ssh2_auth_password

Description

bool ssh2_auth_password ( resource session, string username, string password )

Authenticate over SSH using a plain password

例子 1. Authenticating with a password


<?php
$connection = ssh2_connect('shell.example.com', 22);

if (ssh2_auth_password($connection, 'username', 'secret')) {
  echo "Authentication Successful!\n";
} else {
  die('Authentication Failed...');
}
?>

add a note User Contributed Notes

noels01 at gmx dot net
30-Aug-2005 02:34


Hey, the start for a PEAR SSH2 package! The code is available under the GNU GPL ;-)

<?php



class SSH2

{

    private $con;

    private $host;

    private $port;

    private $login;

    

    public function __construct($host=NULL, $port=22)

    {

        $this->host = $host;

        $this->port = $port;



        $this->con = ssh2_connect($this->host, $this->port);

        // connection attempt successful ?

        if($this->con === false)

        {

            $this->con = NULL;

            throw new SSH2Exception("Could not connect to host '".$this->host."' on port ".$this->port);

        }

    }

    

    public function login($login=NULL, $password=NULL)

    {

        if(empty($login)) {

            throw new IllegalArgumentException("Login failed, no username supplied");

        }

        $this->login = $login;



        // try to log in

        if(!ssh2_auth_password($this->con, $this->login, $password))

        {

            $this->con = NULL;

            throw new SSH2Exception("Password authentication failed for user '".$this->login."'");

        }

    }

    

    // returns an array like: array('stdout goes here', 'stderr')

    public function exec($cmd)

    {

        if(empty($this->con)) {

            throw new SSH2Exception("Exec failed, no connection available");

        }

        // execute the command

        $stdio  = ssh2_exec($this->con, $cmd);

        // get the error stream, otherwise this would be lost

        $stderr = ssh2_fetch_stream ($stdio, SSH2_STREAM_STDERR);

        // set to blocking mode or we won't get any data

        stream_set_blocking($stdio, true);

        

        $data_std = '';

        $data_err = '';

        // let's fetch the result of our command

        while($data = fread($stdio, 131072)) {

        //while($data = fgets($stdio)) {

            $data_std .= $data;

        }

        while($data = fread($stderr, 80000)) {

            $data_err .= $data;

        }

        // close the streams

        fclose($stdio);

        fclose($stderr);

        

        return array($data_std, $data_err);

    }

}



class SSH2Exception extends Exception {}

class IllegalArgumentException extends Exception {}



?>

noels01 at gmx dot net
29-Aug-2005 08:56


Do not try to authenticate or log in more than once on a ssh2 connection. It won't work. You'll need a new connection via ssh2_connect() which will result in a poor performance if you're doing several connects to the same server.

06-Jun-2005 10:49


The sshd you are trying to connect to requires PasswordAuthentication yes in its sshd_config file.



Most normal SSH features work with this off, but this requires it on. Note, this defaults to off in FreeBSD 5.x

add a note