File:  [LON-CAPA] / loncom / interface / lonaboutme.pm
Revision 1.99: download - view: text, annotated - select for diffs
Thu Feb 19 17:32:39 2009 UTC (15 years, 4 months ago) by neumanie
Branches: MAIN
CVS tags: HEAD
Add a html fildset for site functions in lonaboutme,sylabus,simplepage.The functions are eg. show public view, edit,send message,.. .

    1: # The LearningOnline Network
    2: # Personal Information Page
    3: #
    4: # $Id: lonaboutme.pm,v 1.99 2009/02/19 17:32:39 neumanie Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: 
   29: =pod
   30: 
   31: =head1 NAME
   32: 
   33: pache::lonaboutme
   34: 
   35: =head1 SYNOPSIS
   36: 
   37: (empty)
   38: 
   39: This is part of the LearningOnline Network with CAPA project
   40: described at http://www.lon-capa.org.
   41: 
   42: =head1 OVERVIEW
   43: 
   44: (empty)
   45: 
   46: 
   47: =head1 SUBROUTINES
   48: 
   49: =over
   50: 
   51: =item handler()
   52: 
   53: =item in_course()
   54: 
   55: =item aboutme_info()
   56: 
   57: =item print_portfiles_link()
   58: 
   59: =item build_query_string()
   60: 
   61: =item display_portfolio_header()
   62: 
   63: =item display_portfolio_files()
   64: 
   65: =item portfolio_files()
   66: 
   67: =item build_hierarchy()
   68: 
   69: =item parse_directory()
   70: 
   71: =back
   72: 
   73: =cut
   74: 
   75: 
   76: package Apache::lonaboutme;
   77: 
   78: use strict;
   79: use Apache::Constants qw(:common);
   80: use Apache::loncommon;
   81: use Apache::lonnet;
   82: use Apache::lontexconvert;
   83: use Apache::lonfeedback;
   84: use Apache::lonrss();
   85: use Apache::lonlocal;
   86: use Apache::lonmsgdisplay();
   87: use Apache::lontemplate;
   88: use HTML::Entities();
   89: use Image::Magick;
   90: 
   91: sub handler {
   92:     my $r = shift;
   93:     &Apache::loncommon::content_type($r,'text/html');
   94:     $r->send_http_header;
   95:     return OK if $r->header_only;
   96:     my $target=$env{'form.grade_target'};
   97: # ------------------------------------------------------------ Print the screen
   98:     if ($target eq 'tex') {
   99: 	$r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
  100:     }
  101:     my (undef,undef,$cdom,$cnum,undef,$action)=split(/\//,$r->uri);
  102:     my $is_course;
  103: # Is this even a user?
  104:     if (&Apache::lonnet::homeserver($cnum,$cdom) eq 'no_host') {
  105: 	&Apache::loncommon::simple_error_page($r,'No info',
  106: 					      'No user information available');
  107:         return OK;
  108:     } else {
  109:         $is_course = &Apache::lonnet::is_course($cdom,$cnum);
  110:     }
  111: 
  112:     my $candisplay = 1;
  113:     if (!$is_course) {
  114:         if ($action ne 'portfolio') {
  115:             $candisplay = &Apache::lonnet::usertools_access($cnum,$cdom,'aboutme');
  116:             if ((!$candisplay) && ($env{'request.course.id'})) {
  117:                 $candisplay = &aboutme_access($cnum,$cdom);
  118:             }
  119:             if (!$candisplay) {
  120:                 if ($target eq 'tex') {
  121:                     $r->print('\noindent{\large\textbf{'.&mt('No user home page available').'}}\\\\\\\\');
  122:                 } else {
  123:                     $r->print(&Apache::loncommon::start_page("Personal Information Page"));
  124:                     $r->print('<h2>'.&mt('No user home page available') .'</h2>'.
  125:                               &mt('This is a result of one of the following:').'<ul>'.
  126:                               '<li>'.&mt('The administrator of this domain has disabled home page functionality for this specific user.').'</li>'.
  127:                               '<li>'.&mt('The domain has been configured to disable, by default, home page functionality for all users in the domain.').'</li>'.
  128:                               '</ul>');
  129:                     $r->print(&Apache::loncommon::end_page());
  130:                 }
  131:                 return OK;
  132:             }
  133:         }
  134:     }
  135: 
  136: # --------------------------------------------------------- The syllabus fields
  137:     my %syllabusfields=&Apache::lonlocal::texthash(
  138:        'aaa_contactinfo'   => 'Contact Information',
  139:        'bbb_aboutme'       => 'Personal Information Page',
  140:        'ccc_webreferences' => 'Web References');
  141: 
  142: # ------------------------------------------------------------ Get Query String
  143:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
  144: 					    ['forceedit','forcestudent',
  145: 					     'register','popup']);
  146: 
  147: # ----------------------------------------------- Available Portfolio file display 
  148:     if (($target ne 'tex') && ($action eq 'portfolio')) {
  149:         &display_portfolio_header($r,$is_course);
  150:         if ((!$is_course) && (!&Apache::lonnet::usertools_access($cnum,$cdom,'portfolio'))) {
  151:             $r->print('<h2>'.&mt('No user portfolio available') .'</h2>'.
  152:                       &mt('This is a result of one of the following:').'<ul>'.
  153:                       '<li>'.&mt('The administrator of this domain has disabled portfolio functionality for this specific user.').'</li>'.
  154:                       '<li>'.&mt('The domain has been configured to disable, by default, portfolio functionality for all users in the domain.').'</li>'.
  155:                       '</ul>');
  156:         } else {
  157:             my ($blocked,$blocktext) = 
  158:                 &Apache::loncommon::blocking_status('port',$cnum,$cdom);
  159:             if (!$blocked) {
  160:                 &display_portfolio_files($r,$is_course);
  161:             } else {
  162:                 $r->print($blocktext);
  163:             }
  164:         }
  165:         $r->print(&Apache::loncommon::end_page());
  166:         return OK;
  167:     }
  168: 
  169:     if ($is_course) {
  170:         if ($target ne 'tex') {
  171: 	    my $brcrum = [{href=>"/adm/navmaps",text=>"Navigate Course Contents"},
  172: 			  {href=>"/adm/aboutme",text=>"Course Information"}];
  173:             my $start_page =
  174:                 &Apache::loncommon::start_page(
  175:                     "Course Information",
  176:                      undef,
  177:                      {'function' => $env{'forcestudent'},
  178:                       'domain'   => $cdom,
  179:                       'force_register' => $env{'forceregister'},
  180:                       'bread_crumbs' => $brcrum});
  181:             $r->print($start_page);
  182:             $r->print('<h2>'.&mt('Group files').'</h2>');
  183:             &print_portfiles_link($r,$is_course);
  184:             $r->print(&Apache::loncommon::end_page());
  185:         }
  186:         return OK;
  187:     }
  188: 
  189: # --------------------------------------------------------------- Force Student
  190:     my $forcestudent='';
  191:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  192: 
  193:     my $forceregister = '';
  194:     if ($forcestudent eq '') {
  195:         $forceregister = $env{'form.register'};
  196:     }
  197:        
  198: # --------------------------------------- There is such a user, get environment
  199:     my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
  200:     if ($target ne 'tex') {
  201: 	my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
  202:         my $args = {'function' => $forcestudent,
  203:                     'domain'   => $cdom,
  204:                     'force_register' => $forceregister};
  205:         if ($env{'form.popup'}) {
  206:             $args->{'no_nav_bar'} = 1;
  207:         }
  208: 	$args->{'bread_crumbs'} = [{href=>"/adm/fhwfdev/$cnum/aboutme",text=>"Personal Information Page"}];
  209: 	my $start_page = 
  210: 	    &Apache::loncommon::start_page("Personal Information Page",$rss_link,$args);
  211: 	$r->print($start_page);
  212:         $r->print('<div class="LC_ContentBoxSpecial">');
  213: 	$r->print('<h2 class="LC_hcell">'.&Apache::loncommon::plainname($cnum,$cdom).'</h2>');
  214:     } else {
  215: 	$r->print('\noindent{\large\textbf{'.&Apache::loncommon::plainname($cnum,$cdom).'}}\\\\\\\\');
  216:     }
  217:     if ($courseenv{'nickname'}) {
  218:        $r->print(
  219:          '<h2>&quot;'.$courseenv{'nickname'}.
  220:          '&quot;</h2>');
  221:     }
  222:     if ($target ne 'tex') {
  223:         $r->print('<blockquote>');
  224: 	$r->print('<h3>'.&Apache::lonnet::domain($cdom,'description').'</h3>');#OLD SendMessage POS
  225:     } else {
  226: 	$r->print('\textbf{'.&Apache::lonnet::domain($cdom,'description').'}\\\\');
  227:     }
  228:     my %syllabus=&Apache::lonnet::dump('aboutme',$cdom,$cnum);
  229:     my $allowed=0;
  230: 
  231: # does this user have privileges to post, etc?
  232: 
  233:        my $privleged=$allowed=(($env{'user.name'} eq $cnum) && 
  234: 			       ($env{'user.domain'} eq $cdom));
  235:        if ($forcestudent or $target eq 'tex') { $allowed=0; }
  236: 	my $query_string; 
  237: 	
  238:        if ($allowed) {
  239:           
  240: 	   $r->print('<p><b>'.&mt('Privacy Note').':</b> '.
  241: 		     &mt('The information you submit can be viewed by anybody who is logged into LON-CAPA. Do not provide information that you are not ready to share publicly.'). '</p><p>'.              
  242: 		     &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')).'</p>');
  243:        }     
  244: 	
  245:       if (($env{'form.uploaddoc.filename'}) &&
  246:           ($env{'form.storeupl'}) && ($allowed)) {
  247:  	  if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
  248: 	      if ($syllabus{'uploaded.photourl'}) {
  249: 		  &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  250: 	      }
  251: 	      $syllabus{'uploaded.photourl'}=
  252:                  &Apache::lonnet::userphotoupload('uploaddoc','aboutme');
  253:  	  }
  254:           $syllabus{'uploaded.lastmodified'}=time;
  255:           &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  256:        }
  257:     if ($allowed && $env{'form.delupl'}) {
  258: 	if ($syllabus{'uploaded.photourl'}) {
  259: 	    &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  260: 	    delete($syllabus{'uploaded.photourl'});
  261: 	    &Apache::lonnet::del('aboutme',['uploaded.photourl'],$cdom,$cnum);
  262: 	}
  263:     }
  264:        if (($allowed) && ($env{'form.storesyl'})) {
  265: 	   foreach my $syl_field (keys(%syllabusfields)) {
  266:                my $field=$env{'form.'.$syl_field};
  267:                $field=~s/\s+$//s;
  268:                $field=&Apache::lonfeedback::clear_out_html($field,
  269:                                                            $env{'user.adv'});
  270: 	       $syllabus{$syl_field}=$field;
  271:            }
  272:            $syllabus{'uploaded.lastmodified'}=time;
  273:            &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  274:        }
  275: 
  276: my $lastmod;
  277: my $image; 
  278: # ---------------------------------------------------------------- Get syllabus
  279:     if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
  280:        $lastmod=$syllabus{'uploaded.lastmodified'};
  281:        $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
  282:  	$r->print('<br />'.&mt('Last updated').': '.$lastmod);
  283: 
  284: 
  285:        if ($syllabus{'uploaded.photourl'}) {
  286: 	   &Apache::lonnet::allowuploaded('/adm/aboutme',
  287: 					  $syllabus{'uploaded.photourl'});
  288: 	
  289:            #This call is to resize all "Personal Information" images in the LonCapa System. When its done, you can remove this line.
  290: 	   &Apache::lonnet::resizeImage(&Apache::lonnet::filelocation('',$syllabus{'uploaded.photourl'}));
  291: 	   #---End Resize---
  292: 
  293: 	   $image=qq{<img name="userPhoto" src="$syllabus{'uploaded.photourl'} " class="LC_AboutMe_Image" />};
  294: 	   
  295: 	   if ($target eq 'tex') {
  296: 	       $image=&Apache::lonxml::xmlparse($r,'tex',$image);
  297: 	   }
  298: 	
  299:        }
  300: 	if( $target ne 'tex'){
  301: 		 &Apache::lontemplate::print_start_page_functions($r);
  302:       		if($allowed){
  303: 			 $query_string = &build_query_string({'forcestudent' => '1','popup' => $env{'form.popup'}});		
  304: 			&Apache::lontemplate::print_functions_content($r,'<a href="'.$r->uri.$query_string.'">'.&mt('Show Public View').'</a>'.&Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView'));
  305:     		 }elsif($privleged){
  306: 			$query_string = &build_query_string({'forceedit' => '1','popup' => $env{'form.popup'}});
  307: 			 &Apache::lontemplate::print_functions_content($r,'<a href="'.$r->uri.$query_string.'">'. &mt('Edit').'</a>');
  308: 		}
  309: 		&Apache::lontemplate::print_functions_content($r,&Apache::lontemplate::send_message($r,$cnum,$cdom));
  310: 		 &Apache::lontemplate::print_end_page_functions($r);
  311: 	}
  312:        if ($allowed) {
  313:            $r->print(
  314: 	 '<form method="post" enctype="multipart/form-data">'.
  315:          '<h3>'.&mt('Upload a Photo').'</h3>'.
  316:          '<input type="file" name="uploaddoc" size="50" />'.
  317:          '<input type="submit" name="storeupl" value="'.&mt('Upload').'" />'.
  318:          '<input type="hidden" name="popup" value="'.$env{'form.popup'}.'" />'.
  319: 	 '</form><form method="post"><input type="submit" name="delupl" value="'.&mt('Delete Photo').'" /> </form><p>
  320: ');
  321: 
  322:        }
  323: 
  324: 	if($allowed) {
  325: 		$r->print('<form method="post">');
  326: 	}
  327: 
  328: 	 if($target ne 'tex') #print Image
  329:      	 {	
  330: 		&Apache::lontemplate::start_ContentBox($r);		
  331: 		#&Apache::lontemplate::send_message($r,$cnum,$cdom);
  332: 		&Apache::lontemplate::end_ContentBox($r);
  333: 		$r->print($image);		
  334: 		
  335: 	}#End Print Image
  336: 
  337: 	#Print Content eg. Contactinfo aboutme,...	
  338: 	&Apache::lontemplate::print_aboutme_content_template($r,$allowed,$target,\%syllabusfields,\%syllabus);	
  339:         #End Print Content
  340: 
  341:        if($target ne 'tex')#Begin Print RSS and portfiles
  342:        {	
  343: 				
  344: 		&print_portfiles_link($r,$is_course);
  345: 		if(&Apache::lonrss::advertisefeeds($cnum,$cdom) ne ''){
  346: 			$r->print('<div class="LC_ContentBoxSpecial">');
  347: 			$r->print('<h4 class="LC_hcell">'.'RSS Feeds and Blogs'.'</h4>');
  348: 			$r->print(&Apache::lonrss::advertisefeeds($cnum,$cdom));
  349: 			$r->print('</div>');
  350: 		}	
  351: 		
  352:        }#End  Print RSS and portfiles
  353: 
  354:        $r->print('</blockquote>');
  355:        $r->print('</div>');
  356:        if ($allowed) {
  357:            if ($env{'form.popup'}) {
  358:                $r->print('<input type="hidden" name="popup" value="'.
  359:                          $env{'form.popup'}.'" />');
  360:            }
  361: 	   $r->print('</form>');
  362:        }
  363:        if ($target ne 'tex') {$r->print('<br />');} else {$r->print('\\\\');}
  364:     } else {
  365: 	# &Apache::lontemplate::send_message($r,$cnum,$cdom);
  366:        $r->print('<p>'.&mt('No personal information provided').'.</p>');
  367:     }
  368:     
  369: 
  370:     if ($env{'request.course.id'}
  371: 	&& &Apache::lonnet::allowed('srm',$env{'request.course.id'})
  372: 	&& &in_course($cdom,$cnum)) {
  373: 	if ($target ne 'tex') {
  374: 	    $r->print('<a name="coursecomment" />');
  375: 	    $r->print('<hr /><h3>'.
  376: 		      &mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'</h3>'.
  377: 		      &mt('Shared by course faculty and staff').
  378: 		      &Apache::loncommon::help_open_topic("Course_Face_To_Face_Records,Course_Critical_Message").
  379: 		      '<br />');
  380: 	    &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  381: 	    $r->print('<hr />');
  382: 	    if (&Apache::lonnet::allowed('vsa',
  383: 					 $env{'request.course.id'}) ||
  384: 		&Apache::lonnet::allowed('vsa',
  385: 					 $env{'request.course.id'}.'/'.
  386: 					 $env{'request.course.sec'})) {
  387: 		$r->print(&Apache::loncommon::track_student_link
  388: 			  ('View recent activity by this student',
  389: 			   $cnum,$cdom).('&nbsp;'x2));
  390: 	    }
  391: 	    $r->print(&Apache::loncommon::noteswrapper(&mt('Add Records'),$cnum,$cdom));
  392: 	} else {
  393: 	    $r->print('\\\\\textbf{'.&mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'}\\\\'.&mt('Shared by course faculty and staff').'\\\\\\\\');
  394: 	    &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  395: 	}
  396:     }
  397:     if ($target ne 'tex') {
  398:         if ($env{'form.popup'}) {
  399:             $r->print('<p><a href="javascript:window.close()">'.&mt('Close window').'</a>');
  400:         }
  401: 	$r->print(&Apache::loncommon::end_page());
  402:     } else {
  403: 	$r->print('\end{document}');
  404:     }
  405: 
  406:   
  407: 	
  408:     return OK;
  409: }
  410: 
  411: sub in_course {
  412:     my ($udom,$uname,$cdom,$cnum,$type) = @_;
  413:     $type ||= 'any';
  414:     if (!defined($cdom) || !defined($cnum)) {
  415: 	my $cid  = $env{'request.course.id'};
  416: 	$cdom = $env{'course.'.$cid.'.domain'};
  417: 	$cnum = $env{'course.'.$cid.'.num'};
  418:     }
  419:     my %roles = &Apache::lonnet::dump('roles',$udom,$uname);
  420:     my @course_roles = grep(m{^/\Q$cdom\E/\Q$cnum\E[/_]}, keys(%roles));
  421:     return 0 if (!@course_roles);
  422:     return 1 if ($type eq 'any');
  423:     my $now = time();
  424:     foreach my $role (@course_roles) {
  425: 	my (undef,$role_end,$role_start)=split(/\_/,$roles{$role});
  426: 	my $status = 'active';
  427: 	if ($role_start > 0 && $now < $role_start) {
  428: 	    $status = 'future';
  429: 	}
  430: 	if ($role_end > 0 && $now > $role_end) {
  431: 	    $status = 'previous';
  432: 	}
  433: 	return 1 if ($status eq $type);
  434:     }
  435:     return 0;
  436: }
  437: 
  438: sub aboutme_info {
  439:     my ($r,$is_course) = @_;
  440:     my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
  441:     my $name;
  442:     if (!$is_course) {
  443:         $name = &Apache::loncommon::plainname($cnum,$cdom);
  444:     }
  445:     return ($cdom,$cnum,$name);
  446: }
  447: 
  448: sub print_portfiles_link {
  449:     my ($r,$is_course) = @_;
  450:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  451:     my $filecounts = &portfolio_files($r,'showlink',undef,$is_course,
  452:                                       $cdom,$cnum,$name);
  453:     my $query_string = &build_query_string();
  454:     my $output;
  455:     my %lt = &Apache::lonlocal::texthash(
  456:                          vpfi => 'Viewable portfolio files',
  457:                          vgpf => 'Viewable group portfolio files',
  458:                          difl => 'Display file listing',
  459:              );                     
  460:     if ($filecounts->{'both'} > 0) {
  461: 	$output = '<div class="LC_ContentBoxSpecial"><h4 class="LC_hcell">';
  462: 	$output .= ($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  463:         
  464: 	#$output = '<h4>'.($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  465:         $output .= '<a href="/adm/'.$cdom.'/'.$cnum.'/aboutme/portfolio'.
  466:                    $query_string.'">'.$lt{'difl'}.
  467:                    '</a><br /><br />';
  468:         if ($filecounts->{'both'} == 1) {
  469:             if ($is_course) {
  470:                 $output .= &mt('One group portfolio file is available.').'<ul>';
  471:             } else {
  472:                 $output .= &mt('One portfolio file owned by [_1] is available.',$name).'<ul>';
  473:             }
  474:         } else {
  475:             if ($is_course) {
  476:                 $output .= &mt('A total of [_1] group portfolio files are available.',$filecounts->{'both'}).'<ul>';
  477:             } else {
  478:                 $output .= &mt('A total of [_1] portfolio files owned by [_2] are available.',$filecounts->{'both'},$name).'<ul>';
  479:             }
  480:         }
  481:         if ($filecounts->{'withoutpass'}) {
  482: 	    $output .= '<li>'.&mt('[quant,_1,file is,files are] publicly accessible.',$filecounts->{'withoutpass'}).'</li>';
  483:         }
  484:         if ($filecounts->{'withpass'}) {
  485: 	    $output .= '<li>'.&mt('[quant,_1,file requires,files require] a passphrase for access.',$filecounts->{'withpass'}).'</li>';
  486:         }
  487:         $output .= '</ul>';
  488: 	$output .='</p>';
  489: 	$output .='</div>';
  490:     }
  491:     $r->print($output);
  492:     return;
  493: }
  494: 
  495: sub build_query_string {
  496:     my ($new_items) = @_;
  497:     my $query_string;
  498:     my @formelements = ('register'); 
  499:     my $new = 0;
  500:     if (ref($new_items) eq 'HASH') {
  501:         $new = 1;
  502:         if (!defined($new_items->{'forceedit'}) && 
  503:             !defined($new_items->{'forcestudent'})) {
  504:             push(@formelements,('forceedit','forcestudent'));
  505:         }
  506:     } else {
  507:         push(@formelements,('forceedit','forcestudent'));
  508:     }
  509:     foreach my $element (@formelements) {
  510:         if (exists($env{'form.'.$element})) {
  511:             if ((!$new) || (!defined($new_items->{$element}))) {
  512:                 $query_string .= '&amp;'.$element.'='.$env{'form.'.$element};
  513:             }
  514:         }
  515:     }
  516:     if ($new) {
  517:         foreach my $key (keys(%{$new_items})) {
  518:             $query_string .= '&amp;'.$key.'='.$new_items->{$key};
  519:         }
  520:     }
  521:     $query_string =~ s/^\&amp;/\?/;
  522:     return $query_string;
  523: }
  524: 
  525: sub display_portfolio_header {
  526:     my ($r,$is_course) = @_;
  527:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  528:     my $query_string = &build_query_string();
  529:     &Apache::lonhtmlcommon::clear_breadcrumbs();
  530:     my $forcestudent='';
  531:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  532: 
  533:     my $output;
  534:     if ($is_course) {
  535:         $output = 
  536:             &Apache::loncommon::start_page('Viewable group portfolio files',undef,
  537:                                             {'function' => $forcestudent,
  538:                                              'domain'   => $cdom,});
  539:         $output .= '<h3>'.&mt('Group Portfolio files').'</h3>';
  540:     } else {
  541:         $output  =
  542:             &Apache::loncommon::start_page('Viewable portfolio files',undef,
  543:                                             {'function' => $forcestudent,
  544:                                              'domain'   => $cdom,});
  545:         if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  546:             &Apache::lonhtmlcommon::add_breadcrumb
  547:                 ({href=>"/adm/$cdom/$cnum/aboutme".$query_string,
  548:                   text=>"Personal Information Page - $name",
  549:                   title=>"Go to personal information page for $name"},                 {href=>"/adm/$cdom/$cnum/aboutme/portfolio",
  550:                   text=>"Viewable files - $name",
  551:                   title=>"Viewable portfolio files for $name"}
  552:             );
  553:             $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('Viewable portfolio files.'));
  554:         }
  555:         $output .= '<h3>'.&mt('Portfolio files for [_1]',$name).'</h3>';
  556:     }
  557:     $r->print($output);
  558:     return;
  559: }
  560: 
  561: sub display_portfolio_files {
  562:     my ($r,$is_course) = @_;
  563:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  564:     my %lt = ( withoutpass => 'passphrase not required',
  565: 	       withpass    => 'passphrase protected',
  566: 	       both        => 'all access types ',);
  567:     %lt = &Apache::lonlocal::texthash(%lt);
  568: 
  569:     my $portaccess = 'withoutpass';
  570:     if (exists($env{'form.portaccess'})) {
  571:         $portaccess = $env{'form.portaccess'};
  572:     }
  573: 
  574:     my $output = '<form action="'.&HTML::Entities::encode($r->uri,'<>&"')
  575: 	.'" name="displaystatus" method="post">'.
  576: 	&mt('File access type: ').'<select name="portaccess">';
  577:     foreach my $type ('withoutpass','withpass','both') {
  578:         $output .= '<option value="'.$type.'" ';
  579:         if ($portaccess eq $type) {
  580:             $output .= 'selected="selected"';
  581:         }
  582:         $output .= '>'.$lt{$type}.'</option>';
  583:     }
  584:     $output .= '</select>'."\n".
  585:                '<input type="submit" name="portaccessbutton" value="'.
  586:                &mt('Update display').'" />';
  587:     $output .= '</form><br /><br />';
  588:     $r->print($output);
  589:     my $filecounts = &portfolio_files($r,'listfiles',\%lt,$is_course,
  590:                                       $cdom,$cnum,$name);
  591:     if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  592:         my $query_string = &build_query_string();
  593:         $r->print('<br /><br /><a href="/adm/'.$cdom.'/'.$cnum.
  594:                   '/aboutme'.$query_string.'">');
  595:         if ($is_course) {
  596:             $r->print(&mt('Course Information page'));
  597:         } else {
  598:             $r->print(&mt('Information about [_1]',$name));
  599:         }
  600:         $r->print('</a>');
  601:     }
  602:     return;
  603: }
  604: 
  605: sub portfolio_files {
  606:     my ($r,$mode,$lt,$is_course,$cdom,$cnum,$name) = @_;
  607:     my $filecounts = {
  608:                        withpass    => 0,
  609:                        withoutpass => 0,
  610:                        both        => 0,
  611:                      };
  612:     my $current_permissions =
  613: 	&Apache::lonnet::get_portfile_permissions($cdom,$cnum);
  614:     my %access_controls = 
  615: 	&Apache::lonnet::get_access_controls($current_permissions);
  616:     my $portaccess;
  617:     if ($mode eq 'showlink') {
  618:         $portaccess = 'both';
  619:     } else {
  620:         $portaccess = 'withoutpass';
  621:         if (exists($env{'form.portaccess'})) {
  622:             $portaccess = $env{'form.portaccess'};
  623:         }
  624:     }
  625: 
  626:     my $diroutput;
  627:     if ($is_course) {
  628:         my %files_by_group;
  629:         foreach my $filename (sort(keys(%access_controls))) {
  630:             my ($group,$path) = split('/',$filename,2);
  631:             $files_by_group{$group}{$path} = $access_controls{$filename}; 
  632:         }
  633:         foreach my $group (sort(keys(%files_by_group))) {
  634:             my %fileshash;
  635:             my $grpout .= &build_hierarchy($r,$cdom,$cnum,$portaccess,
  636:                                            $is_course,$filecounts,$mode,
  637:                                            $files_by_group{$group},
  638:                                            \%fileshash,$group);
  639:             if ($grpout) {
  640:                 $diroutput .= '<h3>'.$group.'</h3>'.$grpout.'<br />';
  641:             }
  642:         }
  643:     } else {
  644:         my %allfileshash;
  645:         $diroutput = &build_hierarchy($r,$cdom,$cnum,$portaccess,$is_course,
  646:                                       $filecounts,$mode,\%access_controls,
  647:                                       \%allfileshash);
  648:     }
  649:     if ($mode eq 'listfiles') {
  650:         if ($filecounts->{'both'}) {
  651:              $r->print($diroutput);
  652:         } else {
  653:             my $access_text;
  654:             if (ref($lt) eq 'HASH') {
  655:                 $access_text = $lt->{$portaccess};   
  656:             }
  657:             $r->print(&mt('There are no available files of the specified access type: [_1]',$access_text));
  658:         }
  659:     }
  660:     return $filecounts;
  661: }
  662: 
  663: { 
  664:     my $count=0;
  665:     sub portfolio_table_start {
  666: 	$count=0;
  667: 	return '<table class="LC_aboutme_port">';
  668:     }
  669:     sub portfolio_row_start {
  670: 	$count++;
  671: 	my $class = ($count%2)?'LC_odd_row'
  672: 	                      :'LC_even_row';
  673: 	return '<tr class="'.$class.'">';
  674:     }
  675: }
  676: 
  677: sub build_hierarchy {
  678:     my ($r,$cdom,$cnum,$portaccess,$is_course,$filecounts,$mode,$access_info,
  679:         $allfileshash,$group) = @_;
  680:     foreach my $filename (sort(keys(%{$access_info}))) {
  681:         my $access_status =
  682:            &Apache::lonnet::get_portfolio_access($cdom,$cnum,$filename,$group,                                                 $$access_info{$filename});
  683:         if ($portaccess eq 'both') {
  684:             if (($access_status ne 'ok') &&
  685:                 ($access_status !~  /^[^:]+:guest_/)) {
  686:                 next;
  687:             }
  688:         } elsif ($portaccess eq 'withoutpass') {
  689:             if ($access_status ne 'ok') {
  690:                 next;
  691:             }
  692:         } elsif ($portaccess eq 'withpass') {
  693:             if ($access_status !~  /^[^:]+:guest_/) {
  694:                 next;
  695:             }
  696:         }
  697:         if ($mode eq 'listfiles') {
  698:             $filename =~ s/^\///;
  699:             my @pathitems = split('/',$filename);
  700:             my $lasthash = $allfileshash;
  701:             while (@pathitems > 1) {
  702:                 my $newlevel = shift(@pathitems);
  703:                 if (!exists($lasthash->{$newlevel})) {
  704:                     $lasthash->{$newlevel} = {};
  705:                 }
  706:                 $lasthash = $lasthash->{$newlevel};
  707:             }
  708:             $lasthash->{$pathitems[0]} = $filename;
  709:         }
  710:         if ($access_status eq 'ok') {
  711:             $filecounts->{'withoutpass'} ++;
  712:         } elsif ($access_status =~  /^[^:]+:guest_/) {
  713:             $filecounts->{'withpass'} ++;
  714:         }
  715:     }
  716:     $filecounts->{'both'} =  $filecounts->{'withoutpass'} +
  717:                               $filecounts->{'withpass'};
  718:     my $output;
  719:     if ($mode eq 'listfiles') {
  720:         if ($filecounts->{'both'} > 0) {
  721:             $output = &portfolio_table_start();
  722:             $output .= &parse_directory($r,0,$allfileshash,'',$is_course,
  723:                                         $group);
  724:             $output .= '</table>';
  725:         }
  726:     }
  727:     return $output;
  728: }
  729: 
  730: sub parse_directory {
  731:     my ($r,$depth,$currhash,$path,$is_course,$group) = @_;
  732:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  733:     $depth++;
  734:     my $output;
  735: 
  736:     my $portfolio_root = &Apache::portfolio::get_portfolio_root($cdom,$cnum,
  737:                                                                 $group);
  738:     my $getpropath = 1;
  739:     my %dirlist = map {
  740: 	    ((split('&',$_,2))[0],1)
  741: 	} &Apache::lonnet::dirlist($portfolio_root.$path,$cdom,$cnum,$getpropath);
  742:     foreach my $item (sort(keys(%{$currhash}))) {
  743:         $output .= &portfolio_row_start();
  744:         $output .= '<td style="padding-left: '.($depth*25).'px">';
  745:         if (ref($currhash->{$item}) eq 'HASH') {
  746:             my $title=&HTML::Entities::encode($item,'<>&"');
  747:             $output .= '<img src="'.&Apache::loncommon::lonhttpdurl("/adm/lonIcons/navmap.folder.open.gif").'" alt="'.&mt('Folder').' '.$title.'" class="LC_icon" />&nbsp;'.$title;
  748: 	    $output .= '</td><td></td></tr>';
  749:             $output .= &parse_directory($r,$depth,$currhash->{$item},
  750: 					$path.'/'.$item,$is_course,$group);
  751:         } else {
  752: 	    my $file_name; 
  753: 	    if ($currhash->{$item} =~ m|/([^/]+)$|) {
  754: 		$file_name = $1;
  755: 	    } else {
  756: 		$file_name = $currhash->{$item};
  757: 	    }
  758: 	    my $have_meta = exists($dirlist{$file_name.'.meta'});
  759:             my $url;
  760:             if ($is_course) {
  761:                 $url = '/uploaded/'.$cdom.'/'.$cnum.'/groups/'.$group.
  762:                        '/portfolio/'.$currhash->{$item};
  763:             } else { 
  764: 	        $url = '/uploaded/'.$cdom.'/'.$cnum.'/portfolio/'.
  765: 		       $currhash->{$item};
  766:             }
  767:             my $showname;
  768: 	    if ($have_meta) {
  769: 		$showname = &Apache::lonnet::metadata($url,'title');
  770: 	    }
  771: 	    if ($showname eq '') {
  772: 		$showname = $file_name;
  773: 	    } else {
  774: 		$showname = $file_name.' ('.$showname.')';
  775: 	    }
  776: 
  777:             $showname=&HTML::Entities::encode($showname,'<>&"');
  778:             $output .= '<a href="'.$url.'">'.
  779: 		'<img alt="" src="'.&Apache::loncommon::icon($currhash->{$item}).'" class="LC_icon" />'.
  780: 		'&nbsp;'.$showname.'</a>';
  781: 	    $output.='</td><td>';
  782: 	    if ($have_meta) {
  783: 		$output.= '<a href="'.$url.'.meta"><img alt="'.&mt('Metadata').'" src="'.
  784: 		&Apache::loncommon::lonhttpdurl('/res/adm/pages/catalog.gif').
  785: 		'" class="LC_icon" /></a>';
  786: 	    }
  787: 	    $output .= '</td></tr>';
  788:         }
  789:     }
  790:     return $output;
  791: }
  792: 
  793: sub aboutme_access {
  794:     my ($uname,$udom) = @_;
  795:     my $privcheck = $env{'request.course.id'};
  796:     my $sec;
  797:     if ($env{'request.course.sec'} ne '') {
  798:         $sec = $env{'request.course.sec'};
  799:         $privcheck .= '/'.$sec;
  800:     }
  801:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  802:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
  803:     if (($cdom eq '') || ($cnum eq '')) {
  804:         my %coursehash = &coursedescription($env{'request.course.id'});
  805:         $cdom = $coursehash{'domain'};
  806:         $cnum = $coursehash{'cnum'};
  807:     }
  808:     if ((&Apache::lonnet::allowed('srm',$privcheck)) || 
  809:         (&Apache::lonnet::allowed('dff',$privcheck))) {
  810:         if (&in_course($uname,$udom,$cnum,$cdom)) {
  811:             return 1;
  812:         }
  813:     }
  814:     return;
  815: }
  816: 
  817: 1;
  818: __END__

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