KnownHosts.cs :  » Network-Clients » SharpSSH » Tamir » SharpSsh » jsch » examples » C# / CSharp Open Source

Home
C# / CSharp Open Source
1.2.6.4 mono .net core
2.2.6.4 mono core
3.Aspect Oriented Frameworks
4.Bloggers
5.Build Systems
6.Business Application
7.Charting Reporting Tools
8.Chat Servers
9.Code Coverage Tools
10.Content Management Systems CMS
11.CRM ERP
12.Database
13.Development
14.Email
15.Forum
16.Game
17.GIS
18.GUI
19.IDEs
20.Installers Generators
21.Inversion of Control Dependency Injection
22.Issue Tracking
23.Logging Tools
24.Message
25.Mobile
26.Network Clients
27.Network Servers
28.Office
29.PDF
30.Persistence Frameworks
31.Portals
32.Profilers
33.Project Management
34.RSS RDF
35.Rule Engines
36.Script
37.Search Engines
38.Sound Audio
39.Source Control
40.SQL Clients
41.Template Engines
42.Testing
43.UML
44.Web Frameworks
45.Web Service
46.Web Testing
47.Wiki Engines
48.Windows Presentation Foundation
49.Workflows
50.XML Parsers
C# / C Sharp
C# / C Sharp by API
C# / CSharp Tutorial
C# / CSharp Open Source » Network Clients » SharpSSH 
SharpSSH » Tamir » SharpSsh » jsch » examples » KnownHosts.cs
using System;
using System.IO;
using System.Windows.Forms;

/* KnownHosts.cs
 * ====================================================================
 * The following example was posted with the original JSch java library,
 * and is translated to C# to show the usage of SharpSSH JSch API
 * ====================================================================
 * */
namespace Tamir.SharpSsh.jsch.examples{
  /// <summary>
  /// This program will demonstrate the 'known_hosts' file handling.
  /// You will be asked username, hostname, a path for 'known_hosts' and passwd. 
  /// If everything works fine, you will get the shell prompt.
  /// In current implementation, jsch only reads 'known_hosts' for checking
  /// and does not modify it.
  /// </summary>
  public class KnownHosts
  {
    public static void Main(String[] arg)
    {
      try
      {
        //Get the "known hosts" filename from the user
        Console.WriteLine("Please select your 'known_hosts' from the poup window...");
        String file = InputForm.GetFileFromUser("Choose your known_hosts(ex. ~/.ssh/known_hosts)");
        Console.WriteLine("You chose "+file+".");
        //Create a new JSch instance
        JSch jsch=new JSch();
        //Set the known hosts file
        jsch.setKnownHosts(file);        

        //Get the KnownHosts repository from JSchs
        HostKeyRepository hkr=jsch.getHostKeyRepository();

        //Print all known hosts and keys
        HostKey[] hks=hkr.getHostKey();
        HostKey hk;
        if(hks!=null)
        {
          Console.WriteLine();
          Console.WriteLine("Host keys in "+hkr.getKnownHostsRepositoryID()+":");
          for(int i=0; i<hks.Length; i++)
          {
            hk=hks[i];
            Console.WriteLine(hk.getHost()+" "+
              hk.getType()+" "+
              hk.getFingerPrint(jsch));
          }
          Console.WriteLine("");
        }

        //Now connect to the remote server...

        //Prompt for username and server host
        Console.WriteLine("Please enter the user and host info at the popup window...");
        String host = InputForm.GetUserInput
          ("Enter username@hostname",
          Environment.UserName+"@localhost");
        String user=host.Substring(0, host.IndexOf('@'));
        host=host.Substring(host.IndexOf('@')+1);

        //Create a new SSH session
        Session session=jsch.getSession(user, host, 22);

        // username and password will be given via UserInfo interface.
        UserInfo ui=new MyUserInfo();
        session.setUserInfo(ui);

        //Connect to remote SSH server
        session.connect();

        //Print the host key info
        //of the connected server:
        hk=session.getHostKey();
        Console.WriteLine("HostKey: "+
          hk.getHost()+" "+
          hk.getType()+" "+
          hk.getFingerPrint(jsch));
      
        //Open a new Shell channel on the SSH session
        Channel channel=session.openChannel("shell");

        //Redirect standard I/O to the SSH channel
        channel.setInputStream(Console.OpenStandardInput());
        channel.setOutputStream(Console.OpenStandardOutput());

        //Connect the channel
        channel.connect();

        Console.WriteLine("-- Shell channel is connected using the {0} cipher", 
          session.getCipher());

        //Wait till channel is closed
        while(!channel.isClosed())
        {
          System.Threading.Thread.Sleep(500);
        }

        //Disconnect from remote server
        channel.disconnect();
        session.disconnect();
      }
      catch(Exception e)
      {
        Console.WriteLine(e);
      }
    }

    /// <summary>
    /// A user info for getting user data
    /// </summary>
    public class MyUserInfo : UserInfo
    {
      /// <summary>
      /// Holds the user password
      /// </summary>
      private String passwd;

      /// <summary>
      /// Returns the user password
      /// </summary>
      public String getPassword(){ return passwd; }

      /// <summary>
      /// Prompt the user for a Yes/No input
      /// </summary>
      public bool promptYesNo(String str)
      {
        return InputForm.PromptYesNo(str);
      }
      
      /// <summary>
      /// Returns the user passphrase (passwd for the private key file)
      /// </summary>
      public String getPassphrase(){ return null; }

      /// <summary>
      /// Prompt the user for a passphrase (passwd for the private key file)
      /// </summary>
      public bool promptPassphrase(String message){ return true; }

      /// <summary>
      /// Prompt the user for a password
      /// </summary>
      public bool promptPassword(String message)
      {
        passwd=InputForm.GetUserInput(message, true);
        return true;
      }

      /// <summary>
      /// Shows a message to the user
      /// </summary>
      public void showMessage(String message)
      {
        InputForm.ShowMessage(message);
      }
    }
  }
}
www.java2v.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.