File:  [LON-CAPA] / loncom / interface / lonaboutme.pm
Revision 1.70.4.3: download - view: text, annotated - select for diffs
Sat Jan 30 18:03:40 2010 UTC (14 years, 4 months ago) by raeburn
Branches: version_2_9_X
CVS tags: version_2_9_0, version_2_8_99_1
Diff to branchpoint 1.70: preferred, unified
- Backport 1.142.

    1: # The LearningOnline Network
    2: # "About Me" Personal Information
    3: #
    4: # $Id: lonaboutme.pm,v 1.70.4.3 2010/01/30 18:03:40 raeburn Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: 
   29: =pod
   30: 
   31: =head1 NAME
   32: 
   33: Apache::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: package Apache::lonaboutme;
   76: 
   77: use strict;
   78: use Apache::Constants qw(:common);
   79: use Apache::loncommon;
   80: use Apache::lonnet;
   81: use Apache::lontexconvert;
   82: use Apache::lonfeedback;
   83: use Apache::lonrss();
   84: use Apache::lonlocal;
   85: use Apache::lonmsgdisplay();
   86: use HTML::Entities();
   87: 
   88: sub handler {
   89:     my $r = shift;
   90:     &Apache::loncommon::content_type($r,'text/html');
   91:     $r->send_http_header;
   92:     return OK if $r->header_only;
   93:     my $target=$env{'form.grade_target'};
   94: # ------------------------------------------------------------ Print the screen
   95:     if ($target eq 'tex') {
   96: 	$r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
   97:     }
   98:     my (undef,undef,$cdom,$cnum,undef,$action)=split(/\//,$r->uri);
   99:     my $is_course;
  100: # Is this even a user?
  101:     if (&Apache::lonnet::homeserver($cnum,$cdom) eq 'no_host') {
  102: 	&Apache::loncommon::simple_error_page($r,'No info',
  103: 					      'No user information available');
  104:         return OK;
  105:     } else {
  106:         $is_course = &Apache::lonnet::is_course($cdom,$cnum);
  107:     }
  108: 
  109:     my $candisplay = 1;
  110:     if (!$is_course) {
  111:         if ($action ne 'portfolio') {
  112:             $candisplay = &Apache::lonnet::usertools_access($cnum,$cdom,'aboutme');
  113:             if ((!$candisplay) && ($env{'request.course.id'})) {
  114:                 $candisplay = &aboutme_access($cnum,$cdom);
  115:             }
  116:             if (!$candisplay) {
  117:                 if ($target eq 'tex') {
  118:                     $r->print('\noindent{\large\textbf{'.&mt('No user home page available').'}}\\\\\\\\');
  119:                 } else {
  120:                     $r->print(&Apache::loncommon::start_page("Personal Information Page"));
  121:                     $r->print('<h2>'.&mt('No personal information page available') .'</h2>'.
  122:                               &mt('This is a result of one of the following:').'<ul>'.
  123:                               '<li>'.&mt('The administrator of this domain has disabled personal information page functionality for this specific user.').'</li>'.
  124:                               '<li>'.&mt('The domain has been configured to disable, by default, personal information page functionality for all users in the domain.').'</li>'.
  125:                               '</ul>');
  126:                     $r->print(&Apache::loncommon::end_page());
  127:                 }
  128:                 return OK;
  129:             }
  130:         }
  131:     }
  132: 
  133: # --------------------------------------------------------- The syllabus fields
  134:     my %syllabusfields=&Apache::lonlocal::texthash(
  135:        'aaa_contactinfo'   => 'Contact Information',
  136:        'bbb_aboutme'       => 'Personal Information',
  137:        'ccc_webreferences' => 'Web References');
  138: 
  139: # ------------------------------------------------------------ Get Query String
  140:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
  141: 					    ['forceedit','forcestudent',
  142: 					     'register','popup']);
  143: 
  144: # ----------------------------------------------- Available Portfolio file display 
  145:     if (($target ne 'tex') && ($action eq 'portfolio')) {
  146:         &display_portfolio_header($r,$is_course);
  147:         if ((!$is_course) && (!&Apache::lonnet::usertools_access($cnum,$cdom,'portfolio'))) {
  148:             $r->print('<h2>'.&mt('No user portfolio available') .'</h2>'.
  149:                       &mt('This is a result of one of the following:').'<ul>'.
  150:                       '<li>'.&mt('The administrator of this domain has disabled portfolio functionality for this specific user.').'</li>'.
  151:                       '<li>'.&mt('The domain has been configured to disable, by default, portfolio functionality for all users in the domain.').'</li>'.
  152:                       '</ul>');
  153:         } else {
  154:             my ($blocked,$blocktext) =
  155:                 &Apache::loncommon::blocking_status('port',$cnum,$cdom);
  156:             if (!$blocked) {
  157:                 &display_portfolio_files($r,$is_course);
  158:             } else {
  159:                 $r->print($blocktext);
  160:             }
  161:             $r->print(&Apache::loncommon::end_page());
  162:             return OK;
  163:         }
  164:     }
  165: 
  166:     if ($is_course) {
  167:         if ($target ne 'tex') {
  168: 	    my $brcrum = [{href=>"/adm/navmaps",text=>"Navigate Course Contents"},
  169: 			  {href=>"/adm/aboutme",text=>"Course Information"}];
  170:             my $start_page =
  171:                 &Apache::loncommon::start_page(
  172:                     "Course Information",
  173:                      undef,
  174:                      {'function' => $env{'forcestudent'},
  175:                       'domain'   => $cdom,
  176:                       'force_register' => $env{'forceregister'},
  177:                       'bread_crumbs' => $brcrum});
  178:             $r->print($start_page);
  179:             $r->print('<h2>'.&mt('Group Portfolio').'</h2>');
  180:             &print_portfiles_link($r,$is_course);
  181:             $r->print(&Apache::loncommon::end_page());
  182:         }
  183:         return OK;
  184:     }
  185: 
  186: # --------------------------------------------------------------- Force Student
  187:     my $forcestudent='';
  188:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  189: 
  190:     my $forceregister = '';
  191:     if ($forcestudent eq '') {
  192:         $forceregister = $env{'form.register'};
  193:     }
  194:        
  195: # --------------------------------------- There is such a user, get environment
  196:     my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
  197:     if ($target ne 'tex') {
  198: 	my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
  199:         my $args = {'function' => $forcestudent,
  200:                     'domain'   => $cdom,
  201:                     'force_register' => $forceregister};
  202:         if ($env{'form.popup'}) {
  203:             $args->{'no_nav_bar'} = 1;
  204:         } else {
  205: 	    $args->{'bread_crumbs'} = [{href=>"/adm/$cdom/$cnum/aboutme",text=>"Personal Information Page"}];
  206:         }
  207: 	my $start_page = 
  208: 	    &Apache::loncommon::start_page("Personal Information Page",$rss_link,$args);
  209: 	$r->print($start_page);
  210: 	$r->print('<h1>'.&Apache::loncommon::plainname($cnum,$cdom).'</h1>');
  211:     } else {
  212: 	$r->print('\noindent{\large\textbf{'.&Apache::loncommon::plainname($cnum,$cdom).'}}\\\\\\\\');
  213:     }
  214:     if ($courseenv{'nickname'}) {
  215:        $r->print(
  216:          '<h2>&quot;'.$courseenv{'nickname'}.
  217:          '&quot;</h2>');
  218:     }
  219:     if ($target ne 'tex') {
  220: 	$r->print('<h3>'.&Apache::lonnet::domain($cdom,'description').'</h3>'.
  221: 		  '<p>'.&Apache::loncommon::messagewrapper(&mt('Send me a message'),$cnum,$cdom).'</p>'.&Apache::lonrss::advertisefeeds($cnum,$cdom));
  222:     } else {
  223: 	$r->print('\textbf{'.&Apache::lonnet::domain($cdom,'description').'}\\\\');
  224:     }
  225:     my %syllabus=&Apache::lonnet::dump('aboutme',$cdom,$cnum);
  226:     my $allowed=0;
  227: 
  228: # does this user have privileges to post, etc?
  229: 
  230:        my $privleged=$allowed=(($env{'user.name'} eq $cnum) && 
  231: 			       ($env{'user.domain'} eq $cdom));
  232:        if ($forcestudent or $target eq 'tex') { $allowed=0; }
  233:  
  234:        if ($allowed) {
  235:            my $query_string = &build_query_string({'forcestudent' => '1','popup' => $env{'form.popup'}});
  236: 	   $r->print('<p class="LC_info"><b>'.&mt('Privacy Note:').'</b> '.
  237: 		     &mt('The information you submit can be viewed by anybody who is logged into LON-CAPA. Do not provide information that you are not ready to share publicly.').
  238: 		     '</p>'.
  239: 		     &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')).'</p><p><a href="'.$r->uri.$query_string.'">'.&mt('Show Public View').'</a>'.
  240: 		     &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
  241:        } elsif ($privleged && $target ne 'tex') {
  242:            my $query_string = &build_query_string({'forceedit' => '1','popup' => $env{'form.popup'}});
  243: 	   $r->print('<p><a href="'.$r->uri.$query_string.'"><font size="+1">'.
  244: 		     &mt('Edit').'</font></a></p>');
  245:        }
  246:       if (($env{'form.uploaddoc.filename'}) &&
  247:           ($env{'form.storeupl'}) && ($allowed)) {
  248:  	  if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
  249: 	      if ($syllabus{'uploaded.photourl'}) {
  250: 		  &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  251: 	      }
  252: 	      $syllabus{'uploaded.photourl'}=
  253:                  &Apache::lonnet::userfileupload('uploaddoc',undef,'aboutme');
  254:  	  }
  255:           $syllabus{'uploaded.lastmodified'}=time;
  256:           &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  257:        }
  258:     if ($allowed && $env{'form.delupl'}) {
  259: 	if ($syllabus{'uploaded.photourl'}) {
  260: 	    &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  261: 	    delete($syllabus{'uploaded.photourl'});
  262: 	    &Apache::lonnet::del('aboutme',['uploaded.photourl'],$cdom,$cnum);
  263: 	}
  264:     }
  265:        if (($allowed) && ($env{'form.storesyl'})) {
  266: 	   foreach my $syl_field (keys(%syllabusfields)) {
  267:                my $field=$env{'form.'.$syl_field};
  268:                $field=~s/\s+$//s;
  269:                $field=&Apache::lonfeedback::clear_out_html($field,
  270:                                                            $env{'user.adv'});
  271: 	       $syllabus{$syl_field}=$field;
  272:            }
  273:            $syllabus{'uploaded.lastmodified'}=time;
  274:            &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  275:        }
  276: 
  277: # ---------------------------------------------------------------- Get syllabus
  278:     if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
  279:        my $lastmod=$syllabus{'uploaded.lastmodified'};
  280:        $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
  281:        $r->print(&mt('Last updated').': '.$lastmod);
  282:        if ($syllabus{'uploaded.photourl'}) {
  283: 	   &Apache::lonnet::allowuploaded('/adm/aboutme',
  284: 					  $syllabus{'uploaded.photourl'});
  285: 	   my $image=
  286:                qq{<img src="$syllabus{'uploaded.photourl'}" align="right" />};
  287: 	   if ($target eq 'tex') {
  288: 	       $image=&Apache::lonxml::xmlparse($r,'tex',$image);
  289: 	   }
  290: 	   $r->print($image);
  291:        }
  292:        if ($allowed) {
  293:            $r->print(
  294: 	 '<form method="post">
  295:                <input type="submit" name="delupl" value="'.&mt('Delete Photo').'" />
  296:           </form>'.
  297: 	 '<form method="post" enctype="multipart/form-data">'.
  298:          '<h3>'.&mt('Upload a Photo').'</h3>'.
  299:          '<input type="file" name="uploaddoc" size="50" />'.
  300:          '<input type="submit" name="storeupl" value="'.&mt('Upload').'" />'.
  301:          '<input type="hidden" name="popup" value="'.$env{'form.popup'}.'" />'.
  302: 	 '</form><form method="post">');
  303: 
  304:        }
  305:        foreach my $field (sort(keys(%syllabusfields))) {
  306:           if (($syllabus{$field}) || ($allowed)) {
  307:               my $message=$syllabus{$field};
  308: 	      &Apache::lonfeedback::newline_to_br(\$message);
  309:               $message
  310:              =~s/(http\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
  311: 	      if ($allowed) {
  312: 		  $message=&Apache::lonspeller::markeduptext($message);
  313: 	      }
  314: 	      $message=&Apache::lontexconvert::msgtexconverted($message);
  315: 	      if ($target ne 'tex') {
  316: 		  $r->print('<h3>'.$syllabusfields{$field}.'</h3><blockquote>'.
  317:                             $message.'</blockquote>');
  318: 	      } else {
  319: 		     $r->print('\\\\\textbf{'.$syllabusfields{$field}.'}\\\\'.
  320: 			       &Apache::lonxml::xmlparse($r,'tex',$message).'\\\\');
  321: 	      }
  322:               if ($allowed) {
  323:                  $r->print('<br /><textarea cols="80" rows="6" name="'.$field.'">'.
  324: 			   &HTML::Entities::encode($syllabus{$field},'"&<>').
  325:            '</textarea><input type="submit" name="storesyl" value="'.
  326: 			   &mt('Save').'" />');
  327: 	      }
  328: 	  }
  329:        }
  330:        if ($allowed) {
  331:            if ($env{'form.popup'}) {
  332:                $r->print('<input type="hidden" name="popup" value="'.
  333:                          $env{'form.popup'}.'" />');
  334:            }
  335: 	   $r->print('</form>');
  336:        }
  337:        if ($target ne 'tex') {$r->print('<br />');} else {$r->print('\\\\');}
  338:     } else {
  339:        $r->print('<p>'.&mt('No personal information provided').'.</p>');
  340:     }
  341: 
  342:     if ($target ne 'tex') {
  343:         &print_portfiles_link($r,$is_course);
  344:     }
  345: 
  346:     if ($env{'request.course.id'}
  347: 	&& &Apache::lonnet::allowed('srm',$env{'request.course.id'})
  348: 	&& &in_course($cdom,$cnum)) {
  349: 	if ($target ne 'tex') {
  350: 	    $r->print('<a name="coursecomment" />');
  351: 	    $r->print('<hr /><h3>'.
  352: 		      &mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'</h3><span class="LC_info">'.
  353: 		      &mt('Shared by course faculty and staff').
  354: 		      &Apache::loncommon::help_open_topic("Course_Face_To_Face_Records,Course_Critical_Message").
  355: 		      '</span><br />');
  356: 	    &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  357: 	    $r->print('<hr />');
  358: 	    if (&Apache::lonnet::allowed('vsa',
  359: 					 $env{'request.course.id'}) ||
  360: 		&Apache::lonnet::allowed('vsa',
  361: 					 $env{'request.course.id'}.'/'.
  362: 					 $env{'request.course.sec'})) {
  363: 		$r->print(&Apache::loncommon::track_student_link
  364: 			  ('View recent activity by this student',
  365: 			   $cnum,$cdom).('&nbsp;'x2));
  366: 	    }
  367: 	    $r->print(&Apache::loncommon::noteswrapper(&mt('Add Records'),$cnum,$cdom));
  368: 	} else {
  369: 	    $r->print('\\\\\textbf{'.&mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'}\\\\'.&mt('Shared by course faculty and staff').'\\\\\\\\');
  370: 	    &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  371: 	}
  372:     }
  373:     if ($target ne 'tex') {
  374:         if ($env{'request.course.id'}) {
  375:             if (&Apache::lonnet::allowed('vgr', $env{'request.course.id'}) || 
  376:                 &Apache::lonnet::allowed('vgr', $env{'request.course.id'}.'/'.
  377:                                          $env{'request.course.sec'})) {
  378:                 $r->print('<hr />'.&Apache::loncommon::slot_reservations_link('Slot reservation history',$cnum,$cdom));
  379:             }
  380:         }
  381:         if ($env{'form.popup'}) {
  382:             $r->print('<p><a href="javascript:window.close()">'.&mt('Close window').'</a>');
  383:         }
  384: 	$r->print(&Apache::loncommon::end_page());
  385:     } else {
  386: 	$r->print('\end{document}');
  387:     }
  388:     return OK;
  389: }
  390: 
  391: sub in_course {
  392:     my ($udom,$uname,$cdom,$cnum,$type) = @_;
  393:     $type ||= 'any';
  394:     if (!defined($cdom) || !defined($cnum)) {
  395: 	my $cid  = $env{'request.course.id'};
  396: 	$cdom = $env{'course.'.$cid.'.domain'};
  397: 	$cnum = $env{'course.'.$cid.'.num'};
  398:     }
  399:     my %roles = &Apache::lonnet::dump('roles',$udom,$uname);
  400:     my @course_roles = grep(m{^/\Q$cdom\E/\Q$cnum\E[/_]}, keys(%roles));
  401:     return 0 if (!@course_roles);
  402:     return 1 if ($type eq 'any');
  403:     my $now = time();
  404:     foreach my $role (@course_roles) {
  405: 	my (undef,$role_end,$role_start)=split(/\_/,$roles{$role});
  406: 	my $status = 'active';
  407: 	if ($role_start > 0 && $now < $role_start) {
  408: 	    $status = 'future';
  409: 	}
  410: 	if ($role_end > 0 && $now > $role_end) {
  411: 	    $status = 'previous';
  412: 	}
  413: 	return 1 if ($status eq $type);
  414:     }
  415:     return 0;
  416: }
  417: 
  418: sub aboutme_info {
  419:     my ($r,$is_course) = @_;
  420:     my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
  421:     my $name;
  422:     if (!$is_course) {
  423:         $name = &Apache::loncommon::plainname($cnum,$cdom);
  424:     }
  425:     return ($cdom,$cnum,$name);
  426: }
  427: 
  428: sub print_portfiles_link {
  429:     my ($r,$is_course) = @_;
  430:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  431:     my $filecounts = &portfolio_files($r,'showlink',undef,$is_course,
  432:                                       $cdom,$cnum,$name);
  433:     my $query_string = &build_query_string();
  434:     my $output;
  435:     my %lt = &Apache::lonlocal::texthash(
  436:         vpfi => 'Viewable portfolio files',
  437:         vgpf => 'Viewable group portfolio files',
  438:         difl => 'Display file listing',
  439:     );                     
  440:     if ($filecounts->{'both'} > 0) {
  441:         $output = '<h3>'.($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h3>';
  442:         $output .= '<a href="/adm/'.$cdom.'/'.$cnum.'/aboutme/portfolio'.
  443:                    $query_string.'">'.$lt{'difl'}.
  444:                    '</a><br /><br />';
  445:         if ($filecounts->{'both'} == 1) {
  446:             if ($is_course) {
  447:                 $output .= &mt('One group portfolio file is available.').'<ul>';
  448:             } else {
  449:                 $output .= &mt('One portfolio file owned by [_1] is available.',$name).'<ul>';
  450:             }
  451:         } else {
  452:             if ($is_course) {
  453:                 $output .= &mt('A total of [_1] group portfolio files are available.',$filecounts->{'both'}).'<ul>';
  454:             } else {
  455:                 $output .= &mt('A total of [_1] portfolio files owned by [_2] are available.',$filecounts->{'both'},$name).'<ul>';
  456:             }
  457:         }
  458:         if ($filecounts->{'withoutpass'}) {
  459: 	    $output .= '<li>'.&mt('[quant,_1,file is,files are] publicly accessible.',$filecounts->{'withoutpass'}).'</li>';
  460:         }
  461:         if ($filecounts->{'withpass'}) {
  462: 	    $output .= '<li>'.&mt('[quant,_1,file requires,files require] a passphrase for access.',$filecounts->{'withpass'}).'</li>';
  463:         }
  464:         $output .= '</ul>';
  465:     }
  466:     $r->print($output);
  467:     return;
  468: }
  469: 
  470: sub build_query_string {
  471:     my ($new_items) = @_;
  472:     my $query_string;
  473:     my @formelements = ('register'); 
  474:     my $new = 0;
  475:     if (ref($new_items) eq 'HASH') {
  476:         $new = 1;
  477:         if (!defined($new_items->{'forceedit'}) && 
  478:             !defined($new_items->{'forcestudent'})) {
  479:             push(@formelements,('forceedit','forcestudent'));
  480:         }
  481:     } else {
  482:         push(@formelements,('forceedit','forcestudent'));
  483:     }
  484:     foreach my $element (@formelements) {
  485:         if (exists($env{'form.'.$element})) {
  486:             if ((!$new) || (!defined($new_items->{$element}))) {
  487:                 $query_string .= '&amp;'.$element.'='.$env{'form.'.$element};
  488:             }
  489:         }
  490:     }
  491:     if ($new) {
  492:         foreach my $key (keys(%{$new_items})) {
  493:             $query_string .= '&amp;'.$key.'='.$new_items->{$key};
  494:         }
  495:     }
  496:     $query_string =~ s/^\&amp;/\?/;
  497:     return $query_string;
  498: }
  499: 
  500: sub display_portfolio_header {
  501:     my ($r,$is_course) = @_;
  502:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  503:     my $query_string = &build_query_string();
  504:     &Apache::lonhtmlcommon::clear_breadcrumbs();
  505:     my $forcestudent='';
  506:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  507: 
  508:     my $output;
  509:     if ($is_course) {
  510:         $output = 
  511:             &Apache::loncommon::start_page('Viewable group portfolio files',undef,
  512:                                             {'function' => $forcestudent,
  513:                                              'domain'   => $cdom,});
  514:         $output .= '<h3>'.&mt('Group Portfolio files').'</h3>';
  515:     } else {
  516:         $output  =
  517:             &Apache::loncommon::start_page('Viewable portfolio files',undef,
  518:                                             {'function' => $forcestudent,
  519:                                              'domain'   => $cdom,});
  520:         if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  521:             &Apache::lonhtmlcommon::add_breadcrumb
  522:                 ({href  => "/adm/$cdom/$cnum/aboutme".$query_string,
  523:                   text  => &mt('Personal information Page - [_1]',$name),
  524:                   title => &mt('Go to personal information page for [_1]',$name)},                 {href=>"/adm/$cdom/$cnum/aboutme/portfolio",
  525:                   text  => &mt('Viewable files - [_1]',$name),
  526:                   title => &mt('Viewable portfolio files for [_1]',$name)}
  527:             );
  528:             $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('Viewable portfolio files.'));
  529:         }
  530:         $output .= '<h3>'.&mt('Portfolio files for [_1]',$name).'</h3>';
  531:     }
  532:     $r->print($output);
  533:     return;
  534: }
  535: 
  536: sub display_portfolio_files {
  537:     my ($r,$is_course) = @_;
  538:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  539:     my %lt = &Apache::lonlocal::texthash(
  540:          withoutpass => 'passphrase not required',
  541: 	 withpass    => 'passphrase protected',
  542: 	 both        => 'all access types ',
  543:     );
  544: 
  545:     my $portaccess = 'withoutpass';
  546:     if (exists($env{'form.portaccess'})) {
  547:         $portaccess = $env{'form.portaccess'};
  548:     }
  549: 
  550:     my $output = '<form action="'.&HTML::Entities::encode($r->uri,'<>&"')
  551: 	.'" name="displaystatus" method="post">'.
  552: 	&mt('File access type: ').'<select name="portaccess">';
  553:     foreach my $type ('withoutpass','withpass','both') {
  554:         $output .= '<option value="'.$type.'" ';
  555:         if ($portaccess eq $type) {
  556:             $output .= 'selected="selected"';
  557:         }
  558:         $output .= '>'.$lt{$type}.'</option>';
  559:     }
  560:     $output .= '</select>'."\n".
  561:                '<input type="submit" name="portaccessbutton" value="'.
  562:                &mt('Update display').'" />';
  563:     $output .= '</form><br /><br />';
  564:     $r->print($output);
  565:     my $filecounts = &portfolio_files($r,'listfiles',\%lt,$is_course,
  566:                                       $cdom,$cnum,$name);
  567:     if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  568:         my $query_string = &build_query_string();
  569:         $r->print('<br /><br /><a href="/adm/'.$cdom.'/'.$cnum.
  570:                   '/aboutme'.$query_string.'">');
  571:         if ($is_course) {
  572:             $r->print(&mt('Course Information page'));
  573:         } else {
  574:             $r->print(&mt('Information about [_1]',$name));
  575:         }
  576:         $r->print('</a>');
  577:     }
  578:     return;
  579: }
  580: 
  581: sub portfolio_files {
  582:     my ($r,$mode,$lt,$is_course,$cdom,$cnum,$name) = @_;
  583:     my $filecounts = {
  584:                        withpass    => 0,
  585:                        withoutpass => 0,
  586:                        both        => 0,
  587:                      };
  588:     my $current_permissions =
  589: 	&Apache::lonnet::get_portfile_permissions($cdom,$cnum);
  590:     my %access_controls = 
  591: 	&Apache::lonnet::get_access_controls($current_permissions);
  592:     my $portaccess;
  593:     if ($mode eq 'showlink') {
  594:         $portaccess = 'both';
  595:     } else {
  596:         $portaccess = 'withoutpass';
  597:         if (exists($env{'form.portaccess'})) {
  598:             $portaccess = $env{'form.portaccess'};
  599:         }
  600:     }
  601: 
  602:     my $diroutput;
  603:     if ($is_course) {
  604:         my %files_by_group;
  605:         foreach my $filename (sort(keys(%access_controls))) {
  606:             my ($group,$path) = split('/',$filename,2);
  607:             $files_by_group{$group}{$path} = $access_controls{$filename}; 
  608:         }
  609:         foreach my $group (sort(keys(%files_by_group))) {
  610:             my %fileshash;
  611:             my $grpout .= &build_hierarchy($r,$cdom,$cnum,$portaccess,
  612:                                            $is_course,$filecounts,$mode,
  613:                                            $files_by_group{$group},
  614:                                            \%fileshash,$group);
  615:             if ($grpout) {
  616:                 $diroutput .= '<h3>'.$group.'</h3>'.$grpout.'<br />';
  617:             }
  618:         }
  619:     } else {
  620:         my %allfileshash;
  621:         $diroutput = &build_hierarchy($r,$cdom,$cnum,$portaccess,$is_course,
  622:                                       $filecounts,$mode,\%access_controls,
  623:                                       \%allfileshash);
  624:     }
  625:     if ($mode eq 'listfiles') {
  626:         if ($filecounts->{'both'}) {
  627:              $r->print($diroutput);
  628:         } else {
  629:             my $access_text;
  630:             if (ref($lt) eq 'HASH') {
  631:                 $access_text = $lt->{$portaccess};   
  632:             }
  633:             $r->print(&mt('There are no available files of the specified access type: [_1]',$access_text));
  634:         }
  635:     }
  636:     return $filecounts;
  637: }
  638: 
  639: { 
  640:     my $count=0;
  641:     sub portfolio_table_start {
  642: 	$count=0;
  643: 	return '<table class="LC_aboutme_port">';
  644:     }
  645:     sub portfolio_row_start {
  646: 	$count++;
  647: 	my $class = ($count%2)?'LC_odd_row'
  648: 	                      :'LC_even_row';
  649: 	return '<tr class="'.$class.'">';
  650:     }
  651: }
  652: 
  653: sub build_hierarchy {
  654:     my ($r,$cdom,$cnum,$portaccess,$is_course,$filecounts,$mode,$access_info,
  655:         $allfileshash,$group) = @_;
  656:     foreach my $filename (sort(keys(%{$access_info}))) {
  657:         my $access_status =
  658:            &Apache::lonnet::get_portfolio_access($cdom,$cnum,$filename,$group,                                                 $$access_info{$filename});
  659:         if ($portaccess eq 'both') {
  660:             if (($access_status ne 'ok') &&
  661:                 ($access_status !~  /^[^:]+:guest_/)) {
  662:                 next;
  663:             }
  664:         } elsif ($portaccess eq 'withoutpass') {
  665:             if ($access_status ne 'ok') {
  666:                 next;
  667:             }
  668:         } elsif ($portaccess eq 'withpass') {
  669:             if ($access_status !~  /^[^:]+:guest_/) {
  670:                 next;
  671:             }
  672:         }
  673:         if ($mode eq 'listfiles') {
  674:             $filename =~ s/^\///;
  675:             my @pathitems = split('/',$filename);
  676:             my $lasthash = $allfileshash;
  677:             while (@pathitems > 1) {
  678:                 my $newlevel = shift(@pathitems);
  679:                 if (!exists($lasthash->{$newlevel})) {
  680:                     $lasthash->{$newlevel} = {};
  681:                 }
  682:                 $lasthash = $lasthash->{$newlevel};
  683:             }
  684:             $lasthash->{$pathitems[0]} = $filename;
  685:         }
  686:         if ($access_status eq 'ok') {
  687:             $filecounts->{'withoutpass'} ++;
  688:         } elsif ($access_status =~  /^[^:]+:guest_/) {
  689:             $filecounts->{'withpass'} ++;
  690:         }
  691:     }
  692:     $filecounts->{'both'} =  $filecounts->{'withoutpass'} +
  693:                               $filecounts->{'withpass'};
  694:     my $output;
  695:     if ($mode eq 'listfiles') {
  696:         if ($filecounts->{'both'} > 0) {
  697:             $output = &portfolio_table_start();
  698:             $output .= &parse_directory($r,0,$allfileshash,'',$is_course,
  699:                                         $group);
  700:             $output .= '</table>';
  701:         }
  702:     }
  703:     return $output;
  704: }
  705: 
  706: sub parse_directory {
  707:     my ($r,$depth,$currhash,$path,$is_course,$group) = @_;
  708:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  709:     $depth++;
  710:     my $output;
  711: 
  712:     my $portfolio_root = &Apache::portfolio::get_portfolio_root($cdom,$cnum,
  713:                                                                 $group);
  714:     my $getpropath = 1;
  715:     my %dirlist = map {
  716: 	    ((split('&',$_,2))[0],1)
  717: 	} &Apache::lonnet::dirlist($portfolio_root.$path,$cdom,$cnum,$getpropath);
  718:     foreach my $item (sort(keys(%{$currhash}))) {
  719:         $output .= &portfolio_row_start();
  720:         $output .= '<td style="padding-left: '.($depth*25).'px">';
  721:         if (ref($currhash->{$item}) eq 'HASH') {
  722:             my $title=&HTML::Entities::encode($item,'<>&"');
  723:             $output .= '<img src="'.&Apache::loncommon::lonhttpdurl("/adm/lonIcons/navmap.folder.open.gif").'" alt="'.&mt('Folder').' '.$title.'" class="LC_icon" />&nbsp;'.$title;
  724: 	    $output .= '</td><td></td></tr>';
  725:             $output .= &parse_directory($r,$depth,$currhash->{$item},
  726: 					$path.'/'.$item,$is_course,$group);
  727:         } else {
  728: 	    my $file_name; 
  729: 	    if ($currhash->{$item} =~ m|/([^/]+)$|) {
  730: 		$file_name = $1;
  731: 	    } else {
  732: 		$file_name = $currhash->{$item};
  733: 	    }
  734: 	    my $have_meta = exists($dirlist{$file_name.'.meta'});
  735:             my $url;
  736:             if ($is_course) {
  737:                 $url = '/uploaded/'.$cdom.'/'.$cnum.'/groups/'.$group.
  738:                        '/portfolio/'.$currhash->{$item};
  739:             } else { 
  740: 	        $url = '/uploaded/'.$cdom.'/'.$cnum.'/portfolio/'.
  741: 		       $currhash->{$item};
  742:             }
  743:             my $showname;
  744: 	    if ($have_meta) {
  745: 		$showname = &Apache::lonnet::metadata($url,'title');
  746: 	    }
  747: 	    if ($showname eq '') {
  748: 		$showname = $file_name;
  749: 	    } else {
  750: 		$showname = $file_name.' ('.$showname.')';
  751: 	    }
  752: 
  753:             $showname=&HTML::Entities::encode($showname,'<>&"');
  754:             $output .= '<a href="'.$url.'">'.
  755: 		'<img alt="" src="'.&Apache::loncommon::icon($currhash->{$item}).'" class="LC_icon" />'.
  756: 		'&nbsp;'.$showname.'</a>';
  757: 	    $output.='</td><td>';
  758: 	    if ($have_meta) {
  759: 		$output.= '<a href="'.$url.'.meta"><img alt="'.&mt('Metadata').'" src="'.
  760: 		&Apache::loncommon::lonhttpdurl('/res/adm/pages/catalog.gif').
  761: 		'" class="LC_icon" /></a>';
  762: 	    }
  763: 	    $output .= '</td></tr>';
  764:         }
  765:     }
  766:     return $output;
  767: }
  768: 
  769: sub aboutme_access {
  770:     my ($uname,$udom) = @_;
  771:     my $privcheck = $env{'request.course.id'};
  772:     my $sec;
  773:     if ($env{'request.course.sec'} ne '') {
  774:         $sec = $env{'request.course.sec'};
  775:         $privcheck .= '/'.$sec;
  776:     }
  777:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  778:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
  779:     if (($cdom eq '') || ($cnum eq '')) {
  780:         my %coursehash = &Apache::lonnet::coursedescription($env{'request.course.id'});
  781:         $cdom = $coursehash{'domain'};
  782:         $cnum = $coursehash{'cnum'};
  783:     }
  784:     if ((&Apache::lonnet::allowed('srm',$privcheck)) || 
  785:         (&Apache::lonnet::allowed('dff',$privcheck))) {
  786:         if (&in_course($uname,$udom,$cnum,$cdom)) {
  787:             return 1;
  788:         }
  789:     }
  790:     return;
  791: }
  792: 
  793: 1;
  794: __END__

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