--- loncom/auth/migrateuser.pm	2022/01/01 17:00:40	1.25.2.5.2.1
+++ loncom/auth/migrateuser.pm	2022/02/07 12:05:05	1.25.2.5.2.2
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Starts a user off based of an existing token.
 #
-# $Id: migrateuser.pm,v 1.25.2.5.2.1 2022/01/01 17:00:40 raeburn Exp $
+# $Id: migrateuser.pm,v 1.25.2.5.2.2 2022/02/07 12:05:05 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -35,6 +35,7 @@ use Apache::lonauth;
 use Apache::lonnet;
 use Apache::lonlocal;
 use Apache::lonlogin();
+use CGI::Cookie;
 
 sub goto_login {
     my ($r,$domain) = @_;
@@ -214,6 +215,73 @@ sub ip_changed {
     return OK;
 }
 
+sub logout {
+    my ($r,$ip,$handle,$data,$lti_env) = @_;
+    my $lonidsdir=$r->dir_config('lonIDsDir');
+    if (unlink("$lonidsdir/$handle.id")) {
+        if (($env{'user.linkedenv'} =~ /^[a-f0-9]+_linked$/) &&
+            (-l "$lonidsdir/$env{'user.linkedenv'}.id") &&
+            (readlink("$lonidsdir/$env{'user.linkedenv'}.id") eq "$lonidsdir/$handle.id")) {
+            unlink("$lonidsdir/$env{'user.linkedenv'}.id");
+        }
+    }
+    my %temp=('logout' => time);
+    &Apache::lonnet::put('email_status',\%temp);
+    &Apache::lonnet::log($env{'user.domain'},
+                         $env{'user.name'},
+                         $env{'user.home'},
+                         "Logout $ip");
+
+    &Apache::loncommon::content_type($r,'text/html');
+
+    #expire the cookies
+    my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
+    foreach my $name (keys(%cookies)) {
+        next unless ($name =~ /^lon(|S|Link|Pub)ID$/);
+        my $c = new CGI::Cookie(-name    => $name,
+                                -value   => '',
+                                -expires => '-10y',);
+        $r->headers_out->add('Set-cookie' => $c);
+    }
+    my (%info,%user_info,%lti_info);
+    if (ref($lti_env) eq 'HASH') {
+        foreach my $key (sort(keys(%{$lti_env}))) {
+            if ($key =~ /^request\.(.+)$/) {
+                $lti_info{$1} = $lti_env->{$key};
+            }
+        }
+    }
+    my $lonhost = $r->dir_config('lonHostID');
+    if (ref($data) eq 'HASH') {
+        %user_info=('ip'       => $ip,
+                    'domain'   => $data->{'domain'},
+                    'username' => $data->{'username'},
+                    'home'     => $data->{'home'},
+                    'role'     => $data->{'role'},
+                    'origurl'  => $data->{'origurl'},
+                    'symb'     => $data->{'symb'},
+                    'server'   => $lonhost);
+    }
+    %info = (%user_info,%lti_info);
+    my $token = &Apache::lonnet::tmpput(\%info,$lonhost);
+    my $url = '/adm/migrateuser?token='.$token;
+    $r->send_http_header;
+    $r->print(
+        &Apache::loncommon::start_page('Updating Session ...',undef,
+                                       {'redirect'       => [0.1,$url],
+                                        'only_body'      => 1,}).
+        &Apache::loncommon::end_page());
+    if ($env{'request.balancercookie'}) {
+        my ($balancer,$cookie) = split(/:/,$env{'request.balancercookie'});
+        if ((&Apache::lonnet::hostname($balancer)) && ($cookie =~ /^[a-f0-9]{32}$/)) {
+            $cookie = $env{'user.domain'}.'_'.$env{'user.name'}.'_'.$cookie;
+            &Apache::lonnet::delbalcookie($cookie,$balancer);
+        }
+    }
+    $r->register_cleanup(\&flush_course_logs);
+    return;
+}
+
 sub handler {
     my ($r) = @_;
 
@@ -324,6 +392,17 @@ sub handler {
                 }
             }
             if ($data{'linkprot'} ne '') {
+                if (($env{'user.name'} ne $data{'username'}) ||
+                    ($env{'user.domain'} ne $data{'domain'})) {
+                    my %linkprot_env;
+                    foreach my $item ('linkprot','deeplink.login') {
+                        if ($data{$item}) {
+                            $linkprot_env{'request.'.$item} = $data{$item};
+                        }
+                    }
+                    &logout($r,$ip,$handle,\%data,\%linkprot_env);
+                    return OK;
+                }
                 &Apache::lonnet::appenv({'request.linkprot' => $data{'linkprot'}});
                 if ($env{'request.linkkey'}) {
                     &Apache::lonnet::delenv('request.linkkey');