private void handleErrorWebResponse(HttpWebResponse pWebResp, CompletionHandler pCompletionHandler, Exception pExp)
{
DateTime startTime = DateTime.Now;
int statusCode = ResponseInfo.NetworkError;
//parse self defined code from the error message
string expMsg = pExp.Message;
int indexStart = expMsg.IndexOf("(");
if (indexStart != -1)
{
int indexEnd = expMsg.IndexOf(")", indexStart);
if (indexStart != -1 && indexEnd != -1)
{
string statusCodeStr = expMsg.Substring(indexStart + 1, indexEnd - indexStart - 1);
try
{
statusCode = Convert.ToInt32(statusCodeStr);
}
catch (Exception) { }
}
}
//check for exception
string reqId = null;
string xlog = null;
string ip = null;
string xvia = null;
string error = null;
string host = null;
string respData = null;
int contentLength = -1;
bool recvInvalid = false;
if (pWebResp != null)
{
if (pWebResp.Headers != null)
{
WebHeaderCollection respHeaders = pWebResp.Headers;
foreach (string headerName in respHeaders.AllKeys)
{
if (headerName.Equals("X-Reqid"))
{
reqId = respHeaders[headerName].ToString();
}
else if (headerName.Equals("X-Log"))
{
xlog = respHeaders[headerName].ToString();
}
else if (headerName.Equals("X-Via"))
{
xvia = respHeaders[headerName].ToString();
}
else if (headerName.Equals("X-Px"))
{
xvia = respHeaders[headerName].ToString();
}
else if (headerName.Equals("Fw-Via"))
{
xvia = respHeaders[headerName].ToString();
}
else if (headerName.Equals("Host"))
{
host = respHeaders[headerName].ToString();
}
else if (headerName.Equals("Content-Length"))
{
contentLength = int.Parse(respHeaders[headerName].ToString());
}
}
}
using (StreamReader respStream = new StreamReader(pWebResp.GetResponseStream()))
{
respData = respStream.ReadToEnd();
if (contentLength > 0)
{
if (respData.Length != contentLength)
{
recvInvalid = true;
}
}
}
try
{
/////////////////////////////////////////////////////////////
// 改进Response的error解析, 根据HttpStatusCode
// @fengyh 2016-08-17 18:29
/////////////////////////////////////////////////////////////
if (statusCode != (int)HCODE.OK)
{
bool isOtherCode = HttpCode.GetErrorMessage(statusCode, out error);
if (isOtherCode)
{
Dictionary <string, string> errorDict = JsonConvert.DeserializeObject <Dictionary <string, string> >(respData);
error = errorDict["error"];
}
}
}
catch (Exception) { }
if (recvInvalid)
{
statusCode = -1;
string err = string.Format("response-recv is not complete RECV={0},TOTAL={1} {2}", respData.Length, contentLength, error);
Console.WriteLine(err);
error = err;
}
pWebResp.Close();
}
else
{
error = pExp.Message;
}
double duration = DateTime.Now.Subtract(startTime).TotalSeconds;
ResponseInfo respInfo = new ResponseInfo(statusCode, reqId, xlog, xvia, host, ip, duration, error);
if (pCompletionHandler != null)
{
pCompletionHandler(respInfo, respData);
}
}