开源Granados介绍-SSH连接远程Linux服务器(C#)

 Granados是一个基于.NET的SSH客户端库。它有以下特点：
1.Granados是一个C#的开源项目。源码地址： 点击进入
2.同时支持SSH1和SSH2。
3.Granados实现了AES, Blowfish, TripleDES, RSA, DSA等加密验证算法。
4.实现TCP协议连接。

如何使用Granados库

可惜的是Granados的文档几乎没有！所以只有从它的源码找到它的测试代码来看。总结步骤为：

1.工程中添加Routrek.granados.dll(下载的包里有)的引用。

2.添加Reader类，实现ISSHConnectionEventReceiver和ISSHChannelEventReceiver接口。首先引用命名空间：

using System.Threading;
using System.Diagnostics;
using System.Net;
using System.Net.Sockets;
using Routrek.Crypto;
using Routrek.SSHC;
using Routrek.SSHCV1;
using Routrek.SSHCV2;
using Routrek.Toolkit;
using Routrek.PKI;

Reader类实现如下：

class Reader : ISSHConnectionEventReceiver, ISSHChannelEventReceiver
    {
        public SSHConnection _conn;
        public bool _ready;

        public void OnData(byte[] data, int offset, int length)
        {
            string sss = Encoding.ASCII.GetString(data, offset, length);
            MessageBox.Show(sss);
        }
        public void OnDebugMessage(bool always_display, byte[] data)
        {
            Debug.WriteLine("DEBUG: " + Encoding.ASCII.GetString(data));
        }
        public void OnIgnoreMessage(byte[] data)
        {
            Debug.WriteLine("Ignore: " + Encoding.ASCII.GetString(data));
        }
        public void OnAuthenticationPrompt(string[] msg)
        {
            Debug.WriteLine("Auth Prompt " + msg[0]);
        }

        public void OnError(Exception error, string msg)
        {
            Debug.WriteLine("ERROR: " + msg);
        }
        public void OnChannelClosed()
        {
            Debug.WriteLine("Channel closed");
            _conn.Disconnect("");
            //_conn.AsyncReceive(this);
        }
        public void OnChannelEOF()
        {
            _pf.Close();
            Debug.WriteLine("Channel EOF");
        }
        public void OnExtendedData(int type, byte[] data)
        {
            Debug.WriteLine("EXTENDED DATA");
        }
        public void OnConnectionClosed()
        {
            Debug.WriteLine("Connection closed");
        }
        public void OnUnknownMessage(byte type, byte[] data)
        {
            Debug.WriteLine("Unknown Message " + type);
        }
        public void OnChannelReady()
        {
            _ready = true;
        }
        public void OnChannelError(Exception error, string msg)
        {
            Debug.WriteLine("Channel ERROR: " + msg);
        }
        public void OnMiscPacket(byte type, byte[] data, int offset, int length)
        {
        }

        public PortForwardingCheckResult CheckPortForwardingRequest(string host, int port, string originator_host, int originator_port)
        {
            PortForwardingCheckResult r = new PortForwardingCheckResult();
            r.allowed = true;
            r.channel = this;
            return r;
        }
        public void EstablishPortforwarding(ISSHChannelEventReceiver rec, SSHChannel channel)
        {
            _pf = channel;
        }

        public SSHChannel _pf;
    }

3.好的，现在来测试一下：

class Program
    {
        private static SSHConnection _conn;
        static void Main(string[] args)
        {
            SSHConnectionParameter f = new SSHConnectionParameter();
            f.UserName = "root";
            f.Password = "****";
            f.Protocol = SSHProtocol.SSH2;
            f.AuthenticatiOnType= AuthenticationType.Password;
            f.WindowSize = 0x1000;
            Reader reader = new Reader();
            Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            s.Connect(new IPEndPoint(IPAddress.Parse("192.168.x.x"), 22));
            _cOnn= SSHConnection.Connect(f, reader, s);
            reader._cOnn= _conn;
            SSHChannel ch = _conn.OpenShell(reader);
            reader._pf = ch;
            SSHConnectionInfo ci = _conn.ConnectionInfo;

            Thread.Sleep(1000);
            
            byte[] b = new byte[1];
            while (true)
            {
                int input = System.Console.Read();
                b[0] = (byte)input;
                reader._pf.Transmit(b);
            }

        }
    }

4.执行效果如下：

5.如果你需要快速的执行某些指定的命令，则可以把上面的：

byte[] b = new byte[1];
  while (true)
{
      int input = System.Console.Read();
      b[0] = (byte)input;
      reader._pf.Transmit(b);
 }

替换为：

string cmd = "vi xxx.txt\n";
byte[] data = (new UnicodeEncoding()).GetBytes(cmd);
reader._pf.Transmit(data);

6.执行一般命令没问题，执行top命令会返回很多无法识别的字符，不知道是什么原因造成的。刚开始想写在web里的，但是，不等ondata()数据接收完毕连接就会断开，就费了点事情在winform中实现，

   public string ssh_conn(string ip, string root, string pass, string command)
        {
          
             SshStream ssh = new SshStream(ip, root, pass);
             ssh.Prompt = "#";
             ssh.RemoveTerminalEmulatiOnCharacters= true;
             //Writing to the SSH channel
             string respOnse= ssh.ReadResponse();
             ssh.Write(command);
             ssh.Flush();
             ssh.Write("/n");
             //Reading from the SSH channel
              respOnse= ssh.ReadResponse();
              MessageBox.Show(response);
             return response;
           
        }