Pascal (Lazarus/Delphi)

SFTP using SOCKS Proxy

See more SFTP Examples

Demonstrates how to connect to an SFTP/SSH server through a SOCKS4 or SOCKS5 proxy. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.SFtp;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  sftp: TSFtp;
  hostname: string;
  port: Integer;

begin
  success := False;

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

  sftp := TSFtp.Create;

  //  To use a SOCKS4 or SOCKS5 proxy, simply set the following
  //  properties prior to connecting:
  //  The SOCKS hostname may be a domain name or 
  //  IP address:
  sftp.SocksHostname := 'www.mysocksproxyserver.com';
  sftp.SocksPort := 1080;
  sftp.SocksUsername := 'myProxyLogin';
  sftp.SocksPassword := 'myProxyPassword';

  //  Set the SOCKS version to 4 or 5 based on the version
  //  of the SOCKS proxy server:
  sftp.SocksVersion := 5;

  //  Note: SOCKS4 servers only support usernames without passwords.
  //  SOCKS5 servers support full login/password authentication.

  //  Connect to the SSH server.  
  //  The standard SSH port = 22
  //  The hostname may be a hostname or IP address.
  hostname := 'sftp.example.com';
  port := 22;
  success := sftp.Connect(hostname,port);
  if (success <> True) then
    begin
      WriteLn(sftp.LastErrorText);
      Exit;
    end;

  //  Your application is now connected to an SFTP/SSH server 
  //  through a SOCKS4 or SOCKS5 proxy. 
  //  ...


  sftp.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.