File:  [LON-CAPA] / loncom / interface / portfolio.pm
Revision 1.153: download - view: text, annotated - select for diffs
Fri Aug 11 23:45:18 2006 UTC (17 years, 10 months ago) by banghart
Branches: MAIN
CVS tags: HEAD
	Saving work in progress for showing versioned file info.
	Use &make_anchor a couple of new places
	Make code easier to read (shorten lines).

    1: # The LearningOnline Network
    2: # portfolio browser
    3: #
    4: # $Id: portfolio.pm,v 1.153 2006/08/11 23:45:18 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:         'selectfile'    => $port_path,
  137:         'currentpath'   => '/',
  138:         'mode'          => $env{"form.mode"},
  139:         'fieldname'     => $env{"form.fieldname"},
  140:         'continue'      => $env{"form.continue"}
  141:     );
  142:     $r->print('<span class="LC_current_location">'.&make_anchor($url,\%anchor_fields,$port_path).'/');
  143:     if (@tree > 1){
  144:         my $newCurrentPath = '';
  145:         for (my $i = 1; $i< @tree; $i++){
  146:             $newCurrentPath .= $tree[$i].'/';
  147:             my %anchor_fields = (
  148:                 'selectfile' => $tree[$i],
  149:                 'currentpath' => '/',
  150:                 'mode' => $env{"form.mode"},
  151:                 'fieldname' => $env{"form.fieldname"},
  152:                 'continue' => $env{"form.continue"}
  153:             );
  154:             $r->print(&make_anchor($url,\%anchor_fields,$tree[$i]).'/');
  155:         }
  156:     }
  157:     $r->print('</span>');
  158:     &Apache::lonhtmlcommon::store_recent($namespace,$current_path,$current_path);
  159:     $r->print('<br /><form method="post" action="'.$url.'?mode='.$env{"form.mode"}.'&amp;fieldname='.$env{"form.fieldname"}.&group_args());
  160:     $r->print('">'.
  161: 	      &Apache::lonhtmlcommon::select_recent($namespace,'currentpath',
  162: 						    'this.form.submit();'));
  163:     $r->print("</form>");
  164: }
  165: 
  166: sub display_directory_line {
  167:     my ($r,$select_mode,$fullpath, $filename, $mtime, $size, $css_class,
  168: 	$line, $access_controls, $curr_access, $now, $version_flag,
  169: 	$href_location, $url, $current_path, $access_admin_text, $versions)=@_;
  170:     # my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef)=split(/\&/,$line,16); 
  171:     $r->print('<tr class="'.$css_class.'">');
  172:     $r->print($line); # contains first two cells of table
  173:     if ($$version_flag{$filename}) { # versioned can't be versioned, so TRUE when root file
  174:         $r->print('<td><img alt="" src="'.&Apache::loncommon::icon($filename).'" /></td>');
  175:         $r->print('<td>'.$$version_flag{$filename}.'</td>');
  176:     } else { # this is a graded or handed back file
  177:         $r->print('<td colspan="2">&nbsp;</td>');
  178:     }
  179:     # $r->print('<td>'.$$version_flag{$filename}.'</td><td>');
  180:     $r->print('<td>'.&make_anchor($href_location.$filename,undef,$filename).'</td>'); 
  181:     $r->print('<td>'.$size.'</td>');
  182:     $r->print('<td>'.&Apache::lonlocal::locallocaltime($mtime).'</td>');
  183:     if ($select_mode ne 'true') {
  184: 	$r->print('<td><span style="white-space: nowrap">'.
  185: 		  &mt($curr_access).'&nbsp;&nbsp;&nbsp;');
  186:         my %anchor_fields = (
  187:             'access' => $filename,
  188:             'currentpath' => $current_path
  189:         );
  190: 	$r->print(&make_anchor($url, \%anchor_fields, $access_admin_text).'</span></td>');
  191:     }
  192:     $r->print('</tr>'.$/);
  193: }
  194: 
  195: sub display_directory {
  196:     my ($r,$url,$current_path,$is_empty,$dir_list,$group,$can_upload,
  197:         $can_modify,$can_delete,$can_setacl)=@_;
  198:     my $iconpath= $r->dir_config('lonIconsURL') . "/";
  199:     my $display_out;
  200:     my $select_mode;
  201:     my $checked_files;
  202:     my $port_path = &get_port_path();
  203:     my ($uname,$udom) = &get_name_dom();
  204:     my $access_admin_text = &mt('View Status');
  205:     if ($can_setacl) {
  206:         $access_admin_text = &mt('View/Change Status');
  207:     }
  208: 
  209:     my $current_permissions = &Apache::lonnet::get_portfile_permissions($udom,
  210:                                                                         $uname);
  211:     my %locked_files = &Apache::lonnet::get_marked_as_readonly_hash(
  212:                                                   $current_permissions,$group);
  213:     my %access_controls = &Apache::lonnet::get_access_controls($current_permissions,$group);
  214:     my $now = time;
  215:     if ($env{"form.mode"} eq 'selectfile'){
  216: 	&select_files($r);
  217: 	$checked_files =&Apache::lonnet::files_in_path($uname,$env{'form.currentpath'});
  218: 	$select_mode = 'true';
  219:     } 
  220:     if ($is_empty && ($current_path ne '/') && $can_delete) {
  221:         $display_out = '<form method="post" action="'.$url.'">'.
  222: 	    &group_form_data().
  223:         '<input type="hidden" name="action" value="deletedir" />'.
  224:         '<input type="submit" name="deletedir" value="'.&mt("Delete Directory").'" />'.
  225:         '<input type="hidden" name="selectfile" value="" />'.
  226:         '<input type="hidden" name="currentpath" value="'.$current_path.'" />'.
  227:         '</form>';
  228:         
  229:         $r->print($display_out);
  230: 	return;
  231:     }
  232:     if ($select_mode eq 'true') {
  233:         $r->print('<form method="post" name="checkselect" action="'.$url.'">');
  234:         $r->print('<table id="LC_browser">'.
  235:             '<tr><th>Select</th><th>&nbsp;</th><th>&nbsp;</th><th>Name</th><th>Size</th><th>Last Modified</th></tr>');
  236:     } else {
  237:         $r->print('<form method="post" action="'.$url.'">');
  238:         $r->print('<table id="LC_browser">'.
  239:             '<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>');
  240:     }
  241:     $r->print("\n".&group_form_data()."\n");
  242: 
  243:     my $href_location="/uploaded/$udom/$uname/$port_path".$current_path;
  244:     my $href_edit_location="/editupload/$udom/$uname/$port_path".$current_path;
  245:     my @dir_lines;
  246:     my @version_lines;
  247:     my %versioned;
  248:     foreach my $dir_line (sort 
  249: 		      { 
  250: 			  my ($afile)=split('&',$a,2);
  251: 			  my ($bfile)=split('&',$b,2);
  252: 			  return (lc($afile) cmp lc($bfile));
  253: 		      } (@$dir_list)) {
  254:     	#$strip holds directory/file name
  255:     	#$dom 
  256:     	my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef)=split(/\&/,$dir_line,16); 
  257:     	$filename =~ s/\s+$//;
  258:     	my ($fname,$version,$extension) = &Apache::grades::file_name_version_ext($filename);
  259:     	if ($version) {
  260:     	    push(@version_lines, [$filename,$dom,$testdir,$size,$mtime,$obs]);
  261:     	    $versioned{$fname.'.'.$extension} .= $version.",";
  262:     	} else {
  263:     	    push(@dir_lines, [$filename,$dom,$testdir,$size,$mtime,$obs]);
  264:     	}
  265:     }
  266:     foreach my $dir_line (@dir_lines) {
  267:         my ($filename,$dom,$testdir,$size,$mtime,$obs) = @$dir_line;
  268:         my ($fname,$version,$extension) = &Apache::grades::file_name_version_ext($filename);
  269:     	if (($filename ne '.') && ($filename ne '..') && ($filename !~ /\.meta$/ ) && ($filename !~ /(.*)\.(\d+)\.([^\.]*)$/)) {
  270:     	    my %version_flag;
  271:     	    my $show_versions;
  272:     	    if ($env{'form.showversions'} eq $filename) {
  273:     	        $show_versions = 'true';
  274:     	    }
  275:     	    if (exists($versioned{$filename})) {
  276:     	        my %anchor_fields = (
  277:     	            'selectfile' => $filename,
  278:     	            'continue' => 'false',
  279:     	            'currentpath' => $current_path,
  280:     	        );
  281:     	        if ($show_versions) {
  282:                     $version_flag{$filename} = &make_anchor('portfolio',\%anchor_fields,
  283:                         '<img class="LC_icon" alt="'.&mt('opened folder').'" src="'.$iconpath.'folder_pointer_opened.gif" />');
  284:     	        } else {
  285:     	            $anchor_fields{'showversions'} = $filename;
  286:                     $version_flag{$filename} = &make_anchor('portfolio',\%anchor_fields,
  287:                         '<img class="LC_icon" alt="'.&mt('closed folder').'" src="'.$iconpath.'folder_pointer_closed.gif" />');
  288:                 }
  289:     	    } else {
  290:     	        $version_flag{$filename} = '&nbsp;';
  291:     	    }
  292:             if ($dirptr&$testdir) {
  293: 		my $colspan='colspan="2"';
  294:                 if ($select_mode eq 'true'){
  295: 		    undef($colspan);
  296:                 }
  297: 		$r->print('<tr class="LC_browser_folder"><td '.$colspan.'><img alt="'.&mt('closed folder').'" src="'.$iconpath.'folder_closed.gif" /></td>');
  298:                 $r->print('<td>Go to ...</td>');
  299:                 my %anchor_fields = (
  300:                     'selectfile'    => $filename.'/',
  301:                     'currentpath'   => $current_path.$filename.'/',
  302:                     'mode'          => $env{"form.mode"},
  303:                     'fieldname'     => $env{"form.fieldname"},
  304:                     'continue'      => $env{"form.continue"}
  305:                 );  
  306:                 $r->print('<td>'.$version_flag{$filename}.'</td><td>'.&make_anchor($url,\%anchor_fields,$filename.'/').'</td>'); 
  307:                 $r->print('</tr>'); 
  308:             } else {
  309: 		my $css_class = 'LC_browser_file';
  310: 		my $line;
  311:                 my $fullpath = $current_path.$filename;
  312:                 $fullpath = &prepend_group($fullpath);
  313:                 if ($select_mode eq 'true') {
  314:                     $line='<td><input type="checkbox" name="checkfile" value="'.$filename.'"';
  315: 		    if ($$checked_files{$filename} eq 'selected') {
  316:                         $line.=" checked ";
  317:                     }
  318: 		    $line.=' /></td>';
  319:                 } else {
  320:                     if (exists $locked_files{$fullpath}) {
  321:                         my %anchor_fields = (
  322:                             'lockinfo' => $current_path.$filename
  323:                         );
  324:                         $line.='<td colspan="2">'.&make_anchor($url,\%anchor_fields,'Locked').'</td>';
  325: 			$css_class= 'LC_browser_file_locked';
  326:                     } else {
  327:                         if (!$can_modify) {
  328:                             $line .= '<td colspan="2">';
  329:                         } else {
  330:                             $line .= '<td>';
  331:                         }
  332:                         if ($can_delete) {
  333:                             $line .= '<input type="checkbox" name="selectfile" value="'.$filename.'" />';
  334:                         }
  335:                         if ($can_modify) {
  336:                             my $cat='<img class="LC_icon" alt="'.&mt('Catalog Information').
  337:                             '" src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/catalog.gif').'" />';
  338:                             my %anchor_fields = (
  339:                                 'rename' => $filename,
  340:                                 currentpath => $current_path
  341:                             );
  342:                             $line .= &make_anchor($url,\%anchor_fields,'Rename');
  343:                             $line .= '</td><td>'.&make_anchor($href_edit_location.$filename.'.meta',undef,$cat);
  344:                             # '<a href="'.$href_edit_location.$filename.'.meta">'.$cat.'</a>';
  345:                         }
  346:                         $line .= '</td>';
  347:                     }
  348:                 }
  349: 		my $curr_access;
  350: 		if ($select_mode ne 'true') {
  351: 		    my $pub_access = 0;
  352: 		    my $guest_access = 0;
  353: 		    my $cond_access = 0;
  354: 		    foreach my $key (sort(keys(%{$access_controls{$fullpath}}))) {
  355: 			my ($num,$scope,$end,$start) = &unpack_acc_key($key);
  356: 			if (($now > $start) && (!$end || $end > $now)) {
  357: 			    if ($scope eq 'public')  {
  358: 				$pub_access = 1;
  359: 			    } elsif ($scope eq 'guest') {
  360: 				$guest_access = 1;
  361: 			    } else {
  362: 				$cond_access = 1;
  363: 			    }
  364: 			}
  365: 		    }
  366: 		    if (!$pub_access && !$guest_access && !$cond_access) {
  367: 			$curr_access = &mt('Private');
  368: 		    } else {
  369: 			my @allaccesses; 
  370: 			if ($pub_access) {
  371: 			    push(@allaccesses,&mt('Public'));
  372: 			}
  373: 			if ($guest_access) {
  374: 			    push(@allaccesses,&mt('Passphrase-protected'));
  375: 			}
  376: 			if ($cond_access) {
  377: 			    push(@allaccesses,&mt('Conditional'));
  378: 			}
  379: 			$curr_access = join('+ ',@allaccesses);
  380: 		    }
  381: 		}
  382:                 &display_directory_line($r,$select_mode,$fullpath, $filename, $mtime, $size, $css_class, $line, 
  383:                                         \%access_controls, $curr_access,$now, \%version_flag, $href_location, 
  384:                                         $url, $current_path, $access_admin_text);
  385: 		if ($show_versions) {
  386: 		    foreach my $dir_line (@version_lines) {
  387: 		        my ($v_filename,$dom,$testdir,$size,$mtime,$obs) = @$dir_line;
  388:                         my ($v_fname,$version,$v_extension) = &Apache::grades::file_name_version_ext($v_filename);
  389:                         $line = '<td colspan="2">&nbsp;</td>';
  390:                         if (($v_fname eq $fname)&&($v_extension eq $extension)) {
  391: 		            &display_directory_line($r,$select_mode,$fullpath, $v_filename, $mtime, $size, 
  392: 		                            $css_class, $line, \%access_controls, $curr_access, $now,
  393: 		                             \%version_flag, $href_location, $url, $current_path, $access_admin_text, 1);
  394: 		        }
  395: 		    }
  396: 		}
  397:             }
  398:         }
  399:     }
  400:     if ($select_mode eq 'true') {
  401:         $r->print('</table>
  402:             <input type="hidden" name="continue" value="true" />
  403:             <input type="hidden" name="fieldname" value="'.$env{'form.fieldname'}.'" />
  404:             <input type="hidden" name="mode" value="selectfile" />
  405:             <input type="submit" name="submit" value="Select checked files, and continue selecting." /><br />
  406:             <input type="button" name="doit" onClick= "finishSelect();" value="Select checked files, and close window" />
  407:             <input type="hidden" name="currentpath" value="'.$current_path.'" />
  408:         </form>');        
  409:     } else {
  410:         $r->print('</table>');
  411:         if ($can_delete) {
  412:             $r->print('
  413:         <input type="submit" name="doit" value="Delete Checked Files" />
  414:         <input type="hidden" name="action" value="delete" />
  415:         <input type="hidden" name="currentpath" value="'.$current_path.'" />
  416:         </form>'
  417:             );
  418:         }
  419:     }
  420: }
  421: 
  422: sub open_form {
  423:     my ($r,$url)=@_;
  424:     my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
  425:     $r->print('<form name="portform" method="post" action="'.$url.'">');
  426:     $r->print('<input type="hidden" name="action" value="'.
  427: 	      $env{'form.action'}.'" />');
  428:     $r->print('<input type="hidden" name="confirmed" value="1" />');
  429:     foreach (@files) {
  430:         $r->print('<input type="hidden" name="selectfile" value="'.
  431: 	      $_.'" />');
  432:     }
  433:     $r->print('<input type="hidden" name="currentpath" value="'.
  434: 	      $env{'form.currentpath'}.'" />');
  435: }
  436: 
  437: sub close_form {
  438:     my ($r,$url,$button_text)=@_;
  439:     if (!defined($button_text)) {
  440:         $button_text = {
  441:                          'continue' => &mt('Continue'),
  442:                          'cancel'   => &mt('Cancel'),
  443:                        };
  444:     }
  445:     $r->print('<p><input type="submit" value="'.$button_text->{'continue'}.'" />');
  446:     $r->print(&group_form_data().'</p></form>');
  447:     $r->print('<form action="'.$url.'" method="post">
  448:                <p>
  449:               <input type="hidden" name="currentpath" value="'.
  450: 	      $env{'form.currentpath'}.'" />'.
  451: 	      &group_form_data());
  452:     $r->print("\n".'   <input type="submit" value="'.$button_text->{'cancel'}.'" />
  453:                </p></form>'); 
  454: }
  455: 
  456: sub display_file {
  457:     my ($path,$filename)=@_;
  458:     my $display_file_text;
  459:     my $file_start='<span class="LC_filename">';
  460:     my $file_end='</span>';
  461:     if (!defined($path)) { $path=$env{'form.currentpath'}; }
  462:     if (!defined($filename)) { 
  463:         $filename=$env{'form.selectfile'};
  464:         $display_file_text = $file_start.$path.$filename.$file_end;
  465:     } elsif (ref($filename) eq "ARRAY") {
  466:         foreach my $file (@$filename) {
  467:             $display_file_text .= $file_start.$path.$file.$file_end.'<br />';
  468:         }
  469:     } elsif (ref($filename) eq "SCALAR") {
  470:         $display_file_text = $file_start.$path.$$filename.$file_end;
  471:     } else {
  472: 	$display_file_text = $file_start.$path.$filename.$file_end;
  473:     }
  474:     return $display_file_text;
  475: }
  476: 
  477: sub done {
  478:     my ($message,$url)=@_;
  479:     unless (defined $message) {
  480:         $message='Done';
  481:     }
  482:     my %anchor_fields = (
  483:         'currentpath' => $env{'form.currentpath'},
  484:         'fieldname' => $env{'form.fieldname'},
  485:         'mode'      => $env{'form.mode'}
  486:     );
  487:     my $result = '<h3>'.&make_anchor($url,\%anchor_fields,&mt($message)).'</h3>';
  488:     return $result;
  489: }
  490: 
  491: sub delete {
  492:     my ($r,$url)=@_;
  493:     my @check;
  494:     my $file_name = $env{'form.currentpath'}.$env{'form.selectfile'};
  495:     $file_name = &prepend_group($file_name);
  496:     my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
  497:     my ($uname,$udom) = &get_name_dom();
  498:     if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
  499:         $r->print ("The file is locked and cannot be deleted.<br />");
  500:         $r->print(&done('Back',$url));
  501:     } else {
  502:         if (scalar(@files)) {
  503:             &open_form($r,$url);
  504:             $r->print('<p>'.&mt('Delete').' '.&display_file(undef,\@files).'?</p>');
  505:             &close_form($r,$url);
  506:         } else {
  507:             $r->print("No file was checked to delete.<br />");
  508:             $r->print(&done(undef,$url));
  509:         }
  510:     }
  511: } 
  512: 
  513: sub delete_confirmed {
  514:     my ($r,$url)=@_;
  515:     my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
  516:     my $result;
  517:     my ($uname,$udom) = &get_name_dom();
  518:     my $port_path = &get_port_path();
  519:     foreach my $delete_file (@files) {
  520:         $result=&Apache::lonnet::removeuserfile($uname,$udom,$port_path.
  521: 					       $env{'form.currentpath'}.
  522: 					       $delete_file);
  523:         if ($result ne 'ok') {
  524: 	$r->print('<span class="LC_error"> An error occured ('.$result.
  525: 		  ') while trying to delete '.&display_file(undef, $delete_file).'</span><br />');
  526:         }
  527:     }
  528:     $r->print(&done(undef,$url));
  529: }
  530: 
  531: sub delete_dir {
  532:     my ($r,$url)=@_;
  533:     &open_form($r,$url);
  534:     $r->print('<p>'.&mt('Delete').' '.&display_file().'?</p>');
  535:     &close_form($r,$url);
  536: } 
  537: 
  538: sub delete_dir_confirmed {
  539:     my ($r,$url)=@_;
  540:     my $directory_name = $env{'form.currentpath'};
  541:     $directory_name =~ s|/$||; # remove any trailing slash
  542:     my ($uname,$udom) = &get_name_dom();
  543:     my $namespace = &get_namespace();
  544:     my $port_path = &get_port_path();
  545:     my $result=&Apache::lonnet::removeuserfile($uname,$udom,$port_path.
  546: 					       $directory_name);
  547: 					       
  548:     if ($result ne 'ok') {
  549: 	$r->print('<span class="LC_error"> An error occured (dir) ('.$result.
  550: 		  ') while trying to delete '.$directory_name.'</span><br />');
  551:     } else {
  552:         # now remove from recent
  553: #        $r->print('<br /> removing '.$directory_name.'<br /');
  554:         &Apache::lonhtmlcommon::remove_recent($namespace,[$directory_name.'/']);
  555:         my @dirs = split m!/!, $directory_name;
  556:         
  557: #        $directory_name =~ m/^(\/*\/)(\/*.)$/;
  558:         $directory_name='/';
  559:         for (my $i=1; $i < (@dirs - 1); $i ++){
  560:             $directory_name .= $dirs[$i].'/';
  561:         }
  562:         $env{'form.currentpath'} = $directory_name;
  563:     }
  564:     $r->print(&done(undef,$url));
  565: }
  566: 
  567: sub rename {
  568:     my ($r,$url)=@_;
  569:     my $file_name = $env{'form.currentpath'}.$env{'form.rename'};
  570:     my ($uname,$udom) = &get_name_dom();
  571:     $file_name = &prepend_group($file_name);
  572:     if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
  573:         $r->print ("The file is locked and cannot be renamed.<br />");
  574:         $r->print(&done(undef,$url));
  575:     } else {
  576:         &open_form($r,$url);
  577:         $r->print('<p>'.&mt('Rename').' '.&display_file().' to 
  578:                    <input name="filenewname" type="input" size="50" />?</p>');
  579:         &close_form($r,$url);
  580:     }
  581: }
  582: 
  583: sub rename_confirmed {
  584:     my ($r,$url)=@_;
  585:     my $filenewname=&Apache::lonnet::clean_filename($env{'form.filenewname'});
  586:     my ($uname,$udom) = &get_name_dom();
  587:     my $port_path = &get_port_path();
  588:     if ($filenewname eq '') {
  589: 	$r->print('<span class="LC_error">'.
  590: 		  &mt("Error: no valid filename was provided to rename to.").
  591: 		  '</span><br />');
  592: 	$r->print(&done(undef,$url));
  593: 	return;
  594:     } 
  595:     my $result=
  596: 	&Apache::lonnet::renameuserfile($uname,$udom,
  597:             $port_path.$env{'form.currentpath'}.$env{'form.selectfile'},
  598:             $port_path.$env{'form.currentpath'}.$filenewname);
  599:     if ($result ne 'ok') {
  600: 	$r->print('<span class="LC_error">'.
  601: 		  &mt('An errror occured ([_1]) while trying to rename [_2]'
  602: 		      .' to [_3]',$result,&display_file(),
  603: 		      &display_file('',$filenewname)).'</span><br />');
  604:     }
  605:     if ($filenewname ne $env{'form.filenewname'}) {
  606:         $r->print(&mt("The new file name was changed from:<br />[_1] to [_2]",
  607: 		      '<strong>'.&display_file('',$env{'form.filenewname'}).'</strong>',
  608: 		      '<strong>'.&display_file('',$filenewname).'</strong>'));
  609:     }
  610:     $r->print(&done(undef,$url));
  611: }
  612: 
  613: sub display_access {
  614:     my ($r,$url,$group,$can_setacl,$port_path) = @_;
  615:     my ($uname,$udom) = &get_name_dom();
  616:     my $file_name = $env{'form.currentpath'}.$env{'form.access'};
  617:     $file_name = &prepend_group($file_name);
  618:     my $current_permissions = &Apache::lonnet::get_portfile_permissions($udom,
  619:                                                                         $uname);
  620:     my %access_controls = &Apache::lonnet::get_access_controls($current_permissions,$group,$file_name);
  621:     my $aclcount = keys(%access_controls);
  622:     my $header = '<h3>'.&mt('Allowing others to retrieve file: [_1]',$port_path.$env{'form.currentpath'}.$env{'form.access'}).'</h3>';
  623:     my $info .= &mt('Access to this file by others can be set to be one or ');
  624:     $info .= &mt('more of the following types: public, passphrase-protected or conditional.');
  625:     $info .= '<br /><ul><li>'.&mt('Public files are available to anyone without the need for login.');
  626:     $info .= '</li><li>'.&mt('Passphrase-protected files do not require log-in, but will require ');
  627:     $info .= &mt('the viewer to enter the passphrase you set.');
  628:     $info .= '</li><li>'.&mt('Conditional files are accessible to logged-in users with accounts ');
  629:     $info .= &mt('in the LON-CAPA network, who satisfy the conditions you set.').'<br />';
  630:     $info .= &mt('The conditions can include affiliation with a particular course or group, ');
  631:     $info .= &mt('or a user account in a specific domain.').'<br />';
  632:     $info .= &mt('Alternatively access can be granted to people with specific LON-CAPA usernames and domains.').'</li></ul>';
  633:     if ($group eq '') {
  634:         $info .= (&mt("Direct others to the 'Display file listing' link (shown when there are viewable files) on your personal information page:<br /><a href='/adm/$udom/$uname/aboutme'>http://$ENV{'SERVER_NAME'}/adm/$udom/$uname/aboutme</a>"));
  635:     }
  636:     
  637:     if ($can_setacl) {
  638:         &open_form($r,$url);
  639:         $r->print($header.$info);
  640:         &access_setting_table($r,$access_controls{$file_name});
  641:         my $button_text = {
  642:                         'continue' => &mt('Proceed'),
  643:                         'cancel' => &mt('Back to directory listing'),
  644:                       };
  645:         &close_form($r,$url,$button_text);
  646:     } else {
  647:         $r->print($header);
  648:         if ($aclcount) {  
  649:             $r->print($info);
  650:         }
  651:         &view_access_settings($r,$url,$access_controls{$file_name},$aclcount);
  652:     }
  653: }
  654: 
  655: sub view_access_settings {
  656:     my ($r,$url,$access_controls,$aclcount) = @_;
  657:     my ($showstart,$showend);
  658:     my %todisplay;
  659:     foreach my $key (sort(keys(%{$access_controls}))) {
  660:         my ($num,$scope,$end,$start) = &unpack_acc_key($key);
  661:         $todisplay{$scope}{$key} = $$access_controls{$key};
  662:     }
  663:     if ($aclcount) {
  664:         $r->print(&mt('<h4>Current access controls defined for this file:</h4>'));
  665:         $r->print(&Apache::loncommon::start_data_table());
  666:         $r->print(&Apache::loncommon::start_data_table_header_row());
  667:         $r->print('<th>'.&mt('Access control').'</th><th>'.&mt('Dates available').
  668:                   '</th><th>'.&mt('Additional information').'</th>');
  669:         $r->print(&Apache::loncommon::end_data_table_header_row());
  670:         my $count = 1;
  671:         my $chg = 'none';
  672:         &build_access_summary($r,$count,$chg,%todisplay);
  673:         $r->print(&Apache::loncommon::end_data_table());
  674:     } else {
  675:         $r->print(&mt('No access control settings currently exist for this file.<br />' ));
  676:     }
  677:     my %anchor_fields = (
  678:         'currentpath' => $env{'form.currentpath'}
  679:     );
  680:     $r->print('<br />'.&make_anchor($url, \%anchor_fields, &mt('Return to directory listing')));
  681:     return;
  682: }
  683: 
  684: sub build_access_summary {
  685:     my ($r,$count,$chg,%todisplay) = @_; 
  686:     my ($showstart,$showend);
  687:     my %scope_desc = (
  688:                       public => 'Public',
  689:                       guest => 'Passphrase-protected',
  690:                       domains => 'Conditional: domain-based',
  691:                       users => 'Conditional: user-based',
  692:                       course => 'Conditional: course-based',
  693:                       group => 'Conditional: group-based',
  694:                      );
  695:     my @allscopes = ('public','guest','domains','users','course','group');
  696:     foreach my $scope (@allscopes) {
  697:         if ((!(exists($todisplay{$scope}))) || (ref($todisplay{$scope}) ne 'HASH')) {
  698:             next;
  699:         }
  700:         foreach my $key (sort(keys(%{$todisplay{$scope}}))) {
  701:             if ($count) {
  702:                 $r->print(&Apache::loncommon::start_data_table_row());
  703:             }
  704:             my ($num,$scope,$end,$start) = &unpack_acc_key($key);
  705:             my $content = $todisplay{$scope}{$key};
  706:             if ($chg eq 'delete') {
  707:                 $showstart = &mt('Deleted');
  708:                 $showend = $showstart;
  709:             } else {
  710:                 $showstart = localtime($start);
  711:                 if ($end == 0) {
  712:                     $showend = &mt('No end date');
  713:                 } else {
  714:                     $showend = localtime($end);
  715:                 }
  716:             }
  717:             $r->print('<td>'.&mt($scope_desc{$scope}));
  718:             if (($scope eq 'course') || ($scope eq 'group')) {
  719:                 if ($chg ne 'delete') {
  720:                     my $cid = $content->{'domain'}.'_'.$content->{'number'};
  721:                     my %course_description = &Apache::lonnet::coursedescription($cid);
  722:                     $r->print('<br />('.$course_description{'description'}.')');
  723:                 }
  724:             }
  725:             $r->print('</td><td>'.&mt('Start: ').$showstart.
  726:                   '<br />'.&mt('End: ').$showend.'</td><td>');
  727:             if ($chg ne 'delete') {
  728:                 if ($scope eq 'guest') {
  729:                     $r->print(&mt('Passphrase').': '.$content->{'password'});
  730:                 } elsif ($scope eq 'course' || $scope eq 'group') {
  731:                     $r->print('<table><tr>');
  732:                     $r->print('<th>'.&mt('Roles').'</th><th>'.
  733:                           &mt('Access').'</th><th>'.
  734:                                           &mt('Sections').'</th>');
  735:                     if ($scope eq 'course') {
  736:                         $r->print('<th>'.&mt('Groups').'</th>');
  737:                     } else {
  738:                         $r->print('<th>'.&mt('Teams').'</th>');
  739:                     }
  740:                     $r->print('</tr>');
  741:                     foreach my $id (sort(keys(%{$content->{'roles'}}))) {
  742:                         $r->print('<tr>');
  743:                         foreach my $item ('role','access','section','group') {
  744:                             $r->print('<td>');
  745:                             if ($item eq 'role') {
  746:                                 my $ucscope = $scope;
  747:                                 $ucscope =~ s/^(\w)/uc($1)/e;
  748:                                 my $role_output;
  749:                                 foreach my $role (@{$content->{'roles'}{$id}{$item}}) {
  750:                                     if ($role eq 'all') {
  751:                                         $role_output .= $role.',';
  752:                                     } elsif ($role =~ /^cr/) {
  753:                                         $role_output .= (split('/',$role))[3].',';
  754:                                     } else {
  755:                                         $role_output .= &Apache::lonnet::plaintext($role,$ucscope).',';
  756:                                     }
  757:                                 }
  758:                                 $role_output =~ s/,$//;
  759:                                 $r->print($role_output);
  760:                             } else {
  761:                                 $r->print(join(',',@{$content->{'roles'}{$id}{$item}}));
  762:                             }
  763:                             $r->print('</tr>');
  764:                         }
  765: 			$r->print("</table>");
  766:                     }
  767: 		    $r->print("</tr></table>");
  768:                 } elsif ($scope eq 'domains') {
  769:                     $r->print(&mt('Domains: ').join(',',@{$content->{'dom'}}));
  770:                 } elsif ($scope eq 'users') {
  771:                     my $curr_user_list = &sort_users($content->{'users'});
  772:                     $r->print(&mt('Users: ').$curr_user_list);
  773:                 } else {
  774:                     $r->print('&nbsp;');
  775:                 }
  776:             } else {
  777:                 $r->print('&nbsp;');
  778:             }
  779:             $r->print('</td>');
  780:             $r->print(&Apache::loncommon::end_data_table_row());
  781:             $count ++;
  782:         }
  783:     }
  784: }
  785: 
  786: 
  787: sub update_access {
  788:     my ($r,$url,$group,$port_path) = @_;
  789:     my $totalprocessed = 0;
  790:     my %processing;
  791:     my %title  = (
  792:                          'activate' => 'New control(s) added',
  793:                          'delete'   => 'Existing control(s) deleted',
  794:                          'update'   => 'Existing control(s) modified',
  795:                      );
  796:     my $changes;
  797:     foreach my $chg (sort(keys(%title))) {     
  798:         @{$processing{$chg}} = &Apache::loncommon::get_env_multiple('form.'.$chg);
  799:         $totalprocessed += @{$processing{$chg}};
  800:         foreach my $num (@{$processing{$chg}}) {
  801:             my $scope = $env{'form.scope_'.$num};
  802:             my ($start,$end) = &get_dates_from_form($num);
  803:             my $newkey = $num.':'.$scope.'_'.$end.'_'.$start;
  804:             if ($chg eq 'delete') {
  805:                 $$changes{$chg}{$newkey} = 1;
  806:             } else {
  807:                 $$changes{$chg}{$newkey} = 
  808:                             &build_access_record($num,$scope,$start,$end,$chg);
  809:             }
  810:         }
  811:     }
  812:     my $file_name = $env{'form.currentpath'}.$env{'form.selectfile'};
  813:     $r->print('<h3>'.&mt('Allowing others to retrieve file: [_1]',
  814:               $port_path.$file_name).'</h3>'."\n");
  815:     $file_name = &prepend_group($file_name);
  816:     my ($uname,$udom) = &get_name_dom();
  817:     my ($errors,$outcome,$deloutcome,$new_values,$translation);
  818:     if ($totalprocessed) {
  819:         ($outcome,$deloutcome,$new_values,$translation) =
  820:         &Apache::lonnet::modify_access_controls($file_name,$changes,$udom,
  821:                                                 $uname);
  822:     }
  823:     my $current_permissions = &Apache::lonnet::get_portfile_permissions($udom,
  824:                                                                        $uname);
  825:     my %access_controls = 
  826: 	&Apache::lonnet::get_access_controls($current_permissions,
  827: 					     $group,$file_name);
  828:     if ($totalprocessed) {
  829:         if ($outcome eq 'ok') {
  830:             my $updated_controls = $access_controls{$file_name};
  831:             my ($showstart,$showend);
  832:             $r->print(&Apache::loncommon::start_data_table());
  833:             $r->print(&Apache::loncommon::start_data_table_header_row());
  834:             $r->print('<th>'.&mt('Type of change').'</th><th>'.
  835:                       &mt('Access control').'</th><th>'.&mt('Dates available').
  836:                       '</th><th>'.&mt('Additional information').'</th>');
  837:             $r->print(&Apache::loncommon::end_data_table_header_row());
  838:             foreach my $chg (sort(keys(%processing))) {
  839:                 if (@{$processing{$chg}} > 0) {
  840:                     if ($chg eq 'delete') {
  841:                         if (!($deloutcome eq 'ok')) {
  842:                             $errors .='<span class="LC_error">'.
  843: 				&mt('A problem occurred deleting access controls: [_1]',$deloutcome).
  844: 				'</span>';
  845:                             next;
  846:                         }
  847:                     }
  848:                     my $numchgs = @{$processing{$chg}};
  849:                     $r->print(&Apache::loncommon::start_data_table_row());
  850:                     $r->print('<td rowspan="'.$numchgs.'">'.&mt($title{$chg}).
  851:                               '.</td>');
  852:                     my $count = 0;
  853:                     my %todisplay;
  854:                     foreach my $key (sort(keys(%{$$changes{$chg}}))) {
  855:                         my ($num,$scope,$end,$start) = &unpack_acc_key($key);
  856:                         my $newkey = $key;
  857:                         if ($chg eq 'activate') {
  858:                             $newkey =~ s/^(\d+)/$$translation{$1}/;
  859:                         }
  860:                         $todisplay{$scope}{$newkey} = $$updated_controls{$newkey};
  861:                     }
  862:                     &build_access_summary($r,$count,$chg,%todisplay);  
  863:                 }
  864:             }
  865:             $r->print(&Apache::loncommon::end_data_table());
  866:         } else {
  867:             if ((@{$processing{'activate'}} > 0) || (@{$processing{'update'}} > 0)) {
  868:                 $errors .= '<span class="LC_error">'.
  869: 		    &mt('A problem occurred storing access control settings: [_1]',$outcome).
  870: 		    '</span>';
  871:             }
  872:         }
  873:         if ($errors) { 
  874:             $r->print($errors);
  875:         }
  876:     }
  877:     my $allnew = 0;
  878:     my $totalnew = 0;
  879:     my $status = 'new';
  880:     my ($firstitem,$lastitem);
  881:     foreach my $newitem ('course','group','domains','users') {
  882:         $allnew += $env{'form.new'.$newitem};
  883:     }
  884:     if ($allnew > 0) {
  885:         my $now = time;
  886:         my $then = $now + (60*60*24*180); # six months approx.
  887:         &open_form($r,$url);
  888:         foreach my $newitem ('course','group','domains','users') {
  889:             if ($env{'form.new'.$newitem} > 0) {
  890:                 $r->print('<br />'.&mt('Add new <b>[_1]-based</b> access control for portfolio file: <b>[_2]</b>',$newitem,$env{'form.currentpath'}.$env{'form.selectfile'}).'<br /><br />');
  891:                 $firstitem = $totalnew;
  892:                 $lastitem = $totalnew + $env{'form.new'.$newitem};
  893:                 $totalnew = $lastitem;
  894:                 my @numbers;   
  895:                 for (my $i=$firstitem; $i<$lastitem; $i++) {
  896:                     push (@numbers,$i);
  897:                 }
  898:                 &display_access_row($r,$status,$newitem,\@numbers,
  899:                                     $access_controls{$file_name},$now,$then);
  900:             }
  901:         }
  902:         &close_form($r,$url);
  903:     } else {
  904:         my %anchor_fields = (
  905:             'currentpath' => $env{'form.currentpath'},
  906:             'access' => $env{'form.selectfile'}
  907:         );
  908:         $r->print('<br />'.&make_anchor($url, \%anchor_fields, &mt('Display all access settings for this file')));
  909:         delete $anchor_fields{'access'};
  910:         $r->print('&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&make_anchor($url,\%anchor_fields,&mt('Return to directory listing')));
  911:     }
  912:     return;
  913: }
  914: 
  915: sub build_access_record {
  916:     my ($num,$scope,$start,$end,$chg) = @_;
  917:     my $record = {
  918: 	type => $scope,
  919: 	time => {
  920: 	    start => $start,
  921: 	    end   => $end
  922: 	    },
  923: 	    };
  924: 		
  925:     if ($scope eq 'guest') {	
  926:         $record->{'password'} = $env{'form.password'};
  927:     } elsif (($scope eq 'course') || ($scope eq 'group')) {
  928:         $record->{'domain'} = $env{'form.crsdom_'.$num};
  929: 	$record->{'number'} = $env{'form.crsnum_'.$num};
  930:         my @role_ids;
  931:         my @delete_role_ids =
  932:             &Apache::loncommon::get_env_multiple('form.delete_role_'.$num);
  933: 	my @preserves =
  934: 	    &Apache::loncommon::get_env_multiple('form.preserve_role_'.$num);
  935: 	if (@delete_role_ids) {
  936: 	    foreach my $id (@preserves) {
  937: 		if (grep {$_ = $id} (@delete_role_ids)) {
  938: 		    next;
  939: 		}
  940: 		push(@role_ids,$id); 
  941: 	    }
  942: 	} else {
  943: 	    push(@role_ids,@preserves);
  944: 	}
  945: 
  946: 	my $next_id = $env{'form.add_role_'.$num};
  947: 	if ($next_id) {
  948: 	    push(@role_ids,$next_id);
  949: 	}
  950: 
  951:         foreach my $id (@role_ids) {
  952:             my (@roles,@accesses,@sections,@groups);
  953:             if (($id == $next_id) && ($chg eq 'update')) {
  954:                 @roles    = split(/,/,$env{'form.role_'.$num.'_'.$next_id});
  955:                 @accesses = split(/,/,$env{'form.access_'.$num.'_'.$next_id});
  956:                 @sections = split(/,/,$env{'form.section_'.$num.'_'.$next_id});
  957:                 @groups   = split(/,/,$env{'form.group_'.$num.'_'.$next_id});
  958:             } else {
  959:                 @roles = &Apache::loncommon::get_env_multiple('form.role_'.$num.'_'.$id);
  960:                 @accesses = &Apache::loncommon::get_env_multiple('form.access_'.$num.'_'.$id);
  961:                 @sections = &Apache::loncommon::get_env_multiple('form.section_'.$num.'_'.$id);
  962:                 @groups = &Apache::loncommon::get_env_multiple('form.group_'.$num.'_'.$id);
  963:             }
  964: 	    $record->{'roles'}{$id}{'role'}    = \@roles;
  965: 	    $record->{'roles'}{$id}{'access'}  = \@accesses;
  966: 	    $record->{'roles'}{$id}{'section'} = \@sections;
  967: 	    $record->{'roles'}{$id}{'group'}   = \@groups;
  968:         }
  969:     } elsif ($scope eq 'domains') {
  970:         my @doms = &Apache::loncommon::get_env_multiple('form.dom_'.$num);
  971: 	$record->{'dom'} = \@doms;
  972:     } elsif ($scope eq 'users') {
  973:         my $userlist = $env{'form.users_'.$num};
  974:         $userlist =~ s/\s+//sg;
  975: 	my %userhash = map { ($_,1) } (split(/,/,$userlist));
  976:         foreach my $user (keys(%userhash)) {
  977:             my ($uname,$udom) = split(/:/,$user);
  978: 	    push(@{$record->{'users'}}, {
  979: 		'uname' => $uname,
  980: 		'udom'  => $udom
  981: 		});
  982: 	}
  983:     }
  984:     return $record;
  985: }
  986: 
  987: sub get_dates_from_form {
  988:     my ($id) = @_;
  989:     my $startdate;
  990:     my $enddate;
  991:     $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate_'.$id);
  992:     $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate_'.$id);
  993:     if ( exists ($env{'form.noend_'.$id}) ) {
  994:         $enddate = 0;
  995:     }
  996:     return ($startdate,$enddate);
  997: }
  998: 
  999: sub sort_users {
 1000:     my ($users) = @_; 
 1001:     my @curr_users = map {
 1002: 	$_->{'uname'}.':'.$_->{'udom'}
 1003:     } (@{$users});
 1004:     my $curr_user_list = join(",\n",sort(@curr_users));
 1005:     return $curr_user_list;
 1006: }
 1007: 
 1008: sub access_setting_table {
 1009:     my ($r,$access_controls) = @_;
 1010:     my ($public,$publictext);
 1011:     $publictext = &mt('Off');
 1012:     my ($guest,$guesttext);
 1013:     $guesttext = &mt('Off');
 1014:     my @courses = ();
 1015:     my @groups = ();
 1016:     my @domains = ();
 1017:     my @users = ();
 1018:     my $now = time;
 1019:     my $then = $now + (60*60*24*180); # six months approx.
 1020:     my ($num,$scope,$publicnum,$guestnum);
 1021:     my (%acl_count,%end,%start);
 1022:     foreach my $key (sort(keys(%{$access_controls}))) {
 1023:         ($num,$scope,$end{$key},$start{$key}) = &unpack_acc_key($key);
 1024:         if ($scope eq 'public') {
 1025:             $public = $key;
 1026:             $publicnum = $num;
 1027:             $publictext = &acl_status($start{$key},$end{$key},$now);
 1028:         } elsif ($scope eq 'guest') {
 1029:             $guest=$key;
 1030:             $guestnum = $num;  
 1031:             $guesttext = &acl_status($start{$key},$end{$key},$now);
 1032:         } elsif ($scope eq 'course') {
 1033:             push(@courses,$key);
 1034:         } elsif ($scope eq 'group') {
 1035:             push(@groups,$key);
 1036:         } elsif ($scope eq 'domains') {
 1037:             push(@domains,$key);
 1038:         } elsif ($scope eq 'users') {
 1039:             push(@users,$key);
 1040:         }
 1041:         $acl_count{$scope} ++;
 1042:     }
 1043:     $r->print('<table border="0"><tr><td valign="top">');
 1044:     $r->print('<h3>'.&mt('Public access:').' '.$publictext.'</h3>');
 1045:     $r->print(&Apache::loncommon::start_data_table());
 1046:     $r->print(&Apache::loncommon::start_data_table_header_row());
 1047:     $r->print('<th>'.&mt('Action').'</th><th>'.&mt('Dates available').'</th>');
 1048:     $r->print(&Apache::loncommon::end_data_table_header_row());
 1049:     $r->print(&Apache::loncommon::start_data_table_row());
 1050:     if ($public) {
 1051:         $r->print('<td>'.&actionbox('old',$publicnum,'public').'</td><td>'.
 1052:                   &dateboxes($publicnum,$start{$public},$end{$public}).'</td>');
 1053:     } else {
 1054:         $r->print('<td>'.&actionbox('new','0','public').'</td><td>'.
 1055:                   &dateboxes('0',$now,$then).'</td>');
 1056:     }
 1057:     $r->print(&Apache::loncommon::end_data_table_row());
 1058:     $r->print(&Apache::loncommon::end_data_table());
 1059:     $r->print('</td><td width="40">&nbsp;</td><td valign="top">');
 1060:     $r->print('<h3>'.&mt('Passphrase-protected access:').' '.$guesttext.'</h3>');
 1061:     $r->print(&Apache::loncommon::start_data_table());
 1062:     $r->print(&Apache::loncommon::start_data_table_header_row());
 1063:     $r->print('<th>'.&mt('Action').'</th><th>'.&mt('Dates available').
 1064:               '</th><th>'. &mt('Passphrase').'</th>');
 1065:     $r->print(&Apache::loncommon::end_data_table_header_row());
 1066:     $r->print(&Apache::loncommon::start_data_table_row());
 1067:     my $passwd;
 1068:     if ($guest) {
 1069:         $passwd = $$access_controls{$guest}{'password'};
 1070:         $r->print('<td>'.&actionbox('old',$guestnum,'guest').'</td><td>'.
 1071:                   &dateboxes($guestnum,$start{$guest},$end{$guest}).'</td>');
 1072:     } else {
 1073:         $r->print('<td>'.&actionbox('new','1','guest').'</td><td>'.
 1074:                   &dateboxes('1',$now,$then).'</td>');
 1075:     }
 1076:     $r->print('<td><input type="text" size="15" name="password" value="'.
 1077:               $passwd.'" /></td>');
 1078:     $r->print(&Apache::loncommon::end_data_table_row());
 1079:     $r->print(&Apache::loncommon::end_data_table());
 1080:     $r->print('</td></tr><tr><td colspan="3">&nbsp;</td></tr><tr><td valign="top">');
 1081:     &access_element($r,'domains',\%acl_count,\@domains,$access_controls,$now,$then);
 1082:     $r->print('</td><td>&nbsp;</td><td valign="top">');
 1083:     &access_element($r,'users',\%acl_count,\@users,$access_controls,$now,$then);
 1084:     $r->print('</td></tr><tr><td colspan="3"></td></tr><tr>');
 1085:     if (@courses > 0 || @groups > 0) {
 1086:         $r->print('<td colspan="3" valign="top">');
 1087:     } else {
 1088:         $r->print('<td valign="top">');
 1089:     }
 1090:     &access_element($r,'course',\%acl_count,\@courses,$access_controls,$now,$then);
 1091:     $r->print('</td>');
 1092:     if (@courses > 0 || @groups > 0) {
 1093:         $r->print('</tr><tr><td colspan="3">&nbsp;</td></tr><tr><td colspan="3" valign="top">');
 1094:     } else {
 1095:         $r->print('<td>&nbsp;</td><td valign="top">');
 1096:     }
 1097:     &access_element($r,'group',\%acl_count,\@groups,$access_controls,$now,$then);
 1098:     $r->print('</td></tr></table>');
 1099: }
 1100: 
 1101: sub acl_status {
 1102:     my ($start,$end,$now) = @_;
 1103:     if ($start > $now) {
 1104:         return &mt('Inactive');
 1105:     }
 1106:     if ($end && $end<$now) {
 1107:         return &mt('Inactive');
 1108:     }
 1109:     return &mt('Active');
 1110: }
 1111: 
 1112: sub access_element {
 1113:     my ($r,$type,$acl_count,$items,$access_controls,$now,$then) = @_;
 1114:     my $title = $type;
 1115:     $title =~ s/s$//;
 1116:     $title =~ s/^(\w)/uc($1)/e;
 1117:     $r->print('<h3>'.&mt('[_1]-based conditional access: ',$title));
 1118:     if ($$acl_count{$type}) {
 1119:         $r->print($$acl_count{$type}.' ');
 1120:         if ($$acl_count{$type} > 1) {
 1121:             $r->print(&mt('conditions'));
 1122:         } else {
 1123:             $r->print(&mt('condition'));
 1124:         }
 1125:     } else {
 1126:         $r->print(&mt('Off'));
 1127:     }
 1128:     $r->print('</h3>');
 1129:     &display_access_row($r,'old',$type,$items,$access_controls,$now,$then);
 1130:     return;
 1131: }
 1132: 
 1133: sub display_access_row {
 1134:     my ($r,$status,$type,$items,$access_controls,$now,$then) = @_;
 1135:     if (@{$items} > 0) {
 1136:         my @all_doms;
 1137:         my $colspan = 3;
 1138:         my $uctype = $type;
 1139:         $uctype =~ s/^(\w)/uc($1)/e;
 1140:         $r->print(&Apache::loncommon::start_data_table());
 1141:         $r->print(&Apache::loncommon::start_data_table_header_row());
 1142:         $r->print('<th>'.&mt('Action?').'</th><th>'.&mt($uctype).'</th><th>'.
 1143:               &mt('Dates available').'</th>');
 1144:         if (($type eq 'course') || ($type eq 'group')) {
 1145:             $r->print('<th>'.&mt('Allowed [_1] member affiliations',$type).
 1146:                       '</th>');
 1147:             $colspan ++;
 1148:         } elsif ($type eq 'domains') {
 1149:             @all_doms = &Apache::loncommon::get_domains();
 1150:         }
 1151:         $r->print(&Apache::loncommon::end_data_table_header_row());
 1152:         foreach my $key (@{$items}) {
 1153: 	    $r->print(&Apache::loncommon::start_data_table_row());
 1154:             if (($type eq 'course') || ($type eq 'group')) {
 1155:                 &course_row($r,$status,$type,$key,$access_controls,$now,$then);
 1156:             } elsif ($type eq 'domains') {
 1157:                 &domains_row($r,$status,$key,\@all_doms,$access_controls,$now,
 1158:                             $then);
 1159:             } elsif ($type eq 'users') {
 1160:                 &users_row($r,$status,$key,$access_controls,$now,$then);
 1161:             }
 1162: 	    $r->print(&Apache::loncommon::end_data_table_row());
 1163:         }
 1164:         if ($status eq 'old') {
 1165: 	    $r->print(&Apache::loncommon::start_data_table_row());
 1166:             $r->print('<td colspan="',$colspan.'">'.&additional_item($type).
 1167:                       '</td>');
 1168: 	    $r->print(&Apache::loncommon::end_data_table_row());
 1169:         }
 1170:         $r->print(&Apache::loncommon::end_data_table());
 1171:     } else {
 1172:         $r->print(&mt('No [_1]-based conditions defined.<br />',$type).
 1173:                   &additional_item($type));
 1174:     }
 1175:     return;
 1176: }
 1177: 
 1178: sub course_js {
 1179:     return qq|
 1180: <script type="text/javascript">
 1181: function setRoleOptions(caller,num,cdom,cnum,type) {
 1182:     addIndexnum = getCallerIndex(caller);
 1183:     updateIndexnum = getIndex('update',num);
 1184:     if (caller.checked) {
 1185:         document.portform.elements[updateIndexnum].checked = true;
 1186:         var url = '/adm/portfolio?action=rolepicker&setroles='+addIndexnum+'&cnum='+cnum+'&cdom='+cdom+'&type='+type;
 1187:         var title = 'Roles_Chooser';
 1188:         var options = 'scrollbars=1,resizable=1,menubar=0';
 1189:         options += ',width=700,height=600';
 1190:         rolebrowser = open(url,title,options,'1');
 1191:         rolebrowser.focus();
 1192:     } else {
 1193:         for (var j=0;j<5;j++) {
 1194:             document.portform.elements[addIndexnum+j].value = '';
 1195:         }
 1196:     }
 1197: }
 1198: 
 1199: function getCallerIndex(caller) {
 1200:     for (var i=0;i<document.portform.elements.length;i++) {
 1201:         if (document.portform.elements[i] == caller) {
 1202:             return i;
 1203:         }
 1204:     }
 1205:     return -1;
 1206: }
 1207: 
 1208: function getIndex(name,value) {
 1209:     for (var i=0;i<document.portform.elements.length;i++) {
 1210:         if (document.portform.elements[i].name == name && document.portform.elements[i].value == value) {
 1211:             return i;
 1212:         }
 1213:     }
 1214:     return -1;
 1215: }
 1216: 
 1217: </script>
 1218: |;
 1219: }
 1220: 
 1221: sub course_row {
 1222:     my ($r,$status,$type,$item,$access_controls,$now,$then) = @_;
 1223:     my $content;
 1224:     my $defdom = $env{'user.domain'};
 1225:     if ($status eq 'old') {
 1226:         $content = $$access_controls{$item}; 
 1227:         $defdom =  $content->{'domain'};
 1228:     }
 1229:     my $js = &Apache::loncommon::coursebrowser_javascript($defdom)
 1230: 	.&course_js();
 1231:     my $crsgrptext = 'Groups';
 1232:     if ($type eq 'group') {
 1233:         $crsgrptext = 'Teams';
 1234:     }
 1235:     my $uctype = $type;
 1236:     $uctype =~ s/^(\w)/uc($1)/e;
 1237:     my ($num,$scope,$end,$start) = &set_identifiers($status,$item,$now,$then,
 1238:                                                     $type);
 1239:     $r->print('<td>'.$js.&actionbox($status,$num,$scope).'</td>');
 1240:     if ($status eq 'old') {
 1241:         my $cid = $content->{'domain'}.'_'.$content->{'number'};
 1242:         my %course_description = &Apache::lonnet::coursedescription($cid);
 1243:         $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>');
 1244:     } elsif ($status eq 'new') {
 1245:         $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>');
 1246:     }
 1247:     $r->print('<td>'.&dateboxes($num,$start,$end).'</td>');
 1248:     $r->print('<td><table><tr>');
 1249:     $r->print('<th>'.&mt('Action').'</th><th>'.&mt('Roles').'</th><th>'.
 1250:               &mt('Access').'</th><th>'.&mt('Sections').'</th><th>'.
 1251:               &mt($crsgrptext).'</th></tr>');
 1252:     if ($status eq 'old') {
 1253:         my $max_id = 0;
 1254:         foreach my $role_id (sort(keys(%{$content->{'roles'}}))) {
 1255:             if ($role_id > $max_id) {
 1256:                 $max_id = $role_id;
 1257:             }
 1258:             $max_id ++;
 1259:             my $role_selects = &role_selectors($num,$role_id,$status,$type,$content,'display');
 1260:             $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>');
 1261:         }
 1262:         $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>');
 1263:     } elsif ($status eq 'new') {
 1264:         my $role_id = 1;
 1265:         my $role_selects = &role_selectors($num,$role_id,$status,$type,undef,'display');
 1266:         $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);
 1267:         $r->print('</tr></table></td>');
 1268:     }
 1269:     return;
 1270: }
 1271: 
 1272: sub domains_row {
 1273:     my ($r,$status,$item,$all_doms,$access_controls,$now,$then) = @_;
 1274:     my ($num,$scope,$end,$start) = &set_identifiers($status,$item,$now,$then,
 1275:                                                     'domains');
 1276:     my $dom_select = '<select name="dom_'.$num.'" size="4" multiple="true">'.
 1277:                      ' <option value="">'.&mt('Please select').'</option>';
 1278:     if ($status eq 'old') {
 1279:         my $content =  $$access_controls{$item};
 1280: 	foreach my $dom (@{$all_doms}) {
 1281:             if ((@{$content->{'dom'}} > 0) 
 1282: 		&& (grep(/^\Q$dom\E$/,@{$content->{'dom'}}))) {
 1283:                 $dom_select .= '<option value="'.$dom.'" selected>'.
 1284:                                $dom.'</option>';
 1285:             } else {
 1286:                 $dom_select .= '<option value="'.$dom.'">'.$dom.'</option>';
 1287:             }
 1288:         }
 1289:     } else {
 1290:         foreach my $dom (@{$all_doms}) {
 1291:             $dom_select .= '<option value="'.$dom.'">'.$dom.'</option>';
 1292:         }
 1293:     }
 1294:     $dom_select .= '</select>';
 1295:     $r->print('<td>'.&actionbox($status,$num,$scope).'</td><td>'.$dom_select.
 1296:               '</td><td>'.&dateboxes($num,$start,$end).'</td>');
 1297: }
 1298: 
 1299: sub users_row {
 1300:     my ($r,$status,$item,$access_controls,$now,$then) = @_;
 1301:     my ($num,$scope,$end,$start) = &set_identifiers($status,$item,$now,$then,
 1302:                                                     'users');
 1303:     my $curr_user_list;
 1304:     if ($status eq 'old') {
 1305:         my $content = $$access_controls{$item};
 1306:         $curr_user_list = &sort_users($content->{'users'});
 1307:     }
 1308:     $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>');
 1309: }
 1310: 
 1311: sub additional_item {
 1312:     my ($type) = @_;
 1313:     my $output = &mt('Add new [_1] condition(s)?',$type).'&nbsp;'.&mt('Number to add: ').'<input type="text" name="new'.$type.'" size="3" value="0" />';
 1314:     return $output;
 1315: }
 1316: 
 1317: sub actionbox {
 1318:     my ($status,$num,$scope) = @_;
 1319:     my $output = '<span style="white-space: nowrap"><label>';
 1320:     if ($status eq 'new') {
 1321:         $output .= '<input type="checkbox" name="activate" value="'.$num.'" />'.
 1322:         &mt('Activate');
 1323:     } else {
 1324:         $output .= '<input type="checkbox" name="delete" value="'.$num.
 1325:                    '" />'.&mt('Delete').'</label></span><br /><span style="white-space: nowrap">'.
 1326:                    '<label><input type="checkbox" name="update" value="'.
 1327:                    $num.'" />'.&mt('Update');
 1328:     }
 1329:     $output .= '</label></span><input type="hidden" name="scope_'.$num.                '" value="'.$scope.'" />';
 1330:     return $output;
 1331: }
 1332:                                                                                    
 1333: sub dateboxes {
 1334:     my ($num,$start,$end) = @_;
 1335:     my $noend;
 1336:     if ($end == 0) {
 1337:         $noend = 'checked="checked"';
 1338:     }
 1339:     my $startdate = &Apache::lonhtmlcommon::date_setter('portform',
 1340:                            'startdate_'.$num,$start,undef,undef,undef,1,undef,
 1341:                             undef,undef,1);
 1342:     my $enddate = &Apache::lonhtmlcommon::date_setter('portform',
 1343:                                'enddate_'.$num,$end,undef,undef,undef,1,undef,
 1344:                                 undef,undef,1). '&nbsp;&nbsp;<span style="white-space: nowrap"><label>'.
 1345:                                 '<input type="checkbox" name="noend_'.
 1346:                                 $num.'" '.$noend.' />'.&mt('No end date').
 1347:                                 '</label></span>';
 1348:                                                                                    
 1349:     my $output = &mt('Start: ').$startdate.'<br />'.&mt('End: ').$enddate;
 1350:     return $output;
 1351: }
 1352: 
 1353: sub unpack_acc_key {
 1354:     my ($acc_key) = @_;
 1355:     my ($num,$scope,$end,$start) = ($acc_key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
 1356:     return ($num,$scope,$end,$start);
 1357: }
 1358: 
 1359: sub set_identifiers {
 1360:     my ($status,$item,$now,$then,$scope) = @_;
 1361:     if ($status eq 'old') {
 1362:         return(&unpack_acc_key($item));
 1363:     } else {
 1364:         return($item,$scope,$then,$now);
 1365:     }
 1366: } 
 1367: 
 1368: sub role_selectors {
 1369:     my ($num,$role_id,$status,$type,$content,$caller) = @_;
 1370:     my ($output,$cdom,$cnum,$longid);
 1371:     if ($caller eq 'display') {
 1372:         $longid = '_'.$num.'_'.$role_id;
 1373:         if ($status eq 'new') {
 1374:             foreach my $item ('role','access','section','group') {
 1375:                 $output .= '<td><select name="'.$item.$longid.'">'.
 1376:                            '<option value="">'.&mt('Pick [_1] first',$type).
 1377:                            '</option></select></td>';
 1378:             }
 1379:             return $output;
 1380:         } else {
 1381:             $cdom = $$content{'domain'};
 1382:             $cnum = $$content{'number'};
 1383:         }
 1384:     } elsif ($caller eq 'rolepicker') {
 1385:          $cdom = $env{'form.cdom'};
 1386:          $cnum = $env{'form.cnum'};
 1387:     }
 1388:     my $uctype = $type;
 1389:     $uctype =~ s/^(\w)/uc($1)/e;
 1390:     my ($sections,$groups,$allroles,$rolehash,$accesshash) =
 1391:             &Apache::loncommon::get_secgrprole_info($cdom,$cnum,1,$uctype);
 1392:     if (!@{$sections}) {
 1393:         @{$sections} = ('none');
 1394:     } else {
 1395:         unshift(@{$sections},('all','none'));
 1396:     }
 1397:     if (!@{$groups}) {
 1398:         @{$groups} = ('none');
 1399:     } else {
 1400:         unshift(@{$groups},('all','none'));
 1401:     }
 1402:     my @allacesses = sort(keys(%{$accesshash}));
 1403:     my (%sectionhash,%grouphash);
 1404:     foreach my $sec (@{$sections}) {
 1405:         $sectionhash{$sec} = $sec;
 1406:     }
 1407:     foreach my $grp (@{$groups}) {
 1408:         $grouphash{$grp} = $grp;
 1409:     }
 1410:     my %lookup = (
 1411:                    'role' => $rolehash,
 1412:                    'access' => $accesshash,
 1413:                    'section' => \%sectionhash,
 1414:                    'group' => \%grouphash,
 1415:                  );
 1416:     my @allaccesses = sort(keys(%{$accesshash}));
 1417:     my %allitems = (
 1418:                     'role' => $allroles,
 1419:                     'access' => \@allaccesses,
 1420:                     'section' => $sections,
 1421:                     'group' => $groups, 
 1422:                    );
 1423:     foreach my $item ('role','access','section','group') {
 1424:         $output .= '<td><select name="'.$item.$longid.'" multiple="true" size="4">'."\n";
 1425:         foreach my $entry (@{$allitems{$item}}) {
 1426:             if ($caller eq 'display') {
 1427:                 if ((@{$$content{'roles'}{$role_id}{$item}} > 0) && 
 1428:                     (grep(/^\Q$entry\E$/,@{$$content{'roles'}{$role_id}{$item}}))) {
 1429:                     $output .= '  <option value="'.$entry.'" selected>'.
 1430:                                   $lookup{$item}{$entry}.'</option>';
 1431:                     next;
 1432:                 }
 1433:             }
 1434:             $output .= '  <option value="'.$entry.'">'.
 1435:                        $lookup{$item}{$entry}.'</option>';
 1436:         }
 1437:         $output .= '</select>';
 1438:     }
 1439:     $output .= '</td>';
 1440:     return $output;
 1441: }
 1442: 
 1443: sub role_options_window {
 1444:     my ($r) = @_;
 1445:     my $cdom = $env{'form.cdom'};
 1446:     my $cnum = $env{'form.cnum'};
 1447:     my $type = $env{'form.type'};
 1448:     my $addindex = $env{'form.setroles'};
 1449:     my $grouptitle = 'Groups';
 1450:     if ($type eq 'Group') {
 1451:          $grouptitle = 'Teams';
 1452:     } 
 1453:     my $role_selects = &role_selectors(1,1,'new',$type,undef,'rolepicker');
 1454:     $r->print(<<"END_SCRIPT");
 1455: <script type="text/javascript">
 1456: function setRoles() {
 1457:     var addidx = $addindex+1;
 1458:     for (var i=0; i<4; i++) {
 1459:         var copylist = '';
 1460:         for (var j=0; j<document.rolepicker.elements[i].length; j++) {
 1461:             if (document.rolepicker.elements[i].options[j].selected) {
 1462:                 copylist = copylist + document.rolepicker.elements[i].options[j].value + ',';
 1463:             }
 1464:         }
 1465:         copylist = copylist.substr(0,copylist.length-1);
 1466:         opener.document.portform.elements[addidx+i].value = copylist;
 1467:     }
 1468:     self.close();
 1469: }
 1470: </script>
 1471: END_SCRIPT
 1472:     $r->print(&mt('Select roles, course status, section(s) and group(s) for users who will be able to access the portfolio file.'));
 1473:     $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()" />');
 1474:     return;
 1475: }
 1476: 
 1477: sub select_files {
 1478:     my ($r) = @_;
 1479:     if ($env{'form.continue'} eq 'true') {
 1480:         # here we update the selections for the currentpath
 1481:         # eventually, have to handle removing those not checked, but . . . 
 1482:         my @items=&Apache::loncommon::get_env_multiple('form.checkfile');
 1483:         if (scalar(@items)){
 1484:              &Apache::lonnet::save_selected_files($env{'user.name'}, $env{'form.currentpath'}, @items);
 1485:         }
 1486:     } else {
 1487:             #empty the file for a fresh start
 1488:             &Apache::lonnet::clear_selected_files($env{'user.name'});
 1489:     }
 1490:     my @files = &Apache::lonnet::files_not_in_path($env{'user.name'}, $env{'form.currentpath'});
 1491:     my $java_files = join ",", @files;
 1492:     if ($java_files) {
 1493:         $java_files.=',';
 1494:     }
 1495:     my $javascript =(<<ENDSMP);
 1496:         <script type="text/javascript">
 1497:         function finishSelect() {
 1498: ENDSMP
 1499:     $javascript .= 'fileList = "'.$java_files.'";';
 1500:     $javascript .= (<<ENDSMP);
 1501:             for (i=0;i<document.forms.checkselect.length;i++) { 
 1502:                 if (document.forms.checkselect[i].checked){
 1503:                     fileList = fileList + document.forms.checkselect.currentpath.value + document.forms.checkselect[i].value + "," ;
 1504:                 }
 1505:             }
 1506:             opener.document.forms.lonhomework.$env{'form.fieldname'}.value=fileList;
 1507:             self.close();
 1508:         }
 1509:         </script>
 1510: ENDSMP
 1511:     $r->print($javascript);
 1512:     $r->print("<h1>Select portfolio files</h1>
 1513:                 Check as many as you wish in response to the problem.<br />");
 1514:     my @otherfiles=&Apache::lonnet::files_not_in_path($env{'user.name'}, $env{'form.currentpath'});
 1515:     if (@otherfiles) {
 1516: 	$r->print("<strong>Files selected from other directories:</strong><br />");
 1517: 	foreach my $file (@otherfiles) {
 1518: 	    $r->print($file."<br />");
 1519: 	}
 1520:     }
 1521: }
 1522: 
 1523: sub upload {
 1524:     my ($r,$url,$group)=@_;
 1525:     my $fname=$env{'form.uploaddoc.filename'};
 1526:     my $filesize = (length($env{'form.uploaddoc'})) / 1000; #express in k (1024?)
 1527:     my $disk_quota = 20000; # expressed in k
 1528:     if (defined($group)) {
 1529:         my $grp_quota = &get_group_quota($group); # quota expressed in k 
 1530:         if ($grp_quota ne '') {
 1531:             $disk_quota = $grp_quota;
 1532:         } else {
 1533:             $disk_quota = 0;
 1534:         }
 1535:     }
 1536:     $fname=&Apache::lonnet::clean_filename($fname);
 1537: 
 1538:     my $portfolio_root=&get_portfolio_root();
 1539:     my ($uname,$udom) = &get_name_dom();
 1540:     my $port_path = &get_port_path();
 1541:     # Fixme --- Move the checking for existing file to LOND error return
 1542:     my @dir_list=&get_dir_list($portfolio_root);
 1543:     my $found_file = 0;
 1544:     my $locked_file = 0;
 1545:     foreach my $line (@dir_list) {
 1546:         my ($file_name)=split(/\&/,$line,2);
 1547:         if ($file_name eq $fname){
 1548:             $file_name = $env{'form.currentpath'}.$file_name;
 1549:             $file_name = &prepend_group($file_name);
 1550:             $found_file = 1;
 1551:             if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
 1552:                 $locked_file = 1;
 1553:             } 
 1554:         }
 1555:     }
 1556:     my $current_disk_usage = &Apache::lonnet::diskusage($udom,$uname,$portfolio_root);
 1557:     if (($current_disk_usage + $filesize) > $disk_quota){
 1558:         $r->print('<span class="LC_error">Unable to upload <strong>'.$fname.' (size = '.$filesize.' kilobytes)</strong>. Disk quota will be exceeded.</span>'.
 1559:                   '<br />Disk quota is '.$disk_quota.' kilobytes. Your current disk usage is '.$current_disk_usage.' kilobytes.');
 1560:         $r->print(&done('Back',$url));
 1561:     } 
 1562:     elsif ($found_file){
 1563:         if ($locked_file){
 1564:             $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>'.
 1565:                   '<br />You will be able to rename or delete existing '.$fname.' after a grade has been assigned.');
 1566:             $r->print(&done('Back',$url));      
 1567:         } else {   
 1568:             $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>'.
 1569:                   '<br />To upload, rename or delete existing '.$fname.' in '.$port_path.$env{'form.currentpath'});
 1570:             $r->print(&done('Back',$url));
 1571:         }
 1572:     } else {
 1573:         my $result=&Apache::lonnet::userfileupload('uploaddoc','',
 1574: 	        	 $port_path.$env{'form.currentpath'});
 1575:         if ($result !~ m|^/uploaded/|) {
 1576:             $r->print('<span class="LC_error">'.'An errror occured ('.$result.
 1577: 	              ') while trying to upload '.&display_file().'</span><br />');
 1578: 	    $r->print(&done('Back',$url));
 1579:         } else {
 1580:             $r->print(&done(undef,$url));
 1581:         }
 1582:     }
 1583: }
 1584: 
 1585: sub lock_info {
 1586:     my ($r,$url,$group) = @_;
 1587:     my ($uname,$udom) = &get_name_dom();
 1588:     my $current_permissions = &Apache::lonnet::get_portfile_permissions($udom,
 1589:                                                                        $uname);
 1590:     my $file_name = $env{'form.lockinfo'};
 1591:     $file_name = &prepend_group($file_name);
 1592:     if (defined($file_name) && defined($$current_permissions{$file_name})) {
 1593:         foreach my $array_item (@{$$current_permissions{$file_name}}) {
 1594:             if (ref($array_item) eq 'ARRAY') {
 1595:                 my $filetext;
 1596:                 if (defined($group)) {
 1597:                     $filetext = '<strong>'.$env{'form.lockinfo'}.
 1598:                                     '</strong> (group: '.$group.')'; 
 1599:                 } else {
 1600:                     $filetext = '<strong>'.$file_name.'</strong>';
 1601:                 } 
 1602:                 $r->print(&mt('[_1] was submitted in response to problem: ',
 1603:                               $filetext).
 1604:                           '<strong>'.&Apache::lonnet::gettitle($$array_item[0]).
 1605:                           '</strong><br />');
 1606:                 my %course_description = &Apache::lonnet::coursedescription($$array_item[1]);
 1607:                 $r->print(&mt('In the course: <strong>[_1]</strong><br />',
 1608:                               $course_description{'description'}));
 1609:                 # $r->print('the third is '.$$array_item[2].'<br>');
 1610:                 # $r->print("item is $$array_item[0]<br> and $$array_item[0]");
 1611:             }
 1612:         }
 1613:     }
 1614:     $r->print(&done('Back',$url));
 1615:     return 'ok';
 1616: }
 1617: 
 1618: sub createdir {
 1619:     my ($r,$url)=@_;
 1620:     my $newdir=&Apache::lonnet::clean_filename($env{'form.newdir'});
 1621:     if ($newdir eq '') {
 1622:     	$r->print('<span class="LC_error">'.
 1623: 	    	  &mt("Error: no directory name was provided.").
 1624: 		      '</span><br />');
 1625: 	    $r->print(&done(undef,$url));
 1626: 	    return;
 1627:     }
 1628:     my $portfolio_root = &get_portfolio_root(); 
 1629:     my @dir_list=&get_dir_list($portfolio_root);
 1630:     my $found_file = 0;
 1631:     foreach my $line (@dir_list) {
 1632:         my ($filename)=split(/\&/,$line,2);
 1633:         if ($filename eq $newdir){
 1634:             $found_file = 1;
 1635:         }
 1636:     }
 1637:     if ($found_file){
 1638:     	    $r->print('<span class="LC_error">'.'Unable to create a directory named <strong>'.$newdir.
 1639:     	            ' </strong>a file or directory by that name already exists.</span><br />');
 1640:     } else {
 1641:         my ($uname,$udom) = &get_name_dom();
 1642:         my $port_path = &get_port_path();
 1643:         my $result=&Apache::lonnet::mkdiruserfile($uname,$udom,
 1644: 	         $port_path.$env{'form.currentpath'}.$newdir);
 1645:         if ($result ne 'ok') {
 1646:     	    $r->print('<span class="LC_error">'.'An errror occured ('.$result.
 1647: 	    	      ') while trying to create a new directory '.&display_file().'</span><br />');
 1648:         }
 1649:     }
 1650:     if ($newdir ne $env{'form.newdir'}) {
 1651:         $r->print("The new directory name was changed from:<br /><strong>".$env{'form.newdir'}."</strong> to <strong>$newdir </strong>");  
 1652:     }
 1653:     $r->print(&done(undef,$url));
 1654: }
 1655: 
 1656: sub get_portfolio_root {
 1657:     my ($uname,$udom) = &get_name_dom();
 1658:     my $path;
 1659:     if (defined($env{'form.group'})) {
 1660:         $path = '/userfiles/groups/'.$env{'form.group'}.'/portfolio';
 1661:     } else {
 1662:         $path = '/userfiles/portfolio';
 1663:     }
 1664:     return (&Apache::loncommon::propath($udom,$uname).$path);
 1665: }
 1666: 
 1667: sub get_group_quota {
 1668:     my ($group) = @_;
 1669:     my $group_quota; 
 1670:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 1671:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 1672:     my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum,$group);
 1673:     if (%curr_groups) {
 1674:         my %group_info =  &Apache::longroup::get_group_settings(
 1675:                                                     $curr_groups{$group});
 1676:         $group_quota = $group_info{'quota'}; #expressed in Mb
 1677:         if ($group_quota) {
 1678:             $group_quota = 1000 * $group_quota; #expressed in k
 1679:         } 
 1680:     }
 1681:     return $group_quota;
 1682: } 
 1683: 
 1684: sub get_dir_list {
 1685:     my ($portfolio_root) = @_;
 1686:     my ($uname,$udom) = &get_name_dom();
 1687:     return &Apache::lonnet::dirlist($env{'form.currentpath'},
 1688:                                           $udom,$uname,$portfolio_root);
 1689: }
 1690: 
 1691: sub get_name_dom {
 1692:     my ($uname,$udom);
 1693:     if (defined($env{'form.group'})) {
 1694:         $udom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 1695:         $uname = $env{'course.'.$env{'request.course.id'}.'.num'};
 1696:     } else {
 1697:         $udom = $env{'user.domain'};
 1698:         $uname = $env{'user.name'};
 1699:     }
 1700:     return ($uname,$udom);
 1701: }
 1702: 
 1703: sub prepend_group {
 1704:     my ($filename) = @_;
 1705:     if (defined($env{'form.group'})) {
 1706:         $filename = $env{'form.group'}.$filename;
 1707:     }
 1708:     return $filename;
 1709: }
 1710: 
 1711: sub get_namespace {
 1712:     my $namespace = 'portfolio';
 1713:     if (defined($env{'form.group'})) {
 1714:         my ($uname,$udom) = &get_name_dom();
 1715:         $namespace .= '_'.$udom.'_'.$uname.'_'.$env{'form.group'};
 1716:     }
 1717:     return $namespace;
 1718: }
 1719: 
 1720: sub get_port_path {
 1721:     my $port_path;
 1722:     if (defined($env{'form.group'})) {
 1723:        $port_path = "groups/$env{'form.group'}/portfolio";
 1724:     } else {
 1725:        $port_path = 'portfolio';
 1726:     }
 1727:     return $port_path;
 1728: }
 1729: 
 1730: sub missing_priv {
 1731:     my ($r,$url,$priv) = @_;
 1732:     my $longtext = {
 1733:                       upload => 'upload files',
 1734:                       delete => 'delete files',
 1735:                       rename => 'rename files',
 1736:                       setacl => 'set access controls for files',
 1737:                    };
 1738:     my $escpath = &HTML::Entities::encode($env{'form.currentpath'},'&<>"');
 1739:     my $rtnlink = '<a href="'.$url;
 1740:     if ($url =~ /\?/) {
 1741:         $rtnlink .= '&';
 1742:     } else {
 1743:         $rtnlink .= '?';
 1744:     }
 1745:     $rtnlink .= 'currentpath='.$escpath;
 1746:     $r->print(&mt('<h3>Action disallowed</h3>'));
 1747:     $r->print(&mt('You do not have sufficient privileges to [_1] ',
 1748:                   $longtext->{$priv}));
 1749:     if (defined($env{'form.group'})) {
 1750:         $r->print(&mt("in the group's file repository."));
 1751:         $rtnlink .= &group_args()
 1752:     } else {
 1753:         $r->print(&mt('in this portfolio.'));
 1754:     }
 1755:     $rtnlink .= '">'.&mt('Return to directory listing page').'</a>';
 1756:     $r->print('<br />'.$rtnlink);
 1757:     $r->print(&Apache::loncommon::end_page());
 1758:     return;
 1759: }
 1760: 
 1761: sub coursegrp_portfolio_header {
 1762:     my ($cdom,$cnum,$grp_desc)=@_;
 1763:     my $gpterm  = &Apache::loncommon::group_term();
 1764:     my $ucgpterm = $gpterm;
 1765:     $ucgpterm =~ s/^(\w)/uc($1)/e;
 1766:     if ($env{'form.ref'}) {
 1767:         &Apache::lonhtmlcommon::add_breadcrumb
 1768:             ({href=>"/adm/coursegroups",
 1769:               text=>"Groups",
 1770:               title=>"Course Groups"});
 1771:     }
 1772:     &Apache::lonhtmlcommon::add_breadcrumb
 1773:         ({href=>"/adm/$cdom/$cnum/$env{'form.group'}/smppg?ref=$env{'form.ref'}",
 1774:           text=>"$ucgpterm: $grp_desc",
 1775:           title=>"Go to group's home page"},
 1776:          {href=>"/adm/coursegrp_portfolio?".&group_args(),
 1777:           text=>"Group Portfolio",
 1778:           title=>"Display group portfolio"});
 1779:     my $output = &Apache::lonhtmlcommon::breadcrumbs(
 1780:                          &mt('[_1] portfolio files - [_2]',$gpterm,$grp_desc));
 1781:     return $output;
 1782: }
 1783: 
 1784: 
 1785: sub handler {
 1786:     # this handles file management
 1787:     my $r = shift;
 1788:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 1789:          ['selectfile','currentpath','meta','lockinfo','currentfile','action',
 1790: 	  'fieldname','mode','rename','continue','group','access','setnum',
 1791:           'cnum','cdom','type','setroles','showversions','ref']);
 1792:     my ($uname,$udom,$portfolio_root,$url,$caller,$title,$group,$grp_desc);
 1793:     if ($r->uri =~ m|^(/adm/)([^/]+)|) {
 1794:         $url = $1.$2;
 1795:         $caller = $2;
 1796:     }
 1797:     my ($can_modify,$can_delete,$can_upload,$can_setacl);
 1798:     if ($caller eq 'coursegrp_portfolio') {
 1799:     #  Needs to be in a course
 1800:         if (! ($env{'request.course.fn'})) {
 1801:         # Not in a course
 1802:             $env{'user.error.msg'}=
 1803:      "/adm/coursegrp_portfolio:rgf:0:0:Cannot view group portfolio";
 1804:             return HTTP_NOT_ACCEPTABLE;
 1805:         }
 1806:         my $earlyout = 0;
 1807:         my $view_permission = 
 1808:            &Apache::lonnet::allowed('vcg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
 1809:         $env{'form.group'} =~ s/\W//g;
 1810: 	$group = $env{'form.group'};
 1811:         if ($group) {
 1812:             ($uname,$udom) = &get_name_dom();
 1813:             my %curr_groups = &Apache::longroup::coursegroups($udom,$uname,
 1814: 							       $group); 
 1815:             if (%curr_groups) {
 1816:                 my %grp_content = &Apache::longroup::get_group_settings(
 1817:                                                          $curr_groups{$group});
 1818:                 $grp_desc = &unescape($grp_content{'description'});
 1819:                 if (($view_permission) || (&Apache::lonnet::allowed('rgf',
 1820:                                       $env{'request.course.id'}.'/'.$group))) {
 1821:                     $portfolio_root = &get_portfolio_root();
 1822:                 } else {
 1823:                     $r->print('You do not have the privileges required to access the shared files space for this group.');
 1824:                     $earlyout = 1;
 1825:                 }
 1826:             } else {
 1827:                 $r->print('Not a valid group for this course');
 1828:                 $earlyout = 1;
 1829:             }
 1830:             $title = &mt('Group files').' for '.$group; 
 1831:         } else {
 1832:             $r->print('Invalid group');
 1833:             $earlyout = 1;
 1834:         }
 1835:         if ($earlyout) { return OK; }
 1836:         if (&Apache::lonnet::allowed('mdg',$env{'request.course.id'})) {
 1837:             $can_modify = 1;
 1838:             $can_delete = 1;
 1839:             $can_upload = 1;
 1840:             $can_setacl = 1;
 1841:         } else {
 1842:             if (&Apache::lonnet::allowed('agf',$env{'request.course.id'}.'/'.$group)) {
 1843:                 $can_setacl = 1;
 1844:             }
 1845:             if (&Apache::lonnet::allowed('ugf',$env{'request.course.id'}.'/'.$group)) {
 1846:                 $can_upload = 1;
 1847:             }
 1848:             if (&Apache::lonnet::allowed('mgf',$env{'request.course.id'}.'/'.$group)) {
 1849:                 $can_modify = 1;
 1850:             }
 1851:             if (&Apache::lonnet::allowed('dgf',$env{'request.course.id'}.'/'.$group)) {
 1852:                 $can_delete = 1;
 1853:             }
 1854:         }
 1855:     } else {
 1856:         ($uname,$udom) = &get_name_dom();
 1857:         $portfolio_root = &get_portfolio_root();
 1858:         $title = &mt('Portfolio Manager');
 1859:         $can_modify = 1;
 1860:         $can_delete = 1;
 1861:         $can_upload = 1;
 1862:         $can_setacl = 1;
 1863:     }
 1864: 
 1865:     my $port_path = &get_port_path();
 1866:     &Apache::loncommon::no_cache($r);
 1867:     &Apache::loncommon::content_type($r,'text/html');
 1868:     $r->send_http_header;
 1869:     # Give the LON-CAPA page header
 1870:     if ($env{"form.mode"} eq 'selectfile'){
 1871:         $r->print(&Apache::loncommon::start_page($title,undef,
 1872: 						 {'only_body' => 1}));
 1873:     } elsif ($env{'form.action'} eq 'rolepicker') {
 1874:         $r->print(&Apache::loncommon::start_page('New role-based condition',undef,
 1875:                                                  {'no_nav_bar'  => 1, }));
 1876:     } else {
 1877:         $r->print(&Apache::loncommon::start_page($title));
 1878:     }
 1879:     $r->rflush();
 1880: 	if (($env{'form.storeupl'}) & (!$env{'form.uploaddoc.filename'})){
 1881:    	    $r->print('<span class="LC_error">'.
 1882: 		      'No file was selected to upload.'.
 1883: 		      'To upload a file, click <strong>Browse...</strong>'.
 1884: 		      ', select a file, then click <strong>Upload</strong>.'.
 1885: 		      '</span>');
 1886: 	}
 1887:     if ($env{'form.meta'}) {
 1888:         &open_form($r,$url);
 1889: #        $r->print(&edit_meta_data($r, $env{'form.currentpath'}.$env{'form.selectfile'}));
 1890:         $r->print('Edit the meta data<br />');
 1891:         &close_form($r,$url);
 1892:     }
 1893:     if ($env{'form.store'}) {
 1894:     }
 1895: 
 1896:     if ($env{'form.uploaddoc.filename'}) {
 1897:         if ($can_upload) {
 1898: 	    &upload($r,$url,$group);
 1899:         } else {
 1900:             &missing_priv($r,$url,'upload');
 1901:         }
 1902:     } elsif ($env{'form.action'} eq 'delete' && $env{'form.confirmed'}) {
 1903:         if ($can_delete) {
 1904: 	    &delete_confirmed($r,$url);
 1905:         } else {
 1906:             &missing_priv($r,$url,'delete');
 1907:         }
 1908:     } elsif ($env{'form.action'} eq 'delete') {
 1909:         if ($can_delete) {
 1910: 	    &delete($r,$url);
 1911:         } else {
 1912:             &missing_priv($r,$url,'delete');
 1913:         }
 1914:     } elsif ($env{'form.action'} eq 'deletedir' && $env{'form.confirmed'}) {
 1915:         if ($can_delete) {
 1916: 	    &delete_dir_confirmed($r,$url);
 1917:         } else {
 1918:             &missing_priv($r,$url,'delete');
 1919:         }
 1920:     } elsif ($env{'form.action'} eq 'deletedir') {
 1921:         if ($can_delete) {
 1922: 	    &delete_dir($r,$url);
 1923:         } else {
 1924:             &missing_priv($r,$url,'delete');
 1925:         }
 1926:     } elsif ($env{'form.action'} eq 'rename' && $env{'form.confirmed'}) {
 1927:         if ($can_modify) {
 1928: 	    &rename_confirmed($r,$url);
 1929:         } else {
 1930:             &missing_priv($r,$url,'rename');
 1931:         }
 1932:     } elsif ($env{'form.rename'}) {
 1933:         $env{'form.selectfile'} = $env{'form.rename'};
 1934:         $env{'form.action'} = 'rename';
 1935:         if ($can_modify) {
 1936: 	    &rename($r,$url);
 1937:         } else {
 1938:             &missing_priv($r,$url,'rename');
 1939:         }
 1940:     } elsif ($env{'form.access'}) {
 1941:         $env{'form.selectfile'} = $env{'form.access'};
 1942:         $env{'form.action'} = 'chgaccess';
 1943:         &display_access($r,$url,$group,$can_setacl,$port_path);
 1944:     } elsif ($env{'form.action'} eq 'chgaccess') {
 1945:         if ($can_setacl) {
 1946:             &update_access($r,$url,$group,$port_path);
 1947:         } else {
 1948:             &missing_priv($r,$url,'setacl');
 1949:         }
 1950:     } elsif ($env{'form.action'} eq 'rolepicker') {
 1951:         if ($can_setacl) { 
 1952:             &role_options_window($r);
 1953:         } else {
 1954:             &missing_priv($r,$url,'setacl');
 1955:         }
 1956:     } elsif ($env{'form.createdir'}) {
 1957:         if ($can_upload) {
 1958: 	    &createdir($r,$url);
 1959:         } else {
 1960:             &missing_priv($r,$url,'upload');
 1961:         }
 1962:     } elsif ($env{'form.lockinfo'}) {
 1963:         &lock_info($r,$url,$group);
 1964:     } else {
 1965: 	my $current_path='/';
 1966: 	if ($env{'form.currentpath'}) {
 1967: 	    $current_path = $env{'form.currentpath'};
 1968: 	}
 1969:         if ($caller eq 'coursegrp_portfolio') {
 1970:             &Apache::lonhtmlcommon::clear_breadcrumbs();
 1971:             $r->print(&coursegrp_portfolio_header($udom,$uname,$grp_desc));
 1972:         }
 1973:         my @dir_list=&get_dir_list($portfolio_root);
 1974: 	if ($dir_list[0] eq 'no_such_dir'){
 1975: 	    # two main reasons for this:
 1976:             #    1) never been here, so directory structure not created
 1977: 	    #    2) back-button navigation after deleting a directory
 1978: 	    if ($current_path eq '/'){
 1979: 	        &Apache::lonnet::mkdiruserfile($uname,$udom,
 1980: 					       &get_port_path());
 1981: 	    } else {
 1982:                 # some directory that snuck in get rid of the directory
 1983:                 # from the recent pulldown, just in case
 1984: 		&Apache::lonhtmlcommon::remove_recent('portfolio',
 1985: 						      [$current_path]);
 1986: 		$current_path = '/'; # force it back to the root        
 1987: 	    }
 1988: 	    # now grab the directory list again, for the first time
 1989: 	    @dir_list=&Apache::lonnet::dirlist($current_path,
 1990: 					    $udom,$uname,$portfolio_root);
 1991:         }
 1992: 	# need to know if directory is empty so it can be removed if desired
 1993: 	my $is_empty=(@dir_list == 2);
 1994: 	&display_common($r,$url,$current_path,$is_empty,\@dir_list,
 1995: 			$can_upload);
 1996:         &display_directory($r,$url,$current_path,$is_empty,\@dir_list,$group,
 1997:                            $can_upload,$can_modify,$can_delete,$can_setacl);
 1998: 	$r->print(&Apache::loncommon::end_page());
 1999:     }
 2000:     return OK;
 2001: }
 2002: 
 2003: 1;
 2004: __END__

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