package C4::External::BakerTaylor; # Copyright (C) 2008 LibLime # # # This file is part of Koha. # # Koha is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # Koha is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with Koha; if not, see . use XML::Simple; use LWP::Simple qw( get ); use C4::Context; use Modern::Perl; use vars qw(%EXPORT_TAGS $VERSION); our (@ISA, @EXPORT_OK); BEGIN { require Exporter; @ISA = qw(Exporter); $VERSION = 3.07.00.049; @EXPORT_OK = qw(availability content_cafe_url image_url link_url http_jacket_link); } # These variables are plack safe: they are initialized each time my ( $user, $pass, $agent, $image_url, $link_url ); sub _initialize { $user = (@_ ? shift : C4::Context->preference('BakerTaylorUsername') ) || ''; # LL17984 $pass = (@_ ? shift : C4::Context->preference('BakerTaylorPassword') ) || ''; # CC82349 $link_url = (@_ ? shift : C4::Context->preference('BakerTaylorBookstoreURL')); $image_url = "https://contentcafe2.btol.com/ContentCafe/Jacket.aspx?UserID=$user&Password=$pass&Options=Y&Return=T&Type=S&Value="; $agent = "Koha/$VERSION [en] (Linux)"; #"Mozilla/4.76 [en] (Win98; U)", # if for some reason you want to go stealth, you might prefer this } sub image_url { _initialize(); ($user and $pass) or return; my $isbn = (@_ ? shift : ''); $isbn =~ s/(p|-)//g; # sanitize return $image_url . $isbn; } sub link_url { _initialize(); my $isbn = (@_ ? shift : ''); $isbn =~ s/(p|-)//g; # sanitize $link_url or return; return $link_url . $isbn; } sub content_cafe_url { _initialize(); ($user and $pass) or return; my $isbn = (@_ ? shift : ''); $isbn =~ s/(p|-)//g; # sanitize return "https://contentcafe2.btol.com/ContentCafeClient/ContentCafe.aspx?UserID=$user&Password=$pass&Options=Y&ItemKey=$isbn"; } sub http_jacket_link { _initialize(); my $isbn = shift or return; $isbn =~ s/(p|-)//g; # sanitize my $image = availability($isbn); my $alt = "Buy this book"; $image and $image = qq($alt); my $link = &link_url($isbn); unless ($link) {return $image || '';} return sprintf qq(%s),$link,($image||$alt); } sub availability { _initialize(); my $isbn = shift or return; ($user and $pass) or return; $isbn =~ s/(p|-)//g; # sanitize my $url = "https://contentcafe2.btol.com/ContentCafe/InventoryAvailability.asmx/CheckInventory?UserID=$user&Password=$pass&Value=$isbn"; my $content = get($url); warn "could not retrieve $url" unless $content; my $xmlsimple = XML::Simple->new(); my $result = $xmlsimple->XMLin($content); if ($result->{Error}) { warn "Error returned to " . __PACKAGE__ . " : " . $result->{Error}; } my $avail = $result->{Availability}; return ($avail and $avail !~ /^false$/i) ? &image_url($isbn) : 0; } 1; __END__ =head1 NAME C4::External::BakerTaylor =head1 DESCRIPTION Functions for retrieving content from Baker and Taylor, inventory availability and "Content Cafe". The settings for this module are controlled by System Preferences: These can be overridden for testing purposes using the initialize function. =head1 FUNCTIONS =head2 availability($isbn); $isbn is a isbn string =head1 NOTES A request with failed authentication might see this back from Baker + Taylor: string false Invalid UserID Such response will trigger a warning for each request (potentially many). Point being, do not leave this module configured with incorrect username and password in production. =head1 SEE ALSO LWP::UserAgent =head1 AUTHOR Joe Atzberger atz AT liblime DOT com =cut