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

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2026-05-24 01:03:05 +00:00
#!/usr/bin/perl
#
# DW::Controller::Userpic
#
# Serves userpic image data. Replaces the Apache::LiveJournal userpic handler
# for use under both Plack and mod_perl via DW::Routing.
#
# Authors:
# Mark Smith <mark@dreamwidth.org>
#
# Copyright (c) 2025 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::Userpic;
use strict;
use v5.10;
use Log::Log4perl;
my $log = Log::Log4perl->get_logger(__PACKAGE__);
use DW::Routing;
use DW::Request;
use LJ::Userpic;
DW::Routing->register_regex( qr!^/userpic/(\d+)/(\d+)$!, \&userpic_handler, app => 1 );
sub userpic_handler {
my ($opts) = @_;
my $r = DW::Request->get;
my ( $picid, $userid ) = @{ $opts->subpatterns };
# We can safely return 304 without checking since we never re-use
# picture IDs and don't let the contents get modified
if ( $r->header_in('If-Modified-Since') ) {
$r->status(304);
return $r->OK;
}
# Load the user object and pic and make sure the picture is viewable
my $u = LJ::load_userid($userid);
my $pic = LJ::Userpic->get( $u, $picid, { no_expunged => 1 } )
or return $r->NOT_FOUND;
# Must have contents by now, or return 404
my $data = $pic->imagedata
or return $r->NOT_FOUND;
# Everything looks good, send it
$r->content_type( $pic->mimetype );
$r->header_out( 'Content-Length' => length $data );
$r->header_out( 'Cache-Control' => 'no-transform' );
$r->header_out( 'Last-Modified' => LJ::time_to_http( $pic->pictime ) );
$r->print($data);
return $r->OK;
}
1;