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Diff for /loncom/publisher/lonpubdir.pm between versions 1.4 and 1.148

version 1.4, 2001/04/09 23:49:04 version 1.148, 2013/07/27 21:38:54
Line 1 Line 1
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
   # Authoring Space Directory Lister
 #  #
 # (Publication Handler  # $Id$
 #   
 # (TeX Content Handler  
 #  #
 # 05/29/00,05/30,10/11 Gerd Kortemeyer)  # Copyright Michigan State University Board of Trustees
 #  #
 # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer  # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
 # 03/23 Guy Albertelli  
 # 03/24,03/29 Gerd Kortemeyer)  
 #  #
 # 03/31,04/03 Gerd Kortemeyer  # LON-CAPA is free software; you can redistribute it and/or modify
   # it under the terms of the GNU General Public License as published by
   # the Free Software Foundation; either version 2 of the License, or
   # (at your option) any later version.
   #
   # LON-CAPA is distributed in the hope that it will be useful,
   # but WITHOUT ANY WARRANTY; without even the implied warranty of
   # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   # GNU General Public License for more details.
   #
   # You should have received a copy of the GNU General Public License
   # along with LON-CAPA; if not, write to the Free Software
   # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   #
   # /home/httpd/html/adm/gpl.txt
   #
   # http://www.lon-capa.org/
   #
   ###
   
 package Apache::lonpubdir;  package Apache::lonpubdir;
   
Line 18  use strict; Line 33  use strict;
 use Apache::File;  use Apache::File;
 use File::Copy;  use File::Copy;
 use Apache::Constants qw(:common :http :methods);  use Apache::Constants qw(:common :http :methods);
   use Apache::loncommon();
   use Apache::lonhtmlcommon();
   use Apache::londiff();
   use Apache::lonlocal;
   use Apache::lonmsg;
   use Apache::lonmenu;
   use Apache::lonnet;
   use LONCAPA;
   
 sub handler {  sub handler {
   
   my $r=shift;    my $r=shift;
   
   my $fn;    # Validate access to the construction space and get username@domain.
   
   if ($ENV{'form.filename'}) {    my $uname;
       $fn=$ENV{'form.filename'};    my $udom;
       $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)/\/home\/$1\/public_html/;  
       $fn=~s/\/[^\/]+$//;  
   } else {  
       $fn=$r->filename();  
   }  
        
   $fn=~s/\/$//;  
   
   unless ($fn) {     ($uname,$udom)=&Apache::lonnet::constructaccess($r->uri); 
      $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.    unless (($uname) && ($udom)) {
          ' trying to list empty directory', $r->filename);        return HTTP_NOT_ACCEPTABLE;
      return HTTP_NOT_FOUND;    }
   }   
   
 # ----------------------------------------------------------- Start page output  # ----------------------------------------------------------- Start page output
   
   my $uname=$ENV{'user.name'};    my $fn=$r->filename;
   my $udom=$ENV{'user.domain'};    $fn=~s/\/$//;
   
   $r->content_type('text/html');  
   $r->send_http_header;  
   
   $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');  
   
   $r->print(  
    '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');  
   
   my $thisdisfn=$fn;    my $thisdisfn=$fn;
   $thisdisfn=~s/^\/home\/$uname\/public_html//;    my $docroot=$r->dir_config('lonDocRoot');     # Apache  londocument root.
       $thisdisfn=~s/^\Q$docroot\E\/priv//;
   $r->print('<h1>Construction Space Directory <tt>'.$thisdisfn.'/</tt></h1>');  
   
   my $docroot=$r->dir_config('lonDocRoot');    my $resdir=$docroot.'/res'.$thisdisfn; # Resource directory
     my $targetdir='/res'.$thisdisfn; # Publication target directory.
     my $linkdir='/priv'.$thisdisfn;      # Full URL name of constr space.
   
     my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
   
     &startpage($r, $uname, $udom, $thisdisfn);   # Put out the start of page.
     &dircontrols($r,$uname,$udom,$thisdisfn);    # Put out actions for directory, 
                                                  # browse/upload + new file page.
     &resourceactions($r,$uname,$udom,$thisdisfn); #Put out form used for printing/deletion etc.
   
   my $resdir=$docroot.'/res/'.$udom.'/'.$uname.$thisdisfn;    my $numdir = 0;
   my $linkdir='/~'.$uname.$thisdisfn;    my $numres = 0;
     
   $r->print('<table border=2>'.    # Start off the directory table.
             '<tr><th>Filename</th><th>Modified</th><th>Status</th></tr>');    $r->print(&Apache::loncommon::start_data_table()
              .&Apache::loncommon::start_data_table_header_row()
              .'<th>'.&mt('Type').'</th>'
              .'<th>'.&mt('Actions').'</th>'
              .'<th>'.&mt('Name').'</th>'
              .'<th>'.&mt('Title').'</th>'
              .'<th colspan="2">'.&mt('Status').'</th>'
              .'<th>'.&mt('Last Modified').'</th>'
              .&Apache::loncommon::end_data_table_header_row()
     );
   
   my $filename;    my $filename;
   my $dirptr=16384;    my $dirptr=16384; # Mask indicating a directory in stat.cmode.
   
   opendir(DIR,$fn);    opendir(DIR,$fn);
   while ($filename=readdir(DIR)) {    my @files=sort {uc($a) cmp uc($b)} (readdir(DIR));
     foreach my $filename (@files) {
        next if ($filename eq '.DS_Store');
      my ($cdev,$cino,$cmode,$cnlink,       my ($cdev,$cino,$cmode,$cnlink,
          $cuid,$cgid,$crdev,$csize,           $cuid,$cgid,$crdev,$csize,
          $catime,$cmtime,$cctime,           $catime,$cmtime,$cctime,
          $cblksize,$cblocks)=stat($fn.'/'.$filename);           $cblksize,$cblocks)=stat($fn.'/'.$filename);
      $filename=~/\.(\w+)$/;  
      if (($1 ne 'meta') && (&Apache::lonnet::fileembstyle($1))) {       my $extension='';
          my $status='Unpublished';       if ($filename=~/\.(\w+)$/) { $extension=$1; }
          my $bgcol='#FFBBBB';       if ($cmode&$dirptr) {
          if (-e $resdir.'/'.$filename) {   &putdirectory($r, $thisdisfn, $linkdir, $filename, $cmtime,$targetdir,\%bombs,\$numdir);
             my ($rdev,$rino,$rmode,$rnlink,       } elsif (&Apache::loncommon::fileembstyle($extension) ne 'hdn') {
                 $ruid,$rgid,$rrdev,$rsize,   &putresource($r, $udom, $uname, $filename, $thisdisfn, $resdir, 
                 $ratime,$rmtime,$rctime,       $targetdir, $linkdir, $cmtime,\%bombs,\$numres);
                 $rblksize,$rblocks)=stat($resdir.'/'.$filename);       } else {
             if ($rmtime>=$cmtime) {   # "hidden" extension and not a directory, so hide it away.
  $status='Published';  
                 $bgcol='#BBFFBB';  
             } else {  
                 $status='Modified';  
                 $bgcol='#FFFFBB';  
             }     
  }  
          $r->print('<tr bgcolor='.$bgcol.  
          '><td><a href="'.$linkdir.'/'.$filename.'">'.$filename.  
          '</a></td><td>'.localtime($cmtime).'</td><td>'.$status.'</td></tr>');  
      } elsif ($cmode&$dirptr) {  
          my $disfilename=$filename;  
          if ($filename eq '..') {  
      $disfilename='<i>Parent Directory</i>';  
          }  
          unless ((($filename eq '..') && ($thisdisfn eq '')) ||  
                  ($filename eq '.')) {  
            $r->print('<tr bgcolor=#BBBBFF'.  
            '><td><a href="'.$linkdir.'/'.$filename.'">'.$disfilename.  
            '</a></td><td>'.localtime($cmtime).'</td><td>&nbsp;</td></tr>');  
          }  
      }       }
   }    }
   closedir(DIR);    closedir(DIR);
   
   $r->print('</table></body></html>');    $r->print(&Apache::loncommon::end_data_table()
              .&Apache::loncommon::end_page()
     );
   return OK;      return OK;  
 }  }
   
   #
   #   Output the header of the page.  This includes:
   #   - The HTML header 
   #   - The H1/H3  stuff which includes the directory.
   #
   #     startpage($r, $uame, $udom, $thisdisfn);
   #      $r     - The apache request object.
   #      $uname - User name.
   #      $udom  - Domain name the user is logged in under.
   #      $thisdisfn - Displayable version of the filename.
   
   sub startpage {
       my ($r, $uname, $udom, $thisdisfn) = @_;
       &Apache::loncommon::content_type($r,'text/html');
       $r->send_http_header;
   
       my $formaction='/priv'.$thisdisfn.'/';
       $formaction=~s|/+|/|g;
       &Apache::lonhtmlcommon::store_recent('construct',$formaction,$formaction);
   
       &Apache::lonhtmlcommon::clear_breadcrumbs();
       &Apache::lonhtmlcommon::add_breadcrumb({
           'text'  => 'Authoring Space',
           'href'  => &Apache::loncommon::authorspace($formaction),
       });
       # breadcrumbs (and tools) will be created 
       # in start_page->bodytag->innerregister
   
       $env{'request.noversionuri'}=$formaction;
       $r->print(&Apache::loncommon::start_page('Authoring Space',undef));
   
       my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
       my $current_disk_usage = &Apache::lonnet::diskusage($udom,$uname,"$londocroot/priv/$udom/$uname");
       my $disk_quota = &Apache::loncommon::get_user_quota($uname,$udom,'author'); #expressed in Mb
       $disk_quota = 1000 * $disk_quota; # convert from Mb to kb
   
       $r->print(&Apache::loncommon::head_subbox(
                        '<div style="float:right;padding-top:0;margin-top;0">'
                       .&Apache::lonhtmlcommon::display_usage($current_disk_usage,$disk_quota)
                       .'</div>'
                       .&Apache::loncommon::CSTR_pageheader()));
   
       my $esc_thisdisfn = &Apache::loncommon::escape_single($thisdisfn);
       my $doctitle = 'LON-CAPA '.&mt('Authoring Space');
       my $newname = &mt('New Name');
       my $pubdirscript=(<<ENDPUBDIRSCRIPT);
   <script type="text/javascript">
   top.document.title = '$esc_thisdisfn/ - $doctitle';
   // Store directory location for menu bar to find
   
   parent.lastknownpriv='/priv$esc_thisdisfn/';
   
   // Confirmation dialogues
   
       function currdiract(theform) {
           if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'publish') {
               document.publishdir.filename.value = theform.filename.value;
       document.publishdir.submit();
           }
           if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'editmeta') {
               top.location=theform.filename.value+'default.meta'
           }
           if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'printdir' ) {
               document.printdir.postdata.value=theform.filename.value
               document.printdir.submit();
           }
           if (theform.dirtask.options[theform.dirtask.selectedIndex].value == "delete") {
                 var delform = document.delresource
                 delform.filename.value = theform.filename.value
                 delform.submit()
           }
       }
     
       function checkUpload(theform) {
           if (theform.file == '') {
               alert("Please use 'Browse..' to choose a file first, before uploading")
               return 
           }
           theform.submit()  
       }
   
       function SetPubDir(theform,printForm) {
           if (theform.diraction.options[theform.diraction.selectedIndex].value == "open") {
               top.location = theform.openname.value
               return
           }
           if (theform.diraction.options[theform.diraction.selectedIndex].value == "publish") {
               theform.submit();
           }
           if (theform.diraction.options[theform.diraction.selectedIndex].value == "editmeta") {
               top.location=theform.filename.value+'default.meta'
           }
           if (theform.diraction.options[theform.diraction.selectedIndex].value == "printdir") {
               theform.action = '/adm/printout'
               theform.postdata.value = theform.filename.value
               theform.submit()
           }
           if (theform.diraction.options[theform.diraction.selectedIndex].value == "delete") {
                 var delform = document.delresource
                 delform.filename.value = theform.filename.value
                 delform.submit()
           }
           return
       }
       function SetResChoice(theform) {
         var activity = theform.reschoice.options[theform.reschoice.selectedIndex].value
         if ((activity == 'rename') || (activity == 'copy') || (activity == 'move')) {
             changename(theform,activity)
         }
         if (activity == 'publish') {
             var pubform = document.pubresource
             pubform.filename.value = theform.filename.value
             pubform.submit()
         }
         if (activity == 'delete') {
             var delform = document.delresource
             delform.filename.value = theform.filename.value
             delform.submit()
         }
         if (activity == 'obsolete') {
             var pubform = document.pubresource
             pubform.filename.value = theform.filename.value
             pubform.makeobsolete.value=1;
             pubform.submit()
         }
         if (activity == 'print') {
             document.printresource.postdata.value = theform.filename.value
             document.printresource.submit()
         }
         if (activity == 'retrieve') {
             document.retrieveres.filename.value = theform.filename.value
             document.retrieveres.submit()
         }
         if (activity == 'cleanup') {
             document.cleanup.filename.value = theform.filename.value
             document.cleanup.submit()
         }
         return
       }
       function changename(theform,activity) {
           var oldname=theform.dispfilename.value;
           var newname=prompt('$newname',oldname);
           if (newname == "" || !newname || newname == oldname)  {
               return
           }
           document.moveresource.newfilename.value = newname
           document.moveresource.filename.value = theform.filename.value
           document.moveresource.action.value = activity
           document.moveresource.submit();
       }
   </script>
   ENDPUBDIRSCRIPT
       $r->print($pubdirscript);
   }
   
   sub dircontrols {
       my ($r,$uname,$udom,$thisdisfn) = @_;
       my %lt=&Apache::lonlocal::texthash(
                                          cnpd => 'Cannot publish directory',
                                          cnrd => 'Cannot retrieve directory',
                                          mcdi => 'Must create new subdirectory inside a directory',
                                          pubr => 'Publish this Resource',
                                          pubd => 'Publish this Directory',
                                          dedr => 'Delete Directory',
                                          rtrv => 'Retrieve Old Version',
                                          list => 'List Directory',
                                          uplo => 'Upload file',  
                                          dele => 'Delete',
                                          edit => 'Edit Metadata', 
                                          sela => 'Select Action',
                                          nfil => 'New file',
                                          nhtm => 'New HTML file',
                                          nprb => 'New problem',
                                          npag => 'New assembled page',
                                          nseq => 'New assembled sequence',
                                          ncrf => 'New custom rights file',
                                          nsty => 'New style file',
                                          nlib => 'New library file',
                                          nbt  => 'New bridgetask file',
                                          nsub => 'New subdirectory',
                                          renm => 'Rename current file to',
                                          move => 'Move current file to',
                                          copy => 'Copy current file to',
                                          type => 'Type Name Here',
                                          go   => 'Go',
                                          prnt => 'Print contents of directory',
                                          crea => 'Create a new directory or LON-CAPA document',
          acti => 'Actions for current directory',
          updc => 'Upload a new document',
          pick => 'Please select an action to perform using the new filename',
                                         );
       my $mytype = $lt{'type'}; # avoid conflict with " and ' in javascript
       $r->print(<<END);
   <div class="LC_columnSection">
     <div>
       <form name="curractions" method="post" action="">
         <fieldset>
           <legend>$lt{'acti'}</legend>
           <select name="dirtask" onchange="currdiract(this.form)">
               <option>$lt{'sela'}</option>
               <option value="publish">$lt{'pubd'}</option>
               <option value="editmeta">$lt{'edit'}</option>
               <option value="printdir">$lt{'prnt'}</option>
               <option value="delete">$lt{'dedr'}</option>
           </select>
           <input type="hidden" name="filename" value="/priv$thisdisfn/" />
         </fieldset>
       </form>
       <form name="publishdir" method="post" action="/adm/publish" target="_parent">
         <input type="hidden" name="pubrec" value="" />
         <input type="hidden" name="filename" value="" />
       </form>
       <form name="printdir" method="post" action="/adm/printout" target="_parent">
         <input type="hidden" name="postdata" value="" />
       </form>
     </div>
   
     <div>
       <form name="upublisher" enctype="multipart/form-data" method="post" action="/adm/upload" target="_parent">
         <fieldset>
           <legend>$lt{'updc'}</legend>
           <input type="hidden" name="filename" value="/priv$thisdisfn/" />
           <input type="file" name="upfile" size="20" />
           <input type="button" value="$lt{'uplo'}"  onclick="checkUpload(this.form)" />
         </fieldset>
       </form>
     </div>
   
     <div>
       <form name="fileaction" method="post" action="/adm/cfile" target="_parent">
         <fieldset>
                 <legend>$lt{'crea'}</legend>
         <span class="LC_nobreak">
    <input type="hidden" name="filename" value="/priv$thisdisfn/" />
                     <script type="text/javascript">
                       function validate_go() {
                           var selected = document.fileaction.action.selectedIndex;
                           if (selected == 0) {
                               alert('$lt{'pick'}');
                           } else {
                               document.fileaction.submit();
                           }
                       }
                     </script>
     <select name="action">
       <option value="none">$lt{'sela'}</option>
       <option value="newfile">$lt{'nfil'}:</option>
       <option value="newhtmlfile">$lt{'nhtm'}:</option>
       <option value="newproblemfile">$lt{'nprb'}:</option>
                       <option value="newpagefile">$lt{'npag'}:</option>
                       <option value="newsequencefile">$lt{'nseq'}:</option>
                       <option value="newrightsfile">$lt{'ncrf'}:</option>
                       <option value="newstyfile">$lt{'nsty'}:</option>
                       <option value="newtaskfile">$lt{'nbt'}:</option>
                       <option value="newlibraryfile">$lt{'nlib'}:</option>
               <option value="newdir">$lt{'nsub'}:</option>
     </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();" />
    </span>
         </fieldset>
       </form>
     </div>
   </div>
   END
   }
   
   sub resourceactions {
       my ($r,$uname,$udom,$thisdisfn) = @_;
       $r->print(<<END);
          <form name="moveresource" action="/adm/cfile" target="_parent" method="post">
            <input type="hidden" name="filename" value="" />
            <input type="hidden" name="newfilename" value="" />
            <input type="hidden" name="action" value="" />
          </form>
          <form name="delresource" action="/adm/cfile" target="_parent" method="post">
            <input type="hidden" name="filename" value="" />
            <input type="hidden" name="action" value="delete" />
          </form>
          <form name="pubresource" action="/adm/publish" target="_parent" method="post">
            <input type="hidden" name="filename" value="" />
            <input type="hidden" name="makeobsolete" value="0" />
          </form>
          <form name="printresource" action="/adm/printout" target="_parent" method="post">
              <input type="hidden" name="postdata" value="" />
          </form>
          <form name="retrieveres" action="/adm/retrieve" target="_parent" method="post">
              <input type="hidden" name="filename" value="" />
          </form>
          <form name="cleanup" action="/adm/cleanup" target="_parent" method="post">
              <input type="hidden" name="filename" value="" />
          </form>
   END
   }
   
   #
   #   Get the title string or "[untitled]" if the file has no title metadata:
   #   Without the latter substitution, it's impossible to examine metadata for
   #   untitled resources.  Resources may be legitimately untitled, to prevent
   #   searches from locating them.
   #
   #   $str = getTitleString($fullname);
   #       $fullname - Fully qualified filename to check.
   #
   sub getTitleString {
       my $fullname = shift;
       my $title    = &Apache::lonnet::metadata($fullname, 'title');
   
       unless ($title) {
    $title = "[".&mt('untitled')."]";
       }
       return $title;
   }
   
   sub getCopyRightString {
       my $fullname = shift;
       return &Apache::lonnet::metadata($fullname, 'copyright');
   }
   
   sub getSourceRightString {
       my $fullname = shift;
       return &Apache::lonnet::metadata($fullname, 'sourceavail');
   }
   #
   #  Put out a directory table row:
   #    putdirectory(r, base, here, dirname, modtime, targetdir, bombs, numdir)
   #      r         - Apache request object.
   #      reqfile   - File in request.
   #      here      - Where we are in directory tree.
   #      dirname   - Name of directory special file.
   #      modtime   - Encoded modification time.
   #      targetdir - Publication target directory.
   #      bombs     - Reference to hash of URLs with runtime error messages.
   #      numdir    - Reference to scalar used to track number of sub-directories
   #                  in directory (used in form name for each "actions" dropdown).
   #
   sub putdirectory {
       my ($r, $reqfile, $here, $dirname, $modtime, $targetdir, $bombs, $numdir) = @_;
   
   # construct the display filename: the directory name unless ..:
      
       my $actionitem;
    
       my $disfilename = $dirname;
   # Don't display directory itself, and there is no way up from root directory
       unless ((($dirname eq '..') && ($reqfile=~/^\/[^\/]+\/[^\/]+$/)) || ($dirname eq '.')) {
           my $kaputt=0;
           if (ref($bombs) eq 'HASH') {
               foreach my $key (keys(%{$bombs})) {
                   my $currentdir = &Apache::lonnet::declutter("$targetdir/$disfilename");
                   if (($key) =~ m{^\Q$currentdir\E/}) { $kaputt=1; last; }
               }
           }
   #
   # Get the metadata from that directory's default.meta to display titles
   #
    %Apache::lonpublisher::metadatafields=();
    %Apache::lonpublisher::metadatakeys=();
    &Apache::lonpublisher::metaeval(
                    &Apache::lonnet::getfile($r->dir_config('lonDocRoot').$here.'/'.$dirname.'/default.meta')
                                          );
           if ($dirname eq '..') {
               $actionitem = &mt('Go to ...');
               $disfilename = '<i>'.&mt('Parent Directory').'</i>';
           } else {
               $actionitem = 
                       '<form name="dirselect_'.$$numdir.
                       '" action="/adm/publish" target="_parent">'.
                       '<select name="diraction" onchange="SetPubDir(this.form,document)">'.
                         '<option selected="selected">'.&mt('Select action').'</option>'.
                         '<option value="open">'.&mt('Open').'</option>'.
                         '<option value="publish">'.&mt('Publish').'</option>'.
                         '<option value="editmeta">'.&mt('Edit Metadata').'</option>'.
                         '<option value="printdir">'.&mt('Print directory').'</option>'.
                         '<option value="delete">'.&mt('Delete directory').'</option>'.
                       '</select>'.
                        '<input type="hidden" name="filename" value="'.&HTML::Entities::encode($here.'/'.$dirname,'<>&"').'/" />'.
                        '<input type="hidden" name="openname" value="'.$here.'/'.$dirname.'/" />'.
                        '<input type="hidden" name="postdata" value="" />'.
                      '</form>';
               $$numdir ++;
           }
    $r->print('<tr class="LC_browser_folder">'.
     '<td><img src="'.
     $Apache::lonnet::perlvar{'lonIconsURL'}.'/navmap.folder.closed.gif" alt="folder" /></td>'.
     '<td>'.$actionitem.'</td>'.
     '<td><span class="LC_filename"><a href="'.&HTML::Entities::encode($here.'/'.$dirname,'<>&"').'/" target="_parent">'.
     $disfilename.'</a></span></td>'.
           '<td colspan="3">'.($kaputt?&Apache::lonhtmlcommon::authorbombs($targetdir.'/'.$disfilename.'/'):'').$Apache::lonpublisher::metadatafields{'title'});
    if ($Apache::lonpublisher::metadatafields{'subject'} ne '') {
       $r->print(' <i>'.
         $Apache::lonpublisher::metadatafields{'subject'}.
         '</i> ');
    }
    $r->print($Apache::lonpublisher::metadatafields{'keywords'}.'</td>'.
     '<td>'.&Apache::lonlocal::locallocaltime($modtime).'</td>'.
     "</tr>\n");
       }
       return OK;
   }
   #
   #   Put a table row for a file resource.
   #
   sub putresource {
       my ($r, $udom, $uname, $filename, $thisdisfn, 
    $resdir, $targetdir, $linkdir,
    $cmtime,$bombs,$numres) = @_;
       &Apache::lonnet::devalidate_cache_new('meta',$targetdir.'/'.$filename);
       my $pubstatus = 'unpublished';
       my $status=&mt('Unpublished');
       my $css_class='LC_browser_file';
       my $title='';
       my $publish_button=&mt('Publish');
       my $cstr_dir = $r->dir_config('lonDocRoot').'/priv'.$thisdisfn;
       my $linkfilename=&HTML::Entities::encode('/priv'.$thisdisfn.'/'.$filename,'<>&"');
   
       if (-e $resdir.'/'.$filename) {
           my $same=0;
    my ($rdev,$rino,$rmode,$rnlink,
       $ruid,$rgid,$rrdev,$rsize,
       $ratime,$rmtime,$rctime,
       $rblksize,$rblocks)=stat($resdir.'/'.$filename);
           if ($rmtime>=$cmtime) {
              $same=1;
           } else {
              if (&Apache::londiff::are_different_files($resdir.'/'.$filename,
        $cstr_dir.'/'.$filename)) {
                 $same=0;
              } else {
                 $same=1;
              }
           }
    my $meta_cmtime = (stat($cstr_dir.'/'.$filename.'.meta'))[9];
    my $meta_rmtime = (stat($resdir.'/'.$filename.'.meta'))[9];
    my $meta_same = 1;
    if ($meta_rmtime < $meta_cmtime
       && &Apache::londiff::are_different_files($resdir.'/'.$filename.'.meta',
        $cstr_dir.'/'.$filename.'.meta')) {
       $meta_same = 0;
    }
    $publish_button=&mt('Re-publish');
   
           my $rights_status =
               &mt(&getCopyRightString($targetdir.'/'.$filename)).', ';
   
           my %lt_SourceRight = &Apache::lonlocal::texthash(
                  'open'   => 'Source: open',
                  'closed' => 'Source: closed',
           );
           $rights_status .=
               $lt_SourceRight{&getSourceRightString($targetdir.'/'.$filename)};
   
    $title = '<a href="'.$targetdir.'/'.$filename.
       '.meta" target="cat">'.
       &getTitleString($targetdir.'/'.$filename).'</a>';
    if ($same) {
       if (&Apache::lonnet::metadata($targetdir.'/'.$filename,'obsolete')) {
                   $pubstatus = 'obsolete';
    $status=&mt('Obsolete');
               } else {
    if (!$meta_same) {
       $pubstatus = 'metamodified';
    } else {
       $pubstatus = 'published';
    }
    $status=&mt('Published').
       '<br />'. $rights_status;
       }
    } else {
               $pubstatus = 'modified';
       $status=&mt('Modified').
    '<br />'. $rights_status;
       if (&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {
    $status.='<br />'.
                            &Apache::loncommon::modal_link(
                                '/adm/diff?filename='.$linkfilename.'&amp;versiontwo=priv',
                                &mt('Diffs'),600,500);
       }
    } 
    if (!$meta_same) {
       $title = &mt('Metadata Modified').'<br />'.$title.
    '<br />'.
                   &Apache::loncommon::modal_link(
                       '/adm/diff?filename='.$linkfilename.'.meta'.'&amp;versiontwo=priv',
                       &mt('Metadata Diffs'),600,500);
       $title.="\n".'<br />'.
                   &Apache::loncommon::modal_link(
                       '/adm/retrieve?filename='.$linkfilename.'.meta&amp;inhibitmenu=yes&amp;add_modal=yes',
                       &mt('Retrieve Metadata'),600,500);
    }
    $status.="\n".'<br />'.
                &Apache::loncommon::modal_link(
                    '/adm/retrieve?filename='.$linkfilename.'&amp;inhibitmenu=yes&amp;add_modal=yes',&mt('Retrieve'),600,500);
       }
       # Allow editing metadata of published and unpublished resources
       $title .= "\n".'<br />' if ($title);
       $title .= '<a href="'.$linkfilename.'.meta">'.
                 ($$bombs{&Apache::lonnet::declutter($targetdir.'/'.$filename)}?
                     '<img src="/adm/lonMisc/bomb.gif" border="0" alt="'.&mt('bomb').'" />':
                     &mt('Edit Metadata')).
                 '</a>';
   
       my $editlink='';
       my $editlink2='';
       if ($filename=~/\.(xml|html|htm|xhtml|xhtm|sty)$/) {
    $editlink=' <br />(<a href="'.$linkdir.'/'.$filename.'?editmode=Edit&amp;problemmode=edit">'.&mt('Edit').'</a>)';
       }
       if ($filename=~/$LONCAPA::assess_re/) {
    $editlink=' (<a href="'.$linkdir.'/'.$filename.'?editmode=Edit&amp;problemmode=editxml">'.&mt('EditXML').'</a>)';
    $editlink2=' <br />(<a href="'.$linkdir.'/'.$filename.'?editmode=Edit&amp;problemmode=edit">'.&mt('Edit').'</a>)';
       }
       if ($filename=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm|sty)$/) {
    $editlink.=' (<a href="/adm/cleanup?filename='.$linkfilename.'" target="_parent">'.&mt('Clean Up').')</a>';
       }
       if ($filename=~/\.(zip|tar|bz2|gz|tar.gz|tar.bz2|tgz)$/) {
    $editlink=' (<a target="_parent" href="/adm/cfile?decompress='.$linkfilename.'">'.&mt('Decompress').'</a>)';
       }
       my $pub_select = '';
       &create_pubselect($r,\$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres);
       $r->print(&Apache::loncommon::start_data_table_row().
         '<td>'.($filename=~/[\#\~]$/?'&nbsp;':
         '<img src="'.&Apache::loncommon::icon($filename).'" alt="" />').'</td>'.
                 '<td>'.$pub_select.'</td>'.
         '<td><span class="LC_filename">'.
         '<a href="'.$linkdir.'/'.$filename.'" target="_parent">'.
                  $filename.'</a></span>'.$editlink2.$editlink.
         '</td>'.
         '<td>'.$title.'</td>'.
                 '<td class="LC_browser_file_'.$pubstatus.'">&nbsp;&nbsp;</td>'. # Display publication status
                 '<td>'.$status.'</td>'.
         '<td>'.&Apache::lonlocal::locallocaltime($cmtime).'</td>'.
         &Apache::loncommon::end_data_table_row()
       );
       return OK;
   }
   
   sub create_pubselect {
       my ($r,$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres) = @_;
       $$pub_select = '
   <form name="resselect_'.$$numres.'" action="">
   <select name="reschoice"  onchange="SetResChoice(this.form)">
   <option>'.&mt('Select action').'</option>'.
   '<option value="copy">'.&mt('Copy').'</option>';
       if ($pubstatus eq 'obsolete' || $pubstatus eq 'unpublished') {
           $$pub_select .= 
   '<option value="rename">'.&mt('Rename').'</option>'.
   '<option value="move">'.&mt('Move').'</option>'.
   '<option value="delete">'.&mt('Delete').'</option>';
       } else {
           $$pub_select .= '
   <option value="obsolete">'.&mt('Mark obsolete').'</option>';
       }
   # check for versions
       my $versions = &check_for_versions($r,'/'.$filename,$udom,$uname);
       if ($versions > 0) {
           $$pub_select .='
   <option value="retrieve">'.&mt('Retrieve old version').'</option>';
       }
       $$pub_select .= '
   <option value="publish">'.$publish_button.'</option>'.
   '<option value="cleanup">'.&mt('Clean up').'</option>'.
   '<option value="print">'.&mt('Print').'</option>'.
   '</select>
   <input type="hidden" name="filename" value="/priv'.
    &HTML::Entities::encode($thisdisfn.'/'.$filename,'<>&"').'" />
    <input type="hidden" name="dispfilename" value="'.
    &HTML::Entities::encode($filename).'" /></form>';
       $$numres ++;
   }
   
   sub check_for_versions {
       my ($r,$fn,$udom,$uname) = @_;
       my $versions = 0;
       my $docroot=$r->dir_config('lonDocRoot');
       my $resfn=$docroot.'/res/'.$udom.'/'.$uname.$fn;
       my $resdir=$resfn;
       $resdir=~s/\/[^\/]+$/\//;
       $fn=~/\/([^\/]+)\.(\w+)$/;
       my $main=$1;
       my $suffix=$2;
       opendir(DIR,$resdir);
       while (my $filename=readdir(DIR)) {
           if ($filename=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/) {
               $versions ++;        
           }
       }
       return $versions;
   }
   
 1;  1;
 __END__  __END__
   
   
   =head1 NAME
   
   Apache::lonpubdir - Authoring space directory lister
   
   =head1 SYNOPSIS
   
   Invoked (for various locations) by /etc/httpd/conf/srm.conf:
   
    <LocationMatch "^/+priv.*/$">
    PerlAccessHandler       Apache::loncacc
    SetHandler perl-script
    PerlHandler Apache::lonpubdir
    ErrorDocument     403 /adm/login
    ErrorDocument     404 /adm/notfound.html
    ErrorDocument     406 /adm/unauthorized.html
    ErrorDocument  500 /adm/errorhandler
    </LocationMatch>
   
    <Location /adm/pubdir>
    PerlAccessHandler       Apache::lonacc
    SetHandler perl-script
    PerlHandler Apache::lonpubdir
    ErrorDocument     403 /adm/login
    ErrorDocument     404 /adm/notfound.html
    ErrorDocument     406 /adm/unauthorized.html
    ErrorDocument  500 /adm/errorhandler
    </Location>
   
   =head1 INTRODUCTION
   
   This module publishes a directory of files.
   
   This is part of the LearningOnline Network with CAPA project
   described at http://www.lon-capa.org.
   
   =head1 HANDLER SUBROUTINE
   
   This routine is called by Apache and mod_perl.
   
   =over 4
   
   =item *
   
   read in information
   
   =item *
   
   start page output
   
   =item *
   
   run through list of files and attempt to publish unhidden files
   
   =back
   
   =head1 SUBROUTINES:
   
   =over
   
   =item startpage($r, $uame, $udom, $thisdisfn)
   
   Output the header of the page.  This includes:
    - The HTML header 
    - The H1/H3  stuff which includes the directory.
    
       startpage($r, $uame, $udom, $thisdisfn);
           $r     - The apache request object.
           $uname - User name.
           $udom  - Domain name the user is logged in under.
           $thisdisfn - Displayable version of the filename.
   
   =item getTitleString($fullname)
   
       Get the title string or "[untitled]" if the file has no title metadata:
       Without the latter substitution, it's impossible to examine metadata for
       untitled resources.  Resources may be legitimately untitled, to prevent
       searches from locating them.
       
       $str = getTitleString($fullname);
           $fullname - Fully qualified filename to check.
   
   =item putdirectory($r, $base, $here, $dirname, $modtime, $targetdir, $bombs,
                      $numdir)
   
       Put out a directory table row:
       
           $r        - Apache request object.
           $reqfile  - File in request.
           $here     - Where we are in directory tree.
           $dirname  - Name of directory special file.
           $modtime  - Encoded modification time.
           targetdir - Publication target directory.
           bombs     - Reference to hash of URLs with runtime error messages.
           numdir    - Reference to scalar used to track number of sub-directories
                       in directory (used in form name for each "actions" dropdown).
   
   =back
   
   =cut
   
Removed from v.1.4  
changed lines
  Added in v.1.148

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