| 1 |
<?php |
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/** |
| 3 |
* Adds media-related functionality for client-side media processing. |
| 4 |
* |
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* @package gutenberg |
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*/ |
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|
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if ( ! gutenberg_is_client_side_media_processing_enabled() ) { |
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return; |
| 10 |
} |
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|
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/** |
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* Sets a global JS variable to indicate that client-side media processing is enabled. |
| 14 |
*/ |
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function gutenberg_set_client_side_media_processing_flag() { |
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if ( ! gutenberg_is_client_side_media_processing_enabled() ) { |
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return; |
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} |
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wp_add_inline_script( 'wp-block-editor', 'window.__clientSideMediaProcessing = true', 'before' ); |
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} |
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add_action( 'admin_init', 'gutenberg_set_client_side_media_processing_flag' ); |
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|
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/** |
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* Returns a list of all available image sizes. |
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* |
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* @return array Existing image sizes. |
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*/ |
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function gutenberg_get_all_image_sizes(): array { |
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$sizes = wp_get_registered_image_subsizes(); |
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|
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foreach ( $sizes as $name => &$size ) { |
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$size['height'] = (int) $size['height']; |
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$size['width'] = (int) $size['width']; |
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$size['name'] = $name; |
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} |
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unset( $size ); |
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|
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return $sizes; |
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} |
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|
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/** |
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* Returns the default output format mapping for the supported image formats. |
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* |
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* @return array<string,string> Map of input formats to output formats. |
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*/ |
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function gutenberg_get_default_image_output_formats() { |
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$input_formats = array( |
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'image/jpeg', |
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'image/png', |
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'image/gif', |
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'image/webp', |
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'image/avif', |
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'image/heic', |
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); |
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|
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$output_formats = array(); |
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|
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foreach ( $input_formats as $mime_type ) { |
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/** This filter is documented in wp-includes/media.php */ |
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$output_formats = apply_filters( |
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'image_editor_output_format', // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
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$output_formats, |
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'', |
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$mime_type |
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); |
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} |
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|
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return $output_formats; |
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} |
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|
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/** |
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* Filters the REST API root index data to add custom settings. |
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* |
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* @param WP_REST_Response $response Response data. |
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*/ |
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function gutenberg_media_processing_filter_rest_index( WP_REST_Response $response ) { |
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/** This filter is documented in wp-admin/includes/images.php */ |
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$image_size_threshold = (int) apply_filters( 'big_image_size_threshold', 2560, array( 0, 0 ), '', 0 ); // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
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|
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$default_image_output_formats = gutenberg_get_default_image_output_formats(); |
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|
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/** This filter is documented in wp-includes/class-wp-image-editor-imagick.php */ |
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$jpeg_interlaced = (bool) apply_filters( 'image_save_progressive', false, 'image/jpeg' ); // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
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/** This filter is documented in wp-includes/class-wp-image-editor-imagick.php */ |
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$png_interlaced = (bool) apply_filters( 'image_save_progressive', false, 'image/png' ); // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
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/** This filter is documented in wp-includes/class-wp-image-editor-imagick.php */ |
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$gif_interlaced = (bool) apply_filters( 'image_save_progressive', false, 'image/gif' ); // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
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|
| 89 |
if ( current_user_can( 'upload_files' ) ) { |
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$response->data['image_sizes'] = gutenberg_get_all_image_sizes(); |
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$response->data['image_size_threshold'] = $image_size_threshold; |
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$response->data['image_output_formats'] = (object) $default_image_output_formats; |
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$response->data['jpeg_interlaced'] = $jpeg_interlaced; |
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$response->data['png_interlaced'] = $png_interlaced; |
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$response->data['gif_interlaced'] = $gif_interlaced; |
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} |
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|
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return $response; |
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} |
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|
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add_filter( 'rest_index', 'gutenberg_media_processing_filter_rest_index' ); |
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|
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|
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/** |
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* Overrides the REST controller for the attachment post type. |
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* |
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* @param array $args Array of arguments for registering a post type. |
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* See the register_post_type() function for accepted arguments. |
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* @param string $post_type Post type key. |
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*/ |
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function gutenberg_filter_attachment_post_type_args( array $args, string $post_type ): array { |
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if ( 'attachment' === $post_type ) { |
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require_once __DIR__ . '/class-gutenberg-rest-attachments-controller.php'; |
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|
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$args['rest_controller_class'] = Gutenberg_REST_Attachments_Controller::class; |
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} |
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|
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return $args; |
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} |
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|
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add_filter( 'register_post_type_args', 'gutenberg_filter_attachment_post_type_args', 10, 2 ); |
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|
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|
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/** |
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* Registers additional REST fields for attachments. |
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*/ |
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function gutenberg_media_processing_register_rest_fields(): void { |
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register_rest_field( |
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'attachment', |
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'filename', |
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array( |
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'schema' => array( |
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'description' => __( 'Original attachment file name', 'gutenberg' ), |
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'type' => 'string', |
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'context' => array( 'view', 'edit' ), |
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), |
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'get_callback' => 'gutenberg_rest_get_attachment_filename', |
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) |
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); |
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|
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register_rest_field( |
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'attachment', |
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'filesize', |
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array( |
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'schema' => array( |
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'description' => __( 'Attachment file size', 'gutenberg' ), |
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'type' => 'number', |
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'context' => array( 'view', 'edit' ), |
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), |
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'get_callback' => 'gutenberg_rest_get_attachment_filesize', |
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) |
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); |
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} |
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|
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add_action( 'rest_api_init', 'gutenberg_media_processing_register_rest_fields' ); |
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|
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/** |
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* Returns the attachment's original file name. |
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* |
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* @param array $post Post data. |
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* @return string|null Attachment file name. |
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*/ |
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function gutenberg_rest_get_attachment_filename( array $post ): ?string { |
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$path = wp_get_original_image_path( $post['id'] ); |
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|
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if ( $path ) { |
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return basename( $path ); |
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} |
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|
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$path = get_attached_file( $post['id'] ); |
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|
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if ( $path ) { |
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return basename( $path ); |
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} |
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|
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return null; |
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} |
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|
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/** |
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* Returns the attachment's file size in bytes. |
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* |
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* @param array $post Post data. |
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* @return int|null Attachment file size. |
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*/ |
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function gutenberg_rest_get_attachment_filesize( array $post ): ?int { |
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$attachment_id = $post['id']; |
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|
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$meta = wp_get_attachment_metadata( $attachment_id ); |
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|
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if ( isset( $meta['filesize'] ) ) { |
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return $meta['filesize']; |
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} |
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|
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$original_path = wp_get_original_image_path( $attachment_id ); |
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$attached_file = $original_path ? $original_path : get_attached_file( $attachment_id ); |
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|
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if ( is_string( $attached_file ) && file_exists( $attached_file ) ) { |
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return wp_filesize( $attached_file ); |
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} |
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|
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return null; |
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} |
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|
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/** |
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* Filters the list of rewrite rules formatted for output to an .htaccess file. |
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* |
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* Adds support for serving wasm-vips locally. |
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* |
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* @param string $rules mod_rewrite Rewrite rules formatted for .htaccess. |
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* @return string Filtered rewrite rules. |
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*/ |
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function gutenberg_filter_mod_rewrite_rules( string $rules ): string { |
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$rules .= "\n# BEGIN Gutenberg client-side media processing\n" . |
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"AddType application/wasm wasm\n" . |
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"# END Gutenberg client-side media processing\n"; |
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|
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return $rules; |
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} |
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|
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add_filter( 'mod_rewrite_rules', 'gutenberg_filter_mod_rewrite_rules' ); |
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|
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/** |
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* Returns the major Chromium version from the current request's User-Agent. |
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* |
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* Matches all Chromium-based browsers (Chrome, Edge, Opera, Brave). |
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* |
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* @return int|null The major Chromium version, or null if not a Chromium browser. |
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*/ |
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function gutenberg_get_chromium_major_version(): ?int { |
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if ( empty( $_SERVER['HTTP_USER_AGENT'] ) ) { |
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return null; |
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} |
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if ( preg_match( '/Chrome\/(\d+)/', $_SERVER['HTTP_USER_AGENT'], $matches ) ) { |
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return (int) $matches[1]; |
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} |
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return null; |
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} |
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|
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/** |
| 240 |
* Enables cross-origin isolation in the block editor. |
| 241 |
* |
| 242 |
* Required for enabling SharedArrayBuffer for WebAssembly-based |
| 243 |
* media processing in the editor. Uses Document-Isolation-Policy |
| 244 |
* on supported browsers (Chromium 137+). |
| 245 |
*/ |
| 246 |
function gutenberg_set_up_cross_origin_isolation() { |
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// Re-check the filter at action time, since other plugins (loaded after Gutenberg) |
| 248 |
// may have added a filter to disable client-side media processing. |
| 249 |
if ( ! gutenberg_is_client_side_media_processing_enabled() ) { |
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return; |
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} |
| 252 |
|
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$screen = get_current_screen(); |
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|
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if ( ! $screen ) { |
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return; |
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} |
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|
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if ( ! $screen->is_block_editor() && 'site-editor' !== $screen->id && ! ( 'widgets' === $screen->id && wp_use_widgets_block_editor() ) ) { |
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return; |
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} |
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|
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// Skip when a third-party page builder overrides the block editor. |
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// DIP isolates the document into its own agent cluster, |
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// which blocks same-origin iframe access that these editors rely on. |
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// phpcs:ignore WordPress.Security.NonceVerification.Recommended |
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if ( isset( $_GET['action'] ) && 'edit' !== $_GET['action'] ) { |
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return; |
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} |
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|
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$user_id = get_current_user_id(); |
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if ( ! $user_id ) { |
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return; |
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} |
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|
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// Cross-origin isolation is not needed if users can't upload files anyway. |
| 277 |
if ( ! user_can( $user_id, 'upload_files' ) ) { |
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return; |
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} |
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|
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gutenberg_start_cross_origin_isolation_output_buffer(); |
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} |
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|
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add_action( 'load-post.php', 'gutenberg_set_up_cross_origin_isolation' ); |
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add_action( 'load-post-new.php', 'gutenberg_set_up_cross_origin_isolation' ); |
| 286 |
add_action( 'load-site-editor.php', 'gutenberg_set_up_cross_origin_isolation' ); |
| 287 |
add_action( 'load-widgets.php', 'gutenberg_set_up_cross_origin_isolation' ); |
| 288 |
|
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// Remove core's COEP/COOP-based cross-origin isolation in favor of |
| 290 |
// Gutenberg's DIP-based approach, which also skips third-party editors. |
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remove_action( 'load-post.php', 'wp_set_up_cross_origin_isolation' ); |
| 292 |
remove_action( 'load-post-new.php', 'wp_set_up_cross_origin_isolation' ); |
| 293 |
remove_action( 'load-site-editor.php', 'wp_set_up_cross_origin_isolation' ); |
| 294 |
remove_action( 'load-widgets.php', 'wp_set_up_cross_origin_isolation' ); |
| 295 |
|
| 296 |
/** |
| 297 |
* Sends the Document-Isolation-Policy header for cross-origin isolation. |
| 298 |
* |
| 299 |
* Uses an output buffer to add crossorigin="anonymous" where needed. |
| 300 |
*/ |
| 301 |
function gutenberg_start_cross_origin_isolation_output_buffer(): void { |
| 302 |
$chromium_version = gutenberg_get_chromium_major_version(); |
| 303 |
|
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/** |
| 305 |
* Filters whether to use Document-Isolation-Policy for cross-origin isolation. |
| 306 |
* |
| 307 |
* Document-Isolation-Policy provides per-document cross-origin isolation |
| 308 |
* without affecting other iframes on the page, avoiding breakage of plugins |
| 309 |
* whose iframes lose credentials/DOM access. |
| 310 |
* |
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* @since 21.8.0 |
| 312 |
* |
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* @param bool $use_dip Whether DIP is supported and should be used. |
| 314 |
*/ |
| 315 |
$use_dip = apply_filters( |
| 316 |
'gutenberg_use_document_isolation_policy', |
| 317 |
null !== $chromium_version && $chromium_version >= 137 |
| 318 |
); |
| 319 |
|
| 320 |
if ( ! $use_dip ) { |
| 321 |
return; |
| 322 |
} |
| 323 |
|
| 324 |
ob_start( |
| 325 |
function ( string $output ): string { |
| 326 |
header( 'Document-Isolation-Policy: isolate-and-credentialless' ); |
| 327 |
|
| 328 |
return gutenberg_add_crossorigin_attributes( $output ); |
| 329 |
} |
| 330 |
); |
| 331 |
} |
| 332 |
|
| 333 |
/** |
| 334 |
* Adds crossorigin="anonymous" to relevant tags in the given HTML string. |
| 335 |
* |
| 336 |
* @param string $html HTML input. |
| 337 |
* |
| 338 |
* @return string Modified HTML. |
| 339 |
*/ |
| 340 |
function gutenberg_add_crossorigin_attributes( string $html ): string { |
| 341 |
$site_url = site_url(); |
| 342 |
|
| 343 |
$processor = new WP_HTML_Tag_Processor( $html ); |
| 344 |
|
| 345 |
// See https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/crossorigin. |
| 346 |
$tags = array( |
| 347 |
'AUDIO' => 'src', |
| 348 |
'IMG' => 'src', |
| 349 |
'LINK' => 'href', |
| 350 |
'SCRIPT' => 'src', |
| 351 |
'VIDEO' => 'src', |
| 352 |
'SOURCE' => 'src', |
| 353 |
); |
| 354 |
|
| 355 |
$tag_names = array_keys( $tags ); |
| 356 |
|
| 357 |
while ( $processor->next_tag() ) { |
| 358 |
$tag = $processor->get_tag(); |
| 359 |
|
| 360 |
if ( ! in_array( $tag, $tag_names, true ) ) { |
| 361 |
continue; |
| 362 |
} |
| 363 |
|
| 364 |
if ( 'AUDIO' === $tag || 'VIDEO' === $tag ) { |
| 365 |
$processor->set_bookmark( 'audio-video-parent' ); |
| 366 |
} |
| 367 |
|
| 368 |
$processor->set_bookmark( 'resume' ); |
| 369 |
|
| 370 |
$sought = false; |
| 371 |
|
| 372 |
$crossorigin = $processor->get_attribute( 'crossorigin' ); |
| 373 |
|
| 374 |
$url = $processor->get_attribute( $tags[ $tag ] ); |
| 375 |
|
| 376 |
if ( is_string( $url ) && ! str_starts_with( $url, $site_url ) && ! str_starts_with( $url, '/' ) && ! is_string( $crossorigin ) ) { |
| 377 |
if ( 'SOURCE' === $tag ) { |
| 378 |
$sought = $processor->seek( 'audio-video-parent' ); |
| 379 |
|
| 380 |
if ( $sought ) { |
| 381 |
$processor->set_attribute( 'crossorigin', 'anonymous' ); |
| 382 |
} |
| 383 |
} else { |
| 384 |
$processor->set_attribute( 'crossorigin', 'anonymous' ); |
| 385 |
} |
| 386 |
|
| 387 |
if ( $sought ) { |
| 388 |
$processor->seek( 'resume' ); |
| 389 |
$processor->release_bookmark( 'audio-video-parent' ); |
| 390 |
} |
| 391 |
} |
| 392 |
} |
| 393 |
|
| 394 |
return $processor->get_updated_html(); |
| 395 |
} |
| 396 |
|
| 397 |
/** |
| 398 |
* Overrides templates from wp_print_media_templates with custom ones. |
| 399 |
* |
| 400 |
* Adds `crossorigin` attribute to all tags that |
| 401 |
* could have assets loaded from a different domain. |
| 402 |
*/ |
| 403 |
function gutenberg_override_media_templates(): void { |
| 404 |
remove_action( 'admin_footer', 'wp_print_media_templates' ); |
| 405 |
add_action( |
| 406 |
'admin_footer', |
| 407 |
static function (): void { |
| 408 |
ob_start(); |
| 409 |
wp_print_media_templates(); |
| 410 |
$html = (string) ob_get_clean(); |
| 411 |
|
| 412 |
$tags = array( |
| 413 |
'audio', |
| 414 |
'img', |
| 415 |
'video', |
| 416 |
); |
| 417 |
|
| 418 |
foreach ( $tags as $tag ) { |
| 419 |
$html = (string) str_replace( "<$tag", "<$tag crossorigin=\"anonymous\"", $html ); |
| 420 |
} |
| 421 |
|
| 422 |
echo $html; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped |
| 423 |
} |
| 424 |
); |
| 425 |
} |
| 426 |
|
| 427 |
add_action( 'wp_enqueue_media', 'gutenberg_override_media_templates' ); |
| 428 |
|
