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<?php |
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/* |
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* This file is part of the FOSHttpCache package. |
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* |
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* (c) FriendsOfSymfony <http://friendsofsymfony.github.com/> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace FOS\HttpCache\ProxyClient; |
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use FOS\HttpCache\ProxyClient\Http\HttpAdapter; |
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use Http\Client\HttpAsyncClient; |
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use Http\Discovery\HttpAsyncClientDiscovery; |
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use Http\Discovery\MessageFactoryDiscovery; |
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use Http\Discovery\UriFactoryDiscovery; |
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use Http\Message\MessageFactory; |
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use Http\Message\UriFactory; |
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use Psr\Http\Message\UriInterface; |
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use Symfony\Component\OptionsResolver\OptionsResolver; |
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/** |
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* Abstract HTTP based caching proxy client. |
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* |
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* @author David de Boer <[email protected]> |
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*/ |
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abstract class AbstractProxyClient implements ProxyClientInterface |
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{ |
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/** |
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* HTTP client adapter. |
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* |
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* @var HttpAdapter |
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*/ |
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protected $httpAdapter; |
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/** |
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* @var MessageFactory |
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*/ |
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protected $messageFactory; |
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/** |
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* The options configured in the constructor argument or default values. |
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* |
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* @var array The resolved options. |
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*/ |
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protected $options; |
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/** |
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* Constructor |
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* |
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* Supported options: |
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* |
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* - base_uri Default application hostname, optionally including base URL, |
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* for purge and refresh requests (optional). This is required if you |
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* purge and refresh paths instead of absolute URLs. |
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* |
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* @param array $servers Caching proxy server hostnames or IP |
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* addresses, including port if not port 80. |
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* E.g. ['127.0.0.1:6081'] |
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* @param array $options List of options for the client. |
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* @param HttpAsyncClient|null $httpClient Client capable of sending HTTP requests. If no |
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* client is supplied, a default one is created. |
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* @param MessageFactory|null $messageFactory Factory for PSR-7 messages. If none supplied, |
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* a default one is created. |
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* @param UriFactory|null $uriFactory Factory for PSR-7 URIs. If not specified, a |
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* default one is created. |
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*/ |
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public function __construct( |
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array $servers, |
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array $options = [], |
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HttpAsyncClient $httpClient = null, |
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MessageFactory $messageFactory = null, |
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UriFactory $uriFactory = null |
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) { |
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if ((!$httpClient || !$messageFactory || !$uriFactory) && !class_exists('Http\Discovery\HttpAsyncClientDiscovery')) { |
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throw new \LogicException('Either specify the client and the message and uri factories or include php-http/discovery in your project'); |
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} |
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if (!$httpClient) { |
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$httpClient = HttpAsyncClientDiscovery::find(); |
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} |
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if (!$uriFactory) { |
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$uriFactory = UriFactoryDiscovery::find(); |
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} |
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$this->options = $this->getDefaultOptions()->resolve($options); |
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$this->httpAdapter = new HttpAdapter($servers, $this->options['base_uri'], $httpClient, $uriFactory); |
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$this->messageFactory = $messageFactory ?: MessageFactoryDiscovery::find(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function flush() |
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{ |
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return $this->httpAdapter->flush(); |
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} |
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/** |
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* Get options resolver with default settings. |
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* |
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* @return OptionsResolver |
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*/ |
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protected function getDefaultOptions() |
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{ |
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$resolver = new OptionsResolver(); |
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$resolver->setDefaults(['base_uri' => null]); |
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return $resolver; |
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} |
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/** |
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* Create a request and queue it with the HttpAdapter. |
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* |
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* @param string $method |
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* @param string|UriInterface $url |
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* @param array $headers |
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*/ |
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protected function queueRequest($method, $url, array $headers) |
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{ |
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$this->httpAdapter->invalidate( |
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$this->messageFactory->createRequest($method, $url, $headers) |
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); |
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} |
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/** |
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* Make sure that the tags are valid. |
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* |
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* Reusable function for proxy clients. |
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* Escapes `,` and `\n` (newline) characters. |
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* |
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* @param array $tags The tags to escape. |
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* |
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* @return array Sane tags. |
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*/ |
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protected function escapeTags(array $tags) |
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{ |
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array_walk($tags, function (&$tag) { |
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$tag = str_replace([',', "\n"], ['_', '_'], $tag); |
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}); |
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return $tags; |
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} |
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} |
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FriendsOfSymfony /
FOSHttpCache
