--- loncom/lonnet/perl/lonnet.pm	2003/07/25 01:18:04	1.394
+++ loncom/lonnet/perl/lonnet.pm	2003/08/13 18:45:02	1.400
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.394 2003/07/25 01:18:04 bowersj2 Exp $
+# $Id: lonnet.pm,v 1.400 2003/08/13 18:45:02 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1284,6 +1284,53 @@ sub get_course_adv_roles {
     return %returnhash;
 }
 
+sub get_my_roles {
+    my ($uname,$udom)=@_;
+    unless (defined($uname)) { $uname=$ENV{'user.name'}; }
+    unless (defined($udom)) { $udom=$ENV{'user.domain'}; }
+    my %dumphash=
+            &dump('nohist_userroles',$udom,$uname);
+    my %returnhash=();
+    my $now=time;
+    foreach (keys %dumphash) {
+	my ($tend,$tstart)=split(/\:/,$dumphash{$_});
+        if (($tstart) && ($tstart<0)) { next; }
+        if (($tend) && ($tend<$now)) { next; }
+        if (($tstart) && ($now<$tstart)) { next; }
+        my ($role,$username,$domain,$section)=split(/\:/,$_);
+	$returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
+     }
+    return %returnhash;
+}
+
+# ----------------------------------------------------- Frontpage Announcements
+#
+#
+
+sub postannounce {
+    my ($server,$text)=@_;
+    unless (&allowed('psa',$hostdom{$server})) { return 'refused'; }
+    unless ($text=~/\w/) { $text=''; }
+    return &reply('setannounce:'.&escape($text),$server);
+}
+
+sub getannounce {
+    if (my $fh=Apache::File->new($perlvar{'lonDocRoot'}.'/announcement.txt')) {
+	my $announcement='';
+	while (<$fh>) { $announcement .=$_; }
+	$fh->close();
+	if ($announcement=~/\w/) { 
+	    return 
+   '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
+   '<tr><td bgcolor="#FFFFFF"><pre>'.$announcement.'</pre></td></tr></table>'; 
+	} else {
+	    return '';
+	}
+    } else {
+	return '';
+    }
+}
+
 # ---------------------------------------------------------- Course ID routines
 # Deal with domain's nohist_courseid.db files
 #
@@ -2221,6 +2268,7 @@ sub allowed {
     my $orguri=$uri;
     $uri=&declutter($uri);
 
+    if (defined($ENV{'allowed.'.$priv})) { return $ENV{'allowed.'.$priv}; }
 # Free bre access to adm and meta resources
 
     if ((($uri=~/^adm\//) || ($uri=~/\.meta$/)) && ($priv eq 'bre')) {
@@ -3070,7 +3118,7 @@ sub dirlist {
         }
         my $alldomstr='';
         foreach (sort keys %alldom) {
-            $alldomstr.=$perlvar{'lonDocRoot'}.'/res/'.$_.'&domain:';
+            $alldomstr.=$perlvar{'lonDocRoot'}.'/res/'.$_.'/&domain:';
         }
         $alldomstr=~s/:$//;
         return split(/:/,$alldomstr);       
@@ -3222,7 +3270,7 @@ sub EXT_cache_set {
 
 # --------------------------------------------------------- Value of a Variable
 sub EXT {
-    my ($varname,$symbparm,$udom,$uname,$usection)=@_;
+    my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
 
     unless ($varname) { return ''; }
     #get real user name/domain, courseid and symb
@@ -3323,6 +3371,7 @@ sub EXT {
         return $ENV{'course.'.$courseid.'.'.$spacequalifierrest};
     } elsif ($realm eq 'resource') {
 
+	my $section;
 	if (defined($courseid) && $courseid eq $ENV{'request.course.id'}) {
 
 	    #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
@@ -3335,7 +3384,6 @@ sub EXT {
 	    my $symbparm=$symbp.'.'.$spacequalifierrest;
 	    my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
 
-	    my $section;
 	    if (($ENV{'user.name'} eq $uname) &&
 		($ENV{'user.domain'} eq $udom)) {
 		$section=$ENV{'request.course.sec'};
@@ -3426,9 +3474,12 @@ sub EXT {
 	    my $part=join('_',@parts);
 	    if ($part eq '') { $part='0'; }
 	    my $partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
-				 $symbparm,$udom,$uname);
+				 $symbparm,$udom,$uname,$section,1);
 	    if (defined($partgeneral)) { return $partgeneral; }
 	}
+	if ($recurse) { return undef; }
+	my $pack_def=&packages_tab_default($filename,$varname);
+	if (defined($pack_def)) { return $pack_def; }
 
 # ---------------------------------------------------- Any other user namespace
     } elsif ($realm eq 'environment') {
@@ -3449,6 +3500,19 @@ sub EXT {
     return '';
 }
 
+sub packages_tab_default {
+    my ($uri,$varname)=@_;
+    my (undef,$part,$name)=split(/\./,$varname);
+    my $packages=&metadata($uri,'packages');
+    foreach my $package (split(/,/,$packages)) {
+	my ($pack_type,$pack_part)=split(/_/,$package,2);
+	if ($pack_part eq $part) {
+	    return $packagetab{"$pack_type&$name&default"};
+	}
+    }
+    return undef;
+}
+
 sub add_prefix_and_part {
     my ($prefix,$part)=@_;
     my $keyroot;
@@ -3517,6 +3581,9 @@ sub metadata {
 		    foreach (keys %packagetab) {
 			if ($_=~/^$package\&/) {
 			    my ($pack,$name,$subp)=split(/\&/,$_);
+			    # ignore package.tab specified default values
+                            # here &package_tab_default() will fetch those
+			    if ($subp eq 'default') { next; }
 			    my $value=$packagetab{$_};
 			    my $part=$keyroot;
 			    $part=~s/^\_//;
@@ -3524,13 +3591,8 @@ sub metadata {
 				$value.=' [Part: '.$part.']';
 			    }
 			    my $unikey='parameter'.$keyroot.'_'.$name;
-			    if ($subp eq 'default') {
-				$unikey='parameter_0_'.$name;
-				$metacache{$uri.':'.$unikey.'.part'}='0';
-			    } else {
-				$metacache{$uri.':'.$unikey.'.part'}=$part;
-				$metathesekeys{$unikey}=1;
-			    }
+			    $metacache{$uri.':'.$unikey.'.part'}=$part;
+			    $metathesekeys{$unikey}=1;
 			    unless (defined($metacache{$uri.':'.$unikey.'.'.$subp})) {
 				$metacache{$uri.':'.$unikey.'.'.$subp}=$value;
 			    }