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#!/usr/bin/perl

# Drakwizard
# Copyright (C) 2002,2005 Mandriva
#
# Authors: antoine Ginies <aginies@mandriva>
#
# 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, 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 MDK::Wizard::Sshd;
use strict;

use common;
use services;
use MDK::Wizard::Wizcommon;
use Libconf::Templates;
use Libconf::Glueconf::Ssh::Sshd_config;


my $wiz = new MDK::Wizard::Wizcommon;
my $conf = "/etc/ssh/sshd_config";
my $DOMAINNAME = chomp_(`dnsdomainname`);
my $SHORTHOSTNAME = chomp_(`hostname -s`);

# remove anoying \t in /etc/ssh/sshd_config to permit Glueconf to read it
substInFile { s/\t/ /gi } $conf;
# we ask glueconf to give us the structure representing /etc/ssh/sshd_config
my $sshd = new Libconf::Glueconf::Ssh::Sshd_config({ filename => '/etc/ssh/sshd_config' });

# ------ debug
use Data::Dumper;
print Dumper($sshd);

my $o = {
         name => 'Ssh wizard',
         var => {
		 wiz_port => '',
		},
	 init => sub {
	   test_host_domain($SHORTHOSTNAME, $DOMAINNAME);
         },
         needed_rpm => [ 'openssh-server' ],
         defaultimage => "/usr/share/wizards/sshd_wizard/images/sshd.png"
	};

my @yesorno = qw(yes no); push @yesorno, "";

my %type = (
            1 => N('Classical Ssh server'),
	    2 => N('Permit Ssh login only with authorized_keys'),
	   );

$o->{pages} = {
               welcome => {
			   name => N('Ssh server configuration'),
                           post => sub {
                             if ($o->{var}{wiz_type} == 2) {
                               return 'via_auth' }
                             elsif ($o->{var}{wiz_type} == 1) {
                               return 'classical' }
                           },
                           data => [
                                    { label => N("Wich type of Ssh server do you you want:"), val => \$o->{var}{wiz_type}, list => [ keys %type ], format => sub { $type{$_[0]} } }, 
				   ],
			  },
	       classical => {
			     name => N('Ssh server'),
			     pre => sub {
			       $sshd->{Protocol} and $o->{var}{wiz_protocol} = $sshd->{Protocol} or $o->{var}{wiz_protocol} = "2";
			     },
			     data => [
				      { label => N('Protocol:'), fixed_val => \$o->{var}{wiz_protocol} },
				     ],
			     next => 'config_step1',
			    },
	       config_step1 => {
				name => N('Ssh server, classical options'),
				pre => sub {
				  $sshd->{Port} and $o->{var}{wiz_port} = $sshd->{Port} or $o->{var}{wiz_port} = "22";
				},
				data => [
					 { label => N('Port number:'), val => \$o->{var}{wiz_port}, help => N('Default port is 22.') },
					],
				complete => sub {
				  if ($o->{var}{wiz_port} !~ /^\d+$/) { $::in->ask_warn(N('Error'), N('Port should be a number')); return 1; }
				},
				post => \&do_it,
#				next => 'config_step2',
				next => 'end',
			       },
	       config_step2 => {
				next => 'config_step3',
			       },
	       config_step3 => {

			       },
	       end => {
                       name => N('Congratulations') . "\n\n" . N('The wizard successfully configured your Ssh server.'),
                       no_back => 1,
                       end => 1,
                       next => 0
                      },
               error_end => {
                             name => N("Failed"),
                             data => [ { label => N("Please relaunch drakwizard, and try to change some parameters.") } ],
                             no_back => 1,
                             end => 1,
			     next => 0,
                            },
	       	      };

sub new {
  my ($class, $conf) = @_;
  bless {
         o   => $o,
        }, $class;
}

sub write_conf_restart_ssh {
  $sshd->write_conf($conf);
  if (services::is_service_running('sshd')) {
    services::restart('sshd')
    } else { services::start('sshd') }
}

sub auth_by_file() {
}

sub global_config() {
  $sshd->{Port} = $o->{var}{wiz_port};
  # force sshd protocol 2
  $sshd->{ListenAddress} and delete $sshd->{ListenAddress};
  $sshd->{Protocol} = "2";
#ListenAddress 0.0.0.0

  $sshd->{SyslogFacility} = "AUTH";
  $sshd->{LogLevel} = "INFO";

#$sshd->{LoginGraceTime} 120
#$sshd->{PermitRootLogin} no
#$sshd->{StrictModes} yes

#$sshd->{RSAAuthentication} yes
#$sshd->{PubkeyAuthentication} yes
    $sshd->{AuthorizedKeysFile} = ".ssh/authorized_keys2";
#$sshd->{PasswordAuthentication} no

#$sshd->{RhostsAuthentication} no
#$sshd->{IgnoreRhosts} yes
#$sshd->{PermitEmptyPasswords} no
#$sshd->{KeepAlive} yes


#$sshd->{X11Forwarding} no
#$sshd->{PrintMotd} yes
#$sshd->{PrintLastLog} no
#$sshd->{Compression} yes
#$sshd->{UsePrivilegeSeparation} yes

#$sshd->{MaxStartups} 10
#$sshd->{Subsystem} sftp /usr/libexec/sftp-server
#$sshd->{AllowUsers}
}

sub do_it {
  $::testing and return;
  # display a wait dialog box
  my $in = 'interactive'->vnew('su', 'Ssh');
  my $w = $in->wait_message(N("Ssh server"), N("Configuring your Ssh server..."));
  global_config();
  write_conf_restart_ssh();
  # remove wait message
  undef $w;
  check_started('sshd');
}

1;