/**
* @param Envelope $envelope
* @return Request
* @throws Exception\InvalidJsonRpcVersion
* @throws Exception\JsonParseError
*/
protected function requestFromEnvelope(Envelope $envelope) : Request
{
if ($envelope->getHeader('jsonrpc') !== JsonRpcRequest::JSONRPC_VERSION) {
throw new Exception\InvalidJsonRpcVersion();
}
if ($envelope->getContentEncoding() !== 'UTF-8' || $envelope->getContentType() !== 'application/json') {
throw new Exception\InvalidJsonRpcRequest();
}
$payload = json_decode($envelope->getBody(), true);
if (0 != json_last_error()) {
throw new Exception\JsonParseError();
}
return new JsonRpcRequest($envelope->getExchangeName(), $envelope->getType(), $payload, $envelope->getCorrelationId(), $envelope->getRoutingKey(), (int) $envelope->getExpiration(), $envelope->getTimestamp());
}
/**
* @param Envelope $envelope
* @return Response
*/
private function responseFromEnvelope(Envelope $envelope) : Response
{
if ($envelope->getHeader('jsonrpc') !== JsonRpcResponse::JSONRPC_VERSION || $envelope->getContentEncoding() !== 'UTF-8' || $envelope->getContentType() !== 'application/json') {
return JsonRpcResponse::withError($envelope->getCorrelationId(), new JsonRpcError(JsonRpcError::ERROR_CODE_32603, 'Invalid JSON-RPC response'));
}
$payload = json_decode($envelope->getBody(), true);
if (!in_array($envelope->getCorrelationId(), $this->requestIds)) {
$response = JsonRpcResponse::withError($envelope->getCorrelationId(), new JsonRpcError(JsonRpcError::ERROR_CODE_32603, 'Mismatched JSON-RPC IDs'));
} elseif (isset($payload['result'])) {
$response = JsonRpcResponse::withResult($envelope->getCorrelationId(), $payload['result']);
} elseif (!isset($payload['error']['code']) || !isset($payload['error']['message']) || !is_int($payload['error']['code']) || !is_string($payload['error']['message'])) {
$response = JsonRpcResponse::withError($envelope->getCorrelationId(), new JsonRpcError(JsonRpcError::ERROR_CODE_32603, 'Invalid JSON-RPC response'));
} else {
$response = JsonRpcResponse::withError($envelope->getCorrelationId(), new JsonRpcError($payload['error']['code'], $payload['error']['message']), $payload['data'] ?? null);
}
return $response;
}