Today in this article, we will see how to track progress of SFTP operation using C#.NET code.

We can easily display the progress of file upload or download in a progress bar with SSH.NET library-supported methods required for the SFTP operations.

We will explore this option using the SSH.NET library for .NET/.NET Core.

Getting access to all the files using the SSH.NET library is pretty simple.

Getting Started

Create any .NET Core application like a console application,

Add SSH.NET Nuget package as below,

Package Manager Console,

Install-Package SSH.NET -Version 2020.0.2

Note: Please use the latest version.

Here we need to follow the below high-level steps to either download or upload the file below,

• Connect SFTP server

• Calculate the file size to be uploaded.

• Initialize Progress variable

• Define a callback used for tracking the progress bar

Connect to SFTP using SFTPClient

SSH.NET provides SFTPClient class that lets you connect to the SFTP server securely and access files for

read, write, upload, or download purposes,

Below the sample code read the FTP file and write their name on the console.

 

using (var client = new SftpClient("****", "user", "****"))
            {
                client.Connect();
             }

Adding Progress bar – UploadFile SFTP operations

To implement a progress bar for file transfers using SFTPClient in C# with a callback mechanism, you can define a delegate and pass it as a callback parameter to the UploadFile.

Define a callback method

Let’s define the progress callback delegate,

Action progressBarCallback = (uploaded) =>
{
                    uploadedBytes = (long)uploaded;

                    // Calculate the progress percentage
                    progress = (int)((uploadedBytes * 100) / fileSize);

                    // Trackthe progress bar
                    TrackProgress(progress);
  };

Above Inside the event handlers, we calculate the progress percentage based on the total file size and the size of the uploaded or downloaded bytes.

Then, we call the UpdateProgressBar method to update and display the progress bar in the console.

Tracking Progress – SFTP Upload file

Here is the complete example for Tracking Progress – SFTP Upload file.

               // Create an SFTP client
                using (var sftpClient = new SftpClient("Host", "UserName", "Passowrd"))
                {
                    // Connect to the SFTP 
                    sftpClient.Connect();

                    // Calculate the file size
                    var fileSize = new FileInfo(localDirectoryFilePath).Length;

                    // Initialize the progress variables
                    long uploadedBytes = 0;
                    int progress = 0;

                    // Define the progress callback delegate
                    Action<ulong> progressBarCallback = (uploaded) =>
                    {
                        uploadedBytes = (long)uploaded;

                        // Calculate the progress percentage
                        progress = (int)((uploadedBytes * 100) / fileSize);

                        // Track the progress bar
                       TrackProgress(progress);

                    };

             using (var uplfileStream = System.IO.File.OpenRead(localDirectoryFilePath))
                {
                    sftpClient.UploadFile(uplfileStream, destinationPath, true, progressBarCallback );
                }

                    // Disconnect from the SFTP server
                    sftpClient.Disconnect();
                }
            }

Tracking Progress – DownLoadFile SFTP operations

Similarly, please see the below example for performing Download file operations.

            
using (var sftpClient = new SftpClient("Host, "User", "Pwd"))
{
      // Connect to the SFTP server
      sftpClient.Connect();
      // Calculate the file size
       var fileSize = sftpClient.GetAttributes(remoteBaseDirectory).Size;

            // Initialize the progress variables
            long downloadedBytes = 0;
            int progress = 0;

            // Define the progress callback delegate
            Action<ulong> progressCallback = (downloaded) =>
            {
                downloadedBytes = (long)downloaded;

                // Calculate the progress percentage
                progress = (int)((downloadedBytes * 100) / fileSize);

                 // Track the progress bar
                  TrackProgress(progress);
            };

            // Download the file with progress reporting
            sftpClient.DownloadFile(remoteBaseDirectory, File.OpenWrite(localDirectoryFilePath), progressCallback);
        }

Print the progress on the Console

The TrackProgressBar the method lets you print the progress percentage on Console or UI (if using UI display purposes) using the calculated progress percentage.

static void TrackProgressBar(int progress)
    {
        Console.Write("\r[{0}{1}] {2}%", new string('#', progress / 10), new string('-', 10 - (progress / 10)), progress);
    }

That’s all, as we can see we can leverage a callback parameter to the UploadFile and DownloadFile methods as supported to track the progress of a long-awaited operation.

Do you have any comments or ideas or any better suggestions to share?

Please sound off your comments below.

Happy Coding !!

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The post How to Track Progress of SFTP File Upload/Download in C#.NET first appeared on TheCodeBuzz.

Issue Description

Using FileZilla gives FTP Connection timeout issue every after 20 seconds.

Resolution:

Please note that FileZilla has a default timeout setup which is only 20 seconds.

This time frame works mostly for the small files. If you have bigger files size like .png or .mpeg or .svg files etc such file transfer needs more time to transfer the file.

I had a file with a size of over 20k bytes as shown below,

To fix such issues, you simply need to increase the timeout by following the below steps,

• On Windows, click Edit >> Settings

• Under [Connection], update timeout in seconds to the max as per your requirements (default is 20 seconds).

• Click [OK] to save your changes and connect again.

Do you have any comments or ideas or any better suggestions to share?

Please sound off your comments below.

Happy Coding !!

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The post FileZilla FTP Connection timeout issue first appeared on TheCodeBuzz.

Today in this article, we will see how to perform FTP SSH.NET – Move or Archive Files with examples using C#.NET code.

We will explore this option using the SSH.NET library for .NET/.NET Core.

Below is the list of high-level features supported by the SSH library (but not limited to),

• Provide SFTP functionality for both synchronous and asynchronous operations.

• Provides SCP functionality

• Execution of SSH command using both synchronous and asynchronous methods

• Provide a status report for upload and download SFTP operations to allow accurate progress bar implementation.

• Supports public-key, password, and keyboard-interactive authentication methods.

• Supports two-factor or higher authentication

• Supports SOCKS4, SOCKS5, and HTTP Proxy

Getting access to all the files using the SSH.NET library is pretty simple.

Getting Started

Create any .NET Core application like a console application,

Add SSH.NET Nuget package as below,

Package Manager Console,

Install-Package SSH.NET -Version 2020.0.2

Note: Please use the latest version.

Connect to SFTP using SFTPClient

SSH.NET provides SFTPClient class that lets you connect to the SFTP server securely and access files for

read, write, upload, or download purposes,

Below the sample code read the FTP file and write their name on the console.

 

using (var client = new SftpClient("****", "user", "****"))
            {
                client.Connect();
                ListDirectory(client, ".");
                foreach (var file in files)
                {
                  Console.WriteLine(file.FullName);
                }
             }

The above ListDirectory uses the default path to fetch a file from the SFTP server.

File Move Archive using FTP

File move or archive file from a remote file path is pretty simple once the connection is established successfully.

Use the below code to Move or Archive the file via SftpClient

 

using (var client = new SftpClient("****", "user", "****"))
            {
                client.Connect();
                ListDirectory(client, ".");
                foreach (var file in files)
                {
                Console.WriteLine(file.FullName);

                var fileMove = client.Get(file.FullName);
                fileMove.MoveTo(destinationPath);

                }

               client.Disconnect();
             }

In the above code,

destinationPath – This is the file path where the file will be moved via SFTP/FTP.

Get method gives a reference of the file from the remote location by returning Renci.SshNet.Sftp.SftpFile file object.

MoveTo– Moves a specified file to a new location on a remote machine. You can use the same file name or provide a name of your choice.

Copy OR Move File using SSH.NET using DownloadFile or Rename

One can easily use the DownloadFile or Rename method to copy or archive the files as explained below in the code.

using (var client = new SftpClient(host, username, password))
        {
            client.Connect();

            using (var fileStream = System.IO.File.Create(localDestinationPath))
            {
                client.DownloadFile(remoteFilePath, fileStream);
            }

            client.Disconnect();
        }

OR

using (var client = new SftpClient(host, username, password))
        {
            client.Connect();

            // Rename the file to move it
            client.RenameFile(sourceFilePath, destinationFilePath);

            client.Disconnect();
        }

FTP how to get a list of all files in a Path to Move?

Below is the complete implementation for the ListDirectory() custom method which returns all the files available from the specified root folder and subfolders.

Do you have any comments or ideas or any better suggestions to share?

Please sound off your comments below.

Happy Coding !!

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The post FTP SSH.NET – Move or Archive Files with examples first appeared on TheCodeBuzz.

Today in this article, we will see how to Retrieve a file from a server via SFTP or FTP – .NET C#.

We will use a .NET library called SSH.NET to perform SFTP Get a list of Files recursively. SSH.NET library works fine in regular .NET and .NET core seamlessly.

SSH.NET is a Secure Shell (SSH-2) library for .NET which provides the capability to execute various SSH commands and provides SFTP ( Secured File transfer) features like Upload or download.

Below is the list of high-level features supported by the SSH library (but not limited to),

• Provide SFTP functionality for both synchronous and asynchronous operations.

• Provides SCP functionality

• Execution of SSH command using both synchronous and asynchronous methods

• Provide a status report for upload and download SFTP operations to allow accurate progress bar implementation.

• Supports public-key, password, and keyboard-interactive authentication methods.

• Supports two-factor or higher authentication

• Supports SOCKS4, SOCKS5, and HTTP Proxy

Getting access to all the files using the SSH.NET library is pretty simple.

Getting Started – Install Nuget SSH.NET

Create any .NET Core application like a console application,

Add SSH.NET Nuget package as below,

Package Manager Console,

Install-Package SSH.NET -Version 2020.0.2

Note: Please use the latest version

Connect to SFTP using C# .NET- SFTPClient

SSH.NET provides a simple class SFTPClient which lets you connect to the SFTP server securely and access files for

read, write, upload, or download purposes,

 

using (var client = new SftpClient("SFTP server IP", "username", "password"))
            {
                client.Connect();
                Console.WriteLine("Connected to host");
                client.ChangeDirectory(remoteBaseDirectory);

                Console.WriteLine("Changed directory to {0}", remoteBaseDirectory);
                Console.WriteLine("Listing directory:");

                ListDirectory(client, ".");
                foreach (var file in files)
                {
                  Console.WriteLine(file.FullName);
                }
             }

Above ChangeDirectory() method setup the remoteBaseDirectory specified path as the base path for the recursive function to get all files from the main and subfolder.

If not used, the default location will be used as the base path.

SFTP – Get a list of all files

Below is the complete implementation for the ListDirectory() custom method which returns all the files available from the specified root folder and subfolders.

The above method once executed, return all the files from the provided root folder.

SFTP Read file and download it

Let’s now read the FTP file iteratively.

Below we are reading each file from the FTP location and downloading it to the local or destination folder.

       foreach (var file in files)
                {
                    Console.WriteLine(file.FullName);
                    using (Stream fileStream = File.Create($"{destinationPath}{"/"}{ 
                    file.Name}"))
                    {
                        client.DownloadFile(file.FullName, fileStream);
                        
                    }
              }  

Where “destinationPath” is your custom path where you want to download/store the file

References :

• Powershell Upload, Download file Google Cloud Storage Bucket

Do you have any comments or ideas or any better suggestions to share?

Please sound off your comments below.

Happy Coding !!

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The post Retrieve a file from a server via SFTP-.NET C# first appeared on TheCodeBuzz.