eries[] = array( 'ids' => implode( ',', $ids ), 'src' => $srcs, ); continue; } // Old Gallery block format as HTML. if ( $html ) { $galleries[] = $block['innerHTML']; continue; } // Old Gallery block format as an array. $ids = ! empty( $block['attrs']['ids'] ) ? $block['attrs']['ids'] : array(); // If present, use the image IDs from the JSON blob as canonical. if ( ! empty( $ids ) ) { foreach ( $ids as $id ) { $url = wp_get_attachment_url( $id ); if ( is_string( $url ) && ! in_array( $url, $srcs, true ) ) { $srcs[] = $url; } } $galleries[] = array( 'ids' => implode( ',', $ids ), 'src' => $srcs, ); continue; } // Otherwise, extract srcs from the innerHTML. preg_match_all( '#src=([\'"])(.+?)\1#is', $block['innerHTML'], $found_srcs, PREG_SET_ORDER ); if ( ! empty( $found_srcs[0] ) ) { foreach ( $found_srcs as $src ) { if ( isset( $src[2] ) && ! in_array( $src[2], $srcs, true ) ) { $srcs[] = $src[2]; } } } $galleries[] = array( 'src' => $srcs ); } } /** * Filters the list of all found galleries in the given post. * * @since 3.6.0 * * @param array $galleries Associative array of all found post galleries. * @param WP_Post $post Post object. */ return apply_filters( 'get_post_galleries', $galleries, $post ); } /** * Check a specified post's content for gallery and, if present, return the first * * @since 3.6.0 * * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post. * @param bool $html Optional. Whether to return HTML or data. Default is true. * @return string|array Gallery data and srcs parsed from the expanded shortcode. */ function get_post_gallery( $post = 0, $html = true ) { $galleries = get_post_galleries( $post, $html ); $gallery = reset( $galleries ); /** * Filters the first-found post gallery. * * @since 3.6.0 * * @param array $gallery The first-found post gallery. * @param int|WP_Post $post Post ID or object. * @param array $galleries Associative array of all found post galleries. */ return apply_filters( 'get_post_gallery', $gallery, $post, $galleries ); } /** * Retrieve the image srcs from galleries from a post's content, if present * * @since 3.6.0 * * @see get_post_galleries() * * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`. * @return array A list of lists, each containing image srcs parsed. * from an expanded shortcode */ function get_post_galleries_images( $post = 0 ) { $galleries = get_post_galleries( $post, false ); return wp_list_pluck( $galleries, 'src' ); } /** * Checks a post's content for galleries and return the image srcs for the first found gallery * * @since 3.6.0 * * @see get_post_gallery() * * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`. * @return string[] A list of a gallery's image srcs in order. */ function get_post_gallery_images( $post = 0 ) { $gallery = get_post_gallery( $post, false ); return empty( $gallery['src'] ) ? array() : $gallery['src']; } /** * Maybe attempts to generate attachment metadata, if missing. * * @since 3.9.0 * * @param WP_Post $attachment Attachment object. */ function wp_maybe_generate_attachment_metadata( $attachment ) { if ( empty( $attachment ) || empty( $attachment->ID ) ) { return; } $attachment_id = (int) $attachment->ID; $file = get_attached_file( $attachment_id ); $meta = wp_get_attachment_metadata( $attachment_id ); if ( empty( $meta ) && file_exists( $file ) ) { $_meta = get_post_meta( $attachment_id ); $_lock = 'wp_generating_att_' . $attachment_id; if ( ! array_key_exists( '_wp_attachment_metadata', $_meta ) && ! get_transient( $_lock ) ) { set_transient( $_lock, $file ); wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) ); delete_transient( $_lock ); } } } /** * Tries to convert an attachment URL into a post ID. * * @since 4.0.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $url The URL to resolve. * @return int The found post ID, or 0 on failure. */ function attachment_url_to_postid( $url ) { global $wpdb; $dir = wp_get_upload_dir(); $path = $url; $site_url = parse_url( $dir['url'] ); $image_path = parse_url( $path ); // Force the protocols to match if needed. if ( isset( $image_path['scheme'] ) && ( $image_path['scheme'] !== $site_url['scheme'] ) ) { $path = str_replace( $image_path['scheme'], $site_url['scheme'], $path ); } if ( 0 === strpos( $path, $dir['baseurl'] . '/' ) ) { $path = substr( $path, strlen( $dir['baseurl'] . '/' ) ); } $sql = $wpdb->prepare( "SELECT post_id, meta_value FROM $wpdb->postmeta WHERE meta_key = '_wp_attached_file' AND meta_value = %s", $path ); $results = $wpdb->get_results( $sql ); $post_id = null; if ( $results ) { // Use the first available result, but prefer a case-sensitive match, if exists. $post_id = reset( $results )->post_id; if ( count( $results ) > 1 ) { foreach ( $results as $result ) { if ( $path === $result->meta_value ) { $post_id = $result->post_id; break; } } } } /** * Filters an attachment ID found by URL. * * @since 4.2.0 * * @param int|null $post_id The post_id (if any) found by the function. * @param string $url The URL being looked up. */ return (int) apply_filters( 'attachment_url_to_postid', $post_id, $url ); } /** * Returns the URLs for CSS files used in an iframe-sandbox'd TinyMCE media view. * * @since 4.0.0 * * @return string[] The relevant CSS file URLs. */ function wpview_media_sandbox_styles() { $version = 'ver=' . get_bloginfo( 'version' ); $mediaelement = includes_url( "js/mediaelement/mediaelementplayer-legacy.min.css?$version" ); $wpmediaelement = includes_url( "js/mediaelement/wp-mediaelement.css?$version" ); return array( $mediaelement, $wpmediaelement ); } /** * Registers the personal data exporter for media. * * @param array[] $exporters An array of personal data exporters, keyed by their ID. * @return array[] Updated array of personal data exporters. */ function wp_register_media_personal_data_exporter( $exporters ) { $exporters['wordpress-media'] = array( 'exporter_friendly_name' => __( 'WordPress Media' ), 'callback' => 'wp_media_personal_data_exporter', ); return $exporters; } /** * Finds and exports attachments associated with an email address. * * @since 4.9.6 * * @param string $email_address The attachment owner email address. * @param int $page Attachment page. * @return array An array of personal data. */ function wp_media_personal_data_exporter( $email_address, $page = 1 ) { // Limit us to 50 attachments at a time to avoid timing out. $number = 50; $page = (int) $page; $data_to_export = array(); $user = get_user_by( 'email', $email_address ); if ( false === $user ) { return array( 'data' => $data_to_export, 'done' => true, ); } $post_query = new WP_Query( array( 'author' => $user->ID, 'posts_per_page' => $number, 'paged' => $page, 'post_type' => 'attachment', 'post_status' => 'any', 'orderby' => 'ID', 'order' => 'ASC', ) ); foreach ( (array) $post_query->posts as $post ) { $attachment_url = wp_get_attachment_url( $post->ID ); if ( $attachment_url ) { $post_data_to_export = array( array( 'name' => __( 'URL' ), 'value' => $attachment_url, ), ); $data_to_export[] = array( 'group_id' => 'media', 'group_label' => __( 'Media' ), 'group_description' => __( 'User’s media data.' ), 'item_id' => "post-{$post->ID}", 'data' => $post_data_to_export, ); } } $done = $post_query->max_num_pages <= $page; return array( 'data' => $data_to_export, 'done' => $done, ); } /** * Add additional default image sub-sizes. * * These sizes are meant to enhance the way WordPress displays images on the front-end on larger, * high-density devices. They make it possible to generate more suitable `srcset` and `sizes` attributes * when the users upload large images. * * The sizes can be changed or removed by themes and plugins but that is not recommended. * The size "names" reflect the image dimensions, so changing the sizes would be quite misleading. * * @since 5.3.0 * @access private */ function _wp_add_additional_image_sizes() { // 2x medium_large size. add_image_size( '1536x1536', 1536, 1536 ); // 2x large size. add_image_size( '2048x2048', 2048, 2048 ); } /** * Callback to enable showing of the user error when uploading .heic images. * * @since 5.5.0 * * @param array[] $plupload_settings The settings for Plupload.js. * @return array[] Modified settings for Plupload.js. */ function wp_show_heic_upload_error( $plupload_settings ) { $plupload_settings['heic_upload_error'] = true; return $plupload_settings; } /** * Allows PHP's getimagesize() to be debuggable when necessary. * * @since 5.7.0 * @since 5.8.0 Added support for WebP images. * * @param string $filename The file path. * @param array $image_info Optional. Extended image information (passed by reference). * @return array|false Array of image information or false on failure. */ function wp_getimagesize( $filename, array &$image_info = null ) { // Don't silence errors when in debug mode, unless running unit tests. if ( defined( 'WP_DEBUG' ) && WP_DEBUG && ! defined( 'WP_RUN_CORE_TESTS' ) ) { if ( 2 === func_num_args() ) { $info = getimagesize( $filename, $image_info ); } else { $info = getimagesize( $filename ); } } else { /* * Silencing notice and warning is intentional. * * getimagesize() has a tendency to generate errors, such as * "corrupt JPEG data: 7191 extraneous bytes before marker", * even when it's able to provide image size information. * * See https://core.trac.wordpress.org/ticket/42480 */ if ( 2 === func_num_args() ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors $info = @getimagesize( $filename, $image_info ); } else { // phpcs:ignore WordPress.PHP.NoSilencedErrors $info = @getimagesize( $filename ); } } if ( false !== $info ) { return $info; } // For PHP versions that don't support WebP images, // extract the image size info from the file headers. if ( 'image/webp' === wp_get_image_mime( $filename ) ) { $webp_info = wp_get_webp_info( $filename ); $width = $webp_info['width']; $height = $webp_info['height']; // Mimic the native return format. if ( $width && $height ) { return array( $width, $height, IMAGETYPE_WEBP, sprintf( 'width="%d" height="%d"', $width, $height ), 'mime' => 'image/webp', ); } } // The image could not be parsed. return false; } /** * Extracts meta information about a WebP file: width, height, and type. * * @since 5.8.0 * * @param string $filename Path to a WebP file. * @return array { * An array of WebP image information. * * @type int|false $width Image width on success, false on failure. * @type int|false $height Image height on success, false on failure. * @type string|false $type The WebP type: one of 'lossy', 'lossless' or 'animated-alpha'. * False on failure. * } */ function wp_get_webp_info( $filename ) { $width = false; $height = false; $type = false; if ( 'image/webp' !== wp_get_image_mime( $filename ) ) { return compact( 'width', 'height', 'type' ); } try { $handle = fopen( $filename, 'rb' ); if ( $handle ) { $magic = fread( $handle, 40 ); fclose( $handle ); // Make sure we got enough bytes. if ( strlen( $magic ) < 40 ) { return compact( 'width', 'height', 'type' ); } // The headers are a little different for each of the three formats. // Header values based on WebP docs, see https://developers.google.com/speed/webp/docs/riff_container. switch ( substr( $magic, 12, 4 ) ) { // Lossy WebP. case 'VP8 ': $parts = unpack( 'v2', substr( $magic, 26, 4 ) ); $width = (int) ( $parts[1] & 0x3FFF ); $height = (int) ( $parts[2] & 0x3FFF ); $type = 'lossy'; break; // Lossless WebP. case 'VP8L': $parts = unpack( 'C4', substr( $magic, 21, 4 ) ); $width = (int) ( $parts[1] | ( ( $parts[2] & 0x3F ) << 8 ) ) + 1; $height = (int) ( ( ( $parts[2] & 0xC0 ) >> 6 ) | ( $parts[3] << 2 ) | ( ( $parts[4] & 0x03 ) << 10 ) ) + 1; $type = 'lossless'; break; // Animated/alpha WebP. case 'VP8X': // Pad 24-bit int. $width = unpack( 'V', substr( $magic, 24, 3 ) . "\x00" ); $width = (int) ( $width[1] & 0xFFFFFF ) + 1; // Pad 24-bit int. $height = unpack( 'V', substr( $magic, 27, 3 ) . "\x00" ); $height = (int) ( $height[1] & 0xFFFFFF ) + 1; $type = 'animated-alpha'; break; } } } catch ( Exception $e ) { } return compact( 'width', 'height', 'type' ); } /** * Gets the default value to use for a `loading` attribute on an element. * * This function should only be called for a tag and context if lazy-loading is generally enabled. * * The function usually returns 'lazy', but uses certain heuristics to guess whether the current element is likely to * appear above the fold, in which case it returns a boolean `false`, which will lead to the `loading` attribute being * omitted on the element. The purpose of this refinement is to avoid lazy-loading elements that are within the initial * viewport, which can have a negative performance impact. * * Under the hood, the function uses {@see wp_increase_content_media_count()} every time it is called for an element * within the main content. If the element is the very first content element, the `loading` attribute will be omitted. * This default threshold of 1 content element to omit the `loading` attribute for can be customized using the * {@see 'wp_omit_loading_attr_threshold'} filter. * * @since 5.9.0 * * @param string $context Context for the element for which the `loading` attribute value is requested. * @return string|bool The default `loading` attribute value. Either 'lazy', 'eager', or a boolean `false`, to indicate * that the `loading` attribute should be skipped. */ function wp_get_loading_attr_default( $context ) { // Only elements with 'the_content' or 'the_post_thumbnail' context have special handling. if ( 'the_content' !== $context && 'the_post_thumbnail' !== $context ) { return 'lazy'; } // Only elements within the main query loop have special handling. if ( is_admin() || ! in_the_loop() || ! is_main_query() ) { return 'lazy'; } // Increase the counter since this is a main query content element. $content_media_count = wp_increase_content_media_count(); // If the count so far is below the threshold, return `false` so that the `loading` attribute is omitted. if ( $content_media_count <= wp_omit_loading_attr_threshold() ) { return false; } // For elements after the threshold, lazy-load them as usual. return 'lazy'; } /** * Gets the threshold for how many of the first content media elements to not lazy-load. * * This function runs the {@see 'wp_omit_loading_attr_threshold'} filter, which uses a default threshold value of 1. * The filter is only run once per page load, unless the `$force` parameter is used. * * @since 5.9.0 * * @param bool $force Optional. If set to true, the filter will be (re-)applied even if it already has been before. * Default false. * @return int The number of content media elements to not lazy-load. */ function wp_omit_loading_attr_threshold( $force = false ) { static $omit_threshold; // This function may be called multiple times. Run the filter only once per page load. if ( ! isset( $omit_threshold ) || $force ) { /** * Filters the threshold for how many of the first content media elements to not lazy-load. * * For these first content media elements, the `loading` attribute will be omitted. By default, this is the case * for only the very first content media element. * * @since 5.9.0 * * @param int $omit_threshold The number of media elements where the `loading` attribute will not be added. Default 1. */ $omit_threshold = apply_filters( 'wp_omit_loading_attr_threshold', 1 ); } return $omit_threshold; } /** * Increases an internal content media count variable. * * @since 5.9.0 * @access private * * @param int $amount Optional. Amount to increase by. Default 1. * @return int The latest content media count, after the increase. */ function wp_increase_content_media_count( $amount = 1 ) { static $content_media_count = 0; $content_media_count += $amount; return $content_media_count; }