#is', $protect, $the_content ); $the_content = preg_replace_callback( '#<(pre|code|textarea|style)\b[^>]*>.*?]*>#is', $protect, $the_content ); $the_content = preg_replace_callback( '#]+>.*?#i', $protect, $the_content ); $the_content = \preg_replace_callback( '/@' . ACTIVITYPUB_USERNAME_REGEXP . '/', array( '\Activitypub\Mention', 'replace_with_links' ), $the_content ); $the_content = str_replace( array_reverse( array_keys( $protected_tags ) ), array_reverse( array_values( $protected_tags ) ), $the_content ); return $the_content; } /** * A callback for preg_replace to build the user links * * @param array $result the preg_match results * @return string the final string */ public static function replace_with_links( $result ) { $metadata = \ActivityPub\get_remote_metadata_by_actor( $result[0] ); if ( ! is_wp_error( $metadata ) && ! empty( $metadata['url'] ) ) { $username = ltrim( $result[0], '@' ); if ( ! empty( $metadata['name'] ) ) { $username = $metadata['name']; } if ( ! empty( $metadata['preferredUsername'] ) ) { $username = $metadata['preferredUsername']; } $username = '@' . $username . ''; return \sprintf( '%s', $metadata['url'], $username ); } return $result[0]; } /** * Extract the mentions from the post_content. * * @param array $mentions The already found mentions. * @param string $post_content The post content. * @return mixed The discovered mentions. */ public static function extract_mentions( $mentions, $post_content ) { \preg_match_all( '/@' . ACTIVITYPUB_USERNAME_REGEXP . '/i', $post_content, $matches ); foreach ( $matches[0] as $match ) { $link = \Activitypub\Webfinger::resolve( $match ); if ( ! is_wp_error( $link ) ) { $mentions[ $match ] = $link; } } return $mentions; } }