244 lines
6.7 KiB
PHP
244 lines
6.7 KiB
PHP
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<?php
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namespace Activitypub\Collection;
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use WP_Error;
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use WP_Comment_Query;
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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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* 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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if ( ! isset( $activity['object']['inReplyTo'] ) ) {
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return false;
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}
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$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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// 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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// not a reply to a post or comment
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if ( ! $comment_post_id ) {
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return false;
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}
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$meta = get_remote_metadata_by_actor( $activity['actor'] );
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if ( ! $meta || \is_wp_error( $meta ) ) {
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return false;
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}
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$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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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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if ( isset( $activity['object']['url'] ) ) {
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$commentdata['comment_meta']['source_url'] = \esc_url_raw( $activity['object']['url'] );
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}
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// disable flood control
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\remove_action( 'check_comment_flood', 'check_comment_flood_db', 10 );
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// do not require email for AP entries
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\add_filter( 'pre_option_require_name_email', '__return_false' );
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// No nonce possible for this submission route
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\add_filter(
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'akismet_comment_nonce',
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function () {
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return 'inactive';
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}
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);
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\add_filter( 'wp_kses_allowed_html', array( self::class, 'allowed_comment_html' ), 10, 2 );
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$comment = \wp_new_comment( $commentdata, true );
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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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return $comment;
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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( $activity['actor'] );
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//Determine comment_ID
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$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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if ( ! $commentdata ) {
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return false;
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}
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//found a local comment id
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$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( $meta['icon']['url'] );
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}
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// disable flood control
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\remove_action( 'check_comment_flood', 'check_comment_flood_db', 10 );
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// do not require email for AP entries
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\add_filter( 'pre_option_require_name_email', '__return_false' );
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// No nonce possible for this submission route
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\add_filter(
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'akismet_comment_nonce',
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function () {
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return 'inactive';
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}
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);
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\add_filter( 'wp_kses_allowed_html', array( self::class, 'allowed_comment_html' ), 10, 2 );
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$state = \wp_update_comment( $commentdata, true );
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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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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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* 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' => $url,
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),
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),
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),
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);
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$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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* 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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// 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 = $meta['url'];
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}
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$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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* 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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// 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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if ( ! array_key_exists( 'p', $allowed_tags ) ) {
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$allowed_tags['p'] = array();
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}
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return $allowed_tags;
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}
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}
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