# Copyright (c) 2007 - OpenSLX GmbH
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# -----------------------------------------------------------------------------
# sysrqshutdown.pm
#    - implementation of the 'sysrqshutdow' plugin, which replaces the shutdown
#      binary through a SYSRQ shutdown script
# -----------------------------------------------------------------------------
package OpenSLX::OSPlugin::sysrqshutdown;

use strict;
use warnings;

use base qw(OpenSLX::OSPlugin::Base);

use File::Path;

use OpenSLX::Basics;
use OpenSLX::Utils;

sub new
{
    my $class = shift;

    my $self = {
        name => 'sysrqshutdown',
    };

    return bless $self, $class;
}

sub getInfo
{
    my $self = shift;

    return {
        description => unshiftHereDoc(<<'        End-of-Here'),
            Replaces the shutdown binary through a SYSRQ shutdown script
        End-of-Here
        precedence => 10,
    };
}

sub getAttrInfo
{
    my $self = shift;

    return {
        'sysrqshutdown::active' => {
            applies_to_systems => 1,
            applies_to_clients => 1,
            description => unshiftHereDoc(<<'            End-of-Here'),
                should the 'sysrqshutdown'-plugin be activated?
            End-of-Here
            content_regex => qr{^(0|1)$},
            content_descr => '1 means active - 0 means inactive',
            default => '1',
        },

    };
}

sub installationPhase
{
    my $self            = shift;
    my $info            = shift;
    my $openslxBasePath = $info->{'openslx-base-path'};                                                                                                                                                                                      
    my $pluginName      = $self->{'name'};                                                                                                                                                                                                   
    my $pluginBasePath  = "$openslxBasePath/lib/plugins/$pluginName/files";

    # copy files
    if (! -e "/sbin/shutdown.slxorig") {
        system("mv /sbin/shutdown /sbin/shutdown.slxorig");
        system("cp -p $pluginBasePath/shutdown /sbin/;
          cp -p $pluginBasePath/shutdown /opt/openslx/plugin-repo/$pluginName");
        chmod 0755, "/sbin/shutdown";
    }
    # else assume reinstall
    elsif (-e "/sbin/shutdown.slxorig") {
        system("cp -p $pluginBasePath/shutdown /sbin/");
        chmod 0755, "/sbin/shutdown"; 
    }

    return;
}

sub removalPhase
{
    my $self = shift;
    my $info = shift;

    if (-e "/sbin/shutdown.slxorig") {
        system("mv /sbin/shutdown.slxorig /sbin/shutdown");
    }

    return;
}

1;