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<?php |
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/* |
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* This file is part of the Veslo project <https://github.com/symfony-doge/veslo>. |
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* |
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* (C) 2019 Pavel Petrov <[email protected]>. |
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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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* @license https://opensource.org/licenses/GPL-3.0 GPL-3.0 |
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*/ |
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declare(strict_types=1); |
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namespace Veslo\AppBundle\Event\Listener\Http\Proxy; |
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use Psr\Log\LoggerInterface; |
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use Veslo\AppBundle\Cache\CacherInterface; |
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use Veslo\AppBundle\Event\Http\Client\ConnectFailedEvent; |
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use Veslo\AppBundle\Http\ProxyAwareClientInterface; |
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/** |
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* Calls a cache invalidator to reset a cached proxy list |
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*/ |
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class CacheInvalidationListener |
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{ |
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/** |
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* Adds a log record about cached proxy list invalidation |
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* |
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* @var LoggerInterface |
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*/ |
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private $logger; |
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/** |
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* Invalidates a cache instance |
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* |
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* @var CacherInterface |
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*/ |
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private $cacheInvalidator; |
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/** |
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* CacheInvalidationListener constructor. |
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* |
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* @param LoggerInterface $logger Adds a log record about cached proxy list invalidation |
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* @param CacherInterface $cacheInvalidator Invalidates a cache instance |
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*/ |
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public function __construct(LoggerInterface $logger, CacherInterface $cacheInvalidator) |
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{ |
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$this->logger = $logger; |
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$this->cacheInvalidator = $cacheInvalidator; |
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} |
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/** |
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* Invalidates a proxy list cache if client was unable to establish a connection to website |
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* |
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* @param ConnectFailedEvent $event Propagated whenever a HTTP client failed to establish connection to website |
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* |
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* @return void |
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*/ |
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public function onConnectFailed(ConnectFailedEvent $event): void |
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{ |
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$httpClient = $event->getClient(); |
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if (! $httpClient instanceof ProxyAwareClientInterface || ! $httpClient->isProxyEnabled()) { |
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return; |
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} |
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$connectException = $event->getConnectException(); |
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$context = $connectException->getHandlerContext(); |
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if ($this->cacheInvalidator->invalidate()) { |
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$this->logger->info('Proxy list cache has been invalidated due to connection problem.', $context); |
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return; |
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} |
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$this->logger->error('Unable to invalidate a proxy list cache.'); |
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} |
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} |
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symfony-doge /
veslo
