/**
* {@inheritdoc}
*/
public function handleRequest(RequestInterface $request, callable $next, callable $first)
{
$method = strtoupper($request->getMethod());
// if the request not is cachable, move to $next
if ($method !== 'GET' && $method !== 'HEAD') {
return $next($request);
}
// If we can cache the request
$key = $this->createCacheKey($request);
$cacheItem = $this->pool->getItem($key);
if ($cacheItem->isHit()) {
// return cached response
$data = $cacheItem->get();
$response = $data['response'];
$response = $response->withBody($this->streamFactory->createStream($data['body']));
return new FulfilledPromise($response);
}
return $next($request)->then(function (ResponseInterface $response) use($cacheItem) {
if ($this->isCacheable($response)) {
$bodyStream = $response->getBody();
$body = $bodyStream->__toString();
if ($bodyStream->isSeekable()) {
$bodyStream->rewind();
} else {
$response = $response->withBody($this->streamFactory->createStream($body));
}
$cacheItem->set(['response' => $response, 'body' => $body])->expiresAfter($this->getMaxAge($response));
$this->pool->save($cacheItem);
}
return $response;
});
}
/**
* {@inheritdoc}
*/
public function sendAsyncRequest(RequestInterface $request)
{
$reactRequest = $this->buildReactRequest($request);
$deferred = new Deferred();
$reactRequest->on('error', function (\Exception $error) use($deferred, $request) {
$deferred->reject(new RequestException($error->getMessage(), $request, $error));
});
$reactRequest->on('response', function (ReactResponse $reactResponse = null) use($deferred, $reactRequest, $request) {
$bodyStream = $this->streamFactory->createStream();
$reactResponse->on('data', function ($data) use(&$bodyStream) {
$bodyStream->write((string) $data);
});
$reactResponse->on('end', function (\Exception $error = null) use($deferred, $request, $reactResponse, &$bodyStream) {
$response = $this->buildResponse($reactResponse, $bodyStream);
if (null !== $error) {
$deferred->reject(new HttpException($error->getMessage(), $request, $response, $error));
} else {
$deferred->resolve($response);
}
});
});
$reactRequest->end((string) $request->getBody());
$promise = new Promise($deferred->promise());
$promise->setLoop($this->loop);
return $promise;
}
public function createSnitcherRequest(UriInterface $uri, Message $message)
{
$headers = $this->createHeaders($this->userAgent);
$body = $this->createBody($message);
$stream = $this->streamFactory->createStream($body);
$request = $this->messageFactory->createRequest("POST", $uri, $headers, $stream);
return $request;
}
/**
* @param CacheItemInterface $cacheItem
*
* @return ResponseInterface
*/
private function createResponseFromCacheItem(CacheItemInterface $cacheItem)
{
$data = $cacheItem->get();
/** @var ResponseInterface $response */
$response = $data['response'];
$response = $response->withBody($this->streamFactory->createStream($data['body']));
return $response;
}
/**
* Create new ResponseBuilder instance
*
* @return ResponseBuilder
*
* @throws \RuntimeException If creating the stream from $body fails.
*/
private function createResponseBuilder()
{
try {
$body = $this->streamFactory->createStream(fopen('php://temp', 'w+'));
} catch (\InvalidArgumentException $e) {
throw new \RuntimeException('Can not create "php://temp" stream.');
}
$response = $this->messageFactory->createResponse(200, null, [], $body);
return new ResponseBuilder($response);
}
/**
* Build the stream.
*
* @return StreamInterface
*/
public function build()
{
$streams = '';
foreach ($this->data as $data) {
// Add start and headers
$streams .= "--{$this->getBoundary()}\r\n" . $this->getHeaders($data['headers']) . "\r\n";
// Convert the stream to string
$streams .= (string) $data['contents'];
$streams .= "\r\n";
}
// Append end
$streams .= "--{$this->getBoundary()}--\r\n";
return $this->streamFactory->createStream($streams);
}
/**
* Sends a PSR-7 request.
*
* @param RequestInterface $request
*
* @return ResponseInterface
*
* @throws \Http\Client\Exception If an error happens during processing the request.
* @throws \Exception If processing the request is impossible (eg. bad configuration).
*/
public function sendRequest(RequestInterface $request)
{
$body = (string) $request->getBody();
$headers = [];
foreach (array_keys($request->getHeaders()) as $headerName) {
if (strtolower($headerName) === 'content-length') {
$values = array(strlen($body));
} else {
$values = $request->getHeader($headerName);
}
foreach ($values as $value) {
$headers[] = $headerName . ': ' . $value;
}
}
$streamContextOptions = array('protocol_version' => $request->getProtocolVersion(), 'method' => $request->getMethod(), 'header' => implode("\r\n", $headers), 'timeout' => $this->timeout, 'ignore_errors' => true, 'follow_location' => $this->followRedirects ? 1 : 0, 'max_redirects' => 100);
if (strlen($body) > 0) {
$streamContextOptions['content'] = $body;
}
$context = stream_context_create(array('http' => $streamContextOptions, 'https' => $streamContextOptions));
$httpHeadersOffset = 0;
$finalUrl = (string) $request->getUri();
stream_context_set_params($context, array('notification' => function ($code, $severity, $msg, $msgCode, $bytesTx, $bytesMax) use(&$remoteDocument, &$http_response_header, &$httpHeadersOffset) {
if ($code === STREAM_NOTIFY_REDIRECTED) {
$finalUrl = $msg;
$httpHeadersOffset = count($http_response_header);
}
}));
$response = $this->messageFactory->createResponse();
if (false === ($responseBody = @file_get_contents((string) $request->getUri(), false, $context))) {
if (!isset($http_response_header)) {
throw new NetworkException('Unable to execute request', $request);
}
} else {
$response = $response->withBody($this->streamFactory->createStream($responseBody));
}
$parser = new HeaderParser();
try {
return $parser->parseArray(array_slice($http_response_header, $httpHeadersOffset), $response);
} catch (\Exception $e) {
throw new RequestException($e->getMessage(), $request, $e);
}
}
/**
* Unserialize data from binary string.
*
* @param string $string
*
* @return MessageInterface Unserialized data.
*
* @throws UnserializeException If $string can not be unserialized.
*
* @since 1.0
*/
public function unserialize($string)
{
$parts = explode("\r\n", $string, 2);
if (count($parts) !== 2) {
throw new UnserializeException('Serialized data does not contain message type ID');
}
$type = $parts[0];
$string = $parts[1];
switch ($type) {
case self::REQUEST:
list($part, $string) = explode("\r\n", $string, 2);
$pattern = "/^HTTP\\/(?P<version>\\d\\.\\d) (?P<method>[A-Z]+) (?P<uri>.+)\$/";
if (preg_match($pattern, $part, $matches) === 0) {
throw new UnserializeException(sprintf('Line "%s" not matches HTTP heading format', $part));
}
$message = $this->messageFactory->createRequest($matches['method'], $matches['uri']);
$message = $message->withProtocolVersion($matches['version']);
break;
case self::RESPONSE:
$message = $this->messageFactory->createResponse();
break;
default:
throw new UnserializeException();
}
/** @var MessageInterface $message */
list($part, $string) = explode("\r\n\r\n", $string, 2);
$headers = explode("\r\n", $part);
foreach ($headers as $header) {
list($name, $value) = explode(':', $header, 2);
$name = trim(urldecode($name));
$value = trim(urldecode($value));
if ($message->hasHeader($name)) {
$message = $message->withAddedHeader($name, $value);
} else {
$message = $message->withHeader($name, $value);
}
}
$body = $this->streamFactory->createStream($string);
$message = $message->withBody($body);
return $message;
}
