File:  [LON-CAPA] / loncom / interface / lonaboutme.pm
Revision 1.85: download - view: text, annotated - select for diffs
Mon Dec 15 16:37:44 2008 UTC (15 years, 5 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD
- $brcrum is a reference to an anonymous array [] (use $brcrum not @brcrum).
- add sanity checking to confirm that the arg passed was an array ref.
- style
  - indentation
  - exists()

    1: # The LearningOnline Network
    2: # "About Me" Personal Information
    3: #
    4: # $Id: lonaboutme.pm,v 1.85 2008/12/15 16:37:44 raeburn Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: 
   29: =pod
   30: 
   31: =head1 NAME
   32: 
   33: pache::lonaboutme
   34: 
   35: =head1 SYNOPSIS
   36: 
   37: (empty)
   38: 
   39: This is part of the LearningOnline Network with CAPA project
   40: described at http://www.lon-capa.org.
   41: 
   42: =head1 OVERVIEW
   43: 
   44: (empty)
   45: 
   46: 
   47: =head1 SUBROUTINES
   48: 
   49: =over
   50: 
   51: =item handler()
   52: 
   53: =item in_course()
   54: 
   55: =item aboutme_info()
   56: 
   57: =item print_portfiles_link()
   58: 
   59: =item build_query_string()
   60: 
   61: =item display_portfolio_header()
   62: 
   63: =item display_portfolio_files()
   64: 
   65: =item portfolio_files()
   66: 
   67: =item build_hierarchy()
   68: 
   69: =item parse_directory()
   70: 
   71: =back
   72: 
   73: =cut
   74: 
   75: 
   76: package Apache::lonaboutme;
   77: 
   78: use strict;
   79: use Apache::Constants qw(:common);
   80: use Apache::loncommon;
   81: use Apache::lonnet;
   82: use Apache::lontexconvert;
   83: use Apache::lonfeedback;
   84: use Apache::lonrss();
   85: use Apache::lonlocal;
   86: use Apache::lonmsgdisplay();
   87: use Apache::lontemplate;
   88: use HTML::Entities();
   89: 
   90: sub handler {
   91:     my $r = shift;
   92:     &Apache::loncommon::content_type($r,'text/html');
   93:     $r->send_http_header;
   94:     return OK if $r->header_only;
   95:     my $target=$env{'form.grade_target'};
   96: # ------------------------------------------------------------ Print the screen
   97:     if ($target eq 'tex') {
   98: 	$r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
   99:     }
  100:     my (undef,undef,$cdom,$cnum,undef,$action)=split(/\//,$r->uri);
  101:     my $is_course;
  102: # Is this even a user?
  103:     if (&Apache::lonnet::homeserver($cnum,$cdom) eq 'no_host') {
  104: 	&Apache::loncommon::simple_error_page($r,'No info',
  105: 					      'No user information available');
  106:         return OK;
  107:     } else {
  108:         $is_course = &Apache::lonnet::is_course($cdom,$cnum);
  109:     }
  110: 
  111:     my $candisplay = 1;
  112:     if (!$is_course) {
  113:         if ($action ne 'portfolio') {
  114:             $candisplay = &Apache::lonnet::usertools_access($cnum,$cdom,'aboutme');
  115:             if ((!$candisplay) && ($env{'request.course.id'})) {
  116:                 $candisplay = &aboutme_access($cnum,$cdom);
  117:             }
  118:             if (!$candisplay) {
  119:                 if ($target eq 'tex') {
  120:                     $r->print('\noindent{\large\textbf{'.&mt('No user home page available').'}}\\\\\\\\');
  121:                 } else {
  122:                     $r->print(&Apache::loncommon::start_page("Personal Information"));
  123:                     $r->print('<h2>'.&mt('No user home page available') .'</h2>'.
  124:                               &mt('This is a result of one of the following:').'<ul>'.
  125:                               '<li>'.&mt('The administrator of this domain has disabled home page functionality for this specific user.').'</li>'.
  126:                               '<li>'.&mt('The domain has been configured to disable, by default, home page functionality for all users in the domain.').'</li>'.
  127:                               '</ul>');
  128:                     $r->print(&Apache::loncommon::end_page());
  129:                 }
  130:                 return OK;
  131:             }
  132:         }
  133:     }
  134: 
  135: # --------------------------------------------------------- The syllabus fields
  136:     my %syllabusfields=&Apache::lonlocal::texthash(
  137:        'aaa_contactinfo'   => 'Contact Information',
  138:        'bbb_aboutme'       => 'About Me',
  139:        'ccc_webreferences' => 'Web References');
  140: 
  141: # ------------------------------------------------------------ Get Query String
  142:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
  143: 					    ['forceedit','forcestudent',
  144: 					     'register','popup']);
  145: 
  146: # ----------------------------------------------- Available Portfolio file display 
  147:     if (($target ne 'tex') && ($action eq 'portfolio')) {
  148:         &display_portfolio_header($r,$is_course);
  149:         if ((!$is_course) && (!&Apache::lonnet::usertools_access($cnum,$cdom,'portfolio'))) {
  150:             $r->print('<h2>'.&mt('No user portfolio available') .'</h2>'.
  151:                       &mt('This is a result of one of the following:').'<ul>'.
  152:                       '<li>'.&mt('The administrator of this domain has disabled portfolio functionality for this specific user.').'</li>'.
  153:                       '<li>'.&mt('The domain has been configured to disable, by default, portfolio functionality for all users in the domain.').'</li>'.
  154:                       '</ul>');
  155:         } else {
  156:             my ($blocked,$blocktext) = 
  157:                 &Apache::loncommon::blocking_status('port',$cnum,$cdom);
  158:             if (!$blocked) {
  159:                 &display_portfolio_files($r,$is_course);
  160:             } else {
  161:                 $r->print($blocktext);
  162:             }
  163:         }
  164:         $r->print(&Apache::loncommon::end_page());
  165:         return OK;
  166:     }
  167: 
  168:     if ($is_course) {
  169:         if ($target ne 'tex') {
  170: 	    my $brcrum = [{href=>"/adm/navmaps",text=>"Navigate Course Contents"},
  171: 			  {href=>"/adm/aboutme",text=>"Course Information"}];
  172:             my $start_page =
  173:                 &Apache::loncommon::start_page(
  174:                     "Course Information",
  175:                      undef,
  176:                      {'function' => $env{'forcestudent'},
  177:                       'domain'   => $cdom,
  178:                       'force_register' => $env{'forceregister'},
  179:                       'bread_crumbs' => $brcrum});
  180:             $r->print($start_page);
  181:             $r->print('<h2>'.&mt('Group files').'</h2>');
  182:             &print_portfiles_link($r,$is_course);
  183:             $r->print(&Apache::loncommon::end_page());
  184:         }
  185:         return OK;
  186:     }
  187: 
  188: # --------------------------------------------------------------- Force Student
  189:     my $forcestudent='';
  190:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  191: 
  192:     my $forceregister = '';
  193:     if ($forcestudent eq '') {
  194:         $forceregister = $env{'form.register'};
  195:     }
  196:        
  197: # --------------------------------------- There is such a user, get environment
  198:     my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
  199:     if ($target ne 'tex') {
  200: 	my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
  201:         my $args = {'function' => $forcestudent,
  202:                     'domain'   => $cdom,
  203:                     'force_register' => $forceregister};
  204:         if ($env{'form.popup'}) {
  205:             $args->{'no_nav_bar'} = 1;
  206:         }
  207: 	$args->{'bread_crumbs'} = [{href=>"/adm/fhwfdev/$cnum/aboutme",text=>"Personal Information"}];
  208: 	my $start_page = 
  209: 	    &Apache::loncommon::start_page("Personal Information",$rss_link,$args);
  210: 	$r->print($start_page);
  211: 	$r->print('<h2>'.&Apache::loncommon::plainname($cnum,$cdom).'</h2>');
  212:     } else {
  213: 	$r->print('\noindent{\large\textbf{'.&Apache::loncommon::plainname($cnum,$cdom).'}}\\\\\\\\');
  214:     }
  215:     if ($courseenv{'nickname'}) {
  216:        $r->print(
  217:          '<h2>&quot;'.$courseenv{'nickname'}.
  218:          '&quot;</h2>');
  219:     }
  220:     if ($target ne 'tex') {
  221: 	$r->print('<h3>'.&Apache::lonnet::domain($cdom,'description').'</h3>');#OLD SendMessage POS
  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: 	   $r->print('<p><b>'.&mt('Privacy Note').':</b> '.
  237: 		     &mt('The information you submit can be viewed by anybody who is logged into LON-CAPA. Do not provide information that you are not ready to share publicly.').
  238: 		     '</p>'.
  239: 		     &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')).'</p><p><a href="'.$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.$query_string.'">'.
  244: 		     &mt('Edit').'</a></p>');
  245:        }
  246:       if (($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::userphotoupload('uploaddoc','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: my $lastmod;
  278: my $image; 
  279: # ---------------------------------------------------------------- Get syllabus
  280:     if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
  281:        $lastmod=$syllabus{'uploaded.lastmodified'};
  282:        $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
  283:        # $r->print(&mt('Last updated').': '.$lastmod); #Old Last Modifi Pos
  284:        if ($syllabus{'uploaded.photourl'}) {
  285: 	   &Apache::lonnet::allowuploaded('/adm/aboutme',
  286: 					  $syllabus{'uploaded.photourl'});
  287: 	   $image=qq{<img name="userPhoto" src="$syllabus{'uploaded.photourl'}" />};
  288: 
  289: 	   if ($target eq 'tex') {
  290: 	       $image=&Apache::lonxml::xmlparse($r,'tex',$image);
  291: 	   }
  292: 	  # $r->print($image); #Print old Image
  293:        }
  294:        if ($allowed) {
  295:            $r->print(
  296: 	 '<form method="post" enctype="multipart/form-data">'.
  297:          '<h3>'.&mt('Upload a Photo').'</h3>'.
  298:          '<input type="file" name="uploaddoc" size="50" />'.
  299:          '<input type="submit" name="storeupl" value="'.&mt('Upload').'" />'.
  300:          '<input type="hidden" name="popup" value="'.$env{'form.popup'}.'" />'.
  301: 	 '</form><form method="post"><input type="submit" name="delupl" value="'.&mt('Delete Photo').'" /> </form>
  302: ');
  303: 
  304:        }
  305: 	&Apache::lontemplate::start_columnSection($r);
  306: 	&Apache::lontemplate::print_content_template($r,$allowed,$target,\%syllabusfields,\%syllabus);
  307:        if($target ne 'tex')
  308:        {
  309: 		&Apache::lontemplate::start_ContentBox($r);
  310: 		$r->print($image);
  311: 		&Apache::lontemplate::send_message($r,$cnum,$cdom);
  312: 		&Apache::lontemplate::end_ContentBox($r);
  313: 		&Apache::lontemplate::end_columnSection($r);
  314: 		&Apache::lontemplate::start_columnSection($r);
  315: 		&Apache::lontemplate::start_ContentBox($r);
  316: 		&print_portfiles_link($r,$is_course);
  317: 		if(&Apache::lonrss::advertisefeeds($cnum,$cdom) ne ''){
  318: 			$r->print('<div class="ContentBoxSpecial">');
  319: 			$r->print('<h4 class="hcell">'.'RSS Feeds and Blogs'.'</h4>');
  320: 			$r->print(&Apache::lonrss::advertisefeeds($cnum,$cdom));
  321: 			$r->print('</div>');
  322: 		}
  323: 		&Apache::lontemplate::end_ContentBox($r);
  324: 		&Apache::lontemplate::end_columnSection($r);
  325:        }
  326: 
  327:        if ($allowed) {
  328:            if ($env{'form.popup'}) {
  329:                $r->print('<input type="hidden" name="popup" value="'.
  330:                          $env{'form.popup'}.'" />');
  331:            }
  332: 	   $r->print('</form>');
  333:        }
  334:        if ($target ne 'tex') {$r->print('<br />');} else {$r->print('\\\\');}
  335:     } else {
  336:        $r->print('<p>'.&mt('No personal information provided').'.</p>');
  337:     }
  338: 
  339:     if ($target ne 'tex') {
  340:         # &print_portfiles_link($r,$is_course); #old Print files
  341: 
  342:     }
  343: 
  344:     if ($env{'request.course.id'}
  345: 	&& &Apache::lonnet::allowed('srm',$env{'request.course.id'})
  346: 	&& &in_course($cdom,$cnum)) {
  347: 	if ($target ne 'tex') {
  348: 	    $r->print('<a name="coursecomment" />');
  349: 	    $r->print('<hr /><h3>'.
  350: 		      &mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'</h3>'.
  351: 		      &mt('Shared by course faculty and staff').
  352: 		      &Apache::loncommon::help_open_topic("Course_Face_To_Face_Records,Course_Critical_Message").
  353: 		      '<br />');
  354: 	    &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  355: 	    $r->print('<hr />');
  356: 	    if (&Apache::lonnet::allowed('vsa',
  357: 					 $env{'request.course.id'}) ||
  358: 		&Apache::lonnet::allowed('vsa',
  359: 					 $env{'request.course.id'}.'/'.
  360: 					 $env{'request.course.sec'})) {
  361: 		$r->print(&Apache::loncommon::track_student_link
  362: 			  ('View recent activity by this student',
  363: 			   $cnum,$cdom).('&nbsp;'x2));
  364: 	    }
  365: 	    $r->print(&Apache::loncommon::noteswrapper('Add Records',$cnum,$cdom));
  366: 	} else {
  367: 	    $r->print('\\\\\textbf{'.&mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'}\\\\'.&mt('Shared by course faculty and staff').'\\\\\\\\');
  368: 	    &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  369: 	}
  370:     }
  371:     if ($target ne 'tex') {
  372:         if ($env{'form.popup'}) {
  373:             $r->print('<p><a href="javascript:window.close()">'.&mt('Close window').'</a>');
  374:         }
  375: 	$r->print('<br />'.&mt('Last updated').': '.$lastmod);
  376: 	$r->print(&Apache::loncommon::end_page());
  377:     } else {
  378: 	$r->print('\end{document}');
  379:     }
  380: 
  381:   
  382: 	
  383:     return OK;
  384: }
  385: 
  386: sub in_course {
  387:     my ($udom,$uname,$cdom,$cnum,$type) = @_;
  388:     $type ||= 'any';
  389:     if (!defined($cdom) || !defined($cnum)) {
  390: 	my $cid  = $env{'request.course.id'};
  391: 	$cdom = $env{'course.'.$cid.'.domain'};
  392: 	$cnum = $env{'course.'.$cid.'.num'};
  393:     }
  394:     my %roles = &Apache::lonnet::dump('roles',$udom,$uname);
  395:     my @course_roles = grep(m{^/\Q$cdom\E/\Q$cnum\E[/_]}, keys(%roles));
  396:     return 0 if (!@course_roles);
  397:     return 1 if ($type eq 'any');
  398:     my $now = time();
  399:     foreach my $role (@course_roles) {
  400: 	my (undef,$role_end,$role_start)=split(/\_/,$roles{$role});
  401: 	my $status = 'active';
  402: 	if ($role_start > 0 && $now < $role_start) {
  403: 	    $status = 'future';
  404: 	}
  405: 	if ($role_end > 0 && $now > $role_end) {
  406: 	    $status = 'previous';
  407: 	}
  408: 	return 1 if ($status eq $type);
  409:     }
  410:     return 0;
  411: }
  412: 
  413: sub aboutme_info {
  414:     my ($r,$is_course) = @_;
  415:     my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
  416:     my $name;
  417:     if (!$is_course) {
  418:         $name = &Apache::loncommon::plainname($cnum,$cdom);
  419:     }
  420:     return ($cdom,$cnum,$name);
  421: }
  422: 
  423: sub print_portfiles_link {
  424:     my ($r,$is_course) = @_;
  425:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  426:     my $filecounts = &portfolio_files($r,'showlink',undef,$is_course,
  427:                                       $cdom,$cnum,$name);
  428:     my $query_string = &build_query_string();
  429:     my $output;
  430:     my %lt = &Apache::lonlocal::texthash(
  431:                          vpfi => 'Viewable portfolio files',
  432:                          vgpf => 'Viewable group portfolio files',
  433:                          difl => 'Display file listing',
  434:              );                     
  435:     if ($filecounts->{'both'} > 0) {
  436: 	$output = '<div class="ContentBoxSpecial"><h4 class="hcell">';
  437: 	$output .= ($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  438:         
  439: 	#$output = '<h4>'.($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  440:         $output .= '<a href="/adm/'.$cdom.'/'.$cnum.'/aboutme/portfolio'.
  441:                    $query_string.'">'.$lt{'difl'}.
  442:                    '</a><br /><br />';
  443:         if ($filecounts->{'both'} == 1) {
  444:             if ($is_course) {
  445:                 $output .= &mt('One group portfolio file is available.').'<ul>';
  446:             } else {
  447:                 $output .= &mt('One portfolio file owned by [_1] is available.',$name).'<ul>';
  448:             }
  449:         } else {
  450:             if ($is_course) {
  451:                 $output .= &mt('A total of [_1] group portfolio files are available.',$filecounts->{'both'}).'<ul>';
  452:             } else {
  453:                 $output .= &mt('A total of [_1] portfolio files owned by [_2] are available.',$filecounts->{'both'},$name).'<ul>';
  454:             }
  455:         }
  456:         if ($filecounts->{'withoutpass'}) {
  457: 	    $output .= '<li>'.&mt('[quant,_1,file is,files are] publicly accessible.',$filecounts->{'withoutpass'}).'</li>';
  458:         }
  459:         if ($filecounts->{'withpass'}) {
  460: 	    $output .= '<li>'.&mt('[quant,_1,file requires,files require] a passphrase for access.',$filecounts->{'withpass'}).'</li>';
  461:         }
  462:         $output .= '</ul>';
  463: 	$output .='</p>';
  464: 	$output .='</div>';
  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=>"Personal information - $name",
  524:                   title=>"Go to personal information page for $name"},                 {href=>"/adm/$cdom/$cnum/aboutme/portfolio",
  525:                   text=>"Viewable files - $name",
  526:                   title=>"Viewable portfolio files for $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 = ( withoutpass => 'passphrase not required',
  540: 	       withpass    => 'passphrase protected',
  541: 	       both        => 'all access types ',);
  542:     %lt = &Apache::lonlocal::texthash(%lt);
  543: 
  544:     my $portaccess = 'withoutpass';
  545:     if (exists($env{'form.portaccess'})) {
  546:         $portaccess = $env{'form.portaccess'};
  547:     }
  548: 
  549:     my $output = '<form action="'.&HTML::Entities::encode($r->uri,'<>&"')
  550: 	.'" name="displaystatus" method="post">'.
  551: 	&mt('File access type: ').'<select name="portaccess">';
  552:     foreach my $type ('withoutpass','withpass','both') {
  553:         $output .= '<option value="'.$type.'" ';
  554:         if ($portaccess eq $type) {
  555:             $output .= 'selected="selected"';
  556:         }
  557:         $output .= '>'.$lt{$type}.'</option>';
  558:     }
  559:     $output .= '</select>'."\n".
  560:                '<input type="submit" name="portaccessbutton" value="'.
  561:                &mt('Update display').'" />';
  562:     $output .= '</form><br /><br />';
  563:     $r->print($output);
  564:     my $filecounts = &portfolio_files($r,'listfiles',\%lt,$is_course,
  565:                                       $cdom,$cnum,$name);
  566:     if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  567:         my $query_string = &build_query_string();
  568:         $r->print('<br /><br /><a href="/adm/'.$cdom.'/'.$cnum.
  569:                   '/aboutme'.$query_string.'">');
  570:         if ($is_course) {
  571:             $r->print(&mt('Course Information page'));
  572:         } else {
  573:             $r->print(&mt('Information about [_1]',$name));
  574:         }
  575:         $r->print('</a>');
  576:     }
  577:     return;
  578: }
  579: 
  580: sub portfolio_files {
  581:     my ($r,$mode,$lt,$is_course,$cdom,$cnum,$name) = @_;
  582:     my $filecounts = {
  583:                        withpass    => 0,
  584:                        withoutpass => 0,
  585:                        both        => 0,
  586:                      };
  587:     my $current_permissions =
  588: 	&Apache::lonnet::get_portfile_permissions($cdom,$cnum);
  589:     my %access_controls = 
  590: 	&Apache::lonnet::get_access_controls($current_permissions);
  591:     my $portaccess;
  592:     if ($mode eq 'showlink') {
  593:         $portaccess = 'both';
  594:     } else {
  595:         $portaccess = 'withoutpass';
  596:         if (exists($env{'form.portaccess'})) {
  597:             $portaccess = $env{'form.portaccess'};
  598:         }
  599:     }
  600: 
  601:     my $diroutput;
  602:     if ($is_course) {
  603:         my %files_by_group;
  604:         foreach my $filename (sort(keys(%access_controls))) {
  605:             my ($group,$path) = split('/',$filename,2);
  606:             $files_by_group{$group}{$path} = $access_controls{$filename}; 
  607:         }
  608:         foreach my $group (sort(keys(%files_by_group))) {
  609:             my %fileshash;
  610:             my $grpout .= &build_hierarchy($r,$cdom,$cnum,$portaccess,
  611:                                            $is_course,$filecounts,$mode,
  612:                                            $files_by_group{$group},
  613:                                            \%fileshash,$group);
  614:             if ($grpout) {
  615:                 $diroutput .= '<h3>'.$group.'</h3>'.$grpout.'<br />';
  616:             }
  617:         }
  618:     } else {
  619:         my %allfileshash;
  620:         $diroutput = &build_hierarchy($r,$cdom,$cnum,$portaccess,$is_course,
  621:                                       $filecounts,$mode,\%access_controls,
  622:                                       \%allfileshash);
  623:     }
  624:     if ($mode eq 'listfiles') {
  625:         if ($filecounts->{'both'}) {
  626:              $r->print($diroutput);
  627:         } else {
  628:             my $access_text;
  629:             if (ref($lt) eq 'HASH') {
  630:                 $access_text = $lt->{$portaccess};   
  631:             }
  632:             $r->print(&mt('There are no available files of the specified access type: [_1]',$access_text));
  633:         }
  634:     }
  635:     return $filecounts;
  636: }
  637: 
  638: { 
  639:     my $count=0;
  640:     sub portfolio_table_start {
  641: 	$count=0;
  642: 	return '<table class="LC_aboutme_port">';
  643:     }
  644:     sub portfolio_row_start {
  645: 	$count++;
  646: 	my $class = ($count%2)?'LC_odd_row'
  647: 	                      :'LC_even_row';
  648: 	return '<tr class="'.$class.'">';
  649:     }
  650: }
  651: 
  652: sub build_hierarchy {
  653:     my ($r,$cdom,$cnum,$portaccess,$is_course,$filecounts,$mode,$access_info,
  654:         $allfileshash,$group) = @_;
  655:     foreach my $filename (sort(keys(%{$access_info}))) {
  656:         my $access_status =
  657:            &Apache::lonnet::get_portfolio_access($cdom,$cnum,$filename,$group,                                                 $$access_info{$filename});
  658:         if ($portaccess eq 'both') {
  659:             if (($access_status ne 'ok') &&
  660:                 ($access_status !~  /^[^:]+:guest_/)) {
  661:                 next;
  662:             }
  663:         } elsif ($portaccess eq 'withoutpass') {
  664:             if ($access_status ne 'ok') {
  665:                 next;
  666:             }
  667:         } elsif ($portaccess eq 'withpass') {
  668:             if ($access_status !~  /^[^:]+:guest_/) {
  669:                 next;
  670:             }
  671:         }
  672:         if ($mode eq 'listfiles') {
  673:             $filename =~ s/^\///;
  674:             my @pathitems = split('/',$filename);
  675:             my $lasthash = $allfileshash;
  676:             while (@pathitems > 1) {
  677:                 my $newlevel = shift(@pathitems);
  678:                 if (!exists($lasthash->{$newlevel})) {
  679:                     $lasthash->{$newlevel} = {};
  680:                 }
  681:                 $lasthash = $lasthash->{$newlevel};
  682:             }
  683:             $lasthash->{$pathitems[0]} = $filename;
  684:         }
  685:         if ($access_status eq 'ok') {
  686:             $filecounts->{'withoutpass'} ++;
  687:         } elsif ($access_status =~  /^[^:]+:guest_/) {
  688:             $filecounts->{'withpass'} ++;
  689:         }
  690:     }
  691:     $filecounts->{'both'} =  $filecounts->{'withoutpass'} +
  692:                               $filecounts->{'withpass'};
  693:     my $output;
  694:     if ($mode eq 'listfiles') {
  695:         if ($filecounts->{'both'} > 0) {
  696:             $output = &portfolio_table_start();
  697:             $output .= &parse_directory($r,0,$allfileshash,'',$is_course,
  698:                                         $group);
  699:             $output .= '</table>';
  700:         }
  701:     }
  702:     return $output;
  703: }
  704: 
  705: sub parse_directory {
  706:     my ($r,$depth,$currhash,$path,$is_course,$group) = @_;
  707:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  708:     $depth++;
  709:     my $output;
  710: 
  711:     my $portfolio_root = &Apache::portfolio::get_portfolio_root($cdom,$cnum,
  712:                                                                 $group);
  713:     my $getpropath = 1;
  714:     my %dirlist = map {
  715: 	    ((split('&',$_,2))[0],1)
  716: 	} &Apache::lonnet::dirlist($portfolio_root.$path,$cdom,$cnum,$getpropath);
  717:     foreach my $item (sort(keys(%{$currhash}))) {
  718:         $output .= &portfolio_row_start();
  719:         $output .= '<td style="padding-left: '.($depth*25).'px">';
  720:         if (ref($currhash->{$item}) eq 'HASH') {
  721:             my $title=&HTML::Entities::encode($item,'<>&"');
  722:             $output .= '<img src="'.&Apache::loncommon::lonhttpdurl("/adm/lonIcons/navmap.folder.open.gif").'" alt="'.&mt('Folder').' '.$title.'" class="LC_icon" />&nbsp;'.$title;
  723: 	    $output .= '</td><td></td></tr>';
  724:             $output .= &parse_directory($r,$depth,$currhash->{$item},
  725: 					$path.'/'.$item,$is_course,$group);
  726:         } else {
  727: 	    my $file_name; 
  728: 	    if ($currhash->{$item} =~ m|/([^/]+)$|) {
  729: 		$file_name = $1;
  730: 	    } else {
  731: 		$file_name = $currhash->{$item};
  732: 	    }
  733: 	    my $have_meta = exists($dirlist{$file_name.'.meta'});
  734:             my $url;
  735:             if ($is_course) {
  736:                 $url = '/uploaded/'.$cdom.'/'.$cnum.'/groups/'.$group.
  737:                        '/portfolio/'.$currhash->{$item};
  738:             } else { 
  739: 	        $url = '/uploaded/'.$cdom.'/'.$cnum.'/portfolio/'.
  740: 		       $currhash->{$item};
  741:             }
  742:             my $showname;
  743: 	    if ($have_meta) {
  744: 		$showname = &Apache::lonnet::metadata($url,'title');
  745: 	    }
  746: 	    if ($showname eq '') {
  747: 		$showname = $file_name;
  748: 	    } else {
  749: 		$showname = $file_name.' ('.$showname.')';
  750: 	    }
  751: 
  752:             $showname=&HTML::Entities::encode($showname,'<>&"');
  753:             $output .= '<a href="'.$url.'">'.
  754: 		'<img alt="" src="'.&Apache::loncommon::icon($currhash->{$item}).'" class="LC_icon" />'.
  755: 		'&nbsp;'.$showname.'</a>';
  756: 	    $output.='</td><td>';
  757: 	    if ($have_meta) {
  758: 		$output.= '<a href="'.$url.'.meta"><img alt="'.&mt('Catalog Information').'" src="'.
  759: 		&Apache::loncommon::lonhttpdurl('/res/adm/pages/catalog.gif').
  760: 		'" class="LC_icon" /></a>';
  761: 	    }
  762: 	    $output .= '</td></tr>';
  763:         }
  764:     }
  765:     return $output;
  766: }
  767: 
  768: sub aboutme_access {
  769:     my ($uname,$udom) = @_;
  770:     my $privcheck = $env{'request.course.id'};
  771:     my $sec;
  772:     if ($env{'request.course.sec'} ne '') {
  773:         $sec = $env{'request.course.sec'};
  774:         $privcheck .= '/'.$sec;
  775:     }
  776:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  777:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
  778:     if (($cdom eq '') || ($cnum eq '')) {
  779:         my %coursehash = &coursedescription($env{'request.course.id'});
  780:         $cdom = $coursehash{'domain'};
  781:         $cnum = $coursehash{'cnum'};
  782:     }
  783:     if ((&Apache::lonnet::allowed('srm',$privcheck)) || 
  784:         (&Apache::lonnet::allowed('dff',$privcheck))) {
  785:         if (&in_course($uname,$udom,$cnum,$cdom)) {
  786:             return 1;
  787:         }
  788:     }
  789:     return;
  790: }
  791: 
  792: 1;
  793: __END__

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