File:  [LON-CAPA] / loncom / interface / lonaboutme.pm
Revision 1.145: download - view: text, annotated - select for diffs
Thu Mar 18 08:56:00 2010 UTC (14 years, 2 months ago) by wenzelju
Branches: MAIN
CVS tags: HEAD
- Inserted a <div class="LC_clear_float_footer"> to clear the image. Otherwise it overlaps with the following lines.

    1: # The LearningOnline Network
    2: # Personal Information Page
    3: #
    4: # $Id: lonaboutme.pm,v 1.145 2010/03/18 08:56:00 wenzelju 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=>"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') { $allowed=0; }
  205: 
  206: # --------------------------------------- There is such a user, get environment
  207: 
  208:     if ($target ne 'tex') {
  209:         my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
  210:         my $args = {'function' => undef,
  211:                     'domain'   => $cdom,
  212: # if this page is part of course content it looses the menu line when switching from Edit Mode to Public Mode. To avoid
  213: #this, I take take the value of the environment Variable $env{form.register}
  214: #                    'force_register' => $forceregister};
  215:                     'force_register' => $env{'form.register'}};
  216: 
  217:         if ($env{'form.popup'}) {
  218:             $args->{'no_nav_bar'} = 1;
  219: 		#Don't show breadcrumbs twice, when this page is part of course content and you call it  
  220: 		} elsif ($env{'form.register'}) {
  221: 			#do nothing
  222:         } else { # Don't show breadcrumbs in popup window
  223:             $args->{'bread_crumbs'} = [{href=>"/adm/$cdom/$cnum/aboutme",text=>"Personal Information Page"}];
  224:         }
  225:         my $start_page = &Apache::loncommon::start_page('Personal Information Page',$rss_link,$args);
  226:         $r->print($start_page);
  227:    }
  228: 
  229: #----------------Print Functions
  230:     if ($target ne 'tex') {
  231:         my $functions=&Apache::lonhtmlcommon::start_funclist();
  232:         if ($allowed) {
  233:             my $query_string = &build_query_string(
  234:                                    {'forcestudent' => '1',
  235:                                     'popup' => $env{'form.popup'}});
  236:             $functions.=&Apache::lonhtmlcommon::add_item_funclist(
  237:                             '<a href="'.$r->uri.$query_string.'">'
  238:                            .&mt('Show Public View').'</a>'
  239:                            .&Apache::loncommon::help_open_topic(
  240:                                 'Uploaded_Templates_PublicView'));
  241:         } elsif ($privleged) {
  242:             my $query_string = &build_query_string(
  243:                                    {'forceedit' => '1',
  244:                                     'popup' => $env{'form.popup'}});
  245:             $functions.=&Apache::lonhtmlcommon::add_item_funclist(
  246:                             '<a href="'.$r->uri.$query_string.'">'
  247:                             .&mt('Edit').'</a>');
  248:         }
  249:         $functions.=&Apache::lonhtmlcommon::add_item_funclist(
  250:                         &Apache::lontemplate::send_message($r,$cnum,$cdom));
  251: 
  252:         if ($env{'request.course.id'} &&
  253:             &Apache::lonnet::allowed('srm',$env{'request.course.id'}) &&
  254:             &in_course($cdom,$cnum)) {
  255:             if (&Apache::lonnet::allowed('vsa', $env{'request.course.id'}) ||
  256:                 &Apache::lonnet::allowed('vsa', $env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
  257:                 $functions.=&Apache::lonhtmlcommon::add_item_funclist(
  258:                      &Apache::loncommon::track_student_link(
  259:                          'View recent activity by this student',$cnum,$cdom));
  260:             }
  261:             if (&Apache::lonnet::allowed('vgr', $env{'request.course.id'}) ||
  262:                 &Apache::lonnet::allowed('vgr', $env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
  263:                 $functions.=&Apache::lonhtmlcommon::add_item_funclist(
  264:                     &Apache::loncommon::slot_reservations_link(
  265:                         'Slot reservation history',$cnum,$cdom));
  266:             }
  267:             $functions.=&Apache::lonhtmlcommon::add_item_funclist(
  268:                            &Apache::loncommon::noteswrapper(
  269:                                &mt('Add Records'),$cnum,$cdom));
  270:         }
  271:         $functions.=&Apache::lonhtmlcommon::end_funclist();
  272:         $r->print(&Apache::loncommon::head_subbox($functions));
  273:     }
  274: 
  275: # Print Privacy Note
  276:     if ($target ne 'tex') {
  277:         #Print Privacy Note
  278:         if ($allowed) {
  279:             $r->print('<div class="LC_info">'
  280:                 .'<b>'.&mt('Privacy Note:').'</b> '
  281:                 .&mt('The information you submit can be viewed by anybody who is logged into LON-CAPA. Do not provide information that you are not ready to share publicly.')
  282:                 .'</div>'
  283:             );
  284:         }
  285:     }
  286: 
  287: #Print last modified
  288: 
  289:     if ($target ne 'tex') {
  290:         my $lastmod;
  291:         if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
  292:             $lastmod=$syllabus{'uploaded.lastmodified'};
  293:             $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
  294:             $r->print('<div class="LC_info">');
  295:              $r->print(&mt('Last updated').': '.$lastmod . '');
  296:             $r->print('</div>');
  297:         }
  298:     }
  299: #Print Help Text
  300:     if ($target ne 'tex') {
  301:         if($allowed){
  302:             $r->print(&Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')));
  303:         }
  304:     }
  305: 
  306: #------Print Headtitle
  307:      if ($target ne 'tex') {
  308:         $r->print('<div class="LC_Box">');
  309:         $r->print('<h2 class="LC_hcell">'.&Apache::loncommon::plainname($cnum,$cdom).'</h2>');
  310:          if ($courseenv{'nickname'}) {
  311:                $r->print('<h2>&quot;'.$courseenv{'nickname'}.'&quot;</h2>');
  312:         }
  313:         $r->print('<h3>'.&Apache::lonnet::domain($cdom,'description').'</h3>');
  314:      } else {
  315:         $r->print('\noindent{\large\textbf{'.&Apache::loncommon::plainname($cnum,$cdom).'}}\\\\\\\\');
  316:         $r->print('\textbf{'.&Apache::lonnet::domain($cdom,'description').'}\\\\');
  317:     }
  318: # does this user have privileges to post, etc?
  319: 
  320: 
  321:     my $query_string;
  322: 
  323:     if (($env{'form.uploaddoc.filename'}) &&
  324:           ($env{'form.storeupl'}) && ($allowed)) {
  325:         if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
  326:             if ($syllabus{'uploaded.photourl'}) {
  327:                 &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  328:             }
  329:             $syllabus{'uploaded.photourl'}=
  330:                 &Apache::lonnet::userfileupload('uploaddoc',undef,'aboutme',
  331:                     undef,undef,undef,undef,undef,undef,undef,'400','500');
  332:          }
  333:         $syllabus{'uploaded.lastmodified'}=time;
  334:         &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  335:     }
  336:     if ($allowed && $env{'form.delupl'}) {
  337:         if ($syllabus{'uploaded.photourl'}) {
  338:             &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  339:             delete($syllabus{'uploaded.photourl'});
  340:             &Apache::lonnet::del('aboutme',['uploaded.photourl'],$cdom,$cnum);
  341:         }
  342:     }
  343:     if (($allowed) && ($env{'form.storesyl'})) {
  344:         foreach my $syl_field (keys(%syllabusfields)) {
  345:             my $field=$env{'form.'.$syl_field};
  346:             $field=~s/\s+$//s;
  347:             $field=&Apache::lonfeedback::clear_out_html($field,$env{'user.adv'});
  348:             $syllabus{$syl_field}=$field;
  349:         }
  350:         $syllabus{'uploaded.lastmodified'}=time;
  351:         &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  352:     }
  353: 
  354:     my $image;
  355: # ---------------------------------------------------------------- Get syllabus
  356:     if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
  357:         if ($syllabus{'uploaded.photourl'}) {
  358:             &Apache::lonnet::allowuploaded('/adm/aboutme',$syllabus{'uploaded.photourl'});
  359: 
  360:             $image=qq|<img name="userPhoto" src="$syllabus{'uploaded.photourl'} " class="LC_AboutMe_Image" alt="Photo of the user" />|;
  361: 
  362:             if ($target eq 'tex') {
  363:                 $image=&Apache::lonxml::xmlparse($r,'tex',$image);
  364:             }
  365:         }
  366: 
  367:         if ($allowed) {
  368:             $r->print(
  369:                 '<form name="UploadPhoto" method="post" enctype="multipart/form-data" action="">'.
  370:                 '<h3>'.&mt('Upload a Photo').'</h3>'.
  371:                 '<p class="LC_info">'.
  372:                 &mt('LON-CAPA will automatically scale your uploaded file so the image will not exceed a width of 400px and a height of 500px.').'</p>'.
  373:                 '<input type="file" name="uploaddoc" size="50" />'.
  374:                 '<input type="submit" name="storeupl" value="'.&mt('Upload').'" />'.
  375:                 '<input type="hidden" name="popup" value="'.$env{'form.popup'}.'" />'.
  376:                 '</form>');
  377:             if ($syllabus{'uploaded.photourl'}) {
  378:                 $r->print('<form name="delPhoto" method="post" action="" ><input type="submit" name="delupl" value="'.&mt('Delete Photo').'" /> </form>')
  379:             }
  380:             $r->print('<p></p>');
  381:         }
  382: 
  383:         if($allowed) {
  384:             $r->print('<form name="lonaboutmeFields" method="post" action="" >');
  385:         }
  386: 
  387:         if ($target ne 'tex') { #print Image
  388:             $r->print($image.'<div class="LC_clear_float_footer"></div>');
  389: 
  390:         } #End Print Image
  391: 
  392:        #Print Content eg. Contactinfo aboutme,...
  393:         &Apache::lontemplate::print_aboutme_content_template($r,$allowed,$target,\%syllabusfields,\%syllabus);
  394:        #End Print Content
  395: 
  396:         if ($target ne 'tex') { #Begin Print RSS and portfiles
  397:             &print_portfiles_link($r,$is_course);
  398:             if (&Apache::lonrss::advertisefeeds($cnum,$cdom) ne '') {
  399:                 &Apache::lontemplate::print_start_template($r,'RSS Feeds and Blogs','LC_Box');
  400:                 $r->print(&Apache::lonrss::advertisefeeds($cnum,$cdom));
  401:                 &Apache::lontemplate::print_end_template($r);
  402:             }
  403: 
  404:         } #End  Print RSS and portfiles
  405: 
  406: 
  407:         if ($allowed) {
  408:             if ($env{'form.popup'}) {
  409:                 $r->print('<input type="hidden" name="popup" value="'.
  410:                     $env{'form.popup'}.'" />');
  411:             }
  412:             $r->print('</form>');
  413:         }
  414:         if ($target ne 'tex') {$r->print('<br />');} else {$r->print('\\\\');}
  415:     } else {
  416:         $r->print('<p>'.&mt('No personal information provided').'.</p>');
  417:     }
  418: 
  419:     if ($env{'request.course.id'}
  420:         && &Apache::lonnet::allowed('srm',$env{'request.course.id'})
  421:         && &in_course($cdom,$cnum)) {
  422:         if ($target ne 'tex') {
  423:             $r->print('<a name="coursecomment" />');
  424:             &Apache::lontemplate::print_start_template($r,&mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course'),'LC_Box');
  425:             $r->print('<span class="LC_info">');
  426:             $r->print(&mt('Shared by course faculty and staff').&Apache::loncommon::help_open_topic("Course_Face_To_Face_Records,Course_Critical_Message"));
  427:             $r->print('</span>');
  428:             &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  429:             &Apache::lontemplate::print_end_template($r);
  430: 
  431:         } else {
  432:             $r->print('\\\\\textbf{'.&mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'}\\\\'.&mt('Shared by course faculty and staff').'\\\\\\\\');
  433:             &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom, 'tex');
  434:         }
  435:     }
  436:     if ($target ne 'tex') {
  437:         $r->print('</div>');
  438:         if ($env{'form.popup'}) {
  439:             $r->print('<p><a href="javascript:window.close()">'.&mt('Close window').'</a>');
  440:         }
  441:         $r->print(&Apache::loncommon::end_page());
  442:     } else {
  443:         $r->print('\end{document}');
  444:     }
  445: 
  446: 
  447: 
  448:     return OK;
  449: }
  450: 
  451: sub in_course {
  452:     my ($udom,$uname,$cdom,$cnum,$type) = @_;
  453:     $type ||= 'any';
  454:     if (!defined($cdom) || !defined($cnum)) {
  455:         my $cid  = $env{'request.course.id'};
  456:         $cdom = $env{'course.'.$cid.'.domain'};
  457:         $cnum = $env{'course.'.$cid.'.num'};
  458:     }
  459:     my %roles = &Apache::lonnet::dump('roles',$udom,$uname);
  460:     my @course_roles = grep(m{^/\Q$cdom\E/\Q$cnum\E[/_]}, keys(%roles));
  461:     return 0 if (!@course_roles);
  462:     return 1 if ($type eq 'any');
  463:     my $now = time();
  464:     foreach my $role (@course_roles) {
  465:         my (undef,$role_end,$role_start)=split(/\_/,$roles{$role});
  466:         my $status = 'active';
  467:         if ($role_start > 0 && $now < $role_start) {
  468:             $status = 'future';
  469:         }
  470:         if ($role_end > 0 && $now > $role_end) {
  471:             $status = 'previous';
  472:         }
  473:         return 1 if ($status eq $type);
  474:     }
  475:     return 0;
  476: }
  477: 
  478: sub aboutme_info {
  479:     my ($r,$is_course) = @_;
  480:     my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
  481:     my $name;
  482:     if (!$is_course) {
  483:         $name = &Apache::loncommon::plainname($cnum,$cdom);
  484:     }
  485:     return ($cdom,$cnum,$name);
  486: }
  487: 
  488: sub print_portfiles_link {
  489:     my ($r,$is_course) = @_;
  490:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  491:     my $filecounts = &portfolio_files($r,'showlink',undef,$is_course,
  492:                                       $cdom,$cnum,$name);
  493:     my $query_string = &build_query_string();
  494:     my $output;
  495:     my %lt = &Apache::lonlocal::texthash(
  496:         'vpfi' => 'Viewable portfolio files',
  497:         'vgpf' => 'Viewable group portfolio files',
  498:         'difl' => 'Display file listing',
  499:     );
  500:     if ($filecounts->{'both'} > 0) {
  501:         $output = '<div class="LC_Box"><h4 class="LC_hcell">';
  502:         $output .= ($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  503: 
  504:        #$output = '<h4>'.($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  505:         $output .= '<a href="/adm/'.$cdom.'/'.$cnum.'/aboutme/portfolio'.
  506:             $query_string.'">'.$lt{'difl'}.
  507:             '</a><br /><br />';
  508:         if ($filecounts->{'both'} == 1) {
  509:             if ($is_course) {
  510:                 $output .= &mt('One group portfolio file is available.').'<ul>';
  511:             } else {
  512:                 $output .= &mt('One portfolio file owned by [_1] is available.',$name).'<ul>';
  513:             }
  514:         } else {
  515:             if ($is_course) {
  516:                 $output .= &mt('A total of [_1] group portfolio files are available.',$filecounts->{'both'}).'<ul>';
  517:             } else {
  518:                 $output .= &mt('A total of [_1] portfolio files owned by [_2] are available.',$filecounts->{'both'},$name).'<ul>';
  519:             }
  520:         }
  521:         if ($filecounts->{'withoutpass'}) {
  522:             $output .= '<li>'.&mt('[quant,_1,file is,files are] publicly accessible.',$filecounts->{'withoutpass'}).'</li>';
  523:         }
  524:         if ($filecounts->{'withpass'}) {
  525:             $output .= '<li>'.&mt('[quant,_1,file requires,files require] a passphrase for access.',$filecounts->{'withpass'}).'</li>';
  526:         }
  527:         $output .= '</ul>';
  528:         $output .= '</div>';
  529:     }
  530:     $r->print($output);
  531:     return;
  532: }
  533: 
  534: sub build_query_string {
  535:     my ($new_items) = @_;
  536:     my $query_string;
  537:     my @formelements = ('register');
  538:     my $new = 0;
  539:     if (ref($new_items) eq 'HASH') {
  540:         $new = 1;
  541:         if (!defined($new_items->{'forceedit'}) &&
  542:             !defined($new_items->{'forcestudent'})) {
  543:             push(@formelements,('forceedit','forcestudent'));
  544:         }
  545:     } else {
  546:         push(@formelements,('forceedit','forcestudent'));
  547:     }
  548:     foreach my $element (@formelements) {
  549:         if (exists($env{'form.'.$element})) {
  550:             if ((!$new) || (!defined($new_items->{$element}))) {
  551:                 $query_string .= '&amp;'.$element.'='.$env{'form.'.$element};
  552:             }
  553:         }
  554:     }
  555:     if ($new) {
  556:         foreach my $key (keys(%{$new_items})) {
  557:             $query_string .= '&amp;'.$key.'='.$new_items->{$key};
  558:         }
  559:     }
  560:     $query_string =~ s/^\&amp;/\?/;
  561:     return $query_string;
  562: }
  563: 
  564: sub display_portfolio_header {
  565:     my ($r,$is_course) = @_;
  566:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  567:     my $query_string = &build_query_string();
  568:     &Apache::lonhtmlcommon::clear_breadcrumbs();
  569:     my $forcestudent='';
  570:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  571: 
  572:     my $output;
  573:     if ($is_course) {
  574:         $output =
  575:             &Apache::loncommon::start_page('Viewable group portfolio files',undef,
  576:                                             {'function' => $forcestudent,
  577:                                              'domain'   => $cdom,});
  578:         $output .= '<h3>'.&mt('Group Portfolio files').'</h3>';
  579:     } else {
  580:         $output  =
  581:             &Apache::loncommon::start_page('Viewable portfolio files',undef,
  582:                                             {'function' => $forcestudent,
  583:                                              'domain'   => $cdom,});
  584:         if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  585:             &Apache::lonhtmlcommon::add_breadcrumb
  586:                 ({href=>"/adm/$cdom/$cnum/aboutme".$query_string,
  587:                   text=>&mt('Personal Information Page - [_1]',$name),
  588:                   title=>&mt('Go to personal information page for [_1]', $name)},
  589:          {href=>"/adm/$cdom/$cnum/aboutme/portfolio",
  590:                   text=>&mt('Viewable files - [_1]', $name),
  591:                   title=>&mt('Viewable portfolio files for [_1]', $name)}
  592:             );
  593:             $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('Viewable portfolio files.'));
  594:         }
  595:         $output .= '<h3>'.&mt('Portfolio files for [_1]',$name).'</h3>';
  596:     }
  597:     $r->print($output);
  598:     return;
  599: }
  600: 
  601: sub display_portfolio_files {
  602:     my ($r,$is_course) = @_;
  603:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  604:     my %lt = &Apache::lonlocal::texthash(
  605:         'withoutpass' => 'passphrase not required',
  606:         'withpass'    => 'passphrase protected',
  607:         'both'        => 'all access types ',
  608:     );
  609: 
  610:     my $portaccess = 'withoutpass';
  611:     if (exists($env{'form.portaccess'})) {
  612:         $portaccess = $env{'form.portaccess'};
  613:     }
  614: 
  615:     my $output = '<form action="'.&HTML::Entities::encode($r->uri,'<>&"')
  616:         .'" name="displaystatus" method="post">'.
  617:         &mt('File access type: ').'<select name="portaccess">';
  618:     foreach my $type ('withoutpass','withpass','both') {
  619:         $output .= '<option value="'.$type.'" ';
  620:         if ($portaccess eq $type) {
  621:             $output .= 'selected="selected"';
  622:         }
  623:         $output .= '>'.$lt{$type}.'</option>';
  624:     }
  625:     $output .= '</select>'."\n".
  626:         '<input type="submit" name="portaccessbutton" value="'.
  627:         &mt('Update display').'" />';
  628:     $output .= '</form><br /><br />';
  629:     $r->print($output);
  630:     my $filecounts = &portfolio_files($r,'listfiles',\%lt,$is_course,
  631:                                       $cdom,$cnum,$name);
  632:     if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  633:         my $query_string = &build_query_string();
  634:         $r->print('<br /><br /><a href="/adm/'.$cdom.'/'.$cnum.
  635:                   '/aboutme'.$query_string.'">');
  636:         if ($is_course) {
  637:             $r->print(&mt('Course Information page'));
  638:         } else {
  639:             $r->print(&mt('Information about [_1]',$name));
  640:         }
  641:         $r->print('</a>');
  642:     }
  643:     return;
  644: }
  645: 
  646: sub portfolio_files {
  647:     my ($r,$mode,$lt,$is_course,$cdom,$cnum,$name) = @_;
  648:     my $filecounts = {
  649:                        withpass    => 0,
  650:                        withoutpass => 0,
  651:                        both        => 0,
  652:                      };
  653:     my $current_permissions =
  654:     &Apache::lonnet::get_portfile_permissions($cdom,$cnum);
  655:     my %access_controls =
  656:     &Apache::lonnet::get_access_controls($current_permissions);
  657:     my $portaccess;
  658:     if ($mode eq 'showlink') {
  659:         $portaccess = 'both';
  660:     } else {
  661:         $portaccess = 'withoutpass';
  662:         if (exists($env{'form.portaccess'})) {
  663:             $portaccess = $env{'form.portaccess'};
  664:         }
  665:     }
  666: 
  667:     my $diroutput;
  668:     if ($is_course) {
  669:         my %files_by_group;
  670:         foreach my $filename (sort(keys(%access_controls))) {
  671:             my ($group,$path) = split('/',$filename,2);
  672:             $files_by_group{$group}{$path} = $access_controls{$filename};
  673:         }
  674:         foreach my $group (sort(keys(%files_by_group))) {
  675:             my %fileshash;
  676:             my $grpout .= &build_hierarchy($r,$cdom,$cnum,$portaccess,
  677:                                            $is_course,$filecounts,$mode,
  678:                                            $files_by_group{$group},
  679:                                            \%fileshash,$group);
  680:             if ($grpout) {
  681:                 $diroutput .= '<h3>'.$group.'</h3>'.$grpout.'<br />';
  682:             }
  683:         }
  684:     } else {
  685:         my %allfileshash;
  686:         $diroutput = &build_hierarchy($r,$cdom,$cnum,$portaccess,$is_course,
  687:                                       $filecounts,$mode,\%access_controls,
  688:                                       \%allfileshash);
  689:     }
  690:     if ($mode eq 'listfiles') {
  691:         if ($filecounts->{'both'}) {
  692:              $r->print($diroutput);
  693:         } else {
  694:             my $access_text;
  695:             if (ref($lt) eq 'HASH') {
  696:                 $access_text = $lt->{$portaccess};
  697:             }
  698:             $r->print(&mt('There are no available files of the specified access type: [_1]',$access_text));
  699:         }
  700:     }
  701:     return $filecounts;
  702: }
  703: 
  704: sub build_hierarchy {
  705:     my ($r,$cdom,$cnum,$portaccess,$is_course,$filecounts,$mode,$access_info,
  706:         $allfileshash,$group) = @_;
  707:     foreach my $filename (sort(keys(%{$access_info}))) {
  708:         my $access_status =
  709:            &Apache::lonnet::get_portfolio_access($cdom,$cnum,$filename,$group,$$access_info{$filename});
  710:         if ($portaccess eq 'both') {
  711:             if (($access_status ne 'ok') &&
  712:                 ($access_status !~  /^[^:]+:guest_/)) {
  713:                 next;
  714:             }
  715:         } elsif ($portaccess eq 'withoutpass') {
  716:             if ($access_status ne 'ok') {
  717:                 next;
  718:             }
  719:         } elsif ($portaccess eq 'withpass') {
  720:             if ($access_status !~  /^[^:]+:guest_/) {
  721:                 next;
  722:             }
  723:         }
  724:         if ($mode eq 'listfiles') {
  725:             $filename =~ s/^\///;
  726:             my @pathitems = split('/',$filename);
  727:             my $lasthash = $allfileshash;
  728:             while (@pathitems > 1) {
  729:                 my $newlevel = shift(@pathitems);
  730:                 if (!exists($lasthash->{$newlevel})) {
  731:                     $lasthash->{$newlevel} = {};
  732:                 }
  733:                 $lasthash = $lasthash->{$newlevel};
  734:             }
  735:             $lasthash->{$pathitems[0]} = $filename;
  736:         }
  737:         if ($access_status eq 'ok') {
  738:             $filecounts->{'withoutpass'} ++;
  739:         } elsif ($access_status =~  /^[^:]+:guest_/) {
  740:             $filecounts->{'withpass'} ++;
  741:         }
  742:     }
  743:     $filecounts->{'both'} =  $filecounts->{'withoutpass'} +
  744:                               $filecounts->{'withpass'};
  745:     my $output;
  746:     if ($mode eq 'listfiles') {
  747:         if ($filecounts->{'both'} > 0) {
  748:             $output = &Apache::loncommon::start_data_table();
  749:             $output .= &parse_directory($r,0,$allfileshash,'',$is_course,
  750:                                         $group);
  751:             $output .= &Apache::loncommon::end_data_table();
  752:         }
  753:     }
  754:     return $output;
  755: }
  756: 
  757: sub parse_directory {
  758:     my ($r,$depth,$currhash,$path,$is_course,$group) = @_;
  759:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  760:     $depth++;
  761:     my $output;
  762: 
  763:     my $portfolio_root = &Apache::portfolio::get_portfolio_root($cdom,$cnum,
  764:                                                                 $group);
  765:     my $getpropath = 1;
  766:     my %dirlist = map {
  767:         ((split('&',$_,2))[0],1)
  768:     } &Apache::lonnet::dirlist($portfolio_root.$path,$cdom,$cnum,$getpropath);
  769:     foreach my $item (sort(keys(%{$currhash}))) {
  770:         $output .= &Apache::loncommon::start_data_table_row();
  771:         $output .= '<td style="padding-left: '.($depth*25).'px">';
  772:         if (ref($currhash->{$item}) eq 'HASH') {
  773:             my $title=&HTML::Entities::encode($item,'<>&"');
  774:             $output .= '<img src="'.&Apache::loncommon::lonhttpdurl("/adm/lonIcons/navmap.folder.open.gif").'" alt="'.&mt('Folder').' '.$title.'" class="LC_icon" />&nbsp;'.$title;
  775:             $output .= '</td><td>&nbsp;</td>'
  776:                       .&Apache::loncommon::end_data_table_row();
  777:             $output .= &parse_directory($r,$depth,$currhash->{$item},
  778:                     $path.'/'.$item,$is_course,$group);
  779:         } else {
  780:             my $file_name;
  781:             if ($currhash->{$item} =~ m|/([^/]+)$|) {
  782:                 $file_name = $1;
  783:             } else {
  784:                 $file_name = $currhash->{$item};
  785:             }
  786:             my $have_meta = exists($dirlist{$file_name.'.meta'});
  787:             my $url;
  788:             if ($is_course) {
  789:                 $url = '/uploaded/'.$cdom.'/'.$cnum.'/groups/'.$group.
  790:                     '/portfolio/'.$currhash->{$item};
  791:             } else {
  792:                 $url = '/uploaded/'.$cdom.'/'.$cnum.'/portfolio/'.$currhash->{$item};
  793:             }
  794:             my $showname;
  795:             if ($have_meta) {
  796:                 $showname = &Apache::lonnet::metadata($url,'title');
  797:             }
  798:             if ($showname eq '') {
  799:                 $showname = $file_name;
  800:             } else {
  801:                 $showname = $file_name.' ('.$showname.')';
  802:             }
  803: 
  804:             $showname=&HTML::Entities::encode($showname,'<>&"');
  805:             $output .= '<a href="'.$url.'">'.
  806:                 '<img alt="" src="'.&Apache::loncommon::icon($currhash->{$item}).'" class="LC_icon" />'.
  807:                 '&nbsp;'.$showname.'</a>';
  808:             $output.='</td><td>';
  809:             if ($have_meta) {
  810:                 $output.= '<a href="'.$url.'.meta"><img alt="'.&mt('Metadata').'" src="'.
  811:                     &Apache::loncommon::lonhttpdurl('/res/adm/pages/catalog.png').
  812:                     '" class="LC_icon" /></a>';
  813:             }
  814:             $output .= '</td>'
  815:                 .&Apache::loncommon::end_data_table_row();
  816:         }
  817:     } 
  818:     return $output;
  819: }
  820: 
  821: sub aboutme_access {
  822:     my ($uname,$udom) = @_;
  823:     my $privcheck = $env{'request.course.id'};
  824:     my $sec;
  825:     if ($env{'request.course.sec'} ne '') {
  826:         $sec = $env{'request.course.sec'};
  827:         $privcheck .= '/'.$sec;
  828:     }
  829:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  830:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
  831:     if (($cdom eq '') || ($cnum eq '')) {
  832:         my %coursehash = &Apache::lonnet::coursedescription($env{'request.course.id'});
  833:         $cdom = $coursehash{'domain'};
  834:         $cnum = $coursehash{'cnum'};
  835:     }
  836:     if ((&Apache::lonnet::allowed('srm',$privcheck)) ||
  837:         (&Apache::lonnet::allowed('dff',$privcheck))) {
  838:         if (&in_course($uname,$udom,$cnum,$cdom)) {
  839:             return 1;
  840:         }
  841:     }
  842:     return;
  843: }
  844: 
  845: 1;
  846: __END__

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