refactor C4::Auth::get_template_and_user for readability

[koha.git] / C4 / Amazon.pm

diff --git a/C4/Amazon.pm b/C4/Amazon.pm
old mode 100755 (executable)
new mode 100644 (file)
index 34b58b1..b22d837
--- a/C4/Amazon.pm
+++ b/C4/Amazon.pm
@@ -1,6 +1,6 @@
-
 package C4::Amazon;
-# Copyright 2004-2005 Joshua Ferraro (jmf at kados dot org)
+# Copyright (C) 2006 LibLime
+# <jmf at liblime dot com>
 #
 # This file is part of Koha.
 #
@@ -16,76 +16,109 @@ package C4::Amazon;
 # You should have received a copy of the GNU General Public License along with
 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
 # Suite 330, Boston, MA  02111-1307 USA
-#
-# This module dynamically pulls amazon content into Koha.  It does not
-# store the data in Koha's database.  You'll need to get a developer's key
-# as well as an associate's tag to use it.
-# FIXME: need to write up more docs.
-#
-# To use this module you need to do three things:
-# 1. get a dev key and associate tag from Amazon
-# 2. uncomment the Amazon stuff in opac-detail.pl
-# 3. add the template variables to opac-detail.tmpl
-#    here's what's available: 
-#    ProductDescription
-#    ImageUrlMedium
-#    ListPrice
-#    url
-#    loop SimilarProducts (Product)
-#    loop Reviews (rating, Summary)
-#
+
+use XML::Simple;
+use LWP::Simple;
+use LWP::UserAgent;
+use HTTP::Request::Common;
+
 use strict;
-require Exporter;
 
 use vars qw($VERSION @ISA @EXPORT);
 
-$VERSION = 0.01;
+BEGIN {
+    require Exporter;
+    $VERSION = 0.03;
+    @ISA = qw(Exporter);
+    @EXPORT = qw(
+        &get_amazon_details
+        &check_search_inside
+    );
+}
 
-@ISA = qw(Exporter);
+=head1 NAME
 
-@EXPORT = qw(
-  &get_amazon_details
-);
+C4::Amazon - Functions for retrieving Amazon.com content in Koha
 
-sub get_amazon_details {
+=head1 FUNCTIONS
 
-my ( $isbn ) = @_;
+This module provides facilities for retrieving Amazon.com content in Koha
 
-# insert your dev key here
-my $dev_key='neulibrary-20';
-$isbn=substr($isbn,0,9);
-# insert your associates tag here
-my $af_tag='0YGCZ5GV9ZNGGS7THDG2';
+=head1 get_amazon_details($isbn);
 
-my $asin=$isbn;
+=head2 $isbn is a isbn string
 
-# old way from command line: shift @ARGV or die "Usage:perl amazon_http.ol <asin>\n";
+=cut
 
-#my $url = "http://xml.amazon.com/onca/xml3?t=" . $af_tag .
-#      "&dev-t=" . $dev_key .
-#      "&type=heavy&f=xml&" .
-#      "AsinSearch=" . $asin;
-my $url = "http://xml.amazon.com/onca/xml3?t=$dev_key&dev-t=$af_tag&type=heavy&f=xml&AsinSearch=" . $asin;
+sub get_amazon_details {
+    my ( $isbn ) = @_;
+    #normalize the ISBN
+    $isbn =~ /(\d*[X]*)/;
+    $isbn = $1;
 
-#Here's an example asin for the book "Cryptonomicon"
-#0596005423";
+    # Determine which content to grab in the request
 
-use XML::Simple;
-use LWP::Simple;
-my $content = get($url);
-if ($content){
-
-my $xmlsimple = XML::Simple->new();
-my $response = $xmlsimple->XMLin($content,
-  forcearray => [ qw(Details Product AvgCustomerRating CustomerReview ) ],
-);
-return $response;
-#foreach my $result (@{$response->{Details}}){
-#      my $product_description = $result->{ProductDescription};
-#      my $image = $result->{ImageUrlMedium};
-#      my $price = $result->{ListPrice};
-#      my $reviews = $result->{
-#      return $result;
-#}
+    # Determine correct locale
+    my $locale_hashref = {
+        CA => '.ca',
+        DE => '.de',
+        FR => '.fr',
+        JP => '.jp',
+        UK => '.co.uk',
+        US => '.com',
+    };
+
+    my $amazon_locale_syspref = C4::Context->preference('AmazonLocale');
+    my $tld = $locale_hashref->{$amazon_locale_syspref} || '.com'; # default top level domain is .com
+
+    # grab the AWSAccessKeyId: mine is '0V5RRRRJZ3HR2RQFNHR2'
+    my $aws_access_key_id = C4::Context->preference('AWSAccessKeyID');
+
+    #grab the associates tag: mine is 'kadabox-20'
+    my $af_tag=C4::Context->preference('AmazonAssocTag');
+    my $response_group = "Similarities,EditorialReview,Reviews,ItemAttributes";
+    my $asin=$isbn;
+    my $url = "http://ecs.amazonaws$tld/onca/xml?Service=AWSECommerceService&AWSAccessKeyId=$aws_access_key_id&Operation=ItemLookup&AssociateTag=$af_tag&Version=2007-01-15&ItemId=$asin&ResponseGroup=$response_group";
+    # warn $url;
+    my $content = get($url);
+    warn "could not retrieve $url" unless $content;
+    my $xmlsimple = XML::Simple->new();
+    my $response = $xmlsimple->XMLin(
+        $content,
+        forcearray => [ qw(SimilarProduct EditorialReview Review) ],
+    );
+    return $response;
+}
+
+sub check_search_inside {
+        my $isbn = shift;
+        my $ua = LWP::UserAgent->new(
+        agent => "Mozilla/4.76 [en] (Win98; U)",
+        keep_alive => 1,
+        env_proxy => 1,
+        );
+        my $available = 1;
+        my $uri = "http://www.amazon.com/gp/reader/$isbn/ref=sib_dp_pt/002-7879865-0184864#reader-link";
+        my $req = HTTP::Request->new(GET => $uri);
+        $req->header (
+                'Accept' => 'image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*',
+                'Accept-Charset' => 'iso-8859-1,*,utf-8',
+                'Accept-Language' => 'en-US' );
+        my $res = $ua->request($req);
+        my $content = $res->content();
+        if ($content =~ m/This book is temporarily unavailable/) {
+            undef $available;
+        }
+        return $available;
 }
-}
\ No newline at end of file
+
+1;
+__END__
+
+=head1 NOTES
+
+=head1 AUTHOR
+
+Joshua Ferraro <jmf@liblime.com>
+
+=cut