简单登录 [英] Simple login
本文介绍了简单登录的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有这样的WCF服务:
I have a WCF service like this:
[ServiceContract( SessionMode=SessionMode.Required)]
public interface IService
{
[OperationContract(IsInitiating = true, IsTerminating = false)]
void login(string id);
[OperationContract(IsInitiating = false, IsTerminating = false)]
string getdata();
}
public class Service : IService
{
public void login(string hashedid)
{
if (username != "someusername" || password != "somepassword")
{
// can not get data
}
else
{
// can get data
}
}
public string getdata()
{
return "these are data";
}
}
如何编写方法登录名并创建客户端应用程序? 谢谢.
How can I write the method login and create the client application? Thanks you.
推荐答案
[ServiceContract( SessionMode=SessionMode.Required)]
public interface IService
{
[OperationContract(IsInitiating = true, IsTerminating = false)]
void login(string username, string password);
[OperationContract(IsInitiating = false, IsTerminating = false)]
string getdata();
}
public class Service : IService
{
// todo: make threadsafe!
public static List<Guid> authenticated = new List<Guid>();
public void login(string username, string password)
{
if (username == "correctUsername" || password == "correctPassword")
{
// user has given correct username/pasword
Guid currentSessionId = OperationContext.Current.SessionId;
// note: can throw Exception when calling login twice or more, check if item exists first
authenticated.Add(currentSessionId);
}
}
public string getdata()
{
Guid currentSessionId = OperationContext.Current.SessionId;
if (List.Contains(currentSessionId)
{
return "these are data";
}
return String.Empty;
}
}
您可以通过当前的会话ID来识别会话.用户正确验证身份后,您可以将此会话添加到已验证会话的列表中.
You can identify a session by the current Session id. After a user authenticates correctly you can add this session to the list of authenticated session.
注意:这只是一些伪代码.结束会话后,应该删除会话ID,我使用的列表不是线程安全的,但是我希望这可以帮助您朝正确的方向前进.
Mind: This is just some pseudo code. The session id should removed when the session is cloced, the list I use is not threadsafe,... But I hope this helps you get into the right direction.
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