57288e020d
This patch corrects the bug spotted by Owen Leonard where the Images tab was showing up even for records that didn't have local cover images attached to them. The tab is now hidden on the OPAC for records that don't have any images. In the Intranet, an Images tab will show for staff with permission to upload images, suggesting that they do so. For staff without that permission, the tab is not shown. This permission also disables returning images via the opac-image.pl and catalogue/image.pl scripts when local cover images have been disabled. Signed-off-by: Magnus Enger <magnus@enger.priv.no> Signed-off-by: Koustubha Kale <kmkale@anantcorp.com>
110 lines
3 KiB
Perl
Executable file
110 lines
3 KiB
Perl
Executable file
#!/usr/bin/perl
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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 under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the 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 along
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# with Koha; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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#
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#
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use strict;
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use warnings;
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use CGI; #qw(:standard escapeHTML);
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use C4::Context;
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use C4::Images;
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$|=1;
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my $DEBUG = 0;
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my $data = new CGI;
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my $imagenumber;
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=head1 NAME
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opac-image.pl - Script for retrieving and formatting local cover images for display
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=head1 SYNOPSIS
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<img src="opac-image.pl?imagenumber=X" />
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<img src="opac-image.pl?biblionumber=X" />
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<img src="opac-image.pl?imagenumber=X&thumbnail=1" />
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<img src="opac-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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error() unless C4::Context->preference("OPACLocalCoverImages");
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if (defined $data->param('imagenumber')) {
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$imagenumber = $data->param('imagenumber');
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} elsif (defined $data->param('biblionumber')) {
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my @imagenumbers = ListImagesForBiblio($data->param('biblionumber'));
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if (@imagenumbers) {
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$imagenumber = $imagenumbers[0];
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} else {
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warn "No images for this biblio" if $DEBUG;
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error();
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}
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} else {
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$imagenumber = shift;
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}
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if ($imagenumber) {
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warn "imagenumber passed in: $imagenumber" if $DEBUG;
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my $imagedata = RetrieveImage($imagenumber);
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error() unless $imagedata;
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if ($imagedata) {
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my $image;
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if ($data->param('thumbnail')) {
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$image = $imagedata->{'thumbnail'};
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} else {
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$image = $imagedata->{'imagefile'};
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}
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print $data->header (-type => $imagedata->{'mimetype'}, -'Cache-Control' => 'no-store', -expires => 'now', -Content_Length => length ($image)), $image;
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exit;
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} else {
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warn "No image exists for $imagenumber" if $DEBUG;
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error();
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}
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} else {
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error();
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}
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error();
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sub error {
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print $data->header ( -status=> '404', -expires => 'now' );
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exit;
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}
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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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