Cómo crear un cliente SSH con Xamarin

Para poder trabajar con SSH lo primero que necesitamos es tener un servidor al cual podamos acceder mediante este protocolo. Si no sabes como hacer esto, en un post anterior expliqué cómo acceder a un servidor Synology NAS por SSH.

Para poder hacer las conexiones por SSH se han utilizado dos librerías:

SSH .NET (gratuita)
Rebex SSH (de pago)

Las dos básicamente tienen las mismas funcionalidades, exceptuando que Rebex confirma que tiene compatibilidad con Xamarin y dispone de métodos asíncronos en todos sus comandos.

Antes de poner todo el código de la aplicación voy a mostraros cómo sería la versión final de la App:

Para realizarlo todo de una manera mas cómoda he escrito todo en la misma clase. Lo mas recomendable es hacer una clase diferente con aquellas funciones que se van a repetir. A continuación muestro el código de la aplicación:

Diseño

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
	android:orientation="vertical"
	android:padding="8dp"
	android:layout_gravity="center_horizontal"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:showIn="@layout/activity_main">

	<LinearLayout
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:orientation="horizontal">

			<android.support.design.widget.TextInputLayout
				xmlns:android="http://schemas.android.com/apk/res/android"
				android:layout_width="0dp"
				android:layout_weight="70"
				android:layout_height="wrap_content">

				  <EditText
						android:id="@+id/hostname"
						android:layout_width="match_parent"
						android:layout_height="wrap_content"
						android:singleLine="true"
						android:inputType="text"
						android:textColor="@android:color/black"
						android:hint="Hostname"/>

			</android.support.design.widget.TextInputLayout>

			<android.support.design.widget.TextInputLayout
				xmlns:android="http://schemas.android.com/apk/res/android"
				android:layout_width="0dp"
				android:layout_weight="30"
				android:layout_height="wrap_content">

				  <EditText
						android:id="@+id/port"
						android:layout_width="match_parent"
						android:layout_height="wrap_content"
						android:singleLine="true"
						android:inputType="number"
						android:maxLength="5"
						android:textColor="@android:color/black"
						android:hint="Port"/>

			</android.support.design.widget.TextInputLayout>

	</LinearLayout>

	<android.support.design.widget.TextInputLayout
		xmlns:android="http://schemas.android.com/apk/res/android"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:layout_marginTop="16dp">

		  <EditText
			android:id="@+id/user"
			android:layout_width="fill_parent"
			android:layout_height="wrap_content"
			android:singleLine="true"
			android:inputType="text"
			android:textColor="@android:color/black"
			android:hint="User"/>

	</android.support.design.widget.TextInputLayout>

	<android.support.design.widget.TextInputLayout
		xmlns:android="http://schemas.android.com/apk/res/android"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:layout_marginTop="16dp"
		app:passwordToggleEnabled="true">

		  <EditText
			android:id="@+id/password"
			android:layout_width="fill_parent"
			android:layout_height="wrap_content"
			android:singleLine="true"
			android:inputType="textPassword"
			android:textColor="@android:color/black"
			android:hint="Password"/>

	</android.support.design.widget.TextInputLayout>

	<LinearLayout
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:orientation="horizontal">

		<Button
			android:id="@+id/btnConnect"
			android:layout_width="0dp"
			android:layout_height="wrap_content"
			android:layout_weight="40"
			android:layout_marginTop="16dp"
			android:text="Conectar"
			android:textAllCaps="false"/>

		<Button
			android:id="@+id/btnDisconnect"
			android:layout_width="0dp"
			android:layout_weight="40"
			android:layout_height="wrap_content"
			android:layout_marginTop="16dp"
			android:enabled="false"
			android:text="Desconectar"
			android:textAllCaps="false"/>

		<Button
			android:id="@+id/btnBack"
			android:layout_width="0dp"
			android:layout_weight="20"
			android:layout_height="wrap_content"
			android:layout_marginTop="16dp"
			android:enabled="false"
			android:text="Volver"
			android:textAllCaps="false"/>
	</LinearLayout>

	<ListView
		android:id="@+id/listView"
		android:layout_marginTop="8dp"
		android:layout_width="match_parent"
		android:layout_height="match_parent"/>

</LinearLayout>

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<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

android:padding="8dp"

android:layout_gravity="center_horizontal"

app:layout_behavior="@string/appbar_scrolling_view_behavior"

tools:showIn="@layout/activity_main">

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="horizontal">

<android.support.design.widget.TextInputLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="0dp"

android:layout_weight="70"

android:layout_height="wrap_content">

<EditText

android:id="@+id/hostname"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:singleLine="true"

android:inputType="text"

android:textColor="@android:color/black"

android:hint="Hostname"/>

</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="0dp"

android:layout_weight="30"

android:layout_height="wrap_content">

<EditText

android:id="@+id/port"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:singleLine="true"

android:inputType="number"

android:maxLength="5"

android:textColor="@android:color/black"

android:hint="Port"/>

</android.support.design.widget.TextInputLayout>

</LinearLayout>

<android.support.design.widget.TextInputLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_marginTop="16dp">

<EditText

android:id="@+id/user"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:singleLine="true"

android:inputType="text"

android:textColor="@android:color/black"

android:hint="User"/>

</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_marginTop="16dp"

app:passwordToggleEnabled="true">

<EditText

android:id="@+id/password"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:singleLine="true"

android:inputType="textPassword"

android:textColor="@android:color/black"

android:hint="Password"/>

</android.support.design.widget.TextInputLayout>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="horizontal">

<Button

android:id="@+id/btnConnect"

android:layout_width="0dp"

android:layout_height="wrap_content"

android:layout_weight="40"

android:layout_marginTop="16dp"

android:text="Conectar"

android:textAllCaps="false"/>

<Button

android:id="@+id/btnDisconnect"

android:layout_width="0dp"

android:layout_weight="40"

android:layout_height="wrap_content"

android:layout_marginTop="16dp"

android:enabled="false"

android:text="Desconectar"

android:textAllCaps="false"/>

<Button

android:id="@+id/btnBack"

android:layout_width="0dp"

android:layout_weight="20"

android:layout_height="wrap_content"

android:layout_marginTop="16dp"

android:enabled="false"

android:text="Volver"

android:textAllCaps="false"/>

</LinearLayout>

<ListView

android:id="@+id/listView"

android:layout_marginTop="8dp"

android:layout_width="match_parent"

android:layout_height="match_parent"/>

</LinearLayout>

Código

using System;
using System.Collections.Generic;
using Acr.UserDialogs;
using Android.App;
using Android.OS;
using Android.Support.V7.App;
using Android.Views;
using Android.Widget;
using Rebex.Net;
using Rebex.TerminalEmulation;
using Renci.SshNet;
using SSH.Operations;

namespace SSH
{
    [Activity(Label = "@string/app_name", Theme = "@style/AppTheme.NoActionBar", MainLauncher = true)]

    public class MainActivity : AppCompatActivity
    {
        EditText hostName, user, password, port;
        Button btnConnect, btnDisconnect, btnBack;
        SshClient client;
        Spinner spinner;
        Ssh ssh;
        ListView list;
        String path;
        String spinnerSelected;
        Scripting scripting;


        protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);
            SetContentView(Resource.Layout.activity_main);

            UserDialogs.Init(this);
            Rebex.Licensing.Key = Constants.RebexKey;

            Android.Support.V7.Widget.Toolbar toolbar = FindViewById<Android.Support.V7.Widget.Toolbar>(Resource.Id.toolbar);
            SetSupportActionBar(toolbar);

            Instancias();
            Acciones();
        }

        private void Instancias()
        {
            hostName = FindViewById<EditText>(Resource.Id.hostname);
            user = FindViewById<EditText>(Resource.Id.user);
            port = FindViewById<EditText>(Resource.Id.port);
            password = FindViewById<EditText>(Resource.Id.password);
            btnConnect = FindViewById<Button>(Resource.Id.btnConnect);
            btnDisconnect = FindViewById<Button>(Resource.Id.btnDisconnect);
            btnBack = FindViewById<Button>(Resource.Id.btnBack);
            list = FindViewById<ListView>(Resource.Id.listView);
            spinner = FindViewById<Spinner>(Resource.Id.spinner);
        }

        private void Acciones()
        {
            btnConnect.Click += OnConnectSSH;
            btnDisconnect.Click += OnDisconnectSSH;
            btnBack.Click += OnBackClick;
            list.ItemClick += OnListClicked;
            spinner.ItemSelected += OnSpinnerCLick;
        }

        //Pulsacion del spinner para cambiar de libreria SSH
        private void OnSpinnerCLick(object sender, AdapterView.ItemSelectedEventArgs e)
        {
            spinnerSelected = spinner.GetItemAtPosition(e.Position).ToString();
        }

        // Boton para volver atras
        private void OnBackClick(object sender, EventArgs e)
        {
            
            if (spinnerSelected.Equals(GetString(Resource.String.rebexssh)))
                BackDirectoryRebex();

            else if (spinnerSelected.Equals(GetString(Resource.String.sshnet)))
                BackDirectorySSH();
                 
        }

        // Seleccion de la lista de directorios o ficheros
        private void OnListClicked(object sender, AdapterView.ItemClickEventArgs e)
        {
            
            String selected = list.GetItemAtPosition(e.Position).ToString();

            if (selected.Contains("."))
            {
                Toast.MakeText(this, "No se puede abrir el archivo", ToastLength.Short).Show();
                return;
            }

            string directory = FormatedPath(selected);

            if (spinnerSelected.Equals(GetString(Resource.String.rebexssh)))
                ChangeDirectoryRebex(directory);

            else if (spinnerSelected.Equals(GetString(Resource.String.sshnet)))
                ChangeDirectorySSH(directory);
            
        }

        // Desconectar cliente dependiendo de la librería
        private void OnDisconnectSSH(object sender, EventArgs e)
        {
            try
            {

                if (spinnerSelected.Equals(GetString(Resource.String.rebexssh)))
                {
                    ssh.Disconnect();

                    if (!ssh.IsConnected)
                    {
                        DisconnectSSH();
                        Toast.MakeText(this, "Cliente desconectado", ToastLength.Short).Show();
                    }
                }
                    

                else if (spinnerSelected.Equals(GetString(Resource.String.sshnet)))
                {
                    client.Disconnect();

                    if (!client.IsConnected)
                    {
                        DisconnectSSH();
                        Toast.MakeText(this, "Cliente desconectado", ToastLength.Short).Show();
                    }
                }
                    

            }
            catch (Exception ex)
            {
                Toast.MakeText(this, ex.Message, ToastLength.Long).Show();
            }
        }

        private void DisconnectSSH()
        {
            list.Adapter = null;
            btnDisconnect.Enabled = false;
            btnBack.Enabled = false;
            btnConnect.Enabled = true;
            path = String.Empty;
        }

        // Conectar dependiendo de la libreria
        private void OnConnectSSH(object sender, EventArgs e)
        {
            // Obtener los datos introducidos
            var _hostName = hostName.Text;
            var _user = user.Text;
            var _password = password.Text;
            var _port = port.Text;

            //SSH .NET
            client = new SshClient(_hostName, Int32.Parse(_port), _user, _password);

            //Rebex SSH
            ssh = new Rebex.Net.Ssh();
            
            try
            {
                if (spinnerSelected.Equals(GetString(Resource.String.rebexssh)))
                    ClientConnectRebex(ssh);

                else if (spinnerSelected.Equals(GetString(Resource.String.sshnet)))
                    ClientConnect(client);

            }
            catch (Exception ex)
            {
                Toast.MakeText(this, ex.Message, ToastLength.Short).Show();
                btnConnect.Enabled = true;
            }
        }

        // Conectar el cliente con la libreria SSH .NET
        private void ClientConnect(SshClient client)
        {

            client.Connect();

            if (client.IsConnected)
            {
                Toast.MakeText(this, "Cliente conectado", ToastLength.Short).Show();
                btnDisconnect.Enabled = true;
                btnBack.Enabled = true;
                btnConnect.Enabled = false;
            }

            string answer = client.RunCommand("ls").Result;
            string[] words = answer.Split('\n');

            path = FormatedPath(client.RunCommand("pwd").Result);

            List<string> temp = new List<string>();
            foreach (var item in words)
            {
                if (!String.IsNullOrEmpty(item))
                    temp.Add(item);
            }

            RellenarLista(temp, list);
        }

        // Conectar el cliente con la libreria Rebex SSH
        private void ClientConnectRebex(Rebex.Net.Ssh ssh)
        {

            ssh.Connect(hostName.Text, Int32.Parse(port.Text));
            ssh.Login(user.Text, password.Text);

            if (ssh.IsConnected)
            {
                Toast.MakeText(this, "Cliente conectado", ToastLength.Short).Show();
                btnDisconnect.Enabled = true;
                btnBack.Enabled = true;
                btnConnect.Enabled = false;
            }

            scripting = ssh.StartScripting();
            scripting.DetectPrompt();
            scripting.SendCommand("ls");

            string line = scripting.ReadUntilPrompt();
            string[] words = line.Split(' ');

            List<string> temp = new List<string>();
            foreach (var item in words)
            {
                if (!String.IsNullOrEmpty(item))
                    temp.Add(item);
            }

            RellenarLista(temp, list);

        }

        // Funcion para cambiar el directorio en Rebex SSH
        private void ChangeDirectoryRebex(string directory)
        {
            scripting.SendCommand("pwd");
            string pwd = FormatedPath(scripting.ReadUntilPrompt()) ;

            scripting.SendCommand("cd " + pwd + directory);
            string line = ssh.RunCommand("cd " + pwd + directory + "; ls");
            string[] words = line.Split('\n');


            List<string> temp = new List<string>();
            foreach (var item in words)
            {
                if (!String.IsNullOrEmpty(item))
                    temp.Add(item);
            }

            RellenarLista(temp, list);
        }

        // Funcion para cambiar el directorio en SSH .NET
        private void ChangeDirectorySSH(string directory)
        {
            
            path = path + directory + "/";
            
            string line = client.RunCommand("cd " + path + ";ls").Result;
            string[] words = line.Split('\n');


            List<string> temp = new List<string>();
            foreach (var item in words)
            {
                if (!String.IsNullOrEmpty(item))
                    temp.Add(item);
            }

            RellenarLista(temp, list);
        }

        // Volver al directorio anterior en Rebex
        private void BackDirectoryRebex()
        {
            scripting.SendCommand("cd ..");
            scripting.SendCommand("pwd");
            string pwd = FormatedPath(scripting.ReadUntilPrompt()) ;

            scripting.SendCommand("cd " + pwd);
            //scripting.SendCommand("ls ");
            string line = ssh.RunCommand("cd " + pwd + "; ls");
            string[] words = line.Split('\n');

            List<string> temp = new List<string>();
            foreach (var item in words)
            {
                if (!String.IsNullOrEmpty(item))
                    temp.Add(item);
            }

            RellenarLista(temp, list);
        }

        // Volver al directorio anterior en SSH .NET
        private void BackDirectorySSH()
        {
            string pwd = client.RunCommand("cd " + path + "; cd .. ; pwd ").Result;

            path = FormatedPath(pwd);

            string line = client.RunCommand("cd " + path + "; ls ").Result;
            string[] words = line.Split('\n');

            List<string> temp = new List<string>();
            foreach (var item in words)
            {
                if (!String.IsNullOrEmpty(item))
                    temp.Add(item);
            }

            RellenarLista(temp, list);

        }

        // Rellenar la lista
        private void RellenarLista(List<string> temp, ListView list)
        {
            list.Adapter = null;
            ArrayAdapter<String> adaptador = new ArrayAdapter<String>(this, Android.Resource.Layout.SimpleListItem1, temp);
            list.Adapter = adaptador;
        }

        public override bool OnCreateOptionsMenu(IMenu menu)
        {
            MenuInflater.Inflate(Resource.Menu.menu_main, menu);
            return true;
        }

        public override bool OnOptionsItemSelected(IMenuItem item)
        {
            int id = item.ItemId;
            if (id == Resource.Id.action_settings)
            {
                return true;
            }

            return base.OnOptionsItemSelected(item);
        }

        // Funcion para obtener la ruta correcta
        private string FormatedPath(string path)
        {
            string replace = string.Empty;

            if (path != null && path.Contains(" "))
                replace = path.Replace(" ", "\\ ").Trim() + "/";
            else
                replace = path;

            return replace.Trim();
        }
    }
}

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using System;

using System.Collections.Generic;

using Acr.UserDialogs;

using Android.App;

using Android.OS;

using Android.Support.V7.App;

using Android.Views;

using Android.Widget;

using Rebex.Net;

using Rebex.TerminalEmulation;

using Renci.SshNet;

using SSH.Operations;

namespace SSH

{

[Activity(Label = "@string/app_name", Theme = "@style/AppTheme.NoActionBar", MainLauncher = true)]

public class MainActivity : AppCompatActivity

{

EditText hostName, user, password, port;

Button btnConnect, btnDisconnect, btnBack;

SshClient client;

Spinner spinner;

Ssh ssh;

ListView list;

String path;

String spinnerSelected;

Scripting scripting;

protected override void OnCreate(Bundle savedInstanceState)

{

base.OnCreate(savedInstanceState);

SetContentView(Resource.Layout.activity_main);

UserDialogs.Init(this);

Rebex.Licensing.Key = Constants.RebexKey;

Android.Support.V7.Widget.Toolbar toolbar = FindViewById<Android.Support.V7.Widget.Toolbar>(Resource.Id.toolbar);

SetSupportActionBar(toolbar);

Instancias();

Acciones();

}

private void Instancias()

{

hostName = FindViewById<EditText>(Resource.Id.hostname);

user = FindViewById<EditText>(Resource.Id.user);

port = FindViewById<EditText>(Resource.Id.port);

password = FindViewById<EditText>(Resource.Id.password);

btnConnect = FindViewById<Button>(Resource.Id.btnConnect);

btnDisconnect = FindViewById<Button>(Resource.Id.btnDisconnect);

btnBack = FindViewById<Button>(Resource.Id.btnBack);

list = FindViewById<ListView>(Resource.Id.listView);

spinner = FindViewById<Spinner>(Resource.Id.spinner);

}

private void Acciones()

{

btnConnect.Click += OnConnectSSH;

btnDisconnect.Click += OnDisconnectSSH;

btnBack.Click += OnBackClick;

list.ItemClick += OnListClicked;

spinner.ItemSelected += OnSpinnerCLick;

}

//Pulsacion del spinner para cambiar de libreria SSH

private void OnSpinnerCLick(object sender, AdapterView.ItemSelectedEventArgs e)

{

spinnerSelected = spinner.GetItemAtPosition(e.Position).ToString();

}

// Boton para volver atras

private void OnBackClick(object sender, EventArgs e)

{

if (spinnerSelected.Equals(GetString(Resource.String.rebexssh)))

BackDirectoryRebex();

else if (spinnerSelected.Equals(GetString(Resource.String.sshnet)))

BackDirectorySSH();

}

// Seleccion de la lista de directorios o ficheros

private void OnListClicked(object sender, AdapterView.ItemClickEventArgs e)

{

String selected = list.GetItemAtPosition(e.Position).ToString();

if (selected.Contains("."))

{

Toast.MakeText(this, "No se puede abrir el archivo", ToastLength.Short).Show();

return;

}

string directory = FormatedPath(selected);

if (spinnerSelected.Equals(GetString(Resource.String.rebexssh)))

ChangeDirectoryRebex(directory);

else if (spinnerSelected.Equals(GetString(Resource.String.sshnet)))

ChangeDirectorySSH(directory);

}

// Desconectar cliente dependiendo de la librería

private void OnDisconnectSSH(object sender, EventArgs e)

{

try

{

if (spinnerSelected.Equals(GetString(Resource.String.rebexssh)))

{

ssh.Disconnect();

if (!ssh.IsConnected)

{

DisconnectSSH();

Toast.MakeText(this, "Cliente desconectado", ToastLength.Short).Show();

}

else if (spinnerSelected.Equals(GetString(Resource.String.sshnet)))

{

client.Disconnect();

if (!client.IsConnected)

{

DisconnectSSH();

Toast.MakeText(this, "Cliente desconectado", ToastLength.Short).Show();

}

catch (Exception ex)

{

Toast.MakeText(this, ex.Message, ToastLength.Long).Show();

}

private void DisconnectSSH()

{

list.Adapter = null;

btnDisconnect.Enabled = false;

btnBack.Enabled = false;

btnConnect.Enabled = true;

path = String.Empty;

}

// Conectar dependiendo de la libreria

private void OnConnectSSH(object sender, EventArgs e)

{

// Obtener los datos introducidos

var _hostName = hostName.Text;

var _user = user.Text;

var _password = password.Text;

var _port = port.Text;

//SSH .NET

client = new SshClient(_hostName, Int32.Parse(_port), _user, _password);

//Rebex SSH

ssh = new Rebex.Net.Ssh();

try

{

if (spinnerSelected.Equals(GetString(Resource.String.rebexssh)))

ClientConnectRebex(ssh);

else if (spinnerSelected.Equals(GetString(Resource.String.sshnet)))

ClientConnect(client);

}

catch (Exception ex)

{

Toast.MakeText(this, ex.Message, ToastLength.Short).Show();

btnConnect.Enabled = true;

}

// Conectar el cliente con la libreria SSH .NET

private void ClientConnect(SshClient client)

{

client.Connect();

if (client.IsConnected)

{

Toast.MakeText(this, "Cliente conectado", ToastLength.Short).Show();

btnDisconnect.Enabled = true;

btnBack.Enabled = true;

btnConnect.Enabled = false;

}

string answer = client.RunCommand("ls").Result;

string[] words = answer.Split('\n');

path = FormatedPath(client.RunCommand("pwd").Result);

List<string> temp = new List<string>();

foreach (var item in words)

{

if (!String.IsNullOrEmpty(item))

temp.Add(item);

}

RellenarLista(temp, list);

}

// Conectar el cliente con la libreria Rebex SSH

private void ClientConnectRebex(Rebex.Net.Ssh ssh)

{

ssh.Connect(hostName.Text, Int32.Parse(port.Text));

ssh.Login(user.Text, password.Text);

if (ssh.IsConnected)

{

Toast.MakeText(this, "Cliente conectado", ToastLength.Short).Show();

btnDisconnect.Enabled = true;

btnBack.Enabled = true;

btnConnect.Enabled = false;

}

scripting = ssh.StartScripting();

scripting.DetectPrompt();

scripting.SendCommand("ls");

string line = scripting.ReadUntilPrompt();

string[] words = line.Split(' ');

List<string> temp = new List<string>();

foreach (var item in words)

{

if (!String.IsNullOrEmpty(item))

temp.Add(item);

}

RellenarLista(temp, list);

}

// Funcion para cambiar el directorio en Rebex SSH

private void ChangeDirectoryRebex(string directory)

{

scripting.SendCommand("pwd");

string pwd = FormatedPath(scripting.ReadUntilPrompt()) ;

scripting.SendCommand("cd " + pwd + directory);

string line = ssh.RunCommand("cd " + pwd + directory + "; ls");

string[] words = line.Split('\n');

List<string> temp = new List<string>();

foreach (var item in words)

{

if (!String.IsNullOrEmpty(item))

temp.Add(item);

}

RellenarLista(temp, list);

}

// Funcion para cambiar el directorio en SSH .NET

private void ChangeDirectorySSH(string directory)

{

path = path + directory + "/";

string line = client.RunCommand("cd " + path + ";ls").Result;

string[] words = line.Split('\n');

List<string> temp = new List<string>();

foreach (var item in words)

{

if (!String.IsNullOrEmpty(item))

temp.Add(item);

}

RellenarLista(temp, list);

}

// Volver al directorio anterior en Rebex

private void BackDirectoryRebex()

{

scripting.SendCommand("cd ..");

scripting.SendCommand("pwd");

string pwd = FormatedPath(scripting.ReadUntilPrompt()) ;

scripting.SendCommand("cd " + pwd);

//scripting.SendCommand("ls ");

string line = ssh.RunCommand("cd " + pwd + "; ls");

string[] words = line.Split('\n');

List<string> temp = new List<string>();

foreach (var item in words)

{

if (!String.IsNullOrEmpty(item))

temp.Add(item);

}

RellenarLista(temp, list);

}

// Volver al directorio anterior en SSH .NET

private void BackDirectorySSH()

{

string pwd = client.RunCommand("cd " + path + "; cd .. ; pwd ").Result;

path = FormatedPath(pwd);

string line = client.RunCommand("cd " + path + "; ls ").Result;

string[] words = line.Split('\n');

List<string> temp = new List<string>();

foreach (var item in words)

{

if (!String.IsNullOrEmpty(item))

temp.Add(item);

}

RellenarLista(temp, list);

}

// Rellenar la lista

private void RellenarLista(List<string> temp, ListView list)

{

list.Adapter = null;

ArrayAdapter<String> adaptador = new ArrayAdapter<String>(this, Android.Resource.Layout.SimpleListItem1, temp);

list.Adapter = adaptador;

}

public override bool OnCreateOptionsMenu(IMenu menu)

{

MenuInflater.Inflate(Resource.Menu.menu_main, menu);

return true;

}

public override bool OnOptionsItemSelected(IMenuItem item)

{

int id = item.ItemId;

if (id == Resource.Id.action_settings)

{

return true;

}

return base.OnOptionsItemSelected(item);

}

// Funcion para obtener la ruta correcta

private string FormatedPath(string path)

{

string replace = string.Empty;

if (path != null && path.Contains(" "))

replace = path.Replace(" ", "\\ ").Trim() + "/";

else

replace = path;

return replace.Trim();

}

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