File:  [LON-CAPA] / loncom / publisher / lonpubdir.pm
Revision 1.182: download - view: text, annotated - select for diffs
Tue Nov 28 22:28:05 2023 UTC (6 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD
- Include (Edit) link below filename for .txt, .css and .js files in directory
  listing in Authoring Space.

    1: # The LearningOnline Network with CAPA
    2: # Authoring Space Directory Lister
    3: #
    4: # $Id: lonpubdir.pm,v 1.182 2023/11/28 22:28:05 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: 
   30: package Apache::lonpubdir;
   31: 
   32: use strict;
   33: use Apache::File;
   34: use File::Copy;
   35: use Apache::Constants qw(:common :http :methods);
   36: use Apache::loncommon();
   37: use Apache::lonhtmlcommon();
   38: use Apache::londiff();
   39: use Apache::lonlocal;
   40: use Apache::lonmsg;
   41: use Apache::lonmenu;
   42: use Apache::lonnet;
   43: use LONCAPA qw(:DEFAULT :match);
   44: 
   45: sub handler {
   46: 
   47:     my $r=shift;
   48: 
   49:     # Validate access to the construction space and get username:domain.
   50: 
   51:     my ($uname,$udom)=&Apache::lonnet::constructaccess($r->uri);
   52:     unless (($uname) && ($udom)) {
   53:         return HTTP_NOT_ACCEPTABLE;
   54:     }
   55: 
   56: # ----------------------------------------------------------- Start page output
   57: 
   58:     my $fn=$r->filename;
   59:     $fn=~s/\/$//;
   60:     my $thisdisfn=$fn;
   61: 
   62:     my $docroot=$r->dir_config('lonDocRoot');     # Apache  londocument root.
   63:     if ($thisdisfn eq "$docroot/priv/$udom") {
   64:         if ((-d "/home/$uname/public_html/") && (!-e "$docroot/priv/$udom/$uname")) {
   65:             my ($version) = ($r->dir_config('lonVersion') =~ /^\'?(\d+\.\d+)\./);
   66:             &Apache::loncommon::content_type($r,'text/html');
   67:             $r->send_http_header;
   68: 
   69:             &Apache::lonhtmlcommon::clear_breadcrumbs();
   70:             $r->print(&Apache::loncommon::start_page('Authoring Space').
   71:                       '<div class="LC_error">'.
   72:                       '<br /><p>'.
   73:                       &mt('Your Authoring Space is currently in the location used by LON-CAPA version 2.10 and older, but your domain is using a newer LON-CAPA version ([_1]).',$version).'</p>'.
   74:                       '<p>'.
   75:                       &mt('Please ask your Domain Coordinator to move your Authoring Space to the new location.').
   76:                       '</p>'.
   77:                       '</div>'.
   78:                       &Apache::loncommon::end_page());
   79:             return OK;
   80:         }
   81:     }
   82:     $thisdisfn=~s/^\Q$docroot\E\/priv//;
   83: 
   84:     my $resdir=$docroot.'/res'.$thisdisfn; # Resource directory
   85:     my $targetdir='/res'.$thisdisfn; # Publication target directory.
   86:     my $linkdir='/priv'.$thisdisfn;      # Full URL name of constr space.
   87: 
   88:     my $cstr = 'author';
   89:     my ($crsauthor,$crstype);
   90:     if ($env{'request.course.id'}) {
   91:         my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
   92:         my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
   93:         if ($thisdisfn =~ m{^/\Q$cdom/$cnum\E}) {
   94:             $crsauthor = 1;
   95:             $cstr = 'course';
   96:             $crstype = &Apache::loncommon::course_type();
   97:         }
   98:     }
   99: 
  100:     my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
  101: 
  102:     my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
  103:     my $current_disk_usage = &Apache::lonnet::diskusage($udom,$uname,
  104:                                 "$londocroot/priv/$udom/$uname"); # expressed in kB
  105:     my $disk_quota = &Apache::loncommon::get_user_quota($uname,$udom,
  106:                                                  $cstr,$crstype); # expressed in MB
  107:     # Put out the start of page.
  108: 
  109:     &startpage($r, $uname, $udom, $thisdisfn, $current_disk_usage, $disk_quota, $crsauthor);
  110: 
  111:     if (!-d $fn) {
  112:         if (-e $fn) {
  113:             $r->print('<p class="LC_info">'.&mt('Requested item is a file not a directory.').'</p>');
  114:         } else {
  115:             $r->print('<p class="LC_info">'.&mt('The requested subdirectory does not exist.').'</p>');
  116:         }
  117:         $r->print(&Apache::loncommon::end_page());
  118:         return OK;
  119:     }
  120:     my @files;
  121:     if (opendir(DIR,$fn)) {
  122:         @files = grep(!/^\.+$/,readdir(DIR));
  123:         closedir(DIR);
  124:     } else {
  125:         $r->print('<p class="LC_error">'.&mt('Could not open directory.').'</p>');
  126:         $r->print(&Apache::loncommon::end_page());
  127:         return OK;
  128:     }
  129: 
  130:     # Put out actions for directory, browse/upload + new file page.
  131:     &dircontrols($r,$uname,$udom,$thisdisfn,$current_disk_usage,$disk_quota,$crsauthor);
  132:     &resourceactions($r,$uname,$udom,$thisdisfn); # Put out form used for printing/deletion etc.
  133: 
  134:     my $numdir = 0;
  135:     my $numres = 0;
  136: 
  137:     if ((@files == 0) && ($thisdisfn =~ m{^/$match_domain/$match_username})) {
  138:         if ($thisdisfn =~ m{^/$match_domain/$match_username$}) {
  139:             $r->print('<p class="LC_info">'.&mt('This Authoring Space is currently empty.').'</p>');
  140:         } else {
  141:             $r->print('<p class="LC_info">'.&mt('This subdirectory is currently empty.').'</p>');
  142:         }
  143:         $r->print(&Apache::loncommon::end_page());
  144:         return OK;
  145:     }
  146: 
  147:     # Retrieving value for "sortby" and "sortorder" from QUERY_STRING
  148:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
  149:         ['sortby','sortorder']);
  150: 
  151:     # Sort by name as default, not reversed
  152:     if (! exists($env{'form.sortby'})) { $env{'form.sortby'} = 'filename' }
  153:     if (! exists($env{'form.sortorder'})) { $env{'form.sortorder'} = '' }
  154:     my $sortby = $env{'form.sortby'};
  155:     my $sortorder = $env{'form.sortorder'};
  156: 
  157:     # Order in which columns are displayed from left to right
  158:     my @order = ('filetype','actions','filename','title',
  159:                     'pubstatus','cmtime','size');
  160: 
  161:     # Up and down arrows to indicate sort order
  162:     my @arrows = ('&nbsp;&#9650;','&nbsp;&#9660;','');
  163: 
  164:     # Default sort order and column title
  165:     my %columns = (
  166:         filetype =>     {
  167:                             order => 'ascending',
  168:                             text  => &mt('Type'),
  169:                         },
  170:         actions =>      {
  171:                             # Not sortable
  172:                             text  => &mt('Actions'),
  173:                         },
  174:         filename =>     {
  175:                             order => 'ascending',
  176:                             text  => &mt('Name'),
  177:                         },
  178:         title =>        {
  179:                             order => 'ascending',
  180:                             text  => &mt('Title'),
  181:                         },
  182:         pubstatus =>    {
  183:                             order => 'ascending',
  184:                             text  => &mt('Status'),
  185:                             colspan => '2',
  186:                         },
  187:         cmtime =>       {
  188:                             order => 'descending',
  189:                             text  => &mt('Last Modified'),
  190:                         },
  191:         size =>         {
  192:                             order => 'ascending',
  193:                             text  => &mt('Size').' (kB)',
  194:                         },
  195:     );
  196: 
  197:     # Print column headers
  198:     my $output = '';
  199:     foreach my $key (@order) {
  200:         my $idx;
  201:         # Append an up or down arrow to sorted column
  202:         if ($sortby eq $key) {
  203:             $idx = ($columns{$key}{order} eq 'ascending') ? 0:1;
  204:             if ($sortorder eq 'rev') { $idx ++; }
  205:             $idx = $idx%2;
  206:         } else { $idx = 2; } # No arrow if column is not sorted
  207:         $output .= (($columns{$key}{order}) ?
  208:             '<th'.($columns{$key}{colspan} ? ' colspan="'.$columns{$key}{colspan}.'"' : '')
  209:             .'><a href="'.$linkdir.'/?sortby='.$key.'&amp;sortorder='
  210:             .((($sortby eq $key) && ($sortorder ne 'rev')) ? 'rev' : '').'">'
  211:             .$columns{$key}{text}.$arrows[$idx].'</a></th>' :
  212:             '<th>'.$columns{$key}{text}.'</th>');
  213:     }
  214: 
  215: my $result = "<script type=\"text/javascript\">
  216:     sessionStorage.setItem('CSTRcache','".&prepareJsonData($uname,$udom,$thisdisfn)."');
  217:     localStorage.setItem('CSTRtrans', '".&prepareJsonTranslations()."');
  218: </script>";
  219:     $r->print($result);
  220: 
  221:     $r->print('<div id="currentFolder">'.&Apache::loncommon::start_data_table()
  222:         .'<tr><th colspan="8" id="searchtitle" style="display:none"></th></tr>'
  223:         .&Apache::loncommon::start_data_table_header_row() . $output
  224:         .&Apache::loncommon::end_data_table_header_row()
  225:     );
  226: 
  227:     my $dirptr=16384;		# Mask indicating a directory in stat.cmode.
  228:     my $filehash = {};
  229:     foreach my $filename (@files) {
  230:         # Skip .DS_Store, .DAV and hidden files
  231:         my ($extension) = ($filename=~/\.(\w+)$/);
  232:         next if (($filename eq '.DS_Store')
  233:                 || ($filename eq '.DAV')
  234:                 || (&Apache::loncommon::fileembstyle($extension) eq 'hdn')
  235:                 || ($filename =~ /^\._/));
  236: 
  237:         my ($cmode,$csize,$cmtime)=(stat($fn.'/'.$filename))[2,7,9];
  238:         my $linkfilename = &HTML::Entities::encode('/priv'.$thisdisfn.'/'.$filename,'<>&"');
  239:         # Identify type of file according to icon used
  240:         my ($filetype) = (&Apache::loncommon::icon($filename) =~ m{/(\w+).gif$});
  241:         my $cstr_dir = $r->dir_config('lonDocRoot').'/priv'.$thisdisfn;
  242:         my $meta_same = &isMetaSame($cstr_dir, $resdir, $filename);
  243: 
  244:         # Store size, title, and status for files but not directories
  245:         my $size = (!($cmode&$dirptr)) ? $csize/1024. : 0;
  246:         my ($status, $pubstatus, $title, $fulltitle);
  247:         if (!($cmode&$dirptr)) {
  248:             ($status, $pubstatus) = &getStatus($resdir, $targetdir, $cstr_dir,
  249:                 $filename, $linkfilename, $cmtime, $meta_same);
  250:             if (($crsauthor) && ($extension eq 'rights')) {
  251:                 $title = &getTitleString($targetdir.'/'.$filename);
  252:                 $fulltitle = $title;
  253:             } else {
  254:                 ($fulltitle, $title) = &getTitle($resdir, $targetdir, $filename,
  255:                                                  $linkfilename, $meta_same, \%bombs);
  256:             }
  257:         } else {
  258:             ($status, $pubstatus) = ('','');
  259:             ($fulltitle, $title) = ('','');
  260:         }
  261: 
  262:         # This hash will allow sorting
  263:         $filehash->{ $filename } = {
  264:             "cmtime"            => $cmtime,
  265:             "size"              => $size,
  266:             "cmode"             => $cmode,
  267:             "filetype"          => $filetype,
  268:             "title"             => $title,
  269:             "fulltitle"         => $fulltitle,
  270:             "status"            => $status,
  271:             "pubstatus"         => $pubstatus,
  272:             "linkfilename"      => $linkfilename,
  273:         }
  274:     }
  275: 
  276:     my @sorted_files;
  277:     # Sorting by something other than "Name".  Name is the secondary key.
  278:     if ($sortby =~ m{cmtime|size}) {    # Numeric fields
  279:         # First check if order should be reversed
  280:         if ($sortorder eq "rev") {
  281:             @sorted_files = sort {
  282:                 $filehash->{$a}->{$sortby} <=> $filehash->{$b}->{$sortby}
  283:                     or
  284:                 uc($a) cmp uc($b)
  285:             } (keys(%{$filehash}));
  286:         } else {
  287:             @sorted_files = sort {
  288:                 $filehash->{$b}->{$sortby} <=> $filehash->{$a}->{$sortby}
  289:                     or
  290:                 uc($a) cmp uc($b)
  291:             } (keys(%{$filehash}));
  292:         }
  293:     } elsif ($sortby =~ m{filetype|title|status}) {     # String fields
  294:         if ($sortorder eq "rev") {
  295:             @sorted_files = sort {
  296:                 $filehash->{$b}->{$sortby} cmp $filehash->{$a}->{$sortby}
  297:                     or
  298:                 uc($a) cmp uc($b)
  299:             } (keys(%{$filehash}));
  300:         } else {
  301:             @sorted_files = sort {
  302:                 $filehash->{$a}->{$sortby} cmp $filehash->{$b}->{$sortby}
  303:                     or
  304:                 uc($a) cmp uc($b)
  305:             } (keys(%{$filehash}));
  306:         }
  307: 
  308:     # Sort by "Name" is the default
  309:     } else {
  310:         if ($sortorder eq "rev") {
  311:             @sorted_files = sort {uc($b) cmp uc($a)} (keys(%{$filehash}));
  312:         } else {
  313:             @sorted_files = sort {uc($a) cmp uc($b)} (keys(%{$filehash}));
  314:         }
  315:     }
  316: 
  317:     # Print the sorted resources
  318:     my %editors = &Apache::loncommon::permitted_editors();
  319:     foreach my $filename (@sorted_files) {
  320:         if ($filehash->{$filename}->{"cmode"}&$dirptr) {        # Directories
  321:             &putdirectory($r, $thisdisfn, $linkdir, $filename,
  322:                 $filehash->{$filename}->{"cmtime"},
  323:                 $targetdir, \%bombs, \$numdir);
  324:         } else {                                                # Files
  325:             &putresource($r, $udom, $uname, $filename, $thisdisfn, $resdir,
  326:                 $targetdir, $linkdir, $crsauthor,
  327:                 $filehash->{$filename}->{"cmtime"},
  328:                 $filehash->{$filename}->{"size"}, \$numres,
  329:                 $filehash->{$filename}->{"linkfilename"},
  330:                 $filehash->{$filename}->{"fulltitle"},
  331:                 $filehash->{$filename}->{"status"},
  332:                 $filehash->{$filename}->{"pubstatus"},
  333:                 \%editors);
  334:         }
  335:     }
  336: 
  337:   $r->print(&Apache::loncommon::end_data_table()
  338:            .'</div><div id="otherplaces" style="display:none">'
  339:            .&Apache::loncommon::start_data_table()
  340:            .'<tr><th colspan="7">'.&mt('Results in other directories:').'</th></tr>'
  341:            .'<tr class="LC_header_row" id="otherplacestable">'
  342:            .'<th>'.&mt('Type').'</th>'
  343:            .'<th>'.&mt('Directory').'</th>'
  344:            .'<th>'.&mt('Name').'</th>'
  345:            .'<th>'.&mt('Title').'</th>'
  346:            .'<th colspan="2">'.&mt('Status').'</th>'
  347:            .'<th>'.&mt('Last Modified').'</th>'
  348:            .'</tr>'
  349:            .&Apache::loncommon::end_data_table()
  350:            .'</div>'
  351:            .&Apache::loncommon::end_page()
  352:   );
  353:   return OK;
  354: }
  355: 
  356: 
  357: 
  358: #   Output the header of the page.  This includes:
  359: #   - The HTML header
  360: #   - The H1/H3  stuff which includes the directory.
  361: #
  362: #     startpage($r, $uame, $udom, $thisdisfn, $current_disk_usage, $disk_quota);
  363: #      $r     - The apache request object.
  364: #      $uname - User name.
  365: #      $udom  - Domain name the user is logged in under.
  366: #      $thisdisfn - Displayable version of the filename.
  367: #      $current_disk_usage - User's current disk usage (in kB).
  368: #      $disk_quota - Disk quota for user's authoring space (in MB).
  369: #      $crstype - Course type, if this is for "course author"
  370: 
  371: sub startpage {
  372:     my ($r, $uname, $udom, $thisdisfn, $current_disk_usage, $disk_quota, $crsauthor) = @_;
  373:     &Apache::loncommon::content_type($r,'text/html');
  374:     $r->send_http_header;
  375: 
  376:     my $formaction='/priv'.$thisdisfn.'/';
  377:     $formaction=~s|/+|/|g;
  378: 
  379:     my $title;
  380:     if ($crsauthor) {
  381:         $title = 'Course Authoring';
  382:     } else {
  383:         $title = 'Authoring Space';
  384:         &Apache::lonhtmlcommon::store_recent('construct',$formaction,$formaction);
  385:     }
  386: 
  387:     &Apache::lonhtmlcommon::clear_breadcrumbs();
  388:     &Apache::lonhtmlcommon::add_breadcrumb({
  389:         'text'  => $title,
  390:         'href'  => &Apache::loncommon::authorspace($formaction),
  391:     });
  392:     # breadcrumbs (and tools) will be created
  393:     # in start_page->bodytag->innerregister
  394: 
  395:     $env{'request.noversionuri'}=$formaction;
  396:     my $js = '<script type="text/javascript"
  397:                 src="/res/adm/includes/file_upload.js"></script>';
  398:     $r->print(&Apache::loncommon::start_page($title, $js));
  399: 
  400:     $disk_quota = 1024 * $disk_quota; # convert from MB to kB
  401: 
  402:     my $headertext = &mt('Directory');
  403:     if ($crsauthor) {
  404:         $headertext = &mt('Course Authoring Directory');
  405:     }
  406:     $r->print(&Apache::loncommon::head_subbox(
  407:                      '<div style="float:right;padding-top:0;margin-top;0">'
  408:                     .&Apache::lonhtmlcommon::display_usage($current_disk_usage,
  409:                                                            $disk_quota,'authoring')
  410:                     .'</div>'
  411:                     .&Apache::loncommon::CSTR_pageheader('','',$headertext)));
  412: 
  413:     my $esc_thisdisfn = &Apache::loncommon::escape_single($thisdisfn);
  414:     my $doctitle = 'LON-CAPA '.&mt($title);
  415:     my $newname = &mt('New Name');
  416:     my $pubdirscript=(<<ENDPUBDIRSCRIPT);
  417: <script type="text/javascript">
  418: top.document.title = '$esc_thisdisfn/ - $doctitle';
  419: // Store directory location for menu bar to find
  420: 
  421: parent.lastknownpriv='/priv$esc_thisdisfn/';
  422: 
  423: // Confirmation dialogues
  424: 
  425:     function checkUpload(theform) {
  426:         if (theform.file == '') {
  427:             alert("Please use 'Browse..' to choose a file first, before uploading")
  428:             return
  429:         }
  430:         theform.submit()
  431:     }
  432: 
  433:     function SetPubDir(theform,printForm) {
  434:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "open") {
  435:             top.location = theform.openname.value
  436:             return
  437:         }
  438:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "publish") {
  439:             theform.submit();
  440:         }
  441:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "editmeta") {
  442:             top.location=theform.filename.value+'default.meta'
  443:         }
  444:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "printdir") {
  445:             theform.action = '/adm/printout'
  446:             theform.postdata.value = theform.filename.value
  447:             theform.submit()
  448:         }
  449:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "delete") {
  450:               var delform = document.delresource
  451:               delform.filename.value = theform.filename.value
  452:               delform.submit()
  453:         }
  454:         return
  455:     }
  456:     function SetResChoice(theform) {
  457:       var activity = theform.reschoice.options[theform.reschoice.selectedIndex].value
  458:       if ((activity == 'rename') || (activity == 'copy') || (activity == 'move')) {
  459:           changename(theform,activity)
  460:       }
  461:       if (activity == 'publish') {
  462:           var pubform = document.pubresource
  463:           pubform.filename.value = theform.filename.value
  464:           pubform.submit()
  465:       }
  466:       if (activity == 'delete') {
  467:           var delform = document.delresource
  468:           delform.filename.value = theform.filename.value
  469:           delform.submit()
  470:       }
  471:       if (activity == 'obsolete') {
  472:           var pubform = document.pubresource
  473:           pubform.filename.value = theform.filename.value
  474:           pubform.makeobsolete.value=1;
  475:           pubform.submit()
  476:       }
  477:       if (activity == 'print') {
  478:           document.printresource.postdata.value = theform.filename.value
  479:           document.printresource.submit()
  480:       }
  481:       if (activity == 'retrieve') {
  482:           document.retrieveres.filename.value = theform.filename.value
  483:           document.retrieveres.submit()
  484:       }
  485:       if (activity == 'cleanup') {
  486:           document.cleanup.filename.value = theform.filename.value
  487:           document.cleanup.submit()
  488:       }
  489:       return
  490:     }
  491:     function changename(theform,activity) {
  492:         var oldname=theform.dispfilename.value;
  493:         var newname=prompt('$newname',oldname);
  494:         if (newname == "" || !newname || newname == oldname)  {
  495:             return
  496:         }
  497:         document.moveresource.newfilename.value = newname
  498:         document.moveresource.filename.value = theform.filename.value
  499:         document.moveresource.action.value = activity
  500:         document.moveresource.submit();
  501:     }
  502: </script>
  503: ENDPUBDIRSCRIPT
  504:     $r->print($pubdirscript);
  505: }
  506: 
  507: sub dircontrols {
  508:     my ($r,$uname,$udom,$thisdisfn,$current_disk_usage,$disk_quota,$crsauthor) = @_;
  509:     my %lt=&Apache::lonlocal::texthash(
  510:                                        cnpd => 'Cannot publish directory',
  511:                                        cnrd => 'Cannot retrieve directory',
  512:                                        mcdi => 'Must create new subdirectory inside a directory',
  513:                                        pubr => 'Publish this Resource',
  514:                                        rtrv => 'Retrieve Old Version',
  515:                                        list => 'List Directory',
  516:                                        uplo => 'Upload file',
  517:                                        dele => 'Delete',
  518:                                        sela => 'Select Action',
  519:                                        nfil => 'New file',
  520:                                        nhtm => 'New HTML file',
  521:                                        nprb => 'New problem',
  522:                                        npag => 'New assembled page',
  523:                                        nseq => 'New assembled sequence',
  524:                                        ncrf => 'New custom rights file',
  525:                                        nsty => 'New style file',
  526:                                        nlib => 'New library file',
  527:                                        nbt  => 'New bridgetask file',
  528:                                        nsub => 'New subdirectory',
  529:                                        renm => 'Rename current file to',
  530:                                        move => 'Move current file to',
  531:                                        copy => 'Copy current file to',
  532:                                        type => 'Type Name Here',
  533:                                        go   => 'Go',
  534:                                        crea => 'Create a new subdirectory or document',
  535:                                        qs   => 'Quick name search',
  536:                                        cs   => 'Case Sensitive',
  537:                                        re   => 'Regular Expression',
  538: 				       updc => 'Upload a new document',
  539: 				       pick => 'Please select an action to perform using the new filename',
  540:                                        shcu => 'Shortcuts',
  541:                                       );
  542:     my %js_lt = &Apache::lonlocal::texthash(
  543:                                        nanf => 'Name of New File',
  544:                                        nans => 'Name of New Subdirectory',
  545:                                        psfn => 'Please specify file name',
  546:     );
  547:     &js_escape(\%js_lt);
  548:     my $mytype = $lt{'type'}; # avoid conflict with " and ' in javascript
  549:     # Calculate free space in bytes.
  550:     # $disk_quota is in MB and $current_disk_usage is in kB
  551:     my $free_space = 1024 * ((1024 * $disk_quota) - $current_disk_usage);
  552:     $r->printf(<<END,&Apache::loncommon::help_open_topic('Quicksearch'));
  553: <div class="LC_columnSection">
  554:     <div>
  555:       <fieldset style="display:inline">
  556:             <legend>$lt{'qs'}</legend>
  557:                 <script type="text/javascript" src="/adm/quicksearch/quicksearch.js"></script>
  558:                 <input type="text" id="quickfilter" placeholder="Enter search term" onkeyup="applyFilter()"/>
  559:                 <input type="button" value="Clear" onclick="document.getElementById(\'quickfilter\').value=\'\'; applyFilter()" />
  560:                 %s
  561:                 <br />
  562:                 <label><input type="checkbox" id="casesens" onchange="applyFilter()"/>$lt{'cs'}&nbsp;&nbsp;</label>
  563:                 <label><input type="checkbox" id="regex" onchange="applyFilter()"/>$lt{'re'}&nbsp;&nbsp;</label>
  564:         </fieldset>
  565:   </div>
  566: END
  567:     my %fileoptions = (
  568:                          none => "$lt{'sela'}:",
  569:                          newfile => "$lt{'nfil'}:",
  570:                          newhtmlfile => "$lt{'nhtm'}:",
  571:                          newproblemfile => "$lt{'nprb'}:",
  572:                          newdir => "$lt{'nsub'}:",
  573:                       );
  574:     $fileoptions{'select_form_order'} = ['none','newfile','newhtmlfile','newproblemfile'];
  575:     if ($crsauthor) {
  576:         push(@{$fileoptions{'select_form_order'}},'newdir');
  577:     } else {
  578:         my %extraoptions = (
  579:                               newpagefile => "$lt{'npag'}:",
  580:                               newsequencefile => "$lt{'nseq'}:",
  581:                               newrightsfile => "$lt{'ncrf'}:",
  582:                               newstyfile => "$lt{'nsty'}:",
  583:                               newtaskfile => "$lt{'nbt'}:",
  584:                               newlibraryfile => "$lt{'nlib'}:",
  585:         );
  586:         %fileoptions = (%fileoptions,%extraoptions);
  587:         push(@{$fileoptions{'select_form_order'}},('newpagefile','newsequencefile',
  588:                                                    'newrightsfile','newstyfile',
  589:                                                    'newtaskfile','newlibraryfile',
  590:                                                    'newdir'));
  591:     }
  592:     my $selectbox = &Apache::loncommon::select_form('none','action',\%fileoptions);
  593:     $r->print(<<END);
  594:   <div style="padding-bottom: 2px">
  595:     <form name="upublisher" enctype="multipart/form-data" method="post" action="/adm/upload">
  596:       <fieldset>
  597:         <legend>$lt{'updc'}</legend>
  598:         <input type="hidden" name="filename" value="/priv$thisdisfn/" />
  599:         <input type="file" name="upfile" class="LC_flUpload" />
  600:         <input type="hidden" id="LC_free_space" value="$free_space" />
  601:         <input type="button" value="$lt{'uplo'}"  onclick="checkUpload(this.form)" />
  602:       </fieldset>
  603:     </form>
  604:   </div>
  605: 
  606:   <div>
  607:     <form name="fileaction" method="post" action="/adm/cfile">
  608:       <fieldset>
  609:               <legend>$lt{'crea'}</legend>
  610: 	      <span class="LC_nobreak">
  611: 		<input type="hidden" name="filename" value="/priv$thisdisfn/" />
  612:                   <script type="text/javascript">
  613:                     function validate_go() {
  614:                         var selected = document.fileaction.action.selectedIndex;
  615:                         if (selected == 0) {
  616:                             alert('$lt{'pick'}');
  617:                         } else {
  618:                             document.fileaction.submit();
  619:                         }
  620:                     }
  621:                   </script>
  622: 		  $selectbox&nbsp;<input type="text" id="newnameid" name="newfilename" placeholder="$lt{'type'}" value="" onfocus="if (this.value == is.empty()) this.value=''" />&nbsp;<input type="button" value="Go" onclick="validate_go();" />
  623: 		<br />
  624:                 <span>$lt{'shcu'}:
  625:                  <input type="hidden" name="mode"/>
  626:                  <a href="javascript:void(0)" onclick="javascript:validate_action('blank')">
  627: 		    <img src="/adm/lonIcons/unknown.gif" title="Create blank problem file" alt="file icon" /></a>
  628:                  <a href="javascript:void(0)" onclick="javascript:validate_action('problemtempl')"> 
  629:                     <img src="/adm/lonIcons/problem.gif" title="Create new problem from template" alt="problem icon" /></a>
  630:                  <a href="javascript:void(0)" onclick="javascript:validate_action('blankhtml')"> 
  631:                     <img src="/adm/lonIcons/html.gif" title="Create new blank HTML file" alt="web page icon" /></a>
  632:                  <a href="javascript:void(0)" onclick="javascript:validate_action('folder')"> 
  633: 		    <img src="/adm/lonIcons/navmap.folder.closed.gif" title="Create new subdirectory" alt="folder icon" /></a>
  634:                 </span>
  635:                  <script type="text/javascript">
  636:                      function validate_action(action){
  637:                          if (document.getElementById('newnameid')) {
  638:                              if (document.getElementById('newnameid').value == '') {
  639:                                  var newname;
  640:                                  var prompttext = "$js_lt{'nanf'}";
  641:                                  if (action == 'folder') {
  642:                                      prompttext = "$js_lt{'nans'}";
  643:                                  }
  644:                                  newname=prompt(prompttext);
  645:                                  if (newname != '') {
  646:                                      document.getElementById('newnameid').value = newname;
  647:                                  }
  648:                              }
  649:                              if (document.getElementById('newnameid').value != '') {
  650:                                  if (action == 'blank') {
  651: 				     document.fileaction.action.value='newproblemfile';
  652: 				     document.fileaction.mode.value='blank';
  653: 			         } else if (action == 'problemtempl') {
  654: 				     document.fileaction.action.value='newproblemfile';
  655:                                      validate_go();
  656:                                  } else if (action == 'blankhtml') {
  657:                                      document.fileaction.action.value='newhtmlfile';
  658:                                      validate_go();
  659:                                  } else if (action == 'folder') {
  660:                                      document.fileaction.action.value='newdir';
  661:                                      document.fileaction.mode.value='folder';
  662:                                  }
  663:                                  fileaction.submit();
  664:                              } else {
  665:                                  alert("$js_lt{'psfn'}");
  666:                              }
  667:                          }
  668:                      }
  669:                  </script>
  670: 		 </span>
  671:       </fieldset>
  672:     </form>
  673:     </div>
  674: </div>
  675: END
  676: }
  677: 
  678: sub resourceactions {
  679:     my ($r,$uname,$udom,$thisdisfn) = @_;
  680:     $r->print(<<END);
  681:        <form name="moveresource" action="/adm/cfile" method="post">
  682:          <input type="hidden" name="filename" value="" />
  683:          <input type="hidden" name="newfilename" value="" />
  684:          <input type="hidden" name="action" value="" />
  685:        </form>
  686:        <form name="delresource" action="/adm/cfile" method="post">
  687:          <input type="hidden" name="filename" value="" />
  688:          <input type="hidden" name="action" value="delete" />
  689:        </form>
  690:        <form name="pubresource" action="/adm/publish" method="post">
  691:          <input type="hidden" name="filename" value="" />
  692:          <input type="hidden" name="makeobsolete" value="0" />
  693:        </form>
  694:        <form name="printresource" action="/adm/printout" method="post">
  695:            <input type="hidden" name="postdata" value="" />
  696:        </form>
  697:        <form name="retrieveres" action="/adm/retrieve" method="post">
  698:            <input type="hidden" name="filename" value="" />
  699:        </form>
  700:        <form name="cleanup" action="/adm/cleanup" method="post">
  701:            <input type="hidden" name="filename" value="" />
  702:        </form>
  703: END
  704: }
  705: 
  706: #
  707: #   Get the title string or "[untitled]" if the file has no title metadata:
  708: #   Without the latter substitution, it's impossible to examine metadata for
  709: #   untitled resources.  Resources may be legitimately untitled, to prevent
  710: #   searches from locating them.
  711: #
  712: #   $str = getTitleString($fullname);
  713: #       $fullname - Fully qualified filename to check.
  714: #
  715: sub getTitleString {
  716:     my $fullname = shift;
  717:     my $title    = &Apache::lonnet::metadata($fullname, 'title');
  718: 
  719:     unless ($title) {
  720: 	$title = "[".&mt('untitled')."]";
  721:     }
  722:     return $title;
  723: }
  724: 
  725: sub getCopyRightString {
  726:     my $fullname = shift;
  727:     return &Apache::lonnet::metadata($fullname, 'copyright');
  728: }
  729: 
  730: sub getSourceRightString {
  731:     my $fullname = shift;
  732:     return &Apache::lonnet::metadata($fullname, 'sourceavail');
  733: }
  734: #
  735: #  Put out a directory table row:
  736: #    putdirectory(r, base, here, dirname, modtime, targetdir, bombs, numdir)
  737: #      r         - Apache request object.
  738: #      reqfile   - File in request.
  739: #      here      - Where we are in directory tree.
  740: #      dirname   - Name of directory special file.
  741: #      modtime   - Encoded modification time.
  742: #      targetdir - Publication target directory.
  743: #      bombs     - Reference to hash of URLs with runtime error messages.
  744: #      numdir    - Reference to scalar used to track number of sub-directories
  745: #                  in directory (used in form name for each "actions" dropdown).
  746: #
  747: sub putdirectory {
  748:     my ($r, $reqfile, $here, $dirname, $modtime, $targetdir, $bombs, $numdir) = @_;
  749: 
  750: # construct the display filename: the directory name unless ..:
  751: 
  752:     my $actionitem;
  753: 
  754:     my $disfilename = $dirname;
  755: # Don't display directory itself, and there is no way up from root directory
  756:     unless ((($dirname eq '..') && ($reqfile=~/^\/[^\/]+\/[^\/]+$/)) || ($dirname eq '.')) {
  757:         my $kaputt=0;
  758:         if (ref($bombs) eq 'HASH') {
  759:             foreach my $key (keys(%{$bombs})) {
  760:                 my $currentdir = &Apache::lonnet::declutter("$targetdir/$disfilename");
  761:                 if (($key) =~ m{^\Q$currentdir\E/}) { $kaputt=1; last; }
  762:             }
  763:         }
  764: #
  765: # Get the metadata from that directory's default.meta to display titles
  766: #
  767: 	%Apache::lonpublisher::metadatafields=();
  768: 	%Apache::lonpublisher::metadatakeys=();
  769: 	&Apache::lonpublisher::metaeval(
  770:                  &Apache::lonnet::getfile($r->dir_config('lonDocRoot').$here.'/'.$dirname.'/default.meta')
  771:                                        );
  772:         if ($dirname eq '..') {
  773:             $actionitem = &mt('Go to ...');
  774:             $disfilename = '<i>'.&mt('Parent Directory').'</i>';
  775:         } else {
  776:             $actionitem =
  777:                     '<form name="dirselect_'.$$numdir.
  778:                     '" action="/adm/publish">'.
  779:                     '<select name="diraction" onchange="SetPubDir(this.form,document)">'.
  780:                       '<option selected="selected">'.&mt('Select action').'</option>'.
  781:                       '<option value="open">'.&mt('Open').'</option>'.
  782:                       '<option value="publish">'.&mt('Publish').'</option>'.
  783:                       '<option value="editmeta">'.&mt('Edit Metadata').'</option>'.
  784:                       '<option value="printdir">'.&mt('Print directory').'</option>'.
  785:                       '<option value="delete">'.&mt('Delete directory').'</option>'.
  786:                     '</select>'.
  787:                      '<input type="hidden" name="filename" value="'.&HTML::Entities::encode($here.'/'.$dirname,'<>&"').'/" />'.
  788:                      '<input type="hidden" name="openname" value="'.$here.'/'.$dirname.'/" />'.
  789:                      '<input type="hidden" name="postdata" value="" />'.
  790:                    '</form>';
  791:             $$numdir ++;
  792:         }
  793: 	$r->print('<tr class="LC_browser_folder">'.
  794: 		  '<td><img src="'.
  795: 		  $Apache::lonnet::perlvar{'lonIconsURL'}.'/navmap.folder.closed.gif" alt="folder" /></td>'.
  796: 		  '<td>'.$actionitem.'</td>'.
  797: 		  '<td><span class="LC_filename"><a href="'.&HTML::Entities::encode($here.'/'.$dirname,'<>&"').'/">'.
  798: 		  $disfilename.'</a></span></td>'.
  799: 		        '<td colspan="3">'.($kaputt?&Apache::lonhtmlcommon::authorbombs($targetdir.'/'.$disfilename.'/'):'').$Apache::lonpublisher::metadatafields{'title'});
  800: 	if ($Apache::lonpublisher::metadatafields{'subject'} ne '') {
  801: 	    $r->print(' <i>'.
  802: 		      $Apache::lonpublisher::metadatafields{'subject'}.
  803: 		      '</i> ');
  804: 	}
  805: 	$r->print($Apache::lonpublisher::metadatafields{'keywords'}.'</td>'.
  806: 		  '<td>'.&Apache::lonlocal::locallocaltime($modtime).'</td>'.
  807: 	          '<td></td>'.
  808: 		  "</tr>\n");
  809:     }
  810:     return;
  811: }
  812: 
  813: sub getTitle {
  814:     my ($resdir, $targetdir, $filename, $linkfilename, $meta_same, $bombs) = @_;
  815:     my $title='';
  816:     my $titleString = &getTitleString($targetdir.'/'.$filename);
  817:     if (-e $resdir.'/'.$filename) {
  818: 	$title = '<a href="'.$targetdir.'/'.$filename.
  819: 	    '.meta" target="cat">'.$titleString.'</a>';
  820:         if (!$meta_same) {
  821: 	    $title = &mt('Metadata Modified').'<br />'.$title.
  822: 		'<br />'.
  823:                 &Apache::loncommon::modal_link(
  824:                     '/adm/diff?filename='.$linkfilename.'.meta'.'&amp;versiontwo=priv',
  825:                     &mt('Metadata Diffs'),600,500);
  826: 	    $title.="\n".'<br />'.
  827:                 &Apache::loncommon::modal_link(
  828:                     '/adm/retrieve?filename='.$linkfilename.'.meta&amp;inhibitmenu=yes&amp;add_modal=yes',
  829:                     &mt('Retrieve Metadata'),600,500);
  830:         }
  831:     }
  832:     # Allow editing metadata of published and unpublished resources
  833:     $title .= "\n".'<br />' if ($title);
  834:     $title .= '<a href="'.$linkfilename.'.meta">'.
  835:               ($$bombs{&Apache::lonnet::declutter($targetdir.'/'.$filename)}?
  836:                   '<img src="/adm/lonMisc/bomb.gif" border="0" alt="'.&mt('bomb').'" />':
  837:                   &mt('Edit Metadata')).
  838:               '</a>';
  839: 
  840:     return ($title, $titleString);
  841: }
  842: 
  843: 
  844: sub isMetaSame {
  845:     my ($cstr_dir, $resdir, $filename) = @_;
  846:     my $meta_cmtime = (stat($cstr_dir.'/'.$filename.'.meta'))[9];
  847:     my $meta_rmtime = (stat($resdir.'/'.$filename.'.meta'))[9];
  848:     return (&Apache::londiff::are_different_files($resdir.'/'.$filename.'.meta',
  849:             $cstr_dir.'/'.$filename.'.meta') && $meta_rmtime < $meta_cmtime)
  850:         ? 0 : 1;
  851: }
  852: 
  853: sub getStatus {
  854:     my ($resdir, $targetdir, $cstr_dir, $filename,
  855:         $linkfilename, $crsauthor, $cmtime, $meta_same) = @_;
  856:     my $pubstatus = 'unpublished';
  857:     my $status = &mt('Unpublished');
  858: 
  859:     if (-e $resdir.'/'.$filename) {
  860:         my $same = 0;
  861:         if ((stat($resdir.'/'.$filename))[9] >= $cmtime) {
  862:             $same = 1;
  863:         } else {
  864:            if (&Apache::londiff::are_different_files($resdir.'/'.$filename,
  865: 						     $cstr_dir.'/'.$filename)) {
  866:               $same = 0;
  867:            } else {
  868:               $same = 1;
  869:            }
  870:         }
  871: 
  872:         my $rights_status =
  873:             &mt(&getCopyRightString($targetdir.'/'.$filename)).', ';
  874: 
  875:         my %lt_SourceRight = &Apache::lonlocal::texthash(
  876:                'open'   => 'Source: open',
  877:                'closed' => 'Source: closed',
  878:         );
  879:         $rights_status .=
  880:             $lt_SourceRight{&getSourceRightString($targetdir.'/'.$filename)};
  881:         if (($crsauthor) && ($filename =~ /\.rights$/)) {
  882:             $rights_status =~ s/,\s+$//;
  883:         }
  884: 	if ($same) {
  885: 	    if (&Apache::lonnet::metadata($targetdir.'/'.$filename,'obsolete')) {
  886:                 $pubstatus = 'obsolete';
  887: 		$status=&mt('Obsolete');
  888:             } else {
  889: 		if (!$meta_same) {
  890: 		    $pubstatus = 'metamodified';
  891: 		} else {
  892: 		    $pubstatus = 'published';
  893: 		}
  894: 		$status=&mt('Published').
  895: 		    '<br />'. $rights_status;
  896: 	    }
  897: 	} else {
  898:             $pubstatus = 'modified';
  899: 	    $status=&mt('Modified').
  900: 		'<br />'. $rights_status;
  901:             unless (($crsauthor) && ($filename =~ /\.rights$/)) {
  902: 	        if (&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {
  903: 		    $status.='<br />'.
  904:                              &Apache::loncommon::modal_link(
  905:                                  '/adm/diff?filename='.$linkfilename.'&amp;versiontwo=priv',
  906:                                  &mt('Diffs'),600,500);
  907: 	        }
  908: 	    }
  909: 	}
  910: 
  911:         unless (($crsauthor) && ($filename =~ /\.rights$/)) {
  912: 	    $status.="\n".'<br />'.
  913:                  &Apache::loncommon::modal_link(
  914:                      '/adm/retrieve?filename='.$linkfilename.'&amp;inhibitmenu=yes&amp;add_modal=yes',&mt('Retrieve'),600,500);
  915:         }
  916:     }
  917: 
  918:     return ($status, $pubstatus);
  919: }
  920: 
  921: 
  922: #
  923: #   Put a table row for a file resource.
  924: #
  925: sub putresource {
  926:     my ($r, $udom, $uname, $filename, $thisdisfn, $resdir,
  927:         $targetdir, $linkdir, $crsauthor, $cmtime, $size,
  928:         $numres, $linkfilename, $title, $status, $pubstatus,
  929:         $editors) = @_;
  930:     &Apache::lonnet::devalidate_cache_new('meta',$targetdir.'/'.$filename);
  931: 
  932:     my $editlink='';
  933:     my $editlink2='';
  934:     if ($filename=~/\.(xml|html|htm|xhtml|xhtm|sty|txt|css|js)$/) {
  935: 	$editlink=' <br />(<a href="'.$linkdir.'/'.$filename.'?editmode=Edit&amp;problemmode=edit">'.&mt('Edit').'</a>)';
  936:     }
  937:     if ($filename=~/$LONCAPA::assess_re/) {
  938:         if ($editors->{'xml'}) { 
  939: 	    $editlink=' (<a href="'.$linkdir.'/'.$filename.'?editmode=Edit&amp;problemmode=editxml">'.&mt('EditXML').'</a>)';
  940:         }
  941:         if ($editors->{'edit'}) {
  942: 	    $editlink2=' <br />(<a href="'.$linkdir.'/'.$filename.'?editmode=Edit&amp;problemmode=edit">'.&mt('Edit').'</a>)';
  943:         }
  944:     }
  945:     if ($filename=~/\.(xml|html|htm|xhtml|xhtm)$/ || $filename=~/$LONCAPA::assess_re/) {
  946:         if (($editors->{'daxe'}) &&
  947:             ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9)) {
  948:             my $daxeurl = '/daxepage'.$linkdir.'/'.$filename;
  949:             $editlink .= ' (<a href="'.$daxeurl.'">Daxe</a>)';
  950:         }
  951:     }
  952:     if ($filename=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm|sty)$/) {
  953: 	$editlink.=' (<a href="/adm/cleanup?filename='.$linkfilename.'">'.&mt('Clean Up').')</a>';
  954:     }
  955:     if ($filename=~/\.(zip|tar|bz2|gz|tar.gz|tar.bz2|tgz)$/) {
  956: 	$editlink=' (<a href="/adm/cfile?decompress='.$linkfilename.'">'.&mt('Decompress').'</a>)';
  957:     }
  958:     my $publish_button = (-e $resdir.'/'.$filename) ? &mt('Re-publish') : &mt('Publish');
  959:     my $pub_select = '';
  960:     unless (($crsauthor) && ($filename=~ /\.rights$/)) {
  961:         &create_pubselect($r,\$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres);
  962:     }
  963:     $r->print(&Apache::loncommon::start_data_table_row().
  964: 	      '<td>'.($filename=~/[\#\~]$/?'&nbsp;':
  965: 		      '<img src="'.&Apache::loncommon::icon($filename).'" alt="" />').'</td>'.
  966:               '<td>'.$pub_select.'</td>'.
  967: 	      '<td><span class="LC_filename">'.
  968: 	      '<a href="'.$linkdir.'/'.$filename.'">'.
  969:                $filename.'</a></span>'.$editlink2.$editlink.
  970: 	      '</td>'.
  971: 	      '<td>'.$title.'</td>'.
  972:               '<td class="LC_browser_file_'.$pubstatus.'">&nbsp;&nbsp;</td>'. # Display publication status
  973:               '<td>'.$status.'</td>'.
  974: 	      '<td>'.&Apache::lonlocal::locallocaltime($cmtime).'</td>'.
  975: 	      '<td>'.sprintf("%.1f",$size).'</td>'.
  976: 	      &Apache::loncommon::end_data_table_row()
  977:     );
  978:     return;
  979: }
  980: 
  981: sub create_pubselect {
  982:     my ($r,$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres) = @_;
  983:     $$pub_select = '
  984: <form name="resselect_'.$$numres.'" action="">
  985: <select name="reschoice"  onchange="SetResChoice(this.form)">
  986: <option>'.&mt('Select action').'</option>'.
  987: '<option value="copy">'.&mt('Copy').'</option>';
  988:     if ($pubstatus eq 'obsolete' || $pubstatus eq 'unpublished') {
  989:         $$pub_select .=
  990: '<option value="rename">'.&mt('Rename').'</option>'.
  991: '<option value="move">'.&mt('Move').'</option>'.
  992: '<option value="delete">'.&mt('Delete').'</option>';
  993:     } else {
  994:         $$pub_select .= '
  995: <option value="obsolete">'.&mt('Mark obsolete').'</option>';
  996:     }
  997: # check for versions
  998:     my $versions = &check_for_versions($r,'/'.$filename,$udom,$uname);
  999:     if ($versions > 0) {
 1000:         $$pub_select .='
 1001: <option value="retrieve">'.&mt('Retrieve old version').'</option>';
 1002:     }
 1003:     $$pub_select .= '
 1004: <option value="publish">'.$publish_button.'</option>'.
 1005: '<option value="cleanup">'.&mt('Clean up').'</option>'.
 1006: '<option value="print">'.&mt('Print').'</option>'.
 1007: '</select>
 1008: <input type="hidden" name="filename" value="/priv'.
 1009:  &HTML::Entities::encode($thisdisfn.'/'.$filename,'<>&"').'" />
 1010:  <input type="hidden" name="dispfilename" value="'.
 1011:  &HTML::Entities::encode($filename).'" /></form>';
 1012:     $$numres ++;
 1013: }
 1014: 
 1015: sub check_for_versions {
 1016:     my ($r,$fn,$udom,$uname) = @_;
 1017:     my $versions = 0;
 1018:     my $docroot=$r->dir_config('lonDocRoot');
 1019:     my $resfn=$docroot.'/res/'.$udom.'/'.$uname.$fn;
 1020:     my $resdir=$resfn;
 1021:     $resdir=~s/\/[^\/]+$/\//;
 1022:     $fn=~/\/([^\/]+)\.(\w+)$/;
 1023:     my $main=$1;
 1024:     my $suffix=$2;
 1025:     opendir(DIR,$resdir);
 1026:     while (my $filename=readdir(DIR)) {
 1027:         if ($filename=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/) {
 1028:             $versions ++;
 1029:         }
 1030:     }
 1031:     closedir(DIR);
 1032:     return $versions;
 1033: }
 1034: 
 1035: sub prepareJsonTranslations {
 1036:     my $json =
 1037:         '{"translations":{'.
 1038:             '"edit":"'.&mt('Edit').'",'.
 1039:             '"editxml":"'.&mt('EditXML').'",'.
 1040:             '"editmeta":"'.&mt('Edit Metadata').'",'.
 1041:             '"obsolete":"'.&mt('Obsolete').'",'.
 1042:             '"modified":"'.&mt('Modified').'",'.
 1043:             '"published":"'.&mt('Published').'",'.
 1044:             '"unpublished":"'.&mt('Unpublished').'",'.
 1045:             '"diff":"'.&mt('Diff').'",'.
 1046:             '"retrieve":"'.&mt('Retrieve').'",'.
 1047:             '"directory":"'.&mt('Directory').'",'.
 1048:             '"results":"'.&mt('Show results for keyword:').'"'.
 1049:         '}}';
 1050: }
 1051: 
 1052: # gathers all files in the working directory except the ones that are already on screen
 1053: sub prepareJsonData {
 1054:     my ($uname, $udom, $pathToSkip) = @_;
 1055:     my $path = "/home/httpd/html/priv/$udom/$uname/";
 1056: 
 1057:     # maximum number of entries, to limit workload and required storage space
 1058:     my $entries = 100;
 1059:     my $firstfile = 1;
 1060:     my $firstdir = 1;
 1061: 
 1062:     my $json = '{"resources":[';
 1063:     $json .= &prepareJsonData_rec($path, \$entries, \$firstfile, \$firstdir, $pathToSkip);
 1064:     $json .= ']}';
 1065: 
 1066:     # if the json string is invalid the whole search breaks.
 1067:     # so we want to make sure that the string is valid in any case.
 1068:     $json =~ s/,\s*,/,/g;
 1069:     $json =~ s/\}\s*\{/\},\{/g;
 1070:     $json =~ s/\}\s*,\s*\]/\}\]/g;
 1071:     return $json;
 1072: }
 1073: 
 1074: # recursive part of json file gathering
 1075: sub prepareJsonData_rec {
 1076:     my ($path, $entries, $firstfile, $firstdir, $pathToSkip) = @_;
 1077:     my $json;
 1078:     my $skipThisFolder = $path =~ m/$pathToSkip\/$/?1:0;
 1079: 
 1080:     my @dirs;
 1081:     my @resources;
 1082:     my @ignored = qw(bak log meta save . ..);
 1083: 
 1084: # Phase 1: Gathering
 1085:     opendir(DIR,$path);
 1086:     my @files=sort {uc($a) cmp uc($b)} (readdir(DIR));
 1087:     foreach my $filename (@files) {
 1088:         next if ($filename eq '.DS_Store');
 1089: 
 1090:         # gather all resources
 1091:         if ($filename !~ /\./) {
 1092:             # its a folder
 1093:             push(@dirs, $filename);
 1094:         } else {
 1095:             # only push files we dont want to ignore
 1096:             next if ($skipThisFolder);
 1097: 
 1098:             $filename =~ /\.(\w+?)$/;
 1099:             unless (grep /$1/, @ignored) {
 1100:                 push(@resources, $filename);
 1101:             }
 1102:         }
 1103:     }
 1104:     closedir(DIR);
 1105:     # nothing to do here if both lists are empty
 1106:     return unless ( @dirs || @resources );
 1107: 
 1108: # Phase 2: Working
 1109:     $$firstfile = 1;
 1110: 
 1111:     foreach (@dirs) {
 1112:         $json .= '{"name":"'.$_.'",'.
 1113:                   '"path":"'.$path.$_.'",'.
 1114:                   '"title":"",'.
 1115:                   '"status":"",'.
 1116:                   '"cmtime":""},';
 1117:     }
 1118: 
 1119:     foreach (@resources) {
 1120:         last if ($$entries < 1);
 1121:         my $title = &getTitleString($path.$_);
 1122: 
 1123:         my $privpath = $path.$_;
 1124:         my $respath = $privpath;
 1125:         $respath =~ s/httpd\/html\/priv\//httpd\/html\/res\//;
 1126: 
 1127:         my $cmtime = (stat($privpath))[9];
 1128:         my $rmtime = (stat($respath))[9];
 1129: 
 1130:         unless ($$firstfile) { $json .= ','; } else { $$firstfile = 0; }
 1131: 
 1132:         my $status = 'unpublished';
 1133: 
 1134:         # if a resource is published, the published version (/html/res/filepath) gets its own modification time
 1135:         # this is newer or equal then the version in your authoring space (/html/priv/filepath)
 1136:         if ($rmtime >= $cmtime) {
 1137:             # obsolete
 1138:             if (&Apache::lonnet::metadata($respath, 'obsolete')) {
 1139:                 $status = 'obsolete';
 1140:             }else{
 1141:                 $status = 'published';
 1142:             }
 1143:         } else {
 1144:             $status = 'modified';
 1145:         }
 1146: 
 1147:         $json .= '{"name":"'.$_.'",'.
 1148:                   '"path":"'.$path.'",'.
 1149:                   '"title":"'.$title.'",'.
 1150:                   '"status":"'.$status.'",'.
 1151:                   '"cmtime":"'.&Apache::lonlocal::locallocaltime($cmtime).'"}';
 1152:         $$entries--;
 1153:     }
 1154: 
 1155:     foreach(@dirs) {
 1156:         next if ($$entries < 1);
 1157:         $json .= ',';
 1158:         $json .= &prepareJsonData_rec
 1159:                     ($path.$_.'/', $entries, $firstfile, $firstdir, $pathToSkip);
 1160:     }
 1161:     return $json;
 1162: }
 1163: 1;
 1164: __END__
 1165: 
 1166: 
 1167: =head1 NAME
 1168: 
 1169: Apache::lonpubdir - Authoring space directory lister
 1170: 
 1171: =head1 SYNOPSIS
 1172: 
 1173: Invoked (for various locations) by /etc/httpd/conf/srm.conf:
 1174: 
 1175:  <LocationMatch "^/+priv.*/$">
 1176:  PerlAccessHandler       Apache::loncacc
 1177:  SetHandler perl-script
 1178:  PerlHandler Apache::lonpubdir
 1179:  ErrorDocument     403 /adm/login
 1180:  ErrorDocument     404 /adm/notfound.html
 1181:  ErrorDocument     406 /adm/unauthorized.html
 1182:  ErrorDocument	  500 /adm/errorhandler
 1183:  </LocationMatch>
 1184: 
 1185:  <Location /adm/pubdir>
 1186:  PerlAccessHandler       Apache::lonacc
 1187:  SetHandler perl-script
 1188:  PerlHandler Apache::lonpubdir
 1189:  ErrorDocument     403 /adm/login
 1190:  ErrorDocument     404 /adm/notfound.html
 1191:  ErrorDocument     406 /adm/unauthorized.html
 1192:  ErrorDocument	  500 /adm/errorhandler
 1193:  </Location>
 1194: 
 1195: =head1 INTRODUCTION
 1196: 
 1197: This module publishes a directory of files.
 1198: 
 1199: This is part of the LearningOnline Network with CAPA project
 1200: described at http://www.lon-capa.org.
 1201: 
 1202: =head1 HANDLER SUBROUTINE
 1203: 
 1204: This routine is called by Apache and mod_perl.
 1205: 
 1206: =over 4
 1207: 
 1208: =item *
 1209: 
 1210: read in information
 1211: 
 1212: =item *
 1213: 
 1214: start page output
 1215: 
 1216: =item *
 1217: 
 1218: run through list of files and attempt to publish unhidden files
 1219: 
 1220: =back
 1221: 
 1222: =head1 SUBROUTINES:
 1223: 
 1224: =over
 1225: 
 1226: =item startpage($r, $uame, $udom, $thisdisfn)
 1227: 
 1228: Output the header of the page.  This includes:
 1229:  - The HTML header
 1230:  - The H1/H3  stuff which includes the directory.
 1231: 
 1232:     startpage($r, $uame, $udom, $thisdisfn);
 1233:         $r     - The apache request object.
 1234:         $uname - User name.
 1235:         $udom  - Domain name the user is logged in under.
 1236:         $thisdisfn - Displayable version of the filename.
 1237: 
 1238: =item getTitleString($fullname)
 1239: 
 1240:     Get the title string or "[untitled]" if the file has no title metadata:
 1241:     Without the latter substitution, it's impossible to examine metadata for
 1242:     untitled resources.  Resources may be legitimately untitled, to prevent
 1243:     searches from locating them.
 1244: 
 1245:     $str = getTitleString($fullname);
 1246:         $fullname - Fully qualified filename to check.
 1247: 
 1248: =item putdirectory($r, $base, $here, $dirname, $modtime, $targetdir, $bombs,
 1249:                    $numdir)
 1250: 
 1251:     Put out a directory table row:
 1252: 
 1253:         $r        - Apache request object.
 1254:         $reqfile  - File in request.
 1255:         $here     - Where we are in directory tree.
 1256:         $dirname  - Name of directory special file.
 1257:         $modtime  - Encoded modification time.
 1258:         targetdir - Publication target directory.
 1259:         bombs     - Reference to hash of URLs with runtime error messages.
 1260:         numdir    - Reference to scalar used to track number of sub-directories
 1261:                     in directory (used in form name for each "actions" dropdown).
 1262: 
 1263: =back
 1264: 
 1265: =cut

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