--- loncom/interface/domainprefs.pm	2009/08/23 17:22:54	1.109
+++ loncom/interface/domainprefs.pm	2009/10/06 18:10:25	1.110
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set domain-wide configuration settings
 #
-# $Id: domainprefs.pm,v 1.109 2009/08/23 17:22:54 raeburn Exp $
+# $Id: domainprefs.pm,v 1.110 2009/10/06 18:10:25 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -220,12 +220,13 @@ sub handler {
                                 {col1 => 'Administrator Settings',
                                  col2 => '',}],
                     },
-        'login' =>  
+        'login' =>
                     { text => 'Log-in page options',
                       help => 'Domain_Configuration_Login_Page',
                       header => [{col1 => 'Item',
                                   col2 => '',}],
                     },
+
         'defaults' => 
                     { text => 'Default authentication/language/timezone',
                       help => 'Domain_Configuration_LangTZAuth',
@@ -319,6 +320,16 @@ sub handler {
                             }],
                  },
     );
+    my %servers = &Apache::lonnet::get_servers($dom);
+    if (keys(%servers) > 1) {
+        $prefs{'login'}  = { text   => 'Log-in page options',
+                             help   => 'Domain_Configuration_Login_Page',
+                            header => [{col1 => 'Log-in Service',
+                                        col2 => 'Server Setting',},
+                                       {col1 => 'Log-in Page Items',
+                                        col2 => ''}],
+                           };
+    }
     my @roles = ('student','coordinator','author','admin');
     my @actions = &Apache::loncommon::get_env_multiple('form.actions');
     &Apache::lonhtmlcommon::add_breadcrumb
@@ -423,9 +434,11 @@ sub print_config_box {
            &Apache::loncommon::help_open_topic($item->{'help'}).'</span></th>'."\n".
           '</tr>';
     $rowtotal ++;
-    if (($action eq 'autoupdate') || ($action eq 'rolecolors') || 
-        ($action eq 'usercreation') || ($action eq 'usermodification') ||
-        ($action eq 'coursecategories') || ($action eq 'requestcourses')) {
+    my $numheaders = 1;
+    if (ref($item->{'header'}) eq 'ARRAY') {
+        $numheaders = scalar(@{$item->{'header'}});
+    }
+    if ($numheaders > 1) {
         my $colspan = '';
         if (($action eq 'rolecolors') || ($action eq 'coursecategories')) {
             $colspan = ' colspan="2"';
@@ -447,6 +460,9 @@ sub print_config_box {
             $output .= &print_usermodification('top',$dom,$settings,\$rowtotal);
         } elsif ($action eq 'coursecategories') {
             $output .= &print_coursecategories('top',$dom,$item,$settings,\$rowtotal);
+        } elsif ($action eq 'login') {
+            $output .= &print_login('top',$dom,$confname,$phase,$settings,\$rowtotal);
+            $colspan = ' colspan="2"';
         } elsif ($action eq 'requestcourses') {
             $output .= &print_quotas($dom,$settings,\$rowtotal,$action);
         } else {
@@ -496,6 +512,8 @@ sub print_config_box {
             $rowtotal ++;
         } elsif ($action eq 'coursecategories') {
             $output .= &print_coursecategories('bottom',$dom,$item,$settings,\$rowtotal);
+        } elsif ($action eq 'login') {
+            $output .= &print_login('bottom',$dom,$confname,$phase,$settings,\$rowtotal);
         } elsif ($action eq 'requestcourses') {
             $output .= &print_courserequestmail($dom,$settings,\$rowtotal);
         } else {
@@ -566,7 +584,8 @@ sub print_config_box {
         $output .= '</tr>';
         $rowtotal ++;
         if ($action eq 'login') {
-            $output .= &print_login($dom,$confname,$phase,$settings,\$rowtotal);
+            $output .= &print_login('bottom',$dom,$confname,$phase,$settings,
+                                    \$rowtotal);
         } elsif ($action eq 'quotas') {
             $output .= &print_quotas($dom,$settings,\$rowtotal,$action);
         } elsif ($action eq 'autoenroll') {
@@ -592,8 +611,48 @@ sub print_config_box {
 }
 
 sub print_login {
-    my ($dom,$confname,$phase,$settings,$rowtotal) = @_;
+    my ($position,$dom,$confname,$phase,$settings,$rowtotal) = @_;
+    my ($css_class,$datatable);
     my %choices = &login_choices();
+    my $itemcount = 1;
+
+    if ($position eq 'top') {
+        my %servers = &Apache::lonnet::get_servers($dom);
+        my $choice = $choices{'disallowlogin'};
+        $css_class = ' class="LC_odd_row"';
+        $datatable .= '<tr'.$css_class.'><td>'.$choices{'disallowlogin'}.'</td>'.
+                      '<td align="right"><table><tr><th>'.$choices{'hostid'}.'</th>'.
+                      '<th>'.$choices{'serverurl'}.'</th></tr>'."\n";
+        my %disallowed;
+        if (ref($settings) eq 'HASH') {
+            if (ref($settings->{'loginvia'}) eq 'HASH') {
+               %disallowed = %{$settings->{'loginvia'}};
+            }
+        }
+        foreach my $lonhost (sort(keys(%servers))) {
+            my $direct = 'selected="selected"';
+            if ($disallowed{$lonhost} eq '') {
+                $direct = '';
+            }
+            $datatable .= '<tr><td>'.$lonhost.'</td>'.
+                          '<td><select name="'.$lonhost.'_serverurl">'.
+                          '<option value=""'.$direct.'>'.$choices{'directlogin'}.
+                          '</option>';
+            foreach my $hostid (keys(%servers)) {
+                next if ($hostid eq $lonhost);
+                my $selected = '';
+                if ($hostid eq $disallowed{$lonhost}) {
+                    $selected = 'selected="selected"';
+                }
+                $datatable .= '<option value="'.$hostid.'"'.$selected.'>'.
+                              $servers{$hostid}.'</option>';
+            }
+            $datatable .= '</select></td></tr>';
+        }
+        $datatable .= '</table></td></tr>';
+        return $datatable;
+    }
+
     my %defaultchecked = ( 
                            'coursecatalog' => 'on',
                            'adminmail'     => 'off',
@@ -729,23 +788,27 @@ sub login_choices {
     my %choices =
         &Apache::lonlocal::texthash (
             coursecatalog => 'Display Course Catalog link?',
-            adminmail => "Display Administrator's E-mail Address?",
-            newuser   => "Link to create a user account",
-            img => "Header",
-            logo => "Main Logo",
-            domlogo => "Domain Logo",
-            login => "Log-in Header", 
-            textcol => "Text color",
-            bgcol   => "Box color",
-            bgs => "Background colors",
-            links => "Link colors",
-            font => "Font color",
-            pgbg => "Header",
-            mainbg => "Page",
-            sidebg => "Login box",
-            link => "Link",
-            alink => "Active link",
-            vlink => "Visited link",
+            adminmail     => "Display Administrator's E-mail Address?",
+            disallowlogin => "Login page requests redirected",
+            hostid        => "Server",
+            serverurl     => "Redirect to log-in via:",
+            directlogin   => "No redirect",
+            newuser       => "Link to create a user account",
+            img           => "Header",
+            logo          => "Main Logo",
+            domlogo       => "Domain Logo",
+            login         => "Log-in Header", 
+            textcol       => "Text color",
+            bgcol         => "Box color",
+            bgs           => "Background colors",
+            links         => "Link colors",
+            font          => "Font color",
+            pgbg          => "Header",
+            mainbg        => "Page",
+            sidebg        => "Login box",
+            link          => "Link",
+            alink         => "Active link",
+            vlink         => "Visited link",
         );
     return %choices;
 }
@@ -3088,6 +3151,18 @@ sub modify_login {
         $colchgtext = &display_colorchgs($dom,\%colchanges,['login'],
                                          \%loginhash);
     }
+
+    my %servers = &Apache::lonnet::get_servers($dom);
+    if (keys(%servers) > 1) {
+        foreach my $lonhost (keys(%servers)) {
+            if ($env{'form.'.$lonhost.'_serverurl'} ne '') {
+                if (defined($servers{$env{'form.'.$lonhost.'_serverurl'}})) {
+                    $loginhash{login}{loginvia}{$lonhost} = $env{'form.'.$lonhost.'_serverurl'};
+                }
+            }
+        }
+    }
+    
     my $putresult = &Apache::lonnet::put_dom('configuration',\%loginhash,
                                              $dom);
     if ($putresult eq 'ok') {