/**
* 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;
}
