File "ExtendRestApi.php"
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Charset: utf-8
<?php
namespace Automattic\WooCommerce\Blocks\Domain\Services;
use Automattic\WooCommerce\Blocks\Domain\Package;
use Automattic\WooCommerce\Blocks\StoreApi\Schemas\CartItemSchema;
use Automattic\WooCommerce\Blocks\StoreApi\Schemas\CartSchema;
use Automattic\WooCommerce\Blocks\StoreApi\Formatters;
use Throwable;
use Exception;
/**
* Service class to provide utility functions to extend REST API.
*/
final class ExtendRestApi {
/**
* Holds the Package instance
*
* @var Package
*/
private $package;
/**
* Holds the formatters class instance.
*
* @var Formatters
*/
private $formatters;
/**
* Constructor
*
* @param Package $package An instance of the package class.
* @param Formatters $formatters An instance of the formatters class.
*/
public function __construct( Package $package, Formatters $formatters ) {
$this->package = $package;
$this->formatters = $formatters;
}
/**
* Returns a formatter instance.
*
* @param string $name Formatter name.
* @return FormatterInterface
*/
public function get_formatter( $name ) {
return $this->formatters->$name;
}
/**
* Valid endpoints to extend
*
* @var array
*/
private $endpoints = [ CartItemSchema::IDENTIFIER, CartSchema::IDENTIFIER ];
/**
* Data to be extended
*
* @var array
*/
private $extend_data = [];
/**
* Array of payment requirements
*
* @var array
*/
private $payment_requirements = [];
/**
* An endpoint that validates registration method call
*
* @param array $args {
* An array of elements that make up a post to update or insert.
*
* @type string $endpoint The endpoint to extend.
* @type string $namespace Plugin namespace.
* @type callable $schema_callback Callback executed to add schema data.
* @type callable $data_callback Callback executed to add endpoint data.
* @type string $data_type The type of data, object or array.
* }
*
* @throws Exception On failure to register.
* @return boolean True on success.
*/
public function register_endpoint_data( $args ) {
if ( ! is_string( $args['namespace'] ) ) {
$this->throw_exception( 'You must provide a plugin namespace when extending a Store REST endpoint.' );
}
if ( ! is_string( $args['endpoint'] ) || ! in_array( $args['endpoint'], $this->endpoints, true ) ) {
$this->throw_exception(
sprintf( 'You must provide a valid Store REST endpoint to extend, valid endpoints are: %1$s. You provided %2$s.', implode( ', ', $this->endpoints ), $args['endpoint'] )
);
}
if ( ! is_callable( $args['schema_callback'] ) ) {
$this->throw_exception( '$schema_callback must be a callable function.' );
}
if ( ! is_callable( $args['data_callback'] ) ) {
$this->throw_exception( '$data_callback must be a callable function.' );
}
if ( isset( $args['data_type'] ) && ! in_array( $args['data_type'], [ ARRAY_N, ARRAY_A ], true ) ) {
$this->throw_exception(
sprintf( 'Data type must be either ARRAY_N for a numeric array or ARRAY_A for an object like array. You provided %1$s.', $args['data_type'] )
);
}
$this->extend_data[ $args['endpoint'] ][ $args['namespace'] ] = [
'schema_callback' => $args['schema_callback'],
'data_callback' => $args['data_callback'],
'data_type' => isset( $args['data_type'] ) ? $args['data_type'] : ARRAY_A,
];
return true;
}
/**
* Returns the registered endpoint data
*
* @param string $endpoint A valid identifier.
* @param array $passed_args Passed arguments from the Schema class.
* @return object Returns an casted object with registered endpoint data.
* @throws Exception If a registered callback throws an error, or silently logs it.
*/
public function get_endpoint_data( $endpoint, array $passed_args = [] ) {
$registered_data = [];
if ( ! isset( $this->extend_data[ $endpoint ] ) ) {
return (object) $registered_data;
}
foreach ( $this->extend_data[ $endpoint ] as $namespace => $callbacks ) {
$data = [];
try {
$data = $callbacks['data_callback']( ...$passed_args );
if ( ! is_array( $data ) ) {
throw new Exception( '$data_callback must return an array.' );
}
} catch ( Throwable $e ) {
$this->throw_exception( $e );
continue;
}
$registered_data[ $namespace ] = $data;
}
return (object) $registered_data;
}
/**
* Returns the registered endpoint schema
*
* @param string $endpoint A valid identifier.
* @param array $passed_args Passed arguments from the Schema class.
* @return array Returns an array with registered schema data.
* @throws Exception If a registered callback throws an error, or silently logs it.
*/
public function get_endpoint_schema( $endpoint, array $passed_args = [] ) {
$registered_schema = [];
if ( ! isset( $this->extend_data[ $endpoint ] ) ) {
return (object) $registered_schema;
}
foreach ( $this->extend_data[ $endpoint ] as $namespace => $callbacks ) {
$schema = [];
try {
$schema = $callbacks['schema_callback']( ...$passed_args );
if ( ! is_array( $schema ) ) {
throw new Exception( '$schema_callback must return an array.' );
}
} catch ( Throwable $e ) {
$this->throw_exception( $e );
continue;
}
$schema = $this->format_extensions_properties( $namespace, $schema, $callbacks['data_type'] );
$registered_schema[ $namespace ] = $schema;
}
return (object) $registered_schema;
}
/**
* Registers and validates payment requirements callbacks.
*
* @param array $args {
* Array of registration data.
*
* @type callable $data_callback Callback executed to add payment requirements data.
* }
*
* @throws Exception On failure to register.
* @return boolean True on success.
*/
public function register_payment_requirements( $args ) {
if ( ! is_callable( $args['data_callback'] ) ) {
$this->throw_exception( '$data_callback must be a callable function.' );
}
$this->payment_requirements[] = $args['data_callback'];
return true;
}
/**
* Returns the additional payment requirements.
*
* @param array $initial_requirements list of requirements that should be added to the collected requirements.
* @return array Returns a list of payment requirements.
* @throws Exception If a registered callback throws an error, or silently logs it.
*/
public function get_payment_requirements( array $initial_requirements = [ 'products' ] ) {
$requirements = $initial_requirements;
if ( empty( $this->payment_requirements ) ) {
return $initial_requirements;
}
foreach ( $this->payment_requirements as $callback ) {
$data = [];
try {
$data = $callback();
if ( ! is_array( $data ) ) {
throw new Exception( '$data_callback must return an array.' );
}
} catch ( Throwable $e ) {
$this->throw_exception( $e );
continue;
}
$requirements = array_merge( $requirements, $data );
}
return array_unique( $requirements );
}
/**
* Throws error and/or silently logs it.
*
* @param string|Throwable $exception_or_error Error message or Exception.
* @throws Exception An error to throw if we have debug enabled and user is admin.
*/
private function throw_exception( $exception_or_error ) {
if ( is_string( $exception_or_error ) ) {
$exception = new Exception( $exception_or_error );
} else {
$exception = $exception_or_error;
}
// Always log an error.
wc_caught_exception( $exception );
if ( defined( 'WP_DEBUG' ) && WP_DEBUG && current_user_can( 'manage_woocommerce' ) ) {
throw $exception;
}
}
/**
* Format schema for an extension.
*
* @param string $namespace Error message or Exception.
* @param array $schema An error to throw if we have debug enabled and user is admin.
* @param string $data_type How should data be shaped.
*
* @return array Formatted schema.
*/
private function format_extensions_properties( $namespace, $schema, $data_type ) {
if ( ARRAY_N === $data_type ) {
return [
/* translators: %s: extension namespace */
'description' => sprintf( __( 'Extension data registered by %s', 'woocommerce' ), $namespace ),
'type' => [ 'array', 'null' ],
'context' => [ 'view', 'edit' ],
'readonly' => true,
'items' => $schema,
];
}
return [
/* translators: %s: extension namespace */
'description' => sprintf( __( 'Extension data registered by %s', 'woocommerce' ), $namespace ),
'type' => [ 'object', 'null' ],
'context' => [ 'view', 'edit' ],
'readonly' => true,
'properties' => $schema,
];
}
}