public void DownloadFile(string remoteFilepath, string localFilepath)
{
if (ActiveMode)
{
var tcpSocket = PrepareActiveMode();
var buffer = new byte[1024];
Socket socket = null;
var downloadingTask = Task.Run(() =>
{
socket = tcpSocket.Accept();
using (var file = File.OpenWrite(localFilepath))
{
while (NetworkUtils.IsSocketConnected(socket))
{
var size = socket.Receive(buffer);
file.Write(buffer, 0, size);
}
}
socket.Disconnect(false);
socket.Shutdown(SocketShutdown.Both);
socket.Close();
});
var(code, response) = _commandSender.Retr(remoteFilepath);
if (code != 150)
{
throw new Exception(response);
}
(code, response) = _commandSender.GetNextResponse();
if (code != 226)
{
throw new Exception(response);
}
downloadingTask.Wait();
}
else
{
var tcpSocket = PreparePassiveMode();
// receive file on `tcpSocket`
var buffer = new byte[1024];
var downloadingTask = Task.Run(() =>
{
using (var file = File.OpenWrite(localFilepath))
{
while (NetworkUtils.IsSocketConnected(tcpSocket))
{
var size = tcpSocket.Receive(buffer);
file.Write(buffer, 0, size);
}
}
tcpSocket.Disconnect(false);
tcpSocket.Shutdown(SocketShutdown.Both);
tcpSocket.Close();
});
var(code, response) = _commandSender.Retr(remoteFilepath);
if (code != 150)
{
throw new Exception(response);
}
(code, response) = _commandSender.GetNextResponse();
if (code != 226)
{
throw new Exception(response);
}
downloadingTask.Wait();
}
}
public List <(bool IsDir, long Size, string LastModificationTime, string Name)> ListFiles(string filepath = null)
{
var fileList = "";
if (ActiveMode)
{
var tcpSocket = PrepareActiveMode();
var buffer = new byte[1024];
Socket socket = null;
var retrivalTask = Task.Run(() =>
{
socket = tcpSocket.Accept();
while (NetworkUtils.IsSocketConnected(socket))
{
var size = socket.Receive(buffer);
fileList += Encoding.ASCII.GetString(buffer, 0, size);
}
socket.Disconnect(false);
socket.Shutdown(SocketShutdown.Both);
socket.Close();
});
var(code, response) = _commandSender.List(filepath);
if (code != 150)
{
throw new Exception(response);
}
(code, response) = _commandSender.GetNextResponse();
if (code != 226)
{
throw new Exception(response);
}
tcpSocket.Close();
retrivalTask.Wait();
}
else
{
var tcpSocket = PreparePassiveMode();
// receive list on `tcpSocket`
var buffer = new byte[1024];
var retrivalTask = Task.Run(() =>
{
while (NetworkUtils.IsSocketConnected(tcpSocket))
{
var size = tcpSocket.Receive(buffer);
fileList += Encoding.ASCII.GetString(buffer, 0, size);
}
tcpSocket.Disconnect(false);
tcpSocket.Shutdown(SocketShutdown.Both);
tcpSocket.Close();
});
var(code, response) = _commandSender.List(filepath);
if (code != 150)
{
throw new Exception(response);
}
(code, response) = _commandSender.GetNextResponse();
if (code != 226)
{
throw new Exception(response);
}
retrivalTask.Wait();
}
var slices = fileList.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries).ToList();
var ret = new List <(bool IsDir, long Size, string LastModificationTime, string Name)>();
foreach (var slice in slices)
{
var match = Regex.Match(slice.Trim(),
@"^(.{10})\s+\d+\s+.*?\s+.*?\s+(\d+)\s+(.*?\s+.*?\s+.*?)\s+(.*)$");
var isDir = match.Groups[1].Value.StartsWith("d");
var size = long.Parse(match.Groups[2].Value);
var lastModificationTime = match.Groups[3].Value;
var name = match.Groups[4].Value;
ret.Add((isDir, size, lastModificationTime, name));
}
return(ret);
}
