRDs;
use File::Copy;
use Data::Dumper;

$UPSGRAPH::outdir = "";
$UPSGRAPH::daysCovered = 370;
$UPSGRAPH::step = 60;
$UPSGRAPH::stepsPerHour = (60 * 60) / $UPSGRAPH::step;
$UPSGRAPH::keep = ($UPSGRAPH::daysCovered*24*60*60)/$UPSGRAPH::step;
$UPSGRAPH::keepHours = ($UPSGRAPH::daysCovered*24*60*60)/$UPSGRAPH::stepsPerHour/$UPSGRAPH::step;
$UPSGRAPH::hosts = ();

do $ARGV[0] or die "can't read config: $!";

my $outdir = $UPSGRAPH::outdir;
my $step = $UPSGRAPH::step;
my $stepsPerHour = $UPSGRAPH::stepsPerHour;
my $keep = $UPSGRAPH::keep;
my $keepHours = $UPSGRAPH::keepHours;
my $hosts = $UPSGRAPH::hosts;

sub rrd_update(@) {
	my @args = @_;

	if ($use_rrds == 1) {
		RRDs::update(@args);
		$rrd_result = RRDs::error;
	} else {
		$rrd_result = system("rrdtool", "update", @args);
	}
}

sub rrd_graph(@) {
	my @args = @_;
	my @rrd_out = ();

	if ($use_rrds == 1) {
		@rrd_out = RRDs::graph(@args);
		$rrd_result = RRDs::error;
	} else {
		my $rrd_stdout;

		open(RRDFD, '-|', 'rrdtool', 'graph', @args);
		while(<RRDFD>) {
			chomp;
			$rrd_stdout = $_;
		}
		close(RRDFD);
		$rrd_result = $?;
		if ($rrd_result == 0) {
			push @rrd_out, 0;
			push @rrd_out, split(/x/, $rrd_stdout);
		}
	}

	return @rrd_out;
}

sub rrdcreate(@) {
	my $newrrd = shift;
	my $field = shift;
	my $vars = shift;
	my $start = shift;

	my @cmd = ("${newrrd}", "--step=${step}");

	if (defined($start)) {
		push @cmd, "--start=${start}";
	}

	push @cmd, "DS:${field}:GAUGE:600:" .
		$vars->{$field}->{'min'} . ":" .
		$vars->{$field}->{'max'};

	push @cmd, "RRA:AVERAGE:0.5:1:${keep}";
	push @cmd, "RRA:MIN:0.4:${stepsPerHour}:${keepHours}";
	push @cmd, "RRA:MAX:0.4:${stepsPerHour}:${keepHours}";

	RRDs::create(@cmd);
	if (RRDs::error) {
		print "Error while creating: " . RRDs::error . "\n";
		exit 1;
	}
}

sub fetch_snmp(@) {
	my $address = shift;
	my $community = shift;
	my $oid = shift;

	(my $session, my $error) = Net::SNMP->session(Hostname => $address,
			Community => $community);

	if (!$session) {
		print STDERR "session error: $error";
		return undef;
	}

	$session->translate(0);

	my $result = $session->get_request($oid);

	$session->close;

	return undef if (!defined($result));

	$result->{$oid};
}

sub fetch_tcp(@) {
	my $address = shift;
	my $port = shift;

	my $sock = IO::Socket::INET->new(PeerAddr => $address,
			PeerPort => $port,
			Proto => 'tcp',
			Timeout => 1);

	return undef if (!$sock);

	my $select = IO::Select->new($sock);

	my $value = undef;

	if ($select->can_read(1)) {
		chomp($value) if (sysread($sock, $value, 4096) > 0);
	}

	close($sock);

	if (!$value) {
		return undef;
	}

	$value=~ s/\s//g;

	$value;
}

sub fetch_tcp_multi(@) {
	my $address = shift;
	my $port = shift;
	my $delimiter = shift;
	my %values;

	my $sock = IO::Socket::INET->new(PeerAddr => $address,
			PeerPort => $port,
			Proto => 'tcp',
			Timeout => 1);

	return undef if (!$sock);

	my $select = IO::Select->new($sock);

	while($select->can_read(1)) {
		if (sysread($sock, my $buf, 16384) > 0) {
			$buf=~s/\r//g;
			foreach my $line (split(/\n/, $buf)) {
				(my $key, my $value) = split(/${delimiter}/, $line);
				$value=~ s/\s//g;
				$values{$key} = $value;
			}
		} else {
			last;
		}
	}

	close($sock);

	%values;
}

if ($> == 0) {
	if (@ARGV != 2) {
		print STDERR "Running as root, please provide UID as 2th argument!\n";
		exit(1);
	}

	print "Running as root, switching to ".$ARGV[1]."\n";
	$< = $> = $ARGV[1];
}

foreach my $host (@$hosts) {
	my $rrdfile = $host->{'rrdfile'};

	foreach my $var (keys(%{$host->{'vars'}})) {
		$host->{'vars'}->{$var}->{'min'} = 'U' if (!defined($host->{'vars'}->{$var}->{'min'}));
		$host->{'vars'}->{$var}->{'max'} = 'U' if (!defined($host->{'vars'}->{$var}->{'max'}));
	}

	if (-e "${rrdfile}") {
		print "Reading old ${rrdfile} to preserve data...\n";

		my $rrdinfo = RRDs::info("${rrdfile}");
		if (RRDs::error) {
			print "Error while getting info: " . RRDs::error . "\n";
			exit 1;
		}

		(my $start, my $ostep, my $names, my $data) =
			RRDs::fetch("${rrdfile}",
					"-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})),
					"AVERAGE");

		if (RRDs::error) {
			print "Error while fetching data: " . RRDs::error . "\n";
			exit 1;
		}

		foreach my $field (@$names) {
			if (! -e "${rrdfile}.${field}") {
				rrdcreate("${rrdfile}.${field}",
					"${field}",
					$host->{'vars'},
					(${start}-${ostep}));
			}
		}

		my $pos = $start;
		foreach my $line (@$data) {
			foreach my $field (@$names) {
				my $val = shift (@$line);
				$val = 'U' if (!defined($val));

				RRDs::update("${rrdfile}.${field}", "${pos}:${val}");
				if (RRDs::error) {
					print "Can't insert data: " . RRDs::error . "\n";
					exit 1;
				}

			}

			$pos += $ostep;

			if ((($pos-$start)/$ostep) == $#$data) {
				last;
			}
		}

		rename("${rrdfile}", "${rrdfile}.old") or die "Can't rename old file: $!\n";
	}

	foreach my $field (@{$host->{'fields'}}) {
		if (! -e "${rrdfile}.${field}") {
			print "Creating ${rrdfile}.${field}...\n";
			rrdcreate("${rrdfile}.${field}",
				"${field}",
				$host->{'vars'});
		}

		my $rrdinfo = RRDs::info("${rrdfile}.${field}");
		if (RRDs::error) {
			print "Error while getting info: " . RRDs::error . "\n";
			exit 1;
		}

		if (defined($rrdinfo->{"ds[${field}].min"})) {
			if ($rrdinfo->{"ds[${field}].min"} ne $host->{'vars'}->{$field}->{'min'}) {
				RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'});
			}
		} else {
			if ($host->{'vars'}->{$field}->{'min'} ne 'U') {
				RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'});
			}
		}

		if (RRDs::error) {
			print "Error while setting min: " . RRDs::error . "\n";
			exit 1;
		}

		if (defined($rrdinfo->{"ds[${field}].max"})) {
			if ($rrdinfo->{"ds[${field}].max"} ne $host->{'vars'}->{$field}->{'max'}) {
				RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'});
			}
		} else {
			if ($host->{'vars'}->{$field}->{'max'} ne 'U') {
				RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'});
			}
		}

		if (RRDs::error) {
			print "Error while setting max: " . RRDs::error . "\n";
			exit 1;
		}
		    
		if ($rrdinfo->{'rra[0].rows'} != $keep ||
			!defined($rrdinfo->{'rra[1].rows'}) || $rrdinfo->{'rra[1].rows'} != $keepHours) {

			print "Resizing ${rrdfile}.${field} from " . $rrdinfo->{'rra[0].rows'} .
				" to ${keep} samples.\n";

			(my $start, my $ostep, my $names, my $data) =
				RRDs::fetch("${rrdfile}.${field}",
						"-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})),
						"AVERAGE");

			if (RRDs::error) {
				print "Error while fetching data: " . RRDs::error . "\n";
				exit 1;
			}

			rrdcreate("${rrdfile}.${field}.new",
				"${field}",
				$host->{'vars'},
				(${start}-${ostep}));

			print "Preserving data in file ${rrdfile}.${field} since " . localtime($start) . "\n";

			my $pos = $start;
			foreach my $line (@$data) {
				my $vline = "${pos}";

				foreach my $val (@$line) {
					$val = 'U' if (!defined($val));
					$vline .= ":${val}";
				}
				RRDs::update("${rrdfile}.${field}.new", $vline) or die "Can't insert data\n";

				if (RRDs::error) {
					print "Error while updating: " . RRDs::error . "\n";
					exit 1;
				}
				$pos += $ostep;

				if ((($pos-$start)/$ostep) == $#$data) {
					last;
				}
			}

			rename("${rrdfile}.${field}", "${rrdfile}.${field}.old") or die "Can't rename old file: $!\n";
			rename("${rrdfile}.${field}.new", "${rrdfile}.${field}") or die "Can't rename new file: $!\n";

			$rrdinfo = RRDs::info("${rrdfile}.${field}");
			if (RRDs::error) {
				print "Error while getting info: " . RRDs::error . "\n";
				exit 1;
			}

			if ($rrdinfo->{'rra[0].rows'} != $keep) {
				print "Failed!\n";
				exit 1;
			}
		}
	}
}

my $child = fork();

die "fork failed!" if (!defined($child));

exit 0 if ($child != 0);

while(1) {
	open(HTML, ">${outdir}/index.html.new");

	print HTML '<html><head><meta http-equiv="refresh" content="60"/><meta http-equiv="cache-control" content="no-cache"/><meta http-equiv="pragma" content="no-cache"/><meta http_equiv="expires" content="Sat, 26 Jul 1997 05:00:00 GMT"/><title>Status</title></head>';
	print HTML '<body bgcolor="#ffffff">';

	foreach my $host (@$hosts) {
		print HTML "[<a href=\"#".${host}->{'name'}."\">".${host}->{'name'}."</a>]&nbsp;";
	}
	print HTML "<br>\n";

	foreach my $host (@$hosts) {
		print HTML "<br>\n";
		print HTML "<a name=\"".${host}->{'name'}."\"></a>\n";
		my $vars = $host->{'vars'};
		my $rrdfile = $host->{'rrdfile'};
		my $hostname = $host->{'name'};
		my %multi_values = ();

		foreach my $var (@{$host->{'fields'}}) {
			delete $vars->{$var}->{'value'};

			my $result;

			if ((!defined($vars->{$var}->{'proto'})) ||
			    ($vars->{$var}->{'proto'} eq '') ||
			    ($vars->{$var}->{'proto'} eq 'snmp')) {
				$result = fetch_snmp($host->{'address'}, $host->{'community'}, $vars->{$var}->{'oid'});
			} elsif ($vars->{$var}->{'proto'} eq 'tcp') {
				$result = fetch_tcp($host->{'address'}, $vars->{$var}->{'port'});
			} elsif ($vars->{$var}->{'proto'} eq 'tcp_multi') {
				if (defined($multi_values{$vars->{$var}->{'multi_id'}})) {
					$result = $multi_values{$vars->{$var}->{'multi_id'}}
				} else {
					my %values = fetch_tcp_multi($host->{'address'}, $vars->{$var}->{'port'}, $vars->{$var}->{'multi_delimiter'});
					@multi_values{keys %values} = values %values;
					$result = $multi_values{$vars->{$var}->{'multi_id'}};
				}
			}

			next unless (defined $result);

			$vars->{$var}->{'value'} = $result;
			if (defined($vars->{$var}->{'factor'})) {
				$vars->{$var}->{'value'} *= $vars->{$var}->{'factor'};
			}
		}

		foreach my $var (@{$host->{'fields'}}) {
			if (!(defined($vars->{$var}->{'value'}))) {
				$vars->{$var}->{'value'} = 'U';
			}
			rrd_update("${rrdfile}.${var}", "N:" . $vars->{$var}->{'value'});
		}
		if ($rrd_result) {
			print "Error while updating: " . $rrd_result . "\n";
		}

		foreach my $var (@{$host->{'fields'}}) {
			my @graphdef = ('-P', "--lazy", "-t", $hostname." - ".$vars->{$var}->{'name'}, "DEF:${var}=${rrdfile}.${var}:${var}:AVERAGE", "LINE1:${var}#FF0000");
			
			push @graphdef, "DEF:${var}-min=${rrdfile}.${var}:${var}:MIN", "LINE1:${var}-min#0000FF";
			push @graphdef, "DEF:${var}-max=${rrdfile}.${var}:${var}:MAX", "LINE1:${var}-max#00FF00";
			push @graphdef, "VDEF:cur=${var},LAST";
			push @graphdef, 'GPRINT:cur:Current\\: <span foreground="#FF0000">%.2lf</span>\\r';

			my $mtime;
			$mtime=(stat("${outdir}/${hostname}.${var}.png.work"))[9];

			(my $averages, my $width, my $height) =
				rrd_graph("${outdir}/${hostname}.${var}.png.work",
						"-w", "720", @graphdef);

			pop @graphdef;
			pop @graphdef;

			if ($rrd_result) {
				print "Error while graphing: " . $rrd_result . "\n";
			} else {
				my $newmtime=(stat("${outdir}/${hostname}.${var}.png.work"))[9];
				if ((!defined($mtime)) || ($newmtime != $mtime)) {
					copy("${outdir}/${hostname}.${var}.png.work", "${outdir}/${hostname}.${var}.png.new");
					rename("${outdir}/${hostname}.${var}.png.new", "${outdir}/${hostname}.${var}.png");
				}
			}

			print HTML "<a href=\"${hostname}.${var}.html\"><img src=\"${hostname}.${var}.png\" width=\"${width}\" height=\"${height}\" border=\"0\"></a><br>\n";

			open (HTML2, ">${outdir}/${hostname}.${var}.html.new");
			print HTML2 '<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta http-equiv="refresh" content="60"/><meta http-equiv="cache-control" content="no-cache"/><meta http-equiv="pragma" content="no-cache"/><meta http_equiv="expires" content="Sat, 26 Jul 1997 05:00:00 GMT"/><title>' . $vars->{$var}->{'name'} . '</title></head>';
			print HTML2 '<body bgcolor="#ffffff">';

			push @graphdef, "VDEF:min=${var}-min,MINIMUM";
			push @graphdef, "GPRINT:min:Minimum\\: %.2lf";

			push @graphdef, "VDEF:avg=${var},AVERAGE";
			push @graphdef, "GPRINT:avg:Average\\: %.2lf";

			push @graphdef, "VDEF:max=${var}-max,MAXIMUM";
			push @graphdef, "GPRINT:max:Maximum\\: %.2lf";

			push @graphdef, "VDEF:cur=${var},LAST";
			push @graphdef, "GPRINT:cur:Current\\: %.2lf";

			$mtime=(stat("${outdir}/${hostname}.${var}.long.png.work"))[9];
			($averages, $width, $height) =
				rrd_graph("${outdir}/${hostname}.${var}.long.png.work",
						"-w", "1008", @graphdef);

			if ($rrd_result) {
				print "Error while graphing: " . $rrd_result . "\n";
			} else {
				my $newmtime=(stat("${outdir}/${hostname}.${var}.long.png.work"))[9];
				if ((!defined($mtime)) || ($newmtime != $mtime)) {
					copy("${outdir}/${hostname}.${var}.long.png.work", "${outdir}/${hostname}.${var}.long.png.new");
					rename("${outdir}/${hostname}.${var}.long.png.new", "${outdir}/${hostname}.${var}.long.png");
				}
			}

			print HTML2 "<img src=\"${hostname}.${var}.long.png\" width=\"${width}\" height=\"${height}\"><br>\n";

			$mtime=(stat("${outdir}/${hostname}.${var}.week.png.work"))[9];
			($averages, $width, $height) =
				rrd_graph("${outdir}/${hostname}.${var}.week.png.work",
						"-w", "1008", "-e", "now", "-s", "end-1w", @graphdef);

			if ($rrd_result) {
				print "Error while graphing: " . $rrd_result . "\n";
			} else {
				my $newmtime=(stat("${outdir}/${hostname}.${var}.week.png.work"))[9];
				if ((!defined($mtime)) || ($newmtime != $mtime)) {
					copy("${outdir}/${hostname}.${var}.week.png.work", "${outdir}/${hostname}.${var}.week.png.new");
					rename("${outdir}/${hostname}.${var}.week.png.new", "${outdir}/${hostname}.${var}.week.png");
				}
			}

			print HTML2 "<img src=\"${hostname}.${var}.week.png\" width=\"${width}\" height=\"${height}\"><br>\n";

			$mtime=(stat("${outdir}/${hostname}.${var}.year.png.work"))[9];
			($averages, $width, $height) =
				rrd_graph("${outdir}/${hostname}.${var}.year.png.work",
						"-w", "1008", "-e", "now", "-s", "end-1y", @graphdef);

			if ($rrd_result) {
				print "Error while graphing: " . $rrd_result . "\n";
			} else {
				my $newmtime=(stat("${outdir}/${hostname}.${var}.year.png.work"))[9];
				if ((!defined($mtime)) || ($newmtime != $mtime)) {
					copy("${outdir}/${hostname}.${var}.year.png.work", "${outdir}/${hostname}.${var}.year.png.new");
					rename("${outdir}/${hostname}.${var}.year.png.new", "${outdir}/${hostname}.${var}.year.png");
				}
			}

			print HTML2 "<img src=\"${hostname}.${var}.year.png\" width=\"${width}\" height=\"${height}\"><br>\n";

			print HTML2 "</body></html>\n";
			close(HTML2);
			rename("${outdir}/${hostname}.${var}.html.new", "${outdir}/${hostname}.${var}.html");
		}
	}

	print HTML "</body></html>\n";
	print HTML "<br>Generated on: " . localtime(time());
	print HTML ' by <a href="http://git.zerfleddert.de/cgi-bin/gitweb.cgi/upsgraph">upsgraph</a>.';

	close(HTML);

	rename("${outdir}/index.html.new", "${outdir}/index.html");

	sleep(${step}/2);
}
Commit	Line	Data
e18c93b3 MG	1	#!/usr/bin/perl -w
e18c93b3 MG	2
f49c04f7 MG	3	#Due to memory leak in Debian squeeze (Bug #545519)
	4	my $use_rrds = 0;
	5	my $rrd_result = 0;
	6
1c9fb9df MG	7	if ((@ARGV != 1) && (@ARGV != 2)) {
1c9fb9df MG	8	print STDERR "Syntax: ${0} configfile [uid]\n";
e18c93b3 MG	9	exit(1);
	10	}
	11
1c9fb9df	12	use Net::SNMP;
0e572cdc	13	use IO::Socket::INET;
3679b927	14	use IO::Select;
e5da3876	15	use RRDs;
e26b065f	16	use File::Copy;
e5da3876	17	use Data::Dumper;
e18c93b3	18
1c9fb9df	19	$UPSGRAPH::outdir = "";
3d7df03f	20	$UPSGRAPH::daysCovered = 370;
1c9fb9df	21	$UPSGRAPH::step = 60;
3d7df03f BO	22	$UPSGRAPH::stepsPerHour = (60 * 60) / $UPSGRAPH::step;
	23	$UPSGRAPH::keep = ($UPSGRAPH::daysCovered2460*60)/$UPSGRAPH::step;
	24	$UPSGRAPH::keepHours = ($UPSGRAPH::daysCovered2460*60)/$UPSGRAPH::stepsPerHour/$UPSGRAPH::step;
6c1071ee	25	$UPSGRAPH::hosts = ();
e18c93b3	26
1c9fb9df	27	do $ARGV[0] or die "can't read config: $!";
e18c93b3	28
1c9fb9df	29	my $outdir = $UPSGRAPH::outdir;
1c9fb9df	30	my $step = $UPSGRAPH::step;
3d7df03f	31	my $stepsPerHour = $UPSGRAPH::stepsPerHour;
e5da3876	32	my $keep = $UPSGRAPH::keep;
3d7df03f	33	my $keepHours = $UPSGRAPH::keepHours;
6c1071ee	34	my $hosts = $UPSGRAPH::hosts;
e18c93b3	35
f49c04f7 MG	36	sub rrd_update(@) {
	37	my @args = @_;
	38
	39	if ($use_rrds == 1) {
	40	RRDs::update(@args);
	41	$rrd_result = RRDs::error;
	42	} else {
	43	$rrd_result = system("rrdtool", "update", @args);
	44	}
	45	}
	46
	47	sub rrd_graph(@) {
	48	my @args = @_;
	49	my @rrd_out = ();
	50
	51	if ($use_rrds == 1) {
	52	@rrd_out = RRDs::graph(@args);
	53	$rrd_result = RRDs::error;
	54	} else {
	55	my $rrd_stdout;
	56
	57	open(RRDFD, '-\|', 'rrdtool', 'graph', @args);
	58	while(<RRDFD>) {
	59	chomp;
	60	$rrd_stdout = $_;
	61	}
	62	close(RRDFD);
	63	$rrd_result = $?;
	64	if ($rrd_result == 0) {
	65	push @rrd_out, 0;
	66	push @rrd_out, split(/x/, $rrd_stdout);
	67	}
	68	}
	69
	70	return @rrd_out;
	71	}
	72
e5da3876	73	sub rrdcreate(@) {
21377f43 MG	74	my $newrrd = shift;
21377f43 MG	75	my $field = shift;
6c1071ee	76	my $vars = shift;
e5da3876 MG	77	my $start = shift;
e5da3876 MG	78
21377f43	79	my @cmd = ("${newrrd}", "--step=${step}");
e5da3876 MG	80
	81	if (defined($start)) {
	82	push @cmd, "--start=${start}";
	83	}
	84
21377f43 MG	85	push @cmd, "DS:${field}:GAUGE:600:" .
21377f43 MG	86	$vars->{$field}->{'min'} . ":" .
f447c2a1	87	$vars->{$field}->{'max'};
21377f43	88
e5da3876	89	push @cmd, "RRA:AVERAGE:0.5:1:${keep}";
3d7df03f BO	90	push @cmd, "RRA:MIN:0.4:${stepsPerHour}:${keepHours}";
3d7df03f BO	91	push @cmd, "RRA:MAX:0.4:${stepsPerHour}:${keepHours}";
e5da3876 MG	92
	93	RRDs::create(@cmd);
	94	if (RRDs::error) {
	95	print "Error while creating: " . RRDs::error . "\n";
	96	exit 1;
	97	}
	98	}
	99
6c1071ee MG	100	sub fetch_snmp(@) {
	101	my $address = shift;
	102	my $community = shift;
	103	my $oid = shift;
e5da3876	104
6c1071ee MG	105	(my $session, my $error) = Net::SNMP->session(Hostname => $address,
6c1071ee MG	106	Community => $community);
e18c93b3	107
0e572cdc MG	108	if (!$session) {
0e572cdc MG	109	print STDERR "session error: $error";
e0acc35a	110	return undef;
0e572cdc	111	}
e5da3876	112
6c1071ee	113	$session->translate(0);
e5da3876	114
0e572cdc	115	my $result = $session->get_request($oid);
e5da3876	116
6c1071ee	117	$session->close;
21377f43	118
0e572cdc MG	119	return undef if (!defined($result));
	120
	121	$result->{$oid};
	122	}
	123
	124	sub fetch_tcp(@) {
	125	my $address = shift;
	126	my $port = shift;
	127
	128	my $sock = IO::Socket::INET->new(PeerAddr => $address,
	129	PeerPort => $port,
	130	Proto => 'tcp',
	131	Timeout => 1);
	132
	133	return undef if (!$sock);
	134
3679b927 MG	135	my $select = IO::Select->new($sock);
	136
	137	my $value = undef;
	138
	139	if ($select->can_read(1)) {
	140	chomp($value) if (sysread($sock, $value, 4096) > 0);
	141	}
0e572cdc MG	142
	143	close($sock);
	144
	145	if (!$value) {
	146	return undef;
	147	}
	148
	149	$value=~ s/\s//g;
	150
	151	$value;
6c1071ee	152	}
e5da3876	153
b57167a1 MG	154	sub fetch_tcp_multi(@) {
	155	my $address = shift;
	156	my $port = shift;
	157	my $delimiter = shift;
	158	my %values;
	159
	160	my $sock = IO::Socket::INET->new(PeerAddr => $address,
	161	PeerPort => $port,
	162	Proto => 'tcp',
	163	Timeout => 1);
	164
	165	return undef if (!$sock);
	166
3679b927 MG	167	my $select = IO::Select->new($sock);
	168
	169	while($select->can_read(1)) {
	170	if (sysread($sock, my $buf, 16384) > 0) {
	171	$buf=~s/\r//g;
	172	foreach my $line (split(/\n/, $buf)) {
	173	(my $key, my $value) = split(/${delimiter}/, $line);
	174	$value=~ s/\s//g;
	175	$values{$key} = $value;
	176	}
	177	} else {
	178	last;
	179	}
b57167a1 MG	180	}
	181
	182	close($sock);
	183
	184	%values;
	185	}
	186
6c1071ee MG	187	if ($> == 0) {
	188	if (@ARGV != 2) {
	189	print STDERR "Running as root, please provide UID as 2th argument!\n";
	190	exit(1);
e5da3876 MG	191	}
e5da3876 MG	192
6c1071ee MG	193	print "Running as root, switching to ".$ARGV[1]."\n";
6c1071ee MG	194	$< = $> = $ARGV[1];
21377f43	195	}
e5da3876	196
6c1071ee MG	197	foreach my $host (@$hosts) {
6c1071ee MG	198	my $rrdfile = $host->{'rrdfile'};
21377f43	199
46ead44b MG	200	foreach my $var (keys(%{$host->{'vars'}})) {
	201	$host->{'vars'}->{$var}->{'min'} = 'U' if (!defined($host->{'vars'}->{$var}->{'min'}));
	202	$host->{'vars'}->{$var}->{'max'} = 'U' if (!defined($host->{'vars'}->{$var}->{'max'}));
	203	}
	204
6c1071ee MG	205	if (-e "${rrdfile}") {
6c1071ee MG	206	print "Reading old ${rrdfile} to preserve data...\n";
e5da3876	207
6c1071ee MG	208	my $rrdinfo = RRDs::info("${rrdfile}");
	209	if (RRDs::error) {
	210	print "Error while getting info: " . RRDs::error . "\n";
	211	exit 1;
	212	}
21377f43 MG	213
21377f43 MG	214	(my $start, my $ostep, my $names, my $data) =
6c1071ee	215	RRDs::fetch("${rrdfile}",
21377f43 MG	216	"-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})),
	217	"AVERAGE");
	218
	219	if (RRDs::error) {
	220	print "Error while fetching data: " . RRDs::error . "\n";
	221	exit 1;
	222	}
	223
6c1071ee MG	224	foreach my $field (@$names) {
	225	if (! -e "${rrdfile}.${field}") {
	226	rrdcreate("${rrdfile}.${field}",
	227	"${field}",
	228	$host->{'vars'},
	229	(${start}-${ostep}));
	230	}
	231	}
21377f43 MG	232
	233	my $pos = $start;
	234	foreach my $line (@$data) {
6c1071ee MG	235	foreach my $field (@$names) {
6c1071ee MG	236	my $val = shift (@$line);
21377f43	237	$val = 'U' if (!defined($val));
21377f43	238
6c1071ee MG	239	RRDs::update("${rrdfile}.${field}", "${pos}:${val}");
	240	if (RRDs::error) {
	241	print "Can't insert data: " . RRDs::error . "\n";
	242	exit 1;
	243	}
	244
21377f43	245	}
6c1071ee	246
21377f43 MG	247	$pos += $ostep;
	248
	249	if ((($pos-$start)/$ostep) == $#$data) {
	250	last;
	251	}
	252	}
	253
6c1071ee MG	254	rename("${rrdfile}", "${rrdfile}.old") or die "Can't rename old file: $!\n";
6c1071ee MG	255	}
21377f43	256
6c1071ee MG	257	foreach my $field (@{$host->{'fields'}}) {
	258	if (! -e "${rrdfile}.${field}") {
	259	print "Creating ${rrdfile}.${field}...\n";
	260	rrdcreate("${rrdfile}.${field}",
	261	"${field}",
	262	$host->{'vars'});
	263	}
	264
	265	my $rrdinfo = RRDs::info("${rrdfile}.${field}");
21377f43 MG	266	if (RRDs::error) {
	267	print "Error while getting info: " . RRDs::error . "\n";
	268	exit 1;
	269	}
	270
178e4778 MG	271	if (defined($rrdinfo->{"ds[${field}].min"})) {
	272	if ($rrdinfo->{"ds[${field}].min"} ne $host->{'vars'}->{$field}->{'min'}) {
	273	RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'});
	274	}
	275	} else {
	276	if ($host->{'vars'}->{$field}->{'min'} ne 'U') {
	277	RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'});
	278	}
	279	}
	280
	281	if (RRDs::error) {
	282	print "Error while setting min: " . RRDs::error . "\n";
	283	exit 1;
	284	}
	285
	286	if (defined($rrdinfo->{"ds[${field}].max"})) {
	287	if ($rrdinfo->{"ds[${field}].max"} ne $host->{'vars'}->{$field}->{'max'}) {
178e4778 MG	288	RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'});
	289	}
	290	} else {
	291	if ($host->{'vars'}->{$field}->{'max'} ne 'U') {
	292	RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'});
	293	}
	294	}
	295
	296	if (RRDs::error) {
	297	print "Error while setting max: " . RRDs::error . "\n";
	298	exit 1;
	299	}
	300
3d7df03f BO	301	if ($rrdinfo->{'rra[0].rows'} != $keep \|\|
	302	!defined($rrdinfo->{'rra[1].rows'}) \|\| $rrdinfo->{'rra[1].rows'} != $keepHours) {
	303
6c1071ee MG	304	print "Resizing ${rrdfile}.${field} from " . $rrdinfo->{'rra[0].rows'} .
6c1071ee MG	305	" to ${keep} samples.\n";
e18c93b3	306
6c1071ee MG	307	(my $start, my $ostep, my $names, my $data) =
	308	RRDs::fetch("${rrdfile}.${field}",
	309	"-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})),
	310	"AVERAGE");
6aa53fc5	311
6c1071ee MG	312	if (RRDs::error) {
	313	print "Error while fetching data: " . RRDs::error . "\n";
	314	exit 1;
	315	}
6aa53fc5	316
6c1071ee MG	317	rrdcreate("${rrdfile}.${field}.new",
	318	"${field}",
	319	$host->{'vars'},
	320	(${start}-${ostep}));
6aa53fc5	321
3d7df03f	322	print "Preserving data in file ${rrdfile}.${field} since " . localtime($start) . "\n";
e18c93b3	323
6c1071ee MG	324	my $pos = $start;
	325	foreach my $line (@$data) {
	326	my $vline = "${pos}";
e18c93b3	327
6c1071ee MG	328	foreach my $val (@$line) {
	329	$val = 'U' if (!defined($val));
	330	$vline .= ":${val}";
	331	}
	332	RRDs::update("${rrdfile}.${field}.new", $vline) or die "Can't insert data\n";
e18c93b3	333
6c1071ee MG	334	if (RRDs::error) {
	335	print "Error while updating: " . RRDs::error . "\n";
	336	exit 1;
	337	}
	338	$pos += $ostep;
e18c93b3	339
6c1071ee MG	340	if ((($pos-$start)/$ostep) == $#$data) {
	341	last;
	342	}
	343	}
e18c93b3	344
6c1071ee MG	345	rename("${rrdfile}.${field}", "${rrdfile}.${field}.old") or die "Can't rename old file: $!\n";
6c1071ee MG	346	rename("${rrdfile}.${field}.new", "${rrdfile}.${field}") or die "Can't rename new file: $!\n";
e18c93b3	347
6c1071ee MG	348	$rrdinfo = RRDs::info("${rrdfile}.${field}");
	349	if (RRDs::error) {
	350	print "Error while getting info: " . RRDs::error . "\n";
	351	exit 1;
	352	}
e18c93b3	353
6c1071ee MG	354	if ($rrdinfo->{'rra[0].rows'} != $keep) {
	355	print "Failed!\n";
	356	exit 1;
	357	}
e18c93b3	358	}
e18c93b3	359	}
6c1071ee MG	360	}
	361
	362	my $child = fork();
e18c93b3	363
6c1071ee MG	364	die "fork failed!" if (!defined($child));
	365
	366	exit 0 if ($child != 0);
	367
	368	while(1) {
e18c93b3 MG	369	open(HTML, ">${outdir}/index.html.new");
e18c93b3 MG	370
2c148a8e	371	print HTML '<html><head><meta http-equiv="refresh" content="60"/><meta http-equiv="cache-control" content="no-cache"/><meta http-equiv="pragma" content="no-cache"/><meta http_equiv="expires" content="Sat, 26 Jul 1997 05:00:00 GMT"/><title>Status</title></head>';
e18c93b3 MG	372	print HTML '<body bgcolor="#ffffff">';
e18c93b3 MG	373
6c1071ee	374	foreach my $host (@$hosts) {
2c148a8e MG	375	print HTML "[<a href=\"#".${host}->{'name'}."\">".${host}->{'name'}."</a>] ";
	376	}
	377	print HTML "<br>\n";
	378
	379	foreach my $host (@$hosts) {
	380	print HTML "<br>\n";
	381	print HTML "<a name=\"".${host}->{'name'}."\"></a>\n";
6c1071ee MG	382	my $vars = $host->{'vars'};
	383	my $rrdfile = $host->{'rrdfile'};
	384	my $hostname = $host->{'name'};
b57167a1	385	my %multi_values = ();
6c1071ee MG	386
	387	foreach my $var (@{$host->{'fields'}}) {
	388	delete $vars->{$var}->{'value'};
e5da3876	389
0e572cdc MG	390	my $result;
	391
	392	if ((!defined($vars->{$var}->{'proto'})) \|\|
	393	($vars->{$var}->{'proto'} eq '') \|\|
	394	($vars->{$var}->{'proto'} eq 'snmp')) {
	395	$result = fetch_snmp($host->{'address'}, $host->{'community'}, $vars->{$var}->{'oid'});
	396	} elsif ($vars->{$var}->{'proto'} eq 'tcp') {
	397	$result = fetch_tcp($host->{'address'}, $vars->{$var}->{'port'});
b57167a1 MG	398	} elsif ($vars->{$var}->{'proto'} eq 'tcp_multi') {
	399	if (defined($multi_values{$vars->{$var}->{'multi_id'}})) {
	400	$result = $multi_values{$vars->{$var}->{'multi_id'}}
	401	} else {
	402	my %values = fetch_tcp_multi($host->{'address'}, $vars->{$var}->{'port'}, $vars->{$var}->{'multi_delimiter'});
	403	@multi_values{keys %values} = values %values;
	404	$result = $multi_values{$vars->{$var}->{'multi_id'}};
	405	}
0e572cdc MG	406	}
0e572cdc MG	407
6c1071ee MG	408	next unless (defined $result);
6c1071ee MG	409
0e572cdc	410	$vars->{$var}->{'value'} = $result;
6c1071ee MG	411	if (defined($vars->{$var}->{'factor'})) {
	412	$vars->{$var}->{'value'} *= $vars->{$var}->{'factor'};
	413	}
	414	}
	415
	416	foreach my $var (@{$host->{'fields'}}) {
	417	if (!(defined($vars->{$var}->{'value'}))) {
	418	$vars->{$var}->{'value'} = 'U';
	419	}
f49c04f7	420	rrd_update("${rrdfile}.${var}", "N:" . $vars->{$var}->{'value'});
6c1071ee	421	}
f49c04f7 MG	422	if ($rrd_result) {
f49c04f7 MG	423	print "Error while updating: " . $rrd_result . "\n";
e5da3876 MG	424	}
e5da3876 MG	425
6c1071ee	426	foreach my $var (@{$host->{'fields'}}) {
de10ff59	427	my @graphdef = ('-P', "--lazy", "-t", $hostname." - ".$vars->{$var}->{'name'}, "DEF:${var}=${rrdfile}.${var}:${var}:AVERAGE", "LINE1:${var}#FF0000");
3d7df03f BO	428
	429	push @graphdef, "DEF:${var}-min=${rrdfile}.${var}:${var}:MIN", "LINE1:${var}-min#0000FF";
	430	push @graphdef, "DEF:${var}-max=${rrdfile}.${var}:${var}:MAX", "LINE1:${var}-max#00FF00";
0e74e3d8	431	push @graphdef, "VDEF:cur=${var},LAST";
de10ff59	432	push @graphdef, 'GPRINT:cur:Current\\: <span foreground="#FF0000">%.2lf</span>\\r';
52259377 MG	433
	434	my $mtime;
	435	$mtime=(stat("${outdir}/${hostname}.${var}.png.work"))[9];
	436
6c1071ee	437	(my $averages, my $width, my $height) =
f49c04f7	438	rrd_graph("${outdir}/${hostname}.${var}.png.work",
6c1071ee	439	"-w", "720", @graphdef);
e5da3876	440
0e74e3d8 MG	441	pop @graphdef;
	442	pop @graphdef;
	443
f49c04f7 MG	444	if ($rrd_result) {
f49c04f7 MG	445	print "Error while graphing: " . $rrd_result . "\n";
6c1071ee	446	} else {
52259377	447	my $newmtime=(stat("${outdir}/${hostname}.${var}.png.work"))[9];
f004592a	448	if ((!defined($mtime)) \|\| ($newmtime != $mtime)) {
52259377 MG	449	copy("${outdir}/${hostname}.${var}.png.work", "${outdir}/${hostname}.${var}.png.new");
	450	rename("${outdir}/${hostname}.${var}.png.new", "${outdir}/${hostname}.${var}.png");
	451	}
6c1071ee	452	}
e5da3876	453
2c148a8e	454	print HTML "<a href=\"${hostname}.${var}.html\"><img src=\"${hostname}.${var}.png\" width=\"${width}\" height=\"${height}\" border=\"0\"></a><br>\n";
58c56c83	455
6c1071ee	456	open (HTML2, ">${outdir}/${hostname}.${var}.html.new");
41cfd723	457	print HTML2 '<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta http-equiv="refresh" content="60"/><meta http-equiv="cache-control" content="no-cache"/><meta http-equiv="pragma" content="no-cache"/><meta http_equiv="expires" content="Sat, 26 Jul 1997 05:00:00 GMT"/><title>' . $vars->{$var}->{'name'} . '</title></head>';
6c1071ee	458	print HTML2 '<body bgcolor="#ffffff">';
58c56c83	459
3d7df03f	460	push @graphdef, "VDEF:min=${var}-min,MINIMUM";
6c1071ee	461	push @graphdef, "GPRINT:min:Minimum\\: %.2lf";
58c56c83	462
6c1071ee MG	463	push @graphdef, "VDEF:avg=${var},AVERAGE";
6c1071ee MG	464	push @graphdef, "GPRINT:avg:Average\\: %.2lf";
58c56c83	465
3d7df03f	466	push @graphdef, "VDEF:max=${var}-max,MAXIMUM";
6c1071ee	467	push @graphdef, "GPRINT:max:Maximum\\: %.2lf";
e5da3876	468
6c1071ee MG	469	push @graphdef, "VDEF:cur=${var},LAST";
6c1071ee MG	470	push @graphdef, "GPRINT:cur:Current\\: %.2lf";
e5da3876	471
52259377	472	$mtime=(stat("${outdir}/${hostname}.${var}.long.png.work"))[9];
6c1071ee	473	($averages, $width, $height) =
f49c04f7	474	rrd_graph("${outdir}/${hostname}.${var}.long.png.work",
6c1071ee	475	"-w", "1008", @graphdef);
e5da3876	476
f49c04f7 MG	477	if ($rrd_result) {
f49c04f7 MG	478	print "Error while graphing: " . $rrd_result . "\n";
6c1071ee	479	} else {
52259377	480	my $newmtime=(stat("${outdir}/${hostname}.${var}.long.png.work"))[9];
f004592a	481	if ((!defined($mtime)) \|\| ($newmtime != $mtime)) {
52259377 MG	482	copy("${outdir}/${hostname}.${var}.long.png.work", "${outdir}/${hostname}.${var}.long.png.new");
	483	rename("${outdir}/${hostname}.${var}.long.png.new", "${outdir}/${hostname}.${var}.long.png");
	484	}
6c1071ee	485	}
e5da3876	486
1c46ea61	487	print HTML2 "<img src=\"${hostname}.${var}.long.png\" width=\"${width}\" height=\"${height}\"><br>\n";
6c1071ee	488
52259377	489	$mtime=(stat("${outdir}/${hostname}.${var}.week.png.work"))[9];
6c1071ee	490	($averages, $width, $height) =
f49c04f7	491	rrd_graph("${outdir}/${hostname}.${var}.week.png.work",
6c1071ee MG	492	"-w", "1008", "-e", "now", "-s", "end-1w", @graphdef);
6c1071ee MG	493
f49c04f7 MG	494	if ($rrd_result) {
f49c04f7 MG	495	print "Error while graphing: " . $rrd_result . "\n";
6c1071ee	496	} else {
52259377	497	my $newmtime=(stat("${outdir}/${hostname}.${var}.week.png.work"))[9];
f004592a	498	if ((!defined($mtime)) \|\| ($newmtime != $mtime)) {
52259377 MG	499	copy("${outdir}/${hostname}.${var}.week.png.work", "${outdir}/${hostname}.${var}.week.png.new");
	500	rename("${outdir}/${hostname}.${var}.week.png.new", "${outdir}/${hostname}.${var}.week.png");
	501	}
6c1071ee	502	}
e5da3876	503
1c46ea61	504	print HTML2 "<img src=\"${hostname}.${var}.week.png\" width=\"${width}\" height=\"${height}\"><br>\n";
e5da3876	505
52259377	506	$mtime=(stat("${outdir}/${hostname}.${var}.year.png.work"))[9];
6c1071ee	507	($averages, $width, $height) =
f49c04f7	508	rrd_graph("${outdir}/${hostname}.${var}.year.png.work",
6c1071ee	509	"-w", "1008", "-e", "now", "-s", "end-1y", @graphdef);
e5da3876	510
f49c04f7 MG	511	if ($rrd_result) {
f49c04f7 MG	512	print "Error while graphing: " . $rrd_result . "\n";
6c1071ee	513	} else {
52259377	514	my $newmtime=(stat("${outdir}/${hostname}.${var}.year.png.work"))[9];
f004592a	515	if ((!defined($mtime)) \|\| ($newmtime != $mtime)) {
52259377 MG	516	copy("${outdir}/${hostname}.${var}.year.png.work", "${outdir}/${hostname}.${var}.year.png.new");
	517	rename("${outdir}/${hostname}.${var}.year.png.new", "${outdir}/${hostname}.${var}.year.png");
	518	}
6c1071ee	519	}
e18c93b3	520
1c46ea61	521	print HTML2 "<img src=\"${hostname}.${var}.year.png\" width=\"${width}\" height=\"${height}\"><br>\n";
e18c93b3	522
6c1071ee MG	523	print HTML2 "</body></html>\n";
	524	close(HTML2);
	525	rename("${outdir}/${hostname}.${var}.html.new", "${outdir}/${hostname}.${var}.html");
	526	}
e18c93b3 MG	527	}
	528
	529	print HTML "</body></html>\n";
	530	print HTML "<br>Generated on: " . localtime(time());
863e62dc	531	print HTML ' by <a href="http://git.zerfleddert.de/cgi-bin/gitweb.cgi/upsgraph">upsgraph</a>.';
e18c93b3 MG	532
	533	close(HTML);
	534
	535	rename("${outdir}/index.html.new", "${outdir}/index.html");
	536
	537	sleep(${step}/2);
	538	}