--- loncom/interface/domainprefs.pm	2013/08/13 16:19:26	1.204
+++ loncom/interface/domainprefs.pm	2013/09/29 06:53:35	1.210
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set domain-wide configuration settings
 #
-# $Id: domainprefs.pm,v 1.204 2013/08/13 16:19:26 raeburn Exp $
+# $Id: domainprefs.pm,v 1.210 2013/09/29 06:53:35 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -86,7 +86,7 @@ $dom,$settings,$rowtotal,$action.
 
 $dom is the domain, $settings is a reference to a hash of current settings for
 the current context, $rowtotal is a reference to the scalar used to record the 
-number of rows displayed on the page, and $action is the context (quotas,  
+number of rows displayed on the page, and $action is the context (quotas, 
 requestcourses or requestauthor).
 
 The print_quotas routine was orginally created to display/store information
@@ -416,7 +416,11 @@ sub handler {
     my $confname = $dom.'-domainconfig';
 
     if ($phase eq 'process') {
-        &Apache::lonconfigsettings::make_changes($r,$dom,$phase,$context,\@prefs_order,\%prefs,\%domconfig,$confname,\@roles);
+        if (&Apache::lonconfigsettings::make_changes($r,$dom,$phase,$context,\@prefs_order,
+                                                     \%prefs,\%domconfig,$confname,\@roles) eq 'update') {
+            $r->rflush();
+            &devalidate_remote_domconfs($dom);
+        }
     } elsif ($phase eq 'display') {
         my $js = &recaptcha_js().
                  &credits_js();
@@ -438,7 +442,7 @@ sub handler {
         unless ($configuserok eq 'ok') {
             &Apache::lonconfigsettings::print_header($r,$phase,$context);
             $r->print(&mt('The domain configuration user "[_1]" has yet to be created.',
-                           $confname).
+                          $confname).
                       '<br />'
             );
             if ($switchserver) {
@@ -498,21 +502,21 @@ sub handler {
 }
 
 sub process_changes {
-    my ($r,$dom,$confname,$action,$roles,$values) = @_;
+    my ($r,$dom,$confname,$action,$roles,$values,$lastactref) = @_;
     my %domconfig;
     if (ref($values) eq 'HASH') {
         %domconfig = %{$values};
     }
     my $output;
     if ($action eq 'login') {
-        $output = &modify_login($r,$dom,$confname,%domconfig);
+        $output = &modify_login($r,$dom,$confname,$lastactref,%domconfig);
     } elsif ($action eq 'rolecolors') {
         $output = &modify_rolecolors($r,$dom,$confname,$roles,
-                                     %domconfig);
+                                     $lastactref,%domconfig);
     } elsif ($action eq 'quotas') {
         $output = &modify_quotas($dom,$action,%domconfig);
     } elsif ($action eq 'autoenroll') {
-        $output = &modify_autoenroll($dom,%domconfig);
+        $output = &modify_autoenroll($dom,$lastactref,%domconfig);
     } elsif ($action eq 'autoupdate') {
         $output = &modify_autoupdate($dom,%domconfig);
     } elsif ($action eq 'autocreate') {
@@ -524,11 +528,11 @@ sub process_changes {
     } elsif ($action eq 'usermodification') {
         $output = &modify_usermodification($dom,%domconfig);
     } elsif ($action eq 'contacts') {
-        $output = &modify_contacts($dom,%domconfig);
+        $output = &modify_contacts($dom,$lastactref,%domconfig);
     } elsif ($action eq 'defaults') {
         $output = &modify_defaults($dom,$r,%domconfig);
     } elsif ($action eq 'scantron') {
-        $output = &modify_scantron($r,$dom,$confname,%domconfig);
+        $output = &modify_scantron($r,$dom,$confname,$lastactref,%domconfig);
     } elsif ($action eq 'coursecategories') {
         $output = &modify_coursecategories($dom,%domconfig);
     } elsif ($action eq 'serverstatuses') {
@@ -571,7 +575,7 @@ sub print_config_box {
     if ($numheaders > 1) {
         my $colspan = '';
         my $rightcolspan = '';
-        if (($action eq 'rolecolors') || ($action eq 'coursecategories') || 
+        if (($action eq 'rolecolors') || ($action eq 'coursecategories') ||
             (($action eq 'login') && ($numheaders < 3))) {
             $colspan = ' colspan="2"';
         }
@@ -1552,7 +1556,7 @@ sub print_quotas {
     } elsif ($context eq 'requestauthor') {
         @usertools = ('author');
         @options = ('norequest','approval','automatic');
-        %titles = &authorrequest_titles(); 
+        %titles = &authorrequest_titles();
     } else {
         @usertools = ('aboutme','blog','webdav','portfolio');
         %titles = &tool_titles();
@@ -1959,7 +1963,7 @@ sub print_quotas {
 
 sub print_requestmail {
     my ($dom,$action,$settings,$rowtotal) = @_;
-    my ($now,$datatable,%currapp,$rows);
+    my ($now,$datatable,%currapp);
     $now = time;
     if (ref($settings) eq 'HASH') {
         if (ref($settings->{'notify'}) eq 'HASH') {
@@ -2152,7 +2156,7 @@ sub print_autocreate {
                 }
             }
         }
-        if ($settings->{'xmldc'} ne '') { 
+        if ($settings->{'xmldc'} ne '') {
             $currhash{$settings->{'xmldc'}} = 1;
         }
     } else {
@@ -2538,7 +2542,7 @@ sub print_coursedefaults {
         $datatable .= '</tr></table></td></tr>'."\n";
         $itemcount += 2;
         my $onclick = 'toggleCredits(this.form);';
-        my $display = 'none';  
+        my $display = 'none';
         if ($currusecredits) {
             $display = 'block';
         }
@@ -2993,7 +2997,7 @@ sub print_loadbalancing {
     }
     my ($othertitle,$usertypes,$types) =
         &Apache::loncommon::sorted_inst_types($dom);
-    my $rownum = 6;
+    my $rownum = 8;
     if (ref($types) eq 'ARRAY') {
         $rownum += scalar(@{$types});
     }
@@ -3024,7 +3028,7 @@ sub print_loadbalancing {
                       '<td rowspan="'.$rownum.'" valign="top">'.
                       '<p>';
         if ($lonhost eq '') {
-            $datatable .= '<span class="LC_nobreak">'; 
+            $datatable .= '<span class="LC_nobreak">';
             if (keys(%currbalancer) > 0) {
                 $datatable .= &mt('Add balancer:');
             } else {
@@ -3040,7 +3044,7 @@ sub print_loadbalancing {
                 next if ($currbalancer{$server});
                 $datatable .= '<option value="'.$server.'">'.$server.'</option>'."\n";
             }
-            $datatable .= 
+            $datatable .=
                 '</select>'."\n".
                 '<input type="hidden" name="loadbalancing_prevlonhost_'.$balnum.'" id="loadbalancing_prevlonhost_'.$balnum.'" value="" />&nbsp;</span>'."\n";
         } else {
@@ -3079,7 +3083,7 @@ sub print_loadbalancing {
                 if (exists($currbalancer{$spares[$i]})) {
                     $disabled = ' disabled="disabled"';
                 }
-                $targettable .= 
+                $targettable .=
                     '<td><label><input type="checkbox" name="loadbalancing_target_'.$balnum.'_'.$sparetype.'"'.
                     $checked.$disabled.' value="'.$chkboxval.'" id="loadbalancing_target_'.$balnum.'_'.$sparetype.'_'.$i.'" onclick="checkOffloads('."this,'$balnum','$sparetype'".');" /><span id="loadbalancing_targettxt_'.$balnum.'_'.$sparetype.'_'.$i.'">&nbsp;'.$chkboxval.
                     '</span></label></td>';
@@ -3163,7 +3167,7 @@ sub loadbalancing_rules {
         $css_class,$balnum,$islast) = @_;
     my $output;
     my $num = 0;
-    my ($alltypes,$othertypes,$titles) = 
+    my ($alltypes,$othertypes,$titles) =
         &loadbalancing_titles($dom,$intdom,$usertypes,$types);
     if ((ref($alltypes) eq 'ARRAY') && (ref($titles) eq 'HASH'))  {
         foreach my $type (@{$alltypes}) {
@@ -3172,7 +3176,7 @@ sub loadbalancing_rules {
             if (ref($currrules) eq 'HASH') {
                 $current = $currrules->{$type};
             }
-            if (($type eq '_LC_external') || ($type eq '_LC_internetdom')) {
+            if (($type eq '_LC_external') || ($type eq '_LC_internetdom') || ($type eq '_LC_ipchange')) {
                 if ($dom ne &Apache::lonnet::host_domain($lonhost)) {
                     $current = '';
                 }
@@ -3193,8 +3197,10 @@ sub loadbalancing_titles {
            '_LC_author'      => &mt('Users from [_1] with author role',$dom),
            '_LC_internetdom' => &mt('Users not from [_1], but from [_2]',$dom,$intdom),
            '_LC_external'    => &mt('Users not from [_1]',$intdom),
+           '_LC_ipchangesso' => &mt('SSO users from [_1], with IP mismatch',$dom),
+           '_LC_ipchange'    => &mt('Non-SSO users with IP mismatch'),
                      );
-    my @alltypes = ('_LC_adv','_LC_author','_LC_internetdom','_LC_external');
+    my @alltypes = ('_LC_adv','_LC_author','_LC_internetdom','_LC_external','_LC_ipchangesso','_LC_ipchange');
     if (ref($types) eq 'ARRAY') {
         unshift(@alltypes,@{$types},'default');
     }
@@ -3219,23 +3225,28 @@ sub loadbalancing_titles {
 sub loadbalance_rule_row {
     my ($type,$title,$current,$servers,$currbalancer,$lonhost,$dom,
         $targets_div_style,$homedom_div_style,$css_class,$balnum,$num,$islast) = @_;
-    my @rulenames = ('default','homeserver');
+    my @rulenames;
     my %ruletitles = &offloadtype_text();
-    if ($type eq '_LC_external') {
-        push(@rulenames,'externalbalancer');
+    if (($type eq '_LC_ipchangesso') || ($type eq '_LC_ipchange')) {
+        @rulenames = ('balancer','offloadedto');
     } else {
-        push(@rulenames,'specific');
+        @rulenames = ('default','homeserver');
+        if ($type eq '_LC_external') {
+            push(@rulenames,'externalbalancer');
+        } else {
+            push(@rulenames,'specific');
+        }
+        push(@rulenames,'none');
     }
-    push(@rulenames,'none');
     my $style = $targets_div_style;
-    if (($type eq '_LC_external') || ($type eq '_LC_internetdom')) {
+    if (($type eq '_LC_external') || ($type eq '_LC_internetdom') || ($type eq '_LC_ipchange')) {
         $style = $homedom_div_style;
     }
     my $space;
     if ($islast && $num == 1) {
         $space = '<div display="inline-block">&nbsp;</div>';
     }
-    my $output = 
+    my $output =
         '<tr class="'.$css_class.'" id="balanceruletr_'.$balnum.'_'.$num.'"><td valign="top">'.$space.
         '<div id="balanceruletitle_'.$balnum.'_'.$type.'" style="'.$style.'">'.$title.'</div></td>'."\n".
         '<td valaign="top">'.$space.
@@ -3255,7 +3266,7 @@ sub loadbalance_rule_row {
                 unless ($checked) {
                     $default = ' selected="selected"';
                 }
-                $extra = 
+                $extra =
                     ':&nbsp;<select name="loadbalancing_singleserver_'.$balnum.'_'.$type.
                     '" id="loadbalancing_singleserver_'.$balnum.'_'.$type.
                     '" onchange="singleServerToggle('."'$balnum','$type'".')">'."\n".
@@ -3293,6 +3304,8 @@ sub offloadtype_text {
            'externalbalancer' => "Offloads to Load Balancer in user's domain",
            'specific'         => 'Offloads to specific server',
            'none'             => 'No offload',
+           'balancer'         => 'Session hosted on Load Balancer, after re-authentication',
+           'offloadedto'      => 'Session hosted on offload server, after re-authentication',
     );
     return %ruletitles;
 }
@@ -3358,7 +3371,7 @@ sub authorrequest_titles {
                                    automatic  => 'Automatic approval',
                  );
     return %titles;
-} 
+}
 
 sub courserequest_conditions {
     my %conditions = &Apache::lonlocal::texthash (
@@ -3597,9 +3610,9 @@ sub captcha_choice {
 #
 # Note: If reCAPTCHA is to be used for LON-CAPA servers in a domain, a domain coordinator should visit:
 # https://www.google.com/recaptcha and generate a Public and Private key. For domains with multiple
-# servers a single key pair will be used for all servers, so the internet domain (e.g., yourcollege.edu) 
+# servers a single key pair will be used for all servers, so the internet domain (e.g., yourcollege.edu)
 # specified for use with the key should be broad enough to accommodate all servers in the LON-CAPA domain.
-#  
+#
     $output .= '</td></tr>'."\n".
                '<tr><td>'."\n".
                '<span class="LC_nobreak"><span id="'.$context.'_recaptchapubtxt">'.$pubtext.'</span>&nbsp;'."\n".
@@ -4729,7 +4742,7 @@ sub usertype_update_row {
 }
 
 sub modify_login {
-    my ($r,$dom,$confname,%domconfig) = @_;
+    my ($r,$dom,$confname,$lastactref,%domconfig) = @_;
     my ($resulttext,$errors,$colchgtext,%changes,%colchanges,%newfile,%newurl,
         %curr_loginvia,%loginhash,@currlangs,@newlangs,$addedfile,%title,@offon);
     %title = ( coursecatalog => 'Display course catalog',
@@ -4909,7 +4922,7 @@ sub modify_login {
                     } else {
                         my $puberror = &mt("Upload of [_1] failed because an error occurred publishing the file in RES space. Error was: [_2].",$newfile{$lang},$result);
                         $errors .= '<li><span class="LC_error">'.$puberror.'</span></li>';
-                        if ((grep(/^\Q$lang\E$/,@currlangs)) && 
+                        if ((grep(/^\Q$lang\E$/,@currlangs)) &&
                             (!grep(/^\Q$lang\E$/,@delurls))) {
 
                             $loginhash{'login'}{'helpurl'}{$lang} = $domconfig{'login'}{'helpurl'}{$lang};
@@ -4967,6 +4980,7 @@ sub modify_login {
         }
         if (keys(%changes) > 0 || $colchgtext) {
             &Apache::loncommon::devalidate_domconfig_cache($dom);
+            $$lastactref = 'update';
             $resulttext = &mt('Changes made:').'<ul>';
             foreach my $item (sort(keys(%changes))) {
                 if ($item eq 'loginvia') {
@@ -5026,7 +5040,7 @@ sub modify_login {
                     }
                 } elsif ($item eq 'captcha') {
                     if (ref($loginhash{'login'}) eq 'HASH') {
-                        my $chgtxt; 
+                        my $chgtxt;
                         if ($loginhash{'login'}{$item} eq 'notused') {
                             $chgtxt .= &mt('No CAPTCHA validation in use for helpdesk form.');
                         } else {
@@ -5099,7 +5113,7 @@ sub color_font_choices {
 }
 
 sub modify_rolecolors {
-    my ($r,$dom,$confname,$roles,%domconfig) = @_;
+    my ($r,$dom,$confname,$roles,$lastactref,%domconfig) = @_;
     my ($resulttext,%rolehash);
     $rolehash{'rolecolors'} = {};
     if (ref($domconfig{'rolecolors'}) ne 'HASH') {
@@ -5114,6 +5128,7 @@ sub modify_rolecolors {
     if ($putresult eq 'ok') {
         if (keys(%changes) > 0) {
             &Apache::loncommon::devalidate_domconfig_cache($dom);
+            $$lastactref = 'update';
             $resulttext = &display_colorchgs($dom,\%changes,$roles,
                                              $rolehash{'rolecolors'});
         } else {
@@ -5525,7 +5540,7 @@ sub publishlogo {
 # See if there is anything left
     unless ($fname) { return ('error: no uploaded file'); }
     $fname="$subdir/$fname";
-    my $docroot=$r->dir_config('lonDocRoot'); 
+    my $docroot=$r->dir_config('lonDocRoot');
     my $filepath="$docroot/priv";
     my $relpath = "$dom/$confname";
     my ($fnamepath,$file,$fetchthumb);
@@ -5545,7 +5560,7 @@ sub publishlogo {
     if ($file=~/\.(\w+)$/ &&
         (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
         $output = 
-            &mt('Invalid file extension ([_1]) - reserved for LONCAPA use.',$1); 
+            &mt('Invalid file extension ([_1]) - reserved for internal use.',$1); 
     } elsif ($file=~/\.(\w+)$/ &&
         !defined(&Apache::loncommon::fileembstyle($1))) {
         $output = &mt('Unrecognized file extension ([_1]) - rename the file with a proper extension and re-upload.',$1);
@@ -6017,7 +6032,7 @@ sub modify_quotas {
             &Apache::lonnet::do_cache_new('domdefaults',$dom,\%domdefaults,$cachetime);
 
             $resulttext = &mt('Changes made:').'<ul>';
-            unless (($context eq 'requestcourses') || 
+            unless (($context eq 'requestcourses') ||
                     ($context eq 'requestauthor')) {
                 if (ref($changes{'defaultquota'}) eq 'HASH') {
                     $resulttext .= '<li>'.&mt('Portfolio default quotas').'<ul>';
@@ -6051,7 +6066,7 @@ sub modify_quotas {
                 my (%haschgs,%inconf);
                 if ($context eq 'requestauthor') {
                     %haschgs = %changes;
-                    %inconf = %confhash; 
+                    %inconf = %confhash;
                 } else {
                     if (ref($changes{$item}) eq 'HASH') {
                         %haschgs = %{$changes{$item}};
@@ -6065,7 +6080,7 @@ sub modify_quotas {
                         &Apache::lonnet::usertools_access($env{'user.name'},
                                                           $env{'user.domain'},
                                                           $item,'reload',$context);
-                    if (($context eq 'requestcourses') || 
+                    if (($context eq 'requestcourses') ||
                         ($context eq 'requestauthor')) {
                         if ($env{'environment.canrequest.'.$item} ne $newacc) {
                             $newenv{'environment.canrequest.'.$item} = $newacc;
@@ -6158,7 +6173,7 @@ sub modify_quotas {
 }
 
 sub modify_autoenroll {
-    my ($dom,%domconfig) = @_;
+    my ($dom,$lastactref,%domconfig) = @_;
     my ($resulttext,%changes);
     my %currautoenroll;
     if (ref($domconfig{'autoenroll'}) eq 'HASH') {
@@ -6226,6 +6241,7 @@ sub modify_autoenroll {
             if ($changes{'coowners'}) {
                 $resulttext .= '<li>'.&mt("$title{'coowners'} set to $offon[$env{'form.autoassign_coowners'}]").'</li>';
                 &Apache::loncommon::devalidate_domconfig_cache($dom);
+                $$lastactref = 'update';
             }
             $resulttext .= '</ul>';
         } else {
@@ -6631,7 +6647,7 @@ sub modify_directorysrch {
                         } else {
                             $chgtext =~ s/\; $//;
                         }
-                        $resulttext .= 
+                        $resulttext .=
                             '<li>'.
                             &mt("Users from domain '[_1]' permitted to search the institutional directory set to: [_2]",
                                 '<span class="LC_cusr_emph">'.$dom.'</span>',$chgtext).
@@ -6677,7 +6693,7 @@ sub modify_directorysrch {
 }
 
 sub modify_contacts {
-    my ($dom,%domconfig) = @_;
+    my ($dom,$lastactref,%domconfig) = @_;
     my ($resulttext,%currsetting,%newsetting,%changes,%contacts_hash);
     if (ref($domconfig{'contacts'}) eq 'HASH') {
         foreach my $key (keys(%{$domconfig{'contacts'}})) {
@@ -6782,6 +6798,8 @@ sub modify_contacts {
                                              $dom);
     if ($putresult eq 'ok') {
         if (keys(%changes) > 0) {
+            &Apache::loncommon::devalidate_domconfig_cache($dom);
+            $$lastactref = 'update';
             my ($titles,$short_titles)  = &contact_titles();
             $resulttext = &mt('Changes made:').'<ul>';
             foreach my $item (@contacts) {
@@ -7129,7 +7147,7 @@ sub modify_usercreation {
                             if ($captchas{$cancreate{$type}}) {
                                 $chgtext .= &mt("Validation for self-creation screen set to $captchas{$cancreate{$type}}.");
                             } else {
-                                $chgtext .= &mt('Validation for self-creation screen set to unknown type.'); 
+                                $chgtext .= &mt('Validation for self-creation screen set to unknown type.');
                             }
                         }
                     } elsif ($type eq 'recaptchakeys') {
@@ -7257,7 +7275,7 @@ sub process_captcha {
         $newsettings->{'captcha'} = 'original';
     }
     if ($current->{'captcha'} ne $newsettings->{'captcha'}) {
-        if ($container eq 'cancreate') { 
+        if ($container eq 'cancreate') {
             if (ref($changes->{'cancreate'}) eq 'ARRAY') {
                 push(@{$changes->{'cancreate'}},'captcha');
             } elsif (!defined($changes->{'cancreate'})) {
@@ -7296,7 +7314,7 @@ sub process_captcha {
                 $changes->{'cancreate'} = ['recaptchakeys'];
             }
         } else {
-            $changes->{'recaptchakeys'} = 1; 
+            $changes->{'recaptchakeys'} = 1;
         }
     }
     return;
@@ -7539,7 +7557,7 @@ sub modify_defaults {
 }
 
 sub modify_scantron {
-    my ($r,$dom,$confname,%domconfig) = @_;
+    my ($r,$dom,$confname,$lastactref,%domconfig) = @_;
     my ($resulttext,%confhash,%changes,$errors);
     my $custom = 'custom.tab';
     my $default = 'default.tab';
@@ -7600,6 +7618,7 @@ sub modify_scantron {
                 }
                 $resulttext .= '</ul>';
                 &Apache::loncommon::devalidate_domconfig_cache($dom);
+                $$lastactref = 'update';
             } else {
                 $resulttext = &mt('No changes made to bubblesheet format file');
             }
@@ -7990,7 +8009,7 @@ sub modify_helpsettings {
                     $changes{$item} = 1;
                 }
             }
-            if (($env{'form.'.$item} eq '0') || ($env{'form.'.$item} eq '1')) { 
+            if (($env{'form.'.$item} eq '0') || ($env{'form.'.$item} eq '1')) {
                 $helphash{'helpsettings'}{$item} = $env{'form.'.$item};
             }
         }
@@ -8064,7 +8083,7 @@ sub modify_coursedefaults {
         }
         foreach my $item (@numbers) {
             my ($currdef,$newdef);
-            my $newdef = $env{'form.'.$item};
+            $newdef = $env{'form.'.$item};
             if ($item eq 'anonsurvey_threshold') {
                 $currdef = $domconfig{'coursedefaults'}{$item};
                 $newdef =~ s/\D//g;
@@ -8483,7 +8502,7 @@ sub modify_loadbalancing {
         if ($balancer eq '') {
             next;
         }
-        if (!exists($servers{$balancer})) { 
+        if (!exists($servers{$balancer})) {
             if (exists($currbalancer{$balancer})) {
                 push(@{$changes{'delete'}},$balancer);
             }
@@ -8534,14 +8553,14 @@ sub modify_loadbalancing {
             }
         } else {
             if (ref($defaultshash{'loadbalancing'}{$balancer}) eq 'HASH') {
-                foreach my $sparetype (@sparestypes) { 
+                foreach my $sparetype (@sparestypes) {
                     if (ref($defaultshash{'loadbalancing'}{$balancer}{'targets'}{$sparetype}) eq 'ARRAY') {
                         if (@{$defaultshash{'loadbalancing'}{$balancer}{'targets'}{$sparetype}} > 0) {
                             $changes{'curr'}{$balancer}{'targets'} = 1;
                         }
                     }
                 }
-            }  
+            }
         }
         my $ishomedom;
         if (&Apache::lonnet::host_domain($balancer) eq $dom) {
@@ -8550,7 +8569,7 @@ sub modify_loadbalancing {
         if (ref($alltypes) eq 'ARRAY') {
             foreach my $type (@{$alltypes}) {
                 my $rule;
-                unless ((($type eq '_LC_external') || ($type eq '_LC_internetdom')) && 
+                unless ((($type eq '_LC_external') || ($type eq '_LC_internetdom')) &&
                          (!$ishomedom)) {
                     $rule = $env{'form.loadbalancing_rules_'.$i.'_'.$type};
                 }
@@ -8575,7 +8594,6 @@ sub modify_loadbalancing {
         }
         my $putresult = &Apache::lonnet::put_dom('configuration',
                                                  \%defaultshash,$dom);
- 
         if ($putresult eq 'ok') {
             if (keys(%changes) > 0) {
                 if (ref($changes{'delete'}) eq 'ARRAY') {
@@ -8585,7 +8603,7 @@ sub modify_loadbalancing {
                     }
                 }
                 if (ref($changes{'add'}) eq 'ARRAY') {
-                    foreach my $balancer (sort(@{$changes{'add'}})) {   
+                    foreach my $balancer (sort(@{$changes{'add'}})) {
                         $resulttext .= '<li>'.&mt('Load Balancing enabled for: [_1]',$balancer);
                     }
                 }
@@ -8626,12 +8644,13 @@ sub modify_loadbalancing {
                                         my $balancetext;
                                         if ($rule eq '') {
                                             $balancetext =  $ruletitles{'default'};
-                                        } elsif (($rule eq 'homeserver') || ($rule eq 'externalbalancer')) {
+                                        } elsif (($rule eq 'homeserver') || ($rule eq 'externalbalancer') ||
+                                                 ($rule eq 'balancer') || ($rule eq 'offloadedto')) {
                                             $balancetext =  $ruletitles{$rule};
                                         } else {
                                             $balancetext = &mt('offload to [_1]',$defaultshash{'loadbalancing'}{$balancer}{'rules'}{$type});
                                         }
-                                        $resulttext .= '<li>'.&mt('Load Balancer: [_1] -- balancing for [_2] set to - "[_3]"',$balancer,$titles->{$type},$balancetext).'</li>';     
+                                        $resulttext .= '<li>'.&mt('Load Balancer: [_1] -- balancing for [_2] set to - "[_3]"',$balancer,$titles->{$type},$balancetext).'</li>';
                                     }
                                 }
                             }
@@ -8724,7 +8743,7 @@ sub active_dc_picker {
         }
     }
     @domcoord = sort(@domcoord);
-    my $numdcs = scalar(@domcoord); 
+    my $numdcs = scalar(@domcoord);
     my $rows = 0;
     my $table;
     if ($numdcs > 1) {
@@ -8858,7 +8877,7 @@ sub lonbalance_targets_js {
     }
     &get_loadbalancers_config($servers,\%existing,\%currbalancer,
                               \%currtargets,\%currrules);
-    my $balancers = join("','",sort(keys(%currbalancer))); 
+    my $balancers = join("','",sort(keys(%currbalancer)));
     return <<"END";
 
 <script type="text/javascript">
@@ -8929,7 +8948,6 @@ function showSpares(balancer,ishomedom,b
             } else {
                 document.getElementById('balanceruletitle_'+balnum+'_'+insttypes[k]).style.display='none';
                 document.getElementById('balancerule_'+balnum+'_'+insttypes[k]).style.display='none';
-
             }
         } else {
             document.getElementById('balanceruletitle_'+balnum+'_'+insttypes[k]).style.display='block';
@@ -8941,12 +8959,11 @@ function showSpares(balancer,ishomedom,b
             var item = document.getElementById('loadbalancing_singleserver_'+balnum+'_'+insttypes[k]);
             item.options.length = 0;
             item.options[0] = new Option("","",true,true);
-            var idx = 0;  
+            var idx = 0;
             for (var m=0; m<alltargets.length; m++) {
                 if ((currBalancers.indexOf(alltargets[m]) == -1) && (alltargets[m] != balancer)) {
                     idx ++;
                     item.options[idx] = new Option(alltargets[m],alltargets[m],false,false);
-                    
                 }
             }
         }
@@ -9359,4 +9376,20 @@ sub captcha_phrases {
     );
 }
 
+sub devalidate_remote_domconfs {
+    my ($dom) = @_;
+    my $primary_id = &Apache::lonnet::domain($dom,'primary');
+    my $intdom = &Apache::lonnet::internet_dom($primary_id);
+    my %servers = &Apache::lonnet::internet_dom_servers($dom);
+    my %thismachine;
+    map { $thismachine{$_} = 1; } &Apache::lonnet::current_machine_ids();
+    if (keys(%servers) > 1) {
+        foreach my $server (keys(%servers)) {
+            next if ($thismachine{$server});
+            &Apache::lonnet::remote_devalidate_cache($server,'domainconfig',$dom);
+        }
+    }
+    return;
+}
+
 1;