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cablegraph
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cablegraph
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#!/usr/bin/perl
use strict;
use CGI;
use RRDs;
my(%graphs) = (
"powerrx" => {
ds => "Power",
unit => "dBmV",
title => "power received",
direction => "down",
scale => ["-l","-10","-u","10"],
order => 1
},
"powertx" => {
ds => "Power",
unit => "dBmV",
title => "transmit power",
direction => "up",
},
"snrrx" => {
ds => "SNR",
unit => "dB",
title => "SNR received",
direction => "down",
scale => ["-l","30","-u","45"],
order => 2
},
"octets" => {
ds => \&octets_ds,
unit => "bits/s",
title => "Per Channel Data Transferred",
direction => "down",
order => 3
},
"corrected" => {
ds => \&corrected_ds,
unit => "%",
title => "% Octets Corrected",
direction => "down",
scale => ["-l","0","-u","1"],
order => 4
},
"uncorrected" => {
ds => \&uncorrected_ds,
unit => "%",
title => "% Octets Uncorrectable",
direction => "down",
scale => ["-l","0","-u","1"],
order => 5
},
"freqrx" => {
ds => "Freq",
unit => "MHz",
title => "Receive Frequency",
direction => "down",
order => 6
},
"freqtx" => {
ds => "Freq",
unit => "MHz",
title => "Transmit Frequency",
direction => "up",
},
"octets_sum" => {
ds => \&octets_ds,
line => sub { return ();},
summaries => \&octets_sum,
unit => "bits/s",
title => "Total Data Transferred",
direction => "down",
}
);
my(%channels) = (
down => 16,
up => 4
);
my $c = CGI->new;
my @rx_types = grep { $graphs{$_}{"direction"} eq "down" and $_ ne "octets_sum" } keys %graphs;
@rx_types = sort { $graphs{$a}{order} <=> $graphs{$b}{order} } @rx_types;
sub show_index {
print <<HTML;
<html><body>
<h1>Recieve</h1>
<img src="cablegraph?graph=octets_sum">
<br>
HTML
foreach my $type (@rx_types) {
foreach my $group (qw(low high)) {
print qq(<a href="cablegraph?showgroup=$group&type=$type"><img src="cablegraph?graph=$type&group=$group"></a>\n);
}
print "<br>\n";
}
print <<HTML;
<h1>Transmit</h1>
<img src="cablegraph?graph=powertx"><br>
<img src="cablegraph?graph=freqtx"><br>
HTML
}
sub show_group {
my($group,$type,$low,$high) = @_;
print <<HTML;
<html><body>
<h1>Recieve - $group/$type</h1>
<img src="cablegraph?graph=octets_sum">
<br>
HTML
for(my $i = $low; $i < $high; $i++) {
print "Channel ".($i + 1)."<br>\n";
print qq(<a href="cablegraph?showchannel=$i"><img src="cablegraph?graph=$type&channel=$i"></a><br>\n);
}
}
sub show_channel {
my($channel) = @_;
my $channel_display = $channel + 1;
print <<HTML;
<html><body>
<h1>Recieve - Channel $channel_display</h1>
<img src="cablegraph?graph=octets_sum">
<br>
HTML
foreach my $type (@rx_types) {
print qq(<img src="cablegraph?graph=$type&channel=$channel"><br>\n);
}
}
sub corrected_ds {
my($chan,$direction) = @_;
return (
"DEF:Correcteds$chan=/var/db/cable/$direction-$chan.rrd:Correcteds:AVERAGE",
"DEF:Octets$chan=/var/db/cable/$direction-$chan.rrd:Octets:AVERAGE",
"CDEF:p$chan=Correcteds$chan,Correcteds$chan,Octets$chan,+,/,100,*"
);
}
sub uncorrected_ds {
my($chan,$direction) = @_;
return (
"DEF:Uncorrectables$chan=/var/db/cable/$direction-$chan.rrd:Uncorrectables:AVERAGE",
"DEF:Correcteds$chan=/var/db/cable/$direction-$chan.rrd:Correcteds:AVERAGE",
"DEF:Octets$chan=/var/db/cable/$direction-$chan.rrd:Octets:AVERAGE",
"CDEF:p$chan=Uncorrectables$chan,Uncorrectables$chan,Correcteds$chan,Octets$chan,+,+,/,100,*"
);
}
sub octets_ds {
my($chan,$direction) = @_;
return (
"DEF:Octets$chan=/var/db/cable/$direction-$chan.rrd:Octets:AVERAGE",
"DEF:Correcteds$chan=/var/db/cable/$direction-$chan.rrd:Correcteds:AVERAGE",
"CDEF:p$chan=Octets$chan,Correcteds$chan,+,8,*"
);
}
sub octets_sum {
my($start,$channels) = @_;
my($cdef) = "CDEF:total=0";
for(my $chan = $start; $chan < $channels; $chan++) {
$cdef .= ",p$chan,+";
}
return (
$cdef,
"LINE2:total#ff8a00:Downloaded"
);
}
my $graph = $graphs{$c->param("graph")};
if(not defined $graph) {
print $c->header("text/html");
my $type = $c->param("type");
if(not defined $graphs{$type}) {
$type = "powerrx";
}
my $showgroup = $c->param("showgroup");
my $showchannel = $c->param("showchannel");
if($showgroup eq "low") {
show_group($showgroup, $type, 0, 8);
} elsif($showgroup eq "high") {
show_group($showgroup, $type, 8, 16);
} elsif($showchannel =~ /^[0-9]+$/) {
show_channel($showchannel);
} else {
show_index();
}
exit(0);
}
print $c->header("image/png");
my $channels = $channels{$graph->{direction}};
my(@colors) = (
"ff0000", # Red
"00ff00", # Green
"0000ff", # Blue
"996633", # brownish
"ff00d3", # Magenta
"ffff00", # Yellow
"ff8a00", # Orange
"9fd300", # GreenYellow
"00ff9f", # Spring Green
"008aff", # SkyBlue
"9400d3", # Violet
"7bae33", # MediumForestGreen
"696969", # DimGray
"da6bd4", # Orchid
"3eacb5", # MediumTurquoise
"000000", # Black
"7221bc", # BlueViolet
"ac4da6", # MediumOrchid
"6a2566", # DarkOrchid
"670748", # Maroon
"4c2e57", # Plum
"7586be", # SlateBlue
"4f4f2f", # DarkOliveGreen
"2e9b1c", # LimeGreen
"d3d3d3", # LightGray
"00ffff", # Cyan
"aeaeae", # Gray
"c71585", # MediumVioletRed
);
my(@defs,@lines);
my $start = 0;
if($graph->{direction} eq "down" and $c->param("group") eq "high") {
$start = 8;
} elsif($graph->{direction} eq "down" and $c->param("group") eq "low") {
$channels = 8;
} elsif($c->param("channel") =~ /^[0-9]+$/ and $c->param("channel") < $channels) {
$start = $c->param("channel");
$channels = $c->param("channel") + 1;
}
for(my $chan = $start; $chan < $channels; $chan++) {
if(ref($graph->{ds})) {
push(@defs,$graph->{ds}->($chan,$graph->{direction}));
} else {
push(@defs,"DEF:p$chan=/var/db/cable/".$graph->{direction}."-$chan.rrd:".$graph->{ds}.":AVERAGE");
}
if(ref($graph->{line})) {
push(@lines,$graph->{line}->($chan,$colors[$chan]));
} else {
push(@lines,"LINE2:p$chan#".$colors[$chan].":Channel ".sprintf("%02d",$chan+1));
}
}
if(ref($graph->{summaries})) {
push(@lines,$graph->{summaries}->($start,$channels));
}
my(@args) = ("-","-s","now-24h","-e","now","-t",$graph->{title},"-v",$graph->{unit});
if($graph->{scale}) {
push(@args,@{$graph->{scale}});
}
my $graph = RRDs::graphv(@args,@defs,@lines);
print $graph->{image};