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#!/usr/bin/perl
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#
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# Flexible MRTG index page
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#
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# Based on original work done by mick@lowdown.com, mostly rewritten
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# by Hamish@zot.org
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#
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# (c) 1997, Mick Ghazey mick@lowdown.com
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# Thanks to Dave Rand, Peter W. Osel and Tobias Oetiker.
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#
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# Requires the CGI package (in mandriva this is perl-CGI)
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our $VERSION=3;
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use strict;
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use warnings;
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use CGI ':all';
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use CGI::Carp qw(fatalsToBrowser);
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use Sys::Hostname;
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my @config_files = (
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'/etc/mrtg.cfg',
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'/usr/share/WWW/mrtg/mrtg.cfg',
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);
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# FIXME - globals
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my $gifdone = 0; # Scan for newest graph and save info for later
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my $warnings;
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sub init_tests(@) {
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my (@config_files) = @_;
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my $xsize_default = 500;
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my $ysize_default = 135;
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my $testmax=0;
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my @list;
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my %tests;
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while(@config_files > 0){
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my $cfg;
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if (!open(In, $cfg = shift @config_files) ) {
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$warnings .= "Warning: Could not open $cfg file\n";
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next;
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}
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while(<In>){
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#TODO - parse WorkDir: directives
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#TODO - instantiate new tests from the "_" defaults
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if ( $_ =~ /^([^#[][^[]+)\[(.*)\]:\s*(.+)$/ ) {
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my $testnr;
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my $var=lc $1;
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my $testname=lc $2;
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my $val=$3;
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my $this_ysize;
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my $this_xsize;
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my $this_title;
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if ( $var eq 'ysize' ) {
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$this_ysize = $val +35;
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} elsif ( $var eq 'xsize' ) {
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$this_xsize = $val +100;
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} elsif ( $var eq 'title' ) {
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$this_title = $val;
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}
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# Skip any default initializers
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if ($testname eq '_') {
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# FIXME - quick-hack
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if($this_xsize) {
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$xsize_default = $this_xsize;
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}
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next;
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}
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if ($testname eq '^') {
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next;
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}
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if (! exists $tests{$testname}) {
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# initialize
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$list[$testmax]->{xsize} = $xsize_default;
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$list[$testmax]->{ysize} = $ysize_default;
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$tests{$testname}=$testmax;
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$list[$testmax]->{name} = $testname;
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$testnr = $testmax;
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# TODO - replace testmax with (scalar @list)
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$testmax++;
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} else {
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$testnr=$tests{$testname};
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}
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$list[$testnr]->{ysize} = $this_ysize if $this_ysize;
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$list[$testnr]->{xsize} = $this_xsize if $this_xsize;
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$list[$testnr]->{title} = $this_title if $this_title;
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}
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}
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close In;
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}
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# check and update details for all known tests;
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for my $i (@list) {
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my $testname = $i->{name};
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if (!exists($i->{title})) {
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$i->{title}='UNTITLED';
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}
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# Default is GIF, unless a PNG file exists
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$i->{imagetype} = 'gif';
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if ( -e "$testname-day.png" ) {
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$i->{imagetype} = "png";
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}
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# TODO - change the filename based on the displayed period
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my $filename = $testname . "-day." . $i->{imagetype};
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my ($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size,
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$atime,$mtime,$ctime,$blksize,$blocks)
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= stat($filename);
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if (!defined $mtime) {
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# if we cannot stat the file, skip it
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next;
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}
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$i->{mtime} = $mtime;
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# find the newest file
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if ($mtime > $gifdone) {
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$gifdone = $mtime;
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}
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}
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return @list;
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}
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sub init_lists(@) {
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my (@tests) = @_;
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my $l;
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my %hostlist;
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my %hosttypelist;
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my %hosttypecount;
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@{$l->{ALL}->{ALL}}=@tests;
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for my $i (0..$#tests) {
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my $testname = $tests[$i]->{name};
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# Do not classify any test with no separators in it
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if ($testname !~ /,/) {
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push @{$l->{OTHER}->{OTHER}}, $tests[$i];
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next;
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}
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my ($group,$host,$test) = split ',', $testname;
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if (defined $group) {
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push @{$l->{GROUP}->{$group}}, $tests[$i];
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}
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if (defined $host) {
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push @{$l->{HOST}->{$host}}, $tests[$i];
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}
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if (defined $test) {
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push @{$l->{TEST}->{$test}}, $tests[$i];
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}
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# TODO - this needs to have a better way...
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# hosttype is the non digit hostname prefix - thus
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# "proxy-1" and "proxy-2" would both end up in the
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# "proxy-" hosttype
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if ($host =~ m/^(.*[^0-9])(\d+)$/) {
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my $hosttype = $1.'*';
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# count each host only once
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if (!defined $hostlist{$host}) {
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$hostlist{$host}=1;
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$hosttypecount{$hosttype}++;
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}
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push @{$hosttypelist{$hosttype}}, $tests[$i];
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}
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}
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for my $i (keys %hosttypelist) {
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if ($hosttypecount{$i} >1) {
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push @{$l->{TYPE}->{$i}}, @{$hosttypelist{$i}};
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}
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}
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return $l;
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}
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sub print_menu_table($$) {
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my ($lists,$style) = @_;
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my $target;
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if ($style eq 'wide') {
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$target="_self";
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} else {
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$target="list";
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}
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print "\n<table border=2 cellpadding=2 cellspacing=0 style=\"margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse; font-size: 95%;\">\n";
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if ($style eq 'wide') {
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print "<tr>\n";
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# print headings
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for my $i (sort keys %{$lists}) {
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print "<th>$i</th>\n";
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}
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print "</tr>";
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}
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if ($style eq 'wide') {
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print "<tr>\n";
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}
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# print contents
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for my $i (sort keys %{$lists}) {
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if ($style eq 'high') {
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print "<tr><th>$i</tr>\n";
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print "<tr>";
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}
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print " <td valign=top>\n";
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for my $j (sort keys %{$lists->{$i}}) {
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print " ".a({-href=>"?page=list&list=$i,$j",-target=>$target},"$j")."<br>\n";
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}
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print " </td>\n";
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if ($style eq 'high') {
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print "</tr>\n";
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}
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}
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if ($style eq 'wide') {
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print "</tr>";
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}
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print "</table>\n";
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}
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sub print_list($$$) {
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my ($lists,$graph,$list) = @_;
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if (!defined $list) {
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return undef;
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}
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if (!defined $lists) {
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return undef;
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}
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my @wantlist = split /,/,$list;
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my @list = @{$lists->{$wantlist[0]}->{$wantlist[1]}};
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for my $router_num (0..$#list){
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my $router = $list[$router_num];
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# FIXME - what if mtime is undef?
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my $time = localtime $router->{mtime}; # $st_mtime saved in above loop
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($time) = $time =~ /(\d+:\d+:\d+)/; # Just the time
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print "$time <b>$router->{title}</b><br/>";
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my ($ysize, $xsize);
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$ysize = $router->{ysize};
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$xsize = $router->{xsize};
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print a({-href=>$router->{name}.".html",-target=>"list"},
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img{
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-src=>$router->{name}."-$graph.".$router->{imagetype},
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-height=>"$ysize",
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-width=>"$xsize"
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}
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);
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print hr,"\n";
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}
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return 1;
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}
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sub print_graph_chooser($$) {
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my ($this_graph,$selfurl) = @_;
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$selfurl .= 'page=list&';
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if ($this_graph eq 'day') {
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print 'Daily';
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} else {
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print a({-href=>$selfurl.'graph=day&',-target=>'_self'}, 'Daily');
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}
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print ' ';
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if ($this_graph eq 'week') {
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print 'Weekly';
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} else {
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print a({-href=>$selfurl.'graph=week&',-target=>'_self'}, 'Weekly')
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}
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print ' ';
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if ($this_graph eq 'month') {
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print 'Monthly';
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} else {
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print a({-href=>$selfurl.'graph=month&',-target=>'_self'}, 'Monthly')
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}
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print ' ';
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if ($this_graph eq 'year') {
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print 'Yearly';
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} else {
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print a({-href=>$selfurl.'graph=year&',-target=>'_self'}, 'Yearly')
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}
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print ' ';
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print ' ';
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print a({-href=>'?'}, 'Change List'),
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' ',
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'(This List is ',param('list'),")\n";
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}
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my $page = param('page') || 'none';
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my $this_host = hostname;
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my @tests;
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my $lists;
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if($page eq 'frame') {
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print "Content-type: text/html\n\n";
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print "<html><head><title>$this_host MRTG Index (V$VERSION)</title></head>\n";
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print '<frameset cols="200,*">'; # FIXME onresize if navigator.family==nn4
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print '<frame src="?page=menu" name=menu>';
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print '<frame src="?page=list&list=OTHER,OTHER" name=list>';
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print "</frameset>\n";
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print "</html>\n";
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} elsif($page eq 'none') {
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print header,
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start_html(-TITLE=>"$this_host MRTG Index (V$VERSION)", -BGCOLOR=>'#e6e6e6'),
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"\n";
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@tests = init_tests(@config_files);
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$lists = init_lists(@tests);
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print table(
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{-width=>"100\%"},
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TR(td("Select which list to show"))
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);
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print_menu_table($lists,'wide');
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print "\n","Direct questions and feedback to ",
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a({-href=>"mailto:hamish\@zot.org"}, "Hamish"),
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" (Version $VERSION)",
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end_html;
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} elsif($page eq 'list') {
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print header,
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start_html(-TITLE=>"$this_host MRTG Index (V$VERSION)", -BGCOLOR=>'#e6e6e6'),
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"\n";
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@tests = init_tests(@config_files);
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$lists = init_lists(@tests);
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# Time the next update to occur a little while after the next interval completes
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my $interval = 300; # 5 min update interval
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my $guardband = 15; # updates occur this many seconds after predicted gif completion
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my $refresh = $interval + $guardband + $gifdone - time; # predict how long until next update
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$refresh = $interval if $refresh <= $guardband;
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my $expires = gmtime (time + $interval * 2 + $guardband);
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my $graph = param('graph') || 'day';
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my $selfurl ='?list='.param('list').'&';
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print
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"<meta http-equiv=\"expires\" content=\"$expires GMT\">\n",
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"<meta http-equiv=\"refresh\" content=$refresh>\n";
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print_graph_chooser($graph,$selfurl);
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print "<br/>";
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print_list($lists,$graph,param('list')||'none');
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print end_html;
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} elsif($page eq 'menu') {
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print header,
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start_html(-TITLE=>"$this_host MRTG Index (V$VERSION)", -BGCOLOR=>'#e6e6e6'),
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"\n";
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@tests = init_tests(@config_files);
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$lists = init_lists(@tests);
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print_menu_table($lists,'high');
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print end_html;
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} elsif($page eq 'noframe') {
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print header,
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start_html(-TITLE=>"$this_host MRTG Index (V$VERSION)", -BGCOLOR=>'#e6e6e6'),
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"\n";
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@tests = init_tests(@config_files);
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$lists = init_lists(@tests);
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# FIXME - duplicated time calculations from above
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# Time the next update to occur a little while after the next interval completes
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my $interval = 300; # 5 min update interval
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my $guardband = 15; # updates occur this many seconds after predicted gif completion
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my $refresh = $interval + $guardband + $gifdone - time; # predict how long until next update
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$refresh = $interval if $refresh <= $guardband;
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my $expires = gmtime (time + $interval * 2 + $guardband);
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my $graph = param('graph') || 'day';
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my $selfurl.='list='.param('list').'&';
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print
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"<meta http-equiv=\"expires\" content=\"$expires GMT\">\n",
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"<meta http-equiv=\"refresh\" content=$refresh>\n";
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print "<table cellpadding=2 cellspacing=0>\n";
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print "<tr><td valign=top>";
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print_menu_table($lists,'high');
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print "<td valign=top>\n";
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print_graph_chooser($graph,$selfurl);
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print "<br/>";
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print_list($lists,$graph,param('list'));
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print "</table>\n";
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print end_html;
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}
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if ($warnings) {
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print "<pre>\n", "$warnings", "</pre>\n";
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}
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