public Int64 Download(String _remoteFile, String _localFile, FTP.TransferModeType _transferModeType)
{
FileStream fileStream = new FileStream(_localFile, FileMode.Create);
TcpListener listner = null;
TcpClient client = null;
NetworkStream networkStream = null;
List<FTPResponseMessage> responseMessages = new List<FTPResponseMessage>();
Byte[] buffer = new Byte[this.BlockSize];
Int32 bytes = new Int32();
Int64 totalBytes = new Int32();
this.lockTcpClient();
this.setTransferType(_transferModeType);
if (this.ConnectionMode == FTP.ConnectionMode.ACTIVE)
{
listner = this.createDataListner();
listner.Start();
}
else
{
client = this.createDataClient();
}
responseMessages = this.sendCommand(FTPCommand.RETRIEVE, _remoteFile);
if (responseMessages[0].ResponseCode != FTPServerResponseCode.OpenedNewConnection
&& responseMessages[0].ResponseCode != FTPServerResponseCode.DataConnectionAlreadyOpen
)
{
throw new Exception(responseMessages[0].Message);
}
if (this.ConnectionMode == FTP.ConnectionMode.ACTIVE)
{
client = listner.AcceptTcpClient();
}
networkStream = client.GetStream();
do
{
bytes = (Int32)networkStream.Read(buffer, 0, this.BlockSize);
totalBytes += bytes;
fileStream.Write(buffer, 0, bytes);
}
while (bytes != 0);
networkStream.Close();
client.Close();
if (this.ConnectionMode == FTP.ConnectionMode.ACTIVE)
{
listner.Stop();
}
FTPResponseMessage errorMessage;
if (responseMessages.Count == 1)
{
responseMessages = this.readResponse();
errorMessage = responseMessages[0];
}
else
{
errorMessage = responseMessages[1];
}
if (errorMessage.ResponseCode != FTPServerResponseCode.DataConnectionClosing)
{
throw new Exception(errorMessage.Message);
}
fileStream.Close();
this.unlockTcpClient();
return totalBytes;
}
/// <summary>
/// Set the type of transfer
/// </summary>
/// <param name="_type">The transfer type</param>
/// <returns>Returns a list of FTPResponseMessages</returns>
private List<FTPResponseMessage> setTransferType(FTP.TransferModeType _type)
{
// Initializatoin
ArrayList tempMessageList = new ArrayList();
List<FTPResponseMessage> responseMessages = new List<FTPResponseMessage>();
// lock the tcpClient
this.lockTcpClient();
switch (_type)
{
case FTP.TransferModeType.ASCII:
// set transferType to ASCII
responseMessages = this.sendCommand(FTPCommand.REPRESENTATION_TYPE, FTP.TransferModeTypeASCII);
break;
case FTP.TransferModeType.BINARY:
// set transferType fo BINARY
responseMessages = this.sendCommand(FTPCommand.REPRESENTATION_TYPE, FTP.TransferModeTypeBinary);
break;
default:
// unlock the tcpClient
this.unlockTcpClient();
// return a empty list
return responseMessages;
}
if (responseMessages == null)
return null;
if (responseMessages.Count == 0)
{
// unlock the tcpClient
this.unlockTcpClient();
// return a empty list
return responseMessages;
}
if (responseMessages[0].ResponseCode != FTPServerResponseCode.CommandOK)
{
throw new Exception((String)tempMessageList[0]);
}
// unlock the tcpClient
unlockTcpClient();
// return the list of responseMessages
return responseMessages;
}
public Int64 Download(String _remoteFile, FTP.TransferModeType _transferModeType)
{
String localFilePath = String.Format("{0}{1}",
PropertyManager.Property_FTP.DownloadCachePath,
_remoteFile
);
return this.Download(_remoteFile, localFilePath, _transferModeType);
}
public Int64 Upload(String _localfile, FTP.TransferModeType _transferModeType)
{
return this.Upload(_localfile, Path.GetFileName(_localfile), _transferModeType);
}