/// <summary>
/// Initializes a new instance of <see cref="ResponseErrorEventArgs"/> with the specified parameters.
/// </summary>
/// <param name="requestUri">The request uri.</param>
/// <param name="exception">The exception of <see cref="AMicroblogException"/> type.</param>
/// <param name="httpMethod">The request method.</param>
/// <param name="contentType">The request content type.</param>
public ResponseErrorEventArgs(string requestUri, AMicroblogException exception, string httpMethod, string contentType)
{
ErrorData = new ResponseErrorData();
ErrorData.ErrorCode = exception.ErrorCode;
ErrorData.RequestUri = requestUri;
ErrorData.Exception = exception;
ErrorData.HttpMethod = httpMethod;
ErrorData.ContentType = contentType;
}
/// <summary>
/// Performs the HTTP request.
/// </summary>
/// <returns>The server response string(UTF8 decoded).</returns>
public virtual string Request()
{
HttpWebRequest req = HttpWebRequest.Create(ConstructUri()) as HttpWebRequest;
AppendHeaders(req.Headers);
if (!string.IsNullOrEmpty(Method))
{
req.Method = Method;
}
if (!string.IsNullOrEmpty(ContentType))
{
req.ContentType = ContentType;
}
PrepareRequest(req);
// Calls GetRequestStream with a "GET" method, an exception is thrown "Cannot send a content-body with this verb-type."
if (req.Method == HttpMethod.Post)
{
using (var reqStream = req.GetRequestStream())
{
WriteBody(reqStream);
}
// ContentLength is automatically calculated.
}
WebResponse resp = null;
try
{
resp = req.GetResponse();
}
catch (WebException wex)
{
ErrorResponse errorResp;
var webResp = wex.Response as HttpWebResponse;
if (null == webResp)
throw new AMicroblogException(LocalErrorCode.NetworkUnavailable);
try
{
var responseContent = RetrieveResponse(webResp);
if (!string.IsNullOrEmpty(responseContent) && responseContent.StartsWith(Constants.XmlHeader, StringComparison.InvariantCultureIgnoreCase))
{
errorResp = XmlSerializationHelper.XmlToObject<ErrorResponse>(responseContent);
// Retrieves the error code and wraps the exception.
var errorCode = AMicroblogException.RetrieveErrorCode(errorResp.ErrorMessage);
if (!string.IsNullOrEmpty(errorCode))
errorResp.ErrorCode = int.Parse(errorCode);
}
else
{
// Handle other cases
errorResp = new ErrorResponse() { ErrorCode = (int)webResp.StatusCode, ErrorMessage = webResp.StatusDescription };
}
}
catch (Exception exx)
{
throw new AMicroblogException(LocalErrorCode.ProcessResponseErrorHandlingFailed, exx);
}
var aex = new AMicroblogException(errorResp.ErrorMessage, wex) { IsRemoteError = true, ErrorCode = errorResp.ErrorCode };
var e = new ResponseErrorEventArgs(req.RequestUri.AbsoluteUri, aex, req.Method, req.ContentType);
Environment.NotifyResponseError(e);
aex.IsHandled = e.IsHandled;
throw aex;
}
return RetrieveResponse(resp);
}
