private FtpDataStream GetStream(long offset, TransferDirection dir)
{
m_parent.CheckSessionCurrentDirectory();
FtpSessionConnected Session = m_parent.Session;
if (offset != 0)
{
Session.ControlChannel.REST(offset);
}
FtpDataStream stream = Session.ControlChannel.GetPassiveDataStream(dir);
try
{
if (dir == TransferDirection.Download)
{
Session.ControlChannel.RETR(m_name);
}
else
{
Session.ControlChannel.STOR(m_name);
}
}
catch
{
stream.Close();
throw;
}
return(stream);
}
/// <summary>
/// Creates a new zero-length remote file in directory.
/// </summary>
/// <param name="newFileName">New remote file name.</param>
/// <returns>File reference to new zero-length remote file.</returns>
public FtpFile CreateFile(string newFileName)
{
FtpDataStream stream = CreateFileStream(newFileName);
stream.Close();
return(m_files[newFileName]);
}
internal Queue List(bool passive)
{
const string errorMsgListing = "Error when listing server directory.";
try
{
Type(TransferMode.Ascii);
Queue lineQueue = new Queue();
using (FtpDataStream dataStream = GetDataStream())
using (StreamReader lineReader = new StreamReader(dataStream, Encoding.Default, true, 1024, true))
{
Command("LIST");
if (m_lastResponse.Code != FtpResponse.DataChannelOpenedTransferStart && m_lastResponse.Code != FtpResponse.FileOkBeginOpenDataChannel)
{
dataStream.Close(true);
throw new FtpCommandException(errorMsgListing, m_lastResponse);
}
string line = lineReader.ReadLine();
while ((object)line != null)
{
lineQueue.Enqueue(line);
line = lineReader.ReadLine();
}
}
if (m_lastResponse.Code != FtpResponse.ClosingDataChannel)
{
throw new FtpCommandException(errorMsgListing, m_lastResponse);
}
return(lineQueue);
}
catch (IOException ie)
{
throw new Exception(errorMsgListing, ie);
}
catch (SocketException se)
{
throw new Exception(errorMsgListing, se);
}
}
/// <summary>
/// Creates a new data stream for remote file in directory.
/// </summary>
/// <param name="newFileName">New remote file name.</param>
/// <returns>Output data stream for new remote file.</returns>
public FtpOutputDataStream CreateFileStream(string newFileName)
{
InitHashtable();
FtpDataStream stream = m_session.ControlChannel.GetPassiveDataStream(TransferDirection.Upload);
try
{
m_session.ControlChannel.STOR(newFileName);
FtpFile newFile = new FtpFile(this, newFileName);
m_files[newFileName] = newFile;
return((FtpOutputDataStream)stream);
}
catch
{
stream.Close();
throw;
}
}
