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Diff for /loncom/publisher/lonpubdir.pm between versions 1.17 and 1.36

version 1.17, 2001/12/15 20:48:47 version 1.36, 2003/07/17 13:50:44
Line 1 Line 1
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
 # (Publication Handler  # Construction Space Directory Lister
 #  #
 # $Id$  # $Id$
 #  #
Line 36 Line 36
 # 03/23 Guy Albertelli  # 03/23 Guy Albertelli
 # 03/24,03/29 Gerd Kortemeyer)  # 03/24,03/29 Gerd Kortemeyer)
 # 03/31,04/03,05/09,06/23,08/18,08/20 Gerd Kortemeyer  # 03/31,04/03,05/09,06/23,08/18,08/20 Gerd Kortemeyer
 # 12/15 Scott Harrison  # 12/28 Gerd Kortemeyer
 #  #
 ###  ###
   
Line 55  sub handler { Line 55  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 69  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 87  sub handler {
   
 # ----------------------------------------------------------- Start page output  # ----------------------------------------------------------- Start page output
   
     my $thisdisfn=$fn;
     $thisdisfn=~s/^\/home\/$uname\/public_html//; # subdirectory part of
                                                   # construction space. 
     my $docroot=$r->dir_config('lonDocRoot');     # Apache  londocument root.
   
   $r->content_type('text/html');    my $resdir=$docroot.'/res/'.$udom.'/'.$uname.$thisdisfn; # Resource directory
   $r->send_http_header;    my $targetdir=$udom.'/'.$uname.$thisdisfn; # Publiction target directory.
     my $linkdir='/priv/'.$uname.$thisdisfn;      # Full URL name of constr space.
   
   $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;    &startpage($r, $uname, $udom, $thisdisfn);   # Put out the start of page.
   $thisdisfn=~s/^\/home\/$uname\/public_html//;  
       
   $r->print('<h1>Construction Space Directory <tt>'.$thisdisfn.'/</tt></h1>');    # Start off the diretory table.
     
   if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {  
           $r->print('<h3><font color=red>Co-Author: '.$uname.' at '.$udom.  
                '</font></h3>');  
   }  
   
   
   my $docroot=$r->dir_config('lonDocRoot');  
   
   my $resdir=$docroot.'/res/'.$udom.'/'.$uname.$thisdisfn;  
   my $linkdir='/~'.$uname.$thisdisfn;  
   
   $r->print('<table border=2>'.    $r->print('<table border=2>'.
  '<tr><th>Filename</th><th>Modified</th><th>Status</th><th>&nbsp;</th></tr>');      '<tr><th>Actions</th><th>Name</th><th>Title</th>'.
       '<th>Status</th><th>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(readdir(DIR));
Line 129  sub handler { Line 120  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, $cmtime);
          if ($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, $uname, $filename, $thisdisfn, $resdir, 
          my $bgcol='#FFBBBB';       $targetdir, $linkdir, $cmtime);
          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 133  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|;
    }
       }
       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) = @_;
       
       $r->content_type('text/html');
       $r->send_http_header;
       
       $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
       
       $r->print(&Apache::loncommon::bodytag(undef,undef,undef,1));
       my $pubdirscript=(<<ENDPUBDIRSCRIPT);
   <script>
       function pubdir(theform) {
    if (confirm('Publish complete directory?')) {
       theform.submit();
           }
       }
      function pubrecdir(theform) {
    if (confirm('Publish directory and all subdirectories?')) {
               theform.pubrec.value='1';
       theform.submit();
           }
       }
   </script>
   ENDPUBDIRSCRIPT
   
       $r->print('<h1>Construction Space Directory <tt>'.
         $thisdisfn.'/</tt></h1>'.
         '<script type="text/javascript">top.document.title = \''.
         $thisdisfn.'/ - LON-CAPA Construction Space\';</script>'.
         $pubdirscript.
                 '<form method="post" action="/adm/publish" target="_parent">'.
                 '<table><tr><td><input type="hidden" name="filename" value="/~'.
                  $uname.$thisdisfn.'/" />'.
                 '<input type="button" onClick="pubdir(this.form);" value="Publish Directory" />'.
                 '<input type="hidden" name="pubrec" value="" />'.
                 '<input type="button" onClick="pubrecdir(this.form);" value="Publish Directory and Sub Directories" /></td><td>'.
   '<input type="button" onClick="window.location='."'/~".
                  $uname.$thisdisfn."/default.meta'".'" value="Edit Directory Catalog Information" /></td></tr><tr><td><input type="checkbox" name="forcerepub" /> Force publication of unmodified files.</td><td>&nbsp;</td></tr></table></form>');
       
       if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
    $r->print('<h3>Co-Author: '.$uname.' at '.$udom.
     '</h3>');
       }
   }
   
   #
   #   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 = "[untitled]";
       }
       return $title;
   }
   
   
   #
   #  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) = @_;
     
       # construct the display filename: the directory name unless ..:
       
       my $disfilename = $dirname;
       if ($dirname eq '..') {
    $disfilename = '<i>Parent Directory</i>';
       }
       unless (( ($dirname eq '..') && ($reqfile eq '')) ||
       ($dirname eq '.')) {
    $r->print('<tr bgcolor="#CCCCFF">'.
     '<td>Go to ...</td>'.
     '<td><a href="'.$here.'/'.$dirname.'/" target="_top">'.
     $disfilename.'</a></td>'.
           '<td>&nbsp;</td>'.
     '<td>&nbsp;</td>'.
     '<td>'.localtime($modtime).'</td>'.
     "</tr>\n");
       }
       return OK;
   }
   #
   #   Put a table row for a file resource.
   #
   sub putresource {
       my ($r, $uname, $filename, $thisdisfn, 
    $resdir, $targetdir, $linkdir,
    $cmtime) = @_;
   
       my $status='Unpublished';
       my $bgcolor='#FFCCCC';
       my $title='&nbsp;';
       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';
               $bgcolor='#CCFFCC';
       $title='<a href="/res/'.$targetdir.'/'.$filename.
    '.meta" target=cat>'.
    getTitleString($targetdir.'/'.$filename, 'title').'</a>';
    } else {
       $status='Modified';
               $bgcolor='#FFFFCC';
       $title='<a href="/res/'.$targetdir.'/'.$filename.'.meta" target=cat>'.
    getTitleString($targetdir.'/'.$filename,'title').'</a>';
       if (&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {
    $status.='<br><a href="/adm/diff?filename=/~'.$uname.
       $thisdisfn.'/'.$filename.
       '&versiontwo=priv" target=cat>Diffs</a>';
       }
    }   
    $status.='<br><a href="/adm/retrieve?filename=/~'.$uname.
       $thisdisfn.'/'.$filename.'" target=cat>Retrieve</a>';
       }
       my $editlink='';
       if ($filename=~/\.(xml|html|htm|xhtml|xhtm|sty)$/) {
    $editlink=' (<a href="'.$linkdir.'/'.$filename.'?forceedit=1" target="_top">Edit</a>)';
       }
       if ($filename=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
    $editlink=' (<a href="'.$linkdir.'/'.$filename.'?forceedit=1" target="_top">EditXML</a>)';
       }
       $r->print('<tr bgcolor="'.$bgcolor.'">'.
         '<td><a target="_parent" href="/adm/publish?filename=/~'.
         $uname.$thisdisfn.'/'.$filename.'">'.'Publish</a>'.
         '</td>'.
         '<td>'.
         '<a href="'.$linkdir.'/'.$filename.'" target="_top">'.
                  $filename.'</a>'.$editlink.
         '</td>'.
         '<td>'.$title.'</td>'.
         '<td>'.$status.'</td>'.
         '<td>'.localtime($cmtime).'</td>'.
         "</tr>\n");
       return OK;
   }
   #
   #   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.1.36

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