Annotation of loncom/publisher/lonpubdir.pm, revision 1.159

1.1       www         1: # The LearningOnline Network with CAPA
1.145     raeburn     2: # Authoring Space Directory Lister
1.16      albertel    3: #
1.159   ! musolffc    4: # $Id: lonpubdir.pm,v 1.158 2014/06/29 03:33:23 raeburn Exp $
1.16      albertel    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/
1.1       www        27: #
1.17      harris41   28: ###
1.1       www        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);
1.17      harris41   36: use Apache::loncommon();
1.48      www        37: use Apache::lonhtmlcommon();
1.91      www        38: use Apache::londiff();
1.39      www        39: use Apache::lonlocal;
1.50      www        40: use Apache::lonmsg;
1.64      raeburn    41: use Apache::lonmenu;
                     42: use Apache::lonnet;
1.154     raeburn    43: use LONCAPA qw(:DEFAULT :match);
1.1       www        44: 
                     45: sub handler {
                     46: 
1.152     musolffc   47:     my $r=shift;
1.1       www        48: 
1.152     musolffc   49:     # Validate access to the construction space and get username:domain.
1.6       www        50: 
1.153     raeburn    51:     my ($uname,$udom)=&Apache::lonnet::constructaccess($r->uri); 
1.152     musolffc   52:     unless (($uname) && ($udom)) {
                     53:         return HTTP_NOT_ACCEPTABLE;
                     54:     }
1.23      foxr       55: 
1.127     www        56: # ----------------------------------------------------------- Start page output
1.23      foxr       57: 
1.152     musolffc   58:     my $fn=$r->filename;
                     59:     $fn=~s/\/$//;
                     60:     my $thisdisfn=$fn;
1.1       www        61: 
1.152     musolffc   62:     my $docroot=$r->dir_config('lonDocRoot');     # Apache  londocument root.
1.155     raeburn    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:     }
1.152     musolffc   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 %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
                     89: 
                     90:     &startpage($r, $uname, $udom, $thisdisfn);  # Put out the start of page.
1.157     raeburn    91: 
                     92:     if (!-d $fn) {
                     93:         if (-e $fn) {
                     94:             $r->print('<p class="LC_info">'.&mt('Requested item is a file not a directory.').'</p>');
                     95:         } else {
                     96:             $r->print('<p class="LC_info">'.&mt('The requested subdirectory does not exist.').'</p>');
                     97:         }
                     98:         $r->print(&Apache::loncommon::end_page());
                     99:         return OK;
                    100:     }
                    101:     my @files;
                    102:     if (opendir(DIR,$fn)) {
1.158     raeburn   103:         @files = grep(!/^\.+$/,readdir(DIR));
1.157     raeburn   104:         closedir(DIR);
                    105:     } else {
                    106:         $r->print('<p class="LC_error">'.&mt('Could not open directory.').'</p>');
                    107:         $r->print(&Apache::loncommon::end_page());
                    108:         return OK;
                    109:     }
                    110: 
1.152     musolffc  111:     &dircontrols($r,$uname,$udom,$thisdisfn);   # Put out actions for directory, 
                    112:                                                 # browse/upload + new file page.
                    113:     &resourceactions($r,$uname,$udom,$thisdisfn); # Put out form used for printing/deletion etc.
1.64      raeburn   114: 
1.152     musolffc  115:     my $numdir = 0;
                    116:     my $numres = 0;
1.6       www       117:   
1.152     musolffc  118:     # Retrieving value for "sortby" and "sortorder" from QUERY_STRING
                    119:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                    120:         ['sortby','sortorder']);
                    121: 
                    122:     # Sort by name as default, not reversed
                    123:     if (! exists($env{'form.sortby'})) { $env{'form.sortby'} = 'filename' }
                    124:     if (! exists($env{'form.sortorder'})) { $env{'form.sortorder'} = '' }
                    125: 
                    126:     my $sortby = $env{'form.sortby'};
                    127:     my $sortorder = $env{'form.sortorder'};
                    128: 
1.158     raeburn   129:     if ((@files == 0) && ($thisdisfn =~ m{^/$match_domain/$match_username})) {
                    130:         if ($thisdisfn =~ m{^/$match_domain/$match_username$}) {
1.157     raeburn   131:             $r->print('<p class="LC_info">'.&mt('This Authoring Space is currently empty.').'</p>');
                    132:         } else {
                    133:             $r->print('<p class="LC_info">'.&mt('This subdirectory is currently empty.').'</p>');
                    134:         }
1.154     raeburn   135:         $r->print(&Apache::loncommon::end_page());
                    136:         return OK;
                    137:     }
                    138: 
1.152     musolffc  139:     # Start off the directory table.
                    140:     $r->print(&Apache::loncommon::start_data_table()
                    141:         .&Apache::loncommon::start_data_table_header_row()
                    142:         .'<th><a href="'.$linkdir.'/?sortby=filetype&sortorder='
                    143:             .((($sortby eq "filetype") && ($sortorder ne 'rev')) ? 'rev' : '') 
                    144:             .'">'.&mt('Type')
                    145:             .'<span class="LC_fontsize_small"> &#9660;</span></a></th>'
                    146:         .'<th>'.&mt('Actions').'</th>'
                    147:         .'<th><a href="'.$linkdir.'/?sortby=filename&sortorder='
                    148:             .((($sortby eq "filename") && ($sortorder ne 'rev')) ? 'rev' : '') 
                    149:             .'">'.&mt('Name')
                    150:             .'<span class="LC_fontsize_small"> &#9660;</span></a></th>'
                    151:         .'<th><a href="'.$linkdir.'/?sortby=title&sortorder='
                    152:             .((($sortby eq "title") && ($sortorder ne 'rev')) ? 'rev' : '') 
                    153:             .'">'.&mt('Title')
                    154:             .'<span class="LC_fontsize_small"> &#9660;</span></a></th>'
                    155:         .'<th colspan="2"><a href="'.$linkdir.'/?sortby=pubstatus&sortorder='
                    156:             .((($sortby eq "pubstatus") && ($sortorder ne 'rev')) ? 'rev' : '') 
                    157:             .'">'.&mt('Status')
                    158:             .'<span class="LC_fontsize_small"> &#9660;</span></a></th>'
                    159:         .'<th><a href="'.$linkdir.'/?sortby=cmtime&sortorder='
                    160:             .((($sortby eq "cmtime") && ($sortorder ne 'rev')) ? 'rev' : '') 
                    161:             .'">'.&mt('Last Modified')
                    162:             .'<span class="LC_fontsize_small"> &#9660;</span></a></th>'
                    163:         .'<th><a href="'.$linkdir.'/?sortby=size&sortorder='
                    164:             .((($sortby eq "size") && ($sortorder ne 'rev')) ? 'rev' : '') 
                    165:             .'">'.&mt('Size').' (kB)'
                    166:             .'<span class="LC_fontsize_small"> &#9660;</span></a></th>'
                    167:         .&Apache::loncommon::end_data_table_header_row()
                    168:     );
                    169: 
                    170:     my $dirptr=16384;		# Mask indicating a directory in stat.cmode.
                    171:     my $filehash = {};
                    172:     foreach my $filename (@files) {
1.159   ! musolffc  173:         # Skip .DS_Store, .DAV and hidden files
1.152     musolffc  174:         my ($extension) = ($filename=~/\.(\w+)$/);
1.156     raeburn   175:         next if (($filename eq '.DS_Store')
1.159   ! musolffc  176:                 || ($filename eq '.DAV')
1.156     raeburn   177:                 || (&Apache::loncommon::fileembstyle($extension) eq 'hdn')
                    178:                 || ($filename =~ /^\._/));
1.152     musolffc  179: 
                    180:         my ($cmode,$csize,$cmtime)=(stat($fn.'/'.$filename))[2,7,9];
                    181:         my $linkfilename = &HTML::Entities::encode('/priv'.$thisdisfn.'/'.$filename,'<>&"');
                    182:         # Identify type of file according to icon used
                    183:         my ($filetype) = (&Apache::loncommon::icon($filename) =~ m{/(\w+).gif$}); 
                    184:         my $cstr_dir = $r->dir_config('lonDocRoot').'/priv'.$thisdisfn;
                    185:         my $meta_same = &isMetaSame($cstr_dir, $resdir, $filename);
                    186:         
                    187:         # Store size, title, and status for files but not directories
                    188:         my $size = (!($cmode&$dirptr)) ? $csize/1024. : 0;
                    189:         my ($status, $pubstatus, $title, $fulltitle);
                    190:         if (!($cmode&$dirptr)) {
                    191:             ($status, $pubstatus) = &getStatus($resdir, $targetdir, $cstr_dir, 
                    192:                 $filename, $linkfilename, $cmtime, $meta_same);
                    193:             ($fulltitle, $title) = &getTitle($resdir, $targetdir, $filename, 
                    194:                                         $linkfilename, $meta_same, \%bombs);
                    195:         } else {
                    196:             ($status, $pubstatus) = ('','');
                    197:             ($fulltitle, $title) = ('','');
                    198:         }
1.150     musolffc  199: 
1.152     musolffc  200:         # This hash will allow sorting
                    201:         $filehash->{ $filename } = {
                    202:             "cmtime"            => $cmtime,
                    203:             "size"              => $size,
                    204:             "cmode"             => $cmode,
                    205:             "filetype"          => $filetype,
                    206:             "title"             => $title,
                    207:             "fulltitle"         => $fulltitle,
                    208:             "status"            => $status,
                    209:             "pubstatus"         => $pubstatus,
                    210:             "linkfilename"      => $linkfilename,
                    211:         }
                    212:     }
                    213:    
                    214:     my @sorted_files;
                    215:     # Sorting by something other than "Name".  Name is the secondary key.
                    216:     if ($sortby =~ m{cmtime|size}) {    # Numeric fields
                    217:         # First check if order should be reversed
                    218:         if ($sortorder eq "rev") {
                    219:             @sorted_files = sort {
                    220:                 $filehash->{$a}->{$sortby} <=> $filehash->{$b}->{$sortby}
                    221:                     or
                    222:                 uc($a) cmp uc($b)
                    223:             } (keys(%{$filehash}));
                    224:         } else {
                    225:             @sorted_files = sort {
                    226:                 $filehash->{$b}->{$sortby} <=> $filehash->{$a}->{$sortby}
                    227:                     or
                    228:                 uc($a) cmp uc($b)
                    229:             } (keys(%{$filehash}));
                    230:         }
                    231:     } elsif ($sortby =~ m{filetype|title|status}) {     # String fields
                    232:         if ($sortorder eq "rev") {
                    233:             @sorted_files = sort {
                    234:                 $filehash->{$b}->{$sortby} cmp $filehash->{$a}->{$sortby}
                    235:                     or
                    236:                 uc($a) cmp uc($b)
                    237:             } (keys(%{$filehash}));
                    238:         } else {
                    239:             @sorted_files = sort {
                    240:                 $filehash->{$a}->{$sortby} cmp $filehash->{$b}->{$sortby}
                    241:                     or
                    242:                 uc($a) cmp uc($b)
                    243:             } (keys(%{$filehash}));
                    244:         }
                    245: 
                    246:     # Sort by "Name" is the default
                    247:     } else { 
                    248:         if ($sortorder eq "rev") {
                    249:             @sorted_files = sort {uc($b) cmp uc($a)} (keys(%{$filehash}));
                    250:         } else {
                    251:             @sorted_files = sort {uc($a) cmp uc($b)} (keys(%{$filehash}));
                    252:         }
                    253:     }
                    254: 
                    255:     # Print the sorted resources
                    256:     foreach my $filename (@sorted_files) {
                    257:         if ($filehash->{$filename}->{"cmode"}&$dirptr) {        # Directories
                    258:             &putdirectory($r, $thisdisfn, $linkdir, $filename, 
                    259:                 $filehash->{$filename}->{"cmtime"}, 
                    260:                 $targetdir, \%bombs, \$numdir);
                    261:         } else {                                                # Files
                    262:             &putresource($r, $udom, $uname, $filename, $thisdisfn, $resdir,
                    263:                 $targetdir, $linkdir, $filehash->{$filename}->{"cmtime"}, 
                    264:                 $filehash->{$filename}->{"size"}, \$numres, 
                    265:                 $filehash->{$filename}->{"linkfilename"},
                    266:                 $filehash->{$filename}->{"fulltitle"},
                    267:                 $filehash->{$filename}->{"status"},
                    268:                 $filehash->{$filename}->{"pubstatus"});
                    269:         }
                    270:     }
                    271: 
                    272:     $r->print( &Apache::loncommon::end_data_table()
                    273:         .&Apache::loncommon::end_page() );
1.2       www       274: 
1.154     raeburn   275:     return OK;
1.1       www       276: }
1.127     www       277: 
1.152     musolffc  278: 
                    279: 
1.23      foxr      280: #   Output the header of the page.  This includes:
                    281: #   - The HTML header 
                    282: #   - The H1/H3  stuff which includes the directory.
                    283: #
                    284: #     startpage($r, $uame, $udom, $thisdisfn);
                    285: #      $r     - The apache request object.
                    286: #      $uname - User name.
                    287: #      $udom  - Domain name the user is logged in under.
                    288: #      $thisdisfn - Displayable version of the filename.
1.26      www       289: 
1.23      foxr      290: sub startpage {
                    291:     my ($r, $uname, $udom, $thisdisfn) = @_;
1.39      www       292:     &Apache::loncommon::content_type($r,'text/html');
1.23      foxr      293:     $r->send_http_header;
1.64      raeburn   294: 
1.132     www       295:     my $formaction='/priv'.$thisdisfn.'/';
1.89      albertel  296:     $formaction=~s|/+|/|g;
1.66      raeburn   297:     &Apache::lonhtmlcommon::store_recent('construct',$formaction,$formaction);
1.121     bisitz    298: 
1.125     droeschl  299:     &Apache::lonhtmlcommon::clear_breadcrumbs();
                    300:     &Apache::lonhtmlcommon::add_breadcrumb({
1.145     raeburn   301:         'text'  => 'Authoring Space',
1.137     raeburn   302:         'href'  => &Apache::loncommon::authorspace($formaction),
1.125     droeschl  303:     });
                    304:     # breadcrumbs (and tools) will be created 
                    305:     # in start_page->bodytag->innerregister
                    306: 
1.132     www       307:     $env{'request.noversionuri'}=$formaction;
1.153     raeburn   308:     $r->print(&Apache::loncommon::start_page('Authoring Space'));
1.90      albertel  309: 
1.147     raeburn   310:     my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
                    311:     my $current_disk_usage = &Apache::lonnet::diskusage($udom,$uname,"$londocroot/priv/$udom/$uname");
1.153     raeburn   312:     my $disk_quota = &Apache::loncommon::get_user_quota($uname,$udom,'author'); #expressed in MB
                    313:     $disk_quota = 1000 * $disk_quota; # convert from MB to kB
1.147     raeburn   314: 
1.121     bisitz    315:     $r->print(&Apache::loncommon::head_subbox(
1.147     raeburn   316:                      '<div style="float:right;padding-top:0;margin-top;0">'
                    317:                     .&Apache::lonhtmlcommon::display_usage($current_disk_usage,$disk_quota)
                    318:                     .'</div>'
                    319:                     .&Apache::loncommon::CSTR_pageheader()));
1.121     bisitz    320: 
1.101     albertel  321:     my $esc_thisdisfn = &Apache::loncommon::escape_single($thisdisfn);
1.145     raeburn   322:     my $doctitle = 'LON-CAPA '.&mt('Authoring Space');
1.109     bisitz    323:     my $newname = &mt('New Name');
1.29      www       324:     my $pubdirscript=(<<ENDPUBDIRSCRIPT);
1.77      albertel  325: <script type="text/javascript">
1.107     bisitz    326: top.document.title = '$esc_thisdisfn/ - $doctitle';
1.37      www       327: // Store directory location for menu bar to find
                    328: 
1.132     www       329: parent.lastknownpriv='/priv$esc_thisdisfn/';
1.37      www       330: 
                    331: // Confirmation dialogues
                    332: 
1.64      raeburn   333:     function currdiract(theform) {
                    334:         if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'publish') {
1.79      www       335:             document.publishdir.filename.value = theform.filename.value;
                    336: 	    document.publishdir.submit();
1.64      raeburn   337:         }
1.113     schafran  338:         if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'editmeta') {
1.66      raeburn   339:             top.location=theform.filename.value+'default.meta'
1.64      raeburn   340:         }
                    341:         if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'printdir' ) {
                    342:             document.printdir.postdata.value=theform.filename.value
                    343:             document.printdir.submit();
                    344:         }
1.88      raeburn   345:         if (theform.dirtask.options[theform.dirtask.selectedIndex].value == "delete") {
                    346:               var delform = document.delresource
                    347:               delform.filename.value = theform.filename.value
                    348:               delform.submit()
                    349:         }
1.64      raeburn   350:     }
                    351:   
                    352:     function checkUpload(theform) {
                    353:         if (theform.file == '') {
                    354:             alert("Please use 'Browse..' to choose a file first, before uploading")
                    355:             return 
                    356:         }
                    357:         theform.submit()  
                    358:     }
                    359: 
                    360:     function SetPubDir(theform,printForm) {
                    361:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "open") {
1.75      albertel  362:             top.location = theform.openname.value
1.64      raeburn   363:             return
                    364:         }
                    365:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "publish") {
1.79      www       366:             theform.submit();
1.64      raeburn   367:         }
1.113     schafran  368:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "editmeta") {
1.66      raeburn   369:             top.location=theform.filename.value+'default.meta'
1.64      raeburn   370:         }
1.68      raeburn   371:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "printdir") {
1.64      raeburn   372:             theform.action = '/adm/printout'
                    373:             theform.postdata.value = theform.filename.value
                    374:             theform.submit()
                    375:         }
1.88      raeburn   376:         if (theform.diraction.options[theform.diraction.selectedIndex].value == "delete") {
                    377:               var delform = document.delresource
                    378:               delform.filename.value = theform.filename.value
                    379:               delform.submit()
                    380:         }
1.64      raeburn   381:         return
                    382:     }
                    383:     function SetResChoice(theform) {
                    384:       var activity = theform.reschoice.options[theform.reschoice.selectedIndex].value
                    385:       if ((activity == 'rename') || (activity == 'copy') || (activity == 'move')) {
                    386:           changename(theform,activity)
                    387:       }
                    388:       if (activity == 'publish') {
                    389:           var pubform = document.pubresource
                    390:           pubform.filename.value = theform.filename.value
                    391:           pubform.submit()
                    392:       }
                    393:       if (activity == 'delete') {
                    394:           var delform = document.delresource
                    395:           delform.filename.value = theform.filename.value
1.71      raeburn   396:           delform.submit()
1.64      raeburn   397:       }
                    398:       if (activity == 'obsolete') {
1.68      raeburn   399:           var pubform = document.pubresource
                    400:           pubform.filename.value = theform.filename.value
1.80      www       401:           pubform.makeobsolete.value=1;
1.68      raeburn   402:           pubform.submit()
1.64      raeburn   403:       }
                    404:       if (activity == 'print') {
1.68      raeburn   405:           document.printresource.postdata.value = theform.filename.value
1.64      raeburn   406:           document.printresource.submit()
                    407:       }
                    408:       if (activity == 'retrieve') {
1.68      raeburn   409:           document.retrieveres.filename.value = theform.filename.value
                    410:           document.retrieveres.submit()
1.64      raeburn   411:       }
1.82      www       412:       if (activity == 'cleanup') {
                    413:           document.cleanup.filename.value = theform.filename.value
                    414:           document.cleanup.submit()
                    415:       }
1.64      raeburn   416:       return
                    417:     }
                    418:     function changename(theform,activity) {
1.96      banghart  419:         var oldname=theform.dispfilename.value;
1.109     bisitz    420:         var newname=prompt('$newname',oldname);
1.97      banghart  421:         if (newname == "" || !newname || newname == oldname)  {
1.64      raeburn   422:             return
                    423:         }
                    424:         document.moveresource.newfilename.value = newname
                    425:         document.moveresource.filename.value = theform.filename.value
                    426:         document.moveresource.action.value = activity
                    427:         document.moveresource.submit();
                    428:     }
1.29      www       429: </script>
                    430: ENDPUBDIRSCRIPT
1.64      raeburn   431:     $r->print($pubdirscript);
                    432: }
                    433: 
                    434: sub dircontrols {
                    435:     my ($r,$uname,$udom,$thisdisfn) = @_;
1.84      www       436:     my %lt=&Apache::lonlocal::texthash(
                    437:                                        cnpd => 'Cannot publish directory',
                    438:                                        cnrd => 'Cannot retrieve directory',
                    439:                                        mcdi => 'Must create new subdirectory inside a directory',
                    440:                                        pubr => 'Publish this Resource',
                    441:                                        pubd => 'Publish this Directory',
1.88      raeburn   442:                                        dedr => 'Delete Directory',
1.84      www       443:                                        rtrv => 'Retrieve Old Version',
                    444:                                        list => 'List Directory',
                    445:                                        uplo => 'Upload file',  
                    446:                                        dele => 'Delete',
1.113     schafran  447:                                        edit => 'Edit Metadata', 
1.84      www       448:                                        sela => 'Select Action',
                    449:                                        nfil => 'New file',
                    450:                                        nhtm => 'New HTML file',
                    451:                                        nprb => 'New problem',
                    452:                                        npag => 'New assembled page',
                    453:                                        nseq => 'New assembled sequence',
                    454:                                        ncrf => 'New custom rights file',
                    455:                                        nsty => 'New style file',
                    456:                                        nlib => 'New library file',
1.103     albertel  457:                                        nbt  => 'New bridgetask file',
1.84      www       458:                                        nsub => 'New subdirectory',
                    459:                                        renm => 'Rename current file to',
                    460:                                        move => 'Move current file to',
                    461:                                        copy => 'Copy current file to',
                    462:                                        type => 'Type Name Here',
1.105     albertel  463:                                        go   => 'Go',
1.84      www       464:                                        prnt => 'Print contents of directory',
                    465:                                        crea => 'Create a new directory or LON-CAPA document',
                    466: 				       acti => 'Actions for current directory',
1.105     albertel  467: 				       updc => 'Upload a new document',
                    468: 				       pick => 'Please select an action to perform using the new filename',
1.84      www       469:                                       );
1.106     bisitz    470:     my $mytype = $lt{'type'}; # avoid conflict with " and ' in javascript
1.64      raeburn   471:     $r->print(<<END);
1.117     harmsja   472: <div class="LC_columnSection">
1.116     bisitz    473:   <div>
                    474:     <form name="curractions" method="post" action="">
                    475:       <fieldset>
                    476:         <legend>$lt{'acti'}</legend>
                    477:         <select name="dirtask" onchange="currdiract(this.form)">
1.84      www       478:             <option>$lt{'sela'}</option>
                    479:             <option value="publish">$lt{'pubd'}</option>
1.113     schafran  480:             <option value="editmeta">$lt{'edit'}</option>
1.84      www       481:             <option value="printdir">$lt{'prnt'}</option>
1.88      raeburn   482:             <option value="delete">$lt{'dedr'}</option>
1.116     bisitz    483:         </select>
1.132     www       484:         <input type="hidden" name="filename" value="/priv$thisdisfn/" />
1.116     bisitz    485:       </fieldset>
                    486:     </form>
                    487:     <form name="publishdir" method="post" action="/adm/publish" target="_parent">
                    488:       <input type="hidden" name="pubrec" value="" />
                    489:       <input type="hidden" name="filename" value="" />
                    490:     </form>
                    491:     <form name="printdir" method="post" action="/adm/printout" target="_parent">
                    492:       <input type="hidden" name="postdata" value="" />
                    493:     </form>
                    494:   </div>
                    495: 
                    496:   <div>
                    497:     <form name="upublisher" enctype="multipart/form-data" method="post" action="/adm/upload" target="_parent">
                    498:       <fieldset>
                    499:         <legend>$lt{'updc'}</legend>
1.132     www       500:         <input type="hidden" name="filename" value="/priv$thisdisfn/" />
1.116     bisitz    501:         <input type="file" name="upfile" size="20" />
                    502:         <input type="button" value="$lt{'uplo'}"  onclick="checkUpload(this.form)" />
                    503:       </fieldset>
                    504:     </form>
                    505:   </div>
                    506: 
                    507:   <div>
                    508:     <form name="fileaction" method="post" action="/adm/cfile" target="_parent">
                    509:       <fieldset>
                    510:               <legend>$lt{'crea'}</legend>
                    511: 	      <span class="LC_nobreak">
1.132     www       512: 		<input type="hidden" name="filename" value="/priv$thisdisfn/" />
1.105     albertel  513:                   <script type="text/javascript">
                    514:                     function validate_go() {
                    515:                         var selected = document.fileaction.action.selectedIndex;
                    516:                         if (selected == 0) {
                    517:                             alert('$lt{'pick'}');
                    518:                         } else {
                    519:                             document.fileaction.submit();
                    520:                         }
                    521:                     }
                    522:                   </script>
                    523: 		  <select name="action">
                    524: 		    <option value="none">$lt{'sela'}</option>
                    525: 		    <option value="newfile">$lt{'nfil'}:</option>
                    526: 		    <option value="newhtmlfile">$lt{'nhtm'}:</option>
                    527: 		    <option value="newproblemfile">$lt{'nprb'}:</option>
                    528:                     <option value="newpagefile">$lt{'npag'}:</option>
                    529:                     <option value="newsequencefile">$lt{'nseq'}:</option>
                    530:                     <option value="newrightsfile">$lt{'ncrf'}:</option>
                    531:                     <option value="newstyfile">$lt{'nsty'}:</option>
                    532:                     <option value="newtaskfile">$lt{'nbt'}:</option>
                    533:                     <option value="newlibraryfile">$lt{'nlib'}:</option>
                    534: 	            <option value="newdir">$lt{'nsub'}:</option>
1.106     bisitz    535: 		  </select>&nbsp;<input type="text" name="newfilename" value="$lt{'type'}" onfocus="if (this.value == '$mytype') this.value=''" />&nbsp;<input type="button" value="Go" onclick="validate_go();" />
1.92      albertel  536: 		 </span>
1.116     bisitz    537:       </fieldset>
                    538:     </form>
                    539:   </div>
                    540: </div>
1.64      raeburn   541: END
                    542: }
                    543: 
                    544: sub resourceactions {
                    545:     my ($r,$uname,$udom,$thisdisfn) = @_;
                    546:     $r->print(<<END);
                    547:        <form name="moveresource" action="/adm/cfile" target="_parent" method="post">
                    548:          <input type="hidden" name="filename" value="" />
                    549:          <input type="hidden" name="newfilename" value="" />
                    550:          <input type="hidden" name="action" value="" />
                    551:        </form>
                    552:        <form name="delresource" action="/adm/cfile" target="_parent" method="post">
                    553:          <input type="hidden" name="filename" value="" />
                    554:          <input type="hidden" name="action" value="delete" />
                    555:        </form>
                    556:        <form name="pubresource" action="/adm/publish" target="_parent" method="post">
                    557:          <input type="hidden" name="filename" value="" />
1.80      www       558:          <input type="hidden" name="makeobsolete" value="0" />
1.64      raeburn   559:        </form>
                    560:        <form name="printresource" action="/adm/printout" target="_parent" method="post">
                    561:            <input type="hidden" name="postdata" value="" />
                    562:        </form>
                    563:        <form name="retrieveres" action="/adm/retrieve" target="_parent" method="post">
                    564:            <input type="hidden" name="filename" value="" />
                    565:        </form>
1.82      www       566:        <form name="cleanup" action="/adm/cleanup" target="_parent" method="post">
                    567:            <input type="hidden" name="filename" value="" />
                    568:        </form>
1.64      raeburn   569: END
1.23      foxr      570: }
                    571: 
                    572: #
                    573: #   Get the title string or "[untitled]" if the file has no title metadata:
                    574: #   Without the latter substitution, it's impossible to examine metadata for
                    575: #   untitled resources.  Resources may be legitimately untitled, to prevent
                    576: #   searches from locating them.
                    577: #
                    578: #   $str = getTitleString($fullname);
                    579: #       $fullname - Fully qualified filename to check.
                    580: #
                    581: sub getTitleString {
                    582:     my $fullname = shift;
                    583:     my $title    = &Apache::lonnet::metadata($fullname, 'title');
                    584: 
                    585:     unless ($title) {
1.40      www       586: 	$title = "[".&mt('untitled')."]";
1.23      foxr      587:     }
                    588:     return $title;
                    589: }
                    590: 
1.55      www       591: sub getCopyRightString {
                    592:     my $fullname = shift;
                    593:     return &Apache::lonnet::metadata($fullname, 'copyright');
                    594: }
1.61      www       595: 
                    596: sub getSourceRightString {
                    597:     my $fullname = shift;
                    598:     return &Apache::lonnet::metadata($fullname, 'sourceavail');
                    599: }
1.23      foxr      600: #
1.21      foxr      601: #  Put out a directory table row:
1.134     raeburn   602: #    putdirectory(r, base, here, dirname, modtime, targetdir, bombs, numdir)
                    603: #      r         - Apache request object.
                    604: #      reqfile   - File in request.
                    605: #      here      - Where we are in directory tree.
                    606: #      dirname   - Name of directory special file.
                    607: #      modtime   - Encoded modification time.
                    608: #      targetdir - Publication target directory.
                    609: #      bombs     - Reference to hash of URLs with runtime error messages.
                    610: #      numdir    - Reference to scalar used to track number of sub-directories
                    611: #                  in directory (used in form name for each "actions" dropdown).
                    612: #
1.21      foxr      613: sub putdirectory {
1.134     raeburn   614:     my ($r, $reqfile, $here, $dirname, $modtime, $targetdir, $bombs, $numdir) = @_;
1.129     www       615: 
                    616: # construct the display filename: the directory name unless ..:
1.133     www       617:    
                    618:     my $actionitem;
                    619:  
1.21      foxr      620:     my $disfilename = $dirname;
1.130     www       621: # Don't display directory itself, and there is no way up from root directory
1.133     www       622:     unless ((($dirname eq '..') && ($reqfile=~/^\/[^\/]+\/[^\/]+$/)) || ($dirname eq '.')) {
1.143     bisitz    623:         my $kaputt=0;
1.134     raeburn   624:         if (ref($bombs) eq 'HASH') {
1.143     bisitz    625:             foreach my $key (keys(%{$bombs})) {
                    626:                 my $currentdir = &Apache::lonnet::declutter("$targetdir/$disfilename");
                    627:                 if (($key) =~ m{^\Q$currentdir\E/}) { $kaputt=1; last; }
                    628:             }
1.134     raeburn   629:         }
1.129     www       630: #
                    631: # Get the metadata from that directory's default.meta to display titles
                    632: #
1.52      www       633: 	%Apache::lonpublisher::metadatafields=();
                    634: 	%Apache::lonpublisher::metadatakeys=();
1.129     www       635: 	&Apache::lonpublisher::metaeval(
                    636:                  &Apache::lonnet::getfile($r->dir_config('lonDocRoot').$here.'/'.$dirname.'/default.meta')
                    637:                                        );
1.133     www       638:         if ($dirname eq '..') {
1.109     bisitz    639:             $actionitem = &mt('Go to ...');
1.133     www       640:             $disfilename = '<i>'.&mt('Parent Directory').'</i>';
1.64      raeburn   641:         } else {
                    642:             $actionitem = 
                    643:                     '<form name="dirselect_'.$$numdir.
                    644:                     '" action="/adm/publish" target="_parent">'.
1.85      albertel  645:                     '<select name="diraction" onchange="SetPubDir(this.form,document)">'.
1.64      raeburn   646:                       '<option selected="selected">'.&mt('Select action').'</option>'.
                    647:                       '<option value="open">'.&mt('Open').'</option>'.
                    648:                       '<option value="publish">'.&mt('Publish').'</option>'.
1.113     schafran  649:                       '<option value="editmeta">'.&mt('Edit Metadata').'</option>'.
1.77      albertel  650:                       '<option value="printdir">'.&mt('Print directory').'</option>'.
1.88      raeburn   651:                       '<option value="delete">'.&mt('Delete directory').'</option>'.
1.64      raeburn   652:                     '</select>'.
1.129     www       653:                      '<input type="hidden" name="filename" value="'.&HTML::Entities::encode($here.'/'.$dirname,'<>&"').'/" />'.
1.75      albertel  654:                      '<input type="hidden" name="openname" value="'.$here.'/'.$dirname.'/" />'.
1.64      raeburn   655:                      '<input type="hidden" name="postdata" value="" />'.
                    656:                    '</form>';
                    657:             $$numdir ++;
                    658:         }
1.92      albertel  659: 	$r->print('<tr class="LC_browser_folder">'.
1.53      www       660: 		  '<td><img src="'.
1.123     bisitz    661: 		  $Apache::lonnet::perlvar{'lonIconsURL'}.'/navmap.folder.closed.gif" alt="folder" /></td>'.
1.64      raeburn   662: 		  '<td>'.$actionitem.'</td>'.
1.92      albertel  663: 		  '<td><span class="LC_filename"><a href="'.&HTML::Entities::encode($here.'/'.$dirname,'<>&"').'/" target="_parent">'.
                    664: 		  $disfilename.'</a></span></td>'.
1.134     raeburn   665: 		        '<td colspan="3">'.($kaputt?&Apache::lonhtmlcommon::authorbombs($targetdir.'/'.$disfilename.'/'):'').$Apache::lonpublisher::metadatafields{'title'});
1.92      albertel  666: 	if ($Apache::lonpublisher::metadatafields{'subject'} ne '') {
                    667: 	    $r->print(' <i>'.
                    668: 		      $Apache::lonpublisher::metadatafields{'subject'}.
                    669: 		      '</i> ');
                    670: 	}
                    671: 	$r->print($Apache::lonpublisher::metadatafields{'keywords'}.'</td>'.
1.42      www       672: 		  '<td>'.&Apache::lonlocal::locallocaltime($modtime).'</td>'.
1.152     musolffc  673: 	          '<td></td>'.
1.25      www       674: 		  "</tr>\n");
1.64      raeburn   675:     }
1.154     raeburn   676:     return;
1.21      foxr      677: }
1.152     musolffc  678: 
                    679: sub getTitle {
                    680:     my ($resdir, $targetdir, $filename, $linkfilename, $meta_same, $bombs) = @_;
                    681:     my $title='';
                    682:     my $titleString = &getTitleString($targetdir.'/'.$filename);
                    683:     if (-e $resdir.'/'.$filename) {
                    684: 	$title = '<a href="'.$targetdir.'/'.$filename.
                    685: 	    '.meta" target="cat">'.$titleString.'</a>';
                    686:         if (!$meta_same) {
                    687: 	    $title = &mt('Metadata Modified').'<br />'.$title.
                    688: 		'<br />'.
                    689:                 &Apache::loncommon::modal_link(
                    690:                     '/adm/diff?filename='.$linkfilename.'.meta'.'&amp;versiontwo=priv',
                    691:                     &mt('Metadata Diffs'),600,500);
                    692: 	    $title.="\n".'<br />'.
                    693:                 &Apache::loncommon::modal_link(
                    694:                     '/adm/retrieve?filename='.$linkfilename.'.meta&amp;inhibitmenu=yes&amp;add_modal=yes',
                    695:                     &mt('Retrieve Metadata'),600,500);
                    696:         } 
                    697:     }
                    698:     # Allow editing metadata of published and unpublished resources
                    699:     $title .= "\n".'<br />' if ($title);
                    700:     $title .= '<a href="'.$linkfilename.'.meta">'.
                    701:               ($$bombs{&Apache::lonnet::declutter($targetdir.'/'.$filename)}?
                    702:                   '<img src="/adm/lonMisc/bomb.gif" border="0" alt="'.&mt('bomb').'" />':
                    703:                   &mt('Edit Metadata')).
                    704:               '</a>';
                    705: 
                    706:     return ($title, $titleString);
                    707: }
                    708: 
                    709: 
                    710: sub isMetaSame {
                    711:     my ($cstr_dir, $resdir, $filename) = @_;
                    712:     my $meta_cmtime = (stat($cstr_dir.'/'.$filename.'.meta'))[9];
                    713:     my $meta_rmtime = (stat($resdir.'/'.$filename.'.meta'))[9];
                    714:     return (&Apache::londiff::are_different_files($resdir.'/'.$filename.'.meta',
                    715:             $cstr_dir.'/'.$filename.'.meta') && $meta_rmtime < $meta_cmtime) 
                    716:         ? 0 : 1;
                    717: }
                    718:     
                    719: 
                    720: sub getStatus {    
                    721:     my ($resdir, $targetdir, $cstr_dir, $filename,  
                    722:             $linkfilename, $cmtime, $meta_same) = @_;
1.64      raeburn   723:     my $pubstatus = 'unpublished';
1.152     musolffc  724:     my $status = &mt('Unpublished');
1.129     www       725: 
1.22      foxr      726:     if (-e $resdir.'/'.$filename) {
1.152     musolffc  727:         my $same = 0;
                    728:         if ((stat($resdir.'/'.$filename))[9] >= $cmtime) {
                    729:             $same = 1;
1.91      www       730:         } else {
                    731:            if (&Apache::londiff::are_different_files($resdir.'/'.$filename,
1.95      albertel  732: 						     $cstr_dir.'/'.$filename)) {
1.152     musolffc  733:               $same = 0;
1.91      www       734:            } else {
1.152     musolffc  735:               $same = 1;
1.91      www       736:            }
                    737:         }
1.124     bisitz    738: 
                    739:         my $rights_status =
                    740:             &mt(&getCopyRightString($targetdir.'/'.$filename)).', ';
                    741: 
                    742:         my %lt_SourceRight = &Apache::lonlocal::texthash(
                    743:                'open'   => 'Source: open',
                    744:                'closed' => 'Source: closed',
                    745:         );
                    746:         $rights_status .=
                    747:             $lt_SourceRight{&getSourceRightString($targetdir.'/'.$filename)};
                    748: 
1.91      www       749: 	if ($same) {
1.40      www       750: 	    if (&Apache::lonnet::metadata($targetdir.'/'.$filename,'obsolete')) {
1.64      raeburn   751:                 $pubstatus = 'obsolete';
1.41      www       752: 		$status=&mt('Obsolete');
1.95      albertel  753:             } else {
                    754: 		if (!$meta_same) {
                    755: 		    $pubstatus = 'metamodified';
                    756: 		} else {
                    757: 		    $pubstatus = 'published';
                    758: 		}
                    759: 		$status=&mt('Published').
                    760: 		    '<br />'. $rights_status;
                    761: 	    }
1.22      foxr      762: 	} else {
1.64      raeburn   763:             $pubstatus = 'modified';
1.95      albertel  764: 	    $status=&mt('Modified').
                    765: 		'<br />'. $rights_status;
1.22      foxr      766: 	    if (&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {
1.139     www       767: 		$status.='<br />'.
                    768:                          &Apache::loncommon::modal_link(
                    769:                              '/adm/diff?filename='.$linkfilename.'&amp;versiontwo=priv',
                    770:                              &mt('Diffs'),600,500);
1.22      foxr      771: 	    }
1.95      albertel  772: 	} 
1.152     musolffc  773: 
1.140     www       774: 	$status.="\n".'<br />'.
                    775:              &Apache::loncommon::modal_link(
                    776:                  '/adm/retrieve?filename='.$linkfilename.'&amp;inhibitmenu=yes&amp;add_modal=yes',&mt('Retrieve'),600,500);
1.22      foxr      777:     }
1.152     musolffc  778: 
                    779:     return ($status, $pubstatus);
                    780: }
                    781: 
                    782: 
                    783: #
                    784: #   Put a table row for a file resource.
                    785: #
                    786: sub putresource {
                    787:     my ($r, $udom, $uname, $filename, $thisdisfn, $resdir, $targetdir, 
                    788:             $linkdir, $cmtime, $size, $numres, $linkfilename, $title, 
                    789:             $status, $pubstatus) = @_;
                    790:     &Apache::lonnet::devalidate_cache_new('meta',$targetdir.'/'.$filename);
1.143     bisitz    791: 
1.33      www       792:     my $editlink='';
1.38      taceyjo1  793:     my $editlink2='';
1.36      www       794:     if ($filename=~/\.(xml|html|htm|xhtml|xhtm|sty)$/) {
1.146     raeburn   795: 	$editlink=' <br />(<a href="'.$linkdir.'/'.$filename.'?editmode=Edit&amp;problemmode=edit">'.&mt('Edit').'</a>)';
1.34      www       796:     }
1.136     www       797:     if ($filename=~/$LONCAPA::assess_re/) {
1.146     raeburn   798: 	$editlink=' (<a href="'.$linkdir.'/'.$filename.'?editmode=Edit&amp;problemmode=editxml">'.&mt('EditXML').'</a>)';
                    799: 	$editlink2=' <br />(<a href="'.$linkdir.'/'.$filename.'?editmode=Edit&amp;problemmode=edit">'.&mt('Edit').'</a>)';
1.43      taceyjo1  800:     }
1.82      www       801:     if ($filename=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm|sty)$/) {
1.129     www       802: 	$editlink.=' (<a href="/adm/cleanup?filename='.$linkfilename.'" target="_parent">'.&mt('Clean Up').')</a>';
1.82      www       803:     }
1.43      taceyjo1  804:     if ($filename=~/\.(zip|tar|bz2|gz|tar.gz|tar.bz2|tgz)$/) {
1.129     www       805: 	$editlink=' (<a target="_parent" href="/adm/cfile?decompress='.$linkfilename.'">'.&mt('Decompress').'</a>)';
1.33      www       806:     }
1.152     musolffc  807:     my $publish_button = (-e $resdir.'/'.$filename) ? &mt('Re-publish') : &mt('Publish');
1.64      raeburn   808:     my $pub_select = '';
                    809:     &create_pubselect($r,\$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres);
1.115     bisitz    810:     $r->print(&Apache::loncommon::start_data_table_row().
1.53      www       811: 	      '<td>'.($filename=~/[\#\~]$/?'&nbsp;':
1.86      albertel  812: 		      '<img src="'.&Apache::loncommon::icon($filename).'" alt="" />').'</td>'.
1.64      raeburn   813:               '<td>'.$pub_select.'</td>'.
1.104     albertel  814: 	      '<td><span class="LC_filename">'.
1.64      raeburn   815: 	      '<a href="'.$linkdir.'/'.$filename.'" target="_parent">'.
1.92      albertel  816:                $filename.'</a></span>'.$editlink2.$editlink.
1.22      foxr      817: 	      '</td>'.
                    818: 	      '<td>'.$title.'</td>'.
1.115     bisitz    819:               '<td class="LC_browser_file_'.$pubstatus.'">&nbsp;&nbsp;</td>'. # Display publication status
                    820:               '<td>'.$status.'</td>'.
1.42      www       821: 	      '<td>'.&Apache::lonlocal::locallocaltime($cmtime).'</td>'.
1.153     raeburn   822: 	      '<td>'.sprintf("%.1f",$size).'</td>'.
1.115     bisitz    823: 	      &Apache::loncommon::end_data_table_row()
                    824:     );
1.154     raeburn   825:     return;
1.23      foxr      826: }
1.64      raeburn   827: 
                    828: sub create_pubselect {
                    829:     my ($r,$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres) = @_;
                    830:     $$pub_select = '
                    831: <form name="resselect_'.$$numres.'" action="">
1.85      albertel  832: <select name="reschoice"  onchange="SetResChoice(this.form)">
1.77      albertel  833: <option>'.&mt('Select action').'</option>'.
                    834: '<option value="copy">'.&mt('Copy').'</option>';
1.68      raeburn   835:     if ($pubstatus eq 'obsolete' || $pubstatus eq 'unpublished') {
                    836:         $$pub_select .= 
1.77      albertel  837: '<option value="rename">'.&mt('Rename').'</option>'.
                    838: '<option value="move">'.&mt('Move').'</option>'.
                    839: '<option value="delete">'.&mt('Delete').'</option>';
1.64      raeburn   840:     } else {
                    841:         $$pub_select .= '
1.77      albertel  842: <option value="obsolete">'.&mt('Mark obsolete').'</option>';
1.64      raeburn   843:     }
                    844: # check for versions
                    845:     my $versions = &check_for_versions($r,'/'.$filename,$udom,$uname);
                    846:     if ($versions > 0) {
                    847:         $$pub_select .='
1.77      albertel  848: <option value="retrieve">'.&mt('Retrieve old version').'</option>';
1.64      raeburn   849:     }
                    850:     $$pub_select .= '
1.77      albertel  851: <option value="publish">'.$publish_button.'</option>'.
1.82      www       852: '<option value="cleanup">'.&mt('Clean up').'</option>'.
1.77      albertel  853: '<option value="print">'.&mt('Print').'</option>'.
1.68      raeburn   854: '</select>
1.131     www       855: <input type="hidden" name="filename" value="/priv'.
                    856:  &HTML::Entities::encode($thisdisfn.'/'.$filename,'<>&"').'" />
1.96      banghart  857:  <input type="hidden" name="dispfilename" value="'.
1.99      albertel  858:  &HTML::Entities::encode($filename).'" /></form>';
1.64      raeburn   859:     $$numres ++;
                    860: }
                    861: 
                    862: sub check_for_versions {
                    863:     my ($r,$fn,$udom,$uname) = @_;
                    864:     my $versions = 0;
                    865:     my $docroot=$r->dir_config('lonDocRoot');
                    866:     my $resfn=$docroot.'/res/'.$udom.'/'.$uname.$fn;
                    867:     my $resdir=$resfn;
                    868:     $resdir=~s/\/[^\/]+$/\//;
                    869:     $fn=~/\/([^\/]+)\.(\w+)$/;
                    870:     my $main=$1;
                    871:     my $suffix=$2;
                    872:     opendir(DIR,$resdir);
                    873:     while (my $filename=readdir(DIR)) {
                    874:         if ($filename=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/) {
                    875:             $versions ++;        
                    876:         }
                    877:     }
1.154     raeburn   878:     closedir(DIR);
1.64      raeburn   879:     return $versions;
                    880: }
                    881: 
1.4       www       882: 1;
                    883: __END__
1.17      harris41  884: 
                    885: 
1.114     jms       886: =head1 NAME
                    887: 
1.145     raeburn   888: Apache::lonpubdir - Authoring space directory lister
1.114     jms       889: 
                    890: =head1 SYNOPSIS
                    891: 
                    892: Invoked (for various locations) by /etc/httpd/conf/srm.conf:
                    893: 
1.134     raeburn   894:  <LocationMatch "^/+priv.*/$">
1.114     jms       895:  PerlAccessHandler       Apache::loncacc
                    896:  SetHandler perl-script
                    897:  PerlHandler Apache::lonpubdir
                    898:  ErrorDocument     403 /adm/login
                    899:  ErrorDocument     404 /adm/notfound.html
                    900:  ErrorDocument     406 /adm/unauthorized.html
                    901:  ErrorDocument	  500 /adm/errorhandler
                    902:  </LocationMatch>
                    903: 
                    904:  <Location /adm/pubdir>
                    905:  PerlAccessHandler       Apache::lonacc
                    906:  SetHandler perl-script
                    907:  PerlHandler Apache::lonpubdir
                    908:  ErrorDocument     403 /adm/login
                    909:  ErrorDocument     404 /adm/notfound.html
                    910:  ErrorDocument     406 /adm/unauthorized.html
                    911:  ErrorDocument	  500 /adm/errorhandler
                    912:  </Location>
                    913: 
                    914: =head1 INTRODUCTION
                    915: 
                    916: This module publishes a directory of files.
                    917: 
                    918: This is part of the LearningOnline Network with CAPA project
                    919: described at http://www.lon-capa.org.
                    920: 
                    921: =head1 HANDLER SUBROUTINE
                    922: 
                    923: This routine is called by Apache and mod_perl.
                    924: 
                    925: =over 4
                    926: 
                    927: =item *
                    928: 
                    929: read in information
                    930: 
                    931: =item *
                    932: 
                    933: start page output
                    934: 
                    935: =item *
                    936: 
                    937: run through list of files and attempt to publish unhidden files
                    938: 
                    939: =back
                    940: 
                    941: =head1 SUBROUTINES:
                    942: 
                    943: =over
                    944: 
                    945: =item startpage($r, $uame, $udom, $thisdisfn)
                    946: 
                    947: Output the header of the page.  This includes:
                    948:  - The HTML header 
                    949:  - The H1/H3  stuff which includes the directory.
                    950:  
                    951:     startpage($r, $uame, $udom, $thisdisfn);
                    952:         $r     - The apache request object.
                    953:         $uname - User name.
                    954:         $udom  - Domain name the user is logged in under.
                    955:         $thisdisfn - Displayable version of the filename.
                    956: 
                    957: =item getTitleString($fullname)
                    958: 
                    959:     Get the title string or "[untitled]" if the file has no title metadata:
                    960:     Without the latter substitution, it's impossible to examine metadata for
                    961:     untitled resources.  Resources may be legitimately untitled, to prevent
                    962:     searches from locating them.
                    963:     
                    964:     $str = getTitleString($fullname);
                    965:         $fullname - Fully qualified filename to check.
                    966: 
1.134     raeburn   967: =item putdirectory($r, $base, $here, $dirname, $modtime, $targetdir, $bombs,
                    968:                    $numdir)
1.114     jms       969: 
                    970:     Put out a directory table row:
                    971:     
1.134     raeburn   972:         $r        - Apache request object.
                    973:         $reqfile  - File in request.
                    974:         $here     - Where we are in directory tree.
                    975:         $dirname  - Name of directory special file.
                    976:         $modtime  - Encoded modification time.
                    977:         targetdir - Publication target directory.
                    978:         bombs     - Reference to hash of URLs with runtime error messages.
                    979:         numdir    - Reference to scalar used to track number of sub-directories
                    980:                     in directory (used in form name for each "actions" dropdown).
1.114     jms       981: 
                    982: =back
                    983: 
                    984: =cut

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