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<?php
namespace Automattic\WooCommerce\StoreApi\Schemas\V1;
use Automattic\WooCommerce\StoreApi\SchemaController;
use Automattic\WooCommerce\StoreApi\Payments\PaymentResult;
use Automattic\WooCommerce\StoreApi\Schemas\ExtendSchema;
use Automattic\WooCommerce\Blocks\Domain\Services\CheckoutFields;
use Automattic\WooCommerce\Blocks\Package;
use Automattic\WooCommerce\StoreApi\Utilities\SanitizationUtils;
/**
* CheckoutSchema class.
*/
class CheckoutSchema extends AbstractSchema {
/**
* The schema item name.
*
* @var string
*/
protected $title = 'checkout';
/**
* The schema item identifier.
*
* @var string
*/
const IDENTIFIER = 'checkout';
/**
* Billing address schema instance.
*
* @var BillingAddressSchema
*/
protected $billing_address_schema;
/**
* Shipping address schema instance.
*
* @var ShippingAddressSchema
*/
protected $shipping_address_schema;
/**
* Image Attachment schema instance.
*
* @var ImageAttachmentSchema
*/
protected $image_attachment_schema;
/**
* Additional fields controller.
*
* @var CheckoutFields
*/
protected $additional_fields_controller;
/**
* Constructor.
*
* @param ExtendSchema $extend Rest Extending instance.
* @param SchemaController $controller Schema Controller instance.
*/
public function __construct( ExtendSchema $extend, SchemaController $controller ) {
parent::__construct( $extend, $controller );
$this->billing_address_schema = $this->controller->get( BillingAddressSchema::IDENTIFIER );
$this->shipping_address_schema = $this->controller->get( ShippingAddressSchema::IDENTIFIER );
$this->image_attachment_schema = $this->controller->get( ImageAttachmentSchema::IDENTIFIER );
$this->additional_fields_controller = Package::container()->get( CheckoutFields::class );
}
/**
* Checkout schema properties.
*
* @return array
*/
public function get_properties() {
$additional_field_schema = $this->get_additional_fields_schema();
return [
'order_id' => [
'description' => __( 'The order ID to process during checkout.', 'woocommerce' ),
'type' => 'integer',
'context' => [ 'view', 'edit' ],
'readonly' => true,
],
'status' => [
'description' => __( 'Order status. Payment providers will update this value after payment.', 'woocommerce' ),
'type' => 'string',
'context' => [ 'view', 'edit' ],
'readonly' => true,
],
'order_key' => [
'description' => __( 'Order key used to check validity or protect access to certain order data.', 'woocommerce' ),
'type' => 'string',
'context' => [ 'view', 'edit' ],
'readonly' => true,
],
'order_number' => [
'description' => __( 'Order number used for display.', 'woocommerce' ),
'type' => 'string',
'context' => [ 'view', 'edit' ],
'readonly' => true,
],
'customer_note' => [
'description' => __( 'Note added to the order by the customer during checkout.', 'woocommerce' ),
'type' => 'string',
'context' => [ 'view', 'edit' ],
],
'customer_id' => [
'description' => __( 'Customer ID if registered. Will return 0 for guests.', 'woocommerce' ),
'type' => 'integer',
'context' => [ 'view', 'edit' ],
'readonly' => true,
],
'billing_address' => [
'description' => __( 'Billing address.', 'woocommerce' ),
'type' => 'object',
'context' => [ 'view', 'edit' ],
'properties' => $this->billing_address_schema->get_properties(),
'arg_options' => [
'sanitize_callback' => [ $this->billing_address_schema, 'sanitize_callback' ],
'validate_callback' => [ $this->billing_address_schema, 'validate_callback' ],
],
'required' => true,
],
'shipping_address' => [
'description' => __( 'Shipping address.', 'woocommerce' ),
'type' => 'object',
'context' => [ 'view', 'edit' ],
'properties' => $this->shipping_address_schema->get_properties(),
'arg_options' => [
'sanitize_callback' => [ $this->shipping_address_schema, 'sanitize_callback' ],
'validate_callback' => [ $this->shipping_address_schema, 'validate_callback' ],
],
],
'payment_method' => [
'description' => __( 'The ID of the payment method being used to process the payment.', 'woocommerce' ),
'type' => 'string',
'context' => [ 'view', 'edit' ],
// Validation may be based on cart contents which is not available here; this returns all enabled
// gateways. Further validation occurs during the request.
'enum' => array_values( WC()->payment_gateways->get_payment_gateway_ids() ),
],
'create_account' => [
'description' => __( 'Whether to create a new user account as part of order processing.', 'woocommerce' ),
'type' => 'boolean',
'context' => [ 'view', 'edit' ],
],
'payment_result' => [
'description' => __( 'Result of payment processing, or false if not yet processed.', 'woocommerce' ),
'type' => 'object',
'context' => [ 'view', 'edit' ],
'readonly' => true,
'properties' => [
'payment_status' => [
'description' => __( 'Status of the payment returned by the gateway. One of success, pending, failure, error.', 'woocommerce' ),
'readonly' => true,
'type' => 'string',
],
'payment_details' => [
'description' => __( 'An array of data being returned from the payment gateway.', 'woocommerce' ),
'readonly' => true,
'type' => 'array',
'items' => [
'type' => 'object',
'properties' => [
'key' => [
'type' => 'string',
],
'value' => [
'type' => 'string',
],
],
],
],
'redirect_url' => [
'description' => __( 'A URL to redirect the customer after checkout. This could be, for example, a link to the payment processors website.', 'woocommerce' ),
'readonly' => true,
'type' => 'string',
],
],
],
'additional_fields' => [
'description' => __( 'Additional fields to be persisted on the order.', 'woocommerce' ),
'type' => 'object',
'context' => [ 'view', 'edit' ],
'properties' => $additional_field_schema,
'arg_options' => [
'sanitize_callback' => [ $this, 'sanitize_additional_fields' ],
'validate_callback' => [ $this, 'validate_additional_fields' ],
],
'required' => $this->schema_has_required_property( $additional_field_schema ),
],
self::EXTENDING_KEY => $this->get_extended_schema( self::IDENTIFIER ),
];
}
/**
* Return the response for checkout.
*
* @param object $item Results from checkout action.
* @return array
*/
public function get_item_response( $item ) {
return $this->get_checkout_response( $item->order, $item->payment_result );
}
/**
* Get the checkout response based on the current order and any payments.
*
* @param \WC_Order $order Order object.
* @param PaymentResult $payment_result Payment result object.
* @return array
*/
protected function get_checkout_response( \WC_Order $order, PaymentResult $payment_result = null ) {
return [
'order_id' => $order->get_id(),
'status' => $order->get_status(),
'order_key' => $order->get_order_key(),
'order_number' => $order->get_order_number(),
'customer_note' => $order->get_customer_note(),
'customer_id' => $order->get_customer_id(),
'billing_address' => (object) $this->billing_address_schema->get_item_response( $order ),
'shipping_address' => (object) $this->shipping_address_schema->get_item_response( $order ),
'payment_method' => $order->get_payment_method(),
'payment_result' => [
'payment_status' => $payment_result->status,
'payment_details' => $this->prepare_payment_details_for_response( $payment_result->payment_details ),
'redirect_url' => $payment_result->redirect_url,
],
'additional_fields' => $this->get_additional_fields_response( $order ),
self::EXTENDING_KEY => $this->get_extended_data( self::IDENTIFIER ),
];
}
/**
* This prepares the payment details for the response so it's following the
* schema where it's an array of objects.
*
* @param array $payment_details An array of payment details from the processed payment.
*
* @return array An array of objects where each object has the key and value
* as distinct properties.
*/
protected function prepare_payment_details_for_response( array $payment_details ) {
return array_map(
function ( $key, $value ) {
return (object) [
'key' => $key,
'value' => $value,
];
},
array_keys( $payment_details ),
$payment_details
);
}
/**
* Get the additional fields response.
*
* @param \WC_Order $order Order object.
* @return array
*/
protected function get_additional_fields_response( \WC_Order $order ) {
$fields = wp_parse_args(
$this->additional_fields_controller->get_all_fields_from_object( $order, 'other' ),
$this->additional_fields_controller->get_all_fields_from_object( wc()->customer, 'other' )
);
$additional_field_schema = $this->get_additional_fields_schema();
foreach ( $fields as $key => $value ) {
if ( ! isset( $additional_field_schema[ $key ] ) ) {
unset( $fields[ $key ] );
continue;
}
// This makes sure we're casting checkboxes from "1" and "0" to boolean. In the frontend, "0" is treated as truthy.
if ( isset( $additional_field_schema[ $key ]['type'] ) && 'boolean' === $additional_field_schema[ $key ]['type'] ) {
$fields[ $key ] = (bool) $value;
} else {
$fields[ $key ] = $this->prepare_html_response( $value );
}
}
return $fields;
}
/**
* Get the schema for additional fields.
*
* @return array
*/
protected function get_additional_fields_schema() {
return $this->generate_additional_fields_schema(
$this->additional_fields_controller->get_fields_for_location( 'contact' ),
$this->additional_fields_controller->get_fields_for_location( 'order' )
);
}
/**
* Generate the schema for additional fields.
*
* @param array[] ...$args One or more arrays of additional fields.
* @return array
*/
protected function generate_additional_fields_schema( ...$args ) {
$additional_fields = array_merge( ...$args );
$schema = [];
foreach ( $additional_fields as $key => $field ) {
$field_schema = [
'description' => $field['label'],
'type' => 'string',
'context' => [ 'view', 'edit' ],
'required' => $field['required'],
];
if ( 'select' === $field['type'] ) {
$field_schema['enum'] = array_map(
function ( $option ) {
return $option['value'];
},
$field['options']
);
if ( true !== $field['required'] ) {
$field_schema['enum'][] = '';
}
}
if ( 'checkbox' === $field['type'] ) {
$field_schema['type'] = 'boolean';
}
$schema[ $key ] = $field_schema;
}
return $schema;
}
/**
* Check if any additional field is required, so that the parent item is required as well.
*
* @param array $additional_fields_schema Additional fields schema.
* @return bool
*/
protected function schema_has_required_property( $additional_fields_schema ) {
return array_reduce(
array_keys( $additional_fields_schema ),
function ( $carry, $key ) use ( $additional_fields_schema ) {
return $carry || $additional_fields_schema[ $key ]['required'];
},
false
);
}
/**
* Sanitize and format additional fields object.
*
* @param array $fields Values being sanitized.
* @return array
*/
public function sanitize_additional_fields( $fields ) {
$properties = $this->get_additional_fields_schema();
$sanitization_utils = new SanitizationUtils();
$fields = $sanitization_utils->wp_kses_array(
array_reduce(
array_keys( $fields ),
function ( $carry, $key ) use ( $fields, $properties ) {
if ( ! isset( $properties[ $key ] ) ) {
return $carry;
}
$field_schema = $properties[ $key ];
$rest_sanitized = rest_sanitize_value_from_schema( wp_unslash( $fields[ $key ] ), $field_schema, $key );
$rest_sanitized = $this->additional_fields_controller->sanitize_field( $key, $rest_sanitized );
$carry[ $key ] = $rest_sanitized;
return $carry;
},
[]
)
);
return $sanitization_utils->wp_kses_array( $fields );
}
/**
* Validate additional fields object.
*
* @see rest_validate_value_from_schema
*
* @param array $fields Value being sanitized.
* @param \WP_REST_Request $request The Request.
* @return true|\WP_Error
*/
public function validate_additional_fields( $fields, $request ) {
$errors = new \WP_Error();
$fields = $this->sanitize_additional_fields( $fields );
$additional_field_schema = $this->get_additional_fields_schema();
// Loop over the schema instead of the fields. This is to ensure missing fields are validated.
foreach ( $additional_field_schema as $key => $schema ) {
if ( ! isset( $fields[ $key ] ) && ! $schema['required'] ) {
// Optional fields can go missing.
continue;
}
$field_value = isset( $fields[ $key ] ) ? $fields[ $key ] : null;
$result = rest_validate_value_from_schema( $field_value, $schema, $key );
// Only allow custom validation on fields that pass the schema validation.
if ( true === $result ) {
$result = $this->additional_fields_controller->validate_field( $key, $field_value );
}
if ( is_wp_error( $result ) && $result->has_errors() ) {
$location = $this->additional_fields_controller->get_field_location( $key );
foreach ( $result->get_error_codes() as $code ) {
$result->add_data(
array(
'location' => $location,
'key' => $key,
),
$code
);
}
$errors->merge_from( $result );
}
}
// Validate groups of properties per registered location.
$locations = array( 'contact', 'order' );
foreach ( $locations as $location ) {
$location_fields = $this->additional_fields_controller->filter_fields_for_location( $fields, $location );
$result = $this->additional_fields_controller->validate_fields_for_location( $location_fields, $location, 'other' );
if ( is_wp_error( $result ) && $result->has_errors() ) {
$errors->merge_from( $result );
}
}
return $errors->has_errors() ? $errors : true;
}
}
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