#
# Copyright 2015 Centreon (http://www.centreon.com/)
#
# Centreon is a full-fledged industry-strength solution that meets
# the needs in IT infrastructure and application monitoring for
# service performance.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

package network::citrix::netscaler::common::mode::certificatesexpire;

use base qw(centreon::plugins::mode);

use strict;
use warnings;

sub new {
    my ($class, %options) = @_;
    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
    bless $self, $class;
    
    $self->{version} = '1.0';
    $options{options}->add_options(arguments =>
                                {
                                  "warning:s"       => { name => 'warning' },
                                  "critical:s"      => { name => 'critical' },
                                });

    return $self;
}

sub check_options {
    my ($self, %options) = @_;
    $self->SUPER::init(%options);
    
    if (($self->{perfdata}->threshold_validate(label => 'warning', value => $self->{option_results}->{warning})) == 0) {
       $self->{output}->add_option_msg(short_msg => "Wrong warning threshold '" . $self->{option_results}->{warning} . "'.");
       $self->{output}->option_exit();
    }
    if (($self->{perfdata}->threshold_validate(label => 'critical', value => $self->{option_results}->{critical})) == 0) {
       $self->{output}->add_option_msg(short_msg => "Wrong critical threshold '" . $self->{option_results}->{critical} . "'.");
       $self->{output}->option_exit();
    }
}

sub run {
    my ($self, %options) = @_;
    # $options{snmp} = snmp object
    $self->{snmp} = $options{snmp};

    my $oid_sslCertKeyName = '.1.3.6.1.4.1.5951.4.1.1.56.1.1.1';
    my $oid_sslDaysToExpire = '.1.3.6.1.4.1.5951.4.1.1.56.1.1.5';
    my $result = $self->{snmp}->get_multiple_table(oids => [ { oid => $oid_sslCertKeyName }, { oid => $oid_sslDaysToExpire } ], nothing_quit => 1);
    
    $self->{output}->output_add(severity => 'OK',
                                short_msg => 'All certificates are ok.');
    foreach my $oid ($self->{snmp}->oid_lex_sort(keys %{$result->{$oid_sslCertKeyName}})) {
        $oid =~ /^$oid_sslCertKeyName\.(.*)$/;
        my $name = $result->{$oid_sslCertKeyName}->{$oid};
        my $days = $result->{$oid_sslDaysToExpire}->{$oid_sslDaysToExpire . '.' . $1};
        
        my $exit = $self->{perfdata}->threshold_check(value => $days,
                                                      threshold => [ { label => 'critical', 'exit_litteral' => 'critical' }, { label => 'warning', exit_litteral => 'warning' } ]);
        
        $self->{output}->output_add(long_msg => sprintf("Certificate '%s': %d days remaining before expiration",
                                                        $name, $days));
        if (!$self->{output}->is_status(value => $exit, compare => 'ok', litteral => 1)) {
            $self->{output}->output_add(severity => $exit,
                                        short_msg => sprintf("Certificate '%s': %d days remaining before expiration",
                                                             $name, $days));
        }    
    }

    $self->{output}->display();
    $self->{output}->exit();
}
    
1;

__END__

=head1 MODE

Check number of days remaining before the expiration of certificates (NS-MIB-smiv2).

=over 8

=item B<--warning>

Threshold warning in days.

=item B<--critical>

Threshold critical in days.

=back

=cut