/**
* @param CacheStrategyInterface $cache
* @param RequestInterface $request
* @param ResponseInterface $response
* @param bool $update cache
* @return ResponseInterface
*/
protected static function addToCache(CacheStrategyInterface $cache, RequestInterface $request, ResponseInterface $response, $update = false)
{
// If the body is not seekable, we have to replace it by a seekable one
if (!$response->getBody()->isSeekable()) {
$response = $response->withBody(\GuzzleHttp\Psr7\stream_for($response->getBody()->getContents()));
}
if ($update) {
$cache->update($request, $response);
} else {
$cache->cache($request, $response);
}
return $response;
}
/**
* @param RequestInterface $request
* @param CacheStrategyInterface $cacheStorage
* @param CacheEntry $cacheEntry
*
* @return bool if added
*/
protected function addReValidationRequest(RequestInterface $request, CacheStrategyInterface &$cacheStorage, CacheEntry $cacheEntry)
{
// Add the promise for revalidate
if ($this->client !== null) {
/** @var RequestInterface $request */
$request = $request->withHeader(self::HEADER_RE_VALIDATION, '1');
$this->waitingRevalidate[] = $this->client->sendAsync($request)->then(function (ResponseInterface $response) use($request, &$cacheStorage, $cacheEntry) {
if ($response->getStatusCode() == 304) {
// Not modified => cache entry is re-validate
/** @var ResponseInterface $response */
$response = $response->withStatus($cacheEntry->getResponse()->getStatusCode());
$response = $response->withBody($cacheEntry->getResponse()->getBody());
}
$cacheStorage->cache($request, $response);
});
return true;
}
return false;
}
