1 package C4::HTML5Media;
3 # Copyright 2012/2015 Mirko Tietgen
5 # This file is part of Koha.
7 # Koha is free software; you can redistribute it and/or modify it
8 # under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3 of the License, or
10 # (at your option) any later version.
12 # Koha is distributed in the hope that it will be useful, but
13 # WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with Koha; if not, see <http://www.gnu.org/licenses>.
25 use Koha::UploadedFiles;
33 This module gets the relevant data from field 856 (MARC21/UNIMARC) to create a HTML5 audio or video element containing the file(s) catalogued in 856.
39 Get all relevant data from field 856. Takes a $record in the subroutine call, sets appropriate params.
46 my @HTML5Media_sets = ();
47 my @HTML5Media_fields = $record->field(856);
50 my @HTML5MediaExtensions = split( /\|/, C4::Context->preference("HTML5MediaExtensions") );
51 my $HTML5MediaYouTube = C4::Context->preference("HTML5MediaYouTube");
52 my $marcflavour = C4::Context->preference("marcflavour");
53 foreach my $HTML5Media_field (@HTML5Media_fields) {
57 if ( $HTML5Media_field->indicator(1) eq '1' ) {
58 $HTML5Media{protocol} = 'ftp';
60 elsif ( $HTML5Media_field->indicator(1) eq '4' ) {
61 $HTML5Media{protocol} = 'http';
63 elsif ( $HTML5Media_field->indicator(1) eq '7' ) {
64 if ($marcflavour eq 'MARC21') {
65 $HTML5Media{protocol} = $HTML5Media_field->subfield('2');
67 elsif ($marcflavour eq 'UNIMARC') {
68 $HTML5Media{protocol} = $HTML5Media_field->subfield('y');
72 $HTML5Media{protocol} = 'http';
75 if ( $HTML5Media_field->subfield('l') ) {
76 $HTML5Media{username} = $HTML5Media_field->subfield('l'); # yes, that is arbitrary if h and l are not the same. originally i flipped a coin in that case.
78 elsif ( $HTML5Media_field->subfield('h') ) {
79 $HTML5Media{username} = $HTML5Media_field->subfield('h');
82 if ( $HTML5Media{username} && $HTML5Media_field->subfield('k') ) {
83 $HTML5Media{loginblock} = $HTML5Media{username} . ':' . $HTML5Media_field->subfield('k') . '@';
85 elsif ( $HTML5Media{username} ) {
86 $HTML5Media{loginblock} = $HTML5Media{username} . '@';
89 $HTML5Media{loginblock} = '';
92 if ( $HTML5Media_field->subfield('p') ) {
93 $HTML5Media{portblock} = ':' . $HTML5Media_field->subfield('k');
96 $HTML5Media{portblock} = '';
99 if ( $HTML5Media_field->subfield('u') ) {
100 $HTML5Media{srcblock} = $HTML5Media_field->subfield('u');
101 if (grep /youtu\.?be/, $HTML5Media_field->subfield('u') ) {
102 if ($HTML5MediaYouTube == 1) {
103 my $url = $HTML5Media_field->subfield('u');
104 # Credit for regex goes to https://stackoverflow.com/questions/3452546/how-do-i-get-the-youtube-video-id-from-a-url
105 next unless $url =~ m{^.*(youtu\.be\/|v\/|u\/\w\/|embed\/|watch\?v=|\&v=)([^#\&\?]*).*};
107 next unless length($video_id) == 11; # Youtube video ids are 11 chars length
108 $HTML5Media{srcblock} = sprintf 'https://www.youtube.com/embed/%s', $video_id;
109 $HTML5Media{is_youtube} = 1;
113 next; # do not embed youtube videos
117 elsif ( $HTML5Media_field->subfield('a') && $HTML5Media_field->subfield('d') && $HTML5Media_field->subfield('f') ) {
118 $HTML5Media{host} = $HTML5Media_field->subfield('a');
119 $HTML5Media{host} =~ s/(^\/|\/$)//g;
120 $HTML5Media{path} = $HTML5Media_field->subfield('d');
121 $HTML5Media{path} =~ s/(^\/|\/$)//g; # TODO we could check for youtube here too, but nobody uses these fields anyway…
122 $HTML5Media{file} = $HTML5Media_field->subfield('f');
123 $HTML5Media{srcblock} = $HTML5Media{protocol} . '://' . $HTML5Media{loginblock} . $HTML5Media{host} . $HTML5Media{portblock} . '/' . $HTML5Media{path} . '/' . $HTML5Media{file};
126 next; # no file to play
129 # check uploaded files
130 if ( $HTML5Media{srcblock} =~ /\Qopac-retrieve-file.pl\E/ ) {
131 my ( undef, $id ) = split /id=/, $HTML5Media{srcblock};
133 my %public = ( ( caller )[1] =~ /opac/ ) ? ( public => 1 ): ();
134 my $upload = Koha::UploadedFiles->search({
135 hashvalue => $id, %public,
137 next if !$upload || $upload->filename !~ /\./;
138 $HTML5Media{extension} = ( $upload->filename =~ m/([^.]+)$/ )[0];
142 $HTML5Media{extension} = ($HTML5Media{srcblock} =~ m/([^.]+)$/)[0];
144 if ( ( !grep /\Q$HTML5Media{extension}\E/, @HTML5MediaExtensions ) && ( $is_youtube != 1) ) {
145 next; # not a specified media file
148 if ($is_youtube == 1) {
149 $HTML5Media{mime} = 'video/webm';
150 $HTML5Media{type} = 'video';
153 if ( $HTML5Media_field->subfield('c') ) {
154 $HTML5Media{codecs} = $HTML5Media_field->subfield('c');
157 if ( $HTML5Media_field->subfield('q') ) {
158 $HTML5Media{mime} = $HTML5Media_field->subfield('q');
160 ### …or from file extension and codecs…
161 elsif ( $HTML5Media{codecs} ) {
162 if ( $HTML5Media{codecs} =~ /theora.*vorbis/ ) {
163 $HTML5Media{mime} = 'video/ogg';
165 elsif ( $HTML5Media{codecs} =~ /vp8.*vorbis/ ) {
166 $HTML5Media{mime} = 'video/webm';
168 elsif ( ($HTML5Media{codecs} =~ /^vorbis$/) && ($HTML5Media{extension} eq 'ogg') ) {
169 $HTML5Media{mime} = 'audio/ogg';
171 elsif ( ($HTML5Media{codecs} =~ /^vorbis$/) && ($HTML5Media{extension} eq 'webm') ) {
172 $HTML5Media{mime} = 'audio/webm';
175 ### …or just from file extension
177 if ( $HTML5Media{extension} eq 'ogv' ) {
178 $HTML5Media{mime} = 'video/ogg';
179 $HTML5Media{codecs} = 'theora,vorbis';
181 if ( $HTML5Media{extension} eq 'oga' ) {
182 $HTML5Media{mime} = 'audio/ogg';
183 $HTML5Media{codecs} = 'vorbis';
185 elsif ( $HTML5Media{extension} eq 'spx' ) {
186 $HTML5Media{mime} = 'audio/ogg';
187 $HTML5Media{codecs} = 'speex';
189 elsif ( $HTML5Media{extension} eq 'opus' ) {
190 $HTML5Media{mime} = 'audio/ogg';
191 $HTML5Media{codecs} = 'opus';
193 elsif ( $HTML5Media{extension} eq 'vtt' ) {
194 $HTML5Media{mime} = 'text/vtt';
198 if ( $HTML5Media{codecs} ) {
199 $HTML5Media{codecblock} = '; codecs="' . $HTML5Media{codecs} . '"';
202 $HTML5Media{codecblock} = '';
205 if ( $HTML5Media{mime} ) {
206 $HTML5Media{typeblock} = ' type=\'' . $HTML5Media{mime} . $HTML5Media{codecblock} . '\'';
209 $HTML5Media{typeblock} = '';
212 if ( $HTML5Media{mime} =~ /audio/ ) {
213 $HTML5Media{type} = 'audio';
215 elsif ( $HTML5Media{mime} =~ /video/ ) {
216 $HTML5Media{type} = 'video';
218 elsif ( $HTML5Media{mime} =~ /text/ ) {
219 $HTML5Media{type} = 'track';
222 if ( $HTML5Media{srcblock} && $HTML5Media{type} ) {
223 push (@HTML5Media_sets, \%HTML5Media);
227 for my $media ( @HTML5Media_sets ) {
228 if ( ($media->{mime}) && ($media->{mime} =~ /audio/) ) {
229 if ( $HTML5MediaParent ne 'video' ) {
230 $HTML5MediaParent = 'audio';
231 $HTML5MediaWidth = '';
234 elsif ( ($media->{mime}) && ($media->{mime} =~ /video/) ) {
235 $HTML5MediaParent = 'video';
236 $HTML5MediaWidth = ' width="480"';
240 for my $media ( @HTML5Media_sets ) {
241 if ( ($media->{type}) && ( ($media->{type} eq 'video') || ($media->{type} eq 'audio') ) ) {
242 if ( $media->{type} eq $HTML5MediaParent ) {
243 $media->{child} = 'source';
247 $media->{child} = $media->{type};
252 HTML5MediaEnabled => ( (scalar(@HTML5Media_sets) > 0) && ($HTML5MediaParent) ),
253 HTML5MediaSets => \@HTML5Media_sets,
254 HTML5MediaParent => $HTML5MediaParent,
255 HTML5MediaWidth => $HTML5MediaWidth,