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98 lines
2.8 KiB
98 lines
2.8 KiB
#!/usr/bin/perl
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#
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# Copyright (C) 2011 C & P Bibliography Services
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# Jared Camins-Esakov <jcamins@cpbibliograpy.com>
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#
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# based on patronimage.pl
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#
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# This file is part of Koha.
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#
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# Koha is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# Koha is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Koha; if not, see <http://www.gnu.org/licenses>.
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#
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#
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#
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use Modern::Perl;
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use CGI qw ( -utf8 ); #qw(:standard escapeHTML);
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use C4::Context;
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use Koha::CoverImages;
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use Koha::Biblios;
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use Koha::Exceptions;
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$| = 1;
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my $data = CGI->new;
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my $imagenumber;
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=head1 NAME
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image.pl - Script for retrieving and formatting local cover images for display
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=head1 SYNOPSIS
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<img src="image.pl?imagenumber=X" />
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<img src="image.pl?biblionumber=X" />
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<img src="image.pl?imagenumber=X&thumbnail=1" />
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<img src="image.pl?biblionumber=X&thumbnail=1" />
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=head1 DESCRIPTION
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This script, when called from within HTML and passed a valid imagenumber or
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biblionumber, will retrieve the image data associated with that biblionumber
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if one exists, format it in proper HTML format and pass it back to be displayed.
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If the parameter thumbnail has been provided, a thumbnail will be returned
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rather than the full-size image. When a biblionumber is provided rather than an
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imagenumber, a random image is selected.
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=cut
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my ( $image );
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if ( C4::Context->preference("LocalCoverImages") ) {
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my $imagenumber = $data->param('imagenumber');
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my $biblionumber = $data->param('biblionumber');
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if ( defined $imagenumber ) {
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$imagenumber = $data->param('imagenumber');
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$image = Koha::CoverImages->find($imagenumber);
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}
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elsif ( defined $biblionumber ) {
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my $biblio = Koha::Biblios->find($biblionumber);
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Koha::Exceptions::ObjectNotFound->throw( 'No bibliographic record for biblionumber ' . $biblionumber ) unless $biblio;
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my $cover_images = $biblio->cover_images;
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if ( $cover_images->count ) {
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$image = $cover_images->next;
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}
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}
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}
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$image ||= Koha::CoverImages->no_image;
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my $image_data =
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$data->param('thumbnail')
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? $image->thumbnail
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: $image->imagefile;
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print $data->header(
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-type => $image->mimetype,
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-expires => '+30m',
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-Content_Length => length($image_data)
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), $image_data;
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=head1 AUTHOR
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Chris Nighswonger cnighswonger <at> foundations <dot> edu
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modified for local cover images by Koustubha Kale kmkale <at> anantcorp <dot> com
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=cut
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