#!/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');
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;

#- Widget declaration
my $w = ugtk2->new('drakperm');
$w->{rwindow}->set_size_request(550, 400) unless $::isEmbedded;
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"));

#- widgets settings
my $combo_perm = new Gtk2::Combo;
$combo_perm->entry->set_editable(0);
$combo_perm->set_popdown_strings(sort(keys %perm));

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

sub edit_callback {
    my (undef, $iter) = $permList->get_selection->get_selected;
    return unless $iter;
    %CURENT = ('data' => [
                          $treeModel->_get($iter, 0),
                          $treeModel->_get($iter, 1),
                          $treeModel->_get($iter, 2),
                          $treeModel->_get($iter, 3),
                         ]
              );
    row_setting_dialog($iter);
}

sub del_callback {
    my ($tree, $iter) = $permList->get_selection->get_selected();
    $tree->remove($iter);
    $rows_cnt--;
    $modified++;
}

sub down_callback {
    #- broken
    # 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 {
    #- broken
    # 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 { 
			      my (undef, $event) = @_;
			      my (undef, $iter) = $permList->get_selection->get_selected;
			      row_setting_dialog($iter) if $event->type eq '2button_press';
			  });


my $tips = new Gtk2::Tooltips;

$W->add(gtkpack_(Gtk2::VBox->new(0,5),
                 0, gtkset_property(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.")), 'wrap', 1),
                 1, gtkadd(Gtk2::Frame->new,
                           gtkpack_(Gtk2::VBox->new(0,5),
                                    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, my $up_down_box = gtkadd(Gtk2::HBox->new(0, 5),
                                                                map {
                                                                    gtkset_tip($tips, 
                                                                               gtksignal_connect(Gtk2::Button->new($_->[0]), clicked => $_->[2]),
                                                                               $_->[1]);
                                                                } ([ 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"), \&edit_callback ])),
                                    0, gtkpack(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);

$w->main;
ugtk2->exit;


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_;	
}

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);
}

sub save_perm {
    $modified or return 0;
    my $val;
    local *F;
    open F, '>'.$local_path.'perm.local' or die("Impssible to process \"", $local_path, "perm.local\"");
    $treeModel->foreach(sub {
                             my ($model, $_path, $iter) = @_;
                             my $module = $model->get($iter, 0);
                             my $line = $model->get($iter, 0) . "\t" . $model->get($iter,1) . ($model->get($iter,2) ? "." . $model->get($iter,2) : "") . "\t" . $model->get($iter,3) . "\n";
                             print F $line;
                             return 0;
                         }, $val);
    close F;
    $modified = 0;
}

sub row_setting_dialog {
    my ($iter) = @_;
    
    my %perms;
    my $dlg		= new Gtk2::Dialog();
    $dlg->set_transient_for($w->{rwindow}) unless $::isEmbedded;
    $dlg->set_modal(1);
#    $dlg->set_resizable(0);
    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 $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_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 $active = $perms{$r}{$c};
	    $perms{$r}{$c} = Gtk2::CheckButton->new;
	    $perms{$r}{$c}->set_active($active);
 	    $vbox->add($perms{$r}{$c});
 	}
 	$hb_rights->add($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);
	
    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"));
	
    $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 {
			    $treeModel->set($iter, [ 0 => $file->get_text ]);
			    if ($usr_check->get_active) {
				$treeModel->set($iter, [ 1 => 'current' ]);
				$treeModel->set($iter, [ 2 => '' ]);
			     } else {
				 $treeModel->set($iter, [ 1 => $users->entry->get_text ]);
				 $treeModel->set($iter, [ 2 => $groups->entry->get_text ]);
			     }
			     $user = ($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);
			     $treeModel->set($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);
				});
	
	
    $usr_vbox->add($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);
	
    $F_rights->add($hb_rights);
    $F_usr->add($usr_vbox);
	
    gtkpack_($dlg->vbox,
             0, gtkadd(new Gtk2::Frame(N("Path")),
                   gtkpack_(Gtk2::HBox->new(0,5),
                            1, $file,
                            0, $browse
                           )
                  ),
              0, $F_usr,
              1, $F_rights
             );
    $dlg->action_area->add($ok);
    $dlg->action_area->add($cancel);
	
    $dlg->show_all;

}

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);
}

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;
}