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|
# Perl module to send reports to the Xymon system monitor
# (formerly known as Hobbit)
#
# Copyright (C) 2008, 2009 Christoph Berg <myon@debian.org>
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
package Hobbit;
use strict;
use warnings;
my %color = (
clear => 0,
green => 1,
purple => 2,
yellow => 3,
red => 4,
);
my $gself = {
hostname => 'hobbit.pm',
test => 'uninitialized',
};
bless $gself;
sub max_color ($$)
{
my ($a, $b) = @_;
die "color $a unknown" unless exists $color{$a};
die "color $b unknown" unless exists $color{$b};
return $color{$b} > $color{$a} ? $b : $a;
}
sub new ($)
{
my $class = shift;
my $arg = shift;
unless (ref $arg) {
$arg = {
test => $arg,
};
}
unless ($arg->{test}) {
print STDERR "$0: test name undefined\n";
exit 1;
}
my $self = {
type => ($arg->{type} || 'status'),
color => 'clear',
text => $arg->{text} || '',
hostname => ($arg->{hostname} || $ENV{CLIENTHOSTNAME} ||
$ENV{MACHINEDOTS} || $ENV{MACHINE} || "unknown"),
test => $arg->{test},
title => $arg->{title},
};
$gself = $self;
bless $self;
}
sub add_color ($)
{
my ($self, $color) = @_;
$self->{color} = max_color ($self->{color}, $color);
}
sub print ($)
{
my ($self, $text) = @_;
$self->{text} .= $text;
}
sub color_print ($$)
{
my ($self, $color, $text) = @_;
$self->add_color ($color);
$self->print ($text);
}
sub color_line ($$)
{
my ($self, $color, $text) = @_;
$self->color_print ($color, "&$color $text");
}
sub send ()
{
my $self = shift;
my $report = "$self->{type} $self->{hostname}.$self->{test}";
if ($self->{type} eq 'status') {
my $date = scalar localtime;
my $title = '';
if ($self->{color} eq 'green') {
$title = "$self->{test} OK";
} elsif ($self->{color} eq 'yellow' or $self->{color} eq 'red') {
$title = "$self->{test} NOT ok";
}
$title = ' - ' . ($self->{title} ? $self->{title} : $title)
if ($self->{title} or $title);
$report .= " $self->{color} $date$title";
}
$report .= "\n$self->{text}";
$report .= "\n" unless ($report =~ /\n\n$/);
if ($ENV{BB} and $ENV{BBDISP}) {
open F, "| $ENV{BB} $ENV{BBDISP} @";
print F $report;
close F;
} else {
print $report;
}
}
sub moan ($)
{
my $msg = shift;
my $date = scalar localtime;
print STDERR "$date $0 $gself->{hostname}.$gself->{test}: $msg";
$gself->color_line ('yellow', "Warning: $msg");
}
sub croak ($)
{
my $msg = shift;
my $date = scalar localtime;
print STDERR "$date $0 $gself->{hostname}.$gself->{test}: $msg";
$gself->color_line ('red', "Error: $msg");
$gself->send();
exit 1;
}
$SIG{__WARN__} = \&moan;
$SIG{__DIE__} = \&croak;
1;
|
