/** * Extracts the WidgetContext from the given $httpRequest. * If the request contains an argument "__widgetId" the context is fetched from the session (AjaxWidgetContextHolder). * Otherwise the argument "__widgetContext" is expected to contain the serialized WidgetContext (protected by a HMAC suffix) * * @param Request $httpRequest * @return WidgetContext */ protected function extractWidgetContext(Request $httpRequest) { if ($httpRequest->hasArgument('__widgetId')) { return $this->ajaxWidgetContextHolder->get($httpRequest->getArgument('__widgetId')); } elseif ($httpRequest->hasArgument('__widgetContext')) { $serializedWidgetContextWithHmac = $httpRequest->getArgument('__widgetContext'); $serializedWidgetContext = $this->hashService->validateAndStripHmac($serializedWidgetContextWithHmac); return unserialize(base64_decode($serializedWidgetContext)); } return null; }