Dart

SCP Upload to a Specific Remote Directory

See more SCP Examples

Demonstrates how to upload a file using the SCP protocol (Secure Copy Protocol over SSH). The file is uploaded to a specific remote directory. It can be either a path relative to the HOME directory of the SSH user account, or an absolute path on the remote filesystem. Obviously, in both cases the SSH user account must have permission to create or overwrite a file in the specified directory. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  final ssh = CkSsh();

  // Connect to an SSH server:

  // Hostname may be an IP address or hostname:
  final hostname = 'www.some-ssh-server.com';
  final port = 22;

  try {
    ssh.connect(hostname, port);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Wait a max of 5 seconds when reading responses..
  ssh.idleTimeoutMs = 5000;

  // Authenticate using login/password:
  try {
    ssh.authenticatePw('myLogin', 'myPassword');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Once the SSH object is connected and authenticated, we use it
  // as the underlying transport in our SCP object.
  final scp = CkScp();

  try {
    scp.useSsh(ssh);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // This uploads a file to the "uploads/text" directory relative to the HOME
  // directory of the SSH user account.  For example, if the HOME directory is /home/chilkat,
  // then this uploads to /home/chilkat/uploads/text/test.txt
  // Note: The remote target directory must already exist on the SSH server.
  var remotePath = 'uploads/text/test.txt';
  var localPath = '/home/bob/test.txt';
  try {
    scp.uploadFile(localPath, remotePath);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // This upload fully specifies the absolute remote path.
  remotePath = '/home/chilkat/junk/abc/hamlet.xml';
  localPath = '/home/bob/hamlet.xml';
  try {
    scp.uploadFile(localPath, remotePath);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('SCP upload file success.');

  // Disconnect
  ssh.disconnect();
}