--- loncom/lonnet/perl/lonnet.pm	2011/10/17 12:41:39	1.1136
+++ loncom/lonnet/perl/lonnet.pm	2011/10/21 16:14:02	1.1139
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.1136 2011/10/17 12:41:39 raeburn Exp $
+# $Id: lonnet.pm,v 1.1139 2011/10/21 16:14:02 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -76,7 +76,8 @@ use HTTP::Date;
 use Image::Magick;
 
 use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
-            $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease);
+            $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
+            %managerstab);
 
 my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
     %userrolehash, $processmarker, $dumpcount, %coursedombuf,
@@ -10214,13 +10215,7 @@ sub filelocation {
 	$file=~s-^/adm/coursedocs/showdoc/-/-;
     }
 
-    if ($file=~m:^/~:) { # is a contruction space reference
-        $location = $file;
-        $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
-    } elsif ($file=~m{^/home/$match_username/public_html/}) {
-	# is a correct contruction space reference
-        $location = $file;
-    } elsif ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
+    if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
         $location = $file;
     } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
         my ($udom,$uname,$filename)=
@@ -10239,11 +10234,12 @@ sub filelocation {
 	$location = $perlvar{'lonDocRoot'}.'/'.$file;
     } else {
         $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
-        $file=~s:^/res/:/:;
+        $file=~s:^/(res|priv)/:/:;
+        my $space=$1;
         if ( !( $file =~ m:^/:) ) {
             $location = $dir. '/'.$file;
         } else {
-            $location = '/home/httpd/html/res'.$file;
+            $location = '/home/httpd/html/'.$space.$file;
         }
     }
     $location=~s://+:/:g; # remove duplicate /
@@ -10268,8 +10264,6 @@ sub hreflocation {
     }
     if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
 	$file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
-    } elsif ($file=~m-/home/($match_username)/public_html/-) {
-	$file=~s-^/home/($match_username)/public_html/-/~$1/-;
     } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
 	$file=~s-^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/
 	    -/uploaded/$1/$2/-x;
@@ -10280,6 +10274,10 @@ sub hreflocation {
     return $file;
 }
 
+
+
+
+
 sub current_machine_domains {
     return &machine_domains(&hostname($perlvar{'lonHostID'}));
 }
@@ -10984,6 +10982,22 @@ BEGIN {
     }
 }
 
+# ---------------------------------------------------------- Read managers table
+{
+    if (-e "$perlvar{'lonTabDir'}/managers.tab") {
+        if (open(my $config,"<$perlvar{'lonTabDir'}/managers.tab")) {
+            while (my $configline=<$config>) {
+                chomp($configline);
+                next if ($configline =~ /^\#/);
+                if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) {
+                    $managerstab{$configline} = 1;
+                }
+            }
+            close($config);
+        }
+    }
+}
+
 # ------------- set up temporary directory
 {
     $tmpdir = LONCAPA::tempdir();
@@ -11836,7 +11850,82 @@ or lonTabs/domain.tab.
 
 =item *
 
-dirlist($uri) : return directory list based on URI
+dirlist() : return directory list based on URI (first arg).
+
+Inputs: 1 required, 5 optional.
+
+=over
+
+=item 
+$uri - path to file in filesystem (starts: /res or /userfiles/). Required.
+
+=item
+$userdomain - domain of user/course to be listed. Extracted from $uri if absent. 
+
+=item
+$username -  username of user/course to be listed. Extracted from $uri if absent. 
+
+=item
+$getpropath - boolean: 1 if prepend path using &propath(). 
+
+=item
+$getuserdir - boolean: 1 if prepend path for "userfiles".
+
+=item 
+$alternateRoot - path to prepend in place of path from $uri.
+
+=back
+
+Returns: Array of up to two items.
+
+=over
+
+a reference to an array of files/subdirectories
+
+=over
+
+Each element in the array of files/subdirectories is a & separated list of
+item name and the result of running stat on the item.  If dirlist was requested
+for a file instead of a directory, the item name will be ''. For a directory 
+listing, if the item is a metadata file, the element will end &N&M 
+(where N amd M are either 0 or 1, corresponding to obsolete set (1), or
+default copyright set (1).  
+
+=back
+
+a scalar containing error condition (if encountered).
+
+=over
+
+=item 
+no_host (no homeserver identified for $username:$domain).
+
+=item 
+no_such_host (server contacted for listing not identified as valid host).
+
+=item 
+con_lost (connection to remote server failed).
+
+=item 
+refused (invalid $username:$domain received on lond side).
+
+=item 
+no_such_dir (directory at specified path on lond side does not exist). 
+
+=item 
+empty (directory at specified path on lond side is empty).
+
+=over
+
+This is currently not encountered because the &ls3, &ls2, 
+&ls (_handler) routines on the lond side do not filter out
+. and .. from a directory listing. 
+
+=back
+
+=back
+
+=back
 
 =item *