Addon plugin for Seriously Simple Podcasting; includes private podcasts in feed URL

a-seriously-simple-private-podcasting.php

<?php
/*
 * Plugin Name: Seriously Simple Private Podcasting
 * Plugin URL: https://gist.github.com/macbookandrew/b3e08a9e35a44526e47ecb35d1113c8f
 * Description: Include posts marked “private” in podcast feed. Note: activate this <strong>first</strong>, then the Seriously Simple Podcasting plugin.
 * Version: 1.0.2
 * Author: AndrewRMinion Design
 * Author URI: https://andrewrminion.com
 */

if (!defined('ABSPATH')) {
    exit;
}

/**
 * Get post IDs of all podcast episodes for all post types
 *
 * Overrides ssp_episode_ids function in main plugin
 *
 * @since  1.8.2
 * @return array
 */
function ssp_episode_ids() {
    global $ss_podcasting;

    // Remove action to prevent infinite loop
    remove_action( 'pre_get_posts', array( $ss_podcasting, 'add_all_post_types' ) );

    // Setup the default args
    $args = array(
        'post_type'      => array( 'podcast' ),
        'post_status'    => array( 'publish', 'private' ),
        'posts_per_page' => -1,
        'fields'         => 'ids',
    );

    // Do we have any additional post types to add?
    $podcast_post_types = ssp_post_types( false );

    if ( ! empty( $podcast_post_types ) ) {
        $args['post_type']  = ssp_post_types();
        $args['meta_query'] = array(
            array(
                'key'     => apply_filters( 'ssp_audio_file_meta_key', 'audio_file' ),
                'compare' => '!=',
                'value'   => '',
            ),
        );
    }

    // Do we have this stored in the cache?
    $key   = 'episode_ids';
    $group = 'ssp';
    $podcast_episodes = wp_cache_get( $key, $group );

    // If nothing in cache then fetch episodes again and store in cache
    if ( $podcast_episodes === false ) {
        $podcast_episodes = get_posts( $args );
        wp_cache_set( $key, $podcast_episodes, $group, HOUR_IN_SECONDS * 12 );
    }

    // Reinstate action for future queries
    add_action( 'pre_get_posts', array( $ss_podcasting, 'add_all_post_types' ) );

    return $podcast_episodes;
}

/**
 * Add private posts to the podcast list
 * @param  array  $args    array of WPQuery args
 * @return array  array of WPQuery args
 */
function ssp_private_add_private_podcast_episodes( $args ) {
    $args['post_status'] = array( 'publish', 'private' );
    return $args;
}
add_filter( 'ssp_episode_query_args', 'ssp_private_add_private_podcast_episodes' );

/**
 * Include private podcasts in search
 * @param [[Type]] $query [[Description]]
 */
function ssp_private_include_private_in_search( $query ) {
    if ( $query->is_search() && is_user_logged_in() ) {
        $query->set( 'post_status', array( 'publish', 'private' ) );
    }
}
add_action( 'pre_get_posts', 'ssp_private_include_private_in_search' );

/**
 * Remove “Private:” from private posts
 * @param  string $content title
 * @return string title
 */
function ssp_private_private_title_format( $content ) {
    return '%s';
}
add_filter( 'private_title_format', 'ssp_private_private_title_format' );
add_filter( 'protected_title_format', 'ssp_private_private_title_format' );

/**
 * Allow subscribers to view private podcasts
 */
function ssp_private_allow_subscribers_private_access() {
    $subscriber = get_role( 'subscriber' );
    $subscriber->add_cap( 'read_private_posts' );
    $subscriber->add_cap( 'read_private_pages' );
}
add_action( 'init', 'ssp_private_allow_subscribers_private_access' );

/**
 * Make podcasts private by default
 */
function ssp_private_default_post_visibility() {
    global $post;

    if ( 'publish' == $post->post_status ) {
        $visibility = 'public';
        $visibility_trans = __( 'Public' );
    } elseif ( !empty( $post->post_password ) ) {
        $visibility = 'password';
        $visibility_trans = __( 'Password protected' );
    } elseif ( $post->post_type == 'podcast' && is_sticky( $post->ID ) ) {
        $visibility = 'public';
        $visibility_trans = __( 'Public, Sticky' );
    } else {
        $post->post_password = '';
        $visibility = 'private';
        $visibility_trans = __( 'Private' );
    } ?>

    <script type='text/javascript'>
        (function($) {
            try {
                $('#post-visibility-display').text('<?php echo $visibility_trans; ?>');
                $('#hidden-post-visibility').val('<?php echo $visibility; ?>');
                $('#visibility-radio-<?php echo $visibility; ?>').attr('checked', true);
            } catch(e) {}
        })(jQuery);
    </script>
    <?php
}
add_action( 'post_submitbox_misc_actions' , 'ssp_private_default_post_visibility' );

Changelog

• 1.1.5: fix drafts view in admin
• 1.1.4: prevent subscribers from seeing future scheduled posts
• 1.1.3: fix PHPCS issues
• 1.1.2: don’t make posts private by default since that breaks scheduling
• 1.1.1: remove need to activate this before parent plugin
• 1.1.0: fix private-by-default issues
• 1.0.2: make posts private by default
• 1.0.1: include private podcasts in searches if user is logged in
• 1.0.0: initial plugin