private void PASS(FtpCommand ftpCmd)
{
if (string.IsNullOrEmpty(UserName))
{
throw new NeedUserInfoException();
}
else
{
if (ftpCmd.Parameters.Count == 0)
{
throw new SyntaxException();
}
Password = ftpCmd.Parameters[0];
if (ftpServer.ValidateUser(this))
{
if (user.ConnCount + 1 > user.MaxConnectionCount)
{
Response("421 Too many users logged in for this account.");
this.user = null;
}
else
{
Statue = FtpSessionStatue.Wait;
user.ConnCount++;
Response("230 User successfully logged in.");
}
}
else
{
throw new LoginFailException();
}
}
}
public FtpServer()
{
EnableCheckHeartBeat = true;
//1分钟内客户端没有反应，就踢出客户端
HeartBeatPeriod = 60000;
//默认FTP监听端口
Port = 12001;
//FTP协议使用的命令分隔符号
NewLines = new string[] { "\r\n" };
WelcomeMessage = "220 Midapex Village FTP Server V2.1 ready.";
ByeMessage = "Bye.";
//默认使用中文字符集合来操作，如果是其他的语言，请重新指定。
Encoding = Encoding.GetEncoding("utf-8");
//默认允许匿名登陆
AllowAnonymous = true;
//默认设置匿名用户的信息
anonymousUser = new FtpUser("anonymous");
}
/// <summary>
/// 是否是一个合法的用户
/// </summary>
/// <param name="session"></param>
/// <returns></returns>
protected internal virtual bool ValidateUser(FtpSession session)
{
if (AllowAnonymous && session.UserName == AnonymousUser.UserName)
{
session.user = AnonymousUser;
return(true);
}
try
{
FtpUser user = Users[session.UserName];
if (user.Password == session.Password)
{
session.user = user;
return(true);
}
else
{
return(false);
}
}
catch (KeyNotFoundException)
{
return(false);
}
}
/// <summary>
/// 删除一个用户
/// </summary>
/// <param name="user"></param>
public void RemoveUser(FtpUser user)
{
Users.Remove(user.UserName);
}
/// <summary>
/// 添加一个用户
/// </summary>
/// <param name="user"></param>
public void AddUser(FtpUser user)
{
Users.Add(user.UserName, user);
}