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<?php |
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/** |
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* This file is part of the BEAR.QueryRepository package. |
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* |
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* @license http://opensource.org/licenses/MIT MIT |
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*/ |
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namespace BEAR\QueryRepository; |
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use BEAR\RepositoryModule\Annotation\Storage; |
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use BEAR\Resource\AbstractUri; |
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use BEAR\Resource\RequestInterface; |
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use BEAR\Resource\ResourceObject; |
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use Doctrine\Common\Cache\CacheProvider; |
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final class ResourceStorage implements ResourceStorageInterface |
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{ |
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const ETAG_TABLE = 'etag-table-'; |
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const ETAG_VAL = 'etag-val-'; |
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/** |
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* @var CacheProvider |
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*/ |
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private $cache; |
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/** |
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* @Storage |
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*/ |
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public function __construct(CacheProvider $cache) |
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{ |
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$this->cache = $cache; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function hasEtag(string $etag) : bool |
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{ |
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return $this->cache->contains(self::ETAG_VAL . $etag); |
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} |
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/** |
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* Update ETag |
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*/ |
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public function updateEtag(ResourceObject $ro) |
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{ |
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$varyUri = $this->getVaryUri($ro->uri); |
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$etag = self::ETAG_VAL . $ro->headers['ETag']; |
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$uri = self::ETAG_TABLE . $varyUri; |
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// delete old ETag |
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$this->deleteEtag($ro->uri); |
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// save ETag uri |
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$this->cache->save($uri, $etag); |
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// save ETag value |
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$this->cache->save($etag, $uri); |
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} |
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/** |
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* Delete etag in etag repository |
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* |
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* @param AbstractUri $uri |
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*/ |
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public function deleteEtag(AbstractUri $uri) |
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{ |
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$uri = self::ETAG_TABLE . $this->getVaryUri($uri); // invalidate etag |
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$oldEtagKey = $this->cache->fetch($uri); |
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$this->cache->delete($oldEtagKey); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function get(AbstractUri $uri) |
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{ |
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$uri = $this->getVaryUri($uri); |
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return $this->cache->fetch($uri); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function delete(AbstractUri $uri) : bool |
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{ |
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$this->deleteEtag($uri); |
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$uri = $this->getVaryUri($uri); |
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return $this->cache->delete($uri); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function saveValue(ResourceObject $ro, int $lifeTime) |
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{ |
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$body = $this->evaluateBody($ro->body); |
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$uri = $this->getVaryUri($ro->uri); |
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$val = [$ro->uri, $ro->code, $ro->headers, $body, null]; |
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return $this->cache->save($uri, $val, $lifeTime); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function saveView(ResourceObject $ro, int $lifeTime) |
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{ |
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$body = $this->evaluateBody($ro->body); |
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$uri = $this->getVaryUri($ro->uri); |
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$val = [$ro->uri, $ro->code, $ro->headers, $body, $ro->view]; |
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return $this->cache->save($uri, $val, $lifeTime); |
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} |
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private function evaluateBody($body) |
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{ |
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if (! \is_array($body)) { |
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return $body; |
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} |
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foreach ($body as &$item) { |
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if ($item instanceof RequestInterface) { |
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$item = ($item)(); |
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} |
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} |
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return $body; |
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} |
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private function getVaryUri(AbstractUri $uri) : string |
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{ |
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if (! isset($_SERVER['X_VARY'])) { |
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return (string) $uri; |
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} |
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$varys = \explode(',', $_SERVER['X_VARY']); |
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$varyId = ''; |
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foreach ($varys as $vary) { |
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$phpVaryKey = \sprintf('X_%s', \strtoupper($vary)); |
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if (isset($_SERVER[$phpVaryKey])) { |
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$varyId .= $_SERVER[$phpVaryKey]; |
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} |
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} |
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return (string) $uri . $varyId; |
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} |
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} |
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bearsunday /
BEAR.QueryRepository
