git.zerfleddert.de Git - upsgraph/blob - upsgraph.pl

   1 #!/usr/bin/perl -w
   2
   3 #Due to memory leak in Debian squeeze (Bug #545519)
   4 my $use_rrds = 0;
   5 my $rrd_result = 0;
   6
   7 if ((@ARGV != 1) && (@ARGV != 2)) {
   8         print STDERR "Syntax: ${0} configfile [uid]\n";
   9         exit(1);
  10 }
  11
  12 use Net::SNMP;
  13 use IO::Socket::INET;
  14 use IO::Select;
  15 use RRDs;
  16 use File::Copy;
  17 use Data::Dumper;
  18 use LWP::UserAgent;
  19 use JSON;
  20
  21 $UPSGRAPH::outdir = "";
  22 $UPSGRAPH::daysCovered = 370;
  23 $UPSGRAPH::step = 60;
  24 $UPSGRAPH::stepsPerHour = (60 * 60) / $UPSGRAPH::step;
  25 $UPSGRAPH::keep = ($UPSGRAPH::daysCovered*24*60*60)/$UPSGRAPH::step;
  26 $UPSGRAPH::keepHours = ($UPSGRAPH::daysCovered*24*60*60)/$UPSGRAPH::stepsPerHour/$UPSGRAPH::step;
  27 $UPSGRAPH::hosts = ();
  28 $UPSGRAPH::regenerateOnStart = 1; #when set, regenerate graphs on script startup
  29
  30 do $ARGV[0] or die "can't read config: $!";
  31
  32 my $outdir = $UPSGRAPH::outdir;
  33 my $step = $UPSGRAPH::step;
  34 my $stepsPerHour = $UPSGRAPH::stepsPerHour;
  35 my $keep = $UPSGRAPH::keep;
  36 my $keepHours = $UPSGRAPH::keepHours;
  37 my $hosts = $UPSGRAPH::hosts;
  38
  39 sub rrd_update(@) {
  40         my @args = @_;
  41
  42         if ($use_rrds == 1) {
  43                 RRDs::update(@args);
  44                 $rrd_result = RRDs::error;
  45         } else {
  46                 $rrd_result = system("rrdtool", "update", @args);
  47         }
  48 }
  49
  50 sub rrd_graph(@) {
  51         my @args = @_;
  52         my @rrd_out = ();
  53
  54         if ($use_rrds == 1) {
  55                 @rrd_out = RRDs::graph(@args);
  56                 $rrd_result = RRDs::error;
  57         } else {
  58                 my $rrd_stdout;
  59
  60                 open(RRDFD, '-|', 'rrdtool', 'graph', @args);
  61                 while(<RRDFD>) {
  62                         chomp;
  63                         $rrd_stdout = $_;
  64                 }
  65                 close(RRDFD);
  66                 $rrd_result = $?;
  67                 if ($rrd_result == 0) {
  68                         push @rrd_out, 0;
  69                         push @rrd_out, split(/x/, $rrd_stdout);
  70                 }
  71         }
  72
  73         return @rrd_out;
  74 }
  75
  76 sub rrdcreate(@) {
  77         my $newrrd = shift;
  78         my $field = shift;
  79         my $vars = shift;
  80         my $start = shift;
  81
  82         my @cmd = ("${newrrd}", "--step=${step}");
  83
  84         if (defined($start)) {
  85                 push @cmd, "--start=${start}";
  86         }
  87
  88         push @cmd, "DS:${field}:GAUGE:600:" .
  89                 $vars->{$field}->{'min'} . ":" .
  90                 $vars->{$field}->{'max'};
  91
  92         push @cmd, "RRA:AVERAGE:0.5:1:${keep}";
  93         push @cmd, "RRA:MIN:0.4:${stepsPerHour}:${keepHours}";
  94         push @cmd, "RRA:MAX:0.4:${stepsPerHour}:${keepHours}";
  95         push @cmd, "RRA:AVERAGE:0.5:${stepsPerHour}:${keepHours}";
  96
  97         RRDs::create(@cmd);
  98         if (RRDs::error) {
  99                 print "Error while creating: " . RRDs::error . "\n";
 100                 exit 1;
 101         }
 102 }
 103
 104 sub fetch_snmp(@) {
 105         my $address = shift;
 106         my $community = shift;
 107         my $oid = shift;
 108
 109         (my $session, my $error) = Net::SNMP->session(Hostname => $address,
 110                         Community => $community);
 111
 112         if (!$session) {
 113                 print STDERR "session error: $error";
 114                 return undef;
 115         }
 116
 117         $session->translate(0);
 118
 119         my $result = $session->get_request($oid);
 120
 121         $session->close;
 122
 123         return undef if (!defined($result));
 124
 125         $result->{$oid};
 126 }
 127
 128 sub fetch_tcp(@) {
 129         my $address = shift;
 130         my $port = shift;
 131
 132         my $sock = IO::Socket::INET->new(PeerAddr => $address,
 133                         PeerPort => $port,
 134                         Proto => 'tcp',
 135                         Timeout => 1);
 136
 137         return undef if (!$sock);
 138
 139         my $select = IO::Select->new($sock);
 140
 141         my $value = undef;
 142
 143         if ($select->can_read(1)) {
 144                 chomp($value) if (sysread($sock, $value, 4096) > 0);
 145         }
 146
 147         close($sock);
 148
 149         if (!$value) {
 150                 return undef;
 151         }
 152
 153         $value=~ s/\s//g;
 154
 155         $value;
 156 }
 157
 158 sub fetch_tcp_multi(@) {
 159         my $address = shift;
 160         my $port = shift;
 161         my $delimiter = shift;
 162         my %values;
 163
 164         my $sock = IO::Socket::INET->new(PeerAddr => $address,
 165                         PeerPort => $port,
 166                         Proto => 'tcp',
 167                         Timeout => 1);
 168
 169         return undef if (!$sock);
 170
 171         my $select = IO::Select->new($sock);
 172
 173         while($select->can_read(1)) {
 174                 if (sysread($sock, my $buf, 16384) > 0) {
 175                         $buf=~s/\r//g;
 176                         foreach my $line (split(/\n/, $buf)) {
 177                                 (my $key, my $value) = split(/${delimiter}/, $line);
 178                                 $value=~ s/\s//g;
 179                                 $values{$key} = $value;
 180                         }
 181                 } else {
 182                         last;
 183                 }
 184         }
 185
 186         close($sock);
 187
 188         %values;
 189 }
 190
 191 sub fetch_iotcore(@) {
 192         my $url = shift;
 193
 194         my $ua = LWP::UserAgent->new;
 195         $ua->timeout(1);
 196
 197         my $resp = $ua->get($url);
 198         return undef if (!$resp->is_success);
 199
 200         my $pdin = decode_json($resp->decoded_content);
 201         return undef if (!defined($pdin));
 202
 203         my $value = hex($pdin->{'data'}->{'value'});
 204
 205         $value;
 206 }
 207
 208 sub dayGraphFunc {
 209         my $dataSrc = shift;
 210         my $mode = shift;
 211         my $color = shift;
 212         my $label = shift;
 213         my $dataPoints = shift;
 214         my @args = ();
 215         push @args, "CDEF:prev${mode}1=PREV(${dataSrc})";
 216         for (my $i = 1; $i < $dataPoints - 1; ++$i) {
 217                 my $prev = $i;
 218                 my $next = $i+1;
 219                 push @args, "CDEF:prev${mode}${next}=PREV(prev${mode}${prev})";
 220         }
 221         my $dayCons = '';
 222         my $consFunc = '';
 223         if ($mode ne 'AVG') {
 224                 for (my $i = 1; $i < $dataPoints; ++$i) {
 225                         $dayCons .= "prev${mode}${i},";
 226                         $consFunc .= ",${mode}";
 227                 }
 228         } else {
 229                 for (my $i = 1; $i < $dataPoints; ++$i) {
 230                         $dayCons .= "prev${mode}${i},";
 231                 }
 232                 $consFunc = ",${dataPoints},${mode}";
 233         }
 234         push @args, "CDEF:day${mode}=${dayCons}${dataSrc}${consFunc}";
 235         push @args, "CDEF:fillCalDay${mode}0=COUNT,${dataPoints},%,0,EQ,day${mode},UNKN,IF";
 236         for (my $i = 1; $i < $dataPoints; ++$i) {
 237                 my $prev = $i-1;
 238                 my $next = $i;
 239                 push @args, "CDEF:fillCalDay${mode}${next}=PREV(fillCalDay${mode}${prev})";
 240         }
 241         my $fillPoint = '';
 242         my $if = '';
 243         for (my $i = 0; $i < $dataPoints; ++$i) {
 244                 $fillPoint .= "COUNT,${dataPoints},%,${i},EQ,fillCalDay${mode}${i},";
 245                 $if .= ",IF";
 246         }
 247         push @args, "CDEF:${mode}Curve=${fillPoint}UNKN${if}";
 248         my $forwardShift = (24*60*60) * ($dataPoints - 1) / $dataPoints;
 249         push @args, "SHIFT:${mode}Curve:-${forwardShift}";
 250         push @args, "LINE1:${mode}Curve#${color}:${label}";
 251         return \@args;
 252 }
 253
 254 sub cfgToGraphDef {
 255         my $cfg = shift;
 256         my $varname = shift;
 257         my $dpPerDay= shift;
 258         my @graphDef = ();
 259         foreach my $subGraph (@$cfg) {
 260                 if ($subGraph eq 'avg') {
 261                         push @graphDef, "LINE1:${varname}-avg#FF0000";
 262                 } elsif ($subGraph eq 'day-min') {
 263                         push @graphDef, @{dayGraphFunc("${varname}-min", 'MIN', '0000ff', 'Day Minimum Temperature', $dpPerDay)};
 264                 } elsif ($subGraph eq 'day-max') {
 265                         push @graphDef, @{dayGraphFunc("${varname}-max", 'MAX', '00ff00', 'Day Maximum Temperature', $dpPerDay)};
 266                 } elsif ($subGraph eq 'day-avg') {
 267                         push @graphDef, @{dayGraphFunc("${varname}-houravg", 'AVG', 'ff0000', 'Day Average Temperature', $dpPerDay)};
 268                 }
 269         }
 270         return \@graphDef;
 271 }
 272
 273 if ($> == 0) {
 274         if (@ARGV != 2) {
 275                 print STDERR "Running as root, please provide UID as 2th argument!\n";
 276                 exit(1);
 277         }
 278
 279         print "Running as root, switching to ".$ARGV[1]."\n";
 280         $< = $> = $ARGV[1];
 281 }
 282
 283 foreach my $host (@$hosts) {
 284         my $rrdfile = $host->{'rrdfile'};
 285
 286         foreach my $var (keys(%{$host->{'vars'}})) {
 287                 $host->{'vars'}->{$var}->{'min'} = 'U' if (!defined($host->{'vars'}->{$var}->{'min'}));
 288                 $host->{'vars'}->{$var}->{'max'} = 'U' if (!defined($host->{'vars'}->{$var}->{'max'}));
 289         }
 290
 291         if (-e "${rrdfile}") {
 292                 print "Reading old ${rrdfile} to preserve data...\n";
 293
 294                 my $rrdinfo = RRDs::info("${rrdfile}");
 295                 if (RRDs::error) {
 296                         print "Error while getting info: " . RRDs::error . "\n";
 297                         exit 1;
 298                 }
 299
 300                 (my $start, my $ostep, my $names, my $data) =
 301                         RRDs::fetch("${rrdfile}",
 302                                         "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})),
 303                                         "AVERAGE");
 304
 305                 if (RRDs::error) {
 306                         print "Error while fetching data: " . RRDs::error . "\n";
 307                         exit 1;
 308                 }
 309
 310                 foreach my $field (@$names) {
 311                         if (! -e "${rrdfile}.${field}") {
 312                                 rrdcreate("${rrdfile}.${field}",
 313                                         "${field}",
 314                                         $host->{'vars'},
 315                                         (${start}-${ostep}));
 316                         }
 317                 }
 318
 319                 my $pos = $start;
 320                 foreach my $line (@$data) {
 321                         foreach my $field (@$names) {
 322                                 my $val = shift (@$line);
 323                                 $val = 'U' if (!defined($val));
 324
 325                                 RRDs::update("${rrdfile}.${field}", "${pos}:${val}");
 326                                 if (RRDs::error) {
 327                                         print "Can't insert data: " . RRDs::error . "\n";
 328                                         exit 1;
 329                                 }
 330
 331                         }
 332
 333                         $pos += $ostep;
 334
 335                         if ((($pos-$start)/$ostep) == $#$data) {
 336                                 last;
 337                         }
 338                 }
 339
 340                 rename("${rrdfile}", "${rrdfile}.old") or die "Can't rename old file: $!\n";
 341         }
 342
 343         foreach my $field (@{$host->{'fields'}}) {
 344                 if (! -e "${rrdfile}.${field}") {
 345                         print "Creating ${rrdfile}.${field}...\n";
 346                         rrdcreate("${rrdfile}.${field}",
 347                                 "${field}",
 348                                 $host->{'vars'});
 349                 }
 350
 351                 my $rrdinfo = RRDs::info("${rrdfile}.${field}");
 352                 if (RRDs::error) {
 353                         print "Error while getting info: " . RRDs::error . "\n";
 354                         exit 1;
 355                 }
 356
 357                 my $limitsChanged = 0;
 358                 if (defined($rrdinfo->{"ds[${field}].min"})) {
 359                         if ($rrdinfo->{"ds[${field}].min"} ne $host->{'vars'}->{$field}->{'min'}) {
 360                                 $limitsChanged = 1;
 361                                 RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'});
 362                         }
 363                 } else {
 364                         if ($host->{'vars'}->{$field}->{'min'} ne 'U') {
 365                                 $limitsChanged = 1;
 366                                 RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'});
 367                         }
 368                 }
 369
 370                 if (RRDs::error) {
 371                         print "Error while setting min: " . RRDs::error . "\n";
 372                         exit 1;
 373                 }
 374
 375                 if (defined($rrdinfo->{"ds[${field}].max"})) {
 376                         if ($rrdinfo->{"ds[${field}].max"} ne $host->{'vars'}->{$field}->{'max'}) {
 377                                 $limitsChanged = 1;
 378                                 RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'});
 379                         }
 380                 } else {
 381                         if ($host->{'vars'}->{$field}->{'max'} ne 'U') {
 382                                 $limitsChanged = 1;
 383                                 RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'});
 384                         }
 385                 }
 386
 387                 if (RRDs::error) {
 388                         print "Error while setting max: " . RRDs::error . "\n";
 389                         exit 1;
 390                 }
 391
 392                 if ($rrdinfo->{'rra[0].rows'} != $keep ||
 393                         !defined($rrdinfo->{'rra[3].rows'}) || $rrdinfo->{'rra[3].rows'} != $keepHours ||
 394                         $limitsChanged == 1) {
 395
 396                         print "Resizing ${rrdfile}.${field} from " . $rrdinfo->{'rra[0].rows'} .
 397                                 " to ${keep} samples.\n";
 398
 399                         (my $start, my $ostep, my $names, my $data) =
 400                                 RRDs::fetch("${rrdfile}.${field}",
 401                                                 "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})),
 402                                                 "AVERAGE");
 403
 404                         if (RRDs::error) {
 405                                 print "Error while fetching data: " . RRDs::error . "\n";
 406                                 exit 1;
 407                         }
 408
 409                         rrdcreate("${rrdfile}.${field}.new",
 410                                 "${field}",
 411                                 $host->{'vars'},
 412                                 (${start}-${ostep}));
 413
 414                         print "Preserving data in file ${rrdfile}.${field} since " . localtime($start) . "\n";
 415
 416                         my $pos = $start;
 417                         foreach my $line (@$data) {
 418                                 my $vline = "${pos}";
 419
 420                                 foreach my $val (@$line) {
 421                                         $val = 'U' if (!defined($val));
 422                                         $vline .= ":${val}";
 423                                 }
 424                                 RRDs::update("${rrdfile}.${field}.new", $vline) or die "Can't insert data\n";
 425
 426                                 if (RRDs::error) {
 427                                         print "Error while updating: " . RRDs::error . "\n";
 428                                         exit 1;
 429                                 }
 430                                 $pos += $ostep;
 431
 432                                 if ((($pos-$start)/$ostep) == $#$data) {
 433                                         last;
 434                                 }
 435                         }
 436
 437                         rename("${rrdfile}.${field}", "${rrdfile}.${field}.old") or die "Can't rename old file: $!\n";
 438                         rename("${rrdfile}.${field}.new", "${rrdfile}.${field}") or die "Can't rename new file: $!\n";
 439
 440                         $rrdinfo = RRDs::info("${rrdfile}.${field}");
 441                         if (RRDs::error) {
 442                                 print "Error while getting info: " . RRDs::error . "\n";
 443                                 exit 1;
 444                         }
 445
 446                         if ($rrdinfo->{'rra[0].rows'} != $keep) {
 447                                 print "Failed!\n";
 448                                 exit 1;
 449                         }
 450                 }
 451         }
 452 }
 453
 454 my $child = fork();
 455
 456 die "fork failed!" if (!defined($child));
 457
 458 exit 0 if ($child != 0);
 459
 460 my $first = $UPSGRAPH::regenerateOnStart;
 461 while(1) {
 462         open(HTML, ">${outdir}/index.html.new");
 463
 464         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>';
 465         print HTML '<body bgcolor="#ffffff">';
 466
 467         foreach my $host (@$hosts) {
 468                 print HTML "[<a href=\"#".${host}->{'name'}."\">".${host}->{'name'}."</a>]&nbsp;";
 469         }
 470         print HTML "<br>\n";
 471
 472         foreach my $host (@$hosts) {
 473                 print HTML "<br>\n";
 474                 print HTML "<a name=\"".${host}->{'name'}."\"></a>\n";
 475                 my $vars = $host->{'vars'};
 476                 my $rrdfile = $host->{'rrdfile'};
 477                 my $hostname = $host->{'name'};
 478                 my %multi_values = ();
 479
 480                 foreach my $var (@{$host->{'fields'}}) {
 481                         delete $vars->{$var}->{'value'};
 482
 483                         my $result;
 484
 485                         if ((!defined($vars->{$var}->{'proto'})) ||
 486                             ($vars->{$var}->{'proto'} eq '') ||
 487                             ($vars->{$var}->{'proto'} eq 'snmp')) {
 488                                 $result = fetch_snmp($host->{'address'}, $host->{'community'}, $vars->{$var}->{'oid'});
 489                         } elsif ($vars->{$var}->{'proto'} eq 'tcp') {
 490                                 $result = fetch_tcp($host->{'address'}, $vars->{$var}->{'port'});
 491                         } elsif ($vars->{$var}->{'proto'} eq 'tcp_multi') {
 492                                 if (defined($multi_values{$vars->{$var}->{'multi_id'}})) {
 493                                         $result = $multi_values{$vars->{$var}->{'multi_id'}}
 494                                 } else {
 495                                         my %values = fetch_tcp_multi($host->{'address'}, $vars->{$var}->{'port'}, $vars->{$var}->{'multi_delimiter'});
 496                                         @multi_values{keys %values} = values %values;
 497                                         $result = $multi_values{$vars->{$var}->{'multi_id'}};
 498                                 }
 499                         } elsif ($vars->{$var}->{'proto'} eq 'iotcore') {
 500                                 $result = fetch_iotcore($vars->{$var}->{'url'});
 501                         }
 502
 503                         next unless (defined $result);
 504
 505                         $vars->{$var}->{'value'} = $result;
 506                         if (defined($vars->{$var}->{'factor'})) {
 507                                 $vars->{$var}->{'value'} *= $vars->{$var}->{'factor'};
 508                         }
 509                 }
 510
 511                 foreach my $var (@{$host->{'fields'}}) {
 512                         if (!(defined($vars->{$var}->{'value'}))) {
 513                                 $vars->{$var}->{'value'} = 'U';
 514                         }
 515                         rrd_update("${rrdfile}.${var}", "N:" . $vars->{$var}->{'value'});
 516                 }
 517                 if ($rrd_result) {
 518                         print "Error while updating: " . $rrd_result . "\n";
 519                 }
 520
 521                 foreach my $var (@{$host->{'fields'}}) {
 522                         my $graphWidth = 365 * 3;
 523                         my $graphConfig;
 524                         if (defined $vars->{$var}->{'graph'}) {
 525                                 $graphConfig = $vars->{$var}->{'graph'};
 526                                 foreach my $subGraph (qw(day week year)) {
 527                                         if (!defined($graphConfig->{$subGraph})) {
 528                                                 $graphConfig->{$subGraph} = [ 'avg'];
 529                                         }
 530                                 }
 531                         } else {
 532                                 $graphConfig = {
 533                                         'day' =>  [ 'avg' ],
 534                                         'week' => [ 'avg' ],
 535                                         'year' => [ 'avg' ],
 536                                 };
 537                         }
 538
 539                         my @graphdef = ('-P', "-A", "-t", $hostname." - ".$vars->{$var}->{'name'});
 540                         push @graphdef, "--lazy" if !$first;
 541
 542                         push @graphdef, "DEF:${var}-avg=${rrdfile}.${var}:${var}:AVERAGE";
 543                         push @graphdef, "DEF:${var}-min=${rrdfile}.${var}:${var}:MIN";
 544                         push @graphdef, "DEF:${var}-max=${rrdfile}.${var}:${var}:MAX";
 545                         push @graphdef, "DEF:${var}-houravg=${rrdfile}.${var}:${var}:AVERAGE:step=3600";
 546                         push @graphdef, "LINE1:${var}-avg#FF0000";
 547                         push @graphdef, "VDEF:cur=${var}-avg,LAST";
 548                         push @graphdef, 'GPRINT:cur:Current\\: <span foreground="#FF0000">%.2lf</span>\\r';
 549
 550                         my $mtime;
 551                         $mtime=(stat("${outdir}/${hostname}.${var}.png.work"))[9];
 552
 553                         (my $averages, my $width, my $height) =
 554                                 rrd_graph("${outdir}/${hostname}.${var}.png.work",
 555                                                 "-w", "720", @graphdef);
 556
 557                         pop @graphdef;
 558                         pop @graphdef;
 559                         pop @graphdef;
 560
 561                         if ($rrd_result) {
 562                                 print "Error while graphing: " . $rrd_result . "\n";
 563                         } else {
 564                                 my $newmtime=(stat("${outdir}/${hostname}.${var}.png.work"))[9];
 565                                 if ((!defined($mtime)) || ($newmtime != $mtime)) {
 566                                         copy("${outdir}/${hostname}.${var}.png.work", "${outdir}/${hostname}.${var}.png.new");
 567                                         rename("${outdir}/${hostname}.${var}.png.new", "${outdir}/${hostname}.${var}.png");
 568                                 }
 569                         }
 570
 571                         print HTML "<a href=\"${hostname}.${var}.html\"><img src=\"${hostname}.${var}.png\" width=\"${width}\" height=\"${height}\" border=\"0\"></a><br>\n";
 572
 573                         open (HTML2, ">${outdir}/${hostname}.${var}.html.new");
 574                         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>';
 575                         print HTML2 '<body bgcolor="#ffffff">';
 576
 577                         push @graphdef, "VDEF:min=${var}-min,MINIMUM";
 578                         push @graphdef, "GPRINT:min:Minimum\\: %.2lf";
 579
 580                         push @graphdef, "VDEF:avg=${var}-avg,AVERAGE";
 581                         push @graphdef, "GPRINT:avg:Average\\: %.2lf";
 582
 583                         push @graphdef, "VDEF:max=${var}-max,MAXIMUM";
 584                         push @graphdef, "GPRINT:max:Maximum\\: %.2lf";
 585
 586                         push @graphdef, "VDEF:cur=${var}-avg,LAST";
 587                         push @graphdef, "GPRINT:cur:Current\\: %.2lf";
 588
 589                         my @dayGraphDef = @graphdef;
 590                         push @dayGraphDef, @{cfgToGraphDef($graphConfig->{'day'}, ${var}, 24)};
 591
 592                         $mtime=(stat("${outdir}/${hostname}.${var}.long.png.work"))[9];
 593                         ($averages, $width, $height) =
 594                                 rrd_graph("${outdir}/${hostname}.${var}.long.png.work",
 595                                                 "-w", $graphWidth, @dayGraphDef);
 596
 597                         if ($rrd_result) {
 598                                 print "Error while graphing: " . $rrd_result . "\n";
 599                         } else {
 600                                 my $newmtime=(stat("${outdir}/${hostname}.${var}.long.png.work"))[9];
 601                                 if ((!defined($mtime)) || ($newmtime != $mtime)) {
 602                                         copy("${outdir}/${hostname}.${var}.long.png.work", "${outdir}/${hostname}.${var}.long.png.new");
 603                                         rename("${outdir}/${hostname}.${var}.long.png.new", "${outdir}/${hostname}.${var}.long.png");
 604                                 }
 605                         }
 606
 607                         print HTML2 "<img src=\"${hostname}.${var}.long.png\" width=\"${width}\" height=\"${height}\"><br>\n";
 608
 609                         $mtime=(stat("${outdir}/${hostname}.${var}.week.png.work"))[9];
 610
 611                         my @weekGraphDef = @graphdef;
 612                         push @weekGraphDef, @{cfgToGraphDef($graphConfig->{'week'}, ${var}, 24)};
 613
 614                         ($averages, $width, $height) =
 615                                 rrd_graph("${outdir}/${hostname}.${var}.week.png.work",
 616                                                 "-w", "$graphWidth", "-e", "now", "-s", "00:00-8d", @weekGraphDef);
 617
 618                         if ($rrd_result) {
 619                                 print "Error while graphing: " . $rrd_result . "\n";
 620                         } else {
 621                                 my $newmtime=(stat("${outdir}/${hostname}.${var}.week.png.work"))[9];
 622                                 if ((!defined($mtime)) || ($newmtime != $mtime)) {
 623                                         copy("${outdir}/${hostname}.${var}.week.png.work", "${outdir}/${hostname}.${var}.week.png.new");
 624                                         rename("${outdir}/${hostname}.${var}.week.png.new", "${outdir}/${hostname}.${var}.week.png");
 625                                 }
 626                         }
 627
 628                         print HTML2 "<img src=\"${hostname}.${var}.week.png\" width=\"${width}\" height=\"${height}\"><br>\n";
 629
 630                         $mtime=(stat("${outdir}/${hostname}.${var}.year.png.work"))[9];
 631
 632                         my @yearGraphDef = @graphdef;
 633                         push @yearGraphDef, @{cfgToGraphDef($graphConfig->{'year'}, ${var}, 3)};
 634
 635                         ($averages, $width, $height) =
 636                                 rrd_graph("${outdir}/${hostname}.${var}.year.png.work",
 637                                                 "-w", "$graphWidth", "-e", "00:00", "-s", "end-365d", @yearGraphDef);
 638
 639                         if ($rrd_result) {
 640                                 print "Error while graphing: " . $rrd_result . "\n";
 641                         } else {
 642                                 my $newmtime=(stat("${outdir}/${hostname}.${var}.year.png.work"))[9];
 643                                 if ((!defined($mtime)) || ($newmtime != $mtime)) {
 644                                         copy("${outdir}/${hostname}.${var}.year.png.work", "${outdir}/${hostname}.${var}.year.png.new");
 645                                         rename("${outdir}/${hostname}.${var}.year.png.new", "${outdir}/${hostname}.${var}.year.png");
 646                                 }
 647                         }
 648
 649                         print HTML2 "<img src=\"${hostname}.${var}.year.png\" width=\"${width}\" height=\"${height}\"><br>\n";
 650
 651                         print HTML2 "</body></html>\n";
 652                         close(HTML2);
 653                         rename("${outdir}/${hostname}.${var}.html.new", "${outdir}/${hostname}.${var}.html");
 654                 }
 655         }
 656
 657         print HTML "</body></html>\n";
 658         print HTML "<br>Generated on: " . localtime(time());
 659         print HTML ' by <a href="http://git.zerfleddert.de/cgi-bin/gitweb.cgi/upsgraph">upsgraph</a>.';
 660
 661         close(HTML);
 662
 663         rename("${outdir}/index.html.new", "${outdir}/index.html");
 664
 665         sleep(${step}/2);
 666         $first = 0;
 667 }