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#! /usr/bin/perl -w

package Smbconf;
require "__WIZ_HOME__/common/scripts/Vareqval.pm";
require "__WIZ_HOME__/common/scripts/DrakconnectConf.pm";
use MDK::Common;
#use strict;
use Data::Dumper;

# All possibilies in the config file must be precedeed by ";" 
# This script can just comment, uncomment or/and change values
# but can not add anything.
# so one variable cannot be commented and not in the same file.

my $o = DrakconnectConf->new();

sub	check {
    $> and return 1;
    $o->is_dhcp() and return 2;
    0;
}

sub	check_services {
    $ENV{wiz_do_homes} and return 3;
    $ENV{wiz_do_file_sharing} and return 2;
    $ENV{wiz_do_printer_sharing} and return 1;
    0;
}

sub	check_dir {
    -d ($ENV{wiz_dir}) and return 10;
    1;
}

# the "__" before comment is to avoid conflicts with possible "comment" variable
# for variables value is in value key and comment idem (no risque of conflict)

sub	read_conf {
    my	$self = {};
    my	($file) = @_;
    my	$menu;
    my	@tab;
    my	%conf;
    
    open(FH, $file) or die "$! ($file)";
    while (<FH>) {
	if (/^(\s*\;?\s*)\[(.*)\].*/) {
	    $menu = $2;
	    $conf{$menu}{__comment} = $1;
	}
	elsif (/^(?!\#)(\s*\;*\s*)(.*?)\s*=\s*(.*)\s*$/) {
	    $conf{$menu}{$2}{value} = $3;
	    $conf{$menu}{$2}{comment} = $1;
	}
	push @tab, $_;
    }
    $self->{conf} = \%conf;
    $self->{tab} = \@tab;
    bless $self;
}

# we parse @tab to check for values in the struct.

sub	write_conf {
    my	$self = shift;
    my	($file) = @_;
    my	$menu;
    
    open(FH, "> $file") or die "$!";
    foreach (@{$self->{tab}}) {
	if (/^\s*\;?\s*\[(.*)\].*/) {
	    $menu = $1;
	    print FH "$self->{conf}->{$menu}{__comment}"."[$menu]\n";
	}
	elsif (/^(?!\#)\s*\;*\s*(.*?)\s*=/) {
	    print FH "$self->{conf}->{$menu}{$1}{comment}"."$1" ." = ". "$self->{conf}->{$menu}{$1}{value}\n";
	}
	else {
	    print FH $_;
	}
	print "$_\n";
    }
}

#section has the name of the printer
sub	add_printer {
    my	$self = shift;
    my	($printer) = @_;
    
    if (exists $self->{conf}->{$printer}) {
	$self->comment_menu($printer, "");
    }
    else {
	$self->{conf}->{$printer}{printable}{comment} = "";
	$self->{conf}->{$printer}{printer}{comment} = "";
	push @{$self->{tab}}, "[$printer]\n";
	push @{$self->{tab}}, "printer = \n"; 
	push @{$self->{tab}}, "printable = \n"; 
	$self->{conf}->{$printer}{printer}{value} = $printer;
	$self->{conf}->{$printer}{printable}{value} = "yes";
    }
}

sub     list_printers {
    my  $file = "/etc/printcap";
    my	$i;

    sort grep /^(?!\#).*/, map {
        my @toto = split(':', $_);
	$i++;
	$toto[0];
    } cat_($file);
}

sub	check_users {
    return 1 if $ENV{wiz_do_printer_sharing};
    0;
}

sub	comment_menu {
    my	$self = shift;
    my	($menu, $str) = @_;
    
    return if (!$menu or !exists $self->{conf}->{$menu});
    $self->{conf}->{$menu}{__comment} = $str;
    foreach (keys %{$self->{conf}->{$menu}}) {
	($_ eq "__comment") and next;
	$self->{conf}->{$menu}{$_}{comment} = $str;
    }
}

sub	comment_var {
    my	$self = shift;
    my	($menu, $var, $str) = @_;
    
    $self->{conf}->{$menu}{$var}{comment} = $str;
}

sub	chg_var {
    my	$self = shift;
    my	($menu, $var, $str) = @_;
    
    $self->{conf}->{$menu}{$var}{value} = $str;
}

# all or selected printers
sub	printer_sharing {
    my	$self = shift;
    my	$printer;

    if ($ENV{wiz_all_printers}) {
	$self->comment_menu("printers", "");
	foreach $printer (keys (%::bool)) {
	    $self->comment_menu($printer, ";");
	}
    }
    else {
	$self->comment_menu("printers", ";");
	foreach $printer (keys (%::bool)) {
	    if (int($::bool{$printer})) {
		$self->comment_menu($printer, "");
		$self->add_printer($printer);
	    }
	    else {
		$self->comment_menu($printer, ";");
	    }
	}
    }
}

sub	get_printers {
    my	$printers;
    
    if ($ENV{wiz_do_printer_sharing}) {
	$ENV{wiz_all_printers} and return "all printers";
	foreach (keys (%::bool)) {
	    $printers .= "$_, " if int($::bool{$_});
	}
	$/ = " ";
	chomp $printers;
	$/ = ",";
	chomp $printers;
	"$printers";
    }
    else {
	"disabled";
    }
}

sub	check_workgroup {
    !$ENV{wiz_workgroup} and return 1;
    10;
}

sub	ask_acces {
    10;
}

my $old = read_conf("/etc/samba/smb.conf");

sub	get_write {
    $old->{conf}->{public}{"write list"}{value};
}

sub	get_read {
    $old->{conf}->{public}{"read list"}{value};
}

sub	check_banner {
    !$ENV{wiz_banner} and return 1;
    10;
}

sub	get_workgroup {
    $old->{conf}->{global}{workgroup}{value}; 
}

sub	get_banner {
    $old->{conf}->{global}{"server string"}{value};
}

sub	ask_dir {
    return 2 if $ENV{wiz_do_file_sharing};
    return 1 if $ENV{wiz_do_printer_sharing};
    0;
}

sub	get_dir {
    $old->{conf}->{public}{path}{value};
}

sub	get_file_sharing {
    return 0 if ($old->{conf}->{public}{__comment} =~ /\;|\#/);
    1;
}

sub	get_home_sharing {
    return 0 if ($old->{conf}->{homes}{__comment} =~ /\;|\#/);
    1;
}

sub	get_netmask {
    "192.168.100.1/255.255.255.0";
}

sub	get_allow_host {
    $old->{conf}->{global}{"hosts allow"}{value};
}

sub	get_deny_host {
    $old->{conf}->{global}{"hosts deny"}{value};
}

sub	chk_level {
#     if ($ENV{wiz_level} == 2) {
# 	$ENV{wiz_allow_allow} = "toto";
# 	$ENV{wiz_allow_allow} = "toto";
#     }
#     else {
# 	$ENV{wiz_hosts_deny} = "tata";
# 	$ENV{wiz_hosts_deny} = "tata";
#     }
#     if ($ENV{wiz_level} == 3) {
# 	$ENV{wiz_allow_allow} = "toto";
# 	$ENV{wiz_allow_allow} = "toto";
#     }
#     else {
# 	$ENV{wiz_hosts_deny} = "tata";
# 	$ENV{wiz_hosts_deny} = "tata";
#     }
    $ENV{wiz_level};
}

# remember one variable cannot be commented and not in the same file.
sub	do_it {
    my	$file = "__WIZ_HOME__/samba_wizard/scripts/smb.conf.default";

    my $conf = read_conf($file);
    $conf->chg_var("global", "security", "share");
    $conf->chg_var("global", "workgroup", $ENV{wiz_workgroup});
    print "$ENV{wiz_workgroup}\n";
    $conf->chg_var("global", "server string", $ENV{wiz_banner});
    $conf->chg_var("public", "write list", $ENV{wiz_write_list}) if $ENV{wiz_do_file_sharing};
    $conf->chg_var("public", "read list", $ENV{wiz_read_list}) if $ENV{wiz_do_file_sharing};
    my $ip = $o->get_from_known_dev("IP");
    if ($ENV{wiz_do_file_sharing}) {
	standalone->explanations("Enabling $ENV{wiz_dir} samba file sharing");
	$conf->comment_menu("public", "");
    }
    else {
	standalone->explanations("Disabling samba file sharing");
	$conf->comment_menu("public", ";");
    }
    if ($ENV{wiz_do_homes}) {
	standalone->explanations("Enabling samba homes sharing");
	$conf->comment_menu("homes", " ");
    }
    else {
	standalone->explanations("Disabling samba homes sharing");
	$conf->comment_menu("homes", ";");	
    }
    standalone->explanations("Samba deny $ENV{wiz_hosts_deny}");
    standalone->explanations("Samba allow $ENV{wiz_hosts_allow}");
    $conf->chg_var("global", "hosts deny", $ENV{wiz_hosts_deny});
    $conf->comment_var("global", "hosts deny", "");
    $conf->chg_var("global", "hosts allow", $ENV{wiz_hosts_allow});
    $conf->comment_var("global", "hosts allow", "");
    $conf->chg_var("global", "security", "share");
    $conf->chg_var("public", "path", $ENV{wiz_dir}) if $ENV{wiz_dir};
    if ($ENV{wiz_do_printer_sharing}) {
	standalone->explanations("Enabling printer sharing");
	$conf->printer_sharing();
    }
    else {
	standalone->explanations("Disabling printer sharing");
	foreach $printer (keys (%::bool)) {
	    if (!int($::bool{$printer})) {
		$conf->comment_menu("$printer", ";");
	    }
	}
	$conf->comment_menu("printers", ";");
    }
    $conf->write_conf("/etc/samba/smb.conf");
    system("/etc/rc.d/init.d/smb restart");
    10;
}
1;