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Diff for /loncom/publisher/lonpubdir.pm between versions 1.17 and 1.69

version 1.17, 2001/12/15 20:48:47 version 1.69, 2004/12/07 22:32:47
Line 1 Line 1
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
 # (Publication Handler  # Construction Space Directory Lister
 #  #
 # $Id$  # $Id$
 #  #
Line 25 Line 25
 #  #
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
 #   
 # (TeX Content Handler  
 #  
 # YEAR=2000  
 # 05/29/00,05/30,10/11 Gerd Kortemeyer)  
 #  
 # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer  
 # YEAR=2001  
 # 03/23 Guy Albertelli  
 # 03/24,03/29 Gerd Kortemeyer)  
 # 03/31,04/03,05/09,06/23,08/18,08/20 Gerd Kortemeyer  
 # 12/15 Scott Harrison  
 #  
 ###  ###
   
 package Apache::lonpubdir;  package Apache::lonpubdir;
Line 48  use File::Copy; Line 35  use File::Copy;
 use Apache::Constants qw(:common :http :methods);  use Apache::Constants qw(:common :http :methods);
 use Apache::loncacc;  use Apache::loncacc;
 use Apache::loncommon();  use Apache::loncommon();
   use Apache::lonhtmlcommon();
   use Apache::lonlocal;
   use Apache::lonmsg;
   use Apache::lonmenu;
   use Apache::lonnet;
   
 sub handler {  sub handler {
   
Line 55  sub handler { Line 47  sub handler {
   
   my $fn;    my $fn;
   
   if ($ENV{'form.filename'}) {  
       $fn=$ENV{'form.filename'};  
       $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)/\/home\/$1\/public_html/;    $fn = getEffectiveUrl($r);
       $fn=~s/\/[^\/]+$//;  
   } else {    # Validate access to the construction space and get username@domain.
       $fn=$r->filename();  
   }  
   
   my $uname;    my $uname;
   my $udom;    my $udom;
Line 71  sub handler { Line 61  sub handler {
              $fn,$r->dir_config('lonDefDomain'));                $fn,$r->dir_config('lonDefDomain')); 
   unless (($uname) && ($udom)) {    unless (($uname) && ($udom)) {
      $r->log_reason($uname.' at '.$udom.       $r->log_reason($uname.' at '.$udom.
          ' trying to publish file '.$ENV{'form.filename'}.           ' trying to list directory '.$ENV{'form.filename'}.
          ' ('.$fn.') - not authorized',            ' ('.$fn.') - not authorized', 
          $r->filename);            $r->filename); 
      return HTTP_NOT_ACCEPTABLE;       return HTTP_NOT_ACCEPTABLE;
   }    }
        
     # Remove trailing / from directory name.
   
   $fn=~s/\/$//;    $fn=~s/\/$//;
   
   unless ($fn) {     unless ($fn) { 
Line 87  sub handler { Line 79  sub handler {
   
 # ----------------------------------------------------------- Start page output  # ----------------------------------------------------------- Start page output
   
   
   $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//;    $thisdisfn=~s/^\/home\/$uname\/public_html//; # subdirectory part of
                                                     # construction space. 
   $r->print('<h1>Construction Space Directory <tt>'.$thisdisfn.'/</tt></h1>');    my $docroot=$r->dir_config('lonDocRoot');     # Apache  londocument root.
     
   if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {    my $resdir=$docroot.'/res/'.$udom.'/'.$uname.$thisdisfn; # Resource directory
           $r->print('<h3><font color=red>Co-Author: '.$uname.' at '.$udom.    my $targetdir=$udom.'/'.$uname.$thisdisfn; # Publiction target directory.
                '</font></h3>');    my $linkdir='/priv/'.$uname.$thisdisfn;      # Full URL name of constr space.
   
     my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
   
     &startpage($r, $uname, $udom, $thisdisfn);   # Put out the start of page.
     if ($ENV{'environment.remote'} eq 'off') {
         &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 $numdir = 0;
   my $docroot=$r->dir_config('lonDocRoot');    my $numres = 0;
     
   my $resdir=$docroot.'/res/'.$udom.'/'.$uname.$thisdisfn;    # Start off the directory table.
   my $linkdir='/~'.$uname.$thisdisfn;    $r->print('<h3>Directory Contents:</h3>');
     $r->print('<table border="0" cellspacing="2" cellpadding="2"><tr>'.
   $r->print('<table border=2>'.              '<th bgcolor="#DDDDDD">'.&mt('Type').'</th>'.
  '<tr><th>Filename</th><th>Modified</th><th>Status</th><th>&nbsp;</th></tr>');              '<th bgcolor="#DDDDDD">'.&mt('Actions').'</th>'.
               '<th bgcolor="#DDDDDD">'.&mt('Name').'</th>'.
               '<th bgcolor="#DDDDDD">'.&mt('Title').'</th>'.
       '<th bgcolor="#DDDDDD">'.&mt('Status').'</th>'.
               '<th bgcolor="#DDDDDD">'.&mt('Last Modified').
       '</th></tr>');
   
   my $filename;    my $filename;
   my $dirptr=16384;    my $dirptr=16384; # Mask indicating a directory in stat.cmode.
   
   opendir(DIR,$fn);    opendir(DIR,$fn);
   my @files=sort(readdir(DIR));    my @files=sort {uc($a) cmp uc($b)} (readdir(DIR));
   foreach my $filename (@files) {    foreach my $filename (@files) {
      my ($cdev,$cino,$cmode,$cnlink,       my ($cdev,$cino,$cmode,$cnlink,
          $cuid,$cgid,$crdev,$csize,           $cuid,$cgid,$crdev,$csize,
Line 129  sub handler { Line 125  sub handler {
      my $extension='';       my $extension='';
      if ($filename=~/\.(\w+)$/) { $extension=$1; }       if ($filename=~/\.(\w+)$/) { $extension=$1; }
      if ($cmode&$dirptr) {       if ($cmode&$dirptr) {
          my $disfilename=$filename;   putdirectory($r, $thisdisfn, $linkdir, $filename, $cmtime,$targetdir,\%bombs,\$numdir);
          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($cmtime).'</td><td>&nbsp;</td><td>&nbsp;</td></tr>'  
            );  
          }  
      } elsif (&Apache::loncommon::fileembstyle($extension) ne 'hdn') {       } elsif (&Apache::loncommon::fileembstyle($extension) ne 'hdn') {
          my $status='Unpublished';   putresource($r, $udom, $uname, $filename, $thisdisfn, $resdir, 
          my $bgcol='#FFBBBB';       $targetdir, $linkdir, $cmtime,\%bombs,\$numres);
          if (-e $resdir.'/'.$filename) {  
             my ($rdev,$rino,$rmode,$rnlink,  
                 $ruid,$rgid,$rrdev,$rsize,  
                 $ratime,$rmtime,$rctime,  
                 $rblksize,$rblocks)=stat($resdir.'/'.$filename);  
             if ($rmtime>=$cmtime) {  
  $status='Published';  
                 $bgcol='#BBFFBB';  
             } else {  
                 $status='Modified';  
                 $bgcol='#FFFFBB';  
                 if   
          (&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {  
                    $status.='<br><a href="/adm/diff?filename=/~'.$uname.  
                                          $thisdisfn.'/'.$filename.  
        '&versionone=priv" target=cat>Diffs</a>';  
         }  
             }     
             $status.='<br><a href="/adm/retrieve?filename=/~'.$uname.  
               $thisdisfn.'/'.$filename.'" target=cat>Retrieve</a>';  
  }  
          $r->print('<tr bgcolor='.$bgcol.  
          '><td><a href="'.$linkdir.'/'.$filename.'">'.$filename.  
          '</a></td><td>'.localtime($cmtime).'</td><td>'.$status.'</td>'.  
      '<td><a target="_parent" href="/adm/publish?filename=/~'.$uname.  
                                       $thisdisfn.'/'.$filename.'">'.  
          'Publish</a></td></tr>');  
      } else {       } else {
  # "hidden" extension and not a directory, so hide it away.   # "hidden" extension and not a directory, so hide it away.
      }       }
Line 179  sub handler { Line 138  sub handler {
   $r->print('</table></body></html>');    $r->print('</table></body></html>');
   return OK;      return OK;  
 }  }
   #
   #  Gets the effective URL of the request and returns it:
   #    $effn = getEffectiveUrl($r);
   #       $r  - The Apache Request object.
   sub getEffectiveUrl {
       my $r = shift;
       my $fn;
       
       if ($ENV{'form.filename'}) { # If a form filename is defined.
    $fn=$ENV{'form.filename'};
    #
    #   Replace the ~username of the URL with /home/username/public_html
    #   so that we don't have to worry about ~ expansion internally.
    #
    $fn=~s/^http\:\/\/[^\/]+\///;
           $fn=~s/^\///;
           $fn=~s/\~(\w+)/\/home\/$1\/public_html/;
   
    #  Remove trailing / strings (?) 
   
    $fn=~s/\/[^\/]+$//;
       } else {
    #   If no form is defined, use request filename.
    $fn = $r->filename();
    my $lonDocRoot=$r->dir_config('lonDocRoot');
    if ( $fn =~ /$lonDocRoot/ ) {
       #internal authentication, needs fixup.
       $fn = $r->uri(); # non users do not get the full path request
                                # through SCRIPT_FILENAME
       $fn=~s|^/~(\w+)|/home/$1/public_html|;
    }
       }
       $fn=~s/\/+/\//g;
       return $fn;
   }
   #
   #   Output the header of the page.  This includes:
   #   - The HTML header 
   #   - The H1/H3  stuff which includes the directory.
   #
   #     startpage($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) = @_;
       my $currdir = '/priv/'.$uname.$thisdisfn;
       &Apache::loncommon::content_type($r,'text/html');
       $r->send_http_header;
   
       $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
   
       my $pagetitle;
       my $formaction='/priv/'.$uname.$thisdisfn.'/';
       $formaction=~s/\/+/\//g;
       $pagetitle .= &Apache::loncommon::help_open_menu('','','','',3,'Authoring').
           '<font face="Arial, Helvetica, sans-serif" size="+1"><b>Construction Space</b>:</font>&nbsp;'.
           '<form name="dirs" method="post" action="'.$formaction.
           '" target="_parent"><tt><b>'.
           &Apache::lonhtmlcommon::crumbs($uname.$thisdisfn.'/','_top','/priv','','+1',1)."</b></tt><br />".
           &Apache::lonhtmlcommon::select_recent('construct','recent',
                    'this.form.action=this.form.recent.value;this.form.submit()').
                 '</form>';
       &Apache::lonhtmlcommon::store_recent('construct',$formaction,$formaction);
       if ($ENV{'environment.remote'} eq 'off') {
    $ENV{'request.noversionuri'}=$currdir.'/';
    $r->print(&Apache::loncommon::bodytag('Construction Space',undef,undef,undef,undef,undef,$pagetitle));
       } else {
    $r->print($pagetitle);
       }
       my $pubdirscript=(<<ENDPUBDIRSCRIPT);
   <script>
   // Store directory location for menu bar to find
   
   parent.lastknownpriv='/~$uname$thisdisfn/';
   
   // Confirmation dialogues
   
       function currdiract(theform) {
           if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'publish') {
               document.publishdir.filename.value = theform.filename.value
               pubdir(document.publishdir)
           }
           if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'publishsub') {
               document.publishdir.filename.value = theform.filename.value
               pubrecdir(document.publishdir)
           }
           if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'editcat') {
               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();
           }
       }
     
       function pubdir(theform) {
    if (confirm('Publish complete directory?')) {
               forcepub(theform)
       theform.submit();
           }
       }
       function pubrecdir(theform) {
    if (confirm('Publish directory and all subdirectories?')) {
               forcepub(theform);
               theform.pubrec.value='1';
       theform.submit();
           }
       }
   
       function forcepub(theform) {
           if (confirm('Force publication of unmodified files? - OK=yes; Cancel=No.')) {
               theform.forcerepub.value="ON";
           } 
       }
   
       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.filename.value
               return
           }
           if (theform.diraction.options[theform.diraction.selectedIndex].value == "publish") {
               pubdir(theform)
           }
           if (theform.diraction.options[theform.diraction.selectedIndex].value == "publishsub") {
               pubrecdir(theform)
           }
           if (theform.diraction.options[theform.diraction.selectedIndex].value == "editcat") {
               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()
           }
           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
             if (confirm("Are you sure you want to delete "+theform.filename.value+"?")) {
                 delform.submit()
             }
         }
         if (activity == 'obsolete') {
             var pubform = document.pubresource
             pubform.filename.value = theform.filename.value
             alert("You will be taken to the publication page.\\nCheck the 'Obsolete' checkbox at the bottom of the page, and click 'Finalize Publication'.")
             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()
         }
         return
       }
       function changename(theform,activity) {
           var newname=prompt('New Name');
           if (newname == "" || !newname)  {
               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);
   
       if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
    $r->print('<h3>'.&mt('Co-Author').': '.$uname.' at '.$udom.
     '</h3>');
       }
   }
   
   sub dircontrols {
       my ($r,$uname,$udom,$thisdisfn) = @_;
       $r->print(<<END);
           <table cellspacing="4" cellpadding="4" width="100%">
            <tr>
             <td bgcolor="#DDDDDD" align="middle"><font face="Arial, Helvetica, sans-serif" size="-1"><b>Actions for current directory</b></font></td>
             <td bgcolor="#DDDDDD" align="middle"><font face="Arial, Helvetica, sans-serif" size="-1"><b>Upload a new document</b></font></td>
             <td bgcolor="#DDDDDD" align="middle"><font face="Arial, Helvetica, sans-serif" size="-1"><b>Create a new directory or LON-CAPA document</b></font></td>
           </tr>
           <tr>
            <td bgcolor="#ccddaa" valign="top" align="center">
             <form name="curractions" method="post" action="">
              <select name="dirtask" onChange="currdiract(this.form)">
               <option>Select action</option>
               <option value="publish">Publish directory</option>
               <option value="publishsub">Publish with subdirectories</option>
               <option value="editcat">Edit catalog information</option>
               <option value="printdir">Print contents of directory</option>
              </select>
              <input type="hidden" name="filename" value="/~$uname$thisdisfn/" />
             </form>
             <form name="publishdir" method="post" action="/adm/publish" target="_parent">
              <input type="hidden" name="pubrec" value="" />
              <input type="hidden" name="filename" value="" />
              <input type="hidden" name="forcerepub" value="NO" />
             </form>
             <form name="printdir" method="post" action="/adm/printout" target="_parent">
              <input type="hidden" name="postdata" value="" />
             </form>
            </td>
            <td bgcolor="#ccddaa" valign="top" align="center">
       <form name="upublisher" enctype="multipart/form-data" method="post" action="/adm/upload" target="_parent">
         <input type="hidden" name="filename" value="/~$uname$thisdisfn/" />
         <input type="file" name="upfile" size="20" />
         <input type="button" value="Upload file"  onclick="checkUpload(this.form)" />
       </form>
    </td>
    <td bgcolor="#ccddaa" align="center">
       <form name="fileaction" method="post" action="/adm/cfile" target="_parent">
         <nobr>
    <input type="hidden" name="filename" value="/~$uname$thisdisfn/" />
     <select name="action">
       <option value="Select Action">Select action</option>
       <option value="newfile">New file:</option>
       <option value="newhtmlfile">New HTML file:</option>
       <option value="newproblemfile">New problem:</option>
                       <option value="newpagefile">New assembled page:</option>
                       <option value="newsequencefile">New assembled sequence:</option>
                       <option value="newrightsfile">New custom rights file:</option>
                       <option value="newstyfile">New style file:</option>
       <option value="newdir">New subdirectory:</option>
     </select>&nbsp;<input type="text" name="newfilename" value="Type Name Here" onfocus="if (this.value == 'Type Name Here') this.value=''" />&nbsp;<input type="button" value="Go" onclick="document.fileaction.submit()" />
    </nobr>
    </form>
     </td>
            </tr>
           </table>
   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="pubrec" value="" />
            <input type="hidden" name="filename" value="" />
            <input type="hidden" name="forcerepub" value="NO" />
          </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>
   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)
   #      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.
   # 
   sub putdirectory {
       my ($r, $reqfile, $here, $dirname, $modtime, $resdir, $bombs, $numdir) = @_;
       # construct the display filename: the directory name unless ..:
       
       my $disfilename = $dirname;
       if ($dirname eq '..') {
    $disfilename = '<i>'.&mt('Parent Directory').'</i>';
       }
       unless ( (($dirname eq '..') && ($reqfile eq '')) || ($dirname eq '.')) {
    my $kaputt=0;
    foreach (keys %{$bombs}) {
       if ($_=~m:^\Q$resdir\E/\Q$disfilename\E/:) { $kaputt=1; last; }
    }
    %Apache::lonpublisher::metadatafields=();
    %Apache::lonpublisher::metadatakeys=();
    my $construct=$here;
    $construct=~s:^/priv/(\w+)$:/home/$1/public_html:;
           my $dirpath = $here;
           $dirpath=~s:^/priv/:/~:;
    &Apache::lonpublisher::metaeval(&Apache::lonnet::getfile(
           $construct.'/'.$dirname.'/default.meta'
    ));
           my $actionitem = '';
           if ($dirname eq '..') {
               $actionitem = 'Go to ...';
           } else {
               $actionitem = 
                       '<form name="dirselect_'.$$numdir.
                       '" action="/adm/publish" target="_parent">'.
                       '<select name="diraction" onChange="SetPubDir(this.form,document)">'.
                         '<option selected="selected">'.&mt('Select action').'</option>'.
                         '<option value="open">'.&mt('Open').'</option>'.
                         '<option value="publish">'.&mt('Publish').'</option>'.
                         '<option value="publishsub">'.&mt('Publish with subdirectories').'</option>'.
                         '<option value="editcat">'.&mt('Edit catalog information').'</option>'.
                         '<option value="printdir">'.&mt('Print directory').
                       '</select>'.
                        '<input type="hidden" name="filename" value="'.$dirpath.'/'.$dirname.'/" />'.
                        '<input type="hidden" name="pubrec" value="" />'.
                        '<input type="hidden" name="forcerepub" value="" />'.
                        '<input type="hidden" name="postdata" value="" />'.
                      '</form>';
               $$numdir ++;
           }
    $r->print('<tr bgcolor="#CCCCFF">'.
     '<td><img src="'.
     $Apache::lonnet::perlvar{'lonIconsURL'}.'/folder_closed.gif" /></td>'.
     '<td>'.$actionitem.'</td>'.
     '<td><font face="arial"><a href="'.$here.'/'.$dirname.'/" target="_parent">'.
     $disfilename.'</a></font></td>'.
           '<td colspan="2">'.($kaputt?&Apache::lonhtmlcommon::authorbombs($resdir.'/'.$disfilename.'/'):'').$Apache::lonpublisher::metadatafields{'title'}.' <i>'.
     $Apache::lonpublisher::metadatafields{'subject'}.'</i> '.
     $Apache::lonpublisher::metadatafields{'keywords'}.'</td>'.
     '<td>'.&Apache::lonlocal::locallocaltime($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) = @_;
       my $pubstatus = 'unpublished';
       my $status=&mt('Unpublished');
       my $bgcolor='#FFAA99';
       my $title='&nbsp;';
       my $publish_button=&mt('Publish');
   #    my $action_buttons=
   #        '<br /><a target="_parent" href="/adm/cfile?action=delete&filename=/~'.
   # $uname.'/'.$thisdisfn.'/'.$filename.'">'.
   # &mt('Delete').'</a>';
       if (-e $resdir.'/'.$filename) {
    my ($rdev,$rino,$rmode,$rnlink,
       $ruid,$rgid,$rrdev,$rsize,
       $ratime,$rmtime,$rctime,
       $rblksize,$rblocks)=stat($resdir.'/'.$filename);
    $publish_button=&mt('Re-publish');
    if ($rmtime>=$cmtime) {
               $pubstatus = 'published';
       $status=&mt('Published').'<br />'.
    &mt(&getCopyRightString($targetdir.'/'.$filename)).' '.
    &mt(&getSourceRightString($targetdir.'/'.$filename));
       $bgcolor='#CCFF88';
       if (&Apache::lonnet::metadata($targetdir.'/'.$filename,'obsolete')) {
                   $pubstatus = 'obsolete';
    $status=&mt('Obsolete');
                   $bgcolor='#AAAAAA';
               }
   #    } else {
   # $action_buttons='';
   #    }
       $title='<a href="/res/'.$targetdir.'/'.$filename.
    '.meta" target=cat>'.
    &getTitleString($targetdir.'/'.$filename).'</a>';
    } else {
               $pubstatus = 'modified';
       $status=&mt('Modified').'<br />'.
    &mt(&getCopyRightString($targetdir.'/'.$filename)).' '.
    &mt(&getSourceRightString($targetdir.'/'.$filename));
               $bgcolor='#FFFF77';
   #    $action_buttons='';
       $title='<a href="/res/'.$targetdir.'/'.$filename.'.meta" target=cat>'.
    &getTitleString($targetdir.'/'.$filename).'</a>';
       if (&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {
    $status.='<br /><a href="/adm/diff?filename=/~'.$uname.
       $thisdisfn.'/'.$filename.
       '&versiontwo=priv" target=cat>'.&mt('Diffs').'</a>';
       }
    }
    $title.='<br /><a href="/~'.$uname.$thisdisfn.'/'.$filename.'.meta">'. 
       ($$bombs{$targetdir.'/'.$filename}?'<img src="/adm/lonMisc/bomb.gif" border="0" />':'Edit Metadata').'</a>';
    $status.='<br><a href="/adm/retrieve?filename=/~'.$uname.
       $thisdisfn.'/'.$filename.'" target="_parent">'.&mt('Retrieve').'</a>';
       }
       my $editlink='';
       my $editlink2='';
       if ($filename=~/\.(xml|html|htm|xhtml|xhtm|sty)$/) {
    $editlink=' <br />(<a href="'.$linkdir.'/'.$filename.'?forceedit=1" target="_parent">'.&mt('Edit').'</a>)';
       }
       if ($filename=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
    $editlink=' (<a href="'.$linkdir.'/'.$filename.'?forceedit=1" target="_parent">'.&mt('EditXML').'</a>)';
    $editlink2=' <br />(<a href="'.$linkdir.'/'.$filename.'?forceColoredit=1" target="_parent">'.&mt('Edit').'</a>)';
       }
       if ($filename=~/\.(zip|tar|bz2|gz|tar.gz|tar.bz2|tgz)$/) {
    $editlink=' (<a target="_parent" href="/adm/cfile?decompress=/~'.
         $uname.$thisdisfn.'/'.$filename.'">'.&mt('Decompress').'</a>)';
       }
       my $pub_select = '';
       &create_pubselect($r,\$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres);
       $r->print('<tr bgcolor="'.$bgcolor.'">'.
         '<td>'.($filename=~/[\#\~]$/?'&nbsp;':
         '<img src="'.&Apache::loncommon::icon($filename).'" /></td>').
                 '<td>'.$pub_select.'</td>'.
         '<td><font face="arial">'.
         '<a href="'.$linkdir.'/'.$filename.'" target="_parent">'.
                  $filename.'</a></font>'.$editlink2.$editlink.
         '</td>'.
         '<td>'.$title.'</td>'.
         '<td>'.$status.'</td>'.
         '<td>'.&Apache::lonlocal::locallocaltime($cmtime).'</td>'.
         "</tr>\n");
       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 value="copy"/>'.&mt('Copy');
       if ($pubstatus eq 'obsolete' || $pubstatus eq 'unpublished') {
           $$pub_select .= 
   '<option value="rename"/>'.&mt('Rename').
   '<option value="move"/>'.&mt('Move').
   '<option value="delete"/>'.&mt('Delete');
       } else {
           $$pub_select .= '
   <option value="obsolete"/>'.&mt('Mark obsolete');
       }
   # check for versions
       my $versions = &check_for_versions($r,'/'.$filename,$udom,$uname);
       if ($versions > 0) {
           $$pub_select .='
   <option value="retrieve"/>'.&mt('Retrieve old version');
       }
       $$pub_select .= '
   <option value="publish"/>'.$publish_button.
   '<option value="print"/>'.&mt('Print').
   '</select>
   <input type="hidden" name="filename" value="/~'.
    $uname.$thisdisfn.'/'.$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;
   }
   
   #
   #   Categorize files in the directory.
   #   For each file in a list of files in a file directory, 
   #   the  file categorized as one of:
   #    - directory  
   #    - sequence
   #    - problem 
   #    - Other resource.
   #
   #   For each file the modification date is determined as well.
   #   Returned is a list of sublists:
   #    (directories, sequences, problems, other)
   #   each of the sublists contains entries of the following form (sorted by
   #   filename):
   #     (filename, typecode, lastmodtime)
   #
   #   $list = CategorizeFiles($location, $files)
   #       $location   - Directory in which the files live (relative to our
   #                     execution.
   #       $files      - list of files.
   #
   sub CategorizeFiles {
       my $location = shift;
       my $files    = shift;
   }
   
 1;  1;
 __END__  __END__
   
 =head1 NAME  =head1 NAME
   
 Apache::lonpubdir - Publication Handler for Directories  Apache::lonpubdir - Construction space directory lister
   
 =head1 SYNOPSIS  =head1 SYNOPSIS
   
 Invoked (for various locations) by /etc/httpd/conf/srm.conf:  Invoked (for various locations) by /etc/httpd/conf/srm.conf:
   
 <LocationMatch "^/\~.*/$">   <LocationMatch "^/\~.*/$">
 PerlAccessHandler       Apache::loncacc   PerlAccessHandler       Apache::loncacc
 SetHandler perl-script   SetHandler perl-script
 PerlHandler Apache::lonpubdir   PerlHandler Apache::lonpubdir
 ErrorDocument     403 /adm/login   ErrorDocument     403 /adm/login
 ErrorDocument     404 /adm/notfound.html   ErrorDocument     404 /adm/notfound.html
 ErrorDocument     406 /adm/unauthorized.html   ErrorDocument     406 /adm/unauthorized.html
 ErrorDocument  500 /adm/errorhandler   ErrorDocument  500 /adm/errorhandler
 </LocationMatch>   </LocationMatch>
   
 <Location /adm/pubdir>   <Location /adm/pubdir>
 PerlAccessHandler       Apache::lonacc   PerlAccessHandler       Apache::lonacc
 SetHandler perl-script   SetHandler perl-script
 PerlHandler Apache::lonpubdir   PerlHandler Apache::lonpubdir
 ErrorDocument     403 /adm/login   ErrorDocument     403 /adm/login
 ErrorDocument     404 /adm/notfound.html   ErrorDocument     404 /adm/notfound.html
 ErrorDocument     406 /adm/unauthorized.html   ErrorDocument     406 /adm/unauthorized.html
 ErrorDocument  500 /adm/errorhandler   ErrorDocument  500 /adm/errorhandler
 </Location>   </Location>
   
 =head1 INTRODUCTION  =head1 INTRODUCTION
   
 This module enables cookie based authentication and is used  This module publishes a directory of files.
 to control access for many different LON-CAPA URIs.  
   
 Whenever the client sends the cookie back to the server,   
 this cookie is handled by either lonacc.pm or loncacc.pm  
 (see srm.conf for what is invoked when).  If  
 the cookie is missing or invalid, the user is re-challenged  
 for login information.  
   
 This is part of the LearningOnline Network with CAPA project  This is part of the LearningOnline Network with CAPA project
 described at http://www.lon-capa.org.  described at http://www.lon-capa.org.
Removed from v.1.17  
changed lines
  Added in v.1.69

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