--- loncom/lonnet/perl/lonnet.pm	2018/08/07 17:12:25	1.1380
+++ loncom/lonnet/perl/lonnet.pm	2018/11/01 04:33:11	1.1387
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.1380 2018/08/07 17:12:25 raeburn Exp $
+# $Id: lonnet.pm,v 1.1387 2018/11/01 04:33:11 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -230,12 +230,19 @@ sub get_server_distarch {
 }
 
 sub get_servercerts_info {
-    my ($lonhost,$context) = @_;
+    my ($lonhost,$hostname,$context) = @_;
+    return if ($lonhost eq '');
+    if ($hostname eq '') {
+        $hostname = &hostname($lonhost);
+    }
+    return if ($hostname eq '');
     my ($rep,$uselocal);
-    if (grep { $_ eq $lonhost } &current_machine_ids()) {
+    if (context eq 'install') {
+        $uselocal = 1;
+    } elsif (grep { $_ eq $lonhost } &current_machine_ids()) {
         $uselocal = 1;
     }
-    if (($context ne 'cgi') && ($uselocal)) {
+    if (($context ne 'cgi') && ($context ne 'install') && ($uselocal)) {
         my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0];
         if ($distro eq '') {
             $uselocal = 0;
@@ -250,16 +257,11 @@ sub get_servercerts_info {
         }
     }
     if ($uselocal) {
-        $rep = LONCAPA::Lond::server_certs(\%perlvar);
+        $rep = LONCAPA::Lond::server_certs(\%perlvar,$lonhost,$hostname);
     } else {
         $rep=&reply('servercerts',$lonhost);
     }
     my ($result,%returnhash);
-    if (defined($lonhost)) {
-        if (!defined(&hostname($lonhost))) {
-            return;
-        }
-    }
     if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
         ($rep eq 'unknown_cmd')) {
         $result = $rep;
@@ -3197,7 +3199,17 @@ sub ssi {
 
     $request->header(Cookie => $ENV{'HTTP_COOKIE'});
     my $lonhost = $perlvar{'lonHostID'};
-    my $response= &LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar);
+    my $islocal;
+    if (($env{'request.course.id'}) &&
+        ($form{'grade_courseid'} eq $env{'request.course.id'}) &&
+        ($form{'grade_username'} ne '') && ($form{'grade_domain'} ne '') &&
+        ($form{'grade_symb'} ne '') &&
+        (&Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
+                                 ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
+        $islocal = 1;
+    }
+    my $response= &LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,
+                                                '','','',$islocal);
 
     if (wantarray) {
 	return ($response->content, $response);
@@ -5231,7 +5243,12 @@ sub set_first_access {
     }
     $cachedkey='';
     my $firstaccess=&get_first_access($type,$symb,$map);
-    if (!$firstaccess) {
+    if ($firstaccess) {
+        &logthis("First access time already set ($firstaccess) when attempting ".
+                 "to set new value (type: $type, extent: $res) for $uname:$udom ". 
+                 "in $courseid"); 
+        return 'already_set';
+    } else {
         my $start = time;
 	my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},
                           $udom,$uname);
@@ -5247,6 +5264,9 @@ sub set_first_access {
             if (($cachedtime) && (abs($start-$cachedtime) < 5)) {
                 $cachedtimes{"$courseid\0$res"} = $start;
             }
+        } elsif ($putres ne 'refused') {
+            &logthis("Result: $putres when attempting to set first access time ".
+                     "(type: $type, extent: $res) for $uname:$udom in $courseid");
         }
         return $putres;
     }
@@ -10041,12 +10061,25 @@ sub is_course {
     my ($cdom, $cnum) = scalar(@_) == 1 ? 
          ($_[0] =~ /^($match_domain)_($match_courseid)$/)  :  @_;
 
-    return unless $cdom and $cnum;
-
-    my %courses = &courseiddump($cdom, '.', 1, '.', '.', $cnum, undef, undef,
-        '.');
-
-    return unless(exists($courses{$cdom.'_'.$cnum}));
+    return unless (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/));
+    my $uhome=&homeserver($cnum,$cdom);
+    my $iscourse;
+    if (grep { $_ eq $uhome } current_machine_ids()) {
+        $iscourse = &LONCAPA::Lond::is_course($cdom,$cnum);
+    } else {
+        my $hashid = $cdom.':'.$cnum;
+        ($iscourse,my $cached) = &is_cached_new('iscourse',$hashid);
+        unless (defined($cached)) {
+            my %courses = &courseiddump($cdom, '.', 1, '.', '.',
+                                        $cnum,undef,undef,'.');
+            $iscourse = 0;
+            if (exists($courses{$cdom.'_'.$cnum})) {
+                $iscourse = 1;
+            }
+            &do_cache_new('iscourse',$hashid,$iscourse,3600);
+        }
+    }
+    return unless ($iscourse);
     return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
 }