#!/usr/bin/perl 

use strict;

use lib qw(/usr/lib/libDrakX);
use standalone;

use common;
use ugtk2 qw(:helpers :wrappers :create);
use interactive;

my $in = 'interactive'->vnew('su', 'default');
local $_ = join '', @ARGV;

#- vars declaration
my ($default_perm_level) = "level ".chomp_(`cat /etc/sysconfig/msec | grep SECURE_LEVEL= |cut -d= -f2`);
my %CURENT;
my $perm_path		= '/usr/share/msec/';
my $local_path	= '/etc/security/msec/';
my %perm = ( 'level 1' => $perm_path.'perm.1',
             'level 2' => $perm_path.'perm.2',
             'level 3' => $perm_path.'perm.3',
             'level 4' => $perm_path.'perm.4',
             'level 5' => $perm_path.'perm.5',
             'editable' => $local_path.'perm.local',
           );
my $rows_cnt = 0;
my $editable = 0;
my $modified = 0;
my $prec_txt = $default_perm_level;
#my $bg = Gtk2::Gdk::Color->parse_color('grey');
#- Widget declaration
my $w = ugtk2->new('drakperm');
my $W = $w->{window};
$W->signal_connect(delete_event => sub { ugtk2->exit });
my $treeModel = Gtk2::TreeStore->new((Gtk2::GType->STRING) x 4);
my $permList = Gtk2::TreeView->new_with_model($treeModel);

my @column_sizes = (150, 100, 100, 15, -1);

each_index {
    my $col = Gtk2::TreeViewColumn->new_with_attributes($_, Gtk2::CellRendererText->new, 'text' => $::i);
    $col->set_min_width($column_sizes[$::i]);
    $permList->append_column($col);
} (N("path"), N("user"), N("group"), N("permissions"));


#TV $permList->set_shadow_type('out');

#- widgets settings
my $combo_perm = new Gtk2::Combo;
$combo_perm->set_popdown_strings(sort(keys %perm));

#- signal management
$W->signal_connect(delete_event => sub { ugtk2->exit });
$permList->signal_connect(select_row => \&row_setting_data);
#$permList->signal_connect( unselect_row => sub { undef(%CURENT)});

sub add_callback {
    #$permList->insert( $rows_cnt , '');
    $treeModel->append_set(undef, [ 0 => 'NEW', 1 => '-', 2 => '-', 3 => '-' ]);
    #$permList->($rows_cnt , 0);
    row_setting_dialog();
    $rows_cnt++;
}

sub del_callback {
    $permList->remove(${$CURENT{clicked}}{row});
    $rows_cnt--;
    $modified++;
}

sub down_callback {
    my $row = ${$CURENT{clicked}}{row};
    $permList->row_move($row, $row+1);
    $permList->unselect_all;
    $permList->select_row($row+1,0);
    $CURENT{clicked}{row} = $row+1;
}

sub up_callback {
    my $row = ${$CURENT{clicked}}{row};
    $permList->row_move($row, $row-1);
    $permList->unselect_all;
    $permList->select_row($row-1,0);
    $CURENT{clicked}{row} = $row-1;
}

my $combo_sig = $combo_perm->entry->signal_connect( changed => sub { &display_perm($combo_perm->entry->get_text , @_) });
$permList->signal_connect(button_press_event => sub { 
				$editable or return 0;
				my (undef, $event) = @_;
				&row_setting_dialog if $event->type eq '2button_press';
			    });


my $up_down_box = new Gtk2::HBox(0,5);


my $tips = new Gtk2::Tooltips;

foreach ([ N("Up"), N("Move selected rule up one level"), \&up_callback ], 
         [ N("Down"), N("Move selected rule down one level"), \&down_callback ], 
         [ N("add a rule"), N("Add a new rule at the end"), \&add_callback ],
         [ N("delete"), N("Delete selected rule"), \&del_callback ], 
         [ N("edit"), N("Edit current rule", \&row_setting_dialog) ]) {
    $up_down_box->add(gtkset_tip($tips,
                                 gtksignal_connect(Gtk2::Button->new($_->[0]),
                                                   clicked => $_->[2]
                                                   ),
                                 $_->[1]));
}




$W->add(gtkpack_(Gtk2::VBox->new(0,5),
                 0, Gtk2::Label->new(N("Drakperm is used to see files to use in order to fix permissions, owners, and groups via msec.\nYou can also edit your own rules which will owerwrite the default rules.")),
                 1, gtkadd(Gtk2::Frame->new,
                           gtkpack_(Gtk2::VBox->new(0,5),
                                    #Viewing management
                                    0, gtkadd(Gtk2::HBox->new(0,5),
                                              Gtk2::Label->new(N("select perm file to see/edit")),
                                              $combo_perm
                                              ),
                                    1, create_scrolled_window($permList),
                                    0, $up_down_box,
                                    0, gtkadd(Gtk2::HBox->new(0,5),
                                              gtksignal_connect(Gtk2::Button->new(N("save")), clicked => \&save_perm),
                                              gtksignal_connect(Gtk2::Button->new(N("quit")), clicked => sub { ugtk2->exit })
                                              )
                                    )
                           )
                 )
        );
$W->show_all;
$w->{rwindow}->set_position('center') unless $::isEmbedded;

display_perm($default_perm_level);
$combo_perm->entry->set_text($default_perm_level);

#- Gtk loop start here 
$w->main;

#- Should never get here
ugtk2->exit;


#- Built in functions
sub check_save {
    $modified or return 0;
    my $sav_ = $in->ask_okcancel('Warning', 'your changed will be lost do you wish to continue?');
    $sav_ 
      and $modified = 0;
    return $sav_;	
}

#- Desc => set the permList CList with the appropriate value
sub display_perm {
    my $perm_level = shift @_;
    my $file = $perm{$perm_level};
    my $sav_ = &check_save;
    my $i = 0;
    if ($modified && ! $sav_) {
	$combo_perm->entry->signal_handler_block($combo_sig);
	$combo_perm->entry->set_text($prec_txt);
	$combo_perm->entry->signal_handler_unblock($combo_sig);
	return 0;
    }

    $editable = $perm_level =~ /^level \d/ ? 0 : 1;
	
    $treeModel->clear();
    local *F;
    open F, $file;
    local $_;
    while (<F>) {
	next unless m/^([^#]\S+)\s+([^.\s]+)(\.(\S+))?\s+(\d+)/;
	$treeModel->append_set(undef, [ 0 => $1, 1 => $2, 2 => $4, 3 => $5 ]);
    }
    close F;
    $up_down_box->set_sensitive($editable);
	
    $rows_cnt = $i;
    $prec_txt = $perm_level;
    undef(%CURENT);
}

#- Desc => save the perm.local file if modification made
sub save_perm {
    $modified or return 0;
    local *F;
    open F, '>'.$local_path.'perm.local' or die("F CHIER BORDEL");
    foreach my $i (0..$rows_cnt) {
	my $line = $permList->get_text($i, 0) . "\t" . $permList->get_text($i,1) . ($permList->get_text($i,2) ? "." . $permList->get_text($i,2) : "") . "\t" . $permList->get_text($i,3) . "\n";
	print F $line;
    }
    close F;
    $modified = 0;
}
#- on list selection we get all data concerning the current selection
sub row_setting_data {
    my (undef, $row, $column) = @_;
    %CURENT = ('clicked' => {'row' => $row,
			     'col' => $column
			    },
	       'data' => [ $permList->get_text($row,0),
			   $permList->get_text( $row,1),
			   $permList->get_text( $row,2),
			   $permList->get_text( $row,3),
			 ]);
    #print(%{$CURENT{'clicked'}});print("\n");
}

my %perms;
#- Desc  => Here is the complete subwindow for rule settings
sub row_setting_dialog {
    $editable or return 0;
    
    my ($treeStore, $iter) = $permList->get_selection->get_selected;
    
    #- dlg widgets declaration
    my $dlg		= new Gtk2::Dialog();
    $dlg->set_transient_for($w->{rwindow}) unless $::isEmbedded;
    my $ok 		= new Gtk2::Button('ok');
    my $cancel 	= new Gtk2::Button('cancel');
    my $browse	= new Gtk2::Button(N("browse"));
    my $users 	= new Gtk2::Combo;
    my $groups	= new Gtk2::Combo;
    my $file		= new Gtk2::Entry;
    my $file_hbox  = new Gtk2::HBox(0,5);
    my $usr_hbox   = new Gtk2::HBox(0,5);
    my $usr_vbox   = new Gtk2::VBox(0,5);
    my $usr_check  = new Gtk2::CheckButton(N("Current user"));
    my $hb_rights  = new Gtk2::HBox(0,15);
    my $vb_rights  = new Gtk2::VBox(0,15);
    my $F_rights	= new Gtk2::Frame(N("Permissions"));
    my $F_path	= new Gtk2::Frame(N("Path"));
    my $F_usr		= new Gtk2::Frame(N("Property"));
    my $vb_specials = new Gtk2::VBox(0,5);
    my $sticky	= new Gtk2::CheckButton(N("sticky-bit"));
    my $suid	= new Gtk2::CheckButton(N("Set-UID"));
    my $gid	= new Gtk2::CheckButton(N("Set-GID"));
    my $rght = ${$CURENT{data}}[3];
    my $s = length($rght) == 4 ? substr($rght,0,1) : 0;
    my $user  = $s ? substr($rght,1,1) : substr($rght,0,1);
    my $group = $s ? substr($rght,2,1) : substr($rght,1,1);
    my $other = $s ? substr($rght,3,1) : substr($rght,2,1);

    my %rights = (user => $user, group => $group, other => $other);
    my @check	= ('', 'read', 'write', 'execute');

    $vb_rights->add(new Gtk2::Label($_)) foreach @check;
    $hb_rights->add($vb_rights);

    foreach my $r (keys %rights) {
	$perms{$r} = { get_right($rights{$r}) };
	my $vbox = gtkadd(Gtk2::VBox->new(0,5), Gtk2::Label->new($r));
	foreach my $c (@check) {
	    $c eq '' and next;
	    my $check = Gtk2::CheckButton->new;
	    $perms{$r}{$c} and $check->set_active(1);
	    $vbox->add($check);
	}
	$hb_rights->add($vbox);
    }
    
    $vb_specials->add(new Gtk2::Label(' '));
    $vb_specials->add($suid);
    $vb_specials->add($gid);
    $vb_specials->add($sticky);
    $hb_rights->add($vb_specials);
	
    #- dlg widgets settings
    my %s_right = &get_right($s);
    $s_right{execute} and $sticky->set_active(1);
    $s_right{write} and $gid->set_active(1);
    $s_right{read} and $suid->set_active(1);
	
    $file->set_text(${$CURENT{data}}[0]);

    $users->set_popdown_strings(&get_user_or_group('users'));
    $users->entry->set_text(${$CURENT{data}}[1]);
    $users->entry->set_editable(0);
	
    $groups->set_popdown_strings(&get_user_or_group);
    $groups->entry->set_text(${$CURENT{data}}[2]);
    $groups->entry->set_editable(0);
#    $dlg->set_policy(0,0,1);
    $dlg->set_modal(1);

	
    if (${$CURENT{data}}[1] eq 'current') {
	$usr_check->set_active(1);
	$groups->set_sensitive(0);
	$users->set_sensitive(0);
    }
	
    $tips->set_tip($sticky, N("Used for directory:\n only owner of directory or file in this directory can delete it"));
    $tips->set_tip($suid, N("Use owner id for execution"));
    $tips->set_tip($gid, N("Use group id for execution"));
    $tips->set_tip($usr_check, N("when checked, owner and group won't be changed"));
	
    #- event management
    $cancel->signal_connect( clicked => sub { $dlg->destroy });
    $browse->signal_connect( clicked => sub {
				 my $file_dlg = new Gtk2::FileSelection(N("Path selection"));
				 $file_dlg->set_modal(1);
				 $file_dlg->show;
				 $file_dlg->set_filename($file->get_text);
				 $file_dlg->cancel_button->signal_connect( clicked => sub { $file_dlg->destroy });
				 $file_dlg->ok_button->signal_connect( clicked => sub {
									   $file->set_text($file_dlg->get_filename);
									   $file_dlg->destroy;
								       });
			
			     });
    $ok->signal_connect( clicked => sub {
			     $treeModel->append_set($iter, [ 0 => $file->get_text ]);
			     if ($usr_check->get_active) {
				 $treeModel->append_set($iter, [ 1 => 'current' ]);
				 $treeModel->append_set($iter, [ 2 => '' ]);
			     } else {
				 $treeModel->append_set($iter, [ 1 => $users->entry->get_text ]);
				 $treeModel->append_set($iter, [ 2 => $groups->entry->get_text ]);
			     }
			     #- mod calculation
			     #$user  = ($perms{user}{read}->get_active  ? 4 : 0)+($perms{user}{write}->get_active ? 2 : 0)+($perms{user}{execute}->get_active ? 1 : 0);
			     #$group = ($perms{group}{read}->get_active ? 4 : 0)+($perms{group}{write}->get_active ? 2 : 0)+($perms{group}{execute}->get_active ? 1 : 0);
			     #$other = ($perms{other}{read}->get_active ? 4 : 0)+($perms{other}{write}->get_active ? 2 : 0)+($perms{other}{execute}->get_active ? 1 : 0);
			     my $s     = ($sticky->get_active ? 1 : 0)   + ($suid->get_active ? 4 : 0)      + ($gid->get_active ? 2 : 0);
			     $treeModel->append_set($iter, [ 3 => ($s || '') . $user . $group . $other ]);
			     $dlg->destroy;
			     $modified++;
			 });
    $usr_check->signal_connect( clicked => sub {
				    my $bool = $usr_check->get_active; 
				    $groups->set_sensitive($bool);
				    $users->set_sensitive($bool);
				});
	
    #- dlg widgets placement
    $file_hbox->add($file);
    $file_hbox->add($browse);
	
    $usr_vbox->add($usr_check);
    $usr_vbox->add($usr_hbox);
	
    $usr_hbox->add(new Gtk2::Label(N("user :")));
    $usr_hbox->add($users);
    $usr_hbox->add(new Gtk2::Label(N("group :")));
    $usr_hbox->add($groups);
	
    $F_path->add($file_hbox);
    $F_rights->add($hb_rights);
    $F_usr->add($usr_vbox);
	
    $dlg->vbox->add($F_path);
    $dlg->vbox->add($F_usr);
    $dlg->vbox->add($F_rights);
	
    $dlg->action_area->add($ok);
    $dlg->action_area->add($cancel);
	
    $dlg->show_all;

}

#- Desc  => return an array of the available users on the machine
sub get_user_or_group {
    my $what = @_;
    my @users;
    local *F;
    open F, $what eq 'users' ? '/etc/passwd' : '/etc/group';
	
    local $_;
    while (<F>) {
	m/^([^#:]+):[^:]+:[^:]+:/ or next;
	push @users, $1;
    }
    close F;
    return sort(@users);
}

#- Desc  => return hash of boolean value for read write and execution permission from a value between 0 - 7
sub get_right {
    my ($right) = @_;
    my %rght	= ('read' => 0, 'write' => 0, 'execute' => 0);
    $right - 4 >= 0 and $rght{read}=1 and $right = $right-4;
    $right - 2 >= 0 and $rght{write}=1 and $right = $right-2;
    $right - 1 >= 0 and $rght{execute}=1 and $right = $right-1;
    return %rght;
}