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<?php
/**
* Podlove Podcast Publisher integration file.
*
* @package Activitypub
*/
namespace Activitypub\Integration;
use Activitypub\Transformer\Post;
use function Activitypub\object_to_uri;
use function Activitypub\seconds_to_iso8601;
/**
* Compatibility with the Podlove Podcast Publisher plugin.
*
* This is a transformer for the Podlove Podcast Publisher plugin,
* that extends the default transformer for WordPress posts.
*
* @see https://wordpress.org/plugins/podlove-podcasting-plugin-for-wordpress/
*/
class Podlove_Podcast_Publisher extends Post {
/**
* The Podlove Episode object.
*
* @var \Podlove\Model\Episode|null
*/
private $episode = null;
/**
* Get the Podlove Episode object.
*
* @return \Podlove\Model\Episode|null The episode object or null if not found.
*/
protected function get_episode() {
if ( null === $this->episode && \class_exists( '\Podlove\Model\Episode' ) ) {
$this->episode = \Podlove\Model\Episode::find_one_by_post_id( $this->item->ID );
}
return $this->episode;
}
/**
* Returns the summary for the ActivityPub Item.
*
* @return string|null The summary or null.
*/
protected function get_summary() {
$episode = $this->get_episode();
// Notes carry no summary, so there is nothing to override for them.
if ( $episode && 'Note' !== $this->get_type() ) {
// Sanitize like generate_post_summary() does, since Podlove stores the summary as raw user input.
$summary = \strip_shortcodes( (string) $episode->summary );
$summary = \wp_strip_all_tags( $summary );
$summary = \trim( \html_entity_decode( $summary, ENT_QUOTES, 'UTF-8' ) );
// Federate the episode summary explicitly; Podlove keeps it out of post_content.
if ( '' !== $summary ) {
return $summary;
}
}
return parent::get_summary();
}
/**
* Gets the attachment for a podcast episode.
*
* This method is overridden to add the audio/video files as attachments.
*
* @return array The attachments array.
*/
public function get_attachment() {
$episode = $this->get_episode();
if ( ! $episode ) {
return parent::get_attachment();
}
$attachments = array();
// Get media files from Podlove.
$media_files = $episode->media_files();
foreach ( $media_files as $media_file ) {
if ( ! $media_file->is_valid() ) {
continue;
}
$episode_asset = $media_file->episode_asset();
if ( ! $episode_asset ) {
continue;
}
$file_type = $episode_asset->file_type();
if ( ! $file_type ) {
continue;
}
// Only include audio and video files.
if ( ! \in_array( $file_type->type, array( 'audio', 'video' ), true ) ) {
continue;
}
// Use tracking URL if analytics is enabled, otherwise direct file URL.
if ( 'ptm_analytics' === \Podlove\get_setting( 'tracking', 'mode' ) ) {
$file_url = $media_file->get_public_file_url( 'activitypub' );
} else {
$file_url = $media_file->get_file_url();
}
$attachment = array(
'type' => \esc_attr( \ucfirst( $file_type->type ) ),
'url' => \esc_url_raw( $file_url ),
'mediaType' => \esc_attr( $file_type->mime_type ),
'name' => \esc_attr( $episode->title() ?? '' ),
);
// Add duration if available (in ISO 8601 format).
$duration = $episode->get_duration( 'seconds' );
if ( $duration && \is_numeric( $duration ) && (int) $duration > 0 ) {
$attachment['duration'] = seconds_to_iso8601( (int) $duration );
}
$attachments[] = $attachment;
}
// If we have media files, add episode image as icon.
if ( ! empty( $attachments ) ) {
$icon = $this->get_episode_image();
if ( $icon ) {
foreach ( $attachments as $key => $attachment ) {
$attachments[ $key ]['icon'] = \esc_url_raw( $icon );
}
}
}
// If no Podlove media files found, fall back to parent.
if ( empty( $attachments ) ) {
return parent::get_attachment();
}
return $attachments;
}
/**
* Get the episode image URL.
*
* @return string|null The image URL or null if not found.
*/
protected function get_episode_image() {
$episode = $this->get_episode();
if ( ! $episode ) {
return null;
}
$image = $episode->cover_art_with_fallback();
if ( $image && \method_exists( $image, 'url' ) ) {
return $image->url();
}
// Fall back to post thumbnail.
$icon = $this->get_icon();
if ( $icon ) {
return object_to_uri( $icon );
}
return null;
}
/**
* Get the duration of the episode in ISO 8601 format.
*
* @return string|null The duration in ISO 8601 format or null if not available.
*/
public function get_duration() {
$episode = $this->get_episode();
if ( ! $episode ) {
return null;
}
$duration_seconds = $episode->get_duration( 'seconds' );
// Ensure we have a valid numeric duration.
if ( ! $duration_seconds || ! \is_numeric( $duration_seconds ) ) {
return null;
}
$duration_seconds = (int) $duration_seconds;
if ( $duration_seconds <= 0 ) {
return null;
}
return seconds_to_iso8601( $duration_seconds );
}
}