<?php
if (!defined('ABSPATH')) exit;
if ( ! class_exists( 'WP_Async_Request' ) ) {
abstract class WP_Async_Request {
protected $prefix = 'wp';
protected $action = 'async_request';
protected $identifier;
protected $data = array();
public function __construct() {
$this->identifier = $this->prefix . '_' . $this->action;
add_action( 'wp_ajax_' . $this->identifier, array( $this, 'maybe_handle' ) );
add_action( 'wp_ajax_nopriv_' . $this->identifier, array( $this, 'maybe_handle' ) );
}
public function data( $data ) {
$this->data = $data;
return $this;
}
public function dispatch() {
$url = add_query_arg( $this->get_query_args(), $this->get_query_url() );
$args = $this->get_post_args();
return wp_remote_post( esc_url_raw( $url ), $args );
}
protected function get_query_args() {
if ( property_exists( $this, 'query_args' ) ) {
return $this->query_args;
}
$args = array(
'action' => $this->identifier,
'nonce' => wp_create_nonce( $this->identifier ),
);
return apply_filters( $this->identifier . '_query_args', $args );
}
protected function get_query_url() {
if ( property_exists( $this, 'query_url' ) ) {
return $this->query_url;
}
$url = admin_url( 'admin-ajax.php' );
return apply_filters( $this->identifier . '_query_url', $url );
}
protected function get_post_args() {
if ( property_exists( $this, 'post_args' ) ) {
return $this->post_args;
}
$args = array(
'timeout' => 0.01,
'blocking' => false,
'body' => $this->data,
'cookies' => $_COOKIE,
'sslverify' => apply_filters( 'https_local_ssl_verify', false ),
);
return apply_filters( $this->identifier . '_post_args', $args );
}
public function maybe_handle() {
// Don't lock up other requests while processing
session_write_close();
check_ajax_referer( $this->identifier, 'nonce' );
$this->handle();
wp_die();
}
abstract protected function handle();
}
}