#!/usr/bin/perl # -*- Mode: perl; indent-tabs-mode: nil -*- # # The contents of this file are subject to the Mozilla Public License Version # 1.1 (the "License"); you may not use this file except in compliance with # the License. You may obtain a copy of the License at # http://www.mozilla.org/MPL/ # # Software distributed under the License is distributed on an "AS IS" basis, # WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License # for the specific language governing rights and limitations under the # License. # # The Original Code is the Mozilla graph tool. # # The Initial Developer of the Original Code is AOL Time Warner, Inc. # # Portions created by AOL Time Warner, Inc. are Copyright (C) 2001 # AOL Time Warner, Inc. All Rights Reserved. # # Contributor(s): # Chris McAfee # John Morrison # # # Basic graph cgi, wrapper for gnuplot that generates a png file. # Download gnuplot here: http://www.gnuplot.info/download.html # # OSX 10.3 (possibly 10.4) needs to install libpng, gnuplot from sourceforge. # # # These are the perl modules we went with at the time, there are probably # more-standard packages now. # use CGI::Carp qw(fatalsToBrowser); # CPAN use CGI::Request; # http://stein.cshl.org/WWW/software/CGI::modules/ use Date::Calc qw(Add_Delta_Days); # CPAN, or http://www.engelschall.com/u/sb/download/Date-Calc/ my $req = new CGI::Request; # Pull out cgi arguments from URL. my $TESTNAME = lc($req->param('testname')); my $UNITS = lc($req->param('units')); my $TBOX = lc($req->param('tbox')); my $AUTOSCALE = lc($req->param('autoscale')); my $SIZE = lc($req->param('size')); my $DAYS = lc($req->param('days')); my $LTYPE = lc($req->param('ltype')); my $POINTS = lc($req->param('points')); my $SHOWPOINT = lc($req->param('showpoint')); my $AVG = lc($req->param('avg')); my $DATAFILE = "db/$TESTNAME/$TBOX"; my $DATAFILE_AVG = $DATAFILE . "_avg"; sub make_filenames_list { my ($dir) = @_; my @result; if (-d "$dir") { chdir "$dir"; while(<*>) { if( $_ ne 'config.txt' ) { push @result, $_; } } chdir "../.."; } return @result; } # Print out a list of testnames in db directory if machine arg is blank. sub print_testnames { my ($testname) = @_; # HTTP header print "Content-type: text/html\n\n\n"; print "testnames"; print "

testnames

"; print "

"; print ""; print "
Select one of the following tests:
\n"; print "
    \n"; my @machines = make_filenames_list("db"); my $machines_string = join(" ", @machines); foreach (@machines) { print "
  • $_\n"; } print "
"; } # Print out a list of machines in db/ directory if testname is blank. sub print_machines { my ($testname) = @_; # HTTP header print "Content-type: text/html\n\n\n"; print "$TESTNAME machines"; print "

$TESTNAME machines:

"; print "

"; print ""; print "
Select one of the following machines:
\n"; print "
    \n"; my @machines = make_filenames_list("db/$testname"); my $machines_string = join(" ", @machines); foreach (@machines) { print "
  • $_\n"; } print "
"; } sub show_graph { die "$TBOX: no data file found." unless -e $DATAFILE; my $PNGFILE = "/tmp/gnuplot.$$"; # Find gnuplot, sorry this is for solaris. my $gnuplot; if(-f "/usr/bin/gnuplot") { $gnuplot = "/usr/bin/gnuplot"; } elsif(-f "/usr/local/bin/gnuplot") { $gnuplot = "/usr/local/bin/gnuplot"; $ENV{LD_LIBRARY_PATH} .= "/usr/local/lib"; } else { die "Can't find gnuplot."; } # Set scaling for x-axis (time) my $xscale; my $today; my $n_days_ago; # Get current time, $today. my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdat) = localtime(); $year += 1900; $mon += 1; $today = sprintf "%04d:%02d:%02d:%02d:%02d:%02d", $year, $mon, $mday, $hour, $min, $sec; # Calculate date $DAYS before $today. my ($year2, $mon2, $mday2) = Add_Delta_Days($year, $mon, $mday, -$DAYS); $n_days_ago= sprintf "%04d:%02d:%02d:%02d:%02d:%02d", $year2, $mon2, $mday2, $hour, $min, $sec; if($DAYS) { # Assume we want to see 7 days on the graph, so we set the max value also. $xscale = "set xrange [\"$n_days_ago\" : \"$today\"]"; } else { $xscale = ""; } # Set scaling for y-axis. my $yscale; if($AUTOSCALE) { $yscale = ""; } else { $yscale = "set yrange [ 0 : ]"; } # Set graph size. Default is (1.0, 1.0). my $graph_size; if($SIZE) { $graph_size = "set size $SIZE, $SIZE"; } else { $graph_size = ""; } # Set units. Assume ms unless otherwise specified. unless($UNITS) { $UNITS = "ms"; } my $ltype = "lines"; if($LTYPE eq "steps") { $ltype = "steps"; } my $plot_cmd; if($POINTS) { # lt $plot_cmd = "plot \"$DATAFILE\" using 1:2 with $ltype, \"$DATAFILE\" using 1:2 with points ls 1"; } else { $plot_cmd = "plot \"$DATAFILE\" using 1:2 with $ltype"; } # Highlight a point, e.g. 2002:03:21:06:52:28,4087 if($SHOWPOINT) { my @xy = split(",",$SHOWPOINT); open POINTFILE, ">db/$TESTNAME/point.$$"; print POINTFILE "$xy[0]\t$xy[1]\n"; close POINTFILE; $plot_cmd .= ", \"db/$TESTNAME/point.$$\" using 1:2 with points ls 4"; } if (($AVG) and (-e $DATAFILE_AVG)) { $plot_cmd .= ", \"$DATAFILE_AVG\" using 1:2 with lines ls 3"; #$plot_cmd .= ", \"$DATAFILE_AVG\" using 1:2 smooth bezier ls 3"; } # interpolate params into gnuplot command # Removing set format x, let gnuplot figure this out. # # ls 1 = small blue points # ls 2 = larger blue points # # lt: 0=grey, 1=red, 2=green, 3=blue, 4=cyan, 5=magenta, 6=yellow, # 7=dk.red, 8=dk.green, 9=dk.blue # # gnuplot 3.7: "linestyle" # gnuplot 4.0: "style line" # my $cmds = qq{ reset $graph_size set term png color set output "$PNGFILE" set title "$TBOX $TESTNAME" set key graph 0.1,0.95 reverse spacing .75 width -18 set linestyle 1 lt 3 lw 1 pt 7 ps .5 set linestyle 2 lt 3 lw 1 pt 7 ps 1 set linestyle 3 lt 3 lw 1 set linestyle 4 lt 8 lw 1 pt 7 ps 3 set data style points set timefmt "%Y:%m:%d:%H:%M:%S" set xdata time $xscale $yscale set ylabel "$TESTNAME ($UNITS)" set timestamp "Generated: %d/%b/%y %H:%M" 0,-1 set nokey set grid $plot_cmd $plot_cmd2 }; # plot "$DATAFILE" using 1:2 with points ps 1, "$DATAFILE" using 1:2 with lines ls 2 # Set up command string for gnuplot open (GNUPLOT, "| $gnuplot") || die "can't fork: $!"; print GNUPLOT $cmds; close (GNUPLOT) || die "Empty data set? Gnuplot failed to set up the plot command string : $!"; # Actually do the gnuplot command. open (GNUPLOT, "< $PNGFILE") || die "can't read: $!"; { local $/; $blob = ; } close (GNUPLOT) || die "can't close: $!"; unlink $PNGFILE || die "can't unlink $PNGFILE: $!"; # Cleanup generated files. if($SHOWPOINT) { unlink("db/$TESTNAME/point.$$"); } print "Content-type: image/png\n\n"; print $blob; } # main { if(!$TESTNAME) { print_testnames(); } elsif(!$TBOX) { print_machines($TESTNAME); } else { show_graph(); } } exit 0;