SSH connection PHP

define("SSH_IP", "127.0.0.1");
define("SSH_PORT", "22");
define("SSH_USER", "someuser");
define("SSH_PASS", "somepass");
define("SSH_IS_SET_FP", true); // true if set fingerprint
define("SSH_FINGER_PRINT", "123adfes54e5451254d587");

/**
* @package ssh modul class
* @author $Author: Lukas Mestan $
* @version $Id: class_ssh2.php,v 0.1.5 2008/12/12 15:58:15 Lukas Mestan Exp $
* @since v.0.1.5
* @copyright (c) Lukas Mestan
*/
class SSH2_Connect
{
/**
* Condition for command
* @var string
* @access private
*/
private $con=NULL;

/**
* Shell script to execute
* @var string
* @access public
*/
public $script="";

/**
* Array list of negotiated
* @var array
* @access public
*/
public $info=array();

/**
* Destructor
* @access public
* @return void
*/
function __destruct() {
if(function_exists('ssh2_disconnect')){
ssh2_disconnect($this->con);
}else{
@fclose($this->con);
unset($this->con);
}
return NULL;
}

/**
* Constructor - Conect to ssh
* @access public
* @return bool
*/
function __construct(){
if(!function_exists("ssh2_connect")){
throw new Exception("ERROR: Function ssh2_connect not exist");
}
if(!($this->con = ssh2_connect(SSH_IP, SSH_PORT))){
throw new Exception("ERROR: Invalid connect to ssh");
}else{
if(SSH_IS_SET_FP){
$fingerprint = ssh2_fingerprint($this->con, SSH2_FINGERPRINT_MD5 | SSH2_FINGERPRINT_HEX);
if($fingerprint != SSH_FINGER_PRINT){
throw new Exception("ERROR: Invalid hostkey hash");
}
}
if(!ssh2_auth_password($this->con, SSH_USER, SSH_PASS)){
throw new Exception("ERROR: Invalid authentification");
}else{
return true;
}
}
}

/**
* Returns list of negotiated methods.
* @access public
* @return array
*/
public function GetSSHInfo(){
$this->info = ssh2_methods_negotiated($this->con);
return $this->info;
}

/**
* Send File via ssh
* @access public
* @param string $from
* @param string $to
* @param string $chmod
* @return bool
*/
public function SendFile($from,$to,$chmod="0644"){
if(ssh2_scp_send($this->con, $from, $to, $chmod)){
return true
}else{
throw new Exception("ERROR: Could not send file");
}
}

/**
* Recive File via ssh
* @access public
* @param string $from
* @param string $to
* @return bool
*/
public function ReciveFile($from,$to){
if(ssh2_scp_recv($this->con, $from, $to)){
return true
}else{
throw new Exception("ERROR: Could not recive file");
}
}

/**
* Execute shell script (without output)
* @param string $script
* @access public
* @return bool
*/
public function SSH_Start_Script($script,$setnull=true){
$this->script =& strval($script);
if($this->script==""){
throw new Exception("ERROR: Parameters script is empty");
}
if($this->SSH_to_Connect()){
if(!($stream = ssh2_exec($this->con, $this->script.($setnull?" > /dev/null 2>&1":"")))){
throw new Exception("ERROR in ssh2_exec");
}else{
return true;
}
}else{
throw new Exception("ERROR: Invalid connect to ssh");
}
}
}

?>