File:  [LON-CAPA] / loncom / interface / portfolio.pm
Revision 1.158: download - view: text, annotated - select for diffs
Mon Aug 14 21:35:35 2006 UTC (17 years, 9 months ago) by albertel
Branches: MAIN
CVS tags: HEAD
- reversing 1.157

    1: # The LearningOnline Network
    2: # portfolio browser
    3: #
    4: # $Id: portfolio.pm,v 1.158 2006/08/14 21:35:35 albertel 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, $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: 
  171:     my $fullpath =  &prepend_group($current_path.$filename);
  172:     $r->print('<tr class="'.$css_class.'">');
  173:     $r->print($line); # contains first two cells of table
  174:     my $lock_info;
  175:     if ($version_flag) { # versioned can't be versioned, so TRUE when root file
  176:         $r->print('<td><img alt="" src="'.&Apache::loncommon::icon($filename).'" /></td>');
  177:         $r->print('<td>'.$version_flag.'</td>');
  178:     } else { # this is a graded or handed back file
  179:         my ($user,$domain) = &get_name_dom();
  180:         my $permissions_hash = &Apache::lonnet::get_portfile_permissions($domain,$user);
  181:         if (defined($$permissions_hash{$fullpath})) {
  182:             foreach my $array_item (@{$$permissions_hash{$fullpath}}) {
  183:                 if (ref($array_item) eq 'ARRAY') {
  184:                     if ($$array_item[-1] eq 'handback') {
  185:                         $lock_info = 'Handback';
  186:                     } elsif ($$array_item[-1] eq 'graded') {
  187:                         $lock_info = 'Graded';
  188:                     }
  189:                  }
  190:             }
  191:         }
  192: 	if ($lock_info) {
  193: 	    my %anchor_fields = ('lockinfo' => $fullpath);
  194: 	    $lock_info = &make_anchor(undef,\%anchor_fields,$lock_info);
  195: 	}
  196: 	$r->print('<td colspan="2">'.$lock_info.'</td>');
  197:     }
  198:     # $r->print('<td>'.$$version_flag{$filename}.'</td><td>');
  199:     $r->print('<td>'.&make_anchor($href_location.$filename,undef,$filename).'</td>'); 
  200:     $r->print('<td>'.$size.'</td>');
  201:     $r->print('<td>'.&Apache::lonlocal::locallocaltime($mtime).'</td>');
  202:     if ($select_mode ne 'true') {
  203: 	$r->print('<td><span style="white-space: nowrap">'.
  204: 		  &mt($curr_access).'&nbsp;&nbsp;&nbsp;');
  205:         my %anchor_fields = (
  206:             'access' => $filename,
  207:             'currentpath' => $current_path
  208:         );
  209: 	$r->print(&make_anchor($url, \%anchor_fields, $access_admin_text).'</span></td>');
  210:     }
  211:     $r->print('</tr>'.$/);
  212: }
  213: 
  214: sub display_directory {
  215:     my ($r,$url,$current_path,$is_empty,$dir_list,$group,$can_upload,
  216:         $can_modify,$can_delete,$can_setacl)=@_;
  217:     my $iconpath= $r->dir_config('lonIconsURL') . "/";
  218:     my $display_out;
  219:     my $select_mode;
  220:     my $checked_files;
  221:     my $port_path = &get_port_path();
  222:     my ($uname,$udom) = &get_name_dom();
  223:     my $access_admin_text = &mt('View Status');
  224:     if ($can_setacl) {
  225:         $access_admin_text = &mt('View/Change Status');
  226:     }
  227: 
  228:     my $current_permissions = &Apache::lonnet::get_portfile_permissions($udom,
  229:                                                                         $uname);
  230:     my %locked_files = &Apache::lonnet::get_marked_as_readonly_hash(
  231:                                                   $current_permissions,$group);
  232:     my %access_controls = &Apache::lonnet::get_access_controls($current_permissions,$group);
  233:     my $now = time;
  234:     if ($env{"form.mode"} eq 'selectfile'){
  235: 	&select_files($r);
  236: 	$checked_files =&Apache::lonnet::files_in_path($uname,$env{'form.currentpath'});
  237: 	$select_mode = 'true';
  238:     } 
  239:     if ($is_empty && ($current_path ne '/') && $can_delete) {
  240:         $display_out = '<form method="post" action="'.$url.'">'.
  241: 	    &group_form_data().
  242:         '<input type="hidden" name="action" value="deletedir" />'.
  243:         '<input type="submit" name="deletedir" value="'.&mt("Delete Directory").'" />'.
  244:         '<input type="hidden" name="selectfile" value="" />'.
  245:         '<input type="hidden" name="currentpath" value="'.$current_path.'" />'.
  246:         '</form>';
  247:         
  248:         $r->print($display_out);
  249: 	return;
  250:     }
  251:     if ($select_mode eq 'true') {
  252:         $r->print('<form method="post" name="checkselect" action="'.$url.'">');
  253:         $r->print('<table id="LC_browser">'.
  254:             '<tr><th>Select</th><th>&nbsp;</th><th>&nbsp;</th><th>Name</th><th>Size</th><th>Last Modified</th></tr>');
  255:     } else {
  256:         $r->print('<form method="post" action="'.$url.'">');
  257:         $r->print('<table id="LC_browser">'.
  258:             '<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>');
  259:     }
  260:     $r->print("\n".&group_form_data()."\n");
  261: 
  262:     my $href_location="/uploaded/$udom/$uname/$port_path".$current_path;
  263:     my $href_edit_location="/editupload/$udom/$uname/$port_path".$current_path;
  264:     my @dir_lines;
  265:     my %versioned;
  266:     foreach my $dir_line (sort 
  267: 		      { 
  268: 			  my ($afile)=split('&',$a,2);
  269: 			  my ($bfile)=split('&',$b,2);
  270: 			  return (lc($afile) cmp lc($bfile));
  271: 		      } (@$dir_list)) {
  272:     	#$strip holds directory/file name
  273:     	#$dom 
  274:     	my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef)=split(/\&/,$dir_line,16); 
  275:     	$filename =~ s/\s+$//;
  276:     	my ($fname,$version,$extension) = &Apache::grades::file_name_version_ext($filename);
  277:     	if ($version) {
  278: 	    my $fullpath = &prepend_group($current_path.$fname.'.'.$extension);
  279:     	    push(@{ $versioned{$fullpath} },
  280: 		 [$filename,$dom,$testdir,$size,$mtime,$obs,]);
  281:     	} else {
  282:     	    push(@dir_lines, [$filename,$dom,$testdir,$size,$mtime,$obs]);
  283:     	}
  284:     }
  285:     foreach my $dir_line (@dir_lines) {
  286:         my ($filename,$dom,$testdir,$size,$mtime,$obs) = @$dir_line;
  287:         my ($fname,$version,$extension) = &Apache::grades::file_name_version_ext($filename);
  288:     	if (($filename ne '.') && ($filename ne '..') && ($filename !~ /\.meta$/ ) && ($filename !~ /(.*)\.(\d+)\.([^\.]*)$/)) {
  289:     	    my $version_flag;
  290:     	    my $show_versions;
  291: 	    my $fullpath =  &prepend_group($current_path.$filename);
  292:     	    if ($env{'form.showversions'} eq $filename) {
  293:     	        $show_versions = 'true';
  294:     	    }
  295:     	    if (exists($versioned{$fullpath})) {
  296:     	        my %anchor_fields = (
  297:     	            'selectfile' => $fullpath,
  298:     	            'continue' => 'false',
  299:     	            'currentpath' => $current_path,
  300:     	        );
  301:     	        if ($show_versions) {
  302:                     $version_flag = &make_anchor('portfolio',\%anchor_fields,
  303:                         '<img class="LC_icon" alt="'.&mt('opened folder').'" src="'.$iconpath.'folder_pointer_opened.gif" />');
  304:     	        } else {
  305:     	            $anchor_fields{'showversions'} = $filename;
  306:                     $version_flag = &make_anchor('portfolio',\%anchor_fields,
  307:                         '<img class="LC_icon" alt="'.&mt('closed folder').'" src="'.$iconpath.'folder_pointer_closed.gif" />');
  308:                 }
  309:     	    } else {
  310:     	        $version_flag = '&nbsp;';
  311:     	    }
  312:             if ($dirptr&$testdir) {
  313: 		my $colspan='colspan="2"';
  314:                 if ($select_mode eq 'true'){
  315: 		    undef($colspan);
  316:                 }
  317: 		$r->print('<tr class="LC_browser_folder"><td '.$colspan.'><img alt="'.&mt('closed folder').'" src="'.$iconpath.'folder_closed.gif" /></td>');
  318:                 $r->print('<td>Go to ...</td>');
  319:                 my %anchor_fields = (
  320:                     'selectfile'    => $filename.'/',
  321:                     'currentpath'   => $current_path.$filename.'/',
  322:                     'mode'          => $env{"form.mode"},
  323:                     'fieldname'     => $env{"form.fieldname"},
  324:                     'continue'      => $env{"form.continue"}
  325:                 );  
  326:                 $r->print('<td>'.$version_flag.'</td><td>'.&make_anchor($url,\%anchor_fields,$filename.'/').'</td>'); 
  327:                 $r->print('</tr>'); 
  328:             } else {
  329: 		my $css_class = 'LC_browser_file';
  330: 		my $line;
  331:                 if ($select_mode eq 'true') {
  332:                     $line='<td><input type="checkbox" name="checkfile" value="'.$filename.'"';
  333: 		    if ($$checked_files{$filename} eq 'selected') {
  334:                         $line.=" checked ";
  335:                     }
  336: 		    $line.=' /></td>';
  337:                 } else {
  338:                     if (exists $locked_files{$fullpath}) {
  339:                         my %anchor_fields = (
  340:                             'lockinfo' => $fullpath
  341:                         );
  342:                         $line.='<td colspan="2">'.&make_anchor($url,\%anchor_fields,'Locked').'</td>';
  343: 			$css_class= 'LC_browser_file_locked';
  344:                     } else {
  345:                         if (!$can_modify) {
  346:                             $line .= '<td colspan="2">';
  347:                         } else {
  348:                             $line .= '<td>';
  349:                         }
  350:                         if ($can_delete) {
  351:                             $line .= '<input type="checkbox" name="selectfile" value="'.$filename.'" />';
  352:                         }
  353:                         if ($can_modify) {
  354:                             my $cat='<img class="LC_icon" alt="'.&mt('Catalog Information').
  355:                             '" src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/catalog.gif').'" />';
  356:                             my %anchor_fields = (
  357:                                 'rename' => $filename,
  358:                                 currentpath => $current_path
  359:                             );
  360:                             $line .= &make_anchor($url,\%anchor_fields,'Rename');
  361:                             $line .= '</td><td>'.&make_anchor($href_edit_location.$filename.'.meta',undef,$cat);
  362:                             # '<a href="'.$href_edit_location.$filename.'.meta">'.$cat.'</a>';
  363:                         }
  364:                         $line .= '</td>';
  365:                     }
  366:                 }
  367: 		my $curr_access;
  368: 		if ($select_mode ne 'true') {
  369: 		    my $pub_access = 0;
  370: 		    my $guest_access = 0;
  371: 		    my $cond_access = 0;
  372: 		    foreach my $key (sort(keys(%{$access_controls{$fullpath}}))) {
  373: 			my ($num,$scope,$end,$start) = &unpack_acc_key($key);
  374: 			if (($now > $start) && (!$end || $end > $now)) {
  375: 			    if ($scope eq 'public')  {
  376: 				$pub_access = 1;
  377: 			    } elsif ($scope eq 'guest') {
  378: 				$guest_access = 1;
  379: 			    } else {
  380: 				$cond_access = 1;
  381: 			    }
  382: 			}
  383: 		    }
  384: 		    if (!$pub_access && !$guest_access && !$cond_access) {
  385: 			$curr_access = &mt('Private');
  386: 		    } else {
  387: 			my @allaccesses; 
  388: 			if ($pub_access) {
  389: 			    push(@allaccesses,&mt('Public'));
  390: 			}
  391: 			if ($guest_access) {
  392: 			    push(@allaccesses,&mt('Passphrase-protected'));
  393: 			}
  394: 			if ($cond_access) {
  395: 			    push(@allaccesses,&mt('Conditional'));
  396: 			}
  397: 			$curr_access = join('+ ',@allaccesses);
  398: 		    }
  399: 		}
  400:                 &display_directory_line($r,$select_mode, $filename, $mtime, $size, $css_class, $line, 
  401:                                         \%access_controls, $curr_access,$now, $version_flag, $href_location, 
  402:                                         $url, $current_path, $access_admin_text);
  403: 		if ($show_versions) {
  404: 		    foreach my $dir_line (@{ $versioned{$fullpath} }) {
  405: 		        my ($v_filename,$dom,$testdir,$size,$mtime,$obs) =
  406: 			    @$dir_line;
  407:                         $line = '<td colspan="2">&nbsp;</td>';
  408: 			&display_directory_line($r,$select_mode, $v_filename, $mtime, $size, 
  409: 						$css_class, $line, \%access_controls, $curr_access, $now,
  410: 						undef, $href_location, $url, $current_path, $access_admin_text, 1);
  411: 		    }
  412: 		}
  413:             }
  414:         }
  415:     }
  416:     if ($select_mode eq 'true') {
  417:         $r->print('</table>
  418:             <input type="hidden" name="continue" value="true" />
  419:             <input type="hidden" name="fieldname" value="'.$env{'form.fieldname'}.'" />
  420:             <input type="hidden" name="mode" value="selectfile" />
  421:             <input type="submit" name="submit" value="Select checked files, and continue selecting." /><br />
  422:             <input type="button" name="doit" onClick= "finishSelect();" value="Select checked files, and close window" />
  423:             <input type="hidden" name="currentpath" value="'.$current_path.'" />
  424:         </form>');        
  425:     } else {
  426:         $r->print('</table>');
  427:         if ($can_delete) {
  428:             $r->print('
  429:         <input type="submit" name="doit" value="Delete Checked Files" />
  430:         <input type="hidden" name="action" value="delete" />
  431:         <input type="hidden" name="currentpath" value="'.$current_path.'" />
  432:         </form>'
  433:             );
  434:         }
  435:     }
  436: }
  437: 
  438: sub open_form {
  439:     my ($r,$url)=@_;
  440:     my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
  441:     $r->print('<form name="portform" method="post" action="'.$url.'">');
  442:     $r->print('<input type="hidden" name="action" value="'.
  443: 	      $env{'form.action'}.'" />');
  444:     $r->print('<input type="hidden" name="confirmed" value="1" />');
  445:     foreach (@files) {
  446:         $r->print('<input type="hidden" name="selectfile" value="'.
  447: 	      $_.'" />');
  448:     }
  449:     $r->print('<input type="hidden" name="currentpath" value="'.
  450: 	      $env{'form.currentpath'}.'" />');
  451: }
  452: 
  453: sub close_form {
  454:     my ($r,$url,$button_text)=@_;
  455:     if (!defined($button_text)) {
  456:         $button_text = {
  457:                          'continue' => &mt('Continue'),
  458:                          'cancel'   => &mt('Cancel'),
  459:                        };
  460:     }
  461:     $r->print('<p><input type="submit" value="'.$button_text->{'continue'}.'" />');
  462:     $r->print(&group_form_data().'</p></form>');
  463:     $r->print('<form action="'.$url.'" method="post">
  464:                <p>
  465:               <input type="hidden" name="currentpath" value="'.
  466: 	      $env{'form.currentpath'}.'" />'.
  467: 	      &group_form_data());
  468:     $r->print("\n".'   <input type="submit" value="'.$button_text->{'cancel'}.'" />
  469:                </p></form>'); 
  470: }
  471: 
  472: sub display_file {
  473:     my ($path,$filename)=@_;
  474:     my $display_file_text;
  475:     my $file_start='<span class="LC_filename">';
  476:     my $file_end='</span>';
  477:     if (!defined($path)) { $path=$env{'form.currentpath'}; }
  478:     if (!defined($filename)) { 
  479:         $filename=$env{'form.selectfile'};
  480:         $display_file_text = $file_start.$path.$filename.$file_end;
  481:     } elsif (ref($filename) eq "ARRAY") {
  482:         foreach my $file (@$filename) {
  483:             $display_file_text .= $file_start.$path.$file.$file_end.'<br />';
  484:         }
  485:     } elsif (ref($filename) eq "SCALAR") {
  486:         $display_file_text = $file_start.$path.$$filename.$file_end;
  487:     } else {
  488: 	$display_file_text = $file_start.$path.$filename.$file_end;
  489:     }
  490:     return $display_file_text;
  491: }
  492: 
  493: sub done {
  494:     my ($message,$url)=@_;
  495:     unless (defined $message) {
  496:         $message='Done';
  497:     }
  498:     my %anchor_fields = (
  499:         'currentpath' => $env{'form.currentpath'},
  500:         'fieldname' => $env{'form.fieldname'},
  501:         'mode'      => $env{'form.mode'}
  502:     );
  503:     my $result = '<h3>'.&make_anchor($url,\%anchor_fields,&mt($message)).'</h3>';
  504:     return $result;
  505: }
  506: 
  507: sub delete {
  508:     my ($r,$url)=@_;
  509:     my @check;
  510:     my $file_name = $env{'form.currentpath'}.$env{'form.selectfile'};
  511:     $file_name = &prepend_group($file_name);
  512:     my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
  513:     my ($uname,$udom) = &get_name_dom();
  514:     if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
  515:         $r->print ("The file is locked and cannot be deleted.<br />");
  516:         $r->print(&done('Back',$url));
  517:     } else {
  518:         if (scalar(@files)) {
  519:             &open_form($r,$url);
  520:             $r->print('<p>'.&mt('Delete').' '.&display_file(undef,\@files).'?</p>');
  521:             &close_form($r,$url);
  522:         } else {
  523:             $r->print("No file was checked to delete.<br />");
  524:             $r->print(&done(undef,$url));
  525:         }
  526:     }
  527: } 
  528: 
  529: sub delete_confirmed {
  530:     my ($r,$url)=@_;
  531:     my @files=&Apache::loncommon::get_env_multiple('form.selectfile');
  532:     my $result;
  533:     my ($uname,$udom) = &get_name_dom();
  534:     my $port_path = &get_port_path();
  535:     foreach my $delete_file (@files) {
  536:         $result=&Apache::lonnet::removeuserfile($uname,$udom,$port_path.
  537: 					       $env{'form.currentpath'}.
  538: 					       $delete_file);
  539:         if ($result ne 'ok') {
  540: 	$r->print('<span class="LC_error"> An error occured ('.$result.
  541: 		  ') while trying to delete '.&display_file(undef, $delete_file).'</span><br />');
  542:         }
  543:     }
  544:     $r->print(&done(undef,$url));
  545: }
  546: 
  547: sub delete_dir {
  548:     my ($r,$url)=@_;
  549:     &open_form($r,$url);
  550:     $r->print('<p>'.&mt('Delete').' '.&display_file().'?</p>');
  551:     &close_form($r,$url);
  552: } 
  553: 
  554: sub delete_dir_confirmed {
  555:     my ($r,$url)=@_;
  556:     my $directory_name = $env{'form.currentpath'};
  557:     $directory_name =~ s|/$||; # remove any trailing slash
  558:     my ($uname,$udom) = &get_name_dom();
  559:     my $namespace = &get_namespace();
  560:     my $port_path = &get_port_path();
  561:     my $result=&Apache::lonnet::removeuserfile($uname,$udom,$port_path.
  562: 					       $directory_name);
  563: 					       
  564:     if ($result ne 'ok') {
  565: 	$r->print('<span class="LC_error"> An error occured (dir) ('.$result.
  566: 		  ') while trying to delete '.$directory_name.'</span><br />');
  567:     } else {
  568:         # now remove from recent
  569: #        $r->print('<br /> removing '.$directory_name.'<br /');
  570:         &Apache::lonhtmlcommon::remove_recent($namespace,[$directory_name.'/']);
  571:         my @dirs = split m!/!, $directory_name;
  572:         
  573: #        $directory_name =~ m/^(\/*\/)(\/*.)$/;
  574:         $directory_name='/';
  575:         for (my $i=1; $i < (@dirs - 1); $i ++){
  576:             $directory_name .= $dirs[$i].'/';
  577:         }
  578:         $env{'form.currentpath'} = $directory_name;
  579:     }
  580:     $r->print(&done(undef,$url));
  581: }
  582: 
  583: sub rename {
  584:     my ($r,$url)=@_;
  585:     my $file_name = $env{'form.currentpath'}.$env{'form.rename'};
  586:     my ($uname,$udom) = &get_name_dom();
  587:     $file_name = &prepend_group($file_name);
  588:     if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
  589:         $r->print ("The file is locked and cannot be renamed.<br />");
  590:         $r->print(&done(undef,$url));
  591:     } else {
  592:         &open_form($r,$url);
  593:         $r->print('<p>'.&mt('Rename').' '.&display_file().' to 
  594:                    <input name="filenewname" type="input" size="50" />?</p>');
  595:         &close_form($r,$url);
  596:     }
  597: }
  598: 
  599: sub rename_confirmed {
  600:     my ($r,$url)=@_;
  601:     my $filenewname=&Apache::lonnet::clean_filename($env{'form.filenewname'});
  602:     my ($uname,$udom) = &get_name_dom();
  603:     my $port_path = &get_port_path();
  604:     if ($filenewname eq '') {
  605: 	$r->print('<span class="LC_error">'.
  606: 		  &mt("Error: no valid filename was provided to rename to.").
  607: 		  '</span><br />');
  608: 	$r->print(&done(undef,$url));
  609: 	return;
  610:     } 
  611:     my $result=
  612: 	&Apache::lonnet::renameuserfile($uname,$udom,
  613:             $port_path.$env{'form.currentpath'}.$env{'form.selectfile'},
  614:             $port_path.$env{'form.currentpath'}.$filenewname);
  615:     if ($result ne 'ok') {
  616: 	$r->print('<span class="LC_error">'.
  617: 		  &mt('An errror occured ([_1]) while trying to rename [_2]'
  618: 		      .' to [_3]',$result,&display_file(),
  619: 		      &display_file('',$filenewname)).'</span><br />');
  620:     }
  621:     if ($filenewname ne $env{'form.filenewname'}) {
  622:         $r->print(&mt("The new file name was changed from:<br />[_1] to [_2]",
  623: 		      '<strong>'.&display_file('',$env{'form.filenewname'}).'</strong>',
  624: 		      '<strong>'.&display_file('',$filenewname).'</strong>'));
  625:     }
  626:     $r->print(&done(undef,$url));
  627: }
  628: 
  629: sub display_access {
  630:     my ($r,$url,$group,$can_setacl,$port_path) = @_;
  631:     my ($uname,$udom) = &get_name_dom();
  632:     my $file_name = $env{'form.currentpath'}.$env{'form.access'};
  633:     $file_name = &prepend_group($file_name);
  634:     my $current_permissions = &Apache::lonnet::get_portfile_permissions($udom,
  635:                                                                         $uname);
  636:     my %access_controls = &Apache::lonnet::get_access_controls($current_permissions,$group,$file_name);
  637:     my $aclcount = keys(%access_controls);
  638:     my $header = '<h3>'.&mt('Allowing others to retrieve file: [_1]',$port_path.$env{'form.currentpath'}.$env{'form.access'}).'</h3>';
  639:     my $info .= &mt('Access to this file by others can be set to be one or more of the following types: public, passphrase-protected or conditional.');
  640:     $info .= '<br /><ul><li>'.&mt('Public files are available to anyone without the need for login.');
  641:     $info .= '</li><li>'.&mt('Passphrase-protected files do not require log-in, but will require the viewer to enter the passphrase you set.');
  642:     $info .= '</li><li>'.&mt('Conditional files are accessible to logged-in users with accounts in the LON-CAPA network, who satisfy the conditions you set.').'<br />';
  643:     $info .= &mt('The conditions can include affiliation with a particular course or group, or a user account in a specific domain.').'<br />';
  644:     $info .= &mt('Alternatively access can be granted to people with specific LON-CAPA usernames and domains.').'</li></ul>';
  645:     if ($group eq '') {
  646:         $info .= (&mt("Direct others to the 'Display file listing' link (shown when there are viewable files) on your personal information page:<br /><a href='/adm/$udom/$uname/aboutme'>http://$ENV{'SERVER_NAME'}/adm/$udom/$uname/aboutme</a>"));
  647:     }
  648:     
  649:     if ($can_setacl) {
  650:         &open_form($r,$url);
  651:         $r->print($header.$info);
  652:         &access_setting_table($r,$access_controls{$file_name});
  653:         my $button_text = {
  654:                         'continue' => &mt('Proceed'),
  655:                         'cancel' => &mt('Back to directory listing'),
  656:                       };
  657:         &close_form($r,$url,$button_text);
  658:     } else {
  659:         $r->print($header);
  660:         if ($aclcount) {  
  661:             $r->print($info);
  662:         }
  663:         &view_access_settings($r,$url,$access_controls{$file_name},$aclcount);
  664:     }
  665: }
  666: 
  667: sub view_access_settings {
  668:     my ($r,$url,$access_controls,$aclcount) = @_;
  669:     my ($showstart,$showend);
  670:     my %todisplay;
  671:     foreach my $key (sort(keys(%{$access_controls}))) {
  672:         my ($num,$scope,$end,$start) = &unpack_acc_key($key);
  673:         $todisplay{$scope}{$key} = $$access_controls{$key};
  674:     }
  675:     if ($aclcount) {
  676:         $r->print(&mt('<h4>Current access controls defined for this file:</h4>'));
  677:         $r->print(&Apache::loncommon::start_data_table());
  678:         $r->print(&Apache::loncommon::start_data_table_header_row());
  679:         $r->print('<th>'.&mt('Access control').'</th><th>'.&mt('Dates available').
  680:                   '</th><th>'.&mt('Additional information').'</th>');
  681:         $r->print(&Apache::loncommon::end_data_table_header_row());
  682:         my $count = 1;
  683:         my $chg = 'none';
  684:         &build_access_summary($r,$count,$chg,%todisplay);
  685:         $r->print(&Apache::loncommon::end_data_table());
  686:     } else {
  687:         $r->print(&mt('No access control settings currently exist for this file.<br />' ));
  688:     }
  689:     my %anchor_fields = (
  690:         'currentpath' => $env{'form.currentpath'}
  691:     );
  692:     $r->print('<br />'.&make_anchor($url, \%anchor_fields, &mt('Return to directory listing')));
  693:     return;
  694: }
  695: 
  696: sub build_access_summary {
  697:     my ($r,$count,$chg,%todisplay) = @_; 
  698:     my ($showstart,$showend);
  699:     my %scope_desc = (
  700:                       public => 'Public',
  701:                       guest => 'Passphrase-protected',
  702:                       domains => 'Conditional: domain-based',
  703:                       users => 'Conditional: user-based',
  704:                       course => 'Conditional: course-based',
  705:                       group => 'Conditional: group-based',
  706:                      );
  707:     my @allscopes = ('public','guest','domains','users','course','group');
  708:     foreach my $scope (@allscopes) {
  709:         if ((!(exists($todisplay{$scope}))) || (ref($todisplay{$scope}) ne 'HASH')) {
  710:             next;
  711:         }
  712:         foreach my $key (sort(keys(%{$todisplay{$scope}}))) {
  713:             if ($count) {
  714:                 $r->print(&Apache::loncommon::start_data_table_row());
  715:             }
  716:             my ($num,$scope,$end,$start) = &unpack_acc_key($key);
  717:             my $content = $todisplay{$scope}{$key};
  718:             if ($chg eq 'delete') {
  719:                 $showstart = &mt('Deleted');
  720:                 $showend = $showstart;
  721:             } else {
  722:                 $showstart = localtime($start);
  723:                 if ($end == 0) {
  724:                     $showend = &mt('No end date');
  725:                 } else {
  726:                     $showend = localtime($end);
  727:                 }
  728:             }
  729:             $r->print('<td>'.&mt($scope_desc{$scope}));
  730:             if (($scope eq 'course') || ($scope eq 'group')) {
  731:                 if ($chg ne 'delete') {
  732:                     my $cid = $content->{'domain'}.'_'.$content->{'number'};
  733:                     my %course_description = &Apache::lonnet::coursedescription($cid);
  734:                     $r->print('<br />('.$course_description{'description'}.')');
  735:                 }
  736:             }
  737:             $r->print('</td><td>'.&mt('Start: ').$showstart.
  738:                   '<br />'.&mt('End: ').$showend.'</td><td>');
  739:             if ($chg ne 'delete') {
  740:                 if ($scope eq 'guest') {
  741:                     $r->print(&mt('Passphrase').': '.$content->{'password'});
  742:                 } elsif ($scope eq 'course' || $scope eq 'group') {
  743:                     $r->print('<table><tr>');
  744:                     $r->print('<th>'.&mt('Roles').'</th><th>'.
  745:                           &mt('Access').'</th><th>'.
  746:                                           &mt('Sections').'</th>');
  747:                     if ($scope eq 'course') {
  748:                         $r->print('<th>'.&mt('Groups').'</th>');
  749:                     } else {
  750:                         $r->print('<th>'.&mt('Teams').'</th>');
  751:                     }
  752:                     $r->print('</tr>');
  753:                     foreach my $id (sort(keys(%{$content->{'roles'}}))) {
  754:                         $r->print('<tr>');
  755:                         foreach my $item ('role','access','section','group') {
  756:                             $r->print('<td>');
  757:                             if ($item eq 'role') {
  758:                                 my $ucscope = $scope;
  759:                                 $ucscope =~ s/^(\w)/uc($1)/e;
  760:                                 my $role_output;
  761:                                 foreach my $role (@{$content->{'roles'}{$id}{$item}}) {
  762:                                     if ($role eq 'all') {
  763:                                         $role_output .= $role.',';
  764:                                     } elsif ($role =~ /^cr/) {
  765:                                         $role_output .= (split('/',$role))[3].',';
  766:                                     } else {
  767:                                         $role_output .= &Apache::lonnet::plaintext($role,$ucscope).',';
  768:                                     }
  769:                                 }
  770:                                 $role_output =~ s/,$//;
  771:                                 $r->print($role_output);
  772:                             } else {
  773:                                 $r->print(join(',',@{$content->{'roles'}{$id}{$item}}));
  774:                             }
  775:                             $r->print('</tr>');
  776:                         }
  777: 			$r->print("</table>");
  778:                     }
  779: 		    $r->print("</tr></table>");
  780:                 } elsif ($scope eq 'domains') {
  781:                     $r->print(&mt('Domains: ').join(',',@{$content->{'dom'}}));
  782:                 } elsif ($scope eq 'users') {
  783:                     my $curr_user_list = &sort_users($content->{'users'});
  784:                     $r->print(&mt('Users: ').$curr_user_list);
  785:                 } else {
  786:                     $r->print('&nbsp;');
  787:                 }
  788:             } else {
  789:                 $r->print('&nbsp;');
  790:             }
  791:             $r->print('</td>');
  792:             $r->print(&Apache::loncommon::end_data_table_row());
  793:             $count ++;
  794:         }
  795:     }
  796: }
  797: 
  798: 
  799: sub update_access {
  800:     my ($r,$url,$group,$port_path) = @_;
  801:     my $totalprocessed = 0;
  802:     my %processing;
  803:     my %title  = (
  804:                          'activate' => 'New control(s) added',
  805:                          'delete'   => 'Existing control(s) deleted',
  806:                          'update'   => 'Existing control(s) modified',
  807:                      );
  808:     my $changes;
  809:     foreach my $chg (sort(keys(%title))) {     
  810:         @{$processing{$chg}} = &Apache::loncommon::get_env_multiple('form.'.$chg);
  811:         $totalprocessed += @{$processing{$chg}};
  812:         foreach my $num (@{$processing{$chg}}) {
  813:             my $scope = $env{'form.scope_'.$num};
  814:             my ($start,$end) = &get_dates_from_form($num);
  815:             my $newkey = $num.':'.$scope.'_'.$end.'_'.$start;
  816:             if ($chg eq 'delete') {
  817:                 $$changes{$chg}{$newkey} = 1;
  818:             } else {
  819:                 $$changes{$chg}{$newkey} = 
  820:                             &build_access_record($num,$scope,$start,$end,$chg);
  821:             }
  822:         }
  823:     }
  824:     my $file_name = $env{'form.currentpath'}.$env{'form.selectfile'};
  825:     $r->print('<h3>'.&mt('Allowing others to retrieve file: [_1]',
  826:               $port_path.$file_name).'</h3>'."\n");
  827:     $file_name = &prepend_group($file_name);
  828:     my ($uname,$udom) = &get_name_dom();
  829:     my ($errors,$outcome,$deloutcome,$new_values,$translation);
  830:     if ($totalprocessed) {
  831:         ($outcome,$deloutcome,$new_values,$translation) =
  832:         &Apache::lonnet::modify_access_controls($file_name,$changes,$udom,
  833:                                                 $uname);
  834:     }
  835:     my $current_permissions = &Apache::lonnet::get_portfile_permissions($udom,
  836:                                                                        $uname);
  837:     my %access_controls = 
  838: 	&Apache::lonnet::get_access_controls($current_permissions,
  839: 					     $group,$file_name);
  840:     if ($totalprocessed) {
  841:         if ($outcome eq 'ok') {
  842:             my $updated_controls = $access_controls{$file_name};
  843:             my ($showstart,$showend);
  844:             $r->print(&Apache::loncommon::start_data_table());
  845:             $r->print(&Apache::loncommon::start_data_table_header_row());
  846:             $r->print('<th>'.&mt('Type of change').'</th><th>'.
  847:                       &mt('Access control').'</th><th>'.&mt('Dates available').
  848:                       '</th><th>'.&mt('Additional information').'</th>');
  849:             $r->print(&Apache::loncommon::end_data_table_header_row());
  850:             foreach my $chg (sort(keys(%processing))) {
  851:                 if (@{$processing{$chg}} > 0) {
  852:                     if ($chg eq 'delete') {
  853:                         if (!($deloutcome eq 'ok')) {
  854:                             $errors .='<span class="LC_error">'.
  855: 				&mt('A problem occurred deleting access controls: [_1]',$deloutcome).
  856: 				'</span>';
  857:                             next;
  858:                         }
  859:                     }
  860:                     my $numchgs = @{$processing{$chg}};
  861:                     $r->print(&Apache::loncommon::start_data_table_row());
  862:                     $r->print('<td rowspan="'.$numchgs.'">'.&mt($title{$chg}).
  863:                               '.</td>');
  864:                     my $count = 0;
  865:                     my %todisplay;
  866:                     foreach my $key (sort(keys(%{$$changes{$chg}}))) {
  867:                         my ($num,$scope,$end,$start) = &unpack_acc_key($key);
  868:                         my $newkey = $key;
  869:                         if ($chg eq 'activate') {
  870:                             $newkey =~ s/^(\d+)/$$translation{$1}/;
  871:                         }
  872:                         $todisplay{$scope}{$newkey} = $$updated_controls{$newkey};
  873:                     }
  874:                     &build_access_summary($r,$count,$chg,%todisplay);  
  875:                 }
  876:             }
  877:             $r->print(&Apache::loncommon::end_data_table());
  878:         } else {
  879:             if ((@{$processing{'activate'}} > 0) || (@{$processing{'update'}} > 0)) {
  880:                 $errors .= '<span class="LC_error">'.
  881: 		    &mt('A problem occurred storing access control settings: [_1]',$outcome).
  882: 		    '</span>';
  883:             }
  884:         }
  885:         if ($errors) { 
  886:             $r->print($errors);
  887:         }
  888:     }
  889:     my $allnew = 0;
  890:     my $totalnew = 0;
  891:     my $status = 'new';
  892:     my ($firstitem,$lastitem);
  893:     foreach my $newitem ('course','group','domains','users') {
  894:         $allnew += $env{'form.new'.$newitem};
  895:     }
  896:     if ($allnew > 0) {
  897:         my $now = time;
  898:         my $then = $now + (60*60*24*180); # six months approx.
  899:         &open_form($r,$url);
  900:         foreach my $newitem ('course','group','domains','users') {
  901:             if ($env{'form.new'.$newitem} > 0) {
  902:                 $r->print('<br />'.&mt('Add new <b>[_1]-based</b> access control for portfolio file: <b>[_2]</b>',$newitem,$env{'form.currentpath'}.$env{'form.selectfile'}).'<br /><br />');
  903:                 $firstitem = $totalnew;
  904:                 $lastitem = $totalnew + $env{'form.new'.$newitem};
  905:                 $totalnew = $lastitem;
  906:                 my @numbers;   
  907:                 for (my $i=$firstitem; $i<$lastitem; $i++) {
  908:                     push (@numbers,$i);
  909:                 }
  910:                 &display_access_row($r,$status,$newitem,\@numbers,
  911:                                     $access_controls{$file_name},$now,$then);
  912:             }
  913:         }
  914:         &close_form($r,$url);
  915:     } else {
  916:         my %anchor_fields = (
  917:             'currentpath' => $env{'form.currentpath'},
  918:             'access' => $env{'form.selectfile'}
  919:         );
  920:         $r->print('<br />'.&make_anchor($url, \%anchor_fields, &mt('Display all access settings for this file')));
  921:         delete $anchor_fields{'access'};
  922:         $r->print('&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'.&make_anchor($url,\%anchor_fields,&mt('Return to directory listing')));
  923:     }
  924:     return;
  925: }
  926: 
  927: sub build_access_record {
  928:     my ($num,$scope,$start,$end,$chg) = @_;
  929:     my $record = {
  930: 	type => $scope,
  931: 	time => {
  932: 	    start => $start,
  933: 	    end   => $end
  934: 	    },
  935: 	    };
  936: 		
  937:     if ($scope eq 'guest') {	
  938:         $record->{'password'} = $env{'form.password'};
  939:     } elsif (($scope eq 'course') || ($scope eq 'group')) {
  940:         $record->{'domain'} = $env{'form.crsdom_'.$num};
  941: 	$record->{'number'} = $env{'form.crsnum_'.$num};
  942:         my @role_ids;
  943:         my @delete_role_ids =
  944:             &Apache::loncommon::get_env_multiple('form.delete_role_'.$num);
  945: 	my @preserves =
  946: 	    &Apache::loncommon::get_env_multiple('form.preserve_role_'.$num);
  947: 	if (@delete_role_ids) {
  948: 	    foreach my $id (@preserves) {
  949: 		if (grep {$_ = $id} (@delete_role_ids)) {
  950: 		    next;
  951: 		}
  952: 		push(@role_ids,$id); 
  953: 	    }
  954: 	} else {
  955: 	    push(@role_ids,@preserves);
  956: 	}
  957: 
  958: 	my $next_id = $env{'form.add_role_'.$num};
  959: 	if ($next_id) {
  960: 	    push(@role_ids,$next_id);
  961: 	}
  962: 
  963:         foreach my $id (@role_ids) {
  964:             my (@roles,@accesses,@sections,@groups);
  965:             if (($id == $next_id) && ($chg eq 'update')) {
  966:                 @roles    = split(/,/,$env{'form.role_'.$num.'_'.$next_id});
  967:                 @accesses = split(/,/,$env{'form.access_'.$num.'_'.$next_id});
  968:                 @sections = split(/,/,$env{'form.section_'.$num.'_'.$next_id});
  969:                 @groups   = split(/,/,$env{'form.group_'.$num.'_'.$next_id});
  970:             } else {
  971:                 @roles = &Apache::loncommon::get_env_multiple('form.role_'.$num.'_'.$id);
  972:                 @accesses = &Apache::loncommon::get_env_multiple('form.access_'.$num.'_'.$id);
  973:                 @sections = &Apache::loncommon::get_env_multiple('form.section_'.$num.'_'.$id);
  974:                 @groups = &Apache::loncommon::get_env_multiple('form.group_'.$num.'_'.$id);
  975:             }
  976: 	    $record->{'roles'}{$id}{'role'}    = \@roles;
  977: 	    $record->{'roles'}{$id}{'access'}  = \@accesses;
  978: 	    $record->{'roles'}{$id}{'section'} = \@sections;
  979: 	    $record->{'roles'}{$id}{'group'}   = \@groups;
  980:         }
  981:     } elsif ($scope eq 'domains') {
  982:         my @doms = &Apache::loncommon::get_env_multiple('form.dom_'.$num);
  983: 	$record->{'dom'} = \@doms;
  984:     } elsif ($scope eq 'users') {
  985:         my $userlist = $env{'form.users_'.$num};
  986:         $userlist =~ s/\s+//sg;
  987: 	my %userhash = map { ($_,1) } (split(/,/,$userlist));
  988:         foreach my $user (keys(%userhash)) {
  989:             my ($uname,$udom) = split(/:/,$user);
  990: 	    push(@{$record->{'users'}}, {
  991: 		'uname' => $uname,
  992: 		'udom'  => $udom
  993: 		});
  994: 	}
  995:     }
  996:     return $record;
  997: }
  998: 
  999: sub get_dates_from_form {
 1000:     my ($id) = @_;
 1001:     my $startdate;
 1002:     my $enddate;
 1003:     $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate_'.$id);
 1004:     $enddate   = &Apache::lonhtmlcommon::get_date_from_form('enddate_'.$id);
 1005:     if ( exists ($env{'form.noend_'.$id}) ) {
 1006:         $enddate = 0;
 1007:     }
 1008:     return ($startdate,$enddate);
 1009: }
 1010: 
 1011: sub sort_users {
 1012:     my ($users) = @_; 
 1013:     my @curr_users = map {
 1014: 	$_->{'uname'}.':'.$_->{'udom'}
 1015:     } (@{$users});
 1016:     my $curr_user_list = join(",\n",sort(@curr_users));
 1017:     return $curr_user_list;
 1018: }
 1019: 
 1020: sub access_setting_table {
 1021:     my ($r,$access_controls) = @_;
 1022:     my ($public,$publictext);
 1023:     $publictext = &mt('Off');
 1024:     my ($guest,$guesttext);
 1025:     $guesttext = &mt('Off');
 1026:     my @courses = ();
 1027:     my @groups = ();
 1028:     my @domains = ();
 1029:     my @users = ();
 1030:     my $now = time;
 1031:     my $then = $now + (60*60*24*180); # six months approx.
 1032:     my ($num,$scope,$publicnum,$guestnum);
 1033:     my (%acl_count,%end,%start);
 1034:     foreach my $key (sort(keys(%{$access_controls}))) {
 1035:         ($num,$scope,$end{$key},$start{$key}) = &unpack_acc_key($key);
 1036:         if ($scope eq 'public') {
 1037:             $public = $key;
 1038:             $publicnum = $num;
 1039:             $publictext = &acl_status($start{$key},$end{$key},$now);
 1040:         } elsif ($scope eq 'guest') {
 1041:             $guest=$key;
 1042:             $guestnum = $num;  
 1043:             $guesttext = &acl_status($start{$key},$end{$key},$now);
 1044:         } elsif ($scope eq 'course') {
 1045:             push(@courses,$key);
 1046:         } elsif ($scope eq 'group') {
 1047:             push(@groups,$key);
 1048:         } elsif ($scope eq 'domains') {
 1049:             push(@domains,$key);
 1050:         } elsif ($scope eq 'users') {
 1051:             push(@users,$key);
 1052:         }
 1053:         $acl_count{$scope} ++;
 1054:     }
 1055:     $r->print('<table border="0"><tr><td valign="top">');
 1056:     $r->print('<h3>'.&mt('Public access:').' '.$publictext.'</h3>');
 1057:     $r->print(&Apache::loncommon::start_data_table());
 1058:     $r->print(&Apache::loncommon::start_data_table_header_row());
 1059:     $r->print('<th>'.&mt('Action').'</th><th>'.&mt('Dates available').'</th>');
 1060:     $r->print(&Apache::loncommon::end_data_table_header_row());
 1061:     $r->print(&Apache::loncommon::start_data_table_row());
 1062:     if ($public) {
 1063:         $r->print('<td>'.&actionbox('old',$publicnum,'public').'</td><td>'.
 1064:                   &dateboxes($publicnum,$start{$public},$end{$public}).'</td>');
 1065:     } else {
 1066:         $r->print('<td>'.&actionbox('new','0','public').'</td><td>'.
 1067:                   &dateboxes('0',$now,$then).'</td>');
 1068:     }
 1069:     $r->print(&Apache::loncommon::end_data_table_row());
 1070:     $r->print(&Apache::loncommon::end_data_table());
 1071:     $r->print('</td><td width="40">&nbsp;</td><td valign="top">');
 1072:     $r->print('<h3>'.&mt('Passphrase-protected access:').' '.$guesttext.'</h3>');
 1073:     $r->print(&Apache::loncommon::start_data_table());
 1074:     $r->print(&Apache::loncommon::start_data_table_header_row());
 1075:     $r->print('<th>'.&mt('Action').'</th><th>'.&mt('Dates available').
 1076:               '</th><th>'. &mt('Passphrase').'</th>');
 1077:     $r->print(&Apache::loncommon::end_data_table_header_row());
 1078:     $r->print(&Apache::loncommon::start_data_table_row());
 1079:     my $passwd;
 1080:     if ($guest) {
 1081:         $passwd = $$access_controls{$guest}{'password'};
 1082:         $r->print('<td>'.&actionbox('old',$guestnum,'guest').'</td><td>'.
 1083:                   &dateboxes($guestnum,$start{$guest},$end{$guest}).'</td>');
 1084:     } else {
 1085:         $r->print('<td>'.&actionbox('new','1','guest').'</td><td>'.
 1086:                   &dateboxes('1',$now,$then).'</td>');
 1087:     }
 1088:     $r->print('<td><input type="text" size="15" name="password" value="'.
 1089:               $passwd.'" /></td>');
 1090:     $r->print(&Apache::loncommon::end_data_table_row());
 1091:     $r->print(&Apache::loncommon::end_data_table());
 1092:     $r->print('</td></tr><tr><td colspan="3">&nbsp;</td></tr><tr><td valign="top">');
 1093:     &access_element($r,'domains',\%acl_count,\@domains,$access_controls,$now,$then);
 1094:     $r->print('</td><td>&nbsp;</td><td valign="top">');
 1095:     &access_element($r,'users',\%acl_count,\@users,$access_controls,$now,$then);
 1096:     $r->print('</td></tr><tr><td colspan="3"></td></tr><tr>');
 1097:     if (@courses > 0 || @groups > 0) {
 1098:         $r->print('<td colspan="3" valign="top">');
 1099:     } else {
 1100:         $r->print('<td valign="top">');
 1101:     }
 1102:     &access_element($r,'course',\%acl_count,\@courses,$access_controls,$now,$then);
 1103:     $r->print('</td>');
 1104:     if (@courses > 0 || @groups > 0) {
 1105:         $r->print('</tr><tr><td colspan="3">&nbsp;</td></tr><tr><td colspan="3" valign="top">');
 1106:     } else {
 1107:         $r->print('<td>&nbsp;</td><td valign="top">');
 1108:     }
 1109:     &access_element($r,'group',\%acl_count,\@groups,$access_controls,$now,$then);
 1110:     $r->print('</td></tr></table>');
 1111: }
 1112: 
 1113: sub acl_status {
 1114:     my ($start,$end,$now) = @_;
 1115:     if ($start > $now) {
 1116:         return &mt('Inactive');
 1117:     }
 1118:     if ($end && $end<$now) {
 1119:         return &mt('Inactive');
 1120:     }
 1121:     return &mt('Active');
 1122: }
 1123: 
 1124: sub access_element {
 1125:     my ($r,$type,$acl_count,$items,$access_controls,$now,$then) = @_;
 1126:     my $title = $type;
 1127:     $title =~ s/s$//;
 1128:     $title =~ s/^(\w)/uc($1)/e;
 1129:     $r->print('<h3>'.&mt('[_1]-based conditional access: ',$title));
 1130:     if ($$acl_count{$type}) {
 1131:         $r->print($$acl_count{$type}.' ');
 1132:         if ($$acl_count{$type} > 1) {
 1133:             $r->print(&mt('conditions'));
 1134:         } else {
 1135:             $r->print(&mt('condition'));
 1136:         }
 1137:     } else {
 1138:         $r->print(&mt('Off'));
 1139:     }
 1140:     $r->print('</h3>');
 1141:     &display_access_row($r,'old',$type,$items,$access_controls,$now,$then);
 1142:     return;
 1143: }
 1144: 
 1145: sub display_access_row {
 1146:     my ($r,$status,$type,$items,$access_controls,$now,$then) = @_;
 1147:     if (@{$items} > 0) {
 1148:         my @all_doms;
 1149:         my $colspan = 3;
 1150:         my $uctype = $type;
 1151:         $uctype =~ s/^(\w)/uc($1)/e;
 1152:         $r->print(&Apache::loncommon::start_data_table());
 1153:         $r->print(&Apache::loncommon::start_data_table_header_row());
 1154:         $r->print('<th>'.&mt('Action?').'</th><th>'.&mt($uctype).'</th><th>'.
 1155:               &mt('Dates available').'</th>');
 1156:         if (($type eq 'course') || ($type eq 'group')) {
 1157:             $r->print('<th>'.&mt('Allowed [_1] member affiliations',$type).
 1158:                       '</th>');
 1159:             $colspan ++;
 1160:         } elsif ($type eq 'domains') {
 1161:             @all_doms = &Apache::loncommon::get_domains();
 1162:         }
 1163:         $r->print(&Apache::loncommon::end_data_table_header_row());
 1164:         foreach my $key (@{$items}) {
 1165: 	    $r->print(&Apache::loncommon::start_data_table_row());
 1166:             if (($type eq 'course') || ($type eq 'group')) {
 1167:                 &course_row($r,$status,$type,$key,$access_controls,$now,$then);
 1168:             } elsif ($type eq 'domains') {
 1169:                 &domains_row($r,$status,$key,\@all_doms,$access_controls,$now,
 1170:                             $then);
 1171:             } elsif ($type eq 'users') {
 1172:                 &users_row($r,$status,$key,$access_controls,$now,$then);
 1173:             }
 1174: 	    $r->print(&Apache::loncommon::end_data_table_row());
 1175:         }
 1176:         if ($status eq 'old') {
 1177: 	    $r->print(&Apache::loncommon::start_data_table_row());
 1178:             $r->print('<td colspan="',$colspan.'">'.&additional_item($type).
 1179:                       '</td>');
 1180: 	    $r->print(&Apache::loncommon::end_data_table_row());
 1181:         }
 1182:         $r->print(&Apache::loncommon::end_data_table());
 1183:     } else {
 1184:         $r->print(&mt('No [_1]-based conditions defined.<br />',$type).
 1185:                   &additional_item($type));
 1186:     }
 1187:     return;
 1188: }
 1189: 
 1190: sub course_js {
 1191:     return qq|
 1192: <script type="text/javascript">
 1193: function setRoleOptions(caller,num,cdom,cnum,type) {
 1194:     addIndexnum = getCallerIndex(caller);
 1195:     updateIndexnum = getIndex('update',num);
 1196:     if (caller.checked) {
 1197:         document.portform.elements[updateIndexnum].checked = true;
 1198:         var url = '/adm/portfolio?action=rolepicker&setroles='+addIndexnum+'&cnum='+cnum+'&cdom='+cdom+'&type='+type;
 1199:         var title = 'Roles_Chooser';
 1200:         var options = 'scrollbars=1,resizable=1,menubar=0';
 1201:         options += ',width=700,height=600';
 1202:         rolebrowser = open(url,title,options,'1');
 1203:         rolebrowser.focus();
 1204:     } else {
 1205:         for (var j=0;j<5;j++) {
 1206:             document.portform.elements[addIndexnum+j].value = '';
 1207:         }
 1208:     }
 1209: }
 1210: 
 1211: function getCallerIndex(caller) {
 1212:     for (var i=0;i<document.portform.elements.length;i++) {
 1213:         if (document.portform.elements[i] == caller) {
 1214:             return i;
 1215:         }
 1216:     }
 1217:     return -1;
 1218: }
 1219: 
 1220: function getIndex(name,value) {
 1221:     for (var i=0;i<document.portform.elements.length;i++) {
 1222:         if (document.portform.elements[i].name == name && document.portform.elements[i].value == value) {
 1223:             return i;
 1224:         }
 1225:     }
 1226:     return -1;
 1227: }
 1228: 
 1229: </script>
 1230: |;
 1231: }
 1232: 
 1233: sub course_row {
 1234:     my ($r,$status,$type,$item,$access_controls,$now,$then) = @_;
 1235:     my $content;
 1236:     my $defdom = $env{'user.domain'};
 1237:     if ($status eq 'old') {
 1238:         $content = $$access_controls{$item}; 
 1239:         $defdom =  $content->{'domain'};
 1240:     }
 1241:     my $js = &Apache::loncommon::coursebrowser_javascript($defdom)
 1242: 	.&course_js();
 1243:     my $crsgrptext = 'Groups';
 1244:     if ($type eq 'group') {
 1245:         $crsgrptext = 'Teams';
 1246:     }
 1247:     my $uctype = $type;
 1248:     $uctype =~ s/^(\w)/uc($1)/e;
 1249:     my ($num,$scope,$end,$start) = &set_identifiers($status,$item,$now,$then,
 1250:                                                     $type);
 1251:     $r->print('<td>'.$js.&actionbox($status,$num,$scope).'</td>');
 1252:     if ($status eq 'old') {
 1253:         my $cid = $content->{'domain'}.'_'.$content->{'number'};
 1254:         my %course_description = &Apache::lonnet::coursedescription($cid);
 1255:         $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>');
 1256:     } elsif ($status eq 'new') {
 1257:         $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>');
 1258:     }
 1259:     $r->print('<td>'.&dateboxes($num,$start,$end).'</td>');
 1260:     $r->print('<td><table><tr>');
 1261:     $r->print('<th>'.&mt('Action').'</th><th>'.&mt('Roles').'</th><th>'.
 1262:               &mt('Access').'</th><th>'.&mt('Sections').'</th><th>'.
 1263:               &mt($crsgrptext).'</th></tr>');
 1264:     if ($status eq 'old') {
 1265:         my $max_id = 0;
 1266:         foreach my $role_id (sort(keys(%{$content->{'roles'}}))) {
 1267:             if ($role_id > $max_id) {
 1268:                 $max_id = $role_id;
 1269:             }
 1270:             $max_id ++;
 1271:             my $role_selects = &role_selectors($num,$role_id,$status,$type,$content,'display');
 1272:             $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>');
 1273:         }
 1274:         $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>');
 1275:     } elsif ($status eq 'new') {
 1276:         my $role_id = 1;
 1277:         my $role_selects = &role_selectors($num,$role_id,$status,$type,undef,'display');
 1278:         $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);
 1279:         $r->print('</tr></table></td>');
 1280:     }
 1281:     return;
 1282: }
 1283: 
 1284: sub domains_row {
 1285:     my ($r,$status,$item,$all_doms,$access_controls,$now,$then) = @_;
 1286:     my ($num,$scope,$end,$start) = &set_identifiers($status,$item,$now,$then,
 1287:                                                     'domains');
 1288:     my $dom_select = '<select name="dom_'.$num.'" size="4" multiple="true">'.
 1289:                      ' <option value="">'.&mt('Please select').'</option>';
 1290:     if ($status eq 'old') {
 1291:         my $content =  $$access_controls{$item};
 1292: 	foreach my $dom (@{$all_doms}) {
 1293:             if ((@{$content->{'dom'}} > 0) 
 1294: 		&& (grep(/^\Q$dom\E$/,@{$content->{'dom'}}))) {
 1295:                 $dom_select .= '<option value="'.$dom.'" selected>'.
 1296:                                $dom.'</option>';
 1297:             } else {
 1298:                 $dom_select .= '<option value="'.$dom.'">'.$dom.'</option>';
 1299:             }
 1300:         }
 1301:     } else {
 1302:         foreach my $dom (@{$all_doms}) {
 1303:             $dom_select .= '<option value="'.$dom.'">'.$dom.'</option>';
 1304:         }
 1305:     }
 1306:     $dom_select .= '</select>';
 1307:     $r->print('<td>'.&actionbox($status,$num,$scope).'</td><td>'.$dom_select.
 1308:               '</td><td>'.&dateboxes($num,$start,$end).'</td>');
 1309: }
 1310: 
 1311: sub users_row {
 1312:     my ($r,$status,$item,$access_controls,$now,$then) = @_;
 1313:     my ($num,$scope,$end,$start) = &set_identifiers($status,$item,$now,$then,
 1314:                                                     'users');
 1315:     my $curr_user_list;
 1316:     if ($status eq 'old') {
 1317:         my $content = $$access_controls{$item};
 1318:         $curr_user_list = &sort_users($content->{'users'});
 1319:     }
 1320:     $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>');
 1321: }
 1322: 
 1323: sub additional_item {
 1324:     my ($type) = @_;
 1325:     my $output = &mt('Add new [_1] condition(s)?',$type).'&nbsp;'.&mt('Number to add: ').'<input type="text" name="new'.$type.'" size="3" value="0" />';
 1326:     return $output;
 1327: }
 1328: 
 1329: sub actionbox {
 1330:     my ($status,$num,$scope) = @_;
 1331:     my $output = '<span style="white-space: nowrap"><label>';
 1332:     if ($status eq 'new') {
 1333:         $output .= '<input type="checkbox" name="activate" value="'.$num.'" />'.
 1334:         &mt('Activate');
 1335:     } else {
 1336:         $output .= '<input type="checkbox" name="delete" value="'.$num.
 1337:                    '" />'.&mt('Delete').'</label></span><br /><span style="white-space: nowrap">'.
 1338:                    '<label><input type="checkbox" name="update" value="'.
 1339:                    $num.'" />'.&mt('Update');
 1340:     }
 1341:     $output .= '</label></span><input type="hidden" name="scope_'.$num.                '" value="'.$scope.'" />';
 1342:     return $output;
 1343: }
 1344:                                                                                    
 1345: sub dateboxes {
 1346:     my ($num,$start,$end) = @_;
 1347:     my $noend;
 1348:     if ($end == 0) {
 1349:         $noend = 'checked="checked"';
 1350:     }
 1351:     my $startdate = &Apache::lonhtmlcommon::date_setter('portform',
 1352:                            'startdate_'.$num,$start,undef,undef,undef,1,undef,
 1353:                             undef,undef,1);
 1354:     my $enddate = &Apache::lonhtmlcommon::date_setter('portform',
 1355:                                'enddate_'.$num,$end,undef,undef,undef,1,undef,
 1356:                                 undef,undef,1). '&nbsp;&nbsp;<span style="white-space: nowrap"><label>'.
 1357:                                 '<input type="checkbox" name="noend_'.
 1358:                                 $num.'" '.$noend.' />'.&mt('No end date').
 1359:                                 '</label></span>';
 1360:                                                                                    
 1361:     my $output = &mt('Start: ').$startdate.'<br />'.&mt('End: ').$enddate;
 1362:     return $output;
 1363: }
 1364: 
 1365: sub unpack_acc_key {
 1366:     my ($acc_key) = @_;
 1367:     my ($num,$scope,$end,$start) = ($acc_key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
 1368:     return ($num,$scope,$end,$start);
 1369: }
 1370: 
 1371: sub set_identifiers {
 1372:     my ($status,$item,$now,$then,$scope) = @_;
 1373:     if ($status eq 'old') {
 1374:         return(&unpack_acc_key($item));
 1375:     } else {
 1376:         return($item,$scope,$then,$now);
 1377:     }
 1378: } 
 1379: 
 1380: sub role_selectors {
 1381:     my ($num,$role_id,$status,$type,$content,$caller) = @_;
 1382:     my ($output,$cdom,$cnum,$longid);
 1383:     if ($caller eq 'display') {
 1384:         $longid = '_'.$num.'_'.$role_id;
 1385:         if ($status eq 'new') {
 1386:             foreach my $item ('role','access','section','group') {
 1387:                 $output .= '<td><select name="'.$item.$longid.'">'.
 1388:                            '<option value="">'.&mt('Pick [_1] first',$type).
 1389:                            '</option></select></td>';
 1390:             }
 1391:             return $output;
 1392:         } else {
 1393:             $cdom = $$content{'domain'};
 1394:             $cnum = $$content{'number'};
 1395:         }
 1396:     } elsif ($caller eq 'rolepicker') {
 1397:          $cdom = $env{'form.cdom'};
 1398:          $cnum = $env{'form.cnum'};
 1399:     }
 1400:     my $uctype = $type;
 1401:     $uctype =~ s/^(\w)/uc($1)/e;
 1402:     my ($sections,$groups,$allroles,$rolehash,$accesshash) =
 1403:             &Apache::loncommon::get_secgrprole_info($cdom,$cnum,1,$uctype);
 1404:     if (!@{$sections}) {
 1405:         @{$sections} = ('none');
 1406:     } else {
 1407:         unshift(@{$sections},('all','none'));
 1408:     }
 1409:     if (!@{$groups}) {
 1410:         @{$groups} = ('none');
 1411:     } else {
 1412:         unshift(@{$groups},('all','none'));
 1413:     }
 1414:     my @allacesses = sort(keys(%{$accesshash}));
 1415:     my (%sectionhash,%grouphash);
 1416:     foreach my $sec (@{$sections}) {
 1417:         $sectionhash{$sec} = $sec;
 1418:     }
 1419:     foreach my $grp (@{$groups}) {
 1420:         $grouphash{$grp} = $grp;
 1421:     }
 1422:     my %lookup = (
 1423:                    'role' => $rolehash,
 1424:                    'access' => $accesshash,
 1425:                    'section' => \%sectionhash,
 1426:                    'group' => \%grouphash,
 1427:                  );
 1428:     my @allaccesses = sort(keys(%{$accesshash}));
 1429:     my %allitems = (
 1430:                     'role' => $allroles,
 1431:                     'access' => \@allaccesses,
 1432:                     'section' => $sections,
 1433:                     'group' => $groups, 
 1434:                    );
 1435:     foreach my $item ('role','access','section','group') {
 1436:         $output .= '<td><select name="'.$item.$longid.'" multiple="true" size="4">'."\n";
 1437:         foreach my $entry (@{$allitems{$item}}) {
 1438:             if ($caller eq 'display') {
 1439:                 if ((@{$$content{'roles'}{$role_id}{$item}} > 0) && 
 1440:                     (grep(/^\Q$entry\E$/,@{$$content{'roles'}{$role_id}{$item}}))) {
 1441:                     $output .= '  <option value="'.$entry.'" selected>'.
 1442:                                   $lookup{$item}{$entry}.'</option>';
 1443:                     next;
 1444:                 }
 1445:             }
 1446:             $output .= '  <option value="'.$entry.'">'.
 1447:                        $lookup{$item}{$entry}.'</option>';
 1448:         }
 1449:         $output .= '</select>';
 1450:     }
 1451:     $output .= '</td>';
 1452:     return $output;
 1453: }
 1454: 
 1455: sub role_options_window {
 1456:     my ($r) = @_;
 1457:     my $cdom = $env{'form.cdom'};
 1458:     my $cnum = $env{'form.cnum'};
 1459:     my $type = $env{'form.type'};
 1460:     my $addindex = $env{'form.setroles'};
 1461:     my $grouptitle = 'Groups';
 1462:     if ($type eq 'Group') {
 1463:          $grouptitle = 'Teams';
 1464:     } 
 1465:     my $role_selects = &role_selectors(1,1,'new',$type,undef,'rolepicker');
 1466:     $r->print(<<"END_SCRIPT");
 1467: <script type="text/javascript">
 1468: function setRoles() {
 1469:     var addidx = $addindex+1;
 1470:     for (var i=0; i<4; i++) {
 1471:         var copylist = '';
 1472:         for (var j=0; j<document.rolepicker.elements[i].length; j++) {
 1473:             if (document.rolepicker.elements[i].options[j].selected) {
 1474:                 copylist = copylist + document.rolepicker.elements[i].options[j].value + ',';
 1475:             }
 1476:         }
 1477:         copylist = copylist.substr(0,copylist.length-1);
 1478:         opener.document.portform.elements[addidx+i].value = copylist;
 1479:     }
 1480:     self.close();
 1481: }
 1482: </script>
 1483: END_SCRIPT
 1484:     $r->print(&mt('Select roles, course status, section(s) and group(s) for users who will be able to access the portfolio file.'));
 1485:     $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()" />');
 1486:     return;
 1487: }
 1488: 
 1489: sub select_files {
 1490:     my ($r) = @_;
 1491:     if ($env{'form.continue'} eq 'true') {
 1492:         # here we update the selections for the currentpath
 1493:         # eventually, have to handle removing those not checked, but . . . 
 1494:         my @items=&Apache::loncommon::get_env_multiple('form.checkfile');
 1495:         if (scalar(@items)){
 1496:              &Apache::lonnet::save_selected_files($env{'user.name'}, $env{'form.currentpath'}, @items);
 1497:         }
 1498:     } else {
 1499:             #empty the file for a fresh start
 1500:             &Apache::lonnet::clear_selected_files($env{'user.name'});
 1501:     }
 1502:     my @files = &Apache::lonnet::files_not_in_path($env{'user.name'}, $env{'form.currentpath'});
 1503:     my $java_files = join ",", @files;
 1504:     if ($java_files) {
 1505:         $java_files.=',';
 1506:     }
 1507:     my $javascript =(<<ENDSMP);
 1508:         <script type="text/javascript">
 1509:         function finishSelect() {
 1510: ENDSMP
 1511:     $javascript .= 'fileList = "'.$java_files.'";';
 1512:     $javascript .= (<<ENDSMP);
 1513:             for (i=0;i<document.forms.checkselect.length;i++) { 
 1514:                 if (document.forms.checkselect[i].checked){
 1515:                     fileList = fileList + document.forms.checkselect.currentpath.value + document.forms.checkselect[i].value + "," ;
 1516:                 }
 1517:             }
 1518:             opener.document.forms.lonhomework.$env{'form.fieldname'}.value=fileList;
 1519:             self.close();
 1520:         }
 1521:         </script>
 1522: ENDSMP
 1523:     $r->print($javascript);
 1524:     $r->print("<h1>Select portfolio files</h1>
 1525:                 Check as many as you wish in response to the problem.<br />");
 1526:     my @otherfiles=&Apache::lonnet::files_not_in_path($env{'user.name'}, $env{'form.currentpath'});
 1527:     if (@otherfiles) {
 1528: 	$r->print("<strong>Files selected from other directories:</strong><br />");
 1529: 	foreach my $file (@otherfiles) {
 1530: 	    $r->print($file."<br />");
 1531: 	}
 1532:     }
 1533: }
 1534: 
 1535: sub upload {
 1536:     my ($r,$url,$group)=@_;
 1537:     my $fname=$env{'form.uploaddoc.filename'};
 1538:     my $filesize = (length($env{'form.uploaddoc'})) / 1000; #express in k (1024?)
 1539:     my $disk_quota = 20000; # expressed in k
 1540:     if (defined($group)) {
 1541:         my $grp_quota = &get_group_quota($group); # quota expressed in k 
 1542:         if ($grp_quota ne '') {
 1543:             $disk_quota = $grp_quota;
 1544:         } else {
 1545:             $disk_quota = 0;
 1546:         }
 1547:     }
 1548:     $fname=&Apache::lonnet::clean_filename($fname);
 1549: 
 1550:     my $portfolio_root=&get_portfolio_root();
 1551:     my ($uname,$udom) = &get_name_dom();
 1552:     my $port_path = &get_port_path();
 1553:     # Fixme --- Move the checking for existing file to LOND error return
 1554:     my @dir_list=&get_dir_list($portfolio_root);
 1555:     my $found_file = 0;
 1556:     my $locked_file = 0;
 1557:     foreach my $line (@dir_list) {
 1558:         my ($file_name)=split(/\&/,$line,2);
 1559:         if ($file_name eq $fname){
 1560:             $file_name = $env{'form.currentpath'}.$file_name;
 1561:             $file_name = &prepend_group($file_name);
 1562:             $found_file = 1;
 1563:             if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
 1564:                 $locked_file = 1;
 1565:             } 
 1566:         }
 1567:     }
 1568:     my $current_disk_usage = &Apache::lonnet::diskusage($udom,$uname,$portfolio_root);
 1569:     if (($current_disk_usage + $filesize) > $disk_quota){
 1570:         $r->print('<span class="LC_error">Unable to upload <strong>'.$fname.' (size = '.$filesize.' kilobytes)</strong>. Disk quota will be exceeded.</span>'.
 1571:                   '<br />Disk quota is '.$disk_quota.' kilobytes. Your current disk usage is '.$current_disk_usage.' kilobytes.');
 1572:         $r->print(&done('Back',$url));
 1573:     } 
 1574:     elsif ($found_file){
 1575:         if ($locked_file){
 1576:             $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>'.
 1577:                   '<br />You will be able to rename or delete existing '.$fname.' after a grade has been assigned.');
 1578:             $r->print(&done('Back',$url));      
 1579:         } else {   
 1580:             $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>'.
 1581:                   '<br />To upload, rename or delete existing '.$fname.' in '.$port_path.$env{'form.currentpath'});
 1582:             $r->print(&done('Back',$url));
 1583:         }
 1584:     } else {
 1585:         my $result=&Apache::lonnet::userfileupload('uploaddoc','',
 1586: 	        	 $port_path.$env{'form.currentpath'});
 1587:         if ($result !~ m|^/uploaded/|) {
 1588:             $r->print('<span class="LC_error">'.'An errror occured ('.$result.
 1589: 	              ') while trying to upload '.&display_file().'</span><br />');
 1590: 	    $r->print(&done('Back',$url));
 1591:         } else {
 1592:             $r->print(&done(undef,$url));
 1593:         }
 1594:     }
 1595: }
 1596: 
 1597: sub lock_info {
 1598:     my ($r,$url,$group) = @_;
 1599:     my ($uname,$udom) = &get_name_dom();
 1600:     my $current_permissions = &Apache::lonnet::get_portfile_permissions($udom,
 1601:                                                                        $uname);
 1602:     my $file_name = $env{'form.lockinfo'};
 1603:     $file_name = &prepend_group($file_name);
 1604:     if (defined($file_name) && defined($$current_permissions{$file_name})) {
 1605:         foreach my $array_item (@{$$current_permissions{$file_name}}) {
 1606:             next if (ref($array_item) ne 'ARRAY');
 1607: 
 1608: 	    my $filetext;
 1609: 	    if (defined($group)) {
 1610: 		$filetext = '<strong>'.$env{'form.lockinfo'}.
 1611: 		    '</strong> (group: '.$group.')'; 
 1612: 	    } else {
 1613: 		$filetext = '<strong>'.$file_name.'</strong>';
 1614: 	    } 
 1615: 	    
 1616: 	    my $title ='<strong>'.&Apache::lonnet::gettitle($$array_item[0]).
 1617: 		'</strong><br />';
 1618: 	    if ($$array_item[-1] eq 'graded') {
 1619: 		$r->print(&mt('[_1] was submitted in response to problem: [_2]',
 1620:                               $filetext,$title));
 1621: 	    } elsif ($$array_item[-1] eq 'handback') {
 1622: 		$r->print(&mt('[_1] was handed back in response to problem: [_2]',
 1623:                               $filetext,$title));
 1624: 	    } else {
 1625: 		# submission style lock
 1626: 		$r->print(&mt('[_1] was submitted in response to problem: [_2]',
 1627:                               $filetext,$title));
 1628: 	    }
 1629: 	    my %course_description = 
 1630: 		&Apache::lonnet::coursedescription($$array_item[1]);
 1631: 	    if ( $course_description{'description'} ne '') {
 1632: 		$r->print(&mt('In the course: <strong>[_1]</strong><br />',
 1633: 			      $course_description{'description'}));
 1634: 	    }
 1635:         }
 1636:     }
 1637:     $r->print(&done('Back',$url));
 1638:     return 'ok';
 1639: }
 1640: 
 1641: sub createdir {
 1642:     my ($r,$url)=@_;
 1643:     my $newdir=&Apache::lonnet::clean_filename($env{'form.newdir'});
 1644:     if ($newdir eq '') {
 1645:     	$r->print('<span class="LC_error">'.
 1646: 	    	  &mt("Error: no directory name was provided.").
 1647: 		      '</span><br />');
 1648: 	    $r->print(&done(undef,$url));
 1649: 	    return;
 1650:     }
 1651:     my $portfolio_root = &get_portfolio_root(); 
 1652:     my @dir_list=&get_dir_list($portfolio_root);
 1653:     my $found_file = 0;
 1654:     foreach my $line (@dir_list) {
 1655:         my ($filename)=split(/\&/,$line,2);
 1656:         if ($filename eq $newdir){
 1657:             $found_file = 1;
 1658:         }
 1659:     }
 1660:     if ($found_file){
 1661:     	    $r->print('<span class="LC_error">'.'Unable to create a directory named <strong>'.$newdir.
 1662:     	            ' </strong>a file or directory by that name already exists.</span><br />');
 1663:     } else {
 1664:         my ($uname,$udom) = &get_name_dom();
 1665:         my $port_path = &get_port_path();
 1666:         my $result=&Apache::lonnet::mkdiruserfile($uname,$udom,
 1667: 	         $port_path.$env{'form.currentpath'}.$newdir);
 1668:         if ($result ne 'ok') {
 1669:     	    $r->print('<span class="LC_error">'.'An errror occured ('.$result.
 1670: 	    	      ') while trying to create a new directory '.&display_file().'</span><br />');
 1671:         }
 1672:     }
 1673:     if ($newdir ne $env{'form.newdir'}) {
 1674:         $r->print("The new directory name was changed from:<br /><strong>".$env{'form.newdir'}."</strong> to <strong>$newdir </strong>");  
 1675:     }
 1676:     $r->print(&done(undef,$url));
 1677: }
 1678: 
 1679: sub get_portfolio_root {
 1680:     my ($uname,$udom) = &get_name_dom();
 1681:     my $path;
 1682:     if (defined($env{'form.group'})) {
 1683:         $path = '/userfiles/groups/'.$env{'form.group'}.'/portfolio';
 1684:     } else {
 1685:         $path = '/userfiles/portfolio';
 1686:     }
 1687:     return (&Apache::loncommon::propath($udom,$uname).$path);
 1688: }
 1689: 
 1690: sub get_group_quota {
 1691:     my ($group) = @_;
 1692:     my $group_quota; 
 1693:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 1694:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 1695:     my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum,$group);
 1696:     if (%curr_groups) {
 1697:         my %group_info =  &Apache::longroup::get_group_settings(
 1698:                                                     $curr_groups{$group});
 1699:         $group_quota = $group_info{'quota'}; #expressed in Mb
 1700:         if ($group_quota) {
 1701:             $group_quota = 1000 * $group_quota; #expressed in k
 1702:         } 
 1703:     }
 1704:     return $group_quota;
 1705: } 
 1706: 
 1707: sub get_dir_list {
 1708:     my ($portfolio_root) = @_;
 1709:     my ($uname,$udom) = &get_name_dom();
 1710:     return &Apache::lonnet::dirlist($env{'form.currentpath'},
 1711:                                           $udom,$uname,$portfolio_root);
 1712: }
 1713: 
 1714: sub get_name_dom {
 1715:     my ($uname,$udom);
 1716:     if (defined($env{'form.group'})) {
 1717:         $udom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 1718:         $uname = $env{'course.'.$env{'request.course.id'}.'.num'};
 1719:     } else {
 1720:         $udom = $env{'user.domain'};
 1721:         $uname = $env{'user.name'};
 1722:     }
 1723:     return ($uname,$udom);
 1724: }
 1725: 
 1726: sub prepend_group {
 1727:     my ($filename) = @_;
 1728:     if (defined($env{'form.group'})) {
 1729:         $filename = $env{'form.group'}.$filename;
 1730:     }
 1731:     return $filename;
 1732: }
 1733: 
 1734: sub get_namespace {
 1735:     my $namespace = 'portfolio';
 1736:     if (defined($env{'form.group'})) {
 1737:         my ($uname,$udom) = &get_name_dom();
 1738:         $namespace .= '_'.$udom.'_'.$uname.'_'.$env{'form.group'};
 1739:     }
 1740:     return $namespace;
 1741: }
 1742: 
 1743: sub get_port_path {
 1744:     my $port_path;
 1745:     if (defined($env{'form.group'})) {
 1746:        $port_path = "groups/$env{'form.group'}/portfolio";
 1747:     } else {
 1748:        $port_path = 'portfolio';
 1749:     }
 1750:     return $port_path;
 1751: }
 1752: 
 1753: sub missing_priv {
 1754:     my ($r,$url,$priv) = @_;
 1755:     my $longtext = {
 1756:                       upload => 'upload files',
 1757:                       delete => 'delete files',
 1758:                       rename => 'rename files',
 1759:                       setacl => 'set access controls for files',
 1760:                    };
 1761:     my $escpath = &HTML::Entities::encode($env{'form.currentpath'},'&<>"');
 1762:     my $rtnlink = '<a href="'.$url;
 1763:     if ($url =~ /\?/) {
 1764:         $rtnlink .= '&';
 1765:     } else {
 1766:         $rtnlink .= '?';
 1767:     }
 1768:     $rtnlink .= 'currentpath='.$escpath;
 1769:     $r->print(&mt('<h3>Action disallowed</h3>'));
 1770:     $r->print(&mt('You do not have sufficient privileges to [_1] ',
 1771:                   $longtext->{$priv}));
 1772:     if (defined($env{'form.group'})) {
 1773:         $r->print(&mt("in the group's file repository."));
 1774:         $rtnlink .= &group_args()
 1775:     } else {
 1776:         $r->print(&mt('in this portfolio.'));
 1777:     }
 1778:     $rtnlink .= '">'.&mt('Return to directory listing page').'</a>';
 1779:     $r->print('<br />'.$rtnlink);
 1780:     $r->print(&Apache::loncommon::end_page());
 1781:     return;
 1782: }
 1783: 
 1784: sub coursegrp_portfolio_header {
 1785:     my ($cdom,$cnum,$grp_desc)=@_;
 1786:     my $gpterm  = &Apache::loncommon::group_term();
 1787:     my $ucgpterm = $gpterm;
 1788:     $ucgpterm =~ s/^(\w)/uc($1)/e;
 1789:     if ($env{'form.ref'}) {
 1790:         &Apache::lonhtmlcommon::add_breadcrumb
 1791:             ({href=>"/adm/coursegroups",
 1792:               text=>"Groups",
 1793:               title=>"Course Groups"});
 1794:     }
 1795:     &Apache::lonhtmlcommon::add_breadcrumb
 1796:         ({href=>"/adm/$cdom/$cnum/$env{'form.group'}/smppg?ref=$env{'form.ref'}",
 1797:           text=>"$ucgpterm: $grp_desc",
 1798:           title=>"Go to group's home page"},
 1799:          {href=>"/adm/coursegrp_portfolio?".&group_args(),
 1800:           text=>"Group Portfolio",
 1801:           title=>"Display group portfolio"});
 1802:     my $output = &Apache::lonhtmlcommon::breadcrumbs(
 1803:                          &mt('[_1] portfolio files - [_2]',$gpterm,$grp_desc));
 1804:     return $output;
 1805: }
 1806: 
 1807: 
 1808: sub handler {
 1809:     # this handles file management
 1810:     my $r = shift;
 1811:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 1812:          ['selectfile','currentpath','meta','lockinfo','currentfile','action',
 1813: 	  'fieldname','mode','rename','continue','group','access','setnum',
 1814:           'cnum','cdom','type','setroles','showversions','ref']);
 1815:     my ($uname,$udom,$portfolio_root,$url,$caller,$title,$group,$grp_desc);
 1816:     if ($r->uri =~ m|^(/adm/)([^/]+)|) {
 1817:         $url = $1.$2;
 1818:         $caller = $2;
 1819:     }
 1820:     my ($can_modify,$can_delete,$can_upload,$can_setacl);
 1821:     if ($caller eq 'coursegrp_portfolio') {
 1822:     #  Needs to be in a course
 1823:         if (! ($env{'request.course.fn'})) {
 1824:         # Not in a course
 1825:             $env{'user.error.msg'}=
 1826:      "/adm/coursegrp_portfolio:rgf:0:0:Cannot view group portfolio";
 1827:             return HTTP_NOT_ACCEPTABLE;
 1828:         }
 1829:         my $earlyout = 0;
 1830:         my $view_permission = 
 1831:            &Apache::lonnet::allowed('vcg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
 1832:         $env{'form.group'} =~ s/\W//g;
 1833: 	$group = $env{'form.group'};
 1834:         if ($group) {
 1835:             ($uname,$udom) = &get_name_dom();
 1836:             my %curr_groups = &Apache::longroup::coursegroups($udom,$uname,
 1837: 							       $group); 
 1838:             if (%curr_groups) {
 1839:                 my %grp_content = &Apache::longroup::get_group_settings(
 1840:                                                          $curr_groups{$group});
 1841:                 $grp_desc = &unescape($grp_content{'description'});
 1842:                 if (($view_permission) || (&Apache::lonnet::allowed('rgf',
 1843:                                       $env{'request.course.id'}.'/'.$group))) {
 1844:                     $portfolio_root = &get_portfolio_root();
 1845:                 } else {
 1846:                     $r->print('You do not have the privileges required to access the shared files space for this group.');
 1847:                     $earlyout = 1;
 1848:                 }
 1849:             } else {
 1850:                 $r->print('Not a valid group for this course');
 1851:                 $earlyout = 1;
 1852:             }
 1853:             $title = &mt('Group files').' for '.$group; 
 1854:         } else {
 1855:             $r->print('Invalid group');
 1856:             $earlyout = 1;
 1857:         }
 1858:         if ($earlyout) { return OK; }
 1859:         if (&Apache::lonnet::allowed('mdg',$env{'request.course.id'})) {
 1860:             $can_modify = 1;
 1861:             $can_delete = 1;
 1862:             $can_upload = 1;
 1863:             $can_setacl = 1;
 1864:         } else {
 1865:             if (&Apache::lonnet::allowed('agf',$env{'request.course.id'}.'/'.$group)) {
 1866:                 $can_setacl = 1;
 1867:             }
 1868:             if (&Apache::lonnet::allowed('ugf',$env{'request.course.id'}.'/'.$group)) {
 1869:                 $can_upload = 1;
 1870:             }
 1871:             if (&Apache::lonnet::allowed('mgf',$env{'request.course.id'}.'/'.$group)) {
 1872:                 $can_modify = 1;
 1873:             }
 1874:             if (&Apache::lonnet::allowed('dgf',$env{'request.course.id'}.'/'.$group)) {
 1875:                 $can_delete = 1;
 1876:             }
 1877:         }
 1878:     } else {
 1879:         ($uname,$udom) = &get_name_dom();
 1880:         $portfolio_root = &get_portfolio_root();
 1881:         $title = &mt('Portfolio Manager');
 1882:         $can_modify = 1;
 1883:         $can_delete = 1;
 1884:         $can_upload = 1;
 1885:         $can_setacl = 1;
 1886:     }
 1887: 
 1888:     my $port_path = &get_port_path();
 1889:     &Apache::loncommon::no_cache($r);
 1890:     &Apache::loncommon::content_type($r,'text/html');
 1891:     $r->send_http_header;
 1892:     # Give the LON-CAPA page header
 1893:     if ($env{"form.mode"} eq 'selectfile'){
 1894:         $r->print(&Apache::loncommon::start_page($title,undef,
 1895: 						 {'only_body' => 1}));
 1896:     } elsif ($env{'form.action'} eq 'rolepicker') {
 1897:         $r->print(&Apache::loncommon::start_page('New role-based condition',undef,
 1898:                                                  {'no_nav_bar'  => 1, }));
 1899:     } else {
 1900:         $r->print(&Apache::loncommon::start_page($title));
 1901:     }
 1902:     $r->rflush();
 1903: 	if (($env{'form.storeupl'}) & (!$env{'form.uploaddoc.filename'})){
 1904:    	    $r->print('<span class="LC_error">'.
 1905: 		      'No file was selected to upload.'.
 1906: 		      'To upload a file, click <strong>Browse...</strong>'.
 1907: 		      ', select a file, then click <strong>Upload</strong>.'.
 1908: 		      '</span>');
 1909: 	}
 1910:     if ($env{'form.meta'}) {
 1911:         &open_form($r,$url);
 1912: #        $r->print(&edit_meta_data($r, $env{'form.currentpath'}.$env{'form.selectfile'}));
 1913:         $r->print('Edit the meta data<br />');
 1914:         &close_form($r,$url);
 1915:     }
 1916:     if ($env{'form.store'}) {
 1917:     }
 1918: 
 1919:     if ($env{'form.uploaddoc.filename'}) {
 1920:         if ($can_upload) {
 1921: 	    &upload($r,$url,$group);
 1922:         } else {
 1923:             &missing_priv($r,$url,'upload');
 1924:         }
 1925:     } elsif ($env{'form.action'} eq 'delete' && $env{'form.confirmed'}) {
 1926:         if ($can_delete) {
 1927: 	    &delete_confirmed($r,$url);
 1928:         } else {
 1929:             &missing_priv($r,$url,'delete');
 1930:         }
 1931:     } elsif ($env{'form.action'} eq 'delete') {
 1932:         if ($can_delete) {
 1933: 	    &delete($r,$url);
 1934:         } else {
 1935:             &missing_priv($r,$url,'delete');
 1936:         }
 1937:     } elsif ($env{'form.action'} eq 'deletedir' && $env{'form.confirmed'}) {
 1938:         if ($can_delete) {
 1939: 	    &delete_dir_confirmed($r,$url);
 1940:         } else {
 1941:             &missing_priv($r,$url,'delete');
 1942:         }
 1943:     } elsif ($env{'form.action'} eq 'deletedir') {
 1944:         if ($can_delete) {
 1945: 	    &delete_dir($r,$url);
 1946:         } else {
 1947:             &missing_priv($r,$url,'delete');
 1948:         }
 1949:     } elsif ($env{'form.action'} eq 'rename' && $env{'form.confirmed'}) {
 1950:         if ($can_modify) {
 1951: 	    &rename_confirmed($r,$url);
 1952:         } else {
 1953:             &missing_priv($r,$url,'rename');
 1954:         }
 1955:     } elsif ($env{'form.rename'}) {
 1956:         $env{'form.selectfile'} = $env{'form.rename'};
 1957:         $env{'form.action'} = 'rename';
 1958:         if ($can_modify) {
 1959: 	    &rename($r,$url);
 1960:         } else {
 1961:             &missing_priv($r,$url,'rename');
 1962:         }
 1963:     } elsif ($env{'form.access'}) {
 1964:         $env{'form.selectfile'} = $env{'form.access'};
 1965:         $env{'form.action'} = 'chgaccess';
 1966:         &display_access($r,$url,$group,$can_setacl,$port_path);
 1967:     } elsif ($env{'form.action'} eq 'chgaccess') {
 1968:         if ($can_setacl) {
 1969:             &update_access($r,$url,$group,$port_path);
 1970:         } else {
 1971:             &missing_priv($r,$url,'setacl');
 1972:         }
 1973:     } elsif ($env{'form.action'} eq 'rolepicker') {
 1974:         if ($can_setacl) { 
 1975:             &role_options_window($r);
 1976:         } else {
 1977:             &missing_priv($r,$url,'setacl');
 1978:         }
 1979:     } elsif ($env{'form.createdir'}) {
 1980:         if ($can_upload) {
 1981: 	    &createdir($r,$url);
 1982:         } else {
 1983:             &missing_priv($r,$url,'upload');
 1984:         }
 1985:     } elsif ($env{'form.lockinfo'}) {
 1986:         &lock_info($r,$url,$group);
 1987:     } else {
 1988: 	my $current_path='/';
 1989: 	if ($env{'form.currentpath'}) {
 1990: 	    $current_path = $env{'form.currentpath'};
 1991: 	}
 1992:         if ($caller eq 'coursegrp_portfolio') {
 1993:             &Apache::lonhtmlcommon::clear_breadcrumbs();
 1994:             $r->print(&coursegrp_portfolio_header($udom,$uname,$grp_desc));
 1995:         }
 1996:         my @dir_list=&get_dir_list($portfolio_root);
 1997: 	if ($dir_list[0] eq 'no_such_dir'){
 1998: 	    # two main reasons for this:
 1999:             #    1) never been here, so directory structure not created
 2000: 	    #    2) back-button navigation after deleting a directory
 2001: 	    if ($current_path eq '/'){
 2002: 	        &Apache::lonnet::mkdiruserfile($uname,$udom,
 2003: 					       &get_port_path());
 2004: 	    } else {
 2005:                 # some directory that snuck in get rid of the directory
 2006:                 # from the recent pulldown, just in case
 2007: 		&Apache::lonhtmlcommon::remove_recent('portfolio',
 2008: 						      [$current_path]);
 2009: 		$current_path = '/'; # force it back to the root        
 2010: 	    }
 2011: 	    # now grab the directory list again, for the first time
 2012: 	    @dir_list=&Apache::lonnet::dirlist($current_path,
 2013: 					    $udom,$uname,$portfolio_root);
 2014:         }
 2015: 	# need to know if directory is empty so it can be removed if desired
 2016: 	my $is_empty=(@dir_list == 2);
 2017: 	&display_common($r,$url,$current_path,$is_empty,\@dir_list,
 2018: 			$can_upload);
 2019:         &display_directory($r,$url,$current_path,$is_empty,\@dir_list,$group,
 2020:                            $can_upload,$can_modify,$can_delete,$can_setacl);
 2021: 	$r->print(&Apache::loncommon::end_page());
 2022:     }
 2023:     return OK;
 2024: }
 2025: 
 2026: 1;
 2027: __END__

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