X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=C4%2FAmazon.pm;h=34f98c2e31762c4784204f2053955717411a14f6;hb=4c771727b70ff5f2cb54cdbccd5186f92d1577ef;hp=ae7573fe9e27aed8718f373e5c358597a306ec88;hpb=0d7b552dec8fe611c70045db841317382b67e674;p=koha.git

diff --git a/C4/Amazon.pm b/C4/Amazon.pm
old mode 100755
new mode 100644
index ae7573fe9e..34f98c2e31
--- a/C4/Amazon.pm
+++ b/C4/Amazon.pm
@@ -19,16 +19,41 @@ package C4::Amazon;
 
 use XML::Simple;
 use LWP::Simple;
-
 use LWP::UserAgent;
 use HTTP::Request::Common;
 
 use strict;
-require Exporter;
+use warnings;
 
 use vars qw($VERSION @ISA @EXPORT);
 
-$VERSION = 0.02;
+BEGIN {
+    require Exporter;
+    $VERSION = 0.03;
+    @ISA = qw(Exporter);
+    @EXPORT = qw(
+        &get_amazon_details
+        &check_search_inside
+        &get_amazon_tld
+    );
+}
+
+
+sub get_amazon_tld {
+    my %tld = (
+        CA => '.ca',
+        DE => '.de',
+        FR => '.fr',
+        JP => '.jp',
+        UK => '.co.uk',
+        US => '.com',
+    );
+
+    my $locale = C4::Context->preference('AmazonLocale');
+    my $tld = $tld{ $locale } || '.com'; # default top level domain is .com
+    return $tld;
+}
+
 
 =head1 NAME
 
@@ -38,42 +63,81 @@ C4::Amazon - Functions for retrieving Amazon.com content in Koha
 
 This module provides facilities for retrieving Amazon.com content in Koha
 
-=cut
+=head2 get_amazon_details
 
-@ISA = qw(Exporter);
+=over 4
 
-@EXPORT = qw(
-  &get_amazon_details
-  &check_search_inside
-);
+my $amazon_details = &get_amazon_details( $xisbn, $record, $marcflavour );
 
-=head1 get_amazon_details($isbn);
+=back
 
-=head2 $isbn is a isbn string
+Get editorial reviews, customer reviews, and similar products using Amazon Web Services.
 
 =cut
 
 sub get_amazon_details {
-    my ( $isbn ) = @_;
-
-    #get rid of MARC cataloger's nonsense
-    $isbn =~ s/(p|-)//g;
-
-    # grab the developer's key: mine is 'ektostoukadou-20'
-    my $dev_key=C4::Context->preference('AmazonDevKey');
-
-    #grab the associates tag: mine is '0ZRY7YASKJS280T7YB02'
+    my ( $isbn, $record, $marcflavour ) = @_;
+
+    #normalize the ISBN
+    $isbn = _normalize_match_point ($isbn);
+
+    my $upc = _get_amazon_upc($record,$marcflavour);
+    my $ean = _get_amazon_ean($record,$marcflavour);
+
+    # warn "ISBN: $isbn | UPC: $upc | EAN: $ean";
+
+    my ( $id_type, $item_id);
+    if (defined($isbn) && length($isbn) == 13) { # if the isbn is 13-digit, search Amazon using EAN
+	$id_type = 'EAN';
+	$item_id = $isbn;
+    }
+    elsif ($isbn) {
+	$id_type = 'ASIN';
+	$item_id = $isbn;
+    }
+    elsif ($upc) {
+	$id_type = 'UPC';
+	$item_id = $upc;
+    }
+    elsif ($ean) {
+	$id_type = 'EAN';
+	$item_id = $upc;
+    }
+    else { # if no ISBN, UPC, or EAN exists, do not even attempt to query Amazon
+	return undef;
+    }
+
+    my $format = substr $record->leader(), 6, 1; # grab the item format to determine Amazon search index
+    my $formats;
+    $formats->{'a'} = 'Books';
+    $formats->{'g'} = 'Video';
+    $formats->{'j'} = 'Music';
+
+    my $search_index = $formats->{$format};
+
+    # Determine which content to grab in the request
+
+    # Determine correct locale
+    my $tld = get_amazon_tld();
+
+    # 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 $asin=$isbn;
-    my $url = "http://xml.amazon.com/onca/xml3?t=$af_tag&dev-t=$dev_key&type=heavy&f=xml&AsinSearch=" . $asin;
+    my $response_group = "Similarities,EditorialReview,Reviews,ItemAttributes,Images";
+    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=$item_id&IdType=$id_type&ResponseGroup=$response_group";
+    if ($id_type ne 'ASIN') {
+	$url .= "&SearchIndex=$search_index";
+    }
+    # warn $url;
     my $content = get($url);
-    #warn $content;
     warn "could not retrieve $url" unless $content;
     my $xmlsimple = XML::Simple->new();
-    my $response = $xmlsimple->XMLin($content,
-    forcearray => [ qw(Details Product AvgCustomerRating CustomerReview) ],
-);
+    my $response = $xmlsimple->XMLin(
+        $content,
+        forcearray => [ qw(SimilarProduct EditorialReview Review) ],
+    ) unless !$content;
     return $response;
 }
 
@@ -99,6 +163,67 @@ sub check_search_inside {
         return $available;
 }
 
+sub _get_amazon_upc {
+	my ($record,$marcflavour) = @_;
+	my (@fields,$upc);
+
+	if ($marcflavour eq 'MARC21') {
+		@fields = $record->field('024');
+		foreach my $field (@fields) {
+			my $indicator = $field->indicator(1);
+			my $upc = _normalize_match_point($field->subfield('a'));
+			if ($indicator == 1 and $upc ne '') {
+				return $upc;
+			}
+		}
+	}
+	else { # assume unimarc if not marc21
+		@fields = $record->field('072');
+		foreach my $field (@fields) {
+			my $upc = _normalize_match_point($field->subfield('a'));
+			if ($upc ne '') {
+				return $upc;
+			}
+		}
+	}
+}
+
+sub _get_amazon_ean {
+	my ($record,$marcflavour) = @_;
+	my (@fields,$ean);
+
+	if ($marcflavour eq 'MARC21') {
+		@fields = $record->field('024');
+		foreach my $field (@fields) {
+			my $indicator = $field->indicator(1);
+			my $upc = _normalize_match_point($field->subfield('a'));
+			if ($indicator == 3 and $upc ne '') {
+				return $upc;
+			}
+		}
+	}
+	else { # assume unimarc if not marc21
+		@fields = $record->field('073');
+		foreach my $field (@fields) {
+			my $upc = _normalize_match_point($field->subfield('a'));
+			if ($upc ne '') {
+				return $upc;
+			}
+		}
+	}
+}
+
+sub _normalize_match_point {
+	my $match_point = shift;
+	(my $normalized_match_point) = $match_point =~ /([\d-]*[X]*)/;
+	$normalized_match_point =~ s/-//g;
+
+	return $normalized_match_point;
+}
+
+1;
+__END__
+
 =head1 NOTES
 
 =head1 AUTHOR
@@ -106,4 +231,3 @@ sub check_search_inside {
 Joshua Ferraro <jmf@liblime.com>
 
 =cut
-1;