wordpress-activitypub/includes/class-comments.php

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<?php
namespace Activitypub;
/**
* Comments Class
*
* @author Django
*/
class Comments {
/**
* Initialize the class, registering WordPress hooks.
*/
public static function init() {
\add_filter( 'preprocess_comment', array( '\Activitypub\Comments', 'preprocess_comment' ) );
\add_filter( 'comment_post', array( '\Activitypub\Comments', 'postprocess_comment' ), 10, 3 );
\add_filter( 'wp_update_comment_data', array( '\Activitypub\Comments', 'comment_updated_published' ), 20, 3 );
\add_action( 'transition_comment_status', array( '\Activitypub\Comments', 'schedule_comment_activity' ), 20, 3 );
\add_action( 'edit_comment', array( '\Activitypub\Comments', 'edit_comment' ), 20, 2 );//schedule_admin_comment_activity
\add_filter( 'get_comment_text', array( '\Activitypub\Comments', 'comment_append_edit_datetime' ), 10, 3 );
}
/**
* preprocess_comment()
* preprocess local comments for federated replies
*/
public static function preprocess_comment( $commentdata ) {
// only process replies from local actors
if ( ! empty( $commentdata['user_id'] ) ) {
$commentdata['comment_type'] = 'activitypub';
// transform webfinger mentions to links and add @mentions to cc
$tagged_content = \Activitypub\transform_tags( $commentdata['comment_content'] );
$commentdata['comment_content'] = $tagged_content['content'];
$commentdata['comment_meta']['mentions'] = $tagged_content['mentions'];
}
return $commentdata;
}
/**
* comment_post()
* postprocess_comment for federating replies and inbox-forwarding
*/
public static function postprocess_comment( $comment_id, $comment_approved, $commentdata ) {
//Admin users comments bypass transition_comment_status (auto approved)
$user = \get_userdata( $commentdata['user_id'] );
if ( 'activitypub' === $commentdata['comment_type'] ) {
if (
( 1 === $comment_approved ) &&
! empty( $commentdata['user_id'] ) &&
\in_array( 'administrator', $user->roles )
) {
// Only for Admins
$mentions = \get_comment_meta( $comment_id, 'mentions', true );
\wp_schedule_single_event( \time(), 'activitypub_send_comment_activity', array( $comment_id ) );
}
}
}
/**
* edit_comment()
*
* Fires immediately after a comment is updated in the database.
* Fires immediately before comment status transition hooks are fired. (useful only for admin)
*/
public static function edit_comment( $comment_id, $data ) {
if ( ! is_null( $data['user_id'] ) ) {
\wp_schedule_single_event( \time(), 'activitypub_send_update_comment_activity', array( $comment_id ) );
}
}
/**
* Schedule Activities
*
* transition_comment_status()
* @param int $comment
*/
public static function schedule_comment_activity( $new_status, $old_status, $activitypub_comment ) {
if ( 'approved' === $new_status && 'approved' !== $old_status ) {
//should only federate replies from local actors
//should only federate replies to federated actors
$ap_object = unserialize( \get_comment_meta( $activitypub_comment->comment_ID, 'ap_object', true ) );
if ( empty( $ap_object ) ) {
\wp_schedule_single_event( \time(), 'activitypub_send_comment_activity', array( $activitypub_comment->comment_ID ) );
} else {
$local_user = \get_author_posts_url( $ap_object['user_id'] );
if ( ! is_null( $local_user ) ) {
if ( in_array( $local_user, $ap_object['to'] )
|| in_array( $local_user, $ap_object['cc'] )
|| in_array( $local_user, $ap_object['audience'] )
|| in_array( $local_user, $ap_object['tag'] )
) {
//if inReplyTo, object, target and/or tag are (local-wp) objects
\wp_schedule_single_event( \time(), 'activitypub_inbox_forward_activity', array( $activitypub_comment->comment_ID ) );
}
}
}
} elseif ( 'trash' === $new_status ) {
\wp_schedule_single_event( \time(), 'activitypub_send_delete_comment_activity', array( $activitypub_comment ) );
} elseif ( $old_status === $new_status ) {
//TODO Test with non-admin user
\wp_schedule_single_event( \time(), 'activitypub_send_update_comment_activity', array( $activitypub_comment->comment_ID ) );
}
}
/**
* get_comment_text( $comment )
*
* Filters the comment content before it is updated in the database.
*/
public static function comment_append_edit_datetime( $comment_text, $comment, $args ) {
if ( 'activitypub' === $comment->comment_type ) {
$updated = \wp_date( 'Y-m-d H:i:s', \strtotime( \get_comment_meta( $comment->comment_ID, 'ap_last_modified', true ) ) );
if ( $updated ) {
$append_updated = "<div>(Last edited on <time class='modified' datetime='{$updated}'>$updated</time>)</div>";
$comment_text .= $append_updated;
}
}
return $comment_text;
}
}