Nagios alert to xAP message

A quickie post detailing a perl script for Nagios that will broadcast the alert details over the xAP network!

It will send xAP messages like this:

xap-header
{
v=12
hop=1
UID=FF969900
class=nagios.alert
Source=ahs.nagios.ahssheevaplug1
}
alert.details
{
event=Host Alert
type=Failure
host=test.aceshigh.local
hostaddress=192.168.1.1
state=down
service=NONE
info=fubar
date=2012-01-24
time=12:00:00
}

The host command for Nagios should look like this:

define command {
                command_name                          notify-host-by-xap
                command_line                          /usr/bin/perl -w /usr/lib/nagios/plugins/xap.pl -application="Nagios" -event="Host Alert" -type="$NOTIFICATIONTYPE$" -host="$HOSTALIAS$" -hostaddress="$HOSTADDRESS$" -state="$HOSTSTATE$" -service="NONE" -info="$HOSTOUTPUT$" -date="$DATE$" -time="$TIME$"
}

The service command for Nagios should look like this:

define command {
                command_name                          notify-service-by-xap
                command_line                          /usr/bin/perl -w /usr/lib/nagios/plugins/xap.pl -application="Nagios" -event="Service Alert" -type="$NOTIFICATIONTYPE$" -host="$HOSTALIAS$" -hostaddress="$HOSTADDRESS$" -state="$SERVICESTATE$" -service="$SERVICEDESC$" -info="$SERVICEOUTPUT$" -date="$DATE$" -time="$TIME$"
}

Here’s the perl script:

#!/usr/bin/perl
#
# xAP Nagios Alert Sender
#
# Version: 0.1
#
#define command {
#                command_name                          notify-host-by-xap
#                command_line                          /usr/bin/perl -w /usr/lib/nagios/plugins/xap.pl -application="Nagios" -event="Host Alert" -type="$NOTIFICATIONTYPE$" -host="$HOSTALIAS$" -hostaddress="$HOSTADDRESS$" -state="$HOSTSTATE$" -service="NONE" -info="$HOSTOUTPUT$" -date="$DATE$" -time="$TIME$"
#}
#
#define command {
#                command_name                          notify-service-by-xap
#                command_line                          /usr/bin/perl -w /usr/lib/nagios/plugins/xap.pl -application="Nagios" -event="Service Alert" -type="$NOTIFICATIONTYPE$" -host="$HOSTALIAS$" -hostaddress="$HOSTADDRESS$" -state="$SERVICESTATE$" -service="$SERVICEDESC$" -info="$SERVICEOUTPUT$" -date="$DATE$" -time="$TIME$"
#}
#
#./xap.pl -application="Nagios" -event="Host Alert" -type="Failure" -host="test.aceshigh.local" -hostaddress="192.168.1.1" -state="down" -service="NONE" -info="fubar"  -date="2012-01-24" -time="12:00:00"
#
#xap-header
#{
#v=12
#hop=1
#UID=FF969900
#class=nagios.alert
#Source=ahs.nagios.ahssheevaplug1
#}
#alert.details
#{
#event=Host Alert
#type=Failure
#host=test.aceshigh.local
#hostaddress=192.168.1.1
#state=down
#service=NONE
#info=fubar
#date=2012-01-24
#time=12:00:00
#}

use warnings;
use strict;
use IO::Socket::INET;
use Log::Log4perl;
use Getopt::Long;
my $xap_base_uid = "FF9699";
my $xap_uid = "00";
my $xap_base_name = "ahs.nagios.ahssheevaplug1";
my $xap_broadcast = '255.255.255.255';
my $xap_port = 3639;
my $debug = 1;
my $log_conf = q~ 
    log4perl.category = INFO, Logfile, Screen 
    log4perl.appender.Logfile = Log::Dispatch::FileRotate
    log4perl.appender.Logfile.filename = /var/log/nagios3/xap.log 
	log4perl.appender.Logfile.max = 7
	log4perl.appender.Logfile.DatePattern = yyyy-MM-dd
	log4perl.appender.Logfile.TZ = GMT
    log4perl.appender.Logfile.mode = write 
    log4perl.appender.Logfile.layout = Log::Log4perl::Layout::PatternLayout
	log4perl.appender.Logfile.layout.ConversionPattern = %d %p> %m%n
    log4perl.appender.Screen = Log::Log4perl::Appender::Screen 
    log4perl.appender.Screen.layout = Log::Log4perl::Layout::PatternLayout
	log4perl.appender.Screen.layout.ConversionPattern = %d %p> %m%n
~;
Log::Log4perl::init( \$log_conf );
my $logger = Log::Log4perl::get_logger();
my $xap_client = IO::Socket::INET->new(PeerAddr => $xap_broadcast, PeerPort => $xap_port, Proto => 'udp', Broadcast => 1);
my $i = 1;

my %options = ();
GetOptions(\%options, 'application=s', 'event=s', 'type=s', 'host=s', 'hostaddress=s', 'state=s', 'service=s', 'info=s', 'date=s', 'time=s');
&send_event($options{'application'}, $options{'event'}, $options{'type'}, $options{'host'}, $options{'hostaddress'}, $options{'state'}, $options{'service'}, $options{'info'}, $options{'date'}, $options{'time'});
$xap_client->close();

sub send_event {

    my ($application, $event, $type, $host, $hostaddress, $state, $service, $info, $date, $time) = @_;
	$logger->info("<send_event> application $application") if $debug;
	$logger->info("<send_event> event $event") if $debug;
	$logger->info("<send_event> type $type") if $debug;
	$logger->info("<send_event> host $host") if $debug;
	$logger->info("<send_event> hostaddress $hostaddress") if $debug;
	$logger->info("<send_event> state $state") if $debug;
	$logger->info("<send_event> service $service") if $debug;
	$logger->info("<send_event> info $info") if $debug;
	$logger->info("<send_event> date $date") if $debug;
	$logger->info("<send_event> time $time") if $debug;
	my $msg = "xap-header\n";
	$msg .= "{\n";
	$msg .= "v=12\n";
	$msg .= "hop=1\n";
	$msg .= "uid=$xap_base_uid$xap_uid\n";
	$msg .= "class=" . cleanstring($application) . ".alert\n";
	$msg .= "source=$xap_base_name\n";
	$msg .= "}\n";
	$msg .= "alert.details\n";
	$msg .= "{\n";
	$msg .= "event=" . cleanstring($event) . "\n";
	$msg .= "type=" . cleanstring($type) . "\n";
	$msg .= "host=" . cleanstring($host) . "\n";
	$msg .= "hostaddress=" . cleanstring($hostaddress) . "\n";
	$msg .= "state=" . cleanstring($state) . "\n";
	$msg .= "service=" . cleanstring($service) . "\n";
	$msg .= "info=" . cleanstring($info) . "\n";
	$msg .= "date=" . cleanstring($date) . "\n";
	$msg .= "time=" . cleanstring($time) . "\n";
	$msg .= "}\n";
	$xap_client->send($msg);
	$logger->info("<send_event> sending \n$msg") if $debug;
}

sub cleanstring {	my $string = shift;
	$string =~ s/^\s+//;
	$string =~ s/\s+$//;
	$string =~ s/[^A-Za-z0-9\.\,\-\%\: ]+//g;
	$string =~ s/\:$//g;
	return lc($string);
}

It can also be downloaded by clicking xap.pl

Hope you find it useful!

Thanks for reading,

Martyn Wendon

Nagios Core Administration Cookbook

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