#!/usr/bin/perl
# --
# Copyright (C) 2001-2016 OTRS AG, http://otrs.com/
# --
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU AFFERO General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# any later version.
#
# 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 Affero General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
# or see http://www.gnu.org/licenses/agpl.txt.
# --

use strict;
use warnings;

use File::Basename;
use FindBin qw($RealBin);
use lib dirname($RealBin);
use lib dirname($RealBin) . '/Kernel/cpan-lib';
use lib dirname($RealBin) . '/Custom';

use Kernel::Config;
use Kernel::System::Encode;
use Kernel::System::Log;
use Kernel::System::Main;
use Kernel::System::Time;
use Kernel::System::DB;
use Kernel::System::AuthSession;

# common objects
my %CommonObject = ();
$CommonObject{ConfigObject} = Kernel::Config->new();
$CommonObject{EncodeObject} = Kernel::System::Encode->new(%CommonObject);
$CommonObject{LogObject}    = Kernel::System::Log->new(
    LogPrefix => 'OTRS-otrs.DeleteSessionIDs.pl',
    %CommonObject,
);
$CommonObject{MainObject}    = Kernel::System::Main->new(%CommonObject);
$CommonObject{TimeObject}    = Kernel::System::Time->new(%CommonObject);
$CommonObject{DBObject}      = Kernel::System::DB->new(%CommonObject);
$CommonObject{SessionObject} = Kernel::System::AuthSession->new(%CommonObject);

# check args
my $Command = shift || '--help';
print "otrs.DeleteSessionIDs.pl - delete all existing or expired session ids\n";
print "Copyright (C) 2001-2016 OTRS AG, http://otrs.com/\n";

# show/delete all session ids
if ( ( $Command eq '--all' ) || ( $Command eq '--showall' ) ) {

    print " Working on all session ids:\n";

    # get all sessions
    my @List = $CommonObject{SessionObject}->GetAllSessionIDs();

    for my $SessionID (@List) {

        if ( $Command eq '--showall' ) {
            print " SessionID $SessionID!\n";
        }
        elsif ( $CommonObject{SessionObject}->RemoveSessionID( SessionID => $SessionID ) ) {
            print " SessionID $SessionID deleted.\n";
        }
        else {
            print " Warning: Can't delete SessionID $SessionID!\n";
        }
    }

    exit 0;
}

# show/delete all expired session ids
elsif ( ( $Command eq '--expired' ) || ( $Command eq '--showexpired' ) ) {
    print " Working on expired session ids:\n";

    # get expired session ids
    my @Expired = $CommonObject{SessionObject}->GetExpiredSessionIDs();

    # expired session
    for my $SessionID ( @{ $Expired[0] } ) {

        if ( $Command eq '--showexpired' ) {
            print " SessionID $SessionID expired!\n";
        }
        elsif ( $CommonObject{SessionObject}->RemoveSessionID( SessionID => $SessionID ) ) {
            print " SessionID $SessionID deleted (too old).\n";
        }
        else {
            print " Warning: Can't delete SessionID $SessionID!\n";
        }
    }

    # idle session
    for my $SessionID ( @{ $Expired[1] } ) {

        if ( $Command eq '--showexpired' ) {
            print " SessionID $SessionID idle timeout!\n";
        }
        elsif ( $CommonObject{SessionObject}->RemoveSessionID( SessionID => $SessionID ) ) {
            print " SessionID $SessionID deleted (idle timeout).\n";
        }
        else {
            print " Warning: Can't delete SessionID $SessionID!\n";
        }
    }

    exit 0;
}

# show usage
print "usage: $0 [options] \n";
print "  Options are as follows:\n";
print "  --help          display this option help\n";
print "  --showexpired   show all expired session ids\n";
print "  --expired       delete all expired session ids\n";
print "  --showall       show all session ids\n";
print "  --all           delete all session ids\n";

exit 1;
