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package Apache::Session::Serialize::Hstore;
use strict;
use JSON qw(to_json from_json);
our $VERSION = '1.2.5';
sub serialize {
my ($session) = @_;
$session->{serialized} = {};
my $data = $session->{data};
my $res = '';
if ( ref $data and %$data ) {
foreach ( keys %$data ) {
my $v;
if ( ref $data->{$_} ) {
$v = '_json://' . to_json( $data->{$_} );
}
else {
$v = $data->{$_};
}
$v =~ s/"/#%22/g;
$res .= qq'"$_" => "$v",';
}
}
$res =~ s/,$//;
$session->{serialized} = $res;
}
sub unserialize {
my ($session) = @_;
my $data = _unserialize( $session->{serialized} );
die "Session could not be unserialized" unless defined $data;
$session->{data} = $data;
}
sub _unserialize {
my ( $serialized, $next ) = @_;
my $res = {};
while ( $serialized =~ s/\s*"([^"]*)"\s*=>\s*"([^"]*)"\s*,?// ) {
my ( $k, $v ) = ( $1, $2 );
$v =~ s/#%22/"/g;
if ( $v =~ s#^_json://## ) {
my $tmp;
eval { $tmp = from_json($v) };
if ($@) {
print STDERR "JSON error: $@\n";
return undef;
}
$v = $tmp;
}
$res->{$k} = $v;
}
return $res;
}
1;
=pod
=head1 NAME
=encoding utf8
Apache::Session::Serialize::Hstore - Serialize/unserialize datas for PostgreSQL
"hstore" storage.
=head1 SYNOPSIS
use Apache::Session::Serialize::Hstore;
$zipped = Apache::Session::Serialize::Hstore::serialize($ref);
$ref = Apache::Session::Serialize::Hstore::unserialize($zipped);
=head1 DESCRIPTION
This module fulfills the serialization interface of Apache::Session.
It serializes only ref data value for PostgreSQL "hstore" fields.
=head1 SEE ALSO
L<JSON>, L<Apache::Session>
=head1 AUTHORS
=over
=item Clement Oudot, E<lt>clem.oudot@gmail.comE<gt>
=item François-Xavier Deltombe, E<lt>fxdeltombe@gmail.com.E<gt>
=item Xavier Guimard, E<lt>x.guimard@free.frE<gt>
=item Thomas Chemineau, E<lt>thomas.chemineau@gmail.comE<gt>
=back
=head1 BUG REPORT
Use OW2 system to report bug or ask for features:
L<http://jira.ow2.org>
=head1 COPYRIGHT AND LICENSE
=over
=item Copyright (C) 2015-2017 by Clément Oudot, E<lt>clem.oudot@gmail.comE<gt>
=item Copyright (C) 2015-2017 by Xavier Guimard, E<lt>x.guimard@free.frE<gt>
=back
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see L<http://www.gnu.org/licenses/>.
=cut
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