C4/Amazon.pm

   1 package C4::Amazon;
   2 # Copyright (C) 2006 LibLime
   3 # <jmf at liblime dot com>
   4 #
   5 # This file is part of Koha.
   6 #
   7 # Koha is free software; you can redistribute it and/or modify it under the
   8 # terms of the GNU General Public License as published by the Free Software
   9 # Foundation; either version 2 of the License, or (at your option) any later
  10 # version.
  11 #
  12 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
  13 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  14 # A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License along with
  17 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
  18 # Suite 330, Boston, MA  02111-1307 USA
  19
  20 use XML::Simple;
  21 use LWP::Simple;
  22 use LWP::UserAgent;
  23 use HTTP::Request::Common;
  24
  25 use strict;
  26
  27 use vars qw($VERSION @ISA @EXPORT);
  28
  29 BEGIN {
  30         require Exporter;
  31         $VERSION = 0.03;
  32         @ISA = qw(Exporter);
  33         @EXPORT = qw(
  34                 &get_amazon_details
  35                 &check_search_inside
  36         );
  37 }
  38
  39 =head1 NAME
  40
  41 C4::Amazon - Functions for retrieving Amazon.com content in Koha
  42
  43 =head1 FUNCTIONS
  44
  45 This module provides facilities for retrieving Amazon.com content in Koha
  46
  47 =head1 get_amazon_details($isbn);
  48
  49 =head2 $isbn is a isbn string
  50
  51 =cut
  52
  53 sub get_amazon_details {
  54     my ( $isbn ) = @_;
  55
  56     #get rid of MARC cataloger's nonsense
  57     $isbn =~ s/(p|-)//g;
  58
  59     # grab the developer's key: mine is 'ektostoukadou-20'
  60     my $dev_key=C4::Context->preference('AmazonDevKey');
  61
  62     #grab the associates tag: mine is '0ZRY7YASKJS280T7YB02'
  63     my $af_tag=C4::Context->preference('AmazonAssocTag');
  64
  65     my $asin=$isbn;
  66     my $url = "http://xml.amazon.com/onca/xml3?t=$af_tag&dev-t=$dev_key&type=heavy&f=xml&AsinSearch=" . $asin;
  67     my $content = get($url);
  68     #warn $content;
  69     warn "could not retrieve $url" unless $content;
  70     my $xmlsimple = XML::Simple->new();
  71     my $response = $xmlsimple->XMLin($content,
  72     forcearray => [ qw(Details Product AvgCustomerRating CustomerReview) ],
  73 );
  74     return $response;
  75 }
  76
  77 sub check_search_inside {
  78         my $isbn = shift;
  79         my $ua = LWP::UserAgent->new(
  80         agent => "Mozilla/4.76 [en] (Win98; U)",
  81         keep_alive => 1,
  82         env_proxy => 1,
  83         );
  84         my $available = 1;
  85         my $uri = "http://www.amazon.com/gp/reader/$isbn/ref=sib_dp_pt/002-7879865-0184864#reader-link";
  86         my $req = HTTP::Request->new(GET => $uri);
  87         $req->header (
  88                 'Accept' => 'image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*',
  89                 'Accept-Charset' => 'iso-8859-1,*,utf-8',
  90                 'Accept-Language' => 'en-US' );
  91         my $res = $ua->request($req);
  92         my $content = $res->content();
  93         if ($content =~ m/This book is temporarily unavailable/) {
  94             undef $available;
  95         }
  96         return $available;
  97 }
  98
  99 1;
 100 __END__
 101
 102 =head1 NOTES
 103
 104 =head1 AUTHOR
 105
 106 Joshua Ferraro <jmf@liblime.com>
 107
 108 =cut