public static String SortedParams(CtuRequest request)
{
String eventCode = request.eventCode;
String flag = request.flag;
Dictionary <string, string> data = request.data;
StringBuilder sb = new StringBuilder();
sb.Append(EVENT_CODE).Append(eventCode).Append(FLAG).Append(flag);
// var dicSort = from objDic in data orderby objDic.Value ascending select objDic;
Dictionary <string, string> dicSort = data.OrderBy(p => p.Key).ToDictionary(p => p.Key, o => o.Value);
foreach (KeyValuePair <string, string> kvp in dicSort)
{
if (kvp.Value == null)
{
sb.Append(kvp.Key).Append("null");
}
else
{
sb.Append(kvp.Key).Append(kvp.Value);
}
}
return(sb.ToString());
}
public static String Sign(String appSecret, CtuRequest ctuRequest)
{
String sortedParams = SortedParams(ctuRequest);
// MD5 md5Hash = MD5.Create();
return(GetMd5Hex(new StringBuilder(appSecret).Append(sortedParams)
.Append(appSecret).ToString()));
}
public CtuResponse CheckRisk(CtuRequest request)
{
String sign = SignUtil.Sign(appSecret, request);
String reqUrl = String.Format("{0}?appKey={1}&sign={2}&version={3}", url, appKey, sign, version);
JavaScriptSerializer js = new JavaScriptSerializer();
String reqJsonString = js.Serialize(request);
byte[] bytes = Encoding.UTF8.GetBytes(reqJsonString);
string postDataStr = Convert.ToBase64String(bytes);
HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(reqUrl);
httpWebRequest.Method = "POST";
httpWebRequest.ContentType = "text/html";
httpWebRequest.Timeout = this.connectTimeout;
try
{
StreamWriter writer = new StreamWriter(httpWebRequest.GetRequestStream(), Encoding.UTF8);
writer.Write(postDataStr);
writer.Flush();
writer.Close();
HttpWebResponse response = (HttpWebResponse)httpWebRequest.GetResponse();
Stream stream = response.GetResponseStream();
StreamReader streamReader = new StreamReader(stream, Encoding.GetEncoding("utf-8"));
string retString = streamReader.ReadToEnd();
streamReader.Close();
stream.Close();
response.Close();
CtuResponse ctuResponse = js.Deserialize <CtuResponse>(retString);
return(ctuResponse);
}
catch (Exception e) {
httpWebRequest.Abort();
CtuResponse response = new CtuResponse();
CtuResult result = new CtuResult();
result.RiskLevel = "ACCEPT";
Dictionary <string, Object> ExtraInfo = new Dictionary <string, object>();
ExtraInfo.Add("error", e.Message);
result.ExtraInfo = ExtraInfo;
response.result = result;
response.status = CtuResponseStatus.SERVICE_INTERNAL_ERROR.ToString();
return(response);
}
}
