--- loncom/publisher/lonpubdir.pm	2001/07/13 12:56:12	1.11
+++ loncom/publisher/lonpubdir.pm	2002/02/05 22:25:00	1.22
@@ -1,16 +1,45 @@
 # The LearningOnline Network with CAPA
-#
 # (Publication Handler
+#
+# $Id: lonpubdir.pm,v 1.22 2002/02/05 22:25:00 foxr Exp $
+#
+# 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.
+#
+# 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/
+#
 # 
 # (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
+# 12/28 Gerd Kortemeyer
 #
-# 03/31,04/03,05/09,06/23 Gerd Kortemeyer
+###
 
 package Apache::lonpubdir;
 
@@ -19,8 +48,7 @@ use Apache::File;
 use File::Copy;
 use Apache::Constants qw(:common :http :methods);
 use Apache::loncacc;
-use Apache::lonnet;
-
+use Apache::loncommon();
 
 sub handler {
 
@@ -75,18 +103,20 @@ sub handler {
   $r->print('<h1>Construction Space Directory <tt>'.$thisdisfn.'/</tt></h1>');
   
   if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
-          $r->print('<h3><font color=red>Co-Author: '.$uname.' at '.$udom.
-               '</font></h3>');
+          $r->print('<h3>Co-Author: '.$uname.' at '.$udom.
+               '</h3>');
   }
 
 
   my $docroot=$r->dir_config('lonDocRoot');
 
   my $resdir=$docroot.'/res/'.$udom.'/'.$uname.$thisdisfn;
+  my $targetdir=$udom.'/'.$uname.$thisdisfn;
   my $linkdir='/~'.$uname.$thisdisfn;
 
   $r->print('<table border=2>'.
-            '<tr><th>Filename</th><th>Modified</th><th>Status</th></tr>');
+ '<tr><th>Actions</th><th>Name</th><th>Title</th>'.
+ '<th>Status</th><th>Last Modified</th></tr>');
 
   my $filename;
   my $dirptr=16384;
@@ -98,47 +128,16 @@ sub handler {
          $cuid,$cgid,$crdev,$csize,
          $catime,$cmtime,$cctime,
          $cblksize,$cblocks)=stat($fn.'/'.$filename);
+
      my $extension='';
      if ($filename=~/\.(\w+)$/) { $extension=$1; }
-     if (($extension ne 'meta') && (&Apache::lonnet::fileembstyle($extension))) {
-         my $status='Unpublished';
-         my $bgcol='#FFBBBB';
-         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';
-                $bgcol='#FFFFBB';
-                if 
-            (&Apache::lonnet::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {
-                   $status.='<br><a href="/adm/diff?filename=/~'.$uname.
-                                         '/'.$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($cmtime).'</td><td>&nbsp;</td></tr>');
-         }
+     if ($cmode&$dirptr) {
+	 putdirectory($r, $thisdisfn, $linkdir, $filename, $cmtime);
+     } elsif (&Apache::loncommon::fileembstyle($extension) ne 'hdn') {
+	 putresource($r, $uname, $filename, $thisdisfn, $resdir, 
+		     $targetdir, $linkdir, $cmtime);
      } else {
-       #no extension that we know of and not a directory
-       #just hide it away
+	# "hidden" extension and not a directory, so hide it away.
      }
   }
   closedir(DIR);
@@ -146,6 +145,139 @@ sub handler {
   $r->print('</table></body></html>');
   return OK;  
 }
+#
+#  Put out a directory table row:
+#    putdirectory(r, base, here, dirname, modtime)
+#      r       - Apache request object.
+#      reqfile - File in request.
+#      here    - Where we are in directory tree.
+#      dirname - Name of directory special file.
+#      modtime - Encoded modification time.
+# 
+sub putdirectory {
+    my ($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 '.')) {
+	$r->print('<tr>'.
+		  '<td>Click to cwd</td>'.
+		  '<td><a href="'.$here.'/'.$dirname.'/">'.
+		  $disfilename.'</a></td>'.
+		        '<td>&nbsp;</td>'.
+		  '<td>&nbsp;</td>'.
+		  '<td>'.localtime($modtime).'</td>'.
+		  '</tr>');
+    }	
+    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 $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';
+	    $title='<a href="/res/'.$targetdir.'/'.$filename.'.meta" target=cat>'.
+		&Apache::lonnet::metadata($targetdir.'/'.$filename,'title').'</a>';
+	} else {
+	    $status='Modified';
+	    $title='<a href="/res/'.$targetdir.'/'.$filename.'.meta" target=cat>'.
+		&Apache::lonnet::metadata($targetdir.'/'.$filename,'title').'</a>';
+	    if (&Apache::loncommon::fileembstyle(($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>'.
+	      '<td><a target="_parent" href="/adm/publish?filename=/~'.
+	      $uname.$thisdisfn.'/'.$filename.'">'.'Publish</a>'.
+	      '</td>'.
+	      '<td>'.
+	      '<a href="'.$linkdir.'/'.$filename.'">'.$filename.'</a>'.
+	      '</td>'.
+	      '<td>'.$title.'</td>'.
+	      '<td>'.$status.'</td>'.
+	      '<td>'.localtime($cmtime).'</td>'.
+	      '</tr>');
+    return OK;
+}
 
 1;
 __END__
+
+=head1 NAME
+
+Apache::lonpubdir - Publication Handler for Directories
+
+=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
+
+=cut