--- loncom/lonnet/perl/lonnet.pm	2013/05/15 19:49:25	1.1172.2.24
+++ loncom/lonnet/perl/lonnet.pm	2013/12/05 05:19:18	1.1244
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.1172.2.24 2013/05/15 19:49:25 raeburn Exp $
+# $Id: lonnet.pm,v 1.1244 2013/12/05 05:19:18 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -75,6 +75,9 @@ use LWP::UserAgent();
 use HTTP::Date;
 use Image::Magick;
 
+
+use Encode;
+
 use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir $apache
             $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
             %managerstab);
@@ -109,6 +112,7 @@ require Exporter;
 our @ISA = qw (Exporter);
 our @EXPORT = qw(%env);
 
+
 # ------------------------------------ Logging (parameters, docs, slots, roles)
 {
     my $logid;
@@ -123,19 +127,19 @@ our @EXPORT = qw(%env);
 	$logid ++;
         my $now = time();
 	my $id=$now.'00000'.$$.'00000'.$logid;
-        my $logentry = {
-                         $id => {
-                                  'exe_uname' => $env{'user.name'},
-                                  'exe_udom'  => $env{'user.domain'},
-                                  'exe_time'  => $now,
-                                  'exe_ip'    => $ENV{'REMOTE_ADDR'},
-                                  'delflag'   => $delflag,
-                                  'logentry'  => $storehash,
-                                  'uname'     => $uname,
-                                  'udom'      => $udom,
-                                }
+        my $logentry = { 
+                          $id => {
+                                   'exe_uname' => $env{'user.name'},
+                                   'exe_udom'  => $env{'user.domain'},
+                                   'exe_time'  => $now,
+                                   'exe_ip'    => $ENV{'REMOTE_ADDR'},
+                                   'delflag'   => $delflag,
+                                   'logentry'  => $storehash,
+                                   'uname'     => $uname,
+                                   'udom'      => $udom,
+                                  }
                        };
-        return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
+	return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
     }
 }
 
@@ -352,8 +356,11 @@ sub get_remote_globals {
 }
 
 sub remote_devalidate_cache {
-    my ($lonhost,$name,$id) = @_;
-    my $response = &reply('devalidatecache:'.&escape($name).':'.&escape($id),$lonhost);
+    my ($lonhost,$cachekeys) = @_;
+    my $items;
+    return unless (ref($cachekeys) eq 'ARRAY');
+    my $cachestr = join('&',@{$cachekeys});
+    my $response = &reply('devalidatecache:'.&escape($cachestr),$lonhost);
     return $response;
 }
 
@@ -599,7 +606,7 @@ sub transfer_profile_to_env {
 
 # ---------------------------------------------------- Check for valid session 
 sub check_for_valid_session {
-    my ($r,$name) = @_;
+    my ($r,$name,$userref) = @_;
     my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
     if ($name eq '') {
         $name = 'lonID';
@@ -630,15 +637,18 @@ sub check_for_valid_session {
 	|| !defined($disk_env{'user.domain'})) {
 	return undef;
     }
-
-    if (($r->user() eq '') && ($apache >= 2.4)) {
-        if ($disk_env{'user.domain'} eq $r->dir_config('lonDefDomain')) {
-            $r->user($disk_env{'user.name'});
-        } else {
-            $r->user($disk_env{'user.name'}.':'.$disk_env{'user.domain'});
+    if ($apache >= 2.4) {
+        if ($r->user() eq '') {
+            if ($disk_env{'user.domain'} eq $r->dir_config('lonDefDomain')) {
+                $r->user($disk_env{'user.name'});
+            } else {
+                $r->user($disk_env{'user.name'}.':'.$disk_env{'user.domain'});
+            }
+        }
+        if (($r->user() ne '') && (ref($userref))) {
+            $$userref = $r->user();
         }
     }
-
     return $handle;
 }
 
@@ -1271,7 +1281,7 @@ sub check_loadbalancing {
         }
     }
     if (ref($result) eq 'HASH') {
-        ($is_balancer,$currtargets,$currrules) =
+        ($is_balancer,$currtargets,$currrules) = 
             &check_balancer_result($result,@hosts);
         if ($is_balancer) {
             if (ref($currrules) eq 'HASH') {
@@ -1321,7 +1331,7 @@ sub check_loadbalancing {
             }
         }
     } elsif (($homeintdom) && ($udom ne $serverhomedom)) {
-        my ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
+        ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
         unless (defined($cached)) {
             my %domconfig =
                 &Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);
@@ -1330,7 +1340,7 @@ sub check_loadbalancing {
             }
         }
         if (ref($result) eq 'HASH') {
-            ($is_balancer,$currtargets,$currrules) =
+            ($is_balancer,$currtargets,$currrules) = 
                 &check_balancer_result($result,@hosts);
             if ($is_balancer) {
                 if (ref($currrules) eq 'HASH') {
@@ -1386,8 +1396,8 @@ sub check_loadbalancing {
             $is_balancer = 0;
             if ($uname ne '' && $udom ne '') {
                 if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
-
-                    &appenv({'user.loadbalexempt'     => $lonhost,
+                    
+                    &appenv({'user.loadbalexempt'     => $lonhost,  
                              'user.loadbalcheck.time' => time});
                 }
             }
@@ -1576,6 +1586,36 @@ sub idput {
     }
 }
 
+# ---------------------------------------- Delete unwanted IDs from ids.db file 
+
+sub iddel {
+    my ($udom,$idshashref,$uhome)=@_;
+    my %result=();
+    unless (ref($idshashref) eq 'HASH') {
+        return %result;
+    }
+    my %servers=();
+    while (my ($id,$uname) = each(%{$idshashref})) {
+        my $uhom;
+        if ($uhome) {
+            $uhom = $uhome;
+        } else {
+            $uhom=&homeserver($uname,$udom);
+        }
+        if ($uhom ne 'no_host') {
+            if ($servers{$uhom}) {
+                $servers{$uhom}.='&'.&escape($id);
+            } else {
+                $servers{$uhom}=&escape($id);
+            }
+        }
+    }
+    foreach my $server (keys(%servers)) {
+        $result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome);
+    }
+    return %result;
+}
+
 # ------------------------------dump from db file owned by domainconfig user
 sub dump_dom {
     my ($namespace, $udom, $regexp) = @_;
@@ -1952,12 +1992,15 @@ sub inst_userrules {
 # ------------- Get Authentication, Language and User Tools Defaults for Domain
 
 sub get_domain_defaults {
-    my ($domain) = @_;
+    my ($domain,$ignore_cache) = @_;
+    return if (($domain eq '') || ($domain eq 'public'));
     my $cachetime = 60*60*24;
-    my ($result,$cached)=&is_cached_new('domdefaults',$domain);
-    if (defined($cached)) {
-        if (ref($result) eq 'HASH') {
-            return %{$result};
+    unless ($ignore_cache) {
+        my ($result,$cached)=&is_cached_new('domdefaults',$domain);
+        if (defined($cached)) {
+            if (ref($result) eq 'HASH') {
+                return %{$result};
+            }
         }
     }
     my %domdefaults;
@@ -1983,13 +2026,16 @@ sub get_domain_defaults {
             $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
         } else {
             $domdefaults{'defaultquota'} = $domconfig{'quotas'};
-        } 
+        }
         my @usertools = ('aboutme','blog','webdav','portfolio');
         foreach my $item (@usertools) {
             if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
                 $domdefaults{$item} = $domconfig{'quotas'}{$item};
             }
         }
+        if (ref($domconfig{'quotas'}{'authorquota'}) eq 'HASH') {
+            $domdefaults{'authorquota'} = $domconfig{'quotas'}{'authorquota'};
+        }
     }
     if (ref($domconfig{'requestcourses'}) eq 'HASH') {
         foreach my $item ('official','unofficial','community') {
@@ -2005,10 +2051,16 @@ sub get_domain_defaults {
         }
     }
     if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
+        $domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'};
         if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
             $domdefaults{'officialcredits'} = $domconfig{'coursedefaults'}{'coursecredits'}{'official'};
             $domdefaults{'unofficialcredits'} = $domconfig{'coursedefaults'}{'coursecredits'}{'unofficial'};
         }
+        if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
+            $domdefaults{'officialquota'} = $domconfig{'coursedefaults'}{'uploadquota'}{'official'};
+            $domdefaults{'unofficialquota'} = $domconfig{'coursedefaults'}{'uploadquota'}{'unofficial'};
+            $domdefaults{'communityquota'} = $domconfig{'coursedefaults'}{'uploadquota'}{'community'};           
+        }
     }
     if (ref($domconfig{'usersessions'}) eq 'HASH') {
         if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
@@ -2615,10 +2667,13 @@ sub ssi {
 
     $request->header(Cookie => $ENV{'HTTP_COOKIE'});
     my $response= $ua->request($request);
+    my $content = $response->content;
+
+
     if (wantarray) {
-	return ($response->content, $response);
+	return ($content, $response);
     } else {
-	return $response->content;
+	return $content;
     }
 }
 
@@ -2650,7 +2705,7 @@ sub allowuploaded {
 #
 # Determine if the current user should be able to edit a particular resource,
 # when viewing in course context.
-# (a) When viewing resource used to determine if "Edit" item is included in
+# (a) When viewing resource used to determine if "Edit" item is included in 
 #     Functions.
 # (b) When displaying folder contents in course editor, used to determine if
 #     "Edit" link will be displayed alongside resource.
@@ -2658,12 +2713,12 @@ sub allowuploaded {
 #  input: six args -- filename (decluttered), course number, course domain,
 #                   url, symb (if registered) and group (if this is a group
 #                   item -- e.g., bulletin board, group page etc.).
-#  output: array of five scalars --
+#  output: array of five scalars -- 
 #          $cfile -- url for file editing if editable on current server
 #          $home -- homeserver of resource (i.e., for author if published,
 #                                           or course if uploaded.).
 #          $switchserver --  1 if server switch will be needed.
-#          $forceedit -- 1 if icon/link should be to go to edit mode
+#          $forceedit -- 1 if icon/link should be to go to edit mode 
 #          $forceview -- 1 if icon/link should be to go to view mode
 #
 
@@ -2752,7 +2807,7 @@ sub can_edit_resource {
                     $forceedit = 1;
                 }
                 $cfile = $resurl;
-            } elsif (($resurl ne '') && (&is_on_map($resurl))) {
+            } elsif (($resurl ne '') && (&is_on_map($resurl))) { 
                 if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) {
                     $incourse = 1;
                     if ($env{'form.forceedit'}) {
@@ -2783,7 +2838,7 @@ sub can_edit_resource {
                 }
             } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
                 my $template = '/res/lib/templates/simpleproblem.problem';
-                if (&is_on_map($template)) {
+                if (&is_on_map($template)) { 
                     $incourse = 1;
                     $forceview = 1;
                     $cfile = $template;
@@ -2808,6 +2863,13 @@ sub can_edit_resource {
                     $cfile =~ s{^http://}{};
                     $cfile = '/adm/wrapper/ext/'.$cfile;
                 }
+            } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
+                if ($env{'form.forceedit'}) {
+                    $forceview = 1;
+                } else {
+                    $forceedit = 1;
+                }
+                $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
             }
         }
         if ($uploaded || $incourse) {
@@ -2823,7 +2885,7 @@ sub can_edit_resource {
                 $cfile=$file;
             }
         }
-        if (($cfile ne '') && (!$incourse || $uploaded) &&
+        if (($cfile ne '') && (!$incourse || $uploaded) && 
             (($home ne '') && ($home ne 'no_host'))) {
             my @ids=&current_machine_ids();
             unless (grep(/^\Q$home\E$/,@ids)) {
@@ -2850,9 +2912,9 @@ sub in_course {
     if ($hideprivileged) {
         my $skipuser;
         my %coursehash = &coursedescription($cdom.'_'.$cnum);
-        my @possdoms = ($cdom);
-        if ($coursehash{'checkforpriv'}) {
-            push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
+        my @possdoms = ($cdom);  
+        if ($coursehash{'checkforpriv'}) { 
+            push(@possdoms,split(/,/,$coursehash{'checkforpriv'})); 
         }
         if (&privileged($uname,$udom,\@possdoms)) {
             $skipuser = 1;
@@ -3356,7 +3418,7 @@ sub extract_embedded_items {
 	    }
 	    if (lc($tagname) eq 'a') {
                 unless (($attr->{'href'} =~ /^#/) || ($attr->{'href'} eq '')) {
-		    &add_filetype($allfiles,$attr->{'href'},'href');
+                    &add_filetype($allfiles,$attr->{'href'},'href');
                 }
 	    }
             if (lc($tagname) eq 'script') {
@@ -3445,8 +3507,26 @@ sub extract_embedded_items {
                     }
                 }
 	    }
+            if (lc($tagname) eq 'iframe') {
+                my $src = $attr->{'src'} ;
+                if (($src ne '') && ($src !~ m{^(/|https?://)})) {
+                    &add_filetype($allfiles,$src,'src');
+                } elsif ($src =~ m{^/}) {
+                    if ($env{'request.course.id'}) {
+                        my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+                        my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+                        my $url = &hreflocation('',$fullpath);
+                        if ($url =~ m{^/uploaded/$cdom/$cnum/docs/(\w+/\d+)/}) {
+                            my $relpath = $1;
+                            if ($src =~ m{^/uploaded/$cdom/$cnum/docs/\Q$relpath\E/(.+)$}) {
+                                &add_filetype($allfiles,$1,'src');
+                            }
+                        }
+                    }
+                }
+            }
             if ($t->[4] =~ m{/>$}) {
-                pop(@state);  
+                pop(@state);
             }
 	} elsif ($t->[0] eq 'E') {
 	    my ($tagname) = ($t->[1]);
@@ -4009,7 +4089,7 @@ sub get_my_roles {
             } else {
                 my $possdoms = [$domain];
                 if (ref($roledoms) eq 'ARRAY') {
-                   push(@{$possdoms},@{$roledoms});
+                   push(@{$possdoms},@{$roledoms}); 
                 }
                 if (&privileged($username,$domain,$possdoms,\@privroles)) {
                     if (!$nothide{$username.':'.$domain}) {
@@ -4116,16 +4196,16 @@ sub courseiddump {
 	    if (($domfilter eq '') ||
 		(&host_domain($tryserver) eq $domfilter)) {
                 my $rep;
-                if (grep { $_ eq $tryserver } &current_machine_ids()) {
-                    $rep = &LONCAPA::Lond::dump_course_id_handler(
-                        join(":", (&host_domain($tryserver), $sincefilter,
-                                &escape($descfilter), &escape($instcodefilter),
+                if (grep { $_ eq $tryserver } current_machine_ids()) {
+                    $rep = LONCAPA::Lond::dump_course_id_handler(
+                        join(":", (&host_domain($tryserver), $sincefilter, 
+                                &escape($descfilter), &escape($instcodefilter), 
                                 &escape($ownerfilter), &escape($coursefilter),
-                                &escape($typefilter), &escape($regexp_ok),
-                                $as_hash, &escape($selfenrollonly),
-                                &escape($catfilter), $showhidden, $caller,
-                                &escape($cloner), &escape($cc_clone), $cloneonly,
-                                &escape($createdbefore), &escape($createdafter),
+                                &escape($typefilter), &escape($regexp_ok), 
+                                $as_hash, &escape($selfenrollonly), 
+                                &escape($catfilter), $showhidden, $caller, 
+                                &escape($cloner), &escape($cc_clone), $cloneonly, 
+                                &escape($createdbefore), &escape($createdafter), 
                                 &escape($creationcontext), $domcloner)));
                 } else {
                     $rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
@@ -4140,7 +4220,7 @@ sub courseiddump {
                              &escape($creationcontext).':'.$domcloner,
                              $tryserver);
                 }
-
+                     
                 my @pairs=split(/\&/,$rep);
                 foreach my $item (@pairs) {
                     my ($key,$value)=split(/\=/,$item,2);
@@ -4788,9 +4868,12 @@ sub restore {
     if ($stuname) { $home=&homeserver($stuname,$domain); }
 
     if (!$symb) {
-      unless ($symb=escape(&symbread())) { return ''; }
+        return if ($namespace eq 'courserequests');
+        unless ($symb=escape(&symbread())) { return ''; }
     } else {
-      $symb=&escape(&symbclean($symb));
+        unless ($namespace eq 'courserequests') {
+            $symb=&escape(&symbclean($symb));
+        }
     }
     if (!$namespace) { 
        unless ($namespace=$env{'request.course.id'}) { 
@@ -4929,7 +5012,7 @@ sub privileged {
     my $now = time;
     my $roles;
     if (ref($possroles) eq 'ARRAY') {
-        $roles = $possroles;
+        $roles = $possroles; 
     } else {
         $roles = ['dc','su'];
     }
@@ -4956,7 +5039,7 @@ sub privileged {
         for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys %rolesdump}) {
             my ($trole, $tend, $tstart) = split(/_/, $role);
             if (grep(/^\Q$trole\E$/,@{$roles})) {
-                return 1 unless ($tend && $tend < $now)
+                return 1 unless ($tend && $tend < $now) 
                         or ($tstart && $tstart > $now);
             }
         }
@@ -4994,7 +5077,7 @@ sub privileged_by_domain {
                         my ($trole,$uname,$udom,$rest) = split(/:/,$item,4);
                         my ($end,$start) = split(/:/,$dompersonnel{$server}{$item});
                         next if ($end && $end < $now);
-                        $privileged{$dom}{$trole}{$uname.':'.$udom} =
+                        $privileged{$dom}{$trole}{$uname.':'.$udom} = 
                             $dompersonnel{$server}{$item};
                     }
                 }
@@ -5465,14 +5548,15 @@ sub unserialize {
     return {} if $rep =~ /^error/;
 
     my %returnhash=();
-    foreach my $item (split(/\&/,$rep)) {
-        my ($key, $value) = split(/=/, $item, 2);
-        $key = unescape($key) unless $escapedkeys;
-        next if $key =~ /^error: 2 /;
-        $returnhash{$key} = &thaw_unescape($value);
-    }
+	foreach my $item (split /\&/, $rep) {
+	    my ($key, $value) = split(/=/, $item, 2);
+	    $key = unescape($key) unless $escapedkeys;
+	    next if $key =~ /^error: 2 /;
+	    $returnhash{$key} = Apache::lonnet::thaw_unescape($value);
+	}
+    #return %returnhash;
     return \%returnhash;
-}
+}        
 
 # see Lond::dump_with_regexp
 # if $escapedkeys hash keys won't get unescaped.
@@ -5483,11 +5567,11 @@ sub dump {
     my $uhome=&homeserver($uname,$udomain);
 
     my $reply;
-    if (grep { $_ eq $uhome } &current_machine_ids()) {
+    if (grep { $_ eq $uhome } current_machine_ids()) {
         # user is hosted on this machine
-        $reply = LONCAPA::Lond::dump_with_regexp(join(':', ($udomain,
-                    $uname, $namespace, $regexp, $range)), $loncaparevs{$uhome});
-        return %{&unserialize($reply, $escapedkeys)};
+        $reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
+                    $uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});
+        return %{unserialize($reply, $escapedkeys)};
     }
     if ($regexp) {
 	$regexp=&escape($regexp);
@@ -5500,7 +5584,8 @@ sub dump {
     if (!($rep =~ /^error/ )) {
 	foreach my $item (@pairs) {
 	    my ($key,$value)=split(/=/,$item,2);
-            $key = &unescape($key) unless ($escapedkeys);
+        $key = unescape($key) unless $escapedkeys;
+        #$key = &unescape($key);
 	    next if ($key =~ /^error: 2 /);
 	    $returnhash{$key}=&thaw_unescape($value);
 	}
@@ -5541,7 +5626,15 @@ sub currentdump {
    $sdom     = $env{'user.domain'}       if (! defined($sdom));
    $sname    = $env{'user.name'}         if (! defined($sname));
    my $uhome = &homeserver($sname,$sdom);
-   my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
+   my $rep;
+
+   if (grep { $_ eq $uhome } current_machine_ids()) {
+       $rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname, 
+                   $courseid)));
+   } else {
+       $rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
+   }
+
    return if ($rep =~ /^(error:|no_such_host)/);
    #
    my %returnhash=();
@@ -5784,13 +5877,13 @@ sub tmpdel {
     return &reply("tmpdel:$token",$server);
 }
 
-# ------------------------------------------------------------ get_timebased_id
+# ------------------------------------------------------------ get_timebased_id 
 
 sub get_timebased_id {
     my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,
         $maxtries) = @_;
     my ($newid,$error,$dellock);
-    unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
+    unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {  
         return ('','ok','invalid call to get suffix');
     }
 
@@ -5804,7 +5897,7 @@ sub get_timebased_id {
     if (!$maxtries) {
         $maxtries = 10;
     }
-
+    
     if (($cdom eq '') || ($cnum eq '')) {
         if ($env{'request.course.id'}) {
             $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
@@ -6135,7 +6228,7 @@ sub usertools_access {
     }
     return if (!defined($tools{$tool}));
 
-    if ((!defined($udom)) || (!defined($uname))) {
+    if (($udom eq '') || ($uname eq '')) {
         $udom = $env{'user.domain'};
         $uname = $env{'user.name'};
     }
@@ -6154,7 +6247,7 @@ sub usertools_access {
 
     my ($toolstatus,$inststatus,$envkey);
     if ($context eq 'requestauthor') {
-        $envkey = $context;
+        $envkey = $context; 
     } else {
         $envkey = $context.'.'.$tool;
     }
@@ -7226,19 +7319,23 @@ sub definerole {
 # ---------------- Make a metadata query against the network of library servers
 
 sub metadata_query {
-    my ($query,$custom,$customshow,$server_array)=@_;
+    my ($query,$custom,$customshow,$server_array,$domains_hash)=@_;
     my %rhash;
     my %libserv = &all_library();
     my @server_list = (defined($server_array) ? @$server_array
                                               : keys(%libserv) );
     for my $server (@server_list) {
+        my $domains = ''; 
+        if (ref($domains_hash) eq 'HASH') {
+            $domains = $domains_hash->{$server}; 
+        }
 	unless ($custom or $customshow) {
-	    my $reply=&reply("querysend:".&escape($query),$server);
+	    my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);
 	    $rhash{$server}=$reply;
 	}
 	else {
 	    my $reply=&reply("querysend:".&escape($query).':'.
-			     &escape($custom).':'.&escape($customshow),
+			     &escape($custom).':'.&escape($customshow).':'.&escape($domains),
 			     $server);
 	    $rhash{$server}=$reply;
 	}
@@ -8024,7 +8121,7 @@ sub assignrole {
                         }
                     }
                 } elsif ($context eq 'requestauthor') {
-                    if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
+                    if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) && 
                         ($url eq '/'.$udom.'/') && ($role eq 'au')) {
                         if ($env{'environment.requestauthor'} eq 'automatic') {
                             $refused = '';
@@ -8032,13 +8129,13 @@ sub assignrole {
                             my %domdefaults = &get_domain_defaults($udom);
                             if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
                                 my $checkbystatus;
-                                if ($env{'user.adv'}) {
+                                if ($env{'user.adv'}) { 
                                     my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
                                     if ($disposition eq 'automatic') {
                                         $refused = '';
                                     } elsif ($disposition eq '') {
                                         $checkbystatus = 1;
-                                    }
+                                    } 
                                 } else {
                                     $checkbystatus = 1;
                                 }
@@ -8125,7 +8222,7 @@ sub assignrole {
                            $context);
         } elsif (($role eq 'ca') || ($role eq 'aa')) {
             &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
-                             $context);
+                             $context); 
         }
         if ($role eq 'cc') {
             &autoupdate_coowners($url,$end,$start,$uname,$udom);
@@ -8437,10 +8534,10 @@ sub modifystudent {
          $desiredhome,$email,$inststatus);
     unless ($reply eq 'ok') { return $reply; }
     # This will cause &modify_student_enrollment to get the uid from the
-    # students environment
+    # student's environment
     $uid = undef if (!$forceid);
     $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
-					$gene,$usec,$end,$start,$type,$locktype,
+                                        $gene,$usec,$end,$start,$type,$locktype,
                                         $cid,$selfenroll,$context,$credits);
     return $reply;
 }
@@ -8748,6 +8845,9 @@ sub store_userdata {
                     $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
                 }
                 $namevalue=~s/\&$//;
+                unless ($namespace eq 'courserequests') {
+                    $datakey = &escape($datakey);
+                }
                 $result =  &reply("store:$udom:$uname:$namespace:$datakey:".
                                   $namevalue,$uhome);
             }
@@ -9570,6 +9670,26 @@ sub resdata {
     return undef;
 }
 
+sub get_numsuppfiles {
+    my ($cnum,$cdom,$ignorecache)=@_;
+    my $hashid=$cnum.':'.$cdom;
+    my ($suppcount,$cached);
+    unless ($ignorecache) {
+        ($suppcount,$cached) = &is_cached_new('suppcount',$hashid);
+    }
+    unless (defined($cached)) {
+        my $chome=&homeserver($cnum,$cdom);
+        unless ($chome eq 'no_host') {
+            ($suppcount,my $errors) = (0,0);
+            my $suppmap = 'supplemental.sequence';
+            ($suppcount,$errors) = 
+                &Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount,$errors);
+        }
+        &do_cache_new('suppcount',$hashid,$suppcount,600);
+    }
+    return $suppcount;
+}
+
 #
 # EXT resource caching routines
 #
@@ -9598,7 +9718,7 @@ sub EXT_cache_set {
 # --------------------------------------------------------- Value of a Variable
 sub EXT {
 
-    my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
+    my ($varname,$symbparm,$udom,$uname,$usection,$recurse,$cid)=@_;
     unless ($varname) { return ''; }
     #get real user name/domain, courseid and symb
     my $courseid;
@@ -9713,26 +9833,51 @@ sub EXT {
 	    if (!$symbparm) { $symbparm=&symbread(); }
 	}
 
-	if ($space eq 'title') {
-	    if (!$symbparm) { $symbparm = $env{'request.filename'}; }
-	    return &gettitle($symbparm);
-	}
+        if ($qualifier eq '') {
+	    if ($space eq 'title') {
+	        if (!$symbparm) { $symbparm = $env{'request.filename'}; }
+	        return &gettitle($symbparm);
+	    }
 	
-	if ($space eq 'map') {
-	    my ($map) = &decode_symb($symbparm);
-	    return &symbread($map);
-	}
-	if ($space eq 'filename') {
-	    if ($symbparm) {
-		return &clutter((&decode_symb($symbparm))[2]);
+	    if ($space eq 'map') {
+	        my ($map) = &decode_symb($symbparm);
+	        return &symbread($map);
+	    }
+            if ($space eq 'maptitle') {
+                my ($map) = &decode_symb($symbparm);
+                return &gettitle($map);
+            }
+	    if ($space eq 'filename') {
+	        if ($symbparm) {
+		    return &clutter((&decode_symb($symbparm))[2]);
+	        }
+	        return &hreflocation('',$env{'request.filename'});
 	    }
-	    return &hreflocation('',$env{'request.filename'});
-	}
+
+            if ((defined($courseid)) && ($courseid eq $env{'request.course.id'}) && $symbparm) {
+                if ($space eq 'visibleparts') {
+                    my $navmap = Apache::lonnavmaps::navmap->new();
+                    my $item;
+                    if (ref($navmap)) {
+                        my $res = $navmap->getBySymb($symbparm);
+                        my $parts = $res->parts();
+                        if (ref($parts) eq 'ARRAY') {
+                            $item = join(',',@{$parts});
+                        }
+                        undef($navmap);
+                    }
+                    return $item;
+                }
+            }
+        }
 
 	my ($section, $group, @groups);
 	my ($courselevelm,$courselevel);
-	if ($symbparm && defined($courseid) && 
-	    $courseid eq $env{'request.course.id'}) {
+        if (($courseid eq '') && ($cid)) {
+            $courseid = $cid;
+        }
+	if (($symbparm && $courseid) && 
+	    (($courseid eq $env{'request.course.id'}) || ($courseid eq $cid)))  {
 
 	    #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
 
@@ -10357,78 +10502,6 @@ sub gettitle {
     return $title;
 }
 
-sub getdocspath {
-    my ($symb) = @_;
-    my $path;
-    if ($symb) {
-        my ($mapurl,$id,$resurl) = &decode_symb($symb);
-        if ($resurl=~/\.(sequence|page)$/) {
-            $mapurl=$resurl;
-        } elsif ($resurl eq 'adm/navmaps') {
-            $mapurl=$env{'course.'.$env{'request.course.id'}.'.url'};
-        }
-        my $mapresobj;
-        my $navmap = Apache::lonnavmaps::navmap->new();
-        if (ref($navmap)) {
-            $mapresobj = $navmap->getResourceByUrl($mapurl);
-        }
-        $mapurl=~s{^.*/([^/]+)\.(\w+)$}{$1};
-        my $type=$2;
-        if (ref($mapresobj)) {
-            my $pcslist = $mapresobj->map_hierarchy();
-            if ($pcslist ne '') {
-                foreach my $pc (split(/,/,$pcslist)) {
-                    next if ($pc <= 1);
-                    my $res = $navmap->getByMapPc($pc);
-                    if (ref($res)) {
-                        my $thisurl = $res->src();
-                        $thisurl=~s{^.*/([^/]+)\.\w+$}{$1};
-                        my $thistitle = $res->title();
-                        $path .= '&'.
-                                 &Apache::lonhtmlcommon::entity_encode($thisurl).'&'.
-                                 &Apache::lonhtmlcommon::entity_encode($thistitle).
-                                 ':'.$res->randompick().
-                                 ':'.$res->randomout().
-                                 ':'.$res->encrypted().
-                                 ':'.$res->randomorder().
-                                 ':'.$res->is_page();
-                    }
-                }
-            }
-            $path =~ s/^\&//;
-            my $maptitle = $mapresobj->title();
-            if ($mapurl eq 'default') {
-                $maptitle = 'Main Course Documents';
-            }
-            $path .= ($path ne '')? '&' : ''.
-                    &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
-                    &Apache::lonhtmlcommon::entity_encode($maptitle).
-                    ':'.$mapresobj->randompick().
-                    ':'.$mapresobj->randomout().
-                    ':'.$mapresobj->encrypted().
-                    ':'.$mapresobj->randomorder().
-                    ':'.$mapresobj->is_page();
-        } else {
-            my $maptitle = &gettitle($mapurl);
-            my $ispage;
-            if ($mapurl =~ /\.page$/) {
-                $ispage = 1;
-            }
-            if ($mapurl eq 'default') {
-                $maptitle = 'Main Course Documents';
-            }
-            $path = &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
-                    &Apache::lonhtmlcommon::entity_encode($maptitle).':::::'.$ispage;
-        }
-        unless ($mapurl eq 'default') {
-            $path = 'default&'.
-                    &Apache::lonhtmlcommon::entity_encode('Main Course Documents').
-                    ':::::&'.$path;
-        }
-    }
-    return $path;
-}
-
 sub get_slot {
     my ($which,$cnum,$cdom)=@_;
     if (!$cnum || !$cdom) {
@@ -10592,7 +10665,7 @@ sub symbverify {
             $ids=$bighash{'ids_'.&clutter($thisurl)};
         }
         unless ($ids) {
-            my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
+            my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;  
             $ids=$bighash{$idkey};
         }
         if ($ids) {
@@ -10608,14 +10681,14 @@ sub symbverify {
                    if (ref($encstate)) {
                        $$encstate = $bighash{'encrypted_'.$id};
                    }
-                   if (($env{'request.role.adv'}) ||
-                       ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
+		   if (($env{'request.role.adv'}) ||
+		       ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
                        ($thisurl eq '/adm/navmaps')) {
-                       $okay=1;
+		       $okay=1;
                        last;
-                   }
-               }
-           }
+		   }
+	       }
+	   }
         }
 	untie(%bighash);
     }
@@ -10694,12 +10767,12 @@ sub symbread {
         if ($env{$cache_str} ne '') {
             return $env{$cache_str};
         }
-   } else {
+    } else {
 # no filename provided? try from environment
         if ($env{'request.symb'}) {
-            return $env{$cache_str}=&symbclean($env{'request.symb'});
-        }
-        $thisfn=$env{'request.filename'};
+	    return $env{$cache_str}=&symbclean($env{'request.symb'});
+	}
+	$thisfn=$env{'request.filename'};
     }
     if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
 # is that filename actually a symb? Verify, clean, and return
@@ -10927,6 +11000,7 @@ sub rndseed {
 	$which =&get_rand_alg($courseid);
     }
     if (defined(&getCODE())) {
+
 	if ($which eq '64bit5') {
 	    return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
 	} elsif ($which eq '64bit4') {
@@ -11639,9 +11713,9 @@ sub get_dns {
         delete($alldns{$dns});
 	next if ($response->is_error());
 	my @content = split("\n",$response->content);
-        unless ($nocache) {
+	unless ($nocache) {
 	    &do_cache_new('dns',$url,\@content,30*24*60*60);
-        }
+	}
 	&$func(\@content,$hashref);
 	return;
     }
@@ -11663,30 +11737,12 @@ sub parse_dns_checksums_tab {
     my (%chksum,%revnum);
     if (ref($lines) eq 'ARRAY') {
         chomp(@{$lines});
-        my $versions = shift(@{$lines});
-        my %supported;
-        if ($versions =~ /^VERSIONS\:([\w\.\,]+)$/) {
-            my $releaseslist = $1;
-            if ($releaseslist =~ /,/) {
-                map { $supported{$_} = 1; } split(/,/,$releaseslist);
-            } elsif ($releaseslist) {
-                $supported{$releaseslist} = 1;
-            }
-        }
-        if ($supported{$release}) {
-            my $matchthis = 0;
+        my $version = shift(@{$lines});
+        if ($version eq $release) {  
             foreach my $line (@{$lines}) {
-                if ($line =~ /^(\d[\w\.]+)$/) {
-                    if ($matchthis) {
-                        last;
-                    } elsif ($1 eq $release) {
-                        $matchthis = 1;
-                    }
-                } elsif ($matchthis) {
-                    my ($file,$version,$shasum) = split(/,/,$line);
-                    $chksum{$file} = $shasum;
-                    $revnum{$file} = $version;
-                }
+                my ($file,$version,$shasum) = split(/,/,$line);
+                $chksum{$file} = $shasum;
+                $revnum{$file} = $version;
             }
             if (ref($hashref) eq 'HASH') {
                 %{$hashref} = (
@@ -11701,7 +11757,10 @@ sub parse_dns_checksums_tab {
 
 sub fetch_dns_checksums {
     my %checksums;
-    &get_dns('/adm/dns/checksums',\&parse_dns_checksums_tab,1,1,
+    my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
+    my $loncaparev = &get_server_loncaparev($machine_dom);
+    my ($release,$timestamp) = split(/\-/,$loncaparev);
+    &get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1,
              \%checksums);
     return \%checksums;
 }
@@ -12082,6 +12141,39 @@ sub all_loncaparevs {
     return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10);
 }
 
+# ---------------------------------------------------------- Read loncaparev table
+{
+    sub load_loncaparevs { 
+        if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
+            if (open(my $config,"<$perlvar{'lonTabDir'}/loncaparevs.tab")) {
+                while (my $configline=<$config>) {
+                    chomp($configline);
+                    my ($hostid,$loncaparev)=split(/:/,$configline);
+                    $loncaparevs{$hostid}=$loncaparev;
+                }
+                close($config);
+            }
+        }
+    }
+}
+
+# ---------------------------------------------------------- Read serverhostID table
+{
+    sub load_serverhomeIDs {
+        if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
+            if (open(my $config,"<$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
+                while (my $configline=<$config>) {
+                    chomp($configline);
+                    my ($name,$id)=split(/:/,$configline);
+                    $serverhomeIDs{$name}=$id;
+                }
+                close($config);
+            }
+        }
+    }
+}
+
+
 BEGIN {
 
 # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
@@ -12158,33 +12250,14 @@ BEGIN {
 }
 
 # ---------------------------------------------------------- Read loncaparev table
-{
-    if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
-        if (open(my $config,"<$perlvar{'lonTabDir'}/loncaparevs.tab")) {
-            while (my $configline=<$config>) {
-                chomp($configline);
-                my ($hostid,$loncaparev)=split(/:/,$configline);
-                $loncaparevs{$hostid}=$loncaparev;
-            }
-            close($config);
-        }
-    }
-}
+
+&load_loncaparevs();
 
 # ---------------------------------------------------------- Read serverhostID table
-{
-    if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
-        if (open(my $config,"<$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
-            while (my $configline=<$config>) {
-                chomp($configline);
-                my ($name,$id)=split(/:/,$configline);
-                $serverhomeIDs{$name}=$id;
-            }
-            close($config);
-        }
-    }
-}
 
+&load_serverhomeIDs();
+
+# ---------------------------------------------------------- Read releaseslist XML
 {
     my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
     if (-e $file) {
@@ -12394,8 +12467,8 @@ were new keys. I.E. 1:foo will become 1:
 
 Calling convention:
 
- my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
- &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
+ my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname);
+ &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname);
 
 For more detailed information, see lonnet specific documentation.
 
@@ -12589,9 +12662,9 @@ provided for types, will default to retu
 =item *
 
 in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if
-user: $uname:$udom has a role in the course: $cdom_$cnum.
+user: $uname:$udom has a role in the course: $cdom_$cnum. 
 
-Additional optional arguments are: $type (if role checking is to be restricted
+Additional optional arguments are: $type (if role checking is to be restricted 
 to certain user status types -- previous (expired roles), active (currently
 available roles) or future (roles available in the future), and
 $hideprivileged -- if true will not report course roles for users who
@@ -12662,8 +12735,8 @@ or when Autoupdate.pl is run by cron in
 modifystudent
 
 modify a student's enrollment and identification information.
-The course id is resolved based on the current users environment.  
-This means the envoking user must be a course coordinator or otherwise
+The course id is resolved based on the current user's environment.  
+This means the invoking user must be a course coordinator or otherwise
 associated with a course.
 
 This call is essentially a wrapper for lonnet::modifyuser and
@@ -12723,20 +12796,20 @@ Inputs:
 
 modify_student_enrollment
 
-Change a students enrollment status in a class.  The environment variable
+Change a student's enrollment status in a class.  The environment variable
 'role.request.course' must be defined for this function to proceed.
 
 Inputs:
 
 =over 4
 
-=item $udom, students domain
+=item $udom, student's domain
 
-=item $uname, students name
+=item $uname, student's name
 
-=item $uid, students user id
+=item $uid, student's user id
 
-=item $first, students first name
+=item $first, student's first name
 
 =item $middle
 
@@ -12818,7 +12891,7 @@ If defined, the supplied username is use
 resdata($name,$domain,$type,@which) : request for current parameter
 setting for a specific $type, where $type is either 'course' or 'user',
 @what should be a list of parameters to ask about. This routine caches
-answers for 5 minutes.
+answers for 10 minutes.
 
 =item *
 
@@ -12827,6 +12900,10 @@ data base, returning a hash that is keye
 values that are the resource value.  I believe that the timestamps and
 versions are also returned.
 
+get_numsuppfiles($cnum,$cdom) : retrieve number of files in a course's
+supplemental content area. This routine caches the number of files for 
+10 minutes.
+
 =back
 
 =head2 Course Modification
@@ -12886,10 +12963,15 @@ resource. Expects the local filesystem p
 
 =item *
 
-EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
-a vairety of different possible values, $varname should be a request
-string, and the other parameters can be used to specify who and what
-one is asking about.
+EXT($varname,$symb,$udom,$uname,$usection,$recurse,$cid) : evaluates 
+and returns the value of a variety of different possible values,
+$varname should be a request string, and the other parameters can be
+used to specify who and what one is asking about. Ordinarily, $cid 
+does not need to be specified, as it is retrived from 
+$env{'request.course.id'}, but &Apache::lonnet::EXT() is called
+within lonuserstate::loadmap() when initializing a course, before
+$env{'request.course.id'} has been set, so it needs to be provided
+in that one case.
 
 Possible values for $varname are environment.lastname (or other item
 from the envirnment hash), user.name (or someother aspect about the
@@ -12932,9 +13014,9 @@ and is a possible symb for the URL in $t
 resource that the user accessed using /enc/ returns a 1 on success, 0
 on failure, user must be in a course, as it assumes the existence of
 the course initial hash, and uses $env('request.course.id'}.  The third
-arg is an optional reference to a scalar.  If this arg is passed in the
+arg is an optional reference to a scalar.  If this arg is passed in the 
 call to symbverify, it will be set to 1 if the symb has been set to be 
-encrypted; otherwise it will be null.
+encrypted; otherwise it will be null.  
 
 =item *
 
@@ -12987,13 +13069,13 @@ expirespread($uname,$udom,$stype,$usymb)
 devalidate($symb) : devalidate temporary spreadsheet calculations,
 forcing spreadsheet to reevaluate the resource scores next time.
 
-=item *
+=item * 
 
 can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,
 when viewing in course context.
 
  input: six args -- filename (decluttered), course number, course domain,
-                    url, symb (if registered) and group (if this is a
+                    url, symb (if registered) and group (if this is a 
                     group item -- e.g., bulletin board, group page etc.).
 
  output: array of five scalars --
@@ -13001,15 +13083,15 @@ when viewing in course context.
          $home -- homeserver of resource (i.e., for author if published,
                                           or course if uploaded.).
          $switchserver --  1 if server switch will be needed.
-         $forceedit -- 1 if icon/link should be to go to edit mode
+         $forceedit -- 1 if icon/link should be to go to edit mode 
          $forceview -- 1 if icon/link should be to go to view mode
 
 =item *
 
 is_course_upload($file,$cnum,$cdom)
 
-Used in course context to determine if current file was uploaded to
-the course (i.e., would be found in /userfiles/docs on the course's
+Used in course context to determine if current file was uploaded to 
+the course (i.e., would be found in /userfiles/docs on the course's 
 homeserver.
 
   input: 3 args -- filename (decluttered), course number and course domain.
@@ -13167,15 +13249,90 @@ server ($udom and $uhome are optional)
 
 =item * 
 
-get_domain_defaults($target_domain) : returns hash with defaults for
-authentication and language in the domain. Keys are: auth_def, auth_arg_def,
-lang_def; corresponsing values are authentication type (internal, krb4, krb5,
-or localauth), initial password or a kerberos realm, language (e.g., en-us).
-Values are retrieved from cache (if current), or from domain's configuration.db
-(if available), or lastly from values in lonTabs/dns_domain,tab, 
-or lonTabs/domain.tab. 
+get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults 
+for: authentication, language, quotas, timezone, date locale, and portal URL in
+the target domain.
+
+May also include additional key => value pairs for the following groups:
+
+=over
+
+=item
+disk quotas (MB allocated by default to portfolios and authoring spaces).
+
+=over
+
+=item defaultquota, authorquota
+
+=back
+
+=item
+tools (availability of aboutme page, blog, webDAV access for authoring spaces,
+portfolio for users).
+
+=over
+
+=item
+aboutme, blog, webdav, portfolio
+
+=back
+
+=item
+requestcourses: ability to request courses, and how requests are processed.
+
+=over
+
+=item
+official, unofficial, community
+
+=back
+
+=item
+inststatus: types of institutional affiliation, and order in which they are displayed.
+
+=over
+
+=item
+inststatustypes, inststatusorder
+
+=back
+
+=item
+coursedefaults: can PDF forms can be created, default credits for courses, default quotas (MB)
+for course's uploaded content.
+
+=over
+
+=item
+canuse_pdfforms, officialcredits, unofficialcredits, officialquota, unofficialquota, communityquota
+
+=back
+
+=item
+usersessions: set options for hosting of your users in other domains, and hosting of users from other domains
+on your servers.
+
+=over
+
+=item 
+remotesessions, hostedsessions
+
+=back
+
+=back
+
+In cases where a domain coordinator has never used the "Set Domain Configuration"
+utility to create a configuration.db file on a domain's primary library server 
+only the following domain defaults: auth_def, auth_arg_def, lang_def
+-- corresponding values are authentication type (internal, krb4, krb5,
+or localauth), initial password or a kerberos realm, language (e.g., en-us) -- 
+will be available. Values are retrieved from cache (if current), unless the
+optional $ignore_cache arg is true, or from domain's configuration.db (if available),
+or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab.
+
+Typical usage:
 
-%domdefaults = &get_auth_defaults($target_domain);
+%domdefaults = &get_domain_defaults($target_domain);
 
 =back
 
@@ -13595,8 +13752,8 @@ Returns:
 
 get_timebased_id():
 
-Attempts to get a unique timestamp-based suffix for use with items added to a
-course via the Course Editor (e.g., folders, composite pages,
+Attempts to get a unique timestamp-based suffix for use with items added to a 
+course via the Course Editor (e.g., folders, composite pages, 
 group bulletin boards).
 
 Args: (first three required; six others optional)
@@ -13607,24 +13764,24 @@ Args: (first three required; six others
 2. keyid (alphanumeric): name of temporary locking key in hash,
    e.g., num, boardids
 
-3. namespace: name of gdbm file used to store suffixes already assigned;
+3. namespace: name of gdbm file used to store suffixes already assigned;  
    file will be named nohist_namespace.db
 
 4. cdom: domain of course; default is current course domain from %env
 
 5. cnum: course number; default is current course number from %env
 
-6. idtype: set to concat if an additional digit is to be appended to the
+6. idtype: set to concat if an additional digit is to be appended to the 
    unix timestamp to form the suffix, if the plain timestamp is already
-   in use.  Default is to not do this, but simply increment the unix
+   in use.  Default is to not do this, but simply increment the unix 
    timestamp by 1 until a unique key is obtained.
 
 7. who: holder of locking key; defaults to user:domain for user.
 
-8. locktries: number of attempts to obtain a lock (sleep of 1s before
+8. locktries: number of attempts to obtain a lock (sleep of 1s before 
    retrying); default is 3.
 
-9. maxtries: number of attempts to obtain a unique suffix; default is 20.
+9. maxtries: number of attempts to obtain a unique suffix; default is 20.  
 
 Returns: