private function call_remote_api()
{
// only check if the failed transient is not set (or if it's expired)
if (get_transient($this->request_failed_transient_key) !== false) {
return false;
}
// start request process
global $wp_version;
// set a transient to prevent failed update checks on every page load
// this transient will be removed if a request succeeds
set_transient($this->request_failed_transient_key, 'failed', 10800);
// setup api parameters
$api_params = array('edd_action' => 'get_version', 'license' => $this->license_manager->get_license_key(), 'item_name' => $this->product->get_item_name(), 'wp_version' => $wp_version, 'item_version' => $this->product->get_version(), 'url' => home_url(), 'slug' => $this->product->get_slug());
// Add product ID from product if it is implemented.
if (method_exists($this->product, 'get_product_id')) {
$product_id = $this->product->get_product_id();
if ($product_id > 0) {
$api_params['product_id'] = $this->product->get_product_id();
}
}
// setup request parameters
$request_params = array('method' => 'POST', 'body' => $api_params);
require_once dirname(__FILE__) . '/class-api-request.php';
$request = new Yoast_API_Request($this->product->get_api_url(), $request_params);
if ($request->is_valid() !== true) {
// show error message
$this->error_message = $request->get_error_message();
add_action('admin_notices', array($this, 'show_update_error'));
return false;
}
// request succeeded, delete transient indicating a request failed
delete_transient($this->request_failed_transient_key);
// decode response
$response = $request->get_response();
// check if response returned that a given site was inactive
if (isset($response->license_check) && !empty($response->license_check) && $response->license_check != 'valid') {
// deactivate local license
$this->license_manager->set_license_status('invalid');
// show notice to let the user know we deactivated his/her license
$this->error_message = __("This site has not been activated properly on yoast.com and thus cannot check for future updates. Please activate your site with a valid license key.", $this->product->get_text_domain());
add_action('admin_notices', array($this, 'show_update_error'));
}
$response->sections = maybe_unserialize($response->sections);
// store response
set_transient($this->response_transient_key, $response, 10800);
return $response;
}