private function html()
{
if (!count($this->args['data']['feeds'])) {
return '';
}
$dataAccessor = 'podcastData' . self::get_random_string();
$dom = new \Podlove\DomDocumentFragment();
$script_data_tag = $dom->createElement('script');
$script_data_tag->appendChild($dom->createTextNode(sprintf("window.{$dataAccessor} = %s;", json_encode($this->args['data']))));
$script_button_tag = $dom->createElement('script');
$script_button_tag->setAttribute('class', 'podlove-subscribe-button');
$script_button_tag->setAttribute('src', 'https://cdn.podlove.org/subscribe-button/javascripts/app.js');
$script_button_tag->setAttribute('data-json-data', $dataAccessor);
$script_button_tag->setAttribute('data-language', self::language($this->args['language']));
$script_button_tag->setAttribute('data-size', self::size($this->args['size'], $this->args['width']));
if ($this->args['colors']) {
$script_button_tag->setAttribute('data-colors', $this->args['colors']);
}
if ($this->args['buttonid']) {
$script_button_tag->setAttribute('data-buttonid', $this->args['buttonid']);
}
if ($this->args['hide'] && in_array($args['hide'], [1, '1', true, 'true', 'on'])) {
$script_button_tag->setAttribute('data-hide', true);
}
// ensure there is a closing script tag
$script_button_tag->appendChild($dom->createTextNode(' '));
$dom->appendChild($script_data_tag);
$dom->appendChild($script_button_tag);
return (string) $dom;
}
function override_feed_head($hook, $podcast, $feed, $format)
{
$filter_hooks = array('podlove_feed_itunes_author', 'podlove_feed_itunes_owner', 'podlove_feed_itunes_subtitle', 'podlove_feed_itunes_keywords', 'podlove_feed_itunes_summary', 'podlove_feed_itunes_complete', 'podlove_feed_itunes_explicit');
foreach ($filter_hooks as $filter) {
add_filter($filter, 'convert_chars');
}
add_filter('podlove_feed_content', '\\Podlove\\Feeds\\prepare_for_feed');
remove_action($hook, 'the_generator');
add_action($hook, function () use($hook) {
switch ($hook) {
case 'rss2_head':
$gen = '<generator>' . \Podlove\get_plugin_header('Name') . ' v' . \Podlove\get_plugin_header('Version') . '</generator>';
break;
case 'atom_head':
$gen = '<generator uri="' . \Podlove\get_plugin_header('PluginURI') . '" version="' . \Podlove\get_plugin_header('Version') . '">' . \Podlove\get_plugin_header('Name') . '</generator>';
break;
}
echo $gen;
});
add_action($hook, function () use($feed) {
echo $feed->get_self_link();
echo $feed->get_alternate_links();
}, 9);
// add rss image
add_action($hook, function () use($podcast, $hook) {
$image = ['url' => $podcast->cover_art()->url(), 'title' => $podcast->title, 'link' => apply_filters('podlove_feed_link', \Podlove\get_landing_page_url())];
$image = apply_filters('podlove_feed_image', $image);
if (!$image['url']) {
return;
}
// remove WordPress provided favicon
remove_action($hook, 'rss2_site_icon');
// generate our own image tag
$dom = new \Podlove\DomDocumentFragment();
$image_tag = $dom->createElement('image');
foreach ($image as $tag_name => $tag_text) {
if ($tag_text) {
$tag = $dom->createElement($tag_name);
$tag_text = $dom->createTextNode($tag_text);
$tag->appendChild($tag_text);
$image_tag->appendChild($tag);
}
}
$dom->appendChild($image_tag);
echo (string) $dom;
}, 5);
// let it run early so we can stop the `rss2_site_icon` call
add_action($hook, function () use($podcast, $feed, $format) {
echo PHP_EOL;
$author = "\t" . sprintf('<itunes:author>%s</itunes:author>', $podcast->author_name);
echo apply_filters('podlove_feed_itunes_author', $author);
echo PHP_EOL;
$summary = "\t" . sprintf('<itunes:summary>%s</itunes:summary>', $podcast->summary);
echo apply_filters('podlove_feed_itunes_summary', $summary);
echo PHP_EOL;
$categories = \Podlove\Itunes\categories(false);
$category_html = '';
for ($i = 1; $i <= 3; $i++) {
$category_id = $podcast->{'category_' . $i};
if (!$category_id) {
continue;
}
list($cat, $subcat) = explode('-', $category_id);
if ($subcat == '00') {
$category_html .= sprintf('<itunes:category text="%s"></itunes:category>', htmlspecialchars($categories[$category_id]));
} else {
$category_html .= sprintf('<itunes:category text="%s"><itunes:category text="%s"></itunes:category></itunes:category>', htmlspecialchars($categories[$cat . '-00']), htmlspecialchars($categories[$category_id]));
}
}
echo apply_filters('podlove_feed_itunes_categories', $category_html);
echo PHP_EOL;
$owner = sprintf('
<itunes:owner>
<itunes:name>%s</itunes:name>
<itunes:email>%s</itunes:email>
</itunes:owner>', $podcast->owner_name, $podcast->owner_email);
echo "\t" . apply_filters('podlove_feed_itunes_owner', $owner);
echo PHP_EOL;
if ($podcast->cover_art()->url()) {
$coverimage = sprintf('<itunes:image href="%s" />', $podcast->cover_art()->url());
} else {
$coverimage = '';
}
echo "\t" . apply_filters('podlove_feed_itunes_image', $coverimage);
echo PHP_EOL;
$subtitle = sprintf('<itunes:subtitle>%s</itunes:subtitle>', $podcast->subtitle);
echo "\t" . apply_filters('podlove_feed_itunes_subtitle', $subtitle);
echo PHP_EOL;
$keywords = sprintf('<itunes:keywords>%s</itunes:keywords>', $podcast->keywords);
echo "\t" . apply_filters('podlove_feed_itunes_keywords', $keywords);
echo PHP_EOL;
$block = sprintf('<itunes:block>%s</itunes:block>', $feed->enable ? 'no' : 'yes');
echo "\t" . apply_filters('podlove_feed_itunes_block', $block);
echo PHP_EOL;
$explicit = sprintf('<itunes:explicit>%s</itunes:explicit>', $podcast->explicit == 2 ? 'clean' : ($podcast->explicit ? 'yes' : 'no'));
echo "\t" . apply_filters('podlove_feed_itunes_explicit', $explicit);
echo PHP_EOL;
$complete = sprintf('<itunes:complete>%s</itunes:complete>', $podcast->complete ? 'yes' : 'no');
echo apply_filters('podlove_feed_itunes_complete', $podcast->complete ? "\t{$complete}" : '');
echo PHP_EOL;
do_action('podlove_append_to_feed_head', $podcast, $feed, $format);
});
}
