diff -r 490d5cc509ed -r cf61fcea0001 wp/wp-includes/embed.php --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/wp/wp-includes/embed.php Mon Oct 14 17:39:30 2019 +0200 @@ -0,0 +1,1130 @@ +register_handler( $id, $regex, $callback, $priority ); +} + +/** + * Unregisters a previously-registered embed handler. + * + * @since 2.9.0 + * + * @global WP_Embed $wp_embed + * + * @param string $id The handler ID that should be removed. + * @param int $priority Optional. The priority of the handler to be removed. Default 10. + */ +function wp_embed_unregister_handler( $id, $priority = 10 ) { + global $wp_embed; + $wp_embed->unregister_handler( $id, $priority ); +} + +/** + * Creates default array of embed parameters. + * + * The width defaults to the content width as specified by the theme. If the + * theme does not specify a content width, then 500px is used. + * + * The default height is 1.5 times the width, or 1000px, whichever is smaller. + * + * The {@see 'embed_defaults'} filter can be used to adjust either of these values. + * + * @since 2.9.0 + * + * @global int $content_width + * + * @param string $url Optional. The URL that should be embedded. Default empty. + * + * @return array Default embed parameters. + */ +function wp_embed_defaults( $url = '' ) { + if ( ! empty( $GLOBALS['content_width'] ) ) + $width = (int) $GLOBALS['content_width']; + + if ( empty( $width ) ) + $width = 500; + + $height = min( ceil( $width * 1.5 ), 1000 ); + + /** + * Filters the default array of embed dimensions. + * + * @since 2.9.0 + * + * @param array $size An array of embed width and height values + * in pixels (in that order). + * @param string $url The URL that should be embedded. + */ + return apply_filters( 'embed_defaults', compact( 'width', 'height' ), $url ); +} + +/** + * Attempts to fetch the embed HTML for a provided URL using oEmbed. + * + * @since 2.9.0 + * + * @see WP_oEmbed + * + * @param string $url The URL that should be embedded. + * @param array $args Optional. Additional arguments and parameters for retrieving embed HTML. + * Default empty. + * @return false|string False on failure or the embed HTML on success. + */ +function wp_oembed_get( $url, $args = '' ) { + $oembed = _wp_oembed_get_object(); + return $oembed->get_html( $url, $args ); +} + +/** + * Returns the initialized WP_oEmbed object. + * + * @since 2.9.0 + * @access private + * + * @staticvar WP_oEmbed $wp_oembed + * + * @return WP_oEmbed object. + */ +function _wp_oembed_get_object() { + static $wp_oembed = null; + + if ( is_null( $wp_oembed ) ) { + $wp_oembed = new WP_oEmbed(); + } + return $wp_oembed; +} + +/** + * Adds a URL format and oEmbed provider URL pair. + * + * @since 2.9.0 + * + * @see WP_oEmbed + * + * @param string $format The format of URL that this provider can handle. You can use asterisks + * as wildcards. + * @param string $provider The URL to the oEmbed provider. + * @param boolean $regex Optional. Whether the `$format` parameter is in a RegEx format. Default false. + */ +function wp_oembed_add_provider( $format, $provider, $regex = false ) { + if ( did_action( 'plugins_loaded' ) ) { + $oembed = _wp_oembed_get_object(); + $oembed->providers[$format] = array( $provider, $regex ); + } else { + WP_oEmbed::_add_provider_early( $format, $provider, $regex ); + } +} + +/** + * Removes an oEmbed provider. + * + * @since 3.5.0 + * + * @see WP_oEmbed + * + * @param string $format The URL format for the oEmbed provider to remove. + * @return bool Was the provider removed successfully? + */ +function wp_oembed_remove_provider( $format ) { + if ( did_action( 'plugins_loaded' ) ) { + $oembed = _wp_oembed_get_object(); + + if ( isset( $oembed->providers[ $format ] ) ) { + unset( $oembed->providers[ $format ] ); + return true; + } + } else { + WP_oEmbed::_remove_provider_early( $format ); + } + + return false; +} + +/** + * Determines if default embed handlers should be loaded. + * + * Checks to make sure that the embeds library hasn't already been loaded. If + * it hasn't, then it will load the embeds library. + * + * @since 2.9.0 + * + * @see wp_embed_register_handler() + */ +function wp_maybe_load_embeds() { + /** + * Filters whether to load the default embed handlers. + * + * Returning a falsey value will prevent loading the default embed handlers. + * + * @since 2.9.0 + * + * @param bool $maybe_load_embeds Whether to load the embeds library. Default true. + */ + if ( ! apply_filters( 'load_default_embeds', true ) ) { + return; + } + + wp_embed_register_handler( 'youtube_embed_url', '#https?://(www.)?youtube\.com/(?:v|embed)/([^/]+)#i', 'wp_embed_handler_youtube' ); + + /** + * Filters the audio embed handler callback. + * + * @since 3.6.0 + * + * @param callable $handler Audio embed handler callback function. + */ + wp_embed_register_handler( 'audio', '#^https?://.+?\.(' . join( '|', wp_get_audio_extensions() ) . ')$#i', apply_filters( 'wp_audio_embed_handler', 'wp_embed_handler_audio' ), 9999 ); + + /** + * Filters the video embed handler callback. + * + * @since 3.6.0 + * + * @param callable $handler Video embed handler callback function. + */ + wp_embed_register_handler( 'video', '#^https?://.+?\.(' . join( '|', wp_get_video_extensions() ) . ')$#i', apply_filters( 'wp_video_embed_handler', 'wp_embed_handler_video' ), 9999 ); +} + +/** + * YouTube iframe embed handler callback. + * + * Catches YouTube iframe embed URLs that are not parsable by oEmbed but can be translated into a URL that is. + * + * @since 4.0.0 + * + * @global WP_Embed $wp_embed + * + * @param array $matches The RegEx matches from the provided regex when calling + * wp_embed_register_handler(). + * @param array $attr Embed attributes. + * @param string $url The original URL that was matched by the regex. + * @param array $rawattr The original unmodified attributes. + * @return string The embed HTML. + */ +function wp_embed_handler_youtube( $matches, $attr, $url, $rawattr ) { + global $wp_embed; + $embed = $wp_embed->autoembed( sprintf( "https://youtube.com/watch?v=%s", urlencode( $matches[2] ) ) ); + + /** + * Filters the YoutTube embed output. + * + * @since 4.0.0 + * + * @see wp_embed_handler_youtube() + * + * @param string $embed YouTube embed output. + * @param array $attr An array of embed attributes. + * @param string $url The original URL that was matched by the regex. + * @param array $rawattr The original unmodified attributes. + */ + return apply_filters( 'wp_embed_handler_youtube', $embed, $attr, $url, $rawattr ); +} + +/** + * Audio embed handler callback. + * + * @since 3.6.0 + * + * @param array $matches The RegEx matches from the provided regex when calling wp_embed_register_handler(). + * @param array $attr Embed attributes. + * @param string $url The original URL that was matched by the regex. + * @param array $rawattr The original unmodified attributes. + * @return string The embed HTML. + */ +function wp_embed_handler_audio( $matches, $attr, $url, $rawattr ) { + $audio = sprintf( '[audio src="%s" /]', esc_url( $url ) ); + + /** + * Filters the audio embed output. + * + * @since 3.6.0 + * + * @param string $audio Audio embed output. + * @param array $attr An array of embed attributes. + * @param string $url The original URL that was matched by the regex. + * @param array $rawattr The original unmodified attributes. + */ + return apply_filters( 'wp_embed_handler_audio', $audio, $attr, $url, $rawattr ); +} + +/** + * Video embed handler callback. + * + * @since 3.6.0 + * + * @param array $matches The RegEx matches from the provided regex when calling wp_embed_register_handler(). + * @param array $attr Embed attributes. + * @param string $url The original URL that was matched by the regex. + * @param array $rawattr The original unmodified attributes. + * @return string The embed HTML. + */ +function wp_embed_handler_video( $matches, $attr, $url, $rawattr ) { + $dimensions = ''; + if ( ! empty( $rawattr['width'] ) && ! empty( $rawattr['height'] ) ) { + $dimensions .= sprintf( 'width="%d" ', (int) $rawattr['width'] ); + $dimensions .= sprintf( 'height="%d" ', (int) $rawattr['height'] ); + } + $video = sprintf( '[video %s src="%s" /]', $dimensions, esc_url( $url ) ); + + /** + * Filters the video embed output. + * + * @since 3.6.0 + * + * @param string $video Video embed output. + * @param array $attr An array of embed attributes. + * @param string $url The original URL that was matched by the regex. + * @param array $rawattr The original unmodified attributes. + */ + return apply_filters( 'wp_embed_handler_video', $video, $attr, $url, $rawattr ); +} + +/** + * Registers the oEmbed REST API route. + * + * @since 4.4.0 + */ +function wp_oembed_register_route() { + $controller = new WP_oEmbed_Controller(); + $controller->register_routes(); +} + +/** + * Adds oEmbed discovery links in the website . + * + * @since 4.4.0 + */ +function wp_oembed_add_discovery_links() { + $output = ''; + + if ( is_singular() ) { + $output .= '' . "\n"; + + if ( class_exists( 'SimpleXMLElement' ) ) { + $output .= '' . "\n"; + } + } + + /** + * Filters the oEmbed discovery links HTML. + * + * @since 4.4.0 + * + * @param string $output HTML of the discovery links. + */ + echo apply_filters( 'oembed_discovery_links', $output ); +} + +/** + * Adds the necessary JavaScript to communicate with the embedded iframes. + * + * @since 4.4.0 + */ +function wp_oembed_add_host_js() { + wp_enqueue_script( 'wp-embed' ); +} + +/** + * Retrieves the URL to embed a specific post in an iframe. + * + * @since 4.4.0 + * + * @param int|WP_Post $post Optional. Post ID or object. Defaults to the current post. + * @return string|false The post embed URL on success, false if the post doesn't exist. + */ +function get_post_embed_url( $post = null ) { + $post = get_post( $post ); + + if ( ! $post ) { + return false; + } + + $embed_url = trailingslashit( get_permalink( $post ) ) . user_trailingslashit( 'embed' ); + $path_conflict = get_page_by_path( str_replace( home_url(), '', $embed_url ), OBJECT, get_post_types( array( 'public' => true ) ) ); + + if ( ! get_option( 'permalink_structure' ) || $path_conflict ) { + $embed_url = add_query_arg( array( 'embed' => 'true' ), get_permalink( $post ) ); + } + + /** + * Filters the URL to embed a specific post. + * + * @since 4.4.0 + * + * @param string $embed_url The post embed URL. + * @param WP_Post $post The corresponding post object. + */ + return esc_url_raw( apply_filters( 'post_embed_url', $embed_url, $post ) ); +} + +/** + * Retrieves the oEmbed endpoint URL for a given permalink. + * + * Pass an empty string as the first argument to get the endpoint base URL. + * + * @since 4.4.0 + * + * @param string $permalink Optional. The permalink used for the `url` query arg. Default empty. + * @param string $format Optional. The requested response format. Default 'json'. + * @return string The oEmbed endpoint URL. + */ +function get_oembed_endpoint_url( $permalink = '', $format = 'json' ) { + $url = rest_url( 'oembed/1.0/embed' ); + + if ( '' !== $permalink ) { + $url = add_query_arg( array( + 'url' => urlencode( $permalink ), + 'format' => ( 'json' !== $format ) ? $format : false, + ), $url ); + } + + /** + * Filters the oEmbed endpoint URL. + * + * @since 4.4.0 + * + * @param string $url The URL to the oEmbed endpoint. + * @param string $permalink The permalink used for the `url` query arg. + * @param string $format The requested response format. + */ + return apply_filters( 'oembed_endpoint_url', $url, $permalink, $format ); +} + +/** + * Retrieves the embed code for a specific post. + * + * @since 4.4.0 + * + * @param int $width The width for the response. + * @param int $height The height for the response. + * @param int|WP_Post $post Optional. Post ID or object. Default is global `$post`. + * @return string|false Embed code on success, false if post doesn't exist. + */ +function get_post_embed_html( $width, $height, $post = null ) { + $post = get_post( $post ); + + if ( ! $post ) { + return false; + } + + $embed_url = get_post_embed_url( $post ); + + $output = '
' . get_the_title( $post ) . "
\n"; + + $output .= ""; + + $output .= sprintf( + '', + esc_url( $embed_url ), + absint( $width ), + absint( $height ), + esc_attr( + sprintf( + /* translators: 1: post title, 2: site name */ + __( '“%1$s” — %2$s' ), + get_the_title( $post ), + get_bloginfo( 'name' ) + ) + ) + ); + + /** + * Filters the embed HTML output for a given post. + * + * @since 4.4.0 + * + * @param string $output The default iframe tag to display embedded content. + * @param WP_Post $post Current post object. + * @param int $width Width of the response. + * @param int $height Height of the response. + */ + return apply_filters( 'embed_html', $output, $post, $width, $height ); +} + +/** + * Retrieves the oEmbed response data for a given post. + * + * @since 4.4.0 + * + * @param WP_Post|int $post Post object or ID. + * @param int $width The requested width. + * @return array|false Response data on success, false if post doesn't exist. + */ +function get_oembed_response_data( $post, $width ) { + $post = get_post( $post ); + $width = absint( $width ); + + if ( ! $post ) { + return false; + } + + if ( 'publish' !== get_post_status( $post ) ) { + return false; + } + + /** + * Filters the allowed minimum and maximum widths for the oEmbed response. + * + * @since 4.4.0 + * + * @param array $min_max_width { + * Minimum and maximum widths for the oEmbed response. + * + * @type int $min Minimum width. Default 200. + * @type int $max Maximum width. Default 600. + * } + */ + $min_max_width = apply_filters( 'oembed_min_max_width', array( + 'min' => 200, + 'max' => 600 + ) ); + + $width = min( max( $min_max_width['min'], $width ), $min_max_width['max'] ); + $height = max( ceil( $width / 16 * 9 ), 200 ); + + $data = array( + 'version' => '1.0', + 'provider_name' => get_bloginfo( 'name' ), + 'provider_url' => get_home_url(), + 'author_name' => get_bloginfo( 'name' ), + 'author_url' => get_home_url(), + 'title' => $post->post_title, + 'type' => 'link', + ); + + $author = get_userdata( $post->post_author ); + + if ( $author ) { + $data['author_name'] = $author->display_name; + $data['author_url'] = get_author_posts_url( $author->ID ); + } + + /** + * Filters the oEmbed response data. + * + * @since 4.4.0 + * + * @param array $data The response data. + * @param WP_Post $post The post object. + * @param int $width The requested width. + * @param int $height The calculated height. + */ + return apply_filters( 'oembed_response_data', $data, $post, $width, $height ); +} + +/** + * Filters the oEmbed response data to return an iframe embed code. + * + * @since 4.4.0 + * + * @param array $data The response data. + * @param WP_Post $post The post object. + * @param int $width The requested width. + * @param int $height The calculated height. + * @return array The modified response data. + */ +function get_oembed_response_data_rich( $data, $post, $width, $height ) { + $data['width'] = absint( $width ); + $data['height'] = absint( $height ); + $data['type'] = 'rich'; + $data['html'] = get_post_embed_html( $width, $height, $post ); + + // Add post thumbnail to response if available. + $thumbnail_id = false; + + if ( has_post_thumbnail( $post->ID ) ) { + $thumbnail_id = get_post_thumbnail_id( $post->ID ); + } + + if ( 'attachment' === get_post_type( $post ) ) { + if ( wp_attachment_is_image( $post ) ) { + $thumbnail_id = $post->ID; + } else if ( wp_attachment_is( 'video', $post ) ) { + $thumbnail_id = get_post_thumbnail_id( $post ); + $data['type'] = 'video'; + } + } + + if ( $thumbnail_id ) { + list( $thumbnail_url, $thumbnail_width, $thumbnail_height ) = wp_get_attachment_image_src( $thumbnail_id, array( $width, 99999 ) ); + $data['thumbnail_url'] = $thumbnail_url; + $data['thumbnail_width'] = $thumbnail_width; + $data['thumbnail_height'] = $thumbnail_height; + } + + return $data; +} + +/** + * Ensures that the specified format is either 'json' or 'xml'. + * + * @since 4.4.0 + * + * @param string $format The oEmbed response format. Accepts 'json' or 'xml'. + * @return string The format, either 'xml' or 'json'. Default 'json'. + */ +function wp_oembed_ensure_format( $format ) { + if ( ! in_array( $format, array( 'json', 'xml' ), true ) ) { + return 'json'; + } + + return $format; +} + +/** + * Hooks into the REST API output to print XML instead of JSON. + * + * This is only done for the oEmbed API endpoint, + * which supports both formats. + * + * @access private + * @since 4.4.0 + * + * @param bool $served Whether the request has already been served. + * @param WP_HTTP_ResponseInterface $result Result to send to the client. Usually a WP_REST_Response. + * @param WP_REST_Request $request Request used to generate the response. + * @param WP_REST_Server $server Server instance. + * @return true + */ +function _oembed_rest_pre_serve_request( $served, $result, $request, $server ) { + $params = $request->get_params(); + + if ( '/oembed/1.0/embed' !== $request->get_route() || 'GET' !== $request->get_method() ) { + return $served; + } + + if ( ! isset( $params['format'] ) || 'xml' !== $params['format'] ) { + return $served; + } + + // Embed links inside the request. + $data = $server->response_to_data( $result, false ); + + if ( ! class_exists( 'SimpleXMLElement' ) ) { + status_header( 501 ); + die( get_status_header_desc( 501 ) ); + } + + $result = _oembed_create_xml( $data ); + + // Bail if there's no XML. + if ( ! $result ) { + status_header( 501 ); + return get_status_header_desc( 501 ); + } + + if ( ! headers_sent() ) { + $server->send_header( 'Content-Type', 'text/xml; charset=' . get_option( 'blog_charset' ) ); + } + + echo $result; + + return true; +} + +/** + * Creates an XML string from a given array. + * + * @since 4.4.0 + * @access private + * + * @param array $data The original oEmbed response data. + * @param SimpleXMLElement $node Optional. XML node to append the result to recursively. + * @return string|false XML string on success, false on error. + */ +function _oembed_create_xml( $data, $node = null ) { + if ( ! is_array( $data ) || empty( $data ) ) { + return false; + } + + if ( null === $node ) { + $node = new SimpleXMLElement( '' ); + } + + foreach ( $data as $key => $value ) { + if ( is_numeric( $key ) ) { + $key = 'oembed'; + } + + if ( is_array( $value ) ) { + $item = $node->addChild( $key ); + _oembed_create_xml( $value, $item ); + } else { + $node->addChild( $key, esc_html( $value ) ); + } + } + + return $node->asXML(); +} + +/** + * Filters the given oEmbed HTML. + * + * If the `$url` isn't on the trusted providers list, + * we need to filter the HTML heavily for security. + * + * Only filters 'rich' and 'html' response types. + * + * @since 4.4.0 + * + * @param string $result The oEmbed HTML result. + * @param object $data A data object result from an oEmbed provider. + * @param string $url The URL of the content to be embedded. + * @return string The filtered and sanitized oEmbed result. + */ +function wp_filter_oembed_result( $result, $data, $url ) { + if ( false === $result || ! in_array( $data->type, array( 'rich', 'video' ) ) ) { + return $result; + } + + $wp_oembed = _wp_oembed_get_object(); + + // Don't modify the HTML for trusted providers. + if ( false !== $wp_oembed->get_provider( $url, array( 'discover' => false ) ) ) { + return $result; + } + + $allowed_html = array( + 'a' => array( + 'href' => true, + ), + 'blockquote' => array(), + 'iframe' => array( + 'src' => true, + 'width' => true, + 'height' => true, + 'frameborder' => true, + 'marginwidth' => true, + 'marginheight' => true, + 'scrolling' => true, + 'title' => true, + ), + ); + + $html = wp_kses( $result, $allowed_html ); + + preg_match( '|(
.*?
)?.*()|ms', $html, $content ); + // We require at least the iframe to exist. + if ( empty( $content[2] ) ) { + return false; + } + $html = $content[1] . $content[2]; + + preg_match( '/ src=([\'"])(.*?)\1/', $html, $results ); + + if ( ! empty( $results ) ) { + $secret = wp_generate_password( 10, false ); + + $url = esc_url( "{$results[2]}#?secret=$secret" ); + $q = $results[1]; + + $html = str_replace( $results[0], ' src=' . $q . $url . $q . ' data-secret=' . $q . $secret . $q, $html ); + $html = str_replace( '%2$s', + esc_url( get_permalink() ), + /* translators: %s: Name of current post */ + sprintf( __( 'Continue reading %s' ), '' . get_the_title() . '' ) + ); + return ' … ' . $link; +} + +/** + * Displays the post excerpt for the embed template. + * + * Intended to be used in 'The Loop'. + * + * @since 4.4.0 + */ +function the_excerpt_embed() { + $output = get_the_excerpt(); + + /** + * Filters the post excerpt for the embed template. + * + * @since 4.4.0 + * + * @param string $output The current post excerpt. + */ + echo apply_filters( 'the_excerpt_embed', $output ); +} + +/** + * Filters the post excerpt for the embed template. + * + * Shows players for video and audio attachments. + * + * @since 4.4.0 + * + * @param string $content The current post excerpt. + * @return string The modified post excerpt. + */ +function wp_embed_excerpt_attachment( $content ) { + if ( is_attachment() ) { + return prepend_attachment( '' ); + } + + return $content; +} + +/** + * Enqueue embed iframe default CSS and JS & fire do_action('enqueue_embed_scripts') + * + * Enqueue PNG fallback CSS for embed iframe for legacy versions of IE. + * + * Allows plugins to queue scripts for the embed iframe end using wp_enqueue_script(). + * Runs first in oembed_head(). + * + * @since 4.4.0 + */ +function enqueue_embed_scripts() { + wp_enqueue_style( 'wp-embed-template-ie' ); + + /** + * Fires when scripts and styles are enqueued for the embed iframe. + * + * @since 4.4.0 + */ + do_action( 'enqueue_embed_scripts' ); +} + +/** + * Prints the CSS in the embed iframe header. + * + * @since 4.4.0 + */ +function print_embed_styles() { + ?> + + + + +
+ + + Comment', + '%s Comments', + get_comments_number() + ), + number_format_i18n( get_comments_number() ) + ); + ?> + +
+ +
+ +
+ + + %s', + esc_url( home_url() ), + esc_url( get_site_icon_url( 32, admin_url( 'images/w-logo-blue.png' ) ) ), + esc_url( get_site_icon_url( 64, admin_url( 'images/w-logo-blue.png' ) ) ), + esc_html( get_bloginfo( 'name' ) ) + ); + + $site_title = '
' . $site_title . '
'; + + /** + * Filters the site title HTML in the embed footer. + * + * @since 4.4.0 + * + * @param string $site_title The site title HTML. + */ + echo apply_filters( 'embed_site_title_html', $site_title ); +} + +/** + * Filters the oEmbed result before any HTTP requests are made. + * + * If the URL belongs to the current site, the result is fetched directly instead of + * going through the oEmbed discovery process. + * + * @since 4.5.3 + * + * @param null|string $result The UNSANITIZED (and potentially unsafe) HTML that should be used to embed. Default null. + * @param string $url The URL that should be inspected for discovery `` tags. + * @param array $args oEmbed remote get arguments. + * @return null|string The UNSANITIZED (and potentially unsafe) HTML that should be used to embed. + * Null if the URL does not belong to the current site. + */ +function wp_filter_pre_oembed_result( $result, $url, $args ) { + $switched_blog = false; + + if ( is_multisite() ) { + $url_parts = wp_parse_args( wp_parse_url( $url ), array( + 'host' => '', + 'path' => '/', + ) ); + + $qv = array( 'domain' => $url_parts['host'], 'path' => '/' ); + + // In case of subdirectory configs, set the path. + if ( ! is_subdomain_install() ) { + $path = explode( '/', ltrim( $url_parts['path'], '/' ) ); + $path = reset( $path ); + + if ( $path ) { + $qv['path'] = get_network()->path . $path . '/'; + } + } + + $sites = get_sites( $qv ); + $site = reset( $sites ); + + if ( $site && (int) $site->blog_id !== get_current_blog_id() ) { + switch_to_blog( $site->blog_id ); + $switched_blog = true; + } + } + + $post_id = url_to_postid( $url ); + + /** This filter is documented in wp-includes/class-wp-oembed-controller.php */ + $post_id = apply_filters( 'oembed_request_post_id', $post_id, $url ); + + if ( ! $post_id ) { + if ( $switched_blog ) { + restore_current_blog(); + } + + return $result; + } + + $width = isset( $args['width'] ) ? $args['width'] : 0; + + $data = get_oembed_response_data( $post_id, $width ); + $data = _wp_oembed_get_object()->data2html( (object) $data, $url ); + + if ( $switched_blog ) { + restore_current_blog(); + } + + if ( ! $data ) { + return $result; + } + + return $data; +}