/// <summary>
/// 断开连接
/// </summary>
/// <returns>返回是否成功</returns>
public bool Close()
{
if (State != Pop3STATE.UNCONNECTED)
{
SendCommand("QUIT", StrmWtr);
string ret = ReceiveResponse(StrmRdr);
StrmRdr.Close();
client.Close();
this.State = Pop3STATE.UNCONNECTED;
return(true);
}
return(false);
}
/// <summary>
/// 登录
/// </summary>
/// <returns>返回是否登录成功</returns>
public bool Login(User user)
{
//连接
this.User = user;
try
{
client = new TcpClient(user.POP3Server, user.POP3Port);
StrmWtr = client.GetStream();
StrmRdr = new StreamReader(client.GetStream());
}
catch (Exception e)
{
e.ToString();
this.State = Pop3STATE.UNCONNECTED;
return(false);
}
//连接返回的返回结果
string ret = ReceiveResponse(StrmRdr);
if (ret.IndexOf("+OK") == 0) //成功建立连接
{
//StrmWtr.Close();
//client.Close();
//验证用户名
SendCommand("USER " + User.Username, StrmWtr);
ret = ReceiveResponse(StrmRdr);
if (ret.IndexOf("+OK") == 0)
{
//验证密码
SendCommand("PASS " + User.Password, StrmWtr);
ret = ReceiveResponse(StrmRdr);
if (ret.IndexOf("+OK") == 0)
{
//验证成功，进入连接状态
State = Pop3STATE.CONNECTED;
return(true);
}
}
}
this.State = Pop3STATE.UNCONNECTED;
return(false);
}
} //当前连接状态
public POP3Client(User user)
{
User = user;
State = Pop3STATE.UNCONNECTED;
}
