File:  [LON-CAPA] / loncom / interface / portfolio.pm
Revision 1.149: download - view: text, annotated - select for diffs
Tue Aug 8 19:36:54 2006 UTC (17 years, 10 months ago) by banghart
Branches: MAIN
CVS tags: HEAD
	rewrite sub make_anchor to simplify and generalize calling

    1: # The LearningOnline Network
    2: # portfolio browser
    3: #
    4: # $Id: portfolio.pm,v 1.149 2006/08/08 19:36:54 banghart Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or 
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: 
   29: package Apache::portfolio;
   30: use strict;
   31: use Apache::Constants qw(:common :http);
   32: use Apache::loncommon;
   33: use Apache::lonnet;
   34: use Apache::lontexconvert;
   35: use Apache::lonfeedback;
   36: use Apache::lonlocal;
   37: use Apache::lonnet;
   38: use Apache::longroup;
   39: use Apache::lonhtmlcommon;
   40: use HTML::Entities;
   41: use LONCAPA;
   42: 
   43: sub group_args {
   44:     my $output;
   45:     if (defined($env{'form.group'})) {
   46:         $output .= '&group='.$env{'form.group'};
   47: 	if (defined($env{'form.ref'})) {
   48: 	    $output .= '&ref='.$env{'form.ref'};
   49: 	}
   50:     }
   51:     return $output;
   52: }
   53: 
   54: sub group_form_data {
   55:     my $output;
   56:     if (defined($env{'form.group'})) {
   57: 	$output = '<input type="hidden" name="group" value="'.$env{'form.group'}.'" />';
   58: 	if (exists($env{'form.ref'})) {
   59: 	    $output .= '<input type="hidden" name="ref" value="'.
   60: 		$env{'form.ref'}.'" />';
   61: 	}
   62:     }
   63:     return $output;
   64: } 
   65: 
   66: # receives a file name and path stub from username/userfiles/portfolio/
   67: # returns an anchor tag consisting encoding filename and currentpath
   68: sub make_anchor {
   69:     my ($url, $anchor_fields, $inner_text) = @_;
   70:     if ($$anchor_fields{'continue'} ne 'true') {$$anchor_fields{'continue'} = 'false'};
   71:     my $anchor = '<a href="'.$url.'?';
   72:     foreach my $field_name (keys(%$anchor_fields)) {
   73:         $anchor .= $field_name.'='.$$anchor_fields{$field_name}.'&amp;';
   74:     }
   75:     $anchor =~ s\&amp;$\\;
   76:     $anchor .= &group_args();
   77:     $anchor .= '">'.$inner_text.'</a>';
   78:     return $anchor;
   79: }
   80: 
   81: my $dirptr=16384;
   82: sub display_common {
   83:     my ($r,$url,$current_path,$is_empty,$dir_list,$can_upload)=@_;
   84:     my $namespace = &get_namespace();
   85:     my $port_path = &get_port_path();
   86:     if ($can_upload) {
   87:         my $groupitem = &group_form_data();
   88: 
   89:         my $iconpath= $r->dir_config('lonIconsURL') . "/";
   90:         my %text=&Apache::lonlocal::texthash(
   91: 					 'upload' => 'Upload',
   92: 					 'upload_label' =>  
   93: 					 'Upload file to current directory:',
   94: 					 'createdir' => 'Create Subdirectory',
   95: 					 'createdir_label' => 
   96: 					 'Create subdirectory in current directory:');
   97:         my $escuri = &HTML::Entities::encode($r->uri,'&<>"');
   98:         $r->print(<<"TABLE"); 
   99: <table id="LC_portfolio_actions">
  100:   <tr id="LC_portfolio_upload">
  101:     <td class="LC_label">
  102:       $text{'upload_label'}
  103:     </td>
  104:     <td class="LC_value">
  105:       <form method="post" enctype="multipart/form-data" action="$escuri">
  106:         $groupitem 
  107:         <input name="uploaddoc" type="file" />
  108: 	<input type="hidden" name="currentpath" value="$current_path" />
  109: 	<input type="hidden" name="action" value="$env{"form.action"}" />
  110: 	<input type="hidden" name="fieldname" value="$env{"form.fieldname"}" />
  111: 	<input type="hidden" name="mode" value="$env{"form.mode"}" />
  112: 	<input type="submit" name="storeupl" value="$text{'upload'}" />
  113:       </form>
  114:     </td>
  115:   </tr>
  116:   <tr id="LC_portfolio_createdir">
  117:     <td class="LC_label">
  118:       $text{'createdir_label'}
  119:     </td>
  120:     <td class="LC_value">
  121:       <form method="post" action="$escuri">
  122:         <input name="newdir" type="input" />$groupitem
  123:         <input type="hidden" name="currentpath" value="$current_path" />
  124:         <input type="hidden" name="action" value="$env{"form.action"}" />
  125:         <input type="hidden" name="fieldname" value="$env{"form.fieldname"}" />
  126:         <input type="hidden" name="mode" value="$env{"form.mode"}" />
  127:         <input type="submit" name="createdir" value="$text{'createdir'}" />
  128:       </form>
  129:     </td>
  130:   </tr>
  131: </table>
  132: TABLE
  133:     }
  134:     my @tree = split (/\//,$current_path);
  135:     my %anchor_fields = ();
  136:     %anchor_fields = (
  137:         'selectfile'    => $port_path,
  138:         'currentpath'   => '/',
  139:         'mode'          => $env{"form.mode"},
  140:         'fieldname'     => $env{"form.fieldname"},
  141:         'continue'      => $env{"form.continue"}
  142:     );
  143:     $r->print('<span class="LC_current_location">'.&make_anchor($url,\%anchor_fields,$port_path).'/');
  144:     if (@tree > 1){
  145:         my $newCurrentPath = '';
  146:         for (my $i = 1; $i< @tree; $i++){
  147:             $newCurrentPath .= $tree[$i].'/';
  148:             my %anchor_fields = ();
  149:             %anchor_fields = (
  150:                 'selectfile' => $tree[$i],
  151:                 'currentpath' => '/',
  152:                 'mode' => $env{"form.mode"},
  153:                 'fieldname' => $env{"form.fieldname"},
  154:                 'continue' => $env{"form.continue"}
  155:             );
  156:             $r->print(&make_anchor($url,\%anchor_fields,$tree[$i]).'/');
  157:         }
  158:     }
  159:     $r->print('</span>');
  160:     &Apache::lonhtmlcommon::store_recent($namespace,$current_path,$current_path);
  161:     $r->print('<br /><form method="post" action="'.$url.'?mode='.$env{"form.mode"}.'&amp;fieldname='.$env{"form.fieldname"}.&group_args());
  162:     $r->print('">'.
  163: 	      &Apache::lonhtmlcommon::select_recent($namespace,'currentpath',
  164: 						    'this.form.submit();'));
  165:     $r->print("</form>");
  166: }
  167: 
  168: sub display_directory_line {
  169:     my ($r,$select_mode,$fullpath, $filename, $mtime, $size, $css_class,
  170: 	$line, $access_controls, $curr_access, $now, $version_flag,
  171: 	$href_location, $url, $current_path, $access_admin_text, $versions)=@_;
  172:     # my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef)=split(/\&/,$line,16); 
  173:     $r->print('<tr class="'.$css_class.'">');
  174:     $r->print($line);
  175:     $r->print('<td><img alt="" src="'.&Apache::loncommon::icon($filename).'" /></td>');
  176:     $r->print('<td>'.$$version_flag{$filename}.'</td><td><a href="'.$href_location.$filename.'">'.
  177: 	      $filename.'</a></td>'); 
  178:     $r->print('<td>'.$size.'</td>');
  179:     $r->print('<td>'.&Apache::lonlocal::locallocaltime($mtime).'</td>');
  180:     if ($select_mode ne 'true') {
  181: 	$r->print('<td><span style="white-space: nowrap">'.
  182: 		  &mt($curr_access).'&nbsp;&nbsp;&nbsp;');
  183: 	$r->print('<a href="'.$url.'?access='.$filename.
  184: 		  '&amp;currentpath='.$current_path.&group_args().
  185: 		  '">'.$access_admin_text.'</a></span></td>');
  186:     }
  187:     $r->print('</tr>'.$/);
  188: }
  189: 
  190: sub display_directory {
  191:     my ($r,$url,$current_path,$is_empty,$dir_list,$group,$can_upload,
  192:         $can_modify,$can_delete,$can_setacl)=@_;
  193:     my $iconpath= $r->dir_config('lonIconsURL') . "/";
  194:     my $display_out;
  195:     my $select_mode;
  196:     my $checked_files;
  197:     my $port_path = &get_port_path();
  198:     my ($uname,$udom) = &get_name_dom();
  199:     my $access_admin_text = &mt('View Status');
  200:     if ($can_setacl) {
  201:         $access_admin_text = &mt('View/Change Status');
  202:     }
  203: 
  204:     my $current_permissions = &Apache::lonnet::get_portfile_permissions($udom,
  205:                                                                         $uname);
  206:     my %locked_files = &Apache::lonnet::get_marked_as_readonly_hash(
  207:                                                   $current_permissions,$group);
  208:     my %access_controls = &Apache::lonnet::get_access_controls($current_permissions,$group);
  209:     my $now = time;
  210:     if ($env{"form.mode"} eq 'selectfile'){
  211: 	&select_files($r);
  212: 	$checked_files =&Apache::lonnet::files_in_path($uname,$env{'form.currentpath'});
  213: 	$select_mode = 'true';
  214:     } 
  215:     if ($is_empty && ($current_path ne '/') && $can_delete) {
  216:         $display_out = '<form method="post" action="'.$url.'">'.
  217: 	    &group_form_data().
  218:         '<input type="hidden" name="action" value="deletedir" />'.
  219:         '<input type="submit" name="deletedir" value="'.&mt("Delete Directory").'" />'.
  220:         '<input type="hidden" name="selectfile" value="" />'.
  221:         '<input type="hidden" name="currentpath" value="'.$current_path.'" />'.
  222:         '</form>';
  223:         
  224:         $r->print($display_out);
  225: 	return;
  226:     }
  227:     if ($select_mode eq 'true') {
  228:         $r->print('<form method="post" name="checkselect" action="'.$url.'">');
  229:         $r->print('<table id="LC_browser">'.
  230:             '<tr><th>Select</th><th>&nbsp;</th><th>&nbsp;</th><th>Name</th><th>Size</th><th>Last Modified</th></tr>');
  231:     } else {
  232:         $r->print('<form method="post" action="'.$url.'">');
  233:         $r->print('<table id="LC_browser">'.
  234:             '<tr><th colspan="2">Actions</th><th>&nbsp;</th><th>&nbsp;</th><th>Name</th><th>Size</th><th>Last Modified</th><th>Current Access Status</th></tr>');
  235:     }
  236:     $r->print("\n".&group_form_data()."\n");
  237: 
  238:     my $href_location="/uploaded/$udom/$uname/$port_path".$current_path;
  239:     my $href_edit_location="/editupload/$udom/$uname/$port_path".$current_path;
  240:     my @dir_lines;
  241:     my @version_lines;
  242:     my %versioned;
  243:     foreach my $dir_line (sort 
  244: 		      { 
  245: 			  my ($afile)=split('&',$a,2);
  246: 			  my ($bfile)=split('&',$b,2);
  247: 			  return (lc($afile) cmp lc($bfile));
  248: 		      } (@$dir_list)) {
  249:     	#$strip holds directory/file name
  250:     	#$dom 
  251:     	my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef)=split(/\&/,$dir_line,16); 
  252:     	$filename =~ s/\s+$//;
  253:     	my ($fname,$version,$extension) = &Apache::grades::file_name_version_ext($filename);
  254:     	if ($version) {
  255:     	    push(@version_lines, [$filename,$dom,$testdir,$size,$mtime,$obs]);
  256:     	    $versioned{$fname.'.'.$extension} .= $version.",";
  257:     	} else {
  258:     	    push(@dir_lines, [$filename,$dom,$testdir,$size,$mtime,$obs]);
  259:     	}
  260:     }
  261:     foreach my $dir_line (@dir_lines) {
  262:         my ($filename,$dom,$testdir,$size,$mtime,$obs) = @$dir_line;
  263:         my ($fname,$version,$extension) = &Apache::grades::file_name_version_ext($filename);
  264:     	if (($filename ne '.') && ($filename ne '..') && ($filename !~ /\.meta$/ ) && ($filename !~ /(.*)\.(\d+)\.([^\.]*)$/)) {
  265:     	    my %version_flag;
  266:     	    my $show_versions;
  267:     	    if ($env{'form.showversions'} eq $filename) {
  268:     	        $show_versions = 'true';
  269:     	    }
  270:     	    if (exists($versioned{$filename})) {
  271:     	        if ($show_versions) {
  272:                     $version_flag{$filename} = '<a href="portfolio?selectfile='.$filename.'&amp;continue=false&amp;currentpath='.$current_path.'"><img class="LC_icon" alt="'.&mt('opened folder').'" src="'.$iconpath.'folder_pointer_opened.gif" /></a>';
  273:     	        } else {
  274:                     $version_flag{$filename} = '<a href="portfolio?selectfile='.$filename.'&amp;continue=false&amp;currentpath='.$current_path.'&amp;showversions='.$filename.'"><img class="LC_icon" alt="'.&mt('closed folder').'" src="'.$iconpath.'folder_pointer_closed.gif" /></a>';
  275:                 }
  276:     	    } else {
  277:     	        $version_flag{$filename} = '&nbsp;';
  278:     	    }
  279:             if ($dirptr&$testdir) {
  280: 		my $colspan='colspan="2"';
  281:                 if ($select_mode eq 'true'){
  282: 		    undef($colspan);
  283:                 }
  284: 		$r->print('<tr class="LC_browser_folder"><td '.$colspan.'><img alt="'.&mt('closed folder').'" src="'.$iconpath.'folder_closed.gif" /></td>');
  285:                 $r->print('<td>Go to ...</td>');
  286:                 my %anchor_fields = ();
  287:                 %anchor_fields = (
  288:                     'selectfile'    => $filename.'/',
  289:                     'currentpath'   => $current_path.$filename.'/',
  290:                     'mode'          => $env{"form.mode"},
  291:                     'fieldname'     => $env{"form.fieldname"},
  292:                     'continue'      => $env{"form.continue"}
  293:                 );  
  294:                 $r->print('<td>'.$version_flag{$filename}.'</td><td>'.&make_anchor($url,\%anchor_fields,$filename.'/').'</td>'); 
  295:                 $r->print('</tr>'); 
  296:             } else {
  297: 		my $css_class = 'LC_browser_file';
  298: 		my $line;
  299:                 my $fullpath = $current_path.$filename;
  300:                 $fullpath = &prepend_group($fullpath);
  301:                 if ($select_mode eq 'true') {
  302:                     $line='<td><input type="checkbox" name="checkfile" value="'.$filename.'"';
  303: 		    if ($$checked_files{$filename} eq 'selected') {
  304:                         $line.=" checked ";
  305:                     }
  306: 		    $line.=' /></td>';
  307:                 } else {
  308:                     if (exists $locked_files{$fullpath}) {
  309:                         $line.='<td colspan="2"><a href="'.$url.'?lockinfo='.$current_path.$filename.&group_args().'">Locked</a></td>';
  310: 			$css_class= 'LC_browser_file_locked';
  311:                     } else {
  312:                         if (!$can_modify) {
  313:                             $line .= '<td colspan="2">';
  314:                         } else {
  315:                             $line .= '<td>';
  316:                         }
  317:                         if ($can_delete) {
  318:                             $line .= '<input type="checkbox" name="selectfile" value="'.$filename.'" />';
  319:                         }
  320:                         if ($can_modify) {
  321:                             my $cat='<img class="LC_icon" alt="'.&mt('Catalog Information').
  322:                             '" src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/catalog.gif').'" />';
  323:                             $line .= '<a href="'.$url.'?rename='.$filename.'&amp;currentpath='.$current_path.&group_args().'">Rename</a>';
  324:                             $line .= '</td><td>'.'<a href="'.$href_edit_location.$filename.'.meta">'.$cat.'</a>';
  325:                         }
  326:                         $line .= '</td>';
  327:                     }
  328:                 }
  329: 		my $curr_access;
  330: 		if ($select_mode ne 'true') {
  331: 		    my $pub_access = 0;
  332: 		    my $guest_access = 0;
  333: 		    my $cond_access = 0;
  334: 		    foreach my $key (sort(keys(%{$access_controls{$fullpath}}))) {
  335: 			my ($num,$scope,$end,$start) = &unpack_acc_key($key);
  336: 			if (($now > $start) && (!$end || $end > $now)) {
  337: 			    if ($scope eq 'public')  {
  338: 				$pub_access = 1;
  339: 			    } elsif ($scope eq 'guest') {
  340: 				$guest_access = 1;
  341: 			    } else {
  342: 				$cond_access = 1;
  343: 			    }
  344: 			}
  345: 		    }
  346: 		    if (!$pub_access && !$guest_access && !$cond_access) {
  347: 			$curr_access = &mt('Private');
  348: 		    } else {
  349: 			my @allaccesses; 
  350: 			if ($pub_access) {
  351: 			    push(@allaccesses,&mt('Public'));
  352: 			}
  353: 			if ($guest_access) {
  354: 			    push(@allaccesses,&mt('Passphrase-protected'));
  355: 			}
  356: 			if ($cond_access) {
  357: 			    push(@allaccesses,&mt('Conditional'));
  358: 			}
  359: 			$curr_access = join('+ ',@allaccesses);
  360: 		    }
  361: 		}
  362:                 &display_directory_line($r,$select_mode,$fullpath, $filename, $mtime, $size, $css_class, $line, 
  363:                                         \%access_controls, $curr_access,$now, \%version_flag, $href_location, 
  364:                                         $url, $current_path, $access_admin_text);
  365: 		if ($show_versions) {
  366: 		    foreach my $dir_line (@version_lines) {
  367: 		        my ($v_filename,$dom,$testdir,$size,$mtime,$obs) = @$dir_line;
  368:                         my ($v_fname,$version,$v_extension) = &Apache::grades::file_name_version_ext($v_filename);
  369:                         $line = '<td colspan="2">&nbsp;</td>';
  370:                         if (($v_fname eq $fname)&&($v_extension eq $extension)) {
  371: 		            &display_directory_line($r,$select_mode,$fullpath, $v_filename, $mtime, $size, 
  372: 		                            $css_class, $line, \%access_controls, $curr_access, $now,
  373: 		                             \%version_flag, $href_location, $url, $current_path, $access_admin_text, 1);
  374: 		        }
  375: 		    }
  376: 		}
  377:             }
  378:         }
  379:     }
  380:     if ($select_mode eq 'true') {
  381:         $r->print('</table>
  382:             <input type="hidden" name="continue" value="true" />
  383:             <input type="hidden" name="fieldname" value="'.$env{'form.fieldname'}.'" />
  384:             <input type="hidden" name="mode" value="selectfile" />
  385:             <input type="submit" name="submit" value="Select checked files, and continue selecting." /><br />
  386:             <input type="button" name="doit" onClick= "finishSelect();" value="Select checked files, and close window" />
  387:             <input type="hidden" name="currentpath" value="'.$current_path.'" />
  388:         </form>');        
  389:     } else {
  390:         $r->print('</table>');
  391:         if ($can_delete) {
  392:             $r->print('
  393:         <input type="submit" name="doit" value="Delete Checked Files" />
  394:         <input type="hidden" name="action" value="delete" />
  395:         <input type="hidden" name="currentpath" value="'.$current_path.'" />
  396:         </form>'
  397:             );
  398:         }
  399:     }
  400: }
  401: 
  402: sub open_form {
  403:     my ($r,$url)=@_;
  404:     my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
  405:     $r->print('<form name="portform" method="post" action="'.$url.'">');
  406:     $r->print('<input type="hidden" name="action" value="'.
  407: 	      $env{'form.action'}.'" />');
  408:     $r->print('<input type="hidden" name="confirmed" value="1" />');
  409:     foreach (@files) {
  410:         $r->print('<input type="hidden" name="selectfile" value="'.
  411: 	      $_.'" />');
  412:     }
  413:     $r->print('<input type="hidden" name="currentpath" value="'.
  414: 	      $env{'form.currentpath'}.'" />');
  415: }
  416: 
  417: sub close_form {
  418:     my ($r,$url,$button_text)=@_;
  419:     if (!defined($button_text)) {
  420:         $button_text = {
  421:                          'continue' => &mt('Continue'),
  422:                          'cancel'   => &mt('Cancel'),
  423:                        };
  424:     }
  425:     $r->print('<p><input type="submit" value="'.$button_text->{'continue'}.'" />');
  426:     $r->print(&group_form_data().'</p></form>');
  427:     $r->print('<form action="'.$url.'" method="post">
  428:                <p>
  429:               <input type="hidden" name="currentpath" value="'.
  430: 	      $env{'form.currentpath'}.'" />'.
  431: 	      &group_form_data());
  432:     $r->print("\n".'   <input type="submit" value="'.$button_text->{'cancel'}.'" />
  433:                </p></form>'); 
  434: }
  435: 
  436: sub display_file {
  437:     my ($path,$filename)=@_;
  438:     my $display_file_text;
  439:     my $file_start='<span class="LC_filename">';
  440:     my $file_end='</span>';
  441:     if (!defined($path)) { $path=$env{'form.currentpath'}; }
  442:     if (!defined($filename)) { 
  443:         $filename=$env{'form.selectfile'};
  444:         $display_file_text = $file_start.$path.$filename.$file_end;
  445:     } elsif (ref($filename) eq "ARRAY") {
  446:         foreach my $file (@$filename) {
  447:             $display_file_text .= $file_start.$path.$file.$file_end.'<br />';
  448:         }
  449:     } elsif (ref($filename) eq "SCALAR") {
  450:         $display_file_text = $file_start.$path.$$filename.$file_end;
  451:     } else {
  452: 	$display_file_text = $file_start.$path.$filename.$file_end;
  453:     }
  454:     return $display_file_text;
  455: }
  456: 
  457: sub done {
  458:     my ($message,$url)=@_;
  459:     unless (defined $message) {
  460:         $message='Done';
  461:     }
  462:     my $result = '<h3><a href="'.$url.'?currentpath='.
  463: 	         $env{'form.currentpath'}.
  464: 	         '&fieldname='.$env{'form.fieldname'}.
  465: 	         '&mode='.$env{'form.mode'}.
  466: 		 &group_args();
  467:     $result .= '">'.&mt($message).'</a></h3>';
  468:     return $result;
  469: }
  470: 
  471: sub delete {
  472:     my ($r,$url)=@_;
  473:     my @check;
  474:     my $file_name = $env{'form.currentpath'}.$env{'form.selectfile'};
  475:     $file_name = &prepend_group($file_name);
  476:     my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
  477:     my ($uname,$udom) = &get_name_dom();
  478:     if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
  479:         $r->print ("The file is locked and cannot be deleted.<br />");
  480:         $r->print(&done('Back',$url));
  481:     } else {
  482:         if (scalar(@files)) {
  483:             &open_form($r,$url);
  484:             $r->print('<p>'.&mt('Delete').' '.&display_file(undef,\@files).'?</p>');
  485:             &close_form($r,$url);
  486:         } else {
  487:             $r->print("No file was checked to delete.<br />");
  488:             $r->print(&done(undef,$url));
  489:         }
  490:     }
  491: } 
  492: 
  493: sub delete_confirmed {
  494:     my ($r,$url)=@_;
  495:     my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
  496:     my $result;
  497:     my ($uname,$udom) = &get_name_dom();
  498:     my $port_path = &get_port_path();
  499:     foreach my $delete_file (@files) {
  500:         $result=&Apache::lonnet::removeuserfile($uname,$udom,$port_path.
  501: 					       $env{'form.currentpath'}.
  502: 					       $delete_file);
  503:         if ($result ne 'ok') {
  504: 	$r->print('<span class="LC_error"> An error occured ('.$result.
  505: 		  ') while trying to delete '.&display_file(undef, $delete_file).'</span><br />');
  506:         }
  507:     }
  508:     $r->print(&done(undef,$url));
  509: }
  510: 
  511: sub delete_dir {
  512:     my ($r,$url)=@_;
  513:     &open_form($r,$url);
  514:     $r->print('<p>'.&mt('Delete').' '.&display_file().'?</p>');
  515:     &close_form($r,$url);
  516: } 
  517: 
  518: sub delete_dir_confirmed {
  519:     my ($r,$url)=@_;
  520:     my $directory_name = $env{'form.currentpath'};
  521:     $directory_name =~ s|/$||; # remove any trailing slash
  522:     my ($uname,$udom) = &get_name_dom();
  523:     my $namespace = &get_namespace();
  524:     my $port_path = &get_port_path();
  525:     my $result=&Apache::lonnet::removeuserfile($uname,$udom,$port_path.
  526: 					       $directory_name);
  527: 					       
  528:     if ($result ne 'ok') {
  529: 	$r->print('<span class="LC_error"> An error occured (dir) ('.$result.
  530: 		  ') while trying to delete '.$directory_name.'</span><br />');
  531:     } else {
  532:         # now remove from recent
  533: #        $r->print('<br /> removing '.$directory_name.'<br /');
  534:         &Apache::lonhtmlcommon::remove_recent($namespace,[$directory_name.'/']);
  535:         my @dirs = split m!/!, $directory_name;
  536:         
  537: #        $directory_name =~ m/^(\/*\/)(\/*.)$/;
  538:         $directory_name='/';
  539:         for (my $i=1; $i < (@dirs - 1); $i ++){
  540:             $directory_name .= $dirs[$i].'/';
  541:         }
  542:         $env{'form.currentpath'} = $directory_name;
  543:     }
  544:     $r->print(&done(undef,$url));
  545: }
  546: 
  547: sub rename {
  548:     my ($r,$url)=@_;
  549:     my $file_name = $env{'form.currentpath'}.$env{'form.rename'};
  550:     my ($uname,$udom) = &get_name_dom();
  551:     $file_name = &prepend_group($file_name);
  552:     if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
  553:         $r->print ("The file is locked and cannot be renamed.<br />");
  554:         $r->print(&done(undef,$url));
  555:     } else {
  556:         &open_form($r,$url);
  557:         $r->print('<p>'.&mt('Rename').' '.&display_file().' to 
  558:                    <input name="filenewname" type="input" size="50" />?</p>');
  559:         &close_form($r,$url);
  560:     }
  561: }
  562: 
  563: sub rename_confirmed {
  564:     my ($r,$url)=@_;
  565:     my $filenewname=&Apache::lonnet::clean_filename($env{'form.filenewname'});
  566:     my ($uname,$udom) = &get_name_dom();
  567:     my $port_path = &get_port_path();
  568:     if ($filenewname eq '') {
  569: 	$r->print('<span class="LC_error">'.
  570: 		  &mt("Error: no valid filename was provided to rename to.").
  571: 		  '</span><br />');
  572: 	$r->print(&done(undef,$url));
  573: 	return;
  574:     } 
  575:     my $result=
  576: 	&Apache::lonnet::renameuserfile($uname,$udom,
  577:             $port_path.$env{'form.currentpath'}.$env{'form.selectfile'},
  578:             $port_path.$env{'form.currentpath'}.$filenewname);
  579:     if ($result ne 'ok') {
  580: 	$r->print('<span class="LC_error">'.
  581: 		  &mt('An errror occured ([_1]) while trying to rename [_2]'
  582: 		      .' to [_3]',$result,&display_file(),
  583: 		      &display_file('',$filenewname)).'</span><br />');
  584:     }
  585:     if ($filenewname ne $env{'form.filenewname'}) {
  586:         $r->print(&mt("The new file name was changed from:<br />[_1] to [_2]",
  587: 		      '<strong>'.&display_file('',$env{'form.filenewname'}).'</strong>',
  588: 		      '<strong>'.&display_file('',$filenewname).'</strong>'));
  589:     }
  590:     $r->print(&done(undef,$url));
  591: }
  592: 
  593: sub display_access {
  594:     my ($r,$url,$group,$can_setacl,$port_path) = @_;
  595:     my ($uname,$udom) = &get_name_dom();
  596:     my $file_name = $env{'form.currentpath'}.$env{'form.access'};
  597:     $file_name = &prepend_group($file_name);
  598:     my $current_permissions = &Apache::lonnet::get_portfile_permissions($udom,
  599:                                                                         $uname);
  600:     my %access_controls = &Apache::lonnet::get_access_controls($current_permissions,$group,$file_name);
  601:     my $aclcount = keys(%access_controls);
  602:     my $header = '<h3>'.&mt('Allowing others to retrieve file: [_1]',$port_path.$env{'form.currentpath'}.$env{'form.access'}).'</h3>';
  603:     my $info .= &mt('Access to this file by others can be set to be one or more of the following types: public, passphrase-protected or conditional.').'<br /><ul><li>'.&mt('Public files are available to anyone without the need for login.').'</li><li>'.&mt('Passphrase-protected files do not require log-in, but will require the viewer to enter the passphrase you set.').'</li><li>'.&mt('Conditional files are accessible to logged-in users with accounts in the LON-CAPA network, who satisfy the conditions you set.').'<br />'.&mt('The conditions can include affiliation with a particular course or group, or a user account in a specific domain.').'<br />'.&mt('Alternatively access can be granted to people with specific LON-CAPA usernames and domains.').'</li></ul>';
  604: 
  605:     if ($group eq '') {
  606:         $info .= (&mt("Direct others to the 'Display file listing' link (shown when there are viewable files) on your personal information page:<br /><a href='/adm/$udom/$uname/aboutme'>http://$ENV{'SERVER_NAME'}/adm/$udom/$uname/aboutme</a>"));
  607:     }
  608:     
  609:     if ($can_setacl) {
  610:         &open_form($r,$url);
  611:         $r->print($header.$info);
  612:         &access_setting_table($r,$access_controls{$file_name});
  613:         my $button_text = {
  614:                         'continue' => &mt('Proceed'),
  615:                         'cancel' => &mt('Back to directory listing'),
  616:                       };
  617:         &close_form($r,$url,$button_text);
  618:     } else {
  619:         $r->print($header);
  620:         if ($aclcount) {  
  621:             $r->print($info);
  622:         }
  623:         &view_access_settings($r,$url,$access_controls{$file_name},$aclcount);
  624:     }
  625: }
  626: 
  627: sub view_access_settings {
  628:     my ($r,$url,$access_controls,$aclcount) = @_;
  629:     my ($showstart,$showend);
  630:     my %todisplay;
  631:     foreach my $key (sort(keys(%{$access_controls}))) {
  632:         my ($num,$scope,$end,$start) = &unpack_acc_key($key);
  633:         $todisplay{$scope}{$key} = $$access_controls{$key};
  634:     }
  635:     if ($aclcount) {
  636:         $r->print(&mt('<h4>Current access controls defined for this file:</h4>'));
  637:         $r->print(&Apache::loncommon::start_data_table());
  638:         $r->print(&Apache::loncommon::start_data_table_header_row());
  639:         $r->print('<th>'.&mt('Access control').'</th><th>'.&mt('Dates available').
  640:                   '</th><th>'.&mt('Additional information').'</th>');
  641:         $r->print(&Apache::loncommon::end_data_table_header_row());
  642:         my $count = 1;
  643:         my $chg = 'none';
  644:         &build_access_summary($r,$count,$chg,%todisplay);
  645:         $r->print(&Apache::loncommon::end_data_table());
  646:     } else {
  647:         $r->print(&mt('No access control settings currently exist for this file.<br />' ));
  648:     }
  649:     $r->print('<br /><a href="'.$url.'?currentpath='.$env{'form.currentpath'}.
  650:               &group_args().'">'.&mt('Return to directory listing').'</a>');
  651:     return;
  652: }
  653: 
  654: sub build_access_summary {
  655:     my ($r,$count,$chg,%todisplay) = @_; 
  656:     my ($showstart,$showend);
  657:     my %scope_desc = (
  658:                       public => 'Public',
  659:                       guest => 'Passphrase-protected',
  660:                       domains => 'Conditional: domain-based',
  661:                       users => 'Conditional: user-based',
  662:                       course => 'Conditional: course-based',
  663:                       group => 'Conditional: group-based',
  664:                      );
  665:     my @allscopes = ('public','guest','domains','users','course','group');
  666:     foreach my $scope (@allscopes) {
  667:         if ((!(exists($todisplay{$scope}))) || (ref($todisplay{$scope}) ne 'HASH')) {
  668:             next;
  669:         }
  670:         foreach my $key (sort(keys(%{$todisplay{$scope}}))) {
  671:             if ($count) {
  672:                 $r->print(&Apache::loncommon::start_data_table_row());
  673:             }
  674:             my ($num,$scope,$end,$start) = &unpack_acc_key($key);
  675:             my $content = $todisplay{$scope}{$key};
  676:             if ($chg eq 'delete') {
  677:                 $showstart = &mt('Deleted');
  678:                 $showend = $showstart;
  679:             } else {
  680:                 $showstart = localtime($start);
  681:                 if ($end == 0) {
  682:                     $showend = &mt('No end date');
  683:                 } else {
  684:                     $showend = localtime($end);
  685:                 }
  686:             }
  687:             $r->print('<td>'.&mt($scope_desc{$scope}));
  688:             if (($scope eq 'course') || ($scope eq 'group')) {
  689:                 if ($chg ne 'delete') {
  690:                     my $cid = $content->{'domain'}.'_'.$content->{'number'};
  691:                     my %course_description = &Apache::lonnet::coursedescription($cid);
  692:                     $r->print('<br />('.$course_description{'description'}.')');
  693:                 }
  694:             }
  695:             $r->print('</td><td>'.&mt('Start: ').$showstart.
  696:                   '<br />'.&mt('End: ').$showend.'</td><td>');
  697:             if ($chg ne 'delete') {
  698:                 if ($scope eq 'guest') {
  699:                     $r->print(&mt('Passphrase').': '.$content->{'password'});
  700:                 } elsif ($scope eq 'course' || $scope eq 'group') {
  701:                     $r->print('<table><tr>');
  702:                     $r->print('<th>'.&mt('Roles').'</th><th>'.
  703:                           &mt('Access').'</th><th>'.
  704:                                           &mt('Sections').'</th>');
  705:                     if ($scope eq 'course') {
  706:                         $r->print('<th>'.&mt('Groups').'</th>');
  707:                     } else {
  708:                         $r->print('<th>'.&mt('Teams').'</th>');
  709:                     }
  710:                     $r->print('</tr>');
  711:                     foreach my $id (sort(keys(%{$content->{'roles'}}))) {
  712:                         $r->print('<tr>');
  713:                         foreach my $item ('role','access','section','group') {
  714:                             $r->print('<td>');
  715:                             if ($item eq 'role') {
  716:                                 my $ucscope = $scope;
  717:                                 $ucscope =~ s/^(\w)/uc($1)/e;
  718:                                 my $role_output;
  719:                                 foreach my $role (@{$content->{'roles'}{$id}{$item}}) {
  720:                                     if ($role eq 'all') {
  721:                                         $role_output .= $role.',';
  722:                                     } elsif ($role =~ /^cr/) {
  723:                                         $role_output .= (split('/',$role))[3].',';
  724:                                     } else {
  725:                                         $role_output .= &Apache::lonnet::plaintext($role,$ucscope).',';
  726:                                     }
  727:                                 }
  728:                                 $role_output =~ s/,$//;
  729:                                 $r->print($role_output);
  730:                             } else {
  731:                                 $r->print(join(',',@{$content->{'roles'}{$id}{$item}}));
  732:                             }
  733:                             $r->print('</tr>');
  734:                         }
  735: 			$r->print("</table>");
  736:                     }
  737: 		    $r->print("</tr></table>");
  738:                 } elsif ($scope eq 'domains') {
  739:                     $r->print(&mt('Domains: ').join(',',@{$content->{'dom'}}));
  740:                 } elsif ($scope eq 'users') {
  741:                     my $curr_user_list = &sort_users($content->{'users'});
  742:                     $r->print(&mt('Users: ').$curr_user_list);
  743:                 } else {
  744:                     $r->print('&nbsp;');
  745:                 }
  746:             } else {
  747:                 $r->print('&nbsp;');
  748:             }
  749:             $r->print('</td>');
  750:             $r->print(&Apache::loncommon::end_data_table_row());
  751:             $count ++;
  752:         }
  753:     }
  754: }
  755: 
  756: 
  757: sub update_access {
  758:     my ($r,$url,$group,$port_path) = @_;
  759:     my $totalprocessed = 0;
  760:     my %processing;
  761:     my %title  = (
  762:                          'activate' => 'New control(s) added',
  763:                          'delete'   => 'Existing control(s) deleted',
  764:                          'update'   => 'Existing control(s) modified',
  765:                      );
  766:     my $changes;
  767:     foreach my $chg (sort(keys(%title))) {     
  768:         @{$processing{$chg}} = &Apache::loncommon::get_env_multiple('form.'.$chg);
  769:         $totalprocessed += @{$processing{$chg}};
  770:         foreach my $num (@{$processing{$chg}}) {
  771:             my $scope = $env{'form.scope_'.$num};
  772:             my ($start,$end) = &get_dates_from_form($num);
  773:             my $newkey = $num.':'.$scope.'_'.$end.'_'.$start;
  774:             if ($chg eq 'delete') {
  775:                 $$changes{$chg}{$newkey} = 1;
  776:             } else {
  777:                 $$changes{$chg}{$newkey} = 
  778:                             &build_access_record($num,$scope,$start,$end,$chg);
  779:             }
  780:         }
  781:     }
  782:     my $file_name = $env{'form.currentpath'}.$env{'form.selectfile'};
  783:     $r->print('<h3>'.&mt('Allowing others to retrieve file: [_1]',
  784:               $port_path.$file_name).'</h3>'."\n");
  785:     $file_name = &prepend_group($file_name);
  786:     my ($uname,$udom) = &get_name_dom();
  787:     my ($errors,$outcome,$deloutcome,$new_values,$translation);
  788:     if ($totalprocessed) {
  789:         ($outcome,$deloutcome,$new_values,$translation) =
  790:         &Apache::lonnet::modify_access_controls($file_name,$changes,$udom,
  791:                                                 $uname);
  792:     }
  793:     my $current_permissions = &Apache::lonnet::get_portfile_permissions($udom,
  794:                                                                        $uname);
  795:     my %access_controls = 
  796: 	&Apache::lonnet::get_access_controls($current_permissions,
  797: 					     $group,$file_name);
  798:     if ($totalprocessed) {
  799:         if ($outcome eq 'ok') {
  800:             my $updated_controls = $access_controls{$file_name};
  801:             my ($showstart,$showend);
  802:             $r->print(&Apache::loncommon::start_data_table());
  803:             $r->print(&Apache::loncommon::start_data_table_header_row());
  804:             $r->print('<th>'.&mt('Type of change').'</th><th>'.
  805:                       &mt('Access control').'</th><th>'.&mt('Dates available').
  806:                       '</th><th>'.&mt('Additional information').'</th>');
  807:             $r->print(&Apache::loncommon::end_data_table_header_row());
  808:             foreach my $chg (sort(keys(%processing))) {
  809:                 if (@{$processing{$chg}} > 0) {
  810:                     if ($chg eq 'delete') {
  811:                         if (!($deloutcome eq 'ok')) {
  812:                             $errors .='<span class="LC_error">'.
  813: 				&mt('A problem occurred deleting access controls: [_1]',$deloutcome).
  814: 				'</span>';
  815:                             next;
  816:                         }
  817:                     }
  818:                     my $numchgs = @{$processing{$chg}};
  819:                     $r->print(&Apache::loncommon::start_data_table_row());
  820:                     $r->print('<td rowspan="'.$numchgs.'">'.&mt($title{$chg}).
  821:                               '.</td>');
  822:                     my $count = 0;
  823:                     my %todisplay;
  824:                     foreach my $key (sort(keys(%{$$changes{$chg}}))) {
  825:                         my ($num,$scope,$end,$start) = &unpack_acc_key($key);
  826:                         my $newkey = $key;
  827:                         if ($chg eq 'activate') {
  828:                             $newkey =~ s/^(\d+)/$$translation{$1}/;
  829:                         }
  830:                         $todisplay{$scope}{$newkey} = $$updated_controls{$newkey};
  831:                     }
  832:                     &build_access_summary($r,$count,$chg,%todisplay);  
  833:                 }
  834:             }
  835:             $r->print(&Apache::loncommon::end_data_table());
  836:         } else {
  837:             if ((@{$processing{'activate'}} > 0) || (@{$processing{'update'}} > 0)) {
  838:                 $errors .= '<span class="LC_error">'.
  839: 		    &mt('A problem occurred storing access control settings: [_1]',$outcome).
  840: 		    '</span>';
  841:             }
  842:         }
  843:         if ($errors) { 
  844:             $r->print($errors);
  845:         }
  846:     }
  847:     my $allnew = 0;
  848:     my $totalnew = 0;
  849:     my $status = 'new';
  850:     my ($firstitem,$lastitem);
  851:     foreach my $newitem ('course','group','domains','users') {
  852:         $allnew += $env{'form.new'.$newitem};
  853:     }
  854:     if ($allnew > 0) {
  855:         my $now = time;
  856:         my $then = $now + (60*60*24*180); # six months approx.
  857:         &open_form($r,$url);
  858:         foreach my $newitem ('course','group','domains','users') {
  859:             if ($env{'form.new'.$newitem} > 0) {
  860:                 $r->print('<br />'.&mt('Add new <b>[_1]-based</b> access control for portfolio file: <b>[_2]</b>',$newitem,$env{'form.currentpath'}.$env{'form.selectfile'}).'<br /><br />');
  861:                 $firstitem = $totalnew;
  862:                 $lastitem = $totalnew + $env{'form.new'.$newitem};
  863:                 $totalnew = $lastitem;
  864:                 my @numbers;   
  865:                 for (my $i=$firstitem; $i<$lastitem; $i++) {
  866:                     push (@numbers,$i);
  867:                 }
  868:                 &display_access_row($r,$status,$newitem,\@numbers,
  869:                                     $access_controls{$file_name},$now,$then);
  870:             }
  871:         }
  872:         &close_form($r,$url);
  873:     } else {
  874:         $r->print('<br /><a href="'.$url.'?access='.$env{'form.selectfile'}.
  875:                   '&amp;currentpath='.$env{'form.currentpath'}.&group_args().'">'.
  876:                    &mt('Display all access settings for this file').'</a>'.
  877:                   '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.
  878:                   '<a href="'.$url.'?currentpath='.$env{'form.currentpath'}.
  879:                   &group_args().'">'.&mt('Return to directory listing').'</a>');
  880:     }
  881:     return;
  882: }
  883: 
  884: sub build_access_record {
  885:     my ($num,$scope,$start,$end,$chg) = @_;
  886:     my $record = {
  887: 	type => $scope,
  888: 	time => {
  889: 	    start => $start,
  890: 	    end   => $end
  891: 	    },
  892: 	    };
  893: 		
  894:     if ($scope eq 'guest') {	
  895:         $record->{'password'} = $env{'form.password'};
  896:     } elsif (($scope eq 'course') || ($scope eq 'group')) {
  897:         $record->{'domain'} = $env{'form.crsdom_'.$num};
  898: 	$record->{'number'} = $env{'form.crsnum_'.$num};
  899:         my @role_ids;
  900:         my @delete_role_ids =
  901:             &Apache::loncommon::get_env_multiple('form.delete_role_'.$num);
  902: 	my @preserves =
  903: 	    &Apache::loncommon::get_env_multiple('form.preserve_role_'.$num);
  904: 	if (@delete_role_ids) {
  905: 	    foreach my $id (@preserves) {
  906: 		if (grep {$_ = $id} (@delete_role_ids)) {
  907: 		    next;
  908: 		}
  909: 		push(@role_ids,$id); 
  910: 	    }
  911: 	} else {
  912: 	    push(@role_ids,@preserves);
  913: 	}
  914: 
  915: 	my $next_id = $env{'form.add_role_'.$num};
  916: 	if ($next_id) {
  917: 	    push(@role_ids,$next_id);
  918: 	}
  919: 
  920:         foreach my $id (@role_ids) {
  921:             my (@roles,@accesses,@sections,@groups);
  922:             if (($id == $next_id) && ($chg eq 'update')) {
  923:                 @roles    = split(/,/,$env{'form.role_'.$num.'_'.$next_id});
  924:                 @accesses = split(/,/,$env{'form.access_'.$num.'_'.$next_id});
  925:                 @sections = split(/,/,$env{'form.section_'.$num.'_'.$next_id});
  926:                 @groups   = split(/,/,$env{'form.group_'.$num.'_'.$next_id});
  927:             } else {
  928:                 @roles = &Apache::loncommon::get_env_multiple('form.role_'.$num.'_'.$id);
  929:                 @accesses = &Apache::loncommon::get_env_multiple('form.access_'.$num.'_'.$id);
  930:                 @sections = &Apache::loncommon::get_env_multiple('form.section_'.$num.'_'.$id);
  931:                 @groups = &Apache::loncommon::get_env_multiple('form.group_'.$num.'_'.$id);
  932:             }
  933: 	    $record->{'roles'}{$id}{'role'}    = \@roles;
  934: 	    $record->{'roles'}{$id}{'access'}  = \@accesses;
  935: 	    $record->{'roles'}{$id}{'section'} = \@sections;
  936: 	    $record->{'roles'}{$id}{'group'}   = \@groups;
  937:         }
  938:     } elsif ($scope eq 'domains') {
  939:         my @doms = &Apache::loncommon::get_env_multiple('form.dom_'.$num);
  940: 	$record->{'dom'} = \@doms;
  941:     } elsif ($scope eq 'users') {
  942:         my $userlist = $env{'form.users_'.$num};
  943:         $userlist =~ s/\s+//sg;
  944: 	my %userhash = map { ($_,1) } (split(/,/,$userlist));
  945:         foreach my $user (keys(%userhash)) {
  946:             my ($uname,$udom) = split(/:/,$user);
  947: 	    push(@{$record->{'users'}}, {
  948: 		'uname' => $uname,
  949: 		'udom'  => $udom
  950: 		});
  951: 	}
  952:     }
  953:     return $record;
  954: }
  955: 
  956: sub get_dates_from_form {
  957:     my ($id) = @_;
  958:     my $startdate;
  959:     my $enddate;
  960:     $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate_'.$id);
  961:     $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate_'.$id);
  962:     if ( exists ($env{'form.noend_'.$id}) ) {
  963:         $enddate = 0;
  964:     }
  965:     return ($startdate,$enddate);
  966: }
  967: 
  968: sub sort_users {
  969:     my ($users) = @_; 
  970:     my @curr_users = map {
  971: 	$_->{'uname'}.':'.$_->{'udom'}
  972:     } (@{$users});
  973:     my $curr_user_list = join(",\n",sort(@curr_users));
  974:     return $curr_user_list;
  975: }
  976: 
  977: sub access_setting_table {
  978:     my ($r,$access_controls) = @_;
  979:     my ($public,$publictext);
  980:     $publictext = &mt('Off');
  981:     my ($guest,$guesttext);
  982:     $guesttext = &mt('Off');
  983:     my @courses = ();
  984:     my @groups = ();
  985:     my @domains = ();
  986:     my @users = ();
  987:     my $now = time;
  988:     my $then = $now + (60*60*24*180); # six months approx.
  989:     my ($num,$scope,$publicnum,$guestnum);
  990:     my (%acl_count,%end,%start);
  991:     foreach my $key (sort(keys(%{$access_controls}))) {
  992:         ($num,$scope,$end{$key},$start{$key}) = &unpack_acc_key($key);
  993:         if ($scope eq 'public') {
  994:             $public = $key;
  995:             $publicnum = $num;
  996:             $publictext = &acl_status($start{$key},$end{$key},$now);
  997:         } elsif ($scope eq 'guest') {
  998:             $guest=$key;
  999:             $guestnum = $num;  
 1000:             $guesttext = &acl_status($start{$key},$end{$key},$now);
 1001:         } elsif ($scope eq 'course') {
 1002:             push(@courses,$key);
 1003:         } elsif ($scope eq 'group') {
 1004:             push(@groups,$key);
 1005:         } elsif ($scope eq 'domains') {
 1006:             push(@domains,$key);
 1007:         } elsif ($scope eq 'users') {
 1008:             push(@users,$key);
 1009:         }
 1010:         $acl_count{$scope} ++;
 1011:     }
 1012:     $r->print('<table border="0"><tr><td valign="top">');
 1013:     $r->print('<h3>'.&mt('Public access:').' '.$publictext.'</h3>');
 1014:     $r->print(&Apache::loncommon::start_data_table());
 1015:     $r->print(&Apache::loncommon::start_data_table_header_row());
 1016:     $r->print('<th>'.&mt('Action').'</th><th>'.&mt('Dates available').'</th>');
 1017:     $r->print(&Apache::loncommon::end_data_table_header_row());
 1018:     $r->print(&Apache::loncommon::start_data_table_row());
 1019:     if ($public) {
 1020:         $r->print('<td>'.&actionbox('old',$publicnum,'public').'</td><td>'.
 1021:                   &dateboxes($publicnum,$start{$public},$end{$public}).'</td>');
 1022:     } else {
 1023:         $r->print('<td>'.&actionbox('new','0','public').'</td><td>'.
 1024:                   &dateboxes('0',$now,$then).'</td>');
 1025:     }
 1026:     $r->print(&Apache::loncommon::end_data_table_row());
 1027:     $r->print(&Apache::loncommon::end_data_table());
 1028:     $r->print('</td><td width="40">&nbsp;</td><td valign="top">');
 1029:     $r->print('<h3>'.&mt('Passphrase-protected access:').' '.$guesttext.'</h3>');
 1030:     $r->print(&Apache::loncommon::start_data_table());
 1031:     $r->print(&Apache::loncommon::start_data_table_header_row());
 1032:     $r->print('<th>'.&mt('Action').'</th><th>'.&mt('Dates available').
 1033:               '</th><th>'. &mt('Passphrase').'</th>');
 1034:     $r->print(&Apache::loncommon::end_data_table_header_row());
 1035:     $r->print(&Apache::loncommon::start_data_table_row());
 1036:     my $passwd;
 1037:     if ($guest) {
 1038:         $passwd = $$access_controls{$guest}{'password'};
 1039:         $r->print('<td>'.&actionbox('old',$guestnum,'guest').'</td><td>'.
 1040:                   &dateboxes($guestnum,$start{$guest},$end{$guest}).'</td>');
 1041:     } else {
 1042:         $r->print('<td>'.&actionbox('new','1','guest').'</td><td>'.
 1043:                   &dateboxes('1',$now,$then).'</td>');
 1044:     }
 1045:     $r->print('<td><input type="text" size="15" name="password" value="'.
 1046:               $passwd.'" /></td>');
 1047:     $r->print(&Apache::loncommon::end_data_table_row());
 1048:     $r->print(&Apache::loncommon::end_data_table());
 1049:     $r->print('</td></tr><tr><td colspan="3">&nbsp;</td></tr><tr><td valign="top">');
 1050:     &access_element($r,'domains',\%acl_count,\@domains,$access_controls,$now,$then);
 1051:     $r->print('</td><td>&nbsp;</td><td valign="top">');
 1052:     &access_element($r,'users',\%acl_count,\@users,$access_controls,$now,$then);
 1053:     $r->print('</td></tr><tr><td colspan="3"></td></tr><tr>');
 1054:     if (@courses > 0 || @groups > 0) {
 1055:         $r->print('<td colspan="3" valign="top">');
 1056:     } else {
 1057:         $r->print('<td valign="top">');
 1058:     }
 1059:     &access_element($r,'course',\%acl_count,\@courses,$access_controls,$now,$then);
 1060:     $r->print('</td>');
 1061:     if (@courses > 0 || @groups > 0) {
 1062:         $r->print('</tr><tr><td colspan="3">&nbsp;</td></tr><tr><td colspan="3" valign="top">');
 1063:     } else {
 1064:         $r->print('<td>&nbsp;</td><td valign="top">');
 1065:     }
 1066:     &access_element($r,'group',\%acl_count,\@groups,$access_controls,$now,$then);
 1067:     $r->print('</td></tr></table>');
 1068: }
 1069: 
 1070: sub acl_status {
 1071:     my ($start,$end,$now) = @_;
 1072:     if ($start > $now) {
 1073:         return &mt('Inactive');
 1074:     }
 1075:     if ($end && $end<$now) {
 1076:         return &mt('Inactive');
 1077:     }
 1078:     return &mt('Active');
 1079: }
 1080: 
 1081: sub access_element {
 1082:     my ($r,$type,$acl_count,$items,$access_controls,$now,$then) = @_;
 1083:     my $title = $type;
 1084:     $title =~ s/s$//;
 1085:     $title =~ s/^(\w)/uc($1)/e;
 1086:     $r->print('<h3>'.&mt('[_1]-based conditional access: ',$title));
 1087:     if ($$acl_count{$type}) {
 1088:         $r->print($$acl_count{$type}.' ');
 1089:         if ($$acl_count{$type} > 1) {
 1090:             $r->print(&mt('conditions'));
 1091:         } else {
 1092:             $r->print(&mt('condition'));
 1093:         }
 1094:     } else {
 1095:         $r->print(&mt('Off'));
 1096:     }
 1097:     $r->print('</h3>');
 1098:     &display_access_row($r,'old',$type,$items,$access_controls,$now,$then);
 1099:     return;
 1100: }
 1101: 
 1102: sub display_access_row {
 1103:     my ($r,$status,$type,$items,$access_controls,$now,$then) = @_;
 1104:     if (@{$items} > 0) {
 1105:         my @all_doms;
 1106:         my $colspan = 3;
 1107:         my $uctype = $type;
 1108:         $uctype =~ s/^(\w)/uc($1)/e;
 1109:         $r->print(&Apache::loncommon::start_data_table());
 1110:         $r->print(&Apache::loncommon::start_data_table_header_row());
 1111:         $r->print('<th>'.&mt('Action?').'</th><th>'.&mt($uctype).'</th><th>'.
 1112:               &mt('Dates available').'</th>');
 1113:         if (($type eq 'course') || ($type eq 'group')) {
 1114:             $r->print('<th>'.&mt('Allowed [_1] member affiliations',$type).
 1115:                       '</th>');
 1116:             $colspan ++;
 1117:         } elsif ($type eq 'domains') {
 1118:             @all_doms = &Apache::loncommon::get_domains();
 1119:         }
 1120:         $r->print(&Apache::loncommon::end_data_table_header_row());
 1121:         foreach my $key (@{$items}) {
 1122: 	    $r->print(&Apache::loncommon::start_data_table_row());
 1123:             if (($type eq 'course') || ($type eq 'group')) {
 1124:                 &course_row($r,$status,$type,$key,$access_controls,$now,$then);
 1125:             } elsif ($type eq 'domains') {
 1126:                 &domains_row($r,$status,$key,\@all_doms,$access_controls,$now,
 1127:                             $then);
 1128:             } elsif ($type eq 'users') {
 1129:                 &users_row($r,$status,$key,$access_controls,$now,$then);
 1130:             }
 1131: 	    $r->print(&Apache::loncommon::end_data_table_row());
 1132:         }
 1133:         if ($status eq 'old') {
 1134: 	    $r->print(&Apache::loncommon::start_data_table_row());
 1135:             $r->print('<td colspan="',$colspan.'">'.&additional_item($type).
 1136:                       '</td>');
 1137: 	    $r->print(&Apache::loncommon::end_data_table_row());
 1138:         }
 1139:         $r->print(&Apache::loncommon::end_data_table());
 1140:     } else {
 1141:         $r->print(&mt('No [_1]-based conditions defined.<br />',$type).
 1142:                   &additional_item($type));
 1143:     }
 1144:     return;
 1145: }
 1146: 
 1147: sub course_js {
 1148:     return qq|
 1149: <script type="text/javascript">
 1150: function setRoleOptions(caller,num,cdom,cnum,type) {
 1151:     addIndexnum = getCallerIndex(caller);
 1152:     updateIndexnum = getIndex('update',num);
 1153:     if (caller.checked) {
 1154:         document.portform.elements[updateIndexnum].checked = true;
 1155:         var url = '/adm/portfolio?action=rolepicker&setroles='+addIndexnum+'&cnum='+cnum+'&cdom='+cdom+'&type='+type;
 1156:         var title = 'Roles_Chooser';
 1157:         var options = 'scrollbars=1,resizable=1,menubar=0';
 1158:         options += ',width=700,height=600';
 1159:         rolebrowser = open(url,title,options,'1');
 1160:         rolebrowser.focus();
 1161:     } else {
 1162:         for (var j=0;j<5;j++) {
 1163:             document.portform.elements[addIndexnum+j].value = '';
 1164:         }
 1165:     }
 1166: }
 1167: 
 1168: function getCallerIndex(caller) {
 1169:     for (var i=0;i<document.portform.elements.length;i++) {
 1170:         if (document.portform.elements[i] == caller) {
 1171:             return i;
 1172:         }
 1173:     }
 1174:     return -1;
 1175: }
 1176: 
 1177: function getIndex(name,value) {
 1178:     for (var i=0;i<document.portform.elements.length;i++) {
 1179:         if (document.portform.elements[i].name == name && document.portform.elements[i].value == value) {
 1180:             return i;
 1181:         }
 1182:     }
 1183:     return -1;
 1184: }
 1185: 
 1186: </script>
 1187: |;
 1188: }
 1189: 
 1190: sub course_row {
 1191:     my ($r,$status,$type,$item,$access_controls,$now,$then) = @_;
 1192:     my $content;
 1193:     my $defdom = $env{'user.domain'};
 1194:     if ($status eq 'old') {
 1195:         $content = $$access_controls{$item}; 
 1196:         $defdom =  $content->{'domain'};
 1197:     }
 1198:     my $js = &Apache::loncommon::coursebrowser_javascript($defdom)
 1199: 	.&course_js();
 1200:     my $crsgrptext = 'Groups';
 1201:     if ($type eq 'group') {
 1202:         $crsgrptext = 'Teams';
 1203:     }
 1204:     my $uctype = $type;
 1205:     $uctype =~ s/^(\w)/uc($1)/e;
 1206:     my ($num,$scope,$end,$start) = &set_identifiers($status,$item,$now,$then,
 1207:                                                     $type);
 1208:     $r->print('<td>'.$js.&actionbox($status,$num,$scope).'</td>');
 1209:     if ($status eq 'old') {
 1210:         my $cid = $content->{'domain'}.'_'.$content->{'number'};
 1211:         my %course_description = &Apache::lonnet::coursedescription($cid);
 1212:         $r->print('<td><input type="hidden" name="crsdom_'.$num.'" value="'.$content->{'domain'}.'" /><input type="hidden" name="crsnum_'.$num.'" value="'.$content->{'number'}.'" />'.$course_description{'description'}.'</td>');
 1213:     } elsif ($status eq 'new') {
 1214:         $r->print('<td>'.&Apache::loncommon::selectcourse_link('portform','crsnum_'.$num,'crsdom_'.$num,'description_'.$num,undef,undef,$uctype).'&nbsp;&nbsp;<input type="text" name="description_'.$num.'" size="30" /><input type="hidden" name="crsdom_'.$num.'" /><input type="hidden" name="crsnum_'.$num.'" /></td>');
 1215:     }
 1216:     $r->print('<td>'.&dateboxes($num,$start,$end).'</td>');
 1217:     $r->print('<td><table><tr>');
 1218:     $r->print('<th>'.&mt('Action').'</th><th>'.&mt('Roles').'</th><th>'.
 1219:               &mt('Access').'</th><th>'.&mt('Sections').'</th><th>'.
 1220:               &mt($crsgrptext).'</th></tr>');
 1221:     if ($status eq 'old') {
 1222:         my $max_id = 0;
 1223:         foreach my $role_id (sort(keys(%{$content->{'roles'}}))) {
 1224:             if ($role_id > $max_id) {
 1225:                 $max_id = $role_id;
 1226:             }
 1227:             $max_id ++;
 1228:             my $role_selects = &role_selectors($num,$role_id,$status,$type,$content,'display');
 1229:             $r->print('<tr><td><span style="white-space: nowrap"><label><input type="checkbox" name="delete_role_'.$num.'" value="'.$role_id.'" />'.&mt('Delete').'</label></span><br /><input type="hidden" name="preserve_role_'.$num.'" value="'.$role_id.'" /></td>'.$role_selects.'</tr>');
 1230:         }
 1231:         $r->print('</table><br />'.&mt('Add a roles-based condition').'&nbsp;<input type="checkbox" name ="add_role_'.$num.'" onClick="javascript:setRoleOptions(this,'."'$num','$content->{'domain'}','$content->{'number'}','$uctype'".')" value="'.$max_id.'" /><input type="hidden" name="role_'.$num.'_'.$max_id.'" /><input type="hidden" name="access_'.$num.'_'.$max_id.'" /><input type="hidden" name="section_'.$num.'_'.$max_id.'" /><input type="hidden" name="group_'.$num.'_'.$max_id.'" /></td>');
 1232:     } elsif ($status eq 'new') {
 1233:         my $role_id = 1;
 1234:         my $role_selects = &role_selectors($num,$role_id,$status,$type,undef,'display');
 1235:         $r->print('<tr><td><input type="checkbox" name="add_role_'.$num.'" value="'.$role_id.'" checked="checked" />'.&mt('Add').'<input type="hidden" name="grplist_'.$num.'_'.$role_id.'" /></td>'.$role_selects);
 1236:         $r->print('</tr></table></td>');
 1237:     }
 1238:     return;
 1239: }
 1240: 
 1241: sub domains_row {
 1242:     my ($r,$status,$item,$all_doms,$access_controls,$now,$then) = @_;
 1243:     my ($num,$scope,$end,$start) = &set_identifiers($status,$item,$now,$then,
 1244:                                                     'domains');
 1245:     my $dom_select = '<select name="dom_'.$num.'" size="4" multiple="true">'.
 1246:                      ' <option value="">'.&mt('Please select').'</option>';
 1247:     if ($status eq 'old') {
 1248:         my $content =  $$access_controls{$item};
 1249: 	foreach my $dom (@{$all_doms}) {
 1250:             if ((@{$content->{'dom'}} > 0) 
 1251: 		&& (grep(/^\Q$dom\E$/,@{$content->{'dom'}}))) {
 1252:                 $dom_select .= '<option value="'.$dom.'" selected>'.
 1253:                                $dom.'</option>';
 1254:             } else {
 1255:                 $dom_select .= '<option value="'.$dom.'">'.$dom.'</option>';
 1256:             }
 1257:         }
 1258:     } else {
 1259:         foreach my $dom (@{$all_doms}) {
 1260:             $dom_select .= '<option value="'.$dom.'">'.$dom.'</option>';
 1261:         }
 1262:     }
 1263:     $dom_select .= '</select>';
 1264:     $r->print('<td>'.&actionbox($status,$num,$scope).'</td><td>'.$dom_select.
 1265:               '</td><td>'.&dateboxes($num,$start,$end).'</td>');
 1266: }
 1267: 
 1268: sub users_row {
 1269:     my ($r,$status,$item,$access_controls,$now,$then) = @_;
 1270:     my ($num,$scope,$end,$start) = &set_identifiers($status,$item,$now,$then,
 1271:                                                     'users');
 1272:     my $curr_user_list;
 1273:     if ($status eq 'old') {
 1274:         my $content = $$access_controls{$item};
 1275:         $curr_user_list = &sort_users($content->{'users'});
 1276:     }
 1277:     $r->print('<td>'.&actionbox($status,$num,$scope).'</td><td>'.&mt("Format for users' username:domain information:").'<br /><tt>sparty:msu,illini:uiuc  ... etc.</tt><br /><textarea name="users_'.$num.'" cols="30"  rows="5">'.$curr_user_list.'</textarea></td><td>'.&dateboxes($num,$start,$end).'</td>');
 1278: }
 1279: 
 1280: sub additional_item {
 1281:     my ($type) = @_;
 1282:     my $output = &mt('Add new [_1] condition(s)?',$type).'&nbsp;'.&mt('Number to add: ').'<input type="text" name="new'.$type.'" size="3" value="0" />';
 1283:     return $output;
 1284: }
 1285: 
 1286: sub actionbox {
 1287:     my ($status,$num,$scope) = @_;
 1288:     my $output = '<span style="white-space: nowrap"><label>';
 1289:     if ($status eq 'new') {
 1290:         $output .= '<input type="checkbox" name="activate" value="'.$num.'" />'.
 1291:         &mt('Activate');
 1292:     } else {
 1293:         $output .= '<input type="checkbox" name="delete" value="'.$num.
 1294:                    '" />'.&mt('Delete').'</label></span><br /><span style="white-space: nowrap">'.
 1295:                    '<label><input type="checkbox" name="update" value="'.
 1296:                    $num.'" />'.&mt('Update');
 1297:     }
 1298:     $output .= '</label></span><input type="hidden" name="scope_'.$num.                '" value="'.$scope.'" />';
 1299:     return $output;
 1300: }
 1301:                                                                                    
 1302: sub dateboxes {
 1303:     my ($num,$start,$end) = @_;
 1304:     my $noend;
 1305:     if ($end == 0) {
 1306:         $noend = 'checked="checked"';
 1307:     }
 1308:     my $startdate = &Apache::lonhtmlcommon::date_setter('portform',
 1309:                            'startdate_'.$num,$start,undef,undef,undef,1,undef,
 1310:                             undef,undef,1);
 1311:     my $enddate = &Apache::lonhtmlcommon::date_setter('portform',
 1312:                                'enddate_'.$num,$end,undef,undef,undef,1,undef,
 1313:                                 undef,undef,1). '&nbsp;&nbsp;<span style="white-space: nowrap"><label>'.
 1314:                                 '<input type="checkbox" name="noend_'.
 1315:                                 $num.'" '.$noend.' />'.&mt('No end date').
 1316:                                 '</label></span>';
 1317:                                                                                    
 1318:     my $output = &mt('Start: ').$startdate.'<br />'.&mt('End: ').$enddate;
 1319:     return $output;
 1320: }
 1321: 
 1322: sub unpack_acc_key {
 1323:     my ($acc_key) = @_;
 1324:     my ($num,$scope,$end,$start) = ($acc_key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
 1325:     return ($num,$scope,$end,$start);
 1326: }
 1327: 
 1328: sub set_identifiers {
 1329:     my ($status,$item,$now,$then,$scope) = @_;
 1330:     if ($status eq 'old') {
 1331:         return(&unpack_acc_key($item));
 1332:     } else {
 1333:         return($item,$scope,$then,$now);
 1334:     }
 1335: } 
 1336: 
 1337: sub role_selectors {
 1338:     my ($num,$role_id,$status,$type,$content,$caller) = @_;
 1339:     my ($output,$cdom,$cnum,$longid);
 1340:     if ($caller eq 'display') {
 1341:         $longid = '_'.$num.'_'.$role_id;
 1342:         if ($status eq 'new') {
 1343:             foreach my $item ('role','access','section','group') {
 1344:                 $output .= '<td><select name="'.$item.$longid.'">'.
 1345:                            '<option value="">'.&mt('Pick [_1] first',$type).
 1346:                            '</option></select></td>';
 1347:             }
 1348:             return $output;
 1349:         } else {
 1350:             $cdom = $$content{'domain'};
 1351:             $cnum = $$content{'number'};
 1352:         }
 1353:     } elsif ($caller eq 'rolepicker') {
 1354:          $cdom = $env{'form.cdom'};
 1355:          $cnum = $env{'form.cnum'};
 1356:     }
 1357:     my $uctype = $type;
 1358:     $uctype =~ s/^(\w)/uc($1)/e;
 1359:     my ($sections,$groups,$allroles,$rolehash,$accesshash) =
 1360:             &Apache::loncommon::get_secgrprole_info($cdom,$cnum,1,$uctype);
 1361:     if (!@{$sections}) {
 1362:         @{$sections} = ('none');
 1363:     } else {
 1364:         unshift(@{$sections},('all','none'));
 1365:     }
 1366:     if (!@{$groups}) {
 1367:         @{$groups} = ('none');
 1368:     } else {
 1369:         unshift(@{$groups},('all','none'));
 1370:     }
 1371:     my @allacesses = sort(keys(%{$accesshash}));
 1372:     my (%sectionhash,%grouphash);
 1373:     foreach my $sec (@{$sections}) {
 1374:         $sectionhash{$sec} = $sec;
 1375:     }
 1376:     foreach my $grp (@{$groups}) {
 1377:         $grouphash{$grp} = $grp;
 1378:     }
 1379:     my %lookup = (
 1380:                    'role' => $rolehash,
 1381:                    'access' => $accesshash,
 1382:                    'section' => \%sectionhash,
 1383:                    'group' => \%grouphash,
 1384:                  );
 1385:     my @allaccesses = sort(keys(%{$accesshash}));
 1386:     my %allitems = (
 1387:                     'role' => $allroles,
 1388:                     'access' => \@allaccesses,
 1389:                     'section' => $sections,
 1390:                     'group' => $groups, 
 1391:                    );
 1392:     foreach my $item ('role','access','section','group') {
 1393:         $output .= '<td><select name="'.$item.$longid.'" multiple="true" size="4">'."\n";
 1394:         foreach my $entry (@{$allitems{$item}}) {
 1395:             if ($caller eq 'display') {
 1396:                 if ((@{$$content{'roles'}{$role_id}{$item}} > 0) && 
 1397:                     (grep(/^\Q$entry\E$/,@{$$content{'roles'}{$role_id}{$item}}))) {
 1398:                     $output .= '  <option value="'.$entry.'" selected>'.
 1399:                                   $lookup{$item}{$entry}.'</option>';
 1400:                     next;
 1401:                 }
 1402:             }
 1403:             $output .= '  <option value="'.$entry.'">'.
 1404:                        $lookup{$item}{$entry}.'</option>';
 1405:         }
 1406:         $output .= '</select>';
 1407:     }
 1408:     $output .= '</td>';
 1409:     return $output;
 1410: }
 1411: 
 1412: sub role_options_window {
 1413:     my ($r) = @_;
 1414:     my $cdom = $env{'form.cdom'};
 1415:     my $cnum = $env{'form.cnum'};
 1416:     my $type = $env{'form.type'};
 1417:     my $addindex = $env{'form.setroles'};
 1418:     my $grouptitle = 'Groups';
 1419:     if ($type eq 'Group') {
 1420:          $grouptitle = 'Teams';
 1421:     } 
 1422:     my $role_selects = &role_selectors(1,1,'new',$type,undef,'rolepicker');
 1423:     $r->print(<<"END_SCRIPT");
 1424: <script type="text/javascript">
 1425: function setRoles() {
 1426:     var addidx = $addindex+1;
 1427:     for (var i=0; i<4; i++) {
 1428:         var copylist = '';
 1429:         for (var j=0; j<document.rolepicker.elements[i].length; j++) {
 1430:             if (document.rolepicker.elements[i].options[j].selected) {
 1431:                 copylist = copylist + document.rolepicker.elements[i].options[j].value + ',';
 1432:             }
 1433:         }
 1434:         copylist = copylist.substr(0,copylist.length-1);
 1435:         opener.document.portform.elements[addidx+i].value = copylist;
 1436:     }
 1437:     self.close();
 1438: }
 1439: </script>
 1440: END_SCRIPT
 1441:     $r->print(&mt('Select roles, course status, section(s) and group(s) for users who will be able to access the portfolio file.'));
 1442:     $r->print('<form name="rolepicker" action="/adm/portfolio" method="post"><table><tr><th>'.&mt('Roles').'</th><th>'.&mt('[_1] status',$type).'</th><th>'.&mt('Sections').'</th><th>'.&mt($grouptitle).'</th></tr><tr>'.$role_selects.'</tr></table><br /><input type="button" name="rolepickbutton" value="Save selections" onclick="setRoles()" />');
 1443:     return;
 1444: }
 1445: 
 1446: sub select_files {
 1447:     my ($r) = @_;
 1448:     if ($env{'form.continue'} eq 'true') {
 1449:         # here we update the selections for the currentpath
 1450:         # eventually, have to handle removing those not checked, but . . . 
 1451:         my @items=&Apache::loncommon::get_env_multiple('form.checkfile');
 1452:         if (scalar(@items)){
 1453:              &Apache::lonnet::save_selected_files($env{'user.name'}, $env{'form.currentpath'}, @items);
 1454:         }
 1455:     } else {
 1456:             #empty the file for a fresh start
 1457:             &Apache::lonnet::clear_selected_files($env{'user.name'});
 1458:     }
 1459:     my @files = &Apache::lonnet::files_not_in_path($env{'user.name'}, $env{'form.currentpath'});
 1460:     my $java_files = join ",", @files;
 1461:     if ($java_files) {
 1462:         $java_files.=',';
 1463:     }
 1464:     my $javascript =(<<ENDSMP);
 1465:         <script type="text/javascript">
 1466:         function finishSelect() {
 1467: ENDSMP
 1468:     $javascript .= 'fileList = "'.$java_files.'";';
 1469:     $javascript .= (<<ENDSMP);
 1470:             for (i=0;i<document.forms.checkselect.length;i++) { 
 1471:                 if (document.forms.checkselect[i].checked){
 1472:                     fileList = fileList + document.forms.checkselect.currentpath.value + document.forms.checkselect[i].value + "," ;
 1473:                 }
 1474:             }
 1475:             opener.document.forms.lonhomework.$env{'form.fieldname'}.value=fileList;
 1476:             self.close();
 1477:         }
 1478:         </script>
 1479: ENDSMP
 1480:     $r->print($javascript);
 1481:     $r->print("<h1>Select portfolio files</h1>
 1482:                 Check as many as you wish in response to the problem.<br />");
 1483:     my @otherfiles=&Apache::lonnet::files_not_in_path($env{'user.name'}, $env{'form.currentpath'});
 1484:     if (@otherfiles) {
 1485: 	$r->print("<strong>Files selected from other directories:</strong><br />");
 1486: 	foreach my $file (@otherfiles) {
 1487: 	    $r->print($file."<br />");
 1488: 	}
 1489:     }
 1490: }
 1491: 
 1492: sub upload {
 1493:     my ($r,$url,$group)=@_;
 1494:     my $fname=$env{'form.uploaddoc.filename'};
 1495:     my $filesize = (length($env{'form.uploaddoc'})) / 1000; #express in k (1024?)
 1496:     my $disk_quota = 20000; # expressed in k
 1497:     if (defined($group)) {
 1498:         my $grp_quota = &get_group_quota($group); # quota expressed in k 
 1499:         if ($grp_quota ne '') {
 1500:             $disk_quota = $grp_quota;
 1501:         } else {
 1502:             $disk_quota = 0;
 1503:         }
 1504:     }
 1505:     $fname=&Apache::lonnet::clean_filename($fname);
 1506: 
 1507:     my $portfolio_root=&get_portfolio_root();
 1508:     my ($uname,$udom) = &get_name_dom();
 1509:     my $port_path = &get_port_path();
 1510:     # Fixme --- Move the checking for existing file to LOND error return
 1511:     my @dir_list=&get_dir_list($portfolio_root);
 1512:     my $found_file = 0;
 1513:     my $locked_file = 0;
 1514:     foreach my $line (@dir_list) {
 1515:         my ($file_name)=split(/\&/,$line,2);
 1516:         if ($file_name eq $fname){
 1517:             $file_name = $env{'form.currentpath'}.$file_name;
 1518:             $file_name = &prepend_group($file_name);
 1519:             $found_file = 1;
 1520:             if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
 1521:                 $locked_file = 1;
 1522:             } 
 1523:         }
 1524:     }
 1525:     my $current_disk_usage = &Apache::lonnet::diskusage($udom,$uname,$portfolio_root);
 1526:     if (($current_disk_usage + $filesize) > $disk_quota){
 1527:         $r->print('<span class="LC_error">Unable to upload <strong>'.$fname.' (size = '.$filesize.' kilobytes)</strong>. Disk quota will be exceeded.</span>'.
 1528:                   '<br />Disk quota is '.$disk_quota.' kilobytes. Your current disk usage is '.$current_disk_usage.' kilobytes.');
 1529:         $r->print(&done('Back',$url));
 1530:     } 
 1531:     elsif ($found_file){
 1532:         if ($locked_file){
 1533:             $r->print('<span class="LC_error">'.'Unable to upload <strong>'.$fname.'</strong>, a <strong>locked</strong> file by that name was found in <strong>'.$port_path.$env{'form.currentpath'}.'</strong></span>'.
 1534:                   '<br />You will be able to rename or delete existing '.$fname.' after a grade has been assigned.');
 1535:             $r->print(&done('Back',$url));      
 1536:         } else {   
 1537:             $r->print('<span class="LC_error">'.'Unable to upload <strong>'.$fname.'</strong>, a file by that name was found in <strong>'.$port_path.$env{'form.currentpath'}.'</strong></span>'.
 1538:                   '<br />To upload, rename or delete existing '.$fname.' in '.$port_path.$env{'form.currentpath'});
 1539:             $r->print(&done('Back',$url));
 1540:         }
 1541:     } else {
 1542:         my $result=&Apache::lonnet::userfileupload('uploaddoc','',
 1543: 	        	 $port_path.$env{'form.currentpath'});
 1544:         if ($result !~ m|^/uploaded/|) {
 1545:             $r->print('<span class="LC_error">'.'An errror occured ('.$result.
 1546: 	              ') while trying to upload '.&display_file().'</span><br />');
 1547: 	    $r->print(&done('Back',$url));
 1548:         } else {
 1549:             $r->print(&done(undef,$url));
 1550:         }
 1551:     }
 1552: }
 1553: 
 1554: sub lock_info {
 1555:     my ($r,$url,$group) = @_;
 1556:     my ($uname,$udom) = &get_name_dom();
 1557:     my $current_permissions = &Apache::lonnet::get_portfile_permissions($udom,
 1558:                                                                        $uname);
 1559:     my $file_name = $env{'form.lockinfo'};
 1560:     $file_name = &prepend_group($file_name);
 1561:     if (defined($file_name) && defined($$current_permissions{$file_name})) {
 1562:         foreach my $array_item (@{$$current_permissions{$file_name}}) {
 1563:             if (ref($array_item) eq 'ARRAY') {
 1564:                 my $filetext;
 1565:                 if (defined($group)) {
 1566:                     $filetext = '<strong>'.$env{'form.lockinfo'}.
 1567:                                     '</strong> (group: '.$group.')'; 
 1568:                 } else {
 1569:                     $filetext = '<strong>'.$file_name.'</strong>';
 1570:                 } 
 1571:                 $r->print(&mt('[_1] was submitted in response to problem: ',
 1572:                               $filetext).
 1573:                           '<strong>'.&Apache::lonnet::gettitle($$array_item[0]).
 1574:                           '</strong><br />');
 1575:                 my %course_description = &Apache::lonnet::coursedescription($$array_item[1]);
 1576:                 $r->print(&mt('In the course: <strong>[_1]</strong><br />',
 1577:                               $course_description{'description'}));
 1578:                 # $r->print('the third is '.$$array_item[2].'<br>');
 1579:                 # $r->print("item is $$array_item[0]<br> and $$array_item[0]");
 1580:             }
 1581:         }
 1582:     }
 1583:     $r->print(&done('Back',$url));
 1584:     return 'ok';
 1585: }
 1586: 
 1587: sub createdir {
 1588:     my ($r,$url)=@_;
 1589:     my $newdir=&Apache::lonnet::clean_filename($env{'form.newdir'});
 1590:     if ($newdir eq '') {
 1591:     	$r->print('<span class="LC_error">'.
 1592: 	    	  &mt("Error: no directory name was provided.").
 1593: 		      '</span><br />');
 1594: 	    $r->print(&done(undef,$url));
 1595: 	    return;
 1596:     }
 1597:     my $portfolio_root = &get_portfolio_root(); 
 1598:     my @dir_list=&get_dir_list($portfolio_root);
 1599:     my $found_file = 0;
 1600:     foreach my $line (@dir_list) {
 1601:         my ($filename)=split(/\&/,$line,2);
 1602:         if ($filename eq $newdir){
 1603:             $found_file = 1;
 1604:         }
 1605:     }
 1606:     if ($found_file){
 1607:     	    $r->print('<span class="LC_error">'.'Unable to create a directory named <strong>'.$newdir.
 1608:     	            ' </strong>a file or directory by that name already exists.</span><br />');
 1609:     } else {
 1610:         my ($uname,$udom) = &get_name_dom();
 1611:         my $port_path = &get_port_path();
 1612:         my $result=&Apache::lonnet::mkdiruserfile($uname,$udom,
 1613: 	         $port_path.$env{'form.currentpath'}.$newdir);
 1614:         if ($result ne 'ok') {
 1615:     	    $r->print('<span class="LC_error">'.'An errror occured ('.$result.
 1616: 	    	      ') while trying to create a new directory '.&display_file().'</span><br />');
 1617:         }
 1618:     }
 1619:     if ($newdir ne $env{'form.newdir'}) {
 1620:         $r->print("The new directory name was changed from:<br /><strong>".$env{'form.newdir'}."</strong> to <strong>$newdir </strong>");  
 1621:     }
 1622:     $r->print(&done(undef,$url));
 1623: }
 1624: 
 1625: sub get_portfolio_root {
 1626:     my ($uname,$udom) = &get_name_dom();
 1627:     my $path;
 1628:     if (defined($env{'form.group'})) {
 1629:         $path = '/userfiles/groups/'.$env{'form.group'}.'/portfolio';
 1630:     } else {
 1631:         $path = '/userfiles/portfolio';
 1632:     }
 1633:     return (&Apache::loncommon::propath($udom,$uname).$path);
 1634: }
 1635: 
 1636: sub get_group_quota {
 1637:     my ($group) = @_;
 1638:     my $group_quota; 
 1639:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 1640:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 1641:     my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum,$group);
 1642:     if (%curr_groups) {
 1643:         my %group_info =  &Apache::longroup::get_group_settings(
 1644:                                                     $curr_groups{$group});
 1645:         $group_quota = $group_info{'quota'}; #expressed in Mb
 1646:         if ($group_quota) {
 1647:             $group_quota = 1000 * $group_quota; #expressed in k
 1648:         } 
 1649:     }
 1650:     return $group_quota;
 1651: } 
 1652: 
 1653: sub get_dir_list {
 1654:     my ($portfolio_root) = @_;
 1655:     my ($uname,$udom) = &get_name_dom();
 1656:     return &Apache::lonnet::dirlist($env{'form.currentpath'},
 1657:                                           $udom,$uname,$portfolio_root);
 1658: }
 1659: 
 1660: sub get_name_dom {
 1661:     my ($uname,$udom);
 1662:     if (defined($env{'form.group'})) {
 1663:         $udom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 1664:         $uname = $env{'course.'.$env{'request.course.id'}.'.num'};
 1665:     } else {
 1666:         $udom = $env{'user.domain'};
 1667:         $uname = $env{'user.name'};
 1668:     }
 1669:     return ($uname,$udom);
 1670: }
 1671: 
 1672: sub prepend_group {
 1673:     my ($filename) = @_;
 1674:     if (defined($env{'form.group'})) {
 1675:         $filename = $env{'form.group'}.$filename;
 1676:     }
 1677:     return $filename;
 1678: }
 1679: 
 1680: sub get_namespace {
 1681:     my $namespace = 'portfolio';
 1682:     if (defined($env{'form.group'})) {
 1683:         my ($uname,$udom) = &get_name_dom();
 1684:         $namespace .= '_'.$udom.'_'.$uname.'_'.$env{'form.group'};
 1685:     }
 1686:     return $namespace;
 1687: }
 1688: 
 1689: sub get_port_path {
 1690:     my $port_path;
 1691:     if (defined($env{'form.group'})) {
 1692:        $port_path = "groups/$env{'form.group'}/portfolio";
 1693:     } else {
 1694:        $port_path = 'portfolio';
 1695:     }
 1696:     return $port_path;
 1697: }
 1698: 
 1699: sub missing_priv {
 1700:     my ($r,$url,$priv) = @_;
 1701:     my $longtext = {
 1702:                       upload => 'upload files',
 1703:                       delete => 'delete files',
 1704:                       rename => 'rename files',
 1705:                       setacl => 'set access controls for files',
 1706:                    };
 1707:     my $escpath = &HTML::Entities::encode($env{'form.currentpath'},'&<>"');
 1708:     my $rtnlink = '<a href="'.$url;
 1709:     if ($url =~ /\?/) {
 1710:         $rtnlink .= '&';
 1711:     } else {
 1712:         $rtnlink .= '?';
 1713:     }
 1714:     $rtnlink .= 'currentpath='.$escpath;
 1715:     $r->print(&mt('<h3>Action disallowed</h3>'));
 1716:     $r->print(&mt('You do not have sufficient privileges to [_1] ',
 1717:                   $longtext->{$priv}));
 1718:     if (defined($env{'form.group'})) {
 1719:         $r->print(&mt("in the group's file repository."));
 1720:         $rtnlink .= &group_args()
 1721:     } else {
 1722:         $r->print(&mt('in this portfolio.'));
 1723:     }
 1724:     $rtnlink .= '">'.&mt('Return to directory listing page').'</a>';
 1725:     $r->print('<br />'.$rtnlink);
 1726:     $r->print(&Apache::loncommon::end_page());
 1727:     return;
 1728: }
 1729: 
 1730: sub coursegrp_portfolio_header {
 1731:     my ($cdom,$cnum,$grp_desc)=@_;
 1732:     my $gpterm  = &Apache::loncommon::group_term();
 1733:     my $ucgpterm = $gpterm;
 1734:     $ucgpterm =~ s/^(\w)/uc($1)/e;
 1735:     if ($env{'form.ref'}) {
 1736:         &Apache::lonhtmlcommon::add_breadcrumb
 1737:             ({href=>"/adm/coursegroups",
 1738:               text=>"Groups",
 1739:               title=>"Course Groups"});
 1740:     }
 1741:     &Apache::lonhtmlcommon::add_breadcrumb
 1742:         ({href=>"/adm/$cdom/$cnum/$env{'form.group'}/smppg?ref=$env{'form.ref'}",
 1743:           text=>"$ucgpterm: $grp_desc",
 1744:           title=>"Go to group's home page"},
 1745:          {href=>"/adm/coursegrp_portfolio?".&group_args(),
 1746:           text=>"Group Portfolio",
 1747:           title=>"Display group portfolio"});
 1748:     my $output = &Apache::lonhtmlcommon::breadcrumbs(
 1749:                          &mt('[_1] portfolio files - [_2]',$gpterm,$grp_desc));
 1750:     return $output;
 1751: }
 1752: 
 1753: 
 1754: sub handler {
 1755:     # this handles file management
 1756:     my $r = shift;
 1757:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 1758:          ['selectfile','currentpath','meta','lockinfo','currentfile','action',
 1759: 	  'fieldname','mode','rename','continue','group','access','setnum',
 1760:           'cnum','cdom','type','setroles','showversions','ref']);
 1761:     my ($uname,$udom,$portfolio_root,$url,$caller,$title,$group,$grp_desc);
 1762:     if ($r->uri =~ m|^(/adm/)([^/]+)|) {
 1763:         $url = $1.$2;
 1764:         $caller = $2;
 1765:     }
 1766:     my ($can_modify,$can_delete,$can_upload,$can_setacl);
 1767:     if ($caller eq 'coursegrp_portfolio') {
 1768:     #  Needs to be in a course
 1769:         if (! ($env{'request.course.fn'})) {
 1770:         # Not in a course
 1771:             $env{'user.error.msg'}=
 1772:      "/adm/coursegrp_portfolio:rgf:0:0:Cannot view group portfolio";
 1773:             return HTTP_NOT_ACCEPTABLE;
 1774:         }
 1775:         my $earlyout = 0;
 1776:         my $view_permission = 
 1777:            &Apache::lonnet::allowed('vcg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
 1778:         $env{'form.group'} =~ s/\W//g;
 1779: 	$group = $env{'form.group'};
 1780:         if ($group) {
 1781:             ($uname,$udom) = &get_name_dom();
 1782:             my %curr_groups = &Apache::longroup::coursegroups($udom,$uname,
 1783: 							       $group); 
 1784:             if (%curr_groups) {
 1785:                 my %grp_content = &Apache::longroup::get_group_settings(
 1786:                                                          $curr_groups{$group});
 1787:                 $grp_desc = &unescape($grp_content{'description'});
 1788:                 if (($view_permission) || (&Apache::lonnet::allowed('rgf',
 1789:                                       $env{'request.course.id'}.'/'.$group))) {
 1790:                     $portfolio_root = &get_portfolio_root();
 1791:                 } else {
 1792:                     $r->print('You do not have the privileges required to access the shared files space for this group.');
 1793:                     $earlyout = 1;
 1794:                 }
 1795:             } else {
 1796:                 $r->print('Not a valid group for this course');
 1797:                 $earlyout = 1;
 1798:             }
 1799:             $title = &mt('Group files').' for '.$group; 
 1800:         } else {
 1801:             $r->print('Invalid group');
 1802:             $earlyout = 1;
 1803:         }
 1804:         if ($earlyout) { return OK; }
 1805:         if (&Apache::lonnet::allowed('mdg',$env{'request.course.id'})) {
 1806:             $can_modify = 1;
 1807:             $can_delete = 1;
 1808:             $can_upload = 1;
 1809:             $can_setacl = 1;
 1810:         } else {
 1811:             if (&Apache::lonnet::allowed('agf',$env{'request.course.id'}.'/'.$group)) {
 1812:                 $can_setacl = 1;
 1813:             }
 1814:             if (&Apache::lonnet::allowed('ugf',$env{'request.course.id'}.'/'.$group)) {
 1815:                 $can_upload = 1;
 1816:             }
 1817:             if (&Apache::lonnet::allowed('mgf',$env{'request.course.id'}.'/'.$group)) {
 1818:                 $can_modify = 1;
 1819:             }
 1820:             if (&Apache::lonnet::allowed('dgf',$env{'request.course.id'}.'/'.$group)) {
 1821:                 $can_delete = 1;
 1822:             }
 1823:         }
 1824:     } else {
 1825:         ($uname,$udom) = &get_name_dom();
 1826:         $portfolio_root = &get_portfolio_root();
 1827:         $title = &mt('Portfolio Manager');
 1828:         $can_modify = 1;
 1829:         $can_delete = 1;
 1830:         $can_upload = 1;
 1831:         $can_setacl = 1;
 1832:     }
 1833: 
 1834:     my $port_path = &get_port_path();
 1835:     &Apache::loncommon::no_cache($r);
 1836:     &Apache::loncommon::content_type($r,'text/html');
 1837:     $r->send_http_header;
 1838:     # Give the LON-CAPA page header
 1839:     if ($env{"form.mode"} eq 'selectfile'){
 1840:         $r->print(&Apache::loncommon::start_page($title,undef,
 1841: 						 {'only_body' => 1}));
 1842:     } elsif ($env{'form.action'} eq 'rolepicker') {
 1843:         $r->print(&Apache::loncommon::start_page('New role-based condition',undef,
 1844:                                                  {'no_nav_bar'  => 1, }));
 1845:     } else {
 1846:         $r->print(&Apache::loncommon::start_page($title));
 1847:     }
 1848:     $r->rflush();
 1849: 	if (($env{'form.storeupl'}) & (!$env{'form.uploaddoc.filename'})){
 1850:    	    $r->print('<span class="LC_error">'.
 1851: 		      'No file was selected to upload.'.
 1852: 		      'To upload a file, click <strong>Browse...</strong>'.
 1853: 		      ', select a file, then click <strong>Upload</strong>.'.
 1854: 		      '</span>');
 1855: 	}
 1856:     if ($env{'form.meta'}) {
 1857:         &open_form($r,$url);
 1858: #        $r->print(&edit_meta_data($r, $env{'form.currentpath'}.$env{'form.selectfile'}));
 1859:         $r->print('Edit the meta data<br />');
 1860:         &close_form($r,$url);
 1861:     }
 1862:     if ($env{'form.store'}) {
 1863:     }
 1864: 
 1865:     if ($env{'form.uploaddoc.filename'}) {
 1866:         if ($can_upload) {
 1867: 	    &upload($r,$url,$group);
 1868:         } else {
 1869:             &missing_priv($r,$url,'upload');
 1870:         }
 1871:     } elsif ($env{'form.action'} eq 'delete' && $env{'form.confirmed'}) {
 1872:         if ($can_delete) {
 1873: 	    &delete_confirmed($r,$url);
 1874:         } else {
 1875:             &missing_priv($r,$url,'delete');
 1876:         }
 1877:     } elsif ($env{'form.action'} eq 'delete') {
 1878:         if ($can_delete) {
 1879: 	    &delete($r,$url);
 1880:         } else {
 1881:             &missing_priv($r,$url,'delete');
 1882:         }
 1883:     } elsif ($env{'form.action'} eq 'deletedir' && $env{'form.confirmed'}) {
 1884:         if ($can_delete) {
 1885: 	    &delete_dir_confirmed($r,$url);
 1886:         } else {
 1887:             &missing_priv($r,$url,'delete');
 1888:         }
 1889:     } elsif ($env{'form.action'} eq 'deletedir') {
 1890:         if ($can_delete) {
 1891: 	    &delete_dir($r,$url);
 1892:         } else {
 1893:             &missing_priv($r,$url,'delete');
 1894:         }
 1895:     } elsif ($env{'form.action'} eq 'rename' && $env{'form.confirmed'}) {
 1896:         if ($can_modify) {
 1897: 	    &rename_confirmed($r,$url);
 1898:         } else {
 1899:             &missing_priv($r,$url,'rename');
 1900:         }
 1901:     } elsif ($env{'form.rename'}) {
 1902:         $env{'form.selectfile'} = $env{'form.rename'};
 1903:         $env{'form.action'} = 'rename';
 1904:         if ($can_modify) {
 1905: 	    &rename($r,$url);
 1906:         } else {
 1907:             &missing_priv($r,$url,'rename');
 1908:         }
 1909:     } elsif ($env{'form.access'}) {
 1910:         $env{'form.selectfile'} = $env{'form.access'};
 1911:         $env{'form.action'} = 'chgaccess';
 1912:         &display_access($r,$url,$group,$can_setacl,$port_path);
 1913:     } elsif ($env{'form.action'} eq 'chgaccess') {
 1914:         if ($can_setacl) {
 1915:             &update_access($r,$url,$group,$port_path);
 1916:         } else {
 1917:             &missing_priv($r,$url,'setacl');
 1918:         }
 1919:     } elsif ($env{'form.action'} eq 'rolepicker') {
 1920:         if ($can_setacl) { 
 1921:             &role_options_window($r);
 1922:         } else {
 1923:             &missing_priv($r,$url,'setacl');
 1924:         }
 1925:     } elsif ($env{'form.createdir'}) {
 1926:         if ($can_upload) {
 1927: 	    &createdir($r,$url);
 1928:         } else {
 1929:             &missing_priv($r,$url,'upload');
 1930:         }
 1931:     } elsif ($env{'form.lockinfo'}) {
 1932:         &lock_info($r,$url,$group);
 1933:     } else {
 1934: 	my $current_path='/';
 1935: 	if ($env{'form.currentpath'}) {
 1936: 	    $current_path = $env{'form.currentpath'};
 1937: 	}
 1938:         if ($caller eq 'coursegrp_portfolio') {
 1939:             &Apache::lonhtmlcommon::clear_breadcrumbs();
 1940:             $r->print(&coursegrp_portfolio_header($udom,$uname,$grp_desc));
 1941:         }
 1942:         my @dir_list=&get_dir_list($portfolio_root);
 1943: 	if ($dir_list[0] eq 'no_such_dir'){
 1944: 	    # two main reasons for this:
 1945:             #    1) never been here, so directory structure not created
 1946: 	    #    2) back-button navigation after deleting a directory
 1947: 	    if ($current_path eq '/'){
 1948: 	        &Apache::lonnet::mkdiruserfile($uname,$udom,
 1949: 					       &get_port_path());
 1950: 	    } else {
 1951:                 # some directory that snuck in get rid of the directory
 1952:                 # from the recent pulldown, just in case
 1953: 		&Apache::lonhtmlcommon::remove_recent('portfolio',
 1954: 						      [$current_path]);
 1955: 		$current_path = '/'; # force it back to the root        
 1956: 	    }
 1957: 	    # now grab the directory list again, for the first time
 1958: 	    @dir_list=&Apache::lonnet::dirlist($current_path,
 1959: 					    $udom,$uname,$portfolio_root);
 1960:         }
 1961: 	# need to know if directory is empty so it can be removed if desired
 1962: 	my $is_empty=(@dir_list == 2);
 1963: 	&display_common($r,$url,$current_path,$is_empty,\@dir_list,
 1964: 			$can_upload);
 1965:         &display_directory($r,$url,$current_path,$is_empty,\@dir_list,$group,
 1966:                            $can_upload,$can_modify,$can_delete,$can_setacl);
 1967: 	$r->print(&Apache::loncommon::end_page());
 1968:     }
 1969:     return OK;
 1970: }
 1971: 
 1972: 1;
 1973: __END__

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