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#!/usr/bin/perl -w
# -*- perl -*-
=head1 NAME
asterisk_channelstypes - Plugin to graph the number of channel types
in use
=head1 ABOUT
This plugin uses the asterisk manager API to fetch data.
=head1 CONFIGURATION
The following configuration parameters are used by this plugin
[asterisk_channelstypes]
env.host - hostname to connect to
env.port - port number to connect to
env.username - username used for authentication
env.secret - secret used for authentication
env.channels - The channel types to look for
The "username" and "secret" parameters are mandatory, and have no
defaults.
=head2 DEFAULT CONFIGURATION
[asterisk_channelstypes]
env.host 127.0.0.1
env.port 5038
env.channels Zap IAX2 SIP
=head1 AUTHOR
Copyright (C) 2005-2006 Rodolphe Quiedeville <rodolphe@quiedeville.org>
=head1 LICENSE
Gnu GPLv2
=begin comment
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; version 2 dated June,
1991.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
If you improve this script please send your version to my email address
with the copyright notice upgrade with your name.
=end comment
=head1 MAGIC MARKERS
#%# family=contrib
=cut
use IO::Socket;
use strict;
my @CHANNELS = exists $ENV{'channels'} ? split ' ',$ENV{'channels'} : qw(Zap IAX2 SIP);
if ($ARGV[0] and $ARGV[0] eq "config")
{
print "graph_title Asterisk channels\n";
print "graph_args --base 1000 -l 0\n";
print "graph_vlabel channels\n";
print "graph_category asterisk\n";
foreach my $channel (@CHANNELS) {
if ($channel eq $CHANNELS[0]) {
print "$channel.draw AREA\n";
}
else{
print "$channel.draw STACK\n";
}
print "$channel.label $channel\n";
}
exit 0;
}
my $host = exists $ENV{'host'} ? $ENV{'host'} : "127.0.0.1";
my $port = exists $ENV{'port'} ? $ENV{'port'} : "5038";
my $username = $ENV{'username'};
my $secret = $ENV{'secret'};
my $pop = new IO::Socket::INET (PeerAddr => $host,
PeerPort => $port,
Proto => 'tcp');
die "Could not create socket: $!\n" unless $pop;
## Read connection message.
my $line = $pop->getline;
die $line unless $line =~ /^Asterisk/;
## Send user name.
$pop->print("Action: login\n");
$pop->print("Username: $username\n");
$pop->print("Secret: $secret\n");
$pop->print("Events: off\n");
$pop->print("\n");
#Response: Success
#Message: Authentication accepted
## Request status of messages.
$pop->print("Action: command\n");
$pop->print("Command: core show channels\n");
$pop->print("\n");
#Response: Follows
#Channel Location State Application(Data)
#Zap/pseudo-198641660 s@frompstn:1 Rsrvd (None)
#Zap/1-1 4@frompstn:1 Up MeetMe(5500)
#2 active channels
#1 active call
#--END COMMAND--
my @results;
my ($i, $start)=(0,0);
foreach my $channel (@CHANNELS) {
$results[$i] = 0;
$i++;
}
my @fields;
while (($line = $pop->getline) and ($line !~ /active channels/o))
{
$i = 0;
if ($start) {
@fields = (split '/', $line);
foreach my $channel (@CHANNELS) {
$results[$i] = $results[$i] + 1 if ($fields[0] eq $channel);
$i++;
}
}
$start = 1 if ($line =~ /Channel/o);
}
# Logoff
$pop->print("Action: logoff\n");
$pop->print("\n");
## Exhaust buffer before closing (to avoid polluting Asterisk's logs)
while ($line = $pop->getline) {}
$i = 0;
foreach my $channel (@CHANNELS) {
print "$channel.value $results[$i]\n";
$i++;
}
# vim:syntax=perl