--- loncom/lonnet/perl/lonnet.pm	2022/09/13 02:32:58	1.1490
+++ loncom/lonnet/perl/lonnet.pm	2022/10/07 12:53:32	1.1493
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.1490 2022/09/13 02:32:58 raeburn Exp $
+# $Id: lonnet.pm,v 1.1493 2022/10/07 12:53:32 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1378,6 +1378,29 @@ sub authenticate {
     return 'no_host';
 }
 
+sub can_switchserver {
+    my ($udom,$home) = @_;
+    my ($canswitch,@intdoms);
+    my $internet_names = &get_internet_names($home);
+    if (ref($internet_names) eq 'ARRAY') {
+        @intdoms = @{$internet_names};
+    }
+    my $uint_dom = &internet_dom(&domain($udom,'primary'));
+    if ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) {
+        $canswitch = 1;
+    } else {
+         my $serverhomeID = &get_server_homeID(&hostname($home));
+         my $serverhomedom = &host_domain($serverhomeID);
+         my %defdomdefaults = &get_domain_defaults($serverhomedom);
+         my %udomdefaults = &get_domain_defaults($udom);
+         my $remoterev = &get_server_loncaparev('',$home);
+         $canswitch = &can_host_session($udom,$home,$remoterev,
+                                        $udomdefaults{'remotesessions'},
+                                        $defdomdefaults{'hostedsessions'});
+    }
+    return $canswitch;
+}
+
 sub can_host_session {
     my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_;
     my $canhost = 1;
@@ -2684,6 +2707,8 @@ sub get_domain_defaults {
         $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
         $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
         $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};
+        $domdefaults{'portal_def_email'} = $domconfig{'defaults'}{'portal_def_email'};
+        $domdefaults{'portal_def_web'} = $domconfig{'defaults'}{'portal_def_web'};
         $domdefaults{'intauth_cost'} = $domconfig{'defaults'}{'intauth_cost'};
         $domdefaults{'intauth_switch'} = $domconfig{'defaults'}{'intauth_switch'};
         $domdefaults{'intauth_check'} = $domconfig{'defaults'}{'intauth_check'};
@@ -2944,6 +2969,26 @@ sub course_portal_url {
     return $firsturl;
 }
 
+sub url_prefix {
+    my ($r,$dom,$home,$context) = @_;
+    my $prefix;
+    my %domdefs = &get_domain_defaults($dom);
+    if ($domdefs{'portal_def'} && $domdefs{'portal_def_'.$context}) {
+        if ($domdefs{'portal_def'} =~ m{^(https?://[^/]+)}) {
+            $prefix = $1;
+        }
+    }
+    if ($prefix eq '') {
+        my $hostname = &hostname($home);
+        my $protocol = $protocol{$home};
+        $protocol = 'http' if ($protocol{$home} ne 'https');
+        my $alias = &use_proxy_alias($r,$home);
+        $hostname = $alias if ($alias ne '');
+        $prefix = $protocol.'://'.$hostname;
+    }
+    return $prefix;
+}
+
 # --------------------------------------------- Get domain config for passwords
 
 sub get_passwdconf {
@@ -12371,7 +12416,6 @@ sub courselti_itemid {
     $chome = &homeserver($cnum,$cdom);
     return if ($chome eq 'no_host');
     if (ref($params) eq 'HASH') {
-        my $items = &freeze_escape($params);
         my $rep;
         if (grep { $_ eq $chome } current_machine_ids()) {
             $rep = LONCAPA::Lond::crslti_itemid($cdom,$cnum,$url,$method,$params,$perlvar{'lonVersion'});
@@ -12395,7 +12439,6 @@ sub domainlti_itemid {
     $primary_id = &domain($cdom,'primary');
     return if ($primary_id eq '');
     if (ref($params) eq 'HASH') {
-        my $items = &freeze_escape($params);
         my $rep;
         if (grep { $_ eq $primary_id } current_machine_ids()) {
             $rep = LONCAPA::Lond::domlti_itemid($cdom,$context,$url,$method,$params,$perlvar{'lonVersion'});