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# $HeadURL$
# $Revision: 502 $
# $Date: 2011-10-24 00:04:51 +0100 (Mon, 24 Oct 2011) $
# $Author: sebthebert $

=head1 NAME

AAT::XMPP - AAT XMPP module

(Extensible Messaging and Presence Protocol (Jabber))

=head1 BUGS

Net::XMPP is buggy with OpenFire & TLS
-> comment 3 lines in Net::XMPP::Protocol (approx. line 1800) 
& disable TLS:

#if($self->{STREAM}->GetStreamFeature($self->GetStreamID(),
# "xmpp-sasl"))
#{
#    return $self->AuthSASL(%args);
#}

=cut

package AAT::XMPP;

use strict;
use warnings;
use Readonly;

use Net::XMPP;

use AAT::Application;
use AAT::Syslog;
use AAT::Utils qw( NOT_NULL );
use AAT::XML;

Readonly my $XMPP_RESOURCE => 'Octopussy'; 
Readonly my $XMPP_TIMEOUT => 3;

my %conf_file = ();

=head1 FUNCTIONS

=head2 Configuration($appli)

Returns the XMPP configuration

=cut

sub Configuration
{
  my $appli = shift;

  $conf_file{$appli} ||= AAT::Application::File($appli, 'xmpp');
  my $conf = AAT::XML::Read($conf_file{$appli}, 1);

  return ($conf->{xmpp});
}


=head2 Configured($appli)

Returns '1' if XMPP is configured (server & port) else '0'

=cut

sub Configured
{
	my $appli = shift;

  $conf_file{$appli} ||= AAT::Application::File($appli, 'xmpp');
  my $conf = AAT::XML::Read($conf_file{$appli}, 1);
  
  return ((defined $conf->{server} && defined $conf->{port}) ? 1 : 0);
}


=head2 Connection_Test($appli)

Checks the XMPP Connection

=cut

sub Connection_Test
{
  	my $appli  = shift;
  	my $status = 0;

  	my $conf_xmpp = Configuration($appli);
  	if (NOT_NULL($conf_xmpp->{server}))
  	{
   		my $client = new Net::XMPP::Client();
    	my @res    = $client->Connect(
      		hostname 		=> $conf_xmpp->{server},
      		port     		=> $conf_xmpp->{port},
			componentname 	=> $conf_xmpp->{component_name},
    		connectiontype 	=> $conf_xmpp->{connection_type} || 'tcpip',
      		tls      		=> $conf_xmpp->{tls},
      		timeout  		=> $XMPP_TIMEOUT,
    );
    if (@res)
    {
      my @res = $client->AuthSend(
        username => $conf_xmpp->{user},
        password => $conf_xmpp->{password},
        resource => $XMPP_RESOURCE
      );
      $status = 1
        if ((\@res == 0)
        || ((@res == 1 && $res[0]) || $res[0] eq 'ok'));
    }
  }

  return ($status);
}

=head2 Send_Message($appli, $msg, @dests)

Sends message '$msg' to '@dests' through XMPP

=cut

sub Send_Message
{
  	my ($appli, $msg, @dests) = @_;

  	my $conf_xmpp = Configuration($appli);
  	my $client    = new Net::XMPP::Client();
  	my @res       = $client->Connect(
    	hostname 		=> $conf_xmpp->{server},
    	port     		=> $conf_xmpp->{port},
		componentname   => $conf_xmpp->{component_name},
        connectiontype 	=> $conf_xmpp->{connection_type} || 'tcpip',
    	tls      		=> $conf_xmpp->{tls},
		timeout         => $XMPP_TIMEOUT,
  	);
  	if (@res)
  	{
		my $sid = $client->{SESSION}->{id};
    	$client->{STREAM}->{SIDS}->{$sid}->{hostname} = $conf_xmpp->{component_name};
    	$client->AuthSend(
      		username => $conf_xmpp->{user},
      		password => $conf_xmpp->{password},
      		resource => $XMPP_RESOURCE
    		);
    	foreach my $dest (@dests)
    	{
      		if (NOT_NULL($dest))
      		{
        		$client->MessageSend('to' => $dest, 'body' => "$msg", 
					resource => $XMPP_RESOURCE);
      		}
    	}
    	sleep 1;
    	$client->Disconnect();

    	return (1);
  	}
  	else
  	{
    	AAT::Syslog::Message('AAT_XMPP', 'XMPP_INVALID_CONFIG');
  	}

	return (0);
}

1;

=head1 AUTHOR

Sebastien Thebert <octo.devel@gmail.com>

=cut