mourningdove/cgi-bin/DW/Controller/VGift.pm

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2026-05-24 01:03:05 +00:00
#!/usr/bin/perl
#
# DW::Controller::VGift
#
# Serves virtual gift image data. Replaces the Apache::LiveJournal vgift handler
# for use under both Plack and mod_perl via DW::Routing.
#
# Authors:
# Mark Smith <mark@dreamwidth.org>
#
# Copyright (c) 2026 by Dreamwidth Studios, LLC.
#
# This program is free software; you may redistribute it and/or modify it under
# the same terms as Perl itself. For a copy of the license, please reference
# 'perldoc perlartistic' or 'perldoc perlgpl'.
#
package DW::Controller::VGift;
use strict;
use v5.10;
use Log::Log4perl;
my $log = Log::Log4perl->get_logger(__PACKAGE__);
use DW::BlobStore;
use DW::Request;
use DW::Routing;
use DW::VirtualGift;
DW::Routing->register_regex( qr!^/vgift/(\d+)/(small|large)$!, \&vgift_handler, app => 1 );
sub vgift_handler {
my ($opts) = @_;
my $r = DW::Request->get;
my ( $picid, $picsize ) = @{ $opts->subpatterns };
# IMS is valid unless the request is coming from the admin interface
my $referer = $r->header_in('Referer') || '';
if ( $r->header_in('If-Modified-Since') && $referer !~ m!^\Q$LJ::SITEROOT\E/admin/! ) {
$r->status(304);
return $r->OK;
}
my $vg = DW::VirtualGift->new($picid);
my $mime = $vg->mime_type($picsize)
or return $r->NOT_FOUND;
my $key = $vg->img_mogkey($picsize);
my $data = DW::BlobStore->retrieve( vgifts => $key )
or return $r->NOT_FOUND;
$r->content_type($mime);
$r->header_out( 'Content-Length' => length $$data );
$r->header_out( 'Cache-Control' => 'no-transform' );
$r->print($$data);
return $r->OK;
}
1;