/// <inheritdoc/>
public override Task<FtpResponse> Process(FtpCommand command, CancellationToken cancellationToken)
{
var transferMode = FtpTransferMode.Parse(command.Argument);
FtpResponse response;
if (transferMode.FileType == FtpFileType.Ascii)
{
response = new FtpResponse(200, "ASCII transfer mode active.");
}
else if (transferMode.IsBinary)
{
response = new FtpResponse(200, "Binary transfer mode active.");
}
else
{
response = new FtpResponse(504, $"Mode {command.Argument} not supported.");
}
if (response.Code == 200)
{
Connection.Data.TransferMode = transferMode;
}
return Task.FromResult(response);
}
internal FtpResponse Connect(int timeout,
string server,
int port)
{
CheckDisposed();
NSTrace.WriteLineVerbose("CC: -> Connect");
if (null == server)
{
throw new ArgumentNullException("server");
}
if (port < IPEndPoint.MinPort || port > IPEndPoint.MaxPort)
{
throw new ArgumentOutOfRangeException("port", "Value, specified for the port, is out of valid range.");
}
SetProgress(true);
try
{
_socket.ConnectTimeout = timeout;
string msg = string.Format("CC: Connecting (timeout: {0}, srv: {1}:{2})...", timeout, server, port);
NSTrace.WriteLineInfo(msg);
_socket.Connect(server, port);
msg = string.Format("CC: Reading response...");
NSTrace.WriteLineInfo(msg);
_response = _reader.ReadResponse(timeout);
NSTrace.WriteLineVerbose("CC: <- Connect");
}
catch (SocketException e)
{
CheckDisposed();
CheckTimeoutException(e);
throw;
}
catch (Exception)
{
CheckDisposed();
throw;
}
catch
{
CheckDisposed();
throw;
}
finally
{
SetProgress(false);
}
OnResponseReceived();
return(_response);
}
public void Handle(FtpMessage message)
{
Console.WriteLine("Request received with id:" + message.Id);
var rep = new FtpResponse {
Id = 500, OtherData = Guid.NewGuid(), IsThisCool = true, Description = "What the?", ResponseId = message.Id
};
Bus.Reply(rep);
}
/// <inheritdoc />
public async Task ExecuteAsync(DataConnectionServerCommand command, CancellationToken cancellationToken)
{
var connection = _connectionAccessor.FtpConnection;
var serverCommandWriter = connection.Features.Get <IServerCommandFeature>().ServerCommandWriter;
var localizationFeature = connection.Features.Get <ILocalizationFeature>();
using (new ConnectionKeepAlive(connection, command.Command))
{
// Try to open the data connection
IFtpDataConnection dataConnection;
try
{
dataConnection = await connection.OpenDataConnectionAsync(null, cancellationToken)
.ConfigureAwait(false);
}
catch (Exception ex)
{
_logger?.LogWarning(0, ex, "Could not open data connection: {error}", ex.Message);
var errorResponse = new FtpResponse(
425,
localizationFeature.Catalog.GetString("Could not open data connection"));
await serverCommandWriter
.WriteAsync(new SendResponseServerCommand(errorResponse), cancellationToken)
.ConfigureAwait(false);
return;
}
// Execute the operation on the data connection.
var commandResponse = await connection.ExecuteCommand(
command.Command,
(_, ct) => command.DataConnectionDelegate(dataConnection, ct),
_logger,
cancellationToken);
var response =
commandResponse
?? new FtpResponse(226, localizationFeature.Catalog.GetString("Closing data connection."));
// We have to leave the connection open if the response code is 250.
if (response.Code != 250)
{
// Close the data connection.
await serverCommandWriter
.WriteAsync(new CloseDataConnectionServerCommand(dataConnection), cancellationToken)
.ConfigureAwait(false);
}
// Send the response.
await serverCommandWriter
.WriteAsync(new SendResponseServerCommand(response), cancellationToken)
.ConfigureAwait(false);
}
}
/// <summary>
/// Throws an exception if the server response is not one of the given acceptable codes
/// </summary>
/// <param name="response"></param>
/// <param name="codes"></param>
/// <returns></returns>
private async Task BailIfResponseNotAsync(FtpResponse response, params FtpStatusCode[] codes)
{
if (codes.Any(x => x == response.FtpStatusCode))
{
return;
}
Logger?.LogDebug($"Bailing due to response codes being {response.FtpStatusCode}, which is not one of: [{string.Join( ",", codes )}]");
await LogOutAsync();
throw new FtpException(response.ResponseMessage);
}
//this function used by routines - Connect, SendCommandEx, ReadResponse
void OnResponse(IAsyncResult ar)
{
AsyncResultBase stateObj = (AsyncResultBase)ar.AsyncState;
try
{
stateObj.UpdateContext();
_response = _reader.EndReadResponse(ar);
OnResponseReceived();
}
catch (SocketException e)
{
if (_disposed)
{
stateObj.Exception = GetDisposedException();
}
else if (e.ErrorCode == SockErrors.WSAETIMEDOUT)
{
stateObj.Exception = GetTimeoutException(e);
}
else
{
stateObj.Exception = e;
}
}
catch (Exception e)
{
if (_disposed)
{
stateObj.Exception = GetDisposedException();
}
else
{
stateObj.Exception = e;
}
}
catch
{
if (_disposed)
{
stateObj.Exception = GetDisposedException();
}
else
{
NSTrace.WriteLineError("Non-CLS exception at: " + Environment.StackTrace);
throw;
}
}
_response = _reader.Response;
stateObj.SetCompleted();
}
internal FtpResponse SendCommandEx(int timeout, string command)
{
CheckDisposed();
if (null == command)
{
throw new ArgumentNullException("command", "'command' argument cannot be null");
}
command = AppendCRLF(command);
SetProgress(true);
_response = null;
try
{
_socket.SendTimeout = timeout;
byte[] cmdBytes = _encoding.GetBytes(command);
int startPos = 0;
while (startPos < cmdBytes.Length)
{
startPos += _socket.Send(cmdBytes, startPos, cmdBytes.Length - startPos);
}
OnCommandSent(command);
try
{
_response = _reader.ReadResponse(timeout);
}
catch
{
_response = _reader.Response;
throw;
}
}
catch (SocketException e)
{
CheckDisposed();
CheckTimeoutException(e);
throw;
}
catch
{
CheckDisposed();
throw;
}
finally
{
SetProgress(false);
}
OnResponseReceived();
return(_response);
}
bool RunLoginCmd(int timeout, string cmd, ref FtpResponse response)
{
response = _cc.SendCommandEx(timeout, cmd);
if (!response.IsCompletionReply &&
!response.IsIntermediateReply)
{
throw GetLoginFailedException(response);
}
if (response.IsCompletionReply)
{
return(false); //login successed
}
return(true); //need more
}
internal FtpResponse Execute(int timeout, string command)
{
SetProgress(true);
FtpResponse response = null;
try
{
response = _cc.SendCommandEx(timeout, command);
}
finally
{
SetProgress(false);
}
return(response);
}
public async Task <FtpResponse> GetResponseAsync(CancellationToken token = default(CancellationToken))
{
Logger?.LogDebug("Getting Response");
if (Encoding == null)
{
throw new ArgumentNullException(nameof(Encoding));
}
await receiveSemaphore.WaitAsync(token);
try
{
token.ThrowIfCancellationRequested();
if (!SocketDataAvailable())
{
Logger?.LogDebug("Response expected, but no data exists on the socket");
}
var response = new FtpResponse();
var data = new List <string>();
foreach (string line in ReadLines(token))
{
token.ThrowIfCancellationRequested();
Logger?.LogDebug(line);
data.Add(line);
Match match;
if (!(match = Regex.Match(line, "^(?<statusCode>[0-9]{3}) (?<message>.*)$")).Success)
{
continue;
}
Logger?.LogDebug("Finished receiving message");
response.FtpStatusCode = match.Groups["statusCode"].Value.ToStatusCode();
response.ResponseMessage = match.Groups["message"].Value;
break;
}
response.Data = data.ToArray();
return(response);
}
finally
{
receiveSemaphore.Release();
}
}
/* Download File */
public void Download(string localFile, string remoteFile)
{
try
{
/* Create an FTP Request */
FtpRequest = (FtpWebRequest)FtpWebRequest.Create(InterlocutorAddress + "/" + remoteFile);
/* Log in to the FTP Server with the User Name and Password Provided */
FtpRequest.Credentials = new NetworkCredential(UserName, Password);
LogInToInterlocutor(InterlocutorAddress);
/* When in doubt, use these options */
FtpRequest.UseBinary = true;
FtpRequest.UsePassive = true;
FtpRequest.KeepAlive = true;
/* Specify the Type of FTP Request */
FtpRequest.Method = WebRequestMethods.Ftp.DownloadFile;
/* Establish Return Communication with the FTP Server */
FtpResponse = (FtpWebResponse)FtpRequest.GetResponse();
/* Get the FTP Server's Response Stream */
StartDownloadData(localFile, remoteFile, InterlocutorAddress);
FtpStream = FtpResponse.GetResponseStream();
/* Open a File Stream to Write the Downloaded File */
FileStream localFileStream = new FileStream(localFile, FileMode.Create);
/* Buffer for the Downloaded Data */
byte[] byteBuffer = new byte[BufferSize];
int bytesRead = FtpStream.Read(byteBuffer, 0, BufferSize);
/* Download the File by Writing the Buffered Data Until the Transfer is Complete */
try
{
while (bytesRead > 0)
{
localFileStream.Write(byteBuffer, 0, bytesRead);
bytesRead = FtpStream.Read(byteBuffer, 0, BufferSize);
}
}
finally
{ /* Resource Cleanup */
localFileStream.Close();
EndDownloadData(localFile, remoteFile, InterlocutorAddress);
}
}
finally
{
FtpStream.Close();
FtpResponse.Close();
FtpRequest = null;
}
}
public async Task <FtpResponse> GetResponseAsync(CancellationToken token = default(CancellationToken))
{
LoggerHelper.Trace("Getting Response");
if (Encoding == null)
{
throw new ArgumentNullException(nameof(Encoding));
}
#if NET40
await Task.Factory.StartNew(() => receiveSemaphore.Wait(token));
#else
await receiveSemaphore.WaitAsync(token);
#endif
try
{
token.ThrowIfCancellationRequested();
var response = new FtpResponse();
var data = new List <string>();
foreach (string line in ReadLines(token))
{
token.ThrowIfCancellationRequested();
LoggerHelper.Debug(line);
data.Add(line);
Match match;
if (!(match = Regex.Match(line, "^(?<statusCode>[0-9]{3}) (?<message>.*)$")).Success)
{
continue;
}
LoggerHelper.Trace("Finished receiving message");
response.FtpStatusCode = match.Groups["statusCode"].Value.ToStatusCode();
response.ResponseMessage = match.Groups["message"].Value;
break;
}
response.Data = data.ToArray();
return(response);
}
finally
{
receiveSemaphore.Release();
}
}
internal void SendCommand(int timeout, string command)
{
CheckDisposed();
if (null == command)
{
throw new ArgumentNullException("command", "Value cannot be null.");
}
command = AppendCRLF(command);
SetProgress(true);
_response = null;
try
{
_socket.SendTimeout = timeout;
byte[] cmdBytes = _encoding.GetBytes(command);
int startPos = 0;
while (startPos < cmdBytes.Length)
{
startPos += _socket.Send(cmdBytes, startPos, cmdBytes.Length - startPos);
}
OnCommandSent(command);
}
catch (SocketException e)
{
CheckDisposed();
CheckTimeoutException(e);
throw;
}
catch (Exception)
{
CheckDisposed();
throw;
}
catch
{
CheckDisposed();
throw;
}
finally
{
SetProgress(false);
}
}
/* Get the Size of a File */
public string GetFileSize(string fileName)
{
try
{
/* Create an FTP Request */
FtpRequest = (FtpWebRequest)FtpWebRequest.Create(InterlocutorAddress + "/" + fileName);
/* Log in to the FTP Server with the User Name and Password Provided */
FtpRequest.Credentials = new NetworkCredential(UserName, Password);
LogInToInterlocutor(InterlocutorAddress);
/* When in doubt, use these options */
FtpRequest.UseBinary = true;
FtpRequest.UsePassive = true;
FtpRequest.KeepAlive = true;
/* Specify the Type of FTP Request */
FtpRequest.Method = WebRequestMethods.Ftp.GetFileSize;
/* Establish Return Communication with the FTP Server */
FtpResponse = (FtpWebResponse)FtpRequest.GetResponse();
/* Establish Return Communication with the FTP Server */
FtpStream = FtpResponse.GetResponseStream();
/* Get the FTP Server's Response Stream */
StreamReader ftpReader = new StreamReader(FtpStream);
/* Store the Raw Response */
string fileInfo = null;
/* Read the Full Response Stream */
try { while (ftpReader.Peek() != -1)
{
fileInfo = ftpReader.ReadToEnd();
}
}
finally
{
/* Resource Cleanup */
ftpReader.Close();
}
/* Return File Size */
return(fileInfo);
}
finally
{
FtpStream.Close();
FtpResponse.Close();
FtpRequest = null;
}
}
IPEndPoint GetPasvEndPoint(FtpResponse response)
{
string respStr = _encoding.GetString(response.RawBytes);
Regex re = new Regex(@"^227.*[^\d](?<a1>\d{1,3}) *, *(?<a2>\d{1,3}) *, *(?<a3>\d{1,3}) *, *(?<a4>\d{1,3}) *, *(?<p1>\d{1,3}) *, *(?<p2>\d{1,3}).*");
Match m = re.Match(respStr);
if (7 != m.Groups.Count)
{
throw new Exception(); // some error in reply
}
string ip = m.Groups["a1"] + "." + m.Groups["a2"] + "." +
m.Groups["a3"] + "." + m.Groups["a4"];
IPAddress address = IPAddress.Parse(ip);
int port = (int.Parse(m.Groups["p1"].Value) << 8) | int.Parse(m.Groups["p2"].Value);
return(new IPEndPoint(address, port));
}
/// <summary> Renombrar un archivo remoto. </summary>
///
/// <param name="remotePathFile"> Path del archivo remoto a renombrar. </param>
/// <param name="remoteFileNew"> Nuevo nombre del archivo remoto. </param>
///
/// <returns></returns>
///
public Char FtpRenameFile(string remotePathFile, string remoteFileNew)
{
Resultado = 'N';
try
{
if (String.IsNullOrEmpty(FTPHost) || string.IsNullOrEmpty(FTPUser) || FTPPwd == null)
{
UsrError = "KO - Faltan parámetros de conexión al Host Ftp";
UsrErrorC = -1;
Resultado = 'N';
return(Resultado);
}
FtpRequest = (FtpWebRequest)FtpWebRequest.Create(FTPHost + "/" + remotePathFile);
FtpRequest.Credentials = new NetworkCredential(FTPUser, FTPPwd);
FtpRequest.Method = WebRequestMethods.Ftp.Rename;
FtpRequest.RenameTo = remoteFileNew;
// Canal de comunicación con el Host Ftp.
FtpResponse = (FtpWebResponse)FtpRequest.GetResponse();
// Cerrar canales de comunicación Ftp.
FtpRequest = null;
FtpResponse.Close();
Resultado = 'S';
UsrError = "OK";
}
catch (Exception ex)
{
// Error de programa.
UsrErrorC = ex.HResult;
UsrError = ex.Message;
UsrErrorE = ex.StackTrace;
Resultado = 'C';
}
return(Resultado);
}
internal void ReadQuitResponse_End(IAsyncResult ar)
{
RunDTP_SO stateObj = (RunDTP_SO)ar.AsyncState;
try
{
stateObj.UpdateContext();
FtpResponse response = _cc.EndReadResponse(ar);
ClearAtEnd(stateObj);
}
catch (Exception e)
{
HandleCatch(e, stateObj);
}
catch
{
HandleCatch(null, stateObj);
}
}
void AccountCmd_End(IAsyncResult ar)
{
Login_SO stateObj = (Login_SO)ar.AsyncState;
try
{
stateObj.UpdateContext();
FtpResponse response = _cc.EndSendCommandEx(ar);
if (!response.IsCompletionReply)
{
throw GetLoginFailedException(response);
}
}
catch (Exception e)
{
stateObj.Exception = e;
}
stateObj.SetCompleted();
}
internal FtpResponse ReadResponse(int timeout)
{
SetProgress(true);
try
{
_response = new FtpResponse(_encoding);
_response.NewLineEvent += new FtpResponse.NewLineEventHandler(this.OnNewLine);
_linesBuilder.NewLineEvent += new BytesRoad.Net.Ftp.Advanced.LinesBuilder.NewLineEventHandler(LinesBuilder_NewLineEvent);
_socket.ReceiveTimeout = timeout;
while (true)
{
ParseExistentData();
if (_response.IsCompleted)
{
break;
}
if (_linesBuilder.Available > 0)
{
continue;
}
int readNum = _socket.Receive(_recvBuffer);
if (0 == readNum)
{
throw GetClosedException();
}
_linesBuilder.PutData(_recvBuffer, readNum, false);
}
}
finally
{
SetProgress(false);
_linesBuilder.NewLineEvent -= new BytesRoad.Net.Ftp.Advanced.LinesBuilder.NewLineEventHandler(LinesBuilder_NewLineEvent);
_response.NewLineEvent -= new FtpResponse.NewLineEventHandler(this.OnNewLine);
_linesBuilder.ClearCompleted();
}
return(_response);
}
/* List Directory Contents in Detail (Name, Size, Created, etc.) */
public string[] DirectoryListDetailed(string directory)
{
try
{
/* Create an FTP Request */
FtpRequest = (FtpWebRequest)FtpWebRequest.Create(InterlocutorAddress + "/" + directory);
/* Log in to the FTP Server with the User Name and Password Provided */
FtpRequest.Credentials = new NetworkCredential(UserName, Password);
LogInToInterlocutor(InterlocutorAddress);
/* When in doubt, use these options */
FtpRequest.UseBinary = true;
FtpRequest.UsePassive = true;
FtpRequest.KeepAlive = true;
/* Specify the Type of FTP Request */
FtpRequest.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
/* Establish Return Communication with the FTP Server */
FtpResponse = (FtpWebResponse)FtpRequest.GetResponse();
/* Establish Return Communication with the FTP Server */
FtpStream = FtpResponse.GetResponseStream();
/* Get the FTP Server's Response Stream */
StreamReader ftpReader = new StreamReader(FtpStream);
/* Store the Raw Response */
string directoryRaw = null;
/* Read Each Line of the Response and Append a Pipe to Each Line for Easy Parsing */
try { while (ftpReader.Peek() != -1)
{
directoryRaw += ftpReader.ReadLine() + "|";
}
}
finally
{ /* Resource Cleanup */
ftpReader.Close();
}
/* Return the Directory Listing as a string Array by Parsing 'directoryRaw' with the Delimiter you Append (I use | in This Example) */
return(directoryRaw.Split("|".ToCharArray()));
}
finally
{
FtpStream.Close();
FtpResponse.Close();
FtpRequest = null;
}
}
/// <summary>
/// Populates the capabilities flags based on capabilities
/// supported by this server. This method is overridable
/// so that new features can be supported
/// </summary>
/// <param name="reply">The reply object from the FEAT command. The InfoMessages property will
/// contain a list of the features the server supported delimited by a new line '\n' character.</param>
internal void ParseFeatures(FtpResponse reply)
{
foreach (string feat in reply.InfoMessages.Split(new [] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries))
{
if (feat.ToUpper().Trim().StartsWith("MLST") || feat.ToUpper().Trim().StartsWith("MLSD"))
{
m_Caps |= FtpCapability.MLSD;
}
else if (feat.ToUpper().Trim().StartsWith("MDTM"))
{
m_Caps |= FtpCapability.MDTM;
}
else if (feat.ToUpper().Trim().StartsWith("REST STREAM"))
{
m_Caps |= FtpCapability.REST;
}
else if (feat.ToUpper().Trim().StartsWith("SIZE"))
{
m_Caps |= FtpCapability.SIZE;
}
else if (feat.ToUpper().Trim().StartsWith("UTF8"))
{
m_Caps |= FtpCapability.UTF8;
}
else if (feat.ToUpper().Trim().StartsWith("PRET"))
{
m_Caps |= FtpCapability.PRET;
}
else if (feat.ToUpper().Trim().StartsWith("MFMT"))
{
m_Caps |= FtpCapability.MFMT;
}
else if (feat.ToUpper().Trim().StartsWith("MFCT"))
{
m_Caps |= FtpCapability.MFCT;
}
else if (feat.ToUpper().Trim().StartsWith("MFF"))
{
m_Caps |= FtpCapability.MFF;
}
}
}
internal IAsyncResult BeginSendCommand(int timeout, string command, AsyncCallback cb, object state)
{
CheckDisposed();
if (null == command)
{
throw new ArgumentNullException("command", "'command' argument cannot be null");
}
command = AppendCRLF(command);
SetProgress(true);
_response = null;
try
{
_socket.SendTimeout = timeout;
byte[] cmdBytes = _encoding.GetBytes(command);
CCSendStateObject stateObj =
new CCSendStateObject(timeout, cmdBytes, cb, state);
_socket.BeginSend(cmdBytes,
0,
cmdBytes.Length,
new AsyncCallback(this.OnEndSend),
stateObj);
return(stateObj);
}
catch (SocketException e)
{
SetProgress(false);
CheckDisposed();
CheckTimeoutException(e);
throw;
}
catch
{
SetProgress(false);
CheckDisposed();
throw;
}
}
/// <inheritdoc />
public override Task <IFtpResponse> HandlePbszAsync(long size, CancellationToken cancellationToken)
{
IFtpResponse response;
var hostSelector = Connection.ConnectionServices.GetRequiredService <IFtpHostSelector>();
if (hostSelector.SelectedHost.Certificate == null)
{
response = new FtpResponse(500, T("Syntax error, command unrecognized."));
}
else if (size != 0)
{
response = new FtpResponse(501, T("A protection buffer size other than 0 is not supported. Use PBSZ=0 instead."));
}
else
{
response = new FtpResponse(200, T("Protection buffer size set to {0}.", size));
}
return(Task.FromResult(response));
}
void SendCommandEx_End(IAsyncResult ar)
{
RunDTP_SO stateObj = (RunDTP_SO)ar.AsyncState;
try
{
stateObj.UpdateContext();
FtpResponse response = _cc.EndSendCommandEx(ar);
if (response.IsCompletionReply)
{
NSTrace.WriteLineWarning("Executing DTP: receive completion as first reply.");
UnlockCC(stateObj);
stateObj.SetCompleted();
}
else
{
FtpClient.CheckPreliminaryResponse(response);
//establish connection now, if it is inbound
if (FtpDataConnectionType.Inbound == _currentDC.Type)
{
_currentDC.BeginEstablish(stateObj.Timeout,
new AsyncCallback(this.InboundEstablish_End),
stateObj);
}
else
{
DoRunDTP(stateObj);
}
}
}
catch (Exception e)
{
HandleCatch(e, stateObj);
}
catch
{
HandleCatch(null, stateObj);
}
}
public static async Task <FtpResponse> ReceiveAsync(this Socket socket,
int bufferSize,
Func <SocketAsyncEventArgs> createSocketAsyncEventArgsPredicate,
Encoding encoding,
CancellationToken cancellationToken)
{
var rawFtpResponse = await socket.ReceiveAsync(bufferSize,
createSocketAsyncEventArgsPredicate,
cancellationToken);
if (!rawFtpResponse.Success)
{
return(FtpResponse.Failed);
}
var data = encoding.GetString(rawFtpResponse.Buffer,
0,
rawFtpResponse.Buffer.Length);
var ftpResponse = new FtpResponse(data);
return(ftpResponse);
}
internal void Execute(int timeout)
{
bool ccLocked = false;
try
{
ccLocked = _cc.Lock(Timeout.Infinite);
if (null != _client.CurrentDTP)
{
//----------------------------------------
//In case when we have active DTP we delegate
//handling responses to it and here only send
//abort command
_cc.SendCommand(timeout, "ABOR");
//----------------------------------------
//Notify DTP that it should abort data
//connection and handle abort command
//
_client.CurrentDTP.Abort();
}
else
{
//----------------------------------------
//In case there is no DTP, but user wants
//issue abort command we should dealing with
//responses here ...
FtpResponse response = _cc.SendCommandEx(timeout, "ABOR");
FtpClient.CheckCompletionResponse(response);
}
}
finally
{
if (true == ccLocked)
{
_cc.Unlock();
}
}
}
void GetDC_EndCmd(IAsyncResult ar)
{
GetDC_SO stateObj = (GetDC_SO)ar.AsyncState;
try
{
stateObj.UpdateContext();
FtpResponse response = _cc.EndSendCommandEx(ar);
if (_passiveMode)
{
if (false == response.IsCompletionReply)
{
NSTrace.WriteLineError("PASV: " + response.ToString());
stateObj.Exception = new FtpErrorException("Error while configuring data connection.", response);
}
else
{
IPEndPoint ep = GetPasvEndPoint(response);
stateObj.DC = new FtpDataConnectionOutbound(_client, ep);
}
}
else
{
if (false == response.IsCompletionReply)
{
stateObj.DC.Dispose();
stateObj.DC = null;
NSTrace.WriteLineError(stateObj.Cmd + ": " + response.ToString());
stateObj.Exception = new FtpErrorException("Error while configure data connection.", response);
}
}
}
catch (Exception e)
{
stateObj.Exception = e;
}
stateObj.SetCompleted();
}
void Restart_End(IAsyncResult ar)
{
RunDTP_SO stateObj = (RunDTP_SO)ar.AsyncState;
try
{
stateObj.UpdateContext();
FtpResponse res = _cc.EndSendCommandEx(ar);
if (false == res.IsIntermediateReply)
{
throw GetRestartNotSuppException(res);
}
//establish connection now, if it is outbound
if (FtpDataConnectionType.Outbound == _currentDC.Type)
{
_currentDC.BeginEstablish(stateObj.Timeout,
new AsyncCallback(this.OutboundEstablish_End),
stateObj);
}
else
{
_cc.BeginSendCommandEx(stateObj.Timeout,
stateObj.Command,
new AsyncCallback(this.SendCommandEx_End),
stateObj);
}
}
catch (Exception e)
{
HandleCatch(e, stateObj);
}
catch
{
HandleCatch(null, stateObj);
}
}
internal void Execute(int timeout)
{
bool ccLocked = false;
try
{
ccLocked = _cc.Lock(Timeout.Infinite);
if (null != _client.CurrentDTP)
{
//----------------------------------------
//In case when we have active DTP we delegate
//handling responses to it and here only send
//quit command
_cc.SendCommand(timeout, "QUIT");
//----------------------------------------
//Notify DTP that it should handle quit
//issue
_client.CurrentDTP.Quit();
}
else
{
//----------------------------------------
//In case there is no DTP, we should
//dealing with responses here ...
FtpResponse response = _cc.SendCommandEx(timeout, "QUIT");
FtpClient.CheckCompletionResponse(response);
}
}
finally
{
if (true == ccLocked)
{
_cc.Unlock();
}
}
}
void PasswordCmd_End(IAsyncResult ar)
{
Login_SO stateObj = (Login_SO)ar.AsyncState;
try
{
stateObj.UpdateContext();
FtpResponse response = _cc.EndSendCommandEx(ar);
if (!response.IsCompletionReply &&
!response.IsIntermediateReply)
{
throw GetLoginFailedException(response);
}
if (response.IsCompletionReply)
{
stateObj.SetCompleted();
}
else
{
if (null == stateObj.Account)
{
throw new FtpAccountRequiredException("Unable to login, account is required.", response);
}
_cc.BeginSendCommandEx(stateObj.Timeout,
"ACCT " + stateObj.Account,
new AsyncCallback(AccountCmd_End),
stateObj);
}
}
catch (Exception e)
{
stateObj.Exception = e;
stateObj.SetCompleted();
}
}
internal IAsyncResult BeginReadResponse(int timeout,
AsyncCallback cb,
object state)
{
CheckDisposed();
CCReadStateObject stateObj = null;
SetProgress(true);
_response = null;
try
{
stateObj = new CCReadStateObject(cb, state);
_reader.BeginReadResponse(timeout,
new AsyncCallback(this.OnResponse),
stateObj);
}
catch (SocketException e)
{
SetProgress(false);
CheckDisposed();
CheckTimeoutException(e);
throw;
}
catch
{
SetProgress(false);
CheckDisposed();
throw;
}
finally
{
_response = _reader.Response;
}
return(stateObj);
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="message">Exception message text.</param>
/// <param name="response">Ftp response object.</param>
/// <param name="innerException">The inner exception object.</param>
public FtpDataConnectionException(string message, FtpResponse response, Exception innerException)
: base(message, response, innerException)
{
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="message">Exception message text.</param>
/// <param name="response">Ftp response object.</param>
public FtpDataConnectionException(string message, FtpResponse response)
: base(message, response)
{
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="message">Exception message text.</param>
/// <param name="response">Response object.</param>
/// <param name="innerException">The inner exception object.</param>
public FtpException(string message, FtpResponse response, Exception innerException)
: base(message, innerException)
{
_response = response;
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="message">Exception message text.</param>
/// <param name="response">Ftp response object.</param>
public FtpException(string message, FtpResponse response)
: base(message)
{
_response = response;
}