mourningdove/cgi-bin/LJ/OpenID/Cache.pm

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2026-05-24 01:03:05 +00:00
# This code was forked from the LiveJournal project owned and operated
# by Live Journal, Inc. The code has been modified and expanded by
# Dreamwidth Studios, LLC. These files were originally licensed under
# the terms of the license supplied by Live Journal, Inc, which can
# currently be found at:
#
# http://code.livejournal.org/trac/livejournal/browser/trunk/LICENSE-LiveJournal.txt
#
# In accordance with the original license, this code and all its
# modifications are provided under the GNU General Public License.
# A copy of that license can be found in the LICENSE file included as
# part of this distribution.
package LJ::OpenID::Cache;
use strict;
my $important = qr/^(?:hassoc|shandle):/;
sub new {
my $class = shift;
return bless { memc => LJ::MemCache::get_memcache(), }, $class;
}
sub get {
my ( $self, $key ) = @_;
# try memcached first.
my $val = $self->{memc}->get($key);
return $val if $val;
# important keys, on miss, try the database.
if ( $key =~ /$important/ ) {
my $dbh = LJ::get_db_writer();
$val = $dbh->selectrow_array( "SELECT value FROM blobcache WHERE bckey=?", undef, $key )
or return undef;
# put it back in memcache.
my $rv = $self->{memc}->set( $key, $val );
return $val;
}
return undef;
}
sub set {
my ( $self, $key, $val ) = @_;
# important keys go to the database
if ( $key =~ /$important/ ) {
my $dbh = LJ::get_db_writer();
$dbh->do( "REPLACE INTO blobcache SET bckey=?, dateupdate=NOW(), value=?",
undef, $key, $val );
}
# everything goes in memcache.
$self->{memc}->set( $key, $val );
}
1;