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<?php
/**
* Class for Background of Media Library images.
*
* @link https://ewww.io
* @package EWWW_Image_Optimizer
*/
namespace EWWW;
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Handles an async request used to test the viability of using async requests
* elsewhere.
*
* During a plugin update, an async request is sent with a specific string
* value to validate that nothing is blocking admin-ajax.php requests from
* the server to itself. Once verified, full background/parallel processing
* can be used.
*
* @see EWWW\Async_Request
*/
class Async_Test_Request extends Async_Request {
/**
* The action name used to trigger this class extension.
*
* @access protected
* @var string $action
*/
protected $action = 'ewwwio_test_async';
/**
* Handles the test async request.
*
* Called via a POST request to verify that nothing is blocking or altering requests from the server to itself.
*/
protected function handle() {
session_write_close();
ewwwio_debug_message( '<b>' . __METHOD__ . '()</b>' );
check_ajax_referer( $this->identifier, 'nonce' );
if ( empty( $_POST['ewwwio_test_verify'] ) ) {
return;
}
$item = sanitize_key( $_POST['ewwwio_test_verify'] );
ewwwio_debug_message( "testing async handling, received $item" );
if ( ewww_image_optimizer_detect_wpsf_location_lock() ) {
ewwwio_debug_message( 'detected location lock, not enabling background opt' );
return;
}
if ( '949c34123cf2a4e4ce2f985135830df4a1b2adc24905f53d2fd3f5df5b162932' !== $item ) {
ewwwio_debug_message( 'wrong item received, not enabling background opt' );
return;
}
ewwwio_debug_message( 'setting background option to true' );
$success = ewww_image_optimizer_set_option( 'ewww_image_optimizer_background_optimization', true );
if ( $success ) {
ewwwio_debug_message( 'hurrah, async enabled!' );
}
}
}