File:  [LON-CAPA] / loncom / interface / lonaboutme.pm
Revision 1.130: download - view: text, annotated - select for diffs
Tue May 12 14:46:59 2009 UTC (15 years ago) by bisitz
Branches: MAIN
CVS tags: HEAD
Consistent wording: Personal Information Page

    1: # The LearningOnline Network
    2: # Personal Information Page
    3: #
    4: # $Id: lonaboutme.pm,v 1.130 2009/05/12 14:46:59 bisitz 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 personal information page available').'}}\\\\\\\\');
  122:                 } else {
  123:                     $r->print(&Apache::loncommon::start_page("Personal Information Page"));
  124:                     $r->print('<h2>'.&mt('No user personal information 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 personal information page functionality for this specific user.').'</li>'.
  127:                               '<li>'.&mt('The domain has been configured to disable, by default, personal information page functionality for all users in the domain.').'</li>'.
  128:                               '</ul>');
  129:                     $r->print(&Apache::loncommon::end_page());
  130:                 }
  131:                 return OK;
  132:             }
  133:         }
  134:     }
  135: 
  136: # --------------------------------------------------------- The syllabus fields
  137:     my %syllabusfields=&Apache::lonlocal::texthash(
  138:        'aaa_contactinfo'   => 'Contact Information',
  139:        'bbb_aboutme'       => 'Personal Information',
  140:        'ccc_webreferences' => 'Web References');
  141: 
  142: # ------------------------------------------------------------ Get Query String
  143:     &Apache::loncommon::get_unprocessed_cgi($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:             $r->print('<h2>'.&mt('Group Portfolio').'</h2>');
  183:             &print_portfiles_link($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 = $env{'form.register'};
  196:     }
  197: 
  198: #------------Get rights
  199: 	my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
  200:  	my %syllabus=&Apache::lonnet::dump('aboutme',$cdom,$cnum);
  201:     my $allowed=0;
  202:   	my $privleged=$allowed=(($env{'user.name'} eq $cnum) &&
  203: 			       ($env{'user.domain'} eq $cdom));
  204:     if ($forcestudent or $target eq 'tex') { $allowed=0; }
  205: 
  206: 
  207: # --------------------------------------- There is such a user, get environment
  208: 
  209:     if ($target ne 'tex') {
  210: 	my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
  211:         my $args = {'function' => $forcestudent,
  212:                     'domain'   => $cdom,
  213:                     'force_register' => $forceregister};
  214:         if ($env{'form.popup'}) {
  215:             $args->{'no_nav_bar'} = 1;
  216:         }
  217: 	$args->{'bread_crumbs'} = [{href=>"/adm/fhwfdev/$cnum/aboutme",text=>"Personal Information Page"}];
  218: 	my $start_page = &Apache::loncommon::start_page('Personal Information Page',$rss_link,$args);
  219: 	$r->print($start_page);
  220: 
  221:         #Print Privacy Note
  222:         if ($allowed) {
  223:             $r->print('<div class="LC_info">'
  224:                     .'<b>'.&mt('Privacy Note:').'</b> '
  225:                     .&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.')
  226:                     .'</div>'
  227:            );
  228: 	}
  229: 
  230: #Print last modified
  231: 
  232: 	my $lastmod;
  233:         if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
  234:         $lastmod=$syllabus{'uploaded.lastmodified'};
  235:         $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
  236: 	$r->print('<div class="LC_info">');
  237:  	$r->print(&mt('Last updated').': '.$lastmod . '');
  238: 	$r->print('</div>');
  239:     }
  240: }
  241: #Print Help Text
  242: 	if ($target ne 'tex') {
  243: 		if($allowed){
  244: 			$r->print(&Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')));
  245: 		}
  246: 	}
  247: 
  248: #----------------Print Functions
  249: 	if ($target ne 'tex') {
  250: 		 $r->print(&Apache::lontemplate::start_functionslist());
  251:       		if ($allowed) {
  252: 			 my $query_string = &build_query_string({'forcestudent' => '1','popup' => $env{'form.popup'}});
  253:                         $r->print(&Apache::lontemplate::item_functionslist(
  254:                             '<a href="'.$r->uri.$query_string.'">'.&mt('Show Public View').'</a>'
  255:                            .&Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView')));
  256:     		}elsif($privleged){
  257: 			my $query_string = &build_query_string({'forceedit' => '1','popup' => $env{'form.popup'}});
  258:                         $r->print(&Apache::lontemplate::item_functionslist(
  259:                             '<a href="'.$r->uri.$query_string.'">'. &mt('Edit').'</a>'));
  260: 		}
  261:                 $r->print(&Apache::lontemplate::item_functionslist(
  262:                     &Apache::lontemplate::send_message($r,$cnum,$cdom)));
  263: 
  264: 		if ($env{'request.course.id'} && &Apache::lonnet::allowed('srm',$env{'request.course.id'}) && &in_course($cdom,$cnum)) {
  265: 			if (&Apache::lonnet::allowed('vsa', $env{'request.course.id'}) || &Apache::lonnet::allowed('vsa', $env{'request.course.id'}.'/'.
  266: 					 $env{'request.course.sec'})) {
  267:                             $r->print(&Apache::lontemplate::item_functionslist(
  268:                                 &Apache::loncommon::track_student_link('View recent activity by this student',$cnum,$cdom)));
  269: 	    		}
  270:                         if (&Apache::lonnet::allowed('vgr', $env{'request.course.id'}) ||
  271:                             &Apache::lonnet::allowed('vgr', $env{'request.course.id'}.'/'.
  272:                                                      $env{'request.course.sec'})) {
  273:                             $r->print(&Apache::lontemplate::item_functionslist(
  274:                                 &Apache::loncommon::slot_reservations_link('Slot reservation history',$cnum,$cdom)));
  275:                         }
  276:                         $r->print(&Apache::lontemplate::item_functionslist(
  277:                             &Apache::loncommon::noteswrapper(&mt('Add Records'),$cnum,$cdom)));
  278: 		}
  279:         $r->print(&Apache::lontemplate::end_functionslist());
  280: 	}
  281: #------Print Headtitle
  282:  	if ($target ne 'tex') {
  283: 		$r->print('<div class="LC_ContentBoxSpecial">');
  284: 		$r->print('<h2 class="LC_hcell">'.&Apache::loncommon::plainname($cnum,$cdom).'</h2>');
  285: 		$r->print('<div class="LC_BoxPadding">' );
  286: 	 	if ($courseenv{'nickname'}) {
  287:       	 	$r->print('<h2>&quot;'.$courseenv{'nickname'}.'&quot;</h2>');
  288:     	}
  289: 		$r->print('<h3>'.&Apache::lonnet::domain($cdom,'description').'</h3>');
  290:  	}
  291: 	else {
  292: 		$r->print('\noindent{\large\textbf{'.&Apache::loncommon::plainname($cnum,$cdom).'}}\\\\\\\\');
  293: 		$r->print('\textbf{'.&Apache::lonnet::domain($cdom,'description').'}\\\\');
  294: 	}
  295: # does this user have privileges to post, etc?
  296: 
  297: 
  298: 	my $query_string;
  299: 
  300:       if (($env{'form.uploaddoc.filename'}) &&
  301:           ($env{'form.storeupl'}) && ($allowed)) {
  302:  	  if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
  303: 	      if ($syllabus{'uploaded.photourl'}) {
  304: 		  &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  305: 	      }
  306: 	      $syllabus{'uploaded.photourl'}=
  307:                  &Apache::lonnet::userphotoupload('uploaddoc','aboutme');
  308:  	  }
  309:           $syllabus{'uploaded.lastmodified'}=time;
  310:           &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  311:        }
  312:     if ($allowed && $env{'form.delupl'}) {
  313: 	if ($syllabus{'uploaded.photourl'}) {
  314: 	    &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  315: 	    delete($syllabus{'uploaded.photourl'});
  316: 	    &Apache::lonnet::del('aboutme',['uploaded.photourl'],$cdom,$cnum);
  317: 	}
  318:     }
  319:        if (($allowed) && ($env{'form.storesyl'})) {
  320: 	   foreach my $syl_field (keys(%syllabusfields)) {
  321:                my $field=$env{'form.'.$syl_field};
  322:                $field=~s/\s+$//s;
  323:                $field=&Apache::lonfeedback::clear_out_html($field,
  324:                                                            $env{'user.adv'});
  325: 	       $syllabus{$syl_field}=$field;
  326:            }
  327:            $syllabus{'uploaded.lastmodified'}=time;
  328:            &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  329:        }
  330: 
  331: my $image;
  332: # ---------------------------------------------------------------- Get syllabus
  333:     if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
  334:        if ($syllabus{'uploaded.photourl'}) {
  335: 	   &Apache::lonnet::allowuploaded('/adm/aboutme',
  336: 					  $syllabus{'uploaded.photourl'});
  337: 
  338:            #This call is to resize all "Personal Information" images in the LonCapa System. When its done, you can remove this line.
  339: 	   &Apache::lonnet::resizeImage(&Apache::lonnet::filelocation('',$syllabus{'uploaded.photourl'}));
  340: 	   #---End Resize---
  341: 
  342: 	   $image=qq{<img name="userPhoto" src="$syllabus{'uploaded.photourl'} " class="LC_AboutMe_Image" />};
  343: 
  344: 	   if ($target eq 'tex') {
  345: 	       $image=&Apache::lonxml::xmlparse($r,'tex',$image);
  346: 	   }
  347: 
  348:        }
  349: 
  350:        if ($allowed) {
  351:            $r->print(
  352: 	 '<form method="post" enctype="multipart/form-data">'.
  353:          '<h3>'.&mt('Upload a Photo').'</h3>'.
  354:          '<input type="file" name="uploaddoc" size="50" />'.
  355:          '<input type="submit" name="storeupl" value="'.&mt('Upload').'" />'.
  356:          '<input type="hidden" name="popup" value="'.$env{'form.popup'}.'" />'.
  357: 	 '</form>');
  358: 	      if ($syllabus{'uploaded.photourl'}) {
  359:               $r->print('<form method="post"><input type="submit" name="delupl" value="'.&mt('Delete Photo').'" /> </form>')
  360:           }
  361:           $r->print('<p>');
  362:        }
  363: 
  364: 	if($allowed) {
  365: 		$r->print('<form method="post">');
  366: 	}
  367: 
  368: 	 if($target ne 'tex') #print Image
  369:      	 {
  370: 		&Apache::lontemplate::start_ContentBox($r);
  371: 		&Apache::lontemplate::end_ContentBox($r);
  372: 		$r->print($image);
  373: 
  374: 	}#End Print Image
  375: 
  376: 	#Print Content eg. Contactinfo aboutme,...
  377: 	&Apache::lontemplate::print_aboutme_content_template($r,$allowed,$target,\%syllabusfields,\%syllabus);
  378:         #End Print Content
  379: 
  380:        if($target ne 'tex') { #Begin Print RSS and portfiles
  381: 		&print_portfiles_link($r,$is_course);
  382: 		if (&Apache::lonrss::advertisefeeds($cnum,$cdom) ne '') {
  383: 			&Apache::lontemplate::print_start_template($r,'RSS Feeds and Blogs','LC_ContentBoxSpecial');
  384: 			$r->print(&Apache::lonrss::advertisefeeds($cnum,$cdom));
  385: 			&Apache::lontemplate::print_end_template($r);
  386: 		}
  387: 
  388:        } #End  Print RSS and portfiles
  389: 
  390: 
  391:        if ($allowed) {
  392:            if ($env{'form.popup'}) {
  393:                $r->print('<input type="hidden" name="popup" value="'.
  394:                          $env{'form.popup'}.'" />');
  395:            }
  396: 	   $r->print('</form>');
  397:        }
  398:        if ($target ne 'tex') {$r->print('<br />');} else {$r->print('\\\\');}
  399:     } else {
  400:        $r->print('<p>'.&mt('No personal information provided').'.</p>');
  401:     }
  402: 
  403:     if ($env{'request.course.id'}
  404: 	&& &Apache::lonnet::allowed('srm',$env{'request.course.id'})
  405: 	&& &in_course($cdom,$cnum)) {
  406: 	if ($target ne 'tex') {
  407: 	   $r->print('<a name="coursecomment" />');
  408: 	   &Apache::lontemplate::print_start_template($r,&mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course'),'LC_ContentBoxSpecial');
  409: 	   $r->print('<span class="LC_info">');
  410: 	   $r->print(&mt('Shared by course faculty and staff').&Apache::loncommon::help_open_topic("Course_Face_To_Face_Records,Course_Critical_Message"));
  411: 		$r->print('</span> <p>');
  412:            &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  413: 	   $r->print('</p>');
  414: 	   &Apache::lontemplate::print_end_template($r);
  415: 
  416: 	} else {
  417: 	    $r->print('\\\\\textbf{'.&mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'}\\\\'.&mt('Shared by course faculty and staff').'\\\\\\\\');
  418: 	    &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  419: 	}
  420:     }
  421:     if ($target ne 'tex') {
  422: 	$r->print('</div>');
  423:     	$r->print('</div>');
  424:         if ($env{'form.popup'}) {
  425:             $r->print('<p><a href="javascript:window.close()">'.&mt('Close window').'</a>');
  426:         }
  427: 	$r->print(&Apache::loncommon::end_page());
  428:     } else {
  429: 	$r->print('\end{document}');
  430:     }
  431: 
  432: 
  433: 
  434:     return OK;
  435: }
  436: 
  437: sub in_course {
  438:     my ($udom,$uname,$cdom,$cnum,$type) = @_;
  439:     $type ||= 'any';
  440:     if (!defined($cdom) || !defined($cnum)) {
  441: 	my $cid  = $env{'request.course.id'};
  442: 	$cdom = $env{'course.'.$cid.'.domain'};
  443: 	$cnum = $env{'course.'.$cid.'.num'};
  444:     }
  445:     my %roles = &Apache::lonnet::dump('roles',$udom,$uname);
  446:     my @course_roles = grep(m{^/\Q$cdom\E/\Q$cnum\E[/_]}, keys(%roles));
  447:     return 0 if (!@course_roles);
  448:     return 1 if ($type eq 'any');
  449:     my $now = time();
  450:     foreach my $role (@course_roles) {
  451: 	my (undef,$role_end,$role_start)=split(/\_/,$roles{$role});
  452: 	my $status = 'active';
  453: 	if ($role_start > 0 && $now < $role_start) {
  454: 	    $status = 'future';
  455: 	}
  456: 	if ($role_end > 0 && $now > $role_end) {
  457: 	    $status = 'previous';
  458: 	}
  459: 	return 1 if ($status eq $type);
  460:     }
  461:     return 0;
  462: }
  463: 
  464: sub aboutme_info {
  465:     my ($r,$is_course) = @_;
  466:     my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
  467:     my $name;
  468:     if (!$is_course) {
  469:         $name = &Apache::loncommon::plainname($cnum,$cdom);
  470:     }
  471:     return ($cdom,$cnum,$name);
  472: }
  473: 
  474: sub print_portfiles_link {
  475:     my ($r,$is_course) = @_;
  476:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  477:     my $filecounts = &portfolio_files($r,'showlink',undef,$is_course,
  478:                                       $cdom,$cnum,$name);
  479:     my $query_string = &build_query_string();
  480:     my $output;
  481:     my %lt = &Apache::lonlocal::texthash(
  482:         'vpfi' => 'Viewable portfolio files',
  483:         'vgpf' => 'Viewable group portfolio files',
  484:         'difl' => 'Display file listing',
  485:     );
  486:     if ($filecounts->{'both'} > 0) {
  487: 	$output = '<div class="LC_ContentBoxSpecial"><h4 class="LC_hcell">';
  488: 	$output .= ($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4><div class="LC_BoxPadding">';
  489: 
  490: 	#$output = '<h4>'.($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  491:         $output .= '<a href="/adm/'.$cdom.'/'.$cnum.'/aboutme/portfolio'.
  492:                    $query_string.'">'.$lt{'difl'}.
  493:                    '</a><br /><br />';
  494:         if ($filecounts->{'both'} == 1) {
  495:             if ($is_course) {
  496:                 $output .= &mt('One group portfolio file is available.').'<ul>';
  497:             } else {
  498:                 $output .= &mt('One portfolio file owned by [_1] is available.',$name).'<ul>';
  499:             }
  500:         } else {
  501:             if ($is_course) {
  502:                 $output .= &mt('A total of [_1] group portfolio files are available.',$filecounts->{'both'}).'<ul>';
  503:             } else {
  504:                 $output .= &mt('A total of [_1] portfolio files owned by [_2] are available.',$filecounts->{'both'},$name).'<ul>';
  505:             }
  506:         }
  507:         if ($filecounts->{'withoutpass'}) {
  508: 	    $output .= '<li>'.&mt('[quant,_1,file is,files are] publicly accessible.',$filecounts->{'withoutpass'}).'</li>';
  509:         }
  510:         if ($filecounts->{'withpass'}) {
  511: 	    $output .= '<li>'.&mt('[quant,_1,file requires,files require] a passphrase for access.',$filecounts->{'withpass'}).'</li>';
  512:         }
  513:         $output .= '</ul>';
  514: 	$output .='</p>';
  515: 	$output .='</div></div>';
  516:     }
  517:     $r->print($output);
  518:     return;
  519: }
  520: 
  521: sub build_query_string {
  522:     my ($new_items) = @_;
  523:     my $query_string;
  524:     my @formelements = ('register');
  525:     my $new = 0;
  526:     if (ref($new_items) eq 'HASH') {
  527:         $new = 1;
  528:         if (!defined($new_items->{'forceedit'}) &&
  529:             !defined($new_items->{'forcestudent'})) {
  530:             push(@formelements,('forceedit','forcestudent'));
  531:         }
  532:     } else {
  533:         push(@formelements,('forceedit','forcestudent'));
  534:     }
  535:     foreach my $element (@formelements) {
  536:         if (exists($env{'form.'.$element})) {
  537:             if ((!$new) || (!defined($new_items->{$element}))) {
  538:                 $query_string .= '&amp;'.$element.'='.$env{'form.'.$element};
  539:             }
  540:         }
  541:     }
  542:     if ($new) {
  543:         foreach my $key (keys(%{$new_items})) {
  544:             $query_string .= '&amp;'.$key.'='.$new_items->{$key};
  545:         }
  546:     }
  547:     $query_string =~ s/^\&amp;/\?/;
  548:     return $query_string;
  549: }
  550: 
  551: sub display_portfolio_header {
  552:     my ($r,$is_course) = @_;
  553:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  554:     my $query_string = &build_query_string();
  555:     &Apache::lonhtmlcommon::clear_breadcrumbs();
  556:     my $forcestudent='';
  557:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  558: 
  559:     my $output;
  560:     if ($is_course) {
  561:         $output =
  562:             &Apache::loncommon::start_page('Viewable group portfolio files',undef,
  563:                                             {'function' => $forcestudent,
  564:                                              'domain'   => $cdom,});
  565:         $output .= '<h3>'.&mt('Group Portfolio files').'</h3>';
  566:     } else {
  567:         $output  =
  568:             &Apache::loncommon::start_page('Viewable portfolio files',undef,
  569:                                             {'function' => $forcestudent,
  570:                                              'domain'   => $cdom,});
  571:         if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  572:             &Apache::lonhtmlcommon::add_breadcrumb
  573:                 ({href=>"/adm/$cdom/$cnum/aboutme".$query_string,
  574:                   text=>&mt('Personal Information Page - [_1]',$name),
  575:                   title=>&mt('Go to personal information page for [_1]', $name)},
  576: 		 {href=>"/adm/$cdom/$cnum/aboutme/portfolio",
  577:                   text=>&mt('Viewable files - [_1]', $name),
  578:                   title=>&mt('Viewable portfolio files for [_1]', $name)}
  579:             );
  580:             $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('Viewable portfolio files.'));
  581:         }
  582:         $output .= '<h3>'.&mt('Portfolio files for [_1]',$name).'</h3>';
  583:     }
  584:     $r->print($output);
  585:     return;
  586: }
  587: 
  588: sub display_portfolio_files {
  589:     my ($r,$is_course) = @_;
  590:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  591:     my %lt = &Apache::lonlocal::texthash(
  592:         'withoutpass' => 'passphrase not required',
  593:         'withpass'    => 'passphrase protected',
  594:         'both'        => 'all access types ',
  595:     );
  596: 
  597:     my $portaccess = 'withoutpass';
  598:     if (exists($env{'form.portaccess'})) {
  599:         $portaccess = $env{'form.portaccess'};
  600:     }
  601: 
  602:     my $output = '<form action="'.&HTML::Entities::encode($r->uri,'<>&"')
  603: 	.'" name="displaystatus" method="post">'.
  604: 	&mt('File access type: ').'<select name="portaccess">';
  605:     foreach my $type ('withoutpass','withpass','both') {
  606:         $output .= '<option value="'.$type.'" ';
  607:         if ($portaccess eq $type) {
  608:             $output .= 'selected="selected"';
  609:         }
  610:         $output .= '>'.$lt{$type}.'</option>';
  611:     }
  612:     $output .= '</select>'."\n".
  613:                '<input type="submit" name="portaccessbutton" value="'.
  614:                &mt('Update display').'" />';
  615:     $output .= '</form><br /><br />';
  616:     $r->print($output);
  617:     my $filecounts = &portfolio_files($r,'listfiles',\%lt,$is_course,
  618:                                       $cdom,$cnum,$name);
  619:     if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  620:         my $query_string = &build_query_string();
  621:         $r->print('<br /><br /><a href="/adm/'.$cdom.'/'.$cnum.
  622:                   '/aboutme'.$query_string.'">');
  623:         if ($is_course) {
  624:             $r->print(&mt('Course Information page'));
  625:         } else {
  626:             $r->print(&mt('Information about [_1]',$name));
  627:         }
  628:         $r->print('</a>');
  629:     }
  630:     return;
  631: }
  632: 
  633: sub portfolio_files {
  634:     my ($r,$mode,$lt,$is_course,$cdom,$cnum,$name) = @_;
  635:     my $filecounts = {
  636:                        withpass    => 0,
  637:                        withoutpass => 0,
  638:                        both        => 0,
  639:                      };
  640:     my $current_permissions =
  641: 	&Apache::lonnet::get_portfile_permissions($cdom,$cnum);
  642:     my %access_controls =
  643: 	&Apache::lonnet::get_access_controls($current_permissions);
  644:     my $portaccess;
  645:     if ($mode eq 'showlink') {
  646:         $portaccess = 'both';
  647:     } else {
  648:         $portaccess = 'withoutpass';
  649:         if (exists($env{'form.portaccess'})) {
  650:             $portaccess = $env{'form.portaccess'};
  651:         }
  652:     }
  653: 
  654:     my $diroutput;
  655:     if ($is_course) {
  656:         my %files_by_group;
  657:         foreach my $filename (sort(keys(%access_controls))) {
  658:             my ($group,$path) = split('/',$filename,2);
  659:             $files_by_group{$group}{$path} = $access_controls{$filename};
  660:         }
  661:         foreach my $group (sort(keys(%files_by_group))) {
  662:             my %fileshash;
  663:             my $grpout .= &build_hierarchy($r,$cdom,$cnum,$portaccess,
  664:                                            $is_course,$filecounts,$mode,
  665:                                            $files_by_group{$group},
  666:                                            \%fileshash,$group);
  667:             if ($grpout) {
  668:                 $diroutput .= '<h3>'.$group.'</h3>'.$grpout.'<br />';
  669:             }
  670:         }
  671:     } else {
  672:         my %allfileshash;
  673:         $diroutput = &build_hierarchy($r,$cdom,$cnum,$portaccess,$is_course,
  674:                                       $filecounts,$mode,\%access_controls,
  675:                                       \%allfileshash);
  676:     }
  677:     if ($mode eq 'listfiles') {
  678:         if ($filecounts->{'both'}) {
  679:              $r->print($diroutput);
  680:         } else {
  681:             my $access_text;
  682:             if (ref($lt) eq 'HASH') {
  683:                 $access_text = $lt->{$portaccess};
  684:             }
  685:             $r->print(&mt('There are no available files of the specified access type: [_1]',$access_text));
  686:         }
  687:     }
  688:     return $filecounts;
  689: }
  690: 
  691: sub build_hierarchy {
  692:     my ($r,$cdom,$cnum,$portaccess,$is_course,$filecounts,$mode,$access_info,
  693:         $allfileshash,$group) = @_;
  694:     foreach my $filename (sort(keys(%{$access_info}))) {
  695:         my $access_status =
  696:            &Apache::lonnet::get_portfolio_access($cdom,$cnum,$filename,$group,                                                 $$access_info{$filename});
  697:         if ($portaccess eq 'both') {
  698:             if (($access_status ne 'ok') &&
  699:                 ($access_status !~  /^[^:]+:guest_/)) {
  700:                 next;
  701:             }
  702:         } elsif ($portaccess eq 'withoutpass') {
  703:             if ($access_status ne 'ok') {
  704:                 next;
  705:             }
  706:         } elsif ($portaccess eq 'withpass') {
  707:             if ($access_status !~  /^[^:]+:guest_/) {
  708:                 next;
  709:             }
  710:         }
  711:         if ($mode eq 'listfiles') {
  712:             $filename =~ s/^\///;
  713:             my @pathitems = split('/',$filename);
  714:             my $lasthash = $allfileshash;
  715:             while (@pathitems > 1) {
  716:                 my $newlevel = shift(@pathitems);
  717:                 if (!exists($lasthash->{$newlevel})) {
  718:                     $lasthash->{$newlevel} = {};
  719:                 }
  720:                 $lasthash = $lasthash->{$newlevel};
  721:             }
  722:             $lasthash->{$pathitems[0]} = $filename;
  723:         }
  724:         if ($access_status eq 'ok') {
  725:             $filecounts->{'withoutpass'} ++;
  726:         } elsif ($access_status =~  /^[^:]+:guest_/) {
  727:             $filecounts->{'withpass'} ++;
  728:         }
  729:     }
  730:     $filecounts->{'both'} =  $filecounts->{'withoutpass'} +
  731:                               $filecounts->{'withpass'};
  732:     my $output;
  733:     if ($mode eq 'listfiles') {
  734:         if ($filecounts->{'both'} > 0) {
  735:             $output = &Apache::loncommon::start_data_table();
  736:             $output .= &parse_directory($r,0,$allfileshash,'',$is_course,
  737:                                         $group);
  738:             $output .= &Apache::loncommon::end_data_table();
  739:         }
  740:     }
  741:     return $output;
  742: }
  743: 
  744: sub parse_directory {
  745:     my ($r,$depth,$currhash,$path,$is_course,$group) = @_;
  746:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  747:     $depth++;
  748:     my $output;
  749: 
  750:     my $portfolio_root = &Apache::portfolio::get_portfolio_root($cdom,$cnum,
  751:                                                                 $group);
  752:     my $getpropath = 1;
  753:     my %dirlist = map {
  754: 	    ((split('&',$_,2))[0],1)
  755: 	} &Apache::lonnet::dirlist($portfolio_root.$path,$cdom,$cnum,$getpropath);
  756:     foreach my $item (sort(keys(%{$currhash}))) {
  757:         $output .= &Apache::loncommon::start_data_table_row();
  758:         $output .= '<td style="padding-left: '.($depth*25).'px">';
  759:         if (ref($currhash->{$item}) eq 'HASH') {
  760:             my $title=&HTML::Entities::encode($item,'<>&"');
  761:             $output .= '<img src="'.&Apache::loncommon::lonhttpdurl("/adm/lonIcons/navmap.folder.open.gif").'" alt="'.&mt('Folder').' '.$title.'" class="LC_icon" />&nbsp;'.$title;
  762: 	    $output .= '</td><td>&nbsp;</td>'
  763:                       .&Apache::loncommon::end_data_table_row();
  764:             $output .= &parse_directory($r,$depth,$currhash->{$item},
  765: 					$path.'/'.$item,$is_course,$group);
  766:         } else {
  767: 	    my $file_name;
  768: 	    if ($currhash->{$item} =~ m|/([^/]+)$|) {
  769: 		$file_name = $1;
  770: 	    } else {
  771: 		$file_name = $currhash->{$item};
  772: 	    }
  773: 	    my $have_meta = exists($dirlist{$file_name.'.meta'});
  774:             my $url;
  775:             if ($is_course) {
  776:                 $url = '/uploaded/'.$cdom.'/'.$cnum.'/groups/'.$group.
  777:                        '/portfolio/'.$currhash->{$item};
  778:             } else {
  779: 	        $url = '/uploaded/'.$cdom.'/'.$cnum.'/portfolio/'.
  780: 		       $currhash->{$item};
  781:             }
  782:             my $showname;
  783: 	    if ($have_meta) {
  784: 		$showname = &Apache::lonnet::metadata($url,'title');
  785: 	    }
  786: 	    if ($showname eq '') {
  787: 		$showname = $file_name;
  788: 	    } else {
  789: 		$showname = $file_name.' ('.$showname.')';
  790: 	    }
  791: 
  792:             $showname=&HTML::Entities::encode($showname,'<>&"');
  793:             $output .= '<a href="'.$url.'">'.
  794: 		'<img alt="" src="'.&Apache::loncommon::icon($currhash->{$item}).'" class="LC_icon" />'.
  795: 		'&nbsp;'.$showname.'</a>';
  796: 	    $output.='</td><td>';
  797: 	    if ($have_meta) {
  798: 		$output.= '<a href="'.$url.'.meta"><img alt="'.&mt('Metadata').'" src="'.
  799: 		&Apache::loncommon::lonhttpdurl('/res/adm/pages/catalog.gif').
  800: 		'" class="LC_icon" /></a>';
  801: 	    }
  802: 	    $output .= '</td>'
  803:                       .&Apache::loncommon::end_data_table_row();
  804:         }
  805:     }
  806:     return $output;
  807: }
  808: 
  809: sub aboutme_access {
  810:     my ($uname,$udom) = @_;
  811:     my $privcheck = $env{'request.course.id'};
  812:     my $sec;
  813:     if ($env{'request.course.sec'} ne '') {
  814:         $sec = $env{'request.course.sec'};
  815:         $privcheck .= '/'.$sec;
  816:     }
  817:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  818:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
  819:     if (($cdom eq '') || ($cnum eq '')) {
  820:         my %coursehash = &coursedescription($env{'request.course.id'});
  821:         $cdom = $coursehash{'domain'};
  822:         $cnum = $coursehash{'cnum'};
  823:     }
  824:     if ((&Apache::lonnet::allowed('srm',$privcheck)) ||
  825:         (&Apache::lonnet::allowed('dff',$privcheck))) {
  826:         if (&in_course($uname,$udom,$cnum,$cdom)) {
  827:             return 1;
  828:         }
  829:     }
  830:     return;
  831: }
  832: 
  833: 1;
  834: __END__

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