lib/endpoints/class-wp-rest-post-statuses-controller.php
<?php
class WP_REST_Post_Statuses_Controller extends WP_REST_Controller {
public function __construct() {
$this->namespace = 'wp/v2';
$this->rest_base = 'statuses';
}
/**
* Register the routes for the objects of the controller.
*/
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(
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' ),
) );
}
/**
* Check whether a given request has permission to read post statuses.
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_Error|boolean
*/
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 cannot view this resource with edit context.' ), array( 'status' => rest_authorization_required_code() ) );
}
return true;
}
/**
* Get all post statuses, depending on user context
*
* @param WP_REST_Request $request
* @return array|WP_Error
*/
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 );
}
/**
* Check if a given request has access to read a post status.
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_Error|boolean
*/
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 resource.' ), array( 'status' => 404 ) );
}
$check = $this->check_read_permission( $status );
if ( ! $check ) {
return new WP_Error( 'rest_cannot_read_status', __( 'Cannot view resource.' ), array( 'status' => rest_authorization_required_code() ) );
}
return true;
}
/**
* Check whether a given post status should be visible
*
* @param object $status
* @return boolean
*/
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;
}
/**
* Get a specific post status
*
* @param WP_REST_Request $request
* @return array|WP_Error
*/
public function get_item( $request ) {
$obj = get_post_status_object( $request['status'] );
if ( empty( $obj ) ) {
return new WP_Error( 'rest_status_invalid', __( 'Invalid resource.' ), array( 'status' => 404 ) );
}
$data = $this->prepare_item_for_response( $obj, $request );
return rest_ensure_response( $data );
}
/**
* Prepare a post status object for serialization
*
* @param stdClass $status Post status data
* @param WP_REST_Request $request
* @return WP_REST_Response Post status data
*/
public function prepare_item_for_response( $status, $request ) {
$data = array(
'name' => $status->label,
'private' => (bool) $status->private,
'protected' => (bool) $status->protected,
'public' => (bool) $status->public,
'queryable' => (bool) $status->publicly_queryable,
'show_in_list' => (bool) $status->show_in_admin_all_list,
'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' ) ) );
}
/**
* Filter a status returned from the API.
*
* Allows modification of the status data right before it is returned.
*
* @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 );
}
/**
* Get the Post status' schema, conforming to JSON Schema
*
* @return array
*/
public function get_item_schema() {
$schema = array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'title' => 'status',
'type' => 'object',
'properties' => array(
'name' => array(
'description' => __( 'The title for the resource.' ),
'type' => 'string',
'context' => array( 'embed', 'view', 'edit' ),
'readonly' => true,
),
'private' => array(
'description' => __( 'Whether posts with this resource should be private.' ),
'type' => 'boolean',
'context' => array( 'edit' ),
'readonly' => true,
),
'protected' => array(
'description' => __( 'Whether posts with this resource should be protected.' ),
'type' => 'boolean',
'context' => array( 'edit' ),
'readonly' => true,
),
'public' => array(
'description' => __( 'Whether posts of this resource 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 resource 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 resource.' ),
'type' => 'string',
'context' => array( 'embed', 'view', 'edit' ),
'readonly' => true,
),
),
);
return $this->add_additional_fields_schema( $schema );
}
/**
* Get the query params for collections
*
* @return array
*/
public function get_collection_params() {
return array(
'context' => $this->get_context_param( array( 'default' => 'view' ) ),
);
}
}