/// <summary>
/// HttpWebResponse 처리
/// </summary>
/// <param name="response"></param>
private void responseProc(HttpWebResponse response)
{
Console.WriteLine("HttpRestClient Status: " + response.StatusCode + " - " + response.StatusDescription);
ResponseCode = (int)response.StatusCode;
ResponseMessage = response.StatusDescription;
ContentType = response.ContentType;
CharacterSet = response.CharacterSet;
//Console.WriteLine("ContentType: " + response.ContentType);
//Console.WriteLine("Charset: " + response.CharacterSet);
using (MemoryStream memStream = new MemoryStream())
using (Stream respStream = response.GetResponseStream())
{
respStream.CopyTo(memStream);
ResponseContent = memStream.ToArray();
}
// 복호화처리
//X-Encrypted 헤더 찾기
string encmode = response.GetResponseHeader("X-Encrypted");
if (UserEncryptMode && encmode != null && encmode.Equals("enabled"))
{
Console.WriteLine("Response data encrypted.");
byte[] b64dec = Convert.FromBase64String(Encoding.UTF8.GetString(ResponseContent));
ResponseContent = AESUtil.Decrypt(b64dec);
}
}
/// <summary>
/// HttpWebRequest 객체를 생성하고 초기화한다.
/// </summary>
/// <returns></returns>
private HttpWebRequest createWebRequest()
{
makeUriString();
Console.WriteLine("HttpRestClient " + Method + " " + RequestUri);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(RequestUri);
request.Method = Method;
request.ReadWriteTimeout = Timeout * 1000;
request.Timeout = Timeout * 1000;
request.Accept = ResponseDataFormat;
//request.Credentials = CredentialCache.DefaultCredentials;
request.UserAgent = "StockItemData Client";
//request.Referer = "";
//request.Headers.Set(HttpRequestHeader.AcceptEncoding, "gzip");
request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
// 인증정보가 다른 서버로 새어나가지 않도록 API 서버 주소와 비교한다.
string urlBase = Configure.server + "/" + Configure.apiVersion;
if (RequestUri.StartsWith(urlBase))
{
// 인증헤더 추가
string authorize = getAuthorizationString();
if (authorize != null && authorize.Length > 0)
{
// 인식하지 않음
// request.Credentials 을 사용할 것을 권장하는데 개발하기 번거로우니, X- 헤더로 대체함
//request.PreAuthenticate = true;
//request.Headers.Add("Authorization", authorize);
request.Headers.Add("X-Authorization", authorize);
}
// 암호화 헤더 추가
if (UserEncryptMode)
{
// 암호화헤더 추가
byte[] key = AESUtil.createRandomKeys(AESUtil.AES_BITS_256);
AESUtil.Key = key;
string rsaEncodedKey = "AES/256/CBC," + RSAEncrypt.Encrypt(key);
Console.WriteLine("X-Encrypt-Key:" + rsaEncodedKey);
request.Headers.Add("X-Encrypt-Key", rsaEncodedKey);
}
}
else
{
Console.WriteLine("요청 주소는 API서버가 아님 [" + RequestUri + "]");
// 암호화기능 disable
UserEncryptMode = false;
}
return(request);
}
/// <summary>
/// 서버와 통신
/// </summary>
public bool doWork()
{
if (isWorked)
{
return(isSuccess());
}
isWorked = true;
try
{
if (Configure.server.Length == 0)
{
ResponseMessage = "Configuration error!";
return(isSuccess());
}
request = createWebRequest();
// POST or PUT
if (Method.Equals(REST_METHOD_CREATE) || Method.Equals(REST_METHOD_UPDATE))
{
// 암호화처리
if (RequestContent.Length > 0 && UserEncryptMode)
{
byte[] aesenc = AESUtil.Encrypt(RequestContent);
RequestContent = Encoding.UTF8.GetBytes(Convert.ToBase64String(aesenc));
}
request.ContentType = RequestDataFormat; //; charset=UTF-8
request.ContentLength = RequestContent.Length;
if (RequestContent.Length > 0)
{
using (Stream reqStream = request.GetRequestStream())
{
reqStream.Write(RequestContent, 0, RequestContent.Length);
}
}
}
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
ResponseCode = (int)WebExceptionStatus.Success;
if (response != null)
{
responseProc(response);
}
else
{
Console.WriteLine("No response.");
}
}
}
catch (UriFormatException ufe)
{
Console.WriteLine("UriFormatException Message " + ufe.Message);
Console.WriteLine("Uri : " + RequestUri);
ResponseMessage = "UriFormatException: " + ufe.Message + " " + RequestUri;
}
catch (WebException we)
{
Console.WriteLine("WebException Message " + we.Message);
if (we.Status == WebExceptionStatus.ProtocolError)
{
using (HttpWebResponse response = (HttpWebResponse)we.Response)
{
if (response != null)
{
responseProc(response);
Exception basee = we.GetBaseException();
if (basee != null)
{
ResponseMessage += ": " + basee.Message;
}
else
{
ResponseMessage += ": " + we.Message;
}
}
else
{
Console.WriteLine("No response.");
ResponseMessage = we.Status.ToString() + ": " + we.Message;
}
}
}
else
{
ResponseCode = (int)we.Status;
Exception basee = we.GetBaseException();
if (basee != null)
{
ResponseMessage = we.Status.ToString() + ": " + basee.Message;
}
else
{
ResponseMessage = we.Status.ToString() + ": " + we.Message;
}
}
Console.WriteLine("RespCode " + ResponseCode);
Console.WriteLine("RespMesg " + ResponseMessage);
}
return(isSuccess());
}
