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First pass at porting over code
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swissspidy committed Aug 5, 2024
1 parent 96cca23 commit 1affded
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3 changes: 3 additions & 0 deletions lib/experimental/editor-settings.php
Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,9 @@ function gutenberg_enable_experiments() {
if ( $gutenberg_experiments && array_key_exists( 'gutenberg-block-bindings-ui', $gutenberg_experiments ) ) {
wp_add_inline_script( 'wp-block-editor', 'window.__experimentalBlockBindingsUI = true', 'before' );
}
if ( $gutenberg_experiments && array_key_exists( 'gutenberg-media-processing', $gutenberg_experiments ) ) {
wp_add_inline_script( 'wp-block-editor', 'window.__experimentalMediaProcessing = true', 'before' );
}
}

add_action( 'admin_init', 'gutenberg_enable_experiments' );
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361 changes: 361 additions & 0 deletions lib/experimental/media/class-gutenberg-rest-attachments-controller.php
Original file line number Diff line number Diff line change
@@ -0,0 +1,361 @@
<?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();

$args = $this->get_endpoint_args_for_item_schema();
$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 support server-side format conversion.', 'gutenberg' ),
);

register_rest_route(
$this->namespace,
'/' . $this->rest_base,
array(
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( $this, 'get_items' ),
'permission_callback' => array( $this, 'get_items_permissions_check' ),
'args' => $this->get_collection_params(),
),
array(
'methods' => WP_REST_Server::CREATABLE,
'callback' => array( $this, 'create_item' ),
'permission_callback' => array( $this, 'create_item_permissions_check' ),
'args' => $args,
),
'allow_batch' => $this->allow_batch,
'schema' => array( $this, 'get_public_item_schema' ),
),
true
);

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',
'required' => true,
),
),
),
'allow_batch' => $this->allow_batch,
'schema' => array( $this, 'get_public_item_schema' ),
)
);
}

/**
* 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 {
$fields = $this->get_fields_for_response( $request );
$response = parent::prepare_item_for_response( $item, $request );

$data = $response->get_data();

if ( rest_is_field_included( 'missing_image_sizes', $fields ) ) {
$mime_type = get_post_mime_type( $item );
if ( 'application/pdf' === $mime_type ) {
// Try to create missing image sizes for PDFs.

$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',
);

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();

// Wrap the data in a response object.
$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 ): WP_Error|WP_REST_Response {
if ( false === $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 ( false === $request['convert_format'] ) {
// Prevent image conversion as that is done client-side.
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 ): WP_Error|bool {
$post = $this->get_post( $request['id'] );

if ( is_wp_error( $post ) ) {
return $post;
}

if ( ! $this->check_update_permission( $post ) ) {
return new WP_Error(
'rest_cannot_edit',
__( 'Sorry, you are not allowed to edit this post.', 'gutenberg' ),
array( 'status' => rest_authorization_required_code() )
);
}

if ( ! current_user_can( 'upload_files' ) ) {
return new WP_Error(
'rest_cannot_create',
__( 'Sorry, you are not allowed to upload media on this site.', 'gutenberg' ),
array( 'status' => 400 )
);
}

return true;
}

/**
* 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 ): WP_Error|WP_REST_Response {
$attachment_id = $request['id'];

if ( 'attachment' !== get_post_type( $attachment_id ) ) {
return new WP_Error(
'rest_invalid_param',
__( 'Invalid parent type.', 'gutenberg' ),
array( 'status' => 400 )
);
}

if ( false === $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 this filter we can work around this safeguard.

$attachment_filename = get_attached_file( $attachment_id, true );
$attachment_filename = $attachment_filename ? basename( $attachment_filename ) : null;

/**
* Filters the result when generating a unique file name.
*
* @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 = static function ( $filename, $ext, $dir, $unique_filename_callback, $alt_filenames, $number ) use ( $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;
};

add_filter( 'wp_unique_filename', $filter_filename, 10, 6 );

// See https://github.com/swissspidy/media-experiments/issues/465.
// See https://core.trac.wordpress.org/ticket/61189.
if ( version_compare( get_bloginfo( 'version' ), '6.6-beta1', '>=' ) ) {
$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 );
}
} else {
if ( ! empty( $files ) ) {
$file = $this->upload_from_file( $files, $headers );
} else {
$file = $this->upload_from_data( $request->get_body(), $headers );
}
}

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'];

// TODO: Better fallback if image_size is not provided.
$image_size = $request['image_size'];

$metadata = wp_get_attachment_metadata( $attachment_id, true );

if ( ! $metadata ) {
$metadata = array();
}

if ( 'original' === $image_size ) {
$metadata['original_image'] = 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' => 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_url( sprintf( '%s/%s/%d', $this->namespace, $this->rest_base, $attachment_id ) )
);

$response_request->set_param( 'context', 'edit' );

if ( isset( $request['_fields'] ) ) {
$response_request['_fields'] = $request['_fields'];
}

$response = $this->prepare_item_for_response( get_post( $attachment_id ), $response_request );

$response->set_status( 201 );
$response->header( 'Location', rest_url( sprintf( '%s/%s/%d', $this->namespace, $this->rest_base, $attachment_id ) ) );

return $response;
}
}
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