public void Execute()
{
string username;
if (Authorize(out username))
{
while (true)
{
Request request = this.Formatter.Deserialize(this.SocketStream) as Request;
Response response = new Response();
try
{
switch (request.RequestType)
{
case RequestType.Logout:
{
response.Message = "Successfully logged out.";
break;
}
case RequestType.RegisterToken:
{
int rights = this.UsersService.GetRights(username);
if ((rights & (int)Rights.CanRegisterToken) == 0)
{
throw new InvalidOperationException("You don't have rights to do that.");
}
string token;
if (this.TokenizationService.RegisterToken(request.Data as string, out token))
{
response.Data = token;
response.Message = "Successfully registered token.";
}
else
{
throw new ArgumentException("Invalid card number.");
}
break;
}
case RequestType.GetCardNumber:
{
int rights = this.UsersService.GetRights(username);
if ((rights & (int)Rights.CanGetCardNumber) == 0)
{
throw new InvalidOperationException("You don't have rights to do that.");
}
string cardNumber = this.TokenizationService.GetCardNumber(request.Data as string);
response.Data = cardNumber;
response.Message = "Successfully taken card number.";
break;
}
case RequestType.Terminate:
{
response.Message = "Successfully terminated.";
break;
}
default:
{
throw new InvalidOperationException(
string.Format("Operation {0} is not supported.", request.RequestType));
}
}
response.ResponseType = ResponseType.Success;
}
catch (Exception e)
{
response.ResponseType = ResponseType.Error;
response.Message = e.Message;
}
this.Formatter.Serialize(this.SocketStream, response);
if (request.RequestType == RequestType.Logout)
{
if (!Authorize(out username))
{
break;
}
}
if (request.RequestType == RequestType.Terminate)
{
break;
}
}
}
this.Dispose();
}
public bool Authorize(out string username)
{
username = null;
while (true)
{
Request request = this.Formatter.Deserialize(this.SocketStream) as Request;
Response response = new Response();
try
{
switch (request.RequestType)
{
case RequestType.Login:
{
var login = request.Data as Login;
this.UsersService.Login(login);
username = login.Username;
response.Message = "Successfully logged!";
break;
}
case RequestType.Terminate:
{
break;
}
}
response.ResponseType = ResponseType.Success;
}
catch (Exception e)
{
response.ResponseType = ResponseType.Error;
response.Message = e.Message;
}
this.Formatter.Serialize(this.SocketStream, response);
if (username != null)
{
break;
}
if (request.RequestType == RequestType.Terminate)
{
return false;
}
}
return true;
}
