<?php
/**
* Plugin Name: One Podcast Feed Manager
* Description: Custom RSS feed for the "podcast" category
* Version: 0.0.3
* Author: Victor Andeloci
* Author URI: https://github.com/victorandeloci
*/
if (!defined('ABSPATH')) {
exit;
}
/**
* Register custom feed.
*/
function onepodcast_add_feed() {
add_feed('podcast', 'onepodcast_render_feed');
}
add_action('init', 'onepodcast_add_feed');
/**
* Register settings page.
*/
function onepodcast_register_admin_menu() {
add_menu_page(
'Podcast Feed Settings',
'Podcast Feed',
'manage_options',
'onepodcast-feed-settings',
'onepodcast_render_admin_page',
'dashicons-microphone',
60
);
}
add_action('admin_menu', 'onepodcast_register_admin_menu');
/**
* Render settings page.
*/
function onepodcast_render_admin_page() {
?>
<div class="wrap">
<h1>Podcast Feed Settings</h1>
<form method="post" action="options.php">
<?php
settings_fields('onepodcast_settings_group');
do_settings_sections('onepodcast-feed-settings');
submit_button();
?>
</form>
</div>
<?php
}
/**
* Register feed settings.
*/
function onepodcast_register_settings() {
register_setting('onepodcast_settings_group', 'one_podcast_title');
register_setting('onepodcast_settings_group', 'one_podcast_description');
register_setting('onepodcast_settings_group', 'one_podcast_author');
register_setting('onepodcast_settings_group', 'one_podcast_cover_url');
register_setting('onepodcast_settings_group', 'one_podcast_explicit');
register_setting('onepodcast_settings_group', 'one_podcast_category');
register_setting('onepodcast_settings_group', 'one_podcast_subcategory');
register_setting('onepodcast_settings_group', 'one_podcast_email');
register_setting('onepodcast_settings_group', 'one_podcast_copyright');
add_settings_section('onepodcast_main_section', null, null, 'onepodcast-feed-settings');
add_settings_field('one_podcast_title', 'Podcast Title', function () {
echo '<input type="text" name="one_podcast_title" value="' . esc_attr(get_option('one_podcast_title')) . '" class="regular-text">';
}, 'onepodcast-feed-settings', 'onepodcast_main_section');
add_settings_field('one_podcast_description', 'Podcast Description', function () {
echo '<textarea name="one_podcast_description" class="large-text" rows="3">' . esc_textarea(get_option('one_podcast_description')) . '</textarea>';
}, 'onepodcast-feed-settings', 'onepodcast_main_section');
add_settings_field('one_podcast_author', 'Podcast Author', function () {
echo '<input type="text" name="one_podcast_author" value="' . esc_attr(get_option('one_podcast_author')) . '" class="regular-text">';
}, 'onepodcast-feed-settings', 'onepodcast_main_section');
add_settings_field('one_podcast_email', 'Owner Email', function () {
echo '<input type="email" name="one_podcast_email" value="' . esc_attr(get_option('one_podcast_email')) . '" class="regular-text">';
}, 'onepodcast-feed-settings', 'onepodcast_main_section');
add_settings_field('one_podcast_copyright', 'Copyright', function () {
echo '<input type="text" name="one_podcast_copyright" value="' . esc_attr(get_option('one_podcast_copyright')) . '" class="regular-text">';
}, 'onepodcast-feed-settings', 'onepodcast_main_section');
add_settings_field('one_podcast_cover_url', 'Cover Image URL', function () {
echo '<input type="text" name="one_podcast_cover_url" value="' . esc_url(get_option('one_podcast_cover_url')) . '" class="regular-text">';
}, 'onepodcast-feed-settings', 'onepodcast_main_section');
add_settings_field('one_podcast_explicit', 'Explicit Content?', function () {
$value = get_option('one_podcast_explicit', 'No');
echo '<select name="one_podcast_explicit">
<option value="No" ' . selected($value, 'No', false) . '>No</option>
<option value="Yes" ' . selected($value, 'Yes', false) . '>Yes</option>
<option value="Clean" ' . selected($value, 'Clean', false) . '>Clean</option>
</select>';
}, 'onepodcast-feed-settings', 'onepodcast_main_section');
add_settings_field('one_podcast_category', 'iTunes Category', function () {
echo '<input type="text" name="one_podcast_category" value="' . esc_attr(get_option('one_podcast_category')) . '" class="regular-text" placeholder="e.g., Leisure">';
}, 'onepodcast-feed-settings', 'onepodcast_main_section');
add_settings_field('one_podcast_subcategory', 'iTunes Subcategory', function () {
echo '<input type="text" name="one_podcast_subcategory" value="' . esc_attr(get_option('one_podcast_subcategory')) . '" class="regular-text" placeholder="e.g., Video Games">';
}, 'onepodcast-feed-settings', 'onepodcast_main_section');
}
add_action('admin_init', 'onepodcast_register_settings');
/**
* Render the RSS feed.
*/
function onepodcast_render_feed() {
header('Content-Type: application/rss+xml; charset=' . get_option('blog_charset'), true);
echo '<?xml version="1.0" encoding="' . get_option('blog_charset') . '"?' . '>';
$title = get_option('one_podcast_title', get_bloginfo('name'));
$description = get_option('one_podcast_description', get_bloginfo('description'));
$author = get_option('one_podcast_author', get_bloginfo('name'));
$email = get_option('one_podcast_email');
$cover = get_option('one_podcast_cover_url');
$explicit = get_option('one_podcast_explicit', 'No');
$category = get_option('one_podcast_category', 'Leisure');
$subcategory = get_option('one_podcast_subcategory', 'Video Games');
$copyright = get_option('one_podcast_copyright', get_bloginfo('name'));
$site_url = get_bloginfo('url');
$feed_url = $site_url . '/feed/podcast';
$language = get_bloginfo('language');
?>
<rss xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:content="http://purl.org/rss/1.0/modules/content/"
xmlns:atom="http://www.w3.org/2005/Atom"
version="2.0"
xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd"
xmlns:anchor="https://anchor.fm/xmlns">
<channel>
<title><![CDATA[<?php echo esc_html($title); ?>]]></title>
<description><![CDATA[<?php echo esc_html($description); ?>]]></description>
<link><?php echo esc_url($site_url); ?></link>
<image>
<url><?php echo esc_url($cover); ?></url>
<title><?php echo esc_html($title); ?></title>
<link><?php echo esc_url($site_url); ?></link>
</image>
<generator>One Podcast Feed Manager</generator>
<lastBuildDate><?php echo date(DATE_RSS); ?></lastBuildDate>
<atom:link href="<?php echo esc_url($feed_url); ?>" rel="self" type="application/rss+xml"/>
<author><![CDATA[<?php echo esc_html($author); ?>]]></author>
<copyright><![CDATA[<?php echo esc_html($copyright); ?>]]></copyright>
<language><![CDATA[<?php echo esc_html($language); ?>]]></language>
<atom:link rel="hub" href="https://pubsubhubbub.appspot.com/"/>
<itunes:author><?php echo esc_html($author); ?></itunes:author>
<itunes:summary><![CDATA[<?php echo esc_html($description); ?>]]></itunes:summary>
<itunes:type>episodic</itunes:type>
<itunes:owner>
<itunes:name><?php echo esc_html($author); ?></itunes:name>
<?php if ($email): ?>
<itunes:email><?php echo esc_html($email); ?></itunes:email>
<?php endif; ?>
</itunes:owner>
<itunes:explicit><?php echo esc_html($explicit); ?></itunes:explicit>
<itunes:category text="<?php echo esc_attr($category); ?>">
<itunes:category text="<?php echo esc_attr($subcategory); ?>"/>
</itunes:category>
<?php if ($cover): ?>
<itunes:image href="<?php echo esc_url($cover); ?>"/>
<?php endif; ?>
<?php
$args = [
'category_name' => 'podcast',
'post_type' => 'post',
'orderby' => 'date',
'order' => 'DESC',
'posts_per_page' => -1
];
$query = new WP_Query($args);
while ($query->have_posts()) : $query->the_post();
$post_id = get_the_ID();
$audio_file_url = get_post_meta($post_id, 'episode_mp3_url', true);
if (!$audio_file_url) {
$audio_file_url = get_post_meta($post_id, 'anchor_mp3_url', true);
}
if (!$audio_file_url) {
continue;
}
$episode_cover = get_post_meta($post_id, 'episode_cover', true);
if (empty($episode_cover))
$episode_cover = get_the_post_thumbnail_url();
$duration = get_post_meta($post_id, 'episode_duration', true);
$episode_number = get_post_meta($post_id, 'episode_number', true);
$episode_season = get_post_meta($post_id, 'episode_season', true);
$episode_type = get_post_meta($post_id, 'episode_type', true);
$explicit = get_post_meta($post_id, 'episode_explicit', true) ?: 'No';
$pub_date = get_the_date(DATE_RSS);
$guid = get_post_meta($post_id, 'episode_guid', true) ?: get_permalink();
$title = get_the_title();
$content = get_the_content_feed('rss2');
$filesize = 0;
$headers = wp_remote_head($audio_file_url);
if (!is_wp_error($headers)) {
$filesize = isset($headers['headers']['content-length']) ? $headers['headers']['content-length'] : 0;
}
?>
<item>
<title><![CDATA[<?php echo esc_html($title); ?>]]></title>
<description><![CDATA[<?php echo preg_replace('/\s+/', ' ', wp_strip_all_tags($content)); ?>]]></description>
<link><?php echo esc_url(get_permalink()); ?></link>
<guid isPermaLink="false"><?php echo esc_html($guid); ?></guid>
<dc:creator><![CDATA[<?php echo esc_html($author); ?>]]></dc:creator>
<pubDate><?php echo esc_html($pub_date); ?></pubDate>
<enclosure url="<?php echo esc_url($audio_file_url); ?>" length="<?php echo esc_attr($filesize); ?>" type="audio/mpeg"/>
<itunes:summary><![CDATA[<?php echo preg_replace('/\s+/', ' ', wp_strip_all_tags($content)); ?>]]></itunes:summary>
<itunes:explicit><?php echo esc_html($explicit); ?></itunes:explicit>
<?php if ($duration): ?>
<itunes:duration><?php echo esc_html($duration); ?></itunes:duration>
<?php endif; ?>
<?php if ($episode_cover): ?>
<itunes:image href="<?php echo esc_url($episode_cover); ?>"/>
<?php endif; ?>
<?php if ($episode_season): ?>
<itunes:season><?php echo esc_html($episode_season); ?></itunes:season>
<?php endif; ?>
<?php if ($episode_number): ?>
<itunes:episode><?php echo esc_html($episode_number); ?></itunes:episode>
<?php endif; ?>
<?php if ($episode_type): ?>
<itunes:episodeType><?php echo esc_html($episode_type); ?></itunes:episodeType>
<?php endif; ?>
</item>
<?php endwhile; wp_reset_postdata(); ?>
</channel>
</rss>
<?php
}
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