Example #1
0
    // Command line arguments are two strings:
    // 1. The url that is the name of the file being uploaded to the server.
    // 2. The name of the file on the local machine.
    //
    public FtpState Upload(string _file, string _uri, string _account, string _pass, UploadStepDelegate _stepDelegate)
    {
        state = new FtpState();

        request        = (FtpWebRequest)WebRequest.Create(new Uri(_uri + "/" + Path.GetFileName(_file)));
        request.Method = WebRequestMethods.Ftp.UploadFile;

        // This example uses anonymous logon.
        // The request is anonymous by default; the credential does not have to be specified.
        // The example specifies the credential only to
        // control how actions are logged on the server.

        request.Credentials = new NetworkCredential(_account, _pass);

        // Store the request in the object that we pass into the
        // asynchronous operations.
        state.Request              = request;
        state.FileName             = _file;
        state.StepProgressDelegate = _stepDelegate;

        // Asynchronously get the stream for the file contents.
        request.BeginGetRequestStream(
            new AsyncCallback(EndGetStreamCallback),
            state
            );

        return(state);
    }
Example #2
0
        //----------------------------------------------------------------------------------------------
        /// <summary>
        /// Make a FTP request to get a file from the server.
        /// It will raise an event on the BaseHandler, when done 
        /// </summary>
        /// <param name="target"> url that is the name of the file being uploaded to the server</param>
        /// <param name="state">holds all the required data as supplied by the caller</param>
        /// <param name="user">username used to connect to the server</param>
        /// <param name="passwrd">username used to connect to the server</param>
        public static void DownloadRequest(Uri target, FtpState state, string user, string passwrd)
        {
            try
            {
                SetupRequest(target, state, state.FileName.Name, user, passwrd);
                state.mRequest.Method = WebRequestMethods.Ftp.DownloadFile;
                //
                // Store the request in the object that we pass into the
                // asynchronous operations.
                // Asynchronously get the stream for the file contents.
                //
                state.mRequest.BeginGetResponse(
                    new AsyncCallback(EndDownloadResponseCallback),
                    state);

                //.BeginGetRequestStream(
                //    new AsyncCallback(EndDownloadGetStreamCallback),
                //    state
                //);
            }
            catch (Exception e)
            {
                state.RaiseException(e);
            }
        }
Example #3
0
        /// <summary>
        /// Upload a MemoryStream object to the given FTP server.
        /// </summary>
        /// <param name="stream"></param>
        /// <param name="target"></param>
        /// <param name="username"></param>
        /// <param name="password"></param>
        public static void Upload(MemoryStream stream, Uri target, string username, string password)
        {
            var state   = new FtpState();
            var request = (FtpWebRequest)WebRequest.Create(target);

            request.Method      = WebRequestMethods.Ftp.UploadFile;
            request.Credentials = new NetworkCredential(username, password);

            // Store the request in the object that we pass into the asynchronous operations.
            state.Request = request;
            state.Stream  = stream;

            // Get the event to wait on.
            var waitObject = state.OperationComplete;

            // Asynchronously get the stream for the file contents.
            request.BeginGetRequestStream(EndGetStreamCallback, state);

            // Block the current thread until all operations are complete.
            waitObject.WaitOne();

            // The operations either completed or threw an exception.
            if (state.OperationException != null)
            {
                throw state.OperationException;
            }
        }
Example #4
0
 //----------------------------------------------------------------------------------------------
 /// <summary>
 /// Make a FTP request to put a file onto the server.
 /// It will raise an event on the BaseHandler, when done 
 /// </summary>
 /// <param name="target"> url that is the name of the file being uploaded to the server</param>
 /// <param name="state">holds all the required data as supplied by the caller</param>
 /// <param name="user">username used to connect to the server</param>
 /// <param name="passwrd">username used to connect to the server</param>
 public static void UploadRequest(Uri target, FtpState state, string user, string passwrd)
 {
     try
     {
         if (!state.FileName.Exists)
         {
             throw new Exception("FTP_Handler::UploadRequest file: " + state.FileName.FullName
                 + " does not exist");
         }
         SetupRequest(target, state, state.FileName.Name, user, passwrd);
         state.mRequest.Method = WebRequestMethods.Ftp.UploadFile;
         //
         // Store the request in the object that we pass into the
         // asynchronous operations.
         // Asynchronously get the stream for the file contents.
         //
         state.mRequest.BeginGetRequestStream(
             new AsyncCallback(EndUploadGetStreamCallback),
             state
         );
     }
     catch (Exception e)
     {
         state.RaiseException(e);
     }
 }
Example #5
0
    public static string FtpFileUpload(string ftpUri, string ftpUsername, string ftpPassword, string fileFullPath, string fileName)
    {
        ManualResetEvent waitObject;

        FtpState      state   = new FtpState();
        FtpWebRequest request = (FtpWebRequest)WebRequest.Create(ftpUri + fileName);

        request.Method = WebRequestMethods.Ftp.UploadFile;

        request.Credentials = new NetworkCredential(ftpUsername, ftpPassword);

        state.Request  = request;
        state.FileName = fileFullPath;

        waitObject = state.OperationComplete;

        request.BeginGetRequestStream(
            new AsyncCallback(EndGetStreamCallback),
            state
            );

        waitObject.WaitOne();

        // The operations either completed or threw an exception.
        if (state.OperationException != null)
        {
            return(state.OperationException.Message);
        }
        else
        {
            return(string.Empty);
        }
    }
Example #6
0
    /////////////////////////////////////////////////////////////////////////////////////////////////////
    //get_stream
    /////////////////////////////////////////////////////////////////////////////////////////////////////

    private void get_stream(IAsyncResult ar)
    {
        FtpState state = (FtpState)ar.AsyncState;

        try
        {
            Stream     request_stream = state.request.EndGetRequestStream(ar);
            const int  len            = 2048;
            byte[]     buf            = new byte[len];
            int        count          = 0;
            int        read           = 0;
            FileStream file_stream    = File.OpenRead(state.full_filename);
            do
            {
                read = file_stream.Read(buf, 0, len);
                request_stream.Write(buf, 0, read);
                count += read;
            }while (read != 0);
            request_stream.Close();
            state.request.BeginGetResponse(new AsyncCallback(end_response), state);
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
            return;
        }
    }
Example #7
0
        private static void EndGetStreamCallback(IAsyncResult ar)
        {
            FtpState state = (FtpState)ar.AsyncState;

            FileStream stream        = null;
            Stream     requestStream = null;

            // End the asynchronous call to get the request stream.
            try
            {
                requestStream = state.Request.EndGetRequestStream(ar);
                // Copy the file contents to the request stream.
                const int bufferLength = 2048;
                byte[]    buffer       = new byte[bufferLength];
                int       count        = 0;
                int       readBytes    = 0;

                stream = File.OpenRead(state.Argument);
                do
                {
                    readBytes = stream.Read(buffer, 0, bufferLength);
                    requestStream.Write(buffer, 0, readBytes);
                    count += readBytes;
                }while (readBytes != 0);
                Utils.configLog("I", String.Format("Writing {0} bytes to the stream.", count));

                // IMPORTANT: Close the request stream before sending the request.
                requestStream.Close();
                requestStream = null;
                // Asynchronously get the response to the upload request.
                state.Request.BeginGetResponse(
                    new AsyncCallback(EndGetResponseCallback),
                    state
                    );
            }
            // Return exceptions to the main application thread.
            catch (Exception e)
            {
                Utils.configLog("E", String.Format("Could not get the request stream"));
                state.OperationException = e;
                state.OperationComplete.Set();
                return;
            }
            finally
            {
                if (null != requestStream)
                {
                    requestStream.Close();
                }
                if (null != stream)
                {
                    stream.Close();
                }
            }
        }
    public static void SendFile(string FTPSite, string fileName, string user, string pass, string fullPath)
    {
        // Create a Uri instance with the specified URI string.
        // If the URI is not correctly formed, the Uri constructor
        // will throw an exception.
        ManualResetEvent waitObject;

        Uri      target = new Uri(FTPSite);
        FtpState state  = new FtpState();
        //FtpWebRequest request = (FtpWebRequest)WebRequest.Create(target);
        FtpWebRequest request = (FtpWebRequest)WebRequest.Create(target + @"/" + fileName);

        //FtpWebRequest request = (FtpWebRequest)WebRequest.Create(@"ftp://10.1.36.34/");
        request.Method = WebRequestMethods.Ftp.UploadFile;

        // This example uses anonymous logon.
        // The request is anonymous by default; the credential does not have to be specified.
        // The example specifies the credential only to
        // control how actions are logged on the server.
        request.Proxy = null;

        request.Credentials = new NetworkCredential(user, pass);

        // Store the request in the object that we pass into the
        // asynchronous operations.
        state.Request = request;

        // Set a time limit for the operation to complete.
        request.Timeout = 600000;
        //state.FileName = @"C:\Software\PFCApps\IntranetSite\PurchaseImport\XML\PFC_Order_11050303_toms.xml"; ;
        state.FileName = fullPath;

        // Get the event to wait on.
        waitObject = state.OperationComplete;

        // Asynchronously get the stream for the file contents.
        request.BeginGetRequestStream(
            new AsyncCallback(EndGetStreamCallback),
            state
            );

        // Block the current thread until all operations are complete.
        waitObject.WaitOne();

        // The operations either completed or threw an exception.
        if (state.OperationException != null)
        {
            throw state.OperationException;
        }
        else
        {
            //lblSuccessMessage.Text = "XML sent to " + FTPSite;
            //MessageUpdatePanel.Update();
        }
    }
Example #9
0
        // The EndGetResponseCallback method
        // completes a call to BeginGetResponse.
        private static void EndGetResponseCallback(IAsyncResult ar)
        {
            FtpState       state    = (FtpState)ar.AsyncState;
            FtpWebResponse response = null;
            FileStream     stream   = null;

            try
            {
                response = (FtpWebResponse)state.Request.EndGetResponse(ar);
                state.StatusDescription = response.StatusDescription;
                state.ResponseStream    = response.GetResponseStream();


                if (state.Request.Method == WebRequestMethods.Ftp.DownloadFile)
                {
                    const int bufferLength = 2048;
                    byte[]    buffer       = new byte[bufferLength];
                    int       count        = 0;
                    int       writeBytes   = 0;

                    stream = File.OpenWrite(state.Argument);
                    do
                    {
                        writeBytes = state.ResponseStream.Read(buffer, 0, bufferLength);
                        stream.Write(buffer, 0, writeBytes);
                        count += writeBytes;
                    }while (writeBytes != 0);
                    Utils.configLog("I", String.Format("Writing {0} bytes to the file.", count));
                }

                // Signal the main application thread that
                // the operation is complete.
                state.OperationComplete.Set();
            }
            // Return exceptions to the main application thread.
            catch (Exception e)
            {
                Utils.configLog("E", String.Format("Error getting response."));
                state.OperationException = e;
                state.OperationComplete.Set();
            }
            finally
            {
                if (null != response)
                {
                    response.Close();
                }
                if (null != stream)
                {
                    stream.Close();
                }
            }
        }
Example #10
0
        // Command line arguments are two strings:
        // 1. The url that is the name of the file being uploaded to the server.
        // 2. The name of the file on the local machine.
        //
        public static void Main(string[] args)
        {
            // Create a Uri instance with the specified URI string.
            // If the URI is not correctly formed, the Uri constructor
            // will throw an exception.
            ManualResetEvent waitObject;

            Uri           target   = new Uri(args[0]);
            string        fileName = args[1];
            FtpState      state    = new FtpState();
            FtpWebRequest request  = (FtpWebRequest)WebRequest.Create(target);

            request.Method = WebRequestMethods.Ftp.UploadFile;

            // This example uses anonymous logon.
            // The request is anonymous by default; the credential does not have to be specified.
            // The example specifies the credential only to
            // control how actions are logged on the server.

            request.Credentials = new NetworkCredential("anonymous", "*****@*****.**");

            // Store the request in the object that we pass into the
            // asynchronous operations.
            state.Request  = request;
            state.FileName = fileName;

            // Get the event to wait on.
            waitObject = state.OperationComplete;

            // Asynchronously get the stream for the file contents.
            request.BeginGetRequestStream(
                new AsyncCallback(EndGetStreamCallback),
                state
                );

            // Block the current thread until all operations are complete.
            waitObject.WaitOne();

            // The operations either completed or threw an exception.
            if (state.OperationException != null)
            {
                throw state.OperationException;
            }
            else
            {
                Console.WriteLine("The operation completed - {0}", state.StatusDescription);
            }
        }
Example #11
0
    /////////////////////////////////////////////////////////////////////////////////////////////////////
    //end_response
    /////////////////////////////////////////////////////////////////////////////////////////////////////

    private void end_response(IAsyncResult ar)
    {
        FtpState state = (FtpState)ar.AsyncState;

        try
        {
            FtpWebResponse response = (FtpWebResponse)state.request.EndGetResponse(ar);
            response.Close();
            state.wait.Set();
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
            state.wait.Set();
        }
    }
Example #12
0
    private void EndGetStreamCallback(IAsyncResult ar)
    {
        FtpState state = (FtpState)ar.AsyncState;

        Stream requestStream = null;

        // End the asynchronous call to get the request stream.
        try
        {
            requestStream = state.Request.EndGetRequestStream(ar);
            // Copy the file contents to the request stream.
            const int  bufferLength = 2048;
            byte[]     buffer       = new byte[bufferLength];
            int        count        = 0;
            int        readBytes    = 0;
            FileStream stream       = File.OpenRead(state.FileName);
            do
            {
                readBytes = stream.Read(buffer, 0, bufferLength);
                requestStream.Write(buffer, 0, readBytes);
                count += readBytes;

                if (state.StepProgressDelegate != null)
                {
                    state.StepProgressDelegate(count);
                }
            }while (readBytes != 0);

            Debug.Log("Writing {0} bytes to the stream.", count);

            // IMPORTANT: Close the request stream before sending the request.
            requestStream.Close();

            // Asynchronously get the response to the upload request.
            state.Request.BeginGetResponse(
                new AsyncCallback(EndGetResponseCallback),
                state
                );
        }
        // Return exceptions to the main application thread.
        catch (Exception e)
        {
            Debug.LogError("AsynchronousFtpUpLoader Could not get the request stream. " + e.Message);
            state.OperationException = e;
        }
    }
Example #13
0
    /////////////////////////////////////////////////////////////////////////////////////////////////////
    //get_stream_buf
    //gets buffer from FtpState
    /////////////////////////////////////////////////////////////////////////////////////////////////////

    private void get_stream_buf(IAsyncResult ar)
    {
        FtpState state = (FtpState)ar.AsyncState;

        try
        {
            Stream stream = state.request.EndGetRequestStream(ar);
            byte[] buf    = Encoding.ASCII.GetBytes(state.buf);
            stream.Write(buf, 0, state.buf.Length);
            stream.Close();
            state.request.BeginGetResponse(new AsyncCallback(end_response), state);
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
            return;
        }
    }
Example #14
0
    /////////////////////////////////////////////////////////////////////////////////////////////////////
    //upload_async_read
    /////////////////////////////////////////////////////////////////////////////////////////////////////

    private bool upload_async_read(string full_filename, string filename, bool alive, string connection_name, int connection_limit)
    {
        FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://" + address + "/" + directory + "/" + filename);

        request.Method      = WebRequestMethods.Ftp.UploadFile;
        request.Credentials = new NetworkCredential(username, password);
        request.KeepAlive   = alive;
        if (!String.IsNullOrEmpty(connection_name))
        {
            request.ConnectionGroupName = connection_name;
        }
        request.ServicePoint.ConnectionLimit = connection_limit;
        FtpState         state = new FtpState(request, full_filename);
        ManualResetEvent wait  = state.wait;

        request.BeginGetRequestStream(new AsyncCallback(get_stream), state);
        wait.WaitOne();
        return(true);
    }
Example #15
0
    // The EndGetResponseCallback method
    // completes a call to BeginGetResponse.
    private void EndGetResponseCallback(IAsyncResult ar)
    {
        FtpState       state    = (FtpState)ar.AsyncState;
        FtpWebResponse response = null;

        try
        {
            response = (FtpWebResponse)state.Request.EndGetResponse(ar);
            response.Close();

            state.StatusDescription = response.StatusDescription;
        }
        // Return exceptions to the main application thread.
        catch (Exception e)
        {
            Debug.LogError("AsynchronousFtpUpLoader Error getting response." + e.Message);
            state.OperationException = e;
        }
    }
Example #16
0
    private static void EndGetStreamCallback(IAsyncResult ar)
    {
        FtpState state = (FtpState)ar.AsyncState;

        Stream requestStream = null;

        // End the asynchronous call to get the request stream.
        try
        {
            requestStream = state.Request.EndGetRequestStream(ar);
            // Copy the file contents to the request stream.
            const int  bufferLength = 2048;
            byte[]     buffer       = new byte[bufferLength];
            int        count        = 0;
            int        readBytes    = 0;
            FileStream stream       = File.OpenRead(state.FileName);
            do
            {
                readBytes = stream.Read(buffer, 0, bufferLength);
                requestStream.Write(buffer, 0, readBytes);
                count += readBytes;
            }while (readBytes != 0);
            // IMPORTANT: Close the request stream before sending the request.
            requestStream.Close();
            // Asynchronously get the response to the upload request.
            state.Request.BeginGetResponse(
                new AsyncCallback(EndGetResponseCallback),
                state
                );
            if (stream != null)
            {
                stream.Close();
            }
        }
        // Return exceptions to the main application thread.
        catch (Exception e)
        {
            state.OperationException = e;
            state.OperationComplete.Set();
            return;
        }
    }
Example #17
0
    // The EndGetResponseCallback method
    // completes a call to BeginGetResponse.
    private static void EndGetResponseCallback(IAsyncResult ar)
    {
        FtpState       state    = (FtpState)ar.AsyncState;
        FtpWebResponse response = null;

        try
        {
            response = (FtpWebResponse)state.Request.EndGetResponse(ar);
            response.Close();
            state.StatusDescription = response.StatusDescription;
            // Signal the main application thread that
            // the operation is complete.
            state.OperationComplete.Set();
        }
        // Return exceptions to the main application thread.
        catch (Exception e)
        {
            state.OperationException = e;
            state.OperationComplete.Set();
        }
    }
Example #18
0
        private async Task PerformUpload(string lServerPath, string tempPath)
        {
            var fileName = Path.GetFileName(lServerPath);
            var state    = new FtpState();
            var request  = (FtpWebRequest)(WebRequest.Create(FTPServerAddress + lServerPath));

            request.Credentials = new NetworkCredential(Username, Password);
            request.Method      = WebRequestMethods.Ftp.UploadFile;

            state.Request  = request;
            state.FileName = tempPath;

            using (var requestStream = await state.Request.GetRequestStreamAsync())
            {
                const int bufferLength = 10000;
                byte[]    buffer       = new byte[bufferLength];
                int       count        = 0;
                int       readBytes;
                using (FileStream stream = File.OpenRead(state.FileName))
                {
                    do
                    {
                        readBytes = await stream.ReadAsync(buffer, 0, bufferLength);

                        await requestStream.WriteAsync(buffer, 0, readBytes);

                        count += readBytes;
                        var percentageComplete = (int)(((double)count / stream.Length) * 100);
                        UpdateStatusMessage($"Uploading {fileName}: ({percentageComplete}% complete)");
                    } while (readBytes != 0);
                }
            }

            using (FtpWebResponse response = (FtpWebResponse)await state.Request.GetResponseAsync())
            {
                state.StatusDescription = response.StatusDescription;
            }
        }
        private static void HandleFileTransfer(Uri serverUri, string filepath, bool up, string userName, string password, bool enableSSL)
        {
            if (serverUri.Scheme != Uri.UriSchemeFtp)
            {
                throw new ArgumentException(String.Format("{0} scheme is not ftp", serverUri.AbsoluteUri));
            }

            ManualResetEvent waitObject;

            FtpState state = new FtpState();
            FtpWebRequest request = (FtpWebRequest)WebRequest.Create(serverUri);
            request.EnableSsl = enableSSL;

            if (up)
            {
                request.Method = WebRequestMethods.Ftp.UploadFile;
            }
            else
            {
                request.Method = WebRequestMethods.Ftp.DownloadFile;
            }

            request.Credentials = new NetworkCredential(userName, password);

            // Store the request in the object that we pass into the
            // asynchronous operations.
            state.Request = request;
            state.Argument = filepath;

            // Get the event to wait on.
            waitObject = state.OperationComplete;

            if (up)
            {
                // Asynchronously get the stream for the file contents.
                request.BeginGetRequestStream(
                    new AsyncCallback(EndGetStreamCallback),
                    state
                );
            }
            else
            {
                request.BeginGetResponse(
                    new AsyncCallback(EndGetResponseCallback),
                    state
                );
            }

            // Block the current thread until all operations are complete.
            waitObject.WaitOne();

            // The operations either completed or threw an exception.
            if (state.OperationException != null)
            {
                throw state.OperationException;
            }
            else
            {
                Utils.configLog("I", String.Format("The operation completed - {0}", state.StatusDescription));
            }
        }
Example #20
0
        /// <summary>Upload the File to Ftp.</summary>
        /// <param name="objUploadFileDistributionRequest">Input File distribution request.</param>
        /// <returns>error if any.</returns>
        internal static string Upload(ref UploadFileDistributionRequest objUploadFileDistributionRequest)
        {
            string error = string.Empty;

            if (objUploadFileDistributionRequest != null && !string.IsNullOrEmpty(objUploadFileDistributionRequest.FtpServerIP) && !string.IsNullOrEmpty(objUploadFileDistributionRequest.FtpUserName) && !string.IsNullOrEmpty(objUploadFileDistributionRequest.FtpPassword) && objUploadFileDistributionRequest.Folder.NbFiles > 0)
            {
                foreach (IRemoteFileClass lRemoteFile in objUploadFileDistributionRequest.Folder.FolderFilesList)
                {
                    if (lRemoteFile.Exists)
                    {
                        /* Testing mode is enable. So, simulate that file was uploaded properly.
                         *
                         * In the future, a better approach might be found.
                         */
                        if (lRemoteFile.FileType == FileTypeEnum.Undefined && RemoteFileClass.TestingModeEnabled)
                        {
                            FtpStatus ftpStatus = new FtpStatus();
                            ftpStatus.FileName           = lRemoteFile.FilePath;
                            ftpStatus.FtpStatusCode      = FtpStatusCode.FileActionOK;;
                            ftpStatus.OperationException = null;
                            ftpStatus.StatusDescription  = "OK";

                            lRemoteFile.FtpStatus = ftpStatus;

                            continue;
                        }

                        DateTime      dtTime = DateTime.Now;
                        FtpWebRequest reqFTP = null;
                        try
                        {
                            InitializeFtpRequest(lRemoteFile, objUploadFileDistributionRequest.FtpServerIP, objUploadFileDistributionRequest.FtpDirectory, objUploadFileDistributionRequest.FtpUserName, objUploadFileDistributionRequest.FtpPassword, out reqFTP);
                        }
                        catch (Exception ex)
                        {
                            return(ex.Message);
                        }
                        if (reqFTP != null)
                        {
                            FtpWebResponse response = null;
                            try
                            {
                                using (ManualResetEvent timerEvent = new ManualResetEvent(false))
                                    using (FtpState ftpState = new FtpState())
                                    {
                                        ftpState.RemoteFile      = lRemoteFile;
                                        ftpState.Request         = reqFTP;
                                        ftpState.Request.Timeout = Timeout.Infinite;

                                        UploadFile(ftpState);
                                        if (ftpState.Response != null)
                                        {
                                            response = ftpState.Response;
                                            if (response.StatusCode == FtpStatusCode.ServiceNotAvailable || response.StatusCode == FtpStatusCode.ServiceTemporarilyNotAvailable)
                                            {
                                                if (DateTime.Now.Subtract(dtTime).TotalMinutes > TimeOut)
                                                {
                                                    error = "T2G Ground Server not responding for " + TimeOut + " period uploading terminated";
                                                    objUploadFileDistributionRequest.Folder.UploadingState = UploadingStateEnum.Failed;
                                                    return(error);
                                                }
                                            }

                                            if (response.StatusCode != FtpStatusCode.FileActionOK && response.StatusCode != FtpStatusCode.ClosingData && response.StatusCode != FtpStatusCode.DirectoryStatus && response.StatusCode != FtpStatusCode.FileStatus && response.StatusCode != FtpStatusCode.SystemType && response.StatusCode != FtpStatusCode.SendUserCommand && response.StatusCode != FtpStatusCode.ClosingControl && response.StatusCode != FtpStatusCode.ClosingData && response.StatusCode != FtpStatusCode.PathnameCreated)
                                            {
                                                lRemoteFile.HasError = true;
                                                LogManager.WriteLog(TraceType.INFO, "File upload error, create transfer task. RequestID = " + objUploadFileDistributionRequest.RequestId.ToString() + ", CRCGuid = " + objUploadFileDistributionRequest.Folder.CRCGuid + ", Folder ID = " + objUploadFileDistributionRequest.Folder.FolderId.ToString() + ", FTP error = " + response.StatusCode.ToString(), "Ground.Core.T2G.T2GClient.StartTransferTask", null, EventIdEnum.GroundCore);

                                                objUploadFileDistributionRequest.Folder.UploadingState = UploadingStateEnum.Failed;
                                            }

                                            FtpStatus ftpStatus = new FtpStatus();
                                            ftpStatus.FileName           = lRemoteFile.FilePath;
                                            ftpStatus.FtpStatusCode      = response.StatusCode;
                                            ftpStatus.OperationException = null;
                                            ftpStatus.StatusDescription  = response.StatusDescription;

                                            lRemoteFile.FtpStatus = ftpStatus;
                                        }
                                        else
                                        {
                                            error = "Can't upload file on T2G Ftp Server. Server is not responding or input file is invalid, check error log.";
                                            objUploadFileDistributionRequest.Folder.UploadingState = UploadingStateEnum.Failed;
                                            return(error);
                                        }
                                    }
                            }
                            catch (Exception ex)
                            {
                                response = (FtpWebResponse)reqFTP.GetResponse();
                                if (response != null)
                                {
                                    FtpStatus ftpStatus = new FtpStatus();
                                    ftpStatus.FileName           = lRemoteFile.FilePath;
                                    ftpStatus.FtpStatusCode      = response.StatusCode;
                                    ftpStatus.OperationException = ex;
                                    ftpStatus.StatusDescription  = response.StatusDescription;

                                    lRemoteFile.FtpStatus = ftpStatus;

                                    LogManager.WriteLog(TraceType.ERROR, PIS.Ground.Core.Properties.Resources.ExFtpError, "PIS.Ground.Core.Utility.Upload", ex, EventIdEnum.GroundCore);
                                }
                            }
                            finally
                            {
                                if (response != null)
                                {
                                    response.Close();
                                }
                            }
                        }
                    }
                    else
                    {
                        error = "File " + lRemoteFile.FilePath + " does not exist.";
                        return(error);
                    }
                }
            }
            else
            {
                error = "Invalid Input parameter";
            }
            return(error);
        }
Example #21
0
        /// <summary>Uploads a file.</summary>
        /// <exception cref="FileNotFoundException">Thrown when the requested file is not present.</exception>
        /// <param name="state">The state.</param>
        private static void UploadFile(object state)
        {
            if (state is FtpState)
            {
                FtpState ftpState = state as FtpState;
                ftpState.Response = null;
                if (!string.IsNullOrEmpty(ftpState.RemoteFile.FileName) && ftpState.RemoteFile.Exists)
                {
                    //// Notify the server about the size of the uploaded file
                    ftpState.Request.ContentLength = ftpState.RemoteFile.Size;
                    //// The buffer size is set to 2kb
                    const int buffLength = 2048;
                    byte[]    buff       = new byte[buffLength];
                    int       contentLen;

                    try
                    {
                        //// Opens a file stream to read the file to be uploaded
                        Stream fs;
                        ftpState.RemoteFile.OpenStream(out fs);
                        if (fs != null)
                        {
                            using (fs)
                            {
                                fs.Seek(0, SeekOrigin.Begin);
                                //// Stream to which the file to be upload is written
                                using (Stream strm = ftpState.Request.GetRequestStream())
                                {
                                    //// Read from the file stream 2kb at a time
                                    contentLen = fs.Read(buff, 0, buffLength);
                                    //// Till Stream content ends
                                    while (contentLen != 0)
                                    {
                                        //// Write Content from the file stream to the FTP Upload Stream
                                        strm.Write(buff, 0, contentLen);
                                        contentLen = fs.Read(buff, 0, buffLength);
                                    }
                                }
                            }
                        }
                        else
                        {
                            string lErrorMessage = "Can't read file ";
                            lErrorMessage += ftpState.RemoteFile.FilePath;
                            FileNotFoundException lFNFEx = new FileNotFoundException(lErrorMessage, ftpState.RemoteFile.FilePath);
                            LogManager.WriteLog(TraceType.ERROR, lFNFEx.Message, "PIS.Ground.Core.Utility.FtpUtility.UploadFile", lFNFEx, EventIdEnum.GroundCore);
                            throw lFNFEx;
                        }

                        if (ftpState.Request != null)
                        {
                            ftpState.Response = (FtpWebResponse)ftpState.Request.GetResponse();
                            if (ftpState.Response.StatusCode != FtpStatusCode.ServiceNotAvailable && ftpState.Response.StatusCode != FtpStatusCode.ServiceTemporarilyNotAvailable)
                            {
                                ftpState.OperationComplete.Set();
                            }
                        }
                    }
                    catch (Exception ex)
                    {
                        ftpState.FtpStatus.OperationException = ex;
                        ftpState.OperationComplete.Set();

                        // Avoid logging error for ThreadAbortException
                        if (!(ex is ThreadAbortException))
                        {
                            LogManager.WriteLog(TraceType.ERROR, ex.Message, "PIS.Ground.Core.Utility.FtpUtility.UploadFile", ex, EventIdEnum.GroundCore);
                        }
                        else
                        {
                            LogManager.WriteLog(TraceType.DEBUG, ex.Message, "PIS.Ground.Core.Utility.FtpUtility.UploadFile", ex, EventIdEnum.GroundCore);
                        }
                    }
                }
            }
        }
Example #22
0
 //----------------------------------------------------------------------------------------------
 private static void SetupRequest(Uri target, FtpState state, string fileName, string user, string passwrd)
 {
     if (target.Scheme != Uri.UriSchemeFtp)
     {
         throw new Exception("UploadRequest: Target uri was not ftp");
     }
     state.mRequest = (FtpWebRequest)WebRequest.Create(target + @"/" + fileName);
     state.mRequest.Proxy = null;
     //
     // This example uses anonymous logon.
     // The request is anonymous by default; the credential does not have to be specified.
     // The example specifies the credential only to
     // control how actions are logged on the server.
     //
     if (user != null && user.Length != 0)
     {
         state.mRequest.Credentials = new NetworkCredential(user, passwrd); //"anonymous", "*****@*****.**");
     }
 }
Example #23
0
        private static void HandleFileTransfer(Uri serverUri, string filepath, bool up, string userName, string password, bool enableSSL)
        {
            if (serverUri.Scheme != Uri.UriSchemeFtp)
            {
                throw new ArgumentException(String.Format("{0} scheme is not ftp", serverUri.AbsoluteUri));
            }

            ManualResetEvent waitObject;

            FtpState      state   = new FtpState();
            FtpWebRequest request = (FtpWebRequest)WebRequest.Create(serverUri);

            request.EnableSsl = enableSSL;

            if (up)
            {
                request.Method = WebRequestMethods.Ftp.UploadFile;
            }
            else
            {
                request.Method = WebRequestMethods.Ftp.DownloadFile;
            }

            request.Credentials = new NetworkCredential(userName, password);

            // Store the request in the object that we pass into the
            // asynchronous operations.
            state.Request  = request;
            state.Argument = filepath;

            // Get the event to wait on.
            waitObject = state.OperationComplete;

            if (up)
            {
                // Asynchronously get the stream for the file contents.
                request.BeginGetRequestStream(
                    new AsyncCallback(EndGetStreamCallback),
                    state
                    );
            }
            else
            {
                request.BeginGetResponse(
                    new AsyncCallback(EndGetResponseCallback),
                    state
                    );
            }

            // Block the current thread until all operations are complete.
            waitObject.WaitOne();

            // The operations either completed or threw an exception.
            if (state.OperationException != null)
            {
                throw state.OperationException;
            }
            else
            {
                Utils.configLog("I", String.Format("The operation completed - {0}", state.StatusDescription));
            }
        }
        /// <summary>
        /// Control thread
        /// TODO: separate the functionalities into functions to reduce maintenance cost
        /// </summary>
        private void WorkerThread()
        {
            FtpCommand command;
            FtpState   state = FtpState.WaitUser;

            string tempName = null;         // store old name for "rename from" command
            string response;
            int    timeout = 0;

            try
            {
                while (m_IsAlive)
                {
                    if (m_IsDisposed)
                    {
                        break;
                    }
                    else if (!m_Welcomed)
                    {
                        response = "220 MyFTP " + System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString() +
                                   " Server [" + m_HostIp.ToString() + "] \r\n";
                        m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                        m_Welcomed = true;
                    }
                    else if (m_CommandSocket == null)
                    {
                        Logging.Print("Session socket has been closed.");
                        break;
                    }
                    else if (m_CommandSocket.Poll(1000, SelectMode.SelectRead))
                    {
                        if (m_CommandSocket.Available == 0)
                        {
                            Logging.Print("REMOTE DISCONNECT " + m_CommandSocket.RemoteEndPoint.ToString());
                            m_IsAlive = false;
                            break;
                        }
                        // read until find the end of a line
                        command = FtpCommandCreator.Create(ReadCommand());

                        if (command == null)
                        {
                            break;
                        }
                        else
                        {
                            switch (command.Type)
                            {
                            case FtpCommandType.User:
                                response = "331 " + command.Content + " login ok \r\n";
                                m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                state    = FtpState.WaitPwd;
                                tempName = command.Content;
                                break;

                            case FtpCommandType.Pass:
                                if (state != FtpState.WaitPwd)
                                {
                                    response = "332 Need Account for Login.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else
                                {
                                    UserAuthenticatorArgs args = new UserAuthenticatorArgs(tempName, command.Content);
                                    FtpListener.RaiseEvent(this, args);
                                    if (args.Result == UserAuthenticationResult.Approved)
                                    {
                                        User.UserName = tempName;
                                        User.PassWord = command.Content;
                                        response      = "230 access granted for " + User.UserName + ", restrictions apply. \r\n";
                                        m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                        state = FtpState.WaitCommand;
                                        break;
                                    }
                                    else
                                    {
                                        response = "530 Login incorrect. \r\n";
                                        m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                        state = FtpState.WaitCommand;
                                        break;
                                    }
                                }

                            case FtpCommandType.Cwd:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitUser)
                                {
                                    response = "332 Need Account for Login.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    if (command.Content == null)
                                    {
                                        response = m_BadSequence;
                                        m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                        break;
                                    }
                                    else
                                    {
                                        FtpListenerRequest request = new FtpListenerRequest(WebRequestMethodsEx.Ftp.ChangeDirectory, m_CurrentDirectory.Combine(command.Content).GetNetPath(), this);
                                        FtpListenerContext context = new FtpListenerContext(this, request);
                                        m_SendContext.AddContext(context);
                                        break;
                                    }
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Quit:
                                m_IsAlive = false;
                                CloseDataChannel();
                                response = "221 Goodbye.\r\n";
                                m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                m_CommandSocket.Close();
                                m_CommandSocket = null;
                                break;

                            case FtpCommandType.Pasv:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    CloseDataChannel();
                                    m_DataThread = new Thread(PassiveThread);
                                    m_DataThread.Start();
                                    m_DataReadyEvent.WaitOne();                    // wait until port has been successfully assigned

                                    byte[] addrs = m_HostIp.GetAddressBytes();

                                    int upper = m_HostPort / 256;
                                    int lower = m_HostPort % 256;
                                    if (addrs.Length == 4)     //IPv4
                                    {
                                        response = "227 Entering Passive Mode (";
                                        foreach (int i in addrs)
                                        {
                                            response += i.ToString() + ",";
                                        }
                                        response += upper.ToString() + "," + lower.ToString() + ")\r\n";
                                    }
                                    else     // currently do not support IPv6
                                    {
                                        throw new NotImplementedException("currently does not support IPv6");
                                    }
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Type:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    response = "200 Command OK.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.List:
                                if (!m_DataModeON)
                                {
                                    response = "425 Use PORT or PASV first.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    response = "150 Opening UTF8 mode data connection for *** \r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    FtpListenerRequest request = new FtpListenerRequest(WebRequestMethods.Ftp.ListDirectoryDetails, m_CurrentDirectory.Combine(command.Content).GetNetPath(), this);
                                    FtpListenerContext context = new FtpListenerContext(this, request);
                                    m_SendContext.AddContext(context);
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.NList:
                                if (!m_DataModeON)
                                {
                                    response = "425 Use PORT or PASV first.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    response = "150 Opening UTF8 mode data connection for *** \r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    FtpListenerRequest request = new FtpListenerRequest(WebRequestMethods.Ftp.ListDirectory, m_CurrentDirectory.Combine(command.Content).GetNetPath(), this);
                                    FtpListenerContext context = new FtpListenerContext(this, request);
                                    m_SendContext.AddContext(context);
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Port:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand && command.Content != null)
                                {
                                    CloseDataChannel();
                                    string[] epad = command.Content.Split(new char[] { ',' });
                                    if (epad.Length != 6)
                                    {
                                        response = "500 Invalid PORT command.\r\n";
                                        m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    }
                                    else
                                    {
                                        try
                                        {
                                            m_ClientIp = IPAddress.Parse(epad[0] + "." + epad[1] + "." + epad[2] + "." + epad[3]);

                                            m_ClientPort = Int32.Parse(epad[4]) * 256 + Int32.Parse(epad[5]);
                                            if (m_ClientPort <= 0 || m_ClientPort > 65535)
                                            {
                                                response = "500 Invalid PORT command.\r\n";
                                                m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                            }
                                            else
                                            {
                                                m_ActThreadW = true;
                                                m_DataThread = new Thread(ActiveThread);
                                                m_DataThread.Start();

                                                response = "200 PORT command successful.\r\n";
                                                m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                            }
                                        }
                                        catch (Exception)
                                        {
                                            response = "500 Invalid PORT command.\r\n";
                                            m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                        }
                                    }
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Sys:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    response = "215 System Type: EMIC\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Feature:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    response = "211-Features:\r\n SIZE\r\n211 End\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Pwd:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    response = "257 \"" + m_CurrentDirectory.GetNetPath() + "\" is the current directory. \r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Retr:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    if (!m_DataModeON)
                                    {
                                        response = "425 Use PORT or PASV first.\r\n";
                                        m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                        break;
                                    }
                                    response = "150 Opening BINARY mode data connection for " + command.Content + ". \r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    FtpListenerRequest request = new FtpListenerRequest(WebRequestMethods.Ftp.DownloadFile, m_CurrentDirectory.Combine(command.Content).GetNetPath(), this);
                                    FtpListenerContext context = new FtpListenerContext(this, request);
                                    m_SendContext.AddContext(context);
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Opts:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    if (command.Content == "utf8")
                                    {
                                        response = "213 Always in utf8 mode \r\n";
                                    }
                                    else
                                    {
                                        response = "550 Requested action not taken. Mode not support. \r\n";
                                    }
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Size:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    FtpListenerRequest request = new FtpListenerRequest(WebRequestMethods.Ftp.GetFileSize, m_CurrentDirectory.Combine(command.Content).GetNetPath(), this);
                                    FtpListenerContext context = new FtpListenerContext(this, request);
                                    m_SendContext.AddContext(context);
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Store:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    if (!m_DataModeON)
                                    {
                                        response = "425 Use PORT or PASV first.\r\n";
                                        m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                        break;
                                    }
                                    response = "150 Opening BINARY mode data connection for " + command.Content + ". \r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    FtpListenerRequest request = new FtpListenerRequest(WebRequestMethods.Ftp.UploadFile, m_CurrentDirectory.Combine(command.Content).GetNetPath(), this);
                                    FtpListenerContext context = new FtpListenerContext(this, request);
                                    m_SendContext.AddContext(context);
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Noop:
                                response = "200 NOOP command successful. \r\n";
                                m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                break;

                            case FtpCommandType.Delete:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    FtpListenerRequest request = new FtpListenerRequest(WebRequestMethods.Ftp.DeleteFile, m_CurrentDirectory.Combine(command.Content).GetNetPath(), this);
                                    FtpListenerContext context = new FtpListenerContext(this, request);
                                    m_SendContext.AddContext(context);
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.MkDir:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    FtpListenerRequest request = new FtpListenerRequest(WebRequestMethods.Ftp.MakeDirectory, m_CurrentDirectory.Combine(command.Content).GetNetPath(), this);
                                    FtpListenerContext context = new FtpListenerContext(this, request);
                                    m_SendContext.AddContext(context);
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Rmd:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    FtpListenerRequest request = new FtpListenerRequest(WebRequestMethods.Ftp.RemoveDirectory, m_CurrentDirectory.Combine(command.Content).GetNetPath(), this);
                                    FtpListenerContext context = new FtpListenerContext(this, request);
                                    m_SendContext.AddContext(context);
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Rnfr:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    FtpListenerRequest request = new FtpListenerRequest(WebRequestMethodsEx.Ftp.RenameFrom, m_CurrentDirectory.Combine(command.Content).GetNetPath(), this);
                                    FtpListenerContext context = new FtpListenerContext(this, request);
                                    m_SendContext.AddContext(context);
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            case FtpCommandType.Rnto:
                                if (state == FtpState.WaitPwd)
                                {
                                    response = "331 Need Password.\r\n";
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }
                                else if (state == FtpState.WaitCommand)
                                {
                                    FtpListenerRequest request = new FtpListenerRequest(WebRequestMethodsEx.Ftp.RenameTo, m_CurrentDirectory.Combine(command.Content).GetNetPath(), this);
                                    FtpListenerContext context = new FtpListenerContext(this, request);
                                    m_SendContext.AddContext(context);
                                    break;
                                }
                                else
                                {
                                    response = m_BadSequence;
                                    m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                    break;
                                }

                            default:
                                response = "502 Command not implemented. \r\n";
                                if (state == FtpState.WaitPwd)
                                {
                                    state = FtpState.WaitUser;
                                }
                                m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                                break;
                            }
                        }
                        // reset time out
                        timeout = 0;
                    }
                    else if (m_CommandSocket.Poll(1000, SelectMode.SelectError))
                    {
                        Logging.Print("Disconnected unproperly.");
                        break;
                    }
                    else
                    {
                        if (!m_Welcomed)
                        {
                            response = "220 MyFTP " + typeof(FtpListenerSession).Assembly.GetName().Version.ToString() +
                                       " Server [" + m_HostIp.ToString() + "] \r\n";
                            m_CommandSocket.Send(Encoding.UTF8.GetBytes(response));
                            m_Welcomed = true;
                        }
                        else
                        {
                            if (SessionTimeOut != -1)
                            {
                                if (timeout > SessionTimeOut)
                                {
                                    m_IsAlive = false;
                                    Logging.Print("Connection time out.");
                                    break;
                                }
                                timeout += 50;
                            }
                            Thread.Sleep(50);
                        }
                    }
                }
            }
            catch (SocketException se)
            {
                Logging.Print("Control Socket Exception : " + se.ErrorCode.ToString());
            }
            catch (IOException ioe)
            {
                Logging.Print("IOException: " + ioe.Message);
            }
            finally
            {
                m_IsAlive = false;
                if (m_CommandSocket != null)
                {
                    m_CommandSocket.Close();
                    m_CommandSocket = null;
                }
                if (m_ListenSocket != null)
                {
                    m_ListenSocket.Close();
                    m_CommandSocket = null;
                }
                Logging.Print("Client Disconnected.");
            }
        }