/**
* Emits the complete event for a request and emits an error
* event if an error is encountered during the after send.
*
* @param TransactionInterface $transaction Transaction to emit for
* @param array $stats Transfer stats
*
* @throws RequestException
*/
public static function emitComplete(TransactionInterface $transaction, array $stats = [])
{
$request = $transaction->getRequest();
$transaction->getResponse()->setEffectiveUrl($request->getUrl());
try {
$request->getEmitter()->emit('complete', new CompleteEvent($transaction, $stats));
} catch (RequestException $e) {
self::emitError($transaction, $e, $stats);
}
}
/**
* Write data to the response body of a request
*
* @param resource $curl
* @param string $write
*
* @return int
*/
public function writeResponseBody($curl, $write)
{
if (!($response = $this->transaction->getResponse())) {
return 0;
}
// Add a default body on the response if one was not found
if (!($body = $response->getBody())) {
$body = new Stream(fopen('php://temp', 'r+'));
$response->setBody($body);
}
return $body->write($write);
}
/**
* This function ensures that a response was set on a transaction. If one
* was not set, then the request is retried if possible. This error
* typically means you are sending a payload, curl encountered a
* "Connection died, retrying a fresh connect" error, tried to rewind the
* stream, and then encountered a "necessary data rewind wasn't possible"
* error, causing the request to be sent through curl_multi_info_read()
* without an error status.
*
* @param TransactionInterface $transaction
* @param BatchContext $context
*
* @return bool Returns true if it's OK, and false if it failed.
* @throws \GuzzleHttp\Exception\RequestException If it failed and cannot
* recover.
*/
private function validateResponseWasSet(TransactionInterface $transaction, BatchContext $context)
{
if ($transaction->getResponse()) {
return true;
}
$body = $transaction->getRequest()->getBody();
if (!$body) {
// This is weird and should probably never happen.
RequestEvents::emitError($transaction, new RequestException('No response was received for a request with no body. This' . ' could mean that you are saturating your network.', $transaction->getRequest()));
} elseif (!$body->isSeekable() || !$body->seek(0)) {
// Nothing we can do with this. Sorry!
RequestEvents::emitError($transaction, new RequestException('The connection was unexpectedly closed. The request would' . ' have been retried, but attempting to rewind the' . ' request body failed. Consider wrapping your request' . ' body in a CachingStream decorator to work around this' . ' issue if necessary.', $transaction->getRequest()));
} else {
$this->retryFailedConnection($transaction, $context);
}
return false;
}
