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<?php
namespace Automattic\WooCommerce\StoreApi\Routes\V1;
use Automattic\WooCommerce\StoreApi\SchemaController;
use Automattic\WooCommerce\StoreApi\Routes\RouteInterface;
use Automattic\WooCommerce\StoreApi\Exceptions\RouteException;
use Automattic\WooCommerce\StoreApi\Exceptions\InvalidCartException;
use Automattic\WooCommerce\StoreApi\Schemas\v1\AbstractSchema;
use WP_Error;
/**
* AbstractRoute class.
*/
abstract class AbstractRoute implements RouteInterface {
/**
* Schema class instance.
*
* @var AbstractSchema
*/
protected $schema;
/**
* Route namespace.
*
* @var string
*/
protected $namespace = 'wc/store/v1';
/**
* Schema Controller instance.
*
* @var SchemaController
*/
protected $schema_controller;
/**
* The routes schema.
*
* @var string
*/
const SCHEMA_TYPE = '';
/**
* The routes schema version.
*
* @var integer
*/
const SCHEMA_VERSION = 1;
/**
* Constructor.
*
* @param SchemaController $schema_controller Schema Controller instance.
* @param AbstractSchema $schema Schema class for this route.
*/
public function __construct( SchemaController $schema_controller, AbstractSchema $schema ) {
$this->schema_controller = $schema_controller;
$this->schema = $schema;
}
/**
* Get the namespace for this route.
*
* @return string
*/
public function get_namespace() {
return $this->namespace;
}
/**
* Set the namespace for this route.
*
* @param string $namespace Given namespace.
*/
public function set_namespace( $namespace ) {
$this->namespace = $namespace;
}
/**
* Get item schema properties.
*
* @return array
*/
public function get_item_schema() {
return $this->schema->get_item_schema();
}
/**
* Get the route response based on the type of request.
*
* @param \WP_REST_Request $request Request object.
* @return \WP_REST_Response
*/
public function get_response( \WP_REST_Request $request ) {
$response = null;
try {
$response = $this->get_response_by_request_method( $request );
} catch ( RouteException $error ) {
$response = $this->get_route_error_response( $error->getErrorCode(), $error->getMessage(), $error->getCode(), $error->getAdditionalData() );
} catch ( InvalidCartException $error ) {
$response = $this->get_route_error_response_from_object( $error->getError(), $error->getCode(), $error->getAdditionalData() );
} catch ( \Exception $error ) {
$response = $this->get_route_error_response( 'woocommerce_rest_unknown_server_error', $error->getMessage(), 500 );
}
return is_wp_error( $response ) ? $this->error_to_response( $response ) : $response;
}
/**
* Get the route response based on the type of request.
*
* @param \WP_REST_Request $request Request object.
* @return \WP_REST_Response
*/
protected function get_response_by_request_method( \WP_REST_Request $request ) {
switch ( $request->get_method() ) {
case 'POST':
return $this->get_route_post_response( $request );
case 'PUT':
case 'PATCH':
return $this->get_route_update_response( $request );
case 'DELETE':
return $this->get_route_delete_response( $request );
}
return $this->get_route_response( $request );
}
/**
* Converts an error to a response object. Based on \WP_REST_Server.
*
* @param \WP_Error $error WP_Error instance.
* @return \WP_REST_Response List of associative arrays with code and message keys.
*/
protected function error_to_response( $error ) {
$error_data = $error->get_error_data();
$status = isset( $error_data, $error_data['status'] ) ? $error_data['status'] : 500;
$errors = [];
foreach ( (array) $error->errors as $code => $messages ) {
foreach ( (array) $messages as $message ) {
$errors[] = array(
'code' => $code,
'message' => $message,
'data' => $error->get_error_data( $code ),
);
}
}
$data = array_shift( $errors );
if ( count( $errors ) ) {
$data['additional_errors'] = $errors;
}
return new \WP_REST_Response( $data, $status );
}
/**
* Get route response for GET requests.
*
* When implemented, should return a \WP_REST_Response.
*
* @throws RouteException On error.
* @param \WP_REST_Request $request Request object.
* @return \WP_REST_Response
*/
protected function get_route_response( \WP_REST_Request $request ) {
return $this->get_route_error_response( 'woocommerce_rest_invalid_endpoint', __( 'Method not implemented', 'woocommerce' ), 404 );
}
/**
* Get route response for POST requests.
*
* When implemented, should return a \WP_REST_Response.
*
* @throws RouteException On error.
* @param \WP_REST_Request $request Request object.
* @return \WP_REST_Response
*/
protected function get_route_post_response( \WP_REST_Request $request ) {
return $this->get_route_error_response( 'woocommerce_rest_invalid_endpoint', __( 'Method not implemented', 'woocommerce' ), 404 );
}
/**
* Get route response for PUT requests.
*
* When implemented, should return a \WP_REST_Response.
*
* @throws RouteException On error.
* @param \WP_REST_Request $request Request object.
* @return \WP_REST_Response
*/
protected function get_route_update_response( \WP_REST_Request $request ) {
return $this->get_route_error_response( 'woocommerce_rest_invalid_endpoint', __( 'Method not implemented', 'woocommerce' ), 404 );
}
/**
* Get route response for DELETE requests.
*
* When implemented, should return a \WP_REST_Response.
*
* @throws RouteException On error.
* @param \WP_REST_Request $request Request object.
* @return \WP_REST_Response
*/
protected function get_route_delete_response( \WP_REST_Request $request ) {
return $this->get_route_error_response( 'woocommerce_rest_invalid_endpoint', __( 'Method not implemented', 'woocommerce' ), 404 );
}
/**
* Get route response when something went wrong.
*
* @param string $error_code String based error code.
* @param string $error_message User facing error message.
* @param int $http_status_code HTTP status. Defaults to 500.
* @param array $additional_data Extra data (key value pairs) to expose in the error response.
* @return \WP_Error WP Error object.
*/
protected function get_route_error_response( $error_code, $error_message, $http_status_code = 500, $additional_data = [] ) {
return new \WP_Error( $error_code, $error_message, array_merge( $additional_data, [ 'status' => $http_status_code ] ) );
}
/**
* Get route response when something went wrong and the supplied error is a WP_Error. This currently only happens
* when an item in the cart is out of stock, partially out of stock, can only be bought individually, or when the
* item is not purchasable.
*
* @param WP_Error $error_object The WP_Error object containing the error.
* @param int $http_status_code HTTP status. Defaults to 500.
* @param array $additional_data Extra data (key value pairs) to expose in the error response.
* @return WP_Error WP Error object.
*/
protected function get_route_error_response_from_object( $error_object, $http_status_code = 500, $additional_data = [] ) {
$error_object->add_data( array_merge( $additional_data, [ 'status' => $http_status_code ] ) );
return $error_object;
}
/**
* Prepare a single item for response.
*
* @param mixed $item Item to format to schema.
* @param \WP_REST_Request $request Request object.
* @return \WP_REST_Response $response Response data.
*/
public function prepare_item_for_response( $item, \WP_REST_Request $request ) {
$response = rest_ensure_response( $this->schema->get_item_response( $item ) );
$response->add_links( $this->prepare_links( $item, $request ) );
return $response;
}
/**
* Retrieves the context param.
*
* Ensures consistent descriptions between endpoints, and populates enum from schema.
*
* @param array $args Optional. Additional arguments for context parameter. Default empty array.
* @return array Context parameter details.
*/
protected function get_context_param( $args = array() ) {
$param_details = array(
'description' => __( 'Scope under which the request is made; determines fields present in response.', 'woocommerce' ),
'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 );
}
/**
* Prepares a response for insertion into a collection.
*
* @param \WP_REST_Response $response Response object.
* @return array|mixed Response data, ready for insertion into collection data.
*/
protected function prepare_response_for_collection( \WP_REST_Response $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;
}
/**
* Prepare links for the request.
*
* @param mixed $item Item to prepare.
* @param \WP_REST_Request $request Request object.
* @return array
*/
protected function prepare_links( $item, $request ) {
return [];
}
/**
* Retrieves the query params for the collections.
*
* @return array Query parameters for the collection.
*/
public function get_collection_params() {
return array(
'context' => $this->get_context_param(),
);
}
}
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