private async Task <bool> HandleHttpErrorResponseAsync(WebRequestState state, HttpResponseMessage httpErrorResponse, HttpClientResponseData responseData, CancellationToken cancellationToken)
{
HttpStatusCode statusCode;
AmazonServiceException errorResponseException = null;
UnmarshallerContext errorContext = null;
statusCode = httpErrorResponse.StatusCode;
state.Metrics.AddProperty(Metric.StatusCode, statusCode);
string redirectedLocation = responseData.GetHeaderValue("location");
state.Metrics.AddProperty(Metric.RedirectLocation, redirectedLocation);
var responseStream = await responseData.OpenResponseAsync()
.ConfigureAwait(continueOnCapturedContext: false);
errorContext = state.Unmarshaller.CreateContext(responseData,
Config.LogResponse || Config.ReadEntireResponse || AWSConfigs.LoggingConfig.LogResponses != ResponseLoggingOption.Never,
responseStream,
state.Metrics);
errorResponseException = state.Unmarshaller.UnmarshallException(errorContext, null, statusCode);
if (Config.LogResponse || AWSConfigs.LoggingConfig.LogResponses != ResponseLoggingOption.Never)
{
this.logger.Error(errorResponseException, "Received error response: [{0}]", errorContext.ResponseBody);
}
state.Metrics.AddProperty(Metric.AWSRequestID, errorResponseException.RequestId);
state.Metrics.AddProperty(Metric.AWSErrorCode, errorResponseException.ErrorCode);
if (CanRetry(state))
{
if (isTemporaryRedirect(statusCode, redirectedLocation))
{
this.logger.DebugFormat("Request {0} is being redirected to {1}.", state.Request.RequestName, redirectedLocation);
state.Request.Endpoint = new Uri(redirectedLocation);
return(true);
}
else if (ShouldRetry(statusCode, this.Config, errorResponseException, state.RetriesAttempt))
{
this.logger.DebugFormat("Retry number {0} for request {1}.", state.RetriesAttempt, state.Request.RequestName);
pauseExponentially(state);
cancellationToken.ThrowIfCancellationRequested();
return(true);
}
}
if (errorResponseException != null)
{
this.logger.Error(errorResponseException, "Error making request {0}.", state.Request.RequestName);
state.Metrics.AddProperty(Metric.Exception, errorResponseException);
throw errorResponseException;
}
AmazonServiceException excep = new AmazonServiceException("Unable to make request", null, statusCode);
this.logger.Error(excep, "Error making request {0}.", state.Request.RequestName);
state.Metrics.AddProperty(Metric.Exception, excep);
throw excep;
}
private async Task <AmazonWebServiceResponse> HandleHttpContentAsync(WebRequestState state, HttpResponseMessage httpResponse)
{
LogResponse(state.Metrics, state.Request, httpResponse.StatusCode);
AmazonWebServiceResponse response = null;
HttpClientResponseData responseData = new HttpClientResponseData(httpResponse);
UnmarshallerContext context = null;
try
{
var responseStream = await responseData.OpenResponseAsync()
.ConfigureAwait(continueOnCapturedContext: false);
context = state.Unmarshaller.CreateContext(responseData,
this.SupportResponseLogging &&
(Config.LogResponse || Config.ReadEntireResponse || AWSConfigs.ResponseLogging != ResponseLoggingOption.Never),
responseStream,
state.Metrics);
using (state.Metrics.StartEvent(Metric.ResponseUnmarshallTime))
{
response = state.Unmarshaller.Unmarshall(context);
}
context.ValidateCRC32IfAvailable();
var contentHeaders = httpResponse.Content.Headers as HttpContentHeaders;
if (contentHeaders != null)
{
response.ContentLength = contentHeaders.ContentLength.GetValueOrDefault();
response.HttpStatusCode = httpResponse.StatusCode;
}
if (response.ResponseMetadata != null)
{
state.Metrics.AddProperty(Metric.AWSRequestID, response.ResponseMetadata.RequestId);
}
LogFinishedResponse(state.Metrics, context, response.ContentLength);
return(response);
}
finally
{
if (!state.Unmarshaller.HasStreamingProperty)
{
httpResponse.Dispose();
}
ProcessResponseHandlers(response, state.Request, responseData);
}
}