--- loncom/lonnet/perl/lonnet.pm	2002/08/23 13:21:36	1.272
+++ loncom/lonnet/perl/lonnet.pm	2002/08/28 21:50:27	1.275
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.272 2002/08/23 13:21:36 matthew Exp $
+# $Id: lonnet.pm,v 1.275 2002/08/28 21:50:27 stredwic Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1569,6 +1569,9 @@ sub get {
 
    my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
    my @pairs=split(/\&/,$rep);
+   if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
+     return @pairs;
+   }
    my %returnhash=();
    my $i=0;
    foreach (@$storearr) {
@@ -2455,6 +2458,30 @@ sub dirlist {
     }
 }
 
+# --------------------------------------------- GetFileTimestamp
+# This function utilizes dirlist and returns the date stamp for
+# when it was last modified.  It will also return an error of -1
+# if an error occurs
+
+sub GetFileTimestamp {
+    my ($studentDomain,$studentName,$filename,$root)=@_;
+    $studentDomain=~s/\W//g;
+    $studentName=~s/\W//g;
+    my $subdir=$studentName.'__';
+    $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
+    my $proname="$studentDomain/$subdir/$studentName";
+    $proname .= '/'.$filename;
+    my @dir = &Apache::lonnet::dirlist($proname, $studentDomain, $studentName,
+                                       $root);
+    my $fileStat = $dir[0];
+    my @stats = split('&', $fileStat);
+    if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
+        return $stats[9];
+    } else {
+        return -1;
+    }
+}
+
 # -------------------------------------------------------- Value of a Condition
 
 sub directcondval {
@@ -2858,8 +2885,9 @@ sub metadata {
 # the next is the end of "start tag"
 	 }
        }
-	&metadata_generate_part0(\%metathesekeys,\%metacache,$uri);
        $metacache{$uri.':keys'}=join(',',keys %metathesekeys);
+	&metadata_generate_part0(\%metathesekeys,\%metacache,$uri);
+       $metacache{$uri.':allpossiblekeys'}=join(',',keys %metathesekeys);
        $metacache{$uri.':cachedtimestamp'}=time;
 # this is the end of "was not already recently cached
     }