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#!/usr/bin/perl
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# mrtgindex.cgi v 1.1
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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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# Why CGI?
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# Mrtgindx.cgi has features that only CGI can provide.
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# Runtime index:
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# The index page is built every time the page is requested.
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# Changes to config files are visible on the next update.
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# Clickable graphs:
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# Each graph is a clickable hyperlink to more information.
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# Automatic updates:
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# The index page automatically updates every 5 minutes.
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# Modify $interval to adjust this period.
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# Timely updates:
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# Mrtgindx.cgi predicts when to update based on when the
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# current graphs were completed.
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# Updates occurs shortly after the graphs are completed
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# regardless of when the page was initially requested.
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# Modify $guardband to adjust this period.
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# If the guardband is too small you run the risk of attempting
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# an update while a graph is under construction.
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# Predictable graph order:
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# Graphs appear in the same order as Titles in the config files.
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# If there are multiple config files graphs from the first config
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# file appear before those from the second, etc.
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# Customizable graph order:
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# If you want your index ordered differently than your
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# config files you can use a dummy config file. Mrtgindex.cgi is
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# only interested in "Title" statements. You could, for example,
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# have different dummy config files for different arangements
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# of graphs.
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# Web based graph order selection:
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# Click Top, Up, Down, or Bot to change the position of a graph.
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# Multiple config files:
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# Mrtgindex.cgi supports multiple config files. Some users
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# run mrtg with more than one config file. The reason may be
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# because certain events are run on a different schedules,
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# 5 and 10 minute intervals for example.
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# Or perhaps multiple instances of mrtg are run
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# to assure completion within a 5 minute interval.
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# Ping-probes have longer run times than measuring traffic
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# on local routers, for example. However, CPU load is similar.
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# Modify the @config_files array below to suit your environment.
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# Runs fast:
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# Mrtgindx.cgi is fast because it doesn't create graph files or
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# maintain log files. In addition, web based graph order changes
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# benefit from browser cacheing of graphs.
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# Index.cgi:
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# You might want to rename this file "index.cgi". Then it
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# will load automatically when when the directory is browsed -
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# much as index.html loads automatically. You might have to
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# modify "DirectoryIndex" in srm.conf if you're using Apache
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# to allow CGI programs to be index files.
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# CGI.pm required:
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# Mrtgindex.cgi requires CGI.pm by Lincoln Stein
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# http://www-genome.wi.mit.edu/ftp/pub/software/WWW/cgi_docs.html
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#-------------------------------------------------------
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# Modify this statement to match your configuration
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#@config_files = ('/usr/share/WWW/mrtg/mrtg.cfg'); # Single config file
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#@config_files = ('mrtg.cfg', 'mrtg-ping.cfg'); # Two config files
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#@config_files = ('mrtg.cfg', 'yahoo.ping', 'netscape.ping', 'msn..ping', 'att.ping'); # anal retentive
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@config_files = ('/etc/mrtg.cfg'); # Single config file
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#-------------------------------------------------------
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require 'stat.pl';
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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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#use diagnostics;
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my %ysizes;
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my %xsizes;
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my $xsize_default = 500;
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$gifdone = 0; # Scan for newest graph and save info for later
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while(@config_files > 0){
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open(In, $cfg = shift @config_files) ||
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die "Can't open $cfg. Check \@config_files array.\n";
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while(<In>){
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if ( $_ =~ /^YSize\[(.*)\]:\s*(.+)$/ ) {
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$ysizes{lc $1} = $2 +35;
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next;
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}
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if ( $_ =~ /^XSize\[(.*)\]:\s*(.+)$/ ) {
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$xsizes{lc $1} = $2 +100;
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next;
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}
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if ( $_ =~ /^Xsize\[_\]:\s*(.+)$/ ) {
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$xsize_default = $1 +100;
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}
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next unless /^Title\[(.*)\]:\s*(.+)$/; # Look for a title keyword
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$router = lc $1;
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Stat("$router-day.png");
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@$router = ($st_mtime, $2); # Save the mod date and title
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push @routers, $router; # Remember the router name so we can find above info
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$gifdone = $st_mtime if $st_mtime > $gifdone; # Find the newest file
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}
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close In;
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}
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# Time the next update to occur a little while after the next interval completes
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$interval = 300; # 5 min update interval
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$guardband = 15; # updates occur this many seconds after predicted gif completion
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$refresh = $interval + $guardband + $gifdone - time; # predict how long until next update
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$refresh = $interval if $refresh <= $guardband;
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$expires = gmtime (time + $interval * 2 + $guardband);
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my $this_host = hostname;
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print header, start_html(-TITLE=>"$this_host Daily Stats", -BGCOLOR=>'#e6e6e6'),
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"\n",
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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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table({-width=>"100\%"}, TR(
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#-------------------------------------------------------
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# Uncomment the following line if you have Count.cgi installed.
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# td({-align=>left, width=>"25\%"}, img({-src=>"/cgi-bin/Count.cgi?display=clock"})),
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#-------------------------------------------------------
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td("Click graph for more info")));
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@router_order = (0..$#routers);
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@router_order = split /:/, param('ord') if defined param('ord');
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$selfurl = url;
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$selfurl =~ s/\?.*//; # Remove arguments
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for $index (0..$#routers){
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@spliced = @router_order;
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$router_num = splice @spliced, $index, 1; # Router removed
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$router = $routers[$router_num];
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$time = localtime $$router[0]; # $st_mtime saved in above loop
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($time) = $time =~ /(\d+:\d+:\d+)/; # Just the time
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print hr, "\n";
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print a({-name=>$index});
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# Print re-ordering links top, bot, up, dn
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$mv_dn = $mv_up = "";
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$" = ':';
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if($index > 0){
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@top = ($router_num, @spliced);
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@up = @spliced;
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$indxup = $index - 1;
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splice @up, $indxup, 0, $router_num;
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$mv_up = sprintf "%s %s ", a({-href=>"$selfurl?ord=@top#0"}, "Top"), # move to top
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a({-href=>"$selfurl?ord=@up#$indxup"}, "Up"); # move up
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}
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if($index < $#routers){
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@bot = (@spliced, $router_num);
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@down = @spliced;
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$indxdn = $index + 1;
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splice @down, $indxdn, 0, $router_num;
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$indxbot = @routers - 3;
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while($indxbot < 0){$indxbot += 1}
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$mv_dn = sprintf "%s %s ", a({-href=>"$selfurl?ord=@down#$indxdn"}, "Down"), # move down
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a({-href=>"$selfurl?ord=@bot#$indxbot"}, "Bot"); # move to bottom
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}
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undef $";
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print table({-width=>"100\%"},
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TR(td({-align=>"left",-width=>"20\%"}, "$mv_up $mv_dn"),
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td({-align=>"left"}, b($$router[1]), " $time")));
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if ( exists $ysizes{$router} ) {
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$ysize = $ysizes{$router};
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} else {
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$ysize = "135";
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}
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if ( exists $xsizes{$router} ) {
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$xsize = $xsizes{$router};
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} else {
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#$xsize = "500";
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$xsize = $xsize_default;
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}
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print a({-href=>"$router.html"}, img{-src=>"$router-day.png", -height=>"$ysize", -width=>"$xsize"});
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}
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print "\n",hr,"Direct questions and feedback to Mick Ghazey: ",
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a({-href=>"mailto:mick\@lowdown.com"}, "mick\@lowdown.com"),
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end_html;
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