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<?php
namespace Elementor\Data\V2\Base;
use Elementor\Data\V2\Base\Exceptions\Data_Exception;
use Elementor\Data\V2\Base\Exceptions\Error_500;
use WP_REST_Server;
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly.
}
/**
* Class purpose is to separate routing logic into one file.
*/
abstract class Base_Route {
const AVAILABLE_METHODS = [
WP_REST_Server::READABLE,
WP_REST_Server::CREATABLE,
WP_REST_Server::EDITABLE,
WP_REST_Server::DELETABLE,
WP_REST_Server::ALLMETHODS,
];
/**
* Controller of current endpoint.
*
* @var \Elementor\Data\V2\Base\Controller
*/
protected $controller;
/**
* Current route, effect only in case the endpoint behave like sub-endpoint.
*
* @var string
*/
protected $route;
/**
* All register routes.
*
* @var array
*/
protected $routes = [];
/**
* Registered item route.
*
* @var array|null
*/
protected $item_route = null;
protected $id_arg_name = 'id';
protected $id_arg_type_regex = '[\d]+';
/**
* Ensure start-with and end-with slashes.
*
* '/' => '/'
* 'abc' => '/abc/'
* '/abc' => '/abc/'
* 'abc/' => '/abc/'
* '/abc/' => '/abc/'
*
* @param string $route
*
* @return string
*/
private function ensure_slashes( $route ) {
if ( '/' !== $route[0] ) {
$route = '/' . $route;
}
return trailingslashit( $route );
}
/**
* Get base route.
* This method should always return the base route starts with '/' and ends without '/'.
*
* @return string
*/
public function get_base_route() {
$name = $this->get_public_name();
$parent = $this->get_parent();
$parent_base = $parent->get_base_route();
$route = '/';
if ( ! ( $parent instanceof Controller ) ) {
$route = $parent->item_route ? $parent->item_route['route'] . '/' : $this->route;
}
return untrailingslashit( '/' . trim( $parent_base . $route . $name, '/' ) );
}
/**
* Get permission callback.
*
* By default get permission callback from the controller.
*
* @param \WP_REST_Request $request Full data about the request.
*
* @return boolean
*/
public function get_permission_callback( $request ) {
return $this->controller->get_permission_callback( $request );
}
/**
* Retrieves a collection of items.
*
* @param \WP_REST_Request $request Full data about the request.
*
* @return \WP_Error|\WP_REST_Response Response object on success, or WP_Error object on failure.
*/
protected function get_items( $request ) {
return new \WP_Error( 'invalid-method', sprintf( "Method '%s' not implemented. Must be overridden in subclass.", __METHOD__ ), [ 'status' => 405 ] );
}
/**
* Retrieves one item from the collection.
*
* @param string $id
* @param \WP_REST_Request $request Full data about the request.
*
* @return \WP_Error|\WP_REST_Response Response object on success, or WP_Error object on failure.
*/
protected function get_item( $id, $request ) {
return new \WP_Error( 'invalid-method', sprintf( "Method '%s' not implemented. Must be overridden in subclass.", __METHOD__ ), [ 'status' => 405 ] );
}
/**
* Creates multiple items.
*
* @param \WP_REST_Request $request Full data about the request.
*
* @return \WP_Error|\WP_REST_Response Response object on success, or WP_Error object on failure.
*/
protected function create_items( $request ) {
return new \WP_Error( 'invalid-method', sprintf( "Method '%s' not implemented. Must be overridden in subclass.", __METHOD__ ), [ 'status' => 405 ] );
}
/**
* Creates one item.
*
* @param string $id id of request item.
* @param \WP_REST_Request $request Full data about the request.
*
* @return \WP_Error|\WP_REST_Response Response object on success, or WP_Error object on failure.
*/
protected function create_item( $id, $request ) {
return new \WP_Error( 'invalid-method', sprintf( "Method '%s' not implemented. Must be overridden in subclass.", __METHOD__ ), [ 'status' => 405 ] );
}
/**
* Updates multiple items.
*
* @param \WP_REST_Request $request Full data about the request.
*
* @return \WP_Error|\WP_REST_Response Response object on success, or WP_Error object on failure.
*/
protected function update_items( $request ) {
return new \WP_Error( 'invalid-method', sprintf( "Method '%s' not implemented. Must be overridden in subclass.", __METHOD__ ), [ 'status' => 405 ] );
}
/**
* Updates one item.
*
* @param string $id id of request item.
* @param \WP_REST_Request $request Full data about the request.
*
* @return \WP_Error|\WP_REST_Response Response object on success, or WP_Error object on failure.
*/
protected function update_item( $id, $request ) {
return new \WP_Error( 'invalid-method', sprintf( "Method '%s' not implemented. Must be overridden in subclass.", __METHOD__ ), [ 'status' => 405 ] );
}
/**
* Delete multiple items.
*
* @param \WP_REST_Request $request Full data about the request.
*
* @return \WP_Error|\WP_REST_Response Response object on success, or WP_Error object on failure.
*/
protected function delete_items( $request ) {
return new \WP_Error( 'invalid-method', sprintf( "Method '%s' not implemented. Must be overridden in subclass.", __METHOD__ ), [ 'status' => 405 ] );
}
/**
* Delete one item.
*
* @param string $id id of request item.
* @param \WP_REST_Request $request Full data about the request.
*
* @return \WP_Error|\WP_REST_Response Response object on success, or WP_Error object on failure.
*/
protected function delete_item( $id, $request ) {
return new \WP_Error( 'invalid-method', sprintf( "Method '%s' not implemented. Must be overridden in subclass.", __METHOD__ ), [ 'status' => 405 ] );
}
/**
* Register the endpoint.
*
* By default: register get items route.
*/
protected function register() {
$this->register_items_route();
}
protected function register_route( $route = '', $methods = WP_REST_Server::READABLE, $args = [] ) {
if ( ! in_array( $methods, self::AVAILABLE_METHODS, true ) ) {
trigger_error( "Invalid method: '$methods'.", E_USER_ERROR ); // phpcs:ignore
}
$route = $this->get_base_route() . $route;
$this->routes [] = [
'args' => $args,
'route' => $route,
];
/**
* Determine behaviour of `base_callback()` and `get_permission_callback()`:
* For `base_callback()` which applying the action.
* Whether it's a one item request and should call `get_item_permission_callback()` or it's mutil items request and should call `get_items_permission_callback()`.
*/
$is_multi = ! empty( $args['is_multi'] );
if ( $is_multi ) {
unset( $args['is_multi'] );
}
$callback = function ( $request ) use ( $methods, $args, $is_multi ) {
return $this->base_callback( $methods, $request, $is_multi );
};
return register_rest_route( $this->controller->get_namespace(), $route, [
[
'args' => $args,
'methods' => $methods,
'callback' => $callback,
'permission_callback' => function ( $request ) {
return $this->get_permission_callback( $request );
},
],
] );
}
/**
* Register items route.
*
* @param string $methods
* @param array $args
*/
public function register_items_route( $methods = WP_REST_Server::READABLE, $args = [] ) {
$args['is_multi'] = true;
$this->register_route( '', $methods, $args );
}
public function register_item_route( $methods = WP_REST_Server::READABLE, $args = [], $route = '/' ) {
if ( ! empty( $args['id_arg_name'] ) ) {
$this->id_arg_name = $args['id_arg_name'];
unset( $args['id_arg_name'] );
}
if ( ! empty( $args['id_arg_type_regex'] ) ) {
$this->id_arg_type_regex = $args['id_arg_type_regex'];
unset( $args['id_arg_type_regex'] );
}
$args = array_merge( [
$this->id_arg_name => [
'description' => 'Unique identifier for the object.',
'type' => 'string',
'required' => true,
],
], $args );
$route .= '(?P<' . $this->id_arg_name . '>' . $this->id_arg_type_regex . ')';
$this->item_route = [
'args' => $args,
'route' => $route,
];
$this->register_route( $route, $methods, $args );
}
/**
* Base callback.
* All reset requests from the client should pass this function.
*
* @param string $methods
* @param \WP_REST_Request $request
* @param bool $is_multi
* @param array $args
*
* @return mixed|\WP_Error|\WP_HTTP_Response|\WP_REST_Response
*/
public function base_callback( $methods, $request, $is_multi = false, $args = [] ) {
if ( $request ) {
$json_params = $request->get_json_params();
if ( $json_params ) {
$request->set_body_params( $json_params );
}
}
$args = wp_parse_args( $args, [
'is_debug' => ( defined( 'WP_DEBUG' ) && WP_DEBUG ),
] );
$result = new \WP_Error( 'invalid_methods', 'route not supported.' );
$request->set_param( 'is_multi', $is_multi );
try {
switch ( $methods ) {
case WP_REST_Server::READABLE:
$result = $is_multi ? $this->get_items( $request ) : $this->get_item( $request->get_param( 'id' ), $request );
break;
case WP_REST_Server::CREATABLE:
$result = $is_multi ? $this->create_items( $request ) : $this->create_item( $request->get_param( 'id' ), $request );
break;
case WP_REST_Server::EDITABLE:
$result = $is_multi ? $this->update_items( $request ) : $this->update_item( $request->get_param( 'id' ), $request );
break;
case WP_REST_Server::DELETABLE:
$result = $is_multi ? $this->delete_items( $request ) : $this->delete_item( $request->get_param( 'id' ), $request );
break;
}
} catch ( Data_Exception $e ) {
$result = $e->to_wp_error();
} catch ( \Exception $e ) {
if ( empty( $args['is_debug'] ) ) {
$result = ( new Error_500() )->to_wp_error();
} else {
// For frontend.
$exception_mapping = [
'trace' => $e->getTrace(),
'file' => $e->getFile(),
'line' => $e->getLine(),
];
$e->debug = $exception_mapping;
$result = ( new Data_Exception( $e->getMessage(), $e->getCode(), $e ) )->to_wp_error();
}
}
return rest_ensure_response( $result );
}
/**
* Constructor.
*
* Run `$this->register()`.
*
* @param \Elementor\Data\V2\Base\Controller $controller
* @param string $route
*/
protected function __construct( Controller $controller, $route ) {
$this->controller = $controller;
$this->route = $this->ensure_slashes( $route );
$this->register();
}
}