static public List <CQFtpRequest> Parse(string src)
{
List <CQFtpRequest> reqs = new List <CQFtpRequest>();
string[] s1 = src.Split(new string[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < s1.Length; i++)
{
int index = s1[i].IndexOf(" ");
if (index > 0)
{
CQFtpRequest req = new CQFtpRequest()
{
OriginCommand = s1[i]
};
req.Command = s1[i].Substring(0, index);
req.Content = s1[i].Remove(0, index);
reqs.Add(req);
}
else
{
CQFtpRequest req = new CQFtpRequest()
{
Command = src.Replace("\r\n", ""), Content = "", OriginCommand = s1[i]
};
reqs.Add(req);
}
//string[] s2 = s1[i].Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries);
//if(s2.Length == 2)
//{
// CQFtpRequest req = new CQFtpRequest() { Command = s2[0], Content = s2[1], OriginCommand=s1[i] };
// reqs.Add(req);
//}
//else
//{
// CQFtpRequest req = new CQFtpRequest() { Command = src.Replace("\r\n", ""), Content = "", OriginCommand = src };
// reqs.Add(req);
//}
}
return(reqs);
}
List <CQFtpResponse> Process(CQFtpRequest req)
{
List <CQFtpResponse> resps = new List <CQFtpResponse>();
CQFtpResponse resp = new CQFtpResponse();
this.Dispatcher.Invoke(new Action(() =>
{
this.m_MainUI.HandSharks.Add(req.OriginCommand);
System.Diagnostics.Trace.WriteLine(req.OriginCommand);
}));
switch (req.Command.ToUpperInvariant())
{
case "USER":
{
resp.Status = 331;
resp.Content = "Guest login ok, send your complete e-mail address as password";
resps.Add(resp);
}
break;
case "PASS":
{
resp.Status = 230;
resp.Content = "Guest login ok, access restrictions apply.";
resps.Add(resp);
}
break;
case "SYST":
{
resp.Status = 215;
resp.Content = "Windows.";
resps.Add(resp);
}
break;
case "PWD":
{
resp.Status = 257;
resp.Content = string.Format("\"{0}\" is the current directory."
, this.m_CurrentPath);
resps.Add(resp);
}
break;
case "TYPE":
{
resp.Status = 200;
resp.Content = "Type set.";
resps.Add(resp);
}
break;
case "SIZE":
{
string path = string.Format("{0}{1}"
, this.m_Root
, req.Content);
if (File.Exists(path) == true)
{
resp.Status = 213;
resp.Content = new FileInfo(path).Length.ToString();
resps.Add(resp);
}
else
{
resp.Status = 550;
resp.Content = "File not found";
resps.Add(resp);
}
}
break;
case "CWD":
{
string path = string.Format("{0}{1}"
, this.m_Root
, req.Content);
if (Directory.Exists(path) == false)
{
//550 CWD failed. "/WMICodeCreator.cs": directory not found.
resp.Status = 550;
resp.Content = string.Format("CWD failed \"{0}\": directory not found."
, req.Content);
resps.Add(resp);
}
else
{
this.m_CurrentPath = req.Content;
resp.Status = 250;
resp.Content = "CWD command successful.";
resps.Add(resp);
}
}
break;
case "PASV":
{
resp.Status = 227;
string ip = "127,0,0,1";
int port = 3335 + DateTime.Now.Millisecond / 10;
if (this.m_SocketData != null)
{
this.m_SocketData.Close();
this.m_SocketData = null;
}
this.m_SocketData = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
this.m_SocketData.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
this.m_SocketData.Bind(new IPEndPoint(IPAddress.Parse("127.0.0.1"), port));
this.m_SocketData.Listen(10);
Task.Factory.StartNew(() =>
{
this.m_Socket_PASV = this.m_SocketData.Accept();
});
string address = string.Format("{0},{1},{2}"
, ip
, port / 256
, port % 256);
resp.Content = string.Format("Entering Passive Mode ({0})"
, address);
resps.Add(resp);
}
break;
case "LIST":
case "LS":
{
string path = string.Format("{0}{1}"
, this.m_Root
, this.m_CurrentPath);
resp.Status = 150;
resp.Content = "Opening data channel for directory listing of \"/\"";
resps.Add(resp);
resp = new CQFtpResponse();
StringBuilder strb = new StringBuilder();
DirectoryInfo ddr = new DirectoryInfo(path);
DirectoryInfo[] dirs = ddr.GetDirectories();
foreach (var oo in dirs)
{
strb.Append(string.Format("drwxr-xr-x 1 ftp ftp 0 {0} {1} {2}:{3} {4}\r\n"
, System.Globalization.CultureInfo.InvariantCulture.DateTimeFormat.GetAbbreviatedMonthName(oo.CreationTimeUtc.Month)
, oo.CreationTimeUtc.Day
, oo.CreationTimeUtc.Hour
, oo.CreationTimeUtc.Minute
, oo.Name));
}
FileInfo[] files = ddr.GetFiles();
foreach (var oo in files)
{
strb.Append(string.Format("-r--r--r-- 1 ftp ftp {0} {1} {2} {3}:{4} {5}\r\n"
, oo.Length
, System.Globalization.CultureInfo.InvariantCulture.DateTimeFormat.GetAbbreviatedMonthName(oo.CreationTimeUtc.Month)
, oo.CreationTimeUtc.Day
, oo.CreationTimeUtc.Hour
, oo.CreationTimeUtc.Minute
, oo.Name));
}
resp.Content = strb.ToString();
resps.Add(resp);
resp = new CQFtpResponse();
resp.Status = 226;
resp.Content = "Successfully transferred \"/\"";
resps.Add(resp);
}
break;
case "QUIT":
{
resp.Status = 221;
resp.Content = "Goodbye";
resps.Add(resp);
}
break;
case "OPTS":
{
resp.Status = 202;
resp.Content = "UTF8 mode is always enabled. No need to send this command.";
resps.Add(resp);
}
break;
case "RETR":
{
string path = string.Format("{0}{1}"
, this.m_Root
, req.Content);
resp.Status = 150;
resp.Content = "Opening data channel for directory listing of \"/\"";
resps.Add(resp);
resp = new CQFtpResponse();
resp.Download = new FileStream(path, FileMode.Open);
resps.Add(resp);
resp = new CQFtpResponse();
resp.Status = 226;
resp.Content = "Successfully transferred \"/\"";
resps.Add(resp);
}
break;
default:
{
resp.Status = 502;
resp.Content = "No support.";
resps.Add(resp);
}
break;
}
this.Dispatcher.Invoke(new Action(() =>
{
foreach (var oo in resps)
{
this.m_MainUI.HandSharks.Add(oo.ToString());
System.Diagnostics.Trace.WriteLine(oo.ToString());
}
}));
return(resps);
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
if (this.m_MainUI == null)
{
//this.FtpClient();
this.DataContext = this.m_MainUI = new CQMainUI();
Task.Factory.StartNew(() =>
{
this.m_SocketServer = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
this.m_SocketServer.Bind(new IPEndPoint(IPAddress.Parse("127.0.0.1"), 3333));
this.m_SocketServer.Listen(10);
while (true)
{
Socket client = this.m_SocketServer.Accept();
client.Send(Encoding.UTF8.GetBytes("220 QQ FTP reade.\r\n"));
byte[] buf = new byte[client.ReceiveBufferSize];
while (true)
{
Array.Clear(buf, 0, buf.Length);
int recv_len = client.Receive(buf);
if (recv_len == 0)
{
break;
}
string str = Encoding.UTF8.GetString(buf, 0, recv_len);
List <CQFtpRequest> reqs = CQFtpRequest.Parse(str);
foreach (var req in reqs)
{
List <CQFtpResponse> resps = this.Process(req);
for (int i = 0; i < resps.Count; i++)
{
if (resps[i].Status > 0)
{
int send_len = client.Send(Encoding.UTF8.GetBytes(string.Format("{0}\r\n", resps[i].ToString())));
}
else
{
if (this.m_Socket_PASV != null)
{
if (string.IsNullOrEmpty(resps[i].Content) == false)
{
int send_len = this.m_Socket_PASV.Send(Encoding.UTF8.GetBytes(string.Format("{0}\r\n", resps[i].ToString())));
}
if (resps[i].Download != null)
{
byte[] send_buf = new byte[client.SendBufferSize];
while (true)
{
int read_len = resps[i].Download.Read(send_buf, 0, send_buf.Length);
if (read_len > 0)
{
this.m_Socket_PASV.Send(send_buf, read_len, SocketFlags.None);
}
if (read_len != send_buf.Length)
{
break;
}
}
}
this.m_Socket_PASV.Close();
this.m_Socket_PASV = null;
}
}
}
}
if (reqs.Any(x => x.Command.ToUpperInvariant() == "QUIT") == true)
{
client.Shutdown(SocketShutdown.Both);
client.Close();
break;
}
}
}
}, TaskCreationOptions.LongRunning);
}
}
