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<?php |
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namespace CybozuHttp\Subscriber\Cache; |
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use GuzzleHttp\Message\RequestInterface; |
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use GuzzleHttp\Message\ResponseInterface; |
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use GuzzleHttp\Message\Response; |
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use GuzzleHttp\Stream; |
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use Doctrine\Common\Cache\Cache; |
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/** |
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* @author ochi51 <[email protected]> |
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*/ |
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class CacheStorage |
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{ |
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/** @var int Default cache TTL */ |
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private $defaultTtl; |
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/** @var Cache */ |
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private $cache; |
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/** |
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* @param Cache $cache Cache backend. |
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* @param int $defaultTtl |
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*/ |
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public function __construct(Cache $cache, $defaultTtl = 0) |
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{ |
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$this->cache = $cache; |
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$this->defaultTtl = $defaultTtl; |
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} |
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public function cache(RequestInterface $request, ResponseInterface $response) |
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{ |
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$ttl = $this->defaultTtl; |
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$key = $this->getCacheKey($request); |
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// Persist the response body if needed |
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if ($response->getStatusCode() === 200 |
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&& $response->getBody() |
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&& $response->getBody()->getSize() > 0) { |
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$this->cache->save($key, (string)$response->getBody(), $ttl); |
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} |
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} |
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public function delete(RequestInterface $request) |
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{ |
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$key = $this->getCacheKey($request); |
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$this->cache->delete($key); |
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} |
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public function fetch(RequestInterface $request) |
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{ |
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$key = $this->getCacheKey($request); |
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if (!($body = $this->cache->fetch($key))) { |
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return false; |
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} |
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$response = new Response(200); |
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$response->setBody(Stream\Utils::create($body)); |
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return $response; |
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} |
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/** |
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* Hash a request URL into a string that returns cache metadata |
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* |
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* @param RequestInterface $request |
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* |
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* @return string |
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*/ |
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private function getCacheKey(RequestInterface $request) |
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{ |
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return $request->getMethod() |
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. ' ' |
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. $request->getUrl() |
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. ' ' |
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. (string)$request->getBody(); |
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} |
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} |
ochi51 /
cybozu-http
