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Diff for /loncom/publisher/lonpubdir.pm between versions 1.6 and 1.114.2.1

version 1.6, 2001/05/09 16:57:07 version 1.114.2.1, 2010/02/11 21:49:19
Line 1 Line 1
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
   # Construction Space Directory Lister
 #  #
 # (Publication Handler  # $Id$
 #   #
 # (TeX Content Handler  # Copyright Michigan State University Board of Trustees
   #
   # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   #
   # 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.
 #  #
 # 05/29/00,05/30,10/11 Gerd Kortemeyer)  # 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.
 #  #
 # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer  # You should have received a copy of the GNU General Public License
 # 03/23 Guy Albertelli  # along with LON-CAPA; if not, write to the Free Software
 # 03/24,03/29 Gerd Kortemeyer)  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #  #
 # 03/31,04/03,05/09 Gerd Kortemeyer  # /home/httpd/html/adm/gpl.txt
   #
   # http://www.lon-capa.org/
   #
   ###
   
 package Apache::lonpubdir;  package Apache::lonpubdir;
   
Line 19  use Apache::File; Line 34  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::loncacc;  use Apache::loncacc;
   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 {
   
Line 27  sub handler { Line 49  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;
   
   unless (($uname,$udom)=    ($uname,$udom)=
     &Apache::loncacc::constructaccess(      &Apache::loncacc::constructaccess(
              $fn,$r->dir_config('lonDefDomain'))) {               $fn,$r->dir_config('lonDefDomain')); 
      $r->log_reason($uname.' at '.$udom.    unless (($uname) && ($udom)) {
          ' trying to publish file '.$ENV{'form.filename'}.       $r->log_reason($uname.':'.$udom.
            ' trying to list directory '.$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) { 
      $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.       $r->log_reason($env{'user.name'}.':'.$env{'user.domain'}.
          ' trying to list empty directory', $r->filename);            ' trying to list empty directory', $r->filename); 
      return HTTP_NOT_FOUND;       return HTTP_NOT_FOUND;
   }     } 
   
 # ----------------------------------------------------------- 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.
     } else {
         &pubbuttons($r,$uname,$thisdisfn);
   }    }
     &resourceactions($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>'.&mt('Directory Contents:').'</h3>');
     $r->print('<table id="LC_browser"><tr>'.
   $r->print('<table border=2>'.              '<th>'.&mt('Type').'</th>'.
             '<tr><th>Filename</th><th>Modified</th><th>Status</th></tr>');              '<th>'.&mt('Actions').'</th>'.
               '<th>'.&mt('Name').'</th>'.
               '<th>'.&mt('Title').'</th>'.
       '<th>'.&mt('Status').'</th>'.
               '<th>'.&mt('Last Modified').
       '</th></tr>'."\n");
   
   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 $filename (@files) {
      my ($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';  
                 $bgcol='#FFFFBB';  
                 if   
             (&Apache::lonnet::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {  
                    $status.='<br><a href="/adm/diff?filename='.$filename.  
        '&versionone=priv" target=cat>Diffs</a>';  
         }  
             }     
  }  
          $r->print('<tr bgcolor='.$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('</table>'.&Apache::loncommon::end_page());
   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/^https?\:\/\/[^\/]+\///;
   
           $fn=~s/^\///;
           $fn=~s{~($LONCAPA::username_re)}{/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
       $fn=~s{^/~($LONCAPA::username_re)}{/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;
   
       my $formaction='/priv/'.$uname.$thisdisfn.'/';
       $formaction=~s|/+|/|g;
       my $pagetitle .= &Apache::loncommon::help_open_menu('','',3,'Authoring').
           '<font face="Arial, Helvetica, sans-serif" size="+1"><b>'.&mt('Construction Space').'</b>:</font>&nbsp;'.
           '<form name="dirs" method="post" action="'.$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::start_page('Construction Space',undef,
    {'body_title' =>
         $pagetitle,}));
       } else {
    $r->print(&Apache::loncommon::start_page('Construction Space',undef,
    { 'only_body' => 1,}));
    $r->print($pagetitle);
       }
   
       my $esc_thisdisfn = &Apache::loncommon::escape_single($thisdisfn);
       my $doctitle = 'LON-CAPA '.&mt('Construction 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='/~$uname$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);
   
       if ((($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) &&
    $env{'environment.remote'} ne 'off') {
           $r->print('<h3>'.&mt('Co-Author [_1]',$uname.':'.$udom).'</h3>');
     '</h3>');
       }
   }
   
   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
       $r->print(<<END);
           <table id="LC_cstr_controls">
            <tr>
             <th>$lt{'acti'}</th>
             <th>$lt{'updc'}</th>
             <th>$lt{'crea'}</th>
           </tr>
           <tr>
            <td>
             <form name="curractions" method="post" action="">
              <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">$lt{'dedr'}</option>
              </select>
              <input type="hidden" name="filename" value="/~$uname$thisdisfn/" />
             </form>
             <form name="publishdir" method="post" action="/adm/publish" target="_parent">
              <input type="hidden" name="pubrec" value="" />
              <input type="hidden" name="filename" value="" />
             </form>
             <form name="printdir" method="post" action="/adm/printout" target="_parent">
              <input type="hidden" name="postdata" value="" />
             </form>
            </td>
            <td>
       <form name="upublisher" enctype="multipart/form-data" method="post" action="/adm/upload" target="_parent">
         <input type="hidden" name="filename" value="/~$uname$thisdisfn/" />
         <input type="file" name="upfile" size="20" />
         <input type="button" value="$lt{'uplo'}"  onclick="checkUpload(this.form)" />
       </form>
    </td>
    <td>
       <form name="fileaction" method="post" action="/adm/cfile" target="_parent">
         <span style="white-space: nowrap">
    <input type="hidden" name="filename" value="/~$uname$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>
    </form>
     </td>
            </tr>
           </table>
   END
   }
   
   sub pubbuttons {
       my ($r,$uname,$thisdisfn) = @_;
       $r->print('<form method="post" action="/adm/publish" target="_parent">'.
                 '<table><tr><td><input type="hidden" name="filename" value="/~'.
                  $uname.$thisdisfn.'/" />'.
                 '<input type="submit" value="'.&mt('Publish Directory').'" /></td><td>'.
   '<input type="button" onclick="window.location='."'/~".
                  $uname.$thisdisfn."/default.meta'".'" value="'.
   &mt('Edit Directory Metadata').'" /></td></tr></table></form>');
   }
   
   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)
   #      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;
    $construct=~s{^/priv/($LONCAPA::username_re)$}{/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 = &mt('Go to ...');
           } else {
               $actionitem = 
                       '<form name="dirselect_'.$$numdir.
                       '" action="/adm/publish" target="_parent">'.
                       '<select name="diraction" onchange="SetPubDir(this.form,document)">'.
                         '<option selected="selected">'.&mt('Select action').'</option>'.
                         '<option value="open">'.&mt('Open').'</option>'.
                         '<option value="publish">'.&mt('Publish').'</option>'.
                         '<option value="editmeta">'.&mt('Edit Metadata').'</option>'.
                         '<option value="printdir">'.&mt('Print directory').'</option>'.
                         '<option value="delete">'.&mt('Delete directory').'</option>'.
                       '</select>'.
                        '<input type="hidden" name="filename" value="'.&HTML::Entities::encode($dirpath.'/'.$dirname,'<>&"').'/" />'.
                        '<input type="hidden" name="openname" value="'.$here.'/'.$dirname.'/" />'.
                        '<input type="hidden" name="postdata" value="" />'.
                      '</form>';
               $$numdir ++;
           }
    $r->print('<tr class="LC_browser_folder">'.
     '<td><img src="'.
     $Apache::lonnet::perlvar{'lonIconsURL'}.'/folder_closed.gif" alt="folder" /></td>'.
     '<td>'.$actionitem.'</td>'.
     '<td><span class="LC_filename"><a href="'.&HTML::Entities::encode($here.'/'.$dirname,'<>&"').'/" target="_parent">'.
     $disfilename.'</a></span></td>'.
           '<td colspan="2">'.($kaputt?&Apache::lonhtmlcommon::authorbombs($resdir.'/'.$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='&nbsp;';
       my $publish_button=&mt('Publish');
       my $cstr_dir = '/home/'.$uname.'/public_html/'.$thisdisfn.'/';
   #    my $action_buttons=
   #        '<br /><a target="_parent" href="/adm/cfile?action=delete&filename=/~'.
   # $uname.'/'.$thisdisfn.'/'.$filename.'">'.
   # &mt('Delete').'</a>';
       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)};
   
    $title = '<a href="/res/'.$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 {
   # $action_buttons='';
   #    }
    } else {
               $pubstatus = 'modified';
       $status=&mt('Modified').
    '<br />'. $rights_status;
   #    $action_buttons='';
       if (&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {
    $status.='<br /><a href="/adm/diff?filename=/~'.$uname.
       $thisdisfn.'/'.$filename.
       '&amp;versiontwo=priv" target="cat">'.&mt('Diffs').'</a>';
       }
    } 
   
    $title.="\n".'<br /><a href="/~'.$uname.$thisdisfn.'/'.$filename.'.meta">'. 
       ($$bombs{$targetdir.'/'.$filename}?'<img src="/adm/lonMisc/bomb.gif" border="0" alt="'.&mt('bomb').'" />':&mt('Edit Metadata')).'</a>';
   
    if (!$meta_same) {
       $title = &mt('Metadata Modified').'<br />'.$title.
    '<br /><a href="/adm/diff?filename=/~'.$uname.
    $thisdisfn.'/'.$filename.'.meta'.
    '&amp;versiontwo=priv" target="cat">'.&mt('Metadata Diffs').'</a>';
       $title.="\n".'<br /><a href="/adm/retrieve?filename=/~'.$uname.
    $thisdisfn.'/'.$filename.'.meta" target="_parent">'.&mt('Retrieve Metadata').'</a>';
    }
    $status.="\n".'<br /><a href="/adm/retrieve?filename=/~'.$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=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm|sty)$/) {
    $editlink.=' (<a href="/adm/cleanup?filename=/~'.$uname.
       $thisdisfn.'/'.$filename.'" 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=/~'.
         $uname.$thisdisfn.'/'.$filename.'">'.&mt('Decompress').'</a>)';
       }
       my $pub_select = '';
       &create_pubselect($r,\$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres);
       $r->print('<tr class="LC_browser_file_'.$pubstatus.'">'.
         '<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>'.$status.'</td>'.
         '<td>'.&Apache::lonlocal::locallocaltime($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>'.
   '<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">'.$publish_button.'</option>'.
   '<option value="cleanup">'.&mt('Clean up').'</option>'.
   '<option value="print">'.&mt('Print').'</option>'.
   '</select>
   <input type="hidden" name="filename" value="/~'.
    &HTML::Entities::encode($uname.$thisdisfn.'/'.$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;
   }
   
   #
   #   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
   
   Apache::lonpubdir - Construction space directory lister
   
   =head1 SYNOPSIS
   
   Invoked (for various locations) by /etc/httpd/conf/srm.conf:
   
    <LocationMatch "^/\~.*/$">
    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)
   
       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.
   
   =item CategorizeFiles($location, $files)
       
       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.
   
   =back
   
   =cut
   
Removed from v.1.6  
changed lines
  Added in v.1.114.2.1

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