--- loncom/lond 2020/05/04 17:05:10 1.562
+++ loncom/lond 2021/03/31 02:19:58 1.566
@@ -2,7 +2,7 @@
# The LearningOnline Network
# lond "LON Daemon" Server (port "LOND" 5663)
#
-# $Id: lond,v 1.562 2020/05/04 17:05:10 raeburn Exp $
+# $Id: lond,v 1.566 2021/03/31 02:19:58 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -65,7 +65,7 @@ my $DEBUG = 0; # Non zero to ena
my $status='';
my $lastlog='';
-my $VERSION='$Revision: 1.562 $'; #' stupid emacs
+my $VERSION='$Revision: 1.566 $'; #' stupid emacs
my $remoteVERSION;
my $currenthostid="default";
my $currentdomainid;
@@ -213,6 +213,7 @@ my %trust = (
autovalidateclass_sec => {catalog => 1},
autovalidatecourse => {remote => 1, enroll => 1},
autovalidateinstcode => {domroles => 1, remote => 1, enroll => 1},
+ autovalidateinstcrosslist => {remote => 1, enroll => 1},
changeuserauth => {remote => 1, domroles => 1},
chatretr => {remote => 1, enroll => 1},
chatsend => {remote => 1, enroll => 1},
@@ -310,6 +311,7 @@ my %trust = (
tokenauthuserfile => {anywhere => 1},
unsub => {content => 1,},
update => {shared => 1},
+ updatebalcookie => {institutiononly => 1},
updateclickers => {remote => 1},
userhassession => {anywhere => 1},
userload => {anywhere => 1},
@@ -4891,11 +4893,10 @@ sub course_sessions_handler {
my ($uname,$udom) = ($1,$2);
next unless (-e "$perlvar{'lonDaemons'}/tmp/$uname$dbsuffix");
my $mtime = (stat("$perlvar{'lonIDsDir'}/$filename"))[9];
- my $since=$now-$mtime;
if ($lastactivity < 0) {
- next if ($since <= $lastactivity);
+ next if ($mtime-$now > $lastactivity);
} else {
- next if ($since > $lastactivity);
+ next if ($now-$mtime > $lastactivity);
}
$sessions{$uname.':'.$udom} = $mtime;
}
@@ -5077,7 +5078,7 @@ sub del_domain_handler {
# domain directory.
#
# Parameters:
-# $cmd - Command request keyword (get).
+# $cmd - Command request keyword (getdom).
# $tail - Tail of the command. This is a colon separated list
# consisting of the domain and the 'namespace'
# which selects the gdbm file to do the lookup in,
@@ -5094,31 +5095,17 @@ sub del_domain_handler {
sub get_domain_handler {
my ($cmd, $tail, $client) = @_;
-
my $userinput = "$cmd:$tail";
my ($udom,$namespace,$what)=split(/:/,$tail,3);
- chomp($what);
if ($namespace =~ /^enc/) {
&Failure( $client, "refused\n", $userinput);
} else {
- my @queries=split(/\&/,$what);
- my $qresult='';
- my $hashref = &tie_domain_hash($udom, "$namespace", &GDBM_READER());
- if ($hashref) {
- for (my $i=0;$i<=$#queries;$i++) {
- $qresult.="$hashref->{$queries[$i]}&";
- }
- if (&untie_domain_hash($hashref)) {
- $qresult=~s/\&$//;
- &Reply($client, \$qresult, $userinput);
- } else {
- &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting getdom\n",$userinput);
- }
+ my $res = LONCAPA::Lond::get_dom($userinput);
+ if ($res =~ /^error:/) {
+ &Failure($client, \$res, $userinput);
} else {
- &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting getdom\n",$userinput);
+ &Reply($client, \$res, $userinput);
}
}
@@ -5131,38 +5118,24 @@ sub encrypted_get_domain_handler {
my $userinput = "$cmd:$tail";
- my ($udom,$namespace,$what)=split(/:/,$tail,3);
- chomp($what);
- my @queries=split(/\&/,$what);
- my $qresult='';
- my $hashref = &tie_domain_hash($udom, "$namespace", &GDBM_READER());
- if ($hashref) {
- for (my $i=0;$i<=$#queries;$i++) {
- $qresult.="$hashref->{$queries[$i]}&";
- }
- if (&untie_domain_hash($hashref)) {
- $qresult=~s/\&$//;
- if ($cipher) {
- my $cmdlength=length($qresult);
- $qresult.=" ";
- my $encqresult='';
- for (my $encidx=0;$encidx<=$cmdlength;$encidx+=8) {
- $encqresult.= unpack("H16",
- $cipher->encrypt(substr($qresult,
- $encidx,
- 8)));
- }
- &Reply( $client, "enc:$cmdlength:$encqresult\n", $userinput);
- } else {
- &Failure( $client, "error:no_key\n", $userinput);
+ my $res = LONCAPA::Lond::get_dom($userinput);
+ if ($res =~ /^error:/) {
+ &Failure($client, \$res, $userinput);
+ } else {
+ if ($cipher) {
+ my $cmdlength=length($res);
+ $res.=" ";
+ my $encres='';
+ for (my $encidx=0;$encidx<=$cmdlength;$encidx+=8) {
+ $encres.= unpack("H16",
+ $cipher->encrypt(substr($res,
+ $encidx,
+ 8)));
}
+ &Reply( $client,"enc:$cmdlength:$encres\n",$userinput);
} else {
- &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting egetdom\n",$userinput);
+ &Failure( $client, "error:no_key\n",$userinput);
}
- } else {
- &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting egetdom\n",$userinput);
}
return 1;
}
@@ -5684,8 +5657,65 @@ sub tmp_del_handler {
®ister_handler("tmpdel", \&tmp_del_handler, 0, 1, 0);
#
+# Process the updatebalcookie command. This command updates a
+# cookie in the lonBalancedir directory on a load balancer node.
+#
+# Parameters:
+# $cmd - Command that got us here.
+# $tail - Tail of the request (escaped cookie: escaped current entry)
+#
+# $client - socket open on the client process.
+#
+# Returns:
+# 1 - Indicating processing should continue.
+# Side Effects:
+# A cookie file is updated from the lonBalancedir directory
+# A reply is sent to the client.
+#
+sub update_balcookie_handler {
+ my ($cmd, $tail, $client) = @_;
+
+ my $userinput= "$cmd:$tail";
+ chomp($tail);
+ my ($cookie,$lastentry) = map { &unescape($_) } (split(/:/,$tail));
+
+ my $updatedone;
+ if ($cookie =~ /^$LONCAPA::match_domain\_$LONCAPA::match_username\_[a-f0-9]{32}$/) {
+ my $execdir=$perlvar{'lonBalanceDir'};
+ if (-e "$execdir/$cookie.id") {
+ my $doupdate;
+ if (open(my $fh,'<',"$execdir/$cookie.id")) {
+ while (my $line = <$fh>) {
+ chomp($line);
+ if ($line eq $lastentry) {
+ $doupdate = 1;
+ last;
+ }
+ }
+ close($fh);
+ }
+ if ($doupdate) {
+ if (open(my $fh,'>',"$execdir/$cookie.id")) {
+ print $fh $clientname;
+ close($fh);
+ $updatedone = 1;
+ }
+ }
+ }
+ }
+ if ($updatedone) {
+ &Reply($client, "ok\n", $userinput);
+ } else {
+ &Failure( $client, "error: ".($!+0)."file update failed ".
+ "while attempting updatebalcookie\n", $userinput);
+ }
+ return 1;
+}
+®ister_handler("updatebalcookie", \&update_balcookie_handler, 0, 1, 0);
+
+#
# Process the delbalcookie command. This command deletes a balancer
-# cookie in the lonBalancedir directory created by switchserver
+# cookie in the lonBalancedir directory on a load balancer node.
#
# Parameters:
# $cmd - Command that got us here.
@@ -5703,6 +5733,7 @@ sub del_balcookie_handler {
my $userinput= "$cmd:$cookie";
chomp($cookie);
+ $cookie = &unescape($cookie);
my $deleted = '';
if ($cookie =~ /^$LONCAPA::match_domain\_$LONCAPA::match_username\_[a-f0-9]{32}$/) {
my $execdir=$perlvar{'lonBalanceDir'};
@@ -5918,6 +5949,39 @@ sub validate_instcode_handler {
}
®ister_handler("autovalidateinstcode", \&validate_instcode_handler, 0, 1, 0);
+#
+# Validate co-owner for cross-listed institutional code and
+# institutional course code itself used for a LON-CAPA course.
+#
+# Formal Parameters:
+# $cmd - The command request that got us dispatched.
+# $tail - The tail of the command. In this case,
+# this is a colon separated string containing:
+# $dom - Course's LON-CAPA domain
+# $instcode - Institutional course code for the course
+# $inst_xlist - Institutional course Id for the crosslisting
+# $coowner - Username of co-owner
+# (values for all but $dom have been escaped).
+#
+# $client - Socket open on the client.
+# Returns:
+# 1 - Indicating processing should continue.
+#
+sub validate_instcrosslist_handler {
+ my ($cmd, $tail, $client) = @_;
+ my $userinput = "$cmd:$tail";
+ my ($dom,$instcode,$inst_xlist,$coowner) = split(/:/,$tail);
+ $instcode = &unescape($instcode);
+ $inst_xlist = &unescape($inst_xlist);
+ $coowner = &unescape($coowner);
+ my $outcome = &localenroll::validate_crosslist_access($dom,$instcode,
+ $inst_xlist,$coowner);
+ &Reply($client, \$outcome, $userinput);
+
+ return 1;
+}
+®ister_handler("autovalidateinstcrosslist", \&validate_instcrosslist_handler, 0, 1, 0);
+
# Get the official sections for which auto-enrollment is possible.
# Since the admin people won't know about 'unofficial sections'
# we cannot auto-enroll on them.
500 Internal Server Error
Internal Server Error
The server encountered an internal error or
misconfiguration and was unable to complete
your request.
Please contact the server administrator at
root@localhost to inform them of the time this error occurred,
and the actions you performed just before this error.
More information about this error may be available
in the server error log.