Question

美好的一天，

我编写了一个Windows服务程序，让我自己检查某些服务是否在远程计算机上运行。程序每分钟触发一次，然后在服务状态发生变化时提示我。

我使用此代码进行模拟登录

public class Network
{
    public class SoddingNetworkAuth : IDisposable
    {
        [DllImport("advapi32.dll", SetLastError = true)]
        private static extern bool LogonUser(string lpszUsername, string lpszDomain, string lpszPassword, int dwLogonType, int dwLogonProvider, out IntPtr phToken);
        [DllImport("kernel32", SetLastError = true)]
        private static extern bool CloseHandle(IntPtr hObject);
        private IntPtr userHandle = IntPtr.Zero;
        private WindowsImpersonationContext impersonationContext;
        public SoddingNetworkAuth(string user, string domain, string password)
        {
            if (!string.IsNullOrEmpty(user))
            {
                // Call LogonUser to get a token for the user  
                bool loggedOn = LogonUser(user, domain, password,
                                9 /*(int)LogonType.LOGON32_LOGON_NEW_CREDENTIALS*/,
                                3 /*(int)LogonProvider.LOGON32_PROVIDER_WINNT50*/,
                out userHandle);
                if (!loggedOn)
                    throw new Win32Exception(Marshal.GetLastWin32Error());
                // Begin impersonating the user  
                impersonationContext = WindowsIdentity.Impersonate(userHandle);
            }
        }
        public void Dispose()
        {
            if (userHandle != IntPtr.Zero)
                CloseHandle(userHandle);
            if (impersonationContext != null)
                impersonationContext.Undo();
        }
    }
}

然后我相应地使用了这个结果。

我遇到的问题是，每次运行时，模拟都会失败。所以，如果我有5次运行，结果将如下：

result:Running
result:Cannot open Service Control Manager on computer [Computer Name]
result:Running
result:Cannot open Service Control Manager on computer [Computer Name]
result:Running.

我正在使用域服务帐户登录（如果需要更改登录，可以更改）登录到有权访问服务控制管理器的计算机。

using (new Impersonation.Network.SoddingNetworkAuth(userName, domain, configuration.password))
{
      var serviceController = new ServiceController(configuration.serviceName, configuration.IPaddress);
      if (serviceController.Status == ServiceControllerStatus.Running)
      {
        isRunning = true;
      }
}

关于为什么每次运行都失败的想法？

Answer 1

对于那些感兴趣的人来说，rror是处理数据的庄园。请参阅下面我对代码所做的更改以解决问题。

try
    {
      if (!string.IsNullOrEmpty(user))
      {
        // Call LogonUser to get a token for the user  
        bool loggedOn = LogonUser(user, domain, password,
                        9 /*(int)LogonType.LOGON32_LOGON_NEW_CREDENTIALS*/,
                        3 /*(int)LogonProvider.LOGON32_PROVIDER_WINNT50*/,
        out userHandle);
        if (!loggedOn)
        {
          if (userHandle != IntPtr.Zero)
          {
            CloseHandle(userHandle);
          }
          throw new Win32Exception(Marshal.GetLastWin32Error());

        }
        // Begin impersonating the user  
        impersonationContext = WindowsIdentity.Impersonate(userHandle);
      }
      if (userHandle != IntPtr.Zero)
      {
        CloseHandle(userHandle);
      }
      disposed = false;
    }
    catch
    {
    }
  }
  public void Dispose()
  {
    try
    {
      //Dispose of unmanaged resources.
      Dispose(true);
      // Suppress finalization.
      GC.SuppressFinalize(this);
    }
    catch
    {
    }

  }
  protected virtual void Dispose(bool Disposing)
  {
    // Check to see if Dispose has already been called.
    try
    {
      if (disposed)
        return;

      if (Disposing)
      {
        if (userHandle != IntPtr.Zero)
        {
          CloseHandle(userHandle);
        }

        if (impersonationContext != null)
        {
          //impersonationContext.Undo();
          impersonationContext.Dispose();
        }
      }
      disposed = true;
    }
    catch
    {
    }

  }

我在主类中调用数据的庄园改为：

IntPtr userHandle = IntPtr.Zero;
    bool loggedOn = LogonUser(
userName,
domain,
password,
9,
3,
out userHandle);
    if (!loggedOn)
      throw new Win32Exception(Marshal.GetLastWin32Error());

    WindowsImpersonationContext impersonationContext = WindowsIdentity.Impersonate(userHandle);

          using (var serviceController = new ServiceController(serviceName, IPaddress))
          {
            //code goes here
          }
          serviceController.Dispose();
          if (userHandle != IntPtr.Zero)
            CloseHandle(userHandle);

          if (impersonationContext != null)
            impersonationContext.Undo();

每次运行时，模拟在成功和失败之间交替

1 个答案: