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<?php |
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namespace Activitypub\Collection; |
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|
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use WP_Error; |
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use WP_Comment_Query; |
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|
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use function Activitypub\object_to_uri; |
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use function Activitypub\url_to_commentid; |
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use function Activitypub\object_id_to_comment; |
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use function Activitypub\get_remote_metadata_by_actor; |
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|
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/** |
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* ActivityPub Interactions Collection |
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*/ |
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class Interactions { |
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/** |
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* Add a comment to a post |
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* |
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* @param array $activity The activity-object |
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* |
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* @return array|false The commentdata or false on failure |
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*/ |
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public static function add_comment( $activity ) { |
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if ( |
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! isset( $activity['object'] ) || |
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! isset( $activity['object']['id'] ) |
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) { |
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return false; |
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} |
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|
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if ( ! isset( $activity['object']['inReplyTo'] ) ) { |
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return false; |
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} |
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|
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$in_reply_to = \esc_url_raw( $activity['object']['inReplyTo'] ); |
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$comment_post_id = \url_to_postid( $in_reply_to ); |
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$parent_comment_id = url_to_commentid( $in_reply_to ); |
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|
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// save only replys and reactions |
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if ( ! $comment_post_id && $parent_comment_id ) { |
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$parent_comment = get_comment( $parent_comment_id ); |
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$comment_post_id = $parent_comment->comment_post_ID; |
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} |
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|
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// not a reply to a post or comment |
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if ( ! $comment_post_id ) { |
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return false; |
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} |
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|
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$actor = object_to_uri( $activity['actor'] ); |
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$meta = get_remote_metadata_by_actor( $actor ); |
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|
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if ( ! $meta || \is_wp_error( $meta ) ) { |
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return false; |
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} |
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|
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$commentdata = array( |
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'comment_post_ID' => $comment_post_id, |
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'comment_author' => isset( $meta['name'] ) ? \esc_attr( $meta['name'] ) : \esc_attr( $meta['preferredUsername'] ), |
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'comment_author_url' => \esc_url_raw( $meta['url'] ), |
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'comment_content' => \addslashes( $activity['object']['content'] ), |
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'comment_type' => 'comment', |
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'comment_author_email' => '', |
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'comment_parent' => $parent_comment_id ? $parent_comment_id : 0, |
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'comment_meta' => array( |
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'source_id' => \esc_url_raw( $activity['object']['id'] ), |
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'protocol' => 'activitypub', |
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), |
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); |
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|
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if ( isset( $meta['icon']['url'] ) ) { |
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$commentdata['comment_meta']['avatar_url'] = \esc_url_raw( $meta['icon']['url'] ); |
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} |
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|
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if ( isset( $activity['object']['url'] ) ) { |
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$commentdata['comment_meta']['source_url'] = \esc_url_raw( $activity['object']['url'] ); |
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} |
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|
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// disable flood control |
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\remove_action( 'check_comment_flood', 'check_comment_flood_db', 10 ); |
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// do not require email for AP entries |
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\add_filter( 'pre_option_require_name_email', '__return_false' ); |
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// No nonce possible for this submission route |
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\add_filter( |
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'akismet_comment_nonce', |
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function () { |
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return 'inactive'; |
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} |
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); |
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\add_filter( 'wp_kses_allowed_html', array( self::class, 'allowed_comment_html' ), 10, 2 ); |
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|
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$comment = \wp_new_comment( $commentdata, true ); |
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|
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\remove_filter( 'wp_kses_allowed_html', array( self::class, 'allowed_comment_html' ), 10 ); |
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\remove_filter( 'pre_option_require_name_email', '__return_false' ); |
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// re-add flood control |
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\add_action( 'check_comment_flood', 'check_comment_flood_db', 10, 4 ); |
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|
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return $comment; |
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} |
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|
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/** |
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* Update a comment |
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* |
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* @param array $activity The activity-object |
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* |
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* @return array|string|int|\WP_Error|false The commentdata or false on failure |
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*/ |
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public static function update_comment( $activity ) { |
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$meta = get_remote_metadata_by_actor( $activity['actor'] ); |
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|
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//Determine comment_ID |
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$comment = object_id_to_comment( \esc_url_raw( $activity['object']['id'] ) ); |
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$commentdata = \get_comment( $comment, ARRAY_A ); |
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|
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if ( ! $commentdata ) { |
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return false; |
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} |
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|
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//found a local comment id |
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$commentdata['comment_author'] = \esc_attr( $meta['name'] ? $meta['name'] : $meta['preferredUsername'] ); |
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$commentdata['comment_content'] = \addslashes( $activity['object']['content'] ); |
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if ( isset( $meta['icon']['url'] ) ) { |
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$commentdata['comment_meta']['avatar_url'] = \esc_url_raw( $meta['icon']['url'] ); |
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} |
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|
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// disable flood control |
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\remove_action( 'check_comment_flood', 'check_comment_flood_db', 10 ); |
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// do not require email for AP entries |
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\add_filter( 'pre_option_require_name_email', '__return_false' ); |
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// No nonce possible for this submission route |
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\add_filter( |
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'akismet_comment_nonce', |
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function () { |
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return 'inactive'; |
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} |
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); |
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\add_filter( 'wp_kses_allowed_html', array( self::class, 'allowed_comment_html' ), 10, 2 ); |
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|
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$state = \wp_update_comment( $commentdata, true ); |
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|
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\remove_filter( 'wp_kses_allowed_html', array( self::class, 'allowed_comment_html' ), 10 ); |
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\remove_filter( 'pre_option_require_name_email', '__return_false' ); |
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// re-add flood control |
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\add_action( 'check_comment_flood', 'check_comment_flood_db', 10, 4 ); |
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|
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if ( 1 === $state ) { |
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return $commentdata; |
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} else { |
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return $state; // Either `false` or a `WP_Error` instance or `0` or `1`! |
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} |
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} |
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|
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/** |
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* Get interaction(s) for a given URL/ID. |
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* |
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* @param strin $url The URL/ID to get interactions for. |
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* |
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* @return array The interactions as WP_Comment objects. |
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*/ |
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public static function get_interaction_by_id( $url ) { |
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$args = array( |
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'nopaging' => true, |
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// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query |
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'meta_query' => array( |
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'relation' => 'AND', |
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array( |
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'key' => 'protocol', |
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'value' => 'activitypub', |
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), |
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array( |
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'relation' => 'OR', |
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array( |
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'key' => 'source_url', |
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'value' => $url, |
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), |
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array( |
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'key' => 'source_id', |
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'value' => $url, |
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), |
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), |
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), |
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); |
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|
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$query = new WP_Comment_Query( $args ); |
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return $query->comments; |
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} |
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|
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/** |
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* Get interaction(s) for a given actor. |
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* |
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* @param string $actor The Actor-URL. |
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* |
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* @return array The interactions as WP_Comment objects. |
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*/ |
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public static function get_interactions_by_actor( $actor ) { |
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$meta = get_remote_metadata_by_actor( $actor ); |
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|
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// get URL, because $actor seems to be the ID |
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if ( $meta && ! is_wp_error( $meta ) && isset( $meta['url'] ) ) { |
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$actor = $meta['url']; |
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} |
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|
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$args = array( |
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'nopaging' => true, |
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'author_url' => $actor, |
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// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query |
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'meta_query' => array( |
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array( |
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'key' => 'protocol', |
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'value' => 'activitypub', |
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'compare' => '=', |
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), |
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), |
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); |
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$comment_query = new WP_Comment_Query( $args ); |
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return $comment_query->comments; |
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} |
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|
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/** |
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* Adds line breaks to the list of allowed comment tags. |
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* |
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* @param array $allowed_tags Allowed HTML tags. |
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* @param string $context Context. |
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* |
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* @return array Filtered tag list. |
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*/ |
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public static function allowed_comment_html( $allowed_tags, $context = '' ) { |
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if ( 'pre_comment_content' !== $context ) { |
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// Do nothing. |
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return $allowed_tags; |
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} |
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|
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// Add `p` and `br` to the list of allowed tags. |
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if ( ! array_key_exists( 'br', $allowed_tags ) ) { |
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$allowed_tags['br'] = array(); |
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} |
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|
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if ( ! array_key_exists( 'p', $allowed_tags ) ) { |
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$allowed_tags['p'] = array(); |
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} |
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|
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return $allowed_tags; |
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} |
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} |
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|
