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wp-async-request.php (2949B)

      1 <?php
      2 namespace Elementor\Core\Base\BackgroundProcess;
      3 
      4 if ( ! defined( 'ABSPATH' ) ) {
      5 	exit;
      6 }
      7 
      8 /**
      9  * https://github.com/A5hleyRich/wp-background-processing GPL v2.0
     10  *
     11  * WP Async Request
     12  *
     13  * @package WP-Background-Processing
     14  */
     15 
     16 /**
     17  * Abstract WP_Async_Request class.
     18  *
     19  * @abstract
     20  */
     21 abstract class WP_Async_Request {
     22 
     23 	/**
     24 	 * Prefix
     25 	 *
     26 	 * (default value: 'wp')
     27 	 *
     28 	 * @var string
     29 	 * @access protected
     30 	 */
     31 	protected $prefix = 'wp';
     32 
     33 	/**
     34 	 * Action
     35 	 *
     36 	 * (default value: 'async_request')
     37 	 *
     38 	 * @var string
     39 	 * @access protected
     40 	 */
     41 	protected $action = 'async_request';
     42 
     43 	/**
     44 	 * Identifier
     45 	 *
     46 	 * @var mixed
     47 	 * @access protected
     48 	 */
     49 	protected $identifier;
     50 
     51 	/**
     52 	 * Data
     53 	 *
     54 	 * (default value: array())
     55 	 *
     56 	 * @var array
     57 	 * @access protected
     58 	 */
     59 	protected $data = array();
     60 
     61 	/**
     62 	 * Initiate new async request
     63 	 */
     64 	public function __construct() {
     65 		$this->identifier = $this->prefix . '_' . $this->action;
     66 
     67 		add_action( 'wp_ajax_' . $this->identifier, array( $this, 'maybe_handle' ) );
     68 		add_action( 'wp_ajax_nopriv_' . $this->identifier, array( $this, 'maybe_handle' ) );
     69 	}
     70 
     71 	/**
     72 	 * Set data used during the request
     73 	 *
     74 	 * @param array $data Data.
     75 	 *
     76 	 * @return $this
     77 	 */
     78 	public function data( $data ) {
     79 		$this->data = $data;
     80 
     81 		return $this;
     82 	}
     83 
     84 	/**
     85 	 * Dispatch the async request
     86 	 *
     87 	 * @return array|\WP_Error
     88 	 */
     89 	public function dispatch() {
     90 		$url  = add_query_arg( $this->get_query_args(), $this->get_query_url() );
     91 		$args = $this->get_post_args();
     92 
     93 		return wp_remote_post( esc_url_raw( $url ), $args );
     94 	}
     95 
     96 	/**
     97 	 * Get query args
     98 	 *
     99 	 * @return array
    100 	 */
    101 	protected function get_query_args() {
    102 		if ( property_exists( $this, 'query_args' ) ) {
    103 			return $this->query_args;
    104 		}
    105 
    106 		return array(
    107 			'action' => $this->identifier,
    108 			'nonce'  => wp_create_nonce( $this->identifier ),
    109 		);
    110 	}
    111 
    112 	/**
    113 	 * Get query URL
    114 	 *
    115 	 * @return string
    116 	 */
    117 	protected function get_query_url() {
    118 		if ( property_exists( $this, 'query_url' ) ) {
    119 			return $this->query_url;
    120 		}
    121 
    122 		return admin_url( 'admin-ajax.php' );
    123 	}
    124 
    125 	/**
    126 	 * Get post args
    127 	 *
    128 	 * @return array
    129 	 */
    130 	protected function get_post_args() {
    131 		if ( property_exists( $this, 'post_args' ) ) {
    132 			return $this->post_args;
    133 		}
    134 
    135 		return array(
    136 			'timeout'   => 0.01,
    137 			'blocking'  => false,
    138 			'body'      => $this->data,
    139 			'cookies'   => $_COOKIE,
    140 			/** This filter is documented in wp-includes/class-wp-http-streams.php */
    141 			'sslverify' => apply_filters( 'https_local_ssl_verify', false ),
    142 		);
    143 	}
    144 
    145 	/**
    146 	 * Maybe handle
    147 	 *
    148 	 * Check for correct nonce and pass to handler.
    149 	 */
    150 	public function maybe_handle() {
    151 		// Don't lock up other requests while processing
    152 		session_write_close();
    153 
    154 		check_ajax_referer( $this->identifier, 'nonce' );
    155 
    156 		$this->handle();
    157 
    158 		wp_die();
    159 	}
    160 
    161 	/**
    162 	 * Handle
    163 	 *
    164 	 * Override this method to perform any actions required
    165 	 * during the async request.
    166 	 */
    167 	abstract protected function handle();
    168 
    169 }