Current File : /www/capitalgmcbuickregina_830/public/wp-includes/rest-api/endpoints/class-wp-rest-controller.php
<?php
/**
* REST API: WP_REST_Controller class
*
* @package WordPress
* @subpackage REST_API
* @since 4.7.0
*/
/**
* Core base controller for managing and interacting with REST API items.
*
* @since 4.7.0
*/
#[AllowDynamicProperties]
abstract class WP_REST_Controller {
/**
* The namespace of this controller's route.
*
* @since 4.7.0
* @var string
*/
protected $namespace;
/**
* The base of this controller's route.
*
* @since 4.7.0
* @var string
*/
protected $rest_base;
/**
* Cached results of get_item_schema.
*
* @since 5.3.0
* @var array
*/
protected $schema;
/**
* Registers the routes for the objects of the controller.
*
* @since 4.7.0
*
* @see register_rest_route()
*/
public function register_routes() {
_doing_it_wrong(
'WP_REST_Controller::register_routes',
/* translators: %s: register_routes() */
sprintf( __( "Method '%s' must be overridden." ), __METHOD__ ),
'4.7.0'
);
}
/**
* Checks if a given request has access to get items.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has read access, WP_Error object otherwise.
*/
public function get_items_permissions_check( $request ) {
return new WP_Error(
'invalid-method',
/* translators: %s: Method name. */
sprintf( __( "Method '%s' not implemented. Must be overridden in subclass." ), __METHOD__ ),
array( 'status' => 405 )
);
}
/**
* Retrieves a collection of items.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
*/
public function get_items( $request ) {
return new WP_Error(
'invalid-method',
/* translators: %s: Method name. */
sprintf( __( "Method '%s' not implemented. Must be overridden in subclass." ), __METHOD__ ),
array( 'status' => 405 )
);
}
/**
* Checks if a given request has access to get a specific item.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has read access for the item, WP_Error object otherwise.
*/
public function get_item_permissions_check( $request ) {
return new WP_Error(
'invalid-method',
/* translators: %s: Method name. */
sprintf( __( "Method '%s' not implemented. Must be overridden in subclass." ), __METHOD__ ),
array( 'status' => 405 )
);
}
/**
* Retrieves one item from the collection.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
*/
public function get_item( $request ) {
return new WP_Error(
'invalid-method',
/* translators: %s: Method name. */
sprintf( __( "Method '%s' not implemented. Must be overridden in subclass." ), __METHOD__ ),
array( 'status' => 405 )
);
}
/**
* Checks if a given request has access to create items.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has access to create items, WP_Error object otherwise.
*/
public function create_item_permissions_check( $request ) {
return new WP_Error(
'invalid-method',
/* translators: %s: Method name. */
sprintf( __( "Method '%s' not implemented. Must be overridden in subclass." ), __METHOD__ ),
array( 'status' => 405 )
);
}
/**
* Creates one item from the collection.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
*/
public function create_item( $request ) {
return new WP_Error(
'invalid-method',
/* translators: %s: Method name. */
sprintf( __( "Method '%s' not implemented. Must be overridden in subclass." ), __METHOD__ ),
array( 'status' => 405 )
);
}
/**
* Checks if a given request has access to update a specific item.
*
* @since 4.7.0
*
* @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 update_item_permissions_check( $request ) {
return new WP_Error(
'invalid-method',
/* translators: %s: Method name. */
sprintf( __( "Method '%s' not implemented. Must be overridden in subclass." ), __METHOD__ ),
array( 'status' => 405 )
);
}
/**
* Updates one item from the collection.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
*/
public function update_item( $request ) {
return new WP_Error(
'invalid-method',
/* translators: %s: Method name. */
sprintf( __( "Method '%s' not implemented. Must be overridden in subclass." ), __METHOD__ ),
array( 'status' => 405 )
);
}
/**
* Checks if a given request has access to delete a specific item.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has access to delete the item, WP_Error object otherwise.
*/
public function delete_item_permissions_check( $request ) {
return new WP_Error(
'invalid-method',
/* translators: %s: Method name. */
sprintf( __( "Method '%s' not implemented. Must be overridden in subclass." ), __METHOD__ ),
array( 'status' => 405 )
);
}
/**
* Deletes one item from the collection.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
*/
public function delete_item( $request ) {
return new WP_Error(
'invalid-method',
/* translators: %s: Method name. */
sprintf( __( "Method '%s' not implemented. Must be overridden in subclass." ), __METHOD__ ),
array( 'status' => 405 )
);
}
/**
* Prepares one item for create or update operation.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Request object.
* @return object|WP_Error The prepared item, or WP_Error object on failure.
*/
protected function prepare_item_for_database( $request ) {
return new WP_Error(
'invalid-method',
/* translators: %s: Method name. */
sprintf( __( "Method '%s' not implemented. Must be overridden in subclass." ), __METHOD__ ),
array( 'status' => 405 )
);
}
/**
* Prepares the item for the REST response.
*
* @since 4.7.0
*
* @param mixed $item WordPress representation of the item.
* @param WP_REST_Request $request Request object.
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
*/
public function prepare_item_for_response( $item, $request ) {
return new WP_Error(
'invalid-method',
/* translators: %s: Method name. */
sprintf( __( "Method '%s' not implemented. Must be overridden in subclass." ), __METHOD__ ),
array( 'status' => 405 )
);
}
/**
* Prepares a response for insertion into a collection.
*
* @since 4.7.0
*
* @param WP_REST_Response $response Response object.
* @return array|mixed Response data, ready for insertion into collection data.
*/
public function prepare_response_for_collection( $response ) {
if ( ! ( $response instanceof WP_REST_Response ) ) {
return $response;
}
$data = (array) $response->get_data();
$server = rest_get_server();
$links = $server::get_compact_response_links( $response );
if ( ! empty( $links ) ) {
$data['_links'] = $links;
}
return $data;
}
/**
* Filters a response based on the context defined in the schema.
*
* @since 4.7.0
*
* @param array $response_data Response data to filter.
* @param string $context Context defined in the schema.
* @return array Filtered response.
*/
public function filter_response_by_context( $response_data, $context ) {
$schema = $this->get_item_schema();
return rest_filter_response_by_context( $response_data, $schema, $context );
}
/**
* Retrieves the item's schema, conforming to JSON Schema.
*
* @since 4.7.0
*
* @return array Item schema data.
*/
public function get_item_schema() {
return $this->add_additional_fields_schema( array() );
}
/**
* Retrieves the item's schema for display / public consumption purposes.
*
* @since 4.7.0
*
* @return array Public item schema data.
*/
public function get_public_item_schema() {
$schema = $this->get_item_schema();
if ( ! empty( $schema['properties'] ) ) {
foreach ( $schema['properties'] as &$property ) {
unset( $property['arg_options'] );
}
}
return $schema;
}
/**
* Retrieves the query params for the collections.
*
* @since 4.7.0
*
* @return array Query parameters for the collection.
*/
public function get_collection_params() {
return array(
'context' => $this->get_context_param(),
'page' => array(
'description' => __( 'Current page of the collection.' ),
'type' => 'integer',
'default' => 1,
'sanitize_callback' => 'absint',
'validate_callback' => 'rest_validate_request_arg',
'minimum' => 1,
),
'per_page' => array(
'description' => __( 'Maximum number of items to be returned in result set.' ),
'type' => 'integer',
'default' => 10,
'minimum' => 1,
'maximum' => 100,
'sanitize_callback' => 'absint',
'validate_callback' => 'rest_validate_request_arg',
),
'search' => array(
'description' => __( 'Limit results to those matching a string.' ),
'type' => 'string',
'sanitize_callback' => 'sanitize_text_field',
'validate_callback' => 'rest_validate_request_arg',
),
);
}
/**
* Retrieves the magical context param.
*
* Ensures consistent descriptions between endpoints, and populates enum from schema.
*
* @since 4.7.0
*
* @param array $args Optional. Additional arguments for context parameter. Default empty array.
* @return array Context parameter details.
*/
public function get_context_param( $args = array() ) {
$param_details = array(
'description' => __( 'Scope under which the request is made; determines fields present in response.' ),
'type' => 'string',
'sanitize_callback' => 'sanitize_key',
'validate_callback' => 'rest_validate_request_arg',
);
$schema = $this->get_item_schema();
if ( empty( $schema['properties'] ) ) {
return array_merge( $param_details, $args );
}
$contexts = array();
foreach ( $schema['properties'] as $attributes ) {
if ( ! empty( $attributes['context'] ) ) {
$contexts = array_merge( $contexts, $attributes['context'] );
}
}
if ( ! empty( $contexts ) ) {
$param_details['enum'] = array_unique( $contexts );
rsort( $param_details['enum'] );
}
return array_merge( $param_details, $args );
}
/**
* Adds the values from additional fields to a data object.
*
* @since 4.7.0
*
* @param array $response_data Prepared response array.
* @param WP_REST_Request $request Full details about the request.
* @return array Modified data object with additional fields.
*/
protected function add_additional_fields_to_object( $response_data, $request ) {
$additional_fields = $this->get_additional_fields();
$requested_fields = $this->get_fields_for_response( $request );
foreach ( $additional_fields as $field_name => $field_options ) {
if ( ! $field_options['get_callback'] ) {
continue;
}
if ( ! rest_is_field_included( $field_name, $requested_fields ) ) {
continue;
}
$response_data[ $field_name ] = call_user_func(
$field_options['get_callback'],
$response_data,
$field_name,
$request,
$this->get_object_type()
);
}
return $response_data;
}
/**
* Updates the values of additional fields added to a data object.
*
* @since 4.7.0
*
* @param object $data_object Data model like WP_Term or WP_Post.
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True on success, WP_Error object if a field cannot be updated.
*/
protected function update_additional_fields_for_object( $data_object, $request ) {
$additional_fields = $this->get_additional_fields();
foreach ( $additional_fields as $field_name => $field_options ) {
if ( ! $field_options['update_callback'] ) {
continue;
}
// Don't run the update callbacks if the data wasn't passed in the request.
if ( ! isset( $request[ $field_name ] ) ) {
continue;
}
$result = call_user_func(
$field_options['update_callback'],
$request[ $field_name ],
$data_object,
$field_name,
$request,
$this->get_object_type()
);
if ( is_wp_error( $result ) ) {
return $result;
}
}
return true;
}
/**
* Adds the schema from additional fields to a schema array.
*
* The type of object is inferred from the passed schema.
*
* @since 4.7.0
*
* @param array $schema Schema array.
* @return array Modified Schema array.
*/
protected function add_additional_fields_schema( $schema ) {
if ( empty( $schema['title'] ) ) {
return $schema;
}
// Can't use $this->get_object_type otherwise we cause an inf loop.
$object_type = $schema['title'];
$additional_fields = $this->get_additional_fields( $object_type );
foreach ( $additional_fields as $field_name => $field_options ) {
if ( ! $field_options['schema'] ) {
continue;
}
$schema['properties'][ $field_name ] = $field_options['schema'];
}
return $schema;
}
/**
* Retrieves all of the registered additional fields for a given object-type.
*
* @since 4.7.0
*
* @global array $wp_rest_additional_fields Holds registered fields, organized by object type.
*
* @param string $object_type Optional. The object type.
* @return array Registered additional fields (if any), empty array if none or if the object type
* could not be inferred.
*/
protected function get_additional_fields( $object_type = null ) {
global $wp_rest_additional_fields;
if ( ! $object_type ) {
$object_type = $this->get_object_type();
}
if ( ! $object_type ) {
return array();
}
if ( ! $wp_rest_additional_fields || ! isset( $wp_rest_additional_fields[ $object_type ] ) ) {
return array();
}
return $wp_rest_additional_fields[ $object_type ];
}
/**
* Retrieves the object type this controller is responsible for managing.
*
* @since 4.7.0
*
* @return string Object type for the controller.
*/
protected function get_object_type() {
$schema = $this->get_item_schema();
if ( ! $schema || ! isset( $schema['title'] ) ) {
return null;
}
return $schema['title'];
}
/**
* Gets an array of fields to be included on the response.
*
* Included fields are based on item schema and `_fields=` request argument.
*
* @since 4.9.6
*
* @param WP_REST_Request $request Full details about the request.
* @return string[] Fields to be included in the response.
*/
public function get_fields_for_response( $request ) {
$schema = $this->get_item_schema();
$properties = $schema['properties'] ?? array();
$additional_fields = $this->get_additional_fields();
foreach ( $additional_fields as $field_name => $field_options ) {
/*
* For back-compat, include any field with an empty schema
* because it won't be present in $this->get_item_schema().
*/
if ( is_null( $field_options['schema'] ) ) {
$properties[ $field_name ] = $field_options;
}
}
// Exclude fields that specify a different context than the request context.
$context = $request['context'];
if ( $context ) {
foreach ( $properties as $name => $options ) {
if ( ! empty( $options['context'] ) && ! in_array( $context, $options['context'], true ) ) {
unset( $properties[ $name ] );
}
}
}
$fields = array_keys( $properties );
/*
* '_links' and '_embedded' are not typically part of the item schema,
* but they can be specified in '_fields', so they are added here as a
* convenience for checking with rest_is_field_included().
*/
$fields[] = '_links';
if ( $request->has_param( '_embed' ) ) {
$fields[] = '_embedded';
}
$fields = array_unique( $fields );
if ( ! isset( $request['_fields'] ) ) {
return $fields;
}
$requested_fields = wp_parse_list( $request['_fields'] );
if ( 0 === count( $requested_fields ) ) {
return $fields;
}
// Trim off outside whitespace from the comma delimited list.
$requested_fields = array_map( 'trim', $requested_fields );
// Always persist 'id', because it can be needed for add_additional_fields_to_object().
if ( in_array( 'id', $fields, true ) ) {
$requested_fields[] = 'id';
}
// Return the list of all requested fields which appear in the schema.
return array_reduce(
$requested_fields,
static function ( $response_fields, $field ) use ( $fields ) {
if ( in_array( $field, $fields, true ) ) {
$response_fields[] = $field;
return $response_fields;
}
// Check for nested fields if $field is not a direct match.
$nested_fields = explode( '.', $field );
/*
* A nested field is included so long as its top-level property
* is present in the schema.
*/
if ( in_array( $nested_fields[0], $fields, true ) ) {
$response_fields[] = $field;
}
return $response_fields;
},
array()
);
}
/**
* Retrieves an array of endpoint arguments from the item schema for the controller.
*
* @since 4.7.0
*
* @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 ) {
return rest_get_endpoint_args_for_schema( $this->get_item_schema(), $method );
}
/**
* Sanitizes the slug value.
*
* {@internal We can't use sanitize_title() directly, as the second
* parameter is the fallback title, which would end up being set to the
* request object.}
*
* @since 4.7.0
*
* @link https://github.com/WP-API/WP-API/issues/1585
*
* @todo Remove this in favour of https://core.trac.wordpress.org/ticket/34659
*
* @param string $slug Slug value passed in request.
* @return string Sanitized value for the slug.
*/
public function sanitize_slug( $slug ) {
return sanitize_title( $slug );
}
}
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