/// <summary>
/// Handles an exception for the given execution context.
/// </summary>
/// <param name="executionContext">The execution context, it contains the
/// request and response context.</param>
/// <param name="exception">The exception to handle.</param>
/// <returns>
/// Returns a boolean value which indicates if the original exception
/// should be rethrown.
/// This method can also throw a new exception to replace the original exception.
/// </returns>
public override bool HandleException(IExecutionContext executionContext, UnityHttpErrorResponseException exception)
{
LogCurlRequest(exception.Request);
var requestContext = executionContext.RequestContext;
var httpErrorResponse = exception.Response;
var errorResponse = new ErrorResponse();
if (httpErrorResponse.IsHeaderPresent(HeaderKeys.XAmzRequestIdHeader))
{
errorResponse.RequestId = httpErrorResponse.GetHeaderValue(HeaderKeys.XAmzRequestIdHeader);
requestContext.Metrics.AddProperty(Metric.AWSRequestID, httpErrorResponse.GetHeaderValue(HeaderKeys.XAmzRequestIdHeader));
}
if (httpErrorResponse.IsHeaderPresent(HeaderKeys.XAmzErrorTypeHeader))
{
errorResponse.Code = httpErrorResponse.GetHeaderValue(HeaderKeys.XAmzErrorTypeHeader);
}
if (httpErrorResponse.IsHeaderPresent(HeaderKeys.XAmzErrorMessageHeader))
{
errorResponse.Message = httpErrorResponse.GetHeaderValue(HeaderKeys.XAmzErrorMessageHeader);
}
if (httpErrorResponse.IsHeaderPresent(HeaderKeys.XAmzId2Header))
{
requestContext.Metrics.AddProperty(Metric.AmzId2, httpErrorResponse.GetHeaderValue(HeaderKeys.XAmzId2Header));
}
requestContext.Metrics.AddProperty(Metric.StatusCode, httpErrorResponse.StatusCode);
Exception unmarshalledException = null;
var unmarshaller = requestContext.Unmarshaller as ISimplifiedErrorUnmarshaller;
if (unmarshaller != null)
{
unmarshalledException = unmarshaller.UnmarshallException(httpErrorResponse, errorResponse, exception);
LogErrorMessage(unmarshalledException, errorResponse);
throw unmarshalledException;
}
else
{
var baseServiceException = new T();
baseServiceException.RequestId = errorResponse.RequestId;
baseServiceException.ErrorCode = errorResponse.Code;
baseServiceException.StatusCode = httpErrorResponse.StatusCode;
throw baseServiceException;
}
}
/// <summary>
/// Handles an exception for the given execution context.
/// </summary>
/// <param name="executionContext">The execution context, it contains the
/// request and response context.</param>
/// <param name="exception">The exception to handle.</param>
/// <returns>
/// Returns a boolean value which indicates if the original exception
/// should be rethrown.
/// This method can also throw a new exception to replace the original exception.
/// </returns>
public override bool HandleException(IExecutionContext executionContext, UnityHttpErrorResponseException exception)
{
var requestContext = executionContext.RequestContext;
var httpErrorResponse = exception.Response;
var unityResponseData = (UnityWebResponseData)httpErrorResponse.ResponseBody;
if (!unityResponseData.IsResponseBodyPresent)
{
//for backward compatibility when the response error message is missing
LogCurlRequest(exception.Request);
var errorResponse = new ErrorResponse();
if (httpErrorResponse.IsHeaderPresent(HeaderKeys.XAmzRequestIdHeader))
{
errorResponse.RequestId = httpErrorResponse.GetHeaderValue(HeaderKeys.XAmzRequestIdHeader);
requestContext.Metrics.AddProperty(Metric.AWSRequestID, httpErrorResponse.GetHeaderValue(HeaderKeys.XAmzRequestIdHeader));
}
if (httpErrorResponse.IsHeaderPresent(HeaderKeys.XAmzErrorTypeHeader))
{
errorResponse.Code = httpErrorResponse.GetHeaderValue(HeaderKeys.XAmzErrorTypeHeader);
}
if (httpErrorResponse.IsHeaderPresent(HeaderKeys.XAmzErrorMessageHeader))
{
errorResponse.Message = httpErrorResponse.GetHeaderValue(HeaderKeys.XAmzErrorMessageHeader);
}
if (httpErrorResponse.IsHeaderPresent(HeaderKeys.XAmzId2Header))
{
requestContext.Metrics.AddProperty(Metric.AmzId2, httpErrorResponse.GetHeaderValue(HeaderKeys.XAmzId2Header));
}
requestContext.Metrics.AddProperty(Metric.StatusCode, httpErrorResponse.StatusCode);
Exception unmarshalledException = null;
var unmarshaller = requestContext.Unmarshaller as ISimplifiedErrorUnmarshaller;
if (unmarshaller != null)
{
unmarshalledException = unmarshaller.UnmarshallException(httpErrorResponse, errorResponse, exception);
LogErrorMessage(unmarshalledException, errorResponse);
throw unmarshalledException;
}
else
{
var baseServiceException = new AmazonServiceException();
baseServiceException.RequestId = errorResponse.RequestId;
baseServiceException.ErrorCode = errorResponse.Code;
baseServiceException.StatusCode = httpErrorResponse.StatusCode;
throw baseServiceException;
}
}
else
{
// If 404 was suppressed and successfully unmarshalled,
// don't rethrow the original exception.
if (HandleSuppressed404(executionContext, httpErrorResponse))
{
return(false);
}
requestContext.Metrics.AddProperty(Metric.StatusCode, httpErrorResponse.StatusCode);
AmazonServiceException errorResponseException = null;
// Unmarshall the service error response and throw the corresponding service exception.
try
{
using (httpErrorResponse.ResponseBody)
{
var unmarshaller = requestContext.Unmarshaller;
var readEntireResponse = true;
var errorContext = unmarshaller.CreateContext(httpErrorResponse,
readEntireResponse,
httpErrorResponse.ResponseBody.OpenResponse(),
requestContext.Metrics);
try
{
errorResponseException = unmarshaller.UnmarshallException(errorContext,
exception, httpErrorResponse.StatusCode);
}
catch (Exception e)
{
// Rethrow Amazon service or client exceptions
if (e is AmazonServiceException ||
e is AmazonClientException)
{
throw;
}
// Else, there was an issue with the response body, throw AmazonUnmarshallingException
var requestId = httpErrorResponse.GetHeaderValue(HeaderKeys.RequestIdHeader);
var body = errorContext.ResponseBody;
throw new AmazonUnmarshallingException(requestId, lastKnownLocation: null, responseBody: body, innerException: e);
}
Debug.Assert(errorResponseException != null);
requestContext.Metrics.AddProperty(Metric.AWSRequestID, errorResponseException.RequestId);
requestContext.Metrics.AddProperty(Metric.AWSErrorCode, errorResponseException.ErrorCode);
var logResponseBody = requestContext.ClientConfig.LogResponse ||
AWSConfigs.LoggingConfig.LogResponses != ResponseLoggingOption.Never;
if (logResponseBody)
{
this.Logger.Error(errorResponseException, "Received error response: [{0}]",
errorContext.ResponseBody);
}
}
}
catch (Exception unmarshallException)
{
this.Logger.Error(unmarshallException, "Failed to unmarshall a service error response.");
throw;
}
throw errorResponseException;
}
}