first commit

wp-content/plugins/sitepress-multilingual-cms/classes/utils/wpml-wp-cron-check.php

@@ -0,0 +1,47 @@
+<?php
+
+class WPML_WP_Cron_Check {
+
+	const TRANSIENT_NAME = 'wpml_cron_check';
+
+	/** @var WPML_PHP_Functions $php_functions */
+	private $php_functions;
+
+	public function __construct( WPML_PHP_Functions $php_functions ) {
+		$this->php_functions = $php_functions;
+	}
+
+	/** @return bool */
+	public function verify() {
+		if ( $this->is_doing_cron() ) {
+			return true;
+		}
+
+		if ( $this->php_functions->constant( 'DISABLE_WP_CRON' ) ) {
+			return false;
+		}
+
+		$is_on_from_transient = get_transient( self::TRANSIENT_NAME );
+
+		if ( false !== $is_on_from_transient ) {
+			return (bool) $is_on_from_transient;
+		}
+
+		$is_on   = 1;
+		$request = wp_remote_get( site_url( 'wp-cron.php' ) );
+
+		if ( is_wp_error( $request ) ) {
+			$is_on = 0;
+		} elseif ( $request['response']['code'] !== 200 ) {
+			$is_on = 0;
+		}
+
+		set_transient( self::TRANSIENT_NAME, $is_on, 12 * HOUR_IN_SECONDS );
+		return (bool) $is_on;
+	}
+
+	/** @return bool */
+	public function is_doing_cron() {
+		return (bool) $this->php_functions->constant( 'DOING_CRON' );
+	}
+}