File:  [LON-CAPA] / loncom / interface / lonaboutme.pm
Revision 1.80: download - view: text, annotated - select for diffs
Tue Dec 9 22:16:23 2008 UTC (15 years, 5 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD
- Bug 5839. DCs can set availability of Users' About Me pages and Portfolio
 Provide access to adm/$dom/$uname/aboutme/portfolio if Portfolio is enabled, but About Me page is disabled for this user, in case there are files with public/passphrase protected ACLs set.

    1: # The LearningOnline Network
    2: # "About Me" Personal Information
    3: #
    4: # $Id: lonaboutme.pm,v 1.80 2008/12/09 22:16:23 raeburn 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: =pod
   30: 
   31: =head1 NAME
   32: 
   33: pache::lonaboutme
   34: 
   35: =head1 SYNOPSIS
   36: 
   37: (empty)
   38: 
   39: This is part of the LearningOnline Network with CAPA project
   40: described at http://www.lon-capa.org.
   41: 
   42: =head1 OVERVIEW
   43: 
   44: (empty)
   45: 
   46: 
   47: =head1 SUBROUTINES
   48: 
   49: =over
   50: 
   51: =item handler()
   52: 
   53: =item in_course()
   54: 
   55: =item aboutme_info()
   56: 
   57: =item print_portfiles_link()
   58: 
   59: =item build_query_string()
   60: 
   61: =item display_portfolio_header()
   62: 
   63: =item display_portfolio_files()
   64: 
   65: =item portfolio_files()
   66: 
   67: =item build_hierarchy()
   68: 
   69: =item parse_directory()
   70: 
   71: =back
   72: 
   73: =cut
   74: 
   75: 
   76: package Apache::lonaboutme;
   77: 
   78: use strict;
   79: use Apache::Constants qw(:common);
   80: use Apache::loncommon;
   81: use Apache::lonnet;
   82: use Apache::lontexconvert;
   83: use Apache::lonfeedback;
   84: use Apache::lonrss();
   85: use Apache::lonlocal;
   86: use Apache::lonmsgdisplay();
   87: use Apache::lontemplate;
   88: use HTML::Entities();
   89: 
   90: sub handler {
   91:     my $r = shift;
   92:     &Apache::loncommon::content_type($r,'text/html');
   93:     $r->send_http_header;
   94:     return OK if $r->header_only;
   95:     my $target=$env{'form.grade_target'};
   96: # ------------------------------------------------------------ Print the screen
   97:     if ($target eq 'tex') {
   98: 	$r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
   99:     }
  100:     my (undef,undef,$cdom,$cnum,undef,$action)=split(/\//,$r->uri);
  101:     my $is_course;
  102: # Is this even a user?
  103:     if (&Apache::lonnet::homeserver($cnum,$cdom) eq 'no_host') {
  104: 	&Apache::loncommon::simple_error_page($r,'No info',
  105: 					      'No user information available');
  106:         return OK;
  107:     } else {
  108:         $is_course = &Apache::lonnet::is_course($cdom,$cnum);
  109:     }
  110: 
  111:     my $candisplay = 1;
  112:     if (!$is_course) {
  113:         if ($action ne 'portfolio') {
  114:             $candisplay = &Apache::lonnet::usertools_access($cnum,$cdom,'aboutme');
  115:             if ((!$candisplay) && ($env{'request.course.id'})) {
  116:                 $candisplay = &aboutme_access($cnum,$cdom);
  117:             }
  118:             if (!$candisplay) {
  119:                 if ($target eq 'tex') {
  120:                     $r->print('\noindent{\large\textbf{'.&mt('No user home page available').'}}\\\\\\\\');
  121:                 } else {
  122:                     $r->print(&Apache::loncommon::start_page("Personal Information"));
  123:                     $r->print('<h2>'.&mt('No user home page available') .'</h2>'.
  124:                               &mt('This is a result of one of the following:').'<ul>'.
  125:                               '<li>'.&mt('The administrator of this domain has disabled home page functionality for this specific user.').'</li>'.
  126:                               '<li>'.&mt('The domain has been configured to disable, by default, home page functionality for all users in the domain.').'</li>'.
  127:                               '</ul>');
  128:                     $r->print(&Apache::loncommon::end_page());
  129:                 }
  130:                 return OK;
  131:             }
  132:         }
  133:     }
  134: 
  135: # --------------------------------------------------------- The syllabus fields
  136:     my %syllabusfields=&Apache::lonlocal::texthash(
  137:        'aaa_contactinfo'   => 'Contact Information',
  138:        'bbb_aboutme'       => 'About Me',
  139:        'ccc_webreferences' => 'Web References');
  140: 
  141: # ------------------------------------------------------------ Get Query String
  142:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
  143: 					    ['forceedit','forcestudent',
  144: 					     'register','popup']);
  145: 
  146: # ----------------------------------------------- Available Portfolio file display 
  147:     if (($target ne 'tex') && ($action eq 'portfolio')) {
  148:         &display_portfolio_header($r,$is_course);
  149:         if ((!$is_course) && (!&Apache::lonnet::usertools_access($cnum,$cdom,'portfolio'))) {
  150:             $r->print('<h2>'.&mt('No user portfolio available') .'</h2>'.
  151:                       &mt('This is a result of one of the following:').'<ul>'.
  152:                       '<li>'.&mt('The administrator of this domain has disabled portfolio functionality for this specific user.').'</li>'.
  153:                       '<li>'.&mt('The domain has been configured to disable, by default, portfolio functionality for all users in the domain.').'</li>'.
  154:                       '</ul>');
  155:         } else {
  156:             my ($blocked,$blocktext) = 
  157:                 &Apache::loncommon::blocking_status('port',$cnum,$cdom);
  158:             if (!$blocked) {
  159:                 &display_portfolio_files($r,$is_course);
  160:             } else {
  161:                 $r->print($blocktext);
  162:             }
  163:         }
  164:         $r->print(&Apache::loncommon::end_page());
  165:         return OK;
  166:     }
  167: 
  168:     if ($is_course) {
  169:         if ($target ne 'tex') {
  170:             my $start_page =
  171:                 &Apache::loncommon::start_page(
  172:                     "Course Information",
  173:                      undef,
  174:                      {'function' => $env{'forcestudent'},
  175:                       'domain'   => $cdom,
  176:                       'force_register' => $env{'forceregister'},});
  177:             $r->print($start_page);
  178:             $r->print('<h2>'.&mt('Group files').'</h2>');
  179:             &print_portfiles_link($r,$is_course);
  180:             $r->print(&Apache::loncommon::end_page());
  181:         }
  182:         return OK;
  183:     }
  184: 
  185: # --------------------------------------------------------------- Force Student
  186:     my $forcestudent='';
  187:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  188: 
  189:     my $forceregister = '';
  190:     if ($forcestudent eq '') {
  191:         $forceregister = $env{'form.register'};
  192:     }
  193:        
  194: # --------------------------------------- There is such a user, get environment
  195:     my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
  196:     if ($target ne 'tex') {
  197: 	my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
  198:         my $args = {'function' => $forcestudent,
  199:                     'domain'   => $cdom,
  200:                     'force_register' => $forceregister};
  201:         if ($env{'form.popup'}) {
  202:             $args->{'no_nav_bar'} = 1;
  203:         }
  204: 	my $start_page = 
  205: 	    &Apache::loncommon::start_page("Personal Information",$rss_link,$args);
  206: 	$r->print($start_page);
  207: 	$r->print('<h2>'.&Apache::loncommon::plainname($cnum,$cdom).'</h2>');
  208:     } else {
  209: 	$r->print('\noindent{\large\textbf{'.&Apache::loncommon::plainname($cnum,$cdom).'}}\\\\\\\\');
  210:     }
  211:     if ($courseenv{'nickname'}) {
  212:        $r->print(
  213:          '<h2>&quot;'.$courseenv{'nickname'}.
  214:          '&quot;</h2>');
  215:     }
  216:     if ($target ne 'tex') {
  217: 	$r->print('<h3>'.&Apache::lonnet::domain($cdom,'description').'</h3>');#OLD SendMessage POS
  218:     } else {
  219: 	$r->print('\textbf{'.&Apache::lonnet::domain($cdom,'description').'}\\\\');
  220:     }
  221:     my %syllabus=&Apache::lonnet::dump('aboutme',$cdom,$cnum);
  222:     my $allowed=0;
  223: 
  224: # does this user have privileges to post, etc?
  225: 
  226:        my $privleged=$allowed=(($env{'user.name'} eq $cnum) && 
  227: 			       ($env{'user.domain'} eq $cdom));
  228:        if ($forcestudent or $target eq 'tex') { $allowed=0; }
  229:  
  230:        if ($allowed) {
  231:            my $query_string = &build_query_string({'forcestudent' => '1','popup' => $env{'form.popup'}});
  232: 	   $r->print('<p><b>'.&mt('Privacy Note').':</b> '.
  233: 		     &mt('The information you submit can be viewed by anybody who is logged into LON-CAPA. Do not provide information that you are not ready to share publicly.').
  234: 		     '</p>'.
  235: 		     &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')).'</p><p><a href="'.$r->uri.$query_string.'">'.&mt('Show Public View').'</a>'.
  236: 		     &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
  237:        } elsif ($privleged && $target ne 'tex') {
  238:            my $query_string = &build_query_string({'forceedit' => '1','popup' => $env{'form.popup'}});
  239: 	   $r->print('<p><a href="'.$r->uri.$query_string.'">'.
  240: 		     &mt('Edit').'</a></p>');
  241:        }
  242:       if (($env{'form.uploaddoc.filename'}) &&
  243:           ($env{'form.storeupl'}) && ($allowed)) {
  244:  	  if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
  245: 	      if ($syllabus{'uploaded.photourl'}) {
  246: 		  &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  247: 	      }
  248: 	      $syllabus{'uploaded.photourl'}=
  249:                  &Apache::lonnet::userphotoupload('uploaddoc','aboutme');
  250:  	  }
  251:           $syllabus{'uploaded.lastmodified'}=time;
  252:           &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  253:        }
  254:     if ($allowed && $env{'form.delupl'}) {
  255: 	if ($syllabus{'uploaded.photourl'}) {
  256: 	    &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  257: 	    delete($syllabus{'uploaded.photourl'});
  258: 	    &Apache::lonnet::del('aboutme',['uploaded.photourl'],$cdom,$cnum);
  259: 	}
  260:     }
  261:        if (($allowed) && ($env{'form.storesyl'})) {
  262: 	   foreach my $syl_field (keys(%syllabusfields)) {
  263:                my $field=$env{'form.'.$syl_field};
  264:                $field=~s/\s+$//s;
  265:                $field=&Apache::lonfeedback::clear_out_html($field,
  266:                                                            $env{'user.adv'});
  267: 	       $syllabus{$syl_field}=$field;
  268:            }
  269:            $syllabus{'uploaded.lastmodified'}=time;
  270:            &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  271:        }
  272: 
  273: my $lastmod;
  274: my $image; 
  275: # ---------------------------------------------------------------- Get syllabus
  276:     if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
  277:        $lastmod=$syllabus{'uploaded.lastmodified'};
  278:        $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
  279:        # $r->print(&mt('Last updated').': '.$lastmod); #Old Last Modifi Pos
  280:        if ($syllabus{'uploaded.photourl'}) {
  281: 	   &Apache::lonnet::allowuploaded('/adm/aboutme',
  282: 					  $syllabus{'uploaded.photourl'});
  283: 	   $image=qq{<img name="userPhoto" src="$syllabus{'uploaded.photourl'}" />};
  284: 
  285: 	   if ($target eq 'tex') {
  286: 	       $image=&Apache::lonxml::xmlparse($r,'tex',$image);
  287: 	   }
  288: 	  # $r->print($image); #Print old Image
  289:        }
  290:        if ($allowed) {
  291:            $r->print(
  292: 	 '<form method="post">
  293:                <input type="submit" name="delupl" value="'.&mt('Delete Photo').'" />
  294:           </form>'.
  295: 	 '<form method="post" enctype="multipart/form-data">'.
  296:          '<h3>'.&mt('Upload a Photo').'</h3>'.
  297:          '<input type="file" name="uploaddoc" size="50" />'.
  298:          '<input type="submit" name="storeupl" value="'.&mt('Upload').'" />'.
  299:          '<input type="hidden" name="popup" value="'.$env{'form.popup'}.'" />'.
  300: 	 '</form><form method="post">');
  301: 
  302:        }
  303: 	&Apache::lontemplate::start_columnSection($r);
  304: 	&Apache::lontemplate::print_content_template($r,$allowed,$target,\%syllabusfields,\%syllabus);
  305:        if($target ne 'tex')
  306:        {
  307: 		&Apache::lontemplate::print_image($r,$image);
  308: 		  &print_portfiles_link($r,$is_course);
  309:       		 $r->print('</div>');
  310: 			$r->print('<p>');
  311:         
  312: 
  313: 	$r->print('Kontakt');
  314: 	$r->print(&Apache::loncommon::messagewrapper(&mt('Send me a message'),$cnum,$cdom).'</p>'.&Apache::lonrss::advertisefeeds($cnum,$cdom));
  315: 
  316: 
  317:        }
  318: 
  319:        if ($allowed) {
  320:            if ($env{'form.popup'}) {
  321:                $r->print('<input type="hidden" name="popup" value="'.
  322:                          $env{'form.popup'}.'" />');
  323:            }
  324: 	   $r->print('</form>');
  325:        }
  326:        if ($target ne 'tex') {$r->print('<br />');} else {$r->print('\\\\');}
  327:     } else {
  328:        $r->print('<p>'.&mt('No personal information provided').'.</p>');
  329:     }
  330: 
  331:     if ($target ne 'tex') {
  332:         # &print_portfiles_link($r,$is_course); #old Print files
  333: 
  334:     }
  335: 
  336:     if ($env{'request.course.id'}
  337: 	&& &Apache::lonnet::allowed('srm',$env{'request.course.id'})
  338: 	&& &in_course($cdom,$cnum)) {
  339: 	if ($target ne 'tex') {
  340: 	    $r->print('<a name="coursecomment" />');
  341: 	    $r->print('<hr /><h3>'.
  342: 		      &mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'</h3>'.
  343: 		      &mt('Shared by course faculty and staff').
  344: 		      &Apache::loncommon::help_open_topic("Course_Face_To_Face_Records,Course_Critical_Message").
  345: 		      '<br />');
  346: 	    &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  347: 	    $r->print('<hr />');
  348: 	    if (&Apache::lonnet::allowed('vsa',
  349: 					 $env{'request.course.id'}) ||
  350: 		&Apache::lonnet::allowed('vsa',
  351: 					 $env{'request.course.id'}.'/'.
  352: 					 $env{'request.course.sec'})) {
  353: 		$r->print(&Apache::loncommon::track_student_link
  354: 			  ('View recent activity by this student',
  355: 			   $cnum,$cdom).('&nbsp;'x2));
  356: 	    }
  357: 	    $r->print(&Apache::loncommon::noteswrapper('Add Records',$cnum,$cdom));
  358: 	} else {
  359: 	    $r->print('\\\\\textbf{'.&mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'}\\\\'.&mt('Shared by course faculty and staff').'\\\\\\\\');
  360: 	    &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  361: 	}
  362:     }
  363:     if ($target ne 'tex') {
  364:         if ($env{'form.popup'}) {
  365:             $r->print('<p><a href="javascript:window.close()">'.&mt('Close window').'</a>');
  366:         }
  367: 	$r->print('<br />'.&mt('Last updated').': '.$lastmod);
  368: 	&Apache::lontemplate::end_columnSection($r);
  369: 	$r->print(&Apache::loncommon::end_page());
  370:     } else {
  371: 	$r->print('\end{document}');
  372:     }
  373: 
  374:   
  375: 	
  376:     return OK;
  377: }
  378: 
  379: sub in_course {
  380:     my ($udom,$uname,$cdom,$cnum,$type) = @_;
  381:     $type ||= 'any';
  382:     if (!defined($cdom) || !defined($cnum)) {
  383: 	my $cid  = $env{'request.course.id'};
  384: 	$cdom = $env{'course.'.$cid.'.domain'};
  385: 	$cnum = $env{'course.'.$cid.'.num'};
  386:     }
  387:     my %roles = &Apache::lonnet::dump('roles',$udom,$uname);
  388:     my @course_roles = grep(m{^/\Q$cdom\E/\Q$cnum\E[/_]}, keys(%roles));
  389:     return 0 if (!@course_roles);
  390:     return 1 if ($type eq 'any');
  391:     my $now = time();
  392:     foreach my $role (@course_roles) {
  393: 	my (undef,$role_end,$role_start)=split(/\_/,$roles{$role});
  394: 	my $status = 'active';
  395: 	if ($role_start > 0 && $now < $role_start) {
  396: 	    $status = 'future';
  397: 	}
  398: 	if ($role_end > 0 && $now > $role_end) {
  399: 	    $status = 'previous';
  400: 	}
  401: 	return 1 if ($status eq $type);
  402:     }
  403:     return 0;
  404: }
  405: 
  406: sub aboutme_info {
  407:     my ($r,$is_course) = @_;
  408:     my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
  409:     my $name;
  410:     if (!$is_course) {
  411:         $name = &Apache::loncommon::plainname($cnum,$cdom);
  412:     }
  413:     return ($cdom,$cnum,$name);
  414: }
  415: 
  416: sub print_portfiles_link {
  417:     my ($r,$is_course) = @_;
  418:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  419:     my $filecounts = &portfolio_files($r,'showlink',undef,$is_course,
  420:                                       $cdom,$cnum,$name);
  421:     my $query_string = &build_query_string();
  422:     my $output;
  423:     my %lt = &Apache::lonlocal::texthash(
  424:                          vpfi => 'Viewable portfolio files',
  425:                          vgpf => 'Viewable group portfolio files',
  426:                          difl => 'Display file listing',
  427:              );                     
  428:     if ($filecounts->{'both'} > 0) {
  429: 	$output = '<div class="ContentBoxSpecial"><h4 class="hcell">';
  430: 	$output .= ($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  431:         
  432: 	#$output = '<h4>'.($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  433:         $output .= '<a href="/adm/'.$cdom.'/'.$cnum.'/aboutme/portfolio'.
  434:                    $query_string.'">'.$lt{'difl'}.
  435:                    '</a><br /><br />';
  436:         if ($filecounts->{'both'} == 1) {
  437:             if ($is_course) {
  438:                 $output .= &mt('One group portfolio file is available.').'<ul>';
  439:             } else {
  440:                 $output .= &mt('One portfolio file owned by [_1] is available.',$name).'<ul>';
  441:             }
  442:         } else {
  443:             if ($is_course) {
  444:                 $output .= &mt('A total of [_1] group portfolio files are available.',$filecounts->{'both'}).'<ul>';
  445:             } else {
  446:                 $output .= &mt('A total of [_1] portfolio files owned by [_2] are available.',$filecounts->{'both'},$name).'<ul>';
  447:             }
  448:         }
  449:         if ($filecounts->{'withoutpass'}) {
  450: 	    $output .= '<li>'.&mt('[quant,_1,file is,files are] publicly accessible.',$filecounts->{'withoutpass'}).'</li>';
  451:         }
  452:         if ($filecounts->{'withpass'}) {
  453: 	    $output .= '<li>'.&mt('[quant,_1,file requires,files require] a passphrase for access.',$filecounts->{'withpass'}).'</li>';
  454:         }
  455:         $output .= '</ul>';
  456: 	$output .='</p>';
  457:     }
  458:     $r->print($output);
  459:     return;
  460: }
  461: 
  462: sub build_query_string {
  463:     my ($new_items) = @_;
  464:     my $query_string;
  465:     my @formelements = ('register'); 
  466:     my $new = 0;
  467:     if (ref($new_items) eq 'HASH') {
  468:         $new = 1;
  469:         if (!defined($new_items->{'forceedit'}) && 
  470:             !defined($new_items->{'forcestudent'})) {
  471:             push(@formelements,('forceedit','forcestudent'));
  472:         }
  473:     } else {
  474:         push(@formelements,('forceedit','forcestudent'));
  475:     }
  476:     foreach my $element (@formelements) {
  477:         if (exists($env{'form.'.$element})) {
  478:             if ((!$new) || (!defined($new_items->{$element}))) {
  479:                 $query_string .= '&amp;'.$element.'='.$env{'form.'.$element};
  480:             }
  481:         }
  482:     }
  483:     if ($new) {
  484:         foreach my $key (keys(%{$new_items})) {
  485:             $query_string .= '&amp;'.$key.'='.$new_items->{$key};
  486:         }
  487:     }
  488:     $query_string =~ s/^\&amp;/\?/;
  489:     return $query_string;
  490: }
  491: 
  492: sub display_portfolio_header {
  493:     my ($r,$is_course) = @_;
  494:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  495:     my $query_string = &build_query_string();
  496:     &Apache::lonhtmlcommon::clear_breadcrumbs();
  497:     my $forcestudent='';
  498:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  499: 
  500:     my $output;
  501:     if ($is_course) {
  502:         $output = 
  503:             &Apache::loncommon::start_page('Viewable group portfolio files',undef,
  504:                                             {'function' => $forcestudent,
  505:                                              'domain'   => $cdom,});
  506:         $output .= '<h3>'.&mt('Group Portfolio files').'</h3>';
  507:     } else {
  508:         $output  =
  509:             &Apache::loncommon::start_page('Viewable portfolio files',undef,
  510:                                             {'function' => $forcestudent,
  511:                                              'domain'   => $cdom,});
  512:         if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  513:             &Apache::lonhtmlcommon::add_breadcrumb
  514:                 ({href=>"/adm/$cdom/$cnum/aboutme".$query_string,
  515:                   text=>"Personal information - $name",
  516:                   title=>"Go to personal information page for $name"},                 {href=>"/adm/$cdom/$cnum/aboutme/portfolio",
  517:                   text=>"Viewable files - $name",
  518:                   title=>"Viewable portfolio files for $name"}
  519:             );
  520:             $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('Viewable portfolio files.'));
  521:         }
  522:         $output .= '<h3>'.&mt('Portfolio files for [_1]',$name).'</h3>';
  523:     }
  524:     $r->print($output);
  525:     return;
  526: }
  527: 
  528: sub display_portfolio_files {
  529:     my ($r,$is_course) = @_;
  530:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  531:     my %lt = ( withoutpass => 'passphrase not required',
  532: 	       withpass    => 'passphrase protected',
  533: 	       both        => 'all access types ',);
  534:     %lt = &Apache::lonlocal::texthash(%lt);
  535: 
  536:     my $portaccess = 'withoutpass';
  537:     if (exists($env{'form.portaccess'})) {
  538:         $portaccess = $env{'form.portaccess'};
  539:     }
  540: 
  541:     my $output = '<form action="'.&HTML::Entities::encode($r->uri,'<>&"')
  542: 	.'" name="displaystatus" method="post">'.
  543: 	&mt('File access type: ').'<select name="portaccess">';
  544:     foreach my $type ('withoutpass','withpass','both') {
  545:         $output .= '<option value="'.$type.'" ';
  546:         if ($portaccess eq $type) {
  547:             $output .= 'selected="selected"';
  548:         }
  549:         $output .= '>'.$lt{$type}.'</option>';
  550:     }
  551:     $output .= '</select>'."\n".
  552:                '<input type="submit" name="portaccessbutton" value="'.
  553:                &mt('Update display').'" />';
  554:     $output .= '</form><br /><br />';
  555:     $r->print($output);
  556:     my $filecounts = &portfolio_files($r,'listfiles',\%lt,$is_course,
  557:                                       $cdom,$cnum,$name);
  558:     if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  559:         my $query_string = &build_query_string();
  560:         $r->print('<br /><br /><a href="/adm/'.$cdom.'/'.$cnum.
  561:                   '/aboutme'.$query_string.'">');
  562:         if ($is_course) {
  563:             $r->print(&mt('Course Information page'));
  564:         } else {
  565:             $r->print(&mt('Information about [_1]',$name));
  566:         }
  567:         $r->print('</a>');
  568:     }
  569:     return;
  570: }
  571: 
  572: sub portfolio_files {
  573:     my ($r,$mode,$lt,$is_course,$cdom,$cnum,$name) = @_;
  574:     my $filecounts = {
  575:                        withpass    => 0,
  576:                        withoutpass => 0,
  577:                        both        => 0,
  578:                      };
  579:     my $current_permissions =
  580: 	&Apache::lonnet::get_portfile_permissions($cdom,$cnum);
  581:     my %access_controls = 
  582: 	&Apache::lonnet::get_access_controls($current_permissions);
  583:     my $portaccess;
  584:     if ($mode eq 'showlink') {
  585:         $portaccess = 'both';
  586:     } else {
  587:         $portaccess = 'withoutpass';
  588:         if (exists($env{'form.portaccess'})) {
  589:             $portaccess = $env{'form.portaccess'};
  590:         }
  591:     }
  592: 
  593:     my $diroutput;
  594:     if ($is_course) {
  595:         my %files_by_group;
  596:         foreach my $filename (sort(keys(%access_controls))) {
  597:             my ($group,$path) = split('/',$filename,2);
  598:             $files_by_group{$group}{$path} = $access_controls{$filename}; 
  599:         }
  600:         foreach my $group (sort(keys(%files_by_group))) {
  601:             my %fileshash;
  602:             my $grpout .= &build_hierarchy($r,$cdom,$cnum,$portaccess,
  603:                                            $is_course,$filecounts,$mode,
  604:                                            $files_by_group{$group},
  605:                                            \%fileshash,$group);
  606:             if ($grpout) {
  607:                 $diroutput .= '<h3>'.$group.'</h3>'.$grpout.'<br />';
  608:             }
  609:         }
  610:     } else {
  611:         my %allfileshash;
  612:         $diroutput = &build_hierarchy($r,$cdom,$cnum,$portaccess,$is_course,
  613:                                       $filecounts,$mode,\%access_controls,
  614:                                       \%allfileshash);
  615:     }
  616:     if ($mode eq 'listfiles') {
  617:         if ($filecounts->{'both'}) {
  618:              $r->print($diroutput);
  619:         } else {
  620:             my $access_text;
  621:             if (ref($lt) eq 'HASH') {
  622:                 $access_text = $lt->{$portaccess};   
  623:             }
  624:             $r->print(&mt('There are no available files of the specified access type: [_1]',$access_text));
  625:         }
  626:     }
  627:     return $filecounts;
  628: }
  629: 
  630: { 
  631:     my $count=0;
  632:     sub portfolio_table_start {
  633: 	$count=0;
  634: 	return '<table class="LC_aboutme_port">';
  635:     }
  636:     sub portfolio_row_start {
  637: 	$count++;
  638: 	my $class = ($count%2)?'LC_odd_row'
  639: 	                      :'LC_even_row';
  640: 	return '<tr class="'.$class.'">';
  641:     }
  642: }
  643: 
  644: sub build_hierarchy {
  645:     my ($r,$cdom,$cnum,$portaccess,$is_course,$filecounts,$mode,$access_info,
  646:         $allfileshash,$group) = @_;
  647:     foreach my $filename (sort(keys(%{$access_info}))) {
  648:         my $access_status =
  649:            &Apache::lonnet::get_portfolio_access($cdom,$cnum,$filename,$group,                                                 $$access_info{$filename});
  650:         if ($portaccess eq 'both') {
  651:             if (($access_status ne 'ok') &&
  652:                 ($access_status !~  /^[^:]+:guest_/)) {
  653:                 next;
  654:             }
  655:         } elsif ($portaccess eq 'withoutpass') {
  656:             if ($access_status ne 'ok') {
  657:                 next;
  658:             }
  659:         } elsif ($portaccess eq 'withpass') {
  660:             if ($access_status !~  /^[^:]+:guest_/) {
  661:                 next;
  662:             }
  663:         }
  664:         if ($mode eq 'listfiles') {
  665:             $filename =~ s/^\///;
  666:             my @pathitems = split('/',$filename);
  667:             my $lasthash = $allfileshash;
  668:             while (@pathitems > 1) {
  669:                 my $newlevel = shift(@pathitems);
  670:                 if (!exists($lasthash->{$newlevel})) {
  671:                     $lasthash->{$newlevel} = {};
  672:                 }
  673:                 $lasthash = $lasthash->{$newlevel};
  674:             }
  675:             $lasthash->{$pathitems[0]} = $filename;
  676:         }
  677:         if ($access_status eq 'ok') {
  678:             $filecounts->{'withoutpass'} ++;
  679:         } elsif ($access_status =~  /^[^:]+:guest_/) {
  680:             $filecounts->{'withpass'} ++;
  681:         }
  682:     }
  683:     $filecounts->{'both'} =  $filecounts->{'withoutpass'} +
  684:                               $filecounts->{'withpass'};
  685:     my $output;
  686:     if ($mode eq 'listfiles') {
  687:         if ($filecounts->{'both'} > 0) {
  688:             $output = &portfolio_table_start();
  689:             $output .= &parse_directory($r,0,$allfileshash,'',$is_course,
  690:                                         $group);
  691:             $output .= '</table>';
  692:         }
  693:     }
  694:     return $output;
  695: }
  696: 
  697: sub parse_directory {
  698:     my ($r,$depth,$currhash,$path,$is_course,$group) = @_;
  699:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  700:     $depth++;
  701:     my $output;
  702: 
  703:     my $portfolio_root = &Apache::portfolio::get_portfolio_root($cdom,$cnum,
  704:                                                                 $group);
  705:     my $getpropath = 1;
  706:     my %dirlist = map {
  707: 	    ((split('&',$_,2))[0],1)
  708: 	} &Apache::lonnet::dirlist($portfolio_root.$path,$cdom,$cnum,$getpropath);
  709:     foreach my $item (sort(keys(%{$currhash}))) {
  710:         $output .= &portfolio_row_start();
  711:         $output .= '<td style="padding-left: '.($depth*25).'px">';
  712:         if (ref($currhash->{$item}) eq 'HASH') {
  713:             my $title=&HTML::Entities::encode($item,'<>&"');
  714:             $output .= '<img src="'.&Apache::loncommon::lonhttpdurl("/adm/lonIcons/navmap.folder.open.gif").'" alt="'.&mt('Folder').' '.$title.'" class="LC_icon" />&nbsp;'.$title;
  715: 	    $output .= '</td><td></td></tr>';
  716:             $output .= &parse_directory($r,$depth,$currhash->{$item},
  717: 					$path.'/'.$item,$is_course,$group);
  718:         } else {
  719: 	    my $file_name; 
  720: 	    if ($currhash->{$item} =~ m|/([^/]+)$|) {
  721: 		$file_name = $1;
  722: 	    } else {
  723: 		$file_name = $currhash->{$item};
  724: 	    }
  725: 	    my $have_meta = exists($dirlist{$file_name.'.meta'});
  726:             my $url;
  727:             if ($is_course) {
  728:                 $url = '/uploaded/'.$cdom.'/'.$cnum.'/groups/'.$group.
  729:                        '/portfolio/'.$currhash->{$item};
  730:             } else { 
  731: 	        $url = '/uploaded/'.$cdom.'/'.$cnum.'/portfolio/'.
  732: 		       $currhash->{$item};
  733:             }
  734:             my $showname;
  735: 	    if ($have_meta) {
  736: 		$showname = &Apache::lonnet::metadata($url,'title');
  737: 	    }
  738: 	    if ($showname eq '') {
  739: 		$showname = $file_name;
  740: 	    } else {
  741: 		$showname = $file_name.' ('.$showname.')';
  742: 	    }
  743: 
  744:             $showname=&HTML::Entities::encode($showname,'<>&"');
  745:             $output .= '<a href="'.$url.'">'.
  746: 		'<img alt="" src="'.&Apache::loncommon::icon($currhash->{$item}).'" class="LC_icon" />'.
  747: 		'&nbsp;'.$showname.'</a>';
  748: 	    $output.='</td><td>';
  749: 	    if ($have_meta) {
  750: 		$output.= '<a href="'.$url.'.meta"><img alt="'.&mt('Catalog Information').'" src="'.
  751: 		&Apache::loncommon::lonhttpdurl('/res/adm/pages/catalog.gif').
  752: 		'" class="LC_icon" /></a>';
  753: 	    }
  754: 	    $output .= '</td></tr>';
  755:         }
  756:     }
  757:     return $output;
  758: }
  759: 
  760: sub aboutme_access {
  761:     my ($uname,$udom) = @_;
  762:     my $privcheck = $env{'request.course.id'};
  763:     my $sec;
  764:     if ($env{'request.course.sec'} ne '') {
  765:         $sec = $env{'request.course.sec'};
  766:         $privcheck .= '/'.$sec;
  767:     }
  768:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  769:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
  770:     if (($cdom eq '') || ($cnum eq '')) {
  771:         my %coursehash = &coursedescription($env{'request.course.id'});
  772:         $cdom = $coursehash{'domain'};
  773:         $cnum = $coursehash{'cnum'};
  774:     }
  775:     if ((&allowed('srm',$privcheck)) || (&allowed('dff',$privcheck))) {
  776:         if (&in_course($uname,$udom,$cnum,$cdom)) {
  777:             return 1;
  778:         }
  779:     }
  780:     return;
  781: }
  782: 
  783: 1;
  784: __END__

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