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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;

# 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 2;
    $ENV{wiz_do_file_sharing} and return 1;
    0;
}

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

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;
}

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 $_;
	}
    }
}

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

sub	file_sharing {
    my	$self = shift;
    standalone->explanations("Enabling $ENV{wiz_dir} samba file sharing");
    $self->comment_menu("public", "");
    $self->chg_var("global", "security", "share");
}

sub	homes {
    my	$self = shift;
    standalone->explanations("Enabling samba homes access");
    $self->comment_menu("homes", "");
    $self->chg_var("global", "security", "share");    
}

sub	printer_sharing {
    my	$self = shift;
    standalone->explanations("Enabling samba printer sharing");
    $self->comment_menu("printers", "");
}

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

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

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

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

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

sub	ask_dir {
    $ENV{wiz_do_file_sharing};
}

sub	get_dir {
    $old->{conf}->{public}{path}{value};
}
# remember one variable cannot be commented and not in the same file.

sub	do_it {
    my $conf = read_conf("__WIZ_HOME__/samba_wizard/scripts/smb.conf.default");
    $conf->chg_var("global", "workgroup", $ENV{wiz_workgroup});
    $conf->chg_var("global", "server string", $ENV{wiz_banner});
    my $ip = $o->get_from_known_dev("IP");
    $conf->file_sharing() if $ENV{wiz_do_file_sharing};
    $conf->printer_sharing() if $ENV{wiz_do_printer_sharing};
    $conf->homes() if $ENV{wiz_do_homes};
    $conf->chg_var("global", "hosts allow", $ip);
    $conf->chg_var("global", "security", "share");
    $conf->chg_var("public", "path", $ENV{wiz_dir}) if $ENV{wiz_dir};
    $conf->write_conf("/etc/samba/smb.conf");
    system("/etc/rc.d/init.d/smb restart");
    10;
}
1;