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