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<?php /** * Class Gutenberg_REST_Attachments_Controller. * * @package MediaExperiments */ /** * Class Gutenberg_REST_Attachments_Controller. */ class Gutenberg_REST_Attachments_Controller extends WP_REST_Attachments_Controller { /** * Registers the routes for attachments. * * @see register_rest_route() */ public function register_routes(): void { parent::register_routes(); $valid_image_sizes = array_keys( wp_get_registered_image_subsizes() ); // Special case to set 'original_image' in attachment metadata. $valid_image_sizes[] = 'original'; // Used for PDF thumbnails. $valid_image_sizes[] = 'full'; register_rest_route( $this->namespace, '/' . $this->rest_base . '/(?P<id>[\d]+)/sideload', array( array( 'methods' => WP_REST_Server::CREATABLE, 'callback' => array( $this, 'sideload_item' ), 'permission_callback' => array( $this, 'sideload_item_permissions_check' ), 'args' => array( 'id' => array( 'description' => __( 'Unique identifier for the attachment.', 'gutenberg' ), 'type' => 'integer', ), 'image_size' => array( 'description' => __( 'Image size.', 'gutenberg' ), 'type' => 'string', 'enum' => $valid_image_sizes, 'required' => true, ), ), ), 'allow_batch' => $this->allow_batch, 'schema' => array( $this, 'get_public_item_schema' ), ) ); } /** * Retrieves an array of endpoint arguments from the item schema for the controller. * * @param string $method Optional. HTTP method of the request. The arguments for `CREATABLE` requests are * checked for required values and may fall-back to a given default, this is not done * on `EDITABLE` requests. Default WP_REST_Server::CREATABLE. * @return array Endpoint arguments. */ public function get_endpoint_args_for_item_schema( $method = WP_REST_Server::CREATABLE ) { $args = rest_get_endpoint_args_for_schema( $this->get_item_schema(), $method ); if ( WP_REST_Server::CREATABLE === $method ) { $args['generate_sub_sizes'] = array( 'type' => 'boolean', 'default' => true, 'description' => __( 'Whether to generate image sub sizes.', 'gutenberg' ), ); $args['convert_format'] = array( 'type' => 'boolean', 'default' => true, 'description' => __( 'Whether to convert image formats.', 'gutenberg' ), ); } return $args; } /** * Prepares a single attachment output for response. * * Ensures 'missing_image_sizes' is set for PDFs and not just images. * * @param WP_Post $item Attachment object. * @param WP_REST_Request $request Request object. * @return WP_REST_Response Response object. */ public function prepare_item_for_response( $item, $request ): WP_REST_Response { $response = parent::prepare_item_for_response( $item, $request ); $data = $response->get_data(); // Handle missing image sizes for PDFs. $fields = $this->get_fields_for_response( $request ); if ( rest_is_field_included( 'missing_image_sizes', $fields ) && empty( $data['missing_image_sizes'] ) ) { $mime_type = get_post_mime_type( $item ); if ( 'application/pdf' === $mime_type ) { $metadata = wp_get_attachment_metadata( $item->ID, true ); if ( ! is_array( $metadata ) ) { $metadata = array(); } $metadata['sizes'] = $metadata['sizes'] ?? array(); $fallback_sizes = array( 'thumbnail', 'medium', 'large', ); // The filter might have been added by ::create_item(). remove_filter( 'fallback_intermediate_image_sizes', '__return_empty_array', 100 ); /** This filter is documented in wp-admin/includes/image.php */ $fallback_sizes = apply_filters( 'fallback_intermediate_image_sizes', $fallback_sizes, $metadata ); // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound $registered_sizes = wp_get_registered_image_subsizes(); $merged_sizes = array_keys( array_intersect_key( $registered_sizes, array_flip( $fallback_sizes ) ) ); $missing_image_sizes = array_diff( $merged_sizes, array_keys( $metadata['sizes'] ) ); $data['missing_image_sizes'] = $missing_image_sizes; } } $context = ! empty( $request['context'] ) ? $request['context'] : 'view'; $data = $this->add_additional_fields_to_object( $data, $request ); $data = $this->filter_response_by_context( $data, $context ); $links = $response->get_links(); $response = rest_ensure_response( $data ); foreach ( $links as $rel => $rel_links ) { foreach ( $rel_links as $link ) { $response->add_link( $rel, $link['href'], $link['attributes'] ); } } return $response; } /** * Creates a single attachment. * * @param WP_REST_Request $request Full details about the request. * @return WP_REST_Response|WP_Error Response object on success, WP_Error object on failure. */ public function create_item( $request ) { if ( ! $request['generate_sub_sizes'] ) { add_filter( 'intermediate_image_sizes_advanced', '__return_empty_array', 100 ); add_filter( 'fallback_intermediate_image_sizes', '__return_empty_array', 100 ); } if ( ! $request['convert_format'] ) { add_filter( 'image_editor_output_format', '__return_empty_array', 100 ); } $response = parent::create_item( $request ); remove_filter( 'intermediate_image_sizes_advanced', '__return_empty_array', 100 ); remove_filter( 'fallback_intermediate_image_sizes', '__return_empty_array', 100 ); remove_filter( 'image_editor_output_format', '__return_empty_array', 100 ); return $response; } /** * Checks if a given request has access to sideload a file. * * Sideloading a file for an existing attachment * requires both update and create permissions. * * @param WP_REST_Request $request Full details about the request. * @return true|WP_Error True if the request has access to update the item, WP_Error object otherwise. */ public function sideload_item_permissions_check( $request ) { return $this->edit_media_item_permissions_check( $request ); } /** * Filters {@see 'wp_unique_filename'} during sideloads. * * {@see wp_unique_filename()} will always add numeric suffix if the name looks like a sub-size to avoid conflicts. * * Adding this closure to the filter helps work around this safeguard. * * Example: when uploading myphoto.jpeg, WordPress normally creates myphoto-150x150.jpeg, * and when uploading myphoto-150x150.jpeg, it will be renamed to myphoto-150x150-1.jpeg * However, here it is desired not to add the suffix in order to maintain the same * naming convention as if the file was uploaded regularly. * * @link https://github.com/WordPress/wordpress-develop/blob/30954f7ac0840cfdad464928021d7f380940c347/src/wp-includes/functions.php#L2576-L2582 * * @param string $filename Unique file name. * @param string $ext File extension. Example: ".png". * @param string $dir Directory path. * @param callable|null $unique_filename_callback Callback function that generates the unique file name. * @param string[] $alt_filenames Array of alternate file names that were checked for collisions. * @param int|string $number The highest number that was used to make the file name unique * or an empty string if unused. * @return string Filtered file name. */ private function filter_wp_unique_filename( $filename, $ext, $dir, $unique_filename_callback, $alt_filenames, $number, $attachment_filename ) { if ( empty( $number ) || ! $attachment_filename ) { return $filename; } $ext = pathinfo( $filename, PATHINFO_EXTENSION ); $name = pathinfo( $filename, PATHINFO_FILENAME ); $orig_name = pathinfo( $attachment_filename, PATHINFO_FILENAME ); if ( ! $ext || ! $name ) { return $filename; } $matches = array(); if ( preg_match( '/(.*)(-\d+x\d+)-' . $number . '$/', $name, $matches ) ) { $filename_without_suffix = $matches[1] . $matches[2] . ".$ext"; if ( $matches[1] === $orig_name && ! file_exists( "$dir/$filename_without_suffix" ) ) { return $filename_without_suffix; } } return $filename; } /** * Side-loads a media file without creating an attachment. * * @param WP_REST_Request $request Full details about the request. * @return WP_REST_Response|WP_Error Response object on success, WP_Error object on failure. */ public function sideload_item( WP_REST_Request $request ) { $attachment_id = $request['id']; $post = $this->get_post( $attachment_id ); if ( is_wp_error( $post ) ) { return $post; } if ( ! wp_attachment_is_image( $post ) && ! wp_attachment_is( 'pdf', $post ) ) { return new WP_Error( 'rest_post_invalid_id', __( 'Invalid post ID, only images and PDFs can be sideloaded.', 'gutenberg' ), array( 'status' => 400 ) ); } if ( ! $request['convert_format'] ) { // Prevent image conversion as that is done client-side. add_filter( 'image_editor_output_format', '__return_empty_array', 100 ); } // Get the file via $_FILES or raw data. $files = $request->get_file_params(); $headers = $request->get_headers(); /* * wp_unique_filename() will always add numeric suffix if the name looks like a sub-size to avoid conflicts. * See https://github.com/WordPress/wordpress-develop/blob/30954f7ac0840cfdad464928021d7f380940c347/src/wp-includes/functions.php#L2576-L2582 * With the following filter we can work around this safeguard. */ $attachment_filename = get_attached_file( $attachment_id, true ); $attachment_filename = $attachment_filename ? wp_basename( $attachment_filename ) : null; /** * @param string $filename Unique file name. * @param string $ext File extension. Example: ".png". * @param string $dir Directory path. * @param callable|null $unique_filename_callback Callback function that generates the unique file name. * @param string[] $alt_filenames Array of alternate file names that were checked for collisions. * @param int|string $number The highest number that was used to make the file name unique * or an empty string if unused. * @return string Filtered file name. */ $filter_filename = function ( $filename, $ext, $dir, $unique_filename_callback, $alt_filenames, $number ) use ( $attachment_filename ) { return $this->filter_wp_unique_filename( $filename, $ext, $dir, $unique_filename_callback, $alt_filenames, $number, $attachment_filename ); }; add_filter( 'wp_unique_filename', $filter_filename, 10, 6 ); $parent_post = get_post_parent( $attachment_id ); $time = null; // Matches logic in media_handle_upload(). // The post date doesn't usually matter for pages, so don't backdate this upload. if ( $parent_post && 'page' !== $parent_post->post_type && substr( $parent_post->post_date, 0, 4 ) > 0 ) { $time = $parent_post->post_date; } if ( ! empty( $files ) ) { $file = $this->upload_from_file( $files, $headers, $time ); } else { $file = $this->upload_from_data( $request->get_body(), $headers, $time ); } remove_filter( 'wp_unique_filename', $filter_filename ); remove_filter( 'image_editor_output_format', '__return_empty_array', 100 ); if ( is_wp_error( $file ) ) { return $file; } $type = $file['type']; $path = $file['file']; $image_size = $request['image_size']; $metadata = wp_get_attachment_metadata( $attachment_id, true ); if ( ! $metadata ) { $metadata = array(); } if ( 'original' === $image_size ) { $metadata['original_image'] = wp_basename( $path ); } else { $metadata['sizes'] = $metadata['sizes'] ?? array(); $size = wp_getimagesize( $path ); $metadata['sizes'][ $image_size ] = array( 'width' => $size ? $size[0] : 0, 'height' => $size ? $size[1] : 0, 'file' => wp_basename( $path ), 'mime-type' => $type, 'filesize' => wp_filesize( $path ), ); } wp_update_attachment_metadata( $attachment_id, $metadata ); $response_request = new WP_REST_Request( WP_REST_Server::READABLE, rest_get_route_for_post( $attachment_id ) ); $response_request['context'] = 'edit'; if ( isset( $request['_fields'] ) ) { $response_request['_fields'] = $request['_fields']; } $response = $this->prepare_item_for_response( get_post( $attachment_id ), $response_request ); $response->header( 'Location', rest_url( rest_get_route_for_post( $attachment_id ) ) ); return $response; } }
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