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C# UWP/WinRT Examples

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(C# UWP/WinRT) Multiple Hop SSH to SFTP

Demonstrates how to SFTP through an intermediate SSH server (multiple hop). The scheme looks like this:

Application => ServerSSH1 => ServerSFtp

The ConnectThroughSsh method is added in Chilkat version 9.5.0.55 to accomplish this task.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.Ssh ssh1 = new Chilkat.Ssh();

// Hostname may be an IP address or domain name:
string hostname = "192.168.1.111";
string port = 22;

// Connect directly to the 1st SSH server:
bool success = await ssh1.ConnectAsync(hostname,port);
if (success != true) {
    Debug.WriteLine(ssh1.LastErrorText);
    return;
}

// Authenticate using login/password:
success = await ssh1.AuthenticatePwAsync("myLogin","myPassword");
if (success != true) {
    Debug.WriteLine(ssh1.LastErrorText);
    return;
}

// Connect through the 1st SSH connection to reach a 2nd SSH server (for SFTP)
// Note: Any number of connections may be simultaneously tunneled through a single
// existing SSH connection.
Chilkat.SFtp sftp = new Chilkat.SFtp();

// Connect to some SSH/SFTP server through ssh1.
success = await sftp.ConnectThroughSshAsync(ssh1,"sftp.someremoteserver.com",22);
if (success != true) {
    Debug.WriteLine(sftp.LastErrorText);
    return;
}

// Authenticate with the SFTP server. 
success = await sftp.AuthenticatePwAsync("myLogin","myPassword");
if (success != true) {
    Debug.WriteLine(sftp.LastErrorText);
    return;
}

// After authenticating, the SFTP subsystem must be initialized:
success = await sftp.InitializeSftpAsync();
if (success != true) {
    Debug.WriteLine(sftp.LastErrorText);
    return;
}

// Upload from the local file to the SSH server.
// Important -- the remote filepath is the 1st argument,
// the local filepath is the 2nd argument;
string remoteFilePath = "hamlet.xml";
string localFilePath = "c:/temp/hamlet.xml";

success = await sftp.UploadFileByNameAsync(remoteFilePath,localFilePath);
if (success != true) {
    Debug.WriteLine(sftp.LastErrorText);
    return;
}

Debug.WriteLine("Success.");

// Close the connection with the SFTP server.(This closes the the tunnel through ssh1.)
// The connection with ssh1 is still alive, and may be used for more connections.
sftp.Disconnect();

// ...
// ...
// ...

ssh1.Disconnect();

 

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