--- loncom/lonnet/perl/lonnet.pm	2001/08/04 20:13:17	1.139
+++ loncom/lonnet/perl/lonnet.pm	2001/08/12 01:18:37	1.148
@@ -122,7 +122,7 @@
 # 5/30 H. K. Ng
 # 6/1 Gerd Kortemeyer
 # July Guy Albertelli
-# 8/4 Gerd Kortemeyer
+# 8/4,8/7,8/8,8/9,8/11 Gerd Kortemeyer
 
 package Apache::lonnet;
 
@@ -896,7 +896,7 @@ sub rolesinit {
         my $author=0;
         map {
             %thesepriv=();
-            if (($_!~/^st/) && ($_!~/^ta/)) { $adv=1; }
+            if (($_!~/^st/) && ($_!~/^ta/) && ($_!~/^cm/)) { $adv=1; }
             if (($_=~/^au/) || ($_=~/^ca/)) { $author=1; }
             map {
                 if ($_ ne '') {
@@ -1108,10 +1108,22 @@ sub allowed {
            }
        }
        
-       if (($ENV{'HTTP_REFERER'}) && ($checkreferer)) {
-	  my $refuri=$ENV{'HTTP_REFERER'};
-          $refuri=~s/^http\:\/\/$ENV{'request.host'}//i;
-          $refuri=&declutter($refuri);
+       if ($checkreferer) {
+	  my $refuri=$ENV{'httpref.'.$uri};
+
+            unless ($refuri) {
+                map {
+		    if ($_=~/^httpref\..*\*/) {
+			my $pattern=$_;
+                        $pattern=~s/\*/\[\^\/\]\+/g;
+                        $pattern=~s/\//\\\//g;
+                        if ($uri=~/$pattern/) {
+			    $refuri=$ENV{$_};
+                        }
+                    }
+                } keys %ENV;
+            }
+         if ($refuri) { 
           my @uriparts=split(/\//,$refuri);
           my $filename=$uriparts[$#uriparts];
           my $pathname=$refuri;
@@ -1129,6 +1141,7 @@ sub allowed {
               }
             }
           }
+        }
        }
    }
 
@@ -1674,7 +1687,7 @@ sub condval {
 # --------------------------------------------------------- Value of a Variable
 
 sub EXT {
-    my $varname=shift;
+    my ($varname,$symbparm)=@_;
     unless ($varname) { return ''; }
     my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
     my $rest;
@@ -1735,8 +1748,17 @@ sub EXT {
                               $spacequalifierrest};
     } elsif ($realm eq 'resource') {
        if ($ENV{'request.course.id'}) {
+
+#	   print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
+
+
 # ----------------------------------------------------- Cascading lookup scheme
-         my $symbp=&symbread();
+         my $symbp;
+         if ($symbparm) {
+            $symbp=$symbparm;
+	 } else {
+            $symbp=&symbread();
+         }            
          my $mapp=(split(/\_\_\_/,$symbp))[0];
 
          my $symbparm=$symbp.'.'.$spacequalifierrest;
@@ -1824,6 +1846,21 @@ sub EXT {
                                          'parameter_'.$spacequalifierrest);
       if ($metadata) { return $metadata; }
 
+# ------------------------------------------------------------------ Cascade up
+
+      unless ($space eq '0') {
+          my ($part,$id)=split(/\_/,$space);
+          if ($id) {
+	      my $partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
+                                   $symbparm);
+              if ($partgeneral) { return $partgeneral; }
+          } else {
+              my $resourcegeneral=&EXT('resource.0.'.$qualifierrest,
+                                       $symbparm);
+              if ($resourcegeneral) { return $resourcegeneral; }
+          }
+      }
+
 # ---------------------------------------------------- Any other user namespace
     } elsif ($realm eq 'environment') {
 # ----------------------------------------------------------------- environment
@@ -1846,15 +1883,16 @@ sub metadata {
     my $filename=$uri;
     $uri=~s/\.meta$//;
     unless ($metacache{$uri.':keys'}) {
+        my %metathesekeys=();
         unless ($filename=~/\.meta$/) { $filename.='.meta'; }
 	my $metastring=&getfile($perlvar{'lonDocRoot'}.'/res/'.$filename);
         my $parser=HTML::TokeParser->new(\$metastring);
         my $token;
+        undef %metathesekeys;
         while ($token=$parser->get_token) {
            if ($token->[0] eq 'S') {
 	     if (defined($token->[2]->{'package'})) {
 	      my $package=$token->[2]->{'package'};
-              my %thispackagekeys=();
 	      my $keyroot='';
               if (defined($token->[2]->{'part'})) { 
                  $keyroot.='_'.$token->[2]->{'part'}; 
@@ -1867,27 +1905,24 @@ sub metadata {
               } else {
                  $metacache{$uri.':packages'}=$package.$keyroot;
 	      }
-              undef %thispackagekeys;
               map {
 		  if ($_=~/^$package\&/) {
 		      my ($pack,$name,$subp)=split(/\&/,$_);
                       my $value=$packagetab{$_};
+		      my $part=$keyroot;
+                      $part=~s/^\_//;
                       if ($subp eq 'display') {
-			  my $part=$keyroot;
-                          $part=~s/^\_//;
 			  $value.=' [Part: '.$part.']';
                       }
                       my $unikey='parameter'.$keyroot.'_'.$name;
-                      $thispackagekeys{$unikey}=1;
-                      $metacache{$uri.':'.$unikey.'.'.$subp}=$value;
+                      $metathesekeys{$unikey}=1;
+                      $metacache{$uri.':'.$unikey.'.part'}=$part;
+                      unless 
+                       (defined($metacache{$uri.':'.$unikey.'.'.$subp})) {
+                         $metacache{$uri.':'.$unikey.'.'.$subp}=$value;
+		      }
                   }
               } keys %packagetab;
-              my $addpackagekeys=join(',',keys %thispackagekeys);
-              if ($metacache{$uri.':keys'}) {
-                 $metacache{$uri.':keys'}.=','.$addpackagekeys;
-              } else {
-                 $metacache{$uri.':keys'}=$addpackagekeys;
-	      }
              } else {
 	      my $entry=$token->[1];
               my $unikey=$entry;
@@ -1900,11 +1935,7 @@ sub metadata {
               if (defined($token->[2]->{'name'})) { 
                  $unikey.='_'.$token->[2]->{'name'}; 
 	      }
-              if ($metacache{$uri.':keys'}) {
-                 $metacache{$uri.':keys'}.=','.$unikey;
-              } else {
-                 $metacache{$uri.':keys'}=$unikey;
-	      }
+              $metathesekeys{$unikey}=1;
               map {
 		  $metacache{$uri.':'.$unikey.'.'.$_}=$token->[2]->{$_};
               } @{$token->[3]};
@@ -1914,8 +1945,9 @@ sub metadata {
 			      $metacache{$uri.':'.$unikey.'.default'};
 		      }
 	    }
-	  }
+	 }
        }
+       $metacache{$uri.':keys'}=join(',',keys %metathesekeys);
     }
     return $metacache{$uri.':'.$what};
 }
@@ -2203,7 +2235,11 @@ if ($readit ne 'done') {
     while (my $configline=<$config>) {
        chomp($configline);
        my ($short,$plain)=split(/:/,$configline);
-       if ($plain ne '') { $packagetab{$short}=$plain; }
+       my ($pack,$name)=split(/\&/,$short);
+       if ($plain ne '') {
+          $packagetab{$pack.'&'.$name.'&name'}=$name; 
+          $packagetab{$short}=$plain; 
+       }
     }
 }