public static string CreateToken(string IPAddress, string Token, long ticks)
{
string hashLeft = string.Empty;
string hashRight = string.Empty;
string encry1 = string.Empty;
string encry2 = string.Empty;
try
{
string key = Convert.ToString(ConfigurationManager.AppSettings["keyValue"]);
string IV = Convert.ToString(ConfigurationManager.AppSettings["IVValue"]);
string UniqueID = Convert.ToString(ConfigurationManager.AppSettings["UniqueID"]);
// [encry1] CLientIDToken : IPAddress : ticks
encry1 = string.Join(":", new string[] { Token, IPAddress, ticks.ToString() });
// [encry2] UniqueID + ticks
hashLeft = Convert.ToBase64String(TripleDESAlgorithm.Encryption(encry1, key, IV));
hashRight = string.Join(":", new string[] { UniqueID, ticks.ToString() });
// [CLientIDToken : IPAddress : ticks + UniqueID + ticks]
var basestring = Convert.ToBase64String(Encoding.UTF8.GetBytes(string.Join(":", hashRight, hashLeft)));
return(basestring);
}
catch (Exception)
{
throw;
}
}
void DownloadString_Callback(object sender, DownloadStringCompletedEventArgs e)
{
if (e.Error != null)
{
#region ErrorCode
object objException = e.Error.GetBaseException();
Type _type = typeof(WebException);
if (_type != null)
{
WebException objErr = (WebException)e.Error.GetBaseException();
WebResponse rsp = objErr.Response;
using (Stream respStream = rsp.GetResponseStream())
{
StreamReader reader = new StreamReader(respStream);
string text = reader.ReadToEnd();
}
}
else
{
Exception objErr = (Exception)e.Error.GetBaseException();
}
#endregion
}
else if (e.Result != null || !string.IsNullOrEmpty(e.Result))
{
string finalData = JToken.Parse(e.Result).ToString();
string data = TripleDESAlgorithm.Decryption(finalData, keyValue, IVValue);
Employee AccountDetail = JsonConvert.DeserializeObject <Employee>(data);
}
}
public static string GetAPIKey()
{
string hashLeft = string.Empty;
string hashRight = string.Empty;
string encry1 = string.Empty;
string ticks;
try
{
APIKeyModel _Model = new APIKeyModel();
ticks = DateTime.UtcNow.Ticks.ToString();
// [encry1] CLientIDToken : IPAddress : ticks
encry1 = string.Join(":", new string[] { _Model.Token, _Model.IPAddress, ticks });
// [encry2] UniqueID + ticks
hashLeft = Convert.ToBase64String(TripleDESAlgorithm.Encryption(encry1, _Model.EncryKey, _Model.IVKey));
hashRight = string.Join(":", new string[] { _Model.UniqueID, ticks.ToString() });
// [CLientIDToken : IPAddress : ticks + UniqueID + ticks]
var basestring = Convert.ToBase64String(Encoding.UTF8.GetBytes(string.Join(":", hashRight, hashLeft)));
return(basestring);
}
catch (Exception)
{
throw;
}
}
public HttpResponseMessage Get(string Id)
{
if (Id != null)
{
int _Id = Convert.ToInt32(Id);
//Getting Employee Data from Database According to Id Passed.
var Response = _EmployeeRepository.EmployeeDetailsByEmployeeNo(_Id);
//Serializing Object which we have got from Database.
string SerializeData = JsonConvert.SerializeObject(Response);
//Encrypting Serialized Object.
byte[] buffer = TripleDESAlgorithm.Encryption(SerializeData, ShareKeys.keyValue, ShareKeys.IVValue);
//Sending Response.
return(Request.CreateResponse(HttpStatusCode.OK, Convert.ToBase64String(buffer)));
}
else
{
return(Request.CreateErrorResponse(HttpStatusCode.NotFound, "Employee ID not found"));
}
}
protected override bool IsAuthorized(HttpActionContext actionContext)
{
StringBuilder sb = new StringBuilder(1024);
try
{
IEnumerable <string> tokenHeaders;
if (actionContext.Request.Headers.TryGetValues("APIKEY", out tokenHeaders))
{
string tokens = tokenHeaders.First();
string key1 = Encoding.UTF8.GetString(Convert.FromBase64String(tokens));
string[] Data = key1.Split(new char[] { ':' });
if (tokens != null && Data != null)
{
string encry1 = Data[0]; //UniqueID
string encry2 = Data[1]; //DateTime with Ticks
string encry3 = Data[2]; //ClientToken + IPAddress +Ticks
if (_IRegistration.GetEncryptionDecryptionKeys(encry1) == null)
{
return(false);
}
else
{
var KeysValues = _IRegistration.GetEncryptionDecryptionKeys(encry1);
//Hash Decryption
string DecryHash2 = TripleDESAlgorithm.Decryption(encry3, KeysValues.EncryKey, KeysValues.IVKey);
string[] Key2 = DecryHash2.Split(new char[] { ':' });
// 1)ClientToken
string ClientToken = Key2[0];
// 2)IPAddress
string IPAddress = Key2[1];
// 3)Ticks
long ticks = long.Parse(Key2[2]);
//ReValidating token Exists in Database or not
if (_IRegistration.ValidateToken(ClientToken.ToLower()) == null)
{
return(false);
}
else
{
var Returndata = _IRegistration.ValidateToken(ClientToken.ToLower());
ShareKeys.IVValue = Returndata.IVKey;
ShareKeys.keyValue = Returndata.EncryKey;
DateTime currentdate = new DateTime(ticks);
//Comparing Current Date with date sent
bool timeExpired = Math.Abs((DateTime.UtcNow - currentdate).TotalMinutes) > 10;
if (!timeExpired)
{
if (string.Equals(ClientToken.ToLower(), Returndata.Token.ToLower(), comparisonType: StringComparison.InvariantCulture) == true)
{
return(true);
}
else
{
return(false);
}
}
else
{
return(false);
}
}
}
}
else
{
return(false);
}
}
else
{
return(false);
}
}
catch (Exception ex)
{
throw;
}
}
public static string Decryption(string CypherText, APIKeyModel Model)
{
return(TripleDESAlgorithm.Decryption(CypherText, Model.EncryKey, Model.IVKey));
}
public static string Decryption(string CypherText)
{
APIKeyModel _Model = new APIKeyModel();
return(TripleDESAlgorithm.Decryption(CypherText, _Model.EncryKey, _Model.IVKey));
}
public static byte[] Encryption(string PlainText, APIKeyModel Model)
{
return(TripleDESAlgorithm.Encryption(PlainText, Model.EncryKey, Model.IVKey));
}
public static byte[] Encryption(string PlainText)
{
APIKeyModel _Model = new APIKeyModel();
return(TripleDESAlgorithm.Encryption(PlainText, _Model.EncryKey, _Model.IVKey));
}
