/**
* Sends a request to a HTTP server, and returns a response.
*
* @param RequestInterface $request
* @return ResponseInterface
*/
function send(RequestInterface $request)
{
$this->emit('beforeRequest', [$request]);
$retryCount = 0;
$redirects = 0;
do {
$doRedirect = false;
$retry = false;
try {
$response = $this->doRequest($request);
$code = (int) $response->getStatus();
// We are doing in-PHP redirects, because curl's
// FOLLOW_LOCATION throws errors when PHP is configured with
// open_basedir.
//
// https://github.com/fruux/sabre-http/issues/12
if (in_array($code, [301, 302, 307, 308]) && $redirects < $this->maxRedirects) {
$oldLocation = $request->getUrl();
// Creating a new instance of the request object.
$request = clone $request;
// Setting the new location
$request->setUrl(URLUtil::resolve($oldLocation, $response->getHeader('Location')));
$doRedirect = true;
$redirects++;
}
// This was a HTTP error
if ($code >= 400) {
$this->emit('error', [$request, $response, &$retry, $retryCount]);
$this->emit('error:' . $code, [$request, $response, &$retry, $retryCount]);
}
} catch (ClientException $e) {
$this->emit('exception', [$request, $e, &$retry, $retryCount]);
// If retry was still set to false, it means no event handler
// dealt with the problem. In this case we just re-throw the
// exception.
if (!$retry) {
throw $e;
}
}
if ($retry) {
$retryCount++;
}
} while ($retry || $doRedirect);
$this->emit('afterRequest', [$request, $response]);
if ($this->throwExceptions && $code >= 400) {
throw new ClientHttpException($response);
}
return $response;
}
