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<?php
namespace Automattic\WooCommerce\StoreApi\Routes\V1;
use Automattic\WooCommerce\Blocks\Domain\Services\CheckoutFields;
use Automattic\WooCommerce\StoreApi\Payments\PaymentResult;
use Automattic\WooCommerce\StoreApi\Exceptions\InvalidStockLevelsInCartException;
use Automattic\WooCommerce\StoreApi\Exceptions\InvalidCartException;
use Automattic\WooCommerce\StoreApi\Exceptions\RouteException;
use Automattic\WooCommerce\StoreApi\Utilities\DraftOrderTrait;
use Automattic\WooCommerce\Checkout\Helpers\ReserveStock;
use Automattic\WooCommerce\Checkout\Helpers\ReserveStockException;
use Automattic\WooCommerce\StoreApi\Utilities\CheckoutTrait;
use Automattic\WooCommerce\StoreApi\SchemaController;
use Automattic\WooCommerce\StoreApi\Schemas\V1\AbstractSchema;
use Automattic\WooCommerce\Blocks\Package;
/**
* Checkout class.
*/
class Checkout extends AbstractCartRoute {
use DraftOrderTrait;
use CheckoutTrait;
/**
* The route identifier.
*
* @var string
*/
const IDENTIFIER = 'checkout';
/**
* The routes schema.
*
* @var string
*/
const SCHEMA_TYPE = 'checkout';
/**
* Holds the current order being processed.
*
* @var \WC_Order
*/
private $order = null;
/**
* Get the path of this REST route.
*
* @return string
*/
public function get_path() {
return '/checkout';
}
/**
* Checks if a nonce is required for the route.
*
* @param \WP_REST_Request $request Request.
* @return bool
*/
protected function requires_nonce( \WP_REST_Request $request ) {
return true;
}
/**
* Get method arguments for this REST route.
*
* @return array An array of endpoints.
*/
public function get_args() {
return [
[
'methods' => \WP_REST_Server::READABLE,
'callback' => [ $this, 'get_response' ],
'permission_callback' => '__return_true',
'args' => [
'context' => $this->get_context_param( [ 'default' => 'view' ] ),
],
],
[
'methods' => \WP_REST_Server::CREATABLE,
'callback' => [ $this, 'get_response' ],
'permission_callback' => '__return_true',
'args' => array_merge(
[
'payment_data' => [
'description' => __( 'Data to pass through to the payment method when processing payment.', 'woocommerce' ),
'type' => 'array',
'items' => [
'type' => 'object',
'properties' => [
'key' => [
'type' => 'string',
],
'value' => [
'type' => [ 'string', 'boolean' ],
],
],
],
],
],
$this->schema->get_endpoint_args_for_item_schema( \WP_REST_Server::CREATABLE )
),
],
'schema' => [ $this->schema, 'get_public_item_schema' ],
'allow_batch' => [ 'v1' => true ],
];
}
/**
* 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 ) {
$this->load_cart_session( $request );
$this->cart_controller->calculate_totals();
$response = null;
$nonce_check = $this->requires_nonce( $request ) ? $this->check_nonce( $request ) : null;
if ( is_wp_error( $nonce_check ) ) {
$response = $nonce_check;
}
if ( ! $response ) {
try {
$response = $this->get_response_by_request_method( $request );
} catch ( InvalidCartException $error ) {
$response = $this->get_route_error_response_from_object( $error->getError(), $error->getCode(), $error->getAdditionalData() );
} catch ( RouteException $error ) {
$response = $this->get_route_error_response( $error->getErrorCode(), $error->getMessage(), $error->getCode(), $error->getAdditionalData() );
} catch ( \Exception $error ) {
$response = $this->get_route_error_response( 'woocommerce_rest_unknown_server_error', $error->getMessage(), 500 );
}
}
if ( is_wp_error( $response ) ) {
$response = $this->error_to_response( $response );
}
return $this->add_response_headers( $response );
}
/**
* Convert the cart into a new draft order, or update an existing draft order, and return an updated cart 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 ) {
$this->create_or_update_draft_order( $request );
return $this->prepare_item_for_response(
(object) [
'order' => $this->order,
'payment_result' => new PaymentResult(),
],
$request
);
}
/**
* Process an order.
*
* 1. Obtain Draft Order
* 2. Process Request
* 3. Process Customer
* 4. Validate Order
* 5. Process Payment
*
* @throws RouteException On error.
* @throws InvalidStockLevelsInCartException On error.
*
* @param \WP_REST_Request $request Request object.
*
* @return \WP_REST_Response
*/
protected function get_route_post_response( \WP_REST_Request $request ) {
/**
* Validate items etc are allowed in the order before the order is processed. This will fix violations and tell
* the customer.
*/
$this->cart_controller->validate_cart();
/**
* Obtain Draft Order and process request data.
*
* Note: Customer data is persisted from the request first so that OrderController::update_addresses_from_cart
* uses the up to date customer address.
*/
$this->update_customer_from_request( $request );
$this->create_or_update_draft_order( $request );
$this->update_order_from_request( $request );
/**
* Process customer data.
*
* Update order with customer details, and sign up a user account as necessary.
*/
$this->process_customer( $request );
/**
* Validate order.
*
* This logic ensures the order is valid before payment is attempted.
*/
$this->order_controller->validate_order_before_payment( $this->order );
wc_do_deprecated_action(
'__experimental_woocommerce_blocks_checkout_order_processed',
array(
$this->order,
),
'6.3.0',
'woocommerce_store_api_checkout_order_processed',
'This action was deprecated in WooCommerce Blocks version 6.3.0. Please use woocommerce_store_api_checkout_order_processed instead.'
);
wc_do_deprecated_action(
'woocommerce_blocks_checkout_order_processed',
array(
$this->order,
),
'7.2.0',
'woocommerce_store_api_checkout_order_processed',
'This action was deprecated in WooCommerce Blocks version 7.2.0. Please use woocommerce_store_api_checkout_order_processed instead.'
);
/**
* Fires before an order is processed by the Checkout Block/Store API.
*
* This hook informs extensions that $order has completed processing and is ready for payment.
*
* This is similar to existing core hook woocommerce_checkout_order_processed. We're using a new action:
* - To keep the interface focused (only pass $order, not passing request data).
* - This also explicitly indicates these orders are from checkout block/StoreAPI.
*
* @since 7.2.0
*
* @see https://github.com/woocommerce/woocommerce-gutenberg-products-block/pull/3238
* @example See docs/examples/checkout-order-processed.md
* @param \WC_Order $order Order object.
*/
do_action( 'woocommerce_store_api_checkout_order_processed', $this->order );
/**
* Process the payment and return the results.
*/
$payment_result = new PaymentResult();
if ( $this->order->needs_payment() ) {
$this->process_payment( $request, $payment_result );
} else {
$this->process_without_payment( $request, $payment_result );
}
return $this->prepare_item_for_response(
(object) [
'order' => wc_get_order( $this->order ),
'payment_result' => $payment_result,
],
$request
);
}
/**
* 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 = [] ) {
$error_from_message = new \WP_Error(
$error_code,
$error_message
);
// 409 is when there was a conflict, so we return the cart so the client can resolve it.
if ( 409 === $http_status_code ) {
return $this->add_data_to_error_object( $error_from_message, $additional_data, $http_status_code, true );
}
return $this->add_data_to_error_object( $error_from_message, $additional_data, $http_status_code );
}
/**
* Get route response when something went wrong.
*
* @param \WP_Error $error_object 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_from_object( $error_object, $http_status_code = 500, $additional_data = [] ) {
// 409 is when there was a conflict, so we return the cart so the client can resolve it.
if ( 409 === $http_status_code ) {
return $this->add_data_to_error_object( $error_object, $additional_data, $http_status_code, true );
}
return $this->add_data_to_error_object( $error_object, $additional_data, $http_status_code );
}
/**
* Adds additional data to the \WP_Error object.
*
* @param \WP_Error $error The error object to add the cart to.
* @param array $data The data to add to the error object.
* @param int $http_status_code The HTTP status code this error should return.
* @param bool $include_cart Whether the cart should be included in the error data.
* @returns \WP_Error The \WP_Error with the cart added.
*/
private function add_data_to_error_object( $error, $data, $http_status_code, bool $include_cart = false ) {
$data = array_merge( $data, [ 'status' => $http_status_code ] );
if ( $include_cart ) {
$data = array_merge( $data, [ 'cart' => wc()->api->get_endpoint_data( '/wc/store/v1/cart' ) ] );
}
$error->add_data( $data );
return $error;
}
/**
* Create or update a draft order based on the cart.
*
* @param \WP_REST_Request $request Full details about the request.
* @throws RouteException On error.
*/
private function create_or_update_draft_order( \WP_REST_Request $request ) {
$this->order = $this->get_draft_order();
if ( ! $this->order ) {
$this->order = $this->order_controller->create_order_from_cart();
} else {
$this->order_controller->update_order_from_cart( $this->order, true );
}
wc_do_deprecated_action(
'__experimental_woocommerce_blocks_checkout_update_order_meta',
array(
$this->order,
),
'6.3.0',
'woocommerce_store_api_checkout_update_order_meta',
'This action was deprecated in WooCommerce Blocks version 6.3.0. Please use woocommerce_store_api_checkout_update_order_meta instead.'
);
wc_do_deprecated_action(
'woocommerce_blocks_checkout_update_order_meta',
array(
$this->order,
),
'7.2.0',
'woocommerce_store_api_checkout_update_order_meta',
'This action was deprecated in WooCommerce Blocks version 7.2.0. Please use woocommerce_store_api_checkout_update_order_meta instead.'
);
/**
* Fires when the Checkout Block/Store API updates an order's meta data.
*
* This hook gives extensions the chance to add or update meta data on the $order.
* Throwing an exception from a callback attached to this action will make the Checkout Block render in a warning state, effectively preventing checkout.
*
* This is similar to existing core hook woocommerce_checkout_update_order_meta.
* We're using a new action:
* - To keep the interface focused (only pass $order, not passing request data).
* - This also explicitly indicates these orders are from checkout block/StoreAPI.
*
* @since 7.2.0
*
* @see https://github.com/woocommerce/woocommerce-gutenberg-products-block/pull/3686
*
* @param \WC_Order $order Order object.
*/
do_action( 'woocommerce_store_api_checkout_update_order_meta', $this->order );
// Confirm order is valid before proceeding further.
if ( ! $this->order instanceof \WC_Order ) {
throw new RouteException(
'woocommerce_rest_checkout_missing_order',
__( 'Unable to create order', 'woocommerce' ),
500
);
}
// Store order ID to session.
$this->set_draft_order_id( $this->order->get_id() );
/**
* Try to reserve stock for the order.
*
* If creating a draft order on checkout entry, set the timeout to 10 mins.
* If POSTing to the checkout (attempting to pay), set the timeout to 60 mins (using the woocommerce_hold_stock_minutes option).
*/
try {
$reserve_stock = new ReserveStock();
$duration = $request->get_method() === 'POST' ? (int) get_option( 'woocommerce_hold_stock_minutes', 60 ) : 10;
$reserve_stock->reserve_stock_for_order( $this->order, $duration );
} catch ( ReserveStockException $e ) {
throw new RouteException(
$e->getErrorCode(),
$e->getMessage(),
$e->getCode()
);
}
}
/**
* Updates the current customer session using data from the request (e.g. address data).
*
* Address session data is synced to the order itself later on by OrderController::update_order_from_cart()
*
* @param \WP_REST_Request $request Full details about the request.
*/
private function update_customer_from_request( \WP_REST_Request $request ) {
$customer = wc()->customer;
// Billing address is a required field.
foreach ( $request['billing_address'] as $key => $value ) {
if ( is_callable( [ $customer, "set_billing_$key" ] ) ) {
$customer->{"set_billing_$key"}( $value );
} elseif ( $this->additional_fields_controller->is_field( $key, 'address' ) ) {
$this->additional_fields_controller->persist_field_for_customer( "/billing/$key", $value, $customer );
}
}
// If shipping address (optional field) was not provided, set it to the given billing address (required field).
$shipping_address_values = $request['shipping_address'] ?? $request['billing_address'];
foreach ( $shipping_address_values as $key => $value ) {
if ( is_callable( [ $customer, "set_shipping_$key" ] ) ) {
$customer->{"set_shipping_$key"}( $value );
} elseif ( 'phone' === $key ) {
$customer->update_meta_data( 'shipping_phone', $value );
} elseif ( $this->additional_fields_controller->is_field( $key, 'address' ) ) {
$this->additional_fields_controller->persist_field_for_customer( "/shipping/$key", $value, $customer );
}
}
/**
* Fires when the Checkout Block/Store API updates a customer from the API request data.
*
* @since 8.2.0
*
* @param \WC_Customer $customer Customer object.
* @param \WP_REST_Request $request Full details about the request.
*/
do_action( 'woocommerce_store_api_checkout_update_customer_from_request', $customer, $request );
$customer->save();
}
/**
* Gets the chosen payment method from the request.
*
* @throws RouteException On error.
* @param \WP_REST_Request $request Request object.
* @return \WC_Payment_Gateway|null
*/
private function get_request_payment_method( \WP_REST_Request $request ) {
$available_gateways = WC()->payment_gateways->get_available_payment_gateways();
$request_payment_method = wc_clean( wp_unslash( $request['payment_method'] ?? '' ) );
$requires_payment_method = $this->order->needs_payment();
if ( empty( $request_payment_method ) ) {
if ( $requires_payment_method ) {
throw new RouteException(
'woocommerce_rest_checkout_missing_payment_method',
__( 'No payment method provided.', 'woocommerce' ),
400
);
}
return null;
}
if ( ! isset( $available_gateways[ $request_payment_method ] ) ) {
$all_payment_gateways = WC()->payment_gateways->payment_gateways();
$gateway_title = isset( $all_payment_gateways[ $request_payment_method ] ) ? $all_payment_gateways[ $request_payment_method ]->get_title() : $request_payment_method;
throw new RouteException(
'woocommerce_rest_checkout_payment_method_disabled',
sprintf(
// Translators: %s Payment method ID.
__( '%s is not available for this order—please choose a different payment method', 'woocommerce' ),
esc_html( $gateway_title )
),
400
);
}
return $available_gateways[ $request_payment_method ];
}
/**
* Order processing relating to customer account.
*
* Creates a customer account as needed (based on request & store settings) and updates the order with the new customer ID.
* Updates the order with user details (e.g. address).
*
* @throws RouteException API error object with error details.
* @param \WP_REST_Request $request Request object.
*/
private function process_customer( \WP_REST_Request $request ) {
try {
if ( $this->should_create_customer_account( $request ) ) {
$customer_id = $this->create_customer_account(
$request['billing_address']['email'],
$request['billing_address']['first_name'],
$request['billing_address']['last_name']
);
// Associate customer with the order. This is done before login to ensure the order is associated with
// the correct customer if login fails.
$this->order->set_customer_id( $customer_id );
$this->order->save();
// Log the customer in to WordPress. Doing this inline instead of using `wc_set_customer_auth_cookie`
// because wc_set_customer_auth_cookie forces the use of session cookie.
wp_set_current_user( $customer_id );
wp_set_auth_cookie( $customer_id, true );
// Init session cookie if the session cookie handler exists.
if ( is_callable( [ WC()->session, 'init_session_cookie' ] ) ) {
WC()->session->init_session_cookie();
}
}
} catch ( \Exception $error ) {
switch ( $error->getMessage() ) {
case 'registration-error-invalid-email':
throw new RouteException(
'registration-error-invalid-email',
__( 'Please provide a valid email address.', 'woocommerce' ),
400
);
case 'registration-error-email-exists':
throw new RouteException(
'registration-error-email-exists',
__( 'An account is already registered with your email address. Please log in before proceeding.', 'woocommerce' ),
400
);
}
}
// Persist customer address data to account.
$this->order_controller->sync_customer_data_with_order( $this->order );
}
/**
* Check request options and store (shop) config to determine if a user account should be created as part of order
* processing.
*
* @param \WP_REST_Request $request The current request object being handled.
* @return boolean True if a new user account should be created.
*/
private function should_create_customer_account( \WP_REST_Request $request ) {
if ( is_user_logged_in() ) {
return false;
}
// Return false if registration is not enabled for the store.
if ( false === filter_var( wc()->checkout()->is_registration_enabled(), FILTER_VALIDATE_BOOLEAN ) ) {
return false;
}
// Return true if the store requires an account for all purchases. Note - checkbox is not displayed to shopper in this case.
if ( true === filter_var( wc()->checkout()->is_registration_required(), FILTER_VALIDATE_BOOLEAN ) ) {
return true;
}
// Create an account if requested via the endpoint.
if ( true === filter_var( $request['create_account'], FILTER_VALIDATE_BOOLEAN ) ) {
// User has requested an account as part of checkout processing.
return true;
}
return false;
}
/**
* Create a new account for a customer.
*
* The account is created with a generated username. The customer is sent
* an email notifying them about the account and containing a link to set
* their (initial) password.
*
* Intended as a replacement for wc_create_new_customer in WC core.
*
* @throws \Exception If an error is encountered when creating the user account.
*
* @param string $user_email The email address to use for the new account.
* @param string $first_name The first name to use for the new account.
* @param string $last_name The last name to use for the new account.
*
* @return int User id if successful
*/
private function create_customer_account( $user_email, $first_name, $last_name ) {
if ( empty( $user_email ) || ! is_email( $user_email ) ) {
throw new \Exception( 'registration-error-invalid-email' );
}
if ( email_exists( $user_email ) ) {
throw new \Exception( 'registration-error-email-exists' );
}
$username = wc_create_new_customer_username( $user_email );
// Handle password creation.
$password = wp_generate_password();
$password_generated = true;
// Use WP_Error to handle registration errors.
$errors = new \WP_Error();
/**
* Fires before a customer account is registered.
*
* This hook fires before customer accounts are created and passes the form data (username, email) and an array
* of errors.
*
* This could be used to add extra validation logic and append errors to the array.
*
* @since 7.2.0
*
* @internal Matches filter name in WooCommerce core.
*
* @param string $username Customer username.
* @param string $user_email Customer email address.
* @param \WP_Error $errors Error object.
*/
do_action( 'woocommerce_register_post', $username, $user_email, $errors );
/**
* Filters registration errors before a customer account is registered.
*
* This hook filters registration errors. This can be used to manipulate the array of errors before
* they are displayed.
*
* @since 7.2.0
*
* @internal Matches filter name in WooCommerce core.
*
* @param \WP_Error $errors Error object.
* @param string $username Customer username.
* @param string $user_email Customer email address.
* @return \WP_Error
*/
$errors = apply_filters( 'woocommerce_registration_errors', $errors, $username, $user_email );
if ( is_wp_error( $errors ) && $errors->get_error_code() ) {
throw new \Exception( $errors->get_error_code() );
}
/**
* Filters customer data before a customer account is registered.
*
* This hook filters customer data. It allows user data to be changed, for example, username, password, email,
* first name, last name, and role.
*
* @since 7.2.0
*
* @param array $customer_data An array of customer (user) data.
* @return array
*/
$new_customer_data = apply_filters(
'woocommerce_new_customer_data',
array(
'user_login' => $username,
'user_pass' => $password,
'user_email' => $user_email,
'first_name' => $first_name,
'last_name' => $last_name,
'role' => 'customer',
'source' => 'store-api',
)
);
$customer_id = wp_insert_user( $new_customer_data );
if ( is_wp_error( $customer_id ) ) {
throw $this->map_create_account_error( $customer_id );
}
// Set account flag to remind customer to update generated password.
update_user_option( $customer_id, 'default_password_nag', true, true );
/**
* Fires after a customer account has been registered.
*
* This hook fires after customer accounts are created and passes the customer data.
*
* @since 7.2.0
*
* @internal Matches filter name in WooCommerce core.
*
* @param integer $customer_id New customer (user) ID.
* @param array $new_customer_data Array of customer (user) data.
* @param string $password_generated The generated password for the account.
*/
do_action( 'woocommerce_created_customer', $customer_id, $new_customer_data, $password_generated );
return $customer_id;
}
/**
* Convert an account creation error to an exception.
*
* @param \WP_Error $error An error object.
* @return \Exception.
*/
private function map_create_account_error( \WP_Error $error ) {
switch ( $error->get_error_code() ) {
// WordPress core error codes.
case 'empty_username':
case 'invalid_username':
case 'empty_email':
case 'invalid_email':
case 'email_exists':
case 'registerfail':
return new \Exception( 'woocommerce_rest_checkout_create_account_failure' );
}
return new \Exception( 'woocommerce_rest_checkout_create_account_failure' );
}
}