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<?php if ( ! defined( 'ABSPATH' ) ) exit;
use NinjaForms\Includes\Admin\RestControllerSafeList;
/**
* A controller extensions for mapping REST requests to an admin-ajax action.
*/
abstract class NF_AJAX_REST_Controller extends NF_Abstracts_Controller
{
/**
* The name of the admin-ajax action.
* @var string
*/
protected $action;
/**
* Setup admin-ajax to access the endpoint router.
*/
public function __construct()
{
if( $this->action ) {
/**
* The function that handles these actions are located in the
* classes that extend this class. The action is usually of the type 'get', 'post', or 'delete'
* These files inlcude:
* NF_AJAX_REST_BatchProcess
* NF_AJAX_REST_Forms
* NF_AJAX_REST_NewFormTemplates
* NF_AJAX_REST_RequiredUpdate
*
* And any other class that extends this class(NF_AJAX_REST_Controller)
*/
add_action('wp_ajax_' . $this->action, array($this, 'route'));
}
}
/**
* Map admin-ajax requests to the corresponding method callback.
*/
public function route()
{
register_shutdown_function( array( $this, 'shutdown' ) );
$method = strtolower( $_SERVER['REQUEST_METHOD'] );
/*
* Request Method Override
* Allows for a POST request to function as another Request Method
* by passing a `method_override` value as a request parameter.
* For example, some servers do not support the DELETE request method.
*/
if( 'post' == $method and isset( $_REQUEST[ 'method_override' ] ) ){
$method = sanitize_text_field( $_REQUEST[ 'method_override' ] );
if(!RestControllerSafeList::isClassMethodAllowed(static::class,$method)){
$this->_errors[] = esc_html__( 'Requested method override is not allowed', 'ninja-forms' );
$this->_respond();
}
}
if( ! method_exists( $this, $method ) ){
$this->_errors[] = esc_html__( 'Endpoint does not exist.', 'ninja-forms' );
$this->_respond();
}
/**
* This call get the $_REQUEST info for the call(post, get, etc.)
* being called.
*/
$request_data = $this->get_request_data();
try {
$data = $this->$method($request_data);
$this->_respond( $data );
} catch( Exception $e ) {
$this->_errors[] = $e->getMessage();
}
$this->_respond();
}
/**
* [OVERRIDE THIS] Get sanitized request data for use in method callbacks.
* @return array
*/
protected function get_request_data()
{
// This section intentionally left blank.
/*
* [Example] FORM ID
*/
// if( isset( $_REQUEST[ 'form_id' ] ) && $_REQUEST[ 'form_id' ] ){
// $request_data[ 'form_id' ] = absint( $_REQUEST[ 'form_id' ] );
// }
return array();
}
/**
* Returns debugging data when a fatal error is triggered.
*/
public function shutdown()
{
$error = error_get_last();
if( $error !== NULL && in_array( $error[ 'type' ], array( E_ERROR, E_CORE_ERROR, E_COMPILE_ERROR, E_USER_ERROR ) ) ) {
$this->_errors[ 'form' ][ 'last' ] = esc_html__( 'The server encountered an error during processing.', 'ninja-forms' );
if( current_user_can( 'manage_options' ) && isset( $error[ 'message' ] ) ){
$this->_errors[ 'form' ][ 'last_admin' ] = '<pre>' . $error[ 'message' ] . '</pre>';
}
$this->_errors[ 'last' ] = $error;
$this->_respond();
}
}
}