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File:  [LON-CAPA] / loncom / publisher / lonrights.pm
Revision 1.4: download - view: text, annotated - select for diffs
Thu Mar 20 19:20:31 2003 UTC (21 years, 1 month ago) by www
Branches: MAIN
CVS tags: HEAD
Continued work on custom access rights viewer/editor

# The LearningOnline Network with CAPA
# Handler to show and edit custom distribution rights
#
# $Id: lonrights.pm,v 1.4 2003/03/20 19:20:31 www Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
#
###

package Apache::lonrights;

use strict;
use Apache::Constants qw(:common :http);
use Apache::lonnet();
use Apache::loncommon();
use HTML::LCParser;
use Apache::File;

sub handler {

  my $r=shift;
  $r->content_type('text/html');
  $r->send_http_header;

  $r->print(
     '<html><head><title>LON-CAPA Custom Distribution Rights</title></head>');

  $r->print(&Apache::loncommon::bodytag('Custom Distribution Rights'));

  my $uri=$r->uri;
  my $fn=&Apache::lonnet::filelocation('',$uri);
  my $contents='';
  my $constructmode=($uri=~/^\/\~/);
  unless ($constructmode) { 
# =========================================== This is not in construction space
      $contents=&Apache::lonnet::getfile($fn);
      if ($contents==-1) { $contents=''; }
  } else {
# =============================================== This is in construction space
      if (-e $fn) {
	  my $fh=Apache::File->new($fn);
          $contents=join('',<$fh>);
          $fh->close();
      }
      $r->print('<form method="post">');
  }
  my $parser=HTML::LCParser->new(\$contents);
  my $token;
  my $rulecounter=0;
  my $colzero=($constructmode?'Edit action':'Rule');
# ---------------------------------------------------------- Start table output
  $r->print(<<ENDSTARTTABLE);
<table border="2">
    <tr><th>$colzero</th><th>Effect</th><th>Domain</th><th>Course</th>
<th>Section</th><th>Role</th></tr>
ENDSTARTTABLE
# --------------------------------------------------------------------- Default
# Fast forward to first rule
  $token=$parser->get_token;
  while ($token->[1] ne 'accessrule') { $token=$parser->get_token; }
# print default
  $r->print('<tr><td>&nbsp;</td><td>');
  if ($constructmode) {
      $r->print(&Apache::loncommon::select_form
                                 ($token->[2]->{'effect'},'effect_0',
                                   ('allow' => 'allow',
                                    'deny'  => 'deny')));
  } else {
      $r->print($token->[2]->{'effect'});
  }
  $r->print('</td><td colspan="4">Default');
  if (($token->[2]->{'realm'}) || ($token->[2]->{'role'})) {
      $r->print(' - <font color="red">Error! No default set.</font>');
  }
  $r->print('</td></tr>');
# Additional roles
  while ($token=$parser->get_token) {
      if (($token->[0] eq 'S') && ($token->[1] eq 'accessrule')) {
          $rulecounter++;
	  $r->print('<tr><td>');
# insert, delete, etc
	  $r->print($rulecounter.'.&nbsp;');
          if ($constructmode) {
             $r->print(&Apache::loncommon::select_form(
                    '','action_'.$rulecounter,
                    ('' => '', 
                     'delete' => 'Delete this rule',
                     'insertabove' => 'Insert rule above',
                     'insertbelow' => 'Insert rule below',
                     'moveup'      => 'Move rule up',
                     'movedown'    => 'Move rule down')));
	  }
          $r->print('</td><td>');
# effect
          if ($constructmode) {
             $r->print(&Apache::loncommon::select_form
                                 ($token->[2]->{'effect'},
                                  'effect_'.$rulecounter,
                                   ('allow' => 'allow',
                                    'deny'  => 'deny')));
          } else {
             $r->print($token->[2]->{'effect'});
          }
	  $r->print('</td><td>');
# ---- realm
          my $realm=$token->[2]->{'realm'};
          $realm=~s/^\W//;
          my ($rdom,$rcourse,$rsec)=split(/[\/\_]/,$realm);
# realm role
          if ($constructmode) {
              $r->print(&Apache::loncommon::select_dom_form($rdom,
                                                      'domain_'.$rulecounter));
          } else {
              $r->print($rdom);
          }
          $r->print('</td><td>');
# realm course
          if ($constructmode) {
             $r->print('<input input type="text" size="25" name="course_'.
                       $rulecounter.'" value="'.$rcourse.'" />');
          } else {
              $r->print($rcourse);
          }

          $r->print('</td><td>');
# realm section
          if ($constructmode) {
             $r->print('<input input type="text" size="5" name="section_'.
                       $rulecounter.'" value="'.$rsec.'" />');
          } else {
              $r->print($rsec);
          }

          $r->print('</td><td>');
# role
          if ($constructmode) {
	      my %hash=('' => '');
              foreach ('au','cc','in','ta','st') { 
                 $hash{$_}=&Apache::lonnet::plaintext($_); 
              }
              my $role=$token->[2]->{'role'};
              unless ($role) { $role=''; }
              $r->print(&Apache::loncommon::select_form(
                $role,'role_'.$rulecounter,%hash));
          } else {
              $r->print(&Apache::lonnet::plaintext($token->[2]->{'role'}));
          }
# close row
          $r->print('</td></tr>');
     }                                       
  }
  $r->print('</table>');
# ------------------------------------------------------------ End table output
  if ($constructmode) { 
     $r->print('<input type="submit" value="Store" /></form>'); 
  }
  $r->print('</body></html>');
  return OK;  
}


1;
__END__
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