C4/XISBN.pm

   1 package C4::XISBN;
   2 # Copyright (C) 2007 LibLime
   3 # Joshua Ferraro <jmf@liblime.com>
   4 #
   5 # This file is part of Koha.
   6 #
   7 # Koha is free software; you can redistribute it and/or modify it
   8 # under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # Koha is distributed in the hope that it will be useful, but
  13 # WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  19
  20 use Modern::Perl;
  21 use XML::Simple;
  22 #use LWP::Simple;
  23 use C4::Biblio;
  24 use C4::Koha;
  25 use C4::Search;
  26 use C4::External::Syndetics qw(get_syndetics_editions);
  27 use LWP::UserAgent;
  28 use HTTP::Request::Common;
  29
  30 use Koha::Biblios;
  31 use Koha::SearchEngine;
  32 use Koha::SearchEngine::Search;
  33
  34 use vars qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
  35
  36 BEGIN {
  37         require Exporter;
  38         @ISA = qw(Exporter);
  39         @EXPORT_OK = qw(
  40                 &get_xisbns
  41         );
  42 }
  43
  44 =head1 NAME
  45
  46 C4::XISBN - Functions for retrieving XISBN content in Koha
  47
  48 =head1 FUNCTIONS
  49
  50 This module provides facilities for retrieving ThingISBN and XISBN content in Koha
  51
  52 =cut
  53
  54 sub _get_biblio_from_xisbn {
  55     my $xisbn = shift;
  56     my $dbh = C4::Context->dbh;
  57
  58     my $searcher = Koha::SearchEngine::Search->new({index => $Koha::SearchEngine::BIBLIOS_INDEX});
  59     my ( $errors, $results, $total_hits ) = $searcher->simple_search_compat( "nb=$xisbn", 0, 1 );
  60     return unless ( !$errors && scalar @$results );
  61
  62     my $record = C4::Search::new_record_from_zebra( 'biblioserver', $results->[0] );
  63     my $biblionumber = C4::Biblio::TransformMarcToKohaOneField( 'biblio.biblionumber', $record );
  64     return unless $biblionumber;
  65
  66     my $biblio = Koha::Biblios->find( $biblionumber );
  67     return unless $biblio;
  68     my $isbn = $biblio->biblioitem->isbn;
  69     $biblio = $biblio->unblessed;
  70     $biblio->{normalized_isbn} = GetNormalizedISBN($isbn);
  71     return $biblio;
  72 }
  73
  74 =head1 get_xisbns($isbn, $biblionumber);
  75
  76 =head2 $isbn is an ISBN string
  77
  78 =cut
  79
  80 sub get_xisbns {
  81     my ( $isbn, $biblionumber ) = @_;
  82     my ($response,$thing_response,$syndetics_response,$errors);
  83     # THINGISBN
  84     if ( C4::Context->preference('ThingISBN') ) {
  85         my $url = "http://www.librarything.com/api/thingISBN/".$isbn;
  86         $thing_response = _get_url($url,'thingisbn');
  87     }
  88
  89         if ( C4::Context->preference("SyndeticsEnabled") && C4::Context->preference("SyndeticsEditions") ) {
  90         my $syndetics_preresponse = &get_syndetics_editions($isbn);
  91                 my @syndetics_response;
  92                 for my $response (@$syndetics_preresponse) {
  93                         push @syndetics_response, {content => $response->{a}};
  94                 }
  95                 $syndetics_response = {isbn => \@syndetics_response};
  96         }
  97
  98     $response->{isbn} = [ @{ $syndetics_response->{isbn} or [] }, @{ $thing_response->{isbn} or [] } ];
  99     my @xisbns;
 100     my $unique_xisbns; # a hashref
 101
 102     # loop through each ISBN and scope to the local collection
 103     for my $response_data( @{ $response->{ isbn } } ) {
 104         next if $response_data->{'content'} eq $isbn;
 105         next if $isbn eq $response_data;
 106         next if $unique_xisbns->{ $response_data->{content} };
 107         $unique_xisbns->{ $response_data->{content} }++;
 108         my $xbiblio= _get_biblio_from_xisbn($response_data->{content});
 109         next unless $xbiblio;
 110         next if $xbiblio->{normalized_isbn} && $xbiblio->{normalized_isbn} eq $isbn;
 111         push @xisbns, $xbiblio if $xbiblio && $xbiblio->{biblionumber} ne $biblionumber;
 112     }
 113     if ( wantarray ) {
 114         return (\@xisbns, $errors);
 115     }
 116     else {
 117         return \@xisbns;
 118     }
 119 }
 120
 121 sub _get_url {
 122     my ($url,$service_type) = @_;
 123     my $ua = LWP::UserAgent->new(
 124         timeout => 2
 125         );
 126
 127     my $response = $ua->get($url);
 128     if ($response->is_success) {
 129         warn "WARNING could not retrieve $service_type $url" unless $response;
 130         if ($response) {
 131             my $xmlsimple = XML::Simple->new();
 132             my $content = $xmlsimple->XMLin(
 133             $response->content,
 134             ForceArray => [ qw(isbn) ],
 135             ForceContent => 1,
 136             );
 137             return $content;
 138         }
 139     } else {
 140         warn "WARNING: URL Request Failed " . $response->status_line . "\n";
 141     }
 142
 143 }
 144
 145 1;
 146 __END__
 147
 148 =head1 NOTES
 149
 150 =cut
 151
 152 =head1 AUTHOR
 153
 154 Joshua Ferraro <jmf@liblime.com>
 155
 156 =cut
 157