package any; # $Id$

use diagnostics;
use strict;

#-######################################################################################
#- misc imports
#-######################################################################################
use common;
use detect_devices;
use partition_table;
use fs::proc_partitions;
use fs::type;
use lang;
use run_program;
use devices;
use modules;
use log;
use fs;
use c;

sub facesdir() {
    "$::prefix/usr/share/mga/faces/";
}
sub face2png {
    my ($face) = @_;
    facesdir() . $face . ".png";
}
sub facesnames() {
    my $dir = facesdir();
    my @l = grep { /^[A-Z]/ } all($dir);
    map { if_(/(.*)\.png/, $1) } (@l ? @l : all($dir));
}

sub addKdmIcon {
    my ($user, $icon) = @_;
    my $dest = "$::prefix/usr/share/faces/$user.png";
    eval { cp_af(facesdir() . $icon . ".png", $dest) } if $icon;
}

sub alloc_user_faces {
    my ($users) = @_;
    my @m = my @l = facesnames();
    foreach (grep { !$_->{icon} || $_->{icon} eq "automagic" } @$users) {
	$_->{auto_icon} = splice(@m, rand(@m), 1); #- known biased (see cookbook for better)
	log::l("auto_icon is $_->{auto_icon}");
	@m = @l unless @m;
    }
}

sub create_user {
    my ($u, $authentication) = @_;

    my @existing = stat("$::prefix/home/$u->{name}");

    if (!getpwnam($u->{name})) {
	my $uid = $u->{uid} || $existing[4];
	if ($uid && getpwuid($uid)) {
	    undef $uid; #- suggested uid already in use
	}
	my $gid = $u->{gid} || $existing[5] || int getgrnam($u->{name});
	if ($gid) {
	    if (getgrgid($gid)) {
		undef $gid if getgrgid($gid) ne $u->{name};
	    } else {
		run_program::rooted($::prefix, 'groupadd', '-g', $gid, $u->{name});
	    }
	} elsif ($u->{rename_from}) {
	    run_program::rooted($::prefix, 'groupmod', '-n', $u->{name}, $u->{rename_from});
	}

	require authentication;
	my $symlink_home_from = $u->{rename_from} && (getpwnam($u->{rename_from}))[7];
	run_program::raw({ root => $::prefix, sensitive_arguments => 1 },
			    ($u->{rename_from} ? 'usermod' : 'adduser'), 
			    '-p', authentication::user_crypted_passwd($u, $authentication),
			    if_($uid, '-u', $uid), if_($gid, '-g', $gid), 
			    if_($u->{realname}, '-c', $u->{realname}),
			    if_($u->{home}, '-d', $u->{home}, if_($u->{rename_from}, '-m')),
			    if_($u->{shell}, '-s', $u->{shell}), 
			    ($u->{rename_from}
			     ? ('-l', $u->{name}, $u->{rename_from})
			     : $u->{name}));
	symlink($u->{home}, $symlink_home_from) if $symlink_home_from;
	eval { run_program::rooted($::prefix, 'systemctl', 'try-restart', 'accounts-daemon.service') };
    }

    my (undef, undef, $uid, $gid, undef, undef, undef, $home) = getpwnam($u->{name});

    if (@existing && $::isInstall && ($uid != $existing[4] || $gid != $existing[5])) {
	log::l("chown'ing $home from $existing[4].$existing[5] to $uid.$gid");
	eval { common::chown_('recursive', $uid, $gid, "$::prefix$home") };
    }
}

sub add_users {
    my ($users, $authentication) = @_;

    alloc_user_faces($users);

    foreach (@$users) {
	create_user($_, $authentication);
	run_program::rooted($::prefix, "usermod", "-G", join(",", @{$_->{groups}}), $_->{name}) if !is_empty_array_ref($_->{groups});
	addKdmIcon($_->{name}, delete $_->{auto_icon} || $_->{icon});
    }
}

sub install_bootloader_pkgs {
    my ($do_pkgs, $b) = @_;

    bootloader::ensure_pkg_is_installed($do_pkgs, $b);
    install_acpi_pkgs($do_pkgs, $b);
}

sub install_acpi_pkgs {
    my ($do_pkgs, $b) = @_;

    my $acpi = bootloader::get_append_with_key($b, 'acpi');
    my $use_acpi = !member($acpi, 'off', 'ht');
    if ($use_acpi) {
	$do_pkgs->ensure_files_are_installed([ [ qw(acpi acpi) ], [ qw(acpid acpid) ] ], $::isInstall);
    }
    require services;
    services::set_status($_, $use_acpi, $::isInstall) foreach qw(acpid);
}

sub setupBootloaderBeforeStandalone {
    my ($do_pkgs, $b, $all_hds, $fstab) = @_;
    require keyboard;
    my $keyboard = keyboard::read_or_default();
    my $allow_fb = listlength(cat_("/proc/fb"));
    my $cmdline = cat_('/proc/cmdline');
    my $vga_fb = first($cmdline =~ /\bvga=(\S+)/);
    my $splash = $cmdline =~ /\bsplash\b/;
    my $quiet = $cmdline =~ /\bquiet\b/;
    setupBootloaderBefore($do_pkgs, $b, $all_hds, $fstab, $keyboard, $allow_fb, $vga_fb, $splash, $quiet);
}

sub setupBootloaderBefore {
    my ($do_pkgs, $bootloader, $all_hds, $fstab, $keyboard, $allow_fb, $vga_fb, $splash, $quiet) = @_;
    require bootloader;

    #- auto_install backward compatibility
    #- one should now use {message_text}
    if ($bootloader->{message} =~ m!^[^/]!) {
	$bootloader->{message_text} = delete $bootloader->{message};
    }

    if (cat_("/proc/cmdline") =~ /mem=nopentium/) {
	bootloader::set_append_with_key($bootloader, mem => 'nopentium');
    }
    if (cat_("/proc/cmdline") =~ /\b(pci)=(\S+)/) {
	bootloader::set_append_with_key($bootloader, $1, $2);
    }
    if (my ($acpi) = cat_("/proc/cmdline") =~ /\bacpi=(\w+)/) {
	if ($acpi eq 'ht') {
	    #- the user is using the default, which may not be the best
	    my $year = detect_devices::computer_info()->{BIOS_Year};
	    if ($year >= 2002) {
		log::l("forcing ACPI on recent bios ($year)");
		$acpi = '';
	    }
	}
	bootloader::set_append_with_key($bootloader, acpi => $acpi);
    }
    if (cat_("/proc/cmdline") =~ /\bnoapic/) {
	bootloader::set_append_simple($bootloader, 'noapic');
    }
    if (cat_("/proc/cmdline") =~ /\bnoresume/) {
	bootloader::set_append_simple($bootloader, 'noresume');
    } elsif (bootloader::get_append_simple($bootloader, 'noresume')) {
    } else {
	if (my ($biggest_swap) = sort { $b->{size} <=> $a->{size} } grep { isSwap($_) } @$fstab) {
	    my $biggest_swap_dev = fs::wild_device::from_part('', $biggest_swap);
	    bootloader::set_append_with_key($bootloader, resume => $biggest_swap_dev);
	    mkdir_p("$::prefix/etc/dracut.conf.d");
	    output("$::prefix/etc/dracut.conf.d/51-mageia-resume.conf", qq(add_device+=" $biggest_swap_dev "\n));
	}
    }

    #- set nokmsboot if a conflicting driver is configured.
    if (-x "$::prefix/sbin/display_driver_helper" && !run_program::rooted($::prefix, "/sbin/display_driver_helper", "--is-kms-allowed")) {
	bootloader::set_append_simple($bootloader, 'nokmsboot');
    }

    #- check for valid fb mode to enable a default boot with frame buffer.
    my $vga = $allow_fb && (!detect_devices::matching_desc__regexp('3D Rage LT') &&
                            !detect_devices::matching_desc__regexp('Rage Mobility [PL]') &&
                            !detect_devices::matching_desc__regexp('i740') &&
                            !detect_devices::matching_desc__regexp('Matrox') &&
                            !detect_devices::matching_desc__regexp('Tseng.*ET6\d00') &&
                            !detect_devices::matching_desc__regexp('SiS.*SG86C2.5') &&
                            !detect_devices::matching_desc__regexp('SiS.*559[78]') &&
                            !detect_devices::matching_desc__regexp('SiS.*300') &&
                            !detect_devices::matching_desc__regexp('SiS.*540') &&
                            !detect_devices::matching_desc__regexp('SiS.*6C?326') &&
                            !detect_devices::matching_desc__regexp('SiS.*6C?236') &&
                            !detect_devices::matching_desc__regexp('Voodoo [35]|Voodoo Banshee') && #- 3d acceleration seems to bug in fb mode
                            !detect_devices::matching_desc__regexp('828[14][05].* CGC') #- i810 & i845 now have FB support during install but we disable it afterwards
                               );
    my $force_vga = $allow_fb && (detect_devices::matching_desc__regexp('SiS.*630') || #- SiS 630 need frame buffer.
                                  detect_devices::matching_desc__regexp('GeForce.*Integrated') #- needed for fbdev driver (hack).
                                 );

    #- propose the default fb mode for kernel fb, if bootsplash is installed.
    my $need_fb = -e "$::prefix/usr/share/bootsplash/scripts/make-boot-splash";
    bootloader::suggest($bootloader, $all_hds,
                        vga_fb => ($force_vga || $vga && $need_fb) && $vga_fb,
                        splash => $splash,
                        quiet => $quiet);

    if (is_uefi()) {
        if (my @esp = grep { $_->{mntpoint} eq '/boot/EFI' } @$fstab) {
            $bootloader->{removable} = $esp[0]{is_removable};
        }
    } else {
        if (my $root_part = fs::get::root($fstab)) {
            $bootloader->{removable} = $root_part->{is_removable};
        }
    }
    $do_pkgs->remove('os-prober') if $bootloader->{removable} && $do_pkgs->is_installed('os-prober', '/usr/bin/os-prober');

    $bootloader->{keytable} ||= keyboard::keyboard2kmap($keyboard);
    log::l("setupBootloaderBefore end");
}

sub setupBootloader {
    my ($in, $b, $all_hds, $fstab, $security) = @_;

    require bootloader;
  general:
    {
	local $::Wizard_no_previous = 1 if $::isStandalone;
	setupBootloader__general($in, $b, $all_hds, $fstab, $security) or return 0;
    }
    setupBootloader__boot_bios_drive($in, $b, $all_hds->{hds}) or goto general;
    {
	local $::Wizard_finished = 1 if $::isStandalone;
	if (bootloader::main_method($b->{method}) eq 'grub2') {
            setupBootloader__grub2($in, $b, $all_hds, $fstab) or goto general;
	} else {
            setupBootloader__entries($in, $b, $all_hds, $fstab) or goto general;
	}
    }
    1;
}

sub setupBootloaderUntilInstalled {
    my ($in, $b, $all_hds, $fstab, $security) = @_;
    do {
        my $before = fs::fstab_to_string($all_hds);
        setupBootloader($in, $b, $all_hds, $fstab, $security) or $in->exit;
        if ($before ne fs::fstab_to_string($all_hds)) {
            #- ovitters: This fstab comparison was needed for optionally
            #- setting up /tmp using tmpfs. That code was removed. Not removing
            #- this code as I'm not sure if something still relies on this
            fs::write_fstab($all_hds);
        }
    } while !installBootloader($in, $b, $all_hds);
}

sub installBootloader {
    my ($in, $b, $all_hds) = @_;
    return if detect_devices::is_xbox();

    return 1 if arch() =~ /arm/;
   
    install_bootloader_pkgs($in->do_pkgs, $b);

  retry:
    eval { 
	my $_w = $in->wait_message(N("Please wait"), N("Bootloader installation in progress"));
	bootloader::install($b, $all_hds);
    };

    if (my $err = $@) {
	$err =~ /wizcancel/ and return;
	$err =~ s/^\w+ failed// or die;
	$err = formatError($err);
	while ($err =~ s/^Warning:.*//m) {}
	if (my ($dev) = $err =~ /^Reference:\s+disk\s+"(.*?)".*^Is the above disk an NT boot disk?/ms) {
	    if ($in->ask_yesorno('',
formatAlaTeX(N("LILO wants to assign a new Volume ID to drive %s.  However, changing
the Volume ID of a Windows NT, 2000, or XP boot disk is a fatal Windows error.
This caution does not apply to Windows 95 or 98, or to NT data disks.

Assign a new Volume ID?", $dev)))) {
		$b->{force_lilo_answer} = 'n';
	    } else {
		$b->{'static-bios-codes'} = 1;
	    }
	    goto retry;
	} else {
	    $in->ask_warn('', [ N("Installation of bootloader failed. The following error occurred:"), $err ]);
	    return;
	}
    }
    1;
}


sub setupBootloader_simple {
    my ($in, $b, $all_hds, $fstab, $security) = @_;
    my $hds = $all_hds->{hds};

    require bootloader;
    bootloader::ensafe_first_bios_drive($hds)
	|| $b->{bootUnsafe} or return 1; #- default is good enough
    
    if (arch() !~ /ia64/) {
	setupBootloader__mbr_or_not($in, $b, $hds, $fstab) or return 0;
    } else {
      general:
	setupBootloader__general($in, $b, $all_hds, $fstab, $security) or return 0;
    }
    setupBootloader__boot_bios_drive($in, $b, $hds) or goto general;
    1;
}


sub setupBootloader__boot_bios_drive {
    my ($in, $b, $hds) = @_;

    if (!is_empty_hash_ref($b->{bios})) {
	#- some bios mapping already there
	return 1;
    } elsif (bootloader::mixed_kind_of_disks($hds) && $b->{boot} =~ /\d$/) { #- on a partition
	# see below
    } else {
	return 1;
    }

    log::l("_ask_boot_bios_drive");
    my $hd = $in->ask_from_listf('', N("You decided to install the bootloader on a partition.
This implies you already have a bootloader on the hard disk drive you boot (eg: System Commander).

On which drive are you booting?"), \&partition_table::description, $hds) or return 0;
    log::l("mixed_kind_of_disks chosen $hd->{device}");
    $b->{first_hd_device} = "/dev/$hd->{device}";
    1;
}

sub _ask_mbr_or_not {
    my ($in, $default, @l) = @_;
    $in->ask_from_({ title => N("Bootloader Installation"),
                     interactive_help_id => 'setupBootloaderBeginner',
                 },
                   [
                       { label => N("Where do you want to install the bootloader?"), title => 1 },
                       { val => \$default, list => \@l, format => sub { $_[0][0] }, type => 'list' },
                   ]
               );
    $default;
}

sub setupBootloader__mbr_or_not {
    my ($in, $b, $hds, $fstab) = @_;

    log::l("setupBootloader__mbr_or_not");

	my $floppy = detect_devices::floppy();

	my @l = (
	    bootloader::ensafe_first_bios_drive($hds) ?
	         (map { [ N("First sector (MBR) of drive %s", partition_table::description($_)) => '/dev/' . $_->{device} ] } @$hds)
	      :
		 [ N("First sector of drive (MBR)") => '/dev/' . $hds->[0]{device} ],
	    
		 [ N("First sector of the root partition") => '/dev/' . fs::get::root($fstab, 'boot')->{device} ],
		     if_($floppy, 
                 [ N("On Floppy") => "/dev/$floppy" ],
		     ),
		 [ N("Skip") => '' ],
		);

	my $default = find { $_->[1] eq $b->{boot} } @l;
        if (!$::isInstall) {
            $default = _ask_mbr_or_not($in, $default, @l);
        }
	my $new_boot = $default->[1];

	#- remove bios mapping if the user changed the boot device
	delete $b->{bios} if $new_boot && $new_boot ne $b->{boot};
	$b->{boot} = $new_boot or return;
    1;
}

sub setupBootloader__general {
    my ($in, $b, $all_hds, $fstab, $_security) = @_;

    return if detect_devices::is_xbox();
    my @method_choices = bootloader::method_choices($all_hds);
    my $prev_force_acpi = my $force_acpi = bootloader::get_append_with_key($b, 'acpi') !~ /off|ht/;
    my $prev_enable_apic = my $enable_apic = !bootloader::get_append_simple($b, 'noapic');
    my $prev_enable_lapic = my $enable_lapic = !bootloader::get_append_simple($b, 'nolapic');
    my $prev_enable_smp = my $enable_smp = !bootloader::get_append_simple($b, 'nosmp');
    my $prev_boot = $b->{boot};
    my $prev_method = $b->{method};

    $b->{password2} ||= $b->{password} ||= '';
    $::Wizard_title = N("Boot Style Configuration");
    my (@boot_devices, %boot_devices);
    if (is_uefi()) {
	@boot_devices = 'ESP';
	%boot_devices = (ESP => N("EFI System Partition"));
    } else {
	foreach (bootloader::allowed_boot_parts($b, $all_hds)) {
	    my $dev = "/dev/$_->{device}";
	    push @boot_devices, $dev;
	    my $name = $_->{mntpoint} || $_->{info} || $_->{device_LABEL};
	    unless ($name) {
		$name = formatXiB($_->{size}*512) . " " if $_->{size};
		$name .= $_->{fs_type};
	    }
	    $boot_devices{$dev} = $name ? "$dev ($name)" : $dev;
	}
    }

    $in->ask_from_({ #messages => N("Bootloader main options"),
	title => N("Bootloader main options"),
	interactive_help_id => 'setupBootloader',
		   }, [
			 #title => N("Bootloader main options"),
            { label => N("Bootloader"), title => 1 },
            { label => N("Bootloader to use"), val => \$b->{method},
              list => \@method_choices, format => \&bootloader::method2text },
            { label => N("Boot device"), val => \$b->{boot}, list => \@boot_devices, allow_empty_list => 1,
              format => sub { $boot_devices{$_[0]} } },
            { label => N("Main options"), title => 1 },
            { label => N("Delay before booting default image"), val => \$b->{timeout} },
            { text => N("Enable ACPI"), val => \$force_acpi, type => 'bool', advanced => 1 },
            { text => N("Enable SMP"), val => \$enable_smp, type => 'bool', advanced => 1 },
            { text => N("Enable APIC"), val => \$enable_apic, type => 'bool', advanced => 1,
              disabled => sub { !$enable_lapic } }, 
            { text => N("Enable Local APIC"), val => \$enable_lapic, type => 'bool', advanced => 1 },
            { label => N("Security"), title => 1 },
	    { label => N("Password"), val => \$b->{password}, hidden => 1,
	      validate => sub { 
		  my $ok = $b->{password} eq $b->{password2}
                    or $in->ask_warn('', [ N("The passwords do not match"), N("Please try again") ]);
		  my $ok2 = !($b->{password} && $b->{method} eq 'grub-graphic')
                    or $in->ask_warn('', N("You cannot use a password with %s",
                                           bootloader::method2text($b->{method})));
		  $ok && $ok2;
	      } },
            { label => N("Password (again)"), val => \$b->{password2}, hidden => 1 },
        ]) or return 0;

    #- remove bios mapping if the user changed the boot device
    delete $b->{bios} if $b->{boot} ne $prev_boot;

    if ($b->{boot} =~ m!/dev/md\d+$!) {
	$b->{'raid-extra-boot'} = 'mbr';
    } else {
	delete $b->{'raid-extra-boot'} if $b->{'raid-extra-boot'} eq 'mbr';
    }

    bootloader::ensure_pkg_is_installed($in->do_pkgs, $b) or goto &setupBootloader__general;

    bootloader::suggest_message_text($b) if ! -e "$::prefix/boot/message-text"; #- in case we switch from grub to lilo

    if ($prev_force_acpi != $force_acpi) {
	bootloader::set_append_with_key($b, acpi => ($force_acpi ? '' : 'ht'));
    }

    if ($prev_enable_smp != $enable_smp) {
	($enable_smp ? \&bootloader::remove_append_simple : \&bootloader::set_append_simple)->($b, 'nosmp');
    }

    if ($prev_enable_apic != $enable_apic) {
	($enable_apic ? \&bootloader::remove_append_simple : \&bootloader::set_append_simple)->($b, 'noapic');
	($enable_apic ? \&bootloader::set_append_simple : \&bootloader::remove_append_simple)->($b, 'apic');
    }
    if ($prev_enable_lapic != $enable_lapic) {
	($enable_lapic ? \&bootloader::remove_append_simple : \&bootloader::set_append_simple)->($b, 'nolapic');
	($enable_lapic ? \&bootloader::set_append_simple : \&bootloader::remove_append_simple)->($b, 'lapic');
    }

    if (bootloader::main_method($prev_method) eq 'lilo' && 
	bootloader::main_method($b->{method}) eq 'grub') {
	log::l("switching for lilo to grub, ensure we don't read lilo.conf anymore");
	renamef("$::prefix/etc/lilo.conf", "$::prefix/etc/lilo.conf.unused");
    }
    if ($prev_method eq 'refind' && $b->{method} ne 'refind') {
        log::l("switching from rEFInd, ensure we don't detect refind as the active boot method");
        renamef("$::prefix/boot/refind_linux.conf", "$::prefix/boot/refind_linux.conf.unused");
    }
    if ($b->{method} eq 'refind') {
        if (bootloader::main_method($prev_method) eq 'grub2') {
            #- grub2 doesn't provide any entries we can use, so revert to the defaults
            %$b = ();
            setupBootloaderBeforeStandalone($in->do_pkgs, $b, $all_hds, $fstab);
            $b->{method} = 'refind';
            $b->{boot} = 'ESP';
            undef $b->{default};
        }
        setupBootloader__refind($in, $b, $fstab);
    } else {
        1;
    }
}

sub setupBootloader__refind {
    my ($in, $b, $fstab) = @_;

    my $already_in_refind  = -e "$::prefix/boot/EFI/EFI/refind/refind.conf";
    my $already_in_default = -e "$::prefix/boot/EFI/EFI/BOOT/refind.conf";
    my $already_installed  = $already_in_refind || $already_in_default;

    my $update_esp = !$already_installed;
    my $as_default = $already_in_default || $b->{removable};
    my $use_nvram = $b->{use_nvram};
    $use_nvram //= 1;
    $in->ask_from_(
	{
	    title => N("Bootloader Configuration"),
	    interactive_help_id => 'setupBootloader',
	},
	[
	    { text => N("Install or update rEFInd in the EFI system partition"),
	      val => \$update_esp, type => 'bool', disabled => sub { !$already_installed } },
	    { text => N("Install in /EFI/BOOT (removable device or workaround for some BIOSs)"),
	      val => \$as_default, type => 'bool', disabled => sub { !$update_esp } },
	    { text => N("Configure rEFInd to store its variables in the EFI NVRAM"),
	      val => \$use_nvram, type => 'bool' },
	]
    ) or return 0;

    if ($update_esp) {
	$b->{install_mode} = $as_default ? 'as_default' : 'as_refind';
    } else {
	$b->{install_mode} = $as_default ? 'no_install' : 'nvram_only';
    }
    $b->{use_nvram} = $use_nvram;
    if (my @esp = grep { $_->{mntpoint} eq '/boot/EFI' } @$fstab) {
	$b->{esp_device} = $esp[0]{real_device} || fs::wild_device::from_part('', $esp[0]);
    }
    1;
}

sub setupBootloader__entries {
    my ($in, $b, $all_hds, $fstab) = @_;

    require Xconfig::resolution_and_depth;

    my $Modify = sub {
	require network::network; #- to list network profiles
	my ($e) = @_;
	my $default = my $old_default = $e->{label} eq $b->{default};
	my $vga = Xconfig::resolution_and_depth::from_bios($e->{vga});
	my ($append, $netprofile) = bootloader::get_append_netprofile($e);

	my %hd_infos = map { $_->{device} => $_->{info} } fs::get::hds($all_hds);
	my %root_descr = map { 
	    my $info = delete $hd_infos{$_->{rootDevice}};
	    my $dev = "/dev/$_->{device}";
	    my $hint = $info || $_->{info} || $_->{device_LABEL};
	    my $info_ = $hint ? "$dev ($hint)" : $dev;
	    ($dev => $info_, fs::wild_device::from_part('', $_) => $info_);
	} @$fstab;

	my @l;
	if ($b->{method} eq 'refind') {
	    @l = (
		{ label => N("Label"), val => \$e->{label} },
		{ label => N("Append"), val => \$append },
		{ label => N("Video mode"), val => \$vga, list => [ '', Xconfig::resolution_and_depth::bios_vga_modes() ],
		  format => \&Xconfig::resolution_and_depth::to_string, advanced => 1 },
	    );
	} elsif ($e->{type} eq "image") {
	    @l = (
{ label => N("Image"), val => \$e->{kernel_or_dev}, list => [ map { "/boot/$_" } bootloader::installed_vmlinuz() ], not_edit => 0 },
{ label => N("Root"), val => \$e->{root}, list => [ map { fs::wild_device::from_part('', $_) } grep { !isSwap($_) } @$fstab ], format => sub { $root_descr{$_[0]} }  },
{ label => N("Append"), val => \$append },
  if_($e->{xen}, 
{ label => N("Xen append"), val => \$e->{xen_append} }
  ),
  if_($b->{password}, { label => N("Requires password to boot"), val => \$e->{lock}, type => "bool" }),
{ label => N("Video mode"), val => \$vga, list => [ '', Xconfig::resolution_and_depth::bios_vga_modes() ], format => \&Xconfig::resolution_and_depth::to_string, advanced => 1 },
{ label => N("Initrd"), val => \$e->{initrd}, list => [ map { if_(/^initrd/, "/boot/$_") } all("$::prefix/boot") ], not_edit => 0, advanced => 1 },
{ label => N("Network profile"), val => \$netprofile, list => [ sort(uniq('', $netprofile, network::network::netprofile_list())) ], advanced => 1 },
	    );
	} else {
	    @l = ( 
{ label => N("Root"), val => \$e->{kernel_or_dev}, list => [ map { "/dev/$_->{device}" } @$fstab, detect_devices::floppies() ] },
	    );
	}
	if ($b->{method} ne 'refind') {
	    @l = (
		  { label => N("Label"), val => \$e->{label} },
		  @l,
		  { text => N("Default"), val => \$default, type => 'bool' },
		 );
	}
	$in->ask_from_(
	    {
	     interactive_help_id => 'setupBootloaderAddEntry',
	     callbacks => {
	       complete => sub {
		   $e->{label} or $in->ask_warn('', N("Empty label not allowed")), return 1;
		   $e->{kernel_or_dev} or $in->ask_warn('', $e->{type} eq 'image' ? N("You must specify a kernel image") : N("You must specify a root partition")), return 1;
		   member(lc $e->{label}, map { lc $_->{label} } grep { $_ != $e } @{$b->{entries}}) and $in->ask_warn('', N("This label is already used")), return 1;
		   0;
	       } } }, \@l) or return;

	$b->{default} = $old_default || $default ? $default && $e->{label} : $b->{default};
	my $new_vga = ref($vga) ? $vga->{bios} : $vga;
	if ($new_vga ne $e->{vga}) {
	    $e->{vga} = $new_vga;
	    $e->{initrd} and bootloader::add_boot_splash($e->{initrd}, $e->{vga});
	}
	bootloader::set_append_netprofile($e, $append, $netprofile);
	bootloader::configure_entry($b, $e); #- hack to make sure initrd file are built.
	1;
    };

    my $Add = sub {
	my @labels = map { $_->{label} } @{$b->{entries}};
	my ($e, $prefix);
	if ($b->{method} eq 'refind') {
	    $e = { type => 'image',
		   kernel_or_dev => '/boot/vmlinuz',
		   root => '/dev/' . fs::get::root($fstab)->{device}, #- assume a good default.
		 };
	    $prefix = "linux";
	} elsif ($in->ask_from_list_('', N("Which type of entry do you want to add?"),
				     [ N_("Linux"), N_("Other OS (Windows...)") ]
				    ) eq "Linux") {
	    $e = { type => 'image',
		   root => '/dev/' . fs::get::root($fstab)->{device}, #- assume a good default.
		 };
	    $prefix = "linux";
	} else {
	    $e = { type => 'other' };
	    $prefix = "windows";
	}
	$e->{label} = $prefix;
	for (my $nb = 0; member($e->{label}, @labels); $nb++) {
	    $e->{label} = "$prefix-$nb";
	}
	$Modify->($e) or return;
	bootloader::add_entry($b, $e);
	$e;
    };

    my $Remove = sub {
	my ($e) = @_;
	delete $b->{default} if $b->{default} eq $e->{label};
	@{$b->{entries}} = grep { $_ != $e } @{$b->{entries}};
	1;
    };

    my $Up = sub {
	my ($e) = @_;
	my @entries = @{$b->{entries}};
	my ($index) = grep { $entries[$_]{label} eq $e->{label} } 0..$#entries;
	if ($index > 0) {
	  ($b->{entries}[$index - 1], $b->{entries}[$index]) = ($b->{entries}[$index], $b->{entries}[$index - 1]);
	}
	1;
    };
    
    my $Down = sub {
	my ($e) = @_;
	my @entries = @{$b->{entries}};
	my ($index) = grep { $entries[$_]{label} eq $e->{label} } 0..$#entries;
	if ($index < $#entries) {
	  ($b->{entries}[$index + 1], $b->{entries}[$index]) = ($b->{entries}[$index], $b->{entries}[$index + 1]);
	}
	1;
    };

    my @prev_entries = @{$b->{entries}};

    #- the rEFInd configuration file just provides alternative kernel command lines
    #- so we only want to display entries that relate to the default kernel.
    if ($b->{method} eq 'refind') {
	@{$b->{entries}} =
	    grep {
		my $pb = $_->{type} ne 'image' || $_->{kernel_or_dev} ne '/boot/vmlinuz';
		log::l("dropping bootloader entry $_->{label} because it is not needed by rEFInd") if $pb;
		!$pb;
	} @{$b->{entries}};
    }

    if ($in->ask_from__add_modify_remove(N("Bootloader Configuration"),
N("Here are the entries on your boot menu so far.
You can create additional entries or change the existing ones."), [ { 
        format => sub {
	    my ($e) = @_;
	    ref($e) ? 
	      ($b->{default} eq $e->{label} ? "  *  " : "     ") . "$e->{label} ($e->{kernel_or_dev})" : 
		translate($e);
	}, list => $b->{entries},
    } ], Add => $Add, Modify => $Modify, Remove => $Remove, Up => $Up, Down => $Down)) {
	1;
    } else {
	@{$b->{entries}} = @prev_entries;
	'';
    }
}

sub setupBootloader__grub2 {
    my ($in, $b, $_all_hds, $_fstab) = @_;

    # update entries (so that we can display their list below):
    my $error;
    # grub2-update can take many minutes on some systems (mga#18538)
    # FIXME: change the message to be more informative
    my $_w = $in->wait_message(N("Please wait"), N("Please wait"));
    run_program::rooted($::prefix, 'update-grub2', '2>', \$error) or die "update-grub2 failed: $error";
    undef $_w;

    # read grub2 auto-generated entries (instead of keeping eg: grub/lilo ones):
    my $b2 = bootloader::read_grub2();

    # get default parameters:
    my $append = $b->{perImageAppend} || bootloader::get_grub2_append($b2);
    my $default = $b2->{default};

    require Xconfig::resolution_and_depth;

    require network::network; #- to list network profiles
    my $vga = Xconfig::resolution_and_depth::from_bios($b->{default_vga});
    my $os_prober = $in->do_pkgs->is_installed('os-prober', '/usr/bin/os-prober');

    my $res = $in->ask_from_(
	{
	    title => N("Bootloader Configuration"),
	    interactive_help_id => 'setupBootloaderAddEntry',
	},
	[
	 { label => N("Default"), val => \$default,
	   list => [ map { $_->{label} } @{$b2->{entries}} ] },
	 { label => N("Append"), val => \$append },
	 { label => N("Video mode"), val => \$vga, list => [ '', Xconfig::resolution_and_depth::bios_vga_modes() ],
	   format => \&Xconfig::resolution_and_depth::to_string, advanced => 1 },
	 { text => N("Do not touch ESP or MBR"), val => \$b->{no_esp_or_mbr}, type => 'bool', advanced => 1,
	    validate => sub {
		$b->{no_esp_or_mbr} and $in->ask_warn(N("Warning"),
			     N("Not installing on ESP or MBR means that the installation is not bootable unless chain loaded from another OS!"));
		1;
	    },
	 },
	 { text => N("Probe Foreign OS"), val => \$os_prober, type => 'bool',
	   help => N("Unselect this option to stop grub2 scanning for other operating systems, which will prevent them from being included in the grub2 boot menu. The option may also be unselected after installation, removing the other operating systems from the grub2 boot menu, but reducing the time needed for installing kernel updates"),
	 },
	 if_(is_uefi(),
	    { text => N("Install in /EFI/BOOT (removable device or workaround for some BIOSs)"),
	      val => \$b->{removable}, type => 'bool' },
	 ),
	]);
    if ($res) {
	$b->{entries} = $b2->{entries};
	$b->{default} = $default;
	$b->{default_vga} = ref($vga) ? $vga->{bios} : $vga;
	$b->{perImageAppend} = $append;
	if ($os_prober) {
	    $in->do_pkgs->ensure_is_installed('os-prober', '/usr/bin/os-prober');
	} else {
	    $in->do_pkgs->remove('os-prober');
	}
	1;
    } else {
	'';
    }
}

sub get_session_file {
    my ($desktop) = @_;
    my $xsession_file = find {
      my %xsession = read_gnomekderc($_, 'Desktop Entry');
      $xsession{Name} =~ s/\s+//g;
      $xsession{Name} eq ${desktop};
    } glob("$::prefix/usr/share/xsessions/*.desktop");
    $xsession_file =~ s!\.[^.]+$!!;
    $xsession_file =~ s!.*/!!;
    $xsession_file ||= $desktop;
    return $xsession_file;
}

sub get_session_file_with_extension {
    return get_session_file(@_) . '.desktop';
}

sub available_dms() {
    my @l;
    foreach (glob("$::prefix/usr/share/X11/dm.d/*.conf")) {
        my %dm = getVarsFromSh($_);
        push @l, $dm{EXEC} if $dm{EXEC} && -x "$::prefix/$dm{EXEC}";
    }
    @l;
}

sub get_autologin() {
    my %desktop = getVarsFromSh("$::prefix/etc/sysconfig/desktop");
    my $gdm_file = "$::prefix/etc/X11/gdm/custom.conf";
    my $sddm_file = "$::prefix/etc/sddm.conf";
    my $lightdm_conffile = "$::prefix/etc/lightdm/lightdm.conf.d/50-mageia-autologin.conf";
    my $lxdm_conffile = "$::prefix/etc/lxdm/lxdm.conf";
    my $autologin_file = "$::prefix/etc/sysconfig/autologin";
    my $desktop = $desktop{DESKTOP} || first(sessions());
    my %desktop_to_dm = (
        GNOME => 'gdm',
        Plasma => 'sddm',
        Xfce => 'lightdm',
        LXDE => 'lxdm',
    );
    my $dm =
      basename(readlink("$::prefix/etc/systemd/system/display-manager.service")) =~ s/(.*)\.service/$1/r ||
      $desktop_to_dm{$desktop} ||
      basename(first(available_dms()));

    my $autologin_user;
    if ($dm eq "gdm") {
        my %conf = read_gnomekderc($gdm_file, 'daemon');
        $autologin_user = text2bool($conf{AutomaticLoginEnable}) && $conf{AutomaticLogin};
    } elsif ($dm eq "sddm") {
        my %conf = read_gnomekderc($sddm_file, 'Autologin');
        $autologin_user = $conf{User};
    } elsif ($dm eq "lightdm") {
        my %conf = read_gnomekderc($lightdm_conffile, 'Seat:*');
        $autologin_user = text2bool($conf{'#dummy-autologin'}) && $conf{"autologin-user"};
    } elsif ($dm eq "lxdm") {
        my %conf = read_gnomekderc($lxdm_conffile, 'base');
        $autologin_user = $conf{autologin};
        $autologin_user =~ s/^.//;
    } else {
        my %conf = getVarsFromSh($autologin_file);
        $autologin_user = text2bool($conf{AUTOLOGIN}) && $conf{USER};
    }

    { user => $autologin_user, desktop => $desktop, dm => $dm };
}

sub is_standalone_autologin_needed {
    my ($dm) = @_;
    return member($dm, qw(slim xdm));
}

sub set_autologin {
    my ($do_pkgs, $autologin, $o_auto) = @_;
    log::l("set_autologin $autologin->{user} $autologin->{desktop}");
    my $do_autologin = bool2text($autologin->{user});

    $autologin->{dm} ||= 'xdm';
    $do_pkgs->ensure_is_installed($autologin->{dm}, undef, $o_auto)
      or return;
    if ($autologin->{user} && is_standalone_autologin_needed($autologin->{dm})) {
        $do_pkgs->ensure_is_installed('autologin', '/usr/bin/startx.autologin', $o_auto)
          or return;
    }

    #- Configure SDDM
    my $sddm_conffile = "$::prefix/etc/sddm.conf";
    eval { common::update_gnomekderc_no_create($sddm_conffile, 'Autologin' => (
	Session => get_session_file_with_extension($autologin->{desktop}),
	User => $autologin->{user},
    )) } if -e $sddm_conffile;

    #- Configure GDM
    my $gdm_conffile = "$::prefix/etc/X11/gdm/custom.conf";
    eval { update_gnomekderc($gdm_conffile, daemon => (
	AutomaticLoginEnable => $do_autologin,
	AutomaticLogin => $autologin->{user},
    )) } if -e $gdm_conffile;

    #- Configure LIGHTDM
    my $lightdm_conffile = "$::prefix/etc/lightdm/lightdm.conf.d/50-mageia-autologin.conf";
    eval { update_gnomekderc($lightdm_conffile, 'Seat:*' => (
        '#dummy-autologin' => $do_autologin,
        'autologin-user' => $autologin->{user},
        'autologin-session' => get_session_file($autologin->{desktop}),
    )) } if -e $lightdm_conffile;

    #- Configure LXDM
    my $lxdm_conffile = "$::prefix/etc/lxdm/lxdm.conf";
    eval { update_gnomekderc($lxdm_conffile, 'base' => (
	'autologin' => $autologin->{user} ? '@' . $autologin->{user} : ''
    ));
    if ($autologin->{user} && $autologin->{desktop} && !member($autologin->{desktop}, qw(default failsafe))) {
	update_gnomekderc($lxdm_conffile, $autologin->{user} => (
	'user' => $autologin->{user},
	'session' => get_session_file($autologin->{desktop}),
    )) } } if -e $lxdm_conffile;

    #- Configure XDM
    my $xdm_autologin_cfg = "$::prefix/etc/sysconfig/autologin";
    if (is_standalone_autologin_needed($autologin->{dm})) {
	setVarsInShMode($xdm_autologin_cfg, 0644,
			{ USER => $autologin->{user}, AUTOLOGIN => bool2yesno($autologin->{user}), EXEC => '/usr/bin/startx.autologin' });
    } else {
	unlink $xdm_autologin_cfg;
    }

    my $sys_conffile = "$::prefix/etc/sysconfig/desktop";
    my %desktop = getVarsFromSh($sys_conffile);
    $desktop{DESKTOP} = $autologin->{desktop};
    $desktop{DISPLAYMANAGER} = $autologin->{dm};
    setVarsInSh($sys_conffile, \%desktop);
    symlinkf("/usr/lib/systemd/system/$autologin->{dm}.service", "$::prefix/etc/systemd/system/display-manager.service");

    if ($autologin->{user}) {
	my $home = (getpwnam($autologin->{user}))[7];
	set_window_manager($home, $autologin->{desktop});
    }
}
sub set_window_manager {
    my ($home, $wm) = @_;
    log::l("set_window_manager $home $wm");
    my $p_home = "$::prefix$home";

    #- for KDM/GDM
    my $wm_number = sessions_with_order()->{$wm} || '';
    update_gnomekderc("$p_home/.dmrc", 'Desktop', Session => "$wm_number$wm");
    my $user = find { $home eq $_->[7] } list_passwd();
    chown($user->[2], $user->[3], "$p_home/.dmrc");
    chmod(0644, "$p_home/.dmrc");

    #- for startx/autologin
    {
	my %l = getVarsFromSh("$p_home/.desktop");
	$l{DESKTOP} = $wm;
	setVarsInSh("$p_home/.desktop", \%l);
    }
}

sub rotate_log {
    my ($f) = @_;
    if (-e $f) {
	my $i = 1;
	for (; -e "$f$i" || -e "$f$i.gz"; $i++) {}
	rename $f, "$f$i";
    }
}
sub rotate_logs {
    my ($prefix) = @_;
    rotate_log("$prefix/root/drakx/$_") foreach qw(stage1.log ddebug.log install.log updates.log);
}

sub writeandclean_ldsoconf {
    my ($prefix) = @_;
    my $file = "$prefix/etc/ld.so.conf";
    my @l = chomp_(cat_($file));

    my @default = ('/lib', '/usr/lib'); #- no need to have /lib and /usr/lib in ld.so.conf
    my @suggest = ('/usr/lib/qt3/lib'); #- needed for upgrade where package renaming can cause this to disappear

    if (arch() =~ /x86_64/) {
	@default = map { $_, $_ . '64' } @default;
	@suggest = map { $_, $_ . '64' } @suggest;
    }
    push @l, grep { -d "$::prefix$_" } @suggest;
    @l = difference2(\@l, \@default);

    log::l("writeandclean_ldsoconf");
    output($file, map { "$_\n" } uniq(@l));
}

sub shells() {
    grep { -x "$::prefix$_" } chomp_(cat_("$::prefix/etc/shells"));
}

sub inspect {
    my ($part, $o_prefix, $b_rw) = @_;

    isMountableRW($part) || !$b_rw && isOtherAvailableFS($part) or return;

    my $dir = $::isInstall ? "/tmp/inspect_tmp_dir" : "/root/.inspect_tmp_dir";

    if ($part->{isMounted}) {
	$dir = ($o_prefix || '') . $part->{mntpoint};
    } elsif ($part->{notFormatted} && !$part->{isFormatted}) {
	$dir = '';
    } else {
	mkdir $dir, 0700;
	eval { fs::mount::mount(fs::wild_device::from_part('', $part), $dir, $part->{fs_type}, !$b_rw) };
	$@ and return;
    }
    my $h = before_leaving {
	if (!$part->{isMounted} && $dir) {
	    fs::mount::umount($dir);
	    unlink($dir);
	}
    };
    $h->{dir} = $dir;
    $h;
}

sub ask_user {
    my ($in, $users, $security, %options) = @_;

    ask_user_and_root($in, undef, $users, $security, %options);
}

sub is_xguest_installed() {
    -e "$::prefix/etc/security/namespace.d/xguest.conf";
}

sub ask_user_and_root {
    my ($in, $superuser, $users, $security, %options) = @_;

    my $xguest = is_xguest_installed();

    $options{needauser} ||= $security >= 3;

    my @icons = facesnames();
    my @suggested_names = $::isInstall ? do {
	my @l = grep { !/^\./ && $_ ne 'lost+found' && -d "$::prefix/home/$_" } all("$::prefix/home");
	grep { ! defined getpwnam($_) } @l;
    } : ();

    my %high_security_groups = (
        xgrp => N("access to X programs"),
	rpm => N("access to rpm tools"),
	wheel => N("allow \"su\""),
	adm => N("access to administrative files"),
	ntools => N("access to network tools"),
	ctools => N("access to compilation tools"),
    );

    my $u = {};
    $u->{password2} ||= $u->{password} ||= '';
    $u->{shell} ||= '/bin/bash';
    my $names = @$users ? N("(already added %s)", join(", ", map { $_->{realname} || $_->{name} } @$users)) : '';
    
    my %groups;

    require authentication;
    my $validate_name = sub {
	$u->{name} or $in->ask_warn('', N("Please give a user name")), return;
        $u->{name} =~ /^[a-z]+[a-z0-9_-]*$/ or $in->ask_warn('', N("The user name must start with a lower case letter followed by only lower cased letters, numbers, `-' and `_'")), return;
        length($u->{name}) <= 32 or $in->ask_warn('', N("The user name is too long")), return;
        defined getpwnam($u->{name}) || member($u->{name}, map { $_->{name} } @$users) and $in->ask_warn('', N("This user name has already been added")), return;
	'ok';
    };
    my $validate_uid_gid = sub {
	my ($field) = @_;
	my $id = $u->{$field} or return 'ok';
	my $name = $field eq 'uid' ? N("User ID") : N("Group ID");
	$id =~ /^\d+$/ or $in->ask_warn('', N("%s must be a number", $name)), return;
	$id >= 1000 or $in->ask_yesorno('', N("%s should be above 1000. Accept anyway?", $name)) or return;
	'ok';
    };
    my $ret = $in->ask_from_(
        { title => N("User management"),
          interactive_help_id => 'addUser',
	  if_($::isInstall && $superuser, cancel => ''),
        }, [ 
	      $superuser ? (
	  if_(0,
	  { text => N("Enable guest account"), val => \$xguest, type => 'bool', advanced => 1 },
	  ),
	  { label => N("Set administrator (root) password"), title => 1 },
	  { label => N("Password"), val => \$superuser->{password},  hidden => 1, alignment => 'right', weakness_check => 1,
	    focus => sub { 1 },
	    validate => sub { authentication::check_given_password($in, $superuser, 2 * $security) } },
	  { label => N("Password (again)"), val => \$superuser->{password2}, hidden => 1, alignment => 'right' },
              ) : (),
	  { label => N("Enter a user"), title => 1 }, if_($names, { label => $names }),
           if_($security <= 3 && !$options{noicons} && @icons,
	  { label => N("Icon"), val => \ ($u->{icon} ||= 'default'), list => \@icons, icon2f => \&face2png,
            alignment => 'right', format => \&translate },
           ),
	  { label => N("Real name"), val => \$u->{realname}, alignment => 'right', focus_out => sub {
		$u->{name} ||= lc(Locale::gettext::iconv($u->{realname}, "utf-8", "ascii//TRANSLIT"));
                $u->{name} =~ s/[^a-zA-Z0-9_-]//g; # drop any character that would break login program
	    },
	    focus => sub { !$superuser },
          },

          { label => N("Login name"), val => \$u->{name}, list => \@suggested_names, alignment => 'right',
            not_edit => 0, validate => $validate_name },
          { label => N("Password"),val => \$u->{password}, hidden => 1, alignment => 'right', weakness_check => 1,
	    validate => sub { authentication::check_given_password($in, $u, $security > 3 ? 6 : 0) } },
          { label => N("Password (again)"), val => \$u->{password2}, hidden => 1, alignment => 'right' },
          { label => N("Shell"), val => \$u->{shell}, list => [ shells() ], advanced => 1 },
	  { label => N("User ID"), val => \$u->{uid}, advanced => 1, validate => sub { $validate_uid_gid->('uid') } },
	  { label => N("Group ID"), val => \$u->{gid}, advanced => 1, validate => sub { $validate_uid_gid->('gid') } },
	    if_($security >= 1,
		{ label => N("Extra Groups:"), advanced => 1, title => 1 },
                map {
                    { label => $_, val => \$groups{$_}, text => $high_security_groups{$_}, type => 'bool', advanced => 1 };
                } keys %high_security_groups,
               ),
	  ],
    );

    if ($xguest && !is_xguest_installed()) {
        $in->do_pkgs->ensure_is_installed('xguest', '/etc/security/namespace.d/xguest.conf');
    } elsif (!$xguest && is_xguest_installed()) {
        $in->do_pkgs->remove('xguest') or return;
    }

    $u->{groups} = [ grep { $groups{$_} } keys %groups ];

    push @$users, $u if $u->{name};

    $ret && $u;
}

sub sessions() {
    my $old = chdir('$::prefix/usr/share/xsessions/');
    my @l = map { s/.desktop$//; $_ } glob("*.desktop");
    chdir($old);
    @l;
}
sub sessions_with_order() {
    my %h = map { /(.*)=(.*)/ } split(' ', run_program::rooted_get_stdout($::prefix, '/usr/sbin/chksession', '-L'));
    \%h;
}

sub urpmi_add_all_media {
    my ($in, $o_previous_release) = @_;

    my $binary = find { whereis_binary($_, $::prefix) } if_(check_for_xserver(), 'gurpmi.addmedia'), 'urpmi.addmedia';
    if (!$binary) {
	log::l("urpmi.addmedia not found!");
	return;
    }
    
    #- configure urpmi media if network is up
    require network::tools;
    if (!network::tools::has_network_connection()) {
	log::l("no network connexion!");
	return;
    }
    # First remove all media:
    run_program::rooted($::prefix, 'urpmi.removemedia', '-a');
    # Then add online media:
    my $wait;
    my @options = ('--distrib', '--mirrorlist', '$MIRRORLIST');
    if ($binary eq 'urpmi.addmedia') {
	$wait = $in->wait_message(N("Please wait"), N("Please wait, adding media..."));
    } elsif ($in->isa('interactive::gtk')) {
	push @options, '--silent-success';
	mygtk3::flush();
    }

    my $reason = join(',', $o_previous_release ? 
      ('reason=upgrade', 'upgrade_by=drakx', "upgrade_from=$o_previous_release->{version}") :
       'reason=install');
    log::l("URPMI_ADDMEDIA_REASON $reason");
    local $ENV{URPMI_ADDMEDIA_REASON} = $reason;

    my $log_file = '/root/drakx/updates.log';
    my $val = run_program::rooted($::prefix, $binary, '>>', $log_file, '2>>', $log_file, @options);

    undef $wait;
    $val;
}

sub format_wm {
    my ($wm) = @_;
    return {
	    cinnamon => 'Cinnamon',
	    enlightenment => 'Enlightenment',
	    'gnome-classic' => 'GNOME Classic',
	    gnome => 'GNOME',
	    i3 => 'I3',
	    'i3-with-shmlog' => 'I3 with shmlog',
	    lxqt => 'LxQt',
	    mate => 'Mate',
	    openbox => 'OpenBox',
	    'plasma-mediacenter' => 'Plasma Mediacenter',
	    '01plasma' => 'Plasma',
	    sugar => 'Sugar',
	    xfce => 'Xfce',
    }->{$wm};
}

sub autologin {
    my ($o, $in) = @_;

    my @wm = sessions();
    my @users = map { $_->{name} } @{$o->{users} || []};

    my $kde_desktop = find { member($_, 'KDE', 'KDE4') } @wm;
    if ($kde_desktop && @users == 1 && $o->{meta_class} eq 'desktop') {
	$o->{desktop} = $kde_desktop;
	$o->{autologin} = $users[0];
    } elsif (@wm > 1 && @users && !$o->{authentication}{NIS} && $o->{security} <= 2) {
	my $use_autologin = @users == 1;

	$in->ask_from_(
		       { title => N("Autologin"),
			 messages => N("I can set up your computer to automatically log on one user.") },
		       [ { text => N("Use this feature"), val => \$use_autologin, type => 'bool' },
			 { label => N("Choose the default user:"), val => \$o->{autologin}, list => \@users, disabled => sub { !$use_autologin } },
			 { label => N("Choose the window manager to run:"), val => \$o->{desktop}, list => \@wm, disabled => sub { !$use_autologin }, format => \&format_wm } ]
		      );
	delete $o->{autologin} if !$use_autologin;
    } else {
	delete $o->{autologin};
    }
}

sub display_release_notes {
    my ($in, $release_notes) = @_;
    if (!$in->isa('interactive::gtk')) {
        $in->ask_from_({ title => N("Release Notes"), 
                        messages => $release_notes,
                    }, [ {} ]);
        return;
    }

    require Gtk3::WebKit2;
    Gtk3::WebKit2->import;
    require ugtk3;
    ugtk3->import(':all');
    require mygtk3;
    mygtk3->import('gtknew');
    my $view = gtknew('WebKit2_WebView', no_popup_menu => 1);
    $view->load_html($release_notes, '/');
                               
    my $w = ugtk3->new(N("Release Notes"), transient => $::main_window, modal => 1, pop_it => 1);
    gtkadd($w->{rwindow},
           gtkpack_(Gtk3::VBox->new,
                    1, create_scrolled_window(ugtk3::gtkset_border_width($view, 5),
                                              [ 'never', 'automatic' ],
                                          ),
                    0, gtkpack(create_hbox('end'),
                               gtknew('Button', text => N("Close"),
                                      clicked => sub { Gtk3->main_quit })
                           ),
                ),
       );
    mygtk3::set_main_window_size($w->{rwindow});
    $w->{real_window}->grab_focus;
    $w->{real_window}->show_all;
    $w->main;
    return;
}

sub get_release_notes {
    my ($in) = @_;
    my $ext = $in->isa('interactive::gtk') ? '.html' : '.txt';
    my $separator = $in->isa('interactive::gtk') ? "\n\n" : '';

    my $release_notes = join($separator, grep { $_ } map {
        if ($::isInstall) {
            my $f = install::any::getFile_($::o->{stage2_phys_medium}, $_);
            $f && cat__($f);
        } else {
            my $file = $_;
            my $d = find { -e "$_/$file" } glob_("/usr/share/doc/*-release-*");
            $d && cat_("$d/$file");
        }
    } "release-notes$ext", 'release-notes.' . $ext);

    # we do not handle links:
    $release_notes =~ s!<a href=".*?">(.*?)</a>!$1!g;
    $release_notes;
}

sub run_display_release_notes {
    my ($release_notes) = @_;
    output('/tmp/release_notes.html', $release_notes);
    local $ENV{LC_ALL} = $::o->{locale}{lang} || 'C';
    run_program::raw({ detach => 1 }, '/usr/bin/display_release_notes.pl');
}

sub acceptLicense {
    my ($in) = @_;
    require messages;

    my $release_notes = get_release_notes($in);

    my $r = $::testing ? 'Accept' : 'Refuse';

    $in->ask_from_({ title => N("License agreement"), 
		    focus_first => 1,
		     cancel => N("Quit"),
		     messages => formatAlaTeX(messages::main_license()),
		     interactive_help_id => 'acceptLicense',
		     callbacks => { ok_disabled => sub { $r eq 'Refuse' } },
		   },

		   [
                       { label => N("Do you accept this license ?"), title => 1, alignment => 'right' },
                       { list => [ N_("Accept"), N_("Refuse") ], val => \$r, type => 'list', alignment => 'right',
                         format => sub { translate($_[0]) } },
                       if_($release_notes,
                           { clicked => sub { run_display_release_notes($release_notes) }, do_not_expand => 1,
                             val => \ (my $_t1 = N("Release Notes")), install_button => 1, no_indent => 1 }
                       ), 
                   ])
      or reboot();
}

sub reboot() {
    if ($::isInstall) {
	my $o = $::o;
	install::media::umount_phys_medium($o->{stage2_phys_medium});
	install::media::openCdromTray($o->{stage2_phys_medium}{device}) if !detect_devices::is_xbox() && $o->{method} eq 'cdrom';
	$o->exit;
    } else {
	# when refusing license in finish-install:
	exec("/bin/reboot");
    }
}

sub selectLanguage_install {
    my ($in, $locale) = @_;

    my $common = { 
		   title => N("Please choose a language to use"),
		   interactive_help_id => 'selectLanguage' };

    my $lang = $locale->{lang};
    my $langs = $locale->{langs} ||= {};
    my $using_images = $in->isa('interactive::gtk') && !$::o->{vga16};
	
    my %name2l = map { lang::l2name($_) => $_ } lang::list_langs();
    my $listval2val = sub { $_[0] =~ /\|(.*)/ ? $1 : $_[0] };

    #- since gtk version will use images (function image2f) we need to sort differently
    my $sort_func = $using_images ? \&lang::l2transliterated : \&lang::l2name;
    my @langs = sort { $sort_func->($a) cmp $sort_func->($b) } lang::list_langs();

    if (@langs > 15) {
	my $add_location = sub {
	    my ($l) = @_;
	    map { "$_|$l" } lang::l2location($l);
	};
	@langs = map { $add_location->($_) } @langs;

	#- to create the default value, use the first location for that value :/
	$lang = first($add_location->($lang));
    }

    my $non_utf8 = 0;
    add2hash($common, { cancel => '',
			focus_first => 1,
			advanced_messages => formatAlaTeX(N("%s can support multiple languages. Select
the languages you would like to install. They will be available
when your installation is complete and you restart your system.", N("Mageia"))),
			advanced_label => N("Multiple languages"),
			advanced_title => N("Select Additional Languages"),
		    });
			    
    $in->ask_from_($common, [
	{ val => \$lang, separator => '|', 
	  if_($using_images, image2f => sub { $name2l{$_[0]} =~ /^[a-z]/ && "langs/lang-$name2l{$_[0]}" }),
	  format => sub { $_[0] =~ /(.*\|)(.*)/ ? $1 . lang::l2name($2) : lang::l2name($_[0]) },
	  list => \@langs, sort => !$in->isa('interactive::gtk'),
	  focus_out => sub { $langs->{$listval2val->($lang)} = 1 } },
	  { val => \$non_utf8, type => 'bool', text => N("Old compatibility (non UTF-8) encoding"), advanced => 1 },
	  { val => \$langs->{all}, type => 'bool', text => N("All languages"), advanced => 1 },
	map {
	    { val => \$langs->{$_->[0]}, type => 'bool', disabled => sub { $langs->{all} },
	      text => $_->[1], advanced => 1,
	      image => "langs/lang-$_->[0]",
	  };
	} sort { $a->[1] cmp $b->[1] } map { [ $_, $sort_func->($_) ] } lang::list_langs(),
    ]) or return;
    $locale->{utf8} = !$non_utf8;
    %$langs = grep_each { $::b } %$langs;  #- clean hash
    $langs->{$listval2val->($lang)} = 1;
	
    #- convert to the default locale for asked language
    $locale->{lang} = $listval2val->($lang);
    lang::lang_changed($locale);
}

sub selectLanguage_standalone {
    my ($in, $locale) = @_;

    my $old_lang = $locale->{lang};
    my $common = { messages => N("Please choose a language to use"),
		   title => N("Language choice"),
		   interactive_help_id => 'selectLanguage' };

    my @langs = sort { lang::l2name($a) cmp lang::l2name($b) } lang::list_langs(exclude_non_installed => 1);
    my $non_utf8 = !$locale->{utf8};
    $in->ask_from_($common, [ 
	{ val => \$locale->{lang}, type => 'list',
	  format => sub { lang::l2name($_[0]) }, list => \@langs, allow_empty_list => 1 },
	{ val => \$non_utf8, type => 'bool', text => N("Old compatibility (non UTF-8) encoding"), advanced => 1 },
    ]);
    $locale->{utf8} = !$non_utf8;
    lang::set($locale);
    c::init_setlocale() if $in->isa('interactive::gtk');
    lang::lang_changed($locale) if $old_lang ne $locale->{lang};
}

sub selectLanguage_and_more_standalone {
    my ($in, $locale) = @_;
    eval {
	local $::isWizard = 1;
      language:
	# keep around previous settings so that selectLanguage can keep UTF-8 flag:
	local $::Wizard_no_previous = 1;
	selectLanguage_standalone($in, $locale);
	undef $::Wizard_no_previous;
	selectCountry($in, $locale) or goto language;
    };
    if ($@) {
	if ($@ !~ /wizcancel/) {
	    die;
	} else {
	    $in->exit(0);
	}
    }
}

sub selectCountry {
    my ($in, $locale) = @_;

    my $country = $locale->{country};
    my $country2locales = lang::countries_to_locales(exclude_non_installed => !$::isInstall);
    my @countries = keys %$country2locales;
    my @best = grep {
	find { 
	    $_->{main} eq lang::locale_to_main_locale($locale->{lang});
	} @{$country2locales->{$_}};
    } @countries;
    @best == 1 and @best = ();

    my $other = !member($country, @best);
    my $ext_country = $country;
    $other and @best = ();

    $in->ask_from_(
		  { title => N("Country / Region"), 
		    messages => N("Please choose your country"),
		    interactive_help_id => 'selectCountry.html',
		    if_(@best, advanced_messages => N("Here is the full list of available countries")),
		    advanced_label => @best ? N("Other Countries") : N("Advanced"),
		  },
		  [ if_(@best, { val => \$country, type => 'list', format => \&lang::c2name,
				 list => \@best, sort => 1, changed => sub { $other = 0 }  }),
		    { val => \$ext_country, type => 'list', format => \&lang::c2name,
		      list => [ @countries ], advanced => scalar(@best), changed => sub { $other = 1 } },
		    { val => \$locale->{IM}, type => 'combo', label => N("Input method:"), 
		      sort => 0, separator => '|',
		      list => [ '', lang::get_ims($locale->{lang}) ], 
		      format => sub { $_[0] ? uc($_[0] =~ /(.*)\+(.*)/ ? "$1|$1+$2" : $_[0]) : N("None") },
		      advanced => !$locale->{IM},
		    },
		]) or return;

    $locale->{country} = $other || !@best ? $ext_country : $country;
}

sub set_login_serial_console {
    my ($port, $speed) = @_;

    my $line = "s$port:12345:respawn:/sbin/agetty ttyS$port $speed ansi\n";
    substInFile { s/^s$port:.*//; $_ = $line if eof } "$::prefix/etc/inittab";
}

sub header { "
********************************************************************************
* $_[0]
********************************************************************************";
}

sub fdisk() {
    my @devs = grep { !m!^/dev/(loop|ram)\d+! && !/\d$/ } map { "/dev/$_->{dev}" } fs::proc_partitions::read_raw();
    `fdisk -l @devs`;

}

sub report_bug {
    my (@other) = @_;

    join '', map { chomp; "$_\n" }
      header("lspci"), detect_devices::stringlist(),
      header("hid_devices"), (map { sprintf("%-16s: %s", $_->{driver} || "unknown", $_->{description}) } c::hid_probe()),
      header("input devices"), cat_("/proc/bus/input/devices"),
      header("libinput devices"), `libinput list-devices`,
      header("pci_devices"), cat_("/proc/bus/pci/devices"),
      header("dmidecode"), arch() =~ /86/ ? `dmidecode` : (),
      header("fdisk"), fdisk(),
      header("scsi"), cat_("/proc/scsi/scsi"),
      header("/sys/bus/scsi/devices"), -d '/sys/bus/scsi/devices' ? `ls -l /sys/bus/scsi/devices` : (),
      header("lsmod"), cat_("/proc/modules"),
      header("cmdline"), cat_("/proc/cmdline"),
      header("pcmcia: stab"), cat_("$::prefix/var/lib/pcmcia/stab") || cat_("$::prefix/var/run/stab"),
      header("usb"), cat_("/sys/kernel/debug/usb/devices"),
      header("partitions"), cat_("/proc/partitions"),
      header("PVs"), `pvs`,
      header("VGs"), `vgs`,
      header("LVs"), `lvs`,
      header("dmsetup info"), `dmsetup info`,
      header("dmsetup table"), `dmsetup table`,
      header("dmsetup ls"), `dmsetup ls`,
      header("cpuinfo"), cat_("/proc/cpuinfo"),
      header("syslog"), cat_("/tmp/syslog") || cat_("$::prefix/var/log/syslog") || `journalctl -q -D $::prefix/var/log/journal -b`,
      header("Xorg.log"), cat_("/var/log/Xorg.0.log"),
      header("monitor_full_edid"), monitor_full_edid(),
      header("stage1.log"), cat_("/tmp/stage1.log") || cat_("$::prefix/root/drakx/stage1.log"),
      header("ddebug.log"), cat_("/tmp/ddebug.log") || cat_("$::prefix/root/drakx/ddebug.log"),
      header("install.log"), cat_("$::prefix/root/drakx/install.log"),
      header("draklive-install.log"), cat_("/tmp/draklive-install.log") || cat_("$::prefix/root/drakx/draklive-install.log"),
      header("fstab"), cat_("$::prefix/etc/fstab"),
      header("modprobe.conf"), cat_("$::prefix/etc/modprobe.conf"),
      header("lilo.conf"), cat_("$::prefix/etc/lilo.conf"),
      header("grub: menu.lst"), join('', map { s/^(\s*password)\s+(.*)/$1 xxx/; $_ } cat_("$::prefix/boot/grub/menu.lst")),
      header("grub: install.sh"), cat_("$::prefix/boot/grub/install.sh"),
      header("grub: device.map"), cat_("$::prefix/boot/grub/device.map"),
      header("grub2: grub"), cat_("$::prefix/etc/default/grub"),
      header("grub2: grub.cfg"), join('', map { s/^(\s*password_pbkdf2)\s+grub.pbkdf2.*/$1 xxx/; $_ } cat_("$::prefix/boot/grub2/grub.cfg")),
      header("grub2: install.sh"), cat_("$::prefix/boot/grub2/install.sh"),
      header("xorg.conf"), cat_("$::prefix/etc/X11/xorg.conf"),
      header("urpmi.cfg"), cat_("$::prefix/etc/urpmi/urpmi.cfg"),
      header("modprobe.preload"), cat_("$::prefix/etc/modprobe.preload"),
      header("sysconfig/i18n"), cat_("$::prefix/etc/sysconfig/i18n"),
      header("locale.conf"), cat_("$::prefix/etc/locale.conf"),
      header("/proc/iomem"), cat_("/proc/iomem"),
      header("/proc/ioport"), cat_("/proc/ioports"),
      map_index { even($::i) ? header($_) : $_ } @other;
}

sub fix_broken_alternatives {
    my ($force_default) = @_;
    #- fix bad update-alternatives that may occurs after upgrade (and sometimes for install too).
    -d "$::prefix/etc/alternatives" or return;

    foreach (all("$::prefix/etc/alternatives")) {
	if ($force_default) {
	    log::l("setting alternative $_");
	} else {
	    next if run_program::rooted($::prefix, 'test', '-e', "/etc/alternatives/$_");
	    log::l("fixing broken alternative $_");
	}
	run_program::rooted($::prefix, 'update-alternatives', '--auto', $_);
    }
}


sub fileshare_config {
    my ($in, $type) = @_; #- $type is 'nfs', 'smb' or ''

    my $file = '/etc/security/fileshare.conf';
    my %conf = getVarsFromSh($file);

    my @l = (N_("No sharing"), N_("Allow all users"), N_("Custom"));
    my $restrict = exists $conf{RESTRICT} ? text2bool($conf{RESTRICT}) : 1;

    my $r = $in->ask_from_list_('fileshare',
N("Would you like to allow users to share some of their directories?
Allowing this will permit users to simply click on \"Share\" in konqueror and nautilus.

\"Custom\" permit a per-user granularity.
"),
				\@l, $l[$restrict ? (getgrnam('fileshare') ? 2 : 0) : 1]) or return;
    $restrict = $r ne $l[1];
    my $custom = $r eq $l[2];
    if ($r ne $l[0]) {
	require services;
	my %types = (
	    nfs => [ 'nfs-utils', 'nfs-server',
		     N("NFS: the traditional Unix file sharing system, with less support on Mac and Windows.")
		   ],
	    smb => [ 'samba', 'smb',
		     N("SMB: a file sharing system used by Windows, Mac OS X and many modern Linux systems.")
		   ],
       );
	my %l;
	if ($type) {
	    %l = ($type => 1);
	} else {
	    %l = map_each { $::a => services::starts_on_boot($::b->[1]) } %types;
	    $in->ask_from_({ messages => N("You can export using NFS or SMB. Please select which you would like to use."),
			     callbacks => { ok_disabled => sub { !any { $_ } values %l } },
			   },
			   [ map { { text => $types{$_}[2], val => \$l{$_}, type => 'bool' } } keys %l ]) or return;
	}
	foreach (keys %types) {
	    my ($pkg, $service, $_descr) = @{$types{$_}};
	    my $file = "/usr/lib/systemd/system/${service}.service";
	    if ($l{$_}) {
		$in->do_pkgs->ensure_is_installed($pkg, $file) or return;
		services::start($service);
		services::start_service_on_boot($service);
	    } elsif (-e $file) {
		services::stop($service);
		services::do_not_start_service_on_boot($service);
	    }
	}
	if ($in->do_pkgs->is_installed('nautilus')) {
	    $in->do_pkgs->ensure_is_installed('nautilus-filesharing') or return;
	}
    }
    $conf{RESTRICT} = bool2yesno($restrict);
    setVarsInSh($file, \%conf);

    if ($custom) {
	run_program::rooted($::prefix, 'groupadd', '-r', 'fileshare');
	if ($in->ask_from_no_check(
	{
	 -e '/usr/sbin/userdrake' ? (ok => N("Launch userdrake"), cancel => N("Close")) : (cancel => ''),
	 messages =>
N("The per-user sharing uses the group \"fileshare\". 
You can use userdrake to add a user to this group.")
	}, [])) {
	    run_program::run('userdrake');
	}
    }
}

sub monitor_full_edid() {
    return if $::noauto || $::local_install;

    my ($vbe, $edid);
    {
        # prevent warnings in install's logs:
        local $ENV{LC_ALL} = 'C';
        # don't use --try-in-console as it can cause a GNOME session to die (mga#28124)
        # with most DMs the DE is running in vt1, so it does nothing anyway
        run_program::raw({ timeout => 20 }, 
                         'monitor-edid', '>', \$edid, '2>', \$vbe, 
                         '-v', '--perl');
    }
    if ($::isInstall) {
	foreach (['edid', \$edid], ['vbe', \$vbe]) {
	    my ($name, $val) = @$_;
	    if (-e "/tmp/$name") {
		my $old = cat_("/tmp/$name");
		if (length($$val) < length($old)) {
		    log::l("new $name is worse, keeping the previous one");
		    $$val = $old;
		} elsif (length($$val) > length($old)) {
		    log::l("new $name is better, dropping the previous one");
		}
	    }
	    output("/tmp/$name", $$val);
	}
    }
    ($edid, $vbe);
}

# FIXME: is buggy regarding multiple sessions
sub running_window_manager() {
    my @window_managers = qw(drakx-matchbox-window-manager ksmserver kwin kwin_x11 kwin_wayland gnome-session icewm wmaker afterstep fvwm fvwm2 fvwm95 mwm twm enlightenment xfce4-session blackbox sawfish olvwm fluxbox compiz lxsession);

    foreach (@window_managers) {
	my @pids = fuzzy_pidofs(qr/\b$_\b/) or next;
	return wantarray() ? ($_, @pids) : $_;
    }
    undef;
}

sub set_wm_hints_if_needed {
    my ($o_in) = @_;
    my $wm = any::running_window_manager();
    $o_in->{no_Window_Manager} = !$wm if $o_in;
    $::set_dialog_hint = $wm eq 'drakx-matchbox-window-manager';
}

sub ask_window_manager_to_logout {
    my ($wm) = @_;
    
    my %h = (
	'ksmserver' => '/usr/lib/qt4/bin/qdbus org.kde.ksmserver /KSMServer logout 1 0 0',
	'kwin' => "dcop kdesktop default logout",
	'gnome-session' => "gnome-session-save --kill",
	'icewm' => "killall -QUIT icewm",
	'xfce4-session' => "xfce4-session-logout --logout",
	'lxsession' => "lxde-logout",
    );
    my $cmd = $h{$wm} or return;
    if (member($wm, 'ksmserver', 'kwin', 'gnome-session') && $> == 0) {	
	#- we cannot use dcop when we are root
	if (my $user = $ENV{USERHELPER_UID} && getpwuid($ENV{USERHELPER_UID})) {
	    $cmd = "su $user -c '$cmd'";
	} else {
	    log::l('missing or unknown $USERHELPER_UID');
	}
    }
    system($cmd);
    1;
}

sub ask_window_manager_to_logout_then_do {
    my ($wm, $pid, $action) = @_;
    if (fork()) {
	ask_window_manager_to_logout($wm);
	return;
    }
    
    open STDIN, "</dev/zero";
    open STDOUT, ">/dev/null";
    open STDERR, ">&STDERR";
    c::setsid();
    exec 'perl', '-e', q(
	my ($wm, $pid, $action) = @ARGV;
	my $nb;
	for ($nb = 30; $nb && -e "/proc/$pid"; $nb--) { sleep 1 }
	system($action) if $nb;
    ), $wm, $pid, $action;
}

sub ask_for_X_restart {
    my ($in) = @_;

    $::isStandalone && $in->isa('interactive::gtk') or return;

    my ($wm, $pid) = running_window_manager();

    if (!$wm) {
        # no window manager, ctrl-alt-del may not be supported, but we still have to restart X..
        $in->ask_okcancel('', N("You need to logout and back in again for changes to take effect. Press OK to logout now."), 1) or return;
        system('killall', 'Xorg');
    }
    else {
        $in->ask_okcancel('', N("You need to log out and back in again for changes to take effect"), 1) or return;
        ask_window_manager_to_logout_then_do($wm, $pid, 'killall Xorg');
    }
}

sub alloc_raw_device {
    my ($prefix, $device) = @_;
    my $used = 0;
    my $raw_dev;
    substInFile {
	$used = max($used, $1) if m|^\s*/dev/raw/raw(\d+)|;
	if (eof) {
	    $raw_dev = "raw/raw" . ($used + 1);
	    $_ .= "/dev/$raw_dev /dev/$device\n";
	}
    } "$prefix/etc/sysconfig/rawdevices";
    $raw_dev;
}

sub config_mtools {
    my ($prefix) = @_;
    my $file = "$prefix/etc/mtools.conf";
    -e $file or return;

    my ($f1, $f2) = detect_devices::floppies_dev();
    substInFile {
	s|drive a: file="(.*?)"|drive a: file="/dev/$f1"|;
	s|drive b: file="(.*?)"|drive b: file="/dev/$f2"| if $f2;
    } $file;
}

sub configure_timezone {
    my ($in, $timezone, $ask_gmt, $o_hide_ntp) = @_;

    require timezone;
    my $selected_timezone = $in->ask_from_treelist(N("Timezone"), N("Which is your timezone?"), '/', [ timezone::getTimeZones() ], $timezone->{timezone}) or return;
    $timezone->{timezone} = $selected_timezone;

    configure_time_more($in, $timezone, $o_hide_ntp)
	or goto &configure_timezone if $ask_gmt || to_bool($timezone->{ntp});

    1;
}

sub configure_time_more {
    my ($in, $timezone, $o_hide_ntp) = @_;

    my $ntp = to_bool($timezone->{ntp});
    my $servers = timezone::ntp_servers();
    $timezone->{ntp} ||= 'pool.ntp.org';

    require POSIX;
    use POSIX qw(strftime);
    my $time_format = "%H:%M:%S";
    my $tz_prefix = timezone::get_timezone_prefix();
    local $ENV{TZ} = ':' . $tz_prefix . '/' . $timezone->{timezone};

    $in->ask_from_({ interactive_help_id => 'configureTimezoneUTC',
                       title => N("Date, Clock & Time Zone Settings"), 
                 }, [
	  { label => N("Date, Clock & Time Zone Settings"), title => 1 },
	  { label => N("What is the best time?") },
	  { val => \$timezone->{UTC},
            type => 'list', list => [ 0, 1 ], format => sub {
                $_[0] ?
                  N("%s (hardware clock set to UTC)", POSIX::strftime($time_format, localtime())) :
                  N("%s (hardware clock set to local time)", POSIX::strftime($time_format, gmtime()));
            } },
          { label => N("NTP Server"), title => 1, advanced => $o_hide_ntp },
          { text => N("Automatic time synchronization (using NTP)"), val => \$ntp, type => 'bool',
            advanced => $o_hide_ntp },
          { val => \$timezone->{ntp}, disabled => sub { !$ntp }, advanced => $o_hide_ntp,
            type => "list", separator => '|',
            list => [ keys %$servers ], format => sub { $servers->{$_[0]} } },
    ]) or return;

    $timezone->{ntp} = '' if !$ntp;

    1;
}

sub disable_x_screensaver() {
    run_program::run("xset", "s", "off");
    run_program::run("xset", "-dpms");
}

sub enable_x_screensaver() {
    run_program::run("xset", "+dpms");
    run_program::run("xset", "s", "on");
    run_program::run("xset", "s", "reset");
}

1;