public HttpResponseMessage HandleResponse(IOnPremiseConnectorRequest request, HttpRequestMessage message, IPrincipal clientUser, IOnPremiseConnectorResponse response)
{
if (_responseInterceptor == null)
{
return(null);
}
_logger?.Verbose("Handling response. request-id={RequestId}", request.RequestId);
try
{
var interceptedRequest = CreateInterceptedRequest(request, message, clientUser);
var immediateResponse = response == null?_responseInterceptor.OnResponseFailed(interceptedRequest) : _responseInterceptor.OnResponseReceived(interceptedRequest, new InterceptedResponse(response));
if (immediateResponse != null)
{
immediateResponse.RequestMessage = message;
}
return(immediateResponse);
}
catch (Exception ex)
{
_logger?.Error(ex, "Error while executing the response interceptor. type-name={InterceptorType}, request-id={RequestId}", _requestInceptor?.GetType().Name, request.RequestId);
return(null);
}
}
internal void AddContentHeaders(IOnPremiseConnectorRequest onPremiseConnectorRequest, HttpRequestMessage request)
{
foreach (var httpHeader in request.Content.Headers)
{
onPremiseConnectorRequest.HttpHeaders.Add(httpHeader.Key, CombineMultipleHttpHeaderValuesIntoOneCommaSeperatedValue(httpHeader.Value));
}
}
private async Task ForwardClientRequestAsync(string connectionId, IOnPremiseConnectorRequest request)
{
_logger?.Verbose("Forwarding client request to connection. connection-id={ConnectionId}, request-id={RequestId}, http-method={RequestMethod}, url={RequestUrl}, origin-id={OriginId}, body-length={RequestContentLength}",
connectionId, request.RequestId, request.HttpMethod, request.Url, request.OriginId, request.ContentLength);
await Connection.Send(connectionId, request).ConfigureAwait(false);
}
private async Task ForwardClientRequestAsync(string connectionId, IOnPremiseConnectorRequest request)
{
try
{
_logger?.Verbose("Forwarding client request to connection. connection-id={ConnectionId}, request-id={RequestId}, http-method={RequestMethod}, url={RequestUrl}, origin-id={OriginId}, body-length={RequestContentLength}",
connectionId, request.RequestId, request.HttpMethod, _configuration.LogSensitiveData ? request.Url : request.Url.StripQueryString(), request.OriginId, request.ContentLength);
var json = JObject.FromObject(request);
if (request.Properties != null)
{
json.Remove(nameof(IOnPremiseConnectorRequest.Properties));
foreach (var kvp in request.Properties)
{
json[kvp.Key] = JToken.FromObject(kvp.Value);
}
}
await Connection.Send(connectionId, json).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger?.Error(ex, "An error occured forwarding request to connection. connection-id={ConnectionId}, request={@Request}", connectionId, request);
}
}
public void Trace(IOnPremiseConnectorRequest request, IOnPremiseConnectorResponse response, IEnumerable <Guid> traceConfigurationIds)
{
foreach (var traceConfigurationId in traceConfigurationIds)
{
Trace(request, response, traceConfigurationId);
}
}
public void LogRequest(IOnPremiseConnectorRequest request, IOnPremiseConnectorResponse response, Guid linkId, Guid originId, string relayPath, HttpStatusCode?statusCode)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
var pathInformation = _pathSplitter.Split(relayPath);
_logRepository.LogRequest(new RequestLogEntry
{
LocalUrl = pathInformation.LocalUrl,
HttpStatusCode = statusCode ?? HttpStatusCode.InternalServerError,
ContentBytesIn = request.ContentLength,
ContentBytesOut = response?.ContentLength ?? 0,
OnPremiseConnectorInDate = request.RequestStarted,
OnPremiseConnectorOutDate = request.RequestFinished,
OnPremiseTargetInDate = response?.RequestStarted,
OnPremiseTargetOutDate = response?.RequestFinished,
OriginId = originId,
OnPremiseTargetKey = pathInformation.OnPremiseTargetKey,
LinkId = linkId,
RequestId = request.RequestId,
});
}
private void SendOnPremiseConnectorRequest(Guid linkId, IOnPremiseConnectorRequest request)
{
PrepareRequestBodyForRelaying((OnPremiseConnectorRequest)request);
_logger?.Verbose("Sending on premise connector request. request-id={RequestId}, link-id={LinkId}", request.RequestId, linkId);
_backendCommunication.SendOnPremiseConnectorRequest(linkId, request);
}
public void LogRequest(IOnPremiseConnectorRequest onPremiseConnectorRequest, IOnPremiseTargetReponse onPremiseTargetReponse, HttpStatusCode responseStatusCode, Guid linkId, string originId, string relayPath)
{
if (onPremiseConnectorRequest == null)
{
throw new ArgumentNullException(nameof(onPremiseConnectorRequest), "A client request must be set.");
}
var onPremiseTargetInformation = GetOnPremiseTargetInformation(onPremiseTargetReponse);
var pathInformation = _pathSplitter.Split(relayPath);
_logRepository.LogRequest(new RequestLogEntry
{
LocalUrl = pathInformation.LocalUrl,
HttpStatusCode = responseStatusCode,
ContentBytesIn = GetContentByteCount(onPremiseConnectorRequest.Body),
ContentBytesOut = onPremiseTargetInformation.ContentBytesOut,
OnPremiseConnectorInDate = onPremiseConnectorRequest.RequestStarted,
OnPremiseConnectorOutDate = onPremiseConnectorRequest.RequestFinished,
OnPremiseTargetInDate = onPremiseTargetInformation.OnPremiseTargetInDate,
OnPremiseTargetOutDate = onPremiseTargetInformation.OnPremiseTargetOutDate,
OriginId = Guid.Parse(originId),
OnPremiseTargetKey = pathInformation.OnPremiseTargetKey,
LinkId = linkId
});
}
private async Task ForwardClientRequest(string connectionId, IOnPremiseConnectorRequest onPremiseConnectorRequest)
{
_logger.Debug("Forwarding client request to connection '{0}'", connectionId);
_logger.Trace("Forwarding client request to connection '{0}'. request-id={1}, http-method={2}, url={3}, origin-id={4}, body-length={5}",
connectionId, onPremiseConnectorRequest.RequestId, onPremiseConnectorRequest.HttpMethod, onPremiseConnectorRequest.Url, onPremiseConnectorRequest.OriginId, onPremiseConnectorRequest.Body?.Length ?? 0);
var onPremiseTargetRequest = new OnPremiseTargetRequest
{
RequestId = onPremiseConnectorRequest.RequestId,
HttpMethod = onPremiseConnectorRequest.HttpMethod,
Url = onPremiseConnectorRequest.Url,
HttpHeaders = onPremiseConnectorRequest.HttpHeaders,
OriginId = onPremiseConnectorRequest.OriginId
};
if (onPremiseConnectorRequest.Body != null)
{
if (onPremiseConnectorRequest.Body.Length > 0x20000) // 128k
{
_temporaryStore.Save(onPremiseConnectorRequest.RequestId, onPremiseConnectorRequest.Body);
onPremiseTargetRequest.Body = string.Empty;
}
else
{
onPremiseTargetRequest.Body = Convert.ToBase64String(onPremiseConnectorRequest.Body);
}
}
await Connection.Send(connectionId, onPremiseTargetRequest);
}
public void SendOnPremiseConnectorRequest(Guid linkId, IOnPremiseConnectorRequest request)
{
CheckDisposed();
_logger?.Debug("Dispatching request. request-id={RequestId}, link-id={LinkId}", request.RequestId, linkId);
_messageDispatcher.DispatchRequest(linkId, request);
}
public override async Task SendOnPremiseConnectorRequest(string onPremiseId, IOnPremiseConnectorRequest onPremiseConnectorRequest)
{
CheckDisposed();
_logger.Debug("Sending client request for On-Premise Connector '{0}'", onPremiseId);
var queue = DeclareOnPremiseQueue(onPremiseId);
await _bus.Advanced.PublishAsync(Exchange.GetDefault(), queue.Name, false, false, new Message <string>(JsonConvert.SerializeObject(onPremiseConnectorRequest)));
}
private async Task ForwardClientRequestAsync(string connectionId, IOnPremiseConnectorRequest request)
{
var uri = new Uri(new Uri("http://localhost"), request.Url);
_logger?.Verbose("Forwarding client request to connection. connection-id={ConnectionId}, request-id={RequestId}, http-method={RequestMethod}, url={RequestUrl}, origin-id={OriginId}, body-length={RequestContentLength}",
connectionId, request.RequestId, request.HttpMethod, _configuration.LogSensitiveData ? uri.PathAndQuery : uri.AbsolutePath, request.OriginId, request.ContentLength);
await Connection.Send(connectionId, request).ConfigureAwait(false);
}
private InterceptedRequest CreateInterceptedRequest(IOnPremiseConnectorRequest request, HttpRequestMessage message, IPrincipal clientUser)
{
return(new InterceptedRequest(request)
{
ClientIpAddress = GetRemoteIpAddress(request, message),
ClientUser = clientUser,
ClientRequestUri = message.RequestUri,
});
}
public void DispatchRequest(Guid linkId, IOnPremiseConnectorRequest request)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
CheckDisposed();
_logger?.Debug("Dispatching request. link-id={LinkId}, request-id={RequestId}, method={HttpMethod}, url={RequestUrl}", linkId, request.RequestId, request.HttpMethod, request.Url);
TryGetRequestSubject(linkId)?.OnNext(request);
}
private IPAddress GetRemoteIpAddress(IOnPremiseConnectorRequest request, HttpRequestMessage message)
{
try
{
return(message.GetRemoteIpAddress());
}
catch (Exception ex)
{
_logger?.Warning(ex, "Could not fetch remote IP address. request-id={RequestId}", request.RequestId);
}
return(null);
}
public void DispatchRequest(Guid linkId, IOnPremiseConnectorRequest request)
{
var content = Serialize(request, out var props);
if (request.Expiration != TimeSpan.Zero)
{
_logger?.Verbose("Setting RabbitMQ message TTL. request-id={RequestId}, request-expiration={RequestExpiration}", request.RequestId, request.Expiration);
props.Expiration = request.Expiration.TotalMilliseconds.ToString(CultureInfo.InvariantCulture);
}
lock (_model)
{
_model.BasicPublish(_EXCHANGE_NAME, $"{_REQUEST_QUEUE_PREFIX}{linkId}", false, props, content);
}
}
private void FinishRequest(IOnPremiseConnectorRequest request, IOnPremiseConnectorResponse response, Guid linkId, string path, HttpStatusCode statusCode)
{
request.RequestFinished = DateTime.UtcNow;
_logger?.Verbose("Finishing request. request-id={RequestId}, link-id={LinkId}, on-premise-duration={RemoteDuration}, global-duration={GlobalDuration}", request.RequestId, linkId, response?.RequestFinished - response?.RequestStarted, request.RequestFinished - request.RequestStarted);
// TODO this may be debounced for e.g. 5 minutes to skip querying on each request in future release
var currentTraceConfigurationId = _traceManager.GetCurrentTraceConfigurationId(linkId);
if (currentTraceConfigurationId != null)
{
_traceManager.Trace(request, response, currentTraceConfigurationId.Value);
}
_requestLogger.LogRequest(request, response, linkId, _backendCommunication.OriginId, path, statusCode);
}
public InterceptedRequest(IOnPremiseConnectorRequest other)
{
RequestId = other.RequestId;
OriginId = other.OriginId;
AcknowledgeId = other.AcknowledgeId;
RequestStarted = other.RequestStarted;
RequestFinished = other.RequestFinished;
HttpMethod = other.HttpMethod;
Url = other.Url;
HttpHeaders = other.HttpHeaders;
Body = other.Body;
AcknowledgmentMode = other.AcknowledgmentMode;
Stream = other.Stream;
ContentLength = other.ContentLength;
AlwaysSendToOnPremiseConnector = other.AlwaysSendToOnPremiseConnector;
Expiration = other.Expiration;
AcknowledgeOriginId = other.AcknowledgeOriginId;
}
public HttpResponseMessage HandleResponse(IOnPremiseConnectorRequest request, HttpRequestMessage message, IPrincipal clientUser, IOnPremiseConnectorResponse response, bool forwardOnPremiseTargetErrorResponse)
{
if (_responseInterceptor == null)
{
return(_httpResponseMessageBuilder.BuildFromConnectorResponse(response, forwardOnPremiseTargetErrorResponse, request.RequestId));
}
_logger.Verbose("Handling response. request-id={RequestId}", request.RequestId);
try
{
var interceptedRequest = CreateInterceptedRequest(request, message, clientUser);
HttpResponseMessage immediateResponse = null;
if (response == null)
{
immediateResponse = _responseInterceptor.OnResponseFailed(interceptedRequest);
}
else
{
var interceptedResponse = new InterceptedResponse(_logger.ForContext <IInterceptedResponse>(), response);
immediateResponse = _responseInterceptor.OnResponseReceived(interceptedRequest, interceptedResponse);
if (immediateResponse == null)
{
return(_httpResponseMessageBuilder.BuildFromConnectorResponse(interceptedResponse, forwardOnPremiseTargetErrorResponse, request.RequestId));
}
}
if (immediateResponse != null)
{
immediateResponse.RequestMessage = message;
}
return(immediateResponse ?? _httpResponseMessageBuilder.BuildFromConnectorResponse(null, forwardOnPremiseTargetErrorResponse, request.RequestId));
}
catch (Exception ex)
{
_logger.Error(ex, "Error while executing the response interceptor. type-name={InterceptorType}, request-id={RequestId}", _requestInterceptor?.GetType().Name, request.RequestId);
return(null);
}
}
private async Task ForwardClientRequestAsync(string connectionId, IOnPremiseConnectorRequest request)
{
var uri = new Uri(new Uri("http://localhost"), request.Url);
_logger?.Verbose("Forwarding client request to connection. connection-id={ConnectionId}, request-id={RequestId}, http-method={RequestMethod}, url={RequestUrl}, origin-id={OriginId}, body-length={RequestContentLength}",
connectionId, request.RequestId, request.HttpMethod, _configuration.LogSensitiveData ? uri.PathAndQuery : uri.AbsolutePath, request.OriginId, request.ContentLength);
var json = JObject.FromObject(request);
if (request.Properties != null)
{
json.Remove(nameof(IOnPremiseConnectorRequest.Properties));
foreach (var kvp in request.Properties)
{
json[kvp.Key] = JToken.FromObject(kvp.Value);
}
}
await Connection.Send(connectionId, json).ConfigureAwait(false);
}
public void Trace(IOnPremiseConnectorRequest request, IOnPremiseConnectorResponse response, Guid traceConfigurationId)
{
try
{
if (!Directory.Exists(_configuration.TraceFileDirectory))
{
Directory.CreateDirectory(_configuration.TraceFileDirectory);
}
var filenamePrefix = $"{Path.Combine(_configuration.TraceFileDirectory, traceConfigurationId.ToString())}-{DateTime.Now.Ticks}";
_traceFileWriter.WriteHeaderFileAsync(filenamePrefix + _ON_PREMISE_CONNECTOR_HEADER_EXTENSION, request.HttpHeaders);
_traceFileWriter.WriteContentFileAsync(filenamePrefix + _ON_PREMISE_CONNECTOR_CONTENT_EXTENSION, request.Body);
_traceFileWriter.WriteHeaderFileAsync(filenamePrefix + _ON_PREMISE_TARGET_HEADER_EXTENSION, response.HttpHeaders);
_traceFileWriter.WriteContentFileAsync(filenamePrefix + _ON_PREMISE_TARGET_CONTENT_EXTENSION, response.Body);
}
catch (Exception ex)
{
_logger?.Warning(ex, "Could not create trace");
}
}
public void Trace(IOnPremiseConnectorRequest onPremiseConnectorRequest, IOnPremiseTargetReponse onPremiseTargetReponse, Guid traceConfigurationId)
{
try
{
if (!Directory.Exists(_configuration.TraceFileDirectory))
{
Directory.CreateDirectory(_configuration.TraceFileDirectory);
}
var filenamePrefix = $"{Path.Combine(_configuration.TraceFileDirectory, traceConfigurationId.ToString())}-{DateTime.Now.Ticks}";
_traceFileWriter.WriteHeaderFile(filenamePrefix + OnPremiseConnectorHeaderExtension, onPremiseConnectorRequest.HttpHeaders);
_traceFileWriter.WriteContentFile(filenamePrefix + OnPremiseConnectorContentExtension, onPremiseConnectorRequest.Body);
_traceFileWriter.WriteHeaderFile(filenamePrefix + OnPremiseTargetHeaderExtension, onPremiseTargetReponse.HttpHeaders);
_traceFileWriter.WriteContentFile(filenamePrefix + OnPremiseTargetContentExtension, onPremiseTargetReponse.Body);
}
catch (Exception ex)
{
_logger.Warn("Could not create trace", ex);
}
}
public void LogRequest(IOnPremiseConnectorRequest request, IOnPremiseConnectorResponse response, Guid linkId, Guid originId, String relayPath, HttpStatusCode?statusCode)
{
// Noop
}
public abstract Task SendOnPremiseConnectorRequest(string onPremiseId, IOnPremiseConnectorRequest onPremiseConnectorRequest);
public void DispatchRequest(Guid linkId, IOnPremiseConnectorRequest request)
{
EnsureRequestChannel(linkId.ToString()).Dispatch(request);
}
