PHP SSH2 Wrapper

gistfile1.txt

<?php

class SSH{
	var $host='';
	var $port='';
	var $user='';
	var $pass='';
	var $connection='';
	var $sudo='';
	var $authed=false;
	var $privkey=false;
	var $pubkey=false;
	var $passphrase=false;
	var $connect_rsa=false;

	public function __construct($host, $port, $user, $pass=false, $pubkey=false, $privkey=false, $passphrase=false){
		$this->host=$host;
		$this->port=$port;
		$this->user=$user;
		$this->pass=$pass;

		if($privkey && $pubkey){
			$this->privkey=$privkey;
			$this->pubkey=$pubkey;
			if($passphrase) $this->passphrase=$passphrase;
			$this->connect_rsa = array('hostkey'=>'ssh-rsa');
		} else if($user != 'root') $this->sudo="echo '$pass' | sudo -S ";
		
		$this->Connect();
		$this->Auth();
	}

	public function __destruct(){
		$this->Execute('exit');
	}

	public function Connect(){
		$this->connection = ssh2_connect($this->host, $this->port, $this->connect_rsa);
	}

	public function Auth(){
		if(!$this->connection) return false;
		$this->authed = $this->connect_rsa != false
			? ssh2_auth_pubkey_file($this->connection, $this->user, $this->pubkey, $this->privkey, $this->passphrase)
			: ssh2_auth_password($this->connection, $this->user, $this->pass);
	}

	public function Execute($command, $return=false){
		if(!$this->authed) return false;
		$stream=ssh2_exec($this->connection, $this->sudo.$command); 
		stream_set_blocking( $stream, true ); 
		if($return) $cmd = fread($stream, 8096);
		fclose($stream); 
		if($return) return trim($cmd);
	}

	public function Screen($command, $screen){
		$screenlog="/root/.screenrc.watch$screen";
		$screencontent= "logfile /root/screenwatch$screen.log\nlog on";

		$this->Execute("printf '$screencontent' > $screenlog", true);
		return $this->Execute("screen -c $screenlog -mdLS screenwatch$screen bash -c \"$command\"", true);
	}

	public function Watch($screen){
		$screenStatus=$this->Execute("screen -wipe > /dev/null ; screen -list | grep screenwatch$screen | awk -F . '{ print $1 }' | sed -e s/.//", true);
		$screenLog=$this->Execute("cat ~/screenwatch$screen.log", true);

		return array((int) $screenStatus, $screenLog);
	}
}
?>