--- loncom/Lond.pm 2022/02/01 23:13:21 1.18 +++ loncom/Lond.pm 2022/02/14 02:48:49 1.19 @@ -1,6 +1,6 @@ # The LearningOnline Network # -# $Id: Lond.pm,v 1.18 2022/02/01 23:13:21 raeburn Exp $ +# $Id: Lond.pm,v 1.19 2022/02/14 02:48:49 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -1039,6 +1039,56 @@ sub get_dom { } $qresult=~s/\&$//; } + &untie_user_hash($hashref) or + return "error: ".($!+0)." untie(GDBM) Failed while attempting $cmd"; + return $qresult; +} + +sub store_dom { + my ($userinput) = @_; + my ($cmd,$dom,$namespace,$rid,$what) =split(/:/,$userinput); + my $hashref = &tie_domain_hash($dom,$namespace,&GDBM_WRCREAT(),"S","$rid:$what") or + return "error: ".($!+0)." tie(GDBM) Failed while attempting $cmd"; + $hashref->{"version:$rid"}++; + my $version=$hashref->{"version:$rid"}; + my $allkeys=''; + my @pairs=split(/\&/,$what); + foreach my $pair (@pairs) { + my ($key,$value)=split(/=/,$pair); + $allkeys.=$key.':'; + $hashref->{"$version:$rid:$key"}=$value; + } + my $now = time; + $hashref->{"$version:$rid:timestamp"}=$now; + $allkeys.='timestamp'; + $hashref->{"$version:keys:$rid"}=$allkeys; + &untie_user_hash($hashref) or + return "error: ".($!+0)." untie(GDBM) Failed while attempting $cmd"; + return 'ok'; +} + +sub restore_dom { + my ($userinput) = @_; + my ($cmd,$dom,$namespace,$rid) = split(/:/,$userinput); + my $hashref = &tie_domain_hash($dom,$namespace,&GDBM_READER()) or + return "error: ".($!+0)." tie(GDBM) Failed while attempting $cmd"; + my $qresult=''; + if (ref($hashref)) { + chomp($rid); + my $version=$hashref->{"version:$rid"}; + $qresult.="version=$version&"; + my $scope; + for ($scope=1;$scope<=$version;$scope++) { + my $vkeys=$hashref->{"$scope:keys:$rid"}; + my @keys=split(/:/,$vkeys); + my $key; + $qresult.="$scope:keys=$vkeys&"; + foreach $key (@keys) { + $qresult.="$scope:$key=".$hashref->{"$scope:$rid:$key"}."&"; + } + } + $qresult=~s/\&$//; + } &untie_user_hash($hashref) or return "error: ".($!+0)." untie(GDBM) Failed while attempting $cmd"; return $qresult; 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.