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<?php |
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namespace TreeHouse\Feeder\Transport; |
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use GuzzleHttp\Client; |
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use GuzzleHttp\ClientInterface; |
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use GuzzleHttp\Exception\RequestException; |
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use GuzzleHttp\RequestOptions; |
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use Psr\Http\Message\ResponseInterface; |
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use TreeHouse\Feeder\Event\FetchProgressEvent; |
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use TreeHouse\Feeder\Exception\EmptyResponseException; |
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use TreeHouse\Feeder\Exception\TransportException; |
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use TreeHouse\Feeder\FeedEvents; |
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class HttpTransport extends AbstractTransport implements ProgressAwareInterface |
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{ |
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/** |
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* @var ClientInterface |
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*/ |
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protected $client; |
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/** |
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* @var int |
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*/ |
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protected $size; |
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/** |
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* @var \DateTime |
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*/ |
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protected $lastModified; |
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/** |
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* @param string $url |
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* @param string|null $user |
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* @param string|null $pass |
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* |
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* @return HttpTransport |
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*/ |
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public static function create($url, $user = null, $pass = null) |
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{ |
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$client = new Client([ |
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'headers' => [ |
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'User-Agent' => static::getDefaultUserAgent(), |
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], |
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]); |
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$conn = new Connection([ |
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'url' => $url, |
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'user' => $user, |
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'pass' => $pass, |
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]); |
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$transport = new static($conn); |
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$transport->setClient($client); |
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return $transport; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function __toString() |
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{ |
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return $this->getUrl(); |
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} |
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/** |
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* @throws \LogicException When url is not defined |
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* |
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* @return string |
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*/ |
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public function getUrl() |
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{ |
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if (!isset($this->connection['url'])) { |
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throw new \LogicException('No url defined'); |
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} |
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return $this->connection['url']; |
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} |
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/** |
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* @param string $url |
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*/ |
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public function setUrl($url) |
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{ |
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$this->connection['url'] = $url; |
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} |
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/** |
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* @return string|null |
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*/ |
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public function getUser() |
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{ |
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return isset($this->connection['user']) ? $this->connection['user'] : null; |
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} |
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/** |
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* @return string|null |
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*/ |
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public function getPass() |
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{ |
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return isset($this->connection['pass']) ? $this->connection['pass'] : null; |
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} |
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/** |
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* @param ClientInterface $client |
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*/ |
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public function setClient(ClientInterface $client) |
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{ |
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$this->client = $client; |
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} |
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/** |
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* @return ClientInterface |
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*/ |
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public function getClient() |
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{ |
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return $this->client; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getLastModifiedDate() |
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{ |
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return $this->lastModified; |
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} |
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/** |
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* @return int|null |
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*/ |
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public function getSize() |
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{ |
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return $this->size; |
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} |
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/** |
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* @param ResponseInterface $response |
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*/ |
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public function onHeaders(ResponseInterface $response) |
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{ |
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// set the modified date if we got it in the response |
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if (!empty($lastModified = $response->getHeader('Last-Modified'))) { |
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$this->lastModified = new \DateTime(reset($lastModified)); |
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} |
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} |
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/** |
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* @param int $downloadSize |
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* @param int $downloaded |
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*/ |
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public function onProgress($downloadSize, $downloaded) |
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{ |
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$this->size = $downloadSize; |
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$progressEvent = new FetchProgressEvent($downloaded, $downloadSize); |
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$this->eventDispatcher->dispatch(FeedEvents::FETCH_PROGRESS, $progressEvent); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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protected function doFetch($destination) |
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{ |
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if (!$this->client) { |
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throw new \LogicException('No client set to use for downloading'); |
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} |
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$options = [ |
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RequestOptions::SINK => $destination, |
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RequestOptions::ON_HEADERS => [$this, 'onHeaders'], |
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RequestOptions::PROGRESS => [$this, 'onProgress'], |
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]; |
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if ($user = $this->getUser()) { |
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$options['auth'] = [$user, $this->getPass()]; |
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} |
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try { |
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$response = $this->client->request('GET', $this->getUrl(), $options); |
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if ($response->getBody()->getSize() === 0) { |
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throw new EmptyResponseException($response); |
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} |
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} catch (RequestException $e) { |
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throw new TransportException(sprintf('Could not download feed: %s', $e->getMessage()), null, $e); |
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} |
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} |
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/** |
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* @inheritdoc |
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*/ |
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protected function isFresh($destination, \DateTime $maxAge = null) |
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{ |
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return false; |
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} |
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} |
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treehouselabs /
feeder
