File:  [LON-CAPA] / loncom / interface / lonaboutme.pm
Revision 1.148: download - view: text, annotated - select for diffs
Mon Oct 17 12:41:30 2011 UTC (12 years, 6 months ago) by raeburn
Branches: MAIN
CVS tags: language_hyphenation_merge, language_hyphenation, HEAD, BZ4492-merge, BZ4492-feature_horizontal_radioresponse
- Change to way lonnet::dirlist() reports an error condition (i.e., no_host,
  con_lost, no_such_dir, empty etc.) when retrieving directory list information
  with ls3, ls2 or ls.
  - error is passed as second item in a pair of return values.
  - first item in return values is a reference to an array of actual files.

    1: # The LearningOnline Network
    2: # Personal Information Page
    3: #
    4: # $Id: lonaboutme.pm,v 1.148 2011/10/17 12:41:30 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: use Image::Magick;
   90: 
   91: sub handler {
   92:     my $r = shift;
   93:     &Apache::loncommon::content_type($r,'text/html');
   94:     $r->send_http_header;
   95:     return OK if $r->header_only;
   96:     my $target=$env{'form.grade_target'};
   97: # ------------------------------------------------------------ Print the screen
   98:     if ($target eq 'tex') {
   99:         $r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
  100:     }
  101:     my (undef,undef,$cdom,$cnum,undef,$action)=split(/\//,$r->uri);
  102:     my $is_course;
  103: # Is this even a user?
  104:     if (&Apache::lonnet::homeserver($cnum,$cdom) eq 'no_host') {
  105:         &Apache::loncommon::simple_error_page($r,'No info',
  106:             'No user information available');
  107:         return OK;
  108:     } else {
  109:         $is_course = &Apache::lonnet::is_course($cdom,$cnum);
  110:     }
  111: 
  112:     my $candisplay = 1;
  113:     if (!$is_course) {
  114:         if ($action ne 'portfolio') {
  115:             $candisplay = &Apache::lonnet::usertools_access($cnum,$cdom,'aboutme');
  116:             if ((!$candisplay) && ($env{'request.course.id'})) {
  117:                 $candisplay = &aboutme_access($cnum,$cdom);
  118:             }
  119:             if (!$candisplay) {
  120:                 if ($target eq 'tex') {
  121:                     $r->print('\noindent{\large\textbf{'.&mt('No user personal information page available').'}}\\\\\\\\');
  122:                 } else {
  123:                     $r->print(&Apache::loncommon::start_page("Personal Information Page"));
  124:                     $r->print('<h2>'.&mt('No user personal information page available') .'</h2>'.
  125:                         &mt('This is a result of one of the following:').'<ul>'.
  126:                         '<li>'.&mt('The administrator of this domain has disabled personal information page functionality for this specific user.').'</li>'.
  127:                         '<li>'.&mt('The domain has been configured to disable, by default, personal information page functionality for all users in the domain.').'</li>'.
  128:                         '</ul>');
  129:                     $r->print(&Apache::loncommon::end_page());
  130:                 }
  131:                 return OK;
  132:             }
  133:         }
  134:     }
  135: 
  136: # --------------------------------------------------------- The syllabus fields
  137:     my %syllabusfields=&Apache::lonlocal::texthash(
  138:        'aaa_contactinfo'   => 'Contact Information',
  139:        'bbb_aboutme'       => 'Personal Information',
  140:        'ccc_webreferences' => 'Web References');
  141: 
  142: # ------------------------------------------------------------ Get Query String
  143:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
  144:                         ['forceedit','forcestudent',
  145:                          'register','popup']);
  146: 
  147: # ----------------------------------------------- Available Portfolio file display
  148:     if (($target ne 'tex') && ($action eq 'portfolio')) {
  149:         &display_portfolio_header($r,$is_course);
  150:         if ((!$is_course) && (!&Apache::lonnet::usertools_access($cnum,$cdom,'portfolio'))) {
  151:             $r->print('<h2>'.&mt('No user portfolio available') .'</h2>'.
  152:                 &mt('This is a result of one of the following:').'<ul>'.
  153:                 '<li>'.&mt('The administrator of this domain has disabled portfolio functionality for this specific user.').'</li>'.
  154:                 '<li>'.&mt('The domain has been configured to disable, by default, portfolio functionality for all users in the domain.').'</li>'.
  155:                 '</ul>');
  156:         } else {
  157:             my ($blocked,$blocktext) =
  158:                 &Apache::loncommon::blocking_status('port',$cnum,$cdom);
  159:             if (!$blocked) {
  160:                 &display_portfolio_files($r,$is_course);
  161:             } else {
  162:                 $r->print($blocktext);
  163:             }
  164:         }
  165:         $r->print(&Apache::loncommon::end_page());
  166:         return OK;
  167:     }
  168: 
  169:     if ($is_course) {
  170:         if ($target ne 'tex') {
  171:             my $args = {'function'       => $env{'forcestudent'},
  172:                         'domain'         => $cdom};
  173:             if ($env{'form.register'}) {
  174:                 $args->{'force_register'} = $env{'form.register'};
  175:             } else {
  176:                 my %coursedescription = 
  177:                     &Apache::lonnet::coursedescription($cdom.'_'.$cnum);
  178:                 my $cdescr = $coursedescription{'description'};
  179:                 my $brcrum = [{href=>"/adm/$cdom/$cnum/aboutme",
  180:                                text=>&mt('Course Information - [_1]',$cdescr),
  181:                                no_mt=>1}
  182:                              ];
  183:                 $args->{'bread_crumbs'} = $brcrum;
  184:             }
  185:             my $start_page = &Apache::loncommon::start_page(
  186:                                  "Course Information",undef,$args);
  187:             $r->print($start_page);
  188:             $r->print('<h2>'.&mt('Group Portfolio').'</h2>');
  189:             &print_portfiles_link($r,$is_course);
  190:             $r->print(&Apache::loncommon::end_page());
  191:         }
  192:         return OK;
  193:     }
  194: 
  195: # --------------------------------------------------------------- Force Student
  196:     my $forcestudent='';
  197:     if ($env{'form.forcestudent'}) { $forcestudent='student'; };
  198: 
  199: #------------Get rights
  200:     my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
  201:      my %syllabus=&Apache::lonnet::dump('aboutme',$cdom,$cnum);
  202:     my $allowed=0;
  203:       my $privleged=$allowed=(($env{'user.name'} eq $cnum) &&
  204:                    ($env{'user.domain'} eq $cdom));
  205:     if ($forcestudent or $target eq 'tex') { $allowed=0; }
  206: 
  207: # --------------------------------------- There is such a user, get environment
  208: 
  209:     if ($target ne 'tex') {
  210:         my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
  211:         my $args = {'function' => undef,
  212:                     'domain'   => $cdom,
  213:                     'force_register' => $env{'form.register'},
  214:                    };
  215:         if ($env{'form.popup'}) { # Don't show breadcrumbs in popup window 
  216:             $args->{'no_nav_bar'} = 1;
  217:         } elsif (!$env{'form.register'}) { #Don't show breadcrumbs twice, when this page is part of course content and you call it
  218:             $args->{'bread_crumbs'} = [{href=>"/adm/$cdom/$cnum/aboutme",
  219:                                         text=>"Personal Information Page"}];
  220:         }
  221:         my $start_page = &Apache::loncommon::start_page('Personal Information Page',$rss_link,$args);
  222:         $r->print($start_page);
  223:    }
  224: 
  225: #----------------Print Functions
  226:     if ($target ne 'tex') {
  227:         my $functions=&Apache::lonhtmlcommon::start_funclist();
  228:         if ($allowed) {
  229:             my $query_string = &build_query_string(
  230:                                    {'forcestudent' => '1',
  231:                                     'popup' => $env{'form.popup'}});
  232:             $functions.=&Apache::lonhtmlcommon::add_item_funclist(
  233:                             '<a href="'.$r->uri.$query_string.'">'
  234:                            .&mt('Show Public View').'</a>'
  235:                            .&Apache::loncommon::help_open_topic(
  236:                                 'Uploaded_Templates_PublicView'));
  237:         } elsif ($privleged) {
  238:             my $query_string = &build_query_string(
  239:                                    {'forceedit' => '1',
  240:                                     'popup' => $env{'form.popup'}});
  241:             $functions.=&Apache::lonhtmlcommon::add_item_funclist(
  242:                             '<a href="'.$r->uri.$query_string.'">'
  243:                             .&mt('Edit').'</a>');
  244:         }
  245:         $functions.=&Apache::lonhtmlcommon::add_item_funclist(
  246:                         &Apache::lontemplate::send_message($r,$cnum,$cdom));
  247: 
  248:         if ($env{'request.course.id'} &&
  249:             &Apache::lonnet::allowed('srm',$env{'request.course.id'}) &&
  250:             &in_course($cdom,$cnum)) {
  251:             if (&Apache::lonnet::allowed('vsa', $env{'request.course.id'}) ||
  252:                 &Apache::lonnet::allowed('vsa', $env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
  253:                 $functions.=&Apache::lonhtmlcommon::add_item_funclist(
  254:                      &Apache::loncommon::track_student_link(
  255:                          'View recent activity by this student',$cnum,$cdom));
  256:             }
  257:             if (&Apache::lonnet::allowed('vgr', $env{'request.course.id'}) ||
  258:                 &Apache::lonnet::allowed('vgr', $env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
  259:                 $functions.=&Apache::lonhtmlcommon::add_item_funclist(
  260:                     &Apache::loncommon::slot_reservations_link(
  261:                         'Slot reservation history',$cnum,$cdom));
  262:             }
  263:             $functions.=&Apache::lonhtmlcommon::add_item_funclist(
  264:                            &Apache::loncommon::noteswrapper(
  265:                                &mt('Add Records'),$cnum,$cdom));
  266:         }
  267:         $functions.=&Apache::lonhtmlcommon::end_funclist();
  268:         $r->print(&Apache::loncommon::head_subbox($functions));
  269:     }
  270: 
  271: # Print Privacy Note
  272:     if ($target ne 'tex') {
  273:         #Print Privacy Note
  274:         if ($allowed) {
  275:             $r->print('<div class="LC_info">'
  276:                 .'<b>'.&mt('Privacy Note:').'</b> '
  277:                 .&mt('The information you submit can be viewed by anybody who is logged into LON-CAPA. Do not provide information that you are not ready to share publicly.')
  278:                 .'</div>'
  279:             );
  280:         }
  281:     }
  282: 
  283: #Print last modified
  284: 
  285:     if ($target ne 'tex') {
  286:         my $lastmod;
  287:         if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
  288:             $lastmod=$syllabus{'uploaded.lastmodified'};
  289:             $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
  290:             $r->print('<div class="LC_info">');
  291:              $r->print(&mt('Last updated').': '.$lastmod . '');
  292:             $r->print('</div>');
  293:         }
  294:     }
  295: #Print Help Text
  296:     if ($target ne 'tex') {
  297:         if($allowed){
  298:             $r->print(&Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')));
  299:         }
  300:     }
  301: 
  302: #------Print Headtitle
  303:      if ($target ne 'tex') {
  304:         $r->print('<div class="LC_Box">');
  305:         $r->print('<h2 class="LC_hcell">'.&Apache::loncommon::plainname($cnum,$cdom).'</h2>');
  306:          if ($courseenv{'nickname'}) {
  307:                $r->print('<h2>&quot;'.$courseenv{'nickname'}.'&quot;</h2>');
  308:         }
  309:         $r->print('<h3>'.&Apache::lonnet::domain($cdom,'description').'</h3>');
  310:      } else {
  311:         $r->print('\noindent{\large\textbf{'.&Apache::loncommon::plainname($cnum,$cdom).'}}\\\\\\\\');
  312:         $r->print('\textbf{'.&Apache::lonnet::domain($cdom,'description').'}\\\\');
  313:     }
  314: # does this user have privileges to post, etc?
  315: 
  316: 
  317:     my $query_string;
  318: 
  319:     if (($env{'form.uploaddoc.filename'}) &&
  320:           ($env{'form.storeupl'}) && ($allowed)) {
  321:         if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
  322:             if ($syllabus{'uploaded.photourl'}) {
  323:                 &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  324:             }
  325:             $syllabus{'uploaded.photourl'}=
  326:                 &Apache::lonnet::userfileupload('uploaddoc',undef,'aboutme',
  327:                     undef,undef,undef,undef,undef,undef,undef,'400','500');
  328:          }
  329:         $syllabus{'uploaded.lastmodified'}=time;
  330:         &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  331:     }
  332:     if ($allowed && $env{'form.delupl'}) {
  333:         if ($syllabus{'uploaded.photourl'}) {
  334:             &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
  335:             delete($syllabus{'uploaded.photourl'});
  336:             &Apache::lonnet::del('aboutme',['uploaded.photourl'],$cdom,$cnum);
  337:         }
  338:     }
  339:     if (($allowed) && ($env{'form.storesyl'})) {
  340:         foreach my $syl_field (keys(%syllabusfields)) {
  341:             my $field=$env{'form.'.$syl_field};
  342:             $field=~s/\s+$//s;
  343:             $field=&Apache::lonfeedback::clear_out_html($field,$env{'user.adv'});
  344:             $syllabus{$syl_field}=$field;
  345:         }
  346:         $syllabus{'uploaded.lastmodified'}=time;
  347:         &Apache::lonnet::put('aboutme',\%syllabus,$cdom,$cnum);
  348:     }
  349: 
  350:     my $image;
  351: # ---------------------------------------------------------------- Get syllabus
  352:     if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
  353:         if ($syllabus{'uploaded.photourl'}) {
  354:             &Apache::lonnet::allowuploaded('/adm/aboutme',$syllabus{'uploaded.photourl'});
  355: 
  356:             $image=qq|<img name="userPhoto" src="$syllabus{'uploaded.photourl'} " class="LC_AboutMe_Image" alt="Photo of the user" />|;
  357: 
  358:             if ($target eq 'tex') {
  359:                 $image=&Apache::lonxml::xmlparse($r,'tex',$image);
  360:             }
  361:         }
  362: 
  363:         if ($allowed) {
  364:             $r->print(
  365:                 '<form name="UploadPhoto" method="post" enctype="multipart/form-data" action="">'.
  366:                 '<h3>'.&mt('Upload a Photo').'</h3>'.
  367:                 '<p class="LC_info">'.
  368:                 &mt('LON-CAPA will automatically scale your uploaded file so the image will not exceed a width of 400px and a height of 500px.').'</p>'.
  369:                 '<input type="file" name="uploaddoc" size="50" />'.
  370:                 '<input type="submit" name="storeupl" value="'.&mt('Upload').'" />'.
  371:                 '<input type="hidden" name="popup" value="'.$env{'form.popup'}.'" />'.
  372:                 '</form>');
  373:             if ($syllabus{'uploaded.photourl'}) {
  374:                 $r->print('<form name="delPhoto" method="post" action="" ><input type="submit" name="delupl" value="'.&mt('Delete Photo').'" /> </form>')
  375:             }
  376:             $r->print('<p></p>');
  377:         }
  378: 
  379:         if($allowed) {
  380:             $r->print('<form name="lonaboutmeFields" method="post" action="" >');
  381:         }
  382: 
  383:         if ($target ne 'tex') { #print Image
  384:             $r->print($image.'<div class="LC_clear_float_footer"></div>');
  385: 
  386:         } #End Print Image
  387: 
  388:        #Print Content eg. Contactinfo aboutme,...
  389:         &Apache::lontemplate::print_aboutme_content_template($r,$allowed,$target,\%syllabusfields,\%syllabus);
  390:        #End Print Content
  391: 
  392:         if ($target ne 'tex') { #Begin Print RSS and portfiles
  393:             &print_portfiles_link($r,$is_course);
  394:             if (&Apache::lonrss::advertisefeeds($cnum,$cdom) ne '') {
  395:                 &Apache::lontemplate::print_start_template($r,'RSS Feeds and Blogs','LC_Box');
  396:                 $r->print(&Apache::lonrss::advertisefeeds($cnum,$cdom));
  397:                 &Apache::lontemplate::print_end_template($r);
  398:             }
  399: 
  400:         } #End  Print RSS and portfiles
  401: 
  402: 
  403:         if ($allowed) {
  404:             if ($env{'form.popup'}) {
  405:                 $r->print('<input type="hidden" name="popup" value="'.
  406:                     $env{'form.popup'}.'" />');
  407:             }
  408:             $r->print('</form>');
  409:         }
  410:         if ($target ne 'tex') {$r->print('<br />');} else {$r->print('\\\\');}
  411:     } else {
  412:         $r->print('<p>'.&mt('No personal information provided').'.</p>');
  413:     }
  414: 
  415:     if ($env{'request.course.id'}
  416:         && &Apache::lonnet::allowed('srm',$env{'request.course.id'})
  417:         && &in_course($cdom,$cnum)) {
  418:         if ($target ne 'tex') {
  419:             $r->print('<a name="coursecomment" />');
  420:             &Apache::lontemplate::print_start_template($r,&mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course'),'LC_Box');
  421:             $r->print('<span class="LC_info">');
  422:             $r->print(&mt('Shared by course faculty and staff').&Apache::loncommon::help_open_topic("Course_Face_To_Face_Records,Course_Critical_Message"));
  423:             $r->print('</span>');
  424:             &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom);
  425:             &Apache::lontemplate::print_end_template($r);
  426: 
  427:         } else {
  428:             $r->print('\\\\\textbf{'.&mt('User Notes, Records of Face-To-Face Discussions, and Critical Messages in Course').'}\\\\'.&mt('Shared by course faculty and staff').'\\\\\\\\');
  429:             &Apache::lonmsgdisplay::disfacetoface($r,$cnum,$cdom, 'tex');
  430:         }
  431:     }
  432:     if ($target ne 'tex') {
  433:         $r->print('</div>');
  434:         if ($env{'form.popup'}) {
  435:             $r->print('<p><a href="javascript:window.close()">'.&mt('Close window').'</a>');
  436:         }
  437:         $r->print(&Apache::loncommon::end_page());
  438:     } else {
  439:         $r->print('\end{document}');
  440:     }
  441: 
  442: 
  443: 
  444:     return OK;
  445: }
  446: 
  447: sub in_course {
  448:     my ($udom,$uname,$cdom,$cnum,$type) = @_;
  449:     $type ||= 'any';
  450:     if (!defined($cdom) || !defined($cnum)) {
  451:         my $cid  = $env{'request.course.id'};
  452:         $cdom = $env{'course.'.$cid.'.domain'};
  453:         $cnum = $env{'course.'.$cid.'.num'};
  454:     }
  455:     my $typesref;
  456:     if ($type eq 'all') {
  457:         $typesref = ['active','previous','future'];
  458:     } elsif ($type eq 'previous' || $type eq 'future') {
  459:         $typesref = [$type];
  460:     }
  461:     my %roles = &Apache::lonnet::get_my_roles($uname,$udom,'userroles',
  462:                                              $typesref,undef,[$cdom]);
  463:     my ($tmp) = keys(%roles);
  464:     return 0 if ($tmp =~ /^(con_lost|error|no_such_host)/i);
  465:     my @course_roles = grep(/^\Q$cnum\E:\Q$cdom\E:/, keys(%roles));
  466:     if (@course_roles > 0) {
  467:         return 1;
  468:     }
  469:     return 0;
  470: }
  471: 
  472: sub aboutme_info {
  473:     my ($r,$is_course) = @_;
  474:     my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
  475:     my $name;
  476:     if (!$is_course) {
  477:         $name = &Apache::loncommon::plainname($cnum,$cdom);
  478:     }
  479:     return ($cdom,$cnum,$name);
  480: }
  481: 
  482: sub print_portfiles_link {
  483:     my ($r,$is_course) = @_;
  484:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  485:     my $filecounts = &portfolio_files($r,'showlink',undef,$is_course,
  486:                                       $cdom,$cnum,$name);
  487:     my $query_string = &build_query_string();
  488:     my $output;
  489:     my %lt = &Apache::lonlocal::texthash(
  490:         'vpfi' => 'Viewable portfolio files',
  491:         'vgpf' => 'Viewable group portfolio files',
  492:         'difl' => 'Display file listing',
  493:     );
  494:     if ($filecounts->{'both'} > 0) {
  495:         $output = '<div class="LC_Box"><h4 class="LC_hcell">';
  496:         $output .= ($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  497: 
  498:        #$output = '<h4>'.($is_course?$lt{'vgpf'}:$lt{'vpfi'}).'</h4>';
  499:         $output .= '<a href="/adm/'.$cdom.'/'.$cnum.'/aboutme/portfolio'.
  500:             $query_string.'">'.$lt{'difl'}.
  501:             '</a><br /><br />';
  502:         if ($filecounts->{'both'} == 1) {
  503:             if ($is_course) {
  504:                 $output .= &mt('One group portfolio file is available.').'<ul>';
  505:             } else {
  506:                 $output .= &mt('One portfolio file owned by [_1] is available.',$name).'<ul>';
  507:             }
  508:         } else {
  509:             if ($is_course) {
  510:                 $output .= &mt('A total of [_1] group portfolio files are available.',$filecounts->{'both'}).'<ul>';
  511:             } else {
  512:                 $output .= &mt('A total of [_1] portfolio files owned by [_2] are available.',$filecounts->{'both'},$name).'<ul>';
  513:             }
  514:         }
  515:         if ($filecounts->{'withoutpass'}) {
  516:             $output .= '<li>'.&mt('[quant,_1,file is,files are] publicly accessible.',$filecounts->{'withoutpass'}).'</li>';
  517:         }
  518:         if ($filecounts->{'withpass'}) {
  519:             $output .= '<li>'.&mt('[quant,_1,file requires,files require] a passphrase for access.',$filecounts->{'withpass'}).'</li>';
  520:         }
  521:         $output .= '</ul>';
  522:         $output .= '</div>';
  523:     } elsif ($is_course) {
  524:         $output .= '<div class="LC_info">'.&mt('There are currently no publicly accessible or password protected group portfolio files.').'</div>'; 
  525:     }
  526:     $r->print($output);
  527:     return;
  528: }
  529: 
  530: sub build_query_string {
  531:     my ($new_items) = @_;
  532:     my $query_string;
  533:     my @formelements = ('register');
  534:     my $new = 0;
  535:     if (ref($new_items) eq 'HASH') {
  536:         $new = 1;
  537:         if (!defined($new_items->{'forceedit'}) &&
  538:             !defined($new_items->{'forcestudent'})) {
  539:             push(@formelements,('forceedit','forcestudent'));
  540:         }
  541:     } else {
  542:         push(@formelements,('forceedit','forcestudent'));
  543:     }
  544:     foreach my $element (@formelements) {
  545:         if (exists($env{'form.'.$element})) {
  546:             if ((!$new) || (!defined($new_items->{$element}))) {
  547:                 $query_string .= '&amp;'.$element.'='.$env{'form.'.$element};
  548:             }
  549:         }
  550:     }
  551:     if ($new) {
  552:         foreach my $key (keys(%{$new_items})) {
  553:             $query_string .= '&amp;'.$key.'='.$new_items->{$key};
  554:         }
  555:     }
  556:     $query_string =~ s/^\&amp;/\?/;
  557:     return $query_string;
  558: }
  559: 
  560: sub display_portfolio_header {
  561:     my ($r,$is_course) = @_;
  562:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  563:     my $query_string = &build_query_string();
  564:     my $args = {'domain' => $cdom};
  565:     if ($env{'form.forcestudent'}) {
  566:         $args->{'function'} = 'student';
  567:     }
  568:     my $output;
  569:     if ($is_course) {
  570:         if (($env{'request.course.id'} eq $cdom.'_'.$cnum) && 
  571:             ($env{'form.register'})) {
  572:             $args->{force_register} = $env{'form.register'};
  573:         } else {
  574:             my %coursedescription = &Apache::lonnet::coursedescription($cdom.'_'.$cnum);
  575:             my $cdescr = $coursedescription{'description'}; 
  576:             my $brcrum = [{href=>"/adm/$cdom/$cnum/aboutme".$query_string,
  577:                            text=>&mt('Course Information - [_1]',$cdescr),
  578:                            no_mt=>1},
  579:                           {href=>"/adm/$cdom/$cnum/aboutme/portfolio".$query_string,
  580:                            text=>'Viewable group portfolio files'}
  581:                          ];
  582:             $args->{bread_crumbs} = $brcrum;
  583:         }
  584:         $output = &Apache::loncommon::start_page('Viewable group portfolio files',undef,$args).
  585:                   '<h3>'.&mt('Group Portfolio files').'</h3>';
  586:     } else {
  587:         if ($env{'request.course.id'} && $env{'form.register'}) {
  588:             $args->{force_register} = $env{'form.register'};
  589:         } else {
  590:             my $brcrum = [{href  => "/adm/$cdom/$cnum/aboutme".$query_string,
  591:                           text  => &mt('Personal Information Page - [_1]',$name),
  592:                           title => &mt('Go to personal information page for [_1]',$name),
  593:                           no_mt => 1},
  594:                          {href  => "/adm/$cdom/$cnum/aboutme/portfolio".$query_string,
  595:                           text  => 'Viewable files',
  596:                           title => &mt('Viewable portfolio files for [_1]',$name),
  597:                           no_mt => 1}
  598:                          ];
  599:             $args->{bread_crumbs} = $brcrum;
  600:         } 
  601:         $output  = 
  602:             &Apache::loncommon::start_page('Viewable portfolio files',
  603:                                            undef,$args).
  604:             '<h3>'.&mt('Portfolio files for [_1]',$name).'</h3>';
  605:     }
  606:     $r->print($output);
  607:     return;
  608: }
  609: 
  610: sub display_portfolio_files {
  611:     my ($r,$is_course) = @_;
  612:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  613:     my %lt = &Apache::lonlocal::texthash(
  614:         'withoutpass' => 'passphrase not required',
  615:         'withpass'    => 'passphrase protected',
  616:         'both'        => 'all access types ',
  617:     );
  618: 
  619:     my $portaccess = 'withoutpass';
  620:     if (exists($env{'form.portaccess'})) {
  621:         $portaccess = $env{'form.portaccess'};
  622:     }
  623: 
  624:     my $output = '<form action="'.&HTML::Entities::encode($r->uri,'<>&"')
  625:         .'" name="displaystatus" method="post">'.
  626:         &mt('File access type: ').'<select name="portaccess">';
  627:     foreach my $type ('withoutpass','withpass','both') {
  628:         $output .= '<option value="'.$type.'" ';
  629:         if ($portaccess eq $type) {
  630:             $output .= 'selected="selected"';
  631:         }
  632:         $output .= '>'.$lt{$type}.'</option>';
  633:     }
  634:     $output .= '</select>'."\n";
  635:     if ($env{'form.register'}) {
  636:         $output .= '<input type="hidden" name="register" value="'.$env{'form.register'}.'" />'."\n";
  637:     }
  638:     $output .= '<input type="submit" name="portaccessbutton" value="'.
  639:                &mt('Update display').'" />'.
  640:                '</form><br /><br />';
  641:     $r->print($output);
  642:     my $filecounts = &portfolio_files($r,'listfiles',\%lt,$is_course,
  643:                                       $cdom,$cnum,$name);
  644:     if (!($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public')) {
  645:         if ($env{'request.course.id'} && $env{'form.register'}) {
  646:             my $query_string = &build_query_string();
  647:             $r->print('<br /><a href="/adm/'.$cdom.'/'.$cnum.
  648:                       '/aboutme'.$query_string.'">');
  649:             if ($is_course) {
  650:                 $r->print(&mt('Course Information page'));
  651:             } else {
  652:                 $r->print(&mt('Information about [_1]',$name));
  653:             }
  654:             $r->print('</a>');
  655:         }
  656:     }
  657:     return;
  658: }
  659: 
  660: sub portfolio_files {
  661:     my ($r,$mode,$lt,$is_course,$cdom,$cnum,$name) = @_;
  662:     my $filecounts = {
  663:                        withpass    => 0,
  664:                        withoutpass => 0,
  665:                        both        => 0,
  666:                      };
  667:     my $current_permissions =
  668:     &Apache::lonnet::get_portfile_permissions($cdom,$cnum);
  669:     my %access_controls =
  670:     &Apache::lonnet::get_access_controls($current_permissions);
  671:     my $portaccess;
  672:     if ($mode eq 'showlink') {
  673:         $portaccess = 'both';
  674:     } else {
  675:         $portaccess = 'withoutpass';
  676:         if (exists($env{'form.portaccess'})) {
  677:             $portaccess = $env{'form.portaccess'};
  678:         }
  679:     }
  680: 
  681:     my $diroutput;
  682:     if ($is_course) {
  683:         my %files_by_group;
  684:         foreach my $filename (sort(keys(%access_controls))) {
  685:             my ($group,$path) = split('/',$filename,2);
  686:             $files_by_group{$group}{$path} = $access_controls{$filename};
  687:         }
  688:         foreach my $group (sort(keys(%files_by_group))) {
  689:             my %fileshash;
  690:             my $grpout .= &build_hierarchy($r,$cdom,$cnum,$portaccess,
  691:                                            $is_course,$filecounts,$mode,
  692:                                            $files_by_group{$group},
  693:                                            \%fileshash,$group);
  694:             if ($grpout) {
  695:                 $diroutput .= '<h3>'.$group.'</h3>'.$grpout.'<br />';
  696:             }
  697:         }
  698:     } else {
  699:         my %allfileshash;
  700:         $diroutput = &build_hierarchy($r,$cdom,$cnum,$portaccess,$is_course,
  701:                                       $filecounts,$mode,\%access_controls,
  702:                                       \%allfileshash);
  703:     }
  704:     if ($mode eq 'listfiles') {
  705:         if ($filecounts->{'both'}) {
  706:              $r->print($diroutput);
  707:         } else {
  708:             my $access_text;
  709:             if (ref($lt) eq 'HASH') {
  710:                 $access_text = $lt->{$portaccess};
  711:             }
  712:             $r->print(&mt('There are no available files of the specified access type: [_1]',$access_text));
  713:         }
  714:     }
  715:     return $filecounts;
  716: }
  717: 
  718: sub build_hierarchy {
  719:     my ($r,$cdom,$cnum,$portaccess,$is_course,$filecounts,$mode,$access_info,
  720:         $allfileshash,$group) = @_;
  721:     foreach my $filename (sort(keys(%{$access_info}))) {
  722:         my $access_status =
  723:            &Apache::lonnet::get_portfolio_access($cdom,$cnum,$filename,$group,$$access_info{$filename});
  724:         if ($portaccess eq 'both') {
  725:             if (($access_status ne 'ok') &&
  726:                 ($access_status !~  /^[^:]+:guest_/)) {
  727:                 next;
  728:             }
  729:         } elsif ($portaccess eq 'withoutpass') {
  730:             if ($access_status ne 'ok') {
  731:                 next;
  732:             }
  733:         } elsif ($portaccess eq 'withpass') {
  734:             if ($access_status !~  /^[^:]+:guest_/) {
  735:                 next;
  736:             }
  737:         }
  738:         if ($mode eq 'listfiles') {
  739:             $filename =~ s/^\///;
  740:             my @pathitems = split('/',$filename);
  741:             my $lasthash = $allfileshash;
  742:             while (@pathitems > 1) {
  743:                 my $newlevel = shift(@pathitems);
  744:                 if (!exists($lasthash->{$newlevel})) {
  745:                     $lasthash->{$newlevel} = {};
  746:                 }
  747:                 $lasthash = $lasthash->{$newlevel};
  748:             }
  749:             $lasthash->{$pathitems[0]} = $filename;
  750:         }
  751:         if ($access_status eq 'ok') {
  752:             $filecounts->{'withoutpass'} ++;
  753:         } elsif ($access_status =~  /^[^:]+:guest_/) {
  754:             $filecounts->{'withpass'} ++;
  755:         }
  756:     }
  757:     $filecounts->{'both'} =  $filecounts->{'withoutpass'} +
  758:                               $filecounts->{'withpass'};
  759:     my $output;
  760:     if ($mode eq 'listfiles') {
  761:         if ($filecounts->{'both'} > 0) {
  762:             $output = &Apache::loncommon::start_data_table();
  763:             $output .= &parse_directory($r,0,$allfileshash,'',$is_course,
  764:                                         $group);
  765:             $output .= &Apache::loncommon::end_data_table();
  766:         }
  767:     }
  768:     return $output;
  769: }
  770: 
  771: sub parse_directory {
  772:     my ($r,$depth,$currhash,$path,$is_course,$group) = @_;
  773:     my ($cdom,$cnum,$name) = &aboutme_info($r,$is_course);
  774:     $depth++;
  775:     my $output;
  776: 
  777:     my $portfolio_root = &Apache::portfolio::get_portfolio_root($cdom,$cnum,
  778:                                                                 $group);
  779:     my $getpropath = 1;
  780:     my ($listref,$listerror) =
  781:         &Apache::lonnet::dirlist($portfolio_root.$path,$cdom,$cnum,$getpropath);
  782:     my %dirlist;
  783:     if (ref($listref) eq 'ARRAY') {
  784:         %dirlist = map { ((split('&',$_,2))[0],1) } @{$listref};
  785:     }
  786:     foreach my $item (sort(keys(%{$currhash}))) {
  787:         $output .= &Apache::loncommon::start_data_table_row();
  788:         $output .= '<td style="padding-left: '.($depth*25).'px">';
  789:         if (ref($currhash->{$item}) eq 'HASH') {
  790:             my $title=&HTML::Entities::encode($item,'<>&"');
  791:             $output .= '<img src="'.&Apache::loncommon::lonhttpdurl("/adm/lonIcons/navmap.folder.open.gif").'" alt="'.&mt('Folder').' '.$title.'" class="LC_icon" />&nbsp;'.$title;
  792:             $output .= '</td><td>&nbsp;</td>'
  793:                       .&Apache::loncommon::end_data_table_row();
  794:             $output .= &parse_directory($r,$depth,$currhash->{$item},
  795:                     $path.'/'.$item,$is_course,$group);
  796:         } else {
  797:             my $file_name;
  798:             if ($currhash->{$item} =~ m|/([^/]+)$|) {
  799:                 $file_name = $1;
  800:             } else {
  801:                 $file_name = $currhash->{$item};
  802:             }
  803:             my $have_meta = exists($dirlist{$file_name.'.meta'});
  804:             my $url;
  805:             if ($is_course) {
  806:                 $url = '/uploaded/'.$cdom.'/'.$cnum.'/groups/'.$group.
  807:                     '/portfolio/'.$currhash->{$item};
  808:             } else {
  809:                 $url = '/uploaded/'.$cdom.'/'.$cnum.'/portfolio/'.$currhash->{$item};
  810:             }
  811:             my $showname;
  812:             if ($have_meta) {
  813:                 $showname = &Apache::lonnet::metadata($url,'title');
  814:             }
  815:             if ($showname eq '') {
  816:                 $showname = $file_name;
  817:             } else {
  818:                 $showname = $file_name.' ('.$showname.')';
  819:             }
  820: 
  821:             $showname=&HTML::Entities::encode($showname,'<>&"');
  822:             $output .= '<a href="'.$url.'">'.
  823:                 '<img alt="" src="'.&Apache::loncommon::icon($currhash->{$item}).'" class="LC_icon" />'.
  824:                 '&nbsp;'.$showname.'</a>';
  825:             $output.='</td><td>';
  826:             if ($have_meta) {
  827:                 $output.= '<a href="'.$url.'.meta"><img alt="'.&mt('Metadata').'" src="'.
  828:                     &Apache::loncommon::lonhttpdurl('/res/adm/pages/catalog.png').
  829:                     '" class="LC_icon" /></a>';
  830:             }
  831:             $output .= '</td>'
  832:                 .&Apache::loncommon::end_data_table_row();
  833:         }
  834:     } 
  835:     return $output;
  836: }
  837: 
  838: sub aboutme_access {
  839:     my ($uname,$udom) = @_;
  840:     my $privcheck = $env{'request.course.id'};
  841:     my $sec;
  842:     if ($env{'request.course.sec'} ne '') {
  843:         $sec = $env{'request.course.sec'};
  844:         $privcheck .= '/'.$sec;
  845:     }
  846:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  847:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
  848:     if (($cdom eq '') || ($cnum eq '')) {
  849:         my %coursehash = &Apache::lonnet::coursedescription($env{'request.course.id'});
  850:         $cdom = $coursehash{'domain'};
  851:         $cnum = $coursehash{'cnum'};
  852:     }
  853:     if ((&Apache::lonnet::allowed('srm',$privcheck)) ||
  854:         (&Apache::lonnet::allowed('dff',$privcheck))) {
  855:         if (&in_course($uname,$udom,$cnum,$cdom)) {
  856:             return 1;
  857:         }
  858:     }
  859:     return;
  860: }
  861: 
  862: 1;
  863: __END__

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>