Make Evergreen Perl modules installable via Module::Build to match OpenSRF
[Evergreen.git] / Open-ILS / src / perlmods / lib / OpenILS / WWW / AddedContent / Syndetic.pm
1 package OpenILS::WWW::AddedContent::Syndetic;
2 use strict; use warnings;
3 use OpenSRF::Utils::Logger qw/$logger/;
4 use OpenSRF::Utils::SettingsParser;
5 use OpenSRF::Utils::JSON;
6 use OpenSRF::EX qw/:try/;
7 use OpenILS::WWW::AddedContent;
8 use XML::LibXML;
9 use MIME::Base64;
10
11 my $AC = 'OpenILS::WWW::AddedContent';
12
13
14 sub new {
15     my( $class, $args ) = @_;
16     $class = ref $class || $class;
17     return bless($args, $class);
18 }
19
20 sub base_url {
21     my $self = shift;
22     return $self->{base_url};
23 }
24
25 sub userid {
26     my $self = shift;
27     return $self->{userid};
28 }
29
30
31 # --------------------------------------------------------------------------
32 sub jacket_small {
33     my( $self, $key ) = @_;
34     return $self->send_img(
35         $self->fetch_response('sc.gif', $key, 1));
36 }
37
38 sub jacket_medium {
39     my( $self, $key ) = @_;
40     return $self->send_img(
41         $self->fetch_response('mc.gif', $key, 1));
42
43 }
44 sub jacket_large {
45     my( $self, $key ) = @_;
46     return $self->send_img(
47         $self->fetch_response('lc.gif', $key, 1));
48 }
49
50 # --------------------------------------------------------------------------
51
52 sub toc_html {
53     my( $self, $key ) = @_;
54     return $self->send_html(
55         $self->fetch_content('toc.html', $key));
56 }
57
58 sub toc_xml {
59     my( $self, $key ) = @_;
60     return $self->send_xml(
61         $self->fetch_content('toc.xml', $key));
62 }
63
64 sub toc_json {
65     my( $self, $key ) = @_;
66     return $self->send_json(
67         $self->fetch_content('toc.xml', $key));
68 }
69
70 # --------------------------------------------------------------------------
71
72 sub anotes_html {
73     my( $self, $key ) = @_;
74     return $self->send_html(
75         $self->fetch_content('anotes.html', $key));
76 }
77
78 sub anotes_xml {
79     my( $self, $key ) = @_;
80     return $self->send_xml(
81         $self->fetch_content('anotes.xml', $key));
82 }
83
84 sub anotes_json {
85     my( $self, $key ) = @_;
86     return $self->send_json(
87         $self->fetch_content('anotes.xml', $key));
88 }
89
90
91 # --------------------------------------------------------------------------
92
93 sub excerpt_html {
94     my( $self, $key ) = @_;
95     return $self->send_html(
96         $self->fetch_content('dbchapter.html', $key));
97 }
98
99 sub excerpt_xml {
100     my( $self, $key ) = @_;
101     return $self->send_xml(
102         $self->fetch_content('dbchapter.xml', $key));
103 }
104
105 sub excerpt_json {
106     my( $self, $key ) = @_;
107     return $self->send_json(
108         $self->fetch_content('dbchapter.xml', $key));
109 }
110
111 # --------------------------------------------------------------------------
112
113 sub reviews_html {
114     my( $self, $key ) = @_;
115
116     my %reviews;
117
118     $reviews{ljreview} = $self->fetch_content('ljreview.html', $key);
119     $reviews{pwreview} = $self->fetch_content('pwreview.html', $key);
120     $reviews{slreview} = $self->fetch_content('slreview.html', $key);
121     $reviews{chreview} = $self->fetch_content('chreview.html', $key);
122     $reviews{blreview} = $self->fetch_content('blreview.html', $key);
123     $reviews{hbreview} = $self->fetch_content('hbreview.html', $key);
124     $reviews{kirkreview} = $self->fetch_content('kirkreview.html', $key);
125
126     for(keys %reviews) {
127         if( ! $self->data_exists($reviews{$_}) ) {
128             delete $reviews{$_};
129             next;
130         }
131         $reviews{$_} =~ s/<!.*?>//og; # Strip any doctype declarations
132     }
133
134     return 0 if scalar(keys %reviews) == 0;
135     
136     #my $html = "<div>";
137     my $html;
138     $html .= $reviews{$_} for keys %reviews;
139     #$html .= "</div>";
140
141     return $self->send_html($html);
142 }
143
144 # we have to aggregate the reviews
145 sub reviews_xml {
146     my( $self, $key ) = @_;
147     my %reviews;
148
149     $reviews{ljreview} = $self->fetch_content('ljreview.xml', $key);
150     $reviews{pwreview} = $self->fetch_content('pwreview.xml', $key);
151     $reviews{slreview} = $self->fetch_content('slreview.xml', $key);
152     $reviews{chreview} = $self->fetch_content('chreview.xml', $key);
153     $reviews{blreview} = $self->fetch_content('blreview.xml', $key);
154     $reviews{hbreview} = $self->fetch_content('hbreview.xml', $key);
155     $reviews{kirkreview} = $self->fetch_content('kirkreview.xml', $key);
156
157     for(keys %reviews) {
158         if( ! $self->data_exists($reviews{$_}) ) {
159             delete $reviews{$_};
160             next;
161         }
162         # Strip the xml and doctype declarations
163         $reviews{$_} =~ s/<\?xml.*?>//og;
164         $reviews{$_} =~ s/<!.*?>//og;
165     }
166
167     return 0 if scalar(keys %reviews) == 0;
168     
169     my $xml = "<reviews>";
170     $xml .= $reviews{$_} for keys %reviews;
171     $xml .= "</reviews>";
172
173     return $self->send_xml($xml);
174 }
175
176
177 sub reviews_json {
178     my( $self, $key ) = @_;
179     return $self->send_json(
180         $self->fetch_content('dbchapter.xml', $key));
181 }
182
183 # --------------------------------------------------------------------------
184
185
186 sub data_exists {
187     my( $self, $data ) = @_;
188     return 0 if $data =~ m/<title>error<\/title>/iog;
189     return 1;
190 }
191
192
193 sub send_json {
194     my( $self, $xml ) = @_;
195     return 0 unless $self->data_exists($xml);
196     my $doc;
197
198     try {
199         $doc = XML::LibXML->new->parse_string($xml);
200     } catch Error with {
201         my $err = shift;
202         $logger->error("added content XML parser error: $err\n\n$xml");
203         $doc = undef;
204     };
205
206     return 0 unless $doc;
207     my $perl = OpenSRF::Utils::SettingsParser::XML2perl($doc->documentElement);
208     my $json = OpenSRF::Utils::JSON->perl2JSON($perl);
209     return { content_type => 'text/plain', content => $json };
210 }
211
212 sub send_xml {
213     my( $self, $xml ) = @_;
214     return 0 unless $self->data_exists($xml);
215     return { content_type => 'application/xml', content => $xml };
216 }
217
218 sub send_html {
219     my( $self, $content ) = @_;
220     return 0 unless $self->data_exists($content);
221
222     # Hide anything that might contain a link since it will be broken
223     my $HTML = <<"    HTML";
224         <div>
225             <style type='text/css'>
226                 div.ac input, div.ac a[href],div.ac img, div.ac button { display: none; visibility: hidden }
227             </style>
228             <div class='ac'>
229                 $content
230             </div>
231         </div>
232     HTML
233
234     return { content_type => 'text/html', content => $HTML };
235 }
236
237 sub send_img {
238     my($self, $response) = @_;
239     return { 
240         content_type => $response->header('Content-type'),
241         content => $response->content, 
242         binary => 1 
243     };
244 }
245
246 # returns the raw content returned from the URL fetch
247 sub fetch_content {
248     my( $self, $page, $key ) = @_;
249     return $self->fetch_response($page, $key)->content;
250 }
251
252 # returns the HTTP response object from the URL fetch
253 sub fetch_response {
254     my( $self, $page, $key, $notype ) = @_;
255     my $uname = $self->userid;
256     my $url = $self->base_url . "?isbn=$key/$page&client=$uname" . (($notype) ? '' : "&type=rw12");
257     return $AC->get_url($url);
258 }
259
260
261
262 1;