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<?php |
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/** |
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* Spiral: PSR7 aware cURL client (https://github.com/juliangut/spiral) |
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* |
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* @link https://github.com/juliangut/spiral for the canonical source repository |
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* |
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* @license https://raw.githubusercontent.com/juliangut/spiral/master/LICENSE |
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*/ |
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namespace Jgut\Spiral; |
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use Jgut\Spiral\Exception\TransportException; |
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use Jgut\Spiral\Transport\Curl; |
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use Psr\Http\Message\RequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Zend\Diactoros\Stream; |
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/** |
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* PSR7 aware client. |
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*/ |
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class Client |
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{ |
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/** |
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* cURL transport handler. |
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* |
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* @var \Jgut\Spiral\Transport |
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*/ |
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private $transport; |
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/** |
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* @param \Jgut\Spiral\Transport|null $transport |
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*/ |
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public function __construct(Transport $transport = null) |
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{ |
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$this->transport = $transport; |
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} |
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/** |
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* Set transport handler. |
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* |
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* @param \Jgut\Spiral\Transport $transport |
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*/ |
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public function setTransport(Transport $transport) |
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{ |
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$this->transport = $transport; |
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} |
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/** |
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* Retrieve transport handler. |
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* |
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* @return \Jgut\Spiral\Transport |
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*/ |
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public function getTransport() |
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{ |
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if (!$this->transport instanceof Transport) { |
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$this->transport = Curl::createFromDefaults(); |
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} |
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return $this->transport; |
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} |
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/** |
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* Run PSR7 request. |
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* |
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* @param \Psr\Http\Message\RequestInterface $request |
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* @param \Psr\Http\Message\ResponseInterface $response |
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* @param array $vars |
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* @param array $flags |
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* |
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* @throws \Jgut\Spiral\Exception\TransportException |
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* |
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* @return \Psr\Http\Message\ResponseInterface |
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*/ |
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public function request( |
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RequestInterface $request, |
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ResponseInterface $response, |
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array $vars = [], |
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array $flags = [] |
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) { |
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$transport = $this->getTransport(); |
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try { |
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$transferResponse = $transport->request( |
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$request->getMethod(), |
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(string) $request->getUri(), |
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$request->getHeaders(), |
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$vars, |
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$flags |
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); |
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} catch (TransportException $exception) { |
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$transport->close(); |
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// Bubble exception |
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throw $exception; |
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} |
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$transferInfo = $transport->responseInfo(); |
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$transport->close(); |
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$responseHeaders = ''; |
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$responseContent = $transferResponse; |
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if (isset($transferInfo['header_size']) && $transferInfo['header_size']) { |
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$headersSize = $transferInfo['header_size']; |
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$responseHeaders = rtrim(substr($transferResponse, 0, $headersSize)); |
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$responseContent = (strlen($transferResponse) === $headersSize) |
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? '' |
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: substr($transferResponse, $headersSize); |
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} |
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// Split headers blocks |
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$responseHeaders = preg_split('/(\\r?\\n){2}/', $responseHeaders); |
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$responseHeaders = $this->getTransferHeaders( |
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preg_split('/\\r?\\n/', array_pop($responseHeaders)), |
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$responseContent, |
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$transferInfo |
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); |
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return $this->populateResponse($response, $responseHeaders, $responseContent); |
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} |
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/** |
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* Get response headers based on transfer information. |
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* |
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* @param array $transferHeaders |
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* @param string $transferContent |
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* @param array $transferInfo |
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* |
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* @return array |
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*/ |
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protected function getTransferHeaders(array $transferHeaders, $transferContent, array $transferInfo) |
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{ |
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$responseHeaders = [ |
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'Status' => $transferInfo['http_code'], |
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'Content-Type' => $transferInfo['content_type'], |
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'Content-Length' => strlen($transferContent), |
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]; |
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foreach ($transferHeaders as $header) { |
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if (preg_match('/^HTTP\/(1\.\d) +([1-5][0-9]{2}) +.+$/', $header, $matches)) { |
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$responseHeaders['Protocol-Version'] = $matches[1]; |
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$responseHeaders['Status'] = $matches[2]; |
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} elseif (strpos($header, ':') !== false) { |
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list($name, $value) = explode(':', $header, 2); |
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$responseHeaders[$name] = trim($value); |
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} |
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} |
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return $responseHeaders; |
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} |
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/** |
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* Set response headers and content. |
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* |
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* @param \Psr\Http\Message\ResponseInterface $response |
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* @param array $headers |
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* @param string $content |
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* |
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* @return \Psr\Http\Message\ResponseInterface |
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*/ |
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protected function populateResponse(ResponseInterface $response, array $headers, $content) |
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{ |
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if (array_key_exists('Protocol-Version', $headers)) { |
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$response = $response->withProtocolVersion($headers['Protocol-Version']); |
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unset($headers['Protocol-Version']); |
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} |
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if (array_key_exists('Status', $headers)) { |
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$response = $response->withStatus($headers['Status']); |
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unset($headers['Status']); |
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} |
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foreach ($headers as $name => $value) { |
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$response = $response->withHeader($name, (string) $value); |
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} |
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$body = new Stream('php://temp', 'r+'); |
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$body->write($content); |
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return $response->withBody($body); |
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} |
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} |
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juliangut /
spiral
