File:  [LON-CAPA] / loncom / interface / lonaboutme.pm
Revision 1.77: download - view: text, annotated - select for diffs
Mon Dec 8 23:13:52 2008 UTC (15 years, 6 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD
- Bug 5839. DCs can set availability of User Tools.
  - Display appropriate message if "About Me" page is unavailable for the user.
  - Users with srm and/or dff privilege, will override this, if trying to display the page for a user in a course, when in course context
    - preserves access to records of messages, face-to-face discussions etc.
    - preserves acces to activity log.

    1: # The LearningOnline Network
    2: # "About Me" Personal Information
    3: #
    4: # $Id: lonaboutme.pm,v 1.77 2008/12/08 23:13:52 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:         $candisplay = &Apache::lonnet::usertools_access($cnum,$cdom,'aboutme');
  114:         if ((!$candisplay) && ($env{'request.course.id'})) {
  115:             $candisplay = &aboutme_access($cnum,$cdom);
  116:         }
  117:         if (!$candisplay) {
  118:             if ($target eq 'tex') {
  119:                 $r->print('\noindent{\large\textbf{'.&mt('No user home page available').'}}\\\\\\\\');
  120:             } else {
  121:                 $r->print(&Apache::loncommon::start_page("Personal Information"));
  122:                 $r->print('<h2>'.&mt('No user home page available') .'</h2>'.
  123:                           &mt('This is a result of one of the following:').'<ul>'.
  124:                           '<li>'.&mt('The administrator of this domain has disabled home page functionality for this specific user.').'</li>'.
  125:                           '<li>'.&mt('The domain has been configured to disable, by default, home page functionality for all users in the domain.').'</li>'.
  126:                           '</ul>');
  127:                 $r->print(&Apache::loncommon::end_page());
  128:             }
  129:             return OK;
  130:         }
  131:     }
  132: 
  133: # --------------------------------------------------------- The syllabus fields
  134:     my %syllabusfields=&Apache::lonlocal::texthash(
  135:        'aaa_contactinfo'   => 'Contact Information',
  136:        'bbb_aboutme'       => 'About Me',
  137:        'ccc_webreferences' => 'Web References');
  138: 
  139: # ------------------------------------------------------------ Get Query String
  140:     &Apache::loncommon::get_unprocessed_cgi($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:         my ($blocked,$blocktext) = 
  148:            &Apache::loncommon::blocking_status('port',$cnum,$cdom);
  149:         if (!$blocked) {
  150:             &display_portfolio_files($r,$is_course);
  151:         } else {
  152:             $r->print($blocktext);
  153:         }
  154:         $r->print(&Apache::loncommon::end_page());
  155:         return OK;
  156:     }
  157: 
  158:     if ($is_course) {
  159:         if ($target ne 'tex') {
  160:             my $start_page =
  161:                 &Apache::loncommon::start_page(
  162:                     "Course Information",
  163:                      undef,
  164:                      {'function' => $env{'forcestudent'},
  165:                       'domain'   => $cdom,
  166:                       'force_register' => $env{'forceregister'},});
  167:             $r->print($start_page);
  168:             $r->print('<h2>'.&mt('Group files').'</h2>');
  169:             &print_portfiles_link($r,$is_course);
  170:             $r->print(&Apache::loncommon::end_page());
  171:         }
  172:         return OK;
  173:     }
  174: 
  175: # --------------------------------------------------------------- Force Student
  176:     my $forcestudent='';
  177:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  178: 
  179:     my $forceregister = '';
  180:     if ($forcestudent eq '') {
  181:         $forceregister = $env{'form.register'};
  182:     }
  183:        
  184: # --------------------------------------- There is such a user, get environment
  185:     my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
  186:     if ($target ne 'tex') {
  187: 	my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
  188:         my $args = {'function' => $forcestudent,
  189:                     'domain'   => $cdom,
  190:                     'force_register' => $forceregister};
  191:         if ($env{'form.popup'}) {
  192:             $args->{'no_nav_bar'} = 1;
  193:         }
  194: 	my $start_page = 
  195: 	    &Apache::loncommon::start_page("Personal Information",$rss_link,$args);
  196: 	$r->print($start_page);
  197: 	$r->print('<h2>'.&Apache::loncommon::plainname($cnum,$cdom).'</h2>');
  198:     } else {
  199: 	$r->print('\noindent{\large\textbf{'.&Apache::loncommon::plainname($cnum,$cdom).'}}\\\\\\\\');
  200:     }
  201:     if ($courseenv{'nickname'}) {
  202:        $r->print(
  203:          '<h2>&quot;'.$courseenv{'nickname'}.
  204:          '&quot;</h2>');
  205:     }
  206:     if ($target ne 'tex') {
  207: 	$r->print('<h3>'.&Apache::lonnet::domain($cdom,'description').'</h3>');#OLD SendMessage POS
  208:     } else {
  209: 	$r->print('\textbf{'.&Apache::lonnet::domain($cdom,'description').'}\\\\');
  210:     }
  211:     my %syllabus=&Apache::lonnet::dump('aboutme',$cdom,$cnum);
  212:     my $allowed=0;
  213: 
  214: # does this user have privileges to post, etc?
  215: 
  216:        my $privleged=$allowed=(($env{'user.name'} eq $cnum) && 
  217: 			       ($env{'user.domain'} eq $cdom));
  218:        if ($forcestudent or $target eq 'tex') { $allowed=0; }
  219:  
  220:        if ($allowed) {
  221:            my $query_string = &build_query_string({'forcestudent' => '1','popup' => $env{'form.popup'}});
  222: 	   $r->print('<p><b>'.&mt('Privacy Note').':</b> '.
  223: 		     &mt('The information you submit can be viewed by anybody who is logged into LON-CAPA. Do not provide information that you are not ready to share publicly.').
  224: 		     '</p>'.
  225: 		     &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')).'</p><p><a href="'.$r->uri.$query_string.'">'.&mt('Show Public View').'</a>'.
  226: 		     &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
  227:        } elsif ($privleged && $target ne 'tex') {
  228:            my $query_string = &build_query_string({'forceedit' => '1','popup' => $env{'form.popup'}});
  229: 	   $r->print('<p><a href="'.$r->uri.$query_string.'">'.
  230: 		     &mt('Edit').'</a></p>');
  231:        }
  232:       if (($env{'form.uploaddoc.filename'}) &&
  233:           ($env{'form.storeupl'}) && ($allowed)) {
  234:  	  if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
  235: 	      if ($syllabus{'uploaded.photourl'}) {
  236: 		  &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  237: 	      }
  238: 	      $syllabus{'uploaded.photourl'}=
  239:                  &Apache::lonnet::userfileupload('uploaddoc',undef,'aboutme');
  240:  	  }
  241:           $syllabus{'uploaded.lastmodified'}=time;
  242:           &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  243:        }
  244:     if ($allowed && $env{'form.delupl'}) {
  245: 	if ($syllabus{'uploaded.photourl'}) {
  246: 	    &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  247: 	    delete($syllabus{'uploaded.photourl'});
  248: 	    &Apache::lonnet::del('aboutme',['uploaded.photourl'],$cdom,$cnum);
  249: 	}
  250:     }
  251:        if (($allowed) && ($env{'form.storesyl'})) {
  252: 	   foreach my $syl_field (keys(%syllabusfields)) {
  253:                my $field=$env{'form.'.$syl_field};
  254:                $field=~s/\s+$//s;
  255:                $field=&Apache::lonfeedback::clear_out_html($field,
  256:                                                            $env{'user.adv'});
  257: 	       $syllabus{$syl_field}=$field;
  258:            }
  259:            $syllabus{'uploaded.lastmodified'}=time;
  260:            &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  261:        }
  262: 
  263: my $lastmod;
  264: my $image; 
  265: # ---------------------------------------------------------------- Get syllabus
  266:     if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
  267:        $lastmod=$syllabus{'uploaded.lastmodified'};
  268:        $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
  269:        # $r->print(&mt('Last updated').': '.$lastmod); #Old Last Modifi Pos
  270:        if ($syllabus{'uploaded.photourl'}) {
  271: 	   &Apache::lonnet::allowuploaded('/adm/aboutme',
  272: 					  $syllabus{'uploaded.photourl'});
  273: 	   $image=
  274:                qq{<img name="userPhoto" src="$syllabus{'uploaded.photourl'}" />};
  275: 
  276: 	   if ($target eq 'tex') {
  277: 	       $image=&Apache::lonxml::xmlparse($r,'tex',$image);
  278: 	   }
  279: 	  # $r->print($image); #Print old Image
  280:        }
  281:        if ($allowed) {
  282:            $r->print(
  283: 	 '<form method="post">
  284:                <input type="submit" name="delupl" value="'.&mt('Delete Photo').'" />
  285:           </form>'.
  286: 	 '<form method="post" enctype="multipart/form-data">'.
  287:          '<h3>'.&mt('Upload a Photo').'</h3>'.
  288:          '<input type="file" name="uploaddoc" size="50" />'.
  289:          '<input type="submit" name="storeupl" value="'.&mt('Upload').'" />'.
  290:          '<input type="hidden" name="popup" value="'.$env{'form.popup'}.'" />'.
  291: 	 '</form><form method="post">');
  292: 
  293:        }
  294: 	&Apache::lontemplate::print_content_template($r,$allowed,$target,\%syllabusfields,\%syllabus);
  295:        if($target ne 'tex')
  296:        {
  297: 		
  298: 		  &print_portfiles_link($r,$is_course);
  299: 		$r->print('<div class="ContentBox">');
  300: 		$r->print($image); 
  301: 		$r->print('</div>');
  302:       		 $r->print('</div>');
  303: 			$r->print('<p>');
  304:         
  305: 
  306: 	$r->print('Kontakt');
  307: 	$r->print(&Apache::loncommon::messagewrapper(&mt('Send me a message'),$cnum,$cdom).'</p>'.&Apache::lonrss::advertisefeeds($cnum,$cdom));
  308: 
  309: 
  310:        }
  311: 
  312:        if ($allowed) {
  313:            if ($env{'form.popup'}) {
  314:                $r->print('<input type="hidden" name="popup" value="'.
  315:                          $env{'form.popup'}.'" />');
  316:            }
  317: 	   $r->print('</form>');
  318:        }
  319:        if ($target ne 'tex') {$r->print('<br />');} else {$r->print('\\\\');}
  320:     } else {
  321:        $r->print('<p>'.&mt('No personal information provided').'.</p>');
  322:     }
  323: 
  324:     if ($target ne 'tex') {
  325:         # &print_portfiles_link($r,$is_course); #old Print files
  326: 
  327:     }
  328: 
  329:     if ($env{'request.course.id'}
  330: 	&& &Apache::lonnet::allowed('srm',$env{'request.course.id'})
  331: 	&& &in_course($cdom,$cnum)) {
  332: 	if ($target ne 'tex') {
  333: 	    $r->print('<a name="coursecomment" />');
  334: 	    $r->print('<hr /><h3>'.
  335: 		      &mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'</h3>'.
  336: 		      &mt('Shared by course faculty and staff').
  337: 		      &Apache::loncommon::help_open_topic("Course_Face_To_Face_Records,Course_Critical_Message").
  338: 		      '<br />');
  339: 	    &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  340: 	    $r->print('<hr />');
  341: 	    if (&Apache::lonnet::allowed('vsa',
  342: 					 $env{'request.course.id'}) ||
  343: 		&Apache::lonnet::allowed('vsa',
  344: 					 $env{'request.course.id'}.'/'.
  345: 					 $env{'request.course.sec'})) {
  346: 		$r->print(&Apache::loncommon::track_student_link
  347: 			  ('View recent activity by this student',
  348: 			   $cnum,$cdom).('&nbsp;'x2));
  349: 	    }
  350: 	    $r->print(&Apache::loncommon::noteswrapper('Add Records',$cnum,$cdom));
  351: 	} else {
  352: 	    $r->print('\\\\\textbf{'.&mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'}\\\\'.&mt('Shared by course faculty and staff').'\\\\\\\\');
  353: 	    &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  354: 	}
  355:     }
  356:     if ($target ne 'tex') {
  357:         if ($env{'form.popup'}) {
  358:             $r->print('<p><a href="javascript:window.close()">'.&mt('Close window').'</a>');
  359:         }
  360: 	$r->print('<br />'.&mt('Last updated').': '.$lastmod);
  361: 
  362: 	$r->print(&Apache::loncommon::end_page());
  363:     } else {
  364: 	$r->print('\end{document}');
  365:     }
  366: 
  367:   
  368: 	
  369:     return OK;
  370: }
  371: 
  372: sub in_course {
  373:     my ($udom,$uname,$cdom,$cnum,$type) = @_;
  374:     $type ||= 'any';
  375:     if (!defined($cdom) || !defined($cnum)) {
  376: 	my $cid  = $env{'request.course.id'};
  377: 	$cdom = $env{'course.'.$cid.'.domain'};
  378: 	$cnum = $env{'course.'.$cid.'.num'};
  379:     }
  380:     my %roles = &Apache::lonnet::dump('roles',$udom,$uname);
  381:     my @course_roles = grep(m{^/\Q$cdom\E/\Q$cnum\E[/_]}, keys(%roles));
  382:     return 0 if (!@course_roles);
  383:     return 1 if ($type eq 'any');
  384:     my $now = time();
  385:     foreach my $role (@course_roles) {
  386: 	my (undef,$role_end,$role_start)=split(/\_/,$roles{$role});
  387: 	my $status = 'active';
  388: 	if ($role_start > 0 && $now < $role_start) {
  389: 	    $status = 'future';
  390: 	}
  391: 	if ($role_end > 0 && $now > $role_end) {
  392: 	    $status = 'previous';
  393: 	}
  394: 	return 1 if ($status eq $type);
  395:     }
  396:     return 0;
  397: }
  398: 
  399: sub aboutme_info {
  400:     my ($r,$is_course) = @_;
  401:     my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
  402:     my $name;
  403:     if (!$is_course) {
  404:         $name = &Apache::loncommon::plainname($cnum,$cdom);
  405:     }
  406:     return ($cdom,$cnum,$name);
  407: }
  408: 
  409: sub print_portfiles_link {
  410:     my ($r,$is_course) = @_;
  411:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  412:     my $filecounts = &portfolio_files($r,'showlink',undef,$is_course,
  413:                                       $cdom,$cnum,$name);
  414:     my $query_string = &build_query_string();
  415:     my $output;
  416:     my %lt = &Apache::lonlocal::texthash(
  417:                          vpfi => 'Viewable portfolio files',
  418:                          vgpf => 'Viewable group portfolio files',
  419:                          difl => 'Display file listing',
  420:              );                     
  421:     if ($filecounts->{'both'} > 0) {
  422: 	$output = '<div class="ContentBoxSpecial"><h4 class="hcell">';
  423: 	$output .= ($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  424:         
  425: 	#$output = '<h4>'.($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  426:         $output .= '<a href="/adm/'.$cdom.'/'.$cnum.'/aboutme/portfolio'.
  427:                    $query_string.'">'.$lt{'difl'}.
  428:                    '</a><br /><br />';
  429:         if ($filecounts->{'both'} == 1) {
  430:             if ($is_course) {
  431:                 $output .= &mt('One group portfolio file is available.').'<ul>';
  432:             } else {
  433:                 $output .= &mt('One portfolio file owned by [_1] is available.',$name).'<ul>';
  434:             }
  435:         } else {
  436:             if ($is_course) {
  437:                 $output .= &mt('A total of [_1] group portfolio files are available.',$filecounts->{'both'}).'<ul>';
  438:             } else {
  439:                 $output .= &mt('A total of [_1] portfolio files owned by [_2] are available.',$filecounts->{'both'},$name).'<ul>';
  440:             }
  441:         }
  442:         if ($filecounts->{'withoutpass'}) {
  443: 	    $output .= '<li>'.&mt('[quant,_1,file is,files are] publicly accessible.',$filecounts->{'withoutpass'}).'</li>';
  444:         }
  445:         if ($filecounts->{'withpass'}) {
  446: 	    $output .= '<li>'.&mt('[quant,_1,file requires,files require] a passphrase for access.',$filecounts->{'withpass'}).'</li>';
  447:         }
  448:         $output .= '</ul>';
  449: 	$output .='</p>';
  450:     }
  451:     $r->print($output);
  452:     return;
  453: }
  454: 
  455: sub build_query_string {
  456:     my ($new_items) = @_;
  457:     my $query_string;
  458:     my @formelements = ('register'); 
  459:     my $new = 0;
  460:     if (ref($new_items) eq 'HASH') {
  461:         $new = 1;
  462:         if (!defined($new_items->{'forceedit'}) && 
  463:             !defined($new_items->{'forcestudent'})) {
  464:             push(@formelements,('forceedit','forcestudent'));
  465:         }
  466:     } else {
  467:         push(@formelements,('forceedit','forcestudent'));
  468:     }
  469:     foreach my $element (@formelements) {
  470:         if (exists($env{'form.'.$element})) {
  471:             if ((!$new) || (!defined($new_items->{$element}))) {
  472:                 $query_string .= '&amp;'.$element.'='.$env{'form.'.$element};
  473:             }
  474:         }
  475:     }
  476:     if ($new) {
  477:         foreach my $key (keys(%{$new_items})) {
  478:             $query_string .= '&amp;'.$key.'='.$new_items->{$key};
  479:         }
  480:     }
  481:     $query_string =~ s/^\&amp;/\?/;
  482:     return $query_string;
  483: }
  484: 
  485: sub display_portfolio_header {
  486:     my ($r,$is_course) = @_;
  487:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  488:     my $query_string = &build_query_string();
  489:     &Apache::lonhtmlcommon::clear_breadcrumbs();
  490:     my $forcestudent='';
  491:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  492: 
  493:     my $output;
  494:     if ($is_course) {
  495:         $output = 
  496:             &Apache::loncommon::start_page('Viewable group portfolio files',undef,
  497:                                             {'function' => $forcestudent,
  498:                                              'domain'   => $cdom,});
  499:         $output .= '<h3>'.&mt('Group Portfolio files').'</h3>';
  500:     } else {
  501:         $output  =
  502:             &Apache::loncommon::start_page('Viewable portfolio files',undef,
  503:                                             {'function' => $forcestudent,
  504:                                              'domain'   => $cdom,});
  505:         if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  506:             &Apache::lonhtmlcommon::add_breadcrumb
  507:                 ({href=>"/adm/$cdom/$cnum/aboutme".$query_string,
  508:                   text=>"Personal information - $name",
  509:                   title=>"Go to personal information page for $name"},                 {href=>"/adm/$cdom/$cnum/aboutme/portfolio",
  510:                   text=>"Viewable files - $name",
  511:                   title=>"Viewable portfolio files for $name"}
  512:             );
  513:             $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('Viewable portfolio files.'));
  514:         }
  515:         $output .= '<h3>'.&mt('Portfolio files for [_1]',$name).'</h3>';
  516:     }
  517:     $r->print($output);
  518:     return;
  519: }
  520: 
  521: sub display_portfolio_files {
  522:     my ($r,$is_course) = @_;
  523:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  524:     my %lt = ( withoutpass => 'passphrase not required',
  525: 	       withpass    => 'passphrase protected',
  526: 	       both        => 'all access types ',);
  527:     %lt = &Apache::lonlocal::texthash(%lt);
  528: 
  529:     my $portaccess = 'withoutpass';
  530:     if (exists($env{'form.portaccess'})) {
  531:         $portaccess = $env{'form.portaccess'};
  532:     }
  533: 
  534:     my $output = '<form action="'.&HTML::Entities::encode($r->uri,'<>&"')
  535: 	.'" name="displaystatus" method="post">'.
  536: 	&mt('File access type: ').'<select name="portaccess">';
  537:     foreach my $type ('withoutpass','withpass','both') {
  538:         $output .= '<option value="'.$type.'" ';
  539:         if ($portaccess eq $type) {
  540:             $output .= 'selected="selected"';
  541:         }
  542:         $output .= '>'.$lt{$type}.'</option>';
  543:     }
  544:     $output .= '</select>'."\n".
  545:                '<input type="submit" name="portaccessbutton" value="'.
  546:                &mt('Update display').'" />';
  547:     $output .= '</form><br /><br />';
  548:     $r->print($output);
  549:     my $filecounts = &portfolio_files($r,'listfiles',\%lt,$is_course,
  550:                                       $cdom,$cnum,$name);
  551:     if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  552:         my $query_string = &build_query_string();
  553:         $r->print('<br /><br /><a href="/adm/'.$cdom.'/'.$cnum.
  554:                   '/aboutme'.$query_string.'">');
  555:         if ($is_course) {
  556:             $r->print(&mt('Course Information page'));
  557:         } else {
  558:             $r->print(&mt('Information about [_1]',$name));
  559:         }
  560:         $r->print('</a>');
  561:     }
  562:     return;
  563: }
  564: 
  565: sub portfolio_files {
  566:     my ($r,$mode,$lt,$is_course,$cdom,$cnum,$name) = @_;
  567:     my $filecounts = {
  568:                        withpass    => 0,
  569:                        withoutpass => 0,
  570:                        both        => 0,
  571:                      };
  572:     my $current_permissions =
  573: 	&Apache::lonnet::get_portfile_permissions($cdom,$cnum);
  574:     my %access_controls = 
  575: 	&Apache::lonnet::get_access_controls($current_permissions);
  576:     my $portaccess;
  577:     if ($mode eq 'showlink') {
  578:         $portaccess = 'both';
  579:     } else {
  580:         $portaccess = 'withoutpass';
  581:         if (exists($env{'form.portaccess'})) {
  582:             $portaccess = $env{'form.portaccess'};
  583:         }
  584:     }
  585: 
  586:     my $diroutput;
  587:     if ($is_course) {
  588:         my %files_by_group;
  589:         foreach my $filename (sort(keys(%access_controls))) {
  590:             my ($group,$path) = split('/',$filename,2);
  591:             $files_by_group{$group}{$path} = $access_controls{$filename}; 
  592:         }
  593:         foreach my $group (sort(keys(%files_by_group))) {
  594:             my %fileshash;
  595:             my $grpout .= &build_hierarchy($r,$cdom,$cnum,$portaccess,
  596:                                            $is_course,$filecounts,$mode,
  597:                                            $files_by_group{$group},
  598:                                            \%fileshash,$group);
  599:             if ($grpout) {
  600:                 $diroutput .= '<h3>'.$group.'</h3>'.$grpout.'<br />';
  601:             }
  602:         }
  603:     } else {
  604:         my %allfileshash;
  605:         $diroutput = &build_hierarchy($r,$cdom,$cnum,$portaccess,$is_course,
  606:                                       $filecounts,$mode,\%access_controls,
  607:                                       \%allfileshash);
  608:     }
  609:     if ($mode eq 'listfiles') {
  610:         if ($filecounts->{'both'}) {
  611:              $r->print($diroutput);
  612:         } else {
  613:             my $access_text;
  614:             if (ref($lt) eq 'HASH') {
  615:                 $access_text = $lt->{$portaccess};   
  616:             }
  617:             $r->print(&mt('There are no available files of the specified access type: [_1]',$access_text));
  618:         }
  619:     }
  620:     return $filecounts;
  621: }
  622: 
  623: { 
  624:     my $count=0;
  625:     sub portfolio_table_start {
  626: 	$count=0;
  627: 	return '<table class="LC_aboutme_port">';
  628:     }
  629:     sub portfolio_row_start {
  630: 	$count++;
  631: 	my $class = ($count%2)?'LC_odd_row'
  632: 	                      :'LC_even_row';
  633: 	return '<tr class="'.$class.'">';
  634:     }
  635: }
  636: 
  637: sub build_hierarchy {
  638:     my ($r,$cdom,$cnum,$portaccess,$is_course,$filecounts,$mode,$access_info,
  639:         $allfileshash,$group) = @_;
  640:     foreach my $filename (sort(keys(%{$access_info}))) {
  641:         my $access_status =
  642:            &Apache::lonnet::get_portfolio_access($cdom,$cnum,$filename,$group,                                                 $$access_info{$filename});
  643:         if ($portaccess eq 'both') {
  644:             if (($access_status ne 'ok') &&
  645:                 ($access_status !~  /^[^:]+:guest_/)) {
  646:                 next;
  647:             }
  648:         } elsif ($portaccess eq 'withoutpass') {
  649:             if ($access_status ne 'ok') {
  650:                 next;
  651:             }
  652:         } elsif ($portaccess eq 'withpass') {
  653:             if ($access_status !~  /^[^:]+:guest_/) {
  654:                 next;
  655:             }
  656:         }
  657:         if ($mode eq 'listfiles') {
  658:             $filename =~ s/^\///;
  659:             my @pathitems = split('/',$filename);
  660:             my $lasthash = $allfileshash;
  661:             while (@pathitems > 1) {
  662:                 my $newlevel = shift(@pathitems);
  663:                 if (!exists($lasthash->{$newlevel})) {
  664:                     $lasthash->{$newlevel} = {};
  665:                 }
  666:                 $lasthash = $lasthash->{$newlevel};
  667:             }
  668:             $lasthash->{$pathitems[0]} = $filename;
  669:         }
  670:         if ($access_status eq 'ok') {
  671:             $filecounts->{'withoutpass'} ++;
  672:         } elsif ($access_status =~  /^[^:]+:guest_/) {
  673:             $filecounts->{'withpass'} ++;
  674:         }
  675:     }
  676:     $filecounts->{'both'} =  $filecounts->{'withoutpass'} +
  677:                               $filecounts->{'withpass'};
  678:     my $output;
  679:     if ($mode eq 'listfiles') {
  680:         if ($filecounts->{'both'} > 0) {
  681:             $output = &portfolio_table_start();
  682:             $output .= &parse_directory($r,0,$allfileshash,'',$is_course,
  683:                                         $group);
  684:             $output .= '</table>';
  685:         }
  686:     }
  687:     return $output;
  688: }
  689: 
  690: sub parse_directory {
  691:     my ($r,$depth,$currhash,$path,$is_course,$group) = @_;
  692:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  693:     $depth++;
  694:     my $output;
  695: 
  696:     my $portfolio_root = &Apache::portfolio::get_portfolio_root($cdom,$cnum,
  697:                                                                 $group);
  698:     my $getpropath = 1;
  699:     my %dirlist = map {
  700: 	    ((split('&',$_,2))[0],1)
  701: 	} &Apache::lonnet::dirlist($portfolio_root.$path,$cdom,$cnum,$getpropath);
  702:     foreach my $item (sort(keys(%{$currhash}))) {
  703:         $output .= &portfolio_row_start();
  704:         $output .= '<td style="padding-left: '.($depth*25).'px">';
  705:         if (ref($currhash->{$item}) eq 'HASH') {
  706:             my $title=&HTML::Entities::encode($item,'<>&"');
  707:             $output .= '<img src="'.&Apache::loncommon::lonhttpdurl("/adm/lonIcons/navmap.folder.open.gif").'" alt="'.&mt('Folder').' '.$title.'" class="LC_icon" />&nbsp;'.$title;
  708: 	    $output .= '</td><td></td></tr>';
  709:             $output .= &parse_directory($r,$depth,$currhash->{$item},
  710: 					$path.'/'.$item,$is_course,$group);
  711:         } else {
  712: 	    my $file_name; 
  713: 	    if ($currhash->{$item} =~ m|/([^/]+)$|) {
  714: 		$file_name = $1;
  715: 	    } else {
  716: 		$file_name = $currhash->{$item};
  717: 	    }
  718: 	    my $have_meta = exists($dirlist{$file_name.'.meta'});
  719:             my $url;
  720:             if ($is_course) {
  721:                 $url = '/uploaded/'.$cdom.'/'.$cnum.'/groups/'.$group.
  722:                        '/portfolio/'.$currhash->{$item};
  723:             } else { 
  724: 	        $url = '/uploaded/'.$cdom.'/'.$cnum.'/portfolio/'.
  725: 		       $currhash->{$item};
  726:             }
  727:             my $showname;
  728: 	    if ($have_meta) {
  729: 		$showname = &Apache::lonnet::metadata($url,'title');
  730: 	    }
  731: 	    if ($showname eq '') {
  732: 		$showname = $file_name;
  733: 	    } else {
  734: 		$showname = $file_name.' ('.$showname.')';
  735: 	    }
  736: 
  737:             $showname=&HTML::Entities::encode($showname,'<>&"');
  738:             $output .= '<a href="'.$url.'">'.
  739: 		'<img alt="" src="'.&Apache::loncommon::icon($currhash->{$item}).'" class="LC_icon" />'.
  740: 		'&nbsp;'.$showname.'</a>';
  741: 	    $output.='</td><td>';
  742: 	    if ($have_meta) {
  743: 		$output.= '<a href="'.$url.'.meta"><img alt="'.&mt('Catalog Information').'" src="'.
  744: 		&Apache::loncommon::lonhttpdurl('/res/adm/pages/catalog.gif').
  745: 		'" class="LC_icon" /></a>';
  746: 	    }
  747: 	    $output .= '</td></tr>';
  748:         }
  749:     }
  750:     return $output;
  751: }
  752: 
  753: sub aboutme_access {
  754:     my ($uname,$udom) = @_;
  755:     my $privcheck = $env{'request.course.id'};
  756:     my $sec;
  757:     if ($env{'request.course.sec'} ne '') {
  758:         $sec = $env{'request.course.sec'};
  759:         $privcheck .= '/'.$sec;
  760:     }
  761:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  762:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
  763:     if (($cdom eq '') || ($cnum eq '')) {
  764:         my %coursehash = &coursedescription($env{'request.course.id'});
  765:         $cdom = $coursehash{'domain'};
  766:         $cnum = $coursehash{'cnum'};
  767:     }
  768:     if ((&allowed('srm',$privcheck)) || (&allowed('dff',$privcheck))) {
  769:         if (&in_course($uname,$udom,$cnum,$cdom)) {
  770:             return 1;
  771:         }
  772:     }
  773:     return;
  774: }
  775: 
  776: 1;
  777: __END__

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