File:  [LON-CAPA] / loncom / interface / lonaboutme.pm
Revision 1.97: download - view: text, annotated - select for diffs
Thu Feb 19 11:11:22 2009 UTC (15 years, 3 months ago) by weissno
Branches: MAIN
CVS tags: HEAD

weiss: changed "personal homepage" to "personal information page"
weiss: backround = consistent wording

    1: # The LearningOnline Network
    2: # Personal Information Page
    3: #
    4: # $Id: lonaboutme.pm,v 1.97 2009/02/19 11:11:22 weissno 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: use Image::Magick;
   90: 
   91: sub handler {
   92:     my $r = shift;
   93:     &Apache::loncommon::content_type($r,'text/html');
   94:     $r->send_http_header;
   95:     return OK if $r->header_only;
   96:     my $target=$env{'form.grade_target'};
   97: # ------------------------------------------------------------ Print the screen
   98:     if ($target eq 'tex') {
   99: 	$r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
  100:     }
  101:     my (undef,undef,$cdom,$cnum,undef,$action)=split(/\//,$r->uri);
  102:     my $is_course;
  103: # Is this even a user?
  104:     if (&Apache::lonnet::homeserver($cnum,$cdom) eq 'no_host') {
  105: 	&Apache::loncommon::simple_error_page($r,'No info',
  106: 					      'No user information available');
  107:         return OK;
  108:     } else {
  109:         $is_course = &Apache::lonnet::is_course($cdom,$cnum);
  110:     }
  111: 
  112:     my $candisplay = 1;
  113:     if (!$is_course) {
  114:         if ($action ne 'portfolio') {
  115:             $candisplay = &Apache::lonnet::usertools_access($cnum,$cdom,'aboutme');
  116:             if ((!$candisplay) && ($env{'request.course.id'})) {
  117:                 $candisplay = &aboutme_access($cnum,$cdom);
  118:             }
  119:             if (!$candisplay) {
  120:                 if ($target eq 'tex') {
  121:                     $r->print('\noindent{\large\textbf{'.&mt('No user home page available').'}}\\\\\\\\');
  122:                 } else {
  123:                     $r->print(&Apache::loncommon::start_page("Personal Information Page"));
  124:                     $r->print('<h2>'.&mt('No user home page available') .'</h2>'.
  125:                               &mt('This is a result of one of the following:').'<ul>'.
  126:                               '<li>'.&mt('The administrator of this domain has disabled home page functionality for this specific user.').'</li>'.
  127:                               '<li>'.&mt('The domain has been configured to disable, by default, home page functionality for all users in the domain.').'</li>'.
  128:                               '</ul>');
  129:                     $r->print(&Apache::loncommon::end_page());
  130:                 }
  131:                 return OK;
  132:             }
  133:         }
  134:     }
  135: 
  136: # --------------------------------------------------------- The syllabus fields
  137:     my %syllabusfields=&Apache::lonlocal::texthash(
  138:        'aaa_contactinfo'   => 'Contact Information',
  139:        'bbb_aboutme'       => 'Personal Information Page',
  140:        'ccc_webreferences' => 'Web References');
  141: 
  142: # ------------------------------------------------------------ Get Query String
  143:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
  144: 					    ['forceedit','forcestudent',
  145: 					     'register','popup']);
  146: 
  147: # ----------------------------------------------- Available Portfolio file display 
  148:     if (($target ne 'tex') && ($action eq 'portfolio')) {
  149:         &display_portfolio_header($r,$is_course);
  150:         if ((!$is_course) && (!&Apache::lonnet::usertools_access($cnum,$cdom,'portfolio'))) {
  151:             $r->print('<h2>'.&mt('No user portfolio available') .'</h2>'.
  152:                       &mt('This is a result of one of the following:').'<ul>'.
  153:                       '<li>'.&mt('The administrator of this domain has disabled portfolio functionality for this specific user.').'</li>'.
  154:                       '<li>'.&mt('The domain has been configured to disable, by default, portfolio functionality for all users in the domain.').'</li>'.
  155:                       '</ul>');
  156:         } else {
  157:             my ($blocked,$blocktext) = 
  158:                 &Apache::loncommon::blocking_status('port',$cnum,$cdom);
  159:             if (!$blocked) {
  160:                 &display_portfolio_files($r,$is_course);
  161:             } else {
  162:                 $r->print($blocktext);
  163:             }
  164:         }
  165:         $r->print(&Apache::loncommon::end_page());
  166:         return OK;
  167:     }
  168: 
  169:     if ($is_course) {
  170:         if ($target ne 'tex') {
  171: 	    my $brcrum = [{href=>"/adm/navmaps",text=>"Navigate Course Contents"},
  172: 			  {href=>"/adm/aboutme",text=>"Course Information"}];
  173:             my $start_page =
  174:                 &Apache::loncommon::start_page(
  175:                     "Course Information",
  176:                      undef,
  177:                      {'function' => $env{'forcestudent'},
  178:                       'domain'   => $cdom,
  179:                       'force_register' => $env{'forceregister'},
  180:                       'bread_crumbs' => $brcrum});
  181:             $r->print($start_page);
  182:             $r->print('<h2>'.&mt('Group files').'</h2>');
  183:             &print_portfiles_link($r,$is_course);
  184:             $r->print(&Apache::loncommon::end_page());
  185:         }
  186:         return OK;
  187:     }
  188: 
  189: # --------------------------------------------------------------- Force Student
  190:     my $forcestudent='';
  191:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  192: 
  193:     my $forceregister = '';
  194:     if ($forcestudent eq '') {
  195:         $forceregister = $env{'form.register'};
  196:     }
  197:        
  198: # --------------------------------------- There is such a user, get environment
  199:     my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
  200:     if ($target ne 'tex') {
  201: 	my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
  202:         my $args = {'function' => $forcestudent,
  203:                     'domain'   => $cdom,
  204:                     'force_register' => $forceregister};
  205:         if ($env{'form.popup'}) {
  206:             $args->{'no_nav_bar'} = 1;
  207:         }
  208: 	$args->{'bread_crumbs'} = [{href=>"/adm/fhwfdev/$cnum/aboutme",text=>"Personal Information Ppage"}];
  209: 	my $start_page = 
  210: 	    &Apache::loncommon::start_page("Personal Information Page",$rss_link,$args);
  211: 	$r->print($start_page);
  212:         $r->print('<div class="LC_ContentBoxSpecial">');
  213: 	$r->print('<h2 class="LC_hcell">'.&Apache::loncommon::plainname($cnum,$cdom).'</h2>');
  214:     } else {
  215: 	$r->print('\noindent{\large\textbf{'.&Apache::loncommon::plainname($cnum,$cdom).'}}\\\\\\\\');
  216:     }
  217:     if ($courseenv{'nickname'}) {
  218:        $r->print(
  219:          '<h2>&quot;'.$courseenv{'nickname'}.
  220:          '&quot;</h2>');
  221:     }
  222:     if ($target ne 'tex') {
  223:         $r->print('<blockquote>');
  224: 	$r->print('<h3>'.&Apache::lonnet::domain($cdom,'description').'</h3>');#OLD SendMessage POS
  225:     } else {
  226: 	$r->print('\textbf{'.&Apache::lonnet::domain($cdom,'description').'}\\\\');
  227:     }
  228:     my %syllabus=&Apache::lonnet::dump('aboutme',$cdom,$cnum);
  229:     my $allowed=0;
  230: 
  231: # does this user have privileges to post, etc?
  232: 
  233:        my $privleged=$allowed=(($env{'user.name'} eq $cnum) && 
  234: 			       ($env{'user.domain'} eq $cdom));
  235:        if ($forcestudent or $target eq 'tex') { $allowed=0; }
  236: 	my $query_string; 
  237:        if ($allowed) {
  238:            $query_string = &build_query_string({'forcestudent' => '1','popup' => $env{'form.popup'}});
  239: 	   $r->print('<p><b>'.&mt('Privacy Note').':</b> '.
  240: 		     &mt('The information you submit can be viewed by anybody who is logged into LON-CAPA. Do not provide information that you are not ready to share publicly.').
  241: 		     '</p><p><a href="'.$r->uri.$query_string.'">'.&mt('Show Public View').'</a>'.
  242:                      &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>'.
  243: 		     &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')).'</p>');
  244:        } elsif ($privleged && $target ne 'tex') {
  245:            $query_string = &build_query_string({'forceedit' => '1','popup' => $env{'form.popup'}});
  246: 	   $r->print('<p><a href="'.$r->uri.$query_string.'">'.
  247: 		     &mt('Edit').'</a></p>');
  248:        }
  249:       if (($env{'form.uploaddoc.filename'}) &&
  250:           ($env{'form.storeupl'}) && ($allowed)) {
  251:  	  if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
  252: 	      if ($syllabus{'uploaded.photourl'}) {
  253: 		  &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  254: 	      }
  255: 	      $syllabus{'uploaded.photourl'}=
  256:                  &Apache::lonnet::userphotoupload('uploaddoc','aboutme');
  257:  	  }
  258:           $syllabus{'uploaded.lastmodified'}=time;
  259:           &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  260:        }
  261:     if ($allowed && $env{'form.delupl'}) {
  262: 	if ($syllabus{'uploaded.photourl'}) {
  263: 	    &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  264: 	    delete($syllabus{'uploaded.photourl'});
  265: 	    &Apache::lonnet::del('aboutme',['uploaded.photourl'],$cdom,$cnum);
  266: 	}
  267:     }
  268:        if (($allowed) && ($env{'form.storesyl'})) {
  269: 	   foreach my $syl_field (keys(%syllabusfields)) {
  270:                my $field=$env{'form.'.$syl_field};
  271:                $field=~s/\s+$//s;
  272:                $field=&Apache::lonfeedback::clear_out_html($field,
  273:                                                            $env{'user.adv'});
  274: 	       $syllabus{$syl_field}=$field;
  275:            }
  276:            $syllabus{'uploaded.lastmodified'}=time;
  277:            &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  278:        }
  279: 
  280: my $lastmod;
  281: my $image; 
  282: # ---------------------------------------------------------------- Get syllabus
  283:     if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
  284:        $lastmod=$syllabus{'uploaded.lastmodified'};
  285:        $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
  286:  	$r->print('<br />'.&mt('Last updated').': '.$lastmod);
  287:        if ($syllabus{'uploaded.photourl'}) {
  288: 	   &Apache::lonnet::allowuploaded('/adm/aboutme',
  289: 					  $syllabus{'uploaded.photourl'});
  290: 	
  291:            #This call is to resize all "Personal Information" images in the LonCapa System. When its done, you can remove this line.
  292: 	   &Apache::lonnet::resizeImage(&Apache::lonnet::filelocation('',$syllabus{'uploaded.photourl'}));
  293: 	   #---End Resize---
  294: 
  295: 	   $image=qq{<img name="userPhoto" src="$syllabus{'uploaded.photourl'} " class="LC_AboutMe_Image" />};
  296: 	   
  297: 	   if ($target eq 'tex') {
  298: 	       $image=&Apache::lonxml::xmlparse($r,'tex',$image);
  299: 	   }
  300: 	
  301:        }
  302:        if ($allowed) {
  303:            $r->print(
  304: 	 '<form method="post" enctype="multipart/form-data">'.
  305:          '<h3>'.&mt('Upload a Photo').'</h3>'.
  306:          '<input type="file" name="uploaddoc" size="50" />'.
  307:          '<input type="submit" name="storeupl" value="'.&mt('Upload').'" />'.
  308:          '<input type="hidden" name="popup" value="'.$env{'form.popup'}.'" />'.
  309: 	 '</form><form method="post"><input type="submit" name="delupl" value="'.&mt('Delete Photo').'" /> </form><p>
  310: ');
  311: 
  312:        }
  313: 
  314: 	if($allowed) {
  315: 		$r->print('<form method="post">');
  316: 	}
  317: 
  318: 	 if($target ne 'tex') #print Image
  319:      	 {	
  320: 		&Apache::lontemplate::start_ContentBox($r);		
  321: 		&Apache::lontemplate::send_message($r,$cnum,$cdom);
  322: 		&Apache::lontemplate::end_ContentBox($r);
  323: 		$r->print($image);		
  324: 		
  325: 	}#End Print Image
  326: 
  327: 	#Print Content eg. Contactinfo aboutme,...	
  328: 	&Apache::lontemplate::print_aboutme_content_template($r,$allowed,$target,\%syllabusfields,\%syllabus);	
  329:         #End Print Content
  330: 
  331:        if($target ne 'tex')#Begin Print RSS and portfiles
  332:        {	
  333: 				
  334: 		&print_portfiles_link($r,$is_course);
  335: 		if(&Apache::lonrss::advertisefeeds($cnum,$cdom) ne ''){
  336: 			$r->print('<div class="LC_ContentBoxSpecial">');
  337: 			$r->print('<h4 class="LC_hcell">'.'RSS Feeds and Blogs'.'</h4>');
  338: 			$r->print(&Apache::lonrss::advertisefeeds($cnum,$cdom));
  339: 			$r->print('</div>');
  340: 		}		
  341: 		
  342: 		if($allowed){
  343: 			$r->print('<p><a href="'.$r->uri.$query_string.'">'.&mt('Show Public View').'</a>'.
  344:                         	&Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
  345: 		}
  346:        }#End  Print RSS and portfiles
  347: 
  348:        $r->print('</blockquote>');
  349:        $r->print('</div>');
  350:        if ($allowed) {
  351:            if ($env{'form.popup'}) {
  352:                $r->print('<input type="hidden" name="popup" value="'.
  353:                          $env{'form.popup'}.'" />');
  354:            }
  355: 	   $r->print('</form>');
  356:        }
  357:        if ($target ne 'tex') {$r->print('<br />');} else {$r->print('\\\\');}
  358:     } else {
  359: 	 &Apache::lontemplate::send_message($r,$cnum,$cdom);
  360:        $r->print('<p>'.&mt('No personal information provided').'.</p>');
  361:     }
  362:     
  363: 
  364:     if ($env{'request.course.id'}
  365: 	&& &Apache::lonnet::allowed('srm',$env{'request.course.id'})
  366: 	&& &in_course($cdom,$cnum)) {
  367: 	if ($target ne 'tex') {
  368: 	    $r->print('<a name="coursecomment" />');
  369: 	    $r->print('<hr /><h3>'.
  370: 		      &mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'</h3>'.
  371: 		      &mt('Shared by course faculty and staff').
  372: 		      &Apache::loncommon::help_open_topic("Course_Face_To_Face_Records,Course_Critical_Message").
  373: 		      '<br />');
  374: 	    &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  375: 	    $r->print('<hr />');
  376: 	    if (&Apache::lonnet::allowed('vsa',
  377: 					 $env{'request.course.id'}) ||
  378: 		&Apache::lonnet::allowed('vsa',
  379: 					 $env{'request.course.id'}.'/'.
  380: 					 $env{'request.course.sec'})) {
  381: 		$r->print(&Apache::loncommon::track_student_link
  382: 			  ('View recent activity by this student',
  383: 			   $cnum,$cdom).('&nbsp;'x2));
  384: 	    }
  385: 	    $r->print(&Apache::loncommon::noteswrapper(&mt('Add Records'),$cnum,$cdom));
  386: 	} else {
  387: 	    $r->print('\\\\\textbf{'.&mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'}\\\\'.&mt('Shared by course faculty and staff').'\\\\\\\\');
  388: 	    &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  389: 	}
  390:     }
  391:     if ($target ne 'tex') {
  392:         if ($env{'form.popup'}) {
  393:             $r->print('<p><a href="javascript:window.close()">'.&mt('Close window').'</a>');
  394:         }
  395: 	$r->print(&Apache::loncommon::end_page());
  396:     } else {
  397: 	$r->print('\end{document}');
  398:     }
  399: 
  400:   
  401: 	
  402:     return OK;
  403: }
  404: 
  405: sub in_course {
  406:     my ($udom,$uname,$cdom,$cnum,$type) = @_;
  407:     $type ||= 'any';
  408:     if (!defined($cdom) || !defined($cnum)) {
  409: 	my $cid  = $env{'request.course.id'};
  410: 	$cdom = $env{'course.'.$cid.'.domain'};
  411: 	$cnum = $env{'course.'.$cid.'.num'};
  412:     }
  413:     my %roles = &Apache::lonnet::dump('roles',$udom,$uname);
  414:     my @course_roles = grep(m{^/\Q$cdom\E/\Q$cnum\E[/_]}, keys(%roles));
  415:     return 0 if (!@course_roles);
  416:     return 1 if ($type eq 'any');
  417:     my $now = time();
  418:     foreach my $role (@course_roles) {
  419: 	my (undef,$role_end,$role_start)=split(/\_/,$roles{$role});
  420: 	my $status = 'active';
  421: 	if ($role_start > 0 && $now < $role_start) {
  422: 	    $status = 'future';
  423: 	}
  424: 	if ($role_end > 0 && $now > $role_end) {
  425: 	    $status = 'previous';
  426: 	}
  427: 	return 1 if ($status eq $type);
  428:     }
  429:     return 0;
  430: }
  431: 
  432: sub aboutme_info {
  433:     my ($r,$is_course) = @_;
  434:     my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
  435:     my $name;
  436:     if (!$is_course) {
  437:         $name = &Apache::loncommon::plainname($cnum,$cdom);
  438:     }
  439:     return ($cdom,$cnum,$name);
  440: }
  441: 
  442: sub print_portfiles_link {
  443:     my ($r,$is_course) = @_;
  444:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  445:     my $filecounts = &portfolio_files($r,'showlink',undef,$is_course,
  446:                                       $cdom,$cnum,$name);
  447:     my $query_string = &build_query_string();
  448:     my $output;
  449:     my %lt = &Apache::lonlocal::texthash(
  450:                          vpfi => 'Viewable portfolio files',
  451:                          vgpf => 'Viewable group portfolio files',
  452:                          difl => 'Display file listing',
  453:              );                     
  454:     if ($filecounts->{'both'} > 0) {
  455: 	$output = '<div class="LC_ContentBoxSpecial"><h4 class="LC_hcell">';
  456: 	$output .= ($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  457:         
  458: 	#$output = '<h4>'.($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  459:         $output .= '<a href="/adm/'.$cdom.'/'.$cnum.'/aboutme/portfolio'.
  460:                    $query_string.'">'.$lt{'difl'}.
  461:                    '</a><br /><br />';
  462:         if ($filecounts->{'both'} == 1) {
  463:             if ($is_course) {
  464:                 $output .= &mt('One group portfolio file is available.').'<ul>';
  465:             } else {
  466:                 $output .= &mt('One portfolio file owned by [_1] is available.',$name).'<ul>';
  467:             }
  468:         } else {
  469:             if ($is_course) {
  470:                 $output .= &mt('A total of [_1] group portfolio files are available.',$filecounts->{'both'}).'<ul>';
  471:             } else {
  472:                 $output .= &mt('A total of [_1] portfolio files owned by [_2] are available.',$filecounts->{'both'},$name).'<ul>';
  473:             }
  474:         }
  475:         if ($filecounts->{'withoutpass'}) {
  476: 	    $output .= '<li>'.&mt('[quant,_1,file is,files are] publicly accessible.',$filecounts->{'withoutpass'}).'</li>';
  477:         }
  478:         if ($filecounts->{'withpass'}) {
  479: 	    $output .= '<li>'.&mt('[quant,_1,file requires,files require] a passphrase for access.',$filecounts->{'withpass'}).'</li>';
  480:         }
  481:         $output .= '</ul>';
  482: 	$output .='</p>';
  483: 	$output .='</div>';
  484:     }
  485:     $r->print($output);
  486:     return;
  487: }
  488: 
  489: sub build_query_string {
  490:     my ($new_items) = @_;
  491:     my $query_string;
  492:     my @formelements = ('register'); 
  493:     my $new = 0;
  494:     if (ref($new_items) eq 'HASH') {
  495:         $new = 1;
  496:         if (!defined($new_items->{'forceedit'}) && 
  497:             !defined($new_items->{'forcestudent'})) {
  498:             push(@formelements,('forceedit','forcestudent'));
  499:         }
  500:     } else {
  501:         push(@formelements,('forceedit','forcestudent'));
  502:     }
  503:     foreach my $element (@formelements) {
  504:         if (exists($env{'form.'.$element})) {
  505:             if ((!$new) || (!defined($new_items->{$element}))) {
  506:                 $query_string .= '&amp;'.$element.'='.$env{'form.'.$element};
  507:             }
  508:         }
  509:     }
  510:     if ($new) {
  511:         foreach my $key (keys(%{$new_items})) {
  512:             $query_string .= '&amp;'.$key.'='.$new_items->{$key};
  513:         }
  514:     }
  515:     $query_string =~ s/^\&amp;/\?/;
  516:     return $query_string;
  517: }
  518: 
  519: sub display_portfolio_header {
  520:     my ($r,$is_course) = @_;
  521:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  522:     my $query_string = &build_query_string();
  523:     &Apache::lonhtmlcommon::clear_breadcrumbs();
  524:     my $forcestudent='';
  525:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  526: 
  527:     my $output;
  528:     if ($is_course) {
  529:         $output = 
  530:             &Apache::loncommon::start_page('Viewable group portfolio files',undef,
  531:                                             {'function' => $forcestudent,
  532:                                              'domain'   => $cdom,});
  533:         $output .= '<h3>'.&mt('Group Portfolio files').'</h3>';
  534:     } else {
  535:         $output  =
  536:             &Apache::loncommon::start_page('Viewable portfolio files',undef,
  537:                                             {'function' => $forcestudent,
  538:                                              'domain'   => $cdom,});
  539:         if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  540:             &Apache::lonhtmlcommon::add_breadcrumb
  541:                 ({href=>"/adm/$cdom/$cnum/aboutme".$query_string,
  542:                   text=>"Personal Information Page - $name",
  543:                   title=>"Go to personal information page for $name"},                 {href=>"/adm/$cdom/$cnum/aboutme/portfolio",
  544:                   text=>"Viewable files - $name",
  545:                   title=>"Viewable portfolio files for $name"}
  546:             );
  547:             $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('Viewable portfolio files.'));
  548:         }
  549:         $output .= '<h3>'.&mt('Portfolio files for [_1]',$name).'</h3>';
  550:     }
  551:     $r->print($output);
  552:     return;
  553: }
  554: 
  555: sub display_portfolio_files {
  556:     my ($r,$is_course) = @_;
  557:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  558:     my %lt = ( withoutpass => 'passphrase not required',
  559: 	       withpass    => 'passphrase protected',
  560: 	       both        => 'all access types ',);
  561:     %lt = &Apache::lonlocal::texthash(%lt);
  562: 
  563:     my $portaccess = 'withoutpass';
  564:     if (exists($env{'form.portaccess'})) {
  565:         $portaccess = $env{'form.portaccess'};
  566:     }
  567: 
  568:     my $output = '<form action="'.&HTML::Entities::encode($r->uri,'<>&"')
  569: 	.'" name="displaystatus" method="post">'.
  570: 	&mt('File access type: ').'<select name="portaccess">';
  571:     foreach my $type ('withoutpass','withpass','both') {
  572:         $output .= '<option value="'.$type.'" ';
  573:         if ($portaccess eq $type) {
  574:             $output .= 'selected="selected"';
  575:         }
  576:         $output .= '>'.$lt{$type}.'</option>';
  577:     }
  578:     $output .= '</select>'."\n".
  579:                '<input type="submit" name="portaccessbutton" value="'.
  580:                &mt('Update display').'" />';
  581:     $output .= '</form><br /><br />';
  582:     $r->print($output);
  583:     my $filecounts = &portfolio_files($r,'listfiles',\%lt,$is_course,
  584:                                       $cdom,$cnum,$name);
  585:     if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  586:         my $query_string = &build_query_string();
  587:         $r->print('<br /><br /><a href="/adm/'.$cdom.'/'.$cnum.
  588:                   '/aboutme'.$query_string.'">');
  589:         if ($is_course) {
  590:             $r->print(&mt('Course Information page'));
  591:         } else {
  592:             $r->print(&mt('Information about [_1]',$name));
  593:         }
  594:         $r->print('</a>');
  595:     }
  596:     return;
  597: }
  598: 
  599: sub portfolio_files {
  600:     my ($r,$mode,$lt,$is_course,$cdom,$cnum,$name) = @_;
  601:     my $filecounts = {
  602:                        withpass    => 0,
  603:                        withoutpass => 0,
  604:                        both        => 0,
  605:                      };
  606:     my $current_permissions =
  607: 	&Apache::lonnet::get_portfile_permissions($cdom,$cnum);
  608:     my %access_controls = 
  609: 	&Apache::lonnet::get_access_controls($current_permissions);
  610:     my $portaccess;
  611:     if ($mode eq 'showlink') {
  612:         $portaccess = 'both';
  613:     } else {
  614:         $portaccess = 'withoutpass';
  615:         if (exists($env{'form.portaccess'})) {
  616:             $portaccess = $env{'form.portaccess'};
  617:         }
  618:     }
  619: 
  620:     my $diroutput;
  621:     if ($is_course) {
  622:         my %files_by_group;
  623:         foreach my $filename (sort(keys(%access_controls))) {
  624:             my ($group,$path) = split('/',$filename,2);
  625:             $files_by_group{$group}{$path} = $access_controls{$filename}; 
  626:         }
  627:         foreach my $group (sort(keys(%files_by_group))) {
  628:             my %fileshash;
  629:             my $grpout .= &build_hierarchy($r,$cdom,$cnum,$portaccess,
  630:                                            $is_course,$filecounts,$mode,
  631:                                            $files_by_group{$group},
  632:                                            \%fileshash,$group);
  633:             if ($grpout) {
  634:                 $diroutput .= '<h3>'.$group.'</h3>'.$grpout.'<br />';
  635:             }
  636:         }
  637:     } else {
  638:         my %allfileshash;
  639:         $diroutput = &build_hierarchy($r,$cdom,$cnum,$portaccess,$is_course,
  640:                                       $filecounts,$mode,\%access_controls,
  641:                                       \%allfileshash);
  642:     }
  643:     if ($mode eq 'listfiles') {
  644:         if ($filecounts->{'both'}) {
  645:              $r->print($diroutput);
  646:         } else {
  647:             my $access_text;
  648:             if (ref($lt) eq 'HASH') {
  649:                 $access_text = $lt->{$portaccess};   
  650:             }
  651:             $r->print(&mt('There are no available files of the specified access type: [_1]',$access_text));
  652:         }
  653:     }
  654:     return $filecounts;
  655: }
  656: 
  657: { 
  658:     my $count=0;
  659:     sub portfolio_table_start {
  660: 	$count=0;
  661: 	return '<table class="LC_aboutme_port">';
  662:     }
  663:     sub portfolio_row_start {
  664: 	$count++;
  665: 	my $class = ($count%2)?'LC_odd_row'
  666: 	                      :'LC_even_row';
  667: 	return '<tr class="'.$class.'">';
  668:     }
  669: }
  670: 
  671: sub build_hierarchy {
  672:     my ($r,$cdom,$cnum,$portaccess,$is_course,$filecounts,$mode,$access_info,
  673:         $allfileshash,$group) = @_;
  674:     foreach my $filename (sort(keys(%{$access_info}))) {
  675:         my $access_status =
  676:            &Apache::lonnet::get_portfolio_access($cdom,$cnum,$filename,$group,                                                 $$access_info{$filename});
  677:         if ($portaccess eq 'both') {
  678:             if (($access_status ne 'ok') &&
  679:                 ($access_status !~  /^[^:]+:guest_/)) {
  680:                 next;
  681:             }
  682:         } elsif ($portaccess eq 'withoutpass') {
  683:             if ($access_status ne 'ok') {
  684:                 next;
  685:             }
  686:         } elsif ($portaccess eq 'withpass') {
  687:             if ($access_status !~  /^[^:]+:guest_/) {
  688:                 next;
  689:             }
  690:         }
  691:         if ($mode eq 'listfiles') {
  692:             $filename =~ s/^\///;
  693:             my @pathitems = split('/',$filename);
  694:             my $lasthash = $allfileshash;
  695:             while (@pathitems > 1) {
  696:                 my $newlevel = shift(@pathitems);
  697:                 if (!exists($lasthash->{$newlevel})) {
  698:                     $lasthash->{$newlevel} = {};
  699:                 }
  700:                 $lasthash = $lasthash->{$newlevel};
  701:             }
  702:             $lasthash->{$pathitems[0]} = $filename;
  703:         }
  704:         if ($access_status eq 'ok') {
  705:             $filecounts->{'withoutpass'} ++;
  706:         } elsif ($access_status =~  /^[^:]+:guest_/) {
  707:             $filecounts->{'withpass'} ++;
  708:         }
  709:     }
  710:     $filecounts->{'both'} =  $filecounts->{'withoutpass'} +
  711:                               $filecounts->{'withpass'};
  712:     my $output;
  713:     if ($mode eq 'listfiles') {
  714:         if ($filecounts->{'both'} > 0) {
  715:             $output = &portfolio_table_start();
  716:             $output .= &parse_directory($r,0,$allfileshash,'',$is_course,
  717:                                         $group);
  718:             $output .= '</table>';
  719:         }
  720:     }
  721:     return $output;
  722: }
  723: 
  724: sub parse_directory {
  725:     my ($r,$depth,$currhash,$path,$is_course,$group) = @_;
  726:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  727:     $depth++;
  728:     my $output;
  729: 
  730:     my $portfolio_root = &Apache::portfolio::get_portfolio_root($cdom,$cnum,
  731:                                                                 $group);
  732:     my $getpropath = 1;
  733:     my %dirlist = map {
  734: 	    ((split('&',$_,2))[0],1)
  735: 	} &Apache::lonnet::dirlist($portfolio_root.$path,$cdom,$cnum,$getpropath);
  736:     foreach my $item (sort(keys(%{$currhash}))) {
  737:         $output .= &portfolio_row_start();
  738:         $output .= '<td style="padding-left: '.($depth*25).'px">';
  739:         if (ref($currhash->{$item}) eq 'HASH') {
  740:             my $title=&HTML::Entities::encode($item,'<>&"');
  741:             $output .= '<img src="'.&Apache::loncommon::lonhttpdurl("/adm/lonIcons/navmap.folder.open.gif").'" alt="'.&mt('Folder').' '.$title.'" class="LC_icon" />&nbsp;'.$title;
  742: 	    $output .= '</td><td></td></tr>';
  743:             $output .= &parse_directory($r,$depth,$currhash->{$item},
  744: 					$path.'/'.$item,$is_course,$group);
  745:         } else {
  746: 	    my $file_name; 
  747: 	    if ($currhash->{$item} =~ m|/([^/]+)$|) {
  748: 		$file_name = $1;
  749: 	    } else {
  750: 		$file_name = $currhash->{$item};
  751: 	    }
  752: 	    my $have_meta = exists($dirlist{$file_name.'.meta'});
  753:             my $url;
  754:             if ($is_course) {
  755:                 $url = '/uploaded/'.$cdom.'/'.$cnum.'/groups/'.$group.
  756:                        '/portfolio/'.$currhash->{$item};
  757:             } else { 
  758: 	        $url = '/uploaded/'.$cdom.'/'.$cnum.'/portfolio/'.
  759: 		       $currhash->{$item};
  760:             }
  761:             my $showname;
  762: 	    if ($have_meta) {
  763: 		$showname = &Apache::lonnet::metadata($url,'title');
  764: 	    }
  765: 	    if ($showname eq '') {
  766: 		$showname = $file_name;
  767: 	    } else {
  768: 		$showname = $file_name.' ('.$showname.')';
  769: 	    }
  770: 
  771:             $showname=&HTML::Entities::encode($showname,'<>&"');
  772:             $output .= '<a href="'.$url.'">'.
  773: 		'<img alt="" src="'.&Apache::loncommon::icon($currhash->{$item}).'" class="LC_icon" />'.
  774: 		'&nbsp;'.$showname.'</a>';
  775: 	    $output.='</td><td>';
  776: 	    if ($have_meta) {
  777: 		$output.= '<a href="'.$url.'.meta"><img alt="'.&mt('Metadata').'" src="'.
  778: 		&Apache::loncommon::lonhttpdurl('/res/adm/pages/catalog.gif').
  779: 		'" class="LC_icon" /></a>';
  780: 	    }
  781: 	    $output .= '</td></tr>';
  782:         }
  783:     }
  784:     return $output;
  785: }
  786: 
  787: sub aboutme_access {
  788:     my ($uname,$udom) = @_;
  789:     my $privcheck = $env{'request.course.id'};
  790:     my $sec;
  791:     if ($env{'request.course.sec'} ne '') {
  792:         $sec = $env{'request.course.sec'};
  793:         $privcheck .= '/'.$sec;
  794:     }
  795:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  796:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
  797:     if (($cdom eq '') || ($cnum eq '')) {
  798:         my %coursehash = &coursedescription($env{'request.course.id'});
  799:         $cdom = $coursehash{'domain'};
  800:         $cnum = $coursehash{'cnum'};
  801:     }
  802:     if ((&Apache::lonnet::allowed('srm',$privcheck)) || 
  803:         (&Apache::lonnet::allowed('dff',$privcheck))) {
  804:         if (&in_course($uname,$udom,$cnum,$cdom)) {
  805:             return 1;
  806:         }
  807:     }
  808:     return;
  809: }
  810: 
  811: 1;
  812: __END__

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