#!/usr/bin/perl -w

#----------------------------------------------------------------------
# copyright (C) 1999-2005 Mitel Networks Corporation
#
# 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; either version 2 of the License, or
# (at your option) 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 General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
#
#----------------------------------------------------------------------

package esmith;

use strict;
use Errno;
use esmith::ConfigDB;
use esmith::util;

=head1 NAME

sshd-conf - action to reconfigure sshd

=head1 SYNOPSIS

  sshd-conf

=head1 DESCRIPTION

Generates the sshd host key with no passphrase.  If one already
exists it simply makes sure the comment in the ssh_host_key is
correct.

=head1 FILES

The following files are affected.

  /etc/ssh/ssh_host_key

=begin testing

use esmith::ConfigDB;

SKIP: {
    my $db;

    skip "You have to be able to read the config DB to test this", 4
      unless $db = esmith::ConfigDB->open;

    $Destruct_Ok = $db->get('testing')->prop('destruction');

    SKIP: {
        skip "sshd reconfiguration would be destructive", 7
          unless $Destruct_Ok;

        # Call ourself.
        system $^X, $Original_File;
        is( $@, '', 'ran myself ok' );

        sleep 1;

        foreach my $file (qw(
                             /etc/ssh/ssh_host_key
                             ) )
        {
            cmp_ok( -M $file, '<', 0, "$file rewritten" );
            cmp_ok( -s $file, '>', 0, "$file is not empty" );
        }
    }
}

=end testing

=cut

my $db = esmith::ConfigDB->open_ro or die "Could not open config db";

for my $typek (qw(dsa rsa ecdsa ed25519)) {
    # Recomment the key in case the SystemName or DomainName changed.
    my @change = (-f "/etc/ssh/ssh_host_${typek}_key") ? ("-c", "-P", "")
                                          : ("-q", "-N", "");
    
    esmith::util::backgroundCommand (0,
        "/usr/bin/ssh-keygen", @change, "-t", "$typek",
        "-f", "/etc/ssh/ssh_host_key",
        "-C", "root@" . $db->get('SystemName')->value . "." . $db->get('DomainName')->value);
}
exit (0);