public function requestUpdate($queryArgs = array())
{
//Query args to append to the URL. Themes can add their own by using a filter callback (see addQueryArgFilter()).
$queryArgs['installed_version'] = $this->getInstalledVersion();
$queryArgs = apply_filters(self::$filterPrefix . 'query_args-' . $this->theme, $queryArgs);
//Various options for the wp_remote_get() call. Themes can filter these, too.
$options = array('timeout' => 20);
$options = apply_filters(self::$filterPrefix . 'options-' . $this->theme, $options);
$url = $this->metadataUrl;
if (!empty($queryArgs)) {
$url = add_query_arg($queryArgs, $url);
}
//Send the request.
$result = wp_remote_get($url, $options);
//Try to parse the response
$themeUpdate = null;
$code = wp_remote_retrieve_response_code($result);
$body = wp_remote_retrieve_body($result);
if ($code == 200 && !empty($body)) {
$themeUpdate = ThemeUpdate::fromJson($body);
//The update should be newer than the currently installed version.
if ($themeUpdate != null && version_compare($themeUpdate->version, $this->getInstalledVersion(), '<=')) {
$themeUpdate = null;
}
}
$themeUpdate = apply_filters(self::$filterPrefix . 'result-' . $this->theme, $themeUpdate, $result);
return $themeUpdate;
}
/**
* Insert the latest update (if any) into the update list maintained by WP.
*
* @param StdClass $updates Update list.
* @return array Modified update list.
*/
public function injectUpdate($updates)
{
$state = get_option($this->optionName);
//Is there an update to insert?
if (!empty($state) && isset($state->update) && !empty($state->update)) {
$update = $state->update;
if (is_string($state->update)) {
$update = ThemeUpdate::fromJson($state->update);
}
$updates->response[$this->theme] = $update->toWpFormat();
}
return $updates;
}
