WordPress/wp-includes/rest-api/endpoints/class-wp-rest-post-statuses-controller.php
K. Adam White 5dbb64d0dd REST API: Cache results of get_item_schema on controller instances for performance.
Caches the output of get_item_schema() to avoid redundant recomputation of translatable strings and other computed values. This method is called many times per item in each REST request, and the results of the method should not vary between calls.
Additional schema fields are not cached.

Props kadamwhite, joehoyle, TimothyBlynJacobs.
Fixes #47871.

Built from https://develop.svn.wordpress.org/trunk@45811


git-svn-id: http://core.svn.wordpress.org/trunk@45622 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2019-08-15 21:09:55 +00:00

343 lines
9.4 KiB
PHP

<?php
/**
* REST API: WP_REST_Post_Statuses_Controller class
*
* @package WordPress
* @subpackage REST_API
* @since 4.7.0
*/
/**
* Core class used to access post statuses via the REST API.
*
* @since 4.7.0
*
* @see WP_REST_Controller
*/
class WP_REST_Post_Statuses_Controller extends WP_REST_Controller {
/**
* Constructor.
*
* @since 4.7.0
*/
public function __construct() {
$this->namespace = 'wp/v2';
$this->rest_base = 'statuses';
}
/**
* Registers the routes for the objects of the controller.
*
* @since 4.7.0
*
* @see register_rest_route()
*/
public function register_routes() {
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(),
),
'schema' => array( $this, 'get_public_item_schema' ),
)
);
register_rest_route(
$this->namespace,
'/' . $this->rest_base . '/(?P<status>[\w-]+)',
array(
'args' => array(
'status' => array(
'description' => __( 'An alphanumeric identifier for the status.' ),
'type' => 'string',
),
),
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( $this, 'get_item' ),
'permission_callback' => array( $this, 'get_item_permissions_check' ),
'args' => array(
'context' => $this->get_context_param( array( 'default' => 'view' ) ),
),
),
'schema' => array( $this, 'get_public_item_schema' ),
)
);
}
/**
* Checks whether a given request has permission to read post statuses.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_Error|bool True if the request has read access, WP_Error object otherwise.
*/
public function get_items_permissions_check( $request ) {
if ( 'edit' === $request['context'] ) {
$types = get_post_types( array( 'show_in_rest' => true ), 'objects' );
foreach ( $types as $type ) {
if ( current_user_can( $type->cap->edit_posts ) ) {
return true;
}
}
return new WP_Error( 'rest_cannot_view', __( 'Sorry, you are not allowed to manage post statuses.' ), array( 'status' => rest_authorization_required_code() ) );
}
return true;
}
/**
* Retrieves all post statuses, depending on user context.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_Error|WP_REST_Response Response object on success, or WP_Error object on failure.
*/
public function get_items( $request ) {
$data = array();
$statuses = get_post_stati( array( 'internal' => false ), 'object' );
$statuses['trash'] = get_post_status_object( 'trash' );
foreach ( $statuses as $slug => $obj ) {
$ret = $this->check_read_permission( $obj );
if ( ! $ret ) {
continue;
}
$status = $this->prepare_item_for_response( $obj, $request );
$data[ $obj->name ] = $this->prepare_response_for_collection( $status );
}
return rest_ensure_response( $data );
}
/**
* Checks if a given request has access to read a post status.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_Error|bool True if the request has read access for the item, WP_Error object otherwise.
*/
public function get_item_permissions_check( $request ) {
$status = get_post_status_object( $request['status'] );
if ( empty( $status ) ) {
return new WP_Error( 'rest_status_invalid', __( 'Invalid status.' ), array( 'status' => 404 ) );
}
$check = $this->check_read_permission( $status );
if ( ! $check ) {
return new WP_Error( 'rest_cannot_read_status', __( 'Cannot view status.' ), array( 'status' => rest_authorization_required_code() ) );
}
return true;
}
/**
* Checks whether a given post status should be visible.
*
* @since 4.7.0
*
* @param object $status Post status.
* @return bool True if the post status is visible, otherwise false.
*/
protected function check_read_permission( $status ) {
if ( true === $status->public ) {
return true;
}
if ( false === $status->internal || 'trash' === $status->name ) {
$types = get_post_types( array( 'show_in_rest' => true ), 'objects' );
foreach ( $types as $type ) {
if ( current_user_can( $type->cap->edit_posts ) ) {
return true;
}
}
}
return false;
}
/**
* Retrieves a specific post status.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_Error|WP_REST_Response Response object on success, or WP_Error object on failure.
*/
public function get_item( $request ) {
$obj = get_post_status_object( $request['status'] );
if ( empty( $obj ) ) {
return new WP_Error( 'rest_status_invalid', __( 'Invalid status.' ), array( 'status' => 404 ) );
}
$data = $this->prepare_item_for_response( $obj, $request );
return rest_ensure_response( $data );
}
/**
* Prepares a post status object for serialization.
*
* @since 4.7.0
*
* @param stdClass $status Post status data.
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response Post status data.
*/
public function prepare_item_for_response( $status, $request ) {
$fields = $this->get_fields_for_response( $request );
$data = array();
if ( in_array( 'name', $fields, true ) ) {
$data['name'] = $status->label;
}
if ( in_array( 'private', $fields, true ) ) {
$data['private'] = (bool) $status->private;
}
if ( in_array( 'protected', $fields, true ) ) {
$data['protected'] = (bool) $status->protected;
}
if ( in_array( 'public', $fields, true ) ) {
$data['public'] = (bool) $status->public;
}
if ( in_array( 'queryable', $fields, true ) ) {
$data['queryable'] = (bool) $status->publicly_queryable;
}
if ( in_array( 'show_in_list', $fields, true ) ) {
$data['show_in_list'] = (bool) $status->show_in_admin_all_list;
}
if ( in_array( 'slug', $fields, true ) ) {
$data['slug'] = $status->name;
}
$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
$data = $this->add_additional_fields_to_object( $data, $request );
$data = $this->filter_response_by_context( $data, $context );
$response = rest_ensure_response( $data );
if ( 'publish' === $status->name ) {
$response->add_link( 'archives', rest_url( 'wp/v2/posts' ) );
} else {
$response->add_link( 'archives', add_query_arg( 'status', $status->name, rest_url( 'wp/v2/posts' ) ) );
}
/**
* Filters a status returned from the REST API.
*
* Allows modification of the status data right before it is returned.
*
* @since 4.7.0
*
* @param WP_REST_Response $response The response object.
* @param object $status The original status object.
* @param WP_REST_Request $request Request used to generate the response.
*/
return apply_filters( 'rest_prepare_status', $response, $status, $request );
}
/**
* Retrieves the post status' schema, conforming to JSON Schema.
*
* @since 4.7.0
*
* @return array Item schema data.
*/
public function get_item_schema() {
if ( $this->schema ) {
return $this->add_additional_fields_schema( $this->schema );
}
$schema = array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'title' => 'status',
'type' => 'object',
'properties' => array(
'name' => array(
'description' => __( 'The title for the status.' ),
'type' => 'string',
'context' => array( 'embed', 'view', 'edit' ),
'readonly' => true,
),
'private' => array(
'description' => __( 'Whether posts with this status should be private.' ),
'type' => 'boolean',
'context' => array( 'edit' ),
'readonly' => true,
),
'protected' => array(
'description' => __( 'Whether posts with this status should be protected.' ),
'type' => 'boolean',
'context' => array( 'edit' ),
'readonly' => true,
),
'public' => array(
'description' => __( 'Whether posts of this status should be shown in the front end of the site.' ),
'type' => 'boolean',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'queryable' => array(
'description' => __( 'Whether posts with this status should be publicly-queryable.' ),
'type' => 'boolean',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'show_in_list' => array(
'description' => __( 'Whether to include posts in the edit listing for their post type.' ),
'type' => 'boolean',
'context' => array( 'edit' ),
'readonly' => true,
),
'slug' => array(
'description' => __( 'An alphanumeric identifier for the status.' ),
'type' => 'string',
'context' => array( 'embed', 'view', 'edit' ),
'readonly' => true,
),
),
);
$this->schema = $schema;
return $this->add_additional_fields_schema( $this->schema );
}
/**
* Retrieves the query params for collections.
*
* @since 4.7.0
*
* @return array Collection parameters.
*/
public function get_collection_params() {
return array(
'context' => $this->get_context_param( array( 'default' => 'view' ) ),
);
}
}