/// <summary>
/// 收到会话发来数据
/// </summary>
/// <param name="session">会话</param>
/// <param name="buffer">收到的历史数据</param>
protected sealed override void OnReceive(TelnetSession session, ReceiveStream buffer)
{
while (true)
{
var request = TelnetRequest.Parse(buffer);
if (request == null)
{
break;
}
this.ExecTelnetRequest(session, request);
}
}
/// <summary>
/// 执行Telnet请求
/// </summary>
/// <param name="session">传话</param>
/// <param name="request">请求</param>
private void ExecTelnetRequest(TelnetSession session, TelnetRequest request)
{
var api = default(ApiAction);
if (this.apiList.TryGetValue(request.Command, out api) == false)
{
session.Send("not supported command ..");
}
else
{
// 在工作线程中执行业务代码，当前线程为Socket的IO线程
LimitedTask.Factory.StartNew(() => this.ExecApi(session, api, request.Argument));
}
}
/// <summary>
/// 从收到的数据流中解析请求体
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public static TelnetRequest Parse(ReceiveStream stream)
{
stream.Position = 0;
var index = stream.IndexOf(Crlf); // 以CRLF为结束标识
if (index < 0)
{
return(null);
}
var input = stream.ReadString(index, Encoding.ASCII);
stream.Clear(index + Crlf.Length);
if (string.IsNullOrWhiteSpace(input) == true) // 空内容
{
return(TelnetRequest.Parse(stream));
}
var items = input.Split(new string[] { " " }, 2, StringSplitOptions.RemoveEmptyEntries);
var cmd = items.First();
var arg = items.Length > 1 ? items.Last() : null;
return(new TelnetRequest(cmd, arg));
}
